Commit | Line | Data |
---|---|---|
b3c0fc57 | 1 | /* MIPS-specific support for 32-bit ELF |
edac2b4c | 2 | Copyright 1993, 94, 95, 96, 97, 1998 Free Software Foundation, Inc. |
6b4b4d17 | 3 | |
b3c0fc57 ILT |
4 | Most of the information added by Ian Lance Taylor, Cygnus Support, |
5 | <ian@cygnus.com>. | |
6 | ||
6b4b4d17 JK |
7 | This file is part of BFD, the Binary File Descriptor library. |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
3fe22b98 | 21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
6b4b4d17 | 22 | |
5b3b9ff6 ILT |
23 | /* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly |
24 | different MIPS ELF from other targets. This matters when linking. | |
25 | This file supports both, switching at runtime. */ | |
26 | ||
6b4b4d17 JK |
27 | #include "bfd.h" |
28 | #include "sysdep.h" | |
29 | #include "libbfd.h" | |
6e07e54f ILT |
30 | #include "bfdlink.h" |
31 | #include "genlink.h" | |
6ab826bd | 32 | #include "elf-bfd.h" |
b3c0fc57 ILT |
33 | #include "elf/mips.h" |
34 | ||
6e07e54f ILT |
35 | /* Get the ECOFF swapping routines. */ |
36 | #include "coff/sym.h" | |
37 | #include "coff/symconst.h" | |
38 | #include "coff/internal.h" | |
39 | #include "coff/ecoff.h" | |
40 | #include "coff/mips.h" | |
41 | #define ECOFF_32 | |
42 | #include "ecoffswap.h" | |
43 | ||
e4f4813f ILT |
44 | static bfd_reloc_status_type mips32_64bit_reloc |
45 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
16fe8950 | 46 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup |
aac6b32f ILT |
47 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
48 | static void mips_info_to_howto_rel | |
49 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); | |
53787b23 ILT |
50 | static void bfd_mips_elf32_swap_gptab_in |
51 | PARAMS ((bfd *, const Elf32_External_gptab *, Elf32_gptab *)); | |
52 | static void bfd_mips_elf32_swap_gptab_out | |
53 | PARAMS ((bfd *, const Elf32_gptab *, Elf32_External_gptab *)); | |
aac6b32f | 54 | static boolean mips_elf_sym_is_global PARAMS ((bfd *, asymbol *)); |
00176555 | 55 | static boolean mips_elf32_object_p PARAMS ((bfd *)); |
5b3b9ff6 ILT |
56 | static boolean mips_elf_create_procedure_table |
57 | PARAMS ((PTR, bfd *, struct bfd_link_info *, asection *, | |
58 | struct ecoff_debug_info *)); | |
59 | static int mips_elf_additional_program_headers PARAMS ((bfd *)); | |
60 | static boolean mips_elf_modify_segment_map PARAMS ((bfd *)); | |
fe4ff515 | 61 | static INLINE int elf_mips_isa PARAMS ((flagword)); |
edac2b4c | 62 | static INLINE int elf_mips_mach PARAMS ((flagword)); |
d1bf45aa | 63 | static boolean mips_elf32_section_from_shdr |
aac6b32f | 64 | PARAMS ((bfd *, Elf32_Internal_Shdr *, char *)); |
00176555 | 65 | static boolean mips_elf32_section_processing |
aac6b32f | 66 | PARAMS ((bfd *, Elf32_Internal_Shdr *)); |
7d996a75 ILT |
67 | static boolean mips_elf_is_local_label_name |
68 | PARAMS ((bfd *, const char *)); | |
aac6b32f ILT |
69 | static struct bfd_hash_entry *mips_elf_link_hash_newfunc |
70 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
71 | static struct bfd_link_hash_table *mips_elf_link_hash_table_create | |
72 | PARAMS ((bfd *)); | |
73 | static int gptab_compare PARAMS ((const void *, const void *)); | |
74 | static boolean mips_elf_final_link | |
75 | PARAMS ((bfd *, struct bfd_link_info *)); | |
76 | static void mips_elf_relocate_hi16 | |
77 | PARAMS ((bfd *, Elf_Internal_Rela *, Elf_Internal_Rela *, bfd_byte *, | |
78 | bfd_vma)); | |
85d6f0b4 | 79 | static boolean mips_elf_relocate_got_local |
5b3b9ff6 ILT |
80 | PARAMS ((bfd *, bfd *, asection *, Elf_Internal_Rela *, |
81 | Elf_Internal_Rela *, bfd_byte *, bfd_vma)); | |
82 | static void mips_elf_relocate_global_got | |
83 | PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma)); | |
e4f4813f ILT |
84 | static bfd_reloc_status_type mips16_jump_reloc |
85 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
85d6f0b4 ILT |
86 | static bfd_reloc_status_type mips16_gprel_reloc |
87 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
5e37b2da UD |
88 | /* start-sanitize-sky */ |
89 | static bfd_reloc_status_type dvp_u15_s3_reloc | |
90 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
91 | /* end-sanitize-sky */ | |
5b3b9ff6 ILT |
92 | static boolean mips_elf_adjust_dynindx |
93 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
aac6b32f ILT |
94 | static boolean mips_elf_relocate_section |
95 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
82b1edf7 | 96 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); |
e4f4813f ILT |
97 | static boolean mips_elf_link_output_symbol_hook |
98 | PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *, | |
99 | asection *)); | |
53787b23 ILT |
100 | static boolean mips_elf_create_dynamic_sections |
101 | PARAMS ((bfd *, struct bfd_link_info *)); | |
102 | static boolean mips_elf_create_compact_rel_section | |
103 | PARAMS ((bfd *, struct bfd_link_info *)); | |
104 | static boolean mips_elf_create_got_section | |
105 | PARAMS ((bfd *, struct bfd_link_info *)); | |
106 | static boolean mips_elf_check_relocs | |
107 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
108 | const Elf_Internal_Rela *)); | |
109 | static boolean mips_elf_adjust_dynamic_symbol | |
110 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
e900e695 ILT |
111 | static boolean mips_elf_always_size_sections |
112 | PARAMS ((bfd *, struct bfd_link_info *)); | |
53787b23 ILT |
113 | static boolean mips_elf_size_dynamic_sections |
114 | PARAMS ((bfd *, struct bfd_link_info *)); | |
115 | static boolean mips_elf_finish_dynamic_symbol | |
116 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
117 | Elf_Internal_Sym *)); | |
118 | static boolean mips_elf_finish_dynamic_sections | |
119 | PARAMS ((bfd *, struct bfd_link_info *)); | |
aac6b32f ILT |
120 | static boolean mips_elf_add_symbol_hook |
121 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
122 | const char **, flagword *, asection **, bfd_vma *)); | |
5b3b9ff6 | 123 | static bfd_reloc_status_type mips_elf_final_gp |
abec70b9 | 124 | PARAMS ((bfd *, asymbol *, boolean, char **, bfd_vma *)); |
53787b23 ILT |
125 | static bfd_byte *elf32_mips_get_relocated_section_contents |
126 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, | |
127 | bfd_byte *, boolean, asymbol **)); | |
5b3b9ff6 ILT |
128 | |
129 | /* This is true for Irix 5 executables, false for normal MIPS ELF ABI | |
130 | executables. FIXME: At the moment, we default to always generating | |
131 | Irix 5 executables. */ | |
132 | ||
133 | #define SGI_COMPAT(abfd) (1) | |
134 | ||
135 | /* This structure is used to hold .got information when linking. It | |
136 | is stored in the tdata field of the bfd_elf_section_data structure. */ | |
137 | ||
138 | struct mips_got_info | |
139 | { | |
140 | /* The symbol index of the first global .got symbol. */ | |
141 | unsigned long global_gotsym; | |
142 | /* The number of local .got entries. */ | |
143 | unsigned int local_gotno; | |
85d6f0b4 ILT |
144 | /* The number of local .got entries we have used. */ |
145 | unsigned int assigned_gotno; | |
5b3b9ff6 ILT |
146 | }; |
147 | ||
148 | /* The number of local .got entries we reserve. */ | |
149 | #define MIPS_RESERVED_GOTNO (2) | |
150 | ||
151 | /* Instructions which appear in a stub. For some reason the stub is | |
152 | slightly different on an SGI system. */ | |
153 | #define ELF_MIPS_GP_OFFSET(abfd) (SGI_COMPAT (abfd) ? 0x7ff0 : 0x8000) | |
154 | #define STUB_LW(abfd) \ | |
155 | (SGI_COMPAT (abfd) \ | |
156 | ? 0x8f998010 /* lw t9,0x8010(gp) */ \ | |
157 | : 0x8f998000) /* lw t9,0x8000(gp) */ | |
158 | #define STUB_MOVE 0x03e07825 /* move t7,ra */ | |
159 | #define STUB_JALR 0x0320f809 /* jal t9 */ | |
160 | #define STUB_LI16 0x34180000 /* ori t8,zero,0 */ | |
161 | #define MIPS_FUNCTION_STUB_SIZE (16) | |
162 | ||
163 | /* Names of sections which appear in the .dynsym section in an Irix 5 | |
164 | executable. */ | |
165 | ||
166 | static const char * const mips_elf_dynsym_sec_names[] = | |
167 | { | |
168 | ".text", | |
169 | ".init", | |
170 | ".fini", | |
171 | ".data", | |
172 | ".rodata", | |
173 | ".sdata", | |
174 | ".sbss", | |
175 | ".bss", | |
176 | NULL | |
177 | }; | |
178 | ||
179 | #define SIZEOF_MIPS_DYNSYM_SECNAMES \ | |
180 | (sizeof mips_elf_dynsym_sec_names / sizeof mips_elf_dynsym_sec_names[0]) | |
181 | ||
182 | /* The number of entries in mips_elf_dynsym_sec_names which go in the | |
183 | text segment. */ | |
184 | ||
185 | #define MIPS_TEXT_DYNSYM_SECNO (3) | |
186 | ||
187 | /* The names of the runtime procedure table symbols used on Irix 5. */ | |
188 | ||
189 | static const char * const mips_elf_dynsym_rtproc_names[] = | |
190 | { | |
191 | "_procedure_table", | |
192 | "_procedure_string_table", | |
193 | "_procedure_table_size", | |
194 | NULL | |
195 | }; | |
196 | ||
197 | /* These structures are used to generate the .compact_rel section on | |
198 | Irix 5. */ | |
199 | ||
200 | typedef struct | |
201 | { | |
202 | unsigned long id1; /* Always one? */ | |
203 | unsigned long num; /* Number of compact relocation entries. */ | |
204 | unsigned long id2; /* Always two? */ | |
205 | unsigned long offset; /* The file offset of the first relocation. */ | |
206 | unsigned long reserved0; /* Zero? */ | |
207 | unsigned long reserved1; /* Zero? */ | |
208 | } Elf32_compact_rel; | |
209 | ||
210 | typedef struct | |
211 | { | |
212 | bfd_byte id1[4]; | |
213 | bfd_byte num[4]; | |
214 | bfd_byte id2[4]; | |
215 | bfd_byte offset[4]; | |
216 | bfd_byte reserved0[4]; | |
217 | bfd_byte reserved1[4]; | |
218 | } Elf32_External_compact_rel; | |
219 | ||
220 | typedef struct | |
221 | { | |
053baeb1 ILT |
222 | unsigned int ctype : 1; /* 1: long 0: short format. See below. */ |
223 | unsigned int rtype : 4; /* Relocation types. See below. */ | |
224 | unsigned int dist2to : 8; | |
225 | unsigned int relvaddr : 19; /* (VADDR - vaddr of the previous entry)/ 4 */ | |
5b3b9ff6 ILT |
226 | unsigned long konst; /* KONST field. See below. */ |
227 | unsigned long vaddr; /* VADDR to be relocated. */ | |
228 | } Elf32_crinfo; | |
229 | ||
230 | typedef struct | |
231 | { | |
053baeb1 ILT |
232 | unsigned int ctype : 1; /* 1: long 0: short format. See below. */ |
233 | unsigned int rtype : 4; /* Relocation types. See below. */ | |
234 | unsigned int dist2to : 8; | |
235 | unsigned int relvaddr : 19; /* (VADDR - vaddr of the previous entry)/ 4 */ | |
5b3b9ff6 ILT |
236 | unsigned long konst; /* KONST field. See below. */ |
237 | } Elf32_crinfo2; | |
238 | ||
239 | typedef struct | |
240 | { | |
241 | bfd_byte info[4]; | |
242 | bfd_byte konst[4]; | |
243 | bfd_byte vaddr[4]; | |
244 | } Elf32_External_crinfo; | |
245 | ||
246 | typedef struct | |
247 | { | |
248 | bfd_byte info[4]; | |
249 | bfd_byte konst[4]; | |
250 | } Elf32_External_crinfo2; | |
251 | ||
053baeb1 ILT |
252 | /* These are the constants used to swap the bitfields in a crinfo. */ |
253 | ||
254 | #define CRINFO_CTYPE (0x1) | |
255 | #define CRINFO_CTYPE_SH (31) | |
256 | #define CRINFO_RTYPE (0xf) | |
257 | #define CRINFO_RTYPE_SH (27) | |
258 | #define CRINFO_DIST2TO (0xff) | |
259 | #define CRINFO_DIST2TO_SH (19) | |
260 | #define CRINFO_RELVADDR (0x7ffff) | |
261 | #define CRINFO_RELVADDR_SH (0) | |
262 | ||
5b3b9ff6 ILT |
263 | /* A compact relocation info has long (3 words) or short (2 words) |
264 | formats. A short format doesn't have VADDR field and relvaddr | |
265 | fields contains ((VADDR - vaddr of the previous entry) >> 2). */ | |
266 | #define CRF_MIPS_LONG 1 | |
267 | #define CRF_MIPS_SHORT 0 | |
268 | ||
269 | /* There are 4 types of compact relocation at least. The value KONST | |
270 | has different meaning for each type: | |
271 | ||
272 | (type) (konst) | |
273 | CT_MIPS_REL32 Address in data | |
274 | CT_MIPS_WORD Address in word (XXX) | |
275 | CT_MIPS_GPHI_LO GP - vaddr | |
276 | CT_MIPS_JMPAD Address to jump | |
277 | */ | |
278 | ||
279 | #define CRT_MIPS_REL32 0xa | |
280 | #define CRT_MIPS_WORD 0xb | |
281 | #define CRT_MIPS_GPHI_LO 0xc | |
282 | #define CRT_MIPS_JMPAD 0xd | |
283 | ||
053baeb1 ILT |
284 | #define mips_elf_set_cr_format(x,format) ((x).ctype = (format)) |
285 | #define mips_elf_set_cr_type(x,type) ((x).rtype = (type)) | |
286 | #define mips_elf_set_cr_dist2to(x,v) ((x).dist2to = (v)) | |
287 | #define mips_elf_set_cr_relvaddr(x,d) ((x).relvaddr = (d)<<2) | |
b3c0fc57 | 288 | |
53787b23 ILT |
289 | static void bfd_elf32_swap_compact_rel_out |
290 | PARAMS ((bfd *, const Elf32_compact_rel *, Elf32_External_compact_rel *)); | |
291 | static void bfd_elf32_swap_crinfo_out | |
292 | PARAMS ((bfd *, const Elf32_crinfo *, Elf32_External_crinfo *)); | |
293 | ||
b3c0fc57 ILT |
294 | #define USE_REL 1 /* MIPS uses REL relocations instead of RELA */ |
295 | ||
b3c0fc57 ILT |
296 | static reloc_howto_type elf_mips_howto_table[] = |
297 | { | |
298 | /* No relocation. */ | |
299 | HOWTO (R_MIPS_NONE, /* type */ | |
300 | 0, /* rightshift */ | |
301 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
302 | 0, /* bitsize */ | |
303 | false, /* pc_relative */ | |
304 | 0, /* bitpos */ | |
305 | complain_overflow_dont, /* complain_on_overflow */ | |
306 | bfd_elf_generic_reloc, /* special_function */ | |
307 | "R_MIPS_NONE", /* name */ | |
308 | false, /* partial_inplace */ | |
309 | 0, /* src_mask */ | |
310 | 0, /* dst_mask */ | |
311 | false), /* pcrel_offset */ | |
312 | ||
313 | /* 16 bit relocation. */ | |
314 | HOWTO (R_MIPS_16, /* type */ | |
315 | 0, /* rightshift */ | |
316 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
317 | 16, /* bitsize */ | |
318 | false, /* pc_relative */ | |
319 | 0, /* bitpos */ | |
320 | complain_overflow_bitfield, /* complain_on_overflow */ | |
321 | bfd_elf_generic_reloc, /* special_function */ | |
322 | "R_MIPS_16", /* name */ | |
323 | true, /* partial_inplace */ | |
324 | 0xffff, /* src_mask */ | |
325 | 0xffff, /* dst_mask */ | |
326 | false), /* pcrel_offset */ | |
327 | ||
328 | /* 32 bit relocation. */ | |
329 | HOWTO (R_MIPS_32, /* type */ | |
330 | 0, /* rightshift */ | |
331 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
332 | 32, /* bitsize */ | |
333 | false, /* pc_relative */ | |
334 | 0, /* bitpos */ | |
335 | complain_overflow_bitfield, /* complain_on_overflow */ | |
336 | bfd_elf_generic_reloc, /* special_function */ | |
337 | "R_MIPS_32", /* name */ | |
338 | true, /* partial_inplace */ | |
339 | 0xffffffff, /* src_mask */ | |
340 | 0xffffffff, /* dst_mask */ | |
341 | false), /* pcrel_offset */ | |
342 | ||
343 | /* 32 bit symbol relative relocation. */ | |
344 | HOWTO (R_MIPS_REL32, /* type */ | |
345 | 0, /* rightshift */ | |
346 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
347 | 32, /* bitsize */ | |
348 | false, /* pc_relative */ | |
349 | 0, /* bitpos */ | |
350 | complain_overflow_bitfield, /* complain_on_overflow */ | |
351 | bfd_elf_generic_reloc, /* special_function */ | |
352 | "R_MIPS_REL32", /* name */ | |
353 | true, /* partial_inplace */ | |
354 | 0xffffffff, /* src_mask */ | |
355 | 0xffffffff, /* dst_mask */ | |
356 | false), /* pcrel_offset */ | |
357 | ||
358 | /* 26 bit branch address. */ | |
359 | HOWTO (R_MIPS_26, /* type */ | |
360 | 2, /* rightshift */ | |
361 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
362 | 26, /* bitsize */ | |
363 | false, /* pc_relative */ | |
364 | 0, /* bitpos */ | |
6e07e54f ILT |
365 | complain_overflow_dont, /* complain_on_overflow */ |
366 | /* This needs complex overflow | |
367 | detection, because the upper four | |
368 | bits must match the PC. */ | |
b3c0fc57 ILT |
369 | bfd_elf_generic_reloc, /* special_function */ |
370 | "R_MIPS_26", /* name */ | |
371 | true, /* partial_inplace */ | |
372 | 0x3ffffff, /* src_mask */ | |
373 | 0x3ffffff, /* dst_mask */ | |
374 | false), /* pcrel_offset */ | |
375 | ||
376 | /* High 16 bits of symbol value. */ | |
377 | HOWTO (R_MIPS_HI16, /* type */ | |
378 | 0, /* rightshift */ | |
379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
380 | 16, /* bitsize */ | |
381 | false, /* pc_relative */ | |
382 | 0, /* bitpos */ | |
383 | complain_overflow_dont, /* complain_on_overflow */ | |
bc05732b | 384 | _bfd_mips_elf_hi16_reloc, /* special_function */ |
b3c0fc57 ILT |
385 | "R_MIPS_HI16", /* name */ |
386 | true, /* partial_inplace */ | |
387 | 0xffff, /* src_mask */ | |
388 | 0xffff, /* dst_mask */ | |
389 | false), /* pcrel_offset */ | |
390 | ||
391 | /* Low 16 bits of symbol value. */ | |
392 | HOWTO (R_MIPS_LO16, /* type */ | |
393 | 0, /* rightshift */ | |
394 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
395 | 16, /* bitsize */ | |
396 | false, /* pc_relative */ | |
397 | 0, /* bitpos */ | |
398 | complain_overflow_dont, /* complain_on_overflow */ | |
bc05732b | 399 | _bfd_mips_elf_lo16_reloc, /* special_function */ |
b3c0fc57 ILT |
400 | "R_MIPS_LO16", /* name */ |
401 | true, /* partial_inplace */ | |
402 | 0xffff, /* src_mask */ | |
403 | 0xffff, /* dst_mask */ | |
404 | false), /* pcrel_offset */ | |
405 | ||
406 | /* GP relative reference. */ | |
407 | HOWTO (R_MIPS_GPREL16, /* type */ | |
408 | 0, /* rightshift */ | |
409 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
410 | 16, /* bitsize */ | |
411 | false, /* pc_relative */ | |
412 | 0, /* bitpos */ | |
413 | complain_overflow_signed, /* complain_on_overflow */ | |
bc05732b | 414 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
b3c0fc57 ILT |
415 | "R_MIPS_GPREL16", /* name */ |
416 | true, /* partial_inplace */ | |
417 | 0xffff, /* src_mask */ | |
418 | 0xffff, /* dst_mask */ | |
419 | false), /* pcrel_offset */ | |
420 | ||
421 | /* Reference to literal section. */ | |
422 | HOWTO (R_MIPS_LITERAL, /* type */ | |
423 | 0, /* rightshift */ | |
424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
425 | 16, /* bitsize */ | |
426 | false, /* pc_relative */ | |
427 | 0, /* bitpos */ | |
428 | complain_overflow_signed, /* complain_on_overflow */ | |
bc05732b | 429 | _bfd_mips_elf_gprel16_reloc, /* special_function */ |
b3c0fc57 ILT |
430 | "R_MIPS_LITERAL", /* name */ |
431 | true, /* partial_inplace */ | |
432 | 0xffff, /* src_mask */ | |
433 | 0xffff, /* dst_mask */ | |
434 | false), /* pcrel_offset */ | |
435 | ||
436 | /* Reference to global offset table. */ | |
b3c0fc57 ILT |
437 | HOWTO (R_MIPS_GOT16, /* type */ |
438 | 0, /* rightshift */ | |
439 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
440 | 16, /* bitsize */ | |
441 | false, /* pc_relative */ | |
442 | 0, /* bitpos */ | |
443 | complain_overflow_signed, /* complain_on_overflow */ | |
bc05732b | 444 | _bfd_mips_elf_got16_reloc, /* special_function */ |
b3c0fc57 ILT |
445 | "R_MIPS_GOT16", /* name */ |
446 | false, /* partial_inplace */ | |
447 | 0, /* src_mask */ | |
448 | 0xffff, /* dst_mask */ | |
449 | false), /* pcrel_offset */ | |
450 | ||
451 | /* 16 bit PC relative reference. */ | |
452 | HOWTO (R_MIPS_PC16, /* type */ | |
453 | 0, /* rightshift */ | |
454 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
455 | 16, /* bitsize */ | |
456 | true, /* pc_relative */ | |
457 | 0, /* bitpos */ | |
458 | complain_overflow_signed, /* complain_on_overflow */ | |
459 | bfd_elf_generic_reloc, /* special_function */ | |
460 | "R_MIPS_PC16", /* name */ | |
461 | true, /* partial_inplace */ | |
462 | 0xffff, /* src_mask */ | |
463 | 0xffff, /* dst_mask */ | |
464 | false), /* pcrel_offset */ | |
465 | ||
466 | /* 16 bit call through global offset table. */ | |
467 | /* FIXME: This is not handled correctly. */ | |
468 | HOWTO (R_MIPS_CALL16, /* type */ | |
469 | 0, /* rightshift */ | |
470 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
471 | 16, /* bitsize */ | |
472 | false, /* pc_relative */ | |
473 | 0, /* bitpos */ | |
474 | complain_overflow_signed, /* complain_on_overflow */ | |
475 | bfd_elf_generic_reloc, /* special_function */ | |
476 | "R_MIPS_CALL16", /* name */ | |
477 | false, /* partial_inplace */ | |
478 | 0, /* src_mask */ | |
479 | 0xffff, /* dst_mask */ | |
480 | false), /* pcrel_offset */ | |
481 | ||
482 | /* 32 bit GP relative reference. */ | |
b3c0fc57 ILT |
483 | HOWTO (R_MIPS_GPREL32, /* type */ |
484 | 0, /* rightshift */ | |
485 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
486 | 32, /* bitsize */ | |
487 | false, /* pc_relative */ | |
488 | 0, /* bitpos */ | |
489 | complain_overflow_bitfield, /* complain_on_overflow */ | |
bc05732b | 490 | _bfd_mips_elf_gprel32_reloc, /* special_function */ |
b3c0fc57 ILT |
491 | "R_MIPS_GPREL32", /* name */ |
492 | true, /* partial_inplace */ | |
493 | 0xffffffff, /* src_mask */ | |
494 | 0xffffffff, /* dst_mask */ | |
6a5848cd ILT |
495 | false), /* pcrel_offset */ |
496 | ||
497 | /* The remaining relocs are defined on Irix 5, although they are | |
498 | not defined by the ABI. */ | |
499 | { 13 }, | |
500 | { 14 }, | |
501 | { 15 }, | |
502 | ||
503 | /* A 5 bit shift field. */ | |
504 | HOWTO (R_MIPS_SHIFT5, /* type */ | |
505 | 0, /* rightshift */ | |
506 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
507 | 5, /* bitsize */ | |
508 | false, /* pc_relative */ | |
509 | 6, /* bitpos */ | |
510 | complain_overflow_bitfield, /* complain_on_overflow */ | |
511 | bfd_elf_generic_reloc, /* special_function */ | |
512 | "R_MIPS_SHIFT5", /* name */ | |
513 | true, /* partial_inplace */ | |
514 | 0x000007c0, /* src_mask */ | |
515 | 0x000007c0, /* dst_mask */ | |
516 | false), /* pcrel_offset */ | |
517 | ||
518 | /* A 6 bit shift field. */ | |
519 | /* FIXME: This is not handled correctly; a special function is | |
520 | needed to put the most significant bit in the right place. */ | |
521 | HOWTO (R_MIPS_SHIFT6, /* type */ | |
522 | 0, /* rightshift */ | |
523 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
524 | 6, /* bitsize */ | |
525 | false, /* pc_relative */ | |
526 | 6, /* bitpos */ | |
527 | complain_overflow_bitfield, /* complain_on_overflow */ | |
528 | bfd_elf_generic_reloc, /* special_function */ | |
529 | "R_MIPS_SHIFT6", /* name */ | |
530 | true, /* partial_inplace */ | |
531 | 0x000007c4, /* src_mask */ | |
532 | 0x000007c4, /* dst_mask */ | |
533 | false), /* pcrel_offset */ | |
534 | ||
e4f4813f ILT |
535 | /* A 64 bit relocation. This is used in 32 bit ELF when addresses |
536 | are 64 bits long; the upper 32 bits are simply a sign extension. | |
537 | The fields of the howto should be the same as for R_MIPS_32, | |
538 | other than the type, name, and special_function. */ | |
539 | HOWTO (R_MIPS_64, /* type */ | |
540 | 0, /* rightshift */ | |
541 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
542 | 32, /* bitsize */ | |
543 | false, /* pc_relative */ | |
544 | 0, /* bitpos */ | |
545 | complain_overflow_bitfield, /* complain_on_overflow */ | |
546 | mips32_64bit_reloc, /* special_function */ | |
547 | "R_MIPS_64", /* name */ | |
548 | true, /* partial_inplace */ | |
549 | 0xffffffff, /* src_mask */ | |
550 | 0xffffffff, /* dst_mask */ | |
551 | false), /* pcrel_offset */ | |
6a5848cd ILT |
552 | |
553 | /* Displacement in the global offset table. */ | |
554 | /* FIXME: Not handled correctly. */ | |
555 | HOWTO (R_MIPS_GOT_DISP, /* type */ | |
556 | 0, /* rightshift */ | |
557 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
558 | 16, /* bitsize */ | |
559 | false, /* pc_relative */ | |
560 | 0, /* bitpos */ | |
561 | complain_overflow_bitfield, /* complain_on_overflow */ | |
562 | bfd_elf_generic_reloc, /* special_function */ | |
563 | "R_MIPS_GOT_DISP", /* name */ | |
564 | true, /* partial_inplace */ | |
565 | 0x0000ffff, /* src_mask */ | |
566 | 0x0000ffff, /* dst_mask */ | |
567 | false), /* pcrel_offset */ | |
568 | ||
569 | /* Displacement to page pointer in the global offset table. */ | |
570 | /* FIXME: Not handled correctly. */ | |
571 | HOWTO (R_MIPS_GOT_PAGE, /* type */ | |
572 | 0, /* rightshift */ | |
573 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
574 | 16, /* bitsize */ | |
575 | false, /* pc_relative */ | |
576 | 0, /* bitpos */ | |
577 | complain_overflow_bitfield, /* complain_on_overflow */ | |
578 | bfd_elf_generic_reloc, /* special_function */ | |
579 | "R_MIPS_GOT_PAGE", /* name */ | |
580 | true, /* partial_inplace */ | |
581 | 0x0000ffff, /* src_mask */ | |
582 | 0x0000ffff, /* dst_mask */ | |
583 | false), /* pcrel_offset */ | |
584 | ||
585 | /* Offset from page pointer in the global offset table. */ | |
586 | /* FIXME: Not handled correctly. */ | |
587 | HOWTO (R_MIPS_GOT_OFST, /* type */ | |
588 | 0, /* rightshift */ | |
589 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
590 | 16, /* bitsize */ | |
591 | false, /* pc_relative */ | |
592 | 0, /* bitpos */ | |
593 | complain_overflow_bitfield, /* complain_on_overflow */ | |
594 | bfd_elf_generic_reloc, /* special_function */ | |
595 | "R_MIPS_GOT_OFST", /* name */ | |
596 | true, /* partial_inplace */ | |
597 | 0x0000ffff, /* src_mask */ | |
598 | 0x0000ffff, /* dst_mask */ | |
599 | false), /* pcrel_offset */ | |
600 | ||
601 | /* High 16 bits of displacement in global offset table. */ | |
602 | /* FIXME: Not handled correctly. */ | |
603 | HOWTO (R_MIPS_GOT_HI16, /* type */ | |
604 | 0, /* rightshift */ | |
605 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
606 | 16, /* bitsize */ | |
607 | false, /* pc_relative */ | |
608 | 0, /* bitpos */ | |
609 | complain_overflow_dont, /* complain_on_overflow */ | |
610 | bfd_elf_generic_reloc, /* special_function */ | |
611 | "R_MIPS_GOT_HI16", /* name */ | |
612 | true, /* partial_inplace */ | |
613 | 0x0000ffff, /* src_mask */ | |
614 | 0x0000ffff, /* dst_mask */ | |
615 | false), /* pcrel_offset */ | |
616 | ||
617 | /* Low 16 bits of displacement in global offset table. */ | |
618 | /* FIXME: Not handled correctly. */ | |
619 | HOWTO (R_MIPS_GOT_LO16, /* type */ | |
620 | 0, /* rightshift */ | |
621 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
622 | 16, /* bitsize */ | |
623 | false, /* pc_relative */ | |
624 | 0, /* bitpos */ | |
625 | complain_overflow_dont, /* complain_on_overflow */ | |
626 | bfd_elf_generic_reloc, /* special_function */ | |
627 | "R_MIPS_GOT_LO16", /* name */ | |
628 | true, /* partial_inplace */ | |
629 | 0x0000ffff, /* src_mask */ | |
630 | 0x0000ffff, /* dst_mask */ | |
631 | false), /* pcrel_offset */ | |
632 | ||
633 | /* 64 bit subtraction. Presumably not used in 32 bit ELF. */ | |
634 | { R_MIPS_SUB }, | |
635 | ||
636 | /* Used to cause the linker to insert and delete instructions? */ | |
637 | { R_MIPS_INSERT_A }, | |
638 | { R_MIPS_INSERT_B }, | |
639 | { R_MIPS_DELETE }, | |
640 | ||
641 | /* Get the higher values of a 64 bit addend. Presumably not used in | |
642 | 32 bit ELF. */ | |
643 | { R_MIPS_HIGHER }, | |
644 | { R_MIPS_HIGHEST }, | |
645 | ||
646 | /* High 16 bits of displacement in global offset table. */ | |
647 | /* FIXME: Not handled correctly. */ | |
648 | HOWTO (R_MIPS_CALL_HI16, /* type */ | |
649 | 0, /* rightshift */ | |
650 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
651 | 16, /* bitsize */ | |
652 | false, /* pc_relative */ | |
653 | 0, /* bitpos */ | |
654 | complain_overflow_dont, /* complain_on_overflow */ | |
655 | bfd_elf_generic_reloc, /* special_function */ | |
656 | "R_MIPS_CALL_HI16", /* name */ | |
657 | true, /* partial_inplace */ | |
658 | 0x0000ffff, /* src_mask */ | |
659 | 0x0000ffff, /* dst_mask */ | |
660 | false), /* pcrel_offset */ | |
661 | ||
662 | /* Low 16 bits of displacement in global offset table. */ | |
663 | /* FIXME: Not handled correctly. */ | |
664 | HOWTO (R_MIPS_CALL_LO16, /* type */ | |
665 | 0, /* rightshift */ | |
666 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
667 | 16, /* bitsize */ | |
668 | false, /* pc_relative */ | |
669 | 0, /* bitpos */ | |
670 | complain_overflow_dont, /* complain_on_overflow */ | |
671 | bfd_elf_generic_reloc, /* special_function */ | |
672 | "R_MIPS_CALL_LO16", /* name */ | |
673 | true, /* partial_inplace */ | |
674 | 0x0000ffff, /* src_mask */ | |
675 | 0x0000ffff, /* dst_mask */ | |
edac2b4c DE |
676 | false), /* pcrel_offset */ |
677 | ||
1a85826e KR |
678 | { R_MIPS_SCN_DISP }, |
679 | { R_MIPS_REL16 }, | |
680 | { R_MIPS_ADD_IMMEDIATE }, | |
681 | { R_MIPS_PJUMP }, | |
682 | { R_MIPS_RELGOT } | |
b3c0fc57 ILT |
683 | }; |
684 | ||
5641f23e ILT |
685 | /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This |
686 | is a hack to make the linker think that we need 64 bit values. */ | |
687 | static reloc_howto_type elf_mips_ctor64_howto = | |
688 | HOWTO (R_MIPS_64, /* type */ | |
689 | 0, /* rightshift */ | |
690 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
691 | 32, /* bitsize */ | |
692 | false, /* pc_relative */ | |
693 | 0, /* bitpos */ | |
694 | complain_overflow_signed, /* complain_on_overflow */ | |
695 | mips32_64bit_reloc, /* special_function */ | |
696 | "R_MIPS_64", /* name */ | |
697 | true, /* partial_inplace */ | |
698 | 0xffffffff, /* src_mask */ | |
699 | 0xffffffff, /* dst_mask */ | |
700 | false); /* pcrel_offset */ | |
701 | ||
e4f4813f ILT |
702 | /* The reloc used for the mips16 jump instruction. */ |
703 | static reloc_howto_type elf_mips16_jump_howto = | |
704 | HOWTO (R_MIPS16_26, /* type */ | |
705 | 2, /* rightshift */ | |
706 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
707 | 26, /* bitsize */ | |
708 | false, /* pc_relative */ | |
709 | 0, /* bitpos */ | |
710 | complain_overflow_dont, /* complain_on_overflow */ | |
711 | /* This needs complex overflow | |
712 | detection, because the upper four | |
713 | bits must match the PC. */ | |
714 | mips16_jump_reloc, /* special_function */ | |
715 | "R_MIPS16_26", /* name */ | |
716 | true, /* partial_inplace */ | |
717 | 0x3ffffff, /* src_mask */ | |
718 | 0x3ffffff, /* dst_mask */ | |
719 | false); /* pcrel_offset */ | |
720 | ||
85d6f0b4 ILT |
721 | /* The reloc used for the mips16 gprel instruction. The src_mask and |
722 | dsk_mask for this howto do not reflect the actual instruction, in | |
723 | which the value is not contiguous; the masks are for the | |
724 | convenience of the relocate_section routine. */ | |
725 | static reloc_howto_type elf_mips16_gprel_howto = | |
726 | HOWTO (R_MIPS16_GPREL, /* type */ | |
727 | 0, /* rightshift */ | |
728 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
729 | 16, /* bitsize */ | |
730 | false, /* pc_relative */ | |
731 | 0, /* bitpos */ | |
732 | complain_overflow_signed, /* complain_on_overflow */ | |
733 | mips16_gprel_reloc, /* special_function */ | |
734 | "R_MIPS16_GPREL", /* name */ | |
735 | true, /* partial_inplace */ | |
736 | 0xffff, /* src_mask */ | |
737 | 0xffff, /* dst_mask */ | |
738 | false); /* pcrel_offset */ | |
739 | ||
1a85826e KR |
740 | /* start-sanitize-r5900 */ |
741 | static reloc_howto_type elf_mips15_s3_howto = | |
742 | HOWTO (R_MIPS15_S3, /* type */ | |
743 | 3, /* rightshift */ | |
744 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
745 | 15, /* bitsize */ | |
746 | false, /* pc_relative */ | |
747 | 6, /* bitpos */ | |
748 | complain_overflow_bitfield, /* complain_on_overflow */ | |
749 | bfd_elf_generic_reloc, /* special_function */ | |
750 | "R_MIPS15_S3", /* name */ | |
751 | true, /* partial_inplace */ | |
752 | 0x001fffc0, /* src_mask */ | |
753 | 0x001fffc0, /* dst_mask */ | |
754 | false); /* pcrel_offset */ | |
755 | ||
756 | /* end-sanitize-r5900 */ | |
3134a2bd | 757 | /* start-sanitize-sky */ |
edac2b4c DE |
758 | /* DVP relocations. |
759 | Note that partial_inplace and pcrel_offset are backwards from the | |
760 | mips port. This is intentional as it seems more reasonable. */ | |
761 | static reloc_howto_type elf_mips_dvp_11_pcrel_howto = | |
3134a2bd DE |
762 | HOWTO (R_MIPS_DVP_11_PCREL, /* type */ |
763 | 3, /* rightshift */ | |
764 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
765 | 11, /* bitsize */ | |
766 | true, /* pc_relative */ | |
767 | 0, /* bitpos */ | |
768 | complain_overflow_signed, /* complain_on_overflow */ | |
769 | bfd_elf_generic_reloc, /* special_function */ | |
770 | "R_MIPS_DVP_11_PCREL", /* name */ | |
edac2b4c | 771 | false, /* partial_inplace */ |
3134a2bd DE |
772 | 0x7ff, /* src_mask */ |
773 | 0x7ff, /* dst_mask */ | |
c62a82b5 | 774 | true); /* pcrel_offset */ |
edac2b4c DE |
775 | static reloc_howto_type elf_mips_dvp_27_s4_howto = |
776 | HOWTO (R_MIPS_DVP_27_S4, /* type */ | |
777 | 4, /* rightshift */ | |
778 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
779 | 27, /* bitsize */ | |
780 | false, /* pc_relative */ | |
781 | 4, /* bitpos */ | |
782 | complain_overflow_unsigned, /* complain_on_overflow */ | |
783 | bfd_elf_generic_reloc, /* special_function */ | |
784 | "R_MIPS_DVP_27_S4", /* name */ | |
785 | false, /* partial_inplace */ | |
786 | 0x7ffffff0, /* src_mask */ | |
787 | 0x7ffffff0, /* dst_mask */ | |
788 | false); /* pcrel_offset */ | |
5e37b2da UD |
789 | static reloc_howto_type elf_mips_dvp_11_s4_howto = |
790 | HOWTO (R_MIPS_DVP_11_S4, /* type */ | |
791 | 4, /* rightshift */ | |
792 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
793 | 11, /* bitsize */ | |
794 | false, /* pc_relative */ | |
795 | 0, /* bitpos */ | |
796 | complain_overflow_signed, /* complain_on_overflow */ | |
797 | bfd_elf_generic_reloc, /* special_function */ | |
798 | "R_MIPS_DVP_11_S4", /* name */ | |
799 | false, /* partial_inplace */ | |
800 | 0x03ff, /* src_mask */ | |
801 | 0x03ff, /* dst_mask */ | |
802 | false); /* pcrel_offset */ | |
803 | static reloc_howto_type elf_mips_dvp_u15_s3_howto = | |
804 | HOWTO (R_MIPS_DVP_U15_S3, /* type */ | |
805 | 3, /* rightshift */ | |
806 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
807 | 15, /* bitsize */ | |
808 | false, /* pc_relative */ | |
809 | 0, /* bitpos */ | |
810 | complain_overflow_unsigned, /* complain_on_overflow */ | |
811 | dvp_u15_s3_reloc, /* special_function */ | |
812 | "R_MIPS_DVP_U15_S3", /* name */ | |
813 | false, /* partial_inplace */ | |
814 | 0xf03ff, /* src_mask */ | |
815 | 0xf03ff, /* dst_mask */ | |
816 | false); /* pcrel_offset */ | |
3134a2bd DE |
817 | /* end-sanitize-sky */ |
818 | ||
303b4cc6 RH |
819 | /* GNU extension to record C++ vtable hierarchy */ |
820 | static reloc_howto_type elf_mips_gnu_vtinherit_howto = | |
821 | HOWTO (R_MIPS_GNU_VTINHERIT, /* type */ | |
822 | 0, /* rightshift */ | |
823 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
824 | 0, /* bitsize */ | |
825 | false, /* pc_relative */ | |
826 | 0, /* bitpos */ | |
827 | complain_overflow_dont, /* complain_on_overflow */ | |
828 | NULL, /* special_function */ | |
829 | "R_MIPS_GNU_VTINHERIT", /* name */ | |
830 | false, /* partial_inplace */ | |
831 | 0, /* src_mask */ | |
832 | 0, /* dst_mask */ | |
833 | false); /* pcrel_offset */ | |
834 | ||
835 | /* GNU extension to record C++ vtable member usage */ | |
836 | static reloc_howto_type elf_mips_gnu_vtentry_howto = | |
837 | HOWTO (R_MIPS_GNU_VTENTRY, /* type */ | |
838 | 0, /* rightshift */ | |
839 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
840 | 0, /* bitsize */ | |
841 | false, /* pc_relative */ | |
842 | 0, /* bitpos */ | |
843 | complain_overflow_dont, /* complain_on_overflow */ | |
844 | NULL, /* special_function */ | |
845 | "R_MIPS_GNU_VTENTRY", /* name */ | |
846 | false, /* partial_inplace */ | |
847 | 0, /* src_mask */ | |
848 | 0, /* dst_mask */ | |
849 | false); /* pcrel_offset */ | |
850 | ||
b3c0fc57 ILT |
851 | /* Do a R_MIPS_HI16 relocation. This has to be done in combination |
852 | with a R_MIPS_LO16 reloc, because there is a carry from the LO16 to | |
853 | the HI16. Here we just save the information we need; we do the | |
854 | actual relocation when we see the LO16. MIPS ELF requires that the | |
abec70b9 ILT |
855 | LO16 immediately follow the HI16. As a GNU extension, we permit an |
856 | arbitrary number of HI16 relocs to be associated with a single LO16 | |
857 | reloc. This extension permits gcc to output the HI and LO relocs | |
858 | itself. */ | |
b3c0fc57 | 859 | |
abec70b9 ILT |
860 | struct mips_hi16 |
861 | { | |
862 | struct mips_hi16 *next; | |
863 | bfd_byte *addr; | |
864 | bfd_vma addend; | |
865 | }; | |
866 | ||
867 | /* FIXME: This should not be a static variable. */ | |
868 | ||
869 | static struct mips_hi16 *mips_hi16_list; | |
b3c0fc57 | 870 | |
bc05732b ILT |
871 | bfd_reloc_status_type |
872 | _bfd_mips_elf_hi16_reloc (abfd, | |
b3c0fc57 ILT |
873 | reloc_entry, |
874 | symbol, | |
875 | data, | |
876 | input_section, | |
6e07e54f ILT |
877 | output_bfd, |
878 | error_message) | |
b3c0fc57 ILT |
879 | bfd *abfd; |
880 | arelent *reloc_entry; | |
881 | asymbol *symbol; | |
882 | PTR data; | |
883 | asection *input_section; | |
884 | bfd *output_bfd; | |
6e07e54f | 885 | char **error_message; |
b3c0fc57 ILT |
886 | { |
887 | bfd_reloc_status_type ret; | |
888 | bfd_vma relocation; | |
abec70b9 | 889 | struct mips_hi16 *n; |
b3c0fc57 | 890 | |
b3c0fc57 ILT |
891 | /* If we're relocating, and this an external symbol, we don't want |
892 | to change anything. */ | |
893 | if (output_bfd != (bfd *) NULL | |
894 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
895 | && reloc_entry->addend == 0) | |
896 | { | |
897 | reloc_entry->address += input_section->output_offset; | |
898 | return bfd_reloc_ok; | |
899 | } | |
900 | ||
5b3b9ff6 ILT |
901 | ret = bfd_reloc_ok; |
902 | ||
6e07e54f | 903 | if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) |
5b3b9ff6 ILT |
904 | { |
905 | boolean relocateable; | |
abec70b9 | 906 | bfd_vma gp; |
6e07e54f | 907 | |
5b3b9ff6 ILT |
908 | if (ret == bfd_reloc_undefined) |
909 | abort (); | |
b3c0fc57 | 910 | |
5b3b9ff6 ILT |
911 | if (output_bfd != NULL) |
912 | relocateable = true; | |
913 | else | |
914 | { | |
915 | relocateable = false; | |
916 | output_bfd = symbol->section->output_section->owner; | |
917 | } | |
918 | ||
919 | ret = mips_elf_final_gp (output_bfd, symbol, relocateable, | |
abec70b9 | 920 | error_message, &gp); |
5b3b9ff6 ILT |
921 | if (ret != bfd_reloc_ok) |
922 | return ret; | |
923 | ||
abec70b9 | 924 | relocation = gp - reloc_entry->address; |
5b3b9ff6 | 925 | } |
b3c0fc57 | 926 | else |
5b3b9ff6 ILT |
927 | { |
928 | if (bfd_is_und_section (symbol->section) | |
929 | && output_bfd == (bfd *) NULL) | |
930 | ret = bfd_reloc_undefined; | |
931 | ||
932 | if (bfd_is_com_section (symbol->section)) | |
933 | relocation = 0; | |
934 | else | |
935 | relocation = symbol->value; | |
936 | } | |
b3c0fc57 ILT |
937 | |
938 | relocation += symbol->section->output_section->vma; | |
939 | relocation += symbol->section->output_offset; | |
940 | relocation += reloc_entry->addend; | |
941 | ||
942 | if (reloc_entry->address > input_section->_cooked_size) | |
943 | return bfd_reloc_outofrange; | |
944 | ||
945 | /* Save the information, and let LO16 do the actual relocation. */ | |
abec70b9 ILT |
946 | n = (struct mips_hi16 *) bfd_malloc (sizeof *n); |
947 | if (n == NULL) | |
948 | return bfd_reloc_outofrange; | |
949 | n->addr = (bfd_byte *) data + reloc_entry->address; | |
950 | n->addend = relocation; | |
951 | n->next = mips_hi16_list; | |
952 | mips_hi16_list = n; | |
b3c0fc57 ILT |
953 | |
954 | if (output_bfd != (bfd *) NULL) | |
955 | reloc_entry->address += input_section->output_offset; | |
956 | ||
957 | return ret; | |
958 | } | |
959 | ||
960 | /* Do a R_MIPS_LO16 relocation. This is a straightforward 16 bit | |
961 | inplace relocation; this function exists in order to do the | |
962 | R_MIPS_HI16 relocation described above. */ | |
963 | ||
bc05732b ILT |
964 | bfd_reloc_status_type |
965 | _bfd_mips_elf_lo16_reloc (abfd, | |
b3c0fc57 ILT |
966 | reloc_entry, |
967 | symbol, | |
968 | data, | |
969 | input_section, | |
6e07e54f ILT |
970 | output_bfd, |
971 | error_message) | |
b3c0fc57 ILT |
972 | bfd *abfd; |
973 | arelent *reloc_entry; | |
974 | asymbol *symbol; | |
975 | PTR data; | |
976 | asection *input_section; | |
977 | bfd *output_bfd; | |
6e07e54f | 978 | char **error_message; |
b3c0fc57 | 979 | { |
5b3b9ff6 | 980 | arelent gp_disp_relent; |
b3c0fc57 | 981 | |
abec70b9 | 982 | if (mips_hi16_list != NULL) |
b3c0fc57 | 983 | { |
abec70b9 ILT |
984 | struct mips_hi16 *l; |
985 | ||
986 | l = mips_hi16_list; | |
987 | while (l != NULL) | |
5b3b9ff6 | 988 | { |
abec70b9 ILT |
989 | unsigned long insn; |
990 | unsigned long val; | |
991 | unsigned long vallo; | |
992 | struct mips_hi16 *next; | |
993 | ||
994 | /* Do the HI16 relocation. Note that we actually don't need | |
995 | to know anything about the LO16 itself, except where to | |
996 | find the low 16 bits of the addend needed by the LO16. */ | |
997 | insn = bfd_get_32 (abfd, l->addr); | |
998 | vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) | |
999 | & 0xffff); | |
1000 | val = ((insn & 0xffff) << 16) + vallo; | |
1001 | val += l->addend; | |
1002 | ||
1003 | /* The low order 16 bits are always treated as a signed | |
1004 | value. Therefore, a negative value in the low order bits | |
1005 | requires an adjustment in the high order bits. We need | |
1006 | to make this adjustment in two ways: once for the bits we | |
1007 | took from the data, and once for the bits we are putting | |
1008 | back in to the data. */ | |
1009 | if ((vallo & 0x8000) != 0) | |
1010 | val -= 0x10000; | |
1011 | if ((val & 0x8000) != 0) | |
1012 | val += 0x10000; | |
1013 | ||
1014 | insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); | |
1015 | bfd_put_32 (abfd, insn, l->addr); | |
1016 | ||
1017 | if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) | |
1018 | { | |
1019 | gp_disp_relent = *reloc_entry; | |
1020 | reloc_entry = &gp_disp_relent; | |
1021 | reloc_entry->addend = l->addend; | |
1022 | } | |
1023 | ||
1024 | next = l->next; | |
1025 | free (l); | |
1026 | l = next; | |
5b3b9ff6 | 1027 | } |
abec70b9 ILT |
1028 | |
1029 | mips_hi16_list = NULL; | |
5b3b9ff6 ILT |
1030 | } |
1031 | else if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) | |
1032 | { | |
1033 | bfd_reloc_status_type ret; | |
abec70b9 | 1034 | bfd_vma gp, relocation; |
5b3b9ff6 ILT |
1035 | |
1036 | /* FIXME: Does this case ever occur? */ | |
1037 | ||
abec70b9 | 1038 | ret = mips_elf_final_gp (output_bfd, symbol, true, error_message, &gp); |
5b3b9ff6 ILT |
1039 | if (ret != bfd_reloc_ok) |
1040 | return ret; | |
1041 | ||
abec70b9 | 1042 | relocation = gp - reloc_entry->address; |
5b3b9ff6 ILT |
1043 | relocation += symbol->section->output_section->vma; |
1044 | relocation += symbol->section->output_offset; | |
1045 | relocation += reloc_entry->addend; | |
1046 | ||
1047 | if (reloc_entry->address > input_section->_cooked_size) | |
1048 | return bfd_reloc_outofrange; | |
1049 | ||
1050 | gp_disp_relent = *reloc_entry; | |
1051 | reloc_entry = &gp_disp_relent; | |
1052 | reloc_entry->addend = relocation - 4; | |
b3c0fc57 ILT |
1053 | } |
1054 | ||
1055 | /* Now do the LO16 reloc in the usual way. */ | |
1056 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
6e07e54f ILT |
1057 | input_section, output_bfd, error_message); |
1058 | } | |
1059 | ||
1060 | /* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset | |
1061 | table used for PIC code. If the symbol is an external symbol, the | |
1062 | instruction is modified to contain the offset of the appropriate | |
1063 | entry in the global offset table. If the symbol is a section | |
1064 | symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit | |
1065 | addends are combined to form the real addend against the section | |
1066 | symbol; the GOT16 is modified to contain the offset of an entry in | |
1067 | the global offset table, and the LO16 is modified to offset it | |
1068 | appropriately. Thus an offset larger than 16 bits requires a | |
1069 | modified value in the global offset table. | |
1070 | ||
1071 | This implementation suffices for the assembler, but the linker does | |
1072 | not yet know how to create global offset tables. */ | |
1073 | ||
bc05732b ILT |
1074 | bfd_reloc_status_type |
1075 | _bfd_mips_elf_got16_reloc (abfd, | |
6e07e54f ILT |
1076 | reloc_entry, |
1077 | symbol, | |
1078 | data, | |
1079 | input_section, | |
1080 | output_bfd, | |
1081 | error_message) | |
1082 | bfd *abfd; | |
1083 | arelent *reloc_entry; | |
1084 | asymbol *symbol; | |
1085 | PTR data; | |
1086 | asection *input_section; | |
1087 | bfd *output_bfd; | |
1088 | char **error_message; | |
1089 | { | |
1090 | /* If we're relocating, and this an external symbol, we don't want | |
1091 | to change anything. */ | |
1092 | if (output_bfd != (bfd *) NULL | |
1093 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1094 | && reloc_entry->addend == 0) | |
1095 | { | |
1096 | reloc_entry->address += input_section->output_offset; | |
1097 | return bfd_reloc_ok; | |
1098 | } | |
1099 | ||
1100 | /* If we're relocating, and this is a local symbol, we can handle it | |
1101 | just like HI16. */ | |
1102 | if (output_bfd != (bfd *) NULL | |
1103 | && (symbol->flags & BSF_SECTION_SYM) != 0) | |
bc05732b ILT |
1104 | return _bfd_mips_elf_hi16_reloc (abfd, reloc_entry, symbol, data, |
1105 | input_section, output_bfd, error_message); | |
6e07e54f ILT |
1106 | |
1107 | abort (); | |
b3c0fc57 ILT |
1108 | } |
1109 | ||
5b3b9ff6 ILT |
1110 | /* We have to figure out the gp value, so that we can adjust the |
1111 | symbol value correctly. We look up the symbol _gp in the output | |
1112 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
1113 | target data. We don't need to adjust the symbol value for an | |
1114 | external symbol if we are producing relocateable output. */ | |
a16fcab3 | 1115 | |
b3c0fc57 | 1116 | static bfd_reloc_status_type |
abec70b9 | 1117 | mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, pgp) |
b3c0fc57 | 1118 | bfd *output_bfd; |
5b3b9ff6 ILT |
1119 | asymbol *symbol; |
1120 | boolean relocateable; | |
6e07e54f | 1121 | char **error_message; |
abec70b9 | 1122 | bfd_vma *pgp; |
b3c0fc57 | 1123 | { |
24f13b03 | 1124 | if (bfd_is_und_section (symbol->section) |
5b3b9ff6 | 1125 | && ! relocateable) |
abec70b9 ILT |
1126 | { |
1127 | *pgp = 0; | |
1128 | return bfd_reloc_undefined; | |
1129 | } | |
a16fcab3 | 1130 | |
abec70b9 ILT |
1131 | *pgp = _bfd_get_gp_value (output_bfd); |
1132 | if (*pgp == 0 | |
5b3b9ff6 | 1133 | && (! relocateable |
b3c0fc57 ILT |
1134 | || (symbol->flags & BSF_SECTION_SYM) != 0)) |
1135 | { | |
5b3b9ff6 | 1136 | if (relocateable) |
b3c0fc57 ILT |
1137 | { |
1138 | /* Make up a value. */ | |
abec70b9 ILT |
1139 | *pgp = symbol->section->output_section->vma + 0x4000; |
1140 | _bfd_set_gp_value (output_bfd, *pgp); | |
b3c0fc57 ILT |
1141 | } |
1142 | else | |
1143 | { | |
1144 | unsigned int count; | |
1145 | asymbol **sym; | |
1146 | unsigned int i; | |
1147 | ||
1148 | count = bfd_get_symcount (output_bfd); | |
1149 | sym = bfd_get_outsymbols (output_bfd); | |
1150 | ||
1151 | if (sym == (asymbol **) NULL) | |
1152 | i = count; | |
1153 | else | |
1154 | { | |
1155 | for (i = 0; i < count; i++, sym++) | |
1156 | { | |
1157 | register CONST char *name; | |
1158 | ||
1159 | name = bfd_asymbol_name (*sym); | |
1160 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
1161 | { | |
abec70b9 ILT |
1162 | *pgp = bfd_asymbol_value (*sym); |
1163 | _bfd_set_gp_value (output_bfd, *pgp); | |
b3c0fc57 ILT |
1164 | break; |
1165 | } | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | if (i >= count) | |
1170 | { | |
1171 | /* Only get the error once. */ | |
abec70b9 ILT |
1172 | *pgp = 4; |
1173 | _bfd_set_gp_value (output_bfd, *pgp); | |
6e07e54f | 1174 | *error_message = |
edac2b4c | 1175 | (char *) _("GP relative relocation when _gp not defined"); |
b3c0fc57 ILT |
1176 | return bfd_reloc_dangerous; |
1177 | } | |
1178 | } | |
1179 | } | |
1180 | ||
5b3b9ff6 ILT |
1181 | return bfd_reloc_ok; |
1182 | } | |
1183 | ||
1184 | /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must | |
1185 | become the offset from the gp register. This function also handles | |
1186 | R_MIPS_LITERAL relocations, although those can be handled more | |
1187 | cleverly because the entries in the .lit8 and .lit4 sections can be | |
1188 | merged. */ | |
1189 | ||
1190 | static bfd_reloc_status_type gprel16_with_gp PARAMS ((bfd *, asymbol *, | |
1191 | arelent *, asection *, | |
1192 | boolean, PTR, bfd_vma)); | |
1193 | ||
bc05732b ILT |
1194 | bfd_reloc_status_type |
1195 | _bfd_mips_elf_gprel16_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1196 | output_bfd, error_message) | |
5b3b9ff6 ILT |
1197 | bfd *abfd; |
1198 | arelent *reloc_entry; | |
1199 | asymbol *symbol; | |
1200 | PTR data; | |
1201 | asection *input_section; | |
1202 | bfd *output_bfd; | |
1203 | char **error_message; | |
1204 | { | |
1205 | boolean relocateable; | |
1206 | bfd_reloc_status_type ret; | |
abec70b9 | 1207 | bfd_vma gp; |
5b3b9ff6 ILT |
1208 | |
1209 | /* If we're relocating, and this is an external symbol with no | |
1210 | addend, we don't want to change anything. We will only have an | |
1211 | addend if this is a newly created reloc, not read from an ELF | |
1212 | file. */ | |
1213 | if (output_bfd != (bfd *) NULL | |
1214 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1215 | && reloc_entry->addend == 0) | |
1216 | { | |
1217 | reloc_entry->address += input_section->output_offset; | |
1218 | return bfd_reloc_ok; | |
1219 | } | |
1220 | ||
1221 | if (output_bfd != (bfd *) NULL) | |
1222 | relocateable = true; | |
1223 | else | |
1224 | { | |
1225 | relocateable = false; | |
1226 | output_bfd = symbol->section->output_section->owner; | |
1227 | } | |
1228 | ||
abec70b9 ILT |
1229 | ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, |
1230 | &gp); | |
5b3b9ff6 ILT |
1231 | if (ret != bfd_reloc_ok) |
1232 | return ret; | |
1233 | ||
a2546fce | 1234 | return gprel16_with_gp (abfd, symbol, reloc_entry, input_section, |
abec70b9 | 1235 | relocateable, data, gp); |
a16fcab3 KR |
1236 | } |
1237 | ||
1238 | static bfd_reloc_status_type | |
1239 | gprel16_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data, | |
1240 | gp) | |
1241 | bfd *abfd; | |
1242 | asymbol *symbol; | |
1243 | arelent *reloc_entry; | |
1244 | asection *input_section; | |
1245 | boolean relocateable; | |
1246 | PTR data; | |
1247 | bfd_vma gp; | |
1248 | { | |
1249 | bfd_vma relocation; | |
1250 | unsigned long insn; | |
1251 | unsigned long val; | |
1252 | ||
b3c0fc57 ILT |
1253 | if (bfd_is_com_section (symbol->section)) |
1254 | relocation = 0; | |
1255 | else | |
1256 | relocation = symbol->value; | |
1257 | ||
1258 | relocation += symbol->section->output_section->vma; | |
1259 | relocation += symbol->section->output_offset; | |
1260 | ||
1261 | if (reloc_entry->address > input_section->_cooked_size) | |
1262 | return bfd_reloc_outofrange; | |
1263 | ||
1264 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
1265 | ||
1266 | /* Set val to the offset into the section or symbol. */ | |
bc05732b ILT |
1267 | if (reloc_entry->howto->src_mask == 0) |
1268 | { | |
1269 | /* This case occurs with the 64-bit MIPS ELF ABI. */ | |
1270 | val = reloc_entry->addend; | |
1271 | } | |
1272 | else | |
1273 | { | |
1274 | val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; | |
1275 | if (val & 0x8000) | |
1276 | val -= 0x10000; | |
1277 | } | |
b3c0fc57 ILT |
1278 | |
1279 | /* Adjust val for the final section location and GP value. If we | |
1280 | are producing relocateable output, we don't want to do this for | |
1281 | an external symbol. */ | |
5b3b9ff6 | 1282 | if (! relocateable |
b3c0fc57 | 1283 | || (symbol->flags & BSF_SECTION_SYM) != 0) |
a16fcab3 | 1284 | val += relocation - gp; |
b3c0fc57 ILT |
1285 | |
1286 | insn = (insn &~ 0xffff) | (val & 0xffff); | |
1287 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
1288 | ||
5b3b9ff6 | 1289 | if (relocateable) |
b3c0fc57 ILT |
1290 | reloc_entry->address += input_section->output_offset; |
1291 | ||
1292 | /* Make sure it fit in 16 bits. */ | |
1293 | if (val >= 0x8000 && val < 0xffff8000) | |
6e07e54f | 1294 | return bfd_reloc_overflow; |
b3c0fc57 ILT |
1295 | |
1296 | return bfd_reloc_ok; | |
1297 | } | |
6b4b4d17 | 1298 | |
5b3b9ff6 ILT |
1299 | /* Do a R_MIPS_GPREL32 relocation. Is this 32 bit value the offset |
1300 | from the gp register? XXX */ | |
1301 | ||
1302 | static bfd_reloc_status_type gprel32_with_gp PARAMS ((bfd *, asymbol *, | |
1303 | arelent *, asection *, | |
1304 | boolean, PTR, bfd_vma)); | |
1305 | ||
bc05732b ILT |
1306 | bfd_reloc_status_type |
1307 | _bfd_mips_elf_gprel32_reloc (abfd, | |
5b3b9ff6 ILT |
1308 | reloc_entry, |
1309 | symbol, | |
1310 | data, | |
1311 | input_section, | |
1312 | output_bfd, | |
1313 | error_message) | |
1314 | bfd *abfd; | |
1315 | arelent *reloc_entry; | |
1316 | asymbol *symbol; | |
1317 | PTR data; | |
1318 | asection *input_section; | |
1319 | bfd *output_bfd; | |
1320 | char **error_message; | |
1321 | { | |
1322 | boolean relocateable; | |
1323 | bfd_reloc_status_type ret; | |
abec70b9 | 1324 | bfd_vma gp; |
5b3b9ff6 ILT |
1325 | |
1326 | /* If we're relocating, and this is an external symbol with no | |
1327 | addend, we don't want to change anything. We will only have an | |
1328 | addend if this is a newly created reloc, not read from an ELF | |
1329 | file. */ | |
1330 | if (output_bfd != (bfd *) NULL | |
1331 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1332 | && reloc_entry->addend == 0) | |
1333 | { | |
1334 | *error_message = (char *) | |
edac2b4c | 1335 | _("32bits gp relative relocation occurs for an external symbol"); |
5b3b9ff6 ILT |
1336 | return bfd_reloc_outofrange; |
1337 | } | |
1338 | ||
1339 | if (output_bfd != (bfd *) NULL) | |
abec70b9 ILT |
1340 | { |
1341 | relocateable = true; | |
1342 | gp = _bfd_get_gp_value (output_bfd); | |
1343 | } | |
5b3b9ff6 ILT |
1344 | else |
1345 | { | |
1346 | relocateable = false; | |
1347 | output_bfd = symbol->section->output_section->owner; | |
1348 | ||
1349 | ret = mips_elf_final_gp (output_bfd, symbol, relocateable, | |
abec70b9 | 1350 | error_message, &gp); |
5b3b9ff6 ILT |
1351 | if (ret != bfd_reloc_ok) |
1352 | return ret; | |
1353 | } | |
1354 | ||
1355 | return gprel32_with_gp (abfd, symbol, reloc_entry, input_section, | |
abec70b9 | 1356 | relocateable, data, gp); |
5b3b9ff6 ILT |
1357 | } |
1358 | ||
1359 | static bfd_reloc_status_type | |
1360 | gprel32_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data, | |
1361 | gp) | |
1362 | bfd *abfd; | |
1363 | asymbol *symbol; | |
1364 | arelent *reloc_entry; | |
1365 | asection *input_section; | |
1366 | boolean relocateable; | |
1367 | PTR data; | |
1368 | bfd_vma gp; | |
1369 | { | |
1370 | bfd_vma relocation; | |
1371 | unsigned long val; | |
1372 | ||
1373 | if (bfd_is_com_section (symbol->section)) | |
1374 | relocation = 0; | |
1375 | else | |
1376 | relocation = symbol->value; | |
1377 | ||
1378 | relocation += symbol->section->output_section->vma; | |
1379 | relocation += symbol->section->output_offset; | |
1380 | ||
1381 | if (reloc_entry->address > input_section->_cooked_size) | |
1382 | return bfd_reloc_outofrange; | |
1383 | ||
bc05732b ILT |
1384 | if (reloc_entry->howto->src_mask == 0) |
1385 | { | |
1386 | /* This case arises with the 64-bit MIPS ELF ABI. */ | |
1387 | val = 0; | |
1388 | } | |
1389 | else | |
1390 | val = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
5b3b9ff6 ILT |
1391 | |
1392 | /* Set val to the offset into the section or symbol. */ | |
1393 | val += reloc_entry->addend; | |
1394 | ||
1395 | /* Adjust val for the final section location and GP value. If we | |
1396 | are producing relocateable output, we don't want to do this for | |
1397 | an external symbol. */ | |
1398 | if (! relocateable | |
1399 | || (symbol->flags & BSF_SECTION_SYM) != 0) | |
1400 | val += relocation - gp; | |
1401 | ||
1402 | bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address); | |
1403 | ||
1404 | if (relocateable) | |
1405 | reloc_entry->address += input_section->output_offset; | |
1406 | ||
1407 | return bfd_reloc_ok; | |
1408 | } | |
1409 | ||
e4f4813f ILT |
1410 | /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are |
1411 | generated when addreses are 64 bits. The upper 32 bits are a simle | |
1412 | sign extension. */ | |
1413 | ||
1414 | static bfd_reloc_status_type | |
1415 | mips32_64bit_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1416 | output_bfd, error_message) | |
1417 | bfd *abfd; | |
1418 | arelent *reloc_entry; | |
1419 | asymbol *symbol; | |
1420 | PTR data; | |
1421 | asection *input_section; | |
1422 | bfd *output_bfd; | |
1423 | char **error_message; | |
1424 | { | |
1425 | bfd_reloc_status_type r; | |
1426 | arelent reloc32; | |
1427 | unsigned long val; | |
1428 | bfd_size_type addr; | |
1429 | ||
1430 | r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
1431 | input_section, output_bfd, error_message); | |
1432 | if (r != bfd_reloc_continue) | |
1433 | return r; | |
1434 | ||
1435 | /* Do a normal 32 bit relocation on the lower 32 bits. */ | |
1436 | reloc32 = *reloc_entry; | |
1437 | if (bfd_big_endian (abfd)) | |
1438 | reloc32.address += 4; | |
1439 | reloc32.howto = &elf_mips_howto_table[R_MIPS_32]; | |
1440 | r = bfd_perform_relocation (abfd, &reloc32, data, input_section, | |
1441 | output_bfd, error_message); | |
1442 | ||
1443 | /* Sign extend into the upper 32 bits. */ | |
1444 | val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address); | |
1445 | if ((val & 0x80000000) != 0) | |
1446 | val = 0xffffffff; | |
1447 | else | |
1448 | val = 0; | |
1449 | addr = reloc_entry->address; | |
1450 | if (bfd_little_endian (abfd)) | |
1451 | addr += 4; | |
1452 | bfd_put_32 (abfd, val, (bfd_byte *) data + addr); | |
1453 | ||
1454 | return r; | |
1455 | } | |
1456 | ||
1457 | /* Handle a mips16 jump. */ | |
1458 | ||
1459 | static bfd_reloc_status_type | |
1460 | mips16_jump_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1461 | output_bfd, error_message) | |
1462 | bfd *abfd; | |
1463 | arelent *reloc_entry; | |
1464 | asymbol *symbol; | |
1465 | PTR data; | |
1466 | asection *input_section; | |
1467 | bfd *output_bfd; | |
1468 | char **error_message; | |
1469 | { | |
1470 | if (output_bfd != (bfd *) NULL | |
1471 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1472 | && reloc_entry->addend == 0) | |
1473 | { | |
1474 | reloc_entry->address += input_section->output_offset; | |
1475 | return bfd_reloc_ok; | |
1476 | } | |
1477 | ||
1478 | /* FIXME. */ | |
ab66cc8d ILT |
1479 | { |
1480 | static boolean warned; | |
1481 | ||
1482 | if (! warned) | |
1483 | (*_bfd_error_handler) | |
edac2b4c | 1484 | (_("Linking mips16 objects into %s format is not supported"), |
ab66cc8d ILT |
1485 | bfd_get_target (input_section->output_section->owner)); |
1486 | warned = true; | |
1487 | } | |
1488 | ||
1489 | return bfd_reloc_undefined; | |
e4f4813f ILT |
1490 | } |
1491 | ||
85d6f0b4 ILT |
1492 | /* Handle a mips16 GP relative reloc. */ |
1493 | ||
1494 | static bfd_reloc_status_type | |
1495 | mips16_gprel_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1496 | output_bfd, error_message) | |
1497 | bfd *abfd; | |
1498 | arelent *reloc_entry; | |
1499 | asymbol *symbol; | |
1500 | PTR data; | |
1501 | asection *input_section; | |
1502 | bfd *output_bfd; | |
1503 | char **error_message; | |
1504 | { | |
1505 | boolean relocateable; | |
1506 | bfd_reloc_status_type ret; | |
1507 | bfd_vma gp; | |
1508 | unsigned short extend, insn; | |
1509 | unsigned long final; | |
1510 | ||
1511 | /* If we're relocating, and this is an external symbol with no | |
1512 | addend, we don't want to change anything. We will only have an | |
1513 | addend if this is a newly created reloc, not read from an ELF | |
1514 | file. */ | |
1515 | if (output_bfd != NULL | |
1516 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1517 | && reloc_entry->addend == 0) | |
1518 | { | |
1519 | reloc_entry->address += input_section->output_offset; | |
1520 | return bfd_reloc_ok; | |
1521 | } | |
1522 | ||
1523 | if (output_bfd != NULL) | |
1524 | relocateable = true; | |
1525 | else | |
1526 | { | |
1527 | relocateable = false; | |
1528 | output_bfd = symbol->section->output_section->owner; | |
1529 | } | |
1530 | ||
1531 | ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, | |
1532 | &gp); | |
1533 | if (ret != bfd_reloc_ok) | |
1534 | return ret; | |
1535 | ||
1536 | if (reloc_entry->address > input_section->_cooked_size) | |
1537 | return bfd_reloc_outofrange; | |
1538 | ||
1539 | /* Pick up the mips16 extend instruction and the real instruction. */ | |
1540 | extend = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address); | |
1541 | insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address + 2); | |
1542 | ||
1543 | /* Stuff the current addend back as a 32 bit value, do the usual | |
1544 | relocation, and then clean up. */ | |
1545 | bfd_put_32 (abfd, | |
1546 | (((extend & 0x1f) << 11) | |
1547 | | (extend & 0x7e0) | |
1548 | | (insn & 0x1f)), | |
1549 | (bfd_byte *) data + reloc_entry->address); | |
1550 | ||
1551 | ret = gprel16_with_gp (abfd, symbol, reloc_entry, input_section, | |
1552 | relocateable, data, gp); | |
1553 | ||
1554 | final = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
1555 | bfd_put_16 (abfd, | |
1556 | ((extend & 0xf800) | |
1557 | | ((final >> 11) & 0x1f) | |
1558 | | (final & 0x7e0)), | |
1559 | (bfd_byte *) data + reloc_entry->address); | |
1560 | bfd_put_16 (abfd, | |
1561 | ((insn & 0xffe0) | |
1562 | | (final & 0x1f)), | |
1563 | (bfd_byte *) data + reloc_entry->address + 2); | |
1564 | ||
1565 | return ret; | |
1566 | } | |
1567 | ||
5e37b2da UD |
1568 | /* start-sanitize-sky */ |
1569 | /* Handle a dvp R_MIPS_DVP_U15_S3 reloc. | |
1570 | This is needed because the bits aren't contiguous. */ | |
1571 | ||
1572 | static bfd_reloc_status_type | |
1573 | dvp_u15_s3_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1574 | output_bfd, error_message) | |
1575 | bfd *abfd; | |
1576 | arelent *reloc_entry; | |
1577 | asymbol *symbol; | |
1578 | PTR data; | |
1579 | asection *input_section; | |
1580 | bfd *output_bfd; | |
1581 | char **error_message; | |
1582 | { | |
1583 | boolean relocateable; | |
1584 | bfd_reloc_status_type ret; | |
1585 | bfd_vma relocation; | |
1586 | bfd_vma x; | |
1587 | ||
1588 | /* If we're relocating, and this is an external symbol with no | |
1589 | addend, we don't want to change anything. We will only have an | |
1590 | addend if this is a newly created reloc, not read from an ELF | |
1591 | file. See bfd_elf_generic_reloc. */ | |
1592 | if (output_bfd != NULL | |
1593 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1594 | /* partial_inplace is false, so this test always succeeds, | |
1595 | but for clarity and consistency with bfd_elf_generic_reloc | |
1596 | this is left as is. */ | |
1597 | && (! reloc_entry->howto->partial_inplace | |
1598 | || reloc_entry->addend == 0)) | |
1599 | { | |
1600 | reloc_entry->address += input_section->output_offset; | |
1601 | return bfd_reloc_ok; | |
1602 | } | |
1603 | ||
1604 | if (reloc_entry->address > input_section->_cooked_size) | |
1605 | return bfd_reloc_outofrange; | |
1606 | ||
1607 | relocation = (symbol->value | |
1608 | + symbol->section->output_section->vma | |
1609 | + symbol->section->output_offset); | |
1610 | relocation += reloc_entry->addend; | |
1611 | relocation >>= 3; | |
1612 | ||
1613 | x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
1614 | x |= (((relocation & 0x7800) << 10) | |
1615 | | (relocation & 0x7ff)); | |
1616 | bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address); | |
1617 | ||
1618 | if (relocation & ~(bfd_vma) 0x7fff) | |
1619 | return bfd_reloc_overflow; | |
1620 | return bfd_reloc_ok; | |
1621 | } | |
1622 | ||
1623 | /* end-sanitize-sky */ | |
5641f23e ILT |
1624 | /* Return the ISA for a MIPS e_flags value. */ |
1625 | ||
1626 | static INLINE int | |
1627 | elf_mips_isa (flags) | |
1628 | flagword flags; | |
1629 | { | |
1630 | switch (flags & EF_MIPS_ARCH) | |
1631 | { | |
1632 | case E_MIPS_ARCH_1: | |
1633 | return 1; | |
1634 | case E_MIPS_ARCH_2: | |
1635 | return 2; | |
1636 | case E_MIPS_ARCH_3: | |
1637 | return 3; | |
1638 | case E_MIPS_ARCH_4: | |
1639 | return 4; | |
1640 | } | |
1641 | return 4; | |
1642 | } | |
1643 | ||
edac2b4c DE |
1644 | /* Return the MACH for a MIPS e_flags value. */ |
1645 | ||
1646 | static INLINE int | |
1647 | elf_mips_mach (flags) | |
1648 | flagword flags; | |
1649 | { | |
1650 | switch (flags & EF_MIPS_MACH) | |
1651 | { | |
1652 | case E_MIPS_MACH_3900: | |
1653 | return bfd_mach_mips3900; | |
5e37b2da | 1654 | |
edac2b4c DE |
1655 | case E_MIPS_MACH_4010: |
1656 | return bfd_mach_mips4010; | |
5e37b2da | 1657 | |
edac2b4c DE |
1658 | case E_MIPS_MACH_4100: |
1659 | return bfd_mach_mips4100; | |
1660 | /* start-sanitize-vr4320 */ | |
1661 | ||
1662 | case E_MIPS_MACH_4320: | |
1663 | return bfd_mach_mips4320; | |
1664 | /* end-sanitize-vr4320 */ | |
5e37b2da | 1665 | |
edac2b4c DE |
1666 | case E_MIPS_MACH_4650: |
1667 | return bfd_mach_mips4650; | |
1668 | /* start-sanitize-tx49 */ | |
1669 | ||
1670 | case E_MIPS_MACH_4900: | |
1671 | return bfd_mach_mips4900; | |
1672 | /* end-sanitize-tx49 */ | |
1a85826e KR |
1673 | /* start-sanitize-cygnus */ |
1674 | /* CYGNUS LOCAL vr5400/raeburn */ | |
5e37b2da | 1675 | |
edac2b4c DE |
1676 | case E_MIPS_MACH_5400: |
1677 | return bfd_mach_mips5400; | |
1a85826e | 1678 | /* end-sanitize-cygnus */ |
edac2b4c | 1679 | /* start-sanitize-r5900 */ |
5e37b2da | 1680 | |
edac2b4c DE |
1681 | case E_MIPS_MACH_5900: |
1682 | return bfd_mach_mips5900; | |
1683 | /* end-sanitize-r5900 */ | |
5e37b2da | 1684 | |
edac2b4c DE |
1685 | default: |
1686 | switch (flags & EF_MIPS_ARCH) | |
1687 | { | |
1688 | default: | |
1689 | case E_MIPS_ARCH_1: | |
1690 | return bfd_mach_mips3000; | |
1691 | break; | |
5e37b2da | 1692 | |
edac2b4c DE |
1693 | case E_MIPS_ARCH_2: |
1694 | return bfd_mach_mips6000; | |
1695 | break; | |
5e37b2da | 1696 | |
edac2b4c DE |
1697 | case E_MIPS_ARCH_3: |
1698 | return bfd_mach_mips4000; | |
1699 | break; | |
5e37b2da | 1700 | |
edac2b4c DE |
1701 | case E_MIPS_ARCH_4: |
1702 | return bfd_mach_mips8000; | |
1703 | break; | |
1704 | } | |
1705 | } | |
1706 | ||
1707 | return 0; | |
1708 | } | |
1709 | ||
b3c0fc57 | 1710 | /* A mapping from BFD reloc types to MIPS ELF reloc types. */ |
6b4b4d17 | 1711 | |
b3c0fc57 ILT |
1712 | struct elf_reloc_map { |
1713 | bfd_reloc_code_real_type bfd_reloc_val; | |
91e32e23 | 1714 | enum elf_mips_reloc_type elf_reloc_val; |
b3c0fc57 ILT |
1715 | }; |
1716 | ||
1717 | static CONST struct elf_reloc_map mips_reloc_map[] = | |
1718 | { | |
1719 | { BFD_RELOC_NONE, R_MIPS_NONE, }, | |
1720 | { BFD_RELOC_16, R_MIPS_16 }, | |
1721 | { BFD_RELOC_32, R_MIPS_32 }, | |
e4f4813f | 1722 | { BFD_RELOC_64, R_MIPS_64 }, |
b3c0fc57 ILT |
1723 | { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, |
1724 | { BFD_RELOC_HI16_S, R_MIPS_HI16 }, | |
1725 | { BFD_RELOC_LO16, R_MIPS_LO16 }, | |
1726 | { BFD_RELOC_MIPS_GPREL, R_MIPS_GPREL16 }, | |
1727 | { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, | |
1728 | { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, | |
1729 | { BFD_RELOC_16_PCREL, R_MIPS_PC16 }, | |
1730 | { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, | |
e9f03cd4 ILT |
1731 | { BFD_RELOC_MIPS_GPREL32, R_MIPS_GPREL32 }, |
1732 | { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, | |
b7384d22 ILT |
1733 | { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, |
1734 | { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, | |
1a85826e | 1735 | { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 } |
b3c0fc57 ILT |
1736 | }; |
1737 | ||
1738 | /* Given a BFD reloc type, return a howto structure. */ | |
1739 | ||
16fe8950 | 1740 | static reloc_howto_type * |
b3c0fc57 ILT |
1741 | bfd_elf32_bfd_reloc_type_lookup (abfd, code) |
1742 | bfd *abfd; | |
1743 | bfd_reloc_code_real_type code; | |
1744 | { | |
6ab826bd | 1745 | unsigned int i; |
b3c0fc57 ILT |
1746 | |
1747 | for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
1748 | { | |
1749 | if (mips_reloc_map[i].bfd_reloc_val == code) | |
1750 | return &elf_mips_howto_table[(int) mips_reloc_map[i].elf_reloc_val]; | |
1751 | } | |
e4f4813f | 1752 | |
303b4cc6 | 1753 | switch (code) |
5641f23e | 1754 | { |
1a85826e KR |
1755 | default: |
1756 | bfd_set_error (bfd_error_bad_value); | |
1757 | return NULL; | |
1758 | ||
303b4cc6 RH |
1759 | case BFD_RELOC_CTOR: |
1760 | /* We need to handle BFD_RELOC_CTOR specially. | |
1761 | Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the | |
1762 | size of addresses on this architecture. */ | |
edac2b4c | 1763 | if (bfd_arch_bits_per_address (abfd) == 32) |
5641f23e ILT |
1764 | return &elf_mips_howto_table[(int) R_MIPS_32]; |
1765 | else | |
1766 | return &elf_mips_ctor64_howto; | |
5641f23e | 1767 | |
303b4cc6 RH |
1768 | case BFD_RELOC_MIPS16_JMP: |
1769 | return &elf_mips16_jump_howto; | |
1770 | case BFD_RELOC_MIPS16_GPREL: | |
1771 | return &elf_mips16_gprel_howto; | |
1a85826e KR |
1772 | /* start-sanitize-r5900 */ |
1773 | case BFD_RELOC_MIPS15_S3: | |
1774 | return &elf_mips15_s3_howto; | |
1775 | /* end-sanitize-r5900 */ | |
3134a2bd | 1776 | /* start-sanitize-sky */ |
303b4cc6 RH |
1777 | case BFD_RELOC_MIPS_DVP_11_PCREL: |
1778 | return &elf_mips_dvp_11_pcrel_howto; | |
1779 | case BFD_RELOC_MIPS_DVP_27_S4: | |
1780 | return &elf_mips_dvp_27_s4_howto; | |
5e37b2da UD |
1781 | case BFD_RELOC_MIPS_DVP_11_S4: |
1782 | return &elf_mips_dvp_11_s4_howto; | |
1783 | case BFD_RELOC_MIPS_DVP_U15_S3: | |
1784 | return &elf_mips_dvp_u15_s3_howto; | |
3134a2bd | 1785 | /* end-sanitize-sky */ |
303b4cc6 RH |
1786 | case BFD_RELOC_VTABLE_INHERIT: |
1787 | return &elf_mips_gnu_vtinherit_howto; | |
1788 | case BFD_RELOC_VTABLE_ENTRY: | |
1789 | return &elf_mips_gnu_vtentry_howto; | |
1790 | } | |
b3c0fc57 ILT |
1791 | } |
1792 | ||
1793 | /* Given a MIPS reloc type, fill in an arelent structure. */ | |
1794 | ||
1795 | static void | |
1796 | mips_info_to_howto_rel (abfd, cache_ptr, dst) | |
1797 | bfd *abfd; | |
1798 | arelent *cache_ptr; | |
1799 | Elf32_Internal_Rel *dst; | |
1800 | { | |
1801 | unsigned int r_type; | |
1802 | ||
1803 | r_type = ELF32_R_TYPE (dst->r_info); | |
303b4cc6 RH |
1804 | switch (r_type) |
1805 | { | |
1806 | case R_MIPS16_26: | |
1807 | cache_ptr->howto = &elf_mips16_jump_howto; | |
1808 | break; | |
1809 | case R_MIPS16_GPREL: | |
1810 | cache_ptr->howto = &elf_mips16_gprel_howto; | |
1811 | break; | |
1a85826e KR |
1812 | /* start-sanitize-r5900 */ |
1813 | case R_MIPS15_S3: | |
1814 | cache_ptr->howto = &elf_mips15_s3_howto; | |
1815 | break; | |
1816 | /* end-sanitize-r5900 */ | |
3134a2bd | 1817 | /* start-sanitize-sky */ |
303b4cc6 RH |
1818 | case R_MIPS_DVP_11_PCREL: |
1819 | cache_ptr->howto = &elf_mips_dvp_11_pcrel_howto; | |
1820 | break; | |
1821 | case R_MIPS_DVP_27_S4: | |
1822 | cache_ptr->howto = &elf_mips_dvp_27_s4_howto; | |
1823 | break; | |
5e37b2da UD |
1824 | case R_MIPS_DVP_11_S4: |
1825 | cache_ptr->howto = &elf_mips_dvp_11_s4_howto; | |
1826 | break; | |
1827 | case R_MIPS_DVP_U15_S3: | |
1828 | cache_ptr->howto = &elf_mips_dvp_u15_s3_howto; | |
1829 | break; | |
3134a2bd | 1830 | /* end-sanitize-sky */ |
303b4cc6 RH |
1831 | case R_MIPS_GNU_VTINHERIT: |
1832 | cache_ptr->howto = &elf_mips_gnu_vtinherit_howto; | |
1833 | break; | |
1834 | case R_MIPS_GNU_VTENTRY: | |
1835 | cache_ptr->howto = &elf_mips_gnu_vtentry_howto; | |
1836 | break; | |
1837 | ||
1838 | default: | |
e4f4813f ILT |
1839 | BFD_ASSERT (r_type < (unsigned int) R_MIPS_max); |
1840 | cache_ptr->howto = &elf_mips_howto_table[r_type]; | |
303b4cc6 | 1841 | break; |
e4f4813f | 1842 | } |
b3c0fc57 ILT |
1843 | |
1844 | /* The addend for a GPREL16 or LITERAL relocation comes from the GP | |
1845 | value for the object file. We get the addend now, rather than | |
1846 | when we do the relocation, because the symbol manipulations done | |
1847 | by the linker may cause us to lose track of the input BFD. */ | |
1848 | if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0 | |
1849 | && (r_type == (unsigned int) R_MIPS_GPREL16 | |
1850 | || r_type == (unsigned int) R_MIPS_LITERAL)) | |
1851 | cache_ptr->addend = elf_gp (abfd); | |
1852 | } | |
1853 | \f | |
1854 | /* A .reginfo section holds a single Elf32_RegInfo structure. These | |
1855 | routines swap this structure in and out. They are used outside of | |
1856 | BFD, so they are globally visible. */ | |
1857 | ||
1858 | void | |
1859 | bfd_mips_elf32_swap_reginfo_in (abfd, ex, in) | |
1860 | bfd *abfd; | |
1861 | const Elf32_External_RegInfo *ex; | |
1862 | Elf32_RegInfo *in; | |
1863 | { | |
1864 | in->ri_gprmask = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gprmask); | |
1865 | in->ri_cprmask[0] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[0]); | |
1866 | in->ri_cprmask[1] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[1]); | |
1867 | in->ri_cprmask[2] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[2]); | |
1868 | in->ri_cprmask[3] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[3]); | |
1869 | in->ri_gp_value = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gp_value); | |
1870 | } | |
1871 | ||
1872 | void | |
1873 | bfd_mips_elf32_swap_reginfo_out (abfd, in, ex) | |
1874 | bfd *abfd; | |
1875 | const Elf32_RegInfo *in; | |
1876 | Elf32_External_RegInfo *ex; | |
1877 | { | |
1878 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_gprmask, | |
1879 | (bfd_byte *) ex->ri_gprmask); | |
1880 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[0], | |
1881 | (bfd_byte *) ex->ri_cprmask[0]); | |
1882 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[1], | |
1883 | (bfd_byte *) ex->ri_cprmask[1]); | |
1884 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[2], | |
1885 | (bfd_byte *) ex->ri_cprmask[2]); | |
1886 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[3], | |
1887 | (bfd_byte *) ex->ri_cprmask[3]); | |
1888 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_gp_value, | |
1889 | (bfd_byte *) ex->ri_gp_value); | |
1890 | } | |
aac6b32f | 1891 | |
903612a2 ILT |
1892 | /* In the 64 bit ABI, the .MIPS.options section holds register |
1893 | information in an Elf64_Reginfo structure. These routines swap | |
1894 | them in and out. They are globally visible because they are used | |
1895 | outside of BFD. These routines are here so that gas can call them | |
1896 | without worrying about whether the 64 bit ABI has been included. */ | |
1897 | ||
1898 | void | |
1899 | bfd_mips_elf64_swap_reginfo_in (abfd, ex, in) | |
1900 | bfd *abfd; | |
1901 | const Elf64_External_RegInfo *ex; | |
1902 | Elf64_Internal_RegInfo *in; | |
1903 | { | |
1904 | in->ri_gprmask = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gprmask); | |
1905 | in->ri_pad = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_pad); | |
1906 | in->ri_cprmask[0] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[0]); | |
1907 | in->ri_cprmask[1] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[1]); | |
1908 | in->ri_cprmask[2] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[2]); | |
1909 | in->ri_cprmask[3] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[3]); | |
1910 | in->ri_gp_value = bfd_h_get_64 (abfd, (bfd_byte *) ex->ri_gp_value); | |
1911 | } | |
1912 | ||
1913 | void | |
1914 | bfd_mips_elf64_swap_reginfo_out (abfd, in, ex) | |
1915 | bfd *abfd; | |
1916 | const Elf64_Internal_RegInfo *in; | |
1917 | Elf64_External_RegInfo *ex; | |
1918 | { | |
1919 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_gprmask, | |
1920 | (bfd_byte *) ex->ri_gprmask); | |
1921 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_pad, | |
1922 | (bfd_byte *) ex->ri_pad); | |
1923 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[0], | |
1924 | (bfd_byte *) ex->ri_cprmask[0]); | |
1925 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[1], | |
1926 | (bfd_byte *) ex->ri_cprmask[1]); | |
1927 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[2], | |
1928 | (bfd_byte *) ex->ri_cprmask[2]); | |
1929 | bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[3], | |
1930 | (bfd_byte *) ex->ri_cprmask[3]); | |
1931 | bfd_h_put_64 (abfd, (bfd_vma) in->ri_gp_value, | |
1932 | (bfd_byte *) ex->ri_gp_value); | |
1933 | } | |
1934 | ||
aac6b32f ILT |
1935 | /* Swap an entry in a .gptab section. Note that these routines rely |
1936 | on the equivalence of the two elements of the union. */ | |
1937 | ||
1938 | static void | |
1939 | bfd_mips_elf32_swap_gptab_in (abfd, ex, in) | |
1940 | bfd *abfd; | |
1941 | const Elf32_External_gptab *ex; | |
1942 | Elf32_gptab *in; | |
1943 | { | |
1944 | in->gt_entry.gt_g_value = bfd_h_get_32 (abfd, ex->gt_entry.gt_g_value); | |
1945 | in->gt_entry.gt_bytes = bfd_h_get_32 (abfd, ex->gt_entry.gt_bytes); | |
1946 | } | |
1947 | ||
1948 | static void | |
1949 | bfd_mips_elf32_swap_gptab_out (abfd, in, ex) | |
1950 | bfd *abfd; | |
1951 | const Elf32_gptab *in; | |
1952 | Elf32_External_gptab *ex; | |
1953 | { | |
1954 | bfd_h_put_32 (abfd, (bfd_vma) in->gt_entry.gt_g_value, | |
1955 | ex->gt_entry.gt_g_value); | |
1956 | bfd_h_put_32 (abfd, (bfd_vma) in->gt_entry.gt_bytes, | |
1957 | ex->gt_entry.gt_bytes); | |
1958 | } | |
5b3b9ff6 ILT |
1959 | |
1960 | static void | |
1961 | bfd_elf32_swap_compact_rel_out (abfd, in, ex) | |
1962 | bfd *abfd; | |
53787b23 | 1963 | const Elf32_compact_rel *in; |
5b3b9ff6 ILT |
1964 | Elf32_External_compact_rel *ex; |
1965 | { | |
1966 | bfd_h_put_32 (abfd, (bfd_vma) in->id1, ex->id1); | |
1967 | bfd_h_put_32 (abfd, (bfd_vma) in->num, ex->num); | |
1968 | bfd_h_put_32 (abfd, (bfd_vma) in->id2, ex->id2); | |
1969 | bfd_h_put_32 (abfd, (bfd_vma) in->offset, ex->offset); | |
1970 | bfd_h_put_32 (abfd, (bfd_vma) in->reserved0, ex->reserved0); | |
1971 | bfd_h_put_32 (abfd, (bfd_vma) in->reserved1, ex->reserved1); | |
1972 | } | |
1973 | ||
1974 | static void | |
1975 | bfd_elf32_swap_crinfo_out (abfd, in, ex) | |
1976 | bfd *abfd; | |
53787b23 | 1977 | const Elf32_crinfo *in; |
5b3b9ff6 ILT |
1978 | Elf32_External_crinfo *ex; |
1979 | { | |
053baeb1 ILT |
1980 | unsigned long l; |
1981 | ||
1982 | l = (((in->ctype & CRINFO_CTYPE) << CRINFO_CTYPE_SH) | |
1983 | | ((in->rtype & CRINFO_RTYPE) << CRINFO_RTYPE_SH) | |
1984 | | ((in->dist2to & CRINFO_DIST2TO) << CRINFO_DIST2TO_SH) | |
1985 | | ((in->relvaddr & CRINFO_RELVADDR) << CRINFO_RELVADDR_SH)); | |
1986 | bfd_h_put_32 (abfd, (bfd_vma) l, ex->info); | |
5b3b9ff6 ILT |
1987 | bfd_h_put_32 (abfd, (bfd_vma) in->konst, ex->konst); |
1988 | bfd_h_put_32 (abfd, (bfd_vma) in->vaddr, ex->vaddr); | |
1989 | } | |
bc05732b ILT |
1990 | |
1991 | /* Swap in an options header. */ | |
1992 | ||
1993 | void | |
1994 | bfd_mips_elf_swap_options_in (abfd, ex, in) | |
1995 | bfd *abfd; | |
1996 | const Elf_External_Options *ex; | |
1997 | Elf_Internal_Options *in; | |
1998 | { | |
1999 | in->kind = bfd_h_get_8 (abfd, ex->kind); | |
2000 | in->size = bfd_h_get_8 (abfd, ex->size); | |
2001 | in->section = bfd_h_get_16 (abfd, ex->section); | |
2002 | in->info = bfd_h_get_32 (abfd, ex->info); | |
2003 | } | |
2004 | ||
2005 | /* Swap out an options header. */ | |
2006 | ||
2007 | void | |
2008 | bfd_mips_elf_swap_options_out (abfd, in, ex) | |
2009 | bfd *abfd; | |
2010 | const Elf_Internal_Options *in; | |
2011 | Elf_External_Options *ex; | |
2012 | { | |
2013 | bfd_h_put_8 (abfd, in->kind, ex->kind); | |
2014 | bfd_h_put_8 (abfd, in->size, ex->size); | |
2015 | bfd_h_put_16 (abfd, in->section, ex->section); | |
2016 | bfd_h_put_32 (abfd, in->info, ex->info); | |
2017 | } | |
5b3b9ff6 ILT |
2018 | \f |
2019 | /* Determine whether a symbol is global for the purposes of splitting | |
2020 | the symbol table into global symbols and local symbols. At least | |
6e07e54f ILT |
2021 | on Irix 5, this split must be between section symbols and all other |
2022 | symbols. On most ELF targets the split is between static symbols | |
2023 | and externally visible symbols. */ | |
2024 | ||
2025 | /*ARGSUSED*/ | |
2026 | static boolean | |
2027 | mips_elf_sym_is_global (abfd, sym) | |
2028 | bfd *abfd; | |
2029 | asymbol *sym; | |
2030 | { | |
2031 | return (sym->flags & BSF_SECTION_SYM) == 0 ? true : false; | |
2032 | } | |
2033 | \f | |
00176555 ILT |
2034 | /* Set the right machine number for a MIPS ELF file. This is used for |
2035 | both the 32-bit and the 64-bit ABI. */ | |
6e07e54f | 2036 | |
00176555 ILT |
2037 | boolean |
2038 | _bfd_mips_elf_object_p (abfd) | |
6e07e54f ILT |
2039 | bfd *abfd; |
2040 | { | |
5e37b2da | 2041 | bfd_default_set_arch_mach (abfd, bfd_arch_mips, |
edac2b4c | 2042 | elf_mips_mach (elf_elfheader (abfd)->e_flags)); |
00176555 ILT |
2043 | return true; |
2044 | } | |
2045 | ||
2046 | /* Set the right machine number for a 32-bit MIPS ELF file. */ | |
2047 | ||
2048 | static boolean | |
2049 | mips_elf32_object_p (abfd) | |
2050 | bfd *abfd; | |
2051 | { | |
aac6b32f ILT |
2052 | /* Irix 5 is broken. Object file symbol tables are not always |
2053 | sorted correctly such that local symbols precede global symbols, | |
6c495350 ILT |
2054 | and the sh_info field in the symbol table is not always right. */ |
2055 | elf_bad_symtab (abfd) = true; | |
aac6b32f | 2056 | |
00176555 | 2057 | return _bfd_mips_elf_object_p (abfd); |
6e07e54f ILT |
2058 | } |
2059 | ||
2060 | /* The final processing done just before writing out a MIPS ELF object | |
2061 | file. This gets the MIPS architecture right based on the machine | |
00176555 | 2062 | number. This is used by both the 32-bit and the 64-bit ABI. */ |
6e07e54f | 2063 | |
24f13b03 | 2064 | /*ARGSUSED*/ |
00176555 ILT |
2065 | void |
2066 | _bfd_mips_elf_final_write_processing (abfd, linker) | |
6e07e54f | 2067 | bfd *abfd; |
24f13b03 | 2068 | boolean linker; |
6e07e54f ILT |
2069 | { |
2070 | unsigned long val; | |
aac6b32f ILT |
2071 | unsigned int i; |
2072 | Elf_Internal_Shdr **hdrpp; | |
1cfe12f2 ILT |
2073 | const char *name; |
2074 | asection *sec; | |
6e07e54f ILT |
2075 | |
2076 | switch (bfd_get_mach (abfd)) | |
2077 | { | |
edac2b4c DE |
2078 | default: |
2079 | case bfd_mach_mips3000: | |
6e07e54f ILT |
2080 | val = E_MIPS_ARCH_1; |
2081 | break; | |
5e37b2da | 2082 | |
edac2b4c DE |
2083 | case bfd_mach_mips3900: |
2084 | val = E_MIPS_ARCH_1 | E_MIPS_MACH_3900; | |
2085 | break; | |
5e37b2da | 2086 | |
edac2b4c | 2087 | case bfd_mach_mips6000: |
6e07e54f ILT |
2088 | val = E_MIPS_ARCH_2; |
2089 | break; | |
2090 | ||
edac2b4c | 2091 | case bfd_mach_mips4000: |
6e07e54f ILT |
2092 | val = E_MIPS_ARCH_3; |
2093 | break; | |
2094 | ||
edac2b4c DE |
2095 | case bfd_mach_mips4010: |
2096 | val = E_MIPS_ARCH_3 | E_MIPS_MACH_4010; | |
cabd8fa0 ILT |
2097 | break; |
2098 | ||
edac2b4c DE |
2099 | case bfd_mach_mips4100: |
2100 | val = E_MIPS_ARCH_3 | E_MIPS_MACH_4100; | |
2101 | break; | |
2102 | /* start-sanitize-vr4320 */ | |
2103 | ||
2104 | case bfd_mach_mips4320: | |
2105 | val = E_MIPS_ARCH_3 | E_MIPS_MACH_4320; | |
2106 | break; | |
2107 | /* end-sanitize-vr4320 */ | |
2108 | ||
2109 | case bfd_mach_mips4650: | |
2110 | val = E_MIPS_ARCH_3 | E_MIPS_MACH_4650; | |
2111 | break; | |
2112 | /* start-sanitize-tx49 */ | |
2113 | ||
2114 | case bfd_mach_mips4900: | |
2115 | val = E_MIPS_ARCH_3 | E_MIPS_MACH_4900; | |
2116 | break; | |
2117 | /* end-sanitize-tx49 */ | |
1a85826e KR |
2118 | /* start-sanitize-cygnus */ |
2119 | /* CYGNUS LOCAL vr5400/raeburn */ | |
edac2b4c DE |
2120 | |
2121 | case bfd_mach_mips5400: | |
2122 | val = E_MIPS_ARCH_3 | E_MIPS_MACH_5400; | |
2123 | break; | |
1a85826e | 2124 | /* end-sanitize-cygnus */ |
edac2b4c DE |
2125 | /* start-sanitize-r5900 */ |
2126 | ||
2127 | case bfd_mach_mips5900: | |
2128 | val = E_MIPS_ARCH_3 | E_MIPS_MACH_5900; | |
2129 | break; | |
2130 | /* end-sanitize-r5900 */ | |
2131 | ||
2132 | case bfd_mach_mips8000: | |
2133 | val = E_MIPS_ARCH_4; | |
5b3b9ff6 | 2134 | break; |
6e07e54f ILT |
2135 | } |
2136 | ||
edac2b4c | 2137 | elf_elfheader (abfd)->e_flags &= ~ (EF_MIPS_ARCH | EF_MIPS_MACH); |
6e07e54f | 2138 | elf_elfheader (abfd)->e_flags |= val; |
aac6b32f | 2139 | |
edac2b4c DE |
2140 | /* Set the sh_info field for .gptab sections and other appropriate |
2141 | info for each special section. */ | |
aac6b32f ILT |
2142 | for (i = 1, hdrpp = elf_elfsections (abfd) + 1; |
2143 | i < elf_elfheader (abfd)->e_shnum; | |
2144 | i++, hdrpp++) | |
2145 | { | |
1cfe12f2 | 2146 | switch ((*hdrpp)->sh_type) |
aac6b32f | 2147 | { |
1cfe12f2 ILT |
2148 | case SHT_MIPS_LIBLIST: |
2149 | sec = bfd_get_section_by_name (abfd, ".dynstr"); | |
2150 | if (sec != NULL) | |
2151 | (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; | |
2152 | break; | |
aac6b32f | 2153 | |
1cfe12f2 | 2154 | case SHT_MIPS_GPTAB: |
24f13b03 ILT |
2155 | BFD_ASSERT ((*hdrpp)->bfd_section != NULL); |
2156 | name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); | |
aac6b32f ILT |
2157 | BFD_ASSERT (name != NULL |
2158 | && strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0); | |
2159 | sec = bfd_get_section_by_name (abfd, name + sizeof ".gptab" - 1); | |
2160 | BFD_ASSERT (sec != NULL); | |
2161 | (*hdrpp)->sh_info = elf_section_data (sec)->this_idx; | |
1cfe12f2 ILT |
2162 | break; |
2163 | ||
2164 | case SHT_MIPS_CONTENT: | |
2165 | BFD_ASSERT ((*hdrpp)->bfd_section != NULL); | |
2166 | name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); | |
2167 | BFD_ASSERT (name != NULL | |
2168 | && strncmp (name, ".MIPS.content", | |
2169 | sizeof ".MIPS.content" - 1) == 0); | |
2170 | sec = bfd_get_section_by_name (abfd, | |
2171 | name + sizeof ".MIPS.content" - 1); | |
2172 | BFD_ASSERT (sec != NULL); | |
2173 | (*hdrpp)->sh_info = elf_section_data (sec)->this_idx; | |
2174 | break; | |
2175 | ||
2176 | case SHT_MIPS_SYMBOL_LIB: | |
2177 | sec = bfd_get_section_by_name (abfd, ".dynsym"); | |
2178 | if (sec != NULL) | |
2179 | (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; | |
2180 | sec = bfd_get_section_by_name (abfd, ".liblist"); | |
2181 | if (sec != NULL) | |
2182 | (*hdrpp)->sh_info = elf_section_data (sec)->this_idx; | |
2183 | break; | |
2184 | ||
2185 | case SHT_MIPS_EVENTS: | |
2186 | BFD_ASSERT ((*hdrpp)->bfd_section != NULL); | |
2187 | name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); | |
2188 | BFD_ASSERT (name != NULL); | |
2189 | if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0) | |
2190 | sec = bfd_get_section_by_name (abfd, | |
2191 | name + sizeof ".MIPS.events" - 1); | |
2192 | else | |
2193 | { | |
2194 | BFD_ASSERT (strncmp (name, ".MIPS.post_rel", | |
2195 | sizeof ".MIPS.post_rel" - 1) == 0); | |
2196 | sec = bfd_get_section_by_name (abfd, | |
2197 | (name | |
2198 | + sizeof ".MIPS.post_rel" - 1)); | |
2199 | } | |
2200 | BFD_ASSERT (sec != NULL); | |
2201 | (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; | |
2202 | break; | |
edac2b4c DE |
2203 | |
2204 | /* start-sanitize-sky */ | |
2205 | case SHT_DVP_OVERLAY_TABLE: | |
2206 | /* ??? This may not be technically necessary, just going with | |
2207 | the flow ... */ | |
2208 | sec = bfd_get_section_by_name (abfd, SHNAME_DVP_OVERLAY_STRTAB); | |
2209 | if (sec != NULL) | |
2210 | (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; | |
2211 | break; | |
2212 | /* end-sanitize-sky */ | |
aac6b32f ILT |
2213 | } |
2214 | } | |
6e07e54f ILT |
2215 | } |
2216 | \f | |
5b3b9ff6 ILT |
2217 | /* Function to keep MIPS specific file flags like as EF_MIPS_PIC. */ |
2218 | ||
bc05732b ILT |
2219 | boolean |
2220 | _bfd_mips_elf_set_private_flags (abfd, flags) | |
5b3b9ff6 ILT |
2221 | bfd *abfd; |
2222 | flagword flags; | |
2223 | { | |
2224 | BFD_ASSERT (!elf_flags_init (abfd) | |
2225 | || elf_elfheader (abfd)->e_flags == flags); | |
2226 | ||
2227 | elf_elfheader (abfd)->e_flags = flags; | |
2228 | elf_flags_init (abfd) = true; | |
2229 | return true; | |
2230 | } | |
2231 | ||
2232 | /* Copy backend specific data from one object module to another */ | |
2233 | ||
bc05732b ILT |
2234 | boolean |
2235 | _bfd_mips_elf_copy_private_bfd_data (ibfd, obfd) | |
5b3b9ff6 ILT |
2236 | bfd *ibfd; |
2237 | bfd *obfd; | |
2238 | { | |
fe4ff515 ILT |
2239 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
2240 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
5b3b9ff6 ILT |
2241 | return true; |
2242 | ||
2243 | BFD_ASSERT (!elf_flags_init (obfd) | |
2244 | || (elf_elfheader (obfd)->e_flags | |
2245 | == elf_elfheader (ibfd)->e_flags)); | |
2246 | ||
d1bf45aa | 2247 | elf_gp (obfd) = elf_gp (ibfd); |
5b3b9ff6 ILT |
2248 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
2249 | elf_flags_init (obfd) = true; | |
2250 | return true; | |
2251 | } | |
2252 | ||
2253 | /* Merge backend specific data from an object file to the output | |
2254 | object file when linking. */ | |
2255 | ||
bc05732b ILT |
2256 | boolean |
2257 | _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd) | |
5b3b9ff6 ILT |
2258 | bfd *ibfd; |
2259 | bfd *obfd; | |
2260 | { | |
2261 | flagword old_flags; | |
2262 | flagword new_flags; | |
99f1722b | 2263 | boolean ok; |
5b3b9ff6 ILT |
2264 | |
2265 | /* Check if we have the same endianess */ | |
2266 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder | |
2267 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) | |
2268 | { | |
edac2b4c DE |
2269 | const char *msg; |
2270 | ||
2271 | if (bfd_big_endian (ibfd)) | |
2272 | msg = _("%s: compiled for a big endian system and target is little endian"); | |
2273 | else | |
2274 | msg = _("%s: compiled for a little endian system and target is big endian"); | |
2275 | ||
2276 | (*_bfd_error_handler) (msg, bfd_get_filename (ibfd)); | |
5b3b9ff6 ILT |
2277 | |
2278 | bfd_set_error (bfd_error_wrong_format); | |
2279 | return false; | |
2280 | } | |
2281 | ||
fe4ff515 ILT |
2282 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
2283 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
5b3b9ff6 ILT |
2284 | return true; |
2285 | ||
2286 | new_flags = elf_elfheader (ibfd)->e_flags; | |
2287 | elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER; | |
2288 | old_flags = elf_elfheader (obfd)->e_flags; | |
2289 | ||
99f1722b | 2290 | if (! elf_flags_init (obfd)) |
5b3b9ff6 ILT |
2291 | { |
2292 | elf_flags_init (obfd) = true; | |
2293 | elf_elfheader (obfd)->e_flags = new_flags; | |
99f1722b | 2294 | |
fe4ff515 ILT |
2295 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) |
2296 | && bfd_get_arch_info (obfd)->the_default) | |
5b3b9ff6 | 2297 | { |
99f1722b ILT |
2298 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), |
2299 | bfd_get_mach (ibfd))) | |
2300 | return false; | |
5b3b9ff6 ILT |
2301 | } |
2302 | ||
99f1722b ILT |
2303 | return true; |
2304 | } | |
2305 | ||
2306 | /* Check flag compatibility. */ | |
2307 | ||
2308 | new_flags &= ~EF_MIPS_NOREORDER; | |
2309 | old_flags &= ~EF_MIPS_NOREORDER; | |
2310 | ||
2311 | if (new_flags == old_flags) | |
2312 | return true; | |
2313 | ||
2314 | ok = true; | |
2315 | ||
2316 | if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC)) | |
2317 | { | |
2318 | new_flags &= ~EF_MIPS_PIC; | |
2319 | old_flags &= ~EF_MIPS_PIC; | |
2320 | (*_bfd_error_handler) | |
edac2b4c | 2321 | (_("%s: linking PIC files with non-PIC files"), |
99f1722b ILT |
2322 | bfd_get_filename (ibfd)); |
2323 | ok = false; | |
2324 | } | |
2325 | ||
2326 | if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC)) | |
2327 | { | |
2328 | new_flags &= ~EF_MIPS_CPIC; | |
2329 | old_flags &= ~EF_MIPS_CPIC; | |
2330 | (*_bfd_error_handler) | |
edac2b4c | 2331 | (_("%s: linking abicalls files with non-abicalls files"), |
99f1722b ILT |
2332 | bfd_get_filename (ibfd)); |
2333 | ok = false; | |
2334 | } | |
2335 | ||
edac2b4c | 2336 | /* Compare the ISA's. */ |
5e37b2da | 2337 | if ((new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH)) |
edac2b4c | 2338 | != (old_flags & (EF_MIPS_ARCH | EF_MIPS_MACH))) |
99f1722b | 2339 | { |
edac2b4c DE |
2340 | /* If either has no machine specified, just compare the general isa's. */ |
2341 | if ( !(new_flags & EF_MIPS_MACH) || !(old_flags & EF_MIPS_MACH)) | |
2342 | { | |
2343 | int new_isa, old_isa; | |
2344 | ||
2345 | /* Don't warn about mixing -mips1 and -mips2 code, or mixing -mips3 | |
2346 | and -mips4 code. They will normally use the same data sizes and | |
2347 | calling conventions. */ | |
5e37b2da | 2348 | |
edac2b4c DE |
2349 | new_isa = elf_mips_isa (new_flags); |
2350 | old_isa = elf_mips_isa (old_flags); | |
2351 | if ((new_isa == 1 || new_isa == 2) | |
2352 | ? (old_isa != 1 && old_isa != 2) | |
2353 | : (old_isa == 1 || old_isa == 2)) | |
2354 | { | |
2355 | (*_bfd_error_handler) | |
2356 | (_("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)"), | |
2357 | bfd_get_filename (ibfd), new_isa, old_isa); | |
2358 | ok = false; | |
2359 | } | |
2360 | } | |
99f1722b | 2361 | |
edac2b4c | 2362 | else |
5b3b9ff6 | 2363 | { |
5b3b9ff6 | 2364 | (*_bfd_error_handler) |
edac2b4c | 2365 | (_("%s: ISA mismatch (%d) with previous modules (%d)"), |
5e37b2da UD |
2366 | bfd_get_filename (ibfd), |
2367 | elf_mips_mach (new_flags), | |
edac2b4c | 2368 | elf_mips_mach (old_flags)); |
99f1722b | 2369 | ok = false; |
5b3b9ff6 | 2370 | } |
5e37b2da | 2371 | |
edac2b4c DE |
2372 | new_flags &= ~ (EF_MIPS_ARCH | EF_MIPS_MACH); |
2373 | old_flags &= ~ (EF_MIPS_ARCH | EF_MIPS_MACH); | |
99f1722b | 2374 | } |
fe4ff515 | 2375 | |
99f1722b ILT |
2376 | /* Warn about any other mismatches */ |
2377 | if (new_flags != old_flags) | |
2378 | { | |
2379 | (*_bfd_error_handler) | |
edac2b4c | 2380 | (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), |
99f1722b ILT |
2381 | bfd_get_filename (ibfd), (unsigned long) new_flags, |
2382 | (unsigned long) old_flags); | |
2383 | ok = false; | |
2384 | } | |
5b3b9ff6 | 2385 | |
99f1722b ILT |
2386 | if (! ok) |
2387 | { | |
5b3b9ff6 ILT |
2388 | bfd_set_error (bfd_error_bad_value); |
2389 | return false; | |
2390 | } | |
2391 | ||
2392 | return true; | |
2393 | } | |
2394 | \f | |
b3c0fc57 ILT |
2395 | /* Handle a MIPS specific section when reading an object file. This |
2396 | is called when elfcode.h finds a section with an unknown type. | |
d1bf45aa ILT |
2397 | This routine supports both the 32-bit and 64-bit ELF ABI. |
2398 | ||
b3c0fc57 ILT |
2399 | FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure |
2400 | how to. */ | |
2401 | ||
d1bf45aa ILT |
2402 | boolean |
2403 | _bfd_mips_elf_section_from_shdr (abfd, hdr, name) | |
b3c0fc57 | 2404 | bfd *abfd; |
d1bf45aa ILT |
2405 | Elf_Internal_Shdr *hdr; |
2406 | const char *name; | |
b3c0fc57 ILT |
2407 | { |
2408 | /* There ought to be a place to keep ELF backend specific flags, but | |
2409 | at the moment there isn't one. We just keep track of the | |
2410 | sections by their name, instead. Fortunately, the ABI gives | |
2411 | suggested names for all the MIPS specific sections, so we will | |
2412 | probably get away with this. */ | |
2413 | switch (hdr->sh_type) | |
2414 | { | |
2415 | case SHT_MIPS_LIBLIST: | |
1a85826e | 2416 | if (strcmp (name, ".liblist") != 0) |
b3c0fc57 ILT |
2417 | return false; |
2418 | break; | |
6a5848cd ILT |
2419 | case SHT_MIPS_MSYM: |
2420 | if (strcmp (name, ".msym") != 0) | |
2421 | return false; | |
2422 | break; | |
b3c0fc57 ILT |
2423 | case SHT_MIPS_CONFLICT: |
2424 | if (strcmp (name, ".conflict") != 0) | |
2425 | return false; | |
2426 | break; | |
2427 | case SHT_MIPS_GPTAB: | |
2428 | if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) != 0) | |
2429 | return false; | |
2430 | break; | |
2431 | case SHT_MIPS_UCODE: | |
2432 | if (strcmp (name, ".ucode") != 0) | |
2433 | return false; | |
2434 | break; | |
2435 | case SHT_MIPS_DEBUG: | |
2436 | if (strcmp (name, ".mdebug") != 0) | |
2437 | return false; | |
2438 | break; | |
2439 | case SHT_MIPS_REGINFO: | |
2440 | if (strcmp (name, ".reginfo") != 0 | |
2441 | || hdr->sh_size != sizeof (Elf32_External_RegInfo)) | |
2442 | return false; | |
2443 | break; | |
1cfe12f2 ILT |
2444 | case SHT_MIPS_IFACE: |
2445 | if (strcmp (name, ".MIPS.interfaces") != 0) | |
2446 | return false; | |
2447 | break; | |
2448 | case SHT_MIPS_CONTENT: | |
a4e07bb4 | 2449 | if (strncmp (name, ".MIPS.content", sizeof ".MIPS.content" - 1) != 0) |
1cfe12f2 ILT |
2450 | return false; |
2451 | break; | |
6e07e54f | 2452 | case SHT_MIPS_OPTIONS: |
bc05732b ILT |
2453 | if (strcmp (name, ".options") != 0 |
2454 | && strcmp (name, ".MIPS.options") != 0) | |
6e07e54f ILT |
2455 | return false; |
2456 | break; | |
6a5848cd ILT |
2457 | case SHT_MIPS_DWARF: |
2458 | if (strncmp (name, ".debug_", sizeof ".debug_" - 1) != 0) | |
2459 | return false; | |
2460 | break; | |
1cfe12f2 ILT |
2461 | case SHT_MIPS_SYMBOL_LIB: |
2462 | if (strcmp (name, ".MIPS.symlib") != 0) | |
2463 | return false; | |
2464 | break; | |
6a5848cd | 2465 | case SHT_MIPS_EVENTS: |
1cfe12f2 ILT |
2466 | if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) != 0 |
2467 | && strncmp (name, ".MIPS.post_rel", | |
2468 | sizeof ".MIPS.post_rel" - 1) != 0) | |
6a5848cd ILT |
2469 | return false; |
2470 | break; | |
edac2b4c DE |
2471 | /* start-sanitize-sky */ |
2472 | case SHT_DVP_OVERLAY_TABLE: | |
2473 | if (strcmp (name, SHNAME_DVP_OVERLAY_TABLE) !=0) | |
2474 | return false; | |
2475 | break; | |
2476 | case SHT_DVP_OVERLAY: | |
2477 | if (strncmp (name, SHNAME_DVP_OVERLAY_PREFIX, | |
2478 | sizeof (SHNAME_DVP_OVERLAY_PREFIX) - 1) !=0) | |
2479 | return false; | |
2480 | break; | |
2481 | /* end-sanitize-sky */ | |
b3c0fc57 ILT |
2482 | default: |
2483 | return false; | |
2484 | } | |
2485 | ||
497c5434 ILT |
2486 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) |
2487 | return false; | |
b3c0fc57 | 2488 | |
497c5434 ILT |
2489 | if (hdr->sh_type == SHT_MIPS_DEBUG) |
2490 | { | |
d1bf45aa ILT |
2491 | if (! bfd_set_section_flags (abfd, hdr->bfd_section, |
2492 | (bfd_get_section_flags (abfd, | |
2493 | hdr->bfd_section) | |
497c5434 ILT |
2494 | | SEC_DEBUGGING))) |
2495 | return false; | |
2496 | } | |
b3c0fc57 | 2497 | |
d1bf45aa ILT |
2498 | return true; |
2499 | } | |
2500 | ||
2501 | /* Handle a 32-bit MIPS ELF specific section. */ | |
2502 | ||
2503 | static boolean | |
2504 | mips_elf32_section_from_shdr (abfd, hdr, name) | |
2505 | bfd *abfd; | |
2506 | Elf_Internal_Shdr *hdr; | |
2507 | char *name; | |
2508 | { | |
2509 | if (! _bfd_mips_elf_section_from_shdr (abfd, hdr, name)) | |
2510 | return false; | |
2511 | ||
497c5434 | 2512 | /* FIXME: We should record sh_info for a .gptab section. */ |
b3c0fc57 | 2513 | |
497c5434 ILT |
2514 | /* For a .reginfo section, set the gp value in the tdata information |
2515 | from the contents of this section. We need the gp value while | |
d1bf45aa ILT |
2516 | processing relocs, so we just get it now. The .reginfo section |
2517 | is not used in the 64-bit MIPS ELF ABI. */ | |
497c5434 ILT |
2518 | if (hdr->sh_type == SHT_MIPS_REGINFO) |
2519 | { | |
2520 | Elf32_External_RegInfo ext; | |
2521 | Elf32_RegInfo s; | |
b3c0fc57 | 2522 | |
d1bf45aa | 2523 | if (! bfd_get_section_contents (abfd, hdr->bfd_section, (PTR) &ext, |
497c5434 ILT |
2524 | (file_ptr) 0, sizeof ext)) |
2525 | return false; | |
2526 | bfd_mips_elf32_swap_reginfo_in (abfd, &ext, &s); | |
2527 | elf_gp (abfd) = s.ri_gp_value; | |
b3c0fc57 ILT |
2528 | } |
2529 | ||
bc05732b ILT |
2530 | /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and |
2531 | set the gp value based on what we find. We may see both | |
2532 | SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case, | |
2533 | they should agree. */ | |
2534 | if (hdr->sh_type == SHT_MIPS_OPTIONS) | |
2535 | { | |
2536 | bfd_byte *contents, *l, *lend; | |
2537 | ||
2538 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); | |
2539 | if (contents == NULL) | |
2540 | return false; | |
2541 | if (! bfd_get_section_contents (abfd, hdr->bfd_section, contents, | |
2542 | (file_ptr) 0, hdr->sh_size)) | |
2543 | { | |
2544 | free (contents); | |
2545 | return false; | |
2546 | } | |
2547 | l = contents; | |
2548 | lend = contents + hdr->sh_size; | |
2549 | while (l + sizeof (Elf_External_Options) <= lend) | |
2550 | { | |
2551 | Elf_Internal_Options intopt; | |
2552 | ||
2553 | bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l, | |
2554 | &intopt); | |
2555 | if (intopt.kind == ODK_REGINFO) | |
2556 | { | |
2557 | Elf32_RegInfo intreg; | |
2558 | ||
2559 | bfd_mips_elf32_swap_reginfo_in | |
2560 | (abfd, | |
2561 | ((Elf32_External_RegInfo *) | |
2562 | (l + sizeof (Elf_External_Options))), | |
2563 | &intreg); | |
2564 | elf_gp (abfd) = intreg.ri_gp_value; | |
2565 | } | |
2566 | l += intopt.size; | |
2567 | } | |
2568 | free (contents); | |
2569 | } | |
2570 | ||
b3c0fc57 ILT |
2571 | return true; |
2572 | } | |
2573 | ||
2574 | /* Set the correct type for a MIPS ELF section. We do this by the | |
00176555 ILT |
2575 | section name, which is a hack, but ought to work. This routine is |
2576 | used by both the 32-bit and the 64-bit ABI. */ | |
b3c0fc57 | 2577 | |
00176555 ILT |
2578 | boolean |
2579 | _bfd_mips_elf_fake_sections (abfd, hdr, sec) | |
b3c0fc57 ILT |
2580 | bfd *abfd; |
2581 | Elf32_Internal_Shdr *hdr; | |
2582 | asection *sec; | |
2583 | { | |
2584 | register const char *name; | |
2585 | ||
2586 | name = bfd_get_section_name (abfd, sec); | |
2587 | ||
2588 | if (strcmp (name, ".liblist") == 0) | |
2589 | { | |
2590 | hdr->sh_type = SHT_MIPS_LIBLIST; | |
2591 | hdr->sh_info = sec->_raw_size / sizeof (Elf32_Lib); | |
1cfe12f2 | 2592 | /* The sh_link field is set in final_write_processing. */ |
b3c0fc57 | 2593 | } |
6a5848cd ILT |
2594 | else if (strcmp (name, ".msym") == 0) |
2595 | { | |
2596 | hdr->sh_type = SHT_MIPS_MSYM; | |
2597 | hdr->sh_entsize = 8; | |
2598 | /* FIXME: Set the sh_info field. */ | |
2599 | } | |
b3c0fc57 ILT |
2600 | else if (strcmp (name, ".conflict") == 0) |
2601 | hdr->sh_type = SHT_MIPS_CONFLICT; | |
2602 | else if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0) | |
2603 | { | |
2604 | hdr->sh_type = SHT_MIPS_GPTAB; | |
aac6b32f | 2605 | hdr->sh_entsize = sizeof (Elf32_External_gptab); |
00176555 | 2606 | /* The sh_info field is set in final_write_processing. */ |
b3c0fc57 ILT |
2607 | } |
2608 | else if (strcmp (name, ".ucode") == 0) | |
2609 | hdr->sh_type = SHT_MIPS_UCODE; | |
2610 | else if (strcmp (name, ".mdebug") == 0) | |
6e07e54f ILT |
2611 | { |
2612 | hdr->sh_type = SHT_MIPS_DEBUG; | |
5b3b9ff6 ILT |
2613 | /* In a shared object on Irix 5.3, the .mdebug section has an |
2614 | entsize of 0. FIXME: Does this matter? */ | |
2615 | if (SGI_COMPAT (abfd) && (abfd->flags & DYNAMIC) != 0) | |
2616 | hdr->sh_entsize = 0; | |
2617 | else | |
2618 | hdr->sh_entsize = 1; | |
6e07e54f | 2619 | } |
b3c0fc57 ILT |
2620 | else if (strcmp (name, ".reginfo") == 0) |
2621 | { | |
2622 | hdr->sh_type = SHT_MIPS_REGINFO; | |
5b3b9ff6 ILT |
2623 | /* In a shared object on Irix 5.3, the .reginfo section has an |
2624 | entsize of 0x18. FIXME: Does this matter? */ | |
2625 | if (SGI_COMPAT (abfd) && (abfd->flags & DYNAMIC) != 0) | |
2626 | hdr->sh_entsize = sizeof (Elf32_External_RegInfo); | |
2627 | else | |
2628 | hdr->sh_entsize = 1; | |
b3c0fc57 ILT |
2629 | |
2630 | /* Force the section size to the correct value, even if the | |
2631 | linker thinks it is larger. The link routine below will only | |
2632 | write out this much data for .reginfo. */ | |
2633 | hdr->sh_size = sec->_raw_size = sizeof (Elf32_External_RegInfo); | |
2634 | } | |
5b3b9ff6 ILT |
2635 | else if (SGI_COMPAT (abfd) |
2636 | && (strcmp (name, ".hash") == 0 | |
2637 | || strcmp (name, ".dynamic") == 0 | |
2638 | || strcmp (name, ".dynstr") == 0)) | |
2639 | { | |
2640 | hdr->sh_entsize = 0; | |
2641 | hdr->sh_info = SIZEOF_MIPS_DYNSYM_SECNAMES; | |
2642 | } | |
2643 | else if (strcmp (name, ".got") == 0 | |
2644 | || strcmp (name, ".sdata") == 0 | |
2645 | || strcmp (name, ".sbss") == 0 | |
2646 | || strcmp (name, ".lit4") == 0 | |
2647 | || strcmp (name, ".lit8") == 0) | |
2648 | hdr->sh_flags |= SHF_MIPS_GPREL; | |
1cfe12f2 ILT |
2649 | else if (strcmp (name, ".MIPS.interfaces") == 0) |
2650 | { | |
2651 | hdr->sh_type = SHT_MIPS_IFACE; | |
2652 | hdr->sh_flags |= SHF_MIPS_NOSTRIP; | |
2653 | } | |
2654 | else if (strcmp (name, ".MIPS.content") == 0) | |
2655 | { | |
2656 | hdr->sh_type = SHT_MIPS_CONTENT; | |
2657 | /* The sh_info field is set in final_write_processing. */ | |
2658 | } | |
bc05732b ILT |
2659 | else if (strcmp (name, ".options") == 0 |
2660 | || strcmp (name, ".MIPS.options") == 0) | |
6e07e54f ILT |
2661 | { |
2662 | hdr->sh_type = SHT_MIPS_OPTIONS; | |
2663 | hdr->sh_entsize = 1; | |
1cfe12f2 | 2664 | hdr->sh_flags |= SHF_MIPS_NOSTRIP; |
6e07e54f | 2665 | } |
6a5848cd ILT |
2666 | else if (strncmp (name, ".debug_", sizeof ".debug_" - 1) == 0) |
2667 | hdr->sh_type = SHT_MIPS_DWARF; | |
1cfe12f2 ILT |
2668 | else if (strcmp (name, ".MIPS.symlib") == 0) |
2669 | { | |
2670 | hdr->sh_type = SHT_MIPS_SYMBOL_LIB; | |
2671 | /* The sh_link and sh_info fields are set in | |
2672 | final_write_processing. */ | |
2673 | } | |
2674 | else if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0 | |
2675 | || strncmp (name, ".MIPS.post_rel", | |
2676 | sizeof ".MIPS.post_rel" - 1) == 0) | |
2677 | { | |
2678 | hdr->sh_type = SHT_MIPS_EVENTS; | |
2679 | hdr->sh_flags |= SHF_MIPS_NOSTRIP; | |
2680 | /* The sh_link field is set in final_write_processing. */ | |
2681 | } | |
edac2b4c DE |
2682 | /* start-sanitize-sky */ |
2683 | else if (strcmp (name, SHNAME_DVP_OVERLAY_TABLE) == 0) | |
2684 | { | |
2685 | hdr->sh_type = SHT_DVP_OVERLAY_TABLE; | |
303b4cc6 | 2686 | hdr->sh_entsize = sizeof (Elf32_Dvp_External_Overlay); |
edac2b4c DE |
2687 | /* The sh_link field is set in final_write_processing. */ |
2688 | } | |
2689 | else if (strcmp (name, SHNAME_DVP_OVERLAY_STRTAB) == 0) | |
2690 | hdr->sh_type = SHT_STRTAB; | |
2691 | else if (strncmp (name, SHNAME_DVP_OVERLAY_PREFIX, | |
2692 | sizeof (SHNAME_DVP_OVERLAY_PREFIX) - 1) == 0) | |
2693 | hdr->sh_type = SHT_DVP_OVERLAY; | |
2694 | /* end-sanitize-sky */ | |
b3c0fc57 ILT |
2695 | |
2696 | return true; | |
2697 | } | |
2698 | ||
2699 | /* Given a BFD section, try to locate the corresponding ELF section | |
00176555 ILT |
2700 | index. This is used by both the 32-bit and the 64-bit ABI. |
2701 | Actually, it's not clear to me that the 64-bit ABI supports these, | |
2702 | but for non-PIC objects we will certainly want support for at least | |
2703 | the .scommon section. */ | |
b3c0fc57 | 2704 | |
00176555 ILT |
2705 | boolean |
2706 | _bfd_mips_elf_section_from_bfd_section (abfd, hdr, sec, retval) | |
b3c0fc57 ILT |
2707 | bfd *abfd; |
2708 | Elf32_Internal_Shdr *hdr; | |
2709 | asection *sec; | |
2710 | int *retval; | |
2711 | { | |
2712 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
2713 | { | |
2714 | *retval = SHN_MIPS_SCOMMON; | |
2715 | return true; | |
2716 | } | |
82b1edf7 KR |
2717 | if (strcmp (bfd_get_section_name (abfd, sec), ".acommon") == 0) |
2718 | { | |
2719 | *retval = SHN_MIPS_ACOMMON; | |
2720 | return true; | |
2721 | } | |
b3c0fc57 ILT |
2722 | return false; |
2723 | } | |
2724 | ||
bc05732b ILT |
2725 | /* When are writing out the .options or .MIPS.options section, |
2726 | remember the bytes we are writing out, so that we can install the | |
2727 | GP value in the section_processing routine. */ | |
2728 | ||
2729 | boolean | |
2730 | _bfd_mips_elf_set_section_contents (abfd, section, location, offset, count) | |
2731 | bfd *abfd; | |
2732 | sec_ptr section; | |
2733 | PTR location; | |
2734 | file_ptr offset; | |
2735 | bfd_size_type count; | |
2736 | { | |
2737 | if (strcmp (section->name, ".options") == 0 | |
2738 | || strcmp (section->name, ".MIPS.options") == 0) | |
2739 | { | |
2740 | bfd_byte *c; | |
2741 | ||
2742 | if (elf_section_data (section) == NULL) | |
2743 | { | |
2744 | section->used_by_bfd = | |
2745 | (PTR) bfd_zalloc (abfd, sizeof (struct bfd_elf_section_data)); | |
2746 | if (elf_section_data (section) == NULL) | |
2747 | return false; | |
2748 | } | |
2749 | c = (bfd_byte *) elf_section_data (section)->tdata; | |
2750 | if (c == NULL) | |
2751 | { | |
2752 | bfd_size_type size; | |
2753 | ||
2754 | if (section->_cooked_size != 0) | |
2755 | size = section->_cooked_size; | |
2756 | else | |
2757 | size = section->_raw_size; | |
8211c929 | 2758 | c = (bfd_byte *) bfd_zalloc (abfd, size); |
bc05732b ILT |
2759 | if (c == NULL) |
2760 | return false; | |
2761 | elf_section_data (section)->tdata = (PTR) c; | |
2762 | } | |
2763 | ||
2764 | memcpy (c + offset, location, count); | |
2765 | } | |
2766 | ||
2767 | return _bfd_elf_set_section_contents (abfd, section, location, offset, | |
2768 | count); | |
2769 | } | |
2770 | ||
2771 | /* Work over a section just before writing it out. This routine is | |
2772 | used by both the 32-bit and the 64-bit ABI. FIXME: We recognize | |
2773 | sections that need the SHF_MIPS_GPREL flag by name; there has to be | |
2774 | a better way. */ | |
b3c0fc57 | 2775 | |
00176555 ILT |
2776 | boolean |
2777 | _bfd_mips_elf_section_processing (abfd, hdr) | |
b3c0fc57 | 2778 | bfd *abfd; |
00176555 | 2779 | Elf_Internal_Shdr *hdr; |
b3c0fc57 | 2780 | { |
24f13b03 | 2781 | if (hdr->bfd_section != NULL) |
b3c0fc57 | 2782 | { |
24f13b03 | 2783 | const char *name = bfd_get_section_name (abfd, hdr->bfd_section); |
b3c0fc57 ILT |
2784 | |
2785 | if (strcmp (name, ".sdata") == 0) | |
2786 | { | |
2787 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL; | |
2788 | hdr->sh_type = SHT_PROGBITS; | |
2789 | } | |
2790 | else if (strcmp (name, ".sbss") == 0) | |
2791 | { | |
2792 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL; | |
2793 | hdr->sh_type = SHT_NOBITS; | |
2794 | } | |
2795 | else if (strcmp (name, ".lit8") == 0 | |
2796 | || strcmp (name, ".lit4") == 0) | |
2797 | { | |
2798 | hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL; | |
2799 | hdr->sh_type = SHT_PROGBITS; | |
2800 | } | |
5b3b9ff6 ILT |
2801 | else if (strcmp (name, ".compact_rel") == 0) |
2802 | { | |
2803 | hdr->sh_flags = 0; | |
2804 | hdr->sh_type = SHT_PROGBITS; | |
2805 | } | |
2806 | else if (strcmp (name, ".rtproc") == 0) | |
2807 | { | |
2808 | if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0) | |
2809 | { | |
2810 | unsigned int adjust; | |
2811 | ||
2812 | adjust = hdr->sh_size % hdr->sh_addralign; | |
2813 | if (adjust != 0) | |
2814 | hdr->sh_size += hdr->sh_addralign - adjust; | |
2815 | } | |
2816 | } | |
b3c0fc57 ILT |
2817 | } |
2818 | ||
2819 | return true; | |
2820 | } | |
00176555 ILT |
2821 | |
2822 | /* Work over a section just before writing it out. We update the GP | |
bc05732b ILT |
2823 | value in the SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS sections based |
2824 | on the value we are using. */ | |
00176555 ILT |
2825 | |
2826 | static boolean | |
2827 | mips_elf32_section_processing (abfd, hdr) | |
2828 | bfd *abfd; | |
2829 | Elf32_Internal_Shdr *hdr; | |
2830 | { | |
2831 | if (hdr->sh_type == SHT_MIPS_REGINFO) | |
2832 | { | |
2833 | bfd_byte buf[4]; | |
2834 | ||
2835 | BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo)); | |
2836 | BFD_ASSERT (hdr->contents == NULL); | |
2837 | ||
2838 | if (bfd_seek (abfd, | |
2839 | hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4, | |
2840 | SEEK_SET) == -1) | |
2841 | return false; | |
2842 | bfd_h_put_32 (abfd, (bfd_vma) elf_gp (abfd), buf); | |
2843 | if (bfd_write (buf, (bfd_size_type) 1, (bfd_size_type) 4, abfd) != 4) | |
2844 | return false; | |
2845 | } | |
2846 | ||
bc05732b ILT |
2847 | if (hdr->sh_type == SHT_MIPS_OPTIONS |
2848 | && hdr->bfd_section != NULL | |
2849 | && elf_section_data (hdr->bfd_section) != NULL | |
2850 | && elf_section_data (hdr->bfd_section)->tdata != NULL) | |
2851 | { | |
2852 | bfd_byte *contents, *l, *lend; | |
2853 | ||
2854 | /* We stored the section contents in the elf_section_data tdata | |
2855 | field in the set_section_contents routine. We save the | |
2856 | section contents so that we don't have to read them again. | |
2857 | At this point we know that elf_gp is set, so we can look | |
2858 | through the section contents to see if there is an | |
2859 | ODK_REGINFO structure. */ | |
2860 | ||
2861 | contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata; | |
2862 | l = contents; | |
2863 | lend = contents + hdr->sh_size; | |
2864 | while (l + sizeof (Elf_External_Options) <= lend) | |
2865 | { | |
2866 | Elf_Internal_Options intopt; | |
2867 | ||
2868 | bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l, | |
2869 | &intopt); | |
2870 | if (intopt.kind == ODK_REGINFO) | |
2871 | { | |
2872 | bfd_byte buf[4]; | |
2873 | ||
2874 | if (bfd_seek (abfd, | |
2875 | (hdr->sh_offset | |
2876 | + (l - contents) | |
2877 | + sizeof (Elf_External_Options) | |
2878 | + (sizeof (Elf32_External_RegInfo) - 4)), | |
2879 | SEEK_SET) == -1) | |
2880 | return false; | |
2881 | bfd_h_put_32 (abfd, elf_gp (abfd), buf); | |
2882 | if (bfd_write (buf, 1, 4, abfd) != 4) | |
2883 | return false; | |
2884 | } | |
2885 | l += intopt.size; | |
2886 | } | |
2887 | } | |
2888 | ||
00176555 ILT |
2889 | return _bfd_mips_elf_section_processing (abfd, hdr); |
2890 | } | |
b3c0fc57 | 2891 | \f |
aac6b32f ILT |
2892 | /* MIPS ELF uses two common sections. One is the usual one, and the |
2893 | other is for small objects. All the small objects are kept | |
2894 | together, and then referenced via the gp pointer, which yields | |
2895 | faster assembler code. This is what we use for the small common | |
2896 | section. This approach is copied from ecoff.c. */ | |
2897 | static asection mips_elf_scom_section; | |
2898 | static asymbol mips_elf_scom_symbol; | |
2899 | static asymbol *mips_elf_scom_symbol_ptr; | |
2900 | ||
2901 | /* MIPS ELF also uses an acommon section, which represents an | |
ff12f303 | 2902 | allocated common symbol which may be overridden by a |
aac6b32f ILT |
2903 | definition in a shared library. */ |
2904 | static asection mips_elf_acom_section; | |
2905 | static asymbol mips_elf_acom_symbol; | |
2906 | static asymbol *mips_elf_acom_symbol_ptr; | |
2907 | ||
5b3b9ff6 ILT |
2908 | /* The Irix 5 support uses two virtual sections, which represent |
2909 | text/data symbols defined in dynamic objects. */ | |
2910 | static asection mips_elf_text_section; | |
2911 | static asection *mips_elf_text_section_ptr; | |
2912 | static asymbol mips_elf_text_symbol; | |
2913 | static asymbol *mips_elf_text_symbol_ptr; | |
2914 | ||
2915 | static asection mips_elf_data_section; | |
2916 | static asection *mips_elf_data_section_ptr; | |
2917 | static asymbol mips_elf_data_symbol; | |
2918 | static asymbol *mips_elf_data_symbol_ptr; | |
2919 | ||
00176555 ILT |
2920 | /* Handle the special MIPS section numbers that a symbol may use. |
2921 | This is used for both the 32-bit and the 64-bit ABI. */ | |
aac6b32f | 2922 | |
00176555 ILT |
2923 | void |
2924 | _bfd_mips_elf_symbol_processing (abfd, asym) | |
aac6b32f ILT |
2925 | bfd *abfd; |
2926 | asymbol *asym; | |
2927 | { | |
2928 | elf_symbol_type *elfsym; | |
2929 | ||
2930 | elfsym = (elf_symbol_type *) asym; | |
2931 | switch (elfsym->internal_elf_sym.st_shndx) | |
2932 | { | |
2933 | case SHN_MIPS_ACOMMON: | |
2934 | /* This section is used in a dynamically linked executable file. | |
2935 | It is an allocated common section. The dynamic linker can | |
2936 | either resolve these symbols to something in a shared | |
2937 | library, or it can just leave them here. For our purposes, | |
2938 | we can consider these symbols to be in a new section. */ | |
2939 | if (mips_elf_acom_section.name == NULL) | |
2940 | { | |
2941 | /* Initialize the acommon section. */ | |
2942 | mips_elf_acom_section.name = ".acommon"; | |
6ab826bd | 2943 | mips_elf_acom_section.flags = SEC_ALLOC; |
aac6b32f ILT |
2944 | mips_elf_acom_section.output_section = &mips_elf_acom_section; |
2945 | mips_elf_acom_section.symbol = &mips_elf_acom_symbol; | |
2946 | mips_elf_acom_section.symbol_ptr_ptr = &mips_elf_acom_symbol_ptr; | |
2947 | mips_elf_acom_symbol.name = ".acommon"; | |
2948 | mips_elf_acom_symbol.flags = BSF_SECTION_SYM; | |
2949 | mips_elf_acom_symbol.section = &mips_elf_acom_section; | |
2950 | mips_elf_acom_symbol_ptr = &mips_elf_acom_symbol; | |
2951 | } | |
2952 | asym->section = &mips_elf_acom_section; | |
2953 | break; | |
2954 | ||
2955 | case SHN_COMMON: | |
2956 | /* Common symbols less than the GP size are automatically | |
2957 | treated as SHN_MIPS_SCOMMON symbols. */ | |
2958 | if (asym->value > elf_gp_size (abfd)) | |
2959 | break; | |
2960 | /* Fall through. */ | |
2961 | case SHN_MIPS_SCOMMON: | |
2962 | if (mips_elf_scom_section.name == NULL) | |
2963 | { | |
2964 | /* Initialize the small common section. */ | |
2965 | mips_elf_scom_section.name = ".scommon"; | |
2966 | mips_elf_scom_section.flags = SEC_IS_COMMON; | |
2967 | mips_elf_scom_section.output_section = &mips_elf_scom_section; | |
2968 | mips_elf_scom_section.symbol = &mips_elf_scom_symbol; | |
2969 | mips_elf_scom_section.symbol_ptr_ptr = &mips_elf_scom_symbol_ptr; | |
2970 | mips_elf_scom_symbol.name = ".scommon"; | |
2971 | mips_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
2972 | mips_elf_scom_symbol.section = &mips_elf_scom_section; | |
2973 | mips_elf_scom_symbol_ptr = &mips_elf_scom_symbol; | |
2974 | } | |
2975 | asym->section = &mips_elf_scom_section; | |
2976 | asym->value = elfsym->internal_elf_sym.st_size; | |
2977 | break; | |
2978 | ||
2979 | case SHN_MIPS_SUNDEFINED: | |
24f13b03 | 2980 | asym->section = bfd_und_section_ptr; |
aac6b32f | 2981 | break; |
5b3b9ff6 ILT |
2982 | |
2983 | #if 0 /* for SGI_COMPAT */ | |
2984 | case SHN_MIPS_TEXT: | |
2985 | asym->section = mips_elf_text_section_ptr; | |
2986 | break; | |
2987 | ||
2988 | case SHN_MIPS_DATA: | |
2989 | asym->section = mips_elf_data_section_ptr; | |
2990 | break; | |
2991 | #endif | |
2992 | } | |
2993 | } | |
2994 | \f | |
2995 | /* When creating an Irix 5 executable, we need REGINFO and RTPROC | |
2996 | segments. */ | |
2997 | ||
2998 | static int | |
2999 | mips_elf_additional_program_headers (abfd) | |
3000 | bfd *abfd; | |
3001 | { | |
3002 | asection *s; | |
3003 | int ret; | |
3004 | ||
3005 | ret = 0; | |
3006 | ||
3007 | if (! SGI_COMPAT (abfd)) | |
3008 | return ret; | |
3009 | ||
3010 | s = bfd_get_section_by_name (abfd, ".reginfo"); | |
3011 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3012 | { | |
3013 | /* We need a PT_MIPS_REGINFO segment. */ | |
3014 | ++ret; | |
3015 | } | |
3016 | ||
53787b23 | 3017 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL |
5b3b9ff6 ILT |
3018 | && bfd_get_section_by_name (abfd, ".mdebug") != NULL) |
3019 | { | |
3020 | /* We need a PT_MIPS_RTPROC segment. */ | |
3021 | ++ret; | |
3022 | } | |
3023 | ||
3024 | return ret; | |
3025 | } | |
3026 | ||
3027 | /* Modify the segment map for an Irix 5 executable. */ | |
3028 | ||
3029 | static boolean | |
3030 | mips_elf_modify_segment_map (abfd) | |
3031 | bfd *abfd; | |
3032 | { | |
3033 | asection *s; | |
3034 | struct elf_segment_map *m, **pm; | |
3035 | ||
3036 | if (! SGI_COMPAT (abfd)) | |
3037 | return true; | |
3038 | ||
3039 | /* If there is a .reginfo section, we need a PT_MIPS_REGINFO | |
3040 | segment. */ | |
3041 | s = bfd_get_section_by_name (abfd, ".reginfo"); | |
3042 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3043 | { | |
3044 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
3045 | if (m->p_type == PT_MIPS_REGINFO) | |
3046 | break; | |
3047 | if (m == NULL) | |
3048 | { | |
3049 | m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m); | |
3050 | if (m == NULL) | |
3051 | return false; | |
3052 | ||
3053 | m->p_type = PT_MIPS_REGINFO; | |
3054 | m->count = 1; | |
3055 | m->sections[0] = s; | |
3056 | ||
3057 | /* We want to put it after the PHDR and INTERP segments. */ | |
3058 | pm = &elf_tdata (abfd)->segment_map; | |
3059 | while (*pm != NULL | |
3060 | && ((*pm)->p_type == PT_PHDR | |
3061 | || (*pm)->p_type == PT_INTERP)) | |
3062 | pm = &(*pm)->next; | |
3063 | ||
3064 | m->next = *pm; | |
3065 | *pm = m; | |
3066 | } | |
3067 | } | |
ff12f303 | 3068 | |
5b3b9ff6 ILT |
3069 | /* If there are .dynamic and .mdebug sections, we make a room for |
3070 | the RTPROC header. FIXME: Rewrite without section names. */ | |
3071 | if (bfd_get_section_by_name (abfd, ".interp") == NULL | |
3072 | && bfd_get_section_by_name (abfd, ".dynamic") != NULL | |
3073 | && bfd_get_section_by_name (abfd, ".mdebug") != NULL) | |
3074 | { | |
3075 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) | |
3076 | if (m->p_type == PT_MIPS_RTPROC) | |
3077 | break; | |
3078 | if (m == NULL) | |
3079 | { | |
3080 | m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m); | |
3081 | if (m == NULL) | |
3082 | return false; | |
3083 | ||
3084 | m->p_type = PT_MIPS_RTPROC; | |
3085 | ||
3086 | s = bfd_get_section_by_name (abfd, ".rtproc"); | |
3087 | if (s == NULL) | |
3088 | { | |
3089 | m->count = 0; | |
3090 | m->p_flags = 0; | |
3091 | m->p_flags_valid = 1; | |
3092 | } | |
3093 | else | |
3094 | { | |
3095 | m->count = 1; | |
3096 | m->sections[0] = s; | |
3097 | } | |
3098 | ||
3099 | /* We want to put it after the DYNAMIC segment. */ | |
3100 | pm = &elf_tdata (abfd)->segment_map; | |
3101 | while (*pm != NULL && (*pm)->p_type != PT_DYNAMIC) | |
3102 | pm = &(*pm)->next; | |
3103 | if (*pm != NULL) | |
3104 | pm = &(*pm)->next; | |
3105 | ||
3106 | m->next = *pm; | |
3107 | *pm = m; | |
3108 | } | |
3109 | } | |
3110 | ||
3111 | /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic, .dynstr, | |
3112 | .dynsym, and .hash sections, and everything in between. */ | |
3113 | for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next) | |
3114 | if ((*pm)->p_type == PT_DYNAMIC) | |
3115 | break; | |
3116 | m = *pm; | |
3117 | if (m != NULL | |
3118 | && m->count == 1 | |
3119 | && strcmp (m->sections[0]->name, ".dynamic") == 0) | |
3120 | { | |
3121 | static const char *sec_names[] = | |
3122 | { ".dynamic", ".dynstr", ".dynsym", ".hash" }; | |
3123 | bfd_vma low, high; | |
3124 | unsigned int i, c; | |
3125 | struct elf_segment_map *n; | |
3126 | ||
3127 | low = 0xffffffff; | |
3128 | high = 0; | |
3129 | for (i = 0; i < sizeof sec_names / sizeof sec_names[0]; i++) | |
3130 | { | |
3131 | s = bfd_get_section_by_name (abfd, sec_names[i]); | |
3132 | if (s != NULL && (s->flags & SEC_LOAD) != 0) | |
3133 | { | |
3134 | bfd_size_type sz; | |
3135 | ||
3136 | if (low > s->vma) | |
3137 | low = s->vma; | |
3138 | sz = s->_cooked_size; | |
3139 | if (sz == 0) | |
3140 | sz = s->_raw_size; | |
3141 | if (high < s->vma + sz) | |
3142 | high = s->vma + sz; | |
3143 | } | |
3144 | } | |
3145 | ||
3146 | c = 0; | |
3147 | for (s = abfd->sections; s != NULL; s = s->next) | |
3148 | if ((s->flags & SEC_LOAD) != 0 | |
3149 | && s->vma >= low | |
3150 | && ((s->vma | |
3151 | + (s->_cooked_size != 0 ? s->_cooked_size : s->_raw_size)) | |
3152 | <= high)) | |
3153 | ++c; | |
3154 | ||
3155 | n = ((struct elf_segment_map *) | |
3156 | bfd_zalloc (abfd, sizeof *n + (c - 1) * sizeof (asection *))); | |
3157 | if (n == NULL) | |
3158 | return false; | |
3159 | *n = *m; | |
3160 | n->count = c; | |
3161 | ||
3162 | i = 0; | |
3163 | for (s = abfd->sections; s != NULL; s = s->next) | |
3164 | { | |
3165 | if ((s->flags & SEC_LOAD) != 0 | |
3166 | && s->vma >= low | |
3167 | && ((s->vma | |
3168 | + (s->_cooked_size != 0 ? s->_cooked_size : s->_raw_size)) | |
3169 | <= high)) | |
3170 | { | |
3171 | n->sections[i] = s; | |
3172 | ++i; | |
3173 | } | |
3174 | } | |
3175 | ||
3176 | *pm = n; | |
aac6b32f | 3177 | } |
5b3b9ff6 ILT |
3178 | |
3179 | return true; | |
3180 | } | |
3181 | \f | |
3182 | /* The structure of the runtime procedure descriptor created by the | |
3183 | loader for use by the static exception system. */ | |
3184 | ||
3185 | typedef struct runtime_pdr { | |
3186 | bfd_vma adr; /* memory address of start of procedure */ | |
3187 | long regmask; /* save register mask */ | |
3188 | long regoffset; /* save register offset */ | |
3189 | long fregmask; /* save floating point register mask */ | |
3190 | long fregoffset; /* save floating point register offset */ | |
3191 | long frameoffset; /* frame size */ | |
3192 | short framereg; /* frame pointer register */ | |
3193 | short pcreg; /* offset or reg of return pc */ | |
3194 | long irpss; /* index into the runtime string table */ | |
3195 | long reserved; | |
3196 | struct exception_info *exception_info;/* pointer to exception array */ | |
3197 | } RPDR, *pRPDR; | |
3198 | #define cbRPDR sizeof(RPDR) | |
3199 | #define rpdNil ((pRPDR) 0) | |
3200 | ||
3201 | /* Swap RPDR (runtime procedure table entry) for output. */ | |
3202 | ||
3203 | static void ecoff_swap_rpdr_out | |
3204 | PARAMS ((bfd *, const RPDR *, struct rpdr_ext *)); | |
3205 | ||
3206 | static void | |
3207 | ecoff_swap_rpdr_out (abfd, in, ex) | |
3208 | bfd *abfd; | |
3209 | const RPDR *in; | |
3210 | struct rpdr_ext *ex; | |
3211 | { | |
3212 | /* ecoff_put_off was defined in ecoffswap.h. */ | |
3213 | ecoff_put_off (abfd, in->adr, (bfd_byte *) ex->p_adr); | |
3214 | bfd_h_put_32 (abfd, in->regmask, (bfd_byte *) ex->p_regmask); | |
3215 | bfd_h_put_32 (abfd, in->regoffset, (bfd_byte *) ex->p_regoffset); | |
3216 | bfd_h_put_32 (abfd, in->fregmask, (bfd_byte *) ex->p_fregmask); | |
3217 | bfd_h_put_32 (abfd, in->fregoffset, (bfd_byte *) ex->p_fregoffset); | |
3218 | bfd_h_put_32 (abfd, in->frameoffset, (bfd_byte *) ex->p_frameoffset); | |
3219 | ||
3220 | bfd_h_put_16 (abfd, in->framereg, (bfd_byte *) ex->p_framereg); | |
3221 | bfd_h_put_16 (abfd, in->pcreg, (bfd_byte *) ex->p_pcreg); | |
3222 | ||
3223 | bfd_h_put_32 (abfd, in->irpss, (bfd_byte *) ex->p_irpss); | |
3224 | #if 0 /* FIXME */ | |
3225 | ecoff_put_off (abfd, in->exception_info, (bfd_byte *) ex->p_exception_info); | |
3226 | #endif | |
aac6b32f ILT |
3227 | } |
3228 | \f | |
6e07e54f ILT |
3229 | /* Read ECOFF debugging information from a .mdebug section into a |
3230 | ecoff_debug_info structure. */ | |
b3c0fc57 | 3231 | |
00176555 ILT |
3232 | boolean |
3233 | _bfd_mips_elf_read_ecoff_info (abfd, section, debug) | |
b3c0fc57 | 3234 | bfd *abfd; |
6e07e54f ILT |
3235 | asection *section; |
3236 | struct ecoff_debug_info *debug; | |
b3c0fc57 | 3237 | { |
6e07e54f ILT |
3238 | HDRR *symhdr; |
3239 | const struct ecoff_debug_swap *swap; | |
a3a33af3 | 3240 | char *ext_hdr = NULL; |
6e07e54f ILT |
3241 | |
3242 | swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; | |
3243 | ||
5b3b9ff6 | 3244 | ext_hdr = (char *) bfd_malloc ((size_t) swap->external_hdr_size); |
a3a33af3 | 3245 | if (ext_hdr == NULL && swap->external_hdr_size != 0) |
5b3b9ff6 | 3246 | goto error_return; |
6e07e54f ILT |
3247 | |
3248 | if (bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0, | |
3249 | swap->external_hdr_size) | |
3250 | == false) | |
a3a33af3 | 3251 | goto error_return; |
6e07e54f ILT |
3252 | |
3253 | symhdr = &debug->symbolic_header; | |
3254 | (*swap->swap_hdr_in) (abfd, ext_hdr, symhdr); | |
3255 | ||
3256 | /* The symbolic header contains absolute file offsets and sizes to | |
3257 | read. */ | |
3258 | #define READ(ptr, offset, count, size, type) \ | |
3259 | if (symhdr->count == 0) \ | |
3260 | debug->ptr = NULL; \ | |
3261 | else \ | |
3262 | { \ | |
5b3b9ff6 | 3263 | debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \ |
6e07e54f | 3264 | if (debug->ptr == NULL) \ |
5b3b9ff6 | 3265 | goto error_return; \ |
6e07e54f ILT |
3266 | if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \ |
3267 | || (bfd_read (debug->ptr, size, symhdr->count, \ | |
3268 | abfd) != size * symhdr->count)) \ | |
a3a33af3 | 3269 | goto error_return; \ |
6e07e54f ILT |
3270 | } |
3271 | ||
3272 | READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *); | |
3273 | READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR); | |
3274 | READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR); | |
3275 | READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR); | |
3276 | READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR); | |
3277 | READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), | |
3278 | union aux_ext *); | |
3279 | READ (ss, cbSsOffset, issMax, sizeof (char), char *); | |
3280 | READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *); | |
3281 | READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR); | |
3282 | READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR); | |
aac6b32f ILT |
3283 | READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR); |
3284 | #undef READ | |
9783e04a DM |
3285 | |
3286 | debug->fdr = NULL; | |
a3a33af3 | 3287 | debug->adjust = NULL; |
6e07e54f ILT |
3288 | |
3289 | return true; | |
a3a33af3 ILT |
3290 | |
3291 | error_return: | |
3292 | if (ext_hdr != NULL) | |
3293 | free (ext_hdr); | |
a3a33af3 ILT |
3294 | if (debug->line != NULL) |
3295 | free (debug->line); | |
3296 | if (debug->external_dnr != NULL) | |
3297 | free (debug->external_dnr); | |
3298 | if (debug->external_pdr != NULL) | |
3299 | free (debug->external_pdr); | |
3300 | if (debug->external_sym != NULL) | |
3301 | free (debug->external_sym); | |
3302 | if (debug->external_opt != NULL) | |
3303 | free (debug->external_opt); | |
3304 | if (debug->external_aux != NULL) | |
3305 | free (debug->external_aux); | |
3306 | if (debug->ss != NULL) | |
3307 | free (debug->ss); | |
3308 | if (debug->ssext != NULL) | |
3309 | free (debug->ssext); | |
3310 | if (debug->external_fdr != NULL) | |
3311 | free (debug->external_fdr); | |
3312 | if (debug->external_rfd != NULL) | |
3313 | free (debug->external_rfd); | |
aac6b32f ILT |
3314 | if (debug->external_ext != NULL) |
3315 | free (debug->external_ext); | |
a3a33af3 | 3316 | return false; |
6e07e54f | 3317 | } |
a16fcab3 | 3318 | \f |
a2546fce ILT |
3319 | /* MIPS ELF local labels start with '$', not 'L'. */ |
3320 | ||
3321 | /*ARGSUSED*/ | |
3322 | static boolean | |
7d996a75 | 3323 | mips_elf_is_local_label_name (abfd, name) |
a2546fce | 3324 | bfd *abfd; |
7d996a75 | 3325 | const char *name; |
a2546fce | 3326 | { |
ab66cc8d ILT |
3327 | if (name[0] == '$') |
3328 | return true; | |
3329 | ||
3330 | /* On Irix 6, the labels go back to starting with '.', so we accept | |
3331 | the generic ELF local label syntax as well. */ | |
3332 | return _bfd_elf_is_local_label_name (abfd, name); | |
a2546fce ILT |
3333 | } |
3334 | ||
a16fcab3 KR |
3335 | /* MIPS ELF uses a special find_nearest_line routine in order the |
3336 | handle the ECOFF debugging information. */ | |
3337 | ||
3338 | struct mips_elf_find_line | |
3339 | { | |
3340 | struct ecoff_debug_info d; | |
3341 | struct ecoff_find_line i; | |
3342 | }; | |
6e07e54f | 3343 | |
bc05732b ILT |
3344 | boolean |
3345 | _bfd_mips_elf_find_nearest_line (abfd, section, symbols, offset, filename_ptr, | |
3346 | functionname_ptr, line_ptr) | |
a16fcab3 KR |
3347 | bfd *abfd; |
3348 | asection *section; | |
3349 | asymbol **symbols; | |
3350 | bfd_vma offset; | |
3351 | const char **filename_ptr; | |
3352 | const char **functionname_ptr; | |
3353 | unsigned int *line_ptr; | |
3354 | { | |
3355 | asection *msec; | |
3356 | ||
3134a2bd | 3357 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, |
5e37b2da | 3358 | filename_ptr, functionname_ptr, |
3134a2bd DE |
3359 | line_ptr)) |
3360 | return true; | |
3361 | ||
a16fcab3 KR |
3362 | msec = bfd_get_section_by_name (abfd, ".mdebug"); |
3363 | if (msec != NULL) | |
3364 | { | |
6ab826bd | 3365 | flagword origflags; |
a16fcab3 KR |
3366 | struct mips_elf_find_line *fi; |
3367 | const struct ecoff_debug_swap * const swap = | |
3368 | get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; | |
3369 | ||
6ab826bd FF |
3370 | /* If we are called during a link, mips_elf_final_link may have |
3371 | cleared the SEC_HAS_CONTENTS field. We force it back on here | |
3372 | if appropriate (which it normally will be). */ | |
3373 | origflags = msec->flags; | |
3374 | if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS) | |
3375 | msec->flags |= SEC_HAS_CONTENTS; | |
3376 | ||
a16fcab3 KR |
3377 | fi = elf_tdata (abfd)->find_line_info; |
3378 | if (fi == NULL) | |
3379 | { | |
3380 | bfd_size_type external_fdr_size; | |
3381 | char *fraw_src; | |
3382 | char *fraw_end; | |
3383 | struct fdr *fdr_ptr; | |
3384 | ||
3385 | fi = ((struct mips_elf_find_line *) | |
abec70b9 | 3386 | bfd_zalloc (abfd, sizeof (struct mips_elf_find_line))); |
a16fcab3 KR |
3387 | if (fi == NULL) |
3388 | { | |
6ab826bd | 3389 | msec->flags = origflags; |
a16fcab3 KR |
3390 | return false; |
3391 | } | |
3392 | ||
00176555 | 3393 | if (! _bfd_mips_elf_read_ecoff_info (abfd, msec, &fi->d)) |
6ab826bd FF |
3394 | { |
3395 | msec->flags = origflags; | |
3396 | return false; | |
3397 | } | |
a16fcab3 KR |
3398 | |
3399 | /* Swap in the FDR information. */ | |
3400 | fi->d.fdr = ((struct fdr *) | |
3401 | bfd_alloc (abfd, | |
3402 | (fi->d.symbolic_header.ifdMax * | |
3403 | sizeof (struct fdr)))); | |
3404 | if (fi->d.fdr == NULL) | |
3405 | { | |
6ab826bd | 3406 | msec->flags = origflags; |
a16fcab3 KR |
3407 | return false; |
3408 | } | |
3409 | external_fdr_size = swap->external_fdr_size; | |
3410 | fdr_ptr = fi->d.fdr; | |
3411 | fraw_src = (char *) fi->d.external_fdr; | |
3412 | fraw_end = (fraw_src | |
3413 | + fi->d.symbolic_header.ifdMax * external_fdr_size); | |
3414 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) | |
3415 | (*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); | |
3416 | ||
3417 | elf_tdata (abfd)->find_line_info = fi; | |
3418 | ||
3419 | /* Note that we don't bother to ever free this information. | |
3420 | find_nearest_line is either called all the time, as in | |
3421 | objdump -l, so the information should be saved, or it is | |
3422 | rarely called, as in ld error messages, so the memory | |
3423 | wasted is unimportant. Still, it would probably be a | |
3424 | good idea for free_cached_info to throw it away. */ | |
3425 | } | |
3426 | ||
3427 | if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap, | |
3428 | &fi->i, filename_ptr, functionname_ptr, | |
3429 | line_ptr)) | |
6ab826bd FF |
3430 | { |
3431 | msec->flags = origflags; | |
3432 | return true; | |
3433 | } | |
3434 | ||
3435 | msec->flags = origflags; | |
a16fcab3 KR |
3436 | } |
3437 | ||
3438 | /* Fall back on the generic ELF find_nearest_line routine. */ | |
3439 | ||
ede4eed4 KR |
3440 | return _bfd_elf_find_nearest_line (abfd, section, symbols, offset, |
3441 | filename_ptr, functionname_ptr, | |
3442 | line_ptr); | |
a16fcab3 KR |
3443 | } |
3444 | \f | |
e900e695 ILT |
3445 | /* The mips16 compiler uses a couple of special sections to handle |
3446 | floating point arguments. | |
3447 | ||
3448 | Section names that look like .mips16.fn.FNNAME contain stubs that | |
3449 | copy floating point arguments from the fp regs to the gp regs and | |
3450 | then jump to FNNAME. If any 32 bit function calls FNNAME, the | |
3451 | call should be redirected to the stub instead. If no 32 bit | |
3452 | function calls FNNAME, the stub should be discarded. We need to | |
3453 | consider any reference to the function, not just a call, because | |
3454 | if the address of the function is taken we will need the stub, | |
3455 | since the address might be passed to a 32 bit function. | |
3456 | ||
3457 | Section names that look like .mips16.call.FNNAME contain stubs | |
3458 | that copy floating point arguments from the gp regs to the fp | |
3459 | regs and then jump to FNNAME. If FNNAME is a 32 bit function, | |
3460 | then any 16 bit function that calls FNNAME should be redirected | |
3461 | to the stub instead. If FNNAME is not a 32 bit function, the | |
3462 | stub should be discarded. | |
3463 | ||
3464 | .mips16.call.fp.FNNAME sections are similar, but contain stubs | |
3465 | which call FNNAME and then copy the return value from the fp regs | |
3466 | to the gp regs. These stubs store the return value in $18 while | |
3467 | calling FNNAME; any function which might call one of these stubs | |
3468 | must arrange to save $18 around the call. (This case is not | |
3469 | needed for 32 bit functions that call 16 bit functions, because | |
3470 | 16 bit functions always return floating point values in both | |
3471 | $f0/$f1 and $2/$3.) | |
3472 | ||
3473 | Note that in all cases FNNAME might be defined statically. | |
3474 | Therefore, FNNAME is not used literally. Instead, the relocation | |
3475 | information will indicate which symbol the section is for. | |
3476 | ||
3477 | We record any stubs that we find in the symbol table. */ | |
3478 | ||
3479 | #define FN_STUB ".mips16.fn." | |
3480 | #define CALL_STUB ".mips16.call." | |
3481 | #define CALL_FP_STUB ".mips16.call.fp." | |
3482 | ||
aac6b32f ILT |
3483 | /* The MIPS ELF linker needs additional information for each symbol in |
3484 | the global hash table. */ | |
3485 | ||
3486 | struct mips_elf_link_hash_entry | |
3487 | { | |
3488 | struct elf_link_hash_entry root; | |
6e07e54f | 3489 | |
aac6b32f ILT |
3490 | /* External symbol information. */ |
3491 | EXTR esym; | |
abec70b9 ILT |
3492 | |
3493 | /* Number of MIPS_32 or MIPS_REL32 relocs against this symbol. */ | |
3494 | unsigned int mips_32_relocs; | |
e900e695 ILT |
3495 | |
3496 | /* If there is a stub that 32 bit functions should use to call this | |
3497 | 16 bit function, this points to the section containing the stub. */ | |
3498 | asection *fn_stub; | |
3499 | ||
3500 | /* Whether we need the fn_stub; this is set if this symbol appears | |
3501 | in any relocs other than a 16 bit call. */ | |
3502 | boolean need_fn_stub; | |
3503 | ||
3504 | /* If there is a stub that 16 bit functions should use to call this | |
3505 | 32 bit function, this points to the section containing the stub. */ | |
3506 | asection *call_stub; | |
3507 | ||
3508 | /* This is like the call_stub field, but it is used if the function | |
3509 | being called returns a floating point value. */ | |
3510 | asection *call_fp_stub; | |
aac6b32f ILT |
3511 | }; |
3512 | ||
3513 | /* MIPS ELF linker hash table. */ | |
3514 | ||
3515 | struct mips_elf_link_hash_table | |
3516 | { | |
3517 | struct elf_link_hash_table root; | |
5b3b9ff6 ILT |
3518 | /* String section indices for the dynamic section symbols. */ |
3519 | bfd_size_type dynsym_sec_strindex[SIZEOF_MIPS_DYNSYM_SECNAMES]; | |
3520 | /* The number of .rtproc entries. */ | |
3521 | bfd_size_type procedure_count; | |
53787b23 ILT |
3522 | /* The size of the .compact_rel section (if SGI_COMPAT). */ |
3523 | bfd_size_type compact_rel_size; | |
eb52b9dc ILT |
3524 | /* This flag indicates that the value of DT_MIPS_RLD_MAP dynamic |
3525 | entry is set to the address of __rld_obj_head as in Irix 5. */ | |
3526 | boolean use_rld_obj_head; | |
3527 | /* This is the value of the __rld_map or __rld_obj_head symbol. */ | |
3528 | bfd_vma rld_value; | |
e900e695 ILT |
3529 | /* This is set if we see any mips16 stub sections. */ |
3530 | boolean mips16_stubs_seen; | |
aac6b32f ILT |
3531 | }; |
3532 | ||
3533 | /* Look up an entry in a MIPS ELF linker hash table. */ | |
3534 | ||
3535 | #define mips_elf_link_hash_lookup(table, string, create, copy, follow) \ | |
3536 | ((struct mips_elf_link_hash_entry *) \ | |
3537 | elf_link_hash_lookup (&(table)->root, (string), (create), \ | |
3538 | (copy), (follow))) | |
3539 | ||
3540 | /* Traverse a MIPS ELF linker hash table. */ | |
3541 | ||
3542 | #define mips_elf_link_hash_traverse(table, func, info) \ | |
3543 | (elf_link_hash_traverse \ | |
3544 | (&(table)->root, \ | |
3545 | (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \ | |
3546 | (info))) | |
3547 | ||
3548 | /* Get the MIPS ELF linker hash table from a link_info structure. */ | |
3549 | ||
3550 | #define mips_elf_hash_table(p) \ | |
3551 | ((struct mips_elf_link_hash_table *) ((p)->hash)) | |
3552 | ||
3553 | static boolean mips_elf_output_extsym | |
3554 | PARAMS ((struct mips_elf_link_hash_entry *, PTR)); | |
3555 | ||
3556 | /* Create an entry in a MIPS ELF linker hash table. */ | |
3557 | ||
3558 | static struct bfd_hash_entry * | |
3559 | mips_elf_link_hash_newfunc (entry, table, string) | |
3560 | struct bfd_hash_entry *entry; | |
3561 | struct bfd_hash_table *table; | |
3562 | const char *string; | |
3563 | { | |
3564 | struct mips_elf_link_hash_entry *ret = | |
3565 | (struct mips_elf_link_hash_entry *) entry; | |
3566 | ||
3567 | /* Allocate the structure if it has not already been allocated by a | |
3568 | subclass. */ | |
3569 | if (ret == (struct mips_elf_link_hash_entry *) NULL) | |
3570 | ret = ((struct mips_elf_link_hash_entry *) | |
3571 | bfd_hash_allocate (table, | |
3572 | sizeof (struct mips_elf_link_hash_entry))); | |
3573 | if (ret == (struct mips_elf_link_hash_entry *) NULL) | |
a9713b91 | 3574 | return (struct bfd_hash_entry *) ret; |
aac6b32f ILT |
3575 | |
3576 | /* Call the allocation method of the superclass. */ | |
3577 | ret = ((struct mips_elf_link_hash_entry *) | |
3578 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
3579 | table, string)); | |
3580 | if (ret != (struct mips_elf_link_hash_entry *) NULL) | |
3581 | { | |
3582 | /* Set local fields. */ | |
3583 | memset (&ret->esym, 0, sizeof (EXTR)); | |
3584 | /* We use -2 as a marker to indicate that the information has | |
3585 | not been set. -1 means there is no associated ifd. */ | |
3586 | ret->esym.ifd = -2; | |
abec70b9 | 3587 | ret->mips_32_relocs = 0; |
e900e695 ILT |
3588 | ret->fn_stub = NULL; |
3589 | ret->need_fn_stub = false; | |
3590 | ret->call_stub = NULL; | |
3591 | ret->call_fp_stub = NULL; | |
aac6b32f ILT |
3592 | } |
3593 | ||
3594 | return (struct bfd_hash_entry *) ret; | |
3595 | } | |
3596 | ||
3597 | /* Create a MIPS ELF linker hash table. */ | |
3598 | ||
3599 | static struct bfd_link_hash_table * | |
3600 | mips_elf_link_hash_table_create (abfd) | |
3601 | bfd *abfd; | |
3602 | { | |
3603 | struct mips_elf_link_hash_table *ret; | |
5b3b9ff6 | 3604 | unsigned int i; |
aac6b32f ILT |
3605 | |
3606 | ret = ((struct mips_elf_link_hash_table *) | |
3607 | bfd_alloc (abfd, sizeof (struct mips_elf_link_hash_table))); | |
3608 | if (ret == (struct mips_elf_link_hash_table *) NULL) | |
a9713b91 | 3609 | return NULL; |
aac6b32f ILT |
3610 | |
3611 | if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, | |
3612 | mips_elf_link_hash_newfunc)) | |
3613 | { | |
3614 | bfd_release (abfd, ret); | |
3615 | return NULL; | |
3616 | } | |
3617 | ||
5b3b9ff6 ILT |
3618 | for (i = 0; i < SIZEOF_MIPS_DYNSYM_SECNAMES; i++) |
3619 | ret->dynsym_sec_strindex[i] = (bfd_size_type) -1; | |
3620 | ret->procedure_count = 0; | |
53787b23 | 3621 | ret->compact_rel_size = 0; |
eb52b9dc ILT |
3622 | ret->use_rld_obj_head = false; |
3623 | ret->rld_value = 0; | |
e900e695 | 3624 | ret->mips16_stubs_seen = false; |
5b3b9ff6 | 3625 | |
aac6b32f ILT |
3626 | return &ret->root.root; |
3627 | } | |
3628 | ||
3629 | /* Hook called by the linker routine which adds symbols from an object | |
3630 | file. We must handle the special MIPS section numbers here. */ | |
3631 | ||
3632 | /*ARGSUSED*/ | |
6e07e54f | 3633 | static boolean |
aac6b32f ILT |
3634 | mips_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
3635 | bfd *abfd; | |
3636 | struct bfd_link_info *info; | |
3637 | const Elf_Internal_Sym *sym; | |
3638 | const char **namep; | |
3639 | flagword *flagsp; | |
3640 | asection **secp; | |
3641 | bfd_vma *valp; | |
3642 | { | |
53787b23 ILT |
3643 | if (SGI_COMPAT (abfd) |
3644 | && (abfd->flags & DYNAMIC) != 0 | |
3645 | && strcmp (*namep, "_rld_new_interface") == 0) | |
3646 | { | |
3647 | /* Skip Irix 5 rld entry name. */ | |
3648 | *namep = NULL; | |
3649 | return true; | |
3650 | } | |
3651 | ||
aac6b32f ILT |
3652 | switch (sym->st_shndx) |
3653 | { | |
3654 | case SHN_COMMON: | |
3655 | /* Common symbols less than the GP size are automatically | |
3656 | treated as SHN_MIPS_SCOMMON symbols. */ | |
3657 | if (sym->st_size > elf_gp_size (abfd)) | |
3658 | break; | |
3659 | /* Fall through. */ | |
3660 | case SHN_MIPS_SCOMMON: | |
3661 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
3662 | (*secp)->flags |= SEC_IS_COMMON; | |
3663 | *valp = sym->st_size; | |
3664 | break; | |
3665 | ||
5b3b9ff6 ILT |
3666 | case SHN_MIPS_TEXT: |
3667 | /* This section is used in a shared object. */ | |
3668 | if (mips_elf_text_section_ptr == NULL) | |
3669 | { | |
3670 | /* Initialize the section. */ | |
3671 | mips_elf_text_section.name = ".text"; | |
3672 | mips_elf_text_section.flags = SEC_NO_FLAGS; | |
3673 | mips_elf_text_section.output_section = NULL; | |
5b3b9ff6 ILT |
3674 | mips_elf_text_section.symbol = &mips_elf_text_symbol; |
3675 | mips_elf_text_section.symbol_ptr_ptr = &mips_elf_text_symbol_ptr; | |
3676 | mips_elf_text_symbol.name = ".text"; | |
3677 | mips_elf_text_symbol.flags = BSF_SECTION_SYM; | |
3678 | mips_elf_text_symbol.section = &mips_elf_text_section; | |
3679 | mips_elf_text_symbol_ptr = &mips_elf_text_symbol; | |
3680 | mips_elf_text_section_ptr = &mips_elf_text_section; | |
3681 | } | |
7d996a75 ILT |
3682 | /* This code used to do *secp = bfd_und_section_ptr if |
3683 | info->shared. I don't know why, and that doesn't make sense, | |
3684 | so I took it out. */ | |
3685 | *secp = mips_elf_text_section_ptr; | |
5b3b9ff6 ILT |
3686 | break; |
3687 | ||
53787b23 ILT |
3688 | case SHN_MIPS_ACOMMON: |
3689 | /* Fall through. XXX Can we treat this as allocated data? */ | |
5b3b9ff6 ILT |
3690 | case SHN_MIPS_DATA: |
3691 | /* This section is used in a shared object. */ | |
3692 | if (mips_elf_data_section_ptr == NULL) | |
3693 | { | |
3694 | /* Initialize the section. */ | |
3695 | mips_elf_data_section.name = ".data"; | |
3696 | mips_elf_data_section.flags = SEC_NO_FLAGS; | |
3697 | mips_elf_data_section.output_section = NULL; | |
5b3b9ff6 ILT |
3698 | mips_elf_data_section.symbol = &mips_elf_data_symbol; |
3699 | mips_elf_data_section.symbol_ptr_ptr = &mips_elf_data_symbol_ptr; | |
3700 | mips_elf_data_symbol.name = ".data"; | |
3701 | mips_elf_data_symbol.flags = BSF_SECTION_SYM; | |
3702 | mips_elf_data_symbol.section = &mips_elf_data_section; | |
3703 | mips_elf_data_symbol_ptr = &mips_elf_data_symbol; | |
3704 | mips_elf_data_section_ptr = &mips_elf_data_section; | |
3705 | } | |
7d996a75 ILT |
3706 | /* This code used to do *secp = bfd_und_section_ptr if |
3707 | info->shared. I don't know why, and that doesn't make sense, | |
3708 | so I took it out. */ | |
3709 | *secp = mips_elf_data_section_ptr; | |
5b3b9ff6 ILT |
3710 | break; |
3711 | ||
aac6b32f | 3712 | case SHN_MIPS_SUNDEFINED: |
24f13b03 | 3713 | *secp = bfd_und_section_ptr; |
aac6b32f ILT |
3714 | break; |
3715 | } | |
3716 | ||
eb52b9dc ILT |
3717 | if (SGI_COMPAT (abfd) |
3718 | && ! info->shared | |
3719 | && info->hash->creator == abfd->xvec | |
3720 | && strcmp (*namep, "__rld_obj_head") == 0) | |
3721 | { | |
3722 | struct elf_link_hash_entry *h; | |
3723 | ||
3724 | /* Mark __rld_obj_head as dynamic. */ | |
3725 | h = NULL; | |
3726 | if (! (_bfd_generic_link_add_one_symbol | |
3727 | (info, abfd, *namep, BSF_GLOBAL, *secp, | |
3728 | (bfd_vma) *valp, (const char *) NULL, false, | |
3729 | get_elf_backend_data (abfd)->collect, | |
3730 | (struct bfd_link_hash_entry **) &h))) | |
3731 | return false; | |
3732 | h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; | |
3733 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
3734 | h->type = STT_OBJECT; | |
3735 | ||
3736 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
3737 | return false; | |
3738 | ||
3739 | mips_elf_hash_table (info)->use_rld_obj_head = true; | |
3740 | } | |
3741 | ||
e4f4813f ILT |
3742 | /* If this is a mips16 text symbol, add 1 to the value to make it |
3743 | odd. This will cause something like .word SYM to come up with | |
3744 | the right value when it is loaded into the PC. */ | |
3745 | if (sym->st_other == STO_MIPS16) | |
3746 | ++*valp; | |
3747 | ||
aac6b32f ILT |
3748 | return true; |
3749 | } | |
3750 | ||
3751 | /* Structure used to pass information to mips_elf_output_extsym. */ | |
3752 | ||
3753 | struct extsym_info | |
6e07e54f | 3754 | { |
aac6b32f ILT |
3755 | bfd *abfd; |
3756 | struct bfd_link_info *info; | |
3757 | struct ecoff_debug_info *debug; | |
9783e04a | 3758 | const struct ecoff_debug_swap *swap; |
aac6b32f ILT |
3759 | boolean failed; |
3760 | }; | |
9783e04a | 3761 | |
aac6b32f ILT |
3762 | /* This routine is used to write out ECOFF debugging external symbol |
3763 | information. It is called via mips_elf_link_hash_traverse. The | |
3764 | ECOFF external symbol information must match the ELF external | |
3765 | symbol information. Unfortunately, at this point we don't know | |
3766 | whether a symbol is required by reloc information, so the two | |
3767 | tables may wind up being different. We must sort out the external | |
3768 | symbol information before we can set the final size of the .mdebug | |
3769 | section, and we must set the size of the .mdebug section before we | |
3770 | can relocate any sections, and we can't know which symbols are | |
3771 | required by relocation until we relocate the sections. | |
3772 | Fortunately, it is relatively unlikely that any symbol will be | |
3773 | stripped but required by a reloc. In particular, it can not happen | |
3774 | when generating a final executable. */ | |
3775 | ||
3776 | static boolean | |
3777 | mips_elf_output_extsym (h, data) | |
3778 | struct mips_elf_link_hash_entry *h; | |
3779 | PTR data; | |
3780 | { | |
3781 | struct extsym_info *einfo = (struct extsym_info *) data; | |
3782 | boolean strip; | |
5b3b9ff6 | 3783 | asection *sec, *output_section; |
aac6b32f ILT |
3784 | |
3785 | if (h->root.indx == -2) | |
3786 | strip = false; | |
3787 | else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3788 | || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0) | |
3789 | && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
3790 | && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0) | |
3791 | strip = true; | |
3792 | else if (einfo->info->strip == strip_all | |
3793 | || (einfo->info->strip == strip_some | |
3794 | && bfd_hash_lookup (einfo->info->keep_hash, | |
3795 | h->root.root.root.string, | |
3796 | false, false) == NULL)) | |
3797 | strip = true; | |
3798 | else | |
3799 | strip = false; | |
3800 | ||
3801 | if (strip) | |
3802 | return true; | |
6e07e54f | 3803 | |
aac6b32f | 3804 | if (h->esym.ifd == -2) |
6e07e54f | 3805 | { |
aac6b32f ILT |
3806 | h->esym.jmptbl = 0; |
3807 | h->esym.cobol_main = 0; | |
3808 | h->esym.weakext = 0; | |
3809 | h->esym.reserved = 0; | |
3810 | h->esym.ifd = ifdNil; | |
3811 | h->esym.asym.value = 0; | |
3812 | h->esym.asym.st = stGlobal; | |
3813 | ||
5b3b9ff6 ILT |
3814 | if (SGI_COMPAT (einfo->abfd) |
3815 | && (h->root.root.type == bfd_link_hash_undefined | |
3816 | || h->root.root.type == bfd_link_hash_undefweak)) | |
3817 | { | |
3818 | const char *name; | |
3819 | ||
3820 | /* Use undefined class. Also, set class and type for some | |
3821 | special symbols. */ | |
3822 | name = h->root.root.root.string; | |
3823 | if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0 | |
3824 | || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0) | |
3825 | { | |
3826 | h->esym.asym.sc = scData; | |
3827 | h->esym.asym.st = stLabel; | |
3828 | h->esym.asym.value = 0; | |
3829 | } | |
3830 | else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0) | |
3831 | { | |
3832 | h->esym.asym.sc = scAbs; | |
3833 | h->esym.asym.st = stLabel; | |
3834 | h->esym.asym.value = | |
3835 | mips_elf_hash_table (einfo->info)->procedure_count; | |
3836 | } | |
3837 | else if (strcmp (name, "_gp_disp") == 0) | |
3838 | { | |
3839 | h->esym.asym.sc = scAbs; | |
3840 | h->esym.asym.st = stLabel; | |
3841 | h->esym.asym.value = elf_gp (einfo->abfd); | |
3842 | } | |
3843 | else | |
3844 | h->esym.asym.sc = scUndefined; | |
3845 | } | |
3846 | else if (h->root.root.type != bfd_link_hash_defined | |
a16fcab3 | 3847 | && h->root.root.type != bfd_link_hash_defweak) |
aac6b32f ILT |
3848 | h->esym.asym.sc = scAbs; |
3849 | else | |
3850 | { | |
aac6b32f ILT |
3851 | const char *name; |
3852 | ||
5b3b9ff6 ILT |
3853 | sec = h->root.root.u.def.section; |
3854 | output_section = sec->output_section; | |
3855 | ||
3856 | /* When making a shared library and symbol h is the one from | |
3857 | the another shared library, OUTPUT_SECTION may be null. */ | |
3858 | if (output_section == NULL) | |
3859 | h->esym.asym.sc = scUndefined; | |
aac6b32f | 3860 | else |
5b3b9ff6 ILT |
3861 | { |
3862 | name = bfd_section_name (output_section->owner, output_section); | |
ff12f303 | 3863 | |
5b3b9ff6 ILT |
3864 | if (strcmp (name, ".text") == 0) |
3865 | h->esym.asym.sc = scText; | |
3866 | else if (strcmp (name, ".data") == 0) | |
3867 | h->esym.asym.sc = scData; | |
3868 | else if (strcmp (name, ".sdata") == 0) | |
3869 | h->esym.asym.sc = scSData; | |
3870 | else if (strcmp (name, ".rodata") == 0 | |
3871 | || strcmp (name, ".rdata") == 0) | |
3872 | h->esym.asym.sc = scRData; | |
3873 | else if (strcmp (name, ".bss") == 0) | |
3874 | h->esym.asym.sc = scBss; | |
3875 | else if (strcmp (name, ".sbss") == 0) | |
3876 | h->esym.asym.sc = scSBss; | |
3877 | else if (strcmp (name, ".init") == 0) | |
3878 | h->esym.asym.sc = scInit; | |
3879 | else if (strcmp (name, ".fini") == 0) | |
3880 | h->esym.asym.sc = scFini; | |
3881 | else | |
3882 | h->esym.asym.sc = scAbs; | |
3883 | } | |
aac6b32f ILT |
3884 | } |
3885 | ||
3886 | h->esym.asym.reserved = 0; | |
3887 | h->esym.asym.index = indexNil; | |
6e07e54f ILT |
3888 | } |
3889 | ||
16fe8950 ILT |
3890 | if (h->root.root.type == bfd_link_hash_common) |
3891 | h->esym.asym.value = h->root.root.u.c.size; | |
a16fcab3 KR |
3892 | else if (h->root.root.type == bfd_link_hash_defined |
3893 | || h->root.root.type == bfd_link_hash_defweak) | |
16fe8950 | 3894 | { |
16fe8950 ILT |
3895 | if (h->esym.asym.sc == scCommon) |
3896 | h->esym.asym.sc = scBss; | |
3897 | else if (h->esym.asym.sc == scSCommon) | |
3898 | h->esym.asym.sc = scSBss; | |
3899 | ||
3900 | sec = h->root.root.u.def.section; | |
5b3b9ff6 ILT |
3901 | output_section = sec->output_section; |
3902 | if (output_section != NULL) | |
3903 | h->esym.asym.value = (h->root.root.u.def.value | |
3904 | + sec->output_offset | |
3905 | + output_section->vma); | |
3906 | else | |
3907 | h->esym.asym.value = 0; | |
16fe8950 | 3908 | } |
5b3b9ff6 ILT |
3909 | else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) |
3910 | { | |
3911 | /* Set type and value for a symbol with a function stub. */ | |
3912 | h->esym.asym.st = stProc; | |
3913 | sec = h->root.root.u.def.section; | |
3914 | if (sec == NULL) | |
3915 | h->esym.asym.value = 0; | |
3916 | else | |
3917 | { | |
3918 | output_section = sec->output_section; | |
3919 | if (output_section != NULL) | |
303b4cc6 | 3920 | h->esym.asym.value = (h->root.plt.offset |
5b3b9ff6 ILT |
3921 | + sec->output_offset |
3922 | + output_section->vma); | |
3923 | else | |
3924 | h->esym.asym.value = 0; | |
3925 | } | |
3926 | #if 0 /* FIXME? */ | |
3927 | h->esym.ifd = 0; | |
3928 | #endif | |
ff12f303 | 3929 | } |
aac6b32f ILT |
3930 | |
3931 | if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap, | |
3932 | h->root.root.root.string, | |
3933 | &h->esym)) | |
3934 | { | |
3935 | einfo->failed = true; | |
3936 | return false; | |
3937 | } | |
6e07e54f ILT |
3938 | |
3939 | return true; | |
3940 | } | |
3941 | ||
5b3b9ff6 ILT |
3942 | /* Create a runtime procedure table from the .mdebug section. */ |
3943 | ||
3944 | static boolean | |
3945 | mips_elf_create_procedure_table (handle, abfd, info, s, debug) | |
3946 | PTR handle; | |
3947 | bfd *abfd; | |
3948 | struct bfd_link_info *info; | |
3949 | asection *s; | |
3950 | struct ecoff_debug_info *debug; | |
3951 | { | |
3952 | const struct ecoff_debug_swap *swap; | |
3953 | HDRR *hdr = &debug->symbolic_header; | |
3954 | RPDR *rpdr, *rp; | |
3955 | struct rpdr_ext *erp; | |
3956 | PTR rtproc; | |
3957 | struct pdr_ext *epdr; | |
3958 | struct sym_ext *esym; | |
3959 | char *ss, **sv; | |
3960 | char *str; | |
3961 | unsigned long size, count; | |
3962 | unsigned long sindex; | |
3963 | unsigned long i; | |
3964 | PDR pdr; | |
3965 | SYMR sym; | |
edac2b4c | 3966 | const char *no_name_func = _("static procedure (no name)"); |
5b3b9ff6 ILT |
3967 | |
3968 | epdr = NULL; | |
3969 | rpdr = NULL; | |
3970 | esym = NULL; | |
3971 | ss = NULL; | |
abec70b9 | 3972 | sv = NULL; |
5b3b9ff6 ILT |
3973 | |
3974 | swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; | |
3975 | ||
3976 | sindex = strlen (no_name_func) + 1; | |
3977 | count = hdr->ipdMax; | |
3978 | if (count > 0) | |
3979 | { | |
3980 | size = swap->external_pdr_size; | |
3981 | ||
3982 | epdr = (struct pdr_ext *) bfd_malloc (size * count); | |
3983 | if (epdr == NULL) | |
3984 | goto error_return; | |
3985 | ||
3986 | if (! _bfd_ecoff_get_accumulated_pdr (handle, (PTR) epdr)) | |
3987 | goto error_return; | |
3988 | ||
3989 | size = sizeof (RPDR); | |
3990 | rp = rpdr = (RPDR *) bfd_malloc (size * count); | |
3991 | if (rpdr == NULL) | |
3992 | goto error_return; | |
3993 | ||
3994 | sv = (char **) bfd_malloc (sizeof (char *) * count); | |
3995 | if (sv == NULL) | |
3996 | goto error_return; | |
3997 | ||
3998 | count = hdr->isymMax; | |
3999 | size = swap->external_sym_size; | |
4000 | esym = (struct sym_ext *) bfd_malloc (size * count); | |
4001 | if (esym == NULL) | |
4002 | goto error_return; | |
4003 | ||
4004 | if (! _bfd_ecoff_get_accumulated_sym (handle, (PTR) esym)) | |
4005 | goto error_return; | |
4006 | ||
4007 | count = hdr->issMax; | |
4008 | ss = (char *) bfd_malloc (count); | |
4009 | if (ss == NULL) | |
4010 | goto error_return; | |
4011 | if (! _bfd_ecoff_get_accumulated_ss (handle, (PTR) ss)) | |
4012 | goto error_return; | |
4013 | ||
4014 | count = hdr->ipdMax; | |
abec70b9 | 4015 | for (i = 0; i < count; i++, rp++) |
5b3b9ff6 | 4016 | { |
abec70b9 | 4017 | (*swap->swap_pdr_in) (abfd, (PTR) (epdr + i), &pdr); |
5b3b9ff6 ILT |
4018 | (*swap->swap_sym_in) (abfd, (PTR) &esym[pdr.isym], &sym); |
4019 | rp->adr = sym.value; | |
4020 | rp->regmask = pdr.regmask; | |
4021 | rp->regoffset = pdr.regoffset; | |
4022 | rp->fregmask = pdr.fregmask; | |
4023 | rp->fregoffset = pdr.fregoffset; | |
4024 | rp->frameoffset = pdr.frameoffset; | |
4025 | rp->framereg = pdr.framereg; | |
4026 | rp->pcreg = pdr.pcreg; | |
4027 | rp->irpss = sindex; | |
4028 | sv[i] = ss + sym.iss; | |
4029 | sindex += strlen (sv[i]) + 1; | |
4030 | } | |
4031 | } | |
4032 | ||
4033 | size = sizeof (struct rpdr_ext) * (count + 2) + sindex; | |
4034 | size = BFD_ALIGN (size, 16); | |
4035 | rtproc = (PTR) bfd_alloc (abfd, size); | |
4036 | if (rtproc == NULL) | |
4037 | { | |
4038 | mips_elf_hash_table (info)->procedure_count = 0; | |
4039 | goto error_return; | |
4040 | } | |
4041 | ||
4042 | mips_elf_hash_table (info)->procedure_count = count + 2; | |
4043 | ||
4044 | erp = (struct rpdr_ext *) rtproc; | |
abec70b9 | 4045 | memset (erp, 0, sizeof (struct rpdr_ext)); |
5b3b9ff6 ILT |
4046 | erp++; |
4047 | str = (char *) rtproc + sizeof (struct rpdr_ext) * (count + 2); | |
4048 | strcpy (str, no_name_func); | |
4049 | str += strlen (no_name_func) + 1; | |
4050 | for (i = 0; i < count; i++) | |
4051 | { | |
4052 | ecoff_swap_rpdr_out (abfd, rpdr + i, erp + i); | |
4053 | strcpy (str, sv[i]); | |
4054 | str += strlen (sv[i]) + 1; | |
4055 | } | |
4056 | ecoff_put_off (abfd, (bfd_vma) -1, (bfd_byte *) (erp + count)->p_adr); | |
4057 | ||
4058 | /* Set the size and contents of .rtproc section. */ | |
4059 | s->_raw_size = size; | |
8211c929 | 4060 | s->contents = (bfd_byte *) rtproc; |
5b3b9ff6 ILT |
4061 | |
4062 | /* Skip this section later on (I don't think this currently | |
4063 | matters, but someday it might). */ | |
4064 | s->link_order_head = (struct bfd_link_order *) NULL; | |
4065 | ||
abec70b9 ILT |
4066 | if (epdr != NULL) |
4067 | free (epdr); | |
4068 | if (rpdr != NULL) | |
4069 | free (rpdr); | |
4070 | if (esym != NULL) | |
4071 | free (esym); | |
4072 | if (ss != NULL) | |
4073 | free (ss); | |
4074 | if (sv != NULL) | |
4075 | free (sv); | |
5b3b9ff6 ILT |
4076 | |
4077 | return true; | |
4078 | ||
4079 | error_return: | |
4080 | if (epdr != NULL) | |
4081 | free (epdr); | |
4082 | if (rpdr != NULL) | |
4083 | free (rpdr); | |
4084 | if (esym != NULL) | |
4085 | free (esym); | |
4086 | if (ss != NULL) | |
4087 | free (ss); | |
4088 | if (sv != NULL) | |
4089 | free (sv); | |
4090 | return false; | |
4091 | } | |
4092 | ||
aac6b32f | 4093 | /* A comparison routine used to sort .gptab entries. */ |
6e07e54f | 4094 | |
aac6b32f ILT |
4095 | static int |
4096 | gptab_compare (p1, p2) | |
4097 | const PTR p1; | |
4098 | const PTR p2; | |
6e07e54f | 4099 | { |
aac6b32f ILT |
4100 | const Elf32_gptab *a1 = (const Elf32_gptab *) p1; |
4101 | const Elf32_gptab *a2 = (const Elf32_gptab *) p2; | |
4102 | ||
4103 | return a1->gt_entry.gt_g_value - a2->gt_entry.gt_g_value; | |
6e07e54f ILT |
4104 | } |
4105 | ||
4106 | /* We need to use a special link routine to handle the .reginfo and | |
4107 | the .mdebug sections. We need to merge all instances of these | |
4108 | sections together, not write them all out sequentially. */ | |
4109 | ||
4110 | static boolean | |
4111 | mips_elf_final_link (abfd, info) | |
4112 | bfd *abfd; | |
4113 | struct bfd_link_info *info; | |
4114 | { | |
6e07e54f ILT |
4115 | asection **secpp; |
4116 | asection *o; | |
4117 | struct bfd_link_order *p; | |
aac6b32f | 4118 | asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec; |
5b3b9ff6 | 4119 | asection *rtproc_sec; |
b3c0fc57 | 4120 | Elf32_RegInfo reginfo; |
6e07e54f ILT |
4121 | struct ecoff_debug_info debug; |
4122 | const struct ecoff_debug_swap *swap | |
4123 | = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; | |
4124 | HDRR *symhdr = &debug.symbolic_header; | |
9783e04a | 4125 | PTR mdebug_handle = NULL; |
6e07e54f | 4126 | |
497c5434 | 4127 | /* Drop the .options section, since it has special semantics which I |
aac6b32f ILT |
4128 | haven't bothered to figure out. */ |
4129 | for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next) | |
6e07e54f | 4130 | { |
aac6b32f | 4131 | if (strcmp ((*secpp)->name, ".options") == 0) |
6e07e54f | 4132 | { |
aac6b32f ILT |
4133 | for (p = (*secpp)->link_order_head; p != NULL; p = p->next) |
4134 | if (p->type == bfd_indirect_link_order) | |
4135 | p->u.indirect.section->flags &=~ SEC_HAS_CONTENTS; | |
4136 | (*secpp)->link_order_head = NULL; | |
6e07e54f ILT |
4137 | *secpp = (*secpp)->next; |
4138 | --abfd->section_count; | |
aac6b32f | 4139 | break; |
6e07e54f | 4140 | } |
6e07e54f | 4141 | } |
b3c0fc57 | 4142 | |
5b3b9ff6 ILT |
4143 | /* Get a value for the GP register. */ |
4144 | if (elf_gp (abfd) == 0) | |
b3c0fc57 | 4145 | { |
5b3b9ff6 ILT |
4146 | struct bfd_link_hash_entry *h; |
4147 | ||
4148 | h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true); | |
4149 | if (h != (struct bfd_link_hash_entry *) NULL | |
4150 | && h->type == bfd_link_hash_defined) | |
4151 | elf_gp (abfd) = (h->u.def.value | |
4152 | + h->u.def.section->output_section->vma | |
4153 | + h->u.def.section->output_offset); | |
4154 | else if (info->relocateable) | |
b3c0fc57 | 4155 | { |
5b3b9ff6 | 4156 | bfd_vma lo; |
b3c0fc57 | 4157 | |
5b3b9ff6 ILT |
4158 | /* Make up a value. */ |
4159 | lo = (bfd_vma) -1; | |
4160 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4161 | { | |
4162 | if (o->vma < lo | |
4163 | && (strcmp (o->name, ".sbss") == 0 | |
4164 | || strcmp (o->name, ".sdata") == 0 | |
4165 | || strcmp (o->name, ".lit4") == 0 | |
4166 | || strcmp (o->name, ".lit8") == 0)) | |
4167 | lo = o->vma; | |
4168 | } | |
4169 | elf_gp (abfd) = lo + ELF_MIPS_GP_OFFSET (abfd); | |
4170 | } | |
4171 | else | |
4172 | { | |
4173 | /* If the relocate_section function needs to do a reloc | |
4174 | involving the GP value, it should make a reloc_dangerous | |
4175 | callback to warn that GP is not defined. */ | |
4176 | } | |
4177 | } | |
4178 | ||
4179 | /* Go through the sections and collect the .reginfo and .mdebug | |
4180 | information. */ | |
4181 | reginfo_sec = NULL; | |
4182 | mdebug_sec = NULL; | |
4183 | gptab_data_sec = NULL; | |
4184 | gptab_bss_sec = NULL; | |
4185 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4186 | { | |
4187 | if (strcmp (o->name, ".reginfo") == 0) | |
4188 | { | |
4189 | memset (®info, 0, sizeof reginfo); | |
4190 | ||
4191 | /* We have found the .reginfo section in the output file. | |
4192 | Look through all the link_orders comprising it and merge | |
4193 | the information together. */ | |
4194 | for (p = o->link_order_head; | |
4195 | p != (struct bfd_link_order *) NULL; | |
4196 | p = p->next) | |
4197 | { | |
4198 | asection *input_section; | |
6e07e54f ILT |
4199 | bfd *input_bfd; |
4200 | Elf32_External_RegInfo ext; | |
4201 | Elf32_RegInfo sub; | |
4202 | ||
4203 | if (p->type != bfd_indirect_link_order) | |
aac6b32f ILT |
4204 | { |
4205 | if (p->type == bfd_fill_link_order) | |
4206 | continue; | |
4207 | abort (); | |
4208 | } | |
6e07e54f ILT |
4209 | |
4210 | input_section = p->u.indirect.section; | |
4211 | input_bfd = input_section->owner; | |
a16fcab3 KR |
4212 | |
4213 | /* The linker emulation code has probably clobbered the | |
4214 | size to be zero bytes. */ | |
4215 | if (input_section->_raw_size == 0) | |
4216 | input_section->_raw_size = sizeof (Elf32_External_RegInfo); | |
4217 | ||
6e07e54f ILT |
4218 | if (! bfd_get_section_contents (input_bfd, input_section, |
4219 | (PTR) &ext, | |
4220 | (file_ptr) 0, | |
4221 | sizeof ext)) | |
4222 | return false; | |
4223 | ||
4224 | bfd_mips_elf32_swap_reginfo_in (input_bfd, &ext, &sub); | |
4225 | ||
4226 | reginfo.ri_gprmask |= sub.ri_gprmask; | |
4227 | reginfo.ri_cprmask[0] |= sub.ri_cprmask[0]; | |
4228 | reginfo.ri_cprmask[1] |= sub.ri_cprmask[1]; | |
4229 | reginfo.ri_cprmask[2] |= sub.ri_cprmask[2]; | |
4230 | reginfo.ri_cprmask[3] |= sub.ri_cprmask[3]; | |
4231 | ||
4232 | /* ri_gp_value is set by the function | |
00176555 | 4233 | mips_elf32_section_processing when the section is |
6e07e54f | 4234 | finally written out. */ |
aac6b32f ILT |
4235 | |
4236 | /* Hack: reset the SEC_HAS_CONTENTS flag so that | |
4237 | elf_link_input_bfd ignores this section. */ | |
4238 | input_section->flags &=~ SEC_HAS_CONTENTS; | |
6e07e54f ILT |
4239 | } |
4240 | ||
4241 | /* Force the section size to the value we want. */ | |
4242 | o->_raw_size = sizeof (Elf32_External_RegInfo); | |
4243 | ||
aac6b32f ILT |
4244 | /* Skip this section later on (I don't think this currently |
4245 | matters, but someday it might). */ | |
6e07e54f ILT |
4246 | o->link_order_head = (struct bfd_link_order *) NULL; |
4247 | ||
4248 | reginfo_sec = o; | |
4249 | } | |
4250 | ||
4251 | if (strcmp (o->name, ".mdebug") == 0) | |
4252 | { | |
aac6b32f ILT |
4253 | struct extsym_info einfo; |
4254 | ||
6e07e54f ILT |
4255 | /* We have found the .mdebug section in the output file. |
4256 | Look through all the link_orders comprising it and merge | |
4257 | the information together. */ | |
4258 | symhdr->magic = swap->sym_magic; | |
4259 | /* FIXME: What should the version stamp be? */ | |
4260 | symhdr->vstamp = 0; | |
4261 | symhdr->ilineMax = 0; | |
4262 | symhdr->cbLine = 0; | |
4263 | symhdr->idnMax = 0; | |
4264 | symhdr->ipdMax = 0; | |
4265 | symhdr->isymMax = 0; | |
4266 | symhdr->ioptMax = 0; | |
4267 | symhdr->iauxMax = 0; | |
4268 | symhdr->issMax = 0; | |
4269 | symhdr->issExtMax = 0; | |
4270 | symhdr->ifdMax = 0; | |
4271 | symhdr->crfd = 0; | |
4272 | symhdr->iextMax = 0; | |
4273 | ||
4274 | /* We accumulate the debugging information itself in the | |
4275 | debug_info structure. */ | |
9783e04a DM |
4276 | debug.line = NULL; |
4277 | debug.external_dnr = NULL; | |
4278 | debug.external_pdr = NULL; | |
4279 | debug.external_sym = NULL; | |
4280 | debug.external_opt = NULL; | |
4281 | debug.external_aux = NULL; | |
4282 | debug.ss = NULL; | |
6e07e54f | 4283 | debug.ssext = debug.ssext_end = NULL; |
9783e04a DM |
4284 | debug.external_fdr = NULL; |
4285 | debug.external_rfd = NULL; | |
6e07e54f ILT |
4286 | debug.external_ext = debug.external_ext_end = NULL; |
4287 | ||
9783e04a DM |
4288 | mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info); |
4289 | if (mdebug_handle == (PTR) NULL) | |
4290 | return false; | |
4291 | ||
5b3b9ff6 ILT |
4292 | if (SGI_COMPAT (abfd)) |
4293 | { | |
4294 | asection *s; | |
4295 | EXTR esym; | |
4296 | bfd_vma last; | |
4297 | unsigned int i; | |
4298 | static const char * const name[] = | |
4299 | { ".text", ".init", ".fini", ".data", | |
4300 | ".rodata", ".sdata", ".sbss", ".bss" }; | |
4301 | static const int sc[] = { scText, scInit, scFini, scData, | |
4302 | scRData, scSData, scSBss, scBss }; | |
4303 | ||
4304 | esym.jmptbl = 0; | |
4305 | esym.cobol_main = 0; | |
4306 | esym.weakext = 0; | |
4307 | esym.reserved = 0; | |
4308 | esym.ifd = ifdNil; | |
4309 | esym.asym.iss = issNil; | |
4310 | esym.asym.st = stLocal; | |
4311 | esym.asym.reserved = 0; | |
4312 | esym.asym.index = indexNil; | |
edac2b4c | 4313 | last = 0; |
5b3b9ff6 ILT |
4314 | for (i = 0; i < 8; i++) |
4315 | { | |
4316 | esym.asym.sc = sc[i]; | |
4317 | s = bfd_get_section_by_name (abfd, name[i]); | |
4318 | if (s != NULL) | |
4319 | { | |
4320 | esym.asym.value = s->vma; | |
4321 | last = s->vma + s->_raw_size; | |
4322 | } | |
4323 | else | |
4324 | esym.asym.value = last; | |
ff12f303 | 4325 | |
5b3b9ff6 ILT |
4326 | if (! bfd_ecoff_debug_one_external (abfd, &debug, swap, |
4327 | name[i], &esym)) | |
4328 | return false; | |
4329 | } | |
4330 | } | |
4331 | ||
6e07e54f ILT |
4332 | for (p = o->link_order_head; |
4333 | p != (struct bfd_link_order *) NULL; | |
4334 | p = p->next) | |
4335 | { | |
4336 | asection *input_section; | |
4337 | bfd *input_bfd; | |
4338 | const struct ecoff_debug_swap *input_swap; | |
4339 | struct ecoff_debug_info input_debug; | |
aac6b32f ILT |
4340 | char *eraw_src; |
4341 | char *eraw_end; | |
6e07e54f ILT |
4342 | |
4343 | if (p->type != bfd_indirect_link_order) | |
aac6b32f ILT |
4344 | { |
4345 | if (p->type == bfd_fill_link_order) | |
4346 | continue; | |
4347 | abort (); | |
4348 | } | |
6e07e54f ILT |
4349 | |
4350 | input_section = p->u.indirect.section; | |
4351 | input_bfd = input_section->owner; | |
4352 | ||
4353 | if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour | |
4354 | || (get_elf_backend_data (input_bfd) | |
4355 | ->elf_backend_ecoff_debug_swap) == NULL) | |
b3c0fc57 | 4356 | { |
6e07e54f ILT |
4357 | /* I don't know what a non MIPS ELF bfd would be |
4358 | doing with a .mdebug section, but I don't really | |
4359 | want to deal with it. */ | |
4360 | continue; | |
b3c0fc57 | 4361 | } |
6e07e54f ILT |
4362 | |
4363 | input_swap = (get_elf_backend_data (input_bfd) | |
4364 | ->elf_backend_ecoff_debug_swap); | |
4365 | ||
4366 | BFD_ASSERT (p->size == input_section->_raw_size); | |
4367 | ||
4368 | /* The ECOFF linking code expects that we have already | |
4369 | read in the debugging information and set up an | |
4370 | ecoff_debug_info structure, so we do that now. */ | |
00176555 ILT |
4371 | if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section, |
4372 | &input_debug)) | |
6e07e54f ILT |
4373 | return false; |
4374 | ||
4375 | if (! (bfd_ecoff_debug_accumulate | |
9783e04a DM |
4376 | (mdebug_handle, abfd, &debug, swap, input_bfd, |
4377 | &input_debug, input_swap, info))) | |
6e07e54f ILT |
4378 | return false; |
4379 | ||
4380 | /* Loop through the external symbols. For each one with | |
aac6b32f ILT |
4381 | interesting information, try to find the symbol in |
4382 | the linker global hash table and save the information | |
4383 | for the output external symbols. */ | |
4384 | eraw_src = input_debug.external_ext; | |
4385 | eraw_end = (eraw_src | |
4386 | + (input_debug.symbolic_header.iextMax | |
4387 | * input_swap->external_ext_size)); | |
4388 | for (; | |
4389 | eraw_src < eraw_end; | |
4390 | eraw_src += input_swap->external_ext_size) | |
6e07e54f | 4391 | { |
aac6b32f ILT |
4392 | EXTR ext; |
4393 | const char *name; | |
4394 | struct mips_elf_link_hash_entry *h; | |
4395 | ||
4396 | (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext); | |
4397 | if (ext.asym.sc == scNil | |
4398 | || ext.asym.sc == scUndefined | |
4399 | || ext.asym.sc == scSUndefined) | |
4400 | continue; | |
4401 | ||
4402 | name = input_debug.ssext + ext.asym.iss; | |
4403 | h = mips_elf_link_hash_lookup (mips_elf_hash_table (info), | |
4404 | name, false, false, true); | |
4405 | if (h == NULL || h->esym.ifd != -2) | |
4406 | continue; | |
4407 | ||
4408 | if (ext.ifd != -1) | |
6e07e54f | 4409 | { |
aac6b32f ILT |
4410 | BFD_ASSERT (ext.ifd |
4411 | < input_debug.symbolic_header.ifdMax); | |
4412 | ext.ifd = input_debug.ifdmap[ext.ifd]; | |
6e07e54f | 4413 | } |
aac6b32f ILT |
4414 | |
4415 | h->esym = ext; | |
6e07e54f ILT |
4416 | } |
4417 | ||
aac6b32f | 4418 | /* Free up the information we just read. */ |
6e07e54f ILT |
4419 | free (input_debug.line); |
4420 | free (input_debug.external_dnr); | |
4421 | free (input_debug.external_pdr); | |
4422 | free (input_debug.external_sym); | |
4423 | free (input_debug.external_opt); | |
4424 | free (input_debug.external_aux); | |
4425 | free (input_debug.ss); | |
4426 | free (input_debug.ssext); | |
4427 | free (input_debug.external_fdr); | |
4428 | free (input_debug.external_rfd); | |
aac6b32f ILT |
4429 | free (input_debug.external_ext); |
4430 | ||
4431 | /* Hack: reset the SEC_HAS_CONTENTS flag so that | |
4432 | elf_link_input_bfd ignores this section. */ | |
4433 | input_section->flags &=~ SEC_HAS_CONTENTS; | |
b3c0fc57 ILT |
4434 | } |
4435 | ||
5b3b9ff6 ILT |
4436 | if (SGI_COMPAT (abfd) && info->shared) |
4437 | { | |
4438 | /* Create .rtproc section. */ | |
4439 | rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc"); | |
4440 | if (rtproc_sec == NULL) | |
4441 | { | |
4442 | flagword flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
ff12f303 | 4443 | | SEC_LINKER_CREATED | SEC_READONLY); |
5b3b9ff6 ILT |
4444 | |
4445 | rtproc_sec = bfd_make_section (abfd, ".rtproc"); | |
4446 | if (rtproc_sec == NULL | |
4447 | || ! bfd_set_section_flags (abfd, rtproc_sec, flags) | |
7d996a75 | 4448 | || ! bfd_set_section_alignment (abfd, rtproc_sec, 4)) |
5b3b9ff6 ILT |
4449 | return false; |
4450 | } | |
4451 | ||
4452 | if (! mips_elf_create_procedure_table (mdebug_handle, abfd, | |
4453 | info, rtproc_sec, &debug)) | |
4454 | return false; | |
4455 | } | |
4456 | ||
6e07e54f | 4457 | /* Build the external symbol information. */ |
aac6b32f ILT |
4458 | einfo.abfd = abfd; |
4459 | einfo.info = info; | |
4460 | einfo.debug = &debug; | |
4461 | einfo.swap = swap; | |
4462 | einfo.failed = false; | |
4463 | mips_elf_link_hash_traverse (mips_elf_hash_table (info), | |
4464 | mips_elf_output_extsym, | |
4465 | (PTR) &einfo); | |
4466 | if (einfo.failed) | |
b3c0fc57 ILT |
4467 | return false; |
4468 | ||
aac6b32f | 4469 | /* Set the size of the .mdebug section. */ |
6e07e54f ILT |
4470 | o->_raw_size = bfd_ecoff_debug_size (abfd, &debug, swap); |
4471 | ||
aac6b32f ILT |
4472 | /* Skip this section later on (I don't think this currently |
4473 | matters, but someday it might). */ | |
6e07e54f ILT |
4474 | o->link_order_head = (struct bfd_link_order *) NULL; |
4475 | ||
4476 | mdebug_sec = o; | |
4477 | } | |
6e07e54f | 4478 | |
aac6b32f | 4479 | if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0) |
6e07e54f | 4480 | { |
aac6b32f ILT |
4481 | const char *subname; |
4482 | unsigned int c; | |
4483 | Elf32_gptab *tab; | |
4484 | Elf32_External_gptab *ext_tab; | |
4485 | unsigned int i; | |
4486 | ||
4487 | /* The .gptab.sdata and .gptab.sbss sections hold | |
4488 | information describing how the small data area would | |
4489 | change depending upon the -G switch. These sections | |
4490 | not used in executables files. */ | |
4491 | if (! info->relocateable) | |
4492 | { | |
4493 | asection **secpp; | |
4494 | ||
4495 | for (p = o->link_order_head; | |
4496 | p != (struct bfd_link_order *) NULL; | |
4497 | p = p->next) | |
4498 | { | |
4499 | asection *input_section; | |
4500 | ||
4501 | if (p->type != bfd_indirect_link_order) | |
4502 | { | |
4503 | if (p->type == bfd_fill_link_order) | |
4504 | continue; | |
4505 | abort (); | |
4506 | } | |
4507 | ||
4508 | input_section = p->u.indirect.section; | |
4509 | ||
4510 | /* Hack: reset the SEC_HAS_CONTENTS flag so that | |
4511 | elf_link_input_bfd ignores this section. */ | |
4512 | input_section->flags &=~ SEC_HAS_CONTENTS; | |
4513 | } | |
4514 | ||
4515 | /* Skip this section later on (I don't think this | |
4516 | currently matters, but someday it might). */ | |
4517 | o->link_order_head = (struct bfd_link_order *) NULL; | |
4518 | ||
4519 | /* Really remove the section. */ | |
4520 | for (secpp = &abfd->sections; | |
4521 | *secpp != o; | |
4522 | secpp = &(*secpp)->next) | |
4523 | ; | |
4524 | *secpp = (*secpp)->next; | |
4525 | --abfd->section_count; | |
4526 | ||
4527 | continue; | |
4528 | } | |
4529 | ||
4530 | /* There is one gptab for initialized data, and one for | |
4531 | uninitialized data. */ | |
4532 | if (strcmp (o->name, ".gptab.sdata") == 0) | |
4533 | gptab_data_sec = o; | |
4534 | else if (strcmp (o->name, ".gptab.sbss") == 0) | |
4535 | gptab_bss_sec = o; | |
4536 | else | |
4537 | { | |
a9713b91 | 4538 | (*_bfd_error_handler) |
edac2b4c | 4539 | (_("%s: illegal section name `%s'"), |
a9713b91 | 4540 | bfd_get_filename (abfd), o->name); |
aac6b32f ILT |
4541 | bfd_set_error (bfd_error_nonrepresentable_section); |
4542 | return false; | |
4543 | } | |
4544 | ||
4545 | /* The linker script always combines .gptab.data and | |
4546 | .gptab.sdata into .gptab.sdata, and likewise for | |
4547 | .gptab.bss and .gptab.sbss. It is possible that there is | |
4548 | no .sdata or .sbss section in the output file, in which | |
4549 | case we must change the name of the output section. */ | |
4550 | subname = o->name + sizeof ".gptab" - 1; | |
4551 | if (bfd_get_section_by_name (abfd, subname) == NULL) | |
4552 | { | |
4553 | if (o == gptab_data_sec) | |
4554 | o->name = ".gptab.data"; | |
4555 | else | |
4556 | o->name = ".gptab.bss"; | |
4557 | subname = o->name + sizeof ".gptab" - 1; | |
4558 | BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL); | |
4559 | } | |
4560 | ||
4561 | /* Set up the first entry. */ | |
4562 | c = 1; | |
5b3b9ff6 | 4563 | tab = (Elf32_gptab *) bfd_malloc (c * sizeof (Elf32_gptab)); |
aac6b32f | 4564 | if (tab == NULL) |
5b3b9ff6 | 4565 | return false; |
aac6b32f ILT |
4566 | tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd); |
4567 | tab[0].gt_header.gt_unused = 0; | |
4568 | ||
4569 | /* Combine the input sections. */ | |
6e07e54f ILT |
4570 | for (p = o->link_order_head; |
4571 | p != (struct bfd_link_order *) NULL; | |
4572 | p = p->next) | |
4573 | { | |
aac6b32f ILT |
4574 | asection *input_section; |
4575 | bfd *input_bfd; | |
4576 | bfd_size_type size; | |
4577 | unsigned long last; | |
4578 | bfd_size_type gpentry; | |
4579 | ||
4580 | if (p->type != bfd_indirect_link_order) | |
6e07e54f | 4581 | { |
aac6b32f ILT |
4582 | if (p->type == bfd_fill_link_order) |
4583 | continue; | |
4584 | abort (); | |
4585 | } | |
6e07e54f | 4586 | |
aac6b32f ILT |
4587 | input_section = p->u.indirect.section; |
4588 | input_bfd = input_section->owner; | |
4589 | ||
4590 | /* Combine the gptab entries for this input section one | |
4591 | by one. We know that the input gptab entries are | |
4592 | sorted by ascending -G value. */ | |
4593 | size = bfd_section_size (input_bfd, input_section); | |
4594 | last = 0; | |
4595 | for (gpentry = sizeof (Elf32_External_gptab); | |
4596 | gpentry < size; | |
4597 | gpentry += sizeof (Elf32_External_gptab)) | |
4598 | { | |
4599 | Elf32_External_gptab ext_gptab; | |
4600 | Elf32_gptab int_gptab; | |
4601 | unsigned long val; | |
4602 | unsigned long add; | |
4603 | boolean exact; | |
4604 | unsigned int look; | |
4605 | ||
4606 | if (! (bfd_get_section_contents | |
4607 | (input_bfd, input_section, (PTR) &ext_gptab, | |
4608 | gpentry, sizeof (Elf32_External_gptab)))) | |
9783e04a | 4609 | { |
aac6b32f | 4610 | free (tab); |
9783e04a DM |
4611 | return false; |
4612 | } | |
aac6b32f ILT |
4613 | |
4614 | bfd_mips_elf32_swap_gptab_in (input_bfd, &ext_gptab, | |
4615 | &int_gptab); | |
4616 | val = int_gptab.gt_entry.gt_g_value; | |
4617 | add = int_gptab.gt_entry.gt_bytes - last; | |
4618 | ||
4619 | exact = false; | |
4620 | for (look = 1; look < c; look++) | |
4621 | { | |
4622 | if (tab[look].gt_entry.gt_g_value >= val) | |
4623 | tab[look].gt_entry.gt_bytes += add; | |
4624 | ||
4625 | if (tab[look].gt_entry.gt_g_value == val) | |
4626 | exact = true; | |
4627 | } | |
4628 | ||
4629 | if (! exact) | |
4630 | { | |
4631 | Elf32_gptab *new_tab; | |
4632 | unsigned int max; | |
4633 | ||
4634 | /* We need a new table entry. */ | |
4635 | new_tab = ((Elf32_gptab *) | |
5b3b9ff6 ILT |
4636 | bfd_realloc ((PTR) tab, |
4637 | (c + 1) * sizeof (Elf32_gptab))); | |
aac6b32f ILT |
4638 | if (new_tab == NULL) |
4639 | { | |
aac6b32f ILT |
4640 | free (tab); |
4641 | return false; | |
4642 | } | |
4643 | tab = new_tab; | |
4644 | tab[c].gt_entry.gt_g_value = val; | |
4645 | tab[c].gt_entry.gt_bytes = add; | |
4646 | ||
4647 | /* Merge in the size for the next smallest -G | |
4648 | value, since that will be implied by this new | |
4649 | value. */ | |
4650 | max = 0; | |
4651 | for (look = 1; look < c; look++) | |
4652 | { | |
4653 | if (tab[look].gt_entry.gt_g_value < val | |
4654 | && (max == 0 | |
4655 | || (tab[look].gt_entry.gt_g_value | |
4656 | > tab[max].gt_entry.gt_g_value))) | |
4657 | max = look; | |
4658 | } | |
4659 | if (max != 0) | |
4660 | tab[c].gt_entry.gt_bytes += | |
4661 | tab[max].gt_entry.gt_bytes; | |
4662 | ||
4663 | ++c; | |
4664 | } | |
4665 | ||
4666 | last = int_gptab.gt_entry.gt_bytes; | |
6e07e54f | 4667 | } |
aac6b32f ILT |
4668 | |
4669 | /* Hack: reset the SEC_HAS_CONTENTS flag so that | |
4670 | elf_link_input_bfd ignores this section. */ | |
4671 | input_section->flags &=~ SEC_HAS_CONTENTS; | |
6e07e54f | 4672 | } |
aac6b32f ILT |
4673 | |
4674 | /* The table must be sorted by -G value. */ | |
4675 | if (c > 2) | |
4676 | qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare); | |
4677 | ||
4678 | /* Swap out the table. */ | |
4679 | ext_tab = ((Elf32_External_gptab *) | |
4680 | bfd_alloc (abfd, c * sizeof (Elf32_External_gptab))); | |
4681 | if (ext_tab == NULL) | |
6e07e54f | 4682 | { |
aac6b32f ILT |
4683 | free (tab); |
4684 | return false; | |
4685 | } | |
4686 | ||
4687 | for (i = 0; i < c; i++) | |
4688 | bfd_mips_elf32_swap_gptab_out (abfd, tab + i, ext_tab + i); | |
4689 | free (tab); | |
4690 | ||
4691 | o->_raw_size = c * sizeof (Elf32_External_gptab); | |
4692 | o->contents = (bfd_byte *) ext_tab; | |
4693 | ||
4694 | /* Skip this section later on (I don't think this currently | |
4695 | matters, but someday it might). */ | |
4696 | o->link_order_head = (struct bfd_link_order *) NULL; | |
4697 | } | |
4698 | } | |
4699 | ||
aac6b32f ILT |
4700 | /* Invoke the regular ELF backend linker to do all the work. */ |
4701 | if (! bfd_elf32_bfd_final_link (abfd, info)) | |
4702 | return false; | |
4703 | ||
4704 | /* Now write out the computed sections. */ | |
4705 | ||
6e07e54f ILT |
4706 | if (reginfo_sec != (asection *) NULL) |
4707 | { | |
4708 | Elf32_External_RegInfo ext; | |
4709 | ||
4710 | bfd_mips_elf32_swap_reginfo_out (abfd, ®info, &ext); | |
4711 | if (! bfd_set_section_contents (abfd, reginfo_sec, (PTR) &ext, | |
4712 | (file_ptr) 0, sizeof ext)) | |
4713 | return false; | |
4714 | } | |
b3c0fc57 | 4715 | |
6e07e54f ILT |
4716 | if (mdebug_sec != (asection *) NULL) |
4717 | { | |
aac6b32f | 4718 | BFD_ASSERT (abfd->output_has_begun); |
9783e04a DM |
4719 | if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug, |
4720 | swap, info, | |
4721 | mdebug_sec->filepos)) | |
6e07e54f | 4722 | return false; |
9783e04a DM |
4723 | |
4724 | bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info); | |
b3c0fc57 ILT |
4725 | } |
4726 | ||
aac6b32f | 4727 | if (gptab_data_sec != (asection *) NULL) |
6e07e54f | 4728 | { |
aac6b32f ILT |
4729 | if (! bfd_set_section_contents (abfd, gptab_data_sec, |
4730 | gptab_data_sec->contents, | |
4731 | (file_ptr) 0, | |
4732 | gptab_data_sec->_raw_size)) | |
4733 | return false; | |
4734 | } | |
4735 | ||
4736 | if (gptab_bss_sec != (asection *) NULL) | |
4737 | { | |
4738 | if (! bfd_set_section_contents (abfd, gptab_bss_sec, | |
4739 | gptab_bss_sec->contents, | |
4740 | (file_ptr) 0, | |
4741 | gptab_bss_sec->_raw_size)) | |
4742 | return false; | |
6e07e54f ILT |
4743 | } |
4744 | ||
5b3b9ff6 ILT |
4745 | if (SGI_COMPAT (abfd)) |
4746 | { | |
4747 | rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc"); | |
4748 | if (rtproc_sec != NULL) | |
4749 | { | |
4750 | if (! bfd_set_section_contents (abfd, rtproc_sec, | |
4751 | rtproc_sec->contents, | |
4752 | (file_ptr) 0, | |
4753 | rtproc_sec->_raw_size)) | |
4754 | return false; | |
4755 | } | |
4756 | } | |
4757 | ||
6e07e54f | 4758 | return true; |
b3c0fc57 | 4759 | } |
6e07e54f | 4760 | |
aac6b32f | 4761 | /* Handle a MIPS ELF HI16 reloc. */ |
b3c0fc57 ILT |
4762 | |
4763 | static void | |
aac6b32f ILT |
4764 | mips_elf_relocate_hi16 (input_bfd, relhi, rello, contents, addend) |
4765 | bfd *input_bfd; | |
4766 | Elf_Internal_Rela *relhi; | |
4767 | Elf_Internal_Rela *rello; | |
4768 | bfd_byte *contents; | |
4769 | bfd_vma addend; | |
b3c0fc57 | 4770 | { |
aac6b32f ILT |
4771 | bfd_vma insn; |
4772 | bfd_vma addlo; | |
b3c0fc57 | 4773 | |
aac6b32f ILT |
4774 | insn = bfd_get_32 (input_bfd, contents + relhi->r_offset); |
4775 | ||
4776 | addlo = bfd_get_32 (input_bfd, contents + rello->r_offset); | |
4777 | addlo &= 0xffff; | |
4778 | ||
4779 | addend += ((insn & 0xffff) << 16) + addlo; | |
4780 | ||
4781 | if ((addlo & 0x8000) != 0) | |
4782 | addend -= 0x10000; | |
4783 | if ((addend & 0x8000) != 0) | |
4784 | addend += 0x10000; | |
4785 | ||
4786 | bfd_put_32 (input_bfd, | |
4787 | (insn & 0xffff0000) | ((addend >> 16) & 0xffff), | |
4788 | contents + relhi->r_offset); | |
4789 | } | |
4790 | ||
5b3b9ff6 ILT |
4791 | /* Handle a MIPS ELF local GOT16 reloc. */ |
4792 | ||
85d6f0b4 | 4793 | static boolean |
5b3b9ff6 ILT |
4794 | mips_elf_relocate_got_local (output_bfd, input_bfd, sgot, relhi, rello, |
4795 | contents, addend) | |
4796 | bfd *output_bfd; | |
4797 | bfd *input_bfd; | |
4798 | asection *sgot; | |
4799 | Elf_Internal_Rela *relhi; | |
4800 | Elf_Internal_Rela *rello; | |
4801 | bfd_byte *contents; | |
4802 | bfd_vma addend; | |
4803 | { | |
85d6f0b4 ILT |
4804 | unsigned int assigned_gotno; |
4805 | unsigned int i; | |
5b3b9ff6 ILT |
4806 | bfd_vma insn; |
4807 | bfd_vma addlo; | |
4808 | bfd_vma address; | |
4809 | bfd_vma hipage; | |
4810 | bfd_byte *got_contents; | |
4811 | struct mips_got_info *g; | |
4812 | ||
4813 | insn = bfd_get_32 (input_bfd, contents + relhi->r_offset); | |
4814 | ||
4815 | addlo = bfd_get_32 (input_bfd, contents + rello->r_offset); | |
4816 | addlo &= 0xffff; | |
4817 | ||
4818 | addend += ((insn & 0xffff) << 16) + addlo; | |
4819 | ||
4820 | if ((addlo & 0x8000) != 0) | |
4821 | addend -= 0x10000; | |
4822 | if ((addend & 0x8000) != 0) | |
4823 | addend += 0x10000; | |
4824 | ||
4825 | /* Get a got entry representing requested hipage. */ | |
4826 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
4827 | g = (struct mips_got_info *) elf_section_data (sgot)->tdata; | |
4828 | BFD_ASSERT (g != NULL); | |
4829 | ||
85d6f0b4 | 4830 | assigned_gotno = g->assigned_gotno; |
5b3b9ff6 ILT |
4831 | got_contents = sgot->contents; |
4832 | hipage = addend & 0xffff0000; | |
4833 | ||
85d6f0b4 | 4834 | for (i = MIPS_RESERVED_GOTNO; i < assigned_gotno; i++) |
5b3b9ff6 ILT |
4835 | { |
4836 | address = bfd_get_32 (input_bfd, got_contents + i * 4); | |
4837 | if (hipage == (address & 0xffff0000)) | |
4838 | break; | |
85d6f0b4 ILT |
4839 | } |
4840 | ||
4841 | if (i == assigned_gotno) | |
4842 | { | |
4843 | if (assigned_gotno >= g->local_gotno) | |
5b3b9ff6 | 4844 | { |
85d6f0b4 | 4845 | (*_bfd_error_handler) |
edac2b4c | 4846 | (_("more got entries are needed for hipage relocations")); |
85d6f0b4 ILT |
4847 | bfd_set_error (bfd_error_bad_value); |
4848 | return false; | |
5b3b9ff6 | 4849 | } |
5b3b9ff6 | 4850 | |
85d6f0b4 ILT |
4851 | bfd_put_32 (input_bfd, hipage, got_contents + assigned_gotno * 4); |
4852 | ++g->assigned_gotno; | |
4853 | } | |
5b3b9ff6 ILT |
4854 | |
4855 | i = - ELF_MIPS_GP_OFFSET (output_bfd) + i * 4; | |
4856 | bfd_put_32 (input_bfd, (insn & 0xffff0000) | (i & 0xffff), | |
4857 | contents + relhi->r_offset); | |
85d6f0b4 ILT |
4858 | |
4859 | return true; | |
5b3b9ff6 ILT |
4860 | } |
4861 | ||
4862 | /* Handle MIPS ELF CALL16 reloc and global GOT16 reloc. */ | |
4863 | ||
4864 | static void | |
4865 | mips_elf_relocate_global_got (input_bfd, rel, contents, offset) | |
4866 | bfd *input_bfd; | |
4867 | Elf_Internal_Rela *rel; | |
4868 | bfd_byte *contents; | |
4869 | bfd_vma offset; | |
4870 | { | |
4871 | bfd_vma insn; | |
4872 | ||
4873 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
4874 | bfd_put_32 (input_bfd, | |
4875 | (insn & 0xffff0000) | (offset & 0xffff), | |
4876 | contents + rel->r_offset); | |
4877 | } | |
4878 | ||
aac6b32f ILT |
4879 | /* Relocate a MIPS ELF section. */ |
4880 | ||
4881 | static boolean | |
4882 | mips_elf_relocate_section (output_bfd, info, input_bfd, input_section, | |
82b1edf7 | 4883 | contents, relocs, local_syms, local_sections) |
aac6b32f ILT |
4884 | bfd *output_bfd; |
4885 | struct bfd_link_info *info; | |
4886 | bfd *input_bfd; | |
4887 | asection *input_section; | |
4888 | bfd_byte *contents; | |
4889 | Elf_Internal_Rela *relocs; | |
4890 | Elf_Internal_Sym *local_syms; | |
4891 | asection **local_sections; | |
4892 | { | |
4893 | Elf_Internal_Shdr *symtab_hdr; | |
4894 | size_t locsymcount; | |
4895 | size_t extsymoff; | |
5b3b9ff6 ILT |
4896 | asection *sgot, *sreloc, *scpt; |
4897 | bfd *dynobj; | |
abec70b9 | 4898 | bfd_vma gp; |
aac6b32f ILT |
4899 | Elf_Internal_Rela *rel; |
4900 | Elf_Internal_Rela *relend; | |
5b3b9ff6 | 4901 | struct mips_got_info *g; |
aac6b32f | 4902 | |
5b3b9ff6 | 4903 | dynobj = elf_hash_table (info)->dynobj; |
aac6b32f ILT |
4904 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
4905 | ||
5b3b9ff6 ILT |
4906 | sgot = NULL; |
4907 | sreloc = NULL; | |
4908 | if (dynobj == NULL || ! SGI_COMPAT (output_bfd)) | |
4909 | scpt = NULL; | |
4910 | else | |
4911 | scpt = bfd_get_section_by_name (dynobj, ".compact_rel"); | |
4912 | g = NULL; | |
4913 | ||
aac6b32f | 4914 | if (elf_bad_symtab (input_bfd)) |
b3c0fc57 | 4915 | { |
aac6b32f ILT |
4916 | locsymcount = symtab_hdr->sh_size / sizeof (Elf32_External_Sym); |
4917 | extsymoff = 0; | |
4918 | } | |
4919 | else | |
4920 | { | |
4921 | locsymcount = symtab_hdr->sh_info; | |
4922 | extsymoff = symtab_hdr->sh_info; | |
4923 | } | |
4924 | ||
abec70b9 ILT |
4925 | gp = _bfd_get_gp_value (output_bfd); |
4926 | ||
aac6b32f ILT |
4927 | rel = relocs; |
4928 | relend = relocs + input_section->reloc_count; | |
4929 | for (; rel < relend; rel++) | |
4930 | { | |
4931 | int r_type; | |
82b1edf7 | 4932 | reloc_howto_type *howto; |
6ab826bd | 4933 | unsigned long r_symndx; |
aac6b32f ILT |
4934 | bfd_vma addend; |
4935 | struct elf_link_hash_entry *h; | |
4936 | asection *sec; | |
4937 | Elf_Internal_Sym *sym; | |
e900e695 ILT |
4938 | struct mips_elf_link_hash_entry *mh; |
4939 | int other; | |
aac6b32f ILT |
4940 | bfd_reloc_status_type r; |
4941 | ||
4942 | r_type = ELF32_R_TYPE (rel->r_info); | |
303b4cc6 RH |
4943 | if (r_type == R_MIPS_GNU_VTINHERIT |
4944 | || r_type == R_MIPS_GNU_VTENTRY) | |
4945 | continue; | |
85d6f0b4 | 4946 | if ((r_type < 0 || r_type >= (int) R_MIPS_max) |
1a85826e KR |
4947 | /* start-sanitize-r5900 */ |
4948 | && r_type != R_MIPS15_S3 | |
4949 | /* end-sanitize-r5900 */ | |
c62a82b5 DE |
4950 | /* start-sanitize-sky */ |
4951 | && r_type != R_MIPS_DVP_11_PCREL | |
edac2b4c | 4952 | && r_type != R_MIPS_DVP_27_S4 |
5e37b2da UD |
4953 | && r_type != R_MIPS_DVP_11_S4 |
4954 | && r_type != R_MIPS_DVP_U15_S3 | |
c62a82b5 | 4955 | /* end-sanitize-sky */ |
85d6f0b4 ILT |
4956 | && r_type != R_MIPS16_26 |
4957 | && r_type != R_MIPS16_GPREL) | |
6e07e54f | 4958 | { |
aac6b32f ILT |
4959 | bfd_set_error (bfd_error_bad_value); |
4960 | return false; | |
6e07e54f | 4961 | } |
85d6f0b4 | 4962 | if (r_type == R_MIPS16_26) |
e4f4813f | 4963 | howto = &elf_mips16_jump_howto; |
85d6f0b4 ILT |
4964 | else if (r_type == R_MIPS16_GPREL) |
4965 | howto = &elf_mips16_gprel_howto; | |
1a85826e KR |
4966 | /* start-sanitize-r5900 */ |
4967 | else if (r_type == R_MIPS15_S3) | |
4968 | howto = &elf_mips15_s3_howto; | |
4969 | /* end-sanitize-r5900 */ | |
c62a82b5 DE |
4970 | /* start-sanitize-sky */ |
4971 | else if (r_type == R_MIPS_DVP_11_PCREL) | |
4972 | howto = &elf_mips_dvp_11_pcrel_howto; | |
edac2b4c DE |
4973 | else if (r_type == R_MIPS_DVP_27_S4) |
4974 | howto = &elf_mips_dvp_27_s4_howto; | |
5e37b2da UD |
4975 | else if (r_type == R_MIPS_DVP_11_S4) |
4976 | howto = &elf_mips_dvp_11_s4_howto; | |
4977 | else if (r_type == R_MIPS_DVP_U15_S3) | |
4978 | howto = &elf_mips_dvp_u15_s3_howto; | |
c62a82b5 | 4979 | /* end-sanitize-sky */ |
85d6f0b4 ILT |
4980 | else |
4981 | howto = elf_mips_howto_table + r_type; | |
b3c0fc57 | 4982 | |
5b3b9ff6 ILT |
4983 | if (dynobj != NULL |
4984 | && (r_type == R_MIPS_CALL16 | |
4985 | || r_type == R_MIPS_GOT16 | |
4986 | || r_type == R_MIPS_CALL_HI16 | |
4987 | || r_type == R_MIPS_CALL_LO16 | |
4988 | || r_type == R_MIPS_GOT_HI16 | |
4989 | || r_type == R_MIPS_GOT_LO16)) | |
4990 | { | |
4991 | /* We need the .got section. */ | |
4992 | if (sgot == NULL) | |
4993 | { | |
4994 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
4995 | BFD_ASSERT (sgot != NULL); | |
4996 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
4997 | g = (struct mips_got_info *) elf_section_data (sgot)->tdata; | |
4998 | BFD_ASSERT (g != NULL); | |
4999 | } | |
5000 | } | |
5001 | ||
aac6b32f ILT |
5002 | r_symndx = ELF32_R_SYM (rel->r_info); |
5003 | ||
5004 | /* Mix in the change in GP address for a GP relative reloc. */ | |
5005 | if (r_type != R_MIPS_GPREL16 | |
5006 | && r_type != R_MIPS_LITERAL | |
85d6f0b4 ILT |
5007 | && r_type != R_MIPS_GPREL32 |
5008 | && r_type != R_MIPS16_GPREL) | |
aac6b32f ILT |
5009 | addend = 0; |
5010 | else | |
b3c0fc57 | 5011 | { |
cba3f8a9 | 5012 | if (gp == 0) |
aac6b32f ILT |
5013 | { |
5014 | if (! ((*info->callbacks->reloc_dangerous) | |
5015 | (info, | |
edac2b4c | 5016 | _("GP relative relocation when GP not defined"), |
aac6b32f ILT |
5017 | input_bfd, input_section, |
5018 | rel->r_offset))) | |
5019 | return false; | |
5020 | /* Only give the error once per link. */ | |
cba3f8a9 ILT |
5021 | gp = 4; |
5022 | _bfd_set_gp_value (output_bfd, gp); | |
aac6b32f ILT |
5023 | } |
5024 | ||
5025 | if (r_symndx < extsymoff | |
5026 | || (elf_bad_symtab (input_bfd) | |
5027 | && local_sections[r_symndx] != NULL)) | |
5028 | { | |
5029 | /* This is a relocation against a section. The current | |
5030 | addend in the instruction is the difference between | |
5031 | INPUT_SECTION->vma and the GP value of INPUT_BFD. We | |
5032 | must change this to be the difference between the | |
5033 | final definition (which will end up in RELOCATION) | |
5034 | and the GP value of OUTPUT_BFD (which is in GP). */ | |
cba3f8a9 | 5035 | addend = elf_gp (input_bfd) - gp; |
aac6b32f ILT |
5036 | } |
5037 | else if (! info->relocateable) | |
5038 | { | |
5039 | /* We are doing a final link. The current addend in the | |
5040 | instruction is simply the desired offset into the | |
5041 | symbol (normally zero). We want the instruction to | |
5042 | hold the difference between the final definition of | |
5043 | the symbol (which will end up in RELOCATION) and the | |
5044 | GP value of OUTPUT_BFD (which is in GP). */ | |
cba3f8a9 | 5045 | addend = - gp; |
aac6b32f ILT |
5046 | } |
5047 | else | |
5048 | { | |
5049 | /* We are generating relocateable output, and we aren't | |
5050 | going to define this symbol, so we just leave the | |
5051 | instruction alone. */ | |
5052 | addend = 0; | |
5053 | } | |
b3c0fc57 | 5054 | } |
b3c0fc57 | 5055 | |
aac6b32f ILT |
5056 | h = NULL; |
5057 | sym = NULL; | |
5058 | sec = NULL; | |
5059 | if (info->relocateable) | |
5060 | { | |
5061 | /* This is a relocateable link. We don't have to change | |
5062 | anything, unless the reloc is against a section symbol, | |
5063 | in which case we have to adjust according to where the | |
5064 | section symbol winds up in the output section. */ | |
5065 | if (r_symndx >= locsymcount | |
5066 | || (elf_bad_symtab (input_bfd) | |
5067 | && local_sections[r_symndx] == NULL)) | |
5068 | r = bfd_reloc_ok; | |
5069 | else | |
5070 | { | |
5071 | sym = local_syms + r_symndx; | |
5072 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
5073 | r = bfd_reloc_ok; | |
5074 | else | |
5075 | { | |
5076 | sec = local_sections[r_symndx]; | |
5077 | ||
5078 | /* It would be logical to add sym->st_value here, | |
5079 | but Irix 5 sometimes generates a garbage symbol | |
5080 | value. */ | |
5081 | addend += sec->output_offset; | |
5082 | ||
5b3b9ff6 ILT |
5083 | /* If this is HI16 or GOT16 with an associated LO16, |
5084 | adjust the addend accordingly. Otherwise, just | |
aac6b32f | 5085 | relocate. */ |
e4f4813f ILT |
5086 | if (r_type == R_MIPS_64 && bfd_big_endian (input_bfd)) |
5087 | r = _bfd_relocate_contents (howto, input_bfd, | |
5088 | addend, | |
5089 | contents + rel->r_offset + 4); | |
5090 | else if (r_type != R_MIPS_HI16 && r_type != R_MIPS_GOT16) | |
aac6b32f ILT |
5091 | r = _bfd_relocate_contents (howto, input_bfd, |
5092 | addend, | |
5093 | contents + rel->r_offset); | |
5094 | else | |
5095 | { | |
abec70b9 ILT |
5096 | Elf_Internal_Rela *lorel; |
5097 | ||
5098 | /* As a GNU extension, permit an arbitrary | |
5099 | number of R_MIPS_HI16 relocs before the | |
5100 | R_MIPS_LO16 reloc. This permits gcc to emit | |
5101 | the HI and LO relocs itself. */ | |
5102 | if (r_type == R_MIPS_GOT16) | |
5103 | lorel = rel + 1; | |
5104 | else | |
5105 | { | |
5106 | for (lorel = rel + 1; | |
5107 | (lorel < relend | |
5108 | && (ELF32_R_TYPE (lorel->r_info) | |
5109 | == R_MIPS_HI16)); | |
5110 | lorel++) | |
5111 | ; | |
5112 | } | |
5113 | if (lorel < relend | |
5114 | && ELF32_R_TYPE (lorel->r_info) == R_MIPS_LO16) | |
5115 | { | |
5116 | mips_elf_relocate_hi16 (input_bfd, rel, lorel, | |
5117 | contents, addend); | |
5118 | r = bfd_reloc_ok; | |
5119 | } | |
5120 | else | |
5121 | r = _bfd_relocate_contents (howto, input_bfd, | |
5122 | addend, | |
5123 | contents + rel->r_offset); | |
aac6b32f ILT |
5124 | } |
5125 | } | |
5126 | } | |
5127 | } | |
5128 | else | |
5129 | { | |
5130 | bfd_vma relocation; | |
5b3b9ff6 | 5131 | boolean local; |
d212bfa7 | 5132 | boolean undefined_error; |
aac6b32f ILT |
5133 | |
5134 | /* This is a final link. */ | |
d212bfa7 | 5135 | undefined_error = false; |
aac6b32f ILT |
5136 | sym = NULL; |
5137 | if (r_symndx < extsymoff | |
5138 | || (elf_bad_symtab (input_bfd) | |
5139 | && local_sections[r_symndx] != NULL)) | |
5140 | { | |
5b3b9ff6 | 5141 | local = true; |
aac6b32f ILT |
5142 | sym = local_syms + r_symndx; |
5143 | sec = local_sections[r_symndx]; | |
5144 | relocation = (sec->output_section->vma | |
5145 | + sec->output_offset); | |
5146 | ||
5147 | /* It would be logical to always add sym->st_value here, | |
5148 | but Irix 5 sometimes generates a garbage symbol | |
5149 | value. */ | |
5150 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
5151 | relocation += sym->st_value; | |
e4f4813f ILT |
5152 | |
5153 | /* mips16 text labels should be treated as odd. */ | |
5154 | if (sym->st_other == STO_MIPS16) | |
5155 | ++relocation; | |
aac6b32f ILT |
5156 | } |
5157 | else | |
5158 | { | |
5159 | long indx; | |
5160 | ||
5b3b9ff6 | 5161 | local = false; |
aac6b32f ILT |
5162 | indx = r_symndx - extsymoff; |
5163 | h = elf_sym_hashes (input_bfd)[indx]; | |
e9f03cd4 ILT |
5164 | while (h->root.type == bfd_link_hash_indirect |
5165 | || h->root.type == bfd_link_hash_warning) | |
5166 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5b3b9ff6 ILT |
5167 | if (strcmp (h->root.root.string, "_gp_disp") == 0) |
5168 | { | |
cba3f8a9 | 5169 | if (gp == 0) |
5b3b9ff6 ILT |
5170 | { |
5171 | if (! ((*info->callbacks->reloc_dangerous) | |
5172 | (info, | |
edac2b4c | 5173 | _("_gp_disp used when GP not defined"), |
5b3b9ff6 ILT |
5174 | input_bfd, input_section, |
5175 | rel->r_offset))) | |
5176 | return false; | |
5177 | /* Only give the error once per link. */ | |
cba3f8a9 ILT |
5178 | gp = 4; |
5179 | _bfd_set_gp_value (output_bfd, gp); | |
5b3b9ff6 ILT |
5180 | relocation = 0; |
5181 | } | |
5182 | else | |
5183 | { | |
5184 | sec = input_section; | |
5185 | if (sec->output_section != NULL) | |
cba3f8a9 | 5186 | relocation = (gp |
5b3b9ff6 ILT |
5187 | - (rel->r_offset |
5188 | + sec->output_section->vma | |
5189 | + sec->output_offset)); | |
5190 | else | |
cba3f8a9 | 5191 | relocation = gp - rel->r_offset; |
5b3b9ff6 ILT |
5192 | if (r_type == R_MIPS_LO16) |
5193 | relocation += 4; | |
5194 | } | |
5195 | } | |
5196 | else if (h->root.type == bfd_link_hash_defined | |
a16fcab3 | 5197 | || h->root.type == bfd_link_hash_defweak) |
aac6b32f ILT |
5198 | { |
5199 | sec = h->root.u.def.section; | |
5b3b9ff6 ILT |
5200 | if (sec->output_section == NULL) |
5201 | relocation = 0; | |
5202 | else | |
5203 | relocation = (h->root.u.def.value | |
5204 | + sec->output_section->vma | |
5205 | + sec->output_offset); | |
aac6b32f | 5206 | } |
a16fcab3 | 5207 | else if (h->root.type == bfd_link_hash_undefweak) |
aac6b32f | 5208 | relocation = 0; |
5b3b9ff6 ILT |
5209 | else if (info->shared && ! info->symbolic) |
5210 | relocation = 0; | |
53787b23 ILT |
5211 | else if (strcmp (h->root.root.string, "_DYNAMIC_LINK") == 0) |
5212 | { | |
5213 | /* If this is a dynamic link, we should have created | |
5214 | a _DYNAMIC_LINK symbol in | |
5215 | mips_elf_create_dynamic_sections. Otherwise, we | |
5216 | should define the symbol with a value of 0. | |
5217 | FIXME: It should probably get into the symbol | |
5218 | table somehow as well. */ | |
5219 | BFD_ASSERT (! info->shared); | |
5220 | BFD_ASSERT (bfd_get_section_by_name (output_bfd, | |
5221 | ".dynamic") == NULL); | |
5222 | relocation = 0; | |
5223 | } | |
aac6b32f ILT |
5224 | else |
5225 | { | |
5226 | if (! ((*info->callbacks->undefined_symbol) | |
5227 | (info, h->root.root.string, input_bfd, | |
5228 | input_section, rel->r_offset))) | |
5229 | return false; | |
d212bfa7 | 5230 | undefined_error = true; |
aac6b32f ILT |
5231 | relocation = 0; |
5232 | } | |
5233 | } | |
5234 | ||
e900e695 ILT |
5235 | mh = (struct mips_elf_link_hash_entry *) h; |
5236 | if (h != NULL) | |
5237 | other = h->other; | |
5238 | else if (sym != NULL) | |
5239 | other = sym->st_other; | |
5240 | else | |
5241 | other = 0; | |
5242 | ||
5243 | /* If this function has an fn_stub, then it is a mips16 | |
5244 | function which needs a stub if it is called by a 32 bit | |
5245 | function. If this reloc is anything other than a 16 bit | |
5246 | call, redirect the reloc to the stub. We don't redirect | |
5247 | relocs from other stub functions. */ | |
5248 | if (r_type != R_MIPS16_26 | |
5249 | && ((mh != NULL | |
5250 | && mh->fn_stub != NULL) | |
5251 | || (mh == NULL | |
5252 | && elf_tdata (input_bfd)->local_stubs != NULL | |
5253 | && elf_tdata (input_bfd)->local_stubs[r_symndx] != NULL)) | |
5254 | && strncmp (bfd_get_section_name (input_bfd, input_section), | |
5255 | FN_STUB, sizeof FN_STUB - 1) != 0 | |
5256 | && strncmp (bfd_get_section_name (input_bfd, input_section), | |
5257 | CALL_STUB, sizeof CALL_STUB - 1) != 0 | |
5258 | && strncmp (bfd_get_section_name (input_bfd, input_section), | |
5259 | CALL_FP_STUB, sizeof CALL_FP_STUB - 1) != 0) | |
5260 | { | |
5261 | if (mh != NULL) | |
5262 | { | |
5263 | BFD_ASSERT (mh->need_fn_stub); | |
5264 | relocation = (mh->fn_stub->output_section->vma | |
5265 | + mh->fn_stub->output_offset); | |
5266 | } | |
5267 | else | |
5268 | { | |
5269 | asection *fn_stub; | |
5270 | ||
5271 | fn_stub = elf_tdata (input_bfd)->local_stubs[r_symndx]; | |
5272 | relocation = (fn_stub->output_section->vma | |
5273 | + fn_stub->output_offset); | |
5274 | } | |
5275 | ||
5276 | /* RELOCATION now points to 32 bit code. */ | |
5277 | other = 0; | |
5278 | } | |
5279 | ||
5280 | /* If this function has a call_stub, then it is called by a | |
5281 | mips16 function; the call needs to go through a stub if | |
5282 | this function is a 32 bit function. If this reloc is a | |
5283 | 16 bit call, and the symbol is not a 16 bit function, | |
5284 | then redirect the reloc to the stub. Note that we don't | |
5285 | need to worry about calling the function through a | |
5286 | function pointer; such calls are handled by routing | |
5287 | through a special mips16 routine. We don't have to check | |
5288 | whether this call is from a stub; it can't be, because a | |
5289 | stub contains 32 bit code, and hence can not have a 16 | |
5290 | bit reloc. */ | |
5291 | if (r_type == R_MIPS16_26 | |
5292 | && mh != NULL | |
5293 | && (mh->call_stub != NULL || mh->call_fp_stub != NULL) | |
5294 | && other != STO_MIPS16) | |
5295 | { | |
5296 | asection *stub; | |
5297 | ||
5298 | /* If both call_stub and call_fp_stub are defined, we | |
5299 | can figure out which one to use by seeing which one | |
5300 | appears in the input file. */ | |
5301 | if (mh->call_stub != NULL && mh->call_fp_stub != NULL) | |
5302 | { | |
5303 | asection *o; | |
5304 | ||
5305 | stub = NULL; | |
5306 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
5307 | { | |
5308 | if (strncmp (bfd_get_section_name (input_bfd, o), | |
5309 | CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0) | |
5310 | { | |
5311 | stub = mh->call_fp_stub; | |
5312 | break; | |
5313 | } | |
5314 | } | |
5315 | if (stub == NULL) | |
5316 | stub = mh->call_stub; | |
5317 | } | |
5318 | else if (mh->call_stub != NULL) | |
5319 | stub = mh->call_stub; | |
5320 | else | |
5321 | stub = mh->call_fp_stub; | |
5322 | ||
5323 | BFD_ASSERT (stub->_raw_size > 0); | |
5324 | relocation = stub->output_section->vma + stub->output_offset; | |
5325 | } | |
5326 | ||
abec70b9 | 5327 | if (r_type == R_MIPS_HI16) |
aac6b32f | 5328 | { |
abec70b9 ILT |
5329 | Elf_Internal_Rela *lorel; |
5330 | ||
5331 | /* As a GNU extension, permit an arbitrary number of | |
5332 | R_MIPS_HI16 relocs before the R_MIPS_LO16 reloc. | |
5333 | This permits gcc to emit the HI and LO relocs itself. */ | |
5334 | for (lorel = rel + 1; | |
5335 | (lorel < relend | |
5336 | && ELF32_R_TYPE (lorel->r_info) == R_MIPS_HI16); | |
5337 | lorel++) | |
5338 | ; | |
5339 | if (lorel < relend | |
5340 | && ELF32_R_TYPE (lorel->r_info) == R_MIPS_LO16) | |
5341 | { | |
5342 | mips_elf_relocate_hi16 (input_bfd, rel, lorel, | |
5343 | contents, relocation + addend); | |
5344 | r = bfd_reloc_ok; | |
5345 | } | |
5346 | else | |
5347 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5348 | contents, rel->r_offset, | |
5349 | relocation, addend); | |
aac6b32f | 5350 | } |
5b3b9ff6 ILT |
5351 | else if (r_type == R_MIPS_GOT16 && local) |
5352 | { | |
abec70b9 | 5353 | /* GOT16 must also have an associated LO16 in the local |
5b3b9ff6 ILT |
5354 | case. In this case, the addend is extracted and the |
5355 | section in which the referenced object is determined. | |
5356 | Then the final address of the object is computed and | |
5357 | the GOT entry for the hipage (an aligned 64kb chunk) | |
5358 | is added to .got section if needed. The offset field | |
5359 | of the GOT16-relocated instruction is replaced by the | |
5360 | index of this GOT entry for the hipage. */ | |
5361 | if ((rel + 1) < relend | |
5362 | && ELF32_R_TYPE ((rel + 1)->r_info) == R_MIPS_LO16) | |
5363 | { | |
85d6f0b4 ILT |
5364 | if (! mips_elf_relocate_got_local (output_bfd, input_bfd, |
5365 | sgot, rel, rel + 1, | |
5366 | contents, | |
5367 | relocation + addend)) | |
5368 | return false; | |
5b3b9ff6 ILT |
5369 | r = bfd_reloc_ok; |
5370 | } | |
5371 | else | |
5372 | r = bfd_reloc_outofrange; | |
5373 | } | |
5374 | else if (r_type == R_MIPS_CALL16 | |
5375 | || r_type == R_MIPS_GOT16 | |
5376 | || r_type == R_MIPS_CALL_LO16 | |
5377 | || r_type == R_MIPS_GOT_LO16) | |
5378 | { | |
5379 | bfd_vma offset; | |
5380 | ||
5381 | /* This symbol must be registered as a global symbol | |
5382 | having the corresponding got entry. */ | |
303b4cc6 | 5383 | BFD_ASSERT (h->got.offset != (bfd_vma) -1); |
5b3b9ff6 ILT |
5384 | |
5385 | offset = (h->dynindx - g->global_gotsym + g->local_gotno) * 4; | |
5386 | BFD_ASSERT (g->local_gotno <= offset | |
5387 | && offset < sgot->_raw_size); | |
5388 | bfd_put_32 (output_bfd, relocation + addend, | |
5389 | sgot->contents + offset); | |
5390 | offset = (sgot->output_section->vma + sgot->output_offset | |
cba3f8a9 | 5391 | + offset - gp); |
5b3b9ff6 ILT |
5392 | mips_elf_relocate_global_got (input_bfd, rel, contents, |
5393 | offset); | |
5394 | r = bfd_reloc_ok; | |
5395 | } | |
5396 | else if (r_type == R_MIPS_CALL_HI16 | |
5397 | || r_type == R_MIPS_GOT_HI16) | |
5398 | { | |
5399 | bfd_vma offset; | |
5400 | ||
5401 | /* This must be a global symbol with a got entry. The | |
5402 | next reloc must be the corresponding LO16 reloc. */ | |
303b4cc6 | 5403 | BFD_ASSERT (h != NULL && h->got.offset != (bfd_vma) -1); |
5b3b9ff6 | 5404 | BFD_ASSERT ((rel + 1) < relend); |
edac2b4c | 5405 | BFD_ASSERT ((int) ELF32_R_TYPE ((rel + 1)->r_info) |
5b3b9ff6 | 5406 | == (r_type == R_MIPS_CALL_HI16 |
edac2b4c DE |
5407 | ? (int) R_MIPS_CALL_LO16 |
5408 | : (int) R_MIPS_GOT_LO16)); | |
5b3b9ff6 ILT |
5409 | |
5410 | offset = (h->dynindx - g->global_gotsym + g->local_gotno) * 4; | |
5411 | BFD_ASSERT (g->local_gotno <= offset | |
5412 | && offset < sgot->_raw_size); | |
5413 | bfd_put_32 (output_bfd, relocation + addend, | |
5414 | sgot->contents + offset); | |
5415 | offset = (sgot->output_section->vma + sgot->output_offset | |
cba3f8a9 | 5416 | + offset - gp); |
5b3b9ff6 ILT |
5417 | mips_elf_relocate_hi16 (input_bfd, rel, rel + 1, contents, |
5418 | offset); | |
5419 | r = bfd_reloc_ok; | |
5420 | } | |
5421 | else if (r_type == R_MIPS_REL32 | |
5422 | || r_type == R_MIPS_32) | |
5423 | { | |
5424 | Elf_Internal_Rel outrel; | |
5425 | Elf32_crinfo cptrel; | |
5426 | bfd_byte *cr; | |
5427 | ||
abec70b9 | 5428 | if ((info->shared |
9b292d4c ILT |
5429 | || (elf_hash_table (info)->dynamic_sections_created |
5430 | && h != NULL | |
abec70b9 ILT |
5431 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) |
5432 | == 0))) | |
5b3b9ff6 ILT |
5433 | && (input_section->flags & SEC_ALLOC) != 0) |
5434 | { | |
ab66cc8d ILT |
5435 | boolean skip; |
5436 | ||
5b3b9ff6 ILT |
5437 | /* When generating a shared object, these |
5438 | relocations are copied into the output file to be | |
5439 | resolved at run time. */ | |
5440 | if (sreloc == NULL) | |
5441 | { | |
5442 | sreloc = bfd_get_section_by_name (dynobj, ".rel.dyn"); | |
5443 | BFD_ASSERT (sreloc != NULL); | |
5444 | } | |
5445 | ||
ab66cc8d ILT |
5446 | skip = false; |
5447 | ||
5448 | if (elf_section_data (input_section)->stab_info == NULL) | |
5449 | outrel.r_offset = rel->r_offset; | |
5450 | else | |
5451 | { | |
5452 | bfd_vma off; | |
5453 | ||
5454 | off = (_bfd_stab_section_offset | |
5455 | (output_bfd, &elf_hash_table (info)->stab_info, | |
5456 | input_section, | |
5457 | &elf_section_data (input_section)->stab_info, | |
5458 | rel->r_offset)); | |
5459 | if (off == (bfd_vma) -1) | |
5460 | skip = true; | |
5461 | outrel.r_offset = off; | |
5462 | } | |
5463 | ||
5464 | outrel.r_offset += (input_section->output_section->vma | |
5465 | + input_section->output_offset); | |
5b3b9ff6 ILT |
5466 | |
5467 | addend = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
5468 | ||
ab66cc8d ILT |
5469 | if (skip) |
5470 | memset (&outrel, 0, sizeof outrel); | |
5471 | else if (h != NULL | |
5472 | && (! info->symbolic | |
5473 | || (h->elf_link_hash_flags | |
5474 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
5b3b9ff6 ILT |
5475 | { |
5476 | BFD_ASSERT (h->dynindx != -1); | |
5477 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_MIPS_REL32); | |
5478 | sec = input_section; | |
5479 | } | |
5480 | else | |
5481 | { | |
5482 | long indx; | |
5483 | ||
53787b23 ILT |
5484 | if (h == NULL) |
5485 | sec = local_sections[r_symndx]; | |
5486 | else | |
5487 | { | |
5488 | BFD_ASSERT (h->root.type == bfd_link_hash_defined | |
5489 | || (h->root.type | |
5490 | == bfd_link_hash_defweak)); | |
5491 | sec = h->root.u.def.section; | |
5492 | } | |
5b3b9ff6 ILT |
5493 | if (sec != NULL && bfd_is_abs_section (sec)) |
5494 | indx = 0; | |
5495 | else if (sec == NULL || sec->owner == NULL) | |
5496 | { | |
5497 | bfd_set_error (bfd_error_bad_value); | |
5498 | return false; | |
5499 | } | |
5500 | else | |
5501 | { | |
5502 | asection *osec; | |
5503 | ||
5504 | osec = sec->output_section; | |
5505 | indx = elf_section_data (osec)->dynindx; | |
5506 | if (indx == 0) | |
5507 | abort (); | |
5508 | } | |
5509 | ||
5510 | outrel.r_info = ELF32_R_INFO (indx, R_MIPS_REL32); | |
5511 | addend += relocation; | |
5512 | } | |
5513 | ||
ab66cc8d ILT |
5514 | if (! skip) |
5515 | bfd_put_32 (output_bfd, addend, contents + rel->r_offset); | |
5516 | ||
5b3b9ff6 ILT |
5517 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, |
5518 | (((Elf32_External_Rel *) | |
5519 | sreloc->contents) | |
5520 | + sreloc->reloc_count)); | |
5521 | ++sreloc->reloc_count; | |
5522 | ||
ab66cc8d | 5523 | if (! skip && SGI_COMPAT (output_bfd)) |
5b3b9ff6 ILT |
5524 | { |
5525 | if (scpt == NULL) | |
5526 | continue; | |
5527 | ||
5528 | /* Make an entry of compact relocation info. */ | |
5529 | mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG); | |
5530 | cptrel.vaddr = (rel->r_offset | |
5531 | + input_section->output_section->vma | |
5532 | + input_section->output_offset); | |
5533 | if (r_type == R_MIPS_REL32) | |
5534 | mips_elf_set_cr_type (cptrel, CRT_MIPS_REL32); | |
5535 | else | |
5536 | mips_elf_set_cr_type (cptrel, CRT_MIPS_WORD); | |
53787b23 | 5537 | mips_elf_set_cr_dist2to (cptrel, 0); |
5b3b9ff6 ILT |
5538 | cptrel.konst = addend; |
5539 | ||
5540 | cr = (scpt->contents | |
5541 | + sizeof (Elf32_External_compact_rel)); | |
5542 | bfd_elf32_swap_crinfo_out (output_bfd, &cptrel, | |
5543 | ((Elf32_External_crinfo *) cr | |
5544 | + scpt->reloc_count)); | |
5545 | ++scpt->reloc_count; | |
5546 | } | |
5547 | ||
5548 | /* This reloc will be computed at runtime, so | |
5549 | there's no need to do anything now. */ | |
5550 | continue; | |
5551 | } | |
5552 | else | |
5553 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5554 | contents, rel->r_offset, | |
5555 | relocation, addend); | |
5556 | } | |
e4f4813f ILT |
5557 | else if (r_type == R_MIPS_64) |
5558 | { | |
5559 | bfd_size_type addr; | |
5560 | unsigned long val; | |
5561 | ||
5562 | /* Do a 32 bit relocation, and sign extend to 64 bits. */ | |
5563 | addr = rel->r_offset; | |
5564 | if (bfd_big_endian (input_bfd)) | |
5565 | addr += 4; | |
5566 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5567 | contents, addr, relocation, | |
5568 | addend); | |
5569 | val = bfd_get_32 (input_bfd, contents + addr); | |
5570 | if ((val & 0x80000000) != 0) | |
5571 | val = 0xffffffff; | |
5572 | else | |
5573 | val = 0; | |
5574 | addr = rel->r_offset; | |
5575 | if (bfd_little_endian (input_bfd)) | |
5576 | addr += 4; | |
5577 | bfd_put_32 (input_bfd, val, contents + addr); | |
5578 | } | |
e900e695 | 5579 | else if (r_type == R_MIPS_26 && other == STO_MIPS16) |
e4f4813f ILT |
5580 | { |
5581 | unsigned long insn; | |
5582 | ||
5583 | /* This is a jump to a mips16 routine from a mips32 | |
5584 | routine. We need to change jal into jalx. */ | |
5585 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
5586 | if (((insn >> 26) & 0x3f) != 0x3 | |
5587 | && ((insn >> 26) & 0x3f) != 0x1d) | |
5588 | { | |
5589 | (*_bfd_error_handler) | |
edac2b4c | 5590 | (_("%s: %s+0x%lx: jump to mips16 routine which is not jal"), |
e4f4813f ILT |
5591 | bfd_get_filename (input_bfd), |
5592 | input_section->name, | |
5593 | (unsigned long) rel->r_offset); | |
5594 | bfd_set_error (bfd_error_bad_value); | |
5595 | return false; | |
5596 | } | |
5597 | insn = (insn & 0x3ffffff) | (0x1d << 26); | |
5598 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
5599 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5600 | contents, rel->r_offset, | |
5601 | relocation, addend); | |
5602 | } | |
5603 | else if (r_type == R_MIPS16_26) | |
5604 | { | |
5605 | /* It's easiest to do the normal relocation, and then | |
5606 | dig out the instruction and swap the first word the | |
7d996a75 ILT |
5607 | way the mips16 expects it. If this is little endian, |
5608 | though, we need to swap the two words first, and then | |
5609 | swap them back again later, so that the address looks | |
5610 | right. */ | |
5611 | ||
5612 | if (bfd_little_endian (input_bfd)) | |
5613 | { | |
5614 | unsigned long insn; | |
5615 | ||
5616 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
5617 | insn = ((insn >> 16) & 0xffff) | ((insn & 0xffff) << 16); | |
5618 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
5619 | } | |
5620 | ||
e4f4813f ILT |
5621 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
5622 | contents, rel->r_offset, | |
5623 | relocation, addend); | |
5624 | if (r == bfd_reloc_ok) | |
5625 | { | |
5626 | unsigned long insn; | |
5627 | ||
7d996a75 ILT |
5628 | if (bfd_little_endian (input_bfd)) |
5629 | { | |
5630 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
5631 | insn = ((insn >> 16) & 0xffff) | ((insn & 0xffff) << 16); | |
5632 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
5633 | } | |
5634 | ||
e4f4813f ILT |
5635 | insn = bfd_get_16 (input_bfd, contents + rel->r_offset); |
5636 | insn = ((insn & 0xfc00) | |
5637 | | ((insn & 0x1f) << 5) | |
5638 | | ((insn & 0x3e0) >> 5)); | |
5639 | /* If this is a jump to a 32 bit routine, then make | |
5640 | it jalx. */ | |
e900e695 | 5641 | if (other != STO_MIPS16) |
e4f4813f ILT |
5642 | insn |= 0x400; |
5643 | bfd_put_16 (input_bfd, insn, contents + rel->r_offset); | |
5644 | } | |
5645 | } | |
85d6f0b4 ILT |
5646 | else if (r_type == R_MIPS16_GPREL) |
5647 | { | |
5648 | unsigned short extend, insn; | |
5649 | bfd_byte buf[4]; | |
5650 | unsigned long final; | |
5651 | ||
5652 | /* Extract the addend into buf, run the regular reloc, | |
5653 | and stuff the resulting value back into the | |
5654 | instructions. */ | |
5655 | if (rel->r_offset > input_section->_raw_size) | |
5656 | r = bfd_reloc_outofrange; | |
5657 | else | |
5658 | { | |
5659 | extend = bfd_get_16 (input_bfd, contents + rel->r_offset); | |
5660 | insn = bfd_get_16 (input_bfd, contents + rel->r_offset + 2); | |
5661 | bfd_put_32 (input_bfd, | |
5662 | (((extend & 0x1f) << 11) | |
5663 | | (extend & 0x7e0) | |
5664 | | (insn & 0x1f)), | |
5665 | buf); | |
5666 | r = _bfd_final_link_relocate (howto, input_bfd, | |
5667 | input_section, buf, | |
5668 | (bfd_vma) 0, relocation, | |
5669 | addend); | |
5670 | final = bfd_get_32 (input_bfd, buf); | |
5671 | bfd_put_16 (input_bfd, | |
5672 | ((extend & 0xf800) | |
5673 | | ((final >> 11) & 0x1f) | |
5674 | | (final & 0x7e0)), | |
5675 | contents + rel->r_offset); | |
5676 | bfd_put_16 (input_bfd, | |
5677 | ((insn & 0xffe0) | |
5678 | | (final & 0x1f)), | |
5679 | contents + rel->r_offset + 2); | |
5680 | } | |
5681 | } | |
5e37b2da UD |
5682 | /* start-sanitize-sky */ |
5683 | else if (r_type == R_MIPS_DVP_U15_S3) | |
5684 | { | |
5685 | if (rel->r_offset > input_section->_raw_size) | |
5686 | r = bfd_reloc_outofrange; | |
5687 | else | |
5688 | { | |
5689 | bfd_vma x; | |
5690 | ||
5691 | relocation += rel->r_addend; | |
5692 | relocation >>= 3; | |
5693 | ||
5694 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
5695 | relocation += ((x & (0xf << 21)) >> 10) + (x & 0x7ff); | |
5696 | x &= ~ ((0xf << 21) | 0x7ff); | |
5697 | x |= (((relocation & 0x7800) << 10) | |
5698 | | (relocation & 0x7ff)); | |
5699 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
5700 | ||
5701 | if (relocation & ~ (bfd_vma) 0x7fff) | |
5702 | r = bfd_reloc_overflow; | |
5703 | else | |
5704 | r = bfd_reloc_ok; | |
5705 | } | |
5706 | } | |
5707 | /* end-sanitize-sky */ | |
5b3b9ff6 ILT |
5708 | else |
5709 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5710 | contents, rel->r_offset, | |
5711 | relocation, addend); | |
5712 | ||
85d6f0b4 ILT |
5713 | /* The jal instruction can only jump to an address which is |
5714 | divisible by 4, and it can only jump to an address with | |
5715 | the same upper 4 bits as the PC. */ | |
5716 | if (r == bfd_reloc_ok | |
5717 | && (r_type == R_MIPS16_26 || r_type == R_MIPS_26)) | |
5718 | { | |
5719 | bfd_vma addr; | |
5720 | ||
5721 | addr = relocation; | |
5722 | if (other == STO_MIPS16) | |
5723 | addr &= ~ (bfd_vma) 1; | |
5724 | addr += addend; | |
5725 | if ((addr & 3) != 0 | |
5726 | || ((addr & 0xf0000000) | |
5727 | != ((input_section->output_section->vma | |
5728 | + input_section->output_offset | |
5729 | + rel->r_offset) | |
5730 | & 0xf0000000))) | |
5731 | r = bfd_reloc_overflow; | |
5732 | } | |
5733 | ||
edac2b4c DE |
5734 | /* Don't bother to report a relocation overflow for a call |
5735 | to a weak undefined symbol with a value of zero. This | |
5736 | permits us to use | |
5737 | if (!f) f(); | |
5738 | even if we aren't in range to call address zero. */ | |
5739 | if (r == bfd_reloc_overflow | |
5740 | && (r_type == R_MIPS16_26 || r_type == R_MIPS_26) | |
5741 | && relocation + addend == 0 | |
5742 | && h != NULL | |
5743 | && h->root.type == bfd_link_hash_undefweak) | |
5744 | r = bfd_reloc_ok; | |
5745 | ||
d212bfa7 ILT |
5746 | /* If we've already issued an error for an undefined symbol, |
5747 | don't issue another useless error. */ | |
5748 | if (undefined_error | |
5749 | && (r == bfd_reloc_undefined || r == bfd_reloc_overflow)) | |
5750 | r = bfd_reloc_ok; | |
5751 | ||
5b3b9ff6 ILT |
5752 | if (SGI_COMPAT (abfd) |
5753 | && scpt != NULL | |
5754 | && (input_section->flags & SEC_ALLOC) != 0) | |
5755 | { | |
5756 | Elf32_crinfo cptrel; | |
5757 | bfd_byte *cr; | |
5758 | ||
5759 | /* Make an entry of compact relocation info. */ | |
5760 | mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG); | |
5761 | cptrel.vaddr = (rel->r_offset | |
5762 | + input_section->output_section->vma | |
5763 | + input_section->output_offset); | |
5764 | ||
5765 | switch (r_type) | |
5766 | { | |
5767 | case R_MIPS_26: | |
5768 | mips_elf_set_cr_type (cptrel, CRT_MIPS_JMPAD); | |
53787b23 ILT |
5769 | /* XXX How should we set dist2to in this case. */ |
5770 | mips_elf_set_cr_dist2to (cptrel, 8); | |
5771 | cptrel.konst = addend + relocation; | |
5b3b9ff6 ILT |
5772 | cr = scpt->contents + sizeof (Elf32_External_compact_rel); |
5773 | bfd_elf32_swap_crinfo_out (output_bfd, &cptrel, | |
5774 | ((Elf32_External_crinfo *) cr | |
5775 | + scpt->reloc_count)); | |
5776 | ++scpt->reloc_count; | |
5777 | break; | |
5778 | ||
5779 | case R_MIPS_GPREL16: | |
5780 | case R_MIPS_LITERAL: | |
5781 | case R_MIPS_GPREL32: | |
5782 | mips_elf_set_cr_type (cptrel, CRT_MIPS_GPHI_LO); | |
cba3f8a9 | 5783 | cptrel.konst = gp - cptrel.vaddr; |
53787b23 | 5784 | mips_elf_set_cr_dist2to (cptrel, 4); |
5b3b9ff6 ILT |
5785 | cr = scpt->contents + sizeof (Elf32_External_compact_rel); |
5786 | bfd_elf32_swap_crinfo_out (output_bfd, &cptrel, | |
5787 | ((Elf32_External_crinfo *) cr | |
5788 | + scpt->reloc_count)); | |
5789 | ++scpt->reloc_count; | |
5790 | break; | |
5791 | ||
5792 | default: | |
5793 | break; | |
5794 | } | |
5795 | } | |
aac6b32f ILT |
5796 | } |
5797 | ||
5798 | if (r != bfd_reloc_ok) | |
5799 | { | |
5800 | switch (r) | |
5801 | { | |
5802 | default: | |
5803 | case bfd_reloc_outofrange: | |
5804 | abort (); | |
5805 | case bfd_reloc_overflow: | |
5806 | { | |
5807 | const char *name; | |
5808 | ||
5809 | if (h != NULL) | |
5810 | name = h->root.root.string; | |
5811 | else | |
5812 | { | |
ede4eed4 KR |
5813 | name = bfd_elf_string_from_elf_section (input_bfd, |
5814 | symtab_hdr->sh_link, | |
5815 | sym->st_name); | |
aac6b32f ILT |
5816 | if (name == NULL) |
5817 | return false; | |
5818 | if (*name == '\0') | |
5819 | name = bfd_section_name (input_bfd, sec); | |
5820 | } | |
5821 | if (! ((*info->callbacks->reloc_overflow) | |
5822 | (info, name, howto->name, (bfd_vma) 0, | |
5823 | input_bfd, input_section, rel->r_offset))) | |
5824 | return false; | |
5825 | } | |
5826 | break; | |
5827 | } | |
5828 | } | |
b3c0fc57 | 5829 | } |
aac6b32f ILT |
5830 | |
5831 | return true; | |
b3c0fc57 | 5832 | } |
e4f4813f ILT |
5833 | |
5834 | /* This hook function is called before the linker writes out a global | |
8211c929 ILT |
5835 | symbol. We mark symbols as small common if appropriate. This is |
5836 | also where we undo the increment of the value for a mips16 symbol. */ | |
e4f4813f ILT |
5837 | |
5838 | /*ARGSIGNORED*/ | |
5839 | static boolean | |
5840 | mips_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec) | |
5841 | bfd *abfd; | |
5842 | struct bfd_link_info *info; | |
5843 | const char *name; | |
5844 | Elf_Internal_Sym *sym; | |
5845 | asection *input_sec; | |
5846 | { | |
8211c929 ILT |
5847 | /* If we see a common symbol, which implies a relocatable link, then |
5848 | if a symbol was small common in an input file, mark it as small | |
5849 | common in the output file. */ | |
5850 | if (sym->st_shndx == SHN_COMMON | |
5851 | && strcmp (input_sec->name, ".scommon") == 0) | |
5852 | sym->st_shndx = SHN_MIPS_SCOMMON; | |
5853 | ||
e4f4813f ILT |
5854 | if (sym->st_other == STO_MIPS16 |
5855 | && (sym->st_value & 1) != 0) | |
5856 | --sym->st_value; | |
8211c929 | 5857 | |
e4f4813f ILT |
5858 | return true; |
5859 | } | |
b3c0fc57 | 5860 | \f |
5b3b9ff6 ILT |
5861 | /* Functions for the dynamic linker. */ |
5862 | ||
5863 | /* The name of the dynamic interpreter. This is put in the .interp | |
5864 | section. */ | |
5865 | ||
5866 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
5867 | ||
5868 | /* Create dynamic sections when linking against a dynamic object. */ | |
5b3b9ff6 ILT |
5869 | |
5870 | static boolean | |
5871 | mips_elf_create_dynamic_sections (abfd, info) | |
a16fcab3 | 5872 | bfd *abfd; |
5b3b9ff6 | 5873 | struct bfd_link_info *info; |
a16fcab3 | 5874 | { |
5b3b9ff6 ILT |
5875 | struct elf_link_hash_entry *h; |
5876 | flagword flags; | |
5877 | register asection *s; | |
5878 | const char * const *namep; | |
a16fcab3 | 5879 | |
5b3b9ff6 | 5880 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
ff12f303 | 5881 | | SEC_LINKER_CREATED | SEC_READONLY); |
a16fcab3 | 5882 | |
5b3b9ff6 ILT |
5883 | /* Mips ABI requests the .dynamic section to be read only. */ |
5884 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
5885 | if (s != NULL) | |
5886 | { | |
5887 | if (! bfd_set_section_flags (abfd, s, flags)) | |
5888 | return false; | |
5889 | } | |
a16fcab3 | 5890 | |
5b3b9ff6 ILT |
5891 | /* We need to create .got section. */ |
5892 | if (! mips_elf_create_got_section (abfd, info)) | |
5893 | return false; | |
5894 | ||
5895 | /* Create .stub section. */ | |
5896 | if (bfd_get_section_by_name (abfd, ".stub") == NULL) | |
a16fcab3 | 5897 | { |
5b3b9ff6 ILT |
5898 | s = bfd_make_section (abfd, ".stub"); |
5899 | if (s == NULL | |
5900 | || ! bfd_set_section_flags (abfd, s, flags) | |
5901 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
5902 | return false; | |
5903 | } | |
5904 | ||
eb52b9dc ILT |
5905 | if (SGI_COMPAT (abfd) |
5906 | && !info->shared | |
5907 | && bfd_get_section_by_name (abfd, ".rld_map") == NULL) | |
5908 | { | |
5909 | s = bfd_make_section (abfd, ".rld_map"); | |
5910 | if (s == NULL | |
5911 | || ! bfd_set_section_flags (abfd, s, flags & ~SEC_READONLY) | |
5912 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
5913 | return false; | |
5914 | } | |
5915 | ||
5b3b9ff6 ILT |
5916 | if (SGI_COMPAT (abfd)) |
5917 | { | |
5918 | for (namep = mips_elf_dynsym_rtproc_names; *namep != NULL; namep++) | |
5919 | { | |
5920 | h = NULL; | |
5921 | if (! (_bfd_generic_link_add_one_symbol | |
5922 | (info, abfd, *namep, BSF_GLOBAL, bfd_und_section_ptr, | |
5923 | (bfd_vma) 0, (const char *) NULL, false, | |
5924 | get_elf_backend_data (abfd)->collect, | |
5925 | (struct bfd_link_hash_entry **) &h))) | |
5926 | return false; | |
e9f03cd4 | 5927 | h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; |
5b3b9ff6 ILT |
5928 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; |
5929 | h->type = STT_SECTION; | |
5930 | ||
53787b23 | 5931 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
5b3b9ff6 ILT |
5932 | return false; |
5933 | } | |
5934 | ||
53787b23 ILT |
5935 | /* We need to create a .compact_rel section. */ |
5936 | if (! mips_elf_create_compact_rel_section (abfd, info)) | |
5937 | return false; | |
5b3b9ff6 ILT |
5938 | |
5939 | /* Change aligments of some sections. */ | |
5940 | s = bfd_get_section_by_name (abfd, ".hash"); | |
5941 | if (s != NULL) | |
5942 | bfd_set_section_alignment (abfd, s, 4); | |
5943 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
5944 | if (s != NULL) | |
5945 | bfd_set_section_alignment (abfd, s, 4); | |
5946 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
5947 | if (s != NULL) | |
5948 | bfd_set_section_alignment (abfd, s, 4); | |
5949 | s = bfd_get_section_by_name (abfd, ".reginfo"); | |
5950 | if (s != NULL) | |
5951 | bfd_set_section_alignment (abfd, s, 4); | |
5952 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
5953 | if (s != NULL) | |
5954 | bfd_set_section_alignment (abfd, s, 4); | |
a16fcab3 KR |
5955 | } |
5956 | ||
53787b23 ILT |
5957 | if (!info->shared) |
5958 | { | |
5959 | h = NULL; | |
5960 | if (! (_bfd_generic_link_add_one_symbol | |
5961 | (info, abfd, "_DYNAMIC_LINK", BSF_GLOBAL, bfd_abs_section_ptr, | |
5962 | (bfd_vma) 0, (const char *) NULL, false, | |
5963 | get_elf_backend_data (abfd)->collect, | |
5964 | (struct bfd_link_hash_entry **) &h))) | |
5965 | return false; | |
7d996a75 | 5966 | h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; |
53787b23 ILT |
5967 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; |
5968 | h->type = STT_SECTION; | |
5969 | ||
5970 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
5971 | return false; | |
eb52b9dc ILT |
5972 | |
5973 | if (! mips_elf_hash_table (info)->use_rld_obj_head) | |
5974 | { | |
5975 | /* __rld_map is a four byte word located in the .data section | |
5976 | and is filled in by the rtld to contain a pointer to | |
5977 | the _r_debug structure. Its symbol value will be set in | |
5978 | mips_elf_finish_dynamic_symbol. */ | |
5979 | s = bfd_get_section_by_name (abfd, ".rld_map"); | |
5980 | BFD_ASSERT (s != NULL); | |
5981 | ||
5982 | h = NULL; | |
5983 | if (! (_bfd_generic_link_add_one_symbol | |
5984 | (info, abfd, "__rld_map", BSF_GLOBAL, s, | |
5985 | (bfd_vma) 0, (const char *) NULL, false, | |
5986 | get_elf_backend_data (abfd)->collect, | |
5987 | (struct bfd_link_hash_entry **) &h))) | |
5988 | return false; | |
5989 | h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; | |
5990 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
5991 | h->type = STT_OBJECT; | |
5992 | ||
5993 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
5994 | return false; | |
5995 | } | |
53787b23 ILT |
5996 | } |
5997 | ||
5b3b9ff6 ILT |
5998 | return true; |
5999 | } | |
6000 | ||
53787b23 ILT |
6001 | /* Create the .compact_rel section. */ |
6002 | ||
6003 | static boolean | |
6004 | mips_elf_create_compact_rel_section (abfd, info) | |
6005 | bfd *abfd; | |
6006 | struct bfd_link_info *info; | |
6007 | { | |
6008 | flagword flags; | |
6009 | register asection *s; | |
6010 | ||
6011 | if (bfd_get_section_by_name (abfd, ".compact_rel") == NULL) | |
6012 | { | |
ff12f303 ILT |
6013 | flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED |
6014 | | SEC_READONLY); | |
53787b23 ILT |
6015 | |
6016 | s = bfd_make_section (abfd, ".compact_rel"); | |
6017 | if (s == NULL | |
6018 | || ! bfd_set_section_flags (abfd, s, flags) | |
6019 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
6020 | return false; | |
6021 | ||
6022 | s->_raw_size = sizeof (Elf32_External_compact_rel); | |
6023 | } | |
6024 | ||
6025 | return true; | |
6026 | } | |
ff12f303 | 6027 | |
5b3b9ff6 ILT |
6028 | /* Create the .got section to hold the global offset table. */ |
6029 | ||
6030 | static boolean | |
6031 | mips_elf_create_got_section (abfd, info) | |
6032 | bfd *abfd; | |
6033 | struct bfd_link_info *info; | |
6034 | { | |
6035 | flagword flags; | |
6036 | register asection *s; | |
6037 | struct elf_link_hash_entry *h; | |
6038 | struct mips_got_info *g; | |
6039 | ||
6040 | /* This function may be called more than once. */ | |
6041 | if (bfd_get_section_by_name (abfd, ".got") != NULL) | |
6042 | return true; | |
6043 | ||
ff12f303 ILT |
6044 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
6045 | | SEC_LINKER_CREATED); | |
5b3b9ff6 ILT |
6046 | |
6047 | s = bfd_make_section (abfd, ".got"); | |
6048 | if (s == NULL | |
6049 | || ! bfd_set_section_flags (abfd, s, flags) | |
6050 | || ! bfd_set_section_alignment (abfd, s, 4)) | |
6051 | return false; | |
6052 | ||
6053 | /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the | |
6054 | linker script because we don't want to define the symbol if we | |
53787b23 | 6055 | are not creating a global offset table. */ |
5b3b9ff6 ILT |
6056 | h = NULL; |
6057 | if (! (_bfd_generic_link_add_one_symbol | |
6058 | (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, | |
6059 | (bfd_vma) 0, (const char *) NULL, false, | |
6060 | get_elf_backend_data (abfd)->collect, | |
6061 | (struct bfd_link_hash_entry **) &h))) | |
6062 | return false; | |
e9f03cd4 | 6063 | h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; |
5b3b9ff6 ILT |
6064 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; |
6065 | h->type = STT_OBJECT; | |
6066 | ||
6067 | if (info->shared | |
6068 | && ! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
6069 | return false; | |
6070 | ||
6071 | /* The first several global offset table entries are reserved. */ | |
6072 | s->_raw_size = MIPS_RESERVED_GOTNO * 4; | |
6073 | ||
6074 | g = (struct mips_got_info *) bfd_alloc (abfd, | |
6075 | sizeof (struct mips_got_info)); | |
6076 | if (g == NULL) | |
6077 | return false; | |
6078 | g->global_gotsym = 0; | |
6079 | g->local_gotno = MIPS_RESERVED_GOTNO; | |
85d6f0b4 | 6080 | g->assigned_gotno = MIPS_RESERVED_GOTNO; |
5b3b9ff6 ILT |
6081 | if (elf_section_data (s) == NULL) |
6082 | { | |
6083 | s->used_by_bfd = | |
6084 | (PTR) bfd_zalloc (abfd, sizeof (struct bfd_elf_section_data)); | |
6085 | if (elf_section_data (s) == NULL) | |
6086 | return false; | |
6087 | } | |
6088 | elf_section_data (s)->tdata = (PTR) g; | |
6089 | ||
6090 | return true; | |
6091 | } | |
6092 | ||
6093 | /* Look through the relocs for a section during the first phase, and | |
6094 | allocate space in the global offset table. */ | |
6095 | ||
6096 | static boolean | |
6097 | mips_elf_check_relocs (abfd, info, sec, relocs) | |
6098 | bfd *abfd; | |
6099 | struct bfd_link_info *info; | |
6100 | asection *sec; | |
6101 | const Elf_Internal_Rela *relocs; | |
6102 | { | |
e900e695 | 6103 | const char *name; |
5b3b9ff6 ILT |
6104 | bfd *dynobj; |
6105 | Elf_Internal_Shdr *symtab_hdr; | |
6106 | struct elf_link_hash_entry **sym_hashes; | |
6107 | struct mips_got_info *g; | |
6108 | size_t extsymoff; | |
6109 | const Elf_Internal_Rela *rel; | |
6110 | const Elf_Internal_Rela *rel_end; | |
6111 | asection *sgot; | |
6112 | asection *sreloc; | |
5b3b9ff6 ILT |
6113 | |
6114 | if (info->relocateable) | |
6115 | return true; | |
6116 | ||
6117 | dynobj = elf_hash_table (info)->dynobj; | |
6118 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
6119 | sym_hashes = elf_sym_hashes (abfd); | |
6120 | extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info; | |
6121 | ||
e900e695 ILT |
6122 | /* Check for the mips16 stub sections. */ |
6123 | ||
6124 | name = bfd_get_section_name (abfd, sec); | |
6125 | if (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0) | |
6126 | { | |
6127 | unsigned long r_symndx; | |
6128 | ||
6129 | /* Look at the relocation information to figure out which symbol | |
6130 | this is for. */ | |
6131 | ||
6132 | r_symndx = ELF32_R_SYM (relocs->r_info); | |
6133 | ||
6134 | if (r_symndx < extsymoff | |
6135 | || sym_hashes[r_symndx - extsymoff] == NULL) | |
6136 | { | |
6137 | asection *o; | |
6138 | ||
6139 | /* This stub is for a local symbol. This stub will only be | |
6140 | needed if there is some relocation in this BFD, other | |
6141 | than a 16 bit function call, which refers to this symbol. */ | |
6142 | for (o = abfd->sections; o != NULL; o = o->next) | |
6143 | { | |
6144 | Elf_Internal_Rela *sec_relocs; | |
6145 | const Elf_Internal_Rela *r, *rend; | |
6146 | ||
6147 | /* We can ignore stub sections when looking for relocs. */ | |
6148 | if ((o->flags & SEC_RELOC) == 0 | |
6149 | || o->reloc_count == 0 | |
6150 | || strncmp (bfd_get_section_name (abfd, o), FN_STUB, | |
6151 | sizeof FN_STUB - 1) == 0 | |
6152 | || strncmp (bfd_get_section_name (abfd, o), CALL_STUB, | |
6153 | sizeof CALL_STUB - 1) == 0 | |
6154 | || strncmp (bfd_get_section_name (abfd, o), CALL_FP_STUB, | |
6155 | sizeof CALL_FP_STUB - 1) == 0) | |
6156 | continue; | |
6157 | ||
6158 | sec_relocs = (_bfd_elf32_link_read_relocs | |
6159 | (abfd, o, (PTR) NULL, | |
6160 | (Elf_Internal_Rela *) NULL, | |
6161 | info->keep_memory)); | |
6162 | if (sec_relocs == NULL) | |
6163 | return false; | |
6164 | ||
6165 | rend = sec_relocs + o->reloc_count; | |
6166 | for (r = sec_relocs; r < rend; r++) | |
6167 | if (ELF32_R_SYM (r->r_info) == r_symndx | |
6168 | && ELF32_R_TYPE (r->r_info) != R_MIPS16_26) | |
6169 | break; | |
6170 | ||
6171 | if (! info->keep_memory) | |
6172 | free (sec_relocs); | |
6173 | ||
6174 | if (r < rend) | |
6175 | break; | |
6176 | } | |
6177 | ||
6178 | if (o == NULL) | |
6179 | { | |
6180 | /* There is no non-call reloc for this stub, so we do | |
6181 | not need it. Since this function is called before | |
6182 | the linker maps input sections to output sections, we | |
6183 | can easily discard it by setting the SEC_EXCLUDE | |
6184 | flag. */ | |
6185 | sec->flags |= SEC_EXCLUDE; | |
6186 | return true; | |
6187 | } | |
6188 | ||
6189 | /* Record this stub in an array of local symbol stubs for | |
6190 | this BFD. */ | |
6191 | if (elf_tdata (abfd)->local_stubs == NULL) | |
6192 | { | |
6193 | unsigned long symcount; | |
6194 | asection **n; | |
6195 | ||
6196 | if (elf_bad_symtab (abfd)) | |
6197 | symcount = symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
6198 | else | |
6199 | symcount = symtab_hdr->sh_info; | |
6200 | n = (asection **) bfd_zalloc (abfd, | |
6201 | symcount * sizeof (asection *)); | |
6202 | if (n == NULL) | |
6203 | return false; | |
6204 | elf_tdata (abfd)->local_stubs = n; | |
6205 | } | |
6206 | ||
6207 | elf_tdata (abfd)->local_stubs[r_symndx] = sec; | |
6208 | ||
6209 | /* We don't need to set mips16_stubs_seen in this case. | |
6210 | That flag is used to see whether we need to look through | |
6211 | the global symbol table for stubs. We don't need to set | |
6212 | it here, because we just have a local stub. */ | |
6213 | } | |
6214 | else | |
6215 | { | |
6216 | struct mips_elf_link_hash_entry *h; | |
6217 | ||
6218 | h = ((struct mips_elf_link_hash_entry *) | |
6219 | sym_hashes[r_symndx - extsymoff]); | |
6220 | ||
6221 | /* H is the symbol this stub is for. */ | |
6222 | ||
6223 | h->fn_stub = sec; | |
6224 | mips_elf_hash_table (info)->mips16_stubs_seen = true; | |
6225 | } | |
6226 | } | |
6227 | else if (strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0 | |
6228 | || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0) | |
6229 | { | |
6230 | unsigned long r_symndx; | |
6231 | struct mips_elf_link_hash_entry *h; | |
6232 | asection **loc; | |
6233 | ||
6234 | /* Look at the relocation information to figure out which symbol | |
6235 | this is for. */ | |
6236 | ||
6237 | r_symndx = ELF32_R_SYM (relocs->r_info); | |
6238 | ||
6239 | if (r_symndx < extsymoff | |
6240 | || sym_hashes[r_symndx - extsymoff] == NULL) | |
6241 | { | |
6242 | /* This stub was actually built for a static symbol defined | |
6243 | in the same file. We assume that all static symbols in | |
6244 | mips16 code are themselves mips16, so we can simply | |
6245 | discard this stub. Since this function is called before | |
6246 | the linker maps input sections to output sections, we can | |
6247 | easily discard it by setting the SEC_EXCLUDE flag. */ | |
6248 | sec->flags |= SEC_EXCLUDE; | |
6249 | return true; | |
6250 | } | |
6251 | ||
6252 | h = ((struct mips_elf_link_hash_entry *) | |
6253 | sym_hashes[r_symndx - extsymoff]); | |
6254 | ||
6255 | /* H is the symbol this stub is for. */ | |
6256 | ||
6257 | if (strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0) | |
6258 | loc = &h->call_fp_stub; | |
6259 | else | |
6260 | loc = &h->call_stub; | |
6261 | ||
6262 | /* If we already have an appropriate stub for this function, we | |
6263 | don't need another one, so we can discard this one. Since | |
6264 | this function is called before the linker maps input sections | |
6265 | to output sections, we can easily discard it by setting the | |
6266 | SEC_EXCLUDE flag. We can also discard this section if we | |
6267 | happen to already know that this is a mips16 function; it is | |
6268 | not necessary to check this here, as it is checked later, but | |
6269 | it is slightly faster to check now. */ | |
6270 | if (*loc != NULL || h->root.other == STO_MIPS16) | |
6271 | { | |
6272 | sec->flags |= SEC_EXCLUDE; | |
6273 | return true; | |
6274 | } | |
6275 | ||
6276 | *loc = sec; | |
6277 | mips_elf_hash_table (info)->mips16_stubs_seen = true; | |
6278 | } | |
6279 | ||
4da624dd ILT |
6280 | if (dynobj == NULL) |
6281 | { | |
6282 | sgot = NULL; | |
6283 | g = NULL; | |
6284 | } | |
6285 | else | |
6286 | { | |
6287 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
fe4ff515 ILT |
6288 | if (sgot == NULL) |
6289 | g = NULL; | |
6290 | else | |
6291 | { | |
6292 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
6293 | g = (struct mips_got_info *) elf_section_data (sgot)->tdata; | |
6294 | BFD_ASSERT (g != NULL); | |
6295 | } | |
4da624dd ILT |
6296 | } |
6297 | ||
5b3b9ff6 | 6298 | sreloc = NULL; |
5b3b9ff6 ILT |
6299 | |
6300 | rel_end = relocs + sec->reloc_count; | |
6301 | for (rel = relocs; rel < rel_end; rel++) | |
6302 | { | |
6303 | unsigned long r_symndx; | |
6304 | struct elf_link_hash_entry *h; | |
6305 | ||
6306 | r_symndx = ELF32_R_SYM (rel->r_info); | |
6307 | ||
6308 | if (r_symndx < extsymoff) | |
6309 | h = NULL; | |
6310 | else | |
7d996a75 ILT |
6311 | { |
6312 | h = sym_hashes[r_symndx - extsymoff]; | |
6313 | ||
6314 | /* This may be an indirect symbol created because of a version. */ | |
6315 | if (h != NULL) | |
6316 | { | |
6317 | while (h->root.type == bfd_link_hash_indirect) | |
6318 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
6319 | } | |
6320 | } | |
5b3b9ff6 ILT |
6321 | |
6322 | /* Some relocs require a global offset table. */ | |
4da624dd | 6323 | if (dynobj == NULL || sgot == NULL) |
5b3b9ff6 ILT |
6324 | { |
6325 | switch (ELF32_R_TYPE (rel->r_info)) | |
6326 | { | |
6327 | case R_MIPS_GOT16: | |
6328 | case R_MIPS_CALL16: | |
6329 | case R_MIPS_CALL_HI16: | |
6330 | case R_MIPS_CALL_LO16: | |
6331 | case R_MIPS_GOT_HI16: | |
6332 | case R_MIPS_GOT_LO16: | |
4da624dd ILT |
6333 | if (dynobj == NULL) |
6334 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
5b3b9ff6 ILT |
6335 | if (! mips_elf_create_got_section (dynobj, info)) |
6336 | return false; | |
4da624dd ILT |
6337 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
6338 | BFD_ASSERT (sgot != NULL); | |
6339 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
6340 | g = (struct mips_got_info *) elf_section_data (sgot)->tdata; | |
6341 | BFD_ASSERT (g != NULL); | |
6342 | break; | |
6343 | ||
6344 | case R_MIPS_32: | |
6345 | case R_MIPS_REL32: | |
6346 | if (dynobj == NULL | |
6347 | && (info->shared || h != NULL) | |
6348 | && (sec->flags & SEC_ALLOC) != 0) | |
6349 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
5b3b9ff6 ILT |
6350 | break; |
6351 | ||
6352 | default: | |
6353 | break; | |
6354 | } | |
6355 | } | |
6356 | ||
6357 | switch (ELF32_R_TYPE (rel->r_info)) | |
6358 | { | |
6359 | case R_MIPS_CALL16: | |
6360 | case R_MIPS_CALL_HI16: | |
6361 | case R_MIPS_CALL_LO16: | |
6362 | /* This symbol requires a global offset table entry. */ | |
5b3b9ff6 | 6363 | |
4813bbed ILT |
6364 | if (h == NULL) |
6365 | { | |
6366 | (*_bfd_error_handler) | |
edac2b4c | 6367 | (_("%s: CALL16 reloc at 0x%lx not against global symbol"), |
4813bbed ILT |
6368 | bfd_get_filename (abfd), (unsigned long) rel->r_offset); |
6369 | bfd_set_error (bfd_error_bad_value); | |
6370 | return false; | |
6371 | } | |
5b3b9ff6 ILT |
6372 | |
6373 | /* Make sure this symbol is output as a dynamic symbol. */ | |
6374 | if (h->dynindx == -1) | |
6375 | { | |
6376 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
6377 | return false; | |
6378 | } | |
6379 | ||
303b4cc6 | 6380 | if (h->got.offset != (bfd_vma) -1) |
5b3b9ff6 ILT |
6381 | { |
6382 | /* We have already allocated space in the .got. */ | |
6383 | break; | |
6384 | } | |
6385 | ||
6386 | /* Note the index of the first global got symbol in .dynsym. */ | |
6387 | if (g->global_gotsym == 0 | |
6388 | || g->global_gotsym > (unsigned long) h->dynindx) | |
6389 | g->global_gotsym = h->dynindx; | |
6390 | ||
6391 | /* Make this symbol to have the corresponding got entry. */ | |
303b4cc6 | 6392 | h->got.offset = 0; |
5b3b9ff6 ILT |
6393 | |
6394 | /* We need a stub, not a plt entry for the undefined | |
6395 | function. But we record it as if it needs plt. See | |
6396 | elf_adjust_dynamic_symbol in elflink.h. */ | |
6397 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
6398 | h->type = STT_FUNC; | |
6399 | ||
6400 | break; | |
6401 | ||
6402 | case R_MIPS_GOT16: | |
6403 | case R_MIPS_GOT_HI16: | |
6404 | case R_MIPS_GOT_LO16: | |
6405 | /* This symbol requires a global offset table entry. */ | |
5b3b9ff6 ILT |
6406 | |
6407 | if (h != NULL) | |
6408 | { | |
6409 | /* Make sure this symbol is output as a dynamic symbol. */ | |
6410 | if (h->dynindx == -1) | |
6411 | { | |
6412 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
6413 | return false; | |
6414 | } | |
6415 | ||
303b4cc6 | 6416 | if (h->got.offset != (bfd_vma) -1) |
5b3b9ff6 ILT |
6417 | { |
6418 | /* We have already allocated space in the .got. */ | |
6419 | break; | |
6420 | } | |
6421 | /* Note the index of the first global got symbol in | |
6422 | .dynsym. */ | |
6423 | if (g->global_gotsym == 0 | |
6424 | || g->global_gotsym > (unsigned long) h->dynindx) | |
6425 | g->global_gotsym = h->dynindx; | |
6426 | ||
6427 | /* Make this symbol to be the global got symbol. */ | |
303b4cc6 | 6428 | h->got.offset = 0; |
5b3b9ff6 ILT |
6429 | } |
6430 | ||
6431 | break; | |
6432 | ||
6433 | case R_MIPS_32: | |
6434 | case R_MIPS_REL32: | |
abec70b9 | 6435 | if ((info->shared || h != NULL) |
5b3b9ff6 ILT |
6436 | && (sec->flags & SEC_ALLOC) != 0) |
6437 | { | |
4da624dd ILT |
6438 | if (sreloc == NULL) |
6439 | { | |
6440 | const char *name = ".rel.dyn"; | |
6441 | ||
6442 | sreloc = bfd_get_section_by_name (dynobj, name); | |
6443 | if (sreloc == NULL) | |
6444 | { | |
6445 | sreloc = bfd_make_section (dynobj, name); | |
6446 | if (sreloc == NULL | |
6447 | || ! bfd_set_section_flags (dynobj, sreloc, | |
6448 | (SEC_ALLOC | |
6449 | | SEC_LOAD | |
6450 | | SEC_HAS_CONTENTS | |
6451 | | SEC_IN_MEMORY | |
ff12f303 | 6452 | | SEC_LINKER_CREATED |
4da624dd ILT |
6453 | | SEC_READONLY)) |
6454 | || ! bfd_set_section_alignment (dynobj, sreloc, | |
6455 | 4)) | |
6456 | return false; | |
6457 | } | |
6458 | } | |
9b292d4c | 6459 | if (info->shared) |
5b3b9ff6 | 6460 | { |
9b292d4c ILT |
6461 | /* When creating a shared object, we must copy these |
6462 | reloc types into the output file as R_MIPS_REL32 | |
4da624dd ILT |
6463 | relocs. We make room for this reloc in the |
6464 | .rel.dyn reloc section */ | |
6465 | if (sreloc->_raw_size == 0) | |
5b3b9ff6 | 6466 | { |
4da624dd ILT |
6467 | /* Add a null element. */ |
6468 | sreloc->_raw_size += sizeof (Elf32_External_Rel); | |
6469 | ++sreloc->reloc_count; | |
5b3b9ff6 | 6470 | } |
9b292d4c ILT |
6471 | sreloc->_raw_size += sizeof (Elf32_External_Rel); |
6472 | } | |
abec70b9 ILT |
6473 | else |
6474 | { | |
6475 | struct mips_elf_link_hash_entry *hmips; | |
6476 | ||
6477 | /* We only need to copy this reloc if the symbol is | |
6478 | defined in a dynamic object. */ | |
6479 | hmips = (struct mips_elf_link_hash_entry *) h; | |
6480 | ++hmips->mips_32_relocs; | |
6481 | } | |
5b3b9ff6 ILT |
6482 | } |
6483 | ||
53787b23 ILT |
6484 | if (SGI_COMPAT (abfd)) |
6485 | mips_elf_hash_table (info)->compact_rel_size += | |
6486 | sizeof (Elf32_External_crinfo); | |
6487 | ||
5b3b9ff6 ILT |
6488 | break; |
6489 | ||
6490 | case R_MIPS_26: | |
6491 | case R_MIPS_GPREL16: | |
6492 | case R_MIPS_LITERAL: | |
6493 | case R_MIPS_GPREL32: | |
53787b23 ILT |
6494 | if (SGI_COMPAT (abfd)) |
6495 | mips_elf_hash_table (info)->compact_rel_size += | |
6496 | sizeof (Elf32_External_crinfo); | |
5b3b9ff6 ILT |
6497 | break; |
6498 | ||
303b4cc6 RH |
6499 | /* This relocation describes the C++ object vtable hierarchy. |
6500 | Reconstruct it for later use during GC. */ | |
6501 | case R_MIPS_GNU_VTINHERIT: | |
6502 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
6503 | return false; | |
6504 | break; | |
6505 | ||
6506 | /* This relocation describes which C++ vtable entries are actually | |
6507 | used. Record for later use during GC. */ | |
6508 | case R_MIPS_GNU_VTENTRY: | |
6509 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset)) | |
6510 | return false; | |
6511 | break; | |
6512 | ||
5b3b9ff6 ILT |
6513 | default: |
6514 | break; | |
6515 | } | |
e900e695 ILT |
6516 | |
6517 | /* If this reloc is not a 16 bit call, and it has a global | |
6518 | symbol, then we will need the fn_stub if there is one. | |
6519 | References from a stub section do not count. */ | |
6520 | if (h != NULL | |
6521 | && ELF32_R_TYPE (rel->r_info) != R_MIPS16_26 | |
6522 | && strncmp (bfd_get_section_name (abfd, sec), FN_STUB, | |
6523 | sizeof FN_STUB - 1) != 0 | |
6524 | && strncmp (bfd_get_section_name (abfd, sec), CALL_STUB, | |
6525 | sizeof CALL_STUB - 1) != 0 | |
6526 | && strncmp (bfd_get_section_name (abfd, sec), CALL_FP_STUB, | |
6527 | sizeof CALL_FP_STUB - 1) != 0) | |
6528 | { | |
6529 | struct mips_elf_link_hash_entry *mh; | |
6530 | ||
6531 | mh = (struct mips_elf_link_hash_entry *) h; | |
6532 | mh->need_fn_stub = true; | |
6533 | } | |
5b3b9ff6 ILT |
6534 | } |
6535 | ||
6536 | return true; | |
6537 | } | |
6538 | ||
303b4cc6 RH |
6539 | /* Return the section that should be marked against GC for a given |
6540 | relocation. */ | |
6541 | ||
6542 | static asection * | |
6543 | mips_elf_gc_mark_hook (abfd, info, rel, h, sym) | |
6544 | bfd *abfd; | |
6545 | struct bfd_link_info *info; | |
6546 | Elf_Internal_Rela *rel; | |
6547 | struct elf_link_hash_entry *h; | |
6548 | Elf_Internal_Sym *sym; | |
6549 | { | |
6550 | /* ??? Do mips16 stub sections need to be handled special? */ | |
6551 | ||
6552 | if (h != NULL) | |
6553 | { | |
6554 | switch (ELF32_R_TYPE (rel->r_info)) | |
6555 | { | |
6556 | case R_MIPS_GNU_VTINHERIT: | |
6557 | case R_MIPS_GNU_VTENTRY: | |
6558 | break; | |
6559 | ||
6560 | default: | |
6561 | switch (h->root.type) | |
6562 | { | |
6563 | case bfd_link_hash_defined: | |
6564 | case bfd_link_hash_defweak: | |
6565 | return h->root.u.def.section; | |
6566 | ||
6567 | case bfd_link_hash_common: | |
6568 | return h->root.u.c.p->section; | |
6569 | } | |
6570 | } | |
6571 | } | |
6572 | else | |
6573 | { | |
6574 | if (!(elf_bad_symtab (abfd) | |
6575 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
6576 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
6577 | && sym->st_shndx != SHN_COMMON)) | |
6578 | { | |
6579 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
6580 | } | |
6581 | } | |
6582 | ||
6583 | return NULL; | |
6584 | } | |
6585 | ||
6586 | /* Update the got entry reference counts for the section being removed. */ | |
6587 | ||
6588 | static boolean | |
6589 | mips_elf_gc_sweep_hook (abfd, info, sec, relocs) | |
6590 | bfd *abfd; | |
6591 | struct bfd_link_info *info; | |
6592 | asection *sec; | |
6593 | const Elf_Internal_Rela *relocs; | |
6594 | { | |
6595 | #if 0 | |
6596 | Elf_Internal_Shdr *symtab_hdr; | |
6597 | struct elf_link_hash_entry **sym_hashes; | |
6598 | bfd_signed_vma *local_got_refcounts; | |
6599 | const Elf_Internal_Rela *rel, *relend; | |
6600 | unsigned long r_symndx; | |
6601 | struct elf_link_hash_entry *h; | |
6602 | ||
6603 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
6604 | sym_hashes = elf_sym_hashes (abfd); | |
6605 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
6606 | ||
6607 | relend = relocs + sec->reloc_count; | |
6608 | for (rel = relocs; rel < relend; rel++) | |
6609 | switch (ELF32_R_TYPE (rel->r_info)) | |
6610 | { | |
6611 | case R_MIPS_GOT16: | |
6612 | case R_MIPS_CALL16: | |
6613 | case R_MIPS_CALL_HI16: | |
6614 | case R_MIPS_CALL_LO16: | |
6615 | case R_MIPS_GOT_HI16: | |
6616 | case R_MIPS_GOT_LO16: | |
6617 | /* ??? It would seem that the existing MIPS code does no sort | |
6618 | of reference counting or whatnot on its GOT and PLT entries, | |
6619 | so it is not possible to garbage collect them at this time. */ | |
6620 | break; | |
6621 | ||
6622 | default: | |
6623 | break; | |
6624 | } | |
6625 | #endif | |
6626 | ||
6627 | return true; | |
6628 | } | |
6629 | ||
6630 | ||
5b3b9ff6 ILT |
6631 | /* Adjust a symbol defined by a dynamic object and referenced by a |
6632 | regular object. The current definition is in some section of the | |
6633 | dynamic object, but we're not including those sections. We have to | |
6634 | change the definition to something the rest of the link can | |
6635 | understand. */ | |
6636 | ||
6637 | static boolean | |
6638 | mips_elf_adjust_dynamic_symbol (info, h) | |
6639 | struct bfd_link_info *info; | |
6640 | struct elf_link_hash_entry *h; | |
6641 | { | |
6642 | bfd *dynobj; | |
abec70b9 | 6643 | struct mips_elf_link_hash_entry *hmips; |
5b3b9ff6 ILT |
6644 | asection *s; |
6645 | ||
6646 | dynobj = elf_hash_table (info)->dynobj; | |
6647 | ||
6648 | /* Make sure we know what is going on here. */ | |
6649 | BFD_ASSERT (dynobj != NULL | |
6650 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) | |
6651 | || h->weakdef != NULL | |
6652 | || ((h->elf_link_hash_flags | |
6653 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
6654 | && (h->elf_link_hash_flags | |
6655 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
6656 | && (h->elf_link_hash_flags | |
6657 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
6658 | ||
abec70b9 ILT |
6659 | /* If this symbol is defined in a dynamic object, we need to copy |
6660 | any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output | |
6661 | file. */ | |
6662 | hmips = (struct mips_elf_link_hash_entry *) h; | |
6663 | if (! info->relocateable | |
6664 | && hmips->mips_32_relocs != 0 | |
6665 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
6666 | { | |
6667 | s = bfd_get_section_by_name (dynobj, ".rel.dyn"); | |
6668 | BFD_ASSERT (s != NULL); | |
6669 | ||
4da624dd ILT |
6670 | if (s->_raw_size == 0) |
6671 | { | |
6672 | /* Make room for a null element. */ | |
6673 | s->_raw_size += sizeof (Elf32_External_Rel); | |
6674 | ++s->reloc_count; | |
6675 | } | |
abec70b9 ILT |
6676 | s->_raw_size += hmips->mips_32_relocs * sizeof (Elf32_External_Rel); |
6677 | } | |
6678 | ||
5b3b9ff6 ILT |
6679 | /* For a function, create a stub, if needed. */ |
6680 | if (h->type == STT_FUNC | |
6681 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
6682 | { | |
6683 | if (! elf_hash_table (info)->dynamic_sections_created) | |
6684 | return true; | |
6685 | ||
6686 | /* If this symbol is not defined in a regular file, then set | |
6687 | the symbol to the stub location. This is required to make | |
6688 | function pointers compare as equal between the normal | |
6689 | executable and the shared library. */ | |
6690 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
6691 | { | |
6692 | /* We need .stub section. */ | |
6693 | s = bfd_get_section_by_name (dynobj, ".stub"); | |
6694 | BFD_ASSERT (s != NULL); | |
6695 | ||
6696 | h->root.u.def.section = s; | |
6697 | h->root.u.def.value = s->_raw_size; | |
6698 | ||
6699 | /* XXX Write this stub address somewhere. */ | |
303b4cc6 | 6700 | h->plt.offset = s->_raw_size; |
5b3b9ff6 ILT |
6701 | |
6702 | /* Make room for this stub code. */ | |
6703 | s->_raw_size += MIPS_FUNCTION_STUB_SIZE; | |
6704 | ||
6705 | /* The last half word of the stub will be filled with the index | |
6706 | of this symbol in .dynsym section. */ | |
6707 | return true; | |
6708 | } | |
6709 | } | |
6710 | ||
6711 | /* If this is a weak symbol, and there is a real definition, the | |
6712 | processor independent code will have arranged for us to see the | |
6713 | real definition first, and we can just use the same value. */ | |
6714 | if (h->weakdef != NULL) | |
6715 | { | |
6716 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
6717 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
6718 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
6719 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
6720 | return true; | |
6721 | } | |
6722 | ||
6723 | /* This is a reference to a symbol defined by a dynamic object which | |
6724 | is not a function. */ | |
6725 | ||
6726 | return true; | |
6727 | } | |
6728 | ||
e900e695 ILT |
6729 | /* This function is called after all the input files have been read, |
6730 | and the input sections have been assigned to output sections. We | |
6731 | check for any mips16 stub sections that we can discard. */ | |
6732 | ||
6733 | static boolean mips_elf_check_mips16_stubs | |
6734 | PARAMS ((struct mips_elf_link_hash_entry *, PTR)); | |
6735 | ||
6736 | static boolean | |
6737 | mips_elf_always_size_sections (output_bfd, info) | |
6738 | bfd *output_bfd; | |
6739 | struct bfd_link_info *info; | |
6740 | { | |
6741 | if (info->relocateable | |
6742 | || ! mips_elf_hash_table (info)->mips16_stubs_seen) | |
6743 | return true; | |
6744 | ||
6745 | mips_elf_link_hash_traverse (mips_elf_hash_table (info), | |
6746 | mips_elf_check_mips16_stubs, | |
6747 | (PTR) NULL); | |
6748 | ||
6749 | return true; | |
6750 | } | |
6751 | ||
6752 | /* Check the mips16 stubs for a particular symbol, and see if we can | |
6753 | discard them. */ | |
6754 | ||
6755 | /*ARGSUSED*/ | |
6756 | static boolean | |
6757 | mips_elf_check_mips16_stubs (h, data) | |
6758 | struct mips_elf_link_hash_entry *h; | |
6759 | PTR data; | |
6760 | { | |
6761 | if (h->fn_stub != NULL | |
6762 | && ! h->need_fn_stub) | |
6763 | { | |
6764 | /* We don't need the fn_stub; the only references to this symbol | |
6765 | are 16 bit calls. Clobber the size to 0 to prevent it from | |
6766 | being included in the link. */ | |
6767 | h->fn_stub->_raw_size = 0; | |
6768 | h->fn_stub->_cooked_size = 0; | |
6769 | h->fn_stub->flags &= ~ SEC_RELOC; | |
6770 | h->fn_stub->reloc_count = 0; | |
6771 | h->fn_stub->flags |= SEC_EXCLUDE; | |
6772 | } | |
6773 | ||
6774 | if (h->call_stub != NULL | |
6775 | && h->root.other == STO_MIPS16) | |
6776 | { | |
6777 | /* We don't need the call_stub; this is a 16 bit function, so | |
6778 | calls from other 16 bit functions are OK. Clobber the size | |
6779 | to 0 to prevent it from being included in the link. */ | |
6780 | h->call_stub->_raw_size = 0; | |
6781 | h->call_stub->_cooked_size = 0; | |
6782 | h->call_stub->flags &= ~ SEC_RELOC; | |
6783 | h->call_stub->reloc_count = 0; | |
6784 | h->call_stub->flags |= SEC_EXCLUDE; | |
6785 | } | |
6786 | ||
6787 | if (h->call_fp_stub != NULL | |
6788 | && h->root.other == STO_MIPS16) | |
6789 | { | |
6790 | /* We don't need the call_stub; this is a 16 bit function, so | |
6791 | calls from other 16 bit functions are OK. Clobber the size | |
6792 | to 0 to prevent it from being included in the link. */ | |
6793 | h->call_fp_stub->_raw_size = 0; | |
6794 | h->call_fp_stub->_cooked_size = 0; | |
6795 | h->call_fp_stub->flags &= ~ SEC_RELOC; | |
6796 | h->call_fp_stub->reloc_count = 0; | |
6797 | h->call_fp_stub->flags |= SEC_EXCLUDE; | |
6798 | } | |
6799 | ||
6800 | return true; | |
6801 | } | |
6802 | ||
5b3b9ff6 ILT |
6803 | /* Set the sizes of the dynamic sections. */ |
6804 | ||
6805 | static boolean | |
6806 | mips_elf_size_dynamic_sections (output_bfd, info) | |
6807 | bfd *output_bfd; | |
6808 | struct bfd_link_info *info; | |
6809 | { | |
6810 | bfd *dynobj; | |
6811 | asection *s; | |
6812 | boolean reltext; | |
6813 | asection *sgot; | |
6814 | struct mips_got_info *g; | |
6815 | ||
6816 | dynobj = elf_hash_table (info)->dynobj; | |
6817 | BFD_ASSERT (dynobj != NULL); | |
6818 | ||
6819 | if (elf_hash_table (info)->dynamic_sections_created) | |
6820 | { | |
6821 | /* Set the contents of the .interp section to the interpreter. */ | |
6822 | if (! info->shared) | |
6823 | { | |
6824 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
6825 | BFD_ASSERT (s != NULL); | |
6826 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
6827 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
6828 | } | |
6829 | } | |
6830 | ||
6831 | /* Recompute the size of .got for local entires (reserved and | |
6832 | hipages) if needed. To estimate it, get the upper bound of total | |
6833 | size of loadable sections. */ | |
6834 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
6835 | ||
6836 | if (sgot != NULL) | |
6837 | { | |
6838 | bfd_size_type loadable_size = 0; | |
6839 | bfd_size_type local_gotno; | |
6840 | struct _bfd *sub; | |
6841 | ||
6842 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
6843 | g = (struct mips_got_info *) elf_section_data (sgot)->tdata; | |
6844 | BFD_ASSERT (g != NULL); | |
6845 | ||
6846 | for (sub = info->input_bfds; sub; sub = sub->link_next) | |
6847 | for (s = sub->sections; s != NULL; s = s->next) | |
6848 | { | |
6849 | if ((s->flags & SEC_ALLOC) == 0) | |
6850 | continue; | |
6851 | loadable_size += (s->_raw_size + 0xf) & ~0xf; | |
6852 | } | |
6853 | ||
6854 | loadable_size += MIPS_FUNCTION_STUB_SIZE; | |
6855 | ||
6856 | /* Assume there are two loadable segments consisting of | |
6857 | contiguous sections. Is 5 enough? */ | |
6858 | local_gotno = (loadable_size >> 16) + 5 + MIPS_RESERVED_GOTNO; | |
6859 | g->local_gotno = local_gotno; | |
6860 | sgot->_raw_size += local_gotno * 4; | |
6861 | } | |
6862 | ||
6863 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
6864 | determined the sizes of the various dynamic sections. Allocate | |
6865 | memory for them. */ | |
6866 | reltext = false; | |
6867 | for (s = dynobj->sections; s != NULL; s = s->next) | |
6868 | { | |
6869 | const char *name; | |
6870 | boolean strip; | |
6871 | ||
6872 | /* It's OK to base decisions on the section name, because none | |
6873 | of the dynobj section names depend upon the input files. */ | |
6874 | name = bfd_get_section_name (dynobj, s); | |
6875 | ||
ff12f303 | 6876 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
5b3b9ff6 ILT |
6877 | continue; |
6878 | ||
6879 | strip = false; | |
6880 | ||
6881 | if (strncmp (name, ".rel", 4) == 0) | |
6882 | { | |
6883 | if (s->_raw_size == 0) | |
303b4cc6 RH |
6884 | { |
6885 | /* We only strip the section if the output section name | |
6886 | has the same name. Otherwise, there might be several | |
6887 | input sections for this output section. FIXME: This | |
6888 | code is probably not needed these days anyhow, since | |
6889 | the linker now does not create empty output sections. */ | |
6890 | if (s->output_section != NULL | |
6891 | && strcmp (name, | |
6892 | bfd_get_section_name (s->output_section->owner, | |
6893 | s->output_section)) == 0) | |
6894 | strip = true; | |
6895 | } | |
5b3b9ff6 ILT |
6896 | else |
6897 | { | |
9950f925 | 6898 | const char *outname; |
5b3b9ff6 ILT |
6899 | asection *target; |
6900 | ||
6901 | /* If this relocation section applies to a read only | |
6902 | section, then we probably need a DT_TEXTREL entry. | |
6903 | If the relocation section is .rel.dyn, we always | |
6904 | assert a DT_TEXTREL entry rather than testing whether | |
6905 | there exists a relocation to a read only section or | |
6906 | not. */ | |
9950f925 ILT |
6907 | outname = bfd_get_section_name (output_bfd, |
6908 | s->output_section); | |
6909 | target = bfd_get_section_by_name (output_bfd, outname + 4); | |
3134a2bd DE |
6910 | if ((target != NULL |
6911 | && (target->flags & SEC_READONLY) != 0 | |
6912 | && (target->flags & SEC_ALLOC) != 0) | |
9950f925 | 6913 | || strcmp (outname, ".rel.dyn") == 0) |
5b3b9ff6 ILT |
6914 | reltext = true; |
6915 | ||
6916 | /* We use the reloc_count field as a counter if we need | |
6917 | to copy relocs into the output file. */ | |
6918 | if (strcmp (name, ".rel.dyn") != 0) | |
6919 | s->reloc_count = 0; | |
6920 | } | |
6921 | } | |
6922 | else if (strncmp (name, ".got", 4) == 0) | |
6923 | { | |
6924 | int i; | |
6925 | ||
6926 | BFD_ASSERT (elf_section_data (s) != NULL); | |
6927 | g = (struct mips_got_info *) elf_section_data (s)->tdata; | |
6928 | BFD_ASSERT (g != NULL); | |
6929 | ||
6930 | /* Fix the size of .got section for the correspondence of | |
6931 | global symbols and got entries. This adds some useless | |
6932 | got entries. Is this required by ABI really? */ | |
6933 | i = elf_hash_table (info)->dynsymcount - g->global_gotsym; | |
6934 | s->_raw_size += i * 4; | |
6935 | } | |
6936 | else if (strncmp (name, ".stub", 5) == 0) | |
6937 | { | |
6938 | /* Irix rld assumes that the function stub isn't at the end | |
6939 | of .text section. So put a dummy. XXX */ | |
6940 | s->_raw_size += MIPS_FUNCTION_STUB_SIZE; | |
6941 | } | |
eb52b9dc ILT |
6942 | else if (! info->shared |
6943 | && ! mips_elf_hash_table (info)->use_rld_obj_head | |
6944 | && strncmp (name, ".rld_map", 8) == 0) | |
6945 | { | |
6946 | /* We add a room for __rld_map. It will be filled in by the | |
6947 | rtld to contain a pointer to the _r_debug structure. */ | |
6948 | s->_raw_size += 4; | |
6949 | } | |
53787b23 ILT |
6950 | else if (SGI_COMPAT (output_bfd) |
6951 | && strncmp (name, ".compact_rel", 12) == 0) | |
6952 | s->_raw_size += mips_elf_hash_table (info)->compact_rel_size; | |
6953 | else if (strncmp (name, ".init", 5) != 0) | |
5b3b9ff6 ILT |
6954 | { |
6955 | /* It's not one of our sections, so don't allocate space. */ | |
6956 | continue; | |
6957 | } | |
6958 | ||
6959 | if (strip) | |
6960 | { | |
6961 | asection **spp; | |
6962 | ||
6963 | for (spp = &s->output_section->owner->sections; | |
6964 | *spp != s->output_section; | |
6965 | spp = &(*spp)->next) | |
6966 | ; | |
6967 | *spp = s->output_section->next; | |
6968 | --s->output_section->owner->section_count; | |
6969 | ||
6970 | continue; | |
6971 | } | |
6972 | ||
6973 | /* Allocate memory for the section contents. */ | |
6974 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); | |
6975 | if (s->contents == NULL && s->_raw_size != 0) | |
6976 | { | |
6977 | bfd_set_error (bfd_error_no_memory); | |
6978 | return false; | |
6979 | } | |
6980 | memset (s->contents, 0, s->_raw_size); | |
6981 | } | |
6982 | ||
6983 | if (elf_hash_table (info)->dynamic_sections_created) | |
6984 | { | |
6985 | /* Add some entries to the .dynamic section. We fill in the | |
6986 | values later, in elf_mips_finish_dynamic_sections, but we | |
6987 | must add the entries now so that we get the correct size for | |
6988 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
6989 | dynamic linker and used by the debugger. */ | |
6990 | if (! info->shared) | |
6991 | { | |
eb52b9dc ILT |
6992 | if (SGI_COMPAT (output_bfd)) |
6993 | { | |
6994 | /* SGI object has the equivalence of DT_DEBUG in the | |
6995 | DT_MIPS_RLD_MAP entry. */ | |
6996 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_RLD_MAP, 0)) | |
6997 | return false; | |
6998 | } | |
6999 | else | |
7000 | if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0)) | |
7001 | return false; | |
5b3b9ff6 ILT |
7002 | } |
7003 | ||
7004 | if (reltext) | |
7005 | { | |
7006 | if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0)) | |
7007 | return false; | |
7008 | } | |
7009 | ||
7010 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)) | |
7011 | return false; | |
7012 | ||
7013 | if (bfd_get_section_by_name (dynobj, ".rel.dyn")) | |
7014 | { | |
7015 | if (! bfd_elf32_add_dynamic_entry (info, DT_REL, 0)) | |
7016 | return false; | |
7017 | ||
7018 | if (! bfd_elf32_add_dynamic_entry (info, DT_RELSZ, 0)) | |
7019 | return false; | |
7020 | ||
7021 | if (! bfd_elf32_add_dynamic_entry (info, DT_RELENT, 0)) | |
7022 | return false; | |
7023 | } | |
7024 | ||
7025 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_CONFLICTNO, 0)) | |
7026 | return false; | |
7027 | ||
7028 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_LIBLISTNO, 0)) | |
7029 | return false; | |
7030 | ||
53787b23 | 7031 | if (bfd_get_section_by_name (dynobj, ".conflict") != NULL) |
5b3b9ff6 ILT |
7032 | { |
7033 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_CONFLICT, 0)) | |
7034 | return false; | |
7035 | ||
7036 | s = bfd_get_section_by_name (dynobj, ".liblist"); | |
7037 | BFD_ASSERT (s != NULL); | |
7038 | ||
7039 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_LIBLIST, 0)) | |
7040 | return false; | |
7041 | } | |
7042 | ||
7043 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_RLD_VERSION, 0)) | |
7044 | return false; | |
7045 | ||
7046 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_FLAGS, 0)) | |
7047 | return false; | |
7048 | ||
53787b23 ILT |
7049 | #if 0 |
7050 | /* Time stamps in executable files are a bad idea. */ | |
5b3b9ff6 ILT |
7051 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_TIME_STAMP, 0)) |
7052 | return false; | |
53787b23 | 7053 | #endif |
5b3b9ff6 ILT |
7054 | |
7055 | #if 0 /* FIXME */ | |
7056 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_ICHECKSUM, 0)) | |
7057 | return false; | |
7058 | #endif | |
7059 | ||
7060 | #if 0 /* FIXME */ | |
7061 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_IVERSION, 0)) | |
7062 | return false; | |
7063 | #endif | |
7064 | ||
7065 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_BASE_ADDRESS, 0)) | |
7066 | return false; | |
7067 | ||
7068 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_LOCAL_GOTNO, 0)) | |
7069 | return false; | |
7070 | ||
7071 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_SYMTABNO, 0)) | |
7072 | return false; | |
7073 | ||
7074 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_UNREFEXTNO, 0)) | |
7075 | return false; | |
7076 | ||
7077 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_GOTSYM, 0)) | |
7078 | return false; | |
7079 | ||
7080 | if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_HIPAGENO, 0)) | |
7081 | return false; | |
7082 | ||
7083 | #if 0 /* (SGI_COMPAT) */ | |
7084 | if (! bfd_get_section_by_name (dynobj, ".init")) | |
7085 | if (! bfd_elf32_add_dynamic_entry (info, DT_INIT, 0)) | |
7086 | return false; | |
7087 | ||
7088 | if (! bfd_get_section_by_name (dynobj, ".fini")) | |
7089 | if (! bfd_elf32_add_dynamic_entry (info, DT_FINI, 0)) | |
7090 | return false; | |
7091 | #endif | |
7092 | } | |
7093 | ||
53787b23 ILT |
7094 | /* If we use dynamic linking, we generate a section symbol for each |
7095 | output section. These are local symbols, which means that they | |
7096 | must come first in the dynamic symbol table. | |
5b3b9ff6 ILT |
7097 | That means we must increment the dynamic symbol index of every |
7098 | other dynamic symbol. */ | |
53787b23 ILT |
7099 | { |
7100 | const char * const *namep; | |
7101 | unsigned int c, i; | |
7102 | bfd_size_type strindex; | |
7103 | struct bfd_strtab_hash *dynstr; | |
7104 | struct mips_got_info *g; | |
7105 | ||
9b292d4c | 7106 | c = 0; |
53787b23 ILT |
7107 | if (elf_hash_table (info)->dynamic_sections_created) |
7108 | { | |
7109 | if (SGI_COMPAT (output_bfd)) | |
7110 | { | |
7111 | c = SIZEOF_MIPS_DYNSYM_SECNAMES - 1; | |
7112 | elf_link_hash_traverse (elf_hash_table (info), | |
7113 | mips_elf_adjust_dynindx, | |
7114 | (PTR) &c); | |
7115 | elf_hash_table (info)->dynsymcount += c; | |
7116 | ||
7117 | dynstr = elf_hash_table (info)->dynstr; | |
7118 | BFD_ASSERT (dynstr != NULL); | |
7119 | ||
7120 | for (i = 1, namep = mips_elf_dynsym_sec_names; | |
7121 | *namep != NULL; | |
7122 | i++, namep++) | |
7123 | { | |
7124 | s = bfd_get_section_by_name (output_bfd, *namep); | |
7125 | if (s != NULL) | |
7126 | elf_section_data (s)->dynindx = i; | |
5b3b9ff6 | 7127 | |
53787b23 ILT |
7128 | strindex = _bfd_stringtab_add (dynstr, *namep, true, false); |
7129 | if (strindex == (bfd_size_type) -1) | |
7130 | return false; | |
5b3b9ff6 | 7131 | |
53787b23 ILT |
7132 | mips_elf_hash_table (info)->dynsym_sec_strindex[i] = strindex; |
7133 | } | |
7134 | } | |
7135 | else | |
7136 | { | |
7137 | c = bfd_count_sections (output_bfd); | |
7138 | elf_link_hash_traverse (elf_hash_table (info), | |
7139 | mips_elf_adjust_dynindx, | |
7140 | (PTR) &c); | |
7141 | elf_hash_table (info)->dynsymcount += c; | |
5b3b9ff6 | 7142 | |
53787b23 ILT |
7143 | for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++) |
7144 | { | |
7145 | elf_section_data (s)->dynindx = i; | |
7146 | /* These symbols will have no names, so we don't need to | |
7147 | fiddle with dynstr_index. */ | |
7148 | } | |
7149 | } | |
7150 | } | |
5b3b9ff6 | 7151 | |
4da624dd ILT |
7152 | if (sgot != NULL) |
7153 | { | |
7154 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
7155 | g = (struct mips_got_info *) elf_section_data (sgot)->tdata; | |
7156 | BFD_ASSERT (g != NULL); | |
7157 | ||
7158 | /* If there are no global got symbols, fake the last symbol so | |
7159 | for safety. */ | |
7160 | if (g->global_gotsym) | |
7161 | g->global_gotsym += c; | |
7162 | else | |
7163 | g->global_gotsym = elf_hash_table (info)->dynsymcount - 1; | |
7164 | } | |
53787b23 | 7165 | } |
5b3b9ff6 ILT |
7166 | |
7167 | return true; | |
7168 | } | |
7169 | ||
7170 | /* Increment the index of a dynamic symbol by a given amount. Called | |
7171 | via elf_link_hash_traverse. */ | |
7172 | ||
7173 | static boolean | |
7174 | mips_elf_adjust_dynindx (h, cparg) | |
7175 | struct elf_link_hash_entry *h; | |
7176 | PTR cparg; | |
7177 | { | |
53787b23 | 7178 | unsigned int *cp = (unsigned int *) cparg; |
5b3b9ff6 ILT |
7179 | |
7180 | if (h->dynindx != -1) | |
7181 | h->dynindx += *cp; | |
7182 | return true; | |
7183 | } | |
7184 | ||
7185 | /* Finish up dynamic symbol handling. We set the contents of various | |
7186 | dynamic sections here. */ | |
7187 | ||
7188 | static boolean | |
7189 | mips_elf_finish_dynamic_symbol (output_bfd, info, h, sym) | |
7190 | bfd *output_bfd; | |
7191 | struct bfd_link_info *info; | |
7192 | struct elf_link_hash_entry *h; | |
7193 | Elf_Internal_Sym *sym; | |
7194 | { | |
7195 | bfd *dynobj; | |
7196 | bfd_vma gval; | |
7197 | asection *sgot; | |
7198 | struct mips_got_info *g; | |
7199 | const char *name; | |
7200 | ||
7201 | dynobj = elf_hash_table (info)->dynobj; | |
7202 | gval = sym->st_value; | |
7203 | ||
303b4cc6 | 7204 | if (h->plt.offset != (bfd_vma) -1) |
5b3b9ff6 ILT |
7205 | { |
7206 | asection *s; | |
7207 | bfd_byte *p; | |
7208 | bfd_byte stub[MIPS_FUNCTION_STUB_SIZE]; | |
7209 | ||
7210 | /* This symbol has a stub. Set it up. */ | |
7211 | ||
7212 | BFD_ASSERT (h->dynindx != -1); | |
7213 | ||
7214 | s = bfd_get_section_by_name (dynobj, ".stub"); | |
7215 | BFD_ASSERT (s != NULL); | |
7216 | ||
7217 | /* Fill the stub. */ | |
7218 | p = stub; | |
7219 | bfd_put_32 (output_bfd, STUB_LW(output_bfd), p); | |
7220 | p += 4; | |
7221 | bfd_put_32 (output_bfd, STUB_MOVE, p); | |
7222 | p += 4; | |
7223 | ||
7224 | /* FIXME: Can h->dynindex be more than 64K? */ | |
7225 | if (h->dynindx & 0xffff0000) | |
7226 | return false; | |
7227 | ||
7228 | bfd_put_32 (output_bfd, STUB_JALR, p); | |
7229 | p += 4; | |
7230 | bfd_put_32 (output_bfd, STUB_LI16 + h->dynindx, p); | |
7231 | ||
303b4cc6 RH |
7232 | BFD_ASSERT (h->plt.offset <= s->_raw_size); |
7233 | memcpy (s->contents + h->plt.offset, stub, MIPS_FUNCTION_STUB_SIZE); | |
5b3b9ff6 | 7234 | |
303b4cc6 | 7235 | /* Mark the symbol as undefined. plt.offset != -1 occurs |
5b3b9ff6 ILT |
7236 | only for the referenced symbol. */ |
7237 | sym->st_shndx = SHN_UNDEF; | |
7238 | ||
7239 | /* The run-time linker uses the st_value field of the symbol | |
7240 | to reset the global offset table entry for this external | |
7241 | to its stub address when unlinking a shared object. */ | |
303b4cc6 | 7242 | gval = s->output_section->vma + s->output_offset + h->plt.offset; |
5b3b9ff6 ILT |
7243 | sym->st_value = gval; |
7244 | } | |
7245 | ||
7246 | BFD_ASSERT (h->dynindx != -1); | |
7247 | ||
7248 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
7249 | BFD_ASSERT (sgot != NULL); | |
7250 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
7251 | g = (struct mips_got_info *) elf_section_data (sgot)->tdata; | |
7252 | BFD_ASSERT (g != NULL); | |
7253 | ||
7254 | if ((unsigned long) h->dynindx >= g->global_gotsym) | |
7255 | { | |
7256 | bfd_size_type offset; | |
7257 | ||
7258 | /* This symbol has an entry in the global offset table. Set its | |
7259 | value to the corresponding got entry, if needed. */ | |
303b4cc6 | 7260 | if (h->got.offset == (bfd_vma) -1) |
5b3b9ff6 ILT |
7261 | { |
7262 | offset = (h->dynindx - g->global_gotsym + g->local_gotno) * 4; | |
7263 | BFD_ASSERT (g->local_gotno * 4 <= offset | |
7264 | && offset < sgot->_raw_size); | |
7265 | bfd_put_32 (output_bfd, gval, sgot->contents + offset); | |
7266 | } | |
7267 | } | |
7268 | ||
7269 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
7270 | name = h->root.root.string; | |
7271 | if (strcmp (name, "_DYNAMIC") == 0 | |
7272 | || strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0) | |
7273 | sym->st_shndx = SHN_ABS; | |
53787b23 ILT |
7274 | else if (strcmp (name, "_DYNAMIC_LINK") == 0) |
7275 | { | |
7276 | sym->st_shndx = SHN_ABS; | |
7277 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
7278 | sym->st_value = 1; | |
7279 | } | |
7280 | else if (SGI_COMPAT (output_bfd)) | |
5b3b9ff6 ILT |
7281 | { |
7282 | if (strcmp (name, "_gp_disp") == 0) | |
7283 | { | |
7284 | sym->st_shndx = SHN_ABS; | |
7285 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
abec70b9 | 7286 | sym->st_value = elf_gp (output_bfd); |
5b3b9ff6 ILT |
7287 | } |
7288 | else if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0 | |
7289 | || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0) | |
7290 | { | |
7291 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
7292 | sym->st_other = STO_PROTECTED; | |
7293 | sym->st_value = 0; | |
7294 | sym->st_shndx = SHN_MIPS_DATA; | |
7295 | } | |
7296 | else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0) | |
7297 | { | |
7298 | sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
7299 | sym->st_other = STO_PROTECTED; | |
7300 | sym->st_value = mips_elf_hash_table (info)->procedure_count; | |
7301 | sym->st_shndx = SHN_ABS; | |
7302 | } | |
7d996a75 | 7303 | else if (sym->st_shndx != SHN_UNDEF && sym->st_shndx != SHN_ABS) |
5b3b9ff6 ILT |
7304 | { |
7305 | if (h->type == STT_FUNC) | |
7306 | sym->st_shndx = SHN_MIPS_TEXT; | |
7307 | else if (h->type == STT_OBJECT) | |
7308 | sym->st_shndx = SHN_MIPS_DATA; | |
7309 | } | |
7310 | } | |
7311 | ||
eb52b9dc ILT |
7312 | if (SGI_COMPAT (output_bfd) |
7313 | && ! info->shared) | |
7314 | { | |
7315 | if (! mips_elf_hash_table (info)->use_rld_obj_head | |
7316 | && strcmp (name, "__rld_map") == 0) | |
7317 | { | |
7318 | asection *s = bfd_get_section_by_name (dynobj, ".rld_map"); | |
7319 | BFD_ASSERT (s != NULL); | |
7320 | sym->st_value = s->output_section->vma + s->output_offset; | |
7321 | bfd_put_32 (output_bfd, (bfd_vma) 0, s->contents); | |
7322 | if (mips_elf_hash_table (info)->rld_value == 0) | |
7323 | mips_elf_hash_table (info)->rld_value = sym->st_value; | |
7324 | } | |
7325 | else if (mips_elf_hash_table (info)->use_rld_obj_head | |
7326 | && strcmp (name, "__rld_obj_head") == 0) | |
7327 | { | |
7328 | asection *s = bfd_get_section_by_name (dynobj, ".rld_map"); | |
7329 | BFD_ASSERT (s != NULL); | |
7330 | mips_elf_hash_table (info)->rld_value = sym->st_value; | |
7331 | } | |
7332 | } | |
7333 | ||
e4f4813f ILT |
7334 | /* If this is a mips16 symbol, force the value to be even. */ |
7335 | if (sym->st_other == STO_MIPS16 | |
7336 | && (sym->st_value & 1) != 0) | |
7337 | --sym->st_value; | |
7338 | ||
5b3b9ff6 ILT |
7339 | return true; |
7340 | } | |
7341 | ||
7342 | /* Finish up the dynamic sections. */ | |
7343 | ||
7344 | static boolean | |
7345 | mips_elf_finish_dynamic_sections (output_bfd, info) | |
7346 | bfd *output_bfd; | |
7347 | struct bfd_link_info *info; | |
7348 | { | |
7349 | bfd *dynobj; | |
7350 | asection *sdyn; | |
7351 | asection *sgot; | |
7352 | struct mips_got_info *g; | |
7353 | ||
7354 | dynobj = elf_hash_table (info)->dynobj; | |
7355 | ||
7356 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
7357 | ||
7358 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
4da624dd ILT |
7359 | if (sgot == NULL) |
7360 | g = NULL; | |
7361 | else | |
7362 | { | |
7363 | BFD_ASSERT (elf_section_data (sgot) != NULL); | |
7364 | g = (struct mips_got_info *) elf_section_data (sgot)->tdata; | |
7365 | BFD_ASSERT (g != NULL); | |
7366 | } | |
5b3b9ff6 ILT |
7367 | |
7368 | if (elf_hash_table (info)->dynamic_sections_created) | |
7369 | { | |
7370 | Elf32_External_Dyn *dyncon, *dynconend; | |
7371 | ||
7372 | BFD_ASSERT (sdyn != NULL); | |
4da624dd | 7373 | BFD_ASSERT (g != NULL); |
5b3b9ff6 ILT |
7374 | |
7375 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
7376 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
7377 | for (; dyncon < dynconend; dyncon++) | |
7378 | { | |
7379 | Elf_Internal_Dyn dyn; | |
7380 | const char *name; | |
7381 | size_t elemsize; | |
7382 | asection *s; | |
7383 | ||
7384 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
7385 | ||
7386 | switch (dyn.d_tag) | |
7387 | { | |
7388 | default: | |
7389 | break; | |
7390 | ||
7391 | case DT_RELENT: | |
7392 | s = bfd_get_section_by_name (dynobj, ".rel.dyn"); | |
7393 | BFD_ASSERT (s != NULL); | |
7394 | dyn.d_un.d_val = sizeof (Elf32_External_Rel); | |
7395 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7396 | break; | |
7397 | ||
7398 | case DT_STRSZ: | |
7399 | /* Rewrite DT_STRSZ. */ | |
7400 | dyn.d_un.d_val = | |
7401 | _bfd_stringtab_size (elf_hash_table (info)->dynstr); | |
7402 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7403 | break; | |
7404 | ||
7405 | case DT_PLTGOT: | |
7406 | name = ".got"; | |
7407 | goto get_vma; | |
7408 | case DT_MIPS_CONFLICT: | |
7409 | name = ".conflict"; | |
7410 | goto get_vma; | |
7411 | case DT_MIPS_LIBLIST: | |
7412 | name = ".liblist"; | |
7413 | get_vma: | |
7414 | s = bfd_get_section_by_name (output_bfd, name); | |
7415 | BFD_ASSERT (s != NULL); | |
7416 | dyn.d_un.d_ptr = s->vma; | |
7417 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7418 | break; | |
7419 | ||
7420 | case DT_MIPS_RLD_VERSION: | |
7421 | dyn.d_un.d_val = 1; /* XXX */ | |
7422 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7423 | break; | |
7424 | ||
7425 | case DT_MIPS_FLAGS: | |
7426 | dyn.d_un.d_val = RHF_NOTPOT; /* XXX */ | |
7427 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7428 | break; | |
7429 | ||
7430 | case DT_MIPS_CONFLICTNO: | |
7431 | name = ".conflict"; | |
7432 | elemsize = sizeof (Elf32_Conflict); | |
7433 | goto set_elemno; | |
7434 | ||
7435 | case DT_MIPS_LIBLISTNO: | |
7436 | name = ".liblist"; | |
7437 | elemsize = sizeof (Elf32_Lib); | |
7438 | set_elemno: | |
7439 | s = bfd_get_section_by_name (output_bfd, name); | |
7440 | if (s != NULL) | |
7441 | { | |
7442 | if (s->_cooked_size != 0) | |
7443 | dyn.d_un.d_val = s->_cooked_size / elemsize; | |
7444 | else | |
7445 | dyn.d_un.d_val = s->_raw_size / elemsize; | |
7446 | } | |
7447 | else | |
7448 | dyn.d_un.d_val = 0; | |
7449 | ||
7450 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7451 | break; | |
7452 | ||
7453 | case DT_MIPS_TIME_STAMP: | |
7454 | time ((time_t *) &dyn.d_un.d_val); | |
7455 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7456 | break; | |
ff12f303 | 7457 | |
5b3b9ff6 ILT |
7458 | case DT_MIPS_ICHECKSUM: |
7459 | /* XXX FIXME: */ | |
7460 | break; | |
7461 | ||
7462 | case DT_MIPS_IVERSION: | |
7463 | /* XXX FIXME: */ | |
7464 | break; | |
7465 | ||
7466 | case DT_MIPS_BASE_ADDRESS: | |
7467 | s = output_bfd->sections; | |
7468 | BFD_ASSERT (s != NULL); | |
7469 | dyn.d_un.d_ptr = s->vma & ~(0xffff); | |
7470 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7471 | break; | |
7472 | ||
7473 | case DT_MIPS_LOCAL_GOTNO: | |
7474 | dyn.d_un.d_val = g->local_gotno; | |
7475 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7476 | break; | |
7477 | ||
7478 | case DT_MIPS_SYMTABNO: | |
7479 | name = ".dynsym"; | |
7480 | elemsize = sizeof (Elf32_External_Sym); | |
7481 | s = bfd_get_section_by_name (output_bfd, name); | |
7482 | BFD_ASSERT (s != NULL); | |
7483 | ||
7484 | if (s->_cooked_size != 0) | |
7485 | dyn.d_un.d_val = s->_cooked_size / elemsize; | |
7486 | else | |
7487 | dyn.d_un.d_val = s->_raw_size / elemsize; | |
7488 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7489 | break; | |
7490 | ||
7491 | case DT_MIPS_UNREFEXTNO: | |
7492 | /* XXX FIXME: */ | |
7493 | dyn.d_un.d_val = SIZEOF_MIPS_DYNSYM_SECNAMES; | |
7494 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7495 | break; | |
7496 | ||
7497 | case DT_MIPS_GOTSYM: | |
7498 | dyn.d_un.d_val = g->global_gotsym; | |
7499 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7500 | break; | |
7501 | ||
7502 | case DT_MIPS_HIPAGENO: | |
7503 | dyn.d_un.d_val = g->local_gotno - MIPS_RESERVED_GOTNO; | |
7504 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7505 | break; | |
7506 | ||
eb52b9dc ILT |
7507 | case DT_MIPS_RLD_MAP: |
7508 | dyn.d_un.d_ptr = mips_elf_hash_table (info)->rld_value; | |
7509 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
7510 | break; | |
7511 | ||
5b3b9ff6 ILT |
7512 | } |
7513 | } | |
7514 | } | |
7515 | ||
7516 | /* The first entry of the global offset table will be filled at | |
7517 | runtime. The second entry will be used by some runtime loaders. | |
7518 | This isn't the case of Irix rld. */ | |
4da624dd | 7519 | if (sgot != NULL && sgot->_raw_size > 0) |
5b3b9ff6 ILT |
7520 | { |
7521 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
7522 | bfd_put_32 (output_bfd, (bfd_vma) 0x80000000, sgot->contents + 4); | |
7523 | } | |
7524 | ||
4da624dd ILT |
7525 | if (sgot != NULL) |
7526 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
5b3b9ff6 | 7527 | |
53787b23 ILT |
7528 | { |
7529 | asection *sdynsym; | |
7530 | asection *s; | |
7531 | unsigned int i; | |
7532 | bfd_vma last; | |
7533 | Elf_Internal_Sym sym; | |
7534 | long dindx; | |
7535 | const char *name; | |
7536 | const char * const * namep = mips_elf_dynsym_sec_names; | |
7537 | Elf32_compact_rel cpt; | |
7538 | ||
7539 | /* Set up the section symbols for the output sections. SGI sets | |
7540 | the STT_NOTYPE attribute for these symbols. Should we do so? */ | |
7541 | ||
7542 | sdynsym = bfd_get_section_by_name (dynobj, ".dynsym"); | |
7543 | if (sdynsym != NULL) | |
7544 | { | |
7545 | if (SGI_COMPAT (output_bfd)) | |
7546 | { | |
7547 | sym.st_size = 0; | |
7548 | sym.st_name = 0; | |
7549 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE); | |
7550 | sym.st_other = 0; | |
5b3b9ff6 | 7551 | |
53787b23 | 7552 | i = 0; |
edac2b4c DE |
7553 | last = 0; |
7554 | dindx = 0; | |
53787b23 ILT |
7555 | while ((name = *namep++) != NULL) |
7556 | { | |
7557 | s = bfd_get_section_by_name (output_bfd, name); | |
7558 | if (s != NULL) | |
7559 | { | |
7560 | sym.st_value = s->vma; | |
7561 | dindx = elf_section_data (s)->dynindx; | |
7562 | last = s->vma + s->_raw_size; | |
7563 | } | |
7564 | else | |
7565 | { | |
7566 | sym.st_value = last; | |
7567 | dindx++; | |
7568 | } | |
5b3b9ff6 | 7569 | |
53787b23 ILT |
7570 | sym.st_shndx = (i < MIPS_TEXT_DYNSYM_SECNO |
7571 | ? SHN_MIPS_TEXT | |
7572 | : SHN_MIPS_DATA); | |
7573 | ++i; | |
7574 | sym.st_name = | |
7575 | mips_elf_hash_table (info)->dynsym_sec_strindex[dindx]; | |
7576 | ||
7577 | bfd_elf32_swap_symbol_out (output_bfd, &sym, | |
7578 | (((Elf32_External_Sym *) | |
7579 | sdynsym->contents) | |
7580 | + dindx)); | |
7581 | } | |
5b3b9ff6 | 7582 | |
53787b23 ILT |
7583 | /* Set the sh_info field of the output .dynsym section to |
7584 | the index of the first global symbol. */ | |
7585 | elf_section_data (sdynsym->output_section)->this_hdr.sh_info = | |
7586 | SIZEOF_MIPS_DYNSYM_SECNAMES; | |
7587 | } | |
7588 | else | |
7589 | { | |
7590 | sym.st_size = 0; | |
7591 | sym.st_name = 0; | |
7592 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
7593 | sym.st_other = 0; | |
5b3b9ff6 | 7594 | |
53787b23 ILT |
7595 | for (s = output_bfd->sections; s != NULL; s = s->next) |
7596 | { | |
7597 | int indx; | |
5b3b9ff6 | 7598 | |
53787b23 | 7599 | sym.st_value = s->vma; |
5b3b9ff6 | 7600 | |
53787b23 ILT |
7601 | indx = elf_section_data (s)->this_idx; |
7602 | BFD_ASSERT (indx > 0); | |
7603 | sym.st_shndx = indx; | |
5b3b9ff6 | 7604 | |
53787b23 ILT |
7605 | bfd_elf32_swap_symbol_out (output_bfd, &sym, |
7606 | (((Elf32_External_Sym *) | |
7607 | sdynsym->contents) | |
7608 | + elf_section_data (s)->dynindx)); | |
7609 | } | |
5b3b9ff6 | 7610 | |
53787b23 ILT |
7611 | /* Set the sh_info field of the output .dynsym section to |
7612 | the index of the first global symbol. */ | |
7613 | elf_section_data (sdynsym->output_section)->this_hdr.sh_info = | |
7614 | bfd_count_sections (output_bfd) + 1; | |
7615 | } | |
7616 | } | |
5b3b9ff6 | 7617 | |
53787b23 ILT |
7618 | if (SGI_COMPAT (output_bfd)) |
7619 | { | |
7620 | /* Write .compact_rel section out. */ | |
7621 | s = bfd_get_section_by_name (dynobj, ".compact_rel"); | |
7622 | if (s != NULL) | |
7623 | { | |
7624 | cpt.id1 = 1; | |
7625 | cpt.num = s->reloc_count; | |
7626 | cpt.id2 = 2; | |
7627 | cpt.offset = (s->output_section->filepos | |
7628 | + sizeof (Elf32_External_compact_rel)); | |
7629 | cpt.reserved0 = 0; | |
7630 | cpt.reserved1 = 0; | |
ff12f303 | 7631 | bfd_elf32_swap_compact_rel_out (output_bfd, &cpt, |
53787b23 ILT |
7632 | ((Elf32_External_compact_rel *) |
7633 | s->contents)); | |
7634 | ||
7635 | /* Clean up a dummy stub function entry in .text. */ | |
7636 | s = bfd_get_section_by_name (dynobj, ".stub"); | |
7637 | if (s != NULL) | |
7638 | { | |
7639 | file_ptr dummy_offset; | |
5b3b9ff6 | 7640 | |
53787b23 ILT |
7641 | BFD_ASSERT (s->_raw_size >= MIPS_FUNCTION_STUB_SIZE); |
7642 | dummy_offset = s->_raw_size - MIPS_FUNCTION_STUB_SIZE; | |
7643 | memset (s->contents + dummy_offset, 0, | |
7644 | MIPS_FUNCTION_STUB_SIZE); | |
7645 | } | |
7646 | } | |
7647 | } | |
5b3b9ff6 | 7648 | |
53787b23 ILT |
7649 | /* Clean up a first relocation in .rel.dyn. */ |
7650 | s = bfd_get_section_by_name (dynobj, ".rel.dyn"); | |
4da624dd | 7651 | if (s != NULL && s->_raw_size > 0) |
53787b23 ILT |
7652 | memset (s->contents, 0, sizeof (Elf32_External_Rel)); |
7653 | } | |
5b3b9ff6 ILT |
7654 | |
7655 | return true; | |
7656 | } | |
7657 | \f | |
7658 | /* This is almost identical to bfd_generic_get_... except that some | |
7659 | MIPS relocations need to be handled specially. Sigh. */ | |
7660 | ||
7661 | static bfd_byte * | |
7662 | elf32_mips_get_relocated_section_contents (abfd, link_info, link_order, data, | |
7663 | relocateable, symbols) | |
7664 | bfd *abfd; | |
7665 | struct bfd_link_info *link_info; | |
7666 | struct bfd_link_order *link_order; | |
7667 | bfd_byte *data; | |
7668 | boolean relocateable; | |
7669 | asymbol **symbols; | |
7670 | { | |
7671 | /* Get enough memory to hold the stuff */ | |
7672 | bfd *input_bfd = link_order->u.indirect.section->owner; | |
7673 | asection *input_section = link_order->u.indirect.section; | |
7674 | ||
7675 | long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); | |
7676 | arelent **reloc_vector = NULL; | |
7677 | long reloc_count; | |
7678 | ||
7679 | if (reloc_size < 0) | |
7680 | goto error_return; | |
7681 | ||
7682 | reloc_vector = (arelent **) bfd_malloc (reloc_size); | |
7683 | if (reloc_vector == NULL && reloc_size != 0) | |
7684 | goto error_return; | |
7685 | ||
a16fcab3 KR |
7686 | /* read in the section */ |
7687 | if (!bfd_get_section_contents (input_bfd, | |
7688 | input_section, | |
7689 | (PTR) data, | |
7690 | 0, | |
7691 | input_section->_raw_size)) | |
7692 | goto error_return; | |
7693 | ||
7694 | /* We're not relaxing the section, so just copy the size info */ | |
7695 | input_section->_cooked_size = input_section->_raw_size; | |
7696 | input_section->reloc_done = true; | |
7697 | ||
7698 | reloc_count = bfd_canonicalize_reloc (input_bfd, | |
7699 | input_section, | |
7700 | reloc_vector, | |
7701 | symbols); | |
7702 | if (reloc_count < 0) | |
7703 | goto error_return; | |
7704 | ||
7705 | if (reloc_count > 0) | |
7706 | { | |
7707 | arelent **parent; | |
7708 | /* for mips */ | |
7709 | int gp_found; | |
ede4eed4 | 7710 | bfd_vma gp = 0x12345678; /* initialize just to shut gcc up */ |
a16fcab3 KR |
7711 | |
7712 | { | |
7713 | struct bfd_hash_entry *h; | |
7714 | struct bfd_link_hash_entry *lh; | |
7715 | /* Skip all this stuff if we aren't mixing formats. */ | |
7716 | if (abfd && input_bfd | |
7717 | && abfd->xvec == input_bfd->xvec) | |
7718 | lh = 0; | |
7719 | else | |
7720 | { | |
a2546fce | 7721 | h = bfd_hash_lookup (&link_info->hash->table, "_gp", false, false); |
a16fcab3 KR |
7722 | lh = (struct bfd_link_hash_entry *) h; |
7723 | } | |
7724 | lookup: | |
7725 | if (lh) | |
7726 | { | |
7727 | switch (lh->type) | |
7728 | { | |
7729 | case bfd_link_hash_undefined: | |
7730 | case bfd_link_hash_undefweak: | |
7731 | case bfd_link_hash_common: | |
7732 | gp_found = 0; | |
7733 | break; | |
7734 | case bfd_link_hash_defined: | |
7735 | case bfd_link_hash_defweak: | |
7736 | gp_found = 1; | |
7737 | gp = lh->u.def.value; | |
7738 | break; | |
7739 | case bfd_link_hash_indirect: | |
7740 | case bfd_link_hash_warning: | |
7741 | lh = lh->u.i.link; | |
7742 | /* @@FIXME ignoring warning for now */ | |
7743 | goto lookup; | |
7744 | case bfd_link_hash_new: | |
7745 | default: | |
7746 | abort (); | |
7747 | } | |
7748 | } | |
7749 | else | |
7750 | gp_found = 0; | |
7751 | } | |
7752 | /* end mips */ | |
7753 | for (parent = reloc_vector; *parent != (arelent *) NULL; | |
7754 | parent++) | |
7755 | { | |
7756 | char *error_message = (char *) NULL; | |
7757 | bfd_reloc_status_type r; | |
7758 | ||
7759 | /* Specific to MIPS: Deal with relocation types that require | |
7760 | knowing the gp of the output bfd. */ | |
7761 | asymbol *sym = *(*parent)->sym_ptr_ptr; | |
7762 | if (bfd_is_abs_section (sym->section) && abfd) | |
7763 | { | |
7764 | /* The special_function wouldn't get called anyways. */ | |
7765 | } | |
7766 | else if (!gp_found) | |
7767 | { | |
7768 | /* The gp isn't there; let the special function code | |
7769 | fall over on its own. */ | |
7770 | } | |
5b3b9ff6 | 7771 | else if ((*parent)->howto->special_function |
bc05732b | 7772 | == _bfd_mips_elf_gprel16_reloc) |
a16fcab3 KR |
7773 | { |
7774 | /* bypass special_function call */ | |
7775 | r = gprel16_with_gp (input_bfd, sym, *parent, input_section, | |
7776 | relocateable, (PTR) data, gp); | |
7777 | goto skip_bfd_perform_relocation; | |
7778 | } | |
7779 | /* end mips specific stuff */ | |
7780 | ||
7781 | r = bfd_perform_relocation (input_bfd, | |
7782 | *parent, | |
7783 | (PTR) data, | |
7784 | input_section, | |
7785 | relocateable ? abfd : (bfd *) NULL, | |
7786 | &error_message); | |
7787 | skip_bfd_perform_relocation: | |
7788 | ||
7789 | if (relocateable) | |
7790 | { | |
7791 | asection *os = input_section->output_section; | |
7792 | ||
7793 | /* A partial link, so keep the relocs */ | |
7794 | os->orelocation[os->reloc_count] = *parent; | |
7795 | os->reloc_count++; | |
7796 | } | |
7797 | ||
7798 | if (r != bfd_reloc_ok) | |
7799 | { | |
7800 | switch (r) | |
7801 | { | |
7802 | case bfd_reloc_undefined: | |
7803 | if (!((*link_info->callbacks->undefined_symbol) | |
7804 | (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
7805 | input_bfd, input_section, (*parent)->address))) | |
7806 | goto error_return; | |
7807 | break; | |
7808 | case bfd_reloc_dangerous: | |
7809 | BFD_ASSERT (error_message != (char *) NULL); | |
7810 | if (!((*link_info->callbacks->reloc_dangerous) | |
7811 | (link_info, error_message, input_bfd, input_section, | |
7812 | (*parent)->address))) | |
7813 | goto error_return; | |
7814 | break; | |
7815 | case bfd_reloc_overflow: | |
7816 | if (!((*link_info->callbacks->reloc_overflow) | |
7817 | (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), | |
7818 | (*parent)->howto->name, (*parent)->addend, | |
7819 | input_bfd, input_section, (*parent)->address))) | |
7820 | goto error_return; | |
7821 | break; | |
7822 | case bfd_reloc_outofrange: | |
7823 | default: | |
7824 | abort (); | |
7825 | break; | |
7826 | } | |
7827 | ||
7828 | } | |
7829 | } | |
7830 | } | |
7831 | if (reloc_vector != NULL) | |
7832 | free (reloc_vector); | |
7833 | return data; | |
7834 | ||
7835 | error_return: | |
7836 | if (reloc_vector != NULL) | |
7837 | free (reloc_vector); | |
7838 | return NULL; | |
7839 | } | |
5b3b9ff6 ILT |
7840 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
7841 | elf32_mips_get_relocated_section_contents | |
a16fcab3 | 7842 | \f |
6e07e54f ILT |
7843 | /* ECOFF swapping routines. These are used when dealing with the |
7844 | .mdebug section, which is in the ECOFF debugging format. */ | |
00176555 | 7845 | static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = |
6e07e54f ILT |
7846 | { |
7847 | /* Symbol table magic number. */ | |
7848 | magicSym, | |
7849 | /* Alignment of debugging information. E.g., 4. */ | |
7850 | 4, | |
7851 | /* Sizes of external symbolic information. */ | |
7852 | sizeof (struct hdr_ext), | |
7853 | sizeof (struct dnr_ext), | |
7854 | sizeof (struct pdr_ext), | |
7855 | sizeof (struct sym_ext), | |
7856 | sizeof (struct opt_ext), | |
7857 | sizeof (struct fdr_ext), | |
7858 | sizeof (struct rfd_ext), | |
7859 | sizeof (struct ext_ext), | |
7860 | /* Functions to swap in external symbolic data. */ | |
7861 | ecoff_swap_hdr_in, | |
7862 | ecoff_swap_dnr_in, | |
7863 | ecoff_swap_pdr_in, | |
7864 | ecoff_swap_sym_in, | |
7865 | ecoff_swap_opt_in, | |
7866 | ecoff_swap_fdr_in, | |
7867 | ecoff_swap_rfd_in, | |
7868 | ecoff_swap_ext_in, | |
75f3ef7a ILT |
7869 | _bfd_ecoff_swap_tir_in, |
7870 | _bfd_ecoff_swap_rndx_in, | |
6e07e54f ILT |
7871 | /* Functions to swap out external symbolic data. */ |
7872 | ecoff_swap_hdr_out, | |
7873 | ecoff_swap_dnr_out, | |
7874 | ecoff_swap_pdr_out, | |
7875 | ecoff_swap_sym_out, | |
7876 | ecoff_swap_opt_out, | |
7877 | ecoff_swap_fdr_out, | |
7878 | ecoff_swap_rfd_out, | |
aac6b32f | 7879 | ecoff_swap_ext_out, |
75f3ef7a ILT |
7880 | _bfd_ecoff_swap_tir_out, |
7881 | _bfd_ecoff_swap_rndx_out, | |
aac6b32f | 7882 | /* Function to read in symbolic data. */ |
00176555 | 7883 | _bfd_mips_elf_read_ecoff_info |
6e07e54f ILT |
7884 | }; |
7885 | \f | |
6b4b4d17 JK |
7886 | #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec |
7887 | #define TARGET_LITTLE_NAME "elf32-littlemips" | |
7888 | #define TARGET_BIG_SYM bfd_elf32_bigmips_vec | |
7889 | #define TARGET_BIG_NAME "elf32-bigmips" | |
7890 | #define ELF_ARCH bfd_arch_mips | |
6e07e54f | 7891 | #define ELF_MACHINE_CODE EM_MIPS |
9b292d4c ILT |
7892 | |
7893 | /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses | |
7894 | a value of 0x1000, and we are compatible. */ | |
7895 | #define ELF_MAXPAGESIZE 0x1000 | |
7896 | ||
497c5434 | 7897 | #define elf_backend_collect true |
5b3b9ff6 | 7898 | #define elf_backend_type_change_ok true |
303b4cc6 | 7899 | #define elf_backend_can_gc_sections true |
b3c0fc57 ILT |
7900 | #define elf_info_to_howto 0 |
7901 | #define elf_info_to_howto_rel mips_info_to_howto_rel | |
6e07e54f | 7902 | #define elf_backend_sym_is_global mips_elf_sym_is_global |
00176555 | 7903 | #define elf_backend_object_p mips_elf32_object_p |
d1bf45aa | 7904 | #define elf_backend_section_from_shdr mips_elf32_section_from_shdr |
00176555 | 7905 | #define elf_backend_fake_sections _bfd_mips_elf_fake_sections |
b3c0fc57 | 7906 | #define elf_backend_section_from_bfd_section \ |
00176555 ILT |
7907 | _bfd_mips_elf_section_from_bfd_section |
7908 | #define elf_backend_section_processing mips_elf32_section_processing | |
7909 | #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing | |
5b3b9ff6 ILT |
7910 | #define elf_backend_additional_program_headers \ |
7911 | mips_elf_additional_program_headers | |
7912 | #define elf_backend_modify_segment_map mips_elf_modify_segment_map | |
6e07e54f | 7913 | #define elf_backend_final_write_processing \ |
00176555 ILT |
7914 | _bfd_mips_elf_final_write_processing |
7915 | #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap | |
b3c0fc57 | 7916 | |
7d996a75 ILT |
7917 | #define bfd_elf32_bfd_is_local_label_name \ |
7918 | mips_elf_is_local_label_name | |
bc05732b ILT |
7919 | #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line |
7920 | #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents | |
aac6b32f ILT |
7921 | #define bfd_elf32_bfd_link_hash_table_create \ |
7922 | mips_elf_link_hash_table_create | |
6e07e54f | 7923 | #define bfd_elf32_bfd_final_link mips_elf_final_link |
5b3b9ff6 | 7924 | #define bfd_elf32_bfd_copy_private_bfd_data \ |
bc05732b | 7925 | _bfd_mips_elf_copy_private_bfd_data |
5b3b9ff6 | 7926 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
bc05732b ILT |
7927 | _bfd_mips_elf_merge_private_bfd_data |
7928 | #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags | |
aac6b32f | 7929 | #define elf_backend_add_symbol_hook mips_elf_add_symbol_hook |
5b3b9ff6 ILT |
7930 | #define elf_backend_create_dynamic_sections \ |
7931 | mips_elf_create_dynamic_sections | |
7932 | #define elf_backend_check_relocs mips_elf_check_relocs | |
7933 | #define elf_backend_adjust_dynamic_symbol \ | |
7934 | mips_elf_adjust_dynamic_symbol | |
e900e695 ILT |
7935 | #define elf_backend_always_size_sections \ |
7936 | mips_elf_always_size_sections | |
5b3b9ff6 ILT |
7937 | #define elf_backend_size_dynamic_sections \ |
7938 | mips_elf_size_dynamic_sections | |
7939 | #define elf_backend_relocate_section mips_elf_relocate_section | |
e4f4813f ILT |
7940 | #define elf_backend_link_output_symbol_hook \ |
7941 | mips_elf_link_output_symbol_hook | |
5b3b9ff6 ILT |
7942 | #define elf_backend_finish_dynamic_symbol \ |
7943 | mips_elf_finish_dynamic_symbol | |
7944 | #define elf_backend_finish_dynamic_sections \ | |
7945 | mips_elf_finish_dynamic_sections | |
303b4cc6 RH |
7946 | #define elf_backend_gc_mark_hook mips_elf_gc_mark_hook |
7947 | #define elf_backend_gc_sweep_hook mips_elf_gc_sweep_hook | |
6b4b4d17 | 7948 | |
5e37b2da UD |
7949 | #define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO) |
7950 | #define elf_backend_plt_header_size 0 | |
7951 | ||
6b4b4d17 | 7952 | #include "elf32-target.h" |