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); |
dd863624 L |
860 | if (bed->link_order_error_handler) |
861 | bed->link_order_error_handler | |
695344c0 | 862 | /* xgettext:c-format */ |
871b3ab2 | 863 | (_("%pB: warning: sh_link not set for section `%pA'"), |
dd863624 L |
864 | abfd, s); |
865 | } | |
866 | else | |
867 | { | |
91d6fa6a | 868 | asection *linksec = NULL; |
25bbc984 | 869 | |
4fbb74a6 AM |
870 | if (elfsec < elf_numsections (abfd)) |
871 | { | |
872 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 873 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 874 | } |
25bbc984 L |
875 | |
876 | /* PR 1991, 2008: | |
877 | Some strip/objcopy may leave an incorrect value in | |
878 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 879 | if (linksec == NULL) |
25bbc984 | 880 | { |
4eca0228 | 881 | _bfd_error_handler |
695344c0 | 882 | /* xgettext:c-format */ |
871b3ab2 | 883 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 884 | s->owner, elfsec, s); |
25bbc984 L |
885 | result = FALSE; |
886 | } | |
887 | ||
91d6fa6a | 888 | elf_linked_to_section (s) = linksec; |
dd863624 L |
889 | } |
890 | } | |
53720c49 AM |
891 | else if (this_hdr->sh_type == SHT_GROUP |
892 | && elf_next_in_group (s) == NULL) | |
893 | { | |
4eca0228 | 894 | _bfd_error_handler |
695344c0 | 895 | /* xgettext:c-format */ |
871b3ab2 | 896 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
897 | abfd, elf_section_data (s)->this_idx); |
898 | result = FALSE; | |
899 | } | |
dd863624 | 900 | } |
3d7f7666 | 901 | |
dd863624 | 902 | /* Process section groups. */ |
3d7f7666 L |
903 | if (num_group == (unsigned) -1) |
904 | return result; | |
905 | ||
906 | for (i = 0; i < num_group; i++) | |
907 | { | |
908 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
909 | Elf_Internal_Group *idx; |
910 | unsigned int n_elt; | |
3d7f7666 | 911 | |
4b0e8a5f NC |
912 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
913 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
914 | { | |
4eca0228 | 915 | _bfd_error_handler |
695344c0 | 916 | /* xgettext:c-format */ |
871b3ab2 | 917 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
918 | abfd, i); |
919 | result = FALSE; | |
920 | continue; | |
921 | } | |
922 | ||
923 | idx = (Elf_Internal_Group *) shdr->contents; | |
924 | n_elt = shdr->sh_size / 4; | |
1b786873 | 925 | |
3d7f7666 | 926 | while (--n_elt != 0) |
24d3e51b NC |
927 | { |
928 | ++ idx; | |
929 | ||
930 | if (idx->shdr == NULL) | |
931 | continue; | |
932 | else if (idx->shdr->bfd_section) | |
933 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
934 | else if (idx->shdr->sh_type != SHT_RELA |
935 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
936 | { |
937 | /* There are some unknown sections in the group. */ | |
938 | _bfd_error_handler | |
939 | /* xgettext:c-format */ | |
871b3ab2 | 940 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
941 | abfd, |
942 | idx->shdr->sh_type, | |
943 | bfd_elf_string_from_elf_section (abfd, | |
944 | (elf_elfheader (abfd) | |
945 | ->e_shstrndx), | |
946 | idx->shdr->sh_name), | |
947 | shdr->bfd_section); | |
948 | result = FALSE; | |
949 | } | |
950 | } | |
3d7f7666 | 951 | } |
24d3e51b | 952 | |
3d7f7666 L |
953 | return result; |
954 | } | |
955 | ||
72adc230 AM |
956 | bfd_boolean |
957 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
958 | { | |
959 | return elf_next_in_group (sec) != NULL; | |
960 | } | |
961 | ||
cb7f4b29 AM |
962 | const char * |
963 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
964 | { | |
965 | if (elf_sec_group (sec) != NULL) | |
966 | return elf_group_name (sec); | |
967 | return NULL; | |
968 | } | |
969 | ||
f6fe1ccd L |
970 | static char * |
971 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
972 | { | |
973 | unsigned int len = strlen (name); | |
974 | char *new_name = bfd_alloc (abfd, len + 2); | |
975 | if (new_name == NULL) | |
976 | return NULL; | |
977 | new_name[0] = '.'; | |
978 | new_name[1] = 'z'; | |
979 | memcpy (new_name + 2, name + 1, len); | |
980 | return new_name; | |
981 | } | |
982 | ||
983 | static char * | |
984 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
985 | { | |
986 | unsigned int len = strlen (name); | |
987 | char *new_name = bfd_alloc (abfd, len); | |
988 | if (new_name == NULL) | |
989 | return NULL; | |
990 | new_name[0] = '.'; | |
991 | memcpy (new_name + 1, name + 2, len - 1); | |
992 | return new_name; | |
993 | } | |
994 | ||
cc5277b1 ML |
995 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
996 | ||
997 | struct lto_section | |
998 | { | |
999 | int16_t major_version; | |
1000 | int16_t minor_version; | |
1001 | unsigned char slim_object; | |
1002 | ||
1003 | /* Flags is a private field that is not defined publicly. */ | |
1004 | uint16_t flags; | |
1005 | }; | |
1006 | ||
252b5132 RH |
1007 | /* Make a BFD section from an ELF section. We store a pointer to the |
1008 | BFD section in the bfd_section field of the header. */ | |
1009 | ||
b34976b6 | 1010 | bfd_boolean |
217aa764 AM |
1011 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1012 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1013 | const char *name, |
1014 | int shindex) | |
252b5132 RH |
1015 | { |
1016 | asection *newsect; | |
1017 | flagword flags; | |
9c5bfbb7 | 1018 | const struct elf_backend_data *bed; |
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 | ||
fd361982 AM |
1037 | if (!bfd_set_section_vma (newsect, hdr->sh_addr) |
1038 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1039 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign))) | |
b34976b6 | 1040 | return FALSE; |
252b5132 RH |
1041 | |
1042 | flags = SEC_NO_FLAGS; | |
1043 | if (hdr->sh_type != SHT_NOBITS) | |
1044 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1045 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1046 | flags |= SEC_GROUP; |
252b5132 RH |
1047 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1048 | { | |
1049 | flags |= SEC_ALLOC; | |
1050 | if (hdr->sh_type != SHT_NOBITS) | |
1051 | flags |= SEC_LOAD; | |
1052 | } | |
1053 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1054 | flags |= SEC_READONLY; | |
1055 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1056 | flags |= SEC_CODE; | |
1057 | else if ((flags & SEC_LOAD) != 0) | |
1058 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1059 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1060 | { | |
1061 | flags |= SEC_MERGE; | |
1062 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1063 | } |
84865015 NC |
1064 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1065 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1066 | if (hdr->sh_flags & SHF_GROUP) |
1067 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1068 | return FALSE; |
13ae64f3 JJ |
1069 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1070 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1071 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1072 | flags |= SEC_EXCLUDE; | |
252b5132 | 1073 | |
df3a023b AM |
1074 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1075 | { | |
1076 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1077 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1078 | byte. */ | |
1079 | case ELFOSABI_NONE: | |
1080 | case ELFOSABI_GNU: | |
1081 | case ELFOSABI_FREEBSD: | |
1082 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) | |
1083 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1084 | break; | |
1085 | } | |
1086 | ||
3d2b39cf | 1087 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1088 | { |
3d2b39cf L |
1089 | /* The debugging sections appear to be recognized only by name, |
1090 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1091 | if (name [0] == '.') |
1092 | { | |
bb294208 AM |
1093 | if (strncmp (name, ".debug", 6) == 0 |
1094 | || strncmp (name, ".gnu.linkonce.wi.", 17) == 0 | |
1095 | || strncmp (name, ".zdebug", 7) == 0) | |
1096 | flags |= SEC_DEBUGGING | SEC_ELF_OCTETS; | |
1097 | else if (strncmp (name, GNU_BUILD_ATTRS_SECTION_NAME, 21) == 0 | |
1098 | || strncmp (name, ".note.gnu", 9) == 0) | |
1099 | flags |= SEC_ELF_OCTETS; | |
1100 | else if (strncmp (name, ".line", 5) == 0 | |
1101 | || strncmp (name, ".stab", 5) == 0 | |
1102 | || strcmp (name, ".gdb_index") == 0) | |
3d2b39cf L |
1103 | flags |= SEC_DEBUGGING; |
1104 | } | |
1105 | } | |
252b5132 RH |
1106 | |
1107 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1108 | only link a single copy of the section. This is used to support | |
1109 | g++. g++ will emit each template expansion in its own section. | |
1110 | The symbols will be defined as weak, so that multiple definitions | |
1111 | are permitted. The GNU linker extension is to actually discard | |
1112 | all but one of the sections. */ | |
0112cd26 | 1113 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1114 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1115 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1116 | ||
fa152c49 JW |
1117 | bed = get_elf_backend_data (abfd); |
1118 | if (bed->elf_backend_section_flags) | |
1119 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1120 | return FALSE; |
fa152c49 | 1121 | |
fd361982 | 1122 | if (!bfd_set_section_flags (newsect, flags)) |
b34976b6 | 1123 | return FALSE; |
252b5132 | 1124 | |
718175fa JK |
1125 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1126 | separate debug info files which may have the segments offsets corrupted. | |
1127 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1128 | if (hdr->sh_type == SHT_NOTE) | |
1129 | { | |
baea7ef1 | 1130 | bfd_byte *contents; |
718175fa | 1131 | |
baea7ef1 | 1132 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1133 | return FALSE; |
1134 | ||
276da9b3 L |
1135 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1136 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1137 | free (contents); |
1138 | } | |
1139 | ||
252b5132 RH |
1140 | if ((flags & SEC_ALLOC) != 0) |
1141 | { | |
1142 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1143 | unsigned int i, nload; |
1144 | ||
1145 | /* Some ELF linkers produce binaries with all the program header | |
1146 | p_paddr fields zero. If we have such a binary with more than | |
1147 | one PT_LOAD header, then leave the section lma equal to vma | |
1148 | so that we don't create sections with overlapping lma. */ | |
1149 | phdr = elf_tdata (abfd)->phdr; | |
1150 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1151 | if (phdr->p_paddr != 0) | |
1152 | break; | |
1153 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1154 | ++nload; | |
1155 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1156 | return TRUE; | |
252b5132 | 1157 | |
252b5132 RH |
1158 | phdr = elf_tdata (abfd)->phdr; |
1159 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1160 | { | |
86b2281f AM |
1161 | if (((phdr->p_type == PT_LOAD |
1162 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1163 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1164 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1165 | { |
88967714 AM |
1166 | if ((flags & SEC_LOAD) == 0) |
1167 | newsect->lma = (phdr->p_paddr | |
1168 | + hdr->sh_addr - phdr->p_vaddr); | |
1169 | else | |
1170 | /* We used to use the same adjustment for SEC_LOAD | |
1171 | sections, but that doesn't work if the segment | |
1172 | is packed with code from multiple VMAs. | |
1173 | Instead we calculate the section LMA based on | |
1174 | the segment LMA. It is assumed that the | |
1175 | segment will contain sections with contiguous | |
1176 | LMAs, even if the VMAs are not. */ | |
1177 | newsect->lma = (phdr->p_paddr | |
1178 | + hdr->sh_offset - phdr->p_offset); | |
1179 | ||
1180 | /* With contiguous segments, we can't tell from file | |
1181 | offsets whether a section with zero size should | |
1182 | be placed at the end of one segment or the | |
1183 | beginning of the next. Decide based on vaddr. */ | |
1184 | if (hdr->sh_addr >= phdr->p_vaddr | |
1185 | && (hdr->sh_addr + hdr->sh_size | |
1186 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1187 | break; | |
252b5132 RH |
1188 | } |
1189 | } | |
1190 | } | |
1191 | ||
4a114e3e L |
1192 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1193 | .zdebug_*, after the section flags is set. */ | |
1194 | if ((flags & SEC_DEBUGGING) | |
1195 | && ((name[1] == 'd' && name[6] == '_') | |
1196 | || (name[1] == 'z' && name[7] == '_'))) | |
1197 | { | |
1198 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1199 | int compression_header_size; |
dab394de | 1200 | bfd_size_type uncompressed_size; |
4207142d | 1201 | unsigned int uncompressed_align_power; |
151411f8 L |
1202 | bfd_boolean compressed |
1203 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1204 | &compression_header_size, |
4207142d MW |
1205 | &uncompressed_size, |
1206 | &uncompressed_align_power); | |
151411f8 | 1207 | if (compressed) |
4a114e3e L |
1208 | { |
1209 | /* Compressed section. Check if we should decompress. */ | |
1210 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1211 | action = decompress; | |
1212 | } | |
151411f8 L |
1213 | |
1214 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1215 | section. Check if we should compress. */ | |
1216 | if (action == nothing) | |
4a114e3e | 1217 | { |
151411f8 L |
1218 | if (newsect->size != 0 |
1219 | && (abfd->flags & BFD_COMPRESS) | |
1220 | && compression_header_size >= 0 | |
dab394de | 1221 | && uncompressed_size > 0 |
151411f8 L |
1222 | && (!compressed |
1223 | || ((compression_header_size > 0) | |
1224 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1225 | action = compress; |
151411f8 L |
1226 | else |
1227 | return TRUE; | |
4a114e3e L |
1228 | } |
1229 | ||
151411f8 | 1230 | if (action == compress) |
4a114e3e | 1231 | { |
4a114e3e L |
1232 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1233 | { | |
4eca0228 | 1234 | _bfd_error_handler |
695344c0 | 1235 | /* xgettext:c-format */ |
871b3ab2 | 1236 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1237 | abfd, name); |
1238 | return FALSE; | |
1239 | } | |
151411f8 L |
1240 | } |
1241 | else | |
1242 | { | |
4a114e3e L |
1243 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1244 | { | |
4eca0228 | 1245 | _bfd_error_handler |
695344c0 | 1246 | /* xgettext:c-format */ |
871b3ab2 | 1247 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1248 | abfd, name); |
1249 | return FALSE; | |
1250 | } | |
151411f8 L |
1251 | } |
1252 | ||
f6fe1ccd | 1253 | if (abfd->is_linker_input) |
151411f8 | 1254 | { |
f6fe1ccd L |
1255 | if (name[1] == 'z' |
1256 | && (action == decompress | |
1257 | || (action == compress | |
1258 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1259 | { |
f6fe1ccd L |
1260 | /* Convert section name from .zdebug_* to .debug_* so |
1261 | that linker will consider this section as a debug | |
1262 | section. */ | |
1263 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1264 | if (new_name == NULL) |
1265 | return FALSE; | |
fd361982 | 1266 | bfd_rename_section (newsect, new_name); |
151411f8 | 1267 | } |
4a114e3e | 1268 | } |
f6fe1ccd L |
1269 | else |
1270 | /* For objdump, don't rename the section. For objcopy, delay | |
1271 | section rename to elf_fake_sections. */ | |
1272 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1273 | } |
1274 | ||
cc5277b1 ML |
1275 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1276 | section. */ | |
1277 | const char *lto_section_name = ".gnu.lto_.lto."; | |
1278 | if (strncmp (name, lto_section_name, strlen (lto_section_name)) == 0) | |
1279 | { | |
1280 | struct lto_section lsection; | |
1281 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1282 | sizeof (struct lto_section))) | |
1283 | abfd->lto_slim_object = lsection.slim_object; | |
1284 | } | |
1285 | ||
b34976b6 | 1286 | return TRUE; |
252b5132 RH |
1287 | } |
1288 | ||
84865015 NC |
1289 | const char *const bfd_elf_section_type_names[] = |
1290 | { | |
252b5132 RH |
1291 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1292 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1293 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1294 | }; | |
1295 | ||
1049f94e | 1296 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1297 | output, and the reloc is against an external symbol, and nothing |
1298 | has given us any additional addend, the resulting reloc will also | |
1299 | be against the same symbol. In such a case, we don't want to | |
1300 | change anything about the way the reloc is handled, since it will | |
1301 | all be done at final link time. Rather than put special case code | |
1302 | into bfd_perform_relocation, all the reloc types use this howto | |
1303 | function. It just short circuits the reloc if producing | |
1049f94e | 1304 | relocatable output against an external symbol. */ |
252b5132 | 1305 | |
252b5132 | 1306 | bfd_reloc_status_type |
217aa764 AM |
1307 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1308 | arelent *reloc_entry, | |
1309 | asymbol *symbol, | |
1310 | void *data ATTRIBUTE_UNUSED, | |
1311 | asection *input_section, | |
1312 | bfd *output_bfd, | |
1313 | char **error_message ATTRIBUTE_UNUSED) | |
1314 | { | |
1315 | if (output_bfd != NULL | |
252b5132 RH |
1316 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1317 | && (! reloc_entry->howto->partial_inplace | |
1318 | || reloc_entry->addend == 0)) | |
1319 | { | |
1320 | reloc_entry->address += input_section->output_offset; | |
1321 | return bfd_reloc_ok; | |
1322 | } | |
1323 | ||
1324 | return bfd_reloc_continue; | |
1325 | } | |
1326 | \f | |
84865015 NC |
1327 | /* Returns TRUE if section A matches section B. |
1328 | Names, addresses and links may be different, but everything else | |
1329 | should be the same. */ | |
1330 | ||
1331 | static bfd_boolean | |
5522f910 NC |
1332 | section_match (const Elf_Internal_Shdr * a, |
1333 | const Elf_Internal_Shdr * b) | |
84865015 | 1334 | { |
ac85e67c AM |
1335 | if (a->sh_type != b->sh_type |
1336 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1337 | || a->sh_addralign != b->sh_addralign | |
1338 | || a->sh_entsize != b->sh_entsize) | |
1339 | return FALSE; | |
1340 | if (a->sh_type == SHT_SYMTAB | |
1341 | || a->sh_type == SHT_STRTAB) | |
1342 | return TRUE; | |
1343 | return a->sh_size == b->sh_size; | |
84865015 NC |
1344 | } |
1345 | ||
1346 | /* Find a section in OBFD that has the same characteristics | |
1347 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1348 | none can be found. Check's section HINT first, as this is likely | |
1349 | to be the correct section. */ | |
1350 | ||
1351 | static unsigned int | |
5cc4ca83 ST |
1352 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1353 | const unsigned int hint) | |
84865015 NC |
1354 | { |
1355 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1356 | unsigned int i; | |
1357 | ||
a55c9876 NC |
1358 | BFD_ASSERT (iheader != NULL); |
1359 | ||
1360 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1361 | if (hint < elf_numsections (obfd) |
1362 | && oheaders[hint] != NULL | |
a55c9876 | 1363 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1364 | return hint; |
1365 | ||
1366 | for (i = 1; i < elf_numsections (obfd); i++) | |
1367 | { | |
1368 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1369 | ||
a55c9876 NC |
1370 | if (oheader == NULL) |
1371 | continue; | |
84865015 NC |
1372 | if (section_match (oheader, iheader)) |
1373 | /* FIXME: Do we care if there is a potential for | |
1374 | multiple matches ? */ | |
1375 | return i; | |
1376 | } | |
1377 | ||
1378 | return SHN_UNDEF; | |
1379 | } | |
1380 | ||
5522f910 NC |
1381 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1382 | Processor specific section, based upon a matching input section. | |
1383 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1384 | |
5522f910 NC |
1385 | static bfd_boolean |
1386 | copy_special_section_fields (const bfd *ibfd, | |
1387 | bfd *obfd, | |
1388 | const Elf_Internal_Shdr *iheader, | |
1389 | Elf_Internal_Shdr *oheader, | |
1390 | const unsigned int secnum) | |
1391 | { | |
1392 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1393 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1394 | bfd_boolean changed = FALSE; | |
1395 | unsigned int sh_link; | |
1396 | ||
1397 | if (oheader->sh_type == SHT_NOBITS) | |
1398 | { | |
1399 | /* This is a feature for objcopy --only-keep-debug: | |
1400 | When a section's type is changed to NOBITS, we preserve | |
1401 | the sh_link and sh_info fields so that they can be | |
1402 | matched up with the original. | |
1403 | ||
1404 | Note: Strictly speaking these assignments are wrong. | |
1405 | The sh_link and sh_info fields should point to the | |
1406 | relevent sections in the output BFD, which may not be in | |
1407 | the same location as they were in the input BFD. But | |
1408 | the whole point of this action is to preserve the | |
1409 | original values of the sh_link and sh_info fields, so | |
1410 | that they can be matched up with the section headers in | |
1411 | the original file. So strictly speaking we may be | |
1412 | creating an invalid ELF file, but it is only for a file | |
1413 | that just contains debug info and only for sections | |
1414 | without any contents. */ | |
1415 | if (oheader->sh_link == 0) | |
1416 | oheader->sh_link = iheader->sh_link; | |
1417 | if (oheader->sh_info == 0) | |
1418 | oheader->sh_info = iheader->sh_info; | |
1419 | return TRUE; | |
1420 | } | |
1421 | ||
1422 | /* Allow the target a chance to decide how these fields should be set. */ | |
1423 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1424 | && bed->elf_backend_copy_special_section_fields | |
1425 | (ibfd, obfd, iheader, oheader)) | |
1426 | return TRUE; | |
1427 | ||
1428 | /* We have an iheader which might match oheader, and which has non-zero | |
1429 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1430 | the section in the output bfd which corresponds to the linked section | |
1431 | in the input bfd. */ | |
1432 | if (iheader->sh_link != SHN_UNDEF) | |
1433 | { | |
4f3ca05b NC |
1434 | /* See PR 20931 for a reproducer. */ |
1435 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1436 | { | |
76cfced5 | 1437 | _bfd_error_handler |
4f3ca05b | 1438 | /* xgettext:c-format */ |
9793eb77 | 1439 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1440 | ibfd, iheader->sh_link, secnum); |
1441 | return FALSE; | |
1442 | } | |
1443 | ||
5522f910 NC |
1444 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1445 | if (sh_link != SHN_UNDEF) | |
1446 | { | |
1447 | oheader->sh_link = sh_link; | |
1448 | changed = TRUE; | |
1449 | } | |
1450 | else | |
1451 | /* FIXME: Should we install iheader->sh_link | |
1452 | if we could not find a match ? */ | |
76cfced5 | 1453 | _bfd_error_handler |
695344c0 | 1454 | /* xgettext:c-format */ |
9793eb77 | 1455 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1456 | } |
1457 | ||
1458 | if (iheader->sh_info) | |
1459 | { | |
1460 | /* The sh_info field can hold arbitrary information, but if the | |
1461 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1462 | section index. */ | |
1463 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1464 | { | |
1465 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1466 | iheader->sh_info); | |
1467 | if (sh_link != SHN_UNDEF) | |
1468 | oheader->sh_flags |= SHF_INFO_LINK; | |
1469 | } | |
1470 | else | |
1471 | /* No idea what it means - just copy it. */ | |
1472 | sh_link = iheader->sh_info; | |
1473 | ||
1474 | if (sh_link != SHN_UNDEF) | |
1475 | { | |
1476 | oheader->sh_info = sh_link; | |
1477 | changed = TRUE; | |
1478 | } | |
1479 | else | |
76cfced5 | 1480 | _bfd_error_handler |
695344c0 | 1481 | /* xgettext:c-format */ |
9793eb77 | 1482 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1483 | } |
1484 | ||
1485 | return changed; | |
1486 | } | |
07d6d2b8 | 1487 | |
0ac4564e L |
1488 | /* Copy the program header and other data from one object module to |
1489 | another. */ | |
252b5132 | 1490 | |
b34976b6 | 1491 | bfd_boolean |
217aa764 | 1492 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1493 | { |
5522f910 NC |
1494 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1495 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1496 | const struct elf_backend_data *bed; | |
84865015 NC |
1497 | unsigned int i; |
1498 | ||
2d502050 | 1499 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1500 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1501 | return TRUE; |
2d502050 | 1502 | |
57b828ef L |
1503 | if (!elf_flags_init (obfd)) |
1504 | { | |
1505 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1506 | elf_flags_init (obfd) = TRUE; | |
1507 | } | |
2d502050 | 1508 | |
0ac4564e | 1509 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1510 | |
1511 | /* Also copy the EI_OSABI field. */ | |
1512 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1513 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1514 | |
5522f910 NC |
1515 | /* If set, copy the EI_ABIVERSION field. */ |
1516 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1517 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1518 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1519 | |
104d59d1 JM |
1520 | /* Copy object attributes. */ |
1521 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1522 | |
84865015 NC |
1523 | if (iheaders == NULL || oheaders == NULL) |
1524 | return TRUE; | |
63b9bbb7 | 1525 | |
5522f910 NC |
1526 | bed = get_elf_backend_data (obfd); |
1527 | ||
1528 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1529 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1530 | { |
84865015 NC |
1531 | unsigned int j; |
1532 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1533 | |
5522f910 NC |
1534 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1535 | because of a special case need for generating separate debug info | |
1536 | files. See below for more details. */ | |
84865015 NC |
1537 | if (oheader == NULL |
1538 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1539 | && oheader->sh_type < SHT_LOOS)) |
1540 | continue; | |
1541 | ||
1542 | /* Ignore empty sections, and sections whose | |
1543 | fields have already been initialised. */ | |
1544 | if (oheader->sh_size == 0 | |
84865015 NC |
1545 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1546 | continue; | |
63b9bbb7 | 1547 | |
84865015 | 1548 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1549 | First we try for a direct mapping between the input and output sections. */ |
1550 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1551 | { | |
1552 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1553 | ||
1554 | if (iheader == NULL) | |
1555 | continue; | |
1556 | ||
1557 | if (oheader->bfd_section != NULL | |
1558 | && iheader->bfd_section != NULL | |
1559 | && iheader->bfd_section->output_section != NULL | |
1560 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1561 | { | |
1562 | /* We have found a connection from the input section to the | |
1563 | output section. Attempt to copy the header fields. If | |
1564 | this fails then do not try any further sections - there | |
1565 | should only be a one-to-one mapping between input and output. */ | |
1566 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1567 | j = elf_numsections (ibfd); | |
1568 | break; | |
1569 | } | |
1570 | } | |
1571 | ||
1572 | if (j < elf_numsections (ibfd)) | |
1573 | continue; | |
1574 | ||
1575 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1576 | Unfortunately we cannot compare names as the output string table |
1577 | is empty, so instead we check size, address and type. */ | |
1578 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1579 | { | |
5522f910 | 1580 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1581 | |
5522f910 NC |
1582 | if (iheader == NULL) |
1583 | continue; | |
1584 | ||
1585 | /* Try matching fields in the input section's header. | |
1586 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1587 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1588 | input type. */ | |
1589 | if ((oheader->sh_type == SHT_NOBITS | |
1590 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1591 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1592 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1593 | && iheader->sh_addralign == oheader->sh_addralign |
1594 | && iheader->sh_entsize == oheader->sh_entsize | |
1595 | && iheader->sh_size == oheader->sh_size | |
1596 | && iheader->sh_addr == oheader->sh_addr | |
1597 | && (iheader->sh_info != oheader->sh_info | |
1598 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1599 | { |
5522f910 NC |
1600 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1601 | break; | |
63b9bbb7 NC |
1602 | } |
1603 | } | |
5522f910 NC |
1604 | |
1605 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1606 | { | |
1607 | /* Final attempt. Call the backend copy function | |
1608 | with a NULL input section. */ | |
1609 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1610 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1611 | } | |
63b9bbb7 NC |
1612 | } |
1613 | ||
b34976b6 | 1614 | return TRUE; |
2d502050 L |
1615 | } |
1616 | ||
cedc298e L |
1617 | static const char * |
1618 | get_segment_type (unsigned int p_type) | |
1619 | { | |
1620 | const char *pt; | |
1621 | switch (p_type) | |
1622 | { | |
1623 | case PT_NULL: pt = "NULL"; break; | |
1624 | case PT_LOAD: pt = "LOAD"; break; | |
1625 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1626 | case PT_INTERP: pt = "INTERP"; break; | |
1627 | case PT_NOTE: pt = "NOTE"; break; | |
1628 | case PT_SHLIB: pt = "SHLIB"; break; | |
1629 | case PT_PHDR: pt = "PHDR"; break; | |
1630 | case PT_TLS: pt = "TLS"; break; | |
1631 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1632 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1633 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1634 | default: pt = NULL; break; | |
1635 | } | |
1636 | return pt; | |
1637 | } | |
1638 | ||
f0b79d91 L |
1639 | /* Print out the program headers. */ |
1640 | ||
b34976b6 | 1641 | bfd_boolean |
217aa764 | 1642 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1643 | { |
a50b1753 | 1644 | FILE *f = (FILE *) farg; |
252b5132 RH |
1645 | Elf_Internal_Phdr *p; |
1646 | asection *s; | |
1647 | bfd_byte *dynbuf = NULL; | |
1648 | ||
1649 | p = elf_tdata (abfd)->phdr; | |
1650 | if (p != NULL) | |
1651 | { | |
1652 | unsigned int i, c; | |
1653 | ||
1654 | fprintf (f, _("\nProgram Header:\n")); | |
1655 | c = elf_elfheader (abfd)->e_phnum; | |
1656 | for (i = 0; i < c; i++, p++) | |
1657 | { | |
cedc298e | 1658 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1659 | char buf[20]; |
1660 | ||
cedc298e | 1661 | if (pt == NULL) |
252b5132 | 1662 | { |
cedc298e L |
1663 | sprintf (buf, "0x%lx", p->p_type); |
1664 | pt = buf; | |
252b5132 | 1665 | } |
dc810e39 | 1666 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1667 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1668 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1669 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1670 | fprintf (f, " paddr 0x"); |
60b89a18 | 1671 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1672 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1673 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1674 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1675 | fprintf (f, " memsz 0x"); |
60b89a18 | 1676 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1677 | fprintf (f, " flags %c%c%c", |
1678 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1679 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1680 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1681 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1682 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1683 | fprintf (f, "\n"); |
1684 | } | |
1685 | } | |
1686 | ||
1687 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1688 | if (s != NULL) | |
1689 | { | |
cb33740c | 1690 | unsigned int elfsec; |
dc810e39 | 1691 | unsigned long shlink; |
252b5132 RH |
1692 | bfd_byte *extdyn, *extdynend; |
1693 | size_t extdynsize; | |
217aa764 | 1694 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1695 | |
1696 | fprintf (f, _("\nDynamic Section:\n")); | |
1697 | ||
eea6121a | 1698 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1699 | goto error_return; |
1700 | ||
1701 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1702 | if (elfsec == SHN_BAD) |
252b5132 | 1703 | goto error_return; |
dc810e39 | 1704 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1705 | |
1706 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1707 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1708 | ||
1709 | extdyn = dynbuf; | |
06614111 NC |
1710 | /* PR 17512: file: 6f427532. */ |
1711 | if (s->size < extdynsize) | |
1712 | goto error_return; | |
eea6121a | 1713 | extdynend = extdyn + s->size; |
1036838a | 1714 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1715 | Fix range check. */ |
1036838a | 1716 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1717 | { |
1718 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1719 | const char *name = ""; |
252b5132 | 1720 | char ab[20]; |
b34976b6 | 1721 | bfd_boolean stringp; |
ad9563d6 | 1722 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1723 | |
217aa764 | 1724 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1725 | |
1726 | if (dyn.d_tag == DT_NULL) | |
1727 | break; | |
1728 | ||
b34976b6 | 1729 | stringp = FALSE; |
252b5132 RH |
1730 | switch (dyn.d_tag) |
1731 | { | |
1732 | default: | |
ad9563d6 CM |
1733 | if (bed->elf_backend_get_target_dtag) |
1734 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1735 | ||
1736 | if (!strcmp (name, "")) | |
1737 | { | |
cd9af601 | 1738 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1739 | name = ab; |
1740 | } | |
252b5132 RH |
1741 | break; |
1742 | ||
b34976b6 | 1743 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1744 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1745 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1746 | case DT_HASH: name = "HASH"; break; | |
1747 | case DT_STRTAB: name = "STRTAB"; break; | |
1748 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1749 | case DT_RELA: name = "RELA"; break; | |
1750 | case DT_RELASZ: name = "RELASZ"; break; | |
1751 | case DT_RELAENT: name = "RELAENT"; break; | |
1752 | case DT_STRSZ: name = "STRSZ"; break; | |
1753 | case DT_SYMENT: name = "SYMENT"; break; | |
1754 | case DT_INIT: name = "INIT"; break; | |
1755 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1756 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1757 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1758 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1759 | case DT_REL: name = "REL"; break; | |
1760 | case DT_RELSZ: name = "RELSZ"; break; | |
1761 | case DT_RELENT: name = "RELENT"; break; | |
1762 | case DT_PLTREL: name = "PLTREL"; break; | |
1763 | case DT_DEBUG: name = "DEBUG"; break; | |
1764 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1765 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1766 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1767 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1768 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1769 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1770 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1771 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1772 | case DT_FLAGS: name = "FLAGS"; break; |
1773 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1774 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1775 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1776 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1777 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1778 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1779 | case DT_FEATURE: name = "FEATURE"; break; | |
1780 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1781 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1782 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1783 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1784 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1785 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1786 | case DT_PLTPAD: name = "PLTPAD"; break; |
1787 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1788 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1789 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1790 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1791 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1792 | case DT_VERSYM: name = "VERSYM"; break; |
1793 | case DT_VERDEF: name = "VERDEF"; break; | |
1794 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1795 | case DT_VERNEED: name = "VERNEED"; break; | |
1796 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1797 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1798 | case DT_USED: name = "USED"; break; |
b34976b6 | 1799 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1800 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1801 | } |
1802 | ||
ad9563d6 | 1803 | fprintf (f, " %-20s ", name); |
252b5132 | 1804 | if (! stringp) |
a1f3c56e AN |
1805 | { |
1806 | fprintf (f, "0x"); | |
1807 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1808 | } | |
252b5132 RH |
1809 | else |
1810 | { | |
1811 | const char *string; | |
dc810e39 | 1812 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1813 | |
dc810e39 | 1814 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1815 | if (string == NULL) |
1816 | goto error_return; | |
1817 | fprintf (f, "%s", string); | |
1818 | } | |
1819 | fprintf (f, "\n"); | |
1820 | } | |
1821 | ||
1822 | free (dynbuf); | |
1823 | dynbuf = NULL; | |
1824 | } | |
1825 | ||
1826 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1827 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1828 | { | |
fc0e6df6 | 1829 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1830 | return FALSE; |
252b5132 RH |
1831 | } |
1832 | ||
1833 | if (elf_dynverdef (abfd) != 0) | |
1834 | { | |
1835 | Elf_Internal_Verdef *t; | |
1836 | ||
1837 | fprintf (f, _("\nVersion definitions:\n")); | |
1838 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1839 | { | |
1840 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1841 | t->vd_flags, t->vd_hash, |
1842 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1843 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1844 | { |
1845 | Elf_Internal_Verdaux *a; | |
1846 | ||
1847 | fprintf (f, "\t"); | |
1848 | for (a = t->vd_auxptr->vda_nextptr; | |
1849 | a != NULL; | |
1850 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1851 | fprintf (f, "%s ", |
1852 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1853 | fprintf (f, "\n"); |
1854 | } | |
1855 | } | |
1856 | } | |
1857 | ||
1858 | if (elf_dynverref (abfd) != 0) | |
1859 | { | |
1860 | Elf_Internal_Verneed *t; | |
1861 | ||
1862 | fprintf (f, _("\nVersion References:\n")); | |
1863 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1864 | { | |
1865 | Elf_Internal_Vernaux *a; | |
1866 | ||
d0fb9a8d JJ |
1867 | fprintf (f, _(" required from %s:\n"), |
1868 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1869 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1870 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1871 | a->vna_flags, a->vna_other, |
1872 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1873 | } |
1874 | } | |
1875 | ||
b34976b6 | 1876 | return TRUE; |
252b5132 RH |
1877 | |
1878 | error_return: | |
1879 | if (dynbuf != NULL) | |
1880 | free (dynbuf); | |
b34976b6 | 1881 | return FALSE; |
252b5132 RH |
1882 | } |
1883 | ||
bb4d2ac2 L |
1884 | /* Get version string. */ |
1885 | ||
1886 | const char * | |
60bb06bc L |
1887 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1888 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1889 | { |
1890 | const char *version_string = NULL; | |
1891 | if (elf_dynversym (abfd) != 0 | |
1892 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1893 | { | |
1894 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1895 | ||
1896 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1897 | vernum &= VERSYM_VERSION; | |
1898 | ||
1899 | if (vernum == 0) | |
1900 | version_string = ""; | |
1f6f5dba L |
1901 | else if (vernum == 1 |
1902 | && (vernum > elf_tdata (abfd)->cverdefs | |
1903 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1904 | == VER_FLG_BASE))) | |
bb4d2ac2 L |
1905 | version_string = "Base"; |
1906 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1907 | version_string = | |
1908 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1909 | else | |
1910 | { | |
1911 | Elf_Internal_Verneed *t; | |
1912 | ||
7a815dd5 | 1913 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1914 | for (t = elf_tdata (abfd)->verref; |
1915 | t != NULL; | |
1916 | t = t->vn_nextref) | |
1917 | { | |
1918 | Elf_Internal_Vernaux *a; | |
1919 | ||
1920 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1921 | { | |
1922 | if (a->vna_other == vernum) | |
1923 | { | |
1924 | version_string = a->vna_nodename; | |
1925 | break; | |
1926 | } | |
1927 | } | |
1928 | } | |
1929 | } | |
1930 | } | |
1931 | return version_string; | |
1932 | } | |
1933 | ||
252b5132 RH |
1934 | /* Display ELF-specific fields of a symbol. */ |
1935 | ||
1936 | void | |
217aa764 AM |
1937 | bfd_elf_print_symbol (bfd *abfd, |
1938 | void *filep, | |
1939 | asymbol *symbol, | |
1940 | bfd_print_symbol_type how) | |
252b5132 | 1941 | { |
a50b1753 | 1942 | FILE *file = (FILE *) filep; |
252b5132 RH |
1943 | switch (how) |
1944 | { | |
1945 | case bfd_print_symbol_name: | |
1946 | fprintf (file, "%s", symbol->name); | |
1947 | break; | |
1948 | case bfd_print_symbol_more: | |
1949 | fprintf (file, "elf "); | |
60b89a18 | 1950 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1951 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1952 | break; |
1953 | case bfd_print_symbol_all: | |
1954 | { | |
4e8a9624 AM |
1955 | const char *section_name; |
1956 | const char *name = NULL; | |
9c5bfbb7 | 1957 | const struct elf_backend_data *bed; |
7a13edea | 1958 | unsigned char st_other; |
dbb410c3 | 1959 | bfd_vma val; |
bb4d2ac2 L |
1960 | const char *version_string; |
1961 | bfd_boolean hidden; | |
c044fabd | 1962 | |
252b5132 | 1963 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1964 | |
1965 | bed = get_elf_backend_data (abfd); | |
1966 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1967 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1968 | |
1969 | if (name == NULL) | |
1970 | { | |
7ee38065 | 1971 | name = symbol->name; |
217aa764 | 1972 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1973 | } |
1974 | ||
252b5132 RH |
1975 | fprintf (file, " %s\t", section_name); |
1976 | /* Print the "other" value for a symbol. For common symbols, | |
1977 | we've already printed the size; now print the alignment. | |
1978 | For other symbols, we have no specified alignment, and | |
1979 | we've printed the address; now print the size. */ | |
dcf6c779 | 1980 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1981 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1982 | else | |
1983 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1984 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1985 | |
1986 | /* If we have version information, print it. */ | |
60bb06bc L |
1987 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
1988 | symbol, | |
1989 | &hidden); | |
bb4d2ac2 | 1990 | if (version_string) |
252b5132 | 1991 | { |
bb4d2ac2 | 1992 | if (!hidden) |
252b5132 RH |
1993 | fprintf (file, " %-11s", version_string); |
1994 | else | |
1995 | { | |
1996 | int i; | |
1997 | ||
1998 | fprintf (file, " (%s)", version_string); | |
1999 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2000 | putc (' ', file); | |
2001 | } | |
2002 | } | |
2003 | ||
2004 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2005 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2006 | |
7a13edea NC |
2007 | switch (st_other) |
2008 | { | |
2009 | case 0: break; | |
2010 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2011 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2012 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2013 | default: | |
2014 | /* Some other non-defined flags are also present, so print | |
2015 | everything hex. */ | |
2016 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2017 | } | |
252b5132 | 2018 | |
587ff49e | 2019 | fprintf (file, " %s", name); |
252b5132 RH |
2020 | } |
2021 | break; | |
2022 | } | |
2023 | } | |
252b5132 RH |
2024 | \f |
2025 | /* ELF .o/exec file reading */ | |
2026 | ||
c044fabd | 2027 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2028 | |
b34976b6 | 2029 | bfd_boolean |
217aa764 | 2030 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2031 | { |
4fbb74a6 AM |
2032 | Elf_Internal_Shdr *hdr; |
2033 | Elf_Internal_Ehdr *ehdr; | |
2034 | const struct elf_backend_data *bed; | |
90937f86 | 2035 | const char *name; |
bf67003b NC |
2036 | bfd_boolean ret = TRUE; |
2037 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2038 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2039 | static unsigned int nesting = 0; |
252b5132 | 2040 | |
4fbb74a6 AM |
2041 | if (shindex >= elf_numsections (abfd)) |
2042 | return FALSE; | |
2043 | ||
bf67003b NC |
2044 | if (++ nesting > 3) |
2045 | { | |
2046 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2047 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2048 | loop. Detect this here, by refusing to load a section that we are |
2049 | already in the process of loading. We only trigger this test if | |
2050 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2051 | can expect to recurse at least once. |
2052 | ||
2053 | FIXME: It would be better if this array was attached to the bfd, | |
2054 | rather than being held in a static pointer. */ | |
2055 | ||
2056 | if (sections_being_created_abfd != abfd) | |
2057 | sections_being_created = NULL; | |
bf67003b NC |
2058 | if (sections_being_created == NULL) |
2059 | { | |
446f7ed5 AM |
2060 | size_t amt = elf_numsections (abfd) * sizeof (bfd_boolean); |
2061 | sections_being_created = (bfd_boolean *) bfd_zalloc (abfd, amt); | |
96d3b80f AM |
2062 | if (sections_being_created == NULL) |
2063 | return FALSE; | |
5a4b0ccc | 2064 | sections_being_created_abfd = abfd; |
bf67003b NC |
2065 | } |
2066 | if (sections_being_created [shindex]) | |
2067 | { | |
4eca0228 | 2068 | _bfd_error_handler |
871b3ab2 | 2069 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2070 | return FALSE; |
2071 | } | |
2072 | sections_being_created [shindex] = TRUE; | |
2073 | } | |
2074 | ||
4fbb74a6 AM |
2075 | hdr = elf_elfsections (abfd)[shindex]; |
2076 | ehdr = elf_elfheader (abfd); | |
2077 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2078 | hdr->sh_name); |
933d961a | 2079 | if (name == NULL) |
bf67003b | 2080 | goto fail; |
252b5132 | 2081 | |
4fbb74a6 | 2082 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2083 | switch (hdr->sh_type) |
2084 | { | |
2085 | case SHT_NULL: | |
2086 | /* Inactive section. Throw it away. */ | |
bf67003b | 2087 | goto success; |
252b5132 | 2088 | |
bf67003b NC |
2089 | case SHT_PROGBITS: /* Normal section with contents. */ |
2090 | case SHT_NOBITS: /* .bss section. */ | |
2091 | case SHT_HASH: /* .hash section. */ | |
2092 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2093 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2094 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2095 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2096 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2097 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2098 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2099 | goto success; | |
252b5132 | 2100 | |
797fc050 | 2101 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2102 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2103 | goto fail; |
2104 | ||
cfcac11d NC |
2105 | if (hdr->sh_link > elf_numsections (abfd)) |
2106 | { | |
caa83f8b | 2107 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2108 | field set to SHN_BEFORE or SHN_AFTER. */ |
2109 | switch (bfd_get_arch (abfd)) | |
2110 | { | |
caa83f8b | 2111 | case bfd_arch_i386: |
cfcac11d NC |
2112 | case bfd_arch_sparc: |
2113 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2114 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2115 | break; | |
2116 | /* Otherwise fall through. */ | |
2117 | default: | |
bf67003b | 2118 | goto fail; |
cfcac11d NC |
2119 | } |
2120 | } | |
2121 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2122 | goto fail; |
cfcac11d | 2123 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2124 | { |
2125 | Elf_Internal_Shdr *dynsymhdr; | |
2126 | ||
2127 | /* The shared libraries distributed with hpux11 have a bogus | |
2128 | sh_link field for the ".dynamic" section. Find the | |
2129 | string table for the ".dynsym" section instead. */ | |
2130 | if (elf_dynsymtab (abfd) != 0) | |
2131 | { | |
2132 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2133 | hdr->sh_link = dynsymhdr->sh_link; | |
2134 | } | |
2135 | else | |
2136 | { | |
2137 | unsigned int i, num_sec; | |
2138 | ||
2139 | num_sec = elf_numsections (abfd); | |
2140 | for (i = 1; i < num_sec; i++) | |
2141 | { | |
2142 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2143 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2144 | { | |
2145 | hdr->sh_link = dynsymhdr->sh_link; | |
2146 | break; | |
2147 | } | |
2148 | } | |
2149 | } | |
2150 | } | |
bf67003b | 2151 | goto success; |
797fc050 | 2152 | |
bf67003b | 2153 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2154 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2155 | goto success; |
252b5132 | 2156 | |
a50b2160 | 2157 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2158 | goto fail; |
2159 | ||
3337c1e5 | 2160 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2161 | { |
2162 | if (hdr->sh_size != 0) | |
bf67003b | 2163 | goto fail; |
eee3b786 AM |
2164 | /* Some assemblers erroneously set sh_info to one with a |
2165 | zero sh_size. ld sees this as a global symbol count | |
2166 | of (unsigned) -1. Fix it here. */ | |
2167 | hdr->sh_info = 0; | |
bf67003b | 2168 | goto success; |
eee3b786 | 2169 | } |
bf67003b | 2170 | |
16ad13ec NC |
2171 | /* PR 18854: A binary might contain more than one symbol table. |
2172 | Unusual, but possible. Warn, but continue. */ | |
2173 | if (elf_onesymtab (abfd) != 0) | |
2174 | { | |
4eca0228 | 2175 | _bfd_error_handler |
695344c0 | 2176 | /* xgettext:c-format */ |
871b3ab2 | 2177 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2178 | " - ignoring the table in section %u"), |
16ad13ec NC |
2179 | abfd, shindex); |
2180 | goto success; | |
2181 | } | |
252b5132 | 2182 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2183 | elf_symtab_hdr (abfd) = *hdr; |
2184 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2185 | abfd->flags |= HAS_SYMS; |
2186 | ||
2187 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2188 | SHF_ALLOC is set, and this is a shared object, then we also |
2189 | treat this section as a BFD section. We can not base the | |
2190 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2191 | set in a relocatable object file, which would confuse the | |
2192 | linker. */ | |
252b5132 RH |
2193 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2194 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2195 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2196 | shindex)) | |
bf67003b | 2197 | goto fail; |
252b5132 | 2198 | |
1b3a8575 AM |
2199 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2200 | can't read symbols without that section loaded as well. It | |
2201 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2202 | { |
2203 | elf_section_list * entry; | |
2204 | unsigned int i, num_sec; | |
1b3a8575 | 2205 | |
6a40cf0c NC |
2206 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2207 | if (entry->hdr.sh_link == shindex) | |
2208 | goto success; | |
2209 | ||
2210 | num_sec = elf_numsections (abfd); | |
2211 | for (i = shindex + 1; i < num_sec; i++) | |
2212 | { | |
2213 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2214 | ||
2215 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2216 | && hdr2->sh_link == shindex) | |
2217 | break; | |
2218 | } | |
2219 | ||
2220 | if (i == num_sec) | |
2221 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2222 | { |
2223 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2224 | |
1b3a8575 AM |
2225 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2226 | && hdr2->sh_link == shindex) | |
2227 | break; | |
2228 | } | |
6a40cf0c NC |
2229 | |
2230 | if (i != shindex) | |
2231 | ret = bfd_section_from_shdr (abfd, i); | |
2232 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2233 | goto success; | |
2234 | } | |
252b5132 | 2235 | |
bf67003b | 2236 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2237 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2238 | goto success; |
252b5132 | 2239 | |
a50b2160 | 2240 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2241 | goto fail; |
2242 | ||
eee3b786 AM |
2243 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2244 | { | |
2245 | if (hdr->sh_size != 0) | |
bf67003b NC |
2246 | goto fail; |
2247 | ||
eee3b786 AM |
2248 | /* Some linkers erroneously set sh_info to one with a |
2249 | zero sh_size. ld sees this as a global symbol count | |
2250 | of (unsigned) -1. Fix it here. */ | |
2251 | hdr->sh_info = 0; | |
bf67003b | 2252 | goto success; |
eee3b786 | 2253 | } |
bf67003b | 2254 | |
16ad13ec NC |
2255 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2256 | Unusual, but possible. Warn, but continue. */ | |
2257 | if (elf_dynsymtab (abfd) != 0) | |
2258 | { | |
4eca0228 | 2259 | _bfd_error_handler |
695344c0 | 2260 | /* xgettext:c-format */ |
871b3ab2 | 2261 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2262 | " - ignoring the table in section %u"), |
16ad13ec NC |
2263 | abfd, shindex); |
2264 | goto success; | |
2265 | } | |
252b5132 RH |
2266 | elf_dynsymtab (abfd) = shindex; |
2267 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2268 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2269 | abfd->flags |= HAS_SYMS; | |
2270 | ||
2271 | /* Besides being a symbol table, we also treat this as a regular | |
2272 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2273 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2274 | goto success; | |
252b5132 | 2275 | |
bf67003b | 2276 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2277 | { |
2278 | elf_section_list * entry; | |
9ad5cbcf | 2279 | |
6a40cf0c NC |
2280 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2281 | if (entry->ndx == shindex) | |
2282 | goto success; | |
07d6d2b8 | 2283 | |
7a6e0d89 | 2284 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2285 | if (entry == NULL) |
2286 | goto fail; | |
2287 | entry->ndx = shindex; | |
2288 | entry->hdr = * hdr; | |
2289 | entry->next = elf_symtab_shndx_list (abfd); | |
2290 | elf_symtab_shndx_list (abfd) = entry; | |
2291 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2292 | goto success; | |
2293 | } | |
9ad5cbcf | 2294 | |
bf67003b | 2295 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2296 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2297 | goto success; |
2298 | ||
252b5132 RH |
2299 | if (ehdr->e_shstrndx == shindex) |
2300 | { | |
2301 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2302 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2303 | goto success; |
252b5132 | 2304 | } |
bf67003b | 2305 | |
1b3a8575 AM |
2306 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2307 | { | |
2308 | symtab_strtab: | |
2309 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2310 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2311 | goto success; |
1b3a8575 | 2312 | } |
bf67003b | 2313 | |
1b3a8575 AM |
2314 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2315 | { | |
2316 | dynsymtab_strtab: | |
2317 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2318 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2319 | elf_elfsections (abfd)[shindex] = hdr; | |
2320 | /* We also treat this as a regular section, so that objcopy | |
2321 | can handle it. */ | |
bf67003b NC |
2322 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2323 | shindex); | |
2324 | goto success; | |
1b3a8575 | 2325 | } |
252b5132 | 2326 | |
1b3a8575 AM |
2327 | /* If the string table isn't one of the above, then treat it as a |
2328 | regular section. We need to scan all the headers to be sure, | |
2329 | just in case this strtab section appeared before the above. */ | |
2330 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2331 | { | |
2332 | unsigned int i, num_sec; | |
252b5132 | 2333 | |
1b3a8575 AM |
2334 | num_sec = elf_numsections (abfd); |
2335 | for (i = 1; i < num_sec; i++) | |
2336 | { | |
2337 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2338 | if (hdr2->sh_link == shindex) | |
2339 | { | |
933d961a JJ |
2340 | /* Prevent endless recursion on broken objects. */ |
2341 | if (i == shindex) | |
bf67003b | 2342 | goto fail; |
1b3a8575 | 2343 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2344 | goto fail; |
1b3a8575 AM |
2345 | if (elf_onesymtab (abfd) == i) |
2346 | goto symtab_strtab; | |
2347 | if (elf_dynsymtab (abfd) == i) | |
2348 | goto dynsymtab_strtab; | |
2349 | } | |
2350 | } | |
2351 | } | |
bf67003b NC |
2352 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2353 | goto success; | |
252b5132 RH |
2354 | |
2355 | case SHT_REL: | |
2356 | case SHT_RELA: | |
2357 | /* *These* do a lot of work -- but build no sections! */ | |
2358 | { | |
2359 | asection *target_sect; | |
d4730f92 | 2360 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2361 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2362 | struct bfd_elf_section_data *esdt; |
252b5132 | 2363 | |
aa2ca951 JJ |
2364 | if (hdr->sh_entsize |
2365 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2366 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2367 | goto fail; |
a50b2160 | 2368 | |
03ae5f59 | 2369 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2370 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2371 | { |
4eca0228 | 2372 | _bfd_error_handler |
695344c0 | 2373 | /* xgettext:c-format */ |
871b3ab2 | 2374 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2375 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2376 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2377 | shindex); | |
2378 | goto success; | |
03ae5f59 ILT |
2379 | } |
2380 | ||
252b5132 RH |
2381 | /* For some incomprehensible reason Oracle distributes |
2382 | libraries for Solaris in which some of the objects have | |
2383 | bogus sh_link fields. It would be nice if we could just | |
2384 | reject them, but, unfortunately, some people need to use | |
2385 | them. We scan through the section headers; if we find only | |
2386 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2387 | to it. I hope this doesn't break anything. |
2388 | ||
2389 | Don't do it on executable nor shared library. */ | |
2390 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2391 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2392 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2393 | { | |
9ad5cbcf | 2394 | unsigned int scan; |
252b5132 RH |
2395 | int found; |
2396 | ||
2397 | found = 0; | |
9ad5cbcf | 2398 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2399 | { |
2400 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2401 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2402 | { | |
2403 | if (found != 0) | |
2404 | { | |
2405 | found = 0; | |
2406 | break; | |
2407 | } | |
2408 | found = scan; | |
2409 | } | |
2410 | } | |
2411 | if (found != 0) | |
2412 | hdr->sh_link = found; | |
2413 | } | |
2414 | ||
2415 | /* Get the symbol table. */ | |
1b3a8575 AM |
2416 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2417 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2418 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2419 | goto fail; |
252b5132 | 2420 | |
a4bcd733 AM |
2421 | /* If this is an alloc section in an executable or shared |
2422 | library, or the reloc section does not use the main symbol | |
2423 | table we don't treat it as a reloc section. BFD can't | |
2424 | adequately represent such a section, so at least for now, | |
2425 | we don't try. We just present it as a normal section. We | |
2426 | also can't use it as a reloc section if it points to the | |
2427 | null section, an invalid section, another reloc section, or | |
2428 | its sh_link points to the null section. */ | |
2429 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2430 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2431 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2432 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2433 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2434 | || hdr->sh_info >= num_sec |
2435 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2436 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2437 | { |
2438 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2439 | shindex); | |
2440 | goto success; | |
2441 | } | |
252b5132 RH |
2442 | |
2443 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2444 | goto fail; |
2445 | ||
252b5132 RH |
2446 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2447 | if (target_sect == NULL) | |
bf67003b | 2448 | goto fail; |
252b5132 | 2449 | |
d4730f92 BS |
2450 | esdt = elf_section_data (target_sect); |
2451 | if (hdr->sh_type == SHT_RELA) | |
2452 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2453 | else |
d4730f92 BS |
2454 | p_hdr = &esdt->rel.hdr; |
2455 | ||
a7ba3896 NC |
2456 | /* PR 17512: file: 0b4f81b7. |
2457 | Also see PR 24456, for a file which deliberately has two reloc | |
2458 | sections. */ | |
06614111 | 2459 | if (*p_hdr != NULL) |
a7ba3896 NC |
2460 | { |
2461 | _bfd_error_handler | |
2462 | /* xgettext:c-format */ | |
2463 | (_("%pB: warning: multiple relocation sections for section %pA \ | |
2464 | found - ignoring all but the first"), | |
2465 | abfd, target_sect); | |
2466 | goto success; | |
2467 | } | |
ef53be89 | 2468 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2469 | if (hdr2 == NULL) |
bf67003b | 2470 | goto fail; |
252b5132 | 2471 | *hdr2 = *hdr; |
d4730f92 | 2472 | *p_hdr = hdr2; |
252b5132 | 2473 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2474 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2475 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2476 | target_sect->flags |= SEC_RELOC; |
2477 | target_sect->relocation = NULL; | |
2478 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2479 | /* In the section to which the relocations apply, mark whether |
2480 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2481 | if (hdr->sh_size != 0) |
d4730f92 BS |
2482 | { |
2483 | if (hdr->sh_type == SHT_RELA) | |
2484 | target_sect->use_rela_p = 1; | |
2485 | } | |
252b5132 | 2486 | abfd->flags |= HAS_RELOC; |
bf67003b | 2487 | goto success; |
252b5132 | 2488 | } |
252b5132 RH |
2489 | |
2490 | case SHT_GNU_verdef: | |
2491 | elf_dynverdef (abfd) = shindex; | |
2492 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2493 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2494 | goto success; | |
252b5132 RH |
2495 | |
2496 | case SHT_GNU_versym: | |
a50b2160 | 2497 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2498 | goto fail; |
2499 | ||
252b5132 RH |
2500 | elf_dynversym (abfd) = shindex; |
2501 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2502 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2503 | goto success; | |
252b5132 RH |
2504 | |
2505 | case SHT_GNU_verneed: | |
2506 | elf_dynverref (abfd) = shindex; | |
2507 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2508 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2509 | goto success; | |
252b5132 RH |
2510 | |
2511 | case SHT_SHLIB: | |
bf67003b | 2512 | goto success; |
252b5132 | 2513 | |
dbb410c3 | 2514 | case SHT_GROUP: |
44534af3 | 2515 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2516 | goto fail; |
2517 | ||
6dc132d9 | 2518 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2519 | goto fail; |
2520 | ||
bf67003b | 2521 | goto success; |
dbb410c3 | 2522 | |
252b5132 | 2523 | default: |
104d59d1 JM |
2524 | /* Possibly an attributes section. */ |
2525 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2526 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2527 | { | |
2528 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2529 | goto fail; |
104d59d1 | 2530 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2531 | goto success; |
104d59d1 JM |
2532 | } |
2533 | ||
252b5132 | 2534 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2535 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2536 | goto success; |
3eb70a79 L |
2537 | |
2538 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2539 | { | |
2540 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2541 | /* FIXME: How to properly handle allocated section reserved | |
2542 | for applications? */ | |
4eca0228 | 2543 | _bfd_error_handler |
695344c0 | 2544 | /* xgettext:c-format */ |
871b3ab2 | 2545 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2546 | abfd, hdr->sh_type, name); |
3eb70a79 | 2547 | else |
bf67003b NC |
2548 | { |
2549 | /* Allow sections reserved for applications. */ | |
2550 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2551 | shindex); | |
2552 | goto success; | |
2553 | } | |
3eb70a79 L |
2554 | } |
2555 | else if (hdr->sh_type >= SHT_LOPROC | |
2556 | && hdr->sh_type <= SHT_HIPROC) | |
2557 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2558 | _bfd_error_handler |
695344c0 | 2559 | /* xgettext:c-format */ |
871b3ab2 | 2560 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2561 | abfd, hdr->sh_type, name); |
3eb70a79 | 2562 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2563 | { |
2564 | /* Unrecognised OS-specific sections. */ | |
2565 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2566 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2567 | required to correctly process the section and the file should |
ff15b240 | 2568 | be rejected with an error message. */ |
4eca0228 | 2569 | _bfd_error_handler |
695344c0 | 2570 | /* xgettext:c-format */ |
871b3ab2 | 2571 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2572 | abfd, hdr->sh_type, name); |
ff15b240 | 2573 | else |
bf67003b NC |
2574 | { |
2575 | /* Otherwise it should be processed. */ | |
2576 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2577 | goto success; | |
2578 | } | |
ff15b240 | 2579 | } |
3eb70a79 L |
2580 | else |
2581 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2582 | _bfd_error_handler |
695344c0 | 2583 | /* xgettext:c-format */ |
871b3ab2 | 2584 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2585 | abfd, hdr->sh_type, name); |
3eb70a79 | 2586 | |
bf67003b | 2587 | goto fail; |
252b5132 RH |
2588 | } |
2589 | ||
bf67003b NC |
2590 | fail: |
2591 | ret = FALSE; | |
2592 | success: | |
e5b470e2 | 2593 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2594 | sections_being_created [shindex] = FALSE; |
2595 | if (-- nesting == 0) | |
5a4b0ccc NC |
2596 | { |
2597 | sections_being_created = NULL; | |
2598 | sections_being_created_abfd = abfd; | |
2599 | } | |
bf67003b | 2600 | return ret; |
252b5132 RH |
2601 | } |
2602 | ||
87d72d41 | 2603 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2604 | |
87d72d41 AM |
2605 | Elf_Internal_Sym * |
2606 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2607 | bfd *abfd, | |
2608 | unsigned long r_symndx) | |
ec338859 | 2609 | { |
ec338859 AM |
2610 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2611 | ||
a5d1b3b5 AM |
2612 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2613 | { | |
2614 | Elf_Internal_Shdr *symtab_hdr; | |
2615 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2616 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2617 | |
a5d1b3b5 AM |
2618 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2619 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2620 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2621 | return NULL; |
9ad5cbcf | 2622 | |
a5d1b3b5 AM |
2623 | if (cache->abfd != abfd) |
2624 | { | |
2625 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2626 | cache->abfd = abfd; | |
2627 | } | |
2628 | cache->indx[ent] = r_symndx; | |
ec338859 | 2629 | } |
a5d1b3b5 | 2630 | |
87d72d41 | 2631 | return &cache->sym[ent]; |
ec338859 AM |
2632 | } |
2633 | ||
252b5132 RH |
2634 | /* Given an ELF section number, retrieve the corresponding BFD |
2635 | section. */ | |
2636 | ||
2637 | asection * | |
91d6fa6a | 2638 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2639 | { |
91d6fa6a | 2640 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2641 | return NULL; |
91d6fa6a | 2642 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2643 | } |
2644 | ||
b35d266b | 2645 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2646 | { |
0112cd26 | 2647 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2648 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2649 | }; |
2650 | ||
b35d266b | 2651 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2652 | { |
0112cd26 | 2653 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2654 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2655 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2656 | }; |
2657 | ||
b35d266b | 2658 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2659 | { |
07d6d2b8 AM |
2660 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2661 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2662 | /* There are more DWARF sections than these, but they needn't be added here |
2663 | unless you have to cope with broken compilers that don't emit section | |
2664 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2665 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2666 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2667 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2668 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2669 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2670 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2671 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2672 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2673 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2674 | }; |
2675 | ||
b35d266b | 2676 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2677 | { |
07d6d2b8 | 2678 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2679 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2680 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2681 | }; |
2682 | ||
b35d266b | 2683 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2684 | { |
0112cd26 | 2685 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2686 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2687 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2688 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2689 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2690 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2691 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2692 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2693 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2694 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2695 | }; |
2696 | ||
b35d266b | 2697 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2698 | { |
07d6d2b8 AM |
2699 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2700 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2701 | }; |
2702 | ||
b35d266b | 2703 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2704 | { |
07d6d2b8 | 2705 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2706 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2707 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2708 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2709 | }; |
2710 | ||
b35d266b | 2711 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2712 | { |
0112cd26 | 2713 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2714 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2715 | }; |
2716 | ||
b35d266b | 2717 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2718 | { |
0112cd26 | 2719 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2720 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2721 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2722 | }; |
2723 | ||
b35d266b | 2724 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2725 | { |
6f9dbcd4 | 2726 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2727 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2728 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2729 | }; |
2730 | ||
b35d266b | 2731 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2732 | { |
0112cd26 NC |
2733 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2734 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2735 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2736 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2737 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2738 | }; |
2739 | ||
b35d266b | 2740 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2741 | { |
0112cd26 NC |
2742 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2743 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2744 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2745 | /* See struct bfd_elf_special_section declaration for the semantics of |
2746 | this special case where .prefix_length != strlen (.prefix). */ | |
2747 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2748 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2749 | }; |
2750 | ||
b35d266b | 2751 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2752 | { |
07d6d2b8 AM |
2753 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2754 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2755 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2756 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2757 | }; |
2758 | ||
1b315056 CS |
2759 | static const struct bfd_elf_special_section special_sections_z[] = |
2760 | { | |
07d6d2b8 AM |
2761 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2762 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2763 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2764 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2765 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2766 | }; |
2767 | ||
e4c93b56 | 2768 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2769 | { |
7f4d3958 | 2770 | special_sections_b, /* 'b' */ |
98ece1b3 | 2771 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2772 | special_sections_d, /* 'd' */ |
2773 | NULL, /* 'e' */ | |
2774 | special_sections_f, /* 'f' */ | |
2775 | special_sections_g, /* 'g' */ | |
2776 | special_sections_h, /* 'h' */ | |
2777 | special_sections_i, /* 'i' */ | |
2778 | NULL, /* 'j' */ | |
2779 | NULL, /* 'k' */ | |
2780 | special_sections_l, /* 'l' */ | |
2781 | NULL, /* 'm' */ | |
2782 | special_sections_n, /* 'n' */ | |
2783 | NULL, /* 'o' */ | |
2784 | special_sections_p, /* 'p' */ | |
2785 | NULL, /* 'q' */ | |
2786 | special_sections_r, /* 'r' */ | |
2787 | special_sections_s, /* 's' */ | |
2788 | special_sections_t, /* 't' */ | |
1b315056 CS |
2789 | NULL, /* 'u' */ |
2790 | NULL, /* 'v' */ | |
2791 | NULL, /* 'w' */ | |
2792 | NULL, /* 'x' */ | |
2793 | NULL, /* 'y' */ | |
2794 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2795 | }; |
2796 | ||
551b43fd AM |
2797 | const struct bfd_elf_special_section * |
2798 | _bfd_elf_get_special_section (const char *name, | |
2799 | const struct bfd_elf_special_section *spec, | |
2800 | unsigned int rela) | |
2f89ff8d L |
2801 | { |
2802 | int i; | |
7f4d3958 | 2803 | int len; |
7f4d3958 | 2804 | |
551b43fd | 2805 | len = strlen (name); |
7f4d3958 | 2806 | |
551b43fd | 2807 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2808 | { |
2809 | int suffix_len; | |
551b43fd | 2810 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2811 | |
2812 | if (len < prefix_len) | |
2813 | continue; | |
551b43fd | 2814 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2815 | continue; |
2816 | ||
551b43fd | 2817 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2818 | if (suffix_len <= 0) |
2819 | { | |
2820 | if (name[prefix_len] != 0) | |
2821 | { | |
2822 | if (suffix_len == 0) | |
2823 | continue; | |
2824 | if (name[prefix_len] != '.' | |
2825 | && (suffix_len == -2 | |
551b43fd | 2826 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2827 | continue; |
2828 | } | |
2829 | } | |
2830 | else | |
2831 | { | |
2832 | if (len < prefix_len + suffix_len) | |
2833 | continue; | |
2834 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2835 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2836 | suffix_len) != 0) |
2837 | continue; | |
2838 | } | |
551b43fd | 2839 | return &spec[i]; |
7dcb9820 | 2840 | } |
2f89ff8d L |
2841 | |
2842 | return NULL; | |
2843 | } | |
2844 | ||
7dcb9820 | 2845 | const struct bfd_elf_special_section * |
29ef7005 | 2846 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2847 | { |
551b43fd AM |
2848 | int i; |
2849 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2850 | const struct elf_backend_data *bed; |
2f89ff8d L |
2851 | |
2852 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2853 | if (sec->name == NULL) |
2854 | return NULL; | |
2f89ff8d | 2855 | |
29ef7005 L |
2856 | bed = get_elf_backend_data (abfd); |
2857 | spec = bed->special_sections; | |
2858 | if (spec) | |
2859 | { | |
2860 | spec = _bfd_elf_get_special_section (sec->name, | |
2861 | bed->special_sections, | |
2862 | sec->use_rela_p); | |
2863 | if (spec != NULL) | |
2864 | return spec; | |
2865 | } | |
2866 | ||
551b43fd AM |
2867 | if (sec->name[0] != '.') |
2868 | return NULL; | |
2f89ff8d | 2869 | |
551b43fd | 2870 | i = sec->name[1] - 'b'; |
1b315056 | 2871 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2872 | return NULL; |
2873 | ||
2874 | spec = special_sections[i]; | |
2f89ff8d | 2875 | |
551b43fd AM |
2876 | if (spec == NULL) |
2877 | return NULL; | |
2878 | ||
2879 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2880 | } |
2881 | ||
b34976b6 | 2882 | bfd_boolean |
217aa764 | 2883 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2884 | { |
2885 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2886 | const struct elf_backend_data *bed; |
7dcb9820 | 2887 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2888 | |
f0abc2a1 AM |
2889 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2890 | if (sdata == NULL) | |
2891 | { | |
a50b1753 | 2892 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2893 | sizeof (*sdata)); |
f0abc2a1 AM |
2894 | if (sdata == NULL) |
2895 | return FALSE; | |
217aa764 | 2896 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2897 | } |
bf572ba0 | 2898 | |
551b43fd AM |
2899 | /* Indicate whether or not this section should use RELA relocations. */ |
2900 | bed = get_elf_backend_data (abfd); | |
2901 | sec->use_rela_p = bed->default_use_rela_p; | |
2902 | ||
e843e0f8 L |
2903 | /* When we read a file, we don't need to set ELF section type and |
2904 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2905 | anyway. We will set ELF section type and flags for all linker | |
2906 | created sections. If user specifies BFD section flags, we will | |
2907 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2908 | elf_fake_sections. Special handling for .init_array/.fini_array |
2909 | output sections since they may contain .ctors/.dtors input | |
2910 | sections. We don't want _bfd_elf_init_private_section_data to | |
2911 | copy ELF section type from .ctors/.dtors input sections. */ | |
2912 | if (abfd->direction != read_direction | |
3496cb2a | 2913 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2914 | { |
551b43fd | 2915 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2916 | if (ssect != NULL |
2917 | && (!sec->flags | |
2918 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2919 | || ssect->type == SHT_INIT_ARRAY | |
2920 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2921 | { |
2922 | elf_section_type (sec) = ssect->type; | |
2923 | elf_section_flags (sec) = ssect->attr; | |
2924 | } | |
2f89ff8d L |
2925 | } |
2926 | ||
f592407e | 2927 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2928 | } |
2929 | ||
2930 | /* Create a new bfd section from an ELF program header. | |
2931 | ||
2932 | Since program segments have no names, we generate a synthetic name | |
2933 | of the form segment<NUM>, where NUM is generally the index in the | |
2934 | program header table. For segments that are split (see below) we | |
2935 | generate the names segment<NUM>a and segment<NUM>b. | |
2936 | ||
2937 | Note that some program segments may have a file size that is different than | |
2938 | (less than) the memory size. All this means is that at execution the | |
2939 | system must allocate the amount of memory specified by the memory size, | |
2940 | but only initialize it with the first "file size" bytes read from the | |
2941 | file. This would occur for example, with program segments consisting | |
2942 | of combined data+bss. | |
2943 | ||
2944 | To handle the above situation, this routine generates TWO bfd sections | |
2945 | for the single program segment. The first has the length specified by | |
2946 | the file size of the segment, and the second has the length specified | |
2947 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2948 | into its initialized and uninitialized parts. |
252b5132 RH |
2949 | |
2950 | */ | |
2951 | ||
b34976b6 | 2952 | bfd_boolean |
217aa764 AM |
2953 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2954 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2955 | int hdr_index, |
a50b1753 | 2956 | const char *type_name) |
252b5132 RH |
2957 | { |
2958 | asection *newsect; | |
2959 | char *name; | |
2960 | char namebuf[64]; | |
d4c88bbb | 2961 | size_t len; |
252b5132 RH |
2962 | int split; |
2963 | ||
2964 | split = ((hdr->p_memsz > 0) | |
2965 | && (hdr->p_filesz > 0) | |
2966 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2967 | |
2968 | if (hdr->p_filesz > 0) | |
252b5132 | 2969 | { |
91d6fa6a | 2970 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2971 | len = strlen (namebuf) + 1; |
a50b1753 | 2972 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2973 | if (!name) |
2974 | return FALSE; | |
2975 | memcpy (name, namebuf, len); | |
2976 | newsect = bfd_make_section (abfd, name); | |
2977 | if (newsect == NULL) | |
2978 | return FALSE; | |
2979 | newsect->vma = hdr->p_vaddr; | |
2980 | newsect->lma = hdr->p_paddr; | |
2981 | newsect->size = hdr->p_filesz; | |
2982 | newsect->filepos = hdr->p_offset; | |
2983 | newsect->flags |= SEC_HAS_CONTENTS; | |
2984 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2985 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2986 | { |
d5191d0c AM |
2987 | newsect->flags |= SEC_ALLOC; |
2988 | newsect->flags |= SEC_LOAD; | |
2989 | if (hdr->p_flags & PF_X) | |
2990 | { | |
2991 | /* FIXME: all we known is that it has execute PERMISSION, | |
2992 | may be data. */ | |
2993 | newsect->flags |= SEC_CODE; | |
2994 | } | |
2995 | } | |
2996 | if (!(hdr->p_flags & PF_W)) | |
2997 | { | |
2998 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2999 | } |
252b5132 RH |
3000 | } |
3001 | ||
d5191d0c | 3002 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 3003 | { |
d5191d0c AM |
3004 | bfd_vma align; |
3005 | ||
91d6fa6a | 3006 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 3007 | len = strlen (namebuf) + 1; |
a50b1753 | 3008 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3009 | if (!name) |
b34976b6 | 3010 | return FALSE; |
d4c88bbb | 3011 | memcpy (name, namebuf, len); |
252b5132 RH |
3012 | newsect = bfd_make_section (abfd, name); |
3013 | if (newsect == NULL) | |
b34976b6 | 3014 | return FALSE; |
252b5132 RH |
3015 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
3016 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 3017 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3018 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3019 | align = newsect->vma & -newsect->vma; | |
3020 | if (align == 0 || align > hdr->p_align) | |
3021 | align = hdr->p_align; | |
3022 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3023 | if (hdr->p_type == PT_LOAD) |
3024 | { | |
d5191d0c AM |
3025 | /* Hack for gdb. Segments that have not been modified do |
3026 | not have their contents written to a core file, on the | |
3027 | assumption that a debugger can find the contents in the | |
3028 | executable. We flag this case by setting the fake | |
3029 | section size to zero. Note that "real" bss sections will | |
3030 | always have their contents dumped to the core file. */ | |
3031 | if (bfd_get_format (abfd) == bfd_core) | |
3032 | newsect->size = 0; | |
252b5132 RH |
3033 | newsect->flags |= SEC_ALLOC; |
3034 | if (hdr->p_flags & PF_X) | |
3035 | newsect->flags |= SEC_CODE; | |
3036 | } | |
3037 | if (!(hdr->p_flags & PF_W)) | |
3038 | newsect->flags |= SEC_READONLY; | |
3039 | } | |
3040 | ||
b34976b6 | 3041 | return TRUE; |
252b5132 RH |
3042 | } |
3043 | ||
864619bb KS |
3044 | static bfd_boolean |
3045 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) | |
3046 | { | |
3047 | /* The return value is ignored. Build-ids are considered optional. */ | |
3048 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3049 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3050 | (templ, offset); | |
3051 | return FALSE; | |
3052 | } | |
3053 | ||
b34976b6 | 3054 | bfd_boolean |
91d6fa6a | 3055 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3056 | { |
9c5bfbb7 | 3057 | const struct elf_backend_data *bed; |
20cfcaae NC |
3058 | |
3059 | switch (hdr->p_type) | |
3060 | { | |
3061 | case PT_NULL: | |
91d6fa6a | 3062 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3063 | |
3064 | case PT_LOAD: | |
864619bb KS |
3065 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
3066 | return FALSE; | |
3067 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) | |
3068 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
3069 | return TRUE; | |
20cfcaae NC |
3070 | |
3071 | case PT_DYNAMIC: | |
91d6fa6a | 3072 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3073 | |
3074 | case PT_INTERP: | |
91d6fa6a | 3075 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3076 | |
3077 | case PT_NOTE: | |
91d6fa6a | 3078 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3079 | return FALSE; |
276da9b3 L |
3080 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3081 | hdr->p_align)) | |
b34976b6 AM |
3082 | return FALSE; |
3083 | return TRUE; | |
20cfcaae NC |
3084 | |
3085 | case PT_SHLIB: | |
91d6fa6a | 3086 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3087 | |
3088 | case PT_PHDR: | |
91d6fa6a | 3089 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3090 | |
811072d8 | 3091 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3092 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3093 | "eh_frame_hdr"); |
3094 | ||
2b05f1b7 | 3095 | case PT_GNU_STACK: |
91d6fa6a | 3096 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3097 | |
8c37241b | 3098 | case PT_GNU_RELRO: |
91d6fa6a | 3099 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3100 | |
20cfcaae | 3101 | default: |
8c1acd09 | 3102 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3103 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3104 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3105 | } |
3106 | } | |
3107 | ||
d4730f92 BS |
3108 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3109 | REL or RELA. */ | |
3110 | ||
3111 | Elf_Internal_Shdr * | |
3112 | _bfd_elf_single_rel_hdr (asection *sec) | |
3113 | { | |
3114 | if (elf_section_data (sec)->rel.hdr) | |
3115 | { | |
3116 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3117 | return elf_section_data (sec)->rel.hdr; | |
3118 | } | |
3119 | else | |
3120 | return elf_section_data (sec)->rela.hdr; | |
3121 | } | |
3122 | ||
3e19fb8f L |
3123 | static bfd_boolean |
3124 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3125 | Elf_Internal_Shdr *rel_hdr, | |
3126 | const char *sec_name, | |
3127 | bfd_boolean use_rela_p) | |
3128 | { | |
3129 | char *name = (char *) bfd_alloc (abfd, | |
3130 | sizeof ".rela" + strlen (sec_name)); | |
3131 | if (name == NULL) | |
3132 | return FALSE; | |
3133 | ||
3134 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3135 | rel_hdr->sh_name = | |
3136 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3137 | FALSE); | |
3138 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3139 | return FALSE; | |
3140 | ||
3141 | return TRUE; | |
3142 | } | |
3143 | ||
d4730f92 BS |
3144 | /* Allocate and initialize a section-header for a new reloc section, |
3145 | containing relocations against ASECT. It is stored in RELDATA. If | |
3146 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3147 | relocations. */ | |
23bc299b | 3148 | |
5d13b3b3 | 3149 | static bfd_boolean |
217aa764 | 3150 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3151 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3152 | const char *sec_name, |
3e19fb8f L |
3153 | bfd_boolean use_rela_p, |
3154 | bfd_boolean delay_st_name_p) | |
23bc299b | 3155 | { |
d4730f92 | 3156 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3157 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3158 | |
d4730f92 | 3159 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3160 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3161 | reldata->hdr = rel_hdr; |
23bc299b | 3162 | |
3e19fb8f L |
3163 | if (delay_st_name_p) |
3164 | rel_hdr->sh_name = (unsigned int) -1; | |
3165 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3166 | use_rela_p)) | |
b34976b6 | 3167 | return FALSE; |
23bc299b MM |
3168 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3169 | rel_hdr->sh_entsize = (use_rela_p | |
3170 | ? bed->s->sizeof_rela | |
3171 | : bed->s->sizeof_rel); | |
72de5009 | 3172 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3173 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3174 | rel_hdr->sh_addr = 0; |
3175 | rel_hdr->sh_size = 0; | |
3176 | rel_hdr->sh_offset = 0; | |
3177 | ||
b34976b6 | 3178 | return TRUE; |
23bc299b MM |
3179 | } |
3180 | ||
94be91de JB |
3181 | /* Return the default section type based on the passed in section flags. */ |
3182 | ||
3183 | int | |
3184 | bfd_elf_get_default_section_type (flagword flags) | |
3185 | { | |
0e41bebb | 3186 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3187 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3188 | return SHT_NOBITS; |
3189 | return SHT_PROGBITS; | |
3190 | } | |
3191 | ||
d4730f92 BS |
3192 | struct fake_section_arg |
3193 | { | |
3194 | struct bfd_link_info *link_info; | |
3195 | bfd_boolean failed; | |
3196 | }; | |
3197 | ||
252b5132 RH |
3198 | /* Set up an ELF internal section header for a section. */ |
3199 | ||
252b5132 | 3200 | static void |
d4730f92 | 3201 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3202 | { |
d4730f92 | 3203 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3204 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3205 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3206 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3207 | unsigned int sh_type; |
0ce398f1 | 3208 | const char *name = asect->name; |
3e19fb8f | 3209 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3210 | |
d4730f92 | 3211 | if (arg->failed) |
252b5132 RH |
3212 | { |
3213 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3214 | loop. */ |
252b5132 RH |
3215 | return; |
3216 | } | |
3217 | ||
d4730f92 | 3218 | this_hdr = &esd->this_hdr; |
252b5132 | 3219 | |
f6fe1ccd | 3220 | if (arg->link_info) |
0ce398f1 | 3221 | { |
f6fe1ccd L |
3222 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3223 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3224 | && (asect->flags & SEC_DEBUGGING) | |
3225 | && name[1] == 'd' | |
3226 | && name[6] == '_') | |
3227 | { | |
3228 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3229 | compressed. */ | |
3230 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3231 | |
dd905818 | 3232 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3233 | name to section name section after it is compressed in |
3234 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3235 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3236 | } |
3237 | } | |
3238 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3239 | { | |
3240 | /* objcopy: rename output DWARF debug section. */ | |
3241 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3242 | { | |
3243 | /* When we decompress or compress with SHF_COMPRESSED, | |
3244 | convert section name from .zdebug_* to .debug_* if | |
3245 | needed. */ | |
3246 | if (name[1] == 'z') | |
3247 | { | |
3248 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3249 | if (new_name == NULL) | |
3250 | { | |
3251 | arg->failed = TRUE; | |
3252 | return; | |
3253 | } | |
3254 | name = new_name; | |
3255 | } | |
3256 | } | |
3257 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3258 | { |
f6fe1ccd L |
3259 | /* PR binutils/18087: Compression does not always make a |
3260 | section smaller. So only rename the section when | |
3261 | compression has actually taken place. If input section | |
3262 | name is .zdebug_*, we should never compress it again. */ | |
3263 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3264 | if (new_name == NULL) |
3265 | { | |
3266 | arg->failed = TRUE; | |
3267 | return; | |
3268 | } | |
f6fe1ccd L |
3269 | BFD_ASSERT (name[1] != 'z'); |
3270 | name = new_name; | |
0ce398f1 L |
3271 | } |
3272 | } | |
3273 | ||
3e19fb8f L |
3274 | if (delay_st_name_p) |
3275 | this_hdr->sh_name = (unsigned int) -1; | |
3276 | else | |
252b5132 | 3277 | { |
3e19fb8f L |
3278 | this_hdr->sh_name |
3279 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3280 | name, FALSE); | |
3281 | if (this_hdr->sh_name == (unsigned int) -1) | |
3282 | { | |
3283 | arg->failed = TRUE; | |
3284 | return; | |
3285 | } | |
252b5132 RH |
3286 | } |
3287 | ||
a4d8e49b | 3288 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3289 | |
3290 | if ((asect->flags & SEC_ALLOC) != 0 | |
3291 | || asect->user_set_vma) | |
3292 | this_hdr->sh_addr = asect->vma; | |
3293 | else | |
3294 | this_hdr->sh_addr = 0; | |
3295 | ||
3296 | this_hdr->sh_offset = 0; | |
eea6121a | 3297 | this_hdr->sh_size = asect->size; |
252b5132 | 3298 | this_hdr->sh_link = 0; |
c86934ce NC |
3299 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3300 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3301 | { | |
4eca0228 | 3302 | _bfd_error_handler |
695344c0 | 3303 | /* xgettext:c-format */ |
9793eb77 | 3304 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3305 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3306 | arg->failed = TRUE; |
3307 | return; | |
3308 | } | |
72de5009 | 3309 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3310 | /* The sh_entsize and sh_info fields may have been set already by |
3311 | copy_private_section_data. */ | |
3312 | ||
3313 | this_hdr->bfd_section = asect; | |
3314 | this_hdr->contents = NULL; | |
3315 | ||
3cddba1e L |
3316 | /* If the section type is unspecified, we set it based on |
3317 | asect->flags. */ | |
98ece1b3 AM |
3318 | if ((asect->flags & SEC_GROUP) != 0) |
3319 | sh_type = SHT_GROUP; | |
98ece1b3 | 3320 | else |
94be91de | 3321 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3322 | |
3cddba1e | 3323 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3324 | this_hdr->sh_type = sh_type; |
3325 | else if (this_hdr->sh_type == SHT_NOBITS | |
3326 | && sh_type == SHT_PROGBITS | |
3327 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3328 | { |
98ece1b3 AM |
3329 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3330 | allow the link to proceed. This can happen when users link | |
3331 | non-bss input sections to bss output sections, or emit data | |
3332 | to a bss output section via a linker script. */ | |
4eca0228 | 3333 | _bfd_error_handler |
871b3ab2 | 3334 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3335 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3336 | } |
3337 | ||
2f89ff8d | 3338 | switch (this_hdr->sh_type) |
252b5132 | 3339 | { |
2f89ff8d | 3340 | default: |
2f89ff8d L |
3341 | break; |
3342 | ||
3343 | case SHT_STRTAB: | |
2f89ff8d L |
3344 | case SHT_NOTE: |
3345 | case SHT_NOBITS: | |
3346 | case SHT_PROGBITS: | |
3347 | break; | |
606851fb AM |
3348 | |
3349 | case SHT_INIT_ARRAY: | |
3350 | case SHT_FINI_ARRAY: | |
3351 | case SHT_PREINIT_ARRAY: | |
3352 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3353 | break; | |
2f89ff8d L |
3354 | |
3355 | case SHT_HASH: | |
c7ac6ff8 | 3356 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3357 | break; |
5de3bf90 | 3358 | |
2f89ff8d | 3359 | case SHT_DYNSYM: |
252b5132 | 3360 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3361 | break; |
3362 | ||
3363 | case SHT_DYNAMIC: | |
252b5132 | 3364 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3365 | break; |
3366 | ||
3367 | case SHT_RELA: | |
3368 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3369 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3370 | break; | |
3371 | ||
3372 | case SHT_REL: | |
3373 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3374 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3375 | break; | |
3376 | ||
3377 | case SHT_GNU_versym: | |
252b5132 | 3378 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3379 | break; |
3380 | ||
3381 | case SHT_GNU_verdef: | |
252b5132 RH |
3382 | this_hdr->sh_entsize = 0; |
3383 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3384 | cverdefs. The linker will set cverdefs, but sh_info will be |
3385 | zero. */ | |
252b5132 RH |
3386 | if (this_hdr->sh_info == 0) |
3387 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3388 | else | |
3389 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3390 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3391 | break; |
3392 | ||
3393 | case SHT_GNU_verneed: | |
252b5132 RH |
3394 | this_hdr->sh_entsize = 0; |
3395 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3396 | cverrefs. The linker will set cverrefs, but sh_info will be |
3397 | zero. */ | |
252b5132 RH |
3398 | if (this_hdr->sh_info == 0) |
3399 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3400 | else | |
3401 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3402 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3403 | break; |
3404 | ||
3405 | case SHT_GROUP: | |
1783205a | 3406 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3407 | break; |
fdc90cb4 JJ |
3408 | |
3409 | case SHT_GNU_HASH: | |
3410 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3411 | break; | |
dbb410c3 | 3412 | } |
252b5132 RH |
3413 | |
3414 | if ((asect->flags & SEC_ALLOC) != 0) | |
3415 | this_hdr->sh_flags |= SHF_ALLOC; | |
3416 | if ((asect->flags & SEC_READONLY) == 0) | |
3417 | this_hdr->sh_flags |= SHF_WRITE; | |
3418 | if ((asect->flags & SEC_CODE) != 0) | |
3419 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3420 | if ((asect->flags & SEC_MERGE) != 0) |
3421 | { | |
3422 | this_hdr->sh_flags |= SHF_MERGE; | |
3423 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3424 | } |
84865015 NC |
3425 | if ((asect->flags & SEC_STRINGS) != 0) |
3426 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3427 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3428 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3429 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3430 | { |
3431 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3432 | if (asect->size == 0 |
3433 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3434 | { |
3a800eb9 | 3435 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3436 | |
704afa60 | 3437 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3438 | if (o != NULL) |
3439 | { | |
704afa60 | 3440 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3441 | if (this_hdr->sh_size != 0) |
3442 | this_hdr->sh_type = SHT_NOBITS; | |
3443 | } | |
704afa60 JJ |
3444 | } |
3445 | } | |
18ae9cc1 L |
3446 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3447 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3448 | |
d4730f92 BS |
3449 | /* If the section has relocs, set up a section header for the |
3450 | SHT_REL[A] section. If two relocation sections are required for | |
3451 | this section, it is up to the processor-specific back-end to | |
3452 | create the other. */ | |
3453 | if ((asect->flags & SEC_RELOC) != 0) | |
3454 | { | |
3455 | /* When doing a relocatable link, create both REL and RELA sections if | |
3456 | needed. */ | |
3457 | if (arg->link_info | |
3458 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3459 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3460 | && (bfd_link_relocatable (arg->link_info) |
3461 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3462 | { |
3463 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3464 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3465 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3466 | { |
3467 | arg->failed = TRUE; | |
3468 | return; | |
3469 | } | |
3470 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3471 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3472 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3473 | { |
3474 | arg->failed = TRUE; | |
3475 | return; | |
3476 | } | |
3477 | } | |
3478 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3479 | (asect->use_rela_p | |
3480 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3481 | name, |
3e19fb8f L |
3482 | asect->use_rela_p, |
3483 | delay_st_name_p)) | |
db4677b8 | 3484 | { |
d4730f92 | 3485 | arg->failed = TRUE; |
db4677b8 AM |
3486 | return; |
3487 | } | |
d4730f92 BS |
3488 | } |
3489 | ||
252b5132 | 3490 | /* Check for processor-specific section types. */ |
0414f35b | 3491 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3492 | if (bed->elf_backend_fake_sections |
3493 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3494 | { |
3495 | arg->failed = TRUE; | |
3496 | return; | |
3497 | } | |
252b5132 | 3498 | |
42bb2e33 | 3499 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3500 | { |
3501 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3502 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3503 | this_hdr->sh_type = sh_type; |
3504 | } | |
252b5132 RH |
3505 | } |
3506 | ||
bcacc0f5 AM |
3507 | /* Fill in the contents of a SHT_GROUP section. Called from |
3508 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3509 | when ELF targets use the generic linker, ld. Called for ld -r | |
3510 | from bfd_elf_final_link. */ | |
dbb410c3 | 3511 | |
1126897b | 3512 | void |
217aa764 | 3513 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3514 | { |
a50b1753 | 3515 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3516 | asection *elt, *first; |
dbb410c3 | 3517 | unsigned char *loc; |
b34976b6 | 3518 | bfd_boolean gas; |
dbb410c3 | 3519 | |
7e4111ad L |
3520 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3521 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3522 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3523 | || sec->size == 0 | |
dbb410c3 AM |
3524 | || *failedptr) |
3525 | return; | |
3526 | ||
bcacc0f5 AM |
3527 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3528 | { | |
3529 | unsigned long symindx = 0; | |
3530 | ||
3531 | /* elf_group_id will have been set up by objcopy and the | |
3532 | generic linker. */ | |
3533 | if (elf_group_id (sec) != NULL) | |
3534 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3535 | |
bcacc0f5 AM |
3536 | if (symindx == 0) |
3537 | { | |
3538 | /* If called from the assembler, swap_out_syms will have set up | |
3539 | elf_section_syms. */ | |
3540 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3541 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3542 | } | |
3543 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3544 | } | |
3545 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3546 | { |
bcacc0f5 AM |
3547 | /* The ELF backend linker sets sh_info to -2 when the group |
3548 | signature symbol is global, and thus the index can't be | |
3549 | set until all local symbols are output. */ | |
53720c49 AM |
3550 | asection *igroup; |
3551 | struct bfd_elf_section_data *sec_data; | |
3552 | unsigned long symndx; | |
3553 | unsigned long extsymoff; | |
bcacc0f5 AM |
3554 | struct elf_link_hash_entry *h; |
3555 | ||
53720c49 AM |
3556 | /* The point of this little dance to the first SHF_GROUP section |
3557 | then back to the SHT_GROUP section is that this gets us to | |
3558 | the SHT_GROUP in the input object. */ | |
3559 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3560 | sec_data = elf_section_data (igroup); | |
3561 | symndx = sec_data->this_hdr.sh_info; | |
3562 | extsymoff = 0; | |
bcacc0f5 AM |
3563 | if (!elf_bad_symtab (igroup->owner)) |
3564 | { | |
3565 | Elf_Internal_Shdr *symtab_hdr; | |
3566 | ||
3567 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3568 | extsymoff = symtab_hdr->sh_info; | |
3569 | } | |
3570 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3571 | while (h->root.type == bfd_link_hash_indirect | |
3572 | || h->root.type == bfd_link_hash_warning) | |
3573 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3574 | ||
3575 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3576 | } |
dbb410c3 | 3577 | |
1126897b | 3578 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3579 | gas = TRUE; |
dbb410c3 AM |
3580 | if (sec->contents == NULL) |
3581 | { | |
b34976b6 | 3582 | gas = FALSE; |
a50b1753 | 3583 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3584 | |
3585 | /* Arrange for the section to be written out. */ | |
3586 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3587 | if (sec->contents == NULL) |
3588 | { | |
b34976b6 | 3589 | *failedptr = TRUE; |
dbb410c3 AM |
3590 | return; |
3591 | } | |
3592 | } | |
3593 | ||
eea6121a | 3594 | loc = sec->contents + sec->size; |
dbb410c3 | 3595 | |
9dce4196 AM |
3596 | /* Get the pointer to the first section in the group that gas |
3597 | squirreled away here. objcopy arranges for this to be set to the | |
3598 | start of the input section group. */ | |
3599 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3600 | |
3601 | /* First element is a flag word. Rest of section is elf section | |
3602 | indices for all the sections of the group. Write them backwards | |
3603 | just to keep the group in the same order as given in .section | |
3604 | directives, not that it matters. */ | |
3605 | while (elt != NULL) | |
3606 | { | |
9dce4196 | 3607 | asection *s; |
9dce4196 | 3608 | |
9dce4196 | 3609 | s = elt; |
415f38a6 AM |
3610 | if (!gas) |
3611 | s = s->output_section; | |
3612 | if (s != NULL | |
3613 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3614 | { |
db4677b8 | 3615 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3616 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3617 | ||
3618 | if (elf_sec->rel.hdr != NULL | |
3619 | && (gas | |
3620 | || (input_elf_sec->rel.hdr != NULL | |
3621 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3622 | { |
28e07a05 | 3623 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3624 | loc -= 4; |
3625 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3626 | } | |
28e07a05 AM |
3627 | if (elf_sec->rela.hdr != NULL |
3628 | && (gas | |
3629 | || (input_elf_sec->rela.hdr != NULL | |
3630 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3631 | { |
28e07a05 | 3632 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3633 | loc -= 4; |
3634 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3635 | } | |
01e1a5bc | 3636 | loc -= 4; |
db4677b8 | 3637 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3638 | } |
945906ff | 3639 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3640 | if (elt == first) |
3641 | break; | |
dbb410c3 AM |
3642 | } |
3643 | ||
7bdf4127 AB |
3644 | loc -= 4; |
3645 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3646 | |
9dce4196 | 3647 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3648 | } |
3649 | ||
bce964aa AM |
3650 | /* Given NAME, the name of a relocation section stripped of its |
3651 | .rel/.rela prefix, return the section in ABFD to which the | |
3652 | relocations apply. */ | |
bd53a53a L |
3653 | |
3654 | asection * | |
bce964aa AM |
3655 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3656 | { | |
3657 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3658 | section likely apply to .got.plt or .got section. */ | |
3659 | if (get_elf_backend_data (abfd)->want_got_plt | |
3660 | && strcmp (name, ".plt") == 0) | |
3661 | { | |
3662 | asection *sec; | |
3663 | ||
3664 | name = ".got.plt"; | |
3665 | sec = bfd_get_section_by_name (abfd, name); | |
3666 | if (sec != NULL) | |
3667 | return sec; | |
3668 | name = ".got"; | |
3669 | } | |
3670 | ||
3671 | return bfd_get_section_by_name (abfd, name); | |
3672 | } | |
3673 | ||
3674 | /* Return the section to which RELOC_SEC applies. */ | |
3675 | ||
3676 | static asection * | |
3677 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3678 | { |
3679 | const char *name; | |
3680 | unsigned int type; | |
3681 | bfd *abfd; | |
bce964aa | 3682 | const struct elf_backend_data *bed; |
bd53a53a L |
3683 | |
3684 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3685 | if (type != SHT_REL && type != SHT_RELA) | |
3686 | return NULL; | |
3687 | ||
3688 | /* We look up the section the relocs apply to by name. */ | |
3689 | name = reloc_sec->name; | |
bce964aa AM |
3690 | if (strncmp (name, ".rel", 4) != 0) |
3691 | return NULL; | |
3692 | name += 4; | |
3693 | if (type == SHT_RELA && *name++ != 'a') | |
3694 | return NULL; | |
bd53a53a | 3695 | |
bd53a53a | 3696 | abfd = reloc_sec->owner; |
bce964aa AM |
3697 | bed = get_elf_backend_data (abfd); |
3698 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3699 | } |
3700 | ||
252b5132 RH |
3701 | /* Assign all ELF section numbers. The dummy first section is handled here |
3702 | too. The link/info pointers for the standard section types are filled | |
3703 | in here too, while we're at it. */ | |
3704 | ||
b34976b6 | 3705 | static bfd_boolean |
da9f89d4 | 3706 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3707 | { |
3708 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3709 | asection *sec; | |
3e19fb8f | 3710 | unsigned int section_number; |
252b5132 | 3711 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3712 | struct bfd_elf_section_data *d; |
3516e984 | 3713 | bfd_boolean need_symtab; |
446f7ed5 | 3714 | size_t amt; |
252b5132 RH |
3715 | |
3716 | section_number = 1; | |
3717 | ||
2b0f7ef9 JJ |
3718 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3719 | ||
da9f89d4 | 3720 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3721 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3722 | { |
ef53be89 | 3723 | size_t reloc_count = 0; |
14f2c699 | 3724 | |
da9f89d4 | 3725 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3726 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3727 | { |
5daa8fe7 | 3728 | d = elf_section_data (sec); |
da9f89d4 L |
3729 | |
3730 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3731 | { |
5daa8fe7 | 3732 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3733 | { |
3734 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3735 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3736 | abfd->section_count--; |
da9f89d4 | 3737 | } |
08a40648 | 3738 | else |
4fbb74a6 | 3739 | d->this_idx = section_number++; |
da9f89d4 | 3740 | } |
14f2c699 L |
3741 | |
3742 | /* Count relocations. */ | |
3743 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3744 | } |
14f2c699 L |
3745 | |
3746 | /* Clear HAS_RELOC if there are no relocations. */ | |
3747 | if (reloc_count == 0) | |
3748 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3749 | } |
3750 | ||
3751 | for (sec = abfd->sections; sec; sec = sec->next) | |
3752 | { | |
3753 | d = elf_section_data (sec); | |
3754 | ||
3755 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3756 | d->this_idx = section_number++; |
3e19fb8f L |
3757 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3758 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3759 | if (d->rel.hdr) |
2b0f7ef9 | 3760 | { |
d4730f92 | 3761 | d->rel.idx = section_number++; |
3e19fb8f L |
3762 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3763 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3764 | } |
d4730f92 BS |
3765 | else |
3766 | d->rel.idx = 0; | |
23bc299b | 3767 | |
d4730f92 | 3768 | if (d->rela.hdr) |
2b0f7ef9 | 3769 | { |
d4730f92 | 3770 | d->rela.idx = section_number++; |
3e19fb8f L |
3771 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3772 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3773 | } |
23bc299b | 3774 | else |
d4730f92 | 3775 | d->rela.idx = 0; |
252b5132 RH |
3776 | } |
3777 | ||
3516e984 L |
3778 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3779 | || (link_info == NULL | |
3780 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3781 | == HAS_RELOC))); | |
3782 | if (need_symtab) | |
252b5132 | 3783 | { |
12bd6957 | 3784 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3785 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3786 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3787 | { |
7a6e0d89 | 3788 | elf_section_list *entry; |
6a40cf0c NC |
3789 | |
3790 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3791 | ||
7a6e0d89 | 3792 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3793 | entry->ndx = section_number++; |
3794 | elf_symtab_shndx_list (abfd) = entry; | |
3795 | entry->hdr.sh_name | |
9ad5cbcf | 3796 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3797 | ".symtab_shndx", FALSE); |
6a40cf0c | 3798 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3799 | return FALSE; |
9ad5cbcf | 3800 | } |
12bd6957 | 3801 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3802 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3803 | } |
3804 | ||
dd905818 NC |
3805 | elf_shstrtab_sec (abfd) = section_number++; |
3806 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3807 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3808 | ||
1c52a645 L |
3809 | if (section_number >= SHN_LORESERVE) |
3810 | { | |
695344c0 | 3811 | /* xgettext:c-format */ |
871b3ab2 | 3812 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3813 | abfd, section_number); |
3814 | return FALSE; | |
3815 | } | |
3816 | ||
9ad5cbcf | 3817 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3818 | elf_elfheader (abfd)->e_shnum = section_number; |
3819 | ||
3820 | /* Set up the list of section header pointers, in agreement with the | |
3821 | indices. */ | |
446f7ed5 AM |
3822 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
3823 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
252b5132 | 3824 | if (i_shdrp == NULL) |
b34976b6 | 3825 | return FALSE; |
252b5132 | 3826 | |
a50b1753 | 3827 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3828 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3829 | if (i_shdrp[0] == NULL) |
3830 | { | |
3831 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3832 | return FALSE; |
252b5132 | 3833 | } |
252b5132 RH |
3834 | |
3835 | elf_elfsections (abfd) = i_shdrp; | |
3836 | ||
12bd6957 | 3837 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3838 | if (need_symtab) |
252b5132 | 3839 | { |
12bd6957 | 3840 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3841 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3842 | { |
6a40cf0c NC |
3843 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3844 | BFD_ASSERT (entry != NULL); | |
3845 | i_shdrp[entry->ndx] = & entry->hdr; | |
3846 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3847 | } |
12bd6957 AM |
3848 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3849 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3850 | } |
38ce5b11 | 3851 | |
252b5132 RH |
3852 | for (sec = abfd->sections; sec; sec = sec->next) |
3853 | { | |
252b5132 | 3854 | asection *s; |
252b5132 | 3855 | |
91d6fa6a NC |
3856 | d = elf_section_data (sec); |
3857 | ||
252b5132 | 3858 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3859 | if (d->rel.idx != 0) |
3860 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3861 | if (d->rela.idx != 0) | |
3862 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3863 | |
3864 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3865 | ||
3866 | /* sh_link of a reloc section is the section index of the symbol | |
3867 | table. sh_info is the section index of the section to which | |
3868 | the relocation entries apply. */ | |
d4730f92 | 3869 | if (d->rel.idx != 0) |
252b5132 | 3870 | { |
12bd6957 | 3871 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3872 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3873 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3874 | } |
d4730f92 | 3875 | if (d->rela.idx != 0) |
23bc299b | 3876 | { |
12bd6957 | 3877 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3878 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3879 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3880 | } |
252b5132 | 3881 | |
38ce5b11 L |
3882 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3883 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3884 | { | |
3885 | s = elf_linked_to_section (sec); | |
3886 | if (s) | |
38ce5b11 | 3887 | { |
f2876037 | 3888 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3889 | if (link_info != NULL) |
38ce5b11 | 3890 | { |
f2876037 | 3891 | /* Check discarded linkonce section. */ |
dbaa2011 | 3892 | if (discarded_section (s)) |
38ce5b11 | 3893 | { |
ccd2ec6a | 3894 | asection *kept; |
4eca0228 | 3895 | _bfd_error_handler |
695344c0 | 3896 | /* xgettext:c-format */ |
871b3ab2 AM |
3897 | (_("%pB: sh_link of section `%pA' points to" |
3898 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3899 | abfd, d->this_hdr.bfd_section, |
3900 | s, s->owner); | |
3901 | /* Point to the kept section if it has the same | |
3902 | size as the discarded one. */ | |
c0f00686 | 3903 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3904 | if (kept == NULL) |
185d09ad | 3905 | { |
ccd2ec6a L |
3906 | bfd_set_error (bfd_error_bad_value); |
3907 | return FALSE; | |
185d09ad | 3908 | } |
ccd2ec6a | 3909 | s = kept; |
38ce5b11 | 3910 | } |
e424ecc8 | 3911 | |
ccd2ec6a L |
3912 | s = s->output_section; |
3913 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3914 | } |
f2876037 L |
3915 | else |
3916 | { | |
3917 | /* Handle objcopy. */ | |
3918 | if (s->output_section == NULL) | |
3919 | { | |
4eca0228 | 3920 | _bfd_error_handler |
695344c0 | 3921 | /* xgettext:c-format */ |
871b3ab2 AM |
3922 | (_("%pB: sh_link of section `%pA' points to" |
3923 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3924 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3925 | bfd_set_error (bfd_error_bad_value); | |
3926 | return FALSE; | |
3927 | } | |
3928 | s = s->output_section; | |
3929 | } | |
ccd2ec6a L |
3930 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3931 | } | |
3932 | else | |
3933 | { | |
3934 | /* PR 290: | |
3935 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3936 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3937 | sh_info fields. Hence we could get the situation | |
08a40648 | 3938 | where s is NULL. */ |
ccd2ec6a L |
3939 | const struct elf_backend_data *bed |
3940 | = get_elf_backend_data (abfd); | |
3941 | if (bed->link_order_error_handler) | |
3942 | bed->link_order_error_handler | |
695344c0 | 3943 | /* xgettext:c-format */ |
871b3ab2 | 3944 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3945 | abfd, sec); |
38ce5b11 L |
3946 | } |
3947 | } | |
3948 | ||
252b5132 RH |
3949 | switch (d->this_hdr.sh_type) |
3950 | { | |
3951 | case SHT_REL: | |
3952 | case SHT_RELA: | |
3953 | /* A reloc section which we are treating as a normal BFD | |
3954 | section. sh_link is the section index of the symbol | |
3955 | table. sh_info is the section index of the section to | |
3956 | which the relocation entries apply. We assume that an | |
3957 | allocated reloc section uses the dynamic symbol table. | |
3958 | FIXME: How can we be sure? */ | |
3959 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3960 | if (s != NULL) | |
3961 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3962 | ||
bce964aa | 3963 | s = elf_get_reloc_section (sec); |
252b5132 | 3964 | if (s != NULL) |
9ef5d938 L |
3965 | { |
3966 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3967 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3968 | } | |
252b5132 RH |
3969 | break; |
3970 | ||
3971 | case SHT_STRTAB: | |
3972 | /* We assume that a section named .stab*str is a stabs | |
3973 | string section. We look for a section with the same name | |
3974 | but without the trailing ``str'', and set its sh_link | |
3975 | field to point to this section. */ | |
0112cd26 | 3976 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3977 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3978 | { | |
3979 | size_t len; | |
3980 | char *alc; | |
3981 | ||
3982 | len = strlen (sec->name); | |
a50b1753 | 3983 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3984 | if (alc == NULL) |
b34976b6 | 3985 | return FALSE; |
d4c88bbb | 3986 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3987 | alc[len - 3] = '\0'; |
3988 | s = bfd_get_section_by_name (abfd, alc); | |
3989 | free (alc); | |
3990 | if (s != NULL) | |
3991 | { | |
3992 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3993 | ||
3994 | /* This is a .stab section. */ | |
0594c12d AM |
3995 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3996 | elf_section_data (s)->this_hdr.sh_entsize | |
3997 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3998 | } |
3999 | } | |
4000 | break; | |
4001 | ||
4002 | case SHT_DYNAMIC: | |
4003 | case SHT_DYNSYM: | |
4004 | case SHT_GNU_verneed: | |
4005 | case SHT_GNU_verdef: | |
4006 | /* sh_link is the section header index of the string table | |
4007 | used for the dynamic entries, or the symbol table, or the | |
4008 | version strings. */ | |
4009 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
4010 | if (s != NULL) | |
4011 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4012 | break; | |
4013 | ||
7f1204bb JJ |
4014 | case SHT_GNU_LIBLIST: |
4015 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
4016 | list used for the dynamic entries, or the symbol table, or |
4017 | the version strings. */ | |
7f1204bb JJ |
4018 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
4019 | ? ".dynstr" : ".gnu.libstr"); | |
4020 | if (s != NULL) | |
4021 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4022 | break; | |
4023 | ||
252b5132 | 4024 | case SHT_HASH: |
fdc90cb4 | 4025 | case SHT_GNU_HASH: |
252b5132 RH |
4026 | case SHT_GNU_versym: |
4027 | /* sh_link is the section header index of the symbol table | |
4028 | this hash table or version table is for. */ | |
4029 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4030 | if (s != NULL) | |
4031 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4032 | break; | |
dbb410c3 AM |
4033 | |
4034 | case SHT_GROUP: | |
12bd6957 | 4035 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4036 | } |
4037 | } | |
4038 | ||
3e19fb8f L |
4039 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4040 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4041 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4042 | ||
b34976b6 | 4043 | return TRUE; |
252b5132 RH |
4044 | } |
4045 | ||
5372391b | 4046 | static bfd_boolean |
217aa764 | 4047 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4048 | { |
4049 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4050 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4051 | if (bed->elf_backend_sym_is_global) |
4052 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4053 | |
e47bf690 | 4054 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4055 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4056 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4057 | } |
4058 | ||
76359541 TP |
4059 | /* Filter global symbols of ABFD to include in the import library. All |
4060 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4061 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4062 | the beginning of that array. | |
4063 | ||
4064 | Returns the number of symbols to keep. */ | |
4065 | ||
4066 | unsigned int | |
4067 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4068 | asymbol **syms, long symcount) | |
4069 | { | |
4070 | long src_count, dst_count = 0; | |
4071 | ||
4072 | for (src_count = 0; src_count < symcount; src_count++) | |
4073 | { | |
4074 | asymbol *sym = syms[src_count]; | |
4075 | char *name = (char *) bfd_asymbol_name (sym); | |
4076 | struct bfd_link_hash_entry *h; | |
4077 | ||
4078 | if (!sym_is_global (abfd, sym)) | |
4079 | continue; | |
4080 | ||
4081 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4082 | if (h == NULL) |
4083 | continue; | |
76359541 TP |
4084 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4085 | continue; | |
76359541 TP |
4086 | if (h->linker_def || h->ldscript_def) |
4087 | continue; | |
4088 | ||
4089 | syms[dst_count++] = sym; | |
4090 | } | |
4091 | ||
4092 | syms[dst_count] = NULL; | |
4093 | ||
4094 | return dst_count; | |
4095 | } | |
4096 | ||
5372391b | 4097 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4098 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4099 | |
4100 | static bfd_boolean | |
4101 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4102 | { | |
c6d8cab4 L |
4103 | elf_symbol_type *type_ptr; |
4104 | ||
db0c309f NC |
4105 | if (sym == NULL) |
4106 | return FALSE; | |
4107 | ||
c6d8cab4 L |
4108 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4109 | return FALSE; | |
4110 | ||
db0c309f NC |
4111 | if (sym->section == NULL) |
4112 | return TRUE; | |
4113 | ||
c6d8cab4 L |
4114 | type_ptr = elf_symbol_from (abfd, sym); |
4115 | return ((type_ptr != NULL | |
4116 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4117 | && bfd_is_abs_section (sym->section)) | |
4118 | || !(sym->section->owner == abfd | |
db0c309f NC |
4119 | || (sym->section->output_section != NULL |
4120 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4121 | && sym->section->output_offset == 0) |
4122 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4123 | } |
4124 | ||
2633a79c AM |
4125 | /* Map symbol from it's internal number to the external number, moving |
4126 | all local symbols to be at the head of the list. */ | |
4127 | ||
b34976b6 | 4128 | static bfd_boolean |
12bd6957 | 4129 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4130 | { |
dc810e39 | 4131 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4132 | asymbol **syms = bfd_get_outsymbols (abfd); |
4133 | asymbol **sect_syms; | |
dc810e39 AM |
4134 | unsigned int num_locals = 0; |
4135 | unsigned int num_globals = 0; | |
4136 | unsigned int num_locals2 = 0; | |
4137 | unsigned int num_globals2 = 0; | |
7292b3ac | 4138 | unsigned int max_index = 0; |
dc810e39 | 4139 | unsigned int idx; |
252b5132 RH |
4140 | asection *asect; |
4141 | asymbol **new_syms; | |
446f7ed5 | 4142 | size_t amt; |
252b5132 RH |
4143 | |
4144 | #ifdef DEBUG | |
4145 | fprintf (stderr, "elf_map_symbols\n"); | |
4146 | fflush (stderr); | |
4147 | #endif | |
4148 | ||
252b5132 RH |
4149 | for (asect = abfd->sections; asect; asect = asect->next) |
4150 | { | |
4151 | if (max_index < asect->index) | |
4152 | max_index = asect->index; | |
4153 | } | |
4154 | ||
4155 | max_index++; | |
446f7ed5 AM |
4156 | amt = max_index * sizeof (asymbol *); |
4157 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 | 4158 | if (sect_syms == NULL) |
b34976b6 | 4159 | return FALSE; |
252b5132 | 4160 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4161 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4162 | |
079e9a2f AM |
4163 | /* Init sect_syms entries for any section symbols we have already |
4164 | decided to output. */ | |
252b5132 RH |
4165 | for (idx = 0; idx < symcount; idx++) |
4166 | { | |
dc810e39 | 4167 | asymbol *sym = syms[idx]; |
c044fabd | 4168 | |
252b5132 | 4169 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4170 | && sym->value == 0 |
2633a79c AM |
4171 | && !ignore_section_sym (abfd, sym) |
4172 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4173 | { |
5372391b | 4174 | asection *sec = sym->section; |
252b5132 | 4175 | |
5372391b AM |
4176 | if (sec->owner != abfd) |
4177 | sec = sec->output_section; | |
252b5132 | 4178 | |
5372391b | 4179 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4180 | } |
4181 | } | |
4182 | ||
252b5132 RH |
4183 | /* Classify all of the symbols. */ |
4184 | for (idx = 0; idx < symcount; idx++) | |
4185 | { | |
2633a79c | 4186 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4187 | num_globals++; |
2633a79c AM |
4188 | else if (!ignore_section_sym (abfd, syms[idx])) |
4189 | num_locals++; | |
252b5132 | 4190 | } |
079e9a2f | 4191 | |
5372391b | 4192 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4193 | sections will already have a section symbol in outsymbols, but |
4194 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4195 | at least in that case. */ | |
252b5132 RH |
4196 | for (asect = abfd->sections; asect; asect = asect->next) |
4197 | { | |
079e9a2f | 4198 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4199 | { |
079e9a2f | 4200 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4201 | num_locals++; |
4202 | else | |
4203 | num_globals++; | |
252b5132 RH |
4204 | } |
4205 | } | |
4206 | ||
4207 | /* Now sort the symbols so the local symbols are first. */ | |
446f7ed5 AM |
4208 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
4209 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 | 4210 | if (new_syms == NULL) |
b34976b6 | 4211 | return FALSE; |
252b5132 RH |
4212 | |
4213 | for (idx = 0; idx < symcount; idx++) | |
4214 | { | |
4215 | asymbol *sym = syms[idx]; | |
dc810e39 | 4216 | unsigned int i; |
252b5132 | 4217 | |
2633a79c AM |
4218 | if (sym_is_global (abfd, sym)) |
4219 | i = num_locals + num_globals2++; | |
4220 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4221 | i = num_locals2++; |
4222 | else | |
2633a79c | 4223 | continue; |
252b5132 RH |
4224 | new_syms[i] = sym; |
4225 | sym->udata.i = i + 1; | |
4226 | } | |
4227 | for (asect = abfd->sections; asect; asect = asect->next) | |
4228 | { | |
079e9a2f | 4229 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4230 | { |
079e9a2f | 4231 | asymbol *sym = asect->symbol; |
dc810e39 | 4232 | unsigned int i; |
252b5132 | 4233 | |
079e9a2f | 4234 | sect_syms[asect->index] = sym; |
252b5132 RH |
4235 | if (!sym_is_global (abfd, sym)) |
4236 | i = num_locals2++; | |
4237 | else | |
4238 | i = num_locals + num_globals2++; | |
4239 | new_syms[i] = sym; | |
4240 | sym->udata.i = i + 1; | |
4241 | } | |
4242 | } | |
4243 | ||
4244 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4245 | ||
12bd6957 | 4246 | *pnum_locals = num_locals; |
b34976b6 | 4247 | return TRUE; |
252b5132 RH |
4248 | } |
4249 | ||
4250 | /* Align to the maximum file alignment that could be required for any | |
4251 | ELF data structure. */ | |
4252 | ||
268b6b39 | 4253 | static inline file_ptr |
217aa764 | 4254 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4255 | { |
4256 | return (off + align - 1) & ~(align - 1); | |
4257 | } | |
4258 | ||
4259 | /* Assign a file position to a section, optionally aligning to the | |
4260 | required section alignment. */ | |
4261 | ||
217aa764 AM |
4262 | file_ptr |
4263 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4264 | file_ptr offset, | |
4265 | bfd_boolean align) | |
252b5132 | 4266 | { |
72de5009 AM |
4267 | if (align && i_shdrp->sh_addralign > 1) |
4268 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4269 | i_shdrp->sh_offset = offset; |
4270 | if (i_shdrp->bfd_section != NULL) | |
4271 | i_shdrp->bfd_section->filepos = offset; | |
4272 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4273 | offset += i_shdrp->sh_size; | |
4274 | return offset; | |
4275 | } | |
4276 | ||
4277 | /* Compute the file positions we are going to put the sections at, and | |
4278 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4279 | is not NULL, this is being called by the ELF backend linker. */ | |
4280 | ||
b34976b6 | 4281 | bfd_boolean |
217aa764 AM |
4282 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4283 | struct bfd_link_info *link_info) | |
252b5132 | 4284 | { |
9c5bfbb7 | 4285 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4286 | struct fake_section_arg fsargs; |
b34976b6 | 4287 | bfd_boolean failed; |
ef10c3ac | 4288 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4289 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4290 | bfd_boolean need_symtab; |
252b5132 RH |
4291 | |
4292 | if (abfd->output_has_begun) | |
b34976b6 | 4293 | return TRUE; |
252b5132 RH |
4294 | |
4295 | /* Do any elf backend specific processing first. */ | |
4296 | if (bed->elf_backend_begin_write_processing) | |
4297 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4298 | ||
ed7e9d0b | 4299 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
b34976b6 | 4300 | return FALSE; |
252b5132 | 4301 | |
d4730f92 BS |
4302 | fsargs.failed = FALSE; |
4303 | fsargs.link_info = link_info; | |
4304 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4305 | if (fsargs.failed) | |
b34976b6 | 4306 | return FALSE; |
252b5132 | 4307 | |
da9f89d4 | 4308 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4309 | return FALSE; |
252b5132 RH |
4310 | |
4311 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4312 | need_symtab = (link_info == NULL |
4313 | && (bfd_get_symcount (abfd) > 0 | |
4314 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4315 | == HAS_RELOC))); | |
4316 | if (need_symtab) | |
252b5132 RH |
4317 | { |
4318 | /* Non-zero if doing a relocatable link. */ | |
4319 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4320 | ||
4321 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4322 | return FALSE; |
252b5132 RH |
4323 | } |
4324 | ||
d4730f92 | 4325 | failed = FALSE; |
1126897b | 4326 | if (link_info == NULL) |
dbb410c3 | 4327 | { |
1126897b | 4328 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4329 | if (failed) |
b34976b6 | 4330 | return FALSE; |
dbb410c3 AM |
4331 | } |
4332 | ||
252b5132 | 4333 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4334 | /* sh_name was set in init_file_header. */ |
252b5132 | 4335 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4336 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4337 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4338 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4339 | shstrtab_hdr->sh_entsize = 0; |
4340 | shstrtab_hdr->sh_link = 0; | |
4341 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4342 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4343 | shstrtab_hdr->sh_addralign = 1; |
4344 | ||
c84fca4d | 4345 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4346 | return FALSE; |
252b5132 | 4347 | |
3516e984 | 4348 | if (need_symtab) |
252b5132 RH |
4349 | { |
4350 | file_ptr off; | |
4351 | Elf_Internal_Shdr *hdr; | |
4352 | ||
12bd6957 | 4353 | off = elf_next_file_pos (abfd); |
252b5132 | 4354 | |
6a40cf0c | 4355 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4356 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4357 | |
6a40cf0c NC |
4358 | if (elf_symtab_shndx_list (abfd) != NULL) |
4359 | { | |
4360 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4361 | if (hdr->sh_size != 0) | |
4362 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4363 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4364 | } | |
9ad5cbcf | 4365 | |
252b5132 | 4366 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4367 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4368 | |
12bd6957 | 4369 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4370 | |
4371 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4372 | out. */ |
252b5132 | 4373 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4374 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4375 | return FALSE; |
ef10c3ac | 4376 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4377 | } |
4378 | ||
b34976b6 | 4379 | abfd->output_has_begun = TRUE; |
252b5132 | 4380 | |
b34976b6 | 4381 | return TRUE; |
252b5132 RH |
4382 | } |
4383 | ||
8ded5a0f AM |
4384 | /* Make an initial estimate of the size of the program header. If we |
4385 | get the number wrong here, we'll redo section placement. */ | |
4386 | ||
4387 | static bfd_size_type | |
4388 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4389 | { | |
4390 | size_t segs; | |
4391 | asection *s; | |
2b05f1b7 | 4392 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4393 | |
4394 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4395 | and one for data. */ | |
4396 | segs = 2; | |
4397 | ||
4398 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4399 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4400 | { |
4401 | /* If we have a loadable interpreter section, we need a | |
4402 | PT_INTERP segment. In this case, assume we also need a | |
4403 | PT_PHDR segment, although that may not be true for all | |
4404 | targets. */ | |
e9a38e0f | 4405 | segs += 2; |
8ded5a0f AM |
4406 | } |
4407 | ||
4408 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4409 | { | |
4410 | /* We need a PT_DYNAMIC segment. */ | |
4411 | ++segs; | |
f210dcff | 4412 | } |
08a40648 | 4413 | |
ceae84aa | 4414 | if (info != NULL && info->relro) |
f210dcff L |
4415 | { |
4416 | /* We need a PT_GNU_RELRO segment. */ | |
4417 | ++segs; | |
8ded5a0f AM |
4418 | } |
4419 | ||
12bd6957 | 4420 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4421 | { |
4422 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4423 | ++segs; | |
4424 | } | |
4425 | ||
12bd6957 | 4426 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4427 | { |
2b05f1b7 L |
4428 | /* We need a PT_GNU_STACK segment. */ |
4429 | ++segs; | |
4430 | } | |
94b11780 | 4431 | |
0a59decb L |
4432 | s = bfd_get_section_by_name (abfd, |
4433 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4434 | if (s != NULL && s->size != 0) | |
4435 | { | |
4436 | /* We need a PT_GNU_PROPERTY segment. */ | |
4437 | ++segs; | |
4438 | } | |
4439 | ||
2b05f1b7 L |
4440 | for (s = abfd->sections; s != NULL; s = s->next) |
4441 | { | |
8ded5a0f | 4442 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4443 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4444 | { |
23e463ed | 4445 | unsigned int alignment_power; |
8ded5a0f AM |
4446 | /* We need a PT_NOTE segment. */ |
4447 | ++segs; | |
23e463ed L |
4448 | /* Try to create just one PT_NOTE segment for all adjacent |
4449 | loadable SHT_NOTE sections. gABI requires that within a | |
4450 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4451 | each note should have the same alignment. So we check | |
4452 | whether the sections are correctly aligned. */ | |
4453 | alignment_power = s->alignment_power; | |
4454 | while (s->next != NULL | |
4455 | && s->next->alignment_power == alignment_power | |
4456 | && (s->next->flags & SEC_LOAD) != 0 | |
4457 | && elf_section_type (s->next) == SHT_NOTE) | |
4458 | s = s->next; | |
8ded5a0f AM |
4459 | } |
4460 | } | |
4461 | ||
4462 | for (s = abfd->sections; s != NULL; s = s->next) | |
4463 | { | |
4464 | if (s->flags & SEC_THREAD_LOCAL) | |
4465 | { | |
4466 | /* We need a PT_TLS segment. */ | |
4467 | ++segs; | |
4468 | break; | |
4469 | } | |
4470 | } | |
4471 | ||
2b05f1b7 | 4472 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4473 | |
df3a023b AM |
4474 | if ((abfd->flags & D_PAGED) != 0 |
4475 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4476 | { | |
4477 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4478 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4479 | for (s = abfd->sections; s != NULL; s = s->next) | |
4480 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4481 | { | |
4482 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4483 | { | |
4484 | _bfd_error_handler | |
4485 | /* xgettext:c-format */ | |
4486 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4487 | "sh_info field: %d"), | |
4488 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4489 | continue; | |
4490 | } | |
4491 | /* Align mbind section to page size. */ | |
4492 | if (s->alignment_power < page_align_power) | |
4493 | s->alignment_power = page_align_power; | |
4494 | segs ++; | |
4495 | } | |
4496 | } | |
4497 | ||
4498 | /* Let the backend count up any program headers it might need. */ | |
4499 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4500 | { |
4501 | int a; | |
4502 | ||
4503 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4504 | if (a == -1) | |
4505 | abort (); | |
4506 | segs += a; | |
4507 | } | |
4508 | ||
4509 | return segs * bed->s->sizeof_phdr; | |
4510 | } | |
4511 | ||
2ea37f1c NC |
4512 | /* Find the segment that contains the output_section of section. */ |
4513 | ||
4514 | Elf_Internal_Phdr * | |
4515 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4516 | { | |
4517 | struct elf_segment_map *m; | |
4518 | Elf_Internal_Phdr *p; | |
4519 | ||
12bd6957 | 4520 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4521 | m != NULL; |
4522 | m = m->next, p++) | |
4523 | { | |
4524 | int i; | |
4525 | ||
4526 | for (i = m->count - 1; i >= 0; i--) | |
4527 | if (m->sections[i] == section) | |
4528 | return p; | |
4529 | } | |
4530 | ||
4531 | return NULL; | |
4532 | } | |
4533 | ||
252b5132 RH |
4534 | /* Create a mapping from a set of sections to a program segment. */ |
4535 | ||
217aa764 AM |
4536 | static struct elf_segment_map * |
4537 | make_mapping (bfd *abfd, | |
4538 | asection **sections, | |
4539 | unsigned int from, | |
4540 | unsigned int to, | |
4541 | bfd_boolean phdr) | |
252b5132 RH |
4542 | { |
4543 | struct elf_segment_map *m; | |
4544 | unsigned int i; | |
4545 | asection **hdrpp; | |
986f0783 | 4546 | size_t amt; |
252b5132 | 4547 | |
00bee008 AM |
4548 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4549 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4550 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4551 | if (m == NULL) |
4552 | return NULL; | |
4553 | m->next = NULL; | |
4554 | m->p_type = PT_LOAD; | |
4555 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4556 | m->sections[i - from] = *hdrpp; | |
4557 | m->count = to - from; | |
4558 | ||
4559 | if (from == 0 && phdr) | |
4560 | { | |
4561 | /* Include the headers in the first PT_LOAD segment. */ | |
4562 | m->includes_filehdr = 1; | |
4563 | m->includes_phdrs = 1; | |
4564 | } | |
4565 | ||
4566 | return m; | |
4567 | } | |
4568 | ||
229fcec5 MM |
4569 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4570 | on failure. */ | |
4571 | ||
4572 | struct elf_segment_map * | |
4573 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4574 | { | |
4575 | struct elf_segment_map *m; | |
4576 | ||
a50b1753 | 4577 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4578 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4579 | if (m == NULL) |
4580 | return NULL; | |
4581 | m->next = NULL; | |
4582 | m->p_type = PT_DYNAMIC; | |
4583 | m->count = 1; | |
4584 | m->sections[0] = dynsec; | |
08a40648 | 4585 | |
229fcec5 MM |
4586 | return m; |
4587 | } | |
4588 | ||
8ded5a0f | 4589 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4590 | |
b34976b6 | 4591 | static bfd_boolean |
3dea8fca AM |
4592 | elf_modify_segment_map (bfd *abfd, |
4593 | struct bfd_link_info *info, | |
4594 | bfd_boolean remove_empty_load) | |
252b5132 | 4595 | { |
252e386e | 4596 | struct elf_segment_map **m; |
8ded5a0f | 4597 | const struct elf_backend_data *bed; |
252b5132 | 4598 | |
8ded5a0f AM |
4599 | /* The placement algorithm assumes that non allocated sections are |
4600 | not in PT_LOAD segments. We ensure this here by removing such | |
4601 | sections from the segment map. We also remove excluded | |
252e386e AM |
4602 | sections. Finally, any PT_LOAD segment without sections is |
4603 | removed. */ | |
12bd6957 | 4604 | m = &elf_seg_map (abfd); |
252e386e | 4605 | while (*m) |
8ded5a0f AM |
4606 | { |
4607 | unsigned int i, new_count; | |
252b5132 | 4608 | |
252e386e | 4609 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4610 | { |
252e386e AM |
4611 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4612 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4613 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4614 | { |
252e386e AM |
4615 | (*m)->sections[new_count] = (*m)->sections[i]; |
4616 | new_count++; | |
8ded5a0f AM |
4617 | } |
4618 | } | |
252e386e | 4619 | (*m)->count = new_count; |
252b5132 | 4620 | |
1a9ccd70 NC |
4621 | if (remove_empty_load |
4622 | && (*m)->p_type == PT_LOAD | |
4623 | && (*m)->count == 0 | |
4624 | && !(*m)->includes_phdrs) | |
252e386e AM |
4625 | *m = (*m)->next; |
4626 | else | |
4627 | m = &(*m)->next; | |
8ded5a0f | 4628 | } |
252b5132 | 4629 | |
8ded5a0f AM |
4630 | bed = get_elf_backend_data (abfd); |
4631 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4632 | { |
252e386e | 4633 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4634 | return FALSE; |
252b5132 | 4635 | } |
252b5132 | 4636 | |
8ded5a0f AM |
4637 | return TRUE; |
4638 | } | |
252b5132 | 4639 | |
dbc88fc1 AM |
4640 | #define IS_TBSS(s) \ |
4641 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4642 | ||
8ded5a0f | 4643 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4644 | |
8ded5a0f AM |
4645 | bfd_boolean |
4646 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4647 | { | |
4648 | unsigned int count; | |
4649 | struct elf_segment_map *m; | |
4650 | asection **sections = NULL; | |
4651 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4652 | bfd_boolean no_user_phdrs; |
252b5132 | 4653 | |
12bd6957 | 4654 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4655 | |
4656 | if (info != NULL) | |
4657 | info->user_phdrs = !no_user_phdrs; | |
4658 | ||
3dea8fca | 4659 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4660 | { |
8ded5a0f AM |
4661 | asection *s; |
4662 | unsigned int i; | |
4663 | struct elf_segment_map *mfirst; | |
4664 | struct elf_segment_map **pm; | |
4665 | asection *last_hdr; | |
4666 | bfd_vma last_size; | |
00bee008 | 4667 | unsigned int hdr_index; |
8ded5a0f AM |
4668 | bfd_vma maxpagesize; |
4669 | asection **hdrpp; | |
64029e93 | 4670 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4671 | bfd_boolean writable; |
2888249f | 4672 | bfd_boolean executable; |
446f7ed5 | 4673 | unsigned int tls_count = 0; |
8ded5a0f | 4674 | asection *first_tls = NULL; |
a91e1603 | 4675 | asection *first_mbind = NULL; |
8ded5a0f | 4676 | asection *dynsec, *eh_frame_hdr; |
446f7ed5 | 4677 | size_t amt; |
8d06853e | 4678 | bfd_vma addr_mask, wrap_to = 0; |
64029e93 | 4679 | bfd_size_type phdr_size; |
252b5132 | 4680 | |
8ded5a0f | 4681 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4682 | |
446f7ed5 AM |
4683 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
4684 | sections = (asection **) bfd_malloc (amt); | |
8ded5a0f | 4685 | if (sections == NULL) |
252b5132 | 4686 | goto error_return; |
252b5132 | 4687 | |
8d06853e AM |
4688 | /* Calculate top address, avoiding undefined behaviour of shift |
4689 | left operator when shift count is equal to size of type | |
4690 | being shifted. */ | |
4691 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4692 | addr_mask = (addr_mask << 1) + 1; | |
4693 | ||
8ded5a0f AM |
4694 | i = 0; |
4695 | for (s = abfd->sections; s != NULL; s = s->next) | |
4696 | { | |
4697 | if ((s->flags & SEC_ALLOC) != 0) | |
4698 | { | |
48db3297 AM |
4699 | /* target_index is unused until bfd_elf_final_link |
4700 | starts output of section symbols. Use it to make | |
4701 | qsort stable. */ | |
4702 | s->target_index = i; | |
8ded5a0f AM |
4703 | sections[i] = s; |
4704 | ++i; | |
8d06853e AM |
4705 | /* A wrapping section potentially clashes with header. */ |
4706 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4707 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4708 | } |
4709 | } | |
4710 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4711 | count = i; | |
252b5132 | 4712 | |
8ded5a0f | 4713 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4714 | |
64029e93 AM |
4715 | phdr_size = elf_program_header_size (abfd); |
4716 | if (phdr_size == (bfd_size_type) -1) | |
4717 | phdr_size = get_program_header_size (abfd, info); | |
4718 | phdr_size += bed->s->sizeof_ehdr; | |
4719 | maxpagesize = bed->maxpagesize; | |
4720 | if (maxpagesize == 0) | |
4721 | maxpagesize = 1; | |
4722 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4723 | if (count != 0 | |
4724 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4725 | >= (phdr_size & (maxpagesize - 1)))) | |
4726 | /* For compatibility with old scripts that may not be using | |
4727 | SIZEOF_HEADERS, add headers when it looks like space has | |
4728 | been left for them. */ | |
4729 | phdr_in_segment = TRUE; | |
252b5132 | 4730 | |
64029e93 | 4731 | /* Build the mapping. */ |
8ded5a0f AM |
4732 | mfirst = NULL; |
4733 | pm = &mfirst; | |
252b5132 | 4734 | |
8ded5a0f AM |
4735 | /* If we have a .interp section, then create a PT_PHDR segment for |
4736 | the program headers and a PT_INTERP segment for the .interp | |
4737 | section. */ | |
4738 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4739 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4740 | { |
4741 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4742 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4743 | if (m == NULL) |
4744 | goto error_return; | |
4745 | m->next = NULL; | |
4746 | m->p_type = PT_PHDR; | |
f882209d | 4747 | m->p_flags = PF_R; |
8ded5a0f AM |
4748 | m->p_flags_valid = 1; |
4749 | m->includes_phdrs = 1; | |
64029e93 | 4750 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4751 | *pm = m; |
4752 | pm = &m->next; | |
252b5132 | 4753 | |
8ded5a0f | 4754 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4755 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4756 | if (m == NULL) |
4757 | goto error_return; | |
4758 | m->next = NULL; | |
4759 | m->p_type = PT_INTERP; | |
4760 | m->count = 1; | |
4761 | m->sections[0] = s; | |
4762 | ||
4763 | *pm = m; | |
4764 | pm = &m->next; | |
252b5132 | 4765 | } |
8ded5a0f AM |
4766 | |
4767 | /* Look through the sections. We put sections in the same program | |
4768 | segment when the start of the second section can be placed within | |
4769 | a few bytes of the end of the first section. */ | |
4770 | last_hdr = NULL; | |
4771 | last_size = 0; | |
00bee008 | 4772 | hdr_index = 0; |
8ded5a0f | 4773 | writable = FALSE; |
2888249f | 4774 | executable = FALSE; |
8ded5a0f AM |
4775 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4776 | if (dynsec != NULL | |
4777 | && (dynsec->flags & SEC_LOAD) == 0) | |
4778 | dynsec = NULL; | |
4779 | ||
64029e93 AM |
4780 | if ((abfd->flags & D_PAGED) == 0) |
4781 | phdr_in_segment = FALSE; | |
4782 | ||
8ded5a0f AM |
4783 | /* Deal with -Ttext or something similar such that the first section |
4784 | is not adjacent to the program headers. This is an | |
4785 | approximation, since at this point we don't know exactly how many | |
4786 | program headers we will need. */ | |
64029e93 | 4787 | if (phdr_in_segment && count > 0) |
252b5132 | 4788 | { |
64029e93 AM |
4789 | bfd_vma phdr_lma; |
4790 | bfd_boolean separate_phdr = FALSE; | |
4791 | ||
4792 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4793 | if (info != NULL | |
4794 | && info->separate_code | |
4795 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4796 | { |
64029e93 AM |
4797 | /* If data sections should be separate from code and |
4798 | thus not executable, and the first section is | |
4799 | executable then put the file and program headers in | |
4800 | their own PT_LOAD. */ | |
4801 | separate_phdr = TRUE; | |
4802 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4803 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4804 | { | |
4805 | /* The file and program headers are currently on the | |
4806 | same page as the first section. Put them on the | |
4807 | previous page if we can. */ | |
4808 | if (phdr_lma >= maxpagesize) | |
4809 | phdr_lma -= maxpagesize; | |
4810 | else | |
4811 | separate_phdr = FALSE; | |
4812 | } | |
4813 | } | |
4814 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4815 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4816 | /* If file and program headers would be placed at the end | |
4817 | of memory then it's probably better to omit them. */ | |
4818 | phdr_in_segment = FALSE; | |
4819 | else if (phdr_lma < wrap_to) | |
4820 | /* If a section wraps around to where we'll be placing | |
4821 | file and program headers, then the headers will be | |
4822 | overwritten. */ | |
4823 | phdr_in_segment = FALSE; | |
4824 | else if (separate_phdr) | |
4825 | { | |
4826 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4827 | if (m == NULL) | |
4828 | goto error_return; | |
4829 | m->p_paddr = phdr_lma; | |
4830 | m->p_vaddr_offset | |
4831 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4832 | m->p_paddr_valid = 1; | |
4833 | *pm = m; | |
4834 | pm = &m->next; | |
4835 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4836 | } |
252b5132 RH |
4837 | } |
4838 | ||
8ded5a0f | 4839 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4840 | { |
8ded5a0f AM |
4841 | asection *hdr; |
4842 | bfd_boolean new_segment; | |
4843 | ||
4844 | hdr = *hdrpp; | |
4845 | ||
4846 | /* See if this section and the last one will fit in the same | |
4847 | segment. */ | |
4848 | ||
4849 | if (last_hdr == NULL) | |
4850 | { | |
4851 | /* If we don't have a segment yet, then we don't need a new | |
4852 | one (we build the last one after this loop). */ | |
4853 | new_segment = FALSE; | |
4854 | } | |
4855 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4856 | { | |
4857 | /* If this section has a different relation between the | |
4858 | virtual address and the load address, then we need a new | |
4859 | segment. */ | |
4860 | new_segment = TRUE; | |
4861 | } | |
b5599592 AM |
4862 | else if (hdr->lma < last_hdr->lma + last_size |
4863 | || last_hdr->lma + last_size < last_hdr->lma) | |
4864 | { | |
4865 | /* If this section has a load address that makes it overlap | |
4866 | the previous section, then we need a new segment. */ | |
4867 | new_segment = TRUE; | |
4868 | } | |
76cb3a89 AM |
4869 | else if ((abfd->flags & D_PAGED) != 0 |
4870 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4871 | == (hdr->lma & -maxpagesize))) | |
4872 | { | |
4873 | /* If we are demand paged then we can't map two disk | |
4874 | pages onto the same memory page. */ | |
4875 | new_segment = FALSE; | |
4876 | } | |
39948a60 NC |
4877 | /* In the next test we have to be careful when last_hdr->lma is close |
4878 | to the end of the address space. If the aligned address wraps | |
4879 | around to the start of the address space, then there are no more | |
4880 | pages left in memory and it is OK to assume that the current | |
4881 | section can be included in the current segment. */ | |
76cb3a89 AM |
4882 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4883 | + maxpagesize > last_hdr->lma) | |
4884 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4885 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4886 | { |
4887 | /* If putting this section in this segment would force us to | |
4888 | skip a page in the segment, then we need a new segment. */ | |
4889 | new_segment = TRUE; | |
4890 | } | |
4891 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4892 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4893 | { |
e5654c0f AM |
4894 | /* We don't want to put a loaded section after a |
4895 | nonloaded (ie. bss style) section in the same segment | |
4896 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4897 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4898 | new_segment = TRUE; |
4899 | } | |
4900 | else if ((abfd->flags & D_PAGED) == 0) | |
4901 | { | |
4902 | /* If the file is not demand paged, which means that we | |
4903 | don't require the sections to be correctly aligned in the | |
4904 | file, then there is no other reason for a new segment. */ | |
4905 | new_segment = FALSE; | |
4906 | } | |
2888249f L |
4907 | else if (info != NULL |
4908 | && info->separate_code | |
4909 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4910 | { | |
4911 | new_segment = TRUE; | |
4912 | } | |
8ded5a0f | 4913 | else if (! writable |
76cb3a89 | 4914 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4915 | { |
4916 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4917 | segment. */ |
8ded5a0f AM |
4918 | new_segment = TRUE; |
4919 | } | |
4920 | else | |
4921 | { | |
4922 | /* Otherwise, we can use the same segment. */ | |
4923 | new_segment = FALSE; | |
4924 | } | |
4925 | ||
2889e75b | 4926 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4927 | if (last_hdr != NULL |
4928 | && info != NULL | |
4929 | && info->callbacks->override_segment_assignment != NULL) | |
4930 | new_segment | |
4931 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4932 | last_hdr, | |
4933 | new_segment); | |
2889e75b | 4934 | |
8ded5a0f AM |
4935 | if (! new_segment) |
4936 | { | |
4937 | if ((hdr->flags & SEC_READONLY) == 0) | |
4938 | writable = TRUE; | |
2888249f L |
4939 | if ((hdr->flags & SEC_CODE) != 0) |
4940 | executable = TRUE; | |
8ded5a0f AM |
4941 | last_hdr = hdr; |
4942 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4943 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4944 | continue; |
4945 | } | |
4946 | ||
4947 | /* We need a new program segment. We must create a new program | |
00bee008 | 4948 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4949 | |
00bee008 | 4950 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4951 | if (m == NULL) |
4952 | goto error_return; | |
4953 | ||
4954 | *pm = m; | |
4955 | pm = &m->next; | |
4956 | ||
252b5132 | 4957 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4958 | writable = TRUE; |
8ded5a0f AM |
4959 | else |
4960 | writable = FALSE; | |
4961 | ||
2888249f L |
4962 | if ((hdr->flags & SEC_CODE) == 0) |
4963 | executable = FALSE; | |
4964 | else | |
4965 | executable = TRUE; | |
4966 | ||
baaff79e JJ |
4967 | last_hdr = hdr; |
4968 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4969 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
00bee008 | 4970 | hdr_index = i; |
8ded5a0f | 4971 | phdr_in_segment = FALSE; |
252b5132 RH |
4972 | } |
4973 | ||
86b2281f AM |
4974 | /* Create a final PT_LOAD program segment, but not if it's just |
4975 | for .tbss. */ | |
4976 | if (last_hdr != NULL | |
00bee008 | 4977 | && (i - hdr_index != 1 |
dbc88fc1 | 4978 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4979 | { |
00bee008 | 4980 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4981 | if (m == NULL) |
4982 | goto error_return; | |
252b5132 | 4983 | |
8ded5a0f AM |
4984 | *pm = m; |
4985 | pm = &m->next; | |
4986 | } | |
252b5132 | 4987 | |
8ded5a0f AM |
4988 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4989 | if (dynsec != NULL) | |
4990 | { | |
4991 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4992 | if (m == NULL) | |
4993 | goto error_return; | |
4994 | *pm = m; | |
4995 | pm = &m->next; | |
4996 | } | |
252b5132 | 4997 | |
23e463ed | 4998 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
4999 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
5000 | because if we link together nonloadable .note sections and | |
5001 | loadable .note sections, we will generate two .note sections | |
23e463ed | 5002 | in the output file. */ |
8ded5a0f AM |
5003 | for (s = abfd->sections; s != NULL; s = s->next) |
5004 | { | |
5005 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 5006 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 5007 | { |
1c5265b5 | 5008 | asection *s2; |
23e463ed | 5009 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5010 | |
5011 | count = 1; | |
23e463ed L |
5012 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5013 | { | |
5014 | if (s2->next->alignment_power == alignment_power | |
5015 | && (s2->next->flags & SEC_LOAD) != 0 | |
5016 | && elf_section_type (s2->next) == SHT_NOTE | |
5017 | && align_power (s2->lma + s2->size, | |
5018 | alignment_power) | |
5019 | == s2->next->lma) | |
5020 | count++; | |
5021 | else | |
5022 | break; | |
5023 | } | |
00bee008 AM |
5024 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5025 | amt += count * sizeof (asection *); | |
a50b1753 | 5026 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5027 | if (m == NULL) |
5028 | goto error_return; | |
5029 | m->next = NULL; | |
5030 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5031 | m->count = count; |
5032 | while (count > 1) | |
5033 | { | |
5034 | m->sections[m->count - count--] = s; | |
5035 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5036 | s = s->next; | |
5037 | } | |
5038 | m->sections[m->count - 1] = s; | |
5039 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5040 | *pm = m; |
5041 | pm = &m->next; | |
5042 | } | |
5043 | if (s->flags & SEC_THREAD_LOCAL) | |
5044 | { | |
5045 | if (! tls_count) | |
5046 | first_tls = s; | |
5047 | tls_count++; | |
5048 | } | |
a91e1603 L |
5049 | if (first_mbind == NULL |
5050 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5051 | first_mbind = s; | |
8ded5a0f | 5052 | } |
252b5132 | 5053 | |
8ded5a0f AM |
5054 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5055 | if (tls_count > 0) | |
5056 | { | |
00bee008 AM |
5057 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5058 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5059 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5060 | if (m == NULL) |
5061 | goto error_return; | |
5062 | m->next = NULL; | |
5063 | m->p_type = PT_TLS; | |
5064 | m->count = tls_count; | |
5065 | /* Mandated PF_R. */ | |
5066 | m->p_flags = PF_R; | |
5067 | m->p_flags_valid = 1; | |
d923cae0 | 5068 | s = first_tls; |
446f7ed5 | 5069 | for (i = 0; i < tls_count; ++i) |
8ded5a0f | 5070 | { |
d923cae0 L |
5071 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5072 | { | |
5073 | _bfd_error_handler | |
871b3ab2 | 5074 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5075 | s = first_tls; |
5076 | i = 0; | |
446f7ed5 | 5077 | while (i < tls_count) |
d923cae0 L |
5078 | { |
5079 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5080 | { | |
871b3ab2 | 5081 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5082 | i++; |
5083 | } | |
5084 | else | |
871b3ab2 | 5085 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5086 | s = s->next; |
5087 | } | |
5088 | bfd_set_error (bfd_error_bad_value); | |
5089 | goto error_return; | |
5090 | } | |
5091 | m->sections[i] = s; | |
5092 | s = s->next; | |
8ded5a0f | 5093 | } |
252b5132 | 5094 | |
8ded5a0f AM |
5095 | *pm = m; |
5096 | pm = &m->next; | |
5097 | } | |
252b5132 | 5098 | |
df3a023b AM |
5099 | if (first_mbind |
5100 | && (abfd->flags & D_PAGED) != 0 | |
5101 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5102 | for (s = first_mbind; s != NULL; s = s->next) |
5103 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5104 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5105 | { |
5106 | /* Mandated PF_R. */ | |
5107 | unsigned long p_flags = PF_R; | |
5108 | if ((s->flags & SEC_READONLY) == 0) | |
5109 | p_flags |= PF_W; | |
5110 | if ((s->flags & SEC_CODE) != 0) | |
5111 | p_flags |= PF_X; | |
5112 | ||
5113 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5114 | m = bfd_zalloc (abfd, amt); | |
5115 | if (m == NULL) | |
5116 | goto error_return; | |
5117 | m->next = NULL; | |
5118 | m->p_type = (PT_GNU_MBIND_LO | |
5119 | + elf_section_data (s)->this_hdr.sh_info); | |
5120 | m->count = 1; | |
5121 | m->p_flags_valid = 1; | |
5122 | m->sections[0] = s; | |
5123 | m->p_flags = p_flags; | |
5124 | ||
5125 | *pm = m; | |
5126 | pm = &m->next; | |
5127 | } | |
5128 | ||
0a59decb L |
5129 | s = bfd_get_section_by_name (abfd, |
5130 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5131 | if (s != NULL && s->size != 0) | |
5132 | { | |
5133 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5134 | m = bfd_zalloc (abfd, amt); | |
5135 | if (m == NULL) | |
5136 | goto error_return; | |
5137 | m->next = NULL; | |
5138 | m->p_type = PT_GNU_PROPERTY; | |
5139 | m->count = 1; | |
5140 | m->p_flags_valid = 1; | |
5141 | m->sections[0] = s; | |
5142 | m->p_flags = PF_R; | |
5143 | *pm = m; | |
5144 | pm = &m->next; | |
5145 | } | |
5146 | ||
8ded5a0f AM |
5147 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5148 | segment. */ | |
12bd6957 | 5149 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5150 | if (eh_frame_hdr != NULL |
5151 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5152 | { |
dc810e39 | 5153 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5154 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5155 | if (m == NULL) |
5156 | goto error_return; | |
5157 | m->next = NULL; | |
8ded5a0f | 5158 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5159 | m->count = 1; |
8ded5a0f | 5160 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5161 | |
5162 | *pm = m; | |
5163 | pm = &m->next; | |
5164 | } | |
13ae64f3 | 5165 | |
12bd6957 | 5166 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5167 | { |
8ded5a0f | 5168 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5169 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5170 | if (m == NULL) |
5171 | goto error_return; | |
5172 | m->next = NULL; | |
2b05f1b7 | 5173 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5174 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5175 | m->p_align = bed->stack_align; |
8ded5a0f | 5176 | m->p_flags_valid = 1; |
04c3a755 NS |
5177 | m->p_align_valid = m->p_align != 0; |
5178 | if (info->stacksize > 0) | |
5179 | { | |
5180 | m->p_size = info->stacksize; | |
5181 | m->p_size_valid = 1; | |
5182 | } | |
252b5132 | 5183 | |
8ded5a0f AM |
5184 | *pm = m; |
5185 | pm = &m->next; | |
5186 | } | |
65765700 | 5187 | |
ceae84aa | 5188 | if (info != NULL && info->relro) |
8ded5a0f | 5189 | { |
f210dcff L |
5190 | for (m = mfirst; m != NULL; m = m->next) |
5191 | { | |
3832a4d8 AM |
5192 | if (m->p_type == PT_LOAD |
5193 | && m->count != 0 | |
5194 | && m->sections[0]->vma >= info->relro_start | |
5195 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5196 | { |
3832a4d8 AM |
5197 | i = m->count; |
5198 | while (--i != (unsigned) -1) | |
5199 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5200 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5201 | break; | |
5202 | ||
43a8475c | 5203 | if (i != (unsigned) -1) |
f210dcff L |
5204 | break; |
5205 | } | |
be01b344 | 5206 | } |
f210dcff L |
5207 | |
5208 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5209 | if (m != NULL) | |
5210 | { | |
5211 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5212 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5213 | if (m == NULL) |
5214 | goto error_return; | |
5215 | m->next = NULL; | |
5216 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5217 | *pm = m; |
5218 | pm = &m->next; | |
5219 | } | |
8ded5a0f | 5220 | } |
9ee5e499 | 5221 | |
8ded5a0f | 5222 | free (sections); |
12bd6957 | 5223 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5224 | } |
5225 | ||
3dea8fca | 5226 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5227 | return FALSE; |
8c37241b | 5228 | |
12bd6957 | 5229 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5230 | ++count; |
12bd6957 | 5231 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5232 | |
b34976b6 | 5233 | return TRUE; |
252b5132 RH |
5234 | |
5235 | error_return: | |
5236 | if (sections != NULL) | |
5237 | free (sections); | |
b34976b6 | 5238 | return FALSE; |
252b5132 RH |
5239 | } |
5240 | ||
5241 | /* Sort sections by address. */ | |
5242 | ||
5243 | static int | |
217aa764 | 5244 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5245 | { |
5246 | const asection *sec1 = *(const asection **) arg1; | |
5247 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5248 | bfd_size_type size1, size2; |
252b5132 RH |
5249 | |
5250 | /* Sort by LMA first, since this is the address used to | |
5251 | place the section into a segment. */ | |
5252 | if (sec1->lma < sec2->lma) | |
5253 | return -1; | |
5254 | else if (sec1->lma > sec2->lma) | |
5255 | return 1; | |
5256 | ||
5257 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5258 | the same, and this will do nothing. */ | |
5259 | if (sec1->vma < sec2->vma) | |
5260 | return -1; | |
5261 | else if (sec1->vma > sec2->vma) | |
5262 | return 1; | |
5263 | ||
5264 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5265 | ||
07c6e936 | 5266 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5267 | |
5268 | if (TOEND (sec1)) | |
5269 | { | |
48db3297 | 5270 | if (!TOEND (sec2)) |
252b5132 RH |
5271 | return 1; |
5272 | } | |
00a7cdc5 | 5273 | else if (TOEND (sec2)) |
252b5132 RH |
5274 | return -1; |
5275 | ||
5276 | #undef TOEND | |
5277 | ||
00a7cdc5 NC |
5278 | /* Sort by size, to put zero sized sections |
5279 | before others at the same address. */ | |
252b5132 | 5280 | |
eea6121a AM |
5281 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5282 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5283 | |
5284 | if (size1 < size2) | |
252b5132 | 5285 | return -1; |
eecdbe52 | 5286 | if (size1 > size2) |
252b5132 RH |
5287 | return 1; |
5288 | ||
5289 | return sec1->target_index - sec2->target_index; | |
5290 | } | |
5291 | ||
30fe1832 AM |
5292 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5293 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5294 | ||
5295 | static int | |
5296 | elf_sort_segments (const void *arg1, const void *arg2) | |
5297 | { | |
5298 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5299 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5300 | ||
5301 | if (m1->p_type != m2->p_type) | |
5302 | { | |
5303 | if (m1->p_type == PT_NULL) | |
5304 | return 1; | |
5305 | if (m2->p_type == PT_NULL) | |
5306 | return -1; | |
5307 | return m1->p_type < m2->p_type ? -1 : 1; | |
5308 | } | |
5309 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5310 | return m1->includes_filehdr ? -1 : 1; | |
5311 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5312 | return m1->no_sort_lma ? -1 : 1; | |
5313 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5314 | { | |
5315 | bfd_vma lma1, lma2; | |
5316 | lma1 = 0; | |
5317 | if (m1->p_paddr_valid) | |
5318 | lma1 = m1->p_paddr; | |
5319 | else if (m1->count != 0) | |
5320 | lma1 = m1->sections[0]->lma + m1->p_vaddr_offset; | |
5321 | lma2 = 0; | |
5322 | if (m2->p_paddr_valid) | |
5323 | lma2 = m2->p_paddr; | |
5324 | else if (m2->count != 0) | |
5325 | lma2 = m2->sections[0]->lma + m2->p_vaddr_offset; | |
5326 | if (lma1 != lma2) | |
5327 | return lma1 < lma2 ? -1 : 1; | |
5328 | } | |
5329 | if (m1->idx != m2->idx) | |
5330 | return m1->idx < m2->idx ? -1 : 1; | |
5331 | return 0; | |
5332 | } | |
5333 | ||
340b6d91 AC |
5334 | /* Ian Lance Taylor writes: |
5335 | ||
5336 | We shouldn't be using % with a negative signed number. That's just | |
5337 | not good. We have to make sure either that the number is not | |
5338 | negative, or that the number has an unsigned type. When the types | |
5339 | are all the same size they wind up as unsigned. When file_ptr is a | |
5340 | larger signed type, the arithmetic winds up as signed long long, | |
5341 | which is wrong. | |
5342 | ||
5343 | What we're trying to say here is something like ``increase OFF by | |
5344 | the least amount that will cause it to be equal to the VMA modulo | |
5345 | the page size.'' */ | |
5346 | /* In other words, something like: | |
5347 | ||
5348 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5349 | off_offset = off % bed->maxpagesize; | |
5350 | if (vma_offset < off_offset) | |
5351 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5352 | else | |
5353 | adjustment = vma_offset - off_offset; | |
08a40648 | 5354 | |
de194d85 | 5355 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5356 | |
5357 | static file_ptr | |
5358 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5359 | { | |
dc9155b2 NC |
5360 | /* PR binutils/16199: Handle an alignment of zero. */ |
5361 | if (maxpagesize == 0) | |
5362 | maxpagesize = 1; | |
340b6d91 AC |
5363 | return ((vma - off) % maxpagesize); |
5364 | } | |
5365 | ||
6d33f217 L |
5366 | static void |
5367 | print_segment_map (const struct elf_segment_map *m) | |
5368 | { | |
5369 | unsigned int j; | |
5370 | const char *pt = get_segment_type (m->p_type); | |
5371 | char buf[32]; | |
5372 | ||
5373 | if (pt == NULL) | |
5374 | { | |
5375 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5376 | sprintf (buf, "LOPROC+%7.7x", | |
5377 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5378 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5379 | sprintf (buf, "LOOS+%7.7x", | |
5380 | (unsigned int) (m->p_type - PT_LOOS)); | |
5381 | else | |
5382 | snprintf (buf, sizeof (buf), "%8.8x", | |
5383 | (unsigned int) m->p_type); | |
5384 | pt = buf; | |
5385 | } | |
4a97a0e5 | 5386 | fflush (stdout); |
6d33f217 L |
5387 | fprintf (stderr, "%s:", pt); |
5388 | for (j = 0; j < m->count; j++) | |
5389 | fprintf (stderr, " %s", m->sections [j]->name); | |
5390 | putc ('\n',stderr); | |
4a97a0e5 | 5391 | fflush (stderr); |
6d33f217 L |
5392 | } |
5393 | ||
32812159 AM |
5394 | static bfd_boolean |
5395 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5396 | { | |
5397 | void *buf; | |
5398 | bfd_boolean ret; | |
5399 | ||
5400 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5401 | return FALSE; | |
5402 | buf = bfd_zmalloc (len); | |
5403 | if (buf == NULL) | |
5404 | return FALSE; | |
5405 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5406 | free (buf); | |
5407 | return ret; | |
5408 | } | |
5409 | ||
252b5132 RH |
5410 | /* Assign file positions to the sections based on the mapping from |
5411 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5412 | the file header. */ |
252b5132 | 5413 | |
b34976b6 | 5414 | static bfd_boolean |
f3520d2f AM |
5415 | assign_file_positions_for_load_sections (bfd *abfd, |
5416 | struct bfd_link_info *link_info) | |
252b5132 RH |
5417 | { |
5418 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5419 | struct elf_segment_map *m; |
30fe1832 | 5420 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5421 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5422 | Elf_Internal_Phdr *p; |
02bf8d82 | 5423 | file_ptr off; |
3f570048 | 5424 | bfd_size_type maxpagesize; |
30fe1832 | 5425 | unsigned int alloc, actual; |
0920dee7 | 5426 | unsigned int i, j; |
30fe1832 | 5427 | struct elf_segment_map **sorted_seg_map; |
252b5132 | 5428 | |
e36284ab | 5429 | if (link_info == NULL |
ceae84aa | 5430 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5431 | return FALSE; |
252b5132 | 5432 | |
8ded5a0f | 5433 | alloc = 0; |
12bd6957 | 5434 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5435 | m->idx = alloc++; |
252b5132 | 5436 | |
82f2dbf7 NC |
5437 | if (alloc) |
5438 | { | |
5439 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5440 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5441 | } | |
5442 | else | |
5443 | { | |
5444 | /* PR binutils/12467. */ | |
5445 | elf_elfheader (abfd)->e_phoff = 0; | |
5446 | elf_elfheader (abfd)->e_phentsize = 0; | |
5447 | } | |
d324f6d6 | 5448 | |
8ded5a0f | 5449 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5450 | |
12bd6957 | 5451 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5452 | { |
5453 | actual = alloc; | |
5454 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5455 | } | |
8ded5a0f | 5456 | else |
30fe1832 AM |
5457 | { |
5458 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5459 | BFD_ASSERT (elf_program_header_size (abfd) | |
5460 | == actual * bed->s->sizeof_phdr); | |
5461 | BFD_ASSERT (actual >= alloc); | |
5462 | } | |
252b5132 RH |
5463 | |
5464 | if (alloc == 0) | |
f3520d2f | 5465 | { |
12bd6957 | 5466 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5467 | return TRUE; |
f3520d2f | 5468 | } |
252b5132 | 5469 | |
12bd6957 | 5470 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5471 | see assign_file_positions_except_relocs, so make sure we have |
5472 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5473 | The variable alloc contains the computed need, while |
5474 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5475 | layout. |
5476 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5477 | where the layout is forced to according to a larger size in the | |
5478 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5479 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5480 | + alloc * sizeof (*sorted_seg_map))); | |
5481 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5482 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5483 | if (phdrs == NULL) |
b34976b6 | 5484 | return FALSE; |
252b5132 | 5485 | |
30fe1832 | 5486 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5487 | { |
30fe1832 | 5488 | sorted_seg_map[j] = m; |
252b5132 | 5489 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5490 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5491 | not be done to the PT_NOTE section of a corefile, which may |
5492 | contain several pseudo-sections artificially created by bfd. | |
5493 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5494 | if (m->count > 1 |
5495 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5496 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5497 | { |
5498 | for (i = 0; i < m->count; i++) | |
5499 | m->sections[i]->target_index = i; | |
5500 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5501 | elf_sort_sections); | |
5502 | } | |
30fe1832 AM |
5503 | } |
5504 | if (alloc > 1) | |
5505 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5506 | elf_sort_segments); | |
5507 | ||
5508 | maxpagesize = 1; | |
5509 | if ((abfd->flags & D_PAGED) != 0) | |
5510 | maxpagesize = bed->maxpagesize; | |
5511 | ||
5512 | /* Sections must map to file offsets past the ELF file header. */ | |
5513 | off = bed->s->sizeof_ehdr; | |
5514 | /* And if one of the PT_LOAD headers doesn't include the program | |
5515 | headers then we'll be mapping program headers in the usual | |
5516 | position after the ELF file header. */ | |
5517 | phdr_load_seg = NULL; | |
5518 | for (j = 0; j < alloc; j++) | |
5519 | { | |
5520 | m = sorted_seg_map[j]; | |
5521 | if (m->p_type != PT_LOAD) | |
5522 | break; | |
5523 | if (m->includes_phdrs) | |
5524 | { | |
5525 | phdr_load_seg = m; | |
5526 | break; | |
5527 | } | |
5528 | } | |
5529 | if (phdr_load_seg == NULL) | |
5530 | off += actual * bed->s->sizeof_phdr; | |
5531 | ||
5532 | for (j = 0; j < alloc; j++) | |
5533 | { | |
5534 | asection **secpp; | |
5535 | bfd_vma off_adjust; | |
5536 | bfd_boolean no_contents; | |
252b5132 | 5537 | |
b301b248 AM |
5538 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5539 | number of sections with contents contributing to both p_filesz | |
5540 | and p_memsz, followed by a number of sections with no contents | |
5541 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5542 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5543 | m = sorted_seg_map[j]; |
5544 | p = phdrs + m->idx; | |
252b5132 | 5545 | p->p_type = m->p_type; |
28a7f3e7 | 5546 | p->p_flags = m->p_flags; |
252b5132 | 5547 | |
3f570048 | 5548 | if (m->count == 0) |
5d695627 | 5549 | p->p_vaddr = m->p_vaddr_offset; |
3f570048 | 5550 | else |
5d695627 | 5551 | p->p_vaddr = m->sections[0]->vma + m->p_vaddr_offset; |
3f570048 AM |
5552 | |
5553 | if (m->p_paddr_valid) | |
5554 | p->p_paddr = m->p_paddr; | |
5555 | else if (m->count == 0) | |
5556 | p->p_paddr = 0; | |
5557 | else | |
5d695627 | 5558 | p->p_paddr = m->sections[0]->lma + m->p_vaddr_offset; |
3f570048 AM |
5559 | |
5560 | if (p->p_type == PT_LOAD | |
5561 | && (abfd->flags & D_PAGED) != 0) | |
5562 | { | |
5563 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5564 | the maximum page size. When copying an executable with | |
5565 | objcopy, we set m->p_align from the input file. Use this | |
5566 | value for maxpagesize rather than bed->maxpagesize, which | |
5567 | may be different. Note that we use maxpagesize for PT_TLS | |
5568 | segment alignment later in this function, so we are relying | |
5569 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5570 | segment. */ | |
5571 | if (m->p_align_valid) | |
5572 | maxpagesize = m->p_align; | |
5573 | ||
5574 | p->p_align = maxpagesize; | |
5575 | } | |
3271a814 NS |
5576 | else if (m->p_align_valid) |
5577 | p->p_align = m->p_align; | |
e970b90a DJ |
5578 | else if (m->count == 0) |
5579 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5580 | |
5581 | if (m == phdr_load_seg) | |
5582 | { | |
5583 | if (!m->includes_filehdr) | |
5584 | p->p_offset = off; | |
5585 | off += actual * bed->s->sizeof_phdr; | |
5586 | } | |
3f570048 | 5587 | |
bf988460 AM |
5588 | no_contents = FALSE; |
5589 | off_adjust = 0; | |
252b5132 | 5590 | if (p->p_type == PT_LOAD |
b301b248 | 5591 | && m->count > 0) |
252b5132 | 5592 | { |
b301b248 | 5593 | bfd_size_type align; |
a49e53ed | 5594 | unsigned int align_power = 0; |
b301b248 | 5595 | |
3271a814 NS |
5596 | if (m->p_align_valid) |
5597 | align = p->p_align; | |
5598 | else | |
252b5132 | 5599 | { |
3271a814 NS |
5600 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5601 | { | |
5602 | unsigned int secalign; | |
08a40648 | 5603 | |
fd361982 | 5604 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5605 | if (secalign > align_power) |
5606 | align_power = secalign; | |
5607 | } | |
5608 | align = (bfd_size_type) 1 << align_power; | |
5609 | if (align < maxpagesize) | |
5610 | align = maxpagesize; | |
b301b248 | 5611 | } |
252b5132 | 5612 | |
02bf8d82 AM |
5613 | for (i = 0; i < m->count; i++) |
5614 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5615 | /* If we aren't making room for this section, then | |
5616 | it must be SHT_NOBITS regardless of what we've | |
5617 | set via struct bfd_elf_special_section. */ | |
5618 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5619 | ||
bf988460 | 5620 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5621 | sections. */ |
5622 | no_contents = TRUE; | |
5623 | for (i = 0; i < m->count; i++) | |
5624 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5625 | { | |
5626 | no_contents = FALSE; | |
5627 | break; | |
5628 | } | |
bf988460 | 5629 | |
85cfcbfb | 5630 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5631 | |
5632 | /* Broken hardware and/or kernel require that files do not | |
5633 | map the same page with different permissions on some hppa | |
5634 | processors. */ | |
30fe1832 AM |
5635 | if (j != 0 |
5636 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5637 | && bed->no_page_alias |
5638 | && (off & (maxpagesize - 1)) != 0 | |
5639 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5640 | off_adjust += maxpagesize; | |
bf988460 AM |
5641 | off += off_adjust; |
5642 | if (no_contents) | |
5643 | { | |
5644 | /* We shouldn't need to align the segment on disk since | |
5645 | the segment doesn't need file space, but the gABI | |
5646 | arguably requires the alignment and glibc ld.so | |
5647 | checks it. So to comply with the alignment | |
5648 | requirement but not waste file space, we adjust | |
5649 | p_offset for just this segment. (OFF_ADJUST is | |
5650 | subtracted from OFF later.) This may put p_offset | |
5651 | past the end of file, but that shouldn't matter. */ | |
5652 | } | |
5653 | else | |
5654 | off_adjust = 0; | |
252b5132 | 5655 | } |
b1a6d0b1 NC |
5656 | /* Make sure the .dynamic section is the first section in the |
5657 | PT_DYNAMIC segment. */ | |
5658 | else if (p->p_type == PT_DYNAMIC | |
5659 | && m->count > 1 | |
5660 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5661 | { | |
5662 | _bfd_error_handler | |
871b3ab2 | 5663 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5664 | " is not the .dynamic section"), |
b301b248 | 5665 | abfd); |
b1a6d0b1 NC |
5666 | bfd_set_error (bfd_error_bad_value); |
5667 | return FALSE; | |
5668 | } | |
3f001e84 JK |
5669 | /* Set the note section type to SHT_NOTE. */ |
5670 | else if (p->p_type == PT_NOTE) | |
5671 | for (i = 0; i < m->count; i++) | |
5672 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5673 | |
252b5132 RH |
5674 | if (m->includes_filehdr) |
5675 | { | |
bf988460 | 5676 | if (!m->p_flags_valid) |
252b5132 | 5677 | p->p_flags |= PF_R; |
252b5132 RH |
5678 | p->p_filesz = bed->s->sizeof_ehdr; |
5679 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5680 | if (p->p_type == PT_LOAD) |
252b5132 | 5681 | { |
30fe1832 | 5682 | if (m->count > 0) |
252b5132 | 5683 | { |
30fe1832 AM |
5684 | if (p->p_vaddr < (bfd_vma) off |
5685 | || (!m->p_paddr_valid | |
5686 | && p->p_paddr < (bfd_vma) off)) | |
5687 | { | |
5688 | _bfd_error_handler | |
5689 | (_("%pB: not enough room for program headers," | |
5690 | " try linking with -N"), | |
5691 | abfd); | |
5692 | bfd_set_error (bfd_error_bad_value); | |
5693 | return FALSE; | |
5694 | } | |
5695 | p->p_vaddr -= off; | |
5696 | if (!m->p_paddr_valid) | |
5697 | p->p_paddr -= off; | |
252b5132 | 5698 | } |
30fe1832 AM |
5699 | } |
5700 | else if (sorted_seg_map[0]->includes_filehdr) | |
5701 | { | |
5702 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5703 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5704 | if (!m->p_paddr_valid) |
30fe1832 | 5705 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5706 | } |
252b5132 RH |
5707 | } |
5708 | ||
5709 | if (m->includes_phdrs) | |
5710 | { | |
bf988460 | 5711 | if (!m->p_flags_valid) |
252b5132 | 5712 | p->p_flags |= PF_R; |
30fe1832 AM |
5713 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5714 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5715 | if (!m->includes_filehdr) |
252b5132 | 5716 | { |
30fe1832 | 5717 | if (p->p_type == PT_LOAD) |
252b5132 | 5718 | { |
30fe1832 AM |
5719 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5720 | if (m->count > 0) | |
5721 | { | |
5722 | p->p_vaddr -= off - p->p_offset; | |
5723 | if (!m->p_paddr_valid) | |
5724 | p->p_paddr -= off - p->p_offset; | |
5725 | } | |
5726 | } | |
5727 | else if (phdr_load_seg != NULL) | |
5728 | { | |
5729 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
5730 | bfd_vma phdr_off = 0; | |
5731 | if (phdr_load_seg->includes_filehdr) | |
5732 | phdr_off = bed->s->sizeof_ehdr; | |
5733 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5734 | if (!m->p_paddr_valid) |
30fe1832 AM |
5735 | p->p_paddr = phdr->p_paddr + phdr_off; |
5736 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5737 | } |
30fe1832 AM |
5738 | else |
5739 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5740 | } |
252b5132 RH |
5741 | } |
5742 | ||
5743 | if (p->p_type == PT_LOAD | |
5744 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5745 | { | |
bf988460 | 5746 | if (!m->includes_filehdr && !m->includes_phdrs) |
0bc3450e AM |
5747 | { |
5748 | p->p_offset = off; | |
5749 | if (no_contents) | |
67641dd3 AM |
5750 | { |
5751 | /* Put meaningless p_offset for PT_LOAD segments | |
5752 | without file contents somewhere within the first | |
5753 | page, in an attempt to not point past EOF. */ | |
5754 | bfd_size_type align = maxpagesize; | |
5755 | if (align < p->p_align) | |
5756 | align = p->p_align; | |
5757 | if (align < 1) | |
5758 | align = 1; | |
5759 | p->p_offset = off % align; | |
5760 | } | |
0bc3450e | 5761 | } |
252b5132 RH |
5762 | else |
5763 | { | |
5764 | file_ptr adjust; | |
5765 | ||
5766 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5767 | if (!no_contents) |
5768 | p->p_filesz += adjust; | |
252b5132 RH |
5769 | p->p_memsz += adjust; |
5770 | } | |
5771 | } | |
5772 | ||
1ea63fd2 AM |
5773 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5774 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5775 | core files, for sections in PT_NOTE segments. | |
5776 | assign_file_positions_for_non_load_sections will set filepos | |
5777 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5778 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5779 | { | |
5780 | asection *sec; | |
252b5132 | 5781 | bfd_size_type align; |
627b32bc | 5782 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5783 | |
5784 | sec = *secpp; | |
02bf8d82 | 5785 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5786 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5787 | |
88967714 AM |
5788 | if ((p->p_type == PT_LOAD |
5789 | || p->p_type == PT_TLS) | |
5790 | && (this_hdr->sh_type != SHT_NOBITS | |
5791 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5792 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5793 | || p->p_type == PT_TLS)))) | |
252b5132 | 5794 | { |
b5599592 AM |
5795 | bfd_vma p_start = p->p_paddr; |
5796 | bfd_vma p_end = p_start + p->p_memsz; | |
5797 | bfd_vma s_start = sec->lma; | |
5798 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5799 | |
a2d1e028 L |
5800 | if (adjust != 0 |
5801 | && (s_start < p_end | |
5802 | || p_end < p_start)) | |
252b5132 | 5803 | { |
4eca0228 | 5804 | _bfd_error_handler |
695344c0 | 5805 | /* xgettext:c-format */ |
2dcf00ce AM |
5806 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5807 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5808 | adjust = 0; |
b5599592 | 5809 | sec->lma = p_end; |
1cfb7d1e | 5810 | } |
3ac9b6c9 | 5811 | p->p_memsz += adjust; |
1cfb7d1e | 5812 | |
88967714 AM |
5813 | if (this_hdr->sh_type != SHT_NOBITS) |
5814 | { | |
30fe1832 | 5815 | if (p->p_type == PT_LOAD) |
32812159 | 5816 | { |
30fe1832 AM |
5817 | if (p->p_filesz + adjust < p->p_memsz) |
5818 | { | |
5819 | /* We have a PROGBITS section following NOBITS ones. | |
5820 | Allocate file space for the NOBITS section(s) and | |
5821 | zero it. */ | |
5822 | adjust = p->p_memsz - p->p_filesz; | |
5823 | if (!write_zeros (abfd, off, adjust)) | |
5824 | return FALSE; | |
5825 | } | |
5826 | off += adjust; | |
32812159 | 5827 | } |
88967714 | 5828 | p->p_filesz += adjust; |
252b5132 | 5829 | } |
252b5132 RH |
5830 | } |
5831 | ||
5832 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5833 | { | |
b301b248 AM |
5834 | /* The section at i == 0 is the one that actually contains |
5835 | everything. */ | |
4a938328 MS |
5836 | if (i == 0) |
5837 | { | |
627b32bc | 5838 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5839 | off += this_hdr->sh_size; |
5840 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5841 | p->p_memsz = 0; |
5842 | p->p_align = 1; | |
252b5132 | 5843 | } |
4a938328 | 5844 | else |
252b5132 | 5845 | { |
b301b248 | 5846 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5847 | sec->filepos = 0; |
eea6121a | 5848 | sec->size = 0; |
b301b248 AM |
5849 | sec->flags = 0; |
5850 | continue; | |
252b5132 | 5851 | } |
252b5132 RH |
5852 | } |
5853 | else | |
5854 | { | |
1e951488 | 5855 | if (p->p_type == PT_LOAD) |
b301b248 | 5856 | { |
1e951488 AM |
5857 | this_hdr->sh_offset = sec->filepos = off; |
5858 | if (this_hdr->sh_type != SHT_NOBITS) | |
5859 | off += this_hdr->sh_size; | |
5860 | } | |
5861 | else if (this_hdr->sh_type == SHT_NOBITS | |
5862 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5863 | && this_hdr->sh_offset == 0) | |
5864 | { | |
5865 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5866 | (See _bfd_elf_map_sections_to_segments "Create a | |
5867 | final PT_LOAD".) Set sh_offset to the value it | |
5868 | would have if we had created a zero p_filesz and | |
5869 | p_memsz PT_LOAD header for the section. This | |
5870 | also makes the PT_TLS header have the same | |
5871 | p_offset value. */ | |
5872 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5873 | off, align); | |
5874 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5875 | } |
252b5132 | 5876 | |
02bf8d82 | 5877 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5878 | { |
6a3cd2b4 | 5879 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5880 | /* A load section without SHF_ALLOC is something like |
5881 | a note section in a PT_NOTE segment. These take | |
5882 | file space but are not loaded into memory. */ | |
5883 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5884 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5885 | } |
6a3cd2b4 | 5886 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5887 | { |
6a3cd2b4 AM |
5888 | if (p->p_type == PT_TLS) |
5889 | p->p_memsz += this_hdr->sh_size; | |
5890 | ||
5891 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5892 | normal segments. */ | |
5893 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5894 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5895 | } |
5896 | ||
b10a8ae0 L |
5897 | if (align > p->p_align |
5898 | && !m->p_align_valid | |
5899 | && (p->p_type != PT_LOAD | |
5900 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5901 | p->p_align = align; |
5902 | } | |
5903 | ||
bf988460 | 5904 | if (!m->p_flags_valid) |
252b5132 RH |
5905 | { |
5906 | p->p_flags |= PF_R; | |
02bf8d82 | 5907 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5908 | p->p_flags |= PF_X; |
02bf8d82 | 5909 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5910 | p->p_flags |= PF_W; |
5911 | } | |
5912 | } | |
43a8475c | 5913 | |
bf988460 | 5914 | off -= off_adjust; |
0920dee7 | 5915 | |
30fe1832 AM |
5916 | /* PR ld/20815 - Check that the program header segment, if |
5917 | present, will be loaded into memory. */ | |
5918 | if (p->p_type == PT_PHDR | |
5919 | && phdr_load_seg == NULL | |
5920 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5921 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5922 | { | |
5923 | /* The fix for this error is usually to edit the linker script being | |
5924 | used and set up the program headers manually. Either that or | |
5925 | leave room for the headers at the start of the SECTIONS. */ | |
5926 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5927 | " by LOAD segment"), | |
5928 | abfd); | |
7b3c2715 AM |
5929 | if (link_info == NULL) |
5930 | return FALSE; | |
5931 | /* Arrange for the linker to exit with an error, deleting | |
5932 | the output file unless --noinhibit-exec is given. */ | |
5933 | link_info->callbacks->info ("%X"); | |
30fe1832 AM |
5934 | } |
5935 | ||
7c928300 AM |
5936 | /* Check that all sections are in a PT_LOAD segment. |
5937 | Don't check funky gdb generated core files. */ | |
5938 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5939 | { |
5940 | bfd_boolean check_vma = TRUE; | |
5941 | ||
5942 | for (i = 1; i < m->count; i++) | |
5943 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5944 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5945 | ->this_hdr), p) != 0 | |
5946 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5947 | ->this_hdr), p) != 0) | |
0920dee7 | 5948 | { |
9a83a553 AM |
5949 | /* Looks like we have overlays packed into the segment. */ |
5950 | check_vma = FALSE; | |
5951 | break; | |
0920dee7 | 5952 | } |
9a83a553 AM |
5953 | |
5954 | for (i = 0; i < m->count; i++) | |
5955 | { | |
5956 | Elf_Internal_Shdr *this_hdr; | |
5957 | asection *sec; | |
5958 | ||
5959 | sec = m->sections[i]; | |
5960 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5961 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5962 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5963 | { |
4eca0228 | 5964 | _bfd_error_handler |
695344c0 | 5965 | /* xgettext:c-format */ |
871b3ab2 | 5966 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5967 | abfd, sec, j); |
5968 | print_segment_map (m); | |
5969 | } | |
5970 | } | |
5971 | } | |
252b5132 RH |
5972 | } |
5973 | ||
12bd6957 | 5974 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
5975 | |
5976 | if (link_info != NULL | |
5977 | && phdr_load_seg != NULL | |
5978 | && phdr_load_seg->includes_filehdr) | |
5979 | { | |
5980 | /* There is a segment that contains both the file headers and the | |
5981 | program headers, so provide a symbol __ehdr_start pointing there. | |
5982 | A program can use this to examine itself robustly. */ | |
5983 | ||
5984 | struct elf_link_hash_entry *hash | |
5985 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5986 | FALSE, FALSE, TRUE); | |
5987 | /* If the symbol was referenced and not defined, define it. */ | |
5988 | if (hash != NULL | |
5989 | && (hash->root.type == bfd_link_hash_new | |
5990 | || hash->root.type == bfd_link_hash_undefined | |
5991 | || hash->root.type == bfd_link_hash_undefweak | |
5992 | || hash->root.type == bfd_link_hash_common)) | |
5993 | { | |
5994 | asection *s = NULL; | |
5995 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr; | |
5996 | ||
5997 | if (phdr_load_seg->count != 0) | |
5998 | /* The segment contains sections, so use the first one. */ | |
5999 | s = phdr_load_seg->sections[0]; | |
6000 | else | |
6001 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
6002 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6003 | if (m->p_type == PT_LOAD && m->count != 0) | |
6004 | { | |
6005 | s = m->sections[0]; | |
6006 | break; | |
6007 | } | |
6008 | ||
6009 | if (s != NULL) | |
6010 | { | |
6011 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6012 | hash->root.u.def.section = s; | |
6013 | } | |
6014 | else | |
6015 | { | |
6016 | hash->root.u.def.value = filehdr_vaddr; | |
6017 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6018 | } | |
6019 | ||
6020 | hash->root.type = bfd_link_hash_defined; | |
6021 | hash->def_regular = 1; | |
6022 | hash->non_elf = 0; | |
6023 | } | |
6024 | } | |
6025 | ||
f3520d2f AM |
6026 | return TRUE; |
6027 | } | |
6028 | ||
1faa385f NC |
6029 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6030 | is no defined method for detecting such files, so we have to | |
6031 | use heuristics instead. */ | |
6032 | ||
6033 | bfd_boolean | |
6034 | is_debuginfo_file (bfd *abfd) | |
6035 | { | |
6036 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
6037 | return FALSE; | |
6038 | ||
6039 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6040 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6041 | Elf_Internal_Shdr **headerp; | |
6042 | ||
6043 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6044 | { | |
6045 | Elf_Internal_Shdr *header = * headerp; | |
6046 | ||
6047 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6048 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6049 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6050 | && header->sh_type != SHT_NOBITS | |
6051 | && header->sh_type != SHT_NOTE) | |
6052 | return FALSE; | |
6053 | } | |
6054 | ||
6055 | return TRUE; | |
6056 | } | |
6057 | ||
1ff6de03 NA |
6058 | /* Assign file positions for the other sections, except for compressed debugging |
6059 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f AM |
6060 | |
6061 | static bfd_boolean | |
6062 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
6063 | struct bfd_link_info *link_info) | |
6064 | { | |
6065 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6066 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6067 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6068 | Elf_Internal_Phdr *phdrs; |
6069 | Elf_Internal_Phdr *p; | |
6070 | struct elf_segment_map *m; | |
f3520d2f | 6071 | file_ptr off; |
f3520d2f | 6072 | |
5c182d5f | 6073 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6074 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6075 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6076 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6077 | { |
5c182d5f AM |
6078 | Elf_Internal_Shdr *hdr; |
6079 | ||
6080 | hdr = *hdrpp; | |
6081 | if (hdr->bfd_section != NULL | |
252e386e AM |
6082 | && (hdr->bfd_section->filepos != 0 |
6083 | || (hdr->sh_type == SHT_NOBITS | |
6084 | && hdr->contents == NULL))) | |
627b32bc | 6085 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6086 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6087 | { | |
1faa385f NC |
6088 | if (hdr->sh_size != 0 |
6089 | /* PR 24717 - debuginfo files are known to be not strictly | |
6090 | compliant with the ELF standard. In particular they often | |
6091 | have .note.gnu.property sections that are outside of any | |
6092 | loadable segment. This is not a problem for such files, | |
6093 | so do not warn about them. */ | |
6094 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6095 | _bfd_error_handler |
695344c0 | 6096 | /* xgettext:c-format */ |
871b3ab2 | 6097 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6098 | abfd, |
6099 | (hdr->bfd_section == NULL | |
6100 | ? "*unknown*" | |
6101 | : hdr->bfd_section->name)); | |
3ba71138 L |
6102 | /* We don't need to page align empty sections. */ |
6103 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
6104 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
6105 | bed->maxpagesize); | |
6106 | else | |
6107 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
6108 | hdr->sh_addralign); | |
6109 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
6110 | FALSE); | |
6111 | } | |
6112 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6113 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6114 | /* We don't know the offset of these sections yet: their size has |
6115 | not been decided. */ | |
0ce398f1 | 6116 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6117 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6118 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6119 | && abfd->is_linker_output))) | |
12bd6957 | 6120 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6121 | || (elf_symtab_shndx_list (abfd) != NULL |
6122 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6123 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6124 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6125 | hdr->sh_offset = -1; |
6126 | else | |
6127 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f | 6128 | } |
30fe1832 | 6129 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6130 | |
252b5132 RH |
6131 | /* Now that we have set the section file positions, we can set up |
6132 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6133 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6134 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6135 | { |
129af99f | 6136 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6137 | { |
f2731e0c | 6138 | bfd_vma start, end; |
01f7e10c | 6139 | bfd_boolean ok; |
1ea63fd2 | 6140 | |
129af99f | 6141 | if (link_info != NULL) |
8c37241b | 6142 | { |
129af99f | 6143 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6144 | in link_info. Note that there may be padding between |
6145 | relro_start and the first RELRO section. */ | |
6146 | start = link_info->relro_start; | |
6147 | end = link_info->relro_end; | |
6148 | } | |
6149 | else if (m->count != 0) | |
6150 | { | |
6151 | if (!m->p_size_valid) | |
6152 | abort (); | |
6153 | start = m->sections[0]->vma; | |
6154 | end = start + m->p_size; | |
6155 | } | |
6156 | else | |
6157 | { | |
6158 | start = 0; | |
6159 | end = 0; | |
6160 | } | |
6161 | ||
01f7e10c | 6162 | ok = FALSE; |
f2731e0c AM |
6163 | if (start < end) |
6164 | { | |
6165 | struct elf_segment_map *lm; | |
6166 | const Elf_Internal_Phdr *lp; | |
6167 | unsigned int i; | |
6168 | ||
6169 | /* Find a LOAD segment containing a section in the RELRO | |
6170 | segment. */ | |
12bd6957 | 6171 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6172 | lm != NULL; |
6173 | lm = lm->next, lp++) | |
8c37241b JJ |
6174 | { |
6175 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6176 | && lm->count != 0 |
dbc88fc1 AM |
6177 | && (lm->sections[lm->count - 1]->vma |
6178 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
6179 | ? lm->sections[lm->count - 1]->size | |
6180 | : 0)) > start | |
f2731e0c | 6181 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6182 | break; |
6183 | } | |
f2731e0c | 6184 | |
01f7e10c | 6185 | if (lm != NULL) |
129af99f | 6186 | { |
01f7e10c AM |
6187 | /* Find the section starting the RELRO segment. */ |
6188 | for (i = 0; i < lm->count; i++) | |
6189 | { | |
6190 | asection *s = lm->sections[i]; | |
6191 | if (s->vma >= start | |
6192 | && s->vma < end | |
6193 | && s->size != 0) | |
6194 | break; | |
6195 | } | |
6196 | ||
6197 | if (i < lm->count) | |
6198 | { | |
6199 | p->p_vaddr = lm->sections[i]->vma; | |
6200 | p->p_paddr = lm->sections[i]->lma; | |
6201 | p->p_offset = lm->sections[i]->filepos; | |
6202 | p->p_memsz = end - p->p_vaddr; | |
6203 | p->p_filesz = p->p_memsz; | |
6204 | ||
6205 | /* The RELRO segment typically ends a few bytes | |
6206 | into .got.plt but other layouts are possible. | |
6207 | In cases where the end does not match any | |
6208 | loaded section (for instance is in file | |
6209 | padding), trim p_filesz back to correspond to | |
6210 | the end of loaded section contents. */ | |
6211 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6212 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6213 | ||
6214 | /* Preserve the alignment and flags if they are | |
6215 | valid. The gold linker generates RW/4 for | |
6216 | the PT_GNU_RELRO section. It is better for | |
6217 | objcopy/strip to honor these attributes | |
6218 | otherwise gdb will choke when using separate | |
6219 | debug files. */ | |
6220 | if (!m->p_align_valid) | |
6221 | p->p_align = 1; | |
6222 | if (!m->p_flags_valid) | |
6223 | p->p_flags = PF_R; | |
6224 | ok = TRUE; | |
6225 | } | |
129af99f | 6226 | } |
b84a33b5 | 6227 | } |
01f7e10c AM |
6228 | if (link_info != NULL) |
6229 | BFD_ASSERT (ok); | |
6230 | if (!ok) | |
6231 | memset (p, 0, sizeof *p); | |
129af99f | 6232 | } |
04c3a755 NS |
6233 | else if (p->p_type == PT_GNU_STACK) |
6234 | { | |
6235 | if (m->p_size_valid) | |
6236 | p->p_memsz = m->p_size; | |
6237 | } | |
129af99f AS |
6238 | else if (m->count != 0) |
6239 | { | |
e06efbf1 | 6240 | unsigned int i; |
1a9ccd70 | 6241 | |
129af99f AS |
6242 | if (p->p_type != PT_LOAD |
6243 | && (p->p_type != PT_NOTE | |
6244 | || bfd_get_format (abfd) != bfd_core)) | |
6245 | { | |
1a9ccd70 NC |
6246 | /* A user specified segment layout may include a PHDR |
6247 | segment that overlaps with a LOAD segment... */ | |
6248 | if (p->p_type == PT_PHDR) | |
6249 | { | |
6250 | m->count = 0; | |
6251 | continue; | |
6252 | } | |
6253 | ||
c86934ce NC |
6254 | if (m->includes_filehdr || m->includes_phdrs) |
6255 | { | |
b1fa9dd6 | 6256 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6257 | _bfd_error_handler |
871b3ab2 | 6258 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6259 | "and/or program header"), |
6260 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6261 | return FALSE; |
6262 | } | |
129af99f | 6263 | |
86b2281f | 6264 | p->p_filesz = 0; |
129af99f | 6265 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6266 | for (i = m->count; i-- != 0;) |
6267 | { | |
6268 | asection *sect = m->sections[i]; | |
6269 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6270 | if (hdr->sh_type != SHT_NOBITS) | |
6271 | { | |
6272 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6273 | + hdr->sh_size); | |
6274 | break; | |
6275 | } | |
6276 | } | |
129af99f AS |
6277 | } |
6278 | } | |
252b5132 RH |
6279 | } |
6280 | ||
b34976b6 | 6281 | return TRUE; |
252b5132 RH |
6282 | } |
6283 | ||
6a40cf0c NC |
6284 | static elf_section_list * |
6285 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6286 | { | |
6287 | for (;list != NULL; list = list->next) | |
6288 | if (list->ndx == i) | |
6289 | break; | |
6290 | return list; | |
6291 | } | |
6292 | ||
252b5132 RH |
6293 | /* Work out the file positions of all the sections. This is called by |
6294 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6295 | VMAs must be known before this is called. | |
6296 | ||
e0638f70 | 6297 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6298 | "side-channel" data attached to a section to which they apply, and those that |
6299 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6300 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6301 | here, unless they form part of the loadable image. Reloc sections not | |
6302 | assigned here (and compressed debugging sections and CTF sections which | |
6303 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6304 | assign_file_positions_for_relocs. |
252b5132 RH |
6305 | |
6306 | We also don't set the positions of the .symtab and .strtab here. */ | |
6307 | ||
b34976b6 | 6308 | static bfd_boolean |
c84fca4d AO |
6309 | assign_file_positions_except_relocs (bfd *abfd, |
6310 | struct bfd_link_info *link_info) | |
252b5132 | 6311 | { |
5c182d5f AM |
6312 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6313 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6314 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6315 | unsigned int alloc; |
252b5132 RH |
6316 | |
6317 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6318 | && bfd_get_format (abfd) != bfd_core) | |
6319 | { | |
5c182d5f AM |
6320 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6321 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6322 | Elf_Internal_Shdr **hdrpp; |
6323 | unsigned int i; | |
a485e98e | 6324 | file_ptr off; |
252b5132 RH |
6325 | |
6326 | /* Start after the ELF header. */ | |
6327 | off = i_ehdrp->e_ehsize; | |
6328 | ||
6329 | /* We are not creating an executable, which means that we are | |
6330 | not creating a program header, and that the actual order of | |
6331 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6332 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6333 | { |
6334 | Elf_Internal_Shdr *hdr; | |
6335 | ||
6336 | hdr = *hdrpp; | |
e0638f70 AM |
6337 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6338 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6339 | /* Do not assign offsets for these sections yet: we don't know |
6340 | their sizes. */ | |
0ce398f1 | 6341 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6342 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6343 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6344 | && abfd->is_linker_output))) | |
12bd6957 | 6345 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6346 | || (elf_symtab_shndx_list (abfd) != NULL |
6347 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6348 | || i == elf_strtab_sec (abfd) |
6349 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6350 | { |
6351 | hdr->sh_offset = -1; | |
252b5132 | 6352 | } |
9ad5cbcf | 6353 | else |
b34976b6 | 6354 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6355 | } |
a485e98e AM |
6356 | |
6357 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6358 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6359 | } |
6360 | else | |
6361 | { | |
252b5132 | 6362 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6363 | assignment of sections to segments. */ |
f3520d2f AM |
6364 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6365 | return FALSE; | |
6366 | ||
6367 | /* And for non-load sections. */ | |
6368 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6369 | return FALSE; | |
6d6c25c8 | 6370 | } |
f3520d2f | 6371 | |
6d6c25c8 AM |
6372 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
6373 | return FALSE; | |
1a9ccd70 | 6374 | |
6d6c25c8 AM |
6375 | /* Write out the program headers. */ |
6376 | alloc = i_ehdrp->e_phnum; | |
6377 | if (alloc != 0) | |
6378 | { | |
30fe1832 | 6379 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 NC |
6380 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6381 | return FALSE; | |
252b5132 RH |
6382 | } |
6383 | ||
b34976b6 | 6384 | return TRUE; |
252b5132 RH |
6385 | } |
6386 | ||
ed7e9d0b AM |
6387 | bfd_boolean |
6388 | _bfd_elf_init_file_header (bfd *abfd, | |
6389 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6390 | { |
3d540e93 | 6391 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6392 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6393 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6394 | |
6395 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6396 | |
2b0f7ef9 | 6397 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6398 | if (shstrtab == NULL) |
b34976b6 | 6399 | return FALSE; |
252b5132 RH |
6400 | |
6401 | elf_shstrtab (abfd) = shstrtab; | |
6402 | ||
6403 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6404 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6405 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6406 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6407 | ||
6408 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6409 | i_ehdrp->e_ident[EI_DATA] = | |
6410 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6411 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6412 | ||
252b5132 RH |
6413 | if ((abfd->flags & DYNAMIC) != 0) |
6414 | i_ehdrp->e_type = ET_DYN; | |
6415 | else if ((abfd->flags & EXEC_P) != 0) | |
6416 | i_ehdrp->e_type = ET_EXEC; | |
6417 | else if (bfd_get_format (abfd) == bfd_core) | |
6418 | i_ehdrp->e_type = ET_CORE; | |
6419 | else | |
6420 | i_ehdrp->e_type = ET_REL; | |
6421 | ||
6422 | switch (bfd_get_arch (abfd)) | |
6423 | { | |
6424 | case bfd_arch_unknown: | |
6425 | i_ehdrp->e_machine = EM_NONE; | |
6426 | break; | |
aa4f99bb AO |
6427 | |
6428 | /* There used to be a long list of cases here, each one setting | |
6429 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6430 | in the corresponding bfd definition. To avoid duplication, | |
6431 | the switch was removed. Machines that need special handling | |
6432 | can generally do it in elf_backend_final_write_processing(), | |
6433 | unless they need the information earlier than the final write. | |
6434 | Such need can generally be supplied by replacing the tests for | |
6435 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6436 | default: |
9c5bfbb7 AM |
6437 | i_ehdrp->e_machine = bed->elf_machine_code; |
6438 | } | |
aa4f99bb | 6439 | |
252b5132 RH |
6440 | i_ehdrp->e_version = bed->s->ev_current; |
6441 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6442 | ||
c044fabd | 6443 | /* No program header, for now. */ |
252b5132 RH |
6444 | i_ehdrp->e_phoff = 0; |
6445 | i_ehdrp->e_phentsize = 0; | |
6446 | i_ehdrp->e_phnum = 0; | |
6447 | ||
c044fabd | 6448 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6449 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6450 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6451 | ||
252b5132 | 6452 | elf_tdata (abfd)->symtab_hdr.sh_name = |
b34976b6 | 6453 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6454 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6455 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6456 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6457 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6458 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6459 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6460 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6461 | return FALSE; |
252b5132 | 6462 | |
b34976b6 | 6463 | return TRUE; |
252b5132 RH |
6464 | } |
6465 | ||
6d6c25c8 AM |
6466 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6467 | ||
6468 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6469 | ascending order, as per the ELF spec. But this breaks some programs, | |
6470 | including the Linux kernel. But really either the spec should be | |
6471 | changed or the programs updated. */ | |
6472 | ||
6473 | bfd_boolean | |
6474 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) | |
6475 | { | |
6476 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6477 | { | |
6478 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6479 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6480 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6481 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6482 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6483 | ||
6484 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6485 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6486 | for (; segment < end_segment; segment++) | |
6487 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6488 | p_vaddr = segment->p_vaddr; | |
6489 | ||
6490 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6491 | segments is non-zero. */ | |
6492 | if (p_vaddr) | |
6493 | i_ehdrp->e_type = ET_EXEC; | |
6494 | } | |
6495 | return TRUE; | |
6496 | } | |
6497 | ||
252b5132 | 6498 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6499 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6500 | |
0ce398f1 L |
6501 | static bfd_boolean |
6502 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6503 | { |
6504 | file_ptr off; | |
e06efbf1 | 6505 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6506 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6507 | Elf_Internal_Ehdr *i_ehdrp; |
6508 | const struct elf_backend_data *bed; | |
252b5132 | 6509 | |
12bd6957 | 6510 | off = elf_next_file_pos (abfd); |
252b5132 | 6511 | |
e06efbf1 L |
6512 | shdrpp = elf_elfsections (abfd); |
6513 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6514 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6515 | { |
252b5132 | 6516 | shdrp = *shdrpp; |
0ce398f1 L |
6517 | if (shdrp->sh_offset == -1) |
6518 | { | |
3e19fb8f | 6519 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6520 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6521 | || shdrp->sh_type == SHT_RELA); | |
1ff6de03 | 6522 | bfd_boolean is_ctf = sec && bfd_section_is_ctf (sec); |
0ce398f1 | 6523 | if (is_rel |
1ff6de03 | 6524 | || is_ctf |
3e19fb8f | 6525 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6526 | { |
1ff6de03 | 6527 | if (!is_rel && !is_ctf) |
0ce398f1 | 6528 | { |
3e19fb8f L |
6529 | const char *name = sec->name; |
6530 | struct bfd_elf_section_data *d; | |
6531 | ||
0ce398f1 | 6532 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6533 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6534 | shdrp->contents)) |
6535 | return FALSE; | |
3e19fb8f L |
6536 | |
6537 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6538 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6539 | { | |
6540 | /* If section is compressed with zlib-gnu, convert | |
6541 | section name from .debug_* to .zdebug_*. */ | |
6542 | char *new_name | |
6543 | = convert_debug_to_zdebug (abfd, name); | |
6544 | if (new_name == NULL) | |
6545 | return FALSE; | |
6546 | name = new_name; | |
6547 | } | |
dd905818 | 6548 | /* Add section name to section name section. */ |
3e19fb8f L |
6549 | if (shdrp->sh_name != (unsigned int) -1) |
6550 | abort (); | |
6551 | shdrp->sh_name | |
6552 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6553 | name, FALSE); | |
6554 | d = elf_section_data (sec); | |
6555 | ||
dd905818 | 6556 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6557 | if (d->rel.hdr |
6558 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6559 | d->rel.hdr, | |
6560 | name, FALSE)) | |
6561 | return FALSE; | |
6562 | if (d->rela.hdr | |
6563 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6564 | d->rela.hdr, | |
91cb26da | 6565 | name, TRUE)) |
3e19fb8f L |
6566 | return FALSE; |
6567 | ||
0ce398f1 | 6568 | /* Update section size and contents. */ |
3e19fb8f L |
6569 | shdrp->sh_size = sec->size; |
6570 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6571 | shdrp->bfd_section->contents = NULL; |
6572 | } | |
1ff6de03 NA |
6573 | else if (is_ctf) |
6574 | { | |
6575 | /* Update section size and contents. */ | |
6576 | shdrp->sh_size = sec->size; | |
6577 | shdrp->contents = sec->contents; | |
6578 | } | |
6579 | ||
0ce398f1 L |
6580 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6581 | off, | |
6582 | TRUE); | |
6583 | } | |
6584 | } | |
252b5132 RH |
6585 | } |
6586 | ||
3e19fb8f L |
6587 | /* Place section name section after DWARF debug sections have been |
6588 | compressed. */ | |
6589 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6590 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6591 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6592 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6593 | ||
6594 | /* Place the section headers. */ | |
a485e98e AM |
6595 | i_ehdrp = elf_elfheader (abfd); |
6596 | bed = get_elf_backend_data (abfd); | |
6597 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6598 | i_ehdrp->e_shoff = off; | |
6599 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6600 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6601 | |
6602 | return TRUE; | |
252b5132 RH |
6603 | } |
6604 | ||
b34976b6 | 6605 | bfd_boolean |
217aa764 | 6606 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6607 | { |
9c5bfbb7 | 6608 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6609 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6610 | bfd_boolean failed; |
9ad5cbcf | 6611 | unsigned int count, num_sec; |
30e8ee25 | 6612 | struct elf_obj_tdata *t; |
252b5132 RH |
6613 | |
6614 | if (! abfd->output_has_begun | |
217aa764 | 6615 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6616 | return FALSE; |
db727370 JL |
6617 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6618 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6619 | sections, and modification of existing section sizes was restricted. | |
6620 | This means the ELF header, program headers and section headers can't have | |
6621 | changed. | |
6622 | If the contents of any sections has been modified, then those changes have | |
6623 | already been written to the BFD. */ | |
6624 | else if (abfd->direction == both_direction) | |
6625 | { | |
6626 | BFD_ASSERT (abfd->output_has_begun); | |
6627 | return TRUE; | |
6628 | } | |
252b5132 RH |
6629 | |
6630 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6631 | |
b34976b6 | 6632 | failed = FALSE; |
252b5132 RH |
6633 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6634 | if (failed) | |
b34976b6 | 6635 | return FALSE; |
252b5132 | 6636 | |
0ce398f1 L |
6637 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6638 | return FALSE; | |
252b5132 | 6639 | |
c044fabd | 6640 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6641 | num_sec = elf_numsections (abfd); |
6642 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6643 | { |
3e19fb8f L |
6644 | i_shdrp[count]->sh_name |
6645 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6646 | i_shdrp[count]->sh_name); | |
252b5132 | 6647 | if (bed->elf_backend_section_processing) |
75506100 MR |
6648 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6649 | return FALSE; | |
252b5132 RH |
6650 | if (i_shdrp[count]->contents) |
6651 | { | |
dc810e39 AM |
6652 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6653 | ||
252b5132 | 6654 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6655 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6656 | return FALSE; |
252b5132 RH |
6657 | } |
6658 | } | |
6659 | ||
6660 | /* Write out the section header names. */ | |
30e8ee25 | 6661 | t = elf_tdata (abfd); |
26ae6d5e | 6662 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6663 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6664 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6665 | return FALSE; |
252b5132 | 6666 | |
cc364be6 AM |
6667 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
6668 | return FALSE; | |
252b5132 | 6669 | |
ff59fc36 RM |
6670 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6671 | return FALSE; | |
6672 | ||
6673 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6674 | if (t->o->build_id.after_write_object_contents != NULL) |
6675 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6676 | |
6677 | return TRUE; | |
252b5132 RH |
6678 | } |
6679 | ||
b34976b6 | 6680 | bfd_boolean |
217aa764 | 6681 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6682 | { |
c044fabd | 6683 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6684 | return _bfd_elf_write_object_contents (abfd); |
6685 | } | |
c044fabd KH |
6686 | |
6687 | /* Given a section, search the header to find them. */ | |
6688 | ||
cb33740c | 6689 | unsigned int |
198beae2 | 6690 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6691 | { |
9c5bfbb7 | 6692 | const struct elf_backend_data *bed; |
91d6fa6a | 6693 | unsigned int sec_index; |
252b5132 | 6694 | |
9ad5cbcf AM |
6695 | if (elf_section_data (asect) != NULL |
6696 | && elf_section_data (asect)->this_idx != 0) | |
6697 | return elf_section_data (asect)->this_idx; | |
6698 | ||
6699 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6700 | sec_index = SHN_ABS; |
af746e92 | 6701 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6702 | sec_index = SHN_COMMON; |
af746e92 | 6703 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6704 | sec_index = SHN_UNDEF; |
af746e92 | 6705 | else |
91d6fa6a | 6706 | sec_index = SHN_BAD; |
252b5132 | 6707 | |
af746e92 | 6708 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6709 | if (bed->elf_backend_section_from_bfd_section) |
6710 | { | |
91d6fa6a | 6711 | int retval = sec_index; |
9ad5cbcf | 6712 | |
af746e92 AM |
6713 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6714 | return retval; | |
252b5132 RH |
6715 | } |
6716 | ||
91d6fa6a | 6717 | if (sec_index == SHN_BAD) |
af746e92 | 6718 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6719 | |
91d6fa6a | 6720 | return sec_index; |
252b5132 RH |
6721 | } |
6722 | ||
6723 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6724 | on error. */ | |
6725 | ||
6726 | int | |
217aa764 | 6727 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6728 | { |
6729 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6730 | int idx; | |
6731 | flagword flags = asym_ptr->flags; | |
6732 | ||
6733 | /* When gas creates relocations against local labels, it creates its | |
6734 | own symbol for the section, but does put the symbol into the | |
6735 | symbol chain, so udata is 0. When the linker is generating | |
6736 | relocatable output, this section symbol may be for one of the | |
6737 | input sections rather than the output section. */ | |
6738 | if (asym_ptr->udata.i == 0 | |
6739 | && (flags & BSF_SECTION_SYM) | |
6740 | && asym_ptr->section) | |
6741 | { | |
5372391b | 6742 | asection *sec; |
252b5132 RH |
6743 | int indx; |
6744 | ||
5372391b AM |
6745 | sec = asym_ptr->section; |
6746 | if (sec->owner != abfd && sec->output_section != NULL) | |
6747 | sec = sec->output_section; | |
6748 | if (sec->owner == abfd | |
6749 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6750 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6751 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6752 | } | |
6753 | ||
6754 | idx = asym_ptr->udata.i; | |
6755 | ||
6756 | if (idx == 0) | |
6757 | { | |
6758 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6759 | which is used in a relocation entry. */ |
4eca0228 | 6760 | _bfd_error_handler |
695344c0 | 6761 | /* xgettext:c-format */ |
871b3ab2 | 6762 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6763 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6764 | bfd_set_error (bfd_error_no_symbols); |
6765 | return -1; | |
6766 | } | |
6767 | ||
6768 | #if DEBUG & 4 | |
6769 | { | |
6770 | fprintf (stderr, | |
cd9af601 AM |
6771 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6772 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6773 | fflush (stderr); |
6774 | } | |
6775 | #endif | |
6776 | ||
6777 | return idx; | |
6778 | } | |
6779 | ||
84d1d650 | 6780 | /* Rewrite program header information. */ |
252b5132 | 6781 | |
b34976b6 | 6782 | static bfd_boolean |
84d1d650 | 6783 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6784 | { |
b34976b6 AM |
6785 | Elf_Internal_Ehdr *iehdr; |
6786 | struct elf_segment_map *map; | |
6787 | struct elf_segment_map *map_first; | |
6788 | struct elf_segment_map **pointer_to_map; | |
6789 | Elf_Internal_Phdr *segment; | |
6790 | asection *section; | |
6791 | unsigned int i; | |
6792 | unsigned int num_segments; | |
6793 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6794 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6795 | bfd_vma maxpagesize; |
6796 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6797 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6798 | const struct elf_backend_data *bed; |
bc67d8a6 | 6799 | |
caf47ea6 | 6800 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6801 | iehdr = elf_elfheader (ibfd); |
6802 | ||
bc67d8a6 | 6803 | map_first = NULL; |
c044fabd | 6804 | pointer_to_map = &map_first; |
252b5132 RH |
6805 | |
6806 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6807 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6808 | ||
6809 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6810 | #define SEGMENT_END(segment, start) \ |
6811 | (start + (segment->p_memsz > segment->p_filesz \ | |
6812 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6813 | |
eecdbe52 JJ |
6814 | #define SECTION_SIZE(section, segment) \ |
6815 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6816 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6817 | ? section->size : 0) |
eecdbe52 | 6818 | |
b34976b6 | 6819 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6820 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6821 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6822 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6823 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6824 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6825 | |
b34976b6 | 6826 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6827 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6828 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6829 | (section->lma >= base \ | |
beab4532 | 6830 | && (section->lma + SECTION_SIZE (section, segment) >= section->lma) \ |
eecdbe52 | 6831 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6832 | <= SEGMENT_END (segment, base))) |
252b5132 | 6833 | |
0efc80c8 L |
6834 | /* Handle PT_NOTE segment. */ |
6835 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6836 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6837 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6838 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6839 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6840 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6841 | |
0efc80c8 L |
6842 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6843 | etc. */ | |
6844 | #define IS_COREFILE_NOTE(p, s) \ | |
6845 | (IS_NOTE (p, s) \ | |
6846 | && bfd_get_format (ibfd) == bfd_core \ | |
6847 | && s->vma == 0 \ | |
6848 | && s->lma == 0) | |
6849 | ||
252b5132 RH |
6850 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6851 | linker, which generates a PT_INTERP section with p_vaddr and | |
6852 | p_memsz set to 0. */ | |
aecc8f8a AM |
6853 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6854 | (p->p_vaddr == 0 \ | |
6855 | && p->p_paddr == 0 \ | |
6856 | && p->p_memsz == 0 \ | |
6857 | && p->p_filesz > 0 \ | |
6858 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6859 | && s->size > 0 \ |
aecc8f8a | 6860 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6861 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6862 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6863 | |
bc67d8a6 NC |
6864 | /* Decide if the given section should be included in the given segment. |
6865 | A section will be included if: | |
f5ffc919 | 6866 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6867 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6868 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6869 | segment. |
bc67d8a6 | 6870 | 3. There is an output section associated with it, |
eecdbe52 | 6871 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6872 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6873 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6874 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6875 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6876 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6877 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6878 | ((((segment->p_paddr \ |
6879 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6880 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6881 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6882 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6883 | && segment->p_type != PT_GNU_STACK \ |
6884 | && (segment->p_type != PT_TLS \ | |
6885 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6886 | && (segment->p_type == PT_LOAD \ | |
6887 | || segment->p_type == PT_TLS \ | |
6888 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6889 | && (segment->p_type != PT_DYNAMIC \ | |
6890 | || SECTION_SIZE (section, segment) > 0 \ | |
6891 | || (segment->p_paddr \ | |
6892 | ? segment->p_paddr != section->lma \ | |
6893 | : segment->p_vaddr != section->vma) \ | |
fd361982 | 6894 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6895 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6896 | |
9f17e2a6 L |
6897 | /* If the output section of a section in the input segment is NULL, |
6898 | it is removed from the corresponding output segment. */ | |
6899 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6900 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6901 | && section->output_section != NULL) | |
6902 | ||
b34976b6 | 6903 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6904 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6905 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6906 | ||
6907 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6908 | their VMA address ranges and their LMA address ranges overlap. | |
6909 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6910 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6911 | to the same VMA range, but with the .data section mapped to a different | |
6912 | LMA. */ | |
aecc8f8a | 6913 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6914 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6915 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6916 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6917 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6918 | |
6919 | /* Initialise the segment mark field. */ | |
6920 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6921 | section->segment_mark = FALSE; |
bc67d8a6 | 6922 | |
5c44b38e AM |
6923 | /* The Solaris linker creates program headers in which all the |
6924 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6925 | file, we get confused. Check for this case, and if we find it | |
6926 | don't set the p_paddr_valid fields. */ | |
6927 | p_paddr_valid = FALSE; | |
6928 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6929 | i < num_segments; | |
6930 | i++, segment++) | |
6931 | if (segment->p_paddr != 0) | |
6932 | { | |
6933 | p_paddr_valid = TRUE; | |
6934 | break; | |
6935 | } | |
6936 | ||
252b5132 | 6937 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6938 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6939 | in the loadable segments. These can be created by weird |
aecc8f8a | 6940 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6941 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6942 | i < num_segments; | |
c044fabd | 6943 | i++, segment++) |
252b5132 | 6944 | { |
252b5132 | 6945 | unsigned int j; |
c044fabd | 6946 | Elf_Internal_Phdr *segment2; |
252b5132 | 6947 | |
aecc8f8a AM |
6948 | if (segment->p_type == PT_INTERP) |
6949 | for (section = ibfd->sections; section; section = section->next) | |
6950 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6951 | { | |
6952 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6953 | assignment code will work. */ |
aecc8f8a AM |
6954 | segment->p_vaddr = section->vma; |
6955 | break; | |
6956 | } | |
6957 | ||
bc67d8a6 | 6958 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6959 | { |
6960 | /* Remove PT_GNU_RELRO segment. */ | |
6961 | if (segment->p_type == PT_GNU_RELRO) | |
6962 | segment->p_type = PT_NULL; | |
6963 | continue; | |
6964 | } | |
c044fabd | 6965 | |
bc67d8a6 | 6966 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6967 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6968 | { |
6969 | bfd_signed_vma extra_length; | |
c044fabd | 6970 | |
bc67d8a6 | 6971 | if (segment2->p_type != PT_LOAD |
0067a569 | 6972 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6973 | continue; |
c044fabd | 6974 | |
bc67d8a6 NC |
6975 | /* Merge the two segments together. */ |
6976 | if (segment2->p_vaddr < segment->p_vaddr) | |
6977 | { | |
c044fabd | 6978 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6979 | SEGMENT. */ |
0067a569 AM |
6980 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6981 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6982 | |
bc67d8a6 NC |
6983 | if (extra_length > 0) |
6984 | { | |
0067a569 | 6985 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6986 | segment2->p_filesz += extra_length; |
6987 | } | |
c044fabd | 6988 | |
bc67d8a6 | 6989 | segment->p_type = PT_NULL; |
c044fabd | 6990 | |
bc67d8a6 NC |
6991 | /* Since we have deleted P we must restart the outer loop. */ |
6992 | i = 0; | |
6993 | segment = elf_tdata (ibfd)->phdr; | |
6994 | break; | |
6995 | } | |
6996 | else | |
6997 | { | |
c044fabd | 6998 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6999 | SEGMENT2. */ |
0067a569 AM |
7000 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
7001 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 7002 | |
bc67d8a6 NC |
7003 | if (extra_length > 0) |
7004 | { | |
0067a569 | 7005 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7006 | segment->p_filesz += extra_length; |
7007 | } | |
c044fabd | 7008 | |
bc67d8a6 NC |
7009 | segment2->p_type = PT_NULL; |
7010 | } | |
7011 | } | |
7012 | } | |
c044fabd | 7013 | |
bc67d8a6 NC |
7014 | /* The second scan attempts to assign sections to segments. */ |
7015 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7016 | i < num_segments; | |
0067a569 | 7017 | i++, segment++) |
bc67d8a6 | 7018 | { |
0067a569 AM |
7019 | unsigned int section_count; |
7020 | asection **sections; | |
7021 | asection *output_section; | |
7022 | unsigned int isec; | |
9933dc52 AM |
7023 | asection *matching_lma; |
7024 | asection *suggested_lma; | |
0067a569 | 7025 | unsigned int j; |
446f7ed5 | 7026 | size_t amt; |
0067a569 | 7027 | asection *first_section; |
bc67d8a6 NC |
7028 | |
7029 | if (segment->p_type == PT_NULL) | |
7030 | continue; | |
c044fabd | 7031 | |
9f17e2a6 | 7032 | first_section = NULL; |
bc67d8a6 | 7033 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7034 | for (section = ibfd->sections, section_count = 0; |
7035 | section != NULL; | |
7036 | section = section->next) | |
9f17e2a6 L |
7037 | { |
7038 | /* Find the first section in the input segment, which may be | |
7039 | removed from the corresponding output segment. */ | |
7040 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
7041 | { | |
7042 | if (first_section == NULL) | |
7043 | first_section = section; | |
7044 | if (section->output_section != NULL) | |
7045 | ++section_count; | |
7046 | } | |
7047 | } | |
811072d8 | 7048 | |
b5f852ea NC |
7049 | /* Allocate a segment map big enough to contain |
7050 | all of the sections we have selected. */ | |
00bee008 | 7051 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7052 | amt += section_count * sizeof (asection *); |
a50b1753 | 7053 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7054 | if (map == NULL) |
b34976b6 | 7055 | return FALSE; |
252b5132 RH |
7056 | |
7057 | /* Initialise the fields of the segment map. Default to | |
7058 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7059 | map->next = NULL; |
7060 | map->p_type = segment->p_type; | |
7061 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7062 | map->p_flags_valid = 1; |
55d55ac7 | 7063 | |
9f17e2a6 L |
7064 | /* If the first section in the input segment is removed, there is |
7065 | no need to preserve segment physical address in the corresponding | |
7066 | output segment. */ | |
945c025a | 7067 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7068 | { |
7069 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7070 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7071 | } |
252b5132 RH |
7072 | |
7073 | /* Determine if this segment contains the ELF file header | |
7074 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7075 | map->includes_filehdr = (segment->p_offset == 0 |
7076 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7077 | map->includes_phdrs = 0; |
252b5132 | 7078 | |
0067a569 | 7079 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7080 | { |
bc67d8a6 NC |
7081 | map->includes_phdrs = |
7082 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7083 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7084 | >= ((bfd_vma) iehdr->e_phoff |
7085 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7086 | |
bc67d8a6 | 7087 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 7088 | phdr_included = TRUE; |
252b5132 RH |
7089 | } |
7090 | ||
bc67d8a6 | 7091 | if (section_count == 0) |
252b5132 RH |
7092 | { |
7093 | /* Special segments, such as the PT_PHDR segment, may contain | |
7094 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7095 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7096 | a warning is produced. |
f98450c6 NC |
7097 | There is however the valid use case of embedded systems which |
7098 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7099 | flash memory with zeros. No warning is shown for that case. */ | |
7100 | if (segment->p_type == PT_LOAD | |
7101 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7102 | /* xgettext:c-format */ | |
9793eb77 AM |
7103 | _bfd_error_handler |
7104 | (_("%pB: warning: empty loadable segment detected" | |
7105 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7106 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7107 | |
5d695627 | 7108 | map->p_vaddr_offset = segment->p_vaddr; |
bc67d8a6 | 7109 | map->count = 0; |
c044fabd KH |
7110 | *pointer_to_map = map; |
7111 | pointer_to_map = &map->next; | |
252b5132 RH |
7112 | |
7113 | continue; | |
7114 | } | |
7115 | ||
7116 | /* Now scan the sections in the input BFD again and attempt | |
7117 | to add their corresponding output sections to the segment map. | |
7118 | The problem here is how to handle an output section which has | |
7119 | been moved (ie had its LMA changed). There are four possibilities: | |
7120 | ||
7121 | 1. None of the sections have been moved. | |
7122 | In this case we can continue to use the segment LMA from the | |
7123 | input BFD. | |
7124 | ||
7125 | 2. All of the sections have been moved by the same amount. | |
7126 | In this case we can change the segment's LMA to match the LMA | |
7127 | of the first section. | |
7128 | ||
7129 | 3. Some of the sections have been moved, others have not. | |
7130 | In this case those sections which have not been moved can be | |
7131 | placed in the current segment which will have to have its size, | |
7132 | and possibly its LMA changed, and a new segment or segments will | |
7133 | have to be created to contain the other sections. | |
7134 | ||
b5f852ea | 7135 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7136 | In this case we can change the segment's LMA to match the LMA |
7137 | of the first section and we will have to create a new segment | |
7138 | or segments to contain the other sections. | |
7139 | ||
7140 | In order to save time, we allocate an array to hold the section | |
7141 | pointers that we are interested in. As these sections get assigned | |
7142 | to a segment, they are removed from this array. */ | |
7143 | ||
446f7ed5 AM |
7144 | amt = section_count * sizeof (asection *); |
7145 | sections = (asection **) bfd_malloc (amt); | |
252b5132 | 7146 | if (sections == NULL) |
b34976b6 | 7147 | return FALSE; |
252b5132 RH |
7148 | |
7149 | /* Step One: Scan for segment vs section LMA conflicts. | |
7150 | Also add the sections to the section array allocated above. | |
7151 | Also add the sections to the current segment. In the common | |
7152 | case, where the sections have not been moved, this means that | |
7153 | we have completely filled the segment, and there is nothing | |
7154 | more to do. */ | |
252b5132 | 7155 | isec = 0; |
9933dc52 AM |
7156 | matching_lma = NULL; |
7157 | suggested_lma = NULL; | |
252b5132 | 7158 | |
461c4b2e | 7159 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7160 | section != NULL; |
7161 | section = section->next) | |
252b5132 | 7162 | { |
caf47ea6 | 7163 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 7164 | { |
bc67d8a6 NC |
7165 | output_section = section->output_section; |
7166 | ||
0067a569 | 7167 | sections[j++] = section; |
252b5132 RH |
7168 | |
7169 | /* The Solaris native linker always sets p_paddr to 0. | |
7170 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7171 | correct value. Note - some backends require that |
7172 | p_paddr be left as zero. */ | |
5c44b38e | 7173 | if (!p_paddr_valid |
4455705d | 7174 | && segment->p_vaddr != 0 |
0067a569 | 7175 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7176 | && isec == 0 |
bc67d8a6 | 7177 | && output_section->lma != 0 |
9933dc52 AM |
7178 | && (align_power (segment->p_vaddr |
7179 | + (map->includes_filehdr | |
7180 | ? iehdr->e_ehsize : 0) | |
7181 | + (map->includes_phdrs | |
7182 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7183 | : 0), | |
7184 | output_section->alignment_power) | |
7185 | == output_section->vma)) | |
bc67d8a6 | 7186 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7187 | |
7188 | /* Match up the physical address of the segment with the | |
7189 | LMA address of the output section. */ | |
bc67d8a6 | 7190 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 7191 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
7192 | || (bed->want_p_paddr_set_to_zero |
7193 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 7194 | { |
9933dc52 AM |
7195 | if (matching_lma == NULL |
7196 | || output_section->lma < matching_lma->lma) | |
7197 | matching_lma = output_section; | |
252b5132 RH |
7198 | |
7199 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7200 | then it does not overlap any other section within that |
252b5132 | 7201 | segment. */ |
0067a569 AM |
7202 | map->sections[isec++] = output_section; |
7203 | } | |
9933dc52 AM |
7204 | else if (suggested_lma == NULL) |
7205 | suggested_lma = output_section; | |
147d51c2 L |
7206 | |
7207 | if (j == section_count) | |
7208 | break; | |
252b5132 RH |
7209 | } |
7210 | } | |
7211 | ||
bc67d8a6 | 7212 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7213 | |
7214 | /* Step Two: Adjust the physical address of the current segment, | |
7215 | if necessary. */ | |
bc67d8a6 | 7216 | if (isec == section_count) |
252b5132 RH |
7217 | { |
7218 | /* All of the sections fitted within the segment as currently | |
7219 | specified. This is the default case. Add the segment to | |
7220 | the list of built segments and carry on to process the next | |
7221 | program header in the input BFD. */ | |
bc67d8a6 | 7222 | map->count = section_count; |
c044fabd KH |
7223 | *pointer_to_map = map; |
7224 | pointer_to_map = &map->next; | |
08a40648 | 7225 | |
5c44b38e | 7226 | if (p_paddr_valid |
30fe1832 AM |
7227 | && !bed->want_p_paddr_set_to_zero) |
7228 | { | |
7229 | bfd_vma hdr_size = 0; | |
7230 | if (map->includes_filehdr) | |
7231 | hdr_size = iehdr->e_ehsize; | |
7232 | if (map->includes_phdrs) | |
7233 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7234 | ||
7235 | /* Account for padding before the first section in the | |
7236 | segment. */ | |
7237 | map->p_vaddr_offset = map->p_paddr + hdr_size - matching_lma->lma; | |
7238 | } | |
08a40648 | 7239 | |
252b5132 RH |
7240 | free (sections); |
7241 | continue; | |
7242 | } | |
252b5132 RH |
7243 | else |
7244 | { | |
9933dc52 AM |
7245 | /* Change the current segment's physical address to match |
7246 | the LMA of the first section that fitted, or if no | |
7247 | section fitted, the first section. */ | |
7248 | if (matching_lma == NULL) | |
7249 | matching_lma = suggested_lma; | |
7250 | ||
7251 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7252 | |
bc67d8a6 NC |
7253 | /* Offset the segment physical address from the lma |
7254 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7255 | if (map->includes_phdrs) |
010c8431 | 7256 | { |
9933dc52 AM |
7257 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7258 | ||
7259 | /* iehdr->e_phnum is just an estimate of the number | |
7260 | of program headers that we will need. Make a note | |
7261 | here of the number we used and the segment we chose | |
7262 | to hold these headers, so that we can adjust the | |
7263 | offset when we know the correct value. */ | |
7264 | phdr_adjust_num = iehdr->e_phnum; | |
7265 | phdr_adjust_seg = map; | |
010c8431 | 7266 | } |
252b5132 | 7267 | |
9933dc52 | 7268 | if (map->includes_filehdr) |
bc67d8a6 | 7269 | { |
9933dc52 AM |
7270 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7271 | map->p_paddr -= iehdr->e_ehsize; | |
7272 | /* We've subtracted off the size of headers from the | |
7273 | first section lma, but there may have been some | |
7274 | alignment padding before that section too. Try to | |
7275 | account for that by adjusting the segment lma down to | |
7276 | the same alignment. */ | |
7277 | if (segment->p_align != 0 && segment->p_align < align) | |
7278 | align = segment->p_align; | |
7279 | map->p_paddr &= -align; | |
bc67d8a6 | 7280 | } |
252b5132 RH |
7281 | } |
7282 | ||
7283 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7284 | those that fit to the current segment and removing them from the |
252b5132 RH |
7285 | sections array; but making sure not to leave large gaps. Once all |
7286 | possible sections have been assigned to the current segment it is | |
7287 | added to the list of built segments and if sections still remain | |
7288 | to be assigned, a new segment is constructed before repeating | |
7289 | the loop. */ | |
7290 | isec = 0; | |
7291 | do | |
7292 | { | |
bc67d8a6 | 7293 | map->count = 0; |
9933dc52 | 7294 | suggested_lma = NULL; |
252b5132 RH |
7295 | |
7296 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7297 | for (j = 0; j < section_count; j++) |
252b5132 | 7298 | { |
bc67d8a6 | 7299 | section = sections[j]; |
252b5132 | 7300 | |
bc67d8a6 | 7301 | if (section == NULL) |
252b5132 RH |
7302 | continue; |
7303 | ||
bc67d8a6 | 7304 | output_section = section->output_section; |
252b5132 | 7305 | |
bc67d8a6 | 7306 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7307 | |
bc67d8a6 NC |
7308 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7309 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7310 | { |
bc67d8a6 | 7311 | if (map->count == 0) |
252b5132 RH |
7312 | { |
7313 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7314 | the beginning of the segment, then something is |
7315 | wrong. */ | |
9933dc52 AM |
7316 | if (align_power (map->p_paddr |
7317 | + (map->includes_filehdr | |
7318 | ? iehdr->e_ehsize : 0) | |
7319 | + (map->includes_phdrs | |
7320 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7321 | : 0), | |
7322 | output_section->alignment_power) | |
7323 | != output_section->lma) | |
9aea1e31 | 7324 | goto sorry; |
252b5132 RH |
7325 | } |
7326 | else | |
7327 | { | |
0067a569 | 7328 | asection *prev_sec; |
252b5132 | 7329 | |
bc67d8a6 | 7330 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7331 | |
7332 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7333 | and the start of this section is more than |
7334 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7335 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7336 | maxpagesize) |
caf47ea6 | 7337 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7338 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7339 | > output_section->lma)) |
252b5132 | 7340 | { |
9933dc52 AM |
7341 | if (suggested_lma == NULL) |
7342 | suggested_lma = output_section; | |
252b5132 RH |
7343 | |
7344 | continue; | |
7345 | } | |
7346 | } | |
7347 | ||
bc67d8a6 | 7348 | map->sections[map->count++] = output_section; |
252b5132 RH |
7349 | ++isec; |
7350 | sections[j] = NULL; | |
9933dc52 AM |
7351 | if (segment->p_type == PT_LOAD) |
7352 | section->segment_mark = TRUE; | |
0067a569 | 7353 | } |
9933dc52 AM |
7354 | else if (suggested_lma == NULL) |
7355 | suggested_lma = output_section; | |
252b5132 RH |
7356 | } |
7357 | ||
beab4532 NC |
7358 | /* PR 23932. A corrupt input file may contain sections that cannot |
7359 | be assigned to any segment - because for example they have a | |
9984857c NC |
7360 | negative size - or segments that do not contain any sections. |
7361 | But there are also valid reasons why a segment can be empty. | |
7362 | So allow a count of zero. */ | |
252b5132 RH |
7363 | |
7364 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7365 | *pointer_to_map = map; |
7366 | pointer_to_map = &map->next; | |
252b5132 | 7367 | |
bc67d8a6 | 7368 | if (isec < section_count) |
252b5132 RH |
7369 | { |
7370 | /* We still have not allocated all of the sections to | |
7371 | segments. Create a new segment here, initialise it | |
7372 | and carry on looping. */ | |
00bee008 | 7373 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7374 | amt += section_count * sizeof (asection *); |
5964fc3a | 7375 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7376 | if (map == NULL) |
5ed6aba4 NC |
7377 | { |
7378 | free (sections); | |
7379 | return FALSE; | |
7380 | } | |
252b5132 RH |
7381 | |
7382 | /* Initialise the fields of the segment map. Set the physical | |
7383 | physical address to the LMA of the first section that has | |
7384 | not yet been assigned. */ | |
0067a569 AM |
7385 | map->next = NULL; |
7386 | map->p_type = segment->p_type; | |
7387 | map->p_flags = segment->p_flags; | |
7388 | map->p_flags_valid = 1; | |
9933dc52 | 7389 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7390 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7391 | map->includes_filehdr = 0; |
0067a569 | 7392 | map->includes_phdrs = 0; |
252b5132 | 7393 | } |
9984857c NC |
7394 | |
7395 | continue; | |
7396 | sorry: | |
7397 | bfd_set_error (bfd_error_sorry); | |
7398 | free (sections); | |
7399 | return FALSE; | |
252b5132 | 7400 | } |
bc67d8a6 | 7401 | while (isec < section_count); |
252b5132 RH |
7402 | |
7403 | free (sections); | |
7404 | } | |
7405 | ||
12bd6957 | 7406 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7407 | |
7408 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7409 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7410 | the offset if necessary. */ |
7411 | if (phdr_adjust_seg != NULL) | |
7412 | { | |
7413 | unsigned int count; | |
c044fabd | 7414 | |
bc67d8a6 | 7415 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7416 | count++; |
252b5132 | 7417 | |
bc67d8a6 NC |
7418 | if (count > phdr_adjust_num) |
7419 | phdr_adjust_seg->p_paddr | |
7420 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7421 | |
7422 | for (map = map_first; map != NULL; map = map->next) | |
7423 | if (map->p_type == PT_PHDR) | |
7424 | { | |
7425 | bfd_vma adjust | |
7426 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7427 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7428 | break; | |
7429 | } | |
bc67d8a6 | 7430 | } |
c044fabd | 7431 | |
bc67d8a6 | 7432 | #undef SEGMENT_END |
eecdbe52 | 7433 | #undef SECTION_SIZE |
bc67d8a6 NC |
7434 | #undef IS_CONTAINED_BY_VMA |
7435 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7436 | #undef IS_NOTE |
252b5132 | 7437 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7438 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7439 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7440 | #undef INCLUDE_SECTION_IN_SEGMENT |
7441 | #undef SEGMENT_AFTER_SEGMENT | |
7442 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7443 | return TRUE; |
252b5132 RH |
7444 | } |
7445 | ||
84d1d650 L |
7446 | /* Copy ELF program header information. */ |
7447 | ||
7448 | static bfd_boolean | |
7449 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7450 | { | |
7451 | Elf_Internal_Ehdr *iehdr; | |
7452 | struct elf_segment_map *map; | |
7453 | struct elf_segment_map *map_first; | |
7454 | struct elf_segment_map **pointer_to_map; | |
7455 | Elf_Internal_Phdr *segment; | |
7456 | unsigned int i; | |
7457 | unsigned int num_segments; | |
7458 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7459 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7460 | |
7461 | iehdr = elf_elfheader (ibfd); | |
7462 | ||
7463 | map_first = NULL; | |
7464 | pointer_to_map = &map_first; | |
7465 | ||
88967714 AM |
7466 | /* If all the segment p_paddr fields are zero, don't set |
7467 | map->p_paddr_valid. */ | |
7468 | p_paddr_valid = FALSE; | |
84d1d650 | 7469 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7470 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7471 | i < num_segments; | |
7472 | i++, segment++) | |
7473 | if (segment->p_paddr != 0) | |
7474 | { | |
7475 | p_paddr_valid = TRUE; | |
7476 | break; | |
7477 | } | |
7478 | ||
84d1d650 L |
7479 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7480 | i < num_segments; | |
7481 | i++, segment++) | |
7482 | { | |
7483 | asection *section; | |
7484 | unsigned int section_count; | |
986f0783 | 7485 | size_t amt; |
84d1d650 | 7486 | Elf_Internal_Shdr *this_hdr; |
53020534 | 7487 | asection *first_section = NULL; |
a76e6f2f | 7488 | asection *lowest_section; |
84d1d650 | 7489 | |
84d1d650 L |
7490 | /* Compute how many sections are in this segment. */ |
7491 | for (section = ibfd->sections, section_count = 0; | |
7492 | section != NULL; | |
7493 | section = section->next) | |
7494 | { | |
7495 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7496 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7497 | { |
a76e6f2f AM |
7498 | if (first_section == NULL) |
7499 | first_section = section; | |
3271a814 NS |
7500 | section_count++; |
7501 | } | |
84d1d650 L |
7502 | } |
7503 | ||
7504 | /* Allocate a segment map big enough to contain | |
7505 | all of the sections we have selected. */ | |
00bee008 | 7506 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
986f0783 | 7507 | amt += section_count * sizeof (asection *); |
a50b1753 | 7508 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7509 | if (map == NULL) |
7510 | return FALSE; | |
7511 | ||
7512 | /* Initialize the fields of the output segment map with the | |
7513 | input segment. */ | |
7514 | map->next = NULL; | |
7515 | map->p_type = segment->p_type; | |
7516 | map->p_flags = segment->p_flags; | |
7517 | map->p_flags_valid = 1; | |
7518 | map->p_paddr = segment->p_paddr; | |
88967714 | 7519 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7520 | map->p_align = segment->p_align; |
7521 | map->p_align_valid = 1; | |
3271a814 | 7522 | map->p_vaddr_offset = 0; |
84d1d650 | 7523 | |
04c3a755 NS |
7524 | if (map->p_type == PT_GNU_RELRO |
7525 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7526 | { |
7527 | /* The PT_GNU_RELRO segment may contain the first a few | |
7528 | bytes in the .got.plt section even if the whole .got.plt | |
7529 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7530 | change the size of the PT_GNU_RELRO segment. |
7531 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7532 | systems. */ | |
9433b9b1 | 7533 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7534 | map->p_size_valid = 1; |
7535 | } | |
7536 | ||
84d1d650 L |
7537 | /* Determine if this segment contains the ELF file header |
7538 | and if it contains the program headers themselves. */ | |
7539 | map->includes_filehdr = (segment->p_offset == 0 | |
7540 | && segment->p_filesz >= iehdr->e_ehsize); | |
7541 | ||
7542 | map->includes_phdrs = 0; | |
7543 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7544 | { | |
7545 | map->includes_phdrs = | |
7546 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7547 | && (segment->p_offset + segment->p_filesz | |
7548 | >= ((bfd_vma) iehdr->e_phoff | |
7549 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7550 | ||
7551 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7552 | phdr_included = TRUE; | |
7553 | } | |
7554 | ||
bbefd0a9 | 7555 | lowest_section = NULL; |
84d1d650 L |
7556 | if (section_count != 0) |
7557 | { | |
7558 | unsigned int isec = 0; | |
7559 | ||
53020534 | 7560 | for (section = first_section; |
84d1d650 L |
7561 | section != NULL; |
7562 | section = section->next) | |
7563 | { | |
7564 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7565 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7566 | { |
7567 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7568 | if ((section->flags & SEC_ALLOC) != 0) |
7569 | { | |
7570 | bfd_vma seg_off; | |
7571 | ||
bbefd0a9 AM |
7572 | if (lowest_section == NULL |
7573 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7574 | lowest_section = section; |
7575 | ||
a76e6f2f AM |
7576 | /* Section lmas are set up from PT_LOAD header |
7577 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7578 | If this header has a p_paddr that disagrees | |
7579 | with the section lma, flag the p_paddr as | |
7580 | invalid. */ | |
7581 | if ((section->flags & SEC_LOAD) != 0) | |
7582 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7583 | else | |
7584 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7585 | if (section->lma - segment->p_paddr != seg_off) | |
7586 | map->p_paddr_valid = FALSE; | |
7587 | } | |
53020534 L |
7588 | if (isec == section_count) |
7589 | break; | |
7590 | } | |
84d1d650 L |
7591 | } |
7592 | } | |
7593 | ||
5d695627 AM |
7594 | if (section_count == 0) |
7595 | map->p_vaddr_offset = segment->p_vaddr; | |
30fe1832 AM |
7596 | else if (map->p_paddr_valid) |
7597 | { | |
7598 | /* Account for padding before the first section in the segment. */ | |
7599 | bfd_vma hdr_size = 0; | |
7600 | if (map->includes_filehdr) | |
7601 | hdr_size = iehdr->e_ehsize; | |
7602 | if (map->includes_phdrs) | |
7603 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7604 | ||
7605 | map->p_vaddr_offset = (map->p_paddr + hdr_size | |
7606 | - (lowest_section ? lowest_section->lma : 0)); | |
7607 | } | |
a76e6f2f | 7608 | |
84d1d650 L |
7609 | map->count = section_count; |
7610 | *pointer_to_map = map; | |
7611 | pointer_to_map = &map->next; | |
7612 | } | |
7613 | ||
12bd6957 | 7614 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7615 | return TRUE; |
7616 | } | |
7617 | ||
7618 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7619 | information. */ | |
7620 | ||
7621 | static bfd_boolean | |
7622 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7623 | { | |
84d1d650 L |
7624 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7625 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7626 | return TRUE; | |
7627 | ||
7628 | if (elf_tdata (ibfd)->phdr == NULL) | |
7629 | return TRUE; | |
7630 | ||
7631 | if (ibfd->xvec == obfd->xvec) | |
7632 | { | |
cb3ff1e5 NC |
7633 | /* Check to see if any sections in the input BFD |
7634 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7635 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7636 | asection *section, *osec; |
7637 | unsigned int i, num_segments; | |
7638 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7639 | const struct elf_backend_data *bed; |
7640 | ||
7641 | bed = get_elf_backend_data (ibfd); | |
7642 | ||
7643 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7644 | if (bed->want_p_paddr_set_to_zero) | |
7645 | goto rewrite; | |
84d1d650 L |
7646 | |
7647 | /* Initialize the segment mark field. */ | |
7648 | for (section = obfd->sections; section != NULL; | |
7649 | section = section->next) | |
7650 | section->segment_mark = FALSE; | |
7651 | ||
7652 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7653 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7654 | i < num_segments; | |
7655 | i++, segment++) | |
7656 | { | |
5f6999aa NC |
7657 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7658 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7659 | which severly confuses things, so always regenerate the segment | |
7660 | map in this case. */ | |
7661 | if (segment->p_paddr == 0 | |
7662 | && segment->p_memsz == 0 | |
7663 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7664 | goto rewrite; |
5f6999aa | 7665 | |
84d1d650 L |
7666 | for (section = ibfd->sections; |
7667 | section != NULL; section = section->next) | |
7668 | { | |
7669 | /* We mark the output section so that we know it comes | |
7670 | from the input BFD. */ | |
7671 | osec = section->output_section; | |
7672 | if (osec) | |
7673 | osec->segment_mark = TRUE; | |
7674 | ||
7675 | /* Check if this section is covered by the segment. */ | |
7676 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7677 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7678 | { |
7679 | /* FIXME: Check if its output section is changed or | |
7680 | removed. What else do we need to check? */ | |
7681 | if (osec == NULL | |
7682 | || section->flags != osec->flags | |
7683 | || section->lma != osec->lma | |
7684 | || section->vma != osec->vma | |
7685 | || section->size != osec->size | |
7686 | || section->rawsize != osec->rawsize | |
7687 | || section->alignment_power != osec->alignment_power) | |
7688 | goto rewrite; | |
7689 | } | |
7690 | } | |
7691 | } | |
7692 | ||
cb3ff1e5 | 7693 | /* Check to see if any output section do not come from the |
84d1d650 L |
7694 | input BFD. */ |
7695 | for (section = obfd->sections; section != NULL; | |
7696 | section = section->next) | |
7697 | { | |
535b785f | 7698 | if (!section->segment_mark) |
84d1d650 L |
7699 | goto rewrite; |
7700 | else | |
7701 | section->segment_mark = FALSE; | |
7702 | } | |
7703 | ||
7704 | return copy_elf_program_header (ibfd, obfd); | |
7705 | } | |
7706 | ||
7707 | rewrite: | |
f1d85785 L |
7708 | if (ibfd->xvec == obfd->xvec) |
7709 | { | |
7710 | /* When rewriting program header, set the output maxpagesize to | |
7711 | the maximum alignment of input PT_LOAD segments. */ | |
7712 | Elf_Internal_Phdr *segment; | |
7713 | unsigned int i; | |
7714 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7715 | bfd_vma maxpagesize = 0; | |
7716 | ||
7717 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7718 | i < num_segments; | |
7719 | i++, segment++) | |
7720 | if (segment->p_type == PT_LOAD | |
7721 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7722 | { |
7723 | /* PR 17512: file: f17299af. */ | |
7724 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7725 | /* xgettext:c-format */ |
2dcf00ce AM |
7726 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7727 | PRIx64 " is too large"), | |
7728 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7729 | else |
7730 | maxpagesize = segment->p_align; | |
7731 | } | |
f1d85785 L |
7732 | |
7733 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7734 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7735 | } | |
7736 | ||
84d1d650 L |
7737 | return rewrite_elf_program_header (ibfd, obfd); |
7738 | } | |
7739 | ||
ccd2ec6a L |
7740 | /* Initialize private output section information from input section. */ |
7741 | ||
7742 | bfd_boolean | |
7743 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7744 | asection *isec, | |
7745 | bfd *obfd, | |
7746 | asection *osec, | |
7747 | struct bfd_link_info *link_info) | |
7748 | ||
7749 | { | |
7750 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7751 | bfd_boolean final_link = (link_info != NULL |
7752 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7753 | |
7754 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7755 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7756 | return TRUE; | |
7757 | ||
ba85c43e NC |
7758 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7759 | ||
dfa7b0b8 AM |
7760 | /* For objcopy and relocatable link, don't copy the output ELF |
7761 | section type from input if the output BFD section flags have been | |
7762 | set to something different. For a final link allow some flags | |
7763 | that the linker clears to differ. */ | |
42bb2e33 | 7764 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7765 | && (osec->flags == isec->flags |
7766 | || (final_link | |
7767 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7768 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7769 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7770 | |
7771 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7772 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7773 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7774 | |
a91e1603 | 7775 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7776 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7777 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7778 | elf_section_data (osec)->this_hdr.sh_info |
7779 | = elf_section_data (isec)->this_hdr.sh_info; | |
7780 | ||
ccd2ec6a L |
7781 | /* Set things up for objcopy and relocatable link. The output |
7782 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7783 | to the input group members. Ignore linker created group section. | |
7784 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7785 | if ((link_info == NULL |
7786 | || !link_info->resolve_section_groups) | |
7787 | && (elf_sec_group (isec) == NULL | |
7788 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7789 | { |
7bdf4127 AB |
7790 | if (elf_section_flags (isec) & SHF_GROUP) |
7791 | elf_section_flags (osec) |= SHF_GROUP; | |
7792 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7793 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7794 | } |
7795 | ||
7bdf4127 AB |
7796 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7797 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7798 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7799 | & SHF_COMPRESSED); | |
7800 | ||
ccd2ec6a L |
7801 | ihdr = &elf_section_data (isec)->this_hdr; |
7802 | ||
7803 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7804 | don't use the output section of the linked-to section since it | |
7805 | may be NULL at this point. */ | |
7806 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7807 | { | |
7808 | ohdr = &elf_section_data (osec)->this_hdr; | |
7809 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7810 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7811 | } | |
7812 | ||
7813 | osec->use_rela_p = isec->use_rela_p; | |
7814 | ||
7815 | return TRUE; | |
7816 | } | |
7817 | ||
252b5132 RH |
7818 | /* Copy private section information. This copies over the entsize |
7819 | field, and sometimes the info field. */ | |
7820 | ||
b34976b6 | 7821 | bfd_boolean |
217aa764 AM |
7822 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7823 | asection *isec, | |
7824 | bfd *obfd, | |
7825 | asection *osec) | |
252b5132 RH |
7826 | { |
7827 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7828 | ||
7829 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7830 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7831 | return TRUE; |
252b5132 | 7832 | |
252b5132 RH |
7833 | ihdr = &elf_section_data (isec)->this_hdr; |
7834 | ohdr = &elf_section_data (osec)->this_hdr; | |
7835 | ||
7836 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7837 | ||
7838 | if (ihdr->sh_type == SHT_SYMTAB | |
7839 | || ihdr->sh_type == SHT_DYNSYM | |
7840 | || ihdr->sh_type == SHT_GNU_verneed | |
7841 | || ihdr->sh_type == SHT_GNU_verdef) | |
7842 | ohdr->sh_info = ihdr->sh_info; | |
7843 | ||
ccd2ec6a L |
7844 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7845 | NULL); | |
252b5132 RH |
7846 | } |
7847 | ||
d0bf826b AM |
7848 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7849 | necessary if we are removing either the SHT_GROUP section or any of | |
7850 | the group member sections. DISCARDED is the value that a section's | |
7851 | output_section has if the section will be discarded, NULL when this | |
7852 | function is called from objcopy, bfd_abs_section_ptr when called | |
7853 | from the linker. */ | |
80fccad2 BW |
7854 | |
7855 | bfd_boolean | |
d0bf826b | 7856 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7857 | { |
30288845 AM |
7858 | asection *isec; |
7859 | ||
30288845 | 7860 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7861 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7862 | { |
7863 | asection *first = elf_next_in_group (isec); | |
7864 | asection *s = first; | |
d0bf826b AM |
7865 | bfd_size_type removed = 0; |
7866 | ||
30288845 AM |
7867 | while (s != NULL) |
7868 | { | |
415f38a6 AM |
7869 | /* If this member section is being output but the |
7870 | SHT_GROUP section is not, then clear the group info | |
7871 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7872 | if (s->output_section != discarded |
7873 | && isec->output_section == discarded) | |
30288845 AM |
7874 | { |
7875 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7876 | elf_group_name (s->output_section) = NULL; | |
7877 | } | |
415f38a6 AM |
7878 | /* Conversely, if the member section is not being output |
7879 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7880 | else if (s->output_section == discarded |
7881 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7882 | { |
7883 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7884 | removed += 4; | |
7885 | if (elf_sec->rel.hdr != NULL | |
7886 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7887 | removed += 4; | |
7888 | if (elf_sec->rela.hdr != NULL | |
7889 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7890 | removed += 4; | |
7891 | } | |
30288845 AM |
7892 | s = elf_next_in_group (s); |
7893 | if (s == first) | |
7894 | break; | |
7895 | } | |
d0bf826b AM |
7896 | if (removed != 0) |
7897 | { | |
7898 | if (discarded != NULL) | |
7899 | { | |
7900 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7901 | adjust the input section size. */ |
d0bf826b AM |
7902 | if (isec->rawsize == 0) |
7903 | isec->rawsize = isec->size; | |
7904 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7905 | if (isec->size <= 4) |
7906 | { | |
7907 | isec->size = 0; | |
7908 | isec->flags |= SEC_EXCLUDE; | |
7909 | } | |
d0bf826b AM |
7910 | } |
7911 | else | |
7912 | { | |
7913 | /* Adjust the output section size when called from | |
7914 | objcopy. */ | |
7915 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7916 | if (isec->output_section->size <= 4) |
7917 | { | |
7918 | isec->output_section->size = 0; | |
7919 | isec->output_section->flags |= SEC_EXCLUDE; | |
7920 | } | |
d0bf826b AM |
7921 | } |
7922 | } | |
30288845 AM |
7923 | } |
7924 | ||
80fccad2 BW |
7925 | return TRUE; |
7926 | } | |
7927 | ||
d0bf826b AM |
7928 | /* Copy private header information. */ |
7929 | ||
7930 | bfd_boolean | |
7931 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7932 | { | |
7933 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7934 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7935 | return TRUE; | |
7936 | ||
7937 | /* Copy over private BFD data if it has not already been copied. | |
7938 | This must be done here, rather than in the copy_private_bfd_data | |
7939 | entry point, because the latter is called after the section | |
7940 | contents have been set, which means that the program headers have | |
7941 | already been worked out. */ | |
12bd6957 | 7942 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7943 | { |
7944 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7945 | return FALSE; | |
7946 | } | |
7947 | ||
7948 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7949 | } | |
7950 | ||
252b5132 RH |
7951 | /* Copy private symbol information. If this symbol is in a section |
7952 | which we did not map into a BFD section, try to map the section | |
7953 | index correctly. We use special macro definitions for the mapped | |
7954 | section indices; these definitions are interpreted by the | |
7955 | swap_out_syms function. */ | |
7956 | ||
9ad5cbcf AM |
7957 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7958 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7959 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7960 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7961 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7962 | |
b34976b6 | 7963 | bfd_boolean |
217aa764 AM |
7964 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7965 | asymbol *isymarg, | |
7966 | bfd *obfd, | |
7967 | asymbol *osymarg) | |
252b5132 RH |
7968 | { |
7969 | elf_symbol_type *isym, *osym; | |
7970 | ||
7971 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7972 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7973 | return TRUE; |
252b5132 RH |
7974 | |
7975 | isym = elf_symbol_from (ibfd, isymarg); | |
7976 | osym = elf_symbol_from (obfd, osymarg); | |
7977 | ||
7978 | if (isym != NULL | |
8424d8f5 | 7979 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7980 | && osym != NULL |
7981 | && bfd_is_abs_section (isym->symbol.section)) | |
7982 | { | |
7983 | unsigned int shndx; | |
7984 | ||
7985 | shndx = isym->internal_elf_sym.st_shndx; | |
7986 | if (shndx == elf_onesymtab (ibfd)) | |
7987 | shndx = MAP_ONESYMTAB; | |
7988 | else if (shndx == elf_dynsymtab (ibfd)) | |
7989 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7990 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7991 | shndx = MAP_STRTAB; |
12bd6957 | 7992 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7993 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7994 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7995 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7996 | osym->internal_elf_sym.st_shndx = shndx; |
7997 | } | |
7998 | ||
b34976b6 | 7999 | return TRUE; |
252b5132 RH |
8000 | } |
8001 | ||
8002 | /* Swap out the symbols. */ | |
8003 | ||
b34976b6 | 8004 | static bfd_boolean |
217aa764 | 8005 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8006 | struct elf_strtab_hash **sttp, |
217aa764 | 8007 | int relocatable_p) |
252b5132 | 8008 | { |
9c5bfbb7 | 8009 | const struct elf_backend_data *bed; |
1f4361a7 | 8010 | unsigned int symcount; |
079e9a2f | 8011 | asymbol **syms; |
ef10c3ac | 8012 | struct elf_strtab_hash *stt; |
079e9a2f | 8013 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8014 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8015 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8016 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8017 | bfd_byte *outbound_syms; |
8018 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
8019 | unsigned long outbound_syms_index; |
8020 | unsigned long outbound_shndx_index; | |
1f4361a7 | 8021 | unsigned int idx; |
12bd6957 | 8022 | unsigned int num_locals; |
1f4361a7 | 8023 | size_t amt; |
174fd7f9 | 8024 | bfd_boolean name_local_sections; |
252b5132 | 8025 | |
12bd6957 | 8026 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 8027 | return FALSE; |
252b5132 | 8028 | |
c044fabd | 8029 | /* Dump out the symtabs. */ |
ef10c3ac | 8030 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8031 | if (stt == NULL) |
b34976b6 | 8032 | return FALSE; |
252b5132 | 8033 | |
079e9a2f AM |
8034 | bed = get_elf_backend_data (abfd); |
8035 | symcount = bfd_get_symcount (abfd); | |
8036 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8037 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8038 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8039 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8040 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8041 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8042 | |
8043 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8044 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8045 | ||
ef10c3ac | 8046 | /* Allocate buffer to swap out the .strtab section. */ |
1f4361a7 AM |
8047 | if (_bfd_mul_overflow (symcount + 1, sizeof (*symstrtab), &amt) |
8048 | || (symstrtab = (struct elf_sym_strtab *) bfd_malloc (amt)) == NULL) | |
ef10c3ac | 8049 | { |
1f4361a7 | 8050 | bfd_set_error (bfd_error_no_memory); |
ef10c3ac L |
8051 | _bfd_elf_strtab_free (stt); |
8052 | return FALSE; | |
8053 | } | |
8054 | ||
1f4361a7 AM |
8055 | if (_bfd_mul_overflow (symcount + 1, bed->s->sizeof_sym, &amt) |
8056 | || (outbound_syms = (bfd_byte *) bfd_alloc (abfd, amt)) == NULL) | |
5ed6aba4 | 8057 | { |
1f4361a7 AM |
8058 | error_no_mem: |
8059 | bfd_set_error (bfd_error_no_memory); | |
8060 | error_return: | |
ef10c3ac | 8061 | free (symstrtab); |
1f4361a7 | 8062 | _bfd_elf_strtab_free (stt); |
5ed6aba4 NC |
8063 | return FALSE; |
8064 | } | |
217aa764 | 8065 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8066 | outbound_syms_index = 0; |
252b5132 | 8067 | |
9ad5cbcf | 8068 | outbound_shndx = NULL; |
ef10c3ac | 8069 | outbound_shndx_index = 0; |
6a40cf0c NC |
8070 | |
8071 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8072 | { |
6a40cf0c NC |
8073 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8074 | if (symtab_shndx_hdr->sh_name != 0) | |
8075 | { | |
1f4361a7 AM |
8076 | if (_bfd_mul_overflow (symcount + 1, |
8077 | sizeof (Elf_External_Sym_Shndx), &amt)) | |
8078 | goto error_no_mem; | |
8079 | outbound_shndx = (bfd_byte *) bfd_zalloc (abfd, amt); | |
6a40cf0c NC |
8080 | if (outbound_shndx == NULL) |
8081 | goto error_return; | |
5ed6aba4 | 8082 | |
6a40cf0c NC |
8083 | symtab_shndx_hdr->contents = outbound_shndx; |
8084 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8085 | symtab_shndx_hdr->sh_size = amt; | |
8086 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8087 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8088 | } | |
8089 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8090 | } |
8091 | ||
589e6347 | 8092 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8093 | { |
8094 | /* Fill in zeroth symbol and swap it out. */ | |
8095 | Elf_Internal_Sym sym; | |
8096 | sym.st_name = 0; | |
8097 | sym.st_value = 0; | |
8098 | sym.st_size = 0; | |
8099 | sym.st_info = 0; | |
8100 | sym.st_other = 0; | |
8101 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8102 | sym.st_target_internal = 0; |
ef10c3ac L |
8103 | symstrtab[0].sym = sym; |
8104 | symstrtab[0].dest_index = outbound_syms_index; | |
8105 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8106 | outbound_syms_index++; | |
9ad5cbcf | 8107 | if (outbound_shndx != NULL) |
ef10c3ac | 8108 | outbound_shndx_index++; |
079e9a2f | 8109 | } |
252b5132 | 8110 | |
174fd7f9 RS |
8111 | name_local_sections |
8112 | = (bed->elf_backend_name_local_section_symbols | |
8113 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8114 | ||
079e9a2f | 8115 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8116 | for (idx = 0; idx < symcount;) |
252b5132 | 8117 | { |
252b5132 | 8118 | Elf_Internal_Sym sym; |
079e9a2f AM |
8119 | bfd_vma value = syms[idx]->value; |
8120 | elf_symbol_type *type_ptr; | |
8121 | flagword flags = syms[idx]->flags; | |
8122 | int type; | |
252b5132 | 8123 | |
174fd7f9 RS |
8124 | if (!name_local_sections |
8125 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8126 | { |
8127 | /* Local section symbols have no name. */ | |
ef10c3ac | 8128 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8129 | } |
8130 | else | |
8131 | { | |
ef10c3ac L |
8132 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8133 | to get the final offset for st_name. */ | |
8134 | sym.st_name | |
8135 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
8136 | FALSE); | |
079e9a2f | 8137 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8138 | goto error_return; |
079e9a2f | 8139 | } |
252b5132 | 8140 | |
079e9a2f | 8141 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 8142 | |
079e9a2f AM |
8143 | if ((flags & BSF_SECTION_SYM) == 0 |
8144 | && bfd_is_com_section (syms[idx]->section)) | |
8145 | { | |
8146 | /* ELF common symbols put the alignment into the `value' field, | |
8147 | and the size into the `size' field. This is backwards from | |
8148 | how BFD handles it, so reverse it here. */ | |
8149 | sym.st_size = value; | |
8150 | if (type_ptr == NULL | |
8151 | || type_ptr->internal_elf_sym.st_value == 0) | |
8152 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8153 | else | |
8154 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8155 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8156 | (abfd, syms[idx]->section); | |
8157 | } | |
8158 | else | |
8159 | { | |
8160 | asection *sec = syms[idx]->section; | |
cb33740c | 8161 | unsigned int shndx; |
252b5132 | 8162 | |
079e9a2f AM |
8163 | if (sec->output_section) |
8164 | { | |
8165 | value += sec->output_offset; | |
8166 | sec = sec->output_section; | |
8167 | } | |
589e6347 | 8168 | |
079e9a2f AM |
8169 | /* Don't add in the section vma for relocatable output. */ |
8170 | if (! relocatable_p) | |
8171 | value += sec->vma; | |
8172 | sym.st_value = value; | |
8173 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8174 | ||
8175 | if (bfd_is_abs_section (sec) | |
8176 | && type_ptr != NULL | |
8177 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8178 | { | |
8179 | /* This symbol is in a real ELF section which we did | |
8180 | not create as a BFD section. Undo the mapping done | |
8181 | by copy_private_symbol_data. */ | |
8182 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8183 | switch (shndx) | |
8184 | { | |
8185 | case MAP_ONESYMTAB: | |
8186 | shndx = elf_onesymtab (abfd); | |
8187 | break; | |
8188 | case MAP_DYNSYMTAB: | |
8189 | shndx = elf_dynsymtab (abfd); | |
8190 | break; | |
8191 | case MAP_STRTAB: | |
12bd6957 | 8192 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8193 | break; |
8194 | case MAP_SHSTRTAB: | |
12bd6957 | 8195 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8196 | break; |
9ad5cbcf | 8197 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8198 | if (elf_symtab_shndx_list (abfd)) |
8199 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8200 | break; |
00e49dff NC |
8201 | case SHN_COMMON: |
8202 | case SHN_ABS: | |
15bc576a | 8203 | shndx = SHN_ABS; |
079e9a2f | 8204 | break; |
00e49dff NC |
8205 | default: |
8206 | if (shndx >= SHN_LOPROC && shndx <= SHN_HIOS) | |
8207 | { | |
8208 | if (bed->symbol_section_index) | |
8209 | shndx = bed->symbol_section_index (abfd, type_ptr); | |
8210 | /* Otherwise just leave the index alone. */ | |
8211 | } | |
8212 | else | |
8213 | { | |
8214 | if (shndx > SHN_HIOS && shndx < SHN_HIRESERVE) | |
8215 | _bfd_error_handler (_("%pB: \ | |
8216 | Unable to handle section index %x in ELF symbol. Using ABS instead."), | |
8217 | abfd, shndx); | |
8218 | shndx = SHN_ABS; | |
8219 | } | |
8220 | break; | |
079e9a2f AM |
8221 | } |
8222 | } | |
8223 | else | |
8224 | { | |
8225 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8226 | |
cb33740c | 8227 | if (shndx == SHN_BAD) |
079e9a2f AM |
8228 | { |
8229 | asection *sec2; | |
8230 | ||
8231 | /* Writing this would be a hell of a lot easier if | |
8232 | we had some decent documentation on bfd, and | |
8233 | knew what to expect of the library, and what to | |
8234 | demand of applications. For example, it | |
8235 | appears that `objcopy' might not set the | |
8236 | section of a symbol to be a section that is | |
8237 | actually in the output file. */ | |
8238 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8239 | if (sec2 != NULL) |
8240 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8241 | if (shndx == SHN_BAD) | |
589e6347 | 8242 | { |
695344c0 | 8243 | /* xgettext:c-format */ |
9793eb77 AM |
8244 | _bfd_error_handler |
8245 | (_("unable to find equivalent output section" | |
8246 | " for symbol '%s' from section '%s'"), | |
8247 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8248 | sec->name); | |
811072d8 | 8249 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8250 | goto error_return; |
589e6347 | 8251 | } |
079e9a2f AM |
8252 | } |
8253 | } | |
252b5132 | 8254 | |
079e9a2f AM |
8255 | sym.st_shndx = shndx; |
8256 | } | |
252b5132 | 8257 | |
13ae64f3 JJ |
8258 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8259 | type = STT_TLS; | |
d8045f23 NC |
8260 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8261 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8262 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8263 | type = STT_FUNC; |
8264 | else if ((flags & BSF_OBJECT) != 0) | |
8265 | type = STT_OBJECT; | |
d9352518 DB |
8266 | else if ((flags & BSF_RELC) != 0) |
8267 | type = STT_RELC; | |
8268 | else if ((flags & BSF_SRELC) != 0) | |
8269 | type = STT_SRELC; | |
079e9a2f AM |
8270 | else |
8271 | type = STT_NOTYPE; | |
252b5132 | 8272 | |
13ae64f3 JJ |
8273 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8274 | type = STT_TLS; | |
8275 | ||
589e6347 | 8276 | /* Processor-specific types. */ |
079e9a2f AM |
8277 | if (type_ptr != NULL |
8278 | && bed->elf_backend_get_symbol_type) | |
8279 | type = ((*bed->elf_backend_get_symbol_type) | |
8280 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8281 | |
079e9a2f AM |
8282 | if (flags & BSF_SECTION_SYM) |
8283 | { | |
8284 | if (flags & BSF_GLOBAL) | |
8285 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8286 | else | |
8287 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8288 | } | |
8289 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8290 | { |
b8871f35 L |
8291 | if (type != STT_TLS) |
8292 | { | |
8293 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8294 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8295 | ? STT_COMMON : STT_OBJECT); | |
8296 | else | |
8297 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8298 | ? STT_COMMON : STT_OBJECT); | |
8299 | } | |
8300 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8301 | } |
079e9a2f AM |
8302 | else if (bfd_is_und_section (syms[idx]->section)) |
8303 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8304 | ? STB_WEAK | |
8305 | : STB_GLOBAL), | |
8306 | type); | |
8307 | else if (flags & BSF_FILE) | |
8308 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8309 | else | |
8310 | { | |
8311 | int bind = STB_LOCAL; | |
252b5132 | 8312 | |
079e9a2f AM |
8313 | if (flags & BSF_LOCAL) |
8314 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8315 | else if (flags & BSF_GNU_UNIQUE) |
8316 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8317 | else if (flags & BSF_WEAK) |
8318 | bind = STB_WEAK; | |
8319 | else if (flags & BSF_GLOBAL) | |
8320 | bind = STB_GLOBAL; | |
252b5132 | 8321 | |
079e9a2f AM |
8322 | sym.st_info = ELF_ST_INFO (bind, type); |
8323 | } | |
252b5132 | 8324 | |
079e9a2f | 8325 | if (type_ptr != NULL) |
35fc36a8 RS |
8326 | { |
8327 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8328 | sym.st_target_internal | |
8329 | = type_ptr->internal_elf_sym.st_target_internal; | |
8330 | } | |
079e9a2f | 8331 | else |
35fc36a8 RS |
8332 | { |
8333 | sym.st_other = 0; | |
8334 | sym.st_target_internal = 0; | |
8335 | } | |
252b5132 | 8336 | |
ef10c3ac L |
8337 | idx++; |
8338 | symstrtab[idx].sym = sym; | |
8339 | symstrtab[idx].dest_index = outbound_syms_index; | |
8340 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8341 | ||
8342 | outbound_syms_index++; | |
9ad5cbcf | 8343 | if (outbound_shndx != NULL) |
ef10c3ac L |
8344 | outbound_shndx_index++; |
8345 | } | |
8346 | ||
8347 | /* Finalize the .strtab section. */ | |
8348 | _bfd_elf_strtab_finalize (stt); | |
8349 | ||
8350 | /* Swap out the .strtab section. */ | |
8351 | for (idx = 0; idx <= symcount; idx++) | |
8352 | { | |
8353 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8354 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8355 | elfsym->sym.st_name = 0; | |
8356 | else | |
8357 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8358 | elfsym->sym.st_name); | |
8359 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8360 | (outbound_syms | |
8361 | + (elfsym->dest_index | |
8362 | * bed->s->sizeof_sym)), | |
8363 | (outbound_shndx | |
8364 | + (elfsym->destshndx_index | |
8365 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8366 | } |
ef10c3ac | 8367 | free (symstrtab); |
252b5132 | 8368 | |
079e9a2f | 8369 | *sttp = stt; |
ef10c3ac | 8370 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8371 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8372 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8373 | symstrtab_hdr->sh_addr = 0; |
8374 | symstrtab_hdr->sh_entsize = 0; | |
8375 | symstrtab_hdr->sh_link = 0; | |
8376 | symstrtab_hdr->sh_info = 0; | |
8377 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8378 | |
b34976b6 | 8379 | return TRUE; |
252b5132 RH |
8380 | } |
8381 | ||
8382 | /* Return the number of bytes required to hold the symtab vector. | |
8383 | ||
8384 | Note that we base it on the count plus 1, since we will null terminate | |
8385 | the vector allocated based on this size. However, the ELF symbol table | |
8386 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8387 | ||
8388 | long | |
217aa764 | 8389 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8390 | { |
3a551c7a | 8391 | bfd_size_type symcount; |
252b5132 RH |
8392 | long symtab_size; |
8393 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8394 | ||
8395 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8396 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8397 | { | |
8398 | bfd_set_error (bfd_error_file_too_big); | |
8399 | return -1; | |
8400 | } | |
b99d1833 AM |
8401 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8402 | if (symcount > 0) | |
8403 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8404 | |
8405 | return symtab_size; | |
8406 | } | |
8407 | ||
8408 | long | |
217aa764 | 8409 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8410 | { |
3a551c7a | 8411 | bfd_size_type symcount; |
252b5132 RH |
8412 | long symtab_size; |
8413 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8414 | ||
8415 | if (elf_dynsymtab (abfd) == 0) | |
8416 | { | |
8417 | bfd_set_error (bfd_error_invalid_operation); | |
8418 | return -1; | |
8419 | } | |
8420 | ||
8421 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8422 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8423 | { | |
8424 | bfd_set_error (bfd_error_file_too_big); | |
8425 | return -1; | |
8426 | } | |
b99d1833 AM |
8427 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8428 | if (symcount > 0) | |
8429 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8430 | |
8431 | return symtab_size; | |
8432 | } | |
8433 | ||
8434 | long | |
217aa764 AM |
8435 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8436 | sec_ptr asect) | |
252b5132 | 8437 | { |
242a1159 | 8438 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8439 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8440 | { | |
8441 | bfd_set_error (bfd_error_file_too_big); | |
8442 | return -1; | |
8443 | } | |
242a1159 | 8444 | #endif |
252b5132 RH |
8445 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8446 | } | |
8447 | ||
8448 | /* Canonicalize the relocs. */ | |
8449 | ||
8450 | long | |
217aa764 AM |
8451 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8452 | sec_ptr section, | |
8453 | arelent **relptr, | |
8454 | asymbol **symbols) | |
252b5132 RH |
8455 | { |
8456 | arelent *tblptr; | |
8457 | unsigned int i; | |
9c5bfbb7 | 8458 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8459 | |
b34976b6 | 8460 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8461 | return -1; |
8462 | ||
8463 | tblptr = section->relocation; | |
8464 | for (i = 0; i < section->reloc_count; i++) | |
8465 | *relptr++ = tblptr++; | |
8466 | ||
8467 | *relptr = NULL; | |
8468 | ||
8469 | return section->reloc_count; | |
8470 | } | |
8471 | ||
8472 | long | |
6cee3f79 | 8473 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8474 | { |
9c5bfbb7 | 8475 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8476 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8477 | |
8478 | if (symcount >= 0) | |
ed48ec2e | 8479 | abfd->symcount = symcount; |
252b5132 RH |
8480 | return symcount; |
8481 | } | |
8482 | ||
8483 | long | |
217aa764 AM |
8484 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8485 | asymbol **allocation) | |
252b5132 | 8486 | { |
9c5bfbb7 | 8487 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8488 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8489 | |
8490 | if (symcount >= 0) | |
ed48ec2e | 8491 | abfd->dynsymcount = symcount; |
1f70368c | 8492 | return symcount; |
252b5132 RH |
8493 | } |
8494 | ||
8615f3f2 AM |
8495 | /* Return the size required for the dynamic reloc entries. Any loadable |
8496 | section that was actually installed in the BFD, and has type SHT_REL | |
8497 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8498 | dynamic reloc section. */ | |
252b5132 RH |
8499 | |
8500 | long | |
217aa764 | 8501 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8502 | { |
3a551c7a | 8503 | bfd_size_type count; |
252b5132 RH |
8504 | asection *s; |
8505 | ||
8506 | if (elf_dynsymtab (abfd) == 0) | |
8507 | { | |
8508 | bfd_set_error (bfd_error_invalid_operation); | |
8509 | return -1; | |
8510 | } | |
8511 | ||
3a551c7a | 8512 | count = 1; |
252b5132 | 8513 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8514 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8515 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8516 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a AM |
8517 | { |
8518 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; | |
8519 | if (count > LONG_MAX / sizeof (arelent *)) | |
8520 | { | |
8521 | bfd_set_error (bfd_error_file_too_big); | |
8522 | return -1; | |
8523 | } | |
8524 | } | |
8525 | return count * sizeof (arelent *); | |
252b5132 RH |
8526 | } |
8527 | ||
8615f3f2 AM |
8528 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8529 | dynamic relocations as a single block, although they are actually | |
8530 | associated with particular sections; the interface, which was | |
8531 | designed for SunOS style shared libraries, expects that there is only | |
8532 | one set of dynamic relocs. Any loadable section that was actually | |
8533 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8534 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8535 | |
8536 | long | |
217aa764 AM |
8537 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8538 | arelent **storage, | |
8539 | asymbol **syms) | |
252b5132 | 8540 | { |
217aa764 | 8541 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8542 | asection *s; |
8543 | long ret; | |
8544 | ||
8545 | if (elf_dynsymtab (abfd) == 0) | |
8546 | { | |
8547 | bfd_set_error (bfd_error_invalid_operation); | |
8548 | return -1; | |
8549 | } | |
8550 | ||
8551 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8552 | ret = 0; | |
8553 | for (s = abfd->sections; s != NULL; s = s->next) | |
8554 | { | |
266b05cf | 8555 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8556 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8557 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8558 | { | |
8559 | arelent *p; | |
8560 | long count, i; | |
8561 | ||
b34976b6 | 8562 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8563 | return -1; |
eea6121a | 8564 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8565 | p = s->relocation; |
8566 | for (i = 0; i < count; i++) | |
8567 | *storage++ = p++; | |
8568 | ret += count; | |
8569 | } | |
8570 | } | |
8571 | ||
8572 | *storage = NULL; | |
8573 | ||
8574 | return ret; | |
8575 | } | |
8576 | \f | |
8577 | /* Read in the version information. */ | |
8578 | ||
b34976b6 | 8579 | bfd_boolean |
fc0e6df6 | 8580 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8581 | { |
8582 | bfd_byte *contents = NULL; | |
fc0e6df6 | 8583 | unsigned int freeidx = 0; |
1f4361a7 | 8584 | size_t amt; |
fc0e6df6 PB |
8585 | |
8586 | if (elf_dynverref (abfd) != 0) | |
8587 | { | |
8588 | Elf_Internal_Shdr *hdr; | |
8589 | Elf_External_Verneed *everneed; | |
8590 | Elf_Internal_Verneed *iverneed; | |
8591 | unsigned int i; | |
d0fb9a8d | 8592 | bfd_byte *contents_end; |
fc0e6df6 PB |
8593 | |
8594 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8595 | ||
bd61e135 AM |
8596 | if (hdr->sh_info == 0 |
8597 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8598 | { |
601a03ba | 8599 | error_return_bad_verref: |
4eca0228 | 8600 | _bfd_error_handler |
871b3ab2 | 8601 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8602 | bfd_set_error (bfd_error_bad_value); |
d0fb9a8d JJ |
8603 | error_return_verref: |
8604 | elf_tdata (abfd)->verref = NULL; | |
8605 | elf_tdata (abfd)->cverrefs = 0; | |
8606 | goto error_return; | |
8607 | } | |
601a03ba | 8608 | |
2bb3687b AM |
8609 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
8610 | goto error_return_verref; | |
8611 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); | |
8612 | if (contents == NULL) | |
d0fb9a8d | 8613 | goto error_return_verref; |
fc0e6df6 | 8614 | |
1f4361a7 AM |
8615 | if (_bfd_mul_overflow (hdr->sh_info, sizeof (Elf_Internal_Verneed), &amt)) |
8616 | { | |
8617 | bfd_set_error (bfd_error_file_too_big); | |
8618 | goto error_return_verref; | |
8619 | } | |
8620 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt); | |
601a03ba | 8621 | if (elf_tdata (abfd)->verref == NULL) |
d0fb9a8d JJ |
8622 | goto error_return_verref; |
8623 | ||
8624 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8625 | == sizeof (Elf_External_Vernaux)); | |
8626 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8627 | everneed = (Elf_External_Verneed *) contents; |
8628 | iverneed = elf_tdata (abfd)->verref; | |
8629 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8630 | { | |
8631 | Elf_External_Vernaux *evernaux; | |
8632 | Elf_Internal_Vernaux *ivernaux; | |
8633 | unsigned int j; | |
8634 | ||
8635 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8636 | ||
8637 | iverneed->vn_bfd = abfd; | |
8638 | ||
8639 | iverneed->vn_filename = | |
8640 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8641 | iverneed->vn_file); | |
8642 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8643 | goto error_return_bad_verref; |
fc0e6df6 | 8644 | |
d0fb9a8d JJ |
8645 | if (iverneed->vn_cnt == 0) |
8646 | iverneed->vn_auxptr = NULL; | |
8647 | else | |
8648 | { | |
1f4361a7 AM |
8649 | if (_bfd_mul_overflow (iverneed->vn_cnt, |
8650 | sizeof (Elf_Internal_Vernaux), &amt)) | |
8651 | { | |
8652 | bfd_set_error (bfd_error_file_too_big); | |
8653 | goto error_return_verref; | |
8654 | } | |
a50b1753 | 8655 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
1f4361a7 | 8656 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8657 | if (iverneed->vn_auxptr == NULL) |
8658 | goto error_return_verref; | |
8659 | } | |
8660 | ||
8661 | if (iverneed->vn_aux | |
8662 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8663 | goto error_return_bad_verref; |
fc0e6df6 PB |
8664 | |
8665 | evernaux = ((Elf_External_Vernaux *) | |
8666 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8667 | ivernaux = iverneed->vn_auxptr; | |
8668 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8669 | { | |
8670 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8671 | ||
8672 | ivernaux->vna_nodename = | |
8673 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8674 | ivernaux->vna_name); | |
8675 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8676 | goto error_return_bad_verref; |
fc0e6df6 | 8677 | |
25ff461f AM |
8678 | if (ivernaux->vna_other > freeidx) |
8679 | freeidx = ivernaux->vna_other; | |
8680 | ||
8681 | ivernaux->vna_nextptr = NULL; | |
8682 | if (ivernaux->vna_next == 0) | |
8683 | { | |
8684 | iverneed->vn_cnt = j + 1; | |
8685 | break; | |
8686 | } | |
fc0e6df6 PB |
8687 | if (j + 1 < iverneed->vn_cnt) |
8688 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8689 | |
d0fb9a8d JJ |
8690 | if (ivernaux->vna_next |
8691 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8692 | goto error_return_bad_verref; |
d0fb9a8d | 8693 | |
fc0e6df6 PB |
8694 | evernaux = ((Elf_External_Vernaux *) |
8695 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8696 | } |
8697 | ||
25ff461f AM |
8698 | iverneed->vn_nextref = NULL; |
8699 | if (iverneed->vn_next == 0) | |
8700 | break; | |
fc0e6df6 PB |
8701 | if (i + 1 < hdr->sh_info) |
8702 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8703 | |
d0fb9a8d JJ |
8704 | if (iverneed->vn_next |
8705 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8706 | goto error_return_bad_verref; |
d0fb9a8d | 8707 | |
fc0e6df6 PB |
8708 | everneed = ((Elf_External_Verneed *) |
8709 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8710 | } | |
25ff461f | 8711 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8712 | |
8713 | free (contents); | |
8714 | contents = NULL; | |
8715 | } | |
252b5132 RH |
8716 | |
8717 | if (elf_dynverdef (abfd) != 0) | |
8718 | { | |
8719 | Elf_Internal_Shdr *hdr; | |
8720 | Elf_External_Verdef *everdef; | |
8721 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8722 | Elf_Internal_Verdef *iverdefarr; |
8723 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8724 | unsigned int i; |
062e2358 | 8725 | unsigned int maxidx; |
d0fb9a8d | 8726 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8727 | |
8728 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8729 | ||
601a03ba AM |
8730 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8731 | { | |
8732 | error_return_bad_verdef: | |
4eca0228 | 8733 | _bfd_error_handler |
871b3ab2 | 8734 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8735 | bfd_set_error (bfd_error_bad_value); |
8736 | error_return_verdef: | |
8737 | elf_tdata (abfd)->verdef = NULL; | |
8738 | elf_tdata (abfd)->cverdefs = 0; | |
8739 | goto error_return; | |
8740 | } | |
8741 | ||
2bb3687b | 8742 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
601a03ba | 8743 | goto error_return_verdef; |
2bb3687b AM |
8744 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); |
8745 | if (contents == NULL) | |
601a03ba | 8746 | goto error_return_verdef; |
d0fb9a8d JJ |
8747 | |
8748 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8749 | >= sizeof (Elf_External_Verdaux)); | |
8750 | contents_end_def = contents + hdr->sh_size | |
8751 | - sizeof (Elf_External_Verdef); | |
8752 | contents_end_aux = contents + hdr->sh_size | |
8753 | - sizeof (Elf_External_Verdaux); | |
8754 | ||
f631889e UD |
8755 | /* We know the number of entries in the section but not the maximum |
8756 | index. Therefore we have to run through all entries and find | |
8757 | the maximum. */ | |
252b5132 | 8758 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8759 | maxidx = 0; |
8760 | for (i = 0; i < hdr->sh_info; ++i) | |
8761 | { | |
8762 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8763 | ||
601a03ba AM |
8764 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8765 | goto error_return_bad_verdef; | |
062e2358 AM |
8766 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8767 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8768 | |
25ff461f AM |
8769 | if (iverdefmem.vd_next == 0) |
8770 | break; | |
8771 | ||
d0fb9a8d JJ |
8772 | if (iverdefmem.vd_next |
8773 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8774 | goto error_return_bad_verdef; |
d0fb9a8d | 8775 | |
f631889e UD |
8776 | everdef = ((Elf_External_Verdef *) |
8777 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8778 | } | |
8779 | ||
fc0e6df6 PB |
8780 | if (default_imported_symver) |
8781 | { | |
8782 | if (freeidx > maxidx) | |
8783 | maxidx = ++freeidx; | |
8784 | else | |
8785 | freeidx = ++maxidx; | |
8786 | } | |
1f4361a7 AM |
8787 | if (_bfd_mul_overflow (maxidx, sizeof (Elf_Internal_Verdef), &amt)) |
8788 | { | |
8789 | bfd_set_error (bfd_error_file_too_big); | |
8790 | goto error_return_verdef; | |
8791 | } | |
8792 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e | 8793 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8794 | goto error_return_verdef; |
f631889e UD |
8795 | |
8796 | elf_tdata (abfd)->cverdefs = maxidx; | |
8797 | ||
8798 | everdef = (Elf_External_Verdef *) contents; | |
8799 | iverdefarr = elf_tdata (abfd)->verdef; | |
8800 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8801 | { |
8802 | Elf_External_Verdaux *everdaux; | |
8803 | Elf_Internal_Verdaux *iverdaux; | |
8804 | unsigned int j; | |
8805 | ||
f631889e UD |
8806 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8807 | ||
d0fb9a8d | 8808 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8809 | goto error_return_bad_verdef; |
d0fb9a8d | 8810 | |
f631889e | 8811 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8812 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8813 | |
8814 | iverdef->vd_bfd = abfd; | |
8815 | ||
d0fb9a8d JJ |
8816 | if (iverdef->vd_cnt == 0) |
8817 | iverdef->vd_auxptr = NULL; | |
8818 | else | |
8819 | { | |
1f4361a7 AM |
8820 | if (_bfd_mul_overflow (iverdef->vd_cnt, |
8821 | sizeof (Elf_Internal_Verdaux), &amt)) | |
8822 | { | |
8823 | bfd_set_error (bfd_error_file_too_big); | |
8824 | goto error_return_verdef; | |
8825 | } | |
a50b1753 | 8826 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
1f4361a7 | 8827 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8828 | if (iverdef->vd_auxptr == NULL) |
8829 | goto error_return_verdef; | |
8830 | } | |
8831 | ||
8832 | if (iverdef->vd_aux | |
8833 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8834 | goto error_return_bad_verdef; |
252b5132 RH |
8835 | |
8836 | everdaux = ((Elf_External_Verdaux *) | |
8837 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8838 | iverdaux = iverdef->vd_auxptr; | |
8839 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8840 | { | |
8841 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8842 | ||
8843 | iverdaux->vda_nodename = | |
8844 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8845 | iverdaux->vda_name); | |
8846 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8847 | goto error_return_bad_verdef; |
252b5132 | 8848 | |
25ff461f AM |
8849 | iverdaux->vda_nextptr = NULL; |
8850 | if (iverdaux->vda_next == 0) | |
8851 | { | |
8852 | iverdef->vd_cnt = j + 1; | |
8853 | break; | |
8854 | } | |
252b5132 RH |
8855 | if (j + 1 < iverdef->vd_cnt) |
8856 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8857 | |
d0fb9a8d JJ |
8858 | if (iverdaux->vda_next |
8859 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8860 | goto error_return_bad_verdef; |
d0fb9a8d | 8861 | |
252b5132 RH |
8862 | everdaux = ((Elf_External_Verdaux *) |
8863 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8864 | } | |
8865 | ||
595bce75 | 8866 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8867 | if (iverdef->vd_cnt) |
8868 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8869 | |
25ff461f AM |
8870 | iverdef->vd_nextdef = NULL; |
8871 | if (iverdef->vd_next == 0) | |
8872 | break; | |
d0fb9a8d | 8873 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8874 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8875 | |
8876 | everdef = ((Elf_External_Verdef *) | |
8877 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8878 | } | |
8879 | ||
8880 | free (contents); | |
8881 | contents = NULL; | |
8882 | } | |
fc0e6df6 | 8883 | else if (default_imported_symver) |
252b5132 | 8884 | { |
fc0e6df6 PB |
8885 | if (freeidx < 3) |
8886 | freeidx = 3; | |
8887 | else | |
8888 | freeidx++; | |
252b5132 | 8889 | |
1f4361a7 AM |
8890 | if (_bfd_mul_overflow (freeidx, sizeof (Elf_Internal_Verdef), &amt)) |
8891 | { | |
8892 | bfd_set_error (bfd_error_file_too_big); | |
8893 | goto error_return; | |
8894 | } | |
8895 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
fc0e6df6 | 8896 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8897 | goto error_return; |
8898 | ||
fc0e6df6 PB |
8899 | elf_tdata (abfd)->cverdefs = freeidx; |
8900 | } | |
252b5132 | 8901 | |
fc0e6df6 PB |
8902 | /* Create a default version based on the soname. */ |
8903 | if (default_imported_symver) | |
8904 | { | |
8905 | Elf_Internal_Verdef *iverdef; | |
8906 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8907 | |
5bb3703f | 8908 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8909 | |
fc0e6df6 PB |
8910 | iverdef->vd_version = VER_DEF_CURRENT; |
8911 | iverdef->vd_flags = 0; | |
8912 | iverdef->vd_ndx = freeidx; | |
8913 | iverdef->vd_cnt = 1; | |
252b5132 | 8914 | |
fc0e6df6 | 8915 | iverdef->vd_bfd = abfd; |
252b5132 | 8916 | |
fc0e6df6 PB |
8917 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8918 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8919 | goto error_return_verdef; |
fc0e6df6 | 8920 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8921 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8922 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8923 | if (iverdef->vd_auxptr == NULL) |
8924 | goto error_return_verdef; | |
252b5132 | 8925 | |
fc0e6df6 PB |
8926 | iverdaux = iverdef->vd_auxptr; |
8927 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8928 | } |
8929 | ||
b34976b6 | 8930 | return TRUE; |
252b5132 RH |
8931 | |
8932 | error_return: | |
5ed6aba4 | 8933 | if (contents != NULL) |
252b5132 | 8934 | free (contents); |
b34976b6 | 8935 | return FALSE; |
252b5132 RH |
8936 | } |
8937 | \f | |
8938 | asymbol * | |
217aa764 | 8939 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8940 | { |
8941 | elf_symbol_type *newsym; | |
8942 | ||
7a6e0d89 | 8943 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
8944 | if (!newsym) |
8945 | return NULL; | |
201159ec NC |
8946 | newsym->symbol.the_bfd = abfd; |
8947 | return &newsym->symbol; | |
252b5132 RH |
8948 | } |
8949 | ||
8950 | void | |
217aa764 AM |
8951 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8952 | asymbol *symbol, | |
8953 | symbol_info *ret) | |
252b5132 RH |
8954 | { |
8955 | bfd_symbol_info (symbol, ret); | |
8956 | } | |
8957 | ||
8958 | /* Return whether a symbol name implies a local symbol. Most targets | |
8959 | use this function for the is_local_label_name entry point, but some | |
8960 | override it. */ | |
8961 | ||
b34976b6 | 8962 | bfd_boolean |
217aa764 AM |
8963 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8964 | const char *name) | |
252b5132 RH |
8965 | { |
8966 | /* Normal local symbols start with ``.L''. */ | |
8967 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8968 | return TRUE; |
252b5132 RH |
8969 | |
8970 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8971 | DWARF debugging symbols starting with ``..''. */ | |
8972 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8973 | return TRUE; |
252b5132 RH |
8974 | |
8975 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8976 | emitting DWARF debugging output. I suspect this is actually a | |
8977 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8978 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8979 | underscore to be emitted on some ELF targets). For ease of use, | |
8980 | we treat such symbols as local. */ | |
8981 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8982 | return TRUE; |
252b5132 | 8983 | |
b1fa9dd6 NC |
8984 | /* Treat assembler generated fake symbols, dollar local labels and |
8985 | forward-backward labels (aka local labels) as locals. | |
8986 | These labels have the form: | |
8987 | ||
07d6d2b8 | 8988 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8989 | |
8990 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8991 | ||
8992 | Versions which start with .L will have already been matched above, | |
8993 | so we only need to match the rest. */ | |
8994 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8995 | { | |
8996 | bfd_boolean ret = FALSE; | |
8997 | const char * p; | |
8998 | char c; | |
8999 | ||
9000 | for (p = name + 2; (c = *p); p++) | |
9001 | { | |
9002 | if (c == 1 || c == 2) | |
9003 | { | |
9004 | if (c == 1 && p == name + 2) | |
9005 | /* A fake symbol. */ | |
9006 | return TRUE; | |
9007 | ||
9008 | /* FIXME: We are being paranoid here and treating symbols like | |
9009 | L0^Bfoo as if there were non-local, on the grounds that the | |
9010 | assembler will never generate them. But can any symbol | |
9011 | containing an ASCII value in the range 1-31 ever be anything | |
9012 | other than some kind of local ? */ | |
9013 | ret = TRUE; | |
9014 | } | |
9015 | ||
9016 | if (! ISDIGIT (c)) | |
9017 | { | |
9018 | ret = FALSE; | |
9019 | break; | |
9020 | } | |
9021 | } | |
9022 | return ret; | |
9023 | } | |
ffa54770 | 9024 | |
b34976b6 | 9025 | return FALSE; |
252b5132 RH |
9026 | } |
9027 | ||
9028 | alent * | |
217aa764 AM |
9029 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9030 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9031 | { |
9032 | abort (); | |
9033 | return NULL; | |
9034 | } | |
9035 | ||
b34976b6 | 9036 | bfd_boolean |
217aa764 AM |
9037 | _bfd_elf_set_arch_mach (bfd *abfd, |
9038 | enum bfd_architecture arch, | |
9039 | unsigned long machine) | |
252b5132 RH |
9040 | { |
9041 | /* If this isn't the right architecture for this backend, and this | |
9042 | isn't the generic backend, fail. */ | |
9043 | if (arch != get_elf_backend_data (abfd)->arch | |
9044 | && arch != bfd_arch_unknown | |
9045 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 9046 | return FALSE; |
252b5132 RH |
9047 | |
9048 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9049 | } | |
9050 | ||
d1fad7c6 NC |
9051 | /* Find the nearest line to a particular section and offset, |
9052 | for error reporting. */ | |
9053 | ||
b34976b6 | 9054 | bfd_boolean |
217aa764 | 9055 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9056 | asymbol **symbols, |
fb167eb2 | 9057 | asection *section, |
217aa764 AM |
9058 | bfd_vma offset, |
9059 | const char **filename_ptr, | |
9060 | const char **functionname_ptr, | |
fb167eb2 AM |
9061 | unsigned int *line_ptr, |
9062 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9063 | { |
b34976b6 | 9064 | bfd_boolean found; |
d1fad7c6 | 9065 | |
fb167eb2 | 9066 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9067 | filename_ptr, functionname_ptr, |
fb167eb2 | 9068 | line_ptr, discriminator_ptr, |
9defd221 | 9069 | dwarf_debug_sections, |
e7679060 AM |
9070 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
9071 | return TRUE; | |
9072 | ||
9073 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9074 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
9075 | { |
9076 | if (!*functionname_ptr) | |
e00e8198 AM |
9077 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9078 | *filename_ptr ? NULL : filename_ptr, | |
9079 | functionname_ptr); | |
b34976b6 | 9080 | return TRUE; |
d1fad7c6 NC |
9081 | } |
9082 | ||
9083 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9084 | &found, filename_ptr, |
9085 | functionname_ptr, line_ptr, | |
9086 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 9087 | return FALSE; |
dc43ada5 | 9088 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 9089 | return TRUE; |
d1fad7c6 NC |
9090 | |
9091 | if (symbols == NULL) | |
b34976b6 | 9092 | return FALSE; |
d1fad7c6 | 9093 | |
e00e8198 AM |
9094 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9095 | filename_ptr, functionname_ptr)) | |
b34976b6 | 9096 | return FALSE; |
d1fad7c6 | 9097 | |
252b5132 | 9098 | *line_ptr = 0; |
b34976b6 | 9099 | return TRUE; |
252b5132 RH |
9100 | } |
9101 | ||
5420f73d L |
9102 | /* Find the line for a symbol. */ |
9103 | ||
9104 | bfd_boolean | |
9105 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
9106 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9107 | { |
fb167eb2 AM |
9108 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9109 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9110 | dwarf_debug_sections, |
fb167eb2 | 9111 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9112 | } |
9113 | ||
4ab527b0 FF |
9114 | /* After a call to bfd_find_nearest_line, successive calls to |
9115 | bfd_find_inliner_info can be used to get source information about | |
9116 | each level of function inlining that terminated at the address | |
9117 | passed to bfd_find_nearest_line. Currently this is only supported | |
9118 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9119 | ||
9120 | bfd_boolean | |
9121 | _bfd_elf_find_inliner_info (bfd *abfd, | |
9122 | const char **filename_ptr, | |
9123 | const char **functionname_ptr, | |
9124 | unsigned int *line_ptr) | |
9125 | { | |
9126 | bfd_boolean found; | |
9127 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9128 | functionname_ptr, line_ptr, | |
9129 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9130 | return found; | |
9131 | } | |
9132 | ||
252b5132 | 9133 | int |
a6b96beb | 9134 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9135 | { |
8ded5a0f AM |
9136 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9137 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9138 | |
0e1862bb | 9139 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9140 | { |
12bd6957 | 9141 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9142 | |
62d7a5f6 AM |
9143 | if (phdr_size == (bfd_size_type) -1) |
9144 | { | |
9145 | struct elf_segment_map *m; | |
9146 | ||
9147 | phdr_size = 0; | |
12bd6957 | 9148 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9149 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9150 | |
62d7a5f6 AM |
9151 | if (phdr_size == 0) |
9152 | phdr_size = get_program_header_size (abfd, info); | |
9153 | } | |
8ded5a0f | 9154 | |
12bd6957 | 9155 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9156 | ret += phdr_size; |
9157 | } | |
9158 | ||
252b5132 RH |
9159 | return ret; |
9160 | } | |
9161 | ||
b34976b6 | 9162 | bfd_boolean |
217aa764 AM |
9163 | _bfd_elf_set_section_contents (bfd *abfd, |
9164 | sec_ptr section, | |
0f867abe | 9165 | const void *location, |
217aa764 AM |
9166 | file_ptr offset, |
9167 | bfd_size_type count) | |
252b5132 RH |
9168 | { |
9169 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9170 | file_ptr pos; |
252b5132 RH |
9171 | |
9172 | if (! abfd->output_has_begun | |
217aa764 | 9173 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 9174 | return FALSE; |
252b5132 | 9175 | |
0ce398f1 L |
9176 | if (!count) |
9177 | return TRUE; | |
9178 | ||
252b5132 | 9179 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9180 | if (hdr->sh_offset == (file_ptr) -1) |
9181 | { | |
1ff6de03 NA |
9182 | if (bfd_section_is_ctf (section)) |
9183 | /* Nothing to do with this section: the contents are generated | |
9184 | later. */ | |
9185 | return TRUE; | |
9186 | ||
0ce398f1 L |
9187 | /* We must compress this section. Write output to the buffer. */ |
9188 | unsigned char *contents = hdr->contents; | |
9189 | if ((offset + count) > hdr->sh_size | |
9190 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
9191 | || contents == NULL) | |
9192 | abort (); | |
9193 | memcpy (contents + offset, location, count); | |
9194 | return TRUE; | |
9195 | } | |
dc810e39 AM |
9196 | pos = hdr->sh_offset + offset; |
9197 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9198 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9199 | return FALSE; |
252b5132 | 9200 | |
b34976b6 | 9201 | return TRUE; |
252b5132 RH |
9202 | } |
9203 | ||
f3185997 | 9204 | bfd_boolean |
217aa764 AM |
9205 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9206 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9207 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9208 | { |
9209 | abort (); | |
f3185997 | 9210 | return FALSE; |
252b5132 RH |
9211 | } |
9212 | ||
252b5132 RH |
9213 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9214 | ||
b34976b6 | 9215 | bfd_boolean |
217aa764 | 9216 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9217 | { |
c044fabd | 9218 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9219 | |
9220 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9221 | { | |
9222 | bfd_reloc_code_real_type code; | |
9223 | reloc_howto_type *howto; | |
9224 | ||
9225 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9226 | equivalent ELF reloc. */ |
252b5132 RH |
9227 | |
9228 | if (areloc->howto->pc_relative) | |
9229 | { | |
9230 | switch (areloc->howto->bitsize) | |
9231 | { | |
9232 | case 8: | |
9233 | code = BFD_RELOC_8_PCREL; | |
9234 | break; | |
9235 | case 12: | |
9236 | code = BFD_RELOC_12_PCREL; | |
9237 | break; | |
9238 | case 16: | |
9239 | code = BFD_RELOC_16_PCREL; | |
9240 | break; | |
9241 | case 24: | |
9242 | code = BFD_RELOC_24_PCREL; | |
9243 | break; | |
9244 | case 32: | |
9245 | code = BFD_RELOC_32_PCREL; | |
9246 | break; | |
9247 | case 64: | |
9248 | code = BFD_RELOC_64_PCREL; | |
9249 | break; | |
9250 | default: | |
9251 | goto fail; | |
9252 | } | |
9253 | ||
9254 | howto = bfd_reloc_type_lookup (abfd, code); | |
9255 | ||
94698d01 | 9256 | if (howto && areloc->howto->pcrel_offset != howto->pcrel_offset) |
252b5132 RH |
9257 | { |
9258 | if (howto->pcrel_offset) | |
9259 | areloc->addend += areloc->address; | |
9260 | else | |
9261 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9262 | } | |
9263 | } | |
9264 | else | |
9265 | { | |
9266 | switch (areloc->howto->bitsize) | |
9267 | { | |
9268 | case 8: | |
9269 | code = BFD_RELOC_8; | |
9270 | break; | |
9271 | case 14: | |
9272 | code = BFD_RELOC_14; | |
9273 | break; | |
9274 | case 16: | |
9275 | code = BFD_RELOC_16; | |
9276 | break; | |
9277 | case 26: | |
9278 | code = BFD_RELOC_26; | |
9279 | break; | |
9280 | case 32: | |
9281 | code = BFD_RELOC_32; | |
9282 | break; | |
9283 | case 64: | |
9284 | code = BFD_RELOC_64; | |
9285 | break; | |
9286 | default: | |
9287 | goto fail; | |
9288 | } | |
9289 | ||
9290 | howto = bfd_reloc_type_lookup (abfd, code); | |
9291 | } | |
9292 | ||
9293 | if (howto) | |
9294 | areloc->howto = howto; | |
9295 | else | |
9296 | goto fail; | |
9297 | } | |
9298 | ||
b34976b6 | 9299 | return TRUE; |
252b5132 RH |
9300 | |
9301 | fail: | |
0aa13fee AM |
9302 | /* xgettext:c-format */ |
9303 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9304 | abfd, areloc->howto->name); | |
9aea1e31 | 9305 | bfd_set_error (bfd_error_sorry); |
b34976b6 | 9306 | return FALSE; |
252b5132 RH |
9307 | } |
9308 | ||
b34976b6 | 9309 | bfd_boolean |
217aa764 | 9310 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9311 | { |
d9071b0c TG |
9312 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9313 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9314 | { |
c0355132 | 9315 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9316 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9317 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9318 | } |
9319 | ||
9320 | return _bfd_generic_close_and_cleanup (abfd); | |
9321 | } | |
9322 | ||
9323 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9324 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9325 | range-checking to interfere. There is nothing else to do in processing | |
9326 | this reloc. */ | |
9327 | ||
9328 | bfd_reloc_status_type | |
217aa764 AM |
9329 | _bfd_elf_rel_vtable_reloc_fn |
9330 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9331 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9332 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9333 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9334 | { |
9335 | return bfd_reloc_ok; | |
9336 | } | |
252b5132 RH |
9337 | \f |
9338 | /* Elf core file support. Much of this only works on native | |
9339 | toolchains, since we rely on knowing the | |
9340 | machine-dependent procfs structure in order to pick | |
c044fabd | 9341 | out details about the corefile. */ |
252b5132 RH |
9342 | |
9343 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9344 | /* Needed for new procfs interface on sparc-solaris. */ |
9345 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9346 | # include <sys/procfs.h> |
9347 | #endif | |
9348 | ||
261b8d08 PA |
9349 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9350 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9351 | |
9352 | static int | |
217aa764 | 9353 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9354 | { |
261b8d08 PA |
9355 | int pid; |
9356 | ||
228e534f | 9357 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9358 | if (pid == 0) |
228e534f | 9359 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9360 | |
9361 | return pid; | |
252b5132 RH |
9362 | } |
9363 | ||
252b5132 RH |
9364 | /* If there isn't a section called NAME, make one, using |
9365 | data from SECT. Note, this function will generate a | |
9366 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9367 | overwrite it. */ |
252b5132 | 9368 | |
b34976b6 | 9369 | static bfd_boolean |
217aa764 | 9370 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9371 | { |
c044fabd | 9372 | asection *sect2; |
252b5132 RH |
9373 | |
9374 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9375 | return TRUE; |
252b5132 | 9376 | |
117ed4f8 | 9377 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9378 | if (sect2 == NULL) |
b34976b6 | 9379 | return FALSE; |
252b5132 | 9380 | |
eea6121a | 9381 | sect2->size = sect->size; |
252b5132 | 9382 | sect2->filepos = sect->filepos; |
252b5132 | 9383 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9384 | return TRUE; |
252b5132 RH |
9385 | } |
9386 | ||
bb0082d6 AM |
9387 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9388 | actually creates up to two pseudosections: | |
9389 | - For the single-threaded case, a section named NAME, unless | |
9390 | such a section already exists. | |
9391 | - For the multi-threaded case, a section named "NAME/PID", where | |
9392 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9393 | Both pseudosections have identical contents. */ |
b34976b6 | 9394 | bfd_boolean |
217aa764 AM |
9395 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9396 | char *name, | |
9397 | size_t size, | |
9398 | ufile_ptr filepos) | |
bb0082d6 AM |
9399 | { |
9400 | char buf[100]; | |
9401 | char *threaded_name; | |
d4c88bbb | 9402 | size_t len; |
bb0082d6 AM |
9403 | asection *sect; |
9404 | ||
9405 | /* Build the section name. */ | |
9406 | ||
9407 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9408 | len = strlen (buf) + 1; |
a50b1753 | 9409 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9410 | if (threaded_name == NULL) |
b34976b6 | 9411 | return FALSE; |
d4c88bbb | 9412 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9413 | |
117ed4f8 AM |
9414 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9415 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9416 | if (sect == NULL) |
b34976b6 | 9417 | return FALSE; |
eea6121a | 9418 | sect->size = size; |
bb0082d6 | 9419 | sect->filepos = filepos; |
bb0082d6 AM |
9420 | sect->alignment_power = 2; |
9421 | ||
936e320b | 9422 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9423 | } |
9424 | ||
58e07198 CZ |
9425 | static bfd_boolean |
9426 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9427 | size_t offs) | |
9428 | { | |
9429 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9430 | SEC_HAS_CONTENTS); | |
9431 | ||
9432 | if (sect == NULL) | |
9433 | return FALSE; | |
9434 | ||
9435 | sect->size = note->descsz - offs; | |
9436 | sect->filepos = note->descpos + offs; | |
9437 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9438 | ||
9439 | return TRUE; | |
9440 | } | |
9441 | ||
252b5132 | 9442 | /* prstatus_t exists on: |
4a938328 | 9443 | solaris 2.5+ |
252b5132 RH |
9444 | linux 2.[01] + glibc |
9445 | unixware 4.2 | |
9446 | */ | |
9447 | ||
9448 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9449 | |
b34976b6 | 9450 | static bfd_boolean |
217aa764 | 9451 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9452 | { |
eea6121a | 9453 | size_t size; |
7ee38065 | 9454 | int offset; |
252b5132 | 9455 | |
4a938328 MS |
9456 | if (note->descsz == sizeof (prstatus_t)) |
9457 | { | |
9458 | prstatus_t prstat; | |
252b5132 | 9459 | |
eea6121a | 9460 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9461 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9462 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9463 | |
fa49d224 NC |
9464 | /* Do not overwrite the core signal if it |
9465 | has already been set by another thread. */ | |
228e534f AM |
9466 | if (elf_tdata (abfd)->core->signal == 0) |
9467 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9468 | if (elf_tdata (abfd)->core->pid == 0) | |
9469 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9470 | |
4a938328 MS |
9471 | /* pr_who exists on: |
9472 | solaris 2.5+ | |
9473 | unixware 4.2 | |
9474 | pr_who doesn't exist on: | |
9475 | linux 2.[01] | |
9476 | */ | |
252b5132 | 9477 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9478 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9479 | #else |
228e534f | 9480 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9481 | #endif |
4a938328 | 9482 | } |
7ee38065 | 9483 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9484 | else if (note->descsz == sizeof (prstatus32_t)) |
9485 | { | |
9486 | /* 64-bit host, 32-bit corefile */ | |
9487 | prstatus32_t prstat; | |
9488 | ||
eea6121a | 9489 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9490 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9491 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9492 | ||
fa49d224 NC |
9493 | /* Do not overwrite the core signal if it |
9494 | has already been set by another thread. */ | |
228e534f AM |
9495 | if (elf_tdata (abfd)->core->signal == 0) |
9496 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9497 | if (elf_tdata (abfd)->core->pid == 0) | |
9498 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9499 | |
9500 | /* pr_who exists on: | |
9501 | solaris 2.5+ | |
9502 | unixware 4.2 | |
9503 | pr_who doesn't exist on: | |
9504 | linux 2.[01] | |
9505 | */ | |
7ee38065 | 9506 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9507 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9508 | #else |
228e534f | 9509 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9510 | #endif |
9511 | } | |
7ee38065 | 9512 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9513 | else |
9514 | { | |
9515 | /* Fail - we don't know how to handle any other | |
9516 | note size (ie. data object type). */ | |
b34976b6 | 9517 | return TRUE; |
4a938328 | 9518 | } |
252b5132 | 9519 | |
bb0082d6 | 9520 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9521 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9522 | size, note->descpos + offset); |
252b5132 RH |
9523 | } |
9524 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9525 | ||
bb0082d6 | 9526 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9527 | static bfd_boolean |
217aa764 AM |
9528 | elfcore_make_note_pseudosection (bfd *abfd, |
9529 | char *name, | |
9530 | Elf_Internal_Note *note) | |
252b5132 | 9531 | { |
936e320b AM |
9532 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9533 | note->descsz, note->descpos); | |
252b5132 RH |
9534 | } |
9535 | ||
ff08c6bb JB |
9536 | /* There isn't a consistent prfpregset_t across platforms, |
9537 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9538 | data structure apart. */ |
9539 | ||
b34976b6 | 9540 | static bfd_boolean |
217aa764 | 9541 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9542 | { |
9543 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9544 | } | |
9545 | ||
ff08c6bb | 9546 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9547 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9548 | literally. */ |
c044fabd | 9549 | |
b34976b6 | 9550 | static bfd_boolean |
217aa764 | 9551 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9552 | { |
9553 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9554 | } | |
9555 | ||
4339cae0 L |
9556 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9557 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9558 | contents literally. */ | |
9559 | ||
9560 | static bfd_boolean | |
9561 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9562 | { | |
9563 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9564 | } | |
9565 | ||
97753bd5 AM |
9566 | static bfd_boolean |
9567 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9568 | { | |
9569 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9570 | } | |
9571 | ||
89eeb0bc LM |
9572 | static bfd_boolean |
9573 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9574 | { | |
9575 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9576 | } | |
97753bd5 | 9577 | |
cb2366c1 EBM |
9578 | static bfd_boolean |
9579 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9580 | { | |
9581 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9582 | } | |
9583 | ||
9584 | static bfd_boolean | |
9585 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9586 | { | |
9587 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9588 | } | |
9589 | ||
9590 | static bfd_boolean | |
9591 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9592 | { | |
9593 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9594 | } | |
9595 | ||
9596 | static bfd_boolean | |
9597 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9598 | { | |
9599 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9600 | } | |
9601 | ||
9602 | static bfd_boolean | |
9603 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9604 | { | |
9605 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9606 | } | |
9607 | ||
9608 | static bfd_boolean | |
9609 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9610 | { | |
9611 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9612 | } | |
9613 | ||
9614 | static bfd_boolean | |
9615 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9616 | { | |
9617 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9618 | } | |
9619 | ||
9620 | static bfd_boolean | |
9621 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9622 | { | |
9623 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9624 | } | |
9625 | ||
9626 | static bfd_boolean | |
9627 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9628 | { | |
9629 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9630 | } | |
9631 | ||
9632 | static bfd_boolean | |
9633 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9634 | { | |
9635 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9636 | } | |
9637 | ||
9638 | static bfd_boolean | |
9639 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9640 | { | |
9641 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9642 | } | |
9643 | ||
9644 | static bfd_boolean | |
9645 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9646 | { | |
9647 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9648 | } | |
9649 | ||
9650 | static bfd_boolean | |
9651 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9652 | { | |
9653 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9654 | } | |
9655 | ||
0675e188 UW |
9656 | static bfd_boolean |
9657 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9658 | { | |
9659 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9660 | } | |
9661 | ||
d7eeb400 MS |
9662 | static bfd_boolean |
9663 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9664 | { | |
9665 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9666 | } | |
9667 | ||
9668 | static bfd_boolean | |
9669 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9670 | { | |
9671 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9672 | } | |
9673 | ||
9674 | static bfd_boolean | |
9675 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9676 | { | |
9677 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9678 | } | |
9679 | ||
9680 | static bfd_boolean | |
9681 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9682 | { | |
9683 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9684 | } | |
9685 | ||
9686 | static bfd_boolean | |
9687 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9688 | { | |
9689 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9690 | } | |
9691 | ||
355b81d9 UW |
9692 | static bfd_boolean |
9693 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9694 | { | |
9695 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9696 | } | |
9697 | ||
9698 | static bfd_boolean | |
9699 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9700 | { | |
9701 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9702 | } | |
9703 | ||
abb3f6cc NC |
9704 | static bfd_boolean |
9705 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9706 | { | |
9707 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9708 | } | |
9709 | ||
4ef9f41a AA |
9710 | static bfd_boolean |
9711 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9712 | { | |
9713 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9714 | } | |
9715 | ||
9716 | static bfd_boolean | |
9717 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9718 | { | |
9719 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9720 | } | |
9721 | ||
88ab90e8 AA |
9722 | static bfd_boolean |
9723 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9724 | { | |
9725 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9726 | } | |
9727 | ||
9728 | static bfd_boolean | |
9729 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9730 | { | |
9731 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9732 | } | |
9733 | ||
faa9a424 UW |
9734 | static bfd_boolean |
9735 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9736 | { | |
9737 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9738 | } | |
9739 | ||
652451f8 YZ |
9740 | static bfd_boolean |
9741 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9742 | { | |
9743 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9744 | } | |
9745 | ||
9746 | static bfd_boolean | |
9747 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9748 | { | |
9749 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9750 | } | |
9751 | ||
9752 | static bfd_boolean | |
9753 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9754 | { | |
9755 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9756 | } | |
9757 | ||
ad1cc4e4 AH |
9758 | static bfd_boolean |
9759 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9760 | { | |
9761 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9762 | } | |
9763 | ||
e6c3b5bf AH |
9764 | static bfd_boolean |
9765 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9766 | { | |
9767 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9768 | } | |
9769 | ||
252b5132 | 9770 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9771 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9772 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9773 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9774 | #endif | |
252b5132 RH |
9775 | #endif |
9776 | ||
9777 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9778 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9779 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9780 | typedef psinfo32_t elfcore_psinfo32_t; |
9781 | #endif | |
252b5132 RH |
9782 | #endif |
9783 | ||
252b5132 RH |
9784 | /* return a malloc'ed copy of a string at START which is at |
9785 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9786 | the copy will always have a terminating '\0'. */ |
252b5132 | 9787 | |
936e320b | 9788 | char * |
217aa764 | 9789 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9790 | { |
dc810e39 | 9791 | char *dups; |
a50b1753 | 9792 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9793 | size_t len; |
252b5132 RH |
9794 | |
9795 | if (end == NULL) | |
9796 | len = max; | |
9797 | else | |
9798 | len = end - start; | |
9799 | ||
a50b1753 | 9800 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9801 | if (dups == NULL) |
252b5132 RH |
9802 | return NULL; |
9803 | ||
dc810e39 AM |
9804 | memcpy (dups, start, len); |
9805 | dups[len] = '\0'; | |
252b5132 | 9806 | |
dc810e39 | 9807 | return dups; |
252b5132 RH |
9808 | } |
9809 | ||
bb0082d6 | 9810 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9811 | static bfd_boolean |
217aa764 | 9812 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9813 | { |
4a938328 MS |
9814 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9815 | { | |
9816 | elfcore_psinfo_t psinfo; | |
252b5132 | 9817 | |
7ee38065 | 9818 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9819 | |
335e41d4 | 9820 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9821 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9822 | #endif |
228e534f | 9823 | elf_tdata (abfd)->core->program |
936e320b AM |
9824 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9825 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9826 | |
228e534f | 9827 | elf_tdata (abfd)->core->command |
936e320b AM |
9828 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9829 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9830 | } |
7ee38065 | 9831 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9832 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9833 | { | |
9834 | /* 64-bit host, 32-bit corefile */ | |
9835 | elfcore_psinfo32_t psinfo; | |
9836 | ||
7ee38065 | 9837 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9838 | |
335e41d4 | 9839 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9840 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9841 | #endif |
228e534f | 9842 | elf_tdata (abfd)->core->program |
936e320b AM |
9843 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9844 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9845 | |
228e534f | 9846 | elf_tdata (abfd)->core->command |
936e320b AM |
9847 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9848 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9849 | } |
9850 | #endif | |
9851 | ||
9852 | else | |
9853 | { | |
9854 | /* Fail - we don't know how to handle any other | |
9855 | note size (ie. data object type). */ | |
b34976b6 | 9856 | return TRUE; |
4a938328 | 9857 | } |
252b5132 RH |
9858 | |
9859 | /* Note that for some reason, a spurious space is tacked | |
9860 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9861 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9862 | |
9863 | { | |
228e534f | 9864 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9865 | int n = strlen (command); |
9866 | ||
9867 | if (0 < n && command[n - 1] == ' ') | |
9868 | command[n - 1] = '\0'; | |
9869 | } | |
9870 | ||
b34976b6 | 9871 | return TRUE; |
252b5132 RH |
9872 | } |
9873 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9874 | ||
252b5132 | 9875 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9876 | static bfd_boolean |
217aa764 | 9877 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9878 | { |
f572a39d AM |
9879 | if (note->descsz == sizeof (pstatus_t) |
9880 | #if defined (HAVE_PXSTATUS_T) | |
9881 | || note->descsz == sizeof (pxstatus_t) | |
9882 | #endif | |
9883 | ) | |
4a938328 MS |
9884 | { |
9885 | pstatus_t pstat; | |
252b5132 | 9886 | |
4a938328 | 9887 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9888 | |
228e534f | 9889 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9890 | } |
7ee38065 | 9891 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9892 | else if (note->descsz == sizeof (pstatus32_t)) |
9893 | { | |
9894 | /* 64-bit host, 32-bit corefile */ | |
9895 | pstatus32_t pstat; | |
252b5132 | 9896 | |
4a938328 | 9897 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9898 | |
228e534f | 9899 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9900 | } |
9901 | #endif | |
252b5132 RH |
9902 | /* Could grab some more details from the "representative" |
9903 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9904 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9905 | |
b34976b6 | 9906 | return TRUE; |
252b5132 RH |
9907 | } |
9908 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9909 | ||
252b5132 | 9910 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9911 | static bfd_boolean |
217aa764 | 9912 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9913 | { |
9914 | lwpstatus_t lwpstat; | |
9915 | char buf[100]; | |
c044fabd | 9916 | char *name; |
d4c88bbb | 9917 | size_t len; |
c044fabd | 9918 | asection *sect; |
252b5132 | 9919 | |
f572a39d AM |
9920 | if (note->descsz != sizeof (lwpstat) |
9921 | #if defined (HAVE_LWPXSTATUS_T) | |
9922 | && note->descsz != sizeof (lwpxstatus_t) | |
9923 | #endif | |
9924 | ) | |
b34976b6 | 9925 | return TRUE; |
252b5132 RH |
9926 | |
9927 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9928 | ||
228e534f | 9929 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9930 | /* Do not overwrite the core signal if it has already been set by |
9931 | another thread. */ | |
228e534f AM |
9932 | if (elf_tdata (abfd)->core->signal == 0) |
9933 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9934 | |
c044fabd | 9935 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9936 | |
9937 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9938 | len = strlen (buf) + 1; |
217aa764 | 9939 | name = bfd_alloc (abfd, len); |
252b5132 | 9940 | if (name == NULL) |
b34976b6 | 9941 | return FALSE; |
d4c88bbb | 9942 | memcpy (name, buf, len); |
252b5132 | 9943 | |
117ed4f8 | 9944 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9945 | if (sect == NULL) |
b34976b6 | 9946 | return FALSE; |
252b5132 RH |
9947 | |
9948 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9949 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9950 | sect->filepos = note->descpos |
9951 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9952 | #endif | |
9953 | ||
9954 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9955 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9956 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9957 | #endif | |
9958 | ||
252b5132 RH |
9959 | sect->alignment_power = 2; |
9960 | ||
9961 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9962 | return FALSE; |
252b5132 RH |
9963 | |
9964 | /* Make a ".reg2/999" section */ | |
9965 | ||
9966 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9967 | len = strlen (buf) + 1; |
217aa764 | 9968 | name = bfd_alloc (abfd, len); |
252b5132 | 9969 | if (name == NULL) |
b34976b6 | 9970 | return FALSE; |
d4c88bbb | 9971 | memcpy (name, buf, len); |
252b5132 | 9972 | |
117ed4f8 | 9973 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9974 | if (sect == NULL) |
b34976b6 | 9975 | return FALSE; |
252b5132 RH |
9976 | |
9977 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9978 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9979 | sect->filepos = note->descpos |
9980 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9981 | #endif | |
9982 | ||
9983 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9984 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9985 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9986 | #endif | |
9987 | ||
252b5132 RH |
9988 | sect->alignment_power = 2; |
9989 | ||
936e320b | 9990 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9991 | } |
9992 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9993 | ||
b34976b6 | 9994 | static bfd_boolean |
217aa764 | 9995 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9996 | { |
9997 | char buf[30]; | |
c044fabd | 9998 | char *name; |
d4c88bbb | 9999 | size_t len; |
c044fabd | 10000 | asection *sect; |
4a6636fb PA |
10001 | int type; |
10002 | int is_active_thread; | |
10003 | bfd_vma base_addr; | |
16e9c715 | 10004 | |
4a6636fb | 10005 | if (note->descsz < 728) |
b34976b6 | 10006 | return TRUE; |
16e9c715 | 10007 | |
4a6636fb PA |
10008 | if (! CONST_STRNEQ (note->namedata, "win32")) |
10009 | return TRUE; | |
10010 | ||
10011 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 10012 | |
4a6636fb | 10013 | switch (type) |
16e9c715 | 10014 | { |
4a6636fb | 10015 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 10016 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 10017 | /* process_info.pid */ |
228e534f | 10018 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 10019 | /* process_info.signal */ |
228e534f | 10020 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 10021 | break; |
16e9c715 | 10022 | |
4a6636fb | 10023 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 10024 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
10025 | /* thread_info.tid */ |
10026 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 10027 | |
d4c88bbb | 10028 | len = strlen (buf) + 1; |
a50b1753 | 10029 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10030 | if (name == NULL) |
b34976b6 | 10031 | return FALSE; |
c044fabd | 10032 | |
d4c88bbb | 10033 | memcpy (name, buf, len); |
16e9c715 | 10034 | |
117ed4f8 | 10035 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10036 | if (sect == NULL) |
b34976b6 | 10037 | return FALSE; |
c044fabd | 10038 | |
4a6636fb PA |
10039 | /* sizeof (thread_info.thread_context) */ |
10040 | sect->size = 716; | |
10041 | /* offsetof (thread_info.thread_context) */ | |
10042 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10043 | sect->alignment_power = 2; |
10044 | ||
4a6636fb PA |
10045 | /* thread_info.is_active_thread */ |
10046 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10047 | ||
10048 | if (is_active_thread) | |
16e9c715 | 10049 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 10050 | return FALSE; |
16e9c715 NC |
10051 | break; |
10052 | ||
4a6636fb | 10053 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 10054 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
10055 | /* module_info.base_address */ |
10056 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 10057 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 10058 | |
d4c88bbb | 10059 | len = strlen (buf) + 1; |
a50b1753 | 10060 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10061 | if (name == NULL) |
b34976b6 | 10062 | return FALSE; |
c044fabd | 10063 | |
d4c88bbb | 10064 | memcpy (name, buf, len); |
252b5132 | 10065 | |
117ed4f8 | 10066 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10067 | |
16e9c715 | 10068 | if (sect == NULL) |
b34976b6 | 10069 | return FALSE; |
c044fabd | 10070 | |
eea6121a | 10071 | sect->size = note->descsz; |
16e9c715 | 10072 | sect->filepos = note->descpos; |
16e9c715 NC |
10073 | sect->alignment_power = 2; |
10074 | break; | |
10075 | ||
10076 | default: | |
b34976b6 | 10077 | return TRUE; |
16e9c715 NC |
10078 | } |
10079 | ||
b34976b6 | 10080 | return TRUE; |
16e9c715 | 10081 | } |
252b5132 | 10082 | |
b34976b6 | 10083 | static bfd_boolean |
217aa764 | 10084 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10085 | { |
9c5bfbb7 | 10086 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10087 | |
252b5132 RH |
10088 | switch (note->type) |
10089 | { | |
10090 | default: | |
b34976b6 | 10091 | return TRUE; |
252b5132 | 10092 | |
252b5132 | 10093 | case NT_PRSTATUS: |
bb0082d6 AM |
10094 | if (bed->elf_backend_grok_prstatus) |
10095 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 10096 | return TRUE; |
bb0082d6 | 10097 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10098 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10099 | #else |
b34976b6 | 10100 | return TRUE; |
252b5132 RH |
10101 | #endif |
10102 | ||
10103 | #if defined (HAVE_PSTATUS_T) | |
10104 | case NT_PSTATUS: | |
10105 | return elfcore_grok_pstatus (abfd, note); | |
10106 | #endif | |
10107 | ||
10108 | #if defined (HAVE_LWPSTATUS_T) | |
10109 | case NT_LWPSTATUS: | |
10110 | return elfcore_grok_lwpstatus (abfd, note); | |
10111 | #endif | |
10112 | ||
10113 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10114 | return elfcore_grok_prfpreg (abfd, note); | |
10115 | ||
c044fabd | 10116 | case NT_WIN32PSTATUS: |
16e9c715 | 10117 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10118 | |
c044fabd | 10119 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10120 | if (note->namesz == 6 |
10121 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10122 | return elfcore_grok_prxfpreg (abfd, note); |
10123 | else | |
b34976b6 | 10124 | return TRUE; |
ff08c6bb | 10125 | |
4339cae0 L |
10126 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10127 | if (note->namesz == 6 | |
10128 | && strcmp (note->namedata, "LINUX") == 0) | |
10129 | return elfcore_grok_xstatereg (abfd, note); | |
10130 | else | |
10131 | return TRUE; | |
10132 | ||
97753bd5 AM |
10133 | case NT_PPC_VMX: |
10134 | if (note->namesz == 6 | |
10135 | && strcmp (note->namedata, "LINUX") == 0) | |
10136 | return elfcore_grok_ppc_vmx (abfd, note); | |
10137 | else | |
10138 | return TRUE; | |
10139 | ||
89eeb0bc LM |
10140 | case NT_PPC_VSX: |
10141 | if (note->namesz == 6 | |
07d6d2b8 AM |
10142 | && strcmp (note->namedata, "LINUX") == 0) |
10143 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10144 | else |
07d6d2b8 | 10145 | return TRUE; |
89eeb0bc | 10146 | |
cb2366c1 EBM |
10147 | case NT_PPC_TAR: |
10148 | if (note->namesz == 6 | |
4b24dd1a AM |
10149 | && strcmp (note->namedata, "LINUX") == 0) |
10150 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10151 | else |
4b24dd1a | 10152 | return TRUE; |
cb2366c1 EBM |
10153 | |
10154 | case NT_PPC_PPR: | |
10155 | if (note->namesz == 6 | |
4b24dd1a AM |
10156 | && strcmp (note->namedata, "LINUX") == 0) |
10157 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10158 | else |
4b24dd1a | 10159 | return TRUE; |
cb2366c1 EBM |
10160 | |
10161 | case NT_PPC_DSCR: | |
10162 | if (note->namesz == 6 | |
4b24dd1a AM |
10163 | && strcmp (note->namedata, "LINUX") == 0) |
10164 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10165 | else |
4b24dd1a | 10166 | return TRUE; |
cb2366c1 EBM |
10167 | |
10168 | case NT_PPC_EBB: | |
10169 | if (note->namesz == 6 | |
4b24dd1a AM |
10170 | && strcmp (note->namedata, "LINUX") == 0) |
10171 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10172 | else |
4b24dd1a | 10173 | return TRUE; |
cb2366c1 EBM |
10174 | |
10175 | case NT_PPC_PMU: | |
10176 | if (note->namesz == 6 | |
4b24dd1a AM |
10177 | && strcmp (note->namedata, "LINUX") == 0) |
10178 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10179 | else |
4b24dd1a | 10180 | return TRUE; |
cb2366c1 EBM |
10181 | |
10182 | case NT_PPC_TM_CGPR: | |
10183 | if (note->namesz == 6 | |
4b24dd1a AM |
10184 | && strcmp (note->namedata, "LINUX") == 0) |
10185 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10186 | else |
4b24dd1a | 10187 | return TRUE; |
cb2366c1 EBM |
10188 | |
10189 | case NT_PPC_TM_CFPR: | |
10190 | if (note->namesz == 6 | |
4b24dd1a AM |
10191 | && strcmp (note->namedata, "LINUX") == 0) |
10192 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10193 | else |
4b24dd1a | 10194 | return TRUE; |
cb2366c1 EBM |
10195 | |
10196 | case NT_PPC_TM_CVMX: | |
10197 | if (note->namesz == 6 | |
4b24dd1a AM |
10198 | && strcmp (note->namedata, "LINUX") == 0) |
10199 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10200 | else |
4b24dd1a | 10201 | return TRUE; |
cb2366c1 EBM |
10202 | |
10203 | case NT_PPC_TM_CVSX: | |
10204 | if (note->namesz == 6 | |
4b24dd1a AM |
10205 | && strcmp (note->namedata, "LINUX") == 0) |
10206 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10207 | else |
4b24dd1a | 10208 | return TRUE; |
cb2366c1 EBM |
10209 | |
10210 | case NT_PPC_TM_SPR: | |
10211 | if (note->namesz == 6 | |
4b24dd1a AM |
10212 | && strcmp (note->namedata, "LINUX") == 0) |
10213 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10214 | else |
4b24dd1a | 10215 | return TRUE; |
cb2366c1 EBM |
10216 | |
10217 | case NT_PPC_TM_CTAR: | |
10218 | if (note->namesz == 6 | |
4b24dd1a AM |
10219 | && strcmp (note->namedata, "LINUX") == 0) |
10220 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10221 | else |
4b24dd1a | 10222 | return TRUE; |
cb2366c1 EBM |
10223 | |
10224 | case NT_PPC_TM_CPPR: | |
10225 | if (note->namesz == 6 | |
4b24dd1a AM |
10226 | && strcmp (note->namedata, "LINUX") == 0) |
10227 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10228 | else |
4b24dd1a | 10229 | return TRUE; |
cb2366c1 EBM |
10230 | |
10231 | case NT_PPC_TM_CDSCR: | |
10232 | if (note->namesz == 6 | |
4b24dd1a AM |
10233 | && strcmp (note->namedata, "LINUX") == 0) |
10234 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10235 | else |
4b24dd1a | 10236 | return TRUE; |
cb2366c1 | 10237 | |
0675e188 UW |
10238 | case NT_S390_HIGH_GPRS: |
10239 | if (note->namesz == 6 | |
07d6d2b8 AM |
10240 | && strcmp (note->namedata, "LINUX") == 0) |
10241 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10242 | else |
07d6d2b8 | 10243 | return TRUE; |
0675e188 | 10244 | |
d7eeb400 MS |
10245 | case NT_S390_TIMER: |
10246 | if (note->namesz == 6 | |
07d6d2b8 AM |
10247 | && strcmp (note->namedata, "LINUX") == 0) |
10248 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10249 | else |
07d6d2b8 | 10250 | return TRUE; |
d7eeb400 MS |
10251 | |
10252 | case NT_S390_TODCMP: | |
10253 | if (note->namesz == 6 | |
07d6d2b8 AM |
10254 | && strcmp (note->namedata, "LINUX") == 0) |
10255 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10256 | else |
07d6d2b8 | 10257 | return TRUE; |
d7eeb400 MS |
10258 | |
10259 | case NT_S390_TODPREG: | |
10260 | if (note->namesz == 6 | |
07d6d2b8 AM |
10261 | && strcmp (note->namedata, "LINUX") == 0) |
10262 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10263 | else |
07d6d2b8 | 10264 | return TRUE; |
d7eeb400 MS |
10265 | |
10266 | case NT_S390_CTRS: | |
10267 | if (note->namesz == 6 | |
07d6d2b8 AM |
10268 | && strcmp (note->namedata, "LINUX") == 0) |
10269 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10270 | else |
07d6d2b8 | 10271 | return TRUE; |
d7eeb400 MS |
10272 | |
10273 | case NT_S390_PREFIX: | |
10274 | if (note->namesz == 6 | |
07d6d2b8 AM |
10275 | && strcmp (note->namedata, "LINUX") == 0) |
10276 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10277 | else |
07d6d2b8 | 10278 | return TRUE; |
d7eeb400 | 10279 | |
355b81d9 UW |
10280 | case NT_S390_LAST_BREAK: |
10281 | if (note->namesz == 6 | |
07d6d2b8 AM |
10282 | && strcmp (note->namedata, "LINUX") == 0) |
10283 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10284 | else |
07d6d2b8 | 10285 | return TRUE; |
355b81d9 UW |
10286 | |
10287 | case NT_S390_SYSTEM_CALL: | |
10288 | if (note->namesz == 6 | |
07d6d2b8 AM |
10289 | && strcmp (note->namedata, "LINUX") == 0) |
10290 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10291 | else |
07d6d2b8 | 10292 | return TRUE; |
355b81d9 | 10293 | |
abb3f6cc NC |
10294 | case NT_S390_TDB: |
10295 | if (note->namesz == 6 | |
07d6d2b8 AM |
10296 | && strcmp (note->namedata, "LINUX") == 0) |
10297 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10298 | else |
07d6d2b8 | 10299 | return TRUE; |
abb3f6cc | 10300 | |
4ef9f41a AA |
10301 | case NT_S390_VXRS_LOW: |
10302 | if (note->namesz == 6 | |
10303 | && strcmp (note->namedata, "LINUX") == 0) | |
10304 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10305 | else | |
10306 | return TRUE; | |
10307 | ||
10308 | case NT_S390_VXRS_HIGH: | |
10309 | if (note->namesz == 6 | |
10310 | && strcmp (note->namedata, "LINUX") == 0) | |
10311 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10312 | else | |
10313 | return TRUE; | |
10314 | ||
88ab90e8 AA |
10315 | case NT_S390_GS_CB: |
10316 | if (note->namesz == 6 | |
10317 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10318 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10319 | else |
10320 | return TRUE; | |
10321 | ||
10322 | case NT_S390_GS_BC: | |
10323 | if (note->namesz == 6 | |
10324 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10325 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10326 | else |
10327 | return TRUE; | |
10328 | ||
faa9a424 UW |
10329 | case NT_ARM_VFP: |
10330 | if (note->namesz == 6 | |
10331 | && strcmp (note->namedata, "LINUX") == 0) | |
10332 | return elfcore_grok_arm_vfp (abfd, note); | |
10333 | else | |
10334 | return TRUE; | |
10335 | ||
652451f8 YZ |
10336 | case NT_ARM_TLS: |
10337 | if (note->namesz == 6 | |
10338 | && strcmp (note->namedata, "LINUX") == 0) | |
10339 | return elfcore_grok_aarch_tls (abfd, note); | |
10340 | else | |
10341 | return TRUE; | |
10342 | ||
10343 | case NT_ARM_HW_BREAK: | |
10344 | if (note->namesz == 6 | |
10345 | && strcmp (note->namedata, "LINUX") == 0) | |
10346 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10347 | else | |
10348 | return TRUE; | |
10349 | ||
10350 | case NT_ARM_HW_WATCH: | |
10351 | if (note->namesz == 6 | |
10352 | && strcmp (note->namedata, "LINUX") == 0) | |
10353 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10354 | else | |
10355 | return TRUE; | |
10356 | ||
ad1cc4e4 AH |
10357 | case NT_ARM_SVE: |
10358 | if (note->namesz == 6 | |
10359 | && strcmp (note->namedata, "LINUX") == 0) | |
10360 | return elfcore_grok_aarch_sve (abfd, note); | |
10361 | else | |
10362 | return TRUE; | |
10363 | ||
e6c3b5bf AH |
10364 | case NT_ARM_PAC_MASK: |
10365 | if (note->namesz == 6 | |
10366 | && strcmp (note->namedata, "LINUX") == 0) | |
10367 | return elfcore_grok_aarch_pauth (abfd, note); | |
10368 | else | |
10369 | return TRUE; | |
10370 | ||
252b5132 RH |
10371 | case NT_PRPSINFO: |
10372 | case NT_PSINFO: | |
bb0082d6 AM |
10373 | if (bed->elf_backend_grok_psinfo) |
10374 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10375 | return TRUE; |
bb0082d6 | 10376 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10377 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10378 | #else |
b34976b6 | 10379 | return TRUE; |
252b5132 | 10380 | #endif |
3333a7c3 RM |
10381 | |
10382 | case NT_AUXV: | |
58e07198 | 10383 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10384 | |
451b7c33 TT |
10385 | case NT_FILE: |
10386 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10387 | note); | |
10388 | ||
9015683b TT |
10389 | case NT_SIGINFO: |
10390 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10391 | note); | |
5b2c414d | 10392 | |
252b5132 RH |
10393 | } |
10394 | } | |
10395 | ||
718175fa JK |
10396 | static bfd_boolean |
10397 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10398 | { | |
c74f7d1c | 10399 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10400 | |
10401 | if (note->descsz == 0) | |
10402 | return FALSE; | |
10403 | ||
c74f7d1c JT |
10404 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10405 | if (build_id == NULL) | |
718175fa JK |
10406 | return FALSE; |
10407 | ||
c74f7d1c JT |
10408 | build_id->size = note->descsz; |
10409 | memcpy (build_id->data, note->descdata, note->descsz); | |
10410 | abfd->build_id = build_id; | |
718175fa JK |
10411 | |
10412 | return TRUE; | |
10413 | } | |
10414 | ||
10415 | static bfd_boolean | |
10416 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10417 | { | |
10418 | switch (note->type) | |
10419 | { | |
10420 | default: | |
10421 | return TRUE; | |
10422 | ||
46bed679 L |
10423 | case NT_GNU_PROPERTY_TYPE_0: |
10424 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10425 | ||
718175fa JK |
10426 | case NT_GNU_BUILD_ID: |
10427 | return elfobj_grok_gnu_build_id (abfd, note); | |
10428 | } | |
10429 | } | |
10430 | ||
e21e5835 NC |
10431 | static bfd_boolean |
10432 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10433 | { | |
10434 | struct sdt_note *cur = | |
7a6e0d89 AM |
10435 | (struct sdt_note *) bfd_alloc (abfd, |
10436 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10437 | |
10438 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10439 | cur->size = (bfd_size_type) note->descsz; | |
10440 | memcpy (cur->data, note->descdata, note->descsz); | |
10441 | ||
10442 | elf_tdata (abfd)->sdt_note_head = cur; | |
10443 | ||
10444 | return TRUE; | |
10445 | } | |
10446 | ||
10447 | static bfd_boolean | |
10448 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10449 | { | |
10450 | switch (note->type) | |
10451 | { | |
10452 | case NT_STAPSDT: | |
10453 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10454 | ||
10455 | default: | |
10456 | return TRUE; | |
10457 | } | |
10458 | } | |
10459 | ||
aa1ed4a9 JB |
10460 | static bfd_boolean |
10461 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10462 | { | |
10463 | size_t offset; | |
10464 | ||
b5430a3c | 10465 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10466 | { |
b5430a3c | 10467 | case ELFCLASS32: |
0064d223 JB |
10468 | if (note->descsz < 108) |
10469 | return FALSE; | |
aa1ed4a9 JB |
10470 | break; |
10471 | ||
b5430a3c | 10472 | case ELFCLASS64: |
0064d223 JB |
10473 | if (note->descsz < 120) |
10474 | return FALSE; | |
aa1ed4a9 JB |
10475 | break; |
10476 | ||
10477 | default: | |
10478 | return FALSE; | |
10479 | } | |
10480 | ||
0064d223 JB |
10481 | /* Check for version 1 in pr_version. */ |
10482 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10483 | return FALSE; | |
80a04378 | 10484 | |
0064d223 JB |
10485 | offset = 4; |
10486 | ||
10487 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10488 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10489 | offset += 4; |
10490 | else | |
10491 | { | |
10492 | offset += 4; /* Padding before pr_psinfosz. */ | |
10493 | offset += 8; | |
10494 | } | |
10495 | ||
aa1ed4a9 JB |
10496 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10497 | elf_tdata (abfd)->core->program | |
10498 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10499 | offset += 17; | |
10500 | ||
10501 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10502 | elf_tdata (abfd)->core->command | |
10503 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10504 | offset += 81; |
10505 | ||
10506 | /* Padding before pr_pid. */ | |
10507 | offset += 2; | |
10508 | ||
10509 | /* The pr_pid field was added in version "1a". */ | |
10510 | if (note->descsz < offset + 4) | |
10511 | return TRUE; | |
10512 | ||
10513 | elf_tdata (abfd)->core->pid | |
10514 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10515 | |
10516 | return TRUE; | |
10517 | } | |
10518 | ||
10519 | static bfd_boolean | |
10520 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10521 | { | |
10522 | size_t offset; | |
10523 | size_t size; | |
24d3e51b | 10524 | size_t min_size; |
aa1ed4a9 | 10525 | |
24d3e51b NC |
10526 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10527 | Also compute minimum size of this note. */ | |
b5430a3c | 10528 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10529 | { |
b5430a3c | 10530 | case ELFCLASS32: |
24d3e51b NC |
10531 | offset = 4 + 4; |
10532 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10533 | break; |
10534 | ||
b5430a3c | 10535 | case ELFCLASS64: |
24d3e51b NC |
10536 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10537 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10538 | break; |
10539 | ||
10540 | default: | |
10541 | return FALSE; | |
10542 | } | |
10543 | ||
24d3e51b NC |
10544 | if (note->descsz < min_size) |
10545 | return FALSE; | |
10546 | ||
10547 | /* Check for version 1 in pr_version. */ | |
10548 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10549 | return FALSE; | |
aa1ed4a9 | 10550 | |
24d3e51b NC |
10551 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10552 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10553 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10554 | { |
10555 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10556 | offset += 4 * 2; | |
10557 | } | |
b5430a3c | 10558 | else |
24d3e51b NC |
10559 | { |
10560 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10561 | offset += 8 * 2; | |
10562 | } | |
aa1ed4a9 | 10563 | |
24d3e51b | 10564 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10565 | offset += 4; |
10566 | ||
24d3e51b | 10567 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10568 | if (elf_tdata (abfd)->core->signal == 0) |
10569 | elf_tdata (abfd)->core->signal | |
10570 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10571 | offset += 4; | |
10572 | ||
24d3e51b | 10573 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10574 | elf_tdata (abfd)->core->lwpid |
10575 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10576 | offset += 4; | |
10577 | ||
24d3e51b | 10578 | /* Padding before pr_reg. */ |
b5430a3c | 10579 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10580 | offset += 4; |
10581 | ||
24d3e51b NC |
10582 | /* Make sure that there is enough data remaining in the note. */ |
10583 | if ((note->descsz - offset) < size) | |
10584 | return FALSE; | |
10585 | ||
aa1ed4a9 JB |
10586 | /* Make a ".reg/999" section and a ".reg" section. */ |
10587 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10588 | size, note->descpos + offset); | |
10589 | } | |
10590 | ||
10591 | static bfd_boolean | |
10592 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10593 | { | |
544c67cd JB |
10594 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10595 | ||
aa1ed4a9 JB |
10596 | switch (note->type) |
10597 | { | |
10598 | case NT_PRSTATUS: | |
544c67cd JB |
10599 | if (bed->elf_backend_grok_freebsd_prstatus) |
10600 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10601 | return TRUE; | |
aa1ed4a9 JB |
10602 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10603 | ||
10604 | case NT_FPREGSET: | |
10605 | return elfcore_grok_prfpreg (abfd, note); | |
10606 | ||
10607 | case NT_PRPSINFO: | |
10608 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10609 | ||
10610 | case NT_FREEBSD_THRMISC: | |
10611 | if (note->namesz == 8) | |
10612 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10613 | else | |
10614 | return TRUE; | |
10615 | ||
ddb2bbcf JB |
10616 | case NT_FREEBSD_PROCSTAT_PROC: |
10617 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10618 | note); | |
10619 | ||
10620 | case NT_FREEBSD_PROCSTAT_FILES: | |
10621 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10622 | note); | |
10623 | ||
10624 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10625 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10626 | note); | |
10627 | ||
3350c5f5 | 10628 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10629 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10630 | |
aa1ed4a9 JB |
10631 | case NT_X86_XSTATE: |
10632 | if (note->namesz == 8) | |
10633 | return elfcore_grok_xstatereg (abfd, note); | |
10634 | else | |
10635 | return TRUE; | |
10636 | ||
e6f3b9c3 JB |
10637 | case NT_FREEBSD_PTLWPINFO: |
10638 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10639 | note); | |
10640 | ||
6d5be5d6 JB |
10641 | case NT_ARM_VFP: |
10642 | return elfcore_grok_arm_vfp (abfd, note); | |
10643 | ||
aa1ed4a9 JB |
10644 | default: |
10645 | return TRUE; | |
10646 | } | |
10647 | } | |
10648 | ||
b34976b6 | 10649 | static bfd_boolean |
217aa764 | 10650 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10651 | { |
10652 | char *cp; | |
10653 | ||
10654 | cp = strchr (note->namedata, '@'); | |
10655 | if (cp != NULL) | |
10656 | { | |
d2b64500 | 10657 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10658 | return TRUE; |
50b2bdb7 | 10659 | } |
b34976b6 | 10660 | return FALSE; |
50b2bdb7 AM |
10661 | } |
10662 | ||
b34976b6 | 10663 | static bfd_boolean |
217aa764 | 10664 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10665 | { |
80a04378 NC |
10666 | if (note->descsz <= 0x7c + 31) |
10667 | return FALSE; | |
10668 | ||
50b2bdb7 | 10669 | /* Signal number at offset 0x08. */ |
228e534f | 10670 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10671 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10672 | ||
10673 | /* Process ID at offset 0x50. */ | |
228e534f | 10674 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10675 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10676 | ||
10677 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10678 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10679 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10680 | ||
7720ba9f MK |
10681 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10682 | note); | |
50b2bdb7 AM |
10683 | } |
10684 | ||
b34976b6 | 10685 | static bfd_boolean |
217aa764 | 10686 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10687 | { |
10688 | int lwp; | |
10689 | ||
10690 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10691 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10692 | |
58e07198 | 10693 | switch (note->type) |
50b2bdb7 | 10694 | { |
58e07198 | 10695 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10696 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10697 | find this note before any of the others, which is fine, |
10698 | since the kernel writes this note out first when it | |
10699 | creates a core file. */ | |
50b2bdb7 | 10700 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10701 | #ifdef NT_NETBSDCORE_AUXV |
10702 | case NT_NETBSDCORE_AUXV: | |
10703 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10704 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
10705 | #endif | |
10706 | default: | |
10707 | break; | |
50b2bdb7 AM |
10708 | } |
10709 | ||
58e07198 | 10710 | /* As of March 2017 there are no other machine-independent notes |
b4db1224 JT |
10711 | defined for NetBSD core files. If the note type is less |
10712 | than the start of the machine-dependent note types, we don't | |
10713 | understand it. */ | |
47d9a591 | 10714 | |
b4db1224 | 10715 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10716 | return TRUE; |
50b2bdb7 AM |
10717 | |
10718 | ||
10719 | switch (bfd_get_arch (abfd)) | |
10720 | { | |
08a40648 AM |
10721 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10722 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10723 | |
10724 | case bfd_arch_alpha: | |
10725 | case bfd_arch_sparc: | |
10726 | switch (note->type) | |
08a40648 AM |
10727 | { |
10728 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10729 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10730 | |
08a40648 AM |
10731 | case NT_NETBSDCORE_FIRSTMACH+2: |
10732 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10733 | |
08a40648 AM |
10734 | default: |
10735 | return TRUE; | |
10736 | } | |
50b2bdb7 | 10737 | |
58e07198 CZ |
10738 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
10739 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
10740 | structure which lacks GBR. */ | |
10741 | ||
10742 | case bfd_arch_sh: | |
10743 | switch (note->type) | |
10744 | { | |
10745 | case NT_NETBSDCORE_FIRSTMACH+3: | |
10746 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10747 | ||
10748 | case NT_NETBSDCORE_FIRSTMACH+5: | |
10749 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10750 | ||
10751 | default: | |
10752 | return TRUE; | |
10753 | } | |
10754 | ||
08a40648 AM |
10755 | /* On all other arch's, PT_GETREGS == mach+1 and |
10756 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10757 | |
10758 | default: | |
10759 | switch (note->type) | |
08a40648 AM |
10760 | { |
10761 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10762 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10763 | |
08a40648 AM |
10764 | case NT_NETBSDCORE_FIRSTMACH+3: |
10765 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10766 | |
08a40648 AM |
10767 | default: |
10768 | return TRUE; | |
10769 | } | |
50b2bdb7 AM |
10770 | } |
10771 | /* NOTREACHED */ | |
10772 | } | |
10773 | ||
67cc5033 MK |
10774 | static bfd_boolean |
10775 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10776 | { | |
80a04378 NC |
10777 | if (note->descsz <= 0x48 + 31) |
10778 | return FALSE; | |
10779 | ||
67cc5033 | 10780 | /* Signal number at offset 0x08. */ |
228e534f | 10781 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10782 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10783 | ||
10784 | /* Process ID at offset 0x20. */ | |
228e534f | 10785 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10786 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10787 | ||
10788 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10789 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10790 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10791 | ||
10792 | return TRUE; | |
10793 | } | |
10794 | ||
10795 | static bfd_boolean | |
10796 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10797 | { | |
10798 | if (note->type == NT_OPENBSD_PROCINFO) | |
10799 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10800 | ||
10801 | if (note->type == NT_OPENBSD_REGS) | |
10802 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10803 | ||
10804 | if (note->type == NT_OPENBSD_FPREGS) | |
10805 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10806 | ||
10807 | if (note->type == NT_OPENBSD_XFPREGS) | |
10808 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10809 | ||
10810 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 10811 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
10812 | |
10813 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10814 | { | |
10815 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10816 | SEC_HAS_CONTENTS); | |
10817 | ||
10818 | if (sect == NULL) | |
10819 | return FALSE; | |
10820 | sect->size = note->descsz; | |
10821 | sect->filepos = note->descpos; | |
10822 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10823 | ||
10824 | return TRUE; | |
10825 | } | |
10826 | ||
10827 | return TRUE; | |
10828 | } | |
10829 | ||
07c6e936 | 10830 | static bfd_boolean |
d3fd4074 | 10831 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10832 | { |
10833 | void *ddata = note->descdata; | |
10834 | char buf[100]; | |
10835 | char *name; | |
10836 | asection *sect; | |
f8843e87 AM |
10837 | short sig; |
10838 | unsigned flags; | |
07c6e936 | 10839 | |
80a04378 NC |
10840 | if (note->descsz < 16) |
10841 | return FALSE; | |
10842 | ||
07c6e936 | 10843 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10844 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10845 | |
f8843e87 AM |
10846 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10847 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10848 | ||
10849 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10850 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10851 | |
10852 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10853 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10854 | { | |
228e534f AM |
10855 | elf_tdata (abfd)->core->signal = sig; |
10856 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10857 | } |
07c6e936 | 10858 | |
f8843e87 AM |
10859 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10860 | do not come from signals so we make sure we set the current | |
10861 | thread just in case. */ | |
10862 | if (flags & 0x00000080) | |
228e534f | 10863 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10864 | |
10865 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10866 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10867 | |
a50b1753 | 10868 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10869 | if (name == NULL) |
10870 | return FALSE; | |
10871 | strcpy (name, buf); | |
10872 | ||
117ed4f8 | 10873 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10874 | if (sect == NULL) |
10875 | return FALSE; | |
10876 | ||
07d6d2b8 AM |
10877 | sect->size = note->descsz; |
10878 | sect->filepos = note->descpos; | |
07c6e936 NC |
10879 | sect->alignment_power = 2; |
10880 | ||
10881 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10882 | } | |
10883 | ||
10884 | static bfd_boolean | |
d69f560c KW |
10885 | elfcore_grok_nto_regs (bfd *abfd, |
10886 | Elf_Internal_Note *note, | |
d3fd4074 | 10887 | long tid, |
d69f560c | 10888 | char *base) |
07c6e936 NC |
10889 | { |
10890 | char buf[100]; | |
10891 | char *name; | |
10892 | asection *sect; | |
10893 | ||
d69f560c | 10894 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10895 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10896 | |
a50b1753 | 10897 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10898 | if (name == NULL) |
10899 | return FALSE; | |
10900 | strcpy (name, buf); | |
10901 | ||
117ed4f8 | 10902 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10903 | if (sect == NULL) |
10904 | return FALSE; | |
10905 | ||
07d6d2b8 AM |
10906 | sect->size = note->descsz; |
10907 | sect->filepos = note->descpos; | |
07c6e936 NC |
10908 | sect->alignment_power = 2; |
10909 | ||
f8843e87 | 10910 | /* This is the current thread. */ |
228e534f | 10911 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10912 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10913 | |
10914 | return TRUE; | |
07c6e936 NC |
10915 | } |
10916 | ||
10917 | #define BFD_QNT_CORE_INFO 7 | |
10918 | #define BFD_QNT_CORE_STATUS 8 | |
10919 | #define BFD_QNT_CORE_GREG 9 | |
10920 | #define BFD_QNT_CORE_FPREG 10 | |
10921 | ||
10922 | static bfd_boolean | |
217aa764 | 10923 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10924 | { |
10925 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10926 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10927 | function. */ |
d3fd4074 | 10928 | static long tid = 1; |
07c6e936 NC |
10929 | |
10930 | switch (note->type) | |
10931 | { | |
d69f560c KW |
10932 | case BFD_QNT_CORE_INFO: |
10933 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10934 | case BFD_QNT_CORE_STATUS: | |
10935 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10936 | case BFD_QNT_CORE_GREG: | |
10937 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10938 | case BFD_QNT_CORE_FPREG: | |
10939 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10940 | default: | |
10941 | return TRUE; | |
07c6e936 NC |
10942 | } |
10943 | } | |
10944 | ||
b15fa79e AM |
10945 | static bfd_boolean |
10946 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10947 | { | |
10948 | char *name; | |
10949 | asection *sect; | |
10950 | size_t len; | |
10951 | ||
10952 | /* Use note name as section name. */ | |
10953 | len = note->namesz; | |
a50b1753 | 10954 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10955 | if (name == NULL) |
10956 | return FALSE; | |
10957 | memcpy (name, note->namedata, len); | |
10958 | name[len - 1] = '\0'; | |
10959 | ||
10960 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10961 | if (sect == NULL) | |
10962 | return FALSE; | |
10963 | ||
07d6d2b8 AM |
10964 | sect->size = note->descsz; |
10965 | sect->filepos = note->descpos; | |
b15fa79e AM |
10966 | sect->alignment_power = 1; |
10967 | ||
10968 | return TRUE; | |
10969 | } | |
10970 | ||
7c76fa91 MS |
10971 | /* Function: elfcore_write_note |
10972 | ||
47d9a591 | 10973 | Inputs: |
a39f3346 | 10974 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10975 | name of note |
10976 | type of note | |
10977 | data for note | |
10978 | size of data for note | |
10979 | ||
a39f3346 AM |
10980 | Writes note to end of buffer. ELF64 notes are written exactly as |
10981 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10982 | that they ought to have 8-byte namesz and descsz field, and have | |
10983 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10984 | ||
7c76fa91 | 10985 | Return: |
a39f3346 | 10986 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10987 | |
10988 | char * | |
a39f3346 | 10989 | elfcore_write_note (bfd *abfd, |
217aa764 | 10990 | char *buf, |
a39f3346 | 10991 | int *bufsiz, |
217aa764 | 10992 | const char *name, |
a39f3346 | 10993 | int type, |
217aa764 | 10994 | const void *input, |
a39f3346 | 10995 | int size) |
7c76fa91 MS |
10996 | { |
10997 | Elf_External_Note *xnp; | |
d4c88bbb | 10998 | size_t namesz; |
d4c88bbb | 10999 | size_t newspace; |
a39f3346 | 11000 | char *dest; |
7c76fa91 | 11001 | |
d4c88bbb | 11002 | namesz = 0; |
d4c88bbb | 11003 | if (name != NULL) |
a39f3346 | 11004 | namesz = strlen (name) + 1; |
d4c88bbb | 11005 | |
a39f3346 | 11006 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 11007 | |
a50b1753 | 11008 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
11009 | if (buf == NULL) |
11010 | return buf; | |
a39f3346 | 11011 | dest = buf + *bufsiz; |
7c76fa91 MS |
11012 | *bufsiz += newspace; |
11013 | xnp = (Elf_External_Note *) dest; | |
11014 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
11015 | H_PUT_32 (abfd, size, xnp->descsz); | |
11016 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
11017 | dest = xnp->name; |
11018 | if (name != NULL) | |
11019 | { | |
11020 | memcpy (dest, name, namesz); | |
11021 | dest += namesz; | |
a39f3346 | 11022 | while (namesz & 3) |
d4c88bbb AM |
11023 | { |
11024 | *dest++ = '\0'; | |
a39f3346 | 11025 | ++namesz; |
d4c88bbb AM |
11026 | } |
11027 | } | |
11028 | memcpy (dest, input, size); | |
a39f3346 AM |
11029 | dest += size; |
11030 | while (size & 3) | |
11031 | { | |
11032 | *dest++ = '\0'; | |
11033 | ++size; | |
11034 | } | |
11035 | return buf; | |
7c76fa91 MS |
11036 | } |
11037 | ||
602f1657 AM |
11038 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11039 | possible string truncation. The "truncation" is not a bug. We | |
11040 | have an external representation of structs with fields that are not | |
11041 | necessarily NULL terminated and corresponding internal | |
11042 | representation fields that are one larger so that they can always | |
11043 | be NULL terminated. | |
11044 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11045 | diagnostics inside functions, giving a hard error if you try to use | |
11046 | the finer control available with later versions. | |
11047 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11048 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11049 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11050 | (*) Depending on your system header files! */ | |
d99b4b92 | 11051 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11052 | # pragma GCC diagnostic push |
11053 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11054 | #endif |
7c76fa91 | 11055 | char * |
217aa764 AM |
11056 | elfcore_write_prpsinfo (bfd *abfd, |
11057 | char *buf, | |
11058 | int *bufsiz, | |
11059 | const char *fname, | |
11060 | const char *psargs) | |
7c76fa91 | 11061 | { |
183e98be AM |
11062 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11063 | ||
11064 | if (bed->elf_backend_write_core_note != NULL) | |
11065 | { | |
11066 | char *ret; | |
11067 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11068 | NT_PRPSINFO, fname, psargs); | |
11069 | if (ret != NULL) | |
11070 | return ret; | |
11071 | } | |
7c76fa91 | 11072 | |
1f20dca5 | 11073 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11074 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11075 | if (bed->s->elfclass == ELFCLASS32) |
11076 | { | |
602f1657 | 11077 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11078 | psinfo32_t data; |
11079 | int note_type = NT_PSINFO; | |
602f1657 | 11080 | # else |
183e98be AM |
11081 | prpsinfo32_t data; |
11082 | int note_type = NT_PRPSINFO; | |
602f1657 | 11083 | # endif |
183e98be AM |
11084 | |
11085 | memset (&data, 0, sizeof (data)); | |
11086 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11087 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11088 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11089 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11090 | } |
11091 | else | |
602f1657 | 11092 | # endif |
183e98be | 11093 | { |
602f1657 | 11094 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11095 | psinfo_t data; |
11096 | int note_type = NT_PSINFO; | |
602f1657 | 11097 | # else |
183e98be AM |
11098 | prpsinfo_t data; |
11099 | int note_type = NT_PRPSINFO; | |
602f1657 | 11100 | # endif |
7c76fa91 | 11101 | |
183e98be AM |
11102 | memset (&data, 0, sizeof (data)); |
11103 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11104 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11105 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11106 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11107 | } |
7c76fa91 MS |
11108 | #endif /* PSINFO_T or PRPSINFO_T */ |
11109 | ||
1f20dca5 UW |
11110 | free (buf); |
11111 | return NULL; | |
11112 | } | |
d99b4b92 | 11113 | #if GCC_VERSION >= 8000 |
602f1657 | 11114 | # pragma GCC diagnostic pop |
d99b4b92 | 11115 | #endif |
1f20dca5 | 11116 | |
70a38d42 SDJ |
11117 | char * |
11118 | elfcore_write_linux_prpsinfo32 | |
11119 | (bfd *abfd, char *buf, int *bufsiz, | |
11120 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11121 | { | |
a2f63b2e MR |
11122 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11123 | { | |
11124 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11125 | ||
11126 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11127 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11128 | &data, sizeof (data)); | |
11129 | } | |
11130 | else | |
11131 | { | |
11132 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11133 | |
a2f63b2e MR |
11134 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11135 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11136 | &data, sizeof (data)); | |
11137 | } | |
70a38d42 SDJ |
11138 | } |
11139 | ||
11140 | char * | |
11141 | elfcore_write_linux_prpsinfo64 | |
11142 | (bfd *abfd, char *buf, int *bufsiz, | |
11143 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11144 | { | |
3c9a7b0d MR |
11145 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11146 | { | |
11147 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11148 | ||
11149 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11150 | return elfcore_write_note (abfd, buf, bufsiz, | |
11151 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11152 | } | |
11153 | else | |
11154 | { | |
11155 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11156 | |
3c9a7b0d MR |
11157 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11158 | return elfcore_write_note (abfd, buf, bufsiz, | |
11159 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11160 | } | |
70a38d42 SDJ |
11161 | } |
11162 | ||
7c76fa91 | 11163 | char * |
217aa764 AM |
11164 | elfcore_write_prstatus (bfd *abfd, |
11165 | char *buf, | |
11166 | int *bufsiz, | |
11167 | long pid, | |
11168 | int cursig, | |
11169 | const void *gregs) | |
7c76fa91 | 11170 | { |
183e98be | 11171 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11172 | |
183e98be AM |
11173 | if (bed->elf_backend_write_core_note != NULL) |
11174 | { | |
11175 | char *ret; | |
11176 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11177 | NT_PRSTATUS, | |
11178 | pid, cursig, gregs); | |
11179 | if (ret != NULL) | |
11180 | return ret; | |
11181 | } | |
11182 | ||
1f20dca5 | 11183 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11184 | #if defined (HAVE_PRSTATUS32_T) |
11185 | if (bed->s->elfclass == ELFCLASS32) | |
11186 | { | |
11187 | prstatus32_t prstat; | |
11188 | ||
11189 | memset (&prstat, 0, sizeof (prstat)); | |
11190 | prstat.pr_pid = pid; | |
11191 | prstat.pr_cursig = cursig; | |
11192 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11193 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11194 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11195 | } | |
11196 | else | |
11197 | #endif | |
11198 | { | |
11199 | prstatus_t prstat; | |
11200 | ||
11201 | memset (&prstat, 0, sizeof (prstat)); | |
11202 | prstat.pr_pid = pid; | |
11203 | prstat.pr_cursig = cursig; | |
11204 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11205 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11206 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11207 | } | |
7c76fa91 MS |
11208 | #endif /* HAVE_PRSTATUS_T */ |
11209 | ||
1f20dca5 UW |
11210 | free (buf); |
11211 | return NULL; | |
11212 | } | |
11213 | ||
51316059 MS |
11214 | #if defined (HAVE_LWPSTATUS_T) |
11215 | char * | |
217aa764 AM |
11216 | elfcore_write_lwpstatus (bfd *abfd, |
11217 | char *buf, | |
11218 | int *bufsiz, | |
11219 | long pid, | |
11220 | int cursig, | |
11221 | const void *gregs) | |
51316059 MS |
11222 | { |
11223 | lwpstatus_t lwpstat; | |
183e98be | 11224 | const char *note_name = "CORE"; |
51316059 MS |
11225 | |
11226 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11227 | lwpstat.pr_lwpid = pid >> 16; | |
11228 | lwpstat.pr_cursig = cursig; | |
11229 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11230 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11231 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11232 | #if !defined(gregs) | |
11233 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11234 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11235 | #else | |
11236 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11237 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11238 | #endif | |
11239 | #endif | |
47d9a591 | 11240 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11241 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11242 | } | |
11243 | #endif /* HAVE_LWPSTATUS_T */ | |
11244 | ||
7c76fa91 MS |
11245 | #if defined (HAVE_PSTATUS_T) |
11246 | char * | |
217aa764 AM |
11247 | elfcore_write_pstatus (bfd *abfd, |
11248 | char *buf, | |
11249 | int *bufsiz, | |
11250 | long pid, | |
6c10990d NC |
11251 | int cursig ATTRIBUTE_UNUSED, |
11252 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11253 | { |
183e98be AM |
11254 | const char *note_name = "CORE"; |
11255 | #if defined (HAVE_PSTATUS32_T) | |
11256 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11257 | |
183e98be AM |
11258 | if (bed->s->elfclass == ELFCLASS32) |
11259 | { | |
11260 | pstatus32_t pstat; | |
11261 | ||
11262 | memset (&pstat, 0, sizeof (pstat)); | |
11263 | pstat.pr_pid = pid & 0xffff; | |
11264 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11265 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11266 | return buf; | |
11267 | } | |
11268 | else | |
11269 | #endif | |
11270 | { | |
11271 | pstatus_t pstat; | |
11272 | ||
11273 | memset (&pstat, 0, sizeof (pstat)); | |
11274 | pstat.pr_pid = pid & 0xffff; | |
11275 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11276 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11277 | return buf; | |
11278 | } | |
7c76fa91 MS |
11279 | } |
11280 | #endif /* HAVE_PSTATUS_T */ | |
11281 | ||
11282 | char * | |
217aa764 AM |
11283 | elfcore_write_prfpreg (bfd *abfd, |
11284 | char *buf, | |
11285 | int *bufsiz, | |
11286 | const void *fpregs, | |
11287 | int size) | |
7c76fa91 | 11288 | { |
183e98be | 11289 | const char *note_name = "CORE"; |
47d9a591 | 11290 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11291 | note_name, NT_FPREGSET, fpregs, size); |
11292 | } | |
11293 | ||
11294 | char * | |
217aa764 AM |
11295 | elfcore_write_prxfpreg (bfd *abfd, |
11296 | char *buf, | |
11297 | int *bufsiz, | |
11298 | const void *xfpregs, | |
11299 | int size) | |
7c76fa91 MS |
11300 | { |
11301 | char *note_name = "LINUX"; | |
47d9a591 | 11302 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11303 | note_name, NT_PRXFPREG, xfpregs, size); |
11304 | } | |
11305 | ||
4339cae0 L |
11306 | char * |
11307 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11308 | const void *xfpregs, int size) | |
11309 | { | |
97de3545 JB |
11310 | char *note_name; |
11311 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11312 | note_name = "FreeBSD"; | |
11313 | else | |
11314 | note_name = "LINUX"; | |
4339cae0 L |
11315 | return elfcore_write_note (abfd, buf, bufsiz, |
11316 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11317 | } | |
11318 | ||
97753bd5 AM |
11319 | char * |
11320 | elfcore_write_ppc_vmx (bfd *abfd, | |
11321 | char *buf, | |
11322 | int *bufsiz, | |
11323 | const void *ppc_vmx, | |
11324 | int size) | |
11325 | { | |
11326 | char *note_name = "LINUX"; | |
11327 | return elfcore_write_note (abfd, buf, bufsiz, | |
11328 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11329 | } | |
11330 | ||
89eeb0bc LM |
11331 | char * |
11332 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11333 | char *buf, |
11334 | int *bufsiz, | |
11335 | const void *ppc_vsx, | |
11336 | int size) | |
89eeb0bc LM |
11337 | { |
11338 | char *note_name = "LINUX"; | |
11339 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11340 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11341 | } |
11342 | ||
cb2366c1 EBM |
11343 | char * |
11344 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11345 | char *buf, |
11346 | int *bufsiz, | |
11347 | const void *ppc_tar, | |
11348 | int size) | |
cb2366c1 EBM |
11349 | { |
11350 | char *note_name = "LINUX"; | |
11351 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11352 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11353 | } |
11354 | ||
11355 | char * | |
11356 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11357 | char *buf, |
11358 | int *bufsiz, | |
11359 | const void *ppc_ppr, | |
11360 | int size) | |
cb2366c1 EBM |
11361 | { |
11362 | char *note_name = "LINUX"; | |
11363 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11364 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11365 | } |
11366 | ||
11367 | char * | |
11368 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11369 | char *buf, |
11370 | int *bufsiz, | |
11371 | const void *ppc_dscr, | |
11372 | int size) | |
cb2366c1 EBM |
11373 | { |
11374 | char *note_name = "LINUX"; | |
11375 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11376 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11377 | } |
11378 | ||
11379 | char * | |
11380 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11381 | char *buf, |
11382 | int *bufsiz, | |
11383 | const void *ppc_ebb, | |
11384 | int size) | |
cb2366c1 EBM |
11385 | { |
11386 | char *note_name = "LINUX"; | |
11387 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11388 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11389 | } |
11390 | ||
11391 | char * | |
11392 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11393 | char *buf, |
11394 | int *bufsiz, | |
11395 | const void *ppc_pmu, | |
11396 | int size) | |
cb2366c1 EBM |
11397 | { |
11398 | char *note_name = "LINUX"; | |
11399 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11400 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11401 | } |
11402 | ||
11403 | char * | |
11404 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11405 | char *buf, |
11406 | int *bufsiz, | |
11407 | const void *ppc_tm_cgpr, | |
11408 | int size) | |
cb2366c1 EBM |
11409 | { |
11410 | char *note_name = "LINUX"; | |
11411 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11412 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11413 | } |
11414 | ||
11415 | char * | |
11416 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11417 | char *buf, |
11418 | int *bufsiz, | |
11419 | const void *ppc_tm_cfpr, | |
11420 | int size) | |
cb2366c1 EBM |
11421 | { |
11422 | char *note_name = "LINUX"; | |
11423 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11424 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11425 | } |
11426 | ||
11427 | char * | |
11428 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11429 | char *buf, |
11430 | int *bufsiz, | |
11431 | const void *ppc_tm_cvmx, | |
11432 | int size) | |
cb2366c1 EBM |
11433 | { |
11434 | char *note_name = "LINUX"; | |
11435 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11436 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11437 | } |
11438 | ||
11439 | char * | |
11440 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11441 | char *buf, |
11442 | int *bufsiz, | |
11443 | const void *ppc_tm_cvsx, | |
11444 | int size) | |
cb2366c1 EBM |
11445 | { |
11446 | char *note_name = "LINUX"; | |
11447 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11448 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11449 | } |
11450 | ||
11451 | char * | |
11452 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11453 | char *buf, |
11454 | int *bufsiz, | |
11455 | const void *ppc_tm_spr, | |
11456 | int size) | |
cb2366c1 EBM |
11457 | { |
11458 | char *note_name = "LINUX"; | |
11459 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11460 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11461 | } |
11462 | ||
11463 | char * | |
11464 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11465 | char *buf, |
11466 | int *bufsiz, | |
11467 | const void *ppc_tm_ctar, | |
11468 | int size) | |
cb2366c1 EBM |
11469 | { |
11470 | char *note_name = "LINUX"; | |
11471 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11472 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11473 | } |
11474 | ||
11475 | char * | |
11476 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11477 | char *buf, |
11478 | int *bufsiz, | |
11479 | const void *ppc_tm_cppr, | |
11480 | int size) | |
cb2366c1 EBM |
11481 | { |
11482 | char *note_name = "LINUX"; | |
11483 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11484 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11485 | } |
11486 | ||
11487 | char * | |
11488 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11489 | char *buf, |
11490 | int *bufsiz, | |
11491 | const void *ppc_tm_cdscr, | |
11492 | int size) | |
cb2366c1 EBM |
11493 | { |
11494 | char *note_name = "LINUX"; | |
11495 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11496 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11497 | } |
11498 | ||
0675e188 UW |
11499 | static char * |
11500 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11501 | char *buf, | |
11502 | int *bufsiz, | |
11503 | const void *s390_high_gprs, | |
11504 | int size) | |
11505 | { | |
11506 | char *note_name = "LINUX"; | |
11507 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11508 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11509 | s390_high_gprs, size); |
11510 | } | |
11511 | ||
d7eeb400 MS |
11512 | char * |
11513 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11514 | char *buf, |
11515 | int *bufsiz, | |
11516 | const void *s390_timer, | |
11517 | int size) | |
d7eeb400 MS |
11518 | { |
11519 | char *note_name = "LINUX"; | |
11520 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11521 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11522 | } |
11523 | ||
11524 | char * | |
11525 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11526 | char *buf, |
11527 | int *bufsiz, | |
11528 | const void *s390_todcmp, | |
11529 | int size) | |
d7eeb400 MS |
11530 | { |
11531 | char *note_name = "LINUX"; | |
11532 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11533 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11534 | } |
11535 | ||
11536 | char * | |
11537 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11538 | char *buf, |
11539 | int *bufsiz, | |
11540 | const void *s390_todpreg, | |
11541 | int size) | |
d7eeb400 MS |
11542 | { |
11543 | char *note_name = "LINUX"; | |
11544 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11545 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11546 | } |
11547 | ||
11548 | char * | |
11549 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11550 | char *buf, |
11551 | int *bufsiz, | |
11552 | const void *s390_ctrs, | |
11553 | int size) | |
d7eeb400 MS |
11554 | { |
11555 | char *note_name = "LINUX"; | |
11556 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11557 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11558 | } |
11559 | ||
11560 | char * | |
11561 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11562 | char *buf, |
11563 | int *bufsiz, | |
11564 | const void *s390_prefix, | |
11565 | int size) | |
d7eeb400 MS |
11566 | { |
11567 | char *note_name = "LINUX"; | |
11568 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11569 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11570 | } |
11571 | ||
355b81d9 UW |
11572 | char * |
11573 | elfcore_write_s390_last_break (bfd *abfd, | |
11574 | char *buf, | |
11575 | int *bufsiz, | |
11576 | const void *s390_last_break, | |
11577 | int size) | |
11578 | { | |
11579 | char *note_name = "LINUX"; | |
11580 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11581 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11582 | s390_last_break, size); |
11583 | } | |
11584 | ||
11585 | char * | |
11586 | elfcore_write_s390_system_call (bfd *abfd, | |
11587 | char *buf, | |
11588 | int *bufsiz, | |
11589 | const void *s390_system_call, | |
11590 | int size) | |
11591 | { | |
11592 | char *note_name = "LINUX"; | |
11593 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11594 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11595 | s390_system_call, size); |
11596 | } | |
11597 | ||
abb3f6cc NC |
11598 | char * |
11599 | elfcore_write_s390_tdb (bfd *abfd, | |
11600 | char *buf, | |
11601 | int *bufsiz, | |
11602 | const void *s390_tdb, | |
11603 | int size) | |
11604 | { | |
11605 | char *note_name = "LINUX"; | |
11606 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11607 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11608 | } |
11609 | ||
4ef9f41a AA |
11610 | char * |
11611 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11612 | char *buf, | |
11613 | int *bufsiz, | |
11614 | const void *s390_vxrs_low, | |
11615 | int size) | |
11616 | { | |
11617 | char *note_name = "LINUX"; | |
11618 | return elfcore_write_note (abfd, buf, bufsiz, | |
11619 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11620 | } | |
11621 | ||
11622 | char * | |
11623 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11624 | char *buf, | |
11625 | int *bufsiz, | |
11626 | const void *s390_vxrs_high, | |
11627 | int size) | |
11628 | { | |
11629 | char *note_name = "LINUX"; | |
11630 | return elfcore_write_note (abfd, buf, bufsiz, | |
11631 | note_name, NT_S390_VXRS_HIGH, | |
11632 | s390_vxrs_high, size); | |
11633 | } | |
11634 | ||
88ab90e8 AA |
11635 | char * |
11636 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11637 | char *buf, | |
11638 | int *bufsiz, | |
11639 | const void *s390_gs_cb, | |
11640 | int size) | |
11641 | { | |
11642 | char *note_name = "LINUX"; | |
11643 | return elfcore_write_note (abfd, buf, bufsiz, | |
11644 | note_name, NT_S390_GS_CB, | |
11645 | s390_gs_cb, size); | |
11646 | } | |
11647 | ||
11648 | char * | |
11649 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11650 | char *buf, | |
11651 | int *bufsiz, | |
11652 | const void *s390_gs_bc, | |
11653 | int size) | |
11654 | { | |
11655 | char *note_name = "LINUX"; | |
11656 | return elfcore_write_note (abfd, buf, bufsiz, | |
11657 | note_name, NT_S390_GS_BC, | |
11658 | s390_gs_bc, size); | |
11659 | } | |
11660 | ||
faa9a424 UW |
11661 | char * |
11662 | elfcore_write_arm_vfp (bfd *abfd, | |
11663 | char *buf, | |
11664 | int *bufsiz, | |
11665 | const void *arm_vfp, | |
11666 | int size) | |
11667 | { | |
11668 | char *note_name = "LINUX"; | |
11669 | return elfcore_write_note (abfd, buf, bufsiz, | |
11670 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11671 | } | |
11672 | ||
652451f8 YZ |
11673 | char * |
11674 | elfcore_write_aarch_tls (bfd *abfd, | |
11675 | char *buf, | |
11676 | int *bufsiz, | |
11677 | const void *aarch_tls, | |
11678 | int size) | |
11679 | { | |
11680 | char *note_name = "LINUX"; | |
11681 | return elfcore_write_note (abfd, buf, bufsiz, | |
11682 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11683 | } | |
11684 | ||
11685 | char * | |
11686 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11687 | char *buf, | |
11688 | int *bufsiz, | |
11689 | const void *aarch_hw_break, | |
11690 | int size) | |
11691 | { | |
11692 | char *note_name = "LINUX"; | |
11693 | return elfcore_write_note (abfd, buf, bufsiz, | |
11694 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11695 | } | |
11696 | ||
11697 | char * | |
11698 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11699 | char *buf, | |
11700 | int *bufsiz, | |
11701 | const void *aarch_hw_watch, | |
11702 | int size) | |
11703 | { | |
11704 | char *note_name = "LINUX"; | |
11705 | return elfcore_write_note (abfd, buf, bufsiz, | |
11706 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11707 | } | |
11708 | ||
ad1cc4e4 AH |
11709 | char * |
11710 | elfcore_write_aarch_sve (bfd *abfd, | |
11711 | char *buf, | |
11712 | int *bufsiz, | |
11713 | const void *aarch_sve, | |
11714 | int size) | |
11715 | { | |
11716 | char *note_name = "LINUX"; | |
11717 | return elfcore_write_note (abfd, buf, bufsiz, | |
11718 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11719 | } | |
11720 | ||
e6c3b5bf AH |
11721 | char * |
11722 | elfcore_write_aarch_pauth (bfd *abfd, | |
11723 | char *buf, | |
11724 | int *bufsiz, | |
11725 | const void *aarch_pauth, | |
11726 | int size) | |
11727 | { | |
11728 | char *note_name = "LINUX"; | |
11729 | return elfcore_write_note (abfd, buf, bufsiz, | |
11730 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11731 | } | |
11732 | ||
bb864ac1 CES |
11733 | char * |
11734 | elfcore_write_register_note (bfd *abfd, | |
11735 | char *buf, | |
11736 | int *bufsiz, | |
11737 | const char *section, | |
11738 | const void *data, | |
11739 | int size) | |
11740 | { | |
11741 | if (strcmp (section, ".reg2") == 0) | |
11742 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11743 | if (strcmp (section, ".reg-xfp") == 0) | |
11744 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11745 | if (strcmp (section, ".reg-xstate") == 0) |
11746 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11747 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11748 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11749 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11750 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11751 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11752 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11753 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11754 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11755 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11756 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11757 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11758 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11759 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11760 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11761 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11762 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11763 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11764 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11765 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11766 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11767 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11768 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11769 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11770 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11771 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11772 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11773 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11774 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11775 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11776 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11777 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11778 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11779 | if (strcmp (section, ".reg-s390-timer") == 0) |
11780 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11781 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11782 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11783 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11784 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11785 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11786 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11787 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11788 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11789 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11790 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11791 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11792 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11793 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11794 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11795 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11796 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11797 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11798 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11799 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11800 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11801 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11802 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11803 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11804 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11805 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11806 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11807 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11808 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11809 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11810 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11811 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11812 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
11813 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
11814 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11815 | return NULL; |
11816 | } | |
11817 | ||
b34976b6 | 11818 | static bfd_boolean |
276da9b3 L |
11819 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11820 | size_t align) | |
252b5132 | 11821 | { |
c044fabd | 11822 | char *p; |
252b5132 | 11823 | |
276da9b3 L |
11824 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11825 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11826 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11827 | align is less than 4, we use 4 byte alignment. */ | |
11828 | if (align < 4) | |
11829 | align = 4; | |
ef135d43 NC |
11830 | if (align != 4 && align != 8) |
11831 | return FALSE; | |
276da9b3 | 11832 | |
252b5132 RH |
11833 | p = buf; |
11834 | while (p < buf + size) | |
11835 | { | |
c044fabd | 11836 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11837 | Elf_Internal_Note in; |
11838 | ||
baea7ef1 AM |
11839 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11840 | return FALSE; | |
11841 | ||
dc810e39 | 11842 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11843 | |
dc810e39 | 11844 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11845 | in.namedata = xnp->name; |
baea7ef1 AM |
11846 | if (in.namesz > buf - in.namedata + size) |
11847 | return FALSE; | |
252b5132 | 11848 | |
dc810e39 | 11849 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11850 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11851 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11852 | if (in.descsz != 0 |
11853 | && (in.descdata >= buf + size | |
11854 | || in.descsz > buf - in.descdata + size)) | |
11855 | return FALSE; | |
252b5132 | 11856 | |
718175fa | 11857 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11858 | { |
718175fa JK |
11859 | default: |
11860 | return TRUE; | |
11861 | ||
11862 | case bfd_core: | |
f64e188b | 11863 | { |
8acbedd6 | 11864 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11865 | struct |
718175fa | 11866 | { |
f64e188b | 11867 | const char * string; |
8acbedd6 | 11868 | size_t len; |
f64e188b | 11869 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11870 | } |
f64e188b | 11871 | grokers[] = |
b15fa79e | 11872 | { |
8acbedd6 | 11873 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11874 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11875 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11876 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11877 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
864619bb KS |
11878 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
11879 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note) | |
f64e188b | 11880 | }; |
8acbedd6 | 11881 | #undef GROKER_ELEMENT |
f64e188b NC |
11882 | int i; |
11883 | ||
11884 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11885 | { |
11886 | if (in.namesz >= grokers[i].len | |
11887 | && strncmp (in.namedata, grokers[i].string, | |
11888 | grokers[i].len) == 0) | |
11889 | { | |
11890 | if (! grokers[i].func (abfd, & in)) | |
11891 | return FALSE; | |
11892 | break; | |
11893 | } | |
11894 | } | |
f64e188b NC |
11895 | break; |
11896 | } | |
718175fa JK |
11897 | |
11898 | case bfd_object: | |
11899 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11900 | { | |
11901 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11902 | return FALSE; | |
11903 | } | |
e21e5835 NC |
11904 | else if (in.namesz == sizeof "stapsdt" |
11905 | && strcmp (in.namedata, "stapsdt") == 0) | |
11906 | { | |
11907 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11908 | return FALSE; | |
11909 | } | |
718175fa | 11910 | break; |
08a40648 | 11911 | } |
252b5132 | 11912 | |
276da9b3 | 11913 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11914 | } |
11915 | ||
718175fa JK |
11916 | return TRUE; |
11917 | } | |
11918 | ||
864619bb | 11919 | bfd_boolean |
276da9b3 L |
11920 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11921 | size_t align) | |
718175fa JK |
11922 | { |
11923 | char *buf; | |
11924 | ||
957e1fc1 | 11925 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11926 | return TRUE; |
11927 | ||
11928 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11929 | return FALSE; | |
11930 | ||
2bb3687b | 11931 | buf = (char *) _bfd_malloc_and_read (abfd, size + 1, size); |
718175fa JK |
11932 | if (buf == NULL) |
11933 | return FALSE; | |
11934 | ||
f64e188b NC |
11935 | /* PR 17512: file: ec08f814 |
11936 | 0-termintate the buffer so that string searches will not overflow. */ | |
11937 | buf[size] = 0; | |
11938 | ||
2bb3687b | 11939 | if (!elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11940 | { |
11941 | free (buf); | |
11942 | return FALSE; | |
11943 | } | |
11944 | ||
252b5132 | 11945 | free (buf); |
b34976b6 | 11946 | return TRUE; |
252b5132 | 11947 | } |
98d8431c JB |
11948 | \f |
11949 | /* Providing external access to the ELF program header table. */ | |
11950 | ||
11951 | /* Return an upper bound on the number of bytes required to store a | |
11952 | copy of ABFD's program header table entries. Return -1 if an error | |
11953 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11954 | |
98d8431c | 11955 | long |
217aa764 | 11956 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11957 | { |
11958 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11959 | { | |
11960 | bfd_set_error (bfd_error_wrong_format); | |
11961 | return -1; | |
11962 | } | |
11963 | ||
936e320b | 11964 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11965 | } |
11966 | ||
98d8431c JB |
11967 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11968 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11969 | defined in include/elf/internal.h. To find out how large the | |
11970 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11971 | ||
11972 | Return the number of program header table entries read, or -1 if an | |
11973 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11974 | |
98d8431c | 11975 | int |
217aa764 | 11976 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11977 | { |
11978 | int num_phdrs; | |
11979 | ||
11980 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11981 | { | |
11982 | bfd_set_error (bfd_error_wrong_format); | |
11983 | return -1; | |
11984 | } | |
11985 | ||
11986 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
11987 | if (num_phdrs != 0) |
11988 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
11989 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
11990 | |
11991 | return num_phdrs; | |
11992 | } | |
ae4221d7 | 11993 | |
db6751f2 | 11994 | enum elf_reloc_type_class |
7e612e98 AM |
11995 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11996 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11997 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11998 | { |
11999 | return reloc_class_normal; | |
12000 | } | |
f8df10f4 | 12001 | |
47d9a591 | 12002 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
12003 | relocation against a local symbol. */ |
12004 | ||
12005 | bfd_vma | |
217aa764 AM |
12006 | _bfd_elf_rela_local_sym (bfd *abfd, |
12007 | Elf_Internal_Sym *sym, | |
8517fae7 | 12008 | asection **psec, |
217aa764 | 12009 | Elf_Internal_Rela *rel) |
f8df10f4 | 12010 | { |
8517fae7 | 12011 | asection *sec = *psec; |
f8df10f4 JJ |
12012 | bfd_vma relocation; |
12013 | ||
6835821b AM |
12014 | relocation = (sec->output_section->vma |
12015 | + sec->output_offset | |
12016 | + sym->st_value); | |
f8df10f4 | 12017 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 12018 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 12019 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 12020 | { |
f8df10f4 | 12021 | rel->r_addend = |
8517fae7 | 12022 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 12023 | elf_section_data (sec)->sec_info, |
753731ee AM |
12024 | sym->st_value + rel->r_addend); |
12025 | if (sec != *psec) | |
12026 | { | |
12027 | /* If we have changed the section, and our original section is | |
12028 | marked with SEC_EXCLUDE, it means that the original | |
12029 | SEC_MERGE section has been completely subsumed in some | |
12030 | other SEC_MERGE section. In this case, we need to leave | |
12031 | some info around for --emit-relocs. */ | |
12032 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12033 | sec->kept_section = *psec; | |
12034 | sec = *psec; | |
12035 | } | |
8517fae7 AM |
12036 | rel->r_addend -= relocation; |
12037 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12038 | } |
12039 | return relocation; | |
12040 | } | |
c629eae0 JJ |
12041 | |
12042 | bfd_vma | |
217aa764 AM |
12043 | _bfd_elf_rel_local_sym (bfd *abfd, |
12044 | Elf_Internal_Sym *sym, | |
12045 | asection **psec, | |
12046 | bfd_vma addend) | |
47d9a591 | 12047 | { |
c629eae0 JJ |
12048 | asection *sec = *psec; |
12049 | ||
6835821b | 12050 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12051 | return sym->st_value + addend; |
12052 | ||
12053 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12054 | elf_section_data (sec)->sec_info, |
753731ee | 12055 | sym->st_value + addend); |
c629eae0 JJ |
12056 | } |
12057 | ||
37b01f6a DG |
12058 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12059 | the new offset within the section, based upon changes made to the | |
12060 | section. Returns -1 if the offset is now invalid. | |
12061 | The offset (in abnd out) is in target sized bytes, however big a | |
12062 | byte may be. */ | |
12063 | ||
c629eae0 | 12064 | bfd_vma |
217aa764 | 12065 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12066 | struct bfd_link_info *info, |
217aa764 AM |
12067 | asection *sec, |
12068 | bfd_vma offset) | |
c629eae0 | 12069 | { |
68bfbfcc | 12070 | switch (sec->sec_info_type) |
65765700 | 12071 | { |
dbaa2011 | 12072 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12073 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12074 | offset); | |
dbaa2011 | 12075 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12076 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12077 | |
65765700 | 12078 | default: |
310fd250 L |
12079 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12080 | { | |
37b01f6a | 12081 | /* Reverse the offset. */ |
310fd250 L |
12082 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12083 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12084 | |
12085 | /* address_size and sec->size are in octets. Convert | |
12086 | to bytes before subtracting the original offset. */ | |
61826503 | 12087 | offset = ((sec->size - address_size) |
bb294208 | 12088 | / bfd_octets_per_byte (abfd, sec) - offset); |
310fd250 | 12089 | } |
65765700 JJ |
12090 | return offset; |
12091 | } | |
c629eae0 | 12092 | } |
3333a7c3 RM |
12093 | \f |
12094 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12095 | reconstruct an ELF file by reading the segments out of remote memory | |
12096 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12097 | points to. If not null, *LOADBASEP is filled in with the difference | |
12098 | between the VMAs from which the segments were read, and the VMAs the | |
12099 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12100 | ||
12101 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12102 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12103 | should return zero on success or an `errno' code on failure. TEMPL must | |
12104 | be a BFD for an ELF target with the word size and byte order found in | |
12105 | the remote memory. */ | |
12106 | ||
12107 | bfd * | |
217aa764 AM |
12108 | bfd_elf_bfd_from_remote_memory |
12109 | (bfd *templ, | |
12110 | bfd_vma ehdr_vma, | |
f0a5d95a | 12111 | bfd_size_type size, |
217aa764 | 12112 | bfd_vma *loadbasep, |
fe78531d | 12113 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12114 | { |
12115 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12116 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12117 | } |
4c45e5c9 JJ |
12118 | \f |
12119 | long | |
c9727e01 AM |
12120 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12121 | long symcount ATTRIBUTE_UNUSED, | |
12122 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12123 | long dynsymcount, |
c9727e01 AM |
12124 | asymbol **dynsyms, |
12125 | asymbol **ret) | |
4c45e5c9 JJ |
12126 | { |
12127 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12128 | asection *relplt; | |
12129 | asymbol *s; | |
12130 | const char *relplt_name; | |
12131 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
12132 | arelent *p; | |
12133 | long count, i, n; | |
12134 | size_t size; | |
12135 | Elf_Internal_Shdr *hdr; | |
12136 | char *names; | |
12137 | asection *plt; | |
12138 | ||
8615f3f2 AM |
12139 | *ret = NULL; |
12140 | ||
90e3cdf2 JJ |
12141 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12142 | return 0; | |
12143 | ||
8615f3f2 AM |
12144 | if (dynsymcount <= 0) |
12145 | return 0; | |
12146 | ||
4c45e5c9 JJ |
12147 | if (!bed->plt_sym_val) |
12148 | return 0; | |
12149 | ||
12150 | relplt_name = bed->relplt_name; | |
12151 | if (relplt_name == NULL) | |
d35fd659 | 12152 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12153 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12154 | if (relplt == NULL) | |
12155 | return 0; | |
12156 | ||
12157 | hdr = &elf_section_data (relplt)->this_hdr; | |
12158 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12159 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12160 | return 0; | |
12161 | ||
12162 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12163 | if (plt == NULL) | |
12164 | return 0; | |
12165 | ||
12166 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 12167 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
12168 | return -1; |
12169 | ||
eea6121a | 12170 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12171 | size = count * sizeof (asymbol); |
12172 | p = relplt->relocation; | |
cb53bf42 | 12173 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12174 | { |
12175 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12176 | if (p->addend != 0) | |
12177 | { | |
12178 | #ifdef BFD64 | |
12179 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12180 | #else | |
12181 | size += sizeof ("+0x") - 1 + 8; | |
12182 | #endif | |
12183 | } | |
12184 | } | |
4c45e5c9 | 12185 | |
a50b1753 | 12186 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12187 | if (s == NULL) |
12188 | return -1; | |
12189 | ||
12190 | names = (char *) (s + count); | |
12191 | p = relplt->relocation; | |
12192 | n = 0; | |
cb53bf42 | 12193 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12194 | { |
12195 | size_t len; | |
12196 | bfd_vma addr; | |
12197 | ||
12198 | addr = bed->plt_sym_val (i, plt, p); | |
12199 | if (addr == (bfd_vma) -1) | |
12200 | continue; | |
12201 | ||
12202 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12203 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12204 | we are defining a symbol, ensure one of them is set. */ | |
12205 | if ((s->flags & BSF_LOCAL) == 0) | |
12206 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12207 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12208 | s->section = plt; |
12209 | s->value = addr - plt->vma; | |
12210 | s->name = names; | |
8f39ba8e | 12211 | s->udata.p = NULL; |
4c45e5c9 JJ |
12212 | len = strlen ((*p->sym_ptr_ptr)->name); |
12213 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12214 | names += len; | |
041de40d AM |
12215 | if (p->addend != 0) |
12216 | { | |
1d770845 | 12217 | char buf[30], *a; |
d324f6d6 | 12218 | |
041de40d AM |
12219 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12220 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12221 | bfd_sprintf_vma (abfd, buf, p->addend); |
12222 | for (a = buf; *a == '0'; ++a) | |
12223 | ; | |
12224 | len = strlen (a); | |
12225 | memcpy (names, a, len); | |
12226 | names += len; | |
041de40d | 12227 | } |
4c45e5c9 JJ |
12228 | memcpy (names, "@plt", sizeof ("@plt")); |
12229 | names += sizeof ("@plt"); | |
8f39ba8e | 12230 | ++s, ++n; |
4c45e5c9 JJ |
12231 | } |
12232 | ||
12233 | return n; | |
12234 | } | |
3d7f7666 | 12235 | |
821e6ff6 AM |
12236 | /* It is only used by x86-64 so far. |
12237 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12238 | but current usage would allow all of _bfd_std_section to be zero. */ |
12239 | static const asymbol lcomm_sym | |
12240 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12241 | asection _bfd_elf_large_com_section |
7eacd66b | 12242 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12243 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12244 | |
cc364be6 AM |
12245 | bfd_boolean |
12246 | _bfd_elf_final_write_processing (bfd *abfd) | |
06f44071 AM |
12247 | { |
12248 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12249 | |
12250 | i_ehdrp = elf_elfheader (abfd); | |
12251 | ||
06f44071 AM |
12252 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12253 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12254 | |
df3a023b AM |
12255 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
12256 | SHF_GNU_MBIND sections or symbols of STT_GNU_IFUNC type or | |
12257 | STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12258 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12259 | { | |
12260 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12261 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12262 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12263 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12264 | { | |
12265 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
12266 | _bfd_error_handler (_("GNU_MBIND section is unsupported")); | |
12267 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) | |
12268 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is unsupported")); | |
12269 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) | |
12270 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is unsupported")); | |
9aea1e31 | 12271 | bfd_set_error (bfd_error_sorry); |
cc364be6 AM |
12272 | return FALSE; |
12273 | } | |
12274 | } | |
12275 | return TRUE; | |
d1036acb | 12276 | } |
fcb93ecf PB |
12277 | |
12278 | ||
12279 | /* Return TRUE for ELF symbol types that represent functions. | |
12280 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12281 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12282 | |
12283 | bfd_boolean | |
12284 | _bfd_elf_is_function_type (unsigned int type) | |
12285 | { | |
d8045f23 NC |
12286 | return (type == STT_FUNC |
12287 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12288 | } |
9f296da3 | 12289 | |
aef36ac1 AM |
12290 | /* If the ELF symbol SYM might be a function in SEC, return the |
12291 | function size and set *CODE_OFF to the function's entry point, | |
12292 | otherwise return zero. */ | |
9f296da3 | 12293 | |
aef36ac1 AM |
12294 | bfd_size_type |
12295 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12296 | bfd_vma *code_off) | |
9f296da3 | 12297 | { |
aef36ac1 AM |
12298 | bfd_size_type size; |
12299 | ||
ff9e0f5b | 12300 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12301 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12302 | || sym->section != sec) | |
12303 | return 0; | |
ff9e0f5b | 12304 | |
ff9e0f5b | 12305 | *code_off = sym->value; |
aef36ac1 AM |
12306 | size = 0; |
12307 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12308 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12309 | if (size == 0) | |
12310 | size = 1; | |
12311 | return size; | |
9f296da3 | 12312 | } |