Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
b3adc24a | 3 | Copyright (C) 1993-2020 Free Software Foundation, Inc. |
252b5132 | 4 | |
5e8d7549 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
5e8d7549 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 10 | (at your option) any later version. |
252b5132 | 11 | |
5e8d7549 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
5e8d7549 | 17 | You should have received a copy of the GNU General Public License |
b34976b6 | 18 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 | 22 | |
1b74d094 BW |
23 | /* |
24 | SECTION | |
252b5132 RH |
25 | ELF backends |
26 | ||
27 | BFD support for ELF formats is being worked on. | |
28 | Currently, the best supported back ends are for sparc and i386 | |
29 | (running svr4 or Solaris 2). | |
30 | ||
31 | Documentation of the internals of the support code still needs | |
32 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 33 | haven't bothered yet. */ |
252b5132 | 34 | |
7ee38065 MS |
35 | /* For sparc64-cross-sparc32. */ |
36 | #define _SYSCALL32 | |
252b5132 | 37 | #include "sysdep.h" |
3a551c7a | 38 | #include <limits.h> |
3db64b00 | 39 | #include "bfd.h" |
252b5132 RH |
40 | #include "bfdlink.h" |
41 | #include "libbfd.h" | |
42 | #define ARCH_SIZE 0 | |
43 | #include "elf-bfd.h" | |
e0e8c97f | 44 | #include "libiberty.h" |
ff59fc36 | 45 | #include "safe-ctype.h" |
de64ce13 | 46 | #include "elf-linux-core.h" |
252b5132 | 47 | |
8bc7f138 L |
48 | #ifdef CORE_HEADER |
49 | #include CORE_HEADER | |
50 | #endif | |
51 | ||
217aa764 | 52 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 53 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
ef10c3ac | 54 | static bfd_boolean swap_out_syms (bfd *, struct elf_strtab_hash **, int) ; |
718175fa | 55 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, |
276da9b3 | 56 | file_ptr offset, size_t align); |
50b2bdb7 | 57 | |
252b5132 RH |
58 | /* Swap version information in and out. The version information is |
59 | currently size independent. If that ever changes, this code will | |
60 | need to move into elfcode.h. */ | |
61 | ||
62 | /* Swap in a Verdef structure. */ | |
63 | ||
64 | void | |
217aa764 AM |
65 | _bfd_elf_swap_verdef_in (bfd *abfd, |
66 | const Elf_External_Verdef *src, | |
67 | Elf_Internal_Verdef *dst) | |
252b5132 | 68 | { |
dc810e39 AM |
69 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
70 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
71 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
72 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
73 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
74 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
75 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
76 | } |
77 | ||
78 | /* Swap out a Verdef structure. */ | |
79 | ||
80 | void | |
217aa764 AM |
81 | _bfd_elf_swap_verdef_out (bfd *abfd, |
82 | const Elf_Internal_Verdef *src, | |
83 | Elf_External_Verdef *dst) | |
252b5132 | 84 | { |
dc810e39 AM |
85 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
86 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
87 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
88 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
89 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
90 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
91 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
92 | } |
93 | ||
94 | /* Swap in a Verdaux structure. */ | |
95 | ||
96 | void | |
217aa764 AM |
97 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
98 | const Elf_External_Verdaux *src, | |
99 | Elf_Internal_Verdaux *dst) | |
252b5132 | 100 | { |
dc810e39 AM |
101 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
102 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
103 | } |
104 | ||
105 | /* Swap out a Verdaux structure. */ | |
106 | ||
107 | void | |
217aa764 AM |
108 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
109 | const Elf_Internal_Verdaux *src, | |
110 | Elf_External_Verdaux *dst) | |
252b5132 | 111 | { |
dc810e39 AM |
112 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
113 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
114 | } |
115 | ||
116 | /* Swap in a Verneed structure. */ | |
117 | ||
118 | void | |
217aa764 AM |
119 | _bfd_elf_swap_verneed_in (bfd *abfd, |
120 | const Elf_External_Verneed *src, | |
121 | Elf_Internal_Verneed *dst) | |
252b5132 | 122 | { |
dc810e39 AM |
123 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
124 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
125 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
126 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
127 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
128 | } |
129 | ||
130 | /* Swap out a Verneed structure. */ | |
131 | ||
132 | void | |
217aa764 AM |
133 | _bfd_elf_swap_verneed_out (bfd *abfd, |
134 | const Elf_Internal_Verneed *src, | |
135 | Elf_External_Verneed *dst) | |
252b5132 | 136 | { |
dc810e39 AM |
137 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
138 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
139 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
140 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
141 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
142 | } |
143 | ||
144 | /* Swap in a Vernaux structure. */ | |
145 | ||
146 | void | |
217aa764 AM |
147 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
148 | const Elf_External_Vernaux *src, | |
149 | Elf_Internal_Vernaux *dst) | |
252b5132 | 150 | { |
dc810e39 AM |
151 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
152 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
153 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
154 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
155 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
156 | } |
157 | ||
158 | /* Swap out a Vernaux structure. */ | |
159 | ||
160 | void | |
217aa764 AM |
161 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
162 | const Elf_Internal_Vernaux *src, | |
163 | Elf_External_Vernaux *dst) | |
252b5132 | 164 | { |
dc810e39 AM |
165 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
166 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
167 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
168 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
169 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
170 | } |
171 | ||
172 | /* Swap in a Versym structure. */ | |
173 | ||
174 | void | |
217aa764 AM |
175 | _bfd_elf_swap_versym_in (bfd *abfd, |
176 | const Elf_External_Versym *src, | |
177 | Elf_Internal_Versym *dst) | |
252b5132 | 178 | { |
dc810e39 | 179 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
180 | } |
181 | ||
182 | /* Swap out a Versym structure. */ | |
183 | ||
184 | void | |
217aa764 AM |
185 | _bfd_elf_swap_versym_out (bfd *abfd, |
186 | const Elf_Internal_Versym *src, | |
187 | Elf_External_Versym *dst) | |
252b5132 | 188 | { |
dc810e39 | 189 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
190 | } |
191 | ||
192 | /* Standard ELF hash function. Do not change this function; you will | |
193 | cause invalid hash tables to be generated. */ | |
3a99b017 | 194 | |
252b5132 | 195 | unsigned long |
217aa764 | 196 | bfd_elf_hash (const char *namearg) |
252b5132 | 197 | { |
3a99b017 | 198 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
199 | unsigned long h = 0; |
200 | unsigned long g; | |
201 | int ch; | |
202 | ||
203 | while ((ch = *name++) != '\0') | |
204 | { | |
205 | h = (h << 4) + ch; | |
206 | if ((g = (h & 0xf0000000)) != 0) | |
207 | { | |
208 | h ^= g >> 24; | |
209 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
210 | this case and on some machines one insn instead of two. */ | |
211 | h ^= g; | |
212 | } | |
213 | } | |
32dfa85d | 214 | return h & 0xffffffff; |
252b5132 RH |
215 | } |
216 | ||
fdc90cb4 JJ |
217 | /* DT_GNU_HASH hash function. Do not change this function; you will |
218 | cause invalid hash tables to be generated. */ | |
219 | ||
220 | unsigned long | |
221 | bfd_elf_gnu_hash (const char *namearg) | |
222 | { | |
223 | const unsigned char *name = (const unsigned char *) namearg; | |
224 | unsigned long h = 5381; | |
225 | unsigned char ch; | |
226 | ||
227 | while ((ch = *name++) != '\0') | |
228 | h = (h << 5) + h + ch; | |
229 | return h & 0xffffffff; | |
230 | } | |
231 | ||
0c8d6e5c AM |
232 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
233 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
b34976b6 | 234 | bfd_boolean |
0c8d6e5c | 235 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 236 | size_t object_size, |
4dfe6ac6 | 237 | enum elf_target_id object_id) |
252b5132 | 238 | { |
0ffa91dd NC |
239 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
240 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
241 | if (abfd->tdata.any == NULL) | |
242 | return FALSE; | |
252b5132 | 243 | |
0ffa91dd | 244 | elf_object_id (abfd) = object_id; |
c0355132 AM |
245 | if (abfd->direction != read_direction) |
246 | { | |
247 | struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o); | |
248 | if (o == NULL) | |
249 | return FALSE; | |
250 | elf_tdata (abfd)->o = o; | |
251 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
252 | } | |
b34976b6 | 253 | return TRUE; |
252b5132 RH |
254 | } |
255 | ||
0ffa91dd NC |
256 | |
257 | bfd_boolean | |
ae95ffa6 | 258 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 259 | { |
ae95ffa6 | 260 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 261 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 262 | bed->target_id); |
0ffa91dd NC |
263 | } |
264 | ||
b34976b6 | 265 | bfd_boolean |
217aa764 | 266 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 267 | { |
c044fabd | 268 | /* I think this can be done just like an object file. */ |
228e534f AM |
269 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
270 | return FALSE; | |
271 | elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core)); | |
272 | return elf_tdata (abfd)->core != NULL; | |
252b5132 RH |
273 | } |
274 | ||
6d5944fc | 275 | char * |
217aa764 | 276 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
277 | { |
278 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 279 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
280 | file_ptr offset; |
281 | bfd_size_type shstrtabsize; | |
252b5132 RH |
282 | |
283 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
284 | if (i_shdrp == 0 |
285 | || shindex >= elf_numsections (abfd) | |
286 | || i_shdrp[shindex] == 0) | |
f075ee0c | 287 | return NULL; |
252b5132 | 288 | |
f075ee0c | 289 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
290 | if (shstrtab == NULL) |
291 | { | |
c044fabd | 292 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
293 | offset = i_shdrp[shindex]->sh_offset; |
294 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
295 | |
296 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
297 | in case the string table is not terminated. */ | |
3471d59d | 298 | if (shstrtabsize + 1 <= 1 |
06614111 | 299 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
2bb3687b AM |
300 | || (shstrtab = _bfd_alloc_and_read (abfd, shstrtabsize + 1, |
301 | shstrtabsize)) == NULL) | |
302 | { | |
3471d59d CC |
303 | /* Once we've failed to read it, make sure we don't keep |
304 | trying. Otherwise, we'll keep allocating space for | |
305 | the string table over and over. */ | |
306 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
307 | } |
308 | else | |
309 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 310 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 311 | } |
f075ee0c | 312 | return (char *) shstrtab; |
252b5132 RH |
313 | } |
314 | ||
315 | char * | |
217aa764 AM |
316 | bfd_elf_string_from_elf_section (bfd *abfd, |
317 | unsigned int shindex, | |
318 | unsigned int strindex) | |
252b5132 RH |
319 | { |
320 | Elf_Internal_Shdr *hdr; | |
321 | ||
322 | if (strindex == 0) | |
323 | return ""; | |
324 | ||
74f2e02b AM |
325 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
326 | return NULL; | |
327 | ||
252b5132 RH |
328 | hdr = elf_elfsections (abfd)[shindex]; |
329 | ||
06614111 NC |
330 | if (hdr->contents == NULL) |
331 | { | |
332 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
333 | { | |
334 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 335 | /* xgettext:c-format */ |
871b3ab2 | 336 | _bfd_error_handler (_("%pB: attempt to load strings from" |
63a5468a | 337 | " a non-string section (number %d)"), |
06614111 NC |
338 | abfd, shindex); |
339 | return NULL; | |
340 | } | |
b1fa9dd6 | 341 | |
06614111 NC |
342 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
343 | return NULL; | |
344 | } | |
eed5def8 NC |
345 | else |
346 | { | |
347 | /* PR 24273: The string section's contents may have already | |
348 | been loaded elsewhere, eg because a corrupt file has the | |
349 | string section index in the ELF header pointing at a group | |
350 | section. So be paranoid, and test that the last byte of | |
351 | the section is zero. */ | |
352 | if (hdr->sh_size == 0 || hdr->contents[hdr->sh_size - 1] != 0) | |
353 | return NULL; | |
354 | } | |
252b5132 RH |
355 | |
356 | if (strindex >= hdr->sh_size) | |
357 | { | |
1b3a8575 | 358 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 359 | _bfd_error_handler |
695344c0 | 360 | /* xgettext:c-format */ |
2dcf00ce AM |
361 | (_("%pB: invalid string offset %u >= %" PRIu64 " for section `%s'"), |
362 | abfd, strindex, (uint64_t) hdr->sh_size, | |
1b3a8575 | 363 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 364 | ? ".shstrtab" |
1b3a8575 | 365 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 366 | return NULL; |
252b5132 RH |
367 | } |
368 | ||
369 | return ((char *) hdr->contents) + strindex; | |
370 | } | |
371 | ||
6cdc0ccc AM |
372 | /* Read and convert symbols to internal format. |
373 | SYMCOUNT specifies the number of symbols to read, starting from | |
374 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
375 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
376 | symbols, and symbol section index extensions, respectively. |
377 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
378 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
379 | |
380 | Elf_Internal_Sym * | |
217aa764 AM |
381 | bfd_elf_get_elf_syms (bfd *ibfd, |
382 | Elf_Internal_Shdr *symtab_hdr, | |
383 | size_t symcount, | |
384 | size_t symoffset, | |
385 | Elf_Internal_Sym *intsym_buf, | |
386 | void *extsym_buf, | |
387 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
388 | { |
389 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 390 | void *alloc_ext; |
df622259 | 391 | const bfd_byte *esym; |
6cdc0ccc AM |
392 | Elf_External_Sym_Shndx *alloc_extshndx; |
393 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 394 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
395 | Elf_Internal_Sym *isym; |
396 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 397 | const struct elf_backend_data *bed; |
6cdc0ccc | 398 | size_t extsym_size; |
1f4361a7 | 399 | size_t amt; |
6cdc0ccc AM |
400 | file_ptr pos; |
401 | ||
e44a2c9c AM |
402 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
403 | abort (); | |
404 | ||
6cdc0ccc AM |
405 | if (symcount == 0) |
406 | return intsym_buf; | |
407 | ||
408 | /* Normal syms might have section extension entries. */ | |
409 | shndx_hdr = NULL; | |
6a40cf0c NC |
410 | if (elf_symtab_shndx_list (ibfd) != NULL) |
411 | { | |
412 | elf_section_list * entry; | |
413 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
414 | ||
415 | /* Find an index section that is linked to this symtab section. */ | |
416 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
417 | { |
418 | /* PR 20063. */ | |
419 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
420 | continue; | |
421 | ||
422 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
423 | { | |
424 | shndx_hdr = & entry->hdr; | |
425 | break; | |
426 | }; | |
427 | } | |
6a40cf0c NC |
428 | |
429 | if (shndx_hdr == NULL) | |
430 | { | |
431 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
432 | /* Not really accurate, but this was how the old code used to work. */ | |
433 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
434 | /* Otherwise we do nothing. The assumption is that | |
435 | the index table will not be needed. */ | |
436 | } | |
437 | } | |
6cdc0ccc AM |
438 | |
439 | /* Read the symbols. */ | |
440 | alloc_ext = NULL; | |
441 | alloc_extshndx = NULL; | |
4dd07732 | 442 | alloc_intsym = NULL; |
6cdc0ccc AM |
443 | bed = get_elf_backend_data (ibfd); |
444 | extsym_size = bed->s->sizeof_sym; | |
1f4361a7 AM |
445 | if (_bfd_mul_overflow (symcount, extsym_size, &amt)) |
446 | { | |
447 | bfd_set_error (bfd_error_file_too_big); | |
448 | intsym_buf = NULL; | |
449 | goto out; | |
450 | } | |
6cdc0ccc AM |
451 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
452 | if (extsym_buf == NULL) | |
453 | { | |
1f4361a7 | 454 | alloc_ext = bfd_malloc (amt); |
6cdc0ccc AM |
455 | extsym_buf = alloc_ext; |
456 | } | |
457 | if (extsym_buf == NULL | |
458 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
459 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
460 | { | |
461 | intsym_buf = NULL; | |
462 | goto out; | |
463 | } | |
464 | ||
465 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
466 | extshndx_buf = NULL; | |
467 | else | |
468 | { | |
1f4361a7 AM |
469 | if (_bfd_mul_overflow (symcount, sizeof (Elf_External_Sym_Shndx), &amt)) |
470 | { | |
471 | bfd_set_error (bfd_error_file_too_big); | |
472 | intsym_buf = NULL; | |
473 | goto out; | |
474 | } | |
6cdc0ccc AM |
475 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
476 | if (extshndx_buf == NULL) | |
477 | { | |
1f4361a7 | 478 | alloc_extshndx = (Elf_External_Sym_Shndx *) bfd_malloc (amt); |
6cdc0ccc AM |
479 | extshndx_buf = alloc_extshndx; |
480 | } | |
481 | if (extshndx_buf == NULL | |
482 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
483 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
484 | { | |
485 | intsym_buf = NULL; | |
486 | goto out; | |
487 | } | |
488 | } | |
489 | ||
490 | if (intsym_buf == NULL) | |
491 | { | |
1f4361a7 AM |
492 | if (_bfd_mul_overflow (symcount, sizeof (Elf_Internal_Sym), &amt)) |
493 | { | |
494 | bfd_set_error (bfd_error_file_too_big); | |
495 | goto out; | |
496 | } | |
497 | alloc_intsym = (Elf_Internal_Sym *) bfd_malloc (amt); | |
4dd07732 | 498 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
499 | if (intsym_buf == NULL) |
500 | goto out; | |
501 | } | |
502 | ||
503 | /* Convert the symbols to internal form. */ | |
504 | isymend = intsym_buf + symcount; | |
a50b1753 | 505 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 506 | shndx = extshndx_buf; |
6cdc0ccc AM |
507 | isym < isymend; |
508 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
509 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
510 | { | |
511 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 512 | /* xgettext:c-format */ |
871b3ab2 | 513 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 514 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 515 | ibfd, (unsigned long) symoffset); |
4dd07732 AM |
516 | if (alloc_intsym != NULL) |
517 | free (alloc_intsym); | |
8384fb8f AM |
518 | intsym_buf = NULL; |
519 | goto out; | |
520 | } | |
6cdc0ccc AM |
521 | |
522 | out: | |
523 | if (alloc_ext != NULL) | |
524 | free (alloc_ext); | |
525 | if (alloc_extshndx != NULL) | |
526 | free (alloc_extshndx); | |
527 | ||
528 | return intsym_buf; | |
529 | } | |
530 | ||
5cab59f6 AM |
531 | /* Look up a symbol name. */ |
532 | const char * | |
be8dd2ca AM |
533 | bfd_elf_sym_name (bfd *abfd, |
534 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
535 | Elf_Internal_Sym *isym, |
536 | asection *sym_sec) | |
5cab59f6 | 537 | { |
26c61ae5 | 538 | const char *name; |
5cab59f6 | 539 | unsigned int iname = isym->st_name; |
be8dd2ca | 540 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 541 | |
138f35cc JJ |
542 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
543 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 544 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
545 | { |
546 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
547 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
548 | } | |
549 | ||
26c61ae5 L |
550 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
551 | if (name == NULL) | |
552 | name = "(null)"; | |
553 | else if (sym_sec && *name == '\0') | |
fd361982 | 554 | name = bfd_section_name (sym_sec); |
26c61ae5 L |
555 | |
556 | return name; | |
5cab59f6 AM |
557 | } |
558 | ||
dbb410c3 AM |
559 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
560 | sections. The first element is the flags, the rest are section | |
561 | pointers. */ | |
562 | ||
563 | typedef union elf_internal_group { | |
564 | Elf_Internal_Shdr *shdr; | |
565 | unsigned int flags; | |
566 | } Elf_Internal_Group; | |
567 | ||
b885599b AM |
568 | /* Return the name of the group signature symbol. Why isn't the |
569 | signature just a string? */ | |
570 | ||
571 | static const char * | |
217aa764 | 572 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 573 | { |
9dce4196 | 574 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
575 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
576 | Elf_External_Sym_Shndx eshndx; | |
577 | Elf_Internal_Sym isym; | |
b885599b | 578 | |
13792e9d L |
579 | /* First we need to ensure the symbol table is available. Make sure |
580 | that it is a symbol table section. */ | |
4fbb74a6 AM |
581 | if (ghdr->sh_link >= elf_numsections (abfd)) |
582 | return NULL; | |
13792e9d L |
583 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
584 | if (hdr->sh_type != SHT_SYMTAB | |
585 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
586 | return NULL; |
587 | ||
9dce4196 AM |
588 | /* Go read the symbol. */ |
589 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
590 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
591 | &isym, esym, &eshndx) == NULL) | |
b885599b | 592 | return NULL; |
9dce4196 | 593 | |
26c61ae5 | 594 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
595 | } |
596 | ||
dbb410c3 AM |
597 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
598 | ||
b34976b6 | 599 | static bfd_boolean |
217aa764 | 600 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
601 | { |
602 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
603 | ||
604 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
605 | is set to -1 if there are no SHT_GROUP sections. */ | |
606 | if (num_group == 0) | |
607 | { | |
608 | unsigned int i, shnum; | |
609 | ||
610 | /* First count the number of groups. If we have a SHT_GROUP | |
611 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 612 | shnum = elf_numsections (abfd); |
dbb410c3 | 613 | num_group = 0; |
08a40648 | 614 | |
44534af3 | 615 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 616 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 617 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
618 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
619 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 620 | |
dbb410c3 AM |
621 | for (i = 0; i < shnum; i++) |
622 | { | |
623 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 624 | |
44534af3 | 625 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
626 | num_group += 1; |
627 | } | |
628 | ||
629 | if (num_group == 0) | |
20dbb49d L |
630 | { |
631 | num_group = (unsigned) -1; | |
632 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 633 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
634 | } |
635 | else | |
dbb410c3 AM |
636 | { |
637 | /* We keep a list of elf section headers for group sections, | |
638 | so we can find them quickly. */ | |
1f4361a7 | 639 | size_t amt; |
d0fb9a8d | 640 | |
20dbb49d | 641 | elf_tdata (abfd)->num_group = num_group; |
1f4361a7 AM |
642 | amt = num_group * sizeof (Elf_Internal_Shdr *); |
643 | elf_tdata (abfd)->group_sect_ptr | |
644 | = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
dbb410c3 | 645 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 646 | return FALSE; |
dbb410c3 | 647 | num_group = 0; |
ce497010 | 648 | |
dbb410c3 AM |
649 | for (i = 0; i < shnum; i++) |
650 | { | |
651 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 652 | |
44534af3 | 653 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 654 | { |
973ffd63 | 655 | unsigned char *src; |
dbb410c3 AM |
656 | Elf_Internal_Group *dest; |
657 | ||
07d6d2b8 AM |
658 | /* Make sure the group section has a BFD section |
659 | attached to it. */ | |
660 | if (!bfd_section_from_shdr (abfd, i)) | |
661 | return FALSE; | |
662 | ||
dbb410c3 AM |
663 | /* Add to list of sections. */ |
664 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
665 | num_group += 1; | |
666 | ||
667 | /* Read the raw contents. */ | |
1f4361a7 AM |
668 | BFD_ASSERT (sizeof (*dest) >= 4 && sizeof (*dest) % 4 == 0); |
669 | shdr->contents = NULL; | |
670 | if (_bfd_mul_overflow (shdr->sh_size, | |
671 | sizeof (*dest) / 4, &amt) | |
1f4361a7 | 672 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 |
2bb3687b AM |
673 | || !(shdr->contents |
674 | = _bfd_alloc_and_read (abfd, amt, shdr->sh_size))) | |
493a3386 NC |
675 | { |
676 | _bfd_error_handler | |
695344c0 | 677 | /* xgettext:c-format */ |
871b3ab2 | 678 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
679 | " header: %#" PRIx64 ""), |
680 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
681 | bfd_set_error (bfd_error_bad_value); |
682 | -- num_group; | |
493a3386 NC |
683 | continue; |
684 | } | |
708d7d0d | 685 | |
dbb410c3 AM |
686 | /* Translate raw contents, a flag word followed by an |
687 | array of elf section indices all in target byte order, | |
688 | to the flag word followed by an array of elf section | |
689 | pointers. */ | |
690 | src = shdr->contents + shdr->sh_size; | |
691 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 692 | |
dbb410c3 AM |
693 | while (1) |
694 | { | |
695 | unsigned int idx; | |
696 | ||
697 | src -= 4; | |
698 | --dest; | |
699 | idx = H_GET_32 (abfd, src); | |
700 | if (src == shdr->contents) | |
701 | { | |
327301a4 | 702 | dest->shdr = NULL; |
dbb410c3 | 703 | dest->flags = idx; |
b885599b AM |
704 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
705 | shdr->bfd_section->flags | |
706 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
707 | break; |
708 | } | |
4bba0fb1 | 709 | if (idx < shnum) |
bae363f1 L |
710 | { |
711 | dest->shdr = elf_elfsections (abfd)[idx]; | |
712 | /* PR binutils/23199: All sections in a | |
713 | section group should be marked with | |
714 | SHF_GROUP. But some tools generate | |
715 | broken objects without SHF_GROUP. Fix | |
716 | them up here. */ | |
717 | dest->shdr->sh_flags |= SHF_GROUP; | |
718 | } | |
4bba0fb1 AM |
719 | if (idx >= shnum |
720 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 721 | { |
4eca0228 | 722 | _bfd_error_handler |
4bba0fb1 AM |
723 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
724 | abfd, i); | |
725 | dest->shdr = NULL; | |
dbb410c3 | 726 | } |
dbb410c3 AM |
727 | } |
728 | } | |
729 | } | |
493a3386 NC |
730 | |
731 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
732 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
733 | { | |
734 | elf_tdata (abfd)->num_group = num_group; | |
735 | ||
736 | /* If all groups are invalid then fail. */ | |
737 | if (num_group == 0) | |
738 | { | |
739 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
740 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 741 | _bfd_error_handler |
871b3ab2 | 742 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
743 | bfd_set_error (bfd_error_bad_value); |
744 | } | |
745 | } | |
dbb410c3 AM |
746 | } |
747 | } | |
748 | ||
749 | if (num_group != (unsigned) -1) | |
750 | { | |
564e11c9 JW |
751 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
752 | unsigned int j; | |
dbb410c3 | 753 | |
564e11c9 | 754 | for (j = 0; j < num_group; j++) |
dbb410c3 | 755 | { |
564e11c9 JW |
756 | /* Begin search from previous found group. */ |
757 | unsigned i = (j + search_offset) % num_group; | |
758 | ||
dbb410c3 | 759 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 760 | Elf_Internal_Group *idx; |
0c54f692 | 761 | bfd_size_type n_elt; |
ce497010 NC |
762 | |
763 | if (shdr == NULL) | |
764 | continue; | |
765 | ||
766 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
767 | if (idx == NULL || shdr->sh_size < 4) |
768 | { | |
769 | /* See PR 21957 for a reproducer. */ | |
770 | /* xgettext:c-format */ | |
871b3ab2 | 771 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
772 | abfd, shdr->bfd_section); |
773 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
774 | bfd_set_error (bfd_error_bad_value); | |
775 | return FALSE; | |
776 | } | |
ce497010 | 777 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
778 | |
779 | /* Look through this group's sections to see if current | |
780 | section is a member. */ | |
781 | while (--n_elt != 0) | |
782 | if ((++idx)->shdr == hdr) | |
783 | { | |
e0e8c97f | 784 | asection *s = NULL; |
dbb410c3 AM |
785 | |
786 | /* We are a member of this group. Go looking through | |
787 | other members to see if any others are linked via | |
788 | next_in_group. */ | |
789 | idx = (Elf_Internal_Group *) shdr->contents; | |
790 | n_elt = shdr->sh_size / 4; | |
791 | while (--n_elt != 0) | |
4bba0fb1 AM |
792 | if ((++idx)->shdr != NULL |
793 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 794 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
795 | break; |
796 | if (n_elt != 0) | |
797 | { | |
dbb410c3 AM |
798 | /* Snarf the group name from other member, and |
799 | insert current section in circular list. */ | |
945906ff AM |
800 | elf_group_name (newsect) = elf_group_name (s); |
801 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
802 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
803 | } |
804 | else | |
805 | { | |
dbb410c3 AM |
806 | const char *gname; |
807 | ||
b885599b AM |
808 | gname = group_signature (abfd, shdr); |
809 | if (gname == NULL) | |
b34976b6 | 810 | return FALSE; |
945906ff | 811 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
812 | |
813 | /* Start a circular list with one element. */ | |
945906ff | 814 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 815 | } |
b885599b | 816 | |
9dce4196 AM |
817 | /* If the group section has been created, point to the |
818 | new member. */ | |
dbb410c3 | 819 | if (shdr->bfd_section != NULL) |
945906ff | 820 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 821 | |
564e11c9 JW |
822 | elf_tdata (abfd)->group_search_offset = i; |
823 | j = num_group - 1; | |
dbb410c3 AM |
824 | break; |
825 | } | |
826 | } | |
827 | } | |
828 | ||
945906ff | 829 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 830 | { |
695344c0 | 831 | /* xgettext:c-format */ |
871b3ab2 | 832 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 833 | abfd, newsect); |
493a3386 | 834 | return FALSE; |
dbb410c3 | 835 | } |
b34976b6 | 836 | return TRUE; |
dbb410c3 AM |
837 | } |
838 | ||
3d7f7666 | 839 | bfd_boolean |
dd863624 | 840 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
841 | { |
842 | unsigned int i; | |
843 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
844 | bfd_boolean result = TRUE; | |
dd863624 L |
845 | asection *s; |
846 | ||
847 | /* Process SHF_LINK_ORDER. */ | |
848 | for (s = abfd->sections; s != NULL; s = s->next) | |
849 | { | |
850 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
851 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
852 | { | |
853 | unsigned int elfsec = this_hdr->sh_link; | |
854 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
855 | not set the sh_link or sh_info fields. Hence we could | |
856 | get the situation where elfsec is 0. */ | |
857 | if (elfsec == 0) | |
858 | { | |
4fbb74a6 | 859 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
a859124d AM |
860 | bed->link_order_error_handler |
861 | /* xgettext:c-format */ | |
862 | (_("%pB: warning: sh_link not set for section `%pA'"), | |
863 | abfd, s); | |
dd863624 L |
864 | } |
865 | else | |
866 | { | |
91d6fa6a | 867 | asection *linksec = NULL; |
25bbc984 | 868 | |
4fbb74a6 AM |
869 | if (elfsec < elf_numsections (abfd)) |
870 | { | |
871 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 872 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 873 | } |
25bbc984 L |
874 | |
875 | /* PR 1991, 2008: | |
876 | Some strip/objcopy may leave an incorrect value in | |
877 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 878 | if (linksec == NULL) |
25bbc984 | 879 | { |
4eca0228 | 880 | _bfd_error_handler |
695344c0 | 881 | /* xgettext:c-format */ |
871b3ab2 | 882 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 883 | s->owner, elfsec, s); |
25bbc984 L |
884 | result = FALSE; |
885 | } | |
886 | ||
91d6fa6a | 887 | elf_linked_to_section (s) = linksec; |
dd863624 L |
888 | } |
889 | } | |
53720c49 AM |
890 | else if (this_hdr->sh_type == SHT_GROUP |
891 | && elf_next_in_group (s) == NULL) | |
892 | { | |
4eca0228 | 893 | _bfd_error_handler |
695344c0 | 894 | /* xgettext:c-format */ |
871b3ab2 | 895 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
896 | abfd, elf_section_data (s)->this_idx); |
897 | result = FALSE; | |
898 | } | |
dd863624 | 899 | } |
3d7f7666 | 900 | |
dd863624 | 901 | /* Process section groups. */ |
3d7f7666 L |
902 | if (num_group == (unsigned) -1) |
903 | return result; | |
904 | ||
905 | for (i = 0; i < num_group; i++) | |
906 | { | |
907 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
908 | Elf_Internal_Group *idx; |
909 | unsigned int n_elt; | |
3d7f7666 | 910 | |
4b0e8a5f NC |
911 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
912 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
913 | { | |
4eca0228 | 914 | _bfd_error_handler |
695344c0 | 915 | /* xgettext:c-format */ |
871b3ab2 | 916 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
917 | abfd, i); |
918 | result = FALSE; | |
919 | continue; | |
920 | } | |
921 | ||
922 | idx = (Elf_Internal_Group *) shdr->contents; | |
923 | n_elt = shdr->sh_size / 4; | |
1b786873 | 924 | |
3d7f7666 | 925 | while (--n_elt != 0) |
24d3e51b NC |
926 | { |
927 | ++ idx; | |
928 | ||
929 | if (idx->shdr == NULL) | |
930 | continue; | |
931 | else if (idx->shdr->bfd_section) | |
932 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
933 | else if (idx->shdr->sh_type != SHT_RELA |
934 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
935 | { |
936 | /* There are some unknown sections in the group. */ | |
937 | _bfd_error_handler | |
938 | /* xgettext:c-format */ | |
871b3ab2 | 939 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
940 | abfd, |
941 | idx->shdr->sh_type, | |
942 | bfd_elf_string_from_elf_section (abfd, | |
943 | (elf_elfheader (abfd) | |
944 | ->e_shstrndx), | |
945 | idx->shdr->sh_name), | |
946 | shdr->bfd_section); | |
947 | result = FALSE; | |
948 | } | |
949 | } | |
3d7f7666 | 950 | } |
24d3e51b | 951 | |
3d7f7666 L |
952 | return result; |
953 | } | |
954 | ||
72adc230 AM |
955 | bfd_boolean |
956 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
957 | { | |
958 | return elf_next_in_group (sec) != NULL; | |
959 | } | |
960 | ||
cb7f4b29 AM |
961 | const char * |
962 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
963 | { | |
964 | if (elf_sec_group (sec) != NULL) | |
965 | return elf_group_name (sec); | |
966 | return NULL; | |
967 | } | |
968 | ||
f6fe1ccd L |
969 | static char * |
970 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
971 | { | |
972 | unsigned int len = strlen (name); | |
973 | char *new_name = bfd_alloc (abfd, len + 2); | |
974 | if (new_name == NULL) | |
975 | return NULL; | |
976 | new_name[0] = '.'; | |
977 | new_name[1] = 'z'; | |
978 | memcpy (new_name + 2, name + 1, len); | |
979 | return new_name; | |
980 | } | |
981 | ||
982 | static char * | |
983 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
984 | { | |
985 | unsigned int len = strlen (name); | |
986 | char *new_name = bfd_alloc (abfd, len); | |
987 | if (new_name == NULL) | |
988 | return NULL; | |
989 | new_name[0] = '.'; | |
990 | memcpy (new_name + 1, name + 2, len - 1); | |
991 | return new_name; | |
992 | } | |
993 | ||
cc5277b1 ML |
994 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
995 | ||
996 | struct lto_section | |
997 | { | |
998 | int16_t major_version; | |
999 | int16_t minor_version; | |
1000 | unsigned char slim_object; | |
1001 | ||
1002 | /* Flags is a private field that is not defined publicly. */ | |
1003 | uint16_t flags; | |
1004 | }; | |
1005 | ||
252b5132 RH |
1006 | /* Make a BFD section from an ELF section. We store a pointer to the |
1007 | BFD section in the bfd_section field of the header. */ | |
1008 | ||
b34976b6 | 1009 | bfd_boolean |
217aa764 AM |
1010 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1011 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1012 | const char *name, |
1013 | int shindex) | |
252b5132 RH |
1014 | { |
1015 | asection *newsect; | |
1016 | flagword flags; | |
9c5bfbb7 | 1017 | const struct elf_backend_data *bed; |
502794d4 | 1018 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
1019 | |
1020 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1021 | return TRUE; |
252b5132 RH |
1022 | |
1023 | newsect = bfd_make_section_anyway (abfd, name); | |
1024 | if (newsect == NULL) | |
b34976b6 | 1025 | return FALSE; |
252b5132 | 1026 | |
1829f4b2 AM |
1027 | hdr->bfd_section = newsect; |
1028 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1029 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1030 | |
2f89ff8d L |
1031 | /* Always use the real type/flags. */ |
1032 | elf_section_type (newsect) = hdr->sh_type; | |
1033 | elf_section_flags (newsect) = hdr->sh_flags; | |
1034 | ||
252b5132 RH |
1035 | newsect->filepos = hdr->sh_offset; |
1036 | ||
252b5132 RH |
1037 | flags = SEC_NO_FLAGS; |
1038 | if (hdr->sh_type != SHT_NOBITS) | |
1039 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1040 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1041 | flags |= SEC_GROUP; |
252b5132 RH |
1042 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1043 | { | |
1044 | flags |= SEC_ALLOC; | |
1045 | if (hdr->sh_type != SHT_NOBITS) | |
1046 | flags |= SEC_LOAD; | |
1047 | } | |
1048 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1049 | flags |= SEC_READONLY; | |
1050 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1051 | flags |= SEC_CODE; | |
1052 | else if ((flags & SEC_LOAD) != 0) | |
1053 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1054 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1055 | { | |
1056 | flags |= SEC_MERGE; | |
1057 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1058 | } |
84865015 NC |
1059 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1060 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1061 | if (hdr->sh_flags & SHF_GROUP) |
1062 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1063 | return FALSE; |
13ae64f3 JJ |
1064 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1065 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1066 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1067 | flags |= SEC_EXCLUDE; | |
252b5132 | 1068 | |
df3a023b AM |
1069 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1070 | { | |
1071 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1072 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1073 | byte. */ | |
1074 | case ELFOSABI_NONE: | |
1075 | case ELFOSABI_GNU: | |
1076 | case ELFOSABI_FREEBSD: | |
1077 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) | |
1078 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1079 | break; | |
1080 | } | |
1081 | ||
3d2b39cf | 1082 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1083 | { |
3d2b39cf L |
1084 | /* The debugging sections appear to be recognized only by name, |
1085 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1086 | if (name [0] == '.') |
1087 | { | |
bb294208 AM |
1088 | if (strncmp (name, ".debug", 6) == 0 |
1089 | || strncmp (name, ".gnu.linkonce.wi.", 17) == 0 | |
1090 | || strncmp (name, ".zdebug", 7) == 0) | |
1091 | flags |= SEC_DEBUGGING | SEC_ELF_OCTETS; | |
1092 | else if (strncmp (name, GNU_BUILD_ATTRS_SECTION_NAME, 21) == 0 | |
1093 | || strncmp (name, ".note.gnu", 9) == 0) | |
502794d4 CE |
1094 | { |
1095 | flags |= SEC_ELF_OCTETS; | |
1096 | opb = 1; | |
1097 | } | |
bb294208 AM |
1098 | else if (strncmp (name, ".line", 5) == 0 |
1099 | || strncmp (name, ".stab", 5) == 0 | |
1100 | || strcmp (name, ".gdb_index") == 0) | |
3d2b39cf L |
1101 | flags |= SEC_DEBUGGING; |
1102 | } | |
1103 | } | |
252b5132 | 1104 | |
502794d4 CE |
1105 | if (!bfd_set_section_vma (newsect, hdr->sh_addr / opb) |
1106 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1107 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign))) | |
1108 | return FALSE; | |
1109 | ||
252b5132 RH |
1110 | /* As a GNU extension, if the name begins with .gnu.linkonce, we |
1111 | only link a single copy of the section. This is used to support | |
1112 | g++. g++ will emit each template expansion in its own section. | |
1113 | The symbols will be defined as weak, so that multiple definitions | |
1114 | are permitted. The GNU linker extension is to actually discard | |
1115 | all but one of the sections. */ | |
0112cd26 | 1116 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1117 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1118 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1119 | ||
8c803a2d AM |
1120 | if (!bfd_set_section_flags (newsect, flags)) |
1121 | return FALSE; | |
1122 | ||
fa152c49 JW |
1123 | bed = get_elf_backend_data (abfd); |
1124 | if (bed->elf_backend_section_flags) | |
8c803a2d | 1125 | if (!bed->elf_backend_section_flags (hdr)) |
b34976b6 | 1126 | return FALSE; |
fa152c49 | 1127 | |
718175fa JK |
1128 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1129 | separate debug info files which may have the segments offsets corrupted. | |
1130 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1131 | if (hdr->sh_type == SHT_NOTE) | |
1132 | { | |
baea7ef1 | 1133 | bfd_byte *contents; |
718175fa | 1134 | |
baea7ef1 | 1135 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1136 | return FALSE; |
1137 | ||
276da9b3 L |
1138 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1139 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1140 | free (contents); |
1141 | } | |
1142 | ||
8c803a2d | 1143 | if ((newsect->flags & SEC_ALLOC) != 0) |
252b5132 RH |
1144 | { |
1145 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1146 | unsigned int i, nload; |
1147 | ||
1148 | /* Some ELF linkers produce binaries with all the program header | |
1149 | p_paddr fields zero. If we have such a binary with more than | |
1150 | one PT_LOAD header, then leave the section lma equal to vma | |
1151 | so that we don't create sections with overlapping lma. */ | |
1152 | phdr = elf_tdata (abfd)->phdr; | |
1153 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1154 | if (phdr->p_paddr != 0) | |
1155 | break; | |
1156 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1157 | ++nload; | |
1158 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1159 | return TRUE; | |
252b5132 | 1160 | |
252b5132 RH |
1161 | phdr = elf_tdata (abfd)->phdr; |
1162 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1163 | { | |
86b2281f AM |
1164 | if (((phdr->p_type == PT_LOAD |
1165 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1166 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1167 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1168 | { |
8c803a2d | 1169 | if ((newsect->flags & SEC_LOAD) == 0) |
88967714 | 1170 | newsect->lma = (phdr->p_paddr |
502794d4 | 1171 | + hdr->sh_addr - phdr->p_vaddr) / opb; |
88967714 AM |
1172 | else |
1173 | /* We used to use the same adjustment for SEC_LOAD | |
1174 | sections, but that doesn't work if the segment | |
1175 | is packed with code from multiple VMAs. | |
1176 | Instead we calculate the section LMA based on | |
1177 | the segment LMA. It is assumed that the | |
1178 | segment will contain sections with contiguous | |
1179 | LMAs, even if the VMAs are not. */ | |
1180 | newsect->lma = (phdr->p_paddr | |
502794d4 | 1181 | + hdr->sh_offset - phdr->p_offset) / opb; |
88967714 AM |
1182 | |
1183 | /* With contiguous segments, we can't tell from file | |
1184 | offsets whether a section with zero size should | |
1185 | be placed at the end of one segment or the | |
1186 | beginning of the next. Decide based on vaddr. */ | |
1187 | if (hdr->sh_addr >= phdr->p_vaddr | |
1188 | && (hdr->sh_addr + hdr->sh_size | |
1189 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1190 | break; | |
252b5132 RH |
1191 | } |
1192 | } | |
1193 | } | |
1194 | ||
4a114e3e L |
1195 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1196 | .zdebug_*, after the section flags is set. */ | |
8c803a2d | 1197 | if ((newsect->flags & SEC_DEBUGGING) |
4a114e3e L |
1198 | && ((name[1] == 'd' && name[6] == '_') |
1199 | || (name[1] == 'z' && name[7] == '_'))) | |
1200 | { | |
1201 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1202 | int compression_header_size; |
dab394de | 1203 | bfd_size_type uncompressed_size; |
4207142d | 1204 | unsigned int uncompressed_align_power; |
151411f8 L |
1205 | bfd_boolean compressed |
1206 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1207 | &compression_header_size, |
4207142d MW |
1208 | &uncompressed_size, |
1209 | &uncompressed_align_power); | |
151411f8 | 1210 | if (compressed) |
4a114e3e L |
1211 | { |
1212 | /* Compressed section. Check if we should decompress. */ | |
1213 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1214 | action = decompress; | |
1215 | } | |
151411f8 L |
1216 | |
1217 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1218 | section. Check if we should compress. */ | |
1219 | if (action == nothing) | |
4a114e3e | 1220 | { |
151411f8 L |
1221 | if (newsect->size != 0 |
1222 | && (abfd->flags & BFD_COMPRESS) | |
1223 | && compression_header_size >= 0 | |
dab394de | 1224 | && uncompressed_size > 0 |
151411f8 L |
1225 | && (!compressed |
1226 | || ((compression_header_size > 0) | |
1227 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1228 | action = compress; |
151411f8 L |
1229 | else |
1230 | return TRUE; | |
4a114e3e L |
1231 | } |
1232 | ||
151411f8 | 1233 | if (action == compress) |
4a114e3e | 1234 | { |
4a114e3e L |
1235 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1236 | { | |
4eca0228 | 1237 | _bfd_error_handler |
695344c0 | 1238 | /* xgettext:c-format */ |
871b3ab2 | 1239 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1240 | abfd, name); |
1241 | return FALSE; | |
1242 | } | |
151411f8 L |
1243 | } |
1244 | else | |
1245 | { | |
4a114e3e L |
1246 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1247 | { | |
4eca0228 | 1248 | _bfd_error_handler |
695344c0 | 1249 | /* xgettext:c-format */ |
871b3ab2 | 1250 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1251 | abfd, name); |
1252 | return FALSE; | |
1253 | } | |
151411f8 L |
1254 | } |
1255 | ||
f6fe1ccd | 1256 | if (abfd->is_linker_input) |
151411f8 | 1257 | { |
f6fe1ccd L |
1258 | if (name[1] == 'z' |
1259 | && (action == decompress | |
1260 | || (action == compress | |
1261 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1262 | { |
f6fe1ccd L |
1263 | /* Convert section name from .zdebug_* to .debug_* so |
1264 | that linker will consider this section as a debug | |
1265 | section. */ | |
1266 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1267 | if (new_name == NULL) |
1268 | return FALSE; | |
fd361982 | 1269 | bfd_rename_section (newsect, new_name); |
151411f8 | 1270 | } |
4a114e3e | 1271 | } |
f6fe1ccd L |
1272 | else |
1273 | /* For objdump, don't rename the section. For objcopy, delay | |
1274 | section rename to elf_fake_sections. */ | |
1275 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1276 | } |
1277 | ||
cc5277b1 ML |
1278 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1279 | section. */ | |
1280 | const char *lto_section_name = ".gnu.lto_.lto."; | |
1281 | if (strncmp (name, lto_section_name, strlen (lto_section_name)) == 0) | |
1282 | { | |
1283 | struct lto_section lsection; | |
1284 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1285 | sizeof (struct lto_section))) | |
1286 | abfd->lto_slim_object = lsection.slim_object; | |
1287 | } | |
1288 | ||
b34976b6 | 1289 | return TRUE; |
252b5132 RH |
1290 | } |
1291 | ||
84865015 NC |
1292 | const char *const bfd_elf_section_type_names[] = |
1293 | { | |
252b5132 RH |
1294 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1295 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1296 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1297 | }; | |
1298 | ||
1049f94e | 1299 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1300 | output, and the reloc is against an external symbol, and nothing |
1301 | has given us any additional addend, the resulting reloc will also | |
1302 | be against the same symbol. In such a case, we don't want to | |
1303 | change anything about the way the reloc is handled, since it will | |
1304 | all be done at final link time. Rather than put special case code | |
1305 | into bfd_perform_relocation, all the reloc types use this howto | |
1306 | function. It just short circuits the reloc if producing | |
1049f94e | 1307 | relocatable output against an external symbol. */ |
252b5132 | 1308 | |
252b5132 | 1309 | bfd_reloc_status_type |
217aa764 AM |
1310 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1311 | arelent *reloc_entry, | |
1312 | asymbol *symbol, | |
1313 | void *data ATTRIBUTE_UNUSED, | |
1314 | asection *input_section, | |
1315 | bfd *output_bfd, | |
1316 | char **error_message ATTRIBUTE_UNUSED) | |
1317 | { | |
1318 | if (output_bfd != NULL | |
252b5132 RH |
1319 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1320 | && (! reloc_entry->howto->partial_inplace | |
1321 | || reloc_entry->addend == 0)) | |
1322 | { | |
1323 | reloc_entry->address += input_section->output_offset; | |
1324 | return bfd_reloc_ok; | |
1325 | } | |
1326 | ||
1327 | return bfd_reloc_continue; | |
1328 | } | |
1329 | \f | |
84865015 NC |
1330 | /* Returns TRUE if section A matches section B. |
1331 | Names, addresses and links may be different, but everything else | |
1332 | should be the same. */ | |
1333 | ||
1334 | static bfd_boolean | |
5522f910 NC |
1335 | section_match (const Elf_Internal_Shdr * a, |
1336 | const Elf_Internal_Shdr * b) | |
84865015 | 1337 | { |
ac85e67c AM |
1338 | if (a->sh_type != b->sh_type |
1339 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1340 | || a->sh_addralign != b->sh_addralign | |
1341 | || a->sh_entsize != b->sh_entsize) | |
1342 | return FALSE; | |
1343 | if (a->sh_type == SHT_SYMTAB | |
1344 | || a->sh_type == SHT_STRTAB) | |
1345 | return TRUE; | |
1346 | return a->sh_size == b->sh_size; | |
84865015 NC |
1347 | } |
1348 | ||
1349 | /* Find a section in OBFD that has the same characteristics | |
1350 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1351 | none can be found. Check's section HINT first, as this is likely | |
1352 | to be the correct section. */ | |
1353 | ||
1354 | static unsigned int | |
5cc4ca83 ST |
1355 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1356 | const unsigned int hint) | |
84865015 NC |
1357 | { |
1358 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1359 | unsigned int i; | |
1360 | ||
a55c9876 NC |
1361 | BFD_ASSERT (iheader != NULL); |
1362 | ||
1363 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1364 | if (hint < elf_numsections (obfd) |
1365 | && oheaders[hint] != NULL | |
a55c9876 | 1366 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1367 | return hint; |
1368 | ||
1369 | for (i = 1; i < elf_numsections (obfd); i++) | |
1370 | { | |
1371 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1372 | ||
a55c9876 NC |
1373 | if (oheader == NULL) |
1374 | continue; | |
84865015 NC |
1375 | if (section_match (oheader, iheader)) |
1376 | /* FIXME: Do we care if there is a potential for | |
1377 | multiple matches ? */ | |
1378 | return i; | |
1379 | } | |
1380 | ||
1381 | return SHN_UNDEF; | |
1382 | } | |
1383 | ||
5522f910 NC |
1384 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1385 | Processor specific section, based upon a matching input section. | |
1386 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1387 | |
5522f910 NC |
1388 | static bfd_boolean |
1389 | copy_special_section_fields (const bfd *ibfd, | |
1390 | bfd *obfd, | |
1391 | const Elf_Internal_Shdr *iheader, | |
1392 | Elf_Internal_Shdr *oheader, | |
1393 | const unsigned int secnum) | |
1394 | { | |
1395 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1396 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1397 | bfd_boolean changed = FALSE; | |
1398 | unsigned int sh_link; | |
1399 | ||
1400 | if (oheader->sh_type == SHT_NOBITS) | |
1401 | { | |
1402 | /* This is a feature for objcopy --only-keep-debug: | |
1403 | When a section's type is changed to NOBITS, we preserve | |
1404 | the sh_link and sh_info fields so that they can be | |
1405 | matched up with the original. | |
1406 | ||
1407 | Note: Strictly speaking these assignments are wrong. | |
1408 | The sh_link and sh_info fields should point to the | |
1409 | relevent sections in the output BFD, which may not be in | |
1410 | the same location as they were in the input BFD. But | |
1411 | the whole point of this action is to preserve the | |
1412 | original values of the sh_link and sh_info fields, so | |
1413 | that they can be matched up with the section headers in | |
1414 | the original file. So strictly speaking we may be | |
1415 | creating an invalid ELF file, but it is only for a file | |
1416 | that just contains debug info and only for sections | |
1417 | without any contents. */ | |
1418 | if (oheader->sh_link == 0) | |
1419 | oheader->sh_link = iheader->sh_link; | |
1420 | if (oheader->sh_info == 0) | |
1421 | oheader->sh_info = iheader->sh_info; | |
1422 | return TRUE; | |
1423 | } | |
1424 | ||
1425 | /* Allow the target a chance to decide how these fields should be set. */ | |
a859124d AM |
1426 | if (bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1427 | iheader, oheader)) | |
5522f910 NC |
1428 | return TRUE; |
1429 | ||
1430 | /* We have an iheader which might match oheader, and which has non-zero | |
1431 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1432 | the section in the output bfd which corresponds to the linked section | |
1433 | in the input bfd. */ | |
1434 | if (iheader->sh_link != SHN_UNDEF) | |
1435 | { | |
4f3ca05b NC |
1436 | /* See PR 20931 for a reproducer. */ |
1437 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1438 | { | |
76cfced5 | 1439 | _bfd_error_handler |
4f3ca05b | 1440 | /* xgettext:c-format */ |
9793eb77 | 1441 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1442 | ibfd, iheader->sh_link, secnum); |
1443 | return FALSE; | |
1444 | } | |
1445 | ||
5522f910 NC |
1446 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1447 | if (sh_link != SHN_UNDEF) | |
1448 | { | |
1449 | oheader->sh_link = sh_link; | |
1450 | changed = TRUE; | |
1451 | } | |
1452 | else | |
1453 | /* FIXME: Should we install iheader->sh_link | |
1454 | if we could not find a match ? */ | |
76cfced5 | 1455 | _bfd_error_handler |
695344c0 | 1456 | /* xgettext:c-format */ |
9793eb77 | 1457 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1458 | } |
1459 | ||
1460 | if (iheader->sh_info) | |
1461 | { | |
1462 | /* The sh_info field can hold arbitrary information, but if the | |
1463 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1464 | section index. */ | |
1465 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1466 | { | |
1467 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1468 | iheader->sh_info); | |
1469 | if (sh_link != SHN_UNDEF) | |
1470 | oheader->sh_flags |= SHF_INFO_LINK; | |
1471 | } | |
1472 | else | |
1473 | /* No idea what it means - just copy it. */ | |
1474 | sh_link = iheader->sh_info; | |
1475 | ||
1476 | if (sh_link != SHN_UNDEF) | |
1477 | { | |
1478 | oheader->sh_info = sh_link; | |
1479 | changed = TRUE; | |
1480 | } | |
1481 | else | |
76cfced5 | 1482 | _bfd_error_handler |
695344c0 | 1483 | /* xgettext:c-format */ |
9793eb77 | 1484 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1485 | } |
1486 | ||
1487 | return changed; | |
1488 | } | |
07d6d2b8 | 1489 | |
0ac4564e L |
1490 | /* Copy the program header and other data from one object module to |
1491 | another. */ | |
252b5132 | 1492 | |
b34976b6 | 1493 | bfd_boolean |
217aa764 | 1494 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1495 | { |
5522f910 NC |
1496 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1497 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1498 | const struct elf_backend_data *bed; | |
84865015 NC |
1499 | unsigned int i; |
1500 | ||
2d502050 | 1501 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1502 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1503 | return TRUE; |
2d502050 | 1504 | |
57b828ef L |
1505 | if (!elf_flags_init (obfd)) |
1506 | { | |
1507 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1508 | elf_flags_init (obfd) = TRUE; | |
1509 | } | |
2d502050 | 1510 | |
0ac4564e | 1511 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1512 | |
1513 | /* Also copy the EI_OSABI field. */ | |
1514 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1515 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1516 | |
5522f910 NC |
1517 | /* If set, copy the EI_ABIVERSION field. */ |
1518 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1519 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1520 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1521 | |
104d59d1 JM |
1522 | /* Copy object attributes. */ |
1523 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1524 | |
84865015 NC |
1525 | if (iheaders == NULL || oheaders == NULL) |
1526 | return TRUE; | |
63b9bbb7 | 1527 | |
5522f910 NC |
1528 | bed = get_elf_backend_data (obfd); |
1529 | ||
1530 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1531 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1532 | { |
84865015 NC |
1533 | unsigned int j; |
1534 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1535 | |
5522f910 NC |
1536 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1537 | because of a special case need for generating separate debug info | |
1538 | files. See below for more details. */ | |
84865015 NC |
1539 | if (oheader == NULL |
1540 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1541 | && oheader->sh_type < SHT_LOOS)) |
1542 | continue; | |
1543 | ||
1544 | /* Ignore empty sections, and sections whose | |
1545 | fields have already been initialised. */ | |
1546 | if (oheader->sh_size == 0 | |
84865015 NC |
1547 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1548 | continue; | |
63b9bbb7 | 1549 | |
84865015 | 1550 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1551 | First we try for a direct mapping between the input and output sections. */ |
1552 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1553 | { | |
1554 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1555 | ||
1556 | if (iheader == NULL) | |
1557 | continue; | |
1558 | ||
1559 | if (oheader->bfd_section != NULL | |
1560 | && iheader->bfd_section != NULL | |
1561 | && iheader->bfd_section->output_section != NULL | |
1562 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1563 | { | |
1564 | /* We have found a connection from the input section to the | |
1565 | output section. Attempt to copy the header fields. If | |
1566 | this fails then do not try any further sections - there | |
1567 | should only be a one-to-one mapping between input and output. */ | |
1568 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1569 | j = elf_numsections (ibfd); | |
1570 | break; | |
1571 | } | |
1572 | } | |
1573 | ||
1574 | if (j < elf_numsections (ibfd)) | |
1575 | continue; | |
1576 | ||
1577 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1578 | Unfortunately we cannot compare names as the output string table |
1579 | is empty, so instead we check size, address and type. */ | |
1580 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1581 | { | |
5522f910 | 1582 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1583 | |
5522f910 NC |
1584 | if (iheader == NULL) |
1585 | continue; | |
1586 | ||
1587 | /* Try matching fields in the input section's header. | |
1588 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1589 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1590 | input type. */ | |
1591 | if ((oheader->sh_type == SHT_NOBITS | |
1592 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1593 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1594 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1595 | && iheader->sh_addralign == oheader->sh_addralign |
1596 | && iheader->sh_entsize == oheader->sh_entsize | |
1597 | && iheader->sh_size == oheader->sh_size | |
1598 | && iheader->sh_addr == oheader->sh_addr | |
1599 | && (iheader->sh_info != oheader->sh_info | |
1600 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1601 | { |
5522f910 NC |
1602 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1603 | break; | |
63b9bbb7 NC |
1604 | } |
1605 | } | |
5522f910 NC |
1606 | |
1607 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1608 | { | |
1609 | /* Final attempt. Call the backend copy function | |
1610 | with a NULL input section. */ | |
a859124d AM |
1611 | (void) bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1612 | NULL, oheader); | |
5522f910 | 1613 | } |
63b9bbb7 NC |
1614 | } |
1615 | ||
b34976b6 | 1616 | return TRUE; |
2d502050 L |
1617 | } |
1618 | ||
cedc298e L |
1619 | static const char * |
1620 | get_segment_type (unsigned int p_type) | |
1621 | { | |
1622 | const char *pt; | |
1623 | switch (p_type) | |
1624 | { | |
1625 | case PT_NULL: pt = "NULL"; break; | |
1626 | case PT_LOAD: pt = "LOAD"; break; | |
1627 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1628 | case PT_INTERP: pt = "INTERP"; break; | |
1629 | case PT_NOTE: pt = "NOTE"; break; | |
1630 | case PT_SHLIB: pt = "SHLIB"; break; | |
1631 | case PT_PHDR: pt = "PHDR"; break; | |
1632 | case PT_TLS: pt = "TLS"; break; | |
1633 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1634 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1635 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1636 | default: pt = NULL; break; | |
1637 | } | |
1638 | return pt; | |
1639 | } | |
1640 | ||
f0b79d91 L |
1641 | /* Print out the program headers. */ |
1642 | ||
b34976b6 | 1643 | bfd_boolean |
217aa764 | 1644 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1645 | { |
a50b1753 | 1646 | FILE *f = (FILE *) farg; |
252b5132 RH |
1647 | Elf_Internal_Phdr *p; |
1648 | asection *s; | |
1649 | bfd_byte *dynbuf = NULL; | |
1650 | ||
1651 | p = elf_tdata (abfd)->phdr; | |
1652 | if (p != NULL) | |
1653 | { | |
1654 | unsigned int i, c; | |
1655 | ||
1656 | fprintf (f, _("\nProgram Header:\n")); | |
1657 | c = elf_elfheader (abfd)->e_phnum; | |
1658 | for (i = 0; i < c; i++, p++) | |
1659 | { | |
cedc298e | 1660 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1661 | char buf[20]; |
1662 | ||
cedc298e | 1663 | if (pt == NULL) |
252b5132 | 1664 | { |
cedc298e L |
1665 | sprintf (buf, "0x%lx", p->p_type); |
1666 | pt = buf; | |
252b5132 | 1667 | } |
dc810e39 | 1668 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1669 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1670 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1671 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1672 | fprintf (f, " paddr 0x"); |
60b89a18 | 1673 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1674 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1675 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1676 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1677 | fprintf (f, " memsz 0x"); |
60b89a18 | 1678 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1679 | fprintf (f, " flags %c%c%c", |
1680 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1681 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1682 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1683 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1684 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1685 | fprintf (f, "\n"); |
1686 | } | |
1687 | } | |
1688 | ||
1689 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1690 | if (s != NULL) | |
1691 | { | |
cb33740c | 1692 | unsigned int elfsec; |
dc810e39 | 1693 | unsigned long shlink; |
252b5132 RH |
1694 | bfd_byte *extdyn, *extdynend; |
1695 | size_t extdynsize; | |
217aa764 | 1696 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1697 | |
1698 | fprintf (f, _("\nDynamic Section:\n")); | |
1699 | ||
eea6121a | 1700 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1701 | goto error_return; |
1702 | ||
1703 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1704 | if (elfsec == SHN_BAD) |
252b5132 | 1705 | goto error_return; |
dc810e39 | 1706 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1707 | |
1708 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1709 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1710 | ||
1711 | extdyn = dynbuf; | |
06614111 NC |
1712 | /* PR 17512: file: 6f427532. */ |
1713 | if (s->size < extdynsize) | |
1714 | goto error_return; | |
eea6121a | 1715 | extdynend = extdyn + s->size; |
1036838a | 1716 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1717 | Fix range check. */ |
1036838a | 1718 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1719 | { |
1720 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1721 | const char *name = ""; |
252b5132 | 1722 | char ab[20]; |
b34976b6 | 1723 | bfd_boolean stringp; |
ad9563d6 | 1724 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1725 | |
217aa764 | 1726 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1727 | |
1728 | if (dyn.d_tag == DT_NULL) | |
1729 | break; | |
1730 | ||
b34976b6 | 1731 | stringp = FALSE; |
252b5132 RH |
1732 | switch (dyn.d_tag) |
1733 | { | |
1734 | default: | |
ad9563d6 CM |
1735 | if (bed->elf_backend_get_target_dtag) |
1736 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1737 | ||
1738 | if (!strcmp (name, "")) | |
1739 | { | |
cd9af601 | 1740 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1741 | name = ab; |
1742 | } | |
252b5132 RH |
1743 | break; |
1744 | ||
b34976b6 | 1745 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1746 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1747 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1748 | case DT_HASH: name = "HASH"; break; | |
1749 | case DT_STRTAB: name = "STRTAB"; break; | |
1750 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1751 | case DT_RELA: name = "RELA"; break; | |
1752 | case DT_RELASZ: name = "RELASZ"; break; | |
1753 | case DT_RELAENT: name = "RELAENT"; break; | |
1754 | case DT_STRSZ: name = "STRSZ"; break; | |
1755 | case DT_SYMENT: name = "SYMENT"; break; | |
1756 | case DT_INIT: name = "INIT"; break; | |
1757 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1758 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1759 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1760 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1761 | case DT_REL: name = "REL"; break; | |
1762 | case DT_RELSZ: name = "RELSZ"; break; | |
1763 | case DT_RELENT: name = "RELENT"; break; | |
1764 | case DT_PLTREL: name = "PLTREL"; break; | |
1765 | case DT_DEBUG: name = "DEBUG"; break; | |
1766 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1767 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1768 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1769 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1770 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1771 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1772 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1773 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1774 | case DT_FLAGS: name = "FLAGS"; break; |
1775 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1776 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1777 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1778 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1779 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1780 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1781 | case DT_FEATURE: name = "FEATURE"; break; | |
1782 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1783 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1784 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1785 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1786 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1787 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1788 | case DT_PLTPAD: name = "PLTPAD"; break; |
1789 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1790 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1791 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1792 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1793 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1794 | case DT_VERSYM: name = "VERSYM"; break; |
1795 | case DT_VERDEF: name = "VERDEF"; break; | |
1796 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1797 | case DT_VERNEED: name = "VERNEED"; break; | |
1798 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1799 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1800 | case DT_USED: name = "USED"; break; |
b34976b6 | 1801 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1802 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1803 | } |
1804 | ||
ad9563d6 | 1805 | fprintf (f, " %-20s ", name); |
252b5132 | 1806 | if (! stringp) |
a1f3c56e AN |
1807 | { |
1808 | fprintf (f, "0x"); | |
1809 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1810 | } | |
252b5132 RH |
1811 | else |
1812 | { | |
1813 | const char *string; | |
dc810e39 | 1814 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1815 | |
dc810e39 | 1816 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1817 | if (string == NULL) |
1818 | goto error_return; | |
1819 | fprintf (f, "%s", string); | |
1820 | } | |
1821 | fprintf (f, "\n"); | |
1822 | } | |
1823 | ||
1824 | free (dynbuf); | |
1825 | dynbuf = NULL; | |
1826 | } | |
1827 | ||
1828 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1829 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1830 | { | |
fc0e6df6 | 1831 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1832 | return FALSE; |
252b5132 RH |
1833 | } |
1834 | ||
1835 | if (elf_dynverdef (abfd) != 0) | |
1836 | { | |
1837 | Elf_Internal_Verdef *t; | |
1838 | ||
1839 | fprintf (f, _("\nVersion definitions:\n")); | |
1840 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1841 | { | |
1842 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1843 | t->vd_flags, t->vd_hash, |
1844 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1845 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1846 | { |
1847 | Elf_Internal_Verdaux *a; | |
1848 | ||
1849 | fprintf (f, "\t"); | |
1850 | for (a = t->vd_auxptr->vda_nextptr; | |
1851 | a != NULL; | |
1852 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1853 | fprintf (f, "%s ", |
1854 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1855 | fprintf (f, "\n"); |
1856 | } | |
1857 | } | |
1858 | } | |
1859 | ||
1860 | if (elf_dynverref (abfd) != 0) | |
1861 | { | |
1862 | Elf_Internal_Verneed *t; | |
1863 | ||
1864 | fprintf (f, _("\nVersion References:\n")); | |
1865 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1866 | { | |
1867 | Elf_Internal_Vernaux *a; | |
1868 | ||
d0fb9a8d JJ |
1869 | fprintf (f, _(" required from %s:\n"), |
1870 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1871 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1872 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1873 | a->vna_flags, a->vna_other, |
1874 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1875 | } |
1876 | } | |
1877 | ||
b34976b6 | 1878 | return TRUE; |
252b5132 RH |
1879 | |
1880 | error_return: | |
1881 | if (dynbuf != NULL) | |
1882 | free (dynbuf); | |
b34976b6 | 1883 | return FALSE; |
252b5132 RH |
1884 | } |
1885 | ||
7e6e972f L |
1886 | /* Get version name. If BASE_P is TRUE, return "Base" for VER_FLG_BASE |
1887 | and return symbol version for symbol version itself. */ | |
bb4d2ac2 L |
1888 | |
1889 | const char * | |
1081065c L |
1890 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1891 | bfd_boolean base_p, | |
1892 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1893 | { |
1894 | const char *version_string = NULL; | |
1895 | if (elf_dynversym (abfd) != 0 | |
1896 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1897 | { | |
1898 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1899 | ||
1900 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1901 | vernum &= VERSYM_VERSION; | |
1902 | ||
1903 | if (vernum == 0) | |
1904 | version_string = ""; | |
1f6f5dba L |
1905 | else if (vernum == 1 |
1906 | && (vernum > elf_tdata (abfd)->cverdefs | |
1907 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1908 | == VER_FLG_BASE))) | |
7e6e972f | 1909 | version_string = base_p ? "Base" : ""; |
bb4d2ac2 | 1910 | else if (vernum <= elf_tdata (abfd)->cverdefs) |
7e6e972f L |
1911 | { |
1912 | const char *nodename | |
1913 | = elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
8d55d10a AM |
1914 | version_string = ""; |
1915 | if (base_p | |
1916 | || nodename == NULL | |
1917 | || symbol->name == NULL | |
1918 | || strcmp (symbol->name, nodename) != 0) | |
1919 | version_string = nodename; | |
7e6e972f | 1920 | } |
bb4d2ac2 L |
1921 | else |
1922 | { | |
1923 | Elf_Internal_Verneed *t; | |
1924 | ||
7a815dd5 | 1925 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1926 | for (t = elf_tdata (abfd)->verref; |
1927 | t != NULL; | |
1928 | t = t->vn_nextref) | |
1929 | { | |
1930 | Elf_Internal_Vernaux *a; | |
1931 | ||
1932 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1933 | { | |
1934 | if (a->vna_other == vernum) | |
1935 | { | |
1936 | version_string = a->vna_nodename; | |
1937 | break; | |
1938 | } | |
1939 | } | |
1940 | } | |
1941 | } | |
1942 | } | |
1943 | return version_string; | |
1944 | } | |
1945 | ||
252b5132 RH |
1946 | /* Display ELF-specific fields of a symbol. */ |
1947 | ||
1948 | void | |
217aa764 AM |
1949 | bfd_elf_print_symbol (bfd *abfd, |
1950 | void *filep, | |
1951 | asymbol *symbol, | |
1952 | bfd_print_symbol_type how) | |
252b5132 | 1953 | { |
a50b1753 | 1954 | FILE *file = (FILE *) filep; |
252b5132 RH |
1955 | switch (how) |
1956 | { | |
1957 | case bfd_print_symbol_name: | |
1958 | fprintf (file, "%s", symbol->name); | |
1959 | break; | |
1960 | case bfd_print_symbol_more: | |
1961 | fprintf (file, "elf "); | |
60b89a18 | 1962 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1963 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1964 | break; |
1965 | case bfd_print_symbol_all: | |
1966 | { | |
4e8a9624 AM |
1967 | const char *section_name; |
1968 | const char *name = NULL; | |
9c5bfbb7 | 1969 | const struct elf_backend_data *bed; |
7a13edea | 1970 | unsigned char st_other; |
dbb410c3 | 1971 | bfd_vma val; |
bb4d2ac2 L |
1972 | const char *version_string; |
1973 | bfd_boolean hidden; | |
c044fabd | 1974 | |
252b5132 | 1975 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1976 | |
1977 | bed = get_elf_backend_data (abfd); | |
1978 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1979 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1980 | |
1981 | if (name == NULL) | |
1982 | { | |
7ee38065 | 1983 | name = symbol->name; |
217aa764 | 1984 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1985 | } |
1986 | ||
252b5132 RH |
1987 | fprintf (file, " %s\t", section_name); |
1988 | /* Print the "other" value for a symbol. For common symbols, | |
1989 | we've already printed the size; now print the alignment. | |
1990 | For other symbols, we have no specified alignment, and | |
1991 | we've printed the address; now print the size. */ | |
dcf6c779 | 1992 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1993 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1994 | else | |
1995 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1996 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1997 | |
1998 | /* If we have version information, print it. */ | |
60bb06bc L |
1999 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2000 | symbol, | |
1081065c | 2001 | TRUE, |
60bb06bc | 2002 | &hidden); |
bb4d2ac2 | 2003 | if (version_string) |
252b5132 | 2004 | { |
bb4d2ac2 | 2005 | if (!hidden) |
252b5132 RH |
2006 | fprintf (file, " %-11s", version_string); |
2007 | else | |
2008 | { | |
2009 | int i; | |
2010 | ||
2011 | fprintf (file, " (%s)", version_string); | |
2012 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2013 | putc (' ', file); | |
2014 | } | |
2015 | } | |
2016 | ||
2017 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2018 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2019 | |
7a13edea NC |
2020 | switch (st_other) |
2021 | { | |
2022 | case 0: break; | |
2023 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2024 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2025 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2026 | default: | |
2027 | /* Some other non-defined flags are also present, so print | |
2028 | everything hex. */ | |
2029 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2030 | } | |
252b5132 | 2031 | |
587ff49e | 2032 | fprintf (file, " %s", name); |
252b5132 RH |
2033 | } |
2034 | break; | |
2035 | } | |
2036 | } | |
252b5132 RH |
2037 | \f |
2038 | /* ELF .o/exec file reading */ | |
2039 | ||
c044fabd | 2040 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2041 | |
b34976b6 | 2042 | bfd_boolean |
217aa764 | 2043 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2044 | { |
4fbb74a6 AM |
2045 | Elf_Internal_Shdr *hdr; |
2046 | Elf_Internal_Ehdr *ehdr; | |
2047 | const struct elf_backend_data *bed; | |
90937f86 | 2048 | const char *name; |
bf67003b NC |
2049 | bfd_boolean ret = TRUE; |
2050 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2051 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2052 | static unsigned int nesting = 0; |
252b5132 | 2053 | |
4fbb74a6 AM |
2054 | if (shindex >= elf_numsections (abfd)) |
2055 | return FALSE; | |
2056 | ||
bf67003b NC |
2057 | if (++ nesting > 3) |
2058 | { | |
2059 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2060 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2061 | loop. Detect this here, by refusing to load a section that we are |
2062 | already in the process of loading. We only trigger this test if | |
2063 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2064 | can expect to recurse at least once. |
2065 | ||
2066 | FIXME: It would be better if this array was attached to the bfd, | |
2067 | rather than being held in a static pointer. */ | |
2068 | ||
2069 | if (sections_being_created_abfd != abfd) | |
2070 | sections_being_created = NULL; | |
bf67003b NC |
2071 | if (sections_being_created == NULL) |
2072 | { | |
446f7ed5 | 2073 | size_t amt = elf_numsections (abfd) * sizeof (bfd_boolean); |
ed02cdb5 NC |
2074 | |
2075 | /* PR 26005: Do not use bfd_zalloc here as the memory might | |
2076 | be released before the bfd has been fully scanned. */ | |
2077 | sections_being_created = (bfd_boolean *) bfd_malloc (amt); | |
96d3b80f AM |
2078 | if (sections_being_created == NULL) |
2079 | return FALSE; | |
6fd1d259 | 2080 | memset (sections_being_created, FALSE, amt); |
5a4b0ccc | 2081 | sections_being_created_abfd = abfd; |
bf67003b NC |
2082 | } |
2083 | if (sections_being_created [shindex]) | |
2084 | { | |
4eca0228 | 2085 | _bfd_error_handler |
871b3ab2 | 2086 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2087 | return FALSE; |
2088 | } | |
2089 | sections_being_created [shindex] = TRUE; | |
2090 | } | |
2091 | ||
4fbb74a6 AM |
2092 | hdr = elf_elfsections (abfd)[shindex]; |
2093 | ehdr = elf_elfheader (abfd); | |
2094 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2095 | hdr->sh_name); |
933d961a | 2096 | if (name == NULL) |
bf67003b | 2097 | goto fail; |
252b5132 | 2098 | |
4fbb74a6 | 2099 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2100 | switch (hdr->sh_type) |
2101 | { | |
2102 | case SHT_NULL: | |
2103 | /* Inactive section. Throw it away. */ | |
bf67003b | 2104 | goto success; |
252b5132 | 2105 | |
bf67003b NC |
2106 | case SHT_PROGBITS: /* Normal section with contents. */ |
2107 | case SHT_NOBITS: /* .bss section. */ | |
2108 | case SHT_HASH: /* .hash section. */ | |
2109 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2110 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2111 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2112 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2113 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2114 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2115 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2116 | goto success; | |
252b5132 | 2117 | |
797fc050 | 2118 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2119 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2120 | goto fail; |
2121 | ||
cfcac11d NC |
2122 | if (hdr->sh_link > elf_numsections (abfd)) |
2123 | { | |
caa83f8b | 2124 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2125 | field set to SHN_BEFORE or SHN_AFTER. */ |
2126 | switch (bfd_get_arch (abfd)) | |
2127 | { | |
caa83f8b | 2128 | case bfd_arch_i386: |
cfcac11d NC |
2129 | case bfd_arch_sparc: |
2130 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2131 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2132 | break; | |
2133 | /* Otherwise fall through. */ | |
2134 | default: | |
bf67003b | 2135 | goto fail; |
cfcac11d NC |
2136 | } |
2137 | } | |
2138 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2139 | goto fail; |
cfcac11d | 2140 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2141 | { |
2142 | Elf_Internal_Shdr *dynsymhdr; | |
2143 | ||
2144 | /* The shared libraries distributed with hpux11 have a bogus | |
2145 | sh_link field for the ".dynamic" section. Find the | |
2146 | string table for the ".dynsym" section instead. */ | |
2147 | if (elf_dynsymtab (abfd) != 0) | |
2148 | { | |
2149 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2150 | hdr->sh_link = dynsymhdr->sh_link; | |
2151 | } | |
2152 | else | |
2153 | { | |
2154 | unsigned int i, num_sec; | |
2155 | ||
2156 | num_sec = elf_numsections (abfd); | |
2157 | for (i = 1; i < num_sec; i++) | |
2158 | { | |
2159 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2160 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2161 | { | |
2162 | hdr->sh_link = dynsymhdr->sh_link; | |
2163 | break; | |
2164 | } | |
2165 | } | |
2166 | } | |
2167 | } | |
bf67003b | 2168 | goto success; |
797fc050 | 2169 | |
bf67003b | 2170 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2171 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2172 | goto success; |
252b5132 | 2173 | |
a50b2160 | 2174 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2175 | goto fail; |
2176 | ||
3337c1e5 | 2177 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2178 | { |
2179 | if (hdr->sh_size != 0) | |
bf67003b | 2180 | goto fail; |
eee3b786 AM |
2181 | /* Some assemblers erroneously set sh_info to one with a |
2182 | zero sh_size. ld sees this as a global symbol count | |
2183 | of (unsigned) -1. Fix it here. */ | |
2184 | hdr->sh_info = 0; | |
bf67003b | 2185 | goto success; |
eee3b786 | 2186 | } |
bf67003b | 2187 | |
16ad13ec NC |
2188 | /* PR 18854: A binary might contain more than one symbol table. |
2189 | Unusual, but possible. Warn, but continue. */ | |
2190 | if (elf_onesymtab (abfd) != 0) | |
2191 | { | |
4eca0228 | 2192 | _bfd_error_handler |
695344c0 | 2193 | /* xgettext:c-format */ |
871b3ab2 | 2194 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2195 | " - ignoring the table in section %u"), |
16ad13ec NC |
2196 | abfd, shindex); |
2197 | goto success; | |
2198 | } | |
252b5132 | 2199 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2200 | elf_symtab_hdr (abfd) = *hdr; |
2201 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2202 | abfd->flags |= HAS_SYMS; |
2203 | ||
2204 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2205 | SHF_ALLOC is set, and this is a shared object, then we also |
2206 | treat this section as a BFD section. We can not base the | |
2207 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2208 | set in a relocatable object file, which would confuse the | |
2209 | linker. */ | |
252b5132 RH |
2210 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2211 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2212 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2213 | shindex)) | |
bf67003b | 2214 | goto fail; |
252b5132 | 2215 | |
1b3a8575 AM |
2216 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2217 | can't read symbols without that section loaded as well. It | |
2218 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2219 | { |
2220 | elf_section_list * entry; | |
2221 | unsigned int i, num_sec; | |
1b3a8575 | 2222 | |
6a40cf0c NC |
2223 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2224 | if (entry->hdr.sh_link == shindex) | |
2225 | goto success; | |
2226 | ||
2227 | num_sec = elf_numsections (abfd); | |
2228 | for (i = shindex + 1; i < num_sec; i++) | |
2229 | { | |
2230 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2231 | ||
2232 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2233 | && hdr2->sh_link == shindex) | |
2234 | break; | |
2235 | } | |
2236 | ||
2237 | if (i == num_sec) | |
2238 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2239 | { |
2240 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2241 | |
1b3a8575 AM |
2242 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2243 | && hdr2->sh_link == shindex) | |
2244 | break; | |
2245 | } | |
6a40cf0c NC |
2246 | |
2247 | if (i != shindex) | |
2248 | ret = bfd_section_from_shdr (abfd, i); | |
2249 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2250 | goto success; | |
2251 | } | |
252b5132 | 2252 | |
bf67003b | 2253 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2254 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2255 | goto success; |
252b5132 | 2256 | |
a50b2160 | 2257 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2258 | goto fail; |
2259 | ||
eee3b786 AM |
2260 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2261 | { | |
2262 | if (hdr->sh_size != 0) | |
bf67003b NC |
2263 | goto fail; |
2264 | ||
eee3b786 AM |
2265 | /* Some linkers erroneously set sh_info to one with a |
2266 | zero sh_size. ld sees this as a global symbol count | |
2267 | of (unsigned) -1. Fix it here. */ | |
2268 | hdr->sh_info = 0; | |
bf67003b | 2269 | goto success; |
eee3b786 | 2270 | } |
bf67003b | 2271 | |
16ad13ec NC |
2272 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2273 | Unusual, but possible. Warn, but continue. */ | |
2274 | if (elf_dynsymtab (abfd) != 0) | |
2275 | { | |
4eca0228 | 2276 | _bfd_error_handler |
695344c0 | 2277 | /* xgettext:c-format */ |
871b3ab2 | 2278 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2279 | " - ignoring the table in section %u"), |
16ad13ec NC |
2280 | abfd, shindex); |
2281 | goto success; | |
2282 | } | |
252b5132 RH |
2283 | elf_dynsymtab (abfd) = shindex; |
2284 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2285 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2286 | abfd->flags |= HAS_SYMS; | |
2287 | ||
2288 | /* Besides being a symbol table, we also treat this as a regular | |
2289 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2290 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2291 | goto success; | |
252b5132 | 2292 | |
bf67003b | 2293 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2294 | { |
2295 | elf_section_list * entry; | |
9ad5cbcf | 2296 | |
6a40cf0c NC |
2297 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2298 | if (entry->ndx == shindex) | |
2299 | goto success; | |
07d6d2b8 | 2300 | |
7a6e0d89 | 2301 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2302 | if (entry == NULL) |
2303 | goto fail; | |
2304 | entry->ndx = shindex; | |
2305 | entry->hdr = * hdr; | |
2306 | entry->next = elf_symtab_shndx_list (abfd); | |
2307 | elf_symtab_shndx_list (abfd) = entry; | |
2308 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2309 | goto success; | |
2310 | } | |
9ad5cbcf | 2311 | |
bf67003b | 2312 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2313 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2314 | goto success; |
2315 | ||
252b5132 RH |
2316 | if (ehdr->e_shstrndx == shindex) |
2317 | { | |
2318 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2319 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2320 | goto success; |
252b5132 | 2321 | } |
bf67003b | 2322 | |
1b3a8575 AM |
2323 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2324 | { | |
2325 | symtab_strtab: | |
2326 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2327 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2328 | goto success; |
1b3a8575 | 2329 | } |
bf67003b | 2330 | |
1b3a8575 AM |
2331 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2332 | { | |
2333 | dynsymtab_strtab: | |
2334 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2335 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2336 | elf_elfsections (abfd)[shindex] = hdr; | |
2337 | /* We also treat this as a regular section, so that objcopy | |
2338 | can handle it. */ | |
bf67003b NC |
2339 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2340 | shindex); | |
2341 | goto success; | |
1b3a8575 | 2342 | } |
252b5132 | 2343 | |
1b3a8575 AM |
2344 | /* If the string table isn't one of the above, then treat it as a |
2345 | regular section. We need to scan all the headers to be sure, | |
2346 | just in case this strtab section appeared before the above. */ | |
2347 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2348 | { | |
2349 | unsigned int i, num_sec; | |
252b5132 | 2350 | |
1b3a8575 AM |
2351 | num_sec = elf_numsections (abfd); |
2352 | for (i = 1; i < num_sec; i++) | |
2353 | { | |
2354 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2355 | if (hdr2->sh_link == shindex) | |
2356 | { | |
933d961a JJ |
2357 | /* Prevent endless recursion on broken objects. */ |
2358 | if (i == shindex) | |
bf67003b | 2359 | goto fail; |
1b3a8575 | 2360 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2361 | goto fail; |
1b3a8575 AM |
2362 | if (elf_onesymtab (abfd) == i) |
2363 | goto symtab_strtab; | |
2364 | if (elf_dynsymtab (abfd) == i) | |
2365 | goto dynsymtab_strtab; | |
2366 | } | |
2367 | } | |
2368 | } | |
bf67003b NC |
2369 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2370 | goto success; | |
252b5132 RH |
2371 | |
2372 | case SHT_REL: | |
2373 | case SHT_RELA: | |
2374 | /* *These* do a lot of work -- but build no sections! */ | |
2375 | { | |
2376 | asection *target_sect; | |
d4730f92 | 2377 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2378 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2379 | struct bfd_elf_section_data *esdt; |
252b5132 | 2380 | |
aa2ca951 JJ |
2381 | if (hdr->sh_entsize |
2382 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2383 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2384 | goto fail; |
a50b2160 | 2385 | |
03ae5f59 | 2386 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2387 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2388 | { |
4eca0228 | 2389 | _bfd_error_handler |
695344c0 | 2390 | /* xgettext:c-format */ |
871b3ab2 | 2391 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2392 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2393 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2394 | shindex); | |
2395 | goto success; | |
03ae5f59 ILT |
2396 | } |
2397 | ||
252b5132 RH |
2398 | /* For some incomprehensible reason Oracle distributes |
2399 | libraries for Solaris in which some of the objects have | |
2400 | bogus sh_link fields. It would be nice if we could just | |
2401 | reject them, but, unfortunately, some people need to use | |
2402 | them. We scan through the section headers; if we find only | |
2403 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2404 | to it. I hope this doesn't break anything. |
2405 | ||
2406 | Don't do it on executable nor shared library. */ | |
2407 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2408 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2409 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2410 | { | |
9ad5cbcf | 2411 | unsigned int scan; |
252b5132 RH |
2412 | int found; |
2413 | ||
2414 | found = 0; | |
9ad5cbcf | 2415 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2416 | { |
2417 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2418 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2419 | { | |
2420 | if (found != 0) | |
2421 | { | |
2422 | found = 0; | |
2423 | break; | |
2424 | } | |
2425 | found = scan; | |
2426 | } | |
2427 | } | |
2428 | if (found != 0) | |
2429 | hdr->sh_link = found; | |
2430 | } | |
2431 | ||
2432 | /* Get the symbol table. */ | |
1b3a8575 AM |
2433 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2434 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2435 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2436 | goto fail; |
252b5132 | 2437 | |
a4bcd733 AM |
2438 | /* If this is an alloc section in an executable or shared |
2439 | library, or the reloc section does not use the main symbol | |
2440 | table we don't treat it as a reloc section. BFD can't | |
2441 | adequately represent such a section, so at least for now, | |
2442 | we don't try. We just present it as a normal section. We | |
2443 | also can't use it as a reloc section if it points to the | |
2444 | null section, an invalid section, another reloc section, or | |
2445 | its sh_link points to the null section. */ | |
2446 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2447 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2448 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2449 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2450 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2451 | || hdr->sh_info >= num_sec |
2452 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2453 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2454 | { |
2455 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2456 | shindex); | |
2457 | goto success; | |
2458 | } | |
252b5132 RH |
2459 | |
2460 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2461 | goto fail; |
2462 | ||
252b5132 RH |
2463 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2464 | if (target_sect == NULL) | |
bf67003b | 2465 | goto fail; |
252b5132 | 2466 | |
d4730f92 BS |
2467 | esdt = elf_section_data (target_sect); |
2468 | if (hdr->sh_type == SHT_RELA) | |
2469 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2470 | else |
d4730f92 BS |
2471 | p_hdr = &esdt->rel.hdr; |
2472 | ||
a7ba3896 NC |
2473 | /* PR 17512: file: 0b4f81b7. |
2474 | Also see PR 24456, for a file which deliberately has two reloc | |
2475 | sections. */ | |
06614111 | 2476 | if (*p_hdr != NULL) |
a7ba3896 | 2477 | { |
a859124d | 2478 | if (!bed->init_secondary_reloc_section (abfd, hdr, name, shindex)) |
a8e14f4c NC |
2479 | { |
2480 | _bfd_error_handler | |
2481 | /* xgettext:c-format */ | |
a859124d AM |
2482 | (_("%pB: warning: secondary relocation section '%s' " |
2483 | "for section %pA found - ignoring"), | |
a8e14f4c NC |
2484 | abfd, name, target_sect); |
2485 | } | |
a7ba3896 NC |
2486 | goto success; |
2487 | } | |
a8e14f4c | 2488 | |
ef53be89 | 2489 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2490 | if (hdr2 == NULL) |
bf67003b | 2491 | goto fail; |
252b5132 | 2492 | *hdr2 = *hdr; |
d4730f92 | 2493 | *p_hdr = hdr2; |
252b5132 | 2494 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2495 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2496 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2497 | target_sect->flags |= SEC_RELOC; |
2498 | target_sect->relocation = NULL; | |
2499 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2500 | /* In the section to which the relocations apply, mark whether |
2501 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2502 | if (hdr->sh_size != 0) |
d4730f92 BS |
2503 | { |
2504 | if (hdr->sh_type == SHT_RELA) | |
2505 | target_sect->use_rela_p = 1; | |
2506 | } | |
252b5132 | 2507 | abfd->flags |= HAS_RELOC; |
bf67003b | 2508 | goto success; |
252b5132 | 2509 | } |
252b5132 RH |
2510 | |
2511 | case SHT_GNU_verdef: | |
2512 | elf_dynverdef (abfd) = shindex; | |
2513 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2514 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2515 | goto success; | |
252b5132 RH |
2516 | |
2517 | case SHT_GNU_versym: | |
a50b2160 | 2518 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2519 | goto fail; |
2520 | ||
252b5132 RH |
2521 | elf_dynversym (abfd) = shindex; |
2522 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2523 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2524 | goto success; | |
252b5132 RH |
2525 | |
2526 | case SHT_GNU_verneed: | |
2527 | elf_dynverref (abfd) = shindex; | |
2528 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2529 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2530 | goto success; | |
252b5132 RH |
2531 | |
2532 | case SHT_SHLIB: | |
bf67003b | 2533 | goto success; |
252b5132 | 2534 | |
dbb410c3 | 2535 | case SHT_GROUP: |
44534af3 | 2536 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2537 | goto fail; |
2538 | ||
6dc132d9 | 2539 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2540 | goto fail; |
2541 | ||
bf67003b | 2542 | goto success; |
dbb410c3 | 2543 | |
252b5132 | 2544 | default: |
104d59d1 JM |
2545 | /* Possibly an attributes section. */ |
2546 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2547 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2548 | { | |
2549 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2550 | goto fail; |
104d59d1 | 2551 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2552 | goto success; |
104d59d1 JM |
2553 | } |
2554 | ||
252b5132 | 2555 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2556 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2557 | goto success; |
3eb70a79 L |
2558 | |
2559 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2560 | { | |
2561 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2562 | /* FIXME: How to properly handle allocated section reserved | |
2563 | for applications? */ | |
4eca0228 | 2564 | _bfd_error_handler |
695344c0 | 2565 | /* xgettext:c-format */ |
871b3ab2 | 2566 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2567 | abfd, hdr->sh_type, name); |
3eb70a79 | 2568 | else |
bf67003b NC |
2569 | { |
2570 | /* Allow sections reserved for applications. */ | |
2571 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2572 | shindex); | |
2573 | goto success; | |
2574 | } | |
3eb70a79 L |
2575 | } |
2576 | else if (hdr->sh_type >= SHT_LOPROC | |
2577 | && hdr->sh_type <= SHT_HIPROC) | |
2578 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2579 | _bfd_error_handler |
695344c0 | 2580 | /* xgettext:c-format */ |
871b3ab2 | 2581 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2582 | abfd, hdr->sh_type, name); |
3eb70a79 | 2583 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2584 | { |
2585 | /* Unrecognised OS-specific sections. */ | |
2586 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2587 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2588 | required to correctly process the section and the file should |
ff15b240 | 2589 | be rejected with an error message. */ |
4eca0228 | 2590 | _bfd_error_handler |
695344c0 | 2591 | /* xgettext:c-format */ |
871b3ab2 | 2592 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2593 | abfd, hdr->sh_type, name); |
ff15b240 | 2594 | else |
bf67003b NC |
2595 | { |
2596 | /* Otherwise it should be processed. */ | |
2597 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2598 | goto success; | |
2599 | } | |
ff15b240 | 2600 | } |
3eb70a79 L |
2601 | else |
2602 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2603 | _bfd_error_handler |
695344c0 | 2604 | /* xgettext:c-format */ |
871b3ab2 | 2605 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2606 | abfd, hdr->sh_type, name); |
3eb70a79 | 2607 | |
bf67003b | 2608 | goto fail; |
252b5132 RH |
2609 | } |
2610 | ||
bf67003b NC |
2611 | fail: |
2612 | ret = FALSE; | |
2613 | success: | |
e5b470e2 | 2614 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2615 | sections_being_created [shindex] = FALSE; |
2616 | if (-- nesting == 0) | |
5a4b0ccc | 2617 | { |
ed02cdb5 | 2618 | free (sections_being_created); |
5a4b0ccc | 2619 | sections_being_created = NULL; |
ed02cdb5 | 2620 | sections_being_created_abfd = NULL; |
5a4b0ccc | 2621 | } |
bf67003b | 2622 | return ret; |
252b5132 RH |
2623 | } |
2624 | ||
87d72d41 | 2625 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2626 | |
87d72d41 AM |
2627 | Elf_Internal_Sym * |
2628 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2629 | bfd *abfd, | |
2630 | unsigned long r_symndx) | |
ec338859 | 2631 | { |
ec338859 AM |
2632 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2633 | ||
a5d1b3b5 AM |
2634 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2635 | { | |
2636 | Elf_Internal_Shdr *symtab_hdr; | |
2637 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2638 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2639 | |
a5d1b3b5 AM |
2640 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2641 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2642 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2643 | return NULL; |
9ad5cbcf | 2644 | |
a5d1b3b5 AM |
2645 | if (cache->abfd != abfd) |
2646 | { | |
2647 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2648 | cache->abfd = abfd; | |
2649 | } | |
2650 | cache->indx[ent] = r_symndx; | |
ec338859 | 2651 | } |
a5d1b3b5 | 2652 | |
87d72d41 | 2653 | return &cache->sym[ent]; |
ec338859 AM |
2654 | } |
2655 | ||
252b5132 RH |
2656 | /* Given an ELF section number, retrieve the corresponding BFD |
2657 | section. */ | |
2658 | ||
2659 | asection * | |
91d6fa6a | 2660 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2661 | { |
91d6fa6a | 2662 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2663 | return NULL; |
91d6fa6a | 2664 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2665 | } |
2666 | ||
b35d266b | 2667 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2668 | { |
0112cd26 | 2669 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2670 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2671 | }; |
2672 | ||
b35d266b | 2673 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2674 | { |
0112cd26 | 2675 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2676 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2677 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2678 | }; |
2679 | ||
b35d266b | 2680 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2681 | { |
07d6d2b8 AM |
2682 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2683 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2684 | /* There are more DWARF sections than these, but they needn't be added here |
2685 | unless you have to cope with broken compilers that don't emit section | |
2686 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2687 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2688 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2689 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2690 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2691 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2692 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2693 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2694 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2695 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2696 | }; |
2697 | ||
b35d266b | 2698 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2699 | { |
07d6d2b8 | 2700 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2701 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2702 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2703 | }; |
2704 | ||
b35d266b | 2705 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2706 | { |
0112cd26 | 2707 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2708 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2709 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2710 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2711 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2712 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2713 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2714 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2715 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2716 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2717 | }; |
2718 | ||
b35d266b | 2719 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2720 | { |
07d6d2b8 AM |
2721 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2722 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2723 | }; |
2724 | ||
b35d266b | 2725 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2726 | { |
07d6d2b8 | 2727 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2728 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2729 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2730 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2731 | }; |
2732 | ||
b35d266b | 2733 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2734 | { |
0112cd26 | 2735 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2736 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2737 | }; |
2738 | ||
b35d266b | 2739 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2740 | { |
0112cd26 | 2741 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2742 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2743 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2744 | }; |
2745 | ||
b35d266b | 2746 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2747 | { |
6f9dbcd4 | 2748 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2749 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2750 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2751 | }; |
2752 | ||
b35d266b | 2753 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2754 | { |
0112cd26 NC |
2755 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2756 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2757 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2758 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2759 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2760 | }; |
2761 | ||
b35d266b | 2762 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2763 | { |
0112cd26 NC |
2764 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2765 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2766 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2767 | /* See struct bfd_elf_special_section declaration for the semantics of |
2768 | this special case where .prefix_length != strlen (.prefix). */ | |
2769 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2770 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2771 | }; |
2772 | ||
b35d266b | 2773 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2774 | { |
07d6d2b8 AM |
2775 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2776 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2777 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2778 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2779 | }; |
2780 | ||
1b315056 CS |
2781 | static const struct bfd_elf_special_section special_sections_z[] = |
2782 | { | |
07d6d2b8 AM |
2783 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2784 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2785 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2786 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2787 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2788 | }; |
2789 | ||
e4c93b56 | 2790 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2791 | { |
7f4d3958 | 2792 | special_sections_b, /* 'b' */ |
98ece1b3 | 2793 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2794 | special_sections_d, /* 'd' */ |
2795 | NULL, /* 'e' */ | |
2796 | special_sections_f, /* 'f' */ | |
2797 | special_sections_g, /* 'g' */ | |
2798 | special_sections_h, /* 'h' */ | |
2799 | special_sections_i, /* 'i' */ | |
2800 | NULL, /* 'j' */ | |
2801 | NULL, /* 'k' */ | |
2802 | special_sections_l, /* 'l' */ | |
2803 | NULL, /* 'm' */ | |
2804 | special_sections_n, /* 'n' */ | |
2805 | NULL, /* 'o' */ | |
2806 | special_sections_p, /* 'p' */ | |
2807 | NULL, /* 'q' */ | |
2808 | special_sections_r, /* 'r' */ | |
2809 | special_sections_s, /* 's' */ | |
2810 | special_sections_t, /* 't' */ | |
1b315056 CS |
2811 | NULL, /* 'u' */ |
2812 | NULL, /* 'v' */ | |
2813 | NULL, /* 'w' */ | |
2814 | NULL, /* 'x' */ | |
2815 | NULL, /* 'y' */ | |
2816 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2817 | }; |
2818 | ||
551b43fd AM |
2819 | const struct bfd_elf_special_section * |
2820 | _bfd_elf_get_special_section (const char *name, | |
2821 | const struct bfd_elf_special_section *spec, | |
2822 | unsigned int rela) | |
2f89ff8d L |
2823 | { |
2824 | int i; | |
7f4d3958 | 2825 | int len; |
7f4d3958 | 2826 | |
551b43fd | 2827 | len = strlen (name); |
7f4d3958 | 2828 | |
551b43fd | 2829 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2830 | { |
2831 | int suffix_len; | |
551b43fd | 2832 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2833 | |
2834 | if (len < prefix_len) | |
2835 | continue; | |
551b43fd | 2836 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2837 | continue; |
2838 | ||
551b43fd | 2839 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2840 | if (suffix_len <= 0) |
2841 | { | |
2842 | if (name[prefix_len] != 0) | |
2843 | { | |
2844 | if (suffix_len == 0) | |
2845 | continue; | |
2846 | if (name[prefix_len] != '.' | |
2847 | && (suffix_len == -2 | |
551b43fd | 2848 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2849 | continue; |
2850 | } | |
2851 | } | |
2852 | else | |
2853 | { | |
2854 | if (len < prefix_len + suffix_len) | |
2855 | continue; | |
2856 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2857 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2858 | suffix_len) != 0) |
2859 | continue; | |
2860 | } | |
551b43fd | 2861 | return &spec[i]; |
7dcb9820 | 2862 | } |
2f89ff8d L |
2863 | |
2864 | return NULL; | |
2865 | } | |
2866 | ||
7dcb9820 | 2867 | const struct bfd_elf_special_section * |
29ef7005 | 2868 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2869 | { |
551b43fd AM |
2870 | int i; |
2871 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2872 | const struct elf_backend_data *bed; |
2f89ff8d L |
2873 | |
2874 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2875 | if (sec->name == NULL) |
2876 | return NULL; | |
2f89ff8d | 2877 | |
29ef7005 L |
2878 | bed = get_elf_backend_data (abfd); |
2879 | spec = bed->special_sections; | |
2880 | if (spec) | |
2881 | { | |
2882 | spec = _bfd_elf_get_special_section (sec->name, | |
2883 | bed->special_sections, | |
2884 | sec->use_rela_p); | |
2885 | if (spec != NULL) | |
2886 | return spec; | |
2887 | } | |
2888 | ||
551b43fd AM |
2889 | if (sec->name[0] != '.') |
2890 | return NULL; | |
2f89ff8d | 2891 | |
551b43fd | 2892 | i = sec->name[1] - 'b'; |
1b315056 | 2893 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2894 | return NULL; |
2895 | ||
2896 | spec = special_sections[i]; | |
2f89ff8d | 2897 | |
551b43fd AM |
2898 | if (spec == NULL) |
2899 | return NULL; | |
2900 | ||
2901 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2902 | } |
2903 | ||
b34976b6 | 2904 | bfd_boolean |
217aa764 | 2905 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2906 | { |
2907 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2908 | const struct elf_backend_data *bed; |
7dcb9820 | 2909 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2910 | |
f0abc2a1 AM |
2911 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2912 | if (sdata == NULL) | |
2913 | { | |
a50b1753 | 2914 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2915 | sizeof (*sdata)); |
f0abc2a1 AM |
2916 | if (sdata == NULL) |
2917 | return FALSE; | |
217aa764 | 2918 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2919 | } |
bf572ba0 | 2920 | |
551b43fd AM |
2921 | /* Indicate whether or not this section should use RELA relocations. */ |
2922 | bed = get_elf_backend_data (abfd); | |
2923 | sec->use_rela_p = bed->default_use_rela_p; | |
2924 | ||
8c803a2d AM |
2925 | /* Set up ELF section type and flags for newly created sections, if |
2926 | there is an ABI mandated section. */ | |
2927 | ssect = (*bed->get_sec_type_attr) (abfd, sec); | |
2928 | if (ssect != NULL) | |
2f89ff8d | 2929 | { |
8c803a2d AM |
2930 | elf_section_type (sec) = ssect->type; |
2931 | elf_section_flags (sec) = ssect->attr; | |
2f89ff8d L |
2932 | } |
2933 | ||
f592407e | 2934 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2935 | } |
2936 | ||
2937 | /* Create a new bfd section from an ELF program header. | |
2938 | ||
2939 | Since program segments have no names, we generate a synthetic name | |
2940 | of the form segment<NUM>, where NUM is generally the index in the | |
2941 | program header table. For segments that are split (see below) we | |
2942 | generate the names segment<NUM>a and segment<NUM>b. | |
2943 | ||
2944 | Note that some program segments may have a file size that is different than | |
2945 | (less than) the memory size. All this means is that at execution the | |
2946 | system must allocate the amount of memory specified by the memory size, | |
2947 | but only initialize it with the first "file size" bytes read from the | |
2948 | file. This would occur for example, with program segments consisting | |
2949 | of combined data+bss. | |
2950 | ||
2951 | To handle the above situation, this routine generates TWO bfd sections | |
2952 | for the single program segment. The first has the length specified by | |
2953 | the file size of the segment, and the second has the length specified | |
2954 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2955 | into its initialized and uninitialized parts. |
252b5132 RH |
2956 | |
2957 | */ | |
2958 | ||
b34976b6 | 2959 | bfd_boolean |
217aa764 AM |
2960 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2961 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2962 | int hdr_index, |
a50b1753 | 2963 | const char *type_name) |
252b5132 RH |
2964 | { |
2965 | asection *newsect; | |
2966 | char *name; | |
2967 | char namebuf[64]; | |
d4c88bbb | 2968 | size_t len; |
252b5132 | 2969 | int split; |
502794d4 | 2970 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
2971 | |
2972 | split = ((hdr->p_memsz > 0) | |
2973 | && (hdr->p_filesz > 0) | |
2974 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2975 | |
2976 | if (hdr->p_filesz > 0) | |
252b5132 | 2977 | { |
91d6fa6a | 2978 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2979 | len = strlen (namebuf) + 1; |
a50b1753 | 2980 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2981 | if (!name) |
2982 | return FALSE; | |
2983 | memcpy (name, namebuf, len); | |
2984 | newsect = bfd_make_section (abfd, name); | |
2985 | if (newsect == NULL) | |
2986 | return FALSE; | |
502794d4 CE |
2987 | newsect->vma = hdr->p_vaddr / opb; |
2988 | newsect->lma = hdr->p_paddr / opb; | |
d5191d0c AM |
2989 | newsect->size = hdr->p_filesz; |
2990 | newsect->filepos = hdr->p_offset; | |
2991 | newsect->flags |= SEC_HAS_CONTENTS; | |
2992 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2993 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2994 | { |
d5191d0c AM |
2995 | newsect->flags |= SEC_ALLOC; |
2996 | newsect->flags |= SEC_LOAD; | |
2997 | if (hdr->p_flags & PF_X) | |
2998 | { | |
2999 | /* FIXME: all we known is that it has execute PERMISSION, | |
3000 | may be data. */ | |
3001 | newsect->flags |= SEC_CODE; | |
3002 | } | |
3003 | } | |
3004 | if (!(hdr->p_flags & PF_W)) | |
3005 | { | |
3006 | newsect->flags |= SEC_READONLY; | |
252b5132 | 3007 | } |
252b5132 RH |
3008 | } |
3009 | ||
d5191d0c | 3010 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 3011 | { |
d5191d0c AM |
3012 | bfd_vma align; |
3013 | ||
91d6fa6a | 3014 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 3015 | len = strlen (namebuf) + 1; |
a50b1753 | 3016 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3017 | if (!name) |
b34976b6 | 3018 | return FALSE; |
d4c88bbb | 3019 | memcpy (name, namebuf, len); |
252b5132 RH |
3020 | newsect = bfd_make_section (abfd, name); |
3021 | if (newsect == NULL) | |
b34976b6 | 3022 | return FALSE; |
502794d4 CE |
3023 | newsect->vma = (hdr->p_vaddr + hdr->p_filesz) / opb; |
3024 | newsect->lma = (hdr->p_paddr + hdr->p_filesz) / opb; | |
eea6121a | 3025 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3026 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3027 | align = newsect->vma & -newsect->vma; | |
3028 | if (align == 0 || align > hdr->p_align) | |
3029 | align = hdr->p_align; | |
3030 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3031 | if (hdr->p_type == PT_LOAD) |
3032 | { | |
d5191d0c AM |
3033 | /* Hack for gdb. Segments that have not been modified do |
3034 | not have their contents written to a core file, on the | |
3035 | assumption that a debugger can find the contents in the | |
3036 | executable. We flag this case by setting the fake | |
3037 | section size to zero. Note that "real" bss sections will | |
3038 | always have their contents dumped to the core file. */ | |
3039 | if (bfd_get_format (abfd) == bfd_core) | |
3040 | newsect->size = 0; | |
252b5132 RH |
3041 | newsect->flags |= SEC_ALLOC; |
3042 | if (hdr->p_flags & PF_X) | |
3043 | newsect->flags |= SEC_CODE; | |
3044 | } | |
3045 | if (!(hdr->p_flags & PF_W)) | |
3046 | newsect->flags |= SEC_READONLY; | |
3047 | } | |
3048 | ||
b34976b6 | 3049 | return TRUE; |
252b5132 RH |
3050 | } |
3051 | ||
864619bb KS |
3052 | static bfd_boolean |
3053 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) | |
3054 | { | |
3055 | /* The return value is ignored. Build-ids are considered optional. */ | |
3056 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3057 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3058 | (templ, offset); | |
3059 | return FALSE; | |
3060 | } | |
3061 | ||
b34976b6 | 3062 | bfd_boolean |
91d6fa6a | 3063 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3064 | { |
9c5bfbb7 | 3065 | const struct elf_backend_data *bed; |
20cfcaae NC |
3066 | |
3067 | switch (hdr->p_type) | |
3068 | { | |
3069 | case PT_NULL: | |
91d6fa6a | 3070 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3071 | |
3072 | case PT_LOAD: | |
864619bb KS |
3073 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
3074 | return FALSE; | |
3075 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) | |
3076 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
3077 | return TRUE; | |
20cfcaae NC |
3078 | |
3079 | case PT_DYNAMIC: | |
91d6fa6a | 3080 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3081 | |
3082 | case PT_INTERP: | |
91d6fa6a | 3083 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3084 | |
3085 | case PT_NOTE: | |
91d6fa6a | 3086 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3087 | return FALSE; |
276da9b3 L |
3088 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3089 | hdr->p_align)) | |
b34976b6 AM |
3090 | return FALSE; |
3091 | return TRUE; | |
20cfcaae NC |
3092 | |
3093 | case PT_SHLIB: | |
91d6fa6a | 3094 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3095 | |
3096 | case PT_PHDR: | |
91d6fa6a | 3097 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3098 | |
811072d8 | 3099 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3100 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3101 | "eh_frame_hdr"); |
3102 | ||
2b05f1b7 | 3103 | case PT_GNU_STACK: |
91d6fa6a | 3104 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3105 | |
8c37241b | 3106 | case PT_GNU_RELRO: |
91d6fa6a | 3107 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3108 | |
20cfcaae | 3109 | default: |
8c1acd09 | 3110 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3111 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3112 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3113 | } |
3114 | } | |
3115 | ||
d4730f92 BS |
3116 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3117 | REL or RELA. */ | |
3118 | ||
3119 | Elf_Internal_Shdr * | |
3120 | _bfd_elf_single_rel_hdr (asection *sec) | |
3121 | { | |
3122 | if (elf_section_data (sec)->rel.hdr) | |
3123 | { | |
3124 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3125 | return elf_section_data (sec)->rel.hdr; | |
3126 | } | |
3127 | else | |
3128 | return elf_section_data (sec)->rela.hdr; | |
3129 | } | |
3130 | ||
3e19fb8f L |
3131 | static bfd_boolean |
3132 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3133 | Elf_Internal_Shdr *rel_hdr, | |
3134 | const char *sec_name, | |
3135 | bfd_boolean use_rela_p) | |
3136 | { | |
3137 | char *name = (char *) bfd_alloc (abfd, | |
3138 | sizeof ".rela" + strlen (sec_name)); | |
3139 | if (name == NULL) | |
3140 | return FALSE; | |
3141 | ||
3142 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3143 | rel_hdr->sh_name = | |
3144 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3145 | FALSE); | |
3146 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3147 | return FALSE; | |
3148 | ||
3149 | return TRUE; | |
3150 | } | |
3151 | ||
d4730f92 BS |
3152 | /* Allocate and initialize a section-header for a new reloc section, |
3153 | containing relocations against ASECT. It is stored in RELDATA. If | |
3154 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3155 | relocations. */ | |
23bc299b | 3156 | |
5d13b3b3 | 3157 | static bfd_boolean |
217aa764 | 3158 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3159 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3160 | const char *sec_name, |
3e19fb8f L |
3161 | bfd_boolean use_rela_p, |
3162 | bfd_boolean delay_st_name_p) | |
23bc299b | 3163 | { |
d4730f92 | 3164 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3165 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3166 | |
d4730f92 | 3167 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3168 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3169 | reldata->hdr = rel_hdr; |
23bc299b | 3170 | |
3e19fb8f L |
3171 | if (delay_st_name_p) |
3172 | rel_hdr->sh_name = (unsigned int) -1; | |
3173 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3174 | use_rela_p)) | |
b34976b6 | 3175 | return FALSE; |
23bc299b MM |
3176 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3177 | rel_hdr->sh_entsize = (use_rela_p | |
3178 | ? bed->s->sizeof_rela | |
3179 | : bed->s->sizeof_rel); | |
72de5009 | 3180 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3181 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3182 | rel_hdr->sh_addr = 0; |
3183 | rel_hdr->sh_size = 0; | |
3184 | rel_hdr->sh_offset = 0; | |
3185 | ||
b34976b6 | 3186 | return TRUE; |
23bc299b MM |
3187 | } |
3188 | ||
94be91de JB |
3189 | /* Return the default section type based on the passed in section flags. */ |
3190 | ||
3191 | int | |
3192 | bfd_elf_get_default_section_type (flagword flags) | |
3193 | { | |
0e41bebb | 3194 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3195 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3196 | return SHT_NOBITS; |
3197 | return SHT_PROGBITS; | |
3198 | } | |
3199 | ||
d4730f92 BS |
3200 | struct fake_section_arg |
3201 | { | |
3202 | struct bfd_link_info *link_info; | |
3203 | bfd_boolean failed; | |
3204 | }; | |
3205 | ||
252b5132 RH |
3206 | /* Set up an ELF internal section header for a section. */ |
3207 | ||
252b5132 | 3208 | static void |
d4730f92 | 3209 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3210 | { |
d4730f92 | 3211 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3212 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3213 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3214 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3215 | unsigned int sh_type; |
0ce398f1 | 3216 | const char *name = asect->name; |
3e19fb8f | 3217 | bfd_boolean delay_st_name_p = FALSE; |
233bf4f8 | 3218 | bfd_vma mask; |
252b5132 | 3219 | |
d4730f92 | 3220 | if (arg->failed) |
252b5132 RH |
3221 | { |
3222 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3223 | loop. */ |
252b5132 RH |
3224 | return; |
3225 | } | |
3226 | ||
d4730f92 | 3227 | this_hdr = &esd->this_hdr; |
252b5132 | 3228 | |
f6fe1ccd | 3229 | if (arg->link_info) |
0ce398f1 | 3230 | { |
f6fe1ccd L |
3231 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3232 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3233 | && (asect->flags & SEC_DEBUGGING) | |
3234 | && name[1] == 'd' | |
3235 | && name[6] == '_') | |
3236 | { | |
3237 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3238 | compressed. */ | |
3239 | asect->flags |= SEC_ELF_COMPRESS; | |
dd905818 | 3240 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3241 | name to section name section after it is compressed in |
3242 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3243 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3244 | } |
3245 | } | |
3246 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3247 | { | |
3248 | /* objcopy: rename output DWARF debug section. */ | |
3249 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3250 | { | |
3251 | /* When we decompress or compress with SHF_COMPRESSED, | |
3252 | convert section name from .zdebug_* to .debug_* if | |
3253 | needed. */ | |
3254 | if (name[1] == 'z') | |
3255 | { | |
3256 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3257 | if (new_name == NULL) | |
3258 | { | |
3259 | arg->failed = TRUE; | |
3260 | return; | |
3261 | } | |
3262 | name = new_name; | |
3263 | } | |
3264 | } | |
3265 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3266 | { |
f6fe1ccd L |
3267 | /* PR binutils/18087: Compression does not always make a |
3268 | section smaller. So only rename the section when | |
3269 | compression has actually taken place. If input section | |
3270 | name is .zdebug_*, we should never compress it again. */ | |
3271 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3272 | if (new_name == NULL) |
3273 | { | |
3274 | arg->failed = TRUE; | |
3275 | return; | |
3276 | } | |
f6fe1ccd L |
3277 | BFD_ASSERT (name[1] != 'z'); |
3278 | name = new_name; | |
0ce398f1 L |
3279 | } |
3280 | } | |
3281 | ||
3e19fb8f L |
3282 | if (delay_st_name_p) |
3283 | this_hdr->sh_name = (unsigned int) -1; | |
3284 | else | |
252b5132 | 3285 | { |
3e19fb8f L |
3286 | this_hdr->sh_name |
3287 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3288 | name, FALSE); | |
3289 | if (this_hdr->sh_name == (unsigned int) -1) | |
3290 | { | |
3291 | arg->failed = TRUE; | |
3292 | return; | |
3293 | } | |
252b5132 RH |
3294 | } |
3295 | ||
a4d8e49b | 3296 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3297 | |
3298 | if ((asect->flags & SEC_ALLOC) != 0 | |
3299 | || asect->user_set_vma) | |
502794d4 | 3300 | this_hdr->sh_addr = asect->vma * bfd_octets_per_byte (abfd, asect); |
252b5132 RH |
3301 | else |
3302 | this_hdr->sh_addr = 0; | |
3303 | ||
3304 | this_hdr->sh_offset = 0; | |
eea6121a | 3305 | this_hdr->sh_size = asect->size; |
252b5132 | 3306 | this_hdr->sh_link = 0; |
c86934ce NC |
3307 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3308 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3309 | { | |
4eca0228 | 3310 | _bfd_error_handler |
695344c0 | 3311 | /* xgettext:c-format */ |
9793eb77 | 3312 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3313 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3314 | arg->failed = TRUE; |
3315 | return; | |
3316 | } | |
233bf4f8 AM |
3317 | /* Set sh_addralign to the highest power of two given by alignment |
3318 | consistent with the section VMA. Linker scripts can force VMA. */ | |
3319 | mask = ((bfd_vma) 1 << asect->alignment_power) | this_hdr->sh_addr; | |
3320 | this_hdr->sh_addralign = mask & -mask; | |
252b5132 RH |
3321 | /* The sh_entsize and sh_info fields may have been set already by |
3322 | copy_private_section_data. */ | |
3323 | ||
3324 | this_hdr->bfd_section = asect; | |
3325 | this_hdr->contents = NULL; | |
3326 | ||
3cddba1e L |
3327 | /* If the section type is unspecified, we set it based on |
3328 | asect->flags. */ | |
98ece1b3 AM |
3329 | if ((asect->flags & SEC_GROUP) != 0) |
3330 | sh_type = SHT_GROUP; | |
98ece1b3 | 3331 | else |
94be91de | 3332 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3333 | |
3cddba1e | 3334 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3335 | this_hdr->sh_type = sh_type; |
3336 | else if (this_hdr->sh_type == SHT_NOBITS | |
3337 | && sh_type == SHT_PROGBITS | |
3338 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3339 | { |
98ece1b3 AM |
3340 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3341 | allow the link to proceed. This can happen when users link | |
3342 | non-bss input sections to bss output sections, or emit data | |
3343 | to a bss output section via a linker script. */ | |
4eca0228 | 3344 | _bfd_error_handler |
871b3ab2 | 3345 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3346 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3347 | } |
3348 | ||
2f89ff8d | 3349 | switch (this_hdr->sh_type) |
252b5132 | 3350 | { |
2f89ff8d | 3351 | default: |
2f89ff8d L |
3352 | break; |
3353 | ||
3354 | case SHT_STRTAB: | |
2f89ff8d L |
3355 | case SHT_NOTE: |
3356 | case SHT_NOBITS: | |
3357 | case SHT_PROGBITS: | |
3358 | break; | |
606851fb AM |
3359 | |
3360 | case SHT_INIT_ARRAY: | |
3361 | case SHT_FINI_ARRAY: | |
3362 | case SHT_PREINIT_ARRAY: | |
3363 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3364 | break; | |
2f89ff8d L |
3365 | |
3366 | case SHT_HASH: | |
c7ac6ff8 | 3367 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3368 | break; |
5de3bf90 | 3369 | |
2f89ff8d | 3370 | case SHT_DYNSYM: |
252b5132 | 3371 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3372 | break; |
3373 | ||
3374 | case SHT_DYNAMIC: | |
252b5132 | 3375 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3376 | break; |
3377 | ||
3378 | case SHT_RELA: | |
3379 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3380 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3381 | break; | |
3382 | ||
3383 | case SHT_REL: | |
3384 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3385 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3386 | break; | |
3387 | ||
3388 | case SHT_GNU_versym: | |
252b5132 | 3389 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3390 | break; |
3391 | ||
3392 | case SHT_GNU_verdef: | |
252b5132 RH |
3393 | this_hdr->sh_entsize = 0; |
3394 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3395 | cverdefs. The linker will set cverdefs, but sh_info will be |
3396 | zero. */ | |
252b5132 RH |
3397 | if (this_hdr->sh_info == 0) |
3398 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3399 | else | |
3400 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3401 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3402 | break; |
3403 | ||
3404 | case SHT_GNU_verneed: | |
252b5132 RH |
3405 | this_hdr->sh_entsize = 0; |
3406 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3407 | cverrefs. The linker will set cverrefs, but sh_info will be |
3408 | zero. */ | |
252b5132 RH |
3409 | if (this_hdr->sh_info == 0) |
3410 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3411 | else | |
3412 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3413 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3414 | break; |
3415 | ||
3416 | case SHT_GROUP: | |
1783205a | 3417 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3418 | break; |
fdc90cb4 JJ |
3419 | |
3420 | case SHT_GNU_HASH: | |
3421 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3422 | break; | |
dbb410c3 | 3423 | } |
252b5132 RH |
3424 | |
3425 | if ((asect->flags & SEC_ALLOC) != 0) | |
3426 | this_hdr->sh_flags |= SHF_ALLOC; | |
3427 | if ((asect->flags & SEC_READONLY) == 0) | |
3428 | this_hdr->sh_flags |= SHF_WRITE; | |
3429 | if ((asect->flags & SEC_CODE) != 0) | |
3430 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3431 | if ((asect->flags & SEC_MERGE) != 0) |
3432 | { | |
3433 | this_hdr->sh_flags |= SHF_MERGE; | |
3434 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3435 | } |
84865015 NC |
3436 | if ((asect->flags & SEC_STRINGS) != 0) |
3437 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3438 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3439 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3440 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3441 | { |
3442 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3443 | if (asect->size == 0 |
3444 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3445 | { |
3a800eb9 | 3446 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3447 | |
704afa60 | 3448 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3449 | if (o != NULL) |
3450 | { | |
704afa60 | 3451 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3452 | if (this_hdr->sh_size != 0) |
3453 | this_hdr->sh_type = SHT_NOBITS; | |
3454 | } | |
704afa60 JJ |
3455 | } |
3456 | } | |
18ae9cc1 L |
3457 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3458 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3459 | |
d4730f92 BS |
3460 | /* If the section has relocs, set up a section header for the |
3461 | SHT_REL[A] section. If two relocation sections are required for | |
3462 | this section, it is up to the processor-specific back-end to | |
3463 | create the other. */ | |
3464 | if ((asect->flags & SEC_RELOC) != 0) | |
3465 | { | |
3466 | /* When doing a relocatable link, create both REL and RELA sections if | |
3467 | needed. */ | |
3468 | if (arg->link_info | |
3469 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3470 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3471 | && (bfd_link_relocatable (arg->link_info) |
3472 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3473 | { |
3474 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3475 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3476 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3477 | { |
3478 | arg->failed = TRUE; | |
3479 | return; | |
3480 | } | |
3481 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3482 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3483 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3484 | { |
3485 | arg->failed = TRUE; | |
3486 | return; | |
3487 | } | |
3488 | } | |
3489 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3490 | (asect->use_rela_p | |
3491 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3492 | name, |
3e19fb8f L |
3493 | asect->use_rela_p, |
3494 | delay_st_name_p)) | |
db4677b8 | 3495 | { |
d4730f92 | 3496 | arg->failed = TRUE; |
db4677b8 AM |
3497 | return; |
3498 | } | |
d4730f92 BS |
3499 | } |
3500 | ||
252b5132 | 3501 | /* Check for processor-specific section types. */ |
0414f35b | 3502 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3503 | if (bed->elf_backend_fake_sections |
3504 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3505 | { |
3506 | arg->failed = TRUE; | |
3507 | return; | |
3508 | } | |
252b5132 | 3509 | |
42bb2e33 | 3510 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3511 | { |
3512 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3513 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3514 | this_hdr->sh_type = sh_type; |
3515 | } | |
252b5132 RH |
3516 | } |
3517 | ||
bcacc0f5 AM |
3518 | /* Fill in the contents of a SHT_GROUP section. Called from |
3519 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3520 | when ELF targets use the generic linker, ld. Called for ld -r | |
3521 | from bfd_elf_final_link. */ | |
dbb410c3 | 3522 | |
1126897b | 3523 | void |
217aa764 | 3524 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3525 | { |
a50b1753 | 3526 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3527 | asection *elt, *first; |
dbb410c3 | 3528 | unsigned char *loc; |
b34976b6 | 3529 | bfd_boolean gas; |
dbb410c3 | 3530 | |
7e4111ad L |
3531 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3532 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3533 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3534 | || sec->size == 0 | |
dbb410c3 AM |
3535 | || *failedptr) |
3536 | return; | |
3537 | ||
bcacc0f5 AM |
3538 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3539 | { | |
3540 | unsigned long symindx = 0; | |
3541 | ||
3542 | /* elf_group_id will have been set up by objcopy and the | |
3543 | generic linker. */ | |
3544 | if (elf_group_id (sec) != NULL) | |
3545 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3546 | |
bcacc0f5 AM |
3547 | if (symindx == 0) |
3548 | { | |
3549 | /* If called from the assembler, swap_out_syms will have set up | |
6a541707 NC |
3550 | elf_section_syms. |
3551 | PR 25699: A corrupt input file could contain bogus group info. */ | |
3552 | if (elf_section_syms (abfd) == NULL) | |
3553 | { | |
3554 | *failedptr = TRUE; | |
3555 | return; | |
3556 | } | |
bcacc0f5 AM |
3557 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; |
3558 | } | |
3559 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3560 | } | |
3561 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3562 | { |
bcacc0f5 AM |
3563 | /* The ELF backend linker sets sh_info to -2 when the group |
3564 | signature symbol is global, and thus the index can't be | |
3565 | set until all local symbols are output. */ | |
53720c49 AM |
3566 | asection *igroup; |
3567 | struct bfd_elf_section_data *sec_data; | |
3568 | unsigned long symndx; | |
3569 | unsigned long extsymoff; | |
bcacc0f5 AM |
3570 | struct elf_link_hash_entry *h; |
3571 | ||
53720c49 AM |
3572 | /* The point of this little dance to the first SHF_GROUP section |
3573 | then back to the SHT_GROUP section is that this gets us to | |
3574 | the SHT_GROUP in the input object. */ | |
3575 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3576 | sec_data = elf_section_data (igroup); | |
3577 | symndx = sec_data->this_hdr.sh_info; | |
3578 | extsymoff = 0; | |
bcacc0f5 AM |
3579 | if (!elf_bad_symtab (igroup->owner)) |
3580 | { | |
3581 | Elf_Internal_Shdr *symtab_hdr; | |
3582 | ||
3583 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3584 | extsymoff = symtab_hdr->sh_info; | |
3585 | } | |
3586 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3587 | while (h->root.type == bfd_link_hash_indirect | |
3588 | || h->root.type == bfd_link_hash_warning) | |
3589 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3590 | ||
3591 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3592 | } |
dbb410c3 | 3593 | |
1126897b | 3594 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3595 | gas = TRUE; |
dbb410c3 AM |
3596 | if (sec->contents == NULL) |
3597 | { | |
b34976b6 | 3598 | gas = FALSE; |
a50b1753 | 3599 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3600 | |
3601 | /* Arrange for the section to be written out. */ | |
3602 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3603 | if (sec->contents == NULL) |
3604 | { | |
b34976b6 | 3605 | *failedptr = TRUE; |
dbb410c3 AM |
3606 | return; |
3607 | } | |
3608 | } | |
3609 | ||
eea6121a | 3610 | loc = sec->contents + sec->size; |
dbb410c3 | 3611 | |
9dce4196 AM |
3612 | /* Get the pointer to the first section in the group that gas |
3613 | squirreled away here. objcopy arranges for this to be set to the | |
3614 | start of the input section group. */ | |
3615 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3616 | |
3617 | /* First element is a flag word. Rest of section is elf section | |
3618 | indices for all the sections of the group. Write them backwards | |
3619 | just to keep the group in the same order as given in .section | |
3620 | directives, not that it matters. */ | |
3621 | while (elt != NULL) | |
3622 | { | |
9dce4196 | 3623 | asection *s; |
9dce4196 | 3624 | |
9dce4196 | 3625 | s = elt; |
415f38a6 AM |
3626 | if (!gas) |
3627 | s = s->output_section; | |
3628 | if (s != NULL | |
3629 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3630 | { |
db4677b8 | 3631 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3632 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3633 | ||
3634 | if (elf_sec->rel.hdr != NULL | |
3635 | && (gas | |
3636 | || (input_elf_sec->rel.hdr != NULL | |
3637 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3638 | { |
28e07a05 | 3639 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3640 | loc -= 4; |
3641 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3642 | } | |
28e07a05 AM |
3643 | if (elf_sec->rela.hdr != NULL |
3644 | && (gas | |
3645 | || (input_elf_sec->rela.hdr != NULL | |
3646 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3647 | { |
28e07a05 | 3648 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3649 | loc -= 4; |
3650 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3651 | } | |
01e1a5bc | 3652 | loc -= 4; |
db4677b8 | 3653 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3654 | } |
945906ff | 3655 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3656 | if (elt == first) |
3657 | break; | |
dbb410c3 AM |
3658 | } |
3659 | ||
7bdf4127 AB |
3660 | loc -= 4; |
3661 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3662 | |
9dce4196 | 3663 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3664 | } |
3665 | ||
bce964aa AM |
3666 | /* Given NAME, the name of a relocation section stripped of its |
3667 | .rel/.rela prefix, return the section in ABFD to which the | |
3668 | relocations apply. */ | |
bd53a53a L |
3669 | |
3670 | asection * | |
bce964aa AM |
3671 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3672 | { | |
3673 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3674 | section likely apply to .got.plt or .got section. */ | |
3675 | if (get_elf_backend_data (abfd)->want_got_plt | |
3676 | && strcmp (name, ".plt") == 0) | |
3677 | { | |
3678 | asection *sec; | |
3679 | ||
3680 | name = ".got.plt"; | |
3681 | sec = bfd_get_section_by_name (abfd, name); | |
3682 | if (sec != NULL) | |
3683 | return sec; | |
3684 | name = ".got"; | |
3685 | } | |
3686 | ||
3687 | return bfd_get_section_by_name (abfd, name); | |
3688 | } | |
3689 | ||
3690 | /* Return the section to which RELOC_SEC applies. */ | |
3691 | ||
3692 | static asection * | |
3693 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3694 | { |
3695 | const char *name; | |
3696 | unsigned int type; | |
3697 | bfd *abfd; | |
bce964aa | 3698 | const struct elf_backend_data *bed; |
bd53a53a L |
3699 | |
3700 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3701 | if (type != SHT_REL && type != SHT_RELA) | |
3702 | return NULL; | |
3703 | ||
3704 | /* We look up the section the relocs apply to by name. */ | |
3705 | name = reloc_sec->name; | |
bce964aa AM |
3706 | if (strncmp (name, ".rel", 4) != 0) |
3707 | return NULL; | |
3708 | name += 4; | |
3709 | if (type == SHT_RELA && *name++ != 'a') | |
3710 | return NULL; | |
bd53a53a | 3711 | |
bd53a53a | 3712 | abfd = reloc_sec->owner; |
bce964aa AM |
3713 | bed = get_elf_backend_data (abfd); |
3714 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3715 | } |
3716 | ||
252b5132 RH |
3717 | /* Assign all ELF section numbers. The dummy first section is handled here |
3718 | too. The link/info pointers for the standard section types are filled | |
3719 | in here too, while we're at it. */ | |
3720 | ||
b34976b6 | 3721 | static bfd_boolean |
da9f89d4 | 3722 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3723 | { |
3724 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3725 | asection *sec; | |
3e19fb8f | 3726 | unsigned int section_number; |
252b5132 | 3727 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3728 | struct bfd_elf_section_data *d; |
3516e984 | 3729 | bfd_boolean need_symtab; |
446f7ed5 | 3730 | size_t amt; |
252b5132 RH |
3731 | |
3732 | section_number = 1; | |
3733 | ||
2b0f7ef9 JJ |
3734 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3735 | ||
da9f89d4 | 3736 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3737 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3738 | { |
ef53be89 | 3739 | size_t reloc_count = 0; |
14f2c699 | 3740 | |
da9f89d4 | 3741 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3742 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3743 | { |
5daa8fe7 | 3744 | d = elf_section_data (sec); |
da9f89d4 L |
3745 | |
3746 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3747 | { |
5daa8fe7 | 3748 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3749 | { |
3750 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3751 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3752 | abfd->section_count--; |
da9f89d4 | 3753 | } |
08a40648 | 3754 | else |
4fbb74a6 | 3755 | d->this_idx = section_number++; |
da9f89d4 | 3756 | } |
14f2c699 L |
3757 | |
3758 | /* Count relocations. */ | |
3759 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3760 | } |
14f2c699 L |
3761 | |
3762 | /* Clear HAS_RELOC if there are no relocations. */ | |
3763 | if (reloc_count == 0) | |
3764 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3765 | } |
3766 | ||
3767 | for (sec = abfd->sections; sec; sec = sec->next) | |
3768 | { | |
3769 | d = elf_section_data (sec); | |
3770 | ||
3771 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3772 | d->this_idx = section_number++; |
3e19fb8f L |
3773 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3774 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3775 | if (d->rel.hdr) |
2b0f7ef9 | 3776 | { |
d4730f92 | 3777 | d->rel.idx = section_number++; |
3e19fb8f L |
3778 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3779 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3780 | } |
d4730f92 BS |
3781 | else |
3782 | d->rel.idx = 0; | |
23bc299b | 3783 | |
d4730f92 | 3784 | if (d->rela.hdr) |
2b0f7ef9 | 3785 | { |
d4730f92 | 3786 | d->rela.idx = section_number++; |
3e19fb8f L |
3787 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3788 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3789 | } |
23bc299b | 3790 | else |
d4730f92 | 3791 | d->rela.idx = 0; |
252b5132 RH |
3792 | } |
3793 | ||
3516e984 L |
3794 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3795 | || (link_info == NULL | |
3796 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3797 | == HAS_RELOC))); | |
3798 | if (need_symtab) | |
252b5132 | 3799 | { |
12bd6957 | 3800 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3801 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3802 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3803 | { |
7a6e0d89 | 3804 | elf_section_list *entry; |
6a40cf0c NC |
3805 | |
3806 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3807 | ||
7a6e0d89 | 3808 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3809 | entry->ndx = section_number++; |
3810 | elf_symtab_shndx_list (abfd) = entry; | |
3811 | entry->hdr.sh_name | |
9ad5cbcf | 3812 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3813 | ".symtab_shndx", FALSE); |
6a40cf0c | 3814 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3815 | return FALSE; |
9ad5cbcf | 3816 | } |
12bd6957 | 3817 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3818 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3819 | } |
3820 | ||
dd905818 NC |
3821 | elf_shstrtab_sec (abfd) = section_number++; |
3822 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3823 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3824 | ||
1c52a645 L |
3825 | if (section_number >= SHN_LORESERVE) |
3826 | { | |
695344c0 | 3827 | /* xgettext:c-format */ |
871b3ab2 | 3828 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3829 | abfd, section_number); |
3830 | return FALSE; | |
3831 | } | |
3832 | ||
9ad5cbcf | 3833 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3834 | elf_elfheader (abfd)->e_shnum = section_number; |
3835 | ||
3836 | /* Set up the list of section header pointers, in agreement with the | |
3837 | indices. */ | |
446f7ed5 AM |
3838 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
3839 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
252b5132 | 3840 | if (i_shdrp == NULL) |
b34976b6 | 3841 | return FALSE; |
252b5132 | 3842 | |
a50b1753 | 3843 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3844 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3845 | if (i_shdrp[0] == NULL) |
3846 | { | |
3847 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3848 | return FALSE; |
252b5132 | 3849 | } |
252b5132 RH |
3850 | |
3851 | elf_elfsections (abfd) = i_shdrp; | |
3852 | ||
12bd6957 | 3853 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3854 | if (need_symtab) |
252b5132 | 3855 | { |
12bd6957 | 3856 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3857 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3858 | { |
6a40cf0c NC |
3859 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3860 | BFD_ASSERT (entry != NULL); | |
3861 | i_shdrp[entry->ndx] = & entry->hdr; | |
3862 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3863 | } |
12bd6957 AM |
3864 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3865 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3866 | } |
38ce5b11 | 3867 | |
252b5132 RH |
3868 | for (sec = abfd->sections; sec; sec = sec->next) |
3869 | { | |
252b5132 | 3870 | asection *s; |
252b5132 | 3871 | |
91d6fa6a NC |
3872 | d = elf_section_data (sec); |
3873 | ||
252b5132 | 3874 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3875 | if (d->rel.idx != 0) |
3876 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3877 | if (d->rela.idx != 0) | |
3878 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3879 | |
3880 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3881 | ||
3882 | /* sh_link of a reloc section is the section index of the symbol | |
3883 | table. sh_info is the section index of the section to which | |
3884 | the relocation entries apply. */ | |
d4730f92 | 3885 | if (d->rel.idx != 0) |
252b5132 | 3886 | { |
12bd6957 | 3887 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3888 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3889 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3890 | } |
d4730f92 | 3891 | if (d->rela.idx != 0) |
23bc299b | 3892 | { |
12bd6957 | 3893 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3894 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3895 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3896 | } |
252b5132 | 3897 | |
38ce5b11 L |
3898 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3899 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3900 | { | |
3901 | s = elf_linked_to_section (sec); | |
3902 | if (s) | |
38ce5b11 | 3903 | { |
f2876037 | 3904 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3905 | if (link_info != NULL) |
38ce5b11 | 3906 | { |
f2876037 | 3907 | /* Check discarded linkonce section. */ |
dbaa2011 | 3908 | if (discarded_section (s)) |
38ce5b11 | 3909 | { |
ccd2ec6a | 3910 | asection *kept; |
4eca0228 | 3911 | _bfd_error_handler |
695344c0 | 3912 | /* xgettext:c-format */ |
871b3ab2 AM |
3913 | (_("%pB: sh_link of section `%pA' points to" |
3914 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3915 | abfd, d->this_hdr.bfd_section, |
3916 | s, s->owner); | |
3917 | /* Point to the kept section if it has the same | |
3918 | size as the discarded one. */ | |
c0f00686 | 3919 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3920 | if (kept == NULL) |
185d09ad | 3921 | { |
ccd2ec6a L |
3922 | bfd_set_error (bfd_error_bad_value); |
3923 | return FALSE; | |
185d09ad | 3924 | } |
ccd2ec6a | 3925 | s = kept; |
38ce5b11 | 3926 | } |
e424ecc8 | 3927 | |
ccd2ec6a L |
3928 | s = s->output_section; |
3929 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3930 | } |
f2876037 L |
3931 | else |
3932 | { | |
3933 | /* Handle objcopy. */ | |
3934 | if (s->output_section == NULL) | |
3935 | { | |
4eca0228 | 3936 | _bfd_error_handler |
695344c0 | 3937 | /* xgettext:c-format */ |
871b3ab2 AM |
3938 | (_("%pB: sh_link of section `%pA' points to" |
3939 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3940 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3941 | bfd_set_error (bfd_error_bad_value); | |
3942 | return FALSE; | |
3943 | } | |
3944 | s = s->output_section; | |
3945 | } | |
ccd2ec6a L |
3946 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3947 | } | |
3948 | else | |
3949 | { | |
3950 | /* PR 290: | |
3951 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3952 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3953 | sh_info fields. Hence we could get the situation | |
08a40648 | 3954 | where s is NULL. */ |
ccd2ec6a L |
3955 | const struct elf_backend_data *bed |
3956 | = get_elf_backend_data (abfd); | |
a859124d AM |
3957 | bed->link_order_error_handler |
3958 | /* xgettext:c-format */ | |
3959 | (_("%pB: warning: sh_link not set for section `%pA'"), | |
3960 | abfd, sec); | |
38ce5b11 L |
3961 | } |
3962 | } | |
3963 | ||
252b5132 RH |
3964 | switch (d->this_hdr.sh_type) |
3965 | { | |
3966 | case SHT_REL: | |
3967 | case SHT_RELA: | |
3968 | /* A reloc section which we are treating as a normal BFD | |
3969 | section. sh_link is the section index of the symbol | |
3970 | table. sh_info is the section index of the section to | |
3971 | which the relocation entries apply. We assume that an | |
3972 | allocated reloc section uses the dynamic symbol table. | |
3973 | FIXME: How can we be sure? */ | |
3974 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3975 | if (s != NULL) | |
3976 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3977 | ||
bce964aa | 3978 | s = elf_get_reloc_section (sec); |
252b5132 | 3979 | if (s != NULL) |
9ef5d938 L |
3980 | { |
3981 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3982 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3983 | } | |
252b5132 RH |
3984 | break; |
3985 | ||
3986 | case SHT_STRTAB: | |
3987 | /* We assume that a section named .stab*str is a stabs | |
3988 | string section. We look for a section with the same name | |
3989 | but without the trailing ``str'', and set its sh_link | |
3990 | field to point to this section. */ | |
0112cd26 | 3991 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3992 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3993 | { | |
3994 | size_t len; | |
3995 | char *alc; | |
3996 | ||
3997 | len = strlen (sec->name); | |
a50b1753 | 3998 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3999 | if (alc == NULL) |
b34976b6 | 4000 | return FALSE; |
d4c88bbb | 4001 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
4002 | alc[len - 3] = '\0'; |
4003 | s = bfd_get_section_by_name (abfd, alc); | |
4004 | free (alc); | |
4005 | if (s != NULL) | |
4006 | { | |
4007 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
4008 | ||
4009 | /* This is a .stab section. */ | |
34ca5531 | 4010 | elf_section_data (s)->this_hdr.sh_entsize = 12; |
252b5132 RH |
4011 | } |
4012 | } | |
4013 | break; | |
4014 | ||
4015 | case SHT_DYNAMIC: | |
4016 | case SHT_DYNSYM: | |
4017 | case SHT_GNU_verneed: | |
4018 | case SHT_GNU_verdef: | |
4019 | /* sh_link is the section header index of the string table | |
4020 | used for the dynamic entries, or the symbol table, or the | |
4021 | version strings. */ | |
4022 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
4023 | if (s != NULL) | |
4024 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4025 | break; | |
4026 | ||
7f1204bb JJ |
4027 | case SHT_GNU_LIBLIST: |
4028 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
4029 | list used for the dynamic entries, or the symbol table, or |
4030 | the version strings. */ | |
7f1204bb JJ |
4031 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
4032 | ? ".dynstr" : ".gnu.libstr"); | |
4033 | if (s != NULL) | |
4034 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4035 | break; | |
4036 | ||
252b5132 | 4037 | case SHT_HASH: |
fdc90cb4 | 4038 | case SHT_GNU_HASH: |
252b5132 RH |
4039 | case SHT_GNU_versym: |
4040 | /* sh_link is the section header index of the symbol table | |
4041 | this hash table or version table is for. */ | |
4042 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4043 | if (s != NULL) | |
4044 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4045 | break; | |
dbb410c3 AM |
4046 | |
4047 | case SHT_GROUP: | |
12bd6957 | 4048 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4049 | } |
4050 | } | |
4051 | ||
3e19fb8f L |
4052 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4053 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4054 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4055 | ||
b34976b6 | 4056 | return TRUE; |
252b5132 RH |
4057 | } |
4058 | ||
5372391b | 4059 | static bfd_boolean |
217aa764 | 4060 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4061 | { |
4062 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4063 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4064 | if (bed->elf_backend_sym_is_global) |
4065 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4066 | |
e47bf690 | 4067 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4068 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4069 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4070 | } |
4071 | ||
76359541 TP |
4072 | /* Filter global symbols of ABFD to include in the import library. All |
4073 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4074 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4075 | the beginning of that array. | |
4076 | ||
4077 | Returns the number of symbols to keep. */ | |
4078 | ||
4079 | unsigned int | |
4080 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4081 | asymbol **syms, long symcount) | |
4082 | { | |
4083 | long src_count, dst_count = 0; | |
4084 | ||
4085 | for (src_count = 0; src_count < symcount; src_count++) | |
4086 | { | |
4087 | asymbol *sym = syms[src_count]; | |
4088 | char *name = (char *) bfd_asymbol_name (sym); | |
4089 | struct bfd_link_hash_entry *h; | |
4090 | ||
4091 | if (!sym_is_global (abfd, sym)) | |
4092 | continue; | |
4093 | ||
4094 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4095 | if (h == NULL) |
4096 | continue; | |
76359541 TP |
4097 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4098 | continue; | |
76359541 TP |
4099 | if (h->linker_def || h->ldscript_def) |
4100 | continue; | |
4101 | ||
4102 | syms[dst_count++] = sym; | |
4103 | } | |
4104 | ||
4105 | syms[dst_count] = NULL; | |
4106 | ||
4107 | return dst_count; | |
4108 | } | |
4109 | ||
5372391b | 4110 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4111 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4112 | |
4113 | static bfd_boolean | |
4114 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4115 | { | |
c6d8cab4 L |
4116 | elf_symbol_type *type_ptr; |
4117 | ||
db0c309f NC |
4118 | if (sym == NULL) |
4119 | return FALSE; | |
4120 | ||
c6d8cab4 L |
4121 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4122 | return FALSE; | |
4123 | ||
db0c309f NC |
4124 | if (sym->section == NULL) |
4125 | return TRUE; | |
4126 | ||
c6d8cab4 L |
4127 | type_ptr = elf_symbol_from (abfd, sym); |
4128 | return ((type_ptr != NULL | |
4129 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4130 | && bfd_is_abs_section (sym->section)) | |
4131 | || !(sym->section->owner == abfd | |
db0c309f NC |
4132 | || (sym->section->output_section != NULL |
4133 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4134 | && sym->section->output_offset == 0) |
4135 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4136 | } |
4137 | ||
2633a79c AM |
4138 | /* Map symbol from it's internal number to the external number, moving |
4139 | all local symbols to be at the head of the list. */ | |
4140 | ||
b34976b6 | 4141 | static bfd_boolean |
12bd6957 | 4142 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4143 | { |
dc810e39 | 4144 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4145 | asymbol **syms = bfd_get_outsymbols (abfd); |
4146 | asymbol **sect_syms; | |
dc810e39 AM |
4147 | unsigned int num_locals = 0; |
4148 | unsigned int num_globals = 0; | |
4149 | unsigned int num_locals2 = 0; | |
4150 | unsigned int num_globals2 = 0; | |
7292b3ac | 4151 | unsigned int max_index = 0; |
dc810e39 | 4152 | unsigned int idx; |
252b5132 RH |
4153 | asection *asect; |
4154 | asymbol **new_syms; | |
446f7ed5 | 4155 | size_t amt; |
252b5132 RH |
4156 | |
4157 | #ifdef DEBUG | |
4158 | fprintf (stderr, "elf_map_symbols\n"); | |
4159 | fflush (stderr); | |
4160 | #endif | |
4161 | ||
252b5132 RH |
4162 | for (asect = abfd->sections; asect; asect = asect->next) |
4163 | { | |
4164 | if (max_index < asect->index) | |
4165 | max_index = asect->index; | |
4166 | } | |
4167 | ||
4168 | max_index++; | |
446f7ed5 AM |
4169 | amt = max_index * sizeof (asymbol *); |
4170 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 | 4171 | if (sect_syms == NULL) |
b34976b6 | 4172 | return FALSE; |
252b5132 | 4173 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4174 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4175 | |
079e9a2f AM |
4176 | /* Init sect_syms entries for any section symbols we have already |
4177 | decided to output. */ | |
252b5132 RH |
4178 | for (idx = 0; idx < symcount; idx++) |
4179 | { | |
dc810e39 | 4180 | asymbol *sym = syms[idx]; |
c044fabd | 4181 | |
252b5132 | 4182 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4183 | && sym->value == 0 |
2633a79c AM |
4184 | && !ignore_section_sym (abfd, sym) |
4185 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4186 | { |
5372391b | 4187 | asection *sec = sym->section; |
252b5132 | 4188 | |
5372391b AM |
4189 | if (sec->owner != abfd) |
4190 | sec = sec->output_section; | |
252b5132 | 4191 | |
5372391b | 4192 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4193 | } |
4194 | } | |
4195 | ||
252b5132 RH |
4196 | /* Classify all of the symbols. */ |
4197 | for (idx = 0; idx < symcount; idx++) | |
4198 | { | |
2633a79c | 4199 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4200 | num_globals++; |
2633a79c AM |
4201 | else if (!ignore_section_sym (abfd, syms[idx])) |
4202 | num_locals++; | |
252b5132 | 4203 | } |
079e9a2f | 4204 | |
5372391b | 4205 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4206 | sections will already have a section symbol in outsymbols, but |
4207 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4208 | at least in that case. */ | |
252b5132 RH |
4209 | for (asect = abfd->sections; asect; asect = asect->next) |
4210 | { | |
079e9a2f | 4211 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4212 | { |
079e9a2f | 4213 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4214 | num_locals++; |
4215 | else | |
4216 | num_globals++; | |
252b5132 RH |
4217 | } |
4218 | } | |
4219 | ||
4220 | /* Now sort the symbols so the local symbols are first. */ | |
446f7ed5 AM |
4221 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
4222 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 | 4223 | if (new_syms == NULL) |
b34976b6 | 4224 | return FALSE; |
252b5132 RH |
4225 | |
4226 | for (idx = 0; idx < symcount; idx++) | |
4227 | { | |
4228 | asymbol *sym = syms[idx]; | |
dc810e39 | 4229 | unsigned int i; |
252b5132 | 4230 | |
2633a79c AM |
4231 | if (sym_is_global (abfd, sym)) |
4232 | i = num_locals + num_globals2++; | |
4233 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4234 | i = num_locals2++; |
4235 | else | |
2633a79c | 4236 | continue; |
252b5132 RH |
4237 | new_syms[i] = sym; |
4238 | sym->udata.i = i + 1; | |
4239 | } | |
4240 | for (asect = abfd->sections; asect; asect = asect->next) | |
4241 | { | |
079e9a2f | 4242 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4243 | { |
079e9a2f | 4244 | asymbol *sym = asect->symbol; |
dc810e39 | 4245 | unsigned int i; |
252b5132 | 4246 | |
079e9a2f | 4247 | sect_syms[asect->index] = sym; |
252b5132 RH |
4248 | if (!sym_is_global (abfd, sym)) |
4249 | i = num_locals2++; | |
4250 | else | |
4251 | i = num_locals + num_globals2++; | |
4252 | new_syms[i] = sym; | |
4253 | sym->udata.i = i + 1; | |
4254 | } | |
4255 | } | |
4256 | ||
4257 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4258 | ||
12bd6957 | 4259 | *pnum_locals = num_locals; |
b34976b6 | 4260 | return TRUE; |
252b5132 RH |
4261 | } |
4262 | ||
4263 | /* Align to the maximum file alignment that could be required for any | |
4264 | ELF data structure. */ | |
4265 | ||
268b6b39 | 4266 | static inline file_ptr |
217aa764 | 4267 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4268 | { |
4269 | return (off + align - 1) & ~(align - 1); | |
4270 | } | |
4271 | ||
4272 | /* Assign a file position to a section, optionally aligning to the | |
4273 | required section alignment. */ | |
4274 | ||
217aa764 AM |
4275 | file_ptr |
4276 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4277 | file_ptr offset, | |
4278 | bfd_boolean align) | |
252b5132 | 4279 | { |
72de5009 AM |
4280 | if (align && i_shdrp->sh_addralign > 1) |
4281 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4282 | i_shdrp->sh_offset = offset; |
4283 | if (i_shdrp->bfd_section != NULL) | |
4284 | i_shdrp->bfd_section->filepos = offset; | |
4285 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4286 | offset += i_shdrp->sh_size; | |
4287 | return offset; | |
4288 | } | |
4289 | ||
4290 | /* Compute the file positions we are going to put the sections at, and | |
4291 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4292 | is not NULL, this is being called by the ELF backend linker. */ | |
4293 | ||
b34976b6 | 4294 | bfd_boolean |
217aa764 AM |
4295 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4296 | struct bfd_link_info *link_info) | |
252b5132 | 4297 | { |
9c5bfbb7 | 4298 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4299 | struct fake_section_arg fsargs; |
b34976b6 | 4300 | bfd_boolean failed; |
ef10c3ac | 4301 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4302 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4303 | bfd_boolean need_symtab; |
252b5132 RH |
4304 | |
4305 | if (abfd->output_has_begun) | |
b34976b6 | 4306 | return TRUE; |
252b5132 RH |
4307 | |
4308 | /* Do any elf backend specific processing first. */ | |
4309 | if (bed->elf_backend_begin_write_processing) | |
4310 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4311 | ||
ed7e9d0b | 4312 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
b34976b6 | 4313 | return FALSE; |
252b5132 | 4314 | |
d4730f92 BS |
4315 | fsargs.failed = FALSE; |
4316 | fsargs.link_info = link_info; | |
4317 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4318 | if (fsargs.failed) | |
b34976b6 | 4319 | return FALSE; |
252b5132 | 4320 | |
da9f89d4 | 4321 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4322 | return FALSE; |
252b5132 RH |
4323 | |
4324 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4325 | need_symtab = (link_info == NULL |
4326 | && (bfd_get_symcount (abfd) > 0 | |
4327 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4328 | == HAS_RELOC))); | |
4329 | if (need_symtab) | |
252b5132 RH |
4330 | { |
4331 | /* Non-zero if doing a relocatable link. */ | |
4332 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4333 | ||
4334 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4335 | return FALSE; |
252b5132 RH |
4336 | } |
4337 | ||
d4730f92 | 4338 | failed = FALSE; |
1126897b | 4339 | if (link_info == NULL) |
dbb410c3 | 4340 | { |
1126897b | 4341 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4342 | if (failed) |
b34976b6 | 4343 | return FALSE; |
dbb410c3 AM |
4344 | } |
4345 | ||
252b5132 | 4346 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4347 | /* sh_name was set in init_file_header. */ |
252b5132 | 4348 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4349 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4350 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4351 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4352 | shstrtab_hdr->sh_entsize = 0; |
4353 | shstrtab_hdr->sh_link = 0; | |
4354 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4355 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4356 | shstrtab_hdr->sh_addralign = 1; |
4357 | ||
c84fca4d | 4358 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4359 | return FALSE; |
252b5132 | 4360 | |
3516e984 | 4361 | if (need_symtab) |
252b5132 RH |
4362 | { |
4363 | file_ptr off; | |
4364 | Elf_Internal_Shdr *hdr; | |
4365 | ||
12bd6957 | 4366 | off = elf_next_file_pos (abfd); |
252b5132 | 4367 | |
6a40cf0c | 4368 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4369 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4370 | |
6a40cf0c NC |
4371 | if (elf_symtab_shndx_list (abfd) != NULL) |
4372 | { | |
4373 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4374 | if (hdr->sh_size != 0) | |
4375 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4376 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4377 | } | |
9ad5cbcf | 4378 | |
252b5132 | 4379 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4380 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4381 | |
12bd6957 | 4382 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4383 | |
4384 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4385 | out. */ |
252b5132 | 4386 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4387 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4388 | return FALSE; |
ef10c3ac | 4389 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4390 | } |
4391 | ||
b34976b6 | 4392 | abfd->output_has_begun = TRUE; |
252b5132 | 4393 | |
b34976b6 | 4394 | return TRUE; |
252b5132 RH |
4395 | } |
4396 | ||
8ded5a0f AM |
4397 | /* Make an initial estimate of the size of the program header. If we |
4398 | get the number wrong here, we'll redo section placement. */ | |
4399 | ||
4400 | static bfd_size_type | |
4401 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4402 | { | |
4403 | size_t segs; | |
4404 | asection *s; | |
2b05f1b7 | 4405 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4406 | |
4407 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4408 | and one for data. */ | |
4409 | segs = 2; | |
4410 | ||
4411 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4412 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4413 | { |
4414 | /* If we have a loadable interpreter section, we need a | |
4415 | PT_INTERP segment. In this case, assume we also need a | |
4416 | PT_PHDR segment, although that may not be true for all | |
4417 | targets. */ | |
e9a38e0f | 4418 | segs += 2; |
8ded5a0f AM |
4419 | } |
4420 | ||
4421 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4422 | { | |
4423 | /* We need a PT_DYNAMIC segment. */ | |
4424 | ++segs; | |
f210dcff | 4425 | } |
08a40648 | 4426 | |
ceae84aa | 4427 | if (info != NULL && info->relro) |
f210dcff L |
4428 | { |
4429 | /* We need a PT_GNU_RELRO segment. */ | |
4430 | ++segs; | |
8ded5a0f AM |
4431 | } |
4432 | ||
12bd6957 | 4433 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4434 | { |
4435 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4436 | ++segs; | |
4437 | } | |
4438 | ||
12bd6957 | 4439 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4440 | { |
2b05f1b7 L |
4441 | /* We need a PT_GNU_STACK segment. */ |
4442 | ++segs; | |
4443 | } | |
94b11780 | 4444 | |
0a59decb L |
4445 | s = bfd_get_section_by_name (abfd, |
4446 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4447 | if (s != NULL && s->size != 0) | |
4448 | { | |
4449 | /* We need a PT_GNU_PROPERTY segment. */ | |
4450 | ++segs; | |
4451 | } | |
4452 | ||
2b05f1b7 L |
4453 | for (s = abfd->sections; s != NULL; s = s->next) |
4454 | { | |
8ded5a0f | 4455 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4456 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4457 | { |
23e463ed | 4458 | unsigned int alignment_power; |
8ded5a0f AM |
4459 | /* We need a PT_NOTE segment. */ |
4460 | ++segs; | |
23e463ed L |
4461 | /* Try to create just one PT_NOTE segment for all adjacent |
4462 | loadable SHT_NOTE sections. gABI requires that within a | |
4463 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4464 | each note should have the same alignment. So we check | |
4465 | whether the sections are correctly aligned. */ | |
4466 | alignment_power = s->alignment_power; | |
4467 | while (s->next != NULL | |
4468 | && s->next->alignment_power == alignment_power | |
4469 | && (s->next->flags & SEC_LOAD) != 0 | |
4470 | && elf_section_type (s->next) == SHT_NOTE) | |
4471 | s = s->next; | |
8ded5a0f AM |
4472 | } |
4473 | } | |
4474 | ||
4475 | for (s = abfd->sections; s != NULL; s = s->next) | |
4476 | { | |
4477 | if (s->flags & SEC_THREAD_LOCAL) | |
4478 | { | |
4479 | /* We need a PT_TLS segment. */ | |
4480 | ++segs; | |
4481 | break; | |
4482 | } | |
4483 | } | |
4484 | ||
2b05f1b7 | 4485 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4486 | |
df3a023b AM |
4487 | if ((abfd->flags & D_PAGED) != 0 |
4488 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4489 | { | |
4490 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4491 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4492 | for (s = abfd->sections; s != NULL; s = s->next) | |
4493 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4494 | { | |
4495 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4496 | { | |
4497 | _bfd_error_handler | |
4498 | /* xgettext:c-format */ | |
4499 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4500 | "sh_info field: %d"), | |
4501 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4502 | continue; | |
4503 | } | |
4504 | /* Align mbind section to page size. */ | |
4505 | if (s->alignment_power < page_align_power) | |
4506 | s->alignment_power = page_align_power; | |
4507 | segs ++; | |
4508 | } | |
4509 | } | |
4510 | ||
4511 | /* Let the backend count up any program headers it might need. */ | |
4512 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4513 | { |
4514 | int a; | |
4515 | ||
4516 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4517 | if (a == -1) | |
4518 | abort (); | |
4519 | segs += a; | |
4520 | } | |
4521 | ||
4522 | return segs * bed->s->sizeof_phdr; | |
4523 | } | |
4524 | ||
2ea37f1c NC |
4525 | /* Find the segment that contains the output_section of section. */ |
4526 | ||
4527 | Elf_Internal_Phdr * | |
4528 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4529 | { | |
4530 | struct elf_segment_map *m; | |
4531 | Elf_Internal_Phdr *p; | |
4532 | ||
12bd6957 | 4533 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4534 | m != NULL; |
4535 | m = m->next, p++) | |
4536 | { | |
4537 | int i; | |
4538 | ||
4539 | for (i = m->count - 1; i >= 0; i--) | |
4540 | if (m->sections[i] == section) | |
4541 | return p; | |
4542 | } | |
4543 | ||
4544 | return NULL; | |
4545 | } | |
4546 | ||
252b5132 RH |
4547 | /* Create a mapping from a set of sections to a program segment. */ |
4548 | ||
217aa764 AM |
4549 | static struct elf_segment_map * |
4550 | make_mapping (bfd *abfd, | |
4551 | asection **sections, | |
4552 | unsigned int from, | |
4553 | unsigned int to, | |
4554 | bfd_boolean phdr) | |
252b5132 RH |
4555 | { |
4556 | struct elf_segment_map *m; | |
4557 | unsigned int i; | |
4558 | asection **hdrpp; | |
986f0783 | 4559 | size_t amt; |
252b5132 | 4560 | |
00bee008 AM |
4561 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4562 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4563 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4564 | if (m == NULL) |
4565 | return NULL; | |
4566 | m->next = NULL; | |
4567 | m->p_type = PT_LOAD; | |
4568 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4569 | m->sections[i - from] = *hdrpp; | |
4570 | m->count = to - from; | |
4571 | ||
4572 | if (from == 0 && phdr) | |
4573 | { | |
4574 | /* Include the headers in the first PT_LOAD segment. */ | |
4575 | m->includes_filehdr = 1; | |
4576 | m->includes_phdrs = 1; | |
4577 | } | |
4578 | ||
4579 | return m; | |
4580 | } | |
4581 | ||
229fcec5 MM |
4582 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4583 | on failure. */ | |
4584 | ||
4585 | struct elf_segment_map * | |
4586 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4587 | { | |
4588 | struct elf_segment_map *m; | |
4589 | ||
a50b1753 | 4590 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4591 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4592 | if (m == NULL) |
4593 | return NULL; | |
4594 | m->next = NULL; | |
4595 | m->p_type = PT_DYNAMIC; | |
4596 | m->count = 1; | |
4597 | m->sections[0] = dynsec; | |
08a40648 | 4598 | |
229fcec5 MM |
4599 | return m; |
4600 | } | |
4601 | ||
8ded5a0f | 4602 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4603 | |
b34976b6 | 4604 | static bfd_boolean |
3dea8fca AM |
4605 | elf_modify_segment_map (bfd *abfd, |
4606 | struct bfd_link_info *info, | |
4607 | bfd_boolean remove_empty_load) | |
252b5132 | 4608 | { |
252e386e | 4609 | struct elf_segment_map **m; |
8ded5a0f | 4610 | const struct elf_backend_data *bed; |
252b5132 | 4611 | |
8ded5a0f AM |
4612 | /* The placement algorithm assumes that non allocated sections are |
4613 | not in PT_LOAD segments. We ensure this here by removing such | |
4614 | sections from the segment map. We also remove excluded | |
252e386e AM |
4615 | sections. Finally, any PT_LOAD segment without sections is |
4616 | removed. */ | |
12bd6957 | 4617 | m = &elf_seg_map (abfd); |
252e386e | 4618 | while (*m) |
8ded5a0f AM |
4619 | { |
4620 | unsigned int i, new_count; | |
252b5132 | 4621 | |
252e386e | 4622 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4623 | { |
252e386e AM |
4624 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4625 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4626 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4627 | { |
252e386e AM |
4628 | (*m)->sections[new_count] = (*m)->sections[i]; |
4629 | new_count++; | |
8ded5a0f AM |
4630 | } |
4631 | } | |
252e386e | 4632 | (*m)->count = new_count; |
252b5132 | 4633 | |
1a9ccd70 NC |
4634 | if (remove_empty_load |
4635 | && (*m)->p_type == PT_LOAD | |
4636 | && (*m)->count == 0 | |
4637 | && !(*m)->includes_phdrs) | |
252e386e AM |
4638 | *m = (*m)->next; |
4639 | else | |
4640 | m = &(*m)->next; | |
8ded5a0f | 4641 | } |
252b5132 | 4642 | |
8ded5a0f AM |
4643 | bed = get_elf_backend_data (abfd); |
4644 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4645 | { |
252e386e | 4646 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4647 | return FALSE; |
252b5132 | 4648 | } |
252b5132 | 4649 | |
8ded5a0f AM |
4650 | return TRUE; |
4651 | } | |
252b5132 | 4652 | |
dbc88fc1 AM |
4653 | #define IS_TBSS(s) \ |
4654 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4655 | ||
8ded5a0f | 4656 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4657 | |
8ded5a0f AM |
4658 | bfd_boolean |
4659 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4660 | { | |
4661 | unsigned int count; | |
4662 | struct elf_segment_map *m; | |
4663 | asection **sections = NULL; | |
4664 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4665 | bfd_boolean no_user_phdrs; |
252b5132 | 4666 | |
12bd6957 | 4667 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4668 | |
4669 | if (info != NULL) | |
4670 | info->user_phdrs = !no_user_phdrs; | |
4671 | ||
3dea8fca | 4672 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4673 | { |
8ded5a0f AM |
4674 | asection *s; |
4675 | unsigned int i; | |
4676 | struct elf_segment_map *mfirst; | |
4677 | struct elf_segment_map **pm; | |
4678 | asection *last_hdr; | |
4679 | bfd_vma last_size; | |
00bee008 | 4680 | unsigned int hdr_index; |
8ded5a0f AM |
4681 | bfd_vma maxpagesize; |
4682 | asection **hdrpp; | |
64029e93 | 4683 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4684 | bfd_boolean writable; |
2888249f | 4685 | bfd_boolean executable; |
446f7ed5 | 4686 | unsigned int tls_count = 0; |
8ded5a0f | 4687 | asection *first_tls = NULL; |
a91e1603 | 4688 | asection *first_mbind = NULL; |
8ded5a0f | 4689 | asection *dynsec, *eh_frame_hdr; |
446f7ed5 | 4690 | size_t amt; |
66631823 CE |
4691 | bfd_vma addr_mask, wrap_to = 0; /* Bytes. */ |
4692 | bfd_size_type phdr_size; /* Octets/bytes. */ | |
502794d4 | 4693 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 4694 | |
8ded5a0f | 4695 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4696 | |
446f7ed5 AM |
4697 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
4698 | sections = (asection **) bfd_malloc (amt); | |
8ded5a0f | 4699 | if (sections == NULL) |
252b5132 | 4700 | goto error_return; |
252b5132 | 4701 | |
8d06853e AM |
4702 | /* Calculate top address, avoiding undefined behaviour of shift |
4703 | left operator when shift count is equal to size of type | |
4704 | being shifted. */ | |
4705 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4706 | addr_mask = (addr_mask << 1) + 1; | |
4707 | ||
8ded5a0f AM |
4708 | i = 0; |
4709 | for (s = abfd->sections; s != NULL; s = s->next) | |
4710 | { | |
4711 | if ((s->flags & SEC_ALLOC) != 0) | |
4712 | { | |
48db3297 AM |
4713 | /* target_index is unused until bfd_elf_final_link |
4714 | starts output of section symbols. Use it to make | |
4715 | qsort stable. */ | |
4716 | s->target_index = i; | |
8ded5a0f AM |
4717 | sections[i] = s; |
4718 | ++i; | |
8d06853e | 4719 | /* A wrapping section potentially clashes with header. */ |
66631823 CE |
4720 | if (((s->lma + s->size / opb) & addr_mask) < (s->lma & addr_mask)) |
4721 | wrap_to = (s->lma + s->size / opb) & addr_mask; | |
8ded5a0f AM |
4722 | } |
4723 | } | |
4724 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4725 | count = i; | |
252b5132 | 4726 | |
8ded5a0f | 4727 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4728 | |
64029e93 AM |
4729 | phdr_size = elf_program_header_size (abfd); |
4730 | if (phdr_size == (bfd_size_type) -1) | |
4731 | phdr_size = get_program_header_size (abfd, info); | |
4732 | phdr_size += bed->s->sizeof_ehdr; | |
502794d4 CE |
4733 | /* phdr_size is compared to LMA values which are in bytes. */ |
4734 | phdr_size /= opb; | |
64029e93 AM |
4735 | maxpagesize = bed->maxpagesize; |
4736 | if (maxpagesize == 0) | |
4737 | maxpagesize = 1; | |
4738 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4739 | if (count != 0 | |
4740 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4741 | >= (phdr_size & (maxpagesize - 1)))) | |
4742 | /* For compatibility with old scripts that may not be using | |
4743 | SIZEOF_HEADERS, add headers when it looks like space has | |
4744 | been left for them. */ | |
4745 | phdr_in_segment = TRUE; | |
252b5132 | 4746 | |
64029e93 | 4747 | /* Build the mapping. */ |
8ded5a0f AM |
4748 | mfirst = NULL; |
4749 | pm = &mfirst; | |
252b5132 | 4750 | |
8ded5a0f AM |
4751 | /* If we have a .interp section, then create a PT_PHDR segment for |
4752 | the program headers and a PT_INTERP segment for the .interp | |
4753 | section. */ | |
4754 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4755 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4756 | { |
4757 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4758 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4759 | if (m == NULL) |
4760 | goto error_return; | |
4761 | m->next = NULL; | |
4762 | m->p_type = PT_PHDR; | |
f882209d | 4763 | m->p_flags = PF_R; |
8ded5a0f AM |
4764 | m->p_flags_valid = 1; |
4765 | m->includes_phdrs = 1; | |
64029e93 | 4766 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4767 | *pm = m; |
4768 | pm = &m->next; | |
252b5132 | 4769 | |
8ded5a0f | 4770 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4771 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4772 | if (m == NULL) |
4773 | goto error_return; | |
4774 | m->next = NULL; | |
4775 | m->p_type = PT_INTERP; | |
4776 | m->count = 1; | |
4777 | m->sections[0] = s; | |
4778 | ||
4779 | *pm = m; | |
4780 | pm = &m->next; | |
252b5132 | 4781 | } |
8ded5a0f AM |
4782 | |
4783 | /* Look through the sections. We put sections in the same program | |
4784 | segment when the start of the second section can be placed within | |
4785 | a few bytes of the end of the first section. */ | |
4786 | last_hdr = NULL; | |
4787 | last_size = 0; | |
00bee008 | 4788 | hdr_index = 0; |
8ded5a0f | 4789 | writable = FALSE; |
2888249f | 4790 | executable = FALSE; |
8ded5a0f AM |
4791 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4792 | if (dynsec != NULL | |
4793 | && (dynsec->flags & SEC_LOAD) == 0) | |
4794 | dynsec = NULL; | |
4795 | ||
64029e93 AM |
4796 | if ((abfd->flags & D_PAGED) == 0) |
4797 | phdr_in_segment = FALSE; | |
4798 | ||
8ded5a0f AM |
4799 | /* Deal with -Ttext or something similar such that the first section |
4800 | is not adjacent to the program headers. This is an | |
4801 | approximation, since at this point we don't know exactly how many | |
4802 | program headers we will need. */ | |
64029e93 | 4803 | if (phdr_in_segment && count > 0) |
252b5132 | 4804 | { |
66631823 | 4805 | bfd_vma phdr_lma; /* Bytes. */ |
64029e93 AM |
4806 | bfd_boolean separate_phdr = FALSE; |
4807 | ||
4808 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4809 | if (info != NULL | |
4810 | && info->separate_code | |
4811 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4812 | { |
64029e93 AM |
4813 | /* If data sections should be separate from code and |
4814 | thus not executable, and the first section is | |
4815 | executable then put the file and program headers in | |
4816 | their own PT_LOAD. */ | |
4817 | separate_phdr = TRUE; | |
4818 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4819 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4820 | { | |
4821 | /* The file and program headers are currently on the | |
4822 | same page as the first section. Put them on the | |
4823 | previous page if we can. */ | |
4824 | if (phdr_lma >= maxpagesize) | |
4825 | phdr_lma -= maxpagesize; | |
4826 | else | |
4827 | separate_phdr = FALSE; | |
4828 | } | |
4829 | } | |
4830 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4831 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4832 | /* If file and program headers would be placed at the end | |
4833 | of memory then it's probably better to omit them. */ | |
4834 | phdr_in_segment = FALSE; | |
4835 | else if (phdr_lma < wrap_to) | |
4836 | /* If a section wraps around to where we'll be placing | |
4837 | file and program headers, then the headers will be | |
4838 | overwritten. */ | |
4839 | phdr_in_segment = FALSE; | |
4840 | else if (separate_phdr) | |
4841 | { | |
4842 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4843 | if (m == NULL) | |
4844 | goto error_return; | |
66631823 | 4845 | m->p_paddr = phdr_lma * opb; |
64029e93 AM |
4846 | m->p_vaddr_offset |
4847 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4848 | m->p_paddr_valid = 1; | |
4849 | *pm = m; | |
4850 | pm = &m->next; | |
4851 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4852 | } |
252b5132 RH |
4853 | } |
4854 | ||
8ded5a0f | 4855 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4856 | { |
8ded5a0f AM |
4857 | asection *hdr; |
4858 | bfd_boolean new_segment; | |
4859 | ||
4860 | hdr = *hdrpp; | |
4861 | ||
4862 | /* See if this section and the last one will fit in the same | |
4863 | segment. */ | |
4864 | ||
4865 | if (last_hdr == NULL) | |
4866 | { | |
4867 | /* If we don't have a segment yet, then we don't need a new | |
4868 | one (we build the last one after this loop). */ | |
4869 | new_segment = FALSE; | |
4870 | } | |
4871 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4872 | { | |
4873 | /* If this section has a different relation between the | |
4874 | virtual address and the load address, then we need a new | |
4875 | segment. */ | |
4876 | new_segment = TRUE; | |
4877 | } | |
b5599592 AM |
4878 | else if (hdr->lma < last_hdr->lma + last_size |
4879 | || last_hdr->lma + last_size < last_hdr->lma) | |
4880 | { | |
4881 | /* If this section has a load address that makes it overlap | |
4882 | the previous section, then we need a new segment. */ | |
4883 | new_segment = TRUE; | |
4884 | } | |
76cb3a89 AM |
4885 | else if ((abfd->flags & D_PAGED) != 0 |
4886 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4887 | == (hdr->lma & -maxpagesize))) | |
4888 | { | |
4889 | /* If we are demand paged then we can't map two disk | |
4890 | pages onto the same memory page. */ | |
4891 | new_segment = FALSE; | |
4892 | } | |
39948a60 NC |
4893 | /* In the next test we have to be careful when last_hdr->lma is close |
4894 | to the end of the address space. If the aligned address wraps | |
4895 | around to the start of the address space, then there are no more | |
4896 | pages left in memory and it is OK to assume that the current | |
4897 | section can be included in the current segment. */ | |
76cb3a89 AM |
4898 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4899 | + maxpagesize > last_hdr->lma) | |
4900 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4901 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4902 | { |
4903 | /* If putting this section in this segment would force us to | |
4904 | skip a page in the segment, then we need a new segment. */ | |
4905 | new_segment = TRUE; | |
4906 | } | |
4907 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4908 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4909 | { |
e5654c0f AM |
4910 | /* We don't want to put a loaded section after a |
4911 | nonloaded (ie. bss style) section in the same segment | |
4912 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4913 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4914 | new_segment = TRUE; |
4915 | } | |
4916 | else if ((abfd->flags & D_PAGED) == 0) | |
4917 | { | |
4918 | /* If the file is not demand paged, which means that we | |
4919 | don't require the sections to be correctly aligned in the | |
4920 | file, then there is no other reason for a new segment. */ | |
4921 | new_segment = FALSE; | |
4922 | } | |
2888249f L |
4923 | else if (info != NULL |
4924 | && info->separate_code | |
4925 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4926 | { | |
4927 | new_segment = TRUE; | |
4928 | } | |
8ded5a0f | 4929 | else if (! writable |
76cb3a89 | 4930 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4931 | { |
4932 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4933 | segment. */ |
8ded5a0f AM |
4934 | new_segment = TRUE; |
4935 | } | |
4936 | else | |
4937 | { | |
4938 | /* Otherwise, we can use the same segment. */ | |
4939 | new_segment = FALSE; | |
4940 | } | |
4941 | ||
2889e75b | 4942 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4943 | if (last_hdr != NULL |
4944 | && info != NULL | |
4945 | && info->callbacks->override_segment_assignment != NULL) | |
4946 | new_segment | |
4947 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4948 | last_hdr, | |
4949 | new_segment); | |
2889e75b | 4950 | |
8ded5a0f AM |
4951 | if (! new_segment) |
4952 | { | |
4953 | if ((hdr->flags & SEC_READONLY) == 0) | |
4954 | writable = TRUE; | |
2888249f L |
4955 | if ((hdr->flags & SEC_CODE) != 0) |
4956 | executable = TRUE; | |
8ded5a0f AM |
4957 | last_hdr = hdr; |
4958 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4959 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
8ded5a0f AM |
4960 | continue; |
4961 | } | |
4962 | ||
4963 | /* We need a new program segment. We must create a new program | |
00bee008 | 4964 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4965 | |
00bee008 | 4966 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4967 | if (m == NULL) |
4968 | goto error_return; | |
4969 | ||
4970 | *pm = m; | |
4971 | pm = &m->next; | |
4972 | ||
252b5132 | 4973 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4974 | writable = TRUE; |
8ded5a0f AM |
4975 | else |
4976 | writable = FALSE; | |
4977 | ||
2888249f L |
4978 | if ((hdr->flags & SEC_CODE) == 0) |
4979 | executable = FALSE; | |
4980 | else | |
4981 | executable = TRUE; | |
4982 | ||
baaff79e JJ |
4983 | last_hdr = hdr; |
4984 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4985 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
00bee008 | 4986 | hdr_index = i; |
8ded5a0f | 4987 | phdr_in_segment = FALSE; |
252b5132 RH |
4988 | } |
4989 | ||
86b2281f AM |
4990 | /* Create a final PT_LOAD program segment, but not if it's just |
4991 | for .tbss. */ | |
4992 | if (last_hdr != NULL | |
00bee008 | 4993 | && (i - hdr_index != 1 |
dbc88fc1 | 4994 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4995 | { |
00bee008 | 4996 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4997 | if (m == NULL) |
4998 | goto error_return; | |
252b5132 | 4999 | |
8ded5a0f AM |
5000 | *pm = m; |
5001 | pm = &m->next; | |
5002 | } | |
252b5132 | 5003 | |
8ded5a0f AM |
5004 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
5005 | if (dynsec != NULL) | |
5006 | { | |
5007 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
5008 | if (m == NULL) | |
5009 | goto error_return; | |
5010 | *pm = m; | |
5011 | pm = &m->next; | |
5012 | } | |
252b5132 | 5013 | |
23e463ed | 5014 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
5015 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
5016 | because if we link together nonloadable .note sections and | |
5017 | loadable .note sections, we will generate two .note sections | |
23e463ed | 5018 | in the output file. */ |
8ded5a0f AM |
5019 | for (s = abfd->sections; s != NULL; s = s->next) |
5020 | { | |
5021 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 5022 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 5023 | { |
1c5265b5 | 5024 | asection *s2; |
23e463ed | 5025 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5026 | |
5027 | count = 1; | |
23e463ed L |
5028 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5029 | { | |
5030 | if (s2->next->alignment_power == alignment_power | |
5031 | && (s2->next->flags & SEC_LOAD) != 0 | |
5032 | && elf_section_type (s2->next) == SHT_NOTE | |
66631823 | 5033 | && align_power (s2->lma + s2->size / opb, |
23e463ed L |
5034 | alignment_power) |
5035 | == s2->next->lma) | |
5036 | count++; | |
5037 | else | |
5038 | break; | |
5039 | } | |
00bee008 AM |
5040 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5041 | amt += count * sizeof (asection *); | |
a50b1753 | 5042 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5043 | if (m == NULL) |
5044 | goto error_return; | |
5045 | m->next = NULL; | |
5046 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5047 | m->count = count; |
5048 | while (count > 1) | |
5049 | { | |
5050 | m->sections[m->count - count--] = s; | |
5051 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5052 | s = s->next; | |
5053 | } | |
5054 | m->sections[m->count - 1] = s; | |
5055 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5056 | *pm = m; |
5057 | pm = &m->next; | |
5058 | } | |
5059 | if (s->flags & SEC_THREAD_LOCAL) | |
5060 | { | |
5061 | if (! tls_count) | |
5062 | first_tls = s; | |
5063 | tls_count++; | |
5064 | } | |
a91e1603 L |
5065 | if (first_mbind == NULL |
5066 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5067 | first_mbind = s; | |
8ded5a0f | 5068 | } |
252b5132 | 5069 | |
8ded5a0f AM |
5070 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5071 | if (tls_count > 0) | |
5072 | { | |
00bee008 AM |
5073 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5074 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5075 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5076 | if (m == NULL) |
5077 | goto error_return; | |
5078 | m->next = NULL; | |
5079 | m->p_type = PT_TLS; | |
5080 | m->count = tls_count; | |
5081 | /* Mandated PF_R. */ | |
5082 | m->p_flags = PF_R; | |
5083 | m->p_flags_valid = 1; | |
d923cae0 | 5084 | s = first_tls; |
446f7ed5 | 5085 | for (i = 0; i < tls_count; ++i) |
8ded5a0f | 5086 | { |
d923cae0 L |
5087 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5088 | { | |
5089 | _bfd_error_handler | |
871b3ab2 | 5090 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5091 | s = first_tls; |
5092 | i = 0; | |
446f7ed5 | 5093 | while (i < tls_count) |
d923cae0 L |
5094 | { |
5095 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5096 | { | |
871b3ab2 | 5097 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5098 | i++; |
5099 | } | |
5100 | else | |
871b3ab2 | 5101 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5102 | s = s->next; |
5103 | } | |
5104 | bfd_set_error (bfd_error_bad_value); | |
5105 | goto error_return; | |
5106 | } | |
5107 | m->sections[i] = s; | |
5108 | s = s->next; | |
8ded5a0f | 5109 | } |
252b5132 | 5110 | |
8ded5a0f AM |
5111 | *pm = m; |
5112 | pm = &m->next; | |
5113 | } | |
252b5132 | 5114 | |
df3a023b AM |
5115 | if (first_mbind |
5116 | && (abfd->flags & D_PAGED) != 0 | |
5117 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5118 | for (s = first_mbind; s != NULL; s = s->next) |
5119 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5120 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5121 | { |
5122 | /* Mandated PF_R. */ | |
5123 | unsigned long p_flags = PF_R; | |
5124 | if ((s->flags & SEC_READONLY) == 0) | |
5125 | p_flags |= PF_W; | |
5126 | if ((s->flags & SEC_CODE) != 0) | |
5127 | p_flags |= PF_X; | |
5128 | ||
5129 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5130 | m = bfd_zalloc (abfd, amt); | |
5131 | if (m == NULL) | |
5132 | goto error_return; | |
5133 | m->next = NULL; | |
5134 | m->p_type = (PT_GNU_MBIND_LO | |
5135 | + elf_section_data (s)->this_hdr.sh_info); | |
5136 | m->count = 1; | |
5137 | m->p_flags_valid = 1; | |
5138 | m->sections[0] = s; | |
5139 | m->p_flags = p_flags; | |
5140 | ||
5141 | *pm = m; | |
5142 | pm = &m->next; | |
5143 | } | |
5144 | ||
0a59decb L |
5145 | s = bfd_get_section_by_name (abfd, |
5146 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5147 | if (s != NULL && s->size != 0) | |
5148 | { | |
5149 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5150 | m = bfd_zalloc (abfd, amt); | |
5151 | if (m == NULL) | |
5152 | goto error_return; | |
5153 | m->next = NULL; | |
5154 | m->p_type = PT_GNU_PROPERTY; | |
5155 | m->count = 1; | |
5156 | m->p_flags_valid = 1; | |
5157 | m->sections[0] = s; | |
5158 | m->p_flags = PF_R; | |
5159 | *pm = m; | |
5160 | pm = &m->next; | |
5161 | } | |
5162 | ||
8ded5a0f AM |
5163 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5164 | segment. */ | |
12bd6957 | 5165 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5166 | if (eh_frame_hdr != NULL |
5167 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5168 | { |
dc810e39 | 5169 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5170 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5171 | if (m == NULL) |
5172 | goto error_return; | |
5173 | m->next = NULL; | |
8ded5a0f | 5174 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5175 | m->count = 1; |
8ded5a0f | 5176 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5177 | |
5178 | *pm = m; | |
5179 | pm = &m->next; | |
5180 | } | |
13ae64f3 | 5181 | |
12bd6957 | 5182 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5183 | { |
8ded5a0f | 5184 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5185 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5186 | if (m == NULL) |
5187 | goto error_return; | |
5188 | m->next = NULL; | |
2b05f1b7 | 5189 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5190 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5191 | m->p_align = bed->stack_align; |
8ded5a0f | 5192 | m->p_flags_valid = 1; |
04c3a755 NS |
5193 | m->p_align_valid = m->p_align != 0; |
5194 | if (info->stacksize > 0) | |
5195 | { | |
5196 | m->p_size = info->stacksize; | |
5197 | m->p_size_valid = 1; | |
5198 | } | |
252b5132 | 5199 | |
8ded5a0f AM |
5200 | *pm = m; |
5201 | pm = &m->next; | |
5202 | } | |
65765700 | 5203 | |
ceae84aa | 5204 | if (info != NULL && info->relro) |
8ded5a0f | 5205 | { |
f210dcff L |
5206 | for (m = mfirst; m != NULL; m = m->next) |
5207 | { | |
3832a4d8 AM |
5208 | if (m->p_type == PT_LOAD |
5209 | && m->count != 0 | |
5210 | && m->sections[0]->vma >= info->relro_start | |
5211 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5212 | { |
3832a4d8 AM |
5213 | i = m->count; |
5214 | while (--i != (unsigned) -1) | |
ec2e748a NC |
5215 | { |
5216 | if (m->sections[i]->size > 0 | |
5217 | && (m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5218 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5219 | break; | |
5220 | } | |
3832a4d8 | 5221 | |
43a8475c | 5222 | if (i != (unsigned) -1) |
f210dcff L |
5223 | break; |
5224 | } | |
be01b344 | 5225 | } |
f210dcff L |
5226 | |
5227 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5228 | if (m != NULL) | |
5229 | { | |
5230 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5231 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5232 | if (m == NULL) |
5233 | goto error_return; | |
5234 | m->next = NULL; | |
5235 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5236 | *pm = m; |
5237 | pm = &m->next; | |
5238 | } | |
8ded5a0f | 5239 | } |
9ee5e499 | 5240 | |
8ded5a0f | 5241 | free (sections); |
12bd6957 | 5242 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5243 | } |
5244 | ||
3dea8fca | 5245 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5246 | return FALSE; |
8c37241b | 5247 | |
12bd6957 | 5248 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5249 | ++count; |
12bd6957 | 5250 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5251 | |
b34976b6 | 5252 | return TRUE; |
252b5132 RH |
5253 | |
5254 | error_return: | |
5255 | if (sections != NULL) | |
5256 | free (sections); | |
b34976b6 | 5257 | return FALSE; |
252b5132 RH |
5258 | } |
5259 | ||
5260 | /* Sort sections by address. */ | |
5261 | ||
5262 | static int | |
217aa764 | 5263 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5264 | { |
5265 | const asection *sec1 = *(const asection **) arg1; | |
5266 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5267 | bfd_size_type size1, size2; |
252b5132 RH |
5268 | |
5269 | /* Sort by LMA first, since this is the address used to | |
5270 | place the section into a segment. */ | |
5271 | if (sec1->lma < sec2->lma) | |
5272 | return -1; | |
5273 | else if (sec1->lma > sec2->lma) | |
5274 | return 1; | |
5275 | ||
5276 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5277 | the same, and this will do nothing. */ | |
5278 | if (sec1->vma < sec2->vma) | |
5279 | return -1; | |
5280 | else if (sec1->vma > sec2->vma) | |
5281 | return 1; | |
5282 | ||
5283 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5284 | ||
07c6e936 | 5285 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5286 | |
5287 | if (TOEND (sec1)) | |
5288 | { | |
48db3297 | 5289 | if (!TOEND (sec2)) |
252b5132 RH |
5290 | return 1; |
5291 | } | |
00a7cdc5 | 5292 | else if (TOEND (sec2)) |
252b5132 RH |
5293 | return -1; |
5294 | ||
5295 | #undef TOEND | |
5296 | ||
00a7cdc5 NC |
5297 | /* Sort by size, to put zero sized sections |
5298 | before others at the same address. */ | |
252b5132 | 5299 | |
eea6121a AM |
5300 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5301 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5302 | |
5303 | if (size1 < size2) | |
252b5132 | 5304 | return -1; |
eecdbe52 | 5305 | if (size1 > size2) |
252b5132 RH |
5306 | return 1; |
5307 | ||
5308 | return sec1->target_index - sec2->target_index; | |
5309 | } | |
5310 | ||
30fe1832 AM |
5311 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5312 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5313 | ||
5314 | static int | |
5315 | elf_sort_segments (const void *arg1, const void *arg2) | |
5316 | { | |
5317 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5318 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5319 | ||
5320 | if (m1->p_type != m2->p_type) | |
5321 | { | |
5322 | if (m1->p_type == PT_NULL) | |
5323 | return 1; | |
5324 | if (m2->p_type == PT_NULL) | |
5325 | return -1; | |
5326 | return m1->p_type < m2->p_type ? -1 : 1; | |
5327 | } | |
5328 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5329 | return m1->includes_filehdr ? -1 : 1; | |
5330 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5331 | return m1->no_sort_lma ? -1 : 1; | |
5332 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5333 | { | |
4b3ecb3b | 5334 | bfd_vma lma1, lma2; /* Octets. */ |
30fe1832 AM |
5335 | lma1 = 0; |
5336 | if (m1->p_paddr_valid) | |
4b3ecb3b | 5337 | lma1 = m1->p_paddr; |
30fe1832 | 5338 | else if (m1->count != 0) |
4b3ecb3b AM |
5339 | { |
5340 | unsigned int opb = bfd_octets_per_byte (m1->sections[0]->owner, | |
5341 | m1->sections[0]); | |
5342 | lma1 = (m1->sections[0]->lma + m1->p_vaddr_offset) * opb; | |
5343 | } | |
30fe1832 AM |
5344 | lma2 = 0; |
5345 | if (m2->p_paddr_valid) | |
4b3ecb3b | 5346 | lma2 = m2->p_paddr; |
30fe1832 | 5347 | else if (m2->count != 0) |
4b3ecb3b AM |
5348 | { |
5349 | unsigned int opb = bfd_octets_per_byte (m2->sections[0]->owner, | |
5350 | m2->sections[0]); | |
5351 | lma2 = (m2->sections[0]->lma + m2->p_vaddr_offset) * opb; | |
5352 | } | |
30fe1832 AM |
5353 | if (lma1 != lma2) |
5354 | return lma1 < lma2 ? -1 : 1; | |
5355 | } | |
5356 | if (m1->idx != m2->idx) | |
5357 | return m1->idx < m2->idx ? -1 : 1; | |
5358 | return 0; | |
5359 | } | |
5360 | ||
340b6d91 AC |
5361 | /* Ian Lance Taylor writes: |
5362 | ||
5363 | We shouldn't be using % with a negative signed number. That's just | |
5364 | not good. We have to make sure either that the number is not | |
5365 | negative, or that the number has an unsigned type. When the types | |
5366 | are all the same size they wind up as unsigned. When file_ptr is a | |
5367 | larger signed type, the arithmetic winds up as signed long long, | |
5368 | which is wrong. | |
5369 | ||
5370 | What we're trying to say here is something like ``increase OFF by | |
5371 | the least amount that will cause it to be equal to the VMA modulo | |
5372 | the page size.'' */ | |
5373 | /* In other words, something like: | |
5374 | ||
5375 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5376 | off_offset = off % bed->maxpagesize; | |
5377 | if (vma_offset < off_offset) | |
5378 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5379 | else | |
5380 | adjustment = vma_offset - off_offset; | |
08a40648 | 5381 | |
de194d85 | 5382 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5383 | |
5384 | static file_ptr | |
5385 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5386 | { | |
dc9155b2 NC |
5387 | /* PR binutils/16199: Handle an alignment of zero. */ |
5388 | if (maxpagesize == 0) | |
5389 | maxpagesize = 1; | |
340b6d91 AC |
5390 | return ((vma - off) % maxpagesize); |
5391 | } | |
5392 | ||
6d33f217 L |
5393 | static void |
5394 | print_segment_map (const struct elf_segment_map *m) | |
5395 | { | |
5396 | unsigned int j; | |
5397 | const char *pt = get_segment_type (m->p_type); | |
5398 | char buf[32]; | |
5399 | ||
5400 | if (pt == NULL) | |
5401 | { | |
5402 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5403 | sprintf (buf, "LOPROC+%7.7x", | |
5404 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5405 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5406 | sprintf (buf, "LOOS+%7.7x", | |
5407 | (unsigned int) (m->p_type - PT_LOOS)); | |
5408 | else | |
5409 | snprintf (buf, sizeof (buf), "%8.8x", | |
5410 | (unsigned int) m->p_type); | |
5411 | pt = buf; | |
5412 | } | |
4a97a0e5 | 5413 | fflush (stdout); |
6d33f217 L |
5414 | fprintf (stderr, "%s:", pt); |
5415 | for (j = 0; j < m->count; j++) | |
5416 | fprintf (stderr, " %s", m->sections [j]->name); | |
5417 | putc ('\n',stderr); | |
4a97a0e5 | 5418 | fflush (stderr); |
6d33f217 L |
5419 | } |
5420 | ||
32812159 AM |
5421 | static bfd_boolean |
5422 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5423 | { | |
5424 | void *buf; | |
5425 | bfd_boolean ret; | |
5426 | ||
5427 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5428 | return FALSE; | |
5429 | buf = bfd_zmalloc (len); | |
5430 | if (buf == NULL) | |
5431 | return FALSE; | |
5432 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5433 | free (buf); | |
5434 | return ret; | |
5435 | } | |
5436 | ||
252b5132 RH |
5437 | /* Assign file positions to the sections based on the mapping from |
5438 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5439 | the file header. */ |
252b5132 | 5440 | |
b34976b6 | 5441 | static bfd_boolean |
f3520d2f AM |
5442 | assign_file_positions_for_load_sections (bfd *abfd, |
5443 | struct bfd_link_info *link_info) | |
252b5132 RH |
5444 | { |
5445 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5446 | struct elf_segment_map *m; |
30fe1832 | 5447 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5448 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5449 | Elf_Internal_Phdr *p; |
502794d4 | 5450 | file_ptr off; /* Octets. */ |
3f570048 | 5451 | bfd_size_type maxpagesize; |
30fe1832 | 5452 | unsigned int alloc, actual; |
0920dee7 | 5453 | unsigned int i, j; |
30fe1832 | 5454 | struct elf_segment_map **sorted_seg_map; |
502794d4 | 5455 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 5456 | |
e36284ab | 5457 | if (link_info == NULL |
ceae84aa | 5458 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5459 | return FALSE; |
252b5132 | 5460 | |
8ded5a0f | 5461 | alloc = 0; |
12bd6957 | 5462 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5463 | m->idx = alloc++; |
252b5132 | 5464 | |
82f2dbf7 NC |
5465 | if (alloc) |
5466 | { | |
5467 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5468 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5469 | } | |
5470 | else | |
5471 | { | |
5472 | /* PR binutils/12467. */ | |
5473 | elf_elfheader (abfd)->e_phoff = 0; | |
5474 | elf_elfheader (abfd)->e_phentsize = 0; | |
5475 | } | |
d324f6d6 | 5476 | |
8ded5a0f | 5477 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5478 | |
12bd6957 | 5479 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5480 | { |
5481 | actual = alloc; | |
5482 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5483 | } | |
8ded5a0f | 5484 | else |
30fe1832 AM |
5485 | { |
5486 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5487 | BFD_ASSERT (elf_program_header_size (abfd) | |
5488 | == actual * bed->s->sizeof_phdr); | |
5489 | BFD_ASSERT (actual >= alloc); | |
5490 | } | |
252b5132 RH |
5491 | |
5492 | if (alloc == 0) | |
f3520d2f | 5493 | { |
12bd6957 | 5494 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5495 | return TRUE; |
f3520d2f | 5496 | } |
252b5132 | 5497 | |
12bd6957 | 5498 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5499 | see assign_file_positions_except_relocs, so make sure we have |
5500 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5501 | The variable alloc contains the computed need, while |
5502 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5503 | layout. |
5504 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5505 | where the layout is forced to according to a larger size in the | |
5506 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5507 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5508 | + alloc * sizeof (*sorted_seg_map))); | |
5509 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5510 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5511 | if (phdrs == NULL) |
b34976b6 | 5512 | return FALSE; |
252b5132 | 5513 | |
30fe1832 | 5514 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5515 | { |
30fe1832 | 5516 | sorted_seg_map[j] = m; |
252b5132 | 5517 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5518 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5519 | not be done to the PT_NOTE section of a corefile, which may |
5520 | contain several pseudo-sections artificially created by bfd. | |
5521 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5522 | if (m->count > 1 |
5523 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5524 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5525 | { |
5526 | for (i = 0; i < m->count; i++) | |
5527 | m->sections[i]->target_index = i; | |
5528 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5529 | elf_sort_sections); | |
5530 | } | |
30fe1832 AM |
5531 | } |
5532 | if (alloc > 1) | |
5533 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5534 | elf_sort_segments); | |
5535 | ||
5536 | maxpagesize = 1; | |
5537 | if ((abfd->flags & D_PAGED) != 0) | |
5538 | maxpagesize = bed->maxpagesize; | |
5539 | ||
5540 | /* Sections must map to file offsets past the ELF file header. */ | |
5541 | off = bed->s->sizeof_ehdr; | |
5542 | /* And if one of the PT_LOAD headers doesn't include the program | |
5543 | headers then we'll be mapping program headers in the usual | |
5544 | position after the ELF file header. */ | |
5545 | phdr_load_seg = NULL; | |
5546 | for (j = 0; j < alloc; j++) | |
5547 | { | |
5548 | m = sorted_seg_map[j]; | |
5549 | if (m->p_type != PT_LOAD) | |
5550 | break; | |
5551 | if (m->includes_phdrs) | |
5552 | { | |
5553 | phdr_load_seg = m; | |
5554 | break; | |
5555 | } | |
5556 | } | |
5557 | if (phdr_load_seg == NULL) | |
5558 | off += actual * bed->s->sizeof_phdr; | |
5559 | ||
5560 | for (j = 0; j < alloc; j++) | |
5561 | { | |
5562 | asection **secpp; | |
502794d4 | 5563 | bfd_vma off_adjust; /* Octets. */ |
30fe1832 | 5564 | bfd_boolean no_contents; |
252b5132 | 5565 | |
b301b248 AM |
5566 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5567 | number of sections with contents contributing to both p_filesz | |
5568 | and p_memsz, followed by a number of sections with no contents | |
5569 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5570 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5571 | m = sorted_seg_map[j]; |
5572 | p = phdrs + m->idx; | |
252b5132 | 5573 | p->p_type = m->p_type; |
28a7f3e7 | 5574 | p->p_flags = m->p_flags; |
252b5132 | 5575 | |
3f570048 | 5576 | if (m->count == 0) |
502794d4 | 5577 | p->p_vaddr = m->p_vaddr_offset * opb; |
3f570048 | 5578 | else |
502794d4 | 5579 | p->p_vaddr = (m->sections[0]->vma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5580 | |
5581 | if (m->p_paddr_valid) | |
5582 | p->p_paddr = m->p_paddr; | |
5583 | else if (m->count == 0) | |
5584 | p->p_paddr = 0; | |
5585 | else | |
502794d4 | 5586 | p->p_paddr = (m->sections[0]->lma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5587 | |
5588 | if (p->p_type == PT_LOAD | |
5589 | && (abfd->flags & D_PAGED) != 0) | |
5590 | { | |
5591 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5592 | the maximum page size. When copying an executable with | |
5593 | objcopy, we set m->p_align from the input file. Use this | |
5594 | value for maxpagesize rather than bed->maxpagesize, which | |
5595 | may be different. Note that we use maxpagesize for PT_TLS | |
5596 | segment alignment later in this function, so we are relying | |
5597 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5598 | segment. */ | |
5599 | if (m->p_align_valid) | |
5600 | maxpagesize = m->p_align; | |
5601 | ||
5602 | p->p_align = maxpagesize; | |
5603 | } | |
3271a814 NS |
5604 | else if (m->p_align_valid) |
5605 | p->p_align = m->p_align; | |
e970b90a DJ |
5606 | else if (m->count == 0) |
5607 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5608 | |
5609 | if (m == phdr_load_seg) | |
5610 | { | |
5611 | if (!m->includes_filehdr) | |
5612 | p->p_offset = off; | |
5613 | off += actual * bed->s->sizeof_phdr; | |
5614 | } | |
3f570048 | 5615 | |
bf988460 AM |
5616 | no_contents = FALSE; |
5617 | off_adjust = 0; | |
252b5132 | 5618 | if (p->p_type == PT_LOAD |
b301b248 | 5619 | && m->count > 0) |
252b5132 | 5620 | { |
66631823 | 5621 | bfd_size_type align; /* Bytes. */ |
a49e53ed | 5622 | unsigned int align_power = 0; |
b301b248 | 5623 | |
3271a814 NS |
5624 | if (m->p_align_valid) |
5625 | align = p->p_align; | |
5626 | else | |
252b5132 | 5627 | { |
3271a814 NS |
5628 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5629 | { | |
5630 | unsigned int secalign; | |
08a40648 | 5631 | |
fd361982 | 5632 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5633 | if (secalign > align_power) |
5634 | align_power = secalign; | |
5635 | } | |
5636 | align = (bfd_size_type) 1 << align_power; | |
5637 | if (align < maxpagesize) | |
5638 | align = maxpagesize; | |
b301b248 | 5639 | } |
252b5132 | 5640 | |
02bf8d82 AM |
5641 | for (i = 0; i < m->count; i++) |
5642 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5643 | /* If we aren't making room for this section, then | |
5644 | it must be SHT_NOBITS regardless of what we've | |
5645 | set via struct bfd_elf_special_section. */ | |
5646 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5647 | ||
bf988460 | 5648 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5649 | sections. */ |
5650 | no_contents = TRUE; | |
5651 | for (i = 0; i < m->count; i++) | |
5652 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5653 | { | |
5654 | no_contents = FALSE; | |
5655 | break; | |
5656 | } | |
bf988460 | 5657 | |
66631823 | 5658 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align * opb); |
a8c75b76 AM |
5659 | |
5660 | /* Broken hardware and/or kernel require that files do not | |
5661 | map the same page with different permissions on some hppa | |
5662 | processors. */ | |
30fe1832 AM |
5663 | if (j != 0 |
5664 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5665 | && bed->no_page_alias |
5666 | && (off & (maxpagesize - 1)) != 0 | |
502794d4 CE |
5667 | && ((off & -maxpagesize) |
5668 | == ((off + off_adjust) & -maxpagesize))) | |
a8c75b76 | 5669 | off_adjust += maxpagesize; |
bf988460 AM |
5670 | off += off_adjust; |
5671 | if (no_contents) | |
5672 | { | |
5673 | /* We shouldn't need to align the segment on disk since | |
5674 | the segment doesn't need file space, but the gABI | |
5675 | arguably requires the alignment and glibc ld.so | |
5676 | checks it. So to comply with the alignment | |
5677 | requirement but not waste file space, we adjust | |
5678 | p_offset for just this segment. (OFF_ADJUST is | |
5679 | subtracted from OFF later.) This may put p_offset | |
5680 | past the end of file, but that shouldn't matter. */ | |
5681 | } | |
5682 | else | |
5683 | off_adjust = 0; | |
252b5132 | 5684 | } |
b1a6d0b1 NC |
5685 | /* Make sure the .dynamic section is the first section in the |
5686 | PT_DYNAMIC segment. */ | |
5687 | else if (p->p_type == PT_DYNAMIC | |
5688 | && m->count > 1 | |
5689 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5690 | { | |
5691 | _bfd_error_handler | |
871b3ab2 | 5692 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5693 | " is not the .dynamic section"), |
b301b248 | 5694 | abfd); |
b1a6d0b1 NC |
5695 | bfd_set_error (bfd_error_bad_value); |
5696 | return FALSE; | |
5697 | } | |
3f001e84 JK |
5698 | /* Set the note section type to SHT_NOTE. */ |
5699 | else if (p->p_type == PT_NOTE) | |
5700 | for (i = 0; i < m->count; i++) | |
5701 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5702 | |
252b5132 RH |
5703 | if (m->includes_filehdr) |
5704 | { | |
bf988460 | 5705 | if (!m->p_flags_valid) |
252b5132 | 5706 | p->p_flags |= PF_R; |
252b5132 RH |
5707 | p->p_filesz = bed->s->sizeof_ehdr; |
5708 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5709 | if (p->p_type == PT_LOAD) |
252b5132 | 5710 | { |
30fe1832 | 5711 | if (m->count > 0) |
252b5132 | 5712 | { |
30fe1832 AM |
5713 | if (p->p_vaddr < (bfd_vma) off |
5714 | || (!m->p_paddr_valid | |
5715 | && p->p_paddr < (bfd_vma) off)) | |
5716 | { | |
5717 | _bfd_error_handler | |
5718 | (_("%pB: not enough room for program headers," | |
5719 | " try linking with -N"), | |
5720 | abfd); | |
5721 | bfd_set_error (bfd_error_bad_value); | |
5722 | return FALSE; | |
5723 | } | |
5724 | p->p_vaddr -= off; | |
5725 | if (!m->p_paddr_valid) | |
5726 | p->p_paddr -= off; | |
252b5132 | 5727 | } |
30fe1832 AM |
5728 | } |
5729 | else if (sorted_seg_map[0]->includes_filehdr) | |
5730 | { | |
5731 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5732 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5733 | if (!m->p_paddr_valid) |
30fe1832 | 5734 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5735 | } |
252b5132 RH |
5736 | } |
5737 | ||
5738 | if (m->includes_phdrs) | |
5739 | { | |
bf988460 | 5740 | if (!m->p_flags_valid) |
252b5132 | 5741 | p->p_flags |= PF_R; |
30fe1832 AM |
5742 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5743 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5744 | if (!m->includes_filehdr) |
252b5132 | 5745 | { |
30fe1832 | 5746 | if (p->p_type == PT_LOAD) |
252b5132 | 5747 | { |
30fe1832 AM |
5748 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5749 | if (m->count > 0) | |
5750 | { | |
5751 | p->p_vaddr -= off - p->p_offset; | |
5752 | if (!m->p_paddr_valid) | |
5753 | p->p_paddr -= off - p->p_offset; | |
5754 | } | |
5755 | } | |
5756 | else if (phdr_load_seg != NULL) | |
5757 | { | |
5758 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
502794d4 | 5759 | bfd_vma phdr_off = 0; /* Octets. */ |
30fe1832 AM |
5760 | if (phdr_load_seg->includes_filehdr) |
5761 | phdr_off = bed->s->sizeof_ehdr; | |
5762 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5763 | if (!m->p_paddr_valid) |
30fe1832 AM |
5764 | p->p_paddr = phdr->p_paddr + phdr_off; |
5765 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5766 | } |
30fe1832 AM |
5767 | else |
5768 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5769 | } |
252b5132 RH |
5770 | } |
5771 | ||
5772 | if (p->p_type == PT_LOAD | |
5773 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5774 | { | |
bf988460 | 5775 | if (!m->includes_filehdr && !m->includes_phdrs) |
0bc3450e AM |
5776 | { |
5777 | p->p_offset = off; | |
5778 | if (no_contents) | |
67641dd3 AM |
5779 | { |
5780 | /* Put meaningless p_offset for PT_LOAD segments | |
5781 | without file contents somewhere within the first | |
5782 | page, in an attempt to not point past EOF. */ | |
5783 | bfd_size_type align = maxpagesize; | |
5784 | if (align < p->p_align) | |
5785 | align = p->p_align; | |
5786 | if (align < 1) | |
5787 | align = 1; | |
5788 | p->p_offset = off % align; | |
5789 | } | |
0bc3450e | 5790 | } |
252b5132 RH |
5791 | else |
5792 | { | |
502794d4 | 5793 | file_ptr adjust; /* Octets. */ |
252b5132 RH |
5794 | |
5795 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5796 | if (!no_contents) |
5797 | p->p_filesz += adjust; | |
252b5132 RH |
5798 | p->p_memsz += adjust; |
5799 | } | |
5800 | } | |
5801 | ||
1ea63fd2 AM |
5802 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5803 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5804 | core files, for sections in PT_NOTE segments. | |
5805 | assign_file_positions_for_non_load_sections will set filepos | |
5806 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5807 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5808 | { | |
5809 | asection *sec; | |
252b5132 | 5810 | bfd_size_type align; |
627b32bc | 5811 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5812 | |
5813 | sec = *secpp; | |
02bf8d82 | 5814 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5815 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5816 | |
88967714 AM |
5817 | if ((p->p_type == PT_LOAD |
5818 | || p->p_type == PT_TLS) | |
5819 | && (this_hdr->sh_type != SHT_NOBITS | |
5820 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5821 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5822 | || p->p_type == PT_TLS)))) | |
252b5132 | 5823 | { |
502794d4 CE |
5824 | bfd_vma p_start = p->p_paddr; /* Octets. */ |
5825 | bfd_vma p_end = p_start + p->p_memsz; /* Octets. */ | |
5826 | bfd_vma s_start = sec->lma * opb; /* Octets. */ | |
5827 | bfd_vma adjust = s_start - p_end; /* Octets. */ | |
252b5132 | 5828 | |
a2d1e028 L |
5829 | if (adjust != 0 |
5830 | && (s_start < p_end | |
5831 | || p_end < p_start)) | |
252b5132 | 5832 | { |
4eca0228 | 5833 | _bfd_error_handler |
695344c0 | 5834 | /* xgettext:c-format */ |
2dcf00ce | 5835 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
502794d4 CE |
5836 | abfd, sec, (uint64_t) s_start / opb, |
5837 | (uint64_t) p_end / opb); | |
88967714 | 5838 | adjust = 0; |
502794d4 | 5839 | sec->lma = p_end / opb; |
1cfb7d1e | 5840 | } |
3ac9b6c9 | 5841 | p->p_memsz += adjust; |
1cfb7d1e | 5842 | |
d16e3d2e | 5843 | if (p->p_type == PT_LOAD) |
88967714 | 5844 | { |
d16e3d2e | 5845 | if (this_hdr->sh_type != SHT_NOBITS) |
32812159 | 5846 | { |
d16e3d2e | 5847 | off_adjust = 0; |
30fe1832 AM |
5848 | if (p->p_filesz + adjust < p->p_memsz) |
5849 | { | |
5850 | /* We have a PROGBITS section following NOBITS ones. | |
5851 | Allocate file space for the NOBITS section(s) and | |
5852 | zero it. */ | |
5853 | adjust = p->p_memsz - p->p_filesz; | |
5854 | if (!write_zeros (abfd, off, adjust)) | |
5855 | return FALSE; | |
5856 | } | |
d16e3d2e AM |
5857 | } |
5858 | /* We only adjust sh_offset in SHT_NOBITS sections | |
5859 | as would seem proper for their address when the | |
5860 | section is first in the segment. sh_offset | |
5861 | doesn't really have any significance for | |
5862 | SHT_NOBITS anyway, apart from a notional position | |
5863 | relative to other sections. Historically we | |
5864 | didn't bother with adjusting sh_offset and some | |
5865 | programs depend on it not being adjusted. See | |
5866 | pr12921 and pr25662. */ | |
5867 | if (this_hdr->sh_type != SHT_NOBITS || i == 0) | |
5868 | { | |
30fe1832 | 5869 | off += adjust; |
d16e3d2e AM |
5870 | if (this_hdr->sh_type == SHT_NOBITS) |
5871 | off_adjust += adjust; | |
32812159 | 5872 | } |
252b5132 | 5873 | } |
d16e3d2e AM |
5874 | if (this_hdr->sh_type != SHT_NOBITS) |
5875 | p->p_filesz += adjust; | |
252b5132 RH |
5876 | } |
5877 | ||
5878 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5879 | { | |
b301b248 AM |
5880 | /* The section at i == 0 is the one that actually contains |
5881 | everything. */ | |
4a938328 MS |
5882 | if (i == 0) |
5883 | { | |
627b32bc | 5884 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5885 | off += this_hdr->sh_size; |
5886 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5887 | p->p_memsz = 0; |
5888 | p->p_align = 1; | |
252b5132 | 5889 | } |
4a938328 | 5890 | else |
252b5132 | 5891 | { |
b301b248 | 5892 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5893 | sec->filepos = 0; |
eea6121a | 5894 | sec->size = 0; |
b301b248 AM |
5895 | sec->flags = 0; |
5896 | continue; | |
252b5132 | 5897 | } |
252b5132 RH |
5898 | } |
5899 | else | |
5900 | { | |
1e951488 | 5901 | if (p->p_type == PT_LOAD) |
b301b248 | 5902 | { |
1e951488 AM |
5903 | this_hdr->sh_offset = sec->filepos = off; |
5904 | if (this_hdr->sh_type != SHT_NOBITS) | |
5905 | off += this_hdr->sh_size; | |
5906 | } | |
5907 | else if (this_hdr->sh_type == SHT_NOBITS | |
5908 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5909 | && this_hdr->sh_offset == 0) | |
5910 | { | |
5911 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5912 | (See _bfd_elf_map_sections_to_segments "Create a | |
5913 | final PT_LOAD".) Set sh_offset to the value it | |
5914 | would have if we had created a zero p_filesz and | |
5915 | p_memsz PT_LOAD header for the section. This | |
5916 | also makes the PT_TLS header have the same | |
5917 | p_offset value. */ | |
5918 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5919 | off, align); | |
5920 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5921 | } |
252b5132 | 5922 | |
02bf8d82 | 5923 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5924 | { |
6a3cd2b4 | 5925 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5926 | /* A load section without SHF_ALLOC is something like |
5927 | a note section in a PT_NOTE segment. These take | |
5928 | file space but are not loaded into memory. */ | |
5929 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5930 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5931 | } |
6a3cd2b4 | 5932 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5933 | { |
6a3cd2b4 AM |
5934 | if (p->p_type == PT_TLS) |
5935 | p->p_memsz += this_hdr->sh_size; | |
5936 | ||
5937 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5938 | normal segments. */ | |
5939 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5940 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5941 | } |
5942 | ||
b10a8ae0 L |
5943 | if (align > p->p_align |
5944 | && !m->p_align_valid | |
5945 | && (p->p_type != PT_LOAD | |
5946 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5947 | p->p_align = align; |
5948 | } | |
5949 | ||
bf988460 | 5950 | if (!m->p_flags_valid) |
252b5132 RH |
5951 | { |
5952 | p->p_flags |= PF_R; | |
02bf8d82 | 5953 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5954 | p->p_flags |= PF_X; |
02bf8d82 | 5955 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5956 | p->p_flags |= PF_W; |
5957 | } | |
5958 | } | |
43a8475c | 5959 | |
bf988460 | 5960 | off -= off_adjust; |
0920dee7 | 5961 | |
30fe1832 AM |
5962 | /* PR ld/20815 - Check that the program header segment, if |
5963 | present, will be loaded into memory. */ | |
5964 | if (p->p_type == PT_PHDR | |
5965 | && phdr_load_seg == NULL | |
5966 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5967 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5968 | { | |
5969 | /* The fix for this error is usually to edit the linker script being | |
5970 | used and set up the program headers manually. Either that or | |
5971 | leave room for the headers at the start of the SECTIONS. */ | |
5972 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5973 | " by LOAD segment"), | |
5974 | abfd); | |
7b3c2715 AM |
5975 | if (link_info == NULL) |
5976 | return FALSE; | |
5977 | /* Arrange for the linker to exit with an error, deleting | |
5978 | the output file unless --noinhibit-exec is given. */ | |
5979 | link_info->callbacks->info ("%X"); | |
30fe1832 AM |
5980 | } |
5981 | ||
7c928300 AM |
5982 | /* Check that all sections are in a PT_LOAD segment. |
5983 | Don't check funky gdb generated core files. */ | |
5984 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5985 | { |
5986 | bfd_boolean check_vma = TRUE; | |
5987 | ||
5988 | for (i = 1; i < m->count; i++) | |
5989 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5990 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5991 | ->this_hdr), p) != 0 | |
5992 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5993 | ->this_hdr), p) != 0) | |
0920dee7 | 5994 | { |
9a83a553 AM |
5995 | /* Looks like we have overlays packed into the segment. */ |
5996 | check_vma = FALSE; | |
5997 | break; | |
0920dee7 | 5998 | } |
9a83a553 AM |
5999 | |
6000 | for (i = 0; i < m->count; i++) | |
6001 | { | |
6002 | Elf_Internal_Shdr *this_hdr; | |
6003 | asection *sec; | |
6004 | ||
6005 | sec = m->sections[i]; | |
6006 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
6007 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
6008 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 6009 | { |
4eca0228 | 6010 | _bfd_error_handler |
695344c0 | 6011 | /* xgettext:c-format */ |
871b3ab2 | 6012 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
6013 | abfd, sec, j); |
6014 | print_segment_map (m); | |
6015 | } | |
6016 | } | |
6017 | } | |
252b5132 RH |
6018 | } |
6019 | ||
12bd6957 | 6020 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
6021 | |
6022 | if (link_info != NULL | |
6023 | && phdr_load_seg != NULL | |
6024 | && phdr_load_seg->includes_filehdr) | |
6025 | { | |
6026 | /* There is a segment that contains both the file headers and the | |
6027 | program headers, so provide a symbol __ehdr_start pointing there. | |
6028 | A program can use this to examine itself robustly. */ | |
6029 | ||
6030 | struct elf_link_hash_entry *hash | |
6031 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
6032 | FALSE, FALSE, TRUE); | |
6033 | /* If the symbol was referenced and not defined, define it. */ | |
6034 | if (hash != NULL | |
6035 | && (hash->root.type == bfd_link_hash_new | |
6036 | || hash->root.type == bfd_link_hash_undefined | |
6037 | || hash->root.type == bfd_link_hash_undefweak | |
6038 | || hash->root.type == bfd_link_hash_common)) | |
6039 | { | |
6040 | asection *s = NULL; | |
66631823 | 6041 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr / opb; |
30fe1832 AM |
6042 | |
6043 | if (phdr_load_seg->count != 0) | |
6044 | /* The segment contains sections, so use the first one. */ | |
6045 | s = phdr_load_seg->sections[0]; | |
6046 | else | |
6047 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
6048 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6049 | if (m->p_type == PT_LOAD && m->count != 0) | |
6050 | { | |
6051 | s = m->sections[0]; | |
6052 | break; | |
6053 | } | |
6054 | ||
6055 | if (s != NULL) | |
6056 | { | |
6057 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6058 | hash->root.u.def.section = s; | |
6059 | } | |
6060 | else | |
6061 | { | |
6062 | hash->root.u.def.value = filehdr_vaddr; | |
6063 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6064 | } | |
6065 | ||
6066 | hash->root.type = bfd_link_hash_defined; | |
6067 | hash->def_regular = 1; | |
6068 | hash->non_elf = 0; | |
6069 | } | |
6070 | } | |
6071 | ||
f3520d2f AM |
6072 | return TRUE; |
6073 | } | |
6074 | ||
1faa385f NC |
6075 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6076 | is no defined method for detecting such files, so we have to | |
6077 | use heuristics instead. */ | |
6078 | ||
6079 | bfd_boolean | |
6080 | is_debuginfo_file (bfd *abfd) | |
6081 | { | |
6082 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
6083 | return FALSE; | |
6084 | ||
6085 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6086 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6087 | Elf_Internal_Shdr **headerp; | |
6088 | ||
6089 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6090 | { | |
6091 | Elf_Internal_Shdr *header = * headerp; | |
6092 | ||
6093 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6094 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6095 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6096 | && header->sh_type != SHT_NOBITS | |
6097 | && header->sh_type != SHT_NOTE) | |
6098 | return FALSE; | |
6099 | } | |
6100 | ||
6101 | return TRUE; | |
6102 | } | |
6103 | ||
1ff6de03 NA |
6104 | /* Assign file positions for the other sections, except for compressed debugging |
6105 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f AM |
6106 | |
6107 | static bfd_boolean | |
6108 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
6109 | struct bfd_link_info *link_info) | |
6110 | { | |
6111 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6112 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6113 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6114 | Elf_Internal_Phdr *phdrs; |
6115 | Elf_Internal_Phdr *p; | |
6116 | struct elf_segment_map *m; | |
f3520d2f | 6117 | file_ptr off; |
66631823 | 6118 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
f3520d2f | 6119 | |
5c182d5f | 6120 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6121 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6122 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6123 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6124 | { |
5c182d5f AM |
6125 | Elf_Internal_Shdr *hdr; |
6126 | ||
6127 | hdr = *hdrpp; | |
6128 | if (hdr->bfd_section != NULL | |
252e386e AM |
6129 | && (hdr->bfd_section->filepos != 0 |
6130 | || (hdr->sh_type == SHT_NOBITS | |
6131 | && hdr->contents == NULL))) | |
627b32bc | 6132 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6133 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6134 | { | |
1faa385f NC |
6135 | if (hdr->sh_size != 0 |
6136 | /* PR 24717 - debuginfo files are known to be not strictly | |
6137 | compliant with the ELF standard. In particular they often | |
6138 | have .note.gnu.property sections that are outside of any | |
6139 | loadable segment. This is not a problem for such files, | |
6140 | so do not warn about them. */ | |
6141 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6142 | _bfd_error_handler |
695344c0 | 6143 | /* xgettext:c-format */ |
871b3ab2 | 6144 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6145 | abfd, |
6146 | (hdr->bfd_section == NULL | |
6147 | ? "*unknown*" | |
6148 | : hdr->bfd_section->name)); | |
3ba71138 L |
6149 | /* We don't need to page align empty sections. */ |
6150 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
6151 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
6152 | bed->maxpagesize); | |
6153 | else | |
6154 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
6155 | hdr->sh_addralign); | |
6156 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
6157 | FALSE); | |
6158 | } | |
6159 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6160 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6161 | /* We don't know the offset of these sections yet: their size has |
6162 | not been decided. */ | |
0ce398f1 | 6163 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6164 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6165 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6166 | && abfd->is_linker_output))) | |
12bd6957 | 6167 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6168 | || (elf_symtab_shndx_list (abfd) != NULL |
6169 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6170 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6171 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6172 | hdr->sh_offset = -1; |
6173 | else | |
6174 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f | 6175 | } |
30fe1832 | 6176 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6177 | |
252b5132 RH |
6178 | /* Now that we have set the section file positions, we can set up |
6179 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6180 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6181 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6182 | { |
129af99f | 6183 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6184 | { |
66631823 | 6185 | bfd_vma start, end; /* Bytes. */ |
01f7e10c | 6186 | bfd_boolean ok; |
1ea63fd2 | 6187 | |
129af99f | 6188 | if (link_info != NULL) |
8c37241b | 6189 | { |
129af99f | 6190 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6191 | in link_info. Note that there may be padding between |
6192 | relro_start and the first RELRO section. */ | |
6193 | start = link_info->relro_start; | |
6194 | end = link_info->relro_end; | |
6195 | } | |
6196 | else if (m->count != 0) | |
6197 | { | |
6198 | if (!m->p_size_valid) | |
6199 | abort (); | |
6200 | start = m->sections[0]->vma; | |
66631823 | 6201 | end = start + m->p_size / opb; |
f2731e0c AM |
6202 | } |
6203 | else | |
6204 | { | |
6205 | start = 0; | |
6206 | end = 0; | |
6207 | } | |
6208 | ||
01f7e10c | 6209 | ok = FALSE; |
f2731e0c AM |
6210 | if (start < end) |
6211 | { | |
6212 | struct elf_segment_map *lm; | |
6213 | const Elf_Internal_Phdr *lp; | |
6214 | unsigned int i; | |
6215 | ||
6216 | /* Find a LOAD segment containing a section in the RELRO | |
6217 | segment. */ | |
12bd6957 | 6218 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6219 | lm != NULL; |
6220 | lm = lm->next, lp++) | |
8c37241b JJ |
6221 | { |
6222 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6223 | && lm->count != 0 |
dbc88fc1 AM |
6224 | && (lm->sections[lm->count - 1]->vma |
6225 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
66631823 | 6226 | ? lm->sections[lm->count - 1]->size / opb |
dbc88fc1 | 6227 | : 0)) > start |
f2731e0c | 6228 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6229 | break; |
6230 | } | |
f2731e0c | 6231 | |
01f7e10c | 6232 | if (lm != NULL) |
129af99f | 6233 | { |
01f7e10c AM |
6234 | /* Find the section starting the RELRO segment. */ |
6235 | for (i = 0; i < lm->count; i++) | |
6236 | { | |
6237 | asection *s = lm->sections[i]; | |
6238 | if (s->vma >= start | |
6239 | && s->vma < end | |
6240 | && s->size != 0) | |
6241 | break; | |
6242 | } | |
6243 | ||
6244 | if (i < lm->count) | |
6245 | { | |
502794d4 CE |
6246 | p->p_vaddr = lm->sections[i]->vma * opb; |
6247 | p->p_paddr = lm->sections[i]->lma * opb; | |
01f7e10c | 6248 | p->p_offset = lm->sections[i]->filepos; |
66631823 | 6249 | p->p_memsz = end * opb - p->p_vaddr; |
01f7e10c AM |
6250 | p->p_filesz = p->p_memsz; |
6251 | ||
6252 | /* The RELRO segment typically ends a few bytes | |
6253 | into .got.plt but other layouts are possible. | |
6254 | In cases where the end does not match any | |
6255 | loaded section (for instance is in file | |
6256 | padding), trim p_filesz back to correspond to | |
6257 | the end of loaded section contents. */ | |
6258 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6259 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6260 | ||
6261 | /* Preserve the alignment and flags if they are | |
6262 | valid. The gold linker generates RW/4 for | |
6263 | the PT_GNU_RELRO section. It is better for | |
6264 | objcopy/strip to honor these attributes | |
6265 | otherwise gdb will choke when using separate | |
6266 | debug files. */ | |
6267 | if (!m->p_align_valid) | |
6268 | p->p_align = 1; | |
6269 | if (!m->p_flags_valid) | |
6270 | p->p_flags = PF_R; | |
6271 | ok = TRUE; | |
6272 | } | |
129af99f | 6273 | } |
b84a33b5 | 6274 | } |
01f7e10c AM |
6275 | if (link_info != NULL) |
6276 | BFD_ASSERT (ok); | |
6277 | if (!ok) | |
6278 | memset (p, 0, sizeof *p); | |
129af99f | 6279 | } |
04c3a755 NS |
6280 | else if (p->p_type == PT_GNU_STACK) |
6281 | { | |
6282 | if (m->p_size_valid) | |
6283 | p->p_memsz = m->p_size; | |
6284 | } | |
129af99f AS |
6285 | else if (m->count != 0) |
6286 | { | |
e06efbf1 | 6287 | unsigned int i; |
1a9ccd70 | 6288 | |
129af99f AS |
6289 | if (p->p_type != PT_LOAD |
6290 | && (p->p_type != PT_NOTE | |
6291 | || bfd_get_format (abfd) != bfd_core)) | |
6292 | { | |
1a9ccd70 NC |
6293 | /* A user specified segment layout may include a PHDR |
6294 | segment that overlaps with a LOAD segment... */ | |
6295 | if (p->p_type == PT_PHDR) | |
6296 | { | |
6297 | m->count = 0; | |
6298 | continue; | |
6299 | } | |
6300 | ||
c86934ce NC |
6301 | if (m->includes_filehdr || m->includes_phdrs) |
6302 | { | |
b1fa9dd6 | 6303 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6304 | _bfd_error_handler |
871b3ab2 | 6305 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6306 | "and/or program header"), |
6307 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6308 | return FALSE; |
6309 | } | |
129af99f | 6310 | |
86b2281f | 6311 | p->p_filesz = 0; |
129af99f | 6312 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6313 | for (i = m->count; i-- != 0;) |
6314 | { | |
6315 | asection *sect = m->sections[i]; | |
6316 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6317 | if (hdr->sh_type != SHT_NOBITS) | |
6318 | { | |
6319 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6320 | + hdr->sh_size); | |
6321 | break; | |
6322 | } | |
6323 | } | |
129af99f AS |
6324 | } |
6325 | } | |
252b5132 RH |
6326 | } |
6327 | ||
b34976b6 | 6328 | return TRUE; |
252b5132 RH |
6329 | } |
6330 | ||
6a40cf0c NC |
6331 | static elf_section_list * |
6332 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6333 | { | |
6334 | for (;list != NULL; list = list->next) | |
6335 | if (list->ndx == i) | |
6336 | break; | |
6337 | return list; | |
6338 | } | |
6339 | ||
252b5132 RH |
6340 | /* Work out the file positions of all the sections. This is called by |
6341 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6342 | VMAs must be known before this is called. | |
6343 | ||
e0638f70 | 6344 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6345 | "side-channel" data attached to a section to which they apply, and those that |
6346 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6347 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6348 | here, unless they form part of the loadable image. Reloc sections not | |
6349 | assigned here (and compressed debugging sections and CTF sections which | |
6350 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6351 | assign_file_positions_for_relocs. |
252b5132 RH |
6352 | |
6353 | We also don't set the positions of the .symtab and .strtab here. */ | |
6354 | ||
b34976b6 | 6355 | static bfd_boolean |
c84fca4d AO |
6356 | assign_file_positions_except_relocs (bfd *abfd, |
6357 | struct bfd_link_info *link_info) | |
252b5132 | 6358 | { |
5c182d5f AM |
6359 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6360 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6361 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6362 | unsigned int alloc; |
252b5132 RH |
6363 | |
6364 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6365 | && bfd_get_format (abfd) != bfd_core) | |
6366 | { | |
5c182d5f AM |
6367 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6368 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6369 | Elf_Internal_Shdr **hdrpp; |
6370 | unsigned int i; | |
a485e98e | 6371 | file_ptr off; |
252b5132 RH |
6372 | |
6373 | /* Start after the ELF header. */ | |
6374 | off = i_ehdrp->e_ehsize; | |
6375 | ||
6376 | /* We are not creating an executable, which means that we are | |
6377 | not creating a program header, and that the actual order of | |
6378 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6379 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6380 | { |
6381 | Elf_Internal_Shdr *hdr; | |
6382 | ||
6383 | hdr = *hdrpp; | |
e0638f70 AM |
6384 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6385 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6386 | /* Do not assign offsets for these sections yet: we don't know |
6387 | their sizes. */ | |
0ce398f1 | 6388 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6389 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6390 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6391 | && abfd->is_linker_output))) | |
12bd6957 | 6392 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6393 | || (elf_symtab_shndx_list (abfd) != NULL |
6394 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6395 | || i == elf_strtab_sec (abfd) |
6396 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6397 | { |
6398 | hdr->sh_offset = -1; | |
252b5132 | 6399 | } |
9ad5cbcf | 6400 | else |
b34976b6 | 6401 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6402 | } |
a485e98e AM |
6403 | |
6404 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6405 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6406 | } |
6407 | else | |
6408 | { | |
252b5132 | 6409 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6410 | assignment of sections to segments. */ |
f3520d2f AM |
6411 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6412 | return FALSE; | |
6413 | ||
6414 | /* And for non-load sections. */ | |
6415 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6416 | return FALSE; | |
6d6c25c8 | 6417 | } |
f3520d2f | 6418 | |
6d6c25c8 AM |
6419 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
6420 | return FALSE; | |
1a9ccd70 | 6421 | |
6d6c25c8 AM |
6422 | /* Write out the program headers. */ |
6423 | alloc = i_ehdrp->e_phnum; | |
6424 | if (alloc != 0) | |
6425 | { | |
30fe1832 | 6426 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 NC |
6427 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6428 | return FALSE; | |
252b5132 RH |
6429 | } |
6430 | ||
b34976b6 | 6431 | return TRUE; |
252b5132 RH |
6432 | } |
6433 | ||
ed7e9d0b AM |
6434 | bfd_boolean |
6435 | _bfd_elf_init_file_header (bfd *abfd, | |
6436 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6437 | { |
3d540e93 | 6438 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6439 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6440 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6441 | |
6442 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6443 | |
2b0f7ef9 | 6444 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6445 | if (shstrtab == NULL) |
b34976b6 | 6446 | return FALSE; |
252b5132 RH |
6447 | |
6448 | elf_shstrtab (abfd) = shstrtab; | |
6449 | ||
6450 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6451 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6452 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6453 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6454 | ||
6455 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6456 | i_ehdrp->e_ident[EI_DATA] = | |
6457 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6458 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6459 | ||
252b5132 RH |
6460 | if ((abfd->flags & DYNAMIC) != 0) |
6461 | i_ehdrp->e_type = ET_DYN; | |
6462 | else if ((abfd->flags & EXEC_P) != 0) | |
6463 | i_ehdrp->e_type = ET_EXEC; | |
6464 | else if (bfd_get_format (abfd) == bfd_core) | |
6465 | i_ehdrp->e_type = ET_CORE; | |
6466 | else | |
6467 | i_ehdrp->e_type = ET_REL; | |
6468 | ||
6469 | switch (bfd_get_arch (abfd)) | |
6470 | { | |
6471 | case bfd_arch_unknown: | |
6472 | i_ehdrp->e_machine = EM_NONE; | |
6473 | break; | |
aa4f99bb AO |
6474 | |
6475 | /* There used to be a long list of cases here, each one setting | |
6476 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6477 | in the corresponding bfd definition. To avoid duplication, | |
6478 | the switch was removed. Machines that need special handling | |
6479 | can generally do it in elf_backend_final_write_processing(), | |
6480 | unless they need the information earlier than the final write. | |
6481 | Such need can generally be supplied by replacing the tests for | |
6482 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6483 | default: |
9c5bfbb7 AM |
6484 | i_ehdrp->e_machine = bed->elf_machine_code; |
6485 | } | |
aa4f99bb | 6486 | |
252b5132 RH |
6487 | i_ehdrp->e_version = bed->s->ev_current; |
6488 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6489 | ||
c044fabd | 6490 | /* No program header, for now. */ |
252b5132 RH |
6491 | i_ehdrp->e_phoff = 0; |
6492 | i_ehdrp->e_phentsize = 0; | |
6493 | i_ehdrp->e_phnum = 0; | |
6494 | ||
c044fabd | 6495 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6496 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6497 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6498 | ||
252b5132 | 6499 | elf_tdata (abfd)->symtab_hdr.sh_name = |
b34976b6 | 6500 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6501 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6502 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6503 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6504 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6505 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6506 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6507 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6508 | return FALSE; |
252b5132 | 6509 | |
b34976b6 | 6510 | return TRUE; |
252b5132 RH |
6511 | } |
6512 | ||
6d6c25c8 AM |
6513 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6514 | ||
6515 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6516 | ascending order, as per the ELF spec. But this breaks some programs, | |
6517 | including the Linux kernel. But really either the spec should be | |
6518 | changed or the programs updated. */ | |
6519 | ||
6520 | bfd_boolean | |
6521 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) | |
6522 | { | |
6523 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6524 | { | |
6525 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6526 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6527 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6528 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6529 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6530 | ||
6531 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6532 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6533 | for (; segment < end_segment; segment++) | |
6534 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6535 | p_vaddr = segment->p_vaddr; | |
6536 | ||
6537 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6538 | segments is non-zero. */ | |
6539 | if (p_vaddr) | |
6540 | i_ehdrp->e_type = ET_EXEC; | |
6541 | } | |
6542 | return TRUE; | |
6543 | } | |
6544 | ||
252b5132 | 6545 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6546 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6547 | |
0ce398f1 L |
6548 | static bfd_boolean |
6549 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6550 | { |
6551 | file_ptr off; | |
e06efbf1 | 6552 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6553 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6554 | Elf_Internal_Ehdr *i_ehdrp; |
6555 | const struct elf_backend_data *bed; | |
252b5132 | 6556 | |
12bd6957 | 6557 | off = elf_next_file_pos (abfd); |
252b5132 | 6558 | |
e06efbf1 L |
6559 | shdrpp = elf_elfsections (abfd); |
6560 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6561 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6562 | { |
252b5132 | 6563 | shdrp = *shdrpp; |
0ce398f1 L |
6564 | if (shdrp->sh_offset == -1) |
6565 | { | |
3e19fb8f | 6566 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6567 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6568 | || shdrp->sh_type == SHT_RELA); | |
1ff6de03 | 6569 | bfd_boolean is_ctf = sec && bfd_section_is_ctf (sec); |
0ce398f1 | 6570 | if (is_rel |
1ff6de03 | 6571 | || is_ctf |
3e19fb8f | 6572 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6573 | { |
1ff6de03 | 6574 | if (!is_rel && !is_ctf) |
0ce398f1 | 6575 | { |
3e19fb8f L |
6576 | const char *name = sec->name; |
6577 | struct bfd_elf_section_data *d; | |
6578 | ||
0ce398f1 | 6579 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6580 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6581 | shdrp->contents)) |
6582 | return FALSE; | |
3e19fb8f L |
6583 | |
6584 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6585 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6586 | { | |
6587 | /* If section is compressed with zlib-gnu, convert | |
6588 | section name from .debug_* to .zdebug_*. */ | |
6589 | char *new_name | |
6590 | = convert_debug_to_zdebug (abfd, name); | |
6591 | if (new_name == NULL) | |
6592 | return FALSE; | |
6593 | name = new_name; | |
6594 | } | |
dd905818 | 6595 | /* Add section name to section name section. */ |
3e19fb8f L |
6596 | if (shdrp->sh_name != (unsigned int) -1) |
6597 | abort (); | |
6598 | shdrp->sh_name | |
6599 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6600 | name, FALSE); | |
6601 | d = elf_section_data (sec); | |
6602 | ||
dd905818 | 6603 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6604 | if (d->rel.hdr |
6605 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6606 | d->rel.hdr, | |
6607 | name, FALSE)) | |
6608 | return FALSE; | |
6609 | if (d->rela.hdr | |
6610 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6611 | d->rela.hdr, | |
91cb26da | 6612 | name, TRUE)) |
3e19fb8f L |
6613 | return FALSE; |
6614 | ||
0ce398f1 | 6615 | /* Update section size and contents. */ |
3e19fb8f L |
6616 | shdrp->sh_size = sec->size; |
6617 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6618 | shdrp->bfd_section->contents = NULL; |
6619 | } | |
1ff6de03 NA |
6620 | else if (is_ctf) |
6621 | { | |
6622 | /* Update section size and contents. */ | |
6623 | shdrp->sh_size = sec->size; | |
6624 | shdrp->contents = sec->contents; | |
6625 | } | |
6626 | ||
0ce398f1 L |
6627 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6628 | off, | |
6629 | TRUE); | |
6630 | } | |
6631 | } | |
252b5132 RH |
6632 | } |
6633 | ||
3e19fb8f L |
6634 | /* Place section name section after DWARF debug sections have been |
6635 | compressed. */ | |
6636 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6637 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6638 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6639 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6640 | ||
6641 | /* Place the section headers. */ | |
a485e98e AM |
6642 | i_ehdrp = elf_elfheader (abfd); |
6643 | bed = get_elf_backend_data (abfd); | |
6644 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6645 | i_ehdrp->e_shoff = off; | |
6646 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6647 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6648 | |
6649 | return TRUE; | |
252b5132 RH |
6650 | } |
6651 | ||
b34976b6 | 6652 | bfd_boolean |
217aa764 | 6653 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6654 | { |
9c5bfbb7 | 6655 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6656 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6657 | bfd_boolean failed; |
9ad5cbcf | 6658 | unsigned int count, num_sec; |
30e8ee25 | 6659 | struct elf_obj_tdata *t; |
252b5132 RH |
6660 | |
6661 | if (! abfd->output_has_begun | |
217aa764 | 6662 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6663 | return FALSE; |
db727370 JL |
6664 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6665 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6666 | sections, and modification of existing section sizes was restricted. | |
6667 | This means the ELF header, program headers and section headers can't have | |
6668 | changed. | |
6669 | If the contents of any sections has been modified, then those changes have | |
6670 | already been written to the BFD. */ | |
6671 | else if (abfd->direction == both_direction) | |
6672 | { | |
6673 | BFD_ASSERT (abfd->output_has_begun); | |
6674 | return TRUE; | |
6675 | } | |
252b5132 RH |
6676 | |
6677 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6678 | |
b34976b6 | 6679 | failed = FALSE; |
252b5132 RH |
6680 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6681 | if (failed) | |
b34976b6 | 6682 | return FALSE; |
252b5132 | 6683 | |
0ce398f1 L |
6684 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6685 | return FALSE; | |
252b5132 | 6686 | |
c044fabd | 6687 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6688 | num_sec = elf_numsections (abfd); |
6689 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6690 | { |
3e19fb8f L |
6691 | i_shdrp[count]->sh_name |
6692 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6693 | i_shdrp[count]->sh_name); | |
252b5132 | 6694 | if (bed->elf_backend_section_processing) |
75506100 MR |
6695 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6696 | return FALSE; | |
252b5132 RH |
6697 | if (i_shdrp[count]->contents) |
6698 | { | |
dc810e39 AM |
6699 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6700 | ||
252b5132 | 6701 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6702 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6703 | return FALSE; |
252b5132 RH |
6704 | } |
6705 | } | |
6706 | ||
6707 | /* Write out the section header names. */ | |
30e8ee25 | 6708 | t = elf_tdata (abfd); |
26ae6d5e | 6709 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6710 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6711 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6712 | return FALSE; |
252b5132 | 6713 | |
cc364be6 AM |
6714 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
6715 | return FALSE; | |
252b5132 | 6716 | |
ff59fc36 RM |
6717 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6718 | return FALSE; | |
6719 | ||
6720 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6721 | if (t->o->build_id.after_write_object_contents != NULL) |
6722 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6723 | |
6724 | return TRUE; | |
252b5132 RH |
6725 | } |
6726 | ||
b34976b6 | 6727 | bfd_boolean |
217aa764 | 6728 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6729 | { |
c044fabd | 6730 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6731 | return _bfd_elf_write_object_contents (abfd); |
6732 | } | |
c044fabd KH |
6733 | |
6734 | /* Given a section, search the header to find them. */ | |
6735 | ||
cb33740c | 6736 | unsigned int |
198beae2 | 6737 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6738 | { |
9c5bfbb7 | 6739 | const struct elf_backend_data *bed; |
91d6fa6a | 6740 | unsigned int sec_index; |
252b5132 | 6741 | |
9ad5cbcf AM |
6742 | if (elf_section_data (asect) != NULL |
6743 | && elf_section_data (asect)->this_idx != 0) | |
6744 | return elf_section_data (asect)->this_idx; | |
6745 | ||
6746 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6747 | sec_index = SHN_ABS; |
af746e92 | 6748 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6749 | sec_index = SHN_COMMON; |
af746e92 | 6750 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6751 | sec_index = SHN_UNDEF; |
af746e92 | 6752 | else |
91d6fa6a | 6753 | sec_index = SHN_BAD; |
252b5132 | 6754 | |
af746e92 | 6755 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6756 | if (bed->elf_backend_section_from_bfd_section) |
6757 | { | |
91d6fa6a | 6758 | int retval = sec_index; |
9ad5cbcf | 6759 | |
af746e92 AM |
6760 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6761 | return retval; | |
252b5132 RH |
6762 | } |
6763 | ||
91d6fa6a | 6764 | if (sec_index == SHN_BAD) |
af746e92 | 6765 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6766 | |
91d6fa6a | 6767 | return sec_index; |
252b5132 RH |
6768 | } |
6769 | ||
6770 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6771 | on error. */ | |
6772 | ||
6773 | int | |
217aa764 | 6774 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6775 | { |
6776 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6777 | int idx; | |
6778 | flagword flags = asym_ptr->flags; | |
6779 | ||
6780 | /* When gas creates relocations against local labels, it creates its | |
6781 | own symbol for the section, but does put the symbol into the | |
6782 | symbol chain, so udata is 0. When the linker is generating | |
6783 | relocatable output, this section symbol may be for one of the | |
6784 | input sections rather than the output section. */ | |
6785 | if (asym_ptr->udata.i == 0 | |
6786 | && (flags & BSF_SECTION_SYM) | |
6787 | && asym_ptr->section) | |
6788 | { | |
5372391b | 6789 | asection *sec; |
252b5132 RH |
6790 | int indx; |
6791 | ||
5372391b AM |
6792 | sec = asym_ptr->section; |
6793 | if (sec->owner != abfd && sec->output_section != NULL) | |
6794 | sec = sec->output_section; | |
6795 | if (sec->owner == abfd | |
6796 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6797 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6798 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6799 | } | |
6800 | ||
6801 | idx = asym_ptr->udata.i; | |
6802 | ||
6803 | if (idx == 0) | |
6804 | { | |
6805 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6806 | which is used in a relocation entry. */ |
4eca0228 | 6807 | _bfd_error_handler |
695344c0 | 6808 | /* xgettext:c-format */ |
871b3ab2 | 6809 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6810 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6811 | bfd_set_error (bfd_error_no_symbols); |
6812 | return -1; | |
6813 | } | |
6814 | ||
6815 | #if DEBUG & 4 | |
6816 | { | |
6817 | fprintf (stderr, | |
cd9af601 AM |
6818 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6819 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6820 | fflush (stderr); |
6821 | } | |
6822 | #endif | |
6823 | ||
6824 | return idx; | |
6825 | } | |
6826 | ||
84d1d650 | 6827 | /* Rewrite program header information. */ |
252b5132 | 6828 | |
b34976b6 | 6829 | static bfd_boolean |
84d1d650 | 6830 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6831 | { |
b34976b6 AM |
6832 | Elf_Internal_Ehdr *iehdr; |
6833 | struct elf_segment_map *map; | |
6834 | struct elf_segment_map *map_first; | |
6835 | struct elf_segment_map **pointer_to_map; | |
6836 | Elf_Internal_Phdr *segment; | |
6837 | asection *section; | |
6838 | unsigned int i; | |
6839 | unsigned int num_segments; | |
6840 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6841 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6842 | bfd_vma maxpagesize; |
6843 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6844 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6845 | const struct elf_backend_data *bed; |
502794d4 | 6846 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
bc67d8a6 | 6847 | |
caf47ea6 | 6848 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6849 | iehdr = elf_elfheader (ibfd); |
6850 | ||
bc67d8a6 | 6851 | map_first = NULL; |
c044fabd | 6852 | pointer_to_map = &map_first; |
252b5132 RH |
6853 | |
6854 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6855 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6856 | ||
6857 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6858 | #define SEGMENT_END(segment, start) \ |
6859 | (start + (segment->p_memsz > segment->p_filesz \ | |
6860 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6861 | |
eecdbe52 JJ |
6862 | #define SECTION_SIZE(section, segment) \ |
6863 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6864 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6865 | ? section->size : 0) |
eecdbe52 | 6866 | |
b34976b6 | 6867 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6868 | the given segment. VMA addresses are compared. */ |
502794d4 CE |
6869 | #define IS_CONTAINED_BY_VMA(section, segment, opb) \ |
6870 | (section->vma * (opb) >= segment->p_vaddr \ | |
6871 | && (section->vma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6872 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6873 | |
b34976b6 | 6874 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6875 | the given segment. LMA addresses are compared. */ |
502794d4 CE |
6876 | #define IS_CONTAINED_BY_LMA(section, segment, base, opb) \ |
6877 | (section->lma * (opb) >= base \ | |
6878 | && (section->lma + SECTION_SIZE (section, segment) / (opb) >= section->lma) \ | |
6879 | && (section->lma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6880 | <= SEGMENT_END (segment, base))) |
252b5132 | 6881 | |
0efc80c8 L |
6882 | /* Handle PT_NOTE segment. */ |
6883 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6884 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6885 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6886 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6887 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6888 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6889 | |
0efc80c8 L |
6890 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6891 | etc. */ | |
6892 | #define IS_COREFILE_NOTE(p, s) \ | |
6893 | (IS_NOTE (p, s) \ | |
6894 | && bfd_get_format (ibfd) == bfd_core \ | |
6895 | && s->vma == 0 \ | |
6896 | && s->lma == 0) | |
6897 | ||
252b5132 RH |
6898 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6899 | linker, which generates a PT_INTERP section with p_vaddr and | |
6900 | p_memsz set to 0. */ | |
aecc8f8a AM |
6901 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6902 | (p->p_vaddr == 0 \ | |
6903 | && p->p_paddr == 0 \ | |
6904 | && p->p_memsz == 0 \ | |
6905 | && p->p_filesz > 0 \ | |
6906 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6907 | && s->size > 0 \ |
aecc8f8a | 6908 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6909 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6910 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6911 | |
bc67d8a6 NC |
6912 | /* Decide if the given section should be included in the given segment. |
6913 | A section will be included if: | |
f5ffc919 | 6914 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6915 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6916 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6917 | segment. |
bc67d8a6 | 6918 | 3. There is an output section associated with it, |
eecdbe52 | 6919 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6920 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6921 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6922 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6923 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6924 | (with the possible exception of .dynamic). */ |
502794d4 | 6925 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed, opb) \ |
2b05f1b7 | 6926 | ((((segment->p_paddr \ |
502794d4 CE |
6927 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr, opb) \ |
6928 | : IS_CONTAINED_BY_VMA (section, segment, opb)) \ | |
2b05f1b7 | 6929 | && (section->flags & SEC_ALLOC) != 0) \ |
0efc80c8 | 6930 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6931 | && segment->p_type != PT_GNU_STACK \ |
6932 | && (segment->p_type != PT_TLS \ | |
6933 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6934 | && (segment->p_type == PT_LOAD \ | |
6935 | || segment->p_type == PT_TLS \ | |
6936 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6937 | && (segment->p_type != PT_DYNAMIC \ | |
6938 | || SECTION_SIZE (section, segment) > 0 \ | |
6939 | || (segment->p_paddr \ | |
502794d4 CE |
6940 | ? segment->p_paddr != section->lma * (opb) \ |
6941 | : segment->p_vaddr != section->vma * (opb)) \ | |
fd361982 | 6942 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6943 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6944 | |
9f17e2a6 L |
6945 | /* If the output section of a section in the input segment is NULL, |
6946 | it is removed from the corresponding output segment. */ | |
502794d4 CE |
6947 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed, opb) \ |
6948 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb) \ | |
9f17e2a6 L |
6949 | && section->output_section != NULL) |
6950 | ||
b34976b6 | 6951 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6952 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6953 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6954 | ||
6955 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6956 | their VMA address ranges and their LMA address ranges overlap. | |
6957 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6958 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6959 | to the same VMA range, but with the .data section mapped to a different | |
6960 | LMA. */ | |
aecc8f8a | 6961 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6962 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6963 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6964 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6965 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6966 | |
6967 | /* Initialise the segment mark field. */ | |
6968 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6969 | section->segment_mark = FALSE; |
bc67d8a6 | 6970 | |
5c44b38e AM |
6971 | /* The Solaris linker creates program headers in which all the |
6972 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6973 | file, we get confused. Check for this case, and if we find it | |
6974 | don't set the p_paddr_valid fields. */ | |
6975 | p_paddr_valid = FALSE; | |
6976 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6977 | i < num_segments; | |
6978 | i++, segment++) | |
6979 | if (segment->p_paddr != 0) | |
6980 | { | |
6981 | p_paddr_valid = TRUE; | |
6982 | break; | |
6983 | } | |
6984 | ||
252b5132 | 6985 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6986 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6987 | in the loadable segments. These can be created by weird |
aecc8f8a | 6988 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6989 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6990 | i < num_segments; | |
c044fabd | 6991 | i++, segment++) |
252b5132 | 6992 | { |
252b5132 | 6993 | unsigned int j; |
c044fabd | 6994 | Elf_Internal_Phdr *segment2; |
252b5132 | 6995 | |
aecc8f8a AM |
6996 | if (segment->p_type == PT_INTERP) |
6997 | for (section = ibfd->sections; section; section = section->next) | |
6998 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6999 | { | |
7000 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 7001 | assignment code will work. */ |
502794d4 | 7002 | segment->p_vaddr = section->vma * opb; |
aecc8f8a AM |
7003 | break; |
7004 | } | |
7005 | ||
bc67d8a6 | 7006 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
7007 | { |
7008 | /* Remove PT_GNU_RELRO segment. */ | |
7009 | if (segment->p_type == PT_GNU_RELRO) | |
7010 | segment->p_type = PT_NULL; | |
7011 | continue; | |
7012 | } | |
c044fabd | 7013 | |
bc67d8a6 | 7014 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 7015 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
7016 | { |
7017 | bfd_signed_vma extra_length; | |
c044fabd | 7018 | |
bc67d8a6 | 7019 | if (segment2->p_type != PT_LOAD |
0067a569 | 7020 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 7021 | continue; |
c044fabd | 7022 | |
bc67d8a6 NC |
7023 | /* Merge the two segments together. */ |
7024 | if (segment2->p_vaddr < segment->p_vaddr) | |
7025 | { | |
c044fabd | 7026 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 7027 | SEGMENT. */ |
0067a569 AM |
7028 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
7029 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 7030 | |
bc67d8a6 NC |
7031 | if (extra_length > 0) |
7032 | { | |
0067a569 | 7033 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
7034 | segment2->p_filesz += extra_length; |
7035 | } | |
c044fabd | 7036 | |
bc67d8a6 | 7037 | segment->p_type = PT_NULL; |
c044fabd | 7038 | |
bc67d8a6 NC |
7039 | /* Since we have deleted P we must restart the outer loop. */ |
7040 | i = 0; | |
7041 | segment = elf_tdata (ibfd)->phdr; | |
7042 | break; | |
7043 | } | |
7044 | else | |
7045 | { | |
c044fabd | 7046 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 7047 | SEGMENT2. */ |
0067a569 AM |
7048 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
7049 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 7050 | |
bc67d8a6 NC |
7051 | if (extra_length > 0) |
7052 | { | |
0067a569 | 7053 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7054 | segment->p_filesz += extra_length; |
7055 | } | |
c044fabd | 7056 | |
bc67d8a6 NC |
7057 | segment2->p_type = PT_NULL; |
7058 | } | |
7059 | } | |
7060 | } | |
c044fabd | 7061 | |
bc67d8a6 NC |
7062 | /* The second scan attempts to assign sections to segments. */ |
7063 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7064 | i < num_segments; | |
0067a569 | 7065 | i++, segment++) |
bc67d8a6 | 7066 | { |
0067a569 AM |
7067 | unsigned int section_count; |
7068 | asection **sections; | |
7069 | asection *output_section; | |
7070 | unsigned int isec; | |
9933dc52 AM |
7071 | asection *matching_lma; |
7072 | asection *suggested_lma; | |
0067a569 | 7073 | unsigned int j; |
446f7ed5 | 7074 | size_t amt; |
0067a569 | 7075 | asection *first_section; |
bc67d8a6 NC |
7076 | |
7077 | if (segment->p_type == PT_NULL) | |
7078 | continue; | |
c044fabd | 7079 | |
9f17e2a6 | 7080 | first_section = NULL; |
bc67d8a6 | 7081 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7082 | for (section = ibfd->sections, section_count = 0; |
7083 | section != NULL; | |
7084 | section = section->next) | |
9f17e2a6 L |
7085 | { |
7086 | /* Find the first section in the input segment, which may be | |
7087 | removed from the corresponding output segment. */ | |
502794d4 | 7088 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb)) |
9f17e2a6 L |
7089 | { |
7090 | if (first_section == NULL) | |
7091 | first_section = section; | |
7092 | if (section->output_section != NULL) | |
7093 | ++section_count; | |
7094 | } | |
7095 | } | |
811072d8 | 7096 | |
b5f852ea NC |
7097 | /* Allocate a segment map big enough to contain |
7098 | all of the sections we have selected. */ | |
00bee008 | 7099 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7100 | amt += section_count * sizeof (asection *); |
a50b1753 | 7101 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7102 | if (map == NULL) |
b34976b6 | 7103 | return FALSE; |
252b5132 RH |
7104 | |
7105 | /* Initialise the fields of the segment map. Default to | |
7106 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7107 | map->next = NULL; |
7108 | map->p_type = segment->p_type; | |
7109 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7110 | map->p_flags_valid = 1; |
55d55ac7 | 7111 | |
9f17e2a6 L |
7112 | /* If the first section in the input segment is removed, there is |
7113 | no need to preserve segment physical address in the corresponding | |
7114 | output segment. */ | |
945c025a | 7115 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7116 | { |
7117 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7118 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7119 | } |
252b5132 RH |
7120 | |
7121 | /* Determine if this segment contains the ELF file header | |
7122 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7123 | map->includes_filehdr = (segment->p_offset == 0 |
7124 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7125 | map->includes_phdrs = 0; |
252b5132 | 7126 | |
0067a569 | 7127 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7128 | { |
bc67d8a6 NC |
7129 | map->includes_phdrs = |
7130 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7131 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7132 | >= ((bfd_vma) iehdr->e_phoff |
7133 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7134 | |
bc67d8a6 | 7135 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 7136 | phdr_included = TRUE; |
252b5132 RH |
7137 | } |
7138 | ||
bc67d8a6 | 7139 | if (section_count == 0) |
252b5132 RH |
7140 | { |
7141 | /* Special segments, such as the PT_PHDR segment, may contain | |
7142 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7143 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7144 | a warning is produced. |
f98450c6 NC |
7145 | There is however the valid use case of embedded systems which |
7146 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7147 | flash memory with zeros. No warning is shown for that case. */ | |
7148 | if (segment->p_type == PT_LOAD | |
7149 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7150 | /* xgettext:c-format */ | |
9793eb77 AM |
7151 | _bfd_error_handler |
7152 | (_("%pB: warning: empty loadable segment detected" | |
7153 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7154 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7155 | |
502794d4 | 7156 | map->p_vaddr_offset = segment->p_vaddr / opb; |
bc67d8a6 | 7157 | map->count = 0; |
c044fabd KH |
7158 | *pointer_to_map = map; |
7159 | pointer_to_map = &map->next; | |
252b5132 RH |
7160 | |
7161 | continue; | |
7162 | } | |
7163 | ||
7164 | /* Now scan the sections in the input BFD again and attempt | |
7165 | to add their corresponding output sections to the segment map. | |
7166 | The problem here is how to handle an output section which has | |
7167 | been moved (ie had its LMA changed). There are four possibilities: | |
7168 | ||
7169 | 1. None of the sections have been moved. | |
7170 | In this case we can continue to use the segment LMA from the | |
7171 | input BFD. | |
7172 | ||
7173 | 2. All of the sections have been moved by the same amount. | |
7174 | In this case we can change the segment's LMA to match the LMA | |
7175 | of the first section. | |
7176 | ||
7177 | 3. Some of the sections have been moved, others have not. | |
7178 | In this case those sections which have not been moved can be | |
7179 | placed in the current segment which will have to have its size, | |
7180 | and possibly its LMA changed, and a new segment or segments will | |
7181 | have to be created to contain the other sections. | |
7182 | ||
b5f852ea | 7183 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7184 | In this case we can change the segment's LMA to match the LMA |
7185 | of the first section and we will have to create a new segment | |
7186 | or segments to contain the other sections. | |
7187 | ||
7188 | In order to save time, we allocate an array to hold the section | |
7189 | pointers that we are interested in. As these sections get assigned | |
7190 | to a segment, they are removed from this array. */ | |
7191 | ||
446f7ed5 AM |
7192 | amt = section_count * sizeof (asection *); |
7193 | sections = (asection **) bfd_malloc (amt); | |
252b5132 | 7194 | if (sections == NULL) |
b34976b6 | 7195 | return FALSE; |
252b5132 RH |
7196 | |
7197 | /* Step One: Scan for segment vs section LMA conflicts. | |
7198 | Also add the sections to the section array allocated above. | |
7199 | Also add the sections to the current segment. In the common | |
7200 | case, where the sections have not been moved, this means that | |
7201 | we have completely filled the segment, and there is nothing | |
7202 | more to do. */ | |
252b5132 | 7203 | isec = 0; |
9933dc52 AM |
7204 | matching_lma = NULL; |
7205 | suggested_lma = NULL; | |
252b5132 | 7206 | |
461c4b2e | 7207 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7208 | section != NULL; |
7209 | section = section->next) | |
252b5132 | 7210 | { |
502794d4 | 7211 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed, opb)) |
c0f7859b | 7212 | { |
bc67d8a6 NC |
7213 | output_section = section->output_section; |
7214 | ||
0067a569 | 7215 | sections[j++] = section; |
252b5132 RH |
7216 | |
7217 | /* The Solaris native linker always sets p_paddr to 0. | |
7218 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7219 | correct value. Note - some backends require that |
7220 | p_paddr be left as zero. */ | |
5c44b38e | 7221 | if (!p_paddr_valid |
4455705d | 7222 | && segment->p_vaddr != 0 |
0067a569 | 7223 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7224 | && isec == 0 |
bc67d8a6 | 7225 | && output_section->lma != 0 |
9933dc52 AM |
7226 | && (align_power (segment->p_vaddr |
7227 | + (map->includes_filehdr | |
7228 | ? iehdr->e_ehsize : 0) | |
7229 | + (map->includes_phdrs | |
7230 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7231 | : 0), | |
66631823 CE |
7232 | output_section->alignment_power * opb) |
7233 | == (output_section->vma * opb))) | |
bc67d8a6 | 7234 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7235 | |
7236 | /* Match up the physical address of the segment with the | |
7237 | LMA address of the output section. */ | |
502794d4 CE |
7238 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7239 | opb) | |
5e8d7549 | 7240 | || IS_COREFILE_NOTE (segment, section) |
0067a569 | 7241 | || (bed->want_p_paddr_set_to_zero |
502794d4 | 7242 | && IS_CONTAINED_BY_VMA (output_section, segment, opb))) |
252b5132 | 7243 | { |
9933dc52 AM |
7244 | if (matching_lma == NULL |
7245 | || output_section->lma < matching_lma->lma) | |
7246 | matching_lma = output_section; | |
252b5132 RH |
7247 | |
7248 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7249 | then it does not overlap any other section within that |
252b5132 | 7250 | segment. */ |
0067a569 AM |
7251 | map->sections[isec++] = output_section; |
7252 | } | |
9933dc52 AM |
7253 | else if (suggested_lma == NULL) |
7254 | suggested_lma = output_section; | |
147d51c2 L |
7255 | |
7256 | if (j == section_count) | |
7257 | break; | |
252b5132 RH |
7258 | } |
7259 | } | |
7260 | ||
bc67d8a6 | 7261 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7262 | |
7263 | /* Step Two: Adjust the physical address of the current segment, | |
7264 | if necessary. */ | |
bc67d8a6 | 7265 | if (isec == section_count) |
252b5132 RH |
7266 | { |
7267 | /* All of the sections fitted within the segment as currently | |
7268 | specified. This is the default case. Add the segment to | |
7269 | the list of built segments and carry on to process the next | |
7270 | program header in the input BFD. */ | |
bc67d8a6 | 7271 | map->count = section_count; |
c044fabd KH |
7272 | *pointer_to_map = map; |
7273 | pointer_to_map = &map->next; | |
08a40648 | 7274 | |
5c44b38e | 7275 | if (p_paddr_valid |
30fe1832 AM |
7276 | && !bed->want_p_paddr_set_to_zero) |
7277 | { | |
7278 | bfd_vma hdr_size = 0; | |
7279 | if (map->includes_filehdr) | |
7280 | hdr_size = iehdr->e_ehsize; | |
7281 | if (map->includes_phdrs) | |
7282 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7283 | ||
7284 | /* Account for padding before the first section in the | |
7285 | segment. */ | |
502794d4 CE |
7286 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
7287 | - matching_lma->lma); | |
30fe1832 | 7288 | } |
08a40648 | 7289 | |
252b5132 RH |
7290 | free (sections); |
7291 | continue; | |
7292 | } | |
252b5132 RH |
7293 | else |
7294 | { | |
9933dc52 AM |
7295 | /* Change the current segment's physical address to match |
7296 | the LMA of the first section that fitted, or if no | |
7297 | section fitted, the first section. */ | |
7298 | if (matching_lma == NULL) | |
7299 | matching_lma = suggested_lma; | |
7300 | ||
66631823 | 7301 | map->p_paddr = matching_lma->lma * opb; |
72730e0c | 7302 | |
bc67d8a6 NC |
7303 | /* Offset the segment physical address from the lma |
7304 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7305 | if (map->includes_phdrs) |
010c8431 | 7306 | { |
9933dc52 AM |
7307 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7308 | ||
7309 | /* iehdr->e_phnum is just an estimate of the number | |
7310 | of program headers that we will need. Make a note | |
7311 | here of the number we used and the segment we chose | |
7312 | to hold these headers, so that we can adjust the | |
7313 | offset when we know the correct value. */ | |
7314 | phdr_adjust_num = iehdr->e_phnum; | |
7315 | phdr_adjust_seg = map; | |
010c8431 | 7316 | } |
252b5132 | 7317 | |
9933dc52 | 7318 | if (map->includes_filehdr) |
bc67d8a6 | 7319 | { |
9933dc52 AM |
7320 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7321 | map->p_paddr -= iehdr->e_ehsize; | |
7322 | /* We've subtracted off the size of headers from the | |
7323 | first section lma, but there may have been some | |
7324 | alignment padding before that section too. Try to | |
7325 | account for that by adjusting the segment lma down to | |
7326 | the same alignment. */ | |
7327 | if (segment->p_align != 0 && segment->p_align < align) | |
7328 | align = segment->p_align; | |
66631823 | 7329 | map->p_paddr &= -(align * opb); |
bc67d8a6 | 7330 | } |
252b5132 RH |
7331 | } |
7332 | ||
7333 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7334 | those that fit to the current segment and removing them from the |
252b5132 RH |
7335 | sections array; but making sure not to leave large gaps. Once all |
7336 | possible sections have been assigned to the current segment it is | |
7337 | added to the list of built segments and if sections still remain | |
7338 | to be assigned, a new segment is constructed before repeating | |
7339 | the loop. */ | |
7340 | isec = 0; | |
7341 | do | |
7342 | { | |
bc67d8a6 | 7343 | map->count = 0; |
9933dc52 | 7344 | suggested_lma = NULL; |
252b5132 RH |
7345 | |
7346 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7347 | for (j = 0; j < section_count; j++) |
252b5132 | 7348 | { |
bc67d8a6 | 7349 | section = sections[j]; |
252b5132 | 7350 | |
bc67d8a6 | 7351 | if (section == NULL) |
252b5132 RH |
7352 | continue; |
7353 | ||
bc67d8a6 | 7354 | output_section = section->output_section; |
252b5132 | 7355 | |
bc67d8a6 | 7356 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7357 | |
502794d4 CE |
7358 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7359 | opb) | |
bc67d8a6 | 7360 | || IS_COREFILE_NOTE (segment, section)) |
252b5132 | 7361 | { |
bc67d8a6 | 7362 | if (map->count == 0) |
252b5132 RH |
7363 | { |
7364 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7365 | the beginning of the segment, then something is |
7366 | wrong. */ | |
9933dc52 AM |
7367 | if (align_power (map->p_paddr |
7368 | + (map->includes_filehdr | |
7369 | ? iehdr->e_ehsize : 0) | |
7370 | + (map->includes_phdrs | |
7371 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7372 | : 0), | |
66631823 CE |
7373 | output_section->alignment_power * opb) |
7374 | != output_section->lma * opb) | |
9aea1e31 | 7375 | goto sorry; |
252b5132 RH |
7376 | } |
7377 | else | |
7378 | { | |
0067a569 | 7379 | asection *prev_sec; |
252b5132 | 7380 | |
bc67d8a6 | 7381 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7382 | |
7383 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7384 | and the start of this section is more than |
7385 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7386 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7387 | maxpagesize) |
caf47ea6 | 7388 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7389 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7390 | > output_section->lma)) |
252b5132 | 7391 | { |
9933dc52 AM |
7392 | if (suggested_lma == NULL) |
7393 | suggested_lma = output_section; | |
252b5132 RH |
7394 | |
7395 | continue; | |
7396 | } | |
7397 | } | |
7398 | ||
bc67d8a6 | 7399 | map->sections[map->count++] = output_section; |
252b5132 RH |
7400 | ++isec; |
7401 | sections[j] = NULL; | |
9933dc52 AM |
7402 | if (segment->p_type == PT_LOAD) |
7403 | section->segment_mark = TRUE; | |
0067a569 | 7404 | } |
9933dc52 AM |
7405 | else if (suggested_lma == NULL) |
7406 | suggested_lma = output_section; | |
252b5132 RH |
7407 | } |
7408 | ||
beab4532 NC |
7409 | /* PR 23932. A corrupt input file may contain sections that cannot |
7410 | be assigned to any segment - because for example they have a | |
9984857c NC |
7411 | negative size - or segments that do not contain any sections. |
7412 | But there are also valid reasons why a segment can be empty. | |
7413 | So allow a count of zero. */ | |
252b5132 RH |
7414 | |
7415 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7416 | *pointer_to_map = map; |
7417 | pointer_to_map = &map->next; | |
252b5132 | 7418 | |
bc67d8a6 | 7419 | if (isec < section_count) |
252b5132 RH |
7420 | { |
7421 | /* We still have not allocated all of the sections to | |
7422 | segments. Create a new segment here, initialise it | |
7423 | and carry on looping. */ | |
00bee008 | 7424 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7425 | amt += section_count * sizeof (asection *); |
5964fc3a | 7426 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7427 | if (map == NULL) |
5ed6aba4 NC |
7428 | { |
7429 | free (sections); | |
7430 | return FALSE; | |
7431 | } | |
252b5132 RH |
7432 | |
7433 | /* Initialise the fields of the segment map. Set the physical | |
7434 | physical address to the LMA of the first section that has | |
7435 | not yet been assigned. */ | |
0067a569 AM |
7436 | map->next = NULL; |
7437 | map->p_type = segment->p_type; | |
7438 | map->p_flags = segment->p_flags; | |
7439 | map->p_flags_valid = 1; | |
66631823 | 7440 | map->p_paddr = suggested_lma->lma * opb; |
5c44b38e | 7441 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7442 | map->includes_filehdr = 0; |
0067a569 | 7443 | map->includes_phdrs = 0; |
252b5132 | 7444 | } |
9984857c NC |
7445 | |
7446 | continue; | |
7447 | sorry: | |
7448 | bfd_set_error (bfd_error_sorry); | |
7449 | free (sections); | |
7450 | return FALSE; | |
252b5132 | 7451 | } |
bc67d8a6 | 7452 | while (isec < section_count); |
252b5132 RH |
7453 | |
7454 | free (sections); | |
7455 | } | |
7456 | ||
12bd6957 | 7457 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7458 | |
7459 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7460 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7461 | the offset if necessary. */ |
7462 | if (phdr_adjust_seg != NULL) | |
7463 | { | |
7464 | unsigned int count; | |
c044fabd | 7465 | |
bc67d8a6 | 7466 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7467 | count++; |
252b5132 | 7468 | |
bc67d8a6 NC |
7469 | if (count > phdr_adjust_num) |
7470 | phdr_adjust_seg->p_paddr | |
7471 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7472 | |
7473 | for (map = map_first; map != NULL; map = map->next) | |
7474 | if (map->p_type == PT_PHDR) | |
7475 | { | |
7476 | bfd_vma adjust | |
7477 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7478 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7479 | break; | |
7480 | } | |
bc67d8a6 | 7481 | } |
c044fabd | 7482 | |
bc67d8a6 | 7483 | #undef SEGMENT_END |
eecdbe52 | 7484 | #undef SECTION_SIZE |
bc67d8a6 NC |
7485 | #undef IS_CONTAINED_BY_VMA |
7486 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7487 | #undef IS_NOTE |
252b5132 | 7488 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7489 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7490 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7491 | #undef INCLUDE_SECTION_IN_SEGMENT |
7492 | #undef SEGMENT_AFTER_SEGMENT | |
7493 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7494 | return TRUE; |
252b5132 RH |
7495 | } |
7496 | ||
84d1d650 L |
7497 | /* Copy ELF program header information. */ |
7498 | ||
7499 | static bfd_boolean | |
7500 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7501 | { | |
7502 | Elf_Internal_Ehdr *iehdr; | |
7503 | struct elf_segment_map *map; | |
7504 | struct elf_segment_map *map_first; | |
7505 | struct elf_segment_map **pointer_to_map; | |
7506 | Elf_Internal_Phdr *segment; | |
7507 | unsigned int i; | |
7508 | unsigned int num_segments; | |
7509 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7510 | bfd_boolean p_paddr_valid; |
502794d4 | 7511 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
84d1d650 L |
7512 | |
7513 | iehdr = elf_elfheader (ibfd); | |
7514 | ||
7515 | map_first = NULL; | |
7516 | pointer_to_map = &map_first; | |
7517 | ||
88967714 AM |
7518 | /* If all the segment p_paddr fields are zero, don't set |
7519 | map->p_paddr_valid. */ | |
7520 | p_paddr_valid = FALSE; | |
84d1d650 | 7521 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7522 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7523 | i < num_segments; | |
7524 | i++, segment++) | |
7525 | if (segment->p_paddr != 0) | |
7526 | { | |
7527 | p_paddr_valid = TRUE; | |
7528 | break; | |
7529 | } | |
7530 | ||
84d1d650 L |
7531 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7532 | i < num_segments; | |
7533 | i++, segment++) | |
7534 | { | |
7535 | asection *section; | |
7536 | unsigned int section_count; | |
986f0783 | 7537 | size_t amt; |
84d1d650 | 7538 | Elf_Internal_Shdr *this_hdr; |
53020534 | 7539 | asection *first_section = NULL; |
a76e6f2f | 7540 | asection *lowest_section; |
84d1d650 | 7541 | |
84d1d650 L |
7542 | /* Compute how many sections are in this segment. */ |
7543 | for (section = ibfd->sections, section_count = 0; | |
7544 | section != NULL; | |
7545 | section = section->next) | |
7546 | { | |
7547 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7548 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7549 | { |
a76e6f2f AM |
7550 | if (first_section == NULL) |
7551 | first_section = section; | |
3271a814 NS |
7552 | section_count++; |
7553 | } | |
84d1d650 L |
7554 | } |
7555 | ||
7556 | /* Allocate a segment map big enough to contain | |
7557 | all of the sections we have selected. */ | |
00bee008 | 7558 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
986f0783 | 7559 | amt += section_count * sizeof (asection *); |
a50b1753 | 7560 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7561 | if (map == NULL) |
7562 | return FALSE; | |
7563 | ||
7564 | /* Initialize the fields of the output segment map with the | |
7565 | input segment. */ | |
7566 | map->next = NULL; | |
7567 | map->p_type = segment->p_type; | |
7568 | map->p_flags = segment->p_flags; | |
7569 | map->p_flags_valid = 1; | |
7570 | map->p_paddr = segment->p_paddr; | |
88967714 | 7571 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7572 | map->p_align = segment->p_align; |
7573 | map->p_align_valid = 1; | |
3271a814 | 7574 | map->p_vaddr_offset = 0; |
84d1d650 | 7575 | |
04c3a755 NS |
7576 | if (map->p_type == PT_GNU_RELRO |
7577 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7578 | { |
7579 | /* The PT_GNU_RELRO segment may contain the first a few | |
7580 | bytes in the .got.plt section even if the whole .got.plt | |
7581 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7582 | change the size of the PT_GNU_RELRO segment. |
7583 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7584 | systems. */ | |
9433b9b1 | 7585 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7586 | map->p_size_valid = 1; |
7587 | } | |
7588 | ||
84d1d650 L |
7589 | /* Determine if this segment contains the ELF file header |
7590 | and if it contains the program headers themselves. */ | |
7591 | map->includes_filehdr = (segment->p_offset == 0 | |
7592 | && segment->p_filesz >= iehdr->e_ehsize); | |
7593 | ||
7594 | map->includes_phdrs = 0; | |
7595 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7596 | { | |
7597 | map->includes_phdrs = | |
7598 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7599 | && (segment->p_offset + segment->p_filesz | |
7600 | >= ((bfd_vma) iehdr->e_phoff | |
7601 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7602 | ||
7603 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7604 | phdr_included = TRUE; | |
7605 | } | |
7606 | ||
bbefd0a9 | 7607 | lowest_section = NULL; |
84d1d650 L |
7608 | if (section_count != 0) |
7609 | { | |
7610 | unsigned int isec = 0; | |
7611 | ||
53020534 | 7612 | for (section = first_section; |
84d1d650 L |
7613 | section != NULL; |
7614 | section = section->next) | |
7615 | { | |
7616 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7617 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7618 | { |
7619 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7620 | if ((section->flags & SEC_ALLOC) != 0) |
7621 | { | |
7622 | bfd_vma seg_off; | |
7623 | ||
bbefd0a9 AM |
7624 | if (lowest_section == NULL |
7625 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7626 | lowest_section = section; |
7627 | ||
a76e6f2f AM |
7628 | /* Section lmas are set up from PT_LOAD header |
7629 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7630 | If this header has a p_paddr that disagrees | |
7631 | with the section lma, flag the p_paddr as | |
7632 | invalid. */ | |
7633 | if ((section->flags & SEC_LOAD) != 0) | |
7634 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7635 | else | |
7636 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
502794d4 | 7637 | if (section->lma * opb - segment->p_paddr != seg_off) |
a76e6f2f AM |
7638 | map->p_paddr_valid = FALSE; |
7639 | } | |
53020534 L |
7640 | if (isec == section_count) |
7641 | break; | |
7642 | } | |
84d1d650 L |
7643 | } |
7644 | } | |
7645 | ||
5d695627 | 7646 | if (section_count == 0) |
502794d4 | 7647 | map->p_vaddr_offset = segment->p_vaddr / opb; |
30fe1832 AM |
7648 | else if (map->p_paddr_valid) |
7649 | { | |
7650 | /* Account for padding before the first section in the segment. */ | |
7651 | bfd_vma hdr_size = 0; | |
7652 | if (map->includes_filehdr) | |
7653 | hdr_size = iehdr->e_ehsize; | |
7654 | if (map->includes_phdrs) | |
7655 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7656 | ||
502794d4 | 7657 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
30fe1832 AM |
7658 | - (lowest_section ? lowest_section->lma : 0)); |
7659 | } | |
a76e6f2f | 7660 | |
84d1d650 L |
7661 | map->count = section_count; |
7662 | *pointer_to_map = map; | |
7663 | pointer_to_map = &map->next; | |
7664 | } | |
7665 | ||
12bd6957 | 7666 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7667 | return TRUE; |
7668 | } | |
7669 | ||
7670 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7671 | information. */ | |
7672 | ||
7673 | static bfd_boolean | |
7674 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7675 | { | |
84d1d650 L |
7676 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7677 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7678 | return TRUE; | |
7679 | ||
7680 | if (elf_tdata (ibfd)->phdr == NULL) | |
7681 | return TRUE; | |
7682 | ||
7683 | if (ibfd->xvec == obfd->xvec) | |
7684 | { | |
cb3ff1e5 NC |
7685 | /* Check to see if any sections in the input BFD |
7686 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7687 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7688 | asection *section, *osec; |
7689 | unsigned int i, num_segments; | |
7690 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7691 | const struct elf_backend_data *bed; |
7692 | ||
7693 | bed = get_elf_backend_data (ibfd); | |
7694 | ||
7695 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7696 | if (bed->want_p_paddr_set_to_zero) | |
7697 | goto rewrite; | |
84d1d650 L |
7698 | |
7699 | /* Initialize the segment mark field. */ | |
7700 | for (section = obfd->sections; section != NULL; | |
7701 | section = section->next) | |
7702 | section->segment_mark = FALSE; | |
7703 | ||
7704 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7705 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7706 | i < num_segments; | |
7707 | i++, segment++) | |
7708 | { | |
5f6999aa NC |
7709 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7710 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7711 | which severly confuses things, so always regenerate the segment | |
7712 | map in this case. */ | |
7713 | if (segment->p_paddr == 0 | |
7714 | && segment->p_memsz == 0 | |
7715 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7716 | goto rewrite; |
5f6999aa | 7717 | |
84d1d650 L |
7718 | for (section = ibfd->sections; |
7719 | section != NULL; section = section->next) | |
7720 | { | |
7721 | /* We mark the output section so that we know it comes | |
7722 | from the input BFD. */ | |
7723 | osec = section->output_section; | |
7724 | if (osec) | |
7725 | osec->segment_mark = TRUE; | |
7726 | ||
7727 | /* Check if this section is covered by the segment. */ | |
7728 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7729 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7730 | { |
7731 | /* FIXME: Check if its output section is changed or | |
7732 | removed. What else do we need to check? */ | |
7733 | if (osec == NULL | |
7734 | || section->flags != osec->flags | |
7735 | || section->lma != osec->lma | |
7736 | || section->vma != osec->vma | |
7737 | || section->size != osec->size | |
7738 | || section->rawsize != osec->rawsize | |
7739 | || section->alignment_power != osec->alignment_power) | |
7740 | goto rewrite; | |
7741 | } | |
7742 | } | |
7743 | } | |
7744 | ||
cb3ff1e5 | 7745 | /* Check to see if any output section do not come from the |
84d1d650 L |
7746 | input BFD. */ |
7747 | for (section = obfd->sections; section != NULL; | |
7748 | section = section->next) | |
7749 | { | |
535b785f | 7750 | if (!section->segment_mark) |
84d1d650 L |
7751 | goto rewrite; |
7752 | else | |
7753 | section->segment_mark = FALSE; | |
7754 | } | |
7755 | ||
7756 | return copy_elf_program_header (ibfd, obfd); | |
7757 | } | |
7758 | ||
dc1e8a47 | 7759 | rewrite: |
f1d85785 L |
7760 | if (ibfd->xvec == obfd->xvec) |
7761 | { | |
7762 | /* When rewriting program header, set the output maxpagesize to | |
7763 | the maximum alignment of input PT_LOAD segments. */ | |
7764 | Elf_Internal_Phdr *segment; | |
7765 | unsigned int i; | |
7766 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7767 | bfd_vma maxpagesize = 0; | |
7768 | ||
7769 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7770 | i < num_segments; | |
7771 | i++, segment++) | |
7772 | if (segment->p_type == PT_LOAD | |
7773 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7774 | { |
7775 | /* PR 17512: file: f17299af. */ | |
7776 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7777 | /* xgettext:c-format */ |
2dcf00ce AM |
7778 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7779 | PRIx64 " is too large"), | |
7780 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7781 | else |
7782 | maxpagesize = segment->p_align; | |
7783 | } | |
f1d85785 L |
7784 | |
7785 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7786 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7787 | } | |
7788 | ||
84d1d650 L |
7789 | return rewrite_elf_program_header (ibfd, obfd); |
7790 | } | |
7791 | ||
ccd2ec6a L |
7792 | /* Initialize private output section information from input section. */ |
7793 | ||
7794 | bfd_boolean | |
7795 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7796 | asection *isec, | |
7797 | bfd *obfd, | |
7798 | asection *osec, | |
7799 | struct bfd_link_info *link_info) | |
7800 | ||
7801 | { | |
7802 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7803 | bfd_boolean final_link = (link_info != NULL |
7804 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7805 | |
7806 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7807 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7808 | return TRUE; | |
7809 | ||
ba85c43e NC |
7810 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7811 | ||
8c803a2d AM |
7812 | /* If this is a known ABI section, ELF section type and flags may |
7813 | have been set up when OSEC was created. For normal sections we | |
7814 | allow the user to override the type and flags other than | |
7815 | SHF_MASKOS and SHF_MASKPROC. */ | |
7816 | if (elf_section_type (osec) == SHT_PROGBITS | |
7817 | || elf_section_type (osec) == SHT_NOTE | |
7818 | || elf_section_type (osec) == SHT_NOBITS) | |
7819 | elf_section_type (osec) = SHT_NULL; | |
7820 | /* For objcopy and relocatable link, copy the ELF section type from | |
7821 | the input file if the BFD section flags are the same. (If they | |
7822 | are different the user may be doing something like | |
7823 | "objcopy --set-section-flags .text=alloc,data".) For a final | |
7824 | link allow some flags that the linker clears to differ. */ | |
42bb2e33 | 7825 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7826 | && (osec->flags == isec->flags |
7827 | || (final_link | |
7828 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7829 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7830 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7831 | |
7832 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
8c803a2d AM |
7833 | elf_section_flags (osec) = (elf_section_flags (isec) |
7834 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7835 | |
a91e1603 | 7836 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7837 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7838 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7839 | elf_section_data (osec)->this_hdr.sh_info |
7840 | = elf_section_data (isec)->this_hdr.sh_info; | |
7841 | ||
ccd2ec6a L |
7842 | /* Set things up for objcopy and relocatable link. The output |
7843 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7844 | to the input group members. Ignore linker created group section. | |
7845 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7846 | if ((link_info == NULL |
7847 | || !link_info->resolve_section_groups) | |
7848 | && (elf_sec_group (isec) == NULL | |
7849 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7850 | { |
7bdf4127 AB |
7851 | if (elf_section_flags (isec) & SHF_GROUP) |
7852 | elf_section_flags (osec) |= SHF_GROUP; | |
7853 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7854 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7855 | } |
7856 | ||
7bdf4127 AB |
7857 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7858 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7859 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7860 | & SHF_COMPRESSED); | |
7861 | ||
ccd2ec6a L |
7862 | ihdr = &elf_section_data (isec)->this_hdr; |
7863 | ||
7864 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7865 | don't use the output section of the linked-to section since it | |
7866 | may be NULL at this point. */ | |
7867 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7868 | { | |
7869 | ohdr = &elf_section_data (osec)->this_hdr; | |
7870 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7871 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7872 | } | |
7873 | ||
7874 | osec->use_rela_p = isec->use_rela_p; | |
7875 | ||
7876 | return TRUE; | |
7877 | } | |
7878 | ||
252b5132 RH |
7879 | /* Copy private section information. This copies over the entsize |
7880 | field, and sometimes the info field. */ | |
7881 | ||
b34976b6 | 7882 | bfd_boolean |
217aa764 AM |
7883 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7884 | asection *isec, | |
7885 | bfd *obfd, | |
7886 | asection *osec) | |
252b5132 RH |
7887 | { |
7888 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7889 | ||
7890 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7891 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7892 | return TRUE; |
252b5132 | 7893 | |
252b5132 RH |
7894 | ihdr = &elf_section_data (isec)->this_hdr; |
7895 | ohdr = &elf_section_data (osec)->this_hdr; | |
7896 | ||
7897 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7898 | ||
7899 | if (ihdr->sh_type == SHT_SYMTAB | |
7900 | || ihdr->sh_type == SHT_DYNSYM | |
7901 | || ihdr->sh_type == SHT_GNU_verneed | |
7902 | || ihdr->sh_type == SHT_GNU_verdef) | |
7903 | ohdr->sh_info = ihdr->sh_info; | |
7904 | ||
ccd2ec6a L |
7905 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7906 | NULL); | |
252b5132 RH |
7907 | } |
7908 | ||
d0bf826b AM |
7909 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7910 | necessary if we are removing either the SHT_GROUP section or any of | |
7911 | the group member sections. DISCARDED is the value that a section's | |
7912 | output_section has if the section will be discarded, NULL when this | |
7913 | function is called from objcopy, bfd_abs_section_ptr when called | |
7914 | from the linker. */ | |
80fccad2 BW |
7915 | |
7916 | bfd_boolean | |
d0bf826b | 7917 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7918 | { |
30288845 AM |
7919 | asection *isec; |
7920 | ||
30288845 | 7921 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7922 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7923 | { |
7924 | asection *first = elf_next_in_group (isec); | |
7925 | asection *s = first; | |
d0bf826b AM |
7926 | bfd_size_type removed = 0; |
7927 | ||
30288845 AM |
7928 | while (s != NULL) |
7929 | { | |
415f38a6 AM |
7930 | /* If this member section is being output but the |
7931 | SHT_GROUP section is not, then clear the group info | |
7932 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7933 | if (s->output_section != discarded |
7934 | && isec->output_section == discarded) | |
30288845 AM |
7935 | { |
7936 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7937 | elf_group_name (s->output_section) = NULL; | |
7938 | } | |
3349112e | 7939 | else |
6e5e9d58 AM |
7940 | { |
7941 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
3349112e L |
7942 | if (s->output_section == discarded |
7943 | && isec->output_section != discarded) | |
7944 | { | |
7945 | /* Conversely, if the member section is not being | |
7946 | output but the SHT_GROUP section is, then adjust | |
7947 | its size. */ | |
7948 | removed += 4; | |
7949 | if (elf_sec->rel.hdr != NULL | |
7950 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7951 | removed += 4; | |
7952 | if (elf_sec->rela.hdr != NULL | |
7953 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7954 | removed += 4; | |
7955 | } | |
7956 | else | |
7957 | { | |
7958 | /* Also adjust for zero-sized relocation member | |
7959 | section. */ | |
7960 | if (elf_sec->rel.hdr != NULL | |
7961 | && elf_sec->rel.hdr->sh_size == 0) | |
7962 | removed += 4; | |
7963 | if (elf_sec->rela.hdr != NULL | |
7964 | && elf_sec->rela.hdr->sh_size == 0) | |
7965 | removed += 4; | |
7966 | } | |
6e5e9d58 | 7967 | } |
30288845 AM |
7968 | s = elf_next_in_group (s); |
7969 | if (s == first) | |
7970 | break; | |
7971 | } | |
d0bf826b AM |
7972 | if (removed != 0) |
7973 | { | |
7974 | if (discarded != NULL) | |
7975 | { | |
7976 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7977 | adjust the input section size. */ |
d0bf826b AM |
7978 | if (isec->rawsize == 0) |
7979 | isec->rawsize = isec->size; | |
7980 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7981 | if (isec->size <= 4) |
7982 | { | |
7983 | isec->size = 0; | |
7984 | isec->flags |= SEC_EXCLUDE; | |
7985 | } | |
d0bf826b AM |
7986 | } |
7987 | else | |
7988 | { | |
7989 | /* Adjust the output section size when called from | |
7990 | objcopy. */ | |
7991 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7992 | if (isec->output_section->size <= 4) |
7993 | { | |
7994 | isec->output_section->size = 0; | |
7995 | isec->output_section->flags |= SEC_EXCLUDE; | |
7996 | } | |
d0bf826b AM |
7997 | } |
7998 | } | |
30288845 AM |
7999 | } |
8000 | ||
80fccad2 BW |
8001 | return TRUE; |
8002 | } | |
8003 | ||
d0bf826b AM |
8004 | /* Copy private header information. */ |
8005 | ||
8006 | bfd_boolean | |
8007 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
8008 | { | |
8009 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8010 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
8011 | return TRUE; | |
8012 | ||
8013 | /* Copy over private BFD data if it has not already been copied. | |
8014 | This must be done here, rather than in the copy_private_bfd_data | |
8015 | entry point, because the latter is called after the section | |
8016 | contents have been set, which means that the program headers have | |
8017 | already been worked out. */ | |
12bd6957 | 8018 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
8019 | { |
8020 | if (! copy_private_bfd_data (ibfd, obfd)) | |
8021 | return FALSE; | |
8022 | } | |
8023 | ||
8024 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
8025 | } | |
8026 | ||
252b5132 RH |
8027 | /* Copy private symbol information. If this symbol is in a section |
8028 | which we did not map into a BFD section, try to map the section | |
8029 | index correctly. We use special macro definitions for the mapped | |
8030 | section indices; these definitions are interpreted by the | |
8031 | swap_out_syms function. */ | |
8032 | ||
9ad5cbcf AM |
8033 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
8034 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
8035 | #define MAP_STRTAB (SHN_HIOS + 3) | |
8036 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
8037 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 8038 | |
b34976b6 | 8039 | bfd_boolean |
217aa764 AM |
8040 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
8041 | asymbol *isymarg, | |
8042 | bfd *obfd, | |
8043 | asymbol *osymarg) | |
252b5132 RH |
8044 | { |
8045 | elf_symbol_type *isym, *osym; | |
8046 | ||
8047 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8048 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 8049 | return TRUE; |
252b5132 RH |
8050 | |
8051 | isym = elf_symbol_from (ibfd, isymarg); | |
8052 | osym = elf_symbol_from (obfd, osymarg); | |
8053 | ||
8054 | if (isym != NULL | |
8424d8f5 | 8055 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
8056 | && osym != NULL |
8057 | && bfd_is_abs_section (isym->symbol.section)) | |
8058 | { | |
8059 | unsigned int shndx; | |
8060 | ||
8061 | shndx = isym->internal_elf_sym.st_shndx; | |
8062 | if (shndx == elf_onesymtab (ibfd)) | |
8063 | shndx = MAP_ONESYMTAB; | |
8064 | else if (shndx == elf_dynsymtab (ibfd)) | |
8065 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 8066 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 8067 | shndx = MAP_STRTAB; |
12bd6957 | 8068 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 8069 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 8070 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 8071 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
8072 | osym->internal_elf_sym.st_shndx = shndx; |
8073 | } | |
8074 | ||
b34976b6 | 8075 | return TRUE; |
252b5132 RH |
8076 | } |
8077 | ||
8078 | /* Swap out the symbols. */ | |
8079 | ||
b34976b6 | 8080 | static bfd_boolean |
217aa764 | 8081 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8082 | struct elf_strtab_hash **sttp, |
217aa764 | 8083 | int relocatable_p) |
252b5132 | 8084 | { |
9c5bfbb7 | 8085 | const struct elf_backend_data *bed; |
1f4361a7 | 8086 | unsigned int symcount; |
079e9a2f | 8087 | asymbol **syms; |
ef10c3ac | 8088 | struct elf_strtab_hash *stt; |
079e9a2f | 8089 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8090 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8091 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8092 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8093 | bfd_byte *outbound_syms; |
8094 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
8095 | unsigned long outbound_syms_index; |
8096 | unsigned long outbound_shndx_index; | |
1f4361a7 | 8097 | unsigned int idx; |
12bd6957 | 8098 | unsigned int num_locals; |
1f4361a7 | 8099 | size_t amt; |
174fd7f9 | 8100 | bfd_boolean name_local_sections; |
252b5132 | 8101 | |
12bd6957 | 8102 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 8103 | return FALSE; |
252b5132 | 8104 | |
c044fabd | 8105 | /* Dump out the symtabs. */ |
ef10c3ac | 8106 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8107 | if (stt == NULL) |
b34976b6 | 8108 | return FALSE; |
252b5132 | 8109 | |
079e9a2f AM |
8110 | bed = get_elf_backend_data (abfd); |
8111 | symcount = bfd_get_symcount (abfd); | |
8112 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8113 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8114 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8115 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8116 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8117 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8118 | |
8119 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8120 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8121 | ||
ef10c3ac | 8122 | /* Allocate buffer to swap out the .strtab section. */ |
1f4361a7 AM |
8123 | if (_bfd_mul_overflow (symcount + 1, sizeof (*symstrtab), &amt) |
8124 | || (symstrtab = (struct elf_sym_strtab *) bfd_malloc (amt)) == NULL) | |
ef10c3ac | 8125 | { |
1f4361a7 | 8126 | bfd_set_error (bfd_error_no_memory); |
ef10c3ac L |
8127 | _bfd_elf_strtab_free (stt); |
8128 | return FALSE; | |
8129 | } | |
8130 | ||
1f4361a7 AM |
8131 | if (_bfd_mul_overflow (symcount + 1, bed->s->sizeof_sym, &amt) |
8132 | || (outbound_syms = (bfd_byte *) bfd_alloc (abfd, amt)) == NULL) | |
5ed6aba4 | 8133 | { |
1f4361a7 AM |
8134 | error_no_mem: |
8135 | bfd_set_error (bfd_error_no_memory); | |
8136 | error_return: | |
ef10c3ac | 8137 | free (symstrtab); |
1f4361a7 | 8138 | _bfd_elf_strtab_free (stt); |
5ed6aba4 NC |
8139 | return FALSE; |
8140 | } | |
217aa764 | 8141 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8142 | outbound_syms_index = 0; |
252b5132 | 8143 | |
9ad5cbcf | 8144 | outbound_shndx = NULL; |
ef10c3ac | 8145 | outbound_shndx_index = 0; |
6a40cf0c NC |
8146 | |
8147 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8148 | { |
6a40cf0c NC |
8149 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8150 | if (symtab_shndx_hdr->sh_name != 0) | |
8151 | { | |
1f4361a7 AM |
8152 | if (_bfd_mul_overflow (symcount + 1, |
8153 | sizeof (Elf_External_Sym_Shndx), &amt)) | |
8154 | goto error_no_mem; | |
8155 | outbound_shndx = (bfd_byte *) bfd_zalloc (abfd, amt); | |
6a40cf0c NC |
8156 | if (outbound_shndx == NULL) |
8157 | goto error_return; | |
5ed6aba4 | 8158 | |
6a40cf0c NC |
8159 | symtab_shndx_hdr->contents = outbound_shndx; |
8160 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8161 | symtab_shndx_hdr->sh_size = amt; | |
8162 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8163 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8164 | } | |
8165 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8166 | } |
8167 | ||
589e6347 | 8168 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8169 | { |
8170 | /* Fill in zeroth symbol and swap it out. */ | |
8171 | Elf_Internal_Sym sym; | |
8172 | sym.st_name = 0; | |
8173 | sym.st_value = 0; | |
8174 | sym.st_size = 0; | |
8175 | sym.st_info = 0; | |
8176 | sym.st_other = 0; | |
8177 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8178 | sym.st_target_internal = 0; |
ef10c3ac L |
8179 | symstrtab[0].sym = sym; |
8180 | symstrtab[0].dest_index = outbound_syms_index; | |
8181 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8182 | outbound_syms_index++; | |
9ad5cbcf | 8183 | if (outbound_shndx != NULL) |
ef10c3ac | 8184 | outbound_shndx_index++; |
079e9a2f | 8185 | } |
252b5132 | 8186 | |
174fd7f9 RS |
8187 | name_local_sections |
8188 | = (bed->elf_backend_name_local_section_symbols | |
8189 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8190 | ||
079e9a2f | 8191 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8192 | for (idx = 0; idx < symcount;) |
252b5132 | 8193 | { |
252b5132 | 8194 | Elf_Internal_Sym sym; |
079e9a2f AM |
8195 | bfd_vma value = syms[idx]->value; |
8196 | elf_symbol_type *type_ptr; | |
8197 | flagword flags = syms[idx]->flags; | |
8198 | int type; | |
252b5132 | 8199 | |
174fd7f9 RS |
8200 | if (!name_local_sections |
8201 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8202 | { |
8203 | /* Local section symbols have no name. */ | |
ef10c3ac | 8204 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8205 | } |
8206 | else | |
8207 | { | |
ef10c3ac L |
8208 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8209 | to get the final offset for st_name. */ | |
8210 | sym.st_name | |
8211 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
8212 | FALSE); | |
079e9a2f | 8213 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8214 | goto error_return; |
079e9a2f | 8215 | } |
252b5132 | 8216 | |
079e9a2f | 8217 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 8218 | |
079e9a2f AM |
8219 | if ((flags & BSF_SECTION_SYM) == 0 |
8220 | && bfd_is_com_section (syms[idx]->section)) | |
8221 | { | |
8222 | /* ELF common symbols put the alignment into the `value' field, | |
8223 | and the size into the `size' field. This is backwards from | |
8224 | how BFD handles it, so reverse it here. */ | |
8225 | sym.st_size = value; | |
8226 | if (type_ptr == NULL | |
8227 | || type_ptr->internal_elf_sym.st_value == 0) | |
8228 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8229 | else | |
8230 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8231 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8232 | (abfd, syms[idx]->section); | |
8233 | } | |
8234 | else | |
8235 | { | |
8236 | asection *sec = syms[idx]->section; | |
cb33740c | 8237 | unsigned int shndx; |
252b5132 | 8238 | |
079e9a2f AM |
8239 | if (sec->output_section) |
8240 | { | |
8241 | value += sec->output_offset; | |
8242 | sec = sec->output_section; | |
8243 | } | |
589e6347 | 8244 | |
079e9a2f AM |
8245 | /* Don't add in the section vma for relocatable output. */ |
8246 | if (! relocatable_p) | |
8247 | value += sec->vma; | |
8248 | sym.st_value = value; | |
8249 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8250 | ||
8251 | if (bfd_is_abs_section (sec) | |
8252 | && type_ptr != NULL | |
8253 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8254 | { | |
8255 | /* This symbol is in a real ELF section which we did | |
8256 | not create as a BFD section. Undo the mapping done | |
8257 | by copy_private_symbol_data. */ | |
8258 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8259 | switch (shndx) | |
8260 | { | |
8261 | case MAP_ONESYMTAB: | |
8262 | shndx = elf_onesymtab (abfd); | |
8263 | break; | |
8264 | case MAP_DYNSYMTAB: | |
8265 | shndx = elf_dynsymtab (abfd); | |
8266 | break; | |
8267 | case MAP_STRTAB: | |
12bd6957 | 8268 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8269 | break; |
8270 | case MAP_SHSTRTAB: | |
12bd6957 | 8271 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8272 | break; |
9ad5cbcf | 8273 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8274 | if (elf_symtab_shndx_list (abfd)) |
8275 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8276 | break; |
00e49dff NC |
8277 | case SHN_COMMON: |
8278 | case SHN_ABS: | |
15bc576a | 8279 | shndx = SHN_ABS; |
079e9a2f | 8280 | break; |
00e49dff NC |
8281 | default: |
8282 | if (shndx >= SHN_LOPROC && shndx <= SHN_HIOS) | |
8283 | { | |
8284 | if (bed->symbol_section_index) | |
8285 | shndx = bed->symbol_section_index (abfd, type_ptr); | |
8286 | /* Otherwise just leave the index alone. */ | |
8287 | } | |
8288 | else | |
8289 | { | |
8290 | if (shndx > SHN_HIOS && shndx < SHN_HIRESERVE) | |
8291 | _bfd_error_handler (_("%pB: \ | |
8292 | Unable to handle section index %x in ELF symbol. Using ABS instead."), | |
8293 | abfd, shndx); | |
8294 | shndx = SHN_ABS; | |
8295 | } | |
8296 | break; | |
079e9a2f AM |
8297 | } |
8298 | } | |
8299 | else | |
8300 | { | |
8301 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8302 | |
cb33740c | 8303 | if (shndx == SHN_BAD) |
079e9a2f AM |
8304 | { |
8305 | asection *sec2; | |
8306 | ||
8307 | /* Writing this would be a hell of a lot easier if | |
8308 | we had some decent documentation on bfd, and | |
8309 | knew what to expect of the library, and what to | |
8310 | demand of applications. For example, it | |
8311 | appears that `objcopy' might not set the | |
8312 | section of a symbol to be a section that is | |
8313 | actually in the output file. */ | |
8314 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8315 | if (sec2 != NULL) |
8316 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8317 | if (shndx == SHN_BAD) | |
589e6347 | 8318 | { |
695344c0 | 8319 | /* xgettext:c-format */ |
9793eb77 AM |
8320 | _bfd_error_handler |
8321 | (_("unable to find equivalent output section" | |
8322 | " for symbol '%s' from section '%s'"), | |
8323 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8324 | sec->name); | |
811072d8 | 8325 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8326 | goto error_return; |
589e6347 | 8327 | } |
079e9a2f AM |
8328 | } |
8329 | } | |
252b5132 | 8330 | |
079e9a2f AM |
8331 | sym.st_shndx = shndx; |
8332 | } | |
252b5132 | 8333 | |
13ae64f3 JJ |
8334 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8335 | type = STT_TLS; | |
d8045f23 NC |
8336 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8337 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8338 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8339 | type = STT_FUNC; |
8340 | else if ((flags & BSF_OBJECT) != 0) | |
8341 | type = STT_OBJECT; | |
d9352518 DB |
8342 | else if ((flags & BSF_RELC) != 0) |
8343 | type = STT_RELC; | |
8344 | else if ((flags & BSF_SRELC) != 0) | |
8345 | type = STT_SRELC; | |
079e9a2f AM |
8346 | else |
8347 | type = STT_NOTYPE; | |
252b5132 | 8348 | |
13ae64f3 JJ |
8349 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8350 | type = STT_TLS; | |
8351 | ||
589e6347 | 8352 | /* Processor-specific types. */ |
079e9a2f AM |
8353 | if (type_ptr != NULL |
8354 | && bed->elf_backend_get_symbol_type) | |
8355 | type = ((*bed->elf_backend_get_symbol_type) | |
8356 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8357 | |
079e9a2f AM |
8358 | if (flags & BSF_SECTION_SYM) |
8359 | { | |
8360 | if (flags & BSF_GLOBAL) | |
8361 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8362 | else | |
8363 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8364 | } | |
8365 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8366 | { |
b8871f35 L |
8367 | if (type != STT_TLS) |
8368 | { | |
8369 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8370 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8371 | ? STT_COMMON : STT_OBJECT); | |
8372 | else | |
8373 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8374 | ? STT_COMMON : STT_OBJECT); | |
8375 | } | |
8376 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8377 | } |
079e9a2f AM |
8378 | else if (bfd_is_und_section (syms[idx]->section)) |
8379 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8380 | ? STB_WEAK | |
8381 | : STB_GLOBAL), | |
8382 | type); | |
8383 | else if (flags & BSF_FILE) | |
8384 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8385 | else | |
8386 | { | |
8387 | int bind = STB_LOCAL; | |
252b5132 | 8388 | |
079e9a2f AM |
8389 | if (flags & BSF_LOCAL) |
8390 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8391 | else if (flags & BSF_GNU_UNIQUE) |
8392 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8393 | else if (flags & BSF_WEAK) |
8394 | bind = STB_WEAK; | |
8395 | else if (flags & BSF_GLOBAL) | |
8396 | bind = STB_GLOBAL; | |
252b5132 | 8397 | |
079e9a2f AM |
8398 | sym.st_info = ELF_ST_INFO (bind, type); |
8399 | } | |
252b5132 | 8400 | |
079e9a2f | 8401 | if (type_ptr != NULL) |
35fc36a8 RS |
8402 | { |
8403 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8404 | sym.st_target_internal | |
8405 | = type_ptr->internal_elf_sym.st_target_internal; | |
8406 | } | |
079e9a2f | 8407 | else |
35fc36a8 RS |
8408 | { |
8409 | sym.st_other = 0; | |
8410 | sym.st_target_internal = 0; | |
8411 | } | |
252b5132 | 8412 | |
ef10c3ac L |
8413 | idx++; |
8414 | symstrtab[idx].sym = sym; | |
8415 | symstrtab[idx].dest_index = outbound_syms_index; | |
8416 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8417 | ||
8418 | outbound_syms_index++; | |
9ad5cbcf | 8419 | if (outbound_shndx != NULL) |
ef10c3ac L |
8420 | outbound_shndx_index++; |
8421 | } | |
8422 | ||
8423 | /* Finalize the .strtab section. */ | |
8424 | _bfd_elf_strtab_finalize (stt); | |
8425 | ||
8426 | /* Swap out the .strtab section. */ | |
8427 | for (idx = 0; idx <= symcount; idx++) | |
8428 | { | |
8429 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8430 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8431 | elfsym->sym.st_name = 0; | |
8432 | else | |
8433 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8434 | elfsym->sym.st_name); | |
8435 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8436 | (outbound_syms | |
8437 | + (elfsym->dest_index | |
8438 | * bed->s->sizeof_sym)), | |
8439 | (outbound_shndx | |
8440 | + (elfsym->destshndx_index | |
8441 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8442 | } |
ef10c3ac | 8443 | free (symstrtab); |
252b5132 | 8444 | |
079e9a2f | 8445 | *sttp = stt; |
ef10c3ac | 8446 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8447 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8448 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8449 | symstrtab_hdr->sh_addr = 0; |
8450 | symstrtab_hdr->sh_entsize = 0; | |
8451 | symstrtab_hdr->sh_link = 0; | |
8452 | symstrtab_hdr->sh_info = 0; | |
8453 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8454 | |
b34976b6 | 8455 | return TRUE; |
252b5132 RH |
8456 | } |
8457 | ||
8458 | /* Return the number of bytes required to hold the symtab vector. | |
8459 | ||
8460 | Note that we base it on the count plus 1, since we will null terminate | |
8461 | the vector allocated based on this size. However, the ELF symbol table | |
8462 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8463 | ||
8464 | long | |
217aa764 | 8465 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8466 | { |
3a551c7a | 8467 | bfd_size_type symcount; |
252b5132 RH |
8468 | long symtab_size; |
8469 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8470 | ||
8471 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8472 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8473 | { | |
8474 | bfd_set_error (bfd_error_file_too_big); | |
8475 | return -1; | |
8476 | } | |
b99d1833 AM |
8477 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8478 | if (symcount > 0) | |
8479 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8480 | |
8481 | return symtab_size; | |
8482 | } | |
8483 | ||
8484 | long | |
217aa764 | 8485 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8486 | { |
3a551c7a | 8487 | bfd_size_type symcount; |
252b5132 RH |
8488 | long symtab_size; |
8489 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8490 | ||
8491 | if (elf_dynsymtab (abfd) == 0) | |
8492 | { | |
8493 | bfd_set_error (bfd_error_invalid_operation); | |
8494 | return -1; | |
8495 | } | |
8496 | ||
8497 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8498 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8499 | { | |
8500 | bfd_set_error (bfd_error_file_too_big); | |
8501 | return -1; | |
8502 | } | |
b99d1833 AM |
8503 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8504 | if (symcount > 0) | |
8505 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8506 | |
8507 | return symtab_size; | |
8508 | } | |
8509 | ||
8510 | long | |
3c568b8a | 8511 | _bfd_elf_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 8512 | { |
3c568b8a AM |
8513 | if (asect->reloc_count != 0) |
8514 | { | |
8515 | /* Sanity check reloc section size. */ | |
8516 | struct bfd_elf_section_data *d = elf_section_data (asect); | |
8517 | Elf_Internal_Shdr *rel_hdr = &d->this_hdr; | |
8518 | bfd_size_type ext_rel_size = rel_hdr->sh_size; | |
8519 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8520 | ||
8521 | if (filesize != 0 && ext_rel_size > filesize) | |
8522 | { | |
8523 | bfd_set_error (bfd_error_file_truncated); | |
8524 | return -1; | |
8525 | } | |
8526 | } | |
8527 | ||
242a1159 | 8528 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8529 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8530 | { | |
8531 | bfd_set_error (bfd_error_file_too_big); | |
8532 | return -1; | |
8533 | } | |
242a1159 | 8534 | #endif |
252b5132 RH |
8535 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8536 | } | |
8537 | ||
8538 | /* Canonicalize the relocs. */ | |
8539 | ||
8540 | long | |
217aa764 AM |
8541 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8542 | sec_ptr section, | |
8543 | arelent **relptr, | |
8544 | asymbol **symbols) | |
252b5132 RH |
8545 | { |
8546 | arelent *tblptr; | |
8547 | unsigned int i; | |
9c5bfbb7 | 8548 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8549 | |
b34976b6 | 8550 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8551 | return -1; |
8552 | ||
8553 | tblptr = section->relocation; | |
8554 | for (i = 0; i < section->reloc_count; i++) | |
8555 | *relptr++ = tblptr++; | |
8556 | ||
8557 | *relptr = NULL; | |
8558 | ||
8559 | return section->reloc_count; | |
8560 | } | |
8561 | ||
8562 | long | |
6cee3f79 | 8563 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8564 | { |
9c5bfbb7 | 8565 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8566 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8567 | |
8568 | if (symcount >= 0) | |
ed48ec2e | 8569 | abfd->symcount = symcount; |
252b5132 RH |
8570 | return symcount; |
8571 | } | |
8572 | ||
8573 | long | |
217aa764 AM |
8574 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8575 | asymbol **allocation) | |
252b5132 | 8576 | { |
9c5bfbb7 | 8577 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8578 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8579 | |
8580 | if (symcount >= 0) | |
ed48ec2e | 8581 | abfd->dynsymcount = symcount; |
1f70368c | 8582 | return symcount; |
252b5132 RH |
8583 | } |
8584 | ||
8615f3f2 AM |
8585 | /* Return the size required for the dynamic reloc entries. Any loadable |
8586 | section that was actually installed in the BFD, and has type SHT_REL | |
8587 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8588 | dynamic reloc section. */ | |
252b5132 RH |
8589 | |
8590 | long | |
217aa764 | 8591 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8592 | { |
3c568b8a | 8593 | bfd_size_type count, ext_rel_size; |
252b5132 RH |
8594 | asection *s; |
8595 | ||
8596 | if (elf_dynsymtab (abfd) == 0) | |
8597 | { | |
8598 | bfd_set_error (bfd_error_invalid_operation); | |
8599 | return -1; | |
8600 | } | |
8601 | ||
3a551c7a | 8602 | count = 1; |
3c568b8a | 8603 | ext_rel_size = 0; |
252b5132 | 8604 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8605 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8606 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8607 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a | 8608 | { |
3c568b8a AM |
8609 | ext_rel_size += s->size; |
8610 | if (ext_rel_size < s->size) | |
8611 | { | |
8612 | bfd_set_error (bfd_error_file_truncated); | |
8613 | return -1; | |
8614 | } | |
3a551c7a AM |
8615 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; |
8616 | if (count > LONG_MAX / sizeof (arelent *)) | |
8617 | { | |
8618 | bfd_set_error (bfd_error_file_too_big); | |
8619 | return -1; | |
8620 | } | |
8621 | } | |
3c568b8a AM |
8622 | if (count > 1) |
8623 | { | |
8624 | /* Sanity check reloc section sizes. */ | |
8625 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8626 | if (filesize != 0 && ext_rel_size > filesize) | |
8627 | { | |
8628 | bfd_set_error (bfd_error_file_truncated); | |
8629 | return -1; | |
8630 | } | |
8631 | } | |
3a551c7a | 8632 | return count * sizeof (arelent *); |
252b5132 RH |
8633 | } |
8634 | ||
8615f3f2 AM |
8635 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8636 | dynamic relocations as a single block, although they are actually | |
8637 | associated with particular sections; the interface, which was | |
8638 | designed for SunOS style shared libraries, expects that there is only | |
8639 | one set of dynamic relocs. Any loadable section that was actually | |
8640 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8641 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8642 | |
8643 | long | |
217aa764 AM |
8644 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8645 | arelent **storage, | |
8646 | asymbol **syms) | |
252b5132 | 8647 | { |
217aa764 | 8648 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8649 | asection *s; |
8650 | long ret; | |
8651 | ||
8652 | if (elf_dynsymtab (abfd) == 0) | |
8653 | { | |
8654 | bfd_set_error (bfd_error_invalid_operation); | |
8655 | return -1; | |
8656 | } | |
8657 | ||
8658 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8659 | ret = 0; | |
8660 | for (s = abfd->sections; s != NULL; s = s->next) | |
8661 | { | |
266b05cf | 8662 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8663 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8664 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8665 | { | |
8666 | arelent *p; | |
8667 | long count, i; | |
8668 | ||
b34976b6 | 8669 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8670 | return -1; |
eea6121a | 8671 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8672 | p = s->relocation; |
8673 | for (i = 0; i < count; i++) | |
8674 | *storage++ = p++; | |
8675 | ret += count; | |
8676 | } | |
8677 | } | |
8678 | ||
8679 | *storage = NULL; | |
8680 | ||
8681 | return ret; | |
8682 | } | |
8683 | \f | |
8684 | /* Read in the version information. */ | |
8685 | ||
b34976b6 | 8686 | bfd_boolean |
fc0e6df6 | 8687 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8688 | { |
8689 | bfd_byte *contents = NULL; | |
fc0e6df6 | 8690 | unsigned int freeidx = 0; |
1f4361a7 | 8691 | size_t amt; |
fc0e6df6 PB |
8692 | |
8693 | if (elf_dynverref (abfd) != 0) | |
8694 | { | |
8695 | Elf_Internal_Shdr *hdr; | |
8696 | Elf_External_Verneed *everneed; | |
8697 | Elf_Internal_Verneed *iverneed; | |
8698 | unsigned int i; | |
d0fb9a8d | 8699 | bfd_byte *contents_end; |
fc0e6df6 PB |
8700 | |
8701 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8702 | ||
bd61e135 AM |
8703 | if (hdr->sh_info == 0 |
8704 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8705 | { |
dc1e8a47 | 8706 | error_return_bad_verref: |
4eca0228 | 8707 | _bfd_error_handler |
871b3ab2 | 8708 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8709 | bfd_set_error (bfd_error_bad_value); |
dc1e8a47 | 8710 | error_return_verref: |
d0fb9a8d JJ |
8711 | elf_tdata (abfd)->verref = NULL; |
8712 | elf_tdata (abfd)->cverrefs = 0; | |
8713 | goto error_return; | |
8714 | } | |
601a03ba | 8715 | |
2bb3687b AM |
8716 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
8717 | goto error_return_verref; | |
8718 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); | |
8719 | if (contents == NULL) | |
d0fb9a8d | 8720 | goto error_return_verref; |
fc0e6df6 | 8721 | |
1f4361a7 AM |
8722 | if (_bfd_mul_overflow (hdr->sh_info, sizeof (Elf_Internal_Verneed), &amt)) |
8723 | { | |
8724 | bfd_set_error (bfd_error_file_too_big); | |
8725 | goto error_return_verref; | |
8726 | } | |
8727 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt); | |
601a03ba | 8728 | if (elf_tdata (abfd)->verref == NULL) |
d0fb9a8d JJ |
8729 | goto error_return_verref; |
8730 | ||
8731 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8732 | == sizeof (Elf_External_Vernaux)); | |
8733 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8734 | everneed = (Elf_External_Verneed *) contents; |
8735 | iverneed = elf_tdata (abfd)->verref; | |
8736 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8737 | { | |
8738 | Elf_External_Vernaux *evernaux; | |
8739 | Elf_Internal_Vernaux *ivernaux; | |
8740 | unsigned int j; | |
8741 | ||
8742 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8743 | ||
8744 | iverneed->vn_bfd = abfd; | |
8745 | ||
8746 | iverneed->vn_filename = | |
8747 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8748 | iverneed->vn_file); | |
8749 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8750 | goto error_return_bad_verref; |
fc0e6df6 | 8751 | |
d0fb9a8d JJ |
8752 | if (iverneed->vn_cnt == 0) |
8753 | iverneed->vn_auxptr = NULL; | |
8754 | else | |
8755 | { | |
1f4361a7 AM |
8756 | if (_bfd_mul_overflow (iverneed->vn_cnt, |
8757 | sizeof (Elf_Internal_Vernaux), &amt)) | |
8758 | { | |
8759 | bfd_set_error (bfd_error_file_too_big); | |
8760 | goto error_return_verref; | |
8761 | } | |
a50b1753 | 8762 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
1f4361a7 | 8763 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8764 | if (iverneed->vn_auxptr == NULL) |
8765 | goto error_return_verref; | |
8766 | } | |
8767 | ||
8768 | if (iverneed->vn_aux | |
8769 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8770 | goto error_return_bad_verref; |
fc0e6df6 PB |
8771 | |
8772 | evernaux = ((Elf_External_Vernaux *) | |
8773 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8774 | ivernaux = iverneed->vn_auxptr; | |
8775 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8776 | { | |
8777 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8778 | ||
8779 | ivernaux->vna_nodename = | |
8780 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8781 | ivernaux->vna_name); | |
8782 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8783 | goto error_return_bad_verref; |
fc0e6df6 | 8784 | |
25ff461f AM |
8785 | if (ivernaux->vna_other > freeidx) |
8786 | freeidx = ivernaux->vna_other; | |
8787 | ||
8788 | ivernaux->vna_nextptr = NULL; | |
8789 | if (ivernaux->vna_next == 0) | |
8790 | { | |
8791 | iverneed->vn_cnt = j + 1; | |
8792 | break; | |
8793 | } | |
fc0e6df6 PB |
8794 | if (j + 1 < iverneed->vn_cnt) |
8795 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8796 | |
d0fb9a8d JJ |
8797 | if (ivernaux->vna_next |
8798 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8799 | goto error_return_bad_verref; |
d0fb9a8d | 8800 | |
fc0e6df6 PB |
8801 | evernaux = ((Elf_External_Vernaux *) |
8802 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8803 | } |
8804 | ||
25ff461f AM |
8805 | iverneed->vn_nextref = NULL; |
8806 | if (iverneed->vn_next == 0) | |
8807 | break; | |
fc0e6df6 PB |
8808 | if (i + 1 < hdr->sh_info) |
8809 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8810 | |
d0fb9a8d JJ |
8811 | if (iverneed->vn_next |
8812 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8813 | goto error_return_bad_verref; |
d0fb9a8d | 8814 | |
fc0e6df6 PB |
8815 | everneed = ((Elf_External_Verneed *) |
8816 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8817 | } | |
25ff461f | 8818 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8819 | |
8820 | free (contents); | |
8821 | contents = NULL; | |
8822 | } | |
252b5132 RH |
8823 | |
8824 | if (elf_dynverdef (abfd) != 0) | |
8825 | { | |
8826 | Elf_Internal_Shdr *hdr; | |
8827 | Elf_External_Verdef *everdef; | |
8828 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8829 | Elf_Internal_Verdef *iverdefarr; |
8830 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8831 | unsigned int i; |
062e2358 | 8832 | unsigned int maxidx; |
d0fb9a8d | 8833 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8834 | |
8835 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8836 | ||
601a03ba AM |
8837 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8838 | { | |
8839 | error_return_bad_verdef: | |
4eca0228 | 8840 | _bfd_error_handler |
871b3ab2 | 8841 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8842 | bfd_set_error (bfd_error_bad_value); |
8843 | error_return_verdef: | |
8844 | elf_tdata (abfd)->verdef = NULL; | |
8845 | elf_tdata (abfd)->cverdefs = 0; | |
8846 | goto error_return; | |
8847 | } | |
8848 | ||
2bb3687b | 8849 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
601a03ba | 8850 | goto error_return_verdef; |
2bb3687b AM |
8851 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); |
8852 | if (contents == NULL) | |
601a03ba | 8853 | goto error_return_verdef; |
d0fb9a8d JJ |
8854 | |
8855 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8856 | >= sizeof (Elf_External_Verdaux)); | |
8857 | contents_end_def = contents + hdr->sh_size | |
8858 | - sizeof (Elf_External_Verdef); | |
8859 | contents_end_aux = contents + hdr->sh_size | |
8860 | - sizeof (Elf_External_Verdaux); | |
8861 | ||
f631889e UD |
8862 | /* We know the number of entries in the section but not the maximum |
8863 | index. Therefore we have to run through all entries and find | |
8864 | the maximum. */ | |
252b5132 | 8865 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8866 | maxidx = 0; |
8867 | for (i = 0; i < hdr->sh_info; ++i) | |
8868 | { | |
8869 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8870 | ||
601a03ba AM |
8871 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8872 | goto error_return_bad_verdef; | |
062e2358 AM |
8873 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8874 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8875 | |
25ff461f AM |
8876 | if (iverdefmem.vd_next == 0) |
8877 | break; | |
8878 | ||
d0fb9a8d JJ |
8879 | if (iverdefmem.vd_next |
8880 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8881 | goto error_return_bad_verdef; |
d0fb9a8d | 8882 | |
f631889e UD |
8883 | everdef = ((Elf_External_Verdef *) |
8884 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8885 | } | |
8886 | ||
fc0e6df6 PB |
8887 | if (default_imported_symver) |
8888 | { | |
8889 | if (freeidx > maxidx) | |
8890 | maxidx = ++freeidx; | |
8891 | else | |
8892 | freeidx = ++maxidx; | |
8893 | } | |
1f4361a7 AM |
8894 | if (_bfd_mul_overflow (maxidx, sizeof (Elf_Internal_Verdef), &amt)) |
8895 | { | |
8896 | bfd_set_error (bfd_error_file_too_big); | |
8897 | goto error_return_verdef; | |
8898 | } | |
8899 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e | 8900 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8901 | goto error_return_verdef; |
f631889e UD |
8902 | |
8903 | elf_tdata (abfd)->cverdefs = maxidx; | |
8904 | ||
8905 | everdef = (Elf_External_Verdef *) contents; | |
8906 | iverdefarr = elf_tdata (abfd)->verdef; | |
8907 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8908 | { |
8909 | Elf_External_Verdaux *everdaux; | |
8910 | Elf_Internal_Verdaux *iverdaux; | |
8911 | unsigned int j; | |
8912 | ||
f631889e UD |
8913 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8914 | ||
d0fb9a8d | 8915 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8916 | goto error_return_bad_verdef; |
d0fb9a8d | 8917 | |
f631889e | 8918 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8919 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8920 | |
8921 | iverdef->vd_bfd = abfd; | |
8922 | ||
d0fb9a8d JJ |
8923 | if (iverdef->vd_cnt == 0) |
8924 | iverdef->vd_auxptr = NULL; | |
8925 | else | |
8926 | { | |
1f4361a7 AM |
8927 | if (_bfd_mul_overflow (iverdef->vd_cnt, |
8928 | sizeof (Elf_Internal_Verdaux), &amt)) | |
8929 | { | |
8930 | bfd_set_error (bfd_error_file_too_big); | |
8931 | goto error_return_verdef; | |
8932 | } | |
a50b1753 | 8933 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
1f4361a7 | 8934 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8935 | if (iverdef->vd_auxptr == NULL) |
8936 | goto error_return_verdef; | |
8937 | } | |
8938 | ||
8939 | if (iverdef->vd_aux | |
8940 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8941 | goto error_return_bad_verdef; |
252b5132 RH |
8942 | |
8943 | everdaux = ((Elf_External_Verdaux *) | |
8944 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8945 | iverdaux = iverdef->vd_auxptr; | |
8946 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8947 | { | |
8948 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8949 | ||
8950 | iverdaux->vda_nodename = | |
8951 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8952 | iverdaux->vda_name); | |
8953 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8954 | goto error_return_bad_verdef; |
252b5132 | 8955 | |
25ff461f AM |
8956 | iverdaux->vda_nextptr = NULL; |
8957 | if (iverdaux->vda_next == 0) | |
8958 | { | |
8959 | iverdef->vd_cnt = j + 1; | |
8960 | break; | |
8961 | } | |
252b5132 RH |
8962 | if (j + 1 < iverdef->vd_cnt) |
8963 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8964 | |
d0fb9a8d JJ |
8965 | if (iverdaux->vda_next |
8966 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8967 | goto error_return_bad_verdef; |
d0fb9a8d | 8968 | |
252b5132 RH |
8969 | everdaux = ((Elf_External_Verdaux *) |
8970 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8971 | } | |
8972 | ||
595bce75 | 8973 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8974 | if (iverdef->vd_cnt) |
8975 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8976 | |
25ff461f AM |
8977 | iverdef->vd_nextdef = NULL; |
8978 | if (iverdef->vd_next == 0) | |
8979 | break; | |
d0fb9a8d | 8980 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8981 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8982 | |
8983 | everdef = ((Elf_External_Verdef *) | |
8984 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8985 | } | |
8986 | ||
8987 | free (contents); | |
8988 | contents = NULL; | |
8989 | } | |
fc0e6df6 | 8990 | else if (default_imported_symver) |
252b5132 | 8991 | { |
fc0e6df6 PB |
8992 | if (freeidx < 3) |
8993 | freeidx = 3; | |
8994 | else | |
8995 | freeidx++; | |
252b5132 | 8996 | |
1f4361a7 AM |
8997 | if (_bfd_mul_overflow (freeidx, sizeof (Elf_Internal_Verdef), &amt)) |
8998 | { | |
8999 | bfd_set_error (bfd_error_file_too_big); | |
9000 | goto error_return; | |
9001 | } | |
9002 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
fc0e6df6 | 9003 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
9004 | goto error_return; |
9005 | ||
fc0e6df6 PB |
9006 | elf_tdata (abfd)->cverdefs = freeidx; |
9007 | } | |
252b5132 | 9008 | |
fc0e6df6 PB |
9009 | /* Create a default version based on the soname. */ |
9010 | if (default_imported_symver) | |
9011 | { | |
9012 | Elf_Internal_Verdef *iverdef; | |
9013 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 9014 | |
5bb3703f | 9015 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 9016 | |
fc0e6df6 PB |
9017 | iverdef->vd_version = VER_DEF_CURRENT; |
9018 | iverdef->vd_flags = 0; | |
9019 | iverdef->vd_ndx = freeidx; | |
9020 | iverdef->vd_cnt = 1; | |
252b5132 | 9021 | |
fc0e6df6 | 9022 | iverdef->vd_bfd = abfd; |
252b5132 | 9023 | |
fc0e6df6 PB |
9024 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
9025 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 9026 | goto error_return_verdef; |
fc0e6df6 | 9027 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
9028 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
9029 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
9030 | if (iverdef->vd_auxptr == NULL) |
9031 | goto error_return_verdef; | |
252b5132 | 9032 | |
fc0e6df6 PB |
9033 | iverdaux = iverdef->vd_auxptr; |
9034 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
9035 | } |
9036 | ||
b34976b6 | 9037 | return TRUE; |
252b5132 RH |
9038 | |
9039 | error_return: | |
5ed6aba4 | 9040 | if (contents != NULL) |
252b5132 | 9041 | free (contents); |
b34976b6 | 9042 | return FALSE; |
252b5132 RH |
9043 | } |
9044 | \f | |
9045 | asymbol * | |
217aa764 | 9046 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
9047 | { |
9048 | elf_symbol_type *newsym; | |
9049 | ||
7a6e0d89 | 9050 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
9051 | if (!newsym) |
9052 | return NULL; | |
201159ec NC |
9053 | newsym->symbol.the_bfd = abfd; |
9054 | return &newsym->symbol; | |
252b5132 RH |
9055 | } |
9056 | ||
9057 | void | |
217aa764 AM |
9058 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
9059 | asymbol *symbol, | |
9060 | symbol_info *ret) | |
252b5132 RH |
9061 | { |
9062 | bfd_symbol_info (symbol, ret); | |
9063 | } | |
9064 | ||
9065 | /* Return whether a symbol name implies a local symbol. Most targets | |
9066 | use this function for the is_local_label_name entry point, but some | |
9067 | override it. */ | |
9068 | ||
b34976b6 | 9069 | bfd_boolean |
217aa764 AM |
9070 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
9071 | const char *name) | |
252b5132 RH |
9072 | { |
9073 | /* Normal local symbols start with ``.L''. */ | |
9074 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 9075 | return TRUE; |
252b5132 RH |
9076 | |
9077 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
9078 | DWARF debugging symbols starting with ``..''. */ | |
9079 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 9080 | return TRUE; |
252b5132 RH |
9081 | |
9082 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
9083 | emitting DWARF debugging output. I suspect this is actually a | |
9084 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
9085 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
9086 | underscore to be emitted on some ELF targets). For ease of use, | |
9087 | we treat such symbols as local. */ | |
9088 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 9089 | return TRUE; |
252b5132 | 9090 | |
b1fa9dd6 NC |
9091 | /* Treat assembler generated fake symbols, dollar local labels and |
9092 | forward-backward labels (aka local labels) as locals. | |
9093 | These labels have the form: | |
9094 | ||
07d6d2b8 | 9095 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
9096 | |
9097 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
9098 | ||
9099 | Versions which start with .L will have already been matched above, | |
9100 | so we only need to match the rest. */ | |
9101 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
9102 | { | |
9103 | bfd_boolean ret = FALSE; | |
9104 | const char * p; | |
9105 | char c; | |
9106 | ||
9107 | for (p = name + 2; (c = *p); p++) | |
9108 | { | |
9109 | if (c == 1 || c == 2) | |
9110 | { | |
9111 | if (c == 1 && p == name + 2) | |
9112 | /* A fake symbol. */ | |
9113 | return TRUE; | |
9114 | ||
9115 | /* FIXME: We are being paranoid here and treating symbols like | |
9116 | L0^Bfoo as if there were non-local, on the grounds that the | |
9117 | assembler will never generate them. But can any symbol | |
9118 | containing an ASCII value in the range 1-31 ever be anything | |
9119 | other than some kind of local ? */ | |
9120 | ret = TRUE; | |
9121 | } | |
9122 | ||
9123 | if (! ISDIGIT (c)) | |
9124 | { | |
9125 | ret = FALSE; | |
9126 | break; | |
9127 | } | |
9128 | } | |
9129 | return ret; | |
9130 | } | |
ffa54770 | 9131 | |
b34976b6 | 9132 | return FALSE; |
252b5132 RH |
9133 | } |
9134 | ||
9135 | alent * | |
217aa764 AM |
9136 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9137 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9138 | { |
9139 | abort (); | |
9140 | return NULL; | |
9141 | } | |
9142 | ||
b34976b6 | 9143 | bfd_boolean |
217aa764 AM |
9144 | _bfd_elf_set_arch_mach (bfd *abfd, |
9145 | enum bfd_architecture arch, | |
9146 | unsigned long machine) | |
252b5132 RH |
9147 | { |
9148 | /* If this isn't the right architecture for this backend, and this | |
9149 | isn't the generic backend, fail. */ | |
9150 | if (arch != get_elf_backend_data (abfd)->arch | |
9151 | && arch != bfd_arch_unknown | |
9152 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 9153 | return FALSE; |
252b5132 RH |
9154 | |
9155 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9156 | } | |
9157 | ||
d1fad7c6 NC |
9158 | /* Find the nearest line to a particular section and offset, |
9159 | for error reporting. */ | |
9160 | ||
b34976b6 | 9161 | bfd_boolean |
217aa764 | 9162 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9163 | asymbol **symbols, |
fb167eb2 | 9164 | asection *section, |
217aa764 AM |
9165 | bfd_vma offset, |
9166 | const char **filename_ptr, | |
9167 | const char **functionname_ptr, | |
fb167eb2 AM |
9168 | unsigned int *line_ptr, |
9169 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9170 | { |
b34976b6 | 9171 | bfd_boolean found; |
d1fad7c6 | 9172 | |
fb167eb2 | 9173 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9174 | filename_ptr, functionname_ptr, |
fb167eb2 | 9175 | line_ptr, discriminator_ptr, |
9defd221 | 9176 | dwarf_debug_sections, |
e7679060 AM |
9177 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
9178 | return TRUE; | |
9179 | ||
9180 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9181 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
9182 | { |
9183 | if (!*functionname_ptr) | |
e00e8198 AM |
9184 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9185 | *filename_ptr ? NULL : filename_ptr, | |
9186 | functionname_ptr); | |
b34976b6 | 9187 | return TRUE; |
d1fad7c6 NC |
9188 | } |
9189 | ||
9190 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9191 | &found, filename_ptr, |
9192 | functionname_ptr, line_ptr, | |
9193 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 9194 | return FALSE; |
dc43ada5 | 9195 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 9196 | return TRUE; |
d1fad7c6 NC |
9197 | |
9198 | if (symbols == NULL) | |
b34976b6 | 9199 | return FALSE; |
d1fad7c6 | 9200 | |
e00e8198 AM |
9201 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9202 | filename_ptr, functionname_ptr)) | |
b34976b6 | 9203 | return FALSE; |
d1fad7c6 | 9204 | |
252b5132 | 9205 | *line_ptr = 0; |
b34976b6 | 9206 | return TRUE; |
252b5132 RH |
9207 | } |
9208 | ||
5420f73d L |
9209 | /* Find the line for a symbol. */ |
9210 | ||
9211 | bfd_boolean | |
9212 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
9213 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9214 | { |
fb167eb2 AM |
9215 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9216 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9217 | dwarf_debug_sections, |
fb167eb2 | 9218 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9219 | } |
9220 | ||
4ab527b0 FF |
9221 | /* After a call to bfd_find_nearest_line, successive calls to |
9222 | bfd_find_inliner_info can be used to get source information about | |
9223 | each level of function inlining that terminated at the address | |
9224 | passed to bfd_find_nearest_line. Currently this is only supported | |
9225 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9226 | ||
9227 | bfd_boolean | |
9228 | _bfd_elf_find_inliner_info (bfd *abfd, | |
9229 | const char **filename_ptr, | |
9230 | const char **functionname_ptr, | |
9231 | unsigned int *line_ptr) | |
9232 | { | |
9233 | bfd_boolean found; | |
9234 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9235 | functionname_ptr, line_ptr, | |
9236 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9237 | return found; | |
9238 | } | |
9239 | ||
252b5132 | 9240 | int |
a6b96beb | 9241 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9242 | { |
8ded5a0f AM |
9243 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9244 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9245 | |
0e1862bb | 9246 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9247 | { |
12bd6957 | 9248 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9249 | |
62d7a5f6 AM |
9250 | if (phdr_size == (bfd_size_type) -1) |
9251 | { | |
9252 | struct elf_segment_map *m; | |
9253 | ||
9254 | phdr_size = 0; | |
12bd6957 | 9255 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9256 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9257 | |
62d7a5f6 AM |
9258 | if (phdr_size == 0) |
9259 | phdr_size = get_program_header_size (abfd, info); | |
9260 | } | |
8ded5a0f | 9261 | |
12bd6957 | 9262 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9263 | ret += phdr_size; |
9264 | } | |
9265 | ||
252b5132 RH |
9266 | return ret; |
9267 | } | |
9268 | ||
b34976b6 | 9269 | bfd_boolean |
217aa764 AM |
9270 | _bfd_elf_set_section_contents (bfd *abfd, |
9271 | sec_ptr section, | |
0f867abe | 9272 | const void *location, |
217aa764 AM |
9273 | file_ptr offset, |
9274 | bfd_size_type count) | |
252b5132 RH |
9275 | { |
9276 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9277 | file_ptr pos; |
252b5132 RH |
9278 | |
9279 | if (! abfd->output_has_begun | |
217aa764 | 9280 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 9281 | return FALSE; |
252b5132 | 9282 | |
0ce398f1 L |
9283 | if (!count) |
9284 | return TRUE; | |
9285 | ||
252b5132 | 9286 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9287 | if (hdr->sh_offset == (file_ptr) -1) |
9288 | { | |
a0dcf297 NC |
9289 | unsigned char *contents; |
9290 | ||
1ff6de03 NA |
9291 | if (bfd_section_is_ctf (section)) |
9292 | /* Nothing to do with this section: the contents are generated | |
9293 | later. */ | |
9294 | return TRUE; | |
9295 | ||
a0dcf297 NC |
9296 | if ((section->flags & SEC_ELF_COMPRESS) == 0) |
9297 | { | |
9298 | _bfd_error_handler | |
9299 | (_("%pB:%pA: error: attempting to write into an unallocated compressed section"), | |
9300 | abfd, section); | |
9301 | bfd_set_error (bfd_error_invalid_operation); | |
9302 | return FALSE; | |
9303 | } | |
9304 | ||
9305 | if ((offset + count) > hdr->sh_size) | |
9306 | { | |
9307 | _bfd_error_handler | |
9308 | (_("%pB:%pA: error: attempting to write over the end of the section"), | |
9309 | abfd, section); | |
9310 | ||
9311 | bfd_set_error (bfd_error_invalid_operation); | |
9312 | return FALSE; | |
9313 | } | |
9314 | ||
9315 | contents = hdr->contents; | |
9316 | if (contents == NULL) | |
9317 | { | |
9318 | _bfd_error_handler | |
9319 | (_("%pB:%pA: error: attempting to write section into an empty buffer"), | |
9320 | abfd, section); | |
9321 | ||
9322 | bfd_set_error (bfd_error_invalid_operation); | |
9323 | return FALSE; | |
9324 | } | |
9325 | ||
0ce398f1 L |
9326 | memcpy (contents + offset, location, count); |
9327 | return TRUE; | |
9328 | } | |
a0dcf297 | 9329 | |
dc810e39 AM |
9330 | pos = hdr->sh_offset + offset; |
9331 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9332 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9333 | return FALSE; |
252b5132 | 9334 | |
b34976b6 | 9335 | return TRUE; |
252b5132 RH |
9336 | } |
9337 | ||
f3185997 | 9338 | bfd_boolean |
217aa764 AM |
9339 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9340 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9341 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9342 | { |
9343 | abort (); | |
f3185997 | 9344 | return FALSE; |
252b5132 RH |
9345 | } |
9346 | ||
252b5132 RH |
9347 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9348 | ||
b34976b6 | 9349 | bfd_boolean |
217aa764 | 9350 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9351 | { |
c044fabd | 9352 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9353 | |
9354 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9355 | { | |
9356 | bfd_reloc_code_real_type code; | |
9357 | reloc_howto_type *howto; | |
9358 | ||
9359 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9360 | equivalent ELF reloc. */ |
252b5132 RH |
9361 | |
9362 | if (areloc->howto->pc_relative) | |
9363 | { | |
9364 | switch (areloc->howto->bitsize) | |
9365 | { | |
9366 | case 8: | |
9367 | code = BFD_RELOC_8_PCREL; | |
9368 | break; | |
9369 | case 12: | |
9370 | code = BFD_RELOC_12_PCREL; | |
9371 | break; | |
9372 | case 16: | |
9373 | code = BFD_RELOC_16_PCREL; | |
9374 | break; | |
9375 | case 24: | |
9376 | code = BFD_RELOC_24_PCREL; | |
9377 | break; | |
9378 | case 32: | |
9379 | code = BFD_RELOC_32_PCREL; | |
9380 | break; | |
9381 | case 64: | |
9382 | code = BFD_RELOC_64_PCREL; | |
9383 | break; | |
9384 | default: | |
9385 | goto fail; | |
9386 | } | |
9387 | ||
9388 | howto = bfd_reloc_type_lookup (abfd, code); | |
9389 | ||
94698d01 | 9390 | if (howto && areloc->howto->pcrel_offset != howto->pcrel_offset) |
252b5132 RH |
9391 | { |
9392 | if (howto->pcrel_offset) | |
9393 | areloc->addend += areloc->address; | |
9394 | else | |
9395 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9396 | } | |
9397 | } | |
9398 | else | |
9399 | { | |
9400 | switch (areloc->howto->bitsize) | |
9401 | { | |
9402 | case 8: | |
9403 | code = BFD_RELOC_8; | |
9404 | break; | |
9405 | case 14: | |
9406 | code = BFD_RELOC_14; | |
9407 | break; | |
9408 | case 16: | |
9409 | code = BFD_RELOC_16; | |
9410 | break; | |
9411 | case 26: | |
9412 | code = BFD_RELOC_26; | |
9413 | break; | |
9414 | case 32: | |
9415 | code = BFD_RELOC_32; | |
9416 | break; | |
9417 | case 64: | |
9418 | code = BFD_RELOC_64; | |
9419 | break; | |
9420 | default: | |
9421 | goto fail; | |
9422 | } | |
9423 | ||
9424 | howto = bfd_reloc_type_lookup (abfd, code); | |
9425 | } | |
9426 | ||
9427 | if (howto) | |
9428 | areloc->howto = howto; | |
9429 | else | |
9430 | goto fail; | |
9431 | } | |
9432 | ||
b34976b6 | 9433 | return TRUE; |
252b5132 RH |
9434 | |
9435 | fail: | |
0aa13fee AM |
9436 | /* xgettext:c-format */ |
9437 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9438 | abfd, areloc->howto->name); | |
9aea1e31 | 9439 | bfd_set_error (bfd_error_sorry); |
b34976b6 | 9440 | return FALSE; |
252b5132 RH |
9441 | } |
9442 | ||
b34976b6 | 9443 | bfd_boolean |
217aa764 | 9444 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9445 | { |
d9071b0c TG |
9446 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9447 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9448 | { |
c0355132 | 9449 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9450 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9451 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9452 | } |
9453 | ||
9454 | return _bfd_generic_close_and_cleanup (abfd); | |
9455 | } | |
9456 | ||
9457 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9458 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9459 | range-checking to interfere. There is nothing else to do in processing | |
9460 | this reloc. */ | |
9461 | ||
9462 | bfd_reloc_status_type | |
217aa764 AM |
9463 | _bfd_elf_rel_vtable_reloc_fn |
9464 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9465 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9466 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9467 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9468 | { |
9469 | return bfd_reloc_ok; | |
9470 | } | |
252b5132 RH |
9471 | \f |
9472 | /* Elf core file support. Much of this only works on native | |
9473 | toolchains, since we rely on knowing the | |
9474 | machine-dependent procfs structure in order to pick | |
c044fabd | 9475 | out details about the corefile. */ |
252b5132 RH |
9476 | |
9477 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9478 | /* Needed for new procfs interface on sparc-solaris. */ |
9479 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9480 | # include <sys/procfs.h> |
9481 | #endif | |
9482 | ||
261b8d08 PA |
9483 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9484 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9485 | |
9486 | static int | |
217aa764 | 9487 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9488 | { |
261b8d08 PA |
9489 | int pid; |
9490 | ||
228e534f | 9491 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9492 | if (pid == 0) |
228e534f | 9493 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9494 | |
9495 | return pid; | |
252b5132 RH |
9496 | } |
9497 | ||
252b5132 RH |
9498 | /* If there isn't a section called NAME, make one, using |
9499 | data from SECT. Note, this function will generate a | |
9500 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9501 | overwrite it. */ |
252b5132 | 9502 | |
b34976b6 | 9503 | static bfd_boolean |
217aa764 | 9504 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9505 | { |
c044fabd | 9506 | asection *sect2; |
252b5132 RH |
9507 | |
9508 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9509 | return TRUE; |
252b5132 | 9510 | |
117ed4f8 | 9511 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9512 | if (sect2 == NULL) |
b34976b6 | 9513 | return FALSE; |
252b5132 | 9514 | |
eea6121a | 9515 | sect2->size = sect->size; |
252b5132 | 9516 | sect2->filepos = sect->filepos; |
252b5132 | 9517 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9518 | return TRUE; |
252b5132 RH |
9519 | } |
9520 | ||
bb0082d6 AM |
9521 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9522 | actually creates up to two pseudosections: | |
9523 | - For the single-threaded case, a section named NAME, unless | |
9524 | such a section already exists. | |
9525 | - For the multi-threaded case, a section named "NAME/PID", where | |
9526 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9527 | Both pseudosections have identical contents. */ |
b34976b6 | 9528 | bfd_boolean |
217aa764 AM |
9529 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9530 | char *name, | |
9531 | size_t size, | |
9532 | ufile_ptr filepos) | |
bb0082d6 AM |
9533 | { |
9534 | char buf[100]; | |
9535 | char *threaded_name; | |
d4c88bbb | 9536 | size_t len; |
bb0082d6 AM |
9537 | asection *sect; |
9538 | ||
9539 | /* Build the section name. */ | |
9540 | ||
9541 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9542 | len = strlen (buf) + 1; |
a50b1753 | 9543 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9544 | if (threaded_name == NULL) |
b34976b6 | 9545 | return FALSE; |
d4c88bbb | 9546 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9547 | |
117ed4f8 AM |
9548 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9549 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9550 | if (sect == NULL) |
b34976b6 | 9551 | return FALSE; |
eea6121a | 9552 | sect->size = size; |
bb0082d6 | 9553 | sect->filepos = filepos; |
bb0082d6 AM |
9554 | sect->alignment_power = 2; |
9555 | ||
936e320b | 9556 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9557 | } |
9558 | ||
58e07198 CZ |
9559 | static bfd_boolean |
9560 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9561 | size_t offs) | |
9562 | { | |
9563 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9564 | SEC_HAS_CONTENTS); | |
9565 | ||
9566 | if (sect == NULL) | |
9567 | return FALSE; | |
9568 | ||
9569 | sect->size = note->descsz - offs; | |
9570 | sect->filepos = note->descpos + offs; | |
9571 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9572 | ||
9573 | return TRUE; | |
9574 | } | |
9575 | ||
252b5132 | 9576 | /* prstatus_t exists on: |
4a938328 | 9577 | solaris 2.5+ |
252b5132 RH |
9578 | linux 2.[01] + glibc |
9579 | unixware 4.2 | |
9580 | */ | |
9581 | ||
9582 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9583 | |
b34976b6 | 9584 | static bfd_boolean |
217aa764 | 9585 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9586 | { |
eea6121a | 9587 | size_t size; |
7ee38065 | 9588 | int offset; |
252b5132 | 9589 | |
4a938328 MS |
9590 | if (note->descsz == sizeof (prstatus_t)) |
9591 | { | |
9592 | prstatus_t prstat; | |
252b5132 | 9593 | |
eea6121a | 9594 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9595 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9596 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9597 | |
fa49d224 NC |
9598 | /* Do not overwrite the core signal if it |
9599 | has already been set by another thread. */ | |
228e534f AM |
9600 | if (elf_tdata (abfd)->core->signal == 0) |
9601 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9602 | if (elf_tdata (abfd)->core->pid == 0) | |
9603 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9604 | |
4a938328 MS |
9605 | /* pr_who exists on: |
9606 | solaris 2.5+ | |
9607 | unixware 4.2 | |
9608 | pr_who doesn't exist on: | |
9609 | linux 2.[01] | |
9610 | */ | |
252b5132 | 9611 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9612 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9613 | #else |
228e534f | 9614 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9615 | #endif |
4a938328 | 9616 | } |
7ee38065 | 9617 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9618 | else if (note->descsz == sizeof (prstatus32_t)) |
9619 | { | |
9620 | /* 64-bit host, 32-bit corefile */ | |
9621 | prstatus32_t prstat; | |
9622 | ||
eea6121a | 9623 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9624 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9625 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9626 | ||
fa49d224 NC |
9627 | /* Do not overwrite the core signal if it |
9628 | has already been set by another thread. */ | |
228e534f AM |
9629 | if (elf_tdata (abfd)->core->signal == 0) |
9630 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9631 | if (elf_tdata (abfd)->core->pid == 0) | |
9632 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9633 | |
9634 | /* pr_who exists on: | |
9635 | solaris 2.5+ | |
9636 | unixware 4.2 | |
9637 | pr_who doesn't exist on: | |
9638 | linux 2.[01] | |
9639 | */ | |
7ee38065 | 9640 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9641 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9642 | #else |
228e534f | 9643 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9644 | #endif |
9645 | } | |
7ee38065 | 9646 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9647 | else |
9648 | { | |
9649 | /* Fail - we don't know how to handle any other | |
9650 | note size (ie. data object type). */ | |
b34976b6 | 9651 | return TRUE; |
4a938328 | 9652 | } |
252b5132 | 9653 | |
bb0082d6 | 9654 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9655 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9656 | size, note->descpos + offset); |
252b5132 RH |
9657 | } |
9658 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9659 | ||
bb0082d6 | 9660 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9661 | static bfd_boolean |
217aa764 AM |
9662 | elfcore_make_note_pseudosection (bfd *abfd, |
9663 | char *name, | |
9664 | Elf_Internal_Note *note) | |
252b5132 | 9665 | { |
936e320b AM |
9666 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9667 | note->descsz, note->descpos); | |
252b5132 RH |
9668 | } |
9669 | ||
ff08c6bb JB |
9670 | /* There isn't a consistent prfpregset_t across platforms, |
9671 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9672 | data structure apart. */ |
9673 | ||
b34976b6 | 9674 | static bfd_boolean |
217aa764 | 9675 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9676 | { |
9677 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9678 | } | |
9679 | ||
ff08c6bb | 9680 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9681 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9682 | literally. */ |
c044fabd | 9683 | |
b34976b6 | 9684 | static bfd_boolean |
217aa764 | 9685 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9686 | { |
9687 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9688 | } | |
9689 | ||
4339cae0 L |
9690 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9691 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9692 | contents literally. */ | |
9693 | ||
9694 | static bfd_boolean | |
9695 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9696 | { | |
9697 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9698 | } | |
9699 | ||
97753bd5 AM |
9700 | static bfd_boolean |
9701 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9702 | { | |
9703 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9704 | } | |
9705 | ||
89eeb0bc LM |
9706 | static bfd_boolean |
9707 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9708 | { | |
9709 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9710 | } | |
97753bd5 | 9711 | |
cb2366c1 EBM |
9712 | static bfd_boolean |
9713 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9714 | { | |
9715 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9716 | } | |
9717 | ||
9718 | static bfd_boolean | |
9719 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9720 | { | |
9721 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9722 | } | |
9723 | ||
9724 | static bfd_boolean | |
9725 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9726 | { | |
9727 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9728 | } | |
9729 | ||
9730 | static bfd_boolean | |
9731 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9732 | { | |
9733 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9734 | } | |
9735 | ||
9736 | static bfd_boolean | |
9737 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9738 | { | |
9739 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9740 | } | |
9741 | ||
9742 | static bfd_boolean | |
9743 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9744 | { | |
9745 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9746 | } | |
9747 | ||
9748 | static bfd_boolean | |
9749 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9750 | { | |
9751 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9752 | } | |
9753 | ||
9754 | static bfd_boolean | |
9755 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9756 | { | |
9757 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9758 | } | |
9759 | ||
9760 | static bfd_boolean | |
9761 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9762 | { | |
9763 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9764 | } | |
9765 | ||
9766 | static bfd_boolean | |
9767 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9768 | { | |
9769 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9770 | } | |
9771 | ||
9772 | static bfd_boolean | |
9773 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9774 | { | |
9775 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9776 | } | |
9777 | ||
9778 | static bfd_boolean | |
9779 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9780 | { | |
9781 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9782 | } | |
9783 | ||
9784 | static bfd_boolean | |
9785 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9786 | { | |
9787 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9788 | } | |
9789 | ||
0675e188 UW |
9790 | static bfd_boolean |
9791 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9792 | { | |
9793 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9794 | } | |
9795 | ||
d7eeb400 MS |
9796 | static bfd_boolean |
9797 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9798 | { | |
9799 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9800 | } | |
9801 | ||
9802 | static bfd_boolean | |
9803 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9804 | { | |
9805 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9806 | } | |
9807 | ||
9808 | static bfd_boolean | |
9809 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9810 | { | |
9811 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9812 | } | |
9813 | ||
9814 | static bfd_boolean | |
9815 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9816 | { | |
9817 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9818 | } | |
9819 | ||
9820 | static bfd_boolean | |
9821 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9822 | { | |
9823 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9824 | } | |
9825 | ||
355b81d9 UW |
9826 | static bfd_boolean |
9827 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9828 | { | |
9829 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9830 | } | |
9831 | ||
9832 | static bfd_boolean | |
9833 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9834 | { | |
9835 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9836 | } | |
9837 | ||
abb3f6cc NC |
9838 | static bfd_boolean |
9839 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9840 | { | |
9841 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9842 | } | |
9843 | ||
4ef9f41a AA |
9844 | static bfd_boolean |
9845 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9846 | { | |
9847 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9848 | } | |
9849 | ||
9850 | static bfd_boolean | |
9851 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9852 | { | |
9853 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9854 | } | |
9855 | ||
88ab90e8 AA |
9856 | static bfd_boolean |
9857 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9858 | { | |
9859 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9860 | } | |
9861 | ||
9862 | static bfd_boolean | |
9863 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9864 | { | |
9865 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9866 | } | |
9867 | ||
faa9a424 UW |
9868 | static bfd_boolean |
9869 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9870 | { | |
9871 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9872 | } | |
9873 | ||
652451f8 YZ |
9874 | static bfd_boolean |
9875 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9876 | { | |
9877 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9878 | } | |
9879 | ||
9880 | static bfd_boolean | |
9881 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9882 | { | |
9883 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9884 | } | |
9885 | ||
9886 | static bfd_boolean | |
9887 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9888 | { | |
9889 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9890 | } | |
9891 | ||
ad1cc4e4 AH |
9892 | static bfd_boolean |
9893 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9894 | { | |
9895 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9896 | } | |
9897 | ||
e6c3b5bf AH |
9898 | static bfd_boolean |
9899 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9900 | { | |
9901 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9902 | } | |
9903 | ||
27456742 AK |
9904 | static bfd_boolean |
9905 | elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note) | |
9906 | { | |
9907 | return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note); | |
9908 | } | |
9909 | ||
252b5132 | 9910 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9911 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9912 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9913 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9914 | #endif | |
252b5132 RH |
9915 | #endif |
9916 | ||
9917 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9918 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9919 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9920 | typedef psinfo32_t elfcore_psinfo32_t; |
9921 | #endif | |
252b5132 RH |
9922 | #endif |
9923 | ||
252b5132 RH |
9924 | /* return a malloc'ed copy of a string at START which is at |
9925 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9926 | the copy will always have a terminating '\0'. */ |
252b5132 | 9927 | |
936e320b | 9928 | char * |
217aa764 | 9929 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9930 | { |
dc810e39 | 9931 | char *dups; |
a50b1753 | 9932 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9933 | size_t len; |
252b5132 RH |
9934 | |
9935 | if (end == NULL) | |
9936 | len = max; | |
9937 | else | |
9938 | len = end - start; | |
9939 | ||
a50b1753 | 9940 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9941 | if (dups == NULL) |
252b5132 RH |
9942 | return NULL; |
9943 | ||
dc810e39 AM |
9944 | memcpy (dups, start, len); |
9945 | dups[len] = '\0'; | |
252b5132 | 9946 | |
dc810e39 | 9947 | return dups; |
252b5132 RH |
9948 | } |
9949 | ||
bb0082d6 | 9950 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9951 | static bfd_boolean |
217aa764 | 9952 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9953 | { |
4a938328 MS |
9954 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9955 | { | |
9956 | elfcore_psinfo_t psinfo; | |
252b5132 | 9957 | |
7ee38065 | 9958 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9959 | |
335e41d4 | 9960 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9961 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9962 | #endif |
228e534f | 9963 | elf_tdata (abfd)->core->program |
936e320b AM |
9964 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9965 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9966 | |
228e534f | 9967 | elf_tdata (abfd)->core->command |
936e320b AM |
9968 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9969 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9970 | } |
7ee38065 | 9971 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9972 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9973 | { | |
9974 | /* 64-bit host, 32-bit corefile */ | |
9975 | elfcore_psinfo32_t psinfo; | |
9976 | ||
7ee38065 | 9977 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9978 | |
335e41d4 | 9979 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9980 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9981 | #endif |
228e534f | 9982 | elf_tdata (abfd)->core->program |
936e320b AM |
9983 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9984 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9985 | |
228e534f | 9986 | elf_tdata (abfd)->core->command |
936e320b AM |
9987 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9988 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9989 | } |
9990 | #endif | |
9991 | ||
9992 | else | |
9993 | { | |
9994 | /* Fail - we don't know how to handle any other | |
9995 | note size (ie. data object type). */ | |
b34976b6 | 9996 | return TRUE; |
4a938328 | 9997 | } |
252b5132 RH |
9998 | |
9999 | /* Note that for some reason, a spurious space is tacked | |
10000 | onto the end of the args in some (at least one anyway) | |
c044fabd | 10001 | implementations, so strip it off if it exists. */ |
252b5132 RH |
10002 | |
10003 | { | |
228e534f | 10004 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
10005 | int n = strlen (command); |
10006 | ||
10007 | if (0 < n && command[n - 1] == ' ') | |
10008 | command[n - 1] = '\0'; | |
10009 | } | |
10010 | ||
b34976b6 | 10011 | return TRUE; |
252b5132 RH |
10012 | } |
10013 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
10014 | ||
252b5132 | 10015 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 10016 | static bfd_boolean |
217aa764 | 10017 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10018 | { |
f572a39d AM |
10019 | if (note->descsz == sizeof (pstatus_t) |
10020 | #if defined (HAVE_PXSTATUS_T) | |
10021 | || note->descsz == sizeof (pxstatus_t) | |
10022 | #endif | |
10023 | ) | |
4a938328 MS |
10024 | { |
10025 | pstatus_t pstat; | |
252b5132 | 10026 | |
4a938328 | 10027 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10028 | |
228e534f | 10029 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 10030 | } |
7ee38065 | 10031 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
10032 | else if (note->descsz == sizeof (pstatus32_t)) |
10033 | { | |
10034 | /* 64-bit host, 32-bit corefile */ | |
10035 | pstatus32_t pstat; | |
252b5132 | 10036 | |
4a938328 | 10037 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10038 | |
228e534f | 10039 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
10040 | } |
10041 | #endif | |
252b5132 RH |
10042 | /* Could grab some more details from the "representative" |
10043 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 10044 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 10045 | |
b34976b6 | 10046 | return TRUE; |
252b5132 RH |
10047 | } |
10048 | #endif /* defined (HAVE_PSTATUS_T) */ | |
10049 | ||
252b5132 | 10050 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 10051 | static bfd_boolean |
217aa764 | 10052 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
10053 | { |
10054 | lwpstatus_t lwpstat; | |
10055 | char buf[100]; | |
c044fabd | 10056 | char *name; |
d4c88bbb | 10057 | size_t len; |
c044fabd | 10058 | asection *sect; |
252b5132 | 10059 | |
f572a39d AM |
10060 | if (note->descsz != sizeof (lwpstat) |
10061 | #if defined (HAVE_LWPXSTATUS_T) | |
10062 | && note->descsz != sizeof (lwpxstatus_t) | |
10063 | #endif | |
10064 | ) | |
b34976b6 | 10065 | return TRUE; |
252b5132 RH |
10066 | |
10067 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
10068 | ||
228e534f | 10069 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
10070 | /* Do not overwrite the core signal if it has already been set by |
10071 | another thread. */ | |
228e534f AM |
10072 | if (elf_tdata (abfd)->core->signal == 0) |
10073 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 10074 | |
c044fabd | 10075 | /* Make a ".reg/999" section. */ |
252b5132 RH |
10076 | |
10077 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10078 | len = strlen (buf) + 1; |
217aa764 | 10079 | name = bfd_alloc (abfd, len); |
252b5132 | 10080 | if (name == NULL) |
b34976b6 | 10081 | return FALSE; |
d4c88bbb | 10082 | memcpy (name, buf, len); |
252b5132 | 10083 | |
117ed4f8 | 10084 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10085 | if (sect == NULL) |
b34976b6 | 10086 | return FALSE; |
252b5132 RH |
10087 | |
10088 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10089 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
10090 | sect->filepos = note->descpos |
10091 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
10092 | #endif | |
10093 | ||
10094 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 10095 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
10096 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
10097 | #endif | |
10098 | ||
252b5132 RH |
10099 | sect->alignment_power = 2; |
10100 | ||
10101 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 10102 | return FALSE; |
252b5132 RH |
10103 | |
10104 | /* Make a ".reg2/999" section */ | |
10105 | ||
10106 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10107 | len = strlen (buf) + 1; |
217aa764 | 10108 | name = bfd_alloc (abfd, len); |
252b5132 | 10109 | if (name == NULL) |
b34976b6 | 10110 | return FALSE; |
d4c88bbb | 10111 | memcpy (name, buf, len); |
252b5132 | 10112 | |
117ed4f8 | 10113 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10114 | if (sect == NULL) |
b34976b6 | 10115 | return FALSE; |
252b5132 RH |
10116 | |
10117 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10118 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
10119 | sect->filepos = note->descpos |
10120 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
10121 | #endif | |
10122 | ||
10123 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 10124 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
10125 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
10126 | #endif | |
10127 | ||
252b5132 RH |
10128 | sect->alignment_power = 2; |
10129 | ||
936e320b | 10130 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
10131 | } |
10132 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
10133 | ||
b34976b6 | 10134 | static bfd_boolean |
217aa764 | 10135 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
10136 | { |
10137 | char buf[30]; | |
c044fabd | 10138 | char *name; |
d4c88bbb | 10139 | size_t len; |
c044fabd | 10140 | asection *sect; |
4a6636fb PA |
10141 | int type; |
10142 | int is_active_thread; | |
10143 | bfd_vma base_addr; | |
16e9c715 | 10144 | |
4a6636fb | 10145 | if (note->descsz < 728) |
b34976b6 | 10146 | return TRUE; |
16e9c715 | 10147 | |
4a6636fb PA |
10148 | if (! CONST_STRNEQ (note->namedata, "win32")) |
10149 | return TRUE; | |
10150 | ||
10151 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 10152 | |
4a6636fb | 10153 | switch (type) |
16e9c715 | 10154 | { |
4a6636fb | 10155 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 10156 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 10157 | /* process_info.pid */ |
228e534f | 10158 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 10159 | /* process_info.signal */ |
228e534f | 10160 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 10161 | break; |
16e9c715 | 10162 | |
4a6636fb | 10163 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 10164 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
10165 | /* thread_info.tid */ |
10166 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 10167 | |
d4c88bbb | 10168 | len = strlen (buf) + 1; |
a50b1753 | 10169 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10170 | if (name == NULL) |
b34976b6 | 10171 | return FALSE; |
c044fabd | 10172 | |
d4c88bbb | 10173 | memcpy (name, buf, len); |
16e9c715 | 10174 | |
117ed4f8 | 10175 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10176 | if (sect == NULL) |
b34976b6 | 10177 | return FALSE; |
c044fabd | 10178 | |
4a6636fb PA |
10179 | /* sizeof (thread_info.thread_context) */ |
10180 | sect->size = 716; | |
10181 | /* offsetof (thread_info.thread_context) */ | |
10182 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10183 | sect->alignment_power = 2; |
10184 | ||
4a6636fb PA |
10185 | /* thread_info.is_active_thread */ |
10186 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10187 | ||
10188 | if (is_active_thread) | |
16e9c715 | 10189 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 10190 | return FALSE; |
16e9c715 NC |
10191 | break; |
10192 | ||
4a6636fb | 10193 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 10194 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
10195 | /* module_info.base_address */ |
10196 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 10197 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 10198 | |
d4c88bbb | 10199 | len = strlen (buf) + 1; |
a50b1753 | 10200 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10201 | if (name == NULL) |
b34976b6 | 10202 | return FALSE; |
c044fabd | 10203 | |
d4c88bbb | 10204 | memcpy (name, buf, len); |
252b5132 | 10205 | |
117ed4f8 | 10206 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10207 | |
16e9c715 | 10208 | if (sect == NULL) |
b34976b6 | 10209 | return FALSE; |
c044fabd | 10210 | |
eea6121a | 10211 | sect->size = note->descsz; |
16e9c715 | 10212 | sect->filepos = note->descpos; |
16e9c715 NC |
10213 | sect->alignment_power = 2; |
10214 | break; | |
10215 | ||
10216 | default: | |
b34976b6 | 10217 | return TRUE; |
16e9c715 NC |
10218 | } |
10219 | ||
b34976b6 | 10220 | return TRUE; |
16e9c715 | 10221 | } |
252b5132 | 10222 | |
b34976b6 | 10223 | static bfd_boolean |
217aa764 | 10224 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10225 | { |
9c5bfbb7 | 10226 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10227 | |
252b5132 RH |
10228 | switch (note->type) |
10229 | { | |
10230 | default: | |
b34976b6 | 10231 | return TRUE; |
252b5132 | 10232 | |
252b5132 | 10233 | case NT_PRSTATUS: |
bb0082d6 AM |
10234 | if (bed->elf_backend_grok_prstatus) |
10235 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 10236 | return TRUE; |
bb0082d6 | 10237 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10238 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10239 | #else |
b34976b6 | 10240 | return TRUE; |
252b5132 RH |
10241 | #endif |
10242 | ||
10243 | #if defined (HAVE_PSTATUS_T) | |
10244 | case NT_PSTATUS: | |
10245 | return elfcore_grok_pstatus (abfd, note); | |
10246 | #endif | |
10247 | ||
10248 | #if defined (HAVE_LWPSTATUS_T) | |
10249 | case NT_LWPSTATUS: | |
10250 | return elfcore_grok_lwpstatus (abfd, note); | |
10251 | #endif | |
10252 | ||
10253 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10254 | return elfcore_grok_prfpreg (abfd, note); | |
10255 | ||
c044fabd | 10256 | case NT_WIN32PSTATUS: |
16e9c715 | 10257 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10258 | |
c044fabd | 10259 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10260 | if (note->namesz == 6 |
10261 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10262 | return elfcore_grok_prxfpreg (abfd, note); |
10263 | else | |
b34976b6 | 10264 | return TRUE; |
ff08c6bb | 10265 | |
4339cae0 L |
10266 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10267 | if (note->namesz == 6 | |
10268 | && strcmp (note->namedata, "LINUX") == 0) | |
10269 | return elfcore_grok_xstatereg (abfd, note); | |
10270 | else | |
10271 | return TRUE; | |
10272 | ||
97753bd5 AM |
10273 | case NT_PPC_VMX: |
10274 | if (note->namesz == 6 | |
10275 | && strcmp (note->namedata, "LINUX") == 0) | |
10276 | return elfcore_grok_ppc_vmx (abfd, note); | |
10277 | else | |
10278 | return TRUE; | |
10279 | ||
89eeb0bc LM |
10280 | case NT_PPC_VSX: |
10281 | if (note->namesz == 6 | |
07d6d2b8 AM |
10282 | && strcmp (note->namedata, "LINUX") == 0) |
10283 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10284 | else |
07d6d2b8 | 10285 | return TRUE; |
89eeb0bc | 10286 | |
cb2366c1 EBM |
10287 | case NT_PPC_TAR: |
10288 | if (note->namesz == 6 | |
4b24dd1a AM |
10289 | && strcmp (note->namedata, "LINUX") == 0) |
10290 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10291 | else |
4b24dd1a | 10292 | return TRUE; |
cb2366c1 EBM |
10293 | |
10294 | case NT_PPC_PPR: | |
10295 | if (note->namesz == 6 | |
4b24dd1a AM |
10296 | && strcmp (note->namedata, "LINUX") == 0) |
10297 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10298 | else |
4b24dd1a | 10299 | return TRUE; |
cb2366c1 EBM |
10300 | |
10301 | case NT_PPC_DSCR: | |
10302 | if (note->namesz == 6 | |
4b24dd1a AM |
10303 | && strcmp (note->namedata, "LINUX") == 0) |
10304 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10305 | else |
4b24dd1a | 10306 | return TRUE; |
cb2366c1 EBM |
10307 | |
10308 | case NT_PPC_EBB: | |
10309 | if (note->namesz == 6 | |
4b24dd1a AM |
10310 | && strcmp (note->namedata, "LINUX") == 0) |
10311 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10312 | else |
4b24dd1a | 10313 | return TRUE; |
cb2366c1 EBM |
10314 | |
10315 | case NT_PPC_PMU: | |
10316 | if (note->namesz == 6 | |
4b24dd1a AM |
10317 | && strcmp (note->namedata, "LINUX") == 0) |
10318 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10319 | else |
4b24dd1a | 10320 | return TRUE; |
cb2366c1 EBM |
10321 | |
10322 | case NT_PPC_TM_CGPR: | |
10323 | if (note->namesz == 6 | |
4b24dd1a AM |
10324 | && strcmp (note->namedata, "LINUX") == 0) |
10325 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10326 | else |
4b24dd1a | 10327 | return TRUE; |
cb2366c1 EBM |
10328 | |
10329 | case NT_PPC_TM_CFPR: | |
10330 | if (note->namesz == 6 | |
4b24dd1a AM |
10331 | && strcmp (note->namedata, "LINUX") == 0) |
10332 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10333 | else |
4b24dd1a | 10334 | return TRUE; |
cb2366c1 EBM |
10335 | |
10336 | case NT_PPC_TM_CVMX: | |
10337 | if (note->namesz == 6 | |
4b24dd1a AM |
10338 | && strcmp (note->namedata, "LINUX") == 0) |
10339 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10340 | else |
4b24dd1a | 10341 | return TRUE; |
cb2366c1 EBM |
10342 | |
10343 | case NT_PPC_TM_CVSX: | |
10344 | if (note->namesz == 6 | |
4b24dd1a AM |
10345 | && strcmp (note->namedata, "LINUX") == 0) |
10346 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10347 | else |
4b24dd1a | 10348 | return TRUE; |
cb2366c1 EBM |
10349 | |
10350 | case NT_PPC_TM_SPR: | |
10351 | if (note->namesz == 6 | |
4b24dd1a AM |
10352 | && strcmp (note->namedata, "LINUX") == 0) |
10353 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10354 | else |
4b24dd1a | 10355 | return TRUE; |
cb2366c1 EBM |
10356 | |
10357 | case NT_PPC_TM_CTAR: | |
10358 | if (note->namesz == 6 | |
4b24dd1a AM |
10359 | && strcmp (note->namedata, "LINUX") == 0) |
10360 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10361 | else |
4b24dd1a | 10362 | return TRUE; |
cb2366c1 EBM |
10363 | |
10364 | case NT_PPC_TM_CPPR: | |
10365 | if (note->namesz == 6 | |
4b24dd1a AM |
10366 | && strcmp (note->namedata, "LINUX") == 0) |
10367 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10368 | else |
4b24dd1a | 10369 | return TRUE; |
cb2366c1 EBM |
10370 | |
10371 | case NT_PPC_TM_CDSCR: | |
10372 | if (note->namesz == 6 | |
4b24dd1a AM |
10373 | && strcmp (note->namedata, "LINUX") == 0) |
10374 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10375 | else |
4b24dd1a | 10376 | return TRUE; |
cb2366c1 | 10377 | |
0675e188 UW |
10378 | case NT_S390_HIGH_GPRS: |
10379 | if (note->namesz == 6 | |
07d6d2b8 AM |
10380 | && strcmp (note->namedata, "LINUX") == 0) |
10381 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10382 | else |
07d6d2b8 | 10383 | return TRUE; |
0675e188 | 10384 | |
d7eeb400 MS |
10385 | case NT_S390_TIMER: |
10386 | if (note->namesz == 6 | |
07d6d2b8 AM |
10387 | && strcmp (note->namedata, "LINUX") == 0) |
10388 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10389 | else |
07d6d2b8 | 10390 | return TRUE; |
d7eeb400 MS |
10391 | |
10392 | case NT_S390_TODCMP: | |
10393 | if (note->namesz == 6 | |
07d6d2b8 AM |
10394 | && strcmp (note->namedata, "LINUX") == 0) |
10395 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10396 | else |
07d6d2b8 | 10397 | return TRUE; |
d7eeb400 MS |
10398 | |
10399 | case NT_S390_TODPREG: | |
10400 | if (note->namesz == 6 | |
07d6d2b8 AM |
10401 | && strcmp (note->namedata, "LINUX") == 0) |
10402 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10403 | else |
07d6d2b8 | 10404 | return TRUE; |
d7eeb400 MS |
10405 | |
10406 | case NT_S390_CTRS: | |
10407 | if (note->namesz == 6 | |
07d6d2b8 AM |
10408 | && strcmp (note->namedata, "LINUX") == 0) |
10409 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10410 | else |
07d6d2b8 | 10411 | return TRUE; |
d7eeb400 MS |
10412 | |
10413 | case NT_S390_PREFIX: | |
10414 | if (note->namesz == 6 | |
07d6d2b8 AM |
10415 | && strcmp (note->namedata, "LINUX") == 0) |
10416 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10417 | else |
07d6d2b8 | 10418 | return TRUE; |
d7eeb400 | 10419 | |
355b81d9 UW |
10420 | case NT_S390_LAST_BREAK: |
10421 | if (note->namesz == 6 | |
07d6d2b8 AM |
10422 | && strcmp (note->namedata, "LINUX") == 0) |
10423 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10424 | else |
07d6d2b8 | 10425 | return TRUE; |
355b81d9 UW |
10426 | |
10427 | case NT_S390_SYSTEM_CALL: | |
10428 | if (note->namesz == 6 | |
07d6d2b8 AM |
10429 | && strcmp (note->namedata, "LINUX") == 0) |
10430 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10431 | else |
07d6d2b8 | 10432 | return TRUE; |
355b81d9 | 10433 | |
abb3f6cc NC |
10434 | case NT_S390_TDB: |
10435 | if (note->namesz == 6 | |
07d6d2b8 AM |
10436 | && strcmp (note->namedata, "LINUX") == 0) |
10437 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10438 | else |
07d6d2b8 | 10439 | return TRUE; |
abb3f6cc | 10440 | |
4ef9f41a AA |
10441 | case NT_S390_VXRS_LOW: |
10442 | if (note->namesz == 6 | |
10443 | && strcmp (note->namedata, "LINUX") == 0) | |
10444 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10445 | else | |
10446 | return TRUE; | |
10447 | ||
10448 | case NT_S390_VXRS_HIGH: | |
10449 | if (note->namesz == 6 | |
10450 | && strcmp (note->namedata, "LINUX") == 0) | |
10451 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10452 | else | |
10453 | return TRUE; | |
10454 | ||
88ab90e8 AA |
10455 | case NT_S390_GS_CB: |
10456 | if (note->namesz == 6 | |
10457 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10458 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10459 | else |
10460 | return TRUE; | |
10461 | ||
10462 | case NT_S390_GS_BC: | |
10463 | if (note->namesz == 6 | |
10464 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10465 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10466 | else |
10467 | return TRUE; | |
10468 | ||
27456742 AK |
10469 | case NT_ARC_V2: |
10470 | if (note->namesz == 6 | |
10471 | && strcmp (note->namedata, "LINUX") == 0) | |
10472 | return elfcore_grok_arc_v2 (abfd, note); | |
10473 | else | |
10474 | return TRUE; | |
10475 | ||
faa9a424 UW |
10476 | case NT_ARM_VFP: |
10477 | if (note->namesz == 6 | |
10478 | && strcmp (note->namedata, "LINUX") == 0) | |
10479 | return elfcore_grok_arm_vfp (abfd, note); | |
10480 | else | |
10481 | return TRUE; | |
10482 | ||
652451f8 YZ |
10483 | case NT_ARM_TLS: |
10484 | if (note->namesz == 6 | |
10485 | && strcmp (note->namedata, "LINUX") == 0) | |
10486 | return elfcore_grok_aarch_tls (abfd, note); | |
10487 | else | |
10488 | return TRUE; | |
10489 | ||
10490 | case NT_ARM_HW_BREAK: | |
10491 | if (note->namesz == 6 | |
10492 | && strcmp (note->namedata, "LINUX") == 0) | |
10493 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10494 | else | |
10495 | return TRUE; | |
10496 | ||
10497 | case NT_ARM_HW_WATCH: | |
10498 | if (note->namesz == 6 | |
10499 | && strcmp (note->namedata, "LINUX") == 0) | |
10500 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10501 | else | |
10502 | return TRUE; | |
10503 | ||
ad1cc4e4 AH |
10504 | case NT_ARM_SVE: |
10505 | if (note->namesz == 6 | |
10506 | && strcmp (note->namedata, "LINUX") == 0) | |
10507 | return elfcore_grok_aarch_sve (abfd, note); | |
10508 | else | |
10509 | return TRUE; | |
10510 | ||
e6c3b5bf AH |
10511 | case NT_ARM_PAC_MASK: |
10512 | if (note->namesz == 6 | |
10513 | && strcmp (note->namedata, "LINUX") == 0) | |
10514 | return elfcore_grok_aarch_pauth (abfd, note); | |
10515 | else | |
10516 | return TRUE; | |
10517 | ||
252b5132 RH |
10518 | case NT_PRPSINFO: |
10519 | case NT_PSINFO: | |
bb0082d6 AM |
10520 | if (bed->elf_backend_grok_psinfo) |
10521 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10522 | return TRUE; |
bb0082d6 | 10523 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10524 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10525 | #else |
b34976b6 | 10526 | return TRUE; |
252b5132 | 10527 | #endif |
3333a7c3 RM |
10528 | |
10529 | case NT_AUXV: | |
58e07198 | 10530 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10531 | |
451b7c33 TT |
10532 | case NT_FILE: |
10533 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10534 | note); | |
10535 | ||
9015683b TT |
10536 | case NT_SIGINFO: |
10537 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10538 | note); | |
5b2c414d | 10539 | |
252b5132 RH |
10540 | } |
10541 | } | |
10542 | ||
718175fa JK |
10543 | static bfd_boolean |
10544 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10545 | { | |
c74f7d1c | 10546 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10547 | |
10548 | if (note->descsz == 0) | |
10549 | return FALSE; | |
10550 | ||
c74f7d1c JT |
10551 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10552 | if (build_id == NULL) | |
718175fa JK |
10553 | return FALSE; |
10554 | ||
c74f7d1c JT |
10555 | build_id->size = note->descsz; |
10556 | memcpy (build_id->data, note->descdata, note->descsz); | |
10557 | abfd->build_id = build_id; | |
718175fa JK |
10558 | |
10559 | return TRUE; | |
10560 | } | |
10561 | ||
10562 | static bfd_boolean | |
10563 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10564 | { | |
10565 | switch (note->type) | |
10566 | { | |
10567 | default: | |
10568 | return TRUE; | |
10569 | ||
46bed679 L |
10570 | case NT_GNU_PROPERTY_TYPE_0: |
10571 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10572 | ||
718175fa JK |
10573 | case NT_GNU_BUILD_ID: |
10574 | return elfobj_grok_gnu_build_id (abfd, note); | |
10575 | } | |
10576 | } | |
10577 | ||
e21e5835 NC |
10578 | static bfd_boolean |
10579 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10580 | { | |
10581 | struct sdt_note *cur = | |
7a6e0d89 AM |
10582 | (struct sdt_note *) bfd_alloc (abfd, |
10583 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10584 | |
10585 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10586 | cur->size = (bfd_size_type) note->descsz; | |
10587 | memcpy (cur->data, note->descdata, note->descsz); | |
10588 | ||
10589 | elf_tdata (abfd)->sdt_note_head = cur; | |
10590 | ||
10591 | return TRUE; | |
10592 | } | |
10593 | ||
10594 | static bfd_boolean | |
10595 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10596 | { | |
10597 | switch (note->type) | |
10598 | { | |
10599 | case NT_STAPSDT: | |
10600 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10601 | ||
10602 | default: | |
10603 | return TRUE; | |
10604 | } | |
10605 | } | |
10606 | ||
aa1ed4a9 JB |
10607 | static bfd_boolean |
10608 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10609 | { | |
10610 | size_t offset; | |
10611 | ||
b5430a3c | 10612 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10613 | { |
b5430a3c | 10614 | case ELFCLASS32: |
0064d223 JB |
10615 | if (note->descsz < 108) |
10616 | return FALSE; | |
aa1ed4a9 JB |
10617 | break; |
10618 | ||
b5430a3c | 10619 | case ELFCLASS64: |
0064d223 JB |
10620 | if (note->descsz < 120) |
10621 | return FALSE; | |
aa1ed4a9 JB |
10622 | break; |
10623 | ||
10624 | default: | |
10625 | return FALSE; | |
10626 | } | |
10627 | ||
0064d223 JB |
10628 | /* Check for version 1 in pr_version. */ |
10629 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10630 | return FALSE; | |
80a04378 | 10631 | |
0064d223 JB |
10632 | offset = 4; |
10633 | ||
10634 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10635 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10636 | offset += 4; |
10637 | else | |
10638 | { | |
10639 | offset += 4; /* Padding before pr_psinfosz. */ | |
10640 | offset += 8; | |
10641 | } | |
10642 | ||
aa1ed4a9 JB |
10643 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10644 | elf_tdata (abfd)->core->program | |
10645 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10646 | offset += 17; | |
10647 | ||
10648 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10649 | elf_tdata (abfd)->core->command | |
10650 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10651 | offset += 81; |
10652 | ||
10653 | /* Padding before pr_pid. */ | |
10654 | offset += 2; | |
10655 | ||
10656 | /* The pr_pid field was added in version "1a". */ | |
10657 | if (note->descsz < offset + 4) | |
10658 | return TRUE; | |
10659 | ||
10660 | elf_tdata (abfd)->core->pid | |
10661 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10662 | |
10663 | return TRUE; | |
10664 | } | |
10665 | ||
10666 | static bfd_boolean | |
10667 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10668 | { | |
10669 | size_t offset; | |
10670 | size_t size; | |
24d3e51b | 10671 | size_t min_size; |
aa1ed4a9 | 10672 | |
24d3e51b NC |
10673 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10674 | Also compute minimum size of this note. */ | |
b5430a3c | 10675 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10676 | { |
b5430a3c | 10677 | case ELFCLASS32: |
24d3e51b NC |
10678 | offset = 4 + 4; |
10679 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10680 | break; |
10681 | ||
b5430a3c | 10682 | case ELFCLASS64: |
24d3e51b NC |
10683 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10684 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10685 | break; |
10686 | ||
10687 | default: | |
10688 | return FALSE; | |
10689 | } | |
10690 | ||
24d3e51b NC |
10691 | if (note->descsz < min_size) |
10692 | return FALSE; | |
10693 | ||
10694 | /* Check for version 1 in pr_version. */ | |
10695 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10696 | return FALSE; | |
aa1ed4a9 | 10697 | |
24d3e51b NC |
10698 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10699 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10700 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10701 | { |
10702 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10703 | offset += 4 * 2; | |
10704 | } | |
b5430a3c | 10705 | else |
24d3e51b NC |
10706 | { |
10707 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10708 | offset += 8 * 2; | |
10709 | } | |
aa1ed4a9 | 10710 | |
24d3e51b | 10711 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10712 | offset += 4; |
10713 | ||
24d3e51b | 10714 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10715 | if (elf_tdata (abfd)->core->signal == 0) |
10716 | elf_tdata (abfd)->core->signal | |
10717 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10718 | offset += 4; | |
10719 | ||
24d3e51b | 10720 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10721 | elf_tdata (abfd)->core->lwpid |
10722 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10723 | offset += 4; | |
10724 | ||
24d3e51b | 10725 | /* Padding before pr_reg. */ |
b5430a3c | 10726 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10727 | offset += 4; |
10728 | ||
24d3e51b NC |
10729 | /* Make sure that there is enough data remaining in the note. */ |
10730 | if ((note->descsz - offset) < size) | |
10731 | return FALSE; | |
10732 | ||
aa1ed4a9 JB |
10733 | /* Make a ".reg/999" section and a ".reg" section. */ |
10734 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10735 | size, note->descpos + offset); | |
10736 | } | |
10737 | ||
10738 | static bfd_boolean | |
10739 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10740 | { | |
544c67cd JB |
10741 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10742 | ||
aa1ed4a9 JB |
10743 | switch (note->type) |
10744 | { | |
10745 | case NT_PRSTATUS: | |
544c67cd JB |
10746 | if (bed->elf_backend_grok_freebsd_prstatus) |
10747 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10748 | return TRUE; | |
aa1ed4a9 JB |
10749 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10750 | ||
10751 | case NT_FPREGSET: | |
10752 | return elfcore_grok_prfpreg (abfd, note); | |
10753 | ||
10754 | case NT_PRPSINFO: | |
10755 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10756 | ||
10757 | case NT_FREEBSD_THRMISC: | |
10758 | if (note->namesz == 8) | |
10759 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10760 | else | |
10761 | return TRUE; | |
10762 | ||
ddb2bbcf JB |
10763 | case NT_FREEBSD_PROCSTAT_PROC: |
10764 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10765 | note); | |
10766 | ||
10767 | case NT_FREEBSD_PROCSTAT_FILES: | |
10768 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10769 | note); | |
10770 | ||
10771 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10772 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10773 | note); | |
10774 | ||
3350c5f5 | 10775 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10776 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10777 | |
aa1ed4a9 JB |
10778 | case NT_X86_XSTATE: |
10779 | if (note->namesz == 8) | |
10780 | return elfcore_grok_xstatereg (abfd, note); | |
10781 | else | |
10782 | return TRUE; | |
10783 | ||
e6f3b9c3 JB |
10784 | case NT_FREEBSD_PTLWPINFO: |
10785 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10786 | note); | |
10787 | ||
6d5be5d6 JB |
10788 | case NT_ARM_VFP: |
10789 | return elfcore_grok_arm_vfp (abfd, note); | |
10790 | ||
aa1ed4a9 JB |
10791 | default: |
10792 | return TRUE; | |
10793 | } | |
10794 | } | |
10795 | ||
b34976b6 | 10796 | static bfd_boolean |
217aa764 | 10797 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10798 | { |
10799 | char *cp; | |
10800 | ||
10801 | cp = strchr (note->namedata, '@'); | |
10802 | if (cp != NULL) | |
10803 | { | |
d2b64500 | 10804 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10805 | return TRUE; |
50b2bdb7 | 10806 | } |
b34976b6 | 10807 | return FALSE; |
50b2bdb7 AM |
10808 | } |
10809 | ||
b34976b6 | 10810 | static bfd_boolean |
217aa764 | 10811 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10812 | { |
80a04378 NC |
10813 | if (note->descsz <= 0x7c + 31) |
10814 | return FALSE; | |
10815 | ||
50b2bdb7 | 10816 | /* Signal number at offset 0x08. */ |
228e534f | 10817 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10818 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10819 | ||
10820 | /* Process ID at offset 0x50. */ | |
228e534f | 10821 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10822 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10823 | ||
10824 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10825 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10826 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10827 | ||
7720ba9f MK |
10828 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10829 | note); | |
50b2bdb7 AM |
10830 | } |
10831 | ||
b34976b6 | 10832 | static bfd_boolean |
217aa764 | 10833 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10834 | { |
10835 | int lwp; | |
10836 | ||
10837 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10838 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10839 | |
58e07198 | 10840 | switch (note->type) |
50b2bdb7 | 10841 | { |
58e07198 | 10842 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10843 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10844 | find this note before any of the others, which is fine, |
10845 | since the kernel writes this note out first when it | |
10846 | creates a core file. */ | |
50b2bdb7 | 10847 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10848 | #ifdef NT_NETBSDCORE_AUXV |
10849 | case NT_NETBSDCORE_AUXV: | |
10850 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10851 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
06d949ec KR |
10852 | #endif |
10853 | #ifdef NT_NETBSDCORE_LWPSTATUS | |
10854 | case NT_NETBSDCORE_LWPSTATUS: | |
10855 | return elfcore_make_note_pseudosection (abfd, | |
10856 | ".note.netbsdcore.lwpstatus", | |
10857 | note); | |
58e07198 CZ |
10858 | #endif |
10859 | default: | |
10860 | break; | |
50b2bdb7 AM |
10861 | } |
10862 | ||
06d949ec | 10863 | /* As of March 2020 there are no other machine-independent notes |
b4db1224 JT |
10864 | defined for NetBSD core files. If the note type is less |
10865 | than the start of the machine-dependent note types, we don't | |
10866 | understand it. */ | |
47d9a591 | 10867 | |
b4db1224 | 10868 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10869 | return TRUE; |
50b2bdb7 AM |
10870 | |
10871 | ||
10872 | switch (bfd_get_arch (abfd)) | |
10873 | { | |
08a40648 AM |
10874 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10875 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 | 10876 | |
015ec493 | 10877 | case bfd_arch_aarch64: |
50b2bdb7 AM |
10878 | case bfd_arch_alpha: |
10879 | case bfd_arch_sparc: | |
10880 | switch (note->type) | |
08a40648 AM |
10881 | { |
10882 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10883 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10884 | |
08a40648 AM |
10885 | case NT_NETBSDCORE_FIRSTMACH+2: |
10886 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10887 | |
08a40648 AM |
10888 | default: |
10889 | return TRUE; | |
10890 | } | |
50b2bdb7 | 10891 | |
58e07198 CZ |
10892 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
10893 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
10894 | structure which lacks GBR. */ | |
10895 | ||
10896 | case bfd_arch_sh: | |
10897 | switch (note->type) | |
10898 | { | |
10899 | case NT_NETBSDCORE_FIRSTMACH+3: | |
10900 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10901 | ||
10902 | case NT_NETBSDCORE_FIRSTMACH+5: | |
10903 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10904 | ||
10905 | default: | |
10906 | return TRUE; | |
10907 | } | |
10908 | ||
08a40648 AM |
10909 | /* On all other arch's, PT_GETREGS == mach+1 and |
10910 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10911 | |
10912 | default: | |
10913 | switch (note->type) | |
08a40648 AM |
10914 | { |
10915 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10916 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10917 | |
08a40648 AM |
10918 | case NT_NETBSDCORE_FIRSTMACH+3: |
10919 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10920 | |
08a40648 AM |
10921 | default: |
10922 | return TRUE; | |
10923 | } | |
50b2bdb7 AM |
10924 | } |
10925 | /* NOTREACHED */ | |
10926 | } | |
10927 | ||
67cc5033 MK |
10928 | static bfd_boolean |
10929 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10930 | { | |
80a04378 NC |
10931 | if (note->descsz <= 0x48 + 31) |
10932 | return FALSE; | |
10933 | ||
67cc5033 | 10934 | /* Signal number at offset 0x08. */ |
228e534f | 10935 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10936 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10937 | ||
10938 | /* Process ID at offset 0x20. */ | |
228e534f | 10939 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10940 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10941 | ||
10942 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10943 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10944 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10945 | ||
10946 | return TRUE; | |
10947 | } | |
10948 | ||
10949 | static bfd_boolean | |
10950 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10951 | { | |
10952 | if (note->type == NT_OPENBSD_PROCINFO) | |
10953 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10954 | ||
10955 | if (note->type == NT_OPENBSD_REGS) | |
10956 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10957 | ||
10958 | if (note->type == NT_OPENBSD_FPREGS) | |
10959 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10960 | ||
10961 | if (note->type == NT_OPENBSD_XFPREGS) | |
10962 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10963 | ||
10964 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 10965 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
10966 | |
10967 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10968 | { | |
10969 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10970 | SEC_HAS_CONTENTS); | |
10971 | ||
10972 | if (sect == NULL) | |
10973 | return FALSE; | |
10974 | sect->size = note->descsz; | |
10975 | sect->filepos = note->descpos; | |
10976 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10977 | ||
10978 | return TRUE; | |
10979 | } | |
10980 | ||
10981 | return TRUE; | |
10982 | } | |
10983 | ||
07c6e936 | 10984 | static bfd_boolean |
d3fd4074 | 10985 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10986 | { |
10987 | void *ddata = note->descdata; | |
10988 | char buf[100]; | |
10989 | char *name; | |
10990 | asection *sect; | |
f8843e87 AM |
10991 | short sig; |
10992 | unsigned flags; | |
07c6e936 | 10993 | |
80a04378 NC |
10994 | if (note->descsz < 16) |
10995 | return FALSE; | |
10996 | ||
07c6e936 | 10997 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10998 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10999 | |
f8843e87 AM |
11000 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
11001 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
11002 | ||
11003 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
11004 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
11005 | |
11006 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
11007 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
11008 | { | |
228e534f AM |
11009 | elf_tdata (abfd)->core->signal = sig; |
11010 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 11011 | } |
07c6e936 | 11012 | |
f8843e87 AM |
11013 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
11014 | do not come from signals so we make sure we set the current | |
11015 | thread just in case. */ | |
11016 | if (flags & 0x00000080) | |
228e534f | 11017 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
11018 | |
11019 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 11020 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 11021 | |
a50b1753 | 11022 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
11023 | if (name == NULL) |
11024 | return FALSE; | |
11025 | strcpy (name, buf); | |
11026 | ||
117ed4f8 | 11027 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
11028 | if (sect == NULL) |
11029 | return FALSE; | |
11030 | ||
07d6d2b8 AM |
11031 | sect->size = note->descsz; |
11032 | sect->filepos = note->descpos; | |
07c6e936 NC |
11033 | sect->alignment_power = 2; |
11034 | ||
11035 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
11036 | } | |
11037 | ||
11038 | static bfd_boolean | |
d69f560c KW |
11039 | elfcore_grok_nto_regs (bfd *abfd, |
11040 | Elf_Internal_Note *note, | |
d3fd4074 | 11041 | long tid, |
d69f560c | 11042 | char *base) |
07c6e936 NC |
11043 | { |
11044 | char buf[100]; | |
11045 | char *name; | |
11046 | asection *sect; | |
11047 | ||
d69f560c | 11048 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 11049 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 11050 | |
a50b1753 | 11051 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
11052 | if (name == NULL) |
11053 | return FALSE; | |
11054 | strcpy (name, buf); | |
11055 | ||
117ed4f8 | 11056 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
11057 | if (sect == NULL) |
11058 | return FALSE; | |
11059 | ||
07d6d2b8 AM |
11060 | sect->size = note->descsz; |
11061 | sect->filepos = note->descpos; | |
07c6e936 NC |
11062 | sect->alignment_power = 2; |
11063 | ||
f8843e87 | 11064 | /* This is the current thread. */ |
228e534f | 11065 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 11066 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
11067 | |
11068 | return TRUE; | |
07c6e936 NC |
11069 | } |
11070 | ||
11071 | #define BFD_QNT_CORE_INFO 7 | |
11072 | #define BFD_QNT_CORE_STATUS 8 | |
11073 | #define BFD_QNT_CORE_GREG 9 | |
11074 | #define BFD_QNT_CORE_FPREG 10 | |
11075 | ||
11076 | static bfd_boolean | |
217aa764 | 11077 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
11078 | { |
11079 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 11080 | tid from the previous call to pass down to the next gregs |
07c6e936 | 11081 | function. */ |
d3fd4074 | 11082 | static long tid = 1; |
07c6e936 NC |
11083 | |
11084 | switch (note->type) | |
11085 | { | |
d69f560c KW |
11086 | case BFD_QNT_CORE_INFO: |
11087 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
11088 | case BFD_QNT_CORE_STATUS: | |
11089 | return elfcore_grok_nto_status (abfd, note, &tid); | |
11090 | case BFD_QNT_CORE_GREG: | |
11091 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
11092 | case BFD_QNT_CORE_FPREG: | |
11093 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
11094 | default: | |
11095 | return TRUE; | |
07c6e936 NC |
11096 | } |
11097 | } | |
11098 | ||
b15fa79e AM |
11099 | static bfd_boolean |
11100 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
11101 | { | |
11102 | char *name; | |
11103 | asection *sect; | |
11104 | size_t len; | |
11105 | ||
11106 | /* Use note name as section name. */ | |
11107 | len = note->namesz; | |
a50b1753 | 11108 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
11109 | if (name == NULL) |
11110 | return FALSE; | |
11111 | memcpy (name, note->namedata, len); | |
11112 | name[len - 1] = '\0'; | |
11113 | ||
11114 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
11115 | if (sect == NULL) | |
11116 | return FALSE; | |
11117 | ||
07d6d2b8 AM |
11118 | sect->size = note->descsz; |
11119 | sect->filepos = note->descpos; | |
b15fa79e AM |
11120 | sect->alignment_power = 1; |
11121 | ||
11122 | return TRUE; | |
11123 | } | |
11124 | ||
7c76fa91 MS |
11125 | /* Function: elfcore_write_note |
11126 | ||
47d9a591 | 11127 | Inputs: |
a39f3346 | 11128 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
11129 | name of note |
11130 | type of note | |
11131 | data for note | |
11132 | size of data for note | |
11133 | ||
a39f3346 AM |
11134 | Writes note to end of buffer. ELF64 notes are written exactly as |
11135 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
11136 | that they ought to have 8-byte namesz and descsz field, and have | |
11137 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
11138 | ||
7c76fa91 | 11139 | Return: |
a39f3346 | 11140 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
11141 | |
11142 | char * | |
a39f3346 | 11143 | elfcore_write_note (bfd *abfd, |
217aa764 | 11144 | char *buf, |
a39f3346 | 11145 | int *bufsiz, |
217aa764 | 11146 | const char *name, |
a39f3346 | 11147 | int type, |
217aa764 | 11148 | const void *input, |
a39f3346 | 11149 | int size) |
7c76fa91 MS |
11150 | { |
11151 | Elf_External_Note *xnp; | |
d4c88bbb | 11152 | size_t namesz; |
d4c88bbb | 11153 | size_t newspace; |
a39f3346 | 11154 | char *dest; |
7c76fa91 | 11155 | |
d4c88bbb | 11156 | namesz = 0; |
d4c88bbb | 11157 | if (name != NULL) |
a39f3346 | 11158 | namesz = strlen (name) + 1; |
d4c88bbb | 11159 | |
a39f3346 | 11160 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 11161 | |
a50b1753 | 11162 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
11163 | if (buf == NULL) |
11164 | return buf; | |
a39f3346 | 11165 | dest = buf + *bufsiz; |
7c76fa91 MS |
11166 | *bufsiz += newspace; |
11167 | xnp = (Elf_External_Note *) dest; | |
11168 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
11169 | H_PUT_32 (abfd, size, xnp->descsz); | |
11170 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
11171 | dest = xnp->name; |
11172 | if (name != NULL) | |
11173 | { | |
11174 | memcpy (dest, name, namesz); | |
11175 | dest += namesz; | |
a39f3346 | 11176 | while (namesz & 3) |
d4c88bbb AM |
11177 | { |
11178 | *dest++ = '\0'; | |
a39f3346 | 11179 | ++namesz; |
d4c88bbb AM |
11180 | } |
11181 | } | |
11182 | memcpy (dest, input, size); | |
a39f3346 AM |
11183 | dest += size; |
11184 | while (size & 3) | |
11185 | { | |
11186 | *dest++ = '\0'; | |
11187 | ++size; | |
11188 | } | |
11189 | return buf; | |
7c76fa91 MS |
11190 | } |
11191 | ||
602f1657 AM |
11192 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11193 | possible string truncation. The "truncation" is not a bug. We | |
11194 | have an external representation of structs with fields that are not | |
11195 | necessarily NULL terminated and corresponding internal | |
11196 | representation fields that are one larger so that they can always | |
11197 | be NULL terminated. | |
11198 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11199 | diagnostics inside functions, giving a hard error if you try to use | |
11200 | the finer control available with later versions. | |
11201 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11202 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11203 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11204 | (*) Depending on your system header files! */ | |
d99b4b92 | 11205 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11206 | # pragma GCC diagnostic push |
11207 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11208 | #endif |
7c76fa91 | 11209 | char * |
217aa764 AM |
11210 | elfcore_write_prpsinfo (bfd *abfd, |
11211 | char *buf, | |
11212 | int *bufsiz, | |
11213 | const char *fname, | |
11214 | const char *psargs) | |
7c76fa91 | 11215 | { |
183e98be AM |
11216 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11217 | ||
11218 | if (bed->elf_backend_write_core_note != NULL) | |
11219 | { | |
11220 | char *ret; | |
11221 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11222 | NT_PRPSINFO, fname, psargs); | |
11223 | if (ret != NULL) | |
11224 | return ret; | |
11225 | } | |
7c76fa91 | 11226 | |
1f20dca5 | 11227 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11228 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11229 | if (bed->s->elfclass == ELFCLASS32) |
11230 | { | |
602f1657 | 11231 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11232 | psinfo32_t data; |
11233 | int note_type = NT_PSINFO; | |
602f1657 | 11234 | # else |
183e98be AM |
11235 | prpsinfo32_t data; |
11236 | int note_type = NT_PRPSINFO; | |
602f1657 | 11237 | # endif |
183e98be AM |
11238 | |
11239 | memset (&data, 0, sizeof (data)); | |
11240 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11241 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11242 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11243 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11244 | } |
11245 | else | |
602f1657 | 11246 | # endif |
183e98be | 11247 | { |
602f1657 | 11248 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11249 | psinfo_t data; |
11250 | int note_type = NT_PSINFO; | |
602f1657 | 11251 | # else |
183e98be AM |
11252 | prpsinfo_t data; |
11253 | int note_type = NT_PRPSINFO; | |
602f1657 | 11254 | # endif |
7c76fa91 | 11255 | |
183e98be AM |
11256 | memset (&data, 0, sizeof (data)); |
11257 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11258 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11259 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11260 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11261 | } |
7c76fa91 MS |
11262 | #endif /* PSINFO_T or PRPSINFO_T */ |
11263 | ||
1f20dca5 UW |
11264 | free (buf); |
11265 | return NULL; | |
11266 | } | |
d99b4b92 | 11267 | #if GCC_VERSION >= 8000 |
602f1657 | 11268 | # pragma GCC diagnostic pop |
d99b4b92 | 11269 | #endif |
1f20dca5 | 11270 | |
70a38d42 SDJ |
11271 | char * |
11272 | elfcore_write_linux_prpsinfo32 | |
11273 | (bfd *abfd, char *buf, int *bufsiz, | |
11274 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11275 | { | |
a2f63b2e MR |
11276 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11277 | { | |
11278 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11279 | ||
11280 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11281 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11282 | &data, sizeof (data)); | |
11283 | } | |
11284 | else | |
11285 | { | |
11286 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11287 | |
a2f63b2e MR |
11288 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11289 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11290 | &data, sizeof (data)); | |
11291 | } | |
70a38d42 SDJ |
11292 | } |
11293 | ||
11294 | char * | |
11295 | elfcore_write_linux_prpsinfo64 | |
11296 | (bfd *abfd, char *buf, int *bufsiz, | |
11297 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11298 | { | |
3c9a7b0d MR |
11299 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11300 | { | |
11301 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11302 | ||
11303 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11304 | return elfcore_write_note (abfd, buf, bufsiz, | |
11305 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11306 | } | |
11307 | else | |
11308 | { | |
11309 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11310 | |
3c9a7b0d MR |
11311 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11312 | return elfcore_write_note (abfd, buf, bufsiz, | |
11313 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11314 | } | |
70a38d42 SDJ |
11315 | } |
11316 | ||
7c76fa91 | 11317 | char * |
217aa764 AM |
11318 | elfcore_write_prstatus (bfd *abfd, |
11319 | char *buf, | |
11320 | int *bufsiz, | |
11321 | long pid, | |
11322 | int cursig, | |
11323 | const void *gregs) | |
7c76fa91 | 11324 | { |
183e98be | 11325 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11326 | |
183e98be AM |
11327 | if (bed->elf_backend_write_core_note != NULL) |
11328 | { | |
11329 | char *ret; | |
11330 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11331 | NT_PRSTATUS, | |
11332 | pid, cursig, gregs); | |
11333 | if (ret != NULL) | |
11334 | return ret; | |
11335 | } | |
11336 | ||
1f20dca5 | 11337 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11338 | #if defined (HAVE_PRSTATUS32_T) |
11339 | if (bed->s->elfclass == ELFCLASS32) | |
11340 | { | |
11341 | prstatus32_t prstat; | |
11342 | ||
11343 | memset (&prstat, 0, sizeof (prstat)); | |
11344 | prstat.pr_pid = pid; | |
11345 | prstat.pr_cursig = cursig; | |
11346 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11347 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11348 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11349 | } | |
11350 | else | |
11351 | #endif | |
11352 | { | |
11353 | prstatus_t prstat; | |
11354 | ||
11355 | memset (&prstat, 0, sizeof (prstat)); | |
11356 | prstat.pr_pid = pid; | |
11357 | prstat.pr_cursig = cursig; | |
11358 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11359 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11360 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11361 | } | |
7c76fa91 MS |
11362 | #endif /* HAVE_PRSTATUS_T */ |
11363 | ||
1f20dca5 UW |
11364 | free (buf); |
11365 | return NULL; | |
11366 | } | |
11367 | ||
51316059 MS |
11368 | #if defined (HAVE_LWPSTATUS_T) |
11369 | char * | |
217aa764 AM |
11370 | elfcore_write_lwpstatus (bfd *abfd, |
11371 | char *buf, | |
11372 | int *bufsiz, | |
11373 | long pid, | |
11374 | int cursig, | |
11375 | const void *gregs) | |
51316059 MS |
11376 | { |
11377 | lwpstatus_t lwpstat; | |
183e98be | 11378 | const char *note_name = "CORE"; |
51316059 MS |
11379 | |
11380 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11381 | lwpstat.pr_lwpid = pid >> 16; | |
11382 | lwpstat.pr_cursig = cursig; | |
11383 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11384 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11385 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11386 | #if !defined(gregs) | |
11387 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11388 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11389 | #else | |
11390 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11391 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11392 | #endif | |
11393 | #endif | |
47d9a591 | 11394 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11395 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11396 | } | |
11397 | #endif /* HAVE_LWPSTATUS_T */ | |
11398 | ||
7c76fa91 MS |
11399 | #if defined (HAVE_PSTATUS_T) |
11400 | char * | |
217aa764 AM |
11401 | elfcore_write_pstatus (bfd *abfd, |
11402 | char *buf, | |
11403 | int *bufsiz, | |
11404 | long pid, | |
6c10990d NC |
11405 | int cursig ATTRIBUTE_UNUSED, |
11406 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11407 | { |
183e98be AM |
11408 | const char *note_name = "CORE"; |
11409 | #if defined (HAVE_PSTATUS32_T) | |
11410 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11411 | |
183e98be AM |
11412 | if (bed->s->elfclass == ELFCLASS32) |
11413 | { | |
11414 | pstatus32_t pstat; | |
11415 | ||
11416 | memset (&pstat, 0, sizeof (pstat)); | |
11417 | pstat.pr_pid = pid & 0xffff; | |
11418 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11419 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11420 | return buf; | |
11421 | } | |
11422 | else | |
11423 | #endif | |
11424 | { | |
11425 | pstatus_t pstat; | |
11426 | ||
11427 | memset (&pstat, 0, sizeof (pstat)); | |
11428 | pstat.pr_pid = pid & 0xffff; | |
11429 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11430 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11431 | return buf; | |
11432 | } | |
7c76fa91 MS |
11433 | } |
11434 | #endif /* HAVE_PSTATUS_T */ | |
11435 | ||
11436 | char * | |
217aa764 AM |
11437 | elfcore_write_prfpreg (bfd *abfd, |
11438 | char *buf, | |
11439 | int *bufsiz, | |
11440 | const void *fpregs, | |
11441 | int size) | |
7c76fa91 | 11442 | { |
183e98be | 11443 | const char *note_name = "CORE"; |
47d9a591 | 11444 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11445 | note_name, NT_FPREGSET, fpregs, size); |
11446 | } | |
11447 | ||
11448 | char * | |
217aa764 AM |
11449 | elfcore_write_prxfpreg (bfd *abfd, |
11450 | char *buf, | |
11451 | int *bufsiz, | |
11452 | const void *xfpregs, | |
11453 | int size) | |
7c76fa91 MS |
11454 | { |
11455 | char *note_name = "LINUX"; | |
47d9a591 | 11456 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11457 | note_name, NT_PRXFPREG, xfpregs, size); |
11458 | } | |
11459 | ||
4339cae0 L |
11460 | char * |
11461 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11462 | const void *xfpregs, int size) | |
11463 | { | |
97de3545 JB |
11464 | char *note_name; |
11465 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11466 | note_name = "FreeBSD"; | |
11467 | else | |
11468 | note_name = "LINUX"; | |
4339cae0 L |
11469 | return elfcore_write_note (abfd, buf, bufsiz, |
11470 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11471 | } | |
11472 | ||
97753bd5 AM |
11473 | char * |
11474 | elfcore_write_ppc_vmx (bfd *abfd, | |
11475 | char *buf, | |
11476 | int *bufsiz, | |
11477 | const void *ppc_vmx, | |
11478 | int size) | |
11479 | { | |
11480 | char *note_name = "LINUX"; | |
11481 | return elfcore_write_note (abfd, buf, bufsiz, | |
11482 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11483 | } | |
11484 | ||
89eeb0bc LM |
11485 | char * |
11486 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11487 | char *buf, |
11488 | int *bufsiz, | |
11489 | const void *ppc_vsx, | |
11490 | int size) | |
89eeb0bc LM |
11491 | { |
11492 | char *note_name = "LINUX"; | |
11493 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11494 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11495 | } |
11496 | ||
cb2366c1 EBM |
11497 | char * |
11498 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11499 | char *buf, |
11500 | int *bufsiz, | |
11501 | const void *ppc_tar, | |
11502 | int size) | |
cb2366c1 EBM |
11503 | { |
11504 | char *note_name = "LINUX"; | |
11505 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11506 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11507 | } |
11508 | ||
11509 | char * | |
11510 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11511 | char *buf, |
11512 | int *bufsiz, | |
11513 | const void *ppc_ppr, | |
11514 | int size) | |
cb2366c1 EBM |
11515 | { |
11516 | char *note_name = "LINUX"; | |
11517 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11518 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11519 | } |
11520 | ||
11521 | char * | |
11522 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11523 | char *buf, |
11524 | int *bufsiz, | |
11525 | const void *ppc_dscr, | |
11526 | int size) | |
cb2366c1 EBM |
11527 | { |
11528 | char *note_name = "LINUX"; | |
11529 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11530 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11531 | } |
11532 | ||
11533 | char * | |
11534 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11535 | char *buf, |
11536 | int *bufsiz, | |
11537 | const void *ppc_ebb, | |
11538 | int size) | |
cb2366c1 EBM |
11539 | { |
11540 | char *note_name = "LINUX"; | |
11541 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11542 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11543 | } |
11544 | ||
11545 | char * | |
11546 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11547 | char *buf, |
11548 | int *bufsiz, | |
11549 | const void *ppc_pmu, | |
11550 | int size) | |
cb2366c1 EBM |
11551 | { |
11552 | char *note_name = "LINUX"; | |
11553 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11554 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11555 | } |
11556 | ||
11557 | char * | |
11558 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11559 | char *buf, |
11560 | int *bufsiz, | |
11561 | const void *ppc_tm_cgpr, | |
11562 | int size) | |
cb2366c1 EBM |
11563 | { |
11564 | char *note_name = "LINUX"; | |
11565 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11566 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11567 | } |
11568 | ||
11569 | char * | |
11570 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11571 | char *buf, |
11572 | int *bufsiz, | |
11573 | const void *ppc_tm_cfpr, | |
11574 | int size) | |
cb2366c1 EBM |
11575 | { |
11576 | char *note_name = "LINUX"; | |
11577 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11578 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11579 | } |
11580 | ||
11581 | char * | |
11582 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11583 | char *buf, |
11584 | int *bufsiz, | |
11585 | const void *ppc_tm_cvmx, | |
11586 | int size) | |
cb2366c1 EBM |
11587 | { |
11588 | char *note_name = "LINUX"; | |
11589 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11590 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11591 | } |
11592 | ||
11593 | char * | |
11594 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11595 | char *buf, |
11596 | int *bufsiz, | |
11597 | const void *ppc_tm_cvsx, | |
11598 | int size) | |
cb2366c1 EBM |
11599 | { |
11600 | char *note_name = "LINUX"; | |
11601 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11602 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11603 | } |
11604 | ||
11605 | char * | |
11606 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11607 | char *buf, |
11608 | int *bufsiz, | |
11609 | const void *ppc_tm_spr, | |
11610 | int size) | |
cb2366c1 EBM |
11611 | { |
11612 | char *note_name = "LINUX"; | |
11613 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11614 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11615 | } |
11616 | ||
11617 | char * | |
11618 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11619 | char *buf, |
11620 | int *bufsiz, | |
11621 | const void *ppc_tm_ctar, | |
11622 | int size) | |
cb2366c1 EBM |
11623 | { |
11624 | char *note_name = "LINUX"; | |
11625 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11626 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11627 | } |
11628 | ||
11629 | char * | |
11630 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11631 | char *buf, |
11632 | int *bufsiz, | |
11633 | const void *ppc_tm_cppr, | |
11634 | int size) | |
cb2366c1 EBM |
11635 | { |
11636 | char *note_name = "LINUX"; | |
11637 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11638 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11639 | } |
11640 | ||
11641 | char * | |
11642 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11643 | char *buf, |
11644 | int *bufsiz, | |
11645 | const void *ppc_tm_cdscr, | |
11646 | int size) | |
cb2366c1 EBM |
11647 | { |
11648 | char *note_name = "LINUX"; | |
11649 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11650 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11651 | } |
11652 | ||
0675e188 UW |
11653 | static char * |
11654 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11655 | char *buf, | |
11656 | int *bufsiz, | |
11657 | const void *s390_high_gprs, | |
11658 | int size) | |
11659 | { | |
11660 | char *note_name = "LINUX"; | |
11661 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11662 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11663 | s390_high_gprs, size); |
11664 | } | |
11665 | ||
d7eeb400 MS |
11666 | char * |
11667 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11668 | char *buf, |
11669 | int *bufsiz, | |
11670 | const void *s390_timer, | |
11671 | int size) | |
d7eeb400 MS |
11672 | { |
11673 | char *note_name = "LINUX"; | |
11674 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11675 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11676 | } |
11677 | ||
11678 | char * | |
11679 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11680 | char *buf, |
11681 | int *bufsiz, | |
11682 | const void *s390_todcmp, | |
11683 | int size) | |
d7eeb400 MS |
11684 | { |
11685 | char *note_name = "LINUX"; | |
11686 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11687 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11688 | } |
11689 | ||
11690 | char * | |
11691 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11692 | char *buf, |
11693 | int *bufsiz, | |
11694 | const void *s390_todpreg, | |
11695 | int size) | |
d7eeb400 MS |
11696 | { |
11697 | char *note_name = "LINUX"; | |
11698 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11699 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11700 | } |
11701 | ||
11702 | char * | |
11703 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11704 | char *buf, |
11705 | int *bufsiz, | |
11706 | const void *s390_ctrs, | |
11707 | int size) | |
d7eeb400 MS |
11708 | { |
11709 | char *note_name = "LINUX"; | |
11710 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11711 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11712 | } |
11713 | ||
11714 | char * | |
11715 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11716 | char *buf, |
11717 | int *bufsiz, | |
11718 | const void *s390_prefix, | |
11719 | int size) | |
d7eeb400 MS |
11720 | { |
11721 | char *note_name = "LINUX"; | |
11722 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11723 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11724 | } |
11725 | ||
355b81d9 UW |
11726 | char * |
11727 | elfcore_write_s390_last_break (bfd *abfd, | |
11728 | char *buf, | |
11729 | int *bufsiz, | |
11730 | const void *s390_last_break, | |
11731 | int size) | |
11732 | { | |
11733 | char *note_name = "LINUX"; | |
11734 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11735 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11736 | s390_last_break, size); |
11737 | } | |
11738 | ||
11739 | char * | |
11740 | elfcore_write_s390_system_call (bfd *abfd, | |
11741 | char *buf, | |
11742 | int *bufsiz, | |
11743 | const void *s390_system_call, | |
11744 | int size) | |
11745 | { | |
11746 | char *note_name = "LINUX"; | |
11747 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11748 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11749 | s390_system_call, size); |
11750 | } | |
11751 | ||
abb3f6cc NC |
11752 | char * |
11753 | elfcore_write_s390_tdb (bfd *abfd, | |
11754 | char *buf, | |
11755 | int *bufsiz, | |
11756 | const void *s390_tdb, | |
11757 | int size) | |
11758 | { | |
11759 | char *note_name = "LINUX"; | |
11760 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11761 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11762 | } |
11763 | ||
4ef9f41a AA |
11764 | char * |
11765 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11766 | char *buf, | |
11767 | int *bufsiz, | |
11768 | const void *s390_vxrs_low, | |
11769 | int size) | |
11770 | { | |
11771 | char *note_name = "LINUX"; | |
11772 | return elfcore_write_note (abfd, buf, bufsiz, | |
11773 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11774 | } | |
11775 | ||
11776 | char * | |
11777 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11778 | char *buf, | |
11779 | int *bufsiz, | |
11780 | const void *s390_vxrs_high, | |
11781 | int size) | |
11782 | { | |
11783 | char *note_name = "LINUX"; | |
11784 | return elfcore_write_note (abfd, buf, bufsiz, | |
11785 | note_name, NT_S390_VXRS_HIGH, | |
11786 | s390_vxrs_high, size); | |
11787 | } | |
11788 | ||
88ab90e8 AA |
11789 | char * |
11790 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11791 | char *buf, | |
11792 | int *bufsiz, | |
11793 | const void *s390_gs_cb, | |
11794 | int size) | |
11795 | { | |
11796 | char *note_name = "LINUX"; | |
11797 | return elfcore_write_note (abfd, buf, bufsiz, | |
11798 | note_name, NT_S390_GS_CB, | |
11799 | s390_gs_cb, size); | |
11800 | } | |
11801 | ||
11802 | char * | |
11803 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11804 | char *buf, | |
11805 | int *bufsiz, | |
11806 | const void *s390_gs_bc, | |
11807 | int size) | |
11808 | { | |
11809 | char *note_name = "LINUX"; | |
11810 | return elfcore_write_note (abfd, buf, bufsiz, | |
11811 | note_name, NT_S390_GS_BC, | |
11812 | s390_gs_bc, size); | |
11813 | } | |
11814 | ||
faa9a424 UW |
11815 | char * |
11816 | elfcore_write_arm_vfp (bfd *abfd, | |
11817 | char *buf, | |
11818 | int *bufsiz, | |
11819 | const void *arm_vfp, | |
11820 | int size) | |
11821 | { | |
11822 | char *note_name = "LINUX"; | |
11823 | return elfcore_write_note (abfd, buf, bufsiz, | |
11824 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11825 | } | |
11826 | ||
652451f8 YZ |
11827 | char * |
11828 | elfcore_write_aarch_tls (bfd *abfd, | |
11829 | char *buf, | |
11830 | int *bufsiz, | |
11831 | const void *aarch_tls, | |
11832 | int size) | |
11833 | { | |
11834 | char *note_name = "LINUX"; | |
11835 | return elfcore_write_note (abfd, buf, bufsiz, | |
11836 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11837 | } | |
11838 | ||
11839 | char * | |
11840 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11841 | char *buf, | |
11842 | int *bufsiz, | |
11843 | const void *aarch_hw_break, | |
11844 | int size) | |
11845 | { | |
11846 | char *note_name = "LINUX"; | |
11847 | return elfcore_write_note (abfd, buf, bufsiz, | |
11848 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11849 | } | |
11850 | ||
11851 | char * | |
11852 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11853 | char *buf, | |
11854 | int *bufsiz, | |
11855 | const void *aarch_hw_watch, | |
11856 | int size) | |
11857 | { | |
11858 | char *note_name = "LINUX"; | |
11859 | return elfcore_write_note (abfd, buf, bufsiz, | |
11860 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11861 | } | |
11862 | ||
ad1cc4e4 AH |
11863 | char * |
11864 | elfcore_write_aarch_sve (bfd *abfd, | |
11865 | char *buf, | |
11866 | int *bufsiz, | |
11867 | const void *aarch_sve, | |
11868 | int size) | |
11869 | { | |
11870 | char *note_name = "LINUX"; | |
11871 | return elfcore_write_note (abfd, buf, bufsiz, | |
11872 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11873 | } | |
11874 | ||
e6c3b5bf AH |
11875 | char * |
11876 | elfcore_write_aarch_pauth (bfd *abfd, | |
11877 | char *buf, | |
11878 | int *bufsiz, | |
11879 | const void *aarch_pauth, | |
11880 | int size) | |
11881 | { | |
11882 | char *note_name = "LINUX"; | |
11883 | return elfcore_write_note (abfd, buf, bufsiz, | |
11884 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11885 | } | |
11886 | ||
27456742 AK |
11887 | char * |
11888 | elfcore_write_arc_v2 (bfd *abfd, | |
11889 | char *buf, | |
11890 | int *bufsiz, | |
11891 | const void *arc_v2, | |
11892 | int size) | |
11893 | { | |
11894 | char *note_name = "LINUX"; | |
11895 | return elfcore_write_note (abfd, buf, bufsiz, | |
11896 | note_name, NT_ARC_V2, arc_v2, size); | |
11897 | } | |
11898 | ||
bb864ac1 CES |
11899 | char * |
11900 | elfcore_write_register_note (bfd *abfd, | |
11901 | char *buf, | |
11902 | int *bufsiz, | |
11903 | const char *section, | |
11904 | const void *data, | |
11905 | int size) | |
11906 | { | |
11907 | if (strcmp (section, ".reg2") == 0) | |
11908 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11909 | if (strcmp (section, ".reg-xfp") == 0) | |
11910 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11911 | if (strcmp (section, ".reg-xstate") == 0) |
11912 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11913 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11914 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11915 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11916 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11917 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11918 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11919 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11920 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11921 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11922 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11923 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11924 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11925 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11926 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11927 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11928 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11929 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11930 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11931 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11932 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11933 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11934 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11935 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11936 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11937 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11938 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11939 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11940 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11941 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11942 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11943 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11944 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11945 | if (strcmp (section, ".reg-s390-timer") == 0) |
11946 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11947 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11948 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11949 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11950 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11951 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11952 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11953 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11954 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11955 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11956 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11957 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11958 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11959 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11960 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11961 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11962 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11963 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11964 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11965 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11966 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11967 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11968 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11969 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11970 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11971 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11972 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11973 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11974 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11975 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11976 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11977 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11978 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
11979 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
11980 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
27456742 AK |
11981 | if (strcmp (section, ".reg-arc-v2") == 0) |
11982 | return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11983 | return NULL; |
11984 | } | |
11985 | ||
b34976b6 | 11986 | static bfd_boolean |
276da9b3 L |
11987 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11988 | size_t align) | |
252b5132 | 11989 | { |
c044fabd | 11990 | char *p; |
252b5132 | 11991 | |
276da9b3 L |
11992 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11993 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11994 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11995 | align is less than 4, we use 4 byte alignment. */ | |
11996 | if (align < 4) | |
11997 | align = 4; | |
ef135d43 NC |
11998 | if (align != 4 && align != 8) |
11999 | return FALSE; | |
276da9b3 | 12000 | |
252b5132 RH |
12001 | p = buf; |
12002 | while (p < buf + size) | |
12003 | { | |
c044fabd | 12004 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
12005 | Elf_Internal_Note in; |
12006 | ||
baea7ef1 AM |
12007 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
12008 | return FALSE; | |
12009 | ||
dc810e39 | 12010 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 12011 | |
dc810e39 | 12012 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 12013 | in.namedata = xnp->name; |
baea7ef1 AM |
12014 | if (in.namesz > buf - in.namedata + size) |
12015 | return FALSE; | |
252b5132 | 12016 | |
dc810e39 | 12017 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 12018 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 12019 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
12020 | if (in.descsz != 0 |
12021 | && (in.descdata >= buf + size | |
12022 | || in.descsz > buf - in.descdata + size)) | |
12023 | return FALSE; | |
252b5132 | 12024 | |
718175fa | 12025 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 12026 | { |
718175fa JK |
12027 | default: |
12028 | return TRUE; | |
12029 | ||
12030 | case bfd_core: | |
f64e188b | 12031 | { |
8acbedd6 | 12032 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 12033 | struct |
718175fa | 12034 | { |
f64e188b | 12035 | const char * string; |
8acbedd6 | 12036 | size_t len; |
f64e188b | 12037 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 12038 | } |
f64e188b | 12039 | grokers[] = |
b15fa79e | 12040 | { |
8acbedd6 | 12041 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 12042 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
12043 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
12044 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
12045 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
864619bb KS |
12046 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
12047 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note) | |
f64e188b | 12048 | }; |
8acbedd6 | 12049 | #undef GROKER_ELEMENT |
f64e188b NC |
12050 | int i; |
12051 | ||
12052 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
12053 | { |
12054 | if (in.namesz >= grokers[i].len | |
12055 | && strncmp (in.namedata, grokers[i].string, | |
12056 | grokers[i].len) == 0) | |
12057 | { | |
12058 | if (! grokers[i].func (abfd, & in)) | |
12059 | return FALSE; | |
12060 | break; | |
12061 | } | |
12062 | } | |
f64e188b NC |
12063 | break; |
12064 | } | |
718175fa JK |
12065 | |
12066 | case bfd_object: | |
12067 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
12068 | { | |
12069 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
12070 | return FALSE; | |
12071 | } | |
e21e5835 NC |
12072 | else if (in.namesz == sizeof "stapsdt" |
12073 | && strcmp (in.namedata, "stapsdt") == 0) | |
12074 | { | |
12075 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
12076 | return FALSE; | |
12077 | } | |
718175fa | 12078 | break; |
08a40648 | 12079 | } |
252b5132 | 12080 | |
276da9b3 | 12081 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
12082 | } |
12083 | ||
718175fa JK |
12084 | return TRUE; |
12085 | } | |
12086 | ||
864619bb | 12087 | bfd_boolean |
276da9b3 L |
12088 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
12089 | size_t align) | |
718175fa JK |
12090 | { |
12091 | char *buf; | |
12092 | ||
957e1fc1 | 12093 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
12094 | return TRUE; |
12095 | ||
12096 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
12097 | return FALSE; | |
12098 | ||
2bb3687b | 12099 | buf = (char *) _bfd_malloc_and_read (abfd, size + 1, size); |
718175fa JK |
12100 | if (buf == NULL) |
12101 | return FALSE; | |
12102 | ||
f64e188b NC |
12103 | /* PR 17512: file: ec08f814 |
12104 | 0-termintate the buffer so that string searches will not overflow. */ | |
12105 | buf[size] = 0; | |
12106 | ||
2bb3687b | 12107 | if (!elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
12108 | { |
12109 | free (buf); | |
12110 | return FALSE; | |
12111 | } | |
12112 | ||
252b5132 | 12113 | free (buf); |
b34976b6 | 12114 | return TRUE; |
252b5132 | 12115 | } |
98d8431c JB |
12116 | \f |
12117 | /* Providing external access to the ELF program header table. */ | |
12118 | ||
12119 | /* Return an upper bound on the number of bytes required to store a | |
12120 | copy of ABFD's program header table entries. Return -1 if an error | |
12121 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12122 | |
98d8431c | 12123 | long |
217aa764 | 12124 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
12125 | { |
12126 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12127 | { | |
12128 | bfd_set_error (bfd_error_wrong_format); | |
12129 | return -1; | |
12130 | } | |
12131 | ||
936e320b | 12132 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
12133 | } |
12134 | ||
98d8431c JB |
12135 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
12136 | will be stored as an array of Elf_Internal_Phdr structures, as | |
12137 | defined in include/elf/internal.h. To find out how large the | |
12138 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
12139 | ||
12140 | Return the number of program header table entries read, or -1 if an | |
12141 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12142 | |
98d8431c | 12143 | int |
217aa764 | 12144 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
12145 | { |
12146 | int num_phdrs; | |
12147 | ||
12148 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12149 | { | |
12150 | bfd_set_error (bfd_error_wrong_format); | |
12151 | return -1; | |
12152 | } | |
12153 | ||
12154 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
12155 | if (num_phdrs != 0) |
12156 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
12157 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
12158 | |
12159 | return num_phdrs; | |
12160 | } | |
ae4221d7 | 12161 | |
db6751f2 | 12162 | enum elf_reloc_type_class |
7e612e98 AM |
12163 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
12164 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12165 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
12166 | { |
12167 | return reloc_class_normal; | |
12168 | } | |
f8df10f4 | 12169 | |
47d9a591 | 12170 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
12171 | relocation against a local symbol. */ |
12172 | ||
12173 | bfd_vma | |
217aa764 AM |
12174 | _bfd_elf_rela_local_sym (bfd *abfd, |
12175 | Elf_Internal_Sym *sym, | |
8517fae7 | 12176 | asection **psec, |
217aa764 | 12177 | Elf_Internal_Rela *rel) |
f8df10f4 | 12178 | { |
8517fae7 | 12179 | asection *sec = *psec; |
f8df10f4 JJ |
12180 | bfd_vma relocation; |
12181 | ||
6835821b AM |
12182 | relocation = (sec->output_section->vma |
12183 | + sec->output_offset | |
12184 | + sym->st_value); | |
f8df10f4 | 12185 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 12186 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 12187 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 12188 | { |
f8df10f4 | 12189 | rel->r_addend = |
8517fae7 | 12190 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 12191 | elf_section_data (sec)->sec_info, |
753731ee AM |
12192 | sym->st_value + rel->r_addend); |
12193 | if (sec != *psec) | |
12194 | { | |
12195 | /* If we have changed the section, and our original section is | |
12196 | marked with SEC_EXCLUDE, it means that the original | |
12197 | SEC_MERGE section has been completely subsumed in some | |
12198 | other SEC_MERGE section. In this case, we need to leave | |
12199 | some info around for --emit-relocs. */ | |
12200 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12201 | sec->kept_section = *psec; | |
12202 | sec = *psec; | |
12203 | } | |
8517fae7 AM |
12204 | rel->r_addend -= relocation; |
12205 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12206 | } |
12207 | return relocation; | |
12208 | } | |
c629eae0 JJ |
12209 | |
12210 | bfd_vma | |
217aa764 AM |
12211 | _bfd_elf_rel_local_sym (bfd *abfd, |
12212 | Elf_Internal_Sym *sym, | |
12213 | asection **psec, | |
12214 | bfd_vma addend) | |
47d9a591 | 12215 | { |
c629eae0 JJ |
12216 | asection *sec = *psec; |
12217 | ||
6835821b | 12218 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12219 | return sym->st_value + addend; |
12220 | ||
12221 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12222 | elf_section_data (sec)->sec_info, |
753731ee | 12223 | sym->st_value + addend); |
c629eae0 JJ |
12224 | } |
12225 | ||
37b01f6a DG |
12226 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12227 | the new offset within the section, based upon changes made to the | |
12228 | section. Returns -1 if the offset is now invalid. | |
12229 | The offset (in abnd out) is in target sized bytes, however big a | |
12230 | byte may be. */ | |
12231 | ||
c629eae0 | 12232 | bfd_vma |
217aa764 | 12233 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12234 | struct bfd_link_info *info, |
217aa764 AM |
12235 | asection *sec, |
12236 | bfd_vma offset) | |
c629eae0 | 12237 | { |
68bfbfcc | 12238 | switch (sec->sec_info_type) |
65765700 | 12239 | { |
dbaa2011 | 12240 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12241 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12242 | offset); | |
dbaa2011 | 12243 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12244 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12245 | |
65765700 | 12246 | default: |
310fd250 L |
12247 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12248 | { | |
37b01f6a | 12249 | /* Reverse the offset. */ |
310fd250 L |
12250 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12251 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12252 | |
12253 | /* address_size and sec->size are in octets. Convert | |
12254 | to bytes before subtracting the original offset. */ | |
61826503 | 12255 | offset = ((sec->size - address_size) |
bb294208 | 12256 | / bfd_octets_per_byte (abfd, sec) - offset); |
310fd250 | 12257 | } |
65765700 JJ |
12258 | return offset; |
12259 | } | |
c629eae0 | 12260 | } |
3333a7c3 RM |
12261 | \f |
12262 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12263 | reconstruct an ELF file by reading the segments out of remote memory | |
12264 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12265 | points to. If not null, *LOADBASEP is filled in with the difference | |
12266 | between the VMAs from which the segments were read, and the VMAs the | |
12267 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12268 | ||
12269 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12270 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12271 | should return zero on success or an `errno' code on failure. TEMPL must | |
12272 | be a BFD for an ELF target with the word size and byte order found in | |
12273 | the remote memory. */ | |
12274 | ||
12275 | bfd * | |
217aa764 AM |
12276 | bfd_elf_bfd_from_remote_memory |
12277 | (bfd *templ, | |
12278 | bfd_vma ehdr_vma, | |
f0a5d95a | 12279 | bfd_size_type size, |
217aa764 | 12280 | bfd_vma *loadbasep, |
fe78531d | 12281 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12282 | { |
12283 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12284 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12285 | } |
4c45e5c9 JJ |
12286 | \f |
12287 | long | |
c9727e01 AM |
12288 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12289 | long symcount ATTRIBUTE_UNUSED, | |
12290 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12291 | long dynsymcount, |
c9727e01 AM |
12292 | asymbol **dynsyms, |
12293 | asymbol **ret) | |
4c45e5c9 JJ |
12294 | { |
12295 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12296 | asection *relplt; | |
12297 | asymbol *s; | |
12298 | const char *relplt_name; | |
12299 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
12300 | arelent *p; | |
12301 | long count, i, n; | |
12302 | size_t size; | |
12303 | Elf_Internal_Shdr *hdr; | |
12304 | char *names; | |
12305 | asection *plt; | |
12306 | ||
8615f3f2 AM |
12307 | *ret = NULL; |
12308 | ||
90e3cdf2 JJ |
12309 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12310 | return 0; | |
12311 | ||
8615f3f2 AM |
12312 | if (dynsymcount <= 0) |
12313 | return 0; | |
12314 | ||
4c45e5c9 JJ |
12315 | if (!bed->plt_sym_val) |
12316 | return 0; | |
12317 | ||
12318 | relplt_name = bed->relplt_name; | |
12319 | if (relplt_name == NULL) | |
d35fd659 | 12320 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12321 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12322 | if (relplt == NULL) | |
12323 | return 0; | |
12324 | ||
12325 | hdr = &elf_section_data (relplt)->this_hdr; | |
12326 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12327 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12328 | return 0; | |
12329 | ||
12330 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12331 | if (plt == NULL) | |
12332 | return 0; | |
12333 | ||
12334 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 12335 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
12336 | return -1; |
12337 | ||
eea6121a | 12338 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12339 | size = count * sizeof (asymbol); |
12340 | p = relplt->relocation; | |
cb53bf42 | 12341 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12342 | { |
12343 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12344 | if (p->addend != 0) | |
12345 | { | |
12346 | #ifdef BFD64 | |
12347 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12348 | #else | |
12349 | size += sizeof ("+0x") - 1 + 8; | |
12350 | #endif | |
12351 | } | |
12352 | } | |
4c45e5c9 | 12353 | |
a50b1753 | 12354 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12355 | if (s == NULL) |
12356 | return -1; | |
12357 | ||
12358 | names = (char *) (s + count); | |
12359 | p = relplt->relocation; | |
12360 | n = 0; | |
cb53bf42 | 12361 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12362 | { |
12363 | size_t len; | |
12364 | bfd_vma addr; | |
12365 | ||
12366 | addr = bed->plt_sym_val (i, plt, p); | |
12367 | if (addr == (bfd_vma) -1) | |
12368 | continue; | |
12369 | ||
12370 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12371 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12372 | we are defining a symbol, ensure one of them is set. */ | |
12373 | if ((s->flags & BSF_LOCAL) == 0) | |
12374 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12375 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12376 | s->section = plt; |
12377 | s->value = addr - plt->vma; | |
12378 | s->name = names; | |
8f39ba8e | 12379 | s->udata.p = NULL; |
4c45e5c9 JJ |
12380 | len = strlen ((*p->sym_ptr_ptr)->name); |
12381 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12382 | names += len; | |
041de40d AM |
12383 | if (p->addend != 0) |
12384 | { | |
1d770845 | 12385 | char buf[30], *a; |
d324f6d6 | 12386 | |
041de40d AM |
12387 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12388 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12389 | bfd_sprintf_vma (abfd, buf, p->addend); |
12390 | for (a = buf; *a == '0'; ++a) | |
12391 | ; | |
12392 | len = strlen (a); | |
12393 | memcpy (names, a, len); | |
12394 | names += len; | |
041de40d | 12395 | } |
4c45e5c9 JJ |
12396 | memcpy (names, "@plt", sizeof ("@plt")); |
12397 | names += sizeof ("@plt"); | |
8f39ba8e | 12398 | ++s, ++n; |
4c45e5c9 JJ |
12399 | } |
12400 | ||
12401 | return n; | |
12402 | } | |
3d7f7666 | 12403 | |
821e6ff6 AM |
12404 | /* It is only used by x86-64 so far. |
12405 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12406 | but current usage would allow all of _bfd_std_section to be zero. */ |
12407 | static const asymbol lcomm_sym | |
12408 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12409 | asection _bfd_elf_large_com_section |
7eacd66b | 12410 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12411 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12412 | |
cc364be6 AM |
12413 | bfd_boolean |
12414 | _bfd_elf_final_write_processing (bfd *abfd) | |
06f44071 AM |
12415 | { |
12416 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12417 | |
12418 | i_ehdrp = elf_elfheader (abfd); | |
12419 | ||
06f44071 AM |
12420 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12421 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12422 | |
df3a023b AM |
12423 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
12424 | SHF_GNU_MBIND sections or symbols of STT_GNU_IFUNC type or | |
12425 | STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12426 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12427 | { | |
12428 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12429 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12430 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12431 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12432 | { | |
12433 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
12434 | _bfd_error_handler (_("GNU_MBIND section is unsupported")); | |
12435 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) | |
12436 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is unsupported")); | |
12437 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) | |
12438 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is unsupported")); | |
9aea1e31 | 12439 | bfd_set_error (bfd_error_sorry); |
cc364be6 AM |
12440 | return FALSE; |
12441 | } | |
12442 | } | |
12443 | return TRUE; | |
d1036acb | 12444 | } |
fcb93ecf PB |
12445 | |
12446 | ||
12447 | /* Return TRUE for ELF symbol types that represent functions. | |
12448 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12449 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12450 | |
12451 | bfd_boolean | |
12452 | _bfd_elf_is_function_type (unsigned int type) | |
12453 | { | |
d8045f23 NC |
12454 | return (type == STT_FUNC |
12455 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12456 | } |
9f296da3 | 12457 | |
aef36ac1 AM |
12458 | /* If the ELF symbol SYM might be a function in SEC, return the |
12459 | function size and set *CODE_OFF to the function's entry point, | |
12460 | otherwise return zero. */ | |
9f296da3 | 12461 | |
aef36ac1 AM |
12462 | bfd_size_type |
12463 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12464 | bfd_vma *code_off) | |
9f296da3 | 12465 | { |
aef36ac1 AM |
12466 | bfd_size_type size; |
12467 | ||
ff9e0f5b | 12468 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12469 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12470 | || sym->section != sec) | |
12471 | return 0; | |
ff9e0f5b | 12472 | |
ff9e0f5b | 12473 | *code_off = sym->value; |
aef36ac1 AM |
12474 | size = 0; |
12475 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12476 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12477 | if (size == 0) | |
12478 | size = 1; | |
12479 | return size; | |
9f296da3 | 12480 | } |
a8e14f4c NC |
12481 | |
12482 | /* Set to non-zero to enable some debug messages. */ | |
12483 | #define DEBUG_SECONDARY_RELOCS 0 | |
12484 | ||
12485 | /* An internal-to-the-bfd-library only section type | |
12486 | used to indicate a cached secondary reloc section. */ | |
12487 | #define SHT_SECONDARY_RELOC (SHT_LOOS + SHT_RELA) | |
12488 | ||
12489 | /* Create a BFD section to hold a secondary reloc section. */ | |
12490 | ||
12491 | bfd_boolean | |
12492 | _bfd_elf_init_secondary_reloc_section (bfd * abfd, | |
12493 | Elf_Internal_Shdr *hdr, | |
12494 | const char * name, | |
12495 | unsigned int shindex) | |
12496 | { | |
12497 | /* We only support RELA secondary relocs. */ | |
12498 | if (hdr->sh_type != SHT_RELA) | |
12499 | return FALSE; | |
12500 | ||
12501 | #if DEBUG_SECONDARY_RELOCS | |
12502 | fprintf (stderr, "secondary reloc section %s encountered\n", name); | |
12503 | #endif | |
12504 | hdr->sh_type = SHT_SECONDARY_RELOC; | |
12505 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
12506 | } | |
12507 | ||
12508 | /* Read in any secondary relocs associated with SEC. */ | |
12509 | ||
12510 | bfd_boolean | |
12511 | _bfd_elf_slurp_secondary_reloc_section (bfd * abfd, | |
12512 | asection * sec, | |
12513 | asymbol ** symbols) | |
12514 | { | |
12515 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
12516 | asection * relsec; | |
12517 | bfd_boolean result = TRUE; | |
12518 | bfd_vma (*r_sym) (bfd_vma); | |
12519 | ||
12520 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
12521 | if (bfd_arch_bits_per_address (abfd) != 32) | |
12522 | r_sym = elf64_r_sym; | |
12523 | else | |
12524 | #endif | |
12525 | r_sym = elf32_r_sym; | |
12526 | ||
12527 | /* Discover if there are any secondary reloc sections | |
12528 | associated with SEC. */ | |
12529 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
12530 | { | |
12531 | Elf_Internal_Shdr * hdr = & elf_section_data (relsec)->this_hdr; | |
12532 | ||
12533 | if (hdr->sh_type == SHT_SECONDARY_RELOC | |
12534 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx) | |
12535 | { | |
12536 | bfd_byte * native_relocs; | |
12537 | bfd_byte * native_reloc; | |
12538 | arelent * internal_relocs; | |
12539 | arelent * internal_reloc; | |
12540 | unsigned int i; | |
12541 | unsigned int entsize; | |
12542 | unsigned int symcount; | |
12543 | unsigned int reloc_count; | |
12544 | size_t amt; | |
12545 | ||
12546 | if (ebd->elf_info_to_howto == NULL) | |
12547 | return FALSE; | |
12548 | ||
12549 | #if DEBUG_SECONDARY_RELOCS | |
12550 | fprintf (stderr, "read secondary relocs for %s from %s\n", | |
12551 | sec->name, relsec->name); | |
12552 | #endif | |
12553 | entsize = hdr->sh_entsize; | |
12554 | ||
12555 | native_relocs = bfd_malloc (hdr->sh_size); | |
12556 | if (native_relocs == NULL) | |
12557 | { | |
12558 | result = FALSE; | |
12559 | continue; | |
12560 | } | |
12561 | ||
12562 | reloc_count = NUM_SHDR_ENTRIES (hdr); | |
12563 | if (_bfd_mul_overflow (reloc_count, sizeof (arelent), & amt)) | |
12564 | { | |
ecbbbdba | 12565 | free (native_relocs); |
a8e14f4c NC |
12566 | bfd_set_error (bfd_error_file_too_big); |
12567 | result = FALSE; | |
12568 | continue; | |
12569 | } | |
12570 | ||
12571 | internal_relocs = (arelent *) bfd_alloc (abfd, amt); | |
12572 | if (internal_relocs == NULL) | |
12573 | { | |
12574 | free (native_relocs); | |
12575 | result = FALSE; | |
12576 | continue; | |
12577 | } | |
12578 | ||
12579 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
12580 | || (bfd_bread (native_relocs, hdr->sh_size, abfd) | |
12581 | != hdr->sh_size)) | |
12582 | { | |
12583 | free (native_relocs); | |
ecbbbdba NC |
12584 | /* The internal_relocs will be freed when |
12585 | the memory for the bfd is released. */ | |
a8e14f4c NC |
12586 | result = FALSE; |
12587 | continue; | |
12588 | } | |
12589 | ||
12590 | symcount = bfd_get_symcount (abfd); | |
12591 | ||
12592 | for (i = 0, internal_reloc = internal_relocs, | |
12593 | native_reloc = native_relocs; | |
12594 | i < reloc_count; | |
12595 | i++, internal_reloc++, native_reloc += entsize) | |
12596 | { | |
12597 | bfd_boolean res; | |
12598 | Elf_Internal_Rela rela; | |
12599 | ||
12600 | ebd->s->swap_reloca_in (abfd, native_reloc, & rela); | |
12601 | ||
12602 | /* The address of an ELF reloc is section relative for an object | |
12603 | file, and absolute for an executable file or shared library. | |
12604 | The address of a normal BFD reloc is always section relative, | |
12605 | and the address of a dynamic reloc is absolute.. */ | |
12606 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
12607 | internal_reloc->address = rela.r_offset; | |
12608 | else | |
12609 | internal_reloc->address = rela.r_offset - sec->vma; | |
12610 | ||
12611 | if (r_sym (rela.r_info) == STN_UNDEF) | |
12612 | { | |
12613 | /* FIXME: This and the error case below mean that we | |
12614 | have a symbol on relocs that is not elf_symbol_type. */ | |
12615 | internal_reloc->sym_ptr_ptr = | |
12616 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
12617 | } | |
12618 | else if (r_sym (rela.r_info) > symcount) | |
12619 | { | |
12620 | _bfd_error_handler | |
12621 | /* xgettext:c-format */ | |
12622 | (_("%pB(%pA): relocation %d has invalid symbol index %ld"), | |
12623 | abfd, sec, i, (long) r_sym (rela.r_info)); | |
12624 | bfd_set_error (bfd_error_bad_value); | |
12625 | internal_reloc->sym_ptr_ptr = | |
12626 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
12627 | result = FALSE; | |
12628 | } | |
12629 | else | |
12630 | { | |
12631 | asymbol **ps; | |
12632 | ||
12633 | ps = symbols + r_sym (rela.r_info) - 1; | |
12634 | ||
12635 | internal_reloc->sym_ptr_ptr = ps; | |
12636 | /* Make sure that this symbol is not removed by strip. */ | |
12637 | (*ps)->flags |= BSF_KEEP; | |
12638 | } | |
12639 | ||
12640 | internal_reloc->addend = rela.r_addend; | |
12641 | ||
12642 | res = ebd->elf_info_to_howto (abfd, internal_reloc, & rela); | |
12643 | if (! res || internal_reloc->howto == NULL) | |
12644 | { | |
12645 | #if DEBUG_SECONDARY_RELOCS | |
12646 | fprintf (stderr, "there is no howto associated with reloc %lx\n", | |
12647 | rela.r_info); | |
12648 | #endif | |
12649 | result = FALSE; | |
12650 | } | |
12651 | } | |
12652 | ||
12653 | free (native_relocs); | |
12654 | /* Store the internal relocs. */ | |
12655 | elf_section_data (relsec)->sec_info = internal_relocs; | |
12656 | } | |
12657 | } | |
12658 | ||
12659 | return result; | |
12660 | } | |
12661 | ||
12662 | /* Set the ELF section header fields of an output secondary reloc section. */ | |
12663 | ||
12664 | bfd_boolean | |
12665 | _bfd_elf_copy_special_section_fields (const bfd * ibfd ATTRIBUTE_UNUSED, | |
12666 | bfd * obfd ATTRIBUTE_UNUSED, | |
12667 | const Elf_Internal_Shdr * isection, | |
12668 | Elf_Internal_Shdr * osection) | |
12669 | { | |
12670 | asection * isec; | |
12671 | asection * osec; | |
12672 | ||
12673 | if (isection == NULL) | |
12674 | return FALSE; | |
12675 | ||
12676 | if (isection->sh_type != SHT_SECONDARY_RELOC) | |
12677 | return TRUE; | |
12678 | ||
12679 | isec = isection->bfd_section; | |
12680 | if (isec == NULL) | |
12681 | return FALSE; | |
12682 | ||
12683 | osec = osection->bfd_section; | |
12684 | if (osec == NULL) | |
12685 | return FALSE; | |
12686 | ||
12687 | BFD_ASSERT (elf_section_data (osec)->sec_info == NULL); | |
12688 | elf_section_data (osec)->sec_info = elf_section_data (isec)->sec_info; | |
12689 | osection->sh_type = SHT_RELA; | |
12690 | osection->sh_link = elf_onesymtab (obfd); | |
12691 | if (osection->sh_link == 0) | |
12692 | { | |
12693 | /* There is no symbol table - we are hosed... */ | |
12694 | _bfd_error_handler | |
12695 | /* xgettext:c-format */ | |
12696 | (_("%pB(%pA): link section cannot be set because the output file does not have a symbol table"), | |
12697 | obfd, osec); | |
12698 | bfd_set_error (bfd_error_bad_value); | |
12699 | return FALSE; | |
12700 | } | |
12701 | ||
12702 | /* Find the output section that corresponds to the isection's sh_info link. */ | |
327ef784 NC |
12703 | if (isection->sh_info == 0 |
12704 | || isection->sh_info >= elf_numsections (ibfd)) | |
12705 | { | |
12706 | _bfd_error_handler | |
12707 | /* xgettext:c-format */ | |
12708 | (_("%pB(%pA): info section index is invalid"), | |
12709 | obfd, osec); | |
12710 | bfd_set_error (bfd_error_bad_value); | |
12711 | return FALSE; | |
12712 | } | |
12713 | ||
a8e14f4c NC |
12714 | isection = elf_elfsections (ibfd)[isection->sh_info]; |
12715 | ||
327ef784 NC |
12716 | if (isection == NULL |
12717 | || isection->bfd_section == NULL | |
12718 | || isection->bfd_section->output_section == NULL) | |
12719 | { | |
12720 | _bfd_error_handler | |
12721 | /* xgettext:c-format */ | |
12722 | (_("%pB(%pA): info section index cannot be set because the section is not in the output"), | |
12723 | obfd, osec); | |
12724 | bfd_set_error (bfd_error_bad_value); | |
12725 | return FALSE; | |
12726 | } | |
12727 | ||
a8e14f4c NC |
12728 | osection->sh_info = |
12729 | elf_section_data (isection->bfd_section->output_section)->this_idx; | |
12730 | ||
12731 | #if DEBUG_SECONDARY_RELOCS | |
12732 | fprintf (stderr, "update header of %s, sh_link = %u, sh_info = %u\n", | |
12733 | osec->name, osection->sh_link, osection->sh_info); | |
12734 | #endif | |
12735 | ||
12736 | return TRUE; | |
12737 | } | |
12738 | ||
12739 | /* Write out a secondary reloc section. */ | |
12740 | ||
12741 | bfd_boolean | |
12742 | _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec) | |
12743 | { | |
12744 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
12745 | bfd_vma addr_offset; | |
12746 | asection * relsec; | |
12747 | bfd_vma (*r_info) (bfd_vma, bfd_vma); | |
ac4bf06c NC |
12748 | bfd_boolean result = TRUE; |
12749 | ||
12750 | if (sec == NULL) | |
12751 | return FALSE; | |
a8e14f4c NC |
12752 | |
12753 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
12754 | if (bfd_arch_bits_per_address (abfd) != 32) | |
12755 | r_info = elf64_r_info; | |
12756 | else | |
12757 | #endif | |
12758 | r_info = elf32_r_info; | |
12759 | ||
a8e14f4c NC |
12760 | /* The address of an ELF reloc is section relative for an object |
12761 | file, and absolute for an executable file or shared library. | |
12762 | The address of a BFD reloc is always section relative. */ | |
12763 | addr_offset = 0; | |
12764 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
12765 | addr_offset = sec->vma; | |
12766 | ||
12767 | /* Discover if there are any secondary reloc sections | |
12768 | associated with SEC. */ | |
12769 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
12770 | { | |
12771 | const struct bfd_elf_section_data * const esd = elf_section_data (relsec); | |
12772 | Elf_Internal_Shdr * const hdr = (Elf_Internal_Shdr *) & esd->this_hdr; | |
12773 | ||
12774 | if (hdr->sh_type == SHT_RELA | |
12775 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx) | |
12776 | { | |
12777 | asymbol * last_sym; | |
12778 | int last_sym_idx; | |
12779 | unsigned int reloc_count; | |
12780 | unsigned int idx; | |
12781 | arelent * src_irel; | |
12782 | bfd_byte * dst_rela; | |
12783 | ||
ac4bf06c NC |
12784 | if (hdr->contents != NULL) |
12785 | { | |
12786 | _bfd_error_handler | |
12787 | /* xgettext:c-format */ | |
12788 | (_("%pB(%pA): error: secondary reloc section processed twice"), | |
12789 | abfd, relsec); | |
12790 | bfd_set_error (bfd_error_bad_value); | |
12791 | result = FALSE; | |
12792 | continue; | |
12793 | } | |
a8e14f4c NC |
12794 | |
12795 | reloc_count = hdr->sh_size / hdr->sh_entsize; | |
ac4bf06c NC |
12796 | if (reloc_count <= 0) |
12797 | { | |
12798 | _bfd_error_handler | |
12799 | /* xgettext:c-format */ | |
12800 | (_("%pB(%pA): error: secondary reloc section is empty!"), | |
12801 | abfd, relsec); | |
12802 | bfd_set_error (bfd_error_bad_value); | |
12803 | result = FALSE; | |
12804 | continue; | |
12805 | } | |
a8e14f4c NC |
12806 | |
12807 | hdr->contents = bfd_alloc (abfd, hdr->sh_size); | |
12808 | if (hdr->contents == NULL) | |
12809 | continue; | |
12810 | ||
12811 | #if DEBUG_SECONDARY_RELOCS | |
12812 | fprintf (stderr, "write %u secondary relocs for %s from %s\n", | |
12813 | reloc_count, sec->name, relsec->name); | |
12814 | #endif | |
12815 | last_sym = NULL; | |
12816 | last_sym_idx = 0; | |
12817 | dst_rela = hdr->contents; | |
12818 | src_irel = (arelent *) esd->sec_info; | |
ac4bf06c NC |
12819 | if (src_irel == NULL) |
12820 | { | |
12821 | _bfd_error_handler | |
12822 | /* xgettext:c-format */ | |
12823 | (_("%pB(%pA): error: internal relocs missing for secondary reloc section"), | |
12824 | abfd, relsec); | |
12825 | bfd_set_error (bfd_error_bad_value); | |
12826 | result = FALSE; | |
12827 | continue; | |
12828 | } | |
a8e14f4c NC |
12829 | |
12830 | for (idx = 0; idx < reloc_count; idx++, dst_rela += hdr->sh_entsize) | |
12831 | { | |
12832 | Elf_Internal_Rela src_rela; | |
12833 | arelent *ptr; | |
12834 | asymbol *sym; | |
12835 | int n; | |
12836 | ||
12837 | ptr = src_irel + idx; | |
ac4bf06c NC |
12838 | if (ptr == NULL) |
12839 | { | |
12840 | _bfd_error_handler | |
12841 | /* xgettext:c-format */ | |
12842 | (_("%pB(%pA): error: reloc table entry %u is empty"), | |
12843 | abfd, relsec, idx); | |
12844 | bfd_set_error (bfd_error_bad_value); | |
12845 | result = FALSE; | |
12846 | break; | |
12847 | } | |
a8e14f4c | 12848 | |
ac4bf06c NC |
12849 | if (ptr->sym_ptr_ptr == NULL) |
12850 | { | |
12851 | /* FIXME: Is this an error ? */ | |
12852 | n = 0; | |
12853 | } | |
a8e14f4c NC |
12854 | else |
12855 | { | |
ac4bf06c NC |
12856 | sym = *ptr->sym_ptr_ptr; |
12857 | ||
12858 | if (sym == last_sym) | |
12859 | n = last_sym_idx; | |
12860 | else | |
a8e14f4c | 12861 | { |
ac4bf06c NC |
12862 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, & sym); |
12863 | if (n < 0) | |
12864 | { | |
12865 | _bfd_error_handler | |
12866 | /* xgettext:c-format */ | |
12867 | (_("%pB(%pA): error: secondary reloc %u references a missing symbol"), | |
12868 | abfd, relsec, idx); | |
12869 | bfd_set_error (bfd_error_bad_value); | |
12870 | result = FALSE; | |
12871 | n = 0; | |
12872 | } | |
12873 | ||
12874 | last_sym = sym; | |
12875 | last_sym_idx = n; | |
a8e14f4c | 12876 | } |
a8e14f4c | 12877 | |
ac4bf06c NC |
12878 | if (sym->the_bfd != NULL |
12879 | && sym->the_bfd->xvec != abfd->xvec | |
12880 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
12881 | { | |
12882 | _bfd_error_handler | |
12883 | /* xgettext:c-format */ | |
12884 | (_("%pB(%pA): error: secondary reloc %u references a deleted symbol"), | |
12885 | abfd, relsec, idx); | |
12886 | bfd_set_error (bfd_error_bad_value); | |
12887 | result = FALSE; | |
12888 | n = 0; | |
12889 | } | |
a8e14f4c NC |
12890 | } |
12891 | ||
ac4bf06c | 12892 | src_rela.r_offset = ptr->address + addr_offset; |
a8e14f4c NC |
12893 | if (ptr->howto == NULL) |
12894 | { | |
ac4bf06c NC |
12895 | _bfd_error_handler |
12896 | /* xgettext:c-format */ | |
12897 | (_("%pB(%pA): error: secondary reloc %u is of an unknown type"), | |
12898 | abfd, relsec, idx); | |
12899 | bfd_set_error (bfd_error_bad_value); | |
12900 | result = FALSE; | |
12901 | src_rela.r_info = r_info (0, 0); | |
a8e14f4c | 12902 | } |
ac4bf06c NC |
12903 | else |
12904 | src_rela.r_info = r_info (n, ptr->howto->type); | |
a8e14f4c NC |
12905 | src_rela.r_addend = ptr->addend; |
12906 | ebd->s->swap_reloca_out (abfd, &src_rela, dst_rela); | |
12907 | } | |
12908 | } | |
12909 | } | |
12910 | ||
ac4bf06c | 12911 | return result; |
a8e14f4c | 12912 | } |