Commit | Line | Data |
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35c08157 | 1 | /* NDS32-specific support for 32-bit ELF. |
b3adc24a | 2 | Copyright (C) 2012-2020 Free Software Foundation, Inc. |
35c08157 KLC |
3 | Contributed by Andes Technology Corporation. |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA | |
1c8f6a4d | 20 | 02110-1301, USA. */ |
35c08157 KLC |
21 | |
22 | ||
23 | #include "sysdep.h" | |
24 | #include "bfd.h" | |
35c08157 KLC |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "elf-bfd.h" | |
28 | #include "libiberty.h" | |
35c08157 KLC |
29 | #include "elf/nds32.h" |
30 | #include "opcode/nds32.h" | |
31 | #include "elf32-nds32.h" | |
32 | #include "opcode/cgen.h" | |
33 | #include "../opcodes/nds32-opc.h" | |
34 | ||
bb294208 AM |
35 | /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */ |
36 | #define OCTETS_PER_BYTE(ABFD, SEC) 1 | |
37 | ||
35c08157 KLC |
38 | /* Relocation HOWTO functions. */ |
39 | static bfd_reloc_status_type nds32_elf_ignore_reloc | |
40 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
41 | static bfd_reloc_status_type nds32_elf_9_pcrel_reloc | |
42 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
43 | static bfd_reloc_status_type nds32_elf_hi20_reloc | |
44 | (bfd *, arelent *, asymbol *, void *, | |
45 | asection *, bfd *, char **); | |
46 | static bfd_reloc_status_type nds32_elf_lo12_reloc | |
47 | (bfd *, arelent *, asymbol *, void *, | |
48 | asection *, bfd *, char **); | |
49 | static bfd_reloc_status_type nds32_elf_generic_reloc | |
50 | (bfd *, arelent *, asymbol *, void *, | |
51 | asection *, bfd *, char **); | |
52 | static bfd_reloc_status_type nds32_elf_sda15_reloc | |
53 | (bfd *, arelent *, asymbol *, void *, | |
54 | asection *, bfd *, char **); | |
55 | ||
56 | /* Helper functions for HOWTO. */ | |
57 | static bfd_reloc_status_type nds32_elf_do_9_pcrel_reloc | |
58 | (bfd *, reloc_howto_type *, asection *, bfd_byte *, bfd_vma, | |
59 | asection *, bfd_vma, bfd_vma); | |
35c08157 KLC |
60 | |
61 | /* Nds32 helper functions. */ | |
35c08157 | 62 | static bfd_vma calculate_memory_address |
fbaf61ad | 63 | (bfd *, Elf_Internal_Rela *, Elf_Internal_Sym *, Elf_Internal_Shdr *); |
0c4bd9d9 KLC |
64 | static int nds32_get_section_contents (bfd *, asection *, |
65 | bfd_byte **, bfd_boolean); | |
35c08157 KLC |
66 | static int nds32_get_local_syms (bfd *, asection *ATTRIBUTE_UNUSED, |
67 | Elf_Internal_Sym **); | |
35c08157 KLC |
68 | static bfd_boolean nds32_relax_fp_as_gp |
69 | (struct bfd_link_info *link_info, bfd *abfd, asection *sec, | |
70 | Elf_Internal_Rela *internal_relocs, Elf_Internal_Rela *irelend, | |
71 | Elf_Internal_Sym *isymbuf); | |
72 | static bfd_boolean nds32_fag_remove_unused_fpbase | |
73 | (bfd *abfd, asection *sec, Elf_Internal_Rela *internal_relocs, | |
74 | Elf_Internal_Rela *irelend); | |
75 | ||
76 | enum | |
77 | { | |
78 | MACH_V1 = bfd_mach_n1h, | |
79 | MACH_V2 = bfd_mach_n1h_v2, | |
80 | MACH_V3 = bfd_mach_n1h_v3, | |
81 | MACH_V3M = bfd_mach_n1h_v3m | |
82 | }; | |
83 | ||
84 | #define MIN(a, b) ((a) > (b) ? (b) : (a)) | |
85 | #define MAX(a, b) ((a) > (b) ? (a) : (b)) | |
86 | ||
87 | /* The name of the dynamic interpreter. This is put in the .interp | |
88 | section. */ | |
89 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
90 | ||
fbaf61ad NC |
91 | #define NDS32_GUARD_SEC_P(flags) ((flags) & SEC_ALLOC \ |
92 | && (flags) & SEC_LOAD \ | |
93 | && (flags) & SEC_READONLY) | |
94 | ||
35c08157 KLC |
95 | /* The nop opcode we use. */ |
96 | #define NDS32_NOP32 0x40000009 | |
97 | #define NDS32_NOP16 0x9200 | |
98 | ||
99 | /* The size in bytes of an entry in the procedure linkage table. */ | |
100 | #define PLT_ENTRY_SIZE 24 | |
101 | #define PLT_HEADER_SIZE 24 | |
102 | ||
103 | /* The first entry in a procedure linkage table are reserved, | |
104 | and the initial contents are unimportant (we zero them out). | |
105 | Subsequent entries look like this. */ | |
07d6d2b8 AM |
106 | #define PLT0_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(.got+4) */ |
107 | #define PLT0_ENTRY_WORD1 0x58f78000 /* ori r15, r25, LO12(.got+4) */ | |
108 | #define PLT0_ENTRY_WORD2 0x05178000 /* lwi r17, [r15+0] */ | |
109 | #define PLT0_ENTRY_WORD3 0x04f78001 /* lwi r15, [r15+4] */ | |
110 | #define PLT0_ENTRY_WORD4 0x4a003c00 /* jr r15 */ | |
35c08157 KLC |
111 | |
112 | /* $ta is change to $r15 (from $r25). */ | |
113 | #define PLT0_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[1]@GOT) */ | |
07d6d2b8 AM |
114 | #define PLT0_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[1]@GOT) */ |
115 | #define PLT0_PIC_ENTRY_WORD2 0x40f7f400 /* add r15, gp, r15 */ | |
116 | #define PLT0_PIC_ENTRY_WORD3 0x05178000 /* lwi r17, [r15+0] */ | |
117 | #define PLT0_PIC_ENTRY_WORD4 0x04f78001 /* lwi r15, [r15+4] */ | |
118 | #define PLT0_PIC_ENTRY_WORD5 0x4a003c00 /* jr r15 */ | |
119 | ||
120 | #define PLT_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(&got[n+3]) */ | |
121 | #define PLT_ENTRY_WORD1 0x04f78000 /* lwi r15, r15, LO12(&got[n+3]) */ | |
122 | #define PLT_ENTRY_WORD2 0x4a003c00 /* jr r15 */ | |
123 | #define PLT_ENTRY_WORD3 0x45000000 /* movi r16, sizeof(RELA) * n */ | |
124 | #define PLT_ENTRY_WORD4 0x48000000 /* j .plt0. */ | |
35c08157 KLC |
125 | |
126 | #define PLT_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[n+3]@GOT) */ | |
07d6d2b8 AM |
127 | #define PLT_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[n+3]@GOT) */ |
128 | #define PLT_PIC_ENTRY_WORD2 0x38febc02 /* lw r15, [gp+r15] */ | |
129 | #define PLT_PIC_ENTRY_WORD3 0x4a003c00 /* jr r15 */ | |
130 | #define PLT_PIC_ENTRY_WORD4 0x45000000 /* movi r16, sizeof(RELA) * n */ | |
131 | #define PLT_PIC_ENTRY_WORD5 0x48000000 /* j .plt0 */ | |
35c08157 | 132 | |
1c8f6a4d KLC |
133 | /* These are macros used to get the relocation accurate value. */ |
134 | #define ACCURATE_8BIT_S1 (0x100) | |
135 | #define ACCURATE_U9BIT_S1 (0x400) | |
136 | #define ACCURATE_12BIT_S1 (0x2000) | |
137 | #define ACCURATE_14BIT_S1 (0x4000) | |
138 | #define ACCURATE_19BIT (0x40000) | |
139 | ||
140 | /* These are macros used to get the relocation conservative value. */ | |
141 | #define CONSERVATIVE_8BIT_S1 (0x100 - 4) | |
142 | #define CONSERVATIVE_14BIT_S1 (0x4000 - 4) | |
143 | #define CONSERVATIVE_16BIT_S1 (0x10000 - 4) | |
144 | #define CONSERVATIVE_24BIT_S1 (0x1000000 - 4) | |
145 | /* These must be more conservative because the address may be in | |
146 | different segment. */ | |
147 | #define CONSERVATIVE_15BIT (0x4000 - 0x1000) | |
148 | #define CONSERVATIVE_15BIT_S1 (0x8000 - 0x1000) | |
149 | #define CONSERVATIVE_15BIT_S2 (0x10000 - 0x1000) | |
150 | #define CONSERVATIVE_19BIT (0x40000 - 0x1000) | |
151 | #define CONSERVATIVE_20BIT (0x80000 - 0x1000) | |
152 | ||
35c08157 KLC |
153 | /* Size of small data/bss sections, used to calculate SDA_BASE. */ |
154 | static long got_size = 0; | |
155 | static int is_SDA_BASE_set = 0; | |
35c08157 | 156 | |
35c08157 KLC |
157 | /* Convert ELF-VER in eflags to string for debugging purpose. */ |
158 | static const char *const nds32_elfver_strtab[] = | |
159 | { | |
160 | "ELF-1.2", | |
161 | "ELF-1.3", | |
162 | "ELF-1.4", | |
163 | }; | |
164 | ||
165 | /* The nds32 linker needs to keep track of the number of relocs that it | |
166 | decides to copy in check_relocs for each symbol. This is so that | |
167 | it can discard PC relative relocs if it doesn't need them when | |
168 | linking with -Bsymbolic. We store the information in a field | |
169 | extending the regular ELF linker hash table. */ | |
170 | ||
171 | /* This structure keeps track of the number of PC relative relocs we | |
172 | have copied for a given symbol. */ | |
173 | ||
174 | struct elf_nds32_pcrel_relocs_copied | |
175 | { | |
176 | /* Next section. */ | |
177 | struct elf_nds32_pcrel_relocs_copied *next; | |
178 | /* A section in dynobj. */ | |
179 | asection *section; | |
180 | /* Number of relocs copied in this section. */ | |
181 | bfd_size_type count; | |
182 | }; | |
183 | ||
fbaf61ad NC |
184 | enum elf_nds32_tls_type |
185 | { | |
186 | GOT_UNKNOWN = (0), | |
187 | GOT_NORMAL = (1 << 0), | |
188 | GOT_TLS_LE = (1 << 1), | |
189 | GOT_TLS_IE = (1 << 2), | |
190 | GOT_TLS_IEGP = (1 << 3), | |
191 | GOT_TLS_LD = (1 << 4), | |
192 | GOT_TLS_GD = (1 << 5), | |
193 | GOT_TLS_DESC = (1 << 6), | |
194 | }; | |
195 | ||
35c08157 KLC |
196 | /* Nds32 ELF linker hash entry. */ |
197 | ||
198 | struct elf_nds32_link_hash_entry | |
199 | { | |
200 | struct elf_link_hash_entry root; | |
201 | ||
202 | /* Track dynamic relocs copied for this symbol. */ | |
3bf083ed | 203 | struct elf_dyn_relocs *dyn_relocs; |
1c8f6a4d KLC |
204 | |
205 | /* For checking relocation type. */ | |
fbaf61ad NC |
206 | enum elf_nds32_tls_type tls_type; |
207 | ||
208 | int offset_to_gp; | |
35c08157 KLC |
209 | }; |
210 | ||
211 | /* Get the nds32 ELF linker hash table from a link_info structure. */ | |
212 | ||
213 | #define FP_BASE_NAME "_FP_BASE_" | |
214 | static int check_start_export_sym = 0; | |
35c08157 | 215 | |
1c8f6a4d KLC |
216 | /* The offset for executable tls relaxation. */ |
217 | #define TP_OFFSET 0x0 | |
218 | ||
fbaf61ad NC |
219 | typedef struct |
220 | { | |
221 | int min_id; | |
222 | int max_id; | |
223 | int count; | |
224 | int bias; | |
225 | int init; | |
226 | } elf32_nds32_relax_group_t; | |
227 | ||
1c8f6a4d KLC |
228 | struct elf_nds32_obj_tdata |
229 | { | |
230 | struct elf_obj_tdata root; | |
231 | ||
232 | /* tls_type for each local got entry. */ | |
233 | char *local_got_tls_type; | |
fbaf61ad NC |
234 | |
235 | /* GOTPLT entries for TLS descriptors. */ | |
236 | bfd_vma *local_tlsdesc_gotent; | |
237 | ||
238 | /* for R_NDS32_RELAX_GROUP handling. */ | |
239 | elf32_nds32_relax_group_t relax_group; | |
240 | ||
241 | unsigned int hdr_size; | |
242 | int* offset_to_gp; | |
1c8f6a4d KLC |
243 | }; |
244 | ||
245 | #define elf_nds32_tdata(bfd) \ | |
246 | ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any) | |
247 | ||
248 | #define elf32_nds32_local_got_tls_type(bfd) \ | |
249 | (elf_nds32_tdata (bfd)->local_got_tls_type) | |
250 | ||
fbaf61ad NC |
251 | #define elf32_nds32_local_gp_offset(bfd) \ |
252 | (elf_nds32_tdata (bfd)->offset_to_gp) | |
253 | ||
1c8f6a4d KLC |
254 | #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent)) |
255 | ||
fbaf61ad NC |
256 | #define elf32_nds32_relax_group_ptr(bfd) \ |
257 | &(elf_nds32_tdata (bfd)->relax_group) | |
258 | ||
1c8f6a4d KLC |
259 | static bfd_boolean |
260 | nds32_elf_mkobject (bfd *abfd) | |
261 | { | |
262 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_nds32_obj_tdata), | |
263 | NDS32_ELF_DATA); | |
264 | } | |
265 | ||
35c08157 | 266 | /* Relocations used for relocation. */ |
fbaf61ad NC |
267 | /* Define HOWTO2 (for relocation) and HOWTO3 (for relaxation) to |
268 | initialize array nds32_elf_howto_table in any order. The benefit | |
269 | is that we can add any new relocations with any numbers and don't | |
270 | need to fill the gap by lots of EMPTY_HOWTO. */ | |
271 | #define HOWTO2(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ | |
272 | [C] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) | |
273 | ||
35c08157 KLC |
274 | static reloc_howto_type nds32_elf_howto_table[] = |
275 | { | |
276 | /* This reloc does nothing. */ | |
fbaf61ad NC |
277 | HOWTO2 (R_NDS32_NONE, /* type */ |
278 | 0, /* rightshift */ | |
279 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
280 | 32, /* bitsize */ | |
281 | FALSE, /* pc_relative */ | |
282 | 0, /* bitpos */ | |
283 | complain_overflow_bitfield,/* complain_on_overflow */ | |
284 | bfd_elf_generic_reloc, /* special_function */ | |
285 | "R_NDS32_NONE", /* name */ | |
286 | FALSE, /* partial_inplace */ | |
287 | 0, /* src_mask */ | |
288 | 0, /* dst_mask */ | |
289 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
290 | |
291 | /* A 16 bit absolute relocation. */ | |
fbaf61ad NC |
292 | HOWTO2 (R_NDS32_16, /* type */ |
293 | 0, /* rightshift */ | |
294 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
295 | 16, /* bitsize */ | |
296 | FALSE, /* pc_relative */ | |
297 | 0, /* bitpos */ | |
298 | complain_overflow_bitfield,/* complain_on_overflow */ | |
299 | nds32_elf_generic_reloc,/* special_function */ | |
300 | "R_NDS32_16", /* name */ | |
301 | FALSE, /* partial_inplace */ | |
302 | 0xffff, /* src_mask */ | |
303 | 0xffff, /* dst_mask */ | |
304 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
305 | |
306 | /* A 32 bit absolute relocation. */ | |
fbaf61ad NC |
307 | HOWTO2 (R_NDS32_32, /* type */ |
308 | 0, /* rightshift */ | |
309 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
310 | 32, /* bitsize */ | |
311 | FALSE, /* pc_relative */ | |
312 | 0, /* bitpos */ | |
313 | complain_overflow_bitfield,/* complain_on_overflow */ | |
314 | nds32_elf_generic_reloc,/* special_function */ | |
315 | "R_NDS32_32", /* name */ | |
316 | FALSE, /* partial_inplace */ | |
317 | 0xffffffff, /* src_mask */ | |
318 | 0xffffffff, /* dst_mask */ | |
319 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
320 | |
321 | /* A 20 bit address. */ | |
fbaf61ad NC |
322 | HOWTO2 (R_NDS32_20, /* type */ |
323 | 0, /* rightshift */ | |
324 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
325 | 20, /* bitsize */ | |
326 | FALSE, /* pc_relative */ | |
327 | 0, /* bitpos */ | |
328 | complain_overflow_unsigned,/* complain_on_overflow */ | |
329 | nds32_elf_generic_reloc,/* special_function */ | |
330 | "R_NDS32_20", /* name */ | |
331 | FALSE, /* partial_inplace */ | |
332 | 0xfffff, /* src_mask */ | |
333 | 0xfffff, /* dst_mask */ | |
334 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
335 | |
336 | /* An PC Relative 9-bit relocation, shifted by 2. | |
337 | This reloc is complicated because relocations are relative to pc & -4. | |
338 | i.e. branches in the right insn slot use the address of the left insn | |
339 | slot for pc. */ | |
fbaf61ad | 340 | /* It's not clear whether this should have partial_inplace set or not. |
35c08157 KLC |
341 | Branch relaxing in the assembler can store the addend in the insn, |
342 | and if bfd_install_relocation gets called the addend may get added | |
343 | again. */ | |
fbaf61ad NC |
344 | HOWTO2 (R_NDS32_9_PCREL, /* type */ |
345 | 1, /* rightshift */ | |
346 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
347 | 8, /* bitsize */ | |
348 | TRUE, /* pc_relative */ | |
349 | 0, /* bitpos */ | |
350 | complain_overflow_signed,/* complain_on_overflow */ | |
351 | nds32_elf_9_pcrel_reloc,/* special_function */ | |
352 | "R_NDS32_9_PCREL", /* name */ | |
353 | FALSE, /* partial_inplace */ | |
354 | 0xff, /* src_mask */ | |
355 | 0xff, /* dst_mask */ | |
356 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
357 | |
358 | /* A relative 15 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
359 | HOWTO2 (R_NDS32_15_PCREL, /* type */ |
360 | 1, /* rightshift */ | |
361 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
362 | 14, /* bitsize */ | |
363 | TRUE, /* pc_relative */ | |
364 | 0, /* bitpos */ | |
365 | complain_overflow_signed,/* complain_on_overflow */ | |
366 | bfd_elf_generic_reloc, /* special_function */ | |
367 | "R_NDS32_15_PCREL", /* name */ | |
368 | FALSE, /* partial_inplace */ | |
369 | 0x3fff, /* src_mask */ | |
370 | 0x3fff, /* dst_mask */ | |
371 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
372 | |
373 | /* A relative 17 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
374 | HOWTO2 (R_NDS32_17_PCREL, /* type */ |
375 | 1, /* rightshift */ | |
376 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
377 | 16, /* bitsize */ | |
378 | TRUE, /* pc_relative */ | |
379 | 0, /* bitpos */ | |
380 | complain_overflow_signed,/* complain_on_overflow */ | |
381 | bfd_elf_generic_reloc, /* special_function */ | |
382 | "R_NDS32_17_PCREL", /* name */ | |
383 | FALSE, /* partial_inplace */ | |
384 | 0xffff, /* src_mask */ | |
385 | 0xffff, /* dst_mask */ | |
386 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
387 | |
388 | /* A relative 25 bit relocation, right shifted by 1. */ | |
fbaf61ad | 389 | /* It's not clear whether this should have partial_inplace set or not. |
35c08157 KLC |
390 | Branch relaxing in the assembler can store the addend in the insn, |
391 | and if bfd_install_relocation gets called the addend may get added | |
392 | again. */ | |
fbaf61ad NC |
393 | HOWTO2 (R_NDS32_25_PCREL, /* type */ |
394 | 1, /* rightshift */ | |
395 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
396 | 24, /* bitsize */ | |
397 | TRUE, /* pc_relative */ | |
398 | 0, /* bitpos */ | |
399 | complain_overflow_signed,/* complain_on_overflow */ | |
400 | bfd_elf_generic_reloc, /* special_function */ | |
401 | "R_NDS32_25_PCREL", /* name */ | |
402 | FALSE, /* partial_inplace */ | |
403 | 0xffffff, /* src_mask */ | |
404 | 0xffffff, /* dst_mask */ | |
405 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
406 | |
407 | /* High 20 bits of address when lower 12 is or'd in. */ | |
fbaf61ad NC |
408 | HOWTO2 (R_NDS32_HI20, /* type */ |
409 | 12, /* rightshift */ | |
410 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
411 | 20, /* bitsize */ | |
412 | FALSE, /* pc_relative */ | |
413 | 0, /* bitpos */ | |
414 | complain_overflow_dont,/* complain_on_overflow */ | |
415 | nds32_elf_hi20_reloc, /* special_function */ | |
416 | "R_NDS32_HI20", /* name */ | |
417 | FALSE, /* partial_inplace */ | |
418 | 0x000fffff, /* src_mask */ | |
419 | 0x000fffff, /* dst_mask */ | |
420 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
421 | |
422 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
423 | HOWTO2 (R_NDS32_LO12S3, /* type */ |
424 | 3, /* rightshift */ | |
425 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
426 | 9, /* bitsize */ | |
427 | FALSE, /* pc_relative */ | |
428 | 0, /* bitpos */ | |
429 | complain_overflow_dont,/* complain_on_overflow */ | |
430 | nds32_elf_lo12_reloc, /* special_function */ | |
431 | "R_NDS32_LO12S3", /* name */ | |
432 | FALSE, /* partial_inplace */ | |
433 | 0x000001ff, /* src_mask */ | |
434 | 0x000001ff, /* dst_mask */ | |
435 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
436 | |
437 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
438 | HOWTO2 (R_NDS32_LO12S2, /* type */ |
439 | 2, /* rightshift */ | |
440 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
441 | 10, /* bitsize */ | |
442 | FALSE, /* pc_relative */ | |
443 | 0, /* bitpos */ | |
444 | complain_overflow_dont,/* complain_on_overflow */ | |
445 | nds32_elf_lo12_reloc, /* special_function */ | |
446 | "R_NDS32_LO12S2", /* name */ | |
447 | FALSE, /* partial_inplace */ | |
448 | 0x000003ff, /* src_mask */ | |
449 | 0x000003ff, /* dst_mask */ | |
450 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
451 | |
452 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
453 | HOWTO2 (R_NDS32_LO12S1, /* type */ |
454 | 1, /* rightshift */ | |
455 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
456 | 11, /* bitsize */ | |
457 | FALSE, /* pc_relative */ | |
458 | 0, /* bitpos */ | |
459 | complain_overflow_dont,/* complain_on_overflow */ | |
460 | nds32_elf_lo12_reloc, /* special_function */ | |
461 | "R_NDS32_LO12S1", /* name */ | |
462 | FALSE, /* partial_inplace */ | |
463 | 0x000007ff, /* src_mask */ | |
464 | 0x000007ff, /* dst_mask */ | |
465 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
466 | |
467 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
468 | HOWTO2 (R_NDS32_LO12S0, /* type */ |
469 | 0, /* rightshift */ | |
470 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
471 | 12, /* bitsize */ | |
472 | FALSE, /* pc_relative */ | |
473 | 0, /* bitpos */ | |
474 | complain_overflow_dont,/* complain_on_overflow */ | |
475 | nds32_elf_lo12_reloc, /* special_function */ | |
476 | "R_NDS32_LO12S0", /* name */ | |
477 | FALSE, /* partial_inplace */ | |
478 | 0x00000fff, /* src_mask */ | |
479 | 0x00000fff, /* dst_mask */ | |
480 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
481 | |
482 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
483 | HOWTO2 (R_NDS32_SDA15S3, /* type */ |
484 | 3, /* rightshift */ | |
485 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
486 | 15, /* bitsize */ | |
487 | FALSE, /* pc_relative */ | |
488 | 0, /* bitpos */ | |
489 | complain_overflow_signed,/* complain_on_overflow */ | |
490 | nds32_elf_sda15_reloc, /* special_function */ | |
491 | "R_NDS32_SDA15S3", /* name */ | |
492 | FALSE, /* partial_inplace */ | |
493 | 0x00007fff, /* src_mask */ | |
494 | 0x00007fff, /* dst_mask */ | |
495 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
496 | |
497 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
498 | HOWTO2 (R_NDS32_SDA15S2, /* type */ |
499 | 2, /* rightshift */ | |
500 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
501 | 15, /* bitsize */ | |
502 | FALSE, /* pc_relative */ | |
503 | 0, /* bitpos */ | |
504 | complain_overflow_signed,/* complain_on_overflow */ | |
505 | nds32_elf_sda15_reloc, /* special_function */ | |
506 | "R_NDS32_SDA15S2", /* name */ | |
507 | FALSE, /* partial_inplace */ | |
508 | 0x00007fff, /* src_mask */ | |
509 | 0x00007fff, /* dst_mask */ | |
510 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
511 | |
512 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
513 | HOWTO2 (R_NDS32_SDA15S1, /* type */ |
514 | 1, /* rightshift */ | |
515 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
516 | 15, /* bitsize */ | |
517 | FALSE, /* pc_relative */ | |
518 | 0, /* bitpos */ | |
519 | complain_overflow_signed,/* complain_on_overflow */ | |
520 | nds32_elf_sda15_reloc, /* special_function */ | |
521 | "R_NDS32_SDA15S1", /* name */ | |
522 | FALSE, /* partial_inplace */ | |
523 | 0x00007fff, /* src_mask */ | |
524 | 0x00007fff, /* dst_mask */ | |
525 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
526 | |
527 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
528 | HOWTO2 (R_NDS32_SDA15S0, /* type */ |
529 | 0, /* rightshift */ | |
530 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
531 | 15, /* bitsize */ | |
532 | FALSE, /* pc_relative */ | |
533 | 0, /* bitpos */ | |
534 | complain_overflow_signed,/* complain_on_overflow */ | |
535 | nds32_elf_sda15_reloc, /* special_function */ | |
536 | "R_NDS32_SDA15S0", /* name */ | |
537 | FALSE, /* partial_inplace */ | |
538 | 0x00007fff, /* src_mask */ | |
539 | 0x00007fff, /* dst_mask */ | |
540 | FALSE), /* pcrel_offset */ | |
541 | ||
542 | /* GNU extension to record C++ vtable hierarchy */ | |
543 | HOWTO2 (R_NDS32_GNU_VTINHERIT,/* type */ | |
544 | 0, /* rightshift */ | |
545 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
546 | 0, /* bitsize */ | |
547 | FALSE, /* pc_relative */ | |
548 | 0, /* bitpos */ | |
549 | complain_overflow_dont,/* complain_on_overflow */ | |
550 | NULL, /* special_function */ | |
551 | "R_NDS32_GNU_VTINHERIT",/* name */ | |
552 | FALSE, /* partial_inplace */ | |
553 | 0, /* src_mask */ | |
554 | 0, /* dst_mask */ | |
555 | FALSE), /* pcrel_offset */ | |
556 | ||
557 | /* GNU extension to record C++ vtable member usage */ | |
558 | HOWTO2 (R_NDS32_GNU_VTENTRY, /* type */ | |
559 | 0, /* rightshift */ | |
560 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
561 | 0, /* bitsize */ | |
562 | FALSE, /* pc_relative */ | |
563 | 0, /* bitpos */ | |
564 | complain_overflow_dont,/* complain_on_overflow */ | |
565 | _bfd_elf_rel_vtable_reloc_fn,/* special_function */ | |
566 | "R_NDS32_GNU_VTENTRY", /* name */ | |
567 | FALSE, /* partial_inplace */ | |
568 | 0, /* src_mask */ | |
569 | 0, /* dst_mask */ | |
570 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
571 | |
572 | /* A 16 bit absolute relocation. */ | |
fbaf61ad NC |
573 | HOWTO2 (R_NDS32_16_RELA, /* type */ |
574 | 0, /* rightshift */ | |
575 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
576 | 16, /* bitsize */ | |
577 | FALSE, /* pc_relative */ | |
578 | 0, /* bitpos */ | |
579 | complain_overflow_bitfield,/* complain_on_overflow */ | |
580 | bfd_elf_generic_reloc, /* special_function */ | |
581 | "R_NDS32_16_RELA", /* name */ | |
582 | FALSE, /* partial_inplace */ | |
583 | 0xffff, /* src_mask */ | |
584 | 0xffff, /* dst_mask */ | |
585 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
586 | |
587 | /* A 32 bit absolute relocation. */ | |
fbaf61ad NC |
588 | HOWTO2 (R_NDS32_32_RELA, /* type */ |
589 | 0, /* rightshift */ | |
590 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
591 | 32, /* bitsize */ | |
592 | FALSE, /* pc_relative */ | |
593 | 0, /* bitpos */ | |
594 | complain_overflow_bitfield,/* complain_on_overflow */ | |
595 | bfd_elf_generic_reloc, /* special_function */ | |
596 | "R_NDS32_32_RELA", /* name */ | |
597 | FALSE, /* partial_inplace */ | |
598 | 0xffffffff, /* src_mask */ | |
599 | 0xffffffff, /* dst_mask */ | |
600 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
601 | |
602 | /* A 20 bit address. */ | |
fbaf61ad NC |
603 | HOWTO2 (R_NDS32_20_RELA, /* type */ |
604 | 0, /* rightshift */ | |
605 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
606 | 20, /* bitsize */ | |
607 | FALSE, /* pc_relative */ | |
608 | 0, /* bitpos */ | |
609 | complain_overflow_signed,/* complain_on_overflow */ | |
610 | bfd_elf_generic_reloc, /* special_function */ | |
611 | "R_NDS32_20_RELA", /* name */ | |
612 | FALSE, /* partial_inplace */ | |
613 | 0xfffff, /* src_mask */ | |
614 | 0xfffff, /* dst_mask */ | |
615 | FALSE), /* pcrel_offset */ | |
616 | ||
617 | HOWTO2 (R_NDS32_9_PCREL_RELA, /* type */ | |
618 | 1, /* rightshift */ | |
619 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
620 | 8, /* bitsize */ | |
621 | TRUE, /* pc_relative */ | |
622 | 0, /* bitpos */ | |
623 | complain_overflow_signed,/* complain_on_overflow */ | |
624 | bfd_elf_generic_reloc, /* special_function */ | |
625 | "R_NDS32_9_PCREL_RELA",/* name */ | |
626 | FALSE, /* partial_inplace */ | |
627 | 0xff, /* src_mask */ | |
628 | 0xff, /* dst_mask */ | |
629 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
630 | |
631 | /* A relative 15 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
632 | HOWTO2 (R_NDS32_15_PCREL_RELA,/* type */ |
633 | 1, /* rightshift */ | |
634 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
635 | 14, /* bitsize */ | |
636 | TRUE, /* pc_relative */ | |
637 | 0, /* bitpos */ | |
638 | complain_overflow_signed,/* complain_on_overflow */ | |
639 | bfd_elf_generic_reloc, /* special_function */ | |
640 | "R_NDS32_15_PCREL_RELA",/* name */ | |
641 | FALSE, /* partial_inplace */ | |
642 | 0x3fff, /* src_mask */ | |
643 | 0x3fff, /* dst_mask */ | |
644 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
645 | |
646 | /* A relative 17 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
647 | HOWTO2 (R_NDS32_17_PCREL_RELA,/* type */ |
648 | 1, /* rightshift */ | |
649 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
650 | 16, /* bitsize */ | |
651 | TRUE, /* pc_relative */ | |
652 | 0, /* bitpos */ | |
653 | complain_overflow_signed,/* complain_on_overflow */ | |
654 | bfd_elf_generic_reloc, /* special_function */ | |
655 | "R_NDS32_17_PCREL_RELA",/* name */ | |
656 | FALSE, /* partial_inplace */ | |
657 | 0xffff, /* src_mask */ | |
658 | 0xffff, /* dst_mask */ | |
659 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
660 | |
661 | /* A relative 25 bit relocation, right shifted by 2. */ | |
fbaf61ad NC |
662 | HOWTO2 (R_NDS32_25_PCREL_RELA,/* type */ |
663 | 1, /* rightshift */ | |
664 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
665 | 24, /* bitsize */ | |
666 | TRUE, /* pc_relative */ | |
667 | 0, /* bitpos */ | |
668 | complain_overflow_signed,/* complain_on_overflow */ | |
669 | bfd_elf_generic_reloc, /* special_function */ | |
670 | "R_NDS32_25_PCREL_RELA",/* name */ | |
671 | FALSE, /* partial_inplace */ | |
672 | 0xffffff, /* src_mask */ | |
673 | 0xffffff, /* dst_mask */ | |
674 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
675 | |
676 | /* High 20 bits of address when lower 16 is or'd in. */ | |
fbaf61ad NC |
677 | HOWTO2 (R_NDS32_HI20_RELA, /* type */ |
678 | 12, /* rightshift */ | |
679 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
680 | 20, /* bitsize */ | |
681 | FALSE, /* pc_relative */ | |
682 | 0, /* bitpos */ | |
683 | complain_overflow_dont,/* complain_on_overflow */ | |
684 | bfd_elf_generic_reloc, /* special_function */ | |
685 | "R_NDS32_HI20_RELA", /* name */ | |
686 | FALSE, /* partial_inplace */ | |
687 | 0x000fffff, /* src_mask */ | |
688 | 0x000fffff, /* dst_mask */ | |
689 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
690 | |
691 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
692 | HOWTO2 (R_NDS32_LO12S3_RELA, /* type */ |
693 | 3, /* rightshift */ | |
694 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
695 | 9, /* bitsize */ | |
696 | FALSE, /* pc_relative */ | |
697 | 0, /* bitpos */ | |
698 | complain_overflow_dont,/* complain_on_overflow */ | |
699 | bfd_elf_generic_reloc, /* special_function */ | |
700 | "R_NDS32_LO12S3_RELA", /* name */ | |
701 | FALSE, /* partial_inplace */ | |
702 | 0x000001ff, /* src_mask */ | |
703 | 0x000001ff, /* dst_mask */ | |
704 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
705 | |
706 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
707 | HOWTO2 (R_NDS32_LO12S2_RELA, /* type */ |
708 | 2, /* rightshift */ | |
709 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
710 | 10, /* bitsize */ | |
711 | FALSE, /* pc_relative */ | |
712 | 0, /* bitpos */ | |
713 | complain_overflow_dont,/* complain_on_overflow */ | |
714 | bfd_elf_generic_reloc, /* special_function */ | |
715 | "R_NDS32_LO12S2_RELA", /* name */ | |
716 | FALSE, /* partial_inplace */ | |
717 | 0x000003ff, /* src_mask */ | |
718 | 0x000003ff, /* dst_mask */ | |
719 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
720 | |
721 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
722 | HOWTO2 (R_NDS32_LO12S1_RELA, /* type */ |
723 | 1, /* rightshift */ | |
724 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
725 | 11, /* bitsize */ | |
726 | FALSE, /* pc_relative */ | |
727 | 0, /* bitpos */ | |
728 | complain_overflow_dont,/* complain_on_overflow */ | |
729 | bfd_elf_generic_reloc, /* special_function */ | |
730 | "R_NDS32_LO12S1_RELA", /* name */ | |
731 | FALSE, /* partial_inplace */ | |
732 | 0x000007ff, /* src_mask */ | |
733 | 0x000007ff, /* dst_mask */ | |
734 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
735 | |
736 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
737 | HOWTO2 (R_NDS32_LO12S0_RELA, /* type */ |
738 | 0, /* rightshift */ | |
739 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
740 | 12, /* bitsize */ | |
741 | FALSE, /* pc_relative */ | |
742 | 0, /* bitpos */ | |
743 | complain_overflow_dont,/* complain_on_overflow */ | |
744 | bfd_elf_generic_reloc, /* special_function */ | |
745 | "R_NDS32_LO12S0_RELA", /* name */ | |
746 | FALSE, /* partial_inplace */ | |
747 | 0x00000fff, /* src_mask */ | |
748 | 0x00000fff, /* dst_mask */ | |
749 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
750 | |
751 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
752 | HOWTO2 (R_NDS32_SDA15S3_RELA, /* type */ |
753 | 3, /* rightshift */ | |
754 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
755 | 15, /* bitsize */ | |
756 | FALSE, /* pc_relative */ | |
757 | 0, /* bitpos */ | |
758 | complain_overflow_signed,/* complain_on_overflow */ | |
759 | bfd_elf_generic_reloc, /* special_function */ | |
760 | "R_NDS32_SDA15S3_RELA",/* name */ | |
761 | FALSE, /* partial_inplace */ | |
762 | 0x00007fff, /* src_mask */ | |
763 | 0x00007fff, /* dst_mask */ | |
764 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
765 | |
766 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
767 | HOWTO2 (R_NDS32_SDA15S2_RELA, /* type */ |
768 | 2, /* rightshift */ | |
769 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
770 | 15, /* bitsize */ | |
771 | FALSE, /* pc_relative */ | |
772 | 0, /* bitpos */ | |
773 | complain_overflow_signed,/* complain_on_overflow */ | |
774 | bfd_elf_generic_reloc, /* special_function */ | |
775 | "R_NDS32_SDA15S2_RELA",/* name */ | |
776 | FALSE, /* partial_inplace */ | |
777 | 0x00007fff, /* src_mask */ | |
778 | 0x00007fff, /* dst_mask */ | |
779 | FALSE), /* pcrel_offset */ | |
780 | ||
781 | HOWTO2 (R_NDS32_SDA15S1_RELA, /* type */ | |
782 | 1, /* rightshift */ | |
783 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
784 | 15, /* bitsize */ | |
785 | FALSE, /* pc_relative */ | |
786 | 0, /* bitpos */ | |
787 | complain_overflow_signed,/* complain_on_overflow */ | |
788 | bfd_elf_generic_reloc, /* special_function */ | |
789 | "R_NDS32_SDA15S1_RELA",/* name */ | |
790 | FALSE, /* partial_inplace */ | |
791 | 0x00007fff, /* src_mask */ | |
792 | 0x00007fff, /* dst_mask */ | |
793 | FALSE), /* pcrel_offset */ | |
794 | ||
795 | HOWTO2 (R_NDS32_SDA15S0_RELA, /* type */ | |
796 | 0, /* rightshift */ | |
797 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
798 | 15, /* bitsize */ | |
799 | FALSE, /* pc_relative */ | |
800 | 0, /* bitpos */ | |
801 | complain_overflow_signed,/* complain_on_overflow */ | |
802 | bfd_elf_generic_reloc, /* special_function */ | |
803 | "R_NDS32_SDA15S0_RELA",/* name */ | |
804 | FALSE, /* partial_inplace */ | |
805 | 0x00007fff, /* src_mask */ | |
806 | 0x00007fff, /* dst_mask */ | |
807 | FALSE), /* pcrel_offset */ | |
808 | ||
809 | /* GNU extension to record C++ vtable hierarchy */ | |
810 | HOWTO2 (R_NDS32_RELA_GNU_VTINHERIT,/* type */ | |
811 | 0, /* rightshift */ | |
812 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
813 | 0, /* bitsize */ | |
814 | FALSE, /* pc_relative */ | |
815 | 0, /* bitpos */ | |
816 | complain_overflow_dont,/* complain_on_overflow */ | |
817 | NULL, /* special_function */ | |
818 | "R_NDS32_RELA_GNU_VTINHERIT",/* name */ | |
819 | FALSE, /* partial_inplace */ | |
820 | 0, /* src_mask */ | |
821 | 0, /* dst_mask */ | |
822 | FALSE), /* pcrel_offset */ | |
823 | ||
824 | /* GNU extension to record C++ vtable member usage */ | |
825 | HOWTO2 (R_NDS32_RELA_GNU_VTENTRY,/* type */ | |
826 | 0, /* rightshift */ | |
827 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
828 | 0, /* bitsize */ | |
829 | FALSE, /* pc_relative */ | |
830 | 0, /* bitpos */ | |
831 | complain_overflow_dont,/* complain_on_overflow */ | |
832 | _bfd_elf_rel_vtable_reloc_fn,/* special_function */ | |
833 | "R_NDS32_RELA_GNU_VTENTRY",/* name */ | |
834 | FALSE, /* partial_inplace */ | |
835 | 0, /* src_mask */ | |
836 | 0, /* dst_mask */ | |
837 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
838 | |
839 | /* Like R_NDS32_20, but referring to the GOT table entry for | |
840 | the symbol. */ | |
fbaf61ad NC |
841 | HOWTO2 (R_NDS32_GOT20, /* type */ |
842 | 0, /* rightshift */ | |
843 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
844 | 20, /* bitsize */ | |
845 | FALSE, /* pc_relative */ | |
846 | 0, /* bitpos */ | |
847 | complain_overflow_signed,/* complain_on_overflow */ | |
848 | bfd_elf_generic_reloc, /* special_function */ | |
849 | "R_NDS32_GOT20", /* name */ | |
850 | FALSE, /* partial_inplace */ | |
851 | 0xfffff, /* src_mask */ | |
852 | 0xfffff, /* dst_mask */ | |
853 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
854 | |
855 | /* Like R_NDS32_PCREL, but referring to the procedure linkage table | |
856 | entry for the symbol. */ | |
fbaf61ad NC |
857 | HOWTO2 (R_NDS32_25_PLTREL, /* type */ |
858 | 1, /* rightshift */ | |
859 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
860 | 24, /* bitsize */ | |
861 | TRUE, /* pc_relative */ | |
862 | 0, /* bitpos */ | |
863 | complain_overflow_signed,/* complain_on_overflow */ | |
864 | bfd_elf_generic_reloc, /* special_function */ | |
865 | "R_NDS32_25_PLTREL", /* name */ | |
866 | FALSE, /* partial_inplace */ | |
867 | 0xffffff, /* src_mask */ | |
868 | 0xffffff, /* dst_mask */ | |
869 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
870 | |
871 | /* This is used only by the dynamic linker. The symbol should exist | |
872 | both in the object being run and in some shared library. The | |
873 | dynamic linker copies the data addressed by the symbol from the | |
874 | shared library into the object, because the object being | |
875 | run has to have the data at some particular address. */ | |
fbaf61ad NC |
876 | HOWTO2 (R_NDS32_COPY, /* type */ |
877 | 0, /* rightshift */ | |
878 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
879 | 32, /* bitsize */ | |
880 | FALSE, /* pc_relative */ | |
881 | 0, /* bitpos */ | |
882 | complain_overflow_bitfield,/* complain_on_overflow */ | |
883 | bfd_elf_generic_reloc, /* special_function */ | |
884 | "R_NDS32_COPY", /* name */ | |
885 | FALSE, /* partial_inplace */ | |
886 | 0xffffffff, /* src_mask */ | |
887 | 0xffffffff, /* dst_mask */ | |
888 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
889 | |
890 | /* Like R_NDS32_20, but used when setting global offset table | |
891 | entries. */ | |
fbaf61ad NC |
892 | HOWTO2 (R_NDS32_GLOB_DAT, /* type */ |
893 | 0, /* rightshift */ | |
894 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
895 | 32, /* bitsize */ | |
896 | FALSE, /* pc_relative */ | |
897 | 0, /* bitpos */ | |
898 | complain_overflow_bitfield,/* complain_on_overflow */ | |
899 | bfd_elf_generic_reloc, /* special_function */ | |
900 | "R_NDS32_GLOB_DAT", /* name */ | |
901 | FALSE, /* partial_inplace */ | |
902 | 0xffffffff, /* src_mask */ | |
903 | 0xffffffff, /* dst_mask */ | |
904 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
905 | |
906 | /* Marks a procedure linkage table entry for a symbol. */ | |
fbaf61ad NC |
907 | HOWTO2 (R_NDS32_JMP_SLOT, /* type */ |
908 | 0, /* rightshift */ | |
909 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
910 | 32, /* bitsize */ | |
911 | FALSE, /* pc_relative */ | |
912 | 0, /* bitpos */ | |
913 | complain_overflow_bitfield,/* complain_on_overflow */ | |
914 | bfd_elf_generic_reloc, /* special_function */ | |
915 | "R_NDS32_JMP_SLOT", /* name */ | |
916 | FALSE, /* partial_inplace */ | |
917 | 0xffffffff, /* src_mask */ | |
918 | 0xffffffff, /* dst_mask */ | |
919 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
920 | |
921 | /* Used only by the dynamic linker. When the object is run, this | |
922 | longword is set to the load address of the object, plus the | |
923 | addend. */ | |
fbaf61ad NC |
924 | HOWTO2 (R_NDS32_RELATIVE, /* type */ |
925 | 0, /* rightshift */ | |
926 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
927 | 32, /* bitsize */ | |
928 | FALSE, /* pc_relative */ | |
929 | 0, /* bitpos */ | |
930 | complain_overflow_bitfield,/* complain_on_overflow */ | |
931 | bfd_elf_generic_reloc, /* special_function */ | |
932 | "R_NDS32_RELATIVE", /* name */ | |
933 | FALSE, /* partial_inplace */ | |
934 | 0xffffffff, /* src_mask */ | |
935 | 0xffffffff, /* dst_mask */ | |
936 | FALSE), /* pcrel_offset */ | |
937 | ||
938 | HOWTO2 (R_NDS32_GOTOFF, /* type */ | |
939 | 0, /* rightshift */ | |
940 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
941 | 20, /* bitsize */ | |
942 | FALSE, /* pc_relative */ | |
943 | 0, /* bitpos */ | |
944 | complain_overflow_signed,/* complain_on_overflow */ | |
945 | bfd_elf_generic_reloc, /* special_function */ | |
946 | "R_NDS32_GOTOFF", /* name */ | |
947 | FALSE, /* partial_inplace */ | |
948 | 0xfffff, /* src_mask */ | |
949 | 0xfffff, /* dst_mask */ | |
950 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
951 | |
952 | /* An PC Relative 20-bit relocation used when setting PIC offset | |
953 | table register. */ | |
fbaf61ad NC |
954 | HOWTO2 (R_NDS32_GOTPC20, /* type */ |
955 | 0, /* rightshift */ | |
956 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
957 | 20, /* bitsize */ | |
958 | TRUE, /* pc_relative */ | |
959 | 0, /* bitpos */ | |
960 | complain_overflow_signed,/* complain_on_overflow */ | |
961 | bfd_elf_generic_reloc, /* special_function */ | |
962 | "R_NDS32_GOTPC20", /* name */ | |
963 | FALSE, /* partial_inplace */ | |
964 | 0xfffff, /* src_mask */ | |
965 | 0xfffff, /* dst_mask */ | |
966 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
967 | |
968 | /* Like R_NDS32_HI20, but referring to the GOT table entry for | |
969 | the symbol. */ | |
fbaf61ad NC |
970 | HOWTO2 (R_NDS32_GOT_HI20, /* type */ |
971 | 12, /* rightshift */ | |
972 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
973 | 20, /* bitsize */ | |
974 | FALSE, /* pc_relative */ | |
975 | 0, /* bitpos */ | |
976 | complain_overflow_dont,/* complain_on_overflow */ | |
977 | bfd_elf_generic_reloc, /* special_function */ | |
978 | "R_NDS32_GOT_HI20", /* name */ | |
979 | FALSE, /* partial_inplace */ | |
980 | 0x000fffff, /* src_mask */ | |
981 | 0x000fffff, /* dst_mask */ | |
982 | FALSE), /* pcrel_offset */ | |
983 | HOWTO2 (R_NDS32_GOT_LO12, /* type */ | |
984 | 0, /* rightshift */ | |
985 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
986 | 12, /* bitsize */ | |
987 | FALSE, /* pc_relative */ | |
988 | 0, /* bitpos */ | |
989 | complain_overflow_dont,/* complain_on_overflow */ | |
990 | bfd_elf_generic_reloc, /* special_function */ | |
991 | "R_NDS32_GOT_LO12", /* name */ | |
992 | FALSE, /* partial_inplace */ | |
993 | 0x00000fff, /* src_mask */ | |
994 | 0x00000fff, /* dst_mask */ | |
995 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
996 | |
997 | /* An PC Relative relocation used when setting PIC offset table register. | |
998 | Like R_NDS32_HI20, but referring to the GOT table entry for | |
999 | the symbol. */ | |
fbaf61ad NC |
1000 | HOWTO2 (R_NDS32_GOTPC_HI20, /* type */ |
1001 | 12, /* rightshift */ | |
1002 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1003 | 20, /* bitsize */ | |
1004 | FALSE, /* pc_relative */ | |
1005 | 0, /* bitpos */ | |
1006 | complain_overflow_dont,/* complain_on_overflow */ | |
1007 | bfd_elf_generic_reloc, /* special_function */ | |
1008 | "R_NDS32_GOTPC_HI20", /* name */ | |
1009 | FALSE, /* partial_inplace */ | |
1010 | 0x000fffff, /* src_mask */ | |
1011 | 0x000fffff, /* dst_mask */ | |
1012 | TRUE), /* pcrel_offset */ | |
1013 | HOWTO2 (R_NDS32_GOTPC_LO12, /* type */ | |
1014 | 0, /* rightshift */ | |
1015 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1016 | 12, /* bitsize */ | |
1017 | FALSE, /* pc_relative */ | |
1018 | 0, /* bitpos */ | |
1019 | complain_overflow_dont,/* complain_on_overflow */ | |
1020 | bfd_elf_generic_reloc, /* special_function */ | |
1021 | "R_NDS32_GOTPC_LO12", /* name */ | |
1022 | FALSE, /* partial_inplace */ | |
1023 | 0x00000fff, /* src_mask */ | |
1024 | 0x00000fff, /* dst_mask */ | |
1025 | TRUE), /* pcrel_offset */ | |
1026 | ||
1027 | HOWTO2 (R_NDS32_GOTOFF_HI20, /* type */ | |
1028 | 12, /* rightshift */ | |
1029 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1030 | 20, /* bitsize */ | |
1031 | FALSE, /* pc_relative */ | |
1032 | 0, /* bitpos */ | |
1033 | complain_overflow_dont,/* complain_on_overflow */ | |
1034 | bfd_elf_generic_reloc, /* special_function */ | |
1035 | "R_NDS32_GOTOFF_HI20", /* name */ | |
1036 | FALSE, /* partial_inplace */ | |
1037 | 0x000fffff, /* src_mask */ | |
1038 | 0x000fffff, /* dst_mask */ | |
1039 | FALSE), /* pcrel_offset */ | |
1040 | HOWTO2 (R_NDS32_GOTOFF_LO12, /* type */ | |
1041 | 0, /* rightshift */ | |
1042 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1043 | 12, /* bitsize */ | |
1044 | FALSE, /* pc_relative */ | |
1045 | 0, /* bitpos */ | |
1046 | complain_overflow_dont,/* complain_on_overflow */ | |
1047 | bfd_elf_generic_reloc, /* special_function */ | |
1048 | "R_NDS32_GOTOFF_LO12", /* name */ | |
1049 | FALSE, /* partial_inplace */ | |
1050 | 0x00000fff, /* src_mask */ | |
1051 | 0x00000fff, /* dst_mask */ | |
1052 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1053 | |
1054 | /* Alignment hint for relaxable instruction. This is used with | |
1055 | R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2 | |
1056 | in order to make next label aligned on word boundary. */ | |
fbaf61ad NC |
1057 | HOWTO2 (R_NDS32_INSN16, /* type */ |
1058 | 0, /* rightshift */ | |
1059 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1060 | 32, /* bitsize */ | |
1061 | FALSE, /* pc_relative */ | |
1062 | 0, /* bitpos */ | |
1063 | complain_overflow_dont,/* complain_on_overflow */ | |
1064 | nds32_elf_ignore_reloc,/* special_function */ | |
1065 | "R_NDS32_INSN16", /* name */ | |
1066 | FALSE, /* partial_inplace */ | |
1067 | 0x00000fff, /* src_mask */ | |
1068 | 0x00000fff, /* dst_mask */ | |
1069 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1070 | |
1071 | /* Alignment hint for label. */ | |
fbaf61ad NC |
1072 | HOWTO2 (R_NDS32_LABEL, /* type */ |
1073 | 0, /* rightshift */ | |
1074 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1075 | 32, /* bitsize */ | |
1076 | FALSE, /* pc_relative */ | |
1077 | 0, /* bitpos */ | |
1078 | complain_overflow_dont,/* complain_on_overflow */ | |
1079 | nds32_elf_ignore_reloc,/* special_function */ | |
1080 | "R_NDS32_LABEL", /* name */ | |
1081 | FALSE, /* partial_inplace */ | |
1082 | 0xffffffff, /* src_mask */ | |
1083 | 0xffffffff, /* dst_mask */ | |
1084 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1085 | |
1086 | /* Relax hint for unconditional call sequence */ | |
fbaf61ad NC |
1087 | HOWTO2 (R_NDS32_LONGCALL1, /* type */ |
1088 | 0, /* rightshift */ | |
1089 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1090 | 32, /* bitsize */ | |
1091 | FALSE, /* pc_relative */ | |
1092 | 0, /* bitpos */ | |
1093 | complain_overflow_dont,/* complain_on_overflow */ | |
1094 | nds32_elf_ignore_reloc,/* special_function */ | |
1095 | "R_NDS32_LONGCALL1", /* name */ | |
1096 | FALSE, /* partial_inplace */ | |
1097 | 0xffffffff, /* src_mask */ | |
1098 | 0xffffffff, /* dst_mask */ | |
1099 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1100 | |
1101 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1102 | HOWTO2 (R_NDS32_LONGCALL2, /* type */ |
1103 | 0, /* rightshift */ | |
1104 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1105 | 32, /* bitsize */ | |
1106 | FALSE, /* pc_relative */ | |
1107 | 0, /* bitpos */ | |
1108 | complain_overflow_dont,/* complain_on_overflow */ | |
1109 | nds32_elf_ignore_reloc,/* special_function */ | |
1110 | "R_NDS32_LONGCALL2", /* name */ | |
1111 | FALSE, /* partial_inplace */ | |
1112 | 0xffffffff, /* src_mask */ | |
1113 | 0xffffffff, /* dst_mask */ | |
1114 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1115 | |
1116 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1117 | HOWTO2 (R_NDS32_LONGCALL3, /* type */ |
1118 | 0, /* rightshift */ | |
1119 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1120 | 32, /* bitsize */ | |
1121 | FALSE, /* pc_relative */ | |
1122 | 0, /* bitpos */ | |
1123 | complain_overflow_dont,/* complain_on_overflow */ | |
1124 | nds32_elf_ignore_reloc,/* special_function */ | |
1125 | "R_NDS32_LONGCALL3", /* name */ | |
1126 | FALSE, /* partial_inplace */ | |
1127 | 0xffffffff, /* src_mask */ | |
1128 | 0xffffffff, /* dst_mask */ | |
1129 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1130 | |
1131 | /* Relax hint for unconditional branch sequence. */ | |
fbaf61ad NC |
1132 | HOWTO2 (R_NDS32_LONGJUMP1, /* type */ |
1133 | 0, /* rightshift */ | |
1134 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1135 | 32, /* bitsize */ | |
1136 | FALSE, /* pc_relative */ | |
1137 | 0, /* bitpos */ | |
1138 | complain_overflow_dont,/* complain_on_overflow */ | |
1139 | nds32_elf_ignore_reloc,/* special_function */ | |
1140 | "R_NDS32_LONGJUMP1", /* name */ | |
1141 | FALSE, /* partial_inplace */ | |
1142 | 0xffffffff, /* src_mask */ | |
1143 | 0xffffffff, /* dst_mask */ | |
1144 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1145 | |
1146 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1147 | HOWTO2 (R_NDS32_LONGJUMP2, /* type */ |
1148 | 0, /* rightshift */ | |
1149 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1150 | 32, /* bitsize */ | |
1151 | FALSE, /* pc_relative */ | |
1152 | 0, /* bitpos */ | |
1153 | complain_overflow_dont,/* complain_on_overflow */ | |
1154 | nds32_elf_ignore_reloc,/* special_function */ | |
1155 | "R_NDS32_LONGJUMP2", /* name */ | |
1156 | FALSE, /* partial_inplace */ | |
1157 | 0xffffffff, /* src_mask */ | |
1158 | 0xffffffff, /* dst_mask */ | |
1159 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1160 | |
1161 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1162 | HOWTO2 (R_NDS32_LONGJUMP3, /* type */ |
1163 | 0, /* rightshift */ | |
1164 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1165 | 32, /* bitsize */ | |
1166 | FALSE, /* pc_relative */ | |
1167 | 0, /* bitpos */ | |
1168 | complain_overflow_dont,/* complain_on_overflow */ | |
1169 | nds32_elf_ignore_reloc,/* special_function */ | |
1170 | "R_NDS32_LONGJUMP3", /* name */ | |
1171 | FALSE, /* partial_inplace */ | |
1172 | 0xffffffff, /* src_mask */ | |
1173 | 0xffffffff, /* dst_mask */ | |
1174 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1175 | |
1176 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1177 | HOWTO2 (R_NDS32_LOADSTORE, /* type */ |
1178 | 0, /* rightshift */ | |
1179 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1180 | 32, /* bitsize */ | |
1181 | FALSE, /* pc_relative */ | |
1182 | 0, /* bitpos */ | |
1183 | complain_overflow_dont,/* complain_on_overflow */ | |
1184 | nds32_elf_ignore_reloc,/* special_function */ | |
1185 | "R_NDS32_LOADSTORE", /* name */ | |
1186 | FALSE, /* partial_inplace */ | |
1187 | 0xffffffff, /* src_mask */ | |
1188 | 0xffffffff, /* dst_mask */ | |
1189 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1190 | |
1191 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1192 | HOWTO2 (R_NDS32_9_FIXED_RELA, /* type */ |
1193 | 0, /* rightshift */ | |
1194 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1195 | 16, /* bitsize */ | |
1196 | FALSE, /* pc_relative */ | |
1197 | 0, /* bitpos */ | |
1198 | complain_overflow_dont,/* complain_on_overflow */ | |
1199 | nds32_elf_ignore_reloc,/* special_function */ | |
1200 | "R_NDS32_9_FIXED_RELA",/* name */ | |
1201 | FALSE, /* partial_inplace */ | |
1202 | 0x000000ff, /* src_mask */ | |
1203 | 0x000000ff, /* dst_mask */ | |
1204 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1205 | |
1206 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1207 | HOWTO2 (R_NDS32_15_FIXED_RELA,/* type */ |
1208 | 0, /* rightshift */ | |
1209 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1210 | 32, /* bitsize */ | |
1211 | FALSE, /* pc_relative */ | |
1212 | 0, /* bitpos */ | |
1213 | complain_overflow_dont,/* complain_on_overflow */ | |
1214 | nds32_elf_ignore_reloc,/* special_function */ | |
1215 | "R_NDS32_15_FIXED_RELA",/* name */ | |
1216 | FALSE, /* partial_inplace */ | |
1217 | 0x00003fff, /* src_mask */ | |
1218 | 0x00003fff, /* dst_mask */ | |
1219 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1220 | |
1221 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1222 | HOWTO2 (R_NDS32_17_FIXED_RELA,/* type */ |
1223 | 0, /* rightshift */ | |
1224 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1225 | 32, /* bitsize */ | |
1226 | FALSE, /* pc_relative */ | |
1227 | 0, /* bitpos */ | |
1228 | complain_overflow_dont,/* complain_on_overflow */ | |
1229 | nds32_elf_ignore_reloc,/* special_function */ | |
1230 | "R_NDS32_17_FIXED_RELA",/* name */ | |
1231 | FALSE, /* partial_inplace */ | |
1232 | 0x0000ffff, /* src_mask */ | |
1233 | 0x0000ffff, /* dst_mask */ | |
1234 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1235 | |
1236 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1237 | HOWTO2 (R_NDS32_25_FIXED_RELA,/* type */ |
1238 | 0, /* rightshift */ | |
1239 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1240 | 32, /* bitsize */ | |
1241 | FALSE, /* pc_relative */ | |
1242 | 0, /* bitpos */ | |
1243 | complain_overflow_dont,/* complain_on_overflow */ | |
1244 | nds32_elf_ignore_reloc,/* special_function */ | |
1245 | "R_NDS32_25_FIXED_RELA",/* name */ | |
1246 | FALSE, /* partial_inplace */ | |
1247 | 0x00ffffff, /* src_mask */ | |
1248 | 0x00ffffff, /* dst_mask */ | |
1249 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1250 | |
1251 | /* High 20 bits of PLT symbol offset relative to PC. */ | |
fbaf61ad NC |
1252 | HOWTO2 (R_NDS32_PLTREL_HI20, /* type */ |
1253 | 12, /* rightshift */ | |
1254 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1255 | 20, /* bitsize */ | |
1256 | FALSE, /* pc_relative */ | |
1257 | 0, /* bitpos */ | |
1258 | complain_overflow_dont,/* complain_on_overflow */ | |
1259 | bfd_elf_generic_reloc, /* special_function */ | |
1260 | "R_NDS32_PLTREL_HI20", /* name */ | |
1261 | FALSE, /* partial_inplace */ | |
1262 | 0x000fffff, /* src_mask */ | |
1263 | 0x000fffff, /* dst_mask */ | |
1264 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1265 | |
1266 | /* Low 12 bits of PLT symbol offset relative to PC. */ | |
fbaf61ad NC |
1267 | HOWTO2 (R_NDS32_PLTREL_LO12, /* type */ |
1268 | 0, /* rightshift */ | |
1269 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1270 | 12, /* bitsize */ | |
1271 | FALSE, /* pc_relative */ | |
1272 | 0, /* bitpos */ | |
1273 | complain_overflow_dont,/* complain_on_overflow */ | |
1274 | bfd_elf_generic_reloc, /* special_function */ | |
1275 | "R_NDS32_PLTREL_LO12", /* name */ | |
1276 | FALSE, /* partial_inplace */ | |
1277 | 0x00000fff, /* src_mask */ | |
1278 | 0x00000fff, /* dst_mask */ | |
1279 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1280 | |
1281 | /* High 20 bits of PLT symbol offset relative to GOT (GP). */ | |
fbaf61ad NC |
1282 | HOWTO2 (R_NDS32_PLT_GOTREL_HI20, /* type */ |
1283 | 12, /* rightshift */ | |
1284 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1285 | 20, /* bitsize */ | |
1286 | FALSE, /* pc_relative */ | |
1287 | 0, /* bitpos */ | |
1288 | complain_overflow_dont,/* complain_on_overflow */ | |
1289 | bfd_elf_generic_reloc, /* special_function */ | |
1290 | "R_NDS32_PLT_GOTREL_HI20",/* name */ | |
1291 | FALSE, /* partial_inplace */ | |
1292 | 0x000fffff, /* src_mask */ | |
1293 | 0x000fffff, /* dst_mask */ | |
1294 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1295 | |
1296 | /* Low 12 bits of PLT symbol offset relative to GOT (GP). */ | |
fbaf61ad NC |
1297 | HOWTO2 (R_NDS32_PLT_GOTREL_LO12,/* type */ |
1298 | 0, /* rightshift */ | |
1299 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1300 | 12, /* bitsize */ | |
1301 | FALSE, /* pc_relative */ | |
1302 | 0, /* bitpos */ | |
1303 | complain_overflow_dont,/* complain_on_overflow */ | |
1304 | bfd_elf_generic_reloc, /* special_function */ | |
1305 | "R_NDS32_PLT_GOTREL_LO12",/* name */ | |
1306 | FALSE, /* partial_inplace */ | |
1307 | 0x00000fff, /* src_mask */ | |
1308 | 0x00000fff, /* dst_mask */ | |
1309 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1310 | |
1311 | /* Small data area 12 bits offset. */ | |
fbaf61ad NC |
1312 | HOWTO2 (R_NDS32_SDA12S2_DP_RELA,/* type */ |
1313 | 2, /* rightshift */ | |
1314 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1315 | 12, /* bitsize */ | |
1316 | FALSE, /* pc_relative */ | |
1317 | 0, /* bitpos */ | |
1318 | complain_overflow_signed,/* complain_on_overflow */ | |
1319 | bfd_elf_generic_reloc, /* special_function */ | |
1320 | "R_NDS32_SDA12S2_DP_RELA",/* name */ | |
1321 | FALSE, /* partial_inplace */ | |
1322 | 0x00000fff, /* src_mask */ | |
1323 | 0x00000fff, /* dst_mask */ | |
1324 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1325 | |
1326 | /* Small data area 12 bits offset. */ | |
fbaf61ad NC |
1327 | HOWTO2 (R_NDS32_SDA12S2_SP_RELA,/* type */ |
1328 | 2, /* rightshift */ | |
1329 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1330 | 12, /* bitsize */ | |
1331 | FALSE, /* pc_relative */ | |
1332 | 0, /* bitpos */ | |
1333 | complain_overflow_signed,/* complain_on_overflow */ | |
1334 | bfd_elf_generic_reloc, /* special_function */ | |
1335 | "R_NDS32_SDA12S2_SP_RELA",/* name */ | |
1336 | FALSE, /* partial_inplace */ | |
1337 | 0x00000fff, /* src_mask */ | |
1338 | 0x00000fff, /* dst_mask */ | |
1339 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1340 | /* Lower 12 bits of address. */ |
1341 | ||
fbaf61ad NC |
1342 | HOWTO2 (R_NDS32_LO12S2_DP_RELA, /* type */ |
1343 | 2, /* rightshift */ | |
1344 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1345 | 10, /* bitsize */ | |
1346 | FALSE, /* pc_relative */ | |
1347 | 0, /* bitpos */ | |
1348 | complain_overflow_dont,/* complain_on_overflow */ | |
1349 | bfd_elf_generic_reloc, /* special_function */ | |
1350 | "R_NDS32_LO12S2_DP_RELA",/* name */ | |
1351 | FALSE, /* partial_inplace */ | |
1352 | 0x000003ff, /* src_mask */ | |
1353 | 0x000003ff, /* dst_mask */ | |
1354 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1355 | |
1356 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
1357 | HOWTO2 (R_NDS32_LO12S2_SP_RELA,/* type */ |
1358 | 2, /* rightshift */ | |
1359 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1360 | 10, /* bitsize */ | |
1361 | FALSE, /* pc_relative */ | |
1362 | 0, /* bitpos */ | |
1363 | complain_overflow_dont,/* complain_on_overflow */ | |
1364 | bfd_elf_generic_reloc, /* special_function */ | |
1365 | "R_NDS32_LO12S2_SP_RELA",/* name */ | |
1366 | FALSE, /* partial_inplace */ | |
1367 | 0x000003ff, /* src_mask */ | |
1368 | 0x000003ff, /* dst_mask */ | |
1369 | FALSE), /* pcrel_offset */ | |
35c08157 | 1370 | /* Lower 12 bits of address. Special identity for or case. */ |
fbaf61ad NC |
1371 | HOWTO2 (R_NDS32_LO12S0_ORI_RELA,/* type */ |
1372 | 0, /* rightshift */ | |
1373 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1374 | 12, /* bitsize */ | |
1375 | FALSE, /* pc_relative */ | |
1376 | 0, /* bitpos */ | |
1377 | complain_overflow_dont,/* complain_on_overflow */ | |
1378 | bfd_elf_generic_reloc, /* special_function */ | |
1379 | "R_NDS32_LO12S0_ORI_RELA",/* name */ | |
1380 | FALSE, /* partial_inplace */ | |
1381 | 0x00000fff, /* src_mask */ | |
1382 | 0x00000fff, /* dst_mask */ | |
1383 | FALSE), /* pcrel_offset */ | |
35c08157 | 1384 | /* Small data area 19 bits offset. */ |
fbaf61ad NC |
1385 | HOWTO2 (R_NDS32_SDA16S3_RELA, /* type */ |
1386 | 3, /* rightshift */ | |
1387 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1388 | 16, /* bitsize */ | |
1389 | FALSE, /* pc_relative */ | |
1390 | 0, /* bitpos */ | |
1391 | complain_overflow_signed,/* complain_on_overflow */ | |
1392 | bfd_elf_generic_reloc, /* special_function */ | |
1393 | "R_NDS32_SDA16S3_RELA",/* name */ | |
1394 | FALSE, /* partial_inplace */ | |
1395 | 0x0000ffff, /* src_mask */ | |
1396 | 0x0000ffff, /* dst_mask */ | |
1397 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1398 | |
1399 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
1400 | HOWTO2 (R_NDS32_SDA17S2_RELA, /* type */ |
1401 | 2, /* rightshift */ | |
1402 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1403 | 17, /* bitsize */ | |
1404 | FALSE, /* pc_relative */ | |
1405 | 0, /* bitpos */ | |
1406 | complain_overflow_signed,/* complain_on_overflow */ | |
1407 | bfd_elf_generic_reloc, /* special_function */ | |
1408 | "R_NDS32_SDA17S2_RELA",/* name */ | |
1409 | FALSE, /* partial_inplace */ | |
1410 | 0x0001ffff, /* src_mask */ | |
1411 | 0x0001ffff, /* dst_mask */ | |
1412 | FALSE), /* pcrel_offset */ | |
1413 | ||
1414 | HOWTO2 (R_NDS32_SDA18S1_RELA, /* type */ | |
1415 | 1, /* rightshift */ | |
1416 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1417 | 18, /* bitsize */ | |
1418 | FALSE, /* pc_relative */ | |
1419 | 0, /* bitpos */ | |
1420 | complain_overflow_signed,/* complain_on_overflow */ | |
1421 | bfd_elf_generic_reloc, /* special_function */ | |
1422 | "R_NDS32_SDA18S1_RELA",/* name */ | |
1423 | FALSE, /* partial_inplace */ | |
1424 | 0x0003ffff, /* src_mask */ | |
1425 | 0x0003ffff, /* dst_mask */ | |
1426 | FALSE), /* pcrel_offset */ | |
1427 | ||
1428 | HOWTO2 (R_NDS32_SDA19S0_RELA, /* type */ | |
1429 | 0, /* rightshift */ | |
1430 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1431 | 19, /* bitsize */ | |
1432 | FALSE, /* pc_relative */ | |
1433 | 0, /* bitpos */ | |
1434 | complain_overflow_signed,/* complain_on_overflow */ | |
1435 | bfd_elf_generic_reloc, /* special_function */ | |
1436 | "R_NDS32_SDA19S0_RELA",/* name */ | |
1437 | FALSE, /* partial_inplace */ | |
1438 | 0x0007ffff, /* src_mask */ | |
1439 | 0x0007ffff, /* dst_mask */ | |
1440 | FALSE), /* pcrel_offset */ | |
1441 | HOWTO2 (R_NDS32_DWARF2_OP1_RELA,/* type */ | |
1442 | 0, /* rightshift */ | |
1443 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1444 | 8, /* bitsize */ | |
1445 | FALSE, /* pc_relative */ | |
1446 | 0, /* bitpos */ | |
1447 | complain_overflow_dont,/* complain_on_overflow */ | |
1448 | nds32_elf_ignore_reloc,/* special_function */ | |
1449 | "R_NDS32_DWARF2_OP1_RELA",/* name */ | |
1450 | FALSE, /* partial_inplace */ | |
1451 | 0xff, /* src_mask */ | |
1452 | 0xff, /* dst_mask */ | |
1453 | FALSE), /* pcrel_offset */ | |
1454 | HOWTO2 (R_NDS32_DWARF2_OP2_RELA,/* type */ | |
1455 | 0, /* rightshift */ | |
1456 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1457 | 16, /* bitsize */ | |
1458 | FALSE, /* pc_relative */ | |
1459 | 0, /* bitpos */ | |
1460 | complain_overflow_dont,/* complain_on_overflow */ | |
1461 | nds32_elf_ignore_reloc,/* special_function */ | |
1462 | "R_NDS32_DWARF2_OP2_RELA",/* name */ | |
1463 | FALSE, /* partial_inplace */ | |
1464 | 0xffff, /* src_mask */ | |
1465 | 0xffff, /* dst_mask */ | |
1466 | FALSE), /* pcrel_offset */ | |
1467 | HOWTO2 (R_NDS32_DWARF2_LEB_RELA,/* type */ | |
1468 | 0, /* rightshift */ | |
1469 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1470 | 32, /* bitsize */ | |
1471 | FALSE, /* pc_relative */ | |
1472 | 0, /* bitpos */ | |
1473 | complain_overflow_dont,/* complain_on_overflow */ | |
1474 | nds32_elf_ignore_reloc,/* special_function */ | |
1475 | "R_NDS32_DWARF2_LEB_RELA",/* name */ | |
1476 | FALSE, /* partial_inplace */ | |
1477 | 0xffffffff, /* src_mask */ | |
1478 | 0xffffffff, /* dst_mask */ | |
1479 | FALSE), /* pcrel_offset */ | |
1480 | HOWTO2 (R_NDS32_UPDATE_TA_RELA,/* type */ | |
1481 | 0, /* rightshift */ | |
1482 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1483 | 16, /* bitsize */ | |
1484 | FALSE, /* pc_relative */ | |
1485 | 0, /* bitpos */ | |
1486 | complain_overflow_dont,/* complain_on_overflow */ | |
1487 | nds32_elf_ignore_reloc,/* special_function */ | |
1488 | "R_NDS32_UPDATE_TA_RELA",/* name */ | |
1489 | FALSE, /* partial_inplace */ | |
1490 | 0xffff, /* src_mask */ | |
1491 | 0xffff, /* dst_mask */ | |
1492 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1493 | /* Like R_NDS32_PCREL, but referring to the procedure linkage table |
1494 | entry for the symbol. */ | |
fbaf61ad NC |
1495 | HOWTO2 (R_NDS32_9_PLTREL, /* type */ |
1496 | 1, /* rightshift */ | |
1497 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1498 | 8, /* bitsize */ | |
1499 | TRUE, /* pc_relative */ | |
1500 | 0, /* bitpos */ | |
1501 | complain_overflow_signed,/* complain_on_overflow */ | |
1502 | bfd_elf_generic_reloc, /* special_function */ | |
1503 | "R_NDS32_9_PLTREL", /* name */ | |
1504 | FALSE, /* partial_inplace */ | |
1505 | 0xff, /* src_mask */ | |
1506 | 0xff, /* dst_mask */ | |
1507 | TRUE), /* pcrel_offset */ | |
35c08157 | 1508 | /* Low 20 bits of PLT symbol offset relative to GOT (GP). */ |
fbaf61ad NC |
1509 | HOWTO2 (R_NDS32_PLT_GOTREL_LO20,/* type */ |
1510 | 0, /* rightshift */ | |
1511 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1512 | 20, /* bitsize */ | |
1513 | FALSE, /* pc_relative */ | |
1514 | 0, /* bitpos */ | |
1515 | complain_overflow_dont,/* complain_on_overflow */ | |
1516 | bfd_elf_generic_reloc, /* special_function */ | |
1517 | "R_NDS32_PLT_GOTREL_LO20",/* name */ | |
1518 | FALSE, /* partial_inplace */ | |
1519 | 0x000fffff, /* src_mask */ | |
1520 | 0x000fffff, /* dst_mask */ | |
1521 | FALSE), /* pcrel_offset */ | |
1522 | /* low 15 bits of PLT symbol offset relative to GOT (GP) */ | |
1523 | HOWTO2 (R_NDS32_PLT_GOTREL_LO15,/* type */ | |
1524 | 0, /* rightshift */ | |
1525 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1526 | 15, /* bitsize */ | |
1527 | FALSE, /* pc_relative */ | |
1528 | 0, /* bitpos */ | |
1529 | complain_overflow_dont,/* complain_on_overflow */ | |
1530 | bfd_elf_generic_reloc, /* special_function */ | |
1531 | "R_NDS32_PLT_GOTREL_LO15",/* name */ | |
1532 | FALSE, /* partial_inplace */ | |
1533 | 0x00007fff, /* src_mask */ | |
1534 | 0x00007fff, /* dst_mask */ | |
1535 | FALSE), /* pcrel_offset */ | |
35c08157 | 1536 | /* Low 19 bits of PLT symbol offset relative to GOT (GP). */ |
fbaf61ad NC |
1537 | HOWTO2 (R_NDS32_PLT_GOTREL_LO19,/* type */ |
1538 | 0, /* rightshift */ | |
1539 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1540 | 19, /* bitsize */ | |
1541 | FALSE, /* pc_relative */ | |
1542 | 0, /* bitpos */ | |
1543 | complain_overflow_dont,/* complain_on_overflow */ | |
1544 | bfd_elf_generic_reloc, /* special_function */ | |
1545 | "R_NDS32_PLT_GOTREL_LO19",/* name */ | |
1546 | FALSE, /* partial_inplace */ | |
1547 | 0x0007ffff, /* src_mask */ | |
1548 | 0x0007ffff, /* dst_mask */ | |
1549 | FALSE), /* pcrel_offset */ | |
1550 | HOWTO2 (R_NDS32_GOT_LO15, /* type */ | |
1551 | 0, /* rightshift */ | |
1552 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1553 | 15, /* bitsize */ | |
1554 | FALSE, /* pc_relative */ | |
1555 | 0, /* bitpos */ | |
1556 | complain_overflow_dont,/* complain_on_overflow */ | |
1557 | bfd_elf_generic_reloc, /* special_function */ | |
1558 | "R_NDS32_GOT_LO15", /* name */ | |
1559 | FALSE, /* partial_inplace */ | |
1560 | 0x00007fff, /* src_mask */ | |
1561 | 0x00007fff, /* dst_mask */ | |
1562 | FALSE), /* pcrel_offset */ | |
1563 | HOWTO2 (R_NDS32_GOT_LO19, /* type */ | |
1564 | 0, /* rightshift */ | |
1565 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1566 | 19, /* bitsize */ | |
1567 | FALSE, /* pc_relative */ | |
1568 | 0, /* bitpos */ | |
1569 | complain_overflow_dont,/* complain_on_overflow */ | |
1570 | bfd_elf_generic_reloc, /* special_function */ | |
1571 | "R_NDS32_GOT_LO19", /* name */ | |
1572 | FALSE, /* partial_inplace */ | |
1573 | 0x0007ffff, /* src_mask */ | |
1574 | 0x0007ffff, /* dst_mask */ | |
1575 | FALSE), /* pcrel_offset */ | |
1576 | HOWTO2 (R_NDS32_GOTOFF_LO15, /* type */ | |
1577 | 0, /* rightshift */ | |
1578 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1579 | 15, /* bitsize */ | |
1580 | FALSE, /* pc_relative */ | |
1581 | 0, /* bitpos */ | |
1582 | complain_overflow_dont,/* complain_on_overflow */ | |
1583 | bfd_elf_generic_reloc, /* special_function */ | |
1584 | "R_NDS32_GOTOFF_LO15", /* name */ | |
1585 | FALSE, /* partial_inplace */ | |
1586 | 0x00007fff, /* src_mask */ | |
1587 | 0x00007fff, /* dst_mask */ | |
1588 | FALSE), /* pcrel_offset */ | |
1589 | HOWTO2 (R_NDS32_GOTOFF_LO19, /* type */ | |
1590 | 0, /* rightshift */ | |
1591 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1592 | 19, /* bitsize */ | |
1593 | FALSE, /* pc_relative */ | |
1594 | 0, /* bitpos */ | |
1595 | complain_overflow_dont,/* complain_on_overflow */ | |
1596 | bfd_elf_generic_reloc, /* special_function */ | |
1597 | "R_NDS32_GOTOFF_LO19", /* name */ | |
1598 | FALSE, /* partial_inplace */ | |
1599 | 0x0007ffff, /* src_mask */ | |
1600 | 0x0007ffff, /* dst_mask */ | |
1601 | FALSE), /* pcrel_offset */ | |
35c08157 | 1602 | /* GOT 15 bits offset. */ |
fbaf61ad NC |
1603 | HOWTO2 (R_NDS32_GOT15S2_RELA, /* type */ |
1604 | 2, /* rightshift */ | |
1605 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1606 | 15, /* bitsize */ | |
1607 | FALSE, /* pc_relative */ | |
1608 | 0, /* bitpos */ | |
1609 | complain_overflow_signed,/* complain_on_overflow */ | |
1610 | bfd_elf_generic_reloc, /* special_function */ | |
1611 | "R_NDS32_GOT15S2_RELA",/* name */ | |
1612 | FALSE, /* partial_inplace */ | |
1613 | 0x00007fff, /* src_mask */ | |
1614 | 0x00007fff, /* dst_mask */ | |
1615 | FALSE), /* pcrel_offset */ | |
35c08157 | 1616 | /* GOT 17 bits offset. */ |
fbaf61ad NC |
1617 | HOWTO2 (R_NDS32_GOT17S2_RELA, /* type */ |
1618 | 2, /* rightshift */ | |
1619 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1620 | 17, /* bitsize */ | |
1621 | FALSE, /* pc_relative */ | |
1622 | 0, /* bitpos */ | |
1623 | complain_overflow_signed,/* complain_on_overflow */ | |
1624 | bfd_elf_generic_reloc, /* special_function */ | |
1625 | "R_NDS32_GOT17S2_RELA",/* name */ | |
1626 | FALSE, /* partial_inplace */ | |
1627 | 0x0001ffff, /* src_mask */ | |
1628 | 0x0001ffff, /* dst_mask */ | |
1629 | FALSE), /* pcrel_offset */ | |
35c08157 | 1630 | /* A 5 bit address. */ |
fbaf61ad NC |
1631 | HOWTO2 (R_NDS32_5_RELA, /* type */ |
1632 | 0, /* rightshift */ | |
1633 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1634 | 5, /* bitsize */ | |
1635 | FALSE, /* pc_relative */ | |
1636 | 0, /* bitpos */ | |
1637 | complain_overflow_signed,/* complain_on_overflow */ | |
1638 | bfd_elf_generic_reloc, /* special_function */ | |
1639 | "R_NDS32_5_RELA", /* name */ | |
1640 | FALSE, /* partial_inplace */ | |
1641 | 0x1f, /* src_mask */ | |
1642 | 0x1f, /* dst_mask */ | |
1643 | FALSE), /* pcrel_offset */ | |
1644 | HOWTO2 (R_NDS32_10_UPCREL_RELA,/* type */ | |
1645 | 1, /* rightshift */ | |
1646 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1647 | 9, /* bitsize */ | |
1648 | TRUE, /* pc_relative */ | |
1649 | 0, /* bitpos */ | |
1650 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1651 | bfd_elf_generic_reloc, /* special_function */ | |
1652 | "R_NDS32_10_UPCREL_RELA",/* name */ | |
1653 | FALSE, /* partial_inplace */ | |
1654 | 0x1ff, /* src_mask */ | |
1655 | 0x1ff, /* dst_mask */ | |
1656 | TRUE), /* pcrel_offset */ | |
1657 | HOWTO2 (R_NDS32_SDA_FP7U2_RELA,/* type */ | |
1658 | 2, /* rightshift */ | |
1659 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1660 | 7, /* bitsize */ | |
1661 | FALSE, /* pc_relative */ | |
1662 | 0, /* bitpos */ | |
1663 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1664 | bfd_elf_generic_reloc, /* special_function */ | |
1665 | "R_NDS32_SDA_FP7U2_RELA",/* name */ | |
1666 | FALSE, /* partial_inplace */ | |
1667 | 0x0000007f, /* src_mask */ | |
1668 | 0x0000007f, /* dst_mask */ | |
1669 | FALSE), /* pcrel_offset */ | |
1670 | HOWTO2 (R_NDS32_WORD_9_PCREL_RELA,/* type */ | |
1671 | 1, /* rightshift */ | |
1672 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1673 | 8, /* bitsize */ | |
1674 | TRUE, /* pc_relative */ | |
1675 | 0, /* bitpos */ | |
1676 | complain_overflow_signed,/* complain_on_overflow */ | |
1677 | bfd_elf_generic_reloc, /* special_function */ | |
1678 | "R_NDS32_WORD_9_PCREL_RELA",/* name */ | |
1679 | FALSE, /* partial_inplace */ | |
1680 | 0xff, /* src_mask */ | |
1681 | 0xff, /* dst_mask */ | |
1682 | TRUE), /* pcrel_offset */ | |
1683 | HOWTO2 (R_NDS32_25_ABS_RELA, /* type */ | |
1684 | 1, /* rightshift */ | |
1685 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1686 | 24, /* bitsize */ | |
1687 | FALSE, /* pc_relative */ | |
1688 | 0, /* bitpos */ | |
1689 | complain_overflow_dont,/* complain_on_overflow */ | |
1690 | bfd_elf_generic_reloc, /* special_function */ | |
1691 | "R_NDS32_25_ABS_RELA", /* name */ | |
1692 | FALSE, /* partial_inplace */ | |
1693 | 0xffffff, /* src_mask */ | |
1694 | 0xffffff, /* dst_mask */ | |
1695 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1696 | |
1697 | /* A relative 17 bit relocation for ifc, right shifted by 1. */ | |
fbaf61ad NC |
1698 | HOWTO2 (R_NDS32_17IFC_PCREL_RELA,/* type */ |
1699 | 1, /* rightshift */ | |
1700 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1701 | 16, /* bitsize */ | |
1702 | TRUE, /* pc_relative */ | |
1703 | 0, /* bitpos */ | |
1704 | complain_overflow_signed,/* complain_on_overflow */ | |
1705 | bfd_elf_generic_reloc, /* special_function */ | |
1706 | "R_NDS32_17IFC_PCREL_RELA",/* name */ | |
1707 | FALSE, /* partial_inplace */ | |
1708 | 0xffff, /* src_mask */ | |
1709 | 0xffff, /* dst_mask */ | |
1710 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
1711 | |
1712 | /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */ | |
fbaf61ad NC |
1713 | HOWTO2 (R_NDS32_10IFCU_PCREL_RELA,/* type */ |
1714 | 1, /* rightshift */ | |
1715 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1716 | 9, /* bitsize */ | |
1717 | TRUE, /* pc_relative */ | |
1718 | 0, /* bitpos */ | |
1719 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1720 | bfd_elf_generic_reloc, /* special_function */ | |
1721 | "R_NDS32_10IFCU_PCREL_RELA",/* name */ | |
1722 | FALSE, /* partial_inplace */ | |
1723 | 0x1ff, /* src_mask */ | |
1724 | 0x1ff, /* dst_mask */ | |
1725 | TRUE), /* pcrel_offset */ | |
1726 | ||
1727 | /* Like R_NDS32_HI20, but referring to the TLS LE entry for the symbol. */ | |
1728 | HOWTO2 (R_NDS32_TLS_LE_HI20, /* type */ | |
1729 | 12, /* rightshift */ | |
1730 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1731 | 20, /* bitsize */ | |
1732 | FALSE, /* pc_relative */ | |
1733 | 0, /* bitpos */ | |
1734 | complain_overflow_dont,/* complain_on_overflow */ | |
1735 | bfd_elf_generic_reloc, /* special_function */ | |
1736 | "R_NDS32_TLS_LE_HI20", /* name */ | |
1737 | FALSE, /* partial_inplace */ | |
1738 | 0x000fffff, /* src_mask */ | |
1739 | 0x000fffff, /* dst_mask */ | |
1740 | FALSE), /* pcrel_offset */ | |
1741 | ||
1742 | HOWTO2 (R_NDS32_TLS_LE_LO12, /* type */ | |
1743 | 0, /* rightshift */ | |
1744 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1745 | 12, /* bitsize */ | |
1746 | FALSE, /* pc_relative */ | |
1747 | 0, /* bitpos */ | |
1748 | complain_overflow_dont,/* complain_on_overflow */ | |
1749 | bfd_elf_generic_reloc, /* special_function */ | |
1750 | "R_NDS32_TLS_LE_LO12", /* name */ | |
1751 | FALSE, /* partial_inplace */ | |
1752 | 0x00000fff, /* src_mask */ | |
1753 | 0x00000fff, /* dst_mask */ | |
1754 | FALSE), /* pcrel_offset */ | |
1755 | ||
1756 | /* Like R_NDS32_HI20, but referring to the TLS IE entry for the symbol. */ | |
1757 | HOWTO2 (R_NDS32_TLS_IE_HI20, /* type */ | |
1758 | 12, /* rightshift */ | |
1759 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1760 | 20, /* bitsize */ | |
1761 | FALSE, /* pc_relative */ | |
1762 | 0, /* bitpos */ | |
1763 | complain_overflow_dont,/* complain_on_overflow */ | |
1764 | bfd_elf_generic_reloc, /* special_function */ | |
1765 | "R_NDS32_TLS_IE_HI20", /* name */ | |
1766 | FALSE, /* partial_inplace */ | |
1767 | 0x000fffff, /* src_mask */ | |
1768 | 0x000fffff, /* dst_mask */ | |
1769 | FALSE), /* pcrel_offset */ | |
1770 | ||
1771 | HOWTO2 (R_NDS32_TLS_IE_LO12S2,/* type */ | |
1772 | 2, /* rightshift */ | |
1773 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1774 | 10, /* bitsize */ | |
1775 | FALSE, /* pc_relative */ | |
1776 | 0, /* bitpos */ | |
1777 | complain_overflow_dont,/* complain_on_overflow */ | |
1778 | bfd_elf_generic_reloc, /* special_function */ | |
1779 | "R_NDS32_TLS_IE_LO12S2",/* name */ | |
1780 | FALSE, /* partial_inplace */ | |
1781 | 0x000003ff, /* src_mask */ | |
1782 | 0x000003ff, /* dst_mask */ | |
1783 | FALSE), /* pcrel_offset */ | |
1784 | ||
1785 | /* TLS LE TP offset relocation */ | |
1786 | HOWTO2 (R_NDS32_TLS_TPOFF, /* type */ | |
1787 | 0, /* rightshift */ | |
1788 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1789 | 32, /* bitsize */ | |
1790 | FALSE, /* pc_relative */ | |
1791 | 0, /* bitpos */ | |
1792 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1793 | bfd_elf_generic_reloc, /* special_function */ | |
1794 | "R_NDS32_TLS_TPOFF", /* name */ | |
1795 | FALSE, /* partial_inplace */ | |
1796 | 0xffffffff, /* src_mask */ | |
1797 | 0xffffffff, /* dst_mask */ | |
1798 | FALSE), /* pcrel_offset */ | |
1799 | ||
1c8f6a4d | 1800 | /* A 20 bit address. */ |
fbaf61ad NC |
1801 | HOWTO2 (R_NDS32_TLS_LE_20, /* type */ |
1802 | 0, /* rightshift */ | |
1803 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1804 | 20, /* bitsize */ | |
1805 | FALSE, /* pc_relative */ | |
1806 | 0, /* bitpos */ | |
1807 | complain_overflow_signed,/* complain_on_overflow */ | |
1808 | bfd_elf_generic_reloc, /* special_function */ | |
1809 | "R_NDS32_TLS_LE_20", /* name */ | |
1810 | FALSE, /* partial_inplace */ | |
1811 | 0xfffff, /* src_mask */ | |
1812 | 0xfffff, /* dst_mask */ | |
1813 | FALSE), /* pcrel_offset */ | |
1814 | ||
1815 | HOWTO2 (R_NDS32_TLS_LE_15S0, /* type */ | |
1816 | 0, /* rightshift */ | |
1817 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1818 | 15, /* bitsize */ | |
1819 | FALSE, /* pc_relative */ | |
1820 | 0, /* bitpos */ | |
1821 | complain_overflow_signed,/* complain_on_overflow */ | |
1822 | bfd_elf_generic_reloc, /* special_function */ | |
1823 | "R_NDS32_TLS_LE_15S0", /* name */ | |
1824 | FALSE, /* partial_inplace */ | |
1825 | 0x7fff, /* src_mask */ | |
1826 | 0x7fff, /* dst_mask */ | |
1827 | FALSE), /* pcrel_offset */ | |
1828 | HOWTO2 (R_NDS32_TLS_LE_15S1, /* type */ | |
1829 | 1, /* rightshift */ | |
1830 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1831 | 15, /* bitsize */ | |
1832 | FALSE, /* pc_relative */ | |
1833 | 0, /* bitpos */ | |
1834 | complain_overflow_signed,/* complain_on_overflow */ | |
1835 | bfd_elf_generic_reloc, /* special_function */ | |
1836 | "R_NDS32_TLS_LE_15S1", /* name */ | |
1837 | FALSE, /* partial_inplace */ | |
1838 | 0x7fff, /* src_mask */ | |
1839 | 0x7fff, /* dst_mask */ | |
1840 | FALSE), /* pcrel_offset */ | |
1841 | HOWTO2 (R_NDS32_TLS_LE_15S2, /* type */ | |
1842 | 2, /* rightshift */ | |
1843 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1844 | 15, /* bitsize */ | |
1845 | FALSE, /* pc_relative */ | |
1846 | 0, /* bitpos */ | |
1847 | complain_overflow_signed,/* complain_on_overflow */ | |
1848 | bfd_elf_generic_reloc, /* special_function */ | |
1849 | "R_NDS32_TLS_LE_15S2", /* name */ | |
1850 | FALSE, /* partial_inplace */ | |
1851 | 0x7fff, /* src_mask */ | |
1852 | 0x7fff, /* dst_mask */ | |
1853 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1854 | |
1855 | /* Relax hint for unconditional call sequence */ | |
fbaf61ad NC |
1856 | HOWTO2 (R_NDS32_LONGCALL4, /* type */ |
1857 | 0, /* rightshift */ | |
1858 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1859 | 32, /* bitsize */ | |
1860 | FALSE, /* pc_relative */ | |
1861 | 0, /* bitpos */ | |
1862 | complain_overflow_dont,/* complain_on_overflow */ | |
1863 | nds32_elf_ignore_reloc,/* special_function */ | |
1864 | "R_NDS32_LONGCALL4", /* name */ | |
1865 | FALSE, /* partial_inplace */ | |
1866 | 0xffffffff, /* src_mask */ | |
1867 | 0xffffffff, /* dst_mask */ | |
1868 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1869 | |
1870 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1871 | HOWTO2 (R_NDS32_LONGCALL5, /* type */ |
1872 | 0, /* rightshift */ | |
1873 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1874 | 32, /* bitsize */ | |
1875 | FALSE, /* pc_relative */ | |
1876 | 0, /* bitpos */ | |
1877 | complain_overflow_dont,/* complain_on_overflow */ | |
1878 | nds32_elf_ignore_reloc,/* special_function */ | |
1879 | "R_NDS32_LONGCALL5", /* name */ | |
1880 | FALSE, /* partial_inplace */ | |
1881 | 0xffffffff, /* src_mask */ | |
1882 | 0xffffffff, /* dst_mask */ | |
1883 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1884 | |
1885 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1886 | HOWTO2 (R_NDS32_LONGCALL6, /* type */ |
1887 | 0, /* rightshift */ | |
1888 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1889 | 32, /* bitsize */ | |
1890 | FALSE, /* pc_relative */ | |
1891 | 0, /* bitpos */ | |
1892 | complain_overflow_dont,/* complain_on_overflow */ | |
1893 | nds32_elf_ignore_reloc,/* special_function */ | |
1894 | "R_NDS32_LONGCALL6", /* name */ | |
1895 | FALSE, /* partial_inplace */ | |
1896 | 0xffffffff, /* src_mask */ | |
1897 | 0xffffffff, /* dst_mask */ | |
1898 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1899 | |
1900 | /* Relax hint for unconditional branch sequence. */ | |
fbaf61ad NC |
1901 | HOWTO2 (R_NDS32_LONGJUMP4, /* type */ |
1902 | 0, /* rightshift */ | |
1903 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1904 | 32, /* bitsize */ | |
1905 | FALSE, /* pc_relative */ | |
1906 | 0, /* bitpos */ | |
1907 | complain_overflow_dont,/* complain_on_overflow */ | |
1908 | nds32_elf_ignore_reloc,/* special_function */ | |
1909 | "R_NDS32_LONGJUMP4", /* name */ | |
1910 | FALSE, /* partial_inplace */ | |
1911 | 0xffffffff, /* src_mask */ | |
1912 | 0xffffffff, /* dst_mask */ | |
1913 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1914 | |
1915 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1916 | HOWTO2 (R_NDS32_LONGJUMP5, /* type */ |
1917 | 0, /* rightshift */ | |
1918 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1919 | 32, /* bitsize */ | |
1920 | FALSE, /* pc_relative */ | |
1921 | 0, /* bitpos */ | |
1922 | complain_overflow_dont,/* complain_on_overflow */ | |
1923 | nds32_elf_ignore_reloc,/* special_function */ | |
1924 | "R_NDS32_LONGJUMP5", /* name */ | |
1925 | FALSE, /* partial_inplace */ | |
1926 | 0xffffffff, /* src_mask */ | |
1927 | 0xffffffff, /* dst_mask */ | |
1928 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1929 | |
1930 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1931 | HOWTO2 (R_NDS32_LONGJUMP6, /* type */ |
1932 | 0, /* rightshift */ | |
1933 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1934 | 32, /* bitsize */ | |
1935 | FALSE, /* pc_relative */ | |
1936 | 0, /* bitpos */ | |
1937 | complain_overflow_dont,/* complain_on_overflow */ | |
1938 | nds32_elf_ignore_reloc,/* special_function */ | |
1939 | "R_NDS32_LONGJUMP6", /* name */ | |
1940 | FALSE, /* partial_inplace */ | |
1941 | 0xffffffff, /* src_mask */ | |
1942 | 0xffffffff, /* dst_mask */ | |
1943 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1944 | |
1945 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1946 | HOWTO2 (R_NDS32_LONGJUMP7, /* type */ |
1947 | 0, /* rightshift */ | |
1948 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1949 | 32, /* bitsize */ | |
1950 | FALSE, /* pc_relative */ | |
1951 | 0, /* bitpos */ | |
1952 | complain_overflow_dont,/* complain_on_overflow */ | |
1953 | nds32_elf_ignore_reloc,/* special_function */ | |
1954 | "R_NDS32_LONGJUMP7", /* name */ | |
1955 | FALSE, /* partial_inplace */ | |
1956 | 0xffffffff, /* src_mask */ | |
1957 | 0xffffffff, /* dst_mask */ | |
1958 | FALSE), /* pcrel_offset */ | |
1959 | ||
1960 | HOWTO2 (R_NDS32_TLS_IE_LO12, /* type */ | |
1961 | 0, /* rightshift */ | |
1962 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1963 | 12, /* bitsize */ | |
1964 | FALSE, /* pc_relative */ | |
1965 | 0, /* bitpos */ | |
1966 | complain_overflow_dont,/* complain_on_overflow */ | |
1967 | bfd_elf_generic_reloc, /* special_function */ | |
1968 | "R_NDS32_TLS_IE_LO12", /* name */ | |
1969 | FALSE, /* partial_inplace */ | |
1970 | 0x00000fff, /* src_mask */ | |
1971 | 0x00000fff, /* dst_mask */ | |
1972 | FALSE), /* pcrel_offset */ | |
1973 | ||
1974 | /* Like R_NDS32_HI20, but referring to the TLS IE (PIE) | |
1975 | entry for the symbol. */ | |
1976 | HOWTO2 (R_NDS32_TLS_IEGP_HI20,/* type */ | |
1977 | 12, /* rightshift */ | |
1978 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1979 | 20, /* bitsize */ | |
1980 | FALSE, /* pc_relative */ | |
1981 | 0, /* bitpos */ | |
1982 | complain_overflow_dont,/* complain_on_overflow */ | |
1983 | bfd_elf_generic_reloc, /* special_function */ | |
1984 | "R_NDS32_TLS_IEGP_HI20",/* name */ | |
1985 | FALSE, /* partial_inplace */ | |
1986 | 0x000fffff, /* src_mask */ | |
1987 | 0x000fffff, /* dst_mask */ | |
1988 | FALSE), /* pcrel_offset */ | |
1989 | ||
1990 | HOWTO2 (R_NDS32_TLS_IEGP_LO12,/* type */ | |
1991 | 0, /* rightshift */ | |
1992 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1993 | 12, /* bitsize */ | |
1994 | FALSE, /* pc_relative */ | |
1995 | 0, /* bitpos */ | |
1996 | complain_overflow_dont,/* complain_on_overflow */ | |
1997 | bfd_elf_generic_reloc, /* special_function */ | |
1998 | "R_NDS32_TLS_IEGP_LO12",/* name */ | |
1999 | FALSE, /* partial_inplace */ | |
2000 | 0x00000fff, /* src_mask */ | |
2001 | 0x00000fff, /* dst_mask */ | |
2002 | FALSE), /* pcrel_offset */ | |
2003 | ||
2004 | HOWTO2 (R_NDS32_TLS_IEGP_LO12S2,/* type */ | |
2005 | 2, /* rightshift */ | |
2006 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2007 | 10, /* bitsize */ | |
2008 | FALSE, /* pc_relative */ | |
2009 | 0, /* bitpos */ | |
2010 | complain_overflow_dont,/* complain_on_overflow */ | |
2011 | bfd_elf_generic_reloc, /* special_function */ | |
2012 | "R_NDS32_TLS_IEGP_LO12S2",/* name */ | |
2013 | FALSE, /* partial_inplace */ | |
2014 | 0x000003ff, /* src_mask */ | |
2015 | 0x000003ff, /* dst_mask */ | |
2016 | FALSE), /* pcrel_offset */ | |
2017 | ||
2018 | /* TLS description relocation */ | |
2019 | HOWTO2 (R_NDS32_TLS_DESC, /* type */ | |
2020 | 12, /* rightshift */ | |
2021 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2022 | 20, /* bitsize */ | |
2023 | FALSE, /* pc_relative */ | |
2024 | 0, /* bitpos */ | |
2025 | complain_overflow_dont,/* complain_on_overflow */ | |
2026 | nds32_elf_hi20_reloc, /* special_function */ | |
2027 | "R_NDS32_TLS_DESC_HI20",/* name */ | |
2028 | FALSE, /* partial_inplace */ | |
2029 | 0x000fffff, /* src_mask */ | |
2030 | 0x000fffff, /* dst_mask */ | |
2031 | FALSE), /* pcrel_offset */ | |
2032 | ||
2033 | /* TLS GD/LD description offset high part. */ | |
2034 | HOWTO2 (R_NDS32_TLS_DESC_HI20,/* type */ | |
2035 | 12, /* rightshift */ | |
2036 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2037 | 20, /* bitsize */ | |
2038 | FALSE, /* pc_relative */ | |
2039 | 0, /* bitpos */ | |
2040 | complain_overflow_dont,/* complain_on_overflow */ | |
2041 | nds32_elf_hi20_reloc, /* special_function */ | |
2042 | "R_NDS32_TLS_DESC_HI20",/* name */ | |
2043 | FALSE, /* partial_inplace */ | |
2044 | 0x000fffff, /* src_mask */ | |
2045 | 0x000fffff, /* dst_mask */ | |
2046 | FALSE), /* pcrel_offset */ | |
2047 | ||
2048 | /* TLS GD/LD description offset low part. */ | |
2049 | HOWTO2 (R_NDS32_TLS_DESC_LO12,/* type */ | |
2050 | 0, /* rightshift */ | |
2051 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2052 | 12, /* bitsize */ | |
2053 | FALSE, /* pc_relative */ | |
2054 | 0, /* bitpos */ | |
2055 | complain_overflow_dont,/* complain_on_overflow */ | |
2056 | nds32_elf_lo12_reloc, /* special_function */ | |
2057 | "R_NDS32_TLS_DESC_LO12",/* name */ | |
2058 | FALSE, /* partial_inplace */ | |
2059 | 0x00000fff, /* src_mask */ | |
2060 | 0x00000fff, /* dst_mask */ | |
2061 | FALSE), /* pcrel_offset */ | |
2062 | ||
2063 | /* TLS GD/LD description offset set (movi). */ | |
2064 | HOWTO2 (R_NDS32_TLS_DESC_20, /* type */ | |
2065 | 0, /* rightshift */ | |
2066 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2067 | 20, /* bitsize */ | |
2068 | FALSE, /* pc_relative */ | |
2069 | 0, /* bitpos */ | |
2070 | complain_overflow_signed,/* complain_on_overflow */ | |
2071 | bfd_elf_generic_reloc, /* special_function */ | |
2072 | "R_NDS32_TLS_DESC_20", /* name */ | |
2073 | FALSE, /* partial_inplace */ | |
2074 | 0x000fffff, /* src_mask */ | |
2075 | 0x000fffff, /* dst_mask */ | |
2076 | FALSE), /* pcrel_offset */ | |
2077 | ||
2078 | /* TLS GD/LD description offset set (lwi.gp). */ | |
2079 | HOWTO2 (R_NDS32_TLS_DESC_SDA17S2,/* type */ | |
2080 | 2, /* rightshift */ | |
2081 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2082 | 17, /* bitsize */ | |
2083 | FALSE, /* pc_relative */ | |
2084 | 0, /* bitpos */ | |
2085 | complain_overflow_signed,/* complain_on_overflow */ | |
2086 | bfd_elf_generic_reloc, /* special_function */ | |
2087 | "R_NDS32_TLS_DESC_SDA17S2",/* name */ | |
2088 | FALSE, /* partial_inplace */ | |
2089 | 0x0001ffff, /* src_mask */ | |
2090 | 0x0001ffff, /* dst_mask */ | |
2091 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
2092 | }; |
2093 | ||
2094 | /* Relocations used for relaxation. */ | |
fbaf61ad NC |
2095 | #define HOWTO3(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ |
2096 | [C-R_NDS32_RELAX_ENTRY] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) | |
2097 | ||
2098 | static reloc_howto_type nds32_elf_relax_howto_table[] = { | |
2099 | HOWTO3 (R_NDS32_RELAX_ENTRY, /* type */ | |
2100 | 0, /* rightshift */ | |
2101 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2102 | 32, /* bitsize */ | |
2103 | FALSE, /* pc_relative */ | |
2104 | 0, /* bitpos */ | |
2105 | complain_overflow_dont,/* complain_on_overflow */ | |
2106 | nds32_elf_ignore_reloc,/* special_function */ | |
2107 | "R_NDS32_RELAX_ENTRY", /* name */ | |
2108 | FALSE, /* partial_inplace */ | |
2109 | 0xffffffff, /* src_mask */ | |
2110 | 0xffffffff, /* dst_mask */ | |
2111 | FALSE), /* pcrel_offset */ | |
2112 | HOWTO3 (R_NDS32_GOT_SUFF, /* type */ | |
2113 | 0, /* rightshift */ | |
2114 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2115 | 32, /* bitsize */ | |
2116 | FALSE, /* pc_relative */ | |
2117 | 0, /* bitpos */ | |
2118 | complain_overflow_dont,/* complain_on_overflow */ | |
2119 | nds32_elf_ignore_reloc,/* special_function */ | |
2120 | "R_NDS32_GOT_SUFF", /* name */ | |
2121 | FALSE, /* partial_inplace */ | |
2122 | 0xffffffff, /* src_mask */ | |
2123 | 0xffffffff, /* dst_mask */ | |
2124 | FALSE), /* pcrel_offset */ | |
2125 | HOWTO3 (R_NDS32_GOTOFF_SUFF, /* type */ | |
2126 | 0, /* rightshift */ | |
2127 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2128 | 32, /* bitsize */ | |
2129 | FALSE, /* pc_relative */ | |
2130 | 0, /* bitpos */ | |
2131 | complain_overflow_bitfield,/* complain_on_overflow */ | |
2132 | nds32_elf_ignore_reloc,/* special_function */ | |
2133 | "R_NDS32_GOTOFF_SUFF", /* name */ | |
2134 | FALSE, /* partial_inplace */ | |
2135 | 0xffffffff, /* src_mask */ | |
2136 | 0xffffffff, /* dst_mask */ | |
2137 | FALSE), /* pcrel_offset */ | |
2138 | HOWTO3 (R_NDS32_PLT_GOT_SUFF, /* type */ | |
2139 | 0, /* rightshift */ | |
2140 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2141 | 32, /* bitsize */ | |
2142 | FALSE, /* pc_relative */ | |
2143 | 0, /* bitpos */ | |
2144 | complain_overflow_dont,/* complain_on_overflow */ | |
2145 | nds32_elf_ignore_reloc,/* special_function */ | |
2146 | "R_NDS32_PLT_GOT_SUFF",/* name */ | |
2147 | FALSE, /* partial_inplace */ | |
2148 | 0xffffffff, /* src_mask */ | |
2149 | 0xffffffff, /* dst_mask */ | |
2150 | FALSE), /* pcrel_offset */ | |
2151 | HOWTO3 (R_NDS32_MULCALL_SUFF, /* type */ | |
2152 | 0, /* rightshift */ | |
2153 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2154 | 32, /* bitsize */ | |
2155 | FALSE, /* pc_relative */ | |
2156 | 0, /* bitpos */ | |
2157 | complain_overflow_dont,/* complain_on_overflow */ | |
2158 | nds32_elf_ignore_reloc,/* special_function */ | |
2159 | "R_NDS32_MULCALL_SUFF",/* name */ | |
2160 | FALSE, /* partial_inplace */ | |
2161 | 0xffffffff, /* src_mask */ | |
2162 | 0xffffffff, /* dst_mask */ | |
2163 | FALSE), /* pcrel_offset */ | |
2164 | HOWTO3 (R_NDS32_PTR, /* type */ | |
2165 | 0, /* rightshift */ | |
2166 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2167 | 32, /* bitsize */ | |
2168 | FALSE, /* pc_relative */ | |
2169 | 0, /* bitpos */ | |
2170 | complain_overflow_dont,/* complain_on_overflow */ | |
2171 | nds32_elf_ignore_reloc,/* special_function */ | |
2172 | "R_NDS32_PTR", /* name */ | |
2173 | FALSE, /* partial_inplace */ | |
2174 | 0xffffffff, /* src_mask */ | |
2175 | 0xffffffff, /* dst_mask */ | |
2176 | FALSE), /* pcrel_offset */ | |
2177 | HOWTO3 (R_NDS32_PTR_COUNT, /* type */ | |
2178 | 0, /* rightshift */ | |
2179 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2180 | 32, /* bitsize */ | |
2181 | FALSE, /* pc_relative */ | |
2182 | 0, /* bitpos */ | |
2183 | complain_overflow_dont,/* complain_on_overflow */ | |
2184 | nds32_elf_ignore_reloc,/* special_function */ | |
2185 | "R_NDS32_PTR_COUNT", /* name */ | |
2186 | FALSE, /* partial_inplace */ | |
2187 | 0xffffffff, /* src_mask */ | |
2188 | 0xffffffff, /* dst_mask */ | |
2189 | FALSE), /* pcrel_offset */ | |
2190 | HOWTO3 (R_NDS32_PTR_RESOLVED, /* type */ | |
2191 | 0, /* rightshift */ | |
2192 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2193 | 32, /* bitsize */ | |
2194 | FALSE, /* pc_relative */ | |
2195 | 0, /* bitpos */ | |
2196 | complain_overflow_dont,/* complain_on_overflow */ | |
2197 | nds32_elf_ignore_reloc,/* special_function */ | |
2198 | "R_NDS32_PTR_RESOLVED",/* name */ | |
2199 | FALSE, /* partial_inplace */ | |
2200 | 0xffffffff, /* src_mask */ | |
2201 | 0xffffffff, /* dst_mask */ | |
2202 | FALSE), /* pcrel_offset */ | |
2203 | HOWTO3 (R_NDS32_PLTBLOCK, /* type */ | |
2204 | 0, /* rightshift */ | |
2205 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2206 | 32, /* bitsize */ | |
2207 | FALSE, /* pc_relative */ | |
2208 | 0, /* bitpos */ | |
2209 | complain_overflow_dont,/* complain_on_overflow */ | |
2210 | nds32_elf_ignore_reloc,/* special_function */ | |
2211 | "R_NDS32_PLTBLOCK", /* name */ | |
2212 | FALSE, /* partial_inplace */ | |
2213 | 0xffffffff, /* src_mask */ | |
2214 | 0xffffffff, /* dst_mask */ | |
2215 | FALSE), /* pcrel_offset */ | |
2216 | HOWTO3 (R_NDS32_RELAX_REGION_BEGIN,/* type */ | |
2217 | 0, /* rightshift */ | |
2218 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2219 | 32, /* bitsize */ | |
2220 | FALSE, /* pc_relative */ | |
2221 | 0, /* bitpos */ | |
2222 | complain_overflow_dont,/* complain_on_overflow */ | |
2223 | nds32_elf_ignore_reloc,/* special_function */ | |
2224 | "R_NDS32_RELAX_REGION_BEGIN",/* name */ | |
2225 | FALSE, /* partial_inplace */ | |
2226 | 0xffffffff, /* src_mask */ | |
2227 | 0xffffffff, /* dst_mask */ | |
2228 | FALSE), /* pcrel_offset */ | |
2229 | HOWTO3 (R_NDS32_RELAX_REGION_END,/* type */ | |
2230 | 0, /* rightshift */ | |
2231 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2232 | 32, /* bitsize */ | |
2233 | FALSE, /* pc_relative */ | |
2234 | 0, /* bitpos */ | |
2235 | complain_overflow_dont,/* complain_on_overflow */ | |
2236 | nds32_elf_ignore_reloc,/* special_function */ | |
2237 | "R_NDS32_RELAX_REGION_END",/* name */ | |
2238 | FALSE, /* partial_inplace */ | |
2239 | 0xffffffff, /* src_mask */ | |
2240 | 0xffffffff, /* dst_mask */ | |
2241 | FALSE), /* pcrel_offset */ | |
2242 | HOWTO3 (R_NDS32_MINUEND, /* type */ | |
2243 | 0, /* rightshift */ | |
2244 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2245 | 32, /* bitsize */ | |
2246 | FALSE, /* pc_relative */ | |
2247 | 0, /* bitpos */ | |
2248 | complain_overflow_dont,/* complain_on_overflow */ | |
2249 | nds32_elf_ignore_reloc,/* special_function */ | |
2250 | "R_NDS32_MINUEND", /* name */ | |
2251 | FALSE, /* partial_inplace */ | |
2252 | 0xffffffff, /* src_mask */ | |
2253 | 0xffffffff, /* dst_mask */ | |
2254 | FALSE), /* pcrel_offset */ | |
2255 | HOWTO3 (R_NDS32_SUBTRAHEND, /* type */ | |
2256 | 0, /* rightshift */ | |
2257 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2258 | 32, /* bitsize */ | |
2259 | FALSE, /* pc_relative */ | |
2260 | 0, /* bitpos */ | |
2261 | complain_overflow_dont,/* complain_on_overflow */ | |
2262 | nds32_elf_ignore_reloc,/* special_function */ | |
2263 | "R_NDS32_SUBTRAHEND", /* name */ | |
2264 | FALSE, /* partial_inplace */ | |
2265 | 0xffffffff, /* src_mask */ | |
2266 | 0xffffffff, /* dst_mask */ | |
2267 | FALSE), /* pcrel_offset */ | |
2268 | HOWTO3 (R_NDS32_DIFF8, /* type */ | |
2269 | 0, /* rightshift */ | |
2270 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
2271 | 8, /* bitsize */ | |
2272 | FALSE, /* pc_relative */ | |
2273 | 0, /* bitpos */ | |
2274 | complain_overflow_dont,/* complain_on_overflow */ | |
2275 | nds32_elf_ignore_reloc,/* special_function */ | |
2276 | "R_NDS32_DIFF8", /* name */ | |
2277 | FALSE, /* partial_inplace */ | |
2278 | 0x000000ff, /* src_mask */ | |
2279 | 0x000000ff, /* dst_mask */ | |
2280 | FALSE), /* pcrel_offset */ | |
2281 | HOWTO3 (R_NDS32_DIFF16, /* type */ | |
2282 | 0, /* rightshift */ | |
2283 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
2284 | 16, /* bitsize */ | |
2285 | FALSE, /* pc_relative */ | |
2286 | 0, /* bitpos */ | |
2287 | complain_overflow_dont,/* complain_on_overflow */ | |
2288 | nds32_elf_ignore_reloc,/* special_function */ | |
2289 | "R_NDS32_DIFF16", /* name */ | |
2290 | FALSE, /* partial_inplace */ | |
2291 | 0x0000ffff, /* src_mask */ | |
2292 | 0x0000ffff, /* dst_mask */ | |
2293 | FALSE), /* pcrel_offset */ | |
2294 | HOWTO3 (R_NDS32_DIFF32, /* type */ | |
2295 | 0, /* rightshift */ | |
2296 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2297 | 32, /* bitsize */ | |
2298 | FALSE, /* pc_relative */ | |
2299 | 0, /* bitpos */ | |
2300 | complain_overflow_dont,/* complain_on_overflow */ | |
2301 | nds32_elf_ignore_reloc,/* special_function */ | |
2302 | "R_NDS32_DIFF32", /* name */ | |
2303 | FALSE, /* partial_inplace */ | |
2304 | 0xffffffff, /* src_mask */ | |
2305 | 0xffffffff, /* dst_mask */ | |
2306 | FALSE), /* pcrel_offset */ | |
2307 | HOWTO3 (R_NDS32_DIFF_ULEB128, /* type */ | |
2308 | 0, /* rightshift */ | |
2309 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
2310 | 0, /* bitsize */ | |
2311 | FALSE, /* pc_relative */ | |
2312 | 0, /* bitpos */ | |
2313 | complain_overflow_dont,/* complain_on_overflow */ | |
2314 | nds32_elf_ignore_reloc,/* special_function */ | |
2315 | "R_NDS32_DIFF_ULEB128",/* name */ | |
2316 | FALSE, /* partial_inplace */ | |
2317 | 0xffffffff, /* src_mask */ | |
2318 | 0xffffffff, /* dst_mask */ | |
2319 | FALSE), /* pcrel_offset */ | |
2320 | HOWTO3 (R_NDS32_DATA, /* type */ | |
2321 | 0, /* rightshift */ | |
2322 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2323 | 32, /* bitsize */ | |
2324 | FALSE, /* pc_relative */ | |
2325 | 0, /* bitpos */ | |
2326 | complain_overflow_dont,/* complain_on_overflow */ | |
2327 | nds32_elf_ignore_reloc,/* special_function */ | |
2328 | "R_NDS32_DATA", /* name */ | |
2329 | FALSE, /* partial_inplace */ | |
2330 | 0xffffffff, /* src_mask */ | |
2331 | 0xffffffff, /* dst_mask */ | |
2332 | FALSE), /* pcrel_offset */ | |
2333 | HOWTO3 (R_NDS32_TRAN, /* type */ | |
2334 | 0, /* rightshift */ | |
2335 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2336 | 32, /* bitsize */ | |
2337 | FALSE, /* pc_relative */ | |
2338 | 0, /* bitpos */ | |
2339 | complain_overflow_dont,/* complain_on_overflow */ | |
2340 | nds32_elf_ignore_reloc,/* special_function */ | |
2341 | "R_NDS32_TRAN", /* name */ | |
2342 | FALSE, /* partial_inplace */ | |
2343 | 0xffffffff, /* src_mask */ | |
2344 | 0xffffffff, /* dst_mask */ | |
2345 | FALSE), /* pcrel_offset */ | |
2346 | HOWTO3 (R_NDS32_TLS_LE_ADD, /* type */ | |
2347 | 0, /* rightshift */ | |
2348 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2349 | 32, /* bitsize */ | |
2350 | FALSE, /* pc_relative */ | |
2351 | 0, /* bitpos */ | |
2352 | complain_overflow_dont,/* complain_on_overflow */ | |
2353 | nds32_elf_ignore_reloc,/* special_function */ | |
2354 | "R_NDS32_TLS_LE_ADD", /* name */ | |
2355 | FALSE, /* partial_inplace */ | |
2356 | 0xffffffff, /* src_mask */ | |
2357 | 0xffffffff, /* dst_mask */ | |
2358 | FALSE), /* pcrel_offset */ | |
2359 | HOWTO3 (R_NDS32_TLS_LE_LS, /* type */ | |
2360 | 0, /* rightshift */ | |
2361 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2362 | 32, /* bitsize */ | |
2363 | FALSE, /* pc_relative */ | |
2364 | 0, /* bitpos */ | |
2365 | complain_overflow_dont,/* complain_on_overflow */ | |
2366 | nds32_elf_ignore_reloc,/* special_function */ | |
2367 | "R_NDS32_TLS_LE_LS", /* name */ | |
2368 | FALSE, /* partial_inplace */ | |
2369 | 0xffffffff, /* src_mask */ | |
2370 | 0xffffffff, /* dst_mask */ | |
2371 | FALSE), /* pcrel_offset */ | |
2372 | HOWTO3 (R_NDS32_EMPTY, /* type */ | |
2373 | 0, /* rightshift */ | |
2374 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2375 | 32, /* bitsize */ | |
2376 | FALSE, /* pc_relative */ | |
2377 | 0, /* bitpos */ | |
2378 | complain_overflow_dont,/* complain_on_overflow */ | |
2379 | nds32_elf_ignore_reloc,/* special_function */ | |
2380 | "R_NDS32_EMPTY", /* name */ | |
2381 | FALSE, /* partial_inplace */ | |
2382 | 0xffffffff, /* src_mask */ | |
2383 | 0xffffffff, /* dst_mask */ | |
2384 | FALSE), /* pcrel_offset */ | |
2385 | /* TLS GD/LD description address base addition. */ | |
2386 | HOWTO3 (R_NDS32_TLS_DESC_ADD, /* type */ | |
2387 | 0, /* rightshift */ | |
2388 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2389 | 32, /* bitsize */ | |
2390 | FALSE, /* pc_relative */ | |
2391 | 0, /* bitpos */ | |
2392 | complain_overflow_dont,/* complain_on_overflow */ | |
2393 | nds32_elf_ignore_reloc,/* special_function */ | |
2394 | "R_NDS32_TLS_DESC_ADD",/* name */ | |
2395 | FALSE, /* partial_inplace */ | |
2396 | 0xffffffff, /* src_mask */ | |
2397 | 0xffffffff, /* dst_mask */ | |
2398 | FALSE), /* pcrel_offset */ | |
2399 | /* TLS GD/LD description function load. */ | |
2400 | HOWTO3 (R_NDS32_TLS_DESC_FUNC,/* type */ | |
2401 | 0, /* rightshift */ | |
2402 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2403 | 32, /* bitsize */ | |
2404 | FALSE, /* pc_relative */ | |
2405 | 0, /* bitpos */ | |
2406 | complain_overflow_dont,/* complain_on_overflow */ | |
2407 | nds32_elf_ignore_reloc,/* special_function */ | |
2408 | "R_NDS32_TLS_DESC_FUNC",/* name */ | |
2409 | FALSE, /* partial_inplace */ | |
2410 | 0xffffffff, /* src_mask */ | |
2411 | 0xffffffff, /* dst_mask */ | |
2412 | FALSE), /* pcrel_offset */ | |
2413 | /* TLS DESC resolve function call. */ | |
2414 | HOWTO3 (R_NDS32_TLS_DESC_CALL,/* type */ | |
2415 | 0, /* rightshift */ | |
2416 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2417 | 32, /* bitsize */ | |
2418 | FALSE, /* pc_relative */ | |
2419 | 0, /* bitpos */ | |
2420 | complain_overflow_dont,/* complain_on_overflow */ | |
2421 | nds32_elf_ignore_reloc,/* special_function */ | |
2422 | "R_NDS32_TLS_DESC_CALL",/* name */ | |
2423 | FALSE, /* partial_inplace */ | |
2424 | 0xffffffff, /* src_mask */ | |
2425 | 0xffffffff, /* dst_mask */ | |
2426 | FALSE), /* pcrel_offset */ | |
2427 | /* TLS DESC variable access. */ | |
2428 | HOWTO3 (R_NDS32_TLS_DESC_MEM, /* type */ | |
2429 | 0, /* rightshift */ | |
2430 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2431 | 32, /* bitsize */ | |
2432 | FALSE, /* pc_relative */ | |
2433 | 0, /* bitpos */ | |
2434 | complain_overflow_dont,/* complain_on_overflow */ | |
2435 | nds32_elf_ignore_reloc,/* special_function */ | |
2436 | "R_NDS32_TLS_DESC_MEM",/* name */ | |
2437 | FALSE, /* partial_inplace */ | |
2438 | 0xffffffff, /* src_mask */ | |
2439 | 0xffffffff, /* dst_mask */ | |
2440 | FALSE), /* pcrel_offset */ | |
2441 | /* TLS GD/LD description mark (@tlsdec). */ | |
2442 | HOWTO3 (R_NDS32_RELAX_REMOVE, /* type */ | |
2443 | 0, /* rightshift */ | |
2444 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2445 | 32, /* bitsize */ | |
2446 | FALSE, /* pc_relative */ | |
2447 | 0, /* bitpos */ | |
2448 | complain_overflow_dont,/* complain_on_overflow */ | |
2449 | nds32_elf_ignore_reloc,/* special_function */ | |
2450 | "R_NDS32_REMOVE", /* name */ | |
2451 | FALSE, /* partial_inplace */ | |
2452 | 0xffffffff, /* src_mask */ | |
2453 | 0xffffffff, /* dst_mask */ | |
2454 | FALSE), /* pcrel_offset */ | |
2455 | /* TLS GD/LD description mark (@tlsdec). */ | |
2456 | HOWTO3 (R_NDS32_RELAX_GROUP, /* type */ | |
2457 | 0, /* rightshift */ | |
2458 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2459 | 32, /* bitsize */ | |
2460 | FALSE, /* pc_relative */ | |
2461 | 0, /* bitpos */ | |
2462 | complain_overflow_dont,/* complain_on_overflow */ | |
2463 | nds32_elf_ignore_reloc,/* special_function */ | |
2464 | "R_NDS32_GROUP", /* name */ | |
2465 | FALSE, /* partial_inplace */ | |
2466 | 0xffffffff, /* src_mask */ | |
2467 | 0xffffffff, /* dst_mask */ | |
2468 | FALSE), /* pcrel_offset */ | |
2469 | HOWTO3 (R_NDS32_TLS_IEGP_LW, /* type */ | |
2470 | 0, /* rightshift */ | |
2471 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2472 | 32, /* bitsize */ | |
2473 | FALSE, /* pc_relative */ | |
2474 | 0, /* bitpos */ | |
2475 | complain_overflow_dont,/* complain_on_overflow */ | |
2476 | nds32_elf_ignore_reloc,/* special_function */ | |
2477 | "R_NDS32_TLS_IEGP_LW", /* name */ | |
2478 | FALSE, /* partial_inplace */ | |
2479 | 0xffffffff, /* src_mask */ | |
2480 | 0xffffffff, /* dst_mask */ | |
2481 | FALSE), /* pcrel_offset */ | |
2482 | /* LA and FLSI relaxation. */ | |
2483 | HOWTO3 (R_NDS32_LSI, /* type */ | |
2484 | 0, /* rightshift */ | |
2485 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2486 | 32, /* bitsize */ | |
2487 | FALSE, /* pc_relative */ | |
2488 | 0, /* bitpos */ | |
2489 | complain_overflow_dont,/* complain_on_overflow */ | |
2490 | nds32_elf_ignore_reloc,/* special_function */ | |
2491 | "R_NDS32_LSI", /* name */ | |
2492 | FALSE, /* partial_inplace */ | |
2493 | 0xffffffff, /* src_mask */ | |
2494 | 0xffffffff, /* dst_mask */ | |
2495 | FALSE), | |
35c08157 KLC |
2496 | }; |
2497 | ||
fbaf61ad NC |
2498 | static unsigned long dl_tlsdesc_lazy_trampoline[] = |
2499 | { | |
2500 | 0x46200000, /* sethi $r2,#0x0 */ | |
2501 | 0x58210000, /* ori $r2,$r2,#0x0 */ | |
2502 | 0x40217400, /* add $r2,$r2,$gp */ | |
2503 | 0x04210000, /* lwi $r2,[$r2+#0x0] */ | |
2504 | 0x46300000, /* sethi $r3,#0x0 */ | |
2505 | 0x58318000, /* ori $r3,$r3,#0x0 */ | |
2506 | 0x4031f400, /* add $r3,$r3,$gp */ | |
2507 | 0x4a000800, /* jr $r2 */ | |
2508 | }; | |
2509 | ||
2510 | static void | |
2511 | nds32_put_trampoline (void *contents, const unsigned long *template, | |
2512 | unsigned count) | |
2513 | { | |
2514 | unsigned ix; | |
2515 | ||
2516 | for (ix = 0; ix != count; ix++) | |
2517 | { | |
2518 | unsigned long insn = template[ix]; | |
2519 | bfd_putb32 (insn, (char *) contents + ix * 4); | |
2520 | } | |
2521 | } | |
2522 | ||
35c08157 KLC |
2523 | /* nds32_insertion_sort sorts an array with nmemb elements of size size. |
2524 | This prototype is the same as qsort (). */ | |
2525 | ||
2526 | void | |
2527 | nds32_insertion_sort (void *base, size_t nmemb, size_t size, | |
2528 | int (*compar) (const void *lhs, const void *rhs)) | |
2529 | { | |
2530 | char *ptr = (char *) base; | |
1c8f6a4d | 2531 | int i, j; |
9a733151 AM |
2532 | char tmp[sizeof (Elf_Internal_Rela)]; |
2533 | ||
2534 | BFD_ASSERT (size <= sizeof (tmp)); | |
35c08157 KLC |
2535 | |
2536 | /* If i is less than j, i is inserted before j. | |
2537 | ||
2538 | |---- j ----- i --------------| | |
2539 | \ / \ / | |
2540 | sorted unsorted | |
2541 | */ | |
2542 | ||
1c8f6a4d | 2543 | for (i = 1; i < (int) nmemb; i++) |
35c08157 | 2544 | { |
1c8f6a4d KLC |
2545 | for (j = (i - 1); j >= 0; j--) |
2546 | if (compar (ptr + i * size, ptr + j * size) >= 0) | |
35c08157 KLC |
2547 | break; |
2548 | ||
1c8f6a4d KLC |
2549 | j++; |
2550 | ||
35c08157 | 2551 | if (i == j) |
1c8f6a4d | 2552 | continue; /* i is in order. */ |
35c08157 KLC |
2553 | |
2554 | memcpy (tmp, ptr + i * size, size); | |
2555 | memmove (ptr + (j + 1) * size, ptr + j * size, (i - j) * size); | |
2556 | memcpy (ptr + j * size, tmp, size); | |
2557 | } | |
2558 | } | |
2559 | ||
2560 | /* Sort relocation by r_offset. | |
2561 | ||
2562 | We didn't use qsort () in stdlib, because quick-sort is not a stable sorting | |
2563 | algorithm. Relocations at the same r_offset must keep their order. | |
2564 | For example, RELAX_ENTRY must be the very first relocation entry. | |
2565 | ||
2566 | Currently, this function implements insertion-sort. | |
2567 | ||
2568 | FIXME: If we already sort them in assembler, why bother sort them | |
2569 | here again? */ | |
2570 | ||
2571 | static int | |
2572 | compar_reloc (const void *lhs, const void *rhs) | |
2573 | { | |
2574 | const Elf_Internal_Rela *l = (const Elf_Internal_Rela *) lhs; | |
2575 | const Elf_Internal_Rela *r = (const Elf_Internal_Rela *) rhs; | |
2576 | ||
2577 | if (l->r_offset > r->r_offset) | |
2578 | return 1; | |
2579 | else if (l->r_offset == r->r_offset) | |
2580 | return 0; | |
2581 | else | |
2582 | return -1; | |
2583 | } | |
2584 | ||
2585 | /* Functions listed below are only used for old relocs. | |
fbaf61ad NC |
2586 | nds32_elf_9_pcrel_reloc |
2587 | nds32_elf_do_9_pcrel_reloc | |
2588 | nds32_elf_hi20_reloc | |
2589 | nds32_elf_relocate_hi20 | |
2590 | nds32_elf_lo12_reloc | |
2591 | nds32_elf_sda15_reloc | |
2592 | nds32_elf_generic_reloc. */ | |
35c08157 KLC |
2593 | |
2594 | /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */ | |
2595 | ||
2596 | static bfd_reloc_status_type | |
fbaf61ad NC |
2597 | nds32_elf_9_pcrel_reloc (bfd * abfd, |
2598 | arelent * reloc_entry, | |
2599 | asymbol * symbol, | |
2600 | void * data, | |
2601 | asection * input_section, | |
2602 | bfd * output_bfd, | |
2603 | char ** error_message ATTRIBUTE_UNUSED) | |
35c08157 KLC |
2604 | { |
2605 | /* This part is from bfd_elf_generic_reloc. */ | |
2606 | if (output_bfd != (bfd *) NULL | |
2607 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2608 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
2609 | { | |
2610 | reloc_entry->address += input_section->output_offset; | |
2611 | return bfd_reloc_ok; | |
2612 | } | |
2613 | ||
2614 | if (output_bfd != NULL) | |
2615 | { | |
2616 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
2617 | return bfd_reloc_continue; | |
2618 | } | |
2619 | ||
2620 | return nds32_elf_do_9_pcrel_reloc (abfd, reloc_entry->howto, | |
2621 | input_section, | |
2622 | data, reloc_entry->address, | |
2623 | symbol->section, | |
2624 | (symbol->value | |
2625 | + symbol->section->output_section->vma | |
2626 | + symbol->section->output_offset), | |
2627 | reloc_entry->addend); | |
2628 | } | |
2629 | ||
2630 | /* Utility to actually perform an R_NDS32_9_PCREL reloc. */ | |
2631 | #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1) | |
2632 | ||
2633 | static bfd_reloc_status_type | |
fbaf61ad NC |
2634 | nds32_elf_do_9_pcrel_reloc (bfd * abfd, |
2635 | reloc_howto_type * howto, | |
2636 | asection * input_section, | |
2637 | bfd_byte * data, | |
2638 | bfd_vma offset, | |
2639 | asection * symbol_section ATTRIBUTE_UNUSED, | |
2640 | bfd_vma symbol_value, | |
2641 | bfd_vma addend) | |
35c08157 KLC |
2642 | { |
2643 | bfd_signed_vma relocation; | |
2644 | unsigned short x; | |
2645 | bfd_reloc_status_type status; | |
2646 | ||
2647 | /* Sanity check the address (offset in section). */ | |
2648 | if (offset > bfd_get_section_limit (abfd, input_section)) | |
2649 | return bfd_reloc_outofrange; | |
2650 | ||
2651 | relocation = symbol_value + addend; | |
2652 | /* Make it pc relative. */ | |
2653 | relocation -= (input_section->output_section->vma | |
2654 | + input_section->output_offset); | |
2655 | /* These jumps mask off the lower two bits of the current address | |
2656 | before doing pcrel calculations. */ | |
2657 | relocation -= (offset & -(bfd_vma) 2); | |
2658 | ||
1c8f6a4d | 2659 | if (relocation < -ACCURATE_8BIT_S1 || relocation >= ACCURATE_8BIT_S1) |
35c08157 KLC |
2660 | status = bfd_reloc_overflow; |
2661 | else | |
2662 | status = bfd_reloc_ok; | |
2663 | ||
2664 | x = bfd_getb16 (data + offset); | |
2665 | ||
2666 | relocation >>= howto->rightshift; | |
2667 | relocation <<= howto->bitpos; | |
2668 | x = (x & ~howto->dst_mask) | |
2669 | | (((x & howto->src_mask) + relocation) & howto->dst_mask); | |
2670 | ||
2671 | bfd_putb16 ((bfd_vma) x, data + offset); | |
2672 | ||
2673 | return status; | |
2674 | } | |
2675 | ||
2676 | /* Handle the R_NDS32_HI20_[SU]LO relocs. | |
2677 | HI20_SLO is for the add3 and load/store with displacement instructions. | |
2678 | HI20 is for the or3 instruction. | |
2679 | For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to | |
2680 | the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then | |
2681 | we must add one to the high 16 bytes (which will get subtracted off when | |
2682 | the low 16 bits are added). | |
2683 | These relocs have to be done in combination with an R_NDS32_LO12 reloc | |
2684 | because there is a carry from the LO12 to the HI20. Here we just save | |
2685 | the information we need; we do the actual relocation when we see the LO12. | |
2686 | This code is copied from the elf32-mips.c. We also support an arbitrary | |
2687 | number of HI20 relocs to be associated with a single LO12 reloc. The | |
2688 | assembler sorts the relocs to ensure each HI20 immediately precedes its | |
2689 | LO12. However if there are multiple copies, the assembler may not find | |
2690 | the real LO12 so it picks the first one it finds. */ | |
2691 | ||
2692 | struct nds32_hi20 | |
2693 | { | |
2694 | struct nds32_hi20 *next; | |
2695 | bfd_byte *addr; | |
2696 | bfd_vma addend; | |
2697 | }; | |
2698 | ||
2699 | static struct nds32_hi20 *nds32_hi20_list; | |
2700 | ||
2701 | static bfd_reloc_status_type | |
fbaf61ad NC |
2702 | nds32_elf_hi20_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
2703 | arelent *reloc_entry, | |
2704 | asymbol *symbol, | |
2705 | void *data, | |
2706 | asection *input_section, | |
2707 | bfd *output_bfd, | |
2708 | char **error_message ATTRIBUTE_UNUSED) | |
35c08157 KLC |
2709 | { |
2710 | bfd_reloc_status_type ret; | |
2711 | bfd_vma relocation; | |
2712 | struct nds32_hi20 *n; | |
2713 | ||
2714 | /* This part is from bfd_elf_generic_reloc. | |
2715 | If we're relocating, and this an external symbol, we don't want | |
2716 | to change anything. */ | |
2717 | if (output_bfd != (bfd *) NULL | |
2718 | && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0) | |
2719 | { | |
2720 | reloc_entry->address += input_section->output_offset; | |
2721 | return bfd_reloc_ok; | |
2722 | } | |
2723 | ||
2724 | /* Sanity check the address (offset in section). */ | |
2725 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
2726 | return bfd_reloc_outofrange; | |
2727 | ||
2728 | ret = bfd_reloc_ok; | |
2729 | if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) | |
2730 | ret = bfd_reloc_undefined; | |
2731 | ||
2732 | if (bfd_is_com_section (symbol->section)) | |
2733 | relocation = 0; | |
2734 | else | |
2735 | relocation = symbol->value; | |
2736 | ||
2737 | relocation += symbol->section->output_section->vma; | |
2738 | relocation += symbol->section->output_offset; | |
2739 | relocation += reloc_entry->addend; | |
2740 | ||
2741 | /* Save the information, and let LO12 do the actual relocation. */ | |
2742 | n = (struct nds32_hi20 *) bfd_malloc ((bfd_size_type) sizeof *n); | |
2743 | if (n == NULL) | |
2744 | return bfd_reloc_outofrange; | |
2745 | ||
2746 | n->addr = (bfd_byte *) data + reloc_entry->address; | |
2747 | n->addend = relocation; | |
2748 | n->next = nds32_hi20_list; | |
2749 | nds32_hi20_list = n; | |
2750 | ||
2751 | if (output_bfd != (bfd *) NULL) | |
2752 | reloc_entry->address += input_section->output_offset; | |
2753 | ||
2754 | return ret; | |
2755 | } | |
2756 | ||
2757 | /* Handle an NDS32 ELF HI20 reloc. */ | |
2758 | ||
2759 | static void | |
2760 | nds32_elf_relocate_hi20 (bfd *input_bfd ATTRIBUTE_UNUSED, | |
fbaf61ad NC |
2761 | int type ATTRIBUTE_UNUSED, |
2762 | Elf_Internal_Rela *relhi, | |
2763 | Elf_Internal_Rela *rello, | |
2764 | bfd_byte *contents, | |
35c08157 KLC |
2765 | bfd_vma addend) |
2766 | { | |
2767 | unsigned long insn; | |
2768 | bfd_vma addlo; | |
2769 | ||
2770 | insn = bfd_getb32 (contents + relhi->r_offset); | |
2771 | ||
2772 | addlo = bfd_getb32 (contents + rello->r_offset); | |
2773 | addlo &= 0xfff; | |
2774 | ||
2775 | addend += ((insn & 0xfffff) << 20) + addlo; | |
2776 | ||
2777 | insn = (insn & 0xfff00000) | ((addend >> 12) & 0xfffff); | |
2778 | bfd_putb32 (insn, contents + relhi->r_offset); | |
2779 | } | |
2780 | ||
2781 | /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit | |
2782 | inplace relocation; this function exists in order to do the | |
2783 | R_NDS32_HI20_[SU]LO relocation described above. */ | |
2784 | ||
2785 | static bfd_reloc_status_type | |
2786 | nds32_elf_lo12_reloc (bfd *input_bfd, arelent *reloc_entry, asymbol *symbol, | |
2787 | void *data, asection *input_section, bfd *output_bfd, | |
2788 | char **error_message) | |
2789 | { | |
2790 | /* This part is from bfd_elf_generic_reloc. | |
2791 | If we're relocating, and this an external symbol, we don't want | |
2792 | to change anything. */ | |
2793 | if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2794 | && reloc_entry->addend == 0) | |
2795 | { | |
2796 | reloc_entry->address += input_section->output_offset; | |
2797 | return bfd_reloc_ok; | |
2798 | } | |
2799 | ||
2800 | if (nds32_hi20_list != NULL) | |
2801 | { | |
2802 | struct nds32_hi20 *l; | |
2803 | ||
2804 | l = nds32_hi20_list; | |
2805 | while (l != NULL) | |
2806 | { | |
2807 | unsigned long insn; | |
2808 | unsigned long val; | |
2809 | unsigned long vallo; | |
2810 | struct nds32_hi20 *next; | |
2811 | ||
2812 | /* Do the HI20 relocation. Note that we actually don't need | |
2813 | to know anything about the LO12 itself, except where to | |
2814 | find the low 12 bits of the addend needed by the LO12. */ | |
2815 | insn = bfd_getb32 (l->addr); | |
2816 | vallo = bfd_getb32 ((bfd_byte *) data + reloc_entry->address); | |
2817 | vallo &= 0xfff; | |
2818 | switch (reloc_entry->howto->type) | |
2819 | { | |
2820 | case R_NDS32_LO12S3: | |
2821 | vallo <<= 3; | |
2822 | break; | |
2823 | ||
2824 | case R_NDS32_LO12S2: | |
2825 | vallo <<= 2; | |
2826 | break; | |
2827 | ||
2828 | case R_NDS32_LO12S1: | |
2829 | vallo <<= 1; | |
2830 | break; | |
2831 | ||
2832 | case R_NDS32_LO12S0: | |
2833 | vallo <<= 0; | |
2834 | break; | |
2835 | } | |
2836 | ||
2837 | val = ((insn & 0xfffff) << 12) + vallo; | |
2838 | val += l->addend; | |
2839 | ||
2840 | insn = (insn & ~(bfd_vma) 0xfffff) | ((val >> 12) & 0xfffff); | |
2841 | bfd_putb32 ((bfd_vma) insn, l->addr); | |
2842 | ||
2843 | next = l->next; | |
2844 | free (l); | |
2845 | l = next; | |
2846 | } | |
2847 | ||
2848 | nds32_hi20_list = NULL; | |
2849 | } | |
2850 | ||
2851 | /* Now do the LO12 reloc in the usual way. | |
2852 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
2853 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
2854 | pass the handling back to bfd_install_relocation which will install | |
2855 | a section relative addend which is wrong. */ | |
2856 | return nds32_elf_generic_reloc (input_bfd, reloc_entry, symbol, data, | |
2857 | input_section, output_bfd, error_message); | |
2858 | } | |
2859 | ||
2860 | /* Do generic partial_inplace relocation. | |
2861 | This is a local replacement for bfd_elf_generic_reloc. */ | |
2862 | ||
2863 | static bfd_reloc_status_type | |
2864 | nds32_elf_generic_reloc (bfd *input_bfd, arelent *reloc_entry, | |
2865 | asymbol *symbol, void *data, asection *input_section, | |
2866 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
2867 | { | |
2868 | bfd_reloc_status_type ret; | |
2869 | bfd_vma relocation; | |
2870 | bfd_byte *inplace_address; | |
2871 | ||
2872 | /* This part is from bfd_elf_generic_reloc. | |
2873 | If we're relocating, and this an external symbol, we don't want | |
2874 | to change anything. */ | |
2875 | if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2876 | && reloc_entry->addend == 0) | |
2877 | { | |
2878 | reloc_entry->address += input_section->output_offset; | |
2879 | return bfd_reloc_ok; | |
2880 | } | |
2881 | ||
2882 | /* Now do the reloc in the usual way. | |
2883 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
2884 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
2885 | pass the handling back to bfd_install_relocation which will install | |
2886 | a section relative addend which is wrong. */ | |
2887 | ||
2888 | /* Sanity check the address (offset in section). */ | |
2889 | if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section)) | |
2890 | return bfd_reloc_outofrange; | |
2891 | ||
2892 | ret = bfd_reloc_ok; | |
2893 | if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) | |
2894 | ret = bfd_reloc_undefined; | |
2895 | ||
2896 | if (bfd_is_com_section (symbol->section) || output_bfd != (bfd *) NULL) | |
2897 | relocation = 0; | |
2898 | else | |
2899 | relocation = symbol->value; | |
2900 | ||
2901 | /* Only do this for a final link. */ | |
2902 | if (output_bfd == (bfd *) NULL) | |
2903 | { | |
2904 | relocation += symbol->section->output_section->vma; | |
2905 | relocation += symbol->section->output_offset; | |
2906 | } | |
2907 | ||
2908 | relocation += reloc_entry->addend; | |
2909 | switch (reloc_entry->howto->type) | |
2910 | { | |
2911 | case R_NDS32_LO12S3: | |
2912 | relocation >>= 3; | |
2913 | break; | |
2914 | ||
2915 | case R_NDS32_LO12S2: | |
2916 | relocation >>= 2; | |
2917 | break; | |
2918 | ||
2919 | case R_NDS32_LO12S1: | |
2920 | relocation >>= 1; | |
2921 | break; | |
2922 | ||
2923 | case R_NDS32_LO12S0: | |
2924 | default: | |
2925 | relocation >>= 0; | |
2926 | break; | |
2927 | } | |
2928 | ||
2929 | inplace_address = (bfd_byte *) data + reloc_entry->address; | |
2930 | ||
2931 | #define DOIT(x) \ | |
2932 | x = ((x & ~reloc_entry->howto->dst_mask) | \ | |
2933 | (((x & reloc_entry->howto->src_mask) + relocation) & \ | |
2934 | reloc_entry->howto->dst_mask)) | |
2935 | ||
2936 | switch (reloc_entry->howto->size) | |
2937 | { | |
2938 | case 1: | |
2939 | { | |
2940 | short x = bfd_getb16 (inplace_address); | |
2941 | ||
2942 | DOIT (x); | |
2943 | bfd_putb16 ((bfd_vma) x, inplace_address); | |
2944 | } | |
2945 | break; | |
2946 | case 2: | |
2947 | { | |
2948 | unsigned long x = bfd_getb32 (inplace_address); | |
2949 | ||
2950 | DOIT (x); | |
2951 | bfd_putb32 ((bfd_vma) x, inplace_address); | |
2952 | } | |
2953 | break; | |
2954 | default: | |
2955 | BFD_ASSERT (0); | |
2956 | } | |
2957 | ||
2958 | if (output_bfd != (bfd *) NULL) | |
2959 | reloc_entry->address += input_section->output_offset; | |
2960 | ||
2961 | return ret; | |
2962 | } | |
2963 | ||
2964 | /* Handle the R_NDS32_SDA15 reloc. | |
2965 | This reloc is used to compute the address of objects in the small data area | |
2966 | and to perform loads and stores from that area. | |
2967 | The lower 15 bits are sign extended and added to the register specified | |
2968 | in the instruction, which is assumed to point to _SDA_BASE_. | |
2969 | ||
2970 | Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on | |
2971 | the access size, this must be taken care of. */ | |
2972 | ||
2973 | static bfd_reloc_status_type | |
2974 | nds32_elf_sda15_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
2975 | asymbol *symbol, void *data ATTRIBUTE_UNUSED, | |
2976 | asection *input_section, bfd *output_bfd, | |
2977 | char **error_message ATTRIBUTE_UNUSED) | |
2978 | { | |
2979 | /* This part is from bfd_elf_generic_reloc. */ | |
2980 | if (output_bfd != (bfd *) NULL | |
2981 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2982 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
2983 | { | |
2984 | reloc_entry->address += input_section->output_offset; | |
2985 | return bfd_reloc_ok; | |
2986 | } | |
2987 | ||
2988 | if (output_bfd != NULL) | |
2989 | { | |
2990 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
2991 | return bfd_reloc_continue; | |
2992 | } | |
2993 | ||
2994 | /* FIXME: not sure what to do here yet. But then again, the linker | |
2995 | may never call us. */ | |
2996 | abort (); | |
2997 | } | |
2998 | ||
2999 | /* nds32_elf_ignore_reloc is the special function for | |
3000 | relocation types which don't need to be relocated | |
3001 | like relaxation relocation types. | |
3002 | This function simply return bfd_reloc_ok when it is | |
3003 | invoked. */ | |
3004 | ||
3005 | static bfd_reloc_status_type | |
3006 | nds32_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
3007 | asymbol *symbol ATTRIBUTE_UNUSED, | |
3008 | void *data ATTRIBUTE_UNUSED, asection *input_section, | |
3009 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
3010 | { | |
3011 | if (output_bfd != NULL) | |
3012 | reloc_entry->address += input_section->output_offset; | |
3013 | ||
3014 | return bfd_reloc_ok; | |
3015 | } | |
3016 | \f | |
3017 | ||
3018 | /* Map BFD reloc types to NDS32 ELF reloc types. */ | |
3019 | ||
3020 | struct nds32_reloc_map_entry | |
3021 | { | |
3022 | bfd_reloc_code_real_type bfd_reloc_val; | |
3023 | unsigned char elf_reloc_val; | |
3024 | }; | |
3025 | ||
3026 | static const struct nds32_reloc_map_entry nds32_reloc_map[] = | |
3027 | { | |
3028 | {BFD_RELOC_NONE, R_NDS32_NONE}, | |
3029 | {BFD_RELOC_16, R_NDS32_16_RELA}, | |
3030 | {BFD_RELOC_32, R_NDS32_32_RELA}, | |
fbaf61ad NC |
3031 | {BFD_RELOC_VTABLE_INHERIT, R_NDS32_RELA_GNU_VTINHERIT}, |
3032 | {BFD_RELOC_VTABLE_ENTRY, R_NDS32_RELA_GNU_VTENTRY}, | |
3033 | ||
35c08157 | 3034 | {BFD_RELOC_NDS32_20, R_NDS32_20_RELA}, |
35c08157 KLC |
3035 | {BFD_RELOC_NDS32_9_PCREL, R_NDS32_9_PCREL_RELA}, |
3036 | {BFD_RELOC_NDS32_WORD_9_PCREL, R_NDS32_WORD_9_PCREL_RELA}, | |
3037 | {BFD_RELOC_NDS32_15_PCREL, R_NDS32_15_PCREL_RELA}, | |
3038 | {BFD_RELOC_NDS32_17_PCREL, R_NDS32_17_PCREL_RELA}, | |
3039 | {BFD_RELOC_NDS32_25_PCREL, R_NDS32_25_PCREL_RELA}, | |
35c08157 KLC |
3040 | {BFD_RELOC_NDS32_HI20, R_NDS32_HI20_RELA}, |
3041 | {BFD_RELOC_NDS32_LO12S3, R_NDS32_LO12S3_RELA}, | |
3042 | {BFD_RELOC_NDS32_LO12S2, R_NDS32_LO12S2_RELA}, | |
3043 | {BFD_RELOC_NDS32_LO12S1, R_NDS32_LO12S1_RELA}, | |
3044 | {BFD_RELOC_NDS32_LO12S0, R_NDS32_LO12S0_RELA}, | |
3045 | {BFD_RELOC_NDS32_LO12S0_ORI, R_NDS32_LO12S0_ORI_RELA}, | |
3046 | {BFD_RELOC_NDS32_SDA15S3, R_NDS32_SDA15S3_RELA}, | |
3047 | {BFD_RELOC_NDS32_SDA15S2, R_NDS32_SDA15S2_RELA}, | |
3048 | {BFD_RELOC_NDS32_SDA15S1, R_NDS32_SDA15S1_RELA}, | |
3049 | {BFD_RELOC_NDS32_SDA15S0, R_NDS32_SDA15S0_RELA}, | |
fbaf61ad NC |
3050 | {BFD_RELOC_NDS32_SDA16S3, R_NDS32_SDA16S3_RELA}, |
3051 | {BFD_RELOC_NDS32_SDA17S2, R_NDS32_SDA17S2_RELA}, | |
3052 | {BFD_RELOC_NDS32_SDA18S1, R_NDS32_SDA18S1_RELA}, | |
3053 | {BFD_RELOC_NDS32_SDA19S0, R_NDS32_SDA19S0_RELA}, | |
35c08157 KLC |
3054 | {BFD_RELOC_NDS32_GOT20, R_NDS32_GOT20}, |
3055 | {BFD_RELOC_NDS32_9_PLTREL, R_NDS32_9_PLTREL}, | |
3056 | {BFD_RELOC_NDS32_25_PLTREL, R_NDS32_25_PLTREL}, | |
3057 | {BFD_RELOC_NDS32_COPY, R_NDS32_COPY}, | |
3058 | {BFD_RELOC_NDS32_GLOB_DAT, R_NDS32_GLOB_DAT}, | |
3059 | {BFD_RELOC_NDS32_JMP_SLOT, R_NDS32_JMP_SLOT}, | |
3060 | {BFD_RELOC_NDS32_RELATIVE, R_NDS32_RELATIVE}, | |
3061 | {BFD_RELOC_NDS32_GOTOFF, R_NDS32_GOTOFF}, | |
fbaf61ad NC |
3062 | {BFD_RELOC_NDS32_GOTOFF_HI20, R_NDS32_GOTOFF_HI20}, |
3063 | {BFD_RELOC_NDS32_GOTOFF_LO12, R_NDS32_GOTOFF_LO12}, | |
35c08157 KLC |
3064 | {BFD_RELOC_NDS32_GOTPC20, R_NDS32_GOTPC20}, |
3065 | {BFD_RELOC_NDS32_GOT_HI20, R_NDS32_GOT_HI20}, | |
3066 | {BFD_RELOC_NDS32_GOT_LO12, R_NDS32_GOT_LO12}, | |
35c08157 KLC |
3067 | {BFD_RELOC_NDS32_GOTPC_HI20, R_NDS32_GOTPC_HI20}, |
3068 | {BFD_RELOC_NDS32_GOTPC_LO12, R_NDS32_GOTPC_LO12}, | |
35c08157 KLC |
3069 | {BFD_RELOC_NDS32_INSN16, R_NDS32_INSN16}, |
3070 | {BFD_RELOC_NDS32_LABEL, R_NDS32_LABEL}, | |
3071 | {BFD_RELOC_NDS32_LONGCALL1, R_NDS32_LONGCALL1}, | |
3072 | {BFD_RELOC_NDS32_LONGCALL2, R_NDS32_LONGCALL2}, | |
3073 | {BFD_RELOC_NDS32_LONGCALL3, R_NDS32_LONGCALL3}, | |
3074 | {BFD_RELOC_NDS32_LONGJUMP1, R_NDS32_LONGJUMP1}, | |
3075 | {BFD_RELOC_NDS32_LONGJUMP2, R_NDS32_LONGJUMP2}, | |
3076 | {BFD_RELOC_NDS32_LONGJUMP3, R_NDS32_LONGJUMP3}, | |
3077 | {BFD_RELOC_NDS32_LOADSTORE, R_NDS32_LOADSTORE}, | |
3078 | {BFD_RELOC_NDS32_9_FIXED, R_NDS32_9_FIXED_RELA}, | |
3079 | {BFD_RELOC_NDS32_15_FIXED, R_NDS32_15_FIXED_RELA}, | |
3080 | {BFD_RELOC_NDS32_17_FIXED, R_NDS32_17_FIXED_RELA}, | |
3081 | {BFD_RELOC_NDS32_25_FIXED, R_NDS32_25_FIXED_RELA}, | |
fbaf61ad NC |
3082 | {BFD_RELOC_NDS32_LONGCALL4, R_NDS32_LONGCALL4}, |
3083 | {BFD_RELOC_NDS32_LONGCALL5, R_NDS32_LONGCALL5}, | |
3084 | {BFD_RELOC_NDS32_LONGCALL6, R_NDS32_LONGCALL6}, | |
3085 | {BFD_RELOC_NDS32_LONGJUMP4, R_NDS32_LONGJUMP4}, | |
3086 | {BFD_RELOC_NDS32_LONGJUMP5, R_NDS32_LONGJUMP5}, | |
3087 | {BFD_RELOC_NDS32_LONGJUMP6, R_NDS32_LONGJUMP6}, | |
3088 | {BFD_RELOC_NDS32_LONGJUMP7, R_NDS32_LONGJUMP7}, | |
35c08157 KLC |
3089 | {BFD_RELOC_NDS32_PLTREL_HI20, R_NDS32_PLTREL_HI20}, |
3090 | {BFD_RELOC_NDS32_PLTREL_LO12, R_NDS32_PLTREL_LO12}, | |
3091 | {BFD_RELOC_NDS32_PLT_GOTREL_HI20, R_NDS32_PLT_GOTREL_HI20}, | |
3092 | {BFD_RELOC_NDS32_PLT_GOTREL_LO12, R_NDS32_PLT_GOTREL_LO12}, | |
35c08157 KLC |
3093 | {BFD_RELOC_NDS32_SDA12S2_DP, R_NDS32_SDA12S2_DP_RELA}, |
3094 | {BFD_RELOC_NDS32_SDA12S2_SP, R_NDS32_SDA12S2_SP_RELA}, | |
3095 | {BFD_RELOC_NDS32_LO12S2_DP, R_NDS32_LO12S2_DP_RELA}, | |
3096 | {BFD_RELOC_NDS32_LO12S2_SP, R_NDS32_LO12S2_SP_RELA}, | |
35c08157 KLC |
3097 | {BFD_RELOC_NDS32_DWARF2_OP1, R_NDS32_DWARF2_OP1_RELA}, |
3098 | {BFD_RELOC_NDS32_DWARF2_OP2, R_NDS32_DWARF2_OP2_RELA}, | |
3099 | {BFD_RELOC_NDS32_DWARF2_LEB, R_NDS32_DWARF2_LEB_RELA}, | |
3100 | {BFD_RELOC_NDS32_UPDATE_TA, R_NDS32_UPDATE_TA_RELA}, | |
fbaf61ad NC |
3101 | {BFD_RELOC_NDS32_PLT_GOTREL_LO20, R_NDS32_PLT_GOTREL_LO20}, |
3102 | {BFD_RELOC_NDS32_PLT_GOTREL_LO15, R_NDS32_PLT_GOTREL_LO15}, | |
3103 | {BFD_RELOC_NDS32_PLT_GOTREL_LO19, R_NDS32_PLT_GOTREL_LO19}, | |
3104 | {BFD_RELOC_NDS32_GOT_LO15, R_NDS32_GOT_LO15}, | |
3105 | {BFD_RELOC_NDS32_GOT_LO19, R_NDS32_GOT_LO19}, | |
3106 | {BFD_RELOC_NDS32_GOTOFF_LO15, R_NDS32_GOTOFF_LO15}, | |
3107 | {BFD_RELOC_NDS32_GOTOFF_LO19, R_NDS32_GOTOFF_LO19}, | |
35c08157 KLC |
3108 | {BFD_RELOC_NDS32_GOT15S2, R_NDS32_GOT15S2_RELA}, |
3109 | {BFD_RELOC_NDS32_GOT17S2, R_NDS32_GOT17S2_RELA}, | |
fbaf61ad NC |
3110 | {BFD_RELOC_NDS32_5, R_NDS32_5_RELA}, |
3111 | {BFD_RELOC_NDS32_10_UPCREL, R_NDS32_10_UPCREL_RELA}, | |
3112 | {BFD_RELOC_NDS32_SDA_FP7U2_RELA, R_NDS32_SDA_FP7U2_RELA}, | |
3113 | {BFD_RELOC_NDS32_RELAX_ENTRY, R_NDS32_RELAX_ENTRY}, | |
3114 | {BFD_RELOC_NDS32_GOT_SUFF, R_NDS32_GOT_SUFF}, | |
3115 | {BFD_RELOC_NDS32_GOTOFF_SUFF, R_NDS32_GOTOFF_SUFF}, | |
3116 | {BFD_RELOC_NDS32_PLT_GOT_SUFF, R_NDS32_PLT_GOT_SUFF}, | |
3117 | {BFD_RELOC_NDS32_MULCALL_SUFF, R_NDS32_MULCALL_SUFF}, | |
35c08157 KLC |
3118 | {BFD_RELOC_NDS32_PTR, R_NDS32_PTR}, |
3119 | {BFD_RELOC_NDS32_PTR_COUNT, R_NDS32_PTR_COUNT}, | |
35c08157 | 3120 | {BFD_RELOC_NDS32_PTR_RESOLVED, R_NDS32_PTR_RESOLVED}, |
35c08157 KLC |
3121 | {BFD_RELOC_NDS32_PLTBLOCK, R_NDS32_PLTBLOCK}, |
3122 | {BFD_RELOC_NDS32_RELAX_REGION_BEGIN, R_NDS32_RELAX_REGION_BEGIN}, | |
3123 | {BFD_RELOC_NDS32_RELAX_REGION_END, R_NDS32_RELAX_REGION_END}, | |
3124 | {BFD_RELOC_NDS32_MINUEND, R_NDS32_MINUEND}, | |
3125 | {BFD_RELOC_NDS32_SUBTRAHEND, R_NDS32_SUBTRAHEND}, | |
35c08157 KLC |
3126 | {BFD_RELOC_NDS32_DIFF8, R_NDS32_DIFF8}, |
3127 | {BFD_RELOC_NDS32_DIFF16, R_NDS32_DIFF16}, | |
3128 | {BFD_RELOC_NDS32_DIFF32, R_NDS32_DIFF32}, | |
3129 | {BFD_RELOC_NDS32_DIFF_ULEB128, R_NDS32_DIFF_ULEB128}, | |
fbaf61ad | 3130 | {BFD_RELOC_NDS32_EMPTY, R_NDS32_EMPTY}, |
35c08157 KLC |
3131 | {BFD_RELOC_NDS32_25_ABS, R_NDS32_25_ABS_RELA}, |
3132 | {BFD_RELOC_NDS32_DATA, R_NDS32_DATA}, | |
3133 | {BFD_RELOC_NDS32_TRAN, R_NDS32_TRAN}, | |
3134 | {BFD_RELOC_NDS32_17IFC_PCREL, R_NDS32_17IFC_PCREL_RELA}, | |
3135 | {BFD_RELOC_NDS32_10IFCU_PCREL, R_NDS32_10IFCU_PCREL_RELA}, | |
fbaf61ad NC |
3136 | /* Not sure. */ |
3137 | {BFD_RELOC_NDS32_TPOFF, R_NDS32_TLS_TPOFF}, | |
3138 | /* Missing: BFD_RELOC_NDS32_GOTTPOFF. */ | |
1c8f6a4d KLC |
3139 | {BFD_RELOC_NDS32_TLS_LE_HI20, R_NDS32_TLS_LE_HI20}, |
3140 | {BFD_RELOC_NDS32_TLS_LE_LO12, R_NDS32_TLS_LE_LO12}, | |
1c8f6a4d KLC |
3141 | {BFD_RELOC_NDS32_TLS_LE_20, R_NDS32_TLS_LE_20}, |
3142 | {BFD_RELOC_NDS32_TLS_LE_15S0, R_NDS32_TLS_LE_15S0}, | |
3143 | {BFD_RELOC_NDS32_TLS_LE_15S1, R_NDS32_TLS_LE_15S1}, | |
3144 | {BFD_RELOC_NDS32_TLS_LE_15S2, R_NDS32_TLS_LE_15S2}, | |
fbaf61ad NC |
3145 | {BFD_RELOC_NDS32_TLS_LE_ADD, R_NDS32_TLS_LE_ADD}, |
3146 | {BFD_RELOC_NDS32_TLS_LE_LS, R_NDS32_TLS_LE_LS}, | |
3147 | {BFD_RELOC_NDS32_TLS_IE_HI20, R_NDS32_TLS_IE_HI20}, | |
3148 | {BFD_RELOC_NDS32_TLS_IE_LO12, R_NDS32_TLS_IE_LO12}, | |
3149 | {BFD_RELOC_NDS32_TLS_IE_LO12S2, R_NDS32_TLS_IE_LO12S2}, | |
3150 | {BFD_RELOC_NDS32_TLS_IEGP_HI20, R_NDS32_TLS_IEGP_HI20}, | |
3151 | {BFD_RELOC_NDS32_TLS_IEGP_LO12, R_NDS32_TLS_IEGP_LO12}, | |
3152 | {BFD_RELOC_NDS32_TLS_IEGP_LO12S2, R_NDS32_TLS_IEGP_LO12S2}, | |
3153 | {BFD_RELOC_NDS32_TLS_IEGP_LW, R_NDS32_TLS_IEGP_LW}, | |
3154 | {BFD_RELOC_NDS32_TLS_DESC, R_NDS32_TLS_DESC}, | |
3155 | {BFD_RELOC_NDS32_TLS_DESC_HI20, R_NDS32_TLS_DESC_HI20}, | |
3156 | {BFD_RELOC_NDS32_TLS_DESC_LO12, R_NDS32_TLS_DESC_LO12}, | |
3157 | {BFD_RELOC_NDS32_TLS_DESC_20, R_NDS32_TLS_DESC_20}, | |
3158 | {BFD_RELOC_NDS32_TLS_DESC_SDA17S2, R_NDS32_TLS_DESC_SDA17S2}, | |
3159 | {BFD_RELOC_NDS32_TLS_DESC_ADD, R_NDS32_TLS_DESC_ADD}, | |
3160 | {BFD_RELOC_NDS32_TLS_DESC_FUNC, R_NDS32_TLS_DESC_FUNC}, | |
3161 | {BFD_RELOC_NDS32_TLS_DESC_CALL, R_NDS32_TLS_DESC_CALL}, | |
3162 | {BFD_RELOC_NDS32_TLS_DESC_MEM, R_NDS32_TLS_DESC_MEM}, | |
3163 | {BFD_RELOC_NDS32_REMOVE, R_NDS32_RELAX_REMOVE}, | |
3164 | {BFD_RELOC_NDS32_GROUP, R_NDS32_RELAX_GROUP}, | |
3165 | {BFD_RELOC_NDS32_LSI, R_NDS32_LSI}, | |
35c08157 KLC |
3166 | }; |
3167 | ||
3168 | /* Patch tag. */ | |
3169 | ||
3170 | static reloc_howto_type * | |
3171 | bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
3172 | const char *r_name) | |
3173 | { | |
3174 | unsigned int i; | |
3175 | ||
3176 | for (i = 0; i < ARRAY_SIZE (nds32_elf_howto_table); i++) | |
3177 | if (nds32_elf_howto_table[i].name != NULL | |
3178 | && strcasecmp (nds32_elf_howto_table[i].name, r_name) == 0) | |
3179 | return &nds32_elf_howto_table[i]; | |
3180 | ||
3181 | for (i = 0; i < ARRAY_SIZE (nds32_elf_relax_howto_table); i++) | |
3182 | if (nds32_elf_relax_howto_table[i].name != NULL | |
3183 | && strcasecmp (nds32_elf_relax_howto_table[i].name, r_name) == 0) | |
3184 | return &nds32_elf_relax_howto_table[i]; | |
3185 | ||
3186 | return NULL; | |
3187 | } | |
3188 | ||
3189 | static reloc_howto_type * | |
3190 | bfd_elf32_bfd_reloc_type_table_lookup (enum elf_nds32_reloc_type code) | |
3191 | { | |
3192 | if (code < R_NDS32_RELAX_ENTRY) | |
3193 | { | |
3194 | BFD_ASSERT (code < ARRAY_SIZE (nds32_elf_howto_table)); | |
3195 | return &nds32_elf_howto_table[code]; | |
3196 | } | |
3197 | else | |
3198 | { | |
fbaf61ad NC |
3199 | if ((size_t) (code - R_NDS32_RELAX_ENTRY) |
3200 | >= ARRAY_SIZE (nds32_elf_relax_howto_table)) | |
3201 | { | |
3202 | int i = code; | |
3203 | i += 1; | |
3204 | } | |
3205 | ||
35c08157 KLC |
3206 | BFD_ASSERT ((size_t) (code - R_NDS32_RELAX_ENTRY) |
3207 | < ARRAY_SIZE (nds32_elf_relax_howto_table)); | |
3208 | return &nds32_elf_relax_howto_table[code - R_NDS32_RELAX_ENTRY]; | |
3209 | } | |
3210 | } | |
3211 | ||
3212 | static reloc_howto_type * | |
3213 | bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
3214 | bfd_reloc_code_real_type code) | |
3215 | { | |
3216 | unsigned int i; | |
3217 | ||
3218 | for (i = 0; i < ARRAY_SIZE (nds32_reloc_map); i++) | |
3219 | { | |
3220 | if (nds32_reloc_map[i].bfd_reloc_val == code) | |
3221 | return bfd_elf32_bfd_reloc_type_table_lookup | |
fbaf61ad | 3222 | (nds32_reloc_map[i].elf_reloc_val); |
35c08157 KLC |
3223 | } |
3224 | ||
3225 | return NULL; | |
3226 | } | |
3227 | ||
3228 | /* Set the howto pointer for an NDS32 ELF reloc. */ | |
3229 | ||
f3185997 NC |
3230 | static bfd_boolean |
3231 | nds32_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, | |
35c08157 KLC |
3232 | Elf_Internal_Rela *dst) |
3233 | { | |
3234 | enum elf_nds32_reloc_type r_type; | |
3235 | ||
3236 | r_type = ELF32_R_TYPE (dst->r_info); | |
5860e3f8 NC |
3237 | if (r_type > R_NDS32_GNU_VTENTRY) |
3238 | { | |
695344c0 | 3239 | /* xgettext:c-format */ |
0aa13fee AM |
3240 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
3241 | abfd, r_type); | |
f3185997 NC |
3242 | bfd_set_error (bfd_error_bad_value); |
3243 | return FALSE; | |
5860e3f8 | 3244 | } |
fbaf61ad NC |
3245 | |
3246 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) <= R_NDS32_GNU_VTENTRY); | |
35c08157 | 3247 | cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); |
f3185997 | 3248 | return TRUE; |
35c08157 KLC |
3249 | } |
3250 | ||
f3185997 | 3251 | static bfd_boolean |
35c08157 KLC |
3252 | nds32_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
3253 | Elf_Internal_Rela *dst) | |
3254 | { | |
f3185997 NC |
3255 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); |
3256 | ||
3257 | if ((r_type == R_NDS32_NONE) | |
3258 | || ((r_type > R_NDS32_GNU_VTENTRY) | |
3259 | && (r_type < R_NDS32_max))) | |
3260 | { | |
3261 | cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); | |
3262 | return TRUE; | |
3263 | } | |
3264 | ||
3265 | /* xgettext:c-format */ | |
3266 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type); | |
3267 | bfd_set_error (bfd_error_bad_value); | |
fbaf61ad | 3268 | return FALSE; |
35c08157 KLC |
3269 | } |
3270 | ||
3271 | /* Support for core dump NOTE sections. | |
3272 | Reference to include/linux/elfcore.h in Linux. */ | |
3273 | ||
3274 | static bfd_boolean | |
3275 | nds32_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
3276 | { | |
3277 | int offset; | |
3278 | size_t size; | |
3279 | ||
3280 | switch (note->descsz) | |
3281 | { | |
3282 | case 0x114: | |
fbaf61ad | 3283 | /* Linux/NDS32 32-bit, ABI1. */ |
35c08157 KLC |
3284 | |
3285 | /* pr_cursig */ | |
3286 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
3287 | ||
3288 | /* pr_pid */ | |
3289 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); | |
3290 | ||
3291 | /* pr_reg */ | |
3292 | offset = 72; | |
3293 | size = 200; | |
3294 | break; | |
3295 | ||
3296 | case 0xfc: | |
fbaf61ad | 3297 | /* Linux/NDS32 32-bit. */ |
35c08157 KLC |
3298 | |
3299 | /* pr_cursig */ | |
3300 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
3301 | ||
3302 | /* pr_pid */ | |
3303 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); | |
3304 | ||
3305 | /* pr_reg */ | |
3306 | offset = 72; | |
3307 | size = 176; | |
3308 | break; | |
3309 | ||
3310 | default: | |
3311 | return FALSE; | |
3312 | } | |
3313 | ||
3314 | /* Make a ".reg" section. */ | |
3315 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
3316 | size, note->descpos + offset); | |
3317 | } | |
3318 | ||
3319 | static bfd_boolean | |
3320 | nds32_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
3321 | { | |
3322 | switch (note->descsz) | |
3323 | { | |
3324 | case 124: | |
fbaf61ad | 3325 | /* Linux/NDS32. */ |
35c08157 KLC |
3326 | |
3327 | /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */ | |
3328 | elf_tdata (abfd)->core->program = | |
3329 | _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
3330 | elf_tdata (abfd)->core->command = | |
3331 | _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
2b804145 | 3332 | break; |
35c08157 KLC |
3333 | |
3334 | default: | |
3335 | return FALSE; | |
3336 | } | |
3337 | ||
3338 | /* Note that for some reason, a spurious space is tacked | |
3339 | onto the end of the args in some (at least one anyway) | |
3340 | implementations, so strip it off if it exists. */ | |
3341 | { | |
3342 | char *command = elf_tdata (abfd)->core->command; | |
3343 | int n = strlen (command); | |
3344 | ||
3345 | if (0 < n && command[n - 1] == ' ') | |
3346 | command[n - 1] = '\0'; | |
3347 | } | |
3348 | ||
3349 | return TRUE; | |
3350 | } | |
3351 | ||
3352 | /* Hook called by the linker routine which adds symbols from an object | |
3353 | file. We must handle the special NDS32 section numbers here. | |
3354 | We also keep watching for whether we need to create the sdata special | |
3355 | linker sections. */ | |
3356 | ||
3357 | static bfd_boolean | |
3358 | nds32_elf_add_symbol_hook (bfd *abfd, | |
3359 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3360 | Elf_Internal_Sym *sym, | |
3361 | const char **namep ATTRIBUTE_UNUSED, | |
3362 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3363 | asection **secp, bfd_vma *valp) | |
3364 | { | |
3365 | switch (sym->st_shndx) | |
3366 | { | |
3367 | case SHN_COMMON: | |
3368 | /* Common symbols less than the GP size are automatically | |
3369 | treated as SHN_MIPS_SCOMMON symbols. */ | |
3370 | if (sym->st_size > elf_gp_size (abfd) | |
3371 | || ELF_ST_TYPE (sym->st_info) == STT_TLS) | |
3372 | break; | |
3373 | ||
3374 | /* st_value is the alignemnt constraint. | |
3375 | That might be its actual size if it is an array or structure. */ | |
3376 | switch (sym->st_value) | |
3377 | { | |
3378 | case 1: | |
3379 | *secp = bfd_make_section_old_way (abfd, ".scommon_b"); | |
3380 | break; | |
3381 | case 2: | |
3382 | *secp = bfd_make_section_old_way (abfd, ".scommon_h"); | |
3383 | break; | |
3384 | case 4: | |
3385 | *secp = bfd_make_section_old_way (abfd, ".scommon_w"); | |
3386 | break; | |
3387 | case 8: | |
3388 | *secp = bfd_make_section_old_way (abfd, ".scommon_d"); | |
3389 | break; | |
3390 | default: | |
3391 | return TRUE; | |
3392 | } | |
3393 | ||
3394 | (*secp)->flags |= SEC_IS_COMMON; | |
3395 | *valp = sym->st_size; | |
3396 | break; | |
3397 | } | |
3398 | ||
3399 | return TRUE; | |
3400 | } | |
3401 | ||
35c08157 KLC |
3402 | /* This function can figure out the best location for a base register to access |
3403 | data relative to this base register | |
3404 | INPUT: | |
3405 | sda_d0: size of first DOUBLE WORD data section | |
3406 | sda_w0: size of first WORD data section | |
3407 | sda_h0: size of first HALF WORD data section | |
3408 | sda_b : size of BYTE data section | |
3409 | sda_hi: size of second HALF WORD data section | |
3410 | sda_w1: size of second WORD data section | |
3411 | sda_d1: size of second DOUBLE WORD data section | |
3412 | OUTPUT: | |
3413 | offset (always positive) from the beginning of sda_d0 if OK | |
3414 | a negative error value if fail | |
3415 | NOTE: | |
3416 | these 7 sections have to be located back to back if exist | |
3417 | a pass in 0 value for non-existing section */ | |
3418 | ||
3419 | /* Due to the interpretation of simm15 field of load/store depending on | |
3420 | data accessing size, the organization of base register relative data shall | |
3421 | like the following figure | |
3422 | ------------------------------------------- | |
3423 | | DOUBLE WORD sized data (range +/- 128K) | |
3424 | ------------------------------------------- | |
3425 | | WORD sized data (range +/- 64K) | |
3426 | ------------------------------------------- | |
3427 | | HALF WORD sized data (range +/- 32K) | |
3428 | ------------------------------------------- | |
3429 | | BYTE sized data (range +/- 16K) | |
3430 | ------------------------------------------- | |
3431 | | HALF WORD sized data (range +/- 32K) | |
3432 | ------------------------------------------- | |
3433 | | WORD sized data (range +/- 64K) | |
3434 | ------------------------------------------- | |
3435 | | DOUBLE WORD sized data (range +/- 128K) | |
3436 | ------------------------------------------- | |
3437 | Its base register shall be set to access these data freely. */ | |
3438 | ||
3439 | /* We have to figure out the SDA_BASE value, so that we can adjust the | |
3440 | symbol value correctly. We look up the symbol _SDA_BASE_ in the output | |
3441 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
3442 | target data. We don't need to adjust the symbol value for an | |
3443 | external symbol if we are producing relocatable output. */ | |
3444 | ||
3445 | static asection *sda_rela_sec = NULL; | |
3446 | ||
1c8f6a4d | 3447 | #define SDA_SECTION_NUM 10 |
35c08157 KLC |
3448 | |
3449 | static bfd_reloc_status_type | |
fbaf61ad NC |
3450 | nds32_elf_final_sda_base (bfd * output_bfd, |
3451 | struct bfd_link_info * info, | |
3452 | bfd_vma * psb, | |
3453 | bfd_boolean add_symbol) | |
35c08157 KLC |
3454 | { |
3455 | int relax_fp_as_gp; | |
3456 | struct elf_nds32_link_hash_table *table; | |
3457 | struct bfd_link_hash_entry *h, *h2; | |
1c8f6a4d | 3458 | long unsigned int total = 0; |
fbaf61ad NC |
3459 | asection *first = NULL, *final = NULL, *temp; |
3460 | bfd_vma sda_base = 0; | |
35c08157 KLC |
3461 | |
3462 | h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE); | |
fbaf61ad NC |
3463 | if (!h || (h->type != bfd_link_hash_defined |
3464 | && h->type != bfd_link_hash_defweak)) | |
35c08157 | 3465 | { |
35c08157 KLC |
3466 | /* The first section must be 4-byte aligned to promise _SDA_BASE_ being |
3467 | 4 byte-aligned. Therefore, it has to set the first section ".data" | |
3468 | 4 byte-aligned. */ | |
3469 | static const char sec_name[SDA_SECTION_NUM][10] = | |
3470 | { | |
3471 | ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b", | |
1c8f6a4d | 3472 | ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d" |
35c08157 KLC |
3473 | }; |
3474 | size_t i = 0; | |
3475 | ||
3476 | if (output_bfd->sections == NULL) | |
3477 | { | |
3478 | *psb = elf_gp (output_bfd); | |
3479 | return bfd_reloc_ok; | |
3480 | } | |
3481 | ||
3482 | /* Get the first and final section. */ | |
fbaf61ad | 3483 | while (i < ARRAY_SIZE (sec_name)) |
35c08157 KLC |
3484 | { |
3485 | temp = bfd_get_section_by_name (output_bfd, sec_name[i]); | |
3486 | if (temp && !first && (temp->size != 0 || temp->rawsize != 0)) | |
3487 | first = temp; | |
3488 | if (temp && (temp->size != 0 || temp->rawsize != 0)) | |
3489 | final = temp; | |
1c8f6a4d KLC |
3490 | |
3491 | /* Summarize the sections in order to check if joining .bss. */ | |
3492 | if (temp && temp->size != 0) | |
3493 | total += temp->size; | |
3494 | else if (temp && temp->rawsize != 0) | |
3495 | total += temp->rawsize; | |
3496 | ||
35c08157 KLC |
3497 | i++; |
3498 | } | |
3499 | ||
1c8f6a4d KLC |
3500 | /* Check .bss size. */ |
3501 | temp = bfd_get_section_by_name (output_bfd, ".bss"); | |
3502 | if (temp) | |
3503 | { | |
3504 | if (temp->size != 0) | |
3505 | total += temp->size; | |
3506 | else if (temp->rawsize != 0) | |
3507 | total += temp->rawsize; | |
3508 | ||
3509 | if (total < 0x80000) | |
3510 | { | |
3511 | if (!first && (temp->size != 0 || temp->rawsize != 0)) | |
3512 | first = temp; | |
3513 | if ((temp->size != 0 || temp->rawsize != 0)) | |
3514 | final = temp; | |
3515 | } | |
3516 | } | |
3517 | ||
35c08157 KLC |
3518 | if (first && final) |
3519 | { | |
3520 | /* The middle of data region. */ | |
1c8f6a4d | 3521 | sda_base = final->vma / 2 + final->rawsize / 2 + first->vma / 2; |
35c08157 KLC |
3522 | |
3523 | /* Find the section sda_base located. */ | |
3524 | i = 0; | |
fbaf61ad | 3525 | while (i < ARRAY_SIZE (sec_name)) |
35c08157 KLC |
3526 | { |
3527 | final = bfd_get_section_by_name (output_bfd, sec_name[i]); | |
3528 | if (final && (final->size != 0 || final->rawsize != 0) | |
3529 | && sda_base >= final->vma) | |
3530 | { | |
3531 | first = final; | |
3532 | i++; | |
3533 | } | |
3534 | else | |
3535 | break; | |
3536 | } | |
3537 | } | |
3538 | else | |
3539 | { | |
fbaf61ad NC |
3540 | /* If there is not any default data section in output bfd, try to find |
3541 | the first data section. If no data section be found, just simplily | |
3542 | choose the first output section. */ | |
3543 | temp = output_bfd->sections; | |
3544 | while (temp) | |
3545 | { | |
3546 | if (temp->flags & SEC_ALLOC | |
3547 | && (((temp->flags & SEC_DATA) | |
3548 | && ((temp->flags & SEC_READONLY) == 0)) | |
3549 | || (temp->flags & SEC_LOAD) == 0) | |
3550 | && (temp->size != 0 || temp->rawsize != 0)) | |
3551 | { | |
3552 | if (!first) | |
3553 | first = temp; | |
3554 | final = temp; | |
3555 | } | |
3556 | temp = temp->next; | |
3557 | } | |
3558 | ||
3559 | /* There is no data or bss section. */ | |
3560 | if (!first || (first->size == 0 && first->rawsize == 0)) | |
3561 | { | |
3562 | first = output_bfd->sections; | |
3563 | while (first && first->size == 0 && first->rawsize == 0) | |
3564 | first = first->next; | |
3565 | } | |
3566 | ||
3567 | /* There is no concrete section. */ | |
35c08157 KLC |
3568 | if (!first) |
3569 | { | |
3570 | *psb = elf_gp (output_bfd); | |
3571 | return bfd_reloc_ok; | |
3572 | } | |
fbaf61ad NC |
3573 | |
3574 | if (final && (final->vma + final->rawsize - first->vma) <= 0x4000) | |
3575 | sda_base = final->vma / 2 + final->rawsize / 2 + first->vma / 2; | |
3576 | else | |
3577 | sda_base = first->vma + 0x2000; | |
35c08157 KLC |
3578 | } |
3579 | ||
3580 | sda_base -= first->vma; | |
3581 | sda_base = sda_base & (~7); | |
3582 | ||
3583 | if (!_bfd_generic_link_add_one_symbol | |
fbaf61ad NC |
3584 | (info, output_bfd, "_SDA_BASE_", BSF_GLOBAL | BSF_WEAK, first, |
3585 | (bfd_vma) sda_base, (const char *) NULL, FALSE, | |
3586 | get_elf_backend_data (output_bfd)->collect, &h)) | |
35c08157 KLC |
3587 | return FALSE; |
3588 | ||
3589 | sda_rela_sec = first; | |
fbaf61ad | 3590 | } |
35c08157 | 3591 | |
fbaf61ad NC |
3592 | /* Set _FP_BASE_ to _SDA_BASE_. */ |
3593 | table = nds32_elf_hash_table (info); | |
3594 | relax_fp_as_gp = table->relax_fp_as_gp; | |
3595 | h2 = bfd_link_hash_lookup (info->hash, FP_BASE_NAME, FALSE, FALSE, FALSE); | |
3596 | /* _SDA_BASE_ is difined in linker script. */ | |
3597 | if (!first) | |
3598 | { | |
3599 | first = h->u.def.section; | |
3600 | sda_base = h->u.def.value; | |
3601 | } | |
3602 | ||
3603 | if (relax_fp_as_gp && h2 | |
3604 | && (h2->type == bfd_link_hash_undefweak | |
3605 | || h2->type == bfd_link_hash_undefined)) | |
3606 | { | |
3607 | /* Define a weak FP_BASE_NAME here to prevent the undefined symbol. | |
3608 | And set FP equal to SDA_BASE to do relaxation for | |
3609 | la $fp, _FP_BASE_. */ | |
3610 | if (!_bfd_generic_link_add_one_symbol | |
3611 | (info, output_bfd, FP_BASE_NAME, BSF_GLOBAL | BSF_WEAK, | |
3612 | first, sda_base, (const char *) NULL, | |
3613 | FALSE, get_elf_backend_data (output_bfd)->collect, &h2)) | |
3614 | return FALSE; | |
35c08157 KLC |
3615 | } |
3616 | ||
535b785f | 3617 | if (add_symbol) |
35c08157 KLC |
3618 | { |
3619 | if (h) | |
3620 | { | |
3621 | /* Now set gp. */ | |
3622 | elf_gp (output_bfd) = (h->u.def.value | |
3623 | + h->u.def.section->output_section->vma | |
3624 | + h->u.def.section->output_offset); | |
3625 | } | |
3626 | else | |
3627 | { | |
38f14ab8 | 3628 | _bfd_error_handler (_("error: can't find symbol: %s"), "_SDA_BASE_"); |
35c08157 KLC |
3629 | return bfd_reloc_dangerous; |
3630 | } | |
3631 | } | |
3632 | ||
fbaf61ad NC |
3633 | *psb = h->u.def.value |
3634 | + h->u.def.section->output_section->vma | |
3635 | + h->u.def.section->output_offset; | |
35c08157 KLC |
3636 | return bfd_reloc_ok; |
3637 | } | |
3638 | \f | |
3639 | ||
3640 | /* Return size of a PLT entry. */ | |
3641 | #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE | |
3642 | ||
35c08157 KLC |
3643 | /* Create an entry in an nds32 ELF linker hash table. */ |
3644 | ||
3645 | static struct bfd_hash_entry * | |
3646 | nds32_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
3647 | struct bfd_hash_table *table, | |
3648 | const char *string) | |
3649 | { | |
3650 | struct elf_nds32_link_hash_entry *ret; | |
3651 | ||
3652 | ret = (struct elf_nds32_link_hash_entry *) entry; | |
3653 | ||
3654 | /* Allocate the structure if it has not already been allocated by a | |
3655 | subclass. */ | |
3656 | if (ret == NULL) | |
3657 | ret = (struct elf_nds32_link_hash_entry *) | |
3658 | bfd_hash_allocate (table, sizeof (struct elf_nds32_link_hash_entry)); | |
3659 | ||
3660 | if (ret == NULL) | |
3661 | return (struct bfd_hash_entry *) ret; | |
3662 | ||
3663 | /* Call the allocation method of the superclass. */ | |
3664 | ret = (struct elf_nds32_link_hash_entry *) | |
3665 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
3666 | ||
3667 | if (ret != NULL) | |
3668 | { | |
3669 | struct elf_nds32_link_hash_entry *eh; | |
3670 | ||
3671 | eh = (struct elf_nds32_link_hash_entry *) ret; | |
3672 | eh->dyn_relocs = NULL; | |
1c8f6a4d | 3673 | eh->tls_type = GOT_UNKNOWN; |
fbaf61ad | 3674 | eh->offset_to_gp = 0; |
35c08157 KLC |
3675 | } |
3676 | ||
3677 | return (struct bfd_hash_entry *) ret; | |
3678 | } | |
3679 | ||
3680 | /* Create an nds32 ELF linker hash table. */ | |
3681 | ||
3682 | static struct bfd_link_hash_table * | |
3683 | nds32_elf_link_hash_table_create (bfd *abfd) | |
3684 | { | |
3685 | struct elf_nds32_link_hash_table *ret; | |
3686 | ||
986f0783 | 3687 | size_t amt = sizeof (struct elf_nds32_link_hash_table); |
35c08157 KLC |
3688 | |
3689 | ret = (struct elf_nds32_link_hash_table *) bfd_zmalloc (amt); | |
3690 | if (ret == NULL) | |
3691 | return NULL; | |
3692 | ||
fbaf61ad | 3693 | /* Patch tag. */ |
35c08157 KLC |
3694 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
3695 | nds32_elf_link_hash_newfunc, | |
3696 | sizeof (struct elf_nds32_link_hash_entry), | |
3697 | NDS32_ELF_DATA)) | |
3698 | { | |
3699 | free (ret); | |
3700 | return NULL; | |
3701 | } | |
3702 | ||
fbaf61ad NC |
3703 | ret->sdynbss = NULL; |
3704 | ret->srelbss = NULL; | |
3705 | ret->sym_ld_script = NULL; | |
3706 | ||
35c08157 KLC |
3707 | return &ret->root.root; |
3708 | } | |
3709 | ||
fbaf61ad NC |
3710 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up |
3711 | shortcuts to them in our hash table. */ | |
3712 | ||
3713 | static bfd_boolean | |
3714 | create_got_section (bfd *dynobj, struct bfd_link_info *info) | |
3715 | { | |
3716 | struct elf_link_hash_table *ehtab; | |
3717 | ||
3718 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
3719 | return FALSE; | |
3720 | ||
3721 | ehtab = elf_hash_table (info); | |
3722 | ehtab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
3723 | ehtab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
3724 | if (!ehtab->sgot || !ehtab->sgotplt) | |
3725 | abort (); | |
3726 | ||
3727 | /* _bfd_elf_create_got_section will create it for us. */ | |
3728 | ehtab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
3729 | if (ehtab->srelgot == NULL | |
fd361982 | 3730 | || !bfd_set_section_flags (ehtab->srelgot, |
fbaf61ad NC |
3731 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
3732 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
3733 | | SEC_READONLY)) | |
fd361982 | 3734 | || !bfd_set_section_alignment (ehtab->srelgot, 2)) |
fbaf61ad NC |
3735 | return FALSE; |
3736 | ||
3737 | return TRUE; | |
3738 | } | |
3739 | ||
35c08157 KLC |
3740 | /* Create dynamic sections when linking against a dynamic object. */ |
3741 | ||
3742 | static bfd_boolean | |
3743 | nds32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
3744 | { | |
fbaf61ad | 3745 | struct elf_link_hash_table *ehtab; |
35c08157 KLC |
3746 | struct elf_nds32_link_hash_table *htab; |
3747 | flagword flags, pltflags; | |
3748 | register asection *s; | |
3749 | const struct elf_backend_data *bed; | |
3750 | int ptralign = 2; /* 32-bit */ | |
fbaf61ad NC |
3751 | const char *secname; |
3752 | char *relname; | |
3753 | flagword secflags; | |
3754 | asection *sec; | |
35c08157 KLC |
3755 | |
3756 | bed = get_elf_backend_data (abfd); | |
fbaf61ad | 3757 | ehtab = elf_hash_table (info); |
35c08157 KLC |
3758 | htab = nds32_elf_hash_table (info); |
3759 | ||
3760 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
3761 | .rel[a].bss sections. */ | |
3762 | ||
3763 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3764 | | SEC_LINKER_CREATED); | |
3765 | ||
3766 | pltflags = flags; | |
3767 | pltflags |= SEC_CODE; | |
3768 | if (bed->plt_not_loaded) | |
3769 | pltflags &= ~(SEC_LOAD | SEC_HAS_CONTENTS); | |
3770 | if (bed->plt_readonly) | |
3771 | pltflags |= SEC_READONLY; | |
3772 | ||
3773 | s = bfd_make_section (abfd, ".plt"); | |
fbaf61ad | 3774 | ehtab->splt = s; |
35c08157 | 3775 | if (s == NULL |
fd361982 AM |
3776 | || !bfd_set_section_flags (s, pltflags) |
3777 | || !bfd_set_section_alignment (s, bed->plt_alignment)) | |
35c08157 KLC |
3778 | return FALSE; |
3779 | ||
3780 | if (bed->want_plt_sym) | |
3781 | { | |
3782 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
3783 | .plt section. */ | |
3784 | struct bfd_link_hash_entry *bh = NULL; | |
3785 | struct elf_link_hash_entry *h; | |
3786 | ||
3787 | if (!(_bfd_generic_link_add_one_symbol | |
3788 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
3789 | (bfd_vma) 0, (const char *) NULL, FALSE, | |
3790 | get_elf_backend_data (abfd)->collect, &bh))) | |
3791 | return FALSE; | |
3792 | ||
3793 | h = (struct elf_link_hash_entry *) bh; | |
3794 | h->def_regular = 1; | |
3795 | h->type = STT_OBJECT; | |
3796 | ||
0e1862bb | 3797 | if (bfd_link_pic (info) && !bfd_elf_link_record_dynamic_symbol (info, h)) |
35c08157 KLC |
3798 | return FALSE; |
3799 | } | |
3800 | ||
3801 | s = bfd_make_section (abfd, | |
3802 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); | |
fbaf61ad | 3803 | ehtab->srelplt = s; |
35c08157 | 3804 | if (s == NULL |
fd361982 AM |
3805 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3806 | || !bfd_set_section_alignment (s, ptralign)) | |
35c08157 KLC |
3807 | return FALSE; |
3808 | ||
fbaf61ad | 3809 | if (ehtab->sgot == NULL && !create_got_section (abfd, info)) |
35c08157 KLC |
3810 | return FALSE; |
3811 | ||
fbaf61ad NC |
3812 | for (sec = abfd->sections; sec; sec = sec->next) |
3813 | { | |
fd361982 | 3814 | secflags = bfd_section_flags (sec); |
fbaf61ad NC |
3815 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) |
3816 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) | |
3817 | continue; | |
fd361982 | 3818 | secname = bfd_section_name (sec); |
fbaf61ad NC |
3819 | relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6); |
3820 | strcpy (relname, ".rela"); | |
3821 | strcat (relname, secname); | |
3822 | if (bfd_get_section_by_name (abfd, secname)) | |
3823 | continue; | |
3824 | s = bfd_make_section (abfd, relname); | |
3825 | if (s == NULL | |
fd361982 AM |
3826 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3827 | || !bfd_set_section_alignment (s, ptralign)) | |
fbaf61ad NC |
3828 | return FALSE; |
3829 | } | |
35c08157 KLC |
3830 | |
3831 | if (bed->want_dynbss) | |
3832 | { | |
3833 | /* The .dynbss section is a place to put symbols which are defined | |
3834 | by dynamic objects, are referenced by regular objects, and are | |
3835 | not functions. We must allocate space for them in the process | |
3836 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
3837 | initialize them at run time. The linker script puts the .dynbss | |
3838 | section into the .bss section of the final image. */ | |
3839 | s = bfd_make_section (abfd, ".dynbss"); | |
3840 | htab->sdynbss = s; | |
3841 | if (s == NULL | |
fd361982 | 3842 | || !bfd_set_section_flags (s, SEC_ALLOC | SEC_LINKER_CREATED)) |
35c08157 KLC |
3843 | return FALSE; |
3844 | /* The .rel[a].bss section holds copy relocs. This section is not | |
3845 | normally needed. We need to create it here, though, so that the | |
3846 | linker will map it to an output section. We can't just create it | |
3847 | only if we need it, because we will not know whether we need it | |
3848 | until we have seen all the input files, and the first time the | |
3849 | main linker code calls BFD after examining all the input files | |
3850 | (size_dynamic_sections) the input sections have already been | |
3851 | mapped to the output sections. If the section turns out not to | |
3852 | be needed, we can discard it later. We will never need this | |
3853 | section when generating a shared object, since they do not use | |
3854 | copy relocs. */ | |
0e1862bb | 3855 | if (!bfd_link_pic (info)) |
35c08157 KLC |
3856 | { |
3857 | s = bfd_make_section (abfd, (bed->default_use_rela_p | |
3858 | ? ".rela.bss" : ".rel.bss")); | |
3859 | htab->srelbss = s; | |
3860 | if (s == NULL | |
fd361982 AM |
3861 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3862 | || !bfd_set_section_alignment (s, ptralign)) | |
35c08157 KLC |
3863 | return FALSE; |
3864 | } | |
3865 | } | |
3866 | ||
3867 | return TRUE; | |
3868 | } | |
3869 | ||
3870 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
3871 | static void | |
3872 | nds32_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
3873 | struct elf_link_hash_entry *dir, | |
3874 | struct elf_link_hash_entry *ind) | |
3875 | { | |
3876 | struct elf_nds32_link_hash_entry *edir, *eind; | |
3877 | ||
3878 | edir = (struct elf_nds32_link_hash_entry *) dir; | |
3879 | eind = (struct elf_nds32_link_hash_entry *) ind; | |
3880 | ||
3881 | if (eind->dyn_relocs != NULL) | |
3882 | { | |
3883 | if (edir->dyn_relocs != NULL) | |
3884 | { | |
3bf083ed AM |
3885 | struct elf_dyn_relocs **pp; |
3886 | struct elf_dyn_relocs *p; | |
35c08157 KLC |
3887 | |
3888 | if (ind->root.type == bfd_link_hash_indirect) | |
3889 | abort (); | |
3890 | ||
3891 | /* Add reloc counts against the weak sym to the strong sym | |
3892 | list. Merge any entries against the same section. */ | |
3893 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
3894 | { | |
3bf083ed | 3895 | struct elf_dyn_relocs *q; |
35c08157 KLC |
3896 | |
3897 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3898 | if (q->sec == p->sec) | |
3899 | { | |
3900 | q->pc_count += p->pc_count; | |
3901 | q->count += p->count; | |
3902 | *pp = p->next; | |
3903 | break; | |
3904 | } | |
3905 | if (q == NULL) | |
3906 | pp = &p->next; | |
3907 | } | |
3908 | *pp = edir->dyn_relocs; | |
3909 | } | |
3910 | ||
3911 | edir->dyn_relocs = eind->dyn_relocs; | |
3912 | eind->dyn_relocs = NULL; | |
3913 | } | |
3914 | ||
fbaf61ad NC |
3915 | if (ind->root.type == bfd_link_hash_indirect) |
3916 | { | |
3917 | if (dir->got.refcount <= 0) | |
3918 | { | |
3919 | edir->tls_type = eind->tls_type; | |
3920 | eind->tls_type = GOT_UNKNOWN; | |
3921 | } | |
3922 | } | |
3923 | ||
35c08157 KLC |
3924 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
3925 | } | |
3926 | \f | |
fbaf61ad | 3927 | |
63c1f59d AM |
3928 | /* Find dynamic relocs for H that apply to read-only sections. */ |
3929 | ||
3930 | static asection * | |
3931 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
3932 | { | |
3bf083ed | 3933 | struct elf_dyn_relocs *p; |
63c1f59d AM |
3934 | |
3935 | for (p = elf32_nds32_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
3936 | { | |
3937 | asection *s = p->sec->output_section; | |
3938 | ||
3939 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
3940 | return p->sec; | |
3941 | } | |
3942 | return NULL; | |
3943 | } | |
35c08157 KLC |
3944 | |
3945 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
3946 | regular object. The current definition is in some section of the | |
3947 | dynamic object, but we're not including those sections. We have to | |
3948 | change the definition to something the rest of the link can | |
3949 | understand. */ | |
3950 | ||
3951 | static bfd_boolean | |
3952 | nds32_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
3953 | struct elf_link_hash_entry *h) | |
3954 | { | |
3955 | struct elf_nds32_link_hash_table *htab; | |
35c08157 KLC |
3956 | bfd *dynobj; |
3957 | asection *s; | |
3958 | unsigned int power_of_two; | |
3959 | ||
3960 | dynobj = elf_hash_table (info)->dynobj; | |
3961 | ||
3962 | /* Make sure we know what is going on here. */ | |
3963 | BFD_ASSERT (dynobj != NULL | |
3964 | && (h->needs_plt | |
60d67dc8 | 3965 | || h->is_weakalias |
35c08157 KLC |
3966 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); |
3967 | ||
3968 | ||
3969 | /* If this is a function, put it in the procedure linkage table. We | |
3970 | will fill in the contents of the procedure linkage table later, | |
3971 | when we know the address of the .got section. */ | |
3972 | if (h->type == STT_FUNC || h->needs_plt) | |
3973 | { | |
0e1862bb | 3974 | if (!bfd_link_pic (info) |
35c08157 KLC |
3975 | && !h->def_dynamic |
3976 | && !h->ref_dynamic | |
3977 | && h->root.type != bfd_link_hash_undefweak | |
3978 | && h->root.type != bfd_link_hash_undefined) | |
3979 | { | |
3980 | /* This case can occur if we saw a PLT reloc in an input | |
3981 | file, but the symbol was never referred to by a dynamic | |
3982 | object. In such a case, we don't actually need to build | |
3983 | a procedure linkage table, and we can just do a PCREL | |
3984 | reloc instead. */ | |
3985 | h->plt.offset = (bfd_vma) - 1; | |
3986 | h->needs_plt = 0; | |
3987 | } | |
3988 | ||
3989 | return TRUE; | |
3990 | } | |
3991 | else | |
3992 | h->plt.offset = (bfd_vma) - 1; | |
3993 | ||
3994 | /* If this is a weak symbol, and there is a real definition, the | |
3995 | processor independent code will have arranged for us to see the | |
3996 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 3997 | if (h->is_weakalias) |
35c08157 | 3998 | { |
60d67dc8 AM |
3999 | struct elf_link_hash_entry *def = weakdef (h); |
4000 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
4001 | h->root.u.def.section = def->root.u.def.section; | |
4002 | h->root.u.def.value = def->root.u.def.value; | |
35c08157 KLC |
4003 | return TRUE; |
4004 | } | |
4005 | ||
4006 | /* This is a reference to a symbol defined by a dynamic object which | |
4007 | is not a function. */ | |
4008 | ||
4009 | /* If we are creating a shared library, we must presume that the | |
4010 | only references to the symbol are via the global offset table. | |
4011 | For such cases we need not do anything here; the relocations will | |
4012 | be handled correctly by relocate_section. */ | |
0e1862bb | 4013 | if (bfd_link_pic (info)) |
35c08157 KLC |
4014 | return TRUE; |
4015 | ||
4016 | /* If there are no references to this symbol that do not use the | |
4017 | GOT, we don't need to generate a copy reloc. */ | |
4018 | if (!h->non_got_ref) | |
4019 | return TRUE; | |
4020 | ||
4021 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
3bf083ed | 4022 | if (0 && info->nocopyreloc) |
35c08157 KLC |
4023 | { |
4024 | h->non_got_ref = 0; | |
4025 | return TRUE; | |
4026 | } | |
4027 | ||
3bf083ed AM |
4028 | /* If we don't find any dynamic relocs in read-only sections, then |
4029 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
fbaf61ad | 4030 | if (!readonly_dynrelocs (h)) |
35c08157 KLC |
4031 | { |
4032 | h->non_got_ref = 0; | |
4033 | return TRUE; | |
4034 | } | |
4035 | ||
4036 | /* We must allocate the symbol in our .dynbss section, which will | |
4037 | become part of the .bss section of the executable. There will be | |
4038 | an entry for this symbol in the .dynsym section. The dynamic | |
4039 | object will contain position independent code, so all references | |
4040 | from the dynamic object to this symbol will go through the global | |
4041 | offset table. The dynamic linker will use the .dynsym entry to | |
4042 | determine the address it must put in the global offset table, so | |
4043 | both the dynamic object and the regular object will refer to the | |
4044 | same memory location for the variable. */ | |
4045 | ||
4046 | htab = nds32_elf_hash_table (info); | |
4047 | s = htab->sdynbss; | |
4048 | BFD_ASSERT (s != NULL); | |
4049 | ||
4050 | /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker | |
4051 | to copy the initial value out of the dynamic object and into the | |
4052 | runtime process image. We need to remember the offset into the | |
4053 | .rela.bss section we are going to use. */ | |
4054 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4055 | { | |
4056 | asection *srel; | |
4057 | ||
4058 | srel = htab->srelbss; | |
4059 | BFD_ASSERT (srel != NULL); | |
4060 | srel->size += sizeof (Elf32_External_Rela); | |
4061 | h->needs_copy = 1; | |
4062 | } | |
4063 | ||
4064 | /* We need to figure out the alignment required for this symbol. I | |
4065 | have no idea how ELF linkers handle this. */ | |
4066 | power_of_two = bfd_log2 (h->size); | |
4067 | if (power_of_two > 3) | |
4068 | power_of_two = 3; | |
4069 | ||
4070 | /* Apply the required alignment. */ | |
4071 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); | |
fd361982 | 4072 | if (power_of_two > bfd_section_alignment (s)) |
35c08157 | 4073 | { |
fd361982 | 4074 | if (!bfd_set_section_alignment (s, power_of_two)) |
35c08157 KLC |
4075 | return FALSE; |
4076 | } | |
4077 | ||
4078 | /* Define the symbol as being at this point in the section. */ | |
4079 | h->root.u.def.section = s; | |
4080 | h->root.u.def.value = s->size; | |
4081 | ||
4082 | /* Increment the section size to make room for the symbol. */ | |
4083 | s->size += h->size; | |
4084 | ||
4085 | return TRUE; | |
4086 | } | |
4087 | ||
4088 | /* Allocate space in .plt, .got and associated reloc sections for | |
4089 | dynamic relocs. */ | |
4090 | ||
4091 | static bfd_boolean | |
4092 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) | |
4093 | { | |
4094 | struct bfd_link_info *info; | |
fbaf61ad | 4095 | struct elf_link_hash_table *ehtab; |
35c08157 KLC |
4096 | struct elf_nds32_link_hash_table *htab; |
4097 | struct elf_nds32_link_hash_entry *eh; | |
3bf083ed | 4098 | struct elf_dyn_relocs *p; |
35c08157 KLC |
4099 | |
4100 | if (h->root.type == bfd_link_hash_indirect) | |
4101 | return TRUE; | |
4102 | ||
fbaf61ad NC |
4103 | /* When warning symbols are created, they **replace** the "real" |
4104 | entry in the hash table, thus we never get to see the real | |
4105 | symbol in a hash traversal. So look at it now. */ | |
35c08157 | 4106 | if (h->root.type == bfd_link_hash_warning) |
35c08157 KLC |
4107 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
4108 | ||
fbaf61ad NC |
4109 | eh = (struct elf_nds32_link_hash_entry *) h; |
4110 | ||
35c08157 | 4111 | info = (struct bfd_link_info *) inf; |
fbaf61ad | 4112 | ehtab = elf_hash_table (info); |
35c08157 | 4113 | htab = nds32_elf_hash_table (info); |
fbaf61ad NC |
4114 | if (htab == NULL) |
4115 | return FALSE; | |
35c08157 KLC |
4116 | |
4117 | eh = (struct elf_nds32_link_hash_entry *) h; | |
4118 | ||
fbaf61ad NC |
4119 | if ((htab->root.dynamic_sections_created || h->type == STT_GNU_IFUNC) |
4120 | && h->plt.refcount > 0 | |
4121 | && !(bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
4122 | { |
4123 | /* Make sure this symbol is output as a dynamic symbol. | |
4124 | Undefined weak syms won't yet be marked as dynamic. */ | |
4125 | if (h->dynindx == -1 && !h->forced_local) | |
4126 | { | |
4127 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
4128 | return FALSE; | |
4129 | } | |
4130 | ||
0e1862bb | 4131 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
35c08157 | 4132 | { |
fbaf61ad | 4133 | asection *s = ehtab->splt; |
35c08157 KLC |
4134 | |
4135 | /* If this is the first .plt entry, make room for the special | |
4136 | first entry. */ | |
4137 | if (s->size == 0) | |
4138 | s->size += PLT_ENTRY_SIZE; | |
4139 | ||
4140 | h->plt.offset = s->size; | |
4141 | ||
4142 | /* If this symbol is not defined in a regular file, and we are | |
4143 | not generating a shared library, then set the symbol to this | |
4144 | location in the .plt. This is required to make function | |
4145 | pointers compare as equal between the normal executable and | |
4146 | the shared library. */ | |
0e1862bb | 4147 | if (!bfd_link_pic (info) && !h->def_regular) |
35c08157 KLC |
4148 | { |
4149 | h->root.u.def.section = s; | |
4150 | h->root.u.def.value = h->plt.offset; | |
4151 | } | |
4152 | ||
4153 | /* Make room for this entry. */ | |
4154 | s->size += PLT_ENTRY_SIZE; | |
4155 | ||
4156 | /* We also need to make an entry in the .got.plt section, which | |
4157 | will be placed in the .got section by the linker script. */ | |
fbaf61ad | 4158 | ehtab->sgotplt->size += 4; |
35c08157 KLC |
4159 | |
4160 | /* We also need to make an entry in the .rel.plt section. */ | |
fbaf61ad NC |
4161 | ehtab->srelplt->size += sizeof (Elf32_External_Rela); |
4162 | if (htab->tls_desc_trampoline) | |
4163 | htab->next_tls_desc_index++; | |
35c08157 KLC |
4164 | } |
4165 | else | |
4166 | { | |
4167 | h->plt.offset = (bfd_vma) - 1; | |
4168 | h->needs_plt = 0; | |
4169 | } | |
4170 | } | |
4171 | else | |
4172 | { | |
4173 | h->plt.offset = (bfd_vma) - 1; | |
4174 | h->needs_plt = 0; | |
4175 | } | |
4176 | ||
4177 | if (h->got.refcount > 0) | |
4178 | { | |
fbaf61ad | 4179 | asection *sgot; |
35c08157 | 4180 | bfd_boolean dyn; |
1c8f6a4d | 4181 | int tls_type = elf32_nds32_hash_entry (h)->tls_type; |
35c08157 KLC |
4182 | |
4183 | /* Make sure this symbol is output as a dynamic symbol. | |
4184 | Undefined weak syms won't yet be marked as dynamic. */ | |
4185 | if (h->dynindx == -1 && !h->forced_local) | |
4186 | { | |
4187 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
4188 | return FALSE; | |
4189 | } | |
4190 | ||
fbaf61ad NC |
4191 | sgot = elf_hash_table (info)->sgot; |
4192 | h->got.offset = sgot->size; | |
1c8f6a4d KLC |
4193 | |
4194 | if (tls_type == GOT_UNKNOWN) | |
4195 | abort (); | |
fbaf61ad NC |
4196 | |
4197 | /* Non-TLS symbols, and TLS_IE need one GOT slot. */ | |
4198 | if (tls_type & (GOT_NORMAL | GOT_TLS_IE | GOT_TLS_IEGP)) | |
4199 | sgot->size += 4; | |
4200 | else | |
4201 | { | |
4202 | /* TLS_DESC, TLS_GD, and TLS_LD need 2 consecutive GOT slots. */ | |
4203 | if (tls_type & GOT_TLS_DESC) | |
4204 | sgot->size += 8; | |
4205 | } | |
1c8f6a4d | 4206 | |
35c08157 | 4207 | dyn = htab->root.dynamic_sections_created; |
fbaf61ad | 4208 | |
0e1862bb | 4209 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
fbaf61ad NC |
4210 | { |
4211 | if (tls_type == GOT_TLS_DESC && htab->tls_desc_trampoline) | |
4212 | { | |
4213 | /* TLS_DESC with trampoline needs a relocation slot | |
4214 | within .rela.plt. */ | |
4215 | htab->num_tls_desc++; | |
4216 | ehtab->srelplt->size += sizeof (Elf32_External_Rela); | |
4217 | htab->tls_trampoline = -1; | |
4218 | } | |
4219 | else | |
4220 | { | |
4221 | /* other relocations, including TLS_DESC without trampoline, need | |
4222 | a relocation slot within .rela.got. */ | |
4223 | ehtab->srelgot->size += sizeof (Elf32_External_Rela); | |
4224 | } | |
4225 | } | |
35c08157 KLC |
4226 | } |
4227 | else | |
fbaf61ad | 4228 | h->got.offset = (bfd_vma)-1; |
35c08157 KLC |
4229 | |
4230 | if (eh->dyn_relocs == NULL) | |
4231 | return TRUE; | |
4232 | ||
4233 | /* In the shared -Bsymbolic case, discard space allocated for | |
4234 | dynamic pc-relative relocs against symbols which turn out to be | |
4235 | defined in regular objects. For the normal shared case, discard | |
4236 | space for pc-relative relocs that have become local due to symbol | |
4237 | visibility changes. */ | |
4238 | ||
0e1862bb | 4239 | if (bfd_link_pic (info)) |
35c08157 KLC |
4240 | { |
4241 | if (h->def_regular && (h->forced_local || info->symbolic)) | |
4242 | { | |
3bf083ed | 4243 | struct elf_dyn_relocs **pp; |
35c08157 KLC |
4244 | |
4245 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
4246 | { | |
4247 | p->count -= p->pc_count; | |
4248 | p->pc_count = 0; | |
4249 | if (p->count == 0) | |
4250 | *pp = p->next; | |
4251 | else | |
4252 | pp = &p->next; | |
4253 | } | |
4254 | } | |
4255 | } | |
4256 | else | |
4257 | { | |
4258 | /* For the non-shared case, discard space for relocs against | |
4259 | symbols which turn out to need copy relocs or are not dynamic. */ | |
4260 | ||
4261 | if (!h->non_got_ref | |
4262 | && ((h->def_dynamic | |
4263 | && !h->def_regular) | |
4264 | || (htab->root.dynamic_sections_created | |
4265 | && (h->root.type == bfd_link_hash_undefweak | |
4266 | || h->root.type == bfd_link_hash_undefined)))) | |
4267 | { | |
4268 | /* Make sure this symbol is output as a dynamic symbol. | |
4269 | Undefined weak syms won't yet be marked as dynamic. */ | |
4270 | if (h->dynindx == -1 && !h->forced_local) | |
4271 | { | |
4272 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
4273 | return FALSE; | |
4274 | } | |
4275 | ||
4276 | /* If that succeeded, we know we'll be keeping all the | |
4277 | relocs. */ | |
4278 | if (h->dynindx != -1) | |
4279 | goto keep; | |
4280 | } | |
4281 | ||
4282 | eh->dyn_relocs = NULL; | |
4283 | ||
dc1e8a47 | 4284 | keep:; |
35c08157 KLC |
4285 | } |
4286 | ||
4287 | /* Finally, allocate space. */ | |
4288 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
4289 | { | |
4290 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
4291 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
4292 | } | |
4293 | ||
4294 | return TRUE; | |
4295 | } | |
4296 | ||
fbaf61ad NC |
4297 | /* Add relocation REL to the end of relocation section SRELOC. */ |
4298 | ||
4299 | static void | |
4300 | elf32_nds32_add_dynreloc (bfd *output_bfd, | |
4301 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
4302 | asection *sreloc, Elf_Internal_Rela *rel) | |
4303 | { | |
4304 | bfd_byte *loc; | |
4305 | if (sreloc == NULL) | |
4306 | abort (); | |
4307 | ||
4308 | loc = sreloc->contents; | |
4309 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
4310 | if (sreloc->reloc_count * sizeof (Elf32_External_Rela) > sreloc->size) | |
4311 | abort (); | |
4312 | ||
4313 | bfd_elf32_swap_reloca_out (output_bfd, rel, loc); | |
4314 | } | |
4315 | ||
63c1f59d AM |
4316 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
4317 | read-only sections. */ | |
35c08157 KLC |
4318 | |
4319 | static bfd_boolean | |
63c1f59d | 4320 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
35c08157 | 4321 | { |
63c1f59d | 4322 | asection *sec; |
35c08157 | 4323 | |
63c1f59d AM |
4324 | if (h->root.type == bfd_link_hash_indirect) |
4325 | return TRUE; | |
35c08157 | 4326 | |
63c1f59d AM |
4327 | sec = readonly_dynrelocs (h); |
4328 | if (sec != NULL) | |
35c08157 | 4329 | { |
63c1f59d | 4330 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; |
35c08157 | 4331 | |
63c1f59d AM |
4332 | info->flags |= DF_TEXTREL; |
4333 | info->callbacks->minfo | |
c1c8c1ef | 4334 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
63c1f59d | 4335 | sec->owner, h->root.root.string, sec); |
35c08157 | 4336 | |
63c1f59d AM |
4337 | /* Not an error, just cut short the traversal. */ |
4338 | return FALSE; | |
35c08157 KLC |
4339 | } |
4340 | return TRUE; | |
4341 | } | |
4342 | ||
4343 | /* Set the sizes of the dynamic sections. */ | |
4344 | ||
4345 | static bfd_boolean | |
4346 | nds32_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
4347 | struct bfd_link_info *info) | |
4348 | { | |
4349 | struct elf_nds32_link_hash_table *htab; | |
4350 | bfd *dynobj; | |
4351 | asection *s; | |
4352 | bfd_boolean relocs; | |
fbaf61ad | 4353 | bfd_boolean plt; |
35c08157 KLC |
4354 | bfd *ibfd; |
4355 | ||
4356 | htab = nds32_elf_hash_table (info); | |
fbaf61ad NC |
4357 | if (htab == NULL) |
4358 | return FALSE; | |
4359 | ||
4360 | dynobj = elf_hash_table (info)->dynobj; | |
35c08157 KLC |
4361 | BFD_ASSERT (dynobj != NULL); |
4362 | ||
fbaf61ad | 4363 | if (elf_hash_table (info)->dynamic_sections_created) |
35c08157 KLC |
4364 | { |
4365 | /* Set the contents of the .interp section to the interpreter. */ | |
f5233a16 | 4366 | if (bfd_link_executable (info) && !info->nointerp) |
35c08157 KLC |
4367 | { |
4368 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
4369 | BFD_ASSERT (s != NULL); | |
4370 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
4371 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
4372 | } | |
4373 | } | |
4374 | ||
4375 | /* Set up .got offsets for local syms, and space for local dynamic | |
4376 | relocs. */ | |
c72f2fb2 | 4377 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
35c08157 KLC |
4378 | { |
4379 | bfd_signed_vma *local_got; | |
4380 | bfd_signed_vma *end_local_got; | |
4381 | bfd_size_type locsymcount; | |
4382 | Elf_Internal_Shdr *symtab_hdr; | |
fbaf61ad NC |
4383 | asection *sgot; |
4384 | char *local_tls_type; | |
4385 | unsigned long symndx; | |
4386 | bfd_vma *local_tlsdesc_gotent; | |
35c08157 KLC |
4387 | |
4388 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
4389 | continue; | |
4390 | ||
4391 | for (s = ibfd->sections; s != NULL; s = s->next) | |
4392 | { | |
3bf083ed | 4393 | struct elf_dyn_relocs *p; |
35c08157 | 4394 | |
3bf083ed | 4395 | for (p = ((struct elf_dyn_relocs *) |
35c08157 KLC |
4396 | elf_section_data (s)->local_dynrel); |
4397 | p != NULL; p = p->next) | |
4398 | { | |
4399 | if (!bfd_is_abs_section (p->sec) | |
4400 | && bfd_is_abs_section (p->sec->output_section)) | |
4401 | { | |
4402 | /* Input section has been discarded, either because | |
4403 | it is a copy of a linkonce section or due to | |
4404 | linker script /DISCARD/, so we'll be discarding | |
4405 | the relocs too. */ | |
4406 | } | |
4407 | else if (p->count != 0) | |
4408 | { | |
fbaf61ad NC |
4409 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
4410 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
35c08157 KLC |
4411 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
4412 | info->flags |= DF_TEXTREL; | |
4413 | } | |
4414 | } | |
4415 | } | |
4416 | ||
4417 | local_got = elf_local_got_refcounts (ibfd); | |
4418 | if (!local_got) | |
4419 | continue; | |
4420 | ||
4421 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4422 | locsymcount = symtab_hdr->sh_info; | |
4423 | end_local_got = local_got + locsymcount; | |
fbaf61ad NC |
4424 | sgot = elf_hash_table (info)->sgot; |
4425 | local_tls_type = elf32_nds32_local_got_tls_type (ibfd); | |
4426 | local_tlsdesc_gotent = elf32_nds32_local_tlsdesc_gotent (ibfd); | |
4427 | for (symndx = 0; local_got < end_local_got; | |
4428 | ++local_got, ++local_tls_type, ++local_tlsdesc_gotent, ++symndx) | |
35c08157 KLC |
4429 | { |
4430 | if (*local_got > 0) | |
4431 | { | |
fbaf61ad NC |
4432 | int num_of_got_entry_needed = 0; |
4433 | *local_got = sgot->size; | |
4434 | *local_tlsdesc_gotent = sgot->size; | |
4435 | ||
4436 | /* TLS_NORMAL, and TLS_IE need one slot in .got. */ | |
4437 | if (*local_tls_type & (GOT_NORMAL | GOT_TLS_IE | GOT_TLS_IEGP)) | |
4438 | num_of_got_entry_needed = 1; | |
4439 | /* TLS_GD, TLS_LD, and TLS_DESC need an 8-byte structure in the GOT. */ | |
4440 | else if (*local_tls_type & GOT_TLS_DESC) | |
4441 | num_of_got_entry_needed = 2; | |
4442 | ||
4443 | sgot->size += (num_of_got_entry_needed << 2); | |
4444 | ||
4445 | /* non-relax-able TLS_DESCs need a slot in .rela.plt. | |
4446 | others need a slot in .rela.got. */ | |
4447 | if (*local_tls_type == GOT_TLS_DESC) | |
4448 | { | |
4449 | if (bfd_link_pic (info)) | |
4450 | { | |
4451 | if (htab->tls_desc_trampoline) | |
4452 | { | |
4453 | htab->num_tls_desc++; | |
4454 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); | |
4455 | htab->tls_trampoline = -1; | |
4456 | } | |
4457 | else | |
4458 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
4459 | } | |
4460 | else | |
4461 | { | |
4462 | /* TLS_DESC -> TLS_LE */ | |
4463 | } | |
4464 | } | |
4465 | else | |
4466 | { | |
4467 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
4468 | } | |
35c08157 KLC |
4469 | } |
4470 | else | |
fbaf61ad NC |
4471 | { |
4472 | *local_got = (bfd_vma) -1; | |
4473 | *local_tlsdesc_gotent = (bfd_vma) -1; | |
4474 | } | |
35c08157 KLC |
4475 | } |
4476 | } | |
4477 | ||
4478 | /* Allocate global sym .plt and .got entries, and space for global | |
4479 | sym dynamic relocs. */ | |
4480 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (void *) info); | |
4481 | ||
fbaf61ad NC |
4482 | /* For every jump slot reserved in the sgotplt, reloc_count is |
4483 | incremented. However, when we reserve space for TLS descriptors, | |
4484 | it's not incremented, so in order to compute the space reserved | |
4485 | for them, it suffices to multiply the reloc count by the jump | |
4486 | slot size. */ | |
4487 | if (htab->tls_desc_trampoline && htab->root.srelplt) | |
4488 | htab->sgotplt_jump_table_size = elf32_nds32_compute_jump_table_size (htab); | |
4489 | ||
4490 | if (htab->tls_trampoline) | |
4491 | { | |
4492 | htab->tls_trampoline = htab->root.splt->size; | |
4493 | ||
4494 | /* If we're not using lazy TLS relocations, don't generate the | |
4495 | PLT and GOT entries they require. */ | |
4496 | if (!(info->flags & DF_BIND_NOW)) | |
4497 | { | |
4498 | htab->dt_tlsdesc_got = htab->root.sgot->size; | |
4499 | htab->root.sgot->size += 4; | |
4500 | ||
4501 | htab->dt_tlsdesc_plt = htab->root.splt->size; | |
4502 | htab->root.splt->size += 4 * ARRAY_SIZE (dl_tlsdesc_lazy_trampoline); | |
4503 | } | |
4504 | } | |
4505 | ||
35c08157 KLC |
4506 | /* We now have determined the sizes of the various dynamic sections. |
4507 | Allocate memory for them. */ | |
fbaf61ad NC |
4508 | /* The check_relocs and adjust_dynamic_symbol entry points have |
4509 | determined the sizes of the various dynamic sections. Allocate | |
4510 | memory for them. */ | |
4511 | plt = FALSE; | |
35c08157 KLC |
4512 | relocs = FALSE; |
4513 | for (s = dynobj->sections; s != NULL; s = s->next) | |
4514 | { | |
4515 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
4516 | continue; | |
4517 | ||
ce558b89 | 4518 | if (s == htab->root.splt) |
35c08157 KLC |
4519 | { |
4520 | /* Strip this section if we don't need it; see the | |
4521 | comment below. */ | |
fbaf61ad | 4522 | plt = s->size != 0; |
35c08157 | 4523 | } |
fbaf61ad | 4524 | else if (s == elf_hash_table (info)->sgot) |
35c08157 KLC |
4525 | { |
4526 | got_size += s->size; | |
4527 | } | |
fbaf61ad | 4528 | else if (s == elf_hash_table (info)->sgotplt) |
35c08157 KLC |
4529 | { |
4530 | got_size += s->size; | |
4531 | } | |
fd361982 | 4532 | else if (strncmp (bfd_section_name (s), ".rela", 5) == 0) |
35c08157 | 4533 | { |
fbaf61ad | 4534 | if (s->size != 0 && s != elf_hash_table (info)->srelplt) |
35c08157 KLC |
4535 | relocs = TRUE; |
4536 | ||
4537 | /* We use the reloc_count field as a counter if we need | |
4538 | to copy relocs into the output file. */ | |
4539 | s->reloc_count = 0; | |
4540 | } | |
4541 | else | |
4542 | { | |
4543 | /* It's not one of our sections, so don't allocate space. */ | |
4544 | continue; | |
4545 | } | |
4546 | ||
4547 | if (s->size == 0) | |
4548 | { | |
4549 | /* If we don't need this section, strip it from the | |
4550 | output file. This is mostly to handle .rela.bss and | |
4551 | .rela.plt. We must create both sections in | |
4552 | create_dynamic_sections, because they must be created | |
4553 | before the linker maps input sections to output | |
4554 | sections. The linker does that before | |
4555 | adjust_dynamic_symbol is called, and it is that | |
4556 | function which decides whether anything needs to go | |
4557 | into these sections. */ | |
4558 | s->flags |= SEC_EXCLUDE; | |
4559 | continue; | |
4560 | } | |
4561 | ||
4562 | /* Allocate memory for the section contents. We use bfd_zalloc | |
4563 | here in case unused entries are not reclaimed before the | |
4564 | section's contents are written out. This should not happen, | |
4565 | but this way if it does, we get a R_NDS32_NONE reloc instead | |
4566 | of garbage. */ | |
4567 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
4568 | if (s->contents == NULL) | |
4569 | return FALSE; | |
4570 | } | |
4571 | ||
4572 | ||
4573 | if (htab->root.dynamic_sections_created) | |
4574 | { | |
4575 | /* Add some entries to the .dynamic section. We fill in the | |
4576 | values later, in nds32_elf_finish_dynamic_sections, but we | |
4577 | must add the entries now so that we get the correct size for | |
4578 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
4579 | dynamic linker and used by the debugger. */ | |
4580 | #define add_dynamic_entry(TAG, VAL) \ | |
4581 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
4582 | ||
fbaf61ad | 4583 | if (bfd_link_executable (info)) |
35c08157 KLC |
4584 | { |
4585 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
4586 | return FALSE; | |
4587 | } | |
4588 | ||
fbaf61ad | 4589 | if (elf_hash_table (info)->splt->size != 0) |
35c08157 KLC |
4590 | { |
4591 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
4592 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
4593 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
4594 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
4595 | return FALSE; | |
4596 | } | |
4597 | ||
fbaf61ad NC |
4598 | if (htab->tls_desc_trampoline && plt) |
4599 | { | |
4600 | if (htab->dt_tlsdesc_plt | |
4601 | && (!add_dynamic_entry (DT_TLSDESC_PLT, 0) | |
4602 | || !add_dynamic_entry (DT_TLSDESC_GOT, 0))) | |
4603 | return FALSE; | |
4604 | } | |
4605 | ||
35c08157 KLC |
4606 | if (relocs) |
4607 | { | |
4608 | if (!add_dynamic_entry (DT_RELA, 0) | |
4609 | || !add_dynamic_entry (DT_RELASZ, 0) | |
4610 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
4611 | return FALSE; | |
4612 | ||
4613 | /* If any dynamic relocs apply to a read-only section, | |
4614 | then we need a DT_TEXTREL entry. */ | |
4615 | if ((info->flags & DF_TEXTREL) == 0) | |
63c1f59d | 4616 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, |
35c08157 KLC |
4617 | (void *) info); |
4618 | ||
4619 | if ((info->flags & DF_TEXTREL) != 0) | |
4620 | { | |
4621 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
4622 | return FALSE; | |
4623 | } | |
4624 | } | |
4625 | } | |
4626 | #undef add_dynamic_entry | |
4627 | ||
4628 | return TRUE; | |
4629 | } | |
4630 | ||
4631 | static bfd_reloc_status_type | |
4632 | nds32_relocate_contents (reloc_howto_type *howto, bfd *input_bfd, | |
4633 | bfd_vma relocation, bfd_byte *location) | |
4634 | { | |
4635 | int size; | |
4636 | bfd_vma x = 0; | |
4637 | bfd_reloc_status_type flag; | |
4638 | unsigned int rightshift = howto->rightshift; | |
4639 | unsigned int bitpos = howto->bitpos; | |
4640 | ||
4641 | /* If the size is negative, negate RELOCATION. This isn't very | |
4642 | general. */ | |
4643 | if (howto->size < 0) | |
4644 | relocation = -relocation; | |
4645 | ||
4646 | /* Get the value we are going to relocate. */ | |
4647 | size = bfd_get_reloc_size (howto); | |
4648 | switch (size) | |
4649 | { | |
4650 | default: | |
35c08157 KLC |
4651 | abort (); |
4652 | break; | |
6346d5ca AM |
4653 | case 0: |
4654 | return bfd_reloc_ok; | |
35c08157 KLC |
4655 | case 2: |
4656 | x = bfd_getb16 (location); | |
4657 | break; | |
4658 | case 4: | |
4659 | x = bfd_getb32 (location); | |
4660 | break; | |
4661 | } | |
4662 | ||
4663 | /* Check for overflow. FIXME: We may drop bits during the addition | |
4664 | which we don't check for. We must either check at every single | |
4665 | operation, which would be tedious, or we must do the computations | |
4666 | in a type larger than bfd_vma, which would be inefficient. */ | |
4667 | flag = bfd_reloc_ok; | |
4668 | if (howto->complain_on_overflow != complain_overflow_dont) | |
4669 | { | |
4670 | bfd_vma addrmask, fieldmask, signmask, ss; | |
4671 | bfd_vma a, b, sum; | |
4672 | ||
4673 | /* Get the values to be added together. For signed and unsigned | |
4674 | relocations, we assume that all values should be truncated to | |
4675 | the size of an address. For bitfields, all the bits matter. | |
4676 | See also bfd_check_overflow. */ | |
4677 | fieldmask = N_ONES (howto->bitsize); | |
4678 | signmask = ~fieldmask; | |
4679 | addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask; | |
4680 | a = (relocation & addrmask) >> rightshift; | |
4681 | b = (x & howto->src_mask & addrmask) >> bitpos; | |
4682 | ||
4683 | switch (howto->complain_on_overflow) | |
4684 | { | |
4685 | case complain_overflow_signed: | |
4686 | /* If any sign bits are set, all sign bits must be set. | |
4687 | That is, A must be a valid negative address after | |
4688 | shifting. */ | |
4689 | signmask = ~(fieldmask >> 1); | |
4690 | /* Fall through. */ | |
4691 | ||
4692 | case complain_overflow_bitfield: | |
4693 | /* Much like the signed check, but for a field one bit | |
4694 | wider. We allow a bitfield to represent numbers in the | |
4695 | range -2**n to 2**n-1, where n is the number of bits in the | |
4696 | field. Note that when bfd_vma is 32 bits, a 32-bit reloc | |
4697 | can't overflow, which is exactly what we want. */ | |
4698 | ss = a & signmask; | |
4699 | if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) | |
4700 | flag = bfd_reloc_overflow; | |
4701 | ||
4702 | /* We only need this next bit of code if the sign bit of B | |
4703 | is below the sign bit of A. This would only happen if | |
4704 | SRC_MASK had fewer bits than BITSIZE. Note that if | |
4705 | SRC_MASK has more bits than BITSIZE, we can get into | |
4706 | trouble; we would need to verify that B is in range, as | |
4707 | we do for A above. */ | |
4708 | ss = ((~howto->src_mask) >> 1) & howto->src_mask; | |
4709 | ss >>= bitpos; | |
4710 | ||
4711 | /* Set all the bits above the sign bit. */ | |
4712 | b = (b ^ ss) - ss; | |
4713 | ||
4714 | /* Now we can do the addition. */ | |
4715 | sum = a + b; | |
4716 | ||
4717 | /* See if the result has the correct sign. Bits above the | |
4718 | sign bit are junk now; ignore them. If the sum is | |
4719 | positive, make sure we did not have all negative inputs; | |
4720 | if the sum is negative, make sure we did not have all | |
4721 | positive inputs. The test below looks only at the sign | |
4722 | bits, and it really just | |
4723 | SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM) | |
4724 | ||
4725 | We mask with addrmask here to explicitly allow an address | |
4726 | wrap-around. The Linux kernel relies on it, and it is | |
4727 | the only way to write assembler code which can run when | |
4728 | loaded at a location 0x80000000 away from the location at | |
4729 | which it is linked. */ | |
4730 | if (((~(a ^ b)) & (a ^ sum)) & signmask & addrmask) | |
4731 | flag = bfd_reloc_overflow; | |
4732 | ||
4733 | break; | |
4734 | ||
4735 | case complain_overflow_unsigned: | |
4736 | /* Checking for an unsigned overflow is relatively easy: | |
4737 | trim the addresses and add, and trim the result as well. | |
4738 | Overflow is normally indicated when the result does not | |
4739 | fit in the field. However, we also need to consider the | |
4740 | case when, e.g., fieldmask is 0x7fffffff or smaller, an | |
4741 | input is 0x80000000, and bfd_vma is only 32 bits; then we | |
4742 | will get sum == 0, but there is an overflow, since the | |
4743 | inputs did not fit in the field. Instead of doing a | |
4744 | separate test, we can check for this by or-ing in the | |
4745 | operands when testing for the sum overflowing its final | |
4746 | field. */ | |
4747 | sum = (a + b) & addrmask; | |
4748 | if ((a | b | sum) & signmask) | |
4749 | flag = bfd_reloc_overflow; | |
4750 | break; | |
4751 | ||
4752 | default: | |
4753 | abort (); | |
4754 | } | |
4755 | } | |
4756 | ||
4757 | /* Put RELOCATION in the right bits. */ | |
4758 | relocation >>= (bfd_vma) rightshift; | |
4759 | relocation <<= (bfd_vma) bitpos; | |
4760 | ||
4761 | /* Add RELOCATION to the right bits of X. */ | |
4762 | /* FIXME : 090616 | |
4763 | Because the relaxation may generate duplicate relocation at one address, | |
4764 | an addition to immediate in the instruction may cause the relocation added | |
4765 | several times. | |
4766 | This bug should be fixed in assembler, but a check is also needed here. */ | |
4767 | if (howto->partial_inplace) | |
4768 | x = ((x & ~howto->dst_mask) | |
4769 | | (((x & howto->src_mask) + relocation) & howto->dst_mask)); | |
4770 | else | |
4771 | x = ((x & ~howto->dst_mask) | ((relocation) & howto->dst_mask)); | |
4772 | ||
4773 | ||
4774 | /* Put the relocated value back in the object file. */ | |
4775 | switch (size) | |
4776 | { | |
4777 | default: | |
4778 | case 0: | |
4779 | case 1: | |
4780 | case 8: | |
4781 | abort (); | |
4782 | break; | |
4783 | case 2: | |
4784 | bfd_putb16 (x, location); | |
4785 | break; | |
4786 | case 4: | |
4787 | bfd_putb32 (x, location); | |
4788 | break; | |
4789 | } | |
4790 | ||
4791 | return flag; | |
4792 | } | |
4793 | ||
4794 | static bfd_reloc_status_type | |
4795 | nds32_elf_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd, | |
4796 | asection *input_section, bfd_byte *contents, | |
4797 | bfd_vma address, bfd_vma value, bfd_vma addend) | |
4798 | { | |
4799 | bfd_vma relocation; | |
4800 | ||
4801 | /* Sanity check the address. */ | |
4802 | if (address > bfd_get_section_limit (input_bfd, input_section)) | |
4803 | return bfd_reloc_outofrange; | |
4804 | ||
4805 | /* This function assumes that we are dealing with a basic relocation | |
4806 | against a symbol. We want to compute the value of the symbol to | |
4807 | relocate to. This is just VALUE, the value of the symbol, plus | |
4808 | ADDEND, any addend associated with the reloc. */ | |
4809 | relocation = value + addend; | |
4810 | ||
4811 | /* If the relocation is PC relative, we want to set RELOCATION to | |
4812 | the distance between the symbol (currently in RELOCATION) and the | |
c2bf1eec | 4813 | location we are relocating. If pcrel_offset is FALSE we do not |
35c08157 KLC |
4814 | need to subtract out the offset of the location within the |
4815 | section (which is just ADDRESS). */ | |
4816 | if (howto->pc_relative) | |
4817 | { | |
4818 | relocation -= (input_section->output_section->vma | |
4819 | + input_section->output_offset); | |
4820 | if (howto->pcrel_offset) | |
4821 | relocation -= address; | |
4822 | } | |
4823 | ||
4824 | return nds32_relocate_contents (howto, input_bfd, relocation, | |
4825 | contents + address); | |
4826 | } | |
4827 | ||
4828 | static bfd_boolean | |
4829 | nds32_elf_output_symbol_hook (struct bfd_link_info *info, | |
4830 | const char *name, | |
4831 | Elf_Internal_Sym *elfsym ATTRIBUTE_UNUSED, | |
4832 | asection *input_sec, | |
4833 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
4834 | { | |
4835 | const char *source; | |
4836 | FILE *sym_ld_script = NULL; | |
4837 | struct elf_nds32_link_hash_table *table; | |
4838 | ||
4839 | table = nds32_elf_hash_table (info); | |
4840 | sym_ld_script = table->sym_ld_script; | |
4841 | if (!sym_ld_script) | |
4842 | return TRUE; | |
4843 | ||
4844 | if (!h || !name || *name == '\0') | |
4845 | return TRUE; | |
4846 | ||
4847 | if (input_sec->flags & SEC_EXCLUDE) | |
4848 | return TRUE; | |
4849 | ||
4850 | if (!check_start_export_sym) | |
4851 | { | |
4852 | fprintf (sym_ld_script, "SECTIONS\n{\n"); | |
4853 | check_start_export_sym = 1; | |
4854 | } | |
4855 | ||
4856 | if (h->root.type == bfd_link_hash_defined | |
4857 | || h->root.type == bfd_link_hash_defweak) | |
4858 | { | |
4859 | if (!h->root.u.def.section->output_section) | |
4860 | return TRUE; | |
4861 | ||
4862 | if (bfd_is_const_section (input_sec)) | |
4863 | source = input_sec->name; | |
4864 | else | |
4865 | source = input_sec->owner->filename; | |
4866 | ||
4867 | fprintf (sym_ld_script, "\t%s = 0x%08lx;\t /* %s */\n", | |
4868 | h->root.root.string, | |
4869 | (long) (h->root.u.def.value | |
4870 | + h->root.u.def.section->output_section->vma | |
4871 | + h->root.u.def.section->output_offset), source); | |
4872 | } | |
4873 | ||
4874 | return TRUE; | |
4875 | } | |
4876 | ||
4877 | /* Relocate an NDS32/D ELF section. | |
4878 | There is some attempt to make this function usable for many architectures, | |
4879 | both for RELA and REL type relocs, if only to serve as a learning tool. | |
4880 | ||
4881 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
4882 | to handle the relocations for a section. | |
4883 | ||
4884 | The relocs are always passed as Rela structures; if the section | |
4885 | actually uses Rel structures, the r_addend field will always be | |
4886 | zero. | |
4887 | ||
4888 | This function is responsible for adjust the section contents as | |
4889 | necessary, and (if using Rela relocs and generating a | |
4890 | relocatable output file) adjusting the reloc addend as | |
4891 | necessary. | |
4892 | ||
4893 | This function does not have to worry about setting the reloc | |
4894 | address or the reloc symbol index. | |
4895 | ||
4896 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
4897 | ||
4898 | LOCAL_SECTIONS is an array giving the section in the input file | |
4899 | corresponding to the st_shndx field of each local symbol. | |
4900 | ||
4901 | The global hash table entry for the global symbols can be found | |
4902 | via elf_sym_hashes (input_bfd). | |
4903 | ||
4904 | When generating relocatable output, this function must handle | |
4905 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
4906 | going to be the section symbol corresponding to the output | |
4907 | section, which means that the addend must be adjusted | |
4908 | accordingly. */ | |
4909 | ||
fbaf61ad NC |
4910 | /* Return the base VMA address which should be subtracted from real addresses |
4911 | when resolving @dtpoff relocation. | |
4912 | This is PT_TLS segment p_vaddr. */ | |
4913 | ||
4914 | /* Return the relocation value for @tpoff relocation | |
4915 | if STT_TLS virtual address is ADDRESS. */ | |
4916 | ||
4917 | /* Return the relocation value for @gottpoff relocation | |
4918 | if STT_TLS virtual address is ADDRESS. */ | |
4919 | ||
1c8f6a4d | 4920 | static bfd_vma |
fbaf61ad | 4921 | gottpoff (struct bfd_link_info *info, bfd_vma address) |
1c8f6a4d | 4922 | { |
fbaf61ad NC |
4923 | bfd_vma tp_base; |
4924 | bfd_vma tp_offset; | |
4925 | ||
1c8f6a4d KLC |
4926 | /* If tls_sec is NULL, we should have signalled an error already. */ |
4927 | if (elf_hash_table (info)->tls_sec == NULL) | |
4928 | return 0; | |
fbaf61ad NC |
4929 | |
4930 | tp_base = elf_hash_table (info)->tls_sec->vma; | |
4931 | tp_offset = address - tp_base; | |
4932 | ||
4933 | return tp_offset; | |
1c8f6a4d KLC |
4934 | } |
4935 | ||
35c08157 | 4936 | static bfd_boolean |
fbaf61ad NC |
4937 | patch_tls_desc_to_ie (bfd_byte *contents, Elf_Internal_Rela *rel, bfd *ibfd) |
4938 | { | |
4939 | /* TLS_GD/TLS_LD model #1 | |
4940 | 46 00 00 00 sethi $r0,#0x0 | |
4941 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4942 | 40 00 74 00 add $r0,$r0,$gp | |
4943 | 04 10 00 00 lwi $r1,[$r0+#0x0] | |
4944 | 4b e0 04 01 jral $lp,$r1 */ | |
4945 | ||
4946 | /* TLS_GD/TLS_LD model #2 | |
4947 | 46 00 00 00 sethi $r0,#0x0 | |
4948 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4949 | 38 10 74 02 lw $r1,[$r0+($gp<<#0x0)] | |
4950 | 40 00 74 00 add $r0,$r0,$gp | |
4951 | 4b e0 04 01 jral $lp,$r1 */ | |
4952 | ||
4953 | /* TLS_IE model (non-PIC) | |
4954 | 46 00 00 00 sethi $r0,#0x0 | |
4955 | 04 00 00 00 lwi $r0,[$r0+#0x0] | |
4956 | 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */ | |
4957 | ||
4958 | /* TLS_IE model (PIC) | |
4959 | 46 00 00 00 sethi $r0,#0x0 | |
4960 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4961 | 38 00 74 02 lw $r0,[$r0+($gp<<#0x0)] | |
4962 | 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */ | |
4963 | ||
4964 | /* TLS_GD_TO_IE model | |
4965 | 46 00 00 00 sethi $r0,#0x0 | |
4966 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4967 | 40 00 74 00 add $r0,$rM,$gp | |
4968 | 04 00 00 01 lwi $r0,[$r0+#0x4] | |
4969 | 40 00 64 00 add $r0,$r0,$r25 */ | |
4970 | ||
4971 | bfd_boolean rz = FALSE; | |
4972 | ||
4973 | typedef struct | |
4974 | { | |
4975 | uint32_t opcode; | |
4976 | uint32_t mask; | |
4977 | } pat_t; | |
4978 | ||
4979 | uint32_t patch[3] = | |
4980 | { | |
4981 | 0x40007400, /* add $r0,$rM,$gp */ | |
4982 | 0x04000001, /* lwi $r0,[$r0+#0x4] */ | |
4983 | 0x40006400, /* add $r0,$r0,$r25 */ | |
4984 | }; | |
4985 | ||
4986 | pat_t mode0[3] = | |
4987 | { | |
4988 | { 0x40000000, 0xfe0003ff }, | |
4989 | { 0x04000000, 0xfe000000 }, | |
4990 | { 0x4be00001, 0xffff83ff }, | |
4991 | }; | |
4992 | ||
4993 | pat_t mode1[3] = | |
4994 | { | |
4995 | { 0x38007402, 0xfe007fff }, | |
4996 | { 0x40007400, 0xfe007fff }, | |
4997 | { 0x4be00001, 0xffff83ff }, | |
4998 | }; | |
4999 | ||
5000 | unsigned char *p = contents + rel->r_offset; | |
5001 | ||
5002 | uint32_t insn; | |
5003 | uint32_t regidx = 0; | |
5004 | insn = bfd_getb32 (p); | |
5005 | if (INSN_SETHI == (0xfe0fffffu & insn)) | |
5006 | { | |
5007 | regidx = 0x1f & (insn >> 20); | |
5008 | p += 4; | |
5009 | } | |
5010 | ||
5011 | insn = bfd_getb32 (p); | |
5012 | if (INSN_ORI == (0xfe007fffu & insn)) | |
5013 | { | |
5014 | regidx = 0x1f & (insn >> 20); | |
5015 | p += 4; | |
5016 | } | |
5017 | ||
5018 | if (patch[2] == bfd_getb32 (p + 8)) /* Character instruction. */ | |
5019 | { | |
5020 | /* already patched? */ | |
5021 | if ((patch[0] == (0xfff07fffu & bfd_getb32 (p + 0))) && | |
5022 | (patch[1] == bfd_getb32 (p + 4))) | |
5023 | rz = TRUE; | |
5024 | } | |
5025 | else if (mode0[0].opcode == (mode0[0].mask & bfd_getb32 (p + 0))) | |
5026 | { | |
5027 | if ((mode0[1].opcode == (mode0[1].mask & bfd_getb32 (p + 4))) && | |
5028 | (mode0[2].opcode == (mode0[2].mask & bfd_getb32 (p + 8)))) | |
5029 | { | |
5030 | bfd_putb32 (patch[0] | (regidx << 15), p + 0); | |
5031 | bfd_putb32 (patch[1], p + 4); | |
5032 | bfd_putb32 (patch[2], p + 8); | |
5033 | rz = TRUE; | |
5034 | } | |
5035 | } | |
5036 | else if (mode1[0].opcode == (mode1[0].mask & bfd_getb32 (p + 0))) | |
5037 | { | |
5038 | if ((mode1[1].opcode == (mode1[1].mask & bfd_getb32 (p + 4))) && | |
5039 | (mode1[2].opcode == (mode1[2].mask & bfd_getb32 (p + 8)))) | |
5040 | { | |
5041 | bfd_putb32 (patch[0] | (regidx << 15), p + 0); | |
5042 | bfd_putb32 (patch[1], p + 4); | |
5043 | bfd_putb32 (patch[2], p + 8); | |
5044 | rz = TRUE; | |
5045 | } | |
5046 | } | |
5047 | ||
5048 | if (!rz) | |
5049 | { | |
5050 | printf ("%s: %s @ 0x%08x\n", __func__, ibfd->filename, | |
5051 | (int) rel->r_offset); | |
5052 | BFD_ASSERT(0); /* Unsupported pattern. */ | |
5053 | } | |
5054 | ||
5055 | return rz; | |
5056 | } | |
5057 | ||
5058 | static enum elf_nds32_tls_type | |
5059 | get_tls_type (enum elf_nds32_reloc_type r_type, struct elf_link_hash_entry *h); | |
5060 | ||
5061 | static unsigned int | |
5062 | ones32 (register unsigned int x) | |
5063 | { | |
5064 | /* 32-bit recursive reduction using SWAR... | |
5065 | but first step is mapping 2-bit values | |
5066 | into sum of 2 1-bit values in sneaky way. */ | |
5067 | x -= ((x >> 1) & 0x55555555); | |
5068 | x = (((x >> 2) & 0x33333333) + (x & 0x33333333)); | |
5069 | x = (((x >> 4) + x) & 0x0f0f0f0f); | |
5070 | x += (x >> 8); | |
5071 | x += (x >> 16); | |
5072 | return (x & 0x0000003f); | |
5073 | } | |
5074 | ||
a767a1c4 | 5075 | #if !HAVE_FLS |
fbaf61ad NC |
5076 | static unsigned int |
5077 | fls (register unsigned int x) | |
5078 | { | |
5079 | return ffs (x & (-x)); | |
5080 | } | |
a767a1c4 | 5081 | #endif /* !HAVE_FLS */ |
fbaf61ad NC |
5082 | |
5083 | #define nds32_elf_local_tlsdesc_gotent(bfd) \ | |
5084 | (elf_nds32_tdata (bfd)->local_tlsdesc_gotent) | |
5085 | ||
5086 | static bfd_boolean | |
5087 | nds32_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, | |
5088 | struct bfd_link_info * info, | |
5089 | bfd * input_bfd, | |
5090 | asection * input_section, | |
5091 | bfd_byte * contents, | |
5092 | Elf_Internal_Rela * relocs, | |
5093 | Elf_Internal_Sym * local_syms, | |
5094 | asection ** local_sections) | |
5095 | { | |
5096 | Elf_Internal_Shdr *symtab_hdr; | |
5097 | struct elf_link_hash_entry **sym_hashes; | |
5098 | Elf_Internal_Rela *rel, *relend; | |
5099 | bfd_boolean ret = TRUE; /* Assume success. */ | |
5100 | int align = 0; | |
5101 | bfd_reloc_status_type r; | |
5102 | const char *errmsg = NULL; | |
5103 | bfd_vma gp; | |
5104 | struct elf_link_hash_table *ehtab; | |
5105 | struct elf_nds32_link_hash_table *htab; | |
5106 | bfd *dynobj; | |
5107 | bfd_vma *local_got_offsets; | |
5108 | asection *sgot, *splt, *sreloc; | |
5109 | bfd_vma high_address; | |
5110 | struct elf_nds32_link_hash_table *table; | |
5111 | int eliminate_gc_relocs; | |
35c08157 KLC |
5112 | bfd_vma fpbase_addr; |
5113 | ||
5114 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
5115 | sym_hashes = elf_sym_hashes (input_bfd); | |
fbaf61ad | 5116 | ehtab = elf_hash_table (info); |
35c08157 KLC |
5117 | htab = nds32_elf_hash_table (info); |
5118 | high_address = bfd_get_section_limit (input_bfd, input_section); | |
5119 | ||
5120 | dynobj = htab->root.dynobj; | |
5121 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
5122 | ||
fbaf61ad NC |
5123 | sgot = ehtab->sgot; |
5124 | splt = ehtab->splt; | |
35c08157 KLC |
5125 | sreloc = NULL; |
5126 | ||
5127 | rel = relocs; | |
5128 | relend = relocs + input_section->reloc_count; | |
5129 | ||
5130 | table = nds32_elf_hash_table (info); | |
5131 | eliminate_gc_relocs = table->eliminate_gc_relocs; | |
fbaf61ad | 5132 | |
35c08157 | 5133 | /* By this time, we can adjust the value of _SDA_BASE_. */ |
fbaf61ad | 5134 | /* Explain _SDA_BASE_ */ |
0e1862bb | 5135 | if ((!bfd_link_relocatable (info))) |
35c08157 KLC |
5136 | { |
5137 | is_SDA_BASE_set = 1; | |
5138 | r = nds32_elf_final_sda_base (output_bfd, info, &gp, TRUE); | |
5139 | if (r != bfd_reloc_ok) | |
5140 | return FALSE; | |
5141 | } | |
5142 | ||
fbaf61ad NC |
5143 | /* Do TLS model conversion once at first. */ |
5144 | nds32_elf_unify_tls_model (input_bfd, input_section, contents, info); | |
5145 | ||
35c08157 KLC |
5146 | /* Use gp as fp to prevent truncated fit. Because in relaxation time |
5147 | the fp value is set as gp, and it has be reverted for instruction | |
5148 | setting fp. */ | |
5149 | fpbase_addr = elf_gp (output_bfd); | |
5150 | ||
fbaf61ad | 5151 | /* Deal with (dynamic) relocations. */ |
35c08157 KLC |
5152 | for (rel = relocs; rel < relend; rel++) |
5153 | { | |
5154 | enum elf_nds32_reloc_type r_type; | |
5155 | reloc_howto_type *howto = NULL; | |
5156 | unsigned long r_symndx; | |
5157 | struct elf_link_hash_entry *h = NULL; | |
5158 | Elf_Internal_Sym *sym = NULL; | |
5159 | asection *sec; | |
5160 | bfd_vma relocation; | |
fbaf61ad NC |
5161 | bfd_vma relocation_sym = 0xdeadbeef; |
5162 | Elf_Internal_Rela *lorel; | |
5163 | bfd_vma off; | |
35c08157 KLC |
5164 | |
5165 | /* We can't modify r_addend here as elf_link_input_bfd has an assert to | |
5166 | ensure it's zero (we use REL relocs, not RELA). Therefore this | |
5167 | should be assigning zero to `addend', but for clarity we use | |
5168 | `r_addend'. */ | |
5169 | ||
5170 | bfd_vma addend = rel->r_addend; | |
5171 | bfd_vma offset = rel->r_offset; | |
5172 | ||
5173 | r_type = ELF32_R_TYPE (rel->r_info); | |
5174 | if (r_type >= R_NDS32_max) | |
5175 | { | |
695344c0 | 5176 | /* xgettext:c-format */ |
0aa13fee | 5177 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
4eca0228 | 5178 | input_bfd, r_type); |
35c08157 KLC |
5179 | bfd_set_error (bfd_error_bad_value); |
5180 | ret = FALSE; | |
5181 | continue; | |
5182 | } | |
5183 | ||
5184 | if (r_type == R_NDS32_GNU_VTENTRY | |
5185 | || r_type == R_NDS32_GNU_VTINHERIT | |
5186 | || r_type == R_NDS32_NONE | |
5187 | || r_type == R_NDS32_RELA_GNU_VTENTRY | |
5188 | || r_type == R_NDS32_RELA_GNU_VTINHERIT | |
5189 | || (r_type >= R_NDS32_INSN16 && r_type <= R_NDS32_25_FIXED_RELA) | |
5190 | || r_type == R_NDS32_DATA | |
fbaf61ad | 5191 | || r_type == R_NDS32_TRAN) |
35c08157 KLC |
5192 | continue; |
5193 | ||
0c4bd9d9 KLC |
5194 | /* If we enter the fp-as-gp region. Resolve the address |
5195 | of best fp-base. */ | |
35c08157 KLC |
5196 | if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_BEGIN |
5197 | && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
5198 | { | |
5199 | int dist; | |
5200 | ||
5201 | /* Distance to relocation of best fp-base is encoded in R_SYM. */ | |
5202 | dist = rel->r_addend >> 16; | |
5203 | fpbase_addr = calculate_memory_address (input_bfd, rel + dist, | |
5204 | local_syms, symtab_hdr); | |
5205 | } | |
5206 | else if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_END | |
5207 | && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
5208 | { | |
5209 | fpbase_addr = elf_gp (output_bfd); | |
5210 | } | |
5211 | ||
fbaf61ad NC |
5212 | /* Skip the relocations used for relaxation. */ |
5213 | /* We have to update LONGCALL and LONGJUMP | |
5214 | relocations when generating the relocatable files. */ | |
5215 | if (!bfd_link_relocatable (info) | |
5216 | && (r_type >= R_NDS32_RELAX_ENTRY | |
5217 | || (r_type >= R_NDS32_LONGCALL4 | |
5218 | && r_type <= R_NDS32_LONGJUMP7))) | |
35c08157 KLC |
5219 | continue; |
5220 | ||
5221 | howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); | |
5222 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5223 | ||
5224 | /* This is a final link. */ | |
5225 | sym = NULL; | |
5226 | sec = NULL; | |
5227 | h = NULL; | |
5228 | ||
5229 | if (r_symndx < symtab_hdr->sh_info) | |
5230 | { | |
5231 | /* Local symbol. */ | |
5232 | sym = local_syms + r_symndx; | |
5233 | sec = local_sections[r_symndx]; | |
5234 | ||
5235 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
5236 | addend = rel->r_addend; | |
fbaf61ad NC |
5237 | |
5238 | /* keep symbol location for static TLS_IE GOT entry */ | |
5239 | relocation_sym = relocation; | |
5240 | if (bfd_link_relocatable (info)) | |
5241 | { | |
5242 | /* This is a relocatable link. We don't have to change | |
5243 | anything, unless the reloc is against a section symbol, | |
5244 | in which case we have to adjust according to where the | |
5245 | section symbol winds up in the output section. */ | |
5246 | if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
5247 | rel->r_addend += sec->output_offset + sym->st_value; | |
5248 | ||
5249 | continue; | |
5250 | } | |
35c08157 KLC |
5251 | } |
5252 | else | |
5253 | { | |
5254 | /* External symbol. */ | |
fbaf61ad NC |
5255 | if (bfd_link_relocatable (info)) |
5256 | continue; | |
35c08157 KLC |
5257 | bfd_boolean warned, ignored, unresolved_reloc; |
5258 | int symndx = r_symndx - symtab_hdr->sh_info; | |
5259 | ||
5260 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
5261 | r_symndx, symtab_hdr, sym_hashes, h, sec, | |
5262 | relocation, unresolved_reloc, warned, | |
5263 | ignored); | |
5264 | ||
fbaf61ad NC |
5265 | /* keep symbol location for static TLS_IE GOT entry */ |
5266 | relocation_sym = relocation; | |
5267 | ||
35c08157 KLC |
5268 | /* la $fp, _FP_BASE_ is per-function (region). |
5269 | Handle it specially. */ | |
5270 | switch ((int) r_type) | |
5271 | { | |
fbaf61ad NC |
5272 | case R_NDS32_HI20_RELA: |
5273 | case R_NDS32_LO12S0_RELA: | |
5274 | if (strcmp (elf_sym_hashes (input_bfd)[symndx]->root.root.string, | |
5275 | FP_BASE_NAME) == 0) | |
5276 | { | |
5277 | if (!bfd_link_pie (info)) | |
5278 | { | |
5279 | _bfd_error_handler | |
5280 | ("%pB: warning: _FP_BASE_ setting insns relaxation failed.", | |
5281 | input_bfd); | |
5282 | } | |
5283 | relocation = fpbase_addr; | |
5284 | } | |
5285 | break; | |
35c08157 KLC |
5286 | case R_NDS32_SDA19S0_RELA: |
5287 | case R_NDS32_SDA15S0_RELA: | |
5288 | case R_NDS32_20_RELA: | |
5289 | if (strcmp (elf_sym_hashes (input_bfd)[symndx]->root.root.string, | |
5290 | FP_BASE_NAME) == 0) | |
5291 | { | |
5292 | relocation = fpbase_addr; | |
5293 | break; | |
5294 | } | |
5295 | } | |
35c08157 KLC |
5296 | } |
5297 | ||
5298 | /* Sanity check the address. */ | |
5299 | if (offset > high_address) | |
5300 | { | |
5301 | r = bfd_reloc_outofrange; | |
5302 | goto check_reloc; | |
5303 | } | |
5304 | ||
fbaf61ad | 5305 | if (r_type >= R_NDS32_RELAX_ENTRY) |
35c08157 KLC |
5306 | continue; |
5307 | ||
5308 | switch ((int) r_type) | |
5309 | { | |
5310 | case R_NDS32_GOTOFF: | |
5311 | /* Relocation is relative to the start of the global offset | |
5312 | table (for ld24 rx, #uimm24), e.g. access at label+addend | |
5313 | ||
5314 | ld24 rx. #label@GOTOFF + addend | |
5315 | sub rx, r12. */ | |
5316 | case R_NDS32_GOTOFF_HI20: | |
5317 | case R_NDS32_GOTOFF_LO12: | |
5318 | case R_NDS32_GOTOFF_LO15: | |
5319 | case R_NDS32_GOTOFF_LO19: | |
5320 | BFD_ASSERT (sgot != NULL); | |
5321 | ||
5322 | relocation -= elf_gp (output_bfd); | |
5323 | break; | |
5324 | ||
5325 | case R_NDS32_9_PLTREL: | |
5326 | case R_NDS32_25_PLTREL: | |
5327 | /* Relocation is to the entry for this symbol in the | |
5328 | procedure linkage table. */ | |
5329 | ||
5330 | /* The native assembler will generate a 25_PLTREL reloc | |
5331 | for a local symbol if you assemble a call from one | |
5332 | section to another when using -K pic. */ | |
5333 | if (h == NULL) | |
5334 | break; | |
5335 | ||
5336 | if (h->forced_local) | |
5337 | break; | |
5338 | ||
5339 | /* We didn't make a PLT entry for this symbol. This | |
5340 | happens when statically linking PIC code, or when | |
5341 | using -Bsymbolic. */ | |
5342 | if (h->plt.offset == (bfd_vma) - 1) | |
5343 | break; | |
5344 | ||
5345 | relocation = (splt->output_section->vma | |
5346 | + splt->output_offset + h->plt.offset); | |
5347 | break; | |
5348 | ||
5349 | case R_NDS32_PLT_GOTREL_HI20: | |
5350 | case R_NDS32_PLT_GOTREL_LO12: | |
5351 | case R_NDS32_PLT_GOTREL_LO15: | |
5352 | case R_NDS32_PLT_GOTREL_LO19: | |
5353 | case R_NDS32_PLT_GOTREL_LO20: | |
fbaf61ad NC |
5354 | if (h == NULL |
5355 | || h->forced_local | |
5356 | || h->plt.offset == (bfd_vma) -1 | |
5357 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 | 5358 | { |
fbaf61ad NC |
5359 | /* Maybe we should find better checking to optimize |
5360 | PIE PLT relocations. */ | |
35c08157 KLC |
5361 | /* We didn't make a PLT entry for this symbol. This |
5362 | happens when statically linking PIC code, or when | |
5363 | using -Bsymbolic. */ | |
fbaf61ad NC |
5364 | if (h) |
5365 | h->plt.offset = (bfd_vma) -1; /* Cancel PLT trampoline. */ | |
35c08157 KLC |
5366 | relocation -= elf_gp (output_bfd); |
5367 | break; | |
5368 | } | |
5369 | ||
5370 | relocation = (splt->output_section->vma | |
5371 | + splt->output_offset + h->plt.offset); | |
5372 | ||
5373 | relocation -= elf_gp (output_bfd); | |
5374 | break; | |
5375 | ||
5376 | case R_NDS32_PLTREL_HI20: | |
5377 | case R_NDS32_PLTREL_LO12: | |
5378 | ||
5379 | /* Relocation is to the entry for this symbol in the | |
5380 | procedure linkage table. */ | |
5381 | ||
5382 | /* The native assembler will generate a 25_PLTREL reloc | |
5383 | for a local symbol if you assemble a call from one | |
5384 | section to another when using -K pic. */ | |
5385 | if (h == NULL) | |
5386 | break; | |
5387 | ||
5388 | if (h->forced_local) | |
5389 | break; | |
5390 | ||
5391 | if (h->plt.offset == (bfd_vma) - 1) | |
5392 | /* We didn't make a PLT entry for this symbol. This | |
5393 | happens when statically linking PIC code, or when | |
5394 | using -Bsymbolic. */ | |
5395 | break; | |
5396 | ||
5397 | if (splt == NULL) | |
5398 | break; | |
5399 | ||
5400 | relocation = (splt->output_section->vma | |
5401 | + splt->output_offset | |
5402 | + h->plt.offset + 4) | |
5403 | - (input_section->output_section->vma | |
5404 | + input_section->output_offset | |
5405 | + rel->r_offset); | |
5406 | ||
5407 | break; | |
5408 | ||
5409 | case R_NDS32_GOTPC20: | |
5410 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation | |
5411 | ld24 rx,#_GLOBAL_OFFSET_TABLE_ */ | |
5412 | relocation = elf_gp (output_bfd); | |
5413 | break; | |
5414 | ||
5415 | case R_NDS32_GOTPC_HI20: | |
5416 | case R_NDS32_GOTPC_LO12: | |
fbaf61ad NC |
5417 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation |
5418 | bl .+4 | |
5419 | seth rx,#high(_GLOBAL_OFFSET_TABLE_) | |
5420 | or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) | |
5421 | or | |
5422 | bl .+4 | |
5423 | seth rx,#shigh(_GLOBAL_OFFSET_TABLE_) | |
5424 | add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) */ | |
5425 | relocation = elf_gp (output_bfd); | |
5426 | relocation -= (input_section->output_section->vma | |
5427 | + input_section->output_offset + rel->r_offset); | |
5428 | break; | |
35c08157 KLC |
5429 | |
5430 | case R_NDS32_GOT20: | |
5431 | /* Fall through. */ | |
5432 | case R_NDS32_GOT_HI20: | |
5433 | case R_NDS32_GOT_LO12: | |
5434 | case R_NDS32_GOT_LO15: | |
5435 | case R_NDS32_GOT_LO19: | |
5436 | /* Relocation is to the entry for this symbol in the global | |
5437 | offset table. */ | |
5438 | BFD_ASSERT (sgot != NULL); | |
5439 | ||
5440 | if (h != NULL) | |
5441 | { | |
fbaf61ad | 5442 | /* External symbol */ |
35c08157 | 5443 | bfd_boolean dyn; |
35c08157 KLC |
5444 | |
5445 | off = h->got.offset; | |
5446 | BFD_ASSERT (off != (bfd_vma) - 1); | |
5447 | dyn = htab->root.dynamic_sections_created; | |
0e1862bb L |
5448 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
5449 | bfd_link_pic (info), | |
5450 | h) | |
5451 | || (bfd_link_pic (info) | |
35c08157 KLC |
5452 | && (info->symbolic |
5453 | || h->dynindx == -1 | |
5454 | || h->forced_local) && h->def_regular)) | |
5455 | { | |
5456 | /* This is actually a static link, or it is a | |
5457 | -Bsymbolic link and the symbol is defined | |
5458 | locally, or the symbol was forced to be local | |
5459 | because of a version file. We must initialize | |
5460 | this entry in the global offset table. Since the | |
5461 | offset must always be a multiple of 4, we use the | |
5462 | least significant bit to record whether we have | |
5463 | initialized it already. | |
5464 | ||
5465 | When doing a dynamic link, we create a .rela.got | |
5466 | relocation entry to initialize the value. This | |
5467 | is done in the finish_dynamic_symbol routine. */ | |
fbaf61ad | 5468 | if ((off & 1) != 0) /* clear LSB */ |
35c08157 KLC |
5469 | off &= ~1; |
5470 | else | |
5471 | { | |
5472 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5473 | h->got.offset |= 1; | |
5474 | } | |
5475 | } | |
5476 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
5477 | - elf_gp (output_bfd); | |
5478 | } | |
5479 | else | |
5480 | { | |
fbaf61ad | 5481 | /* Local symbol */ |
35c08157 KLC |
5482 | bfd_byte *loc; |
5483 | ||
5484 | BFD_ASSERT (local_got_offsets != NULL | |
5485 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
5486 | ||
5487 | off = local_got_offsets[r_symndx]; | |
5488 | ||
5489 | /* The offset must always be a multiple of 4. We use | |
5490 | the least significant bit to record whether we have | |
5491 | already processed this entry. */ | |
fbaf61ad | 5492 | if ((off & 1) != 0) /* clear LSB */ |
35c08157 KLC |
5493 | off &= ~1; |
5494 | else | |
5495 | { | |
5496 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5497 | ||
0e1862bb | 5498 | if (bfd_link_pic (info)) |
35c08157 KLC |
5499 | { |
5500 | asection *srelgot; | |
5501 | Elf_Internal_Rela outrel; | |
5502 | ||
5503 | /* We need to generate a R_NDS32_RELATIVE reloc | |
5504 | for the dynamic linker. */ | |
fbaf61ad | 5505 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
35c08157 KLC |
5506 | BFD_ASSERT (srelgot != NULL); |
5507 | ||
5508 | outrel.r_offset = (elf_gp (output_bfd) | |
5509 | + sgot->output_offset + off); | |
5510 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
5511 | outrel.r_addend = relocation; | |
5512 | loc = srelgot->contents; | |
5513 | loc += | |
5514 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
5515 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5516 | ++srelgot->reloc_count; | |
5517 | } | |
5518 | local_got_offsets[r_symndx] |= 1; | |
5519 | } | |
5520 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
5521 | - elf_gp (output_bfd); | |
5522 | } | |
5523 | ||
5524 | break; | |
5525 | ||
5526 | case R_NDS32_16_RELA: | |
5527 | case R_NDS32_20_RELA: | |
5528 | case R_NDS32_5_RELA: | |
5529 | case R_NDS32_32_RELA: | |
5530 | case R_NDS32_9_PCREL_RELA: | |
5531 | case R_NDS32_WORD_9_PCREL_RELA: | |
5532 | case R_NDS32_10_UPCREL_RELA: | |
5533 | case R_NDS32_15_PCREL_RELA: | |
5534 | case R_NDS32_17_PCREL_RELA: | |
5535 | case R_NDS32_25_PCREL_RELA: | |
5536 | case R_NDS32_HI20_RELA: | |
5537 | case R_NDS32_LO12S3_RELA: | |
5538 | case R_NDS32_LO12S2_RELA: | |
5539 | case R_NDS32_LO12S2_DP_RELA: | |
5540 | case R_NDS32_LO12S2_SP_RELA: | |
5541 | case R_NDS32_LO12S1_RELA: | |
5542 | case R_NDS32_LO12S0_RELA: | |
5543 | case R_NDS32_LO12S0_ORI_RELA: | |
0e1862bb | 5544 | if (bfd_link_pic (info) && r_symndx != 0 |
35c08157 KLC |
5545 | && (input_section->flags & SEC_ALLOC) != 0 |
5546 | && (eliminate_gc_relocs == 0 | |
5547 | || (sec && (sec->flags & SEC_EXCLUDE) == 0)) | |
5548 | && ((r_type != R_NDS32_9_PCREL_RELA | |
5549 | && r_type != R_NDS32_WORD_9_PCREL_RELA | |
5550 | && r_type != R_NDS32_10_UPCREL_RELA | |
5551 | && r_type != R_NDS32_15_PCREL_RELA | |
5552 | && r_type != R_NDS32_17_PCREL_RELA | |
5553 | && r_type != R_NDS32_25_PCREL_RELA | |
5554 | && !(r_type == R_NDS32_32_RELA | |
5555 | && strcmp (input_section->name, ".eh_frame") == 0)) | |
5556 | || (h != NULL && h->dynindx != -1 | |
5557 | && (!info->symbolic || !h->def_regular)))) | |
5558 | { | |
5559 | Elf_Internal_Rela outrel; | |
5560 | bfd_boolean skip, relocate; | |
5561 | bfd_byte *loc; | |
5562 | ||
5563 | /* When generating a shared object, these relocations | |
5564 | are copied into the output file to be resolved at run | |
5565 | time. */ | |
5566 | ||
5567 | if (sreloc == NULL) | |
5568 | { | |
5569 | const char *name; | |
5570 | ||
5571 | name = bfd_elf_string_from_elf_section | |
5572 | (input_bfd, elf_elfheader (input_bfd)->e_shstrndx, | |
5573 | elf_section_data (input_section)->rela.hdr->sh_name); | |
5574 | if (name == NULL) | |
5575 | return FALSE; | |
5576 | ||
5577 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
fd361982 | 5578 | && strcmp (bfd_section_name (input_section), |
35c08157 KLC |
5579 | name + 5) == 0); |
5580 | ||
5581 | sreloc = bfd_get_section_by_name (dynobj, name); | |
5582 | BFD_ASSERT (sreloc != NULL); | |
5583 | } | |
5584 | ||
5585 | skip = FALSE; | |
5586 | relocate = FALSE; | |
5587 | ||
5588 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, | |
5589 | info, | |
5590 | input_section, | |
5591 | rel->r_offset); | |
5592 | if (outrel.r_offset == (bfd_vma) - 1) | |
5593 | skip = TRUE; | |
5594 | else if (outrel.r_offset == (bfd_vma) - 2) | |
5595 | skip = TRUE, relocate = TRUE; | |
5596 | outrel.r_offset += (input_section->output_section->vma | |
5597 | + input_section->output_offset); | |
5598 | ||
5599 | if (skip) | |
5600 | memset (&outrel, 0, sizeof outrel); | |
5601 | else if (r_type == R_NDS32_17_PCREL_RELA | |
5602 | || r_type == R_NDS32_15_PCREL_RELA | |
5603 | || r_type == R_NDS32_25_PCREL_RELA) | |
5604 | { | |
5605 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
5606 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
5607 | outrel.r_addend = rel->r_addend; | |
5608 | } | |
5609 | else | |
5610 | { | |
5611 | /* h->dynindx may be -1 if this symbol was marked to | |
5612 | become local. */ | |
5613 | if (h == NULL | |
5614 | || ((info->symbolic || h->dynindx == -1) | |
fbaf61ad NC |
5615 | && h->def_regular) |
5616 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
5617 | { |
5618 | relocate = TRUE; | |
5619 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
5620 | outrel.r_addend = relocation + rel->r_addend; | |
fbaf61ad NC |
5621 | |
5622 | if (h) | |
5623 | { | |
5624 | h->plt.offset = (bfd_vma) -1; /* cancel PLT trampoline. */ | |
5625 | ||
5626 | BFD_ASSERT (sgot != NULL); | |
5627 | /* If we did not allocate got entry for the symbol, | |
5628 | we can not fill the nonexistent got entry. */ | |
5629 | if (h->got.offset != (bfd_vma) -1 | |
5630 | && (h->got.offset & 1) == 0) | |
5631 | { | |
5632 | bfd_put_32 (output_bfd, outrel.r_addend, | |
5633 | sgot->contents + h->got.offset); | |
5634 | } | |
5635 | } | |
35c08157 KLC |
5636 | } |
5637 | else | |
5638 | { | |
fbaf61ad NC |
5639 | if (h->dynindx == -1) |
5640 | { | |
5641 | _bfd_error_handler | |
acef8081 | 5642 | (_("%pB: relocation %s against `%s' can not be used when " |
fbaf61ad NC |
5643 | "making a shared object; recompile with -fPIC"), |
5644 | input_bfd, nds32_elf_howto_table[r_type].name, h->root.root.string); | |
5645 | bfd_set_error (bfd_error_bad_value); | |
5646 | return FALSE; | |
5647 | } | |
5648 | ||
35c08157 KLC |
5649 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
5650 | outrel.r_addend = rel->r_addend; | |
5651 | } | |
5652 | } | |
5653 | ||
5654 | loc = sreloc->contents; | |
5655 | loc += sreloc->reloc_count * sizeof (Elf32_External_Rela); | |
5656 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5657 | ++sreloc->reloc_count; | |
5658 | ||
5659 | /* If this reloc is against an external symbol, we do | |
5660 | not want to fiddle with the addend. Otherwise, we | |
5661 | need to include the symbol value so that it becomes | |
5662 | an addend for the dynamic reloc. */ | |
5663 | if (!relocate) | |
5664 | continue; | |
5665 | } | |
5666 | break; | |
5667 | ||
5668 | case R_NDS32_25_ABS_RELA: | |
0e1862bb | 5669 | if (bfd_link_pic (info)) |
35c08157 | 5670 | { |
4eca0228 | 5671 | _bfd_error_handler |
38f14ab8 AM |
5672 | (_("%pB: warning: %s unsupported in shared mode"), |
5673 | input_bfd, "R_NDS32_25_ABS_RELA"); | |
35c08157 KLC |
5674 | return FALSE; |
5675 | } | |
5676 | break; | |
5677 | ||
5678 | case R_NDS32_9_PCREL: | |
5679 | r = nds32_elf_do_9_pcrel_reloc (input_bfd, howto, input_section, | |
5680 | contents, offset, | |
5681 | sec, relocation, addend); | |
5682 | goto check_reloc; | |
5683 | ||
5684 | case R_NDS32_HI20: | |
fbaf61ad NC |
5685 | /* We allow an arbitrary number of HI20 relocs before the |
5686 | LO12 reloc. This permits gcc to emit the HI and LO relocs | |
5687 | itself. */ | |
5688 | for (lorel = rel + 1; | |
5689 | (lorel < relend | |
5690 | && ELF32_R_TYPE (lorel->r_info) == R_NDS32_HI20); lorel++) | |
5691 | continue; | |
5692 | if (lorel < relend | |
5693 | && (ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S3 | |
5694 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S2 | |
5695 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S1 | |
5696 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S0)) | |
35c08157 | 5697 | { |
fbaf61ad NC |
5698 | nds32_elf_relocate_hi20 (input_bfd, r_type, rel, lorel, |
5699 | contents, relocation + addend); | |
5700 | r = bfd_reloc_ok; | |
35c08157 | 5701 | } |
fbaf61ad NC |
5702 | else |
5703 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5704 | contents, offset, relocation, | |
5705 | addend); | |
35c08157 KLC |
5706 | goto check_reloc; |
5707 | ||
5708 | case R_NDS32_GOT17S2_RELA: | |
5709 | case R_NDS32_GOT15S2_RELA: | |
fbaf61ad NC |
5710 | BFD_ASSERT (sgot != NULL); |
5711 | ||
5712 | if (h != NULL) | |
35c08157 | 5713 | { |
fbaf61ad | 5714 | bfd_boolean dyn; |
35c08157 | 5715 | |
fbaf61ad NC |
5716 | off = h->got.offset; |
5717 | BFD_ASSERT (off != (bfd_vma) - 1); | |
35c08157 | 5718 | |
fbaf61ad NC |
5719 | dyn = htab->root.dynamic_sections_created; |
5720 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL | |
5721 | (dyn, bfd_link_pic (info), h) | |
5722 | || (bfd_link_pic (info) | |
5723 | && (info->symbolic | |
5724 | || h->dynindx == -1 | |
5725 | || h->forced_local) | |
5726 | && h->def_regular)) | |
35c08157 | 5727 | { |
fbaf61ad NC |
5728 | /* This is actually a static link, or it is a |
5729 | -Bsymbolic link and the symbol is defined | |
5730 | locally, or the symbol was forced to be local | |
5731 | because of a version file. We must initialize | |
5732 | this entry in the global offset table. Since the | |
5733 | offset must always be a multiple of 4, we use the | |
5734 | least significant bit to record whether we have | |
5735 | initialized it already. | |
5736 | ||
5737 | When doing a dynamic link, we create a .rela.got | |
5738 | relocation entry to initialize the value. This | |
5739 | is done in the finish_dynamic_symbol routine. */ | |
5740 | if ((off & 1) != 0) | |
5741 | off &= ~1; | |
5742 | else | |
35c08157 | 5743 | { |
fbaf61ad NC |
5744 | bfd_put_32 (output_bfd, relocation, |
5745 | sgot->contents + off); | |
5746 | h->got.offset |= 1; | |
35c08157 KLC |
5747 | } |
5748 | } | |
fbaf61ad NC |
5749 | } |
5750 | else | |
5751 | { | |
5752 | bfd_byte *loc; | |
35c08157 | 5753 | |
fbaf61ad NC |
5754 | BFD_ASSERT (local_got_offsets != NULL |
5755 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
35c08157 | 5756 | |
fbaf61ad | 5757 | off = local_got_offsets[r_symndx]; |
35c08157 | 5758 | |
fbaf61ad NC |
5759 | /* The offset must always be a multiple of 4. We use |
5760 | the least significant bit to record whether we have | |
5761 | already processed this entry. */ | |
5762 | if ((off & 1) != 0) | |
5763 | off &= ~1; | |
5764 | else | |
5765 | { | |
5766 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5767 | ||
5768 | if (bfd_link_pic (info)) | |
35c08157 | 5769 | { |
fbaf61ad NC |
5770 | asection *srelgot; |
5771 | Elf_Internal_Rela outrel; | |
35c08157 | 5772 | |
fbaf61ad NC |
5773 | /* We need to generate a R_NDS32_RELATIVE reloc |
5774 | for the dynamic linker. */ | |
5775 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
5776 | BFD_ASSERT (srelgot != NULL); | |
5777 | ||
5778 | outrel.r_offset = (elf_gp (output_bfd) | |
5779 | + sgot->output_offset + off); | |
5780 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
5781 | outrel.r_addend = relocation; | |
5782 | loc = srelgot->contents; | |
5783 | loc += | |
5784 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
5785 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5786 | ++srelgot->reloc_count; | |
35c08157 | 5787 | } |
fbaf61ad | 5788 | local_got_offsets[r_symndx] |= 1; |
35c08157 | 5789 | } |
35c08157 | 5790 | } |
fbaf61ad NC |
5791 | relocation = sgot->output_section->vma + sgot->output_offset + off |
5792 | - elf_gp (output_bfd); | |
5793 | ||
35c08157 KLC |
5794 | if (relocation & align) |
5795 | { | |
5796 | /* Incorrect alignment. */ | |
4eca0228 | 5797 | _bfd_error_handler |
38f14ab8 | 5798 | (_("%pB: warning: unaligned access to GOT entry"), input_bfd); |
35c08157 KLC |
5799 | ret = FALSE; |
5800 | r = bfd_reloc_dangerous; | |
5801 | goto check_reloc; | |
5802 | } | |
5803 | break; | |
5804 | ||
5805 | case R_NDS32_SDA16S3_RELA: | |
5806 | case R_NDS32_SDA15S3_RELA: | |
5807 | case R_NDS32_SDA15S3: | |
5808 | align = 0x7; | |
5809 | goto handle_sda; | |
5810 | ||
5811 | case R_NDS32_SDA17S2_RELA: | |
5812 | case R_NDS32_SDA15S2_RELA: | |
5813 | case R_NDS32_SDA12S2_SP_RELA: | |
5814 | case R_NDS32_SDA12S2_DP_RELA: | |
5815 | case R_NDS32_SDA15S2: | |
5816 | case R_NDS32_SDA_FP7U2_RELA: | |
5817 | align = 0x3; | |
5818 | goto handle_sda; | |
5819 | ||
5820 | case R_NDS32_SDA18S1_RELA: | |
5821 | case R_NDS32_SDA15S1_RELA: | |
5822 | case R_NDS32_SDA15S1: | |
5823 | align = 0x1; | |
5824 | goto handle_sda; | |
5825 | ||
5826 | case R_NDS32_SDA19S0_RELA: | |
5827 | case R_NDS32_SDA15S0_RELA: | |
5828 | case R_NDS32_SDA15S0: | |
fbaf61ad | 5829 | align = 0x0; |
dc1e8a47 | 5830 | handle_sda: |
fbaf61ad | 5831 | BFD_ASSERT (sec != NULL); |
35c08157 | 5832 | |
fbaf61ad NC |
5833 | /* If the symbol is in the abs section, the out_bfd will be null. |
5834 | This happens when the relocation has a symbol@GOTOFF. */ | |
5835 | r = nds32_elf_final_sda_base (output_bfd, info, &gp, FALSE); | |
5836 | if (r != bfd_reloc_ok) | |
5837 | { | |
5838 | _bfd_error_handler | |
5839 | (_("%pB: warning: relocate SDA_BASE failed"), input_bfd); | |
5840 | ret = FALSE; | |
5841 | goto check_reloc; | |
5842 | } | |
35c08157 | 5843 | |
fbaf61ad NC |
5844 | /* At this point `relocation' contains the object's |
5845 | address. */ | |
5846 | if (r_type == R_NDS32_SDA_FP7U2_RELA) | |
5847 | { | |
5848 | relocation -= fpbase_addr; | |
5849 | } | |
5850 | else | |
5851 | relocation -= gp; | |
5852 | /* Now it contains the offset from _SDA_BASE_. */ | |
35c08157 | 5853 | |
fbaf61ad | 5854 | /* Make sure alignment is correct. */ |
35c08157 | 5855 | |
fbaf61ad NC |
5856 | if (relocation & align) |
5857 | { | |
5858 | /* Incorrect alignment. */ | |
5859 | _bfd_error_handler | |
5860 | /* xgettext:c-format */ | |
5861 | (_("%pB(%pA): warning: unaligned small data access" | |
5862 | " of type %d"), | |
5863 | input_bfd, input_section, r_type); | |
5864 | ret = FALSE; | |
5865 | goto check_reloc; | |
35c08157 | 5866 | } |
35c08157 | 5867 | break; |
fbaf61ad | 5868 | |
35c08157 KLC |
5869 | case R_NDS32_17IFC_PCREL_RELA: |
5870 | case R_NDS32_10IFCU_PCREL_RELA: | |
fbaf61ad | 5871 | /* Do nothing. */ |
35c08157 KLC |
5872 | break; |
5873 | ||
1c8f6a4d KLC |
5874 | case R_NDS32_TLS_LE_HI20: |
5875 | case R_NDS32_TLS_LE_LO12: | |
5876 | case R_NDS32_TLS_LE_20: | |
5877 | case R_NDS32_TLS_LE_15S0: | |
5878 | case R_NDS32_TLS_LE_15S1: | |
5879 | case R_NDS32_TLS_LE_15S2: | |
fbaf61ad NC |
5880 | /* We do not have garbage collection for got entries. |
5881 | Therefore, IE to LE may have one empty entry, and DESC to | |
5882 | LE may have two. */ | |
1c8f6a4d KLC |
5883 | if (elf_hash_table (info)->tls_sec != NULL) |
5884 | relocation -= (elf_hash_table (info)->tls_sec->vma + TP_OFFSET); | |
5885 | break; | |
fbaf61ad | 5886 | |
1c8f6a4d KLC |
5887 | case R_NDS32_TLS_IE_HI20: |
5888 | case R_NDS32_TLS_IE_LO12S2: | |
fbaf61ad NC |
5889 | case R_NDS32_TLS_DESC_HI20: |
5890 | case R_NDS32_TLS_DESC_LO12: | |
5891 | case R_NDS32_TLS_IE_LO12: | |
5892 | case R_NDS32_TLS_IEGP_HI20: | |
5893 | case R_NDS32_TLS_IEGP_LO12: | |
5894 | case R_NDS32_TLS_IEGP_LO12S2: | |
1c8f6a4d KLC |
5895 | { |
5896 | /* Relocation is to the entry for this symbol in the global | |
5897 | offset table. */ | |
fbaf61ad | 5898 | enum elf_nds32_tls_type tls_type, org_tls_type, eff_tls_type; |
1c8f6a4d KLC |
5899 | asection *srelgot; |
5900 | Elf_Internal_Rela outrel; | |
1c8f6a4d KLC |
5901 | bfd_byte *loc; |
5902 | int indx = 0; | |
5903 | ||
fbaf61ad NC |
5904 | eff_tls_type = org_tls_type = get_tls_type (r_type, h); |
5905 | ||
1c8f6a4d KLC |
5906 | BFD_ASSERT (sgot != NULL); |
5907 | if (h != NULL) | |
5908 | { | |
5909 | bfd_boolean dyn; | |
5910 | ||
5911 | off = h->got.offset; | |
fbaf61ad | 5912 | BFD_ASSERT (off != (bfd_vma) -1); |
1c8f6a4d KLC |
5913 | dyn = htab->root.dynamic_sections_created; |
5914 | tls_type = ((struct elf_nds32_link_hash_entry *) h)->tls_type; | |
0e1862bb L |
5915 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
5916 | && (!bfd_link_pic (info) | |
1c8f6a4d KLC |
5917 | || !SYMBOL_REFERENCES_LOCAL (info, h))) |
5918 | indx = h->dynindx; | |
5919 | } | |
5920 | else | |
5921 | { | |
1c8f6a4d KLC |
5922 | BFD_ASSERT (local_got_offsets != NULL |
5923 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
1c8f6a4d | 5924 | off = local_got_offsets[r_symndx]; |
1c8f6a4d KLC |
5925 | tls_type = elf32_nds32_local_got_tls_type (input_bfd)[r_symndx]; |
5926 | } | |
fbaf61ad | 5927 | |
1c8f6a4d KLC |
5928 | relocation = sgot->output_section->vma + sgot->output_offset + off; |
5929 | ||
fbaf61ad NC |
5930 | if (1 < ones32 (tls_type)) |
5931 | { | |
5932 | eff_tls_type = 1 << (fls (tls_type) - 1); | |
5933 | /* TLS model shall be handled in nds32_elf_unify_tls_model (). */ | |
5934 | ||
5935 | /* TLS model X -> LE is not implement yet! | |
5936 | workaround here! */ | |
5937 | if (eff_tls_type == GOT_TLS_LE) | |
5938 | { | |
5939 | eff_tls_type = 1 << (fls (tls_type ^ eff_tls_type) - 1); | |
5940 | } | |
5941 | } | |
1c8f6a4d KLC |
5942 | |
5943 | /* The offset must always be a multiple of 4. We use | |
5944 | the least significant bit to record whether we have | |
5945 | already processed this entry. */ | |
fbaf61ad NC |
5946 | bfd_boolean need_relocs = FALSE; |
5947 | srelgot = ehtab->srelgot; | |
5948 | if ((bfd_link_pic (info) || indx != 0) | |
5949 | && (h == NULL || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5950 | || h->root.type != bfd_link_hash_undefweak)) | |
5951 | { | |
5952 | need_relocs = TRUE; | |
5953 | BFD_ASSERT (srelgot != NULL); | |
5954 | } | |
5955 | ||
5956 | if (off & 1) | |
5957 | { | |
5958 | off &= ~1; | |
5959 | relocation &= ~1; | |
5960 | ||
5961 | if (eff_tls_type & GOT_TLS_DESC) | |
5962 | { | |
5963 | relocation -= elf_gp (output_bfd); | |
5964 | if ((R_NDS32_TLS_DESC_HI20 == r_type) && (!need_relocs)) | |
5965 | { | |
5966 | /* TLS model shall be converted. */ | |
5967 | BFD_ASSERT(0); | |
5968 | } | |
5969 | } | |
5970 | else if (eff_tls_type & GOT_TLS_IEGP) | |
5971 | { | |
5972 | relocation -= elf_gp (output_bfd); | |
5973 | } | |
5974 | } | |
1c8f6a4d KLC |
5975 | else |
5976 | { | |
fbaf61ad | 5977 | if ((eff_tls_type & GOT_TLS_LE) && (tls_type ^ eff_tls_type)) |
1c8f6a4d | 5978 | { |
fbaf61ad NC |
5979 | /* TLS model workaround shall be applied. */ |
5980 | BFD_ASSERT(0); | |
1c8f6a4d | 5981 | } |
fbaf61ad | 5982 | else if (eff_tls_type & (GOT_TLS_IE | GOT_TLS_IEGP)) |
1c8f6a4d | 5983 | { |
fbaf61ad NC |
5984 | if (eff_tls_type & GOT_TLS_IEGP) |
5985 | relocation -= elf_gp(output_bfd); | |
5986 | ||
1c8f6a4d KLC |
5987 | if (need_relocs) |
5988 | { | |
fbaf61ad NC |
5989 | if (indx == 0) |
5990 | outrel.r_addend = gottpoff (info, relocation_sym); | |
1c8f6a4d KLC |
5991 | else |
5992 | outrel.r_addend = 0; | |
5993 | outrel.r_offset = (sgot->output_section->vma | |
fbaf61ad NC |
5994 | + sgot->output_offset + off); |
5995 | outrel.r_info = ELF32_R_INFO (indx, R_NDS32_TLS_TPOFF); | |
5996 | ||
5997 | elf32_nds32_add_dynreloc (output_bfd, info, srelgot, | |
5998 | &outrel); | |
1c8f6a4d KLC |
5999 | } |
6000 | else | |
fbaf61ad NC |
6001 | { |
6002 | bfd_put_32 (output_bfd, gottpoff (info, relocation_sym), | |
6003 | sgot->contents + off); | |
6004 | } | |
1c8f6a4d | 6005 | } |
fbaf61ad NC |
6006 | else if (eff_tls_type & GOT_TLS_DESC) |
6007 | { | |
6008 | relocation -= elf_gp (output_bfd); | |
6009 | if (need_relocs) | |
6010 | { | |
6011 | if (indx == 0) | |
6012 | outrel.r_addend = gottpoff (info, relocation_sym); | |
6013 | else | |
6014 | outrel.r_addend = 0; | |
6015 | outrel.r_offset = (sgot->output_section->vma | |
6016 | + sgot->output_offset + off); | |
6017 | outrel.r_info = ELF32_R_INFO (indx, R_NDS32_TLS_DESC); | |
6018 | ||
6019 | if (htab->tls_desc_trampoline) | |
6020 | { | |
6021 | asection *srelplt; | |
6022 | srelplt = ehtab->srelplt; | |
6023 | loc = srelplt->contents; | |
6024 | loc += htab->next_tls_desc_index++ * sizeof (Elf32_External_Rela); | |
6025 | BFD_ASSERT (loc + sizeof (Elf32_External_Rela) | |
6026 | <= srelplt->contents + srelplt->size); | |
6027 | ||
6028 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
6029 | } | |
6030 | else | |
6031 | { | |
6032 | loc = srelgot->contents; | |
6033 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
6034 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
6035 | ++srelgot->reloc_count; | |
6036 | } | |
6037 | } | |
6038 | else | |
6039 | { | |
6040 | /* feed me! */ | |
6041 | bfd_put_32 (output_bfd, 0xdeadbeef, | |
6042 | sgot->contents + off); | |
6043 | bfd_put_32 (output_bfd, gottpoff (info, relocation_sym), | |
6044 | sgot->contents + off + 4); | |
6045 | patch_tls_desc_to_ie (contents, rel, input_bfd); | |
6046 | BFD_ASSERT(0); | |
6047 | } | |
6048 | } | |
6049 | else | |
6050 | { | |
6051 | /* TLS model workaround shall be applied. */ | |
6052 | BFD_ASSERT(0); | |
6053 | } | |
6054 | ||
6055 | if (h != NULL) | |
6056 | h->got.offset |= 1; | |
6057 | else | |
6058 | local_got_offsets[r_symndx] |= 1; | |
6059 | } | |
6060 | } | |
6061 | break; | |
6062 | /* DON'T fall through. */ | |
6063 | ||
6064 | default: | |
6065 | /* OLD_NDS32_RELOC. */ | |
6066 | ||
6067 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
6068 | contents, offset, relocation, addend); | |
6069 | goto check_reloc; | |
6070 | } | |
6071 | ||
6072 | switch ((int) r_type) | |
6073 | { | |
35c08157 KLC |
6074 | case R_NDS32_20_RELA: |
6075 | case R_NDS32_5_RELA: | |
6076 | case R_NDS32_9_PCREL_RELA: | |
6077 | case R_NDS32_WORD_9_PCREL_RELA: | |
6078 | case R_NDS32_10_UPCREL_RELA: | |
6079 | case R_NDS32_15_PCREL_RELA: | |
6080 | case R_NDS32_17_PCREL_RELA: | |
6081 | case R_NDS32_25_PCREL_RELA: | |
6082 | case R_NDS32_25_ABS_RELA: | |
6083 | case R_NDS32_HI20_RELA: | |
6084 | case R_NDS32_LO12S3_RELA: | |
6085 | case R_NDS32_LO12S2_RELA: | |
6086 | case R_NDS32_LO12S2_DP_RELA: | |
6087 | case R_NDS32_LO12S2_SP_RELA: | |
6088 | case R_NDS32_LO12S1_RELA: | |
6089 | case R_NDS32_LO12S0_RELA: | |
6090 | case R_NDS32_LO12S0_ORI_RELA: | |
6091 | case R_NDS32_SDA16S3_RELA: | |
6092 | case R_NDS32_SDA17S2_RELA: | |
6093 | case R_NDS32_SDA18S1_RELA: | |
6094 | case R_NDS32_SDA19S0_RELA: | |
6095 | case R_NDS32_SDA15S3_RELA: | |
6096 | case R_NDS32_SDA15S2_RELA: | |
6097 | case R_NDS32_SDA12S2_DP_RELA: | |
6098 | case R_NDS32_SDA12S2_SP_RELA: | |
6099 | case R_NDS32_SDA15S1_RELA: | |
6100 | case R_NDS32_SDA15S0_RELA: | |
6101 | case R_NDS32_SDA_FP7U2_RELA: | |
6102 | case R_NDS32_9_PLTREL: | |
6103 | case R_NDS32_25_PLTREL: | |
6104 | case R_NDS32_GOT20: | |
6105 | case R_NDS32_GOT_HI20: | |
6106 | case R_NDS32_GOT_LO12: | |
6107 | case R_NDS32_GOT_LO15: | |
6108 | case R_NDS32_GOT_LO19: | |
6109 | case R_NDS32_GOT15S2_RELA: | |
6110 | case R_NDS32_GOT17S2_RELA: | |
6111 | case R_NDS32_GOTPC20: | |
6112 | case R_NDS32_GOTPC_HI20: | |
6113 | case R_NDS32_GOTPC_LO12: | |
6114 | case R_NDS32_GOTOFF: | |
6115 | case R_NDS32_GOTOFF_HI20: | |
6116 | case R_NDS32_GOTOFF_LO12: | |
6117 | case R_NDS32_GOTOFF_LO15: | |
6118 | case R_NDS32_GOTOFF_LO19: | |
6119 | case R_NDS32_PLTREL_HI20: | |
6120 | case R_NDS32_PLTREL_LO12: | |
6121 | case R_NDS32_PLT_GOTREL_HI20: | |
6122 | case R_NDS32_PLT_GOTREL_LO12: | |
6123 | case R_NDS32_PLT_GOTREL_LO15: | |
6124 | case R_NDS32_PLT_GOTREL_LO19: | |
6125 | case R_NDS32_PLT_GOTREL_LO20: | |
6126 | case R_NDS32_17IFC_PCREL_RELA: | |
6127 | case R_NDS32_10IFCU_PCREL_RELA: | |
1c8f6a4d KLC |
6128 | case R_NDS32_TLS_LE_HI20: |
6129 | case R_NDS32_TLS_LE_LO12: | |
6130 | case R_NDS32_TLS_IE_HI20: | |
6131 | case R_NDS32_TLS_IE_LO12S2: | |
6132 | case R_NDS32_TLS_LE_20: | |
6133 | case R_NDS32_TLS_LE_15S0: | |
6134 | case R_NDS32_TLS_LE_15S1: | |
6135 | case R_NDS32_TLS_LE_15S2: | |
fbaf61ad NC |
6136 | case R_NDS32_TLS_DESC_HI20: |
6137 | case R_NDS32_TLS_DESC_LO12: | |
6138 | case R_NDS32_TLS_IE_LO12: | |
6139 | case R_NDS32_TLS_IEGP_HI20: | |
6140 | case R_NDS32_TLS_IEGP_LO12: | |
6141 | case R_NDS32_TLS_IEGP_LO12S2: | |
35c08157 | 6142 | /* Instruction related relocs must handle endian properly. */ |
1c8f6a4d | 6143 | /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */ |
35c08157 KLC |
6144 | r = nds32_elf_final_link_relocate (howto, input_bfd, |
6145 | input_section, contents, | |
6146 | rel->r_offset, relocation, | |
6147 | rel->r_addend); | |
6148 | break; | |
6149 | ||
6150 | default: | |
6151 | /* All other relocs can use default handler. */ | |
6152 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
6153 | contents, rel->r_offset, | |
6154 | relocation, rel->r_addend); | |
6155 | break; | |
6156 | } | |
6157 | ||
dc1e8a47 | 6158 | check_reloc: |
35c08157 KLC |
6159 | |
6160 | if (r != bfd_reloc_ok) | |
6161 | { | |
6162 | /* FIXME: This should be generic enough to go in a utility. */ | |
6163 | const char *name; | |
6164 | ||
6165 | if (h != NULL) | |
6166 | name = h->root.root.string; | |
6167 | else | |
6168 | { | |
6169 | name = bfd_elf_string_from_elf_section | |
6170 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
6171 | if (name == NULL || *name == '\0') | |
fd361982 | 6172 | name = bfd_section_name (sec); |
35c08157 KLC |
6173 | } |
6174 | ||
6175 | if (errmsg != NULL) | |
6176 | goto common_error; | |
6177 | ||
6178 | switch (r) | |
6179 | { | |
6180 | case bfd_reloc_overflow: | |
1a72702b AM |
6181 | (*info->callbacks->reloc_overflow) |
6182 | (info, (h ? &h->root : NULL), name, howto->name, | |
6183 | (bfd_vma) 0, input_bfd, input_section, offset); | |
35c08157 KLC |
6184 | break; |
6185 | ||
6186 | case bfd_reloc_undefined: | |
1a72702b AM |
6187 | (*info->callbacks->undefined_symbol) |
6188 | (info, name, input_bfd, input_section, offset, TRUE); | |
35c08157 KLC |
6189 | break; |
6190 | ||
6191 | case bfd_reloc_outofrange: | |
6192 | errmsg = _("internal error: out of range error"); | |
6193 | goto common_error; | |
6194 | ||
6195 | case bfd_reloc_notsupported: | |
6196 | errmsg = _("internal error: unsupported relocation error"); | |
6197 | goto common_error; | |
6198 | ||
6199 | case bfd_reloc_dangerous: | |
6200 | errmsg = _("internal error: dangerous error"); | |
6201 | goto common_error; | |
6202 | ||
6203 | default: | |
6204 | errmsg = _("internal error: unknown error"); | |
6205 | /* Fall through. */ | |
6206 | ||
dc1e8a47 | 6207 | common_error: |
1a72702b AM |
6208 | (*info->callbacks->warning) (info, errmsg, name, input_bfd, |
6209 | input_section, offset); | |
35c08157 KLC |
6210 | break; |
6211 | } | |
6212 | } | |
6213 | } | |
6214 | ||
fbaf61ad NC |
6215 | /* Resotre header size to avoid overflow load. */ |
6216 | if (elf_nds32_tdata (input_bfd)->hdr_size != 0) | |
6217 | symtab_hdr->sh_size = elf_nds32_tdata (input_bfd)->hdr_size; | |
6218 | ||
35c08157 KLC |
6219 | return ret; |
6220 | } | |
6221 | ||
6222 | /* Finish up dynamic symbol handling. We set the contents of various | |
6223 | dynamic sections here. */ | |
6224 | ||
6225 | static bfd_boolean | |
6226 | nds32_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, | |
6227 | struct elf_link_hash_entry *h, Elf_Internal_Sym *sym) | |
6228 | { | |
fbaf61ad NC |
6229 | struct elf_link_hash_table *ehtab; |
6230 | struct elf_nds32_link_hash_entry *hent; | |
35c08157 KLC |
6231 | bfd_byte *loc; |
6232 | ||
fbaf61ad NC |
6233 | ehtab = elf_hash_table (info); |
6234 | hent = (struct elf_nds32_link_hash_entry *) h; | |
35c08157 KLC |
6235 | |
6236 | if (h->plt.offset != (bfd_vma) - 1) | |
6237 | { | |
6238 | asection *splt; | |
6239 | asection *sgot; | |
6240 | asection *srela; | |
6241 | ||
6242 | bfd_vma plt_index; | |
6243 | bfd_vma got_offset; | |
6244 | bfd_vma local_plt_offset; | |
6245 | Elf_Internal_Rela rela; | |
6246 | ||
6247 | /* This symbol has an entry in the procedure linkage table. Set | |
6248 | it up. */ | |
6249 | ||
6250 | BFD_ASSERT (h->dynindx != -1); | |
6251 | ||
fbaf61ad NC |
6252 | splt = ehtab->splt; |
6253 | sgot = ehtab->sgotplt; | |
6254 | srela = ehtab->srelplt; | |
35c08157 KLC |
6255 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
6256 | ||
6257 | /* Get the index in the procedure linkage table which | |
6258 | corresponds to this symbol. This is the index of this symbol | |
6259 | in all the symbols for which we are making plt entries. The | |
6260 | first entry in the procedure linkage table is reserved. */ | |
6261 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
6262 | ||
6263 | /* Get the offset into the .got table of the entry that | |
6264 | corresponds to this function. Each .got entry is 4 bytes. | |
6265 | The first three are reserved. */ | |
6266 | got_offset = (plt_index + 3) * 4; | |
6267 | ||
6268 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 6269 | if (!bfd_link_pic (info)) |
35c08157 KLC |
6270 | { |
6271 | unsigned long insn; | |
6272 | ||
6273 | insn = PLT_ENTRY_WORD0 + (((sgot->output_section->vma | |
6274 | + sgot->output_offset + got_offset) >> 12) | |
6275 | & 0xfffff); | |
6276 | bfd_putb32 (insn, splt->contents + h->plt.offset); | |
6277 | ||
6278 | insn = PLT_ENTRY_WORD1 + (((sgot->output_section->vma | |
6279 | + sgot->output_offset + got_offset) & 0x0fff) | |
6280 | >> 2); | |
6281 | bfd_putb32 (insn, splt->contents + h->plt.offset + 4); | |
6282 | ||
6283 | insn = PLT_ENTRY_WORD2; | |
6284 | bfd_putb32 (insn, splt->contents + h->plt.offset + 8); | |
6285 | ||
6286 | insn = PLT_ENTRY_WORD3 + (plt_index & 0x7ffff); | |
6287 | bfd_putb32 (insn, splt->contents + h->plt.offset + 12); | |
6288 | ||
6289 | insn = PLT_ENTRY_WORD4 | |
6290 | + (((unsigned int) ((-(h->plt.offset + 16)) >> 1)) & 0xffffff); | |
6291 | bfd_putb32 (insn, splt->contents + h->plt.offset + 16); | |
6292 | local_plt_offset = 12; | |
6293 | } | |
6294 | else | |
6295 | { | |
6296 | /* sda_base must be set at this time. */ | |
6297 | unsigned long insn; | |
6298 | long offset; | |
6299 | ||
35c08157 KLC |
6300 | offset = sgot->output_section->vma + sgot->output_offset + got_offset |
6301 | - elf_gp (output_bfd); | |
6302 | insn = PLT_PIC_ENTRY_WORD0 + ((offset >> 12) & 0xfffff); | |
6303 | bfd_putb32 (insn, splt->contents + h->plt.offset); | |
6304 | ||
6305 | insn = PLT_PIC_ENTRY_WORD1 + (offset & 0xfff); | |
6306 | bfd_putb32 (insn, splt->contents + h->plt.offset + 4); | |
6307 | ||
6308 | insn = PLT_PIC_ENTRY_WORD2; | |
6309 | bfd_putb32 (insn, splt->contents + h->plt.offset + 8); | |
6310 | ||
6311 | insn = PLT_PIC_ENTRY_WORD3; | |
6312 | bfd_putb32 (insn, splt->contents + h->plt.offset + 12); | |
6313 | ||
6314 | insn = PLT_PIC_ENTRY_WORD4 + (plt_index & 0x7fffff); | |
6315 | bfd_putb32 (insn, splt->contents + h->plt.offset + 16); | |
6316 | ||
6317 | insn = PLT_PIC_ENTRY_WORD5 | |
6318 | + (((unsigned int) ((-(h->plt.offset + 20)) >> 1)) & 0xffffff); | |
6319 | bfd_putb32 (insn, splt->contents + h->plt.offset + 20); | |
6320 | ||
6321 | local_plt_offset = 16; | |
6322 | } | |
6323 | ||
6324 | /* Fill in the entry in the global offset table, | |
6325 | so it will fall through to the next instruction for the first time. */ | |
6326 | bfd_put_32 (output_bfd, | |
6327 | (splt->output_section->vma + splt->output_offset | |
6328 | + h->plt.offset + local_plt_offset), | |
6329 | sgot->contents + got_offset); | |
6330 | ||
6331 | /* Fill in the entry in the .rela.plt section. */ | |
6332 | rela.r_offset = (sgot->output_section->vma | |
6333 | + sgot->output_offset + got_offset); | |
6334 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_JMP_SLOT); | |
6335 | rela.r_addend = 0; | |
6336 | loc = srela->contents; | |
6337 | loc += plt_index * sizeof (Elf32_External_Rela); | |
6338 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
6339 | ||
6340 | if (!h->def_regular) | |
6341 | { | |
6342 | /* Mark the symbol as undefined, rather than as defined in | |
6343 | the .plt section. Leave the value alone. */ | |
6344 | sym->st_shndx = SHN_UNDEF; | |
6345 | if (!h->ref_regular_nonweak) | |
6346 | sym->st_value = 0; | |
6347 | } | |
6348 | } | |
6349 | ||
fbaf61ad NC |
6350 | if (h->got.offset != (bfd_vma) - 1 |
6351 | && hent->tls_type == GOT_NORMAL) | |
35c08157 KLC |
6352 | { |
6353 | asection *sgot; | |
fbaf61ad | 6354 | asection *srelagot; |
35c08157 KLC |
6355 | Elf_Internal_Rela rela; |
6356 | ||
6357 | /* This symbol has an entry in the global offset table. | |
6358 | Set it up. */ | |
6359 | ||
fbaf61ad NC |
6360 | sgot = ehtab->sgot; |
6361 | srelagot = ehtab->srelgot; | |
6362 | BFD_ASSERT (sgot != NULL && srelagot != NULL); | |
35c08157 KLC |
6363 | |
6364 | rela.r_offset = (sgot->output_section->vma | |
6365 | + sgot->output_offset + (h->got.offset & ~1)); | |
6366 | ||
6367 | /* If this is a -Bsymbolic link, and the symbol is defined | |
6368 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
6369 | the symbol was forced to be local because of a version file. | |
6370 | The entry in the global offset table will already have been | |
6371 | initialized in the relocate_section function. */ | |
fbaf61ad NC |
6372 | if ((bfd_link_pic (info) |
6373 | && (info->symbolic || h->dynindx == -1 || h->forced_local) | |
6374 | && h->def_regular) | |
6375 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
6376 | { |
6377 | rela.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
6378 | rela.r_addend = (h->root.u.def.value | |
6379 | + h->root.u.def.section->output_section->vma | |
6380 | + h->root.u.def.section->output_offset); | |
fbaf61ad NC |
6381 | |
6382 | if ((h->got.offset & 1) == 0) | |
6383 | { | |
6384 | bfd_put_32 (output_bfd, rela.r_addend, | |
6385 | sgot->contents + h->got.offset); | |
6386 | } | |
35c08157 KLC |
6387 | } |
6388 | else | |
6389 | { | |
6390 | BFD_ASSERT ((h->got.offset & 1) == 0); | |
6391 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
6392 | sgot->contents + h->got.offset); | |
6393 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_GLOB_DAT); | |
6394 | rela.r_addend = 0; | |
6395 | } | |
6396 | ||
fbaf61ad NC |
6397 | loc = srelagot->contents; |
6398 | loc += srelagot->reloc_count * sizeof (Elf32_External_Rela); | |
35c08157 | 6399 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
fbaf61ad NC |
6400 | ++srelagot->reloc_count; |
6401 | BFD_ASSERT (loc < (srelagot->contents + srelagot->size)); | |
35c08157 KLC |
6402 | } |
6403 | ||
6404 | if (h->needs_copy) | |
6405 | { | |
6406 | asection *s; | |
6407 | Elf_Internal_Rela rela; | |
6408 | ||
6409 | /* This symbols needs a copy reloc. Set it up. */ | |
6410 | ||
6411 | BFD_ASSERT (h->dynindx != -1 | |
6412 | && (h->root.type == bfd_link_hash_defined | |
6413 | || h->root.type == bfd_link_hash_defweak)); | |
6414 | ||
6415 | s = bfd_get_section_by_name (h->root.u.def.section->owner, ".rela.bss"); | |
6416 | BFD_ASSERT (s != NULL); | |
6417 | ||
6418 | rela.r_offset = (h->root.u.def.value | |
6419 | + h->root.u.def.section->output_section->vma | |
6420 | + h->root.u.def.section->output_offset); | |
6421 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_COPY); | |
6422 | rela.r_addend = 0; | |
6423 | loc = s->contents; | |
6424 | loc += s->reloc_count * sizeof (Elf32_External_Rela); | |
6425 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
6426 | ++s->reloc_count; | |
6427 | } | |
6428 | ||
6429 | /* Mark some specially defined symbols as absolute. */ | |
6430 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
6431 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
6432 | sym->st_shndx = SHN_ABS; | |
6433 | ||
6434 | return TRUE; | |
6435 | } | |
6436 | ||
6437 | ||
6438 | /* Finish up the dynamic sections. */ | |
6439 | ||
6440 | static bfd_boolean | |
6441 | nds32_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
6442 | { | |
35c08157 KLC |
6443 | bfd *dynobj; |
6444 | asection *sdyn; | |
fbaf61ad NC |
6445 | asection *sgotplt; |
6446 | struct elf_link_hash_table *ehtab; | |
6447 | struct elf_nds32_link_hash_table *htab; | |
35c08157 | 6448 | |
fbaf61ad | 6449 | ehtab = elf_hash_table (info); |
35c08157 | 6450 | htab = nds32_elf_hash_table (info); |
fbaf61ad NC |
6451 | if (htab == NULL) |
6452 | return FALSE; | |
6453 | ||
6454 | dynobj = elf_hash_table (info)->dynobj; | |
35c08157 | 6455 | |
fbaf61ad NC |
6456 | sgotplt = ehtab->sgotplt; |
6457 | /* A broken linker script might have discarded the dynamic sections. | |
6458 | Catch this here so that we do not seg-fault later on. */ | |
6459 | if (sgotplt != NULL && bfd_is_abs_section (sgotplt->output_section)) | |
6460 | return FALSE; | |
35c08157 KLC |
6461 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
6462 | ||
fbaf61ad | 6463 | if (elf_hash_table (info)->dynamic_sections_created) |
35c08157 KLC |
6464 | { |
6465 | asection *splt; | |
6466 | Elf32_External_Dyn *dyncon, *dynconend; | |
6467 | ||
fbaf61ad | 6468 | BFD_ASSERT (sgotplt != NULL && sdyn != NULL); |
35c08157 KLC |
6469 | |
6470 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
6471 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
6472 | ||
6473 | for (; dyncon < dynconend; dyncon++) | |
6474 | { | |
6475 | Elf_Internal_Dyn dyn; | |
6476 | asection *s; | |
6477 | ||
6478 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
6479 | ||
6480 | switch (dyn.d_tag) | |
6481 | { | |
6482 | default: | |
6483 | break; | |
6484 | ||
6485 | case DT_PLTGOT: | |
fbaf61ad NC |
6486 | /* name = ".got"; */ |
6487 | s = ehtab->sgot->output_section; | |
35c08157 KLC |
6488 | goto get_vma; |
6489 | case DT_JMPREL: | |
fbaf61ad | 6490 | s = ehtab->srelplt->output_section; |
dc1e8a47 | 6491 | get_vma: |
fbaf61ad NC |
6492 | BFD_ASSERT (s != NULL); |
6493 | dyn.d_un.d_ptr = s->vma; | |
35c08157 KLC |
6494 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6495 | break; | |
6496 | ||
6497 | case DT_PLTRELSZ: | |
fbaf61ad NC |
6498 | s = ehtab->srelplt->output_section; |
6499 | BFD_ASSERT (s != NULL); | |
35c08157 KLC |
6500 | dyn.d_un.d_val = s->size; |
6501 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6502 | break; | |
fbaf61ad NC |
6503 | |
6504 | case DT_RELASZ: | |
6505 | /* My reading of the SVR4 ABI indicates that the | |
6506 | procedure linkage table relocs (DT_JMPREL) should be | |
6507 | included in the overall relocs (DT_RELA). This is | |
6508 | what Solaris does. However, UnixWare can not handle | |
6509 | that case. Therefore, we override the DT_RELASZ entry | |
6510 | here to make it not include the JMPREL relocs. Since | |
6511 | the linker script arranges for .rela.plt to follow all | |
6512 | other relocation sections, we don't have to worry | |
6513 | about changing the DT_RELA entry. */ | |
6514 | if (ehtab->srelplt != NULL) | |
6515 | { | |
6516 | s = ehtab->srelplt->output_section; | |
6517 | dyn.d_un.d_val -= s->size; | |
6518 | } | |
6519 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6520 | break; | |
6521 | ||
6522 | case DT_TLSDESC_PLT: | |
6523 | s = htab->root.splt; | |
6524 | dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset | |
6525 | + htab->dt_tlsdesc_plt); | |
6526 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6527 | break; | |
6528 | ||
6529 | case DT_TLSDESC_GOT: | |
6530 | s = htab->root.sgot; | |
6531 | dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset | |
6532 | + htab->dt_tlsdesc_got); | |
6533 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6534 | break; | |
35c08157 KLC |
6535 | } |
6536 | } | |
6537 | ||
6538 | /* Fill in the first entry in the procedure linkage table. */ | |
fbaf61ad | 6539 | splt = ehtab->splt; |
35c08157 KLC |
6540 | if (splt && splt->size > 0) |
6541 | { | |
0e1862bb | 6542 | if (bfd_link_pic (info)) |
35c08157 KLC |
6543 | { |
6544 | unsigned long insn; | |
6545 | long offset; | |
6546 | ||
fbaf61ad NC |
6547 | offset = sgotplt->output_section->vma + sgotplt->output_offset + 4 |
6548 | - elf_gp (output_bfd); | |
35c08157 KLC |
6549 | insn = PLT0_PIC_ENTRY_WORD0 | ((offset >> 12) & 0xfffff); |
6550 | bfd_putb32 (insn, splt->contents); | |
6551 | ||
35c08157 KLC |
6552 | /* here has a typo? */ |
6553 | insn = PLT0_PIC_ENTRY_WORD1 | (offset & 0xfff); | |
6554 | bfd_putb32 (insn, splt->contents + 4); | |
6555 | ||
6556 | insn = PLT0_PIC_ENTRY_WORD2; | |
6557 | bfd_putb32 (insn, splt->contents + 8); | |
6558 | ||
6559 | insn = PLT0_PIC_ENTRY_WORD3; | |
6560 | bfd_putb32 (insn, splt->contents + 12); | |
6561 | ||
6562 | insn = PLT0_PIC_ENTRY_WORD4; | |
6563 | bfd_putb32 (insn, splt->contents + 16); | |
6564 | ||
6565 | insn = PLT0_PIC_ENTRY_WORD5; | |
6566 | bfd_putb32 (insn, splt->contents + 20); | |
6567 | } | |
6568 | else | |
6569 | { | |
6570 | unsigned long insn; | |
6571 | unsigned long addr; | |
6572 | ||
6573 | /* addr = .got + 4 */ | |
fbaf61ad | 6574 | addr = sgotplt->output_section->vma + sgotplt->output_offset + 4; |
35c08157 KLC |
6575 | insn = PLT0_ENTRY_WORD0 | ((addr >> 12) & 0xfffff); |
6576 | bfd_putb32 (insn, splt->contents); | |
6577 | ||
6578 | insn = PLT0_ENTRY_WORD1 | (addr & 0x0fff); | |
6579 | bfd_putb32 (insn, splt->contents + 4); | |
6580 | ||
6581 | insn = PLT0_ENTRY_WORD2; | |
6582 | bfd_putb32 (insn, splt->contents + 8); | |
6583 | ||
6584 | insn = PLT0_ENTRY_WORD3; | |
6585 | bfd_putb32 (insn, splt->contents + 12); | |
6586 | ||
6587 | insn = PLT0_ENTRY_WORD4; | |
6588 | bfd_putb32 (insn, splt->contents + 16); | |
6589 | } | |
6590 | ||
6591 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
6592 | PLT_ENTRY_SIZE; | |
6593 | } | |
fbaf61ad NC |
6594 | |
6595 | if (htab->dt_tlsdesc_plt) | |
6596 | { | |
6597 | /* Calculate addresses. */ | |
6598 | asection *sgot = sgot = ehtab->sgot; | |
6599 | bfd_vma pltgot = sgotplt->output_section->vma | |
6600 | + sgotplt->output_offset; | |
6601 | bfd_vma tlsdesc_got = sgot->output_section->vma + sgot->output_offset | |
6602 | + htab->dt_tlsdesc_got; | |
6603 | ||
6604 | /* Get GP offset. */ | |
6605 | pltgot -= elf_gp (output_bfd) - 4; /* PLTGOT[1] */ | |
6606 | tlsdesc_got -= elf_gp (output_bfd); | |
6607 | ||
6608 | /* Do relocation. */ | |
6609 | dl_tlsdesc_lazy_trampoline[0] += ((1 << 20) - 1) & (tlsdesc_got >> 12); | |
6610 | dl_tlsdesc_lazy_trampoline[1] += 0xfff & tlsdesc_got; | |
6611 | dl_tlsdesc_lazy_trampoline[4] += ((1 << 20) - 1) & (pltgot >> 12); | |
6612 | dl_tlsdesc_lazy_trampoline[5] += 0xfff & pltgot; | |
6613 | ||
6614 | /* Insert .plt. */ | |
6615 | nds32_put_trampoline (splt->contents + htab->dt_tlsdesc_plt, | |
6616 | dl_tlsdesc_lazy_trampoline, | |
6617 | ARRAY_SIZE (dl_tlsdesc_lazy_trampoline)); | |
6618 | } | |
35c08157 KLC |
6619 | } |
6620 | ||
6621 | /* Fill in the first three entries in the global offset table. */ | |
fbaf61ad | 6622 | if (sgotplt && sgotplt->size > 0) |
35c08157 KLC |
6623 | { |
6624 | if (sdyn == NULL) | |
fbaf61ad | 6625 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents); |
35c08157 KLC |
6626 | else |
6627 | bfd_put_32 (output_bfd, | |
6628 | sdyn->output_section->vma + sdyn->output_offset, | |
fbaf61ad NC |
6629 | sgotplt->contents); |
6630 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4); | |
6631 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8); | |
35c08157 | 6632 | |
fbaf61ad | 6633 | elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4; |
35c08157 KLC |
6634 | } |
6635 | ||
6636 | return TRUE; | |
6637 | } | |
6638 | \f | |
6639 | ||
6640 | /* Set the right machine number. */ | |
6641 | ||
6642 | static bfd_boolean | |
6643 | nds32_elf_object_p (bfd *abfd) | |
6644 | { | |
6645 | static unsigned int cur_arch = 0; | |
6646 | ||
6647 | if (E_N1_ARCH != (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH)) | |
6648 | { | |
6649 | /* E_N1_ARCH is a wild card, so it is set only when no others exist. */ | |
6650 | cur_arch = (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH); | |
6651 | } | |
6652 | ||
6653 | switch (cur_arch) | |
6654 | { | |
6655 | default: | |
6656 | case E_N1_ARCH: | |
6657 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1); | |
6658 | break; | |
6659 | case E_N1H_ARCH: | |
6660 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h); | |
6661 | break; | |
6662 | case E_NDS_ARCH_STAR_V2_0: | |
6663 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v2); | |
6664 | break; | |
6665 | case E_NDS_ARCH_STAR_V3_0: | |
6666 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3); | |
6667 | break; | |
6668 | case E_NDS_ARCH_STAR_V3_M: | |
6669 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3m); | |
6670 | break; | |
6671 | } | |
6672 | ||
6673 | return TRUE; | |
6674 | } | |
6675 | ||
6676 | /* Store the machine number in the flags field. */ | |
6677 | ||
cc364be6 AM |
6678 | static bfd_boolean |
6679 | nds32_elf_final_write_processing (bfd *abfd) | |
35c08157 KLC |
6680 | { |
6681 | unsigned long val; | |
6682 | static unsigned int cur_mach = 0; | |
6683 | ||
6684 | if (bfd_mach_n1 != bfd_get_mach (abfd)) | |
6685 | { | |
6686 | cur_mach = bfd_get_mach (abfd); | |
6687 | } | |
6688 | ||
6689 | switch (cur_mach) | |
6690 | { | |
6691 | case bfd_mach_n1: | |
6692 | /* Only happen when object is empty, since the case is abandon. */ | |
6693 | val = E_N1_ARCH; | |
6694 | val |= E_NDS_ABI_AABI; | |
6695 | val |= E_NDS32_ELF_VER_1_4; | |
6696 | break; | |
6697 | case bfd_mach_n1h: | |
6698 | val = E_N1H_ARCH; | |
6699 | break; | |
6700 | case bfd_mach_n1h_v2: | |
6701 | val = E_NDS_ARCH_STAR_V2_0; | |
6702 | break; | |
6703 | case bfd_mach_n1h_v3: | |
6704 | val = E_NDS_ARCH_STAR_V3_0; | |
6705 | break; | |
6706 | case bfd_mach_n1h_v3m: | |
6707 | val = E_NDS_ARCH_STAR_V3_M; | |
6708 | break; | |
6709 | default: | |
6710 | val = 0; | |
6711 | break; | |
6712 | } | |
6713 | ||
6714 | elf_elfheader (abfd)->e_flags &= ~EF_NDS_ARCH; | |
6715 | elf_elfheader (abfd)->e_flags |= val; | |
cc364be6 | 6716 | return _bfd_elf_final_write_processing (abfd); |
35c08157 KLC |
6717 | } |
6718 | ||
6719 | /* Function to keep NDS32 specific file flags. */ | |
6720 | ||
6721 | static bfd_boolean | |
6722 | nds32_elf_set_private_flags (bfd *abfd, flagword flags) | |
6723 | { | |
6724 | BFD_ASSERT (!elf_flags_init (abfd) | |
6725 | || elf_elfheader (abfd)->e_flags == flags); | |
6726 | ||
6727 | elf_elfheader (abfd)->e_flags = flags; | |
6728 | elf_flags_init (abfd) = TRUE; | |
6729 | return TRUE; | |
6730 | } | |
6731 | ||
6732 | static unsigned int | |
6733 | convert_e_flags (unsigned int e_flags, unsigned int arch) | |
6734 | { | |
6735 | if ((e_flags & EF_NDS_ARCH) == E_NDS_ARCH_STAR_V0_9) | |
6736 | { | |
6737 | /* From 0.9 to 1.0. */ | |
6738 | e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V1_0; | |
6739 | ||
6740 | /* Invert E_NDS32_HAS_NO_MAC_INST. */ | |
6741 | e_flags ^= E_NDS32_HAS_NO_MAC_INST; | |
6742 | if (arch == E_NDS_ARCH_STAR_V1_0) | |
6743 | { | |
6744 | /* Done. */ | |
6745 | return e_flags; | |
6746 | } | |
6747 | } | |
6748 | ||
6749 | /* From 1.0 to 2.0. */ | |
6750 | e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V2_0; | |
6751 | ||
6752 | /* Clear E_NDS32_HAS_MFUSR_PC_INST. */ | |
6753 | e_flags &= ~E_NDS32_HAS_MFUSR_PC_INST; | |
6754 | ||
6755 | /* Invert E_NDS32_HAS_NO_MAC_INST. */ | |
6756 | e_flags ^= E_NDS32_HAS_NO_MAC_INST; | |
6757 | return e_flags; | |
6758 | } | |
6759 | ||
6760 | static bfd_boolean | |
6761 | nds32_check_vec_size (bfd *ibfd) | |
6762 | { | |
6763 | static unsigned int nds32_vec_size = 0; | |
6764 | ||
6765 | asection *sec_t = NULL; | |
6766 | bfd_byte *contents = NULL; | |
6767 | ||
6768 | sec_t = bfd_get_section_by_name (ibfd, ".nds32_e_flags"); | |
6769 | ||
6770 | if (sec_t && sec_t->size >= 4) | |
6771 | { | |
6772 | /* Get vec_size in file. */ | |
6773 | unsigned int flag_t; | |
6774 | ||
0c4bd9d9 | 6775 | nds32_get_section_contents (ibfd, sec_t, &contents, TRUE); |
35c08157 KLC |
6776 | flag_t = bfd_get_32 (ibfd, contents); |
6777 | ||
6778 | /* The value could only be 4 or 16. */ | |
6779 | ||
6780 | if (!nds32_vec_size) | |
6781 | /* Set if not set yet. */ | |
6782 | nds32_vec_size = (flag_t & 0x3); | |
6783 | else if (nds32_vec_size != (flag_t & 0x3)) | |
6784 | { | |
4eca0228 | 6785 | _bfd_error_handler |
695344c0 | 6786 | /* xgettext:c-format */ |
871b3ab2 | 6787 | (_("%pB: ISR vector size mismatch" |
4eca0228 AM |
6788 | " with previous modules, previous %u-byte, current %u-byte"), |
6789 | ibfd, | |
6790 | nds32_vec_size == 1 ? 4 : nds32_vec_size == 2 ? 16 : 0xffffffff, | |
6791 | (flag_t & 0x3) == 1 ? 4 : (flag_t & 0x3) == 2 ? 16 : 0xffffffff); | |
35c08157 KLC |
6792 | return FALSE; |
6793 | } | |
6794 | else | |
6795 | /* Only keep the first vec_size section. */ | |
6796 | sec_t->flags |= SEC_EXCLUDE; | |
6797 | } | |
6798 | ||
6799 | return TRUE; | |
6800 | } | |
6801 | ||
6802 | /* Merge backend specific data from an object file to the output | |
6803 | object file when linking. */ | |
6804 | ||
6805 | static bfd_boolean | |
50e03d47 | 6806 | nds32_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
35c08157 | 6807 | { |
50e03d47 | 6808 | bfd *obfd = info->output_bfd; |
35c08157 KLC |
6809 | flagword out_flags; |
6810 | flagword in_flags; | |
6811 | flagword out_16regs; | |
6812 | flagword in_no_mac; | |
6813 | flagword out_no_mac; | |
6814 | flagword in_16regs; | |
6815 | flagword out_version; | |
6816 | flagword in_version; | |
6817 | flagword out_fpu_config; | |
6818 | flagword in_fpu_config; | |
6819 | ||
6820 | /* TODO: Revise to use object-attributes instead. */ | |
6821 | if (!nds32_check_vec_size (ibfd)) | |
6822 | return FALSE; | |
6823 | ||
6824 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6825 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6826 | return TRUE; | |
6827 | ||
6828 | if (bfd_little_endian (ibfd) != bfd_little_endian (obfd)) | |
6829 | { | |
4eca0228 | 6830 | _bfd_error_handler |
38f14ab8 | 6831 | (_("%pB: warning: endian mismatch with previous modules"), ibfd); |
35c08157 KLC |
6832 | |
6833 | bfd_set_error (bfd_error_bad_value); | |
6834 | return FALSE; | |
6835 | } | |
6836 | ||
fbaf61ad NC |
6837 | /* -B option in objcopy cannot work as expected. e_flags = 0 shall be |
6838 | treat as generic one without checking and merging. */ | |
6839 | if (elf_elfheader (ibfd)->e_flags) | |
35c08157 | 6840 | { |
fbaf61ad NC |
6841 | in_version = elf_elfheader (ibfd)->e_flags & EF_NDS32_ELF_VERSION; |
6842 | if (in_version == E_NDS32_ELF_VER_1_2) | |
35c08157 | 6843 | { |
fbaf61ad NC |
6844 | _bfd_error_handler |
6845 | (_("%pB: warning: older version of object file encountered, " | |
6846 | "please recompile with current tool chain"), ibfd); | |
35c08157 | 6847 | } |
35c08157 | 6848 | |
fbaf61ad NC |
6849 | /* We may need to merge V1 and V2 arch object files to V2. */ |
6850 | if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6851 | != (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)) | |
35c08157 | 6852 | { |
fbaf61ad NC |
6853 | /* Need to convert version. */ |
6854 | if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6855 | == E_NDS_ARCH_STAR_RESERVED) | |
6856 | { | |
6857 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
6858 | } | |
6859 | else if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6860 | == E_NDS_ARCH_STAR_V3_M | |
6861 | && (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH) | |
6862 | == E_NDS_ARCH_STAR_V3_0) | |
6863 | { | |
6864 | elf_elfheader (ibfd)->e_flags = | |
6865 | (elf_elfheader (ibfd)->e_flags & (~EF_NDS_ARCH)) | |
6866 | | E_NDS_ARCH_STAR_V3_0; | |
6867 | } | |
6868 | else if ((elf_elfheader (obfd)->e_flags & EF_NDS_ARCH) | |
6869 | == E_NDS_ARCH_STAR_V0_9 | |
6870 | || (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6871 | > (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)) | |
6872 | { | |
6873 | elf_elfheader (obfd)->e_flags = | |
6874 | convert_e_flags (elf_elfheader (obfd)->e_flags, | |
6875 | (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH)); | |
6876 | } | |
6877 | else | |
6878 | { | |
6879 | elf_elfheader (ibfd)->e_flags = | |
6880 | convert_e_flags (elf_elfheader (ibfd)->e_flags, | |
6881 | (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)); | |
6882 | } | |
35c08157 KLC |
6883 | } |
6884 | ||
fbaf61ad NC |
6885 | /* Extract some flags. */ |
6886 | in_flags = elf_elfheader (ibfd)->e_flags | |
6887 | & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION | |
6888 | | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF)); | |
6889 | ||
6890 | /* The following flags need special treatment. */ | |
6891 | in_16regs = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_REDUCED_REGS; | |
6892 | in_no_mac = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_NO_MAC_INST; | |
6893 | in_fpu_config = elf_elfheader (ibfd)->e_flags & E_NDS32_FPU_REG_CONF; | |
6894 | ||
6895 | /* Extract some flags. */ | |
6896 | out_flags = elf_elfheader (obfd)->e_flags | |
6897 | & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION | |
6898 | | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF)); | |
6899 | ||
6900 | /* The following flags need special treatment. */ | |
6901 | out_16regs = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_REDUCED_REGS; | |
6902 | out_no_mac = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_NO_MAC_INST; | |
6903 | out_fpu_config = elf_elfheader (obfd)->e_flags & E_NDS32_FPU_REG_CONF; | |
6904 | out_version = elf_elfheader (obfd)->e_flags & EF_NDS32_ELF_VERSION; | |
6905 | if (!elf_flags_init (obfd)) | |
6906 | { | |
6907 | /* If the input is the default architecture then do not | |
6908 | bother setting the flags for the output architecture, | |
6909 | instead allow future merges to do this. If no future | |
6910 | merges ever set these flags then they will retain their | |
6911 | unitialised values, which surprise surprise, correspond | |
6912 | to the default values. */ | |
6913 | if (bfd_get_arch_info (ibfd)->the_default) | |
6914 | return TRUE; | |
6915 | ||
6916 | elf_flags_init (obfd) = TRUE; | |
6917 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
35c08157 | 6918 | |
fbaf61ad NC |
6919 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) |
6920 | && bfd_get_arch_info (obfd)->the_default) | |
6921 | { | |
6922 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
6923 | bfd_get_mach (ibfd)); | |
6924 | } | |
35c08157 | 6925 | |
fbaf61ad NC |
6926 | return TRUE; |
6927 | } | |
35c08157 | 6928 | |
fbaf61ad NC |
6929 | /* Check flag compatibility. */ |
6930 | if ((in_flags & EF_NDS_ABI) != (out_flags & EF_NDS_ABI)) | |
35c08157 | 6931 | { |
4eca0228 | 6932 | _bfd_error_handler |
fbaf61ad | 6933 | (_("%pB: error: ABI mismatch with previous modules"), ibfd); |
35c08157 KLC |
6934 | bfd_set_error (bfd_error_bad_value); |
6935 | return FALSE; | |
6936 | } | |
35c08157 | 6937 | |
fbaf61ad NC |
6938 | if ((in_flags & EF_NDS_ARCH) != (out_flags & EF_NDS_ARCH)) |
6939 | { | |
6940 | if (((in_flags & EF_NDS_ARCH) != E_N1_ARCH)) | |
6941 | { | |
6942 | _bfd_error_handler | |
6943 | (_("%pB: error: instruction set mismatch with previous modules"), | |
6944 | ibfd); | |
6945 | ||
6946 | bfd_set_error (bfd_error_bad_value); | |
6947 | return FALSE; | |
6948 | } | |
6949 | } | |
6950 | ||
6951 | /* When linking with V1.2 and V1.3 objects together the output is V1.2. | |
6952 | and perf ext1 and DIV are mergerd to perf ext1. */ | |
6953 | if (in_version == E_NDS32_ELF_VER_1_2 || out_version == E_NDS32_ELF_VER_1_2) | |
6954 | { | |
6955 | elf_elfheader (obfd)->e_flags = | |
6956 | (in_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6957 | | (out_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6958 | | (((in_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6959 | ? E_NDS32_HAS_EXT_INST : 0) | |
6960 | | (((out_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6961 | ? E_NDS32_HAS_EXT_INST : 0) | |
6962 | | (in_16regs & out_16regs) | (in_no_mac & out_no_mac) | |
6963 | | ((in_version > out_version) ? out_version : in_version); | |
6964 | } | |
6965 | else | |
6966 | { | |
6967 | if (in_version != out_version) | |
6968 | _bfd_error_handler | |
6969 | /* xgettext:c-format */ | |
6970 | (_("%pB: warning: incompatible elf-versions %s and %s"), | |
6971 | ibfd, nds32_elfver_strtab[out_version], | |
6972 | nds32_elfver_strtab[in_version]); | |
35c08157 | 6973 | |
fbaf61ad NC |
6974 | elf_elfheader (obfd)->e_flags = in_flags | out_flags |
6975 | | (in_16regs & out_16regs) | (in_no_mac & out_no_mac) | |
6976 | | (in_fpu_config > out_fpu_config ? in_fpu_config : out_fpu_config) | |
6977 | | (in_version > out_version ? out_version : in_version); | |
6978 | } | |
35c08157 KLC |
6979 | } |
6980 | ||
6981 | return TRUE; | |
6982 | } | |
6983 | ||
6984 | /* Display the flags field. */ | |
6985 | ||
6986 | static bfd_boolean | |
6987 | nds32_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
6988 | { | |
6989 | FILE *file = (FILE *) ptr; | |
6990 | ||
6991 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
6992 | ||
6993 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
6994 | ||
6995 | fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags); | |
6996 | ||
6997 | switch (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH) | |
6998 | { | |
6999 | default: | |
7000 | case E_N1_ARCH: | |
7001 | fprintf (file, _(": n1 instructions")); | |
7002 | break; | |
7003 | case E_N1H_ARCH: | |
7004 | fprintf (file, _(": n1h instructions")); | |
7005 | break; | |
7006 | } | |
7007 | ||
7008 | fputc ('\n', file); | |
7009 | ||
7010 | return TRUE; | |
7011 | } | |
7012 | ||
7013 | static unsigned int | |
7014 | nds32_elf_action_discarded (asection *sec) | |
7015 | { | |
7016 | ||
7017 | if (strncmp | |
7018 | (".gcc_except_table", sec->name, sizeof (".gcc_except_table") - 1) == 0) | |
7019 | return 0; | |
7020 | ||
7021 | return _bfd_elf_default_action_discarded (sec); | |
7022 | } | |
7023 | ||
7024 | static asection * | |
7025 | nds32_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info, | |
7026 | Elf_Internal_Rela *rel, struct elf_link_hash_entry *h, | |
7027 | Elf_Internal_Sym *sym) | |
7028 | { | |
7029 | if (h != NULL) | |
7030 | switch (ELF32_R_TYPE (rel->r_info)) | |
7031 | { | |
7032 | case R_NDS32_GNU_VTINHERIT: | |
7033 | case R_NDS32_GNU_VTENTRY: | |
7034 | case R_NDS32_RELA_GNU_VTINHERIT: | |
7035 | case R_NDS32_RELA_GNU_VTENTRY: | |
7036 | return NULL; | |
7037 | } | |
7038 | ||
7039 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
7040 | } | |
7041 | ||
fbaf61ad NC |
7042 | static enum elf_nds32_tls_type |
7043 | get_tls_type (enum elf_nds32_reloc_type r_type, | |
7044 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
7045 | { | |
7046 | enum elf_nds32_tls_type tls_type; | |
7047 | ||
7048 | switch (r_type) | |
7049 | { | |
7050 | case R_NDS32_TLS_LE_HI20: | |
7051 | case R_NDS32_TLS_LE_LO12: | |
7052 | tls_type = GOT_TLS_LE; | |
7053 | break; | |
7054 | case R_NDS32_TLS_IE_HI20: | |
7055 | case R_NDS32_TLS_IE_LO12S2: | |
7056 | case R_NDS32_TLS_IE_LO12: | |
7057 | tls_type = GOT_TLS_IE; | |
7058 | break; | |
7059 | case R_NDS32_TLS_IEGP_HI20: | |
7060 | case R_NDS32_TLS_IEGP_LO12: | |
7061 | case R_NDS32_TLS_IEGP_LO12S2: | |
7062 | tls_type = GOT_TLS_IEGP; | |
7063 | break; | |
7064 | case R_NDS32_TLS_DESC_HI20: | |
7065 | case R_NDS32_TLS_DESC_LO12: | |
7066 | case R_NDS32_TLS_DESC_ADD: | |
7067 | case R_NDS32_TLS_DESC_FUNC: | |
7068 | case R_NDS32_TLS_DESC_CALL: | |
7069 | tls_type = GOT_TLS_DESC; | |
7070 | break; | |
7071 | default: | |
7072 | tls_type = GOT_NORMAL; | |
7073 | break; | |
7074 | } | |
7075 | ||
7076 | return tls_type; | |
7077 | } | |
7078 | ||
7079 | /* Ensure that we have allocated bookkeeping structures for ABFD's local | |
7080 | symbols. */ | |
7081 | ||
7082 | static bfd_boolean | |
7083 | elf32_nds32_allocate_local_sym_info (bfd *abfd) | |
7084 | { | |
7085 | if (elf_local_got_refcounts (abfd) == NULL) | |
7086 | { | |
7087 | bfd_size_type num_syms; | |
7088 | bfd_size_type size; | |
7089 | char *data; | |
7090 | ||
7091 | num_syms = elf_tdata (abfd)->symtab_hdr.sh_info; | |
7092 | /* This space is for got_refcounts, got_tls_type, tlsdesc_gotent, and | |
7093 | gp_offset. The details can refer to struct elf_nds32_obj_tdata. */ | |
7094 | size = num_syms * (sizeof (bfd_signed_vma) + sizeof (char) | |
7095 | + sizeof (bfd_vma) + sizeof (int) | |
7096 | + sizeof (bfd_boolean) + sizeof (bfd_vma)); | |
7097 | data = bfd_zalloc (abfd, size); | |
7098 | if (data == NULL) | |
7099 | return FALSE; | |
7100 | ||
7101 | elf_local_got_refcounts (abfd) = (bfd_signed_vma *) data; | |
7102 | data += num_syms * sizeof (bfd_signed_vma); | |
7103 | ||
7104 | elf32_nds32_local_got_tls_type (abfd) = (char *) data; | |
7105 | data += num_syms * sizeof (char); | |
7106 | ||
7107 | elf32_nds32_local_tlsdesc_gotent (abfd) = (bfd_vma *) data; | |
7108 | data += num_syms * sizeof (bfd_vma); | |
7109 | ||
7110 | elf32_nds32_local_gp_offset (abfd) = (int *) data; | |
7111 | data += num_syms * sizeof (int); | |
7112 | } | |
7113 | ||
7114 | return TRUE; | |
7115 | } | |
7116 | ||
35c08157 KLC |
7117 | /* Look through the relocs for a section during the first phase. |
7118 | Since we don't do .gots or .plts, we just need to consider the | |
7119 | virtual table relocs for gc. */ | |
7120 | ||
7121 | static bfd_boolean | |
7122 | nds32_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
7123 | asection *sec, const Elf_Internal_Rela *relocs) | |
7124 | { | |
7125 | Elf_Internal_Shdr *symtab_hdr; | |
7126 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
7127 | const Elf_Internal_Rela *rel; | |
7128 | const Elf_Internal_Rela *rel_end; | |
fbaf61ad | 7129 | struct elf_link_hash_table *ehtab; |
35c08157 KLC |
7130 | struct elf_nds32_link_hash_table *htab; |
7131 | bfd *dynobj; | |
7132 | asection *sreloc = NULL; | |
7133 | ||
fbaf61ad | 7134 | /* No need for relocation if relocatable already. */ |
0e1862bb | 7135 | if (bfd_link_relocatable (info)) |
fbaf61ad NC |
7136 | { |
7137 | elf32_nds32_check_relax_group (abfd, sec); | |
7138 | return TRUE; | |
7139 | } | |
35c08157 | 7140 | |
65281396 AM |
7141 | /* Don't do anything special with non-loaded, non-alloced sections. |
7142 | In particular, any relocs in such sections should not affect GOT | |
7143 | and PLT reference counting (ie. we don't allow them to create GOT | |
7144 | or PLT entries), there's no possibility or desire to optimize TLS | |
7145 | relocs, and there's not much point in propagating relocs to shared | |
7146 | libs that the dynamic linker won't relocate. */ | |
7147 | if ((sec->flags & SEC_ALLOC) == 0) | |
7148 | return TRUE; | |
7149 | ||
35c08157 KLC |
7150 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
7151 | sym_hashes = elf_sym_hashes (abfd); | |
7152 | sym_hashes_end = | |
7153 | sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
7154 | if (!elf_bad_symtab (abfd)) | |
7155 | sym_hashes_end -= symtab_hdr->sh_info; | |
7156 | ||
fbaf61ad | 7157 | ehtab = elf_hash_table (info); |
35c08157 KLC |
7158 | htab = nds32_elf_hash_table (info); |
7159 | dynobj = htab->root.dynobj; | |
7160 | ||
7161 | rel_end = relocs + sec->reloc_count; | |
7162 | for (rel = relocs; rel < rel_end; rel++) | |
7163 | { | |
7164 | enum elf_nds32_reloc_type r_type; | |
7165 | struct elf_link_hash_entry *h; | |
7166 | unsigned long r_symndx; | |
fbaf61ad | 7167 | enum elf_nds32_tls_type tls_type, old_tls_type; |
35c08157 KLC |
7168 | |
7169 | r_symndx = ELF32_R_SYM (rel->r_info); | |
7170 | r_type = ELF32_R_TYPE (rel->r_info); | |
7171 | if (r_symndx < symtab_hdr->sh_info) | |
7172 | h = NULL; | |
7173 | else | |
7174 | { | |
7175 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
7176 | while (h->root.type == bfd_link_hash_indirect | |
7177 | || h->root.type == bfd_link_hash_warning) | |
7178 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7179 | } | |
7180 | ||
fbaf61ad NC |
7181 | /* Create .got section if necessary. |
7182 | Some relocs require a global offset table. We create | |
7183 | got section here, since these relocation need a got section | |
7184 | and if it is not created yet. */ | |
7185 | if (ehtab->sgot == NULL) | |
35c08157 KLC |
7186 | { |
7187 | switch (r_type) | |
7188 | { | |
7189 | case R_NDS32_GOT_HI20: | |
7190 | case R_NDS32_GOT_LO12: | |
7191 | case R_NDS32_GOT_LO15: | |
7192 | case R_NDS32_GOT_LO19: | |
7193 | case R_NDS32_GOT17S2_RELA: | |
7194 | case R_NDS32_GOT15S2_RELA: | |
7195 | case R_NDS32_GOTOFF: | |
7196 | case R_NDS32_GOTOFF_HI20: | |
7197 | case R_NDS32_GOTOFF_LO12: | |
7198 | case R_NDS32_GOTOFF_LO15: | |
7199 | case R_NDS32_GOTOFF_LO19: | |
7200 | case R_NDS32_GOTPC20: | |
7201 | case R_NDS32_GOTPC_HI20: | |
7202 | case R_NDS32_GOTPC_LO12: | |
7203 | case R_NDS32_GOT20: | |
1c8f6a4d | 7204 | case R_NDS32_TLS_IE_HI20: |
fbaf61ad | 7205 | case R_NDS32_TLS_IE_LO12: |
1c8f6a4d | 7206 | case R_NDS32_TLS_IE_LO12S2: |
fbaf61ad NC |
7207 | case R_NDS32_TLS_IEGP_HI20: |
7208 | case R_NDS32_TLS_IEGP_LO12: | |
7209 | case R_NDS32_TLS_IEGP_LO12S2: | |
7210 | case R_NDS32_TLS_DESC_HI20: | |
7211 | case R_NDS32_TLS_DESC_LO12: | |
35c08157 KLC |
7212 | if (dynobj == NULL) |
7213 | htab->root.dynobj = dynobj = abfd; | |
fbaf61ad | 7214 | if (!create_got_section (dynobj, info)) |
35c08157 KLC |
7215 | return FALSE; |
7216 | break; | |
7217 | ||
7218 | default: | |
7219 | break; | |
7220 | } | |
7221 | } | |
7222 | ||
fbaf61ad | 7223 | /* Check relocation type. */ |
35c08157 KLC |
7224 | switch ((int) r_type) |
7225 | { | |
7226 | case R_NDS32_GOT_HI20: | |
7227 | case R_NDS32_GOT_LO12: | |
7228 | case R_NDS32_GOT_LO15: | |
7229 | case R_NDS32_GOT_LO19: | |
7230 | case R_NDS32_GOT20: | |
fbaf61ad NC |
7231 | case R_NDS32_TLS_LE_HI20: |
7232 | case R_NDS32_TLS_LE_LO12: | |
1c8f6a4d | 7233 | case R_NDS32_TLS_IE_HI20: |
fbaf61ad | 7234 | case R_NDS32_TLS_IE_LO12: |
1c8f6a4d | 7235 | case R_NDS32_TLS_IE_LO12S2: |
fbaf61ad NC |
7236 | case R_NDS32_TLS_IEGP_HI20: |
7237 | case R_NDS32_TLS_IEGP_LO12: | |
7238 | case R_NDS32_TLS_IEGP_LO12S2: | |
7239 | case R_NDS32_TLS_DESC_HI20: | |
7240 | case R_NDS32_TLS_DESC_LO12: | |
7241 | tls_type = get_tls_type (r_type, h); | |
7242 | if (h) | |
1c8f6a4d | 7243 | { |
fbaf61ad NC |
7244 | if (tls_type != GOT_TLS_LE) |
7245 | h->got.refcount += 1; | |
1c8f6a4d | 7246 | old_tls_type = elf32_nds32_hash_entry (h)->tls_type; |
1c8f6a4d | 7247 | } |
35c08157 KLC |
7248 | else |
7249 | { | |
fbaf61ad NC |
7250 | /* This is a global offset table entry for a local symbol. */ |
7251 | if (!elf32_nds32_allocate_local_sym_info (abfd)) | |
7252 | return FALSE; | |
35c08157 | 7253 | |
fbaf61ad NC |
7254 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
7255 | if (tls_type != GOT_TLS_LE) | |
7256 | elf_local_got_refcounts (abfd)[r_symndx] += 1; | |
1c8f6a4d | 7257 | old_tls_type = elf32_nds32_local_got_tls_type (abfd)[r_symndx]; |
35c08157 | 7258 | } |
35c08157 | 7259 | |
fbaf61ad | 7260 | /* We would already have issued an error message if there |
1c8f6a4d KLC |
7261 | is a TLS/non-TLS mismatch, based on the symbol |
7262 | type. So just combine any TLS types needed. */ | |
7263 | if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL | |
7264 | && tls_type != GOT_NORMAL) | |
7265 | tls_type |= old_tls_type; | |
7266 | ||
fbaf61ad NC |
7267 | /* DESC to IE/IEGP if link to executable. */ |
7268 | if ((tls_type & (GOT_TLS_DESC | GOT_TLS_IEGP)) | |
7269 | && (bfd_link_executable (info))) | |
7270 | tls_type |= (bfd_link_pie (info) ? GOT_TLS_IEGP : GOT_TLS_IE); | |
7271 | ||
1c8f6a4d KLC |
7272 | if (old_tls_type != tls_type) |
7273 | { | |
7274 | if (h != NULL) | |
7275 | elf32_nds32_hash_entry (h)->tls_type = tls_type; | |
7276 | else | |
7277 | elf32_nds32_local_got_tls_type (abfd)[r_symndx] = tls_type; | |
7278 | } | |
7279 | break; | |
7280 | case R_NDS32_9_PLTREL: | |
35c08157 KLC |
7281 | case R_NDS32_25_PLTREL: |
7282 | case R_NDS32_PLTREL_HI20: | |
7283 | case R_NDS32_PLTREL_LO12: | |
7284 | case R_NDS32_PLT_GOTREL_HI20: | |
7285 | case R_NDS32_PLT_GOTREL_LO12: | |
7286 | case R_NDS32_PLT_GOTREL_LO15: | |
7287 | case R_NDS32_PLT_GOTREL_LO19: | |
7288 | case R_NDS32_PLT_GOTREL_LO20: | |
7289 | ||
7290 | /* This symbol requires a procedure linkage table entry. We | |
7291 | actually build the entry in adjust_dynamic_symbol, | |
7292 | because this might be a case of linking PIC code without | |
7293 | linking in any dynamic objects, in which case we don't | |
7294 | need to generate a procedure linkage table after all. */ | |
7295 | ||
7296 | /* If this is a local symbol, we resolve it directly without | |
7297 | creating a procedure linkage table entry. */ | |
7298 | if (h == NULL) | |
7299 | continue; | |
7300 | ||
fbaf61ad NC |
7301 | if (h->forced_local |
7302 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
7303 | break; |
7304 | ||
1c8f6a4d | 7305 | elf32_nds32_hash_entry (h)->tls_type = GOT_NORMAL; |
35c08157 KLC |
7306 | h->needs_plt = 1; |
7307 | h->plt.refcount += 1; | |
7308 | break; | |
7309 | ||
7310 | case R_NDS32_16_RELA: | |
7311 | case R_NDS32_20_RELA: | |
7312 | case R_NDS32_5_RELA: | |
7313 | case R_NDS32_32_RELA: | |
7314 | case R_NDS32_HI20_RELA: | |
7315 | case R_NDS32_LO12S3_RELA: | |
7316 | case R_NDS32_LO12S2_RELA: | |
7317 | case R_NDS32_LO12S2_DP_RELA: | |
7318 | case R_NDS32_LO12S2_SP_RELA: | |
7319 | case R_NDS32_LO12S1_RELA: | |
7320 | case R_NDS32_LO12S0_RELA: | |
7321 | case R_NDS32_LO12S0_ORI_RELA: | |
7322 | case R_NDS32_SDA16S3_RELA: | |
7323 | case R_NDS32_SDA17S2_RELA: | |
7324 | case R_NDS32_SDA18S1_RELA: | |
7325 | case R_NDS32_SDA19S0_RELA: | |
7326 | case R_NDS32_SDA15S3_RELA: | |
7327 | case R_NDS32_SDA15S2_RELA: | |
7328 | case R_NDS32_SDA12S2_DP_RELA: | |
7329 | case R_NDS32_SDA12S2_SP_RELA: | |
7330 | case R_NDS32_SDA15S1_RELA: | |
7331 | case R_NDS32_SDA15S0_RELA: | |
7332 | case R_NDS32_SDA_FP7U2_RELA: | |
7333 | case R_NDS32_15_PCREL_RELA: | |
7334 | case R_NDS32_17_PCREL_RELA: | |
7335 | case R_NDS32_25_PCREL_RELA: | |
7336 | ||
0e1862bb | 7337 | if (h != NULL && !bfd_link_pic (info)) |
35c08157 KLC |
7338 | { |
7339 | h->non_got_ref = 1; | |
7340 | h->plt.refcount += 1; | |
7341 | } | |
7342 | ||
7343 | /* If we are creating a shared library, and this is a reloc against | |
7344 | a global symbol, or a non PC relative reloc against a local | |
7345 | symbol, then we need to copy the reloc into the shared library. | |
7346 | However, if we are linking with -Bsymbolic, we do not need to | |
7347 | copy a reloc against a global symbol which is defined in an | |
7348 | object we are including in the link (i.e., DEF_REGULAR is set). | |
7349 | At this point we have not seen all the input files, so it is | |
7350 | possible that DEF_REGULAR is not set now but will be set later | |
7351 | (it is never cleared). We account for that possibility below by | |
7352 | storing information in the dyn_relocs field of the hash table | |
7353 | entry. A similar situation occurs when creating shared libraries | |
7354 | and symbol visibility changes render the symbol local. | |
7355 | ||
7356 | If on the other hand, we are creating an executable, we may need | |
7357 | to keep relocations for symbols satisfied by a dynamic library | |
7358 | if we manage to avoid copy relocs for the symbol. */ | |
0e1862bb | 7359 | if ((bfd_link_pic (info) |
35c08157 KLC |
7360 | && (sec->flags & SEC_ALLOC) != 0 |
7361 | && ((r_type != R_NDS32_25_PCREL_RELA | |
7362 | && r_type != R_NDS32_15_PCREL_RELA | |
7363 | && r_type != R_NDS32_17_PCREL_RELA | |
7364 | && !(r_type == R_NDS32_32_RELA | |
7365 | && strcmp (sec->name, ".eh_frame") == 0)) | |
7366 | || (h != NULL | |
7367 | && (!info->symbolic | |
7368 | || h->root.type == bfd_link_hash_defweak | |
7369 | || !h->def_regular)))) | |
0e1862bb | 7370 | || (!bfd_link_pic (info) |
35c08157 KLC |
7371 | && (sec->flags & SEC_ALLOC) != 0 |
7372 | && h != NULL | |
7373 | && (h->root.type == bfd_link_hash_defweak | |
7374 | || !h->def_regular))) | |
7375 | { | |
3bf083ed AM |
7376 | struct elf_dyn_relocs *p; |
7377 | struct elf_dyn_relocs **head; | |
35c08157 KLC |
7378 | |
7379 | if (dynobj == NULL) | |
7380 | htab->root.dynobj = dynobj = abfd; | |
7381 | ||
7382 | /* When creating a shared object, we must copy these | |
7383 | relocs into the output file. We create a reloc | |
7384 | section in dynobj and make room for the reloc. */ | |
7385 | if (sreloc == NULL) | |
7386 | { | |
7387 | const char *name; | |
7388 | ||
7389 | name = bfd_elf_string_from_elf_section | |
7390 | (abfd, elf_elfheader (abfd)->e_shstrndx, | |
7391 | elf_section_data (sec)->rela.hdr->sh_name); | |
7392 | if (name == NULL) | |
7393 | return FALSE; | |
7394 | ||
7395 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
fd361982 | 7396 | && strcmp (bfd_section_name (sec), |
35c08157 KLC |
7397 | name + 5) == 0); |
7398 | ||
7399 | sreloc = bfd_get_section_by_name (dynobj, name); | |
7400 | if (sreloc == NULL) | |
7401 | { | |
7402 | flagword flags; | |
7403 | ||
7404 | sreloc = bfd_make_section (dynobj, name); | |
7405 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
7406 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
7407 | if ((sec->flags & SEC_ALLOC) != 0) | |
7408 | flags |= SEC_ALLOC | SEC_LOAD; | |
7409 | if (sreloc == NULL | |
fd361982 AM |
7410 | || !bfd_set_section_flags (sreloc, flags) |
7411 | || !bfd_set_section_alignment (sreloc, 2)) | |
35c08157 KLC |
7412 | return FALSE; |
7413 | ||
7414 | elf_section_type (sreloc) = SHT_RELA; | |
7415 | } | |
7416 | elf_section_data (sec)->sreloc = sreloc; | |
7417 | } | |
7418 | ||
7419 | /* If this is a global symbol, we count the number of | |
7420 | relocations we need for this symbol. */ | |
7421 | if (h != NULL) | |
7422 | head = &((struct elf_nds32_link_hash_entry *) h)->dyn_relocs; | |
7423 | else | |
7424 | { | |
7425 | asection *s; | |
61034b0b | 7426 | void *vpp; |
35c08157 KLC |
7427 | |
7428 | Elf_Internal_Sym *isym; | |
7429 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, abfd, r_symndx); | |
7430 | if (isym == NULL) | |
7431 | return FALSE; | |
7432 | ||
7433 | /* Track dynamic relocs needed for local syms too. */ | |
7434 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7435 | if (s == NULL) | |
7436 | return FALSE; | |
7437 | ||
61034b0b | 7438 | vpp = &elf_section_data (s)->local_dynrel; |
3bf083ed | 7439 | head = (struct elf_dyn_relocs **) vpp; |
35c08157 KLC |
7440 | } |
7441 | ||
7442 | p = *head; | |
7443 | if (p == NULL || p->sec != sec) | |
7444 | { | |
986f0783 | 7445 | size_t amt = sizeof (*p); |
3bf083ed | 7446 | p = (struct elf_dyn_relocs *) bfd_alloc (dynobj, amt); |
35c08157 KLC |
7447 | if (p == NULL) |
7448 | return FALSE; | |
7449 | p->next = *head; | |
7450 | *head = p; | |
7451 | p->sec = sec; | |
7452 | p->count = 0; | |
7453 | p->pc_count = 0; | |
7454 | } | |
7455 | ||
7456 | p->count += 1; | |
fbaf61ad NC |
7457 | |
7458 | /* Since eh_frame is readonly, R_NDS32_32_RELA | |
7459 | reloc for eh_frame will cause shared library has | |
7460 | TEXTREL entry in the dynamic section. This lead glibc | |
7461 | testsuites to failure (bug-13092) and cause kernel fail | |
7462 | (bug-11819). I think the best solution is to replace | |
7463 | absolute reloc with pc relative reloc in the eh_frame. | |
7464 | To do that, we need to support the following issues: | |
7465 | ||
7466 | === For GCC === | |
7467 | * gcc/config/nds32/nds32.h: Define | |
7468 | ASM_PREFERRED_EH_DATA_FORMAT to encode DW_EH_PE_pcrel | |
7469 | and DW_EH_PE_sdata4 into DWARF exception header when | |
7470 | option have '-fpic'. | |
7471 | ||
7472 | === For binutils === | |
7473 | * bfd/: Define new reloc R_NDS32_32_PCREL_RELA. | |
7474 | * gas/config/tc-nds32.h: Define DIFF_EXPR_OK. This | |
7475 | may break our nds DIFF mechanism, therefore, we | |
7476 | must disable all linker relaxations to ensure | |
7477 | correctness. | |
7478 | * gas/config/tc-nds32.c (nds32_apply_fix): Replace | |
7479 | R_NDS32_32_RELA with R_NDS32_32_PCREL_RELA, and | |
7480 | do the necessary modification. | |
7481 | ||
7482 | Unfortunately, it still have some problems for nds32 | |
7483 | to support pc relative reloc in the eh_frame. So I use | |
7484 | another solution to fix this issue. | |
7485 | ||
7486 | However, I find that ld always emit TEXTREL marker for | |
7487 | R_NDS32_NONE relocs in rel.dyn. These none relocs are | |
7488 | correspond to R_NDS32_32_RELA for .eh_frame section. | |
7489 | It means that we always reserve redundant entries of rel.dyn | |
7490 | for these relocs which actually do nothing in dynamic linker. | |
7491 | ||
7492 | Therefore, we regard these relocs as pc relative relocs | |
7493 | here and increase the pc_count. */ | |
35c08157 KLC |
7494 | if (ELF32_R_TYPE (rel->r_info) == R_NDS32_25_PCREL_RELA |
7495 | || ELF32_R_TYPE (rel->r_info) == R_NDS32_15_PCREL_RELA | |
fbaf61ad NC |
7496 | || ELF32_R_TYPE (rel->r_info) == R_NDS32_17_PCREL_RELA |
7497 | || (r_type == R_NDS32_32_RELA | |
7498 | && strcmp (sec->name, ".eh_frame") == 0)) | |
35c08157 KLC |
7499 | p->pc_count += 1; |
7500 | } | |
7501 | break; | |
7502 | ||
7503 | /* This relocation describes the C++ object vtable hierarchy. | |
7504 | Reconstruct it for later use during GC. */ | |
7505 | case R_NDS32_RELA_GNU_VTINHERIT: | |
7506 | case R_NDS32_GNU_VTINHERIT: | |
7507 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
7508 | return FALSE; | |
7509 | break; | |
7510 | ||
7511 | /* This relocation describes which C++ vtable entries are actually | |
7512 | used. Record for later use during GC. */ | |
7513 | case R_NDS32_GNU_VTENTRY: | |
7514 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) | |
7515 | return FALSE; | |
7516 | break; | |
7517 | case R_NDS32_RELA_GNU_VTENTRY: | |
7518 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
7519 | return FALSE; | |
7520 | break; | |
7521 | } | |
7522 | } | |
7523 | ||
7524 | return TRUE; | |
7525 | } | |
7526 | ||
7527 | /* Write VAL in uleb128 format to P, returning a pointer to the | |
7528 | following byte. | |
7529 | This code is copied from elf-attr.c. */ | |
7530 | ||
7531 | static bfd_byte * | |
7532 | write_uleb128 (bfd_byte *p, unsigned int val) | |
7533 | { | |
7534 | bfd_byte c; | |
7535 | do | |
7536 | { | |
7537 | c = val & 0x7f; | |
7538 | val >>= 7; | |
7539 | if (val) | |
7540 | c |= 0x80; | |
7541 | *(p++) = c; | |
7542 | } | |
7543 | while (val); | |
7544 | return p; | |
7545 | } | |
7546 | ||
7547 | static bfd_signed_vma | |
7548 | calculate_offset (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
fbaf61ad | 7549 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr) |
35c08157 KLC |
7550 | { |
7551 | bfd_signed_vma foff; | |
7552 | bfd_vma symval, addend; | |
7553 | asection *sym_sec; | |
7554 | ||
7555 | /* Get the value of the symbol referred to by the reloc. */ | |
7556 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
7557 | { | |
7558 | Elf_Internal_Sym *isym; | |
7559 | ||
7560 | /* A local symbol. */ | |
7561 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
7562 | ||
7563 | if (isym->st_shndx == SHN_UNDEF) | |
7564 | sym_sec = bfd_und_section_ptr; | |
7565 | else if (isym->st_shndx == SHN_ABS) | |
7566 | sym_sec = bfd_abs_section_ptr; | |
7567 | else if (isym->st_shndx == SHN_COMMON) | |
7568 | sym_sec = bfd_com_section_ptr; | |
7569 | else | |
7570 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7571 | symval = isym->st_value + sym_sec->output_section->vma | |
7572 | + sym_sec->output_offset; | |
7573 | } | |
7574 | else | |
7575 | { | |
7576 | unsigned long indx; | |
7577 | struct elf_link_hash_entry *h; | |
35c08157 KLC |
7578 | |
7579 | /* An external symbol. */ | |
7580 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
7581 | h = elf_sym_hashes (abfd)[indx]; | |
7582 | BFD_ASSERT (h != NULL); | |
7583 | ||
7584 | if (h->root.type != bfd_link_hash_defined | |
7585 | && h->root.type != bfd_link_hash_defweak) | |
7586 | /* This appears to be a reference to an undefined | |
7587 | symbol. Just ignore it--it will be caught by the | |
7588 | regular reloc processing. */ | |
7589 | return 0; | |
35c08157 KLC |
7590 | |
7591 | if (h->root.u.def.section->flags & SEC_MERGE) | |
7592 | { | |
7593 | sym_sec = h->root.u.def.section; | |
7594 | symval = _bfd_merged_section_offset (abfd, &sym_sec, | |
7595 | elf_section_data (sym_sec)->sec_info, | |
7596 | h->root.u.def.value); | |
7597 | symval = symval + sym_sec->output_section->vma | |
7598 | + sym_sec->output_offset; | |
7599 | } | |
7600 | else | |
7601 | symval = (h->root.u.def.value | |
7602 | + h->root.u.def.section->output_section->vma | |
7603 | + h->root.u.def.section->output_offset); | |
7604 | } | |
7605 | ||
7606 | addend = irel->r_addend; | |
7607 | ||
7608 | foff = (symval + addend | |
7609 | - (irel->r_offset + sec->output_section->vma + sec->output_offset)); | |
7610 | return foff; | |
7611 | } | |
35c08157 | 7612 | \f |
fbaf61ad | 7613 | |
35c08157 KLC |
7614 | /* Convert a 32-bit instruction to 16-bit one. |
7615 | INSN is the input 32-bit instruction, INSN16 is the output 16-bit | |
7616 | instruction. If INSN_TYPE is not NULL, it the CGEN instruction | |
7617 | type of INSN16. Return 1 if successful. */ | |
7618 | ||
7619 | static int | |
7620 | nds32_convert_32_to_16_alu1 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7621 | int *pinsn_type) | |
7622 | { | |
7623 | uint16_t insn16 = 0; | |
6cae483a | 7624 | int insn_type = 0; |
35c08157 KLC |
7625 | unsigned long mach = bfd_get_mach (abfd); |
7626 | ||
7627 | if (N32_SH5 (insn) != 0) | |
7628 | return 0; | |
7629 | ||
7630 | switch (N32_SUB5 (insn)) | |
7631 | { | |
7632 | case N32_ALU1_ADD_SLLI: | |
7633 | case N32_ALU1_ADD_SRLI: | |
7634 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn)) | |
7635 | { | |
7636 | insn16 = N16_TYPE333 (ADD333, N32_RT5 (insn), N32_RA5 (insn), | |
7637 | N32_RB5 (insn)); | |
7638 | insn_type = NDS32_INSN_ADD333; | |
7639 | } | |
7640 | else if (N32_IS_RT4 (insn)) | |
7641 | { | |
7642 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7643 | insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RB5 (insn)); | |
7644 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7645 | insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RA5 (insn)); | |
7646 | insn_type = NDS32_INSN_ADD45; | |
7647 | } | |
7648 | break; | |
7649 | ||
7650 | case N32_ALU1_SUB_SLLI: | |
7651 | case N32_ALU1_SUB_SRLI: | |
7652 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn)) | |
7653 | { | |
7654 | insn16 = N16_TYPE333 (SUB333, N32_RT5 (insn), N32_RA5 (insn), | |
7655 | N32_RB5 (insn)); | |
7656 | insn_type = NDS32_INSN_SUB333; | |
7657 | } | |
7658 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7659 | { | |
7660 | insn16 = N16_TYPE45 (SUB45, N32_RT54 (insn), N32_RB5 (insn)); | |
7661 | insn_type = NDS32_INSN_SUB45; | |
7662 | } | |
7663 | break; | |
7664 | ||
7665 | case N32_ALU1_AND_SLLI: | |
7666 | case N32_ALU1_AND_SRLI: | |
7667 | /* and $rt, $rt, $rb -> and33 for v3, v3m. */ | |
7668 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7669 | && N32_IS_RB3 (insn)) | |
7670 | { | |
7671 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7672 | insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RB5 (insn)); | |
7673 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7674 | insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RA5 (insn)); | |
7675 | if (insn16) | |
7676 | insn_type = NDS32_INSN_AND33; | |
7677 | } | |
7678 | break; | |
7679 | ||
7680 | case N32_ALU1_XOR_SLLI: | |
7681 | case N32_ALU1_XOR_SRLI: | |
7682 | /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */ | |
7683 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7684 | && N32_IS_RB3 (insn)) | |
7685 | { | |
7686 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7687 | insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RB5 (insn)); | |
7688 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7689 | insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RA5 (insn)); | |
7690 | if (insn16) | |
7691 | insn_type = NDS32_INSN_XOR33; | |
7692 | } | |
7693 | break; | |
7694 | ||
7695 | case N32_ALU1_OR_SLLI: | |
7696 | case N32_ALU1_OR_SRLI: | |
7697 | /* or $rt, $rt, $rb -> or33 for v3, v3m. */ | |
7698 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7699 | && N32_IS_RB3 (insn)) | |
7700 | { | |
7701 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7702 | insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RB5 (insn)); | |
7703 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7704 | insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RA5 (insn)); | |
7705 | if (insn16) | |
7706 | insn_type = NDS32_INSN_OR33; | |
7707 | } | |
7708 | break; | |
7709 | case N32_ALU1_NOR: | |
7710 | /* nor $rt, $ra, $ra -> not33 for v3, v3m. */ | |
7711 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RB3 (insn) | |
7712 | && N32_RA5 (insn) == N32_RB5 (insn)) | |
7713 | { | |
7714 | insn16 = N16_MISC33 (NOT33, N32_RT5 (insn), N32_RA5 (insn)); | |
7715 | insn_type = NDS32_INSN_NOT33; | |
7716 | } | |
7717 | break; | |
7718 | case N32_ALU1_SRAI: | |
7719 | if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7720 | { | |
7721 | insn16 = N16_TYPE45 (SRAI45, N32_RT54 (insn), N32_UB5 (insn)); | |
7722 | insn_type = NDS32_INSN_SRAI45; | |
7723 | } | |
7724 | break; | |
7725 | ||
7726 | case N32_ALU1_SRLI: | |
7727 | if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7728 | { | |
7729 | insn16 = N16_TYPE45 (SRLI45, N32_RT54 (insn), N32_UB5 (insn)); | |
7730 | insn_type = NDS32_INSN_SRLI45; | |
7731 | } | |
7732 | break; | |
7733 | ||
7734 | case N32_ALU1_SLLI: | |
7735 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_UB5 (insn) < 8) | |
7736 | { | |
7737 | insn16 = N16_TYPE333 (SLLI333, N32_RT5 (insn), N32_RA5 (insn), | |
7738 | N32_UB5 (insn)); | |
7739 | insn_type = NDS32_INSN_SLLI333; | |
7740 | } | |
7741 | break; | |
7742 | ||
7743 | case N32_ALU1_ZEH: | |
7744 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7745 | { | |
7746 | insn16 = N16_BFMI333 (ZEH33, N32_RT5 (insn), N32_RA5 (insn)); | |
7747 | insn_type = NDS32_INSN_ZEH33; | |
7748 | } | |
7749 | break; | |
7750 | ||
7751 | case N32_ALU1_SEB: | |
7752 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7753 | { | |
7754 | insn16 = N16_BFMI333 (SEB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7755 | insn_type = NDS32_INSN_SEB33; | |
7756 | } | |
7757 | break; | |
7758 | ||
7759 | case N32_ALU1_SEH: | |
7760 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7761 | { | |
7762 | insn16 = N16_BFMI333 (SEH33, N32_RT5 (insn), N32_RA5 (insn)); | |
7763 | insn_type = NDS32_INSN_SEH33; | |
7764 | } | |
7765 | break; | |
7766 | ||
7767 | case N32_ALU1_SLT: | |
7768 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)) | |
7769 | { | |
7770 | /* Implicit r15. */ | |
7771 | insn16 = N16_TYPE45 (SLT45, N32_RA54 (insn), N32_RB5 (insn)); | |
7772 | insn_type = NDS32_INSN_SLT45; | |
7773 | } | |
7774 | break; | |
7775 | ||
7776 | case N32_ALU1_SLTS: | |
7777 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)) | |
7778 | { | |
7779 | /* Implicit r15. */ | |
7780 | insn16 = N16_TYPE45 (SLTS45, N32_RA54 (insn), N32_RB5 (insn)); | |
7781 | insn_type = NDS32_INSN_SLTS45; | |
7782 | } | |
7783 | break; | |
7784 | } | |
7785 | ||
7786 | if ((insn16 & 0x8000) == 0) | |
7787 | return 0; | |
7788 | ||
7789 | if (pinsn16) | |
7790 | *pinsn16 = insn16; | |
7791 | if (pinsn_type) | |
7792 | *pinsn_type = insn_type; | |
7793 | return 1; | |
7794 | } | |
7795 | ||
7796 | static int | |
7797 | nds32_convert_32_to_16_alu2 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7798 | int *pinsn_type) | |
7799 | { | |
7800 | uint16_t insn16 = 0; | |
7801 | int insn_type; | |
7802 | unsigned long mach = bfd_get_mach (abfd); | |
7803 | ||
7804 | /* TODO: bset, bclr, btgl, btst. */ | |
7805 | if (__GF (insn, 6, 4) != 0) | |
7806 | return 0; | |
7807 | ||
7808 | switch (N32_IMMU (insn, 6)) | |
7809 | { | |
7810 | case N32_ALU2_MUL: | |
7811 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7812 | && N32_IS_RB3 (insn)) | |
7813 | { | |
7814 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7815 | insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RB5 (insn)); | |
7816 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7817 | insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RA5 (insn)); | |
7818 | if (insn16) | |
7819 | insn_type = NDS32_INSN_MUL33; | |
7820 | } | |
7821 | } | |
7822 | ||
7823 | if ((insn16 & 0x8000) == 0) | |
7824 | return 0; | |
7825 | ||
7826 | if (pinsn16) | |
7827 | *pinsn16 = insn16; | |
7828 | if (pinsn_type) | |
7829 | *pinsn_type = insn_type; | |
7830 | return 1; | |
7831 | } | |
7832 | ||
7833 | int | |
7834 | nds32_convert_32_to_16 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7835 | int *pinsn_type) | |
7836 | { | |
7837 | int op6; | |
7838 | uint16_t insn16 = 0; | |
1624c9ca | 7839 | int insn_type = 0; |
35c08157 KLC |
7840 | unsigned long mach = bfd_get_mach (abfd); |
7841 | ||
7842 | /* Decode 32-bit instruction. */ | |
7843 | if (insn & 0x80000000) | |
7844 | { | |
7845 | /* Not 32-bit insn. */ | |
7846 | return 0; | |
7847 | } | |
7848 | ||
7849 | op6 = N32_OP6 (insn); | |
7850 | ||
7851 | /* Convert it to 16-bit instruction. */ | |
7852 | switch (op6) | |
7853 | { | |
7854 | case N32_OP6_MOVI: | |
7855 | if (IS_WITHIN_S (N32_IMM20S (insn), 5)) | |
7856 | { | |
7857 | insn16 = N16_TYPE55 (MOVI55, N32_RT5 (insn), N32_IMM20S (insn)); | |
7858 | insn_type = NDS32_INSN_MOVI55; | |
7859 | } | |
7860 | else if (mach >= MACH_V3 && N32_IMM20S (insn) >= 16 | |
7861 | && N32_IMM20S (insn) < 48 && N32_IS_RT4 (insn)) | |
7862 | { | |
7863 | insn16 = N16_TYPE45 (MOVPI45, N32_RT54 (insn), | |
7864 | N32_IMM20S (insn) - 16); | |
7865 | insn_type = NDS32_INSN_MOVPI45; | |
7866 | } | |
7867 | break; | |
7868 | ||
7869 | case N32_OP6_ADDI: | |
7870 | if (N32_IMM15S (insn) == 0) | |
7871 | { | |
7872 | /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp', | |
7873 | because `mov55 $sp, $sp' is ifret16 in V3 ISA. */ | |
7874 | if (mach <= MACH_V2 | |
7875 | || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP) | |
7876 | { | |
7877 | insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn)); | |
7878 | insn_type = NDS32_INSN_MOV55; | |
7879 | } | |
7880 | } | |
7881 | else if (N32_IMM15S (insn) > 0) | |
7882 | { | |
7883 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) < 8) | |
7884 | { | |
7885 | insn16 = N16_TYPE333 (ADDI333, N32_RT5 (insn), N32_RA5 (insn), | |
7886 | N32_IMM15S (insn)); | |
7887 | insn_type = NDS32_INSN_ADDI333; | |
7888 | } | |
7889 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn) | |
7890 | && N32_IMM15S (insn) < 32) | |
7891 | { | |
7892 | insn16 = N16_TYPE45 (ADDI45, N32_RT54 (insn), N32_IMM15S (insn)); | |
7893 | insn_type = NDS32_INSN_ADDI45; | |
7894 | } | |
7895 | else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP | |
7896 | && N32_RT5 (insn) == N32_RA5 (insn) | |
7897 | && N32_IMM15S (insn) < 512) | |
7898 | { | |
7899 | insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn)); | |
7900 | insn_type = NDS32_INSN_ADDI10_SP; | |
7901 | } | |
7902 | else if (mach >= MACH_V3 && N32_IS_RT3 (insn) | |
7903 | && N32_RA5 (insn) == REG_SP && N32_IMM15S (insn) < 256 | |
7904 | && (N32_IMM15S (insn) % 4 == 0)) | |
7905 | { | |
7906 | insn16 = N16_TYPE36 (ADDRI36_SP, N32_RT5 (insn), | |
7907 | N32_IMM15S (insn) >> 2); | |
7908 | insn_type = NDS32_INSN_ADDRI36_SP; | |
7909 | } | |
7910 | } | |
7911 | else | |
7912 | { | |
7913 | /* Less than 0. */ | |
7914 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) > -8) | |
7915 | { | |
7916 | insn16 = N16_TYPE333 (SUBI333, N32_RT5 (insn), N32_RA5 (insn), | |
7917 | 0 - N32_IMM15S (insn)); | |
7918 | insn_type = NDS32_INSN_SUBI333; | |
7919 | } | |
7920 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn) | |
7921 | && N32_IMM15S (insn) > -32) | |
7922 | { | |
1c8f6a4d KLC |
7923 | insn16 = N16_TYPE45 (SUBI45, N32_RT54 (insn), |
7924 | 0 - N32_IMM15S (insn)); | |
35c08157 KLC |
7925 | insn_type = NDS32_INSN_SUBI45; |
7926 | } | |
7927 | else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP | |
7928 | && N32_RT5 (insn) == N32_RA5 (insn) | |
7929 | && N32_IMM15S (insn) >= -512) | |
7930 | { | |
7931 | insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn)); | |
7932 | insn_type = NDS32_INSN_ADDI10_SP; | |
7933 | } | |
7934 | } | |
7935 | break; | |
7936 | ||
7937 | case N32_OP6_ORI: | |
7938 | if (N32_IMM15S (insn) == 0) | |
7939 | { | |
7940 | /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp', | |
7941 | because `mov55 $sp, $sp' is ifret16 in V3 ISA. */ | |
7942 | if (mach <= MACH_V2 | |
7943 | || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP) | |
7944 | { | |
7945 | insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn)); | |
7946 | insn_type = NDS32_INSN_MOV55; | |
7947 | } | |
7948 | } | |
7949 | break; | |
7950 | ||
7951 | case N32_OP6_SUBRI: | |
7952 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) | |
7953 | && N32_IS_RA3 (insn) && N32_IMM15S (insn) == 0) | |
7954 | { | |
7955 | insn16 = N16_MISC33 (NEG33, N32_RT5 (insn), N32_RA5 (insn)); | |
7956 | insn_type = NDS32_INSN_NEG33; | |
7957 | } | |
7958 | break; | |
7959 | ||
7960 | case N32_OP6_ANDI: | |
7961 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7962 | { | |
7963 | if (N32_IMM15U (insn) == 1) | |
7964 | { | |
7965 | insn16 = N16_BFMI333 (XLSB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7966 | insn_type = NDS32_INSN_XLSB33; | |
7967 | } | |
7968 | else if (N32_IMM15U (insn) == 0x7ff) | |
7969 | { | |
7970 | insn16 = N16_BFMI333 (X11B33, N32_RT5 (insn), N32_RA5 (insn)); | |
7971 | insn_type = NDS32_INSN_X11B33; | |
7972 | } | |
7973 | else if (N32_IMM15U (insn) == 0xff) | |
7974 | { | |
7975 | insn16 = N16_BFMI333 (ZEB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7976 | insn_type = NDS32_INSN_ZEB33; | |
7977 | } | |
7978 | else if (mach >= MACH_V3 && N32_RT5 (insn) == N32_RA5 (insn) | |
7979 | && N32_IMM15U (insn) < 256) | |
7980 | { | |
7981 | int imm15u = N32_IMM15U (insn); | |
7982 | ||
7983 | if (__builtin_popcount (imm15u) == 1) | |
7984 | { | |
7985 | /* BMSKI33 */ | |
7986 | int imm3u = __builtin_ctz (imm15u); | |
7987 | ||
7988 | insn16 = N16_BFMI333 (BMSKI33, N32_RT5 (insn), imm3u); | |
7989 | insn_type = NDS32_INSN_BMSKI33; | |
7990 | } | |
7991 | else if (imm15u != 0 && __builtin_popcount (imm15u + 1) == 1) | |
7992 | { | |
7993 | /* FEXTI33 */ | |
7994 | int imm3u = __builtin_ctz (imm15u + 1) - 1; | |
7995 | ||
7996 | insn16 = N16_BFMI333 (FEXTI33, N32_RT5 (insn), imm3u); | |
7997 | insn_type = NDS32_INSN_FEXTI33; | |
7998 | } | |
7999 | } | |
8000 | } | |
8001 | break; | |
8002 | ||
8003 | case N32_OP6_SLTI: | |
8004 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn) | |
8005 | && IS_WITHIN_U (N32_IMM15S (insn), 5)) | |
8006 | { | |
8007 | insn16 = N16_TYPE45 (SLTI45, N32_RA54 (insn), N32_IMM15S (insn)); | |
8008 | insn_type = NDS32_INSN_SLTI45; | |
8009 | } | |
8010 | break; | |
8011 | ||
8012 | case N32_OP6_SLTSI: | |
8013 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn) | |
8014 | && IS_WITHIN_U (N32_IMM15S (insn), 5)) | |
8015 | { | |
8016 | insn16 = N16_TYPE45 (SLTSI45, N32_RA54 (insn), N32_IMM15S (insn)); | |
8017 | insn_type = NDS32_INSN_SLTSI45; | |
8018 | } | |
8019 | break; | |
8020 | ||
8021 | case N32_OP6_LWI: | |
8022 | if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0) | |
8023 | { | |
8024 | insn16 = N16_TYPE45 (LWI450, N32_RT54 (insn), N32_RA5 (insn)); | |
8025 | insn_type = NDS32_INSN_LWI450; | |
8026 | } | |
8027 | else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8028 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8029 | { | |
8030 | insn16 = N16_TYPE333 (LWI333, N32_RT5 (insn), N32_RA5 (insn), | |
8031 | N32_IMM15S (insn)); | |
8032 | insn_type = NDS32_INSN_LWI333; | |
8033 | } | |
8034 | else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP | |
8035 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8036 | { | |
8037 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
8038 | insn_type = NDS32_INSN_LWI37; | |
8039 | } | |
8040 | else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP | |
8041 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8042 | { | |
8043 | insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
8044 | insn_type = NDS32_INSN_LWI37_SP; | |
8045 | } | |
8046 | else if (mach >= MACH_V2 && N32_IS_RT4 (insn) && N32_RA5 (insn) == REG_R8 | |
8047 | && -32 <= N32_IMM15S (insn) && N32_IMM15S (insn) < 0) | |
8048 | { | |
1c8f6a4d KLC |
8049 | insn16 = N16_TYPE45 (LWI45_FE, N32_RT54 (insn), |
8050 | N32_IMM15S (insn) + 32); | |
35c08157 KLC |
8051 | insn_type = NDS32_INSN_LWI45_FE; |
8052 | } | |
8053 | break; | |
8054 | ||
8055 | case N32_OP6_SWI: | |
8056 | if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0) | |
8057 | { | |
8058 | insn16 = N16_TYPE45 (SWI450, N32_RT54 (insn), N32_RA5 (insn)); | |
8059 | insn_type = NDS32_INSN_SWI450; | |
8060 | } | |
8061 | else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8062 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8063 | { | |
1c8f6a4d KLC |
8064 | insn16 = N16_TYPE333 (SWI333, N32_RT5 (insn), N32_RA5 (insn), |
8065 | N32_IMM15S (insn)); | |
35c08157 KLC |
8066 | insn_type = NDS32_INSN_SWI333; |
8067 | } | |
8068 | else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP | |
8069 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8070 | { | |
8071 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
8072 | insn_type = NDS32_INSN_SWI37; | |
8073 | } | |
8074 | else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP | |
8075 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8076 | { | |
8077 | insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
8078 | insn_type = NDS32_INSN_SWI37_SP; | |
8079 | } | |
8080 | break; | |
8081 | ||
8082 | case N32_OP6_LWI_BI: | |
8083 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8084 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8085 | { | |
8086 | insn16 = N16_TYPE333 (LWI333_BI, N32_RT5 (insn), N32_RA5 (insn), | |
8087 | N32_IMM15S (insn)); | |
8088 | insn_type = NDS32_INSN_LWI333_BI; | |
8089 | } | |
8090 | break; | |
8091 | ||
8092 | case N32_OP6_SWI_BI: | |
8093 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8094 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8095 | { | |
8096 | insn16 = N16_TYPE333 (SWI333_BI, N32_RT5 (insn), N32_RA5 (insn), | |
8097 | N32_IMM15S (insn)); | |
8098 | insn_type = NDS32_INSN_SWI333_BI; | |
8099 | } | |
8100 | break; | |
8101 | ||
8102 | case N32_OP6_LHI: | |
8103 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8104 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8105 | { | |
8106 | insn16 = N16_TYPE333 (LHI333, N32_RT5 (insn), N32_RA5 (insn), | |
8107 | N32_IMM15S (insn)); | |
8108 | insn_type = NDS32_INSN_LHI333; | |
8109 | } | |
8110 | break; | |
8111 | ||
8112 | case N32_OP6_SHI: | |
8113 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8114 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8115 | { | |
8116 | insn16 = N16_TYPE333 (SHI333, N32_RT5 (insn), N32_RA5 (insn), | |
8117 | N32_IMM15S (insn)); | |
8118 | insn_type = NDS32_INSN_SHI333; | |
8119 | } | |
8120 | break; | |
8121 | ||
8122 | case N32_OP6_LBI: | |
8123 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8124 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8125 | { | |
8126 | insn16 = N16_TYPE333 (LBI333, N32_RT5 (insn), N32_RA5 (insn), | |
8127 | N32_IMM15S (insn)); | |
8128 | insn_type = NDS32_INSN_LBI333; | |
8129 | } | |
8130 | break; | |
8131 | ||
8132 | case N32_OP6_SBI: | |
8133 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
8134 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
8135 | { | |
8136 | insn16 = N16_TYPE333 (SBI333, N32_RT5 (insn), N32_RA5 (insn), | |
8137 | N32_IMM15S (insn)); | |
8138 | insn_type = NDS32_INSN_SBI333; | |
8139 | } | |
8140 | break; | |
8141 | ||
8142 | case N32_OP6_ALU1: | |
8143 | return nds32_convert_32_to_16_alu1 (abfd, insn, pinsn16, pinsn_type); | |
8144 | ||
8145 | case N32_OP6_ALU2: | |
8146 | return nds32_convert_32_to_16_alu2 (abfd, insn, pinsn16, pinsn_type); | |
8147 | ||
8148 | case N32_OP6_BR1: | |
8149 | if (!IS_WITHIN_S (N32_IMM14S (insn), 8)) | |
8150 | goto done; | |
8151 | ||
4ec521f2 | 8152 | if ((insn & N32_BIT (14)) == 0) |
35c08157 KLC |
8153 | { |
8154 | /* N32_BR1_BEQ */ | |
8155 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5 | |
8156 | && N32_RT5 (insn) != REG_R5) | |
8157 | insn16 = N16_TYPE38 (BEQS38, N32_RT5 (insn), N32_IMM14S (insn)); | |
8158 | else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5 | |
8159 | && N32_RA5 (insn) != REG_R5) | |
8160 | insn16 = N16_TYPE38 (BEQS38, N32_RA5 (insn), N32_IMM14S (insn)); | |
8161 | insn_type = NDS32_INSN_BEQS38; | |
8162 | break; | |
8163 | } | |
8164 | else | |
8165 | { | |
8166 | /* N32_BR1_BNE */ | |
8167 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5 | |
8168 | && N32_RT5 (insn) != REG_R5) | |
8169 | insn16 = N16_TYPE38 (BNES38, N32_RT5 (insn), N32_IMM14S (insn)); | |
8170 | else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5 | |
8171 | && N32_RA5 (insn) != REG_R5) | |
8172 | insn16 = N16_TYPE38 (BNES38, N32_RA5 (insn), N32_IMM14S (insn)); | |
8173 | insn_type = NDS32_INSN_BNES38; | |
8174 | break; | |
8175 | } | |
8176 | break; | |
8177 | ||
8178 | case N32_OP6_BR2: | |
8179 | switch (N32_BR2_SUB (insn)) | |
8180 | { | |
8181 | case N32_BR2_BEQZ: | |
8182 | if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
8183 | { | |
8184 | insn16 = N16_TYPE38 (BEQZ38, N32_RT5 (insn), N32_IMM16S (insn)); | |
8185 | insn_type = NDS32_INSN_BEQZ38; | |
8186 | } | |
1c8f6a4d KLC |
8187 | else if (N32_RT5 (insn) == REG_R15 |
8188 | && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
35c08157 KLC |
8189 | { |
8190 | insn16 = N16_TYPE8 (BEQZS8, N32_IMM16S (insn)); | |
8191 | insn_type = NDS32_INSN_BEQZS8; | |
8192 | } | |
8193 | break; | |
8194 | ||
8195 | case N32_BR2_BNEZ: | |
8196 | if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
8197 | { | |
8198 | insn16 = N16_TYPE38 (BNEZ38, N32_RT5 (insn), N32_IMM16S (insn)); | |
8199 | insn_type = NDS32_INSN_BNEZ38; | |
8200 | } | |
1c8f6a4d KLC |
8201 | else if (N32_RT5 (insn) == REG_R15 |
8202 | && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
35c08157 KLC |
8203 | { |
8204 | insn16 = N16_TYPE8 (BNEZS8, N32_IMM16S (insn)); | |
8205 | insn_type = NDS32_INSN_BNEZS8; | |
8206 | } | |
8207 | break; | |
8208 | ||
fbaf61ad NC |
8209 | case N32_BR2_SOP0: |
8210 | if (__GF (insn, 20, 5) == 0 && IS_WITHIN_U (N32_IMM16S (insn), 9)) | |
35c08157 KLC |
8211 | { |
8212 | insn16 = N16_TYPE9 (IFCALL9, N32_IMM16S (insn)); | |
8213 | insn_type = NDS32_INSN_IFCALL9; | |
8214 | } | |
8215 | break; | |
8216 | } | |
8217 | break; | |
8218 | ||
8219 | case N32_OP6_JI: | |
4ec521f2 | 8220 | if ((insn & N32_BIT (24)) == 0) |
35c08157 KLC |
8221 | { |
8222 | /* N32_JI_J */ | |
8223 | if (IS_WITHIN_S (N32_IMM24S (insn), 8)) | |
8224 | { | |
8225 | insn16 = N16_TYPE8 (J8, N32_IMM24S (insn)); | |
8226 | insn_type = NDS32_INSN_J8; | |
8227 | } | |
8228 | } | |
8229 | break; | |
8230 | ||
8231 | case N32_OP6_JREG: | |
8232 | if (__GF (insn, 8, 2) != 0) | |
8233 | goto done; | |
8234 | ||
8235 | switch (N32_IMMU (insn, 5)) | |
8236 | { | |
8237 | case N32_JREG_JR: | |
8238 | if (N32_JREG_HINT (insn) == 0) | |
8239 | { | |
8240 | /* jr */ | |
8241 | insn16 = N16_TYPE5 (JR5, N32_RB5 (insn)); | |
8242 | insn_type = NDS32_INSN_JR5; | |
8243 | } | |
8244 | else if (N32_JREG_HINT (insn) == 1) | |
8245 | { | |
8246 | /* ret */ | |
8247 | insn16 = N16_TYPE5 (RET5, N32_RB5 (insn)); | |
8248 | insn_type = NDS32_INSN_RET5; | |
8249 | } | |
8250 | else if (N32_JREG_HINT (insn) == 3) | |
8251 | { | |
8252 | /* ifret = mov55 $sp, $sp */ | |
8253 | insn16 = N16_TYPE55 (MOV55, REG_SP, REG_SP); | |
8254 | insn_type = NDS32_INSN_IFRET; | |
8255 | } | |
8256 | break; | |
8257 | ||
8258 | case N32_JREG_JRAL: | |
8259 | /* It's convertible when return rt5 is $lp and address | |
8260 | translation is kept. */ | |
8261 | if (N32_RT5 (insn) == REG_LP && N32_JREG_HINT (insn) == 0) | |
8262 | { | |
8263 | insn16 = N16_TYPE5 (JRAL5, N32_RB5 (insn)); | |
8264 | insn_type = NDS32_INSN_JRAL5; | |
8265 | } | |
8266 | break; | |
8267 | } | |
8268 | break; | |
8269 | ||
8270 | case N32_OP6_MISC: | |
8271 | if (N32_SUB5 (insn) == N32_MISC_BREAK && N32_SWID (insn) < 32) | |
8272 | { | |
8273 | /* For v3, swid above 31 are used for ex9.it. */ | |
8274 | insn16 = N16_TYPE5 (BREAK16, N32_SWID (insn)); | |
8275 | insn_type = NDS32_INSN_BREAK16; | |
8276 | } | |
8277 | break; | |
8278 | ||
8279 | default: | |
8280 | /* This instruction has no 16-bit variant. */ | |
8281 | goto done; | |
8282 | } | |
8283 | ||
dc1e8a47 | 8284 | done: |
35c08157 KLC |
8285 | /* Bit-15 of insn16 should be set for a valid instruction. */ |
8286 | if ((insn16 & 0x8000) == 0) | |
8287 | return 0; | |
8288 | ||
8289 | if (pinsn16) | |
8290 | *pinsn16 = insn16; | |
8291 | if (pinsn_type) | |
8292 | *pinsn_type = insn_type; | |
8293 | return 1; | |
8294 | } | |
8295 | ||
8296 | static int | |
8297 | special_convert_32_to_16 (unsigned long insn, uint16_t *pinsn16, | |
8298 | Elf_Internal_Rela *reloc) | |
8299 | { | |
8300 | uint16_t insn16 = 0; | |
8301 | ||
8302 | if ((reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) == 0 | |
8303 | || (ELF32_R_TYPE (reloc->r_info) != R_NDS32_INSN16)) | |
8304 | return 0; | |
8305 | ||
8306 | if (!N32_IS_RT3 (insn)) | |
8307 | return 0; | |
8308 | ||
8309 | switch (N32_OP6 (insn)) | |
8310 | { | |
8311 | case N32_OP6_LWI: | |
8312 | if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8313 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
8314 | break; | |
8315 | case N32_OP6_SWI: | |
8316 | if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8317 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
8318 | break; | |
8319 | case N32_OP6_HWGP: | |
8320 | if (!IS_WITHIN_U (N32_IMM17S (insn), 7)) | |
8321 | break; | |
8322 | ||
8323 | if (__GF (insn, 17, 3) == 6) | |
8324 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM17S (insn)); | |
8325 | else if (__GF (insn, 17, 3) == 7) | |
8326 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM17S (insn)); | |
8327 | break; | |
8328 | } | |
8329 | ||
8330 | if ((insn16 & 0x8000) == 0) | |
8331 | return 0; | |
8332 | ||
8333 | *pinsn16 = insn16; | |
8334 | return 1; | |
8335 | } | |
8336 | ||
8337 | /* Convert a 16-bit instruction to 32-bit one. | |
8338 | INSN16 it the input and PINSN it the point to output. | |
8339 | Return non-zero on successful. Otherwise 0 is returned. */ | |
8340 | ||
8341 | int | |
8342 | nds32_convert_16_to_32 (bfd *abfd, uint16_t insn16, uint32_t *pinsn) | |
8343 | { | |
8344 | uint32_t insn = 0xffffffff; | |
8345 | unsigned long mach = bfd_get_mach (abfd); | |
8346 | ||
8347 | /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */ | |
8348 | ||
8349 | switch (__GF (insn16, 9, 6)) | |
8350 | { | |
8351 | case 0x4: /* add45 */ | |
1c8f6a4d KLC |
8352 | insn = N32_ALU1 (ADD, N16_RT4 (insn16), N16_RT4 (insn16), |
8353 | N16_RA5 (insn16)); | |
35c08157 KLC |
8354 | goto done; |
8355 | case 0x5: /* sub45 */ | |
1c8f6a4d KLC |
8356 | insn = N32_ALU1 (SUB, N16_RT4 (insn16), N16_RT4 (insn16), |
8357 | N16_RA5 (insn16)); | |
35c08157 KLC |
8358 | goto done; |
8359 | case 0x6: /* addi45 */ | |
1c8f6a4d KLC |
8360 | insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16), |
8361 | N16_IMM5U (insn16)); | |
35c08157 KLC |
8362 | goto done; |
8363 | case 0x7: /* subi45 */ | |
1c8f6a4d KLC |
8364 | insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16), |
8365 | -N16_IMM5U (insn16)); | |
35c08157 KLC |
8366 | goto done; |
8367 | case 0x8: /* srai45 */ | |
1c8f6a4d KLC |
8368 | insn = N32_ALU1 (SRAI, N16_RT4 (insn16), N16_RT4 (insn16), |
8369 | N16_IMM5U (insn16)); | |
35c08157 KLC |
8370 | goto done; |
8371 | case 0x9: /* srli45 */ | |
1c8f6a4d KLC |
8372 | insn = N32_ALU1 (SRLI, N16_RT4 (insn16), N16_RT4 (insn16), |
8373 | N16_IMM5U (insn16)); | |
35c08157 | 8374 | goto done; |
35c08157 | 8375 | case 0xa: /* slli333 */ |
1c8f6a4d KLC |
8376 | insn = N32_ALU1 (SLLI, N16_RT3 (insn16), N16_RA3 (insn16), |
8377 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8378 | goto done; |
8379 | case 0xc: /* add333 */ | |
1c8f6a4d KLC |
8380 | insn = N32_ALU1 (ADD, N16_RT3 (insn16), N16_RA3 (insn16), |
8381 | N16_RB3 (insn16)); | |
35c08157 KLC |
8382 | goto done; |
8383 | case 0xd: /* sub333 */ | |
1c8f6a4d KLC |
8384 | insn = N32_ALU1 (SUB, N16_RT3 (insn16), N16_RA3 (insn16), |
8385 | N16_RB3 (insn16)); | |
35c08157 KLC |
8386 | goto done; |
8387 | case 0xe: /* addi333 */ | |
1c8f6a4d KLC |
8388 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16), |
8389 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8390 | goto done; |
8391 | case 0xf: /* subi333 */ | |
1c8f6a4d KLC |
8392 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16), |
8393 | -N16_IMM3U (insn16)); | |
35c08157 | 8394 | goto done; |
35c08157 | 8395 | case 0x10: /* lwi333 */ |
1c8f6a4d KLC |
8396 | insn = N32_TYPE2 (LWI, N16_RT3 (insn16), N16_RA3 (insn16), |
8397 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8398 | goto done; |
8399 | case 0x12: /* lhi333 */ | |
1c8f6a4d KLC |
8400 | insn = N32_TYPE2 (LHI, N16_RT3 (insn16), N16_RA3 (insn16), |
8401 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8402 | goto done; |
8403 | case 0x13: /* lbi333 */ | |
1c8f6a4d KLC |
8404 | insn = N32_TYPE2 (LBI, N16_RT3 (insn16), N16_RA3 (insn16), |
8405 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8406 | goto done; |
8407 | case 0x11: /* lwi333.bi */ | |
1c8f6a4d KLC |
8408 | insn = N32_TYPE2 (LWI_BI, N16_RT3 (insn16), N16_RA3 (insn16), |
8409 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8410 | goto done; |
8411 | case 0x14: /* swi333 */ | |
1c8f6a4d KLC |
8412 | insn = N32_TYPE2 (SWI, N16_RT3 (insn16), N16_RA3 (insn16), |
8413 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8414 | goto done; |
8415 | case 0x16: /* shi333 */ | |
1c8f6a4d KLC |
8416 | insn = N32_TYPE2 (SHI, N16_RT3 (insn16), N16_RA3 (insn16), |
8417 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8418 | goto done; |
8419 | case 0x17: /* sbi333 */ | |
1c8f6a4d KLC |
8420 | insn = N32_TYPE2 (SBI, N16_RT3 (insn16), N16_RA3 (insn16), |
8421 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8422 | goto done; |
8423 | case 0x15: /* swi333.bi */ | |
1c8f6a4d KLC |
8424 | insn = N32_TYPE2 (SWI_BI, N16_RT3 (insn16), N16_RA3 (insn16), |
8425 | N16_IMM3U (insn16)); | |
35c08157 | 8426 | goto done; |
35c08157 | 8427 | case 0x18: /* addri36.sp */ |
1c8f6a4d KLC |
8428 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), REG_SP, |
8429 | N16_IMM6U (insn16) << 2); | |
35c08157 | 8430 | goto done; |
35c08157 | 8431 | case 0x19: /* lwi45.fe */ |
1c8f6a4d KLC |
8432 | insn = N32_TYPE2 (LWI, N16_RT4 (insn16), REG_R8, |
8433 | (N16_IMM5U (insn16) - 32)); | |
35c08157 KLC |
8434 | goto done; |
8435 | case 0x1a: /* lwi450 */ | |
8436 | insn = N32_TYPE2 (LWI, N16_RT4 (insn16), N16_RA5 (insn16), 0); | |
8437 | goto done; | |
8438 | case 0x1b: /* swi450 */ | |
8439 | insn = N32_TYPE2 (SWI, N16_RT4 (insn16), N16_RA5 (insn16), 0); | |
8440 | goto done; | |
8441 | ||
1c8f6a4d | 8442 | /* These are r15 implied instructions. */ |
35c08157 KLC |
8443 | case 0x30: /* slts45 */ |
8444 | insn = N32_ALU1 (SLTS, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16)); | |
8445 | goto done; | |
8446 | case 0x31: /* slt45 */ | |
8447 | insn = N32_ALU1 (SLT, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16)); | |
8448 | goto done; | |
8449 | case 0x32: /* sltsi45 */ | |
8450 | insn = N32_TYPE2 (SLTSI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16)); | |
8451 | goto done; | |
8452 | case 0x33: /* slti45 */ | |
8453 | insn = N32_TYPE2 (SLTI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16)); | |
8454 | goto done; | |
8455 | case 0x34: /* beqzs8, bnezs8 */ | |
4ec521f2 | 8456 | if (insn16 & N32_BIT (8)) |
35c08157 KLC |
8457 | insn = N32_BR2 (BNEZ, REG_TA, N16_IMM8S (insn16)); |
8458 | else | |
8459 | insn = N32_BR2 (BEQZ, REG_TA, N16_IMM8S (insn16)); | |
8460 | goto done; | |
8461 | ||
8462 | case 0x35: /* break16, ex9.it */ | |
8463 | /* Only consider range of v3 break16. */ | |
8464 | insn = N32_TYPE0 (MISC, (N16_IMM5U (insn16) << 5) | N32_MISC_BREAK); | |
8465 | goto done; | |
8466 | ||
8467 | case 0x3c: /* ifcall9 */ | |
fbaf61ad | 8468 | insn = N32_BR2 (SOP0, 0, N16_IMM9U (insn16)); |
35c08157 KLC |
8469 | goto done; |
8470 | case 0x3d: /* movpi45 */ | |
8471 | insn = N32_TYPE1 (MOVI, N16_RT4 (insn16), N16_IMM5U (insn16) + 16); | |
8472 | goto done; | |
8473 | ||
8474 | case 0x3f: /* MISC33 */ | |
1c8f6a4d | 8475 | switch (insn16 & 0x7) |
35c08157 KLC |
8476 | { |
8477 | case 2: /* neg33 */ | |
8478 | insn = N32_TYPE2 (SUBRI, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8479 | break; | |
8480 | case 3: /* not33 */ | |
1c8f6a4d KLC |
8481 | insn = N32_ALU1 (NOR, N16_RT3 (insn16), N16_RA3 (insn16), |
8482 | N16_RA3 (insn16)); | |
35c08157 KLC |
8483 | break; |
8484 | case 4: /* mul33 */ | |
1c8f6a4d KLC |
8485 | insn = N32_ALU2 (MUL, N16_RT3 (insn16), N16_RT3 (insn16), |
8486 | N16_RA3 (insn16)); | |
35c08157 KLC |
8487 | break; |
8488 | case 5: /* xor33 */ | |
1c8f6a4d KLC |
8489 | insn = N32_ALU1 (XOR, N16_RT3 (insn16), N16_RT3 (insn16), |
8490 | N16_RA3 (insn16)); | |
35c08157 KLC |
8491 | break; |
8492 | case 6: /* and33 */ | |
1c8f6a4d KLC |
8493 | insn = N32_ALU1 (AND, N16_RT3 (insn16), N16_RT3 (insn16), |
8494 | N16_RA3 (insn16)); | |
35c08157 KLC |
8495 | break; |
8496 | case 7: /* or33 */ | |
1c8f6a4d KLC |
8497 | insn = N32_ALU1 (OR, N16_RT3 (insn16), N16_RT3 (insn16), |
8498 | N16_RA3 (insn16)); | |
35c08157 KLC |
8499 | break; |
8500 | } | |
8501 | goto done; | |
8502 | ||
1c8f6a4d | 8503 | case 0xb: |
35c08157 KLC |
8504 | switch (insn16 & 0x7) |
8505 | { | |
8506 | case 0: /* zeb33 */ | |
8507 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0xff); | |
8508 | break; | |
8509 | case 1: /* zeh33 */ | |
8510 | insn = N32_ALU1 (ZEH, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8511 | break; | |
8512 | case 2: /* seb33 */ | |
8513 | insn = N32_ALU1 (SEB, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8514 | break; | |
8515 | case 3: /* seh33 */ | |
8516 | insn = N32_ALU1 (SEH, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8517 | break; | |
8518 | case 4: /* xlsb33 */ | |
8519 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 1); | |
8520 | break; | |
8521 | case 5: /* x11b33 */ | |
8522 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0x7ff); | |
8523 | break; | |
8524 | case 6: /* bmski33 */ | |
8525 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16), | |
1c8f6a4d | 8526 | 1 << __GF (insn16, 3, 3)); |
35c08157 KLC |
8527 | break; |
8528 | case 7: /* fexti33 */ | |
8529 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16), | |
1c8f6a4d | 8530 | (1 << (__GF (insn16, 3, 3) + 1)) - 1); |
35c08157 KLC |
8531 | break; |
8532 | } | |
8533 | goto done; | |
8534 | } | |
8535 | ||
8536 | switch (__GF (insn16, 10, 5)) | |
8537 | { | |
8538 | case 0x0: /* mov55 or ifret16 */ | |
8539 | if (mach >= MACH_V3 && N16_RT5 (insn16) == REG_SP | |
8540 | && N16_RT5 (insn16) == N16_RA5 (insn16)) | |
1c8f6a4d | 8541 | insn = N32_JREG (JR, 0, 0, 0, 3); |
35c08157 | 8542 | else |
1c8f6a4d | 8543 | insn = N32_TYPE2 (ADDI, N16_RT5 (insn16), N16_RA5 (insn16), 0); |
35c08157 KLC |
8544 | goto done; |
8545 | case 0x1: /* movi55 */ | |
8546 | insn = N32_TYPE1 (MOVI, N16_RT5 (insn16), N16_IMM5S (insn16)); | |
8547 | goto done; | |
8548 | case 0x1b: /* addi10s (V2) */ | |
8549 | insn = N32_TYPE2 (ADDI, REG_SP, REG_SP, N16_IMM10S (insn16)); | |
8550 | goto done; | |
8551 | } | |
8552 | ||
8553 | switch (__GF (insn16, 11, 4)) | |
8554 | { | |
8555 | case 0x7: /* lwi37.fp/swi37.fp */ | |
4ec521f2 | 8556 | if (insn16 & N32_BIT (7)) /* swi37.fp */ |
35c08157 KLC |
8557 | insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16)); |
8558 | else /* lwi37.fp */ | |
8559 | insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16)); | |
8560 | goto done; | |
8561 | case 0x8: /* beqz38 */ | |
8562 | insn = N32_BR2 (BEQZ, N16_RT38 (insn16), N16_IMM8S (insn16)); | |
8563 | goto done; | |
8564 | case 0x9: /* bnez38 */ | |
8565 | insn = N32_BR2 (BNEZ, N16_RT38 (insn16), N16_IMM8S (insn16)); | |
8566 | goto done; | |
8567 | case 0xa: /* beqs38/j8, implied r5 */ | |
8568 | if (N16_RT38 (insn16) == 5) | |
8569 | insn = N32_JI (J, N16_IMM8S (insn16)); | |
8570 | else | |
8571 | insn = N32_BR1 (BEQ, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16)); | |
8572 | goto done; | |
fbaf61ad | 8573 | case 0xb: /* bnes38 and others. */ |
35c08157 KLC |
8574 | if (N16_RT38 (insn16) == 5) |
8575 | { | |
8576 | switch (__GF (insn16, 5, 3)) | |
8577 | { | |
8578 | case 0: /* jr5 */ | |
8579 | insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 0); | |
8580 | break; | |
8581 | case 4: /* ret5 */ | |
8582 | insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 1); | |
8583 | break; | |
8584 | case 1: /* jral5 */ | |
8585 | insn = N32_JREG (JRAL, REG_LP, N16_RA5 (insn16), 0, 0); | |
8586 | break; | |
8587 | case 2: /* ex9.it imm5 */ | |
8588 | /* ex9.it had no 32-bit variantl. */ | |
8589 | break; | |
8590 | case 5: /* add5.pc */ | |
8591 | /* add5.pc had no 32-bit variantl. */ | |
8592 | break; | |
8593 | } | |
8594 | } | |
8595 | else /* bnes38 */ | |
8596 | insn = N32_BR1 (BNE, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16)); | |
8597 | goto done; | |
8598 | case 0xe: /* lwi37/swi37 */ | |
8599 | if (insn16 & (1 << 7)) /* swi37.sp */ | |
8600 | insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16)); | |
8601 | else /* lwi37.sp */ | |
8602 | insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16)); | |
8603 | goto done; | |
8604 | } | |
8605 | ||
dc1e8a47 | 8606 | done: |
35c08157 KLC |
8607 | if (insn & 0x80000000) |
8608 | return 0; | |
8609 | ||
8610 | if (pinsn) | |
8611 | *pinsn = insn; | |
8612 | return 1; | |
8613 | } | |
8614 | \f | |
fbaf61ad | 8615 | |
35c08157 KLC |
8616 | static bfd_boolean |
8617 | is_sda_access_insn (unsigned long insn) | |
8618 | { | |
8619 | switch (N32_OP6 (insn)) | |
8620 | { | |
8621 | case N32_OP6_LWI: | |
8622 | case N32_OP6_LHI: | |
8623 | case N32_OP6_LHSI: | |
8624 | case N32_OP6_LBI: | |
8625 | case N32_OP6_LBSI: | |
8626 | case N32_OP6_SWI: | |
8627 | case N32_OP6_SHI: | |
8628 | case N32_OP6_SBI: | |
8629 | case N32_OP6_LWC: | |
8630 | case N32_OP6_LDC: | |
8631 | case N32_OP6_SWC: | |
8632 | case N32_OP6_SDC: | |
8633 | return TRUE; | |
8634 | default: | |
8635 | ; | |
8636 | } | |
8637 | return FALSE; | |
8638 | } | |
8639 | ||
8640 | static unsigned long | |
8641 | turn_insn_to_sda_access (uint32_t insn, bfd_signed_vma type, uint32_t *pinsn) | |
8642 | { | |
8643 | uint32_t oinsn = 0; | |
8644 | ||
8645 | switch (type) | |
8646 | { | |
8647 | case R_NDS32_GOT_LO12: | |
8648 | case R_NDS32_GOTOFF_LO12: | |
8649 | case R_NDS32_PLTREL_LO12: | |
8650 | case R_NDS32_PLT_GOTREL_LO12: | |
8651 | case R_NDS32_LO12S0_RELA: | |
8652 | switch (N32_OP6 (insn)) | |
8653 | { | |
8654 | case N32_OP6_LBI: | |
8655 | /* lbi.gp */ | |
8656 | oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), 0); | |
8657 | break; | |
8658 | case N32_OP6_LBSI: | |
8659 | /* lbsi.gp */ | |
4ec521f2 | 8660 | oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8661 | break; |
8662 | case N32_OP6_SBI: | |
8663 | /* sbi.gp */ | |
8664 | oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), 0); | |
8665 | break; | |
8666 | case N32_OP6_ORI: | |
8667 | /* addi.gp */ | |
4ec521f2 | 8668 | oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8669 | break; |
8670 | } | |
8671 | break; | |
8672 | ||
8673 | case R_NDS32_LO12S1_RELA: | |
8674 | switch (N32_OP6 (insn)) | |
8675 | { | |
8676 | case N32_OP6_LHI: | |
8677 | /* lhi.gp */ | |
8678 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), 0); | |
8679 | break; | |
8680 | case N32_OP6_LHSI: | |
8681 | /* lhsi.gp */ | |
4ec521f2 | 8682 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (18)); |
35c08157 KLC |
8683 | break; |
8684 | case N32_OP6_SHI: | |
8685 | /* shi.gp */ | |
4ec521f2 | 8686 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8687 | break; |
8688 | } | |
8689 | break; | |
8690 | ||
8691 | case R_NDS32_LO12S2_RELA: | |
8692 | switch (N32_OP6 (insn)) | |
8693 | { | |
8694 | case N32_OP6_LWI: | |
8695 | /* lwi.gp */ | |
8696 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3)); | |
8697 | break; | |
8698 | case N32_OP6_SWI: | |
8699 | /* swi.gp */ | |
8700 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (7, 17, 3)); | |
8701 | break; | |
8702 | } | |
8703 | break; | |
8704 | ||
8705 | case R_NDS32_LO12S2_DP_RELA: | |
8706 | case R_NDS32_LO12S2_SP_RELA: | |
8707 | oinsn = (insn & 0x7ff07000) | (REG_GP << 15); | |
8708 | break; | |
8709 | } | |
8710 | ||
8711 | if (oinsn) | |
8712 | *pinsn = oinsn; | |
8713 | ||
8714 | return oinsn != 0; | |
8715 | } | |
8716 | ||
8717 | /* Linker hasn't found the correct merge section for non-section symbol | |
8718 | in relax time, this work is left to the function elf_link_input_bfd(). | |
8719 | So for non-section symbol, _bfd_merged_section_offset is also needed | |
8720 | to find the correct symbol address. */ | |
8721 | ||
8722 | static bfd_vma | |
8723 | nds32_elf_rela_local_sym (bfd *abfd, Elf_Internal_Sym *sym, | |
8724 | asection **psec, Elf_Internal_Rela *rel) | |
8725 | { | |
8726 | asection *sec = *psec; | |
8727 | bfd_vma relocation; | |
8728 | ||
8729 | relocation = (sec->output_section->vma | |
8730 | + sec->output_offset + sym->st_value); | |
8731 | if ((sec->flags & SEC_MERGE) && sec->sec_info_type == SEC_INFO_TYPE_MERGE) | |
8732 | { | |
8733 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
8734 | rel->r_addend = | |
8735 | _bfd_merged_section_offset (abfd, psec, | |
8736 | elf_section_data (sec)->sec_info, | |
8737 | sym->st_value + rel->r_addend); | |
8738 | else | |
8739 | rel->r_addend = | |
8740 | _bfd_merged_section_offset (abfd, psec, | |
8741 | elf_section_data (sec)->sec_info, | |
8742 | sym->st_value) + rel->r_addend; | |
8743 | ||
8744 | if (sec != *psec) | |
8745 | { | |
8746 | /* If we have changed the section, and our original section is | |
8747 | marked with SEC_EXCLUDE, it means that the original | |
8748 | SEC_MERGE section has been completely subsumed in some | |
8749 | other SEC_MERGE section. In this case, we need to leave | |
8750 | some info around for --emit-relocs. */ | |
8751 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
8752 | sec->kept_section = *psec; | |
8753 | sec = *psec; | |
8754 | } | |
8755 | rel->r_addend -= relocation; | |
8756 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
8757 | } | |
8758 | return relocation; | |
8759 | } | |
8760 | ||
8761 | static bfd_vma | |
8762 | calculate_memory_address (bfd *abfd, Elf_Internal_Rela *irel, | |
8763 | Elf_Internal_Sym *isymbuf, | |
8764 | Elf_Internal_Shdr *symtab_hdr) | |
8765 | { | |
8766 | bfd_signed_vma foff; | |
8767 | bfd_vma symval, addend; | |
8768 | Elf_Internal_Rela irel_fn; | |
8769 | Elf_Internal_Sym *isym; | |
8770 | asection *sym_sec; | |
8771 | ||
8772 | /* Get the value of the symbol referred to by the reloc. */ | |
8773 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
8774 | { | |
8775 | /* A local symbol. */ | |
8776 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
8777 | ||
8778 | if (isym->st_shndx == SHN_UNDEF) | |
8779 | sym_sec = bfd_und_section_ptr; | |
8780 | else if (isym->st_shndx == SHN_ABS) | |
8781 | sym_sec = bfd_abs_section_ptr; | |
8782 | else if (isym->st_shndx == SHN_COMMON) | |
8783 | sym_sec = bfd_com_section_ptr; | |
8784 | else | |
8785 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
8786 | memcpy (&irel_fn, irel, sizeof (Elf_Internal_Rela)); | |
8787 | symval = nds32_elf_rela_local_sym (abfd, isym, &sym_sec, &irel_fn); | |
8788 | addend = irel_fn.r_addend; | |
8789 | } | |
8790 | else | |
8791 | { | |
8792 | unsigned long indx; | |
8793 | struct elf_link_hash_entry *h; | |
8794 | ||
8795 | /* An external symbol. */ | |
8796 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
8797 | h = elf_sym_hashes (abfd)[indx]; | |
8798 | BFD_ASSERT (h != NULL); | |
8799 | ||
8800 | while (h->root.type == bfd_link_hash_indirect | |
8801 | || h->root.type == bfd_link_hash_warning) | |
8802 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
8803 | ||
8804 | if (h->root.type != bfd_link_hash_defined | |
8805 | && h->root.type != bfd_link_hash_defweak) | |
8806 | /* This appears to be a reference to an undefined | |
8807 | symbol. Just ignore it--it will be caught by the | |
8808 | regular reloc processing. */ | |
8809 | return 0; | |
8810 | ||
8811 | if (h->root.u.def.section->flags & SEC_MERGE) | |
8812 | { | |
8813 | sym_sec = h->root.u.def.section; | |
8814 | symval = _bfd_merged_section_offset (abfd, &sym_sec, elf_section_data | |
8815 | (sym_sec)->sec_info, h->root.u.def.value); | |
8816 | symval = symval + sym_sec->output_section->vma | |
8817 | + sym_sec->output_offset; | |
8818 | } | |
8819 | else | |
8820 | symval = (h->root.u.def.value | |
8821 | + h->root.u.def.section->output_section->vma | |
8822 | + h->root.u.def.section->output_offset); | |
8823 | addend = irel->r_addend; | |
8824 | } | |
8825 | ||
8826 | foff = symval + addend; | |
8827 | ||
8828 | return foff; | |
8829 | } | |
8830 | ||
35c08157 KLC |
8831 | static int |
8832 | is_16bit_NOP (bfd *abfd ATTRIBUTE_UNUSED, | |
8833 | asection *sec, Elf_Internal_Rela *rel) | |
8834 | { | |
8835 | bfd_byte *contents; | |
8836 | unsigned short insn16; | |
8837 | ||
8838 | if (!(rel->r_addend & R_NDS32_INSN16_CONVERT_FLAG)) | |
8839 | return FALSE; | |
8840 | contents = elf_section_data (sec)->this_hdr.contents; | |
8841 | insn16 = bfd_getb16 (contents + rel->r_offset); | |
8842 | if (insn16 == NDS32_NOP16) | |
8843 | return TRUE; | |
8844 | return FALSE; | |
8845 | } | |
8846 | ||
8847 | /* It checks whether the instruction could be converted to | |
8848 | 16-bit form and returns the converted one. | |
8849 | ||
8850 | `internal_relocs' is supposed to be sorted. */ | |
8851 | ||
8852 | static int | |
8853 | is_convert_32_to_16 (bfd *abfd, asection *sec, | |
8854 | Elf_Internal_Rela *reloc, | |
8855 | Elf_Internal_Rela *internal_relocs, | |
8856 | Elf_Internal_Rela *irelend, | |
8857 | uint16_t *insn16) | |
8858 | { | |
8859 | #define NORMAL_32_TO_16 (1 << 0) | |
8860 | #define SPECIAL_32_TO_16 (1 << 1) | |
8861 | bfd_byte *contents = NULL; | |
8862 | bfd_signed_vma off; | |
8863 | bfd_vma mem_addr; | |
8864 | uint32_t insn = 0; | |
8865 | Elf_Internal_Rela *pc_rel; | |
35c08157 KLC |
8866 | Elf_Internal_Shdr *symtab_hdr; |
8867 | Elf_Internal_Sym *isymbuf = NULL; | |
8868 | int convert_type; | |
8869 | bfd_vma offset; | |
8870 | ||
8871 | if (reloc->r_offset + 4 > sec->size) | |
8872 | return FALSE; | |
8873 | ||
8874 | offset = reloc->r_offset; | |
8875 | ||
0c4bd9d9 | 8876 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE)) |
35c08157 KLC |
8877 | return FALSE; |
8878 | insn = bfd_getb32 (contents + offset); | |
8879 | ||
8880 | if (nds32_convert_32_to_16 (abfd, insn, insn16, NULL)) | |
8881 | convert_type = NORMAL_32_TO_16; | |
8882 | else if (special_convert_32_to_16 (insn, insn16, reloc)) | |
8883 | convert_type = SPECIAL_32_TO_16; | |
8884 | else | |
8885 | return FALSE; | |
8886 | ||
8887 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8888 | if (!nds32_get_local_syms (abfd, sec, &isymbuf)) | |
8889 | return FALSE; | |
8890 | ||
8891 | /* Find the first relocation of the same relocation-type, | |
8892 | so we iteratie them forward. */ | |
8893 | pc_rel = reloc; | |
1c8f6a4d | 8894 | while ((pc_rel - 1) >= internal_relocs && pc_rel[-1].r_offset == offset) |
35c08157 KLC |
8895 | pc_rel--; |
8896 | ||
8897 | for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++) | |
8898 | { | |
8899 | if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA | |
8900 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA | |
8901 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA | |
8902 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL) | |
8903 | { | |
fbaf61ad | 8904 | off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr); |
1c8f6a4d KLC |
8905 | if (off >= ACCURATE_8BIT_S1 || off < -ACCURATE_8BIT_S1 |
8906 | || off == 0) | |
35c08157 KLC |
8907 | return FALSE; |
8908 | break; | |
8909 | } | |
8910 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA) | |
8911 | { | |
8912 | /* movi => movi55 */ | |
1c8f6a4d KLC |
8913 | mem_addr = calculate_memory_address (abfd, pc_rel, isymbuf, |
8914 | symtab_hdr); | |
8915 | /* mem_addr is unsigned, but the value should | |
8916 | be between [-16, 15]. */ | |
35c08157 KLC |
8917 | if ((mem_addr + 0x10) >> 5) |
8918 | return FALSE; | |
8919 | break; | |
8920 | } | |
1c8f6a4d KLC |
8921 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_20) |
8922 | || (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_LO12)) | |
8923 | { | |
8924 | /* It never happen movi to movi55 for R_NDS32_TLS_LE_20, | |
8925 | because it can be relaxed to addi for TLS_LE_ADD. */ | |
8926 | return FALSE; | |
8927 | } | |
35c08157 KLC |
8928 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA |
8929 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA) | |
8930 | && (reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) | |
8931 | && convert_type == SPECIAL_32_TO_16) | |
8932 | { | |
8933 | /* fp-as-gp | |
8934 | We've selected a best fp-base for this access, so we can | |
8935 | always resolve it anyway. Do nothing. */ | |
8936 | break; | |
8937 | } | |
8938 | else if ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_NONE | |
8939 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_RELA_GNU_VTINHERIT)) | |
8940 | || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_RELA_GNU_VTENTRY) | |
8941 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_INSN16)) | |
8942 | || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_LOADSTORE) | |
8943 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_DWARF2_OP1_RELA))) | |
8944 | { | |
1c8f6a4d KLC |
8945 | /* Prevent unresolved addi instruction translate |
8946 | to addi45 or addi333. */ | |
35c08157 KLC |
8947 | return FALSE; |
8948 | } | |
1c8f6a4d KLC |
8949 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA)) |
8950 | { | |
fbaf61ad | 8951 | off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr); |
1c8f6a4d KLC |
8952 | if (off >= ACCURATE_U9BIT_S1 || off <= 0) |
8953 | return FALSE; | |
8954 | break; | |
8955 | } | |
35c08157 KLC |
8956 | } |
8957 | ||
8958 | return TRUE; | |
8959 | } | |
8960 | ||
8961 | static void | |
8962 | nds32_elf_write_16 (bfd *abfd ATTRIBUTE_UNUSED, bfd_byte *contents, | |
8963 | Elf_Internal_Rela *reloc, | |
8964 | Elf_Internal_Rela *internal_relocs, | |
8965 | Elf_Internal_Rela *irelend, | |
8966 | unsigned short insn16) | |
8967 | { | |
8968 | Elf_Internal_Rela *pc_rel; | |
8969 | bfd_vma offset; | |
8970 | ||
8971 | offset = reloc->r_offset; | |
8972 | bfd_putb16 (insn16, contents + offset); | |
8973 | /* Find the first relocation of the same relocation-type, | |
8974 | so we iteratie them forward. */ | |
8975 | pc_rel = reloc; | |
8976 | while ((pc_rel - 1) > internal_relocs && pc_rel[-1].r_offset == offset) | |
8977 | pc_rel--; | |
8978 | ||
8979 | for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++) | |
8980 | { | |
8981 | if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA | |
8982 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA | |
8983 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA) | |
8984 | { | |
8985 | pc_rel->r_info = | |
8986 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PCREL_RELA); | |
8987 | } | |
8988 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL) | |
8989 | pc_rel->r_info = | |
8990 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PLTREL); | |
8991 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA) | |
8992 | pc_rel->r_info = | |
8993 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_5_RELA); | |
8994 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA | |
8995 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA) | |
8996 | pc_rel->r_info = | |
8997 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_SDA_FP7U2_RELA); | |
1c8f6a4d KLC |
8998 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA)) |
8999 | pc_rel->r_info = | |
9000 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_10IFCU_PCREL_RELA); | |
35c08157 KLC |
9001 | } |
9002 | } | |
9003 | ||
9004 | /* Find a relocation of type specified by `reloc_type' | |
9005 | of the same r_offset with reloc. | |
9006 | If not found, return irelend. | |
9007 | ||
9008 | Assuming relocations are sorted by r_offset, | |
9009 | we find the relocation from `reloc' backward untill relocs, | |
9010 | or find it from `reloc' forward untill irelend. */ | |
9011 | ||
9012 | static Elf_Internal_Rela * | |
9013 | find_relocs_at_address (Elf_Internal_Rela *reloc, | |
9014 | Elf_Internal_Rela *relocs, | |
9015 | Elf_Internal_Rela *irelend, | |
9016 | enum elf_nds32_reloc_type reloc_type) | |
9017 | { | |
9018 | Elf_Internal_Rela *rel_t; | |
9019 | ||
9020 | /* Find backward. */ | |
9021 | for (rel_t = reloc; | |
9022 | rel_t >= relocs && rel_t->r_offset == reloc->r_offset; | |
9023 | rel_t--) | |
9024 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
9025 | return rel_t; | |
9026 | ||
1c8f6a4d | 9027 | /* We didn't find it backward. Try find it forward. */ |
35c08157 KLC |
9028 | for (rel_t = reloc; |
9029 | rel_t < irelend && rel_t->r_offset == reloc->r_offset; | |
9030 | rel_t++) | |
9031 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
9032 | return rel_t; | |
9033 | ||
9034 | return irelend; | |
9035 | } | |
9036 | ||
9037 | /* Find a relocation of specified type and offset. | |
9038 | `reloc' is just a refence point to find a relocation at specified offset. | |
9039 | If not found, return irelend. | |
9040 | ||
9041 | Assuming relocations are sorted by r_offset, | |
9042 | we find the relocation from `reloc' backward untill relocs, | |
9043 | or find it from `reloc' forward untill irelend. */ | |
9044 | ||
9045 | static Elf_Internal_Rela * | |
9046 | find_relocs_at_address_addr (Elf_Internal_Rela *reloc, | |
9047 | Elf_Internal_Rela *relocs, | |
9048 | Elf_Internal_Rela *irelend, | |
6cae483a | 9049 | enum elf_nds32_reloc_type reloc_type, |
35c08157 KLC |
9050 | bfd_vma offset_p) |
9051 | { | |
9052 | Elf_Internal_Rela *rel_t = NULL; | |
9053 | ||
9054 | /* First, we try to find a relocation of offset `offset_p', | |
9055 | and then we use find_relocs_at_address to find specific type. */ | |
9056 | ||
9057 | if (reloc->r_offset > offset_p) | |
9058 | { | |
9059 | /* Find backward. */ | |
9060 | for (rel_t = reloc; | |
9061 | rel_t >= relocs && rel_t->r_offset > offset_p; rel_t--) | |
9062 | /* Do nothing. */; | |
9063 | } | |
9064 | else if (reloc->r_offset < offset_p) | |
9065 | { | |
9066 | /* Find forward. */ | |
9067 | for (rel_t = reloc; | |
9068 | rel_t < irelend && rel_t->r_offset < offset_p; rel_t++) | |
9069 | /* Do nothing. */; | |
9070 | } | |
9071 | else | |
9072 | rel_t = reloc; | |
9073 | ||
9074 | /* Not found? */ | |
9075 | if (rel_t < relocs || rel_t == irelend || rel_t->r_offset != offset_p) | |
9076 | return irelend; | |
9077 | ||
9078 | return find_relocs_at_address (rel_t, relocs, irelend, reloc_type); | |
9079 | } | |
9080 | ||
fbaf61ad NC |
9081 | typedef struct nds32_elf_blank nds32_elf_blank_t; |
9082 | struct nds32_elf_blank | |
35c08157 | 9083 | { |
fbaf61ad NC |
9084 | /* Where the blank begins. */ |
9085 | bfd_vma offset; | |
9086 | /* The size of the blank. */ | |
9087 | bfd_vma size; | |
9088 | /* The accumulative size before this blank. */ | |
9089 | bfd_vma total_size; | |
9090 | nds32_elf_blank_t *next; | |
9091 | nds32_elf_blank_t *prev; | |
9092 | }; | |
35c08157 KLC |
9093 | |
9094 | static nds32_elf_blank_t *blank_free_list = NULL; | |
9095 | ||
9096 | static nds32_elf_blank_t * | |
9097 | create_nds32_elf_blank (bfd_vma offset_p, bfd_vma size_p) | |
9098 | { | |
9099 | nds32_elf_blank_t *blank_t; | |
9100 | ||
9101 | if (blank_free_list) | |
9102 | { | |
9103 | blank_t = blank_free_list; | |
9104 | blank_free_list = blank_free_list->next; | |
9105 | } | |
9106 | else | |
9107 | blank_t = bfd_malloc (sizeof (nds32_elf_blank_t)); | |
9108 | ||
9109 | if (blank_t == NULL) | |
9110 | return NULL; | |
9111 | ||
9112 | blank_t->offset = offset_p; | |
9113 | blank_t->size = size_p; | |
9114 | blank_t->total_size = 0; | |
9115 | blank_t->next = NULL; | |
9116 | blank_t->prev = NULL; | |
9117 | ||
9118 | return blank_t; | |
9119 | } | |
9120 | ||
9121 | static void | |
9122 | remove_nds32_elf_blank (nds32_elf_blank_t *blank_p) | |
9123 | { | |
9124 | if (blank_free_list) | |
9125 | { | |
9126 | blank_free_list->prev = blank_p; | |
9127 | blank_p->next = blank_free_list; | |
9128 | } | |
9129 | else | |
9130 | blank_p->next = NULL; | |
9131 | ||
9132 | blank_p->prev = NULL; | |
9133 | blank_free_list = blank_p; | |
9134 | } | |
9135 | ||
9136 | static void | |
9137 | clean_nds32_elf_blank (void) | |
9138 | { | |
9139 | nds32_elf_blank_t *blank_t; | |
9140 | ||
9141 | while (blank_free_list) | |
9142 | { | |
9143 | blank_t = blank_free_list; | |
9144 | blank_free_list = blank_free_list->next; | |
9145 | free (blank_t); | |
9146 | } | |
9147 | } | |
9148 | ||
9149 | static nds32_elf_blank_t * | |
9150 | search_nds32_elf_blank (nds32_elf_blank_t *blank_p, bfd_vma addr) | |
9151 | { | |
9152 | nds32_elf_blank_t *blank_t; | |
9153 | ||
9154 | if (!blank_p) | |
9155 | return NULL; | |
9156 | blank_t = blank_p; | |
9157 | ||
9158 | while (blank_t && addr < blank_t->offset) | |
9159 | blank_t = blank_t->prev; | |
9160 | while (blank_t && blank_t->next && addr >= blank_t->next->offset) | |
9161 | blank_t = blank_t->next; | |
9162 | ||
9163 | return blank_t; | |
9164 | } | |
9165 | ||
9166 | static bfd_vma | |
9167 | get_nds32_elf_blank_total (nds32_elf_blank_t **blank_p, bfd_vma addr, | |
9168 | int overwrite) | |
9169 | { | |
9170 | nds32_elf_blank_t *blank_t; | |
9171 | ||
9172 | blank_t = search_nds32_elf_blank (*blank_p, addr); | |
9173 | if (!blank_t) | |
9174 | return 0; | |
9175 | ||
9176 | if (overwrite) | |
9177 | *blank_p = blank_t; | |
9178 | ||
9179 | if (addr < blank_t->offset + blank_t->size) | |
9180 | return blank_t->total_size + (addr - blank_t->offset); | |
9181 | else | |
9182 | return blank_t->total_size + blank_t->size; | |
9183 | } | |
9184 | ||
9185 | static bfd_boolean | |
9186 | insert_nds32_elf_blank (nds32_elf_blank_t **blank_p, bfd_vma addr, bfd_vma len) | |
9187 | { | |
9188 | nds32_elf_blank_t *blank_t, *blank_t2; | |
9189 | ||
9190 | if (!*blank_p) | |
9191 | { | |
9192 | *blank_p = create_nds32_elf_blank (addr, len); | |
9193 | return *blank_p ? TRUE : FALSE; | |
9194 | } | |
9195 | ||
9196 | blank_t = search_nds32_elf_blank (*blank_p, addr); | |
9197 | ||
9198 | if (blank_t == NULL) | |
9199 | { | |
9200 | blank_t = create_nds32_elf_blank (addr, len); | |
9201 | if (!blank_t) | |
9202 | return FALSE; | |
9203 | while ((*blank_p)->prev != NULL) | |
9204 | *blank_p = (*blank_p)->prev; | |
9205 | blank_t->next = *blank_p; | |
9206 | (*blank_p)->prev = blank_t; | |
9207 | (*blank_p) = blank_t; | |
9208 | return TRUE; | |
9209 | } | |
9210 | ||
9211 | if (addr < blank_t->offset + blank_t->size) | |
9212 | { | |
fbaf61ad NC |
9213 | /* Extend the origin blank. */ |
9214 | if (addr + len > blank_t->offset + blank_t->size) | |
9215 | blank_t->size = addr + len - blank_t->offset; | |
35c08157 KLC |
9216 | } |
9217 | else | |
9218 | { | |
9219 | blank_t2 = create_nds32_elf_blank (addr, len); | |
9220 | if (!blank_t2) | |
9221 | return FALSE; | |
9222 | if (blank_t->next) | |
9223 | { | |
9224 | blank_t->next->prev = blank_t2; | |
9225 | blank_t2->next = blank_t->next; | |
9226 | } | |
9227 | blank_t2->prev = blank_t; | |
9228 | blank_t->next = blank_t2; | |
9229 | *blank_p = blank_t2; | |
9230 | } | |
9231 | ||
9232 | return TRUE; | |
9233 | } | |
9234 | ||
9235 | static bfd_boolean | |
9236 | insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t **blank_p, bfd_vma addr, | |
9237 | bfd_vma len) | |
9238 | { | |
9239 | nds32_elf_blank_t *blank_t; | |
9240 | ||
9241 | if (!insert_nds32_elf_blank (blank_p, addr, len)) | |
9242 | return FALSE; | |
9243 | ||
9244 | blank_t = *blank_p; | |
9245 | ||
9246 | if (!blank_t->prev) | |
9247 | { | |
9248 | blank_t->total_size = 0; | |
9249 | blank_t = blank_t->next; | |
9250 | } | |
9251 | ||
9252 | while (blank_t) | |
9253 | { | |
9254 | blank_t->total_size = blank_t->prev->total_size + blank_t->prev->size; | |
9255 | blank_t = blank_t->next; | |
9256 | } | |
9257 | ||
9258 | return TRUE; | |
9259 | } | |
9260 | ||
9261 | static void | |
9262 | calc_nds32_blank_total (nds32_elf_blank_t *blank_p) | |
9263 | { | |
9264 | nds32_elf_blank_t *blank_t; | |
9265 | bfd_vma total_size = 0; | |
9266 | ||
9267 | if (!blank_p) | |
9268 | return; | |
9269 | ||
9270 | blank_t = blank_p; | |
9271 | while (blank_t->prev) | |
9272 | blank_t = blank_t->prev; | |
9273 | while (blank_t) | |
9274 | { | |
9275 | blank_t->total_size = total_size; | |
9276 | total_size += blank_t->size; | |
9277 | blank_t = blank_t->next; | |
9278 | } | |
9279 | } | |
9280 | ||
9281 | static bfd_boolean | |
9282 | nds32_elf_relax_delete_blanks (bfd *abfd, asection *sec, | |
9283 | nds32_elf_blank_t *blank_p) | |
9284 | { | |
9285 | Elf_Internal_Shdr *symtab_hdr; /* Symbol table header of this bfd. */ | |
1c8f6a4d | 9286 | Elf_Internal_Sym *isym = NULL; /* Symbol table of this bfd. */ |
35c08157 KLC |
9287 | Elf_Internal_Sym *isymend; /* Symbol entry iterator. */ |
9288 | unsigned int sec_shndx; /* The section the be relaxed. */ | |
9289 | bfd_byte *contents; /* Contents data of iterating section. */ | |
9290 | Elf_Internal_Rela *internal_relocs; | |
9291 | Elf_Internal_Rela *irel; | |
9292 | Elf_Internal_Rela *irelend; | |
9293 | struct elf_link_hash_entry **sym_hashes; | |
9294 | struct elf_link_hash_entry **end_hashes; | |
9295 | unsigned int symcount; | |
9296 | asection *sect; | |
9297 | nds32_elf_blank_t *blank_t; | |
9298 | nds32_elf_blank_t *blank_t2; | |
9299 | nds32_elf_blank_t *blank_head; | |
9300 | ||
9301 | blank_head = blank_t = blank_p; | |
9302 | while (blank_head->prev != NULL) | |
9303 | blank_head = blank_head->prev; | |
9304 | while (blank_t->next != NULL) | |
9305 | blank_t = blank_t->next; | |
9306 | ||
9307 | if (blank_t->offset + blank_t->size <= sec->size) | |
9308 | { | |
9309 | blank_t->next = create_nds32_elf_blank (sec->size + 4, 0); | |
9310 | blank_t->next->prev = blank_t; | |
9311 | } | |
9312 | if (blank_head->offset > 0) | |
9313 | { | |
9314 | blank_head->prev = create_nds32_elf_blank (0, 0); | |
9315 | blank_head->prev->next = blank_head; | |
9316 | blank_head = blank_head->prev; | |
9317 | } | |
9318 | ||
9319 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
9320 | ||
9321 | /* The deletion must stop at the next ALIGN reloc for an alignment | |
9322 | power larger than the number of bytes we are deleting. */ | |
9323 | ||
9324 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
9325 | if (!nds32_get_local_syms (abfd, sec, &isym)) | |
9326 | return FALSE; | |
9327 | ||
9328 | if (isym == NULL) | |
9329 | { | |
9330 | isym = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
9331 | symtab_hdr->sh_info, 0, NULL, NULL, NULL); | |
9332 | symtab_hdr->contents = (bfd_byte *) isym; | |
9333 | } | |
9334 | ||
9335 | if (isym == NULL || symtab_hdr->sh_info == 0) | |
9336 | return FALSE; | |
9337 | ||
9338 | blank_t = blank_head; | |
9339 | calc_nds32_blank_total (blank_head); | |
9340 | ||
9341 | for (sect = abfd->sections; sect != NULL; sect = sect->next) | |
9342 | { | |
9343 | /* Adjust all the relocs. */ | |
9344 | ||
9345 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
9346 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sect, NULL, NULL, | |
9347 | TRUE /* keep_memory */); | |
9348 | irelend = internal_relocs + sect->reloc_count; | |
9349 | ||
9350 | blank_t = blank_head; | |
9351 | blank_t2 = blank_head; | |
9352 | ||
9353 | if (!(sect->flags & SEC_RELOC)) | |
9354 | continue; | |
9355 | ||
0c4bd9d9 | 9356 | nds32_get_section_contents (abfd, sect, &contents, TRUE); |
35c08157 KLC |
9357 | |
9358 | for (irel = internal_relocs; irel < irelend; irel++) | |
9359 | { | |
9360 | bfd_vma raddr; | |
9361 | ||
9362 | if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_DIFF8 | |
9363 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_DIFF32 | |
9364 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx) | |
9365 | { | |
9366 | unsigned long val = 0; | |
1c8f6a4d KLC |
9367 | unsigned long mask; |
9368 | long before, between; | |
6cae483a | 9369 | long offset = 0; |
35c08157 KLC |
9370 | |
9371 | switch (ELF32_R_TYPE (irel->r_info)) | |
9372 | { | |
9373 | case R_NDS32_DIFF8: | |
1c8f6a4d | 9374 | offset = bfd_get_8 (abfd, contents + irel->r_offset); |
35c08157 KLC |
9375 | break; |
9376 | case R_NDS32_DIFF16: | |
1c8f6a4d | 9377 | offset = bfd_get_16 (abfd, contents + irel->r_offset); |
35c08157 KLC |
9378 | break; |
9379 | case R_NDS32_DIFF32: | |
9380 | val = bfd_get_32 (abfd, contents + irel->r_offset); | |
1c8f6a4d KLC |
9381 | /* Get the signed bit and mask for the high part. The |
9382 | gcc will alarm when right shift 32-bit since the | |
9383 | type size of long may be 32-bit. */ | |
9384 | mask = 0 - (val >> 31); | |
9385 | if (mask) | |
9386 | offset = (val | (mask - 0xffffffff)); | |
9387 | else | |
9388 | offset = val; | |
35c08157 KLC |
9389 | break; |
9390 | default: | |
9391 | BFD_ASSERT (0); | |
9392 | } | |
9393 | ||
9394 | /* DIFF value | |
9395 | 0 |encoded in location| | |
9396 | |------------|-------------------|--------- | |
9397 | sym+off(addend) | |
9398 | -- before ---| ***************** | |
9399 | --------------------- between ---| | |
9400 | ||
1c8f6a4d KLC |
9401 | We only care how much data are relax between DIFF, |
9402 | marked as ***. */ | |
35c08157 KLC |
9403 | |
9404 | before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0); | |
1c8f6a4d KLC |
9405 | between = get_nds32_elf_blank_total (&blank_t, |
9406 | irel->r_addend + offset, 0); | |
35c08157 KLC |
9407 | if (between == before) |
9408 | goto done_adjust_diff; | |
9409 | ||
9410 | switch (ELF32_R_TYPE (irel->r_info)) | |
9411 | { | |
9412 | case R_NDS32_DIFF8: | |
1c8f6a4d KLC |
9413 | bfd_put_8 (abfd, offset - (between - before), |
9414 | contents + irel->r_offset); | |
35c08157 KLC |
9415 | break; |
9416 | case R_NDS32_DIFF16: | |
1c8f6a4d KLC |
9417 | bfd_put_16 (abfd, offset - (between - before), |
9418 | contents + irel->r_offset); | |
35c08157 KLC |
9419 | break; |
9420 | case R_NDS32_DIFF32: | |
1c8f6a4d KLC |
9421 | bfd_put_32 (abfd, offset - (between - before), |
9422 | contents + irel->r_offset); | |
35c08157 KLC |
9423 | break; |
9424 | } | |
9425 | } | |
9426 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_DIFF_ULEB128 | |
9427 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx) | |
9428 | { | |
9429 | bfd_vma val = 0; | |
9430 | unsigned int len = 0; | |
9431 | unsigned long before, between; | |
9432 | bfd_byte *endp, *p; | |
9433 | ||
4265548c PA |
9434 | val = _bfd_read_unsigned_leb128 (abfd, contents + irel->r_offset, |
9435 | &len); | |
35c08157 KLC |
9436 | |
9437 | before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0); | |
1c8f6a4d KLC |
9438 | between = get_nds32_elf_blank_total (&blank_t, |
9439 | irel->r_addend + val, 0); | |
35c08157 KLC |
9440 | if (between == before) |
9441 | goto done_adjust_diff; | |
9442 | ||
9443 | p = contents + irel->r_offset; | |
9444 | endp = p + len -1; | |
9445 | memset (p, 0x80, len); | |
9446 | *(endp) = 0; | |
9447 | p = write_uleb128 (p, val - (between - before)) - 1; | |
9448 | if (p < endp) | |
9449 | *p |= 0x80; | |
9450 | } | |
dc1e8a47 | 9451 | done_adjust_diff: |
35c08157 KLC |
9452 | |
9453 | if (sec == sect) | |
9454 | { | |
9455 | raddr = irel->r_offset; | |
1c8f6a4d KLC |
9456 | irel->r_offset -= get_nds32_elf_blank_total (&blank_t2, |
9457 | irel->r_offset, 1); | |
35c08157 KLC |
9458 | |
9459 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE) | |
9460 | continue; | |
9461 | if (blank_t2 && blank_t2->next | |
1c8f6a4d KLC |
9462 | && (blank_t2->offset > raddr |
9463 | || blank_t2->next->offset <= raddr)) | |
4eca0228 | 9464 | _bfd_error_handler |
38f14ab8 AM |
9465 | (_("%pB: error: search_nds32_elf_blank reports wrong node"), |
9466 | abfd); | |
35c08157 KLC |
9467 | |
9468 | /* Mark reloc in deleted portion as NONE. | |
9469 | For some relocs like R_NDS32_LABEL that doesn't modify the | |
9470 | content in the section. R_NDS32_LABEL doesn't belong to the | |
9471 | instruction in the section, so we should preserve it. */ | |
9472 | if (raddr >= blank_t2->offset | |
9473 | && raddr < blank_t2->offset + blank_t2->size | |
9474 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL | |
9475 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_BEGIN | |
9476 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_END | |
9477 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY | |
9478 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_SUBTRAHEND | |
9479 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_MINUEND) | |
9480 | { | |
9481 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
9482 | R_NDS32_NONE); | |
9483 | continue; | |
9484 | } | |
9485 | } | |
9486 | ||
9487 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE | |
9488 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
9489 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY) | |
9490 | continue; | |
9491 | ||
9492 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info | |
9493 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx | |
9494 | && ELF_ST_TYPE (isym[ELF32_R_SYM (irel->r_info)].st_info) == STT_SECTION) | |
9495 | { | |
9496 | if (irel->r_addend <= sec->size) | |
9497 | irel->r_addend -= | |
9498 | get_nds32_elf_blank_total (&blank_t, irel->r_addend, 1); | |
9499 | } | |
9500 | } | |
9501 | } | |
9502 | ||
9503 | /* Adjust the local symbols defined in this section. */ | |
9504 | blank_t = blank_head; | |
9505 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
9506 | { | |
9507 | if (isym->st_shndx == sec_shndx) | |
9508 | { | |
9509 | if (isym->st_value <= sec->size) | |
9510 | { | |
9511 | bfd_vma ahead; | |
9512 | bfd_vma orig_addr = isym->st_value; | |
9513 | ||
9514 | ahead = get_nds32_elf_blank_total (&blank_t, isym->st_value, 1); | |
9515 | isym->st_value -= ahead; | |
9516 | ||
9517 | /* Adjust function size. */ | |
1c8f6a4d KLC |
9518 | if (ELF32_ST_TYPE (isym->st_info) == STT_FUNC |
9519 | && isym->st_size > 0) | |
9520 | isym->st_size -= | |
9521 | get_nds32_elf_blank_total | |
9522 | (&blank_t, orig_addr + isym->st_size, 0) - ahead; | |
35c08157 KLC |
9523 | } |
9524 | } | |
9525 | } | |
9526 | ||
9527 | /* Now adjust the global symbols defined in this section. */ | |
9528 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
9529 | - symtab_hdr->sh_info); | |
9530 | sym_hashes = elf_sym_hashes (abfd); | |
9531 | end_hashes = sym_hashes + symcount; | |
9532 | blank_t = blank_head; | |
9533 | for (; sym_hashes < end_hashes; sym_hashes++) | |
9534 | { | |
9535 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
9536 | ||
9537 | if ((sym_hash->root.type == bfd_link_hash_defined | |
9538 | || sym_hash->root.type == bfd_link_hash_defweak) | |
9539 | && sym_hash->root.u.def.section == sec) | |
9540 | { | |
9541 | if (sym_hash->root.u.def.value <= sec->size) | |
9542 | { | |
9543 | bfd_vma ahead; | |
9544 | bfd_vma orig_addr = sym_hash->root.u.def.value; | |
9545 | ||
9546 | ahead = get_nds32_elf_blank_total (&blank_t, sym_hash->root.u.def.value, 1); | |
9547 | sym_hash->root.u.def.value -= ahead; | |
9548 | ||
9549 | /* Adjust function size. */ | |
9550 | if (sym_hash->type == STT_FUNC) | |
1c8f6a4d KLC |
9551 | sym_hash->size -= |
9552 | get_nds32_elf_blank_total | |
9553 | (&blank_t, orig_addr + sym_hash->size, 0) - ahead; | |
35c08157 KLC |
9554 | |
9555 | } | |
9556 | } | |
9557 | } | |
9558 | ||
9559 | contents = elf_section_data (sec)->this_hdr.contents; | |
9560 | blank_t = blank_head; | |
9561 | while (blank_t->next) | |
9562 | { | |
9563 | /* Actually delete the bytes. */ | |
9564 | ||
9565 | /* If current blank is the last blank overlap with current section, | |
9566 | go to finish process. */ | |
9567 | if (sec->size <= (blank_t->next->offset)) | |
9568 | break; | |
9569 | ||
9570 | memmove (contents + blank_t->offset - blank_t->total_size, | |
9571 | contents + blank_t->offset + blank_t->size, | |
9572 | blank_t->next->offset - (blank_t->offset + blank_t->size)); | |
9573 | ||
9574 | blank_t = blank_t->next; | |
9575 | } | |
9576 | ||
9577 | if (sec->size > (blank_t->offset + blank_t->size)) | |
9578 | { | |
9579 | /* There are remaining code between blank and section boundary. | |
9580 | Move the remaining code to appropriate location. */ | |
9581 | memmove (contents + blank_t->offset - blank_t->total_size, | |
9582 | contents + blank_t->offset + blank_t->size, | |
9583 | sec->size - (blank_t->offset + blank_t->size)); | |
9584 | sec->size -= blank_t->total_size + blank_t->size; | |
9585 | } | |
9586 | else | |
9587 | /* This blank is not entirely included in the section, | |
9588 | reduce the section size by only part of the blank size. */ | |
9589 | sec->size -= blank_t->total_size + (sec->size - blank_t->offset); | |
9590 | ||
9591 | while (blank_head) | |
9592 | { | |
9593 | blank_t = blank_head; | |
9594 | blank_head = blank_head->next; | |
9595 | remove_nds32_elf_blank (blank_t); | |
9596 | } | |
9597 | ||
9598 | return TRUE; | |
9599 | } | |
9600 | ||
9601 | /* Get the contents of a section. */ | |
9602 | ||
9603 | static int | |
0c4bd9d9 KLC |
9604 | nds32_get_section_contents (bfd *abfd, asection *sec, |
9605 | bfd_byte **contents_p, bfd_boolean cache) | |
35c08157 KLC |
9606 | { |
9607 | /* Get the section contents. */ | |
9608 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
9609 | *contents_p = elf_section_data (sec)->this_hdr.contents; | |
9610 | else | |
9611 | { | |
9612 | if (!bfd_malloc_and_get_section (abfd, sec, contents_p)) | |
9613 | return FALSE; | |
0c4bd9d9 KLC |
9614 | if (cache) |
9615 | elf_section_data (sec)->this_hdr.contents = *contents_p; | |
35c08157 KLC |
9616 | } |
9617 | ||
9618 | return TRUE; | |
9619 | } | |
9620 | ||
9621 | /* Get the contents of the internal symbol of abfd. */ | |
9622 | ||
9623 | static int | |
9624 | nds32_get_local_syms (bfd *abfd, asection *sec ATTRIBUTE_UNUSED, | |
9625 | Elf_Internal_Sym **isymbuf_p) | |
9626 | { | |
9627 | Elf_Internal_Shdr *symtab_hdr; | |
9628 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
9629 | ||
9630 | /* Read this BFD's local symbols if we haven't done so already. */ | |
9631 | if (*isymbuf_p == NULL && symtab_hdr->sh_info != 0) | |
9632 | { | |
9633 | *isymbuf_p = (Elf_Internal_Sym *) symtab_hdr->contents; | |
9634 | if (*isymbuf_p == NULL) | |
9635 | { | |
9636 | *isymbuf_p = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
9637 | symtab_hdr->sh_info, 0, | |
9638 | NULL, NULL, NULL); | |
9639 | if (*isymbuf_p == NULL) | |
9640 | return FALSE; | |
9641 | } | |
9642 | } | |
9643 | symtab_hdr->contents = (bfd_byte *) (*isymbuf_p); | |
9644 | ||
9645 | return TRUE; | |
9646 | } | |
9647 | ||
9648 | /* Range of small data. */ | |
1c8f6a4d KLC |
9649 | static bfd_vma sdata_range[2][2]; |
9650 | static bfd_vma const sdata_init_range[2] = | |
9651 | { ACCURATE_12BIT_S1, ACCURATE_19BIT }; | |
35c08157 KLC |
9652 | |
9653 | static int | |
9654 | nds32_elf_insn_size (bfd *abfd ATTRIBUTE_UNUSED, | |
9655 | bfd_byte *contents, bfd_vma addr) | |
9656 | { | |
9657 | unsigned long insn = bfd_getb32 (contents + addr); | |
9658 | ||
9659 | if (insn & 0x80000000) | |
9660 | return 2; | |
9661 | ||
9662 | return 4; | |
9663 | } | |
9664 | ||
9665 | /* Set the gp relax range. We have to measure the safe range | |
9666 | to do gp relaxation. */ | |
9667 | ||
9668 | static void | |
9669 | relax_range_measurement (bfd *abfd) | |
9670 | { | |
9671 | asection *sec_f, *sec_b; | |
9672 | /* For upper bound. */ | |
9673 | bfd_vma maxpgsz = get_elf_backend_data (abfd)->maxpagesize; | |
9674 | bfd_vma align; | |
35c08157 KLC |
9675 | static int decide_relax_range = 0; |
9676 | int i; | |
fbaf61ad | 9677 | int range_number = ARRAY_SIZE (sdata_init_range); |
35c08157 KLC |
9678 | |
9679 | if (decide_relax_range) | |
9680 | return; | |
9681 | decide_relax_range = 1; | |
9682 | ||
9683 | if (sda_rela_sec == NULL) | |
9684 | { | |
9685 | /* Since there is no data sections, we assume the range is page size. */ | |
1c8f6a4d | 9686 | for (i = 0; i < range_number; i++) |
35c08157 KLC |
9687 | { |
9688 | sdata_range[i][0] = sdata_init_range[i] - 0x1000; | |
9689 | sdata_range[i][1] = sdata_init_range[i] - 0x1000; | |
9690 | } | |
9691 | return; | |
9692 | } | |
9693 | ||
9694 | /* Get the biggest alignment power after the gp located section. */ | |
9695 | sec_f = sda_rela_sec->output_section; | |
9696 | sec_b = sec_f->next; | |
9697 | align = 0; | |
9698 | while (sec_b != NULL) | |
9699 | { | |
9700 | if ((unsigned)(1 << sec_b->alignment_power) > align) | |
9701 | align = (1 << sec_b->alignment_power); | |
9702 | sec_b = sec_b->next; | |
9703 | } | |
9704 | ||
9705 | /* I guess we can not determine the section before | |
9706 | gp located section, so we assume the align is max page size. */ | |
1c8f6a4d | 9707 | for (i = 0; i < range_number; i++) |
35c08157 | 9708 | { |
1c8f6a4d | 9709 | sdata_range[i][1] = sdata_init_range[i] - align; |
35c08157 | 9710 | BFD_ASSERT (sdata_range[i][1] <= sdata_init_range[i]); |
1c8f6a4d | 9711 | sdata_range[i][0] = sdata_init_range[i] - maxpgsz; |
35c08157 KLC |
9712 | BFD_ASSERT (sdata_range[i][0] <= sdata_init_range[i]); |
9713 | } | |
9714 | } | |
9715 | ||
9716 | /* These are macros used to check flags encoded in r_addend. | |
9717 | They are only used by nds32_elf_relax_section (). */ | |
9718 | #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff) | |
9719 | #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000) | |
9720 | #define IS_OPTIMIZE(addend) ((addend) & 0x40000000) | |
9721 | #define IS_16BIT_ON(addend) ((addend) & 0x20000000) | |
9722 | ||
695344c0 NC |
9723 | static const char * unrecognized_reloc_msg = |
9724 | /* xgettext:c-format */ | |
2dcf00ce | 9725 | N_("%pB: warning: %s points to unrecognized reloc at %#" PRIx64); |
695344c0 | 9726 | |
1c8f6a4d KLC |
9727 | /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */ |
9728 | ||
35c08157 | 9729 | static bfd_boolean |
1c8f6a4d KLC |
9730 | nds32_elf_relax_longcall1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
9731 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9732 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9733 | Elf_Internal_Shdr *symtab_hdr) | |
9734 | { | |
9735 | /* There are 3 variations for LONGCALL1 | |
9736 | case 4-4-2; 16-bit on, optimize off or optimize for space | |
07d6d2b8 | 9737 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9738 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9739 | jral5 ta ; |
1c8f6a4d KLC |
9740 | |
9741 | case 4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 | 9742 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9743 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9744 | jral ta ; |
1c8f6a4d KLC |
9745 | |
9746 | case 4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 | 9747 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9748 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9749 | jral ta ; |
1c8f6a4d KLC |
9750 | Check code for -mlong-calls output. */ |
9751 | ||
9752 | /* Get the reloc for the address from which the register is | |
9753 | being loaded. This reloc will tell us which function is | |
9754 | actually being called. */ | |
9755 | ||
9756 | bfd_vma laddr; | |
9757 | int seq_len; /* Original length of instruction sequence. */ | |
35c08157 | 9758 | uint32_t insn; |
1c8f6a4d | 9759 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend; |
1c8f6a4d | 9760 | bfd_signed_vma foff; |
35c08157 | 9761 | uint16_t insn16; |
35c08157 | 9762 | |
1c8f6a4d KLC |
9763 | irelend = internal_relocs + sec->reloc_count; |
9764 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
9765 | laddr = irel->r_offset; | |
9766 | *insn_len = seq_len; | |
35c08157 | 9767 | |
1c8f6a4d KLC |
9768 | hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
9769 | R_NDS32_HI20_RELA, laddr); | |
9770 | lo_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9771 | R_NDS32_LO12S0_ORI_RELA, | |
9772 | laddr + 4); | |
35c08157 | 9773 | |
1c8f6a4d | 9774 | if (hi_irelfn == irelend || lo_irelfn == irelend) |
35c08157 | 9775 | { |
695344c0 | 9776 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL1", |
2dcf00ce | 9777 | (uint64_t) irel->r_offset); |
1c8f6a4d | 9778 | return FALSE; |
35c08157 KLC |
9779 | } |
9780 | ||
1c8f6a4d | 9781 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9782 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9783 | |
1c8f6a4d | 9784 | /* This condition only happened when symbol is undefined. */ |
fbaf61ad NC |
9785 | if (foff == 0 |
9786 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
9787 | || foff >= CONSERVATIVE_24BIT_S1) |
9788 | return FALSE; | |
35c08157 | 9789 | |
fbaf61ad | 9790 | /* Relax to: jal symbol; 25_PCREL. */ |
1c8f6a4d KLC |
9791 | /* For simplicity of coding, we are going to modify the section |
9792 | contents, the section relocs, and the BFD symbol table. We | |
9793 | must tell the rest of the code not to free up this | |
9794 | information. It would be possible to instead create a table | |
9795 | of changes which have to be made, as is done in coff-mips.c; | |
9796 | that would be more work, but would require less memory when | |
9797 | the linker is run. */ | |
9798 | ||
9799 | /* Replace the long call with a jal. */ | |
9800 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
9801 | R_NDS32_25_PCREL_RELA); | |
9802 | irel->r_addend = hi_irelfn->r_addend; | |
9803 | ||
9804 | /* We don't resolve this here but resolve it in relocate_section. */ | |
9805 | insn = INSN_JAL; | |
9806 | bfd_putb32 (insn, contents + irel->r_offset); | |
9807 | ||
9808 | hi_irelfn->r_info = | |
9809 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9810 | lo_irelfn->r_info = | |
9811 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
9812 | *insn_len = 4; | |
9813 | ||
9814 | if (seq_len & 0x2) | |
9815 | { | |
9816 | insn16 = NDS32_NOP16; | |
9817 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
9818 | lo_irelfn->r_info = | |
9819 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16); | |
9820 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
9821 | *insn_len += 2; | |
9822 | } | |
9823 | return TRUE; | |
9824 | } | |
35c08157 | 9825 | |
1c8f6a4d KLC |
9826 | #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000) |
9827 | /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */ | |
35c08157 | 9828 | |
1c8f6a4d KLC |
9829 | static bfd_boolean |
9830 | nds32_elf_relax_longcall2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
9831 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9832 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9833 | Elf_Internal_Shdr *symtab_hdr) | |
9834 | { | |
9835 | /* bltz rt, .L1 ; LONGCALL2 | |
9836 | jal symbol ; 25_PCREL | |
9837 | .L1: */ | |
35c08157 | 9838 | |
1c8f6a4d KLC |
9839 | /* Get the reloc for the address from which the register is |
9840 | being loaded. This reloc will tell us which function is | |
9841 | actually being called. */ | |
35c08157 | 9842 | |
1c8f6a4d KLC |
9843 | bfd_vma laddr; |
9844 | uint32_t insn; | |
9845 | Elf_Internal_Rela *i1_irelfn, *cond_irelfn, *irelend; | |
1c8f6a4d | 9846 | bfd_signed_vma foff; |
35c08157 | 9847 | |
1c8f6a4d KLC |
9848 | irelend = internal_relocs + sec->reloc_count; |
9849 | laddr = irel->r_offset; | |
9850 | i1_irelfn = | |
9851 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9852 | R_NDS32_25_PCREL_RELA, laddr + 4); | |
9853 | ||
9854 | if (i1_irelfn == irelend) | |
35c08157 | 9855 | { |
695344c0 | 9856 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL2", |
2dcf00ce | 9857 | (uint64_t) irel->r_offset); |
1c8f6a4d | 9858 | return FALSE; |
35c08157 KLC |
9859 | } |
9860 | ||
1c8f6a4d | 9861 | insn = bfd_getb32 (contents + laddr); |
35c08157 | 9862 | |
1c8f6a4d | 9863 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9864 | foff = calculate_offset (abfd, sec, i1_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9865 | |
fbaf61ad NC |
9866 | if (foff == 0 |
9867 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d KLC |
9868 | || foff >= CONSERVATIVE_16BIT_S1) |
9869 | return FALSE; | |
35c08157 | 9870 | |
1c8f6a4d KLC |
9871 | /* Relax to bgezal rt, label ; 17_PCREL |
9872 | or bltzal rt, label ; 17_PCREL */ | |
9873 | ||
9874 | /* Convert to complimentary conditional call. */ | |
9875 | insn = CONVERT_CONDITION_CALL (insn); | |
9876 | ||
9877 | /* For simplicity of coding, we are going to modify the section | |
9878 | contents, the section relocs, and the BFD symbol table. We | |
9879 | must tell the rest of the code not to free up this | |
9880 | information. It would be possible to instead create a table | |
9881 | of changes which have to be made, as is done in coff-mips.c; | |
9882 | that would be more work, but would require less memory when | |
9883 | the linker is run. */ | |
9884 | ||
9885 | /* Clean unnessary relocations. */ | |
9886 | i1_irelfn->r_info = | |
9887 | ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), R_NDS32_NONE); | |
9888 | cond_irelfn = | |
9889 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9890 | R_NDS32_17_PCREL_RELA, laddr); | |
9891 | if (cond_irelfn != irelend) | |
9892 | cond_irelfn->r_info = | |
9893 | ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), R_NDS32_NONE); | |
9894 | ||
9895 | /* Replace the long call with a bgezal. */ | |
9896 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), | |
9897 | R_NDS32_17_PCREL_RELA); | |
9898 | irel->r_addend = i1_irelfn->r_addend; | |
9899 | ||
9900 | bfd_putb32 (insn, contents + irel->r_offset); | |
9901 | ||
9902 | *insn_len = 4; | |
9903 | return TRUE; | |
9904 | } | |
35c08157 | 9905 | |
1c8f6a4d KLC |
9906 | /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */ |
9907 | ||
9908 | static bfd_boolean | |
9909 | nds32_elf_relax_longcall3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
9910 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9911 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9912 | Elf_Internal_Shdr *symtab_hdr) | |
9913 | { | |
9914 | /* There are 3 variations for LONGCALL3 | |
9915 | case 4-4-4-2; 16-bit on, optimize off or optimize for space | |
07d6d2b8 AM |
9916 | bltz rt, $1 ; LONGCALL3 |
9917 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9918 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9919 | jral5 ta ; |
1c8f6a4d KLC |
9920 | $1 |
9921 | ||
9922 | case 4-4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 AM |
9923 | bltz rt, $1 ; LONGCALL3 |
9924 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9925 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9926 | jral ta ; |
1c8f6a4d KLC |
9927 | $1 |
9928 | ||
9929 | case 4-4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 AM |
9930 | bltz rt, $1 ; LONGCALL3 |
9931 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9932 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9933 | jral ta ; |
1c8f6a4d KLC |
9934 | $1 */ |
9935 | ||
9936 | /* Get the reloc for the address from which the register is | |
9937 | being loaded. This reloc will tell us which function is | |
9938 | actually being called. */ | |
9939 | ||
9940 | bfd_vma laddr; | |
9941 | int seq_len; /* Original length of instruction sequence. */ | |
9942 | uint32_t insn; | |
9943 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend; | |
1c8f6a4d KLC |
9944 | bfd_signed_vma foff; |
9945 | uint16_t insn16; | |
9946 | ||
9947 | irelend = internal_relocs + sec->reloc_count; | |
9948 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
9949 | laddr = irel->r_offset; | |
9950 | *insn_len = seq_len; | |
9951 | ||
9952 | hi_irelfn = | |
9953 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9954 | R_NDS32_HI20_RELA, laddr + 4); | |
9955 | lo_irelfn = | |
9956 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9957 | R_NDS32_LO12S0_ORI_RELA, laddr + 8); | |
9958 | ||
9959 | if (hi_irelfn == irelend || lo_irelfn == irelend) | |
9960 | { | |
695344c0 | 9961 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL3", |
2dcf00ce | 9962 | (uint64_t) irel->r_offset); |
1c8f6a4d | 9963 | return FALSE; |
35c08157 KLC |
9964 | } |
9965 | ||
1c8f6a4d | 9966 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9967 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9968 | |
fbaf61ad NC |
9969 | if (foff == 0 |
9970 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
9971 | || foff >= CONSERVATIVE_24BIT_S1) |
9972 | return FALSE; | |
35c08157 | 9973 | |
1c8f6a4d KLC |
9974 | insn = bfd_getb32 (contents + laddr); |
9975 | if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
35c08157 | 9976 | { |
1c8f6a4d KLC |
9977 | /* Relax to bgezal rt, label ; 17_PCREL |
9978 | or bltzal rt, label ; 17_PCREL */ | |
35c08157 | 9979 | |
1c8f6a4d KLC |
9980 | /* Convert to complimentary conditional call. */ |
9981 | insn = CONVERT_CONDITION_CALL (insn); | |
9982 | bfd_putb32 (insn, contents + irel->r_offset); | |
35c08157 | 9983 | |
1c8f6a4d KLC |
9984 | *insn_len = 4; |
9985 | irel->r_info = | |
9986 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9987 | hi_irelfn->r_info = | |
9988 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9989 | lo_irelfn->r_info = | |
9990 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
9991 | ||
9992 | cond_irelfn = | |
9993 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9994 | R_NDS32_17_PCREL_RELA, laddr); | |
9995 | if (cond_irelfn != irelend) | |
35c08157 | 9996 | { |
1c8f6a4d KLC |
9997 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
9998 | R_NDS32_17_PCREL_RELA); | |
9999 | cond_irelfn->r_addend = hi_irelfn->r_addend; | |
35c08157 | 10000 | } |
1c8f6a4d KLC |
10001 | |
10002 | if (seq_len & 0x2) | |
35c08157 | 10003 | { |
1c8f6a4d KLC |
10004 | insn16 = NDS32_NOP16; |
10005 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
10006 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
10007 | R_NDS32_INSN16); | |
10008 | hi_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10009 | insn_len += 2; | |
35c08157 | 10010 | } |
1c8f6a4d KLC |
10011 | } |
10012 | else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1) | |
10013 | { | |
10014 | /* Relax to the following instruction sequence | |
10015 | bltz rt, $1 ; LONGCALL2 | |
10016 | jal symbol ; 25_PCREL | |
10017 | $1 */ | |
10018 | *insn_len = 8; | |
10019 | insn = INSN_JAL; | |
10020 | bfd_putb32 (insn, contents + hi_irelfn->r_offset); | |
35c08157 | 10021 | |
1c8f6a4d KLC |
10022 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
10023 | R_NDS32_25_PCREL_RELA); | |
10024 | irel->r_info = | |
10025 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL2); | |
10026 | ||
10027 | lo_irelfn->r_info = | |
10028 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
35c08157 | 10029 | |
1c8f6a4d | 10030 | if (seq_len & 0x2) |
35c08157 | 10031 | { |
1c8f6a4d KLC |
10032 | insn16 = NDS32_NOP16; |
10033 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
10034 | lo_irelfn->r_info = | |
10035 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16); | |
10036 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10037 | insn_len += 2; | |
10038 | } | |
10039 | } | |
10040 | return TRUE; | |
10041 | } | |
35c08157 | 10042 | |
1c8f6a4d | 10043 | /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */ |
35c08157 | 10044 | |
1c8f6a4d KLC |
10045 | static bfd_boolean |
10046 | nds32_elf_relax_longjump1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10047 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10048 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10049 | Elf_Internal_Shdr *symtab_hdr) | |
10050 | { | |
10051 | /* There are 3 variations for LONGJUMP1 | |
10052 | case 4-4-2; 16-bit bit on, optimize off or optimize for space | |
07d6d2b8 AM |
10053 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
10054 | ori ta, ta, lo12(symbol) ; LO12S0 | |
10055 | jr5 ta ; | |
1c8f6a4d KLC |
10056 | |
10057 | case 4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 AM |
10058 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
10059 | ori ta, ta, lo12(symbol) ; LO12S0 | |
10060 | jr ta ; | |
1c8f6a4d KLC |
10061 | |
10062 | case 4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 AM |
10063 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
10064 | ori ta, ta, lo12(symbol) ; LO12S0 | |
10065 | jr ta ; */ | |
1c8f6a4d KLC |
10066 | |
10067 | /* Get the reloc for the address from which the register is | |
10068 | being loaded. This reloc will tell us which function is | |
10069 | actually being called. */ | |
10070 | ||
10071 | bfd_vma laddr; | |
10072 | int seq_len; /* Original length of instruction sequence. */ | |
10073 | int insn16_on; /* 16-bit on/off. */ | |
10074 | uint32_t insn; | |
10075 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend; | |
1c8f6a4d KLC |
10076 | bfd_signed_vma foff; |
10077 | uint16_t insn16; | |
10078 | unsigned long reloc; | |
35c08157 | 10079 | |
1c8f6a4d KLC |
10080 | irelend = internal_relocs + sec->reloc_count; |
10081 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10082 | laddr = irel->r_offset; | |
10083 | *insn_len = seq_len; | |
10084 | insn16_on = IS_16BIT_ON (irel->r_addend); | |
10085 | ||
10086 | hi_irelfn = | |
10087 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10088 | R_NDS32_HI20_RELA, laddr); | |
10089 | lo_irelfn = | |
10090 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10091 | R_NDS32_LO12S0_ORI_RELA, laddr + 4); | |
10092 | if (hi_irelfn == irelend || lo_irelfn == irelend) | |
10093 | { | |
695344c0 | 10094 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP1", |
2dcf00ce | 10095 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10096 | return FALSE; |
10097 | } | |
35c08157 | 10098 | |
1c8f6a4d | 10099 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10100 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 10101 | |
fbaf61ad NC |
10102 | if (foff == 0 |
10103 | || foff >= CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10104 | || foff < -CONSERVATIVE_24BIT_S1) |
10105 | return FALSE; | |
35c08157 | 10106 | |
fbaf61ad NC |
10107 | if (insn16_on |
10108 | && foff >= -ACCURATE_8BIT_S1 | |
10109 | && foff < ACCURATE_8BIT_S1 | |
10110 | && (seq_len & 0x2)) | |
1c8f6a4d KLC |
10111 | { |
10112 | /* j8 label */ | |
10113 | /* 16-bit on, but not optimized for speed. */ | |
10114 | reloc = R_NDS32_9_PCREL_RELA; | |
10115 | insn16 = INSN_J8; | |
10116 | bfd_putb16 (insn16, contents + irel->r_offset); | |
10117 | *insn_len = 2; | |
10118 | irel->r_info = | |
10119 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
10120 | } | |
10121 | else | |
10122 | { | |
10123 | /* j label */ | |
10124 | reloc = R_NDS32_25_PCREL_RELA; | |
10125 | insn = INSN_J; | |
10126 | bfd_putb32 (insn, contents + irel->r_offset); | |
10127 | *insn_len = 4; | |
10128 | irel->r_info = | |
10129 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_INSN16); | |
10130 | irel->r_addend = 0; | |
10131 | } | |
35c08157 | 10132 | |
1c8f6a4d KLC |
10133 | hi_irelfn->r_info = |
10134 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc); | |
10135 | lo_irelfn->r_info = | |
10136 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
35c08157 | 10137 | |
1c8f6a4d KLC |
10138 | if ((seq_len & 0x2) && ((*insn_len & 2) == 0)) |
10139 | { | |
10140 | insn16 = NDS32_NOP16; | |
10141 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
10142 | lo_irelfn->r_info = | |
10143 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
10144 | R_NDS32_INSN16); | |
10145 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10146 | *insn_len += 2; | |
10147 | } | |
10148 | return TRUE; | |
10149 | } | |
10150 | ||
10151 | /* Revert condition branch. This function does not check if the input | |
10152 | instruction is condition branch or not. */ | |
10153 | ||
10154 | static void | |
10155 | nds32_elf_convert_branch (uint16_t insn16, uint32_t insn, | |
10156 | uint16_t *re_insn16, uint32_t *re_insn) | |
10157 | { | |
10158 | uint32_t comp_insn = 0; | |
10159 | uint16_t comp_insn16 = 0; | |
10160 | ||
10161 | if (insn) | |
10162 | { | |
10163 | if (N32_OP6 (insn) == N32_OP6_BR1) | |
10164 | { | |
10165 | /* beqs label. */ | |
10166 | comp_insn = (insn ^ 0x4000) & 0xffffc000; | |
10167 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5) | |
35c08157 | 10168 | { |
1c8f6a4d KLC |
10169 | /* Insn can be contracted to 16-bit implied r5. */ |
10170 | comp_insn16 = | |
10171 | (comp_insn & 0x4000) ? INSN_BNES38 : INSN_BEQS38; | |
10172 | comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8; | |
35c08157 | 10173 | } |
1c8f6a4d KLC |
10174 | } |
10175 | else if (N32_OP6 (insn) == N32_OP6_BR3) | |
10176 | { | |
10177 | /* bnec $ta, imm11, label. */ | |
10178 | comp_insn = (insn ^ 0x80000) & 0xffffff00; | |
10179 | } | |
10180 | else | |
10181 | { | |
10182 | comp_insn = (insn ^ 0x10000) & 0xffffc000; | |
10183 | if (N32_BR2_SUB (insn) == N32_BR2_BEQZ | |
10184 | || N32_BR2_SUB (insn) == N32_BR2_BNEZ) | |
35c08157 | 10185 | { |
1c8f6a4d | 10186 | if (N32_IS_RT3 (insn)) |
35c08157 | 10187 | { |
1c8f6a4d KLC |
10188 | /* Insn can be contracted to 16-bit. */ |
10189 | comp_insn16 = | |
10190 | (comp_insn & 0x10000) ? INSN_BNEZ38 : INSN_BEQZ38; | |
10191 | comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8; | |
10192 | } | |
10193 | else if (N32_RT5 (insn) == REG_R15) | |
10194 | { | |
10195 | /* Insn can be contracted to 16-bit. */ | |
10196 | comp_insn16 = | |
10197 | (comp_insn & 0x10000) ? INSN_BNES38 : INSN_BEQS38; | |
35c08157 | 10198 | } |
35c08157 KLC |
10199 | } |
10200 | } | |
1c8f6a4d KLC |
10201 | } |
10202 | else | |
10203 | { | |
10204 | switch ((insn16 & 0xf000) >> 12) | |
35c08157 | 10205 | { |
1c8f6a4d KLC |
10206 | case 0xc: |
10207 | /* beqz38 or bnez38 */ | |
10208 | comp_insn16 = (insn16 ^ 0x0800) & 0xff00; | |
10209 | comp_insn = (comp_insn16 & 0x0800) ? INSN_BNEZ : INSN_BEQZ; | |
10210 | comp_insn |= ((comp_insn16 & 0x0700) >> 8) << 20; | |
10211 | break; | |
35c08157 | 10212 | |
1c8f6a4d KLC |
10213 | case 0xd: |
10214 | /* beqs38 or bnes38 */ | |
10215 | comp_insn16 = (insn16 ^ 0x0800) & 0xff00; | |
10216 | comp_insn = (comp_insn16 & 0x0800) ? INSN_BNE : INSN_BEQ; | |
10217 | comp_insn |= (((comp_insn16 & 0x0700) >> 8) << 20) | |
10218 | | (REG_R5 << 15); | |
10219 | break; | |
35c08157 | 10220 | |
1c8f6a4d KLC |
10221 | case 0xe: |
10222 | /* beqzS8 or bnezS8 */ | |
10223 | comp_insn16 = (insn16 ^ 0x0100) & 0xff00; | |
10224 | comp_insn = (comp_insn16 & 0x0100) ? INSN_BNEZ : INSN_BEQZ; | |
10225 | comp_insn |= REG_R15 << 20; | |
10226 | break; | |
35c08157 | 10227 | |
1c8f6a4d KLC |
10228 | default: |
10229 | break; | |
10230 | } | |
10231 | } | |
10232 | if (comp_insn && re_insn) | |
10233 | *re_insn = comp_insn; | |
10234 | if (comp_insn16 && re_insn16) | |
10235 | *re_insn16 = comp_insn16; | |
10236 | } | |
35c08157 | 10237 | |
1c8f6a4d | 10238 | /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */ |
35c08157 | 10239 | |
1c8f6a4d KLC |
10240 | static bfd_boolean |
10241 | nds32_elf_relax_longjump2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10242 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10243 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10244 | Elf_Internal_Shdr *symtab_hdr) | |
10245 | { | |
10246 | /* There are 3 variations for LONGJUMP2 | |
10247 | case 2-4; 1st insn convertible, 16-bit on, | |
10248 | optimize off or optimize for space | |
10249 | bnes38 rt, ra, $1 ; LONGJUMP2 | |
10250 | j label ; 25_PCREL | |
10251 | $1: | |
10252 | ||
10253 | case 4-4; 1st insn not convertible | |
10254 | bne rt, ra, $1 ; LONGJUMP2 | |
10255 | j label ; 25_PCREL | |
10256 | $1: | |
10257 | ||
10258 | case 4-4; 1st insn convertible, 16-bit on, optimize for speed | |
10259 | bne rt, ra, $1 ; LONGJUMP2 | |
10260 | j label ; 25_PCREL | |
10261 | $1: */ | |
10262 | ||
10263 | /* Get the reloc for the address from which the register is | |
10264 | being loaded. This reloc will tell us which function is | |
10265 | actually being called. */ | |
10266 | ||
10267 | bfd_vma laddr; | |
10268 | int seq_len; /* Original length of instruction sequence. */ | |
10269 | Elf_Internal_Rela *i2_irelfn, *cond_irelfn, *irelend; | |
fbaf61ad | 10270 | int first_size; |
1c8f6a4d KLC |
10271 | unsigned int i; |
10272 | bfd_signed_vma foff; | |
10273 | uint32_t insn, re_insn = 0; | |
10274 | uint16_t insn16, re_insn16 = 0; | |
10275 | unsigned long reloc, cond_reloc; | |
35c08157 | 10276 | |
1c8f6a4d KLC |
10277 | enum elf_nds32_reloc_type checked_types[] = |
10278 | { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA }; | |
35c08157 | 10279 | |
1c8f6a4d KLC |
10280 | irelend = internal_relocs + sec->reloc_count; |
10281 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10282 | laddr = irel->r_offset; | |
10283 | *insn_len = seq_len; | |
10284 | first_size = (seq_len == 6) ? 2 : 4; | |
10285 | ||
10286 | i2_irelfn = | |
10287 | find_relocs_at_address_addr (irel, internal_relocs, | |
10288 | irelend, R_NDS32_25_PCREL_RELA, | |
10289 | laddr + first_size); | |
10290 | ||
fbaf61ad | 10291 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
10292 | { |
10293 | cond_irelfn = | |
10294 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10295 | checked_types[i], laddr); | |
10296 | if (cond_irelfn != irelend) | |
10297 | break; | |
10298 | } | |
35c08157 | 10299 | |
1c8f6a4d KLC |
10300 | if (i2_irelfn == irelend || cond_irelfn == irelend) |
10301 | { | |
695344c0 | 10302 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP2", |
2dcf00ce | 10303 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10304 | return FALSE; |
10305 | } | |
35c08157 | 10306 | |
1c8f6a4d | 10307 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad NC |
10308 | foff = calculate_offset (abfd, sec, i2_irelfn, isymbuf, symtab_hdr); |
10309 | if (foff == 0 | |
10310 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d KLC |
10311 | || foff >= CONSERVATIVE_16BIT_S1) |
10312 | return FALSE; | |
35c08157 | 10313 | |
1c8f6a4d KLC |
10314 | /* Get the all corresponding instructions. */ |
10315 | if (first_size == 4) | |
10316 | { | |
10317 | insn = bfd_getb32 (contents + laddr); | |
10318 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
10319 | } | |
10320 | else | |
10321 | { | |
10322 | insn16 = bfd_getb16 (contents + laddr); | |
10323 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
10324 | } | |
35c08157 | 10325 | |
1c8f6a4d KLC |
10326 | if (re_insn16 && foff >= -(ACCURATE_8BIT_S1 - first_size) |
10327 | && foff < ACCURATE_8BIT_S1 - first_size) | |
10328 | { | |
10329 | if (first_size == 4) | |
10330 | { | |
10331 | /* Don't convert it to 16-bit now, keep this as relaxable for | |
10332 | ``label reloc; INSN16''. */ | |
35c08157 | 10333 | |
1c8f6a4d KLC |
10334 | /* Save comp_insn32 to buffer. */ |
10335 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10336 | *insn_len = 4; | |
10337 | reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ? | |
10338 | R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA; | |
10339 | cond_reloc = R_NDS32_INSN16; | |
10340 | } | |
10341 | else | |
10342 | { | |
10343 | bfd_putb16 (re_insn16, contents + irel->r_offset); | |
10344 | *insn_len = 2; | |
10345 | reloc = R_NDS32_9_PCREL_RELA; | |
10346 | cond_reloc = R_NDS32_NONE; | |
10347 | } | |
10348 | } | |
10349 | else if (N32_OP6 (re_insn) == N32_OP6_BR1 | |
10350 | && (foff >= -(ACCURATE_14BIT_S1 - first_size) | |
10351 | && foff < ACCURATE_14BIT_S1 - first_size)) | |
10352 | { | |
10353 | /* beqs label ; 15_PCREL */ | |
10354 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10355 | *insn_len = 4; | |
10356 | reloc = R_NDS32_15_PCREL_RELA; | |
10357 | cond_reloc = R_NDS32_NONE; | |
10358 | } | |
10359 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
10360 | && foff >= -CONSERVATIVE_16BIT_S1 | |
10361 | && foff < CONSERVATIVE_16BIT_S1) | |
10362 | { | |
10363 | /* beqz label ; 17_PCREL */ | |
10364 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10365 | *insn_len = 4; | |
10366 | reloc = R_NDS32_17_PCREL_RELA; | |
10367 | cond_reloc = R_NDS32_NONE; | |
10368 | } | |
10369 | else | |
10370 | return FALSE; | |
35c08157 | 10371 | |
1c8f6a4d KLC |
10372 | /* Set all relocations. */ |
10373 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), reloc); | |
10374 | irel->r_addend = i2_irelfn->r_addend; | |
35c08157 | 10375 | |
1c8f6a4d KLC |
10376 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), |
10377 | cond_reloc); | |
10378 | cond_irelfn->r_addend = 0; | |
35c08157 | 10379 | |
1c8f6a4d KLC |
10380 | if ((seq_len ^ *insn_len ) & 0x2) |
10381 | { | |
10382 | insn16 = NDS32_NOP16; | |
10383 | bfd_putb16 (insn16, contents + irel->r_offset + 4); | |
10384 | i2_irelfn->r_offset = 4; | |
10385 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), | |
10386 | R_NDS32_INSN16); | |
10387 | i2_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10388 | *insn_len += 2; | |
10389 | } | |
10390 | else | |
10391 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), | |
10392 | R_NDS32_NONE); | |
10393 | return TRUE; | |
10394 | } | |
35c08157 | 10395 | |
1c8f6a4d | 10396 | /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */ |
35c08157 | 10397 | |
1c8f6a4d KLC |
10398 | static bfd_boolean |
10399 | nds32_elf_relax_longjump3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10400 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10401 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10402 | Elf_Internal_Shdr *symtab_hdr) | |
10403 | { | |
10404 | /* There are 5 variations for LONGJUMP3 | |
10405 | case 1: 2-4-4-2; 1st insn convertible, 16-bit on, | |
10406 | optimize off or optimize for space | |
07d6d2b8 AM |
10407 | bnes38 rt, ra, $1 ; LONGJUMP3 |
10408 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10409 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10410 | jr5 ta ; |
10411 | $1: ; | |
1c8f6a4d KLC |
10412 | |
10413 | case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed | |
07d6d2b8 AM |
10414 | bnes38 rt, ra, $1 ; LONGJUMP3 |
10415 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10416 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10417 | jr5 ta ; |
10418 | $1: ; LABEL | |
1c8f6a4d KLC |
10419 | |
10420 | case 3: 4-4-4-2; 1st insn not convertible, 16-bit on, | |
10421 | optimize off or optimize for space | |
07d6d2b8 AM |
10422 | bne rt, ra, $1 ; LONGJUMP3 |
10423 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10424 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10425 | jr5 ta ; |
10426 | $1: ; | |
1c8f6a4d KLC |
10427 | |
10428 | case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care | |
10429 | 16-bit off if no INSN16 | |
07d6d2b8 AM |
10430 | bne rt, ra, $1 ; LONGJUMP3 |
10431 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10432 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10433 | jr ta ; |
10434 | $1: ; | |
1c8f6a4d KLC |
10435 | |
10436 | case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed | |
10437 | 16-bit off if no INSN16 | |
07d6d2b8 AM |
10438 | bne rt, ra, $1 ; LONGJUMP3 |
10439 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10440 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10441 | jr ta ; |
10442 | $1: ; LABEL */ | |
1c8f6a4d KLC |
10443 | |
10444 | /* Get the reloc for the address from which the register is | |
10445 | being loaded. This reloc will tell us which function is | |
10446 | actually being called. */ | |
10447 | enum elf_nds32_reloc_type checked_types[] = | |
10448 | { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA }; | |
10449 | ||
10450 | int reloc_off = 0, cond_removed = 0, convertible; | |
10451 | bfd_vma laddr; | |
10452 | int seq_len; /* Original length of instruction sequence. */ | |
10453 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend; | |
fbaf61ad | 10454 | int first_size; |
1c8f6a4d KLC |
10455 | unsigned int i; |
10456 | bfd_signed_vma foff; | |
10457 | uint32_t insn, re_insn = 0; | |
10458 | uint16_t insn16, re_insn16 = 0; | |
10459 | unsigned long reloc, cond_reloc; | |
35c08157 | 10460 | |
1c8f6a4d KLC |
10461 | irelend = internal_relocs + sec->reloc_count; |
10462 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10463 | laddr = irel->r_offset; | |
10464 | *insn_len = seq_len; | |
35c08157 | 10465 | |
1c8f6a4d | 10466 | convertible = IS_1ST_CONVERT (irel->r_addend); |
35c08157 | 10467 | |
1c8f6a4d KLC |
10468 | if (convertible) |
10469 | first_size = 2; | |
10470 | else | |
10471 | first_size = 4; | |
10472 | ||
10473 | /* Get all needed relocations. */ | |
10474 | hi_irelfn = | |
10475 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10476 | R_NDS32_HI20_RELA, laddr + first_size); | |
10477 | lo_irelfn = | |
10478 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10479 | R_NDS32_LO12S0_ORI_RELA, | |
10480 | laddr + first_size + 4); | |
10481 | ||
fbaf61ad | 10482 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
10483 | { |
10484 | cond_irelfn = | |
10485 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10486 | checked_types[i], laddr); | |
10487 | if (cond_irelfn != irelend) | |
10488 | break; | |
10489 | } | |
35c08157 | 10490 | |
fbaf61ad NC |
10491 | if (hi_irelfn == irelend |
10492 | || lo_irelfn == irelend | |
10493 | || cond_irelfn == irelend) | |
1c8f6a4d | 10494 | { |
695344c0 | 10495 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP3", |
2dcf00ce | 10496 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10497 | return FALSE; |
10498 | } | |
35c08157 | 10499 | |
1c8f6a4d | 10500 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10501 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 10502 | |
fbaf61ad NC |
10503 | if (foff == 0 |
10504 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10505 | || foff >= CONSERVATIVE_24BIT_S1) |
10506 | return FALSE; | |
35c08157 | 10507 | |
1c8f6a4d KLC |
10508 | /* Get the all corresponding instructions. */ |
10509 | if (first_size == 4) | |
10510 | { | |
10511 | insn = bfd_getb32 (contents + laddr); | |
10512 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
10513 | } | |
10514 | else | |
10515 | { | |
10516 | insn16 = bfd_getb16 (contents + laddr); | |
10517 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
10518 | } | |
35c08157 | 10519 | |
1c8f6a4d KLC |
10520 | /* For simplicity of coding, we are going to modify the section |
10521 | contents, the section relocs, and the BFD symbol table. We | |
10522 | must tell the rest of the code not to free up this | |
10523 | information. It would be possible to instead create a table | |
10524 | of changes which have to be made, as is done in coff-mips.c; | |
10525 | that would be more work, but would require less memory when | |
10526 | the linker is run. */ | |
35c08157 | 10527 | |
fbaf61ad NC |
10528 | if (re_insn16 |
10529 | && foff >= -ACCURATE_8BIT_S1 - first_size | |
1c8f6a4d KLC |
10530 | && foff < ACCURATE_8BIT_S1 - first_size) |
10531 | { | |
10532 | if (!(seq_len & 0x2)) | |
10533 | { | |
10534 | /* Don't convert it to 16-bit now, keep this as relaxable | |
10535 | for ``label reloc; INSN1a''6. */ | |
10536 | /* Save comp_insn32 to buffer. */ | |
10537 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10538 | *insn_len = 4; | |
10539 | reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ? | |
10540 | R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA; | |
10541 | cond_reloc = R_NDS32_INSN16; | |
10542 | } | |
10543 | else | |
10544 | { | |
10545 | /* Not optimize for speed; convert sequence to 16-bit. */ | |
10546 | /* Save comp_insn16 to buffer. */ | |
10547 | bfd_putb16 (re_insn16, contents + irel->r_offset); | |
10548 | *insn_len = 2; | |
10549 | reloc = R_NDS32_9_PCREL_RELA; | |
10550 | cond_reloc = R_NDS32_NONE; | |
10551 | } | |
10552 | cond_removed = 1; | |
10553 | } | |
10554 | else if (N32_OP6 (re_insn) == N32_OP6_BR1 | |
10555 | && (foff >= -(ACCURATE_14BIT_S1 - first_size) | |
10556 | && foff < ACCURATE_14BIT_S1 - first_size)) | |
10557 | { | |
10558 | /* beqs label ; 15_PCREL */ | |
10559 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10560 | *insn_len = 4; | |
10561 | reloc = R_NDS32_15_PCREL_RELA; | |
10562 | cond_reloc = R_NDS32_NONE; | |
10563 | cond_removed = 1; | |
10564 | } | |
10565 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
10566 | && foff >= -CONSERVATIVE_16BIT_S1 | |
10567 | && foff < CONSERVATIVE_16BIT_S1) | |
10568 | { | |
10569 | /* beqz label ; 17_PCREL */ | |
10570 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10571 | *insn_len = 4; | |
10572 | reloc = R_NDS32_17_PCREL_RELA; | |
10573 | cond_reloc = R_NDS32_NONE; | |
10574 | cond_removed = 1; | |
10575 | } | |
10576 | else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off | |
10577 | && foff < CONSERVATIVE_24BIT_S1 - reloc_off) | |
10578 | { | |
10579 | /* Relax to one of the following 3 variations | |
10580 | ||
10581 | case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize | |
10582 | for space | |
10583 | bnes38 rt, $1 ; LONGJUMP2 | |
10584 | j label ; 25_PCREL | |
10585 | $1 | |
10586 | ||
10587 | case 4-4; 1st insn not convertible, others don't care | |
10588 | bne rt, ra, $1 ; LONGJUMP2 | |
10589 | j label ; 25_PCREL | |
10590 | $1 | |
10591 | ||
10592 | case 4-4; 1st insn convertible, 16-bit on, optimize for speed | |
10593 | bne rt, ra, $1 ; LONGJUMP2 | |
10594 | j label ; 25_PCREL | |
10595 | $1 */ | |
10596 | ||
10597 | /* Offset for first instruction. */ | |
10598 | ||
10599 | /* Use j label as second instruction. */ | |
10600 | *insn_len = 4 + first_size; | |
10601 | insn = INSN_J; | |
10602 | bfd_putb32 (insn, contents + hi_irelfn->r_offset); | |
10603 | reloc = R_NDS32_LONGJUMP2; | |
10604 | cond_reloc = R_NDS32_25_PLTREL; | |
10605 | } | |
10606 | else | |
10607 | return FALSE; | |
35c08157 | 10608 | |
1c8f6a4d KLC |
10609 | if (cond_removed == 1) |
10610 | { | |
10611 | /* Set all relocations. */ | |
10612 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc); | |
10613 | irel->r_addend = hi_irelfn->r_addend; | |
10614 | ||
10615 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), | |
10616 | cond_reloc); | |
10617 | cond_irelfn->r_addend = 0; | |
10618 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
10619 | R_NDS32_NONE); | |
10620 | } | |
10621 | else | |
10622 | { | |
10623 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
fbaf61ad | 10624 | irel->r_addend = irel->r_addend; |
1c8f6a4d KLC |
10625 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
10626 | cond_reloc); | |
10627 | } | |
35c08157 | 10628 | |
1c8f6a4d KLC |
10629 | if ((seq_len ^ *insn_len ) & 0x2) |
10630 | { | |
10631 | insn16 = NDS32_NOP16; | |
10632 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
10633 | lo_irelfn->r_offset = *insn_len; | |
10634 | lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
10635 | R_NDS32_INSN16); | |
10636 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10637 | *insn_len += 2; | |
10638 | } | |
10639 | else | |
10640 | lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
10641 | R_NDS32_NONE); | |
10642 | return TRUE; | |
10643 | } | |
35c08157 | 10644 | |
1c8f6a4d | 10645 | /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */ |
35c08157 | 10646 | |
1c8f6a4d KLC |
10647 | static bfd_boolean |
10648 | nds32_elf_relax_longcall4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10649 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10650 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10651 | Elf_Internal_Shdr *symtab_hdr) | |
10652 | { | |
10653 | /* The pattern for LONGCALL4. Support for function cse. | |
10654 | sethi ta, hi20(symbol) ; LONGCALL4/HI20 | |
10655 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10656 | jral ta ; PTR_RES/EMPTY/INSN16 */ | |
35c08157 | 10657 | |
1c8f6a4d KLC |
10658 | bfd_vma laddr; |
10659 | uint32_t insn; | |
10660 | Elf_Internal_Rela *hi_irel, *ptr_irel, *insn_irel, *em_irel, *call_irel; | |
10661 | Elf_Internal_Rela *irelend; | |
1c8f6a4d | 10662 | bfd_signed_vma foff; |
35c08157 | 10663 | |
1c8f6a4d KLC |
10664 | irelend = internal_relocs + sec->reloc_count; |
10665 | laddr = irel->r_offset; | |
35c08157 | 10666 | |
1c8f6a4d KLC |
10667 | /* Get the reloc for the address from which the register is |
10668 | being loaded. This reloc will tell us which function is | |
10669 | actually being called. */ | |
10670 | hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10671 | R_NDS32_HI20_RELA, laddr); | |
35c08157 | 10672 | |
1c8f6a4d KLC |
10673 | if (hi_irel == irelend) |
10674 | { | |
695344c0 | 10675 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL4", |
2dcf00ce | 10676 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10677 | return FALSE; |
10678 | } | |
35c08157 | 10679 | |
1c8f6a4d | 10680 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10681 | foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr); |
35c08157 | 10682 | |
1c8f6a4d | 10683 | /* This condition only happened when symbol is undefined. */ |
fbaf61ad NC |
10684 | if (foff == 0 |
10685 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10686 | || foff >= CONSERVATIVE_24BIT_S1) |
10687 | return FALSE; | |
35c08157 | 10688 | |
fbaf61ad | 10689 | /* Relax to: jal symbol; 25_PCREL. */ |
1c8f6a4d KLC |
10690 | /* For simplicity of coding, we are going to modify the section |
10691 | contents, the section relocs, and the BFD symbol table. We | |
10692 | must tell the rest of the code not to free up this | |
10693 | information. It would be possible to instead create a table | |
10694 | of changes which have to be made, as is done in coff-mips.c; | |
10695 | that would be more work, but would require less memory when | |
10696 | the linker is run. */ | |
35c08157 | 10697 | |
1c8f6a4d KLC |
10698 | ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10699 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10700 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10701 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 10702 | |
1c8f6a4d KLC |
10703 | if (ptr_irel == irelend || em_irel == irelend) |
10704 | { | |
695344c0 | 10705 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL4", |
2dcf00ce | 10706 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10707 | return FALSE; |
10708 | } | |
10709 | /* Check these is enough space to insert jal in R_NDS32_EMPTY. */ | |
10710 | insn = bfd_getb32 (contents + irel->r_addend); | |
10711 | if (insn & 0x80000000) | |
10712 | return FALSE; | |
35c08157 | 10713 | |
1c8f6a4d KLC |
10714 | /* Replace the long call with a jal. */ |
10715 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), | |
10716 | R_NDS32_25_PCREL_RELA); | |
10717 | ptr_irel->r_addend = 1; | |
35c08157 | 10718 | |
1c8f6a4d KLC |
10719 | /* We don't resolve this here but resolve it in relocate_section. */ |
10720 | insn = INSN_JAL; | |
10721 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 10722 | |
1c8f6a4d KLC |
10723 | irel->r_info = |
10724 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10725 | |
1c8f6a4d KLC |
10726 | /* If there is function cse, HI20 can not remove now. */ |
10727 | call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10728 | R_NDS32_LONGCALL4, laddr); | |
10729 | if (call_irel == irelend) | |
10730 | { | |
10731 | *insn_len = 0; | |
10732 | hi_irel->r_info = | |
10733 | ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE); | |
10734 | } | |
35c08157 | 10735 | |
1c8f6a4d KLC |
10736 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10737 | R_NDS32_INSN16, irel->r_addend); | |
10738 | if (insn_irel != irelend) | |
10739 | insn_irel->r_info = | |
10740 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10741 | |
1c8f6a4d KLC |
10742 | return TRUE; |
10743 | } | |
35c08157 | 10744 | |
1c8f6a4d | 10745 | /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */ |
35c08157 | 10746 | |
1c8f6a4d KLC |
10747 | static bfd_boolean |
10748 | nds32_elf_relax_longcall5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10749 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10750 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10751 | Elf_Internal_Shdr *symtab_hdr) | |
10752 | { | |
10753 | /* The pattern for LONGCALL5. | |
10754 | bltz rt, .L1 ; LONGCALL5/17_PCREL | |
10755 | jal symbol ; 25_PCREL | |
10756 | .L1: */ | |
35c08157 | 10757 | |
1c8f6a4d KLC |
10758 | bfd_vma laddr; |
10759 | uint32_t insn; | |
10760 | Elf_Internal_Rela *cond_irel, *irelend; | |
1c8f6a4d | 10761 | bfd_signed_vma foff; |
35c08157 | 10762 | |
1c8f6a4d KLC |
10763 | irelend = internal_relocs + sec->reloc_count; |
10764 | laddr = irel->r_offset; | |
10765 | insn = bfd_getb32 (contents + laddr); | |
35c08157 | 10766 | |
1c8f6a4d KLC |
10767 | /* Get the reloc for the address from which the register is |
10768 | being loaded. This reloc will tell us which function is | |
10769 | actually being called. */ | |
10770 | cond_irel = | |
10771 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10772 | R_NDS32_25_PCREL_RELA, irel->r_addend); | |
10773 | if (cond_irel == irelend) | |
10774 | { | |
695344c0 | 10775 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL5", |
2dcf00ce | 10776 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10777 | return FALSE; |
10778 | } | |
35c08157 | 10779 | |
1c8f6a4d | 10780 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10781 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 10782 | |
fbaf61ad NC |
10783 | if (foff == 0 |
10784 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d KLC |
10785 | || foff >= CONSERVATIVE_16BIT_S1) |
10786 | return FALSE; | |
35c08157 | 10787 | |
1c8f6a4d | 10788 | /* Relax to bgezal rt, label ; 17_PCREL |
fbaf61ad | 10789 | or bltzal rt, label ; 17_PCREL. */ |
35c08157 | 10790 | |
1c8f6a4d KLC |
10791 | /* Convert to complimentary conditional call. */ |
10792 | insn = CONVERT_CONDITION_CALL (insn); | |
35c08157 | 10793 | |
1c8f6a4d KLC |
10794 | /* For simplicity of coding, we are going to modify the section |
10795 | contents, the section relocs, and the BFD symbol table. We | |
10796 | must tell the rest of the code not to free up this | |
10797 | information. It would be possible to instead create a table | |
10798 | of changes which have to be made, as is done in coff-mips.c; | |
10799 | that would be more work, but would require less memory when | |
10800 | the linker is run. */ | |
35c08157 | 10801 | |
1c8f6a4d KLC |
10802 | /* Modify relocation and contents. */ |
10803 | cond_irel->r_info = | |
10804 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_17_PCREL_RELA); | |
35c08157 | 10805 | |
1c8f6a4d KLC |
10806 | /* Replace the long call with a bgezal. */ |
10807 | bfd_putb32 (insn, contents + cond_irel->r_offset); | |
10808 | *insn_len = 0; | |
35c08157 | 10809 | |
1c8f6a4d KLC |
10810 | /* Clean unnessary relocations. */ |
10811 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10812 | |
1c8f6a4d KLC |
10813 | cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10814 | R_NDS32_17_PCREL_RELA, laddr); | |
10815 | cond_irel->r_info = | |
10816 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10817 | |
1c8f6a4d KLC |
10818 | return TRUE; |
10819 | } | |
35c08157 | 10820 | |
1c8f6a4d | 10821 | /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */ |
35c08157 | 10822 | |
1c8f6a4d KLC |
10823 | static bfd_boolean |
10824 | nds32_elf_relax_longcall6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10825 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10826 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10827 | Elf_Internal_Shdr *symtab_hdr) | |
10828 | { | |
10829 | /* The pattern for LONGCALL6. | |
10830 | bltz rt, .L1 ; LONGCALL6/17_PCREL | |
10831 | sethi ta, hi20(symbol) ; HI20/PTR | |
10832 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10833 | jral ta ; PTR_RES/EMPTY/INSN16 | |
10834 | .L1 */ | |
10835 | ||
10836 | bfd_vma laddr; | |
10837 | uint32_t insn; | |
10838 | Elf_Internal_Rela *em_irel, *cond_irel, *irelend; | |
1c8f6a4d | 10839 | bfd_signed_vma foff; |
35c08157 | 10840 | |
1c8f6a4d KLC |
10841 | irelend = internal_relocs + sec->reloc_count; |
10842 | laddr = irel->r_offset; | |
35c08157 | 10843 | |
1c8f6a4d KLC |
10844 | /* Get the reloc for the address from which the register is |
10845 | being loaded. This reloc will tell us which function is | |
10846 | actually being called. */ | |
10847 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10848 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 10849 | |
1c8f6a4d KLC |
10850 | if (em_irel == irelend) |
10851 | { | |
695344c0 | 10852 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL6", |
2dcf00ce | 10853 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10854 | return FALSE; |
10855 | } | |
35c08157 | 10856 | |
1c8f6a4d | 10857 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10858 | foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr); |
35c08157 | 10859 | |
fbaf61ad NC |
10860 | if (foff == 0 |
10861 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10862 | || foff >= CONSERVATIVE_24BIT_S1) |
10863 | return FALSE; | |
35c08157 | 10864 | |
1c8f6a4d KLC |
10865 | /* Check these is enough space to insert jal in R_NDS32_EMPTY. */ |
10866 | insn = bfd_getb32 (contents + irel->r_addend); | |
10867 | if (insn & 0x80000000) | |
10868 | return FALSE; | |
35c08157 | 10869 | |
1c8f6a4d KLC |
10870 | insn = bfd_getb32 (contents + laddr); |
10871 | if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
10872 | { | |
10873 | /* Relax to bgezal rt, label ; 17_PCREL | |
fbaf61ad | 10874 | or bltzal rt, label ; 17_PCREL. */ |
35c08157 | 10875 | |
1c8f6a4d KLC |
10876 | /* Convert to complimentary conditional call. */ |
10877 | *insn_len = 0; | |
10878 | insn = CONVERT_CONDITION_CALL (insn); | |
10879 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
10880 | ||
10881 | em_irel->r_info = | |
10882 | ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_17_PCREL_RELA); | |
10883 | ||
10884 | /* Set resolved relocation. */ | |
10885 | cond_irel = | |
10886 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10887 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10888 | if (cond_irel == irelend) | |
35c08157 | 10889 | { |
695344c0 | 10890 | _bfd_error_handler (unrecognized_reloc_msg, abfd, |
2dcf00ce | 10891 | "R_NDS32_LONGCALL6", (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10892 | return FALSE; |
10893 | } | |
10894 | cond_irel->r_addend = 1; | |
35c08157 | 10895 | |
1c8f6a4d | 10896 | /* Clear relocations. */ |
35c08157 | 10897 | |
1c8f6a4d KLC |
10898 | irel->r_info = |
10899 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10900 | |
1c8f6a4d KLC |
10901 | cond_irel = |
10902 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10903 | R_NDS32_17_PCREL_RELA, laddr); | |
10904 | if (cond_irel != irelend) | |
10905 | cond_irel->r_info = | |
10906 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10907 | |
1c8f6a4d KLC |
10908 | cond_irel = |
10909 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10910 | R_NDS32_INSN16, irel->r_addend); | |
10911 | if (cond_irel != irelend) | |
10912 | cond_irel->r_info = | |
10913 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10914 | |
1c8f6a4d KLC |
10915 | } |
10916 | else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1) | |
10917 | { | |
10918 | /* Relax to the following instruction sequence | |
10919 | bltz rt, .L1 ; LONGCALL2/17_PCREL | |
10920 | jal symbol ; 25_PCREL/PTR_RES | |
10921 | .L1 */ | |
10922 | *insn_len = 4; | |
10923 | /* Convert instruction. */ | |
10924 | insn = INSN_JAL; | |
10925 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 10926 | |
1c8f6a4d KLC |
10927 | /* Convert relocations. */ |
10928 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), | |
10929 | R_NDS32_25_PCREL_RELA); | |
10930 | irel->r_info = | |
10931 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL5); | |
35c08157 | 10932 | |
1c8f6a4d KLC |
10933 | /* Set resolved relocation. */ |
10934 | cond_irel = | |
10935 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10936 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10937 | if (cond_irel == irelend) | |
10938 | { | |
695344c0 | 10939 | _bfd_error_handler (unrecognized_reloc_msg, abfd, |
2dcf00ce | 10940 | "R_NDS32_LONGCALL6", (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10941 | return FALSE; |
10942 | } | |
10943 | cond_irel->r_addend = 1; | |
35c08157 | 10944 | |
1c8f6a4d KLC |
10945 | cond_irel = |
10946 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10947 | R_NDS32_INSN16, irel->r_addend); | |
10948 | if (cond_irel != irelend) | |
10949 | cond_irel->r_info = | |
10950 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
10951 | } | |
10952 | return TRUE; | |
10953 | } | |
35c08157 | 10954 | |
1c8f6a4d | 10955 | /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */ |
35c08157 | 10956 | |
1c8f6a4d KLC |
10957 | static bfd_boolean |
10958 | nds32_elf_relax_longjump4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10959 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10960 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10961 | Elf_Internal_Shdr *symtab_hdr) | |
10962 | { | |
10963 | /* The pattern for LONGJUMP4. | |
10964 | sethi ta, hi20(symbol) ; LONGJUMP4/HI20 | |
10965 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10966 | jr ta ; PTR_RES/INSN16/EMPTY */ | |
10967 | ||
10968 | bfd_vma laddr; | |
10969 | int seq_len; /* Original length of instruction sequence. */ | |
10970 | uint32_t insn; | |
10971 | Elf_Internal_Rela *hi_irel, *ptr_irel, *em_irel, *call_irel, *irelend; | |
1c8f6a4d | 10972 | bfd_signed_vma foff; |
35c08157 | 10973 | |
1c8f6a4d KLC |
10974 | irelend = internal_relocs + sec->reloc_count; |
10975 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10976 | laddr = irel->r_offset; | |
10977 | *insn_len = seq_len; | |
35c08157 | 10978 | |
1c8f6a4d KLC |
10979 | /* Get the reloc for the address from which the register is |
10980 | being loaded. This reloc will tell us which function is | |
10981 | actually being called. */ | |
35c08157 | 10982 | |
1c8f6a4d KLC |
10983 | hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10984 | R_NDS32_HI20_RELA, laddr); | |
35c08157 | 10985 | |
1c8f6a4d KLC |
10986 | if (hi_irel == irelend) |
10987 | { | |
695344c0 | 10988 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP4", |
2dcf00ce | 10989 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10990 | return FALSE; |
10991 | } | |
35c08157 | 10992 | |
1c8f6a4d | 10993 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10994 | foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr); |
35c08157 | 10995 | |
fbaf61ad NC |
10996 | if (foff == 0 |
10997 | || foff >= CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10998 | || foff < -CONSERVATIVE_24BIT_S1) |
10999 | return FALSE; | |
35c08157 | 11000 | |
1c8f6a4d KLC |
11001 | /* Convert it to "j label", it may be converted to j8 in the final |
11002 | pass of relaxation. Therefore, we do not consider this currently. */ | |
11003 | ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11004 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
11005 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11006 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 11007 | |
1c8f6a4d KLC |
11008 | if (ptr_irel == irelend || em_irel == irelend) |
11009 | { | |
695344c0 | 11010 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP4", |
2dcf00ce | 11011 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
11012 | return FALSE; |
11013 | } | |
35c08157 | 11014 | |
1c8f6a4d KLC |
11015 | em_irel->r_info = |
11016 | ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_25_PCREL_RELA); | |
11017 | ptr_irel->r_addend = 1; | |
35c08157 | 11018 | |
1c8f6a4d KLC |
11019 | /* Write instruction. */ |
11020 | insn = INSN_J; | |
11021 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 11022 | |
1c8f6a4d KLC |
11023 | /* Clear relocations. */ |
11024 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 11025 | |
1c8f6a4d KLC |
11026 | /* If there is function cse, HI20 can not remove now. */ |
11027 | call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11028 | R_NDS32_LONGJUMP4, laddr); | |
11029 | if (call_irel == irelend) | |
11030 | { | |
11031 | *insn_len = 0; | |
11032 | hi_irel->r_info = | |
11033 | ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE); | |
11034 | } | |
35c08157 | 11035 | |
1c8f6a4d KLC |
11036 | return TRUE; |
11037 | } | |
35c08157 | 11038 | |
1c8f6a4d | 11039 | /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */ |
35c08157 | 11040 | |
1c8f6a4d KLC |
11041 | static bfd_boolean |
11042 | nds32_elf_relax_longjump5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
11043 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11044 | int *seq_len, bfd_byte *contents, | |
11045 | Elf_Internal_Sym *isymbuf, | |
11046 | Elf_Internal_Shdr *symtab_hdr) | |
11047 | { | |
11048 | /* There are 2 variations for LONGJUMP5 | |
11049 | case 2-4; 1st insn convertible, 16-bit on. | |
11050 | bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16 | |
11051 | j label ; 25_PCREL/INSN16 | |
11052 | $1: | |
11053 | ||
11054 | case 4-4; 1st insn not convertible | |
11055 | bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16 | |
11056 | j label ; 25_PCREL/INSN16 | |
11057 | .L1: */ | |
11058 | ||
11059 | bfd_vma laddr; | |
11060 | Elf_Internal_Rela *cond_irel, *irelend; | |
1c8f6a4d KLC |
11061 | unsigned int i; |
11062 | bfd_signed_vma foff; | |
11063 | uint32_t insn, re_insn = 0; | |
11064 | uint16_t insn16, re_insn16 = 0; | |
11065 | unsigned long reloc; | |
35c08157 | 11066 | |
1c8f6a4d KLC |
11067 | enum elf_nds32_reloc_type checked_types[] = |
11068 | { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA, | |
11069 | R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 }; | |
35c08157 | 11070 | |
1c8f6a4d KLC |
11071 | irelend = internal_relocs + sec->reloc_count; |
11072 | laddr = irel->r_offset; | |
35c08157 | 11073 | |
1c8f6a4d KLC |
11074 | /* Get the reloc for the address from which the register is |
11075 | being loaded. This reloc will tell us which function is | |
11076 | actually being called. */ | |
35c08157 | 11077 | |
1c8f6a4d KLC |
11078 | cond_irel = |
11079 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11080 | R_NDS32_25_PCREL_RELA, irel->r_addend); | |
11081 | if (cond_irel == irelend) | |
11082 | { | |
695344c0 | 11083 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP5", |
2dcf00ce | 11084 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
11085 | return FALSE; |
11086 | } | |
35c08157 | 11087 | |
1c8f6a4d | 11088 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 11089 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 11090 | |
fbaf61ad NC |
11091 | if (foff == 0 |
11092 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d KLC |
11093 | || foff >= CONSERVATIVE_16BIT_S1) |
11094 | return FALSE; | |
35c08157 | 11095 | |
1c8f6a4d KLC |
11096 | /* Get the all corresponding instructions. */ |
11097 | insn = bfd_getb32 (contents + laddr); | |
11098 | /* Check instruction size. */ | |
11099 | if (insn & 0x80000000) | |
11100 | { | |
11101 | *seq_len = 0; | |
11102 | insn16 = insn >> 16; | |
11103 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
11104 | } | |
11105 | else | |
11106 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
35c08157 | 11107 | |
1c8f6a4d KLC |
11108 | if (N32_OP6 (re_insn) == N32_OP6_BR1 |
11109 | && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1)) | |
11110 | { | |
11111 | /* beqs label ; 15_PCREL. */ | |
11112 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
11113 | reloc = R_NDS32_15_PCREL_RELA; | |
11114 | } | |
11115 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
11116 | && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
11117 | { | |
11118 | /* beqz label ; 17_PCREL. */ | |
11119 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
11120 | reloc = R_NDS32_17_PCREL_RELA; | |
11121 | } | |
11122 | else if ( N32_OP6 (re_insn) == N32_OP6_BR3 | |
11123 | && foff >= -CONSERVATIVE_8BIT_S1 && foff < CONSERVATIVE_8BIT_S1) | |
11124 | { | |
11125 | /* beqc label ; 9_PCREL. */ | |
11126 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
11127 | reloc = R_NDS32_WORD_9_PCREL_RELA; | |
11128 | } | |
11129 | else | |
11130 | return FALSE; | |
35c08157 | 11131 | |
1c8f6a4d KLC |
11132 | /* Set all relocations. */ |
11133 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), reloc); | |
35c08157 | 11134 | |
1c8f6a4d KLC |
11135 | /* Clean relocations. */ |
11136 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
fbaf61ad | 11137 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
11138 | { |
11139 | cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11140 | checked_types[i], laddr); | |
11141 | if (cond_irel != irelend) | |
11142 | { | |
11143 | if (*seq_len == 0 | |
11144 | && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16)) | |
35c08157 | 11145 | { |
1c8f6a4d KLC |
11146 | /* If the branch instruction is 2 byte, it cannot remove |
11147 | directly. Only convert it to nop16 and remove it after | |
11148 | checking alignment issue. */ | |
11149 | insn16 = NDS32_NOP16; | |
11150 | bfd_putb16 (insn16, contents + laddr); | |
11151 | cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
35c08157 KLC |
11152 | } |
11153 | else | |
1c8f6a4d KLC |
11154 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), |
11155 | R_NDS32_NONE); | |
35c08157 | 11156 | } |
1c8f6a4d KLC |
11157 | } |
11158 | *insn_len = 0; | |
35c08157 | 11159 | |
1c8f6a4d KLC |
11160 | return TRUE; |
11161 | } | |
35c08157 | 11162 | |
1c8f6a4d | 11163 | /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */ |
35c08157 | 11164 | |
1c8f6a4d KLC |
11165 | static bfd_boolean |
11166 | nds32_elf_relax_longjump6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
11167 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11168 | int *seq_len, bfd_byte *contents, | |
11169 | Elf_Internal_Sym *isymbuf, | |
11170 | Elf_Internal_Shdr *symtab_hdr) | |
11171 | { | |
11172 | /* There are 5 variations for LONGJUMP6 | |
11173 | case : 2-4-4-4; 1st insn convertible, 16-bit on. | |
11174 | bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16 | |
11175 | sethi ta, hi20(symbol) ; HI20/PTR | |
11176 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
11177 | jr ta ; PTR_RES/INSN16/EMPTY | |
11178 | .L1: | |
11179 | ||
11180 | case : 4-4-4-4; 1st insn not convertible, 16-bit on. | |
11181 | bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16 | |
11182 | sethi ta, hi20(symbol) ; HI20/PTR | |
11183 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
11184 | jr ta ; PTR_RES/INSN16/EMPTY | |
11185 | .L1: */ | |
11186 | ||
11187 | enum elf_nds32_reloc_type checked_types[] = | |
11188 | { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA, | |
11189 | R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 }; | |
11190 | ||
11191 | int reloc_off = 0, cond_removed = 0; | |
11192 | bfd_vma laddr; | |
11193 | Elf_Internal_Rela *cond_irel, *em_irel, *irelend, *insn_irel; | |
1c8f6a4d KLC |
11194 | unsigned int i; |
11195 | bfd_signed_vma foff; | |
11196 | uint32_t insn, re_insn = 0; | |
11197 | uint16_t insn16, re_insn16 = 0; | |
11198 | unsigned long reloc; | |
35c08157 | 11199 | |
1c8f6a4d KLC |
11200 | irelend = internal_relocs + sec->reloc_count; |
11201 | laddr = irel->r_offset; | |
35c08157 | 11202 | |
1c8f6a4d KLC |
11203 | /* Get the reloc for the address from which the register is |
11204 | being loaded. This reloc will tell us which function is | |
11205 | actually being called. */ | |
11206 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11207 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 11208 | |
1c8f6a4d KLC |
11209 | if (em_irel == irelend) |
11210 | { | |
695344c0 | 11211 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP6", |
2dcf00ce | 11212 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
11213 | return FALSE; |
11214 | } | |
35c08157 | 11215 | |
1c8f6a4d | 11216 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 11217 | foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr); |
35c08157 | 11218 | |
fbaf61ad NC |
11219 | if (foff == 0 |
11220 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
11221 | || foff >= CONSERVATIVE_24BIT_S1) |
11222 | return FALSE; | |
35c08157 | 11223 | |
1c8f6a4d KLC |
11224 | insn = bfd_getb32 (contents + laddr); |
11225 | /* Check instruction size. */ | |
11226 | if (insn & 0x80000000) | |
11227 | { | |
11228 | *seq_len = 0; | |
11229 | insn16 = insn >> 16; | |
11230 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
11231 | } | |
11232 | else | |
11233 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
35c08157 | 11234 | |
1c8f6a4d KLC |
11235 | /* For simplicity of coding, we are going to modify the section |
11236 | contents, the section relocs, and the BFD symbol table. We | |
11237 | must tell the rest of the code not to free up this | |
11238 | information. It would be possible to instead create a table | |
11239 | of changes which have to be made, as is done in coff-mips.c; | |
11240 | that would be more work, but would require less memory when | |
11241 | the linker is run. */ | |
35c08157 | 11242 | |
1c8f6a4d KLC |
11243 | if (N32_OP6 (re_insn) == N32_OP6_BR1 |
11244 | && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1)) | |
11245 | { | |
fbaf61ad | 11246 | /* beqs label ; 15_PCREL. */ |
1c8f6a4d KLC |
11247 | bfd_putb32 (re_insn, contents + em_irel->r_offset); |
11248 | reloc = R_NDS32_15_PCREL_RELA; | |
11249 | cond_removed = 1; | |
11250 | } | |
11251 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
11252 | && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
11253 | { | |
fbaf61ad | 11254 | /* beqz label ; 17_PCREL. */ |
1c8f6a4d KLC |
11255 | bfd_putb32 (re_insn, contents + em_irel->r_offset); |
11256 | reloc = R_NDS32_17_PCREL_RELA; | |
11257 | cond_removed = 1; | |
11258 | } | |
11259 | else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off | |
11260 | && foff < CONSERVATIVE_24BIT_S1 - reloc_off) | |
11261 | { | |
11262 | /* Relax to one of the following 2 variations | |
35c08157 | 11263 | |
1c8f6a4d KLC |
11264 | case 2-4; 1st insn convertible, 16-bit on. |
11265 | bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16 | |
11266 | j label ; 25_PCREL/INSN16 | |
11267 | $1: | |
35c08157 | 11268 | |
1c8f6a4d KLC |
11269 | case 4-4; 1st insn not convertible |
11270 | bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16 | |
11271 | j label ; 25_PCREL/INSN16 | |
11272 | .L1: */ | |
35c08157 | 11273 | |
1c8f6a4d KLC |
11274 | /* Use j label as second instruction. */ |
11275 | insn = INSN_J; | |
11276 | reloc = R_NDS32_25_PCREL_RELA; | |
11277 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
11278 | } | |
11279 | else | |
11280 | return FALSE; | |
35c08157 | 11281 | |
1c8f6a4d KLC |
11282 | /* Set all relocations. */ |
11283 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), reloc); | |
35c08157 | 11284 | |
1c8f6a4d KLC |
11285 | cond_irel = |
11286 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11287 | R_NDS32_PTR_RESOLVED, em_irel->r_offset); | |
11288 | cond_irel->r_addend = 1; | |
35c08157 | 11289 | |
1c8f6a4d KLC |
11290 | /* Use INSN16 of first branch instruction to distinguish if keeping |
11291 | INSN16 of final instruction or not. */ | |
11292 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11293 | R_NDS32_INSN16, irel->r_offset); | |
11294 | if (insn_irel == irelend) | |
11295 | { | |
11296 | /* Clean the final INSN16. */ | |
11297 | insn_irel = | |
11298 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11299 | R_NDS32_INSN16, em_irel->r_offset); | |
11300 | insn_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11301 | R_NDS32_NONE); | |
11302 | } | |
11303 | ||
11304 | if (cond_removed == 1) | |
11305 | { | |
11306 | *insn_len = 0; | |
11307 | ||
11308 | /* Clear relocations. */ | |
11309 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 11310 | |
fbaf61ad | 11311 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
11312 | { |
11313 | cond_irel = | |
11314 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11315 | checked_types[i], laddr); | |
11316 | if (cond_irel != irelend) | |
35c08157 | 11317 | { |
1c8f6a4d KLC |
11318 | if (*seq_len == 0 |
11319 | && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16)) | |
11320 | { | |
11321 | /* If the branch instruction is 2 byte, it cannot remove | |
11322 | directly. Only convert it to nop16 and remove it after | |
11323 | checking alignment issue. */ | |
11324 | insn16 = NDS32_NOP16; | |
11325 | bfd_putb16 (insn16, contents + laddr); | |
11326 | cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
11327 | } | |
11328 | else | |
11329 | cond_irel->r_info = | |
11330 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 11331 | } |
35c08157 | 11332 | } |
1c8f6a4d KLC |
11333 | } |
11334 | else | |
11335 | { | |
11336 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
11337 | R_NDS32_LONGJUMP5); | |
11338 | } | |
35c08157 | 11339 | |
1c8f6a4d KLC |
11340 | return TRUE; |
11341 | } | |
35c08157 | 11342 | |
1c8f6a4d | 11343 | /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */ |
35c08157 | 11344 | |
1c8f6a4d KLC |
11345 | static bfd_boolean |
11346 | nds32_elf_relax_longjump7 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
11347 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11348 | int *seq_len, bfd_byte *contents, | |
11349 | Elf_Internal_Sym *isymbuf, | |
11350 | Elf_Internal_Shdr *symtab_hdr) | |
11351 | { | |
11352 | /* There are 2 variations for LONGJUMP5 | |
11353 | case 2-4; 1st insn convertible, 16-bit on. | |
11354 | movi55 ta, imm11 ; LONGJUMP7/INSN16 | |
11355 | beq rt, ta, label ; 15_PCREL | |
11356 | ||
11357 | case 4-4; 1st insn not convertible | |
11358 | movi55 ta, imm11 ; LONGJUMP7/INSN16 | |
11359 | beq rt, ta, label ; 15_PCREL */ | |
11360 | ||
11361 | bfd_vma laddr; | |
11362 | Elf_Internal_Rela *cond_irel, *irelend, *insn_irel; | |
1c8f6a4d KLC |
11363 | bfd_signed_vma foff; |
11364 | uint32_t insn, re_insn = 0; | |
11365 | uint16_t insn16; | |
11366 | uint32_t imm11; | |
35c08157 | 11367 | |
1c8f6a4d KLC |
11368 | irelend = internal_relocs + sec->reloc_count; |
11369 | laddr = irel->r_offset; | |
35c08157 | 11370 | |
1c8f6a4d KLC |
11371 | /* Get the reloc for the address from which the register is |
11372 | being loaded. This reloc will tell us which function is | |
11373 | actually being called. */ | |
35c08157 | 11374 | |
1c8f6a4d KLC |
11375 | cond_irel = |
11376 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11377 | R_NDS32_15_PCREL_RELA, irel->r_addend); | |
11378 | if (cond_irel == irelend) | |
11379 | { | |
695344c0 | 11380 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP7", |
2dcf00ce | 11381 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
11382 | return FALSE; |
11383 | } | |
35c08157 | 11384 | |
1c8f6a4d | 11385 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 11386 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 11387 | |
fbaf61ad NC |
11388 | if (foff == 0 |
11389 | || foff < -CONSERVATIVE_8BIT_S1 | |
1c8f6a4d KLC |
11390 | || foff >= CONSERVATIVE_8BIT_S1) |
11391 | return FALSE; | |
35c08157 | 11392 | |
1c8f6a4d KLC |
11393 | /* Get the first instruction for its size. */ |
11394 | insn = bfd_getb32 (contents + laddr); | |
11395 | if (insn & 0x80000000) | |
11396 | { | |
11397 | *seq_len = 0; | |
11398 | /* Get the immediate from movi55. */ | |
11399 | imm11 = N16_IMM5S (insn >> 16); | |
11400 | } | |
11401 | else | |
11402 | { | |
11403 | /* Get the immediate from movi. */ | |
11404 | imm11 = N32_IMM20S (insn); | |
35c08157 KLC |
11405 | } |
11406 | ||
1c8f6a4d KLC |
11407 | /* Get the branch instruction. */ |
11408 | insn = bfd_getb32 (contents + irel->r_addend); | |
11409 | /* Convert instruction to BR3. */ | |
11410 | if ((insn >> 14) & 0x1) | |
11411 | re_insn = N32_BR3 (BNEC, N32_RT5 (insn), imm11, 0); | |
11412 | else | |
11413 | re_insn = N32_BR3 (BEQC, N32_RT5 (insn), imm11, 0); | |
35c08157 | 11414 | |
1c8f6a4d | 11415 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); |
35c08157 | 11416 | |
1c8f6a4d KLC |
11417 | /* Set all relocations. */ |
11418 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11419 | R_NDS32_WORD_9_PCREL_RELA); | |
11420 | ||
11421 | /* Clean relocations. */ | |
11422 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
11423 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11424 | R_NDS32_INSN16, irel->r_offset); | |
11425 | if (insn_irel != irelend) | |
11426 | { | |
11427 | if (*seq_len == 0) | |
35c08157 | 11428 | { |
1c8f6a4d KLC |
11429 | /* If the first insntruction is 16bit, convert it to nop16. */ |
11430 | insn16 = NDS32_NOP16; | |
11431 | bfd_putb16 (insn16, contents + laddr); | |
11432 | insn_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
35c08157 | 11433 | } |
1c8f6a4d KLC |
11434 | else |
11435 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11436 | R_NDS32_NONE); | |
35c08157 | 11437 | } |
1c8f6a4d | 11438 | *insn_len = 0; |
35c08157 | 11439 | |
1c8f6a4d KLC |
11440 | return TRUE; |
11441 | } | |
35c08157 | 11442 | |
fbaf61ad NC |
11443 | /* We figure out and reassign the best gp value in nds32_elf_final_sda_base |
11444 | for each relax round. But the gp may changed dramatically and then cause | |
11445 | the truncated to fit errors for the the converted gp instructions. | |
11446 | Therefore, we must reserve the minimum but safe enough size to prevent it. */ | |
11447 | ||
11448 | static bfd_boolean | |
11449 | nds32_elf_relax_guard (bfd_vma *access_addr, bfd_vma local_sda, asection *sec, | |
11450 | Elf_Internal_Rela *irel, bfd_boolean *again, | |
11451 | bfd_boolean init, | |
11452 | struct elf_nds32_link_hash_table *table, | |
11453 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr) | |
11454 | ||
11455 | { | |
11456 | int offset_to_gp; | |
11457 | static bfd_boolean sec_pass = FALSE; | |
11458 | static asection *first_sec = NULL, *sym_sec; | |
11459 | /* Record the number of instructions which may be removed. */ | |
11460 | static int count = 0, record_count; | |
11461 | Elf_Internal_Sym *isym; | |
11462 | struct elf_link_hash_entry *h = NULL; | |
11463 | int indx; | |
11464 | unsigned long r_symndx; | |
11465 | bfd *abfd = sec->owner; | |
11466 | static bfd_vma record_sda = 0; | |
11467 | int sda_offset = 0; | |
11468 | ||
11469 | /* Force doing relaxation when hyper-relax is high. */ | |
11470 | if (table->hyper_relax == 2) | |
11471 | return TRUE; | |
11472 | ||
11473 | /* Do not relax the load/store patterns for the first | |
11474 | relax round. */ | |
11475 | if (init) | |
11476 | { | |
11477 | if (!first_sec) | |
11478 | first_sec = sec; | |
11479 | else if (first_sec == sec) | |
11480 | { | |
11481 | record_count = count; | |
11482 | count = 0; | |
11483 | sec_pass = TRUE; | |
11484 | } | |
11485 | ||
11486 | if (!sec_pass) | |
11487 | *again = TRUE; | |
11488 | ||
11489 | return TRUE; | |
11490 | } | |
11491 | ||
11492 | /* Generally, _SDA_BASE_ is fixed or smaller. But the large | |
11493 | DATA_SEGMENT_ALIGN size in the linker script may make it | |
11494 | get even bigger. */ | |
11495 | if (record_sda == 0) | |
11496 | record_sda = local_sda; | |
11497 | else if (local_sda > record_sda) | |
11498 | sda_offset = local_sda - record_sda; | |
11499 | ||
11500 | /* Assume the instruction will be removed in the best case. */ | |
11501 | count++; | |
11502 | ||
11503 | /* We record the offset to gp for each symbol, and then check | |
11504 | if it is changed dramatically after relaxing. | |
11505 | (global symbol): elf32_nds32_hash_entry (h)->offset_to_gp | |
11506 | (local symbol) : elf32_nds32_local_gp_offset (abfd)[r_symndx]. */ | |
11507 | r_symndx = ELF32_R_SYM (irel->r_info); | |
11508 | if (r_symndx >= symtab_hdr->sh_info) | |
11509 | { | |
11510 | /* Global symbols. */ | |
11511 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
11512 | h = elf_sym_hashes (abfd)[indx]; | |
11513 | sym_sec = h->root.u.def.section; | |
11514 | if (NDS32_GUARD_SEC_P (sym_sec->flags) | |
11515 | || bfd_is_abs_section (sym_sec)) | |
11516 | { | |
11517 | /* Forbid doing relaxation when hyper-relax is low. */ | |
11518 | if (table->hyper_relax == 0) | |
11519 | return FALSE; | |
11520 | ||
11521 | offset_to_gp = *access_addr - local_sda; | |
11522 | if (elf32_nds32_hash_entry (h)->offset_to_gp == 0) | |
11523 | elf32_nds32_hash_entry (h)->offset_to_gp = offset_to_gp; | |
11524 | else if (abs (elf32_nds32_hash_entry (h)->offset_to_gp) | |
11525 | < abs (offset_to_gp) - sda_offset) | |
11526 | { | |
11527 | /* This may cause the error, so we reserve the | |
11528 | safe enough size for relaxing. */ | |
11529 | if (*access_addr >= local_sda) | |
11530 | *access_addr += (record_count * 4); | |
11531 | else | |
11532 | *access_addr -= (record_count * 4); | |
11533 | } | |
11534 | return sec_pass; | |
11535 | } | |
11536 | } | |
11537 | else | |
11538 | { | |
11539 | /* Local symbols. */ | |
11540 | if (!elf32_nds32_allocate_local_sym_info (abfd)) | |
11541 | return FALSE; | |
11542 | isym = isymbuf + r_symndx; | |
11543 | ||
11544 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
11545 | if (NDS32_GUARD_SEC_P (sym_sec->flags)) | |
11546 | { | |
11547 | /* Forbid doing relaxation when hyper-relax is low. */ | |
11548 | if (table->hyper_relax == 0) | |
11549 | return FALSE; | |
11550 | ||
11551 | offset_to_gp = *access_addr - local_sda; | |
11552 | if (elf32_nds32_local_gp_offset (abfd)[r_symndx] == 0) | |
11553 | elf32_nds32_local_gp_offset (abfd)[r_symndx] = offset_to_gp; | |
11554 | else if (abs (elf32_nds32_local_gp_offset (abfd)[r_symndx]) | |
11555 | < abs (offset_to_gp) - sda_offset) | |
11556 | { | |
11557 | /* This may cause the error, so we reserve the | |
11558 | safe enough size for relaxing. */ | |
11559 | if (*access_addr >= local_sda) | |
11560 | *access_addr += (record_count * 4); | |
11561 | else | |
11562 | *access_addr -= (record_count * 4); | |
11563 | } | |
11564 | return sec_pass; | |
11565 | } | |
11566 | } | |
11567 | ||
11568 | return TRUE; | |
11569 | } | |
11570 | ||
1c8f6a4d | 11571 | #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f) |
35c08157 | 11572 | |
1c8f6a4d | 11573 | /* Relax LOADSTORE relocation for nds32_elf_relax_section. */ |
35c08157 | 11574 | |
1c8f6a4d KLC |
11575 | static bfd_boolean |
11576 | nds32_elf_relax_loadstore (struct bfd_link_info *link_info, bfd *abfd, | |
11577 | asection *sec, Elf_Internal_Rela *irel, | |
11578 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11579 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
fbaf61ad NC |
11580 | Elf_Internal_Shdr *symtab_hdr, int load_store_relax, |
11581 | struct elf_nds32_link_hash_table *table) | |
1c8f6a4d | 11582 | { |
6cae483a AM |
11583 | int eliminate_sethi = 0, range_type; |
11584 | unsigned int i; | |
1c8f6a4d KLC |
11585 | bfd_vma local_sda, laddr; |
11586 | int seq_len; /* Original length of instruction sequence. */ | |
11587 | uint32_t insn; | |
11588 | Elf_Internal_Rela *hi_irelfn = NULL, *irelend; | |
11589 | bfd_vma access_addr = 0; | |
11590 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
fbaf61ad NC |
11591 | struct elf_link_hash_entry *h = NULL; |
11592 | int indx; | |
1c8f6a4d KLC |
11593 | enum elf_nds32_reloc_type checked_types[] = |
11594 | { R_NDS32_HI20_RELA, R_NDS32_GOT_HI20, | |
11595 | R_NDS32_GOTPC_HI20, R_NDS32_GOTOFF_HI20, | |
11596 | R_NDS32_PLTREL_HI20, R_NDS32_PLT_GOTREL_HI20, | |
11597 | R_NDS32_TLS_LE_HI20 | |
11598 | }; | |
35c08157 | 11599 | |
1c8f6a4d KLC |
11600 | irelend = internal_relocs + sec->reloc_count; |
11601 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
11602 | laddr = irel->r_offset; | |
11603 | *insn_len = seq_len; | |
35c08157 | 11604 | |
1c8f6a4d | 11605 | /* Get the high part relocation. */ |
6cae483a | 11606 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
11607 | { |
11608 | hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11609 | checked_types[i], laddr); | |
11610 | if (hi_irelfn != irelend) | |
11611 | break; | |
11612 | } | |
35c08157 | 11613 | |
1c8f6a4d KLC |
11614 | if (hi_irelfn == irelend) |
11615 | { | |
fbaf61ad NC |
11616 | /* Not R_NDS32_HI20_RELA. */ |
11617 | if (i != 0) | |
11618 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LOADSTORE", | |
11619 | (uint64_t) irel->r_offset); | |
11620 | return FALSE; | |
1c8f6a4d | 11621 | } |
35c08157 | 11622 | |
1c8f6a4d KLC |
11623 | range_type = GET_LOADSTORE_RANGE (irel->r_addend); |
11624 | nds32_elf_final_sda_base (sec->output_section->owner, | |
11625 | link_info, &local_sda, FALSE); | |
35c08157 | 11626 | |
1c8f6a4d KLC |
11627 | switch (ELF32_R_TYPE (hi_irelfn->r_info)) |
11628 | { | |
11629 | case R_NDS32_HI20_RELA: | |
11630 | insn = bfd_getb32 (contents + laddr); | |
11631 | access_addr = | |
11632 | calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr); | |
11633 | ||
fbaf61ad | 11634 | if (ELF32_R_SYM (hi_irelfn->r_info) >= symtab_hdr->sh_info) |
1c8f6a4d | 11635 | { |
fbaf61ad NC |
11636 | indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; |
11637 | h = elf_sym_hashes (abfd)[indx]; | |
11638 | } | |
35c08157 | 11639 | |
fbaf61ad NC |
11640 | /* Try movi. */ |
11641 | if (range_type == NDS32_LOADSTORE_IMM | |
11642 | && access_addr < CONSERVATIVE_20BIT | |
11643 | && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0))) | |
11644 | { | |
11645 | eliminate_sethi = 1; | |
11646 | break; | |
11647 | } | |
1c8f6a4d | 11648 | |
fbaf61ad NC |
11649 | if (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0) |
11650 | { | |
11651 | eliminate_sethi = 1; | |
11652 | break; | |
1c8f6a4d | 11653 | } |
fbaf61ad NC |
11654 | else if (!nds32_elf_relax_guard (&access_addr, local_sda, sec, hi_irelfn, |
11655 | NULL, FALSE, table, isymbuf, symtab_hdr)) | |
11656 | return FALSE; | |
1c8f6a4d KLC |
11657 | |
11658 | if (!load_store_relax) | |
11659 | return FALSE; | |
11660 | ||
11661 | /* Case for set gp register. */ | |
11662 | if (N32_RT5 (insn) == REG_GP) | |
fbaf61ad | 11663 | return FALSE; |
1c8f6a4d KLC |
11664 | |
11665 | if (range_type == NDS32_LOADSTORE_FLOAT_S | |
6cef73f9 | 11666 | || range_type == NDS32_LOADSTORE_FLOAT_D) |
1c8f6a4d KLC |
11667 | { |
11668 | range_l = sdata_range[0][0]; | |
11669 | range_h = sdata_range[0][1]; | |
11670 | } | |
11671 | else | |
11672 | { | |
11673 | range_l = sdata_range[1][0]; | |
11674 | range_h = sdata_range[1][1]; | |
11675 | } | |
11676 | break; | |
11677 | ||
1c8f6a4d KLC |
11678 | default: |
11679 | return FALSE; | |
11680 | } | |
11681 | ||
11682 | /* Delete sethi instruction. */ | |
11683 | if (eliminate_sethi == 1 | |
11684 | || (local_sda <= access_addr && (access_addr - local_sda) < range_h) | |
11685 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l)) | |
11686 | { | |
11687 | hi_irelfn->r_info = | |
11688 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
11689 | irel->r_info = | |
11690 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
11691 | *insn_len = 0; | |
fbaf61ad | 11692 | return TRUE; |
1c8f6a4d | 11693 | } |
fbaf61ad NC |
11694 | |
11695 | return FALSE; | |
1c8f6a4d KLC |
11696 | } |
11697 | ||
11698 | /* Relax LO12 relocation for nds32_elf_relax_section. */ | |
11699 | ||
11700 | static void | |
11701 | nds32_elf_relax_lo12 (struct bfd_link_info *link_info, bfd *abfd, | |
11702 | asection *sec, Elf_Internal_Rela *irel, | |
11703 | Elf_Internal_Rela *internal_relocs, bfd_byte *contents, | |
fbaf61ad NC |
11704 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr, |
11705 | struct elf_nds32_link_hash_table *table) | |
1c8f6a4d KLC |
11706 | { |
11707 | uint32_t insn; | |
11708 | bfd_vma local_sda, laddr; | |
11709 | unsigned long reloc; | |
11710 | bfd_vma access_addr; | |
11711 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
11712 | Elf_Internal_Rela *irelfn = NULL, *irelend; | |
11713 | struct elf_link_hash_entry *h = NULL; | |
11714 | int indx; | |
11715 | ||
11716 | /* For SDA base relative relaxation. */ | |
11717 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
11718 | &local_sda, FALSE); | |
11719 | ||
11720 | irelend = internal_relocs + sec->reloc_count; | |
11721 | laddr = irel->r_offset; | |
11722 | insn = bfd_getb32 (contents + laddr); | |
11723 | ||
11724 | if (!is_sda_access_insn (insn) && N32_OP6 (insn) != N32_OP6_ORI) | |
11725 | return; | |
11726 | ||
11727 | access_addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
11728 | ||
11729 | if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info) | |
11730 | { | |
11731 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
11732 | h = elf_sym_hashes (abfd)[indx]; | |
11733 | } | |
11734 | ||
fbaf61ad | 11735 | /* Try movi. */ |
1c8f6a4d KLC |
11736 | if (N32_OP6 (insn) == N32_OP6_ORI && access_addr < CONSERVATIVE_20BIT |
11737 | && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0))) | |
11738 | { | |
11739 | reloc = R_NDS32_20_RELA; | |
11740 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11741 | insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0); | |
11742 | bfd_putb32 (insn, contents + laddr); | |
11743 | } | |
1c8f6a4d KLC |
11744 | else |
11745 | { | |
fbaf61ad NC |
11746 | if (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0) |
11747 | { | |
11748 | /* Fall through. */ | |
11749 | } | |
11750 | else if (!nds32_elf_relax_guard (&access_addr, local_sda, sec, irel, NULL, | |
11751 | FALSE, table, isymbuf, symtab_hdr)) | |
11752 | return; | |
11753 | ||
1c8f6a4d KLC |
11754 | range_l = sdata_range[1][0]; |
11755 | range_h = sdata_range[1][1]; | |
11756 | switch (ELF32_R_TYPE (irel->r_info)) | |
11757 | { | |
11758 | case R_NDS32_LO12S0_RELA: | |
11759 | reloc = R_NDS32_SDA19S0_RELA; | |
11760 | break; | |
11761 | case R_NDS32_LO12S1_RELA: | |
11762 | reloc = R_NDS32_SDA18S1_RELA; | |
11763 | break; | |
11764 | case R_NDS32_LO12S2_RELA: | |
11765 | reloc = R_NDS32_SDA17S2_RELA; | |
11766 | break; | |
11767 | case R_NDS32_LO12S2_DP_RELA: | |
11768 | range_l = sdata_range[0][0]; | |
11769 | range_h = sdata_range[0][1]; | |
11770 | reloc = R_NDS32_SDA12S2_DP_RELA; | |
11771 | break; | |
11772 | case R_NDS32_LO12S2_SP_RELA: | |
11773 | range_l = sdata_range[0][0]; | |
11774 | range_h = sdata_range[0][1]; | |
11775 | reloc = R_NDS32_SDA12S2_SP_RELA; | |
11776 | break; | |
11777 | default: | |
11778 | return; | |
11779 | } | |
11780 | ||
11781 | /* There are range_h and range_l because linker has to promise | |
11782 | all sections move cross one page together. */ | |
11783 | if ((local_sda <= access_addr && (access_addr - local_sda) < range_h) | |
fbaf61ad NC |
11784 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l) |
11785 | || (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0)) | |
1c8f6a4d KLC |
11786 | { |
11787 | if (N32_OP6 (insn) == N32_OP6_ORI && N32_RT5 (insn) == REG_GP) | |
35c08157 | 11788 | { |
1c8f6a4d KLC |
11789 | /* Maybe we should add R_NDS32_INSN16 reloc type here |
11790 | or manually do some optimization. sethi can't be | |
11791 | eliminated when updating $gp so the relative ori | |
11792 | needs to be preserved. */ | |
11793 | return; | |
35c08157 | 11794 | } |
1c8f6a4d KLC |
11795 | if (!turn_insn_to_sda_access (insn, ELF32_R_TYPE (irel->r_info), |
11796 | &insn)) | |
11797 | return; | |
11798 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11799 | bfd_putb32 (insn, contents + laddr); | |
11800 | ||
11801 | irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
11802 | R_NDS32_INSN16); | |
11803 | /* SDA17 must keep INSN16 for converting fp_as_gp. */ | |
11804 | if (irelfn != irelend && reloc != R_NDS32_SDA17S2_RELA) | |
11805 | irelfn->r_info = | |
11806 | ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_NDS32_NONE); | |
11807 | ||
35c08157 | 11808 | } |
1c8f6a4d KLC |
11809 | } |
11810 | return; | |
11811 | } | |
35c08157 | 11812 | |
1c8f6a4d | 11813 | /* Relax PTR relocation for nds32_elf_relax_section. */ |
35c08157 | 11814 | |
1c8f6a4d KLC |
11815 | static bfd_boolean |
11816 | nds32_elf_relax_ptr (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
11817 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11818 | int *seq_len, bfd_byte *contents) | |
11819 | { | |
11820 | Elf_Internal_Rela *ptr_irel, *irelend, *count_irel, *re_irel; | |
35c08157 | 11821 | |
1c8f6a4d | 11822 | irelend = internal_relocs + sec->reloc_count; |
35c08157 | 11823 | |
1c8f6a4d KLC |
11824 | re_irel = |
11825 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11826 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
35c08157 | 11827 | |
1c8f6a4d KLC |
11828 | if (re_irel == irelend) |
11829 | { | |
695344c0 | 11830 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_PTR", |
2dcf00ce | 11831 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
11832 | return FALSE; |
11833 | } | |
35c08157 | 11834 | |
1c8f6a4d KLC |
11835 | if (re_irel->r_addend != 1) |
11836 | return FALSE; | |
35c08157 | 11837 | |
1c8f6a4d KLC |
11838 | /* Pointed target is relaxed and no longer needs this void *, |
11839 | change the type to NONE. */ | |
11840 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 11841 | |
1c8f6a4d KLC |
11842 | /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does |
11843 | not exist, it means only count 1 and remove it directly. */ | |
11844 | /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */ | |
11845 | count_irel = find_relocs_at_address (irel, internal_relocs, irelend, | |
11846 | R_NDS32_PTR_COUNT); | |
11847 | ptr_irel = find_relocs_at_address (irel, internal_relocs, irelend, | |
11848 | R_NDS32_PTR); | |
11849 | if (count_irel != irelend) | |
11850 | { | |
11851 | if (--count_irel->r_addend > 0) | |
11852 | return FALSE; | |
11853 | } | |
11854 | ||
11855 | if (ptr_irel != irelend) | |
11856 | return FALSE; | |
11857 | ||
11858 | /* If the PTR_COUNT is already 0, remove current instruction. */ | |
11859 | *seq_len = nds32_elf_insn_size (abfd, contents, irel->r_offset); | |
11860 | *insn_len = 0; | |
11861 | return TRUE; | |
11862 | } | |
11863 | ||
fbaf61ad | 11864 | /* Relax LWC relocation for nds32_elf_relax_section. */ |
1c8f6a4d KLC |
11865 | |
11866 | static void | |
fbaf61ad NC |
11867 | nds32_elf_relax_flsi (struct bfd_link_info *link_info, bfd *abfd, |
11868 | asection *sec, Elf_Internal_Rela *irel, | |
11869 | Elf_Internal_Rela *internal_relocs, | |
11870 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
11871 | Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again) | |
1c8f6a4d | 11872 | { |
fbaf61ad NC |
11873 | /* Pattern: |
11874 | sethi ra, hi20(symbol) ; HI20/LOADSTORE | |
11875 | ori ra, ra, lo12(symbol) ; LO12S0/PTR/PTR/.../INSN16 | |
11876 | flsi fsa, [ra + offset1] ; LSI/PTR_RESOLVED/INSN16 | |
11877 | flsi fsb, [ra + offset2] ; LSI/PTR_RESOLVED/INSN16 | |
11878 | ... */ | |
11879 | ||
1c8f6a4d | 11880 | uint32_t insn; |
1c8f6a4d | 11881 | bfd_vma local_sda, laddr; |
fbaf61ad NC |
11882 | unsigned long reloc; |
11883 | bfd_vma access_addr, flsi_offset; | |
11884 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
11885 | Elf_Internal_Rela *irelend, *re_irel; | |
11886 | unsigned int opcode; | |
1c8f6a4d KLC |
11887 | |
11888 | irelend = internal_relocs + sec->reloc_count; | |
11889 | laddr = irel->r_offset; | |
11890 | insn = bfd_getb32 (contents + laddr); | |
11891 | ||
fbaf61ad | 11892 | if ((insn & 0x80000000) || !is_sda_access_insn (insn)) |
1c8f6a4d KLC |
11893 | return; |
11894 | ||
fbaf61ad NC |
11895 | /* Can not do relaxation for bi format. */ |
11896 | if ((insn & 0x1000)) | |
1c8f6a4d KLC |
11897 | return; |
11898 | ||
fbaf61ad NC |
11899 | /* Only deal with flsi, fssi, fldi, fsdi, so far. */ |
11900 | opcode = N32_OP6 (insn); | |
11901 | if ((opcode == N32_OP6_LWC) || (opcode == N32_OP6_SWC)) | |
11902 | reloc = R_NDS32_SDA12S2_SP_RELA; | |
11903 | else if ((opcode == N32_OP6_LDC) || (opcode == N32_OP6_SDC)) | |
11904 | reloc = R_NDS32_SDA12S2_DP_RELA; | |
1c8f6a4d KLC |
11905 | else |
11906 | return; | |
11907 | ||
fbaf61ad NC |
11908 | re_irel = find_relocs_at_address (irel, internal_relocs, irelend, |
11909 | R_NDS32_PTR_RESOLVED); | |
11910 | if (re_irel == irelend) | |
1c8f6a4d | 11911 | { |
fbaf61ad NC |
11912 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LSI", |
11913 | (uint64_t) irel->r_offset); | |
11914 | return; | |
1c8f6a4d | 11915 | } |
1c8f6a4d | 11916 | |
fbaf61ad | 11917 | /* For SDA base relative relaxation. */ |
1c8f6a4d KLC |
11918 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, |
11919 | &local_sda, FALSE); | |
fbaf61ad NC |
11920 | access_addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); |
11921 | flsi_offset = (insn & 0xfff) << 2; | |
11922 | access_addr += flsi_offset; | |
11923 | range_l = sdata_range[0][0]; | |
11924 | range_h = sdata_range[0][1]; | |
1c8f6a4d | 11925 | |
fbaf61ad NC |
11926 | if ((local_sda <= access_addr && (access_addr - local_sda) < range_h) |
11927 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l)) | |
1c8f6a4d | 11928 | { |
fbaf61ad NC |
11929 | /* Turn flsi instruction into sda access format. */ |
11930 | insn = (insn & 0x7ff07000) | (REG_GP << 15); | |
1c8f6a4d | 11931 | |
fbaf61ad NC |
11932 | /* Add relocation type to flsi. */ |
11933 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11934 | irel->r_addend += flsi_offset; | |
11935 | bfd_putb32 (insn, contents + re_irel->r_offset); | |
1c8f6a4d | 11936 | |
fbaf61ad | 11937 | re_irel->r_addend |= 1; |
1c8f6a4d KLC |
11938 | *again = TRUE; |
11939 | } | |
1c8f6a4d KLC |
11940 | } |
11941 | ||
11942 | static bfd_boolean | |
11943 | nds32_relax_adjust_label (bfd *abfd, asection *sec, | |
11944 | Elf_Internal_Rela *internal_relocs, | |
11945 | bfd_byte *contents, | |
11946 | nds32_elf_blank_t **relax_blank_list, | |
11947 | int optimize, int opt_size) | |
11948 | { | |
11949 | /* This code block is used to adjust 4-byte alignment by relax a pair | |
11950 | of instruction a time. | |
11951 | ||
11952 | It recognizes three types of relocations. | |
de194d85 | 11953 | 1. R_NDS32_LABEL - a alignment. |
1c8f6a4d KLC |
11954 | 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit. |
11955 | 3. is_16bit_NOP () - remove a 16-bit instruction. */ | |
11956 | ||
de194d85 YC |
11957 | /* TODO: It seems currently implementation only support 4-byte alignment. |
11958 | We should handle any-alignment. */ | |
1c8f6a4d KLC |
11959 | |
11960 | Elf_Internal_Rela *insn_rel = NULL, *label_rel = NULL, *irel; | |
11961 | Elf_Internal_Rela *tmp_rel, *tmp2_rel = NULL; | |
11962 | Elf_Internal_Rela rel_temp; | |
11963 | Elf_Internal_Rela *irelend; | |
11964 | bfd_vma address; | |
11965 | uint16_t insn16; | |
11966 | ||
11967 | /* Checking for branch relaxation relies on the relocations to | |
11968 | be sorted on 'r_offset'. This is not guaranteed so we must sort. */ | |
11969 | nds32_insertion_sort (internal_relocs, sec->reloc_count, | |
11970 | sizeof (Elf_Internal_Rela), compar_reloc); | |
11971 | ||
11972 | irelend = internal_relocs + sec->reloc_count; | |
11973 | ||
11974 | /* Force R_NDS32_LABEL before R_NDS32_INSN16. */ | |
11975 | /* FIXME: Can we generate the right order in assembler? | |
11976 | So we don't have to swapping them here. */ | |
11977 | ||
11978 | for (label_rel = internal_relocs, insn_rel = internal_relocs; | |
11979 | label_rel < irelend; label_rel++) | |
11980 | { | |
11981 | if (ELF32_R_TYPE (label_rel->r_info) != R_NDS32_LABEL) | |
11982 | continue; | |
11983 | ||
11984 | /* Find the first reloc has the same offset with label_rel. */ | |
11985 | while (insn_rel < irelend && insn_rel->r_offset < label_rel->r_offset) | |
11986 | insn_rel++; | |
11987 | ||
11988 | for (;insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset; | |
11989 | insn_rel++) | |
11990 | /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same | |
11991 | address. */ | |
11992 | if (ELF32_R_TYPE (insn_rel->r_info) == R_NDS32_INSN16) | |
11993 | break; | |
11994 | ||
11995 | if (insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset | |
11996 | && insn_rel < label_rel) | |
11997 | { | |
11998 | /* Swap the two reloc if the R_NDS32_INSN16 is | |
11999 | before R_NDS32_LABEL. */ | |
12000 | memcpy (&rel_temp, insn_rel, sizeof (Elf_Internal_Rela)); | |
12001 | memcpy (insn_rel, label_rel, sizeof (Elf_Internal_Rela)); | |
12002 | memcpy (label_rel, &rel_temp, sizeof (Elf_Internal_Rela)); | |
12003 | } | |
12004 | } | |
12005 | ||
12006 | label_rel = NULL; | |
12007 | insn_rel = NULL; | |
12008 | /* If there were a sequence of R_NDS32_LABEL end up with .align 2 | |
12009 | or higher, remove other R_NDS32_LABEL with lower alignment. | |
12010 | If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted, | |
12011 | then the R_NDS32_LABEL sequence is broke. */ | |
12012 | for (tmp_rel = internal_relocs; tmp_rel < irelend; tmp_rel++) | |
12013 | { | |
12014 | if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_LABEL) | |
12015 | { | |
12016 | if (label_rel == NULL) | |
12017 | { | |
12018 | if (tmp_rel->r_addend < 2) | |
12019 | label_rel = tmp_rel; | |
12020 | continue; | |
12021 | } | |
12022 | else if (tmp_rel->r_addend > 1) | |
12023 | { | |
12024 | /* Remove all LABEL relocation from label_rel to tmp_rel | |
12025 | including relocations with same offset as tmp_rel. */ | |
fbaf61ad | 12026 | for (tmp2_rel = label_rel; tmp2_rel < tmp_rel; tmp2_rel++) |
1c8f6a4d | 12027 | { |
fbaf61ad NC |
12028 | if (tmp2_rel->r_offset == tmp_rel->r_offset) |
12029 | break; | |
12030 | ||
1c8f6a4d KLC |
12031 | if (ELF32_R_TYPE (tmp2_rel->r_info) == R_NDS32_LABEL |
12032 | && tmp2_rel->r_addend < 2) | |
12033 | tmp2_rel->r_info = | |
12034 | ELF32_R_INFO (ELF32_R_SYM (tmp2_rel->r_info), | |
12035 | R_NDS32_NONE); | |
12036 | } | |
12037 | label_rel = NULL; | |
12038 | } | |
12039 | } | |
12040 | else if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 && label_rel) | |
12041 | { | |
12042 | /* A new INSN16 which can be converted, so clear label_rel. */ | |
12043 | if (is_convert_32_to_16 (abfd, sec, tmp_rel, internal_relocs, | |
12044 | irelend, &insn16) | |
12045 | || is_16bit_NOP (abfd, sec, tmp_rel)) | |
12046 | label_rel = NULL; | |
12047 | } | |
12048 | } | |
12049 | ||
12050 | label_rel = NULL; | |
12051 | insn_rel = NULL; | |
12052 | /* Optimized for speed and nothing has not been relaxed. | |
12053 | It's time to align labels. | |
12054 | We may convert a 16-bit instruction right before a label to | |
12055 | 32-bit, in order to align the label if necessary | |
12056 | all reloc entries has been sorted by r_offset. */ | |
fbaf61ad NC |
12057 | for (irel = internal_relocs; |
12058 | irel < irelend && irel->r_offset < sec->size; irel++) | |
1c8f6a4d KLC |
12059 | { |
12060 | if (ELF32_R_TYPE (irel->r_info) != R_NDS32_INSN16 | |
12061 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL) | |
12062 | continue; | |
12063 | ||
12064 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_INSN16) | |
12065 | { | |
12066 | /* A new INSN16 found, resize the old one. */ | |
12067 | if (is_convert_32_to_16 | |
12068 | (abfd, sec, irel, internal_relocs, irelend, &insn16) | |
12069 | || is_16bit_NOP (abfd, sec, irel)) | |
12070 | { | |
12071 | if (insn_rel) | |
12072 | { | |
12073 | /* Previous INSN16 reloc exists, reduce its | |
12074 | size to 16-bit. */ | |
12075 | if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs, | |
12076 | irelend, &insn16)) | |
35c08157 | 12077 | { |
1c8f6a4d KLC |
12078 | nds32_elf_write_16 (abfd, contents, insn_rel, |
12079 | internal_relocs, irelend, insn16); | |
12080 | ||
12081 | if (!insert_nds32_elf_blank_recalc_total | |
12082 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
12083 | return FALSE; | |
12084 | } | |
12085 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
12086 | { | |
12087 | if (!insert_nds32_elf_blank_recalc_total | |
12088 | (relax_blank_list, insn_rel->r_offset, 2)) | |
12089 | return FALSE; | |
12090 | } | |
12091 | insn_rel->r_info = | |
12092 | ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), R_NDS32_NONE); | |
12093 | } | |
12094 | /* Save the new one for later use. */ | |
12095 | insn_rel = irel; | |
12096 | } | |
12097 | else | |
12098 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
12099 | R_NDS32_NONE); | |
12100 | } | |
12101 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL) | |
12102 | { | |
12103 | /* Search for label. */ | |
12104 | int force_relax = 0; | |
12105 | ||
12106 | /* Label on 16-bit instruction or optimization | |
12107 | needless, just reset this reloc. */ | |
12108 | insn16 = bfd_getb16 (contents + irel->r_offset); | |
12109 | if ((irel->r_addend & 0x1f) < 2 && (!optimize || (insn16 & 0x8000))) | |
12110 | { | |
12111 | irel->r_info = | |
12112 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
12113 | continue; | |
12114 | } | |
12115 | ||
12116 | address = | |
12117 | irel->r_offset - get_nds32_elf_blank_total (relax_blank_list, | |
12118 | irel->r_offset, 1); | |
12119 | ||
12120 | if (!insn_rel) | |
12121 | { | |
12122 | /* Check if there is case which can not be aligned. */ | |
12123 | if (irel->r_addend == 2 && address & 0x2) | |
12124 | return FALSE; | |
12125 | continue; | |
12126 | } | |
12127 | ||
12128 | /* Try to align this label. */ | |
12129 | ||
12130 | if ((irel->r_addend & 0x1f) < 2) | |
12131 | { | |
12132 | /* Check if there is a INSN16 at the same address. | |
12133 | Label_rel always seats before insn_rel after | |
12134 | our sort. */ | |
12135 | ||
12136 | /* Search for INSN16 at LABEL location. If INSN16 is at | |
12137 | same location and this LABEL alignment is lower than 2, | |
12138 | the INSN16 can be converted to 2-byte. */ | |
12139 | for (tmp_rel = irel; | |
12140 | tmp_rel < irelend && tmp_rel->r_offset == irel->r_offset; | |
12141 | tmp_rel++) | |
12142 | { | |
12143 | if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 | |
12144 | && (is_convert_32_to_16 | |
12145 | (abfd, sec, tmp_rel, internal_relocs, | |
12146 | irelend, &insn16) | |
12147 | || is_16bit_NOP (abfd, sec, tmp_rel))) | |
12148 | { | |
12149 | force_relax = 1; | |
12150 | break; | |
12151 | } | |
12152 | } | |
12153 | } | |
12154 | ||
12155 | if (force_relax || irel->r_addend == 1 || address & 0x2) | |
12156 | { | |
12157 | /* Label not aligned. */ | |
12158 | /* Previous reloc exists, reduce its size to 16-bit. */ | |
12159 | if (is_convert_32_to_16 (abfd, sec, insn_rel, | |
12160 | internal_relocs, irelend, &insn16)) | |
12161 | { | |
12162 | nds32_elf_write_16 (abfd, contents, insn_rel, | |
12163 | internal_relocs, irelend, insn16); | |
12164 | ||
12165 | if (!insert_nds32_elf_blank_recalc_total | |
12166 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
12167 | return FALSE; | |
12168 | } | |
12169 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
12170 | { | |
12171 | if (!insert_nds32_elf_blank_recalc_total | |
12172 | (relax_blank_list, insn_rel->r_offset, 2)) | |
12173 | return FALSE; | |
12174 | } | |
12175 | ||
12176 | } | |
12177 | /* INSN16 reloc is used. */ | |
12178 | insn_rel = NULL; | |
12179 | } | |
12180 | } | |
12181 | ||
12182 | address = | |
12183 | sec->size - get_nds32_elf_blank_total (relax_blank_list, sec->size, 0); | |
12184 | if (insn_rel && (address & 0x2 || opt_size)) | |
12185 | { | |
12186 | if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs, | |
12187 | irelend, &insn16)) | |
12188 | { | |
12189 | nds32_elf_write_16 (abfd, contents, insn_rel, internal_relocs, | |
12190 | irelend, insn16); | |
12191 | if (!insert_nds32_elf_blank_recalc_total | |
12192 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
12193 | return FALSE; | |
12194 | insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), | |
12195 | R_NDS32_NONE); | |
12196 | } | |
12197 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
12198 | { | |
12199 | if (!insert_nds32_elf_blank_recalc_total | |
12200 | (relax_blank_list, insn_rel->r_offset, 2)) | |
12201 | return FALSE; | |
12202 | insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), | |
12203 | R_NDS32_NONE); | |
12204 | } | |
12205 | } | |
12206 | insn_rel = NULL; | |
12207 | return TRUE; | |
12208 | } | |
12209 | ||
1c8f6a4d KLC |
12210 | static bfd_boolean |
12211 | nds32_elf_relax_section (bfd *abfd, asection *sec, | |
12212 | struct bfd_link_info *link_info, bfd_boolean *again) | |
12213 | { | |
12214 | nds32_elf_blank_t *relax_blank_list = NULL; | |
12215 | Elf_Internal_Shdr *symtab_hdr; | |
12216 | Elf_Internal_Rela *internal_relocs; | |
12217 | Elf_Internal_Rela *irel; | |
12218 | Elf_Internal_Rela *irelend; | |
12219 | Elf_Internal_Sym *isymbuf = NULL; | |
12220 | bfd_byte *contents = NULL; | |
12221 | bfd_boolean result = TRUE; | |
12222 | int optimize = 0; | |
12223 | int opt_size = 0; | |
12224 | uint32_t insn; | |
12225 | uint16_t insn16; | |
12226 | ||
12227 | /* Target dependnet option. */ | |
12228 | struct elf_nds32_link_hash_table *table; | |
12229 | int load_store_relax; | |
1c8f6a4d KLC |
12230 | |
12231 | relax_blank_list = NULL; | |
12232 | ||
12233 | *again = FALSE; | |
12234 | ||
12235 | /* Nothing to do for | |
12236 | * relocatable link or | |
12237 | * non-relocatable section or | |
12238 | * non-code section or | |
12239 | * empty content or | |
12240 | * no reloc entry. */ | |
0e1862bb | 12241 | if (bfd_link_relocatable (link_info) |
1c8f6a4d | 12242 | || (sec->flags & SEC_RELOC) == 0 |
cd28e7aa | 12243 | || (sec->flags & SEC_EXCLUDE) != 0 |
1c8f6a4d | 12244 | || (sec->flags & SEC_CODE) == 0 |
fbaf61ad NC |
12245 | || sec->size == 0 |
12246 | || sec->reloc_count == 0) | |
1c8f6a4d KLC |
12247 | return TRUE; |
12248 | ||
12249 | /* 09.12.11 Workaround. */ | |
12250 | /* We have to adjust align for R_NDS32_LABEL if needed. | |
12251 | The adjust approach only can fix 2-byte align once. */ | |
12252 | if (sec->alignment_power > 2) | |
12253 | return TRUE; | |
12254 | ||
fbaf61ad NC |
12255 | /* Do TLS model conversion once at first. */ |
12256 | nds32_elf_unify_tls_model (abfd, sec, contents, link_info); | |
12257 | ||
1c8f6a4d KLC |
12258 | /* The optimization type to do. */ |
12259 | ||
12260 | table = nds32_elf_hash_table (link_info); | |
1c8f6a4d | 12261 | |
fbaf61ad NC |
12262 | /* Save the first section for abs symbol relaxation. |
12263 | This is used for checking gp relaxation in the | |
12264 | nds32_elf_relax_loadstore and nds32_elf_relax_lo12. */ | |
12265 | nds32_elf_relax_guard (NULL, 0, sec, NULL, again, TRUE, | |
12266 | table, NULL, NULL); | |
12267 | ||
1c8f6a4d KLC |
12268 | /* The begining of general relaxation. */ |
12269 | ||
12270 | if (is_SDA_BASE_set == 0) | |
12271 | { | |
12272 | bfd_vma gp; | |
12273 | is_SDA_BASE_set = 1; | |
12274 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
12275 | &gp, FALSE); | |
12276 | relax_range_measurement (abfd); | |
12277 | } | |
12278 | ||
1c8f6a4d KLC |
12279 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
12280 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
12281 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, | |
12282 | TRUE /* keep_memory */); | |
12283 | if (internal_relocs == NULL) | |
12284 | goto error_return; | |
12285 | ||
12286 | irelend = internal_relocs + sec->reloc_count; | |
12287 | irel = find_relocs_at_address (internal_relocs, internal_relocs, | |
12288 | irelend, R_NDS32_RELAX_ENTRY); | |
12289 | ||
12290 | if (irel == irelend) | |
12291 | return TRUE; | |
12292 | ||
12293 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY) | |
12294 | { | |
12295 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG) | |
f9671640 | 12296 | return TRUE; |
1c8f6a4d KLC |
12297 | |
12298 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG) | |
12299 | optimize = 1; | |
12300 | ||
12301 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG) | |
12302 | opt_size = 1; | |
12303 | } | |
12304 | ||
12305 | load_store_relax = table->load_store_relax; | |
12306 | ||
12307 | /* Get symbol table and section content. */ | |
0c4bd9d9 | 12308 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE) |
1c8f6a4d KLC |
12309 | || !nds32_get_local_syms (abfd, sec, &isymbuf)) |
12310 | goto error_return; | |
12311 | ||
12312 | /* Do relax loop only when finalize is not done. | |
12313 | Take care of relaxable relocs except INSN16. */ | |
12314 | for (irel = internal_relocs; irel < irelend; irel++) | |
12315 | { | |
12316 | int seq_len; /* Original length of instruction sequence. */ | |
12317 | int insn_len = 0; /* Final length of instruction sequence. */ | |
12318 | bfd_boolean removed; | |
12319 | ||
12320 | insn = 0; | |
12321 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
12322 | && (irel->r_addend & 0x1f) >= 2) | |
12323 | optimize = 1; | |
12324 | ||
12325 | /* Relocation Types | |
12326 | R_NDS32_LONGCALL1 53 | |
12327 | R_NDS32_LONGCALL2 54 | |
12328 | R_NDS32_LONGCALL3 55 | |
12329 | R_NDS32_LONGJUMP1 56 | |
12330 | R_NDS32_LONGJUMP2 57 | |
12331 | R_NDS32_LONGJUMP3 58 | |
12332 | R_NDS32_LOADSTORE 59 */ | |
12333 | if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL1 | |
12334 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LOADSTORE) | |
12335 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
12336 | ||
12337 | /* Relocation Types | |
12338 | R_NDS32_LONGCALL4 107 | |
12339 | R_NDS32_LONGCALL5 108 | |
12340 | R_NDS32_LONGCALL6 109 | |
12341 | R_NDS32_LONGJUMP4 110 | |
12342 | R_NDS32_LONGJUMP5 111 | |
12343 | R_NDS32_LONGJUMP6 112 | |
12344 | R_NDS32_LONGJUMP7 113 */ | |
12345 | else if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL4 | |
12346 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LONGJUMP7) | |
12347 | seq_len = 4; | |
12348 | ||
12349 | /* Relocation Types | |
12350 | R_NDS32_LO12S0_RELA 30 | |
12351 | R_NDS32_LO12S1_RELA 29 | |
12352 | R_NDS32_LO12S2_RELA 28 | |
12353 | R_NDS32_LO12S2_SP_RELA 71 | |
12354 | R_NDS32_LO12S2_DP_RELA 70 | |
12355 | R_NDS32_GOT_LO12 46 | |
12356 | R_NDS32_GOTOFF_LO12 50 | |
12357 | R_NDS32_PLTREL_LO12 65 | |
12358 | R_NDS32_PLT_GOTREL_LO12 67 | |
12359 | R_NDS32_17IFC_PCREL_RELA 96 | |
12360 | R_NDS32_GOT_SUFF 193 | |
12361 | R_NDS32_GOTOFF_SUFF 194 | |
12362 | R_NDS32_PLT_GOT_SUFF 195 | |
12363 | R_NDS32_MULCALL_SUFF 196 | |
12364 | R_NDS32_PTR 197 */ | |
12365 | else if ((ELF32_R_TYPE (irel->r_info) <= R_NDS32_LO12S0_RELA | |
12366 | && ELF32_R_TYPE (irel->r_info) >= R_NDS32_LO12S2_RELA) | |
12367 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_SP_RELA | |
12368 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_DP_RELA | |
12369 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOT_LO12 | |
12370 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTOFF_LO12 | |
12371 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTPC_LO12 | |
12372 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLTREL_LO12 | |
12373 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLT_GOTREL_LO12 | |
12374 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_GOT_SUFF | |
12375 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_PTR) | |
12376 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA | |
12377 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LO12 | |
12378 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_ADD | |
fbaf61ad NC |
12379 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LS |
12380 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LSI) | |
1c8f6a4d KLC |
12381 | seq_len = 0; |
12382 | else | |
12383 | continue; | |
12384 | ||
12385 | insn_len = seq_len; | |
12386 | removed = FALSE; | |
12387 | ||
12388 | switch (ELF32_R_TYPE (irel->r_info)) | |
12389 | { | |
12390 | case R_NDS32_LONGCALL1: | |
12391 | removed = nds32_elf_relax_longcall1 (abfd, sec, irel, internal_relocs, | |
12392 | &insn_len, contents, isymbuf, | |
12393 | symtab_hdr); | |
12394 | break; | |
12395 | case R_NDS32_LONGCALL2: | |
12396 | removed = nds32_elf_relax_longcall2 (abfd, sec, irel, internal_relocs, | |
12397 | &insn_len, contents, isymbuf, | |
12398 | symtab_hdr); | |
12399 | break; | |
12400 | case R_NDS32_LONGCALL3: | |
12401 | removed = nds32_elf_relax_longcall3 (abfd, sec, irel, internal_relocs, | |
12402 | &insn_len, contents, isymbuf, | |
12403 | symtab_hdr); | |
12404 | break; | |
12405 | case R_NDS32_LONGJUMP1: | |
12406 | removed = nds32_elf_relax_longjump1 (abfd, sec, irel, internal_relocs, | |
12407 | &insn_len, contents, isymbuf, | |
12408 | symtab_hdr); | |
12409 | break; | |
12410 | case R_NDS32_LONGJUMP2: | |
12411 | removed = nds32_elf_relax_longjump2 (abfd, sec, irel, internal_relocs, | |
12412 | &insn_len, contents, isymbuf, | |
12413 | symtab_hdr); | |
12414 | break; | |
12415 | case R_NDS32_LONGJUMP3: | |
12416 | removed = nds32_elf_relax_longjump3 (abfd, sec, irel, internal_relocs, | |
12417 | &insn_len, contents, isymbuf, | |
12418 | symtab_hdr); | |
12419 | break; | |
12420 | case R_NDS32_LONGCALL4: | |
12421 | removed = nds32_elf_relax_longcall4 (abfd, sec, irel, internal_relocs, | |
12422 | &insn_len, contents, isymbuf, | |
12423 | symtab_hdr); | |
12424 | break; | |
12425 | case R_NDS32_LONGCALL5: | |
12426 | removed = nds32_elf_relax_longcall5 (abfd, sec, irel, internal_relocs, | |
12427 | &insn_len, contents, isymbuf, | |
12428 | symtab_hdr); | |
12429 | break; | |
12430 | case R_NDS32_LONGCALL6: | |
12431 | removed = nds32_elf_relax_longcall6 (abfd, sec, irel, internal_relocs, | |
12432 | &insn_len, contents, isymbuf, | |
12433 | symtab_hdr); | |
12434 | break; | |
12435 | case R_NDS32_LONGJUMP4: | |
12436 | removed = nds32_elf_relax_longjump4 (abfd, sec, irel, internal_relocs, | |
12437 | &insn_len, contents, isymbuf, | |
12438 | symtab_hdr); | |
12439 | break; | |
12440 | case R_NDS32_LONGJUMP5: | |
12441 | removed = nds32_elf_relax_longjump5 (abfd, sec, irel, internal_relocs, | |
12442 | &insn_len, &seq_len, contents, | |
12443 | isymbuf, symtab_hdr); | |
12444 | break; | |
12445 | case R_NDS32_LONGJUMP6: | |
12446 | removed = nds32_elf_relax_longjump6 (abfd, sec, irel, internal_relocs, | |
12447 | &insn_len, &seq_len, contents, | |
12448 | isymbuf, symtab_hdr); | |
12449 | break; | |
12450 | case R_NDS32_LONGJUMP7: | |
12451 | removed = nds32_elf_relax_longjump7 (abfd, sec, irel, internal_relocs, | |
12452 | &insn_len, &seq_len, contents, | |
12453 | isymbuf, symtab_hdr); | |
12454 | break; | |
12455 | case R_NDS32_LOADSTORE: | |
12456 | removed = nds32_elf_relax_loadstore (link_info, abfd, sec, irel, | |
12457 | internal_relocs, &insn_len, | |
12458 | contents, isymbuf, symtab_hdr, | |
fbaf61ad | 12459 | load_store_relax, table); |
1c8f6a4d KLC |
12460 | break; |
12461 | case R_NDS32_LO12S0_RELA: | |
12462 | case R_NDS32_LO12S1_RELA: | |
fbaf61ad | 12463 | case R_NDS32_LO12S2_RELA: |
1c8f6a4d KLC |
12464 | case R_NDS32_LO12S2_DP_RELA: |
12465 | case R_NDS32_LO12S2_SP_RELA: | |
1c8f6a4d KLC |
12466 | /* Relax for low part. */ |
12467 | nds32_elf_relax_lo12 (link_info, abfd, sec, irel, internal_relocs, | |
fbaf61ad | 12468 | contents, isymbuf, symtab_hdr, table); |
1c8f6a4d KLC |
12469 | |
12470 | /* It is impossible to delete blank, so just continue. */ | |
12471 | continue; | |
fbaf61ad NC |
12472 | case R_NDS32_PTR: |
12473 | removed = nds32_elf_relax_ptr (abfd, sec, irel, internal_relocs, | |
12474 | &insn_len, &seq_len, contents); | |
12475 | break; | |
12476 | case R_NDS32_LSI: | |
12477 | nds32_elf_relax_flsi (link_info, abfd, sec, irel, internal_relocs, | |
12478 | contents, isymbuf, symtab_hdr, again); | |
12479 | continue; | |
1c8f6a4d KLC |
12480 | case R_NDS32_GOT_LO12: |
12481 | case R_NDS32_GOTOFF_LO12: | |
12482 | case R_NDS32_PLTREL_LO12: | |
12483 | case R_NDS32_PLT_GOTREL_LO12: | |
12484 | case R_NDS32_GOTPC_LO12: | |
1c8f6a4d | 12485 | case R_NDS32_TLS_LE_LO12: |
1c8f6a4d | 12486 | case R_NDS32_TLS_LE_ADD: |
1c8f6a4d | 12487 | case R_NDS32_TLS_LE_LS: |
1c8f6a4d | 12488 | case R_NDS32_PLT_GOT_SUFF: |
1c8f6a4d | 12489 | case R_NDS32_GOT_SUFF: |
1c8f6a4d | 12490 | case R_NDS32_GOTOFF_SUFF: |
1c8f6a4d KLC |
12491 | continue; |
12492 | default: | |
12493 | continue; | |
1c8f6a4d | 12494 | } |
fbaf61ad | 12495 | |
1c8f6a4d KLC |
12496 | if (removed && seq_len - insn_len > 0) |
12497 | { | |
12498 | if (!insert_nds32_elf_blank | |
12499 | (&relax_blank_list, irel->r_offset + insn_len, | |
12500 | seq_len - insn_len)) | |
12501 | goto error_return; | |
12502 | *again = TRUE; | |
35c08157 | 12503 | } |
1c8f6a4d KLC |
12504 | } |
12505 | ||
12506 | calc_nds32_blank_total (relax_blank_list); | |
12507 | ||
12508 | if (table->relax_fp_as_gp) | |
12509 | { | |
12510 | if (!nds32_relax_fp_as_gp (link_info, abfd, sec, internal_relocs, | |
12511 | irelend, isymbuf)) | |
12512 | goto error_return; | |
35c08157 | 12513 | |
535b785f | 12514 | if (!*again) |
35c08157 | 12515 | { |
1c8f6a4d KLC |
12516 | if (!nds32_fag_remove_unused_fpbase (abfd, sec, internal_relocs, |
12517 | irelend)) | |
12518 | goto error_return; | |
35c08157 KLC |
12519 | } |
12520 | } | |
1c8f6a4d | 12521 | |
535b785f | 12522 | if (!*again) |
1c8f6a4d KLC |
12523 | { |
12524 | if (!nds32_relax_adjust_label (abfd, sec, internal_relocs, contents, | |
12525 | &relax_blank_list, optimize, opt_size)) | |
12526 | goto error_return; | |
12527 | } | |
12528 | ||
12529 | /* It doesn't matter optimize_for_space_no_align anymore. | |
35c08157 KLC |
12530 | If object file is assembled with flag '-Os', |
12531 | the we don't adjust jump-destination on 4-byte boundary. */ | |
12532 | ||
12533 | if (relax_blank_list) | |
12534 | { | |
12535 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
12536 | relax_blank_list = NULL; | |
12537 | } | |
12538 | ||
535b785f | 12539 | if (!*again) |
35c08157 KLC |
12540 | { |
12541 | /* Closing the section, so we don't relax it anymore. */ | |
12542 | bfd_vma sec_size_align; | |
12543 | Elf_Internal_Rela *tmp_rel; | |
12544 | ||
12545 | /* Pad to alignment boundary. Only handle current section alignment. */ | |
609332f1 NC |
12546 | sec_size_align = (sec->size + (~((-1U) << sec->alignment_power))) |
12547 | & ((-1U) << sec->alignment_power); | |
35c08157 KLC |
12548 | if ((sec_size_align - sec->size) & 0x2) |
12549 | { | |
12550 | insn16 = NDS32_NOP16; | |
12551 | bfd_putb16 (insn16, contents + sec->size); | |
12552 | sec->size += 2; | |
12553 | } | |
12554 | ||
12555 | while (sec_size_align != sec->size) | |
12556 | { | |
12557 | insn = NDS32_NOP32; | |
12558 | bfd_putb32 (insn, contents + sec->size); | |
12559 | sec->size += 4; | |
12560 | } | |
12561 | ||
1c8f6a4d KLC |
12562 | tmp_rel = find_relocs_at_address (internal_relocs, internal_relocs, |
12563 | irelend, R_NDS32_RELAX_ENTRY); | |
35c08157 KLC |
12564 | if (tmp_rel != irelend) |
12565 | tmp_rel->r_addend |= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG; | |
12566 | ||
12567 | clean_nds32_elf_blank (); | |
12568 | } | |
12569 | ||
dc1e8a47 | 12570 | finish: |
35c08157 KLC |
12571 | if (internal_relocs != NULL |
12572 | && elf_section_data (sec)->relocs != internal_relocs) | |
12573 | free (internal_relocs); | |
12574 | ||
12575 | if (contents != NULL | |
12576 | && elf_section_data (sec)->this_hdr.contents != contents) | |
12577 | free (contents); | |
12578 | ||
12579 | if (isymbuf != NULL && symtab_hdr->contents != (bfd_byte *) isymbuf) | |
12580 | free (isymbuf); | |
12581 | ||
12582 | return result; | |
12583 | ||
dc1e8a47 | 12584 | error_return: |
35c08157 KLC |
12585 | result = FALSE; |
12586 | goto finish; | |
12587 | } | |
12588 | ||
12589 | static struct bfd_elf_special_section const nds32_elf_special_sections[] = | |
12590 | { | |
12591 | {".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE}, | |
12592 | {".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE}, | |
12593 | {NULL, 0, 0, 0, 0} | |
12594 | }; | |
12595 | ||
bf577467 AM |
12596 | static bfd_boolean |
12597 | nds32_elf_section_flags (const Elf_Internal_Shdr *hdr) | |
12598 | { | |
12599 | const char *name = hdr->bfd_section->name; | |
12600 | ||
12601 | if (strncmp (name, ".sbss", 5) == 0 | |
12602 | || strncmp (name, ".sdata", 6) == 0) | |
12603 | hdr->bfd_section->flags |= SEC_SMALL_DATA; | |
12604 | ||
12605 | return TRUE; | |
12606 | } | |
12607 | ||
35c08157 KLC |
12608 | static bfd_boolean |
12609 | nds32_elf_output_arch_syms (bfd *output_bfd ATTRIBUTE_UNUSED, | |
12610 | struct bfd_link_info *info, | |
12611 | void *finfo ATTRIBUTE_UNUSED, | |
12612 | bfd_boolean (*func) (void *, const char *, | |
12613 | Elf_Internal_Sym *, | |
12614 | asection *, | |
12615 | struct elf_link_hash_entry *) | |
12616 | ATTRIBUTE_UNUSED) | |
12617 | { | |
12618 | FILE *sym_ld_script = NULL; | |
12619 | struct elf_nds32_link_hash_table *table; | |
12620 | ||
12621 | table = nds32_elf_hash_table (info); | |
12622 | sym_ld_script = table->sym_ld_script; | |
12623 | ||
12624 | if (check_start_export_sym) | |
12625 | fprintf (sym_ld_script, "}\n"); | |
12626 | ||
12627 | return TRUE; | |
12628 | } | |
12629 | ||
12630 | static enum elf_reloc_type_class | |
12631 | nds32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
12632 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12633 | const Elf_Internal_Rela *rela) | |
12634 | { | |
12635 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
12636 | { | |
12637 | case R_NDS32_RELATIVE: | |
12638 | return reloc_class_relative; | |
12639 | case R_NDS32_JMP_SLOT: | |
12640 | return reloc_class_plt; | |
12641 | case R_NDS32_COPY: | |
12642 | return reloc_class_copy; | |
12643 | default: | |
12644 | return reloc_class_normal; | |
12645 | } | |
12646 | } | |
12647 | ||
12648 | /* Put target dependent option into info hash table. */ | |
12649 | void | |
12650 | bfd_elf32_nds32_set_target_option (struct bfd_link_info *link_info, | |
12651 | int relax_fp_as_gp, | |
12652 | int eliminate_gc_relocs, | |
fbaf61ad NC |
12653 | FILE * sym_ld_script, |
12654 | int hyper_relax, | |
12655 | int tls_desc_trampoline, | |
12656 | int load_store_relax) | |
35c08157 KLC |
12657 | { |
12658 | struct elf_nds32_link_hash_table *table; | |
12659 | ||
12660 | table = nds32_elf_hash_table (link_info); | |
12661 | if (table == NULL) | |
12662 | return; | |
12663 | ||
12664 | table->relax_fp_as_gp = relax_fp_as_gp; | |
12665 | table->eliminate_gc_relocs = eliminate_gc_relocs; | |
12666 | table->sym_ld_script = sym_ld_script; | |
fbaf61ad NC |
12667 | table->hyper_relax = hyper_relax; |
12668 | table->tls_desc_trampoline = tls_desc_trampoline; | |
35c08157 | 12669 | table ->load_store_relax = load_store_relax; |
35c08157 KLC |
12670 | } |
12671 | \f | |
fbaf61ad | 12672 | |
35c08157 KLC |
12673 | /* These functions and data-structures are used for fp-as-gp |
12674 | optimization. */ | |
12675 | ||
12676 | #define FAG_THRESHOLD 3 /* At least 3 gp-access. */ | |
1c8f6a4d KLC |
12677 | /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between |
12678 | the read-only section and read-write section. */ | |
12679 | #define FAG_WINDOW (508 - 32) | |
35c08157 KLC |
12680 | |
12681 | /* An nds32_fag represent a gp-relative access. | |
12682 | We find best fp-base by using a sliding window | |
12683 | to find a base address which can cover most gp-access. */ | |
12684 | struct nds32_fag | |
12685 | { | |
12686 | struct nds32_fag *next; /* NULL-teminated linked list. */ | |
12687 | bfd_vma addr; /* The address of this fag. */ | |
12688 | Elf_Internal_Rela **relas; /* The relocations associated with this fag. | |
12689 | It is used for applying FP7U2_FLAG. */ | |
12690 | int count; /* How many times this address is referred. | |
12691 | There should be exactly `count' relocations | |
12692 | in relas. */ | |
12693 | int relas_capcity; /* The buffer size of relas. | |
12694 | We use an array instead of linked-list, | |
12695 | and realloc is used to adjust buffer size. */ | |
12696 | }; | |
12697 | ||
12698 | static void | |
12699 | nds32_fag_init (struct nds32_fag *head) | |
12700 | { | |
12701 | memset (head, 0, sizeof (struct nds32_fag)); | |
12702 | } | |
12703 | ||
12704 | static void | |
12705 | nds32_fag_verify (struct nds32_fag *head) | |
12706 | { | |
12707 | struct nds32_fag *iter; | |
12708 | struct nds32_fag *prev; | |
12709 | ||
12710 | prev = NULL; | |
12711 | iter = head->next; | |
12712 | while (iter) | |
12713 | { | |
12714 | if (prev && prev->addr >= iter->addr) | |
12715 | puts ("Bug in fp-as-gp insertion."); | |
12716 | prev = iter; | |
12717 | iter = iter->next; | |
12718 | } | |
12719 | } | |
12720 | ||
12721 | /* Insert a fag in ascending order. | |
12722 | If a fag of the same address already exists, | |
12723 | they are chained by relas array. */ | |
12724 | ||
12725 | static void | |
12726 | nds32_fag_insert (struct nds32_fag *head, bfd_vma addr, | |
12727 | Elf_Internal_Rela * rel) | |
12728 | { | |
12729 | struct nds32_fag *iter; | |
12730 | struct nds32_fag *new_fag; | |
12731 | const int INIT_RELAS_CAP = 4; | |
12732 | ||
12733 | for (iter = head; | |
12734 | iter->next && iter->next->addr <= addr; | |
12735 | iter = iter->next) | |
12736 | /* Find somewhere to insert. */ ; | |
12737 | ||
12738 | /* `iter' will be equal to `head' if the list is empty. */ | |
12739 | if (iter != head && iter->addr == addr) | |
12740 | { | |
12741 | /* The address exists in the list. | |
12742 | Insert `rel' into relocation list, relas. */ | |
12743 | ||
12744 | /* Check whether relas is big enough. */ | |
12745 | if (iter->count >= iter->relas_capcity) | |
12746 | { | |
12747 | iter->relas_capcity *= 2; | |
12748 | iter->relas = bfd_realloc | |
12749 | (iter->relas, iter->relas_capcity * sizeof (void *)); | |
12750 | } | |
12751 | iter->relas[iter->count++] = rel; | |
12752 | return; | |
12753 | } | |
12754 | ||
12755 | /* This is a new address. Create a fag node for it. */ | |
12756 | new_fag = bfd_malloc (sizeof (struct nds32_fag)); | |
12757 | memset (new_fag, 0, sizeof (*new_fag)); | |
12758 | new_fag->addr = addr; | |
12759 | new_fag->count = 1; | |
12760 | new_fag->next = iter->next; | |
12761 | new_fag->relas_capcity = INIT_RELAS_CAP; | |
12762 | new_fag->relas = (Elf_Internal_Rela **) | |
12763 | bfd_malloc (new_fag->relas_capcity * sizeof (void *)); | |
12764 | new_fag->relas[0] = rel; | |
12765 | iter->next = new_fag; | |
12766 | ||
12767 | nds32_fag_verify (head); | |
12768 | } | |
12769 | ||
12770 | static void | |
12771 | nds32_fag_free_list (struct nds32_fag *head) | |
12772 | { | |
12773 | struct nds32_fag *iter; | |
12774 | ||
12775 | iter = head->next; | |
12776 | while (iter) | |
12777 | { | |
12778 | struct nds32_fag *tmp = iter; | |
12779 | iter = iter->next; | |
12780 | free (tmp->relas); | |
12781 | tmp->relas = NULL; | |
12782 | free (tmp); | |
12783 | } | |
12784 | } | |
12785 | ||
35c08157 KLC |
12786 | /* Find the best fp-base address. |
12787 | The relocation associated with that address is returned, | |
12788 | so we can track the symbol instead of a fixed address. | |
12789 | ||
12790 | When relaxation, the address of an datum may change, | |
12791 | because a text section is shrinked, so the data section | |
1c8f6a4d | 12792 | moves forward. If the aligments of text and data section |
35c08157 KLC |
12793 | are different, their distance may change too. |
12794 | Therefore, tracking a fixed address is not appriate. */ | |
12795 | ||
12796 | static int | |
12797 | nds32_fag_find_base (struct nds32_fag *head, struct nds32_fag **bestpp) | |
12798 | { | |
12799 | struct nds32_fag *base; /* First fag in the window. */ | |
12800 | struct nds32_fag *last; /* First fag outside the window. */ | |
12801 | int accu = 0; /* Usage accumulation. */ | |
12802 | struct nds32_fag *best; /* Best fag. */ | |
12803 | int baccu = 0; /* Best accumulation. */ | |
12804 | ||
12805 | /* Use first fag for initial, and find the last fag in the window. | |
12806 | ||
12807 | In each iteration, we could simply subtract previous fag | |
12808 | and accumulate following fags which are inside the window, | |
12809 | untill we each the end. */ | |
12810 | ||
1c8f6a4d KLC |
12811 | if (head->next == NULL) |
12812 | { | |
12813 | *bestpp = NULL; | |
12814 | return 0; | |
12815 | } | |
35c08157 KLC |
12816 | |
12817 | /* Initialize base. */ | |
12818 | base = head->next; | |
12819 | best = base; | |
12820 | for (last = base; | |
12821 | last && last->addr < base->addr + FAG_WINDOW; | |
12822 | last = last->next) | |
12823 | accu += last->count; | |
12824 | ||
12825 | baccu = accu; | |
12826 | ||
12827 | /* Record the best base in each iteration. */ | |
12828 | while (base->next) | |
1c8f6a4d KLC |
12829 | { |
12830 | accu -= base->count; | |
12831 | base = base->next; | |
12832 | /* Account fags in window. */ | |
12833 | for (/* Nothing. */; | |
12834 | last && last->addr < base->addr + FAG_WINDOW; | |
12835 | last = last->next) | |
12836 | accu += last->count; | |
12837 | ||
12838 | /* A better fp-base? */ | |
12839 | if (accu > baccu) | |
12840 | { | |
12841 | best = base; | |
12842 | baccu = accu; | |
12843 | } | |
12844 | } | |
35c08157 KLC |
12845 | |
12846 | if (bestpp) | |
12847 | *bestpp = best; | |
12848 | return baccu; | |
12849 | } | |
12850 | ||
12851 | /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses, | |
12852 | so we can convert it fo fp-relative access later. | |
12853 | `best_fag' is the best fp-base. Only those inside the window | |
12854 | of best_fag is applied the flag. */ | |
12855 | ||
12856 | static bfd_boolean | |
12857 | nds32_fag_mark_relax (struct bfd_link_info *link_info, | |
fbaf61ad | 12858 | asection *sec, struct nds32_fag *best_fag, |
35c08157 KLC |
12859 | Elf_Internal_Rela *internal_relocs, |
12860 | Elf_Internal_Rela *irelend) | |
12861 | { | |
12862 | struct nds32_fag *ifag; | |
12863 | bfd_vma best_fpbase, gp; | |
12864 | bfd *output_bfd; | |
12865 | ||
fbaf61ad | 12866 | output_bfd = sec->output_section->owner; |
35c08157 KLC |
12867 | nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE); |
12868 | best_fpbase = best_fag->addr; | |
12869 | ||
1c8f6a4d KLC |
12870 | if (best_fpbase > gp + sdata_range[1][1] |
12871 | || best_fpbase < gp - sdata_range[1][0]) | |
35c08157 KLC |
12872 | return FALSE; |
12873 | ||
12874 | /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag, | |
12875 | so we know they can be converted to lwi37.fp. */ | |
12876 | for (ifag = best_fag; | |
12877 | ifag && ifag->addr < best_fpbase + FAG_WINDOW; ifag = ifag->next) | |
12878 | { | |
12879 | int i; | |
12880 | ||
12881 | for (i = 0; i < ifag->count; i++) | |
12882 | { | |
12883 | Elf_Internal_Rela *insn16_rel; | |
12884 | Elf_Internal_Rela *fag_rel; | |
12885 | ||
12886 | fag_rel = ifag->relas[i]; | |
12887 | ||
12888 | /* Only if this is within the WINDOWS, FP7U2_FLAG | |
12889 | is applied. */ | |
12890 | ||
12891 | insn16_rel = find_relocs_at_address | |
12892 | (fag_rel, internal_relocs, irelend, R_NDS32_INSN16); | |
12893 | ||
12894 | if (insn16_rel != irelend) | |
12895 | insn16_rel->r_addend = R_NDS32_INSN16_FP7U2_FLAG; | |
12896 | } | |
12897 | } | |
12898 | return TRUE; | |
12899 | } | |
12900 | ||
1c8f6a4d KLC |
12901 | /* Reset INSN16 to clean fp as gp. */ |
12902 | ||
12903 | static void | |
12904 | nds32_fag_unmark_relax (struct nds32_fag *fag, | |
12905 | Elf_Internal_Rela *internal_relocs, | |
12906 | Elf_Internal_Rela *irelend) | |
12907 | { | |
12908 | struct nds32_fag *ifag; | |
12909 | int i; | |
12910 | Elf_Internal_Rela *insn16_rel; | |
12911 | Elf_Internal_Rela *fag_rel; | |
12912 | ||
12913 | for (ifag = fag; ifag; ifag = ifag->next) | |
12914 | { | |
12915 | for (i = 0; i < ifag->count; i++) | |
12916 | { | |
12917 | fag_rel = ifag->relas[i]; | |
12918 | ||
12919 | /* Restore the INSN16 relocation. */ | |
12920 | insn16_rel = find_relocs_at_address | |
12921 | (fag_rel, internal_relocs, irelend, R_NDS32_INSN16); | |
12922 | ||
12923 | if (insn16_rel != irelend) | |
12924 | insn16_rel->r_addend &= ~R_NDS32_INSN16_FP7U2_FLAG; | |
12925 | } | |
12926 | } | |
12927 | } | |
12928 | ||
35c08157 KLC |
12929 | /* This is the main function of fp-as-gp optimization. |
12930 | It should be called by relax_section. */ | |
12931 | ||
12932 | static bfd_boolean | |
12933 | nds32_relax_fp_as_gp (struct bfd_link_info *link_info, | |
12934 | bfd *abfd, asection *sec, | |
12935 | Elf_Internal_Rela *internal_relocs, | |
12936 | Elf_Internal_Rela *irelend, | |
12937 | Elf_Internal_Sym *isymbuf) | |
12938 | { | |
12939 | Elf_Internal_Rela *begin_rel = NULL; | |
12940 | Elf_Internal_Rela *irel; | |
12941 | struct nds32_fag fag_head; | |
12942 | Elf_Internal_Shdr *symtab_hdr; | |
12943 | bfd_byte *contents; | |
1c8f6a4d | 12944 | bfd_boolean ifc_inside = FALSE; |
35c08157 KLC |
12945 | |
12946 | /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */ | |
12947 | ||
12948 | /* Per-function fp-base selection. | |
12949 | 1. Create a list for all the gp-relative access. | |
12950 | 2. Base on those gp-relative address, | |
12951 | find a fp-base which can cover most access. | |
12952 | 3. Use the fp-base for fp-as-gp relaxation. | |
12953 | ||
12954 | NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times), | |
12955 | we should | |
12956 | 1. delete the `la $fp, _FP_BASE_' instruction and | |
12957 | 2. not convert lwi.gp to lwi37.fp. | |
12958 | ||
12959 | To delete the _FP_BASE_ instruction, we simply apply | |
12960 | R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it. | |
12961 | ||
12962 | To suppress the conversion, we simply NOT to apply | |
12963 | R_NDS32_INSN16_FP7U2_FLAG flag. */ | |
12964 | ||
12965 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
12966 | ||
0c4bd9d9 | 12967 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE) |
35c08157 KLC |
12968 | || !nds32_get_local_syms (abfd, sec, &isymbuf)) |
12969 | return FALSE; | |
12970 | ||
12971 | /* Check whether it is worth for fp-as-gp optimization, | |
12972 | i.e., at least 3 gp-load. | |
12973 | ||
12974 | Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT | |
12975 | apply this optimization. */ | |
12976 | ||
12977 | for (irel = internal_relocs; irel < irelend; irel++) | |
12978 | { | |
12979 | /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region. | |
12980 | One we enter the begin of the region, we track all the LW/ST | |
12981 | instructions, so when we leave the region, we try to find | |
12982 | the best fp-base address for those LW/ST instructions. */ | |
12983 | ||
12984 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
12985 | && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
12986 | { | |
12987 | /* Begin of the region. */ | |
12988 | if (begin_rel) | |
695344c0 | 12989 | /* xgettext:c-format */ |
38f14ab8 | 12990 | _bfd_error_handler (_("%pB: nested OMIT_FP in %pA"), abfd, sec); |
35c08157 KLC |
12991 | |
12992 | begin_rel = irel; | |
12993 | nds32_fag_init (&fag_head); | |
1c8f6a4d | 12994 | ifc_inside = FALSE; |
35c08157 KLC |
12995 | } |
12996 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END | |
12997 | && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
12998 | { | |
12999 | int accu; | |
1c8f6a4d | 13000 | struct nds32_fag *best_fag, *tmp_fag; |
35c08157 KLC |
13001 | int dist; |
13002 | ||
13003 | /* End of the region. | |
13004 | Check whether it is worth to do fp-as-gp. */ | |
13005 | ||
13006 | if (begin_rel == NULL) | |
13007 | { | |
695344c0 | 13008 | /* xgettext:c-format */ |
38f14ab8 AM |
13009 | _bfd_error_handler (_("%pB: unmatched OMIT_FP in %pA"), |
13010 | abfd, sec); | |
35c08157 KLC |
13011 | continue; |
13012 | } | |
13013 | ||
13014 | accu = nds32_fag_find_base (&fag_head, &best_fag); | |
13015 | ||
1c8f6a4d KLC |
13016 | /* Clean FP7U2_FLAG because they may set ever. */ |
13017 | tmp_fag = fag_head.next; | |
13018 | nds32_fag_unmark_relax (tmp_fag, internal_relocs, irelend); | |
13019 | ||
35c08157 KLC |
13020 | /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */ |
13021 | if (accu < FAG_THRESHOLD | |
fbaf61ad | 13022 | || !nds32_fag_mark_relax (link_info, sec, best_fag, |
35c08157 KLC |
13023 | internal_relocs, irelend)) |
13024 | { | |
13025 | /* Not worth to do fp-as-gp. */ | |
13026 | begin_rel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG; | |
13027 | begin_rel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG; | |
13028 | irel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG; | |
13029 | irel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG; | |
13030 | nds32_fag_free_list (&fag_head); | |
13031 | begin_rel = NULL; | |
13032 | continue; | |
13033 | } | |
13034 | ||
13035 | /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler, | |
13036 | so we use it to record the distance to the reloction of best | |
13037 | fp-base. */ | |
13038 | dist = best_fag->relas[0] - begin_rel; | |
13039 | BFD_ASSERT (dist > 0 && dist < 0xffffff); | |
13040 | /* Use high 16 bits of addend to record the _FP_BASE_ matched | |
13041 | relocation. And get the base value when relocating. */ | |
1c8f6a4d | 13042 | begin_rel->r_addend &= (0x1 << 16) - 1; |
35c08157 KLC |
13043 | begin_rel->r_addend |= dist << 16; |
13044 | ||
13045 | nds32_fag_free_list (&fag_head); | |
13046 | begin_rel = NULL; | |
13047 | } | |
13048 | ||
1c8f6a4d | 13049 | if (begin_rel == NULL || ifc_inside) |
35c08157 KLC |
13050 | /* Skip if we are not in the region of fp-as-gp. */ |
13051 | continue; | |
13052 | ||
13053 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S2_RELA | |
13054 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA17S2_RELA) | |
13055 | { | |
13056 | bfd_vma addr; | |
13057 | uint32_t insn; | |
13058 | ||
13059 | /* A gp-relative access is found. Insert it to the fag-list. */ | |
13060 | ||
13061 | /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */ | |
13062 | insn = bfd_getb32 (contents + irel->r_offset); | |
13063 | if (!N32_IS_RT3 (insn)) | |
13064 | continue; | |
13065 | ||
13066 | addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
13067 | nds32_fag_insert (&fag_head, addr, irel); | |
13068 | } | |
13069 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA_FP7U2_RELA) | |
13070 | { | |
13071 | begin_rel = NULL; | |
13072 | } | |
1c8f6a4d KLC |
13073 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA |
13074 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_10IFCU_PCREL_RELA) | |
13075 | { | |
13076 | /* Suppress fp as gp when encounter ifc. */ | |
13077 | ifc_inside = TRUE; | |
13078 | } | |
35c08157 KLC |
13079 | } |
13080 | ||
13081 | return TRUE; | |
13082 | } | |
13083 | ||
13084 | /* Remove unused `la $fp, _FD_BASE_' instruction. */ | |
13085 | ||
13086 | static bfd_boolean | |
13087 | nds32_fag_remove_unused_fpbase (bfd *abfd, asection *sec, | |
13088 | Elf_Internal_Rela *internal_relocs, | |
13089 | Elf_Internal_Rela *irelend) | |
13090 | { | |
13091 | Elf_Internal_Rela *irel; | |
13092 | Elf_Internal_Shdr *symtab_hdr; | |
13093 | bfd_byte *contents = NULL; | |
13094 | nds32_elf_blank_t *relax_blank_list = NULL; | |
13095 | bfd_boolean result = TRUE; | |
13096 | bfd_boolean unused_region = FALSE; | |
13097 | ||
13098 | /* | |
fbaf61ad NC |
13099 | NOTE: Disable fp-as-gp if we encounter ifcall relocations: |
13100 | R_NDS32_17IFC_PCREL_RELA | |
13101 | R_NDS32_10IFCU_PCREL_RELA. */ | |
35c08157 KLC |
13102 | |
13103 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
0c4bd9d9 | 13104 | nds32_get_section_contents (abfd, sec, &contents, TRUE); |
35c08157 KLC |
13105 | |
13106 | for (irel = internal_relocs; irel < irelend; irel++) | |
13107 | { | |
13108 | /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP | |
13109 | we marked to in previous pass. | |
13110 | DO NOT scan relocations again, since we've alreadly decided it | |
13111 | and set the flag. */ | |
13112 | const char *syname; | |
13113 | int syndx; | |
13114 | uint32_t insn; | |
13115 | ||
13116 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
13117 | && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG)) | |
13118 | unused_region = TRUE; | |
13119 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END | |
13120 | && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG)) | |
13121 | unused_region = FALSE; | |
13122 | ||
13123 | /* We're not in the region. */ | |
13124 | if (!unused_region) | |
13125 | continue; | |
13126 | ||
13127 | /* _FP_BASE_ must be a GLOBAL symbol. */ | |
13128 | syndx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
13129 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
13130 | continue; | |
13131 | ||
13132 | /* The symbol name must be _FP_BASE_. */ | |
13133 | syname = elf_sym_hashes (abfd)[syndx]->root.root.string; | |
13134 | if (strcmp (syname, FP_BASE_NAME) != 0) | |
13135 | continue; | |
13136 | ||
13137 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA19S0_RELA) | |
13138 | { | |
13139 | /* addi.gp $fp, -256 */ | |
13140 | insn = bfd_getb32 (contents + irel->r_offset); | |
13141 | if (insn != INSN_ADDIGP_TO_FP) | |
13142 | continue; | |
13143 | } | |
13144 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S0_RELA) | |
13145 | { | |
13146 | /* addi $fp, $gp, -256 */ | |
13147 | insn = bfd_getb32 (contents + irel->r_offset); | |
13148 | if (insn != INSN_ADDI_GP_TO_FP) | |
13149 | continue; | |
13150 | } | |
13151 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_20_RELA) | |
13152 | { | |
13153 | /* movi $fp, FP_BASE */ | |
13154 | insn = bfd_getb32 (contents + irel->r_offset); | |
13155 | if (insn != INSN_MOVI_TO_FP) | |
13156 | continue; | |
13157 | } | |
13158 | else | |
13159 | continue; | |
13160 | ||
13161 | /* We got here because a FP_BASE instruction is found. */ | |
13162 | if (!insert_nds32_elf_blank_recalc_total | |
13163 | (&relax_blank_list, irel->r_offset, 4)) | |
13164 | goto error_return; | |
13165 | } | |
13166 | ||
dc1e8a47 | 13167 | finish: |
35c08157 KLC |
13168 | if (relax_blank_list) |
13169 | { | |
13170 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
13171 | relax_blank_list = NULL; | |
13172 | } | |
13173 | return result; | |
13174 | ||
dc1e8a47 | 13175 | error_return: |
35c08157 KLC |
13176 | result = FALSE; |
13177 | goto finish; | |
13178 | } | |
1c8f6a4d KLC |
13179 | |
13180 | /* This is a version of bfd_generic_get_relocated_section_contents. | |
13181 | We need this variety because relaxation will modify the dwarf | |
13182 | infomation. When there is undefined symbol reference error mesage, | |
13183 | linker need to dump line number where the symbol be used. However | |
13184 | the address is be relaxed, it can not get the original dwarf contents. | |
13185 | The variety only modify function call for reading in the section. */ | |
13186 | ||
13187 | static bfd_byte * | |
13188 | nds32_elf_get_relocated_section_contents (bfd *abfd, | |
13189 | struct bfd_link_info *link_info, | |
13190 | struct bfd_link_order *link_order, | |
13191 | bfd_byte *data, | |
13192 | bfd_boolean relocatable, | |
13193 | asymbol **symbols) | |
13194 | { | |
13195 | bfd *input_bfd = link_order->u.indirect.section->owner; | |
13196 | asection *input_section = link_order->u.indirect.section; | |
13197 | long reloc_size; | |
13198 | arelent **reloc_vector; | |
13199 | long reloc_count; | |
13200 | ||
13201 | reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); | |
13202 | if (reloc_size < 0) | |
13203 | return NULL; | |
13204 | ||
13205 | /* Read in the section. */ | |
0c4bd9d9 | 13206 | if (!nds32_get_section_contents (input_bfd, input_section, &data, FALSE)) |
1c8f6a4d KLC |
13207 | return NULL; |
13208 | ||
13209 | if (reloc_size == 0) | |
13210 | return data; | |
13211 | ||
13212 | reloc_vector = (arelent **) bfd_malloc (reloc_size); | |
13213 | if (reloc_vector == NULL) | |
13214 | return NULL; | |
13215 | ||
13216 | reloc_count = bfd_canonicalize_reloc (input_bfd, input_section, | |
13217 | reloc_vector, symbols); | |
13218 | if (reloc_count < 0) | |
13219 | goto error_return; | |
13220 | ||
13221 | if (reloc_count > 0) | |
13222 | { | |
13223 | arelent **parent; | |
13224 | for (parent = reloc_vector; *parent != NULL; parent++) | |
13225 | { | |
13226 | char *error_message = NULL; | |
13227 | asymbol *symbol; | |
13228 | bfd_reloc_status_type r; | |
13229 | ||
13230 | symbol = *(*parent)->sym_ptr_ptr; | |
13231 | if (symbol->section && discarded_section (symbol->section)) | |
13232 | { | |
0930cb30 | 13233 | bfd_vma off; |
1c8f6a4d KLC |
13234 | static reloc_howto_type none_howto |
13235 | = HOWTO (0, 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, | |
13236 | "unused", FALSE, 0, 0, FALSE); | |
13237 | ||
bb294208 AM |
13238 | off = (*parent)->address * OCTETS_PER_BYTE (input_bfd, |
13239 | input_section); | |
0930cb30 AM |
13240 | _bfd_clear_contents ((*parent)->howto, input_bfd, |
13241 | input_section, data, off); | |
1c8f6a4d KLC |
13242 | (*parent)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
13243 | (*parent)->addend = 0; | |
13244 | (*parent)->howto = &none_howto; | |
13245 | r = bfd_reloc_ok; | |
13246 | } | |
13247 | else | |
13248 | r = bfd_perform_relocation (input_bfd, *parent, data, | |
13249 | input_section, | |
13250 | relocatable ? abfd : NULL, | |
13251 | &error_message); | |
13252 | ||
13253 | if (relocatable) | |
13254 | { | |
13255 | asection *os = input_section->output_section; | |
13256 | ||
13257 | /* A partial link, so keep the relocs. */ | |
13258 | os->orelocation[os->reloc_count] = *parent; | |
13259 | os->reloc_count++; | |
13260 | } | |
13261 | ||
13262 | if (r != bfd_reloc_ok) | |
13263 | { | |
13264 | switch (r) | |
13265 | { | |
13266 | case bfd_reloc_undefined: | |
1a72702b AM |
13267 | (*link_info->callbacks->undefined_symbol) |
13268 | (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
13269 | input_bfd, input_section, (*parent)->address, TRUE); | |
1c8f6a4d KLC |
13270 | break; |
13271 | case bfd_reloc_dangerous: | |
13272 | BFD_ASSERT (error_message != NULL); | |
1a72702b AM |
13273 | (*link_info->callbacks->reloc_dangerous) |
13274 | (link_info, error_message, | |
13275 | input_bfd, input_section, (*parent)->address); | |
1c8f6a4d KLC |
13276 | break; |
13277 | case bfd_reloc_overflow: | |
1a72702b AM |
13278 | (*link_info->callbacks->reloc_overflow) |
13279 | (link_info, NULL, | |
13280 | bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
13281 | (*parent)->howto->name, (*parent)->addend, | |
13282 | input_bfd, input_section, (*parent)->address); | |
1c8f6a4d KLC |
13283 | break; |
13284 | case bfd_reloc_outofrange: | |
13285 | /* PR ld/13730: | |
13286 | This error can result when processing some partially | |
13287 | complete binaries. Do not abort, but issue an error | |
13288 | message instead. */ | |
13289 | link_info->callbacks->einfo | |
695344c0 | 13290 | /* xgettext:c-format */ |
c1c8c1ef | 13291 | (_("%X%P: %pB(%pA): relocation \"%pR\" goes out of range\n"), |
1c8f6a4d KLC |
13292 | abfd, input_section, * parent); |
13293 | goto error_return; | |
13294 | ||
13295 | default: | |
13296 | abort (); | |
13297 | break; | |
13298 | } | |
13299 | } | |
13300 | } | |
13301 | } | |
13302 | ||
13303 | free (reloc_vector); | |
13304 | return data; | |
13305 | ||
dc1e8a47 | 13306 | error_return: |
1c8f6a4d KLC |
13307 | free (reloc_vector); |
13308 | return NULL; | |
13309 | } | |
fbaf61ad NC |
13310 | |
13311 | /* Check target symbol. */ | |
13312 | ||
13313 | static bfd_boolean | |
13314 | nds32_elf_is_target_special_symbol (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym) | |
13315 | { | |
13316 | if (!sym || !sym->name || sym->name[0] != '$') | |
13317 | return FALSE; | |
13318 | return TRUE; | |
13319 | } | |
13320 | ||
13321 | /* nds32 find maybe function sym. Ignore target special symbol | |
13322 | first, and then go the general function. */ | |
13323 | ||
13324 | static bfd_size_type | |
13325 | nds32_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
13326 | bfd_vma *code_off) | |
13327 | { | |
13328 | if (nds32_elf_is_target_special_symbol (NULL, (asymbol *) sym)) | |
13329 | return 0; | |
13330 | ||
13331 | return _bfd_elf_maybe_function_sym (sym, sec, code_off); | |
13332 | } | |
35c08157 | 13333 | \f |
35c08157 | 13334 | |
fbaf61ad NC |
13335 | /* Do TLS model conversion. */ |
13336 | ||
13337 | typedef struct relax_group_list_t | |
13338 | { | |
13339 | Elf_Internal_Rela *relo; | |
13340 | struct relax_group_list_t *next; | |
13341 | struct relax_group_list_t *next_sibling; | |
13342 | int id; | |
13343 | } relax_group_list_t; | |
13344 | ||
13345 | int | |
13346 | list_insert (relax_group_list_t *pHead, Elf_Internal_Rela *pElem); | |
13347 | ||
13348 | int | |
13349 | list_insert_sibling (relax_group_list_t *pNode, Elf_Internal_Rela *pElem); | |
13350 | ||
13351 | void | |
13352 | dump_chain (relax_group_list_t *pHead); | |
13353 | ||
13354 | int | |
13355 | list_insert (relax_group_list_t *pHead, Elf_Internal_Rela *pElem) | |
13356 | { | |
13357 | relax_group_list_t *pNext = pHead; | |
13358 | ||
13359 | /* Find place. */ | |
13360 | while (pNext->next) | |
13361 | { | |
13362 | if (pNext->next->id > (int) pElem->r_addend) | |
13363 | break; | |
13364 | ||
13365 | pNext = pNext->next; | |
13366 | } | |
13367 | ||
13368 | /* Insert node. */ | |
13369 | relax_group_list_t *pNew = bfd_malloc (sizeof (relax_group_list_t)); | |
13370 | if (!pNew) | |
13371 | return FALSE; | |
13372 | ||
13373 | relax_group_list_t *tmp = pNext->next; | |
13374 | pNext->next = pNew; | |
13375 | ||
13376 | pNew->id = pElem->r_addend; | |
13377 | pNew->relo = pElem; | |
13378 | pNew->next = tmp; | |
13379 | pNew->next_sibling = NULL; | |
13380 | ||
13381 | return TRUE; | |
13382 | } | |
13383 | ||
13384 | int | |
13385 | list_insert_sibling (relax_group_list_t *pNode, Elf_Internal_Rela *pElem) | |
13386 | { | |
13387 | relax_group_list_t *pNext = pNode; | |
13388 | ||
13389 | /* Find place. */ | |
13390 | while (pNext->next_sibling) | |
13391 | { | |
13392 | pNext = pNext->next_sibling; | |
13393 | } | |
13394 | ||
13395 | /* Insert node. */ | |
13396 | relax_group_list_t *pNew = bfd_malloc (sizeof (relax_group_list_t)); | |
13397 | if (!pNew) | |
13398 | return FALSE; | |
13399 | ||
13400 | relax_group_list_t *tmp = pNext->next_sibling; | |
13401 | pNext->next_sibling = pNew; | |
13402 | ||
13403 | pNew->id = -1; | |
13404 | pNew->relo = pElem; | |
13405 | pNew->next = NULL; | |
13406 | pNew->next_sibling = tmp; | |
13407 | ||
13408 | return TRUE; | |
13409 | } | |
13410 | ||
13411 | void | |
13412 | dump_chain (relax_group_list_t *pHead) | |
13413 | { | |
13414 | relax_group_list_t *pNext = pHead->next; | |
13415 | while (pNext) | |
13416 | { | |
13417 | printf("group %d @ 0x%08x", pNext->id, (unsigned)pNext->relo->r_offset); | |
13418 | relax_group_list_t *pNextSib = pNext->next_sibling; | |
13419 | while (pNextSib) | |
13420 | { | |
13421 | printf(", %d", (unsigned) ELF32_R_TYPE (pNextSib->relo->r_info)); | |
13422 | pNextSib = pNextSib->next_sibling; | |
13423 | } | |
13424 | pNext = pNext->next; | |
13425 | printf("\n"); | |
13426 | } | |
13427 | } | |
13428 | ||
13429 | /* Check R_NDS32_RELAX_GROUP of each section. | |
13430 | There might be multiple sections in one object file. */ | |
13431 | ||
13432 | int | |
13433 | elf32_nds32_check_relax_group (bfd *abfd, asection *asec) | |
13434 | { | |
13435 | elf32_nds32_relax_group_t *relax_group_ptr = | |
13436 | elf32_nds32_relax_group_ptr (abfd); | |
13437 | ||
13438 | int min_id = relax_group_ptr->min_id; | |
13439 | int max_id = relax_group_ptr->max_id; | |
13440 | ||
13441 | Elf_Internal_Rela *rel; | |
13442 | Elf_Internal_Rela *relend; | |
13443 | Elf_Internal_Rela *relocs; | |
13444 | enum elf_nds32_reloc_type rtype; | |
13445 | ||
13446 | do | |
13447 | { | |
13448 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13449 | relocs = _bfd_elf_link_read_relocs (abfd, asec, NULL, NULL, | |
13450 | TRUE /* keep_memory */); | |
13451 | if (relocs == NULL) | |
13452 | break; | |
13453 | ||
13454 | /* Check R_NDS32_RELAX_GROUP. */ | |
13455 | relend = relocs + asec->reloc_count; | |
13456 | for (rel = relocs; rel < relend; rel++) | |
13457 | { | |
13458 | int id; | |
13459 | rtype = ELF32_R_TYPE (rel->r_info); | |
13460 | if (rtype != R_NDS32_RELAX_GROUP) | |
13461 | continue; | |
13462 | ||
13463 | id = rel->r_addend; | |
13464 | if (id < min_id) | |
13465 | min_id = id; | |
13466 | else if (id > max_id) | |
13467 | max_id = id; | |
13468 | } | |
13469 | } | |
13470 | while (FALSE); | |
13471 | ||
13472 | if ((relocs != NULL) && (elf_section_data (asec)->relocs != relocs)) | |
13473 | free (relocs); | |
13474 | ||
13475 | if ((min_id != relax_group_ptr->min_id) | |
13476 | || (max_id != relax_group_ptr->max_id)) | |
13477 | { | |
13478 | relax_group_ptr->count = max_id - min_id + 1; | |
13479 | BFD_ASSERT(min_id <= relax_group_ptr->min_id); | |
13480 | relax_group_ptr->min_id = min_id; | |
13481 | BFD_ASSERT(max_id >= relax_group_ptr->max_id); | |
13482 | relax_group_ptr->max_id = max_id; | |
13483 | } | |
13484 | ||
13485 | return relax_group_ptr->count; | |
13486 | } | |
13487 | ||
13488 | /* Reorder RELAX_GROUP ID when command line option '-r' is applied. */ | |
13489 | struct section_id_list_t *relax_group_section_id_list = NULL; | |
13490 | ||
13491 | struct section_id_list_t * | |
13492 | elf32_nds32_lookup_section_id (int id, struct section_id_list_t **lst_ptr) | |
13493 | { | |
13494 | struct section_id_list_t *result = NULL; | |
13495 | struct section_id_list_t *lst = *lst_ptr; | |
13496 | ||
13497 | if (NULL == lst) | |
13498 | { | |
13499 | result = (struct section_id_list_t *) calloc | |
13500 | (1, sizeof (struct section_id_list_t)); | |
13501 | BFD_ASSERT (result); /* Feed me. */ | |
13502 | result->id = id; | |
13503 | *lst_ptr = result; | |
13504 | } | |
13505 | else | |
13506 | { | |
13507 | struct section_id_list_t *cur = lst; | |
13508 | struct section_id_list_t *prv = NULL; | |
13509 | struct section_id_list_t *sec = NULL; | |
13510 | ||
13511 | while (cur) | |
13512 | { | |
13513 | if (cur->id < id) | |
13514 | { | |
13515 | prv = cur; | |
13516 | cur = cur->next; | |
13517 | continue; | |
13518 | } | |
13519 | ||
13520 | if (cur->id > id) | |
13521 | { | |
13522 | cur = NULL; /* To insert after prv. */ | |
13523 | sec = cur; /* In case prv == NULL. */ | |
13524 | } | |
13525 | ||
13526 | break; | |
13527 | } | |
13528 | ||
13529 | if (NULL == cur) | |
13530 | { | |
13531 | /* Insert after prv. */ | |
13532 | result = (struct section_id_list_t *) calloc | |
13533 | (1, sizeof (struct section_id_list_t)); | |
13534 | BFD_ASSERT (result); /* Feed me. */ | |
13535 | result->id = id; | |
13536 | if (NULL != prv) | |
13537 | { | |
13538 | result->next = prv->next; | |
13539 | prv->next = result; | |
13540 | } | |
13541 | else | |
13542 | { | |
13543 | *lst_ptr = result; | |
13544 | result->next = sec; | |
13545 | } | |
13546 | } | |
13547 | } | |
13548 | ||
13549 | return result; | |
13550 | } | |
13551 | ||
13552 | int | |
13553 | elf32_nds32_unify_relax_group (bfd *abfd, asection *asec) | |
13554 | { | |
13555 | static int next_relax_group_bias = 0; | |
13556 | ||
13557 | elf32_nds32_relax_group_t *relax_group_ptr = | |
13558 | elf32_nds32_relax_group_ptr (abfd); | |
13559 | ||
13560 | bfd_boolean result = TRUE; | |
13561 | Elf_Internal_Rela *rel; | |
13562 | Elf_Internal_Rela *relend; | |
13563 | Elf_Internal_Rela *relocs = NULL; | |
13564 | enum elf_nds32_reloc_type rtype; | |
13565 | struct section_id_list_t *node = NULL; | |
13566 | int count = 0; | |
13567 | ||
13568 | do | |
13569 | { | |
13570 | if (0 == relax_group_ptr->count) | |
13571 | break; | |
13572 | ||
13573 | /* Check if this section has been handled. */ | |
13574 | node = elf32_nds32_lookup_section_id (asec->id, &relax_group_section_id_list); | |
13575 | if (NULL == node) | |
13576 | break; /* Hit, the section id has handled. */ | |
13577 | ||
13578 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13579 | relocs = _bfd_elf_link_read_relocs (abfd, asec, NULL, NULL, | |
13580 | TRUE /* keep_memory */); | |
13581 | if (relocs == NULL) | |
13582 | { | |
13583 | BFD_ASSERT (0); /* feed me */ | |
13584 | break; | |
13585 | } | |
13586 | ||
13587 | /* Allocate group id bias for this bfd! */ | |
13588 | if (0 == relax_group_ptr->init) | |
13589 | { | |
13590 | relax_group_ptr->bias = next_relax_group_bias; | |
13591 | next_relax_group_bias += relax_group_ptr->count; | |
13592 | relax_group_ptr->init = 1; | |
13593 | } | |
13594 | ||
13595 | /* Reorder relax group groups. */ | |
13596 | relend = relocs + asec->reloc_count; | |
13597 | for (rel = relocs; rel < relend; rel++) | |
13598 | { | |
13599 | rtype = ELF32_R_TYPE(rel->r_info); | |
13600 | if (rtype != R_NDS32_RELAX_GROUP) | |
13601 | continue; | |
13602 | ||
13603 | /* Change it. */ | |
13604 | rel->r_addend += relax_group_ptr->bias; | |
13605 | /* Debugging count. */ | |
13606 | count++; | |
13607 | } | |
13608 | } | |
13609 | while (FALSE); | |
13610 | ||
13611 | if (relocs != NULL && elf_section_data (asec)->relocs != relocs) | |
13612 | free (relocs); | |
13613 | ||
13614 | return result; | |
13615 | } | |
13616 | ||
13617 | int | |
13618 | nds32_elf_unify_tls_model (bfd *inbfd, asection *insec, bfd_byte *incontents, | |
13619 | struct bfd_link_info *lnkinfo) | |
13620 | { | |
13621 | bfd_boolean result = TRUE; | |
13622 | Elf_Internal_Rela *irel; | |
13623 | Elf_Internal_Rela *irelend; | |
13624 | Elf_Internal_Rela *internal_relocs; | |
13625 | unsigned long r_symndx; | |
13626 | enum elf_nds32_reloc_type r_type; | |
13627 | ||
13628 | Elf_Internal_Sym *local_syms = NULL; | |
13629 | bfd_byte *contents = NULL; | |
13630 | ||
13631 | relax_group_list_t chain = { .id = -1, .next = NULL, .next_sibling = NULL }; | |
13632 | ||
13633 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (inbfd)->symtab_hdr; | |
13634 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
13635 | sym_hashes = elf_sym_hashes (inbfd); | |
13636 | sym_hashes_end = | |
13637 | sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
13638 | if (!elf_bad_symtab (inbfd)) | |
13639 | sym_hashes_end -= symtab_hdr->sh_info; | |
13640 | ||
13641 | /* Reorder RELAX_GROUP when command line option '-r' is applied. */ | |
13642 | if (bfd_link_relocatable (lnkinfo)) | |
13643 | { | |
13644 | elf32_nds32_unify_relax_group (inbfd, insec); | |
13645 | return result; | |
13646 | } | |
13647 | ||
13648 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13649 | internal_relocs = _bfd_elf_link_read_relocs (inbfd, insec, NULL, NULL, | |
13650 | TRUE /* keep_memory */); | |
13651 | if (internal_relocs == NULL) | |
13652 | goto error_return; | |
13653 | ||
13654 | irelend = internal_relocs + insec->reloc_count; | |
13655 | irel = find_relocs_at_address (internal_relocs, internal_relocs, | |
13656 | irelend, R_NDS32_RELAX_ENTRY); | |
13657 | if (irel == irelend) | |
13658 | goto finish; | |
13659 | ||
13660 | /* Chain/remove groups. */ | |
13661 | for (irel = internal_relocs; irel < irelend; irel++) | |
13662 | { | |
13663 | r_symndx = ELF32_R_SYM (irel->r_info); | |
13664 | r_type = ELF32_R_TYPE (irel->r_info); | |
13665 | if (r_type != R_NDS32_RELAX_GROUP) | |
13666 | continue; | |
13667 | ||
13668 | /* Remove it. */ | |
13669 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_NONE); | |
13670 | /* Chain it now. */ | |
13671 | if (!list_insert (&chain, irel)) | |
13672 | goto error_return; | |
13673 | } | |
13674 | ||
13675 | /* Collect group relocations. */ | |
13676 | /* Presume relocations are sorted. */ | |
13677 | relax_group_list_t *pNext = chain.next; | |
13678 | while (pNext) | |
13679 | { | |
13680 | for (irel = internal_relocs; irel < irelend; irel++) | |
13681 | { | |
13682 | if (irel->r_offset == pNext->relo->r_offset) | |
13683 | { | |
13684 | /* Ignore Non-TLS relocation types. */ | |
13685 | r_type = ELF32_R_TYPE (irel->r_info); | |
13686 | if ((R_NDS32_TLS_LE_HI20 > r_type) | |
13687 | || (R_NDS32_RELAX_ENTRY == r_type)) | |
13688 | continue; | |
13689 | ||
13690 | if (!list_insert_sibling (pNext, irel)) | |
13691 | goto error_return; | |
13692 | } | |
13693 | else if (irel->r_offset > pNext->relo->r_offset) | |
13694 | { | |
13695 | pNext = pNext->next; | |
13696 | if (!pNext) | |
13697 | break; | |
13698 | ||
13699 | bfd_vma current_offset = pNext->relo->r_offset; | |
13700 | if (irel->r_offset > current_offset) | |
13701 | irel = internal_relocs; /* restart from head */ | |
13702 | else | |
13703 | --irel; /* Check current irel again. */ | |
13704 | continue; | |
13705 | } | |
13706 | else | |
13707 | { | |
13708 | /* This shouldn't be reached. */ | |
13709 | } | |
13710 | } | |
13711 | if (pNext) | |
13712 | pNext = pNext->next; | |
13713 | } | |
13714 | ||
13715 | #ifdef DUBUG_VERBOSE | |
13716 | dump_chain(&chain); | |
13717 | #endif | |
13718 | ||
13719 | /* Get symbol table and section content. */ | |
13720 | if (incontents) | |
13721 | contents = incontents; | |
13722 | else if (!nds32_get_section_contents (inbfd, insec, &contents, TRUE) | |
13723 | || !nds32_get_local_syms (inbfd, insec, &local_syms)) | |
13724 | goto error_return; | |
13725 | ||
13726 | char *local_got_tls_type = elf32_nds32_local_got_tls_type (inbfd); | |
13727 | ||
13728 | /* Convert TLS model each group if necessary. */ | |
13729 | pNext = chain.next; | |
13730 | ||
13731 | int cur_grp_id = -1; | |
13732 | int sethi_rt = -1; | |
13733 | int add_rt = -1; | |
13734 | enum elf_nds32_tls_type tls_type, org_tls_type, eff_tls_type; | |
13735 | ||
13736 | tls_type = org_tls_type = eff_tls_type = 0; | |
13737 | ||
13738 | while (pNext) | |
13739 | { | |
13740 | relax_group_list_t *pNextSig = pNext->next_sibling; | |
13741 | while (pNextSig) | |
13742 | { | |
13743 | struct elf_link_hash_entry *h = NULL; | |
13744 | ||
13745 | irel = pNextSig->relo; | |
13746 | r_symndx = ELF32_R_SYM(irel->r_info); | |
13747 | r_type = ELF32_R_TYPE(irel->r_info); | |
13748 | ||
13749 | if (pNext->id != cur_grp_id) | |
13750 | { | |
13751 | cur_grp_id = pNext->id; | |
13752 | org_tls_type = get_tls_type (r_type, NULL); | |
13753 | if (r_symndx >= symtab_hdr->sh_info) | |
13754 | { | |
13755 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
13756 | while (h->root.type == bfd_link_hash_indirect | |
13757 | || h->root.type == bfd_link_hash_warning) | |
13758 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
13759 | tls_type = ((struct elf_nds32_link_hash_entry *) h)->tls_type; | |
13760 | } | |
13761 | else | |
13762 | { | |
13763 | tls_type = local_got_tls_type | |
13764 | ? local_got_tls_type[r_symndx] | |
13765 | : GOT_NORMAL; | |
13766 | } | |
13767 | ||
13768 | eff_tls_type = 1 << (fls (tls_type) - 1); | |
13769 | sethi_rt = N32_RT5(bfd_getb32 (contents + irel->r_offset)); | |
13770 | } | |
13771 | ||
13772 | if (eff_tls_type != org_tls_type) | |
13773 | { | |
13774 | switch (org_tls_type) | |
13775 | { | |
13776 | /* DESC to IEGP/IE/LE. */ | |
13777 | case GOT_TLS_DESC: | |
13778 | switch (eff_tls_type) | |
13779 | { | |
13780 | case GOT_TLS_IE: | |
13781 | switch (r_type) | |
13782 | { | |
13783 | case R_NDS32_TLS_DESC_HI20: | |
13784 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13785 | R_NDS32_TLS_IE_HI20); | |
13786 | break; | |
13787 | case R_NDS32_TLS_DESC_LO12: | |
13788 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13789 | R_NDS32_TLS_IE_LO12); | |
13790 | break; | |
13791 | case R_NDS32_TLS_DESC_ADD: | |
13792 | { | |
13793 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13794 | add_rt = N32_RT5 (insn); | |
13795 | insn = N32_TYPE2 (LWI, add_rt, sethi_rt, 0); | |
13796 | bfd_putb32 (insn, contents + irel->r_offset); | |
13797 | ||
13798 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13799 | } | |
13800 | break; | |
13801 | case R_NDS32_TLS_DESC_FUNC: | |
13802 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13803 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13804 | R_NDS32_RELAX_REMOVE); | |
13805 | break; | |
13806 | case R_NDS32_TLS_DESC_CALL: | |
13807 | { | |
13808 | uint32_t insn = N32_ALU1(ADD, REG_R0, add_rt, | |
13809 | REG_TP); | |
13810 | bfd_putb32 (insn, contents + irel->r_offset); | |
13811 | ||
13812 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13813 | } | |
13814 | break; | |
13815 | case R_NDS32_LOADSTORE: | |
13816 | case R_NDS32_PTR: | |
13817 | case R_NDS32_PTR_RESOLVED: | |
13818 | case R_NDS32_NONE: | |
13819 | case R_NDS32_LABEL: | |
13820 | break; | |
13821 | default: | |
13822 | BFD_ASSERT(0); | |
13823 | break; | |
13824 | } | |
13825 | break; | |
13826 | case GOT_TLS_IEGP: | |
13827 | switch (r_type) | |
13828 | { | |
13829 | case R_NDS32_TLS_DESC_HI20: | |
13830 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13831 | R_NDS32_TLS_IEGP_HI20); | |
13832 | break; | |
13833 | case R_NDS32_TLS_DESC_LO12: | |
13834 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13835 | R_NDS32_TLS_IEGP_LO12); | |
13836 | break; | |
13837 | case R_NDS32_TLS_DESC_ADD: | |
13838 | { | |
13839 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13840 | add_rt = N32_RT5 (insn); | |
13841 | insn = N32_MEM(LW, add_rt, sethi_rt, REG_GP, 0); | |
13842 | bfd_putb32 (insn, contents + irel->r_offset); | |
13843 | ||
13844 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13845 | } | |
13846 | break; | |
13847 | case R_NDS32_TLS_DESC_FUNC: | |
13848 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13849 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13850 | R_NDS32_RELAX_REMOVE); | |
13851 | break; | |
13852 | case R_NDS32_TLS_DESC_CALL: | |
13853 | { | |
13854 | uint32_t insn = N32_ALU1(ADD, REG_R0, add_rt, | |
13855 | REG_TP); | |
13856 | bfd_putb32 (insn, contents + irel->r_offset); | |
13857 | ||
13858 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13859 | } | |
13860 | break; | |
13861 | case R_NDS32_LOADSTORE: | |
13862 | case R_NDS32_PTR: | |
13863 | case R_NDS32_PTR_RESOLVED: | |
13864 | case R_NDS32_NONE: | |
13865 | case R_NDS32_LABEL: | |
13866 | break; | |
13867 | default: | |
13868 | BFD_ASSERT(0); | |
13869 | break; | |
13870 | } | |
13871 | break; | |
13872 | case GOT_TLS_LE: | |
13873 | switch (r_type) | |
13874 | { | |
13875 | case R_NDS32_TLS_DESC_HI20: | |
13876 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13877 | break; | |
13878 | case R_NDS32_TLS_DESC_LO12: | |
13879 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13880 | break; | |
13881 | case R_NDS32_TLS_DESC_ADD: | |
13882 | { | |
13883 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13884 | ||
13885 | add_rt = N32_RT5 (insn); | |
13886 | insn = N32_ALU1 (ADD, REG_R0, sethi_rt, REG_TP); | |
13887 | bfd_putb32 (insn, contents + irel->r_offset); | |
13888 | ||
13889 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_ADD); | |
13890 | } | |
13891 | break; | |
13892 | case R_NDS32_TLS_DESC_FUNC: | |
13893 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13894 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13895 | break; | |
13896 | case R_NDS32_TLS_DESC_CALL: | |
13897 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13898 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13899 | break; | |
13900 | case R_NDS32_LOADSTORE: | |
13901 | case R_NDS32_PTR: | |
13902 | case R_NDS32_PTR_RESOLVED: | |
13903 | case R_NDS32_NONE: | |
13904 | case R_NDS32_LABEL: | |
13905 | break; | |
13906 | default: | |
13907 | BFD_ASSERT(0); | |
13908 | break; | |
13909 | } | |
13910 | break; | |
13911 | default: | |
13912 | break; | |
13913 | } | |
13914 | break; | |
13915 | /* IEGP to IE/LE. */ | |
13916 | case GOT_TLS_IEGP: | |
13917 | switch (eff_tls_type) | |
13918 | { | |
13919 | case GOT_TLS_IE: | |
13920 | switch (r_type) | |
13921 | { | |
13922 | case R_NDS32_TLS_IEGP_HI20: | |
13923 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13924 | R_NDS32_TLS_IE_HI20); | |
13925 | break; | |
13926 | case R_NDS32_TLS_IEGP_LO12: | |
13927 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13928 | R_NDS32_TLS_IE_LO12); | |
13929 | break; | |
13930 | case R_NDS32_PTR_RESOLVED: | |
13931 | { | |
13932 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13933 | ||
13934 | add_rt = N32_RT5 (insn); | |
13935 | insn = N32_TYPE2 (LWI, add_rt, sethi_rt, 0); | |
13936 | bfd_putb32 (insn, contents + irel->r_offset); | |
13937 | } | |
13938 | break; | |
13939 | case R_NDS32_TLS_IEGP_LW: | |
13940 | break; | |
13941 | case R_NDS32_LOADSTORE: | |
13942 | case R_NDS32_PTR: | |
13943 | case R_NDS32_NONE: | |
13944 | case R_NDS32_LABEL: | |
13945 | break; | |
13946 | default: | |
13947 | BFD_ASSERT(0); | |
13948 | break; | |
13949 | } | |
13950 | break; | |
13951 | case GOT_TLS_LE: | |
13952 | switch (r_type) | |
13953 | { | |
13954 | case R_NDS32_TLS_IEGP_HI20: | |
13955 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13956 | break; | |
13957 | case R_NDS32_TLS_IEGP_LO12: | |
13958 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13959 | break; | |
13960 | case R_NDS32_TLS_IEGP_LW: | |
13961 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13962 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13963 | break; | |
13964 | case R_NDS32_LOADSTORE: | |
13965 | case R_NDS32_PTR: | |
13966 | case R_NDS32_NONE: | |
13967 | case R_NDS32_LABEL: | |
13968 | case R_NDS32_PTR_RESOLVED: | |
13969 | break; | |
13970 | default: | |
13971 | BFD_ASSERT(0); | |
13972 | break; | |
13973 | } | |
13974 | break; | |
13975 | default: | |
13976 | break; | |
13977 | } | |
13978 | break; | |
13979 | /* IE to LE. */ | |
13980 | case GOT_TLS_IE: | |
13981 | switch (eff_tls_type) | |
13982 | { | |
13983 | case GOT_TLS_LE: | |
13984 | switch (r_type) | |
13985 | { | |
13986 | case R_NDS32_TLS_IE_HI20: | |
13987 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13988 | break; | |
13989 | case R_NDS32_TLS_IE_LO12S2: | |
13990 | { | |
13991 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13992 | ||
13993 | add_rt = N32_RT5 (insn); | |
13994 | insn = N32_TYPE2 (ORI, add_rt, sethi_rt, 0); | |
13995 | bfd_putb32 (insn, contents + irel->r_offset); | |
13996 | ||
13997 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13998 | } | |
13999 | break; | |
14000 | case R_NDS32_LOADSTORE: | |
14001 | case R_NDS32_PTR: | |
14002 | case R_NDS32_NONE: | |
14003 | case R_NDS32_LABEL: | |
14004 | break; | |
14005 | default: | |
14006 | BFD_ASSERT(0); | |
14007 | break; | |
14008 | } | |
14009 | break; | |
14010 | default: | |
14011 | break; | |
14012 | } | |
14013 | break; | |
14014 | default: | |
14015 | break; | |
14016 | } | |
14017 | } | |
14018 | pNextSig = pNextSig->next_sibling; | |
14019 | } | |
14020 | ||
14021 | #if 1 | |
14022 | pNext = pNext->next; | |
14023 | #else | |
14024 | while (pNext) | |
14025 | { | |
14026 | if (pNext->id != cur_grp_id) | |
14027 | break; | |
14028 | pNext = pNext->next; | |
14029 | } | |
14030 | #endif | |
14031 | } | |
14032 | ||
dc1e8a47 | 14033 | finish: |
fbaf61ad NC |
14034 | if (incontents) |
14035 | contents = NULL; | |
14036 | ||
14037 | if (internal_relocs != NULL | |
14038 | && elf_section_data (insec)->relocs != internal_relocs) | |
14039 | free (internal_relocs); | |
14040 | ||
14041 | if (contents != NULL | |
14042 | && elf_section_data (insec)->this_hdr.contents != contents) | |
14043 | free (contents); | |
14044 | ||
14045 | if (local_syms != NULL && symtab_hdr->contents != (bfd_byte *) local_syms) | |
14046 | free (local_syms); | |
14047 | ||
14048 | if (chain.next) | |
14049 | { | |
14050 | pNext = chain.next; | |
14051 | relax_group_list_t *pDel; | |
14052 | while (pNext) | |
14053 | { | |
14054 | pDel = pNext; | |
14055 | pNext = pNext->next; | |
14056 | free (pDel); | |
14057 | } | |
14058 | } | |
14059 | ||
14060 | return result; | |
14061 | ||
dc1e8a47 | 14062 | error_return: |
fbaf61ad NC |
14063 | result = FALSE; |
14064 | goto finish; | |
14065 | } | |
14066 | ||
14067 | /* End TLS model conversion. */ | |
14068 | ||
35c08157 KLC |
14069 | #define ELF_ARCH bfd_arch_nds32 |
14070 | #define ELF_MACHINE_CODE EM_NDS32 | |
14071 | #define ELF_MAXPAGESIZE 0x1000 | |
07d6d2b8 | 14072 | #define ELF_TARGET_ID NDS32_ELF_DATA |
35c08157 | 14073 | |
6d00b590 | 14074 | #define TARGET_BIG_SYM nds32_elf32_be_vec |
35c08157 | 14075 | #define TARGET_BIG_NAME "elf32-nds32be" |
6d00b590 | 14076 | #define TARGET_LITTLE_SYM nds32_elf32_le_vec |
35c08157 KLC |
14077 | #define TARGET_LITTLE_NAME "elf32-nds32le" |
14078 | ||
14079 | #define elf_info_to_howto nds32_info_to_howto | |
14080 | #define elf_info_to_howto_rel nds32_info_to_howto_rel | |
14081 | ||
14082 | #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create | |
14083 | #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data | |
14084 | #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data | |
14085 | #define bfd_elf32_bfd_relax_section nds32_elf_relax_section | |
14086 | #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags | |
14087 | ||
07d6d2b8 | 14088 | #define bfd_elf32_mkobject nds32_elf_mkobject |
35c08157 KLC |
14089 | #define elf_backend_action_discarded nds32_elf_action_discarded |
14090 | #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook | |
14091 | #define elf_backend_check_relocs nds32_elf_check_relocs | |
14092 | #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol | |
14093 | #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections | |
14094 | #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections | |
14095 | #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol | |
14096 | #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections | |
14097 | #define elf_backend_relocate_section nds32_elf_relocate_section | |
14098 | #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook | |
35c08157 KLC |
14099 | #define elf_backend_grok_prstatus nds32_elf_grok_prstatus |
14100 | #define elf_backend_grok_psinfo nds32_elf_grok_psinfo | |
14101 | #define elf_backend_reloc_type_class nds32_elf_reloc_type_class | |
14102 | #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol | |
14103 | #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook | |
14104 | #define elf_backend_output_arch_syms nds32_elf_output_arch_syms | |
14105 | #define elf_backend_object_p nds32_elf_object_p | |
14106 | #define elf_backend_final_write_processing nds32_elf_final_write_processing | |
14107 | #define elf_backend_special_sections nds32_elf_special_sections | |
bf577467 | 14108 | #define elf_backend_section_flags nds32_elf_section_flags |
1c8f6a4d | 14109 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
07d6d2b8 | 14110 | nds32_elf_get_relocated_section_contents |
fbaf61ad NC |
14111 | #define bfd_elf32_bfd_is_target_special_symbol nds32_elf_is_target_special_symbol |
14112 | #define elf_backend_maybe_function_sym nds32_elf_maybe_function_sym | |
35c08157 KLC |
14113 | |
14114 | #define elf_backend_can_gc_sections 1 | |
14115 | #define elf_backend_can_refcount 1 | |
14116 | #define elf_backend_want_got_plt 1 | |
14117 | #define elf_backend_plt_readonly 1 | |
14118 | #define elf_backend_want_plt_sym 0 | |
14119 | #define elf_backend_got_header_size 12 | |
14120 | #define elf_backend_may_use_rel_p 1 | |
14121 | #define elf_backend_default_use_rela_p 1 | |
14122 | #define elf_backend_may_use_rela_p 1 | |
fbaf61ad | 14123 | #define elf_backend_dtrel_excludes_plt 0 |
35c08157 KLC |
14124 | |
14125 | #include "elf32-target.h" | |
14126 | ||
14127 | #undef ELF_MAXPAGESIZE | |
14128 | #define ELF_MAXPAGESIZE 0x2000 | |
14129 | ||
fbaf61ad | 14130 | #undef TARGET_BIG_SYM |
6d00b590 | 14131 | #define TARGET_BIG_SYM nds32_elf32_linux_be_vec |
fbaf61ad | 14132 | #undef TARGET_BIG_NAME |
35c08157 | 14133 | #define TARGET_BIG_NAME "elf32-nds32be-linux" |
fbaf61ad | 14134 | #undef TARGET_LITTLE_SYM |
6d00b590 | 14135 | #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec |
fbaf61ad | 14136 | #undef TARGET_LITTLE_NAME |
35c08157 | 14137 | #define TARGET_LITTLE_NAME "elf32-nds32le-linux" |
fbaf61ad | 14138 | #undef elf32_bed |
35c08157 KLC |
14139 | #define elf32_bed elf32_nds32_lin_bed |
14140 | ||
14141 | #include "elf32-target.h" |