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 | ||
1c8f6a4d | 202 | /* For checking relocation type. */ |
fbaf61ad NC |
203 | enum elf_nds32_tls_type tls_type; |
204 | ||
205 | int offset_to_gp; | |
35c08157 KLC |
206 | }; |
207 | ||
208 | /* Get the nds32 ELF linker hash table from a link_info structure. */ | |
209 | ||
210 | #define FP_BASE_NAME "_FP_BASE_" | |
211 | static int check_start_export_sym = 0; | |
35c08157 | 212 | |
1c8f6a4d KLC |
213 | /* The offset for executable tls relaxation. */ |
214 | #define TP_OFFSET 0x0 | |
215 | ||
fbaf61ad NC |
216 | typedef struct |
217 | { | |
218 | int min_id; | |
219 | int max_id; | |
220 | int count; | |
221 | int bias; | |
222 | int init; | |
223 | } elf32_nds32_relax_group_t; | |
224 | ||
1c8f6a4d KLC |
225 | struct elf_nds32_obj_tdata |
226 | { | |
227 | struct elf_obj_tdata root; | |
228 | ||
229 | /* tls_type for each local got entry. */ | |
230 | char *local_got_tls_type; | |
fbaf61ad NC |
231 | |
232 | /* GOTPLT entries for TLS descriptors. */ | |
233 | bfd_vma *local_tlsdesc_gotent; | |
234 | ||
235 | /* for R_NDS32_RELAX_GROUP handling. */ | |
236 | elf32_nds32_relax_group_t relax_group; | |
237 | ||
238 | unsigned int hdr_size; | |
239 | int* offset_to_gp; | |
1c8f6a4d KLC |
240 | }; |
241 | ||
242 | #define elf_nds32_tdata(bfd) \ | |
243 | ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any) | |
244 | ||
245 | #define elf32_nds32_local_got_tls_type(bfd) \ | |
246 | (elf_nds32_tdata (bfd)->local_got_tls_type) | |
247 | ||
fbaf61ad NC |
248 | #define elf32_nds32_local_gp_offset(bfd) \ |
249 | (elf_nds32_tdata (bfd)->offset_to_gp) | |
250 | ||
1c8f6a4d KLC |
251 | #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent)) |
252 | ||
fbaf61ad NC |
253 | #define elf32_nds32_relax_group_ptr(bfd) \ |
254 | &(elf_nds32_tdata (bfd)->relax_group) | |
255 | ||
1c8f6a4d KLC |
256 | static bfd_boolean |
257 | nds32_elf_mkobject (bfd *abfd) | |
258 | { | |
259 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_nds32_obj_tdata), | |
260 | NDS32_ELF_DATA); | |
261 | } | |
262 | ||
35c08157 | 263 | /* Relocations used for relocation. */ |
fbaf61ad NC |
264 | /* Define HOWTO2 (for relocation) and HOWTO3 (for relaxation) to |
265 | initialize array nds32_elf_howto_table in any order. The benefit | |
266 | is that we can add any new relocations with any numbers and don't | |
267 | need to fill the gap by lots of EMPTY_HOWTO. */ | |
268 | #define HOWTO2(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ | |
269 | [C] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) | |
270 | ||
35c08157 KLC |
271 | static reloc_howto_type nds32_elf_howto_table[] = |
272 | { | |
273 | /* This reloc does nothing. */ | |
fbaf61ad NC |
274 | HOWTO2 (R_NDS32_NONE, /* type */ |
275 | 0, /* rightshift */ | |
276 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
277 | 32, /* bitsize */ | |
278 | FALSE, /* pc_relative */ | |
279 | 0, /* bitpos */ | |
280 | complain_overflow_bitfield,/* complain_on_overflow */ | |
281 | bfd_elf_generic_reloc, /* special_function */ | |
282 | "R_NDS32_NONE", /* name */ | |
283 | FALSE, /* partial_inplace */ | |
284 | 0, /* src_mask */ | |
285 | 0, /* dst_mask */ | |
286 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
287 | |
288 | /* A 16 bit absolute relocation. */ | |
fbaf61ad NC |
289 | HOWTO2 (R_NDS32_16, /* type */ |
290 | 0, /* rightshift */ | |
291 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
292 | 16, /* bitsize */ | |
293 | FALSE, /* pc_relative */ | |
294 | 0, /* bitpos */ | |
295 | complain_overflow_bitfield,/* complain_on_overflow */ | |
296 | nds32_elf_generic_reloc,/* special_function */ | |
297 | "R_NDS32_16", /* name */ | |
298 | FALSE, /* partial_inplace */ | |
299 | 0xffff, /* src_mask */ | |
300 | 0xffff, /* dst_mask */ | |
301 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
302 | |
303 | /* A 32 bit absolute relocation. */ | |
fbaf61ad NC |
304 | HOWTO2 (R_NDS32_32, /* type */ |
305 | 0, /* rightshift */ | |
306 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
307 | 32, /* bitsize */ | |
308 | FALSE, /* pc_relative */ | |
309 | 0, /* bitpos */ | |
310 | complain_overflow_bitfield,/* complain_on_overflow */ | |
311 | nds32_elf_generic_reloc,/* special_function */ | |
312 | "R_NDS32_32", /* name */ | |
313 | FALSE, /* partial_inplace */ | |
314 | 0xffffffff, /* src_mask */ | |
315 | 0xffffffff, /* dst_mask */ | |
316 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
317 | |
318 | /* A 20 bit address. */ | |
fbaf61ad NC |
319 | HOWTO2 (R_NDS32_20, /* type */ |
320 | 0, /* rightshift */ | |
321 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
322 | 20, /* bitsize */ | |
323 | FALSE, /* pc_relative */ | |
324 | 0, /* bitpos */ | |
325 | complain_overflow_unsigned,/* complain_on_overflow */ | |
326 | nds32_elf_generic_reloc,/* special_function */ | |
327 | "R_NDS32_20", /* name */ | |
328 | FALSE, /* partial_inplace */ | |
329 | 0xfffff, /* src_mask */ | |
330 | 0xfffff, /* dst_mask */ | |
331 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
332 | |
333 | /* An PC Relative 9-bit relocation, shifted by 2. | |
334 | This reloc is complicated because relocations are relative to pc & -4. | |
335 | i.e. branches in the right insn slot use the address of the left insn | |
336 | slot for pc. */ | |
fbaf61ad | 337 | /* It's not clear whether this should have partial_inplace set or not. |
35c08157 KLC |
338 | Branch relaxing in the assembler can store the addend in the insn, |
339 | and if bfd_install_relocation gets called the addend may get added | |
340 | again. */ | |
fbaf61ad NC |
341 | HOWTO2 (R_NDS32_9_PCREL, /* type */ |
342 | 1, /* rightshift */ | |
343 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
344 | 8, /* bitsize */ | |
345 | TRUE, /* pc_relative */ | |
346 | 0, /* bitpos */ | |
347 | complain_overflow_signed,/* complain_on_overflow */ | |
348 | nds32_elf_9_pcrel_reloc,/* special_function */ | |
349 | "R_NDS32_9_PCREL", /* name */ | |
350 | FALSE, /* partial_inplace */ | |
351 | 0xff, /* src_mask */ | |
352 | 0xff, /* dst_mask */ | |
353 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
354 | |
355 | /* A relative 15 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
356 | HOWTO2 (R_NDS32_15_PCREL, /* type */ |
357 | 1, /* rightshift */ | |
358 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
359 | 14, /* bitsize */ | |
360 | TRUE, /* pc_relative */ | |
361 | 0, /* bitpos */ | |
362 | complain_overflow_signed,/* complain_on_overflow */ | |
363 | bfd_elf_generic_reloc, /* special_function */ | |
364 | "R_NDS32_15_PCREL", /* name */ | |
365 | FALSE, /* partial_inplace */ | |
366 | 0x3fff, /* src_mask */ | |
367 | 0x3fff, /* dst_mask */ | |
368 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
369 | |
370 | /* A relative 17 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
371 | HOWTO2 (R_NDS32_17_PCREL, /* type */ |
372 | 1, /* rightshift */ | |
373 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
374 | 16, /* bitsize */ | |
375 | TRUE, /* pc_relative */ | |
376 | 0, /* bitpos */ | |
377 | complain_overflow_signed,/* complain_on_overflow */ | |
378 | bfd_elf_generic_reloc, /* special_function */ | |
379 | "R_NDS32_17_PCREL", /* name */ | |
380 | FALSE, /* partial_inplace */ | |
381 | 0xffff, /* src_mask */ | |
382 | 0xffff, /* dst_mask */ | |
383 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
384 | |
385 | /* A relative 25 bit relocation, right shifted by 1. */ | |
fbaf61ad | 386 | /* It's not clear whether this should have partial_inplace set or not. |
35c08157 KLC |
387 | Branch relaxing in the assembler can store the addend in the insn, |
388 | and if bfd_install_relocation gets called the addend may get added | |
389 | again. */ | |
fbaf61ad NC |
390 | HOWTO2 (R_NDS32_25_PCREL, /* type */ |
391 | 1, /* rightshift */ | |
392 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
393 | 24, /* bitsize */ | |
394 | TRUE, /* pc_relative */ | |
395 | 0, /* bitpos */ | |
396 | complain_overflow_signed,/* complain_on_overflow */ | |
397 | bfd_elf_generic_reloc, /* special_function */ | |
398 | "R_NDS32_25_PCREL", /* name */ | |
399 | FALSE, /* partial_inplace */ | |
400 | 0xffffff, /* src_mask */ | |
401 | 0xffffff, /* dst_mask */ | |
402 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
403 | |
404 | /* High 20 bits of address when lower 12 is or'd in. */ | |
fbaf61ad NC |
405 | HOWTO2 (R_NDS32_HI20, /* type */ |
406 | 12, /* rightshift */ | |
407 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
408 | 20, /* bitsize */ | |
409 | FALSE, /* pc_relative */ | |
410 | 0, /* bitpos */ | |
411 | complain_overflow_dont,/* complain_on_overflow */ | |
412 | nds32_elf_hi20_reloc, /* special_function */ | |
413 | "R_NDS32_HI20", /* name */ | |
414 | FALSE, /* partial_inplace */ | |
415 | 0x000fffff, /* src_mask */ | |
416 | 0x000fffff, /* dst_mask */ | |
417 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
418 | |
419 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
420 | HOWTO2 (R_NDS32_LO12S3, /* type */ |
421 | 3, /* rightshift */ | |
422 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
423 | 9, /* bitsize */ | |
424 | FALSE, /* pc_relative */ | |
425 | 0, /* bitpos */ | |
426 | complain_overflow_dont,/* complain_on_overflow */ | |
427 | nds32_elf_lo12_reloc, /* special_function */ | |
428 | "R_NDS32_LO12S3", /* name */ | |
429 | FALSE, /* partial_inplace */ | |
430 | 0x000001ff, /* src_mask */ | |
431 | 0x000001ff, /* dst_mask */ | |
432 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
433 | |
434 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
435 | HOWTO2 (R_NDS32_LO12S2, /* type */ |
436 | 2, /* rightshift */ | |
437 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
438 | 10, /* bitsize */ | |
439 | FALSE, /* pc_relative */ | |
440 | 0, /* bitpos */ | |
441 | complain_overflow_dont,/* complain_on_overflow */ | |
442 | nds32_elf_lo12_reloc, /* special_function */ | |
443 | "R_NDS32_LO12S2", /* name */ | |
444 | FALSE, /* partial_inplace */ | |
445 | 0x000003ff, /* src_mask */ | |
446 | 0x000003ff, /* dst_mask */ | |
447 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
448 | |
449 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
450 | HOWTO2 (R_NDS32_LO12S1, /* type */ |
451 | 1, /* rightshift */ | |
452 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
453 | 11, /* bitsize */ | |
454 | FALSE, /* pc_relative */ | |
455 | 0, /* bitpos */ | |
456 | complain_overflow_dont,/* complain_on_overflow */ | |
457 | nds32_elf_lo12_reloc, /* special_function */ | |
458 | "R_NDS32_LO12S1", /* name */ | |
459 | FALSE, /* partial_inplace */ | |
460 | 0x000007ff, /* src_mask */ | |
461 | 0x000007ff, /* dst_mask */ | |
462 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
463 | |
464 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
465 | HOWTO2 (R_NDS32_LO12S0, /* type */ |
466 | 0, /* rightshift */ | |
467 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
468 | 12, /* bitsize */ | |
469 | FALSE, /* pc_relative */ | |
470 | 0, /* bitpos */ | |
471 | complain_overflow_dont,/* complain_on_overflow */ | |
472 | nds32_elf_lo12_reloc, /* special_function */ | |
473 | "R_NDS32_LO12S0", /* name */ | |
474 | FALSE, /* partial_inplace */ | |
475 | 0x00000fff, /* src_mask */ | |
476 | 0x00000fff, /* dst_mask */ | |
477 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
478 | |
479 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
480 | HOWTO2 (R_NDS32_SDA15S3, /* type */ |
481 | 3, /* rightshift */ | |
482 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
483 | 15, /* bitsize */ | |
484 | FALSE, /* pc_relative */ | |
485 | 0, /* bitpos */ | |
486 | complain_overflow_signed,/* complain_on_overflow */ | |
487 | nds32_elf_sda15_reloc, /* special_function */ | |
488 | "R_NDS32_SDA15S3", /* name */ | |
489 | FALSE, /* partial_inplace */ | |
490 | 0x00007fff, /* src_mask */ | |
491 | 0x00007fff, /* dst_mask */ | |
492 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
493 | |
494 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
495 | HOWTO2 (R_NDS32_SDA15S2, /* type */ |
496 | 2, /* rightshift */ | |
497 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
498 | 15, /* bitsize */ | |
499 | FALSE, /* pc_relative */ | |
500 | 0, /* bitpos */ | |
501 | complain_overflow_signed,/* complain_on_overflow */ | |
502 | nds32_elf_sda15_reloc, /* special_function */ | |
503 | "R_NDS32_SDA15S2", /* name */ | |
504 | FALSE, /* partial_inplace */ | |
505 | 0x00007fff, /* src_mask */ | |
506 | 0x00007fff, /* dst_mask */ | |
507 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
508 | |
509 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
510 | HOWTO2 (R_NDS32_SDA15S1, /* type */ |
511 | 1, /* rightshift */ | |
512 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
513 | 15, /* bitsize */ | |
514 | FALSE, /* pc_relative */ | |
515 | 0, /* bitpos */ | |
516 | complain_overflow_signed,/* complain_on_overflow */ | |
517 | nds32_elf_sda15_reloc, /* special_function */ | |
518 | "R_NDS32_SDA15S1", /* name */ | |
519 | FALSE, /* partial_inplace */ | |
520 | 0x00007fff, /* src_mask */ | |
521 | 0x00007fff, /* dst_mask */ | |
522 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
523 | |
524 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
525 | HOWTO2 (R_NDS32_SDA15S0, /* type */ |
526 | 0, /* rightshift */ | |
527 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
528 | 15, /* bitsize */ | |
529 | FALSE, /* pc_relative */ | |
530 | 0, /* bitpos */ | |
531 | complain_overflow_signed,/* complain_on_overflow */ | |
532 | nds32_elf_sda15_reloc, /* special_function */ | |
533 | "R_NDS32_SDA15S0", /* name */ | |
534 | FALSE, /* partial_inplace */ | |
535 | 0x00007fff, /* src_mask */ | |
536 | 0x00007fff, /* dst_mask */ | |
537 | FALSE), /* pcrel_offset */ | |
538 | ||
539 | /* GNU extension to record C++ vtable hierarchy */ | |
540 | HOWTO2 (R_NDS32_GNU_VTINHERIT,/* type */ | |
541 | 0, /* rightshift */ | |
542 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
543 | 0, /* bitsize */ | |
544 | FALSE, /* pc_relative */ | |
545 | 0, /* bitpos */ | |
546 | complain_overflow_dont,/* complain_on_overflow */ | |
547 | NULL, /* special_function */ | |
548 | "R_NDS32_GNU_VTINHERIT",/* name */ | |
549 | FALSE, /* partial_inplace */ | |
550 | 0, /* src_mask */ | |
551 | 0, /* dst_mask */ | |
552 | FALSE), /* pcrel_offset */ | |
553 | ||
554 | /* GNU extension to record C++ vtable member usage */ | |
555 | HOWTO2 (R_NDS32_GNU_VTENTRY, /* type */ | |
556 | 0, /* rightshift */ | |
557 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
558 | 0, /* bitsize */ | |
559 | FALSE, /* pc_relative */ | |
560 | 0, /* bitpos */ | |
561 | complain_overflow_dont,/* complain_on_overflow */ | |
562 | _bfd_elf_rel_vtable_reloc_fn,/* special_function */ | |
563 | "R_NDS32_GNU_VTENTRY", /* name */ | |
564 | FALSE, /* partial_inplace */ | |
565 | 0, /* src_mask */ | |
566 | 0, /* dst_mask */ | |
567 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
568 | |
569 | /* A 16 bit absolute relocation. */ | |
fbaf61ad NC |
570 | HOWTO2 (R_NDS32_16_RELA, /* type */ |
571 | 0, /* rightshift */ | |
572 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
573 | 16, /* bitsize */ | |
574 | FALSE, /* pc_relative */ | |
575 | 0, /* bitpos */ | |
576 | complain_overflow_bitfield,/* complain_on_overflow */ | |
577 | bfd_elf_generic_reloc, /* special_function */ | |
578 | "R_NDS32_16_RELA", /* name */ | |
579 | FALSE, /* partial_inplace */ | |
580 | 0xffff, /* src_mask */ | |
581 | 0xffff, /* dst_mask */ | |
582 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
583 | |
584 | /* A 32 bit absolute relocation. */ | |
fbaf61ad NC |
585 | HOWTO2 (R_NDS32_32_RELA, /* type */ |
586 | 0, /* rightshift */ | |
587 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
588 | 32, /* bitsize */ | |
589 | FALSE, /* pc_relative */ | |
590 | 0, /* bitpos */ | |
591 | complain_overflow_bitfield,/* complain_on_overflow */ | |
592 | bfd_elf_generic_reloc, /* special_function */ | |
593 | "R_NDS32_32_RELA", /* name */ | |
594 | FALSE, /* partial_inplace */ | |
595 | 0xffffffff, /* src_mask */ | |
596 | 0xffffffff, /* dst_mask */ | |
597 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
598 | |
599 | /* A 20 bit address. */ | |
fbaf61ad NC |
600 | HOWTO2 (R_NDS32_20_RELA, /* type */ |
601 | 0, /* rightshift */ | |
602 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
603 | 20, /* bitsize */ | |
604 | FALSE, /* pc_relative */ | |
605 | 0, /* bitpos */ | |
606 | complain_overflow_signed,/* complain_on_overflow */ | |
607 | bfd_elf_generic_reloc, /* special_function */ | |
608 | "R_NDS32_20_RELA", /* name */ | |
609 | FALSE, /* partial_inplace */ | |
610 | 0xfffff, /* src_mask */ | |
611 | 0xfffff, /* dst_mask */ | |
612 | FALSE), /* pcrel_offset */ | |
613 | ||
614 | HOWTO2 (R_NDS32_9_PCREL_RELA, /* type */ | |
615 | 1, /* rightshift */ | |
616 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
617 | 8, /* bitsize */ | |
618 | TRUE, /* pc_relative */ | |
619 | 0, /* bitpos */ | |
620 | complain_overflow_signed,/* complain_on_overflow */ | |
621 | bfd_elf_generic_reloc, /* special_function */ | |
622 | "R_NDS32_9_PCREL_RELA",/* name */ | |
623 | FALSE, /* partial_inplace */ | |
624 | 0xff, /* src_mask */ | |
625 | 0xff, /* dst_mask */ | |
626 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
627 | |
628 | /* A relative 15 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
629 | HOWTO2 (R_NDS32_15_PCREL_RELA,/* type */ |
630 | 1, /* rightshift */ | |
631 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
632 | 14, /* bitsize */ | |
633 | TRUE, /* pc_relative */ | |
634 | 0, /* bitpos */ | |
635 | complain_overflow_signed,/* complain_on_overflow */ | |
636 | bfd_elf_generic_reloc, /* special_function */ | |
637 | "R_NDS32_15_PCREL_RELA",/* name */ | |
638 | FALSE, /* partial_inplace */ | |
639 | 0x3fff, /* src_mask */ | |
640 | 0x3fff, /* dst_mask */ | |
641 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
642 | |
643 | /* A relative 17 bit relocation, right shifted by 1. */ | |
fbaf61ad NC |
644 | HOWTO2 (R_NDS32_17_PCREL_RELA,/* type */ |
645 | 1, /* rightshift */ | |
646 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
647 | 16, /* bitsize */ | |
648 | TRUE, /* pc_relative */ | |
649 | 0, /* bitpos */ | |
650 | complain_overflow_signed,/* complain_on_overflow */ | |
651 | bfd_elf_generic_reloc, /* special_function */ | |
652 | "R_NDS32_17_PCREL_RELA",/* name */ | |
653 | FALSE, /* partial_inplace */ | |
654 | 0xffff, /* src_mask */ | |
655 | 0xffff, /* dst_mask */ | |
656 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
657 | |
658 | /* A relative 25 bit relocation, right shifted by 2. */ | |
fbaf61ad NC |
659 | HOWTO2 (R_NDS32_25_PCREL_RELA,/* type */ |
660 | 1, /* rightshift */ | |
661 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
662 | 24, /* bitsize */ | |
663 | TRUE, /* pc_relative */ | |
664 | 0, /* bitpos */ | |
665 | complain_overflow_signed,/* complain_on_overflow */ | |
666 | bfd_elf_generic_reloc, /* special_function */ | |
667 | "R_NDS32_25_PCREL_RELA",/* name */ | |
668 | FALSE, /* partial_inplace */ | |
669 | 0xffffff, /* src_mask */ | |
670 | 0xffffff, /* dst_mask */ | |
671 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
672 | |
673 | /* High 20 bits of address when lower 16 is or'd in. */ | |
fbaf61ad NC |
674 | HOWTO2 (R_NDS32_HI20_RELA, /* type */ |
675 | 12, /* rightshift */ | |
676 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
677 | 20, /* bitsize */ | |
678 | FALSE, /* pc_relative */ | |
679 | 0, /* bitpos */ | |
680 | complain_overflow_dont,/* complain_on_overflow */ | |
681 | bfd_elf_generic_reloc, /* special_function */ | |
682 | "R_NDS32_HI20_RELA", /* name */ | |
683 | FALSE, /* partial_inplace */ | |
684 | 0x000fffff, /* src_mask */ | |
685 | 0x000fffff, /* dst_mask */ | |
686 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
687 | |
688 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
689 | HOWTO2 (R_NDS32_LO12S3_RELA, /* type */ |
690 | 3, /* rightshift */ | |
691 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
692 | 9, /* bitsize */ | |
693 | FALSE, /* pc_relative */ | |
694 | 0, /* bitpos */ | |
695 | complain_overflow_dont,/* complain_on_overflow */ | |
696 | bfd_elf_generic_reloc, /* special_function */ | |
697 | "R_NDS32_LO12S3_RELA", /* name */ | |
698 | FALSE, /* partial_inplace */ | |
699 | 0x000001ff, /* src_mask */ | |
700 | 0x000001ff, /* dst_mask */ | |
701 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
702 | |
703 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
704 | HOWTO2 (R_NDS32_LO12S2_RELA, /* type */ |
705 | 2, /* rightshift */ | |
706 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
707 | 10, /* bitsize */ | |
708 | FALSE, /* pc_relative */ | |
709 | 0, /* bitpos */ | |
710 | complain_overflow_dont,/* complain_on_overflow */ | |
711 | bfd_elf_generic_reloc, /* special_function */ | |
712 | "R_NDS32_LO12S2_RELA", /* name */ | |
713 | FALSE, /* partial_inplace */ | |
714 | 0x000003ff, /* src_mask */ | |
715 | 0x000003ff, /* dst_mask */ | |
716 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
717 | |
718 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
719 | HOWTO2 (R_NDS32_LO12S1_RELA, /* type */ |
720 | 1, /* rightshift */ | |
721 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
722 | 11, /* bitsize */ | |
723 | FALSE, /* pc_relative */ | |
724 | 0, /* bitpos */ | |
725 | complain_overflow_dont,/* complain_on_overflow */ | |
726 | bfd_elf_generic_reloc, /* special_function */ | |
727 | "R_NDS32_LO12S1_RELA", /* name */ | |
728 | FALSE, /* partial_inplace */ | |
729 | 0x000007ff, /* src_mask */ | |
730 | 0x000007ff, /* dst_mask */ | |
731 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
732 | |
733 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
734 | HOWTO2 (R_NDS32_LO12S0_RELA, /* type */ |
735 | 0, /* rightshift */ | |
736 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
737 | 12, /* bitsize */ | |
738 | FALSE, /* pc_relative */ | |
739 | 0, /* bitpos */ | |
740 | complain_overflow_dont,/* complain_on_overflow */ | |
741 | bfd_elf_generic_reloc, /* special_function */ | |
742 | "R_NDS32_LO12S0_RELA", /* name */ | |
743 | FALSE, /* partial_inplace */ | |
744 | 0x00000fff, /* src_mask */ | |
745 | 0x00000fff, /* dst_mask */ | |
746 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
747 | |
748 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
749 | HOWTO2 (R_NDS32_SDA15S3_RELA, /* type */ |
750 | 3, /* rightshift */ | |
751 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
752 | 15, /* bitsize */ | |
753 | FALSE, /* pc_relative */ | |
754 | 0, /* bitpos */ | |
755 | complain_overflow_signed,/* complain_on_overflow */ | |
756 | bfd_elf_generic_reloc, /* special_function */ | |
757 | "R_NDS32_SDA15S3_RELA",/* name */ | |
758 | FALSE, /* partial_inplace */ | |
759 | 0x00007fff, /* src_mask */ | |
760 | 0x00007fff, /* dst_mask */ | |
761 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
762 | |
763 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
764 | HOWTO2 (R_NDS32_SDA15S2_RELA, /* type */ |
765 | 2, /* rightshift */ | |
766 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
767 | 15, /* bitsize */ | |
768 | FALSE, /* pc_relative */ | |
769 | 0, /* bitpos */ | |
770 | complain_overflow_signed,/* complain_on_overflow */ | |
771 | bfd_elf_generic_reloc, /* special_function */ | |
772 | "R_NDS32_SDA15S2_RELA",/* name */ | |
773 | FALSE, /* partial_inplace */ | |
774 | 0x00007fff, /* src_mask */ | |
775 | 0x00007fff, /* dst_mask */ | |
776 | FALSE), /* pcrel_offset */ | |
777 | ||
778 | HOWTO2 (R_NDS32_SDA15S1_RELA, /* type */ | |
779 | 1, /* rightshift */ | |
780 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
781 | 15, /* bitsize */ | |
782 | FALSE, /* pc_relative */ | |
783 | 0, /* bitpos */ | |
784 | complain_overflow_signed,/* complain_on_overflow */ | |
785 | bfd_elf_generic_reloc, /* special_function */ | |
786 | "R_NDS32_SDA15S1_RELA",/* name */ | |
787 | FALSE, /* partial_inplace */ | |
788 | 0x00007fff, /* src_mask */ | |
789 | 0x00007fff, /* dst_mask */ | |
790 | FALSE), /* pcrel_offset */ | |
791 | ||
792 | HOWTO2 (R_NDS32_SDA15S0_RELA, /* type */ | |
793 | 0, /* rightshift */ | |
794 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
795 | 15, /* bitsize */ | |
796 | FALSE, /* pc_relative */ | |
797 | 0, /* bitpos */ | |
798 | complain_overflow_signed,/* complain_on_overflow */ | |
799 | bfd_elf_generic_reloc, /* special_function */ | |
800 | "R_NDS32_SDA15S0_RELA",/* name */ | |
801 | FALSE, /* partial_inplace */ | |
802 | 0x00007fff, /* src_mask */ | |
803 | 0x00007fff, /* dst_mask */ | |
804 | FALSE), /* pcrel_offset */ | |
805 | ||
806 | /* GNU extension to record C++ vtable hierarchy */ | |
807 | HOWTO2 (R_NDS32_RELA_GNU_VTINHERIT,/* type */ | |
808 | 0, /* rightshift */ | |
809 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
810 | 0, /* bitsize */ | |
811 | FALSE, /* pc_relative */ | |
812 | 0, /* bitpos */ | |
813 | complain_overflow_dont,/* complain_on_overflow */ | |
814 | NULL, /* special_function */ | |
815 | "R_NDS32_RELA_GNU_VTINHERIT",/* name */ | |
816 | FALSE, /* partial_inplace */ | |
817 | 0, /* src_mask */ | |
818 | 0, /* dst_mask */ | |
819 | FALSE), /* pcrel_offset */ | |
820 | ||
821 | /* GNU extension to record C++ vtable member usage */ | |
822 | HOWTO2 (R_NDS32_RELA_GNU_VTENTRY,/* type */ | |
823 | 0, /* rightshift */ | |
824 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
825 | 0, /* bitsize */ | |
826 | FALSE, /* pc_relative */ | |
827 | 0, /* bitpos */ | |
828 | complain_overflow_dont,/* complain_on_overflow */ | |
829 | _bfd_elf_rel_vtable_reloc_fn,/* special_function */ | |
830 | "R_NDS32_RELA_GNU_VTENTRY",/* name */ | |
831 | FALSE, /* partial_inplace */ | |
832 | 0, /* src_mask */ | |
833 | 0, /* dst_mask */ | |
834 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
835 | |
836 | /* Like R_NDS32_20, but referring to the GOT table entry for | |
837 | the symbol. */ | |
fbaf61ad NC |
838 | HOWTO2 (R_NDS32_GOT20, /* type */ |
839 | 0, /* rightshift */ | |
840 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
841 | 20, /* bitsize */ | |
842 | FALSE, /* pc_relative */ | |
843 | 0, /* bitpos */ | |
844 | complain_overflow_signed,/* complain_on_overflow */ | |
845 | bfd_elf_generic_reloc, /* special_function */ | |
846 | "R_NDS32_GOT20", /* name */ | |
847 | FALSE, /* partial_inplace */ | |
848 | 0xfffff, /* src_mask */ | |
849 | 0xfffff, /* dst_mask */ | |
850 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
851 | |
852 | /* Like R_NDS32_PCREL, but referring to the procedure linkage table | |
853 | entry for the symbol. */ | |
fbaf61ad NC |
854 | HOWTO2 (R_NDS32_25_PLTREL, /* type */ |
855 | 1, /* rightshift */ | |
856 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
857 | 24, /* bitsize */ | |
858 | TRUE, /* pc_relative */ | |
859 | 0, /* bitpos */ | |
860 | complain_overflow_signed,/* complain_on_overflow */ | |
861 | bfd_elf_generic_reloc, /* special_function */ | |
862 | "R_NDS32_25_PLTREL", /* name */ | |
863 | FALSE, /* partial_inplace */ | |
864 | 0xffffff, /* src_mask */ | |
865 | 0xffffff, /* dst_mask */ | |
866 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
867 | |
868 | /* This is used only by the dynamic linker. The symbol should exist | |
869 | both in the object being run and in some shared library. The | |
870 | dynamic linker copies the data addressed by the symbol from the | |
871 | shared library into the object, because the object being | |
872 | run has to have the data at some particular address. */ | |
fbaf61ad NC |
873 | HOWTO2 (R_NDS32_COPY, /* type */ |
874 | 0, /* rightshift */ | |
875 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
876 | 32, /* bitsize */ | |
877 | FALSE, /* pc_relative */ | |
878 | 0, /* bitpos */ | |
879 | complain_overflow_bitfield,/* complain_on_overflow */ | |
880 | bfd_elf_generic_reloc, /* special_function */ | |
881 | "R_NDS32_COPY", /* name */ | |
882 | FALSE, /* partial_inplace */ | |
883 | 0xffffffff, /* src_mask */ | |
884 | 0xffffffff, /* dst_mask */ | |
885 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
886 | |
887 | /* Like R_NDS32_20, but used when setting global offset table | |
888 | entries. */ | |
fbaf61ad NC |
889 | HOWTO2 (R_NDS32_GLOB_DAT, /* type */ |
890 | 0, /* rightshift */ | |
891 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
892 | 32, /* bitsize */ | |
893 | FALSE, /* pc_relative */ | |
894 | 0, /* bitpos */ | |
895 | complain_overflow_bitfield,/* complain_on_overflow */ | |
896 | bfd_elf_generic_reloc, /* special_function */ | |
897 | "R_NDS32_GLOB_DAT", /* name */ | |
898 | FALSE, /* partial_inplace */ | |
899 | 0xffffffff, /* src_mask */ | |
900 | 0xffffffff, /* dst_mask */ | |
901 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
902 | |
903 | /* Marks a procedure linkage table entry for a symbol. */ | |
fbaf61ad NC |
904 | HOWTO2 (R_NDS32_JMP_SLOT, /* type */ |
905 | 0, /* rightshift */ | |
906 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
907 | 32, /* bitsize */ | |
908 | FALSE, /* pc_relative */ | |
909 | 0, /* bitpos */ | |
910 | complain_overflow_bitfield,/* complain_on_overflow */ | |
911 | bfd_elf_generic_reloc, /* special_function */ | |
912 | "R_NDS32_JMP_SLOT", /* name */ | |
913 | FALSE, /* partial_inplace */ | |
914 | 0xffffffff, /* src_mask */ | |
915 | 0xffffffff, /* dst_mask */ | |
916 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
917 | |
918 | /* Used only by the dynamic linker. When the object is run, this | |
919 | longword is set to the load address of the object, plus the | |
920 | addend. */ | |
fbaf61ad NC |
921 | HOWTO2 (R_NDS32_RELATIVE, /* type */ |
922 | 0, /* rightshift */ | |
923 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
924 | 32, /* bitsize */ | |
925 | FALSE, /* pc_relative */ | |
926 | 0, /* bitpos */ | |
927 | complain_overflow_bitfield,/* complain_on_overflow */ | |
928 | bfd_elf_generic_reloc, /* special_function */ | |
929 | "R_NDS32_RELATIVE", /* name */ | |
930 | FALSE, /* partial_inplace */ | |
931 | 0xffffffff, /* src_mask */ | |
932 | 0xffffffff, /* dst_mask */ | |
933 | FALSE), /* pcrel_offset */ | |
934 | ||
935 | HOWTO2 (R_NDS32_GOTOFF, /* type */ | |
936 | 0, /* rightshift */ | |
937 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
938 | 20, /* bitsize */ | |
939 | FALSE, /* pc_relative */ | |
940 | 0, /* bitpos */ | |
941 | complain_overflow_signed,/* complain_on_overflow */ | |
942 | bfd_elf_generic_reloc, /* special_function */ | |
943 | "R_NDS32_GOTOFF", /* name */ | |
944 | FALSE, /* partial_inplace */ | |
945 | 0xfffff, /* src_mask */ | |
946 | 0xfffff, /* dst_mask */ | |
947 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
948 | |
949 | /* An PC Relative 20-bit relocation used when setting PIC offset | |
950 | table register. */ | |
fbaf61ad NC |
951 | HOWTO2 (R_NDS32_GOTPC20, /* type */ |
952 | 0, /* rightshift */ | |
953 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
954 | 20, /* bitsize */ | |
955 | TRUE, /* pc_relative */ | |
956 | 0, /* bitpos */ | |
957 | complain_overflow_signed,/* complain_on_overflow */ | |
958 | bfd_elf_generic_reloc, /* special_function */ | |
959 | "R_NDS32_GOTPC20", /* name */ | |
960 | FALSE, /* partial_inplace */ | |
961 | 0xfffff, /* src_mask */ | |
962 | 0xfffff, /* dst_mask */ | |
963 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
964 | |
965 | /* Like R_NDS32_HI20, but referring to the GOT table entry for | |
966 | the symbol. */ | |
fbaf61ad NC |
967 | HOWTO2 (R_NDS32_GOT_HI20, /* type */ |
968 | 12, /* rightshift */ | |
969 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
970 | 20, /* bitsize */ | |
971 | FALSE, /* pc_relative */ | |
972 | 0, /* bitpos */ | |
973 | complain_overflow_dont,/* complain_on_overflow */ | |
974 | bfd_elf_generic_reloc, /* special_function */ | |
975 | "R_NDS32_GOT_HI20", /* name */ | |
976 | FALSE, /* partial_inplace */ | |
977 | 0x000fffff, /* src_mask */ | |
978 | 0x000fffff, /* dst_mask */ | |
979 | FALSE), /* pcrel_offset */ | |
980 | HOWTO2 (R_NDS32_GOT_LO12, /* type */ | |
981 | 0, /* rightshift */ | |
982 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
983 | 12, /* bitsize */ | |
984 | FALSE, /* pc_relative */ | |
985 | 0, /* bitpos */ | |
986 | complain_overflow_dont,/* complain_on_overflow */ | |
987 | bfd_elf_generic_reloc, /* special_function */ | |
988 | "R_NDS32_GOT_LO12", /* name */ | |
989 | FALSE, /* partial_inplace */ | |
990 | 0x00000fff, /* src_mask */ | |
991 | 0x00000fff, /* dst_mask */ | |
992 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
993 | |
994 | /* An PC Relative relocation used when setting PIC offset table register. | |
995 | Like R_NDS32_HI20, but referring to the GOT table entry for | |
996 | the symbol. */ | |
fbaf61ad NC |
997 | HOWTO2 (R_NDS32_GOTPC_HI20, /* type */ |
998 | 12, /* rightshift */ | |
999 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1000 | 20, /* bitsize */ | |
1001 | FALSE, /* pc_relative */ | |
1002 | 0, /* bitpos */ | |
1003 | complain_overflow_dont,/* complain_on_overflow */ | |
1004 | bfd_elf_generic_reloc, /* special_function */ | |
1005 | "R_NDS32_GOTPC_HI20", /* name */ | |
1006 | FALSE, /* partial_inplace */ | |
1007 | 0x000fffff, /* src_mask */ | |
1008 | 0x000fffff, /* dst_mask */ | |
1009 | TRUE), /* pcrel_offset */ | |
1010 | HOWTO2 (R_NDS32_GOTPC_LO12, /* type */ | |
1011 | 0, /* rightshift */ | |
1012 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1013 | 12, /* bitsize */ | |
1014 | FALSE, /* pc_relative */ | |
1015 | 0, /* bitpos */ | |
1016 | complain_overflow_dont,/* complain_on_overflow */ | |
1017 | bfd_elf_generic_reloc, /* special_function */ | |
1018 | "R_NDS32_GOTPC_LO12", /* name */ | |
1019 | FALSE, /* partial_inplace */ | |
1020 | 0x00000fff, /* src_mask */ | |
1021 | 0x00000fff, /* dst_mask */ | |
1022 | TRUE), /* pcrel_offset */ | |
1023 | ||
1024 | HOWTO2 (R_NDS32_GOTOFF_HI20, /* type */ | |
1025 | 12, /* rightshift */ | |
1026 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1027 | 20, /* bitsize */ | |
1028 | FALSE, /* pc_relative */ | |
1029 | 0, /* bitpos */ | |
1030 | complain_overflow_dont,/* complain_on_overflow */ | |
1031 | bfd_elf_generic_reloc, /* special_function */ | |
1032 | "R_NDS32_GOTOFF_HI20", /* name */ | |
1033 | FALSE, /* partial_inplace */ | |
1034 | 0x000fffff, /* src_mask */ | |
1035 | 0x000fffff, /* dst_mask */ | |
1036 | FALSE), /* pcrel_offset */ | |
1037 | HOWTO2 (R_NDS32_GOTOFF_LO12, /* type */ | |
1038 | 0, /* rightshift */ | |
1039 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1040 | 12, /* bitsize */ | |
1041 | FALSE, /* pc_relative */ | |
1042 | 0, /* bitpos */ | |
1043 | complain_overflow_dont,/* complain_on_overflow */ | |
1044 | bfd_elf_generic_reloc, /* special_function */ | |
1045 | "R_NDS32_GOTOFF_LO12", /* name */ | |
1046 | FALSE, /* partial_inplace */ | |
1047 | 0x00000fff, /* src_mask */ | |
1048 | 0x00000fff, /* dst_mask */ | |
1049 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1050 | |
1051 | /* Alignment hint for relaxable instruction. This is used with | |
1052 | R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2 | |
1053 | in order to make next label aligned on word boundary. */ | |
fbaf61ad NC |
1054 | HOWTO2 (R_NDS32_INSN16, /* type */ |
1055 | 0, /* rightshift */ | |
1056 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1057 | 32, /* bitsize */ | |
1058 | FALSE, /* pc_relative */ | |
1059 | 0, /* bitpos */ | |
1060 | complain_overflow_dont,/* complain_on_overflow */ | |
1061 | nds32_elf_ignore_reloc,/* special_function */ | |
1062 | "R_NDS32_INSN16", /* name */ | |
1063 | FALSE, /* partial_inplace */ | |
1064 | 0x00000fff, /* src_mask */ | |
1065 | 0x00000fff, /* dst_mask */ | |
1066 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1067 | |
1068 | /* Alignment hint for label. */ | |
fbaf61ad NC |
1069 | HOWTO2 (R_NDS32_LABEL, /* type */ |
1070 | 0, /* rightshift */ | |
1071 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1072 | 32, /* bitsize */ | |
1073 | FALSE, /* pc_relative */ | |
1074 | 0, /* bitpos */ | |
1075 | complain_overflow_dont,/* complain_on_overflow */ | |
1076 | nds32_elf_ignore_reloc,/* special_function */ | |
1077 | "R_NDS32_LABEL", /* name */ | |
1078 | FALSE, /* partial_inplace */ | |
1079 | 0xffffffff, /* src_mask */ | |
1080 | 0xffffffff, /* dst_mask */ | |
1081 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1082 | |
1083 | /* Relax hint for unconditional call sequence */ | |
fbaf61ad NC |
1084 | HOWTO2 (R_NDS32_LONGCALL1, /* type */ |
1085 | 0, /* rightshift */ | |
1086 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1087 | 32, /* bitsize */ | |
1088 | FALSE, /* pc_relative */ | |
1089 | 0, /* bitpos */ | |
1090 | complain_overflow_dont,/* complain_on_overflow */ | |
1091 | nds32_elf_ignore_reloc,/* special_function */ | |
1092 | "R_NDS32_LONGCALL1", /* name */ | |
1093 | FALSE, /* partial_inplace */ | |
1094 | 0xffffffff, /* src_mask */ | |
1095 | 0xffffffff, /* dst_mask */ | |
1096 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1097 | |
1098 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1099 | HOWTO2 (R_NDS32_LONGCALL2, /* type */ |
1100 | 0, /* rightshift */ | |
1101 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1102 | 32, /* bitsize */ | |
1103 | FALSE, /* pc_relative */ | |
1104 | 0, /* bitpos */ | |
1105 | complain_overflow_dont,/* complain_on_overflow */ | |
1106 | nds32_elf_ignore_reloc,/* special_function */ | |
1107 | "R_NDS32_LONGCALL2", /* name */ | |
1108 | FALSE, /* partial_inplace */ | |
1109 | 0xffffffff, /* src_mask */ | |
1110 | 0xffffffff, /* dst_mask */ | |
1111 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1112 | |
1113 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1114 | HOWTO2 (R_NDS32_LONGCALL3, /* type */ |
1115 | 0, /* rightshift */ | |
1116 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1117 | 32, /* bitsize */ | |
1118 | FALSE, /* pc_relative */ | |
1119 | 0, /* bitpos */ | |
1120 | complain_overflow_dont,/* complain_on_overflow */ | |
1121 | nds32_elf_ignore_reloc,/* special_function */ | |
1122 | "R_NDS32_LONGCALL3", /* name */ | |
1123 | FALSE, /* partial_inplace */ | |
1124 | 0xffffffff, /* src_mask */ | |
1125 | 0xffffffff, /* dst_mask */ | |
1126 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1127 | |
1128 | /* Relax hint for unconditional branch sequence. */ | |
fbaf61ad NC |
1129 | HOWTO2 (R_NDS32_LONGJUMP1, /* type */ |
1130 | 0, /* rightshift */ | |
1131 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1132 | 32, /* bitsize */ | |
1133 | FALSE, /* pc_relative */ | |
1134 | 0, /* bitpos */ | |
1135 | complain_overflow_dont,/* complain_on_overflow */ | |
1136 | nds32_elf_ignore_reloc,/* special_function */ | |
1137 | "R_NDS32_LONGJUMP1", /* name */ | |
1138 | FALSE, /* partial_inplace */ | |
1139 | 0xffffffff, /* src_mask */ | |
1140 | 0xffffffff, /* dst_mask */ | |
1141 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1142 | |
1143 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1144 | HOWTO2 (R_NDS32_LONGJUMP2, /* type */ |
1145 | 0, /* rightshift */ | |
1146 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1147 | 32, /* bitsize */ | |
1148 | FALSE, /* pc_relative */ | |
1149 | 0, /* bitpos */ | |
1150 | complain_overflow_dont,/* complain_on_overflow */ | |
1151 | nds32_elf_ignore_reloc,/* special_function */ | |
1152 | "R_NDS32_LONGJUMP2", /* name */ | |
1153 | FALSE, /* partial_inplace */ | |
1154 | 0xffffffff, /* src_mask */ | |
1155 | 0xffffffff, /* dst_mask */ | |
1156 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1157 | |
1158 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1159 | HOWTO2 (R_NDS32_LONGJUMP3, /* type */ |
1160 | 0, /* rightshift */ | |
1161 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1162 | 32, /* bitsize */ | |
1163 | FALSE, /* pc_relative */ | |
1164 | 0, /* bitpos */ | |
1165 | complain_overflow_dont,/* complain_on_overflow */ | |
1166 | nds32_elf_ignore_reloc,/* special_function */ | |
1167 | "R_NDS32_LONGJUMP3", /* name */ | |
1168 | FALSE, /* partial_inplace */ | |
1169 | 0xffffffff, /* src_mask */ | |
1170 | 0xffffffff, /* dst_mask */ | |
1171 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1172 | |
1173 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1174 | HOWTO2 (R_NDS32_LOADSTORE, /* type */ |
1175 | 0, /* rightshift */ | |
1176 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1177 | 32, /* bitsize */ | |
1178 | FALSE, /* pc_relative */ | |
1179 | 0, /* bitpos */ | |
1180 | complain_overflow_dont,/* complain_on_overflow */ | |
1181 | nds32_elf_ignore_reloc,/* special_function */ | |
1182 | "R_NDS32_LOADSTORE", /* name */ | |
1183 | FALSE, /* partial_inplace */ | |
1184 | 0xffffffff, /* src_mask */ | |
1185 | 0xffffffff, /* dst_mask */ | |
1186 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1187 | |
1188 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1189 | HOWTO2 (R_NDS32_9_FIXED_RELA, /* type */ |
1190 | 0, /* rightshift */ | |
1191 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1192 | 16, /* bitsize */ | |
1193 | FALSE, /* pc_relative */ | |
1194 | 0, /* bitpos */ | |
1195 | complain_overflow_dont,/* complain_on_overflow */ | |
1196 | nds32_elf_ignore_reloc,/* special_function */ | |
1197 | "R_NDS32_9_FIXED_RELA",/* name */ | |
1198 | FALSE, /* partial_inplace */ | |
1199 | 0x000000ff, /* src_mask */ | |
1200 | 0x000000ff, /* dst_mask */ | |
1201 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1202 | |
1203 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1204 | HOWTO2 (R_NDS32_15_FIXED_RELA,/* type */ |
1205 | 0, /* rightshift */ | |
1206 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1207 | 32, /* bitsize */ | |
1208 | FALSE, /* pc_relative */ | |
1209 | 0, /* bitpos */ | |
1210 | complain_overflow_dont,/* complain_on_overflow */ | |
1211 | nds32_elf_ignore_reloc,/* special_function */ | |
1212 | "R_NDS32_15_FIXED_RELA",/* name */ | |
1213 | FALSE, /* partial_inplace */ | |
1214 | 0x00003fff, /* src_mask */ | |
1215 | 0x00003fff, /* dst_mask */ | |
1216 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1217 | |
1218 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1219 | HOWTO2 (R_NDS32_17_FIXED_RELA,/* type */ |
1220 | 0, /* rightshift */ | |
1221 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1222 | 32, /* bitsize */ | |
1223 | FALSE, /* pc_relative */ | |
1224 | 0, /* bitpos */ | |
1225 | complain_overflow_dont,/* complain_on_overflow */ | |
1226 | nds32_elf_ignore_reloc,/* special_function */ | |
1227 | "R_NDS32_17_FIXED_RELA",/* name */ | |
1228 | FALSE, /* partial_inplace */ | |
1229 | 0x0000ffff, /* src_mask */ | |
1230 | 0x0000ffff, /* dst_mask */ | |
1231 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1232 | |
1233 | /* Relax hint for load/store sequence. */ | |
fbaf61ad NC |
1234 | HOWTO2 (R_NDS32_25_FIXED_RELA,/* type */ |
1235 | 0, /* rightshift */ | |
1236 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1237 | 32, /* bitsize */ | |
1238 | FALSE, /* pc_relative */ | |
1239 | 0, /* bitpos */ | |
1240 | complain_overflow_dont,/* complain_on_overflow */ | |
1241 | nds32_elf_ignore_reloc,/* special_function */ | |
1242 | "R_NDS32_25_FIXED_RELA",/* name */ | |
1243 | FALSE, /* partial_inplace */ | |
1244 | 0x00ffffff, /* src_mask */ | |
1245 | 0x00ffffff, /* dst_mask */ | |
1246 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1247 | |
1248 | /* High 20 bits of PLT symbol offset relative to PC. */ | |
fbaf61ad NC |
1249 | HOWTO2 (R_NDS32_PLTREL_HI20, /* type */ |
1250 | 12, /* rightshift */ | |
1251 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1252 | 20, /* bitsize */ | |
1253 | FALSE, /* pc_relative */ | |
1254 | 0, /* bitpos */ | |
1255 | complain_overflow_dont,/* complain_on_overflow */ | |
1256 | bfd_elf_generic_reloc, /* special_function */ | |
1257 | "R_NDS32_PLTREL_HI20", /* name */ | |
1258 | FALSE, /* partial_inplace */ | |
1259 | 0x000fffff, /* src_mask */ | |
1260 | 0x000fffff, /* dst_mask */ | |
1261 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1262 | |
1263 | /* Low 12 bits of PLT symbol offset relative to PC. */ | |
fbaf61ad NC |
1264 | HOWTO2 (R_NDS32_PLTREL_LO12, /* type */ |
1265 | 0, /* rightshift */ | |
1266 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1267 | 12, /* bitsize */ | |
1268 | FALSE, /* pc_relative */ | |
1269 | 0, /* bitpos */ | |
1270 | complain_overflow_dont,/* complain_on_overflow */ | |
1271 | bfd_elf_generic_reloc, /* special_function */ | |
1272 | "R_NDS32_PLTREL_LO12", /* name */ | |
1273 | FALSE, /* partial_inplace */ | |
1274 | 0x00000fff, /* src_mask */ | |
1275 | 0x00000fff, /* dst_mask */ | |
1276 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1277 | |
1278 | /* High 20 bits of PLT symbol offset relative to GOT (GP). */ | |
fbaf61ad NC |
1279 | HOWTO2 (R_NDS32_PLT_GOTREL_HI20, /* type */ |
1280 | 12, /* rightshift */ | |
1281 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1282 | 20, /* bitsize */ | |
1283 | FALSE, /* pc_relative */ | |
1284 | 0, /* bitpos */ | |
1285 | complain_overflow_dont,/* complain_on_overflow */ | |
1286 | bfd_elf_generic_reloc, /* special_function */ | |
1287 | "R_NDS32_PLT_GOTREL_HI20",/* name */ | |
1288 | FALSE, /* partial_inplace */ | |
1289 | 0x000fffff, /* src_mask */ | |
1290 | 0x000fffff, /* dst_mask */ | |
1291 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1292 | |
1293 | /* Low 12 bits of PLT symbol offset relative to GOT (GP). */ | |
fbaf61ad NC |
1294 | HOWTO2 (R_NDS32_PLT_GOTREL_LO12,/* type */ |
1295 | 0, /* rightshift */ | |
1296 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1297 | 12, /* bitsize */ | |
1298 | FALSE, /* pc_relative */ | |
1299 | 0, /* bitpos */ | |
1300 | complain_overflow_dont,/* complain_on_overflow */ | |
1301 | bfd_elf_generic_reloc, /* special_function */ | |
1302 | "R_NDS32_PLT_GOTREL_LO12",/* name */ | |
1303 | FALSE, /* partial_inplace */ | |
1304 | 0x00000fff, /* src_mask */ | |
1305 | 0x00000fff, /* dst_mask */ | |
1306 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1307 | |
1308 | /* Small data area 12 bits offset. */ | |
fbaf61ad NC |
1309 | HOWTO2 (R_NDS32_SDA12S2_DP_RELA,/* type */ |
1310 | 2, /* rightshift */ | |
1311 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1312 | 12, /* bitsize */ | |
1313 | FALSE, /* pc_relative */ | |
1314 | 0, /* bitpos */ | |
1315 | complain_overflow_signed,/* complain_on_overflow */ | |
1316 | bfd_elf_generic_reloc, /* special_function */ | |
1317 | "R_NDS32_SDA12S2_DP_RELA",/* name */ | |
1318 | FALSE, /* partial_inplace */ | |
1319 | 0x00000fff, /* src_mask */ | |
1320 | 0x00000fff, /* dst_mask */ | |
1321 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1322 | |
1323 | /* Small data area 12 bits offset. */ | |
fbaf61ad NC |
1324 | HOWTO2 (R_NDS32_SDA12S2_SP_RELA,/* type */ |
1325 | 2, /* rightshift */ | |
1326 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1327 | 12, /* bitsize */ | |
1328 | FALSE, /* pc_relative */ | |
1329 | 0, /* bitpos */ | |
1330 | complain_overflow_signed,/* complain_on_overflow */ | |
1331 | bfd_elf_generic_reloc, /* special_function */ | |
1332 | "R_NDS32_SDA12S2_SP_RELA",/* name */ | |
1333 | FALSE, /* partial_inplace */ | |
1334 | 0x00000fff, /* src_mask */ | |
1335 | 0x00000fff, /* dst_mask */ | |
1336 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1337 | /* Lower 12 bits of address. */ |
1338 | ||
fbaf61ad NC |
1339 | HOWTO2 (R_NDS32_LO12S2_DP_RELA, /* type */ |
1340 | 2, /* rightshift */ | |
1341 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1342 | 10, /* bitsize */ | |
1343 | FALSE, /* pc_relative */ | |
1344 | 0, /* bitpos */ | |
1345 | complain_overflow_dont,/* complain_on_overflow */ | |
1346 | bfd_elf_generic_reloc, /* special_function */ | |
1347 | "R_NDS32_LO12S2_DP_RELA",/* name */ | |
1348 | FALSE, /* partial_inplace */ | |
1349 | 0x000003ff, /* src_mask */ | |
1350 | 0x000003ff, /* dst_mask */ | |
1351 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1352 | |
1353 | /* Lower 12 bits of address. */ | |
fbaf61ad NC |
1354 | HOWTO2 (R_NDS32_LO12S2_SP_RELA,/* type */ |
1355 | 2, /* rightshift */ | |
1356 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1357 | 10, /* bitsize */ | |
1358 | FALSE, /* pc_relative */ | |
1359 | 0, /* bitpos */ | |
1360 | complain_overflow_dont,/* complain_on_overflow */ | |
1361 | bfd_elf_generic_reloc, /* special_function */ | |
1362 | "R_NDS32_LO12S2_SP_RELA",/* name */ | |
1363 | FALSE, /* partial_inplace */ | |
1364 | 0x000003ff, /* src_mask */ | |
1365 | 0x000003ff, /* dst_mask */ | |
1366 | FALSE), /* pcrel_offset */ | |
35c08157 | 1367 | /* Lower 12 bits of address. Special identity for or case. */ |
fbaf61ad NC |
1368 | HOWTO2 (R_NDS32_LO12S0_ORI_RELA,/* type */ |
1369 | 0, /* rightshift */ | |
1370 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1371 | 12, /* bitsize */ | |
1372 | FALSE, /* pc_relative */ | |
1373 | 0, /* bitpos */ | |
1374 | complain_overflow_dont,/* complain_on_overflow */ | |
1375 | bfd_elf_generic_reloc, /* special_function */ | |
1376 | "R_NDS32_LO12S0_ORI_RELA",/* name */ | |
1377 | FALSE, /* partial_inplace */ | |
1378 | 0x00000fff, /* src_mask */ | |
1379 | 0x00000fff, /* dst_mask */ | |
1380 | FALSE), /* pcrel_offset */ | |
35c08157 | 1381 | /* Small data area 19 bits offset. */ |
fbaf61ad NC |
1382 | HOWTO2 (R_NDS32_SDA16S3_RELA, /* type */ |
1383 | 3, /* rightshift */ | |
1384 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1385 | 16, /* bitsize */ | |
1386 | FALSE, /* pc_relative */ | |
1387 | 0, /* bitpos */ | |
1388 | complain_overflow_signed,/* complain_on_overflow */ | |
1389 | bfd_elf_generic_reloc, /* special_function */ | |
1390 | "R_NDS32_SDA16S3_RELA",/* name */ | |
1391 | FALSE, /* partial_inplace */ | |
1392 | 0x0000ffff, /* src_mask */ | |
1393 | 0x0000ffff, /* dst_mask */ | |
1394 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1395 | |
1396 | /* Small data area 15 bits offset. */ | |
fbaf61ad NC |
1397 | HOWTO2 (R_NDS32_SDA17S2_RELA, /* type */ |
1398 | 2, /* rightshift */ | |
1399 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1400 | 17, /* bitsize */ | |
1401 | FALSE, /* pc_relative */ | |
1402 | 0, /* bitpos */ | |
1403 | complain_overflow_signed,/* complain_on_overflow */ | |
1404 | bfd_elf_generic_reloc, /* special_function */ | |
1405 | "R_NDS32_SDA17S2_RELA",/* name */ | |
1406 | FALSE, /* partial_inplace */ | |
1407 | 0x0001ffff, /* src_mask */ | |
1408 | 0x0001ffff, /* dst_mask */ | |
1409 | FALSE), /* pcrel_offset */ | |
1410 | ||
1411 | HOWTO2 (R_NDS32_SDA18S1_RELA, /* type */ | |
1412 | 1, /* rightshift */ | |
1413 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1414 | 18, /* bitsize */ | |
1415 | FALSE, /* pc_relative */ | |
1416 | 0, /* bitpos */ | |
1417 | complain_overflow_signed,/* complain_on_overflow */ | |
1418 | bfd_elf_generic_reloc, /* special_function */ | |
1419 | "R_NDS32_SDA18S1_RELA",/* name */ | |
1420 | FALSE, /* partial_inplace */ | |
1421 | 0x0003ffff, /* src_mask */ | |
1422 | 0x0003ffff, /* dst_mask */ | |
1423 | FALSE), /* pcrel_offset */ | |
1424 | ||
1425 | HOWTO2 (R_NDS32_SDA19S0_RELA, /* type */ | |
1426 | 0, /* rightshift */ | |
1427 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1428 | 19, /* bitsize */ | |
1429 | FALSE, /* pc_relative */ | |
1430 | 0, /* bitpos */ | |
1431 | complain_overflow_signed,/* complain_on_overflow */ | |
1432 | bfd_elf_generic_reloc, /* special_function */ | |
1433 | "R_NDS32_SDA19S0_RELA",/* name */ | |
1434 | FALSE, /* partial_inplace */ | |
1435 | 0x0007ffff, /* src_mask */ | |
1436 | 0x0007ffff, /* dst_mask */ | |
1437 | FALSE), /* pcrel_offset */ | |
1438 | HOWTO2 (R_NDS32_DWARF2_OP1_RELA,/* type */ | |
1439 | 0, /* rightshift */ | |
1440 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1441 | 8, /* bitsize */ | |
1442 | FALSE, /* pc_relative */ | |
1443 | 0, /* bitpos */ | |
1444 | complain_overflow_dont,/* complain_on_overflow */ | |
1445 | nds32_elf_ignore_reloc,/* special_function */ | |
1446 | "R_NDS32_DWARF2_OP1_RELA",/* name */ | |
1447 | FALSE, /* partial_inplace */ | |
1448 | 0xff, /* src_mask */ | |
1449 | 0xff, /* dst_mask */ | |
1450 | FALSE), /* pcrel_offset */ | |
1451 | HOWTO2 (R_NDS32_DWARF2_OP2_RELA,/* type */ | |
1452 | 0, /* rightshift */ | |
1453 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1454 | 16, /* bitsize */ | |
1455 | FALSE, /* pc_relative */ | |
1456 | 0, /* bitpos */ | |
1457 | complain_overflow_dont,/* complain_on_overflow */ | |
1458 | nds32_elf_ignore_reloc,/* special_function */ | |
1459 | "R_NDS32_DWARF2_OP2_RELA",/* name */ | |
1460 | FALSE, /* partial_inplace */ | |
1461 | 0xffff, /* src_mask */ | |
1462 | 0xffff, /* dst_mask */ | |
1463 | FALSE), /* pcrel_offset */ | |
1464 | HOWTO2 (R_NDS32_DWARF2_LEB_RELA,/* type */ | |
1465 | 0, /* rightshift */ | |
1466 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1467 | 32, /* bitsize */ | |
1468 | FALSE, /* pc_relative */ | |
1469 | 0, /* bitpos */ | |
1470 | complain_overflow_dont,/* complain_on_overflow */ | |
1471 | nds32_elf_ignore_reloc,/* special_function */ | |
1472 | "R_NDS32_DWARF2_LEB_RELA",/* name */ | |
1473 | FALSE, /* partial_inplace */ | |
1474 | 0xffffffff, /* src_mask */ | |
1475 | 0xffffffff, /* dst_mask */ | |
1476 | FALSE), /* pcrel_offset */ | |
1477 | HOWTO2 (R_NDS32_UPDATE_TA_RELA,/* type */ | |
1478 | 0, /* rightshift */ | |
1479 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1480 | 16, /* bitsize */ | |
1481 | FALSE, /* pc_relative */ | |
1482 | 0, /* bitpos */ | |
1483 | complain_overflow_dont,/* complain_on_overflow */ | |
1484 | nds32_elf_ignore_reloc,/* special_function */ | |
1485 | "R_NDS32_UPDATE_TA_RELA",/* name */ | |
1486 | FALSE, /* partial_inplace */ | |
1487 | 0xffff, /* src_mask */ | |
1488 | 0xffff, /* dst_mask */ | |
1489 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1490 | /* Like R_NDS32_PCREL, but referring to the procedure linkage table |
1491 | entry for the symbol. */ | |
fbaf61ad NC |
1492 | HOWTO2 (R_NDS32_9_PLTREL, /* type */ |
1493 | 1, /* rightshift */ | |
1494 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1495 | 8, /* bitsize */ | |
1496 | TRUE, /* pc_relative */ | |
1497 | 0, /* bitpos */ | |
1498 | complain_overflow_signed,/* complain_on_overflow */ | |
1499 | bfd_elf_generic_reloc, /* special_function */ | |
1500 | "R_NDS32_9_PLTREL", /* name */ | |
1501 | FALSE, /* partial_inplace */ | |
1502 | 0xff, /* src_mask */ | |
1503 | 0xff, /* dst_mask */ | |
1504 | TRUE), /* pcrel_offset */ | |
35c08157 | 1505 | /* Low 20 bits of PLT symbol offset relative to GOT (GP). */ |
fbaf61ad NC |
1506 | HOWTO2 (R_NDS32_PLT_GOTREL_LO20,/* type */ |
1507 | 0, /* rightshift */ | |
1508 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1509 | 20, /* bitsize */ | |
1510 | FALSE, /* pc_relative */ | |
1511 | 0, /* bitpos */ | |
1512 | complain_overflow_dont,/* complain_on_overflow */ | |
1513 | bfd_elf_generic_reloc, /* special_function */ | |
1514 | "R_NDS32_PLT_GOTREL_LO20",/* name */ | |
1515 | FALSE, /* partial_inplace */ | |
1516 | 0x000fffff, /* src_mask */ | |
1517 | 0x000fffff, /* dst_mask */ | |
1518 | FALSE), /* pcrel_offset */ | |
1519 | /* low 15 bits of PLT symbol offset relative to GOT (GP) */ | |
1520 | HOWTO2 (R_NDS32_PLT_GOTREL_LO15,/* type */ | |
1521 | 0, /* rightshift */ | |
1522 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1523 | 15, /* bitsize */ | |
1524 | FALSE, /* pc_relative */ | |
1525 | 0, /* bitpos */ | |
1526 | complain_overflow_dont,/* complain_on_overflow */ | |
1527 | bfd_elf_generic_reloc, /* special_function */ | |
1528 | "R_NDS32_PLT_GOTREL_LO15",/* name */ | |
1529 | FALSE, /* partial_inplace */ | |
1530 | 0x00007fff, /* src_mask */ | |
1531 | 0x00007fff, /* dst_mask */ | |
1532 | FALSE), /* pcrel_offset */ | |
35c08157 | 1533 | /* Low 19 bits of PLT symbol offset relative to GOT (GP). */ |
fbaf61ad NC |
1534 | HOWTO2 (R_NDS32_PLT_GOTREL_LO19,/* type */ |
1535 | 0, /* rightshift */ | |
1536 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1537 | 19, /* bitsize */ | |
1538 | FALSE, /* pc_relative */ | |
1539 | 0, /* bitpos */ | |
1540 | complain_overflow_dont,/* complain_on_overflow */ | |
1541 | bfd_elf_generic_reloc, /* special_function */ | |
1542 | "R_NDS32_PLT_GOTREL_LO19",/* name */ | |
1543 | FALSE, /* partial_inplace */ | |
1544 | 0x0007ffff, /* src_mask */ | |
1545 | 0x0007ffff, /* dst_mask */ | |
1546 | FALSE), /* pcrel_offset */ | |
1547 | HOWTO2 (R_NDS32_GOT_LO15, /* type */ | |
1548 | 0, /* rightshift */ | |
1549 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1550 | 15, /* bitsize */ | |
1551 | FALSE, /* pc_relative */ | |
1552 | 0, /* bitpos */ | |
1553 | complain_overflow_dont,/* complain_on_overflow */ | |
1554 | bfd_elf_generic_reloc, /* special_function */ | |
1555 | "R_NDS32_GOT_LO15", /* name */ | |
1556 | FALSE, /* partial_inplace */ | |
1557 | 0x00007fff, /* src_mask */ | |
1558 | 0x00007fff, /* dst_mask */ | |
1559 | FALSE), /* pcrel_offset */ | |
1560 | HOWTO2 (R_NDS32_GOT_LO19, /* type */ | |
1561 | 0, /* rightshift */ | |
1562 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1563 | 19, /* bitsize */ | |
1564 | FALSE, /* pc_relative */ | |
1565 | 0, /* bitpos */ | |
1566 | complain_overflow_dont,/* complain_on_overflow */ | |
1567 | bfd_elf_generic_reloc, /* special_function */ | |
1568 | "R_NDS32_GOT_LO19", /* name */ | |
1569 | FALSE, /* partial_inplace */ | |
1570 | 0x0007ffff, /* src_mask */ | |
1571 | 0x0007ffff, /* dst_mask */ | |
1572 | FALSE), /* pcrel_offset */ | |
1573 | HOWTO2 (R_NDS32_GOTOFF_LO15, /* type */ | |
1574 | 0, /* rightshift */ | |
1575 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1576 | 15, /* bitsize */ | |
1577 | FALSE, /* pc_relative */ | |
1578 | 0, /* bitpos */ | |
1579 | complain_overflow_dont,/* complain_on_overflow */ | |
1580 | bfd_elf_generic_reloc, /* special_function */ | |
1581 | "R_NDS32_GOTOFF_LO15", /* name */ | |
1582 | FALSE, /* partial_inplace */ | |
1583 | 0x00007fff, /* src_mask */ | |
1584 | 0x00007fff, /* dst_mask */ | |
1585 | FALSE), /* pcrel_offset */ | |
1586 | HOWTO2 (R_NDS32_GOTOFF_LO19, /* type */ | |
1587 | 0, /* rightshift */ | |
1588 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1589 | 19, /* bitsize */ | |
1590 | FALSE, /* pc_relative */ | |
1591 | 0, /* bitpos */ | |
1592 | complain_overflow_dont,/* complain_on_overflow */ | |
1593 | bfd_elf_generic_reloc, /* special_function */ | |
1594 | "R_NDS32_GOTOFF_LO19", /* name */ | |
1595 | FALSE, /* partial_inplace */ | |
1596 | 0x0007ffff, /* src_mask */ | |
1597 | 0x0007ffff, /* dst_mask */ | |
1598 | FALSE), /* pcrel_offset */ | |
35c08157 | 1599 | /* GOT 15 bits offset. */ |
fbaf61ad NC |
1600 | HOWTO2 (R_NDS32_GOT15S2_RELA, /* type */ |
1601 | 2, /* rightshift */ | |
1602 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1603 | 15, /* bitsize */ | |
1604 | FALSE, /* pc_relative */ | |
1605 | 0, /* bitpos */ | |
1606 | complain_overflow_signed,/* complain_on_overflow */ | |
1607 | bfd_elf_generic_reloc, /* special_function */ | |
1608 | "R_NDS32_GOT15S2_RELA",/* name */ | |
1609 | FALSE, /* partial_inplace */ | |
1610 | 0x00007fff, /* src_mask */ | |
1611 | 0x00007fff, /* dst_mask */ | |
1612 | FALSE), /* pcrel_offset */ | |
35c08157 | 1613 | /* GOT 17 bits offset. */ |
fbaf61ad NC |
1614 | HOWTO2 (R_NDS32_GOT17S2_RELA, /* type */ |
1615 | 2, /* rightshift */ | |
1616 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1617 | 17, /* bitsize */ | |
1618 | FALSE, /* pc_relative */ | |
1619 | 0, /* bitpos */ | |
1620 | complain_overflow_signed,/* complain_on_overflow */ | |
1621 | bfd_elf_generic_reloc, /* special_function */ | |
1622 | "R_NDS32_GOT17S2_RELA",/* name */ | |
1623 | FALSE, /* partial_inplace */ | |
1624 | 0x0001ffff, /* src_mask */ | |
1625 | 0x0001ffff, /* dst_mask */ | |
1626 | FALSE), /* pcrel_offset */ | |
35c08157 | 1627 | /* A 5 bit address. */ |
fbaf61ad NC |
1628 | HOWTO2 (R_NDS32_5_RELA, /* type */ |
1629 | 0, /* rightshift */ | |
1630 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1631 | 5, /* bitsize */ | |
1632 | FALSE, /* pc_relative */ | |
1633 | 0, /* bitpos */ | |
1634 | complain_overflow_signed,/* complain_on_overflow */ | |
1635 | bfd_elf_generic_reloc, /* special_function */ | |
1636 | "R_NDS32_5_RELA", /* name */ | |
1637 | FALSE, /* partial_inplace */ | |
1638 | 0x1f, /* src_mask */ | |
1639 | 0x1f, /* dst_mask */ | |
1640 | FALSE), /* pcrel_offset */ | |
1641 | HOWTO2 (R_NDS32_10_UPCREL_RELA,/* type */ | |
1642 | 1, /* rightshift */ | |
1643 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1644 | 9, /* bitsize */ | |
1645 | TRUE, /* pc_relative */ | |
1646 | 0, /* bitpos */ | |
1647 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1648 | bfd_elf_generic_reloc, /* special_function */ | |
1649 | "R_NDS32_10_UPCREL_RELA",/* name */ | |
1650 | FALSE, /* partial_inplace */ | |
1651 | 0x1ff, /* src_mask */ | |
1652 | 0x1ff, /* dst_mask */ | |
1653 | TRUE), /* pcrel_offset */ | |
1654 | HOWTO2 (R_NDS32_SDA_FP7U2_RELA,/* type */ | |
1655 | 2, /* rightshift */ | |
1656 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1657 | 7, /* bitsize */ | |
1658 | FALSE, /* pc_relative */ | |
1659 | 0, /* bitpos */ | |
1660 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1661 | bfd_elf_generic_reloc, /* special_function */ | |
1662 | "R_NDS32_SDA_FP7U2_RELA",/* name */ | |
1663 | FALSE, /* partial_inplace */ | |
1664 | 0x0000007f, /* src_mask */ | |
1665 | 0x0000007f, /* dst_mask */ | |
1666 | FALSE), /* pcrel_offset */ | |
1667 | HOWTO2 (R_NDS32_WORD_9_PCREL_RELA,/* type */ | |
1668 | 1, /* rightshift */ | |
1669 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1670 | 8, /* bitsize */ | |
1671 | TRUE, /* pc_relative */ | |
1672 | 0, /* bitpos */ | |
1673 | complain_overflow_signed,/* complain_on_overflow */ | |
1674 | bfd_elf_generic_reloc, /* special_function */ | |
1675 | "R_NDS32_WORD_9_PCREL_RELA",/* name */ | |
1676 | FALSE, /* partial_inplace */ | |
1677 | 0xff, /* src_mask */ | |
1678 | 0xff, /* dst_mask */ | |
1679 | TRUE), /* pcrel_offset */ | |
1680 | HOWTO2 (R_NDS32_25_ABS_RELA, /* type */ | |
1681 | 1, /* rightshift */ | |
1682 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1683 | 24, /* bitsize */ | |
1684 | FALSE, /* pc_relative */ | |
1685 | 0, /* bitpos */ | |
1686 | complain_overflow_dont,/* complain_on_overflow */ | |
1687 | bfd_elf_generic_reloc, /* special_function */ | |
1688 | "R_NDS32_25_ABS_RELA", /* name */ | |
1689 | FALSE, /* partial_inplace */ | |
1690 | 0xffffff, /* src_mask */ | |
1691 | 0xffffff, /* dst_mask */ | |
1692 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
1693 | |
1694 | /* A relative 17 bit relocation for ifc, right shifted by 1. */ | |
fbaf61ad NC |
1695 | HOWTO2 (R_NDS32_17IFC_PCREL_RELA,/* type */ |
1696 | 1, /* rightshift */ | |
1697 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1698 | 16, /* bitsize */ | |
1699 | TRUE, /* pc_relative */ | |
1700 | 0, /* bitpos */ | |
1701 | complain_overflow_signed,/* complain_on_overflow */ | |
1702 | bfd_elf_generic_reloc, /* special_function */ | |
1703 | "R_NDS32_17IFC_PCREL_RELA",/* name */ | |
1704 | FALSE, /* partial_inplace */ | |
1705 | 0xffff, /* src_mask */ | |
1706 | 0xffff, /* dst_mask */ | |
1707 | TRUE), /* pcrel_offset */ | |
35c08157 KLC |
1708 | |
1709 | /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */ | |
fbaf61ad NC |
1710 | HOWTO2 (R_NDS32_10IFCU_PCREL_RELA,/* type */ |
1711 | 1, /* rightshift */ | |
1712 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1713 | 9, /* bitsize */ | |
1714 | TRUE, /* pc_relative */ | |
1715 | 0, /* bitpos */ | |
1716 | complain_overflow_unsigned,/* complain_on_overflow */ | |
1717 | bfd_elf_generic_reloc, /* special_function */ | |
1718 | "R_NDS32_10IFCU_PCREL_RELA",/* name */ | |
1719 | FALSE, /* partial_inplace */ | |
1720 | 0x1ff, /* src_mask */ | |
1721 | 0x1ff, /* dst_mask */ | |
1722 | TRUE), /* pcrel_offset */ | |
1723 | ||
1724 | /* Like R_NDS32_HI20, but referring to the TLS LE entry for the symbol. */ | |
1725 | HOWTO2 (R_NDS32_TLS_LE_HI20, /* type */ | |
1726 | 12, /* rightshift */ | |
1727 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1728 | 20, /* bitsize */ | |
1729 | FALSE, /* pc_relative */ | |
1730 | 0, /* bitpos */ | |
1731 | complain_overflow_dont,/* complain_on_overflow */ | |
1732 | bfd_elf_generic_reloc, /* special_function */ | |
1733 | "R_NDS32_TLS_LE_HI20", /* name */ | |
1734 | FALSE, /* partial_inplace */ | |
1735 | 0x000fffff, /* src_mask */ | |
1736 | 0x000fffff, /* dst_mask */ | |
1737 | FALSE), /* pcrel_offset */ | |
1738 | ||
1739 | HOWTO2 (R_NDS32_TLS_LE_LO12, /* type */ | |
1740 | 0, /* rightshift */ | |
1741 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1742 | 12, /* bitsize */ | |
1743 | FALSE, /* pc_relative */ | |
1744 | 0, /* bitpos */ | |
1745 | complain_overflow_dont,/* complain_on_overflow */ | |
1746 | bfd_elf_generic_reloc, /* special_function */ | |
1747 | "R_NDS32_TLS_LE_LO12", /* name */ | |
1748 | FALSE, /* partial_inplace */ | |
1749 | 0x00000fff, /* src_mask */ | |
1750 | 0x00000fff, /* dst_mask */ | |
1751 | FALSE), /* pcrel_offset */ | |
1752 | ||
1753 | /* Like R_NDS32_HI20, but referring to the TLS IE entry for the symbol. */ | |
1754 | HOWTO2 (R_NDS32_TLS_IE_HI20, /* type */ | |
1755 | 12, /* rightshift */ | |
1756 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1757 | 20, /* bitsize */ | |
1758 | FALSE, /* pc_relative */ | |
1759 | 0, /* bitpos */ | |
1760 | complain_overflow_dont,/* complain_on_overflow */ | |
1761 | bfd_elf_generic_reloc, /* special_function */ | |
1762 | "R_NDS32_TLS_IE_HI20", /* name */ | |
1763 | FALSE, /* partial_inplace */ | |
1764 | 0x000fffff, /* src_mask */ | |
1765 | 0x000fffff, /* dst_mask */ | |
1766 | FALSE), /* pcrel_offset */ | |
1767 | ||
1768 | HOWTO2 (R_NDS32_TLS_IE_LO12S2,/* type */ | |
1769 | 2, /* rightshift */ | |
1770 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1771 | 10, /* bitsize */ | |
1772 | FALSE, /* pc_relative */ | |
1773 | 0, /* bitpos */ | |
1774 | complain_overflow_dont,/* complain_on_overflow */ | |
1775 | bfd_elf_generic_reloc, /* special_function */ | |
1776 | "R_NDS32_TLS_IE_LO12S2",/* name */ | |
1777 | FALSE, /* partial_inplace */ | |
1778 | 0x000003ff, /* src_mask */ | |
1779 | 0x000003ff, /* dst_mask */ | |
1780 | FALSE), /* pcrel_offset */ | |
1781 | ||
1782 | /* TLS LE TP offset relocation */ | |
1783 | HOWTO2 (R_NDS32_TLS_TPOFF, /* type */ | |
1784 | 0, /* rightshift */ | |
1785 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1786 | 32, /* bitsize */ | |
1787 | FALSE, /* pc_relative */ | |
1788 | 0, /* bitpos */ | |
1789 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1790 | bfd_elf_generic_reloc, /* special_function */ | |
1791 | "R_NDS32_TLS_TPOFF", /* name */ | |
1792 | FALSE, /* partial_inplace */ | |
1793 | 0xffffffff, /* src_mask */ | |
1794 | 0xffffffff, /* dst_mask */ | |
1795 | FALSE), /* pcrel_offset */ | |
1796 | ||
1c8f6a4d | 1797 | /* A 20 bit address. */ |
fbaf61ad NC |
1798 | HOWTO2 (R_NDS32_TLS_LE_20, /* type */ |
1799 | 0, /* rightshift */ | |
1800 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1801 | 20, /* bitsize */ | |
1802 | FALSE, /* pc_relative */ | |
1803 | 0, /* bitpos */ | |
1804 | complain_overflow_signed,/* complain_on_overflow */ | |
1805 | bfd_elf_generic_reloc, /* special_function */ | |
1806 | "R_NDS32_TLS_LE_20", /* name */ | |
1807 | FALSE, /* partial_inplace */ | |
1808 | 0xfffff, /* src_mask */ | |
1809 | 0xfffff, /* dst_mask */ | |
1810 | FALSE), /* pcrel_offset */ | |
1811 | ||
1812 | HOWTO2 (R_NDS32_TLS_LE_15S0, /* type */ | |
1813 | 0, /* rightshift */ | |
1814 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1815 | 15, /* bitsize */ | |
1816 | FALSE, /* pc_relative */ | |
1817 | 0, /* bitpos */ | |
1818 | complain_overflow_signed,/* complain_on_overflow */ | |
1819 | bfd_elf_generic_reloc, /* special_function */ | |
1820 | "R_NDS32_TLS_LE_15S0", /* name */ | |
1821 | FALSE, /* partial_inplace */ | |
1822 | 0x7fff, /* src_mask */ | |
1823 | 0x7fff, /* dst_mask */ | |
1824 | FALSE), /* pcrel_offset */ | |
1825 | HOWTO2 (R_NDS32_TLS_LE_15S1, /* type */ | |
1826 | 1, /* rightshift */ | |
1827 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1828 | 15, /* bitsize */ | |
1829 | FALSE, /* pc_relative */ | |
1830 | 0, /* bitpos */ | |
1831 | complain_overflow_signed,/* complain_on_overflow */ | |
1832 | bfd_elf_generic_reloc, /* special_function */ | |
1833 | "R_NDS32_TLS_LE_15S1", /* name */ | |
1834 | FALSE, /* partial_inplace */ | |
1835 | 0x7fff, /* src_mask */ | |
1836 | 0x7fff, /* dst_mask */ | |
1837 | FALSE), /* pcrel_offset */ | |
1838 | HOWTO2 (R_NDS32_TLS_LE_15S2, /* type */ | |
1839 | 2, /* rightshift */ | |
1840 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1841 | 15, /* bitsize */ | |
1842 | FALSE, /* pc_relative */ | |
1843 | 0, /* bitpos */ | |
1844 | complain_overflow_signed,/* complain_on_overflow */ | |
1845 | bfd_elf_generic_reloc, /* special_function */ | |
1846 | "R_NDS32_TLS_LE_15S2", /* name */ | |
1847 | FALSE, /* partial_inplace */ | |
1848 | 0x7fff, /* src_mask */ | |
1849 | 0x7fff, /* dst_mask */ | |
1850 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1851 | |
1852 | /* Relax hint for unconditional call sequence */ | |
fbaf61ad NC |
1853 | HOWTO2 (R_NDS32_LONGCALL4, /* type */ |
1854 | 0, /* rightshift */ | |
1855 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1856 | 32, /* bitsize */ | |
1857 | FALSE, /* pc_relative */ | |
1858 | 0, /* bitpos */ | |
1859 | complain_overflow_dont,/* complain_on_overflow */ | |
1860 | nds32_elf_ignore_reloc,/* special_function */ | |
1861 | "R_NDS32_LONGCALL4", /* name */ | |
1862 | FALSE, /* partial_inplace */ | |
1863 | 0xffffffff, /* src_mask */ | |
1864 | 0xffffffff, /* dst_mask */ | |
1865 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1866 | |
1867 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1868 | HOWTO2 (R_NDS32_LONGCALL5, /* type */ |
1869 | 0, /* rightshift */ | |
1870 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1871 | 32, /* bitsize */ | |
1872 | FALSE, /* pc_relative */ | |
1873 | 0, /* bitpos */ | |
1874 | complain_overflow_dont,/* complain_on_overflow */ | |
1875 | nds32_elf_ignore_reloc,/* special_function */ | |
1876 | "R_NDS32_LONGCALL5", /* name */ | |
1877 | FALSE, /* partial_inplace */ | |
1878 | 0xffffffff, /* src_mask */ | |
1879 | 0xffffffff, /* dst_mask */ | |
1880 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1881 | |
1882 | /* Relax hint for conditional call sequence. */ | |
fbaf61ad NC |
1883 | HOWTO2 (R_NDS32_LONGCALL6, /* type */ |
1884 | 0, /* rightshift */ | |
1885 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1886 | 32, /* bitsize */ | |
1887 | FALSE, /* pc_relative */ | |
1888 | 0, /* bitpos */ | |
1889 | complain_overflow_dont,/* complain_on_overflow */ | |
1890 | nds32_elf_ignore_reloc,/* special_function */ | |
1891 | "R_NDS32_LONGCALL6", /* name */ | |
1892 | FALSE, /* partial_inplace */ | |
1893 | 0xffffffff, /* src_mask */ | |
1894 | 0xffffffff, /* dst_mask */ | |
1895 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1896 | |
1897 | /* Relax hint for unconditional branch sequence. */ | |
fbaf61ad NC |
1898 | HOWTO2 (R_NDS32_LONGJUMP4, /* type */ |
1899 | 0, /* rightshift */ | |
1900 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1901 | 32, /* bitsize */ | |
1902 | FALSE, /* pc_relative */ | |
1903 | 0, /* bitpos */ | |
1904 | complain_overflow_dont,/* complain_on_overflow */ | |
1905 | nds32_elf_ignore_reloc,/* special_function */ | |
1906 | "R_NDS32_LONGJUMP4", /* name */ | |
1907 | FALSE, /* partial_inplace */ | |
1908 | 0xffffffff, /* src_mask */ | |
1909 | 0xffffffff, /* dst_mask */ | |
1910 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1911 | |
1912 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1913 | HOWTO2 (R_NDS32_LONGJUMP5, /* type */ |
1914 | 0, /* rightshift */ | |
1915 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1916 | 32, /* bitsize */ | |
1917 | FALSE, /* pc_relative */ | |
1918 | 0, /* bitpos */ | |
1919 | complain_overflow_dont,/* complain_on_overflow */ | |
1920 | nds32_elf_ignore_reloc,/* special_function */ | |
1921 | "R_NDS32_LONGJUMP5", /* name */ | |
1922 | FALSE, /* partial_inplace */ | |
1923 | 0xffffffff, /* src_mask */ | |
1924 | 0xffffffff, /* dst_mask */ | |
1925 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1926 | |
1927 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1928 | HOWTO2 (R_NDS32_LONGJUMP6, /* type */ |
1929 | 0, /* rightshift */ | |
1930 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1931 | 32, /* bitsize */ | |
1932 | FALSE, /* pc_relative */ | |
1933 | 0, /* bitpos */ | |
1934 | complain_overflow_dont,/* complain_on_overflow */ | |
1935 | nds32_elf_ignore_reloc,/* special_function */ | |
1936 | "R_NDS32_LONGJUMP6", /* name */ | |
1937 | FALSE, /* partial_inplace */ | |
1938 | 0xffffffff, /* src_mask */ | |
1939 | 0xffffffff, /* dst_mask */ | |
1940 | FALSE), /* pcrel_offset */ | |
1c8f6a4d KLC |
1941 | |
1942 | /* Relax hint for conditional branch sequence. */ | |
fbaf61ad NC |
1943 | HOWTO2 (R_NDS32_LONGJUMP7, /* type */ |
1944 | 0, /* rightshift */ | |
1945 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1946 | 32, /* bitsize */ | |
1947 | FALSE, /* pc_relative */ | |
1948 | 0, /* bitpos */ | |
1949 | complain_overflow_dont,/* complain_on_overflow */ | |
1950 | nds32_elf_ignore_reloc,/* special_function */ | |
1951 | "R_NDS32_LONGJUMP7", /* name */ | |
1952 | FALSE, /* partial_inplace */ | |
1953 | 0xffffffff, /* src_mask */ | |
1954 | 0xffffffff, /* dst_mask */ | |
1955 | FALSE), /* pcrel_offset */ | |
1956 | ||
1957 | HOWTO2 (R_NDS32_TLS_IE_LO12, /* type */ | |
1958 | 0, /* rightshift */ | |
1959 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1960 | 12, /* bitsize */ | |
1961 | FALSE, /* pc_relative */ | |
1962 | 0, /* bitpos */ | |
1963 | complain_overflow_dont,/* complain_on_overflow */ | |
1964 | bfd_elf_generic_reloc, /* special_function */ | |
1965 | "R_NDS32_TLS_IE_LO12", /* name */ | |
1966 | FALSE, /* partial_inplace */ | |
1967 | 0x00000fff, /* src_mask */ | |
1968 | 0x00000fff, /* dst_mask */ | |
1969 | FALSE), /* pcrel_offset */ | |
1970 | ||
1971 | /* Like R_NDS32_HI20, but referring to the TLS IE (PIE) | |
1972 | entry for the symbol. */ | |
1973 | HOWTO2 (R_NDS32_TLS_IEGP_HI20,/* type */ | |
1974 | 12, /* rightshift */ | |
1975 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1976 | 20, /* bitsize */ | |
1977 | FALSE, /* pc_relative */ | |
1978 | 0, /* bitpos */ | |
1979 | complain_overflow_dont,/* complain_on_overflow */ | |
1980 | bfd_elf_generic_reloc, /* special_function */ | |
1981 | "R_NDS32_TLS_IEGP_HI20",/* name */ | |
1982 | FALSE, /* partial_inplace */ | |
1983 | 0x000fffff, /* src_mask */ | |
1984 | 0x000fffff, /* dst_mask */ | |
1985 | FALSE), /* pcrel_offset */ | |
1986 | ||
1987 | HOWTO2 (R_NDS32_TLS_IEGP_LO12,/* type */ | |
1988 | 0, /* rightshift */ | |
1989 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1990 | 12, /* bitsize */ | |
1991 | FALSE, /* pc_relative */ | |
1992 | 0, /* bitpos */ | |
1993 | complain_overflow_dont,/* complain_on_overflow */ | |
1994 | bfd_elf_generic_reloc, /* special_function */ | |
1995 | "R_NDS32_TLS_IEGP_LO12",/* name */ | |
1996 | FALSE, /* partial_inplace */ | |
1997 | 0x00000fff, /* src_mask */ | |
1998 | 0x00000fff, /* dst_mask */ | |
1999 | FALSE), /* pcrel_offset */ | |
2000 | ||
2001 | HOWTO2 (R_NDS32_TLS_IEGP_LO12S2,/* type */ | |
2002 | 2, /* rightshift */ | |
2003 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2004 | 10, /* bitsize */ | |
2005 | FALSE, /* pc_relative */ | |
2006 | 0, /* bitpos */ | |
2007 | complain_overflow_dont,/* complain_on_overflow */ | |
2008 | bfd_elf_generic_reloc, /* special_function */ | |
2009 | "R_NDS32_TLS_IEGP_LO12S2",/* name */ | |
2010 | FALSE, /* partial_inplace */ | |
2011 | 0x000003ff, /* src_mask */ | |
2012 | 0x000003ff, /* dst_mask */ | |
2013 | FALSE), /* pcrel_offset */ | |
2014 | ||
2015 | /* TLS description relocation */ | |
2016 | HOWTO2 (R_NDS32_TLS_DESC, /* type */ | |
2017 | 12, /* rightshift */ | |
2018 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2019 | 20, /* bitsize */ | |
2020 | FALSE, /* pc_relative */ | |
2021 | 0, /* bitpos */ | |
2022 | complain_overflow_dont,/* complain_on_overflow */ | |
2023 | nds32_elf_hi20_reloc, /* special_function */ | |
2024 | "R_NDS32_TLS_DESC_HI20",/* name */ | |
2025 | FALSE, /* partial_inplace */ | |
2026 | 0x000fffff, /* src_mask */ | |
2027 | 0x000fffff, /* dst_mask */ | |
2028 | FALSE), /* pcrel_offset */ | |
2029 | ||
2030 | /* TLS GD/LD description offset high part. */ | |
2031 | HOWTO2 (R_NDS32_TLS_DESC_HI20,/* type */ | |
2032 | 12, /* rightshift */ | |
2033 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2034 | 20, /* bitsize */ | |
2035 | FALSE, /* pc_relative */ | |
2036 | 0, /* bitpos */ | |
2037 | complain_overflow_dont,/* complain_on_overflow */ | |
2038 | nds32_elf_hi20_reloc, /* special_function */ | |
2039 | "R_NDS32_TLS_DESC_HI20",/* name */ | |
2040 | FALSE, /* partial_inplace */ | |
2041 | 0x000fffff, /* src_mask */ | |
2042 | 0x000fffff, /* dst_mask */ | |
2043 | FALSE), /* pcrel_offset */ | |
2044 | ||
2045 | /* TLS GD/LD description offset low part. */ | |
2046 | HOWTO2 (R_NDS32_TLS_DESC_LO12,/* type */ | |
2047 | 0, /* rightshift */ | |
2048 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2049 | 12, /* bitsize */ | |
2050 | FALSE, /* pc_relative */ | |
2051 | 0, /* bitpos */ | |
2052 | complain_overflow_dont,/* complain_on_overflow */ | |
2053 | nds32_elf_lo12_reloc, /* special_function */ | |
2054 | "R_NDS32_TLS_DESC_LO12",/* name */ | |
2055 | FALSE, /* partial_inplace */ | |
2056 | 0x00000fff, /* src_mask */ | |
2057 | 0x00000fff, /* dst_mask */ | |
2058 | FALSE), /* pcrel_offset */ | |
2059 | ||
2060 | /* TLS GD/LD description offset set (movi). */ | |
2061 | HOWTO2 (R_NDS32_TLS_DESC_20, /* type */ | |
2062 | 0, /* rightshift */ | |
2063 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2064 | 20, /* bitsize */ | |
2065 | FALSE, /* pc_relative */ | |
2066 | 0, /* bitpos */ | |
2067 | complain_overflow_signed,/* complain_on_overflow */ | |
2068 | bfd_elf_generic_reloc, /* special_function */ | |
2069 | "R_NDS32_TLS_DESC_20", /* name */ | |
2070 | FALSE, /* partial_inplace */ | |
2071 | 0x000fffff, /* src_mask */ | |
2072 | 0x000fffff, /* dst_mask */ | |
2073 | FALSE), /* pcrel_offset */ | |
2074 | ||
2075 | /* TLS GD/LD description offset set (lwi.gp). */ | |
2076 | HOWTO2 (R_NDS32_TLS_DESC_SDA17S2,/* type */ | |
2077 | 2, /* rightshift */ | |
2078 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2079 | 17, /* bitsize */ | |
2080 | FALSE, /* pc_relative */ | |
2081 | 0, /* bitpos */ | |
2082 | complain_overflow_signed,/* complain_on_overflow */ | |
2083 | bfd_elf_generic_reloc, /* special_function */ | |
2084 | "R_NDS32_TLS_DESC_SDA17S2",/* name */ | |
2085 | FALSE, /* partial_inplace */ | |
2086 | 0x0001ffff, /* src_mask */ | |
2087 | 0x0001ffff, /* dst_mask */ | |
2088 | FALSE), /* pcrel_offset */ | |
35c08157 KLC |
2089 | }; |
2090 | ||
2091 | /* Relocations used for relaxation. */ | |
fbaf61ad NC |
2092 | #define HOWTO3(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \ |
2093 | [C-R_NDS32_RELAX_ENTRY] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) | |
2094 | ||
2095 | static reloc_howto_type nds32_elf_relax_howto_table[] = { | |
2096 | HOWTO3 (R_NDS32_RELAX_ENTRY, /* type */ | |
2097 | 0, /* rightshift */ | |
2098 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2099 | 32, /* bitsize */ | |
2100 | FALSE, /* pc_relative */ | |
2101 | 0, /* bitpos */ | |
2102 | complain_overflow_dont,/* complain_on_overflow */ | |
2103 | nds32_elf_ignore_reloc,/* special_function */ | |
2104 | "R_NDS32_RELAX_ENTRY", /* name */ | |
2105 | FALSE, /* partial_inplace */ | |
2106 | 0xffffffff, /* src_mask */ | |
2107 | 0xffffffff, /* dst_mask */ | |
2108 | FALSE), /* pcrel_offset */ | |
2109 | HOWTO3 (R_NDS32_GOT_SUFF, /* type */ | |
2110 | 0, /* rightshift */ | |
2111 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2112 | 32, /* bitsize */ | |
2113 | FALSE, /* pc_relative */ | |
2114 | 0, /* bitpos */ | |
2115 | complain_overflow_dont,/* complain_on_overflow */ | |
2116 | nds32_elf_ignore_reloc,/* special_function */ | |
2117 | "R_NDS32_GOT_SUFF", /* name */ | |
2118 | FALSE, /* partial_inplace */ | |
2119 | 0xffffffff, /* src_mask */ | |
2120 | 0xffffffff, /* dst_mask */ | |
2121 | FALSE), /* pcrel_offset */ | |
2122 | HOWTO3 (R_NDS32_GOTOFF_SUFF, /* type */ | |
2123 | 0, /* rightshift */ | |
2124 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2125 | 32, /* bitsize */ | |
2126 | FALSE, /* pc_relative */ | |
2127 | 0, /* bitpos */ | |
2128 | complain_overflow_bitfield,/* complain_on_overflow */ | |
2129 | nds32_elf_ignore_reloc,/* special_function */ | |
2130 | "R_NDS32_GOTOFF_SUFF", /* name */ | |
2131 | FALSE, /* partial_inplace */ | |
2132 | 0xffffffff, /* src_mask */ | |
2133 | 0xffffffff, /* dst_mask */ | |
2134 | FALSE), /* pcrel_offset */ | |
2135 | HOWTO3 (R_NDS32_PLT_GOT_SUFF, /* type */ | |
2136 | 0, /* rightshift */ | |
2137 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2138 | 32, /* bitsize */ | |
2139 | FALSE, /* pc_relative */ | |
2140 | 0, /* bitpos */ | |
2141 | complain_overflow_dont,/* complain_on_overflow */ | |
2142 | nds32_elf_ignore_reloc,/* special_function */ | |
2143 | "R_NDS32_PLT_GOT_SUFF",/* name */ | |
2144 | FALSE, /* partial_inplace */ | |
2145 | 0xffffffff, /* src_mask */ | |
2146 | 0xffffffff, /* dst_mask */ | |
2147 | FALSE), /* pcrel_offset */ | |
2148 | HOWTO3 (R_NDS32_MULCALL_SUFF, /* type */ | |
2149 | 0, /* rightshift */ | |
2150 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2151 | 32, /* bitsize */ | |
2152 | FALSE, /* pc_relative */ | |
2153 | 0, /* bitpos */ | |
2154 | complain_overflow_dont,/* complain_on_overflow */ | |
2155 | nds32_elf_ignore_reloc,/* special_function */ | |
2156 | "R_NDS32_MULCALL_SUFF",/* name */ | |
2157 | FALSE, /* partial_inplace */ | |
2158 | 0xffffffff, /* src_mask */ | |
2159 | 0xffffffff, /* dst_mask */ | |
2160 | FALSE), /* pcrel_offset */ | |
2161 | HOWTO3 (R_NDS32_PTR, /* type */ | |
2162 | 0, /* rightshift */ | |
2163 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2164 | 32, /* bitsize */ | |
2165 | FALSE, /* pc_relative */ | |
2166 | 0, /* bitpos */ | |
2167 | complain_overflow_dont,/* complain_on_overflow */ | |
2168 | nds32_elf_ignore_reloc,/* special_function */ | |
2169 | "R_NDS32_PTR", /* name */ | |
2170 | FALSE, /* partial_inplace */ | |
2171 | 0xffffffff, /* src_mask */ | |
2172 | 0xffffffff, /* dst_mask */ | |
2173 | FALSE), /* pcrel_offset */ | |
2174 | HOWTO3 (R_NDS32_PTR_COUNT, /* type */ | |
2175 | 0, /* rightshift */ | |
2176 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2177 | 32, /* bitsize */ | |
2178 | FALSE, /* pc_relative */ | |
2179 | 0, /* bitpos */ | |
2180 | complain_overflow_dont,/* complain_on_overflow */ | |
2181 | nds32_elf_ignore_reloc,/* special_function */ | |
2182 | "R_NDS32_PTR_COUNT", /* name */ | |
2183 | FALSE, /* partial_inplace */ | |
2184 | 0xffffffff, /* src_mask */ | |
2185 | 0xffffffff, /* dst_mask */ | |
2186 | FALSE), /* pcrel_offset */ | |
2187 | HOWTO3 (R_NDS32_PTR_RESOLVED, /* type */ | |
2188 | 0, /* rightshift */ | |
2189 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2190 | 32, /* bitsize */ | |
2191 | FALSE, /* pc_relative */ | |
2192 | 0, /* bitpos */ | |
2193 | complain_overflow_dont,/* complain_on_overflow */ | |
2194 | nds32_elf_ignore_reloc,/* special_function */ | |
2195 | "R_NDS32_PTR_RESOLVED",/* name */ | |
2196 | FALSE, /* partial_inplace */ | |
2197 | 0xffffffff, /* src_mask */ | |
2198 | 0xffffffff, /* dst_mask */ | |
2199 | FALSE), /* pcrel_offset */ | |
2200 | HOWTO3 (R_NDS32_PLTBLOCK, /* type */ | |
2201 | 0, /* rightshift */ | |
2202 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2203 | 32, /* bitsize */ | |
2204 | FALSE, /* pc_relative */ | |
2205 | 0, /* bitpos */ | |
2206 | complain_overflow_dont,/* complain_on_overflow */ | |
2207 | nds32_elf_ignore_reloc,/* special_function */ | |
2208 | "R_NDS32_PLTBLOCK", /* name */ | |
2209 | FALSE, /* partial_inplace */ | |
2210 | 0xffffffff, /* src_mask */ | |
2211 | 0xffffffff, /* dst_mask */ | |
2212 | FALSE), /* pcrel_offset */ | |
2213 | HOWTO3 (R_NDS32_RELAX_REGION_BEGIN,/* type */ | |
2214 | 0, /* rightshift */ | |
2215 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2216 | 32, /* bitsize */ | |
2217 | FALSE, /* pc_relative */ | |
2218 | 0, /* bitpos */ | |
2219 | complain_overflow_dont,/* complain_on_overflow */ | |
2220 | nds32_elf_ignore_reloc,/* special_function */ | |
2221 | "R_NDS32_RELAX_REGION_BEGIN",/* name */ | |
2222 | FALSE, /* partial_inplace */ | |
2223 | 0xffffffff, /* src_mask */ | |
2224 | 0xffffffff, /* dst_mask */ | |
2225 | FALSE), /* pcrel_offset */ | |
2226 | HOWTO3 (R_NDS32_RELAX_REGION_END,/* type */ | |
2227 | 0, /* rightshift */ | |
2228 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2229 | 32, /* bitsize */ | |
2230 | FALSE, /* pc_relative */ | |
2231 | 0, /* bitpos */ | |
2232 | complain_overflow_dont,/* complain_on_overflow */ | |
2233 | nds32_elf_ignore_reloc,/* special_function */ | |
2234 | "R_NDS32_RELAX_REGION_END",/* name */ | |
2235 | FALSE, /* partial_inplace */ | |
2236 | 0xffffffff, /* src_mask */ | |
2237 | 0xffffffff, /* dst_mask */ | |
2238 | FALSE), /* pcrel_offset */ | |
2239 | HOWTO3 (R_NDS32_MINUEND, /* type */ | |
2240 | 0, /* rightshift */ | |
2241 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2242 | 32, /* bitsize */ | |
2243 | FALSE, /* pc_relative */ | |
2244 | 0, /* bitpos */ | |
2245 | complain_overflow_dont,/* complain_on_overflow */ | |
2246 | nds32_elf_ignore_reloc,/* special_function */ | |
2247 | "R_NDS32_MINUEND", /* name */ | |
2248 | FALSE, /* partial_inplace */ | |
2249 | 0xffffffff, /* src_mask */ | |
2250 | 0xffffffff, /* dst_mask */ | |
2251 | FALSE), /* pcrel_offset */ | |
2252 | HOWTO3 (R_NDS32_SUBTRAHEND, /* type */ | |
2253 | 0, /* rightshift */ | |
2254 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2255 | 32, /* bitsize */ | |
2256 | FALSE, /* pc_relative */ | |
2257 | 0, /* bitpos */ | |
2258 | complain_overflow_dont,/* complain_on_overflow */ | |
2259 | nds32_elf_ignore_reloc,/* special_function */ | |
2260 | "R_NDS32_SUBTRAHEND", /* name */ | |
2261 | FALSE, /* partial_inplace */ | |
2262 | 0xffffffff, /* src_mask */ | |
2263 | 0xffffffff, /* dst_mask */ | |
2264 | FALSE), /* pcrel_offset */ | |
2265 | HOWTO3 (R_NDS32_DIFF8, /* type */ | |
2266 | 0, /* rightshift */ | |
2267 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
2268 | 8, /* bitsize */ | |
2269 | FALSE, /* pc_relative */ | |
2270 | 0, /* bitpos */ | |
2271 | complain_overflow_dont,/* complain_on_overflow */ | |
2272 | nds32_elf_ignore_reloc,/* special_function */ | |
2273 | "R_NDS32_DIFF8", /* name */ | |
2274 | FALSE, /* partial_inplace */ | |
2275 | 0x000000ff, /* src_mask */ | |
2276 | 0x000000ff, /* dst_mask */ | |
2277 | FALSE), /* pcrel_offset */ | |
2278 | HOWTO3 (R_NDS32_DIFF16, /* type */ | |
2279 | 0, /* rightshift */ | |
2280 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
2281 | 16, /* bitsize */ | |
2282 | FALSE, /* pc_relative */ | |
2283 | 0, /* bitpos */ | |
2284 | complain_overflow_dont,/* complain_on_overflow */ | |
2285 | nds32_elf_ignore_reloc,/* special_function */ | |
2286 | "R_NDS32_DIFF16", /* name */ | |
2287 | FALSE, /* partial_inplace */ | |
2288 | 0x0000ffff, /* src_mask */ | |
2289 | 0x0000ffff, /* dst_mask */ | |
2290 | FALSE), /* pcrel_offset */ | |
2291 | HOWTO3 (R_NDS32_DIFF32, /* type */ | |
2292 | 0, /* rightshift */ | |
2293 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2294 | 32, /* bitsize */ | |
2295 | FALSE, /* pc_relative */ | |
2296 | 0, /* bitpos */ | |
2297 | complain_overflow_dont,/* complain_on_overflow */ | |
2298 | nds32_elf_ignore_reloc,/* special_function */ | |
2299 | "R_NDS32_DIFF32", /* name */ | |
2300 | FALSE, /* partial_inplace */ | |
2301 | 0xffffffff, /* src_mask */ | |
2302 | 0xffffffff, /* dst_mask */ | |
2303 | FALSE), /* pcrel_offset */ | |
2304 | HOWTO3 (R_NDS32_DIFF_ULEB128, /* type */ | |
2305 | 0, /* rightshift */ | |
2306 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
2307 | 0, /* bitsize */ | |
2308 | FALSE, /* pc_relative */ | |
2309 | 0, /* bitpos */ | |
2310 | complain_overflow_dont,/* complain_on_overflow */ | |
2311 | nds32_elf_ignore_reloc,/* special_function */ | |
2312 | "R_NDS32_DIFF_ULEB128",/* name */ | |
2313 | FALSE, /* partial_inplace */ | |
2314 | 0xffffffff, /* src_mask */ | |
2315 | 0xffffffff, /* dst_mask */ | |
2316 | FALSE), /* pcrel_offset */ | |
2317 | HOWTO3 (R_NDS32_DATA, /* type */ | |
2318 | 0, /* rightshift */ | |
2319 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2320 | 32, /* bitsize */ | |
2321 | FALSE, /* pc_relative */ | |
2322 | 0, /* bitpos */ | |
2323 | complain_overflow_dont,/* complain_on_overflow */ | |
2324 | nds32_elf_ignore_reloc,/* special_function */ | |
2325 | "R_NDS32_DATA", /* name */ | |
2326 | FALSE, /* partial_inplace */ | |
2327 | 0xffffffff, /* src_mask */ | |
2328 | 0xffffffff, /* dst_mask */ | |
2329 | FALSE), /* pcrel_offset */ | |
2330 | HOWTO3 (R_NDS32_TRAN, /* type */ | |
2331 | 0, /* rightshift */ | |
2332 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2333 | 32, /* bitsize */ | |
2334 | FALSE, /* pc_relative */ | |
2335 | 0, /* bitpos */ | |
2336 | complain_overflow_dont,/* complain_on_overflow */ | |
2337 | nds32_elf_ignore_reloc,/* special_function */ | |
2338 | "R_NDS32_TRAN", /* name */ | |
2339 | FALSE, /* partial_inplace */ | |
2340 | 0xffffffff, /* src_mask */ | |
2341 | 0xffffffff, /* dst_mask */ | |
2342 | FALSE), /* pcrel_offset */ | |
2343 | HOWTO3 (R_NDS32_TLS_LE_ADD, /* type */ | |
2344 | 0, /* rightshift */ | |
2345 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2346 | 32, /* bitsize */ | |
2347 | FALSE, /* pc_relative */ | |
2348 | 0, /* bitpos */ | |
2349 | complain_overflow_dont,/* complain_on_overflow */ | |
2350 | nds32_elf_ignore_reloc,/* special_function */ | |
2351 | "R_NDS32_TLS_LE_ADD", /* name */ | |
2352 | FALSE, /* partial_inplace */ | |
2353 | 0xffffffff, /* src_mask */ | |
2354 | 0xffffffff, /* dst_mask */ | |
2355 | FALSE), /* pcrel_offset */ | |
2356 | HOWTO3 (R_NDS32_TLS_LE_LS, /* type */ | |
2357 | 0, /* rightshift */ | |
2358 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2359 | 32, /* bitsize */ | |
2360 | FALSE, /* pc_relative */ | |
2361 | 0, /* bitpos */ | |
2362 | complain_overflow_dont,/* complain_on_overflow */ | |
2363 | nds32_elf_ignore_reloc,/* special_function */ | |
2364 | "R_NDS32_TLS_LE_LS", /* name */ | |
2365 | FALSE, /* partial_inplace */ | |
2366 | 0xffffffff, /* src_mask */ | |
2367 | 0xffffffff, /* dst_mask */ | |
2368 | FALSE), /* pcrel_offset */ | |
2369 | HOWTO3 (R_NDS32_EMPTY, /* type */ | |
2370 | 0, /* rightshift */ | |
2371 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2372 | 32, /* bitsize */ | |
2373 | FALSE, /* pc_relative */ | |
2374 | 0, /* bitpos */ | |
2375 | complain_overflow_dont,/* complain_on_overflow */ | |
2376 | nds32_elf_ignore_reloc,/* special_function */ | |
2377 | "R_NDS32_EMPTY", /* name */ | |
2378 | FALSE, /* partial_inplace */ | |
2379 | 0xffffffff, /* src_mask */ | |
2380 | 0xffffffff, /* dst_mask */ | |
2381 | FALSE), /* pcrel_offset */ | |
2382 | /* TLS GD/LD description address base addition. */ | |
2383 | HOWTO3 (R_NDS32_TLS_DESC_ADD, /* type */ | |
2384 | 0, /* rightshift */ | |
2385 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2386 | 32, /* bitsize */ | |
2387 | FALSE, /* pc_relative */ | |
2388 | 0, /* bitpos */ | |
2389 | complain_overflow_dont,/* complain_on_overflow */ | |
2390 | nds32_elf_ignore_reloc,/* special_function */ | |
2391 | "R_NDS32_TLS_DESC_ADD",/* name */ | |
2392 | FALSE, /* partial_inplace */ | |
2393 | 0xffffffff, /* src_mask */ | |
2394 | 0xffffffff, /* dst_mask */ | |
2395 | FALSE), /* pcrel_offset */ | |
2396 | /* TLS GD/LD description function load. */ | |
2397 | HOWTO3 (R_NDS32_TLS_DESC_FUNC,/* type */ | |
2398 | 0, /* rightshift */ | |
2399 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2400 | 32, /* bitsize */ | |
2401 | FALSE, /* pc_relative */ | |
2402 | 0, /* bitpos */ | |
2403 | complain_overflow_dont,/* complain_on_overflow */ | |
2404 | nds32_elf_ignore_reloc,/* special_function */ | |
2405 | "R_NDS32_TLS_DESC_FUNC",/* name */ | |
2406 | FALSE, /* partial_inplace */ | |
2407 | 0xffffffff, /* src_mask */ | |
2408 | 0xffffffff, /* dst_mask */ | |
2409 | FALSE), /* pcrel_offset */ | |
2410 | /* TLS DESC resolve function call. */ | |
2411 | HOWTO3 (R_NDS32_TLS_DESC_CALL,/* type */ | |
2412 | 0, /* rightshift */ | |
2413 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2414 | 32, /* bitsize */ | |
2415 | FALSE, /* pc_relative */ | |
2416 | 0, /* bitpos */ | |
2417 | complain_overflow_dont,/* complain_on_overflow */ | |
2418 | nds32_elf_ignore_reloc,/* special_function */ | |
2419 | "R_NDS32_TLS_DESC_CALL",/* name */ | |
2420 | FALSE, /* partial_inplace */ | |
2421 | 0xffffffff, /* src_mask */ | |
2422 | 0xffffffff, /* dst_mask */ | |
2423 | FALSE), /* pcrel_offset */ | |
2424 | /* TLS DESC variable access. */ | |
2425 | HOWTO3 (R_NDS32_TLS_DESC_MEM, /* type */ | |
2426 | 0, /* rightshift */ | |
2427 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2428 | 32, /* bitsize */ | |
2429 | FALSE, /* pc_relative */ | |
2430 | 0, /* bitpos */ | |
2431 | complain_overflow_dont,/* complain_on_overflow */ | |
2432 | nds32_elf_ignore_reloc,/* special_function */ | |
2433 | "R_NDS32_TLS_DESC_MEM",/* name */ | |
2434 | FALSE, /* partial_inplace */ | |
2435 | 0xffffffff, /* src_mask */ | |
2436 | 0xffffffff, /* dst_mask */ | |
2437 | FALSE), /* pcrel_offset */ | |
2438 | /* TLS GD/LD description mark (@tlsdec). */ | |
2439 | HOWTO3 (R_NDS32_RELAX_REMOVE, /* type */ | |
2440 | 0, /* rightshift */ | |
2441 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2442 | 32, /* bitsize */ | |
2443 | FALSE, /* pc_relative */ | |
2444 | 0, /* bitpos */ | |
2445 | complain_overflow_dont,/* complain_on_overflow */ | |
2446 | nds32_elf_ignore_reloc,/* special_function */ | |
2447 | "R_NDS32_REMOVE", /* name */ | |
2448 | FALSE, /* partial_inplace */ | |
2449 | 0xffffffff, /* src_mask */ | |
2450 | 0xffffffff, /* dst_mask */ | |
2451 | FALSE), /* pcrel_offset */ | |
2452 | /* TLS GD/LD description mark (@tlsdec). */ | |
2453 | HOWTO3 (R_NDS32_RELAX_GROUP, /* type */ | |
2454 | 0, /* rightshift */ | |
2455 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2456 | 32, /* bitsize */ | |
2457 | FALSE, /* pc_relative */ | |
2458 | 0, /* bitpos */ | |
2459 | complain_overflow_dont,/* complain_on_overflow */ | |
2460 | nds32_elf_ignore_reloc,/* special_function */ | |
2461 | "R_NDS32_GROUP", /* name */ | |
2462 | FALSE, /* partial_inplace */ | |
2463 | 0xffffffff, /* src_mask */ | |
2464 | 0xffffffff, /* dst_mask */ | |
2465 | FALSE), /* pcrel_offset */ | |
2466 | HOWTO3 (R_NDS32_TLS_IEGP_LW, /* type */ | |
2467 | 0, /* rightshift */ | |
2468 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2469 | 32, /* bitsize */ | |
2470 | FALSE, /* pc_relative */ | |
2471 | 0, /* bitpos */ | |
2472 | complain_overflow_dont,/* complain_on_overflow */ | |
2473 | nds32_elf_ignore_reloc,/* special_function */ | |
2474 | "R_NDS32_TLS_IEGP_LW", /* name */ | |
2475 | FALSE, /* partial_inplace */ | |
2476 | 0xffffffff, /* src_mask */ | |
2477 | 0xffffffff, /* dst_mask */ | |
2478 | FALSE), /* pcrel_offset */ | |
2479 | /* LA and FLSI relaxation. */ | |
2480 | HOWTO3 (R_NDS32_LSI, /* type */ | |
2481 | 0, /* rightshift */ | |
2482 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
2483 | 32, /* bitsize */ | |
2484 | FALSE, /* pc_relative */ | |
2485 | 0, /* bitpos */ | |
2486 | complain_overflow_dont,/* complain_on_overflow */ | |
2487 | nds32_elf_ignore_reloc,/* special_function */ | |
2488 | "R_NDS32_LSI", /* name */ | |
2489 | FALSE, /* partial_inplace */ | |
2490 | 0xffffffff, /* src_mask */ | |
2491 | 0xffffffff, /* dst_mask */ | |
2492 | FALSE), | |
35c08157 KLC |
2493 | }; |
2494 | ||
fbaf61ad NC |
2495 | static unsigned long dl_tlsdesc_lazy_trampoline[] = |
2496 | { | |
2497 | 0x46200000, /* sethi $r2,#0x0 */ | |
2498 | 0x58210000, /* ori $r2,$r2,#0x0 */ | |
2499 | 0x40217400, /* add $r2,$r2,$gp */ | |
2500 | 0x04210000, /* lwi $r2,[$r2+#0x0] */ | |
2501 | 0x46300000, /* sethi $r3,#0x0 */ | |
2502 | 0x58318000, /* ori $r3,$r3,#0x0 */ | |
2503 | 0x4031f400, /* add $r3,$r3,$gp */ | |
2504 | 0x4a000800, /* jr $r2 */ | |
2505 | }; | |
2506 | ||
2507 | static void | |
2508 | nds32_put_trampoline (void *contents, const unsigned long *template, | |
2509 | unsigned count) | |
2510 | { | |
2511 | unsigned ix; | |
2512 | ||
2513 | for (ix = 0; ix != count; ix++) | |
2514 | { | |
2515 | unsigned long insn = template[ix]; | |
2516 | bfd_putb32 (insn, (char *) contents + ix * 4); | |
2517 | } | |
2518 | } | |
2519 | ||
35c08157 KLC |
2520 | /* nds32_insertion_sort sorts an array with nmemb elements of size size. |
2521 | This prototype is the same as qsort (). */ | |
2522 | ||
2523 | void | |
2524 | nds32_insertion_sort (void *base, size_t nmemb, size_t size, | |
2525 | int (*compar) (const void *lhs, const void *rhs)) | |
2526 | { | |
2527 | char *ptr = (char *) base; | |
1c8f6a4d | 2528 | int i, j; |
9a733151 AM |
2529 | char tmp[sizeof (Elf_Internal_Rela)]; |
2530 | ||
2531 | BFD_ASSERT (size <= sizeof (tmp)); | |
35c08157 KLC |
2532 | |
2533 | /* If i is less than j, i is inserted before j. | |
2534 | ||
2535 | |---- j ----- i --------------| | |
2536 | \ / \ / | |
2537 | sorted unsorted | |
2538 | */ | |
2539 | ||
1c8f6a4d | 2540 | for (i = 1; i < (int) nmemb; i++) |
35c08157 | 2541 | { |
1c8f6a4d KLC |
2542 | for (j = (i - 1); j >= 0; j--) |
2543 | if (compar (ptr + i * size, ptr + j * size) >= 0) | |
35c08157 KLC |
2544 | break; |
2545 | ||
1c8f6a4d KLC |
2546 | j++; |
2547 | ||
35c08157 | 2548 | if (i == j) |
1c8f6a4d | 2549 | continue; /* i is in order. */ |
35c08157 KLC |
2550 | |
2551 | memcpy (tmp, ptr + i * size, size); | |
2552 | memmove (ptr + (j + 1) * size, ptr + j * size, (i - j) * size); | |
2553 | memcpy (ptr + j * size, tmp, size); | |
2554 | } | |
2555 | } | |
2556 | ||
2557 | /* Sort relocation by r_offset. | |
2558 | ||
2559 | We didn't use qsort () in stdlib, because quick-sort is not a stable sorting | |
2560 | algorithm. Relocations at the same r_offset must keep their order. | |
2561 | For example, RELAX_ENTRY must be the very first relocation entry. | |
2562 | ||
2563 | Currently, this function implements insertion-sort. | |
2564 | ||
2565 | FIXME: If we already sort them in assembler, why bother sort them | |
2566 | here again? */ | |
2567 | ||
2568 | static int | |
2569 | compar_reloc (const void *lhs, const void *rhs) | |
2570 | { | |
2571 | const Elf_Internal_Rela *l = (const Elf_Internal_Rela *) lhs; | |
2572 | const Elf_Internal_Rela *r = (const Elf_Internal_Rela *) rhs; | |
2573 | ||
2574 | if (l->r_offset > r->r_offset) | |
2575 | return 1; | |
2576 | else if (l->r_offset == r->r_offset) | |
2577 | return 0; | |
2578 | else | |
2579 | return -1; | |
2580 | } | |
2581 | ||
2582 | /* Functions listed below are only used for old relocs. | |
fbaf61ad NC |
2583 | nds32_elf_9_pcrel_reloc |
2584 | nds32_elf_do_9_pcrel_reloc | |
2585 | nds32_elf_hi20_reloc | |
2586 | nds32_elf_relocate_hi20 | |
2587 | nds32_elf_lo12_reloc | |
2588 | nds32_elf_sda15_reloc | |
2589 | nds32_elf_generic_reloc. */ | |
35c08157 KLC |
2590 | |
2591 | /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */ | |
2592 | ||
2593 | static bfd_reloc_status_type | |
fbaf61ad NC |
2594 | nds32_elf_9_pcrel_reloc (bfd * abfd, |
2595 | arelent * reloc_entry, | |
2596 | asymbol * symbol, | |
2597 | void * data, | |
2598 | asection * input_section, | |
2599 | bfd * output_bfd, | |
2600 | char ** error_message ATTRIBUTE_UNUSED) | |
35c08157 KLC |
2601 | { |
2602 | /* This part is from bfd_elf_generic_reloc. */ | |
2603 | if (output_bfd != (bfd *) NULL | |
2604 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2605 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
2606 | { | |
2607 | reloc_entry->address += input_section->output_offset; | |
2608 | return bfd_reloc_ok; | |
2609 | } | |
2610 | ||
2611 | if (output_bfd != NULL) | |
2612 | { | |
2613 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
2614 | return bfd_reloc_continue; | |
2615 | } | |
2616 | ||
2617 | return nds32_elf_do_9_pcrel_reloc (abfd, reloc_entry->howto, | |
2618 | input_section, | |
2619 | data, reloc_entry->address, | |
2620 | symbol->section, | |
2621 | (symbol->value | |
2622 | + symbol->section->output_section->vma | |
2623 | + symbol->section->output_offset), | |
2624 | reloc_entry->addend); | |
2625 | } | |
2626 | ||
2627 | /* Utility to actually perform an R_NDS32_9_PCREL reloc. */ | |
2628 | #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1) | |
2629 | ||
2630 | static bfd_reloc_status_type | |
fbaf61ad NC |
2631 | nds32_elf_do_9_pcrel_reloc (bfd * abfd, |
2632 | reloc_howto_type * howto, | |
2633 | asection * input_section, | |
2634 | bfd_byte * data, | |
2635 | bfd_vma offset, | |
2636 | asection * symbol_section ATTRIBUTE_UNUSED, | |
2637 | bfd_vma symbol_value, | |
2638 | bfd_vma addend) | |
35c08157 KLC |
2639 | { |
2640 | bfd_signed_vma relocation; | |
2641 | unsigned short x; | |
2642 | bfd_reloc_status_type status; | |
2643 | ||
2644 | /* Sanity check the address (offset in section). */ | |
2645 | if (offset > bfd_get_section_limit (abfd, input_section)) | |
2646 | return bfd_reloc_outofrange; | |
2647 | ||
2648 | relocation = symbol_value + addend; | |
2649 | /* Make it pc relative. */ | |
2650 | relocation -= (input_section->output_section->vma | |
2651 | + input_section->output_offset); | |
2652 | /* These jumps mask off the lower two bits of the current address | |
2653 | before doing pcrel calculations. */ | |
2654 | relocation -= (offset & -(bfd_vma) 2); | |
2655 | ||
1c8f6a4d | 2656 | if (relocation < -ACCURATE_8BIT_S1 || relocation >= ACCURATE_8BIT_S1) |
35c08157 KLC |
2657 | status = bfd_reloc_overflow; |
2658 | else | |
2659 | status = bfd_reloc_ok; | |
2660 | ||
2661 | x = bfd_getb16 (data + offset); | |
2662 | ||
2663 | relocation >>= howto->rightshift; | |
2664 | relocation <<= howto->bitpos; | |
2665 | x = (x & ~howto->dst_mask) | |
2666 | | (((x & howto->src_mask) + relocation) & howto->dst_mask); | |
2667 | ||
2668 | bfd_putb16 ((bfd_vma) x, data + offset); | |
2669 | ||
2670 | return status; | |
2671 | } | |
2672 | ||
2673 | /* Handle the R_NDS32_HI20_[SU]LO relocs. | |
2674 | HI20_SLO is for the add3 and load/store with displacement instructions. | |
2675 | HI20 is for the or3 instruction. | |
2676 | For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to | |
2677 | the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then | |
2678 | we must add one to the high 16 bytes (which will get subtracted off when | |
2679 | the low 16 bits are added). | |
2680 | These relocs have to be done in combination with an R_NDS32_LO12 reloc | |
2681 | because there is a carry from the LO12 to the HI20. Here we just save | |
2682 | the information we need; we do the actual relocation when we see the LO12. | |
2683 | This code is copied from the elf32-mips.c. We also support an arbitrary | |
2684 | number of HI20 relocs to be associated with a single LO12 reloc. The | |
2685 | assembler sorts the relocs to ensure each HI20 immediately precedes its | |
2686 | LO12. However if there are multiple copies, the assembler may not find | |
2687 | the real LO12 so it picks the first one it finds. */ | |
2688 | ||
2689 | struct nds32_hi20 | |
2690 | { | |
2691 | struct nds32_hi20 *next; | |
2692 | bfd_byte *addr; | |
2693 | bfd_vma addend; | |
2694 | }; | |
2695 | ||
2696 | static struct nds32_hi20 *nds32_hi20_list; | |
2697 | ||
2698 | static bfd_reloc_status_type | |
fbaf61ad NC |
2699 | nds32_elf_hi20_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
2700 | arelent *reloc_entry, | |
2701 | asymbol *symbol, | |
2702 | void *data, | |
2703 | asection *input_section, | |
2704 | bfd *output_bfd, | |
2705 | char **error_message ATTRIBUTE_UNUSED) | |
35c08157 KLC |
2706 | { |
2707 | bfd_reloc_status_type ret; | |
2708 | bfd_vma relocation; | |
2709 | struct nds32_hi20 *n; | |
2710 | ||
2711 | /* This part is from bfd_elf_generic_reloc. | |
2712 | If we're relocating, and this an external symbol, we don't want | |
2713 | to change anything. */ | |
2714 | if (output_bfd != (bfd *) NULL | |
2715 | && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0) | |
2716 | { | |
2717 | reloc_entry->address += input_section->output_offset; | |
2718 | return bfd_reloc_ok; | |
2719 | } | |
2720 | ||
2721 | /* Sanity check the address (offset in section). */ | |
2722 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
2723 | return bfd_reloc_outofrange; | |
2724 | ||
2725 | ret = bfd_reloc_ok; | |
2726 | if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) | |
2727 | ret = bfd_reloc_undefined; | |
2728 | ||
2729 | if (bfd_is_com_section (symbol->section)) | |
2730 | relocation = 0; | |
2731 | else | |
2732 | relocation = symbol->value; | |
2733 | ||
2734 | relocation += symbol->section->output_section->vma; | |
2735 | relocation += symbol->section->output_offset; | |
2736 | relocation += reloc_entry->addend; | |
2737 | ||
2738 | /* Save the information, and let LO12 do the actual relocation. */ | |
2739 | n = (struct nds32_hi20 *) bfd_malloc ((bfd_size_type) sizeof *n); | |
2740 | if (n == NULL) | |
2741 | return bfd_reloc_outofrange; | |
2742 | ||
2743 | n->addr = (bfd_byte *) data + reloc_entry->address; | |
2744 | n->addend = relocation; | |
2745 | n->next = nds32_hi20_list; | |
2746 | nds32_hi20_list = n; | |
2747 | ||
2748 | if (output_bfd != (bfd *) NULL) | |
2749 | reloc_entry->address += input_section->output_offset; | |
2750 | ||
2751 | return ret; | |
2752 | } | |
2753 | ||
2754 | /* Handle an NDS32 ELF HI20 reloc. */ | |
2755 | ||
2756 | static void | |
2757 | nds32_elf_relocate_hi20 (bfd *input_bfd ATTRIBUTE_UNUSED, | |
fbaf61ad NC |
2758 | int type ATTRIBUTE_UNUSED, |
2759 | Elf_Internal_Rela *relhi, | |
2760 | Elf_Internal_Rela *rello, | |
2761 | bfd_byte *contents, | |
35c08157 KLC |
2762 | bfd_vma addend) |
2763 | { | |
2764 | unsigned long insn; | |
2765 | bfd_vma addlo; | |
2766 | ||
2767 | insn = bfd_getb32 (contents + relhi->r_offset); | |
2768 | ||
2769 | addlo = bfd_getb32 (contents + rello->r_offset); | |
2770 | addlo &= 0xfff; | |
2771 | ||
2772 | addend += ((insn & 0xfffff) << 20) + addlo; | |
2773 | ||
2774 | insn = (insn & 0xfff00000) | ((addend >> 12) & 0xfffff); | |
2775 | bfd_putb32 (insn, contents + relhi->r_offset); | |
2776 | } | |
2777 | ||
2778 | /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit | |
2779 | inplace relocation; this function exists in order to do the | |
2780 | R_NDS32_HI20_[SU]LO relocation described above. */ | |
2781 | ||
2782 | static bfd_reloc_status_type | |
2783 | nds32_elf_lo12_reloc (bfd *input_bfd, arelent *reloc_entry, asymbol *symbol, | |
2784 | void *data, asection *input_section, bfd *output_bfd, | |
2785 | char **error_message) | |
2786 | { | |
2787 | /* This part is from bfd_elf_generic_reloc. | |
2788 | If we're relocating, and this an external symbol, we don't want | |
2789 | to change anything. */ | |
2790 | if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2791 | && reloc_entry->addend == 0) | |
2792 | { | |
2793 | reloc_entry->address += input_section->output_offset; | |
2794 | return bfd_reloc_ok; | |
2795 | } | |
2796 | ||
2797 | if (nds32_hi20_list != NULL) | |
2798 | { | |
2799 | struct nds32_hi20 *l; | |
2800 | ||
2801 | l = nds32_hi20_list; | |
2802 | while (l != NULL) | |
2803 | { | |
2804 | unsigned long insn; | |
2805 | unsigned long val; | |
2806 | unsigned long vallo; | |
2807 | struct nds32_hi20 *next; | |
2808 | ||
2809 | /* Do the HI20 relocation. Note that we actually don't need | |
2810 | to know anything about the LO12 itself, except where to | |
2811 | find the low 12 bits of the addend needed by the LO12. */ | |
2812 | insn = bfd_getb32 (l->addr); | |
2813 | vallo = bfd_getb32 ((bfd_byte *) data + reloc_entry->address); | |
2814 | vallo &= 0xfff; | |
2815 | switch (reloc_entry->howto->type) | |
2816 | { | |
2817 | case R_NDS32_LO12S3: | |
2818 | vallo <<= 3; | |
2819 | break; | |
2820 | ||
2821 | case R_NDS32_LO12S2: | |
2822 | vallo <<= 2; | |
2823 | break; | |
2824 | ||
2825 | case R_NDS32_LO12S1: | |
2826 | vallo <<= 1; | |
2827 | break; | |
2828 | ||
2829 | case R_NDS32_LO12S0: | |
2830 | vallo <<= 0; | |
2831 | break; | |
2832 | } | |
2833 | ||
2834 | val = ((insn & 0xfffff) << 12) + vallo; | |
2835 | val += l->addend; | |
2836 | ||
2837 | insn = (insn & ~(bfd_vma) 0xfffff) | ((val >> 12) & 0xfffff); | |
2838 | bfd_putb32 ((bfd_vma) insn, l->addr); | |
2839 | ||
2840 | next = l->next; | |
2841 | free (l); | |
2842 | l = next; | |
2843 | } | |
2844 | ||
2845 | nds32_hi20_list = NULL; | |
2846 | } | |
2847 | ||
2848 | /* Now do the LO12 reloc in the usual way. | |
2849 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
2850 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
2851 | pass the handling back to bfd_install_relocation which will install | |
2852 | a section relative addend which is wrong. */ | |
2853 | return nds32_elf_generic_reloc (input_bfd, reloc_entry, symbol, data, | |
2854 | input_section, output_bfd, error_message); | |
2855 | } | |
2856 | ||
2857 | /* Do generic partial_inplace relocation. | |
2858 | This is a local replacement for bfd_elf_generic_reloc. */ | |
2859 | ||
2860 | static bfd_reloc_status_type | |
2861 | nds32_elf_generic_reloc (bfd *input_bfd, arelent *reloc_entry, | |
2862 | asymbol *symbol, void *data, asection *input_section, | |
2863 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
2864 | { | |
2865 | bfd_reloc_status_type ret; | |
2866 | bfd_vma relocation; | |
2867 | bfd_byte *inplace_address; | |
2868 | ||
2869 | /* This part is from bfd_elf_generic_reloc. | |
2870 | If we're relocating, and this an external symbol, we don't want | |
2871 | to change anything. */ | |
2872 | if (output_bfd != NULL && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2873 | && reloc_entry->addend == 0) | |
2874 | { | |
2875 | reloc_entry->address += input_section->output_offset; | |
2876 | return bfd_reloc_ok; | |
2877 | } | |
2878 | ||
2879 | /* Now do the reloc in the usual way. | |
2880 | ??? It would be nice to call bfd_elf_generic_reloc here, | |
2881 | but we have partial_inplace set. bfd_elf_generic_reloc will | |
2882 | pass the handling back to bfd_install_relocation which will install | |
2883 | a section relative addend which is wrong. */ | |
2884 | ||
2885 | /* Sanity check the address (offset in section). */ | |
2886 | if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section)) | |
2887 | return bfd_reloc_outofrange; | |
2888 | ||
2889 | ret = bfd_reloc_ok; | |
2890 | if (bfd_is_und_section (symbol->section) && output_bfd == (bfd *) NULL) | |
2891 | ret = bfd_reloc_undefined; | |
2892 | ||
2893 | if (bfd_is_com_section (symbol->section) || output_bfd != (bfd *) NULL) | |
2894 | relocation = 0; | |
2895 | else | |
2896 | relocation = symbol->value; | |
2897 | ||
2898 | /* Only do this for a final link. */ | |
2899 | if (output_bfd == (bfd *) NULL) | |
2900 | { | |
2901 | relocation += symbol->section->output_section->vma; | |
2902 | relocation += symbol->section->output_offset; | |
2903 | } | |
2904 | ||
2905 | relocation += reloc_entry->addend; | |
2906 | switch (reloc_entry->howto->type) | |
2907 | { | |
2908 | case R_NDS32_LO12S3: | |
2909 | relocation >>= 3; | |
2910 | break; | |
2911 | ||
2912 | case R_NDS32_LO12S2: | |
2913 | relocation >>= 2; | |
2914 | break; | |
2915 | ||
2916 | case R_NDS32_LO12S1: | |
2917 | relocation >>= 1; | |
2918 | break; | |
2919 | ||
2920 | case R_NDS32_LO12S0: | |
2921 | default: | |
2922 | relocation >>= 0; | |
2923 | break; | |
2924 | } | |
2925 | ||
2926 | inplace_address = (bfd_byte *) data + reloc_entry->address; | |
2927 | ||
2928 | #define DOIT(x) \ | |
2929 | x = ((x & ~reloc_entry->howto->dst_mask) | \ | |
2930 | (((x & reloc_entry->howto->src_mask) + relocation) & \ | |
2931 | reloc_entry->howto->dst_mask)) | |
2932 | ||
2933 | switch (reloc_entry->howto->size) | |
2934 | { | |
2935 | case 1: | |
2936 | { | |
2937 | short x = bfd_getb16 (inplace_address); | |
2938 | ||
2939 | DOIT (x); | |
2940 | bfd_putb16 ((bfd_vma) x, inplace_address); | |
2941 | } | |
2942 | break; | |
2943 | case 2: | |
2944 | { | |
2945 | unsigned long x = bfd_getb32 (inplace_address); | |
2946 | ||
2947 | DOIT (x); | |
2948 | bfd_putb32 ((bfd_vma) x, inplace_address); | |
2949 | } | |
2950 | break; | |
2951 | default: | |
2952 | BFD_ASSERT (0); | |
2953 | } | |
2954 | ||
2955 | if (output_bfd != (bfd *) NULL) | |
2956 | reloc_entry->address += input_section->output_offset; | |
2957 | ||
2958 | return ret; | |
2959 | } | |
2960 | ||
2961 | /* Handle the R_NDS32_SDA15 reloc. | |
2962 | This reloc is used to compute the address of objects in the small data area | |
2963 | and to perform loads and stores from that area. | |
2964 | The lower 15 bits are sign extended and added to the register specified | |
2965 | in the instruction, which is assumed to point to _SDA_BASE_. | |
2966 | ||
2967 | Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on | |
2968 | the access size, this must be taken care of. */ | |
2969 | ||
2970 | static bfd_reloc_status_type | |
2971 | nds32_elf_sda15_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
2972 | asymbol *symbol, void *data ATTRIBUTE_UNUSED, | |
2973 | asection *input_section, bfd *output_bfd, | |
2974 | char **error_message ATTRIBUTE_UNUSED) | |
2975 | { | |
2976 | /* This part is from bfd_elf_generic_reloc. */ | |
2977 | if (output_bfd != (bfd *) NULL | |
2978 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
2979 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
2980 | { | |
2981 | reloc_entry->address += input_section->output_offset; | |
2982 | return bfd_reloc_ok; | |
2983 | } | |
2984 | ||
2985 | if (output_bfd != NULL) | |
2986 | { | |
2987 | /* FIXME: See bfd_perform_relocation. Is this right? */ | |
2988 | return bfd_reloc_continue; | |
2989 | } | |
2990 | ||
2991 | /* FIXME: not sure what to do here yet. But then again, the linker | |
2992 | may never call us. */ | |
2993 | abort (); | |
2994 | } | |
2995 | ||
2996 | /* nds32_elf_ignore_reloc is the special function for | |
2997 | relocation types which don't need to be relocated | |
2998 | like relaxation relocation types. | |
2999 | This function simply return bfd_reloc_ok when it is | |
3000 | invoked. */ | |
3001 | ||
3002 | static bfd_reloc_status_type | |
3003 | nds32_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, | |
3004 | asymbol *symbol ATTRIBUTE_UNUSED, | |
3005 | void *data ATTRIBUTE_UNUSED, asection *input_section, | |
3006 | bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) | |
3007 | { | |
3008 | if (output_bfd != NULL) | |
3009 | reloc_entry->address += input_section->output_offset; | |
3010 | ||
3011 | return bfd_reloc_ok; | |
3012 | } | |
3013 | \f | |
3014 | ||
3015 | /* Map BFD reloc types to NDS32 ELF reloc types. */ | |
3016 | ||
3017 | struct nds32_reloc_map_entry | |
3018 | { | |
3019 | bfd_reloc_code_real_type bfd_reloc_val; | |
3020 | unsigned char elf_reloc_val; | |
3021 | }; | |
3022 | ||
3023 | static const struct nds32_reloc_map_entry nds32_reloc_map[] = | |
3024 | { | |
3025 | {BFD_RELOC_NONE, R_NDS32_NONE}, | |
3026 | {BFD_RELOC_16, R_NDS32_16_RELA}, | |
3027 | {BFD_RELOC_32, R_NDS32_32_RELA}, | |
fbaf61ad NC |
3028 | {BFD_RELOC_VTABLE_INHERIT, R_NDS32_RELA_GNU_VTINHERIT}, |
3029 | {BFD_RELOC_VTABLE_ENTRY, R_NDS32_RELA_GNU_VTENTRY}, | |
3030 | ||
35c08157 | 3031 | {BFD_RELOC_NDS32_20, R_NDS32_20_RELA}, |
35c08157 KLC |
3032 | {BFD_RELOC_NDS32_9_PCREL, R_NDS32_9_PCREL_RELA}, |
3033 | {BFD_RELOC_NDS32_WORD_9_PCREL, R_NDS32_WORD_9_PCREL_RELA}, | |
3034 | {BFD_RELOC_NDS32_15_PCREL, R_NDS32_15_PCREL_RELA}, | |
3035 | {BFD_RELOC_NDS32_17_PCREL, R_NDS32_17_PCREL_RELA}, | |
3036 | {BFD_RELOC_NDS32_25_PCREL, R_NDS32_25_PCREL_RELA}, | |
35c08157 KLC |
3037 | {BFD_RELOC_NDS32_HI20, R_NDS32_HI20_RELA}, |
3038 | {BFD_RELOC_NDS32_LO12S3, R_NDS32_LO12S3_RELA}, | |
3039 | {BFD_RELOC_NDS32_LO12S2, R_NDS32_LO12S2_RELA}, | |
3040 | {BFD_RELOC_NDS32_LO12S1, R_NDS32_LO12S1_RELA}, | |
3041 | {BFD_RELOC_NDS32_LO12S0, R_NDS32_LO12S0_RELA}, | |
3042 | {BFD_RELOC_NDS32_LO12S0_ORI, R_NDS32_LO12S0_ORI_RELA}, | |
3043 | {BFD_RELOC_NDS32_SDA15S3, R_NDS32_SDA15S3_RELA}, | |
3044 | {BFD_RELOC_NDS32_SDA15S2, R_NDS32_SDA15S2_RELA}, | |
3045 | {BFD_RELOC_NDS32_SDA15S1, R_NDS32_SDA15S1_RELA}, | |
3046 | {BFD_RELOC_NDS32_SDA15S0, R_NDS32_SDA15S0_RELA}, | |
fbaf61ad NC |
3047 | {BFD_RELOC_NDS32_SDA16S3, R_NDS32_SDA16S3_RELA}, |
3048 | {BFD_RELOC_NDS32_SDA17S2, R_NDS32_SDA17S2_RELA}, | |
3049 | {BFD_RELOC_NDS32_SDA18S1, R_NDS32_SDA18S1_RELA}, | |
3050 | {BFD_RELOC_NDS32_SDA19S0, R_NDS32_SDA19S0_RELA}, | |
35c08157 KLC |
3051 | {BFD_RELOC_NDS32_GOT20, R_NDS32_GOT20}, |
3052 | {BFD_RELOC_NDS32_9_PLTREL, R_NDS32_9_PLTREL}, | |
3053 | {BFD_RELOC_NDS32_25_PLTREL, R_NDS32_25_PLTREL}, | |
3054 | {BFD_RELOC_NDS32_COPY, R_NDS32_COPY}, | |
3055 | {BFD_RELOC_NDS32_GLOB_DAT, R_NDS32_GLOB_DAT}, | |
3056 | {BFD_RELOC_NDS32_JMP_SLOT, R_NDS32_JMP_SLOT}, | |
3057 | {BFD_RELOC_NDS32_RELATIVE, R_NDS32_RELATIVE}, | |
3058 | {BFD_RELOC_NDS32_GOTOFF, R_NDS32_GOTOFF}, | |
fbaf61ad NC |
3059 | {BFD_RELOC_NDS32_GOTOFF_HI20, R_NDS32_GOTOFF_HI20}, |
3060 | {BFD_RELOC_NDS32_GOTOFF_LO12, R_NDS32_GOTOFF_LO12}, | |
35c08157 KLC |
3061 | {BFD_RELOC_NDS32_GOTPC20, R_NDS32_GOTPC20}, |
3062 | {BFD_RELOC_NDS32_GOT_HI20, R_NDS32_GOT_HI20}, | |
3063 | {BFD_RELOC_NDS32_GOT_LO12, R_NDS32_GOT_LO12}, | |
35c08157 KLC |
3064 | {BFD_RELOC_NDS32_GOTPC_HI20, R_NDS32_GOTPC_HI20}, |
3065 | {BFD_RELOC_NDS32_GOTPC_LO12, R_NDS32_GOTPC_LO12}, | |
35c08157 KLC |
3066 | {BFD_RELOC_NDS32_INSN16, R_NDS32_INSN16}, |
3067 | {BFD_RELOC_NDS32_LABEL, R_NDS32_LABEL}, | |
3068 | {BFD_RELOC_NDS32_LONGCALL1, R_NDS32_LONGCALL1}, | |
3069 | {BFD_RELOC_NDS32_LONGCALL2, R_NDS32_LONGCALL2}, | |
3070 | {BFD_RELOC_NDS32_LONGCALL3, R_NDS32_LONGCALL3}, | |
3071 | {BFD_RELOC_NDS32_LONGJUMP1, R_NDS32_LONGJUMP1}, | |
3072 | {BFD_RELOC_NDS32_LONGJUMP2, R_NDS32_LONGJUMP2}, | |
3073 | {BFD_RELOC_NDS32_LONGJUMP3, R_NDS32_LONGJUMP3}, | |
3074 | {BFD_RELOC_NDS32_LOADSTORE, R_NDS32_LOADSTORE}, | |
3075 | {BFD_RELOC_NDS32_9_FIXED, R_NDS32_9_FIXED_RELA}, | |
3076 | {BFD_RELOC_NDS32_15_FIXED, R_NDS32_15_FIXED_RELA}, | |
3077 | {BFD_RELOC_NDS32_17_FIXED, R_NDS32_17_FIXED_RELA}, | |
3078 | {BFD_RELOC_NDS32_25_FIXED, R_NDS32_25_FIXED_RELA}, | |
fbaf61ad NC |
3079 | {BFD_RELOC_NDS32_LONGCALL4, R_NDS32_LONGCALL4}, |
3080 | {BFD_RELOC_NDS32_LONGCALL5, R_NDS32_LONGCALL5}, | |
3081 | {BFD_RELOC_NDS32_LONGCALL6, R_NDS32_LONGCALL6}, | |
3082 | {BFD_RELOC_NDS32_LONGJUMP4, R_NDS32_LONGJUMP4}, | |
3083 | {BFD_RELOC_NDS32_LONGJUMP5, R_NDS32_LONGJUMP5}, | |
3084 | {BFD_RELOC_NDS32_LONGJUMP6, R_NDS32_LONGJUMP6}, | |
3085 | {BFD_RELOC_NDS32_LONGJUMP7, R_NDS32_LONGJUMP7}, | |
35c08157 KLC |
3086 | {BFD_RELOC_NDS32_PLTREL_HI20, R_NDS32_PLTREL_HI20}, |
3087 | {BFD_RELOC_NDS32_PLTREL_LO12, R_NDS32_PLTREL_LO12}, | |
3088 | {BFD_RELOC_NDS32_PLT_GOTREL_HI20, R_NDS32_PLT_GOTREL_HI20}, | |
3089 | {BFD_RELOC_NDS32_PLT_GOTREL_LO12, R_NDS32_PLT_GOTREL_LO12}, | |
35c08157 KLC |
3090 | {BFD_RELOC_NDS32_SDA12S2_DP, R_NDS32_SDA12S2_DP_RELA}, |
3091 | {BFD_RELOC_NDS32_SDA12S2_SP, R_NDS32_SDA12S2_SP_RELA}, | |
3092 | {BFD_RELOC_NDS32_LO12S2_DP, R_NDS32_LO12S2_DP_RELA}, | |
3093 | {BFD_RELOC_NDS32_LO12S2_SP, R_NDS32_LO12S2_SP_RELA}, | |
35c08157 KLC |
3094 | {BFD_RELOC_NDS32_DWARF2_OP1, R_NDS32_DWARF2_OP1_RELA}, |
3095 | {BFD_RELOC_NDS32_DWARF2_OP2, R_NDS32_DWARF2_OP2_RELA}, | |
3096 | {BFD_RELOC_NDS32_DWARF2_LEB, R_NDS32_DWARF2_LEB_RELA}, | |
3097 | {BFD_RELOC_NDS32_UPDATE_TA, R_NDS32_UPDATE_TA_RELA}, | |
fbaf61ad NC |
3098 | {BFD_RELOC_NDS32_PLT_GOTREL_LO20, R_NDS32_PLT_GOTREL_LO20}, |
3099 | {BFD_RELOC_NDS32_PLT_GOTREL_LO15, R_NDS32_PLT_GOTREL_LO15}, | |
3100 | {BFD_RELOC_NDS32_PLT_GOTREL_LO19, R_NDS32_PLT_GOTREL_LO19}, | |
3101 | {BFD_RELOC_NDS32_GOT_LO15, R_NDS32_GOT_LO15}, | |
3102 | {BFD_RELOC_NDS32_GOT_LO19, R_NDS32_GOT_LO19}, | |
3103 | {BFD_RELOC_NDS32_GOTOFF_LO15, R_NDS32_GOTOFF_LO15}, | |
3104 | {BFD_RELOC_NDS32_GOTOFF_LO19, R_NDS32_GOTOFF_LO19}, | |
35c08157 KLC |
3105 | {BFD_RELOC_NDS32_GOT15S2, R_NDS32_GOT15S2_RELA}, |
3106 | {BFD_RELOC_NDS32_GOT17S2, R_NDS32_GOT17S2_RELA}, | |
fbaf61ad NC |
3107 | {BFD_RELOC_NDS32_5, R_NDS32_5_RELA}, |
3108 | {BFD_RELOC_NDS32_10_UPCREL, R_NDS32_10_UPCREL_RELA}, | |
3109 | {BFD_RELOC_NDS32_SDA_FP7U2_RELA, R_NDS32_SDA_FP7U2_RELA}, | |
3110 | {BFD_RELOC_NDS32_RELAX_ENTRY, R_NDS32_RELAX_ENTRY}, | |
3111 | {BFD_RELOC_NDS32_GOT_SUFF, R_NDS32_GOT_SUFF}, | |
3112 | {BFD_RELOC_NDS32_GOTOFF_SUFF, R_NDS32_GOTOFF_SUFF}, | |
3113 | {BFD_RELOC_NDS32_PLT_GOT_SUFF, R_NDS32_PLT_GOT_SUFF}, | |
3114 | {BFD_RELOC_NDS32_MULCALL_SUFF, R_NDS32_MULCALL_SUFF}, | |
35c08157 KLC |
3115 | {BFD_RELOC_NDS32_PTR, R_NDS32_PTR}, |
3116 | {BFD_RELOC_NDS32_PTR_COUNT, R_NDS32_PTR_COUNT}, | |
35c08157 | 3117 | {BFD_RELOC_NDS32_PTR_RESOLVED, R_NDS32_PTR_RESOLVED}, |
35c08157 KLC |
3118 | {BFD_RELOC_NDS32_PLTBLOCK, R_NDS32_PLTBLOCK}, |
3119 | {BFD_RELOC_NDS32_RELAX_REGION_BEGIN, R_NDS32_RELAX_REGION_BEGIN}, | |
3120 | {BFD_RELOC_NDS32_RELAX_REGION_END, R_NDS32_RELAX_REGION_END}, | |
3121 | {BFD_RELOC_NDS32_MINUEND, R_NDS32_MINUEND}, | |
3122 | {BFD_RELOC_NDS32_SUBTRAHEND, R_NDS32_SUBTRAHEND}, | |
35c08157 KLC |
3123 | {BFD_RELOC_NDS32_DIFF8, R_NDS32_DIFF8}, |
3124 | {BFD_RELOC_NDS32_DIFF16, R_NDS32_DIFF16}, | |
3125 | {BFD_RELOC_NDS32_DIFF32, R_NDS32_DIFF32}, | |
3126 | {BFD_RELOC_NDS32_DIFF_ULEB128, R_NDS32_DIFF_ULEB128}, | |
fbaf61ad | 3127 | {BFD_RELOC_NDS32_EMPTY, R_NDS32_EMPTY}, |
35c08157 KLC |
3128 | {BFD_RELOC_NDS32_25_ABS, R_NDS32_25_ABS_RELA}, |
3129 | {BFD_RELOC_NDS32_DATA, R_NDS32_DATA}, | |
3130 | {BFD_RELOC_NDS32_TRAN, R_NDS32_TRAN}, | |
3131 | {BFD_RELOC_NDS32_17IFC_PCREL, R_NDS32_17IFC_PCREL_RELA}, | |
3132 | {BFD_RELOC_NDS32_10IFCU_PCREL, R_NDS32_10IFCU_PCREL_RELA}, | |
fbaf61ad NC |
3133 | /* Not sure. */ |
3134 | {BFD_RELOC_NDS32_TPOFF, R_NDS32_TLS_TPOFF}, | |
3135 | /* Missing: BFD_RELOC_NDS32_GOTTPOFF. */ | |
1c8f6a4d KLC |
3136 | {BFD_RELOC_NDS32_TLS_LE_HI20, R_NDS32_TLS_LE_HI20}, |
3137 | {BFD_RELOC_NDS32_TLS_LE_LO12, R_NDS32_TLS_LE_LO12}, | |
1c8f6a4d KLC |
3138 | {BFD_RELOC_NDS32_TLS_LE_20, R_NDS32_TLS_LE_20}, |
3139 | {BFD_RELOC_NDS32_TLS_LE_15S0, R_NDS32_TLS_LE_15S0}, | |
3140 | {BFD_RELOC_NDS32_TLS_LE_15S1, R_NDS32_TLS_LE_15S1}, | |
3141 | {BFD_RELOC_NDS32_TLS_LE_15S2, R_NDS32_TLS_LE_15S2}, | |
fbaf61ad NC |
3142 | {BFD_RELOC_NDS32_TLS_LE_ADD, R_NDS32_TLS_LE_ADD}, |
3143 | {BFD_RELOC_NDS32_TLS_LE_LS, R_NDS32_TLS_LE_LS}, | |
3144 | {BFD_RELOC_NDS32_TLS_IE_HI20, R_NDS32_TLS_IE_HI20}, | |
3145 | {BFD_RELOC_NDS32_TLS_IE_LO12, R_NDS32_TLS_IE_LO12}, | |
3146 | {BFD_RELOC_NDS32_TLS_IE_LO12S2, R_NDS32_TLS_IE_LO12S2}, | |
3147 | {BFD_RELOC_NDS32_TLS_IEGP_HI20, R_NDS32_TLS_IEGP_HI20}, | |
3148 | {BFD_RELOC_NDS32_TLS_IEGP_LO12, R_NDS32_TLS_IEGP_LO12}, | |
3149 | {BFD_RELOC_NDS32_TLS_IEGP_LO12S2, R_NDS32_TLS_IEGP_LO12S2}, | |
3150 | {BFD_RELOC_NDS32_TLS_IEGP_LW, R_NDS32_TLS_IEGP_LW}, | |
3151 | {BFD_RELOC_NDS32_TLS_DESC, R_NDS32_TLS_DESC}, | |
3152 | {BFD_RELOC_NDS32_TLS_DESC_HI20, R_NDS32_TLS_DESC_HI20}, | |
3153 | {BFD_RELOC_NDS32_TLS_DESC_LO12, R_NDS32_TLS_DESC_LO12}, | |
3154 | {BFD_RELOC_NDS32_TLS_DESC_20, R_NDS32_TLS_DESC_20}, | |
3155 | {BFD_RELOC_NDS32_TLS_DESC_SDA17S2, R_NDS32_TLS_DESC_SDA17S2}, | |
3156 | {BFD_RELOC_NDS32_TLS_DESC_ADD, R_NDS32_TLS_DESC_ADD}, | |
3157 | {BFD_RELOC_NDS32_TLS_DESC_FUNC, R_NDS32_TLS_DESC_FUNC}, | |
3158 | {BFD_RELOC_NDS32_TLS_DESC_CALL, R_NDS32_TLS_DESC_CALL}, | |
3159 | {BFD_RELOC_NDS32_TLS_DESC_MEM, R_NDS32_TLS_DESC_MEM}, | |
3160 | {BFD_RELOC_NDS32_REMOVE, R_NDS32_RELAX_REMOVE}, | |
3161 | {BFD_RELOC_NDS32_GROUP, R_NDS32_RELAX_GROUP}, | |
3162 | {BFD_RELOC_NDS32_LSI, R_NDS32_LSI}, | |
35c08157 KLC |
3163 | }; |
3164 | ||
3165 | /* Patch tag. */ | |
3166 | ||
3167 | static reloc_howto_type * | |
3168 | bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
3169 | const char *r_name) | |
3170 | { | |
3171 | unsigned int i; | |
3172 | ||
3173 | for (i = 0; i < ARRAY_SIZE (nds32_elf_howto_table); i++) | |
3174 | if (nds32_elf_howto_table[i].name != NULL | |
3175 | && strcasecmp (nds32_elf_howto_table[i].name, r_name) == 0) | |
3176 | return &nds32_elf_howto_table[i]; | |
3177 | ||
3178 | for (i = 0; i < ARRAY_SIZE (nds32_elf_relax_howto_table); i++) | |
3179 | if (nds32_elf_relax_howto_table[i].name != NULL | |
3180 | && strcasecmp (nds32_elf_relax_howto_table[i].name, r_name) == 0) | |
3181 | return &nds32_elf_relax_howto_table[i]; | |
3182 | ||
3183 | return NULL; | |
3184 | } | |
3185 | ||
3186 | static reloc_howto_type * | |
3187 | bfd_elf32_bfd_reloc_type_table_lookup (enum elf_nds32_reloc_type code) | |
3188 | { | |
3189 | if (code < R_NDS32_RELAX_ENTRY) | |
3190 | { | |
3191 | BFD_ASSERT (code < ARRAY_SIZE (nds32_elf_howto_table)); | |
3192 | return &nds32_elf_howto_table[code]; | |
3193 | } | |
3194 | else | |
3195 | { | |
fbaf61ad NC |
3196 | if ((size_t) (code - R_NDS32_RELAX_ENTRY) |
3197 | >= ARRAY_SIZE (nds32_elf_relax_howto_table)) | |
3198 | { | |
3199 | int i = code; | |
3200 | i += 1; | |
3201 | } | |
3202 | ||
35c08157 KLC |
3203 | BFD_ASSERT ((size_t) (code - R_NDS32_RELAX_ENTRY) |
3204 | < ARRAY_SIZE (nds32_elf_relax_howto_table)); | |
3205 | return &nds32_elf_relax_howto_table[code - R_NDS32_RELAX_ENTRY]; | |
3206 | } | |
3207 | } | |
3208 | ||
3209 | static reloc_howto_type * | |
3210 | bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
3211 | bfd_reloc_code_real_type code) | |
3212 | { | |
3213 | unsigned int i; | |
3214 | ||
3215 | for (i = 0; i < ARRAY_SIZE (nds32_reloc_map); i++) | |
3216 | { | |
3217 | if (nds32_reloc_map[i].bfd_reloc_val == code) | |
3218 | return bfd_elf32_bfd_reloc_type_table_lookup | |
fbaf61ad | 3219 | (nds32_reloc_map[i].elf_reloc_val); |
35c08157 KLC |
3220 | } |
3221 | ||
3222 | return NULL; | |
3223 | } | |
3224 | ||
3225 | /* Set the howto pointer for an NDS32 ELF reloc. */ | |
3226 | ||
f3185997 NC |
3227 | static bfd_boolean |
3228 | nds32_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, | |
35c08157 KLC |
3229 | Elf_Internal_Rela *dst) |
3230 | { | |
3231 | enum elf_nds32_reloc_type r_type; | |
3232 | ||
3233 | r_type = ELF32_R_TYPE (dst->r_info); | |
5860e3f8 NC |
3234 | if (r_type > R_NDS32_GNU_VTENTRY) |
3235 | { | |
695344c0 | 3236 | /* xgettext:c-format */ |
0aa13fee AM |
3237 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
3238 | abfd, r_type); | |
f3185997 NC |
3239 | bfd_set_error (bfd_error_bad_value); |
3240 | return FALSE; | |
5860e3f8 | 3241 | } |
fbaf61ad NC |
3242 | |
3243 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) <= R_NDS32_GNU_VTENTRY); | |
35c08157 | 3244 | cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); |
f3185997 | 3245 | return TRUE; |
35c08157 KLC |
3246 | } |
3247 | ||
f3185997 | 3248 | static bfd_boolean |
35c08157 KLC |
3249 | nds32_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
3250 | Elf_Internal_Rela *dst) | |
3251 | { | |
f3185997 NC |
3252 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); |
3253 | ||
3254 | if ((r_type == R_NDS32_NONE) | |
3255 | || ((r_type > R_NDS32_GNU_VTENTRY) | |
3256 | && (r_type < R_NDS32_max))) | |
3257 | { | |
3258 | cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); | |
3259 | return TRUE; | |
3260 | } | |
3261 | ||
3262 | /* xgettext:c-format */ | |
3263 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type); | |
3264 | bfd_set_error (bfd_error_bad_value); | |
fbaf61ad | 3265 | return FALSE; |
35c08157 KLC |
3266 | } |
3267 | ||
3268 | /* Support for core dump NOTE sections. | |
3269 | Reference to include/linux/elfcore.h in Linux. */ | |
3270 | ||
3271 | static bfd_boolean | |
3272 | nds32_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
3273 | { | |
3274 | int offset; | |
3275 | size_t size; | |
3276 | ||
3277 | switch (note->descsz) | |
3278 | { | |
3279 | case 0x114: | |
fbaf61ad | 3280 | /* Linux/NDS32 32-bit, ABI1. */ |
35c08157 KLC |
3281 | |
3282 | /* pr_cursig */ | |
3283 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
3284 | ||
3285 | /* pr_pid */ | |
3286 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); | |
3287 | ||
3288 | /* pr_reg */ | |
3289 | offset = 72; | |
3290 | size = 200; | |
3291 | break; | |
3292 | ||
3293 | case 0xfc: | |
fbaf61ad | 3294 | /* Linux/NDS32 32-bit. */ |
35c08157 KLC |
3295 | |
3296 | /* pr_cursig */ | |
3297 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); | |
3298 | ||
3299 | /* pr_pid */ | |
3300 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); | |
3301 | ||
3302 | /* pr_reg */ | |
3303 | offset = 72; | |
3304 | size = 176; | |
3305 | break; | |
3306 | ||
3307 | default: | |
3308 | return FALSE; | |
3309 | } | |
3310 | ||
3311 | /* Make a ".reg" section. */ | |
3312 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
3313 | size, note->descpos + offset); | |
3314 | } | |
3315 | ||
3316 | static bfd_boolean | |
3317 | nds32_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
3318 | { | |
3319 | switch (note->descsz) | |
3320 | { | |
3321 | case 124: | |
fbaf61ad | 3322 | /* Linux/NDS32. */ |
35c08157 KLC |
3323 | |
3324 | /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */ | |
3325 | elf_tdata (abfd)->core->program = | |
3326 | _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
3327 | elf_tdata (abfd)->core->command = | |
3328 | _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
2b804145 | 3329 | break; |
35c08157 KLC |
3330 | |
3331 | default: | |
3332 | return FALSE; | |
3333 | } | |
3334 | ||
3335 | /* Note that for some reason, a spurious space is tacked | |
3336 | onto the end of the args in some (at least one anyway) | |
3337 | implementations, so strip it off if it exists. */ | |
3338 | { | |
3339 | char *command = elf_tdata (abfd)->core->command; | |
3340 | int n = strlen (command); | |
3341 | ||
3342 | if (0 < n && command[n - 1] == ' ') | |
3343 | command[n - 1] = '\0'; | |
3344 | } | |
3345 | ||
3346 | return TRUE; | |
3347 | } | |
3348 | ||
3349 | /* Hook called by the linker routine which adds symbols from an object | |
3350 | file. We must handle the special NDS32 section numbers here. | |
3351 | We also keep watching for whether we need to create the sdata special | |
3352 | linker sections. */ | |
3353 | ||
3354 | static bfd_boolean | |
3355 | nds32_elf_add_symbol_hook (bfd *abfd, | |
3356 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3357 | Elf_Internal_Sym *sym, | |
3358 | const char **namep ATTRIBUTE_UNUSED, | |
3359 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3360 | asection **secp, bfd_vma *valp) | |
3361 | { | |
3362 | switch (sym->st_shndx) | |
3363 | { | |
3364 | case SHN_COMMON: | |
3365 | /* Common symbols less than the GP size are automatically | |
3366 | treated as SHN_MIPS_SCOMMON symbols. */ | |
3367 | if (sym->st_size > elf_gp_size (abfd) | |
3368 | || ELF_ST_TYPE (sym->st_info) == STT_TLS) | |
3369 | break; | |
3370 | ||
10885e24 | 3371 | /* st_value is the alignment constraint. |
35c08157 KLC |
3372 | That might be its actual size if it is an array or structure. */ |
3373 | switch (sym->st_value) | |
3374 | { | |
3375 | case 1: | |
3376 | *secp = bfd_make_section_old_way (abfd, ".scommon_b"); | |
3377 | break; | |
3378 | case 2: | |
3379 | *secp = bfd_make_section_old_way (abfd, ".scommon_h"); | |
3380 | break; | |
3381 | case 4: | |
3382 | *secp = bfd_make_section_old_way (abfd, ".scommon_w"); | |
3383 | break; | |
3384 | case 8: | |
3385 | *secp = bfd_make_section_old_way (abfd, ".scommon_d"); | |
3386 | break; | |
3387 | default: | |
3388 | return TRUE; | |
3389 | } | |
3390 | ||
10885e24 | 3391 | (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA; |
35c08157 KLC |
3392 | *valp = sym->st_size; |
3393 | break; | |
3394 | } | |
3395 | ||
3396 | return TRUE; | |
3397 | } | |
3398 | ||
35c08157 KLC |
3399 | /* This function can figure out the best location for a base register to access |
3400 | data relative to this base register | |
3401 | INPUT: | |
3402 | sda_d0: size of first DOUBLE WORD data section | |
3403 | sda_w0: size of first WORD data section | |
3404 | sda_h0: size of first HALF WORD data section | |
3405 | sda_b : size of BYTE data section | |
3406 | sda_hi: size of second HALF WORD data section | |
3407 | sda_w1: size of second WORD data section | |
3408 | sda_d1: size of second DOUBLE WORD data section | |
3409 | OUTPUT: | |
3410 | offset (always positive) from the beginning of sda_d0 if OK | |
3411 | a negative error value if fail | |
3412 | NOTE: | |
3413 | these 7 sections have to be located back to back if exist | |
3414 | a pass in 0 value for non-existing section */ | |
3415 | ||
3416 | /* Due to the interpretation of simm15 field of load/store depending on | |
3417 | data accessing size, the organization of base register relative data shall | |
3418 | like the following figure | |
3419 | ------------------------------------------- | |
3420 | | DOUBLE WORD sized data (range +/- 128K) | |
3421 | ------------------------------------------- | |
3422 | | WORD sized data (range +/- 64K) | |
3423 | ------------------------------------------- | |
3424 | | HALF WORD sized data (range +/- 32K) | |
3425 | ------------------------------------------- | |
3426 | | BYTE sized data (range +/- 16K) | |
3427 | ------------------------------------------- | |
3428 | | HALF WORD sized data (range +/- 32K) | |
3429 | ------------------------------------------- | |
3430 | | WORD sized data (range +/- 64K) | |
3431 | ------------------------------------------- | |
3432 | | DOUBLE WORD sized data (range +/- 128K) | |
3433 | ------------------------------------------- | |
3434 | Its base register shall be set to access these data freely. */ | |
3435 | ||
3436 | /* We have to figure out the SDA_BASE value, so that we can adjust the | |
3437 | symbol value correctly. We look up the symbol _SDA_BASE_ in the output | |
3438 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
3439 | target data. We don't need to adjust the symbol value for an | |
3440 | external symbol if we are producing relocatable output. */ | |
3441 | ||
3442 | static asection *sda_rela_sec = NULL; | |
3443 | ||
1c8f6a4d | 3444 | #define SDA_SECTION_NUM 10 |
35c08157 KLC |
3445 | |
3446 | static bfd_reloc_status_type | |
fbaf61ad NC |
3447 | nds32_elf_final_sda_base (bfd * output_bfd, |
3448 | struct bfd_link_info * info, | |
3449 | bfd_vma * psb, | |
3450 | bfd_boolean add_symbol) | |
35c08157 KLC |
3451 | { |
3452 | int relax_fp_as_gp; | |
3453 | struct elf_nds32_link_hash_table *table; | |
3454 | struct bfd_link_hash_entry *h, *h2; | |
1c8f6a4d | 3455 | long unsigned int total = 0; |
fbaf61ad NC |
3456 | asection *first = NULL, *final = NULL, *temp; |
3457 | bfd_vma sda_base = 0; | |
35c08157 KLC |
3458 | |
3459 | h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE); | |
fbaf61ad NC |
3460 | if (!h || (h->type != bfd_link_hash_defined |
3461 | && h->type != bfd_link_hash_defweak)) | |
35c08157 | 3462 | { |
35c08157 KLC |
3463 | /* The first section must be 4-byte aligned to promise _SDA_BASE_ being |
3464 | 4 byte-aligned. Therefore, it has to set the first section ".data" | |
3465 | 4 byte-aligned. */ | |
3466 | static const char sec_name[SDA_SECTION_NUM][10] = | |
3467 | { | |
3468 | ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b", | |
1c8f6a4d | 3469 | ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d" |
35c08157 KLC |
3470 | }; |
3471 | size_t i = 0; | |
3472 | ||
3473 | if (output_bfd->sections == NULL) | |
3474 | { | |
3475 | *psb = elf_gp (output_bfd); | |
3476 | return bfd_reloc_ok; | |
3477 | } | |
3478 | ||
3479 | /* Get the first and final section. */ | |
fbaf61ad | 3480 | while (i < ARRAY_SIZE (sec_name)) |
35c08157 KLC |
3481 | { |
3482 | temp = bfd_get_section_by_name (output_bfd, sec_name[i]); | |
3483 | if (temp && !first && (temp->size != 0 || temp->rawsize != 0)) | |
3484 | first = temp; | |
3485 | if (temp && (temp->size != 0 || temp->rawsize != 0)) | |
3486 | final = temp; | |
1c8f6a4d KLC |
3487 | |
3488 | /* Summarize the sections in order to check if joining .bss. */ | |
3489 | if (temp && temp->size != 0) | |
3490 | total += temp->size; | |
3491 | else if (temp && temp->rawsize != 0) | |
3492 | total += temp->rawsize; | |
3493 | ||
35c08157 KLC |
3494 | i++; |
3495 | } | |
3496 | ||
1c8f6a4d KLC |
3497 | /* Check .bss size. */ |
3498 | temp = bfd_get_section_by_name (output_bfd, ".bss"); | |
3499 | if (temp) | |
3500 | { | |
3501 | if (temp->size != 0) | |
3502 | total += temp->size; | |
3503 | else if (temp->rawsize != 0) | |
3504 | total += temp->rawsize; | |
3505 | ||
3506 | if (total < 0x80000) | |
3507 | { | |
3508 | if (!first && (temp->size != 0 || temp->rawsize != 0)) | |
3509 | first = temp; | |
3510 | if ((temp->size != 0 || temp->rawsize != 0)) | |
3511 | final = temp; | |
3512 | } | |
3513 | } | |
3514 | ||
35c08157 KLC |
3515 | if (first && final) |
3516 | { | |
3517 | /* The middle of data region. */ | |
1c8f6a4d | 3518 | sda_base = final->vma / 2 + final->rawsize / 2 + first->vma / 2; |
35c08157 KLC |
3519 | |
3520 | /* Find the section sda_base located. */ | |
3521 | i = 0; | |
fbaf61ad | 3522 | while (i < ARRAY_SIZE (sec_name)) |
35c08157 KLC |
3523 | { |
3524 | final = bfd_get_section_by_name (output_bfd, sec_name[i]); | |
3525 | if (final && (final->size != 0 || final->rawsize != 0) | |
3526 | && sda_base >= final->vma) | |
3527 | { | |
3528 | first = final; | |
3529 | i++; | |
3530 | } | |
3531 | else | |
3532 | break; | |
3533 | } | |
3534 | } | |
3535 | else | |
3536 | { | |
fbaf61ad NC |
3537 | /* If there is not any default data section in output bfd, try to find |
3538 | the first data section. If no data section be found, just simplily | |
3539 | choose the first output section. */ | |
3540 | temp = output_bfd->sections; | |
3541 | while (temp) | |
3542 | { | |
3543 | if (temp->flags & SEC_ALLOC | |
3544 | && (((temp->flags & SEC_DATA) | |
3545 | && ((temp->flags & SEC_READONLY) == 0)) | |
3546 | || (temp->flags & SEC_LOAD) == 0) | |
3547 | && (temp->size != 0 || temp->rawsize != 0)) | |
3548 | { | |
3549 | if (!first) | |
3550 | first = temp; | |
3551 | final = temp; | |
3552 | } | |
3553 | temp = temp->next; | |
3554 | } | |
3555 | ||
3556 | /* There is no data or bss section. */ | |
3557 | if (!first || (first->size == 0 && first->rawsize == 0)) | |
3558 | { | |
3559 | first = output_bfd->sections; | |
3560 | while (first && first->size == 0 && first->rawsize == 0) | |
3561 | first = first->next; | |
3562 | } | |
3563 | ||
3564 | /* There is no concrete section. */ | |
35c08157 KLC |
3565 | if (!first) |
3566 | { | |
3567 | *psb = elf_gp (output_bfd); | |
3568 | return bfd_reloc_ok; | |
3569 | } | |
fbaf61ad NC |
3570 | |
3571 | if (final && (final->vma + final->rawsize - first->vma) <= 0x4000) | |
3572 | sda_base = final->vma / 2 + final->rawsize / 2 + first->vma / 2; | |
3573 | else | |
3574 | sda_base = first->vma + 0x2000; | |
35c08157 KLC |
3575 | } |
3576 | ||
3577 | sda_base -= first->vma; | |
3578 | sda_base = sda_base & (~7); | |
3579 | ||
3580 | if (!_bfd_generic_link_add_one_symbol | |
fbaf61ad NC |
3581 | (info, output_bfd, "_SDA_BASE_", BSF_GLOBAL | BSF_WEAK, first, |
3582 | (bfd_vma) sda_base, (const char *) NULL, FALSE, | |
3583 | get_elf_backend_data (output_bfd)->collect, &h)) | |
35c08157 KLC |
3584 | return FALSE; |
3585 | ||
3586 | sda_rela_sec = first; | |
fbaf61ad | 3587 | } |
35c08157 | 3588 | |
fbaf61ad NC |
3589 | /* Set _FP_BASE_ to _SDA_BASE_. */ |
3590 | table = nds32_elf_hash_table (info); | |
3591 | relax_fp_as_gp = table->relax_fp_as_gp; | |
3592 | h2 = bfd_link_hash_lookup (info->hash, FP_BASE_NAME, FALSE, FALSE, FALSE); | |
3593 | /* _SDA_BASE_ is difined in linker script. */ | |
3594 | if (!first) | |
3595 | { | |
3596 | first = h->u.def.section; | |
3597 | sda_base = h->u.def.value; | |
3598 | } | |
3599 | ||
3600 | if (relax_fp_as_gp && h2 | |
3601 | && (h2->type == bfd_link_hash_undefweak | |
3602 | || h2->type == bfd_link_hash_undefined)) | |
3603 | { | |
3604 | /* Define a weak FP_BASE_NAME here to prevent the undefined symbol. | |
3605 | And set FP equal to SDA_BASE to do relaxation for | |
3606 | la $fp, _FP_BASE_. */ | |
3607 | if (!_bfd_generic_link_add_one_symbol | |
3608 | (info, output_bfd, FP_BASE_NAME, BSF_GLOBAL | BSF_WEAK, | |
3609 | first, sda_base, (const char *) NULL, | |
3610 | FALSE, get_elf_backend_data (output_bfd)->collect, &h2)) | |
3611 | return FALSE; | |
35c08157 KLC |
3612 | } |
3613 | ||
535b785f | 3614 | if (add_symbol) |
35c08157 KLC |
3615 | { |
3616 | if (h) | |
3617 | { | |
3618 | /* Now set gp. */ | |
3619 | elf_gp (output_bfd) = (h->u.def.value | |
3620 | + h->u.def.section->output_section->vma | |
3621 | + h->u.def.section->output_offset); | |
3622 | } | |
3623 | else | |
3624 | { | |
38f14ab8 | 3625 | _bfd_error_handler (_("error: can't find symbol: %s"), "_SDA_BASE_"); |
35c08157 KLC |
3626 | return bfd_reloc_dangerous; |
3627 | } | |
3628 | } | |
3629 | ||
fbaf61ad NC |
3630 | *psb = h->u.def.value |
3631 | + h->u.def.section->output_section->vma | |
3632 | + h->u.def.section->output_offset; | |
35c08157 KLC |
3633 | return bfd_reloc_ok; |
3634 | } | |
3635 | \f | |
3636 | ||
3637 | /* Return size of a PLT entry. */ | |
3638 | #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE | |
3639 | ||
35c08157 KLC |
3640 | /* Create an entry in an nds32 ELF linker hash table. */ |
3641 | ||
3642 | static struct bfd_hash_entry * | |
3643 | nds32_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
3644 | struct bfd_hash_table *table, | |
3645 | const char *string) | |
3646 | { | |
3647 | struct elf_nds32_link_hash_entry *ret; | |
3648 | ||
3649 | ret = (struct elf_nds32_link_hash_entry *) entry; | |
3650 | ||
3651 | /* Allocate the structure if it has not already been allocated by a | |
3652 | subclass. */ | |
3653 | if (ret == NULL) | |
3654 | ret = (struct elf_nds32_link_hash_entry *) | |
3655 | bfd_hash_allocate (table, sizeof (struct elf_nds32_link_hash_entry)); | |
3656 | ||
3657 | if (ret == NULL) | |
3658 | return (struct bfd_hash_entry *) ret; | |
3659 | ||
3660 | /* Call the allocation method of the superclass. */ | |
3661 | ret = (struct elf_nds32_link_hash_entry *) | |
3662 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string); | |
3663 | ||
3664 | if (ret != NULL) | |
3665 | { | |
3666 | struct elf_nds32_link_hash_entry *eh; | |
3667 | ||
3668 | eh = (struct elf_nds32_link_hash_entry *) ret; | |
1c8f6a4d | 3669 | eh->tls_type = GOT_UNKNOWN; |
fbaf61ad | 3670 | eh->offset_to_gp = 0; |
35c08157 KLC |
3671 | } |
3672 | ||
3673 | return (struct bfd_hash_entry *) ret; | |
3674 | } | |
3675 | ||
3676 | /* Create an nds32 ELF linker hash table. */ | |
3677 | ||
3678 | static struct bfd_link_hash_table * | |
3679 | nds32_elf_link_hash_table_create (bfd *abfd) | |
3680 | { | |
3681 | struct elf_nds32_link_hash_table *ret; | |
3682 | ||
986f0783 | 3683 | size_t amt = sizeof (struct elf_nds32_link_hash_table); |
35c08157 KLC |
3684 | |
3685 | ret = (struct elf_nds32_link_hash_table *) bfd_zmalloc (amt); | |
3686 | if (ret == NULL) | |
3687 | return NULL; | |
3688 | ||
fbaf61ad | 3689 | /* Patch tag. */ |
35c08157 KLC |
3690 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
3691 | nds32_elf_link_hash_newfunc, | |
3692 | sizeof (struct elf_nds32_link_hash_entry), | |
3693 | NDS32_ELF_DATA)) | |
3694 | { | |
3695 | free (ret); | |
3696 | return NULL; | |
3697 | } | |
3698 | ||
fbaf61ad NC |
3699 | ret->sym_ld_script = NULL; |
3700 | ||
35c08157 KLC |
3701 | return &ret->root.root; |
3702 | } | |
3703 | ||
fbaf61ad NC |
3704 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up |
3705 | shortcuts to them in our hash table. */ | |
3706 | ||
3707 | static bfd_boolean | |
3708 | create_got_section (bfd *dynobj, struct bfd_link_info *info) | |
3709 | { | |
3710 | struct elf_link_hash_table *ehtab; | |
3711 | ||
3712 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
3713 | return FALSE; | |
3714 | ||
3715 | ehtab = elf_hash_table (info); | |
3716 | ehtab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
3717 | ehtab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
3718 | if (!ehtab->sgot || !ehtab->sgotplt) | |
3719 | abort (); | |
3720 | ||
3721 | /* _bfd_elf_create_got_section will create it for us. */ | |
3722 | ehtab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
3723 | if (ehtab->srelgot == NULL | |
fd361982 | 3724 | || !bfd_set_section_flags (ehtab->srelgot, |
fbaf61ad NC |
3725 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
3726 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
3727 | | SEC_READONLY)) | |
fd361982 | 3728 | || !bfd_set_section_alignment (ehtab->srelgot, 2)) |
fbaf61ad NC |
3729 | return FALSE; |
3730 | ||
3731 | return TRUE; | |
3732 | } | |
3733 | ||
35c08157 KLC |
3734 | /* Create dynamic sections when linking against a dynamic object. */ |
3735 | ||
3736 | static bfd_boolean | |
3737 | nds32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
3738 | { | |
fbaf61ad | 3739 | struct elf_link_hash_table *ehtab; |
35c08157 KLC |
3740 | struct elf_nds32_link_hash_table *htab; |
3741 | flagword flags, pltflags; | |
3742 | register asection *s; | |
3743 | const struct elf_backend_data *bed; | |
3744 | int ptralign = 2; /* 32-bit */ | |
fbaf61ad NC |
3745 | const char *secname; |
3746 | char *relname; | |
3747 | flagword secflags; | |
3748 | asection *sec; | |
35c08157 KLC |
3749 | |
3750 | bed = get_elf_backend_data (abfd); | |
fbaf61ad | 3751 | ehtab = elf_hash_table (info); |
35c08157 KLC |
3752 | htab = nds32_elf_hash_table (info); |
3753 | ||
3754 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
3755 | .rel[a].bss sections. */ | |
3756 | ||
3757 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3758 | | SEC_LINKER_CREATED); | |
3759 | ||
3760 | pltflags = flags; | |
3761 | pltflags |= SEC_CODE; | |
3762 | if (bed->plt_not_loaded) | |
3763 | pltflags &= ~(SEC_LOAD | SEC_HAS_CONTENTS); | |
3764 | if (bed->plt_readonly) | |
3765 | pltflags |= SEC_READONLY; | |
3766 | ||
3767 | s = bfd_make_section (abfd, ".plt"); | |
fbaf61ad | 3768 | ehtab->splt = s; |
35c08157 | 3769 | if (s == NULL |
fd361982 AM |
3770 | || !bfd_set_section_flags (s, pltflags) |
3771 | || !bfd_set_section_alignment (s, bed->plt_alignment)) | |
35c08157 KLC |
3772 | return FALSE; |
3773 | ||
3774 | if (bed->want_plt_sym) | |
3775 | { | |
3776 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
3777 | .plt section. */ | |
3778 | struct bfd_link_hash_entry *bh = NULL; | |
3779 | struct elf_link_hash_entry *h; | |
3780 | ||
3781 | if (!(_bfd_generic_link_add_one_symbol | |
3782 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
3783 | (bfd_vma) 0, (const char *) NULL, FALSE, | |
3784 | get_elf_backend_data (abfd)->collect, &bh))) | |
3785 | return FALSE; | |
3786 | ||
3787 | h = (struct elf_link_hash_entry *) bh; | |
3788 | h->def_regular = 1; | |
3789 | h->type = STT_OBJECT; | |
3790 | ||
0e1862bb | 3791 | if (bfd_link_pic (info) && !bfd_elf_link_record_dynamic_symbol (info, h)) |
35c08157 KLC |
3792 | return FALSE; |
3793 | } | |
3794 | ||
3795 | s = bfd_make_section (abfd, | |
3796 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); | |
fbaf61ad | 3797 | ehtab->srelplt = s; |
35c08157 | 3798 | if (s == NULL |
fd361982 AM |
3799 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3800 | || !bfd_set_section_alignment (s, ptralign)) | |
35c08157 KLC |
3801 | return FALSE; |
3802 | ||
fbaf61ad | 3803 | if (ehtab->sgot == NULL && !create_got_section (abfd, info)) |
35c08157 KLC |
3804 | return FALSE; |
3805 | ||
fbaf61ad NC |
3806 | for (sec = abfd->sections; sec; sec = sec->next) |
3807 | { | |
fd361982 | 3808 | secflags = bfd_section_flags (sec); |
fbaf61ad NC |
3809 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) |
3810 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) | |
3811 | continue; | |
fd361982 | 3812 | secname = bfd_section_name (sec); |
fbaf61ad NC |
3813 | relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6); |
3814 | strcpy (relname, ".rela"); | |
3815 | strcat (relname, secname); | |
3816 | if (bfd_get_section_by_name (abfd, secname)) | |
3817 | continue; | |
3818 | s = bfd_make_section (abfd, relname); | |
3819 | if (s == NULL | |
fd361982 AM |
3820 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3821 | || !bfd_set_section_alignment (s, ptralign)) | |
fbaf61ad NC |
3822 | return FALSE; |
3823 | } | |
35c08157 KLC |
3824 | |
3825 | if (bed->want_dynbss) | |
3826 | { | |
3827 | /* The .dynbss section is a place to put symbols which are defined | |
3828 | by dynamic objects, are referenced by regular objects, and are | |
3829 | not functions. We must allocate space for them in the process | |
3830 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
3831 | initialize them at run time. The linker script puts the .dynbss | |
3832 | section into the .bss section of the final image. */ | |
3833 | s = bfd_make_section (abfd, ".dynbss"); | |
f1dfbfdb | 3834 | htab->root.sdynbss = s; |
35c08157 | 3835 | if (s == NULL |
fd361982 | 3836 | || !bfd_set_section_flags (s, SEC_ALLOC | SEC_LINKER_CREATED)) |
35c08157 KLC |
3837 | return FALSE; |
3838 | /* The .rel[a].bss section holds copy relocs. This section is not | |
3839 | normally needed. We need to create it here, though, so that the | |
3840 | linker will map it to an output section. We can't just create it | |
3841 | only if we need it, because we will not know whether we need it | |
3842 | until we have seen all the input files, and the first time the | |
3843 | main linker code calls BFD after examining all the input files | |
3844 | (size_dynamic_sections) the input sections have already been | |
3845 | mapped to the output sections. If the section turns out not to | |
3846 | be needed, we can discard it later. We will never need this | |
3847 | section when generating a shared object, since they do not use | |
3848 | copy relocs. */ | |
0e1862bb | 3849 | if (!bfd_link_pic (info)) |
35c08157 KLC |
3850 | { |
3851 | s = bfd_make_section (abfd, (bed->default_use_rela_p | |
3852 | ? ".rela.bss" : ".rel.bss")); | |
f1dfbfdb | 3853 | htab->root.srelbss = s; |
35c08157 | 3854 | if (s == NULL |
fd361982 AM |
3855 | || !bfd_set_section_flags (s, flags | SEC_READONLY) |
3856 | || !bfd_set_section_alignment (s, ptralign)) | |
35c08157 KLC |
3857 | return FALSE; |
3858 | } | |
3859 | } | |
3860 | ||
3861 | return TRUE; | |
3862 | } | |
3863 | ||
3864 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
3865 | static void | |
3866 | nds32_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
3867 | struct elf_link_hash_entry *dir, | |
3868 | struct elf_link_hash_entry *ind) | |
3869 | { | |
3870 | struct elf_nds32_link_hash_entry *edir, *eind; | |
3871 | ||
3872 | edir = (struct elf_nds32_link_hash_entry *) dir; | |
3873 | eind = (struct elf_nds32_link_hash_entry *) ind; | |
3874 | ||
fbaf61ad NC |
3875 | if (ind->root.type == bfd_link_hash_indirect) |
3876 | { | |
3877 | if (dir->got.refcount <= 0) | |
3878 | { | |
3879 | edir->tls_type = eind->tls_type; | |
3880 | eind->tls_type = GOT_UNKNOWN; | |
3881 | } | |
3882 | } | |
3883 | ||
35c08157 KLC |
3884 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
3885 | } | |
3886 | \f | |
35c08157 KLC |
3887 | /* Adjust a symbol defined by a dynamic object and referenced by a |
3888 | regular object. The current definition is in some section of the | |
3889 | dynamic object, but we're not including those sections. We have to | |
3890 | change the definition to something the rest of the link can | |
3891 | understand. */ | |
3892 | ||
3893 | static bfd_boolean | |
3894 | nds32_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
3895 | struct elf_link_hash_entry *h) | |
3896 | { | |
3897 | struct elf_nds32_link_hash_table *htab; | |
35c08157 KLC |
3898 | bfd *dynobj; |
3899 | asection *s; | |
3900 | unsigned int power_of_two; | |
3901 | ||
3902 | dynobj = elf_hash_table (info)->dynobj; | |
3903 | ||
3904 | /* Make sure we know what is going on here. */ | |
3905 | BFD_ASSERT (dynobj != NULL | |
3906 | && (h->needs_plt | |
60d67dc8 | 3907 | || h->is_weakalias |
35c08157 KLC |
3908 | || (h->def_dynamic && h->ref_regular && !h->def_regular))); |
3909 | ||
3910 | ||
3911 | /* If this is a function, put it in the procedure linkage table. We | |
3912 | will fill in the contents of the procedure linkage table later, | |
3913 | when we know the address of the .got section. */ | |
3914 | if (h->type == STT_FUNC || h->needs_plt) | |
3915 | { | |
0e1862bb | 3916 | if (!bfd_link_pic (info) |
35c08157 KLC |
3917 | && !h->def_dynamic |
3918 | && !h->ref_dynamic | |
3919 | && h->root.type != bfd_link_hash_undefweak | |
3920 | && h->root.type != bfd_link_hash_undefined) | |
3921 | { | |
3922 | /* This case can occur if we saw a PLT reloc in an input | |
3923 | file, but the symbol was never referred to by a dynamic | |
3924 | object. In such a case, we don't actually need to build | |
3925 | a procedure linkage table, and we can just do a PCREL | |
3926 | reloc instead. */ | |
3927 | h->plt.offset = (bfd_vma) - 1; | |
3928 | h->needs_plt = 0; | |
3929 | } | |
3930 | ||
3931 | return TRUE; | |
3932 | } | |
3933 | else | |
3934 | h->plt.offset = (bfd_vma) - 1; | |
3935 | ||
3936 | /* If this is a weak symbol, and there is a real definition, the | |
3937 | processor independent code will have arranged for us to see the | |
3938 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 3939 | if (h->is_weakalias) |
35c08157 | 3940 | { |
60d67dc8 AM |
3941 | struct elf_link_hash_entry *def = weakdef (h); |
3942 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
3943 | h->root.u.def.section = def->root.u.def.section; | |
3944 | h->root.u.def.value = def->root.u.def.value; | |
35c08157 KLC |
3945 | return TRUE; |
3946 | } | |
3947 | ||
3948 | /* This is a reference to a symbol defined by a dynamic object which | |
3949 | is not a function. */ | |
3950 | ||
3951 | /* If we are creating a shared library, we must presume that the | |
3952 | only references to the symbol are via the global offset table. | |
3953 | For such cases we need not do anything here; the relocations will | |
3954 | be handled correctly by relocate_section. */ | |
0e1862bb | 3955 | if (bfd_link_pic (info)) |
35c08157 KLC |
3956 | return TRUE; |
3957 | ||
3958 | /* If there are no references to this symbol that do not use the | |
3959 | GOT, we don't need to generate a copy reloc. */ | |
3960 | if (!h->non_got_ref) | |
3961 | return TRUE; | |
3962 | ||
3963 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
3bf083ed | 3964 | if (0 && info->nocopyreloc) |
35c08157 KLC |
3965 | { |
3966 | h->non_got_ref = 0; | |
3967 | return TRUE; | |
3968 | } | |
3969 | ||
3bf083ed AM |
3970 | /* If we don't find any dynamic relocs in read-only sections, then |
3971 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
5dbc8b37 | 3972 | if (!_bfd_elf_readonly_dynrelocs (h)) |
35c08157 KLC |
3973 | { |
3974 | h->non_got_ref = 0; | |
3975 | return TRUE; | |
3976 | } | |
3977 | ||
3978 | /* We must allocate the symbol in our .dynbss section, which will | |
3979 | become part of the .bss section of the executable. There will be | |
3980 | an entry for this symbol in the .dynsym section. The dynamic | |
3981 | object will contain position independent code, so all references | |
3982 | from the dynamic object to this symbol will go through the global | |
3983 | offset table. The dynamic linker will use the .dynsym entry to | |
3984 | determine the address it must put in the global offset table, so | |
3985 | both the dynamic object and the regular object will refer to the | |
3986 | same memory location for the variable. */ | |
3987 | ||
3988 | htab = nds32_elf_hash_table (info); | |
f1dfbfdb | 3989 | s = htab->root.sdynbss; |
35c08157 KLC |
3990 | BFD_ASSERT (s != NULL); |
3991 | ||
3992 | /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker | |
3993 | to copy the initial value out of the dynamic object and into the | |
3994 | runtime process image. We need to remember the offset into the | |
3995 | .rela.bss section we are going to use. */ | |
3996 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
3997 | { | |
3998 | asection *srel; | |
3999 | ||
f1dfbfdb | 4000 | srel = htab->root.srelbss; |
35c08157 KLC |
4001 | BFD_ASSERT (srel != NULL); |
4002 | srel->size += sizeof (Elf32_External_Rela); | |
4003 | h->needs_copy = 1; | |
4004 | } | |
4005 | ||
4006 | /* We need to figure out the alignment required for this symbol. I | |
4007 | have no idea how ELF linkers handle this. */ | |
4008 | power_of_two = bfd_log2 (h->size); | |
4009 | if (power_of_two > 3) | |
4010 | power_of_two = 3; | |
4011 | ||
4012 | /* Apply the required alignment. */ | |
4013 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); | |
fd361982 | 4014 | if (power_of_two > bfd_section_alignment (s)) |
35c08157 | 4015 | { |
fd361982 | 4016 | if (!bfd_set_section_alignment (s, power_of_two)) |
35c08157 KLC |
4017 | return FALSE; |
4018 | } | |
4019 | ||
4020 | /* Define the symbol as being at this point in the section. */ | |
4021 | h->root.u.def.section = s; | |
4022 | h->root.u.def.value = s->size; | |
4023 | ||
4024 | /* Increment the section size to make room for the symbol. */ | |
4025 | s->size += h->size; | |
4026 | ||
4027 | return TRUE; | |
4028 | } | |
4029 | ||
4030 | /* Allocate space in .plt, .got and associated reloc sections for | |
4031 | dynamic relocs. */ | |
4032 | ||
4033 | static bfd_boolean | |
4034 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) | |
4035 | { | |
4036 | struct bfd_link_info *info; | |
fbaf61ad | 4037 | struct elf_link_hash_table *ehtab; |
35c08157 | 4038 | struct elf_nds32_link_hash_table *htab; |
3bf083ed | 4039 | struct elf_dyn_relocs *p; |
35c08157 KLC |
4040 | |
4041 | if (h->root.type == bfd_link_hash_indirect) | |
4042 | return TRUE; | |
4043 | ||
fbaf61ad NC |
4044 | /* When warning symbols are created, they **replace** the "real" |
4045 | entry in the hash table, thus we never get to see the real | |
4046 | symbol in a hash traversal. So look at it now. */ | |
35c08157 | 4047 | if (h->root.type == bfd_link_hash_warning) |
35c08157 KLC |
4048 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
4049 | ||
4050 | info = (struct bfd_link_info *) inf; | |
fbaf61ad | 4051 | ehtab = elf_hash_table (info); |
35c08157 | 4052 | htab = nds32_elf_hash_table (info); |
fbaf61ad NC |
4053 | if (htab == NULL) |
4054 | return FALSE; | |
35c08157 | 4055 | |
fbaf61ad NC |
4056 | if ((htab->root.dynamic_sections_created || h->type == STT_GNU_IFUNC) |
4057 | && h->plt.refcount > 0 | |
4058 | && !(bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
4059 | { |
4060 | /* Make sure this symbol is output as a dynamic symbol. | |
4061 | Undefined weak syms won't yet be marked as dynamic. */ | |
4062 | if (h->dynindx == -1 && !h->forced_local) | |
4063 | { | |
4064 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
4065 | return FALSE; | |
4066 | } | |
4067 | ||
0e1862bb | 4068 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
35c08157 | 4069 | { |
fbaf61ad | 4070 | asection *s = ehtab->splt; |
35c08157 KLC |
4071 | |
4072 | /* If this is the first .plt entry, make room for the special | |
4073 | first entry. */ | |
4074 | if (s->size == 0) | |
4075 | s->size += PLT_ENTRY_SIZE; | |
4076 | ||
4077 | h->plt.offset = s->size; | |
4078 | ||
4079 | /* If this symbol is not defined in a regular file, and we are | |
4080 | not generating a shared library, then set the symbol to this | |
4081 | location in the .plt. This is required to make function | |
4082 | pointers compare as equal between the normal executable and | |
4083 | the shared library. */ | |
0e1862bb | 4084 | if (!bfd_link_pic (info) && !h->def_regular) |
35c08157 KLC |
4085 | { |
4086 | h->root.u.def.section = s; | |
4087 | h->root.u.def.value = h->plt.offset; | |
4088 | } | |
4089 | ||
4090 | /* Make room for this entry. */ | |
4091 | s->size += PLT_ENTRY_SIZE; | |
4092 | ||
4093 | /* We also need to make an entry in the .got.plt section, which | |
4094 | will be placed in the .got section by the linker script. */ | |
fbaf61ad | 4095 | ehtab->sgotplt->size += 4; |
35c08157 KLC |
4096 | |
4097 | /* We also need to make an entry in the .rel.plt section. */ | |
fbaf61ad NC |
4098 | ehtab->srelplt->size += sizeof (Elf32_External_Rela); |
4099 | if (htab->tls_desc_trampoline) | |
4100 | htab->next_tls_desc_index++; | |
35c08157 KLC |
4101 | } |
4102 | else | |
4103 | { | |
4104 | h->plt.offset = (bfd_vma) - 1; | |
4105 | h->needs_plt = 0; | |
4106 | } | |
4107 | } | |
4108 | else | |
4109 | { | |
4110 | h->plt.offset = (bfd_vma) - 1; | |
4111 | h->needs_plt = 0; | |
4112 | } | |
4113 | ||
4114 | if (h->got.refcount > 0) | |
4115 | { | |
fbaf61ad | 4116 | asection *sgot; |
35c08157 | 4117 | bfd_boolean dyn; |
1c8f6a4d | 4118 | int tls_type = elf32_nds32_hash_entry (h)->tls_type; |
35c08157 KLC |
4119 | |
4120 | /* Make sure this symbol is output as a dynamic symbol. | |
4121 | Undefined weak syms won't yet be marked as dynamic. */ | |
4122 | if (h->dynindx == -1 && !h->forced_local) | |
4123 | { | |
4124 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
4125 | return FALSE; | |
4126 | } | |
4127 | ||
fbaf61ad NC |
4128 | sgot = elf_hash_table (info)->sgot; |
4129 | h->got.offset = sgot->size; | |
1c8f6a4d KLC |
4130 | |
4131 | if (tls_type == GOT_UNKNOWN) | |
4132 | abort (); | |
fbaf61ad NC |
4133 | |
4134 | /* Non-TLS symbols, and TLS_IE need one GOT slot. */ | |
4135 | if (tls_type & (GOT_NORMAL | GOT_TLS_IE | GOT_TLS_IEGP)) | |
4136 | sgot->size += 4; | |
4137 | else | |
4138 | { | |
4139 | /* TLS_DESC, TLS_GD, and TLS_LD need 2 consecutive GOT slots. */ | |
4140 | if (tls_type & GOT_TLS_DESC) | |
4141 | sgot->size += 8; | |
4142 | } | |
1c8f6a4d | 4143 | |
35c08157 | 4144 | dyn = htab->root.dynamic_sections_created; |
fbaf61ad | 4145 | |
0e1862bb | 4146 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
fbaf61ad NC |
4147 | { |
4148 | if (tls_type == GOT_TLS_DESC && htab->tls_desc_trampoline) | |
4149 | { | |
4150 | /* TLS_DESC with trampoline needs a relocation slot | |
4151 | within .rela.plt. */ | |
4152 | htab->num_tls_desc++; | |
4153 | ehtab->srelplt->size += sizeof (Elf32_External_Rela); | |
4154 | htab->tls_trampoline = -1; | |
4155 | } | |
4156 | else | |
4157 | { | |
4158 | /* other relocations, including TLS_DESC without trampoline, need | |
4159 | a relocation slot within .rela.got. */ | |
4160 | ehtab->srelgot->size += sizeof (Elf32_External_Rela); | |
4161 | } | |
4162 | } | |
35c08157 KLC |
4163 | } |
4164 | else | |
fbaf61ad | 4165 | h->got.offset = (bfd_vma)-1; |
35c08157 | 4166 | |
190eb1dd | 4167 | if (h->dyn_relocs == NULL) |
35c08157 KLC |
4168 | return TRUE; |
4169 | ||
4170 | /* In the shared -Bsymbolic case, discard space allocated for | |
4171 | dynamic pc-relative relocs against symbols which turn out to be | |
4172 | defined in regular objects. For the normal shared case, discard | |
4173 | space for pc-relative relocs that have become local due to symbol | |
4174 | visibility changes. */ | |
4175 | ||
0e1862bb | 4176 | if (bfd_link_pic (info)) |
35c08157 KLC |
4177 | { |
4178 | if (h->def_regular && (h->forced_local || info->symbolic)) | |
4179 | { | |
3bf083ed | 4180 | struct elf_dyn_relocs **pp; |
35c08157 | 4181 | |
190eb1dd | 4182 | for (pp = &h->dyn_relocs; (p = *pp) != NULL;) |
35c08157 KLC |
4183 | { |
4184 | p->count -= p->pc_count; | |
4185 | p->pc_count = 0; | |
4186 | if (p->count == 0) | |
4187 | *pp = p->next; | |
4188 | else | |
4189 | pp = &p->next; | |
4190 | } | |
4191 | } | |
4192 | } | |
4193 | else | |
4194 | { | |
4195 | /* For the non-shared case, discard space for relocs against | |
4196 | symbols which turn out to need copy relocs or are not dynamic. */ | |
4197 | ||
4198 | if (!h->non_got_ref | |
4199 | && ((h->def_dynamic | |
4200 | && !h->def_regular) | |
4201 | || (htab->root.dynamic_sections_created | |
4202 | && (h->root.type == bfd_link_hash_undefweak | |
4203 | || h->root.type == bfd_link_hash_undefined)))) | |
4204 | { | |
4205 | /* Make sure this symbol is output as a dynamic symbol. | |
4206 | Undefined weak syms won't yet be marked as dynamic. */ | |
4207 | if (h->dynindx == -1 && !h->forced_local) | |
4208 | { | |
4209 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) | |
4210 | return FALSE; | |
4211 | } | |
4212 | ||
4213 | /* If that succeeded, we know we'll be keeping all the | |
4214 | relocs. */ | |
4215 | if (h->dynindx != -1) | |
4216 | goto keep; | |
4217 | } | |
4218 | ||
190eb1dd | 4219 | h->dyn_relocs = NULL; |
35c08157 | 4220 | |
dc1e8a47 | 4221 | keep:; |
35c08157 KLC |
4222 | } |
4223 | ||
4224 | /* Finally, allocate space. */ | |
190eb1dd | 4225 | for (p = h->dyn_relocs; p != NULL; p = p->next) |
35c08157 KLC |
4226 | { |
4227 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
4228 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
4229 | } | |
4230 | ||
4231 | return TRUE; | |
4232 | } | |
4233 | ||
fbaf61ad NC |
4234 | /* Add relocation REL to the end of relocation section SRELOC. */ |
4235 | ||
4236 | static void | |
4237 | elf32_nds32_add_dynreloc (bfd *output_bfd, | |
4238 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
4239 | asection *sreloc, Elf_Internal_Rela *rel) | |
4240 | { | |
4241 | bfd_byte *loc; | |
4242 | if (sreloc == NULL) | |
4243 | abort (); | |
4244 | ||
4245 | loc = sreloc->contents; | |
4246 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
4247 | if (sreloc->reloc_count * sizeof (Elf32_External_Rela) > sreloc->size) | |
4248 | abort (); | |
4249 | ||
4250 | bfd_elf32_swap_reloca_out (output_bfd, rel, loc); | |
4251 | } | |
4252 | ||
35c08157 KLC |
4253 | /* Set the sizes of the dynamic sections. */ |
4254 | ||
4255 | static bfd_boolean | |
4256 | nds32_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
4257 | struct bfd_link_info *info) | |
4258 | { | |
4259 | struct elf_nds32_link_hash_table *htab; | |
4260 | bfd *dynobj; | |
4261 | asection *s; | |
4262 | bfd_boolean relocs; | |
4263 | bfd *ibfd; | |
4264 | ||
4265 | htab = nds32_elf_hash_table (info); | |
fbaf61ad NC |
4266 | if (htab == NULL) |
4267 | return FALSE; | |
4268 | ||
4269 | dynobj = elf_hash_table (info)->dynobj; | |
35c08157 KLC |
4270 | BFD_ASSERT (dynobj != NULL); |
4271 | ||
fbaf61ad | 4272 | if (elf_hash_table (info)->dynamic_sections_created) |
35c08157 KLC |
4273 | { |
4274 | /* Set the contents of the .interp section to the interpreter. */ | |
f5233a16 | 4275 | if (bfd_link_executable (info) && !info->nointerp) |
35c08157 KLC |
4276 | { |
4277 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
4278 | BFD_ASSERT (s != NULL); | |
4279 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
4280 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
4281 | } | |
4282 | } | |
4283 | ||
4284 | /* Set up .got offsets for local syms, and space for local dynamic | |
4285 | relocs. */ | |
c72f2fb2 | 4286 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
35c08157 KLC |
4287 | { |
4288 | bfd_signed_vma *local_got; | |
4289 | bfd_signed_vma *end_local_got; | |
4290 | bfd_size_type locsymcount; | |
4291 | Elf_Internal_Shdr *symtab_hdr; | |
fbaf61ad NC |
4292 | asection *sgot; |
4293 | char *local_tls_type; | |
4294 | unsigned long symndx; | |
4295 | bfd_vma *local_tlsdesc_gotent; | |
35c08157 KLC |
4296 | |
4297 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
4298 | continue; | |
4299 | ||
4300 | for (s = ibfd->sections; s != NULL; s = s->next) | |
4301 | { | |
3bf083ed | 4302 | struct elf_dyn_relocs *p; |
35c08157 | 4303 | |
3bf083ed | 4304 | for (p = ((struct elf_dyn_relocs *) |
35c08157 KLC |
4305 | elf_section_data (s)->local_dynrel); |
4306 | p != NULL; p = p->next) | |
4307 | { | |
4308 | if (!bfd_is_abs_section (p->sec) | |
4309 | && bfd_is_abs_section (p->sec->output_section)) | |
4310 | { | |
4311 | /* Input section has been discarded, either because | |
4312 | it is a copy of a linkonce section or due to | |
4313 | linker script /DISCARD/, so we'll be discarding | |
4314 | the relocs too. */ | |
4315 | } | |
4316 | else if (p->count != 0) | |
4317 | { | |
fbaf61ad NC |
4318 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
4319 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
35c08157 KLC |
4320 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
4321 | info->flags |= DF_TEXTREL; | |
4322 | } | |
4323 | } | |
4324 | } | |
4325 | ||
4326 | local_got = elf_local_got_refcounts (ibfd); | |
4327 | if (!local_got) | |
4328 | continue; | |
4329 | ||
4330 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4331 | locsymcount = symtab_hdr->sh_info; | |
4332 | end_local_got = local_got + locsymcount; | |
fbaf61ad NC |
4333 | sgot = elf_hash_table (info)->sgot; |
4334 | local_tls_type = elf32_nds32_local_got_tls_type (ibfd); | |
4335 | local_tlsdesc_gotent = elf32_nds32_local_tlsdesc_gotent (ibfd); | |
4336 | for (symndx = 0; local_got < end_local_got; | |
4337 | ++local_got, ++local_tls_type, ++local_tlsdesc_gotent, ++symndx) | |
35c08157 KLC |
4338 | { |
4339 | if (*local_got > 0) | |
4340 | { | |
fbaf61ad NC |
4341 | int num_of_got_entry_needed = 0; |
4342 | *local_got = sgot->size; | |
4343 | *local_tlsdesc_gotent = sgot->size; | |
4344 | ||
4345 | /* TLS_NORMAL, and TLS_IE need one slot in .got. */ | |
4346 | if (*local_tls_type & (GOT_NORMAL | GOT_TLS_IE | GOT_TLS_IEGP)) | |
4347 | num_of_got_entry_needed = 1; | |
4348 | /* TLS_GD, TLS_LD, and TLS_DESC need an 8-byte structure in the GOT. */ | |
4349 | else if (*local_tls_type & GOT_TLS_DESC) | |
4350 | num_of_got_entry_needed = 2; | |
4351 | ||
4352 | sgot->size += (num_of_got_entry_needed << 2); | |
4353 | ||
4354 | /* non-relax-able TLS_DESCs need a slot in .rela.plt. | |
4355 | others need a slot in .rela.got. */ | |
4356 | if (*local_tls_type == GOT_TLS_DESC) | |
4357 | { | |
4358 | if (bfd_link_pic (info)) | |
4359 | { | |
4360 | if (htab->tls_desc_trampoline) | |
4361 | { | |
4362 | htab->num_tls_desc++; | |
4363 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); | |
4364 | htab->tls_trampoline = -1; | |
4365 | } | |
4366 | else | |
4367 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
4368 | } | |
4369 | else | |
4370 | { | |
4371 | /* TLS_DESC -> TLS_LE */ | |
4372 | } | |
4373 | } | |
4374 | else | |
4375 | { | |
4376 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
4377 | } | |
35c08157 KLC |
4378 | } |
4379 | else | |
fbaf61ad NC |
4380 | { |
4381 | *local_got = (bfd_vma) -1; | |
4382 | *local_tlsdesc_gotent = (bfd_vma) -1; | |
4383 | } | |
35c08157 KLC |
4384 | } |
4385 | } | |
4386 | ||
4387 | /* Allocate global sym .plt and .got entries, and space for global | |
4388 | sym dynamic relocs. */ | |
4389 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (void *) info); | |
4390 | ||
fbaf61ad NC |
4391 | /* For every jump slot reserved in the sgotplt, reloc_count is |
4392 | incremented. However, when we reserve space for TLS descriptors, | |
4393 | it's not incremented, so in order to compute the space reserved | |
4394 | for them, it suffices to multiply the reloc count by the jump | |
4395 | slot size. */ | |
4396 | if (htab->tls_desc_trampoline && htab->root.srelplt) | |
4397 | htab->sgotplt_jump_table_size = elf32_nds32_compute_jump_table_size (htab); | |
4398 | ||
4399 | if (htab->tls_trampoline) | |
4400 | { | |
4401 | htab->tls_trampoline = htab->root.splt->size; | |
4402 | ||
4403 | /* If we're not using lazy TLS relocations, don't generate the | |
4404 | PLT and GOT entries they require. */ | |
9bcc30e4 L |
4405 | if ((info->flags & DF_BIND_NOW)) |
4406 | htab->root.tlsdesc_plt = 0; | |
4407 | else | |
fbaf61ad | 4408 | { |
9bcc30e4 | 4409 | htab->root.tlsdesc_got = htab->root.sgot->size; |
fbaf61ad NC |
4410 | htab->root.sgot->size += 4; |
4411 | ||
9bcc30e4 | 4412 | htab->root.tlsdesc_plt = htab->root.splt->size; |
fbaf61ad NC |
4413 | htab->root.splt->size += 4 * ARRAY_SIZE (dl_tlsdesc_lazy_trampoline); |
4414 | } | |
4415 | } | |
4416 | ||
35c08157 KLC |
4417 | /* We now have determined the sizes of the various dynamic sections. |
4418 | Allocate memory for them. */ | |
fbaf61ad NC |
4419 | /* The check_relocs and adjust_dynamic_symbol entry points have |
4420 | determined the sizes of the various dynamic sections. Allocate | |
4421 | memory for them. */ | |
35c08157 KLC |
4422 | relocs = FALSE; |
4423 | for (s = dynobj->sections; s != NULL; s = s->next) | |
4424 | { | |
4425 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
4426 | continue; | |
4427 | ||
ce558b89 | 4428 | if (s == htab->root.splt) |
35c08157 KLC |
4429 | { |
4430 | /* Strip this section if we don't need it; see the | |
4431 | comment below. */ | |
3084d7a2 | 4432 | ; |
35c08157 | 4433 | } |
fbaf61ad | 4434 | else if (s == elf_hash_table (info)->sgot) |
35c08157 KLC |
4435 | { |
4436 | got_size += s->size; | |
4437 | } | |
fbaf61ad | 4438 | else if (s == elf_hash_table (info)->sgotplt) |
35c08157 KLC |
4439 | { |
4440 | got_size += s->size; | |
4441 | } | |
fd361982 | 4442 | else if (strncmp (bfd_section_name (s), ".rela", 5) == 0) |
35c08157 | 4443 | { |
fbaf61ad | 4444 | if (s->size != 0 && s != elf_hash_table (info)->srelplt) |
35c08157 KLC |
4445 | relocs = TRUE; |
4446 | ||
4447 | /* We use the reloc_count field as a counter if we need | |
4448 | to copy relocs into the output file. */ | |
4449 | s->reloc_count = 0; | |
4450 | } | |
4451 | else | |
4452 | { | |
4453 | /* It's not one of our sections, so don't allocate space. */ | |
4454 | continue; | |
4455 | } | |
4456 | ||
4457 | if (s->size == 0) | |
4458 | { | |
4459 | /* If we don't need this section, strip it from the | |
4460 | output file. This is mostly to handle .rela.bss and | |
4461 | .rela.plt. We must create both sections in | |
4462 | create_dynamic_sections, because they must be created | |
4463 | before the linker maps input sections to output | |
4464 | sections. The linker does that before | |
4465 | adjust_dynamic_symbol is called, and it is that | |
4466 | function which decides whether anything needs to go | |
4467 | into these sections. */ | |
4468 | s->flags |= SEC_EXCLUDE; | |
4469 | continue; | |
4470 | } | |
4471 | ||
4472 | /* Allocate memory for the section contents. We use bfd_zalloc | |
4473 | here in case unused entries are not reclaimed before the | |
4474 | section's contents are written out. This should not happen, | |
4475 | but this way if it does, we get a R_NDS32_NONE reloc instead | |
4476 | of garbage. */ | |
4477 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
4478 | if (s->contents == NULL) | |
4479 | return FALSE; | |
4480 | } | |
4481 | ||
3084d7a2 | 4482 | return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs); |
35c08157 KLC |
4483 | } |
4484 | ||
4485 | static bfd_reloc_status_type | |
4486 | nds32_relocate_contents (reloc_howto_type *howto, bfd *input_bfd, | |
4487 | bfd_vma relocation, bfd_byte *location) | |
4488 | { | |
4489 | int size; | |
4490 | bfd_vma x = 0; | |
4491 | bfd_reloc_status_type flag; | |
4492 | unsigned int rightshift = howto->rightshift; | |
4493 | unsigned int bitpos = howto->bitpos; | |
4494 | ||
fde0214a | 4495 | if (howto->negate) |
35c08157 KLC |
4496 | relocation = -relocation; |
4497 | ||
4498 | /* Get the value we are going to relocate. */ | |
4499 | size = bfd_get_reloc_size (howto); | |
4500 | switch (size) | |
4501 | { | |
4502 | default: | |
35c08157 KLC |
4503 | abort (); |
4504 | break; | |
6346d5ca AM |
4505 | case 0: |
4506 | return bfd_reloc_ok; | |
35c08157 KLC |
4507 | case 2: |
4508 | x = bfd_getb16 (location); | |
4509 | break; | |
4510 | case 4: | |
4511 | x = bfd_getb32 (location); | |
4512 | break; | |
4513 | } | |
4514 | ||
4515 | /* Check for overflow. FIXME: We may drop bits during the addition | |
4516 | which we don't check for. We must either check at every single | |
4517 | operation, which would be tedious, or we must do the computations | |
4518 | in a type larger than bfd_vma, which would be inefficient. */ | |
4519 | flag = bfd_reloc_ok; | |
4520 | if (howto->complain_on_overflow != complain_overflow_dont) | |
4521 | { | |
4522 | bfd_vma addrmask, fieldmask, signmask, ss; | |
4523 | bfd_vma a, b, sum; | |
4524 | ||
4525 | /* Get the values to be added together. For signed and unsigned | |
4526 | relocations, we assume that all values should be truncated to | |
4527 | the size of an address. For bitfields, all the bits matter. | |
4528 | See also bfd_check_overflow. */ | |
4529 | fieldmask = N_ONES (howto->bitsize); | |
4530 | signmask = ~fieldmask; | |
4531 | addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask; | |
4532 | a = (relocation & addrmask) >> rightshift; | |
4533 | b = (x & howto->src_mask & addrmask) >> bitpos; | |
4534 | ||
4535 | switch (howto->complain_on_overflow) | |
4536 | { | |
4537 | case complain_overflow_signed: | |
4538 | /* If any sign bits are set, all sign bits must be set. | |
4539 | That is, A must be a valid negative address after | |
4540 | shifting. */ | |
4541 | signmask = ~(fieldmask >> 1); | |
4542 | /* Fall through. */ | |
4543 | ||
4544 | case complain_overflow_bitfield: | |
4545 | /* Much like the signed check, but for a field one bit | |
4546 | wider. We allow a bitfield to represent numbers in the | |
4547 | range -2**n to 2**n-1, where n is the number of bits in the | |
4548 | field. Note that when bfd_vma is 32 bits, a 32-bit reloc | |
4549 | can't overflow, which is exactly what we want. */ | |
4550 | ss = a & signmask; | |
4551 | if (ss != 0 && ss != ((addrmask >> rightshift) & signmask)) | |
4552 | flag = bfd_reloc_overflow; | |
4553 | ||
4554 | /* We only need this next bit of code if the sign bit of B | |
4555 | is below the sign bit of A. This would only happen if | |
4556 | SRC_MASK had fewer bits than BITSIZE. Note that if | |
4557 | SRC_MASK has more bits than BITSIZE, we can get into | |
4558 | trouble; we would need to verify that B is in range, as | |
4559 | we do for A above. */ | |
4560 | ss = ((~howto->src_mask) >> 1) & howto->src_mask; | |
4561 | ss >>= bitpos; | |
4562 | ||
4563 | /* Set all the bits above the sign bit. */ | |
4564 | b = (b ^ ss) - ss; | |
4565 | ||
4566 | /* Now we can do the addition. */ | |
4567 | sum = a + b; | |
4568 | ||
4569 | /* See if the result has the correct sign. Bits above the | |
4570 | sign bit are junk now; ignore them. If the sum is | |
4571 | positive, make sure we did not have all negative inputs; | |
4572 | if the sum is negative, make sure we did not have all | |
4573 | positive inputs. The test below looks only at the sign | |
4574 | bits, and it really just | |
4575 | SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM) | |
4576 | ||
4577 | We mask with addrmask here to explicitly allow an address | |
4578 | wrap-around. The Linux kernel relies on it, and it is | |
4579 | the only way to write assembler code which can run when | |
4580 | loaded at a location 0x80000000 away from the location at | |
4581 | which it is linked. */ | |
4582 | if (((~(a ^ b)) & (a ^ sum)) & signmask & addrmask) | |
4583 | flag = bfd_reloc_overflow; | |
4584 | ||
4585 | break; | |
4586 | ||
4587 | case complain_overflow_unsigned: | |
4588 | /* Checking for an unsigned overflow is relatively easy: | |
4589 | trim the addresses and add, and trim the result as well. | |
4590 | Overflow is normally indicated when the result does not | |
4591 | fit in the field. However, we also need to consider the | |
4592 | case when, e.g., fieldmask is 0x7fffffff or smaller, an | |
4593 | input is 0x80000000, and bfd_vma is only 32 bits; then we | |
4594 | will get sum == 0, but there is an overflow, since the | |
4595 | inputs did not fit in the field. Instead of doing a | |
4596 | separate test, we can check for this by or-ing in the | |
4597 | operands when testing for the sum overflowing its final | |
4598 | field. */ | |
4599 | sum = (a + b) & addrmask; | |
4600 | if ((a | b | sum) & signmask) | |
4601 | flag = bfd_reloc_overflow; | |
4602 | break; | |
4603 | ||
4604 | default: | |
4605 | abort (); | |
4606 | } | |
4607 | } | |
4608 | ||
4609 | /* Put RELOCATION in the right bits. */ | |
4610 | relocation >>= (bfd_vma) rightshift; | |
4611 | relocation <<= (bfd_vma) bitpos; | |
4612 | ||
4613 | /* Add RELOCATION to the right bits of X. */ | |
4614 | /* FIXME : 090616 | |
4615 | Because the relaxation may generate duplicate relocation at one address, | |
4616 | an addition to immediate in the instruction may cause the relocation added | |
4617 | several times. | |
4618 | This bug should be fixed in assembler, but a check is also needed here. */ | |
4619 | if (howto->partial_inplace) | |
4620 | x = ((x & ~howto->dst_mask) | |
4621 | | (((x & howto->src_mask) + relocation) & howto->dst_mask)); | |
4622 | else | |
4623 | x = ((x & ~howto->dst_mask) | ((relocation) & howto->dst_mask)); | |
4624 | ||
4625 | ||
4626 | /* Put the relocated value back in the object file. */ | |
4627 | switch (size) | |
4628 | { | |
4629 | default: | |
4630 | case 0: | |
4631 | case 1: | |
4632 | case 8: | |
4633 | abort (); | |
4634 | break; | |
4635 | case 2: | |
4636 | bfd_putb16 (x, location); | |
4637 | break; | |
4638 | case 4: | |
4639 | bfd_putb32 (x, location); | |
4640 | break; | |
4641 | } | |
4642 | ||
4643 | return flag; | |
4644 | } | |
4645 | ||
4646 | static bfd_reloc_status_type | |
4647 | nds32_elf_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd, | |
4648 | asection *input_section, bfd_byte *contents, | |
4649 | bfd_vma address, bfd_vma value, bfd_vma addend) | |
4650 | { | |
4651 | bfd_vma relocation; | |
4652 | ||
4653 | /* Sanity check the address. */ | |
4654 | if (address > bfd_get_section_limit (input_bfd, input_section)) | |
4655 | return bfd_reloc_outofrange; | |
4656 | ||
4657 | /* This function assumes that we are dealing with a basic relocation | |
4658 | against a symbol. We want to compute the value of the symbol to | |
4659 | relocate to. This is just VALUE, the value of the symbol, plus | |
4660 | ADDEND, any addend associated with the reloc. */ | |
4661 | relocation = value + addend; | |
4662 | ||
4663 | /* If the relocation is PC relative, we want to set RELOCATION to | |
4664 | the distance between the symbol (currently in RELOCATION) and the | |
c2bf1eec | 4665 | location we are relocating. If pcrel_offset is FALSE we do not |
35c08157 KLC |
4666 | need to subtract out the offset of the location within the |
4667 | section (which is just ADDRESS). */ | |
4668 | if (howto->pc_relative) | |
4669 | { | |
4670 | relocation -= (input_section->output_section->vma | |
4671 | + input_section->output_offset); | |
4672 | if (howto->pcrel_offset) | |
4673 | relocation -= address; | |
4674 | } | |
4675 | ||
4676 | return nds32_relocate_contents (howto, input_bfd, relocation, | |
4677 | contents + address); | |
4678 | } | |
4679 | ||
4680 | static bfd_boolean | |
4681 | nds32_elf_output_symbol_hook (struct bfd_link_info *info, | |
4682 | const char *name, | |
4683 | Elf_Internal_Sym *elfsym ATTRIBUTE_UNUSED, | |
4684 | asection *input_sec, | |
4685 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
4686 | { | |
4687 | const char *source; | |
4688 | FILE *sym_ld_script = NULL; | |
4689 | struct elf_nds32_link_hash_table *table; | |
4690 | ||
4691 | table = nds32_elf_hash_table (info); | |
4692 | sym_ld_script = table->sym_ld_script; | |
4693 | if (!sym_ld_script) | |
4694 | return TRUE; | |
4695 | ||
4696 | if (!h || !name || *name == '\0') | |
4697 | return TRUE; | |
4698 | ||
4699 | if (input_sec->flags & SEC_EXCLUDE) | |
4700 | return TRUE; | |
4701 | ||
4702 | if (!check_start_export_sym) | |
4703 | { | |
4704 | fprintf (sym_ld_script, "SECTIONS\n{\n"); | |
4705 | check_start_export_sym = 1; | |
4706 | } | |
4707 | ||
4708 | if (h->root.type == bfd_link_hash_defined | |
4709 | || h->root.type == bfd_link_hash_defweak) | |
4710 | { | |
4711 | if (!h->root.u.def.section->output_section) | |
4712 | return TRUE; | |
4713 | ||
4714 | if (bfd_is_const_section (input_sec)) | |
4715 | source = input_sec->name; | |
4716 | else | |
765cf5f6 | 4717 | source = bfd_get_filename (input_sec->owner); |
35c08157 KLC |
4718 | |
4719 | fprintf (sym_ld_script, "\t%s = 0x%08lx;\t /* %s */\n", | |
4720 | h->root.root.string, | |
4721 | (long) (h->root.u.def.value | |
4722 | + h->root.u.def.section->output_section->vma | |
4723 | + h->root.u.def.section->output_offset), source); | |
4724 | } | |
4725 | ||
4726 | return TRUE; | |
4727 | } | |
4728 | ||
4729 | /* Relocate an NDS32/D ELF section. | |
4730 | There is some attempt to make this function usable for many architectures, | |
4731 | both for RELA and REL type relocs, if only to serve as a learning tool. | |
4732 | ||
4733 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
4734 | to handle the relocations for a section. | |
4735 | ||
4736 | The relocs are always passed as Rela structures; if the section | |
4737 | actually uses Rel structures, the r_addend field will always be | |
4738 | zero. | |
4739 | ||
4740 | This function is responsible for adjust the section contents as | |
4741 | necessary, and (if using Rela relocs and generating a | |
4742 | relocatable output file) adjusting the reloc addend as | |
4743 | necessary. | |
4744 | ||
4745 | This function does not have to worry about setting the reloc | |
4746 | address or the reloc symbol index. | |
4747 | ||
4748 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
4749 | ||
4750 | LOCAL_SECTIONS is an array giving the section in the input file | |
4751 | corresponding to the st_shndx field of each local symbol. | |
4752 | ||
4753 | The global hash table entry for the global symbols can be found | |
4754 | via elf_sym_hashes (input_bfd). | |
4755 | ||
4756 | When generating relocatable output, this function must handle | |
4757 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
4758 | going to be the section symbol corresponding to the output | |
4759 | section, which means that the addend must be adjusted | |
4760 | accordingly. */ | |
4761 | ||
fbaf61ad NC |
4762 | /* Return the base VMA address which should be subtracted from real addresses |
4763 | when resolving @dtpoff relocation. | |
4764 | This is PT_TLS segment p_vaddr. */ | |
4765 | ||
4766 | /* Return the relocation value for @tpoff relocation | |
4767 | if STT_TLS virtual address is ADDRESS. */ | |
4768 | ||
4769 | /* Return the relocation value for @gottpoff relocation | |
4770 | if STT_TLS virtual address is ADDRESS. */ | |
4771 | ||
1c8f6a4d | 4772 | static bfd_vma |
fbaf61ad | 4773 | gottpoff (struct bfd_link_info *info, bfd_vma address) |
1c8f6a4d | 4774 | { |
fbaf61ad NC |
4775 | bfd_vma tp_base; |
4776 | bfd_vma tp_offset; | |
4777 | ||
1c8f6a4d KLC |
4778 | /* If tls_sec is NULL, we should have signalled an error already. */ |
4779 | if (elf_hash_table (info)->tls_sec == NULL) | |
4780 | return 0; | |
fbaf61ad NC |
4781 | |
4782 | tp_base = elf_hash_table (info)->tls_sec->vma; | |
4783 | tp_offset = address - tp_base; | |
4784 | ||
4785 | return tp_offset; | |
1c8f6a4d KLC |
4786 | } |
4787 | ||
35c08157 | 4788 | static bfd_boolean |
fbaf61ad NC |
4789 | patch_tls_desc_to_ie (bfd_byte *contents, Elf_Internal_Rela *rel, bfd *ibfd) |
4790 | { | |
4791 | /* TLS_GD/TLS_LD model #1 | |
4792 | 46 00 00 00 sethi $r0,#0x0 | |
4793 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4794 | 40 00 74 00 add $r0,$r0,$gp | |
4795 | 04 10 00 00 lwi $r1,[$r0+#0x0] | |
4796 | 4b e0 04 01 jral $lp,$r1 */ | |
4797 | ||
4798 | /* TLS_GD/TLS_LD model #2 | |
4799 | 46 00 00 00 sethi $r0,#0x0 | |
4800 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4801 | 38 10 74 02 lw $r1,[$r0+($gp<<#0x0)] | |
4802 | 40 00 74 00 add $r0,$r0,$gp | |
4803 | 4b e0 04 01 jral $lp,$r1 */ | |
4804 | ||
4805 | /* TLS_IE model (non-PIC) | |
4806 | 46 00 00 00 sethi $r0,#0x0 | |
4807 | 04 00 00 00 lwi $r0,[$r0+#0x0] | |
4808 | 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */ | |
4809 | ||
4810 | /* TLS_IE model (PIC) | |
4811 | 46 00 00 00 sethi $r0,#0x0 | |
4812 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4813 | 38 00 74 02 lw $r0,[$r0+($gp<<#0x0)] | |
4814 | 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */ | |
4815 | ||
4816 | /* TLS_GD_TO_IE model | |
4817 | 46 00 00 00 sethi $r0,#0x0 | |
4818 | 58 00 00 00 ori $r0,$r0,#0x0 | |
4819 | 40 00 74 00 add $r0,$rM,$gp | |
4820 | 04 00 00 01 lwi $r0,[$r0+#0x4] | |
4821 | 40 00 64 00 add $r0,$r0,$r25 */ | |
4822 | ||
4823 | bfd_boolean rz = FALSE; | |
4824 | ||
4825 | typedef struct | |
4826 | { | |
4827 | uint32_t opcode; | |
4828 | uint32_t mask; | |
4829 | } pat_t; | |
4830 | ||
4831 | uint32_t patch[3] = | |
4832 | { | |
4833 | 0x40007400, /* add $r0,$rM,$gp */ | |
4834 | 0x04000001, /* lwi $r0,[$r0+#0x4] */ | |
4835 | 0x40006400, /* add $r0,$r0,$r25 */ | |
4836 | }; | |
4837 | ||
4838 | pat_t mode0[3] = | |
4839 | { | |
4840 | { 0x40000000, 0xfe0003ff }, | |
4841 | { 0x04000000, 0xfe000000 }, | |
4842 | { 0x4be00001, 0xffff83ff }, | |
4843 | }; | |
4844 | ||
4845 | pat_t mode1[3] = | |
4846 | { | |
4847 | { 0x38007402, 0xfe007fff }, | |
4848 | { 0x40007400, 0xfe007fff }, | |
4849 | { 0x4be00001, 0xffff83ff }, | |
4850 | }; | |
4851 | ||
4852 | unsigned char *p = contents + rel->r_offset; | |
4853 | ||
4854 | uint32_t insn; | |
4855 | uint32_t regidx = 0; | |
4856 | insn = bfd_getb32 (p); | |
4857 | if (INSN_SETHI == (0xfe0fffffu & insn)) | |
4858 | { | |
4859 | regidx = 0x1f & (insn >> 20); | |
4860 | p += 4; | |
4861 | } | |
4862 | ||
4863 | insn = bfd_getb32 (p); | |
4864 | if (INSN_ORI == (0xfe007fffu & insn)) | |
4865 | { | |
4866 | regidx = 0x1f & (insn >> 20); | |
4867 | p += 4; | |
4868 | } | |
4869 | ||
4870 | if (patch[2] == bfd_getb32 (p + 8)) /* Character instruction. */ | |
4871 | { | |
4872 | /* already patched? */ | |
4873 | if ((patch[0] == (0xfff07fffu & bfd_getb32 (p + 0))) && | |
4874 | (patch[1] == bfd_getb32 (p + 4))) | |
4875 | rz = TRUE; | |
4876 | } | |
4877 | else if (mode0[0].opcode == (mode0[0].mask & bfd_getb32 (p + 0))) | |
4878 | { | |
4879 | if ((mode0[1].opcode == (mode0[1].mask & bfd_getb32 (p + 4))) && | |
4880 | (mode0[2].opcode == (mode0[2].mask & bfd_getb32 (p + 8)))) | |
4881 | { | |
4882 | bfd_putb32 (patch[0] | (regidx << 15), p + 0); | |
4883 | bfd_putb32 (patch[1], p + 4); | |
4884 | bfd_putb32 (patch[2], p + 8); | |
4885 | rz = TRUE; | |
4886 | } | |
4887 | } | |
4888 | else if (mode1[0].opcode == (mode1[0].mask & bfd_getb32 (p + 0))) | |
4889 | { | |
4890 | if ((mode1[1].opcode == (mode1[1].mask & bfd_getb32 (p + 4))) && | |
4891 | (mode1[2].opcode == (mode1[2].mask & bfd_getb32 (p + 8)))) | |
4892 | { | |
4893 | bfd_putb32 (patch[0] | (regidx << 15), p + 0); | |
4894 | bfd_putb32 (patch[1], p + 4); | |
4895 | bfd_putb32 (patch[2], p + 8); | |
4896 | rz = TRUE; | |
4897 | } | |
4898 | } | |
4899 | ||
4900 | if (!rz) | |
4901 | { | |
765cf5f6 | 4902 | printf ("%s: %s @ 0x%08x\n", __func__, bfd_get_filename (ibfd), |
fbaf61ad NC |
4903 | (int) rel->r_offset); |
4904 | BFD_ASSERT(0); /* Unsupported pattern. */ | |
4905 | } | |
4906 | ||
4907 | return rz; | |
4908 | } | |
4909 | ||
4910 | static enum elf_nds32_tls_type | |
4911 | get_tls_type (enum elf_nds32_reloc_type r_type, struct elf_link_hash_entry *h); | |
4912 | ||
4913 | static unsigned int | |
4914 | ones32 (register unsigned int x) | |
4915 | { | |
4916 | /* 32-bit recursive reduction using SWAR... | |
4917 | but first step is mapping 2-bit values | |
4918 | into sum of 2 1-bit values in sneaky way. */ | |
4919 | x -= ((x >> 1) & 0x55555555); | |
4920 | x = (((x >> 2) & 0x33333333) + (x & 0x33333333)); | |
4921 | x = (((x >> 4) + x) & 0x0f0f0f0f); | |
4922 | x += (x >> 8); | |
4923 | x += (x >> 16); | |
4924 | return (x & 0x0000003f); | |
4925 | } | |
4926 | ||
a767a1c4 | 4927 | #if !HAVE_FLS |
fbaf61ad NC |
4928 | static unsigned int |
4929 | fls (register unsigned int x) | |
4930 | { | |
4931 | return ffs (x & (-x)); | |
4932 | } | |
a767a1c4 | 4933 | #endif /* !HAVE_FLS */ |
fbaf61ad NC |
4934 | |
4935 | #define nds32_elf_local_tlsdesc_gotent(bfd) \ | |
4936 | (elf_nds32_tdata (bfd)->local_tlsdesc_gotent) | |
4937 | ||
4938 | static bfd_boolean | |
4939 | nds32_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, | |
4940 | struct bfd_link_info * info, | |
4941 | bfd * input_bfd, | |
4942 | asection * input_section, | |
4943 | bfd_byte * contents, | |
4944 | Elf_Internal_Rela * relocs, | |
4945 | Elf_Internal_Sym * local_syms, | |
4946 | asection ** local_sections) | |
4947 | { | |
4948 | Elf_Internal_Shdr *symtab_hdr; | |
4949 | struct elf_link_hash_entry **sym_hashes; | |
4950 | Elf_Internal_Rela *rel, *relend; | |
4951 | bfd_boolean ret = TRUE; /* Assume success. */ | |
4952 | int align = 0; | |
4953 | bfd_reloc_status_type r; | |
4954 | const char *errmsg = NULL; | |
4955 | bfd_vma gp; | |
4956 | struct elf_link_hash_table *ehtab; | |
4957 | struct elf_nds32_link_hash_table *htab; | |
4958 | bfd *dynobj; | |
4959 | bfd_vma *local_got_offsets; | |
4960 | asection *sgot, *splt, *sreloc; | |
4961 | bfd_vma high_address; | |
4962 | struct elf_nds32_link_hash_table *table; | |
4963 | int eliminate_gc_relocs; | |
35c08157 KLC |
4964 | bfd_vma fpbase_addr; |
4965 | ||
4966 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
4967 | sym_hashes = elf_sym_hashes (input_bfd); | |
fbaf61ad | 4968 | ehtab = elf_hash_table (info); |
35c08157 KLC |
4969 | htab = nds32_elf_hash_table (info); |
4970 | high_address = bfd_get_section_limit (input_bfd, input_section); | |
4971 | ||
4972 | dynobj = htab->root.dynobj; | |
4973 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
4974 | ||
fbaf61ad NC |
4975 | sgot = ehtab->sgot; |
4976 | splt = ehtab->splt; | |
35c08157 KLC |
4977 | sreloc = NULL; |
4978 | ||
4979 | rel = relocs; | |
4980 | relend = relocs + input_section->reloc_count; | |
4981 | ||
4982 | table = nds32_elf_hash_table (info); | |
4983 | eliminate_gc_relocs = table->eliminate_gc_relocs; | |
fbaf61ad | 4984 | |
35c08157 | 4985 | /* By this time, we can adjust the value of _SDA_BASE_. */ |
fbaf61ad | 4986 | /* Explain _SDA_BASE_ */ |
0e1862bb | 4987 | if ((!bfd_link_relocatable (info))) |
35c08157 KLC |
4988 | { |
4989 | is_SDA_BASE_set = 1; | |
4990 | r = nds32_elf_final_sda_base (output_bfd, info, &gp, TRUE); | |
4991 | if (r != bfd_reloc_ok) | |
4992 | return FALSE; | |
4993 | } | |
4994 | ||
fbaf61ad NC |
4995 | /* Do TLS model conversion once at first. */ |
4996 | nds32_elf_unify_tls_model (input_bfd, input_section, contents, info); | |
4997 | ||
35c08157 KLC |
4998 | /* Use gp as fp to prevent truncated fit. Because in relaxation time |
4999 | the fp value is set as gp, and it has be reverted for instruction | |
5000 | setting fp. */ | |
5001 | fpbase_addr = elf_gp (output_bfd); | |
5002 | ||
fbaf61ad | 5003 | /* Deal with (dynamic) relocations. */ |
35c08157 KLC |
5004 | for (rel = relocs; rel < relend; rel++) |
5005 | { | |
5006 | enum elf_nds32_reloc_type r_type; | |
5007 | reloc_howto_type *howto = NULL; | |
5008 | unsigned long r_symndx; | |
5009 | struct elf_link_hash_entry *h = NULL; | |
5010 | Elf_Internal_Sym *sym = NULL; | |
5011 | asection *sec; | |
5012 | bfd_vma relocation; | |
fbaf61ad NC |
5013 | bfd_vma relocation_sym = 0xdeadbeef; |
5014 | Elf_Internal_Rela *lorel; | |
5015 | bfd_vma off; | |
35c08157 KLC |
5016 | |
5017 | /* We can't modify r_addend here as elf_link_input_bfd has an assert to | |
5018 | ensure it's zero (we use REL relocs, not RELA). Therefore this | |
5019 | should be assigning zero to `addend', but for clarity we use | |
5020 | `r_addend'. */ | |
5021 | ||
5022 | bfd_vma addend = rel->r_addend; | |
5023 | bfd_vma offset = rel->r_offset; | |
5024 | ||
5025 | r_type = ELF32_R_TYPE (rel->r_info); | |
5026 | if (r_type >= R_NDS32_max) | |
5027 | { | |
695344c0 | 5028 | /* xgettext:c-format */ |
0aa13fee | 5029 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
4eca0228 | 5030 | input_bfd, r_type); |
35c08157 KLC |
5031 | bfd_set_error (bfd_error_bad_value); |
5032 | ret = FALSE; | |
5033 | continue; | |
5034 | } | |
5035 | ||
5036 | if (r_type == R_NDS32_GNU_VTENTRY | |
5037 | || r_type == R_NDS32_GNU_VTINHERIT | |
5038 | || r_type == R_NDS32_NONE | |
5039 | || r_type == R_NDS32_RELA_GNU_VTENTRY | |
5040 | || r_type == R_NDS32_RELA_GNU_VTINHERIT | |
5041 | || (r_type >= R_NDS32_INSN16 && r_type <= R_NDS32_25_FIXED_RELA) | |
5042 | || r_type == R_NDS32_DATA | |
fbaf61ad | 5043 | || r_type == R_NDS32_TRAN) |
35c08157 KLC |
5044 | continue; |
5045 | ||
0c4bd9d9 KLC |
5046 | /* If we enter the fp-as-gp region. Resolve the address |
5047 | of best fp-base. */ | |
35c08157 KLC |
5048 | if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_BEGIN |
5049 | && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
5050 | { | |
5051 | int dist; | |
5052 | ||
5053 | /* Distance to relocation of best fp-base is encoded in R_SYM. */ | |
5054 | dist = rel->r_addend >> 16; | |
5055 | fpbase_addr = calculate_memory_address (input_bfd, rel + dist, | |
5056 | local_syms, symtab_hdr); | |
5057 | } | |
5058 | else if (ELF32_R_TYPE (rel->r_info) == R_NDS32_RELAX_REGION_END | |
5059 | && (rel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
5060 | { | |
5061 | fpbase_addr = elf_gp (output_bfd); | |
5062 | } | |
5063 | ||
fbaf61ad NC |
5064 | /* Skip the relocations used for relaxation. */ |
5065 | /* We have to update LONGCALL and LONGJUMP | |
5066 | relocations when generating the relocatable files. */ | |
5067 | if (!bfd_link_relocatable (info) | |
5068 | && (r_type >= R_NDS32_RELAX_ENTRY | |
5069 | || (r_type >= R_NDS32_LONGCALL4 | |
5070 | && r_type <= R_NDS32_LONGJUMP7))) | |
35c08157 KLC |
5071 | continue; |
5072 | ||
5073 | howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type); | |
5074 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5075 | ||
5076 | /* This is a final link. */ | |
5077 | sym = NULL; | |
5078 | sec = NULL; | |
5079 | h = NULL; | |
5080 | ||
5081 | if (r_symndx < symtab_hdr->sh_info) | |
5082 | { | |
5083 | /* Local symbol. */ | |
5084 | sym = local_syms + r_symndx; | |
5085 | sec = local_sections[r_symndx]; | |
5086 | ||
5087 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
5088 | addend = rel->r_addend; | |
fbaf61ad NC |
5089 | |
5090 | /* keep symbol location for static TLS_IE GOT entry */ | |
5091 | relocation_sym = relocation; | |
5092 | if (bfd_link_relocatable (info)) | |
5093 | { | |
5094 | /* This is a relocatable link. We don't have to change | |
5095 | anything, unless the reloc is against a section symbol, | |
5096 | in which case we have to adjust according to where the | |
5097 | section symbol winds up in the output section. */ | |
5098 | if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
5099 | rel->r_addend += sec->output_offset + sym->st_value; | |
5100 | ||
5101 | continue; | |
5102 | } | |
35c08157 KLC |
5103 | } |
5104 | else | |
5105 | { | |
5106 | /* External symbol. */ | |
fbaf61ad NC |
5107 | if (bfd_link_relocatable (info)) |
5108 | continue; | |
35c08157 KLC |
5109 | bfd_boolean warned, ignored, unresolved_reloc; |
5110 | int symndx = r_symndx - symtab_hdr->sh_info; | |
5111 | ||
5112 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
5113 | r_symndx, symtab_hdr, sym_hashes, h, sec, | |
5114 | relocation, unresolved_reloc, warned, | |
5115 | ignored); | |
5116 | ||
fbaf61ad NC |
5117 | /* keep symbol location for static TLS_IE GOT entry */ |
5118 | relocation_sym = relocation; | |
5119 | ||
35c08157 KLC |
5120 | /* la $fp, _FP_BASE_ is per-function (region). |
5121 | Handle it specially. */ | |
5122 | switch ((int) r_type) | |
5123 | { | |
fbaf61ad NC |
5124 | case R_NDS32_HI20_RELA: |
5125 | case R_NDS32_LO12S0_RELA: | |
5126 | if (strcmp (elf_sym_hashes (input_bfd)[symndx]->root.root.string, | |
5127 | FP_BASE_NAME) == 0) | |
5128 | { | |
5129 | if (!bfd_link_pie (info)) | |
5130 | { | |
5131 | _bfd_error_handler | |
5132 | ("%pB: warning: _FP_BASE_ setting insns relaxation failed.", | |
5133 | input_bfd); | |
5134 | } | |
5135 | relocation = fpbase_addr; | |
5136 | } | |
5137 | break; | |
35c08157 KLC |
5138 | case R_NDS32_SDA19S0_RELA: |
5139 | case R_NDS32_SDA15S0_RELA: | |
5140 | case R_NDS32_20_RELA: | |
5141 | if (strcmp (elf_sym_hashes (input_bfd)[symndx]->root.root.string, | |
5142 | FP_BASE_NAME) == 0) | |
5143 | { | |
5144 | relocation = fpbase_addr; | |
5145 | break; | |
5146 | } | |
5147 | } | |
35c08157 KLC |
5148 | } |
5149 | ||
5150 | /* Sanity check the address. */ | |
5151 | if (offset > high_address) | |
5152 | { | |
5153 | r = bfd_reloc_outofrange; | |
5154 | goto check_reloc; | |
5155 | } | |
5156 | ||
fbaf61ad | 5157 | if (r_type >= R_NDS32_RELAX_ENTRY) |
35c08157 KLC |
5158 | continue; |
5159 | ||
5160 | switch ((int) r_type) | |
5161 | { | |
5162 | case R_NDS32_GOTOFF: | |
5163 | /* Relocation is relative to the start of the global offset | |
5164 | table (for ld24 rx, #uimm24), e.g. access at label+addend | |
5165 | ||
5166 | ld24 rx. #label@GOTOFF + addend | |
5167 | sub rx, r12. */ | |
5168 | case R_NDS32_GOTOFF_HI20: | |
5169 | case R_NDS32_GOTOFF_LO12: | |
5170 | case R_NDS32_GOTOFF_LO15: | |
5171 | case R_NDS32_GOTOFF_LO19: | |
5172 | BFD_ASSERT (sgot != NULL); | |
5173 | ||
5174 | relocation -= elf_gp (output_bfd); | |
5175 | break; | |
5176 | ||
5177 | case R_NDS32_9_PLTREL: | |
5178 | case R_NDS32_25_PLTREL: | |
5179 | /* Relocation is to the entry for this symbol in the | |
5180 | procedure linkage table. */ | |
5181 | ||
5182 | /* The native assembler will generate a 25_PLTREL reloc | |
5183 | for a local symbol if you assemble a call from one | |
5184 | section to another when using -K pic. */ | |
5185 | if (h == NULL) | |
5186 | break; | |
5187 | ||
5188 | if (h->forced_local) | |
5189 | break; | |
5190 | ||
5191 | /* We didn't make a PLT entry for this symbol. This | |
5192 | happens when statically linking PIC code, or when | |
5193 | using -Bsymbolic. */ | |
5194 | if (h->plt.offset == (bfd_vma) - 1) | |
5195 | break; | |
5196 | ||
5197 | relocation = (splt->output_section->vma | |
5198 | + splt->output_offset + h->plt.offset); | |
5199 | break; | |
5200 | ||
5201 | case R_NDS32_PLT_GOTREL_HI20: | |
5202 | case R_NDS32_PLT_GOTREL_LO12: | |
5203 | case R_NDS32_PLT_GOTREL_LO15: | |
5204 | case R_NDS32_PLT_GOTREL_LO19: | |
5205 | case R_NDS32_PLT_GOTREL_LO20: | |
fbaf61ad NC |
5206 | if (h == NULL |
5207 | || h->forced_local | |
5208 | || h->plt.offset == (bfd_vma) -1 | |
5209 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 | 5210 | { |
fbaf61ad NC |
5211 | /* Maybe we should find better checking to optimize |
5212 | PIE PLT relocations. */ | |
35c08157 KLC |
5213 | /* We didn't make a PLT entry for this symbol. This |
5214 | happens when statically linking PIC code, or when | |
5215 | using -Bsymbolic. */ | |
fbaf61ad NC |
5216 | if (h) |
5217 | h->plt.offset = (bfd_vma) -1; /* Cancel PLT trampoline. */ | |
35c08157 KLC |
5218 | relocation -= elf_gp (output_bfd); |
5219 | break; | |
5220 | } | |
5221 | ||
5222 | relocation = (splt->output_section->vma | |
5223 | + splt->output_offset + h->plt.offset); | |
5224 | ||
5225 | relocation -= elf_gp (output_bfd); | |
5226 | break; | |
5227 | ||
5228 | case R_NDS32_PLTREL_HI20: | |
5229 | case R_NDS32_PLTREL_LO12: | |
5230 | ||
5231 | /* Relocation is to the entry for this symbol in the | |
5232 | procedure linkage table. */ | |
5233 | ||
5234 | /* The native assembler will generate a 25_PLTREL reloc | |
5235 | for a local symbol if you assemble a call from one | |
5236 | section to another when using -K pic. */ | |
5237 | if (h == NULL) | |
5238 | break; | |
5239 | ||
5240 | if (h->forced_local) | |
5241 | break; | |
5242 | ||
5243 | if (h->plt.offset == (bfd_vma) - 1) | |
5244 | /* We didn't make a PLT entry for this symbol. This | |
5245 | happens when statically linking PIC code, or when | |
5246 | using -Bsymbolic. */ | |
5247 | break; | |
5248 | ||
5249 | if (splt == NULL) | |
5250 | break; | |
5251 | ||
5252 | relocation = (splt->output_section->vma | |
5253 | + splt->output_offset | |
5254 | + h->plt.offset + 4) | |
5255 | - (input_section->output_section->vma | |
5256 | + input_section->output_offset | |
5257 | + rel->r_offset); | |
5258 | ||
5259 | break; | |
5260 | ||
5261 | case R_NDS32_GOTPC20: | |
5262 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation | |
5263 | ld24 rx,#_GLOBAL_OFFSET_TABLE_ */ | |
5264 | relocation = elf_gp (output_bfd); | |
5265 | break; | |
5266 | ||
5267 | case R_NDS32_GOTPC_HI20: | |
5268 | case R_NDS32_GOTPC_LO12: | |
fbaf61ad NC |
5269 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation |
5270 | bl .+4 | |
5271 | seth rx,#high(_GLOBAL_OFFSET_TABLE_) | |
5272 | or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) | |
5273 | or | |
5274 | bl .+4 | |
5275 | seth rx,#shigh(_GLOBAL_OFFSET_TABLE_) | |
5276 | add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) */ | |
5277 | relocation = elf_gp (output_bfd); | |
5278 | relocation -= (input_section->output_section->vma | |
5279 | + input_section->output_offset + rel->r_offset); | |
5280 | break; | |
35c08157 KLC |
5281 | |
5282 | case R_NDS32_GOT20: | |
5283 | /* Fall through. */ | |
5284 | case R_NDS32_GOT_HI20: | |
5285 | case R_NDS32_GOT_LO12: | |
5286 | case R_NDS32_GOT_LO15: | |
5287 | case R_NDS32_GOT_LO19: | |
5288 | /* Relocation is to the entry for this symbol in the global | |
5289 | offset table. */ | |
5290 | BFD_ASSERT (sgot != NULL); | |
5291 | ||
5292 | if (h != NULL) | |
5293 | { | |
fbaf61ad | 5294 | /* External symbol */ |
35c08157 | 5295 | bfd_boolean dyn; |
35c08157 KLC |
5296 | |
5297 | off = h->got.offset; | |
5298 | BFD_ASSERT (off != (bfd_vma) - 1); | |
5299 | dyn = htab->root.dynamic_sections_created; | |
0e1862bb L |
5300 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
5301 | bfd_link_pic (info), | |
5302 | h) | |
5303 | || (bfd_link_pic (info) | |
35c08157 KLC |
5304 | && (info->symbolic |
5305 | || h->dynindx == -1 | |
5306 | || h->forced_local) && h->def_regular)) | |
5307 | { | |
5308 | /* This is actually a static link, or it is a | |
5309 | -Bsymbolic link and the symbol is defined | |
5310 | locally, or the symbol was forced to be local | |
5311 | because of a version file. We must initialize | |
5312 | this entry in the global offset table. Since the | |
5313 | offset must always be a multiple of 4, we use the | |
5314 | least significant bit to record whether we have | |
5315 | initialized it already. | |
5316 | ||
5317 | When doing a dynamic link, we create a .rela.got | |
5318 | relocation entry to initialize the value. This | |
5319 | is done in the finish_dynamic_symbol routine. */ | |
fbaf61ad | 5320 | if ((off & 1) != 0) /* clear LSB */ |
35c08157 KLC |
5321 | off &= ~1; |
5322 | else | |
5323 | { | |
5324 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5325 | h->got.offset |= 1; | |
5326 | } | |
5327 | } | |
5328 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
5329 | - elf_gp (output_bfd); | |
5330 | } | |
5331 | else | |
5332 | { | |
fbaf61ad | 5333 | /* Local symbol */ |
35c08157 KLC |
5334 | bfd_byte *loc; |
5335 | ||
5336 | BFD_ASSERT (local_got_offsets != NULL | |
5337 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
5338 | ||
5339 | off = local_got_offsets[r_symndx]; | |
5340 | ||
5341 | /* The offset must always be a multiple of 4. We use | |
5342 | the least significant bit to record whether we have | |
5343 | already processed this entry. */ | |
fbaf61ad | 5344 | if ((off & 1) != 0) /* clear LSB */ |
35c08157 KLC |
5345 | off &= ~1; |
5346 | else | |
5347 | { | |
5348 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5349 | ||
0e1862bb | 5350 | if (bfd_link_pic (info)) |
35c08157 KLC |
5351 | { |
5352 | asection *srelgot; | |
5353 | Elf_Internal_Rela outrel; | |
5354 | ||
5355 | /* We need to generate a R_NDS32_RELATIVE reloc | |
5356 | for the dynamic linker. */ | |
fbaf61ad | 5357 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
35c08157 KLC |
5358 | BFD_ASSERT (srelgot != NULL); |
5359 | ||
5360 | outrel.r_offset = (elf_gp (output_bfd) | |
5361 | + sgot->output_offset + off); | |
5362 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
5363 | outrel.r_addend = relocation; | |
5364 | loc = srelgot->contents; | |
5365 | loc += | |
5366 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
5367 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5368 | ++srelgot->reloc_count; | |
5369 | } | |
5370 | local_got_offsets[r_symndx] |= 1; | |
5371 | } | |
5372 | relocation = sgot->output_section->vma + sgot->output_offset + off | |
5373 | - elf_gp (output_bfd); | |
5374 | } | |
5375 | ||
5376 | break; | |
5377 | ||
5378 | case R_NDS32_16_RELA: | |
5379 | case R_NDS32_20_RELA: | |
5380 | case R_NDS32_5_RELA: | |
5381 | case R_NDS32_32_RELA: | |
5382 | case R_NDS32_9_PCREL_RELA: | |
5383 | case R_NDS32_WORD_9_PCREL_RELA: | |
5384 | case R_NDS32_10_UPCREL_RELA: | |
5385 | case R_NDS32_15_PCREL_RELA: | |
5386 | case R_NDS32_17_PCREL_RELA: | |
5387 | case R_NDS32_25_PCREL_RELA: | |
5388 | case R_NDS32_HI20_RELA: | |
5389 | case R_NDS32_LO12S3_RELA: | |
5390 | case R_NDS32_LO12S2_RELA: | |
5391 | case R_NDS32_LO12S2_DP_RELA: | |
5392 | case R_NDS32_LO12S2_SP_RELA: | |
5393 | case R_NDS32_LO12S1_RELA: | |
5394 | case R_NDS32_LO12S0_RELA: | |
5395 | case R_NDS32_LO12S0_ORI_RELA: | |
0e1862bb | 5396 | if (bfd_link_pic (info) && r_symndx != 0 |
35c08157 KLC |
5397 | && (input_section->flags & SEC_ALLOC) != 0 |
5398 | && (eliminate_gc_relocs == 0 | |
5399 | || (sec && (sec->flags & SEC_EXCLUDE) == 0)) | |
5400 | && ((r_type != R_NDS32_9_PCREL_RELA | |
5401 | && r_type != R_NDS32_WORD_9_PCREL_RELA | |
5402 | && r_type != R_NDS32_10_UPCREL_RELA | |
5403 | && r_type != R_NDS32_15_PCREL_RELA | |
5404 | && r_type != R_NDS32_17_PCREL_RELA | |
5405 | && r_type != R_NDS32_25_PCREL_RELA | |
5406 | && !(r_type == R_NDS32_32_RELA | |
5407 | && strcmp (input_section->name, ".eh_frame") == 0)) | |
5408 | || (h != NULL && h->dynindx != -1 | |
5409 | && (!info->symbolic || !h->def_regular)))) | |
5410 | { | |
5411 | Elf_Internal_Rela outrel; | |
5412 | bfd_boolean skip, relocate; | |
5413 | bfd_byte *loc; | |
5414 | ||
5415 | /* When generating a shared object, these relocations | |
5416 | are copied into the output file to be resolved at run | |
5417 | time. */ | |
5418 | ||
5419 | if (sreloc == NULL) | |
5420 | { | |
5421 | const char *name; | |
5422 | ||
5423 | name = bfd_elf_string_from_elf_section | |
5424 | (input_bfd, elf_elfheader (input_bfd)->e_shstrndx, | |
5425 | elf_section_data (input_section)->rela.hdr->sh_name); | |
5426 | if (name == NULL) | |
5427 | return FALSE; | |
5428 | ||
5429 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
fd361982 | 5430 | && strcmp (bfd_section_name (input_section), |
35c08157 KLC |
5431 | name + 5) == 0); |
5432 | ||
5433 | sreloc = bfd_get_section_by_name (dynobj, name); | |
5434 | BFD_ASSERT (sreloc != NULL); | |
5435 | } | |
5436 | ||
5437 | skip = FALSE; | |
5438 | relocate = FALSE; | |
5439 | ||
5440 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, | |
5441 | info, | |
5442 | input_section, | |
5443 | rel->r_offset); | |
5444 | if (outrel.r_offset == (bfd_vma) - 1) | |
5445 | skip = TRUE; | |
5446 | else if (outrel.r_offset == (bfd_vma) - 2) | |
5447 | skip = TRUE, relocate = TRUE; | |
5448 | outrel.r_offset += (input_section->output_section->vma | |
5449 | + input_section->output_offset); | |
5450 | ||
5451 | if (skip) | |
5452 | memset (&outrel, 0, sizeof outrel); | |
5453 | else if (r_type == R_NDS32_17_PCREL_RELA | |
5454 | || r_type == R_NDS32_15_PCREL_RELA | |
5455 | || r_type == R_NDS32_25_PCREL_RELA) | |
5456 | { | |
5457 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
5458 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
5459 | outrel.r_addend = rel->r_addend; | |
5460 | } | |
5461 | else | |
5462 | { | |
5463 | /* h->dynindx may be -1 if this symbol was marked to | |
5464 | become local. */ | |
5465 | if (h == NULL | |
5466 | || ((info->symbolic || h->dynindx == -1) | |
fbaf61ad NC |
5467 | && h->def_regular) |
5468 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
5469 | { |
5470 | relocate = TRUE; | |
5471 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
5472 | outrel.r_addend = relocation + rel->r_addend; | |
fbaf61ad NC |
5473 | |
5474 | if (h) | |
5475 | { | |
5476 | h->plt.offset = (bfd_vma) -1; /* cancel PLT trampoline. */ | |
5477 | ||
5478 | BFD_ASSERT (sgot != NULL); | |
5479 | /* If we did not allocate got entry for the symbol, | |
5480 | we can not fill the nonexistent got entry. */ | |
5481 | if (h->got.offset != (bfd_vma) -1 | |
5482 | && (h->got.offset & 1) == 0) | |
5483 | { | |
5484 | bfd_put_32 (output_bfd, outrel.r_addend, | |
5485 | sgot->contents + h->got.offset); | |
5486 | } | |
5487 | } | |
35c08157 KLC |
5488 | } |
5489 | else | |
5490 | { | |
fbaf61ad NC |
5491 | if (h->dynindx == -1) |
5492 | { | |
5493 | _bfd_error_handler | |
acef8081 | 5494 | (_("%pB: relocation %s against `%s' can not be used when " |
fbaf61ad NC |
5495 | "making a shared object; recompile with -fPIC"), |
5496 | input_bfd, nds32_elf_howto_table[r_type].name, h->root.root.string); | |
5497 | bfd_set_error (bfd_error_bad_value); | |
5498 | return FALSE; | |
5499 | } | |
5500 | ||
35c08157 KLC |
5501 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
5502 | outrel.r_addend = rel->r_addend; | |
5503 | } | |
5504 | } | |
5505 | ||
5506 | loc = sreloc->contents; | |
5507 | loc += sreloc->reloc_count * sizeof (Elf32_External_Rela); | |
5508 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5509 | ++sreloc->reloc_count; | |
5510 | ||
5511 | /* If this reloc is against an external symbol, we do | |
5512 | not want to fiddle with the addend. Otherwise, we | |
5513 | need to include the symbol value so that it becomes | |
5514 | an addend for the dynamic reloc. */ | |
5515 | if (!relocate) | |
5516 | continue; | |
5517 | } | |
5518 | break; | |
5519 | ||
5520 | case R_NDS32_25_ABS_RELA: | |
0e1862bb | 5521 | if (bfd_link_pic (info)) |
35c08157 | 5522 | { |
4eca0228 | 5523 | _bfd_error_handler |
38f14ab8 AM |
5524 | (_("%pB: warning: %s unsupported in shared mode"), |
5525 | input_bfd, "R_NDS32_25_ABS_RELA"); | |
35c08157 KLC |
5526 | return FALSE; |
5527 | } | |
5528 | break; | |
5529 | ||
5530 | case R_NDS32_9_PCREL: | |
5531 | r = nds32_elf_do_9_pcrel_reloc (input_bfd, howto, input_section, | |
5532 | contents, offset, | |
5533 | sec, relocation, addend); | |
5534 | goto check_reloc; | |
5535 | ||
5536 | case R_NDS32_HI20: | |
fbaf61ad NC |
5537 | /* We allow an arbitrary number of HI20 relocs before the |
5538 | LO12 reloc. This permits gcc to emit the HI and LO relocs | |
5539 | itself. */ | |
5540 | for (lorel = rel + 1; | |
5541 | (lorel < relend | |
5542 | && ELF32_R_TYPE (lorel->r_info) == R_NDS32_HI20); lorel++) | |
5543 | continue; | |
5544 | if (lorel < relend | |
5545 | && (ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S3 | |
5546 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S2 | |
5547 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S1 | |
5548 | || ELF32_R_TYPE (lorel->r_info) == R_NDS32_LO12S0)) | |
35c08157 | 5549 | { |
fbaf61ad NC |
5550 | nds32_elf_relocate_hi20 (input_bfd, r_type, rel, lorel, |
5551 | contents, relocation + addend); | |
5552 | r = bfd_reloc_ok; | |
35c08157 | 5553 | } |
fbaf61ad NC |
5554 | else |
5555 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5556 | contents, offset, relocation, | |
5557 | addend); | |
35c08157 KLC |
5558 | goto check_reloc; |
5559 | ||
5560 | case R_NDS32_GOT17S2_RELA: | |
5561 | case R_NDS32_GOT15S2_RELA: | |
fbaf61ad NC |
5562 | BFD_ASSERT (sgot != NULL); |
5563 | ||
5564 | if (h != NULL) | |
35c08157 | 5565 | { |
fbaf61ad | 5566 | bfd_boolean dyn; |
35c08157 | 5567 | |
fbaf61ad NC |
5568 | off = h->got.offset; |
5569 | BFD_ASSERT (off != (bfd_vma) - 1); | |
35c08157 | 5570 | |
fbaf61ad NC |
5571 | dyn = htab->root.dynamic_sections_created; |
5572 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL | |
5573 | (dyn, bfd_link_pic (info), h) | |
5574 | || (bfd_link_pic (info) | |
5575 | && (info->symbolic | |
5576 | || h->dynindx == -1 | |
5577 | || h->forced_local) | |
5578 | && h->def_regular)) | |
35c08157 | 5579 | { |
fbaf61ad NC |
5580 | /* This is actually a static link, or it is a |
5581 | -Bsymbolic link and the symbol is defined | |
5582 | locally, or the symbol was forced to be local | |
5583 | because of a version file. We must initialize | |
5584 | this entry in the global offset table. Since the | |
5585 | offset must always be a multiple of 4, we use the | |
5586 | least significant bit to record whether we have | |
5587 | initialized it already. | |
5588 | ||
5589 | When doing a dynamic link, we create a .rela.got | |
5590 | relocation entry to initialize the value. This | |
5591 | is done in the finish_dynamic_symbol routine. */ | |
5592 | if ((off & 1) != 0) | |
5593 | off &= ~1; | |
5594 | else | |
35c08157 | 5595 | { |
fbaf61ad NC |
5596 | bfd_put_32 (output_bfd, relocation, |
5597 | sgot->contents + off); | |
5598 | h->got.offset |= 1; | |
35c08157 KLC |
5599 | } |
5600 | } | |
fbaf61ad NC |
5601 | } |
5602 | else | |
5603 | { | |
5604 | bfd_byte *loc; | |
35c08157 | 5605 | |
fbaf61ad NC |
5606 | BFD_ASSERT (local_got_offsets != NULL |
5607 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
35c08157 | 5608 | |
fbaf61ad | 5609 | off = local_got_offsets[r_symndx]; |
35c08157 | 5610 | |
fbaf61ad NC |
5611 | /* The offset must always be a multiple of 4. We use |
5612 | the least significant bit to record whether we have | |
5613 | already processed this entry. */ | |
5614 | if ((off & 1) != 0) | |
5615 | off &= ~1; | |
5616 | else | |
5617 | { | |
5618 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
5619 | ||
5620 | if (bfd_link_pic (info)) | |
35c08157 | 5621 | { |
fbaf61ad NC |
5622 | asection *srelgot; |
5623 | Elf_Internal_Rela outrel; | |
35c08157 | 5624 | |
fbaf61ad NC |
5625 | /* We need to generate a R_NDS32_RELATIVE reloc |
5626 | for the dynamic linker. */ | |
5627 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
5628 | BFD_ASSERT (srelgot != NULL); | |
5629 | ||
5630 | outrel.r_offset = (elf_gp (output_bfd) | |
5631 | + sgot->output_offset + off); | |
5632 | outrel.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
5633 | outrel.r_addend = relocation; | |
5634 | loc = srelgot->contents; | |
5635 | loc += | |
5636 | srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
5637 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5638 | ++srelgot->reloc_count; | |
35c08157 | 5639 | } |
fbaf61ad | 5640 | local_got_offsets[r_symndx] |= 1; |
35c08157 | 5641 | } |
35c08157 | 5642 | } |
fbaf61ad NC |
5643 | relocation = sgot->output_section->vma + sgot->output_offset + off |
5644 | - elf_gp (output_bfd); | |
5645 | ||
35c08157 KLC |
5646 | if (relocation & align) |
5647 | { | |
5648 | /* Incorrect alignment. */ | |
4eca0228 | 5649 | _bfd_error_handler |
38f14ab8 | 5650 | (_("%pB: warning: unaligned access to GOT entry"), input_bfd); |
35c08157 KLC |
5651 | ret = FALSE; |
5652 | r = bfd_reloc_dangerous; | |
5653 | goto check_reloc; | |
5654 | } | |
5655 | break; | |
5656 | ||
5657 | case R_NDS32_SDA16S3_RELA: | |
5658 | case R_NDS32_SDA15S3_RELA: | |
5659 | case R_NDS32_SDA15S3: | |
5660 | align = 0x7; | |
5661 | goto handle_sda; | |
5662 | ||
5663 | case R_NDS32_SDA17S2_RELA: | |
5664 | case R_NDS32_SDA15S2_RELA: | |
5665 | case R_NDS32_SDA12S2_SP_RELA: | |
5666 | case R_NDS32_SDA12S2_DP_RELA: | |
5667 | case R_NDS32_SDA15S2: | |
5668 | case R_NDS32_SDA_FP7U2_RELA: | |
5669 | align = 0x3; | |
5670 | goto handle_sda; | |
5671 | ||
5672 | case R_NDS32_SDA18S1_RELA: | |
5673 | case R_NDS32_SDA15S1_RELA: | |
5674 | case R_NDS32_SDA15S1: | |
5675 | align = 0x1; | |
5676 | goto handle_sda; | |
5677 | ||
5678 | case R_NDS32_SDA19S0_RELA: | |
5679 | case R_NDS32_SDA15S0_RELA: | |
5680 | case R_NDS32_SDA15S0: | |
fbaf61ad | 5681 | align = 0x0; |
dc1e8a47 | 5682 | handle_sda: |
fbaf61ad | 5683 | BFD_ASSERT (sec != NULL); |
35c08157 | 5684 | |
fbaf61ad NC |
5685 | /* If the symbol is in the abs section, the out_bfd will be null. |
5686 | This happens when the relocation has a symbol@GOTOFF. */ | |
5687 | r = nds32_elf_final_sda_base (output_bfd, info, &gp, FALSE); | |
5688 | if (r != bfd_reloc_ok) | |
5689 | { | |
5690 | _bfd_error_handler | |
5691 | (_("%pB: warning: relocate SDA_BASE failed"), input_bfd); | |
5692 | ret = FALSE; | |
5693 | goto check_reloc; | |
5694 | } | |
35c08157 | 5695 | |
fbaf61ad NC |
5696 | /* At this point `relocation' contains the object's |
5697 | address. */ | |
5698 | if (r_type == R_NDS32_SDA_FP7U2_RELA) | |
5699 | { | |
5700 | relocation -= fpbase_addr; | |
5701 | } | |
5702 | else | |
5703 | relocation -= gp; | |
5704 | /* Now it contains the offset from _SDA_BASE_. */ | |
35c08157 | 5705 | |
fbaf61ad | 5706 | /* Make sure alignment is correct. */ |
35c08157 | 5707 | |
fbaf61ad NC |
5708 | if (relocation & align) |
5709 | { | |
5710 | /* Incorrect alignment. */ | |
5711 | _bfd_error_handler | |
5712 | /* xgettext:c-format */ | |
5713 | (_("%pB(%pA): warning: unaligned small data access" | |
5714 | " of type %d"), | |
5715 | input_bfd, input_section, r_type); | |
5716 | ret = FALSE; | |
5717 | goto check_reloc; | |
35c08157 | 5718 | } |
35c08157 | 5719 | break; |
fbaf61ad | 5720 | |
35c08157 KLC |
5721 | case R_NDS32_17IFC_PCREL_RELA: |
5722 | case R_NDS32_10IFCU_PCREL_RELA: | |
fbaf61ad | 5723 | /* Do nothing. */ |
35c08157 KLC |
5724 | break; |
5725 | ||
1c8f6a4d KLC |
5726 | case R_NDS32_TLS_LE_HI20: |
5727 | case R_NDS32_TLS_LE_LO12: | |
5728 | case R_NDS32_TLS_LE_20: | |
5729 | case R_NDS32_TLS_LE_15S0: | |
5730 | case R_NDS32_TLS_LE_15S1: | |
5731 | case R_NDS32_TLS_LE_15S2: | |
fbaf61ad NC |
5732 | /* We do not have garbage collection for got entries. |
5733 | Therefore, IE to LE may have one empty entry, and DESC to | |
5734 | LE may have two. */ | |
1c8f6a4d KLC |
5735 | if (elf_hash_table (info)->tls_sec != NULL) |
5736 | relocation -= (elf_hash_table (info)->tls_sec->vma + TP_OFFSET); | |
5737 | break; | |
fbaf61ad | 5738 | |
1c8f6a4d KLC |
5739 | case R_NDS32_TLS_IE_HI20: |
5740 | case R_NDS32_TLS_IE_LO12S2: | |
fbaf61ad NC |
5741 | case R_NDS32_TLS_DESC_HI20: |
5742 | case R_NDS32_TLS_DESC_LO12: | |
5743 | case R_NDS32_TLS_IE_LO12: | |
5744 | case R_NDS32_TLS_IEGP_HI20: | |
5745 | case R_NDS32_TLS_IEGP_LO12: | |
5746 | case R_NDS32_TLS_IEGP_LO12S2: | |
1c8f6a4d KLC |
5747 | { |
5748 | /* Relocation is to the entry for this symbol in the global | |
5749 | offset table. */ | |
fbaf61ad | 5750 | enum elf_nds32_tls_type tls_type, org_tls_type, eff_tls_type; |
1c8f6a4d KLC |
5751 | asection *srelgot; |
5752 | Elf_Internal_Rela outrel; | |
1c8f6a4d KLC |
5753 | bfd_byte *loc; |
5754 | int indx = 0; | |
5755 | ||
fbaf61ad NC |
5756 | eff_tls_type = org_tls_type = get_tls_type (r_type, h); |
5757 | ||
1c8f6a4d KLC |
5758 | BFD_ASSERT (sgot != NULL); |
5759 | if (h != NULL) | |
5760 | { | |
5761 | bfd_boolean dyn; | |
5762 | ||
5763 | off = h->got.offset; | |
fbaf61ad | 5764 | BFD_ASSERT (off != (bfd_vma) -1); |
1c8f6a4d KLC |
5765 | dyn = htab->root.dynamic_sections_created; |
5766 | tls_type = ((struct elf_nds32_link_hash_entry *) h)->tls_type; | |
0e1862bb L |
5767 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
5768 | && (!bfd_link_pic (info) | |
1c8f6a4d KLC |
5769 | || !SYMBOL_REFERENCES_LOCAL (info, h))) |
5770 | indx = h->dynindx; | |
5771 | } | |
5772 | else | |
5773 | { | |
1c8f6a4d KLC |
5774 | BFD_ASSERT (local_got_offsets != NULL |
5775 | && local_got_offsets[r_symndx] != (bfd_vma) - 1); | |
1c8f6a4d | 5776 | off = local_got_offsets[r_symndx]; |
1c8f6a4d KLC |
5777 | tls_type = elf32_nds32_local_got_tls_type (input_bfd)[r_symndx]; |
5778 | } | |
fbaf61ad | 5779 | |
1c8f6a4d KLC |
5780 | relocation = sgot->output_section->vma + sgot->output_offset + off; |
5781 | ||
fbaf61ad NC |
5782 | if (1 < ones32 (tls_type)) |
5783 | { | |
5784 | eff_tls_type = 1 << (fls (tls_type) - 1); | |
5785 | /* TLS model shall be handled in nds32_elf_unify_tls_model (). */ | |
5786 | ||
5787 | /* TLS model X -> LE is not implement yet! | |
5788 | workaround here! */ | |
5789 | if (eff_tls_type == GOT_TLS_LE) | |
5790 | { | |
5791 | eff_tls_type = 1 << (fls (tls_type ^ eff_tls_type) - 1); | |
5792 | } | |
5793 | } | |
1c8f6a4d KLC |
5794 | |
5795 | /* The offset must always be a multiple of 4. We use | |
5796 | the least significant bit to record whether we have | |
5797 | already processed this entry. */ | |
fbaf61ad NC |
5798 | bfd_boolean need_relocs = FALSE; |
5799 | srelgot = ehtab->srelgot; | |
5800 | if ((bfd_link_pic (info) || indx != 0) | |
5801 | && (h == NULL || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5802 | || h->root.type != bfd_link_hash_undefweak)) | |
5803 | { | |
5804 | need_relocs = TRUE; | |
5805 | BFD_ASSERT (srelgot != NULL); | |
5806 | } | |
5807 | ||
5808 | if (off & 1) | |
5809 | { | |
5810 | off &= ~1; | |
5811 | relocation &= ~1; | |
5812 | ||
5813 | if (eff_tls_type & GOT_TLS_DESC) | |
5814 | { | |
5815 | relocation -= elf_gp (output_bfd); | |
5816 | if ((R_NDS32_TLS_DESC_HI20 == r_type) && (!need_relocs)) | |
5817 | { | |
5818 | /* TLS model shall be converted. */ | |
5819 | BFD_ASSERT(0); | |
5820 | } | |
5821 | } | |
5822 | else if (eff_tls_type & GOT_TLS_IEGP) | |
5823 | { | |
5824 | relocation -= elf_gp (output_bfd); | |
5825 | } | |
5826 | } | |
1c8f6a4d KLC |
5827 | else |
5828 | { | |
fbaf61ad | 5829 | if ((eff_tls_type & GOT_TLS_LE) && (tls_type ^ eff_tls_type)) |
1c8f6a4d | 5830 | { |
fbaf61ad NC |
5831 | /* TLS model workaround shall be applied. */ |
5832 | BFD_ASSERT(0); | |
1c8f6a4d | 5833 | } |
fbaf61ad | 5834 | else if (eff_tls_type & (GOT_TLS_IE | GOT_TLS_IEGP)) |
1c8f6a4d | 5835 | { |
fbaf61ad NC |
5836 | if (eff_tls_type & GOT_TLS_IEGP) |
5837 | relocation -= elf_gp(output_bfd); | |
5838 | ||
1c8f6a4d KLC |
5839 | if (need_relocs) |
5840 | { | |
fbaf61ad NC |
5841 | if (indx == 0) |
5842 | outrel.r_addend = gottpoff (info, relocation_sym); | |
1c8f6a4d KLC |
5843 | else |
5844 | outrel.r_addend = 0; | |
5845 | outrel.r_offset = (sgot->output_section->vma | |
fbaf61ad NC |
5846 | + sgot->output_offset + off); |
5847 | outrel.r_info = ELF32_R_INFO (indx, R_NDS32_TLS_TPOFF); | |
5848 | ||
5849 | elf32_nds32_add_dynreloc (output_bfd, info, srelgot, | |
5850 | &outrel); | |
1c8f6a4d KLC |
5851 | } |
5852 | else | |
fbaf61ad NC |
5853 | { |
5854 | bfd_put_32 (output_bfd, gottpoff (info, relocation_sym), | |
5855 | sgot->contents + off); | |
5856 | } | |
1c8f6a4d | 5857 | } |
fbaf61ad NC |
5858 | else if (eff_tls_type & GOT_TLS_DESC) |
5859 | { | |
5860 | relocation -= elf_gp (output_bfd); | |
5861 | if (need_relocs) | |
5862 | { | |
5863 | if (indx == 0) | |
5864 | outrel.r_addend = gottpoff (info, relocation_sym); | |
5865 | else | |
5866 | outrel.r_addend = 0; | |
5867 | outrel.r_offset = (sgot->output_section->vma | |
5868 | + sgot->output_offset + off); | |
5869 | outrel.r_info = ELF32_R_INFO (indx, R_NDS32_TLS_DESC); | |
5870 | ||
5871 | if (htab->tls_desc_trampoline) | |
5872 | { | |
5873 | asection *srelplt; | |
5874 | srelplt = ehtab->srelplt; | |
5875 | loc = srelplt->contents; | |
5876 | loc += htab->next_tls_desc_index++ * sizeof (Elf32_External_Rela); | |
5877 | BFD_ASSERT (loc + sizeof (Elf32_External_Rela) | |
5878 | <= srelplt->contents + srelplt->size); | |
5879 | ||
5880 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5881 | } | |
5882 | else | |
5883 | { | |
5884 | loc = srelgot->contents; | |
5885 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
5886 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5887 | ++srelgot->reloc_count; | |
5888 | } | |
5889 | } | |
5890 | else | |
5891 | { | |
5892 | /* feed me! */ | |
5893 | bfd_put_32 (output_bfd, 0xdeadbeef, | |
5894 | sgot->contents + off); | |
5895 | bfd_put_32 (output_bfd, gottpoff (info, relocation_sym), | |
5896 | sgot->contents + off + 4); | |
5897 | patch_tls_desc_to_ie (contents, rel, input_bfd); | |
5898 | BFD_ASSERT(0); | |
5899 | } | |
5900 | } | |
5901 | else | |
5902 | { | |
5903 | /* TLS model workaround shall be applied. */ | |
5904 | BFD_ASSERT(0); | |
5905 | } | |
5906 | ||
5907 | if (h != NULL) | |
5908 | h->got.offset |= 1; | |
5909 | else | |
5910 | local_got_offsets[r_symndx] |= 1; | |
5911 | } | |
5912 | } | |
5913 | break; | |
5914 | /* DON'T fall through. */ | |
5915 | ||
5916 | default: | |
5917 | /* OLD_NDS32_RELOC. */ | |
5918 | ||
5919 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5920 | contents, offset, relocation, addend); | |
5921 | goto check_reloc; | |
5922 | } | |
5923 | ||
5924 | switch ((int) r_type) | |
5925 | { | |
35c08157 KLC |
5926 | case R_NDS32_20_RELA: |
5927 | case R_NDS32_5_RELA: | |
5928 | case R_NDS32_9_PCREL_RELA: | |
5929 | case R_NDS32_WORD_9_PCREL_RELA: | |
5930 | case R_NDS32_10_UPCREL_RELA: | |
5931 | case R_NDS32_15_PCREL_RELA: | |
5932 | case R_NDS32_17_PCREL_RELA: | |
5933 | case R_NDS32_25_PCREL_RELA: | |
5934 | case R_NDS32_25_ABS_RELA: | |
5935 | case R_NDS32_HI20_RELA: | |
5936 | case R_NDS32_LO12S3_RELA: | |
5937 | case R_NDS32_LO12S2_RELA: | |
5938 | case R_NDS32_LO12S2_DP_RELA: | |
5939 | case R_NDS32_LO12S2_SP_RELA: | |
5940 | case R_NDS32_LO12S1_RELA: | |
5941 | case R_NDS32_LO12S0_RELA: | |
5942 | case R_NDS32_LO12S0_ORI_RELA: | |
5943 | case R_NDS32_SDA16S3_RELA: | |
5944 | case R_NDS32_SDA17S2_RELA: | |
5945 | case R_NDS32_SDA18S1_RELA: | |
5946 | case R_NDS32_SDA19S0_RELA: | |
5947 | case R_NDS32_SDA15S3_RELA: | |
5948 | case R_NDS32_SDA15S2_RELA: | |
5949 | case R_NDS32_SDA12S2_DP_RELA: | |
5950 | case R_NDS32_SDA12S2_SP_RELA: | |
5951 | case R_NDS32_SDA15S1_RELA: | |
5952 | case R_NDS32_SDA15S0_RELA: | |
5953 | case R_NDS32_SDA_FP7U2_RELA: | |
5954 | case R_NDS32_9_PLTREL: | |
5955 | case R_NDS32_25_PLTREL: | |
5956 | case R_NDS32_GOT20: | |
5957 | case R_NDS32_GOT_HI20: | |
5958 | case R_NDS32_GOT_LO12: | |
5959 | case R_NDS32_GOT_LO15: | |
5960 | case R_NDS32_GOT_LO19: | |
5961 | case R_NDS32_GOT15S2_RELA: | |
5962 | case R_NDS32_GOT17S2_RELA: | |
5963 | case R_NDS32_GOTPC20: | |
5964 | case R_NDS32_GOTPC_HI20: | |
5965 | case R_NDS32_GOTPC_LO12: | |
5966 | case R_NDS32_GOTOFF: | |
5967 | case R_NDS32_GOTOFF_HI20: | |
5968 | case R_NDS32_GOTOFF_LO12: | |
5969 | case R_NDS32_GOTOFF_LO15: | |
5970 | case R_NDS32_GOTOFF_LO19: | |
5971 | case R_NDS32_PLTREL_HI20: | |
5972 | case R_NDS32_PLTREL_LO12: | |
5973 | case R_NDS32_PLT_GOTREL_HI20: | |
5974 | case R_NDS32_PLT_GOTREL_LO12: | |
5975 | case R_NDS32_PLT_GOTREL_LO15: | |
5976 | case R_NDS32_PLT_GOTREL_LO19: | |
5977 | case R_NDS32_PLT_GOTREL_LO20: | |
5978 | case R_NDS32_17IFC_PCREL_RELA: | |
5979 | case R_NDS32_10IFCU_PCREL_RELA: | |
1c8f6a4d KLC |
5980 | case R_NDS32_TLS_LE_HI20: |
5981 | case R_NDS32_TLS_LE_LO12: | |
5982 | case R_NDS32_TLS_IE_HI20: | |
5983 | case R_NDS32_TLS_IE_LO12S2: | |
5984 | case R_NDS32_TLS_LE_20: | |
5985 | case R_NDS32_TLS_LE_15S0: | |
5986 | case R_NDS32_TLS_LE_15S1: | |
5987 | case R_NDS32_TLS_LE_15S2: | |
fbaf61ad NC |
5988 | case R_NDS32_TLS_DESC_HI20: |
5989 | case R_NDS32_TLS_DESC_LO12: | |
5990 | case R_NDS32_TLS_IE_LO12: | |
5991 | case R_NDS32_TLS_IEGP_HI20: | |
5992 | case R_NDS32_TLS_IEGP_LO12: | |
5993 | case R_NDS32_TLS_IEGP_LO12S2: | |
35c08157 | 5994 | /* Instruction related relocs must handle endian properly. */ |
1c8f6a4d | 5995 | /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */ |
35c08157 KLC |
5996 | r = nds32_elf_final_link_relocate (howto, input_bfd, |
5997 | input_section, contents, | |
5998 | rel->r_offset, relocation, | |
5999 | rel->r_addend); | |
6000 | break; | |
6001 | ||
6002 | default: | |
6003 | /* All other relocs can use default handler. */ | |
6004 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
6005 | contents, rel->r_offset, | |
6006 | relocation, rel->r_addend); | |
6007 | break; | |
6008 | } | |
6009 | ||
dc1e8a47 | 6010 | check_reloc: |
35c08157 KLC |
6011 | |
6012 | if (r != bfd_reloc_ok) | |
6013 | { | |
6014 | /* FIXME: This should be generic enough to go in a utility. */ | |
6015 | const char *name; | |
6016 | ||
6017 | if (h != NULL) | |
6018 | name = h->root.root.string; | |
6019 | else | |
6020 | { | |
6021 | name = bfd_elf_string_from_elf_section | |
6022 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
6023 | if (name == NULL || *name == '\0') | |
fd361982 | 6024 | name = bfd_section_name (sec); |
35c08157 KLC |
6025 | } |
6026 | ||
6027 | if (errmsg != NULL) | |
6028 | goto common_error; | |
6029 | ||
6030 | switch (r) | |
6031 | { | |
6032 | case bfd_reloc_overflow: | |
1a72702b AM |
6033 | (*info->callbacks->reloc_overflow) |
6034 | (info, (h ? &h->root : NULL), name, howto->name, | |
6035 | (bfd_vma) 0, input_bfd, input_section, offset); | |
35c08157 KLC |
6036 | break; |
6037 | ||
6038 | case bfd_reloc_undefined: | |
1a72702b AM |
6039 | (*info->callbacks->undefined_symbol) |
6040 | (info, name, input_bfd, input_section, offset, TRUE); | |
35c08157 KLC |
6041 | break; |
6042 | ||
6043 | case bfd_reloc_outofrange: | |
6044 | errmsg = _("internal error: out of range error"); | |
6045 | goto common_error; | |
6046 | ||
6047 | case bfd_reloc_notsupported: | |
6048 | errmsg = _("internal error: unsupported relocation error"); | |
6049 | goto common_error; | |
6050 | ||
6051 | case bfd_reloc_dangerous: | |
6052 | errmsg = _("internal error: dangerous error"); | |
6053 | goto common_error; | |
6054 | ||
6055 | default: | |
6056 | errmsg = _("internal error: unknown error"); | |
6057 | /* Fall through. */ | |
6058 | ||
dc1e8a47 | 6059 | common_error: |
1a72702b AM |
6060 | (*info->callbacks->warning) (info, errmsg, name, input_bfd, |
6061 | input_section, offset); | |
35c08157 KLC |
6062 | break; |
6063 | } | |
6064 | } | |
6065 | } | |
6066 | ||
fbaf61ad NC |
6067 | /* Resotre header size to avoid overflow load. */ |
6068 | if (elf_nds32_tdata (input_bfd)->hdr_size != 0) | |
6069 | symtab_hdr->sh_size = elf_nds32_tdata (input_bfd)->hdr_size; | |
6070 | ||
35c08157 KLC |
6071 | return ret; |
6072 | } | |
6073 | ||
6074 | /* Finish up dynamic symbol handling. We set the contents of various | |
6075 | dynamic sections here. */ | |
6076 | ||
6077 | static bfd_boolean | |
6078 | nds32_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, | |
6079 | struct elf_link_hash_entry *h, Elf_Internal_Sym *sym) | |
6080 | { | |
fbaf61ad NC |
6081 | struct elf_link_hash_table *ehtab; |
6082 | struct elf_nds32_link_hash_entry *hent; | |
35c08157 KLC |
6083 | bfd_byte *loc; |
6084 | ||
fbaf61ad NC |
6085 | ehtab = elf_hash_table (info); |
6086 | hent = (struct elf_nds32_link_hash_entry *) h; | |
35c08157 KLC |
6087 | |
6088 | if (h->plt.offset != (bfd_vma) - 1) | |
6089 | { | |
6090 | asection *splt; | |
6091 | asection *sgot; | |
6092 | asection *srela; | |
6093 | ||
6094 | bfd_vma plt_index; | |
6095 | bfd_vma got_offset; | |
6096 | bfd_vma local_plt_offset; | |
6097 | Elf_Internal_Rela rela; | |
6098 | ||
6099 | /* This symbol has an entry in the procedure linkage table. Set | |
6100 | it up. */ | |
6101 | ||
6102 | BFD_ASSERT (h->dynindx != -1); | |
6103 | ||
fbaf61ad NC |
6104 | splt = ehtab->splt; |
6105 | sgot = ehtab->sgotplt; | |
6106 | srela = ehtab->srelplt; | |
35c08157 KLC |
6107 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
6108 | ||
6109 | /* Get the index in the procedure linkage table which | |
6110 | corresponds to this symbol. This is the index of this symbol | |
6111 | in all the symbols for which we are making plt entries. The | |
6112 | first entry in the procedure linkage table is reserved. */ | |
6113 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
6114 | ||
6115 | /* Get the offset into the .got table of the entry that | |
6116 | corresponds to this function. Each .got entry is 4 bytes. | |
6117 | The first three are reserved. */ | |
6118 | got_offset = (plt_index + 3) * 4; | |
6119 | ||
6120 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 6121 | if (!bfd_link_pic (info)) |
35c08157 KLC |
6122 | { |
6123 | unsigned long insn; | |
6124 | ||
6125 | insn = PLT_ENTRY_WORD0 + (((sgot->output_section->vma | |
6126 | + sgot->output_offset + got_offset) >> 12) | |
6127 | & 0xfffff); | |
6128 | bfd_putb32 (insn, splt->contents + h->plt.offset); | |
6129 | ||
6130 | insn = PLT_ENTRY_WORD1 + (((sgot->output_section->vma | |
6131 | + sgot->output_offset + got_offset) & 0x0fff) | |
6132 | >> 2); | |
6133 | bfd_putb32 (insn, splt->contents + h->plt.offset + 4); | |
6134 | ||
6135 | insn = PLT_ENTRY_WORD2; | |
6136 | bfd_putb32 (insn, splt->contents + h->plt.offset + 8); | |
6137 | ||
6138 | insn = PLT_ENTRY_WORD3 + (plt_index & 0x7ffff); | |
6139 | bfd_putb32 (insn, splt->contents + h->plt.offset + 12); | |
6140 | ||
6141 | insn = PLT_ENTRY_WORD4 | |
6142 | + (((unsigned int) ((-(h->plt.offset + 16)) >> 1)) & 0xffffff); | |
6143 | bfd_putb32 (insn, splt->contents + h->plt.offset + 16); | |
6144 | local_plt_offset = 12; | |
6145 | } | |
6146 | else | |
6147 | { | |
6148 | /* sda_base must be set at this time. */ | |
6149 | unsigned long insn; | |
6150 | long offset; | |
6151 | ||
35c08157 KLC |
6152 | offset = sgot->output_section->vma + sgot->output_offset + got_offset |
6153 | - elf_gp (output_bfd); | |
6154 | insn = PLT_PIC_ENTRY_WORD0 + ((offset >> 12) & 0xfffff); | |
6155 | bfd_putb32 (insn, splt->contents + h->plt.offset); | |
6156 | ||
6157 | insn = PLT_PIC_ENTRY_WORD1 + (offset & 0xfff); | |
6158 | bfd_putb32 (insn, splt->contents + h->plt.offset + 4); | |
6159 | ||
6160 | insn = PLT_PIC_ENTRY_WORD2; | |
6161 | bfd_putb32 (insn, splt->contents + h->plt.offset + 8); | |
6162 | ||
6163 | insn = PLT_PIC_ENTRY_WORD3; | |
6164 | bfd_putb32 (insn, splt->contents + h->plt.offset + 12); | |
6165 | ||
6166 | insn = PLT_PIC_ENTRY_WORD4 + (plt_index & 0x7fffff); | |
6167 | bfd_putb32 (insn, splt->contents + h->plt.offset + 16); | |
6168 | ||
6169 | insn = PLT_PIC_ENTRY_WORD5 | |
6170 | + (((unsigned int) ((-(h->plt.offset + 20)) >> 1)) & 0xffffff); | |
6171 | bfd_putb32 (insn, splt->contents + h->plt.offset + 20); | |
6172 | ||
6173 | local_plt_offset = 16; | |
6174 | } | |
6175 | ||
6176 | /* Fill in the entry in the global offset table, | |
6177 | so it will fall through to the next instruction for the first time. */ | |
6178 | bfd_put_32 (output_bfd, | |
6179 | (splt->output_section->vma + splt->output_offset | |
6180 | + h->plt.offset + local_plt_offset), | |
6181 | sgot->contents + got_offset); | |
6182 | ||
6183 | /* Fill in the entry in the .rela.plt section. */ | |
6184 | rela.r_offset = (sgot->output_section->vma | |
6185 | + sgot->output_offset + got_offset); | |
6186 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_JMP_SLOT); | |
6187 | rela.r_addend = 0; | |
6188 | loc = srela->contents; | |
6189 | loc += plt_index * sizeof (Elf32_External_Rela); | |
6190 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
6191 | ||
6192 | if (!h->def_regular) | |
6193 | { | |
6194 | /* Mark the symbol as undefined, rather than as defined in | |
6195 | the .plt section. Leave the value alone. */ | |
6196 | sym->st_shndx = SHN_UNDEF; | |
6197 | if (!h->ref_regular_nonweak) | |
6198 | sym->st_value = 0; | |
6199 | } | |
6200 | } | |
6201 | ||
fbaf61ad NC |
6202 | if (h->got.offset != (bfd_vma) - 1 |
6203 | && hent->tls_type == GOT_NORMAL) | |
35c08157 KLC |
6204 | { |
6205 | asection *sgot; | |
fbaf61ad | 6206 | asection *srelagot; |
35c08157 KLC |
6207 | Elf_Internal_Rela rela; |
6208 | ||
6209 | /* This symbol has an entry in the global offset table. | |
6210 | Set it up. */ | |
6211 | ||
fbaf61ad NC |
6212 | sgot = ehtab->sgot; |
6213 | srelagot = ehtab->srelgot; | |
6214 | BFD_ASSERT (sgot != NULL && srelagot != NULL); | |
35c08157 KLC |
6215 | |
6216 | rela.r_offset = (sgot->output_section->vma | |
6217 | + sgot->output_offset + (h->got.offset & ~1)); | |
6218 | ||
6219 | /* If this is a -Bsymbolic link, and the symbol is defined | |
6220 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
6221 | the symbol was forced to be local because of a version file. | |
6222 | The entry in the global offset table will already have been | |
6223 | initialized in the relocate_section function. */ | |
fbaf61ad NC |
6224 | if ((bfd_link_pic (info) |
6225 | && (info->symbolic || h->dynindx == -1 || h->forced_local) | |
6226 | && h->def_regular) | |
6227 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
6228 | { |
6229 | rela.r_info = ELF32_R_INFO (0, R_NDS32_RELATIVE); | |
6230 | rela.r_addend = (h->root.u.def.value | |
6231 | + h->root.u.def.section->output_section->vma | |
6232 | + h->root.u.def.section->output_offset); | |
fbaf61ad NC |
6233 | |
6234 | if ((h->got.offset & 1) == 0) | |
6235 | { | |
6236 | bfd_put_32 (output_bfd, rela.r_addend, | |
6237 | sgot->contents + h->got.offset); | |
6238 | } | |
35c08157 KLC |
6239 | } |
6240 | else | |
6241 | { | |
6242 | BFD_ASSERT ((h->got.offset & 1) == 0); | |
6243 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
6244 | sgot->contents + h->got.offset); | |
6245 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_GLOB_DAT); | |
6246 | rela.r_addend = 0; | |
6247 | } | |
6248 | ||
fbaf61ad NC |
6249 | loc = srelagot->contents; |
6250 | loc += srelagot->reloc_count * sizeof (Elf32_External_Rela); | |
35c08157 | 6251 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
fbaf61ad NC |
6252 | ++srelagot->reloc_count; |
6253 | BFD_ASSERT (loc < (srelagot->contents + srelagot->size)); | |
35c08157 KLC |
6254 | } |
6255 | ||
6256 | if (h->needs_copy) | |
6257 | { | |
6258 | asection *s; | |
6259 | Elf_Internal_Rela rela; | |
6260 | ||
6261 | /* This symbols needs a copy reloc. Set it up. */ | |
6262 | ||
6263 | BFD_ASSERT (h->dynindx != -1 | |
6264 | && (h->root.type == bfd_link_hash_defined | |
6265 | || h->root.type == bfd_link_hash_defweak)); | |
6266 | ||
6267 | s = bfd_get_section_by_name (h->root.u.def.section->owner, ".rela.bss"); | |
6268 | BFD_ASSERT (s != NULL); | |
6269 | ||
6270 | rela.r_offset = (h->root.u.def.value | |
6271 | + h->root.u.def.section->output_section->vma | |
6272 | + h->root.u.def.section->output_offset); | |
6273 | rela.r_info = ELF32_R_INFO (h->dynindx, R_NDS32_COPY); | |
6274 | rela.r_addend = 0; | |
6275 | loc = s->contents; | |
6276 | loc += s->reloc_count * sizeof (Elf32_External_Rela); | |
6277 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
6278 | ++s->reloc_count; | |
6279 | } | |
6280 | ||
6281 | /* Mark some specially defined symbols as absolute. */ | |
6282 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
6283 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
6284 | sym->st_shndx = SHN_ABS; | |
6285 | ||
6286 | return TRUE; | |
6287 | } | |
6288 | ||
6289 | ||
6290 | /* Finish up the dynamic sections. */ | |
6291 | ||
6292 | static bfd_boolean | |
6293 | nds32_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
6294 | { | |
35c08157 KLC |
6295 | bfd *dynobj; |
6296 | asection *sdyn; | |
fbaf61ad NC |
6297 | asection *sgotplt; |
6298 | struct elf_link_hash_table *ehtab; | |
6299 | struct elf_nds32_link_hash_table *htab; | |
35c08157 | 6300 | |
fbaf61ad | 6301 | ehtab = elf_hash_table (info); |
35c08157 | 6302 | htab = nds32_elf_hash_table (info); |
fbaf61ad NC |
6303 | if (htab == NULL) |
6304 | return FALSE; | |
6305 | ||
6306 | dynobj = elf_hash_table (info)->dynobj; | |
35c08157 | 6307 | |
fbaf61ad NC |
6308 | sgotplt = ehtab->sgotplt; |
6309 | /* A broken linker script might have discarded the dynamic sections. | |
6310 | Catch this here so that we do not seg-fault later on. */ | |
6311 | if (sgotplt != NULL && bfd_is_abs_section (sgotplt->output_section)) | |
6312 | return FALSE; | |
35c08157 KLC |
6313 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
6314 | ||
fbaf61ad | 6315 | if (elf_hash_table (info)->dynamic_sections_created) |
35c08157 KLC |
6316 | { |
6317 | asection *splt; | |
6318 | Elf32_External_Dyn *dyncon, *dynconend; | |
6319 | ||
fbaf61ad | 6320 | BFD_ASSERT (sgotplt != NULL && sdyn != NULL); |
35c08157 KLC |
6321 | |
6322 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
6323 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
6324 | ||
6325 | for (; dyncon < dynconend; dyncon++) | |
6326 | { | |
6327 | Elf_Internal_Dyn dyn; | |
6328 | asection *s; | |
6329 | ||
6330 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
6331 | ||
6332 | switch (dyn.d_tag) | |
6333 | { | |
6334 | default: | |
6335 | break; | |
6336 | ||
6337 | case DT_PLTGOT: | |
fbaf61ad NC |
6338 | /* name = ".got"; */ |
6339 | s = ehtab->sgot->output_section; | |
35c08157 KLC |
6340 | goto get_vma; |
6341 | case DT_JMPREL: | |
fbaf61ad | 6342 | s = ehtab->srelplt->output_section; |
dc1e8a47 | 6343 | get_vma: |
fbaf61ad NC |
6344 | BFD_ASSERT (s != NULL); |
6345 | dyn.d_un.d_ptr = s->vma; | |
35c08157 KLC |
6346 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6347 | break; | |
6348 | ||
6349 | case DT_PLTRELSZ: | |
fbaf61ad NC |
6350 | s = ehtab->srelplt->output_section; |
6351 | BFD_ASSERT (s != NULL); | |
35c08157 KLC |
6352 | dyn.d_un.d_val = s->size; |
6353 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6354 | break; | |
fbaf61ad NC |
6355 | |
6356 | case DT_RELASZ: | |
6357 | /* My reading of the SVR4 ABI indicates that the | |
6358 | procedure linkage table relocs (DT_JMPREL) should be | |
6359 | included in the overall relocs (DT_RELA). This is | |
6360 | what Solaris does. However, UnixWare can not handle | |
6361 | that case. Therefore, we override the DT_RELASZ entry | |
6362 | here to make it not include the JMPREL relocs. Since | |
6363 | the linker script arranges for .rela.plt to follow all | |
6364 | other relocation sections, we don't have to worry | |
6365 | about changing the DT_RELA entry. */ | |
6366 | if (ehtab->srelplt != NULL) | |
6367 | { | |
6368 | s = ehtab->srelplt->output_section; | |
6369 | dyn.d_un.d_val -= s->size; | |
6370 | } | |
6371 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6372 | break; | |
6373 | ||
6374 | case DT_TLSDESC_PLT: | |
6375 | s = htab->root.splt; | |
6376 | dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset | |
9bcc30e4 | 6377 | + htab->root.tlsdesc_plt); |
fbaf61ad NC |
6378 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6379 | break; | |
6380 | ||
6381 | case DT_TLSDESC_GOT: | |
6382 | s = htab->root.sgot; | |
6383 | dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset | |
9bcc30e4 | 6384 | + htab->root.tlsdesc_got); |
fbaf61ad NC |
6385 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6386 | break; | |
35c08157 KLC |
6387 | } |
6388 | } | |
6389 | ||
6390 | /* Fill in the first entry in the procedure linkage table. */ | |
fbaf61ad | 6391 | splt = ehtab->splt; |
35c08157 KLC |
6392 | if (splt && splt->size > 0) |
6393 | { | |
0e1862bb | 6394 | if (bfd_link_pic (info)) |
35c08157 KLC |
6395 | { |
6396 | unsigned long insn; | |
6397 | long offset; | |
6398 | ||
fbaf61ad NC |
6399 | offset = sgotplt->output_section->vma + sgotplt->output_offset + 4 |
6400 | - elf_gp (output_bfd); | |
35c08157 KLC |
6401 | insn = PLT0_PIC_ENTRY_WORD0 | ((offset >> 12) & 0xfffff); |
6402 | bfd_putb32 (insn, splt->contents); | |
6403 | ||
35c08157 KLC |
6404 | /* here has a typo? */ |
6405 | insn = PLT0_PIC_ENTRY_WORD1 | (offset & 0xfff); | |
6406 | bfd_putb32 (insn, splt->contents + 4); | |
6407 | ||
6408 | insn = PLT0_PIC_ENTRY_WORD2; | |
6409 | bfd_putb32 (insn, splt->contents + 8); | |
6410 | ||
6411 | insn = PLT0_PIC_ENTRY_WORD3; | |
6412 | bfd_putb32 (insn, splt->contents + 12); | |
6413 | ||
6414 | insn = PLT0_PIC_ENTRY_WORD4; | |
6415 | bfd_putb32 (insn, splt->contents + 16); | |
6416 | ||
6417 | insn = PLT0_PIC_ENTRY_WORD5; | |
6418 | bfd_putb32 (insn, splt->contents + 20); | |
6419 | } | |
6420 | else | |
6421 | { | |
6422 | unsigned long insn; | |
6423 | unsigned long addr; | |
6424 | ||
6425 | /* addr = .got + 4 */ | |
fbaf61ad | 6426 | addr = sgotplt->output_section->vma + sgotplt->output_offset + 4; |
35c08157 KLC |
6427 | insn = PLT0_ENTRY_WORD0 | ((addr >> 12) & 0xfffff); |
6428 | bfd_putb32 (insn, splt->contents); | |
6429 | ||
6430 | insn = PLT0_ENTRY_WORD1 | (addr & 0x0fff); | |
6431 | bfd_putb32 (insn, splt->contents + 4); | |
6432 | ||
6433 | insn = PLT0_ENTRY_WORD2; | |
6434 | bfd_putb32 (insn, splt->contents + 8); | |
6435 | ||
6436 | insn = PLT0_ENTRY_WORD3; | |
6437 | bfd_putb32 (insn, splt->contents + 12); | |
6438 | ||
6439 | insn = PLT0_ENTRY_WORD4; | |
6440 | bfd_putb32 (insn, splt->contents + 16); | |
6441 | } | |
6442 | ||
6443 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
6444 | PLT_ENTRY_SIZE; | |
6445 | } | |
fbaf61ad | 6446 | |
9bcc30e4 | 6447 | if (htab->root.tlsdesc_plt) |
fbaf61ad NC |
6448 | { |
6449 | /* Calculate addresses. */ | |
6450 | asection *sgot = sgot = ehtab->sgot; | |
6451 | bfd_vma pltgot = sgotplt->output_section->vma | |
6452 | + sgotplt->output_offset; | |
6453 | bfd_vma tlsdesc_got = sgot->output_section->vma + sgot->output_offset | |
9bcc30e4 | 6454 | + htab->root.tlsdesc_got; |
fbaf61ad NC |
6455 | |
6456 | /* Get GP offset. */ | |
6457 | pltgot -= elf_gp (output_bfd) - 4; /* PLTGOT[1] */ | |
6458 | tlsdesc_got -= elf_gp (output_bfd); | |
6459 | ||
6460 | /* Do relocation. */ | |
6461 | dl_tlsdesc_lazy_trampoline[0] += ((1 << 20) - 1) & (tlsdesc_got >> 12); | |
6462 | dl_tlsdesc_lazy_trampoline[1] += 0xfff & tlsdesc_got; | |
6463 | dl_tlsdesc_lazy_trampoline[4] += ((1 << 20) - 1) & (pltgot >> 12); | |
6464 | dl_tlsdesc_lazy_trampoline[5] += 0xfff & pltgot; | |
6465 | ||
6466 | /* Insert .plt. */ | |
9bcc30e4 | 6467 | nds32_put_trampoline (splt->contents + htab->root.tlsdesc_plt, |
fbaf61ad NC |
6468 | dl_tlsdesc_lazy_trampoline, |
6469 | ARRAY_SIZE (dl_tlsdesc_lazy_trampoline)); | |
6470 | } | |
35c08157 KLC |
6471 | } |
6472 | ||
6473 | /* Fill in the first three entries in the global offset table. */ | |
fbaf61ad | 6474 | if (sgotplt && sgotplt->size > 0) |
35c08157 KLC |
6475 | { |
6476 | if (sdyn == NULL) | |
fbaf61ad | 6477 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents); |
35c08157 KLC |
6478 | else |
6479 | bfd_put_32 (output_bfd, | |
6480 | sdyn->output_section->vma + sdyn->output_offset, | |
fbaf61ad NC |
6481 | sgotplt->contents); |
6482 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4); | |
6483 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8); | |
35c08157 | 6484 | |
fbaf61ad | 6485 | elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4; |
35c08157 KLC |
6486 | } |
6487 | ||
6488 | return TRUE; | |
6489 | } | |
6490 | \f | |
6491 | ||
6492 | /* Set the right machine number. */ | |
6493 | ||
6494 | static bfd_boolean | |
6495 | nds32_elf_object_p (bfd *abfd) | |
6496 | { | |
6497 | static unsigned int cur_arch = 0; | |
6498 | ||
6499 | if (E_N1_ARCH != (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH)) | |
6500 | { | |
6501 | /* E_N1_ARCH is a wild card, so it is set only when no others exist. */ | |
6502 | cur_arch = (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH); | |
6503 | } | |
6504 | ||
6505 | switch (cur_arch) | |
6506 | { | |
6507 | default: | |
6508 | case E_N1_ARCH: | |
6509 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1); | |
6510 | break; | |
6511 | case E_N1H_ARCH: | |
6512 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h); | |
6513 | break; | |
6514 | case E_NDS_ARCH_STAR_V2_0: | |
6515 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v2); | |
6516 | break; | |
6517 | case E_NDS_ARCH_STAR_V3_0: | |
6518 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3); | |
6519 | break; | |
6520 | case E_NDS_ARCH_STAR_V3_M: | |
6521 | bfd_default_set_arch_mach (abfd, bfd_arch_nds32, bfd_mach_n1h_v3m); | |
6522 | break; | |
6523 | } | |
6524 | ||
6525 | return TRUE; | |
6526 | } | |
6527 | ||
6528 | /* Store the machine number in the flags field. */ | |
6529 | ||
cc364be6 AM |
6530 | static bfd_boolean |
6531 | nds32_elf_final_write_processing (bfd *abfd) | |
35c08157 KLC |
6532 | { |
6533 | unsigned long val; | |
6534 | static unsigned int cur_mach = 0; | |
6535 | ||
6536 | if (bfd_mach_n1 != bfd_get_mach (abfd)) | |
6537 | { | |
6538 | cur_mach = bfd_get_mach (abfd); | |
6539 | } | |
6540 | ||
6541 | switch (cur_mach) | |
6542 | { | |
6543 | case bfd_mach_n1: | |
6544 | /* Only happen when object is empty, since the case is abandon. */ | |
6545 | val = E_N1_ARCH; | |
6546 | val |= E_NDS_ABI_AABI; | |
6547 | val |= E_NDS32_ELF_VER_1_4; | |
6548 | break; | |
6549 | case bfd_mach_n1h: | |
6550 | val = E_N1H_ARCH; | |
6551 | break; | |
6552 | case bfd_mach_n1h_v2: | |
6553 | val = E_NDS_ARCH_STAR_V2_0; | |
6554 | break; | |
6555 | case bfd_mach_n1h_v3: | |
6556 | val = E_NDS_ARCH_STAR_V3_0; | |
6557 | break; | |
6558 | case bfd_mach_n1h_v3m: | |
6559 | val = E_NDS_ARCH_STAR_V3_M; | |
6560 | break; | |
6561 | default: | |
6562 | val = 0; | |
6563 | break; | |
6564 | } | |
6565 | ||
6566 | elf_elfheader (abfd)->e_flags &= ~EF_NDS_ARCH; | |
6567 | elf_elfheader (abfd)->e_flags |= val; | |
cc364be6 | 6568 | return _bfd_elf_final_write_processing (abfd); |
35c08157 KLC |
6569 | } |
6570 | ||
6571 | /* Function to keep NDS32 specific file flags. */ | |
6572 | ||
6573 | static bfd_boolean | |
6574 | nds32_elf_set_private_flags (bfd *abfd, flagword flags) | |
6575 | { | |
6576 | BFD_ASSERT (!elf_flags_init (abfd) | |
6577 | || elf_elfheader (abfd)->e_flags == flags); | |
6578 | ||
6579 | elf_elfheader (abfd)->e_flags = flags; | |
6580 | elf_flags_init (abfd) = TRUE; | |
6581 | return TRUE; | |
6582 | } | |
6583 | ||
6584 | static unsigned int | |
6585 | convert_e_flags (unsigned int e_flags, unsigned int arch) | |
6586 | { | |
6587 | if ((e_flags & EF_NDS_ARCH) == E_NDS_ARCH_STAR_V0_9) | |
6588 | { | |
6589 | /* From 0.9 to 1.0. */ | |
6590 | e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V1_0; | |
6591 | ||
6592 | /* Invert E_NDS32_HAS_NO_MAC_INST. */ | |
6593 | e_flags ^= E_NDS32_HAS_NO_MAC_INST; | |
6594 | if (arch == E_NDS_ARCH_STAR_V1_0) | |
6595 | { | |
6596 | /* Done. */ | |
6597 | return e_flags; | |
6598 | } | |
6599 | } | |
6600 | ||
6601 | /* From 1.0 to 2.0. */ | |
6602 | e_flags = (e_flags & (~EF_NDS_ARCH)) | E_NDS_ARCH_STAR_V2_0; | |
6603 | ||
6604 | /* Clear E_NDS32_HAS_MFUSR_PC_INST. */ | |
6605 | e_flags &= ~E_NDS32_HAS_MFUSR_PC_INST; | |
6606 | ||
6607 | /* Invert E_NDS32_HAS_NO_MAC_INST. */ | |
6608 | e_flags ^= E_NDS32_HAS_NO_MAC_INST; | |
6609 | return e_flags; | |
6610 | } | |
6611 | ||
6612 | static bfd_boolean | |
6613 | nds32_check_vec_size (bfd *ibfd) | |
6614 | { | |
6615 | static unsigned int nds32_vec_size = 0; | |
6616 | ||
6617 | asection *sec_t = NULL; | |
6618 | bfd_byte *contents = NULL; | |
6619 | ||
6620 | sec_t = bfd_get_section_by_name (ibfd, ".nds32_e_flags"); | |
6621 | ||
6622 | if (sec_t && sec_t->size >= 4) | |
6623 | { | |
6624 | /* Get vec_size in file. */ | |
6625 | unsigned int flag_t; | |
6626 | ||
0c4bd9d9 | 6627 | nds32_get_section_contents (ibfd, sec_t, &contents, TRUE); |
35c08157 KLC |
6628 | flag_t = bfd_get_32 (ibfd, contents); |
6629 | ||
6630 | /* The value could only be 4 or 16. */ | |
6631 | ||
6632 | if (!nds32_vec_size) | |
6633 | /* Set if not set yet. */ | |
6634 | nds32_vec_size = (flag_t & 0x3); | |
6635 | else if (nds32_vec_size != (flag_t & 0x3)) | |
6636 | { | |
4eca0228 | 6637 | _bfd_error_handler |
695344c0 | 6638 | /* xgettext:c-format */ |
871b3ab2 | 6639 | (_("%pB: ISR vector size mismatch" |
4eca0228 AM |
6640 | " with previous modules, previous %u-byte, current %u-byte"), |
6641 | ibfd, | |
6642 | nds32_vec_size == 1 ? 4 : nds32_vec_size == 2 ? 16 : 0xffffffff, | |
6643 | (flag_t & 0x3) == 1 ? 4 : (flag_t & 0x3) == 2 ? 16 : 0xffffffff); | |
35c08157 KLC |
6644 | return FALSE; |
6645 | } | |
6646 | else | |
6647 | /* Only keep the first vec_size section. */ | |
6648 | sec_t->flags |= SEC_EXCLUDE; | |
6649 | } | |
6650 | ||
6651 | return TRUE; | |
6652 | } | |
6653 | ||
6654 | /* Merge backend specific data from an object file to the output | |
6655 | object file when linking. */ | |
6656 | ||
6657 | static bfd_boolean | |
50e03d47 | 6658 | nds32_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
35c08157 | 6659 | { |
50e03d47 | 6660 | bfd *obfd = info->output_bfd; |
35c08157 KLC |
6661 | flagword out_flags; |
6662 | flagword in_flags; | |
6663 | flagword out_16regs; | |
6664 | flagword in_no_mac; | |
6665 | flagword out_no_mac; | |
6666 | flagword in_16regs; | |
6667 | flagword out_version; | |
6668 | flagword in_version; | |
6669 | flagword out_fpu_config; | |
6670 | flagword in_fpu_config; | |
6671 | ||
6b728d32 AM |
6672 | /* FIXME: What should be checked when linking shared libraries? */ |
6673 | if ((ibfd->flags & DYNAMIC) != 0) | |
6674 | return TRUE; | |
6675 | ||
35c08157 KLC |
6676 | /* TODO: Revise to use object-attributes instead. */ |
6677 | if (!nds32_check_vec_size (ibfd)) | |
6678 | return FALSE; | |
6679 | ||
6680 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
6681 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
6682 | return TRUE; | |
6683 | ||
6684 | if (bfd_little_endian (ibfd) != bfd_little_endian (obfd)) | |
6685 | { | |
4eca0228 | 6686 | _bfd_error_handler |
38f14ab8 | 6687 | (_("%pB: warning: endian mismatch with previous modules"), ibfd); |
35c08157 KLC |
6688 | |
6689 | bfd_set_error (bfd_error_bad_value); | |
6690 | return FALSE; | |
6691 | } | |
6692 | ||
fbaf61ad NC |
6693 | /* -B option in objcopy cannot work as expected. e_flags = 0 shall be |
6694 | treat as generic one without checking and merging. */ | |
6695 | if (elf_elfheader (ibfd)->e_flags) | |
35c08157 | 6696 | { |
fbaf61ad NC |
6697 | in_version = elf_elfheader (ibfd)->e_flags & EF_NDS32_ELF_VERSION; |
6698 | if (in_version == E_NDS32_ELF_VER_1_2) | |
35c08157 | 6699 | { |
fbaf61ad NC |
6700 | _bfd_error_handler |
6701 | (_("%pB: warning: older version of object file encountered, " | |
6702 | "please recompile with current tool chain"), ibfd); | |
35c08157 | 6703 | } |
35c08157 | 6704 | |
fbaf61ad NC |
6705 | /* We may need to merge V1 and V2 arch object files to V2. */ |
6706 | if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6707 | != (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)) | |
35c08157 | 6708 | { |
fbaf61ad NC |
6709 | /* Need to convert version. */ |
6710 | if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6711 | == E_NDS_ARCH_STAR_RESERVED) | |
6712 | { | |
6713 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
6714 | } | |
6715 | else if ((elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6716 | == E_NDS_ARCH_STAR_V3_M | |
6717 | && (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH) | |
6718 | == E_NDS_ARCH_STAR_V3_0) | |
6719 | { | |
6720 | elf_elfheader (ibfd)->e_flags = | |
6721 | (elf_elfheader (ibfd)->e_flags & (~EF_NDS_ARCH)) | |
6722 | | E_NDS_ARCH_STAR_V3_0; | |
6723 | } | |
6724 | else if ((elf_elfheader (obfd)->e_flags & EF_NDS_ARCH) | |
6725 | == E_NDS_ARCH_STAR_V0_9 | |
6726 | || (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH) | |
6727 | > (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)) | |
6728 | { | |
6729 | elf_elfheader (obfd)->e_flags = | |
6730 | convert_e_flags (elf_elfheader (obfd)->e_flags, | |
6731 | (elf_elfheader (ibfd)->e_flags & EF_NDS_ARCH)); | |
6732 | } | |
6733 | else | |
6734 | { | |
6735 | elf_elfheader (ibfd)->e_flags = | |
6736 | convert_e_flags (elf_elfheader (ibfd)->e_flags, | |
6737 | (elf_elfheader (obfd)->e_flags & EF_NDS_ARCH)); | |
6738 | } | |
35c08157 KLC |
6739 | } |
6740 | ||
fbaf61ad NC |
6741 | /* Extract some flags. */ |
6742 | in_flags = elf_elfheader (ibfd)->e_flags | |
6743 | & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION | |
6744 | | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF)); | |
6745 | ||
6746 | /* The following flags need special treatment. */ | |
6747 | in_16regs = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_REDUCED_REGS; | |
6748 | in_no_mac = elf_elfheader (ibfd)->e_flags & E_NDS32_HAS_NO_MAC_INST; | |
6749 | in_fpu_config = elf_elfheader (ibfd)->e_flags & E_NDS32_FPU_REG_CONF; | |
6750 | ||
6751 | /* Extract some flags. */ | |
6752 | out_flags = elf_elfheader (obfd)->e_flags | |
6753 | & (~(E_NDS32_HAS_REDUCED_REGS | EF_NDS32_ELF_VERSION | |
6754 | | E_NDS32_HAS_NO_MAC_INST | E_NDS32_FPU_REG_CONF)); | |
6755 | ||
6756 | /* The following flags need special treatment. */ | |
6757 | out_16regs = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_REDUCED_REGS; | |
6758 | out_no_mac = elf_elfheader (obfd)->e_flags & E_NDS32_HAS_NO_MAC_INST; | |
6759 | out_fpu_config = elf_elfheader (obfd)->e_flags & E_NDS32_FPU_REG_CONF; | |
6760 | out_version = elf_elfheader (obfd)->e_flags & EF_NDS32_ELF_VERSION; | |
6761 | if (!elf_flags_init (obfd)) | |
6762 | { | |
6763 | /* If the input is the default architecture then do not | |
6764 | bother setting the flags for the output architecture, | |
6765 | instead allow future merges to do this. If no future | |
6766 | merges ever set these flags then they will retain their | |
6767 | unitialised values, which surprise surprise, correspond | |
6768 | to the default values. */ | |
6769 | if (bfd_get_arch_info (ibfd)->the_default) | |
6770 | return TRUE; | |
6771 | ||
6772 | elf_flags_init (obfd) = TRUE; | |
6773 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
35c08157 | 6774 | |
fbaf61ad NC |
6775 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) |
6776 | && bfd_get_arch_info (obfd)->the_default) | |
6777 | { | |
6778 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
6779 | bfd_get_mach (ibfd)); | |
6780 | } | |
35c08157 | 6781 | |
fbaf61ad NC |
6782 | return TRUE; |
6783 | } | |
35c08157 | 6784 | |
fbaf61ad NC |
6785 | /* Check flag compatibility. */ |
6786 | if ((in_flags & EF_NDS_ABI) != (out_flags & EF_NDS_ABI)) | |
35c08157 | 6787 | { |
4eca0228 | 6788 | _bfd_error_handler |
fbaf61ad | 6789 | (_("%pB: error: ABI mismatch with previous modules"), ibfd); |
35c08157 KLC |
6790 | bfd_set_error (bfd_error_bad_value); |
6791 | return FALSE; | |
6792 | } | |
35c08157 | 6793 | |
fbaf61ad NC |
6794 | if ((in_flags & EF_NDS_ARCH) != (out_flags & EF_NDS_ARCH)) |
6795 | { | |
6796 | if (((in_flags & EF_NDS_ARCH) != E_N1_ARCH)) | |
6797 | { | |
6798 | _bfd_error_handler | |
6799 | (_("%pB: error: instruction set mismatch with previous modules"), | |
6800 | ibfd); | |
6801 | ||
6802 | bfd_set_error (bfd_error_bad_value); | |
6803 | return FALSE; | |
6804 | } | |
6805 | } | |
6806 | ||
6807 | /* When linking with V1.2 and V1.3 objects together the output is V1.2. | |
6808 | and perf ext1 and DIV are mergerd to perf ext1. */ | |
6809 | if (in_version == E_NDS32_ELF_VER_1_2 || out_version == E_NDS32_ELF_VER_1_2) | |
6810 | { | |
6811 | elf_elfheader (obfd)->e_flags = | |
6812 | (in_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6813 | | (out_flags & (~(E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6814 | | (((in_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6815 | ? E_NDS32_HAS_EXT_INST : 0) | |
6816 | | (((out_flags & (E_NDS32_HAS_EXT_INST | E_NDS32_HAS_DIV_INST))) | |
6817 | ? E_NDS32_HAS_EXT_INST : 0) | |
6818 | | (in_16regs & out_16regs) | (in_no_mac & out_no_mac) | |
6819 | | ((in_version > out_version) ? out_version : in_version); | |
6820 | } | |
6821 | else | |
6822 | { | |
6823 | if (in_version != out_version) | |
6824 | _bfd_error_handler | |
6825 | /* xgettext:c-format */ | |
6826 | (_("%pB: warning: incompatible elf-versions %s and %s"), | |
6827 | ibfd, nds32_elfver_strtab[out_version], | |
6828 | nds32_elfver_strtab[in_version]); | |
35c08157 | 6829 | |
fbaf61ad NC |
6830 | elf_elfheader (obfd)->e_flags = in_flags | out_flags |
6831 | | (in_16regs & out_16regs) | (in_no_mac & out_no_mac) | |
6832 | | (in_fpu_config > out_fpu_config ? in_fpu_config : out_fpu_config) | |
6833 | | (in_version > out_version ? out_version : in_version); | |
6834 | } | |
35c08157 KLC |
6835 | } |
6836 | ||
6837 | return TRUE; | |
6838 | } | |
6839 | ||
6840 | /* Display the flags field. */ | |
6841 | ||
6842 | static bfd_boolean | |
6843 | nds32_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
6844 | { | |
6845 | FILE *file = (FILE *) ptr; | |
6846 | ||
6847 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
6848 | ||
6849 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
6850 | ||
6851 | fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags); | |
6852 | ||
6853 | switch (elf_elfheader (abfd)->e_flags & EF_NDS_ARCH) | |
6854 | { | |
6855 | default: | |
6856 | case E_N1_ARCH: | |
6857 | fprintf (file, _(": n1 instructions")); | |
6858 | break; | |
6859 | case E_N1H_ARCH: | |
6860 | fprintf (file, _(": n1h instructions")); | |
6861 | break; | |
6862 | } | |
6863 | ||
6864 | fputc ('\n', file); | |
6865 | ||
6866 | return TRUE; | |
6867 | } | |
6868 | ||
6869 | static unsigned int | |
6870 | nds32_elf_action_discarded (asection *sec) | |
6871 | { | |
6872 | ||
6873 | if (strncmp | |
6874 | (".gcc_except_table", sec->name, sizeof (".gcc_except_table") - 1) == 0) | |
6875 | return 0; | |
6876 | ||
6877 | return _bfd_elf_default_action_discarded (sec); | |
6878 | } | |
6879 | ||
6880 | static asection * | |
6881 | nds32_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info, | |
6882 | Elf_Internal_Rela *rel, struct elf_link_hash_entry *h, | |
6883 | Elf_Internal_Sym *sym) | |
6884 | { | |
6885 | if (h != NULL) | |
6886 | switch (ELF32_R_TYPE (rel->r_info)) | |
6887 | { | |
6888 | case R_NDS32_GNU_VTINHERIT: | |
6889 | case R_NDS32_GNU_VTENTRY: | |
6890 | case R_NDS32_RELA_GNU_VTINHERIT: | |
6891 | case R_NDS32_RELA_GNU_VTENTRY: | |
6892 | return NULL; | |
6893 | } | |
6894 | ||
6895 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
6896 | } | |
6897 | ||
fbaf61ad NC |
6898 | static enum elf_nds32_tls_type |
6899 | get_tls_type (enum elf_nds32_reloc_type r_type, | |
6900 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
6901 | { | |
6902 | enum elf_nds32_tls_type tls_type; | |
6903 | ||
6904 | switch (r_type) | |
6905 | { | |
6906 | case R_NDS32_TLS_LE_HI20: | |
6907 | case R_NDS32_TLS_LE_LO12: | |
6908 | tls_type = GOT_TLS_LE; | |
6909 | break; | |
6910 | case R_NDS32_TLS_IE_HI20: | |
6911 | case R_NDS32_TLS_IE_LO12S2: | |
6912 | case R_NDS32_TLS_IE_LO12: | |
6913 | tls_type = GOT_TLS_IE; | |
6914 | break; | |
6915 | case R_NDS32_TLS_IEGP_HI20: | |
6916 | case R_NDS32_TLS_IEGP_LO12: | |
6917 | case R_NDS32_TLS_IEGP_LO12S2: | |
6918 | tls_type = GOT_TLS_IEGP; | |
6919 | break; | |
6920 | case R_NDS32_TLS_DESC_HI20: | |
6921 | case R_NDS32_TLS_DESC_LO12: | |
6922 | case R_NDS32_TLS_DESC_ADD: | |
6923 | case R_NDS32_TLS_DESC_FUNC: | |
6924 | case R_NDS32_TLS_DESC_CALL: | |
6925 | tls_type = GOT_TLS_DESC; | |
6926 | break; | |
6927 | default: | |
6928 | tls_type = GOT_NORMAL; | |
6929 | break; | |
6930 | } | |
6931 | ||
6932 | return tls_type; | |
6933 | } | |
6934 | ||
6935 | /* Ensure that we have allocated bookkeeping structures for ABFD's local | |
6936 | symbols. */ | |
6937 | ||
6938 | static bfd_boolean | |
6939 | elf32_nds32_allocate_local_sym_info (bfd *abfd) | |
6940 | { | |
6941 | if (elf_local_got_refcounts (abfd) == NULL) | |
6942 | { | |
6943 | bfd_size_type num_syms; | |
6944 | bfd_size_type size; | |
6945 | char *data; | |
6946 | ||
6947 | num_syms = elf_tdata (abfd)->symtab_hdr.sh_info; | |
6948 | /* This space is for got_refcounts, got_tls_type, tlsdesc_gotent, and | |
6949 | gp_offset. The details can refer to struct elf_nds32_obj_tdata. */ | |
6950 | size = num_syms * (sizeof (bfd_signed_vma) + sizeof (char) | |
6951 | + sizeof (bfd_vma) + sizeof (int) | |
6952 | + sizeof (bfd_boolean) + sizeof (bfd_vma)); | |
6953 | data = bfd_zalloc (abfd, size); | |
6954 | if (data == NULL) | |
6955 | return FALSE; | |
6956 | ||
6957 | elf_local_got_refcounts (abfd) = (bfd_signed_vma *) data; | |
6958 | data += num_syms * sizeof (bfd_signed_vma); | |
6959 | ||
6960 | elf32_nds32_local_got_tls_type (abfd) = (char *) data; | |
6961 | data += num_syms * sizeof (char); | |
6962 | ||
6963 | elf32_nds32_local_tlsdesc_gotent (abfd) = (bfd_vma *) data; | |
6964 | data += num_syms * sizeof (bfd_vma); | |
6965 | ||
6966 | elf32_nds32_local_gp_offset (abfd) = (int *) data; | |
6967 | data += num_syms * sizeof (int); | |
6968 | } | |
6969 | ||
6970 | return TRUE; | |
6971 | } | |
6972 | ||
35c08157 KLC |
6973 | /* Look through the relocs for a section during the first phase. |
6974 | Since we don't do .gots or .plts, we just need to consider the | |
6975 | virtual table relocs for gc. */ | |
6976 | ||
6977 | static bfd_boolean | |
6978 | nds32_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
6979 | asection *sec, const Elf_Internal_Rela *relocs) | |
6980 | { | |
6981 | Elf_Internal_Shdr *symtab_hdr; | |
6982 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
6983 | const Elf_Internal_Rela *rel; | |
6984 | const Elf_Internal_Rela *rel_end; | |
fbaf61ad | 6985 | struct elf_link_hash_table *ehtab; |
35c08157 KLC |
6986 | struct elf_nds32_link_hash_table *htab; |
6987 | bfd *dynobj; | |
6988 | asection *sreloc = NULL; | |
6989 | ||
fbaf61ad | 6990 | /* No need for relocation if relocatable already. */ |
0e1862bb | 6991 | if (bfd_link_relocatable (info)) |
fbaf61ad NC |
6992 | { |
6993 | elf32_nds32_check_relax_group (abfd, sec); | |
6994 | return TRUE; | |
6995 | } | |
35c08157 KLC |
6996 | |
6997 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
6998 | sym_hashes = elf_sym_hashes (abfd); | |
6999 | sym_hashes_end = | |
7000 | sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
7001 | if (!elf_bad_symtab (abfd)) | |
7002 | sym_hashes_end -= symtab_hdr->sh_info; | |
7003 | ||
fbaf61ad | 7004 | ehtab = elf_hash_table (info); |
35c08157 KLC |
7005 | htab = nds32_elf_hash_table (info); |
7006 | dynobj = htab->root.dynobj; | |
7007 | ||
7008 | rel_end = relocs + sec->reloc_count; | |
7009 | for (rel = relocs; rel < rel_end; rel++) | |
7010 | { | |
7011 | enum elf_nds32_reloc_type r_type; | |
7012 | struct elf_link_hash_entry *h; | |
7013 | unsigned long r_symndx; | |
fbaf61ad | 7014 | enum elf_nds32_tls_type tls_type, old_tls_type; |
35c08157 KLC |
7015 | |
7016 | r_symndx = ELF32_R_SYM (rel->r_info); | |
7017 | r_type = ELF32_R_TYPE (rel->r_info); | |
7018 | if (r_symndx < symtab_hdr->sh_info) | |
7019 | h = NULL; | |
7020 | else | |
7021 | { | |
7022 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
7023 | while (h->root.type == bfd_link_hash_indirect | |
7024 | || h->root.type == bfd_link_hash_warning) | |
7025 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7026 | } | |
7027 | ||
fbaf61ad NC |
7028 | /* Create .got section if necessary. |
7029 | Some relocs require a global offset table. We create | |
7030 | got section here, since these relocation need a got section | |
7031 | and if it is not created yet. */ | |
7032 | if (ehtab->sgot == NULL) | |
35c08157 KLC |
7033 | { |
7034 | switch (r_type) | |
7035 | { | |
7036 | case R_NDS32_GOT_HI20: | |
7037 | case R_NDS32_GOT_LO12: | |
7038 | case R_NDS32_GOT_LO15: | |
7039 | case R_NDS32_GOT_LO19: | |
7040 | case R_NDS32_GOT17S2_RELA: | |
7041 | case R_NDS32_GOT15S2_RELA: | |
7042 | case R_NDS32_GOTOFF: | |
7043 | case R_NDS32_GOTOFF_HI20: | |
7044 | case R_NDS32_GOTOFF_LO12: | |
7045 | case R_NDS32_GOTOFF_LO15: | |
7046 | case R_NDS32_GOTOFF_LO19: | |
7047 | case R_NDS32_GOTPC20: | |
7048 | case R_NDS32_GOTPC_HI20: | |
7049 | case R_NDS32_GOTPC_LO12: | |
7050 | case R_NDS32_GOT20: | |
1c8f6a4d | 7051 | case R_NDS32_TLS_IE_HI20: |
fbaf61ad | 7052 | case R_NDS32_TLS_IE_LO12: |
1c8f6a4d | 7053 | case R_NDS32_TLS_IE_LO12S2: |
fbaf61ad NC |
7054 | case R_NDS32_TLS_IEGP_HI20: |
7055 | case R_NDS32_TLS_IEGP_LO12: | |
7056 | case R_NDS32_TLS_IEGP_LO12S2: | |
7057 | case R_NDS32_TLS_DESC_HI20: | |
7058 | case R_NDS32_TLS_DESC_LO12: | |
35c08157 KLC |
7059 | if (dynobj == NULL) |
7060 | htab->root.dynobj = dynobj = abfd; | |
fbaf61ad | 7061 | if (!create_got_section (dynobj, info)) |
35c08157 KLC |
7062 | return FALSE; |
7063 | break; | |
7064 | ||
7065 | default: | |
7066 | break; | |
7067 | } | |
7068 | } | |
7069 | ||
fbaf61ad | 7070 | /* Check relocation type. */ |
35c08157 KLC |
7071 | switch ((int) r_type) |
7072 | { | |
7073 | case R_NDS32_GOT_HI20: | |
7074 | case R_NDS32_GOT_LO12: | |
7075 | case R_NDS32_GOT_LO15: | |
7076 | case R_NDS32_GOT_LO19: | |
7077 | case R_NDS32_GOT20: | |
fbaf61ad NC |
7078 | case R_NDS32_TLS_LE_HI20: |
7079 | case R_NDS32_TLS_LE_LO12: | |
1c8f6a4d | 7080 | case R_NDS32_TLS_IE_HI20: |
fbaf61ad | 7081 | case R_NDS32_TLS_IE_LO12: |
1c8f6a4d | 7082 | case R_NDS32_TLS_IE_LO12S2: |
fbaf61ad NC |
7083 | case R_NDS32_TLS_IEGP_HI20: |
7084 | case R_NDS32_TLS_IEGP_LO12: | |
7085 | case R_NDS32_TLS_IEGP_LO12S2: | |
7086 | case R_NDS32_TLS_DESC_HI20: | |
7087 | case R_NDS32_TLS_DESC_LO12: | |
7088 | tls_type = get_tls_type (r_type, h); | |
7089 | if (h) | |
1c8f6a4d | 7090 | { |
fbaf61ad NC |
7091 | if (tls_type != GOT_TLS_LE) |
7092 | h->got.refcount += 1; | |
1c8f6a4d | 7093 | old_tls_type = elf32_nds32_hash_entry (h)->tls_type; |
1c8f6a4d | 7094 | } |
35c08157 KLC |
7095 | else |
7096 | { | |
fbaf61ad NC |
7097 | /* This is a global offset table entry for a local symbol. */ |
7098 | if (!elf32_nds32_allocate_local_sym_info (abfd)) | |
7099 | return FALSE; | |
35c08157 | 7100 | |
fbaf61ad NC |
7101 | BFD_ASSERT (r_symndx < symtab_hdr->sh_info); |
7102 | if (tls_type != GOT_TLS_LE) | |
7103 | elf_local_got_refcounts (abfd)[r_symndx] += 1; | |
1c8f6a4d | 7104 | old_tls_type = elf32_nds32_local_got_tls_type (abfd)[r_symndx]; |
35c08157 | 7105 | } |
35c08157 | 7106 | |
fbaf61ad | 7107 | /* We would already have issued an error message if there |
1c8f6a4d KLC |
7108 | is a TLS/non-TLS mismatch, based on the symbol |
7109 | type. So just combine any TLS types needed. */ | |
7110 | if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL | |
7111 | && tls_type != GOT_NORMAL) | |
7112 | tls_type |= old_tls_type; | |
7113 | ||
fbaf61ad NC |
7114 | /* DESC to IE/IEGP if link to executable. */ |
7115 | if ((tls_type & (GOT_TLS_DESC | GOT_TLS_IEGP)) | |
7116 | && (bfd_link_executable (info))) | |
7117 | tls_type |= (bfd_link_pie (info) ? GOT_TLS_IEGP : GOT_TLS_IE); | |
7118 | ||
1c8f6a4d KLC |
7119 | if (old_tls_type != tls_type) |
7120 | { | |
7121 | if (h != NULL) | |
7122 | elf32_nds32_hash_entry (h)->tls_type = tls_type; | |
7123 | else | |
7124 | elf32_nds32_local_got_tls_type (abfd)[r_symndx] = tls_type; | |
7125 | } | |
7126 | break; | |
7127 | case R_NDS32_9_PLTREL: | |
35c08157 KLC |
7128 | case R_NDS32_25_PLTREL: |
7129 | case R_NDS32_PLTREL_HI20: | |
7130 | case R_NDS32_PLTREL_LO12: | |
7131 | case R_NDS32_PLT_GOTREL_HI20: | |
7132 | case R_NDS32_PLT_GOTREL_LO12: | |
7133 | case R_NDS32_PLT_GOTREL_LO15: | |
7134 | case R_NDS32_PLT_GOTREL_LO19: | |
7135 | case R_NDS32_PLT_GOTREL_LO20: | |
7136 | ||
7137 | /* This symbol requires a procedure linkage table entry. We | |
7138 | actually build the entry in adjust_dynamic_symbol, | |
7139 | because this might be a case of linking PIC code without | |
7140 | linking in any dynamic objects, in which case we don't | |
7141 | need to generate a procedure linkage table after all. */ | |
7142 | ||
7143 | /* If this is a local symbol, we resolve it directly without | |
7144 | creating a procedure linkage table entry. */ | |
7145 | if (h == NULL) | |
7146 | continue; | |
7147 | ||
fbaf61ad NC |
7148 | if (h->forced_local |
7149 | || (bfd_link_pie (info) && h->def_regular)) | |
35c08157 KLC |
7150 | break; |
7151 | ||
1c8f6a4d | 7152 | elf32_nds32_hash_entry (h)->tls_type = GOT_NORMAL; |
35c08157 KLC |
7153 | h->needs_plt = 1; |
7154 | h->plt.refcount += 1; | |
7155 | break; | |
7156 | ||
7157 | case R_NDS32_16_RELA: | |
7158 | case R_NDS32_20_RELA: | |
7159 | case R_NDS32_5_RELA: | |
7160 | case R_NDS32_32_RELA: | |
7161 | case R_NDS32_HI20_RELA: | |
7162 | case R_NDS32_LO12S3_RELA: | |
7163 | case R_NDS32_LO12S2_RELA: | |
7164 | case R_NDS32_LO12S2_DP_RELA: | |
7165 | case R_NDS32_LO12S2_SP_RELA: | |
7166 | case R_NDS32_LO12S1_RELA: | |
7167 | case R_NDS32_LO12S0_RELA: | |
7168 | case R_NDS32_LO12S0_ORI_RELA: | |
7169 | case R_NDS32_SDA16S3_RELA: | |
7170 | case R_NDS32_SDA17S2_RELA: | |
7171 | case R_NDS32_SDA18S1_RELA: | |
7172 | case R_NDS32_SDA19S0_RELA: | |
7173 | case R_NDS32_SDA15S3_RELA: | |
7174 | case R_NDS32_SDA15S2_RELA: | |
7175 | case R_NDS32_SDA12S2_DP_RELA: | |
7176 | case R_NDS32_SDA12S2_SP_RELA: | |
7177 | case R_NDS32_SDA15S1_RELA: | |
7178 | case R_NDS32_SDA15S0_RELA: | |
7179 | case R_NDS32_SDA_FP7U2_RELA: | |
7180 | case R_NDS32_15_PCREL_RELA: | |
7181 | case R_NDS32_17_PCREL_RELA: | |
7182 | case R_NDS32_25_PCREL_RELA: | |
7183 | ||
0e1862bb | 7184 | if (h != NULL && !bfd_link_pic (info)) |
35c08157 KLC |
7185 | { |
7186 | h->non_got_ref = 1; | |
7187 | h->plt.refcount += 1; | |
7188 | } | |
7189 | ||
7190 | /* If we are creating a shared library, and this is a reloc against | |
7191 | a global symbol, or a non PC relative reloc against a local | |
7192 | symbol, then we need to copy the reloc into the shared library. | |
7193 | However, if we are linking with -Bsymbolic, we do not need to | |
7194 | copy a reloc against a global symbol which is defined in an | |
7195 | object we are including in the link (i.e., DEF_REGULAR is set). | |
7196 | At this point we have not seen all the input files, so it is | |
7197 | possible that DEF_REGULAR is not set now but will be set later | |
7198 | (it is never cleared). We account for that possibility below by | |
7199 | storing information in the dyn_relocs field of the hash table | |
7200 | entry. A similar situation occurs when creating shared libraries | |
7201 | and symbol visibility changes render the symbol local. | |
7202 | ||
7203 | If on the other hand, we are creating an executable, we may need | |
7204 | to keep relocations for symbols satisfied by a dynamic library | |
7205 | if we manage to avoid copy relocs for the symbol. */ | |
0e1862bb | 7206 | if ((bfd_link_pic (info) |
35c08157 KLC |
7207 | && (sec->flags & SEC_ALLOC) != 0 |
7208 | && ((r_type != R_NDS32_25_PCREL_RELA | |
7209 | && r_type != R_NDS32_15_PCREL_RELA | |
7210 | && r_type != R_NDS32_17_PCREL_RELA | |
7211 | && !(r_type == R_NDS32_32_RELA | |
7212 | && strcmp (sec->name, ".eh_frame") == 0)) | |
7213 | || (h != NULL | |
7214 | && (!info->symbolic | |
7215 | || h->root.type == bfd_link_hash_defweak | |
7216 | || !h->def_regular)))) | |
0e1862bb | 7217 | || (!bfd_link_pic (info) |
35c08157 KLC |
7218 | && (sec->flags & SEC_ALLOC) != 0 |
7219 | && h != NULL | |
7220 | && (h->root.type == bfd_link_hash_defweak | |
7221 | || !h->def_regular))) | |
7222 | { | |
3bf083ed AM |
7223 | struct elf_dyn_relocs *p; |
7224 | struct elf_dyn_relocs **head; | |
35c08157 KLC |
7225 | |
7226 | if (dynobj == NULL) | |
7227 | htab->root.dynobj = dynobj = abfd; | |
7228 | ||
7229 | /* When creating a shared object, we must copy these | |
7230 | relocs into the output file. We create a reloc | |
7231 | section in dynobj and make room for the reloc. */ | |
7232 | if (sreloc == NULL) | |
7233 | { | |
7234 | const char *name; | |
7235 | ||
7236 | name = bfd_elf_string_from_elf_section | |
7237 | (abfd, elf_elfheader (abfd)->e_shstrndx, | |
7238 | elf_section_data (sec)->rela.hdr->sh_name); | |
7239 | if (name == NULL) | |
7240 | return FALSE; | |
7241 | ||
7242 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
fd361982 | 7243 | && strcmp (bfd_section_name (sec), |
35c08157 KLC |
7244 | name + 5) == 0); |
7245 | ||
7246 | sreloc = bfd_get_section_by_name (dynobj, name); | |
7247 | if (sreloc == NULL) | |
7248 | { | |
7249 | flagword flags; | |
7250 | ||
7251 | sreloc = bfd_make_section (dynobj, name); | |
7252 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
7253 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
7254 | if ((sec->flags & SEC_ALLOC) != 0) | |
7255 | flags |= SEC_ALLOC | SEC_LOAD; | |
7256 | if (sreloc == NULL | |
fd361982 AM |
7257 | || !bfd_set_section_flags (sreloc, flags) |
7258 | || !bfd_set_section_alignment (sreloc, 2)) | |
35c08157 KLC |
7259 | return FALSE; |
7260 | ||
7261 | elf_section_type (sreloc) = SHT_RELA; | |
7262 | } | |
7263 | elf_section_data (sec)->sreloc = sreloc; | |
7264 | } | |
7265 | ||
7266 | /* If this is a global symbol, we count the number of | |
7267 | relocations we need for this symbol. */ | |
7268 | if (h != NULL) | |
190eb1dd | 7269 | head = &h->dyn_relocs; |
35c08157 KLC |
7270 | else |
7271 | { | |
7272 | asection *s; | |
61034b0b | 7273 | void *vpp; |
35c08157 KLC |
7274 | |
7275 | Elf_Internal_Sym *isym; | |
f1dfbfdb L |
7276 | isym = bfd_sym_from_r_symndx (&htab->root.sym_cache, |
7277 | abfd, r_symndx); | |
35c08157 KLC |
7278 | if (isym == NULL) |
7279 | return FALSE; | |
7280 | ||
7281 | /* Track dynamic relocs needed for local syms too. */ | |
7282 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7283 | if (s == NULL) | |
7284 | return FALSE; | |
7285 | ||
61034b0b | 7286 | vpp = &elf_section_data (s)->local_dynrel; |
3bf083ed | 7287 | head = (struct elf_dyn_relocs **) vpp; |
35c08157 KLC |
7288 | } |
7289 | ||
7290 | p = *head; | |
7291 | if (p == NULL || p->sec != sec) | |
7292 | { | |
986f0783 | 7293 | size_t amt = sizeof (*p); |
3bf083ed | 7294 | p = (struct elf_dyn_relocs *) bfd_alloc (dynobj, amt); |
35c08157 KLC |
7295 | if (p == NULL) |
7296 | return FALSE; | |
7297 | p->next = *head; | |
7298 | *head = p; | |
7299 | p->sec = sec; | |
7300 | p->count = 0; | |
7301 | p->pc_count = 0; | |
7302 | } | |
7303 | ||
7304 | p->count += 1; | |
fbaf61ad NC |
7305 | |
7306 | /* Since eh_frame is readonly, R_NDS32_32_RELA | |
7307 | reloc for eh_frame will cause shared library has | |
7308 | TEXTREL entry in the dynamic section. This lead glibc | |
7309 | testsuites to failure (bug-13092) and cause kernel fail | |
7310 | (bug-11819). I think the best solution is to replace | |
7311 | absolute reloc with pc relative reloc in the eh_frame. | |
7312 | To do that, we need to support the following issues: | |
7313 | ||
7314 | === For GCC === | |
7315 | * gcc/config/nds32/nds32.h: Define | |
7316 | ASM_PREFERRED_EH_DATA_FORMAT to encode DW_EH_PE_pcrel | |
7317 | and DW_EH_PE_sdata4 into DWARF exception header when | |
7318 | option have '-fpic'. | |
7319 | ||
7320 | === For binutils === | |
7321 | * bfd/: Define new reloc R_NDS32_32_PCREL_RELA. | |
7322 | * gas/config/tc-nds32.h: Define DIFF_EXPR_OK. This | |
7323 | may break our nds DIFF mechanism, therefore, we | |
7324 | must disable all linker relaxations to ensure | |
7325 | correctness. | |
7326 | * gas/config/tc-nds32.c (nds32_apply_fix): Replace | |
7327 | R_NDS32_32_RELA with R_NDS32_32_PCREL_RELA, and | |
7328 | do the necessary modification. | |
7329 | ||
7330 | Unfortunately, it still have some problems for nds32 | |
7331 | to support pc relative reloc in the eh_frame. So I use | |
7332 | another solution to fix this issue. | |
7333 | ||
7334 | However, I find that ld always emit TEXTREL marker for | |
7335 | R_NDS32_NONE relocs in rel.dyn. These none relocs are | |
7336 | correspond to R_NDS32_32_RELA for .eh_frame section. | |
7337 | It means that we always reserve redundant entries of rel.dyn | |
7338 | for these relocs which actually do nothing in dynamic linker. | |
7339 | ||
7340 | Therefore, we regard these relocs as pc relative relocs | |
7341 | here and increase the pc_count. */ | |
35c08157 KLC |
7342 | if (ELF32_R_TYPE (rel->r_info) == R_NDS32_25_PCREL_RELA |
7343 | || ELF32_R_TYPE (rel->r_info) == R_NDS32_15_PCREL_RELA | |
fbaf61ad NC |
7344 | || ELF32_R_TYPE (rel->r_info) == R_NDS32_17_PCREL_RELA |
7345 | || (r_type == R_NDS32_32_RELA | |
7346 | && strcmp (sec->name, ".eh_frame") == 0)) | |
35c08157 KLC |
7347 | p->pc_count += 1; |
7348 | } | |
7349 | break; | |
7350 | ||
7351 | /* This relocation describes the C++ object vtable hierarchy. | |
7352 | Reconstruct it for later use during GC. */ | |
7353 | case R_NDS32_RELA_GNU_VTINHERIT: | |
7354 | case R_NDS32_GNU_VTINHERIT: | |
7355 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
7356 | return FALSE; | |
7357 | break; | |
7358 | ||
7359 | /* This relocation describes which C++ vtable entries are actually | |
7360 | used. Record for later use during GC. */ | |
7361 | case R_NDS32_GNU_VTENTRY: | |
7362 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) | |
7363 | return FALSE; | |
7364 | break; | |
7365 | case R_NDS32_RELA_GNU_VTENTRY: | |
7366 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
7367 | return FALSE; | |
7368 | break; | |
7369 | } | |
7370 | } | |
7371 | ||
7372 | return TRUE; | |
7373 | } | |
7374 | ||
7375 | /* Write VAL in uleb128 format to P, returning a pointer to the | |
7376 | following byte. | |
7377 | This code is copied from elf-attr.c. */ | |
7378 | ||
7379 | static bfd_byte * | |
7380 | write_uleb128 (bfd_byte *p, unsigned int val) | |
7381 | { | |
7382 | bfd_byte c; | |
7383 | do | |
7384 | { | |
7385 | c = val & 0x7f; | |
7386 | val >>= 7; | |
7387 | if (val) | |
7388 | c |= 0x80; | |
7389 | *(p++) = c; | |
7390 | } | |
7391 | while (val); | |
7392 | return p; | |
7393 | } | |
7394 | ||
7395 | static bfd_signed_vma | |
7396 | calculate_offset (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
fbaf61ad | 7397 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr) |
35c08157 KLC |
7398 | { |
7399 | bfd_signed_vma foff; | |
7400 | bfd_vma symval, addend; | |
7401 | asection *sym_sec; | |
7402 | ||
7403 | /* Get the value of the symbol referred to by the reloc. */ | |
7404 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
7405 | { | |
7406 | Elf_Internal_Sym *isym; | |
7407 | ||
7408 | /* A local symbol. */ | |
7409 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
7410 | ||
7411 | if (isym->st_shndx == SHN_UNDEF) | |
7412 | sym_sec = bfd_und_section_ptr; | |
7413 | else if (isym->st_shndx == SHN_ABS) | |
7414 | sym_sec = bfd_abs_section_ptr; | |
7415 | else if (isym->st_shndx == SHN_COMMON) | |
7416 | sym_sec = bfd_com_section_ptr; | |
7417 | else | |
7418 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7419 | symval = isym->st_value + sym_sec->output_section->vma | |
7420 | + sym_sec->output_offset; | |
7421 | } | |
7422 | else | |
7423 | { | |
7424 | unsigned long indx; | |
7425 | struct elf_link_hash_entry *h; | |
35c08157 KLC |
7426 | |
7427 | /* An external symbol. */ | |
7428 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
7429 | h = elf_sym_hashes (abfd)[indx]; | |
7430 | BFD_ASSERT (h != NULL); | |
7431 | ||
7432 | if (h->root.type != bfd_link_hash_defined | |
7433 | && h->root.type != bfd_link_hash_defweak) | |
7434 | /* This appears to be a reference to an undefined | |
7435 | symbol. Just ignore it--it will be caught by the | |
7436 | regular reloc processing. */ | |
7437 | return 0; | |
35c08157 KLC |
7438 | |
7439 | if (h->root.u.def.section->flags & SEC_MERGE) | |
7440 | { | |
7441 | sym_sec = h->root.u.def.section; | |
7442 | symval = _bfd_merged_section_offset (abfd, &sym_sec, | |
7443 | elf_section_data (sym_sec)->sec_info, | |
7444 | h->root.u.def.value); | |
7445 | symval = symval + sym_sec->output_section->vma | |
7446 | + sym_sec->output_offset; | |
7447 | } | |
7448 | else | |
7449 | symval = (h->root.u.def.value | |
7450 | + h->root.u.def.section->output_section->vma | |
7451 | + h->root.u.def.section->output_offset); | |
7452 | } | |
7453 | ||
7454 | addend = irel->r_addend; | |
7455 | ||
7456 | foff = (symval + addend | |
7457 | - (irel->r_offset + sec->output_section->vma + sec->output_offset)); | |
7458 | return foff; | |
7459 | } | |
35c08157 | 7460 | \f |
fbaf61ad | 7461 | |
35c08157 KLC |
7462 | /* Convert a 32-bit instruction to 16-bit one. |
7463 | INSN is the input 32-bit instruction, INSN16 is the output 16-bit | |
7464 | instruction. If INSN_TYPE is not NULL, it the CGEN instruction | |
7465 | type of INSN16. Return 1 if successful. */ | |
7466 | ||
7467 | static int | |
7468 | nds32_convert_32_to_16_alu1 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7469 | int *pinsn_type) | |
7470 | { | |
7471 | uint16_t insn16 = 0; | |
6cae483a | 7472 | int insn_type = 0; |
35c08157 KLC |
7473 | unsigned long mach = bfd_get_mach (abfd); |
7474 | ||
7475 | if (N32_SH5 (insn) != 0) | |
7476 | return 0; | |
7477 | ||
7478 | switch (N32_SUB5 (insn)) | |
7479 | { | |
7480 | case N32_ALU1_ADD_SLLI: | |
7481 | case N32_ALU1_ADD_SRLI: | |
7482 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn)) | |
7483 | { | |
7484 | insn16 = N16_TYPE333 (ADD333, N32_RT5 (insn), N32_RA5 (insn), | |
7485 | N32_RB5 (insn)); | |
7486 | insn_type = NDS32_INSN_ADD333; | |
7487 | } | |
7488 | else if (N32_IS_RT4 (insn)) | |
7489 | { | |
7490 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7491 | insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RB5 (insn)); | |
7492 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7493 | insn16 = N16_TYPE45 (ADD45, N32_RT54 (insn), N32_RA5 (insn)); | |
7494 | insn_type = NDS32_INSN_ADD45; | |
7495 | } | |
7496 | break; | |
7497 | ||
7498 | case N32_ALU1_SUB_SLLI: | |
7499 | case N32_ALU1_SUB_SRLI: | |
7500 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IS_RB3 (insn)) | |
7501 | { | |
7502 | insn16 = N16_TYPE333 (SUB333, N32_RT5 (insn), N32_RA5 (insn), | |
7503 | N32_RB5 (insn)); | |
7504 | insn_type = NDS32_INSN_SUB333; | |
7505 | } | |
7506 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7507 | { | |
7508 | insn16 = N16_TYPE45 (SUB45, N32_RT54 (insn), N32_RB5 (insn)); | |
7509 | insn_type = NDS32_INSN_SUB45; | |
7510 | } | |
7511 | break; | |
7512 | ||
7513 | case N32_ALU1_AND_SLLI: | |
7514 | case N32_ALU1_AND_SRLI: | |
7515 | /* and $rt, $rt, $rb -> and33 for v3, v3m. */ | |
7516 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7517 | && N32_IS_RB3 (insn)) | |
7518 | { | |
7519 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7520 | insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RB5 (insn)); | |
7521 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7522 | insn16 = N16_MISC33 (AND33, N32_RT5 (insn), N32_RA5 (insn)); | |
7523 | if (insn16) | |
7524 | insn_type = NDS32_INSN_AND33; | |
7525 | } | |
7526 | break; | |
7527 | ||
7528 | case N32_ALU1_XOR_SLLI: | |
7529 | case N32_ALU1_XOR_SRLI: | |
7530 | /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */ | |
7531 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7532 | && N32_IS_RB3 (insn)) | |
7533 | { | |
7534 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7535 | insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RB5 (insn)); | |
7536 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7537 | insn16 = N16_MISC33 (XOR33, N32_RT5 (insn), N32_RA5 (insn)); | |
7538 | if (insn16) | |
7539 | insn_type = NDS32_INSN_XOR33; | |
7540 | } | |
7541 | break; | |
7542 | ||
7543 | case N32_ALU1_OR_SLLI: | |
7544 | case N32_ALU1_OR_SRLI: | |
7545 | /* or $rt, $rt, $rb -> or33 for v3, v3m. */ | |
7546 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7547 | && N32_IS_RB3 (insn)) | |
7548 | { | |
7549 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7550 | insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RB5 (insn)); | |
7551 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7552 | insn16 = N16_MISC33 (OR33, N32_RT5 (insn), N32_RA5 (insn)); | |
7553 | if (insn16) | |
7554 | insn_type = NDS32_INSN_OR33; | |
7555 | } | |
7556 | break; | |
7557 | case N32_ALU1_NOR: | |
7558 | /* nor $rt, $ra, $ra -> not33 for v3, v3m. */ | |
7559 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RB3 (insn) | |
7560 | && N32_RA5 (insn) == N32_RB5 (insn)) | |
7561 | { | |
7562 | insn16 = N16_MISC33 (NOT33, N32_RT5 (insn), N32_RA5 (insn)); | |
7563 | insn_type = NDS32_INSN_NOT33; | |
7564 | } | |
7565 | break; | |
7566 | case N32_ALU1_SRAI: | |
7567 | if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7568 | { | |
7569 | insn16 = N16_TYPE45 (SRAI45, N32_RT54 (insn), N32_UB5 (insn)); | |
7570 | insn_type = NDS32_INSN_SRAI45; | |
7571 | } | |
7572 | break; | |
7573 | ||
7574 | case N32_ALU1_SRLI: | |
7575 | if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn)) | |
7576 | { | |
7577 | insn16 = N16_TYPE45 (SRLI45, N32_RT54 (insn), N32_UB5 (insn)); | |
7578 | insn_type = NDS32_INSN_SRLI45; | |
7579 | } | |
7580 | break; | |
7581 | ||
7582 | case N32_ALU1_SLLI: | |
7583 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_UB5 (insn) < 8) | |
7584 | { | |
7585 | insn16 = N16_TYPE333 (SLLI333, N32_RT5 (insn), N32_RA5 (insn), | |
7586 | N32_UB5 (insn)); | |
7587 | insn_type = NDS32_INSN_SLLI333; | |
7588 | } | |
7589 | break; | |
7590 | ||
7591 | case N32_ALU1_ZEH: | |
7592 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7593 | { | |
7594 | insn16 = N16_BFMI333 (ZEH33, N32_RT5 (insn), N32_RA5 (insn)); | |
7595 | insn_type = NDS32_INSN_ZEH33; | |
7596 | } | |
7597 | break; | |
7598 | ||
7599 | case N32_ALU1_SEB: | |
7600 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7601 | { | |
7602 | insn16 = N16_BFMI333 (SEB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7603 | insn_type = NDS32_INSN_SEB33; | |
7604 | } | |
7605 | break; | |
7606 | ||
7607 | case N32_ALU1_SEH: | |
7608 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7609 | { | |
7610 | insn16 = N16_BFMI333 (SEH33, N32_RT5 (insn), N32_RA5 (insn)); | |
7611 | insn_type = NDS32_INSN_SEH33; | |
7612 | } | |
7613 | break; | |
7614 | ||
7615 | case N32_ALU1_SLT: | |
7616 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)) | |
7617 | { | |
7618 | /* Implicit r15. */ | |
7619 | insn16 = N16_TYPE45 (SLT45, N32_RA54 (insn), N32_RB5 (insn)); | |
7620 | insn_type = NDS32_INSN_SLT45; | |
7621 | } | |
7622 | break; | |
7623 | ||
7624 | case N32_ALU1_SLTS: | |
7625 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn)) | |
7626 | { | |
7627 | /* Implicit r15. */ | |
7628 | insn16 = N16_TYPE45 (SLTS45, N32_RA54 (insn), N32_RB5 (insn)); | |
7629 | insn_type = NDS32_INSN_SLTS45; | |
7630 | } | |
7631 | break; | |
7632 | } | |
7633 | ||
7634 | if ((insn16 & 0x8000) == 0) | |
7635 | return 0; | |
7636 | ||
7637 | if (pinsn16) | |
7638 | *pinsn16 = insn16; | |
7639 | if (pinsn_type) | |
7640 | *pinsn_type = insn_type; | |
7641 | return 1; | |
7642 | } | |
7643 | ||
7644 | static int | |
7645 | nds32_convert_32_to_16_alu2 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7646 | int *pinsn_type) | |
7647 | { | |
7648 | uint16_t insn16 = 0; | |
7649 | int insn_type; | |
7650 | unsigned long mach = bfd_get_mach (abfd); | |
7651 | ||
7652 | /* TODO: bset, bclr, btgl, btst. */ | |
7653 | if (__GF (insn, 6, 4) != 0) | |
7654 | return 0; | |
7655 | ||
7656 | switch (N32_IMMU (insn, 6)) | |
7657 | { | |
7658 | case N32_ALU2_MUL: | |
7659 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7660 | && N32_IS_RB3 (insn)) | |
7661 | { | |
7662 | if (N32_RT5 (insn) == N32_RA5 (insn)) | |
7663 | insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RB5 (insn)); | |
7664 | else if (N32_RT5 (insn) == N32_RB5 (insn)) | |
7665 | insn16 = N16_MISC33 (MUL33, N32_RT5 (insn), N32_RA5 (insn)); | |
7666 | if (insn16) | |
7667 | insn_type = NDS32_INSN_MUL33; | |
7668 | } | |
7669 | } | |
7670 | ||
7671 | if ((insn16 & 0x8000) == 0) | |
7672 | return 0; | |
7673 | ||
7674 | if (pinsn16) | |
7675 | *pinsn16 = insn16; | |
7676 | if (pinsn_type) | |
7677 | *pinsn_type = insn_type; | |
7678 | return 1; | |
7679 | } | |
7680 | ||
7681 | int | |
7682 | nds32_convert_32_to_16 (bfd *abfd, uint32_t insn, uint16_t *pinsn16, | |
7683 | int *pinsn_type) | |
7684 | { | |
7685 | int op6; | |
7686 | uint16_t insn16 = 0; | |
1624c9ca | 7687 | int insn_type = 0; |
35c08157 KLC |
7688 | unsigned long mach = bfd_get_mach (abfd); |
7689 | ||
7690 | /* Decode 32-bit instruction. */ | |
7691 | if (insn & 0x80000000) | |
7692 | { | |
7693 | /* Not 32-bit insn. */ | |
7694 | return 0; | |
7695 | } | |
7696 | ||
7697 | op6 = N32_OP6 (insn); | |
7698 | ||
7699 | /* Convert it to 16-bit instruction. */ | |
7700 | switch (op6) | |
7701 | { | |
7702 | case N32_OP6_MOVI: | |
7703 | if (IS_WITHIN_S (N32_IMM20S (insn), 5)) | |
7704 | { | |
7705 | insn16 = N16_TYPE55 (MOVI55, N32_RT5 (insn), N32_IMM20S (insn)); | |
7706 | insn_type = NDS32_INSN_MOVI55; | |
7707 | } | |
7708 | else if (mach >= MACH_V3 && N32_IMM20S (insn) >= 16 | |
7709 | && N32_IMM20S (insn) < 48 && N32_IS_RT4 (insn)) | |
7710 | { | |
7711 | insn16 = N16_TYPE45 (MOVPI45, N32_RT54 (insn), | |
7712 | N32_IMM20S (insn) - 16); | |
7713 | insn_type = NDS32_INSN_MOVPI45; | |
7714 | } | |
7715 | break; | |
7716 | ||
7717 | case N32_OP6_ADDI: | |
7718 | if (N32_IMM15S (insn) == 0) | |
7719 | { | |
7720 | /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp', | |
7721 | because `mov55 $sp, $sp' is ifret16 in V3 ISA. */ | |
7722 | if (mach <= MACH_V2 | |
7723 | || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP) | |
7724 | { | |
7725 | insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn)); | |
7726 | insn_type = NDS32_INSN_MOV55; | |
7727 | } | |
7728 | } | |
7729 | else if (N32_IMM15S (insn) > 0) | |
7730 | { | |
7731 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) < 8) | |
7732 | { | |
7733 | insn16 = N16_TYPE333 (ADDI333, N32_RT5 (insn), N32_RA5 (insn), | |
7734 | N32_IMM15S (insn)); | |
7735 | insn_type = NDS32_INSN_ADDI333; | |
7736 | } | |
7737 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn) | |
7738 | && N32_IMM15S (insn) < 32) | |
7739 | { | |
7740 | insn16 = N16_TYPE45 (ADDI45, N32_RT54 (insn), N32_IMM15S (insn)); | |
7741 | insn_type = NDS32_INSN_ADDI45; | |
7742 | } | |
7743 | else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP | |
7744 | && N32_RT5 (insn) == N32_RA5 (insn) | |
7745 | && N32_IMM15S (insn) < 512) | |
7746 | { | |
7747 | insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn)); | |
7748 | insn_type = NDS32_INSN_ADDI10_SP; | |
7749 | } | |
7750 | else if (mach >= MACH_V3 && N32_IS_RT3 (insn) | |
7751 | && N32_RA5 (insn) == REG_SP && N32_IMM15S (insn) < 256 | |
7752 | && (N32_IMM15S (insn) % 4 == 0)) | |
7753 | { | |
7754 | insn16 = N16_TYPE36 (ADDRI36_SP, N32_RT5 (insn), | |
7755 | N32_IMM15S (insn) >> 2); | |
7756 | insn_type = NDS32_INSN_ADDRI36_SP; | |
7757 | } | |
7758 | } | |
7759 | else | |
7760 | { | |
7761 | /* Less than 0. */ | |
7762 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) && N32_IMM15S (insn) > -8) | |
7763 | { | |
7764 | insn16 = N16_TYPE333 (SUBI333, N32_RT5 (insn), N32_RA5 (insn), | |
7765 | 0 - N32_IMM15S (insn)); | |
7766 | insn_type = NDS32_INSN_SUBI333; | |
7767 | } | |
7768 | else if (N32_IS_RT4 (insn) && N32_RT5 (insn) == N32_RA5 (insn) | |
7769 | && N32_IMM15S (insn) > -32) | |
7770 | { | |
1c8f6a4d KLC |
7771 | insn16 = N16_TYPE45 (SUBI45, N32_RT54 (insn), |
7772 | 0 - N32_IMM15S (insn)); | |
35c08157 KLC |
7773 | insn_type = NDS32_INSN_SUBI45; |
7774 | } | |
7775 | else if (mach >= MACH_V2 && N32_RT5 (insn) == REG_SP | |
7776 | && N32_RT5 (insn) == N32_RA5 (insn) | |
7777 | && N32_IMM15S (insn) >= -512) | |
7778 | { | |
7779 | insn16 = N16_TYPE10 (ADDI10S, N32_IMM15S (insn)); | |
7780 | insn_type = NDS32_INSN_ADDI10_SP; | |
7781 | } | |
7782 | } | |
7783 | break; | |
7784 | ||
7785 | case N32_OP6_ORI: | |
7786 | if (N32_IMM15S (insn) == 0) | |
7787 | { | |
7788 | /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp', | |
7789 | because `mov55 $sp, $sp' is ifret16 in V3 ISA. */ | |
7790 | if (mach <= MACH_V2 | |
7791 | || N32_RT5 (insn) != REG_SP || N32_RA5 (insn) != REG_SP) | |
7792 | { | |
7793 | insn16 = N16_TYPE55 (MOV55, N32_RT5 (insn), N32_RA5 (insn)); | |
7794 | insn_type = NDS32_INSN_MOV55; | |
7795 | } | |
7796 | } | |
7797 | break; | |
7798 | ||
7799 | case N32_OP6_SUBRI: | |
7800 | if (mach >= MACH_V3 && N32_IS_RT3 (insn) | |
7801 | && N32_IS_RA3 (insn) && N32_IMM15S (insn) == 0) | |
7802 | { | |
7803 | insn16 = N16_MISC33 (NEG33, N32_RT5 (insn), N32_RA5 (insn)); | |
7804 | insn_type = NDS32_INSN_NEG33; | |
7805 | } | |
7806 | break; | |
7807 | ||
7808 | case N32_OP6_ANDI: | |
7809 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn)) | |
7810 | { | |
7811 | if (N32_IMM15U (insn) == 1) | |
7812 | { | |
7813 | insn16 = N16_BFMI333 (XLSB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7814 | insn_type = NDS32_INSN_XLSB33; | |
7815 | } | |
7816 | else if (N32_IMM15U (insn) == 0x7ff) | |
7817 | { | |
7818 | insn16 = N16_BFMI333 (X11B33, N32_RT5 (insn), N32_RA5 (insn)); | |
7819 | insn_type = NDS32_INSN_X11B33; | |
7820 | } | |
7821 | else if (N32_IMM15U (insn) == 0xff) | |
7822 | { | |
7823 | insn16 = N16_BFMI333 (ZEB33, N32_RT5 (insn), N32_RA5 (insn)); | |
7824 | insn_type = NDS32_INSN_ZEB33; | |
7825 | } | |
7826 | else if (mach >= MACH_V3 && N32_RT5 (insn) == N32_RA5 (insn) | |
7827 | && N32_IMM15U (insn) < 256) | |
7828 | { | |
7829 | int imm15u = N32_IMM15U (insn); | |
7830 | ||
7831 | if (__builtin_popcount (imm15u) == 1) | |
7832 | { | |
7833 | /* BMSKI33 */ | |
7834 | int imm3u = __builtin_ctz (imm15u); | |
7835 | ||
7836 | insn16 = N16_BFMI333 (BMSKI33, N32_RT5 (insn), imm3u); | |
7837 | insn_type = NDS32_INSN_BMSKI33; | |
7838 | } | |
7839 | else if (imm15u != 0 && __builtin_popcount (imm15u + 1) == 1) | |
7840 | { | |
7841 | /* FEXTI33 */ | |
7842 | int imm3u = __builtin_ctz (imm15u + 1) - 1; | |
7843 | ||
7844 | insn16 = N16_BFMI333 (FEXTI33, N32_RT5 (insn), imm3u); | |
7845 | insn_type = NDS32_INSN_FEXTI33; | |
7846 | } | |
7847 | } | |
7848 | } | |
7849 | break; | |
7850 | ||
7851 | case N32_OP6_SLTI: | |
7852 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn) | |
7853 | && IS_WITHIN_U (N32_IMM15S (insn), 5)) | |
7854 | { | |
7855 | insn16 = N16_TYPE45 (SLTI45, N32_RA54 (insn), N32_IMM15S (insn)); | |
7856 | insn_type = NDS32_INSN_SLTI45; | |
7857 | } | |
7858 | break; | |
7859 | ||
7860 | case N32_OP6_SLTSI: | |
7861 | if (N32_RT5 (insn) == REG_R15 && N32_IS_RA4 (insn) | |
7862 | && IS_WITHIN_U (N32_IMM15S (insn), 5)) | |
7863 | { | |
7864 | insn16 = N16_TYPE45 (SLTSI45, N32_RA54 (insn), N32_IMM15S (insn)); | |
7865 | insn_type = NDS32_INSN_SLTSI45; | |
7866 | } | |
7867 | break; | |
7868 | ||
7869 | case N32_OP6_LWI: | |
7870 | if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0) | |
7871 | { | |
7872 | insn16 = N16_TYPE45 (LWI450, N32_RT54 (insn), N32_RA5 (insn)); | |
7873 | insn_type = NDS32_INSN_LWI450; | |
7874 | } | |
7875 | else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7876 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7877 | { | |
7878 | insn16 = N16_TYPE333 (LWI333, N32_RT5 (insn), N32_RA5 (insn), | |
7879 | N32_IMM15S (insn)); | |
7880 | insn_type = NDS32_INSN_LWI333; | |
7881 | } | |
7882 | else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP | |
7883 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
7884 | { | |
7885 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
7886 | insn_type = NDS32_INSN_LWI37; | |
7887 | } | |
7888 | else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP | |
7889 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
7890 | { | |
7891 | insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
7892 | insn_type = NDS32_INSN_LWI37_SP; | |
7893 | } | |
7894 | else if (mach >= MACH_V2 && N32_IS_RT4 (insn) && N32_RA5 (insn) == REG_R8 | |
7895 | && -32 <= N32_IMM15S (insn) && N32_IMM15S (insn) < 0) | |
7896 | { | |
1c8f6a4d KLC |
7897 | insn16 = N16_TYPE45 (LWI45_FE, N32_RT54 (insn), |
7898 | N32_IMM15S (insn) + 32); | |
35c08157 KLC |
7899 | insn_type = NDS32_INSN_LWI45_FE; |
7900 | } | |
7901 | break; | |
7902 | ||
7903 | case N32_OP6_SWI: | |
7904 | if (N32_IS_RT4 (insn) && N32_IMM15S (insn) == 0) | |
7905 | { | |
7906 | insn16 = N16_TYPE45 (SWI450, N32_RT54 (insn), N32_RA5 (insn)); | |
7907 | insn_type = NDS32_INSN_SWI450; | |
7908 | } | |
7909 | else if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7910 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7911 | { | |
1c8f6a4d KLC |
7912 | insn16 = N16_TYPE333 (SWI333, N32_RT5 (insn), N32_RA5 (insn), |
7913 | N32_IMM15S (insn)); | |
35c08157 KLC |
7914 | insn_type = NDS32_INSN_SWI333; |
7915 | } | |
7916 | else if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_FP | |
7917 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
7918 | { | |
7919 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
7920 | insn_type = NDS32_INSN_SWI37; | |
7921 | } | |
7922 | else if (mach >= MACH_V2 && N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_SP | |
7923 | && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
7924 | { | |
7925 | insn16 = N16_TYPE37 (XWI37SP, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
7926 | insn_type = NDS32_INSN_SWI37_SP; | |
7927 | } | |
7928 | break; | |
7929 | ||
7930 | case N32_OP6_LWI_BI: | |
7931 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7932 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7933 | { | |
7934 | insn16 = N16_TYPE333 (LWI333_BI, N32_RT5 (insn), N32_RA5 (insn), | |
7935 | N32_IMM15S (insn)); | |
7936 | insn_type = NDS32_INSN_LWI333_BI; | |
7937 | } | |
7938 | break; | |
7939 | ||
7940 | case N32_OP6_SWI_BI: | |
7941 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7942 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7943 | { | |
7944 | insn16 = N16_TYPE333 (SWI333_BI, N32_RT5 (insn), N32_RA5 (insn), | |
7945 | N32_IMM15S (insn)); | |
7946 | insn_type = NDS32_INSN_SWI333_BI; | |
7947 | } | |
7948 | break; | |
7949 | ||
7950 | case N32_OP6_LHI: | |
7951 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7952 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7953 | { | |
7954 | insn16 = N16_TYPE333 (LHI333, N32_RT5 (insn), N32_RA5 (insn), | |
7955 | N32_IMM15S (insn)); | |
7956 | insn_type = NDS32_INSN_LHI333; | |
7957 | } | |
7958 | break; | |
7959 | ||
7960 | case N32_OP6_SHI: | |
7961 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7962 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7963 | { | |
7964 | insn16 = N16_TYPE333 (SHI333, N32_RT5 (insn), N32_RA5 (insn), | |
7965 | N32_IMM15S (insn)); | |
7966 | insn_type = NDS32_INSN_SHI333; | |
7967 | } | |
7968 | break; | |
7969 | ||
7970 | case N32_OP6_LBI: | |
7971 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7972 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7973 | { | |
7974 | insn16 = N16_TYPE333 (LBI333, N32_RT5 (insn), N32_RA5 (insn), | |
7975 | N32_IMM15S (insn)); | |
7976 | insn_type = NDS32_INSN_LBI333; | |
7977 | } | |
7978 | break; | |
7979 | ||
7980 | case N32_OP6_SBI: | |
7981 | if (N32_IS_RT3 (insn) && N32_IS_RA3 (insn) | |
7982 | && IS_WITHIN_U (N32_IMM15S (insn), 3)) | |
7983 | { | |
7984 | insn16 = N16_TYPE333 (SBI333, N32_RT5 (insn), N32_RA5 (insn), | |
7985 | N32_IMM15S (insn)); | |
7986 | insn_type = NDS32_INSN_SBI333; | |
7987 | } | |
7988 | break; | |
7989 | ||
7990 | case N32_OP6_ALU1: | |
7991 | return nds32_convert_32_to_16_alu1 (abfd, insn, pinsn16, pinsn_type); | |
7992 | ||
7993 | case N32_OP6_ALU2: | |
7994 | return nds32_convert_32_to_16_alu2 (abfd, insn, pinsn16, pinsn_type); | |
7995 | ||
7996 | case N32_OP6_BR1: | |
7997 | if (!IS_WITHIN_S (N32_IMM14S (insn), 8)) | |
7998 | goto done; | |
7999 | ||
4ec521f2 | 8000 | if ((insn & N32_BIT (14)) == 0) |
35c08157 KLC |
8001 | { |
8002 | /* N32_BR1_BEQ */ | |
8003 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5 | |
8004 | && N32_RT5 (insn) != REG_R5) | |
8005 | insn16 = N16_TYPE38 (BEQS38, N32_RT5 (insn), N32_IMM14S (insn)); | |
8006 | else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5 | |
8007 | && N32_RA5 (insn) != REG_R5) | |
8008 | insn16 = N16_TYPE38 (BEQS38, N32_RA5 (insn), N32_IMM14S (insn)); | |
8009 | insn_type = NDS32_INSN_BEQS38; | |
8010 | break; | |
8011 | } | |
8012 | else | |
8013 | { | |
8014 | /* N32_BR1_BNE */ | |
8015 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5 | |
8016 | && N32_RT5 (insn) != REG_R5) | |
8017 | insn16 = N16_TYPE38 (BNES38, N32_RT5 (insn), N32_IMM14S (insn)); | |
8018 | else if (N32_IS_RA3 (insn) && N32_RT5 (insn) == REG_R5 | |
8019 | && N32_RA5 (insn) != REG_R5) | |
8020 | insn16 = N16_TYPE38 (BNES38, N32_RA5 (insn), N32_IMM14S (insn)); | |
8021 | insn_type = NDS32_INSN_BNES38; | |
8022 | break; | |
8023 | } | |
8024 | break; | |
8025 | ||
8026 | case N32_OP6_BR2: | |
8027 | switch (N32_BR2_SUB (insn)) | |
8028 | { | |
8029 | case N32_BR2_BEQZ: | |
8030 | if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
8031 | { | |
8032 | insn16 = N16_TYPE38 (BEQZ38, N32_RT5 (insn), N32_IMM16S (insn)); | |
8033 | insn_type = NDS32_INSN_BEQZ38; | |
8034 | } | |
1c8f6a4d KLC |
8035 | else if (N32_RT5 (insn) == REG_R15 |
8036 | && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
35c08157 KLC |
8037 | { |
8038 | insn16 = N16_TYPE8 (BEQZS8, N32_IMM16S (insn)); | |
8039 | insn_type = NDS32_INSN_BEQZS8; | |
8040 | } | |
8041 | break; | |
8042 | ||
8043 | case N32_BR2_BNEZ: | |
8044 | if (N32_IS_RT3 (insn) && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
8045 | { | |
8046 | insn16 = N16_TYPE38 (BNEZ38, N32_RT5 (insn), N32_IMM16S (insn)); | |
8047 | insn_type = NDS32_INSN_BNEZ38; | |
8048 | } | |
1c8f6a4d KLC |
8049 | else if (N32_RT5 (insn) == REG_R15 |
8050 | && IS_WITHIN_S (N32_IMM16S (insn), 8)) | |
35c08157 KLC |
8051 | { |
8052 | insn16 = N16_TYPE8 (BNEZS8, N32_IMM16S (insn)); | |
8053 | insn_type = NDS32_INSN_BNEZS8; | |
8054 | } | |
8055 | break; | |
8056 | ||
fbaf61ad NC |
8057 | case N32_BR2_SOP0: |
8058 | if (__GF (insn, 20, 5) == 0 && IS_WITHIN_U (N32_IMM16S (insn), 9)) | |
35c08157 KLC |
8059 | { |
8060 | insn16 = N16_TYPE9 (IFCALL9, N32_IMM16S (insn)); | |
8061 | insn_type = NDS32_INSN_IFCALL9; | |
8062 | } | |
8063 | break; | |
8064 | } | |
8065 | break; | |
8066 | ||
8067 | case N32_OP6_JI: | |
4ec521f2 | 8068 | if ((insn & N32_BIT (24)) == 0) |
35c08157 KLC |
8069 | { |
8070 | /* N32_JI_J */ | |
8071 | if (IS_WITHIN_S (N32_IMM24S (insn), 8)) | |
8072 | { | |
8073 | insn16 = N16_TYPE8 (J8, N32_IMM24S (insn)); | |
8074 | insn_type = NDS32_INSN_J8; | |
8075 | } | |
8076 | } | |
8077 | break; | |
8078 | ||
8079 | case N32_OP6_JREG: | |
8080 | if (__GF (insn, 8, 2) != 0) | |
8081 | goto done; | |
8082 | ||
8083 | switch (N32_IMMU (insn, 5)) | |
8084 | { | |
8085 | case N32_JREG_JR: | |
8086 | if (N32_JREG_HINT (insn) == 0) | |
8087 | { | |
8088 | /* jr */ | |
8089 | insn16 = N16_TYPE5 (JR5, N32_RB5 (insn)); | |
8090 | insn_type = NDS32_INSN_JR5; | |
8091 | } | |
8092 | else if (N32_JREG_HINT (insn) == 1) | |
8093 | { | |
8094 | /* ret */ | |
8095 | insn16 = N16_TYPE5 (RET5, N32_RB5 (insn)); | |
8096 | insn_type = NDS32_INSN_RET5; | |
8097 | } | |
8098 | else if (N32_JREG_HINT (insn) == 3) | |
8099 | { | |
8100 | /* ifret = mov55 $sp, $sp */ | |
8101 | insn16 = N16_TYPE55 (MOV55, REG_SP, REG_SP); | |
8102 | insn_type = NDS32_INSN_IFRET; | |
8103 | } | |
8104 | break; | |
8105 | ||
8106 | case N32_JREG_JRAL: | |
8107 | /* It's convertible when return rt5 is $lp and address | |
8108 | translation is kept. */ | |
8109 | if (N32_RT5 (insn) == REG_LP && N32_JREG_HINT (insn) == 0) | |
8110 | { | |
8111 | insn16 = N16_TYPE5 (JRAL5, N32_RB5 (insn)); | |
8112 | insn_type = NDS32_INSN_JRAL5; | |
8113 | } | |
8114 | break; | |
8115 | } | |
8116 | break; | |
8117 | ||
8118 | case N32_OP6_MISC: | |
8119 | if (N32_SUB5 (insn) == N32_MISC_BREAK && N32_SWID (insn) < 32) | |
8120 | { | |
8121 | /* For v3, swid above 31 are used for ex9.it. */ | |
8122 | insn16 = N16_TYPE5 (BREAK16, N32_SWID (insn)); | |
8123 | insn_type = NDS32_INSN_BREAK16; | |
8124 | } | |
8125 | break; | |
8126 | ||
8127 | default: | |
8128 | /* This instruction has no 16-bit variant. */ | |
8129 | goto done; | |
8130 | } | |
8131 | ||
dc1e8a47 | 8132 | done: |
35c08157 KLC |
8133 | /* Bit-15 of insn16 should be set for a valid instruction. */ |
8134 | if ((insn16 & 0x8000) == 0) | |
8135 | return 0; | |
8136 | ||
8137 | if (pinsn16) | |
8138 | *pinsn16 = insn16; | |
8139 | if (pinsn_type) | |
8140 | *pinsn_type = insn_type; | |
8141 | return 1; | |
8142 | } | |
8143 | ||
8144 | static int | |
8145 | special_convert_32_to_16 (unsigned long insn, uint16_t *pinsn16, | |
8146 | Elf_Internal_Rela *reloc) | |
8147 | { | |
8148 | uint16_t insn16 = 0; | |
8149 | ||
8150 | if ((reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) == 0 | |
8151 | || (ELF32_R_TYPE (reloc->r_info) != R_NDS32_INSN16)) | |
8152 | return 0; | |
8153 | ||
8154 | if (!N32_IS_RT3 (insn)) | |
8155 | return 0; | |
8156 | ||
8157 | switch (N32_OP6 (insn)) | |
8158 | { | |
8159 | case N32_OP6_LWI: | |
8160 | if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8161 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM15S (insn)); | |
8162 | break; | |
8163 | case N32_OP6_SWI: | |
8164 | if (N32_RA5 (insn) == REG_GP && IS_WITHIN_U (N32_IMM15S (insn), 7)) | |
8165 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM15S (insn)); | |
8166 | break; | |
8167 | case N32_OP6_HWGP: | |
8168 | if (!IS_WITHIN_U (N32_IMM17S (insn), 7)) | |
8169 | break; | |
8170 | ||
8171 | if (__GF (insn, 17, 3) == 6) | |
8172 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 0, N32_IMM17S (insn)); | |
8173 | else if (__GF (insn, 17, 3) == 7) | |
8174 | insn16 = N16_TYPE37 (XWI37, N32_RT5 (insn), 1, N32_IMM17S (insn)); | |
8175 | break; | |
8176 | } | |
8177 | ||
8178 | if ((insn16 & 0x8000) == 0) | |
8179 | return 0; | |
8180 | ||
8181 | *pinsn16 = insn16; | |
8182 | return 1; | |
8183 | } | |
8184 | ||
8185 | /* Convert a 16-bit instruction to 32-bit one. | |
8186 | INSN16 it the input and PINSN it the point to output. | |
8187 | Return non-zero on successful. Otherwise 0 is returned. */ | |
8188 | ||
8189 | int | |
8190 | nds32_convert_16_to_32 (bfd *abfd, uint16_t insn16, uint32_t *pinsn) | |
8191 | { | |
8192 | uint32_t insn = 0xffffffff; | |
8193 | unsigned long mach = bfd_get_mach (abfd); | |
8194 | ||
8195 | /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */ | |
8196 | ||
8197 | switch (__GF (insn16, 9, 6)) | |
8198 | { | |
8199 | case 0x4: /* add45 */ | |
1c8f6a4d KLC |
8200 | insn = N32_ALU1 (ADD, N16_RT4 (insn16), N16_RT4 (insn16), |
8201 | N16_RA5 (insn16)); | |
35c08157 KLC |
8202 | goto done; |
8203 | case 0x5: /* sub45 */ | |
1c8f6a4d KLC |
8204 | insn = N32_ALU1 (SUB, N16_RT4 (insn16), N16_RT4 (insn16), |
8205 | N16_RA5 (insn16)); | |
35c08157 KLC |
8206 | goto done; |
8207 | case 0x6: /* addi45 */ | |
1c8f6a4d KLC |
8208 | insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16), |
8209 | N16_IMM5U (insn16)); | |
35c08157 KLC |
8210 | goto done; |
8211 | case 0x7: /* subi45 */ | |
1c8f6a4d KLC |
8212 | insn = N32_TYPE2 (ADDI, N16_RT4 (insn16), N16_RT4 (insn16), |
8213 | -N16_IMM5U (insn16)); | |
35c08157 KLC |
8214 | goto done; |
8215 | case 0x8: /* srai45 */ | |
1c8f6a4d KLC |
8216 | insn = N32_ALU1 (SRAI, N16_RT4 (insn16), N16_RT4 (insn16), |
8217 | N16_IMM5U (insn16)); | |
35c08157 KLC |
8218 | goto done; |
8219 | case 0x9: /* srli45 */ | |
1c8f6a4d KLC |
8220 | insn = N32_ALU1 (SRLI, N16_RT4 (insn16), N16_RT4 (insn16), |
8221 | N16_IMM5U (insn16)); | |
35c08157 | 8222 | goto done; |
35c08157 | 8223 | case 0xa: /* slli333 */ |
1c8f6a4d KLC |
8224 | insn = N32_ALU1 (SLLI, N16_RT3 (insn16), N16_RA3 (insn16), |
8225 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8226 | goto done; |
8227 | case 0xc: /* add333 */ | |
1c8f6a4d KLC |
8228 | insn = N32_ALU1 (ADD, N16_RT3 (insn16), N16_RA3 (insn16), |
8229 | N16_RB3 (insn16)); | |
35c08157 KLC |
8230 | goto done; |
8231 | case 0xd: /* sub333 */ | |
1c8f6a4d KLC |
8232 | insn = N32_ALU1 (SUB, N16_RT3 (insn16), N16_RA3 (insn16), |
8233 | N16_RB3 (insn16)); | |
35c08157 KLC |
8234 | goto done; |
8235 | case 0xe: /* addi333 */ | |
1c8f6a4d KLC |
8236 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16), |
8237 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8238 | goto done; |
8239 | case 0xf: /* subi333 */ | |
1c8f6a4d KLC |
8240 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), N16_RA3 (insn16), |
8241 | -N16_IMM3U (insn16)); | |
35c08157 | 8242 | goto done; |
35c08157 | 8243 | case 0x10: /* lwi333 */ |
1c8f6a4d KLC |
8244 | insn = N32_TYPE2 (LWI, N16_RT3 (insn16), N16_RA3 (insn16), |
8245 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8246 | goto done; |
8247 | case 0x12: /* lhi333 */ | |
1c8f6a4d KLC |
8248 | insn = N32_TYPE2 (LHI, N16_RT3 (insn16), N16_RA3 (insn16), |
8249 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8250 | goto done; |
8251 | case 0x13: /* lbi333 */ | |
1c8f6a4d KLC |
8252 | insn = N32_TYPE2 (LBI, N16_RT3 (insn16), N16_RA3 (insn16), |
8253 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8254 | goto done; |
8255 | case 0x11: /* lwi333.bi */ | |
1c8f6a4d KLC |
8256 | insn = N32_TYPE2 (LWI_BI, N16_RT3 (insn16), N16_RA3 (insn16), |
8257 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8258 | goto done; |
8259 | case 0x14: /* swi333 */ | |
1c8f6a4d KLC |
8260 | insn = N32_TYPE2 (SWI, N16_RT3 (insn16), N16_RA3 (insn16), |
8261 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8262 | goto done; |
8263 | case 0x16: /* shi333 */ | |
1c8f6a4d KLC |
8264 | insn = N32_TYPE2 (SHI, N16_RT3 (insn16), N16_RA3 (insn16), |
8265 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8266 | goto done; |
8267 | case 0x17: /* sbi333 */ | |
1c8f6a4d KLC |
8268 | insn = N32_TYPE2 (SBI, N16_RT3 (insn16), N16_RA3 (insn16), |
8269 | N16_IMM3U (insn16)); | |
35c08157 KLC |
8270 | goto done; |
8271 | case 0x15: /* swi333.bi */ | |
1c8f6a4d KLC |
8272 | insn = N32_TYPE2 (SWI_BI, N16_RT3 (insn16), N16_RA3 (insn16), |
8273 | N16_IMM3U (insn16)); | |
35c08157 | 8274 | goto done; |
35c08157 | 8275 | case 0x18: /* addri36.sp */ |
1c8f6a4d KLC |
8276 | insn = N32_TYPE2 (ADDI, N16_RT3 (insn16), REG_SP, |
8277 | N16_IMM6U (insn16) << 2); | |
35c08157 | 8278 | goto done; |
35c08157 | 8279 | case 0x19: /* lwi45.fe */ |
1c8f6a4d KLC |
8280 | insn = N32_TYPE2 (LWI, N16_RT4 (insn16), REG_R8, |
8281 | (N16_IMM5U (insn16) - 32)); | |
35c08157 KLC |
8282 | goto done; |
8283 | case 0x1a: /* lwi450 */ | |
8284 | insn = N32_TYPE2 (LWI, N16_RT4 (insn16), N16_RA5 (insn16), 0); | |
8285 | goto done; | |
8286 | case 0x1b: /* swi450 */ | |
8287 | insn = N32_TYPE2 (SWI, N16_RT4 (insn16), N16_RA5 (insn16), 0); | |
8288 | goto done; | |
8289 | ||
1c8f6a4d | 8290 | /* These are r15 implied instructions. */ |
35c08157 KLC |
8291 | case 0x30: /* slts45 */ |
8292 | insn = N32_ALU1 (SLTS, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16)); | |
8293 | goto done; | |
8294 | case 0x31: /* slt45 */ | |
8295 | insn = N32_ALU1 (SLT, REG_TA, N16_RT4 (insn16), N16_RA5 (insn16)); | |
8296 | goto done; | |
8297 | case 0x32: /* sltsi45 */ | |
8298 | insn = N32_TYPE2 (SLTSI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16)); | |
8299 | goto done; | |
8300 | case 0x33: /* slti45 */ | |
8301 | insn = N32_TYPE2 (SLTI, REG_TA, N16_RT4 (insn16), N16_IMM5U (insn16)); | |
8302 | goto done; | |
8303 | case 0x34: /* beqzs8, bnezs8 */ | |
4ec521f2 | 8304 | if (insn16 & N32_BIT (8)) |
35c08157 KLC |
8305 | insn = N32_BR2 (BNEZ, REG_TA, N16_IMM8S (insn16)); |
8306 | else | |
8307 | insn = N32_BR2 (BEQZ, REG_TA, N16_IMM8S (insn16)); | |
8308 | goto done; | |
8309 | ||
8310 | case 0x35: /* break16, ex9.it */ | |
8311 | /* Only consider range of v3 break16. */ | |
8312 | insn = N32_TYPE0 (MISC, (N16_IMM5U (insn16) << 5) | N32_MISC_BREAK); | |
8313 | goto done; | |
8314 | ||
8315 | case 0x3c: /* ifcall9 */ | |
fbaf61ad | 8316 | insn = N32_BR2 (SOP0, 0, N16_IMM9U (insn16)); |
35c08157 KLC |
8317 | goto done; |
8318 | case 0x3d: /* movpi45 */ | |
8319 | insn = N32_TYPE1 (MOVI, N16_RT4 (insn16), N16_IMM5U (insn16) + 16); | |
8320 | goto done; | |
8321 | ||
8322 | case 0x3f: /* MISC33 */ | |
1c8f6a4d | 8323 | switch (insn16 & 0x7) |
35c08157 KLC |
8324 | { |
8325 | case 2: /* neg33 */ | |
8326 | insn = N32_TYPE2 (SUBRI, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8327 | break; | |
8328 | case 3: /* not33 */ | |
1c8f6a4d KLC |
8329 | insn = N32_ALU1 (NOR, N16_RT3 (insn16), N16_RA3 (insn16), |
8330 | N16_RA3 (insn16)); | |
35c08157 KLC |
8331 | break; |
8332 | case 4: /* mul33 */ | |
1c8f6a4d KLC |
8333 | insn = N32_ALU2 (MUL, N16_RT3 (insn16), N16_RT3 (insn16), |
8334 | N16_RA3 (insn16)); | |
35c08157 KLC |
8335 | break; |
8336 | case 5: /* xor33 */ | |
1c8f6a4d KLC |
8337 | insn = N32_ALU1 (XOR, N16_RT3 (insn16), N16_RT3 (insn16), |
8338 | N16_RA3 (insn16)); | |
35c08157 KLC |
8339 | break; |
8340 | case 6: /* and33 */ | |
1c8f6a4d KLC |
8341 | insn = N32_ALU1 (AND, N16_RT3 (insn16), N16_RT3 (insn16), |
8342 | N16_RA3 (insn16)); | |
35c08157 KLC |
8343 | break; |
8344 | case 7: /* or33 */ | |
1c8f6a4d KLC |
8345 | insn = N32_ALU1 (OR, N16_RT3 (insn16), N16_RT3 (insn16), |
8346 | N16_RA3 (insn16)); | |
35c08157 KLC |
8347 | break; |
8348 | } | |
8349 | goto done; | |
8350 | ||
1c8f6a4d | 8351 | case 0xb: |
35c08157 KLC |
8352 | switch (insn16 & 0x7) |
8353 | { | |
8354 | case 0: /* zeb33 */ | |
8355 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0xff); | |
8356 | break; | |
8357 | case 1: /* zeh33 */ | |
8358 | insn = N32_ALU1 (ZEH, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8359 | break; | |
8360 | case 2: /* seb33 */ | |
8361 | insn = N32_ALU1 (SEB, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8362 | break; | |
8363 | case 3: /* seh33 */ | |
8364 | insn = N32_ALU1 (SEH, N16_RT3 (insn16), N16_RA3 (insn16), 0); | |
8365 | break; | |
8366 | case 4: /* xlsb33 */ | |
8367 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 1); | |
8368 | break; | |
8369 | case 5: /* x11b33 */ | |
8370 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RA3 (insn16), 0x7ff); | |
8371 | break; | |
8372 | case 6: /* bmski33 */ | |
8373 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16), | |
1c8f6a4d | 8374 | 1 << __GF (insn16, 3, 3)); |
35c08157 KLC |
8375 | break; |
8376 | case 7: /* fexti33 */ | |
8377 | insn = N32_TYPE2 (ANDI, N16_RT3 (insn16), N16_RT3 (insn16), | |
1c8f6a4d | 8378 | (1 << (__GF (insn16, 3, 3) + 1)) - 1); |
35c08157 KLC |
8379 | break; |
8380 | } | |
8381 | goto done; | |
8382 | } | |
8383 | ||
8384 | switch (__GF (insn16, 10, 5)) | |
8385 | { | |
8386 | case 0x0: /* mov55 or ifret16 */ | |
8387 | if (mach >= MACH_V3 && N16_RT5 (insn16) == REG_SP | |
8388 | && N16_RT5 (insn16) == N16_RA5 (insn16)) | |
1c8f6a4d | 8389 | insn = N32_JREG (JR, 0, 0, 0, 3); |
35c08157 | 8390 | else |
1c8f6a4d | 8391 | insn = N32_TYPE2 (ADDI, N16_RT5 (insn16), N16_RA5 (insn16), 0); |
35c08157 KLC |
8392 | goto done; |
8393 | case 0x1: /* movi55 */ | |
8394 | insn = N32_TYPE1 (MOVI, N16_RT5 (insn16), N16_IMM5S (insn16)); | |
8395 | goto done; | |
8396 | case 0x1b: /* addi10s (V2) */ | |
8397 | insn = N32_TYPE2 (ADDI, REG_SP, REG_SP, N16_IMM10S (insn16)); | |
8398 | goto done; | |
8399 | } | |
8400 | ||
8401 | switch (__GF (insn16, 11, 4)) | |
8402 | { | |
8403 | case 0x7: /* lwi37.fp/swi37.fp */ | |
4ec521f2 | 8404 | if (insn16 & N32_BIT (7)) /* swi37.fp */ |
35c08157 KLC |
8405 | insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16)); |
8406 | else /* lwi37.fp */ | |
8407 | insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_FP, N16_IMM7U (insn16)); | |
8408 | goto done; | |
8409 | case 0x8: /* beqz38 */ | |
8410 | insn = N32_BR2 (BEQZ, N16_RT38 (insn16), N16_IMM8S (insn16)); | |
8411 | goto done; | |
8412 | case 0x9: /* bnez38 */ | |
8413 | insn = N32_BR2 (BNEZ, N16_RT38 (insn16), N16_IMM8S (insn16)); | |
8414 | goto done; | |
8415 | case 0xa: /* beqs38/j8, implied r5 */ | |
8416 | if (N16_RT38 (insn16) == 5) | |
8417 | insn = N32_JI (J, N16_IMM8S (insn16)); | |
8418 | else | |
8419 | insn = N32_BR1 (BEQ, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16)); | |
8420 | goto done; | |
fbaf61ad | 8421 | case 0xb: /* bnes38 and others. */ |
35c08157 KLC |
8422 | if (N16_RT38 (insn16) == 5) |
8423 | { | |
8424 | switch (__GF (insn16, 5, 3)) | |
8425 | { | |
8426 | case 0: /* jr5 */ | |
8427 | insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 0); | |
8428 | break; | |
8429 | case 4: /* ret5 */ | |
8430 | insn = N32_JREG (JR, 0, N16_RA5 (insn16), 0, 1); | |
8431 | break; | |
8432 | case 1: /* jral5 */ | |
8433 | insn = N32_JREG (JRAL, REG_LP, N16_RA5 (insn16), 0, 0); | |
8434 | break; | |
8435 | case 2: /* ex9.it imm5 */ | |
8436 | /* ex9.it had no 32-bit variantl. */ | |
8437 | break; | |
8438 | case 5: /* add5.pc */ | |
8439 | /* add5.pc had no 32-bit variantl. */ | |
8440 | break; | |
8441 | } | |
8442 | } | |
8443 | else /* bnes38 */ | |
8444 | insn = N32_BR1 (BNE, N16_RT38 (insn16), REG_R5, N16_IMM8S (insn16)); | |
8445 | goto done; | |
8446 | case 0xe: /* lwi37/swi37 */ | |
8447 | if (insn16 & (1 << 7)) /* swi37.sp */ | |
8448 | insn = N32_TYPE2 (SWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16)); | |
8449 | else /* lwi37.sp */ | |
8450 | insn = N32_TYPE2 (LWI, N16_RT38 (insn16), REG_SP, N16_IMM7U (insn16)); | |
8451 | goto done; | |
8452 | } | |
8453 | ||
dc1e8a47 | 8454 | done: |
35c08157 KLC |
8455 | if (insn & 0x80000000) |
8456 | return 0; | |
8457 | ||
8458 | if (pinsn) | |
8459 | *pinsn = insn; | |
8460 | return 1; | |
8461 | } | |
8462 | \f | |
fbaf61ad | 8463 | |
35c08157 KLC |
8464 | static bfd_boolean |
8465 | is_sda_access_insn (unsigned long insn) | |
8466 | { | |
8467 | switch (N32_OP6 (insn)) | |
8468 | { | |
8469 | case N32_OP6_LWI: | |
8470 | case N32_OP6_LHI: | |
8471 | case N32_OP6_LHSI: | |
8472 | case N32_OP6_LBI: | |
8473 | case N32_OP6_LBSI: | |
8474 | case N32_OP6_SWI: | |
8475 | case N32_OP6_SHI: | |
8476 | case N32_OP6_SBI: | |
8477 | case N32_OP6_LWC: | |
8478 | case N32_OP6_LDC: | |
8479 | case N32_OP6_SWC: | |
8480 | case N32_OP6_SDC: | |
8481 | return TRUE; | |
8482 | default: | |
8483 | ; | |
8484 | } | |
8485 | return FALSE; | |
8486 | } | |
8487 | ||
8488 | static unsigned long | |
8489 | turn_insn_to_sda_access (uint32_t insn, bfd_signed_vma type, uint32_t *pinsn) | |
8490 | { | |
8491 | uint32_t oinsn = 0; | |
8492 | ||
8493 | switch (type) | |
8494 | { | |
8495 | case R_NDS32_GOT_LO12: | |
8496 | case R_NDS32_GOTOFF_LO12: | |
8497 | case R_NDS32_PLTREL_LO12: | |
8498 | case R_NDS32_PLT_GOTREL_LO12: | |
8499 | case R_NDS32_LO12S0_RELA: | |
8500 | switch (N32_OP6 (insn)) | |
8501 | { | |
8502 | case N32_OP6_LBI: | |
8503 | /* lbi.gp */ | |
8504 | oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), 0); | |
8505 | break; | |
8506 | case N32_OP6_LBSI: | |
8507 | /* lbsi.gp */ | |
4ec521f2 | 8508 | oinsn = N32_TYPE1 (LBGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8509 | break; |
8510 | case N32_OP6_SBI: | |
8511 | /* sbi.gp */ | |
8512 | oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), 0); | |
8513 | break; | |
8514 | case N32_OP6_ORI: | |
8515 | /* addi.gp */ | |
4ec521f2 | 8516 | oinsn = N32_TYPE1 (SBGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8517 | break; |
8518 | } | |
8519 | break; | |
8520 | ||
8521 | case R_NDS32_LO12S1_RELA: | |
8522 | switch (N32_OP6 (insn)) | |
8523 | { | |
8524 | case N32_OP6_LHI: | |
8525 | /* lhi.gp */ | |
8526 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), 0); | |
8527 | break; | |
8528 | case N32_OP6_LHSI: | |
8529 | /* lhsi.gp */ | |
4ec521f2 | 8530 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (18)); |
35c08157 KLC |
8531 | break; |
8532 | case N32_OP6_SHI: | |
8533 | /* shi.gp */ | |
4ec521f2 | 8534 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), N32_BIT (19)); |
35c08157 KLC |
8535 | break; |
8536 | } | |
8537 | break; | |
8538 | ||
8539 | case R_NDS32_LO12S2_RELA: | |
8540 | switch (N32_OP6 (insn)) | |
8541 | { | |
8542 | case N32_OP6_LWI: | |
8543 | /* lwi.gp */ | |
8544 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (6, 17, 3)); | |
8545 | break; | |
8546 | case N32_OP6_SWI: | |
8547 | /* swi.gp */ | |
8548 | oinsn = N32_TYPE1 (HWGP, N32_RT5 (insn), __MF (7, 17, 3)); | |
8549 | break; | |
8550 | } | |
8551 | break; | |
8552 | ||
8553 | case R_NDS32_LO12S2_DP_RELA: | |
8554 | case R_NDS32_LO12S2_SP_RELA: | |
8555 | oinsn = (insn & 0x7ff07000) | (REG_GP << 15); | |
8556 | break; | |
8557 | } | |
8558 | ||
8559 | if (oinsn) | |
8560 | *pinsn = oinsn; | |
8561 | ||
8562 | return oinsn != 0; | |
8563 | } | |
8564 | ||
8565 | /* Linker hasn't found the correct merge section for non-section symbol | |
8566 | in relax time, this work is left to the function elf_link_input_bfd(). | |
8567 | So for non-section symbol, _bfd_merged_section_offset is also needed | |
8568 | to find the correct symbol address. */ | |
8569 | ||
8570 | static bfd_vma | |
8571 | nds32_elf_rela_local_sym (bfd *abfd, Elf_Internal_Sym *sym, | |
8572 | asection **psec, Elf_Internal_Rela *rel) | |
8573 | { | |
8574 | asection *sec = *psec; | |
8575 | bfd_vma relocation; | |
8576 | ||
8577 | relocation = (sec->output_section->vma | |
8578 | + sec->output_offset + sym->st_value); | |
8579 | if ((sec->flags & SEC_MERGE) && sec->sec_info_type == SEC_INFO_TYPE_MERGE) | |
8580 | { | |
8581 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
8582 | rel->r_addend = | |
8583 | _bfd_merged_section_offset (abfd, psec, | |
8584 | elf_section_data (sec)->sec_info, | |
8585 | sym->st_value + rel->r_addend); | |
8586 | else | |
8587 | rel->r_addend = | |
8588 | _bfd_merged_section_offset (abfd, psec, | |
8589 | elf_section_data (sec)->sec_info, | |
8590 | sym->st_value) + rel->r_addend; | |
8591 | ||
8592 | if (sec != *psec) | |
8593 | { | |
8594 | /* If we have changed the section, and our original section is | |
8595 | marked with SEC_EXCLUDE, it means that the original | |
8596 | SEC_MERGE section has been completely subsumed in some | |
8597 | other SEC_MERGE section. In this case, we need to leave | |
8598 | some info around for --emit-relocs. */ | |
8599 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
8600 | sec->kept_section = *psec; | |
8601 | sec = *psec; | |
8602 | } | |
8603 | rel->r_addend -= relocation; | |
8604 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
8605 | } | |
8606 | return relocation; | |
8607 | } | |
8608 | ||
8609 | static bfd_vma | |
8610 | calculate_memory_address (bfd *abfd, Elf_Internal_Rela *irel, | |
8611 | Elf_Internal_Sym *isymbuf, | |
8612 | Elf_Internal_Shdr *symtab_hdr) | |
8613 | { | |
8614 | bfd_signed_vma foff; | |
8615 | bfd_vma symval, addend; | |
8616 | Elf_Internal_Rela irel_fn; | |
8617 | Elf_Internal_Sym *isym; | |
8618 | asection *sym_sec; | |
8619 | ||
8620 | /* Get the value of the symbol referred to by the reloc. */ | |
8621 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
8622 | { | |
8623 | /* A local symbol. */ | |
8624 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
8625 | ||
8626 | if (isym->st_shndx == SHN_UNDEF) | |
8627 | sym_sec = bfd_und_section_ptr; | |
8628 | else if (isym->st_shndx == SHN_ABS) | |
8629 | sym_sec = bfd_abs_section_ptr; | |
8630 | else if (isym->st_shndx == SHN_COMMON) | |
8631 | sym_sec = bfd_com_section_ptr; | |
8632 | else | |
8633 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
8634 | memcpy (&irel_fn, irel, sizeof (Elf_Internal_Rela)); | |
8635 | symval = nds32_elf_rela_local_sym (abfd, isym, &sym_sec, &irel_fn); | |
8636 | addend = irel_fn.r_addend; | |
8637 | } | |
8638 | else | |
8639 | { | |
8640 | unsigned long indx; | |
8641 | struct elf_link_hash_entry *h; | |
8642 | ||
8643 | /* An external symbol. */ | |
8644 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
8645 | h = elf_sym_hashes (abfd)[indx]; | |
8646 | BFD_ASSERT (h != NULL); | |
8647 | ||
8648 | while (h->root.type == bfd_link_hash_indirect | |
8649 | || h->root.type == bfd_link_hash_warning) | |
8650 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
8651 | ||
8652 | if (h->root.type != bfd_link_hash_defined | |
8653 | && h->root.type != bfd_link_hash_defweak) | |
8654 | /* This appears to be a reference to an undefined | |
8655 | symbol. Just ignore it--it will be caught by the | |
8656 | regular reloc processing. */ | |
8657 | return 0; | |
8658 | ||
8659 | if (h->root.u.def.section->flags & SEC_MERGE) | |
8660 | { | |
8661 | sym_sec = h->root.u.def.section; | |
8662 | symval = _bfd_merged_section_offset (abfd, &sym_sec, elf_section_data | |
8663 | (sym_sec)->sec_info, h->root.u.def.value); | |
8664 | symval = symval + sym_sec->output_section->vma | |
8665 | + sym_sec->output_offset; | |
8666 | } | |
8667 | else | |
8668 | symval = (h->root.u.def.value | |
8669 | + h->root.u.def.section->output_section->vma | |
8670 | + h->root.u.def.section->output_offset); | |
8671 | addend = irel->r_addend; | |
8672 | } | |
8673 | ||
8674 | foff = symval + addend; | |
8675 | ||
8676 | return foff; | |
8677 | } | |
8678 | ||
35c08157 KLC |
8679 | static int |
8680 | is_16bit_NOP (bfd *abfd ATTRIBUTE_UNUSED, | |
8681 | asection *sec, Elf_Internal_Rela *rel) | |
8682 | { | |
8683 | bfd_byte *contents; | |
8684 | unsigned short insn16; | |
8685 | ||
8686 | if (!(rel->r_addend & R_NDS32_INSN16_CONVERT_FLAG)) | |
8687 | return FALSE; | |
8688 | contents = elf_section_data (sec)->this_hdr.contents; | |
8689 | insn16 = bfd_getb16 (contents + rel->r_offset); | |
8690 | if (insn16 == NDS32_NOP16) | |
8691 | return TRUE; | |
8692 | return FALSE; | |
8693 | } | |
8694 | ||
8695 | /* It checks whether the instruction could be converted to | |
8696 | 16-bit form and returns the converted one. | |
8697 | ||
8698 | `internal_relocs' is supposed to be sorted. */ | |
8699 | ||
8700 | static int | |
8701 | is_convert_32_to_16 (bfd *abfd, asection *sec, | |
8702 | Elf_Internal_Rela *reloc, | |
8703 | Elf_Internal_Rela *internal_relocs, | |
8704 | Elf_Internal_Rela *irelend, | |
8705 | uint16_t *insn16) | |
8706 | { | |
8707 | #define NORMAL_32_TO_16 (1 << 0) | |
8708 | #define SPECIAL_32_TO_16 (1 << 1) | |
8709 | bfd_byte *contents = NULL; | |
8710 | bfd_signed_vma off; | |
8711 | bfd_vma mem_addr; | |
8712 | uint32_t insn = 0; | |
8713 | Elf_Internal_Rela *pc_rel; | |
35c08157 KLC |
8714 | Elf_Internal_Shdr *symtab_hdr; |
8715 | Elf_Internal_Sym *isymbuf = NULL; | |
8716 | int convert_type; | |
8717 | bfd_vma offset; | |
8718 | ||
8719 | if (reloc->r_offset + 4 > sec->size) | |
8720 | return FALSE; | |
8721 | ||
8722 | offset = reloc->r_offset; | |
8723 | ||
0c4bd9d9 | 8724 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE)) |
35c08157 KLC |
8725 | return FALSE; |
8726 | insn = bfd_getb32 (contents + offset); | |
8727 | ||
8728 | if (nds32_convert_32_to_16 (abfd, insn, insn16, NULL)) | |
8729 | convert_type = NORMAL_32_TO_16; | |
8730 | else if (special_convert_32_to_16 (insn, insn16, reloc)) | |
8731 | convert_type = SPECIAL_32_TO_16; | |
8732 | else | |
8733 | return FALSE; | |
8734 | ||
8735 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8736 | if (!nds32_get_local_syms (abfd, sec, &isymbuf)) | |
8737 | return FALSE; | |
8738 | ||
8739 | /* Find the first relocation of the same relocation-type, | |
8740 | so we iteratie them forward. */ | |
8741 | pc_rel = reloc; | |
1c8f6a4d | 8742 | while ((pc_rel - 1) >= internal_relocs && pc_rel[-1].r_offset == offset) |
35c08157 KLC |
8743 | pc_rel--; |
8744 | ||
8745 | for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++) | |
8746 | { | |
8747 | if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA | |
8748 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA | |
8749 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA | |
8750 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL) | |
8751 | { | |
fbaf61ad | 8752 | off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr); |
1c8f6a4d KLC |
8753 | if (off >= ACCURATE_8BIT_S1 || off < -ACCURATE_8BIT_S1 |
8754 | || off == 0) | |
35c08157 KLC |
8755 | return FALSE; |
8756 | break; | |
8757 | } | |
8758 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA) | |
8759 | { | |
8760 | /* movi => movi55 */ | |
1c8f6a4d KLC |
8761 | mem_addr = calculate_memory_address (abfd, pc_rel, isymbuf, |
8762 | symtab_hdr); | |
8763 | /* mem_addr is unsigned, but the value should | |
8764 | be between [-16, 15]. */ | |
35c08157 KLC |
8765 | if ((mem_addr + 0x10) >> 5) |
8766 | return FALSE; | |
8767 | break; | |
8768 | } | |
1c8f6a4d KLC |
8769 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_20) |
8770 | || (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_TLS_LE_LO12)) | |
8771 | { | |
8772 | /* It never happen movi to movi55 for R_NDS32_TLS_LE_20, | |
8773 | because it can be relaxed to addi for TLS_LE_ADD. */ | |
8774 | return FALSE; | |
8775 | } | |
35c08157 KLC |
8776 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA |
8777 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA) | |
8778 | && (reloc->r_addend & R_NDS32_INSN16_FP7U2_FLAG) | |
8779 | && convert_type == SPECIAL_32_TO_16) | |
8780 | { | |
8781 | /* fp-as-gp | |
8782 | We've selected a best fp-base for this access, so we can | |
8783 | always resolve it anyway. Do nothing. */ | |
8784 | break; | |
8785 | } | |
8786 | else if ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_NONE | |
8787 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_RELA_GNU_VTINHERIT)) | |
8788 | || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_RELA_GNU_VTENTRY) | |
8789 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_INSN16)) | |
8790 | || ((ELF32_R_TYPE (pc_rel->r_info) > R_NDS32_LOADSTORE) | |
8791 | && (ELF32_R_TYPE (pc_rel->r_info) < R_NDS32_DWARF2_OP1_RELA))) | |
8792 | { | |
1c8f6a4d KLC |
8793 | /* Prevent unresolved addi instruction translate |
8794 | to addi45 or addi333. */ | |
35c08157 KLC |
8795 | return FALSE; |
8796 | } | |
1c8f6a4d KLC |
8797 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA)) |
8798 | { | |
fbaf61ad | 8799 | off = calculate_offset (abfd, sec, pc_rel, isymbuf, symtab_hdr); |
1c8f6a4d KLC |
8800 | if (off >= ACCURATE_U9BIT_S1 || off <= 0) |
8801 | return FALSE; | |
8802 | break; | |
8803 | } | |
35c08157 KLC |
8804 | } |
8805 | ||
8806 | return TRUE; | |
8807 | } | |
8808 | ||
8809 | static void | |
8810 | nds32_elf_write_16 (bfd *abfd ATTRIBUTE_UNUSED, bfd_byte *contents, | |
8811 | Elf_Internal_Rela *reloc, | |
8812 | Elf_Internal_Rela *internal_relocs, | |
8813 | Elf_Internal_Rela *irelend, | |
8814 | unsigned short insn16) | |
8815 | { | |
8816 | Elf_Internal_Rela *pc_rel; | |
8817 | bfd_vma offset; | |
8818 | ||
8819 | offset = reloc->r_offset; | |
8820 | bfd_putb16 (insn16, contents + offset); | |
8821 | /* Find the first relocation of the same relocation-type, | |
8822 | so we iteratie them forward. */ | |
8823 | pc_rel = reloc; | |
8824 | while ((pc_rel - 1) > internal_relocs && pc_rel[-1].r_offset == offset) | |
8825 | pc_rel--; | |
8826 | ||
8827 | for (; pc_rel < irelend && pc_rel->r_offset == offset; pc_rel++) | |
8828 | { | |
8829 | if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_15_PCREL_RELA | |
8830 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17_PCREL_RELA | |
8831 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PCREL_RELA) | |
8832 | { | |
8833 | pc_rel->r_info = | |
8834 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PCREL_RELA); | |
8835 | } | |
8836 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_25_PLTREL) | |
8837 | pc_rel->r_info = | |
8838 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_9_PLTREL); | |
8839 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_20_RELA) | |
8840 | pc_rel->r_info = | |
8841 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_5_RELA); | |
8842 | else if (ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA15S2_RELA | |
8843 | || ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_SDA17S2_RELA) | |
8844 | pc_rel->r_info = | |
8845 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_SDA_FP7U2_RELA); | |
1c8f6a4d KLC |
8846 | else if ((ELF32_R_TYPE (pc_rel->r_info) == R_NDS32_17IFC_PCREL_RELA)) |
8847 | pc_rel->r_info = | |
8848 | ELF32_R_INFO (ELF32_R_SYM (pc_rel->r_info), R_NDS32_10IFCU_PCREL_RELA); | |
35c08157 KLC |
8849 | } |
8850 | } | |
8851 | ||
8852 | /* Find a relocation of type specified by `reloc_type' | |
8853 | of the same r_offset with reloc. | |
8854 | If not found, return irelend. | |
8855 | ||
8856 | Assuming relocations are sorted by r_offset, | |
8857 | we find the relocation from `reloc' backward untill relocs, | |
8858 | or find it from `reloc' forward untill irelend. */ | |
8859 | ||
8860 | static Elf_Internal_Rela * | |
8861 | find_relocs_at_address (Elf_Internal_Rela *reloc, | |
8862 | Elf_Internal_Rela *relocs, | |
8863 | Elf_Internal_Rela *irelend, | |
8864 | enum elf_nds32_reloc_type reloc_type) | |
8865 | { | |
8866 | Elf_Internal_Rela *rel_t; | |
8867 | ||
8868 | /* Find backward. */ | |
8869 | for (rel_t = reloc; | |
8870 | rel_t >= relocs && rel_t->r_offset == reloc->r_offset; | |
8871 | rel_t--) | |
8872 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
8873 | return rel_t; | |
8874 | ||
1c8f6a4d | 8875 | /* We didn't find it backward. Try find it forward. */ |
35c08157 KLC |
8876 | for (rel_t = reloc; |
8877 | rel_t < irelend && rel_t->r_offset == reloc->r_offset; | |
8878 | rel_t++) | |
8879 | if (ELF32_R_TYPE (rel_t->r_info) == reloc_type) | |
8880 | return rel_t; | |
8881 | ||
8882 | return irelend; | |
8883 | } | |
8884 | ||
8885 | /* Find a relocation of specified type and offset. | |
8886 | `reloc' is just a refence point to find a relocation at specified offset. | |
8887 | If not found, return irelend. | |
8888 | ||
8889 | Assuming relocations are sorted by r_offset, | |
8890 | we find the relocation from `reloc' backward untill relocs, | |
8891 | or find it from `reloc' forward untill irelend. */ | |
8892 | ||
8893 | static Elf_Internal_Rela * | |
8894 | find_relocs_at_address_addr (Elf_Internal_Rela *reloc, | |
8895 | Elf_Internal_Rela *relocs, | |
8896 | Elf_Internal_Rela *irelend, | |
6cae483a | 8897 | enum elf_nds32_reloc_type reloc_type, |
35c08157 KLC |
8898 | bfd_vma offset_p) |
8899 | { | |
8900 | Elf_Internal_Rela *rel_t = NULL; | |
8901 | ||
8902 | /* First, we try to find a relocation of offset `offset_p', | |
8903 | and then we use find_relocs_at_address to find specific type. */ | |
8904 | ||
8905 | if (reloc->r_offset > offset_p) | |
8906 | { | |
8907 | /* Find backward. */ | |
8908 | for (rel_t = reloc; | |
8909 | rel_t >= relocs && rel_t->r_offset > offset_p; rel_t--) | |
8910 | /* Do nothing. */; | |
8911 | } | |
8912 | else if (reloc->r_offset < offset_p) | |
8913 | { | |
8914 | /* Find forward. */ | |
8915 | for (rel_t = reloc; | |
8916 | rel_t < irelend && rel_t->r_offset < offset_p; rel_t++) | |
8917 | /* Do nothing. */; | |
8918 | } | |
8919 | else | |
8920 | rel_t = reloc; | |
8921 | ||
8922 | /* Not found? */ | |
8923 | if (rel_t < relocs || rel_t == irelend || rel_t->r_offset != offset_p) | |
8924 | return irelend; | |
8925 | ||
8926 | return find_relocs_at_address (rel_t, relocs, irelend, reloc_type); | |
8927 | } | |
8928 | ||
fbaf61ad NC |
8929 | typedef struct nds32_elf_blank nds32_elf_blank_t; |
8930 | struct nds32_elf_blank | |
35c08157 | 8931 | { |
fbaf61ad NC |
8932 | /* Where the blank begins. */ |
8933 | bfd_vma offset; | |
8934 | /* The size of the blank. */ | |
8935 | bfd_vma size; | |
8936 | /* The accumulative size before this blank. */ | |
8937 | bfd_vma total_size; | |
8938 | nds32_elf_blank_t *next; | |
8939 | nds32_elf_blank_t *prev; | |
8940 | }; | |
35c08157 KLC |
8941 | |
8942 | static nds32_elf_blank_t *blank_free_list = NULL; | |
8943 | ||
8944 | static nds32_elf_blank_t * | |
8945 | create_nds32_elf_blank (bfd_vma offset_p, bfd_vma size_p) | |
8946 | { | |
8947 | nds32_elf_blank_t *blank_t; | |
8948 | ||
8949 | if (blank_free_list) | |
8950 | { | |
8951 | blank_t = blank_free_list; | |
8952 | blank_free_list = blank_free_list->next; | |
8953 | } | |
8954 | else | |
8955 | blank_t = bfd_malloc (sizeof (nds32_elf_blank_t)); | |
8956 | ||
8957 | if (blank_t == NULL) | |
8958 | return NULL; | |
8959 | ||
8960 | blank_t->offset = offset_p; | |
8961 | blank_t->size = size_p; | |
8962 | blank_t->total_size = 0; | |
8963 | blank_t->next = NULL; | |
8964 | blank_t->prev = NULL; | |
8965 | ||
8966 | return blank_t; | |
8967 | } | |
8968 | ||
8969 | static void | |
8970 | remove_nds32_elf_blank (nds32_elf_blank_t *blank_p) | |
8971 | { | |
8972 | if (blank_free_list) | |
8973 | { | |
8974 | blank_free_list->prev = blank_p; | |
8975 | blank_p->next = blank_free_list; | |
8976 | } | |
8977 | else | |
8978 | blank_p->next = NULL; | |
8979 | ||
8980 | blank_p->prev = NULL; | |
8981 | blank_free_list = blank_p; | |
8982 | } | |
8983 | ||
8984 | static void | |
8985 | clean_nds32_elf_blank (void) | |
8986 | { | |
8987 | nds32_elf_blank_t *blank_t; | |
8988 | ||
8989 | while (blank_free_list) | |
8990 | { | |
8991 | blank_t = blank_free_list; | |
8992 | blank_free_list = blank_free_list->next; | |
8993 | free (blank_t); | |
8994 | } | |
8995 | } | |
8996 | ||
8997 | static nds32_elf_blank_t * | |
8998 | search_nds32_elf_blank (nds32_elf_blank_t *blank_p, bfd_vma addr) | |
8999 | { | |
9000 | nds32_elf_blank_t *blank_t; | |
9001 | ||
9002 | if (!blank_p) | |
9003 | return NULL; | |
9004 | blank_t = blank_p; | |
9005 | ||
9006 | while (blank_t && addr < blank_t->offset) | |
9007 | blank_t = blank_t->prev; | |
9008 | while (blank_t && blank_t->next && addr >= blank_t->next->offset) | |
9009 | blank_t = blank_t->next; | |
9010 | ||
9011 | return blank_t; | |
9012 | } | |
9013 | ||
9014 | static bfd_vma | |
9015 | get_nds32_elf_blank_total (nds32_elf_blank_t **blank_p, bfd_vma addr, | |
9016 | int overwrite) | |
9017 | { | |
9018 | nds32_elf_blank_t *blank_t; | |
9019 | ||
9020 | blank_t = search_nds32_elf_blank (*blank_p, addr); | |
9021 | if (!blank_t) | |
9022 | return 0; | |
9023 | ||
9024 | if (overwrite) | |
9025 | *blank_p = blank_t; | |
9026 | ||
9027 | if (addr < blank_t->offset + blank_t->size) | |
9028 | return blank_t->total_size + (addr - blank_t->offset); | |
9029 | else | |
9030 | return blank_t->total_size + blank_t->size; | |
9031 | } | |
9032 | ||
9033 | static bfd_boolean | |
9034 | insert_nds32_elf_blank (nds32_elf_blank_t **blank_p, bfd_vma addr, bfd_vma len) | |
9035 | { | |
9036 | nds32_elf_blank_t *blank_t, *blank_t2; | |
9037 | ||
9038 | if (!*blank_p) | |
9039 | { | |
9040 | *blank_p = create_nds32_elf_blank (addr, len); | |
9041 | return *blank_p ? TRUE : FALSE; | |
9042 | } | |
9043 | ||
9044 | blank_t = search_nds32_elf_blank (*blank_p, addr); | |
9045 | ||
9046 | if (blank_t == NULL) | |
9047 | { | |
9048 | blank_t = create_nds32_elf_blank (addr, len); | |
9049 | if (!blank_t) | |
9050 | return FALSE; | |
9051 | while ((*blank_p)->prev != NULL) | |
9052 | *blank_p = (*blank_p)->prev; | |
9053 | blank_t->next = *blank_p; | |
9054 | (*blank_p)->prev = blank_t; | |
9055 | (*blank_p) = blank_t; | |
9056 | return TRUE; | |
9057 | } | |
9058 | ||
9059 | if (addr < blank_t->offset + blank_t->size) | |
9060 | { | |
fbaf61ad NC |
9061 | /* Extend the origin blank. */ |
9062 | if (addr + len > blank_t->offset + blank_t->size) | |
9063 | blank_t->size = addr + len - blank_t->offset; | |
35c08157 KLC |
9064 | } |
9065 | else | |
9066 | { | |
9067 | blank_t2 = create_nds32_elf_blank (addr, len); | |
9068 | if (!blank_t2) | |
9069 | return FALSE; | |
9070 | if (blank_t->next) | |
9071 | { | |
9072 | blank_t->next->prev = blank_t2; | |
9073 | blank_t2->next = blank_t->next; | |
9074 | } | |
9075 | blank_t2->prev = blank_t; | |
9076 | blank_t->next = blank_t2; | |
9077 | *blank_p = blank_t2; | |
9078 | } | |
9079 | ||
9080 | return TRUE; | |
9081 | } | |
9082 | ||
9083 | static bfd_boolean | |
9084 | insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t **blank_p, bfd_vma addr, | |
9085 | bfd_vma len) | |
9086 | { | |
9087 | nds32_elf_blank_t *blank_t; | |
9088 | ||
9089 | if (!insert_nds32_elf_blank (blank_p, addr, len)) | |
9090 | return FALSE; | |
9091 | ||
9092 | blank_t = *blank_p; | |
9093 | ||
9094 | if (!blank_t->prev) | |
9095 | { | |
9096 | blank_t->total_size = 0; | |
9097 | blank_t = blank_t->next; | |
9098 | } | |
9099 | ||
9100 | while (blank_t) | |
9101 | { | |
9102 | blank_t->total_size = blank_t->prev->total_size + blank_t->prev->size; | |
9103 | blank_t = blank_t->next; | |
9104 | } | |
9105 | ||
9106 | return TRUE; | |
9107 | } | |
9108 | ||
9109 | static void | |
9110 | calc_nds32_blank_total (nds32_elf_blank_t *blank_p) | |
9111 | { | |
9112 | nds32_elf_blank_t *blank_t; | |
9113 | bfd_vma total_size = 0; | |
9114 | ||
9115 | if (!blank_p) | |
9116 | return; | |
9117 | ||
9118 | blank_t = blank_p; | |
9119 | while (blank_t->prev) | |
9120 | blank_t = blank_t->prev; | |
9121 | while (blank_t) | |
9122 | { | |
9123 | blank_t->total_size = total_size; | |
9124 | total_size += blank_t->size; | |
9125 | blank_t = blank_t->next; | |
9126 | } | |
9127 | } | |
9128 | ||
9129 | static bfd_boolean | |
9130 | nds32_elf_relax_delete_blanks (bfd *abfd, asection *sec, | |
9131 | nds32_elf_blank_t *blank_p) | |
9132 | { | |
9133 | Elf_Internal_Shdr *symtab_hdr; /* Symbol table header of this bfd. */ | |
1c8f6a4d | 9134 | Elf_Internal_Sym *isym = NULL; /* Symbol table of this bfd. */ |
35c08157 KLC |
9135 | Elf_Internal_Sym *isymend; /* Symbol entry iterator. */ |
9136 | unsigned int sec_shndx; /* The section the be relaxed. */ | |
9137 | bfd_byte *contents; /* Contents data of iterating section. */ | |
9138 | Elf_Internal_Rela *internal_relocs; | |
9139 | Elf_Internal_Rela *irel; | |
9140 | Elf_Internal_Rela *irelend; | |
9141 | struct elf_link_hash_entry **sym_hashes; | |
9142 | struct elf_link_hash_entry **end_hashes; | |
9143 | unsigned int symcount; | |
9144 | asection *sect; | |
9145 | nds32_elf_blank_t *blank_t; | |
9146 | nds32_elf_blank_t *blank_t2; | |
9147 | nds32_elf_blank_t *blank_head; | |
9148 | ||
9149 | blank_head = blank_t = blank_p; | |
9150 | while (blank_head->prev != NULL) | |
9151 | blank_head = blank_head->prev; | |
9152 | while (blank_t->next != NULL) | |
9153 | blank_t = blank_t->next; | |
9154 | ||
9155 | if (blank_t->offset + blank_t->size <= sec->size) | |
9156 | { | |
9157 | blank_t->next = create_nds32_elf_blank (sec->size + 4, 0); | |
9158 | blank_t->next->prev = blank_t; | |
9159 | } | |
9160 | if (blank_head->offset > 0) | |
9161 | { | |
9162 | blank_head->prev = create_nds32_elf_blank (0, 0); | |
9163 | blank_head->prev->next = blank_head; | |
9164 | blank_head = blank_head->prev; | |
9165 | } | |
9166 | ||
9167 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
9168 | ||
9169 | /* The deletion must stop at the next ALIGN reloc for an alignment | |
9170 | power larger than the number of bytes we are deleting. */ | |
9171 | ||
9172 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
9173 | if (!nds32_get_local_syms (abfd, sec, &isym)) | |
9174 | return FALSE; | |
9175 | ||
9176 | if (isym == NULL) | |
9177 | { | |
9178 | isym = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
9179 | symtab_hdr->sh_info, 0, NULL, NULL, NULL); | |
9180 | symtab_hdr->contents = (bfd_byte *) isym; | |
9181 | } | |
9182 | ||
9183 | if (isym == NULL || symtab_hdr->sh_info == 0) | |
9184 | return FALSE; | |
9185 | ||
9186 | blank_t = blank_head; | |
9187 | calc_nds32_blank_total (blank_head); | |
9188 | ||
9189 | for (sect = abfd->sections; sect != NULL; sect = sect->next) | |
9190 | { | |
9191 | /* Adjust all the relocs. */ | |
9192 | ||
9193 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
9194 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sect, NULL, NULL, | |
9195 | TRUE /* keep_memory */); | |
9196 | irelend = internal_relocs + sect->reloc_count; | |
9197 | ||
9198 | blank_t = blank_head; | |
9199 | blank_t2 = blank_head; | |
9200 | ||
9201 | if (!(sect->flags & SEC_RELOC)) | |
9202 | continue; | |
9203 | ||
0c4bd9d9 | 9204 | nds32_get_section_contents (abfd, sect, &contents, TRUE); |
35c08157 KLC |
9205 | |
9206 | for (irel = internal_relocs; irel < irelend; irel++) | |
9207 | { | |
9208 | bfd_vma raddr; | |
9209 | ||
9210 | if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_DIFF8 | |
9211 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_DIFF32 | |
9212 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx) | |
9213 | { | |
9214 | unsigned long val = 0; | |
1c8f6a4d KLC |
9215 | unsigned long mask; |
9216 | long before, between; | |
6cae483a | 9217 | long offset = 0; |
35c08157 KLC |
9218 | |
9219 | switch (ELF32_R_TYPE (irel->r_info)) | |
9220 | { | |
9221 | case R_NDS32_DIFF8: | |
1c8f6a4d | 9222 | offset = bfd_get_8 (abfd, contents + irel->r_offset); |
35c08157 KLC |
9223 | break; |
9224 | case R_NDS32_DIFF16: | |
1c8f6a4d | 9225 | offset = bfd_get_16 (abfd, contents + irel->r_offset); |
35c08157 KLC |
9226 | break; |
9227 | case R_NDS32_DIFF32: | |
9228 | val = bfd_get_32 (abfd, contents + irel->r_offset); | |
1c8f6a4d KLC |
9229 | /* Get the signed bit and mask for the high part. The |
9230 | gcc will alarm when right shift 32-bit since the | |
9231 | type size of long may be 32-bit. */ | |
9232 | mask = 0 - (val >> 31); | |
9233 | if (mask) | |
9234 | offset = (val | (mask - 0xffffffff)); | |
9235 | else | |
9236 | offset = val; | |
35c08157 KLC |
9237 | break; |
9238 | default: | |
9239 | BFD_ASSERT (0); | |
9240 | } | |
9241 | ||
9242 | /* DIFF value | |
9243 | 0 |encoded in location| | |
9244 | |------------|-------------------|--------- | |
9245 | sym+off(addend) | |
9246 | -- before ---| ***************** | |
9247 | --------------------- between ---| | |
9248 | ||
1c8f6a4d KLC |
9249 | We only care how much data are relax between DIFF, |
9250 | marked as ***. */ | |
35c08157 KLC |
9251 | |
9252 | before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0); | |
1c8f6a4d KLC |
9253 | between = get_nds32_elf_blank_total (&blank_t, |
9254 | irel->r_addend + offset, 0); | |
35c08157 KLC |
9255 | if (between == before) |
9256 | goto done_adjust_diff; | |
9257 | ||
9258 | switch (ELF32_R_TYPE (irel->r_info)) | |
9259 | { | |
9260 | case R_NDS32_DIFF8: | |
1c8f6a4d KLC |
9261 | bfd_put_8 (abfd, offset - (between - before), |
9262 | contents + irel->r_offset); | |
35c08157 KLC |
9263 | break; |
9264 | case R_NDS32_DIFF16: | |
1c8f6a4d KLC |
9265 | bfd_put_16 (abfd, offset - (between - before), |
9266 | contents + irel->r_offset); | |
35c08157 KLC |
9267 | break; |
9268 | case R_NDS32_DIFF32: | |
1c8f6a4d KLC |
9269 | bfd_put_32 (abfd, offset - (between - before), |
9270 | contents + irel->r_offset); | |
35c08157 KLC |
9271 | break; |
9272 | } | |
9273 | } | |
9274 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_DIFF_ULEB128 | |
9275 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx) | |
9276 | { | |
9277 | bfd_vma val = 0; | |
9278 | unsigned int len = 0; | |
9279 | unsigned long before, between; | |
9280 | bfd_byte *endp, *p; | |
9281 | ||
4265548c PA |
9282 | val = _bfd_read_unsigned_leb128 (abfd, contents + irel->r_offset, |
9283 | &len); | |
35c08157 KLC |
9284 | |
9285 | before = get_nds32_elf_blank_total (&blank_t, irel->r_addend, 0); | |
1c8f6a4d KLC |
9286 | between = get_nds32_elf_blank_total (&blank_t, |
9287 | irel->r_addend + val, 0); | |
35c08157 KLC |
9288 | if (between == before) |
9289 | goto done_adjust_diff; | |
9290 | ||
9291 | p = contents + irel->r_offset; | |
9292 | endp = p + len -1; | |
9293 | memset (p, 0x80, len); | |
9294 | *(endp) = 0; | |
9295 | p = write_uleb128 (p, val - (between - before)) - 1; | |
9296 | if (p < endp) | |
9297 | *p |= 0x80; | |
9298 | } | |
dc1e8a47 | 9299 | done_adjust_diff: |
35c08157 KLC |
9300 | |
9301 | if (sec == sect) | |
9302 | { | |
9303 | raddr = irel->r_offset; | |
1c8f6a4d KLC |
9304 | irel->r_offset -= get_nds32_elf_blank_total (&blank_t2, |
9305 | irel->r_offset, 1); | |
35c08157 KLC |
9306 | |
9307 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE) | |
9308 | continue; | |
9309 | if (blank_t2 && blank_t2->next | |
1c8f6a4d KLC |
9310 | && (blank_t2->offset > raddr |
9311 | || blank_t2->next->offset <= raddr)) | |
4eca0228 | 9312 | _bfd_error_handler |
38f14ab8 AM |
9313 | (_("%pB: error: search_nds32_elf_blank reports wrong node"), |
9314 | abfd); | |
35c08157 KLC |
9315 | |
9316 | /* Mark reloc in deleted portion as NONE. | |
9317 | For some relocs like R_NDS32_LABEL that doesn't modify the | |
9318 | content in the section. R_NDS32_LABEL doesn't belong to the | |
9319 | instruction in the section, so we should preserve it. */ | |
9320 | if (raddr >= blank_t2->offset | |
9321 | && raddr < blank_t2->offset + blank_t2->size | |
9322 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL | |
9323 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_BEGIN | |
9324 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_REGION_END | |
9325 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_RELAX_ENTRY | |
9326 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_SUBTRAHEND | |
9327 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_MINUEND) | |
9328 | { | |
9329 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
9330 | R_NDS32_NONE); | |
9331 | continue; | |
9332 | } | |
9333 | } | |
9334 | ||
9335 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_NONE | |
9336 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
9337 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY) | |
9338 | continue; | |
9339 | ||
9340 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info | |
9341 | && isym[ELF32_R_SYM (irel->r_info)].st_shndx == sec_shndx | |
9342 | && ELF_ST_TYPE (isym[ELF32_R_SYM (irel->r_info)].st_info) == STT_SECTION) | |
9343 | { | |
9344 | if (irel->r_addend <= sec->size) | |
9345 | irel->r_addend -= | |
9346 | get_nds32_elf_blank_total (&blank_t, irel->r_addend, 1); | |
9347 | } | |
9348 | } | |
9349 | } | |
9350 | ||
9351 | /* Adjust the local symbols defined in this section. */ | |
9352 | blank_t = blank_head; | |
9353 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
9354 | { | |
9355 | if (isym->st_shndx == sec_shndx) | |
9356 | { | |
9357 | if (isym->st_value <= sec->size) | |
9358 | { | |
9359 | bfd_vma ahead; | |
9360 | bfd_vma orig_addr = isym->st_value; | |
9361 | ||
9362 | ahead = get_nds32_elf_blank_total (&blank_t, isym->st_value, 1); | |
9363 | isym->st_value -= ahead; | |
9364 | ||
9365 | /* Adjust function size. */ | |
1c8f6a4d KLC |
9366 | if (ELF32_ST_TYPE (isym->st_info) == STT_FUNC |
9367 | && isym->st_size > 0) | |
9368 | isym->st_size -= | |
9369 | get_nds32_elf_blank_total | |
9370 | (&blank_t, orig_addr + isym->st_size, 0) - ahead; | |
35c08157 KLC |
9371 | } |
9372 | } | |
9373 | } | |
9374 | ||
9375 | /* Now adjust the global symbols defined in this section. */ | |
9376 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
9377 | - symtab_hdr->sh_info); | |
9378 | sym_hashes = elf_sym_hashes (abfd); | |
9379 | end_hashes = sym_hashes + symcount; | |
9380 | blank_t = blank_head; | |
9381 | for (; sym_hashes < end_hashes; sym_hashes++) | |
9382 | { | |
9383 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
9384 | ||
9385 | if ((sym_hash->root.type == bfd_link_hash_defined | |
9386 | || sym_hash->root.type == bfd_link_hash_defweak) | |
9387 | && sym_hash->root.u.def.section == sec) | |
9388 | { | |
9389 | if (sym_hash->root.u.def.value <= sec->size) | |
9390 | { | |
9391 | bfd_vma ahead; | |
9392 | bfd_vma orig_addr = sym_hash->root.u.def.value; | |
9393 | ||
9394 | ahead = get_nds32_elf_blank_total (&blank_t, sym_hash->root.u.def.value, 1); | |
9395 | sym_hash->root.u.def.value -= ahead; | |
9396 | ||
9397 | /* Adjust function size. */ | |
9398 | if (sym_hash->type == STT_FUNC) | |
1c8f6a4d KLC |
9399 | sym_hash->size -= |
9400 | get_nds32_elf_blank_total | |
9401 | (&blank_t, orig_addr + sym_hash->size, 0) - ahead; | |
35c08157 KLC |
9402 | |
9403 | } | |
9404 | } | |
9405 | } | |
9406 | ||
9407 | contents = elf_section_data (sec)->this_hdr.contents; | |
9408 | blank_t = blank_head; | |
9409 | while (blank_t->next) | |
9410 | { | |
9411 | /* Actually delete the bytes. */ | |
9412 | ||
9413 | /* If current blank is the last blank overlap with current section, | |
9414 | go to finish process. */ | |
9415 | if (sec->size <= (blank_t->next->offset)) | |
9416 | break; | |
9417 | ||
9418 | memmove (contents + blank_t->offset - blank_t->total_size, | |
9419 | contents + blank_t->offset + blank_t->size, | |
9420 | blank_t->next->offset - (blank_t->offset + blank_t->size)); | |
9421 | ||
9422 | blank_t = blank_t->next; | |
9423 | } | |
9424 | ||
9425 | if (sec->size > (blank_t->offset + blank_t->size)) | |
9426 | { | |
9427 | /* There are remaining code between blank and section boundary. | |
9428 | Move the remaining code to appropriate location. */ | |
9429 | memmove (contents + blank_t->offset - blank_t->total_size, | |
9430 | contents + blank_t->offset + blank_t->size, | |
9431 | sec->size - (blank_t->offset + blank_t->size)); | |
9432 | sec->size -= blank_t->total_size + blank_t->size; | |
9433 | } | |
9434 | else | |
9435 | /* This blank is not entirely included in the section, | |
9436 | reduce the section size by only part of the blank size. */ | |
9437 | sec->size -= blank_t->total_size + (sec->size - blank_t->offset); | |
9438 | ||
9439 | while (blank_head) | |
9440 | { | |
9441 | blank_t = blank_head; | |
9442 | blank_head = blank_head->next; | |
9443 | remove_nds32_elf_blank (blank_t); | |
9444 | } | |
9445 | ||
9446 | return TRUE; | |
9447 | } | |
9448 | ||
9449 | /* Get the contents of a section. */ | |
9450 | ||
9451 | static int | |
0c4bd9d9 KLC |
9452 | nds32_get_section_contents (bfd *abfd, asection *sec, |
9453 | bfd_byte **contents_p, bfd_boolean cache) | |
35c08157 KLC |
9454 | { |
9455 | /* Get the section contents. */ | |
9456 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
9457 | *contents_p = elf_section_data (sec)->this_hdr.contents; | |
9458 | else | |
9459 | { | |
9460 | if (!bfd_malloc_and_get_section (abfd, sec, contents_p)) | |
9461 | return FALSE; | |
0c4bd9d9 KLC |
9462 | if (cache) |
9463 | elf_section_data (sec)->this_hdr.contents = *contents_p; | |
35c08157 KLC |
9464 | } |
9465 | ||
9466 | return TRUE; | |
9467 | } | |
9468 | ||
9469 | /* Get the contents of the internal symbol of abfd. */ | |
9470 | ||
9471 | static int | |
9472 | nds32_get_local_syms (bfd *abfd, asection *sec ATTRIBUTE_UNUSED, | |
9473 | Elf_Internal_Sym **isymbuf_p) | |
9474 | { | |
9475 | Elf_Internal_Shdr *symtab_hdr; | |
9476 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
9477 | ||
9478 | /* Read this BFD's local symbols if we haven't done so already. */ | |
9479 | if (*isymbuf_p == NULL && symtab_hdr->sh_info != 0) | |
9480 | { | |
9481 | *isymbuf_p = (Elf_Internal_Sym *) symtab_hdr->contents; | |
9482 | if (*isymbuf_p == NULL) | |
9483 | { | |
9484 | *isymbuf_p = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
9485 | symtab_hdr->sh_info, 0, | |
9486 | NULL, NULL, NULL); | |
9487 | if (*isymbuf_p == NULL) | |
9488 | return FALSE; | |
9489 | } | |
9490 | } | |
9491 | symtab_hdr->contents = (bfd_byte *) (*isymbuf_p); | |
9492 | ||
9493 | return TRUE; | |
9494 | } | |
9495 | ||
9496 | /* Range of small data. */ | |
1c8f6a4d KLC |
9497 | static bfd_vma sdata_range[2][2]; |
9498 | static bfd_vma const sdata_init_range[2] = | |
9499 | { ACCURATE_12BIT_S1, ACCURATE_19BIT }; | |
35c08157 KLC |
9500 | |
9501 | static int | |
9502 | nds32_elf_insn_size (bfd *abfd ATTRIBUTE_UNUSED, | |
9503 | bfd_byte *contents, bfd_vma addr) | |
9504 | { | |
9505 | unsigned long insn = bfd_getb32 (contents + addr); | |
9506 | ||
9507 | if (insn & 0x80000000) | |
9508 | return 2; | |
9509 | ||
9510 | return 4; | |
9511 | } | |
9512 | ||
9513 | /* Set the gp relax range. We have to measure the safe range | |
9514 | to do gp relaxation. */ | |
9515 | ||
9516 | static void | |
9517 | relax_range_measurement (bfd *abfd) | |
9518 | { | |
9519 | asection *sec_f, *sec_b; | |
9520 | /* For upper bound. */ | |
9521 | bfd_vma maxpgsz = get_elf_backend_data (abfd)->maxpagesize; | |
9522 | bfd_vma align; | |
35c08157 KLC |
9523 | static int decide_relax_range = 0; |
9524 | int i; | |
fbaf61ad | 9525 | int range_number = ARRAY_SIZE (sdata_init_range); |
35c08157 KLC |
9526 | |
9527 | if (decide_relax_range) | |
9528 | return; | |
9529 | decide_relax_range = 1; | |
9530 | ||
9531 | if (sda_rela_sec == NULL) | |
9532 | { | |
9533 | /* Since there is no data sections, we assume the range is page size. */ | |
1c8f6a4d | 9534 | for (i = 0; i < range_number; i++) |
35c08157 KLC |
9535 | { |
9536 | sdata_range[i][0] = sdata_init_range[i] - 0x1000; | |
9537 | sdata_range[i][1] = sdata_init_range[i] - 0x1000; | |
9538 | } | |
9539 | return; | |
9540 | } | |
9541 | ||
9542 | /* Get the biggest alignment power after the gp located section. */ | |
9543 | sec_f = sda_rela_sec->output_section; | |
9544 | sec_b = sec_f->next; | |
9545 | align = 0; | |
9546 | while (sec_b != NULL) | |
9547 | { | |
9548 | if ((unsigned)(1 << sec_b->alignment_power) > align) | |
9549 | align = (1 << sec_b->alignment_power); | |
9550 | sec_b = sec_b->next; | |
9551 | } | |
9552 | ||
9553 | /* I guess we can not determine the section before | |
9554 | gp located section, so we assume the align is max page size. */ | |
1c8f6a4d | 9555 | for (i = 0; i < range_number; i++) |
35c08157 | 9556 | { |
1c8f6a4d | 9557 | sdata_range[i][1] = sdata_init_range[i] - align; |
35c08157 | 9558 | BFD_ASSERT (sdata_range[i][1] <= sdata_init_range[i]); |
1c8f6a4d | 9559 | sdata_range[i][0] = sdata_init_range[i] - maxpgsz; |
35c08157 KLC |
9560 | BFD_ASSERT (sdata_range[i][0] <= sdata_init_range[i]); |
9561 | } | |
9562 | } | |
9563 | ||
9564 | /* These are macros used to check flags encoded in r_addend. | |
9565 | They are only used by nds32_elf_relax_section (). */ | |
9566 | #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff) | |
9567 | #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000) | |
9568 | #define IS_OPTIMIZE(addend) ((addend) & 0x40000000) | |
9569 | #define IS_16BIT_ON(addend) ((addend) & 0x20000000) | |
9570 | ||
695344c0 NC |
9571 | static const char * unrecognized_reloc_msg = |
9572 | /* xgettext:c-format */ | |
2dcf00ce | 9573 | N_("%pB: warning: %s points to unrecognized reloc at %#" PRIx64); |
695344c0 | 9574 | |
1c8f6a4d KLC |
9575 | /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */ |
9576 | ||
35c08157 | 9577 | static bfd_boolean |
1c8f6a4d KLC |
9578 | nds32_elf_relax_longcall1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, |
9579 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9580 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9581 | Elf_Internal_Shdr *symtab_hdr) | |
9582 | { | |
9583 | /* There are 3 variations for LONGCALL1 | |
9584 | case 4-4-2; 16-bit on, optimize off or optimize for space | |
07d6d2b8 | 9585 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9586 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9587 | jral5 ta ; |
1c8f6a4d KLC |
9588 | |
9589 | case 4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 | 9590 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9591 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9592 | jral ta ; |
1c8f6a4d KLC |
9593 | |
9594 | case 4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 | 9595 | sethi ta, hi20(symbol) ; LONGCALL1/HI20 |
1c8f6a4d | 9596 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9597 | jral ta ; |
1c8f6a4d KLC |
9598 | Check code for -mlong-calls output. */ |
9599 | ||
9600 | /* Get the reloc for the address from which the register is | |
9601 | being loaded. This reloc will tell us which function is | |
9602 | actually being called. */ | |
9603 | ||
9604 | bfd_vma laddr; | |
9605 | int seq_len; /* Original length of instruction sequence. */ | |
35c08157 | 9606 | uint32_t insn; |
1c8f6a4d | 9607 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend; |
1c8f6a4d | 9608 | bfd_signed_vma foff; |
35c08157 | 9609 | uint16_t insn16; |
35c08157 | 9610 | |
1c8f6a4d KLC |
9611 | irelend = internal_relocs + sec->reloc_count; |
9612 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
9613 | laddr = irel->r_offset; | |
9614 | *insn_len = seq_len; | |
35c08157 | 9615 | |
1c8f6a4d KLC |
9616 | hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
9617 | R_NDS32_HI20_RELA, laddr); | |
9618 | lo_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9619 | R_NDS32_LO12S0_ORI_RELA, | |
9620 | laddr + 4); | |
35c08157 | 9621 | |
1c8f6a4d | 9622 | if (hi_irelfn == irelend || lo_irelfn == irelend) |
35c08157 | 9623 | { |
695344c0 | 9624 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL1", |
2dcf00ce | 9625 | (uint64_t) irel->r_offset); |
1c8f6a4d | 9626 | return FALSE; |
35c08157 KLC |
9627 | } |
9628 | ||
1c8f6a4d | 9629 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9630 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9631 | |
1c8f6a4d | 9632 | /* This condition only happened when symbol is undefined. */ |
fbaf61ad NC |
9633 | if (foff == 0 |
9634 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
9635 | || foff >= CONSERVATIVE_24BIT_S1) |
9636 | return FALSE; | |
35c08157 | 9637 | |
fbaf61ad | 9638 | /* Relax to: jal symbol; 25_PCREL. */ |
1c8f6a4d KLC |
9639 | /* For simplicity of coding, we are going to modify the section |
9640 | contents, the section relocs, and the BFD symbol table. We | |
9641 | must tell the rest of the code not to free up this | |
9642 | information. It would be possible to instead create a table | |
9643 | of changes which have to be made, as is done in coff-mips.c; | |
9644 | that would be more work, but would require less memory when | |
9645 | the linker is run. */ | |
9646 | ||
9647 | /* Replace the long call with a jal. */ | |
9648 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
9649 | R_NDS32_25_PCREL_RELA); | |
9650 | irel->r_addend = hi_irelfn->r_addend; | |
9651 | ||
9652 | /* We don't resolve this here but resolve it in relocate_section. */ | |
9653 | insn = INSN_JAL; | |
9654 | bfd_putb32 (insn, contents + irel->r_offset); | |
9655 | ||
9656 | hi_irelfn->r_info = | |
9657 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9658 | lo_irelfn->r_info = | |
9659 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
9660 | *insn_len = 4; | |
9661 | ||
9662 | if (seq_len & 0x2) | |
9663 | { | |
9664 | insn16 = NDS32_NOP16; | |
9665 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
9666 | lo_irelfn->r_info = | |
9667 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16); | |
9668 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
9669 | *insn_len += 2; | |
9670 | } | |
9671 | return TRUE; | |
9672 | } | |
35c08157 | 9673 | |
1c8f6a4d KLC |
9674 | #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000) |
9675 | /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */ | |
35c08157 | 9676 | |
1c8f6a4d KLC |
9677 | static bfd_boolean |
9678 | nds32_elf_relax_longcall2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
9679 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9680 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9681 | Elf_Internal_Shdr *symtab_hdr) | |
9682 | { | |
9683 | /* bltz rt, .L1 ; LONGCALL2 | |
9684 | jal symbol ; 25_PCREL | |
9685 | .L1: */ | |
35c08157 | 9686 | |
1c8f6a4d KLC |
9687 | /* Get the reloc for the address from which the register is |
9688 | being loaded. This reloc will tell us which function is | |
9689 | actually being called. */ | |
35c08157 | 9690 | |
1c8f6a4d KLC |
9691 | bfd_vma laddr; |
9692 | uint32_t insn; | |
9693 | Elf_Internal_Rela *i1_irelfn, *cond_irelfn, *irelend; | |
1c8f6a4d | 9694 | bfd_signed_vma foff; |
35c08157 | 9695 | |
1c8f6a4d KLC |
9696 | irelend = internal_relocs + sec->reloc_count; |
9697 | laddr = irel->r_offset; | |
9698 | i1_irelfn = | |
9699 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9700 | R_NDS32_25_PCREL_RELA, laddr + 4); | |
9701 | ||
9702 | if (i1_irelfn == irelend) | |
35c08157 | 9703 | { |
695344c0 | 9704 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL2", |
2dcf00ce | 9705 | (uint64_t) irel->r_offset); |
1c8f6a4d | 9706 | return FALSE; |
35c08157 KLC |
9707 | } |
9708 | ||
1c8f6a4d | 9709 | insn = bfd_getb32 (contents + laddr); |
35c08157 | 9710 | |
1c8f6a4d | 9711 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9712 | foff = calculate_offset (abfd, sec, i1_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9713 | |
fbaf61ad NC |
9714 | if (foff == 0 |
9715 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d KLC |
9716 | || foff >= CONSERVATIVE_16BIT_S1) |
9717 | return FALSE; | |
35c08157 | 9718 | |
1c8f6a4d KLC |
9719 | /* Relax to bgezal rt, label ; 17_PCREL |
9720 | or bltzal rt, label ; 17_PCREL */ | |
9721 | ||
9722 | /* Convert to complimentary conditional call. */ | |
9723 | insn = CONVERT_CONDITION_CALL (insn); | |
9724 | ||
9725 | /* For simplicity of coding, we are going to modify the section | |
9726 | contents, the section relocs, and the BFD symbol table. We | |
9727 | must tell the rest of the code not to free up this | |
9728 | information. It would be possible to instead create a table | |
9729 | of changes which have to be made, as is done in coff-mips.c; | |
9730 | that would be more work, but would require less memory when | |
9731 | the linker is run. */ | |
9732 | ||
9733 | /* Clean unnessary relocations. */ | |
9734 | i1_irelfn->r_info = | |
9735 | ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), R_NDS32_NONE); | |
9736 | cond_irelfn = | |
9737 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9738 | R_NDS32_17_PCREL_RELA, laddr); | |
9739 | if (cond_irelfn != irelend) | |
9740 | cond_irelfn->r_info = | |
9741 | ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), R_NDS32_NONE); | |
9742 | ||
9743 | /* Replace the long call with a bgezal. */ | |
9744 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i1_irelfn->r_info), | |
9745 | R_NDS32_17_PCREL_RELA); | |
9746 | irel->r_addend = i1_irelfn->r_addend; | |
9747 | ||
9748 | bfd_putb32 (insn, contents + irel->r_offset); | |
9749 | ||
9750 | *insn_len = 4; | |
9751 | return TRUE; | |
9752 | } | |
35c08157 | 9753 | |
1c8f6a4d KLC |
9754 | /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */ |
9755 | ||
9756 | static bfd_boolean | |
9757 | nds32_elf_relax_longcall3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
9758 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9759 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9760 | Elf_Internal_Shdr *symtab_hdr) | |
9761 | { | |
9762 | /* There are 3 variations for LONGCALL3 | |
9763 | case 4-4-4-2; 16-bit on, optimize off or optimize for space | |
07d6d2b8 AM |
9764 | bltz rt, $1 ; LONGCALL3 |
9765 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9766 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9767 | jral5 ta ; |
1c8f6a4d KLC |
9768 | $1 |
9769 | ||
9770 | case 4-4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 AM |
9771 | bltz rt, $1 ; LONGCALL3 |
9772 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9773 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9774 | jral ta ; |
1c8f6a4d KLC |
9775 | $1 |
9776 | ||
9777 | case 4-4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 AM |
9778 | bltz rt, $1 ; LONGCALL3 |
9779 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 9780 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 | 9781 | jral ta ; |
1c8f6a4d KLC |
9782 | $1 */ |
9783 | ||
9784 | /* Get the reloc for the address from which the register is | |
9785 | being loaded. This reloc will tell us which function is | |
9786 | actually being called. */ | |
9787 | ||
9788 | bfd_vma laddr; | |
9789 | int seq_len; /* Original length of instruction sequence. */ | |
9790 | uint32_t insn; | |
9791 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend; | |
1c8f6a4d KLC |
9792 | bfd_signed_vma foff; |
9793 | uint16_t insn16; | |
9794 | ||
9795 | irelend = internal_relocs + sec->reloc_count; | |
9796 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
9797 | laddr = irel->r_offset; | |
9798 | *insn_len = seq_len; | |
9799 | ||
9800 | hi_irelfn = | |
9801 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9802 | R_NDS32_HI20_RELA, laddr + 4); | |
9803 | lo_irelfn = | |
9804 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9805 | R_NDS32_LO12S0_ORI_RELA, laddr + 8); | |
9806 | ||
9807 | if (hi_irelfn == irelend || lo_irelfn == irelend) | |
9808 | { | |
695344c0 | 9809 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL3", |
2dcf00ce | 9810 | (uint64_t) irel->r_offset); |
1c8f6a4d | 9811 | return FALSE; |
35c08157 KLC |
9812 | } |
9813 | ||
1c8f6a4d | 9814 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9815 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9816 | |
fbaf61ad NC |
9817 | if (foff == 0 |
9818 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
9819 | || foff >= CONSERVATIVE_24BIT_S1) |
9820 | return FALSE; | |
35c08157 | 9821 | |
1c8f6a4d KLC |
9822 | insn = bfd_getb32 (contents + laddr); |
9823 | if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
35c08157 | 9824 | { |
1c8f6a4d KLC |
9825 | /* Relax to bgezal rt, label ; 17_PCREL |
9826 | or bltzal rt, label ; 17_PCREL */ | |
35c08157 | 9827 | |
1c8f6a4d KLC |
9828 | /* Convert to complimentary conditional call. */ |
9829 | insn = CONVERT_CONDITION_CALL (insn); | |
9830 | bfd_putb32 (insn, contents + irel->r_offset); | |
35c08157 | 9831 | |
1c8f6a4d KLC |
9832 | *insn_len = 4; |
9833 | irel->r_info = | |
9834 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9835 | hi_irelfn->r_info = | |
9836 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
9837 | lo_irelfn->r_info = | |
9838 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
9839 | ||
9840 | cond_irelfn = | |
9841 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9842 | R_NDS32_17_PCREL_RELA, laddr); | |
9843 | if (cond_irelfn != irelend) | |
35c08157 | 9844 | { |
1c8f6a4d KLC |
9845 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
9846 | R_NDS32_17_PCREL_RELA); | |
9847 | cond_irelfn->r_addend = hi_irelfn->r_addend; | |
35c08157 | 9848 | } |
1c8f6a4d KLC |
9849 | |
9850 | if (seq_len & 0x2) | |
35c08157 | 9851 | { |
1c8f6a4d KLC |
9852 | insn16 = NDS32_NOP16; |
9853 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
9854 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
9855 | R_NDS32_INSN16); | |
9856 | hi_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
9857 | insn_len += 2; | |
35c08157 | 9858 | } |
1c8f6a4d KLC |
9859 | } |
9860 | else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1) | |
9861 | { | |
9862 | /* Relax to the following instruction sequence | |
9863 | bltz rt, $1 ; LONGCALL2 | |
9864 | jal symbol ; 25_PCREL | |
9865 | $1 */ | |
9866 | *insn_len = 8; | |
9867 | insn = INSN_JAL; | |
9868 | bfd_putb32 (insn, contents + hi_irelfn->r_offset); | |
35c08157 | 9869 | |
1c8f6a4d KLC |
9870 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
9871 | R_NDS32_25_PCREL_RELA); | |
9872 | irel->r_info = | |
9873 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL2); | |
9874 | ||
9875 | lo_irelfn->r_info = | |
9876 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
35c08157 | 9877 | |
1c8f6a4d | 9878 | if (seq_len & 0x2) |
35c08157 | 9879 | { |
1c8f6a4d KLC |
9880 | insn16 = NDS32_NOP16; |
9881 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
9882 | lo_irelfn->r_info = | |
9883 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_INSN16); | |
9884 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
9885 | insn_len += 2; | |
9886 | } | |
9887 | } | |
9888 | return TRUE; | |
9889 | } | |
35c08157 | 9890 | |
1c8f6a4d | 9891 | /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */ |
35c08157 | 9892 | |
1c8f6a4d KLC |
9893 | static bfd_boolean |
9894 | nds32_elf_relax_longjump1 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
9895 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
9896 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
9897 | Elf_Internal_Shdr *symtab_hdr) | |
9898 | { | |
9899 | /* There are 3 variations for LONGJUMP1 | |
9900 | case 4-4-2; 16-bit bit on, optimize off or optimize for space | |
07d6d2b8 AM |
9901 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
9902 | ori ta, ta, lo12(symbol) ; LO12S0 | |
9903 | jr5 ta ; | |
1c8f6a4d KLC |
9904 | |
9905 | case 4-4-4; 16-bit off, optimize don't care | |
07d6d2b8 AM |
9906 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
9907 | ori ta, ta, lo12(symbol) ; LO12S0 | |
9908 | jr ta ; | |
1c8f6a4d KLC |
9909 | |
9910 | case 4-4-4; 16-bit on, optimize for speed | |
07d6d2b8 AM |
9911 | sethi ta, hi20(symbol) ; LONGJUMP1/HI20 |
9912 | ori ta, ta, lo12(symbol) ; LO12S0 | |
9913 | jr ta ; */ | |
1c8f6a4d KLC |
9914 | |
9915 | /* Get the reloc for the address from which the register is | |
9916 | being loaded. This reloc will tell us which function is | |
9917 | actually being called. */ | |
9918 | ||
9919 | bfd_vma laddr; | |
9920 | int seq_len; /* Original length of instruction sequence. */ | |
9921 | int insn16_on; /* 16-bit on/off. */ | |
9922 | uint32_t insn; | |
9923 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *irelend; | |
1c8f6a4d KLC |
9924 | bfd_signed_vma foff; |
9925 | uint16_t insn16; | |
9926 | unsigned long reloc; | |
35c08157 | 9927 | |
1c8f6a4d KLC |
9928 | irelend = internal_relocs + sec->reloc_count; |
9929 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
9930 | laddr = irel->r_offset; | |
9931 | *insn_len = seq_len; | |
9932 | insn16_on = IS_16BIT_ON (irel->r_addend); | |
9933 | ||
9934 | hi_irelfn = | |
9935 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9936 | R_NDS32_HI20_RELA, laddr); | |
9937 | lo_irelfn = | |
9938 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
9939 | R_NDS32_LO12S0_ORI_RELA, laddr + 4); | |
9940 | if (hi_irelfn == irelend || lo_irelfn == irelend) | |
9941 | { | |
695344c0 | 9942 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP1", |
2dcf00ce | 9943 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
9944 | return FALSE; |
9945 | } | |
35c08157 | 9946 | |
1c8f6a4d | 9947 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 9948 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 9949 | |
fbaf61ad NC |
9950 | if (foff == 0 |
9951 | || foff >= CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
9952 | || foff < -CONSERVATIVE_24BIT_S1) |
9953 | return FALSE; | |
35c08157 | 9954 | |
fbaf61ad NC |
9955 | if (insn16_on |
9956 | && foff >= -ACCURATE_8BIT_S1 | |
9957 | && foff < ACCURATE_8BIT_S1 | |
9958 | && (seq_len & 0x2)) | |
1c8f6a4d KLC |
9959 | { |
9960 | /* j8 label */ | |
9961 | /* 16-bit on, but not optimized for speed. */ | |
9962 | reloc = R_NDS32_9_PCREL_RELA; | |
9963 | insn16 = INSN_J8; | |
9964 | bfd_putb16 (insn16, contents + irel->r_offset); | |
9965 | *insn_len = 2; | |
9966 | irel->r_info = | |
9967 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
9968 | } | |
9969 | else | |
9970 | { | |
9971 | /* j label */ | |
9972 | reloc = R_NDS32_25_PCREL_RELA; | |
9973 | insn = INSN_J; | |
9974 | bfd_putb32 (insn, contents + irel->r_offset); | |
9975 | *insn_len = 4; | |
9976 | irel->r_info = | |
9977 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_INSN16); | |
9978 | irel->r_addend = 0; | |
9979 | } | |
35c08157 | 9980 | |
1c8f6a4d KLC |
9981 | hi_irelfn->r_info = |
9982 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc); | |
9983 | lo_irelfn->r_info = | |
9984 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_NDS32_NONE); | |
35c08157 | 9985 | |
1c8f6a4d KLC |
9986 | if ((seq_len & 0x2) && ((*insn_len & 2) == 0)) |
9987 | { | |
9988 | insn16 = NDS32_NOP16; | |
9989 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
9990 | lo_irelfn->r_info = | |
9991 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
9992 | R_NDS32_INSN16); | |
9993 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
9994 | *insn_len += 2; | |
9995 | } | |
9996 | return TRUE; | |
9997 | } | |
9998 | ||
9999 | /* Revert condition branch. This function does not check if the input | |
10000 | instruction is condition branch or not. */ | |
10001 | ||
10002 | static void | |
10003 | nds32_elf_convert_branch (uint16_t insn16, uint32_t insn, | |
10004 | uint16_t *re_insn16, uint32_t *re_insn) | |
10005 | { | |
10006 | uint32_t comp_insn = 0; | |
10007 | uint16_t comp_insn16 = 0; | |
10008 | ||
10009 | if (insn) | |
10010 | { | |
10011 | if (N32_OP6 (insn) == N32_OP6_BR1) | |
10012 | { | |
10013 | /* beqs label. */ | |
10014 | comp_insn = (insn ^ 0x4000) & 0xffffc000; | |
10015 | if (N32_IS_RT3 (insn) && N32_RA5 (insn) == REG_R5) | |
35c08157 | 10016 | { |
1c8f6a4d KLC |
10017 | /* Insn can be contracted to 16-bit implied r5. */ |
10018 | comp_insn16 = | |
10019 | (comp_insn & 0x4000) ? INSN_BNES38 : INSN_BEQS38; | |
10020 | comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8; | |
35c08157 | 10021 | } |
1c8f6a4d KLC |
10022 | } |
10023 | else if (N32_OP6 (insn) == N32_OP6_BR3) | |
10024 | { | |
10025 | /* bnec $ta, imm11, label. */ | |
10026 | comp_insn = (insn ^ 0x80000) & 0xffffff00; | |
10027 | } | |
10028 | else | |
10029 | { | |
10030 | comp_insn = (insn ^ 0x10000) & 0xffffc000; | |
10031 | if (N32_BR2_SUB (insn) == N32_BR2_BEQZ | |
10032 | || N32_BR2_SUB (insn) == N32_BR2_BNEZ) | |
35c08157 | 10033 | { |
1c8f6a4d | 10034 | if (N32_IS_RT3 (insn)) |
35c08157 | 10035 | { |
1c8f6a4d KLC |
10036 | /* Insn can be contracted to 16-bit. */ |
10037 | comp_insn16 = | |
10038 | (comp_insn & 0x10000) ? INSN_BNEZ38 : INSN_BEQZ38; | |
10039 | comp_insn16 |= (N32_RT5 (insn) & 0x7) << 8; | |
10040 | } | |
10041 | else if (N32_RT5 (insn) == REG_R15) | |
10042 | { | |
10043 | /* Insn can be contracted to 16-bit. */ | |
10044 | comp_insn16 = | |
10045 | (comp_insn & 0x10000) ? INSN_BNES38 : INSN_BEQS38; | |
35c08157 | 10046 | } |
35c08157 KLC |
10047 | } |
10048 | } | |
1c8f6a4d KLC |
10049 | } |
10050 | else | |
10051 | { | |
10052 | switch ((insn16 & 0xf000) >> 12) | |
35c08157 | 10053 | { |
1c8f6a4d KLC |
10054 | case 0xc: |
10055 | /* beqz38 or bnez38 */ | |
10056 | comp_insn16 = (insn16 ^ 0x0800) & 0xff00; | |
10057 | comp_insn = (comp_insn16 & 0x0800) ? INSN_BNEZ : INSN_BEQZ; | |
10058 | comp_insn |= ((comp_insn16 & 0x0700) >> 8) << 20; | |
10059 | break; | |
35c08157 | 10060 | |
1c8f6a4d KLC |
10061 | case 0xd: |
10062 | /* beqs38 or bnes38 */ | |
10063 | comp_insn16 = (insn16 ^ 0x0800) & 0xff00; | |
10064 | comp_insn = (comp_insn16 & 0x0800) ? INSN_BNE : INSN_BEQ; | |
10065 | comp_insn |= (((comp_insn16 & 0x0700) >> 8) << 20) | |
10066 | | (REG_R5 << 15); | |
10067 | break; | |
35c08157 | 10068 | |
1c8f6a4d KLC |
10069 | case 0xe: |
10070 | /* beqzS8 or bnezS8 */ | |
10071 | comp_insn16 = (insn16 ^ 0x0100) & 0xff00; | |
10072 | comp_insn = (comp_insn16 & 0x0100) ? INSN_BNEZ : INSN_BEQZ; | |
10073 | comp_insn |= REG_R15 << 20; | |
10074 | break; | |
35c08157 | 10075 | |
1c8f6a4d KLC |
10076 | default: |
10077 | break; | |
10078 | } | |
10079 | } | |
10080 | if (comp_insn && re_insn) | |
10081 | *re_insn = comp_insn; | |
10082 | if (comp_insn16 && re_insn16) | |
10083 | *re_insn16 = comp_insn16; | |
10084 | } | |
35c08157 | 10085 | |
1c8f6a4d | 10086 | /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */ |
35c08157 | 10087 | |
1c8f6a4d KLC |
10088 | static bfd_boolean |
10089 | nds32_elf_relax_longjump2 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10090 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10091 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10092 | Elf_Internal_Shdr *symtab_hdr) | |
10093 | { | |
10094 | /* There are 3 variations for LONGJUMP2 | |
10095 | case 2-4; 1st insn convertible, 16-bit on, | |
10096 | optimize off or optimize for space | |
10097 | bnes38 rt, ra, $1 ; LONGJUMP2 | |
10098 | j label ; 25_PCREL | |
10099 | $1: | |
10100 | ||
10101 | case 4-4; 1st insn not convertible | |
10102 | bne rt, ra, $1 ; LONGJUMP2 | |
10103 | j label ; 25_PCREL | |
10104 | $1: | |
10105 | ||
10106 | case 4-4; 1st insn convertible, 16-bit on, optimize for speed | |
10107 | bne rt, ra, $1 ; LONGJUMP2 | |
10108 | j label ; 25_PCREL | |
10109 | $1: */ | |
10110 | ||
10111 | /* Get the reloc for the address from which the register is | |
10112 | being loaded. This reloc will tell us which function is | |
10113 | actually being called. */ | |
10114 | ||
10115 | bfd_vma laddr; | |
10116 | int seq_len; /* Original length of instruction sequence. */ | |
10117 | Elf_Internal_Rela *i2_irelfn, *cond_irelfn, *irelend; | |
fbaf61ad | 10118 | int first_size; |
1c8f6a4d KLC |
10119 | unsigned int i; |
10120 | bfd_signed_vma foff; | |
10121 | uint32_t insn, re_insn = 0; | |
10122 | uint16_t insn16, re_insn16 = 0; | |
10123 | unsigned long reloc, cond_reloc; | |
35c08157 | 10124 | |
1c8f6a4d KLC |
10125 | enum elf_nds32_reloc_type checked_types[] = |
10126 | { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA }; | |
35c08157 | 10127 | |
1c8f6a4d KLC |
10128 | irelend = internal_relocs + sec->reloc_count; |
10129 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10130 | laddr = irel->r_offset; | |
10131 | *insn_len = seq_len; | |
10132 | first_size = (seq_len == 6) ? 2 : 4; | |
10133 | ||
10134 | i2_irelfn = | |
10135 | find_relocs_at_address_addr (irel, internal_relocs, | |
10136 | irelend, R_NDS32_25_PCREL_RELA, | |
10137 | laddr + first_size); | |
10138 | ||
fbaf61ad | 10139 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
10140 | { |
10141 | cond_irelfn = | |
10142 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10143 | checked_types[i], laddr); | |
10144 | if (cond_irelfn != irelend) | |
10145 | break; | |
10146 | } | |
35c08157 | 10147 | |
1c8f6a4d KLC |
10148 | if (i2_irelfn == irelend || cond_irelfn == irelend) |
10149 | { | |
695344c0 | 10150 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP2", |
2dcf00ce | 10151 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10152 | return FALSE; |
10153 | } | |
35c08157 | 10154 | |
1c8f6a4d | 10155 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad NC |
10156 | foff = calculate_offset (abfd, sec, i2_irelfn, isymbuf, symtab_hdr); |
10157 | if (foff == 0 | |
10158 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d KLC |
10159 | || foff >= CONSERVATIVE_16BIT_S1) |
10160 | return FALSE; | |
35c08157 | 10161 | |
1c8f6a4d KLC |
10162 | /* Get the all corresponding instructions. */ |
10163 | if (first_size == 4) | |
10164 | { | |
10165 | insn = bfd_getb32 (contents + laddr); | |
10166 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
10167 | } | |
10168 | else | |
10169 | { | |
10170 | insn16 = bfd_getb16 (contents + laddr); | |
10171 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
10172 | } | |
35c08157 | 10173 | |
1c8f6a4d KLC |
10174 | if (re_insn16 && foff >= -(ACCURATE_8BIT_S1 - first_size) |
10175 | && foff < ACCURATE_8BIT_S1 - first_size) | |
10176 | { | |
10177 | if (first_size == 4) | |
10178 | { | |
10179 | /* Don't convert it to 16-bit now, keep this as relaxable for | |
10180 | ``label reloc; INSN16''. */ | |
35c08157 | 10181 | |
1c8f6a4d KLC |
10182 | /* Save comp_insn32 to buffer. */ |
10183 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10184 | *insn_len = 4; | |
10185 | reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ? | |
10186 | R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA; | |
10187 | cond_reloc = R_NDS32_INSN16; | |
10188 | } | |
10189 | else | |
10190 | { | |
10191 | bfd_putb16 (re_insn16, contents + irel->r_offset); | |
10192 | *insn_len = 2; | |
10193 | reloc = R_NDS32_9_PCREL_RELA; | |
10194 | cond_reloc = R_NDS32_NONE; | |
10195 | } | |
10196 | } | |
10197 | else if (N32_OP6 (re_insn) == N32_OP6_BR1 | |
10198 | && (foff >= -(ACCURATE_14BIT_S1 - first_size) | |
10199 | && foff < ACCURATE_14BIT_S1 - first_size)) | |
10200 | { | |
10201 | /* beqs label ; 15_PCREL */ | |
10202 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10203 | *insn_len = 4; | |
10204 | reloc = R_NDS32_15_PCREL_RELA; | |
10205 | cond_reloc = R_NDS32_NONE; | |
10206 | } | |
10207 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
10208 | && foff >= -CONSERVATIVE_16BIT_S1 | |
10209 | && foff < CONSERVATIVE_16BIT_S1) | |
10210 | { | |
10211 | /* beqz label ; 17_PCREL */ | |
10212 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10213 | *insn_len = 4; | |
10214 | reloc = R_NDS32_17_PCREL_RELA; | |
10215 | cond_reloc = R_NDS32_NONE; | |
10216 | } | |
10217 | else | |
10218 | return FALSE; | |
35c08157 | 10219 | |
1c8f6a4d KLC |
10220 | /* Set all relocations. */ |
10221 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), reloc); | |
10222 | irel->r_addend = i2_irelfn->r_addend; | |
35c08157 | 10223 | |
1c8f6a4d KLC |
10224 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), |
10225 | cond_reloc); | |
10226 | cond_irelfn->r_addend = 0; | |
35c08157 | 10227 | |
1c8f6a4d KLC |
10228 | if ((seq_len ^ *insn_len ) & 0x2) |
10229 | { | |
10230 | insn16 = NDS32_NOP16; | |
10231 | bfd_putb16 (insn16, contents + irel->r_offset + 4); | |
10232 | i2_irelfn->r_offset = 4; | |
10233 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), | |
10234 | R_NDS32_INSN16); | |
10235 | i2_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10236 | *insn_len += 2; | |
10237 | } | |
10238 | else | |
10239 | i2_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (i2_irelfn->r_info), | |
10240 | R_NDS32_NONE); | |
10241 | return TRUE; | |
10242 | } | |
35c08157 | 10243 | |
1c8f6a4d | 10244 | /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */ |
35c08157 | 10245 | |
1c8f6a4d KLC |
10246 | static bfd_boolean |
10247 | nds32_elf_relax_longjump3 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10248 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10249 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10250 | Elf_Internal_Shdr *symtab_hdr) | |
10251 | { | |
10252 | /* There are 5 variations for LONGJUMP3 | |
10253 | case 1: 2-4-4-2; 1st insn convertible, 16-bit on, | |
10254 | optimize off or optimize for space | |
07d6d2b8 AM |
10255 | bnes38 rt, ra, $1 ; LONGJUMP3 |
10256 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10257 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10258 | jr5 ta ; |
10259 | $1: ; | |
1c8f6a4d KLC |
10260 | |
10261 | case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed | |
07d6d2b8 AM |
10262 | bnes38 rt, ra, $1 ; LONGJUMP3 |
10263 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10264 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10265 | jr5 ta ; |
10266 | $1: ; LABEL | |
1c8f6a4d KLC |
10267 | |
10268 | case 3: 4-4-4-2; 1st insn not convertible, 16-bit on, | |
10269 | optimize off or optimize for space | |
07d6d2b8 AM |
10270 | bne rt, ra, $1 ; LONGJUMP3 |
10271 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10272 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10273 | jr5 ta ; |
10274 | $1: ; | |
1c8f6a4d KLC |
10275 | |
10276 | case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care | |
10277 | 16-bit off if no INSN16 | |
07d6d2b8 AM |
10278 | bne rt, ra, $1 ; LONGJUMP3 |
10279 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10280 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10281 | jr ta ; |
10282 | $1: ; | |
1c8f6a4d KLC |
10283 | |
10284 | case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed | |
10285 | 16-bit off if no INSN16 | |
07d6d2b8 AM |
10286 | bne rt, ra, $1 ; LONGJUMP3 |
10287 | sethi ta, hi20(symbol) ; HI20 | |
1c8f6a4d | 10288 | ori ta, ta, lo12(symbol) ; LO12S0 |
07d6d2b8 AM |
10289 | jr ta ; |
10290 | $1: ; LABEL */ | |
1c8f6a4d KLC |
10291 | |
10292 | /* Get the reloc for the address from which the register is | |
10293 | being loaded. This reloc will tell us which function is | |
10294 | actually being called. */ | |
10295 | enum elf_nds32_reloc_type checked_types[] = | |
10296 | { R_NDS32_15_PCREL_RELA, R_NDS32_9_PCREL_RELA }; | |
10297 | ||
10298 | int reloc_off = 0, cond_removed = 0, convertible; | |
10299 | bfd_vma laddr; | |
10300 | int seq_len; /* Original length of instruction sequence. */ | |
10301 | Elf_Internal_Rela *hi_irelfn, *lo_irelfn, *cond_irelfn, *irelend; | |
fbaf61ad | 10302 | int first_size; |
1c8f6a4d KLC |
10303 | unsigned int i; |
10304 | bfd_signed_vma foff; | |
10305 | uint32_t insn, re_insn = 0; | |
10306 | uint16_t insn16, re_insn16 = 0; | |
10307 | unsigned long reloc, cond_reloc; | |
35c08157 | 10308 | |
1c8f6a4d KLC |
10309 | irelend = internal_relocs + sec->reloc_count; |
10310 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10311 | laddr = irel->r_offset; | |
10312 | *insn_len = seq_len; | |
35c08157 | 10313 | |
1c8f6a4d | 10314 | convertible = IS_1ST_CONVERT (irel->r_addend); |
35c08157 | 10315 | |
1c8f6a4d KLC |
10316 | if (convertible) |
10317 | first_size = 2; | |
10318 | else | |
10319 | first_size = 4; | |
10320 | ||
10321 | /* Get all needed relocations. */ | |
10322 | hi_irelfn = | |
10323 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10324 | R_NDS32_HI20_RELA, laddr + first_size); | |
10325 | lo_irelfn = | |
10326 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10327 | R_NDS32_LO12S0_ORI_RELA, | |
10328 | laddr + first_size + 4); | |
10329 | ||
fbaf61ad | 10330 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
10331 | { |
10332 | cond_irelfn = | |
10333 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10334 | checked_types[i], laddr); | |
10335 | if (cond_irelfn != irelend) | |
10336 | break; | |
10337 | } | |
35c08157 | 10338 | |
fbaf61ad NC |
10339 | if (hi_irelfn == irelend |
10340 | || lo_irelfn == irelend | |
10341 | || cond_irelfn == irelend) | |
1c8f6a4d | 10342 | { |
695344c0 | 10343 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP3", |
2dcf00ce | 10344 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10345 | return FALSE; |
10346 | } | |
35c08157 | 10347 | |
1c8f6a4d | 10348 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10349 | foff = calculate_offset (abfd, sec, hi_irelfn, isymbuf, symtab_hdr); |
35c08157 | 10350 | |
fbaf61ad NC |
10351 | if (foff == 0 |
10352 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10353 | || foff >= CONSERVATIVE_24BIT_S1) |
10354 | return FALSE; | |
35c08157 | 10355 | |
1c8f6a4d KLC |
10356 | /* Get the all corresponding instructions. */ |
10357 | if (first_size == 4) | |
10358 | { | |
10359 | insn = bfd_getb32 (contents + laddr); | |
10360 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
10361 | } | |
10362 | else | |
10363 | { | |
10364 | insn16 = bfd_getb16 (contents + laddr); | |
10365 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
10366 | } | |
35c08157 | 10367 | |
1c8f6a4d KLC |
10368 | /* For simplicity of coding, we are going to modify the section |
10369 | contents, the section relocs, and the BFD symbol table. We | |
10370 | must tell the rest of the code not to free up this | |
10371 | information. It would be possible to instead create a table | |
10372 | of changes which have to be made, as is done in coff-mips.c; | |
10373 | that would be more work, but would require less memory when | |
10374 | the linker is run. */ | |
35c08157 | 10375 | |
fbaf61ad NC |
10376 | if (re_insn16 |
10377 | && foff >= -ACCURATE_8BIT_S1 - first_size | |
1c8f6a4d KLC |
10378 | && foff < ACCURATE_8BIT_S1 - first_size) |
10379 | { | |
10380 | if (!(seq_len & 0x2)) | |
10381 | { | |
10382 | /* Don't convert it to 16-bit now, keep this as relaxable | |
10383 | for ``label reloc; INSN1a''6. */ | |
10384 | /* Save comp_insn32 to buffer. */ | |
10385 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10386 | *insn_len = 4; | |
10387 | reloc = (N32_OP6 (re_insn) == N32_OP6_BR1) ? | |
10388 | R_NDS32_15_PCREL_RELA : R_NDS32_17_PCREL_RELA; | |
10389 | cond_reloc = R_NDS32_INSN16; | |
10390 | } | |
10391 | else | |
10392 | { | |
10393 | /* Not optimize for speed; convert sequence to 16-bit. */ | |
10394 | /* Save comp_insn16 to buffer. */ | |
10395 | bfd_putb16 (re_insn16, contents + irel->r_offset); | |
10396 | *insn_len = 2; | |
10397 | reloc = R_NDS32_9_PCREL_RELA; | |
10398 | cond_reloc = R_NDS32_NONE; | |
10399 | } | |
10400 | cond_removed = 1; | |
10401 | } | |
10402 | else if (N32_OP6 (re_insn) == N32_OP6_BR1 | |
10403 | && (foff >= -(ACCURATE_14BIT_S1 - first_size) | |
10404 | && foff < ACCURATE_14BIT_S1 - first_size)) | |
10405 | { | |
10406 | /* beqs label ; 15_PCREL */ | |
10407 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10408 | *insn_len = 4; | |
10409 | reloc = R_NDS32_15_PCREL_RELA; | |
10410 | cond_reloc = R_NDS32_NONE; | |
10411 | cond_removed = 1; | |
10412 | } | |
10413 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
10414 | && foff >= -CONSERVATIVE_16BIT_S1 | |
10415 | && foff < CONSERVATIVE_16BIT_S1) | |
10416 | { | |
10417 | /* beqz label ; 17_PCREL */ | |
10418 | bfd_putb32 (re_insn, contents + irel->r_offset); | |
10419 | *insn_len = 4; | |
10420 | reloc = R_NDS32_17_PCREL_RELA; | |
10421 | cond_reloc = R_NDS32_NONE; | |
10422 | cond_removed = 1; | |
10423 | } | |
10424 | else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off | |
10425 | && foff < CONSERVATIVE_24BIT_S1 - reloc_off) | |
10426 | { | |
10427 | /* Relax to one of the following 3 variations | |
10428 | ||
10429 | case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize | |
10430 | for space | |
10431 | bnes38 rt, $1 ; LONGJUMP2 | |
10432 | j label ; 25_PCREL | |
10433 | $1 | |
10434 | ||
10435 | case 4-4; 1st insn not convertible, others don't care | |
10436 | bne rt, ra, $1 ; LONGJUMP2 | |
10437 | j label ; 25_PCREL | |
10438 | $1 | |
10439 | ||
10440 | case 4-4; 1st insn convertible, 16-bit on, optimize for speed | |
10441 | bne rt, ra, $1 ; LONGJUMP2 | |
10442 | j label ; 25_PCREL | |
10443 | $1 */ | |
10444 | ||
10445 | /* Offset for first instruction. */ | |
10446 | ||
10447 | /* Use j label as second instruction. */ | |
10448 | *insn_len = 4 + first_size; | |
10449 | insn = INSN_J; | |
10450 | bfd_putb32 (insn, contents + hi_irelfn->r_offset); | |
10451 | reloc = R_NDS32_LONGJUMP2; | |
10452 | cond_reloc = R_NDS32_25_PLTREL; | |
10453 | } | |
10454 | else | |
10455 | return FALSE; | |
35c08157 | 10456 | |
1c8f6a4d KLC |
10457 | if (cond_removed == 1) |
10458 | { | |
10459 | /* Set all relocations. */ | |
10460 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), reloc); | |
10461 | irel->r_addend = hi_irelfn->r_addend; | |
10462 | ||
10463 | cond_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irelfn->r_info), | |
10464 | cond_reloc); | |
10465 | cond_irelfn->r_addend = 0; | |
10466 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), | |
10467 | R_NDS32_NONE); | |
10468 | } | |
10469 | else | |
10470 | { | |
10471 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
fbaf61ad | 10472 | irel->r_addend = irel->r_addend; |
1c8f6a4d KLC |
10473 | hi_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), |
10474 | cond_reloc); | |
10475 | } | |
35c08157 | 10476 | |
1c8f6a4d KLC |
10477 | if ((seq_len ^ *insn_len ) & 0x2) |
10478 | { | |
10479 | insn16 = NDS32_NOP16; | |
10480 | bfd_putb16 (insn16, contents + irel->r_offset + *insn_len); | |
10481 | lo_irelfn->r_offset = *insn_len; | |
10482 | lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
10483 | R_NDS32_INSN16); | |
10484 | lo_irelfn->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
10485 | *insn_len += 2; | |
10486 | } | |
10487 | else | |
10488 | lo_irelfn->r_info = ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), | |
10489 | R_NDS32_NONE); | |
10490 | return TRUE; | |
10491 | } | |
35c08157 | 10492 | |
1c8f6a4d | 10493 | /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */ |
35c08157 | 10494 | |
1c8f6a4d KLC |
10495 | static bfd_boolean |
10496 | nds32_elf_relax_longcall4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10497 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10498 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10499 | Elf_Internal_Shdr *symtab_hdr) | |
10500 | { | |
10501 | /* The pattern for LONGCALL4. Support for function cse. | |
10502 | sethi ta, hi20(symbol) ; LONGCALL4/HI20 | |
10503 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10504 | jral ta ; PTR_RES/EMPTY/INSN16 */ | |
35c08157 | 10505 | |
1c8f6a4d KLC |
10506 | bfd_vma laddr; |
10507 | uint32_t insn; | |
10508 | Elf_Internal_Rela *hi_irel, *ptr_irel, *insn_irel, *em_irel, *call_irel; | |
10509 | Elf_Internal_Rela *irelend; | |
1c8f6a4d | 10510 | bfd_signed_vma foff; |
35c08157 | 10511 | |
1c8f6a4d KLC |
10512 | irelend = internal_relocs + sec->reloc_count; |
10513 | laddr = irel->r_offset; | |
35c08157 | 10514 | |
1c8f6a4d KLC |
10515 | /* Get the reloc for the address from which the register is |
10516 | being loaded. This reloc will tell us which function is | |
10517 | actually being called. */ | |
10518 | hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10519 | R_NDS32_HI20_RELA, laddr); | |
35c08157 | 10520 | |
1c8f6a4d KLC |
10521 | if (hi_irel == irelend) |
10522 | { | |
695344c0 | 10523 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL4", |
2dcf00ce | 10524 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10525 | return FALSE; |
10526 | } | |
35c08157 | 10527 | |
1c8f6a4d | 10528 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10529 | foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr); |
35c08157 | 10530 | |
1c8f6a4d | 10531 | /* This condition only happened when symbol is undefined. */ |
fbaf61ad NC |
10532 | if (foff == 0 |
10533 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10534 | || foff >= CONSERVATIVE_24BIT_S1) |
10535 | return FALSE; | |
35c08157 | 10536 | |
fbaf61ad | 10537 | /* Relax to: jal symbol; 25_PCREL. */ |
1c8f6a4d KLC |
10538 | /* For simplicity of coding, we are going to modify the section |
10539 | contents, the section relocs, and the BFD symbol table. We | |
10540 | must tell the rest of the code not to free up this | |
10541 | information. It would be possible to instead create a table | |
10542 | of changes which have to be made, as is done in coff-mips.c; | |
10543 | that would be more work, but would require less memory when | |
10544 | the linker is run. */ | |
35c08157 | 10545 | |
1c8f6a4d KLC |
10546 | ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10547 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10548 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10549 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 10550 | |
1c8f6a4d KLC |
10551 | if (ptr_irel == irelend || em_irel == irelend) |
10552 | { | |
695344c0 | 10553 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL4", |
2dcf00ce | 10554 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10555 | return FALSE; |
10556 | } | |
10557 | /* Check these is enough space to insert jal in R_NDS32_EMPTY. */ | |
10558 | insn = bfd_getb32 (contents + irel->r_addend); | |
10559 | if (insn & 0x80000000) | |
10560 | return FALSE; | |
35c08157 | 10561 | |
1c8f6a4d KLC |
10562 | /* Replace the long call with a jal. */ |
10563 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), | |
10564 | R_NDS32_25_PCREL_RELA); | |
10565 | ptr_irel->r_addend = 1; | |
35c08157 | 10566 | |
1c8f6a4d KLC |
10567 | /* We don't resolve this here but resolve it in relocate_section. */ |
10568 | insn = INSN_JAL; | |
10569 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 10570 | |
1c8f6a4d KLC |
10571 | irel->r_info = |
10572 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10573 | |
1c8f6a4d KLC |
10574 | /* If there is function cse, HI20 can not remove now. */ |
10575 | call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10576 | R_NDS32_LONGCALL4, laddr); | |
10577 | if (call_irel == irelend) | |
10578 | { | |
10579 | *insn_len = 0; | |
10580 | hi_irel->r_info = | |
10581 | ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE); | |
10582 | } | |
35c08157 | 10583 | |
1c8f6a4d KLC |
10584 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10585 | R_NDS32_INSN16, irel->r_addend); | |
10586 | if (insn_irel != irelend) | |
10587 | insn_irel->r_info = | |
10588 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10589 | |
1c8f6a4d KLC |
10590 | return TRUE; |
10591 | } | |
35c08157 | 10592 | |
1c8f6a4d | 10593 | /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */ |
35c08157 | 10594 | |
1c8f6a4d KLC |
10595 | static bfd_boolean |
10596 | nds32_elf_relax_longcall5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10597 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10598 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10599 | Elf_Internal_Shdr *symtab_hdr) | |
10600 | { | |
10601 | /* The pattern for LONGCALL5. | |
10602 | bltz rt, .L1 ; LONGCALL5/17_PCREL | |
10603 | jal symbol ; 25_PCREL | |
10604 | .L1: */ | |
35c08157 | 10605 | |
1c8f6a4d KLC |
10606 | bfd_vma laddr; |
10607 | uint32_t insn; | |
10608 | Elf_Internal_Rela *cond_irel, *irelend; | |
1c8f6a4d | 10609 | bfd_signed_vma foff; |
35c08157 | 10610 | |
1c8f6a4d KLC |
10611 | irelend = internal_relocs + sec->reloc_count; |
10612 | laddr = irel->r_offset; | |
10613 | insn = bfd_getb32 (contents + laddr); | |
35c08157 | 10614 | |
1c8f6a4d KLC |
10615 | /* Get the reloc for the address from which the register is |
10616 | being loaded. This reloc will tell us which function is | |
10617 | actually being called. */ | |
10618 | cond_irel = | |
10619 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10620 | R_NDS32_25_PCREL_RELA, irel->r_addend); | |
10621 | if (cond_irel == irelend) | |
10622 | { | |
695344c0 | 10623 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL5", |
2dcf00ce | 10624 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10625 | return FALSE; |
10626 | } | |
35c08157 | 10627 | |
1c8f6a4d | 10628 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10629 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 10630 | |
fbaf61ad NC |
10631 | if (foff == 0 |
10632 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d KLC |
10633 | || foff >= CONSERVATIVE_16BIT_S1) |
10634 | return FALSE; | |
35c08157 | 10635 | |
1c8f6a4d | 10636 | /* Relax to bgezal rt, label ; 17_PCREL |
fbaf61ad | 10637 | or bltzal rt, label ; 17_PCREL. */ |
35c08157 | 10638 | |
1c8f6a4d KLC |
10639 | /* Convert to complimentary conditional call. */ |
10640 | insn = CONVERT_CONDITION_CALL (insn); | |
35c08157 | 10641 | |
1c8f6a4d KLC |
10642 | /* For simplicity of coding, we are going to modify the section |
10643 | contents, the section relocs, and the BFD symbol table. We | |
10644 | must tell the rest of the code not to free up this | |
10645 | information. It would be possible to instead create a table | |
10646 | of changes which have to be made, as is done in coff-mips.c; | |
10647 | that would be more work, but would require less memory when | |
10648 | the linker is run. */ | |
35c08157 | 10649 | |
1c8f6a4d KLC |
10650 | /* Modify relocation and contents. */ |
10651 | cond_irel->r_info = | |
10652 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_17_PCREL_RELA); | |
35c08157 | 10653 | |
1c8f6a4d KLC |
10654 | /* Replace the long call with a bgezal. */ |
10655 | bfd_putb32 (insn, contents + cond_irel->r_offset); | |
10656 | *insn_len = 0; | |
35c08157 | 10657 | |
1c8f6a4d KLC |
10658 | /* Clean unnessary relocations. */ |
10659 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10660 | |
1c8f6a4d KLC |
10661 | cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10662 | R_NDS32_17_PCREL_RELA, laddr); | |
10663 | cond_irel->r_info = | |
10664 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10665 | |
1c8f6a4d KLC |
10666 | return TRUE; |
10667 | } | |
35c08157 | 10668 | |
1c8f6a4d | 10669 | /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */ |
35c08157 | 10670 | |
1c8f6a4d KLC |
10671 | static bfd_boolean |
10672 | nds32_elf_relax_longcall6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10673 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10674 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10675 | Elf_Internal_Shdr *symtab_hdr) | |
10676 | { | |
10677 | /* The pattern for LONGCALL6. | |
10678 | bltz rt, .L1 ; LONGCALL6/17_PCREL | |
10679 | sethi ta, hi20(symbol) ; HI20/PTR | |
10680 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10681 | jral ta ; PTR_RES/EMPTY/INSN16 | |
10682 | .L1 */ | |
10683 | ||
10684 | bfd_vma laddr; | |
10685 | uint32_t insn; | |
10686 | Elf_Internal_Rela *em_irel, *cond_irel, *irelend; | |
1c8f6a4d | 10687 | bfd_signed_vma foff; |
35c08157 | 10688 | |
1c8f6a4d KLC |
10689 | irelend = internal_relocs + sec->reloc_count; |
10690 | laddr = irel->r_offset; | |
35c08157 | 10691 | |
1c8f6a4d KLC |
10692 | /* Get the reloc for the address from which the register is |
10693 | being loaded. This reloc will tell us which function is | |
10694 | actually being called. */ | |
10695 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10696 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 10697 | |
1c8f6a4d KLC |
10698 | if (em_irel == irelend) |
10699 | { | |
695344c0 | 10700 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGCALL6", |
2dcf00ce | 10701 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10702 | return FALSE; |
10703 | } | |
35c08157 | 10704 | |
1c8f6a4d | 10705 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10706 | foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr); |
35c08157 | 10707 | |
fbaf61ad NC |
10708 | if (foff == 0 |
10709 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10710 | || foff >= CONSERVATIVE_24BIT_S1) |
10711 | return FALSE; | |
35c08157 | 10712 | |
1c8f6a4d KLC |
10713 | /* Check these is enough space to insert jal in R_NDS32_EMPTY. */ |
10714 | insn = bfd_getb32 (contents + irel->r_addend); | |
10715 | if (insn & 0x80000000) | |
10716 | return FALSE; | |
35c08157 | 10717 | |
1c8f6a4d KLC |
10718 | insn = bfd_getb32 (contents + laddr); |
10719 | if (foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
10720 | { | |
10721 | /* Relax to bgezal rt, label ; 17_PCREL | |
fbaf61ad | 10722 | or bltzal rt, label ; 17_PCREL. */ |
35c08157 | 10723 | |
1c8f6a4d KLC |
10724 | /* Convert to complimentary conditional call. */ |
10725 | *insn_len = 0; | |
10726 | insn = CONVERT_CONDITION_CALL (insn); | |
10727 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
10728 | ||
10729 | em_irel->r_info = | |
10730 | ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_17_PCREL_RELA); | |
10731 | ||
10732 | /* Set resolved relocation. */ | |
10733 | cond_irel = | |
10734 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10735 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10736 | if (cond_irel == irelend) | |
35c08157 | 10737 | { |
695344c0 | 10738 | _bfd_error_handler (unrecognized_reloc_msg, abfd, |
2dcf00ce | 10739 | "R_NDS32_LONGCALL6", (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10740 | return FALSE; |
10741 | } | |
10742 | cond_irel->r_addend = 1; | |
35c08157 | 10743 | |
1c8f6a4d | 10744 | /* Clear relocations. */ |
35c08157 | 10745 | |
1c8f6a4d KLC |
10746 | irel->r_info = |
10747 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10748 | |
1c8f6a4d KLC |
10749 | cond_irel = |
10750 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10751 | R_NDS32_17_PCREL_RELA, laddr); | |
10752 | if (cond_irel != irelend) | |
10753 | cond_irel->r_info = | |
10754 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10755 | |
1c8f6a4d KLC |
10756 | cond_irel = |
10757 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10758 | R_NDS32_INSN16, irel->r_addend); | |
10759 | if (cond_irel != irelend) | |
10760 | cond_irel->r_info = | |
10761 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 10762 | |
1c8f6a4d KLC |
10763 | } |
10764 | else if (foff >= -CONSERVATIVE_24BIT_S1 && foff < CONSERVATIVE_24BIT_S1) | |
10765 | { | |
10766 | /* Relax to the following instruction sequence | |
10767 | bltz rt, .L1 ; LONGCALL2/17_PCREL | |
10768 | jal symbol ; 25_PCREL/PTR_RES | |
10769 | .L1 */ | |
10770 | *insn_len = 4; | |
10771 | /* Convert instruction. */ | |
10772 | insn = INSN_JAL; | |
10773 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 10774 | |
1c8f6a4d KLC |
10775 | /* Convert relocations. */ |
10776 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), | |
10777 | R_NDS32_25_PCREL_RELA); | |
10778 | irel->r_info = | |
10779 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_LONGCALL5); | |
35c08157 | 10780 | |
1c8f6a4d KLC |
10781 | /* Set resolved relocation. */ |
10782 | cond_irel = | |
10783 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10784 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10785 | if (cond_irel == irelend) | |
10786 | { | |
695344c0 | 10787 | _bfd_error_handler (unrecognized_reloc_msg, abfd, |
2dcf00ce | 10788 | "R_NDS32_LONGCALL6", (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10789 | return FALSE; |
10790 | } | |
10791 | cond_irel->r_addend = 1; | |
35c08157 | 10792 | |
1c8f6a4d KLC |
10793 | cond_irel = |
10794 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10795 | R_NDS32_INSN16, irel->r_addend); | |
10796 | if (cond_irel != irelend) | |
10797 | cond_irel->r_info = | |
10798 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
10799 | } | |
10800 | return TRUE; | |
10801 | } | |
35c08157 | 10802 | |
1c8f6a4d | 10803 | /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */ |
35c08157 | 10804 | |
1c8f6a4d KLC |
10805 | static bfd_boolean |
10806 | nds32_elf_relax_longjump4 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10807 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10808 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
10809 | Elf_Internal_Shdr *symtab_hdr) | |
10810 | { | |
10811 | /* The pattern for LONGJUMP4. | |
10812 | sethi ta, hi20(symbol) ; LONGJUMP4/HI20 | |
10813 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
10814 | jr ta ; PTR_RES/INSN16/EMPTY */ | |
10815 | ||
10816 | bfd_vma laddr; | |
10817 | int seq_len; /* Original length of instruction sequence. */ | |
10818 | uint32_t insn; | |
10819 | Elf_Internal_Rela *hi_irel, *ptr_irel, *em_irel, *call_irel, *irelend; | |
1c8f6a4d | 10820 | bfd_signed_vma foff; |
35c08157 | 10821 | |
1c8f6a4d KLC |
10822 | irelend = internal_relocs + sec->reloc_count; |
10823 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
10824 | laddr = irel->r_offset; | |
10825 | *insn_len = seq_len; | |
35c08157 | 10826 | |
1c8f6a4d KLC |
10827 | /* Get the reloc for the address from which the register is |
10828 | being loaded. This reloc will tell us which function is | |
10829 | actually being called. */ | |
35c08157 | 10830 | |
1c8f6a4d KLC |
10831 | hi_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, |
10832 | R_NDS32_HI20_RELA, laddr); | |
35c08157 | 10833 | |
1c8f6a4d KLC |
10834 | if (hi_irel == irelend) |
10835 | { | |
695344c0 | 10836 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP4", |
2dcf00ce | 10837 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10838 | return FALSE; |
10839 | } | |
35c08157 | 10840 | |
1c8f6a4d | 10841 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10842 | foff = calculate_offset (abfd, sec, hi_irel, isymbuf, symtab_hdr); |
35c08157 | 10843 | |
fbaf61ad NC |
10844 | if (foff == 0 |
10845 | || foff >= CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
10846 | || foff < -CONSERVATIVE_24BIT_S1) |
10847 | return FALSE; | |
35c08157 | 10848 | |
1c8f6a4d KLC |
10849 | /* Convert it to "j label", it may be converted to j8 in the final |
10850 | pass of relaxation. Therefore, we do not consider this currently. */ | |
10851 | ptr_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10852 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
10853 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10854 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 10855 | |
1c8f6a4d KLC |
10856 | if (ptr_irel == irelend || em_irel == irelend) |
10857 | { | |
695344c0 | 10858 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP4", |
2dcf00ce | 10859 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10860 | return FALSE; |
10861 | } | |
35c08157 | 10862 | |
1c8f6a4d KLC |
10863 | em_irel->r_info = |
10864 | ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), R_NDS32_25_PCREL_RELA); | |
10865 | ptr_irel->r_addend = 1; | |
35c08157 | 10866 | |
1c8f6a4d KLC |
10867 | /* Write instruction. */ |
10868 | insn = INSN_J; | |
10869 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
35c08157 | 10870 | |
1c8f6a4d KLC |
10871 | /* Clear relocations. */ |
10872 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 10873 | |
1c8f6a4d KLC |
10874 | /* If there is function cse, HI20 can not remove now. */ |
10875 | call_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10876 | R_NDS32_LONGJUMP4, laddr); | |
10877 | if (call_irel == irelend) | |
10878 | { | |
10879 | *insn_len = 0; | |
10880 | hi_irel->r_info = | |
10881 | ELF32_R_INFO (ELF32_R_SYM (hi_irel->r_info), R_NDS32_NONE); | |
10882 | } | |
35c08157 | 10883 | |
1c8f6a4d KLC |
10884 | return TRUE; |
10885 | } | |
35c08157 | 10886 | |
1c8f6a4d | 10887 | /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */ |
35c08157 | 10888 | |
1c8f6a4d KLC |
10889 | static bfd_boolean |
10890 | nds32_elf_relax_longjump5 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
10891 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
10892 | int *seq_len, bfd_byte *contents, | |
10893 | Elf_Internal_Sym *isymbuf, | |
10894 | Elf_Internal_Shdr *symtab_hdr) | |
10895 | { | |
10896 | /* There are 2 variations for LONGJUMP5 | |
10897 | case 2-4; 1st insn convertible, 16-bit on. | |
10898 | bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16 | |
10899 | j label ; 25_PCREL/INSN16 | |
10900 | $1: | |
10901 | ||
10902 | case 4-4; 1st insn not convertible | |
10903 | bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16 | |
10904 | j label ; 25_PCREL/INSN16 | |
10905 | .L1: */ | |
10906 | ||
10907 | bfd_vma laddr; | |
10908 | Elf_Internal_Rela *cond_irel, *irelend; | |
1c8f6a4d KLC |
10909 | unsigned int i; |
10910 | bfd_signed_vma foff; | |
10911 | uint32_t insn, re_insn = 0; | |
10912 | uint16_t insn16, re_insn16 = 0; | |
10913 | unsigned long reloc; | |
35c08157 | 10914 | |
1c8f6a4d KLC |
10915 | enum elf_nds32_reloc_type checked_types[] = |
10916 | { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA, | |
10917 | R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 }; | |
35c08157 | 10918 | |
1c8f6a4d KLC |
10919 | irelend = internal_relocs + sec->reloc_count; |
10920 | laddr = irel->r_offset; | |
35c08157 | 10921 | |
1c8f6a4d KLC |
10922 | /* Get the reloc for the address from which the register is |
10923 | being loaded. This reloc will tell us which function is | |
10924 | actually being called. */ | |
35c08157 | 10925 | |
1c8f6a4d KLC |
10926 | cond_irel = |
10927 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10928 | R_NDS32_25_PCREL_RELA, irel->r_addend); | |
10929 | if (cond_irel == irelend) | |
10930 | { | |
695344c0 | 10931 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP5", |
2dcf00ce | 10932 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
10933 | return FALSE; |
10934 | } | |
35c08157 | 10935 | |
1c8f6a4d | 10936 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 10937 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 10938 | |
fbaf61ad NC |
10939 | if (foff == 0 |
10940 | || foff < -CONSERVATIVE_16BIT_S1 | |
1c8f6a4d KLC |
10941 | || foff >= CONSERVATIVE_16BIT_S1) |
10942 | return FALSE; | |
35c08157 | 10943 | |
1c8f6a4d KLC |
10944 | /* Get the all corresponding instructions. */ |
10945 | insn = bfd_getb32 (contents + laddr); | |
10946 | /* Check instruction size. */ | |
10947 | if (insn & 0x80000000) | |
10948 | { | |
10949 | *seq_len = 0; | |
10950 | insn16 = insn >> 16; | |
10951 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
10952 | } | |
10953 | else | |
10954 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
35c08157 | 10955 | |
1c8f6a4d KLC |
10956 | if (N32_OP6 (re_insn) == N32_OP6_BR1 |
10957 | && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1)) | |
10958 | { | |
10959 | /* beqs label ; 15_PCREL. */ | |
10960 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
10961 | reloc = R_NDS32_15_PCREL_RELA; | |
10962 | } | |
10963 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
10964 | && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
10965 | { | |
10966 | /* beqz label ; 17_PCREL. */ | |
10967 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
10968 | reloc = R_NDS32_17_PCREL_RELA; | |
10969 | } | |
10970 | else if ( N32_OP6 (re_insn) == N32_OP6_BR3 | |
10971 | && foff >= -CONSERVATIVE_8BIT_S1 && foff < CONSERVATIVE_8BIT_S1) | |
10972 | { | |
10973 | /* beqc label ; 9_PCREL. */ | |
10974 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); | |
10975 | reloc = R_NDS32_WORD_9_PCREL_RELA; | |
10976 | } | |
10977 | else | |
10978 | return FALSE; | |
35c08157 | 10979 | |
1c8f6a4d KLC |
10980 | /* Set all relocations. */ |
10981 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), reloc); | |
35c08157 | 10982 | |
1c8f6a4d KLC |
10983 | /* Clean relocations. */ |
10984 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
fbaf61ad | 10985 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
10986 | { |
10987 | cond_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
10988 | checked_types[i], laddr); | |
10989 | if (cond_irel != irelend) | |
10990 | { | |
10991 | if (*seq_len == 0 | |
10992 | && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16)) | |
35c08157 | 10993 | { |
1c8f6a4d KLC |
10994 | /* If the branch instruction is 2 byte, it cannot remove |
10995 | directly. Only convert it to nop16 and remove it after | |
10996 | checking alignment issue. */ | |
10997 | insn16 = NDS32_NOP16; | |
10998 | bfd_putb16 (insn16, contents + laddr); | |
10999 | cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
35c08157 KLC |
11000 | } |
11001 | else | |
1c8f6a4d KLC |
11002 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), |
11003 | R_NDS32_NONE); | |
35c08157 | 11004 | } |
1c8f6a4d KLC |
11005 | } |
11006 | *insn_len = 0; | |
35c08157 | 11007 | |
1c8f6a4d KLC |
11008 | return TRUE; |
11009 | } | |
35c08157 | 11010 | |
1c8f6a4d | 11011 | /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */ |
35c08157 | 11012 | |
1c8f6a4d KLC |
11013 | static bfd_boolean |
11014 | nds32_elf_relax_longjump6 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
11015 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11016 | int *seq_len, bfd_byte *contents, | |
11017 | Elf_Internal_Sym *isymbuf, | |
11018 | Elf_Internal_Shdr *symtab_hdr) | |
11019 | { | |
11020 | /* There are 5 variations for LONGJUMP6 | |
11021 | case : 2-4-4-4; 1st insn convertible, 16-bit on. | |
11022 | bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16 | |
11023 | sethi ta, hi20(symbol) ; HI20/PTR | |
11024 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
11025 | jr ta ; PTR_RES/INSN16/EMPTY | |
11026 | .L1: | |
11027 | ||
11028 | case : 4-4-4-4; 1st insn not convertible, 16-bit on. | |
11029 | bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16 | |
11030 | sethi ta, hi20(symbol) ; HI20/PTR | |
11031 | ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR | |
11032 | jr ta ; PTR_RES/INSN16/EMPTY | |
11033 | .L1: */ | |
11034 | ||
11035 | enum elf_nds32_reloc_type checked_types[] = | |
11036 | { R_NDS32_17_PCREL_RELA, R_NDS32_15_PCREL_RELA, | |
11037 | R_NDS32_9_PCREL_RELA, R_NDS32_INSN16 }; | |
11038 | ||
11039 | int reloc_off = 0, cond_removed = 0; | |
11040 | bfd_vma laddr; | |
11041 | Elf_Internal_Rela *cond_irel, *em_irel, *irelend, *insn_irel; | |
1c8f6a4d KLC |
11042 | unsigned int i; |
11043 | bfd_signed_vma foff; | |
11044 | uint32_t insn, re_insn = 0; | |
11045 | uint16_t insn16, re_insn16 = 0; | |
11046 | unsigned long reloc; | |
35c08157 | 11047 | |
1c8f6a4d KLC |
11048 | irelend = internal_relocs + sec->reloc_count; |
11049 | laddr = irel->r_offset; | |
35c08157 | 11050 | |
1c8f6a4d KLC |
11051 | /* Get the reloc for the address from which the register is |
11052 | being loaded. This reloc will tell us which function is | |
11053 | actually being called. */ | |
11054 | em_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11055 | R_NDS32_EMPTY, irel->r_addend); | |
35c08157 | 11056 | |
1c8f6a4d KLC |
11057 | if (em_irel == irelend) |
11058 | { | |
695344c0 | 11059 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP6", |
2dcf00ce | 11060 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
11061 | return FALSE; |
11062 | } | |
35c08157 | 11063 | |
1c8f6a4d | 11064 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 11065 | foff = calculate_offset (abfd, sec, em_irel, isymbuf, symtab_hdr); |
35c08157 | 11066 | |
fbaf61ad NC |
11067 | if (foff == 0 |
11068 | || foff < -CONSERVATIVE_24BIT_S1 | |
1c8f6a4d KLC |
11069 | || foff >= CONSERVATIVE_24BIT_S1) |
11070 | return FALSE; | |
35c08157 | 11071 | |
1c8f6a4d KLC |
11072 | insn = bfd_getb32 (contents + laddr); |
11073 | /* Check instruction size. */ | |
11074 | if (insn & 0x80000000) | |
11075 | { | |
11076 | *seq_len = 0; | |
11077 | insn16 = insn >> 16; | |
11078 | nds32_elf_convert_branch (insn16, 0, &re_insn16, &re_insn); | |
11079 | } | |
11080 | else | |
11081 | nds32_elf_convert_branch (0, insn, &re_insn16, &re_insn); | |
35c08157 | 11082 | |
1c8f6a4d KLC |
11083 | /* For simplicity of coding, we are going to modify the section |
11084 | contents, the section relocs, and the BFD symbol table. We | |
11085 | must tell the rest of the code not to free up this | |
11086 | information. It would be possible to instead create a table | |
11087 | of changes which have to be made, as is done in coff-mips.c; | |
11088 | that would be more work, but would require less memory when | |
11089 | the linker is run. */ | |
35c08157 | 11090 | |
1c8f6a4d KLC |
11091 | if (N32_OP6 (re_insn) == N32_OP6_BR1 |
11092 | && (foff >= -CONSERVATIVE_14BIT_S1 && foff < CONSERVATIVE_14BIT_S1)) | |
11093 | { | |
fbaf61ad | 11094 | /* beqs label ; 15_PCREL. */ |
1c8f6a4d KLC |
11095 | bfd_putb32 (re_insn, contents + em_irel->r_offset); |
11096 | reloc = R_NDS32_15_PCREL_RELA; | |
11097 | cond_removed = 1; | |
11098 | } | |
11099 | else if (N32_OP6 (re_insn) == N32_OP6_BR2 | |
11100 | && foff >= -CONSERVATIVE_16BIT_S1 && foff < CONSERVATIVE_16BIT_S1) | |
11101 | { | |
fbaf61ad | 11102 | /* beqz label ; 17_PCREL. */ |
1c8f6a4d KLC |
11103 | bfd_putb32 (re_insn, contents + em_irel->r_offset); |
11104 | reloc = R_NDS32_17_PCREL_RELA; | |
11105 | cond_removed = 1; | |
11106 | } | |
11107 | else if (foff >= -CONSERVATIVE_24BIT_S1 - reloc_off | |
11108 | && foff < CONSERVATIVE_24BIT_S1 - reloc_off) | |
11109 | { | |
11110 | /* Relax to one of the following 2 variations | |
35c08157 | 11111 | |
1c8f6a4d KLC |
11112 | case 2-4; 1st insn convertible, 16-bit on. |
11113 | bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16 | |
11114 | j label ; 25_PCREL/INSN16 | |
11115 | $1: | |
35c08157 | 11116 | |
1c8f6a4d KLC |
11117 | case 4-4; 1st insn not convertible |
11118 | bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16 | |
11119 | j label ; 25_PCREL/INSN16 | |
11120 | .L1: */ | |
35c08157 | 11121 | |
1c8f6a4d KLC |
11122 | /* Use j label as second instruction. */ |
11123 | insn = INSN_J; | |
11124 | reloc = R_NDS32_25_PCREL_RELA; | |
11125 | bfd_putb32 (insn, contents + em_irel->r_offset); | |
11126 | } | |
11127 | else | |
11128 | return FALSE; | |
35c08157 | 11129 | |
1c8f6a4d KLC |
11130 | /* Set all relocations. */ |
11131 | em_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (em_irel->r_info), reloc); | |
35c08157 | 11132 | |
1c8f6a4d KLC |
11133 | cond_irel = |
11134 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11135 | R_NDS32_PTR_RESOLVED, em_irel->r_offset); | |
11136 | cond_irel->r_addend = 1; | |
35c08157 | 11137 | |
1c8f6a4d KLC |
11138 | /* Use INSN16 of first branch instruction to distinguish if keeping |
11139 | INSN16 of final instruction or not. */ | |
11140 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11141 | R_NDS32_INSN16, irel->r_offset); | |
11142 | if (insn_irel == irelend) | |
11143 | { | |
11144 | /* Clean the final INSN16. */ | |
11145 | insn_irel = | |
11146 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11147 | R_NDS32_INSN16, em_irel->r_offset); | |
11148 | insn_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11149 | R_NDS32_NONE); | |
11150 | } | |
11151 | ||
11152 | if (cond_removed == 1) | |
11153 | { | |
11154 | *insn_len = 0; | |
11155 | ||
11156 | /* Clear relocations. */ | |
11157 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 11158 | |
fbaf61ad | 11159 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
11160 | { |
11161 | cond_irel = | |
11162 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11163 | checked_types[i], laddr); | |
11164 | if (cond_irel != irelend) | |
35c08157 | 11165 | { |
1c8f6a4d KLC |
11166 | if (*seq_len == 0 |
11167 | && (ELF32_R_TYPE (cond_irel->r_info) == R_NDS32_INSN16)) | |
11168 | { | |
11169 | /* If the branch instruction is 2 byte, it cannot remove | |
11170 | directly. Only convert it to nop16 and remove it after | |
11171 | checking alignment issue. */ | |
11172 | insn16 = NDS32_NOP16; | |
11173 | bfd_putb16 (insn16, contents + laddr); | |
11174 | cond_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
11175 | } | |
11176 | else | |
11177 | cond_irel->r_info = | |
11178 | ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), R_NDS32_NONE); | |
35c08157 | 11179 | } |
35c08157 | 11180 | } |
1c8f6a4d KLC |
11181 | } |
11182 | else | |
11183 | { | |
11184 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
11185 | R_NDS32_LONGJUMP5); | |
11186 | } | |
35c08157 | 11187 | |
1c8f6a4d KLC |
11188 | return TRUE; |
11189 | } | |
35c08157 | 11190 | |
1c8f6a4d | 11191 | /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */ |
35c08157 | 11192 | |
1c8f6a4d KLC |
11193 | static bfd_boolean |
11194 | nds32_elf_relax_longjump7 (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
11195 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11196 | int *seq_len, bfd_byte *contents, | |
11197 | Elf_Internal_Sym *isymbuf, | |
11198 | Elf_Internal_Shdr *symtab_hdr) | |
11199 | { | |
11200 | /* There are 2 variations for LONGJUMP5 | |
11201 | case 2-4; 1st insn convertible, 16-bit on. | |
11202 | movi55 ta, imm11 ; LONGJUMP7/INSN16 | |
11203 | beq rt, ta, label ; 15_PCREL | |
11204 | ||
11205 | case 4-4; 1st insn not convertible | |
11206 | movi55 ta, imm11 ; LONGJUMP7/INSN16 | |
11207 | beq rt, ta, label ; 15_PCREL */ | |
11208 | ||
11209 | bfd_vma laddr; | |
11210 | Elf_Internal_Rela *cond_irel, *irelend, *insn_irel; | |
1c8f6a4d KLC |
11211 | bfd_signed_vma foff; |
11212 | uint32_t insn, re_insn = 0; | |
11213 | uint16_t insn16; | |
11214 | uint32_t imm11; | |
35c08157 | 11215 | |
1c8f6a4d KLC |
11216 | irelend = internal_relocs + sec->reloc_count; |
11217 | laddr = irel->r_offset; | |
35c08157 | 11218 | |
1c8f6a4d KLC |
11219 | /* Get the reloc for the address from which the register is |
11220 | being loaded. This reloc will tell us which function is | |
11221 | actually being called. */ | |
35c08157 | 11222 | |
1c8f6a4d KLC |
11223 | cond_irel = |
11224 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11225 | R_NDS32_15_PCREL_RELA, irel->r_addend); | |
11226 | if (cond_irel == irelend) | |
11227 | { | |
695344c0 | 11228 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LONGJUMP7", |
2dcf00ce | 11229 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
11230 | return FALSE; |
11231 | } | |
35c08157 | 11232 | |
1c8f6a4d | 11233 | /* Get the value of the symbol referred to by the reloc. */ |
fbaf61ad | 11234 | foff = calculate_offset (abfd, sec, cond_irel, isymbuf, symtab_hdr); |
35c08157 | 11235 | |
fbaf61ad NC |
11236 | if (foff == 0 |
11237 | || foff < -CONSERVATIVE_8BIT_S1 | |
1c8f6a4d KLC |
11238 | || foff >= CONSERVATIVE_8BIT_S1) |
11239 | return FALSE; | |
35c08157 | 11240 | |
1c8f6a4d KLC |
11241 | /* Get the first instruction for its size. */ |
11242 | insn = bfd_getb32 (contents + laddr); | |
11243 | if (insn & 0x80000000) | |
11244 | { | |
11245 | *seq_len = 0; | |
11246 | /* Get the immediate from movi55. */ | |
11247 | imm11 = N16_IMM5S (insn >> 16); | |
11248 | } | |
11249 | else | |
11250 | { | |
11251 | /* Get the immediate from movi. */ | |
11252 | imm11 = N32_IMM20S (insn); | |
35c08157 KLC |
11253 | } |
11254 | ||
1c8f6a4d KLC |
11255 | /* Get the branch instruction. */ |
11256 | insn = bfd_getb32 (contents + irel->r_addend); | |
11257 | /* Convert instruction to BR3. */ | |
11258 | if ((insn >> 14) & 0x1) | |
11259 | re_insn = N32_BR3 (BNEC, N32_RT5 (insn), imm11, 0); | |
11260 | else | |
11261 | re_insn = N32_BR3 (BEQC, N32_RT5 (insn), imm11, 0); | |
35c08157 | 11262 | |
1c8f6a4d | 11263 | bfd_putb32 (re_insn, contents + cond_irel->r_offset); |
35c08157 | 11264 | |
1c8f6a4d KLC |
11265 | /* Set all relocations. */ |
11266 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11267 | R_NDS32_WORD_9_PCREL_RELA); | |
11268 | ||
11269 | /* Clean relocations. */ | |
11270 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
11271 | insn_irel = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11272 | R_NDS32_INSN16, irel->r_offset); | |
11273 | if (insn_irel != irelend) | |
11274 | { | |
11275 | if (*seq_len == 0) | |
35c08157 | 11276 | { |
1c8f6a4d KLC |
11277 | /* If the first insntruction is 16bit, convert it to nop16. */ |
11278 | insn16 = NDS32_NOP16; | |
11279 | bfd_putb16 (insn16, contents + laddr); | |
11280 | insn_irel->r_addend = R_NDS32_INSN16_CONVERT_FLAG; | |
35c08157 | 11281 | } |
1c8f6a4d KLC |
11282 | else |
11283 | cond_irel->r_info = ELF32_R_INFO (ELF32_R_SYM (cond_irel->r_info), | |
11284 | R_NDS32_NONE); | |
35c08157 | 11285 | } |
1c8f6a4d | 11286 | *insn_len = 0; |
35c08157 | 11287 | |
1c8f6a4d KLC |
11288 | return TRUE; |
11289 | } | |
35c08157 | 11290 | |
fbaf61ad NC |
11291 | /* We figure out and reassign the best gp value in nds32_elf_final_sda_base |
11292 | for each relax round. But the gp may changed dramatically and then cause | |
11293 | the truncated to fit errors for the the converted gp instructions. | |
11294 | Therefore, we must reserve the minimum but safe enough size to prevent it. */ | |
11295 | ||
11296 | static bfd_boolean | |
11297 | nds32_elf_relax_guard (bfd_vma *access_addr, bfd_vma local_sda, asection *sec, | |
11298 | Elf_Internal_Rela *irel, bfd_boolean *again, | |
11299 | bfd_boolean init, | |
11300 | struct elf_nds32_link_hash_table *table, | |
11301 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr) | |
11302 | ||
11303 | { | |
11304 | int offset_to_gp; | |
11305 | static bfd_boolean sec_pass = FALSE; | |
11306 | static asection *first_sec = NULL, *sym_sec; | |
11307 | /* Record the number of instructions which may be removed. */ | |
11308 | static int count = 0, record_count; | |
11309 | Elf_Internal_Sym *isym; | |
11310 | struct elf_link_hash_entry *h = NULL; | |
11311 | int indx; | |
11312 | unsigned long r_symndx; | |
11313 | bfd *abfd = sec->owner; | |
11314 | static bfd_vma record_sda = 0; | |
11315 | int sda_offset = 0; | |
11316 | ||
11317 | /* Force doing relaxation when hyper-relax is high. */ | |
11318 | if (table->hyper_relax == 2) | |
11319 | return TRUE; | |
11320 | ||
11321 | /* Do not relax the load/store patterns for the first | |
11322 | relax round. */ | |
11323 | if (init) | |
11324 | { | |
11325 | if (!first_sec) | |
11326 | first_sec = sec; | |
11327 | else if (first_sec == sec) | |
11328 | { | |
11329 | record_count = count; | |
11330 | count = 0; | |
11331 | sec_pass = TRUE; | |
11332 | } | |
11333 | ||
11334 | if (!sec_pass) | |
11335 | *again = TRUE; | |
11336 | ||
11337 | return TRUE; | |
11338 | } | |
11339 | ||
11340 | /* Generally, _SDA_BASE_ is fixed or smaller. But the large | |
11341 | DATA_SEGMENT_ALIGN size in the linker script may make it | |
11342 | get even bigger. */ | |
11343 | if (record_sda == 0) | |
11344 | record_sda = local_sda; | |
11345 | else if (local_sda > record_sda) | |
11346 | sda_offset = local_sda - record_sda; | |
11347 | ||
11348 | /* Assume the instruction will be removed in the best case. */ | |
11349 | count++; | |
11350 | ||
11351 | /* We record the offset to gp for each symbol, and then check | |
11352 | if it is changed dramatically after relaxing. | |
11353 | (global symbol): elf32_nds32_hash_entry (h)->offset_to_gp | |
11354 | (local symbol) : elf32_nds32_local_gp_offset (abfd)[r_symndx]. */ | |
11355 | r_symndx = ELF32_R_SYM (irel->r_info); | |
11356 | if (r_symndx >= symtab_hdr->sh_info) | |
11357 | { | |
11358 | /* Global symbols. */ | |
11359 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
11360 | h = elf_sym_hashes (abfd)[indx]; | |
11361 | sym_sec = h->root.u.def.section; | |
11362 | if (NDS32_GUARD_SEC_P (sym_sec->flags) | |
11363 | || bfd_is_abs_section (sym_sec)) | |
11364 | { | |
11365 | /* Forbid doing relaxation when hyper-relax is low. */ | |
11366 | if (table->hyper_relax == 0) | |
11367 | return FALSE; | |
11368 | ||
11369 | offset_to_gp = *access_addr - local_sda; | |
11370 | if (elf32_nds32_hash_entry (h)->offset_to_gp == 0) | |
11371 | elf32_nds32_hash_entry (h)->offset_to_gp = offset_to_gp; | |
11372 | else if (abs (elf32_nds32_hash_entry (h)->offset_to_gp) | |
11373 | < abs (offset_to_gp) - sda_offset) | |
11374 | { | |
11375 | /* This may cause the error, so we reserve the | |
11376 | safe enough size for relaxing. */ | |
11377 | if (*access_addr >= local_sda) | |
11378 | *access_addr += (record_count * 4); | |
11379 | else | |
11380 | *access_addr -= (record_count * 4); | |
11381 | } | |
11382 | return sec_pass; | |
11383 | } | |
11384 | } | |
11385 | else | |
11386 | { | |
11387 | /* Local symbols. */ | |
11388 | if (!elf32_nds32_allocate_local_sym_info (abfd)) | |
11389 | return FALSE; | |
11390 | isym = isymbuf + r_symndx; | |
11391 | ||
11392 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
11393 | if (NDS32_GUARD_SEC_P (sym_sec->flags)) | |
11394 | { | |
11395 | /* Forbid doing relaxation when hyper-relax is low. */ | |
11396 | if (table->hyper_relax == 0) | |
11397 | return FALSE; | |
11398 | ||
11399 | offset_to_gp = *access_addr - local_sda; | |
11400 | if (elf32_nds32_local_gp_offset (abfd)[r_symndx] == 0) | |
11401 | elf32_nds32_local_gp_offset (abfd)[r_symndx] = offset_to_gp; | |
11402 | else if (abs (elf32_nds32_local_gp_offset (abfd)[r_symndx]) | |
11403 | < abs (offset_to_gp) - sda_offset) | |
11404 | { | |
11405 | /* This may cause the error, so we reserve the | |
11406 | safe enough size for relaxing. */ | |
11407 | if (*access_addr >= local_sda) | |
11408 | *access_addr += (record_count * 4); | |
11409 | else | |
11410 | *access_addr -= (record_count * 4); | |
11411 | } | |
11412 | return sec_pass; | |
11413 | } | |
11414 | } | |
11415 | ||
11416 | return TRUE; | |
11417 | } | |
11418 | ||
1c8f6a4d | 11419 | #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f) |
35c08157 | 11420 | |
1c8f6a4d | 11421 | /* Relax LOADSTORE relocation for nds32_elf_relax_section. */ |
35c08157 | 11422 | |
1c8f6a4d KLC |
11423 | static bfd_boolean |
11424 | nds32_elf_relax_loadstore (struct bfd_link_info *link_info, bfd *abfd, | |
11425 | asection *sec, Elf_Internal_Rela *irel, | |
11426 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11427 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
fbaf61ad NC |
11428 | Elf_Internal_Shdr *symtab_hdr, int load_store_relax, |
11429 | struct elf_nds32_link_hash_table *table) | |
1c8f6a4d | 11430 | { |
6cae483a AM |
11431 | int eliminate_sethi = 0, range_type; |
11432 | unsigned int i; | |
1c8f6a4d KLC |
11433 | bfd_vma local_sda, laddr; |
11434 | int seq_len; /* Original length of instruction sequence. */ | |
11435 | uint32_t insn; | |
11436 | Elf_Internal_Rela *hi_irelfn = NULL, *irelend; | |
11437 | bfd_vma access_addr = 0; | |
11438 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
fbaf61ad NC |
11439 | struct elf_link_hash_entry *h = NULL; |
11440 | int indx; | |
1c8f6a4d KLC |
11441 | enum elf_nds32_reloc_type checked_types[] = |
11442 | { R_NDS32_HI20_RELA, R_NDS32_GOT_HI20, | |
11443 | R_NDS32_GOTPC_HI20, R_NDS32_GOTOFF_HI20, | |
11444 | R_NDS32_PLTREL_HI20, R_NDS32_PLT_GOTREL_HI20, | |
11445 | R_NDS32_TLS_LE_HI20 | |
11446 | }; | |
35c08157 | 11447 | |
1c8f6a4d KLC |
11448 | irelend = internal_relocs + sec->reloc_count; |
11449 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
11450 | laddr = irel->r_offset; | |
11451 | *insn_len = seq_len; | |
35c08157 | 11452 | |
1c8f6a4d | 11453 | /* Get the high part relocation. */ |
6cae483a | 11454 | for (i = 0; i < ARRAY_SIZE (checked_types); i++) |
1c8f6a4d KLC |
11455 | { |
11456 | hi_irelfn = find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11457 | checked_types[i], laddr); | |
11458 | if (hi_irelfn != irelend) | |
11459 | break; | |
11460 | } | |
35c08157 | 11461 | |
1c8f6a4d KLC |
11462 | if (hi_irelfn == irelend) |
11463 | { | |
fbaf61ad NC |
11464 | /* Not R_NDS32_HI20_RELA. */ |
11465 | if (i != 0) | |
11466 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LOADSTORE", | |
11467 | (uint64_t) irel->r_offset); | |
11468 | return FALSE; | |
1c8f6a4d | 11469 | } |
35c08157 | 11470 | |
1c8f6a4d KLC |
11471 | range_type = GET_LOADSTORE_RANGE (irel->r_addend); |
11472 | nds32_elf_final_sda_base (sec->output_section->owner, | |
11473 | link_info, &local_sda, FALSE); | |
35c08157 | 11474 | |
1c8f6a4d KLC |
11475 | switch (ELF32_R_TYPE (hi_irelfn->r_info)) |
11476 | { | |
11477 | case R_NDS32_HI20_RELA: | |
11478 | insn = bfd_getb32 (contents + laddr); | |
11479 | access_addr = | |
11480 | calculate_memory_address (abfd, hi_irelfn, isymbuf, symtab_hdr); | |
11481 | ||
fbaf61ad | 11482 | if (ELF32_R_SYM (hi_irelfn->r_info) >= symtab_hdr->sh_info) |
1c8f6a4d | 11483 | { |
fbaf61ad NC |
11484 | indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; |
11485 | h = elf_sym_hashes (abfd)[indx]; | |
11486 | } | |
35c08157 | 11487 | |
fbaf61ad NC |
11488 | /* Try movi. */ |
11489 | if (range_type == NDS32_LOADSTORE_IMM | |
11490 | && access_addr < CONSERVATIVE_20BIT | |
11491 | && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0))) | |
11492 | { | |
11493 | eliminate_sethi = 1; | |
11494 | break; | |
11495 | } | |
1c8f6a4d | 11496 | |
fbaf61ad NC |
11497 | if (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0) |
11498 | { | |
11499 | eliminate_sethi = 1; | |
11500 | break; | |
1c8f6a4d | 11501 | } |
fbaf61ad NC |
11502 | else if (!nds32_elf_relax_guard (&access_addr, local_sda, sec, hi_irelfn, |
11503 | NULL, FALSE, table, isymbuf, symtab_hdr)) | |
11504 | return FALSE; | |
1c8f6a4d KLC |
11505 | |
11506 | if (!load_store_relax) | |
11507 | return FALSE; | |
11508 | ||
11509 | /* Case for set gp register. */ | |
11510 | if (N32_RT5 (insn) == REG_GP) | |
fbaf61ad | 11511 | return FALSE; |
1c8f6a4d KLC |
11512 | |
11513 | if (range_type == NDS32_LOADSTORE_FLOAT_S | |
6cef73f9 | 11514 | || range_type == NDS32_LOADSTORE_FLOAT_D) |
1c8f6a4d KLC |
11515 | { |
11516 | range_l = sdata_range[0][0]; | |
11517 | range_h = sdata_range[0][1]; | |
11518 | } | |
11519 | else | |
11520 | { | |
11521 | range_l = sdata_range[1][0]; | |
11522 | range_h = sdata_range[1][1]; | |
11523 | } | |
11524 | break; | |
11525 | ||
1c8f6a4d KLC |
11526 | default: |
11527 | return FALSE; | |
11528 | } | |
11529 | ||
11530 | /* Delete sethi instruction. */ | |
11531 | if (eliminate_sethi == 1 | |
11532 | || (local_sda <= access_addr && (access_addr - local_sda) < range_h) | |
11533 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l)) | |
11534 | { | |
11535 | hi_irelfn->r_info = | |
11536 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_NDS32_NONE); | |
11537 | irel->r_info = | |
11538 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
11539 | *insn_len = 0; | |
fbaf61ad | 11540 | return TRUE; |
1c8f6a4d | 11541 | } |
fbaf61ad NC |
11542 | |
11543 | return FALSE; | |
1c8f6a4d KLC |
11544 | } |
11545 | ||
11546 | /* Relax LO12 relocation for nds32_elf_relax_section. */ | |
11547 | ||
11548 | static void | |
11549 | nds32_elf_relax_lo12 (struct bfd_link_info *link_info, bfd *abfd, | |
11550 | asection *sec, Elf_Internal_Rela *irel, | |
11551 | Elf_Internal_Rela *internal_relocs, bfd_byte *contents, | |
fbaf61ad NC |
11552 | Elf_Internal_Sym *isymbuf, Elf_Internal_Shdr *symtab_hdr, |
11553 | struct elf_nds32_link_hash_table *table) | |
1c8f6a4d KLC |
11554 | { |
11555 | uint32_t insn; | |
11556 | bfd_vma local_sda, laddr; | |
11557 | unsigned long reloc; | |
11558 | bfd_vma access_addr; | |
11559 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
11560 | Elf_Internal_Rela *irelfn = NULL, *irelend; | |
11561 | struct elf_link_hash_entry *h = NULL; | |
11562 | int indx; | |
11563 | ||
11564 | /* For SDA base relative relaxation. */ | |
11565 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
11566 | &local_sda, FALSE); | |
11567 | ||
11568 | irelend = internal_relocs + sec->reloc_count; | |
11569 | laddr = irel->r_offset; | |
11570 | insn = bfd_getb32 (contents + laddr); | |
11571 | ||
11572 | if (!is_sda_access_insn (insn) && N32_OP6 (insn) != N32_OP6_ORI) | |
11573 | return; | |
11574 | ||
11575 | access_addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
11576 | ||
11577 | if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info) | |
11578 | { | |
11579 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
11580 | h = elf_sym_hashes (abfd)[indx]; | |
11581 | } | |
11582 | ||
fbaf61ad | 11583 | /* Try movi. */ |
1c8f6a4d KLC |
11584 | if (N32_OP6 (insn) == N32_OP6_ORI && access_addr < CONSERVATIVE_20BIT |
11585 | && (!h || (h && strcmp (h->root.root.string, FP_BASE_NAME) != 0))) | |
11586 | { | |
11587 | reloc = R_NDS32_20_RELA; | |
11588 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11589 | insn = N32_TYPE1 (MOVI, N32_RT5 (insn), 0); | |
11590 | bfd_putb32 (insn, contents + laddr); | |
11591 | } | |
1c8f6a4d KLC |
11592 | else |
11593 | { | |
fbaf61ad NC |
11594 | if (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0) |
11595 | { | |
11596 | /* Fall through. */ | |
11597 | } | |
11598 | else if (!nds32_elf_relax_guard (&access_addr, local_sda, sec, irel, NULL, | |
11599 | FALSE, table, isymbuf, symtab_hdr)) | |
11600 | return; | |
11601 | ||
1c8f6a4d KLC |
11602 | range_l = sdata_range[1][0]; |
11603 | range_h = sdata_range[1][1]; | |
11604 | switch (ELF32_R_TYPE (irel->r_info)) | |
11605 | { | |
11606 | case R_NDS32_LO12S0_RELA: | |
11607 | reloc = R_NDS32_SDA19S0_RELA; | |
11608 | break; | |
11609 | case R_NDS32_LO12S1_RELA: | |
11610 | reloc = R_NDS32_SDA18S1_RELA; | |
11611 | break; | |
11612 | case R_NDS32_LO12S2_RELA: | |
11613 | reloc = R_NDS32_SDA17S2_RELA; | |
11614 | break; | |
11615 | case R_NDS32_LO12S2_DP_RELA: | |
11616 | range_l = sdata_range[0][0]; | |
11617 | range_h = sdata_range[0][1]; | |
11618 | reloc = R_NDS32_SDA12S2_DP_RELA; | |
11619 | break; | |
11620 | case R_NDS32_LO12S2_SP_RELA: | |
11621 | range_l = sdata_range[0][0]; | |
11622 | range_h = sdata_range[0][1]; | |
11623 | reloc = R_NDS32_SDA12S2_SP_RELA; | |
11624 | break; | |
11625 | default: | |
11626 | return; | |
11627 | } | |
11628 | ||
11629 | /* There are range_h and range_l because linker has to promise | |
11630 | all sections move cross one page together. */ | |
11631 | if ((local_sda <= access_addr && (access_addr - local_sda) < range_h) | |
fbaf61ad NC |
11632 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l) |
11633 | || (h && strcmp (h->root.root.string, FP_BASE_NAME) == 0)) | |
1c8f6a4d KLC |
11634 | { |
11635 | if (N32_OP6 (insn) == N32_OP6_ORI && N32_RT5 (insn) == REG_GP) | |
35c08157 | 11636 | { |
1c8f6a4d KLC |
11637 | /* Maybe we should add R_NDS32_INSN16 reloc type here |
11638 | or manually do some optimization. sethi can't be | |
11639 | eliminated when updating $gp so the relative ori | |
11640 | needs to be preserved. */ | |
11641 | return; | |
35c08157 | 11642 | } |
1c8f6a4d KLC |
11643 | if (!turn_insn_to_sda_access (insn, ELF32_R_TYPE (irel->r_info), |
11644 | &insn)) | |
11645 | return; | |
11646 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11647 | bfd_putb32 (insn, contents + laddr); | |
11648 | ||
11649 | irelfn = find_relocs_at_address (irel, internal_relocs, irelend, | |
11650 | R_NDS32_INSN16); | |
11651 | /* SDA17 must keep INSN16 for converting fp_as_gp. */ | |
11652 | if (irelfn != irelend && reloc != R_NDS32_SDA17S2_RELA) | |
11653 | irelfn->r_info = | |
11654 | ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_NDS32_NONE); | |
11655 | ||
35c08157 | 11656 | } |
1c8f6a4d KLC |
11657 | } |
11658 | return; | |
11659 | } | |
35c08157 | 11660 | |
1c8f6a4d | 11661 | /* Relax PTR relocation for nds32_elf_relax_section. */ |
35c08157 | 11662 | |
1c8f6a4d KLC |
11663 | static bfd_boolean |
11664 | nds32_elf_relax_ptr (bfd *abfd, asection *sec, Elf_Internal_Rela *irel, | |
11665 | Elf_Internal_Rela *internal_relocs, int *insn_len, | |
11666 | int *seq_len, bfd_byte *contents) | |
11667 | { | |
11668 | Elf_Internal_Rela *ptr_irel, *irelend, *count_irel, *re_irel; | |
35c08157 | 11669 | |
1c8f6a4d | 11670 | irelend = internal_relocs + sec->reloc_count; |
35c08157 | 11671 | |
1c8f6a4d KLC |
11672 | re_irel = |
11673 | find_relocs_at_address_addr (irel, internal_relocs, irelend, | |
11674 | R_NDS32_PTR_RESOLVED, irel->r_addend); | |
35c08157 | 11675 | |
1c8f6a4d KLC |
11676 | if (re_irel == irelend) |
11677 | { | |
695344c0 | 11678 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_PTR", |
2dcf00ce | 11679 | (uint64_t) irel->r_offset); |
1c8f6a4d KLC |
11680 | return FALSE; |
11681 | } | |
35c08157 | 11682 | |
1c8f6a4d KLC |
11683 | if (re_irel->r_addend != 1) |
11684 | return FALSE; | |
35c08157 | 11685 | |
1c8f6a4d KLC |
11686 | /* Pointed target is relaxed and no longer needs this void *, |
11687 | change the type to NONE. */ | |
11688 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
35c08157 | 11689 | |
1c8f6a4d KLC |
11690 | /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does |
11691 | not exist, it means only count 1 and remove it directly. */ | |
11692 | /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */ | |
11693 | count_irel = find_relocs_at_address (irel, internal_relocs, irelend, | |
11694 | R_NDS32_PTR_COUNT); | |
11695 | ptr_irel = find_relocs_at_address (irel, internal_relocs, irelend, | |
11696 | R_NDS32_PTR); | |
11697 | if (count_irel != irelend) | |
11698 | { | |
11699 | if (--count_irel->r_addend > 0) | |
11700 | return FALSE; | |
11701 | } | |
11702 | ||
11703 | if (ptr_irel != irelend) | |
11704 | return FALSE; | |
11705 | ||
11706 | /* If the PTR_COUNT is already 0, remove current instruction. */ | |
11707 | *seq_len = nds32_elf_insn_size (abfd, contents, irel->r_offset); | |
11708 | *insn_len = 0; | |
11709 | return TRUE; | |
11710 | } | |
11711 | ||
fbaf61ad | 11712 | /* Relax LWC relocation for nds32_elf_relax_section. */ |
1c8f6a4d KLC |
11713 | |
11714 | static void | |
fbaf61ad NC |
11715 | nds32_elf_relax_flsi (struct bfd_link_info *link_info, bfd *abfd, |
11716 | asection *sec, Elf_Internal_Rela *irel, | |
11717 | Elf_Internal_Rela *internal_relocs, | |
11718 | bfd_byte *contents, Elf_Internal_Sym *isymbuf, | |
11719 | Elf_Internal_Shdr *symtab_hdr, bfd_boolean *again) | |
1c8f6a4d | 11720 | { |
fbaf61ad NC |
11721 | /* Pattern: |
11722 | sethi ra, hi20(symbol) ; HI20/LOADSTORE | |
11723 | ori ra, ra, lo12(symbol) ; LO12S0/PTR/PTR/.../INSN16 | |
11724 | flsi fsa, [ra + offset1] ; LSI/PTR_RESOLVED/INSN16 | |
11725 | flsi fsb, [ra + offset2] ; LSI/PTR_RESOLVED/INSN16 | |
11726 | ... */ | |
11727 | ||
1c8f6a4d | 11728 | uint32_t insn; |
1c8f6a4d | 11729 | bfd_vma local_sda, laddr; |
fbaf61ad NC |
11730 | unsigned long reloc; |
11731 | bfd_vma access_addr, flsi_offset; | |
11732 | bfd_vma range_l = 0, range_h = 0; /* Upper/lower bound. */ | |
11733 | Elf_Internal_Rela *irelend, *re_irel; | |
11734 | unsigned int opcode; | |
1c8f6a4d KLC |
11735 | |
11736 | irelend = internal_relocs + sec->reloc_count; | |
11737 | laddr = irel->r_offset; | |
11738 | insn = bfd_getb32 (contents + laddr); | |
11739 | ||
fbaf61ad | 11740 | if ((insn & 0x80000000) || !is_sda_access_insn (insn)) |
1c8f6a4d KLC |
11741 | return; |
11742 | ||
fbaf61ad NC |
11743 | /* Can not do relaxation for bi format. */ |
11744 | if ((insn & 0x1000)) | |
1c8f6a4d KLC |
11745 | return; |
11746 | ||
fbaf61ad NC |
11747 | /* Only deal with flsi, fssi, fldi, fsdi, so far. */ |
11748 | opcode = N32_OP6 (insn); | |
11749 | if ((opcode == N32_OP6_LWC) || (opcode == N32_OP6_SWC)) | |
11750 | reloc = R_NDS32_SDA12S2_SP_RELA; | |
11751 | else if ((opcode == N32_OP6_LDC) || (opcode == N32_OP6_SDC)) | |
11752 | reloc = R_NDS32_SDA12S2_DP_RELA; | |
1c8f6a4d KLC |
11753 | else |
11754 | return; | |
11755 | ||
fbaf61ad NC |
11756 | re_irel = find_relocs_at_address (irel, internal_relocs, irelend, |
11757 | R_NDS32_PTR_RESOLVED); | |
11758 | if (re_irel == irelend) | |
1c8f6a4d | 11759 | { |
fbaf61ad NC |
11760 | _bfd_error_handler (unrecognized_reloc_msg, abfd, "R_NDS32_LSI", |
11761 | (uint64_t) irel->r_offset); | |
11762 | return; | |
1c8f6a4d | 11763 | } |
1c8f6a4d | 11764 | |
fbaf61ad | 11765 | /* For SDA base relative relaxation. */ |
1c8f6a4d KLC |
11766 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, |
11767 | &local_sda, FALSE); | |
fbaf61ad NC |
11768 | access_addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); |
11769 | flsi_offset = (insn & 0xfff) << 2; | |
11770 | access_addr += flsi_offset; | |
11771 | range_l = sdata_range[0][0]; | |
11772 | range_h = sdata_range[0][1]; | |
1c8f6a4d | 11773 | |
fbaf61ad NC |
11774 | if ((local_sda <= access_addr && (access_addr - local_sda) < range_h) |
11775 | || (local_sda > access_addr && (local_sda - access_addr) <= range_l)) | |
1c8f6a4d | 11776 | { |
fbaf61ad NC |
11777 | /* Turn flsi instruction into sda access format. */ |
11778 | insn = (insn & 0x7ff07000) | (REG_GP << 15); | |
1c8f6a4d | 11779 | |
fbaf61ad NC |
11780 | /* Add relocation type to flsi. */ |
11781 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), reloc); | |
11782 | irel->r_addend += flsi_offset; | |
11783 | bfd_putb32 (insn, contents + re_irel->r_offset); | |
1c8f6a4d | 11784 | |
fbaf61ad | 11785 | re_irel->r_addend |= 1; |
1c8f6a4d KLC |
11786 | *again = TRUE; |
11787 | } | |
1c8f6a4d KLC |
11788 | } |
11789 | ||
11790 | static bfd_boolean | |
11791 | nds32_relax_adjust_label (bfd *abfd, asection *sec, | |
11792 | Elf_Internal_Rela *internal_relocs, | |
11793 | bfd_byte *contents, | |
11794 | nds32_elf_blank_t **relax_blank_list, | |
11795 | int optimize, int opt_size) | |
11796 | { | |
11797 | /* This code block is used to adjust 4-byte alignment by relax a pair | |
11798 | of instruction a time. | |
11799 | ||
11800 | It recognizes three types of relocations. | |
de194d85 | 11801 | 1. R_NDS32_LABEL - a alignment. |
1c8f6a4d KLC |
11802 | 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit. |
11803 | 3. is_16bit_NOP () - remove a 16-bit instruction. */ | |
11804 | ||
de194d85 YC |
11805 | /* TODO: It seems currently implementation only support 4-byte alignment. |
11806 | We should handle any-alignment. */ | |
1c8f6a4d KLC |
11807 | |
11808 | Elf_Internal_Rela *insn_rel = NULL, *label_rel = NULL, *irel; | |
11809 | Elf_Internal_Rela *tmp_rel, *tmp2_rel = NULL; | |
11810 | Elf_Internal_Rela rel_temp; | |
11811 | Elf_Internal_Rela *irelend; | |
11812 | bfd_vma address; | |
11813 | uint16_t insn16; | |
11814 | ||
11815 | /* Checking for branch relaxation relies on the relocations to | |
11816 | be sorted on 'r_offset'. This is not guaranteed so we must sort. */ | |
11817 | nds32_insertion_sort (internal_relocs, sec->reloc_count, | |
11818 | sizeof (Elf_Internal_Rela), compar_reloc); | |
11819 | ||
11820 | irelend = internal_relocs + sec->reloc_count; | |
11821 | ||
11822 | /* Force R_NDS32_LABEL before R_NDS32_INSN16. */ | |
11823 | /* FIXME: Can we generate the right order in assembler? | |
11824 | So we don't have to swapping them here. */ | |
11825 | ||
11826 | for (label_rel = internal_relocs, insn_rel = internal_relocs; | |
11827 | label_rel < irelend; label_rel++) | |
11828 | { | |
11829 | if (ELF32_R_TYPE (label_rel->r_info) != R_NDS32_LABEL) | |
11830 | continue; | |
11831 | ||
11832 | /* Find the first reloc has the same offset with label_rel. */ | |
11833 | while (insn_rel < irelend && insn_rel->r_offset < label_rel->r_offset) | |
11834 | insn_rel++; | |
11835 | ||
11836 | for (;insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset; | |
11837 | insn_rel++) | |
11838 | /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same | |
11839 | address. */ | |
11840 | if (ELF32_R_TYPE (insn_rel->r_info) == R_NDS32_INSN16) | |
11841 | break; | |
11842 | ||
11843 | if (insn_rel < irelend && insn_rel->r_offset == label_rel->r_offset | |
11844 | && insn_rel < label_rel) | |
11845 | { | |
11846 | /* Swap the two reloc if the R_NDS32_INSN16 is | |
11847 | before R_NDS32_LABEL. */ | |
11848 | memcpy (&rel_temp, insn_rel, sizeof (Elf_Internal_Rela)); | |
11849 | memcpy (insn_rel, label_rel, sizeof (Elf_Internal_Rela)); | |
11850 | memcpy (label_rel, &rel_temp, sizeof (Elf_Internal_Rela)); | |
11851 | } | |
11852 | } | |
11853 | ||
11854 | label_rel = NULL; | |
11855 | insn_rel = NULL; | |
11856 | /* If there were a sequence of R_NDS32_LABEL end up with .align 2 | |
11857 | or higher, remove other R_NDS32_LABEL with lower alignment. | |
11858 | If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted, | |
11859 | then the R_NDS32_LABEL sequence is broke. */ | |
11860 | for (tmp_rel = internal_relocs; tmp_rel < irelend; tmp_rel++) | |
11861 | { | |
11862 | if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_LABEL) | |
11863 | { | |
11864 | if (label_rel == NULL) | |
11865 | { | |
11866 | if (tmp_rel->r_addend < 2) | |
11867 | label_rel = tmp_rel; | |
11868 | continue; | |
11869 | } | |
11870 | else if (tmp_rel->r_addend > 1) | |
11871 | { | |
11872 | /* Remove all LABEL relocation from label_rel to tmp_rel | |
11873 | including relocations with same offset as tmp_rel. */ | |
fbaf61ad | 11874 | for (tmp2_rel = label_rel; tmp2_rel < tmp_rel; tmp2_rel++) |
1c8f6a4d | 11875 | { |
fbaf61ad NC |
11876 | if (tmp2_rel->r_offset == tmp_rel->r_offset) |
11877 | break; | |
11878 | ||
1c8f6a4d KLC |
11879 | if (ELF32_R_TYPE (tmp2_rel->r_info) == R_NDS32_LABEL |
11880 | && tmp2_rel->r_addend < 2) | |
11881 | tmp2_rel->r_info = | |
11882 | ELF32_R_INFO (ELF32_R_SYM (tmp2_rel->r_info), | |
11883 | R_NDS32_NONE); | |
11884 | } | |
11885 | label_rel = NULL; | |
11886 | } | |
11887 | } | |
11888 | else if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 && label_rel) | |
11889 | { | |
11890 | /* A new INSN16 which can be converted, so clear label_rel. */ | |
11891 | if (is_convert_32_to_16 (abfd, sec, tmp_rel, internal_relocs, | |
11892 | irelend, &insn16) | |
11893 | || is_16bit_NOP (abfd, sec, tmp_rel)) | |
11894 | label_rel = NULL; | |
11895 | } | |
11896 | } | |
11897 | ||
11898 | label_rel = NULL; | |
11899 | insn_rel = NULL; | |
11900 | /* Optimized for speed and nothing has not been relaxed. | |
11901 | It's time to align labels. | |
11902 | We may convert a 16-bit instruction right before a label to | |
11903 | 32-bit, in order to align the label if necessary | |
11904 | all reloc entries has been sorted by r_offset. */ | |
fbaf61ad NC |
11905 | for (irel = internal_relocs; |
11906 | irel < irelend && irel->r_offset < sec->size; irel++) | |
1c8f6a4d KLC |
11907 | { |
11908 | if (ELF32_R_TYPE (irel->r_info) != R_NDS32_INSN16 | |
11909 | && ELF32_R_TYPE (irel->r_info) != R_NDS32_LABEL) | |
11910 | continue; | |
11911 | ||
11912 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_INSN16) | |
11913 | { | |
11914 | /* A new INSN16 found, resize the old one. */ | |
11915 | if (is_convert_32_to_16 | |
11916 | (abfd, sec, irel, internal_relocs, irelend, &insn16) | |
11917 | || is_16bit_NOP (abfd, sec, irel)) | |
11918 | { | |
11919 | if (insn_rel) | |
11920 | { | |
11921 | /* Previous INSN16 reloc exists, reduce its | |
11922 | size to 16-bit. */ | |
11923 | if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs, | |
11924 | irelend, &insn16)) | |
35c08157 | 11925 | { |
1c8f6a4d KLC |
11926 | nds32_elf_write_16 (abfd, contents, insn_rel, |
11927 | internal_relocs, irelend, insn16); | |
11928 | ||
11929 | if (!insert_nds32_elf_blank_recalc_total | |
11930 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
11931 | return FALSE; | |
11932 | } | |
11933 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
11934 | { | |
11935 | if (!insert_nds32_elf_blank_recalc_total | |
11936 | (relax_blank_list, insn_rel->r_offset, 2)) | |
11937 | return FALSE; | |
11938 | } | |
11939 | insn_rel->r_info = | |
11940 | ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), R_NDS32_NONE); | |
11941 | } | |
11942 | /* Save the new one for later use. */ | |
11943 | insn_rel = irel; | |
11944 | } | |
11945 | else | |
11946 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
11947 | R_NDS32_NONE); | |
11948 | } | |
11949 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL) | |
11950 | { | |
11951 | /* Search for label. */ | |
11952 | int force_relax = 0; | |
11953 | ||
11954 | /* Label on 16-bit instruction or optimization | |
11955 | needless, just reset this reloc. */ | |
11956 | insn16 = bfd_getb16 (contents + irel->r_offset); | |
11957 | if ((irel->r_addend & 0x1f) < 2 && (!optimize || (insn16 & 0x8000))) | |
11958 | { | |
11959 | irel->r_info = | |
11960 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_NDS32_NONE); | |
11961 | continue; | |
11962 | } | |
11963 | ||
11964 | address = | |
11965 | irel->r_offset - get_nds32_elf_blank_total (relax_blank_list, | |
11966 | irel->r_offset, 1); | |
11967 | ||
11968 | if (!insn_rel) | |
11969 | { | |
11970 | /* Check if there is case which can not be aligned. */ | |
11971 | if (irel->r_addend == 2 && address & 0x2) | |
11972 | return FALSE; | |
11973 | continue; | |
11974 | } | |
11975 | ||
11976 | /* Try to align this label. */ | |
11977 | ||
11978 | if ((irel->r_addend & 0x1f) < 2) | |
11979 | { | |
11980 | /* Check if there is a INSN16 at the same address. | |
11981 | Label_rel always seats before insn_rel after | |
11982 | our sort. */ | |
11983 | ||
11984 | /* Search for INSN16 at LABEL location. If INSN16 is at | |
11985 | same location and this LABEL alignment is lower than 2, | |
11986 | the INSN16 can be converted to 2-byte. */ | |
11987 | for (tmp_rel = irel; | |
11988 | tmp_rel < irelend && tmp_rel->r_offset == irel->r_offset; | |
11989 | tmp_rel++) | |
11990 | { | |
11991 | if (ELF32_R_TYPE (tmp_rel->r_info) == R_NDS32_INSN16 | |
11992 | && (is_convert_32_to_16 | |
11993 | (abfd, sec, tmp_rel, internal_relocs, | |
11994 | irelend, &insn16) | |
11995 | || is_16bit_NOP (abfd, sec, tmp_rel))) | |
11996 | { | |
11997 | force_relax = 1; | |
11998 | break; | |
11999 | } | |
12000 | } | |
12001 | } | |
12002 | ||
12003 | if (force_relax || irel->r_addend == 1 || address & 0x2) | |
12004 | { | |
12005 | /* Label not aligned. */ | |
12006 | /* Previous reloc exists, reduce its size to 16-bit. */ | |
12007 | if (is_convert_32_to_16 (abfd, sec, insn_rel, | |
12008 | internal_relocs, irelend, &insn16)) | |
12009 | { | |
12010 | nds32_elf_write_16 (abfd, contents, insn_rel, | |
12011 | internal_relocs, irelend, insn16); | |
12012 | ||
12013 | if (!insert_nds32_elf_blank_recalc_total | |
12014 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
12015 | return FALSE; | |
12016 | } | |
12017 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
12018 | { | |
12019 | if (!insert_nds32_elf_blank_recalc_total | |
12020 | (relax_blank_list, insn_rel->r_offset, 2)) | |
12021 | return FALSE; | |
12022 | } | |
12023 | ||
12024 | } | |
12025 | /* INSN16 reloc is used. */ | |
12026 | insn_rel = NULL; | |
12027 | } | |
12028 | } | |
12029 | ||
12030 | address = | |
12031 | sec->size - get_nds32_elf_blank_total (relax_blank_list, sec->size, 0); | |
12032 | if (insn_rel && (address & 0x2 || opt_size)) | |
12033 | { | |
12034 | if (is_convert_32_to_16 (abfd, sec, insn_rel, internal_relocs, | |
12035 | irelend, &insn16)) | |
12036 | { | |
12037 | nds32_elf_write_16 (abfd, contents, insn_rel, internal_relocs, | |
12038 | irelend, insn16); | |
12039 | if (!insert_nds32_elf_blank_recalc_total | |
12040 | (relax_blank_list, insn_rel->r_offset + 2, 2)) | |
12041 | return FALSE; | |
12042 | insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), | |
12043 | R_NDS32_NONE); | |
12044 | } | |
12045 | else if (is_16bit_NOP (abfd, sec, insn_rel)) | |
12046 | { | |
12047 | if (!insert_nds32_elf_blank_recalc_total | |
12048 | (relax_blank_list, insn_rel->r_offset, 2)) | |
12049 | return FALSE; | |
12050 | insn_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (insn_rel->r_info), | |
12051 | R_NDS32_NONE); | |
12052 | } | |
12053 | } | |
12054 | insn_rel = NULL; | |
12055 | return TRUE; | |
12056 | } | |
12057 | ||
1c8f6a4d KLC |
12058 | static bfd_boolean |
12059 | nds32_elf_relax_section (bfd *abfd, asection *sec, | |
12060 | struct bfd_link_info *link_info, bfd_boolean *again) | |
12061 | { | |
12062 | nds32_elf_blank_t *relax_blank_list = NULL; | |
12063 | Elf_Internal_Shdr *symtab_hdr; | |
12064 | Elf_Internal_Rela *internal_relocs; | |
12065 | Elf_Internal_Rela *irel; | |
12066 | Elf_Internal_Rela *irelend; | |
12067 | Elf_Internal_Sym *isymbuf = NULL; | |
12068 | bfd_byte *contents = NULL; | |
12069 | bfd_boolean result = TRUE; | |
12070 | int optimize = 0; | |
12071 | int opt_size = 0; | |
12072 | uint32_t insn; | |
12073 | uint16_t insn16; | |
12074 | ||
12075 | /* Target dependnet option. */ | |
12076 | struct elf_nds32_link_hash_table *table; | |
12077 | int load_store_relax; | |
1c8f6a4d KLC |
12078 | |
12079 | relax_blank_list = NULL; | |
12080 | ||
12081 | *again = FALSE; | |
12082 | ||
12083 | /* Nothing to do for | |
12084 | * relocatable link or | |
12085 | * non-relocatable section or | |
12086 | * non-code section or | |
12087 | * empty content or | |
12088 | * no reloc entry. */ | |
0e1862bb | 12089 | if (bfd_link_relocatable (link_info) |
1c8f6a4d | 12090 | || (sec->flags & SEC_RELOC) == 0 |
cd28e7aa | 12091 | || (sec->flags & SEC_EXCLUDE) != 0 |
1c8f6a4d | 12092 | || (sec->flags & SEC_CODE) == 0 |
fbaf61ad NC |
12093 | || sec->size == 0 |
12094 | || sec->reloc_count == 0) | |
1c8f6a4d KLC |
12095 | return TRUE; |
12096 | ||
12097 | /* 09.12.11 Workaround. */ | |
12098 | /* We have to adjust align for R_NDS32_LABEL if needed. | |
12099 | The adjust approach only can fix 2-byte align once. */ | |
12100 | if (sec->alignment_power > 2) | |
12101 | return TRUE; | |
12102 | ||
fbaf61ad NC |
12103 | /* Do TLS model conversion once at first. */ |
12104 | nds32_elf_unify_tls_model (abfd, sec, contents, link_info); | |
12105 | ||
1c8f6a4d KLC |
12106 | /* The optimization type to do. */ |
12107 | ||
12108 | table = nds32_elf_hash_table (link_info); | |
1c8f6a4d | 12109 | |
fbaf61ad NC |
12110 | /* Save the first section for abs symbol relaxation. |
12111 | This is used for checking gp relaxation in the | |
12112 | nds32_elf_relax_loadstore and nds32_elf_relax_lo12. */ | |
12113 | nds32_elf_relax_guard (NULL, 0, sec, NULL, again, TRUE, | |
12114 | table, NULL, NULL); | |
12115 | ||
1c8f6a4d KLC |
12116 | /* The begining of general relaxation. */ |
12117 | ||
12118 | if (is_SDA_BASE_set == 0) | |
12119 | { | |
12120 | bfd_vma gp; | |
12121 | is_SDA_BASE_set = 1; | |
12122 | nds32_elf_final_sda_base (sec->output_section->owner, link_info, | |
12123 | &gp, FALSE); | |
12124 | relax_range_measurement (abfd); | |
12125 | } | |
12126 | ||
1c8f6a4d KLC |
12127 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
12128 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
12129 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, | |
12130 | TRUE /* keep_memory */); | |
12131 | if (internal_relocs == NULL) | |
12132 | goto error_return; | |
12133 | ||
12134 | irelend = internal_relocs + sec->reloc_count; | |
12135 | irel = find_relocs_at_address (internal_relocs, internal_relocs, | |
12136 | irelend, R_NDS32_RELAX_ENTRY); | |
12137 | ||
12138 | if (irel == irelend) | |
12139 | return TRUE; | |
12140 | ||
12141 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_ENTRY) | |
12142 | { | |
12143 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG) | |
f9671640 | 12144 | return TRUE; |
1c8f6a4d KLC |
12145 | |
12146 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG) | |
12147 | optimize = 1; | |
12148 | ||
12149 | if (irel->r_addend & R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG) | |
12150 | opt_size = 1; | |
12151 | } | |
12152 | ||
12153 | load_store_relax = table->load_store_relax; | |
12154 | ||
12155 | /* Get symbol table and section content. */ | |
0c4bd9d9 | 12156 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE) |
1c8f6a4d KLC |
12157 | || !nds32_get_local_syms (abfd, sec, &isymbuf)) |
12158 | goto error_return; | |
12159 | ||
12160 | /* Do relax loop only when finalize is not done. | |
12161 | Take care of relaxable relocs except INSN16. */ | |
12162 | for (irel = internal_relocs; irel < irelend; irel++) | |
12163 | { | |
12164 | int seq_len; /* Original length of instruction sequence. */ | |
12165 | int insn_len = 0; /* Final length of instruction sequence. */ | |
12166 | bfd_boolean removed; | |
12167 | ||
12168 | insn = 0; | |
12169 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_LABEL | |
12170 | && (irel->r_addend & 0x1f) >= 2) | |
12171 | optimize = 1; | |
12172 | ||
12173 | /* Relocation Types | |
12174 | R_NDS32_LONGCALL1 53 | |
12175 | R_NDS32_LONGCALL2 54 | |
12176 | R_NDS32_LONGCALL3 55 | |
12177 | R_NDS32_LONGJUMP1 56 | |
12178 | R_NDS32_LONGJUMP2 57 | |
12179 | R_NDS32_LONGJUMP3 58 | |
12180 | R_NDS32_LOADSTORE 59 */ | |
12181 | if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL1 | |
12182 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LOADSTORE) | |
12183 | seq_len = GET_SEQ_LEN (irel->r_addend); | |
12184 | ||
12185 | /* Relocation Types | |
12186 | R_NDS32_LONGCALL4 107 | |
12187 | R_NDS32_LONGCALL5 108 | |
12188 | R_NDS32_LONGCALL6 109 | |
12189 | R_NDS32_LONGJUMP4 110 | |
12190 | R_NDS32_LONGJUMP5 111 | |
12191 | R_NDS32_LONGJUMP6 112 | |
12192 | R_NDS32_LONGJUMP7 113 */ | |
12193 | else if (ELF32_R_TYPE (irel->r_info) >= R_NDS32_LONGCALL4 | |
12194 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_LONGJUMP7) | |
12195 | seq_len = 4; | |
12196 | ||
12197 | /* Relocation Types | |
12198 | R_NDS32_LO12S0_RELA 30 | |
12199 | R_NDS32_LO12S1_RELA 29 | |
12200 | R_NDS32_LO12S2_RELA 28 | |
12201 | R_NDS32_LO12S2_SP_RELA 71 | |
12202 | R_NDS32_LO12S2_DP_RELA 70 | |
12203 | R_NDS32_GOT_LO12 46 | |
12204 | R_NDS32_GOTOFF_LO12 50 | |
12205 | R_NDS32_PLTREL_LO12 65 | |
12206 | R_NDS32_PLT_GOTREL_LO12 67 | |
12207 | R_NDS32_17IFC_PCREL_RELA 96 | |
12208 | R_NDS32_GOT_SUFF 193 | |
12209 | R_NDS32_GOTOFF_SUFF 194 | |
12210 | R_NDS32_PLT_GOT_SUFF 195 | |
12211 | R_NDS32_MULCALL_SUFF 196 | |
12212 | R_NDS32_PTR 197 */ | |
12213 | else if ((ELF32_R_TYPE (irel->r_info) <= R_NDS32_LO12S0_RELA | |
12214 | && ELF32_R_TYPE (irel->r_info) >= R_NDS32_LO12S2_RELA) | |
12215 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_SP_RELA | |
12216 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LO12S2_DP_RELA | |
12217 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOT_LO12 | |
12218 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTOFF_LO12 | |
12219 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_GOTPC_LO12 | |
12220 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLTREL_LO12 | |
12221 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_PLT_GOTREL_LO12 | |
12222 | || (ELF32_R_TYPE (irel->r_info) >= R_NDS32_GOT_SUFF | |
12223 | && ELF32_R_TYPE (irel->r_info) <= R_NDS32_PTR) | |
12224 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA | |
12225 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LO12 | |
12226 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_ADD | |
fbaf61ad NC |
12227 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_TLS_LE_LS |
12228 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_LSI) | |
1c8f6a4d KLC |
12229 | seq_len = 0; |
12230 | else | |
12231 | continue; | |
12232 | ||
12233 | insn_len = seq_len; | |
12234 | removed = FALSE; | |
12235 | ||
12236 | switch (ELF32_R_TYPE (irel->r_info)) | |
12237 | { | |
12238 | case R_NDS32_LONGCALL1: | |
12239 | removed = nds32_elf_relax_longcall1 (abfd, sec, irel, internal_relocs, | |
12240 | &insn_len, contents, isymbuf, | |
12241 | symtab_hdr); | |
12242 | break; | |
12243 | case R_NDS32_LONGCALL2: | |
12244 | removed = nds32_elf_relax_longcall2 (abfd, sec, irel, internal_relocs, | |
12245 | &insn_len, contents, isymbuf, | |
12246 | symtab_hdr); | |
12247 | break; | |
12248 | case R_NDS32_LONGCALL3: | |
12249 | removed = nds32_elf_relax_longcall3 (abfd, sec, irel, internal_relocs, | |
12250 | &insn_len, contents, isymbuf, | |
12251 | symtab_hdr); | |
12252 | break; | |
12253 | case R_NDS32_LONGJUMP1: | |
12254 | removed = nds32_elf_relax_longjump1 (abfd, sec, irel, internal_relocs, | |
12255 | &insn_len, contents, isymbuf, | |
12256 | symtab_hdr); | |
12257 | break; | |
12258 | case R_NDS32_LONGJUMP2: | |
12259 | removed = nds32_elf_relax_longjump2 (abfd, sec, irel, internal_relocs, | |
12260 | &insn_len, contents, isymbuf, | |
12261 | symtab_hdr); | |
12262 | break; | |
12263 | case R_NDS32_LONGJUMP3: | |
12264 | removed = nds32_elf_relax_longjump3 (abfd, sec, irel, internal_relocs, | |
12265 | &insn_len, contents, isymbuf, | |
12266 | symtab_hdr); | |
12267 | break; | |
12268 | case R_NDS32_LONGCALL4: | |
12269 | removed = nds32_elf_relax_longcall4 (abfd, sec, irel, internal_relocs, | |
12270 | &insn_len, contents, isymbuf, | |
12271 | symtab_hdr); | |
12272 | break; | |
12273 | case R_NDS32_LONGCALL5: | |
12274 | removed = nds32_elf_relax_longcall5 (abfd, sec, irel, internal_relocs, | |
12275 | &insn_len, contents, isymbuf, | |
12276 | symtab_hdr); | |
12277 | break; | |
12278 | case R_NDS32_LONGCALL6: | |
12279 | removed = nds32_elf_relax_longcall6 (abfd, sec, irel, internal_relocs, | |
12280 | &insn_len, contents, isymbuf, | |
12281 | symtab_hdr); | |
12282 | break; | |
12283 | case R_NDS32_LONGJUMP4: | |
12284 | removed = nds32_elf_relax_longjump4 (abfd, sec, irel, internal_relocs, | |
12285 | &insn_len, contents, isymbuf, | |
12286 | symtab_hdr); | |
12287 | break; | |
12288 | case R_NDS32_LONGJUMP5: | |
12289 | removed = nds32_elf_relax_longjump5 (abfd, sec, irel, internal_relocs, | |
12290 | &insn_len, &seq_len, contents, | |
12291 | isymbuf, symtab_hdr); | |
12292 | break; | |
12293 | case R_NDS32_LONGJUMP6: | |
12294 | removed = nds32_elf_relax_longjump6 (abfd, sec, irel, internal_relocs, | |
12295 | &insn_len, &seq_len, contents, | |
12296 | isymbuf, symtab_hdr); | |
12297 | break; | |
12298 | case R_NDS32_LONGJUMP7: | |
12299 | removed = nds32_elf_relax_longjump7 (abfd, sec, irel, internal_relocs, | |
12300 | &insn_len, &seq_len, contents, | |
12301 | isymbuf, symtab_hdr); | |
12302 | break; | |
12303 | case R_NDS32_LOADSTORE: | |
12304 | removed = nds32_elf_relax_loadstore (link_info, abfd, sec, irel, | |
12305 | internal_relocs, &insn_len, | |
12306 | contents, isymbuf, symtab_hdr, | |
fbaf61ad | 12307 | load_store_relax, table); |
1c8f6a4d KLC |
12308 | break; |
12309 | case R_NDS32_LO12S0_RELA: | |
12310 | case R_NDS32_LO12S1_RELA: | |
fbaf61ad | 12311 | case R_NDS32_LO12S2_RELA: |
1c8f6a4d KLC |
12312 | case R_NDS32_LO12S2_DP_RELA: |
12313 | case R_NDS32_LO12S2_SP_RELA: | |
1c8f6a4d KLC |
12314 | /* Relax for low part. */ |
12315 | nds32_elf_relax_lo12 (link_info, abfd, sec, irel, internal_relocs, | |
fbaf61ad | 12316 | contents, isymbuf, symtab_hdr, table); |
1c8f6a4d KLC |
12317 | |
12318 | /* It is impossible to delete blank, so just continue. */ | |
12319 | continue; | |
fbaf61ad NC |
12320 | case R_NDS32_PTR: |
12321 | removed = nds32_elf_relax_ptr (abfd, sec, irel, internal_relocs, | |
12322 | &insn_len, &seq_len, contents); | |
12323 | break; | |
12324 | case R_NDS32_LSI: | |
12325 | nds32_elf_relax_flsi (link_info, abfd, sec, irel, internal_relocs, | |
12326 | contents, isymbuf, symtab_hdr, again); | |
12327 | continue; | |
1c8f6a4d KLC |
12328 | case R_NDS32_GOT_LO12: |
12329 | case R_NDS32_GOTOFF_LO12: | |
12330 | case R_NDS32_PLTREL_LO12: | |
12331 | case R_NDS32_PLT_GOTREL_LO12: | |
12332 | case R_NDS32_GOTPC_LO12: | |
1c8f6a4d | 12333 | case R_NDS32_TLS_LE_LO12: |
1c8f6a4d | 12334 | case R_NDS32_TLS_LE_ADD: |
1c8f6a4d | 12335 | case R_NDS32_TLS_LE_LS: |
1c8f6a4d | 12336 | case R_NDS32_PLT_GOT_SUFF: |
1c8f6a4d | 12337 | case R_NDS32_GOT_SUFF: |
1c8f6a4d | 12338 | case R_NDS32_GOTOFF_SUFF: |
1c8f6a4d KLC |
12339 | continue; |
12340 | default: | |
12341 | continue; | |
1c8f6a4d | 12342 | } |
fbaf61ad | 12343 | |
1c8f6a4d KLC |
12344 | if (removed && seq_len - insn_len > 0) |
12345 | { | |
12346 | if (!insert_nds32_elf_blank | |
12347 | (&relax_blank_list, irel->r_offset + insn_len, | |
12348 | seq_len - insn_len)) | |
12349 | goto error_return; | |
12350 | *again = TRUE; | |
35c08157 | 12351 | } |
1c8f6a4d KLC |
12352 | } |
12353 | ||
12354 | calc_nds32_blank_total (relax_blank_list); | |
12355 | ||
12356 | if (table->relax_fp_as_gp) | |
12357 | { | |
12358 | if (!nds32_relax_fp_as_gp (link_info, abfd, sec, internal_relocs, | |
12359 | irelend, isymbuf)) | |
12360 | goto error_return; | |
35c08157 | 12361 | |
535b785f | 12362 | if (!*again) |
35c08157 | 12363 | { |
1c8f6a4d KLC |
12364 | if (!nds32_fag_remove_unused_fpbase (abfd, sec, internal_relocs, |
12365 | irelend)) | |
12366 | goto error_return; | |
35c08157 KLC |
12367 | } |
12368 | } | |
1c8f6a4d | 12369 | |
535b785f | 12370 | if (!*again) |
1c8f6a4d KLC |
12371 | { |
12372 | if (!nds32_relax_adjust_label (abfd, sec, internal_relocs, contents, | |
12373 | &relax_blank_list, optimize, opt_size)) | |
12374 | goto error_return; | |
12375 | } | |
12376 | ||
12377 | /* It doesn't matter optimize_for_space_no_align anymore. | |
35c08157 KLC |
12378 | If object file is assembled with flag '-Os', |
12379 | the we don't adjust jump-destination on 4-byte boundary. */ | |
12380 | ||
12381 | if (relax_blank_list) | |
12382 | { | |
12383 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
12384 | relax_blank_list = NULL; | |
12385 | } | |
12386 | ||
535b785f | 12387 | if (!*again) |
35c08157 KLC |
12388 | { |
12389 | /* Closing the section, so we don't relax it anymore. */ | |
12390 | bfd_vma sec_size_align; | |
12391 | Elf_Internal_Rela *tmp_rel; | |
12392 | ||
12393 | /* Pad to alignment boundary. Only handle current section alignment. */ | |
609332f1 NC |
12394 | sec_size_align = (sec->size + (~((-1U) << sec->alignment_power))) |
12395 | & ((-1U) << sec->alignment_power); | |
35c08157 KLC |
12396 | if ((sec_size_align - sec->size) & 0x2) |
12397 | { | |
12398 | insn16 = NDS32_NOP16; | |
12399 | bfd_putb16 (insn16, contents + sec->size); | |
12400 | sec->size += 2; | |
12401 | } | |
12402 | ||
12403 | while (sec_size_align != sec->size) | |
12404 | { | |
12405 | insn = NDS32_NOP32; | |
12406 | bfd_putb32 (insn, contents + sec->size); | |
12407 | sec->size += 4; | |
12408 | } | |
12409 | ||
1c8f6a4d KLC |
12410 | tmp_rel = find_relocs_at_address (internal_relocs, internal_relocs, |
12411 | irelend, R_NDS32_RELAX_ENTRY); | |
35c08157 KLC |
12412 | if (tmp_rel != irelend) |
12413 | tmp_rel->r_addend |= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG; | |
12414 | ||
12415 | clean_nds32_elf_blank (); | |
12416 | } | |
12417 | ||
dc1e8a47 | 12418 | finish: |
c9594989 | 12419 | if (elf_section_data (sec)->relocs != internal_relocs) |
35c08157 KLC |
12420 | free (internal_relocs); |
12421 | ||
c9594989 | 12422 | if (elf_section_data (sec)->this_hdr.contents != contents) |
35c08157 KLC |
12423 | free (contents); |
12424 | ||
c9594989 | 12425 | if (symtab_hdr->contents != (bfd_byte *) isymbuf) |
35c08157 KLC |
12426 | free (isymbuf); |
12427 | ||
12428 | return result; | |
12429 | ||
dc1e8a47 | 12430 | error_return: |
35c08157 KLC |
12431 | result = FALSE; |
12432 | goto finish; | |
12433 | } | |
12434 | ||
12435 | static struct bfd_elf_special_section const nds32_elf_special_sections[] = | |
12436 | { | |
12437 | {".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE}, | |
12438 | {".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE}, | |
12439 | {NULL, 0, 0, 0, 0} | |
12440 | }; | |
12441 | ||
bf577467 AM |
12442 | static bfd_boolean |
12443 | nds32_elf_section_flags (const Elf_Internal_Shdr *hdr) | |
12444 | { | |
12445 | const char *name = hdr->bfd_section->name; | |
12446 | ||
12447 | if (strncmp (name, ".sbss", 5) == 0 | |
12448 | || strncmp (name, ".sdata", 6) == 0) | |
12449 | hdr->bfd_section->flags |= SEC_SMALL_DATA; | |
12450 | ||
12451 | return TRUE; | |
12452 | } | |
12453 | ||
35c08157 KLC |
12454 | static bfd_boolean |
12455 | nds32_elf_output_arch_syms (bfd *output_bfd ATTRIBUTE_UNUSED, | |
12456 | struct bfd_link_info *info, | |
12457 | void *finfo ATTRIBUTE_UNUSED, | |
12458 | bfd_boolean (*func) (void *, const char *, | |
12459 | Elf_Internal_Sym *, | |
12460 | asection *, | |
12461 | struct elf_link_hash_entry *) | |
12462 | ATTRIBUTE_UNUSED) | |
12463 | { | |
12464 | FILE *sym_ld_script = NULL; | |
12465 | struct elf_nds32_link_hash_table *table; | |
12466 | ||
12467 | table = nds32_elf_hash_table (info); | |
12468 | sym_ld_script = table->sym_ld_script; | |
12469 | ||
12470 | if (check_start_export_sym) | |
12471 | fprintf (sym_ld_script, "}\n"); | |
12472 | ||
12473 | return TRUE; | |
12474 | } | |
12475 | ||
12476 | static enum elf_reloc_type_class | |
12477 | nds32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
12478 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12479 | const Elf_Internal_Rela *rela) | |
12480 | { | |
12481 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
12482 | { | |
12483 | case R_NDS32_RELATIVE: | |
12484 | return reloc_class_relative; | |
12485 | case R_NDS32_JMP_SLOT: | |
12486 | return reloc_class_plt; | |
12487 | case R_NDS32_COPY: | |
12488 | return reloc_class_copy; | |
12489 | default: | |
12490 | return reloc_class_normal; | |
12491 | } | |
12492 | } | |
12493 | ||
12494 | /* Put target dependent option into info hash table. */ | |
12495 | void | |
12496 | bfd_elf32_nds32_set_target_option (struct bfd_link_info *link_info, | |
12497 | int relax_fp_as_gp, | |
12498 | int eliminate_gc_relocs, | |
fbaf61ad NC |
12499 | FILE * sym_ld_script, |
12500 | int hyper_relax, | |
12501 | int tls_desc_trampoline, | |
12502 | int load_store_relax) | |
35c08157 KLC |
12503 | { |
12504 | struct elf_nds32_link_hash_table *table; | |
12505 | ||
12506 | table = nds32_elf_hash_table (link_info); | |
12507 | if (table == NULL) | |
12508 | return; | |
12509 | ||
12510 | table->relax_fp_as_gp = relax_fp_as_gp; | |
12511 | table->eliminate_gc_relocs = eliminate_gc_relocs; | |
12512 | table->sym_ld_script = sym_ld_script; | |
fbaf61ad NC |
12513 | table->hyper_relax = hyper_relax; |
12514 | table->tls_desc_trampoline = tls_desc_trampoline; | |
35c08157 | 12515 | table ->load_store_relax = load_store_relax; |
35c08157 KLC |
12516 | } |
12517 | \f | |
fbaf61ad | 12518 | |
35c08157 KLC |
12519 | /* These functions and data-structures are used for fp-as-gp |
12520 | optimization. */ | |
12521 | ||
12522 | #define FAG_THRESHOLD 3 /* At least 3 gp-access. */ | |
1c8f6a4d KLC |
12523 | /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between |
12524 | the read-only section and read-write section. */ | |
12525 | #define FAG_WINDOW (508 - 32) | |
35c08157 KLC |
12526 | |
12527 | /* An nds32_fag represent a gp-relative access. | |
12528 | We find best fp-base by using a sliding window | |
12529 | to find a base address which can cover most gp-access. */ | |
12530 | struct nds32_fag | |
12531 | { | |
12532 | struct nds32_fag *next; /* NULL-teminated linked list. */ | |
12533 | bfd_vma addr; /* The address of this fag. */ | |
12534 | Elf_Internal_Rela **relas; /* The relocations associated with this fag. | |
12535 | It is used for applying FP7U2_FLAG. */ | |
12536 | int count; /* How many times this address is referred. | |
12537 | There should be exactly `count' relocations | |
12538 | in relas. */ | |
12539 | int relas_capcity; /* The buffer size of relas. | |
12540 | We use an array instead of linked-list, | |
12541 | and realloc is used to adjust buffer size. */ | |
12542 | }; | |
12543 | ||
12544 | static void | |
12545 | nds32_fag_init (struct nds32_fag *head) | |
12546 | { | |
12547 | memset (head, 0, sizeof (struct nds32_fag)); | |
12548 | } | |
12549 | ||
12550 | static void | |
12551 | nds32_fag_verify (struct nds32_fag *head) | |
12552 | { | |
12553 | struct nds32_fag *iter; | |
12554 | struct nds32_fag *prev; | |
12555 | ||
12556 | prev = NULL; | |
12557 | iter = head->next; | |
12558 | while (iter) | |
12559 | { | |
12560 | if (prev && prev->addr >= iter->addr) | |
12561 | puts ("Bug in fp-as-gp insertion."); | |
12562 | prev = iter; | |
12563 | iter = iter->next; | |
12564 | } | |
12565 | } | |
12566 | ||
12567 | /* Insert a fag in ascending order. | |
12568 | If a fag of the same address already exists, | |
12569 | they are chained by relas array. */ | |
12570 | ||
12571 | static void | |
12572 | nds32_fag_insert (struct nds32_fag *head, bfd_vma addr, | |
12573 | Elf_Internal_Rela * rel) | |
12574 | { | |
12575 | struct nds32_fag *iter; | |
12576 | struct nds32_fag *new_fag; | |
12577 | const int INIT_RELAS_CAP = 4; | |
12578 | ||
12579 | for (iter = head; | |
12580 | iter->next && iter->next->addr <= addr; | |
12581 | iter = iter->next) | |
12582 | /* Find somewhere to insert. */ ; | |
12583 | ||
12584 | /* `iter' will be equal to `head' if the list is empty. */ | |
12585 | if (iter != head && iter->addr == addr) | |
12586 | { | |
12587 | /* The address exists in the list. | |
12588 | Insert `rel' into relocation list, relas. */ | |
12589 | ||
12590 | /* Check whether relas is big enough. */ | |
12591 | if (iter->count >= iter->relas_capcity) | |
12592 | { | |
12593 | iter->relas_capcity *= 2; | |
12594 | iter->relas = bfd_realloc | |
12595 | (iter->relas, iter->relas_capcity * sizeof (void *)); | |
12596 | } | |
12597 | iter->relas[iter->count++] = rel; | |
12598 | return; | |
12599 | } | |
12600 | ||
12601 | /* This is a new address. Create a fag node for it. */ | |
12602 | new_fag = bfd_malloc (sizeof (struct nds32_fag)); | |
12603 | memset (new_fag, 0, sizeof (*new_fag)); | |
12604 | new_fag->addr = addr; | |
12605 | new_fag->count = 1; | |
12606 | new_fag->next = iter->next; | |
12607 | new_fag->relas_capcity = INIT_RELAS_CAP; | |
12608 | new_fag->relas = (Elf_Internal_Rela **) | |
12609 | bfd_malloc (new_fag->relas_capcity * sizeof (void *)); | |
12610 | new_fag->relas[0] = rel; | |
12611 | iter->next = new_fag; | |
12612 | ||
12613 | nds32_fag_verify (head); | |
12614 | } | |
12615 | ||
12616 | static void | |
12617 | nds32_fag_free_list (struct nds32_fag *head) | |
12618 | { | |
12619 | struct nds32_fag *iter; | |
12620 | ||
12621 | iter = head->next; | |
12622 | while (iter) | |
12623 | { | |
12624 | struct nds32_fag *tmp = iter; | |
12625 | iter = iter->next; | |
12626 | free (tmp->relas); | |
12627 | tmp->relas = NULL; | |
12628 | free (tmp); | |
12629 | } | |
12630 | } | |
12631 | ||
35c08157 KLC |
12632 | /* Find the best fp-base address. |
12633 | The relocation associated with that address is returned, | |
12634 | so we can track the symbol instead of a fixed address. | |
12635 | ||
12636 | When relaxation, the address of an datum may change, | |
12637 | because a text section is shrinked, so the data section | |
1c8f6a4d | 12638 | moves forward. If the aligments of text and data section |
35c08157 KLC |
12639 | are different, their distance may change too. |
12640 | Therefore, tracking a fixed address is not appriate. */ | |
12641 | ||
12642 | static int | |
12643 | nds32_fag_find_base (struct nds32_fag *head, struct nds32_fag **bestpp) | |
12644 | { | |
12645 | struct nds32_fag *base; /* First fag in the window. */ | |
12646 | struct nds32_fag *last; /* First fag outside the window. */ | |
12647 | int accu = 0; /* Usage accumulation. */ | |
12648 | struct nds32_fag *best; /* Best fag. */ | |
12649 | int baccu = 0; /* Best accumulation. */ | |
12650 | ||
12651 | /* Use first fag for initial, and find the last fag in the window. | |
12652 | ||
12653 | In each iteration, we could simply subtract previous fag | |
12654 | and accumulate following fags which are inside the window, | |
12655 | untill we each the end. */ | |
12656 | ||
1c8f6a4d KLC |
12657 | if (head->next == NULL) |
12658 | { | |
12659 | *bestpp = NULL; | |
12660 | return 0; | |
12661 | } | |
35c08157 KLC |
12662 | |
12663 | /* Initialize base. */ | |
12664 | base = head->next; | |
12665 | best = base; | |
12666 | for (last = base; | |
12667 | last && last->addr < base->addr + FAG_WINDOW; | |
12668 | last = last->next) | |
12669 | accu += last->count; | |
12670 | ||
12671 | baccu = accu; | |
12672 | ||
12673 | /* Record the best base in each iteration. */ | |
12674 | while (base->next) | |
1c8f6a4d KLC |
12675 | { |
12676 | accu -= base->count; | |
12677 | base = base->next; | |
12678 | /* Account fags in window. */ | |
12679 | for (/* Nothing. */; | |
12680 | last && last->addr < base->addr + FAG_WINDOW; | |
12681 | last = last->next) | |
12682 | accu += last->count; | |
12683 | ||
12684 | /* A better fp-base? */ | |
12685 | if (accu > baccu) | |
12686 | { | |
12687 | best = base; | |
12688 | baccu = accu; | |
12689 | } | |
12690 | } | |
35c08157 KLC |
12691 | |
12692 | if (bestpp) | |
12693 | *bestpp = best; | |
12694 | return baccu; | |
12695 | } | |
12696 | ||
12697 | /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses, | |
12698 | so we can convert it fo fp-relative access later. | |
12699 | `best_fag' is the best fp-base. Only those inside the window | |
12700 | of best_fag is applied the flag. */ | |
12701 | ||
12702 | static bfd_boolean | |
12703 | nds32_fag_mark_relax (struct bfd_link_info *link_info, | |
fbaf61ad | 12704 | asection *sec, struct nds32_fag *best_fag, |
35c08157 KLC |
12705 | Elf_Internal_Rela *internal_relocs, |
12706 | Elf_Internal_Rela *irelend) | |
12707 | { | |
12708 | struct nds32_fag *ifag; | |
12709 | bfd_vma best_fpbase, gp; | |
12710 | bfd *output_bfd; | |
12711 | ||
fbaf61ad | 12712 | output_bfd = sec->output_section->owner; |
35c08157 KLC |
12713 | nds32_elf_final_sda_base (output_bfd, link_info, &gp, FALSE); |
12714 | best_fpbase = best_fag->addr; | |
12715 | ||
1c8f6a4d KLC |
12716 | if (best_fpbase > gp + sdata_range[1][1] |
12717 | || best_fpbase < gp - sdata_range[1][0]) | |
35c08157 KLC |
12718 | return FALSE; |
12719 | ||
12720 | /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag, | |
12721 | so we know they can be converted to lwi37.fp. */ | |
12722 | for (ifag = best_fag; | |
12723 | ifag && ifag->addr < best_fpbase + FAG_WINDOW; ifag = ifag->next) | |
12724 | { | |
12725 | int i; | |
12726 | ||
12727 | for (i = 0; i < ifag->count; i++) | |
12728 | { | |
12729 | Elf_Internal_Rela *insn16_rel; | |
12730 | Elf_Internal_Rela *fag_rel; | |
12731 | ||
12732 | fag_rel = ifag->relas[i]; | |
12733 | ||
12734 | /* Only if this is within the WINDOWS, FP7U2_FLAG | |
12735 | is applied. */ | |
12736 | ||
12737 | insn16_rel = find_relocs_at_address | |
12738 | (fag_rel, internal_relocs, irelend, R_NDS32_INSN16); | |
12739 | ||
12740 | if (insn16_rel != irelend) | |
12741 | insn16_rel->r_addend = R_NDS32_INSN16_FP7U2_FLAG; | |
12742 | } | |
12743 | } | |
12744 | return TRUE; | |
12745 | } | |
12746 | ||
1c8f6a4d KLC |
12747 | /* Reset INSN16 to clean fp as gp. */ |
12748 | ||
12749 | static void | |
12750 | nds32_fag_unmark_relax (struct nds32_fag *fag, | |
12751 | Elf_Internal_Rela *internal_relocs, | |
12752 | Elf_Internal_Rela *irelend) | |
12753 | { | |
12754 | struct nds32_fag *ifag; | |
12755 | int i; | |
12756 | Elf_Internal_Rela *insn16_rel; | |
12757 | Elf_Internal_Rela *fag_rel; | |
12758 | ||
12759 | for (ifag = fag; ifag; ifag = ifag->next) | |
12760 | { | |
12761 | for (i = 0; i < ifag->count; i++) | |
12762 | { | |
12763 | fag_rel = ifag->relas[i]; | |
12764 | ||
12765 | /* Restore the INSN16 relocation. */ | |
12766 | insn16_rel = find_relocs_at_address | |
12767 | (fag_rel, internal_relocs, irelend, R_NDS32_INSN16); | |
12768 | ||
12769 | if (insn16_rel != irelend) | |
12770 | insn16_rel->r_addend &= ~R_NDS32_INSN16_FP7U2_FLAG; | |
12771 | } | |
12772 | } | |
12773 | } | |
12774 | ||
35c08157 KLC |
12775 | /* This is the main function of fp-as-gp optimization. |
12776 | It should be called by relax_section. */ | |
12777 | ||
12778 | static bfd_boolean | |
12779 | nds32_relax_fp_as_gp (struct bfd_link_info *link_info, | |
12780 | bfd *abfd, asection *sec, | |
12781 | Elf_Internal_Rela *internal_relocs, | |
12782 | Elf_Internal_Rela *irelend, | |
12783 | Elf_Internal_Sym *isymbuf) | |
12784 | { | |
12785 | Elf_Internal_Rela *begin_rel = NULL; | |
12786 | Elf_Internal_Rela *irel; | |
12787 | struct nds32_fag fag_head; | |
12788 | Elf_Internal_Shdr *symtab_hdr; | |
12789 | bfd_byte *contents; | |
1c8f6a4d | 12790 | bfd_boolean ifc_inside = FALSE; |
35c08157 KLC |
12791 | |
12792 | /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */ | |
12793 | ||
12794 | /* Per-function fp-base selection. | |
12795 | 1. Create a list for all the gp-relative access. | |
12796 | 2. Base on those gp-relative address, | |
12797 | find a fp-base which can cover most access. | |
12798 | 3. Use the fp-base for fp-as-gp relaxation. | |
12799 | ||
12800 | NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times), | |
12801 | we should | |
12802 | 1. delete the `la $fp, _FP_BASE_' instruction and | |
12803 | 2. not convert lwi.gp to lwi37.fp. | |
12804 | ||
12805 | To delete the _FP_BASE_ instruction, we simply apply | |
12806 | R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it. | |
12807 | ||
12808 | To suppress the conversion, we simply NOT to apply | |
12809 | R_NDS32_INSN16_FP7U2_FLAG flag. */ | |
12810 | ||
12811 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
12812 | ||
0c4bd9d9 | 12813 | if (!nds32_get_section_contents (abfd, sec, &contents, TRUE) |
35c08157 KLC |
12814 | || !nds32_get_local_syms (abfd, sec, &isymbuf)) |
12815 | return FALSE; | |
12816 | ||
12817 | /* Check whether it is worth for fp-as-gp optimization, | |
12818 | i.e., at least 3 gp-load. | |
12819 | ||
12820 | Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT | |
12821 | apply this optimization. */ | |
12822 | ||
12823 | for (irel = internal_relocs; irel < irelend; irel++) | |
12824 | { | |
12825 | /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region. | |
12826 | One we enter the begin of the region, we track all the LW/ST | |
12827 | instructions, so when we leave the region, we try to find | |
12828 | the best fp-base address for those LW/ST instructions. */ | |
12829 | ||
12830 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
12831 | && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
12832 | { | |
12833 | /* Begin of the region. */ | |
12834 | if (begin_rel) | |
695344c0 | 12835 | /* xgettext:c-format */ |
38f14ab8 | 12836 | _bfd_error_handler (_("%pB: nested OMIT_FP in %pA"), abfd, sec); |
35c08157 KLC |
12837 | |
12838 | begin_rel = irel; | |
12839 | nds32_fag_init (&fag_head); | |
1c8f6a4d | 12840 | ifc_inside = FALSE; |
35c08157 KLC |
12841 | } |
12842 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END | |
12843 | && (irel->r_addend & R_NDS32_RELAX_REGION_OMIT_FP_FLAG)) | |
12844 | { | |
12845 | int accu; | |
1c8f6a4d | 12846 | struct nds32_fag *best_fag, *tmp_fag; |
35c08157 KLC |
12847 | int dist; |
12848 | ||
12849 | /* End of the region. | |
12850 | Check whether it is worth to do fp-as-gp. */ | |
12851 | ||
12852 | if (begin_rel == NULL) | |
12853 | { | |
695344c0 | 12854 | /* xgettext:c-format */ |
38f14ab8 AM |
12855 | _bfd_error_handler (_("%pB: unmatched OMIT_FP in %pA"), |
12856 | abfd, sec); | |
35c08157 KLC |
12857 | continue; |
12858 | } | |
12859 | ||
12860 | accu = nds32_fag_find_base (&fag_head, &best_fag); | |
12861 | ||
1c8f6a4d KLC |
12862 | /* Clean FP7U2_FLAG because they may set ever. */ |
12863 | tmp_fag = fag_head.next; | |
12864 | nds32_fag_unmark_relax (tmp_fag, internal_relocs, irelend); | |
12865 | ||
35c08157 KLC |
12866 | /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */ |
12867 | if (accu < FAG_THRESHOLD | |
fbaf61ad | 12868 | || !nds32_fag_mark_relax (link_info, sec, best_fag, |
35c08157 KLC |
12869 | internal_relocs, irelend)) |
12870 | { | |
12871 | /* Not worth to do fp-as-gp. */ | |
12872 | begin_rel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG; | |
12873 | begin_rel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG; | |
12874 | irel->r_addend |= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG; | |
12875 | irel->r_addend &= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG; | |
12876 | nds32_fag_free_list (&fag_head); | |
12877 | begin_rel = NULL; | |
12878 | continue; | |
12879 | } | |
12880 | ||
12881 | /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler, | |
12882 | so we use it to record the distance to the reloction of best | |
12883 | fp-base. */ | |
12884 | dist = best_fag->relas[0] - begin_rel; | |
12885 | BFD_ASSERT (dist > 0 && dist < 0xffffff); | |
12886 | /* Use high 16 bits of addend to record the _FP_BASE_ matched | |
12887 | relocation. And get the base value when relocating. */ | |
1c8f6a4d | 12888 | begin_rel->r_addend &= (0x1 << 16) - 1; |
35c08157 KLC |
12889 | begin_rel->r_addend |= dist << 16; |
12890 | ||
12891 | nds32_fag_free_list (&fag_head); | |
12892 | begin_rel = NULL; | |
12893 | } | |
12894 | ||
1c8f6a4d | 12895 | if (begin_rel == NULL || ifc_inside) |
35c08157 KLC |
12896 | /* Skip if we are not in the region of fp-as-gp. */ |
12897 | continue; | |
12898 | ||
12899 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S2_RELA | |
12900 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA17S2_RELA) | |
12901 | { | |
12902 | bfd_vma addr; | |
12903 | uint32_t insn; | |
12904 | ||
12905 | /* A gp-relative access is found. Insert it to the fag-list. */ | |
12906 | ||
12907 | /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */ | |
12908 | insn = bfd_getb32 (contents + irel->r_offset); | |
12909 | if (!N32_IS_RT3 (insn)) | |
12910 | continue; | |
12911 | ||
12912 | addr = calculate_memory_address (abfd, irel, isymbuf, symtab_hdr); | |
12913 | nds32_fag_insert (&fag_head, addr, irel); | |
12914 | } | |
12915 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA_FP7U2_RELA) | |
12916 | { | |
12917 | begin_rel = NULL; | |
12918 | } | |
1c8f6a4d KLC |
12919 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_17IFC_PCREL_RELA |
12920 | || ELF32_R_TYPE (irel->r_info) == R_NDS32_10IFCU_PCREL_RELA) | |
12921 | { | |
12922 | /* Suppress fp as gp when encounter ifc. */ | |
12923 | ifc_inside = TRUE; | |
12924 | } | |
35c08157 KLC |
12925 | } |
12926 | ||
12927 | return TRUE; | |
12928 | } | |
12929 | ||
12930 | /* Remove unused `la $fp, _FD_BASE_' instruction. */ | |
12931 | ||
12932 | static bfd_boolean | |
12933 | nds32_fag_remove_unused_fpbase (bfd *abfd, asection *sec, | |
12934 | Elf_Internal_Rela *internal_relocs, | |
12935 | Elf_Internal_Rela *irelend) | |
12936 | { | |
12937 | Elf_Internal_Rela *irel; | |
12938 | Elf_Internal_Shdr *symtab_hdr; | |
12939 | bfd_byte *contents = NULL; | |
12940 | nds32_elf_blank_t *relax_blank_list = NULL; | |
12941 | bfd_boolean result = TRUE; | |
12942 | bfd_boolean unused_region = FALSE; | |
12943 | ||
12944 | /* | |
fbaf61ad NC |
12945 | NOTE: Disable fp-as-gp if we encounter ifcall relocations: |
12946 | R_NDS32_17IFC_PCREL_RELA | |
12947 | R_NDS32_10IFCU_PCREL_RELA. */ | |
35c08157 KLC |
12948 | |
12949 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
0c4bd9d9 | 12950 | nds32_get_section_contents (abfd, sec, &contents, TRUE); |
35c08157 KLC |
12951 | |
12952 | for (irel = internal_relocs; irel < irelend; irel++) | |
12953 | { | |
12954 | /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP | |
12955 | we marked to in previous pass. | |
12956 | DO NOT scan relocations again, since we've alreadly decided it | |
12957 | and set the flag. */ | |
12958 | const char *syname; | |
12959 | int syndx; | |
12960 | uint32_t insn; | |
12961 | ||
12962 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_BEGIN | |
12963 | && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG)) | |
12964 | unused_region = TRUE; | |
12965 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_RELAX_REGION_END | |
12966 | && (irel->r_addend & R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG)) | |
12967 | unused_region = FALSE; | |
12968 | ||
12969 | /* We're not in the region. */ | |
12970 | if (!unused_region) | |
12971 | continue; | |
12972 | ||
12973 | /* _FP_BASE_ must be a GLOBAL symbol. */ | |
12974 | syndx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
12975 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
12976 | continue; | |
12977 | ||
12978 | /* The symbol name must be _FP_BASE_. */ | |
12979 | syname = elf_sym_hashes (abfd)[syndx]->root.root.string; | |
12980 | if (strcmp (syname, FP_BASE_NAME) != 0) | |
12981 | continue; | |
12982 | ||
12983 | if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA19S0_RELA) | |
12984 | { | |
12985 | /* addi.gp $fp, -256 */ | |
12986 | insn = bfd_getb32 (contents + irel->r_offset); | |
12987 | if (insn != INSN_ADDIGP_TO_FP) | |
12988 | continue; | |
12989 | } | |
12990 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_SDA15S0_RELA) | |
12991 | { | |
12992 | /* addi $fp, $gp, -256 */ | |
12993 | insn = bfd_getb32 (contents + irel->r_offset); | |
12994 | if (insn != INSN_ADDI_GP_TO_FP) | |
12995 | continue; | |
12996 | } | |
12997 | else if (ELF32_R_TYPE (irel->r_info) == R_NDS32_20_RELA) | |
12998 | { | |
12999 | /* movi $fp, FP_BASE */ | |
13000 | insn = bfd_getb32 (contents + irel->r_offset); | |
13001 | if (insn != INSN_MOVI_TO_FP) | |
13002 | continue; | |
13003 | } | |
13004 | else | |
13005 | continue; | |
13006 | ||
13007 | /* We got here because a FP_BASE instruction is found. */ | |
13008 | if (!insert_nds32_elf_blank_recalc_total | |
13009 | (&relax_blank_list, irel->r_offset, 4)) | |
13010 | goto error_return; | |
13011 | } | |
13012 | ||
dc1e8a47 | 13013 | finish: |
35c08157 KLC |
13014 | if (relax_blank_list) |
13015 | { | |
13016 | nds32_elf_relax_delete_blanks (abfd, sec, relax_blank_list); | |
13017 | relax_blank_list = NULL; | |
13018 | } | |
13019 | return result; | |
13020 | ||
dc1e8a47 | 13021 | error_return: |
35c08157 KLC |
13022 | result = FALSE; |
13023 | goto finish; | |
13024 | } | |
1c8f6a4d KLC |
13025 | |
13026 | /* This is a version of bfd_generic_get_relocated_section_contents. | |
13027 | We need this variety because relaxation will modify the dwarf | |
13028 | infomation. When there is undefined symbol reference error mesage, | |
13029 | linker need to dump line number where the symbol be used. However | |
13030 | the address is be relaxed, it can not get the original dwarf contents. | |
13031 | The variety only modify function call for reading in the section. */ | |
13032 | ||
13033 | static bfd_byte * | |
13034 | nds32_elf_get_relocated_section_contents (bfd *abfd, | |
13035 | struct bfd_link_info *link_info, | |
13036 | struct bfd_link_order *link_order, | |
13037 | bfd_byte *data, | |
13038 | bfd_boolean relocatable, | |
13039 | asymbol **symbols) | |
13040 | { | |
13041 | bfd *input_bfd = link_order->u.indirect.section->owner; | |
13042 | asection *input_section = link_order->u.indirect.section; | |
13043 | long reloc_size; | |
13044 | arelent **reloc_vector; | |
13045 | long reloc_count; | |
13046 | ||
13047 | reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); | |
13048 | if (reloc_size < 0) | |
13049 | return NULL; | |
13050 | ||
13051 | /* Read in the section. */ | |
0c4bd9d9 | 13052 | if (!nds32_get_section_contents (input_bfd, input_section, &data, FALSE)) |
1c8f6a4d KLC |
13053 | return NULL; |
13054 | ||
13055 | if (reloc_size == 0) | |
13056 | return data; | |
13057 | ||
13058 | reloc_vector = (arelent **) bfd_malloc (reloc_size); | |
13059 | if (reloc_vector == NULL) | |
13060 | return NULL; | |
13061 | ||
13062 | reloc_count = bfd_canonicalize_reloc (input_bfd, input_section, | |
13063 | reloc_vector, symbols); | |
13064 | if (reloc_count < 0) | |
13065 | goto error_return; | |
13066 | ||
13067 | if (reloc_count > 0) | |
13068 | { | |
13069 | arelent **parent; | |
13070 | for (parent = reloc_vector; *parent != NULL; parent++) | |
13071 | { | |
13072 | char *error_message = NULL; | |
13073 | asymbol *symbol; | |
13074 | bfd_reloc_status_type r; | |
13075 | ||
13076 | symbol = *(*parent)->sym_ptr_ptr; | |
13077 | if (symbol->section && discarded_section (symbol->section)) | |
13078 | { | |
0930cb30 | 13079 | bfd_vma off; |
1c8f6a4d KLC |
13080 | static reloc_howto_type none_howto |
13081 | = HOWTO (0, 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, | |
13082 | "unused", FALSE, 0, 0, FALSE); | |
13083 | ||
bb294208 AM |
13084 | off = (*parent)->address * OCTETS_PER_BYTE (input_bfd, |
13085 | input_section); | |
0930cb30 AM |
13086 | _bfd_clear_contents ((*parent)->howto, input_bfd, |
13087 | input_section, data, off); | |
1c8f6a4d KLC |
13088 | (*parent)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
13089 | (*parent)->addend = 0; | |
13090 | (*parent)->howto = &none_howto; | |
13091 | r = bfd_reloc_ok; | |
13092 | } | |
13093 | else | |
13094 | r = bfd_perform_relocation (input_bfd, *parent, data, | |
13095 | input_section, | |
13096 | relocatable ? abfd : NULL, | |
13097 | &error_message); | |
13098 | ||
13099 | if (relocatable) | |
13100 | { | |
13101 | asection *os = input_section->output_section; | |
13102 | ||
13103 | /* A partial link, so keep the relocs. */ | |
13104 | os->orelocation[os->reloc_count] = *parent; | |
13105 | os->reloc_count++; | |
13106 | } | |
13107 | ||
13108 | if (r != bfd_reloc_ok) | |
13109 | { | |
13110 | switch (r) | |
13111 | { | |
13112 | case bfd_reloc_undefined: | |
1a72702b AM |
13113 | (*link_info->callbacks->undefined_symbol) |
13114 | (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
13115 | input_bfd, input_section, (*parent)->address, TRUE); | |
1c8f6a4d KLC |
13116 | break; |
13117 | case bfd_reloc_dangerous: | |
13118 | BFD_ASSERT (error_message != NULL); | |
1a72702b AM |
13119 | (*link_info->callbacks->reloc_dangerous) |
13120 | (link_info, error_message, | |
13121 | input_bfd, input_section, (*parent)->address); | |
1c8f6a4d KLC |
13122 | break; |
13123 | case bfd_reloc_overflow: | |
1a72702b AM |
13124 | (*link_info->callbacks->reloc_overflow) |
13125 | (link_info, NULL, | |
13126 | bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
13127 | (*parent)->howto->name, (*parent)->addend, | |
13128 | input_bfd, input_section, (*parent)->address); | |
1c8f6a4d KLC |
13129 | break; |
13130 | case bfd_reloc_outofrange: | |
13131 | /* PR ld/13730: | |
13132 | This error can result when processing some partially | |
13133 | complete binaries. Do not abort, but issue an error | |
13134 | message instead. */ | |
13135 | link_info->callbacks->einfo | |
695344c0 | 13136 | /* xgettext:c-format */ |
c1c8c1ef | 13137 | (_("%X%P: %pB(%pA): relocation \"%pR\" goes out of range\n"), |
1c8f6a4d KLC |
13138 | abfd, input_section, * parent); |
13139 | goto error_return; | |
13140 | ||
13141 | default: | |
13142 | abort (); | |
13143 | break; | |
13144 | } | |
13145 | } | |
13146 | } | |
13147 | } | |
13148 | ||
13149 | free (reloc_vector); | |
13150 | return data; | |
13151 | ||
dc1e8a47 | 13152 | error_return: |
1c8f6a4d KLC |
13153 | free (reloc_vector); |
13154 | return NULL; | |
13155 | } | |
fbaf61ad NC |
13156 | |
13157 | /* Check target symbol. */ | |
13158 | ||
13159 | static bfd_boolean | |
13160 | nds32_elf_is_target_special_symbol (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym) | |
13161 | { | |
13162 | if (!sym || !sym->name || sym->name[0] != '$') | |
13163 | return FALSE; | |
13164 | return TRUE; | |
13165 | } | |
13166 | ||
13167 | /* nds32 find maybe function sym. Ignore target special symbol | |
13168 | first, and then go the general function. */ | |
13169 | ||
13170 | static bfd_size_type | |
13171 | nds32_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
13172 | bfd_vma *code_off) | |
13173 | { | |
13174 | if (nds32_elf_is_target_special_symbol (NULL, (asymbol *) sym)) | |
13175 | return 0; | |
13176 | ||
13177 | return _bfd_elf_maybe_function_sym (sym, sec, code_off); | |
13178 | } | |
35c08157 | 13179 | \f |
35c08157 | 13180 | |
fbaf61ad NC |
13181 | /* Do TLS model conversion. */ |
13182 | ||
13183 | typedef struct relax_group_list_t | |
13184 | { | |
13185 | Elf_Internal_Rela *relo; | |
13186 | struct relax_group_list_t *next; | |
13187 | struct relax_group_list_t *next_sibling; | |
13188 | int id; | |
13189 | } relax_group_list_t; | |
13190 | ||
13191 | int | |
13192 | list_insert (relax_group_list_t *pHead, Elf_Internal_Rela *pElem); | |
13193 | ||
13194 | int | |
13195 | list_insert_sibling (relax_group_list_t *pNode, Elf_Internal_Rela *pElem); | |
13196 | ||
13197 | void | |
13198 | dump_chain (relax_group_list_t *pHead); | |
13199 | ||
13200 | int | |
13201 | list_insert (relax_group_list_t *pHead, Elf_Internal_Rela *pElem) | |
13202 | { | |
13203 | relax_group_list_t *pNext = pHead; | |
13204 | ||
13205 | /* Find place. */ | |
13206 | while (pNext->next) | |
13207 | { | |
13208 | if (pNext->next->id > (int) pElem->r_addend) | |
13209 | break; | |
13210 | ||
13211 | pNext = pNext->next; | |
13212 | } | |
13213 | ||
13214 | /* Insert node. */ | |
13215 | relax_group_list_t *pNew = bfd_malloc (sizeof (relax_group_list_t)); | |
13216 | if (!pNew) | |
13217 | return FALSE; | |
13218 | ||
13219 | relax_group_list_t *tmp = pNext->next; | |
13220 | pNext->next = pNew; | |
13221 | ||
13222 | pNew->id = pElem->r_addend; | |
13223 | pNew->relo = pElem; | |
13224 | pNew->next = tmp; | |
13225 | pNew->next_sibling = NULL; | |
13226 | ||
13227 | return TRUE; | |
13228 | } | |
13229 | ||
13230 | int | |
13231 | list_insert_sibling (relax_group_list_t *pNode, Elf_Internal_Rela *pElem) | |
13232 | { | |
13233 | relax_group_list_t *pNext = pNode; | |
13234 | ||
13235 | /* Find place. */ | |
13236 | while (pNext->next_sibling) | |
13237 | { | |
13238 | pNext = pNext->next_sibling; | |
13239 | } | |
13240 | ||
13241 | /* Insert node. */ | |
13242 | relax_group_list_t *pNew = bfd_malloc (sizeof (relax_group_list_t)); | |
13243 | if (!pNew) | |
13244 | return FALSE; | |
13245 | ||
13246 | relax_group_list_t *tmp = pNext->next_sibling; | |
13247 | pNext->next_sibling = pNew; | |
13248 | ||
13249 | pNew->id = -1; | |
13250 | pNew->relo = pElem; | |
13251 | pNew->next = NULL; | |
13252 | pNew->next_sibling = tmp; | |
13253 | ||
13254 | return TRUE; | |
13255 | } | |
13256 | ||
13257 | void | |
13258 | dump_chain (relax_group_list_t *pHead) | |
13259 | { | |
13260 | relax_group_list_t *pNext = pHead->next; | |
13261 | while (pNext) | |
13262 | { | |
13263 | printf("group %d @ 0x%08x", pNext->id, (unsigned)pNext->relo->r_offset); | |
13264 | relax_group_list_t *pNextSib = pNext->next_sibling; | |
13265 | while (pNextSib) | |
13266 | { | |
13267 | printf(", %d", (unsigned) ELF32_R_TYPE (pNextSib->relo->r_info)); | |
13268 | pNextSib = pNextSib->next_sibling; | |
13269 | } | |
13270 | pNext = pNext->next; | |
13271 | printf("\n"); | |
13272 | } | |
13273 | } | |
13274 | ||
13275 | /* Check R_NDS32_RELAX_GROUP of each section. | |
13276 | There might be multiple sections in one object file. */ | |
13277 | ||
13278 | int | |
13279 | elf32_nds32_check_relax_group (bfd *abfd, asection *asec) | |
13280 | { | |
13281 | elf32_nds32_relax_group_t *relax_group_ptr = | |
13282 | elf32_nds32_relax_group_ptr (abfd); | |
13283 | ||
13284 | int min_id = relax_group_ptr->min_id; | |
13285 | int max_id = relax_group_ptr->max_id; | |
13286 | ||
13287 | Elf_Internal_Rela *rel; | |
13288 | Elf_Internal_Rela *relend; | |
13289 | Elf_Internal_Rela *relocs; | |
13290 | enum elf_nds32_reloc_type rtype; | |
13291 | ||
13292 | do | |
13293 | { | |
13294 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13295 | relocs = _bfd_elf_link_read_relocs (abfd, asec, NULL, NULL, | |
13296 | TRUE /* keep_memory */); | |
13297 | if (relocs == NULL) | |
13298 | break; | |
13299 | ||
13300 | /* Check R_NDS32_RELAX_GROUP. */ | |
13301 | relend = relocs + asec->reloc_count; | |
13302 | for (rel = relocs; rel < relend; rel++) | |
13303 | { | |
13304 | int id; | |
13305 | rtype = ELF32_R_TYPE (rel->r_info); | |
13306 | if (rtype != R_NDS32_RELAX_GROUP) | |
13307 | continue; | |
13308 | ||
13309 | id = rel->r_addend; | |
13310 | if (id < min_id) | |
13311 | min_id = id; | |
13312 | else if (id > max_id) | |
13313 | max_id = id; | |
13314 | } | |
13315 | } | |
13316 | while (FALSE); | |
13317 | ||
c9594989 | 13318 | if (elf_section_data (asec)->relocs != relocs) |
fbaf61ad NC |
13319 | free (relocs); |
13320 | ||
13321 | if ((min_id != relax_group_ptr->min_id) | |
13322 | || (max_id != relax_group_ptr->max_id)) | |
13323 | { | |
13324 | relax_group_ptr->count = max_id - min_id + 1; | |
13325 | BFD_ASSERT(min_id <= relax_group_ptr->min_id); | |
13326 | relax_group_ptr->min_id = min_id; | |
13327 | BFD_ASSERT(max_id >= relax_group_ptr->max_id); | |
13328 | relax_group_ptr->max_id = max_id; | |
13329 | } | |
13330 | ||
13331 | return relax_group_ptr->count; | |
13332 | } | |
13333 | ||
13334 | /* Reorder RELAX_GROUP ID when command line option '-r' is applied. */ | |
13335 | struct section_id_list_t *relax_group_section_id_list = NULL; | |
13336 | ||
13337 | struct section_id_list_t * | |
13338 | elf32_nds32_lookup_section_id (int id, struct section_id_list_t **lst_ptr) | |
13339 | { | |
13340 | struct section_id_list_t *result = NULL; | |
13341 | struct section_id_list_t *lst = *lst_ptr; | |
13342 | ||
13343 | if (NULL == lst) | |
13344 | { | |
13345 | result = (struct section_id_list_t *) calloc | |
13346 | (1, sizeof (struct section_id_list_t)); | |
13347 | BFD_ASSERT (result); /* Feed me. */ | |
13348 | result->id = id; | |
13349 | *lst_ptr = result; | |
13350 | } | |
13351 | else | |
13352 | { | |
13353 | struct section_id_list_t *cur = lst; | |
13354 | struct section_id_list_t *prv = NULL; | |
13355 | struct section_id_list_t *sec = NULL; | |
13356 | ||
13357 | while (cur) | |
13358 | { | |
13359 | if (cur->id < id) | |
13360 | { | |
13361 | prv = cur; | |
13362 | cur = cur->next; | |
13363 | continue; | |
13364 | } | |
13365 | ||
13366 | if (cur->id > id) | |
13367 | { | |
13368 | cur = NULL; /* To insert after prv. */ | |
13369 | sec = cur; /* In case prv == NULL. */ | |
13370 | } | |
13371 | ||
13372 | break; | |
13373 | } | |
13374 | ||
13375 | if (NULL == cur) | |
13376 | { | |
13377 | /* Insert after prv. */ | |
13378 | result = (struct section_id_list_t *) calloc | |
13379 | (1, sizeof (struct section_id_list_t)); | |
13380 | BFD_ASSERT (result); /* Feed me. */ | |
13381 | result->id = id; | |
13382 | if (NULL != prv) | |
13383 | { | |
13384 | result->next = prv->next; | |
13385 | prv->next = result; | |
13386 | } | |
13387 | else | |
13388 | { | |
13389 | *lst_ptr = result; | |
13390 | result->next = sec; | |
13391 | } | |
13392 | } | |
13393 | } | |
13394 | ||
13395 | return result; | |
13396 | } | |
13397 | ||
13398 | int | |
13399 | elf32_nds32_unify_relax_group (bfd *abfd, asection *asec) | |
13400 | { | |
13401 | static int next_relax_group_bias = 0; | |
13402 | ||
13403 | elf32_nds32_relax_group_t *relax_group_ptr = | |
13404 | elf32_nds32_relax_group_ptr (abfd); | |
13405 | ||
13406 | bfd_boolean result = TRUE; | |
13407 | Elf_Internal_Rela *rel; | |
13408 | Elf_Internal_Rela *relend; | |
13409 | Elf_Internal_Rela *relocs = NULL; | |
13410 | enum elf_nds32_reloc_type rtype; | |
13411 | struct section_id_list_t *node = NULL; | |
13412 | int count = 0; | |
13413 | ||
13414 | do | |
13415 | { | |
13416 | if (0 == relax_group_ptr->count) | |
13417 | break; | |
13418 | ||
13419 | /* Check if this section has been handled. */ | |
13420 | node = elf32_nds32_lookup_section_id (asec->id, &relax_group_section_id_list); | |
13421 | if (NULL == node) | |
13422 | break; /* Hit, the section id has handled. */ | |
13423 | ||
13424 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13425 | relocs = _bfd_elf_link_read_relocs (abfd, asec, NULL, NULL, | |
13426 | TRUE /* keep_memory */); | |
13427 | if (relocs == NULL) | |
13428 | { | |
13429 | BFD_ASSERT (0); /* feed me */ | |
13430 | break; | |
13431 | } | |
13432 | ||
13433 | /* Allocate group id bias for this bfd! */ | |
13434 | if (0 == relax_group_ptr->init) | |
13435 | { | |
13436 | relax_group_ptr->bias = next_relax_group_bias; | |
13437 | next_relax_group_bias += relax_group_ptr->count; | |
13438 | relax_group_ptr->init = 1; | |
13439 | } | |
13440 | ||
13441 | /* Reorder relax group groups. */ | |
13442 | relend = relocs + asec->reloc_count; | |
13443 | for (rel = relocs; rel < relend; rel++) | |
13444 | { | |
13445 | rtype = ELF32_R_TYPE(rel->r_info); | |
13446 | if (rtype != R_NDS32_RELAX_GROUP) | |
13447 | continue; | |
13448 | ||
13449 | /* Change it. */ | |
13450 | rel->r_addend += relax_group_ptr->bias; | |
13451 | /* Debugging count. */ | |
13452 | count++; | |
13453 | } | |
13454 | } | |
13455 | while (FALSE); | |
13456 | ||
c9594989 | 13457 | if (elf_section_data (asec)->relocs != relocs) |
fbaf61ad NC |
13458 | free (relocs); |
13459 | ||
13460 | return result; | |
13461 | } | |
13462 | ||
13463 | int | |
13464 | nds32_elf_unify_tls_model (bfd *inbfd, asection *insec, bfd_byte *incontents, | |
13465 | struct bfd_link_info *lnkinfo) | |
13466 | { | |
13467 | bfd_boolean result = TRUE; | |
13468 | Elf_Internal_Rela *irel; | |
13469 | Elf_Internal_Rela *irelend; | |
13470 | Elf_Internal_Rela *internal_relocs; | |
13471 | unsigned long r_symndx; | |
13472 | enum elf_nds32_reloc_type r_type; | |
13473 | ||
13474 | Elf_Internal_Sym *local_syms = NULL; | |
13475 | bfd_byte *contents = NULL; | |
13476 | ||
13477 | relax_group_list_t chain = { .id = -1, .next = NULL, .next_sibling = NULL }; | |
13478 | ||
13479 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (inbfd)->symtab_hdr; | |
13480 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
13481 | sym_hashes = elf_sym_hashes (inbfd); | |
13482 | sym_hashes_end = | |
13483 | sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
13484 | if (!elf_bad_symtab (inbfd)) | |
13485 | sym_hashes_end -= symtab_hdr->sh_info; | |
13486 | ||
13487 | /* Reorder RELAX_GROUP when command line option '-r' is applied. */ | |
13488 | if (bfd_link_relocatable (lnkinfo)) | |
13489 | { | |
13490 | elf32_nds32_unify_relax_group (inbfd, insec); | |
13491 | return result; | |
13492 | } | |
13493 | ||
13494 | /* Relocations MUST be kept in memory, because relaxation adjust them. */ | |
13495 | internal_relocs = _bfd_elf_link_read_relocs (inbfd, insec, NULL, NULL, | |
13496 | TRUE /* keep_memory */); | |
13497 | if (internal_relocs == NULL) | |
13498 | goto error_return; | |
13499 | ||
13500 | irelend = internal_relocs + insec->reloc_count; | |
13501 | irel = find_relocs_at_address (internal_relocs, internal_relocs, | |
13502 | irelend, R_NDS32_RELAX_ENTRY); | |
13503 | if (irel == irelend) | |
13504 | goto finish; | |
13505 | ||
13506 | /* Chain/remove groups. */ | |
13507 | for (irel = internal_relocs; irel < irelend; irel++) | |
13508 | { | |
13509 | r_symndx = ELF32_R_SYM (irel->r_info); | |
13510 | r_type = ELF32_R_TYPE (irel->r_info); | |
13511 | if (r_type != R_NDS32_RELAX_GROUP) | |
13512 | continue; | |
13513 | ||
13514 | /* Remove it. */ | |
13515 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_NONE); | |
13516 | /* Chain it now. */ | |
13517 | if (!list_insert (&chain, irel)) | |
13518 | goto error_return; | |
13519 | } | |
13520 | ||
13521 | /* Collect group relocations. */ | |
13522 | /* Presume relocations are sorted. */ | |
13523 | relax_group_list_t *pNext = chain.next; | |
13524 | while (pNext) | |
13525 | { | |
13526 | for (irel = internal_relocs; irel < irelend; irel++) | |
13527 | { | |
13528 | if (irel->r_offset == pNext->relo->r_offset) | |
13529 | { | |
13530 | /* Ignore Non-TLS relocation types. */ | |
13531 | r_type = ELF32_R_TYPE (irel->r_info); | |
13532 | if ((R_NDS32_TLS_LE_HI20 > r_type) | |
13533 | || (R_NDS32_RELAX_ENTRY == r_type)) | |
13534 | continue; | |
13535 | ||
13536 | if (!list_insert_sibling (pNext, irel)) | |
13537 | goto error_return; | |
13538 | } | |
13539 | else if (irel->r_offset > pNext->relo->r_offset) | |
13540 | { | |
13541 | pNext = pNext->next; | |
13542 | if (!pNext) | |
13543 | break; | |
13544 | ||
13545 | bfd_vma current_offset = pNext->relo->r_offset; | |
13546 | if (irel->r_offset > current_offset) | |
13547 | irel = internal_relocs; /* restart from head */ | |
13548 | else | |
13549 | --irel; /* Check current irel again. */ | |
13550 | continue; | |
13551 | } | |
13552 | else | |
13553 | { | |
13554 | /* This shouldn't be reached. */ | |
13555 | } | |
13556 | } | |
13557 | if (pNext) | |
13558 | pNext = pNext->next; | |
13559 | } | |
13560 | ||
13561 | #ifdef DUBUG_VERBOSE | |
13562 | dump_chain(&chain); | |
13563 | #endif | |
13564 | ||
13565 | /* Get symbol table and section content. */ | |
13566 | if (incontents) | |
13567 | contents = incontents; | |
13568 | else if (!nds32_get_section_contents (inbfd, insec, &contents, TRUE) | |
13569 | || !nds32_get_local_syms (inbfd, insec, &local_syms)) | |
13570 | goto error_return; | |
13571 | ||
13572 | char *local_got_tls_type = elf32_nds32_local_got_tls_type (inbfd); | |
13573 | ||
13574 | /* Convert TLS model each group if necessary. */ | |
13575 | pNext = chain.next; | |
13576 | ||
13577 | int cur_grp_id = -1; | |
13578 | int sethi_rt = -1; | |
13579 | int add_rt = -1; | |
13580 | enum elf_nds32_tls_type tls_type, org_tls_type, eff_tls_type; | |
13581 | ||
13582 | tls_type = org_tls_type = eff_tls_type = 0; | |
13583 | ||
13584 | while (pNext) | |
13585 | { | |
13586 | relax_group_list_t *pNextSig = pNext->next_sibling; | |
13587 | while (pNextSig) | |
13588 | { | |
13589 | struct elf_link_hash_entry *h = NULL; | |
13590 | ||
13591 | irel = pNextSig->relo; | |
13592 | r_symndx = ELF32_R_SYM(irel->r_info); | |
13593 | r_type = ELF32_R_TYPE(irel->r_info); | |
13594 | ||
13595 | if (pNext->id != cur_grp_id) | |
13596 | { | |
13597 | cur_grp_id = pNext->id; | |
13598 | org_tls_type = get_tls_type (r_type, NULL); | |
13599 | if (r_symndx >= symtab_hdr->sh_info) | |
13600 | { | |
13601 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
13602 | while (h->root.type == bfd_link_hash_indirect | |
13603 | || h->root.type == bfd_link_hash_warning) | |
13604 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
13605 | tls_type = ((struct elf_nds32_link_hash_entry *) h)->tls_type; | |
13606 | } | |
13607 | else | |
13608 | { | |
13609 | tls_type = local_got_tls_type | |
13610 | ? local_got_tls_type[r_symndx] | |
13611 | : GOT_NORMAL; | |
13612 | } | |
13613 | ||
13614 | eff_tls_type = 1 << (fls (tls_type) - 1); | |
13615 | sethi_rt = N32_RT5(bfd_getb32 (contents + irel->r_offset)); | |
13616 | } | |
13617 | ||
13618 | if (eff_tls_type != org_tls_type) | |
13619 | { | |
13620 | switch (org_tls_type) | |
13621 | { | |
13622 | /* DESC to IEGP/IE/LE. */ | |
13623 | case GOT_TLS_DESC: | |
13624 | switch (eff_tls_type) | |
13625 | { | |
13626 | case GOT_TLS_IE: | |
13627 | switch (r_type) | |
13628 | { | |
13629 | case R_NDS32_TLS_DESC_HI20: | |
13630 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13631 | R_NDS32_TLS_IE_HI20); | |
13632 | break; | |
13633 | case R_NDS32_TLS_DESC_LO12: | |
13634 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13635 | R_NDS32_TLS_IE_LO12); | |
13636 | break; | |
13637 | case R_NDS32_TLS_DESC_ADD: | |
13638 | { | |
13639 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13640 | add_rt = N32_RT5 (insn); | |
13641 | insn = N32_TYPE2 (LWI, add_rt, sethi_rt, 0); | |
13642 | bfd_putb32 (insn, contents + irel->r_offset); | |
13643 | ||
13644 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13645 | } | |
13646 | break; | |
13647 | case R_NDS32_TLS_DESC_FUNC: | |
13648 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13649 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13650 | R_NDS32_RELAX_REMOVE); | |
13651 | break; | |
13652 | case R_NDS32_TLS_DESC_CALL: | |
13653 | { | |
13654 | uint32_t insn = N32_ALU1(ADD, REG_R0, add_rt, | |
13655 | REG_TP); | |
13656 | bfd_putb32 (insn, contents + irel->r_offset); | |
13657 | ||
13658 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13659 | } | |
13660 | break; | |
13661 | case R_NDS32_LOADSTORE: | |
13662 | case R_NDS32_PTR: | |
13663 | case R_NDS32_PTR_RESOLVED: | |
13664 | case R_NDS32_NONE: | |
13665 | case R_NDS32_LABEL: | |
13666 | break; | |
13667 | default: | |
13668 | BFD_ASSERT(0); | |
13669 | break; | |
13670 | } | |
13671 | break; | |
13672 | case GOT_TLS_IEGP: | |
13673 | switch (r_type) | |
13674 | { | |
13675 | case R_NDS32_TLS_DESC_HI20: | |
13676 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13677 | R_NDS32_TLS_IEGP_HI20); | |
13678 | break; | |
13679 | case R_NDS32_TLS_DESC_LO12: | |
13680 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13681 | R_NDS32_TLS_IEGP_LO12); | |
13682 | break; | |
13683 | case R_NDS32_TLS_DESC_ADD: | |
13684 | { | |
13685 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13686 | add_rt = N32_RT5 (insn); | |
13687 | insn = N32_MEM(LW, add_rt, sethi_rt, REG_GP, 0); | |
13688 | bfd_putb32 (insn, contents + irel->r_offset); | |
13689 | ||
13690 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13691 | } | |
13692 | break; | |
13693 | case R_NDS32_TLS_DESC_FUNC: | |
13694 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13695 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13696 | R_NDS32_RELAX_REMOVE); | |
13697 | break; | |
13698 | case R_NDS32_TLS_DESC_CALL: | |
13699 | { | |
13700 | uint32_t insn = N32_ALU1(ADD, REG_R0, add_rt, | |
13701 | REG_TP); | |
13702 | bfd_putb32 (insn, contents + irel->r_offset); | |
13703 | ||
13704 | irel->r_info = ELF32_R_INFO(r_symndx, R_NDS32_NONE); | |
13705 | } | |
13706 | break; | |
13707 | case R_NDS32_LOADSTORE: | |
13708 | case R_NDS32_PTR: | |
13709 | case R_NDS32_PTR_RESOLVED: | |
13710 | case R_NDS32_NONE: | |
13711 | case R_NDS32_LABEL: | |
13712 | break; | |
13713 | default: | |
13714 | BFD_ASSERT(0); | |
13715 | break; | |
13716 | } | |
13717 | break; | |
13718 | case GOT_TLS_LE: | |
13719 | switch (r_type) | |
13720 | { | |
13721 | case R_NDS32_TLS_DESC_HI20: | |
13722 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13723 | break; | |
13724 | case R_NDS32_TLS_DESC_LO12: | |
13725 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13726 | break; | |
13727 | case R_NDS32_TLS_DESC_ADD: | |
13728 | { | |
13729 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13730 | ||
13731 | add_rt = N32_RT5 (insn); | |
13732 | insn = N32_ALU1 (ADD, REG_R0, sethi_rt, REG_TP); | |
13733 | bfd_putb32 (insn, contents + irel->r_offset); | |
13734 | ||
13735 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_ADD); | |
13736 | } | |
13737 | break; | |
13738 | case R_NDS32_TLS_DESC_FUNC: | |
13739 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13740 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13741 | break; | |
13742 | case R_NDS32_TLS_DESC_CALL: | |
13743 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13744 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13745 | break; | |
13746 | case R_NDS32_LOADSTORE: | |
13747 | case R_NDS32_PTR: | |
13748 | case R_NDS32_PTR_RESOLVED: | |
13749 | case R_NDS32_NONE: | |
13750 | case R_NDS32_LABEL: | |
13751 | break; | |
13752 | default: | |
13753 | BFD_ASSERT(0); | |
13754 | break; | |
13755 | } | |
13756 | break; | |
13757 | default: | |
13758 | break; | |
13759 | } | |
13760 | break; | |
13761 | /* IEGP to IE/LE. */ | |
13762 | case GOT_TLS_IEGP: | |
13763 | switch (eff_tls_type) | |
13764 | { | |
13765 | case GOT_TLS_IE: | |
13766 | switch (r_type) | |
13767 | { | |
13768 | case R_NDS32_TLS_IEGP_HI20: | |
13769 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13770 | R_NDS32_TLS_IE_HI20); | |
13771 | break; | |
13772 | case R_NDS32_TLS_IEGP_LO12: | |
13773 | irel->r_info = ELF32_R_INFO(r_symndx, | |
13774 | R_NDS32_TLS_IE_LO12); | |
13775 | break; | |
13776 | case R_NDS32_PTR_RESOLVED: | |
13777 | { | |
13778 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13779 | ||
13780 | add_rt = N32_RT5 (insn); | |
13781 | insn = N32_TYPE2 (LWI, add_rt, sethi_rt, 0); | |
13782 | bfd_putb32 (insn, contents + irel->r_offset); | |
13783 | } | |
13784 | break; | |
13785 | case R_NDS32_TLS_IEGP_LW: | |
13786 | break; | |
13787 | case R_NDS32_LOADSTORE: | |
13788 | case R_NDS32_PTR: | |
13789 | case R_NDS32_NONE: | |
13790 | case R_NDS32_LABEL: | |
13791 | break; | |
13792 | default: | |
13793 | BFD_ASSERT(0); | |
13794 | break; | |
13795 | } | |
13796 | break; | |
13797 | case GOT_TLS_LE: | |
13798 | switch (r_type) | |
13799 | { | |
13800 | case R_NDS32_TLS_IEGP_HI20: | |
13801 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13802 | break; | |
13803 | case R_NDS32_TLS_IEGP_LO12: | |
13804 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13805 | break; | |
13806 | case R_NDS32_TLS_IEGP_LW: | |
13807 | bfd_putb32 (INSN_NOP, contents + irel->r_offset); | |
13808 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_RELAX_REMOVE); | |
13809 | break; | |
13810 | case R_NDS32_LOADSTORE: | |
13811 | case R_NDS32_PTR: | |
13812 | case R_NDS32_NONE: | |
13813 | case R_NDS32_LABEL: | |
13814 | case R_NDS32_PTR_RESOLVED: | |
13815 | break; | |
13816 | default: | |
13817 | BFD_ASSERT(0); | |
13818 | break; | |
13819 | } | |
13820 | break; | |
13821 | default: | |
13822 | break; | |
13823 | } | |
13824 | break; | |
13825 | /* IE to LE. */ | |
13826 | case GOT_TLS_IE: | |
13827 | switch (eff_tls_type) | |
13828 | { | |
13829 | case GOT_TLS_LE: | |
13830 | switch (r_type) | |
13831 | { | |
13832 | case R_NDS32_TLS_IE_HI20: | |
13833 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_HI20); | |
13834 | break; | |
13835 | case R_NDS32_TLS_IE_LO12S2: | |
13836 | { | |
13837 | uint32_t insn = bfd_getb32 (contents + irel->r_offset); | |
13838 | ||
13839 | add_rt = N32_RT5 (insn); | |
13840 | insn = N32_TYPE2 (ORI, add_rt, sethi_rt, 0); | |
13841 | bfd_putb32 (insn, contents + irel->r_offset); | |
13842 | ||
13843 | irel->r_info = ELF32_R_INFO (r_symndx, R_NDS32_TLS_LE_LO12); | |
13844 | } | |
13845 | break; | |
13846 | case R_NDS32_LOADSTORE: | |
13847 | case R_NDS32_PTR: | |
13848 | case R_NDS32_NONE: | |
13849 | case R_NDS32_LABEL: | |
13850 | break; | |
13851 | default: | |
13852 | BFD_ASSERT(0); | |
13853 | break; | |
13854 | } | |
13855 | break; | |
13856 | default: | |
13857 | break; | |
13858 | } | |
13859 | break; | |
13860 | default: | |
13861 | break; | |
13862 | } | |
13863 | } | |
13864 | pNextSig = pNextSig->next_sibling; | |
13865 | } | |
13866 | ||
13867 | #if 1 | |
13868 | pNext = pNext->next; | |
13869 | #else | |
13870 | while (pNext) | |
13871 | { | |
13872 | if (pNext->id != cur_grp_id) | |
13873 | break; | |
13874 | pNext = pNext->next; | |
13875 | } | |
13876 | #endif | |
13877 | } | |
13878 | ||
dc1e8a47 | 13879 | finish: |
fbaf61ad NC |
13880 | if (incontents) |
13881 | contents = NULL; | |
13882 | ||
c9594989 | 13883 | if (elf_section_data (insec)->relocs != internal_relocs) |
fbaf61ad NC |
13884 | free (internal_relocs); |
13885 | ||
c9594989 | 13886 | if (elf_section_data (insec)->this_hdr.contents != contents) |
fbaf61ad NC |
13887 | free (contents); |
13888 | ||
c9594989 | 13889 | if (symtab_hdr->contents != (bfd_byte *) local_syms) |
fbaf61ad NC |
13890 | free (local_syms); |
13891 | ||
13892 | if (chain.next) | |
13893 | { | |
13894 | pNext = chain.next; | |
13895 | relax_group_list_t *pDel; | |
13896 | while (pNext) | |
13897 | { | |
13898 | pDel = pNext; | |
13899 | pNext = pNext->next; | |
13900 | free (pDel); | |
13901 | } | |
13902 | } | |
13903 | ||
13904 | return result; | |
13905 | ||
dc1e8a47 | 13906 | error_return: |
fbaf61ad NC |
13907 | result = FALSE; |
13908 | goto finish; | |
13909 | } | |
13910 | ||
13911 | /* End TLS model conversion. */ | |
13912 | ||
35c08157 KLC |
13913 | #define ELF_ARCH bfd_arch_nds32 |
13914 | #define ELF_MACHINE_CODE EM_NDS32 | |
13915 | #define ELF_MAXPAGESIZE 0x1000 | |
07d6d2b8 | 13916 | #define ELF_TARGET_ID NDS32_ELF_DATA |
35c08157 | 13917 | |
6d00b590 | 13918 | #define TARGET_BIG_SYM nds32_elf32_be_vec |
35c08157 | 13919 | #define TARGET_BIG_NAME "elf32-nds32be" |
6d00b590 | 13920 | #define TARGET_LITTLE_SYM nds32_elf32_le_vec |
35c08157 KLC |
13921 | #define TARGET_LITTLE_NAME "elf32-nds32le" |
13922 | ||
13923 | #define elf_info_to_howto nds32_info_to_howto | |
13924 | #define elf_info_to_howto_rel nds32_info_to_howto_rel | |
13925 | ||
13926 | #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create | |
13927 | #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data | |
13928 | #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data | |
13929 | #define bfd_elf32_bfd_relax_section nds32_elf_relax_section | |
13930 | #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags | |
13931 | ||
07d6d2b8 | 13932 | #define bfd_elf32_mkobject nds32_elf_mkobject |
35c08157 KLC |
13933 | #define elf_backend_action_discarded nds32_elf_action_discarded |
13934 | #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook | |
13935 | #define elf_backend_check_relocs nds32_elf_check_relocs | |
13936 | #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol | |
13937 | #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections | |
13938 | #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections | |
13939 | #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol | |
13940 | #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections | |
13941 | #define elf_backend_relocate_section nds32_elf_relocate_section | |
13942 | #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook | |
35c08157 KLC |
13943 | #define elf_backend_grok_prstatus nds32_elf_grok_prstatus |
13944 | #define elf_backend_grok_psinfo nds32_elf_grok_psinfo | |
13945 | #define elf_backend_reloc_type_class nds32_elf_reloc_type_class | |
13946 | #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol | |
13947 | #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook | |
13948 | #define elf_backend_output_arch_syms nds32_elf_output_arch_syms | |
13949 | #define elf_backend_object_p nds32_elf_object_p | |
13950 | #define elf_backend_final_write_processing nds32_elf_final_write_processing | |
13951 | #define elf_backend_special_sections nds32_elf_special_sections | |
bf577467 | 13952 | #define elf_backend_section_flags nds32_elf_section_flags |
1c8f6a4d | 13953 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
07d6d2b8 | 13954 | nds32_elf_get_relocated_section_contents |
fbaf61ad NC |
13955 | #define bfd_elf32_bfd_is_target_special_symbol nds32_elf_is_target_special_symbol |
13956 | #define elf_backend_maybe_function_sym nds32_elf_maybe_function_sym | |
35c08157 KLC |
13957 | |
13958 | #define elf_backend_can_gc_sections 1 | |
13959 | #define elf_backend_can_refcount 1 | |
13960 | #define elf_backend_want_got_plt 1 | |
13961 | #define elf_backend_plt_readonly 1 | |
13962 | #define elf_backend_want_plt_sym 0 | |
13963 | #define elf_backend_got_header_size 12 | |
13964 | #define elf_backend_may_use_rel_p 1 | |
13965 | #define elf_backend_default_use_rela_p 1 | |
13966 | #define elf_backend_may_use_rela_p 1 | |
fbaf61ad | 13967 | #define elf_backend_dtrel_excludes_plt 0 |
35c08157 KLC |
13968 | |
13969 | #include "elf32-target.h" | |
13970 | ||
13971 | #undef ELF_MAXPAGESIZE | |
13972 | #define ELF_MAXPAGESIZE 0x2000 | |
13973 | ||
fbaf61ad | 13974 | #undef TARGET_BIG_SYM |
6d00b590 | 13975 | #define TARGET_BIG_SYM nds32_elf32_linux_be_vec |
fbaf61ad | 13976 | #undef TARGET_BIG_NAME |
35c08157 | 13977 | #define TARGET_BIG_NAME "elf32-nds32be-linux" |
fbaf61ad | 13978 | #undef TARGET_LITTLE_SYM |
6d00b590 | 13979 | #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec |
fbaf61ad | 13980 | #undef TARGET_LITTLE_NAME |
35c08157 | 13981 | #define TARGET_LITTLE_NAME "elf32-nds32le-linux" |
fbaf61ad | 13982 | #undef elf32_bed |
35c08157 KLC |
13983 | #define elf32_bed elf32_nds32_lin_bed |
13984 | ||
13985 | #include "elf32-target.h" |