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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); |
c9594989 | 516 | free (alloc_intsym); |
8384fb8f AM |
517 | intsym_buf = NULL; |
518 | goto out; | |
519 | } | |
6cdc0ccc AM |
520 | |
521 | out: | |
c9594989 AM |
522 | free (alloc_ext); |
523 | free (alloc_extshndx); | |
6cdc0ccc AM |
524 | |
525 | return intsym_buf; | |
526 | } | |
527 | ||
5cab59f6 AM |
528 | /* Look up a symbol name. */ |
529 | const char * | |
be8dd2ca AM |
530 | bfd_elf_sym_name (bfd *abfd, |
531 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
532 | Elf_Internal_Sym *isym, |
533 | asection *sym_sec) | |
5cab59f6 | 534 | { |
26c61ae5 | 535 | const char *name; |
5cab59f6 | 536 | unsigned int iname = isym->st_name; |
be8dd2ca | 537 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 538 | |
138f35cc JJ |
539 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
540 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 541 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
542 | { |
543 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
544 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
545 | } | |
546 | ||
26c61ae5 L |
547 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
548 | if (name == NULL) | |
549 | name = "(null)"; | |
550 | else if (sym_sec && *name == '\0') | |
fd361982 | 551 | name = bfd_section_name (sym_sec); |
26c61ae5 L |
552 | |
553 | return name; | |
5cab59f6 AM |
554 | } |
555 | ||
dbb410c3 AM |
556 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
557 | sections. The first element is the flags, the rest are section | |
558 | pointers. */ | |
559 | ||
560 | typedef union elf_internal_group { | |
561 | Elf_Internal_Shdr *shdr; | |
562 | unsigned int flags; | |
563 | } Elf_Internal_Group; | |
564 | ||
b885599b AM |
565 | /* Return the name of the group signature symbol. Why isn't the |
566 | signature just a string? */ | |
567 | ||
568 | static const char * | |
217aa764 | 569 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 570 | { |
9dce4196 | 571 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
572 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
573 | Elf_External_Sym_Shndx eshndx; | |
574 | Elf_Internal_Sym isym; | |
b885599b | 575 | |
13792e9d L |
576 | /* First we need to ensure the symbol table is available. Make sure |
577 | that it is a symbol table section. */ | |
4fbb74a6 AM |
578 | if (ghdr->sh_link >= elf_numsections (abfd)) |
579 | return NULL; | |
13792e9d L |
580 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
581 | if (hdr->sh_type != SHT_SYMTAB | |
582 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
583 | return NULL; |
584 | ||
9dce4196 AM |
585 | /* Go read the symbol. */ |
586 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
587 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
588 | &isym, esym, &eshndx) == NULL) | |
b885599b | 589 | return NULL; |
9dce4196 | 590 | |
26c61ae5 | 591 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
592 | } |
593 | ||
dbb410c3 AM |
594 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
595 | ||
b34976b6 | 596 | static bfd_boolean |
217aa764 | 597 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
598 | { |
599 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
600 | ||
601 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
602 | is set to -1 if there are no SHT_GROUP sections. */ | |
603 | if (num_group == 0) | |
604 | { | |
605 | unsigned int i, shnum; | |
606 | ||
607 | /* First count the number of groups. If we have a SHT_GROUP | |
608 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 609 | shnum = elf_numsections (abfd); |
dbb410c3 | 610 | num_group = 0; |
08a40648 | 611 | |
44534af3 | 612 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 613 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 614 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
615 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
616 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 617 | |
dbb410c3 AM |
618 | for (i = 0; i < shnum; i++) |
619 | { | |
620 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 621 | |
44534af3 | 622 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
623 | num_group += 1; |
624 | } | |
625 | ||
626 | if (num_group == 0) | |
20dbb49d L |
627 | { |
628 | num_group = (unsigned) -1; | |
629 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 630 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
631 | } |
632 | else | |
dbb410c3 AM |
633 | { |
634 | /* We keep a list of elf section headers for group sections, | |
635 | so we can find them quickly. */ | |
1f4361a7 | 636 | size_t amt; |
d0fb9a8d | 637 | |
20dbb49d | 638 | elf_tdata (abfd)->num_group = num_group; |
1f4361a7 AM |
639 | amt = num_group * sizeof (Elf_Internal_Shdr *); |
640 | elf_tdata (abfd)->group_sect_ptr | |
641 | = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
dbb410c3 | 642 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 643 | return FALSE; |
dbb410c3 | 644 | num_group = 0; |
ce497010 | 645 | |
dbb410c3 AM |
646 | for (i = 0; i < shnum; i++) |
647 | { | |
648 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 649 | |
44534af3 | 650 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 651 | { |
973ffd63 | 652 | unsigned char *src; |
dbb410c3 AM |
653 | Elf_Internal_Group *dest; |
654 | ||
07d6d2b8 AM |
655 | /* Make sure the group section has a BFD section |
656 | attached to it. */ | |
657 | if (!bfd_section_from_shdr (abfd, i)) | |
658 | return FALSE; | |
659 | ||
dbb410c3 AM |
660 | /* Add to list of sections. */ |
661 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
662 | num_group += 1; | |
663 | ||
664 | /* Read the raw contents. */ | |
1f4361a7 AM |
665 | BFD_ASSERT (sizeof (*dest) >= 4 && sizeof (*dest) % 4 == 0); |
666 | shdr->contents = NULL; | |
667 | if (_bfd_mul_overflow (shdr->sh_size, | |
668 | sizeof (*dest) / 4, &amt) | |
1f4361a7 | 669 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 |
2bb3687b AM |
670 | || !(shdr->contents |
671 | = _bfd_alloc_and_read (abfd, amt, shdr->sh_size))) | |
493a3386 NC |
672 | { |
673 | _bfd_error_handler | |
695344c0 | 674 | /* xgettext:c-format */ |
871b3ab2 | 675 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
676 | " header: %#" PRIx64 ""), |
677 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
678 | bfd_set_error (bfd_error_bad_value); |
679 | -- num_group; | |
493a3386 NC |
680 | continue; |
681 | } | |
708d7d0d | 682 | |
dbb410c3 AM |
683 | /* Translate raw contents, a flag word followed by an |
684 | array of elf section indices all in target byte order, | |
685 | to the flag word followed by an array of elf section | |
686 | pointers. */ | |
687 | src = shdr->contents + shdr->sh_size; | |
688 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 689 | |
dbb410c3 AM |
690 | while (1) |
691 | { | |
692 | unsigned int idx; | |
693 | ||
694 | src -= 4; | |
695 | --dest; | |
696 | idx = H_GET_32 (abfd, src); | |
697 | if (src == shdr->contents) | |
698 | { | |
327301a4 | 699 | dest->shdr = NULL; |
dbb410c3 | 700 | dest->flags = idx; |
b885599b AM |
701 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
702 | shdr->bfd_section->flags | |
703 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
704 | break; |
705 | } | |
4bba0fb1 | 706 | if (idx < shnum) |
bae363f1 L |
707 | { |
708 | dest->shdr = elf_elfsections (abfd)[idx]; | |
709 | /* PR binutils/23199: All sections in a | |
710 | section group should be marked with | |
711 | SHF_GROUP. But some tools generate | |
712 | broken objects without SHF_GROUP. Fix | |
713 | them up here. */ | |
714 | dest->shdr->sh_flags |= SHF_GROUP; | |
715 | } | |
4bba0fb1 AM |
716 | if (idx >= shnum |
717 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 718 | { |
4eca0228 | 719 | _bfd_error_handler |
4bba0fb1 AM |
720 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
721 | abfd, i); | |
722 | dest->shdr = NULL; | |
dbb410c3 | 723 | } |
dbb410c3 AM |
724 | } |
725 | } | |
726 | } | |
493a3386 NC |
727 | |
728 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
729 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
730 | { | |
731 | elf_tdata (abfd)->num_group = num_group; | |
732 | ||
733 | /* If all groups are invalid then fail. */ | |
734 | if (num_group == 0) | |
735 | { | |
736 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
737 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 738 | _bfd_error_handler |
871b3ab2 | 739 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
740 | bfd_set_error (bfd_error_bad_value); |
741 | } | |
742 | } | |
dbb410c3 AM |
743 | } |
744 | } | |
745 | ||
746 | if (num_group != (unsigned) -1) | |
747 | { | |
564e11c9 JW |
748 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
749 | unsigned int j; | |
dbb410c3 | 750 | |
564e11c9 | 751 | for (j = 0; j < num_group; j++) |
dbb410c3 | 752 | { |
564e11c9 JW |
753 | /* Begin search from previous found group. */ |
754 | unsigned i = (j + search_offset) % num_group; | |
755 | ||
dbb410c3 | 756 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 757 | Elf_Internal_Group *idx; |
0c54f692 | 758 | bfd_size_type n_elt; |
ce497010 NC |
759 | |
760 | if (shdr == NULL) | |
761 | continue; | |
762 | ||
763 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
764 | if (idx == NULL || shdr->sh_size < 4) |
765 | { | |
766 | /* See PR 21957 for a reproducer. */ | |
767 | /* xgettext:c-format */ | |
871b3ab2 | 768 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
769 | abfd, shdr->bfd_section); |
770 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
771 | bfd_set_error (bfd_error_bad_value); | |
772 | return FALSE; | |
773 | } | |
ce497010 | 774 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
775 | |
776 | /* Look through this group's sections to see if current | |
777 | section is a member. */ | |
778 | while (--n_elt != 0) | |
779 | if ((++idx)->shdr == hdr) | |
780 | { | |
e0e8c97f | 781 | asection *s = NULL; |
dbb410c3 AM |
782 | |
783 | /* We are a member of this group. Go looking through | |
784 | other members to see if any others are linked via | |
785 | next_in_group. */ | |
786 | idx = (Elf_Internal_Group *) shdr->contents; | |
787 | n_elt = shdr->sh_size / 4; | |
788 | while (--n_elt != 0) | |
4bba0fb1 AM |
789 | if ((++idx)->shdr != NULL |
790 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 791 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
792 | break; |
793 | if (n_elt != 0) | |
794 | { | |
dbb410c3 AM |
795 | /* Snarf the group name from other member, and |
796 | insert current section in circular list. */ | |
945906ff AM |
797 | elf_group_name (newsect) = elf_group_name (s); |
798 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
799 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
800 | } |
801 | else | |
802 | { | |
dbb410c3 AM |
803 | const char *gname; |
804 | ||
b885599b AM |
805 | gname = group_signature (abfd, shdr); |
806 | if (gname == NULL) | |
b34976b6 | 807 | return FALSE; |
945906ff | 808 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
809 | |
810 | /* Start a circular list with one element. */ | |
945906ff | 811 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 812 | } |
b885599b | 813 | |
9dce4196 AM |
814 | /* If the group section has been created, point to the |
815 | new member. */ | |
dbb410c3 | 816 | if (shdr->bfd_section != NULL) |
945906ff | 817 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 818 | |
564e11c9 JW |
819 | elf_tdata (abfd)->group_search_offset = i; |
820 | j = num_group - 1; | |
dbb410c3 AM |
821 | break; |
822 | } | |
823 | } | |
824 | } | |
825 | ||
945906ff | 826 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 827 | { |
695344c0 | 828 | /* xgettext:c-format */ |
871b3ab2 | 829 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 830 | abfd, newsect); |
493a3386 | 831 | return FALSE; |
dbb410c3 | 832 | } |
b34976b6 | 833 | return TRUE; |
dbb410c3 AM |
834 | } |
835 | ||
3d7f7666 | 836 | bfd_boolean |
dd863624 | 837 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
838 | { |
839 | unsigned int i; | |
840 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
841 | bfd_boolean result = TRUE; | |
dd863624 L |
842 | asection *s; |
843 | ||
844 | /* Process SHF_LINK_ORDER. */ | |
845 | for (s = abfd->sections; s != NULL; s = s->next) | |
846 | { | |
847 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
848 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
849 | { | |
850 | unsigned int elfsec = this_hdr->sh_link; | |
b71702f1 NC |
851 | /* An sh_link value of 0 is now allowed. It indicates that linked |
852 | to section has already been discarded, but that the current | |
853 | section has been retained for some other reason. This linking | |
854 | section is still a candidate for later garbage collection | |
855 | however. */ | |
dd863624 L |
856 | if (elfsec == 0) |
857 | { | |
b71702f1 | 858 | elf_linked_to_section (s) = NULL; |
dd863624 L |
859 | } |
860 | else | |
861 | { | |
91d6fa6a | 862 | asection *linksec = NULL; |
25bbc984 | 863 | |
4fbb74a6 AM |
864 | if (elfsec < elf_numsections (abfd)) |
865 | { | |
866 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 867 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 868 | } |
25bbc984 L |
869 | |
870 | /* PR 1991, 2008: | |
871 | Some strip/objcopy may leave an incorrect value in | |
872 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 873 | if (linksec == NULL) |
25bbc984 | 874 | { |
4eca0228 | 875 | _bfd_error_handler |
695344c0 | 876 | /* xgettext:c-format */ |
871b3ab2 | 877 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 878 | s->owner, elfsec, s); |
25bbc984 L |
879 | result = FALSE; |
880 | } | |
881 | ||
91d6fa6a | 882 | elf_linked_to_section (s) = linksec; |
dd863624 L |
883 | } |
884 | } | |
53720c49 AM |
885 | else if (this_hdr->sh_type == SHT_GROUP |
886 | && elf_next_in_group (s) == NULL) | |
887 | { | |
4eca0228 | 888 | _bfd_error_handler |
695344c0 | 889 | /* xgettext:c-format */ |
871b3ab2 | 890 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
891 | abfd, elf_section_data (s)->this_idx); |
892 | result = FALSE; | |
893 | } | |
dd863624 | 894 | } |
3d7f7666 | 895 | |
dd863624 | 896 | /* Process section groups. */ |
3d7f7666 L |
897 | if (num_group == (unsigned) -1) |
898 | return result; | |
899 | ||
900 | for (i = 0; i < num_group; i++) | |
901 | { | |
902 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
903 | Elf_Internal_Group *idx; |
904 | unsigned int n_elt; | |
3d7f7666 | 905 | |
4b0e8a5f NC |
906 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
907 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
908 | { | |
4eca0228 | 909 | _bfd_error_handler |
695344c0 | 910 | /* xgettext:c-format */ |
871b3ab2 | 911 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
912 | abfd, i); |
913 | result = FALSE; | |
914 | continue; | |
915 | } | |
916 | ||
917 | idx = (Elf_Internal_Group *) shdr->contents; | |
918 | n_elt = shdr->sh_size / 4; | |
1b786873 | 919 | |
3d7f7666 | 920 | while (--n_elt != 0) |
24d3e51b NC |
921 | { |
922 | ++ idx; | |
923 | ||
924 | if (idx->shdr == NULL) | |
925 | continue; | |
926 | else if (idx->shdr->bfd_section) | |
927 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
928 | else if (idx->shdr->sh_type != SHT_RELA |
929 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
930 | { |
931 | /* There are some unknown sections in the group. */ | |
932 | _bfd_error_handler | |
933 | /* xgettext:c-format */ | |
871b3ab2 | 934 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
935 | abfd, |
936 | idx->shdr->sh_type, | |
937 | bfd_elf_string_from_elf_section (abfd, | |
938 | (elf_elfheader (abfd) | |
939 | ->e_shstrndx), | |
940 | idx->shdr->sh_name), | |
941 | shdr->bfd_section); | |
942 | result = FALSE; | |
943 | } | |
944 | } | |
3d7f7666 | 945 | } |
24d3e51b | 946 | |
3d7f7666 L |
947 | return result; |
948 | } | |
949 | ||
72adc230 AM |
950 | bfd_boolean |
951 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
952 | { | |
953 | return elf_next_in_group (sec) != NULL; | |
954 | } | |
955 | ||
cb7f4b29 AM |
956 | const char * |
957 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
958 | { | |
959 | if (elf_sec_group (sec) != NULL) | |
960 | return elf_group_name (sec); | |
961 | return NULL; | |
962 | } | |
963 | ||
f6fe1ccd L |
964 | static char * |
965 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
966 | { | |
967 | unsigned int len = strlen (name); | |
968 | char *new_name = bfd_alloc (abfd, len + 2); | |
969 | if (new_name == NULL) | |
970 | return NULL; | |
971 | new_name[0] = '.'; | |
972 | new_name[1] = 'z'; | |
973 | memcpy (new_name + 2, name + 1, len); | |
974 | return new_name; | |
975 | } | |
976 | ||
977 | static char * | |
978 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
979 | { | |
980 | unsigned int len = strlen (name); | |
981 | char *new_name = bfd_alloc (abfd, len); | |
982 | if (new_name == NULL) | |
983 | return NULL; | |
984 | new_name[0] = '.'; | |
985 | memcpy (new_name + 1, name + 2, len - 1); | |
986 | return new_name; | |
987 | } | |
988 | ||
cc5277b1 ML |
989 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
990 | ||
991 | struct lto_section | |
992 | { | |
993 | int16_t major_version; | |
994 | int16_t minor_version; | |
995 | unsigned char slim_object; | |
996 | ||
997 | /* Flags is a private field that is not defined publicly. */ | |
998 | uint16_t flags; | |
999 | }; | |
1000 | ||
252b5132 RH |
1001 | /* Make a BFD section from an ELF section. We store a pointer to the |
1002 | BFD section in the bfd_section field of the header. */ | |
1003 | ||
b34976b6 | 1004 | bfd_boolean |
217aa764 AM |
1005 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1006 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1007 | const char *name, |
1008 | int shindex) | |
252b5132 RH |
1009 | { |
1010 | asection *newsect; | |
1011 | flagword flags; | |
9c5bfbb7 | 1012 | const struct elf_backend_data *bed; |
502794d4 | 1013 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
1014 | |
1015 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1016 | return TRUE; |
252b5132 RH |
1017 | |
1018 | newsect = bfd_make_section_anyway (abfd, name); | |
1019 | if (newsect == NULL) | |
b34976b6 | 1020 | return FALSE; |
252b5132 | 1021 | |
1829f4b2 AM |
1022 | hdr->bfd_section = newsect; |
1023 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1024 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1025 | |
2f89ff8d L |
1026 | /* Always use the real type/flags. */ |
1027 | elf_section_type (newsect) = hdr->sh_type; | |
1028 | elf_section_flags (newsect) = hdr->sh_flags; | |
1029 | ||
252b5132 RH |
1030 | newsect->filepos = hdr->sh_offset; |
1031 | ||
252b5132 RH |
1032 | flags = SEC_NO_FLAGS; |
1033 | if (hdr->sh_type != SHT_NOBITS) | |
1034 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1035 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1036 | flags |= SEC_GROUP; |
252b5132 RH |
1037 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1038 | { | |
1039 | flags |= SEC_ALLOC; | |
1040 | if (hdr->sh_type != SHT_NOBITS) | |
1041 | flags |= SEC_LOAD; | |
1042 | } | |
1043 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1044 | flags |= SEC_READONLY; | |
1045 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1046 | flags |= SEC_CODE; | |
1047 | else if ((flags & SEC_LOAD) != 0) | |
1048 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1049 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1050 | { | |
1051 | flags |= SEC_MERGE; | |
1052 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1053 | } |
84865015 NC |
1054 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1055 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1056 | if (hdr->sh_flags & SHF_GROUP) |
1057 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1058 | return FALSE; |
13ae64f3 JJ |
1059 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1060 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1061 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1062 | flags |= SEC_EXCLUDE; | |
252b5132 | 1063 | |
df3a023b AM |
1064 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1065 | { | |
1066 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1067 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1068 | byte. */ | |
1069 | case ELFOSABI_NONE: | |
1070 | case ELFOSABI_GNU: | |
1071 | case ELFOSABI_FREEBSD: | |
1072 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) | |
1073 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1074 | break; | |
1075 | } | |
1076 | ||
3d2b39cf | 1077 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1078 | { |
3d2b39cf L |
1079 | /* The debugging sections appear to be recognized only by name, |
1080 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1081 | if (name [0] == '.') |
1082 | { | |
bb294208 AM |
1083 | if (strncmp (name, ".debug", 6) == 0 |
1084 | || strncmp (name, ".gnu.linkonce.wi.", 17) == 0 | |
1085 | || strncmp (name, ".zdebug", 7) == 0) | |
1086 | flags |= SEC_DEBUGGING | SEC_ELF_OCTETS; | |
1087 | else if (strncmp (name, GNU_BUILD_ATTRS_SECTION_NAME, 21) == 0 | |
1088 | || strncmp (name, ".note.gnu", 9) == 0) | |
502794d4 CE |
1089 | { |
1090 | flags |= SEC_ELF_OCTETS; | |
1091 | opb = 1; | |
1092 | } | |
bb294208 AM |
1093 | else if (strncmp (name, ".line", 5) == 0 |
1094 | || strncmp (name, ".stab", 5) == 0 | |
1095 | || strcmp (name, ".gdb_index") == 0) | |
3d2b39cf L |
1096 | flags |= SEC_DEBUGGING; |
1097 | } | |
1098 | } | |
252b5132 | 1099 | |
502794d4 CE |
1100 | if (!bfd_set_section_vma (newsect, hdr->sh_addr / opb) |
1101 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1102 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign))) | |
1103 | return FALSE; | |
1104 | ||
252b5132 RH |
1105 | /* As a GNU extension, if the name begins with .gnu.linkonce, we |
1106 | only link a single copy of the section. This is used to support | |
1107 | g++. g++ will emit each template expansion in its own section. | |
1108 | The symbols will be defined as weak, so that multiple definitions | |
1109 | are permitted. The GNU linker extension is to actually discard | |
1110 | all but one of the sections. */ | |
0112cd26 | 1111 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1112 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1113 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1114 | ||
8c803a2d AM |
1115 | if (!bfd_set_section_flags (newsect, flags)) |
1116 | return FALSE; | |
1117 | ||
fa152c49 JW |
1118 | bed = get_elf_backend_data (abfd); |
1119 | if (bed->elf_backend_section_flags) | |
8c803a2d | 1120 | if (!bed->elf_backend_section_flags (hdr)) |
b34976b6 | 1121 | return FALSE; |
fa152c49 | 1122 | |
718175fa JK |
1123 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1124 | separate debug info files which may have the segments offsets corrupted. | |
1125 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1126 | if (hdr->sh_type == SHT_NOTE) | |
1127 | { | |
baea7ef1 | 1128 | bfd_byte *contents; |
718175fa | 1129 | |
baea7ef1 | 1130 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1131 | return FALSE; |
1132 | ||
276da9b3 L |
1133 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1134 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1135 | free (contents); |
1136 | } | |
1137 | ||
8c803a2d | 1138 | if ((newsect->flags & SEC_ALLOC) != 0) |
252b5132 RH |
1139 | { |
1140 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1141 | unsigned int i, nload; |
1142 | ||
1143 | /* Some ELF linkers produce binaries with all the program header | |
1144 | p_paddr fields zero. If we have such a binary with more than | |
1145 | one PT_LOAD header, then leave the section lma equal to vma | |
1146 | so that we don't create sections with overlapping lma. */ | |
1147 | phdr = elf_tdata (abfd)->phdr; | |
1148 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1149 | if (phdr->p_paddr != 0) | |
1150 | break; | |
1151 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1152 | ++nload; | |
1153 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1154 | return TRUE; | |
252b5132 | 1155 | |
252b5132 RH |
1156 | phdr = elf_tdata (abfd)->phdr; |
1157 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1158 | { | |
86b2281f AM |
1159 | if (((phdr->p_type == PT_LOAD |
1160 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1161 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1162 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1163 | { |
8c803a2d | 1164 | if ((newsect->flags & SEC_LOAD) == 0) |
88967714 | 1165 | newsect->lma = (phdr->p_paddr |
502794d4 | 1166 | + hdr->sh_addr - phdr->p_vaddr) / opb; |
88967714 AM |
1167 | else |
1168 | /* We used to use the same adjustment for SEC_LOAD | |
1169 | sections, but that doesn't work if the segment | |
1170 | is packed with code from multiple VMAs. | |
1171 | Instead we calculate the section LMA based on | |
1172 | the segment LMA. It is assumed that the | |
1173 | segment will contain sections with contiguous | |
1174 | LMAs, even if the VMAs are not. */ | |
1175 | newsect->lma = (phdr->p_paddr | |
502794d4 | 1176 | + hdr->sh_offset - phdr->p_offset) / opb; |
88967714 AM |
1177 | |
1178 | /* With contiguous segments, we can't tell from file | |
1179 | offsets whether a section with zero size should | |
1180 | be placed at the end of one segment or the | |
1181 | beginning of the next. Decide based on vaddr. */ | |
1182 | if (hdr->sh_addr >= phdr->p_vaddr | |
1183 | && (hdr->sh_addr + hdr->sh_size | |
1184 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1185 | break; | |
252b5132 RH |
1186 | } |
1187 | } | |
1188 | } | |
1189 | ||
4a114e3e L |
1190 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1191 | .zdebug_*, after the section flags is set. */ | |
8c803a2d | 1192 | if ((newsect->flags & SEC_DEBUGGING) |
4a114e3e L |
1193 | && ((name[1] == 'd' && name[6] == '_') |
1194 | || (name[1] == 'z' && name[7] == '_'))) | |
1195 | { | |
1196 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1197 | int compression_header_size; |
dab394de | 1198 | bfd_size_type uncompressed_size; |
4207142d | 1199 | unsigned int uncompressed_align_power; |
151411f8 L |
1200 | bfd_boolean compressed |
1201 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1202 | &compression_header_size, |
4207142d MW |
1203 | &uncompressed_size, |
1204 | &uncompressed_align_power); | |
151411f8 | 1205 | if (compressed) |
4a114e3e L |
1206 | { |
1207 | /* Compressed section. Check if we should decompress. */ | |
1208 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1209 | action = decompress; | |
1210 | } | |
151411f8 L |
1211 | |
1212 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1213 | section. Check if we should compress. */ | |
1214 | if (action == nothing) | |
4a114e3e | 1215 | { |
151411f8 L |
1216 | if (newsect->size != 0 |
1217 | && (abfd->flags & BFD_COMPRESS) | |
1218 | && compression_header_size >= 0 | |
dab394de | 1219 | && uncompressed_size > 0 |
151411f8 L |
1220 | && (!compressed |
1221 | || ((compression_header_size > 0) | |
1222 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1223 | action = compress; |
151411f8 L |
1224 | else |
1225 | return TRUE; | |
4a114e3e L |
1226 | } |
1227 | ||
151411f8 | 1228 | if (action == compress) |
4a114e3e | 1229 | { |
4a114e3e L |
1230 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1231 | { | |
4eca0228 | 1232 | _bfd_error_handler |
695344c0 | 1233 | /* xgettext:c-format */ |
871b3ab2 | 1234 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1235 | abfd, name); |
1236 | return FALSE; | |
1237 | } | |
151411f8 L |
1238 | } |
1239 | else | |
1240 | { | |
4a114e3e L |
1241 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1242 | { | |
4eca0228 | 1243 | _bfd_error_handler |
695344c0 | 1244 | /* xgettext:c-format */ |
871b3ab2 | 1245 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1246 | abfd, name); |
1247 | return FALSE; | |
1248 | } | |
151411f8 L |
1249 | } |
1250 | ||
f6fe1ccd | 1251 | if (abfd->is_linker_input) |
151411f8 | 1252 | { |
f6fe1ccd L |
1253 | if (name[1] == 'z' |
1254 | && (action == decompress | |
1255 | || (action == compress | |
1256 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1257 | { |
f6fe1ccd L |
1258 | /* Convert section name from .zdebug_* to .debug_* so |
1259 | that linker will consider this section as a debug | |
1260 | section. */ | |
1261 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1262 | if (new_name == NULL) |
1263 | return FALSE; | |
fd361982 | 1264 | bfd_rename_section (newsect, new_name); |
151411f8 | 1265 | } |
4a114e3e | 1266 | } |
f6fe1ccd L |
1267 | else |
1268 | /* For objdump, don't rename the section. For objcopy, delay | |
1269 | section rename to elf_fake_sections. */ | |
1270 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1271 | } |
1272 | ||
cc5277b1 ML |
1273 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1274 | section. */ | |
1275 | const char *lto_section_name = ".gnu.lto_.lto."; | |
1276 | if (strncmp (name, lto_section_name, strlen (lto_section_name)) == 0) | |
1277 | { | |
1278 | struct lto_section lsection; | |
1279 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1280 | sizeof (struct lto_section))) | |
1281 | abfd->lto_slim_object = lsection.slim_object; | |
1282 | } | |
1283 | ||
b34976b6 | 1284 | return TRUE; |
252b5132 RH |
1285 | } |
1286 | ||
84865015 NC |
1287 | const char *const bfd_elf_section_type_names[] = |
1288 | { | |
252b5132 RH |
1289 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1290 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1291 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1292 | }; | |
1293 | ||
1049f94e | 1294 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1295 | output, and the reloc is against an external symbol, and nothing |
1296 | has given us any additional addend, the resulting reloc will also | |
1297 | be against the same symbol. In such a case, we don't want to | |
1298 | change anything about the way the reloc is handled, since it will | |
1299 | all be done at final link time. Rather than put special case code | |
1300 | into bfd_perform_relocation, all the reloc types use this howto | |
1301 | function. It just short circuits the reloc if producing | |
1049f94e | 1302 | relocatable output against an external symbol. */ |
252b5132 | 1303 | |
252b5132 | 1304 | bfd_reloc_status_type |
217aa764 AM |
1305 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1306 | arelent *reloc_entry, | |
1307 | asymbol *symbol, | |
1308 | void *data ATTRIBUTE_UNUSED, | |
1309 | asection *input_section, | |
1310 | bfd *output_bfd, | |
1311 | char **error_message ATTRIBUTE_UNUSED) | |
1312 | { | |
1313 | if (output_bfd != NULL | |
252b5132 RH |
1314 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1315 | && (! reloc_entry->howto->partial_inplace | |
1316 | || reloc_entry->addend == 0)) | |
1317 | { | |
1318 | reloc_entry->address += input_section->output_offset; | |
1319 | return bfd_reloc_ok; | |
1320 | } | |
1321 | ||
1322 | return bfd_reloc_continue; | |
1323 | } | |
1324 | \f | |
84865015 NC |
1325 | /* Returns TRUE if section A matches section B. |
1326 | Names, addresses and links may be different, but everything else | |
1327 | should be the same. */ | |
1328 | ||
1329 | static bfd_boolean | |
5522f910 NC |
1330 | section_match (const Elf_Internal_Shdr * a, |
1331 | const Elf_Internal_Shdr * b) | |
84865015 | 1332 | { |
ac85e67c AM |
1333 | if (a->sh_type != b->sh_type |
1334 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1335 | || a->sh_addralign != b->sh_addralign | |
1336 | || a->sh_entsize != b->sh_entsize) | |
1337 | return FALSE; | |
1338 | if (a->sh_type == SHT_SYMTAB | |
1339 | || a->sh_type == SHT_STRTAB) | |
1340 | return TRUE; | |
1341 | return a->sh_size == b->sh_size; | |
84865015 NC |
1342 | } |
1343 | ||
1344 | /* Find a section in OBFD that has the same characteristics | |
1345 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1346 | none can be found. Check's section HINT first, as this is likely | |
1347 | to be the correct section. */ | |
1348 | ||
1349 | static unsigned int | |
5cc4ca83 ST |
1350 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1351 | const unsigned int hint) | |
84865015 NC |
1352 | { |
1353 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1354 | unsigned int i; | |
1355 | ||
a55c9876 NC |
1356 | BFD_ASSERT (iheader != NULL); |
1357 | ||
1358 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1359 | if (hint < elf_numsections (obfd) |
1360 | && oheaders[hint] != NULL | |
a55c9876 | 1361 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1362 | return hint; |
1363 | ||
1364 | for (i = 1; i < elf_numsections (obfd); i++) | |
1365 | { | |
1366 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1367 | ||
a55c9876 NC |
1368 | if (oheader == NULL) |
1369 | continue; | |
84865015 NC |
1370 | if (section_match (oheader, iheader)) |
1371 | /* FIXME: Do we care if there is a potential for | |
1372 | multiple matches ? */ | |
1373 | return i; | |
1374 | } | |
1375 | ||
1376 | return SHN_UNDEF; | |
1377 | } | |
1378 | ||
5522f910 NC |
1379 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1380 | Processor specific section, based upon a matching input section. | |
1381 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1382 | |
5522f910 NC |
1383 | static bfd_boolean |
1384 | copy_special_section_fields (const bfd *ibfd, | |
1385 | bfd *obfd, | |
1386 | const Elf_Internal_Shdr *iheader, | |
1387 | Elf_Internal_Shdr *oheader, | |
1388 | const unsigned int secnum) | |
1389 | { | |
1390 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1391 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1392 | bfd_boolean changed = FALSE; | |
1393 | unsigned int sh_link; | |
1394 | ||
1395 | if (oheader->sh_type == SHT_NOBITS) | |
1396 | { | |
1397 | /* This is a feature for objcopy --only-keep-debug: | |
1398 | When a section's type is changed to NOBITS, we preserve | |
1399 | the sh_link and sh_info fields so that they can be | |
1400 | matched up with the original. | |
1401 | ||
1402 | Note: Strictly speaking these assignments are wrong. | |
1403 | The sh_link and sh_info fields should point to the | |
1404 | relevent sections in the output BFD, which may not be in | |
1405 | the same location as they were in the input BFD. But | |
1406 | the whole point of this action is to preserve the | |
1407 | original values of the sh_link and sh_info fields, so | |
1408 | that they can be matched up with the section headers in | |
1409 | the original file. So strictly speaking we may be | |
1410 | creating an invalid ELF file, but it is only for a file | |
1411 | that just contains debug info and only for sections | |
1412 | without any contents. */ | |
1413 | if (oheader->sh_link == 0) | |
1414 | oheader->sh_link = iheader->sh_link; | |
1415 | if (oheader->sh_info == 0) | |
1416 | oheader->sh_info = iheader->sh_info; | |
1417 | return TRUE; | |
1418 | } | |
1419 | ||
1420 | /* Allow the target a chance to decide how these fields should be set. */ | |
a859124d AM |
1421 | if (bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1422 | iheader, oheader)) | |
5522f910 NC |
1423 | return TRUE; |
1424 | ||
1425 | /* We have an iheader which might match oheader, and which has non-zero | |
1426 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1427 | the section in the output bfd which corresponds to the linked section | |
1428 | in the input bfd. */ | |
1429 | if (iheader->sh_link != SHN_UNDEF) | |
1430 | { | |
4f3ca05b NC |
1431 | /* See PR 20931 for a reproducer. */ |
1432 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1433 | { | |
76cfced5 | 1434 | _bfd_error_handler |
4f3ca05b | 1435 | /* xgettext:c-format */ |
9793eb77 | 1436 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1437 | ibfd, iheader->sh_link, secnum); |
1438 | return FALSE; | |
1439 | } | |
1440 | ||
5522f910 NC |
1441 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1442 | if (sh_link != SHN_UNDEF) | |
1443 | { | |
1444 | oheader->sh_link = sh_link; | |
1445 | changed = TRUE; | |
1446 | } | |
1447 | else | |
1448 | /* FIXME: Should we install iheader->sh_link | |
1449 | if we could not find a match ? */ | |
76cfced5 | 1450 | _bfd_error_handler |
695344c0 | 1451 | /* xgettext:c-format */ |
9793eb77 | 1452 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1453 | } |
1454 | ||
1455 | if (iheader->sh_info) | |
1456 | { | |
1457 | /* The sh_info field can hold arbitrary information, but if the | |
1458 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1459 | section index. */ | |
1460 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1461 | { | |
1462 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1463 | iheader->sh_info); | |
1464 | if (sh_link != SHN_UNDEF) | |
1465 | oheader->sh_flags |= SHF_INFO_LINK; | |
1466 | } | |
1467 | else | |
1468 | /* No idea what it means - just copy it. */ | |
1469 | sh_link = iheader->sh_info; | |
1470 | ||
1471 | if (sh_link != SHN_UNDEF) | |
1472 | { | |
1473 | oheader->sh_info = sh_link; | |
1474 | changed = TRUE; | |
1475 | } | |
1476 | else | |
76cfced5 | 1477 | _bfd_error_handler |
695344c0 | 1478 | /* xgettext:c-format */ |
9793eb77 | 1479 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1480 | } |
1481 | ||
1482 | return changed; | |
1483 | } | |
07d6d2b8 | 1484 | |
0ac4564e L |
1485 | /* Copy the program header and other data from one object module to |
1486 | another. */ | |
252b5132 | 1487 | |
b34976b6 | 1488 | bfd_boolean |
217aa764 | 1489 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1490 | { |
5522f910 NC |
1491 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1492 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1493 | const struct elf_backend_data *bed; | |
84865015 NC |
1494 | unsigned int i; |
1495 | ||
2d502050 | 1496 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1497 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1498 | return TRUE; |
2d502050 | 1499 | |
57b828ef L |
1500 | if (!elf_flags_init (obfd)) |
1501 | { | |
1502 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1503 | elf_flags_init (obfd) = TRUE; | |
1504 | } | |
2d502050 | 1505 | |
0ac4564e | 1506 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1507 | |
1508 | /* Also copy the EI_OSABI field. */ | |
1509 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1510 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1511 | |
5522f910 NC |
1512 | /* If set, copy the EI_ABIVERSION field. */ |
1513 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1514 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1515 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1516 | |
104d59d1 JM |
1517 | /* Copy object attributes. */ |
1518 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1519 | |
84865015 NC |
1520 | if (iheaders == NULL || oheaders == NULL) |
1521 | return TRUE; | |
63b9bbb7 | 1522 | |
5522f910 NC |
1523 | bed = get_elf_backend_data (obfd); |
1524 | ||
1525 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1526 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1527 | { |
84865015 NC |
1528 | unsigned int j; |
1529 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1530 | |
5522f910 NC |
1531 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1532 | because of a special case need for generating separate debug info | |
1533 | files. See below for more details. */ | |
84865015 NC |
1534 | if (oheader == NULL |
1535 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1536 | && oheader->sh_type < SHT_LOOS)) |
1537 | continue; | |
1538 | ||
1539 | /* Ignore empty sections, and sections whose | |
1540 | fields have already been initialised. */ | |
1541 | if (oheader->sh_size == 0 | |
84865015 NC |
1542 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1543 | continue; | |
63b9bbb7 | 1544 | |
84865015 | 1545 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1546 | First we try for a direct mapping between the input and output sections. */ |
1547 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1548 | { | |
1549 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1550 | ||
1551 | if (iheader == NULL) | |
1552 | continue; | |
1553 | ||
1554 | if (oheader->bfd_section != NULL | |
1555 | && iheader->bfd_section != NULL | |
1556 | && iheader->bfd_section->output_section != NULL | |
1557 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1558 | { | |
1559 | /* We have found a connection from the input section to the | |
1560 | output section. Attempt to copy the header fields. If | |
1561 | this fails then do not try any further sections - there | |
1562 | should only be a one-to-one mapping between input and output. */ | |
1563 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1564 | j = elf_numsections (ibfd); | |
1565 | break; | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | if (j < elf_numsections (ibfd)) | |
1570 | continue; | |
1571 | ||
1572 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1573 | Unfortunately we cannot compare names as the output string table |
1574 | is empty, so instead we check size, address and type. */ | |
1575 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1576 | { | |
5522f910 | 1577 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1578 | |
5522f910 NC |
1579 | if (iheader == NULL) |
1580 | continue; | |
1581 | ||
1582 | /* Try matching fields in the input section's header. | |
1583 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1584 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1585 | input type. */ | |
1586 | if ((oheader->sh_type == SHT_NOBITS | |
1587 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1588 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1589 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1590 | && iheader->sh_addralign == oheader->sh_addralign |
1591 | && iheader->sh_entsize == oheader->sh_entsize | |
1592 | && iheader->sh_size == oheader->sh_size | |
1593 | && iheader->sh_addr == oheader->sh_addr | |
1594 | && (iheader->sh_info != oheader->sh_info | |
1595 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1596 | { |
5522f910 NC |
1597 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1598 | break; | |
63b9bbb7 NC |
1599 | } |
1600 | } | |
5522f910 NC |
1601 | |
1602 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1603 | { | |
1604 | /* Final attempt. Call the backend copy function | |
1605 | with a NULL input section. */ | |
a859124d AM |
1606 | (void) bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1607 | NULL, oheader); | |
5522f910 | 1608 | } |
63b9bbb7 NC |
1609 | } |
1610 | ||
b34976b6 | 1611 | return TRUE; |
2d502050 L |
1612 | } |
1613 | ||
cedc298e L |
1614 | static const char * |
1615 | get_segment_type (unsigned int p_type) | |
1616 | { | |
1617 | const char *pt; | |
1618 | switch (p_type) | |
1619 | { | |
1620 | case PT_NULL: pt = "NULL"; break; | |
1621 | case PT_LOAD: pt = "LOAD"; break; | |
1622 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1623 | case PT_INTERP: pt = "INTERP"; break; | |
1624 | case PT_NOTE: pt = "NOTE"; break; | |
1625 | case PT_SHLIB: pt = "SHLIB"; break; | |
1626 | case PT_PHDR: pt = "PHDR"; break; | |
1627 | case PT_TLS: pt = "TLS"; break; | |
1628 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1629 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1630 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1631 | default: pt = NULL; break; | |
1632 | } | |
1633 | return pt; | |
1634 | } | |
1635 | ||
f0b79d91 L |
1636 | /* Print out the program headers. */ |
1637 | ||
b34976b6 | 1638 | bfd_boolean |
217aa764 | 1639 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1640 | { |
a50b1753 | 1641 | FILE *f = (FILE *) farg; |
252b5132 RH |
1642 | Elf_Internal_Phdr *p; |
1643 | asection *s; | |
1644 | bfd_byte *dynbuf = NULL; | |
1645 | ||
1646 | p = elf_tdata (abfd)->phdr; | |
1647 | if (p != NULL) | |
1648 | { | |
1649 | unsigned int i, c; | |
1650 | ||
1651 | fprintf (f, _("\nProgram Header:\n")); | |
1652 | c = elf_elfheader (abfd)->e_phnum; | |
1653 | for (i = 0; i < c; i++, p++) | |
1654 | { | |
cedc298e | 1655 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1656 | char buf[20]; |
1657 | ||
cedc298e | 1658 | if (pt == NULL) |
252b5132 | 1659 | { |
cedc298e L |
1660 | sprintf (buf, "0x%lx", p->p_type); |
1661 | pt = buf; | |
252b5132 | 1662 | } |
dc810e39 | 1663 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1664 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1665 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1666 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1667 | fprintf (f, " paddr 0x"); |
60b89a18 | 1668 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1669 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1670 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1671 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1672 | fprintf (f, " memsz 0x"); |
60b89a18 | 1673 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1674 | fprintf (f, " flags %c%c%c", |
1675 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1676 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1677 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1678 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1679 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1680 | fprintf (f, "\n"); |
1681 | } | |
1682 | } | |
1683 | ||
1684 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1685 | if (s != NULL) | |
1686 | { | |
cb33740c | 1687 | unsigned int elfsec; |
dc810e39 | 1688 | unsigned long shlink; |
252b5132 RH |
1689 | bfd_byte *extdyn, *extdynend; |
1690 | size_t extdynsize; | |
217aa764 | 1691 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1692 | |
1693 | fprintf (f, _("\nDynamic Section:\n")); | |
1694 | ||
eea6121a | 1695 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1696 | goto error_return; |
1697 | ||
1698 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1699 | if (elfsec == SHN_BAD) |
252b5132 | 1700 | goto error_return; |
dc810e39 | 1701 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1702 | |
1703 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1704 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1705 | ||
1706 | extdyn = dynbuf; | |
06614111 NC |
1707 | /* PR 17512: file: 6f427532. */ |
1708 | if (s->size < extdynsize) | |
1709 | goto error_return; | |
eea6121a | 1710 | extdynend = extdyn + s->size; |
1036838a | 1711 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1712 | Fix range check. */ |
1036838a | 1713 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1714 | { |
1715 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1716 | const char *name = ""; |
252b5132 | 1717 | char ab[20]; |
b34976b6 | 1718 | bfd_boolean stringp; |
ad9563d6 | 1719 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1720 | |
217aa764 | 1721 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1722 | |
1723 | if (dyn.d_tag == DT_NULL) | |
1724 | break; | |
1725 | ||
b34976b6 | 1726 | stringp = FALSE; |
252b5132 RH |
1727 | switch (dyn.d_tag) |
1728 | { | |
1729 | default: | |
ad9563d6 CM |
1730 | if (bed->elf_backend_get_target_dtag) |
1731 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1732 | ||
1733 | if (!strcmp (name, "")) | |
1734 | { | |
cd9af601 | 1735 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1736 | name = ab; |
1737 | } | |
252b5132 RH |
1738 | break; |
1739 | ||
b34976b6 | 1740 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1741 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1742 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1743 | case DT_HASH: name = "HASH"; break; | |
1744 | case DT_STRTAB: name = "STRTAB"; break; | |
1745 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1746 | case DT_RELA: name = "RELA"; break; | |
1747 | case DT_RELASZ: name = "RELASZ"; break; | |
1748 | case DT_RELAENT: name = "RELAENT"; break; | |
1749 | case DT_STRSZ: name = "STRSZ"; break; | |
1750 | case DT_SYMENT: name = "SYMENT"; break; | |
1751 | case DT_INIT: name = "INIT"; break; | |
1752 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1753 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1754 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1755 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1756 | case DT_REL: name = "REL"; break; | |
1757 | case DT_RELSZ: name = "RELSZ"; break; | |
1758 | case DT_RELENT: name = "RELENT"; break; | |
1759 | case DT_PLTREL: name = "PLTREL"; break; | |
1760 | case DT_DEBUG: name = "DEBUG"; break; | |
1761 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1762 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1763 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1764 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1765 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1766 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1767 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1768 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1769 | case DT_FLAGS: name = "FLAGS"; break; |
1770 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1771 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1772 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1773 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1774 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1775 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1776 | case DT_FEATURE: name = "FEATURE"; break; | |
1777 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1778 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1779 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1780 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1781 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1782 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1783 | case DT_PLTPAD: name = "PLTPAD"; break; |
1784 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1785 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1786 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1787 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1788 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1789 | case DT_VERSYM: name = "VERSYM"; break; |
1790 | case DT_VERDEF: name = "VERDEF"; break; | |
1791 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1792 | case DT_VERNEED: name = "VERNEED"; break; | |
1793 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1794 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1795 | case DT_USED: name = "USED"; break; |
b34976b6 | 1796 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1797 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1798 | } |
1799 | ||
ad9563d6 | 1800 | fprintf (f, " %-20s ", name); |
252b5132 | 1801 | if (! stringp) |
a1f3c56e AN |
1802 | { |
1803 | fprintf (f, "0x"); | |
1804 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1805 | } | |
252b5132 RH |
1806 | else |
1807 | { | |
1808 | const char *string; | |
dc810e39 | 1809 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1810 | |
dc810e39 | 1811 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1812 | if (string == NULL) |
1813 | goto error_return; | |
1814 | fprintf (f, "%s", string); | |
1815 | } | |
1816 | fprintf (f, "\n"); | |
1817 | } | |
1818 | ||
1819 | free (dynbuf); | |
1820 | dynbuf = NULL; | |
1821 | } | |
1822 | ||
1823 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1824 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1825 | { | |
fc0e6df6 | 1826 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1827 | return FALSE; |
252b5132 RH |
1828 | } |
1829 | ||
1830 | if (elf_dynverdef (abfd) != 0) | |
1831 | { | |
1832 | Elf_Internal_Verdef *t; | |
1833 | ||
1834 | fprintf (f, _("\nVersion definitions:\n")); | |
1835 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1836 | { | |
1837 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1838 | t->vd_flags, t->vd_hash, |
1839 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1840 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1841 | { |
1842 | Elf_Internal_Verdaux *a; | |
1843 | ||
1844 | fprintf (f, "\t"); | |
1845 | for (a = t->vd_auxptr->vda_nextptr; | |
1846 | a != NULL; | |
1847 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1848 | fprintf (f, "%s ", |
1849 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1850 | fprintf (f, "\n"); |
1851 | } | |
1852 | } | |
1853 | } | |
1854 | ||
1855 | if (elf_dynverref (abfd) != 0) | |
1856 | { | |
1857 | Elf_Internal_Verneed *t; | |
1858 | ||
1859 | fprintf (f, _("\nVersion References:\n")); | |
1860 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1861 | { | |
1862 | Elf_Internal_Vernaux *a; | |
1863 | ||
d0fb9a8d JJ |
1864 | fprintf (f, _(" required from %s:\n"), |
1865 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1866 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1867 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1868 | a->vna_flags, a->vna_other, |
1869 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1870 | } |
1871 | } | |
1872 | ||
b34976b6 | 1873 | return TRUE; |
252b5132 RH |
1874 | |
1875 | error_return: | |
c9594989 | 1876 | free (dynbuf); |
b34976b6 | 1877 | return FALSE; |
252b5132 RH |
1878 | } |
1879 | ||
7e6e972f L |
1880 | /* Get version name. If BASE_P is TRUE, return "Base" for VER_FLG_BASE |
1881 | and return symbol version for symbol version itself. */ | |
bb4d2ac2 L |
1882 | |
1883 | const char * | |
1081065c L |
1884 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1885 | bfd_boolean base_p, | |
1886 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1887 | { |
1888 | const char *version_string = NULL; | |
1889 | if (elf_dynversym (abfd) != 0 | |
1890 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1891 | { | |
1892 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1893 | ||
1894 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1895 | vernum &= VERSYM_VERSION; | |
1896 | ||
1897 | if (vernum == 0) | |
1898 | version_string = ""; | |
1f6f5dba L |
1899 | else if (vernum == 1 |
1900 | && (vernum > elf_tdata (abfd)->cverdefs | |
1901 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1902 | == VER_FLG_BASE))) | |
7e6e972f | 1903 | version_string = base_p ? "Base" : ""; |
bb4d2ac2 | 1904 | else if (vernum <= elf_tdata (abfd)->cverdefs) |
7e6e972f L |
1905 | { |
1906 | const char *nodename | |
1907 | = elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
8d55d10a AM |
1908 | version_string = ""; |
1909 | if (base_p | |
1910 | || nodename == NULL | |
1911 | || symbol->name == NULL | |
1912 | || strcmp (symbol->name, nodename) != 0) | |
1913 | version_string = nodename; | |
7e6e972f | 1914 | } |
bb4d2ac2 L |
1915 | else |
1916 | { | |
1917 | Elf_Internal_Verneed *t; | |
1918 | ||
7a815dd5 | 1919 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1920 | for (t = elf_tdata (abfd)->verref; |
1921 | t != NULL; | |
1922 | t = t->vn_nextref) | |
1923 | { | |
1924 | Elf_Internal_Vernaux *a; | |
1925 | ||
1926 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1927 | { | |
1928 | if (a->vna_other == vernum) | |
1929 | { | |
1930 | version_string = a->vna_nodename; | |
1931 | break; | |
1932 | } | |
1933 | } | |
1934 | } | |
1935 | } | |
1936 | } | |
1937 | return version_string; | |
1938 | } | |
1939 | ||
252b5132 RH |
1940 | /* Display ELF-specific fields of a symbol. */ |
1941 | ||
1942 | void | |
217aa764 AM |
1943 | bfd_elf_print_symbol (bfd *abfd, |
1944 | void *filep, | |
1945 | asymbol *symbol, | |
1946 | bfd_print_symbol_type how) | |
252b5132 | 1947 | { |
a50b1753 | 1948 | FILE *file = (FILE *) filep; |
252b5132 RH |
1949 | switch (how) |
1950 | { | |
1951 | case bfd_print_symbol_name: | |
1952 | fprintf (file, "%s", symbol->name); | |
1953 | break; | |
1954 | case bfd_print_symbol_more: | |
1955 | fprintf (file, "elf "); | |
60b89a18 | 1956 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1957 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1958 | break; |
1959 | case bfd_print_symbol_all: | |
1960 | { | |
4e8a9624 AM |
1961 | const char *section_name; |
1962 | const char *name = NULL; | |
9c5bfbb7 | 1963 | const struct elf_backend_data *bed; |
7a13edea | 1964 | unsigned char st_other; |
dbb410c3 | 1965 | bfd_vma val; |
bb4d2ac2 L |
1966 | const char *version_string; |
1967 | bfd_boolean hidden; | |
c044fabd | 1968 | |
252b5132 | 1969 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1970 | |
1971 | bed = get_elf_backend_data (abfd); | |
1972 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1973 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1974 | |
1975 | if (name == NULL) | |
1976 | { | |
7ee38065 | 1977 | name = symbol->name; |
217aa764 | 1978 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1979 | } |
1980 | ||
252b5132 RH |
1981 | fprintf (file, " %s\t", section_name); |
1982 | /* Print the "other" value for a symbol. For common symbols, | |
1983 | we've already printed the size; now print the alignment. | |
1984 | For other symbols, we have no specified alignment, and | |
1985 | we've printed the address; now print the size. */ | |
dcf6c779 | 1986 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1987 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1988 | else | |
1989 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1990 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1991 | |
1992 | /* If we have version information, print it. */ | |
60bb06bc L |
1993 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
1994 | symbol, | |
1081065c | 1995 | TRUE, |
60bb06bc | 1996 | &hidden); |
bb4d2ac2 | 1997 | if (version_string) |
252b5132 | 1998 | { |
bb4d2ac2 | 1999 | if (!hidden) |
252b5132 RH |
2000 | fprintf (file, " %-11s", version_string); |
2001 | else | |
2002 | { | |
2003 | int i; | |
2004 | ||
2005 | fprintf (file, " (%s)", version_string); | |
2006 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2007 | putc (' ', file); | |
2008 | } | |
2009 | } | |
2010 | ||
2011 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2012 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2013 | |
7a13edea NC |
2014 | switch (st_other) |
2015 | { | |
2016 | case 0: break; | |
2017 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2018 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2019 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2020 | default: | |
2021 | /* Some other non-defined flags are also present, so print | |
2022 | everything hex. */ | |
2023 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2024 | } | |
252b5132 | 2025 | |
587ff49e | 2026 | fprintf (file, " %s", name); |
252b5132 RH |
2027 | } |
2028 | break; | |
2029 | } | |
2030 | } | |
252b5132 RH |
2031 | \f |
2032 | /* ELF .o/exec file reading */ | |
2033 | ||
c044fabd | 2034 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2035 | |
b34976b6 | 2036 | bfd_boolean |
217aa764 | 2037 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2038 | { |
4fbb74a6 AM |
2039 | Elf_Internal_Shdr *hdr; |
2040 | Elf_Internal_Ehdr *ehdr; | |
2041 | const struct elf_backend_data *bed; | |
90937f86 | 2042 | const char *name; |
bf67003b NC |
2043 | bfd_boolean ret = TRUE; |
2044 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2045 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2046 | static unsigned int nesting = 0; |
252b5132 | 2047 | |
4fbb74a6 AM |
2048 | if (shindex >= elf_numsections (abfd)) |
2049 | return FALSE; | |
2050 | ||
bf67003b NC |
2051 | if (++ nesting > 3) |
2052 | { | |
2053 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2054 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2055 | loop. Detect this here, by refusing to load a section that we are |
2056 | already in the process of loading. We only trigger this test if | |
2057 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2058 | can expect to recurse at least once. |
2059 | ||
2060 | FIXME: It would be better if this array was attached to the bfd, | |
2061 | rather than being held in a static pointer. */ | |
2062 | ||
2063 | if (sections_being_created_abfd != abfd) | |
2064 | sections_being_created = NULL; | |
bf67003b NC |
2065 | if (sections_being_created == NULL) |
2066 | { | |
446f7ed5 | 2067 | size_t amt = elf_numsections (abfd) * sizeof (bfd_boolean); |
ed02cdb5 NC |
2068 | |
2069 | /* PR 26005: Do not use bfd_zalloc here as the memory might | |
2070 | be released before the bfd has been fully scanned. */ | |
2071 | sections_being_created = (bfd_boolean *) bfd_malloc (amt); | |
96d3b80f AM |
2072 | if (sections_being_created == NULL) |
2073 | return FALSE; | |
6fd1d259 | 2074 | memset (sections_being_created, FALSE, amt); |
5a4b0ccc | 2075 | sections_being_created_abfd = abfd; |
bf67003b NC |
2076 | } |
2077 | if (sections_being_created [shindex]) | |
2078 | { | |
4eca0228 | 2079 | _bfd_error_handler |
871b3ab2 | 2080 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2081 | return FALSE; |
2082 | } | |
2083 | sections_being_created [shindex] = TRUE; | |
2084 | } | |
2085 | ||
4fbb74a6 AM |
2086 | hdr = elf_elfsections (abfd)[shindex]; |
2087 | ehdr = elf_elfheader (abfd); | |
2088 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2089 | hdr->sh_name); |
933d961a | 2090 | if (name == NULL) |
bf67003b | 2091 | goto fail; |
252b5132 | 2092 | |
4fbb74a6 | 2093 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2094 | switch (hdr->sh_type) |
2095 | { | |
2096 | case SHT_NULL: | |
2097 | /* Inactive section. Throw it away. */ | |
bf67003b | 2098 | goto success; |
252b5132 | 2099 | |
bf67003b NC |
2100 | case SHT_PROGBITS: /* Normal section with contents. */ |
2101 | case SHT_NOBITS: /* .bss section. */ | |
2102 | case SHT_HASH: /* .hash section. */ | |
2103 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2104 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2105 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2106 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2107 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2108 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2109 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2110 | goto success; | |
252b5132 | 2111 | |
797fc050 | 2112 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2113 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2114 | goto fail; |
2115 | ||
cfcac11d NC |
2116 | if (hdr->sh_link > elf_numsections (abfd)) |
2117 | { | |
caa83f8b | 2118 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2119 | field set to SHN_BEFORE or SHN_AFTER. */ |
2120 | switch (bfd_get_arch (abfd)) | |
2121 | { | |
caa83f8b | 2122 | case bfd_arch_i386: |
cfcac11d NC |
2123 | case bfd_arch_sparc: |
2124 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2125 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2126 | break; | |
2127 | /* Otherwise fall through. */ | |
2128 | default: | |
bf67003b | 2129 | goto fail; |
cfcac11d NC |
2130 | } |
2131 | } | |
2132 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2133 | goto fail; |
cfcac11d | 2134 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2135 | { |
2136 | Elf_Internal_Shdr *dynsymhdr; | |
2137 | ||
2138 | /* The shared libraries distributed with hpux11 have a bogus | |
2139 | sh_link field for the ".dynamic" section. Find the | |
2140 | string table for the ".dynsym" section instead. */ | |
2141 | if (elf_dynsymtab (abfd) != 0) | |
2142 | { | |
2143 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2144 | hdr->sh_link = dynsymhdr->sh_link; | |
2145 | } | |
2146 | else | |
2147 | { | |
2148 | unsigned int i, num_sec; | |
2149 | ||
2150 | num_sec = elf_numsections (abfd); | |
2151 | for (i = 1; i < num_sec; i++) | |
2152 | { | |
2153 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2154 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2155 | { | |
2156 | hdr->sh_link = dynsymhdr->sh_link; | |
2157 | break; | |
2158 | } | |
2159 | } | |
2160 | } | |
2161 | } | |
bf67003b | 2162 | goto success; |
797fc050 | 2163 | |
bf67003b | 2164 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2165 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2166 | goto success; |
252b5132 | 2167 | |
a50b2160 | 2168 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2169 | goto fail; |
2170 | ||
3337c1e5 | 2171 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2172 | { |
2173 | if (hdr->sh_size != 0) | |
bf67003b | 2174 | goto fail; |
eee3b786 AM |
2175 | /* Some assemblers erroneously set sh_info to one with a |
2176 | zero sh_size. ld sees this as a global symbol count | |
2177 | of (unsigned) -1. Fix it here. */ | |
2178 | hdr->sh_info = 0; | |
bf67003b | 2179 | goto success; |
eee3b786 | 2180 | } |
bf67003b | 2181 | |
16ad13ec NC |
2182 | /* PR 18854: A binary might contain more than one symbol table. |
2183 | Unusual, but possible. Warn, but continue. */ | |
2184 | if (elf_onesymtab (abfd) != 0) | |
2185 | { | |
4eca0228 | 2186 | _bfd_error_handler |
695344c0 | 2187 | /* xgettext:c-format */ |
871b3ab2 | 2188 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2189 | " - ignoring the table in section %u"), |
16ad13ec NC |
2190 | abfd, shindex); |
2191 | goto success; | |
2192 | } | |
252b5132 | 2193 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2194 | elf_symtab_hdr (abfd) = *hdr; |
2195 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2196 | abfd->flags |= HAS_SYMS; |
2197 | ||
2198 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2199 | SHF_ALLOC is set, and this is a shared object, then we also |
2200 | treat this section as a BFD section. We can not base the | |
2201 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2202 | set in a relocatable object file, which would confuse the | |
2203 | linker. */ | |
252b5132 RH |
2204 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2205 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2206 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2207 | shindex)) | |
bf67003b | 2208 | goto fail; |
252b5132 | 2209 | |
1b3a8575 AM |
2210 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2211 | can't read symbols without that section loaded as well. It | |
2212 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2213 | { |
2214 | elf_section_list * entry; | |
2215 | unsigned int i, num_sec; | |
1b3a8575 | 2216 | |
6a40cf0c NC |
2217 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2218 | if (entry->hdr.sh_link == shindex) | |
2219 | goto success; | |
2220 | ||
2221 | num_sec = elf_numsections (abfd); | |
2222 | for (i = shindex + 1; i < num_sec; i++) | |
2223 | { | |
2224 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2225 | ||
2226 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2227 | && hdr2->sh_link == shindex) | |
2228 | break; | |
2229 | } | |
2230 | ||
2231 | if (i == num_sec) | |
2232 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2233 | { |
2234 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2235 | |
1b3a8575 AM |
2236 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2237 | && hdr2->sh_link == shindex) | |
2238 | break; | |
2239 | } | |
6a40cf0c NC |
2240 | |
2241 | if (i != shindex) | |
2242 | ret = bfd_section_from_shdr (abfd, i); | |
2243 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2244 | goto success; | |
2245 | } | |
252b5132 | 2246 | |
bf67003b | 2247 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2248 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2249 | goto success; |
252b5132 | 2250 | |
a50b2160 | 2251 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2252 | goto fail; |
2253 | ||
eee3b786 AM |
2254 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2255 | { | |
2256 | if (hdr->sh_size != 0) | |
bf67003b NC |
2257 | goto fail; |
2258 | ||
eee3b786 AM |
2259 | /* Some linkers erroneously set sh_info to one with a |
2260 | zero sh_size. ld sees this as a global symbol count | |
2261 | of (unsigned) -1. Fix it here. */ | |
2262 | hdr->sh_info = 0; | |
bf67003b | 2263 | goto success; |
eee3b786 | 2264 | } |
bf67003b | 2265 | |
16ad13ec NC |
2266 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2267 | Unusual, but possible. Warn, but continue. */ | |
2268 | if (elf_dynsymtab (abfd) != 0) | |
2269 | { | |
4eca0228 | 2270 | _bfd_error_handler |
695344c0 | 2271 | /* xgettext:c-format */ |
871b3ab2 | 2272 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2273 | " - ignoring the table in section %u"), |
16ad13ec NC |
2274 | abfd, shindex); |
2275 | goto success; | |
2276 | } | |
252b5132 RH |
2277 | elf_dynsymtab (abfd) = shindex; |
2278 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2279 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2280 | abfd->flags |= HAS_SYMS; | |
2281 | ||
2282 | /* Besides being a symbol table, we also treat this as a regular | |
2283 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2284 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2285 | goto success; | |
252b5132 | 2286 | |
bf67003b | 2287 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2288 | { |
2289 | elf_section_list * entry; | |
9ad5cbcf | 2290 | |
6a40cf0c NC |
2291 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2292 | if (entry->ndx == shindex) | |
2293 | goto success; | |
07d6d2b8 | 2294 | |
7a6e0d89 | 2295 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2296 | if (entry == NULL) |
2297 | goto fail; | |
2298 | entry->ndx = shindex; | |
2299 | entry->hdr = * hdr; | |
2300 | entry->next = elf_symtab_shndx_list (abfd); | |
2301 | elf_symtab_shndx_list (abfd) = entry; | |
2302 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2303 | goto success; | |
2304 | } | |
9ad5cbcf | 2305 | |
bf67003b | 2306 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2307 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2308 | goto success; |
2309 | ||
252b5132 RH |
2310 | if (ehdr->e_shstrndx == shindex) |
2311 | { | |
2312 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2313 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2314 | goto success; |
252b5132 | 2315 | } |
bf67003b | 2316 | |
1b3a8575 AM |
2317 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2318 | { | |
2319 | symtab_strtab: | |
2320 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2321 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2322 | goto success; |
1b3a8575 | 2323 | } |
bf67003b | 2324 | |
1b3a8575 AM |
2325 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2326 | { | |
2327 | dynsymtab_strtab: | |
2328 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2329 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2330 | elf_elfsections (abfd)[shindex] = hdr; | |
2331 | /* We also treat this as a regular section, so that objcopy | |
2332 | can handle it. */ | |
bf67003b NC |
2333 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2334 | shindex); | |
2335 | goto success; | |
1b3a8575 | 2336 | } |
252b5132 | 2337 | |
1b3a8575 AM |
2338 | /* If the string table isn't one of the above, then treat it as a |
2339 | regular section. We need to scan all the headers to be sure, | |
2340 | just in case this strtab section appeared before the above. */ | |
2341 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2342 | { | |
2343 | unsigned int i, num_sec; | |
252b5132 | 2344 | |
1b3a8575 AM |
2345 | num_sec = elf_numsections (abfd); |
2346 | for (i = 1; i < num_sec; i++) | |
2347 | { | |
2348 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2349 | if (hdr2->sh_link == shindex) | |
2350 | { | |
933d961a JJ |
2351 | /* Prevent endless recursion on broken objects. */ |
2352 | if (i == shindex) | |
bf67003b | 2353 | goto fail; |
1b3a8575 | 2354 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2355 | goto fail; |
1b3a8575 AM |
2356 | if (elf_onesymtab (abfd) == i) |
2357 | goto symtab_strtab; | |
2358 | if (elf_dynsymtab (abfd) == i) | |
2359 | goto dynsymtab_strtab; | |
2360 | } | |
2361 | } | |
2362 | } | |
bf67003b NC |
2363 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2364 | goto success; | |
252b5132 RH |
2365 | |
2366 | case SHT_REL: | |
2367 | case SHT_RELA: | |
2368 | /* *These* do a lot of work -- but build no sections! */ | |
2369 | { | |
2370 | asection *target_sect; | |
d4730f92 | 2371 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2372 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2373 | struct bfd_elf_section_data *esdt; |
252b5132 | 2374 | |
aa2ca951 JJ |
2375 | if (hdr->sh_entsize |
2376 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2377 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2378 | goto fail; |
a50b2160 | 2379 | |
03ae5f59 | 2380 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2381 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2382 | { |
4eca0228 | 2383 | _bfd_error_handler |
695344c0 | 2384 | /* xgettext:c-format */ |
871b3ab2 | 2385 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2386 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2387 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2388 | shindex); | |
2389 | goto success; | |
03ae5f59 ILT |
2390 | } |
2391 | ||
252b5132 RH |
2392 | /* For some incomprehensible reason Oracle distributes |
2393 | libraries for Solaris in which some of the objects have | |
2394 | bogus sh_link fields. It would be nice if we could just | |
2395 | reject them, but, unfortunately, some people need to use | |
2396 | them. We scan through the section headers; if we find only | |
2397 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2398 | to it. I hope this doesn't break anything. |
2399 | ||
2400 | Don't do it on executable nor shared library. */ | |
2401 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2402 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2403 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2404 | { | |
9ad5cbcf | 2405 | unsigned int scan; |
252b5132 RH |
2406 | int found; |
2407 | ||
2408 | found = 0; | |
9ad5cbcf | 2409 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2410 | { |
2411 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2412 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2413 | { | |
2414 | if (found != 0) | |
2415 | { | |
2416 | found = 0; | |
2417 | break; | |
2418 | } | |
2419 | found = scan; | |
2420 | } | |
2421 | } | |
2422 | if (found != 0) | |
2423 | hdr->sh_link = found; | |
2424 | } | |
2425 | ||
2426 | /* Get the symbol table. */ | |
1b3a8575 AM |
2427 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2428 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2429 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2430 | goto fail; |
252b5132 | 2431 | |
a4bcd733 AM |
2432 | /* If this is an alloc section in an executable or shared |
2433 | library, or the reloc section does not use the main symbol | |
2434 | table we don't treat it as a reloc section. BFD can't | |
2435 | adequately represent such a section, so at least for now, | |
2436 | we don't try. We just present it as a normal section. We | |
2437 | also can't use it as a reloc section if it points to the | |
2438 | null section, an invalid section, another reloc section, or | |
2439 | its sh_link points to the null section. */ | |
2440 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2441 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2442 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2443 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2444 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2445 | || hdr->sh_info >= num_sec |
2446 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2447 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2448 | { |
2449 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2450 | shindex); | |
2451 | goto success; | |
2452 | } | |
252b5132 RH |
2453 | |
2454 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2455 | goto fail; |
2456 | ||
252b5132 RH |
2457 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2458 | if (target_sect == NULL) | |
bf67003b | 2459 | goto fail; |
252b5132 | 2460 | |
d4730f92 BS |
2461 | esdt = elf_section_data (target_sect); |
2462 | if (hdr->sh_type == SHT_RELA) | |
2463 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2464 | else |
d4730f92 BS |
2465 | p_hdr = &esdt->rel.hdr; |
2466 | ||
a7ba3896 NC |
2467 | /* PR 17512: file: 0b4f81b7. |
2468 | Also see PR 24456, for a file which deliberately has two reloc | |
2469 | sections. */ | |
06614111 | 2470 | if (*p_hdr != NULL) |
a7ba3896 | 2471 | { |
a859124d | 2472 | if (!bed->init_secondary_reloc_section (abfd, hdr, name, shindex)) |
a8e14f4c NC |
2473 | { |
2474 | _bfd_error_handler | |
2475 | /* xgettext:c-format */ | |
a859124d AM |
2476 | (_("%pB: warning: secondary relocation section '%s' " |
2477 | "for section %pA found - ignoring"), | |
a8e14f4c NC |
2478 | abfd, name, target_sect); |
2479 | } | |
a7ba3896 NC |
2480 | goto success; |
2481 | } | |
a8e14f4c | 2482 | |
ef53be89 | 2483 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2484 | if (hdr2 == NULL) |
bf67003b | 2485 | goto fail; |
252b5132 | 2486 | *hdr2 = *hdr; |
d4730f92 | 2487 | *p_hdr = hdr2; |
252b5132 | 2488 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2489 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2490 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2491 | target_sect->flags |= SEC_RELOC; |
2492 | target_sect->relocation = NULL; | |
2493 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2494 | /* In the section to which the relocations apply, mark whether |
2495 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2496 | if (hdr->sh_size != 0) |
d4730f92 BS |
2497 | { |
2498 | if (hdr->sh_type == SHT_RELA) | |
2499 | target_sect->use_rela_p = 1; | |
2500 | } | |
252b5132 | 2501 | abfd->flags |= HAS_RELOC; |
bf67003b | 2502 | goto success; |
252b5132 | 2503 | } |
252b5132 RH |
2504 | |
2505 | case SHT_GNU_verdef: | |
2506 | elf_dynverdef (abfd) = shindex; | |
2507 | elf_tdata (abfd)->dynverdef_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_GNU_versym: | |
a50b2160 | 2512 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2513 | goto fail; |
2514 | ||
252b5132 RH |
2515 | elf_dynversym (abfd) = shindex; |
2516 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2517 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2518 | goto success; | |
252b5132 RH |
2519 | |
2520 | case SHT_GNU_verneed: | |
2521 | elf_dynverref (abfd) = shindex; | |
2522 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2523 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2524 | goto success; | |
252b5132 RH |
2525 | |
2526 | case SHT_SHLIB: | |
bf67003b | 2527 | goto success; |
252b5132 | 2528 | |
dbb410c3 | 2529 | case SHT_GROUP: |
44534af3 | 2530 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2531 | goto fail; |
2532 | ||
6dc132d9 | 2533 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2534 | goto fail; |
2535 | ||
bf67003b | 2536 | goto success; |
dbb410c3 | 2537 | |
252b5132 | 2538 | default: |
104d59d1 JM |
2539 | /* Possibly an attributes section. */ |
2540 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2541 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2542 | { | |
2543 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2544 | goto fail; |
104d59d1 | 2545 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2546 | goto success; |
104d59d1 JM |
2547 | } |
2548 | ||
252b5132 | 2549 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2550 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2551 | goto success; |
3eb70a79 L |
2552 | |
2553 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2554 | { | |
2555 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2556 | /* FIXME: How to properly handle allocated section reserved | |
2557 | for applications? */ | |
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 |
bf67003b NC |
2563 | { |
2564 | /* Allow sections reserved for applications. */ | |
2565 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2566 | shindex); | |
2567 | goto success; | |
2568 | } | |
3eb70a79 L |
2569 | } |
2570 | else if (hdr->sh_type >= SHT_LOPROC | |
2571 | && hdr->sh_type <= SHT_HIPROC) | |
2572 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2573 | _bfd_error_handler |
695344c0 | 2574 | /* xgettext:c-format */ |
871b3ab2 | 2575 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2576 | abfd, hdr->sh_type, name); |
3eb70a79 | 2577 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2578 | { |
2579 | /* Unrecognised OS-specific sections. */ | |
2580 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2581 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2582 | required to correctly process the section and the file should |
ff15b240 | 2583 | be rejected with an error message. */ |
4eca0228 | 2584 | _bfd_error_handler |
695344c0 | 2585 | /* xgettext:c-format */ |
871b3ab2 | 2586 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2587 | abfd, hdr->sh_type, name); |
ff15b240 | 2588 | else |
bf67003b NC |
2589 | { |
2590 | /* Otherwise it should be processed. */ | |
2591 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2592 | goto success; | |
2593 | } | |
ff15b240 | 2594 | } |
3eb70a79 L |
2595 | else |
2596 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2597 | _bfd_error_handler |
695344c0 | 2598 | /* xgettext:c-format */ |
871b3ab2 | 2599 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2600 | abfd, hdr->sh_type, name); |
3eb70a79 | 2601 | |
bf67003b | 2602 | goto fail; |
252b5132 RH |
2603 | } |
2604 | ||
bf67003b NC |
2605 | fail: |
2606 | ret = FALSE; | |
2607 | success: | |
e5b470e2 | 2608 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2609 | sections_being_created [shindex] = FALSE; |
2610 | if (-- nesting == 0) | |
5a4b0ccc | 2611 | { |
ed02cdb5 | 2612 | free (sections_being_created); |
5a4b0ccc | 2613 | sections_being_created = NULL; |
ed02cdb5 | 2614 | sections_being_created_abfd = NULL; |
5a4b0ccc | 2615 | } |
bf67003b | 2616 | return ret; |
252b5132 RH |
2617 | } |
2618 | ||
87d72d41 | 2619 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2620 | |
87d72d41 AM |
2621 | Elf_Internal_Sym * |
2622 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2623 | bfd *abfd, | |
2624 | unsigned long r_symndx) | |
ec338859 | 2625 | { |
ec338859 AM |
2626 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2627 | ||
a5d1b3b5 AM |
2628 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2629 | { | |
2630 | Elf_Internal_Shdr *symtab_hdr; | |
2631 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2632 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2633 | |
a5d1b3b5 AM |
2634 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2635 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2636 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2637 | return NULL; |
9ad5cbcf | 2638 | |
a5d1b3b5 AM |
2639 | if (cache->abfd != abfd) |
2640 | { | |
2641 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2642 | cache->abfd = abfd; | |
2643 | } | |
2644 | cache->indx[ent] = r_symndx; | |
ec338859 | 2645 | } |
a5d1b3b5 | 2646 | |
87d72d41 | 2647 | return &cache->sym[ent]; |
ec338859 AM |
2648 | } |
2649 | ||
252b5132 RH |
2650 | /* Given an ELF section number, retrieve the corresponding BFD |
2651 | section. */ | |
2652 | ||
2653 | asection * | |
91d6fa6a | 2654 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2655 | { |
91d6fa6a | 2656 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2657 | return NULL; |
91d6fa6a | 2658 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2659 | } |
2660 | ||
b35d266b | 2661 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2662 | { |
0112cd26 | 2663 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2664 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2665 | }; |
2666 | ||
b35d266b | 2667 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2668 | { |
0112cd26 | 2669 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2670 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2671 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2672 | }; |
2673 | ||
b35d266b | 2674 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2675 | { |
07d6d2b8 AM |
2676 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2677 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2678 | /* There are more DWARF sections than these, but they needn't be added here |
2679 | unless you have to cope with broken compilers that don't emit section | |
2680 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2681 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2682 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2683 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2684 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2685 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2686 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2687 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2688 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2689 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2690 | }; |
2691 | ||
b35d266b | 2692 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2693 | { |
07d6d2b8 | 2694 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2695 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2696 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2697 | }; |
2698 | ||
b35d266b | 2699 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2700 | { |
0112cd26 | 2701 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2702 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2703 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2704 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2705 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2706 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2707 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2708 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2709 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2710 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2711 | }; |
2712 | ||
b35d266b | 2713 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2714 | { |
07d6d2b8 AM |
2715 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2716 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2717 | }; |
2718 | ||
b35d266b | 2719 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2720 | { |
07d6d2b8 | 2721 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2722 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2723 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2724 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2725 | }; |
2726 | ||
b35d266b | 2727 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2728 | { |
0112cd26 | 2729 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2730 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2731 | }; |
2732 | ||
b35d266b | 2733 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2734 | { |
0112cd26 | 2735 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2736 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2737 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2738 | }; |
2739 | ||
b35d266b | 2740 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2741 | { |
6f9dbcd4 | 2742 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2743 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2744 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2745 | }; |
2746 | ||
b35d266b | 2747 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2748 | { |
0112cd26 NC |
2749 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2750 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2751 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2752 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2753 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2754 | }; |
2755 | ||
b35d266b | 2756 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2757 | { |
0112cd26 NC |
2758 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2759 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2760 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2761 | /* See struct bfd_elf_special_section declaration for the semantics of |
2762 | this special case where .prefix_length != strlen (.prefix). */ | |
2763 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2764 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2765 | }; |
2766 | ||
b35d266b | 2767 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2768 | { |
07d6d2b8 AM |
2769 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2770 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2771 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2772 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2773 | }; |
2774 | ||
1b315056 CS |
2775 | static const struct bfd_elf_special_section special_sections_z[] = |
2776 | { | |
07d6d2b8 AM |
2777 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2778 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2779 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2780 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2781 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2782 | }; |
2783 | ||
e4c93b56 | 2784 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2785 | { |
7f4d3958 | 2786 | special_sections_b, /* 'b' */ |
98ece1b3 | 2787 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2788 | special_sections_d, /* 'd' */ |
2789 | NULL, /* 'e' */ | |
2790 | special_sections_f, /* 'f' */ | |
2791 | special_sections_g, /* 'g' */ | |
2792 | special_sections_h, /* 'h' */ | |
2793 | special_sections_i, /* 'i' */ | |
2794 | NULL, /* 'j' */ | |
2795 | NULL, /* 'k' */ | |
2796 | special_sections_l, /* 'l' */ | |
2797 | NULL, /* 'm' */ | |
2798 | special_sections_n, /* 'n' */ | |
2799 | NULL, /* 'o' */ | |
2800 | special_sections_p, /* 'p' */ | |
2801 | NULL, /* 'q' */ | |
2802 | special_sections_r, /* 'r' */ | |
2803 | special_sections_s, /* 's' */ | |
2804 | special_sections_t, /* 't' */ | |
1b315056 CS |
2805 | NULL, /* 'u' */ |
2806 | NULL, /* 'v' */ | |
2807 | NULL, /* 'w' */ | |
2808 | NULL, /* 'x' */ | |
2809 | NULL, /* 'y' */ | |
2810 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2811 | }; |
2812 | ||
551b43fd AM |
2813 | const struct bfd_elf_special_section * |
2814 | _bfd_elf_get_special_section (const char *name, | |
2815 | const struct bfd_elf_special_section *spec, | |
2816 | unsigned int rela) | |
2f89ff8d L |
2817 | { |
2818 | int i; | |
7f4d3958 | 2819 | int len; |
7f4d3958 | 2820 | |
551b43fd | 2821 | len = strlen (name); |
7f4d3958 | 2822 | |
551b43fd | 2823 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2824 | { |
2825 | int suffix_len; | |
551b43fd | 2826 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2827 | |
2828 | if (len < prefix_len) | |
2829 | continue; | |
551b43fd | 2830 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2831 | continue; |
2832 | ||
551b43fd | 2833 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2834 | if (suffix_len <= 0) |
2835 | { | |
2836 | if (name[prefix_len] != 0) | |
2837 | { | |
2838 | if (suffix_len == 0) | |
2839 | continue; | |
2840 | if (name[prefix_len] != '.' | |
2841 | && (suffix_len == -2 | |
551b43fd | 2842 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2843 | continue; |
2844 | } | |
2845 | } | |
2846 | else | |
2847 | { | |
2848 | if (len < prefix_len + suffix_len) | |
2849 | continue; | |
2850 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2851 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2852 | suffix_len) != 0) |
2853 | continue; | |
2854 | } | |
551b43fd | 2855 | return &spec[i]; |
7dcb9820 | 2856 | } |
2f89ff8d L |
2857 | |
2858 | return NULL; | |
2859 | } | |
2860 | ||
7dcb9820 | 2861 | const struct bfd_elf_special_section * |
29ef7005 | 2862 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2863 | { |
551b43fd AM |
2864 | int i; |
2865 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2866 | const struct elf_backend_data *bed; |
2f89ff8d L |
2867 | |
2868 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2869 | if (sec->name == NULL) |
2870 | return NULL; | |
2f89ff8d | 2871 | |
29ef7005 L |
2872 | bed = get_elf_backend_data (abfd); |
2873 | spec = bed->special_sections; | |
2874 | if (spec) | |
2875 | { | |
2876 | spec = _bfd_elf_get_special_section (sec->name, | |
2877 | bed->special_sections, | |
2878 | sec->use_rela_p); | |
2879 | if (spec != NULL) | |
2880 | return spec; | |
2881 | } | |
2882 | ||
551b43fd AM |
2883 | if (sec->name[0] != '.') |
2884 | return NULL; | |
2f89ff8d | 2885 | |
551b43fd | 2886 | i = sec->name[1] - 'b'; |
1b315056 | 2887 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2888 | return NULL; |
2889 | ||
2890 | spec = special_sections[i]; | |
2f89ff8d | 2891 | |
551b43fd AM |
2892 | if (spec == NULL) |
2893 | return NULL; | |
2894 | ||
2895 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2896 | } |
2897 | ||
b34976b6 | 2898 | bfd_boolean |
217aa764 | 2899 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2900 | { |
2901 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2902 | const struct elf_backend_data *bed; |
7dcb9820 | 2903 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2904 | |
f0abc2a1 AM |
2905 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2906 | if (sdata == NULL) | |
2907 | { | |
a50b1753 | 2908 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2909 | sizeof (*sdata)); |
f0abc2a1 AM |
2910 | if (sdata == NULL) |
2911 | return FALSE; | |
217aa764 | 2912 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2913 | } |
bf572ba0 | 2914 | |
551b43fd AM |
2915 | /* Indicate whether or not this section should use RELA relocations. */ |
2916 | bed = get_elf_backend_data (abfd); | |
2917 | sec->use_rela_p = bed->default_use_rela_p; | |
2918 | ||
8c803a2d AM |
2919 | /* Set up ELF section type and flags for newly created sections, if |
2920 | there is an ABI mandated section. */ | |
2921 | ssect = (*bed->get_sec_type_attr) (abfd, sec); | |
2922 | if (ssect != NULL) | |
2f89ff8d | 2923 | { |
8c803a2d AM |
2924 | elf_section_type (sec) = ssect->type; |
2925 | elf_section_flags (sec) = ssect->attr; | |
2f89ff8d L |
2926 | } |
2927 | ||
f592407e | 2928 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2929 | } |
2930 | ||
2931 | /* Create a new bfd section from an ELF program header. | |
2932 | ||
2933 | Since program segments have no names, we generate a synthetic name | |
2934 | of the form segment<NUM>, where NUM is generally the index in the | |
2935 | program header table. For segments that are split (see below) we | |
2936 | generate the names segment<NUM>a and segment<NUM>b. | |
2937 | ||
2938 | Note that some program segments may have a file size that is different than | |
2939 | (less than) the memory size. All this means is that at execution the | |
2940 | system must allocate the amount of memory specified by the memory size, | |
2941 | but only initialize it with the first "file size" bytes read from the | |
2942 | file. This would occur for example, with program segments consisting | |
2943 | of combined data+bss. | |
2944 | ||
2945 | To handle the above situation, this routine generates TWO bfd sections | |
2946 | for the single program segment. The first has the length specified by | |
2947 | the file size of the segment, and the second has the length specified | |
2948 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2949 | into its initialized and uninitialized parts. |
252b5132 RH |
2950 | |
2951 | */ | |
2952 | ||
b34976b6 | 2953 | bfd_boolean |
217aa764 AM |
2954 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2955 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2956 | int hdr_index, |
a50b1753 | 2957 | const char *type_name) |
252b5132 RH |
2958 | { |
2959 | asection *newsect; | |
2960 | char *name; | |
2961 | char namebuf[64]; | |
d4c88bbb | 2962 | size_t len; |
252b5132 | 2963 | int split; |
502794d4 | 2964 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
2965 | |
2966 | split = ((hdr->p_memsz > 0) | |
2967 | && (hdr->p_filesz > 0) | |
2968 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2969 | |
2970 | if (hdr->p_filesz > 0) | |
252b5132 | 2971 | { |
91d6fa6a | 2972 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2973 | len = strlen (namebuf) + 1; |
a50b1753 | 2974 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2975 | if (!name) |
2976 | return FALSE; | |
2977 | memcpy (name, namebuf, len); | |
2978 | newsect = bfd_make_section (abfd, name); | |
2979 | if (newsect == NULL) | |
2980 | return FALSE; | |
502794d4 CE |
2981 | newsect->vma = hdr->p_vaddr / opb; |
2982 | newsect->lma = hdr->p_paddr / opb; | |
d5191d0c AM |
2983 | newsect->size = hdr->p_filesz; |
2984 | newsect->filepos = hdr->p_offset; | |
2985 | newsect->flags |= SEC_HAS_CONTENTS; | |
2986 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2987 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2988 | { |
d5191d0c AM |
2989 | newsect->flags |= SEC_ALLOC; |
2990 | newsect->flags |= SEC_LOAD; | |
2991 | if (hdr->p_flags & PF_X) | |
2992 | { | |
2993 | /* FIXME: all we known is that it has execute PERMISSION, | |
2994 | may be data. */ | |
2995 | newsect->flags |= SEC_CODE; | |
2996 | } | |
2997 | } | |
2998 | if (!(hdr->p_flags & PF_W)) | |
2999 | { | |
3000 | newsect->flags |= SEC_READONLY; | |
252b5132 | 3001 | } |
252b5132 RH |
3002 | } |
3003 | ||
d5191d0c | 3004 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 3005 | { |
d5191d0c AM |
3006 | bfd_vma align; |
3007 | ||
91d6fa6a | 3008 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 3009 | len = strlen (namebuf) + 1; |
a50b1753 | 3010 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3011 | if (!name) |
b34976b6 | 3012 | return FALSE; |
d4c88bbb | 3013 | memcpy (name, namebuf, len); |
252b5132 RH |
3014 | newsect = bfd_make_section (abfd, name); |
3015 | if (newsect == NULL) | |
b34976b6 | 3016 | return FALSE; |
502794d4 CE |
3017 | newsect->vma = (hdr->p_vaddr + hdr->p_filesz) / opb; |
3018 | newsect->lma = (hdr->p_paddr + hdr->p_filesz) / opb; | |
eea6121a | 3019 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3020 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3021 | align = newsect->vma & -newsect->vma; | |
3022 | if (align == 0 || align > hdr->p_align) | |
3023 | align = hdr->p_align; | |
3024 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3025 | if (hdr->p_type == PT_LOAD) |
3026 | { | |
3027 | newsect->flags |= SEC_ALLOC; | |
3028 | if (hdr->p_flags & PF_X) | |
3029 | newsect->flags |= SEC_CODE; | |
3030 | } | |
3031 | if (!(hdr->p_flags & PF_W)) | |
3032 | newsect->flags |= SEC_READONLY; | |
3033 | } | |
3034 | ||
b34976b6 | 3035 | return TRUE; |
252b5132 RH |
3036 | } |
3037 | ||
864619bb KS |
3038 | static bfd_boolean |
3039 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) | |
3040 | { | |
3041 | /* The return value is ignored. Build-ids are considered optional. */ | |
3042 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3043 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3044 | (templ, offset); | |
3045 | return FALSE; | |
3046 | } | |
3047 | ||
b34976b6 | 3048 | bfd_boolean |
91d6fa6a | 3049 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3050 | { |
9c5bfbb7 | 3051 | const struct elf_backend_data *bed; |
20cfcaae NC |
3052 | |
3053 | switch (hdr->p_type) | |
3054 | { | |
3055 | case PT_NULL: | |
91d6fa6a | 3056 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3057 | |
3058 | case PT_LOAD: | |
864619bb KS |
3059 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
3060 | return FALSE; | |
3061 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) | |
3062 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
3063 | return TRUE; | |
20cfcaae NC |
3064 | |
3065 | case PT_DYNAMIC: | |
91d6fa6a | 3066 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3067 | |
3068 | case PT_INTERP: | |
91d6fa6a | 3069 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3070 | |
3071 | case PT_NOTE: | |
91d6fa6a | 3072 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3073 | return FALSE; |
276da9b3 L |
3074 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3075 | hdr->p_align)) | |
b34976b6 AM |
3076 | return FALSE; |
3077 | return TRUE; | |
20cfcaae NC |
3078 | |
3079 | case PT_SHLIB: | |
91d6fa6a | 3080 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3081 | |
3082 | case PT_PHDR: | |
91d6fa6a | 3083 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3084 | |
811072d8 | 3085 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3086 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3087 | "eh_frame_hdr"); |
3088 | ||
2b05f1b7 | 3089 | case PT_GNU_STACK: |
91d6fa6a | 3090 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3091 | |
8c37241b | 3092 | case PT_GNU_RELRO: |
91d6fa6a | 3093 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3094 | |
20cfcaae | 3095 | default: |
8c1acd09 | 3096 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3097 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3098 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3099 | } |
3100 | } | |
3101 | ||
d4730f92 BS |
3102 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3103 | REL or RELA. */ | |
3104 | ||
3105 | Elf_Internal_Shdr * | |
3106 | _bfd_elf_single_rel_hdr (asection *sec) | |
3107 | { | |
3108 | if (elf_section_data (sec)->rel.hdr) | |
3109 | { | |
3110 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3111 | return elf_section_data (sec)->rel.hdr; | |
3112 | } | |
3113 | else | |
3114 | return elf_section_data (sec)->rela.hdr; | |
3115 | } | |
3116 | ||
3e19fb8f L |
3117 | static bfd_boolean |
3118 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3119 | Elf_Internal_Shdr *rel_hdr, | |
3120 | const char *sec_name, | |
3121 | bfd_boolean use_rela_p) | |
3122 | { | |
3123 | char *name = (char *) bfd_alloc (abfd, | |
3124 | sizeof ".rela" + strlen (sec_name)); | |
3125 | if (name == NULL) | |
3126 | return FALSE; | |
3127 | ||
3128 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3129 | rel_hdr->sh_name = | |
3130 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3131 | FALSE); | |
3132 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3133 | return FALSE; | |
3134 | ||
3135 | return TRUE; | |
3136 | } | |
3137 | ||
d4730f92 BS |
3138 | /* Allocate and initialize a section-header for a new reloc section, |
3139 | containing relocations against ASECT. It is stored in RELDATA. If | |
3140 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3141 | relocations. */ | |
23bc299b | 3142 | |
5d13b3b3 | 3143 | static bfd_boolean |
217aa764 | 3144 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3145 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3146 | const char *sec_name, |
3e19fb8f L |
3147 | bfd_boolean use_rela_p, |
3148 | bfd_boolean delay_st_name_p) | |
23bc299b | 3149 | { |
d4730f92 | 3150 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3151 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3152 | |
d4730f92 | 3153 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3154 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3155 | reldata->hdr = rel_hdr; |
23bc299b | 3156 | |
3e19fb8f L |
3157 | if (delay_st_name_p) |
3158 | rel_hdr->sh_name = (unsigned int) -1; | |
3159 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3160 | use_rela_p)) | |
b34976b6 | 3161 | return FALSE; |
23bc299b MM |
3162 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3163 | rel_hdr->sh_entsize = (use_rela_p | |
3164 | ? bed->s->sizeof_rela | |
3165 | : bed->s->sizeof_rel); | |
72de5009 | 3166 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3167 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3168 | rel_hdr->sh_addr = 0; |
3169 | rel_hdr->sh_size = 0; | |
3170 | rel_hdr->sh_offset = 0; | |
3171 | ||
b34976b6 | 3172 | return TRUE; |
23bc299b MM |
3173 | } |
3174 | ||
94be91de JB |
3175 | /* Return the default section type based on the passed in section flags. */ |
3176 | ||
3177 | int | |
3178 | bfd_elf_get_default_section_type (flagword flags) | |
3179 | { | |
0e41bebb | 3180 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3181 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3182 | return SHT_NOBITS; |
3183 | return SHT_PROGBITS; | |
3184 | } | |
3185 | ||
d4730f92 BS |
3186 | struct fake_section_arg |
3187 | { | |
3188 | struct bfd_link_info *link_info; | |
3189 | bfd_boolean failed; | |
3190 | }; | |
3191 | ||
252b5132 RH |
3192 | /* Set up an ELF internal section header for a section. */ |
3193 | ||
252b5132 | 3194 | static void |
d4730f92 | 3195 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3196 | { |
d4730f92 | 3197 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3198 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3199 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3200 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3201 | unsigned int sh_type; |
0ce398f1 | 3202 | const char *name = asect->name; |
3e19fb8f | 3203 | bfd_boolean delay_st_name_p = FALSE; |
233bf4f8 | 3204 | bfd_vma mask; |
252b5132 | 3205 | |
d4730f92 | 3206 | if (arg->failed) |
252b5132 RH |
3207 | { |
3208 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3209 | loop. */ |
252b5132 RH |
3210 | return; |
3211 | } | |
3212 | ||
d4730f92 | 3213 | this_hdr = &esd->this_hdr; |
252b5132 | 3214 | |
f6fe1ccd | 3215 | if (arg->link_info) |
0ce398f1 | 3216 | { |
f6fe1ccd L |
3217 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3218 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3219 | && (asect->flags & SEC_DEBUGGING) | |
3220 | && name[1] == 'd' | |
3221 | && name[6] == '_') | |
3222 | { | |
3223 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3224 | compressed. */ | |
3225 | asect->flags |= SEC_ELF_COMPRESS; | |
dd905818 | 3226 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3227 | name to section name section after it is compressed in |
3228 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3229 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3230 | } |
3231 | } | |
3232 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3233 | { | |
3234 | /* objcopy: rename output DWARF debug section. */ | |
3235 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3236 | { | |
3237 | /* When we decompress or compress with SHF_COMPRESSED, | |
3238 | convert section name from .zdebug_* to .debug_* if | |
3239 | needed. */ | |
3240 | if (name[1] == 'z') | |
3241 | { | |
3242 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3243 | if (new_name == NULL) | |
3244 | { | |
3245 | arg->failed = TRUE; | |
3246 | return; | |
3247 | } | |
3248 | name = new_name; | |
3249 | } | |
3250 | } | |
3251 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3252 | { |
f6fe1ccd L |
3253 | /* PR binutils/18087: Compression does not always make a |
3254 | section smaller. So only rename the section when | |
3255 | compression has actually taken place. If input section | |
3256 | name is .zdebug_*, we should never compress it again. */ | |
3257 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3258 | if (new_name == NULL) |
3259 | { | |
3260 | arg->failed = TRUE; | |
3261 | return; | |
3262 | } | |
f6fe1ccd L |
3263 | BFD_ASSERT (name[1] != 'z'); |
3264 | name = new_name; | |
0ce398f1 L |
3265 | } |
3266 | } | |
3267 | ||
3e19fb8f L |
3268 | if (delay_st_name_p) |
3269 | this_hdr->sh_name = (unsigned int) -1; | |
3270 | else | |
252b5132 | 3271 | { |
3e19fb8f L |
3272 | this_hdr->sh_name |
3273 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3274 | name, FALSE); | |
3275 | if (this_hdr->sh_name == (unsigned int) -1) | |
3276 | { | |
3277 | arg->failed = TRUE; | |
3278 | return; | |
3279 | } | |
252b5132 RH |
3280 | } |
3281 | ||
a4d8e49b | 3282 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3283 | |
3284 | if ((asect->flags & SEC_ALLOC) != 0 | |
3285 | || asect->user_set_vma) | |
502794d4 | 3286 | this_hdr->sh_addr = asect->vma * bfd_octets_per_byte (abfd, asect); |
252b5132 RH |
3287 | else |
3288 | this_hdr->sh_addr = 0; | |
3289 | ||
3290 | this_hdr->sh_offset = 0; | |
eea6121a | 3291 | this_hdr->sh_size = asect->size; |
252b5132 | 3292 | this_hdr->sh_link = 0; |
c86934ce NC |
3293 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3294 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3295 | { | |
4eca0228 | 3296 | _bfd_error_handler |
695344c0 | 3297 | /* xgettext:c-format */ |
9793eb77 | 3298 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3299 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3300 | arg->failed = TRUE; |
3301 | return; | |
3302 | } | |
233bf4f8 AM |
3303 | /* Set sh_addralign to the highest power of two given by alignment |
3304 | consistent with the section VMA. Linker scripts can force VMA. */ | |
3305 | mask = ((bfd_vma) 1 << asect->alignment_power) | this_hdr->sh_addr; | |
3306 | this_hdr->sh_addralign = mask & -mask; | |
252b5132 RH |
3307 | /* The sh_entsize and sh_info fields may have been set already by |
3308 | copy_private_section_data. */ | |
3309 | ||
3310 | this_hdr->bfd_section = asect; | |
3311 | this_hdr->contents = NULL; | |
3312 | ||
3cddba1e L |
3313 | /* If the section type is unspecified, we set it based on |
3314 | asect->flags. */ | |
98ece1b3 AM |
3315 | if ((asect->flags & SEC_GROUP) != 0) |
3316 | sh_type = SHT_GROUP; | |
98ece1b3 | 3317 | else |
94be91de | 3318 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3319 | |
3cddba1e | 3320 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3321 | this_hdr->sh_type = sh_type; |
3322 | else if (this_hdr->sh_type == SHT_NOBITS | |
3323 | && sh_type == SHT_PROGBITS | |
3324 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3325 | { |
98ece1b3 AM |
3326 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3327 | allow the link to proceed. This can happen when users link | |
3328 | non-bss input sections to bss output sections, or emit data | |
3329 | to a bss output section via a linker script. */ | |
4eca0228 | 3330 | _bfd_error_handler |
871b3ab2 | 3331 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3332 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3333 | } |
3334 | ||
2f89ff8d | 3335 | switch (this_hdr->sh_type) |
252b5132 | 3336 | { |
2f89ff8d | 3337 | default: |
2f89ff8d L |
3338 | break; |
3339 | ||
3340 | case SHT_STRTAB: | |
2f89ff8d L |
3341 | case SHT_NOTE: |
3342 | case SHT_NOBITS: | |
3343 | case SHT_PROGBITS: | |
3344 | break; | |
606851fb AM |
3345 | |
3346 | case SHT_INIT_ARRAY: | |
3347 | case SHT_FINI_ARRAY: | |
3348 | case SHT_PREINIT_ARRAY: | |
3349 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3350 | break; | |
2f89ff8d L |
3351 | |
3352 | case SHT_HASH: | |
c7ac6ff8 | 3353 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3354 | break; |
5de3bf90 | 3355 | |
2f89ff8d | 3356 | case SHT_DYNSYM: |
252b5132 | 3357 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3358 | break; |
3359 | ||
3360 | case SHT_DYNAMIC: | |
252b5132 | 3361 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3362 | break; |
3363 | ||
3364 | case SHT_RELA: | |
3365 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3366 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3367 | break; | |
3368 | ||
3369 | case SHT_REL: | |
3370 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3371 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3372 | break; | |
3373 | ||
3374 | case SHT_GNU_versym: | |
252b5132 | 3375 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3376 | break; |
3377 | ||
3378 | case SHT_GNU_verdef: | |
252b5132 RH |
3379 | this_hdr->sh_entsize = 0; |
3380 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3381 | cverdefs. The linker will set cverdefs, but sh_info will be |
3382 | zero. */ | |
252b5132 RH |
3383 | if (this_hdr->sh_info == 0) |
3384 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3385 | else | |
3386 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3387 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3388 | break; |
3389 | ||
3390 | case SHT_GNU_verneed: | |
252b5132 RH |
3391 | this_hdr->sh_entsize = 0; |
3392 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3393 | cverrefs. The linker will set cverrefs, but sh_info will be |
3394 | zero. */ | |
252b5132 RH |
3395 | if (this_hdr->sh_info == 0) |
3396 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3397 | else | |
3398 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3399 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3400 | break; |
3401 | ||
3402 | case SHT_GROUP: | |
1783205a | 3403 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3404 | break; |
fdc90cb4 JJ |
3405 | |
3406 | case SHT_GNU_HASH: | |
3407 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3408 | break; | |
dbb410c3 | 3409 | } |
252b5132 RH |
3410 | |
3411 | if ((asect->flags & SEC_ALLOC) != 0) | |
3412 | this_hdr->sh_flags |= SHF_ALLOC; | |
3413 | if ((asect->flags & SEC_READONLY) == 0) | |
3414 | this_hdr->sh_flags |= SHF_WRITE; | |
3415 | if ((asect->flags & SEC_CODE) != 0) | |
3416 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3417 | if ((asect->flags & SEC_MERGE) != 0) |
3418 | { | |
3419 | this_hdr->sh_flags |= SHF_MERGE; | |
3420 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3421 | } |
84865015 NC |
3422 | if ((asect->flags & SEC_STRINGS) != 0) |
3423 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3424 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3425 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3426 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3427 | { |
3428 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3429 | if (asect->size == 0 |
3430 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3431 | { |
3a800eb9 | 3432 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3433 | |
704afa60 | 3434 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3435 | if (o != NULL) |
3436 | { | |
704afa60 | 3437 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3438 | if (this_hdr->sh_size != 0) |
3439 | this_hdr->sh_type = SHT_NOBITS; | |
3440 | } | |
704afa60 JJ |
3441 | } |
3442 | } | |
18ae9cc1 L |
3443 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3444 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3445 | |
d4730f92 BS |
3446 | /* If the section has relocs, set up a section header for the |
3447 | SHT_REL[A] section. If two relocation sections are required for | |
3448 | this section, it is up to the processor-specific back-end to | |
3449 | create the other. */ | |
3450 | if ((asect->flags & SEC_RELOC) != 0) | |
3451 | { | |
3452 | /* When doing a relocatable link, create both REL and RELA sections if | |
3453 | needed. */ | |
3454 | if (arg->link_info | |
3455 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3456 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3457 | && (bfd_link_relocatable (arg->link_info) |
3458 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3459 | { |
3460 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3461 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3462 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3463 | { |
3464 | arg->failed = TRUE; | |
3465 | return; | |
3466 | } | |
3467 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3468 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3469 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3470 | { |
3471 | arg->failed = TRUE; | |
3472 | return; | |
3473 | } | |
3474 | } | |
3475 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3476 | (asect->use_rela_p | |
3477 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3478 | name, |
3e19fb8f L |
3479 | asect->use_rela_p, |
3480 | delay_st_name_p)) | |
db4677b8 | 3481 | { |
d4730f92 | 3482 | arg->failed = TRUE; |
db4677b8 AM |
3483 | return; |
3484 | } | |
d4730f92 BS |
3485 | } |
3486 | ||
252b5132 | 3487 | /* Check for processor-specific section types. */ |
0414f35b | 3488 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3489 | if (bed->elf_backend_fake_sections |
3490 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3491 | { |
3492 | arg->failed = TRUE; | |
3493 | return; | |
3494 | } | |
252b5132 | 3495 | |
42bb2e33 | 3496 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3497 | { |
3498 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3499 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3500 | this_hdr->sh_type = sh_type; |
3501 | } | |
252b5132 RH |
3502 | } |
3503 | ||
bcacc0f5 AM |
3504 | /* Fill in the contents of a SHT_GROUP section. Called from |
3505 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3506 | when ELF targets use the generic linker, ld. Called for ld -r | |
3507 | from bfd_elf_final_link. */ | |
dbb410c3 | 3508 | |
1126897b | 3509 | void |
217aa764 | 3510 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3511 | { |
a50b1753 | 3512 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3513 | asection *elt, *first; |
dbb410c3 | 3514 | unsigned char *loc; |
b34976b6 | 3515 | bfd_boolean gas; |
dbb410c3 | 3516 | |
7e4111ad L |
3517 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3518 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3519 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3520 | || sec->size == 0 | |
dbb410c3 AM |
3521 | || *failedptr) |
3522 | return; | |
3523 | ||
bcacc0f5 AM |
3524 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3525 | { | |
3526 | unsigned long symindx = 0; | |
3527 | ||
3528 | /* elf_group_id will have been set up by objcopy and the | |
3529 | generic linker. */ | |
3530 | if (elf_group_id (sec) != NULL) | |
3531 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3532 | |
bcacc0f5 AM |
3533 | if (symindx == 0) |
3534 | { | |
3535 | /* If called from the assembler, swap_out_syms will have set up | |
6a541707 NC |
3536 | elf_section_syms. |
3537 | PR 25699: A corrupt input file could contain bogus group info. */ | |
3538 | if (elf_section_syms (abfd) == NULL) | |
3539 | { | |
3540 | *failedptr = TRUE; | |
3541 | return; | |
3542 | } | |
bcacc0f5 AM |
3543 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; |
3544 | } | |
3545 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3546 | } | |
3547 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3548 | { |
bcacc0f5 AM |
3549 | /* The ELF backend linker sets sh_info to -2 when the group |
3550 | signature symbol is global, and thus the index can't be | |
3551 | set until all local symbols are output. */ | |
53720c49 AM |
3552 | asection *igroup; |
3553 | struct bfd_elf_section_data *sec_data; | |
3554 | unsigned long symndx; | |
3555 | unsigned long extsymoff; | |
bcacc0f5 AM |
3556 | struct elf_link_hash_entry *h; |
3557 | ||
53720c49 AM |
3558 | /* The point of this little dance to the first SHF_GROUP section |
3559 | then back to the SHT_GROUP section is that this gets us to | |
3560 | the SHT_GROUP in the input object. */ | |
3561 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3562 | sec_data = elf_section_data (igroup); | |
3563 | symndx = sec_data->this_hdr.sh_info; | |
3564 | extsymoff = 0; | |
bcacc0f5 AM |
3565 | if (!elf_bad_symtab (igroup->owner)) |
3566 | { | |
3567 | Elf_Internal_Shdr *symtab_hdr; | |
3568 | ||
3569 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3570 | extsymoff = symtab_hdr->sh_info; | |
3571 | } | |
3572 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3573 | while (h->root.type == bfd_link_hash_indirect | |
3574 | || h->root.type == bfd_link_hash_warning) | |
3575 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3576 | ||
3577 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3578 | } |
dbb410c3 | 3579 | |
1126897b | 3580 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3581 | gas = TRUE; |
dbb410c3 AM |
3582 | if (sec->contents == NULL) |
3583 | { | |
b34976b6 | 3584 | gas = FALSE; |
a50b1753 | 3585 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3586 | |
3587 | /* Arrange for the section to be written out. */ | |
3588 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3589 | if (sec->contents == NULL) |
3590 | { | |
b34976b6 | 3591 | *failedptr = TRUE; |
dbb410c3 AM |
3592 | return; |
3593 | } | |
3594 | } | |
3595 | ||
eea6121a | 3596 | loc = sec->contents + sec->size; |
dbb410c3 | 3597 | |
9dce4196 AM |
3598 | /* Get the pointer to the first section in the group that gas |
3599 | squirreled away here. objcopy arranges for this to be set to the | |
3600 | start of the input section group. */ | |
3601 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3602 | |
3603 | /* First element is a flag word. Rest of section is elf section | |
3604 | indices for all the sections of the group. Write them backwards | |
3605 | just to keep the group in the same order as given in .section | |
3606 | directives, not that it matters. */ | |
3607 | while (elt != NULL) | |
3608 | { | |
9dce4196 | 3609 | asection *s; |
9dce4196 | 3610 | |
9dce4196 | 3611 | s = elt; |
415f38a6 AM |
3612 | if (!gas) |
3613 | s = s->output_section; | |
3614 | if (s != NULL | |
3615 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3616 | { |
db4677b8 | 3617 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3618 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3619 | ||
3620 | if (elf_sec->rel.hdr != NULL | |
3621 | && (gas | |
3622 | || (input_elf_sec->rel.hdr != NULL | |
3623 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3624 | { |
28e07a05 | 3625 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3626 | loc -= 4; |
3627 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3628 | } | |
28e07a05 AM |
3629 | if (elf_sec->rela.hdr != NULL |
3630 | && (gas | |
3631 | || (input_elf_sec->rela.hdr != NULL | |
3632 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3633 | { |
28e07a05 | 3634 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3635 | loc -= 4; |
3636 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3637 | } | |
01e1a5bc | 3638 | loc -= 4; |
db4677b8 | 3639 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3640 | } |
945906ff | 3641 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3642 | if (elt == first) |
3643 | break; | |
dbb410c3 AM |
3644 | } |
3645 | ||
7bdf4127 AB |
3646 | loc -= 4; |
3647 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3648 | |
9dce4196 | 3649 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3650 | } |
3651 | ||
bce964aa AM |
3652 | /* Given NAME, the name of a relocation section stripped of its |
3653 | .rel/.rela prefix, return the section in ABFD to which the | |
3654 | relocations apply. */ | |
bd53a53a L |
3655 | |
3656 | asection * | |
bce964aa AM |
3657 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3658 | { | |
3659 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3660 | section likely apply to .got.plt or .got section. */ | |
3661 | if (get_elf_backend_data (abfd)->want_got_plt | |
3662 | && strcmp (name, ".plt") == 0) | |
3663 | { | |
3664 | asection *sec; | |
3665 | ||
3666 | name = ".got.plt"; | |
3667 | sec = bfd_get_section_by_name (abfd, name); | |
3668 | if (sec != NULL) | |
3669 | return sec; | |
3670 | name = ".got"; | |
3671 | } | |
3672 | ||
3673 | return bfd_get_section_by_name (abfd, name); | |
3674 | } | |
3675 | ||
3676 | /* Return the section to which RELOC_SEC applies. */ | |
3677 | ||
3678 | static asection * | |
3679 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3680 | { |
3681 | const char *name; | |
3682 | unsigned int type; | |
3683 | bfd *abfd; | |
bce964aa | 3684 | const struct elf_backend_data *bed; |
bd53a53a L |
3685 | |
3686 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3687 | if (type != SHT_REL && type != SHT_RELA) | |
3688 | return NULL; | |
3689 | ||
3690 | /* We look up the section the relocs apply to by name. */ | |
3691 | name = reloc_sec->name; | |
bce964aa AM |
3692 | if (strncmp (name, ".rel", 4) != 0) |
3693 | return NULL; | |
3694 | name += 4; | |
3695 | if (type == SHT_RELA && *name++ != 'a') | |
3696 | return NULL; | |
bd53a53a | 3697 | |
bd53a53a | 3698 | abfd = reloc_sec->owner; |
bce964aa AM |
3699 | bed = get_elf_backend_data (abfd); |
3700 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3701 | } |
3702 | ||
252b5132 RH |
3703 | /* Assign all ELF section numbers. The dummy first section is handled here |
3704 | too. The link/info pointers for the standard section types are filled | |
67411cbf AM |
3705 | in here too, while we're at it. LINK_INFO will be 0 when arriving |
3706 | here for objcopy, and when using the generic ELF linker. */ | |
252b5132 | 3707 | |
b34976b6 | 3708 | static bfd_boolean |
da9f89d4 | 3709 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3710 | { |
3711 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3712 | asection *sec; | |
3e19fb8f | 3713 | unsigned int section_number; |
252b5132 | 3714 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3715 | struct bfd_elf_section_data *d; |
3516e984 | 3716 | bfd_boolean need_symtab; |
446f7ed5 | 3717 | size_t amt; |
252b5132 RH |
3718 | |
3719 | section_number = 1; | |
3720 | ||
2b0f7ef9 JJ |
3721 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3722 | ||
da9f89d4 | 3723 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3724 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3725 | { |
ef53be89 | 3726 | size_t reloc_count = 0; |
14f2c699 | 3727 | |
da9f89d4 | 3728 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3729 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3730 | { |
5daa8fe7 | 3731 | d = elf_section_data (sec); |
da9f89d4 L |
3732 | |
3733 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3734 | { |
5daa8fe7 | 3735 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3736 | { |
3737 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3738 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3739 | abfd->section_count--; |
da9f89d4 | 3740 | } |
08a40648 | 3741 | else |
4fbb74a6 | 3742 | d->this_idx = section_number++; |
da9f89d4 | 3743 | } |
14f2c699 L |
3744 | |
3745 | /* Count relocations. */ | |
3746 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3747 | } |
14f2c699 L |
3748 | |
3749 | /* Clear HAS_RELOC if there are no relocations. */ | |
3750 | if (reloc_count == 0) | |
3751 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3752 | } |
3753 | ||
3754 | for (sec = abfd->sections; sec; sec = sec->next) | |
3755 | { | |
3756 | d = elf_section_data (sec); | |
3757 | ||
3758 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3759 | d->this_idx = section_number++; |
3e19fb8f L |
3760 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3761 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3762 | if (d->rel.hdr) |
2b0f7ef9 | 3763 | { |
d4730f92 | 3764 | d->rel.idx = section_number++; |
3e19fb8f L |
3765 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3766 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3767 | } |
d4730f92 BS |
3768 | else |
3769 | d->rel.idx = 0; | |
23bc299b | 3770 | |
d4730f92 | 3771 | if (d->rela.hdr) |
2b0f7ef9 | 3772 | { |
d4730f92 | 3773 | d->rela.idx = section_number++; |
3e19fb8f L |
3774 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3775 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3776 | } |
23bc299b | 3777 | else |
d4730f92 | 3778 | d->rela.idx = 0; |
252b5132 RH |
3779 | } |
3780 | ||
3516e984 L |
3781 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3782 | || (link_info == NULL | |
3783 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3784 | == HAS_RELOC))); | |
3785 | if (need_symtab) | |
252b5132 | 3786 | { |
12bd6957 | 3787 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3788 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3789 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3790 | { |
7a6e0d89 | 3791 | elf_section_list *entry; |
6a40cf0c NC |
3792 | |
3793 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3794 | ||
7a6e0d89 | 3795 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3796 | entry->ndx = section_number++; |
3797 | elf_symtab_shndx_list (abfd) = entry; | |
3798 | entry->hdr.sh_name | |
9ad5cbcf | 3799 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3800 | ".symtab_shndx", FALSE); |
6a40cf0c | 3801 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3802 | return FALSE; |
9ad5cbcf | 3803 | } |
12bd6957 | 3804 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3805 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3806 | } |
3807 | ||
dd905818 NC |
3808 | elf_shstrtab_sec (abfd) = section_number++; |
3809 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3810 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3811 | ||
1c52a645 L |
3812 | if (section_number >= SHN_LORESERVE) |
3813 | { | |
695344c0 | 3814 | /* xgettext:c-format */ |
871b3ab2 | 3815 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3816 | abfd, section_number); |
3817 | return FALSE; | |
3818 | } | |
3819 | ||
9ad5cbcf | 3820 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3821 | elf_elfheader (abfd)->e_shnum = section_number; |
3822 | ||
3823 | /* Set up the list of section header pointers, in agreement with the | |
3824 | indices. */ | |
446f7ed5 AM |
3825 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
3826 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
252b5132 | 3827 | if (i_shdrp == NULL) |
b34976b6 | 3828 | return FALSE; |
252b5132 | 3829 | |
a50b1753 | 3830 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3831 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3832 | if (i_shdrp[0] == NULL) |
3833 | { | |
3834 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3835 | return FALSE; |
252b5132 | 3836 | } |
252b5132 RH |
3837 | |
3838 | elf_elfsections (abfd) = i_shdrp; | |
3839 | ||
12bd6957 | 3840 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3841 | if (need_symtab) |
252b5132 | 3842 | { |
12bd6957 | 3843 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3844 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3845 | { |
6a40cf0c NC |
3846 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3847 | BFD_ASSERT (entry != NULL); | |
3848 | i_shdrp[entry->ndx] = & entry->hdr; | |
3849 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3850 | } |
12bd6957 AM |
3851 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3852 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3853 | } |
38ce5b11 | 3854 | |
252b5132 RH |
3855 | for (sec = abfd->sections; sec; sec = sec->next) |
3856 | { | |
252b5132 | 3857 | asection *s; |
252b5132 | 3858 | |
91d6fa6a NC |
3859 | d = elf_section_data (sec); |
3860 | ||
252b5132 | 3861 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3862 | if (d->rel.idx != 0) |
3863 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3864 | if (d->rela.idx != 0) | |
3865 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3866 | |
3867 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3868 | ||
3869 | /* sh_link of a reloc section is the section index of the symbol | |
3870 | table. sh_info is the section index of the section to which | |
3871 | the relocation entries apply. */ | |
d4730f92 | 3872 | if (d->rel.idx != 0) |
252b5132 | 3873 | { |
12bd6957 | 3874 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3875 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3876 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3877 | } |
d4730f92 | 3878 | if (d->rela.idx != 0) |
23bc299b | 3879 | { |
12bd6957 | 3880 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3881 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3882 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3883 | } |
252b5132 | 3884 | |
38ce5b11 L |
3885 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3886 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3887 | { | |
3888 | s = elf_linked_to_section (sec); | |
b71702f1 NC |
3889 | /* We can now have a NULL linked section pointer. |
3890 | This happens when the sh_link field is 0, which is done | |
3891 | when a linked to section is discarded but the linking | |
3892 | section has been retained for some reason. */ | |
38ce5b11 | 3893 | if (s) |
38ce5b11 | 3894 | { |
67411cbf AM |
3895 | /* Check discarded linkonce section. */ |
3896 | if (discarded_section (s)) | |
38ce5b11 | 3897 | { |
67411cbf AM |
3898 | asection *kept; |
3899 | _bfd_error_handler | |
3900 | /* xgettext:c-format */ | |
3901 | (_("%pB: sh_link of section `%pA' points to" | |
3902 | " discarded section `%pA' of `%pB'"), | |
3903 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3904 | /* Point to the kept section if it has the same | |
3905 | size as the discarded one. */ | |
3906 | kept = _bfd_elf_check_kept_section (s, link_info); | |
3907 | if (kept == NULL) | |
f2876037 | 3908 | { |
f2876037 L |
3909 | bfd_set_error (bfd_error_bad_value); |
3910 | return FALSE; | |
3911 | } | |
67411cbf AM |
3912 | s = kept; |
3913 | } | |
3914 | /* Handle objcopy. */ | |
3915 | else if (s->output_section == NULL) | |
3916 | { | |
3917 | _bfd_error_handler | |
3918 | /* xgettext:c-format */ | |
3919 | (_("%pB: sh_link of section `%pA' points to" | |
3920 | " removed section `%pA' of `%pB'"), | |
3921 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3922 | bfd_set_error (bfd_error_bad_value); | |
3923 | return FALSE; | |
f2876037 | 3924 | } |
67411cbf | 3925 | s = s->output_section; |
ccd2ec6a L |
3926 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3927 | } | |
38ce5b11 L |
3928 | } |
3929 | ||
252b5132 RH |
3930 | switch (d->this_hdr.sh_type) |
3931 | { | |
3932 | case SHT_REL: | |
3933 | case SHT_RELA: | |
3934 | /* A reloc section which we are treating as a normal BFD | |
3935 | section. sh_link is the section index of the symbol | |
3936 | table. sh_info is the section index of the section to | |
3937 | which the relocation entries apply. We assume that an | |
3938 | allocated reloc section uses the dynamic symbol table. | |
3939 | FIXME: How can we be sure? */ | |
3940 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3941 | if (s != NULL) | |
3942 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3943 | ||
bce964aa | 3944 | s = elf_get_reloc_section (sec); |
252b5132 | 3945 | if (s != NULL) |
9ef5d938 L |
3946 | { |
3947 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3948 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3949 | } | |
252b5132 RH |
3950 | break; |
3951 | ||
3952 | case SHT_STRTAB: | |
3953 | /* We assume that a section named .stab*str is a stabs | |
3954 | string section. We look for a section with the same name | |
3955 | but without the trailing ``str'', and set its sh_link | |
3956 | field to point to this section. */ | |
0112cd26 | 3957 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3958 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3959 | { | |
3960 | size_t len; | |
3961 | char *alc; | |
3962 | ||
3963 | len = strlen (sec->name); | |
a50b1753 | 3964 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3965 | if (alc == NULL) |
b34976b6 | 3966 | return FALSE; |
d4c88bbb | 3967 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3968 | alc[len - 3] = '\0'; |
3969 | s = bfd_get_section_by_name (abfd, alc); | |
3970 | free (alc); | |
3971 | if (s != NULL) | |
3972 | { | |
3973 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3974 | ||
3975 | /* This is a .stab section. */ | |
34ca5531 | 3976 | elf_section_data (s)->this_hdr.sh_entsize = 12; |
252b5132 RH |
3977 | } |
3978 | } | |
3979 | break; | |
3980 | ||
3981 | case SHT_DYNAMIC: | |
3982 | case SHT_DYNSYM: | |
3983 | case SHT_GNU_verneed: | |
3984 | case SHT_GNU_verdef: | |
3985 | /* sh_link is the section header index of the string table | |
3986 | used for the dynamic entries, or the symbol table, or the | |
3987 | version strings. */ | |
3988 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3989 | if (s != NULL) | |
3990 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3991 | break; | |
3992 | ||
7f1204bb JJ |
3993 | case SHT_GNU_LIBLIST: |
3994 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3995 | list used for the dynamic entries, or the symbol table, or |
3996 | the version strings. */ | |
7f1204bb JJ |
3997 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3998 | ? ".dynstr" : ".gnu.libstr"); | |
3999 | if (s != NULL) | |
4000 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4001 | break; | |
4002 | ||
252b5132 | 4003 | case SHT_HASH: |
fdc90cb4 | 4004 | case SHT_GNU_HASH: |
252b5132 RH |
4005 | case SHT_GNU_versym: |
4006 | /* sh_link is the section header index of the symbol table | |
4007 | this hash table or version table is for. */ | |
4008 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4009 | if (s != NULL) | |
4010 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4011 | break; | |
dbb410c3 AM |
4012 | |
4013 | case SHT_GROUP: | |
12bd6957 | 4014 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4015 | } |
4016 | } | |
4017 | ||
3e19fb8f L |
4018 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4019 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4020 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4021 | ||
b34976b6 | 4022 | return TRUE; |
252b5132 RH |
4023 | } |
4024 | ||
5372391b | 4025 | static bfd_boolean |
217aa764 | 4026 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4027 | { |
4028 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4029 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4030 | if (bed->elf_backend_sym_is_global) |
4031 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4032 | |
e47bf690 | 4033 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4034 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4035 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4036 | } |
4037 | ||
76359541 TP |
4038 | /* Filter global symbols of ABFD to include in the import library. All |
4039 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4040 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4041 | the beginning of that array. | |
4042 | ||
4043 | Returns the number of symbols to keep. */ | |
4044 | ||
4045 | unsigned int | |
4046 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4047 | asymbol **syms, long symcount) | |
4048 | { | |
4049 | long src_count, dst_count = 0; | |
4050 | ||
4051 | for (src_count = 0; src_count < symcount; src_count++) | |
4052 | { | |
4053 | asymbol *sym = syms[src_count]; | |
4054 | char *name = (char *) bfd_asymbol_name (sym); | |
4055 | struct bfd_link_hash_entry *h; | |
4056 | ||
4057 | if (!sym_is_global (abfd, sym)) | |
4058 | continue; | |
4059 | ||
4060 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4061 | if (h == NULL) |
4062 | continue; | |
76359541 TP |
4063 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4064 | continue; | |
76359541 TP |
4065 | if (h->linker_def || h->ldscript_def) |
4066 | continue; | |
4067 | ||
4068 | syms[dst_count++] = sym; | |
4069 | } | |
4070 | ||
4071 | syms[dst_count] = NULL; | |
4072 | ||
4073 | return dst_count; | |
4074 | } | |
4075 | ||
5372391b | 4076 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4077 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4078 | |
4079 | static bfd_boolean | |
4080 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4081 | { | |
c6d8cab4 L |
4082 | elf_symbol_type *type_ptr; |
4083 | ||
db0c309f NC |
4084 | if (sym == NULL) |
4085 | return FALSE; | |
4086 | ||
c6d8cab4 L |
4087 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4088 | return FALSE; | |
4089 | ||
db0c309f NC |
4090 | if (sym->section == NULL) |
4091 | return TRUE; | |
4092 | ||
c1229f84 | 4093 | type_ptr = elf_symbol_from (sym); |
c6d8cab4 L |
4094 | return ((type_ptr != NULL |
4095 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4096 | && bfd_is_abs_section (sym->section)) | |
4097 | || !(sym->section->owner == abfd | |
db0c309f NC |
4098 | || (sym->section->output_section != NULL |
4099 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4100 | && sym->section->output_offset == 0) |
4101 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4102 | } |
4103 | ||
2633a79c AM |
4104 | /* Map symbol from it's internal number to the external number, moving |
4105 | all local symbols to be at the head of the list. */ | |
4106 | ||
b34976b6 | 4107 | static bfd_boolean |
12bd6957 | 4108 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4109 | { |
dc810e39 | 4110 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4111 | asymbol **syms = bfd_get_outsymbols (abfd); |
4112 | asymbol **sect_syms; | |
dc810e39 AM |
4113 | unsigned int num_locals = 0; |
4114 | unsigned int num_globals = 0; | |
4115 | unsigned int num_locals2 = 0; | |
4116 | unsigned int num_globals2 = 0; | |
7292b3ac | 4117 | unsigned int max_index = 0; |
dc810e39 | 4118 | unsigned int idx; |
252b5132 RH |
4119 | asection *asect; |
4120 | asymbol **new_syms; | |
446f7ed5 | 4121 | size_t amt; |
252b5132 RH |
4122 | |
4123 | #ifdef DEBUG | |
4124 | fprintf (stderr, "elf_map_symbols\n"); | |
4125 | fflush (stderr); | |
4126 | #endif | |
4127 | ||
252b5132 RH |
4128 | for (asect = abfd->sections; asect; asect = asect->next) |
4129 | { | |
4130 | if (max_index < asect->index) | |
4131 | max_index = asect->index; | |
4132 | } | |
4133 | ||
4134 | max_index++; | |
446f7ed5 AM |
4135 | amt = max_index * sizeof (asymbol *); |
4136 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 | 4137 | if (sect_syms == NULL) |
b34976b6 | 4138 | return FALSE; |
252b5132 | 4139 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4140 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4141 | |
079e9a2f AM |
4142 | /* Init sect_syms entries for any section symbols we have already |
4143 | decided to output. */ | |
252b5132 RH |
4144 | for (idx = 0; idx < symcount; idx++) |
4145 | { | |
dc810e39 | 4146 | asymbol *sym = syms[idx]; |
c044fabd | 4147 | |
252b5132 | 4148 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4149 | && sym->value == 0 |
2633a79c AM |
4150 | && !ignore_section_sym (abfd, sym) |
4151 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4152 | { |
5372391b | 4153 | asection *sec = sym->section; |
252b5132 | 4154 | |
5372391b AM |
4155 | if (sec->owner != abfd) |
4156 | sec = sec->output_section; | |
252b5132 | 4157 | |
5372391b | 4158 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4159 | } |
4160 | } | |
4161 | ||
252b5132 RH |
4162 | /* Classify all of the symbols. */ |
4163 | for (idx = 0; idx < symcount; idx++) | |
4164 | { | |
2633a79c | 4165 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4166 | num_globals++; |
2633a79c AM |
4167 | else if (!ignore_section_sym (abfd, syms[idx])) |
4168 | num_locals++; | |
252b5132 | 4169 | } |
079e9a2f | 4170 | |
5372391b | 4171 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4172 | sections will already have a section symbol in outsymbols, but |
4173 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4174 | at least in that case. */ | |
252b5132 RH |
4175 | for (asect = abfd->sections; asect; asect = asect->next) |
4176 | { | |
079e9a2f | 4177 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4178 | { |
079e9a2f | 4179 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4180 | num_locals++; |
4181 | else | |
4182 | num_globals++; | |
252b5132 RH |
4183 | } |
4184 | } | |
4185 | ||
4186 | /* Now sort the symbols so the local symbols are first. */ | |
446f7ed5 AM |
4187 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
4188 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 | 4189 | if (new_syms == NULL) |
b34976b6 | 4190 | return FALSE; |
252b5132 RH |
4191 | |
4192 | for (idx = 0; idx < symcount; idx++) | |
4193 | { | |
4194 | asymbol *sym = syms[idx]; | |
dc810e39 | 4195 | unsigned int i; |
252b5132 | 4196 | |
2633a79c AM |
4197 | if (sym_is_global (abfd, sym)) |
4198 | i = num_locals + num_globals2++; | |
4199 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4200 | i = num_locals2++; |
4201 | else | |
2633a79c | 4202 | continue; |
252b5132 RH |
4203 | new_syms[i] = sym; |
4204 | sym->udata.i = i + 1; | |
4205 | } | |
4206 | for (asect = abfd->sections; asect; asect = asect->next) | |
4207 | { | |
079e9a2f | 4208 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4209 | { |
079e9a2f | 4210 | asymbol *sym = asect->symbol; |
dc810e39 | 4211 | unsigned int i; |
252b5132 | 4212 | |
079e9a2f | 4213 | sect_syms[asect->index] = sym; |
252b5132 RH |
4214 | if (!sym_is_global (abfd, sym)) |
4215 | i = num_locals2++; | |
4216 | else | |
4217 | i = num_locals + num_globals2++; | |
4218 | new_syms[i] = sym; | |
4219 | sym->udata.i = i + 1; | |
4220 | } | |
4221 | } | |
4222 | ||
4223 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4224 | ||
12bd6957 | 4225 | *pnum_locals = num_locals; |
b34976b6 | 4226 | return TRUE; |
252b5132 RH |
4227 | } |
4228 | ||
4229 | /* Align to the maximum file alignment that could be required for any | |
4230 | ELF data structure. */ | |
4231 | ||
268b6b39 | 4232 | static inline file_ptr |
217aa764 | 4233 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4234 | { |
4235 | return (off + align - 1) & ~(align - 1); | |
4236 | } | |
4237 | ||
4238 | /* Assign a file position to a section, optionally aligning to the | |
4239 | required section alignment. */ | |
4240 | ||
217aa764 AM |
4241 | file_ptr |
4242 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4243 | file_ptr offset, | |
4244 | bfd_boolean align) | |
252b5132 | 4245 | { |
72de5009 AM |
4246 | if (align && i_shdrp->sh_addralign > 1) |
4247 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4248 | i_shdrp->sh_offset = offset; |
4249 | if (i_shdrp->bfd_section != NULL) | |
4250 | i_shdrp->bfd_section->filepos = offset; | |
4251 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4252 | offset += i_shdrp->sh_size; | |
4253 | return offset; | |
4254 | } | |
4255 | ||
4256 | /* Compute the file positions we are going to put the sections at, and | |
4257 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4258 | is not NULL, this is being called by the ELF backend linker. */ | |
4259 | ||
b34976b6 | 4260 | bfd_boolean |
217aa764 AM |
4261 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4262 | struct bfd_link_info *link_info) | |
252b5132 | 4263 | { |
9c5bfbb7 | 4264 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4265 | struct fake_section_arg fsargs; |
b34976b6 | 4266 | bfd_boolean failed; |
ef10c3ac | 4267 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4268 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4269 | bfd_boolean need_symtab; |
252b5132 RH |
4270 | |
4271 | if (abfd->output_has_begun) | |
b34976b6 | 4272 | return TRUE; |
252b5132 RH |
4273 | |
4274 | /* Do any elf backend specific processing first. */ | |
4275 | if (bed->elf_backend_begin_write_processing) | |
4276 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4277 | ||
ed7e9d0b | 4278 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
b34976b6 | 4279 | return FALSE; |
252b5132 | 4280 | |
d4730f92 BS |
4281 | fsargs.failed = FALSE; |
4282 | fsargs.link_info = link_info; | |
4283 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4284 | if (fsargs.failed) | |
b34976b6 | 4285 | return FALSE; |
252b5132 | 4286 | |
da9f89d4 | 4287 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4288 | return FALSE; |
252b5132 RH |
4289 | |
4290 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4291 | need_symtab = (link_info == NULL |
4292 | && (bfd_get_symcount (abfd) > 0 | |
4293 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4294 | == HAS_RELOC))); | |
4295 | if (need_symtab) | |
252b5132 RH |
4296 | { |
4297 | /* Non-zero if doing a relocatable link. */ | |
4298 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4299 | ||
4300 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4301 | return FALSE; |
252b5132 RH |
4302 | } |
4303 | ||
d4730f92 | 4304 | failed = FALSE; |
1126897b | 4305 | if (link_info == NULL) |
dbb410c3 | 4306 | { |
1126897b | 4307 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4308 | if (failed) |
b34976b6 | 4309 | return FALSE; |
dbb410c3 AM |
4310 | } |
4311 | ||
252b5132 | 4312 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4313 | /* sh_name was set in init_file_header. */ |
252b5132 | 4314 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4315 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4316 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4317 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4318 | shstrtab_hdr->sh_entsize = 0; |
4319 | shstrtab_hdr->sh_link = 0; | |
4320 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4321 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4322 | shstrtab_hdr->sh_addralign = 1; |
4323 | ||
c84fca4d | 4324 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4325 | return FALSE; |
252b5132 | 4326 | |
3516e984 | 4327 | if (need_symtab) |
252b5132 RH |
4328 | { |
4329 | file_ptr off; | |
4330 | Elf_Internal_Shdr *hdr; | |
4331 | ||
12bd6957 | 4332 | off = elf_next_file_pos (abfd); |
252b5132 | 4333 | |
6a40cf0c | 4334 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4335 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4336 | |
6a40cf0c NC |
4337 | if (elf_symtab_shndx_list (abfd) != NULL) |
4338 | { | |
4339 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4340 | if (hdr->sh_size != 0) | |
4341 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4342 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4343 | } | |
9ad5cbcf | 4344 | |
252b5132 | 4345 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4346 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4347 | |
12bd6957 | 4348 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4349 | |
4350 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4351 | out. */ |
252b5132 | 4352 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4353 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4354 | return FALSE; |
ef10c3ac | 4355 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4356 | } |
4357 | ||
b34976b6 | 4358 | abfd->output_has_begun = TRUE; |
252b5132 | 4359 | |
b34976b6 | 4360 | return TRUE; |
252b5132 RH |
4361 | } |
4362 | ||
8ded5a0f AM |
4363 | /* Make an initial estimate of the size of the program header. If we |
4364 | get the number wrong here, we'll redo section placement. */ | |
4365 | ||
4366 | static bfd_size_type | |
4367 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4368 | { | |
4369 | size_t segs; | |
4370 | asection *s; | |
2b05f1b7 | 4371 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4372 | |
4373 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4374 | and one for data. */ | |
4375 | segs = 2; | |
4376 | ||
4377 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4378 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4379 | { |
4380 | /* If we have a loadable interpreter section, we need a | |
4381 | PT_INTERP segment. In this case, assume we also need a | |
4382 | PT_PHDR segment, although that may not be true for all | |
4383 | targets. */ | |
e9a38e0f | 4384 | segs += 2; |
8ded5a0f AM |
4385 | } |
4386 | ||
4387 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4388 | { | |
4389 | /* We need a PT_DYNAMIC segment. */ | |
4390 | ++segs; | |
f210dcff | 4391 | } |
08a40648 | 4392 | |
ceae84aa | 4393 | if (info != NULL && info->relro) |
f210dcff L |
4394 | { |
4395 | /* We need a PT_GNU_RELRO segment. */ | |
4396 | ++segs; | |
8ded5a0f AM |
4397 | } |
4398 | ||
12bd6957 | 4399 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4400 | { |
4401 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4402 | ++segs; | |
4403 | } | |
4404 | ||
12bd6957 | 4405 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4406 | { |
2b05f1b7 L |
4407 | /* We need a PT_GNU_STACK segment. */ |
4408 | ++segs; | |
4409 | } | |
94b11780 | 4410 | |
0a59decb L |
4411 | s = bfd_get_section_by_name (abfd, |
4412 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4413 | if (s != NULL && s->size != 0) | |
4414 | { | |
4415 | /* We need a PT_GNU_PROPERTY segment. */ | |
4416 | ++segs; | |
4417 | } | |
4418 | ||
2b05f1b7 L |
4419 | for (s = abfd->sections; s != NULL; s = s->next) |
4420 | { | |
8ded5a0f | 4421 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4422 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4423 | { |
23e463ed | 4424 | unsigned int alignment_power; |
8ded5a0f AM |
4425 | /* We need a PT_NOTE segment. */ |
4426 | ++segs; | |
23e463ed L |
4427 | /* Try to create just one PT_NOTE segment for all adjacent |
4428 | loadable SHT_NOTE sections. gABI requires that within a | |
4429 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4430 | each note should have the same alignment. So we check | |
4431 | whether the sections are correctly aligned. */ | |
4432 | alignment_power = s->alignment_power; | |
4433 | while (s->next != NULL | |
4434 | && s->next->alignment_power == alignment_power | |
4435 | && (s->next->flags & SEC_LOAD) != 0 | |
4436 | && elf_section_type (s->next) == SHT_NOTE) | |
4437 | s = s->next; | |
8ded5a0f AM |
4438 | } |
4439 | } | |
4440 | ||
4441 | for (s = abfd->sections; s != NULL; s = s->next) | |
4442 | { | |
4443 | if (s->flags & SEC_THREAD_LOCAL) | |
4444 | { | |
4445 | /* We need a PT_TLS segment. */ | |
4446 | ++segs; | |
4447 | break; | |
4448 | } | |
4449 | } | |
4450 | ||
2b05f1b7 | 4451 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4452 | |
df3a023b AM |
4453 | if ((abfd->flags & D_PAGED) != 0 |
4454 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4455 | { | |
4456 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4457 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4458 | for (s = abfd->sections; s != NULL; s = s->next) | |
4459 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4460 | { | |
4461 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4462 | { | |
4463 | _bfd_error_handler | |
4464 | /* xgettext:c-format */ | |
4465 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4466 | "sh_info field: %d"), | |
4467 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4468 | continue; | |
4469 | } | |
4470 | /* Align mbind section to page size. */ | |
4471 | if (s->alignment_power < page_align_power) | |
4472 | s->alignment_power = page_align_power; | |
4473 | segs ++; | |
4474 | } | |
4475 | } | |
4476 | ||
4477 | /* Let the backend count up any program headers it might need. */ | |
4478 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4479 | { |
4480 | int a; | |
4481 | ||
4482 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4483 | if (a == -1) | |
4484 | abort (); | |
4485 | segs += a; | |
4486 | } | |
4487 | ||
4488 | return segs * bed->s->sizeof_phdr; | |
4489 | } | |
4490 | ||
2ea37f1c NC |
4491 | /* Find the segment that contains the output_section of section. */ |
4492 | ||
4493 | Elf_Internal_Phdr * | |
4494 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4495 | { | |
4496 | struct elf_segment_map *m; | |
4497 | Elf_Internal_Phdr *p; | |
4498 | ||
12bd6957 | 4499 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4500 | m != NULL; |
4501 | m = m->next, p++) | |
4502 | { | |
4503 | int i; | |
4504 | ||
4505 | for (i = m->count - 1; i >= 0; i--) | |
4506 | if (m->sections[i] == section) | |
4507 | return p; | |
4508 | } | |
4509 | ||
4510 | return NULL; | |
4511 | } | |
4512 | ||
252b5132 RH |
4513 | /* Create a mapping from a set of sections to a program segment. */ |
4514 | ||
217aa764 AM |
4515 | static struct elf_segment_map * |
4516 | make_mapping (bfd *abfd, | |
4517 | asection **sections, | |
4518 | unsigned int from, | |
4519 | unsigned int to, | |
4520 | bfd_boolean phdr) | |
252b5132 RH |
4521 | { |
4522 | struct elf_segment_map *m; | |
4523 | unsigned int i; | |
4524 | asection **hdrpp; | |
986f0783 | 4525 | size_t amt; |
252b5132 | 4526 | |
00bee008 AM |
4527 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4528 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4529 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4530 | if (m == NULL) |
4531 | return NULL; | |
4532 | m->next = NULL; | |
4533 | m->p_type = PT_LOAD; | |
4534 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4535 | m->sections[i - from] = *hdrpp; | |
4536 | m->count = to - from; | |
4537 | ||
4538 | if (from == 0 && phdr) | |
4539 | { | |
4540 | /* Include the headers in the first PT_LOAD segment. */ | |
4541 | m->includes_filehdr = 1; | |
4542 | m->includes_phdrs = 1; | |
4543 | } | |
4544 | ||
4545 | return m; | |
4546 | } | |
4547 | ||
229fcec5 MM |
4548 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4549 | on failure. */ | |
4550 | ||
4551 | struct elf_segment_map * | |
4552 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4553 | { | |
4554 | struct elf_segment_map *m; | |
4555 | ||
a50b1753 | 4556 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4557 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4558 | if (m == NULL) |
4559 | return NULL; | |
4560 | m->next = NULL; | |
4561 | m->p_type = PT_DYNAMIC; | |
4562 | m->count = 1; | |
4563 | m->sections[0] = dynsec; | |
08a40648 | 4564 | |
229fcec5 MM |
4565 | return m; |
4566 | } | |
4567 | ||
8ded5a0f | 4568 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4569 | |
b34976b6 | 4570 | static bfd_boolean |
3dea8fca AM |
4571 | elf_modify_segment_map (bfd *abfd, |
4572 | struct bfd_link_info *info, | |
4573 | bfd_boolean remove_empty_load) | |
252b5132 | 4574 | { |
252e386e | 4575 | struct elf_segment_map **m; |
8ded5a0f | 4576 | const struct elf_backend_data *bed; |
252b5132 | 4577 | |
8ded5a0f AM |
4578 | /* The placement algorithm assumes that non allocated sections are |
4579 | not in PT_LOAD segments. We ensure this here by removing such | |
4580 | sections from the segment map. We also remove excluded | |
252e386e AM |
4581 | sections. Finally, any PT_LOAD segment without sections is |
4582 | removed. */ | |
12bd6957 | 4583 | m = &elf_seg_map (abfd); |
252e386e | 4584 | while (*m) |
8ded5a0f AM |
4585 | { |
4586 | unsigned int i, new_count; | |
252b5132 | 4587 | |
252e386e | 4588 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4589 | { |
252e386e AM |
4590 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4591 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4592 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4593 | { |
252e386e AM |
4594 | (*m)->sections[new_count] = (*m)->sections[i]; |
4595 | new_count++; | |
8ded5a0f AM |
4596 | } |
4597 | } | |
252e386e | 4598 | (*m)->count = new_count; |
252b5132 | 4599 | |
1a9ccd70 NC |
4600 | if (remove_empty_load |
4601 | && (*m)->p_type == PT_LOAD | |
4602 | && (*m)->count == 0 | |
4603 | && !(*m)->includes_phdrs) | |
252e386e AM |
4604 | *m = (*m)->next; |
4605 | else | |
4606 | m = &(*m)->next; | |
8ded5a0f | 4607 | } |
252b5132 | 4608 | |
8ded5a0f AM |
4609 | bed = get_elf_backend_data (abfd); |
4610 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4611 | { |
252e386e | 4612 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4613 | return FALSE; |
252b5132 | 4614 | } |
252b5132 | 4615 | |
8ded5a0f AM |
4616 | return TRUE; |
4617 | } | |
252b5132 | 4618 | |
dbc88fc1 AM |
4619 | #define IS_TBSS(s) \ |
4620 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4621 | ||
8ded5a0f | 4622 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4623 | |
8ded5a0f AM |
4624 | bfd_boolean |
4625 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4626 | { | |
4627 | unsigned int count; | |
4628 | struct elf_segment_map *m; | |
4629 | asection **sections = NULL; | |
4630 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4631 | bfd_boolean no_user_phdrs; |
252b5132 | 4632 | |
12bd6957 | 4633 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4634 | |
4635 | if (info != NULL) | |
4636 | info->user_phdrs = !no_user_phdrs; | |
4637 | ||
3dea8fca | 4638 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4639 | { |
8ded5a0f AM |
4640 | asection *s; |
4641 | unsigned int i; | |
4642 | struct elf_segment_map *mfirst; | |
4643 | struct elf_segment_map **pm; | |
4644 | asection *last_hdr; | |
4645 | bfd_vma last_size; | |
00bee008 | 4646 | unsigned int hdr_index; |
8ded5a0f AM |
4647 | bfd_vma maxpagesize; |
4648 | asection **hdrpp; | |
64029e93 | 4649 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4650 | bfd_boolean writable; |
2888249f | 4651 | bfd_boolean executable; |
446f7ed5 | 4652 | unsigned int tls_count = 0; |
8ded5a0f | 4653 | asection *first_tls = NULL; |
a91e1603 | 4654 | asection *first_mbind = NULL; |
8ded5a0f | 4655 | asection *dynsec, *eh_frame_hdr; |
446f7ed5 | 4656 | size_t amt; |
66631823 CE |
4657 | bfd_vma addr_mask, wrap_to = 0; /* Bytes. */ |
4658 | bfd_size_type phdr_size; /* Octets/bytes. */ | |
502794d4 | 4659 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 4660 | |
8ded5a0f | 4661 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4662 | |
446f7ed5 AM |
4663 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
4664 | sections = (asection **) bfd_malloc (amt); | |
8ded5a0f | 4665 | if (sections == NULL) |
252b5132 | 4666 | goto error_return; |
252b5132 | 4667 | |
8d06853e AM |
4668 | /* Calculate top address, avoiding undefined behaviour of shift |
4669 | left operator when shift count is equal to size of type | |
4670 | being shifted. */ | |
4671 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4672 | addr_mask = (addr_mask << 1) + 1; | |
4673 | ||
8ded5a0f AM |
4674 | i = 0; |
4675 | for (s = abfd->sections; s != NULL; s = s->next) | |
4676 | { | |
4677 | if ((s->flags & SEC_ALLOC) != 0) | |
4678 | { | |
48db3297 AM |
4679 | /* target_index is unused until bfd_elf_final_link |
4680 | starts output of section symbols. Use it to make | |
4681 | qsort stable. */ | |
4682 | s->target_index = i; | |
8ded5a0f AM |
4683 | sections[i] = s; |
4684 | ++i; | |
8d06853e | 4685 | /* A wrapping section potentially clashes with header. */ |
66631823 CE |
4686 | if (((s->lma + s->size / opb) & addr_mask) < (s->lma & addr_mask)) |
4687 | wrap_to = (s->lma + s->size / opb) & addr_mask; | |
8ded5a0f AM |
4688 | } |
4689 | } | |
4690 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4691 | count = i; | |
252b5132 | 4692 | |
8ded5a0f | 4693 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4694 | |
64029e93 AM |
4695 | phdr_size = elf_program_header_size (abfd); |
4696 | if (phdr_size == (bfd_size_type) -1) | |
4697 | phdr_size = get_program_header_size (abfd, info); | |
4698 | phdr_size += bed->s->sizeof_ehdr; | |
502794d4 CE |
4699 | /* phdr_size is compared to LMA values which are in bytes. */ |
4700 | phdr_size /= opb; | |
64029e93 AM |
4701 | maxpagesize = bed->maxpagesize; |
4702 | if (maxpagesize == 0) | |
4703 | maxpagesize = 1; | |
4704 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4705 | if (count != 0 | |
4706 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4707 | >= (phdr_size & (maxpagesize - 1)))) | |
4708 | /* For compatibility with old scripts that may not be using | |
4709 | SIZEOF_HEADERS, add headers when it looks like space has | |
4710 | been left for them. */ | |
4711 | phdr_in_segment = TRUE; | |
252b5132 | 4712 | |
64029e93 | 4713 | /* Build the mapping. */ |
8ded5a0f AM |
4714 | mfirst = NULL; |
4715 | pm = &mfirst; | |
252b5132 | 4716 | |
8ded5a0f AM |
4717 | /* If we have a .interp section, then create a PT_PHDR segment for |
4718 | the program headers and a PT_INTERP segment for the .interp | |
4719 | section. */ | |
4720 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4721 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4722 | { |
4723 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4724 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4725 | if (m == NULL) |
4726 | goto error_return; | |
4727 | m->next = NULL; | |
4728 | m->p_type = PT_PHDR; | |
f882209d | 4729 | m->p_flags = PF_R; |
8ded5a0f AM |
4730 | m->p_flags_valid = 1; |
4731 | m->includes_phdrs = 1; | |
64029e93 | 4732 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4733 | *pm = m; |
4734 | pm = &m->next; | |
252b5132 | 4735 | |
8ded5a0f | 4736 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4737 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4738 | if (m == NULL) |
4739 | goto error_return; | |
4740 | m->next = NULL; | |
4741 | m->p_type = PT_INTERP; | |
4742 | m->count = 1; | |
4743 | m->sections[0] = s; | |
4744 | ||
4745 | *pm = m; | |
4746 | pm = &m->next; | |
252b5132 | 4747 | } |
8ded5a0f AM |
4748 | |
4749 | /* Look through the sections. We put sections in the same program | |
4750 | segment when the start of the second section can be placed within | |
4751 | a few bytes of the end of the first section. */ | |
4752 | last_hdr = NULL; | |
4753 | last_size = 0; | |
00bee008 | 4754 | hdr_index = 0; |
8ded5a0f | 4755 | writable = FALSE; |
2888249f | 4756 | executable = FALSE; |
8ded5a0f AM |
4757 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4758 | if (dynsec != NULL | |
4759 | && (dynsec->flags & SEC_LOAD) == 0) | |
4760 | dynsec = NULL; | |
4761 | ||
64029e93 AM |
4762 | if ((abfd->flags & D_PAGED) == 0) |
4763 | phdr_in_segment = FALSE; | |
4764 | ||
8ded5a0f AM |
4765 | /* Deal with -Ttext or something similar such that the first section |
4766 | is not adjacent to the program headers. This is an | |
4767 | approximation, since at this point we don't know exactly how many | |
4768 | program headers we will need. */ | |
64029e93 | 4769 | if (phdr_in_segment && count > 0) |
252b5132 | 4770 | { |
66631823 | 4771 | bfd_vma phdr_lma; /* Bytes. */ |
64029e93 AM |
4772 | bfd_boolean separate_phdr = FALSE; |
4773 | ||
4774 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4775 | if (info != NULL | |
4776 | && info->separate_code | |
4777 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4778 | { |
64029e93 AM |
4779 | /* If data sections should be separate from code and |
4780 | thus not executable, and the first section is | |
4781 | executable then put the file and program headers in | |
4782 | their own PT_LOAD. */ | |
4783 | separate_phdr = TRUE; | |
4784 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4785 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4786 | { | |
4787 | /* The file and program headers are currently on the | |
4788 | same page as the first section. Put them on the | |
4789 | previous page if we can. */ | |
4790 | if (phdr_lma >= maxpagesize) | |
4791 | phdr_lma -= maxpagesize; | |
4792 | else | |
4793 | separate_phdr = FALSE; | |
4794 | } | |
4795 | } | |
4796 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4797 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4798 | /* If file and program headers would be placed at the end | |
4799 | of memory then it's probably better to omit them. */ | |
4800 | phdr_in_segment = FALSE; | |
4801 | else if (phdr_lma < wrap_to) | |
4802 | /* If a section wraps around to where we'll be placing | |
4803 | file and program headers, then the headers will be | |
4804 | overwritten. */ | |
4805 | phdr_in_segment = FALSE; | |
4806 | else if (separate_phdr) | |
4807 | { | |
4808 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4809 | if (m == NULL) | |
4810 | goto error_return; | |
66631823 | 4811 | m->p_paddr = phdr_lma * opb; |
64029e93 AM |
4812 | m->p_vaddr_offset |
4813 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4814 | m->p_paddr_valid = 1; | |
4815 | *pm = m; | |
4816 | pm = &m->next; | |
4817 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4818 | } |
252b5132 RH |
4819 | } |
4820 | ||
8ded5a0f | 4821 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4822 | { |
8ded5a0f AM |
4823 | asection *hdr; |
4824 | bfd_boolean new_segment; | |
4825 | ||
4826 | hdr = *hdrpp; | |
4827 | ||
4828 | /* See if this section and the last one will fit in the same | |
4829 | segment. */ | |
4830 | ||
4831 | if (last_hdr == NULL) | |
4832 | { | |
4833 | /* If we don't have a segment yet, then we don't need a new | |
4834 | one (we build the last one after this loop). */ | |
4835 | new_segment = FALSE; | |
4836 | } | |
4837 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4838 | { | |
4839 | /* If this section has a different relation between the | |
4840 | virtual address and the load address, then we need a new | |
4841 | segment. */ | |
4842 | new_segment = TRUE; | |
4843 | } | |
b5599592 AM |
4844 | else if (hdr->lma < last_hdr->lma + last_size |
4845 | || last_hdr->lma + last_size < last_hdr->lma) | |
4846 | { | |
4847 | /* If this section has a load address that makes it overlap | |
4848 | the previous section, then we need a new segment. */ | |
4849 | new_segment = TRUE; | |
4850 | } | |
76cb3a89 AM |
4851 | else if ((abfd->flags & D_PAGED) != 0 |
4852 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4853 | == (hdr->lma & -maxpagesize))) | |
4854 | { | |
4855 | /* If we are demand paged then we can't map two disk | |
4856 | pages onto the same memory page. */ | |
4857 | new_segment = FALSE; | |
4858 | } | |
39948a60 NC |
4859 | /* In the next test we have to be careful when last_hdr->lma is close |
4860 | to the end of the address space. If the aligned address wraps | |
4861 | around to the start of the address space, then there are no more | |
4862 | pages left in memory and it is OK to assume that the current | |
4863 | section can be included in the current segment. */ | |
76cb3a89 AM |
4864 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4865 | + maxpagesize > last_hdr->lma) | |
4866 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4867 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4868 | { |
4869 | /* If putting this section in this segment would force us to | |
4870 | skip a page in the segment, then we need a new segment. */ | |
4871 | new_segment = TRUE; | |
4872 | } | |
4873 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4874 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4875 | { |
e5654c0f AM |
4876 | /* We don't want to put a loaded section after a |
4877 | nonloaded (ie. bss style) section in the same segment | |
4878 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4879 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4880 | new_segment = TRUE; |
4881 | } | |
4882 | else if ((abfd->flags & D_PAGED) == 0) | |
4883 | { | |
4884 | /* If the file is not demand paged, which means that we | |
4885 | don't require the sections to be correctly aligned in the | |
4886 | file, then there is no other reason for a new segment. */ | |
4887 | new_segment = FALSE; | |
4888 | } | |
2888249f L |
4889 | else if (info != NULL |
4890 | && info->separate_code | |
4891 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4892 | { | |
4893 | new_segment = TRUE; | |
4894 | } | |
8ded5a0f | 4895 | else if (! writable |
76cb3a89 | 4896 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4897 | { |
4898 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4899 | segment. */ |
8ded5a0f AM |
4900 | new_segment = TRUE; |
4901 | } | |
4902 | else | |
4903 | { | |
4904 | /* Otherwise, we can use the same segment. */ | |
4905 | new_segment = FALSE; | |
4906 | } | |
4907 | ||
2889e75b | 4908 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4909 | if (last_hdr != NULL |
4910 | && info != NULL | |
4911 | && info->callbacks->override_segment_assignment != NULL) | |
4912 | new_segment | |
4913 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4914 | last_hdr, | |
4915 | new_segment); | |
2889e75b | 4916 | |
8ded5a0f AM |
4917 | if (! new_segment) |
4918 | { | |
4919 | if ((hdr->flags & SEC_READONLY) == 0) | |
4920 | writable = TRUE; | |
2888249f L |
4921 | if ((hdr->flags & SEC_CODE) != 0) |
4922 | executable = TRUE; | |
8ded5a0f AM |
4923 | last_hdr = hdr; |
4924 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4925 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
8ded5a0f AM |
4926 | continue; |
4927 | } | |
4928 | ||
4929 | /* We need a new program segment. We must create a new program | |
00bee008 | 4930 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4931 | |
00bee008 | 4932 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4933 | if (m == NULL) |
4934 | goto error_return; | |
4935 | ||
4936 | *pm = m; | |
4937 | pm = &m->next; | |
4938 | ||
252b5132 | 4939 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4940 | writable = TRUE; |
8ded5a0f AM |
4941 | else |
4942 | writable = FALSE; | |
4943 | ||
2888249f L |
4944 | if ((hdr->flags & SEC_CODE) == 0) |
4945 | executable = FALSE; | |
4946 | else | |
4947 | executable = TRUE; | |
4948 | ||
baaff79e JJ |
4949 | last_hdr = hdr; |
4950 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4951 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
00bee008 | 4952 | hdr_index = i; |
8ded5a0f | 4953 | phdr_in_segment = FALSE; |
252b5132 RH |
4954 | } |
4955 | ||
86b2281f AM |
4956 | /* Create a final PT_LOAD program segment, but not if it's just |
4957 | for .tbss. */ | |
4958 | if (last_hdr != NULL | |
00bee008 | 4959 | && (i - hdr_index != 1 |
dbc88fc1 | 4960 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4961 | { |
00bee008 | 4962 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4963 | if (m == NULL) |
4964 | goto error_return; | |
252b5132 | 4965 | |
8ded5a0f AM |
4966 | *pm = m; |
4967 | pm = &m->next; | |
4968 | } | |
252b5132 | 4969 | |
8ded5a0f AM |
4970 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4971 | if (dynsec != NULL) | |
4972 | { | |
4973 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4974 | if (m == NULL) | |
4975 | goto error_return; | |
4976 | *pm = m; | |
4977 | pm = &m->next; | |
4978 | } | |
252b5132 | 4979 | |
23e463ed | 4980 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
4981 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
4982 | because if we link together nonloadable .note sections and | |
4983 | loadable .note sections, we will generate two .note sections | |
23e463ed | 4984 | in the output file. */ |
8ded5a0f AM |
4985 | for (s = abfd->sections; s != NULL; s = s->next) |
4986 | { | |
4987 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 4988 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4989 | { |
1c5265b5 | 4990 | asection *s2; |
23e463ed | 4991 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
4992 | |
4993 | count = 1; | |
23e463ed L |
4994 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
4995 | { | |
4996 | if (s2->next->alignment_power == alignment_power | |
4997 | && (s2->next->flags & SEC_LOAD) != 0 | |
4998 | && elf_section_type (s2->next) == SHT_NOTE | |
66631823 | 4999 | && align_power (s2->lma + s2->size / opb, |
23e463ed L |
5000 | alignment_power) |
5001 | == s2->next->lma) | |
5002 | count++; | |
5003 | else | |
5004 | break; | |
5005 | } | |
00bee008 AM |
5006 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5007 | amt += count * sizeof (asection *); | |
a50b1753 | 5008 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5009 | if (m == NULL) |
5010 | goto error_return; | |
5011 | m->next = NULL; | |
5012 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5013 | m->count = count; |
5014 | while (count > 1) | |
5015 | { | |
5016 | m->sections[m->count - count--] = s; | |
5017 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5018 | s = s->next; | |
5019 | } | |
5020 | m->sections[m->count - 1] = s; | |
5021 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5022 | *pm = m; |
5023 | pm = &m->next; | |
5024 | } | |
5025 | if (s->flags & SEC_THREAD_LOCAL) | |
5026 | { | |
5027 | if (! tls_count) | |
5028 | first_tls = s; | |
5029 | tls_count++; | |
5030 | } | |
a91e1603 L |
5031 | if (first_mbind == NULL |
5032 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5033 | first_mbind = s; | |
8ded5a0f | 5034 | } |
252b5132 | 5035 | |
8ded5a0f AM |
5036 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5037 | if (tls_count > 0) | |
5038 | { | |
00bee008 AM |
5039 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5040 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5041 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5042 | if (m == NULL) |
5043 | goto error_return; | |
5044 | m->next = NULL; | |
5045 | m->p_type = PT_TLS; | |
5046 | m->count = tls_count; | |
5047 | /* Mandated PF_R. */ | |
5048 | m->p_flags = PF_R; | |
5049 | m->p_flags_valid = 1; | |
d923cae0 | 5050 | s = first_tls; |
446f7ed5 | 5051 | for (i = 0; i < tls_count; ++i) |
8ded5a0f | 5052 | { |
d923cae0 L |
5053 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5054 | { | |
5055 | _bfd_error_handler | |
871b3ab2 | 5056 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5057 | s = first_tls; |
5058 | i = 0; | |
446f7ed5 | 5059 | while (i < tls_count) |
d923cae0 L |
5060 | { |
5061 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5062 | { | |
871b3ab2 | 5063 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5064 | i++; |
5065 | } | |
5066 | else | |
871b3ab2 | 5067 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5068 | s = s->next; |
5069 | } | |
5070 | bfd_set_error (bfd_error_bad_value); | |
5071 | goto error_return; | |
5072 | } | |
5073 | m->sections[i] = s; | |
5074 | s = s->next; | |
8ded5a0f | 5075 | } |
252b5132 | 5076 | |
8ded5a0f AM |
5077 | *pm = m; |
5078 | pm = &m->next; | |
5079 | } | |
252b5132 | 5080 | |
df3a023b AM |
5081 | if (first_mbind |
5082 | && (abfd->flags & D_PAGED) != 0 | |
5083 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5084 | for (s = first_mbind; s != NULL; s = s->next) |
5085 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5086 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5087 | { |
5088 | /* Mandated PF_R. */ | |
5089 | unsigned long p_flags = PF_R; | |
5090 | if ((s->flags & SEC_READONLY) == 0) | |
5091 | p_flags |= PF_W; | |
5092 | if ((s->flags & SEC_CODE) != 0) | |
5093 | p_flags |= PF_X; | |
5094 | ||
5095 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5096 | m = bfd_zalloc (abfd, amt); | |
5097 | if (m == NULL) | |
5098 | goto error_return; | |
5099 | m->next = NULL; | |
5100 | m->p_type = (PT_GNU_MBIND_LO | |
5101 | + elf_section_data (s)->this_hdr.sh_info); | |
5102 | m->count = 1; | |
5103 | m->p_flags_valid = 1; | |
5104 | m->sections[0] = s; | |
5105 | m->p_flags = p_flags; | |
5106 | ||
5107 | *pm = m; | |
5108 | pm = &m->next; | |
5109 | } | |
5110 | ||
0a59decb L |
5111 | s = bfd_get_section_by_name (abfd, |
5112 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5113 | if (s != NULL && s->size != 0) | |
5114 | { | |
5115 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5116 | m = bfd_zalloc (abfd, amt); | |
5117 | if (m == NULL) | |
5118 | goto error_return; | |
5119 | m->next = NULL; | |
5120 | m->p_type = PT_GNU_PROPERTY; | |
5121 | m->count = 1; | |
5122 | m->p_flags_valid = 1; | |
5123 | m->sections[0] = s; | |
5124 | m->p_flags = PF_R; | |
5125 | *pm = m; | |
5126 | pm = &m->next; | |
5127 | } | |
5128 | ||
8ded5a0f AM |
5129 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5130 | segment. */ | |
12bd6957 | 5131 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5132 | if (eh_frame_hdr != NULL |
5133 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5134 | { |
dc810e39 | 5135 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5136 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5137 | if (m == NULL) |
5138 | goto error_return; | |
5139 | m->next = NULL; | |
8ded5a0f | 5140 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5141 | m->count = 1; |
8ded5a0f | 5142 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5143 | |
5144 | *pm = m; | |
5145 | pm = &m->next; | |
5146 | } | |
13ae64f3 | 5147 | |
12bd6957 | 5148 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5149 | { |
8ded5a0f | 5150 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5151 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5152 | if (m == NULL) |
5153 | goto error_return; | |
5154 | m->next = NULL; | |
2b05f1b7 | 5155 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5156 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5157 | m->p_align = bed->stack_align; |
8ded5a0f | 5158 | m->p_flags_valid = 1; |
04c3a755 NS |
5159 | m->p_align_valid = m->p_align != 0; |
5160 | if (info->stacksize > 0) | |
5161 | { | |
5162 | m->p_size = info->stacksize; | |
5163 | m->p_size_valid = 1; | |
5164 | } | |
252b5132 | 5165 | |
8ded5a0f AM |
5166 | *pm = m; |
5167 | pm = &m->next; | |
5168 | } | |
65765700 | 5169 | |
ceae84aa | 5170 | if (info != NULL && info->relro) |
8ded5a0f | 5171 | { |
f210dcff L |
5172 | for (m = mfirst; m != NULL; m = m->next) |
5173 | { | |
3832a4d8 AM |
5174 | if (m->p_type == PT_LOAD |
5175 | && m->count != 0 | |
5176 | && m->sections[0]->vma >= info->relro_start | |
5177 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5178 | { |
3832a4d8 AM |
5179 | i = m->count; |
5180 | while (--i != (unsigned) -1) | |
ec2e748a NC |
5181 | { |
5182 | if (m->sections[i]->size > 0 | |
5183 | && (m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5184 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5185 | break; | |
5186 | } | |
3832a4d8 | 5187 | |
43a8475c | 5188 | if (i != (unsigned) -1) |
f210dcff L |
5189 | break; |
5190 | } | |
be01b344 | 5191 | } |
f210dcff L |
5192 | |
5193 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5194 | if (m != NULL) | |
5195 | { | |
5196 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5197 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5198 | if (m == NULL) |
5199 | goto error_return; | |
5200 | m->next = NULL; | |
5201 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5202 | *pm = m; |
5203 | pm = &m->next; | |
5204 | } | |
8ded5a0f | 5205 | } |
9ee5e499 | 5206 | |
8ded5a0f | 5207 | free (sections); |
12bd6957 | 5208 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5209 | } |
5210 | ||
3dea8fca | 5211 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5212 | return FALSE; |
8c37241b | 5213 | |
12bd6957 | 5214 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5215 | ++count; |
12bd6957 | 5216 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5217 | |
b34976b6 | 5218 | return TRUE; |
252b5132 RH |
5219 | |
5220 | error_return: | |
c9594989 | 5221 | free (sections); |
b34976b6 | 5222 | return FALSE; |
252b5132 RH |
5223 | } |
5224 | ||
5225 | /* Sort sections by address. */ | |
5226 | ||
5227 | static int | |
217aa764 | 5228 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5229 | { |
5230 | const asection *sec1 = *(const asection **) arg1; | |
5231 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5232 | bfd_size_type size1, size2; |
252b5132 RH |
5233 | |
5234 | /* Sort by LMA first, since this is the address used to | |
5235 | place the section into a segment. */ | |
5236 | if (sec1->lma < sec2->lma) | |
5237 | return -1; | |
5238 | else if (sec1->lma > sec2->lma) | |
5239 | return 1; | |
5240 | ||
5241 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5242 | the same, and this will do nothing. */ | |
5243 | if (sec1->vma < sec2->vma) | |
5244 | return -1; | |
5245 | else if (sec1->vma > sec2->vma) | |
5246 | return 1; | |
5247 | ||
5248 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5249 | ||
07c6e936 | 5250 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5251 | |
5252 | if (TOEND (sec1)) | |
5253 | { | |
48db3297 | 5254 | if (!TOEND (sec2)) |
252b5132 RH |
5255 | return 1; |
5256 | } | |
00a7cdc5 | 5257 | else if (TOEND (sec2)) |
252b5132 RH |
5258 | return -1; |
5259 | ||
5260 | #undef TOEND | |
5261 | ||
00a7cdc5 NC |
5262 | /* Sort by size, to put zero sized sections |
5263 | before others at the same address. */ | |
252b5132 | 5264 | |
eea6121a AM |
5265 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5266 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5267 | |
5268 | if (size1 < size2) | |
252b5132 | 5269 | return -1; |
eecdbe52 | 5270 | if (size1 > size2) |
252b5132 RH |
5271 | return 1; |
5272 | ||
5273 | return sec1->target_index - sec2->target_index; | |
5274 | } | |
5275 | ||
30fe1832 AM |
5276 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5277 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5278 | ||
5279 | static int | |
5280 | elf_sort_segments (const void *arg1, const void *arg2) | |
5281 | { | |
5282 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5283 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5284 | ||
5285 | if (m1->p_type != m2->p_type) | |
5286 | { | |
5287 | if (m1->p_type == PT_NULL) | |
5288 | return 1; | |
5289 | if (m2->p_type == PT_NULL) | |
5290 | return -1; | |
5291 | return m1->p_type < m2->p_type ? -1 : 1; | |
5292 | } | |
5293 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5294 | return m1->includes_filehdr ? -1 : 1; | |
5295 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5296 | return m1->no_sort_lma ? -1 : 1; | |
5297 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5298 | { | |
4b3ecb3b | 5299 | bfd_vma lma1, lma2; /* Octets. */ |
30fe1832 AM |
5300 | lma1 = 0; |
5301 | if (m1->p_paddr_valid) | |
4b3ecb3b | 5302 | lma1 = m1->p_paddr; |
30fe1832 | 5303 | else if (m1->count != 0) |
4b3ecb3b AM |
5304 | { |
5305 | unsigned int opb = bfd_octets_per_byte (m1->sections[0]->owner, | |
5306 | m1->sections[0]); | |
5307 | lma1 = (m1->sections[0]->lma + m1->p_vaddr_offset) * opb; | |
5308 | } | |
30fe1832 AM |
5309 | lma2 = 0; |
5310 | if (m2->p_paddr_valid) | |
4b3ecb3b | 5311 | lma2 = m2->p_paddr; |
30fe1832 | 5312 | else if (m2->count != 0) |
4b3ecb3b AM |
5313 | { |
5314 | unsigned int opb = bfd_octets_per_byte (m2->sections[0]->owner, | |
5315 | m2->sections[0]); | |
5316 | lma2 = (m2->sections[0]->lma + m2->p_vaddr_offset) * opb; | |
5317 | } | |
30fe1832 AM |
5318 | if (lma1 != lma2) |
5319 | return lma1 < lma2 ? -1 : 1; | |
5320 | } | |
5321 | if (m1->idx != m2->idx) | |
5322 | return m1->idx < m2->idx ? -1 : 1; | |
5323 | return 0; | |
5324 | } | |
5325 | ||
340b6d91 AC |
5326 | /* Ian Lance Taylor writes: |
5327 | ||
5328 | We shouldn't be using % with a negative signed number. That's just | |
5329 | not good. We have to make sure either that the number is not | |
5330 | negative, or that the number has an unsigned type. When the types | |
5331 | are all the same size they wind up as unsigned. When file_ptr is a | |
5332 | larger signed type, the arithmetic winds up as signed long long, | |
5333 | which is wrong. | |
5334 | ||
5335 | What we're trying to say here is something like ``increase OFF by | |
5336 | the least amount that will cause it to be equal to the VMA modulo | |
5337 | the page size.'' */ | |
5338 | /* In other words, something like: | |
5339 | ||
5340 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5341 | off_offset = off % bed->maxpagesize; | |
5342 | if (vma_offset < off_offset) | |
5343 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5344 | else | |
5345 | adjustment = vma_offset - off_offset; | |
08a40648 | 5346 | |
de194d85 | 5347 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5348 | |
5349 | static file_ptr | |
5350 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5351 | { | |
dc9155b2 NC |
5352 | /* PR binutils/16199: Handle an alignment of zero. */ |
5353 | if (maxpagesize == 0) | |
5354 | maxpagesize = 1; | |
340b6d91 AC |
5355 | return ((vma - off) % maxpagesize); |
5356 | } | |
5357 | ||
6d33f217 L |
5358 | static void |
5359 | print_segment_map (const struct elf_segment_map *m) | |
5360 | { | |
5361 | unsigned int j; | |
5362 | const char *pt = get_segment_type (m->p_type); | |
5363 | char buf[32]; | |
5364 | ||
5365 | if (pt == NULL) | |
5366 | { | |
5367 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5368 | sprintf (buf, "LOPROC+%7.7x", | |
5369 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5370 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5371 | sprintf (buf, "LOOS+%7.7x", | |
5372 | (unsigned int) (m->p_type - PT_LOOS)); | |
5373 | else | |
5374 | snprintf (buf, sizeof (buf), "%8.8x", | |
5375 | (unsigned int) m->p_type); | |
5376 | pt = buf; | |
5377 | } | |
4a97a0e5 | 5378 | fflush (stdout); |
6d33f217 L |
5379 | fprintf (stderr, "%s:", pt); |
5380 | for (j = 0; j < m->count; j++) | |
5381 | fprintf (stderr, " %s", m->sections [j]->name); | |
5382 | putc ('\n',stderr); | |
4a97a0e5 | 5383 | fflush (stderr); |
6d33f217 L |
5384 | } |
5385 | ||
32812159 AM |
5386 | static bfd_boolean |
5387 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5388 | { | |
5389 | void *buf; | |
5390 | bfd_boolean ret; | |
5391 | ||
5392 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5393 | return FALSE; | |
5394 | buf = bfd_zmalloc (len); | |
5395 | if (buf == NULL) | |
5396 | return FALSE; | |
5397 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5398 | free (buf); | |
5399 | return ret; | |
5400 | } | |
5401 | ||
252b5132 RH |
5402 | /* Assign file positions to the sections based on the mapping from |
5403 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5404 | the file header. */ |
252b5132 | 5405 | |
b34976b6 | 5406 | static bfd_boolean |
f3520d2f AM |
5407 | assign_file_positions_for_load_sections (bfd *abfd, |
5408 | struct bfd_link_info *link_info) | |
252b5132 RH |
5409 | { |
5410 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5411 | struct elf_segment_map *m; |
30fe1832 | 5412 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5413 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5414 | Elf_Internal_Phdr *p; |
502794d4 | 5415 | file_ptr off; /* Octets. */ |
3f570048 | 5416 | bfd_size_type maxpagesize; |
30fe1832 | 5417 | unsigned int alloc, actual; |
0920dee7 | 5418 | unsigned int i, j; |
30fe1832 | 5419 | struct elf_segment_map **sorted_seg_map; |
502794d4 | 5420 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 5421 | |
e36284ab | 5422 | if (link_info == NULL |
ceae84aa | 5423 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5424 | return FALSE; |
252b5132 | 5425 | |
8ded5a0f | 5426 | alloc = 0; |
12bd6957 | 5427 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5428 | m->idx = alloc++; |
252b5132 | 5429 | |
82f2dbf7 NC |
5430 | if (alloc) |
5431 | { | |
5432 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5433 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5434 | } | |
5435 | else | |
5436 | { | |
5437 | /* PR binutils/12467. */ | |
5438 | elf_elfheader (abfd)->e_phoff = 0; | |
5439 | elf_elfheader (abfd)->e_phentsize = 0; | |
5440 | } | |
d324f6d6 | 5441 | |
8ded5a0f | 5442 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5443 | |
12bd6957 | 5444 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5445 | { |
5446 | actual = alloc; | |
5447 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5448 | } | |
8ded5a0f | 5449 | else |
30fe1832 AM |
5450 | { |
5451 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5452 | BFD_ASSERT (elf_program_header_size (abfd) | |
5453 | == actual * bed->s->sizeof_phdr); | |
5454 | BFD_ASSERT (actual >= alloc); | |
5455 | } | |
252b5132 RH |
5456 | |
5457 | if (alloc == 0) | |
f3520d2f | 5458 | { |
12bd6957 | 5459 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5460 | return TRUE; |
f3520d2f | 5461 | } |
252b5132 | 5462 | |
12bd6957 | 5463 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5464 | see assign_file_positions_except_relocs, so make sure we have |
5465 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5466 | The variable alloc contains the computed need, while |
5467 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5468 | layout. |
5469 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5470 | where the layout is forced to according to a larger size in the | |
5471 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5472 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5473 | + alloc * sizeof (*sorted_seg_map))); | |
5474 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5475 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5476 | if (phdrs == NULL) |
b34976b6 | 5477 | return FALSE; |
252b5132 | 5478 | |
30fe1832 | 5479 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5480 | { |
30fe1832 | 5481 | sorted_seg_map[j] = m; |
252b5132 | 5482 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5483 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5484 | not be done to the PT_NOTE section of a corefile, which may |
5485 | contain several pseudo-sections artificially created by bfd. | |
5486 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5487 | if (m->count > 1 |
5488 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5489 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5490 | { |
5491 | for (i = 0; i < m->count; i++) | |
5492 | m->sections[i]->target_index = i; | |
5493 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5494 | elf_sort_sections); | |
5495 | } | |
30fe1832 AM |
5496 | } |
5497 | if (alloc > 1) | |
5498 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5499 | elf_sort_segments); | |
5500 | ||
5501 | maxpagesize = 1; | |
5502 | if ((abfd->flags & D_PAGED) != 0) | |
5503 | maxpagesize = bed->maxpagesize; | |
5504 | ||
5505 | /* Sections must map to file offsets past the ELF file header. */ | |
5506 | off = bed->s->sizeof_ehdr; | |
5507 | /* And if one of the PT_LOAD headers doesn't include the program | |
5508 | headers then we'll be mapping program headers in the usual | |
5509 | position after the ELF file header. */ | |
5510 | phdr_load_seg = NULL; | |
5511 | for (j = 0; j < alloc; j++) | |
5512 | { | |
5513 | m = sorted_seg_map[j]; | |
5514 | if (m->p_type != PT_LOAD) | |
5515 | break; | |
5516 | if (m->includes_phdrs) | |
5517 | { | |
5518 | phdr_load_seg = m; | |
5519 | break; | |
5520 | } | |
5521 | } | |
5522 | if (phdr_load_seg == NULL) | |
5523 | off += actual * bed->s->sizeof_phdr; | |
5524 | ||
5525 | for (j = 0; j < alloc; j++) | |
5526 | { | |
5527 | asection **secpp; | |
502794d4 | 5528 | bfd_vma off_adjust; /* Octets. */ |
30fe1832 | 5529 | bfd_boolean no_contents; |
252b5132 | 5530 | |
b301b248 AM |
5531 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5532 | number of sections with contents contributing to both p_filesz | |
5533 | and p_memsz, followed by a number of sections with no contents | |
5534 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5535 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5536 | m = sorted_seg_map[j]; |
5537 | p = phdrs + m->idx; | |
252b5132 | 5538 | p->p_type = m->p_type; |
28a7f3e7 | 5539 | p->p_flags = m->p_flags; |
252b5132 | 5540 | |
3f570048 | 5541 | if (m->count == 0) |
502794d4 | 5542 | p->p_vaddr = m->p_vaddr_offset * opb; |
3f570048 | 5543 | else |
502794d4 | 5544 | p->p_vaddr = (m->sections[0]->vma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5545 | |
5546 | if (m->p_paddr_valid) | |
5547 | p->p_paddr = m->p_paddr; | |
5548 | else if (m->count == 0) | |
5549 | p->p_paddr = 0; | |
5550 | else | |
502794d4 | 5551 | p->p_paddr = (m->sections[0]->lma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5552 | |
5553 | if (p->p_type == PT_LOAD | |
5554 | && (abfd->flags & D_PAGED) != 0) | |
5555 | { | |
5556 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5557 | the maximum page size. When copying an executable with | |
5558 | objcopy, we set m->p_align from the input file. Use this | |
5559 | value for maxpagesize rather than bed->maxpagesize, which | |
5560 | may be different. Note that we use maxpagesize for PT_TLS | |
5561 | segment alignment later in this function, so we are relying | |
5562 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5563 | segment. */ | |
5564 | if (m->p_align_valid) | |
5565 | maxpagesize = m->p_align; | |
5566 | ||
5567 | p->p_align = maxpagesize; | |
5568 | } | |
3271a814 NS |
5569 | else if (m->p_align_valid) |
5570 | p->p_align = m->p_align; | |
e970b90a DJ |
5571 | else if (m->count == 0) |
5572 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5573 | |
5574 | if (m == phdr_load_seg) | |
5575 | { | |
5576 | if (!m->includes_filehdr) | |
5577 | p->p_offset = off; | |
5578 | off += actual * bed->s->sizeof_phdr; | |
5579 | } | |
3f570048 | 5580 | |
bf988460 AM |
5581 | no_contents = FALSE; |
5582 | off_adjust = 0; | |
252b5132 | 5583 | if (p->p_type == PT_LOAD |
b301b248 | 5584 | && m->count > 0) |
252b5132 | 5585 | { |
66631823 | 5586 | bfd_size_type align; /* Bytes. */ |
a49e53ed | 5587 | unsigned int align_power = 0; |
b301b248 | 5588 | |
3271a814 NS |
5589 | if (m->p_align_valid) |
5590 | align = p->p_align; | |
5591 | else | |
252b5132 | 5592 | { |
3271a814 NS |
5593 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5594 | { | |
5595 | unsigned int secalign; | |
08a40648 | 5596 | |
fd361982 | 5597 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5598 | if (secalign > align_power) |
5599 | align_power = secalign; | |
5600 | } | |
5601 | align = (bfd_size_type) 1 << align_power; | |
5602 | if (align < maxpagesize) | |
5603 | align = maxpagesize; | |
b301b248 | 5604 | } |
252b5132 | 5605 | |
02bf8d82 AM |
5606 | for (i = 0; i < m->count; i++) |
5607 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5608 | /* If we aren't making room for this section, then | |
5609 | it must be SHT_NOBITS regardless of what we've | |
5610 | set via struct bfd_elf_special_section. */ | |
5611 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5612 | ||
bf988460 | 5613 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5614 | sections. */ |
5615 | no_contents = TRUE; | |
5616 | for (i = 0; i < m->count; i++) | |
5617 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5618 | { | |
5619 | no_contents = FALSE; | |
5620 | break; | |
5621 | } | |
bf988460 | 5622 | |
66631823 | 5623 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align * opb); |
a8c75b76 AM |
5624 | |
5625 | /* Broken hardware and/or kernel require that files do not | |
5626 | map the same page with different permissions on some hppa | |
5627 | processors. */ | |
30fe1832 AM |
5628 | if (j != 0 |
5629 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5630 | && bed->no_page_alias |
5631 | && (off & (maxpagesize - 1)) != 0 | |
502794d4 CE |
5632 | && ((off & -maxpagesize) |
5633 | == ((off + off_adjust) & -maxpagesize))) | |
a8c75b76 | 5634 | off_adjust += maxpagesize; |
bf988460 AM |
5635 | off += off_adjust; |
5636 | if (no_contents) | |
5637 | { | |
5638 | /* We shouldn't need to align the segment on disk since | |
5639 | the segment doesn't need file space, but the gABI | |
5640 | arguably requires the alignment and glibc ld.so | |
5641 | checks it. So to comply with the alignment | |
5642 | requirement but not waste file space, we adjust | |
5643 | p_offset for just this segment. (OFF_ADJUST is | |
5644 | subtracted from OFF later.) This may put p_offset | |
5645 | past the end of file, but that shouldn't matter. */ | |
5646 | } | |
5647 | else | |
5648 | off_adjust = 0; | |
252b5132 | 5649 | } |
b1a6d0b1 NC |
5650 | /* Make sure the .dynamic section is the first section in the |
5651 | PT_DYNAMIC segment. */ | |
5652 | else if (p->p_type == PT_DYNAMIC | |
5653 | && m->count > 1 | |
5654 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5655 | { | |
5656 | _bfd_error_handler | |
871b3ab2 | 5657 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5658 | " is not the .dynamic section"), |
b301b248 | 5659 | abfd); |
b1a6d0b1 NC |
5660 | bfd_set_error (bfd_error_bad_value); |
5661 | return FALSE; | |
5662 | } | |
3f001e84 JK |
5663 | /* Set the note section type to SHT_NOTE. */ |
5664 | else if (p->p_type == PT_NOTE) | |
5665 | for (i = 0; i < m->count; i++) | |
5666 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5667 | |
252b5132 RH |
5668 | if (m->includes_filehdr) |
5669 | { | |
bf988460 | 5670 | if (!m->p_flags_valid) |
252b5132 | 5671 | p->p_flags |= PF_R; |
252b5132 RH |
5672 | p->p_filesz = bed->s->sizeof_ehdr; |
5673 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5674 | if (p->p_type == PT_LOAD) |
252b5132 | 5675 | { |
30fe1832 | 5676 | if (m->count > 0) |
252b5132 | 5677 | { |
30fe1832 AM |
5678 | if (p->p_vaddr < (bfd_vma) off |
5679 | || (!m->p_paddr_valid | |
5680 | && p->p_paddr < (bfd_vma) off)) | |
5681 | { | |
5682 | _bfd_error_handler | |
5683 | (_("%pB: not enough room for program headers," | |
5684 | " try linking with -N"), | |
5685 | abfd); | |
5686 | bfd_set_error (bfd_error_bad_value); | |
5687 | return FALSE; | |
5688 | } | |
5689 | p->p_vaddr -= off; | |
5690 | if (!m->p_paddr_valid) | |
5691 | p->p_paddr -= off; | |
252b5132 | 5692 | } |
30fe1832 AM |
5693 | } |
5694 | else if (sorted_seg_map[0]->includes_filehdr) | |
5695 | { | |
5696 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5697 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5698 | if (!m->p_paddr_valid) |
30fe1832 | 5699 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5700 | } |
252b5132 RH |
5701 | } |
5702 | ||
5703 | if (m->includes_phdrs) | |
5704 | { | |
bf988460 | 5705 | if (!m->p_flags_valid) |
252b5132 | 5706 | p->p_flags |= PF_R; |
30fe1832 AM |
5707 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5708 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5709 | if (!m->includes_filehdr) |
252b5132 | 5710 | { |
30fe1832 | 5711 | if (p->p_type == PT_LOAD) |
252b5132 | 5712 | { |
30fe1832 AM |
5713 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5714 | if (m->count > 0) | |
5715 | { | |
5716 | p->p_vaddr -= off - p->p_offset; | |
5717 | if (!m->p_paddr_valid) | |
5718 | p->p_paddr -= off - p->p_offset; | |
5719 | } | |
5720 | } | |
5721 | else if (phdr_load_seg != NULL) | |
5722 | { | |
5723 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
502794d4 | 5724 | bfd_vma phdr_off = 0; /* Octets. */ |
30fe1832 AM |
5725 | if (phdr_load_seg->includes_filehdr) |
5726 | phdr_off = bed->s->sizeof_ehdr; | |
5727 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5728 | if (!m->p_paddr_valid) |
30fe1832 AM |
5729 | p->p_paddr = phdr->p_paddr + phdr_off; |
5730 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5731 | } |
30fe1832 AM |
5732 | else |
5733 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5734 | } |
252b5132 RH |
5735 | } |
5736 | ||
5737 | if (p->p_type == PT_LOAD | |
5738 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5739 | { | |
bf988460 | 5740 | if (!m->includes_filehdr && !m->includes_phdrs) |
0bc3450e AM |
5741 | { |
5742 | p->p_offset = off; | |
5743 | if (no_contents) | |
67641dd3 AM |
5744 | { |
5745 | /* Put meaningless p_offset for PT_LOAD segments | |
5746 | without file contents somewhere within the first | |
5747 | page, in an attempt to not point past EOF. */ | |
5748 | bfd_size_type align = maxpagesize; | |
5749 | if (align < p->p_align) | |
5750 | align = p->p_align; | |
5751 | if (align < 1) | |
5752 | align = 1; | |
5753 | p->p_offset = off % align; | |
5754 | } | |
0bc3450e | 5755 | } |
252b5132 RH |
5756 | else |
5757 | { | |
502794d4 | 5758 | file_ptr adjust; /* Octets. */ |
252b5132 RH |
5759 | |
5760 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5761 | if (!no_contents) |
5762 | p->p_filesz += adjust; | |
252b5132 RH |
5763 | p->p_memsz += adjust; |
5764 | } | |
5765 | } | |
5766 | ||
1ea63fd2 AM |
5767 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5768 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5769 | core files, for sections in PT_NOTE segments. | |
5770 | assign_file_positions_for_non_load_sections will set filepos | |
5771 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5772 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5773 | { | |
5774 | asection *sec; | |
252b5132 | 5775 | bfd_size_type align; |
627b32bc | 5776 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5777 | |
5778 | sec = *secpp; | |
02bf8d82 | 5779 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5780 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5781 | |
88967714 AM |
5782 | if ((p->p_type == PT_LOAD |
5783 | || p->p_type == PT_TLS) | |
5784 | && (this_hdr->sh_type != SHT_NOBITS | |
5785 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5786 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5787 | || p->p_type == PT_TLS)))) | |
252b5132 | 5788 | { |
502794d4 CE |
5789 | bfd_vma p_start = p->p_paddr; /* Octets. */ |
5790 | bfd_vma p_end = p_start + p->p_memsz; /* Octets. */ | |
5791 | bfd_vma s_start = sec->lma * opb; /* Octets. */ | |
5792 | bfd_vma adjust = s_start - p_end; /* Octets. */ | |
252b5132 | 5793 | |
a2d1e028 L |
5794 | if (adjust != 0 |
5795 | && (s_start < p_end | |
5796 | || p_end < p_start)) | |
252b5132 | 5797 | { |
4eca0228 | 5798 | _bfd_error_handler |
695344c0 | 5799 | /* xgettext:c-format */ |
2dcf00ce | 5800 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
502794d4 CE |
5801 | abfd, sec, (uint64_t) s_start / opb, |
5802 | (uint64_t) p_end / opb); | |
88967714 | 5803 | adjust = 0; |
502794d4 | 5804 | sec->lma = p_end / opb; |
1cfb7d1e | 5805 | } |
3ac9b6c9 | 5806 | p->p_memsz += adjust; |
1cfb7d1e | 5807 | |
d16e3d2e | 5808 | if (p->p_type == PT_LOAD) |
88967714 | 5809 | { |
d16e3d2e | 5810 | if (this_hdr->sh_type != SHT_NOBITS) |
32812159 | 5811 | { |
d16e3d2e | 5812 | off_adjust = 0; |
30fe1832 AM |
5813 | if (p->p_filesz + adjust < p->p_memsz) |
5814 | { | |
5815 | /* We have a PROGBITS section following NOBITS ones. | |
5816 | Allocate file space for the NOBITS section(s) and | |
5817 | zero it. */ | |
5818 | adjust = p->p_memsz - p->p_filesz; | |
5819 | if (!write_zeros (abfd, off, adjust)) | |
5820 | return FALSE; | |
5821 | } | |
d16e3d2e AM |
5822 | } |
5823 | /* We only adjust sh_offset in SHT_NOBITS sections | |
5824 | as would seem proper for their address when the | |
5825 | section is first in the segment. sh_offset | |
5826 | doesn't really have any significance for | |
5827 | SHT_NOBITS anyway, apart from a notional position | |
5828 | relative to other sections. Historically we | |
5829 | didn't bother with adjusting sh_offset and some | |
5830 | programs depend on it not being adjusted. See | |
5831 | pr12921 and pr25662. */ | |
5832 | if (this_hdr->sh_type != SHT_NOBITS || i == 0) | |
5833 | { | |
30fe1832 | 5834 | off += adjust; |
d16e3d2e AM |
5835 | if (this_hdr->sh_type == SHT_NOBITS) |
5836 | off_adjust += adjust; | |
32812159 | 5837 | } |
252b5132 | 5838 | } |
d16e3d2e AM |
5839 | if (this_hdr->sh_type != SHT_NOBITS) |
5840 | p->p_filesz += adjust; | |
252b5132 RH |
5841 | } |
5842 | ||
5843 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5844 | { | |
b301b248 AM |
5845 | /* The section at i == 0 is the one that actually contains |
5846 | everything. */ | |
4a938328 MS |
5847 | if (i == 0) |
5848 | { | |
627b32bc | 5849 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5850 | off += this_hdr->sh_size; |
5851 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5852 | p->p_memsz = 0; |
5853 | p->p_align = 1; | |
252b5132 | 5854 | } |
4a938328 | 5855 | else |
252b5132 | 5856 | { |
b301b248 | 5857 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5858 | sec->filepos = 0; |
eea6121a | 5859 | sec->size = 0; |
b301b248 AM |
5860 | sec->flags = 0; |
5861 | continue; | |
252b5132 | 5862 | } |
252b5132 RH |
5863 | } |
5864 | else | |
5865 | { | |
1e951488 | 5866 | if (p->p_type == PT_LOAD) |
b301b248 | 5867 | { |
1e951488 AM |
5868 | this_hdr->sh_offset = sec->filepos = off; |
5869 | if (this_hdr->sh_type != SHT_NOBITS) | |
5870 | off += this_hdr->sh_size; | |
5871 | } | |
5872 | else if (this_hdr->sh_type == SHT_NOBITS | |
5873 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5874 | && this_hdr->sh_offset == 0) | |
5875 | { | |
5876 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5877 | (See _bfd_elf_map_sections_to_segments "Create a | |
5878 | final PT_LOAD".) Set sh_offset to the value it | |
5879 | would have if we had created a zero p_filesz and | |
5880 | p_memsz PT_LOAD header for the section. This | |
5881 | also makes the PT_TLS header have the same | |
5882 | p_offset value. */ | |
5883 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5884 | off, align); | |
5885 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5886 | } |
252b5132 | 5887 | |
02bf8d82 | 5888 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5889 | { |
6a3cd2b4 | 5890 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5891 | /* A load section without SHF_ALLOC is something like |
5892 | a note section in a PT_NOTE segment. These take | |
5893 | file space but are not loaded into memory. */ | |
5894 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5895 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5896 | } |
6a3cd2b4 | 5897 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5898 | { |
6a3cd2b4 AM |
5899 | if (p->p_type == PT_TLS) |
5900 | p->p_memsz += this_hdr->sh_size; | |
5901 | ||
5902 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5903 | normal segments. */ | |
5904 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5905 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5906 | } |
5907 | ||
b10a8ae0 L |
5908 | if (align > p->p_align |
5909 | && !m->p_align_valid | |
5910 | && (p->p_type != PT_LOAD | |
5911 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5912 | p->p_align = align; |
5913 | } | |
5914 | ||
bf988460 | 5915 | if (!m->p_flags_valid) |
252b5132 RH |
5916 | { |
5917 | p->p_flags |= PF_R; | |
02bf8d82 | 5918 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5919 | p->p_flags |= PF_X; |
02bf8d82 | 5920 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5921 | p->p_flags |= PF_W; |
5922 | } | |
5923 | } | |
43a8475c | 5924 | |
bf988460 | 5925 | off -= off_adjust; |
0920dee7 | 5926 | |
30fe1832 AM |
5927 | /* PR ld/20815 - Check that the program header segment, if |
5928 | present, will be loaded into memory. */ | |
5929 | if (p->p_type == PT_PHDR | |
5930 | && phdr_load_seg == NULL | |
5931 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5932 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5933 | { | |
5934 | /* The fix for this error is usually to edit the linker script being | |
5935 | used and set up the program headers manually. Either that or | |
5936 | leave room for the headers at the start of the SECTIONS. */ | |
5937 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5938 | " by LOAD segment"), | |
5939 | abfd); | |
7b3c2715 AM |
5940 | if (link_info == NULL) |
5941 | return FALSE; | |
5942 | /* Arrange for the linker to exit with an error, deleting | |
5943 | the output file unless --noinhibit-exec is given. */ | |
5944 | link_info->callbacks->info ("%X"); | |
30fe1832 AM |
5945 | } |
5946 | ||
7c928300 AM |
5947 | /* Check that all sections are in a PT_LOAD segment. |
5948 | Don't check funky gdb generated core files. */ | |
5949 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5950 | { |
5951 | bfd_boolean check_vma = TRUE; | |
5952 | ||
5953 | for (i = 1; i < m->count; i++) | |
5954 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5955 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5956 | ->this_hdr), p) != 0 | |
5957 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5958 | ->this_hdr), p) != 0) | |
0920dee7 | 5959 | { |
9a83a553 AM |
5960 | /* Looks like we have overlays packed into the segment. */ |
5961 | check_vma = FALSE; | |
5962 | break; | |
0920dee7 | 5963 | } |
9a83a553 AM |
5964 | |
5965 | for (i = 0; i < m->count; i++) | |
5966 | { | |
5967 | Elf_Internal_Shdr *this_hdr; | |
5968 | asection *sec; | |
5969 | ||
5970 | sec = m->sections[i]; | |
5971 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5972 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5973 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5974 | { |
4eca0228 | 5975 | _bfd_error_handler |
695344c0 | 5976 | /* xgettext:c-format */ |
871b3ab2 | 5977 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5978 | abfd, sec, j); |
5979 | print_segment_map (m); | |
5980 | } | |
5981 | } | |
5982 | } | |
252b5132 RH |
5983 | } |
5984 | ||
12bd6957 | 5985 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
5986 | |
5987 | if (link_info != NULL | |
5988 | && phdr_load_seg != NULL | |
5989 | && phdr_load_seg->includes_filehdr) | |
5990 | { | |
5991 | /* There is a segment that contains both the file headers and the | |
5992 | program headers, so provide a symbol __ehdr_start pointing there. | |
5993 | A program can use this to examine itself robustly. */ | |
5994 | ||
5995 | struct elf_link_hash_entry *hash | |
5996 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5997 | FALSE, FALSE, TRUE); | |
5998 | /* If the symbol was referenced and not defined, define it. */ | |
5999 | if (hash != NULL | |
6000 | && (hash->root.type == bfd_link_hash_new | |
6001 | || hash->root.type == bfd_link_hash_undefined | |
6002 | || hash->root.type == bfd_link_hash_undefweak | |
6003 | || hash->root.type == bfd_link_hash_common)) | |
6004 | { | |
6005 | asection *s = NULL; | |
66631823 | 6006 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr / opb; |
30fe1832 AM |
6007 | |
6008 | if (phdr_load_seg->count != 0) | |
6009 | /* The segment contains sections, so use the first one. */ | |
6010 | s = phdr_load_seg->sections[0]; | |
6011 | else | |
6012 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
6013 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6014 | if (m->p_type == PT_LOAD && m->count != 0) | |
6015 | { | |
6016 | s = m->sections[0]; | |
6017 | break; | |
6018 | } | |
6019 | ||
6020 | if (s != NULL) | |
6021 | { | |
6022 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6023 | hash->root.u.def.section = s; | |
6024 | } | |
6025 | else | |
6026 | { | |
6027 | hash->root.u.def.value = filehdr_vaddr; | |
6028 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6029 | } | |
6030 | ||
dd0ed54c | 6031 | hash->size = bed->s->sizeof_ehdr + elf_program_header_size (abfd); |
30fe1832 AM |
6032 | hash->root.type = bfd_link_hash_defined; |
6033 | hash->def_regular = 1; | |
6034 | hash->non_elf = 0; | |
6035 | } | |
6036 | } | |
6037 | ||
f3520d2f AM |
6038 | return TRUE; |
6039 | } | |
6040 | ||
1faa385f NC |
6041 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6042 | is no defined method for detecting such files, so we have to | |
6043 | use heuristics instead. */ | |
6044 | ||
6045 | bfd_boolean | |
6046 | is_debuginfo_file (bfd *abfd) | |
6047 | { | |
6048 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
6049 | return FALSE; | |
6050 | ||
6051 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6052 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6053 | Elf_Internal_Shdr **headerp; | |
6054 | ||
6055 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6056 | { | |
6057 | Elf_Internal_Shdr *header = * headerp; | |
6058 | ||
6059 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6060 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6061 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6062 | && header->sh_type != SHT_NOBITS | |
6063 | && header->sh_type != SHT_NOTE) | |
6064 | return FALSE; | |
6065 | } | |
6066 | ||
6067 | return TRUE; | |
6068 | } | |
6069 | ||
1ff6de03 NA |
6070 | /* Assign file positions for the other sections, except for compressed debugging |
6071 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f AM |
6072 | |
6073 | static bfd_boolean | |
6074 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
6075 | struct bfd_link_info *link_info) | |
6076 | { | |
6077 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6078 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6079 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6080 | Elf_Internal_Phdr *phdrs; |
6081 | Elf_Internal_Phdr *p; | |
6082 | struct elf_segment_map *m; | |
f3520d2f | 6083 | file_ptr off; |
66631823 | 6084 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
f3520d2f | 6085 | |
5c182d5f | 6086 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6087 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6088 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6089 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6090 | { |
5c182d5f AM |
6091 | Elf_Internal_Shdr *hdr; |
6092 | ||
6093 | hdr = *hdrpp; | |
6094 | if (hdr->bfd_section != NULL | |
252e386e AM |
6095 | && (hdr->bfd_section->filepos != 0 |
6096 | || (hdr->sh_type == SHT_NOBITS | |
6097 | && hdr->contents == NULL))) | |
627b32bc | 6098 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6099 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6100 | { | |
1faa385f NC |
6101 | if (hdr->sh_size != 0 |
6102 | /* PR 24717 - debuginfo files are known to be not strictly | |
6103 | compliant with the ELF standard. In particular they often | |
6104 | have .note.gnu.property sections that are outside of any | |
6105 | loadable segment. This is not a problem for such files, | |
6106 | so do not warn about them. */ | |
6107 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6108 | _bfd_error_handler |
695344c0 | 6109 | /* xgettext:c-format */ |
871b3ab2 | 6110 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6111 | abfd, |
6112 | (hdr->bfd_section == NULL | |
6113 | ? "*unknown*" | |
6114 | : hdr->bfd_section->name)); | |
3ba71138 L |
6115 | /* We don't need to page align empty sections. */ |
6116 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
6117 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
6118 | bed->maxpagesize); | |
6119 | else | |
6120 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
6121 | hdr->sh_addralign); | |
6122 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
6123 | FALSE); | |
6124 | } | |
6125 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6126 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6127 | /* We don't know the offset of these sections yet: their size has |
6128 | not been decided. */ | |
0ce398f1 | 6129 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6130 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6131 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6132 | && abfd->is_linker_output))) | |
12bd6957 | 6133 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6134 | || (elf_symtab_shndx_list (abfd) != NULL |
6135 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6136 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6137 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6138 | hdr->sh_offset = -1; |
6139 | else | |
6140 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f | 6141 | } |
30fe1832 | 6142 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6143 | |
252b5132 RH |
6144 | /* Now that we have set the section file positions, we can set up |
6145 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6146 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6147 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6148 | { |
129af99f | 6149 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6150 | { |
66631823 | 6151 | bfd_vma start, end; /* Bytes. */ |
01f7e10c | 6152 | bfd_boolean ok; |
1ea63fd2 | 6153 | |
129af99f | 6154 | if (link_info != NULL) |
8c37241b | 6155 | { |
129af99f | 6156 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6157 | in link_info. Note that there may be padding between |
6158 | relro_start and the first RELRO section. */ | |
6159 | start = link_info->relro_start; | |
6160 | end = link_info->relro_end; | |
6161 | } | |
6162 | else if (m->count != 0) | |
6163 | { | |
6164 | if (!m->p_size_valid) | |
6165 | abort (); | |
6166 | start = m->sections[0]->vma; | |
66631823 | 6167 | end = start + m->p_size / opb; |
f2731e0c AM |
6168 | } |
6169 | else | |
6170 | { | |
6171 | start = 0; | |
6172 | end = 0; | |
6173 | } | |
6174 | ||
01f7e10c | 6175 | ok = FALSE; |
f2731e0c AM |
6176 | if (start < end) |
6177 | { | |
6178 | struct elf_segment_map *lm; | |
6179 | const Elf_Internal_Phdr *lp; | |
6180 | unsigned int i; | |
6181 | ||
6182 | /* Find a LOAD segment containing a section in the RELRO | |
6183 | segment. */ | |
12bd6957 | 6184 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6185 | lm != NULL; |
6186 | lm = lm->next, lp++) | |
8c37241b JJ |
6187 | { |
6188 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6189 | && lm->count != 0 |
dbc88fc1 AM |
6190 | && (lm->sections[lm->count - 1]->vma |
6191 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
66631823 | 6192 | ? lm->sections[lm->count - 1]->size / opb |
dbc88fc1 | 6193 | : 0)) > start |
f2731e0c | 6194 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6195 | break; |
6196 | } | |
f2731e0c | 6197 | |
01f7e10c | 6198 | if (lm != NULL) |
129af99f | 6199 | { |
01f7e10c AM |
6200 | /* Find the section starting the RELRO segment. */ |
6201 | for (i = 0; i < lm->count; i++) | |
6202 | { | |
6203 | asection *s = lm->sections[i]; | |
6204 | if (s->vma >= start | |
6205 | && s->vma < end | |
6206 | && s->size != 0) | |
6207 | break; | |
6208 | } | |
6209 | ||
6210 | if (i < lm->count) | |
6211 | { | |
502794d4 CE |
6212 | p->p_vaddr = lm->sections[i]->vma * opb; |
6213 | p->p_paddr = lm->sections[i]->lma * opb; | |
01f7e10c | 6214 | p->p_offset = lm->sections[i]->filepos; |
66631823 | 6215 | p->p_memsz = end * opb - p->p_vaddr; |
01f7e10c AM |
6216 | p->p_filesz = p->p_memsz; |
6217 | ||
6218 | /* The RELRO segment typically ends a few bytes | |
6219 | into .got.plt but other layouts are possible. | |
6220 | In cases where the end does not match any | |
6221 | loaded section (for instance is in file | |
6222 | padding), trim p_filesz back to correspond to | |
6223 | the end of loaded section contents. */ | |
6224 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6225 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6226 | ||
6227 | /* Preserve the alignment and flags if they are | |
6228 | valid. The gold linker generates RW/4 for | |
6229 | the PT_GNU_RELRO section. It is better for | |
6230 | objcopy/strip to honor these attributes | |
6231 | otherwise gdb will choke when using separate | |
6232 | debug files. */ | |
6233 | if (!m->p_align_valid) | |
6234 | p->p_align = 1; | |
6235 | if (!m->p_flags_valid) | |
6236 | p->p_flags = PF_R; | |
6237 | ok = TRUE; | |
6238 | } | |
129af99f | 6239 | } |
b84a33b5 | 6240 | } |
01f7e10c AM |
6241 | if (link_info != NULL) |
6242 | BFD_ASSERT (ok); | |
6243 | if (!ok) | |
6244 | memset (p, 0, sizeof *p); | |
129af99f | 6245 | } |
04c3a755 NS |
6246 | else if (p->p_type == PT_GNU_STACK) |
6247 | { | |
6248 | if (m->p_size_valid) | |
6249 | p->p_memsz = m->p_size; | |
6250 | } | |
129af99f AS |
6251 | else if (m->count != 0) |
6252 | { | |
e06efbf1 | 6253 | unsigned int i; |
1a9ccd70 | 6254 | |
129af99f AS |
6255 | if (p->p_type != PT_LOAD |
6256 | && (p->p_type != PT_NOTE | |
6257 | || bfd_get_format (abfd) != bfd_core)) | |
6258 | { | |
1a9ccd70 NC |
6259 | /* A user specified segment layout may include a PHDR |
6260 | segment that overlaps with a LOAD segment... */ | |
6261 | if (p->p_type == PT_PHDR) | |
6262 | { | |
6263 | m->count = 0; | |
6264 | continue; | |
6265 | } | |
6266 | ||
c86934ce NC |
6267 | if (m->includes_filehdr || m->includes_phdrs) |
6268 | { | |
b1fa9dd6 | 6269 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6270 | _bfd_error_handler |
871b3ab2 | 6271 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6272 | "and/or program header"), |
6273 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6274 | return FALSE; |
6275 | } | |
129af99f | 6276 | |
86b2281f | 6277 | p->p_filesz = 0; |
129af99f | 6278 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6279 | for (i = m->count; i-- != 0;) |
6280 | { | |
6281 | asection *sect = m->sections[i]; | |
6282 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6283 | if (hdr->sh_type != SHT_NOBITS) | |
6284 | { | |
6285 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6286 | + hdr->sh_size); | |
6287 | break; | |
6288 | } | |
6289 | } | |
129af99f AS |
6290 | } |
6291 | } | |
252b5132 RH |
6292 | } |
6293 | ||
b34976b6 | 6294 | return TRUE; |
252b5132 RH |
6295 | } |
6296 | ||
6a40cf0c NC |
6297 | static elf_section_list * |
6298 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6299 | { | |
6300 | for (;list != NULL; list = list->next) | |
6301 | if (list->ndx == i) | |
6302 | break; | |
6303 | return list; | |
6304 | } | |
6305 | ||
252b5132 RH |
6306 | /* Work out the file positions of all the sections. This is called by |
6307 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6308 | VMAs must be known before this is called. | |
6309 | ||
e0638f70 | 6310 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6311 | "side-channel" data attached to a section to which they apply, and those that |
6312 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6313 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6314 | here, unless they form part of the loadable image. Reloc sections not | |
6315 | assigned here (and compressed debugging sections and CTF sections which | |
6316 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6317 | assign_file_positions_for_relocs. |
252b5132 RH |
6318 | |
6319 | We also don't set the positions of the .symtab and .strtab here. */ | |
6320 | ||
b34976b6 | 6321 | static bfd_boolean |
c84fca4d AO |
6322 | assign_file_positions_except_relocs (bfd *abfd, |
6323 | struct bfd_link_info *link_info) | |
252b5132 | 6324 | { |
5c182d5f AM |
6325 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6326 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6327 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6328 | unsigned int alloc; |
252b5132 RH |
6329 | |
6330 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6331 | && bfd_get_format (abfd) != bfd_core) | |
6332 | { | |
5c182d5f AM |
6333 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6334 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6335 | Elf_Internal_Shdr **hdrpp; |
6336 | unsigned int i; | |
a485e98e | 6337 | file_ptr off; |
252b5132 RH |
6338 | |
6339 | /* Start after the ELF header. */ | |
6340 | off = i_ehdrp->e_ehsize; | |
6341 | ||
6342 | /* We are not creating an executable, which means that we are | |
6343 | not creating a program header, and that the actual order of | |
6344 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6345 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6346 | { |
6347 | Elf_Internal_Shdr *hdr; | |
6348 | ||
6349 | hdr = *hdrpp; | |
e0638f70 AM |
6350 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6351 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6352 | /* Do not assign offsets for these sections yet: we don't know |
6353 | their sizes. */ | |
0ce398f1 | 6354 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6355 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6356 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6357 | && abfd->is_linker_output))) | |
12bd6957 | 6358 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6359 | || (elf_symtab_shndx_list (abfd) != NULL |
6360 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6361 | || i == elf_strtab_sec (abfd) |
6362 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6363 | { |
6364 | hdr->sh_offset = -1; | |
252b5132 | 6365 | } |
9ad5cbcf | 6366 | else |
b34976b6 | 6367 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6368 | } |
a485e98e AM |
6369 | |
6370 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6371 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6372 | } |
6373 | else | |
6374 | { | |
252b5132 | 6375 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6376 | assignment of sections to segments. */ |
f3520d2f AM |
6377 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6378 | return FALSE; | |
6379 | ||
6380 | /* And for non-load sections. */ | |
6381 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6382 | return FALSE; | |
6d6c25c8 | 6383 | } |
f3520d2f | 6384 | |
6d6c25c8 AM |
6385 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
6386 | return FALSE; | |
1a9ccd70 | 6387 | |
6d6c25c8 AM |
6388 | /* Write out the program headers. */ |
6389 | alloc = i_ehdrp->e_phnum; | |
6390 | if (alloc != 0) | |
6391 | { | |
30fe1832 | 6392 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 NC |
6393 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6394 | return FALSE; | |
252b5132 RH |
6395 | } |
6396 | ||
b34976b6 | 6397 | return TRUE; |
252b5132 RH |
6398 | } |
6399 | ||
ed7e9d0b AM |
6400 | bfd_boolean |
6401 | _bfd_elf_init_file_header (bfd *abfd, | |
6402 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6403 | { |
3d540e93 | 6404 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6405 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6406 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6407 | |
6408 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6409 | |
2b0f7ef9 | 6410 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6411 | if (shstrtab == NULL) |
b34976b6 | 6412 | return FALSE; |
252b5132 RH |
6413 | |
6414 | elf_shstrtab (abfd) = shstrtab; | |
6415 | ||
6416 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6417 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6418 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6419 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6420 | ||
6421 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6422 | i_ehdrp->e_ident[EI_DATA] = | |
6423 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6424 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6425 | ||
252b5132 RH |
6426 | if ((abfd->flags & DYNAMIC) != 0) |
6427 | i_ehdrp->e_type = ET_DYN; | |
6428 | else if ((abfd->flags & EXEC_P) != 0) | |
6429 | i_ehdrp->e_type = ET_EXEC; | |
6430 | else if (bfd_get_format (abfd) == bfd_core) | |
6431 | i_ehdrp->e_type = ET_CORE; | |
6432 | else | |
6433 | i_ehdrp->e_type = ET_REL; | |
6434 | ||
6435 | switch (bfd_get_arch (abfd)) | |
6436 | { | |
6437 | case bfd_arch_unknown: | |
6438 | i_ehdrp->e_machine = EM_NONE; | |
6439 | break; | |
aa4f99bb AO |
6440 | |
6441 | /* There used to be a long list of cases here, each one setting | |
6442 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6443 | in the corresponding bfd definition. To avoid duplication, | |
6444 | the switch was removed. Machines that need special handling | |
6445 | can generally do it in elf_backend_final_write_processing(), | |
6446 | unless they need the information earlier than the final write. | |
6447 | Such need can generally be supplied by replacing the tests for | |
6448 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6449 | default: |
9c5bfbb7 AM |
6450 | i_ehdrp->e_machine = bed->elf_machine_code; |
6451 | } | |
aa4f99bb | 6452 | |
252b5132 RH |
6453 | i_ehdrp->e_version = bed->s->ev_current; |
6454 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6455 | ||
c044fabd | 6456 | /* No program header, for now. */ |
252b5132 RH |
6457 | i_ehdrp->e_phoff = 0; |
6458 | i_ehdrp->e_phentsize = 0; | |
6459 | i_ehdrp->e_phnum = 0; | |
6460 | ||
c044fabd | 6461 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6462 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6463 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6464 | ||
252b5132 | 6465 | elf_tdata (abfd)->symtab_hdr.sh_name = |
b34976b6 | 6466 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6467 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6468 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6469 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6470 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6471 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6472 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6473 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6474 | return FALSE; |
252b5132 | 6475 | |
b34976b6 | 6476 | return TRUE; |
252b5132 RH |
6477 | } |
6478 | ||
6d6c25c8 AM |
6479 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6480 | ||
6481 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6482 | ascending order, as per the ELF spec. But this breaks some programs, | |
6483 | including the Linux kernel. But really either the spec should be | |
6484 | changed or the programs updated. */ | |
6485 | ||
6486 | bfd_boolean | |
6487 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) | |
6488 | { | |
6489 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6490 | { | |
6491 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6492 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6493 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6494 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6495 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6496 | ||
6497 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6498 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6499 | for (; segment < end_segment; segment++) | |
6500 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6501 | p_vaddr = segment->p_vaddr; | |
6502 | ||
6503 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6504 | segments is non-zero. */ | |
6505 | if (p_vaddr) | |
6506 | i_ehdrp->e_type = ET_EXEC; | |
6507 | } | |
6508 | return TRUE; | |
6509 | } | |
6510 | ||
252b5132 | 6511 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6512 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6513 | |
0ce398f1 L |
6514 | static bfd_boolean |
6515 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6516 | { |
6517 | file_ptr off; | |
e06efbf1 | 6518 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6519 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6520 | Elf_Internal_Ehdr *i_ehdrp; |
6521 | const struct elf_backend_data *bed; | |
252b5132 | 6522 | |
12bd6957 | 6523 | off = elf_next_file_pos (abfd); |
252b5132 | 6524 | |
e06efbf1 L |
6525 | shdrpp = elf_elfsections (abfd); |
6526 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6527 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6528 | { |
252b5132 | 6529 | shdrp = *shdrpp; |
0ce398f1 L |
6530 | if (shdrp->sh_offset == -1) |
6531 | { | |
3e19fb8f | 6532 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6533 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6534 | || shdrp->sh_type == SHT_RELA); | |
1ff6de03 | 6535 | bfd_boolean is_ctf = sec && bfd_section_is_ctf (sec); |
0ce398f1 | 6536 | if (is_rel |
1ff6de03 | 6537 | || is_ctf |
3e19fb8f | 6538 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6539 | { |
1ff6de03 | 6540 | if (!is_rel && !is_ctf) |
0ce398f1 | 6541 | { |
3e19fb8f L |
6542 | const char *name = sec->name; |
6543 | struct bfd_elf_section_data *d; | |
6544 | ||
0ce398f1 | 6545 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6546 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6547 | shdrp->contents)) |
6548 | return FALSE; | |
3e19fb8f L |
6549 | |
6550 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6551 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6552 | { | |
6553 | /* If section is compressed with zlib-gnu, convert | |
6554 | section name from .debug_* to .zdebug_*. */ | |
6555 | char *new_name | |
6556 | = convert_debug_to_zdebug (abfd, name); | |
6557 | if (new_name == NULL) | |
6558 | return FALSE; | |
6559 | name = new_name; | |
6560 | } | |
dd905818 | 6561 | /* Add section name to section name section. */ |
3e19fb8f L |
6562 | if (shdrp->sh_name != (unsigned int) -1) |
6563 | abort (); | |
6564 | shdrp->sh_name | |
6565 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6566 | name, FALSE); | |
6567 | d = elf_section_data (sec); | |
6568 | ||
dd905818 | 6569 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6570 | if (d->rel.hdr |
6571 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6572 | d->rel.hdr, | |
6573 | name, FALSE)) | |
6574 | return FALSE; | |
6575 | if (d->rela.hdr | |
6576 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6577 | d->rela.hdr, | |
91cb26da | 6578 | name, TRUE)) |
3e19fb8f L |
6579 | return FALSE; |
6580 | ||
0ce398f1 | 6581 | /* Update section size and contents. */ |
3e19fb8f L |
6582 | shdrp->sh_size = sec->size; |
6583 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6584 | shdrp->bfd_section->contents = NULL; |
6585 | } | |
1ff6de03 NA |
6586 | else if (is_ctf) |
6587 | { | |
6588 | /* Update section size and contents. */ | |
6589 | shdrp->sh_size = sec->size; | |
6590 | shdrp->contents = sec->contents; | |
6591 | } | |
6592 | ||
0ce398f1 L |
6593 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6594 | off, | |
6595 | TRUE); | |
6596 | } | |
6597 | } | |
252b5132 RH |
6598 | } |
6599 | ||
3e19fb8f L |
6600 | /* Place section name section after DWARF debug sections have been |
6601 | compressed. */ | |
6602 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6603 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6604 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6605 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6606 | ||
6607 | /* Place the section headers. */ | |
a485e98e AM |
6608 | i_ehdrp = elf_elfheader (abfd); |
6609 | bed = get_elf_backend_data (abfd); | |
6610 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6611 | i_ehdrp->e_shoff = off; | |
6612 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6613 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6614 | |
6615 | return TRUE; | |
252b5132 RH |
6616 | } |
6617 | ||
b34976b6 | 6618 | bfd_boolean |
217aa764 | 6619 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6620 | { |
9c5bfbb7 | 6621 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6622 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6623 | bfd_boolean failed; |
9ad5cbcf | 6624 | unsigned int count, num_sec; |
30e8ee25 | 6625 | struct elf_obj_tdata *t; |
252b5132 RH |
6626 | |
6627 | if (! abfd->output_has_begun | |
217aa764 | 6628 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6629 | return FALSE; |
db727370 JL |
6630 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6631 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6632 | sections, and modification of existing section sizes was restricted. | |
6633 | This means the ELF header, program headers and section headers can't have | |
6634 | changed. | |
6635 | If the contents of any sections has been modified, then those changes have | |
6636 | already been written to the BFD. */ | |
6637 | else if (abfd->direction == both_direction) | |
6638 | { | |
6639 | BFD_ASSERT (abfd->output_has_begun); | |
6640 | return TRUE; | |
6641 | } | |
252b5132 RH |
6642 | |
6643 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6644 | |
b34976b6 | 6645 | failed = FALSE; |
252b5132 RH |
6646 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6647 | if (failed) | |
b34976b6 | 6648 | return FALSE; |
252b5132 | 6649 | |
0ce398f1 L |
6650 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6651 | return FALSE; | |
252b5132 | 6652 | |
c044fabd | 6653 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6654 | num_sec = elf_numsections (abfd); |
6655 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6656 | { |
3e19fb8f L |
6657 | i_shdrp[count]->sh_name |
6658 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6659 | i_shdrp[count]->sh_name); | |
252b5132 | 6660 | if (bed->elf_backend_section_processing) |
75506100 MR |
6661 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6662 | return FALSE; | |
252b5132 RH |
6663 | if (i_shdrp[count]->contents) |
6664 | { | |
dc810e39 AM |
6665 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6666 | ||
252b5132 | 6667 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6668 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6669 | return FALSE; |
252b5132 RH |
6670 | } |
6671 | } | |
6672 | ||
6673 | /* Write out the section header names. */ | |
30e8ee25 | 6674 | t = elf_tdata (abfd); |
26ae6d5e | 6675 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6676 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6677 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6678 | return FALSE; |
252b5132 | 6679 | |
cc364be6 AM |
6680 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
6681 | return FALSE; | |
252b5132 | 6682 | |
ff59fc36 RM |
6683 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6684 | return FALSE; | |
6685 | ||
6686 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6687 | if (t->o->build_id.after_write_object_contents != NULL) |
6688 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6689 | |
6690 | return TRUE; | |
252b5132 RH |
6691 | } |
6692 | ||
b34976b6 | 6693 | bfd_boolean |
217aa764 | 6694 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6695 | { |
c044fabd | 6696 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6697 | return _bfd_elf_write_object_contents (abfd); |
6698 | } | |
c044fabd KH |
6699 | |
6700 | /* Given a section, search the header to find them. */ | |
6701 | ||
cb33740c | 6702 | unsigned int |
198beae2 | 6703 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6704 | { |
9c5bfbb7 | 6705 | const struct elf_backend_data *bed; |
91d6fa6a | 6706 | unsigned int sec_index; |
252b5132 | 6707 | |
9ad5cbcf AM |
6708 | if (elf_section_data (asect) != NULL |
6709 | && elf_section_data (asect)->this_idx != 0) | |
6710 | return elf_section_data (asect)->this_idx; | |
6711 | ||
6712 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6713 | sec_index = SHN_ABS; |
af746e92 | 6714 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6715 | sec_index = SHN_COMMON; |
af746e92 | 6716 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6717 | sec_index = SHN_UNDEF; |
af746e92 | 6718 | else |
91d6fa6a | 6719 | sec_index = SHN_BAD; |
252b5132 | 6720 | |
af746e92 | 6721 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6722 | if (bed->elf_backend_section_from_bfd_section) |
6723 | { | |
91d6fa6a | 6724 | int retval = sec_index; |
9ad5cbcf | 6725 | |
af746e92 AM |
6726 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6727 | return retval; | |
252b5132 RH |
6728 | } |
6729 | ||
91d6fa6a | 6730 | if (sec_index == SHN_BAD) |
af746e92 | 6731 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6732 | |
91d6fa6a | 6733 | return sec_index; |
252b5132 RH |
6734 | } |
6735 | ||
6736 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6737 | on error. */ | |
6738 | ||
6739 | int | |
217aa764 | 6740 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6741 | { |
6742 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6743 | int idx; | |
6744 | flagword flags = asym_ptr->flags; | |
6745 | ||
6746 | /* When gas creates relocations against local labels, it creates its | |
6747 | own symbol for the section, but does put the symbol into the | |
6748 | symbol chain, so udata is 0. When the linker is generating | |
6749 | relocatable output, this section symbol may be for one of the | |
6750 | input sections rather than the output section. */ | |
6751 | if (asym_ptr->udata.i == 0 | |
6752 | && (flags & BSF_SECTION_SYM) | |
6753 | && asym_ptr->section) | |
6754 | { | |
5372391b | 6755 | asection *sec; |
252b5132 RH |
6756 | int indx; |
6757 | ||
5372391b AM |
6758 | sec = asym_ptr->section; |
6759 | if (sec->owner != abfd && sec->output_section != NULL) | |
6760 | sec = sec->output_section; | |
6761 | if (sec->owner == abfd | |
6762 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6763 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6764 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6765 | } | |
6766 | ||
6767 | idx = asym_ptr->udata.i; | |
6768 | ||
6769 | if (idx == 0) | |
6770 | { | |
6771 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6772 | which is used in a relocation entry. */ |
4eca0228 | 6773 | _bfd_error_handler |
695344c0 | 6774 | /* xgettext:c-format */ |
871b3ab2 | 6775 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6776 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6777 | bfd_set_error (bfd_error_no_symbols); |
6778 | return -1; | |
6779 | } | |
6780 | ||
6781 | #if DEBUG & 4 | |
6782 | { | |
6783 | fprintf (stderr, | |
cd9af601 AM |
6784 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6785 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6786 | fflush (stderr); |
6787 | } | |
6788 | #endif | |
6789 | ||
6790 | return idx; | |
6791 | } | |
6792 | ||
84d1d650 | 6793 | /* Rewrite program header information. */ |
252b5132 | 6794 | |
b34976b6 | 6795 | static bfd_boolean |
84d1d650 | 6796 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6797 | { |
b34976b6 AM |
6798 | Elf_Internal_Ehdr *iehdr; |
6799 | struct elf_segment_map *map; | |
6800 | struct elf_segment_map *map_first; | |
6801 | struct elf_segment_map **pointer_to_map; | |
6802 | Elf_Internal_Phdr *segment; | |
6803 | asection *section; | |
6804 | unsigned int i; | |
6805 | unsigned int num_segments; | |
6806 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6807 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6808 | bfd_vma maxpagesize; |
6809 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6810 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6811 | const struct elf_backend_data *bed; |
502794d4 | 6812 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
bc67d8a6 | 6813 | |
caf47ea6 | 6814 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6815 | iehdr = elf_elfheader (ibfd); |
6816 | ||
bc67d8a6 | 6817 | map_first = NULL; |
c044fabd | 6818 | pointer_to_map = &map_first; |
252b5132 RH |
6819 | |
6820 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6821 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6822 | ||
6823 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6824 | #define SEGMENT_END(segment, start) \ |
6825 | (start + (segment->p_memsz > segment->p_filesz \ | |
6826 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6827 | |
eecdbe52 JJ |
6828 | #define SECTION_SIZE(section, segment) \ |
6829 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6830 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6831 | ? section->size : 0) |
eecdbe52 | 6832 | |
b34976b6 | 6833 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6834 | the given segment. VMA addresses are compared. */ |
502794d4 CE |
6835 | #define IS_CONTAINED_BY_VMA(section, segment, opb) \ |
6836 | (section->vma * (opb) >= segment->p_vaddr \ | |
6837 | && (section->vma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6838 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6839 | |
b34976b6 | 6840 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6841 | the given segment. LMA addresses are compared. */ |
502794d4 CE |
6842 | #define IS_CONTAINED_BY_LMA(section, segment, base, opb) \ |
6843 | (section->lma * (opb) >= base \ | |
6844 | && (section->lma + SECTION_SIZE (section, segment) / (opb) >= section->lma) \ | |
6845 | && (section->lma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6846 | <= SEGMENT_END (segment, base))) |
252b5132 | 6847 | |
0efc80c8 L |
6848 | /* Handle PT_NOTE segment. */ |
6849 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6850 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6851 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6852 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6853 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6854 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6855 | |
0efc80c8 L |
6856 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6857 | etc. */ | |
6858 | #define IS_COREFILE_NOTE(p, s) \ | |
6859 | (IS_NOTE (p, s) \ | |
6860 | && bfd_get_format (ibfd) == bfd_core \ | |
6861 | && s->vma == 0 \ | |
6862 | && s->lma == 0) | |
6863 | ||
252b5132 RH |
6864 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6865 | linker, which generates a PT_INTERP section with p_vaddr and | |
6866 | p_memsz set to 0. */ | |
aecc8f8a AM |
6867 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6868 | (p->p_vaddr == 0 \ | |
6869 | && p->p_paddr == 0 \ | |
6870 | && p->p_memsz == 0 \ | |
6871 | && p->p_filesz > 0 \ | |
6872 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6873 | && s->size > 0 \ |
aecc8f8a | 6874 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6875 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6876 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6877 | |
bc67d8a6 NC |
6878 | /* Decide if the given section should be included in the given segment. |
6879 | A section will be included if: | |
f5ffc919 | 6880 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6881 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6882 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6883 | segment. |
bc67d8a6 | 6884 | 3. There is an output section associated with it, |
eecdbe52 | 6885 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6886 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6887 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6888 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6889 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6890 | (with the possible exception of .dynamic). */ |
502794d4 | 6891 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed, opb) \ |
2b05f1b7 | 6892 | ((((segment->p_paddr \ |
502794d4 CE |
6893 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr, opb) \ |
6894 | : IS_CONTAINED_BY_VMA (section, segment, opb)) \ | |
2b05f1b7 | 6895 | && (section->flags & SEC_ALLOC) != 0) \ |
0efc80c8 | 6896 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6897 | && segment->p_type != PT_GNU_STACK \ |
6898 | && (segment->p_type != PT_TLS \ | |
6899 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6900 | && (segment->p_type == PT_LOAD \ | |
6901 | || segment->p_type == PT_TLS \ | |
6902 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6903 | && (segment->p_type != PT_DYNAMIC \ | |
6904 | || SECTION_SIZE (section, segment) > 0 \ | |
6905 | || (segment->p_paddr \ | |
502794d4 CE |
6906 | ? segment->p_paddr != section->lma * (opb) \ |
6907 | : segment->p_vaddr != section->vma * (opb)) \ | |
fd361982 | 6908 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6909 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6910 | |
9f17e2a6 L |
6911 | /* If the output section of a section in the input segment is NULL, |
6912 | it is removed from the corresponding output segment. */ | |
502794d4 CE |
6913 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed, opb) \ |
6914 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb) \ | |
9f17e2a6 L |
6915 | && section->output_section != NULL) |
6916 | ||
b34976b6 | 6917 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6918 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6919 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6920 | ||
6921 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6922 | their VMA address ranges and their LMA address ranges overlap. | |
6923 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6924 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6925 | to the same VMA range, but with the .data section mapped to a different | |
6926 | LMA. */ | |
aecc8f8a | 6927 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6928 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6929 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6930 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6931 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6932 | |
6933 | /* Initialise the segment mark field. */ | |
6934 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6935 | section->segment_mark = FALSE; |
bc67d8a6 | 6936 | |
5c44b38e AM |
6937 | /* The Solaris linker creates program headers in which all the |
6938 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6939 | file, we get confused. Check for this case, and if we find it | |
6940 | don't set the p_paddr_valid fields. */ | |
6941 | p_paddr_valid = FALSE; | |
6942 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6943 | i < num_segments; | |
6944 | i++, segment++) | |
6945 | if (segment->p_paddr != 0) | |
6946 | { | |
6947 | p_paddr_valid = TRUE; | |
6948 | break; | |
6949 | } | |
6950 | ||
252b5132 | 6951 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6952 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6953 | in the loadable segments. These can be created by weird |
aecc8f8a | 6954 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6955 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6956 | i < num_segments; | |
c044fabd | 6957 | i++, segment++) |
252b5132 | 6958 | { |
252b5132 | 6959 | unsigned int j; |
c044fabd | 6960 | Elf_Internal_Phdr *segment2; |
252b5132 | 6961 | |
aecc8f8a AM |
6962 | if (segment->p_type == PT_INTERP) |
6963 | for (section = ibfd->sections; section; section = section->next) | |
6964 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6965 | { | |
6966 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6967 | assignment code will work. */ |
502794d4 | 6968 | segment->p_vaddr = section->vma * opb; |
aecc8f8a AM |
6969 | break; |
6970 | } | |
6971 | ||
bc67d8a6 | 6972 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6973 | { |
6974 | /* Remove PT_GNU_RELRO segment. */ | |
6975 | if (segment->p_type == PT_GNU_RELRO) | |
6976 | segment->p_type = PT_NULL; | |
6977 | continue; | |
6978 | } | |
c044fabd | 6979 | |
bc67d8a6 | 6980 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6981 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6982 | { |
6983 | bfd_signed_vma extra_length; | |
c044fabd | 6984 | |
bc67d8a6 | 6985 | if (segment2->p_type != PT_LOAD |
0067a569 | 6986 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6987 | continue; |
c044fabd | 6988 | |
bc67d8a6 NC |
6989 | /* Merge the two segments together. */ |
6990 | if (segment2->p_vaddr < segment->p_vaddr) | |
6991 | { | |
c044fabd | 6992 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6993 | SEGMENT. */ |
0067a569 AM |
6994 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6995 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6996 | |
bc67d8a6 NC |
6997 | if (extra_length > 0) |
6998 | { | |
0067a569 | 6999 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
7000 | segment2->p_filesz += extra_length; |
7001 | } | |
c044fabd | 7002 | |
bc67d8a6 | 7003 | segment->p_type = PT_NULL; |
c044fabd | 7004 | |
bc67d8a6 NC |
7005 | /* Since we have deleted P we must restart the outer loop. */ |
7006 | i = 0; | |
7007 | segment = elf_tdata (ibfd)->phdr; | |
7008 | break; | |
7009 | } | |
7010 | else | |
7011 | { | |
c044fabd | 7012 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 7013 | SEGMENT2. */ |
0067a569 AM |
7014 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
7015 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 7016 | |
bc67d8a6 NC |
7017 | if (extra_length > 0) |
7018 | { | |
0067a569 | 7019 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7020 | segment->p_filesz += extra_length; |
7021 | } | |
c044fabd | 7022 | |
bc67d8a6 NC |
7023 | segment2->p_type = PT_NULL; |
7024 | } | |
7025 | } | |
7026 | } | |
c044fabd | 7027 | |
bc67d8a6 NC |
7028 | /* The second scan attempts to assign sections to segments. */ |
7029 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7030 | i < num_segments; | |
0067a569 | 7031 | i++, segment++) |
bc67d8a6 | 7032 | { |
0067a569 AM |
7033 | unsigned int section_count; |
7034 | asection **sections; | |
7035 | asection *output_section; | |
7036 | unsigned int isec; | |
9933dc52 AM |
7037 | asection *matching_lma; |
7038 | asection *suggested_lma; | |
0067a569 | 7039 | unsigned int j; |
446f7ed5 | 7040 | size_t amt; |
0067a569 | 7041 | asection *first_section; |
bc67d8a6 NC |
7042 | |
7043 | if (segment->p_type == PT_NULL) | |
7044 | continue; | |
c044fabd | 7045 | |
9f17e2a6 | 7046 | first_section = NULL; |
bc67d8a6 | 7047 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7048 | for (section = ibfd->sections, section_count = 0; |
7049 | section != NULL; | |
7050 | section = section->next) | |
9f17e2a6 L |
7051 | { |
7052 | /* Find the first section in the input segment, which may be | |
7053 | removed from the corresponding output segment. */ | |
502794d4 | 7054 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb)) |
9f17e2a6 L |
7055 | { |
7056 | if (first_section == NULL) | |
7057 | first_section = section; | |
7058 | if (section->output_section != NULL) | |
7059 | ++section_count; | |
7060 | } | |
7061 | } | |
811072d8 | 7062 | |
b5f852ea NC |
7063 | /* Allocate a segment map big enough to contain |
7064 | all of the sections we have selected. */ | |
00bee008 | 7065 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7066 | amt += section_count * sizeof (asection *); |
a50b1753 | 7067 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7068 | if (map == NULL) |
b34976b6 | 7069 | return FALSE; |
252b5132 RH |
7070 | |
7071 | /* Initialise the fields of the segment map. Default to | |
7072 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7073 | map->next = NULL; |
7074 | map->p_type = segment->p_type; | |
7075 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7076 | map->p_flags_valid = 1; |
55d55ac7 | 7077 | |
9f17e2a6 L |
7078 | /* If the first section in the input segment is removed, there is |
7079 | no need to preserve segment physical address in the corresponding | |
7080 | output segment. */ | |
945c025a | 7081 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7082 | { |
7083 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7084 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7085 | } |
252b5132 RH |
7086 | |
7087 | /* Determine if this segment contains the ELF file header | |
7088 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7089 | map->includes_filehdr = (segment->p_offset == 0 |
7090 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7091 | map->includes_phdrs = 0; |
252b5132 | 7092 | |
0067a569 | 7093 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7094 | { |
bc67d8a6 NC |
7095 | map->includes_phdrs = |
7096 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7097 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7098 | >= ((bfd_vma) iehdr->e_phoff |
7099 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7100 | |
bc67d8a6 | 7101 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 7102 | phdr_included = TRUE; |
252b5132 RH |
7103 | } |
7104 | ||
bc67d8a6 | 7105 | if (section_count == 0) |
252b5132 RH |
7106 | { |
7107 | /* Special segments, such as the PT_PHDR segment, may contain | |
7108 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7109 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7110 | a warning is produced. |
f98450c6 NC |
7111 | There is however the valid use case of embedded systems which |
7112 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7113 | flash memory with zeros. No warning is shown for that case. */ | |
7114 | if (segment->p_type == PT_LOAD | |
7115 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7116 | /* xgettext:c-format */ | |
9793eb77 AM |
7117 | _bfd_error_handler |
7118 | (_("%pB: warning: empty loadable segment detected" | |
7119 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7120 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7121 | |
502794d4 | 7122 | map->p_vaddr_offset = segment->p_vaddr / opb; |
bc67d8a6 | 7123 | map->count = 0; |
c044fabd KH |
7124 | *pointer_to_map = map; |
7125 | pointer_to_map = &map->next; | |
252b5132 RH |
7126 | |
7127 | continue; | |
7128 | } | |
7129 | ||
7130 | /* Now scan the sections in the input BFD again and attempt | |
7131 | to add their corresponding output sections to the segment map. | |
7132 | The problem here is how to handle an output section which has | |
7133 | been moved (ie had its LMA changed). There are four possibilities: | |
7134 | ||
7135 | 1. None of the sections have been moved. | |
7136 | In this case we can continue to use the segment LMA from the | |
7137 | input BFD. | |
7138 | ||
7139 | 2. All of the sections have been moved by the same amount. | |
7140 | In this case we can change the segment's LMA to match the LMA | |
7141 | of the first section. | |
7142 | ||
7143 | 3. Some of the sections have been moved, others have not. | |
7144 | In this case those sections which have not been moved can be | |
7145 | placed in the current segment which will have to have its size, | |
7146 | and possibly its LMA changed, and a new segment or segments will | |
7147 | have to be created to contain the other sections. | |
7148 | ||
b5f852ea | 7149 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7150 | In this case we can change the segment's LMA to match the LMA |
7151 | of the first section and we will have to create a new segment | |
7152 | or segments to contain the other sections. | |
7153 | ||
7154 | In order to save time, we allocate an array to hold the section | |
7155 | pointers that we are interested in. As these sections get assigned | |
7156 | to a segment, they are removed from this array. */ | |
7157 | ||
446f7ed5 AM |
7158 | amt = section_count * sizeof (asection *); |
7159 | sections = (asection **) bfd_malloc (amt); | |
252b5132 | 7160 | if (sections == NULL) |
b34976b6 | 7161 | return FALSE; |
252b5132 RH |
7162 | |
7163 | /* Step One: Scan for segment vs section LMA conflicts. | |
7164 | Also add the sections to the section array allocated above. | |
7165 | Also add the sections to the current segment. In the common | |
7166 | case, where the sections have not been moved, this means that | |
7167 | we have completely filled the segment, and there is nothing | |
7168 | more to do. */ | |
252b5132 | 7169 | isec = 0; |
9933dc52 AM |
7170 | matching_lma = NULL; |
7171 | suggested_lma = NULL; | |
252b5132 | 7172 | |
461c4b2e | 7173 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7174 | section != NULL; |
7175 | section = section->next) | |
252b5132 | 7176 | { |
502794d4 | 7177 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed, opb)) |
c0f7859b | 7178 | { |
bc67d8a6 NC |
7179 | output_section = section->output_section; |
7180 | ||
0067a569 | 7181 | sections[j++] = section; |
252b5132 RH |
7182 | |
7183 | /* The Solaris native linker always sets p_paddr to 0. | |
7184 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7185 | correct value. Note - some backends require that |
7186 | p_paddr be left as zero. */ | |
5c44b38e | 7187 | if (!p_paddr_valid |
4455705d | 7188 | && segment->p_vaddr != 0 |
0067a569 | 7189 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7190 | && isec == 0 |
bc67d8a6 | 7191 | && output_section->lma != 0 |
9933dc52 AM |
7192 | && (align_power (segment->p_vaddr |
7193 | + (map->includes_filehdr | |
7194 | ? iehdr->e_ehsize : 0) | |
7195 | + (map->includes_phdrs | |
7196 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7197 | : 0), | |
66631823 CE |
7198 | output_section->alignment_power * opb) |
7199 | == (output_section->vma * opb))) | |
bc67d8a6 | 7200 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7201 | |
7202 | /* Match up the physical address of the segment with the | |
7203 | LMA address of the output section. */ | |
502794d4 CE |
7204 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7205 | opb) | |
5e8d7549 | 7206 | || IS_COREFILE_NOTE (segment, section) |
0067a569 | 7207 | || (bed->want_p_paddr_set_to_zero |
502794d4 | 7208 | && IS_CONTAINED_BY_VMA (output_section, segment, opb))) |
252b5132 | 7209 | { |
9933dc52 AM |
7210 | if (matching_lma == NULL |
7211 | || output_section->lma < matching_lma->lma) | |
7212 | matching_lma = output_section; | |
252b5132 RH |
7213 | |
7214 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7215 | then it does not overlap any other section within that |
252b5132 | 7216 | segment. */ |
0067a569 AM |
7217 | map->sections[isec++] = output_section; |
7218 | } | |
9933dc52 AM |
7219 | else if (suggested_lma == NULL) |
7220 | suggested_lma = output_section; | |
147d51c2 L |
7221 | |
7222 | if (j == section_count) | |
7223 | break; | |
252b5132 RH |
7224 | } |
7225 | } | |
7226 | ||
bc67d8a6 | 7227 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7228 | |
7229 | /* Step Two: Adjust the physical address of the current segment, | |
7230 | if necessary. */ | |
bc67d8a6 | 7231 | if (isec == section_count) |
252b5132 RH |
7232 | { |
7233 | /* All of the sections fitted within the segment as currently | |
7234 | specified. This is the default case. Add the segment to | |
7235 | the list of built segments and carry on to process the next | |
7236 | program header in the input BFD. */ | |
bc67d8a6 | 7237 | map->count = section_count; |
c044fabd KH |
7238 | *pointer_to_map = map; |
7239 | pointer_to_map = &map->next; | |
08a40648 | 7240 | |
5c44b38e | 7241 | if (p_paddr_valid |
30fe1832 AM |
7242 | && !bed->want_p_paddr_set_to_zero) |
7243 | { | |
7244 | bfd_vma hdr_size = 0; | |
7245 | if (map->includes_filehdr) | |
7246 | hdr_size = iehdr->e_ehsize; | |
7247 | if (map->includes_phdrs) | |
7248 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7249 | ||
7250 | /* Account for padding before the first section in the | |
7251 | segment. */ | |
502794d4 CE |
7252 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
7253 | - matching_lma->lma); | |
30fe1832 | 7254 | } |
08a40648 | 7255 | |
252b5132 RH |
7256 | free (sections); |
7257 | continue; | |
7258 | } | |
252b5132 RH |
7259 | else |
7260 | { | |
9933dc52 AM |
7261 | /* Change the current segment's physical address to match |
7262 | the LMA of the first section that fitted, or if no | |
7263 | section fitted, the first section. */ | |
7264 | if (matching_lma == NULL) | |
7265 | matching_lma = suggested_lma; | |
7266 | ||
66631823 | 7267 | map->p_paddr = matching_lma->lma * opb; |
72730e0c | 7268 | |
bc67d8a6 NC |
7269 | /* Offset the segment physical address from the lma |
7270 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7271 | if (map->includes_phdrs) |
010c8431 | 7272 | { |
9933dc52 AM |
7273 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7274 | ||
7275 | /* iehdr->e_phnum is just an estimate of the number | |
7276 | of program headers that we will need. Make a note | |
7277 | here of the number we used and the segment we chose | |
7278 | to hold these headers, so that we can adjust the | |
7279 | offset when we know the correct value. */ | |
7280 | phdr_adjust_num = iehdr->e_phnum; | |
7281 | phdr_adjust_seg = map; | |
010c8431 | 7282 | } |
252b5132 | 7283 | |
9933dc52 | 7284 | if (map->includes_filehdr) |
bc67d8a6 | 7285 | { |
9933dc52 AM |
7286 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7287 | map->p_paddr -= iehdr->e_ehsize; | |
7288 | /* We've subtracted off the size of headers from the | |
7289 | first section lma, but there may have been some | |
7290 | alignment padding before that section too. Try to | |
7291 | account for that by adjusting the segment lma down to | |
7292 | the same alignment. */ | |
7293 | if (segment->p_align != 0 && segment->p_align < align) | |
7294 | align = segment->p_align; | |
66631823 | 7295 | map->p_paddr &= -(align * opb); |
bc67d8a6 | 7296 | } |
252b5132 RH |
7297 | } |
7298 | ||
7299 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7300 | those that fit to the current segment and removing them from the |
252b5132 RH |
7301 | sections array; but making sure not to leave large gaps. Once all |
7302 | possible sections have been assigned to the current segment it is | |
7303 | added to the list of built segments and if sections still remain | |
7304 | to be assigned, a new segment is constructed before repeating | |
7305 | the loop. */ | |
7306 | isec = 0; | |
7307 | do | |
7308 | { | |
bc67d8a6 | 7309 | map->count = 0; |
9933dc52 | 7310 | suggested_lma = NULL; |
252b5132 RH |
7311 | |
7312 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7313 | for (j = 0; j < section_count; j++) |
252b5132 | 7314 | { |
bc67d8a6 | 7315 | section = sections[j]; |
252b5132 | 7316 | |
bc67d8a6 | 7317 | if (section == NULL) |
252b5132 RH |
7318 | continue; |
7319 | ||
bc67d8a6 | 7320 | output_section = section->output_section; |
252b5132 | 7321 | |
bc67d8a6 | 7322 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7323 | |
502794d4 CE |
7324 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7325 | opb) | |
bc67d8a6 | 7326 | || IS_COREFILE_NOTE (segment, section)) |
252b5132 | 7327 | { |
bc67d8a6 | 7328 | if (map->count == 0) |
252b5132 RH |
7329 | { |
7330 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7331 | the beginning of the segment, then something is |
7332 | wrong. */ | |
9933dc52 AM |
7333 | if (align_power (map->p_paddr |
7334 | + (map->includes_filehdr | |
7335 | ? iehdr->e_ehsize : 0) | |
7336 | + (map->includes_phdrs | |
7337 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7338 | : 0), | |
66631823 CE |
7339 | output_section->alignment_power * opb) |
7340 | != output_section->lma * opb) | |
9aea1e31 | 7341 | goto sorry; |
252b5132 RH |
7342 | } |
7343 | else | |
7344 | { | |
0067a569 | 7345 | asection *prev_sec; |
252b5132 | 7346 | |
bc67d8a6 | 7347 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7348 | |
7349 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7350 | and the start of this section is more than |
7351 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7352 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7353 | maxpagesize) |
caf47ea6 | 7354 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7355 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7356 | > output_section->lma)) |
252b5132 | 7357 | { |
9933dc52 AM |
7358 | if (suggested_lma == NULL) |
7359 | suggested_lma = output_section; | |
252b5132 RH |
7360 | |
7361 | continue; | |
7362 | } | |
7363 | } | |
7364 | ||
bc67d8a6 | 7365 | map->sections[map->count++] = output_section; |
252b5132 RH |
7366 | ++isec; |
7367 | sections[j] = NULL; | |
9933dc52 AM |
7368 | if (segment->p_type == PT_LOAD) |
7369 | section->segment_mark = TRUE; | |
0067a569 | 7370 | } |
9933dc52 AM |
7371 | else if (suggested_lma == NULL) |
7372 | suggested_lma = output_section; | |
252b5132 RH |
7373 | } |
7374 | ||
beab4532 NC |
7375 | /* PR 23932. A corrupt input file may contain sections that cannot |
7376 | be assigned to any segment - because for example they have a | |
9984857c NC |
7377 | negative size - or segments that do not contain any sections. |
7378 | But there are also valid reasons why a segment can be empty. | |
7379 | So allow a count of zero. */ | |
252b5132 RH |
7380 | |
7381 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7382 | *pointer_to_map = map; |
7383 | pointer_to_map = &map->next; | |
252b5132 | 7384 | |
bc67d8a6 | 7385 | if (isec < section_count) |
252b5132 RH |
7386 | { |
7387 | /* We still have not allocated all of the sections to | |
7388 | segments. Create a new segment here, initialise it | |
7389 | and carry on looping. */ | |
00bee008 | 7390 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7391 | amt += section_count * sizeof (asection *); |
5964fc3a | 7392 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7393 | if (map == NULL) |
5ed6aba4 NC |
7394 | { |
7395 | free (sections); | |
7396 | return FALSE; | |
7397 | } | |
252b5132 RH |
7398 | |
7399 | /* Initialise the fields of the segment map. Set the physical | |
7400 | physical address to the LMA of the first section that has | |
7401 | not yet been assigned. */ | |
0067a569 AM |
7402 | map->next = NULL; |
7403 | map->p_type = segment->p_type; | |
7404 | map->p_flags = segment->p_flags; | |
7405 | map->p_flags_valid = 1; | |
66631823 | 7406 | map->p_paddr = suggested_lma->lma * opb; |
5c44b38e | 7407 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7408 | map->includes_filehdr = 0; |
0067a569 | 7409 | map->includes_phdrs = 0; |
252b5132 | 7410 | } |
9984857c NC |
7411 | |
7412 | continue; | |
7413 | sorry: | |
7414 | bfd_set_error (bfd_error_sorry); | |
7415 | free (sections); | |
7416 | return FALSE; | |
252b5132 | 7417 | } |
bc67d8a6 | 7418 | while (isec < section_count); |
252b5132 RH |
7419 | |
7420 | free (sections); | |
7421 | } | |
7422 | ||
12bd6957 | 7423 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7424 | |
7425 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7426 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7427 | the offset if necessary. */ |
7428 | if (phdr_adjust_seg != NULL) | |
7429 | { | |
7430 | unsigned int count; | |
c044fabd | 7431 | |
bc67d8a6 | 7432 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7433 | count++; |
252b5132 | 7434 | |
bc67d8a6 NC |
7435 | if (count > phdr_adjust_num) |
7436 | phdr_adjust_seg->p_paddr | |
7437 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7438 | |
7439 | for (map = map_first; map != NULL; map = map->next) | |
7440 | if (map->p_type == PT_PHDR) | |
7441 | { | |
7442 | bfd_vma adjust | |
7443 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7444 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7445 | break; | |
7446 | } | |
bc67d8a6 | 7447 | } |
c044fabd | 7448 | |
bc67d8a6 | 7449 | #undef SEGMENT_END |
eecdbe52 | 7450 | #undef SECTION_SIZE |
bc67d8a6 NC |
7451 | #undef IS_CONTAINED_BY_VMA |
7452 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7453 | #undef IS_NOTE |
252b5132 | 7454 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7455 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7456 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7457 | #undef INCLUDE_SECTION_IN_SEGMENT |
7458 | #undef SEGMENT_AFTER_SEGMENT | |
7459 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7460 | return TRUE; |
252b5132 RH |
7461 | } |
7462 | ||
84d1d650 L |
7463 | /* Copy ELF program header information. */ |
7464 | ||
7465 | static bfd_boolean | |
7466 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7467 | { | |
7468 | Elf_Internal_Ehdr *iehdr; | |
7469 | struct elf_segment_map *map; | |
7470 | struct elf_segment_map *map_first; | |
7471 | struct elf_segment_map **pointer_to_map; | |
7472 | Elf_Internal_Phdr *segment; | |
7473 | unsigned int i; | |
7474 | unsigned int num_segments; | |
7475 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7476 | bfd_boolean p_paddr_valid; |
502794d4 | 7477 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
84d1d650 L |
7478 | |
7479 | iehdr = elf_elfheader (ibfd); | |
7480 | ||
7481 | map_first = NULL; | |
7482 | pointer_to_map = &map_first; | |
7483 | ||
88967714 AM |
7484 | /* If all the segment p_paddr fields are zero, don't set |
7485 | map->p_paddr_valid. */ | |
7486 | p_paddr_valid = FALSE; | |
84d1d650 | 7487 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7488 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7489 | i < num_segments; | |
7490 | i++, segment++) | |
7491 | if (segment->p_paddr != 0) | |
7492 | { | |
7493 | p_paddr_valid = TRUE; | |
7494 | break; | |
7495 | } | |
7496 | ||
84d1d650 L |
7497 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7498 | i < num_segments; | |
7499 | i++, segment++) | |
7500 | { | |
7501 | asection *section; | |
7502 | unsigned int section_count; | |
986f0783 | 7503 | size_t amt; |
84d1d650 | 7504 | Elf_Internal_Shdr *this_hdr; |
53020534 | 7505 | asection *first_section = NULL; |
a76e6f2f | 7506 | asection *lowest_section; |
84d1d650 | 7507 | |
84d1d650 L |
7508 | /* Compute how many sections are in this segment. */ |
7509 | for (section = ibfd->sections, section_count = 0; | |
7510 | section != NULL; | |
7511 | section = section->next) | |
7512 | { | |
7513 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7514 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7515 | { |
a76e6f2f AM |
7516 | if (first_section == NULL) |
7517 | first_section = section; | |
3271a814 NS |
7518 | section_count++; |
7519 | } | |
84d1d650 L |
7520 | } |
7521 | ||
7522 | /* Allocate a segment map big enough to contain | |
7523 | all of the sections we have selected. */ | |
00bee008 | 7524 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
986f0783 | 7525 | amt += section_count * sizeof (asection *); |
a50b1753 | 7526 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7527 | if (map == NULL) |
7528 | return FALSE; | |
7529 | ||
7530 | /* Initialize the fields of the output segment map with the | |
7531 | input segment. */ | |
7532 | map->next = NULL; | |
7533 | map->p_type = segment->p_type; | |
7534 | map->p_flags = segment->p_flags; | |
7535 | map->p_flags_valid = 1; | |
7536 | map->p_paddr = segment->p_paddr; | |
88967714 | 7537 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7538 | map->p_align = segment->p_align; |
7539 | map->p_align_valid = 1; | |
3271a814 | 7540 | map->p_vaddr_offset = 0; |
84d1d650 | 7541 | |
04c3a755 NS |
7542 | if (map->p_type == PT_GNU_RELRO |
7543 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7544 | { |
7545 | /* The PT_GNU_RELRO segment may contain the first a few | |
7546 | bytes in the .got.plt section even if the whole .got.plt | |
7547 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7548 | change the size of the PT_GNU_RELRO segment. |
7549 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7550 | systems. */ | |
9433b9b1 | 7551 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7552 | map->p_size_valid = 1; |
7553 | } | |
7554 | ||
84d1d650 L |
7555 | /* Determine if this segment contains the ELF file header |
7556 | and if it contains the program headers themselves. */ | |
7557 | map->includes_filehdr = (segment->p_offset == 0 | |
7558 | && segment->p_filesz >= iehdr->e_ehsize); | |
7559 | ||
7560 | map->includes_phdrs = 0; | |
7561 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7562 | { | |
7563 | map->includes_phdrs = | |
7564 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7565 | && (segment->p_offset + segment->p_filesz | |
7566 | >= ((bfd_vma) iehdr->e_phoff | |
7567 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7568 | ||
7569 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7570 | phdr_included = TRUE; | |
7571 | } | |
7572 | ||
bbefd0a9 | 7573 | lowest_section = NULL; |
84d1d650 L |
7574 | if (section_count != 0) |
7575 | { | |
7576 | unsigned int isec = 0; | |
7577 | ||
53020534 | 7578 | for (section = first_section; |
84d1d650 L |
7579 | section != NULL; |
7580 | section = section->next) | |
7581 | { | |
7582 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7583 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7584 | { |
7585 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7586 | if ((section->flags & SEC_ALLOC) != 0) |
7587 | { | |
7588 | bfd_vma seg_off; | |
7589 | ||
bbefd0a9 AM |
7590 | if (lowest_section == NULL |
7591 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7592 | lowest_section = section; |
7593 | ||
a76e6f2f AM |
7594 | /* Section lmas are set up from PT_LOAD header |
7595 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7596 | If this header has a p_paddr that disagrees | |
7597 | with the section lma, flag the p_paddr as | |
7598 | invalid. */ | |
7599 | if ((section->flags & SEC_LOAD) != 0) | |
7600 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7601 | else | |
7602 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
502794d4 | 7603 | if (section->lma * opb - segment->p_paddr != seg_off) |
a76e6f2f AM |
7604 | map->p_paddr_valid = FALSE; |
7605 | } | |
53020534 L |
7606 | if (isec == section_count) |
7607 | break; | |
7608 | } | |
84d1d650 L |
7609 | } |
7610 | } | |
7611 | ||
5d695627 | 7612 | if (section_count == 0) |
502794d4 | 7613 | map->p_vaddr_offset = segment->p_vaddr / opb; |
30fe1832 AM |
7614 | else if (map->p_paddr_valid) |
7615 | { | |
7616 | /* Account for padding before the first section in the segment. */ | |
7617 | bfd_vma hdr_size = 0; | |
7618 | if (map->includes_filehdr) | |
7619 | hdr_size = iehdr->e_ehsize; | |
7620 | if (map->includes_phdrs) | |
7621 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7622 | ||
502794d4 | 7623 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
30fe1832 AM |
7624 | - (lowest_section ? lowest_section->lma : 0)); |
7625 | } | |
a76e6f2f | 7626 | |
84d1d650 L |
7627 | map->count = section_count; |
7628 | *pointer_to_map = map; | |
7629 | pointer_to_map = &map->next; | |
7630 | } | |
7631 | ||
12bd6957 | 7632 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7633 | return TRUE; |
7634 | } | |
7635 | ||
7636 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7637 | information. */ | |
7638 | ||
7639 | static bfd_boolean | |
7640 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7641 | { | |
84d1d650 L |
7642 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7643 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7644 | return TRUE; | |
7645 | ||
7646 | if (elf_tdata (ibfd)->phdr == NULL) | |
7647 | return TRUE; | |
7648 | ||
7649 | if (ibfd->xvec == obfd->xvec) | |
7650 | { | |
cb3ff1e5 NC |
7651 | /* Check to see if any sections in the input BFD |
7652 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7653 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7654 | asection *section, *osec; |
7655 | unsigned int i, num_segments; | |
7656 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7657 | const struct elf_backend_data *bed; |
7658 | ||
7659 | bed = get_elf_backend_data (ibfd); | |
7660 | ||
7661 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7662 | if (bed->want_p_paddr_set_to_zero) | |
7663 | goto rewrite; | |
84d1d650 L |
7664 | |
7665 | /* Initialize the segment mark field. */ | |
7666 | for (section = obfd->sections; section != NULL; | |
7667 | section = section->next) | |
7668 | section->segment_mark = FALSE; | |
7669 | ||
7670 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7671 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7672 | i < num_segments; | |
7673 | i++, segment++) | |
7674 | { | |
5f6999aa NC |
7675 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7676 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7677 | which severly confuses things, so always regenerate the segment | |
7678 | map in this case. */ | |
7679 | if (segment->p_paddr == 0 | |
7680 | && segment->p_memsz == 0 | |
7681 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7682 | goto rewrite; |
5f6999aa | 7683 | |
84d1d650 L |
7684 | for (section = ibfd->sections; |
7685 | section != NULL; section = section->next) | |
7686 | { | |
7687 | /* We mark the output section so that we know it comes | |
7688 | from the input BFD. */ | |
7689 | osec = section->output_section; | |
7690 | if (osec) | |
7691 | osec->segment_mark = TRUE; | |
7692 | ||
7693 | /* Check if this section is covered by the segment. */ | |
7694 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7695 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7696 | { |
7697 | /* FIXME: Check if its output section is changed or | |
7698 | removed. What else do we need to check? */ | |
7699 | if (osec == NULL | |
7700 | || section->flags != osec->flags | |
7701 | || section->lma != osec->lma | |
7702 | || section->vma != osec->vma | |
7703 | || section->size != osec->size | |
7704 | || section->rawsize != osec->rawsize | |
7705 | || section->alignment_power != osec->alignment_power) | |
7706 | goto rewrite; | |
7707 | } | |
7708 | } | |
7709 | } | |
7710 | ||
cb3ff1e5 | 7711 | /* Check to see if any output section do not come from the |
84d1d650 L |
7712 | input BFD. */ |
7713 | for (section = obfd->sections; section != NULL; | |
7714 | section = section->next) | |
7715 | { | |
535b785f | 7716 | if (!section->segment_mark) |
84d1d650 L |
7717 | goto rewrite; |
7718 | else | |
7719 | section->segment_mark = FALSE; | |
7720 | } | |
7721 | ||
7722 | return copy_elf_program_header (ibfd, obfd); | |
7723 | } | |
7724 | ||
dc1e8a47 | 7725 | rewrite: |
f1d85785 L |
7726 | if (ibfd->xvec == obfd->xvec) |
7727 | { | |
7728 | /* When rewriting program header, set the output maxpagesize to | |
7729 | the maximum alignment of input PT_LOAD segments. */ | |
7730 | Elf_Internal_Phdr *segment; | |
7731 | unsigned int i; | |
7732 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7733 | bfd_vma maxpagesize = 0; | |
7734 | ||
7735 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7736 | i < num_segments; | |
7737 | i++, segment++) | |
7738 | if (segment->p_type == PT_LOAD | |
7739 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7740 | { |
7741 | /* PR 17512: file: f17299af. */ | |
7742 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7743 | /* xgettext:c-format */ |
2dcf00ce AM |
7744 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7745 | PRIx64 " is too large"), | |
7746 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7747 | else |
7748 | maxpagesize = segment->p_align; | |
7749 | } | |
f1d85785 L |
7750 | |
7751 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7752 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7753 | } | |
7754 | ||
84d1d650 L |
7755 | return rewrite_elf_program_header (ibfd, obfd); |
7756 | } | |
7757 | ||
ccd2ec6a L |
7758 | /* Initialize private output section information from input section. */ |
7759 | ||
7760 | bfd_boolean | |
7761 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7762 | asection *isec, | |
7763 | bfd *obfd, | |
7764 | asection *osec, | |
7765 | struct bfd_link_info *link_info) | |
7766 | ||
7767 | { | |
7768 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7769 | bfd_boolean final_link = (link_info != NULL |
7770 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7771 | |
7772 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7773 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7774 | return TRUE; | |
7775 | ||
ba85c43e NC |
7776 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7777 | ||
8c803a2d AM |
7778 | /* If this is a known ABI section, ELF section type and flags may |
7779 | have been set up when OSEC was created. For normal sections we | |
7780 | allow the user to override the type and flags other than | |
7781 | SHF_MASKOS and SHF_MASKPROC. */ | |
7782 | if (elf_section_type (osec) == SHT_PROGBITS | |
7783 | || elf_section_type (osec) == SHT_NOTE | |
7784 | || elf_section_type (osec) == SHT_NOBITS) | |
7785 | elf_section_type (osec) = SHT_NULL; | |
7786 | /* For objcopy and relocatable link, copy the ELF section type from | |
7787 | the input file if the BFD section flags are the same. (If they | |
7788 | are different the user may be doing something like | |
7789 | "objcopy --set-section-flags .text=alloc,data".) For a final | |
7790 | link allow some flags that the linker clears to differ. */ | |
42bb2e33 | 7791 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7792 | && (osec->flags == isec->flags |
7793 | || (final_link | |
7794 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7795 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7796 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7797 | |
7798 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
8c803a2d AM |
7799 | elf_section_flags (osec) = (elf_section_flags (isec) |
7800 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7801 | |
a91e1603 | 7802 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7803 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7804 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7805 | elf_section_data (osec)->this_hdr.sh_info |
7806 | = elf_section_data (isec)->this_hdr.sh_info; | |
7807 | ||
ccd2ec6a L |
7808 | /* Set things up for objcopy and relocatable link. The output |
7809 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7810 | to the input group members. Ignore linker created group section. | |
7811 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7812 | if ((link_info == NULL |
7813 | || !link_info->resolve_section_groups) | |
7814 | && (elf_sec_group (isec) == NULL | |
7815 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7816 | { |
7bdf4127 AB |
7817 | if (elf_section_flags (isec) & SHF_GROUP) |
7818 | elf_section_flags (osec) |= SHF_GROUP; | |
7819 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7820 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7821 | } |
7822 | ||
7bdf4127 AB |
7823 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7824 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7825 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7826 | & SHF_COMPRESSED); | |
7827 | ||
ccd2ec6a L |
7828 | ihdr = &elf_section_data (isec)->this_hdr; |
7829 | ||
7830 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7831 | don't use the output section of the linked-to section since it | |
7832 | may be NULL at this point. */ | |
7833 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7834 | { | |
7835 | ohdr = &elf_section_data (osec)->this_hdr; | |
7836 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7837 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7838 | } | |
7839 | ||
7840 | osec->use_rela_p = isec->use_rela_p; | |
7841 | ||
7842 | return TRUE; | |
7843 | } | |
7844 | ||
252b5132 RH |
7845 | /* Copy private section information. This copies over the entsize |
7846 | field, and sometimes the info field. */ | |
7847 | ||
b34976b6 | 7848 | bfd_boolean |
217aa764 AM |
7849 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7850 | asection *isec, | |
7851 | bfd *obfd, | |
7852 | asection *osec) | |
252b5132 RH |
7853 | { |
7854 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7855 | ||
7856 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7857 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7858 | return TRUE; |
252b5132 | 7859 | |
252b5132 RH |
7860 | ihdr = &elf_section_data (isec)->this_hdr; |
7861 | ohdr = &elf_section_data (osec)->this_hdr; | |
7862 | ||
7863 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7864 | ||
7865 | if (ihdr->sh_type == SHT_SYMTAB | |
7866 | || ihdr->sh_type == SHT_DYNSYM | |
7867 | || ihdr->sh_type == SHT_GNU_verneed | |
7868 | || ihdr->sh_type == SHT_GNU_verdef) | |
7869 | ohdr->sh_info = ihdr->sh_info; | |
7870 | ||
ccd2ec6a L |
7871 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7872 | NULL); | |
252b5132 RH |
7873 | } |
7874 | ||
d0bf826b AM |
7875 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7876 | necessary if we are removing either the SHT_GROUP section or any of | |
7877 | the group member sections. DISCARDED is the value that a section's | |
7878 | output_section has if the section will be discarded, NULL when this | |
7879 | function is called from objcopy, bfd_abs_section_ptr when called | |
7880 | from the linker. */ | |
80fccad2 BW |
7881 | |
7882 | bfd_boolean | |
d0bf826b | 7883 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7884 | { |
30288845 AM |
7885 | asection *isec; |
7886 | ||
30288845 | 7887 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7888 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7889 | { |
7890 | asection *first = elf_next_in_group (isec); | |
7891 | asection *s = first; | |
d0bf826b AM |
7892 | bfd_size_type removed = 0; |
7893 | ||
30288845 AM |
7894 | while (s != NULL) |
7895 | { | |
415f38a6 AM |
7896 | /* If this member section is being output but the |
7897 | SHT_GROUP section is not, then clear the group info | |
7898 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7899 | if (s->output_section != discarded |
7900 | && isec->output_section == discarded) | |
30288845 AM |
7901 | { |
7902 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7903 | elf_group_name (s->output_section) = NULL; | |
7904 | } | |
3349112e | 7905 | else |
6e5e9d58 AM |
7906 | { |
7907 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
3349112e L |
7908 | if (s->output_section == discarded |
7909 | && isec->output_section != discarded) | |
7910 | { | |
7911 | /* Conversely, if the member section is not being | |
7912 | output but the SHT_GROUP section is, then adjust | |
7913 | its size. */ | |
7914 | removed += 4; | |
7915 | if (elf_sec->rel.hdr != NULL | |
7916 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7917 | removed += 4; | |
7918 | if (elf_sec->rela.hdr != NULL | |
7919 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7920 | removed += 4; | |
7921 | } | |
7922 | else | |
7923 | { | |
7924 | /* Also adjust for zero-sized relocation member | |
7925 | section. */ | |
7926 | if (elf_sec->rel.hdr != NULL | |
7927 | && elf_sec->rel.hdr->sh_size == 0) | |
7928 | removed += 4; | |
7929 | if (elf_sec->rela.hdr != NULL | |
7930 | && elf_sec->rela.hdr->sh_size == 0) | |
7931 | removed += 4; | |
7932 | } | |
6e5e9d58 | 7933 | } |
30288845 AM |
7934 | s = elf_next_in_group (s); |
7935 | if (s == first) | |
7936 | break; | |
7937 | } | |
d0bf826b AM |
7938 | if (removed != 0) |
7939 | { | |
7940 | if (discarded != NULL) | |
7941 | { | |
7942 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7943 | adjust the input section size. */ |
d0bf826b AM |
7944 | if (isec->rawsize == 0) |
7945 | isec->rawsize = isec->size; | |
7946 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7947 | if (isec->size <= 4) |
7948 | { | |
7949 | isec->size = 0; | |
7950 | isec->flags |= SEC_EXCLUDE; | |
7951 | } | |
d0bf826b AM |
7952 | } |
7953 | else | |
7954 | { | |
7955 | /* Adjust the output section size when called from | |
7956 | objcopy. */ | |
7957 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7958 | if (isec->output_section->size <= 4) |
7959 | { | |
7960 | isec->output_section->size = 0; | |
7961 | isec->output_section->flags |= SEC_EXCLUDE; | |
7962 | } | |
d0bf826b AM |
7963 | } |
7964 | } | |
30288845 AM |
7965 | } |
7966 | ||
80fccad2 BW |
7967 | return TRUE; |
7968 | } | |
7969 | ||
d0bf826b AM |
7970 | /* Copy private header information. */ |
7971 | ||
7972 | bfd_boolean | |
7973 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7974 | { | |
7975 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7976 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7977 | return TRUE; | |
7978 | ||
7979 | /* Copy over private BFD data if it has not already been copied. | |
7980 | This must be done here, rather than in the copy_private_bfd_data | |
7981 | entry point, because the latter is called after the section | |
7982 | contents have been set, which means that the program headers have | |
7983 | already been worked out. */ | |
12bd6957 | 7984 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7985 | { |
7986 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7987 | return FALSE; | |
7988 | } | |
7989 | ||
7990 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7991 | } | |
7992 | ||
252b5132 RH |
7993 | /* Copy private symbol information. If this symbol is in a section |
7994 | which we did not map into a BFD section, try to map the section | |
7995 | index correctly. We use special macro definitions for the mapped | |
7996 | section indices; these definitions are interpreted by the | |
7997 | swap_out_syms function. */ | |
7998 | ||
9ad5cbcf AM |
7999 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
8000 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
8001 | #define MAP_STRTAB (SHN_HIOS + 3) | |
8002 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
8003 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 8004 | |
b34976b6 | 8005 | bfd_boolean |
217aa764 AM |
8006 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
8007 | asymbol *isymarg, | |
8008 | bfd *obfd, | |
8009 | asymbol *osymarg) | |
252b5132 RH |
8010 | { |
8011 | elf_symbol_type *isym, *osym; | |
8012 | ||
8013 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8014 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 8015 | return TRUE; |
252b5132 | 8016 | |
c1229f84 AM |
8017 | isym = elf_symbol_from (isymarg); |
8018 | osym = elf_symbol_from (osymarg); | |
252b5132 RH |
8019 | |
8020 | if (isym != NULL | |
8424d8f5 | 8021 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
8022 | && osym != NULL |
8023 | && bfd_is_abs_section (isym->symbol.section)) | |
8024 | { | |
8025 | unsigned int shndx; | |
8026 | ||
8027 | shndx = isym->internal_elf_sym.st_shndx; | |
8028 | if (shndx == elf_onesymtab (ibfd)) | |
8029 | shndx = MAP_ONESYMTAB; | |
8030 | else if (shndx == elf_dynsymtab (ibfd)) | |
8031 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 8032 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 8033 | shndx = MAP_STRTAB; |
12bd6957 | 8034 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 8035 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 8036 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 8037 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
8038 | osym->internal_elf_sym.st_shndx = shndx; |
8039 | } | |
8040 | ||
b34976b6 | 8041 | return TRUE; |
252b5132 RH |
8042 | } |
8043 | ||
8044 | /* Swap out the symbols. */ | |
8045 | ||
b34976b6 | 8046 | static bfd_boolean |
217aa764 | 8047 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8048 | struct elf_strtab_hash **sttp, |
217aa764 | 8049 | int relocatable_p) |
252b5132 | 8050 | { |
9c5bfbb7 | 8051 | const struct elf_backend_data *bed; |
1f4361a7 | 8052 | unsigned int symcount; |
079e9a2f | 8053 | asymbol **syms; |
ef10c3ac | 8054 | struct elf_strtab_hash *stt; |
079e9a2f | 8055 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8056 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8057 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8058 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8059 | bfd_byte *outbound_syms; |
8060 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
8061 | unsigned long outbound_syms_index; |
8062 | unsigned long outbound_shndx_index; | |
1f4361a7 | 8063 | unsigned int idx; |
12bd6957 | 8064 | unsigned int num_locals; |
1f4361a7 | 8065 | size_t amt; |
174fd7f9 | 8066 | bfd_boolean name_local_sections; |
252b5132 | 8067 | |
12bd6957 | 8068 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 8069 | return FALSE; |
252b5132 | 8070 | |
c044fabd | 8071 | /* Dump out the symtabs. */ |
ef10c3ac | 8072 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8073 | if (stt == NULL) |
b34976b6 | 8074 | return FALSE; |
252b5132 | 8075 | |
079e9a2f AM |
8076 | bed = get_elf_backend_data (abfd); |
8077 | symcount = bfd_get_symcount (abfd); | |
8078 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8079 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8080 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8081 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8082 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8083 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8084 | |
8085 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8086 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8087 | ||
ef10c3ac | 8088 | /* Allocate buffer to swap out the .strtab section. */ |
1f4361a7 AM |
8089 | if (_bfd_mul_overflow (symcount + 1, sizeof (*symstrtab), &amt) |
8090 | || (symstrtab = (struct elf_sym_strtab *) bfd_malloc (amt)) == NULL) | |
ef10c3ac | 8091 | { |
1f4361a7 | 8092 | bfd_set_error (bfd_error_no_memory); |
ef10c3ac L |
8093 | _bfd_elf_strtab_free (stt); |
8094 | return FALSE; | |
8095 | } | |
8096 | ||
1f4361a7 AM |
8097 | if (_bfd_mul_overflow (symcount + 1, bed->s->sizeof_sym, &amt) |
8098 | || (outbound_syms = (bfd_byte *) bfd_alloc (abfd, amt)) == NULL) | |
5ed6aba4 | 8099 | { |
1f4361a7 AM |
8100 | error_no_mem: |
8101 | bfd_set_error (bfd_error_no_memory); | |
8102 | error_return: | |
ef10c3ac | 8103 | free (symstrtab); |
1f4361a7 | 8104 | _bfd_elf_strtab_free (stt); |
5ed6aba4 NC |
8105 | return FALSE; |
8106 | } | |
217aa764 | 8107 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8108 | outbound_syms_index = 0; |
252b5132 | 8109 | |
9ad5cbcf | 8110 | outbound_shndx = NULL; |
ef10c3ac | 8111 | outbound_shndx_index = 0; |
6a40cf0c NC |
8112 | |
8113 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8114 | { |
6a40cf0c NC |
8115 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8116 | if (symtab_shndx_hdr->sh_name != 0) | |
8117 | { | |
1f4361a7 AM |
8118 | if (_bfd_mul_overflow (symcount + 1, |
8119 | sizeof (Elf_External_Sym_Shndx), &amt)) | |
8120 | goto error_no_mem; | |
8121 | outbound_shndx = (bfd_byte *) bfd_zalloc (abfd, amt); | |
6a40cf0c NC |
8122 | if (outbound_shndx == NULL) |
8123 | goto error_return; | |
5ed6aba4 | 8124 | |
6a40cf0c NC |
8125 | symtab_shndx_hdr->contents = outbound_shndx; |
8126 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8127 | symtab_shndx_hdr->sh_size = amt; | |
8128 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8129 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8130 | } | |
8131 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8132 | } |
8133 | ||
589e6347 | 8134 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8135 | { |
8136 | /* Fill in zeroth symbol and swap it out. */ | |
8137 | Elf_Internal_Sym sym; | |
8138 | sym.st_name = 0; | |
8139 | sym.st_value = 0; | |
8140 | sym.st_size = 0; | |
8141 | sym.st_info = 0; | |
8142 | sym.st_other = 0; | |
8143 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8144 | sym.st_target_internal = 0; |
ef10c3ac L |
8145 | symstrtab[0].sym = sym; |
8146 | symstrtab[0].dest_index = outbound_syms_index; | |
8147 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8148 | outbound_syms_index++; | |
9ad5cbcf | 8149 | if (outbound_shndx != NULL) |
ef10c3ac | 8150 | outbound_shndx_index++; |
079e9a2f | 8151 | } |
252b5132 | 8152 | |
174fd7f9 RS |
8153 | name_local_sections |
8154 | = (bed->elf_backend_name_local_section_symbols | |
8155 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8156 | ||
079e9a2f | 8157 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8158 | for (idx = 0; idx < symcount;) |
252b5132 | 8159 | { |
252b5132 | 8160 | Elf_Internal_Sym sym; |
079e9a2f AM |
8161 | bfd_vma value = syms[idx]->value; |
8162 | elf_symbol_type *type_ptr; | |
8163 | flagword flags = syms[idx]->flags; | |
8164 | int type; | |
252b5132 | 8165 | |
174fd7f9 RS |
8166 | if (!name_local_sections |
8167 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8168 | { |
8169 | /* Local section symbols have no name. */ | |
ef10c3ac | 8170 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8171 | } |
8172 | else | |
8173 | { | |
ef10c3ac L |
8174 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8175 | to get the final offset for st_name. */ | |
8176 | sym.st_name | |
8177 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
8178 | FALSE); | |
079e9a2f | 8179 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8180 | goto error_return; |
079e9a2f | 8181 | } |
252b5132 | 8182 | |
c1229f84 | 8183 | type_ptr = elf_symbol_from (syms[idx]); |
252b5132 | 8184 | |
079e9a2f AM |
8185 | if ((flags & BSF_SECTION_SYM) == 0 |
8186 | && bfd_is_com_section (syms[idx]->section)) | |
8187 | { | |
8188 | /* ELF common symbols put the alignment into the `value' field, | |
8189 | and the size into the `size' field. This is backwards from | |
8190 | how BFD handles it, so reverse it here. */ | |
8191 | sym.st_size = value; | |
8192 | if (type_ptr == NULL | |
8193 | || type_ptr->internal_elf_sym.st_value == 0) | |
8194 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8195 | else | |
8196 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8197 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8198 | (abfd, syms[idx]->section); | |
8199 | } | |
8200 | else | |
8201 | { | |
8202 | asection *sec = syms[idx]->section; | |
cb33740c | 8203 | unsigned int shndx; |
252b5132 | 8204 | |
079e9a2f AM |
8205 | if (sec->output_section) |
8206 | { | |
8207 | value += sec->output_offset; | |
8208 | sec = sec->output_section; | |
8209 | } | |
589e6347 | 8210 | |
079e9a2f AM |
8211 | /* Don't add in the section vma for relocatable output. */ |
8212 | if (! relocatable_p) | |
8213 | value += sec->vma; | |
8214 | sym.st_value = value; | |
8215 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8216 | ||
8217 | if (bfd_is_abs_section (sec) | |
8218 | && type_ptr != NULL | |
8219 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8220 | { | |
8221 | /* This symbol is in a real ELF section which we did | |
8222 | not create as a BFD section. Undo the mapping done | |
8223 | by copy_private_symbol_data. */ | |
8224 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8225 | switch (shndx) | |
8226 | { | |
8227 | case MAP_ONESYMTAB: | |
8228 | shndx = elf_onesymtab (abfd); | |
8229 | break; | |
8230 | case MAP_DYNSYMTAB: | |
8231 | shndx = elf_dynsymtab (abfd); | |
8232 | break; | |
8233 | case MAP_STRTAB: | |
12bd6957 | 8234 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8235 | break; |
8236 | case MAP_SHSTRTAB: | |
12bd6957 | 8237 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8238 | break; |
9ad5cbcf | 8239 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8240 | if (elf_symtab_shndx_list (abfd)) |
8241 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8242 | break; |
00e49dff NC |
8243 | case SHN_COMMON: |
8244 | case SHN_ABS: | |
15bc576a | 8245 | shndx = SHN_ABS; |
079e9a2f | 8246 | break; |
00e49dff NC |
8247 | default: |
8248 | if (shndx >= SHN_LOPROC && shndx <= SHN_HIOS) | |
8249 | { | |
8250 | if (bed->symbol_section_index) | |
8251 | shndx = bed->symbol_section_index (abfd, type_ptr); | |
8252 | /* Otherwise just leave the index alone. */ | |
8253 | } | |
8254 | else | |
8255 | { | |
8256 | if (shndx > SHN_HIOS && shndx < SHN_HIRESERVE) | |
8257 | _bfd_error_handler (_("%pB: \ | |
8258 | Unable to handle section index %x in ELF symbol. Using ABS instead."), | |
8259 | abfd, shndx); | |
8260 | shndx = SHN_ABS; | |
8261 | } | |
8262 | break; | |
079e9a2f AM |
8263 | } |
8264 | } | |
8265 | else | |
8266 | { | |
8267 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8268 | |
cb33740c | 8269 | if (shndx == SHN_BAD) |
079e9a2f AM |
8270 | { |
8271 | asection *sec2; | |
8272 | ||
8273 | /* Writing this would be a hell of a lot easier if | |
8274 | we had some decent documentation on bfd, and | |
8275 | knew what to expect of the library, and what to | |
8276 | demand of applications. For example, it | |
8277 | appears that `objcopy' might not set the | |
8278 | section of a symbol to be a section that is | |
8279 | actually in the output file. */ | |
8280 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8281 | if (sec2 != NULL) |
8282 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8283 | if (shndx == SHN_BAD) | |
589e6347 | 8284 | { |
695344c0 | 8285 | /* xgettext:c-format */ |
9793eb77 AM |
8286 | _bfd_error_handler |
8287 | (_("unable to find equivalent output section" | |
8288 | " for symbol '%s' from section '%s'"), | |
8289 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8290 | sec->name); | |
811072d8 | 8291 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8292 | goto error_return; |
589e6347 | 8293 | } |
079e9a2f AM |
8294 | } |
8295 | } | |
252b5132 | 8296 | |
079e9a2f AM |
8297 | sym.st_shndx = shndx; |
8298 | } | |
252b5132 | 8299 | |
13ae64f3 JJ |
8300 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8301 | type = STT_TLS; | |
d8045f23 NC |
8302 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8303 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8304 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8305 | type = STT_FUNC; |
8306 | else if ((flags & BSF_OBJECT) != 0) | |
8307 | type = STT_OBJECT; | |
d9352518 DB |
8308 | else if ((flags & BSF_RELC) != 0) |
8309 | type = STT_RELC; | |
8310 | else if ((flags & BSF_SRELC) != 0) | |
8311 | type = STT_SRELC; | |
079e9a2f AM |
8312 | else |
8313 | type = STT_NOTYPE; | |
252b5132 | 8314 | |
13ae64f3 JJ |
8315 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8316 | type = STT_TLS; | |
8317 | ||
589e6347 | 8318 | /* Processor-specific types. */ |
079e9a2f AM |
8319 | if (type_ptr != NULL |
8320 | && bed->elf_backend_get_symbol_type) | |
8321 | type = ((*bed->elf_backend_get_symbol_type) | |
8322 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8323 | |
079e9a2f AM |
8324 | if (flags & BSF_SECTION_SYM) |
8325 | { | |
8326 | if (flags & BSF_GLOBAL) | |
8327 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8328 | else | |
8329 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8330 | } | |
8331 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8332 | { |
b8871f35 L |
8333 | if (type != STT_TLS) |
8334 | { | |
8335 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8336 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8337 | ? STT_COMMON : STT_OBJECT); | |
8338 | else | |
8339 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8340 | ? STT_COMMON : STT_OBJECT); | |
8341 | } | |
8342 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8343 | } |
079e9a2f AM |
8344 | else if (bfd_is_und_section (syms[idx]->section)) |
8345 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8346 | ? STB_WEAK | |
8347 | : STB_GLOBAL), | |
8348 | type); | |
8349 | else if (flags & BSF_FILE) | |
8350 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8351 | else | |
8352 | { | |
8353 | int bind = STB_LOCAL; | |
252b5132 | 8354 | |
079e9a2f AM |
8355 | if (flags & BSF_LOCAL) |
8356 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8357 | else if (flags & BSF_GNU_UNIQUE) |
8358 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8359 | else if (flags & BSF_WEAK) |
8360 | bind = STB_WEAK; | |
8361 | else if (flags & BSF_GLOBAL) | |
8362 | bind = STB_GLOBAL; | |
252b5132 | 8363 | |
079e9a2f AM |
8364 | sym.st_info = ELF_ST_INFO (bind, type); |
8365 | } | |
252b5132 | 8366 | |
079e9a2f | 8367 | if (type_ptr != NULL) |
35fc36a8 RS |
8368 | { |
8369 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8370 | sym.st_target_internal | |
8371 | = type_ptr->internal_elf_sym.st_target_internal; | |
8372 | } | |
079e9a2f | 8373 | else |
35fc36a8 RS |
8374 | { |
8375 | sym.st_other = 0; | |
8376 | sym.st_target_internal = 0; | |
8377 | } | |
252b5132 | 8378 | |
ef10c3ac L |
8379 | idx++; |
8380 | symstrtab[idx].sym = sym; | |
8381 | symstrtab[idx].dest_index = outbound_syms_index; | |
8382 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8383 | ||
8384 | outbound_syms_index++; | |
9ad5cbcf | 8385 | if (outbound_shndx != NULL) |
ef10c3ac L |
8386 | outbound_shndx_index++; |
8387 | } | |
8388 | ||
8389 | /* Finalize the .strtab section. */ | |
8390 | _bfd_elf_strtab_finalize (stt); | |
8391 | ||
8392 | /* Swap out the .strtab section. */ | |
8393 | for (idx = 0; idx <= symcount; idx++) | |
8394 | { | |
8395 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8396 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8397 | elfsym->sym.st_name = 0; | |
8398 | else | |
8399 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8400 | elfsym->sym.st_name); | |
8401 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8402 | (outbound_syms | |
8403 | + (elfsym->dest_index | |
8404 | * bed->s->sizeof_sym)), | |
8405 | (outbound_shndx | |
8406 | + (elfsym->destshndx_index | |
8407 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8408 | } |
ef10c3ac | 8409 | free (symstrtab); |
252b5132 | 8410 | |
079e9a2f | 8411 | *sttp = stt; |
ef10c3ac | 8412 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8413 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8414 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8415 | symstrtab_hdr->sh_addr = 0; |
8416 | symstrtab_hdr->sh_entsize = 0; | |
8417 | symstrtab_hdr->sh_link = 0; | |
8418 | symstrtab_hdr->sh_info = 0; | |
8419 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8420 | |
b34976b6 | 8421 | return TRUE; |
252b5132 RH |
8422 | } |
8423 | ||
8424 | /* Return the number of bytes required to hold the symtab vector. | |
8425 | ||
8426 | Note that we base it on the count plus 1, since we will null terminate | |
8427 | the vector allocated based on this size. However, the ELF symbol table | |
8428 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8429 | ||
8430 | long | |
217aa764 | 8431 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8432 | { |
3a551c7a | 8433 | bfd_size_type symcount; |
252b5132 RH |
8434 | long symtab_size; |
8435 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8436 | ||
8437 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8438 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8439 | { |
8440 | bfd_set_error (bfd_error_file_too_big); | |
8441 | return -1; | |
8442 | } | |
b5f386d5 AM |
8443 | symtab_size = symcount * (sizeof (asymbol *)); |
8444 | if (symcount == 0) | |
8445 | symtab_size = sizeof (asymbol *); | |
8446 | else if (!bfd_write_p (abfd)) | |
8447 | { | |
8448 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8449 | ||
8450 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8451 | { | |
8452 | bfd_set_error (bfd_error_file_truncated); | |
8453 | return -1; | |
8454 | } | |
8455 | } | |
252b5132 RH |
8456 | |
8457 | return symtab_size; | |
8458 | } | |
8459 | ||
8460 | long | |
217aa764 | 8461 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8462 | { |
3a551c7a | 8463 | bfd_size_type symcount; |
252b5132 RH |
8464 | long symtab_size; |
8465 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8466 | ||
8467 | if (elf_dynsymtab (abfd) == 0) | |
8468 | { | |
8469 | bfd_set_error (bfd_error_invalid_operation); | |
8470 | return -1; | |
8471 | } | |
8472 | ||
8473 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8474 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8475 | { |
8476 | bfd_set_error (bfd_error_file_too_big); | |
8477 | return -1; | |
8478 | } | |
b5f386d5 AM |
8479 | symtab_size = symcount * (sizeof (asymbol *)); |
8480 | if (symcount == 0) | |
8481 | symtab_size = sizeof (asymbol *); | |
8482 | else if (!bfd_write_p (abfd)) | |
8483 | { | |
8484 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8485 | ||
8486 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8487 | { | |
8488 | bfd_set_error (bfd_error_file_truncated); | |
8489 | return -1; | |
8490 | } | |
8491 | } | |
252b5132 RH |
8492 | |
8493 | return symtab_size; | |
8494 | } | |
8495 | ||
8496 | long | |
3c568b8a | 8497 | _bfd_elf_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 8498 | { |
b5f386d5 | 8499 | if (asect->reloc_count != 0 && !bfd_write_p (abfd)) |
3c568b8a AM |
8500 | { |
8501 | /* Sanity check reloc section size. */ | |
8502 | struct bfd_elf_section_data *d = elf_section_data (asect); | |
8503 | Elf_Internal_Shdr *rel_hdr = &d->this_hdr; | |
8504 | bfd_size_type ext_rel_size = rel_hdr->sh_size; | |
8505 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8506 | ||
8507 | if (filesize != 0 && ext_rel_size > filesize) | |
8508 | { | |
8509 | bfd_set_error (bfd_error_file_truncated); | |
8510 | return -1; | |
8511 | } | |
8512 | } | |
8513 | ||
242a1159 | 8514 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8515 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8516 | { | |
8517 | bfd_set_error (bfd_error_file_too_big); | |
8518 | return -1; | |
8519 | } | |
242a1159 | 8520 | #endif |
252b5132 RH |
8521 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8522 | } | |
8523 | ||
8524 | /* Canonicalize the relocs. */ | |
8525 | ||
8526 | long | |
217aa764 AM |
8527 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8528 | sec_ptr section, | |
8529 | arelent **relptr, | |
8530 | asymbol **symbols) | |
252b5132 RH |
8531 | { |
8532 | arelent *tblptr; | |
8533 | unsigned int i; | |
9c5bfbb7 | 8534 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8535 | |
b34976b6 | 8536 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8537 | return -1; |
8538 | ||
8539 | tblptr = section->relocation; | |
8540 | for (i = 0; i < section->reloc_count; i++) | |
8541 | *relptr++ = tblptr++; | |
8542 | ||
8543 | *relptr = NULL; | |
8544 | ||
8545 | return section->reloc_count; | |
8546 | } | |
8547 | ||
8548 | long | |
6cee3f79 | 8549 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8550 | { |
9c5bfbb7 | 8551 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8552 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8553 | |
8554 | if (symcount >= 0) | |
ed48ec2e | 8555 | abfd->symcount = symcount; |
252b5132 RH |
8556 | return symcount; |
8557 | } | |
8558 | ||
8559 | long | |
217aa764 AM |
8560 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8561 | asymbol **allocation) | |
252b5132 | 8562 | { |
9c5bfbb7 | 8563 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8564 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8565 | |
8566 | if (symcount >= 0) | |
ed48ec2e | 8567 | abfd->dynsymcount = symcount; |
1f70368c | 8568 | return symcount; |
252b5132 RH |
8569 | } |
8570 | ||
8615f3f2 AM |
8571 | /* Return the size required for the dynamic reloc entries. Any loadable |
8572 | section that was actually installed in the BFD, and has type SHT_REL | |
8573 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8574 | dynamic reloc section. */ | |
252b5132 RH |
8575 | |
8576 | long | |
217aa764 | 8577 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8578 | { |
3c568b8a | 8579 | bfd_size_type count, ext_rel_size; |
252b5132 RH |
8580 | asection *s; |
8581 | ||
8582 | if (elf_dynsymtab (abfd) == 0) | |
8583 | { | |
8584 | bfd_set_error (bfd_error_invalid_operation); | |
8585 | return -1; | |
8586 | } | |
8587 | ||
3a551c7a | 8588 | count = 1; |
3c568b8a | 8589 | ext_rel_size = 0; |
252b5132 | 8590 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8591 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8592 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8593 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a | 8594 | { |
3c568b8a AM |
8595 | ext_rel_size += s->size; |
8596 | if (ext_rel_size < s->size) | |
8597 | { | |
8598 | bfd_set_error (bfd_error_file_truncated); | |
8599 | return -1; | |
8600 | } | |
3a551c7a AM |
8601 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; |
8602 | if (count > LONG_MAX / sizeof (arelent *)) | |
8603 | { | |
8604 | bfd_set_error (bfd_error_file_too_big); | |
8605 | return -1; | |
8606 | } | |
8607 | } | |
b5f386d5 | 8608 | if (count > 1 && !bfd_write_p (abfd)) |
3c568b8a AM |
8609 | { |
8610 | /* Sanity check reloc section sizes. */ | |
8611 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8612 | if (filesize != 0 && ext_rel_size > filesize) | |
8613 | { | |
8614 | bfd_set_error (bfd_error_file_truncated); | |
8615 | return -1; | |
8616 | } | |
8617 | } | |
3a551c7a | 8618 | return count * sizeof (arelent *); |
252b5132 RH |
8619 | } |
8620 | ||
8615f3f2 AM |
8621 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8622 | dynamic relocations as a single block, although they are actually | |
8623 | associated with particular sections; the interface, which was | |
8624 | designed for SunOS style shared libraries, expects that there is only | |
8625 | one set of dynamic relocs. Any loadable section that was actually | |
8626 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8627 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8628 | |
8629 | long | |
217aa764 AM |
8630 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8631 | arelent **storage, | |
8632 | asymbol **syms) | |
252b5132 | 8633 | { |
217aa764 | 8634 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8635 | asection *s; |
8636 | long ret; | |
8637 | ||
8638 | if (elf_dynsymtab (abfd) == 0) | |
8639 | { | |
8640 | bfd_set_error (bfd_error_invalid_operation); | |
8641 | return -1; | |
8642 | } | |
8643 | ||
8644 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8645 | ret = 0; | |
8646 | for (s = abfd->sections; s != NULL; s = s->next) | |
8647 | { | |
266b05cf | 8648 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8649 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8650 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8651 | { | |
8652 | arelent *p; | |
8653 | long count, i; | |
8654 | ||
b34976b6 | 8655 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8656 | return -1; |
eea6121a | 8657 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8658 | p = s->relocation; |
8659 | for (i = 0; i < count; i++) | |
8660 | *storage++ = p++; | |
8661 | ret += count; | |
8662 | } | |
8663 | } | |
8664 | ||
8665 | *storage = NULL; | |
8666 | ||
8667 | return ret; | |
8668 | } | |
8669 | \f | |
8670 | /* Read in the version information. */ | |
8671 | ||
b34976b6 | 8672 | bfd_boolean |
fc0e6df6 | 8673 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8674 | { |
8675 | bfd_byte *contents = NULL; | |
fc0e6df6 | 8676 | unsigned int freeidx = 0; |
1f4361a7 | 8677 | size_t amt; |
fc0e6df6 PB |
8678 | |
8679 | if (elf_dynverref (abfd) != 0) | |
8680 | { | |
8681 | Elf_Internal_Shdr *hdr; | |
8682 | Elf_External_Verneed *everneed; | |
8683 | Elf_Internal_Verneed *iverneed; | |
8684 | unsigned int i; | |
d0fb9a8d | 8685 | bfd_byte *contents_end; |
fc0e6df6 PB |
8686 | |
8687 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8688 | ||
bd61e135 AM |
8689 | if (hdr->sh_info == 0 |
8690 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8691 | { |
dc1e8a47 | 8692 | error_return_bad_verref: |
4eca0228 | 8693 | _bfd_error_handler |
871b3ab2 | 8694 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8695 | bfd_set_error (bfd_error_bad_value); |
dc1e8a47 | 8696 | error_return_verref: |
d0fb9a8d JJ |
8697 | elf_tdata (abfd)->verref = NULL; |
8698 | elf_tdata (abfd)->cverrefs = 0; | |
8699 | goto error_return; | |
8700 | } | |
601a03ba | 8701 | |
2bb3687b AM |
8702 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
8703 | goto error_return_verref; | |
8704 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); | |
8705 | if (contents == NULL) | |
d0fb9a8d | 8706 | goto error_return_verref; |
fc0e6df6 | 8707 | |
1f4361a7 AM |
8708 | if (_bfd_mul_overflow (hdr->sh_info, sizeof (Elf_Internal_Verneed), &amt)) |
8709 | { | |
8710 | bfd_set_error (bfd_error_file_too_big); | |
8711 | goto error_return_verref; | |
8712 | } | |
8713 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt); | |
601a03ba | 8714 | if (elf_tdata (abfd)->verref == NULL) |
d0fb9a8d JJ |
8715 | goto error_return_verref; |
8716 | ||
8717 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8718 | == sizeof (Elf_External_Vernaux)); | |
8719 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8720 | everneed = (Elf_External_Verneed *) contents; |
8721 | iverneed = elf_tdata (abfd)->verref; | |
8722 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8723 | { | |
8724 | Elf_External_Vernaux *evernaux; | |
8725 | Elf_Internal_Vernaux *ivernaux; | |
8726 | unsigned int j; | |
8727 | ||
8728 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8729 | ||
8730 | iverneed->vn_bfd = abfd; | |
8731 | ||
8732 | iverneed->vn_filename = | |
8733 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8734 | iverneed->vn_file); | |
8735 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8736 | goto error_return_bad_verref; |
fc0e6df6 | 8737 | |
d0fb9a8d JJ |
8738 | if (iverneed->vn_cnt == 0) |
8739 | iverneed->vn_auxptr = NULL; | |
8740 | else | |
8741 | { | |
1f4361a7 AM |
8742 | if (_bfd_mul_overflow (iverneed->vn_cnt, |
8743 | sizeof (Elf_Internal_Vernaux), &amt)) | |
8744 | { | |
8745 | bfd_set_error (bfd_error_file_too_big); | |
8746 | goto error_return_verref; | |
8747 | } | |
a50b1753 | 8748 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
1f4361a7 | 8749 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8750 | if (iverneed->vn_auxptr == NULL) |
8751 | goto error_return_verref; | |
8752 | } | |
8753 | ||
8754 | if (iverneed->vn_aux | |
8755 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8756 | goto error_return_bad_verref; |
fc0e6df6 PB |
8757 | |
8758 | evernaux = ((Elf_External_Vernaux *) | |
8759 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8760 | ivernaux = iverneed->vn_auxptr; | |
8761 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8762 | { | |
8763 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8764 | ||
8765 | ivernaux->vna_nodename = | |
8766 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8767 | ivernaux->vna_name); | |
8768 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8769 | goto error_return_bad_verref; |
fc0e6df6 | 8770 | |
25ff461f AM |
8771 | if (ivernaux->vna_other > freeidx) |
8772 | freeidx = ivernaux->vna_other; | |
8773 | ||
8774 | ivernaux->vna_nextptr = NULL; | |
8775 | if (ivernaux->vna_next == 0) | |
8776 | { | |
8777 | iverneed->vn_cnt = j + 1; | |
8778 | break; | |
8779 | } | |
fc0e6df6 PB |
8780 | if (j + 1 < iverneed->vn_cnt) |
8781 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8782 | |
d0fb9a8d JJ |
8783 | if (ivernaux->vna_next |
8784 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8785 | goto error_return_bad_verref; |
d0fb9a8d | 8786 | |
fc0e6df6 PB |
8787 | evernaux = ((Elf_External_Vernaux *) |
8788 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8789 | } |
8790 | ||
25ff461f AM |
8791 | iverneed->vn_nextref = NULL; |
8792 | if (iverneed->vn_next == 0) | |
8793 | break; | |
fc0e6df6 PB |
8794 | if (i + 1 < hdr->sh_info) |
8795 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8796 | |
d0fb9a8d JJ |
8797 | if (iverneed->vn_next |
8798 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8799 | goto error_return_bad_verref; |
d0fb9a8d | 8800 | |
fc0e6df6 PB |
8801 | everneed = ((Elf_External_Verneed *) |
8802 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8803 | } | |
25ff461f | 8804 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8805 | |
8806 | free (contents); | |
8807 | contents = NULL; | |
8808 | } | |
252b5132 RH |
8809 | |
8810 | if (elf_dynverdef (abfd) != 0) | |
8811 | { | |
8812 | Elf_Internal_Shdr *hdr; | |
8813 | Elf_External_Verdef *everdef; | |
8814 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8815 | Elf_Internal_Verdef *iverdefarr; |
8816 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8817 | unsigned int i; |
062e2358 | 8818 | unsigned int maxidx; |
d0fb9a8d | 8819 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8820 | |
8821 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8822 | ||
601a03ba AM |
8823 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8824 | { | |
8825 | error_return_bad_verdef: | |
4eca0228 | 8826 | _bfd_error_handler |
871b3ab2 | 8827 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8828 | bfd_set_error (bfd_error_bad_value); |
8829 | error_return_verdef: | |
8830 | elf_tdata (abfd)->verdef = NULL; | |
8831 | elf_tdata (abfd)->cverdefs = 0; | |
8832 | goto error_return; | |
8833 | } | |
8834 | ||
2bb3687b | 8835 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
601a03ba | 8836 | goto error_return_verdef; |
2bb3687b AM |
8837 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); |
8838 | if (contents == NULL) | |
601a03ba | 8839 | goto error_return_verdef; |
d0fb9a8d JJ |
8840 | |
8841 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8842 | >= sizeof (Elf_External_Verdaux)); | |
8843 | contents_end_def = contents + hdr->sh_size | |
8844 | - sizeof (Elf_External_Verdef); | |
8845 | contents_end_aux = contents + hdr->sh_size | |
8846 | - sizeof (Elf_External_Verdaux); | |
8847 | ||
f631889e UD |
8848 | /* We know the number of entries in the section but not the maximum |
8849 | index. Therefore we have to run through all entries and find | |
8850 | the maximum. */ | |
252b5132 | 8851 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8852 | maxidx = 0; |
8853 | for (i = 0; i < hdr->sh_info; ++i) | |
8854 | { | |
8855 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8856 | ||
601a03ba AM |
8857 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8858 | goto error_return_bad_verdef; | |
062e2358 AM |
8859 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8860 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8861 | |
25ff461f AM |
8862 | if (iverdefmem.vd_next == 0) |
8863 | break; | |
8864 | ||
d0fb9a8d JJ |
8865 | if (iverdefmem.vd_next |
8866 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8867 | goto error_return_bad_verdef; |
d0fb9a8d | 8868 | |
f631889e UD |
8869 | everdef = ((Elf_External_Verdef *) |
8870 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8871 | } | |
8872 | ||
fc0e6df6 PB |
8873 | if (default_imported_symver) |
8874 | { | |
8875 | if (freeidx > maxidx) | |
8876 | maxidx = ++freeidx; | |
8877 | else | |
8878 | freeidx = ++maxidx; | |
8879 | } | |
1f4361a7 AM |
8880 | if (_bfd_mul_overflow (maxidx, sizeof (Elf_Internal_Verdef), &amt)) |
8881 | { | |
8882 | bfd_set_error (bfd_error_file_too_big); | |
8883 | goto error_return_verdef; | |
8884 | } | |
8885 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e | 8886 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8887 | goto error_return_verdef; |
f631889e UD |
8888 | |
8889 | elf_tdata (abfd)->cverdefs = maxidx; | |
8890 | ||
8891 | everdef = (Elf_External_Verdef *) contents; | |
8892 | iverdefarr = elf_tdata (abfd)->verdef; | |
8893 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8894 | { |
8895 | Elf_External_Verdaux *everdaux; | |
8896 | Elf_Internal_Verdaux *iverdaux; | |
8897 | unsigned int j; | |
8898 | ||
f631889e UD |
8899 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8900 | ||
d0fb9a8d | 8901 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8902 | goto error_return_bad_verdef; |
d0fb9a8d | 8903 | |
f631889e | 8904 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8905 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8906 | |
8907 | iverdef->vd_bfd = abfd; | |
8908 | ||
d0fb9a8d JJ |
8909 | if (iverdef->vd_cnt == 0) |
8910 | iverdef->vd_auxptr = NULL; | |
8911 | else | |
8912 | { | |
1f4361a7 AM |
8913 | if (_bfd_mul_overflow (iverdef->vd_cnt, |
8914 | sizeof (Elf_Internal_Verdaux), &amt)) | |
8915 | { | |
8916 | bfd_set_error (bfd_error_file_too_big); | |
8917 | goto error_return_verdef; | |
8918 | } | |
a50b1753 | 8919 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
1f4361a7 | 8920 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8921 | if (iverdef->vd_auxptr == NULL) |
8922 | goto error_return_verdef; | |
8923 | } | |
8924 | ||
8925 | if (iverdef->vd_aux | |
8926 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8927 | goto error_return_bad_verdef; |
252b5132 RH |
8928 | |
8929 | everdaux = ((Elf_External_Verdaux *) | |
8930 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8931 | iverdaux = iverdef->vd_auxptr; | |
8932 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8933 | { | |
8934 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8935 | ||
8936 | iverdaux->vda_nodename = | |
8937 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8938 | iverdaux->vda_name); | |
8939 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8940 | goto error_return_bad_verdef; |
252b5132 | 8941 | |
25ff461f AM |
8942 | iverdaux->vda_nextptr = NULL; |
8943 | if (iverdaux->vda_next == 0) | |
8944 | { | |
8945 | iverdef->vd_cnt = j + 1; | |
8946 | break; | |
8947 | } | |
252b5132 RH |
8948 | if (j + 1 < iverdef->vd_cnt) |
8949 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8950 | |
d0fb9a8d JJ |
8951 | if (iverdaux->vda_next |
8952 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8953 | goto error_return_bad_verdef; |
d0fb9a8d | 8954 | |
252b5132 RH |
8955 | everdaux = ((Elf_External_Verdaux *) |
8956 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8957 | } | |
8958 | ||
595bce75 | 8959 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8960 | if (iverdef->vd_cnt) |
8961 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8962 | |
25ff461f AM |
8963 | iverdef->vd_nextdef = NULL; |
8964 | if (iverdef->vd_next == 0) | |
8965 | break; | |
d0fb9a8d | 8966 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8967 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8968 | |
8969 | everdef = ((Elf_External_Verdef *) | |
8970 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8971 | } | |
8972 | ||
8973 | free (contents); | |
8974 | contents = NULL; | |
8975 | } | |
fc0e6df6 | 8976 | else if (default_imported_symver) |
252b5132 | 8977 | { |
fc0e6df6 PB |
8978 | if (freeidx < 3) |
8979 | freeidx = 3; | |
8980 | else | |
8981 | freeidx++; | |
252b5132 | 8982 | |
1f4361a7 AM |
8983 | if (_bfd_mul_overflow (freeidx, sizeof (Elf_Internal_Verdef), &amt)) |
8984 | { | |
8985 | bfd_set_error (bfd_error_file_too_big); | |
8986 | goto error_return; | |
8987 | } | |
8988 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
fc0e6df6 | 8989 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8990 | goto error_return; |
8991 | ||
fc0e6df6 PB |
8992 | elf_tdata (abfd)->cverdefs = freeidx; |
8993 | } | |
252b5132 | 8994 | |
fc0e6df6 PB |
8995 | /* Create a default version based on the soname. */ |
8996 | if (default_imported_symver) | |
8997 | { | |
8998 | Elf_Internal_Verdef *iverdef; | |
8999 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 9000 | |
5bb3703f | 9001 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 9002 | |
fc0e6df6 PB |
9003 | iverdef->vd_version = VER_DEF_CURRENT; |
9004 | iverdef->vd_flags = 0; | |
9005 | iverdef->vd_ndx = freeidx; | |
9006 | iverdef->vd_cnt = 1; | |
252b5132 | 9007 | |
fc0e6df6 | 9008 | iverdef->vd_bfd = abfd; |
252b5132 | 9009 | |
fc0e6df6 PB |
9010 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
9011 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 9012 | goto error_return_verdef; |
fc0e6df6 | 9013 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
9014 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
9015 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
9016 | if (iverdef->vd_auxptr == NULL) |
9017 | goto error_return_verdef; | |
252b5132 | 9018 | |
fc0e6df6 PB |
9019 | iverdaux = iverdef->vd_auxptr; |
9020 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
9021 | } |
9022 | ||
b34976b6 | 9023 | return TRUE; |
252b5132 RH |
9024 | |
9025 | error_return: | |
c9594989 | 9026 | free (contents); |
b34976b6 | 9027 | return FALSE; |
252b5132 RH |
9028 | } |
9029 | \f | |
9030 | asymbol * | |
217aa764 | 9031 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
9032 | { |
9033 | elf_symbol_type *newsym; | |
9034 | ||
7a6e0d89 | 9035 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
9036 | if (!newsym) |
9037 | return NULL; | |
201159ec NC |
9038 | newsym->symbol.the_bfd = abfd; |
9039 | return &newsym->symbol; | |
252b5132 RH |
9040 | } |
9041 | ||
9042 | void | |
217aa764 AM |
9043 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
9044 | asymbol *symbol, | |
9045 | symbol_info *ret) | |
252b5132 RH |
9046 | { |
9047 | bfd_symbol_info (symbol, ret); | |
9048 | } | |
9049 | ||
9050 | /* Return whether a symbol name implies a local symbol. Most targets | |
9051 | use this function for the is_local_label_name entry point, but some | |
9052 | override it. */ | |
9053 | ||
b34976b6 | 9054 | bfd_boolean |
217aa764 AM |
9055 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
9056 | const char *name) | |
252b5132 RH |
9057 | { |
9058 | /* Normal local symbols start with ``.L''. */ | |
9059 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 9060 | return TRUE; |
252b5132 RH |
9061 | |
9062 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
9063 | DWARF debugging symbols starting with ``..''. */ | |
9064 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 9065 | return TRUE; |
252b5132 RH |
9066 | |
9067 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
9068 | emitting DWARF debugging output. I suspect this is actually a | |
9069 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
9070 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
9071 | underscore to be emitted on some ELF targets). For ease of use, | |
9072 | we treat such symbols as local. */ | |
9073 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 9074 | return TRUE; |
252b5132 | 9075 | |
b1fa9dd6 NC |
9076 | /* Treat assembler generated fake symbols, dollar local labels and |
9077 | forward-backward labels (aka local labels) as locals. | |
9078 | These labels have the form: | |
9079 | ||
07d6d2b8 | 9080 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
9081 | |
9082 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
9083 | ||
9084 | Versions which start with .L will have already been matched above, | |
9085 | so we only need to match the rest. */ | |
9086 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
9087 | { | |
9088 | bfd_boolean ret = FALSE; | |
9089 | const char * p; | |
9090 | char c; | |
9091 | ||
9092 | for (p = name + 2; (c = *p); p++) | |
9093 | { | |
9094 | if (c == 1 || c == 2) | |
9095 | { | |
9096 | if (c == 1 && p == name + 2) | |
9097 | /* A fake symbol. */ | |
9098 | return TRUE; | |
9099 | ||
9100 | /* FIXME: We are being paranoid here and treating symbols like | |
9101 | L0^Bfoo as if there were non-local, on the grounds that the | |
9102 | assembler will never generate them. But can any symbol | |
9103 | containing an ASCII value in the range 1-31 ever be anything | |
9104 | other than some kind of local ? */ | |
9105 | ret = TRUE; | |
9106 | } | |
9107 | ||
9108 | if (! ISDIGIT (c)) | |
9109 | { | |
9110 | ret = FALSE; | |
9111 | break; | |
9112 | } | |
9113 | } | |
9114 | return ret; | |
9115 | } | |
ffa54770 | 9116 | |
b34976b6 | 9117 | return FALSE; |
252b5132 RH |
9118 | } |
9119 | ||
9120 | alent * | |
217aa764 AM |
9121 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9122 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9123 | { |
9124 | abort (); | |
9125 | return NULL; | |
9126 | } | |
9127 | ||
b34976b6 | 9128 | bfd_boolean |
217aa764 AM |
9129 | _bfd_elf_set_arch_mach (bfd *abfd, |
9130 | enum bfd_architecture arch, | |
9131 | unsigned long machine) | |
252b5132 RH |
9132 | { |
9133 | /* If this isn't the right architecture for this backend, and this | |
9134 | isn't the generic backend, fail. */ | |
9135 | if (arch != get_elf_backend_data (abfd)->arch | |
9136 | && arch != bfd_arch_unknown | |
9137 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 9138 | return FALSE; |
252b5132 RH |
9139 | |
9140 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9141 | } | |
9142 | ||
d1fad7c6 NC |
9143 | /* Find the nearest line to a particular section and offset, |
9144 | for error reporting. */ | |
9145 | ||
b34976b6 | 9146 | bfd_boolean |
217aa764 | 9147 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9148 | asymbol **symbols, |
fb167eb2 | 9149 | asection *section, |
217aa764 AM |
9150 | bfd_vma offset, |
9151 | const char **filename_ptr, | |
9152 | const char **functionname_ptr, | |
fb167eb2 AM |
9153 | unsigned int *line_ptr, |
9154 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9155 | { |
b34976b6 | 9156 | bfd_boolean found; |
d1fad7c6 | 9157 | |
fb167eb2 | 9158 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9159 | filename_ptr, functionname_ptr, |
fb167eb2 | 9160 | line_ptr, discriminator_ptr, |
9defd221 | 9161 | dwarf_debug_sections, |
e7679060 AM |
9162 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
9163 | return TRUE; | |
9164 | ||
9165 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9166 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
9167 | { |
9168 | if (!*functionname_ptr) | |
e00e8198 AM |
9169 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9170 | *filename_ptr ? NULL : filename_ptr, | |
9171 | functionname_ptr); | |
b34976b6 | 9172 | return TRUE; |
d1fad7c6 NC |
9173 | } |
9174 | ||
9175 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9176 | &found, filename_ptr, |
9177 | functionname_ptr, line_ptr, | |
9178 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 9179 | return FALSE; |
dc43ada5 | 9180 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 9181 | return TRUE; |
d1fad7c6 NC |
9182 | |
9183 | if (symbols == NULL) | |
b34976b6 | 9184 | return FALSE; |
d1fad7c6 | 9185 | |
e00e8198 AM |
9186 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9187 | filename_ptr, functionname_ptr)) | |
b34976b6 | 9188 | return FALSE; |
d1fad7c6 | 9189 | |
252b5132 | 9190 | *line_ptr = 0; |
b34976b6 | 9191 | return TRUE; |
252b5132 RH |
9192 | } |
9193 | ||
5420f73d L |
9194 | /* Find the line for a symbol. */ |
9195 | ||
9196 | bfd_boolean | |
9197 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
9198 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9199 | { |
fb167eb2 AM |
9200 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9201 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9202 | dwarf_debug_sections, |
fb167eb2 | 9203 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9204 | } |
9205 | ||
4ab527b0 FF |
9206 | /* After a call to bfd_find_nearest_line, successive calls to |
9207 | bfd_find_inliner_info can be used to get source information about | |
9208 | each level of function inlining that terminated at the address | |
9209 | passed to bfd_find_nearest_line. Currently this is only supported | |
9210 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9211 | ||
9212 | bfd_boolean | |
9213 | _bfd_elf_find_inliner_info (bfd *abfd, | |
9214 | const char **filename_ptr, | |
9215 | const char **functionname_ptr, | |
9216 | unsigned int *line_ptr) | |
9217 | { | |
9218 | bfd_boolean found; | |
9219 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9220 | functionname_ptr, line_ptr, | |
9221 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9222 | return found; | |
9223 | } | |
9224 | ||
252b5132 | 9225 | int |
a6b96beb | 9226 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9227 | { |
8ded5a0f AM |
9228 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9229 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9230 | |
0e1862bb | 9231 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9232 | { |
12bd6957 | 9233 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9234 | |
62d7a5f6 AM |
9235 | if (phdr_size == (bfd_size_type) -1) |
9236 | { | |
9237 | struct elf_segment_map *m; | |
9238 | ||
9239 | phdr_size = 0; | |
12bd6957 | 9240 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9241 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9242 | |
62d7a5f6 AM |
9243 | if (phdr_size == 0) |
9244 | phdr_size = get_program_header_size (abfd, info); | |
9245 | } | |
8ded5a0f | 9246 | |
12bd6957 | 9247 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9248 | ret += phdr_size; |
9249 | } | |
9250 | ||
252b5132 RH |
9251 | return ret; |
9252 | } | |
9253 | ||
b34976b6 | 9254 | bfd_boolean |
217aa764 AM |
9255 | _bfd_elf_set_section_contents (bfd *abfd, |
9256 | sec_ptr section, | |
0f867abe | 9257 | const void *location, |
217aa764 AM |
9258 | file_ptr offset, |
9259 | bfd_size_type count) | |
252b5132 RH |
9260 | { |
9261 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9262 | file_ptr pos; |
252b5132 RH |
9263 | |
9264 | if (! abfd->output_has_begun | |
217aa764 | 9265 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 9266 | return FALSE; |
252b5132 | 9267 | |
0ce398f1 L |
9268 | if (!count) |
9269 | return TRUE; | |
9270 | ||
252b5132 | 9271 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9272 | if (hdr->sh_offset == (file_ptr) -1) |
9273 | { | |
a0dcf297 NC |
9274 | unsigned char *contents; |
9275 | ||
1ff6de03 NA |
9276 | if (bfd_section_is_ctf (section)) |
9277 | /* Nothing to do with this section: the contents are generated | |
9278 | later. */ | |
9279 | return TRUE; | |
9280 | ||
a0dcf297 NC |
9281 | if ((section->flags & SEC_ELF_COMPRESS) == 0) |
9282 | { | |
9283 | _bfd_error_handler | |
9284 | (_("%pB:%pA: error: attempting to write into an unallocated compressed section"), | |
9285 | abfd, section); | |
9286 | bfd_set_error (bfd_error_invalid_operation); | |
9287 | return FALSE; | |
9288 | } | |
9289 | ||
9290 | if ((offset + count) > hdr->sh_size) | |
9291 | { | |
9292 | _bfd_error_handler | |
9293 | (_("%pB:%pA: error: attempting to write over the end of the section"), | |
9294 | abfd, section); | |
9295 | ||
9296 | bfd_set_error (bfd_error_invalid_operation); | |
9297 | return FALSE; | |
9298 | } | |
9299 | ||
9300 | contents = hdr->contents; | |
9301 | if (contents == NULL) | |
9302 | { | |
9303 | _bfd_error_handler | |
9304 | (_("%pB:%pA: error: attempting to write section into an empty buffer"), | |
9305 | abfd, section); | |
9306 | ||
9307 | bfd_set_error (bfd_error_invalid_operation); | |
9308 | return FALSE; | |
9309 | } | |
9310 | ||
0ce398f1 L |
9311 | memcpy (contents + offset, location, count); |
9312 | return TRUE; | |
9313 | } | |
a0dcf297 | 9314 | |
dc810e39 AM |
9315 | pos = hdr->sh_offset + offset; |
9316 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9317 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9318 | return FALSE; |
252b5132 | 9319 | |
b34976b6 | 9320 | return TRUE; |
252b5132 RH |
9321 | } |
9322 | ||
f3185997 | 9323 | bfd_boolean |
217aa764 AM |
9324 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9325 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9326 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9327 | { |
9328 | abort (); | |
f3185997 | 9329 | return FALSE; |
252b5132 RH |
9330 | } |
9331 | ||
252b5132 RH |
9332 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9333 | ||
b34976b6 | 9334 | bfd_boolean |
217aa764 | 9335 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9336 | { |
c044fabd | 9337 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9338 | |
9339 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9340 | { | |
9341 | bfd_reloc_code_real_type code; | |
9342 | reloc_howto_type *howto; | |
9343 | ||
9344 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9345 | equivalent ELF reloc. */ |
252b5132 RH |
9346 | |
9347 | if (areloc->howto->pc_relative) | |
9348 | { | |
9349 | switch (areloc->howto->bitsize) | |
9350 | { | |
9351 | case 8: | |
9352 | code = BFD_RELOC_8_PCREL; | |
9353 | break; | |
9354 | case 12: | |
9355 | code = BFD_RELOC_12_PCREL; | |
9356 | break; | |
9357 | case 16: | |
9358 | code = BFD_RELOC_16_PCREL; | |
9359 | break; | |
9360 | case 24: | |
9361 | code = BFD_RELOC_24_PCREL; | |
9362 | break; | |
9363 | case 32: | |
9364 | code = BFD_RELOC_32_PCREL; | |
9365 | break; | |
9366 | case 64: | |
9367 | code = BFD_RELOC_64_PCREL; | |
9368 | break; | |
9369 | default: | |
9370 | goto fail; | |
9371 | } | |
9372 | ||
9373 | howto = bfd_reloc_type_lookup (abfd, code); | |
9374 | ||
94698d01 | 9375 | if (howto && areloc->howto->pcrel_offset != howto->pcrel_offset) |
252b5132 RH |
9376 | { |
9377 | if (howto->pcrel_offset) | |
9378 | areloc->addend += areloc->address; | |
9379 | else | |
9380 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9381 | } | |
9382 | } | |
9383 | else | |
9384 | { | |
9385 | switch (areloc->howto->bitsize) | |
9386 | { | |
9387 | case 8: | |
9388 | code = BFD_RELOC_8; | |
9389 | break; | |
9390 | case 14: | |
9391 | code = BFD_RELOC_14; | |
9392 | break; | |
9393 | case 16: | |
9394 | code = BFD_RELOC_16; | |
9395 | break; | |
9396 | case 26: | |
9397 | code = BFD_RELOC_26; | |
9398 | break; | |
9399 | case 32: | |
9400 | code = BFD_RELOC_32; | |
9401 | break; | |
9402 | case 64: | |
9403 | code = BFD_RELOC_64; | |
9404 | break; | |
9405 | default: | |
9406 | goto fail; | |
9407 | } | |
9408 | ||
9409 | howto = bfd_reloc_type_lookup (abfd, code); | |
9410 | } | |
9411 | ||
9412 | if (howto) | |
9413 | areloc->howto = howto; | |
9414 | else | |
9415 | goto fail; | |
9416 | } | |
9417 | ||
b34976b6 | 9418 | return TRUE; |
252b5132 RH |
9419 | |
9420 | fail: | |
0aa13fee AM |
9421 | /* xgettext:c-format */ |
9422 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9423 | abfd, areloc->howto->name); | |
9aea1e31 | 9424 | bfd_set_error (bfd_error_sorry); |
b34976b6 | 9425 | return FALSE; |
252b5132 RH |
9426 | } |
9427 | ||
b34976b6 | 9428 | bfd_boolean |
217aa764 | 9429 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9430 | { |
d9071b0c | 9431 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
0ed18fa1 AM |
9432 | if (tdata != NULL |
9433 | && (bfd_get_format (abfd) == bfd_object | |
9434 | || bfd_get_format (abfd) == bfd_core)) | |
252b5132 | 9435 | { |
c0355132 | 9436 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9437 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9438 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9439 | } |
9440 | ||
9441 | return _bfd_generic_close_and_cleanup (abfd); | |
9442 | } | |
9443 | ||
9444 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9445 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9446 | range-checking to interfere. There is nothing else to do in processing | |
9447 | this reloc. */ | |
9448 | ||
9449 | bfd_reloc_status_type | |
217aa764 AM |
9450 | _bfd_elf_rel_vtable_reloc_fn |
9451 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9452 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9453 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9454 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9455 | { |
9456 | return bfd_reloc_ok; | |
9457 | } | |
252b5132 RH |
9458 | \f |
9459 | /* Elf core file support. Much of this only works on native | |
9460 | toolchains, since we rely on knowing the | |
9461 | machine-dependent procfs structure in order to pick | |
c044fabd | 9462 | out details about the corefile. */ |
252b5132 RH |
9463 | |
9464 | #ifdef HAVE_SYS_PROCFS_H | |
9465 | # include <sys/procfs.h> | |
9466 | #endif | |
9467 | ||
261b8d08 PA |
9468 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9469 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9470 | |
9471 | static int | |
217aa764 | 9472 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9473 | { |
261b8d08 PA |
9474 | int pid; |
9475 | ||
228e534f | 9476 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9477 | if (pid == 0) |
228e534f | 9478 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9479 | |
9480 | return pid; | |
252b5132 RH |
9481 | } |
9482 | ||
252b5132 RH |
9483 | /* If there isn't a section called NAME, make one, using |
9484 | data from SECT. Note, this function will generate a | |
9485 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9486 | overwrite it. */ |
252b5132 | 9487 | |
b34976b6 | 9488 | static bfd_boolean |
217aa764 | 9489 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9490 | { |
c044fabd | 9491 | asection *sect2; |
252b5132 RH |
9492 | |
9493 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9494 | return TRUE; |
252b5132 | 9495 | |
117ed4f8 | 9496 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9497 | if (sect2 == NULL) |
b34976b6 | 9498 | return FALSE; |
252b5132 | 9499 | |
eea6121a | 9500 | sect2->size = sect->size; |
252b5132 | 9501 | sect2->filepos = sect->filepos; |
252b5132 | 9502 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9503 | return TRUE; |
252b5132 RH |
9504 | } |
9505 | ||
bb0082d6 AM |
9506 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9507 | actually creates up to two pseudosections: | |
9508 | - For the single-threaded case, a section named NAME, unless | |
9509 | such a section already exists. | |
9510 | - For the multi-threaded case, a section named "NAME/PID", where | |
9511 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9512 | Both pseudosections have identical contents. */ |
b34976b6 | 9513 | bfd_boolean |
217aa764 AM |
9514 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9515 | char *name, | |
9516 | size_t size, | |
9517 | ufile_ptr filepos) | |
bb0082d6 AM |
9518 | { |
9519 | char buf[100]; | |
9520 | char *threaded_name; | |
d4c88bbb | 9521 | size_t len; |
bb0082d6 AM |
9522 | asection *sect; |
9523 | ||
9524 | /* Build the section name. */ | |
9525 | ||
9526 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9527 | len = strlen (buf) + 1; |
a50b1753 | 9528 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9529 | if (threaded_name == NULL) |
b34976b6 | 9530 | return FALSE; |
d4c88bbb | 9531 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9532 | |
117ed4f8 AM |
9533 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9534 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9535 | if (sect == NULL) |
b34976b6 | 9536 | return FALSE; |
eea6121a | 9537 | sect->size = size; |
bb0082d6 | 9538 | sect->filepos = filepos; |
bb0082d6 AM |
9539 | sect->alignment_power = 2; |
9540 | ||
936e320b | 9541 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9542 | } |
9543 | ||
58e07198 CZ |
9544 | static bfd_boolean |
9545 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9546 | size_t offs) | |
9547 | { | |
9548 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9549 | SEC_HAS_CONTENTS); | |
9550 | ||
9551 | if (sect == NULL) | |
9552 | return FALSE; | |
9553 | ||
9554 | sect->size = note->descsz - offs; | |
9555 | sect->filepos = note->descpos + offs; | |
9556 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9557 | ||
9558 | return TRUE; | |
9559 | } | |
9560 | ||
ffbda24e LM |
9561 | static bfd_boolean |
9562 | elfcore_make_memtag_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9563 | size_t offs) | |
9564 | { | |
9565 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".memtag", | |
9566 | SEC_HAS_CONTENTS); | |
9567 | ||
9568 | if (sect == NULL) | |
9569 | return FALSE; | |
9570 | ||
9571 | sect->size = note->descsz - offs; | |
9572 | sect->filepos = note->descpos + offs; | |
9573 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9574 | ||
9575 | return TRUE; | |
9576 | } | |
9577 | ||
252b5132 | 9578 | /* prstatus_t exists on: |
4a938328 | 9579 | solaris 2.5+ |
252b5132 RH |
9580 | linux 2.[01] + glibc |
9581 | unixware 4.2 | |
9582 | */ | |
9583 | ||
9584 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9585 | |
b34976b6 | 9586 | static bfd_boolean |
217aa764 | 9587 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9588 | { |
eea6121a | 9589 | size_t size; |
7ee38065 | 9590 | int offset; |
252b5132 | 9591 | |
4a938328 MS |
9592 | if (note->descsz == sizeof (prstatus_t)) |
9593 | { | |
9594 | prstatus_t prstat; | |
252b5132 | 9595 | |
eea6121a | 9596 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9597 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9598 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9599 | |
fa49d224 NC |
9600 | /* Do not overwrite the core signal if it |
9601 | has already been set by another thread. */ | |
228e534f AM |
9602 | if (elf_tdata (abfd)->core->signal == 0) |
9603 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9604 | if (elf_tdata (abfd)->core->pid == 0) | |
9605 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9606 | |
4a938328 MS |
9607 | /* pr_who exists on: |
9608 | solaris 2.5+ | |
9609 | unixware 4.2 | |
9610 | pr_who doesn't exist on: | |
9611 | linux 2.[01] | |
9612 | */ | |
252b5132 | 9613 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9614 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9615 | #else |
228e534f | 9616 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9617 | #endif |
4a938328 | 9618 | } |
7ee38065 | 9619 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9620 | else if (note->descsz == sizeof (prstatus32_t)) |
9621 | { | |
9622 | /* 64-bit host, 32-bit corefile */ | |
9623 | prstatus32_t prstat; | |
9624 | ||
eea6121a | 9625 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9626 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9627 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9628 | ||
fa49d224 NC |
9629 | /* Do not overwrite the core signal if it |
9630 | has already been set by another thread. */ | |
228e534f AM |
9631 | if (elf_tdata (abfd)->core->signal == 0) |
9632 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9633 | if (elf_tdata (abfd)->core->pid == 0) | |
9634 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9635 | |
9636 | /* pr_who exists on: | |
9637 | solaris 2.5+ | |
9638 | unixware 4.2 | |
9639 | pr_who doesn't exist on: | |
9640 | linux 2.[01] | |
9641 | */ | |
7ee38065 | 9642 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9643 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9644 | #else |
228e534f | 9645 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9646 | #endif |
9647 | } | |
7ee38065 | 9648 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9649 | else |
9650 | { | |
9651 | /* Fail - we don't know how to handle any other | |
9652 | note size (ie. data object type). */ | |
b34976b6 | 9653 | return TRUE; |
4a938328 | 9654 | } |
252b5132 | 9655 | |
bb0082d6 | 9656 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9657 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9658 | size, note->descpos + offset); |
252b5132 RH |
9659 | } |
9660 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9661 | ||
bb0082d6 | 9662 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9663 | static bfd_boolean |
217aa764 AM |
9664 | elfcore_make_note_pseudosection (bfd *abfd, |
9665 | char *name, | |
9666 | Elf_Internal_Note *note) | |
252b5132 | 9667 | { |
936e320b AM |
9668 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9669 | note->descsz, note->descpos); | |
252b5132 RH |
9670 | } |
9671 | ||
ff08c6bb JB |
9672 | /* There isn't a consistent prfpregset_t across platforms, |
9673 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9674 | data structure apart. */ |
9675 | ||
b34976b6 | 9676 | static bfd_boolean |
217aa764 | 9677 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9678 | { |
9679 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9680 | } | |
9681 | ||
ff08c6bb | 9682 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9683 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9684 | literally. */ |
c044fabd | 9685 | |
b34976b6 | 9686 | static bfd_boolean |
217aa764 | 9687 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9688 | { |
9689 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9690 | } | |
9691 | ||
4339cae0 L |
9692 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9693 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9694 | contents literally. */ | |
9695 | ||
9696 | static bfd_boolean | |
9697 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9698 | { | |
9699 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9700 | } | |
9701 | ||
97753bd5 AM |
9702 | static bfd_boolean |
9703 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9704 | { | |
9705 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9706 | } | |
9707 | ||
89eeb0bc LM |
9708 | static bfd_boolean |
9709 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9710 | { | |
9711 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9712 | } | |
97753bd5 | 9713 | |
cb2366c1 EBM |
9714 | static bfd_boolean |
9715 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9716 | { | |
9717 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9718 | } | |
9719 | ||
9720 | static bfd_boolean | |
9721 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9722 | { | |
9723 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9724 | } | |
9725 | ||
9726 | static bfd_boolean | |
9727 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9728 | { | |
9729 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9730 | } | |
9731 | ||
9732 | static bfd_boolean | |
9733 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9734 | { | |
9735 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9736 | } | |
9737 | ||
9738 | static bfd_boolean | |
9739 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9740 | { | |
9741 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9742 | } | |
9743 | ||
9744 | static bfd_boolean | |
9745 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9746 | { | |
9747 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9748 | } | |
9749 | ||
9750 | static bfd_boolean | |
9751 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9752 | { | |
9753 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9754 | } | |
9755 | ||
9756 | static bfd_boolean | |
9757 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9758 | { | |
9759 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9760 | } | |
9761 | ||
9762 | static bfd_boolean | |
9763 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9764 | { | |
9765 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9766 | } | |
9767 | ||
9768 | static bfd_boolean | |
9769 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9770 | { | |
9771 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9772 | } | |
9773 | ||
9774 | static bfd_boolean | |
9775 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9776 | { | |
9777 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9778 | } | |
9779 | ||
9780 | static bfd_boolean | |
9781 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9782 | { | |
9783 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9784 | } | |
9785 | ||
9786 | static bfd_boolean | |
9787 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9788 | { | |
9789 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9790 | } | |
9791 | ||
0675e188 UW |
9792 | static bfd_boolean |
9793 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9794 | { | |
9795 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9796 | } | |
9797 | ||
d7eeb400 MS |
9798 | static bfd_boolean |
9799 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9800 | { | |
9801 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9802 | } | |
9803 | ||
9804 | static bfd_boolean | |
9805 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9806 | { | |
9807 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9808 | } | |
9809 | ||
9810 | static bfd_boolean | |
9811 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9812 | { | |
9813 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9814 | } | |
9815 | ||
9816 | static bfd_boolean | |
9817 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9818 | { | |
9819 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9820 | } | |
9821 | ||
9822 | static bfd_boolean | |
9823 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9824 | { | |
9825 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9826 | } | |
9827 | ||
355b81d9 UW |
9828 | static bfd_boolean |
9829 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9830 | { | |
9831 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9832 | } | |
9833 | ||
9834 | static bfd_boolean | |
9835 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9836 | { | |
9837 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9838 | } | |
9839 | ||
abb3f6cc NC |
9840 | static bfd_boolean |
9841 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9842 | { | |
9843 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9844 | } | |
9845 | ||
4ef9f41a AA |
9846 | static bfd_boolean |
9847 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9848 | { | |
9849 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9850 | } | |
9851 | ||
9852 | static bfd_boolean | |
9853 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9854 | { | |
9855 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9856 | } | |
9857 | ||
88ab90e8 AA |
9858 | static bfd_boolean |
9859 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9860 | { | |
9861 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9862 | } | |
9863 | ||
9864 | static bfd_boolean | |
9865 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9866 | { | |
9867 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9868 | } | |
9869 | ||
faa9a424 UW |
9870 | static bfd_boolean |
9871 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9872 | { | |
9873 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9874 | } | |
9875 | ||
652451f8 YZ |
9876 | static bfd_boolean |
9877 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9878 | { | |
9879 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9880 | } | |
9881 | ||
9882 | static bfd_boolean | |
9883 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9884 | { | |
9885 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9886 | } | |
9887 | ||
9888 | static bfd_boolean | |
9889 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9890 | { | |
9891 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9892 | } | |
9893 | ||
ad1cc4e4 AH |
9894 | static bfd_boolean |
9895 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9896 | { | |
9897 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9898 | } | |
9899 | ||
e6c3b5bf AH |
9900 | static bfd_boolean |
9901 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9902 | { | |
9903 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9904 | } | |
9905 | ||
ffbda24e LM |
9906 | static bfd_boolean |
9907 | elfcore_grok_aarch_morello (bfd *abfd, Elf_Internal_Note *note) | |
9908 | { | |
9909 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-morello", note); | |
9910 | } | |
9911 | ||
27456742 AK |
9912 | static bfd_boolean |
9913 | elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note) | |
9914 | { | |
9915 | return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note); | |
9916 | } | |
9917 | ||
252b5132 | 9918 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9919 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9920 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9921 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9922 | #endif | |
252b5132 RH |
9923 | #endif |
9924 | ||
9925 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9926 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9927 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9928 | typedef psinfo32_t elfcore_psinfo32_t; |
9929 | #endif | |
252b5132 RH |
9930 | #endif |
9931 | ||
252b5132 RH |
9932 | /* return a malloc'ed copy of a string at START which is at |
9933 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9934 | the copy will always have a terminating '\0'. */ |
252b5132 | 9935 | |
936e320b | 9936 | char * |
217aa764 | 9937 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9938 | { |
dc810e39 | 9939 | char *dups; |
a50b1753 | 9940 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9941 | size_t len; |
252b5132 RH |
9942 | |
9943 | if (end == NULL) | |
9944 | len = max; | |
9945 | else | |
9946 | len = end - start; | |
9947 | ||
a50b1753 | 9948 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9949 | if (dups == NULL) |
252b5132 RH |
9950 | return NULL; |
9951 | ||
dc810e39 AM |
9952 | memcpy (dups, start, len); |
9953 | dups[len] = '\0'; | |
252b5132 | 9954 | |
dc810e39 | 9955 | return dups; |
252b5132 RH |
9956 | } |
9957 | ||
bb0082d6 | 9958 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9959 | static bfd_boolean |
217aa764 | 9960 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9961 | { |
4a938328 MS |
9962 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9963 | { | |
9964 | elfcore_psinfo_t psinfo; | |
252b5132 | 9965 | |
7ee38065 | 9966 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9967 | |
335e41d4 | 9968 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9969 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9970 | #endif |
228e534f | 9971 | elf_tdata (abfd)->core->program |
936e320b AM |
9972 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9973 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9974 | |
228e534f | 9975 | elf_tdata (abfd)->core->command |
936e320b AM |
9976 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9977 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9978 | } |
7ee38065 | 9979 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9980 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9981 | { | |
9982 | /* 64-bit host, 32-bit corefile */ | |
9983 | elfcore_psinfo32_t psinfo; | |
9984 | ||
7ee38065 | 9985 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9986 | |
335e41d4 | 9987 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9988 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9989 | #endif |
228e534f | 9990 | elf_tdata (abfd)->core->program |
936e320b AM |
9991 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9992 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9993 | |
228e534f | 9994 | elf_tdata (abfd)->core->command |
936e320b AM |
9995 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9996 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9997 | } |
9998 | #endif | |
9999 | ||
10000 | else | |
10001 | { | |
10002 | /* Fail - we don't know how to handle any other | |
10003 | note size (ie. data object type). */ | |
b34976b6 | 10004 | return TRUE; |
4a938328 | 10005 | } |
252b5132 RH |
10006 | |
10007 | /* Note that for some reason, a spurious space is tacked | |
10008 | onto the end of the args in some (at least one anyway) | |
c044fabd | 10009 | implementations, so strip it off if it exists. */ |
252b5132 RH |
10010 | |
10011 | { | |
228e534f | 10012 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
10013 | int n = strlen (command); |
10014 | ||
10015 | if (0 < n && command[n - 1] == ' ') | |
10016 | command[n - 1] = '\0'; | |
10017 | } | |
10018 | ||
b34976b6 | 10019 | return TRUE; |
252b5132 RH |
10020 | } |
10021 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
10022 | ||
252b5132 | 10023 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 10024 | static bfd_boolean |
217aa764 | 10025 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10026 | { |
f572a39d AM |
10027 | if (note->descsz == sizeof (pstatus_t) |
10028 | #if defined (HAVE_PXSTATUS_T) | |
10029 | || note->descsz == sizeof (pxstatus_t) | |
10030 | #endif | |
10031 | ) | |
4a938328 MS |
10032 | { |
10033 | pstatus_t pstat; | |
252b5132 | 10034 | |
4a938328 | 10035 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10036 | |
228e534f | 10037 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 10038 | } |
7ee38065 | 10039 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
10040 | else if (note->descsz == sizeof (pstatus32_t)) |
10041 | { | |
10042 | /* 64-bit host, 32-bit corefile */ | |
10043 | pstatus32_t pstat; | |
252b5132 | 10044 | |
4a938328 | 10045 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10046 | |
228e534f | 10047 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
10048 | } |
10049 | #endif | |
252b5132 RH |
10050 | /* Could grab some more details from the "representative" |
10051 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 10052 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 10053 | |
b34976b6 | 10054 | return TRUE; |
252b5132 RH |
10055 | } |
10056 | #endif /* defined (HAVE_PSTATUS_T) */ | |
10057 | ||
252b5132 | 10058 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 10059 | static bfd_boolean |
217aa764 | 10060 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
10061 | { |
10062 | lwpstatus_t lwpstat; | |
10063 | char buf[100]; | |
c044fabd | 10064 | char *name; |
d4c88bbb | 10065 | size_t len; |
c044fabd | 10066 | asection *sect; |
252b5132 | 10067 | |
f572a39d AM |
10068 | if (note->descsz != sizeof (lwpstat) |
10069 | #if defined (HAVE_LWPXSTATUS_T) | |
10070 | && note->descsz != sizeof (lwpxstatus_t) | |
10071 | #endif | |
10072 | ) | |
b34976b6 | 10073 | return TRUE; |
252b5132 RH |
10074 | |
10075 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
10076 | ||
228e534f | 10077 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
10078 | /* Do not overwrite the core signal if it has already been set by |
10079 | another thread. */ | |
228e534f AM |
10080 | if (elf_tdata (abfd)->core->signal == 0) |
10081 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 10082 | |
c044fabd | 10083 | /* Make a ".reg/999" section. */ |
252b5132 RH |
10084 | |
10085 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10086 | len = strlen (buf) + 1; |
217aa764 | 10087 | name = bfd_alloc (abfd, len); |
252b5132 | 10088 | if (name == NULL) |
b34976b6 | 10089 | return FALSE; |
d4c88bbb | 10090 | memcpy (name, buf, len); |
252b5132 | 10091 | |
117ed4f8 | 10092 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10093 | if (sect == NULL) |
b34976b6 | 10094 | return FALSE; |
252b5132 RH |
10095 | |
10096 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10097 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
10098 | sect->filepos = note->descpos |
10099 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
10100 | #endif | |
10101 | ||
10102 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 10103 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
10104 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
10105 | #endif | |
10106 | ||
252b5132 RH |
10107 | sect->alignment_power = 2; |
10108 | ||
10109 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 10110 | return FALSE; |
252b5132 RH |
10111 | |
10112 | /* Make a ".reg2/999" section */ | |
10113 | ||
10114 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10115 | len = strlen (buf) + 1; |
217aa764 | 10116 | name = bfd_alloc (abfd, len); |
252b5132 | 10117 | if (name == NULL) |
b34976b6 | 10118 | return FALSE; |
d4c88bbb | 10119 | memcpy (name, buf, len); |
252b5132 | 10120 | |
117ed4f8 | 10121 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10122 | if (sect == NULL) |
b34976b6 | 10123 | return FALSE; |
252b5132 RH |
10124 | |
10125 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10126 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
10127 | sect->filepos = note->descpos |
10128 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
10129 | #endif | |
10130 | ||
10131 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 10132 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
10133 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
10134 | #endif | |
10135 | ||
252b5132 RH |
10136 | sect->alignment_power = 2; |
10137 | ||
936e320b | 10138 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
10139 | } |
10140 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
10141 | ||
8fbac78b JT |
10142 | /* These constants, and the structure offsets used below, are defined by |
10143 | Cygwin's core_dump.h */ | |
10144 | #define NOTE_INFO_PROCESS 1 | |
10145 | #define NOTE_INFO_THREAD 2 | |
10146 | #define NOTE_INFO_MODULE 3 | |
d61f3d03 | 10147 | #define NOTE_INFO_MODULE64 4 |
8fbac78b | 10148 | |
b34976b6 | 10149 | static bfd_boolean |
217aa764 | 10150 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
10151 | { |
10152 | char buf[30]; | |
c044fabd | 10153 | char *name; |
d4c88bbb | 10154 | size_t len; |
3cdad084 | 10155 | unsigned int name_size; |
c044fabd | 10156 | asection *sect; |
2fef9373 | 10157 | unsigned int type; |
4a6636fb PA |
10158 | int is_active_thread; |
10159 | bfd_vma base_addr; | |
16e9c715 | 10160 | |
04ec0fa2 | 10161 | if (note->descsz < 4) |
b34976b6 | 10162 | return TRUE; |
16e9c715 | 10163 | |
4a6636fb PA |
10164 | if (! CONST_STRNEQ (note->namedata, "win32")) |
10165 | return TRUE; | |
10166 | ||
10167 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 10168 | |
404ec933 JT |
10169 | struct { |
10170 | const char *type_name; | |
10171 | unsigned long min_size; | |
10172 | } size_check[] = | |
10173 | { | |
10174 | { "NOTE_INFO_PROCESS", 12 }, | |
10175 | { "NOTE_INFO_THREAD", 12 }, | |
10176 | { "NOTE_INFO_MODULE", 12 }, | |
10177 | { "NOTE_INFO_MODULE64", 16 }, | |
10178 | }; | |
10179 | ||
10180 | if (type > (sizeof(size_check)/sizeof(size_check[0]))) | |
10181 | return TRUE; | |
10182 | ||
10183 | if (note->descsz < size_check[type - 1].min_size) | |
10184 | { | |
10185 | _bfd_error_handler (_("%pB: warning: win32pstatus %s of size %lu bytes is too small"), | |
10186 | abfd, size_check[type - 1].type_name, note->descsz); | |
10187 | return TRUE; | |
10188 | } | |
10189 | ||
4a6636fb | 10190 | switch (type) |
16e9c715 | 10191 | { |
8fbac78b | 10192 | case NOTE_INFO_PROCESS: |
228e534f | 10193 | /* FIXME: need to add ->core->command. */ |
ff2084b9 | 10194 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 4); |
ff2084b9 | 10195 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 8); |
c044fabd | 10196 | break; |
16e9c715 | 10197 | |
8fbac78b | 10198 | case NOTE_INFO_THREAD: |
ff2084b9 JT |
10199 | /* Make a ".reg/<tid>" section containing the Win32 API thread CONTEXT |
10200 | structure. */ | |
4a6636fb | 10201 | /* thread_info.tid */ |
ff2084b9 | 10202 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 4)); |
c044fabd | 10203 | |
d4c88bbb | 10204 | len = strlen (buf) + 1; |
a50b1753 | 10205 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10206 | if (name == NULL) |
b34976b6 | 10207 | return FALSE; |
c044fabd | 10208 | |
d4c88bbb | 10209 | memcpy (name, buf, len); |
16e9c715 | 10210 | |
117ed4f8 | 10211 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10212 | if (sect == NULL) |
b34976b6 | 10213 | return FALSE; |
c044fabd | 10214 | |
4a6636fb | 10215 | /* sizeof (thread_info.thread_context) */ |
03c29a6f | 10216 | sect->size = note->descsz - 12; |
4a6636fb PA |
10217 | /* offsetof (thread_info.thread_context) */ |
10218 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10219 | sect->alignment_power = 2; |
10220 | ||
4a6636fb PA |
10221 | /* thread_info.is_active_thread */ |
10222 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10223 | ||
10224 | if (is_active_thread) | |
16e9c715 | 10225 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 10226 | return FALSE; |
16e9c715 NC |
10227 | break; |
10228 | ||
8fbac78b | 10229 | case NOTE_INFO_MODULE: |
d61f3d03 | 10230 | case NOTE_INFO_MODULE64: |
16e9c715 | 10231 | /* Make a ".module/xxxxxxxx" section. */ |
d61f3d03 JT |
10232 | if (type == NOTE_INFO_MODULE) |
10233 | { | |
d61f3d03 JT |
10234 | /* module_info.base_address */ |
10235 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
10236 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); | |
10237 | /* module_info.module_name_size */ | |
10238 | name_size = bfd_get_32 (abfd, note->descdata + 8); | |
10239 | } | |
10240 | else /* NOTE_INFO_MODULE64 */ | |
10241 | { | |
d61f3d03 JT |
10242 | /* module_info.base_address */ |
10243 | base_addr = bfd_get_64 (abfd, note->descdata + 4); | |
10244 | sprintf (buf, ".module/%016lx", (unsigned long) base_addr); | |
10245 | /* module_info.module_name_size */ | |
10246 | name_size = bfd_get_32 (abfd, note->descdata + 12); | |
10247 | } | |
c044fabd | 10248 | |
d4c88bbb | 10249 | len = strlen (buf) + 1; |
a50b1753 | 10250 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10251 | if (name == NULL) |
b34976b6 | 10252 | return FALSE; |
c044fabd | 10253 | |
d4c88bbb | 10254 | memcpy (name, buf, len); |
252b5132 | 10255 | |
117ed4f8 | 10256 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10257 | |
16e9c715 | 10258 | if (sect == NULL) |
b34976b6 | 10259 | return FALSE; |
c044fabd | 10260 | |
04ec0fa2 | 10261 | if (note->descsz < 12 + name_size) |
404ec933 | 10262 | { |
3cdad084 | 10263 | _bfd_error_handler (_("%pB: win32pstatus NOTE_INFO_MODULE of size %lu is too small to contain a name of size %u"), |
404ec933 JT |
10264 | abfd, note->descsz, name_size); |
10265 | return TRUE; | |
10266 | } | |
04ec0fa2 | 10267 | |
eea6121a | 10268 | sect->size = note->descsz; |
16e9c715 | 10269 | sect->filepos = note->descpos; |
16e9c715 NC |
10270 | sect->alignment_power = 2; |
10271 | break; | |
10272 | ||
10273 | default: | |
b34976b6 | 10274 | return TRUE; |
16e9c715 NC |
10275 | } |
10276 | ||
b34976b6 | 10277 | return TRUE; |
16e9c715 | 10278 | } |
252b5132 | 10279 | |
b34976b6 | 10280 | static bfd_boolean |
217aa764 | 10281 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10282 | { |
9c5bfbb7 | 10283 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10284 | |
252b5132 RH |
10285 | switch (note->type) |
10286 | { | |
10287 | default: | |
b34976b6 | 10288 | return TRUE; |
252b5132 | 10289 | |
252b5132 | 10290 | case NT_PRSTATUS: |
bb0082d6 AM |
10291 | if (bed->elf_backend_grok_prstatus) |
10292 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 10293 | return TRUE; |
bb0082d6 | 10294 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10295 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10296 | #else |
b34976b6 | 10297 | return TRUE; |
252b5132 RH |
10298 | #endif |
10299 | ||
10300 | #if defined (HAVE_PSTATUS_T) | |
10301 | case NT_PSTATUS: | |
10302 | return elfcore_grok_pstatus (abfd, note); | |
10303 | #endif | |
10304 | ||
10305 | #if defined (HAVE_LWPSTATUS_T) | |
10306 | case NT_LWPSTATUS: | |
10307 | return elfcore_grok_lwpstatus (abfd, note); | |
10308 | #endif | |
10309 | ||
10310 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10311 | return elfcore_grok_prfpreg (abfd, note); | |
10312 | ||
c044fabd | 10313 | case NT_WIN32PSTATUS: |
16e9c715 | 10314 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10315 | |
c044fabd | 10316 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10317 | if (note->namesz == 6 |
10318 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10319 | return elfcore_grok_prxfpreg (abfd, note); |
10320 | else | |
b34976b6 | 10321 | return TRUE; |
ff08c6bb | 10322 | |
4339cae0 L |
10323 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10324 | if (note->namesz == 6 | |
10325 | && strcmp (note->namedata, "LINUX") == 0) | |
10326 | return elfcore_grok_xstatereg (abfd, note); | |
10327 | else | |
10328 | return TRUE; | |
10329 | ||
97753bd5 AM |
10330 | case NT_PPC_VMX: |
10331 | if (note->namesz == 6 | |
10332 | && strcmp (note->namedata, "LINUX") == 0) | |
10333 | return elfcore_grok_ppc_vmx (abfd, note); | |
10334 | else | |
10335 | return TRUE; | |
10336 | ||
89eeb0bc LM |
10337 | case NT_PPC_VSX: |
10338 | if (note->namesz == 6 | |
07d6d2b8 AM |
10339 | && strcmp (note->namedata, "LINUX") == 0) |
10340 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10341 | else |
07d6d2b8 | 10342 | return TRUE; |
89eeb0bc | 10343 | |
cb2366c1 EBM |
10344 | case NT_PPC_TAR: |
10345 | if (note->namesz == 6 | |
4b24dd1a AM |
10346 | && strcmp (note->namedata, "LINUX") == 0) |
10347 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10348 | else |
4b24dd1a | 10349 | return TRUE; |
cb2366c1 EBM |
10350 | |
10351 | case NT_PPC_PPR: | |
10352 | if (note->namesz == 6 | |
4b24dd1a AM |
10353 | && strcmp (note->namedata, "LINUX") == 0) |
10354 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10355 | else |
4b24dd1a | 10356 | return TRUE; |
cb2366c1 EBM |
10357 | |
10358 | case NT_PPC_DSCR: | |
10359 | if (note->namesz == 6 | |
4b24dd1a AM |
10360 | && strcmp (note->namedata, "LINUX") == 0) |
10361 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10362 | else |
4b24dd1a | 10363 | return TRUE; |
cb2366c1 EBM |
10364 | |
10365 | case NT_PPC_EBB: | |
10366 | if (note->namesz == 6 | |
4b24dd1a AM |
10367 | && strcmp (note->namedata, "LINUX") == 0) |
10368 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10369 | else |
4b24dd1a | 10370 | return TRUE; |
cb2366c1 EBM |
10371 | |
10372 | case NT_PPC_PMU: | |
10373 | if (note->namesz == 6 | |
4b24dd1a AM |
10374 | && strcmp (note->namedata, "LINUX") == 0) |
10375 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10376 | else |
4b24dd1a | 10377 | return TRUE; |
cb2366c1 EBM |
10378 | |
10379 | case NT_PPC_TM_CGPR: | |
10380 | if (note->namesz == 6 | |
4b24dd1a AM |
10381 | && strcmp (note->namedata, "LINUX") == 0) |
10382 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10383 | else |
4b24dd1a | 10384 | return TRUE; |
cb2366c1 EBM |
10385 | |
10386 | case NT_PPC_TM_CFPR: | |
10387 | if (note->namesz == 6 | |
4b24dd1a AM |
10388 | && strcmp (note->namedata, "LINUX") == 0) |
10389 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10390 | else |
4b24dd1a | 10391 | return TRUE; |
cb2366c1 EBM |
10392 | |
10393 | case NT_PPC_TM_CVMX: | |
10394 | if (note->namesz == 6 | |
4b24dd1a AM |
10395 | && strcmp (note->namedata, "LINUX") == 0) |
10396 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10397 | else |
4b24dd1a | 10398 | return TRUE; |
cb2366c1 EBM |
10399 | |
10400 | case NT_PPC_TM_CVSX: | |
10401 | if (note->namesz == 6 | |
4b24dd1a AM |
10402 | && strcmp (note->namedata, "LINUX") == 0) |
10403 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10404 | else |
4b24dd1a | 10405 | return TRUE; |
cb2366c1 EBM |
10406 | |
10407 | case NT_PPC_TM_SPR: | |
10408 | if (note->namesz == 6 | |
4b24dd1a AM |
10409 | && strcmp (note->namedata, "LINUX") == 0) |
10410 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10411 | else |
4b24dd1a | 10412 | return TRUE; |
cb2366c1 EBM |
10413 | |
10414 | case NT_PPC_TM_CTAR: | |
10415 | if (note->namesz == 6 | |
4b24dd1a AM |
10416 | && strcmp (note->namedata, "LINUX") == 0) |
10417 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10418 | else |
4b24dd1a | 10419 | return TRUE; |
cb2366c1 EBM |
10420 | |
10421 | case NT_PPC_TM_CPPR: | |
10422 | if (note->namesz == 6 | |
4b24dd1a AM |
10423 | && strcmp (note->namedata, "LINUX") == 0) |
10424 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10425 | else |
4b24dd1a | 10426 | return TRUE; |
cb2366c1 EBM |
10427 | |
10428 | case NT_PPC_TM_CDSCR: | |
10429 | if (note->namesz == 6 | |
4b24dd1a AM |
10430 | && strcmp (note->namedata, "LINUX") == 0) |
10431 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10432 | else |
4b24dd1a | 10433 | return TRUE; |
cb2366c1 | 10434 | |
0675e188 UW |
10435 | case NT_S390_HIGH_GPRS: |
10436 | if (note->namesz == 6 | |
07d6d2b8 AM |
10437 | && strcmp (note->namedata, "LINUX") == 0) |
10438 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10439 | else |
07d6d2b8 | 10440 | return TRUE; |
0675e188 | 10441 | |
d7eeb400 MS |
10442 | case NT_S390_TIMER: |
10443 | if (note->namesz == 6 | |
07d6d2b8 AM |
10444 | && strcmp (note->namedata, "LINUX") == 0) |
10445 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10446 | else |
07d6d2b8 | 10447 | return TRUE; |
d7eeb400 MS |
10448 | |
10449 | case NT_S390_TODCMP: | |
10450 | if (note->namesz == 6 | |
07d6d2b8 AM |
10451 | && strcmp (note->namedata, "LINUX") == 0) |
10452 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10453 | else |
07d6d2b8 | 10454 | return TRUE; |
d7eeb400 MS |
10455 | |
10456 | case NT_S390_TODPREG: | |
10457 | if (note->namesz == 6 | |
07d6d2b8 AM |
10458 | && strcmp (note->namedata, "LINUX") == 0) |
10459 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10460 | else |
07d6d2b8 | 10461 | return TRUE; |
d7eeb400 MS |
10462 | |
10463 | case NT_S390_CTRS: | |
10464 | if (note->namesz == 6 | |
07d6d2b8 AM |
10465 | && strcmp (note->namedata, "LINUX") == 0) |
10466 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10467 | else |
07d6d2b8 | 10468 | return TRUE; |
d7eeb400 MS |
10469 | |
10470 | case NT_S390_PREFIX: | |
10471 | if (note->namesz == 6 | |
07d6d2b8 AM |
10472 | && strcmp (note->namedata, "LINUX") == 0) |
10473 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10474 | else |
07d6d2b8 | 10475 | return TRUE; |
d7eeb400 | 10476 | |
355b81d9 UW |
10477 | case NT_S390_LAST_BREAK: |
10478 | if (note->namesz == 6 | |
07d6d2b8 AM |
10479 | && strcmp (note->namedata, "LINUX") == 0) |
10480 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10481 | else |
07d6d2b8 | 10482 | return TRUE; |
355b81d9 UW |
10483 | |
10484 | case NT_S390_SYSTEM_CALL: | |
10485 | if (note->namesz == 6 | |
07d6d2b8 AM |
10486 | && strcmp (note->namedata, "LINUX") == 0) |
10487 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10488 | else |
07d6d2b8 | 10489 | return TRUE; |
355b81d9 | 10490 | |
abb3f6cc NC |
10491 | case NT_S390_TDB: |
10492 | if (note->namesz == 6 | |
07d6d2b8 AM |
10493 | && strcmp (note->namedata, "LINUX") == 0) |
10494 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10495 | else |
07d6d2b8 | 10496 | return TRUE; |
abb3f6cc | 10497 | |
4ef9f41a AA |
10498 | case NT_S390_VXRS_LOW: |
10499 | if (note->namesz == 6 | |
10500 | && strcmp (note->namedata, "LINUX") == 0) | |
10501 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10502 | else | |
10503 | return TRUE; | |
10504 | ||
10505 | case NT_S390_VXRS_HIGH: | |
10506 | if (note->namesz == 6 | |
10507 | && strcmp (note->namedata, "LINUX") == 0) | |
10508 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10509 | else | |
10510 | return TRUE; | |
10511 | ||
88ab90e8 AA |
10512 | case NT_S390_GS_CB: |
10513 | if (note->namesz == 6 | |
10514 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10515 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10516 | else |
10517 | return TRUE; | |
10518 | ||
10519 | case NT_S390_GS_BC: | |
10520 | if (note->namesz == 6 | |
10521 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10522 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10523 | else |
10524 | return TRUE; | |
10525 | ||
27456742 AK |
10526 | case NT_ARC_V2: |
10527 | if (note->namesz == 6 | |
10528 | && strcmp (note->namedata, "LINUX") == 0) | |
10529 | return elfcore_grok_arc_v2 (abfd, note); | |
10530 | else | |
10531 | return TRUE; | |
10532 | ||
faa9a424 UW |
10533 | case NT_ARM_VFP: |
10534 | if (note->namesz == 6 | |
10535 | && strcmp (note->namedata, "LINUX") == 0) | |
10536 | return elfcore_grok_arm_vfp (abfd, note); | |
10537 | else | |
10538 | return TRUE; | |
10539 | ||
652451f8 YZ |
10540 | case NT_ARM_TLS: |
10541 | if (note->namesz == 6 | |
10542 | && strcmp (note->namedata, "LINUX") == 0) | |
10543 | return elfcore_grok_aarch_tls (abfd, note); | |
10544 | else | |
10545 | return TRUE; | |
10546 | ||
10547 | case NT_ARM_HW_BREAK: | |
10548 | if (note->namesz == 6 | |
10549 | && strcmp (note->namedata, "LINUX") == 0) | |
10550 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10551 | else | |
10552 | return TRUE; | |
10553 | ||
10554 | case NT_ARM_HW_WATCH: | |
10555 | if (note->namesz == 6 | |
10556 | && strcmp (note->namedata, "LINUX") == 0) | |
10557 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10558 | else | |
10559 | return TRUE; | |
10560 | ||
ad1cc4e4 AH |
10561 | case NT_ARM_SVE: |
10562 | if (note->namesz == 6 | |
10563 | && strcmp (note->namedata, "LINUX") == 0) | |
10564 | return elfcore_grok_aarch_sve (abfd, note); | |
10565 | else | |
10566 | return TRUE; | |
10567 | ||
e6c3b5bf AH |
10568 | case NT_ARM_PAC_MASK: |
10569 | if (note->namesz == 6 | |
10570 | && strcmp (note->namedata, "LINUX") == 0) | |
10571 | return elfcore_grok_aarch_pauth (abfd, note); | |
10572 | else | |
10573 | return TRUE; | |
10574 | ||
ffbda24e LM |
10575 | case NT_ARM_MORELLO: |
10576 | if (note->namesz == 6 | |
10577 | && strcmp (note->namedata, "LINUX") == 0) | |
10578 | return elfcore_grok_aarch_morello (abfd, note); | |
10579 | else | |
10580 | return TRUE; | |
10581 | ||
252b5132 RH |
10582 | case NT_PRPSINFO: |
10583 | case NT_PSINFO: | |
bb0082d6 AM |
10584 | if (bed->elf_backend_grok_psinfo) |
10585 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10586 | return TRUE; |
bb0082d6 | 10587 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10588 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10589 | #else |
b34976b6 | 10590 | return TRUE; |
252b5132 | 10591 | #endif |
3333a7c3 RM |
10592 | |
10593 | case NT_AUXV: | |
58e07198 | 10594 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10595 | |
451b7c33 TT |
10596 | case NT_FILE: |
10597 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10598 | note); | |
10599 | ||
9015683b TT |
10600 | case NT_SIGINFO: |
10601 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10602 | note); | |
5b2c414d | 10603 | |
ffbda24e LM |
10604 | case NT_MEMTAG: |
10605 | return elfcore_make_memtag_note_section (abfd, note, 0); | |
252b5132 RH |
10606 | } |
10607 | } | |
10608 | ||
718175fa JK |
10609 | static bfd_boolean |
10610 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10611 | { | |
c74f7d1c | 10612 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10613 | |
10614 | if (note->descsz == 0) | |
10615 | return FALSE; | |
10616 | ||
c74f7d1c JT |
10617 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10618 | if (build_id == NULL) | |
718175fa JK |
10619 | return FALSE; |
10620 | ||
c74f7d1c JT |
10621 | build_id->size = note->descsz; |
10622 | memcpy (build_id->data, note->descdata, note->descsz); | |
10623 | abfd->build_id = build_id; | |
718175fa JK |
10624 | |
10625 | return TRUE; | |
10626 | } | |
10627 | ||
10628 | static bfd_boolean | |
10629 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10630 | { | |
10631 | switch (note->type) | |
10632 | { | |
10633 | default: | |
10634 | return TRUE; | |
10635 | ||
46bed679 L |
10636 | case NT_GNU_PROPERTY_TYPE_0: |
10637 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10638 | ||
718175fa JK |
10639 | case NT_GNU_BUILD_ID: |
10640 | return elfobj_grok_gnu_build_id (abfd, note); | |
10641 | } | |
10642 | } | |
10643 | ||
e21e5835 NC |
10644 | static bfd_boolean |
10645 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10646 | { | |
10647 | struct sdt_note *cur = | |
7a6e0d89 AM |
10648 | (struct sdt_note *) bfd_alloc (abfd, |
10649 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10650 | |
10651 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10652 | cur->size = (bfd_size_type) note->descsz; | |
10653 | memcpy (cur->data, note->descdata, note->descsz); | |
10654 | ||
10655 | elf_tdata (abfd)->sdt_note_head = cur; | |
10656 | ||
10657 | return TRUE; | |
10658 | } | |
10659 | ||
10660 | static bfd_boolean | |
10661 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10662 | { | |
10663 | switch (note->type) | |
10664 | { | |
10665 | case NT_STAPSDT: | |
10666 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10667 | ||
10668 | default: | |
10669 | return TRUE; | |
10670 | } | |
10671 | } | |
10672 | ||
aa1ed4a9 JB |
10673 | static bfd_boolean |
10674 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10675 | { | |
10676 | size_t offset; | |
10677 | ||
b5430a3c | 10678 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10679 | { |
b5430a3c | 10680 | case ELFCLASS32: |
0064d223 JB |
10681 | if (note->descsz < 108) |
10682 | return FALSE; | |
aa1ed4a9 JB |
10683 | break; |
10684 | ||
b5430a3c | 10685 | case ELFCLASS64: |
0064d223 JB |
10686 | if (note->descsz < 120) |
10687 | return FALSE; | |
aa1ed4a9 JB |
10688 | break; |
10689 | ||
10690 | default: | |
10691 | return FALSE; | |
10692 | } | |
10693 | ||
0064d223 JB |
10694 | /* Check for version 1 in pr_version. */ |
10695 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10696 | return FALSE; | |
80a04378 | 10697 | |
0064d223 JB |
10698 | offset = 4; |
10699 | ||
10700 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10701 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10702 | offset += 4; |
10703 | else | |
10704 | { | |
10705 | offset += 4; /* Padding before pr_psinfosz. */ | |
10706 | offset += 8; | |
10707 | } | |
10708 | ||
aa1ed4a9 JB |
10709 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10710 | elf_tdata (abfd)->core->program | |
10711 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10712 | offset += 17; | |
10713 | ||
10714 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10715 | elf_tdata (abfd)->core->command | |
10716 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10717 | offset += 81; |
10718 | ||
10719 | /* Padding before pr_pid. */ | |
10720 | offset += 2; | |
10721 | ||
10722 | /* The pr_pid field was added in version "1a". */ | |
10723 | if (note->descsz < offset + 4) | |
10724 | return TRUE; | |
10725 | ||
10726 | elf_tdata (abfd)->core->pid | |
10727 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10728 | |
10729 | return TRUE; | |
10730 | } | |
10731 | ||
10732 | static bfd_boolean | |
10733 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10734 | { | |
10735 | size_t offset; | |
10736 | size_t size; | |
24d3e51b | 10737 | size_t min_size; |
aa1ed4a9 | 10738 | |
24d3e51b NC |
10739 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10740 | Also compute minimum size of this note. */ | |
b5430a3c | 10741 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10742 | { |
b5430a3c | 10743 | case ELFCLASS32: |
24d3e51b NC |
10744 | offset = 4 + 4; |
10745 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10746 | break; |
10747 | ||
b5430a3c | 10748 | case ELFCLASS64: |
24d3e51b NC |
10749 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10750 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10751 | break; |
10752 | ||
10753 | default: | |
10754 | return FALSE; | |
10755 | } | |
10756 | ||
24d3e51b NC |
10757 | if (note->descsz < min_size) |
10758 | return FALSE; | |
10759 | ||
10760 | /* Check for version 1 in pr_version. */ | |
10761 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10762 | return FALSE; | |
aa1ed4a9 | 10763 | |
24d3e51b NC |
10764 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10765 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10766 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10767 | { |
10768 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10769 | offset += 4 * 2; | |
10770 | } | |
b5430a3c | 10771 | else |
24d3e51b NC |
10772 | { |
10773 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10774 | offset += 8 * 2; | |
10775 | } | |
aa1ed4a9 | 10776 | |
24d3e51b | 10777 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10778 | offset += 4; |
10779 | ||
24d3e51b | 10780 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10781 | if (elf_tdata (abfd)->core->signal == 0) |
10782 | elf_tdata (abfd)->core->signal | |
10783 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10784 | offset += 4; | |
10785 | ||
24d3e51b | 10786 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10787 | elf_tdata (abfd)->core->lwpid |
10788 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10789 | offset += 4; | |
10790 | ||
24d3e51b | 10791 | /* Padding before pr_reg. */ |
b5430a3c | 10792 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10793 | offset += 4; |
10794 | ||
24d3e51b NC |
10795 | /* Make sure that there is enough data remaining in the note. */ |
10796 | if ((note->descsz - offset) < size) | |
10797 | return FALSE; | |
10798 | ||
aa1ed4a9 JB |
10799 | /* Make a ".reg/999" section and a ".reg" section. */ |
10800 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10801 | size, note->descpos + offset); | |
10802 | } | |
10803 | ||
10804 | static bfd_boolean | |
10805 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10806 | { | |
544c67cd JB |
10807 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10808 | ||
aa1ed4a9 JB |
10809 | switch (note->type) |
10810 | { | |
10811 | case NT_PRSTATUS: | |
544c67cd JB |
10812 | if (bed->elf_backend_grok_freebsd_prstatus) |
10813 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10814 | return TRUE; | |
aa1ed4a9 JB |
10815 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10816 | ||
10817 | case NT_FPREGSET: | |
10818 | return elfcore_grok_prfpreg (abfd, note); | |
10819 | ||
10820 | case NT_PRPSINFO: | |
10821 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10822 | ||
10823 | case NT_FREEBSD_THRMISC: | |
10824 | if (note->namesz == 8) | |
10825 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10826 | else | |
10827 | return TRUE; | |
10828 | ||
ddb2bbcf JB |
10829 | case NT_FREEBSD_PROCSTAT_PROC: |
10830 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10831 | note); | |
10832 | ||
10833 | case NT_FREEBSD_PROCSTAT_FILES: | |
10834 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10835 | note); | |
10836 | ||
10837 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10838 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10839 | note); | |
10840 | ||
3350c5f5 | 10841 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10842 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10843 | |
aa1ed4a9 JB |
10844 | case NT_X86_XSTATE: |
10845 | if (note->namesz == 8) | |
10846 | return elfcore_grok_xstatereg (abfd, note); | |
10847 | else | |
10848 | return TRUE; | |
10849 | ||
e6f3b9c3 JB |
10850 | case NT_FREEBSD_PTLWPINFO: |
10851 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10852 | note); | |
10853 | ||
6d5be5d6 JB |
10854 | case NT_ARM_VFP: |
10855 | return elfcore_grok_arm_vfp (abfd, note); | |
10856 | ||
aa1ed4a9 JB |
10857 | default: |
10858 | return TRUE; | |
10859 | } | |
10860 | } | |
10861 | ||
b34976b6 | 10862 | static bfd_boolean |
217aa764 | 10863 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10864 | { |
10865 | char *cp; | |
10866 | ||
10867 | cp = strchr (note->namedata, '@'); | |
10868 | if (cp != NULL) | |
10869 | { | |
d2b64500 | 10870 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10871 | return TRUE; |
50b2bdb7 | 10872 | } |
b34976b6 | 10873 | return FALSE; |
50b2bdb7 AM |
10874 | } |
10875 | ||
b34976b6 | 10876 | static bfd_boolean |
217aa764 | 10877 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10878 | { |
80a04378 NC |
10879 | if (note->descsz <= 0x7c + 31) |
10880 | return FALSE; | |
10881 | ||
50b2bdb7 | 10882 | /* Signal number at offset 0x08. */ |
228e534f | 10883 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10884 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10885 | ||
10886 | /* Process ID at offset 0x50. */ | |
228e534f | 10887 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10888 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10889 | ||
10890 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10891 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10892 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10893 | ||
7720ba9f MK |
10894 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10895 | note); | |
50b2bdb7 AM |
10896 | } |
10897 | ||
b34976b6 | 10898 | static bfd_boolean |
217aa764 | 10899 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10900 | { |
10901 | int lwp; | |
10902 | ||
10903 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10904 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10905 | |
58e07198 | 10906 | switch (note->type) |
50b2bdb7 | 10907 | { |
58e07198 | 10908 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10909 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10910 | find this note before any of the others, which is fine, |
10911 | since the kernel writes this note out first when it | |
10912 | creates a core file. */ | |
50b2bdb7 | 10913 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10914 | #ifdef NT_NETBSDCORE_AUXV |
10915 | case NT_NETBSDCORE_AUXV: | |
10916 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10917 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
06d949ec KR |
10918 | #endif |
10919 | #ifdef NT_NETBSDCORE_LWPSTATUS | |
10920 | case NT_NETBSDCORE_LWPSTATUS: | |
10921 | return elfcore_make_note_pseudosection (abfd, | |
10922 | ".note.netbsdcore.lwpstatus", | |
10923 | note); | |
58e07198 CZ |
10924 | #endif |
10925 | default: | |
10926 | break; | |
50b2bdb7 AM |
10927 | } |
10928 | ||
06d949ec | 10929 | /* As of March 2020 there are no other machine-independent notes |
b4db1224 JT |
10930 | defined for NetBSD core files. If the note type is less |
10931 | than the start of the machine-dependent note types, we don't | |
10932 | understand it. */ | |
47d9a591 | 10933 | |
b4db1224 | 10934 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10935 | return TRUE; |
50b2bdb7 AM |
10936 | |
10937 | ||
10938 | switch (bfd_get_arch (abfd)) | |
10939 | { | |
08a40648 AM |
10940 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10941 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 | 10942 | |
015ec493 | 10943 | case bfd_arch_aarch64: |
50b2bdb7 AM |
10944 | case bfd_arch_alpha: |
10945 | case bfd_arch_sparc: | |
10946 | switch (note->type) | |
08a40648 AM |
10947 | { |
10948 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10949 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10950 | |
08a40648 AM |
10951 | case NT_NETBSDCORE_FIRSTMACH+2: |
10952 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10953 | |
08a40648 AM |
10954 | default: |
10955 | return TRUE; | |
10956 | } | |
50b2bdb7 | 10957 | |
58e07198 CZ |
10958 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
10959 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
10960 | structure which lacks GBR. */ | |
10961 | ||
10962 | case bfd_arch_sh: | |
10963 | switch (note->type) | |
10964 | { | |
10965 | case NT_NETBSDCORE_FIRSTMACH+3: | |
10966 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10967 | ||
10968 | case NT_NETBSDCORE_FIRSTMACH+5: | |
10969 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10970 | ||
10971 | default: | |
10972 | return TRUE; | |
10973 | } | |
10974 | ||
08a40648 AM |
10975 | /* On all other arch's, PT_GETREGS == mach+1 and |
10976 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10977 | |
10978 | default: | |
10979 | switch (note->type) | |
08a40648 AM |
10980 | { |
10981 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10982 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10983 | |
08a40648 AM |
10984 | case NT_NETBSDCORE_FIRSTMACH+3: |
10985 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10986 | |
08a40648 AM |
10987 | default: |
10988 | return TRUE; | |
10989 | } | |
50b2bdb7 AM |
10990 | } |
10991 | /* NOTREACHED */ | |
10992 | } | |
10993 | ||
67cc5033 MK |
10994 | static bfd_boolean |
10995 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10996 | { | |
80a04378 NC |
10997 | if (note->descsz <= 0x48 + 31) |
10998 | return FALSE; | |
10999 | ||
67cc5033 | 11000 | /* Signal number at offset 0x08. */ |
228e534f | 11001 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
11002 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
11003 | ||
11004 | /* Process ID at offset 0x20. */ | |
228e534f | 11005 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
11006 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
11007 | ||
11008 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 11009 | elf_tdata (abfd)->core->command |
67cc5033 MK |
11010 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
11011 | ||
11012 | return TRUE; | |
11013 | } | |
11014 | ||
11015 | static bfd_boolean | |
11016 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
11017 | { | |
11018 | if (note->type == NT_OPENBSD_PROCINFO) | |
11019 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
11020 | ||
11021 | if (note->type == NT_OPENBSD_REGS) | |
11022 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11023 | ||
11024 | if (note->type == NT_OPENBSD_FPREGS) | |
11025 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11026 | ||
11027 | if (note->type == NT_OPENBSD_XFPREGS) | |
11028 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
11029 | ||
11030 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 11031 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
11032 | |
11033 | if (note->type == NT_OPENBSD_WCOOKIE) | |
11034 | { | |
11035 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
11036 | SEC_HAS_CONTENTS); | |
11037 | ||
11038 | if (sect == NULL) | |
11039 | return FALSE; | |
11040 | sect->size = note->descsz; | |
11041 | sect->filepos = note->descpos; | |
11042 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
11043 | ||
11044 | return TRUE; | |
11045 | } | |
11046 | ||
11047 | return TRUE; | |
11048 | } | |
11049 | ||
07c6e936 | 11050 | static bfd_boolean |
d3fd4074 | 11051 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
11052 | { |
11053 | void *ddata = note->descdata; | |
11054 | char buf[100]; | |
11055 | char *name; | |
11056 | asection *sect; | |
f8843e87 AM |
11057 | short sig; |
11058 | unsigned flags; | |
07c6e936 | 11059 | |
80a04378 NC |
11060 | if (note->descsz < 16) |
11061 | return FALSE; | |
11062 | ||
07c6e936 | 11063 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 11064 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 11065 | |
f8843e87 AM |
11066 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
11067 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
11068 | ||
11069 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
11070 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
11071 | |
11072 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
11073 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
11074 | { | |
228e534f AM |
11075 | elf_tdata (abfd)->core->signal = sig; |
11076 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 11077 | } |
07c6e936 | 11078 | |
f8843e87 AM |
11079 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
11080 | do not come from signals so we make sure we set the current | |
11081 | thread just in case. */ | |
11082 | if (flags & 0x00000080) | |
228e534f | 11083 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
11084 | |
11085 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 11086 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 11087 | |
a50b1753 | 11088 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
11089 | if (name == NULL) |
11090 | return FALSE; | |
11091 | strcpy (name, buf); | |
11092 | ||
117ed4f8 | 11093 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
11094 | if (sect == NULL) |
11095 | return FALSE; | |
11096 | ||
07d6d2b8 AM |
11097 | sect->size = note->descsz; |
11098 | sect->filepos = note->descpos; | |
07c6e936 NC |
11099 | sect->alignment_power = 2; |
11100 | ||
11101 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
11102 | } | |
11103 | ||
11104 | static bfd_boolean | |
d69f560c KW |
11105 | elfcore_grok_nto_regs (bfd *abfd, |
11106 | Elf_Internal_Note *note, | |
d3fd4074 | 11107 | long tid, |
d69f560c | 11108 | char *base) |
07c6e936 NC |
11109 | { |
11110 | char buf[100]; | |
11111 | char *name; | |
11112 | asection *sect; | |
11113 | ||
d69f560c | 11114 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 11115 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 11116 | |
a50b1753 | 11117 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
11118 | if (name == NULL) |
11119 | return FALSE; | |
11120 | strcpy (name, buf); | |
11121 | ||
117ed4f8 | 11122 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
11123 | if (sect == NULL) |
11124 | return FALSE; | |
11125 | ||
07d6d2b8 AM |
11126 | sect->size = note->descsz; |
11127 | sect->filepos = note->descpos; | |
07c6e936 NC |
11128 | sect->alignment_power = 2; |
11129 | ||
f8843e87 | 11130 | /* This is the current thread. */ |
228e534f | 11131 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 11132 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
11133 | |
11134 | return TRUE; | |
07c6e936 NC |
11135 | } |
11136 | ||
11137 | #define BFD_QNT_CORE_INFO 7 | |
11138 | #define BFD_QNT_CORE_STATUS 8 | |
11139 | #define BFD_QNT_CORE_GREG 9 | |
11140 | #define BFD_QNT_CORE_FPREG 10 | |
11141 | ||
11142 | static bfd_boolean | |
217aa764 | 11143 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
11144 | { |
11145 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 11146 | tid from the previous call to pass down to the next gregs |
07c6e936 | 11147 | function. */ |
d3fd4074 | 11148 | static long tid = 1; |
07c6e936 NC |
11149 | |
11150 | switch (note->type) | |
11151 | { | |
d69f560c KW |
11152 | case BFD_QNT_CORE_INFO: |
11153 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
11154 | case BFD_QNT_CORE_STATUS: | |
11155 | return elfcore_grok_nto_status (abfd, note, &tid); | |
11156 | case BFD_QNT_CORE_GREG: | |
11157 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
11158 | case BFD_QNT_CORE_FPREG: | |
11159 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
11160 | default: | |
11161 | return TRUE; | |
07c6e936 NC |
11162 | } |
11163 | } | |
11164 | ||
b15fa79e AM |
11165 | static bfd_boolean |
11166 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
11167 | { | |
11168 | char *name; | |
11169 | asection *sect; | |
11170 | size_t len; | |
11171 | ||
11172 | /* Use note name as section name. */ | |
11173 | len = note->namesz; | |
a50b1753 | 11174 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
11175 | if (name == NULL) |
11176 | return FALSE; | |
11177 | memcpy (name, note->namedata, len); | |
11178 | name[len - 1] = '\0'; | |
11179 | ||
11180 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
11181 | if (sect == NULL) | |
11182 | return FALSE; | |
11183 | ||
07d6d2b8 AM |
11184 | sect->size = note->descsz; |
11185 | sect->filepos = note->descpos; | |
b15fa79e AM |
11186 | sect->alignment_power = 1; |
11187 | ||
11188 | return TRUE; | |
11189 | } | |
11190 | ||
7c76fa91 MS |
11191 | /* Function: elfcore_write_note |
11192 | ||
47d9a591 | 11193 | Inputs: |
a39f3346 | 11194 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
11195 | name of note |
11196 | type of note | |
11197 | data for note | |
11198 | size of data for note | |
11199 | ||
a39f3346 AM |
11200 | Writes note to end of buffer. ELF64 notes are written exactly as |
11201 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
11202 | that they ought to have 8-byte namesz and descsz field, and have | |
11203 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
11204 | ||
7c76fa91 | 11205 | Return: |
a39f3346 | 11206 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
11207 | |
11208 | char * | |
a39f3346 | 11209 | elfcore_write_note (bfd *abfd, |
217aa764 | 11210 | char *buf, |
a39f3346 | 11211 | int *bufsiz, |
217aa764 | 11212 | const char *name, |
a39f3346 | 11213 | int type, |
217aa764 | 11214 | const void *input, |
a39f3346 | 11215 | int size) |
7c76fa91 MS |
11216 | { |
11217 | Elf_External_Note *xnp; | |
d4c88bbb | 11218 | size_t namesz; |
d4c88bbb | 11219 | size_t newspace; |
a39f3346 | 11220 | char *dest; |
7c76fa91 | 11221 | |
d4c88bbb | 11222 | namesz = 0; |
d4c88bbb | 11223 | if (name != NULL) |
a39f3346 | 11224 | namesz = strlen (name) + 1; |
d4c88bbb | 11225 | |
a39f3346 | 11226 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 11227 | |
a50b1753 | 11228 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
11229 | if (buf == NULL) |
11230 | return buf; | |
a39f3346 | 11231 | dest = buf + *bufsiz; |
7c76fa91 MS |
11232 | *bufsiz += newspace; |
11233 | xnp = (Elf_External_Note *) dest; | |
11234 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
11235 | H_PUT_32 (abfd, size, xnp->descsz); | |
11236 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
11237 | dest = xnp->name; |
11238 | if (name != NULL) | |
11239 | { | |
11240 | memcpy (dest, name, namesz); | |
11241 | dest += namesz; | |
a39f3346 | 11242 | while (namesz & 3) |
d4c88bbb AM |
11243 | { |
11244 | *dest++ = '\0'; | |
a39f3346 | 11245 | ++namesz; |
d4c88bbb AM |
11246 | } |
11247 | } | |
11248 | memcpy (dest, input, size); | |
a39f3346 AM |
11249 | dest += size; |
11250 | while (size & 3) | |
11251 | { | |
11252 | *dest++ = '\0'; | |
11253 | ++size; | |
11254 | } | |
11255 | return buf; | |
7c76fa91 MS |
11256 | } |
11257 | ||
602f1657 AM |
11258 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11259 | possible string truncation. The "truncation" is not a bug. We | |
11260 | have an external representation of structs with fields that are not | |
11261 | necessarily NULL terminated and corresponding internal | |
11262 | representation fields that are one larger so that they can always | |
11263 | be NULL terminated. | |
11264 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11265 | diagnostics inside functions, giving a hard error if you try to use | |
11266 | the finer control available with later versions. | |
11267 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11268 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11269 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11270 | (*) Depending on your system header files! */ | |
d99b4b92 | 11271 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11272 | # pragma GCC diagnostic push |
11273 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11274 | #endif |
7c76fa91 | 11275 | char * |
217aa764 AM |
11276 | elfcore_write_prpsinfo (bfd *abfd, |
11277 | char *buf, | |
11278 | int *bufsiz, | |
11279 | const char *fname, | |
11280 | const char *psargs) | |
7c76fa91 | 11281 | { |
183e98be AM |
11282 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11283 | ||
11284 | if (bed->elf_backend_write_core_note != NULL) | |
11285 | { | |
11286 | char *ret; | |
11287 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11288 | NT_PRPSINFO, fname, psargs); | |
11289 | if (ret != NULL) | |
11290 | return ret; | |
11291 | } | |
7c76fa91 | 11292 | |
1f20dca5 | 11293 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11294 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11295 | if (bed->s->elfclass == ELFCLASS32) |
11296 | { | |
602f1657 | 11297 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11298 | psinfo32_t data; |
11299 | int note_type = NT_PSINFO; | |
602f1657 | 11300 | # else |
183e98be AM |
11301 | prpsinfo32_t data; |
11302 | int note_type = NT_PRPSINFO; | |
602f1657 | 11303 | # endif |
183e98be AM |
11304 | |
11305 | memset (&data, 0, sizeof (data)); | |
11306 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11307 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11308 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11309 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11310 | } |
11311 | else | |
602f1657 | 11312 | # endif |
183e98be | 11313 | { |
602f1657 | 11314 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11315 | psinfo_t data; |
11316 | int note_type = NT_PSINFO; | |
602f1657 | 11317 | # else |
183e98be AM |
11318 | prpsinfo_t data; |
11319 | int note_type = NT_PRPSINFO; | |
602f1657 | 11320 | # endif |
7c76fa91 | 11321 | |
183e98be AM |
11322 | memset (&data, 0, sizeof (data)); |
11323 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11324 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11325 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11326 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11327 | } |
7c76fa91 MS |
11328 | #endif /* PSINFO_T or PRPSINFO_T */ |
11329 | ||
1f20dca5 UW |
11330 | free (buf); |
11331 | return NULL; | |
11332 | } | |
d99b4b92 | 11333 | #if GCC_VERSION >= 8000 |
602f1657 | 11334 | # pragma GCC diagnostic pop |
d99b4b92 | 11335 | #endif |
1f20dca5 | 11336 | |
70a38d42 SDJ |
11337 | char * |
11338 | elfcore_write_linux_prpsinfo32 | |
11339 | (bfd *abfd, char *buf, int *bufsiz, | |
11340 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11341 | { | |
a2f63b2e MR |
11342 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11343 | { | |
11344 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11345 | ||
11346 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11347 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11348 | &data, sizeof (data)); | |
11349 | } | |
11350 | else | |
11351 | { | |
11352 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11353 | |
a2f63b2e MR |
11354 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11355 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11356 | &data, sizeof (data)); | |
11357 | } | |
70a38d42 SDJ |
11358 | } |
11359 | ||
11360 | char * | |
11361 | elfcore_write_linux_prpsinfo64 | |
11362 | (bfd *abfd, char *buf, int *bufsiz, | |
11363 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11364 | { | |
3c9a7b0d MR |
11365 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11366 | { | |
11367 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11368 | ||
11369 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11370 | return elfcore_write_note (abfd, buf, bufsiz, | |
11371 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11372 | } | |
11373 | else | |
11374 | { | |
11375 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11376 | |
3c9a7b0d MR |
11377 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11378 | return elfcore_write_note (abfd, buf, bufsiz, | |
11379 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11380 | } | |
70a38d42 SDJ |
11381 | } |
11382 | ||
7c76fa91 | 11383 | char * |
217aa764 AM |
11384 | elfcore_write_prstatus (bfd *abfd, |
11385 | char *buf, | |
11386 | int *bufsiz, | |
11387 | long pid, | |
11388 | int cursig, | |
11389 | const void *gregs) | |
7c76fa91 | 11390 | { |
183e98be | 11391 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11392 | |
183e98be AM |
11393 | if (bed->elf_backend_write_core_note != NULL) |
11394 | { | |
11395 | char *ret; | |
11396 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11397 | NT_PRSTATUS, | |
11398 | pid, cursig, gregs); | |
11399 | if (ret != NULL) | |
11400 | return ret; | |
11401 | } | |
11402 | ||
1f20dca5 | 11403 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11404 | #if defined (HAVE_PRSTATUS32_T) |
11405 | if (bed->s->elfclass == ELFCLASS32) | |
11406 | { | |
11407 | prstatus32_t prstat; | |
11408 | ||
11409 | memset (&prstat, 0, sizeof (prstat)); | |
11410 | prstat.pr_pid = pid; | |
11411 | prstat.pr_cursig = cursig; | |
11412 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11413 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11414 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11415 | } | |
11416 | else | |
11417 | #endif | |
11418 | { | |
11419 | prstatus_t prstat; | |
11420 | ||
11421 | memset (&prstat, 0, sizeof (prstat)); | |
11422 | prstat.pr_pid = pid; | |
11423 | prstat.pr_cursig = cursig; | |
11424 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11425 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11426 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11427 | } | |
7c76fa91 MS |
11428 | #endif /* HAVE_PRSTATUS_T */ |
11429 | ||
1f20dca5 UW |
11430 | free (buf); |
11431 | return NULL; | |
11432 | } | |
11433 | ||
51316059 MS |
11434 | #if defined (HAVE_LWPSTATUS_T) |
11435 | char * | |
217aa764 AM |
11436 | elfcore_write_lwpstatus (bfd *abfd, |
11437 | char *buf, | |
11438 | int *bufsiz, | |
11439 | long pid, | |
11440 | int cursig, | |
11441 | const void *gregs) | |
51316059 MS |
11442 | { |
11443 | lwpstatus_t lwpstat; | |
183e98be | 11444 | const char *note_name = "CORE"; |
51316059 MS |
11445 | |
11446 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11447 | lwpstat.pr_lwpid = pid >> 16; | |
11448 | lwpstat.pr_cursig = cursig; | |
11449 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11450 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11451 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11452 | #if !defined(gregs) | |
11453 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11454 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11455 | #else | |
11456 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11457 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11458 | #endif | |
11459 | #endif | |
47d9a591 | 11460 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11461 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11462 | } | |
11463 | #endif /* HAVE_LWPSTATUS_T */ | |
11464 | ||
7c76fa91 MS |
11465 | #if defined (HAVE_PSTATUS_T) |
11466 | char * | |
217aa764 AM |
11467 | elfcore_write_pstatus (bfd *abfd, |
11468 | char *buf, | |
11469 | int *bufsiz, | |
11470 | long pid, | |
6c10990d NC |
11471 | int cursig ATTRIBUTE_UNUSED, |
11472 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11473 | { |
183e98be AM |
11474 | const char *note_name = "CORE"; |
11475 | #if defined (HAVE_PSTATUS32_T) | |
11476 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11477 | |
183e98be AM |
11478 | if (bed->s->elfclass == ELFCLASS32) |
11479 | { | |
11480 | pstatus32_t pstat; | |
11481 | ||
11482 | memset (&pstat, 0, sizeof (pstat)); | |
11483 | pstat.pr_pid = pid & 0xffff; | |
11484 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11485 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11486 | return buf; | |
11487 | } | |
11488 | else | |
11489 | #endif | |
11490 | { | |
11491 | pstatus_t pstat; | |
11492 | ||
11493 | memset (&pstat, 0, sizeof (pstat)); | |
11494 | pstat.pr_pid = pid & 0xffff; | |
11495 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11496 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11497 | return buf; | |
11498 | } | |
7c76fa91 MS |
11499 | } |
11500 | #endif /* HAVE_PSTATUS_T */ | |
11501 | ||
11502 | char * | |
217aa764 AM |
11503 | elfcore_write_prfpreg (bfd *abfd, |
11504 | char *buf, | |
11505 | int *bufsiz, | |
11506 | const void *fpregs, | |
11507 | int size) | |
7c76fa91 | 11508 | { |
183e98be | 11509 | const char *note_name = "CORE"; |
47d9a591 | 11510 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11511 | note_name, NT_FPREGSET, fpregs, size); |
11512 | } | |
11513 | ||
11514 | char * | |
217aa764 AM |
11515 | elfcore_write_prxfpreg (bfd *abfd, |
11516 | char *buf, | |
11517 | int *bufsiz, | |
11518 | const void *xfpregs, | |
11519 | int size) | |
7c76fa91 MS |
11520 | { |
11521 | char *note_name = "LINUX"; | |
47d9a591 | 11522 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11523 | note_name, NT_PRXFPREG, xfpregs, size); |
11524 | } | |
11525 | ||
4339cae0 L |
11526 | char * |
11527 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11528 | const void *xfpregs, int size) | |
11529 | { | |
97de3545 JB |
11530 | char *note_name; |
11531 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11532 | note_name = "FreeBSD"; | |
11533 | else | |
11534 | note_name = "LINUX"; | |
4339cae0 L |
11535 | return elfcore_write_note (abfd, buf, bufsiz, |
11536 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11537 | } | |
11538 | ||
97753bd5 AM |
11539 | char * |
11540 | elfcore_write_ppc_vmx (bfd *abfd, | |
11541 | char *buf, | |
11542 | int *bufsiz, | |
11543 | const void *ppc_vmx, | |
11544 | int size) | |
11545 | { | |
11546 | char *note_name = "LINUX"; | |
11547 | return elfcore_write_note (abfd, buf, bufsiz, | |
11548 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11549 | } | |
11550 | ||
89eeb0bc LM |
11551 | char * |
11552 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11553 | char *buf, |
11554 | int *bufsiz, | |
11555 | const void *ppc_vsx, | |
11556 | int size) | |
89eeb0bc LM |
11557 | { |
11558 | char *note_name = "LINUX"; | |
11559 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11560 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11561 | } |
11562 | ||
cb2366c1 EBM |
11563 | char * |
11564 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11565 | char *buf, |
11566 | int *bufsiz, | |
11567 | const void *ppc_tar, | |
11568 | int size) | |
cb2366c1 EBM |
11569 | { |
11570 | char *note_name = "LINUX"; | |
11571 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11572 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11573 | } |
11574 | ||
11575 | char * | |
11576 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11577 | char *buf, |
11578 | int *bufsiz, | |
11579 | const void *ppc_ppr, | |
11580 | int size) | |
cb2366c1 EBM |
11581 | { |
11582 | char *note_name = "LINUX"; | |
11583 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11584 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11585 | } |
11586 | ||
11587 | char * | |
11588 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11589 | char *buf, |
11590 | int *bufsiz, | |
11591 | const void *ppc_dscr, | |
11592 | int size) | |
cb2366c1 EBM |
11593 | { |
11594 | char *note_name = "LINUX"; | |
11595 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11596 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11597 | } |
11598 | ||
11599 | char * | |
11600 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11601 | char *buf, |
11602 | int *bufsiz, | |
11603 | const void *ppc_ebb, | |
11604 | int size) | |
cb2366c1 EBM |
11605 | { |
11606 | char *note_name = "LINUX"; | |
11607 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11608 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11609 | } |
11610 | ||
11611 | char * | |
11612 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11613 | char *buf, |
11614 | int *bufsiz, | |
11615 | const void *ppc_pmu, | |
11616 | int size) | |
cb2366c1 EBM |
11617 | { |
11618 | char *note_name = "LINUX"; | |
11619 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11620 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11621 | } |
11622 | ||
11623 | char * | |
11624 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11625 | char *buf, |
11626 | int *bufsiz, | |
11627 | const void *ppc_tm_cgpr, | |
11628 | int size) | |
cb2366c1 EBM |
11629 | { |
11630 | char *note_name = "LINUX"; | |
11631 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11632 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11633 | } |
11634 | ||
11635 | char * | |
11636 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11637 | char *buf, |
11638 | int *bufsiz, | |
11639 | const void *ppc_tm_cfpr, | |
11640 | int size) | |
cb2366c1 EBM |
11641 | { |
11642 | char *note_name = "LINUX"; | |
11643 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11644 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11645 | } |
11646 | ||
11647 | char * | |
11648 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11649 | char *buf, |
11650 | int *bufsiz, | |
11651 | const void *ppc_tm_cvmx, | |
11652 | int size) | |
cb2366c1 EBM |
11653 | { |
11654 | char *note_name = "LINUX"; | |
11655 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11656 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11657 | } |
11658 | ||
11659 | char * | |
11660 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11661 | char *buf, |
11662 | int *bufsiz, | |
11663 | const void *ppc_tm_cvsx, | |
11664 | int size) | |
cb2366c1 EBM |
11665 | { |
11666 | char *note_name = "LINUX"; | |
11667 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11668 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11669 | } |
11670 | ||
11671 | char * | |
11672 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11673 | char *buf, |
11674 | int *bufsiz, | |
11675 | const void *ppc_tm_spr, | |
11676 | int size) | |
cb2366c1 EBM |
11677 | { |
11678 | char *note_name = "LINUX"; | |
11679 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11680 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11681 | } |
11682 | ||
11683 | char * | |
11684 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11685 | char *buf, |
11686 | int *bufsiz, | |
11687 | const void *ppc_tm_ctar, | |
11688 | int size) | |
cb2366c1 EBM |
11689 | { |
11690 | char *note_name = "LINUX"; | |
11691 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11692 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11693 | } |
11694 | ||
11695 | char * | |
11696 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11697 | char *buf, |
11698 | int *bufsiz, | |
11699 | const void *ppc_tm_cppr, | |
11700 | int size) | |
cb2366c1 EBM |
11701 | { |
11702 | char *note_name = "LINUX"; | |
11703 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11704 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11705 | } |
11706 | ||
11707 | char * | |
11708 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11709 | char *buf, |
11710 | int *bufsiz, | |
11711 | const void *ppc_tm_cdscr, | |
11712 | int size) | |
cb2366c1 EBM |
11713 | { |
11714 | char *note_name = "LINUX"; | |
11715 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11716 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11717 | } |
11718 | ||
0675e188 UW |
11719 | static char * |
11720 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11721 | char *buf, | |
11722 | int *bufsiz, | |
11723 | const void *s390_high_gprs, | |
11724 | int size) | |
11725 | { | |
11726 | char *note_name = "LINUX"; | |
11727 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11728 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11729 | s390_high_gprs, size); |
11730 | } | |
11731 | ||
d7eeb400 MS |
11732 | char * |
11733 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11734 | char *buf, |
11735 | int *bufsiz, | |
11736 | const void *s390_timer, | |
11737 | int size) | |
d7eeb400 MS |
11738 | { |
11739 | char *note_name = "LINUX"; | |
11740 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11741 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11742 | } |
11743 | ||
11744 | char * | |
11745 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11746 | char *buf, |
11747 | int *bufsiz, | |
11748 | const void *s390_todcmp, | |
11749 | int size) | |
d7eeb400 MS |
11750 | { |
11751 | char *note_name = "LINUX"; | |
11752 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11753 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11754 | } |
11755 | ||
11756 | char * | |
11757 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11758 | char *buf, |
11759 | int *bufsiz, | |
11760 | const void *s390_todpreg, | |
11761 | int size) | |
d7eeb400 MS |
11762 | { |
11763 | char *note_name = "LINUX"; | |
11764 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11765 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11766 | } |
11767 | ||
11768 | char * | |
11769 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11770 | char *buf, |
11771 | int *bufsiz, | |
11772 | const void *s390_ctrs, | |
11773 | int size) | |
d7eeb400 MS |
11774 | { |
11775 | char *note_name = "LINUX"; | |
11776 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11777 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11778 | } |
11779 | ||
11780 | char * | |
11781 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11782 | char *buf, |
11783 | int *bufsiz, | |
11784 | const void *s390_prefix, | |
11785 | int size) | |
d7eeb400 MS |
11786 | { |
11787 | char *note_name = "LINUX"; | |
11788 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11789 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11790 | } |
11791 | ||
355b81d9 UW |
11792 | char * |
11793 | elfcore_write_s390_last_break (bfd *abfd, | |
11794 | char *buf, | |
11795 | int *bufsiz, | |
11796 | const void *s390_last_break, | |
11797 | int size) | |
11798 | { | |
11799 | char *note_name = "LINUX"; | |
11800 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11801 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11802 | s390_last_break, size); |
11803 | } | |
11804 | ||
11805 | char * | |
11806 | elfcore_write_s390_system_call (bfd *abfd, | |
11807 | char *buf, | |
11808 | int *bufsiz, | |
11809 | const void *s390_system_call, | |
11810 | int size) | |
11811 | { | |
11812 | char *note_name = "LINUX"; | |
11813 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11814 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11815 | s390_system_call, size); |
11816 | } | |
11817 | ||
abb3f6cc NC |
11818 | char * |
11819 | elfcore_write_s390_tdb (bfd *abfd, | |
11820 | char *buf, | |
11821 | int *bufsiz, | |
11822 | const void *s390_tdb, | |
11823 | int size) | |
11824 | { | |
11825 | char *note_name = "LINUX"; | |
11826 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11827 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11828 | } |
11829 | ||
4ef9f41a AA |
11830 | char * |
11831 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11832 | char *buf, | |
11833 | int *bufsiz, | |
11834 | const void *s390_vxrs_low, | |
11835 | int size) | |
11836 | { | |
11837 | char *note_name = "LINUX"; | |
11838 | return elfcore_write_note (abfd, buf, bufsiz, | |
11839 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11840 | } | |
11841 | ||
11842 | char * | |
11843 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11844 | char *buf, | |
11845 | int *bufsiz, | |
11846 | const void *s390_vxrs_high, | |
11847 | int size) | |
11848 | { | |
11849 | char *note_name = "LINUX"; | |
11850 | return elfcore_write_note (abfd, buf, bufsiz, | |
11851 | note_name, NT_S390_VXRS_HIGH, | |
11852 | s390_vxrs_high, size); | |
11853 | } | |
11854 | ||
88ab90e8 AA |
11855 | char * |
11856 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11857 | char *buf, | |
11858 | int *bufsiz, | |
11859 | const void *s390_gs_cb, | |
11860 | int size) | |
11861 | { | |
11862 | char *note_name = "LINUX"; | |
11863 | return elfcore_write_note (abfd, buf, bufsiz, | |
11864 | note_name, NT_S390_GS_CB, | |
11865 | s390_gs_cb, size); | |
11866 | } | |
11867 | ||
11868 | char * | |
11869 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11870 | char *buf, | |
11871 | int *bufsiz, | |
11872 | const void *s390_gs_bc, | |
11873 | int size) | |
11874 | { | |
11875 | char *note_name = "LINUX"; | |
11876 | return elfcore_write_note (abfd, buf, bufsiz, | |
11877 | note_name, NT_S390_GS_BC, | |
11878 | s390_gs_bc, size); | |
11879 | } | |
11880 | ||
faa9a424 UW |
11881 | char * |
11882 | elfcore_write_arm_vfp (bfd *abfd, | |
11883 | char *buf, | |
11884 | int *bufsiz, | |
11885 | const void *arm_vfp, | |
11886 | int size) | |
11887 | { | |
11888 | char *note_name = "LINUX"; | |
11889 | return elfcore_write_note (abfd, buf, bufsiz, | |
11890 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11891 | } | |
11892 | ||
652451f8 YZ |
11893 | char * |
11894 | elfcore_write_aarch_tls (bfd *abfd, | |
11895 | char *buf, | |
11896 | int *bufsiz, | |
11897 | const void *aarch_tls, | |
11898 | int size) | |
11899 | { | |
11900 | char *note_name = "LINUX"; | |
11901 | return elfcore_write_note (abfd, buf, bufsiz, | |
11902 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11903 | } | |
11904 | ||
11905 | char * | |
11906 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11907 | char *buf, | |
11908 | int *bufsiz, | |
11909 | const void *aarch_hw_break, | |
11910 | int size) | |
11911 | { | |
11912 | char *note_name = "LINUX"; | |
11913 | return elfcore_write_note (abfd, buf, bufsiz, | |
11914 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11915 | } | |
11916 | ||
11917 | char * | |
11918 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11919 | char *buf, | |
11920 | int *bufsiz, | |
11921 | const void *aarch_hw_watch, | |
11922 | int size) | |
11923 | { | |
11924 | char *note_name = "LINUX"; | |
11925 | return elfcore_write_note (abfd, buf, bufsiz, | |
11926 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11927 | } | |
11928 | ||
ad1cc4e4 AH |
11929 | char * |
11930 | elfcore_write_aarch_sve (bfd *abfd, | |
11931 | char *buf, | |
11932 | int *bufsiz, | |
11933 | const void *aarch_sve, | |
11934 | int size) | |
11935 | { | |
11936 | char *note_name = "LINUX"; | |
11937 | return elfcore_write_note (abfd, buf, bufsiz, | |
11938 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11939 | } | |
11940 | ||
e6c3b5bf AH |
11941 | char * |
11942 | elfcore_write_aarch_pauth (bfd *abfd, | |
11943 | char *buf, | |
11944 | int *bufsiz, | |
11945 | const void *aarch_pauth, | |
11946 | int size) | |
11947 | { | |
11948 | char *note_name = "LINUX"; | |
11949 | return elfcore_write_note (abfd, buf, bufsiz, | |
11950 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11951 | } | |
11952 | ||
ffbda24e LM |
11953 | char * |
11954 | elfcore_write_aarch_morello (bfd *abfd, | |
11955 | char *buf, | |
11956 | int *bufsiz, | |
11957 | const void *aarch_morello, | |
11958 | int size) | |
11959 | { | |
11960 | char *note_name = "LINUX"; | |
11961 | return elfcore_write_note (abfd, buf, bufsiz, | |
11962 | note_name, NT_ARM_MORELLO, aarch_morello, size); | |
11963 | } | |
11964 | ||
27456742 AK |
11965 | char * |
11966 | elfcore_write_arc_v2 (bfd *abfd, | |
11967 | char *buf, | |
11968 | int *bufsiz, | |
11969 | const void *arc_v2, | |
11970 | int size) | |
11971 | { | |
11972 | char *note_name = "LINUX"; | |
11973 | return elfcore_write_note (abfd, buf, bufsiz, | |
11974 | note_name, NT_ARC_V2, arc_v2, size); | |
11975 | } | |
11976 | ||
bb864ac1 CES |
11977 | char * |
11978 | elfcore_write_register_note (bfd *abfd, | |
11979 | char *buf, | |
11980 | int *bufsiz, | |
11981 | const char *section, | |
11982 | const void *data, | |
11983 | int size) | |
11984 | { | |
11985 | if (strcmp (section, ".reg2") == 0) | |
11986 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11987 | if (strcmp (section, ".reg-xfp") == 0) | |
11988 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11989 | if (strcmp (section, ".reg-xstate") == 0) |
11990 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11991 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11992 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11993 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11994 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11995 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11996 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11997 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11998 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11999 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
12000 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
12001 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
12002 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
12003 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
12004 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
12005 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
12006 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
12007 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
12008 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
12009 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
12010 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
12011 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
12012 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
12013 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
12014 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
12015 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
12016 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
12017 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
12018 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
12019 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
12020 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
12021 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
12022 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
12023 | if (strcmp (section, ".reg-s390-timer") == 0) |
12024 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
12025 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
12026 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
12027 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
12028 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
12029 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
12030 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
12031 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
12032 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
12033 | if (strcmp (section, ".reg-s390-last-break") == 0) |
12034 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
12035 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
12036 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
12037 | if (strcmp (section, ".reg-s390-tdb") == 0) |
12038 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
12039 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
12040 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
12041 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
12042 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
12043 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
12044 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
12045 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
12046 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
12047 | if (strcmp (section, ".reg-arm-vfp") == 0) |
12048 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
12049 | if (strcmp (section, ".reg-aarch-tls") == 0) |
12050 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
12051 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
12052 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
12053 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
12054 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
12055 | if (strcmp (section, ".reg-aarch-sve") == 0) |
12056 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
12057 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
12058 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
ffbda24e LM |
12059 | if (strcmp (section, ".reg-aarch-morello") == 0) |
12060 | return elfcore_write_aarch_morello (abfd, buf, bufsiz, data, size); | |
27456742 AK |
12061 | if (strcmp (section, ".reg-arc-v2") == 0) |
12062 | return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12063 | return NULL; |
12064 | } | |
12065 | ||
b34976b6 | 12066 | static bfd_boolean |
276da9b3 L |
12067 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
12068 | size_t align) | |
252b5132 | 12069 | { |
c044fabd | 12070 | char *p; |
252b5132 | 12071 | |
276da9b3 L |
12072 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
12073 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
12074 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
12075 | align is less than 4, we use 4 byte alignment. */ | |
12076 | if (align < 4) | |
12077 | align = 4; | |
ef135d43 NC |
12078 | if (align != 4 && align != 8) |
12079 | return FALSE; | |
276da9b3 | 12080 | |
252b5132 RH |
12081 | p = buf; |
12082 | while (p < buf + size) | |
12083 | { | |
c044fabd | 12084 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
12085 | Elf_Internal_Note in; |
12086 | ||
baea7ef1 AM |
12087 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
12088 | return FALSE; | |
12089 | ||
dc810e39 | 12090 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 12091 | |
dc810e39 | 12092 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 12093 | in.namedata = xnp->name; |
baea7ef1 AM |
12094 | if (in.namesz > buf - in.namedata + size) |
12095 | return FALSE; | |
252b5132 | 12096 | |
dc810e39 | 12097 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 12098 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 12099 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
12100 | if (in.descsz != 0 |
12101 | && (in.descdata >= buf + size | |
12102 | || in.descsz > buf - in.descdata + size)) | |
12103 | return FALSE; | |
252b5132 | 12104 | |
718175fa | 12105 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 12106 | { |
718175fa JK |
12107 | default: |
12108 | return TRUE; | |
12109 | ||
12110 | case bfd_core: | |
f64e188b | 12111 | { |
8acbedd6 | 12112 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 12113 | struct |
718175fa | 12114 | { |
f64e188b | 12115 | const char * string; |
8acbedd6 | 12116 | size_t len; |
f64e188b | 12117 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 12118 | } |
f64e188b | 12119 | grokers[] = |
b15fa79e | 12120 | { |
8acbedd6 | 12121 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 12122 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
12123 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
12124 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
12125 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
864619bb KS |
12126 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
12127 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note) | |
f64e188b | 12128 | }; |
8acbedd6 | 12129 | #undef GROKER_ELEMENT |
f64e188b NC |
12130 | int i; |
12131 | ||
12132 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
12133 | { |
12134 | if (in.namesz >= grokers[i].len | |
12135 | && strncmp (in.namedata, grokers[i].string, | |
12136 | grokers[i].len) == 0) | |
12137 | { | |
12138 | if (! grokers[i].func (abfd, & in)) | |
12139 | return FALSE; | |
12140 | break; | |
12141 | } | |
12142 | } | |
f64e188b NC |
12143 | break; |
12144 | } | |
718175fa JK |
12145 | |
12146 | case bfd_object: | |
12147 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
12148 | { | |
12149 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
12150 | return FALSE; | |
12151 | } | |
e21e5835 NC |
12152 | else if (in.namesz == sizeof "stapsdt" |
12153 | && strcmp (in.namedata, "stapsdt") == 0) | |
12154 | { | |
12155 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
12156 | return FALSE; | |
12157 | } | |
718175fa | 12158 | break; |
08a40648 | 12159 | } |
252b5132 | 12160 | |
276da9b3 | 12161 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
12162 | } |
12163 | ||
718175fa JK |
12164 | return TRUE; |
12165 | } | |
12166 | ||
864619bb | 12167 | bfd_boolean |
276da9b3 L |
12168 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
12169 | size_t align) | |
718175fa JK |
12170 | { |
12171 | char *buf; | |
12172 | ||
957e1fc1 | 12173 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
12174 | return TRUE; |
12175 | ||
12176 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
12177 | return FALSE; | |
12178 | ||
2bb3687b | 12179 | buf = (char *) _bfd_malloc_and_read (abfd, size + 1, size); |
718175fa JK |
12180 | if (buf == NULL) |
12181 | return FALSE; | |
12182 | ||
f64e188b NC |
12183 | /* PR 17512: file: ec08f814 |
12184 | 0-termintate the buffer so that string searches will not overflow. */ | |
12185 | buf[size] = 0; | |
12186 | ||
2bb3687b | 12187 | if (!elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
12188 | { |
12189 | free (buf); | |
12190 | return FALSE; | |
12191 | } | |
12192 | ||
252b5132 | 12193 | free (buf); |
b34976b6 | 12194 | return TRUE; |
252b5132 | 12195 | } |
98d8431c JB |
12196 | \f |
12197 | /* Providing external access to the ELF program header table. */ | |
12198 | ||
12199 | /* Return an upper bound on the number of bytes required to store a | |
12200 | copy of ABFD's program header table entries. Return -1 if an error | |
12201 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12202 | |
98d8431c | 12203 | long |
217aa764 | 12204 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
12205 | { |
12206 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12207 | { | |
12208 | bfd_set_error (bfd_error_wrong_format); | |
12209 | return -1; | |
12210 | } | |
12211 | ||
936e320b | 12212 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
12213 | } |
12214 | ||
98d8431c JB |
12215 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
12216 | will be stored as an array of Elf_Internal_Phdr structures, as | |
12217 | defined in include/elf/internal.h. To find out how large the | |
12218 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
12219 | ||
12220 | Return the number of program header table entries read, or -1 if an | |
12221 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12222 | |
98d8431c | 12223 | int |
217aa764 | 12224 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
12225 | { |
12226 | int num_phdrs; | |
12227 | ||
12228 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12229 | { | |
12230 | bfd_set_error (bfd_error_wrong_format); | |
12231 | return -1; | |
12232 | } | |
12233 | ||
12234 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
12235 | if (num_phdrs != 0) |
12236 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
12237 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
12238 | |
12239 | return num_phdrs; | |
12240 | } | |
ae4221d7 | 12241 | |
db6751f2 | 12242 | enum elf_reloc_type_class |
7e612e98 AM |
12243 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
12244 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12245 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
12246 | { |
12247 | return reloc_class_normal; | |
12248 | } | |
f8df10f4 | 12249 | |
47d9a591 | 12250 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
12251 | relocation against a local symbol. */ |
12252 | ||
12253 | bfd_vma | |
217aa764 AM |
12254 | _bfd_elf_rela_local_sym (bfd *abfd, |
12255 | Elf_Internal_Sym *sym, | |
8517fae7 | 12256 | asection **psec, |
217aa764 | 12257 | Elf_Internal_Rela *rel) |
f8df10f4 | 12258 | { |
8517fae7 | 12259 | asection *sec = *psec; |
f8df10f4 JJ |
12260 | bfd_vma relocation; |
12261 | ||
6835821b AM |
12262 | relocation = (sec->output_section->vma |
12263 | + sec->output_offset | |
12264 | + sym->st_value); | |
f8df10f4 | 12265 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 12266 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 12267 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 12268 | { |
f8df10f4 | 12269 | rel->r_addend = |
8517fae7 | 12270 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 12271 | elf_section_data (sec)->sec_info, |
753731ee AM |
12272 | sym->st_value + rel->r_addend); |
12273 | if (sec != *psec) | |
12274 | { | |
12275 | /* If we have changed the section, and our original section is | |
12276 | marked with SEC_EXCLUDE, it means that the original | |
12277 | SEC_MERGE section has been completely subsumed in some | |
12278 | other SEC_MERGE section. In this case, we need to leave | |
12279 | some info around for --emit-relocs. */ | |
12280 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12281 | sec->kept_section = *psec; | |
12282 | sec = *psec; | |
12283 | } | |
8517fae7 AM |
12284 | rel->r_addend -= relocation; |
12285 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12286 | } |
12287 | return relocation; | |
12288 | } | |
c629eae0 JJ |
12289 | |
12290 | bfd_vma | |
217aa764 AM |
12291 | _bfd_elf_rel_local_sym (bfd *abfd, |
12292 | Elf_Internal_Sym *sym, | |
12293 | asection **psec, | |
12294 | bfd_vma addend) | |
47d9a591 | 12295 | { |
c629eae0 JJ |
12296 | asection *sec = *psec; |
12297 | ||
6835821b | 12298 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12299 | return sym->st_value + addend; |
12300 | ||
12301 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12302 | elf_section_data (sec)->sec_info, |
753731ee | 12303 | sym->st_value + addend); |
c629eae0 JJ |
12304 | } |
12305 | ||
37b01f6a DG |
12306 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12307 | the new offset within the section, based upon changes made to the | |
12308 | section. Returns -1 if the offset is now invalid. | |
12309 | The offset (in abnd out) is in target sized bytes, however big a | |
12310 | byte may be. */ | |
12311 | ||
c629eae0 | 12312 | bfd_vma |
217aa764 | 12313 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12314 | struct bfd_link_info *info, |
217aa764 AM |
12315 | asection *sec, |
12316 | bfd_vma offset) | |
c629eae0 | 12317 | { |
68bfbfcc | 12318 | switch (sec->sec_info_type) |
65765700 | 12319 | { |
dbaa2011 | 12320 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12321 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12322 | offset); | |
dbaa2011 | 12323 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12324 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12325 | |
65765700 | 12326 | default: |
310fd250 L |
12327 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12328 | { | |
37b01f6a | 12329 | /* Reverse the offset. */ |
310fd250 L |
12330 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12331 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12332 | |
12333 | /* address_size and sec->size are in octets. Convert | |
12334 | to bytes before subtracting the original offset. */ | |
61826503 | 12335 | offset = ((sec->size - address_size) |
bb294208 | 12336 | / bfd_octets_per_byte (abfd, sec) - offset); |
310fd250 | 12337 | } |
65765700 JJ |
12338 | return offset; |
12339 | } | |
c629eae0 | 12340 | } |
3333a7c3 RM |
12341 | \f |
12342 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12343 | reconstruct an ELF file by reading the segments out of remote memory | |
12344 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12345 | points to. If not null, *LOADBASEP is filled in with the difference | |
12346 | between the VMAs from which the segments were read, and the VMAs the | |
12347 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12348 | ||
12349 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12350 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12351 | should return zero on success or an `errno' code on failure. TEMPL must | |
12352 | be a BFD for an ELF target with the word size and byte order found in | |
12353 | the remote memory. */ | |
12354 | ||
12355 | bfd * | |
217aa764 AM |
12356 | bfd_elf_bfd_from_remote_memory |
12357 | (bfd *templ, | |
12358 | bfd_vma ehdr_vma, | |
f0a5d95a | 12359 | bfd_size_type size, |
217aa764 | 12360 | bfd_vma *loadbasep, |
fe78531d | 12361 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12362 | { |
12363 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12364 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12365 | } |
4c45e5c9 JJ |
12366 | \f |
12367 | long | |
c9727e01 AM |
12368 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12369 | long symcount ATTRIBUTE_UNUSED, | |
12370 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12371 | long dynsymcount, |
c9727e01 AM |
12372 | asymbol **dynsyms, |
12373 | asymbol **ret) | |
4c45e5c9 JJ |
12374 | { |
12375 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12376 | asection *relplt; | |
12377 | asymbol *s; | |
12378 | const char *relplt_name; | |
12379 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
12380 | arelent *p; | |
12381 | long count, i, n; | |
12382 | size_t size; | |
12383 | Elf_Internal_Shdr *hdr; | |
12384 | char *names; | |
12385 | asection *plt; | |
12386 | ||
8615f3f2 AM |
12387 | *ret = NULL; |
12388 | ||
90e3cdf2 JJ |
12389 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12390 | return 0; | |
12391 | ||
8615f3f2 AM |
12392 | if (dynsymcount <= 0) |
12393 | return 0; | |
12394 | ||
4c45e5c9 JJ |
12395 | if (!bed->plt_sym_val) |
12396 | return 0; | |
12397 | ||
12398 | relplt_name = bed->relplt_name; | |
12399 | if (relplt_name == NULL) | |
d35fd659 | 12400 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12401 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12402 | if (relplt == NULL) | |
12403 | return 0; | |
12404 | ||
12405 | hdr = &elf_section_data (relplt)->this_hdr; | |
12406 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12407 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12408 | return 0; | |
12409 | ||
12410 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12411 | if (plt == NULL) | |
12412 | return 0; | |
12413 | ||
12414 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 12415 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
12416 | return -1; |
12417 | ||
eea6121a | 12418 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12419 | size = count * sizeof (asymbol); |
12420 | p = relplt->relocation; | |
cb53bf42 | 12421 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12422 | { |
12423 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12424 | if (p->addend != 0) | |
12425 | { | |
12426 | #ifdef BFD64 | |
12427 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12428 | #else | |
12429 | size += sizeof ("+0x") - 1 + 8; | |
12430 | #endif | |
12431 | } | |
12432 | } | |
4c45e5c9 | 12433 | |
a50b1753 | 12434 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12435 | if (s == NULL) |
12436 | return -1; | |
12437 | ||
12438 | names = (char *) (s + count); | |
12439 | p = relplt->relocation; | |
12440 | n = 0; | |
cb53bf42 | 12441 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12442 | { |
12443 | size_t len; | |
12444 | bfd_vma addr; | |
12445 | ||
12446 | addr = bed->plt_sym_val (i, plt, p); | |
12447 | if (addr == (bfd_vma) -1) | |
12448 | continue; | |
12449 | ||
12450 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12451 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12452 | we are defining a symbol, ensure one of them is set. */ | |
12453 | if ((s->flags & BSF_LOCAL) == 0) | |
12454 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12455 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12456 | s->section = plt; |
12457 | s->value = addr - plt->vma; | |
12458 | s->name = names; | |
8f39ba8e | 12459 | s->udata.p = NULL; |
4c45e5c9 JJ |
12460 | len = strlen ((*p->sym_ptr_ptr)->name); |
12461 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12462 | names += len; | |
041de40d AM |
12463 | if (p->addend != 0) |
12464 | { | |
1d770845 | 12465 | char buf[30], *a; |
d324f6d6 | 12466 | |
041de40d AM |
12467 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12468 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12469 | bfd_sprintf_vma (abfd, buf, p->addend); |
12470 | for (a = buf; *a == '0'; ++a) | |
12471 | ; | |
12472 | len = strlen (a); | |
12473 | memcpy (names, a, len); | |
12474 | names += len; | |
041de40d | 12475 | } |
4c45e5c9 JJ |
12476 | memcpy (names, "@plt", sizeof ("@plt")); |
12477 | names += sizeof ("@plt"); | |
8f39ba8e | 12478 | ++s, ++n; |
4c45e5c9 JJ |
12479 | } |
12480 | ||
12481 | return n; | |
12482 | } | |
3d7f7666 | 12483 | |
821e6ff6 AM |
12484 | /* It is only used by x86-64 so far. |
12485 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12486 | but current usage would allow all of _bfd_std_section to be zero. */ |
12487 | static const asymbol lcomm_sym | |
12488 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12489 | asection _bfd_elf_large_com_section |
7eacd66b | 12490 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12491 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12492 | |
cc364be6 AM |
12493 | bfd_boolean |
12494 | _bfd_elf_final_write_processing (bfd *abfd) | |
06f44071 AM |
12495 | { |
12496 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12497 | |
12498 | i_ehdrp = elf_elfheader (abfd); | |
12499 | ||
06f44071 AM |
12500 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12501 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12502 | |
df3a023b AM |
12503 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
12504 | SHF_GNU_MBIND sections or symbols of STT_GNU_IFUNC type or | |
12505 | STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12506 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12507 | { | |
12508 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12509 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12510 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12511 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12512 | { | |
12513 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
12514 | _bfd_error_handler (_("GNU_MBIND section is unsupported")); | |
12515 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) | |
12516 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is unsupported")); | |
12517 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) | |
12518 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is unsupported")); | |
9aea1e31 | 12519 | bfd_set_error (bfd_error_sorry); |
cc364be6 AM |
12520 | return FALSE; |
12521 | } | |
12522 | } | |
12523 | return TRUE; | |
d1036acb | 12524 | } |
fcb93ecf PB |
12525 | |
12526 | ||
12527 | /* Return TRUE for ELF symbol types that represent functions. | |
12528 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12529 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12530 | |
12531 | bfd_boolean | |
12532 | _bfd_elf_is_function_type (unsigned int type) | |
12533 | { | |
d8045f23 NC |
12534 | return (type == STT_FUNC |
12535 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12536 | } |
9f296da3 | 12537 | |
aef36ac1 AM |
12538 | /* If the ELF symbol SYM might be a function in SEC, return the |
12539 | function size and set *CODE_OFF to the function's entry point, | |
12540 | otherwise return zero. */ | |
9f296da3 | 12541 | |
aef36ac1 AM |
12542 | bfd_size_type |
12543 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12544 | bfd_vma *code_off) | |
9f296da3 | 12545 | { |
aef36ac1 AM |
12546 | bfd_size_type size; |
12547 | ||
ff9e0f5b | 12548 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12549 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12550 | || sym->section != sec) | |
12551 | return 0; | |
ff9e0f5b | 12552 | |
ff9e0f5b | 12553 | *code_off = sym->value; |
aef36ac1 AM |
12554 | size = 0; |
12555 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12556 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12557 | if (size == 0) | |
12558 | size = 1; | |
12559 | return size; | |
9f296da3 | 12560 | } |
a8e14f4c NC |
12561 | |
12562 | /* Set to non-zero to enable some debug messages. */ | |
12563 | #define DEBUG_SECONDARY_RELOCS 0 | |
12564 | ||
12565 | /* An internal-to-the-bfd-library only section type | |
12566 | used to indicate a cached secondary reloc section. */ | |
12567 | #define SHT_SECONDARY_RELOC (SHT_LOOS + SHT_RELA) | |
12568 | ||
12569 | /* Create a BFD section to hold a secondary reloc section. */ | |
12570 | ||
12571 | bfd_boolean | |
12572 | _bfd_elf_init_secondary_reloc_section (bfd * abfd, | |
12573 | Elf_Internal_Shdr *hdr, | |
12574 | const char * name, | |
12575 | unsigned int shindex) | |
12576 | { | |
12577 | /* We only support RELA secondary relocs. */ | |
12578 | if (hdr->sh_type != SHT_RELA) | |
12579 | return FALSE; | |
12580 | ||
12581 | #if DEBUG_SECONDARY_RELOCS | |
12582 | fprintf (stderr, "secondary reloc section %s encountered\n", name); | |
12583 | #endif | |
12584 | hdr->sh_type = SHT_SECONDARY_RELOC; | |
12585 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
12586 | } | |
12587 | ||
12588 | /* Read in any secondary relocs associated with SEC. */ | |
12589 | ||
12590 | bfd_boolean | |
12591 | _bfd_elf_slurp_secondary_reloc_section (bfd * abfd, | |
12592 | asection * sec, | |
12593 | asymbol ** symbols) | |
12594 | { | |
12595 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
12596 | asection * relsec; | |
12597 | bfd_boolean result = TRUE; | |
12598 | bfd_vma (*r_sym) (bfd_vma); | |
12599 | ||
12600 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
12601 | if (bfd_arch_bits_per_address (abfd) != 32) | |
12602 | r_sym = elf64_r_sym; | |
12603 | else | |
12604 | #endif | |
12605 | r_sym = elf32_r_sym; | |
12606 | ||
12607 | /* Discover if there are any secondary reloc sections | |
12608 | associated with SEC. */ | |
12609 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
12610 | { | |
12611 | Elf_Internal_Shdr * hdr = & elf_section_data (relsec)->this_hdr; | |
12612 | ||
12613 | if (hdr->sh_type == SHT_SECONDARY_RELOC | |
8642dafa AM |
12614 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx |
12615 | && (hdr->sh_entsize == ebd->s->sizeof_rel | |
12616 | || hdr->sh_entsize == ebd->s->sizeof_rela)) | |
a8e14f4c NC |
12617 | { |
12618 | bfd_byte * native_relocs; | |
12619 | bfd_byte * native_reloc; | |
12620 | arelent * internal_relocs; | |
12621 | arelent * internal_reloc; | |
12622 | unsigned int i; | |
12623 | unsigned int entsize; | |
12624 | unsigned int symcount; | |
12625 | unsigned int reloc_count; | |
12626 | size_t amt; | |
12627 | ||
12628 | if (ebd->elf_info_to_howto == NULL) | |
12629 | return FALSE; | |
12630 | ||
12631 | #if DEBUG_SECONDARY_RELOCS | |
12632 | fprintf (stderr, "read secondary relocs for %s from %s\n", | |
12633 | sec->name, relsec->name); | |
12634 | #endif | |
12635 | entsize = hdr->sh_entsize; | |
12636 | ||
12637 | native_relocs = bfd_malloc (hdr->sh_size); | |
12638 | if (native_relocs == NULL) | |
12639 | { | |
12640 | result = FALSE; | |
12641 | continue; | |
12642 | } | |
12643 | ||
12644 | reloc_count = NUM_SHDR_ENTRIES (hdr); | |
12645 | if (_bfd_mul_overflow (reloc_count, sizeof (arelent), & amt)) | |
12646 | { | |
ecbbbdba | 12647 | free (native_relocs); |
a8e14f4c NC |
12648 | bfd_set_error (bfd_error_file_too_big); |
12649 | result = FALSE; | |
12650 | continue; | |
12651 | } | |
12652 | ||
12653 | internal_relocs = (arelent *) bfd_alloc (abfd, amt); | |
12654 | if (internal_relocs == NULL) | |
12655 | { | |
12656 | free (native_relocs); | |
12657 | result = FALSE; | |
12658 | continue; | |
12659 | } | |
12660 | ||
12661 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
12662 | || (bfd_bread (native_relocs, hdr->sh_size, abfd) | |
12663 | != hdr->sh_size)) | |
12664 | { | |
12665 | free (native_relocs); | |
ecbbbdba NC |
12666 | /* The internal_relocs will be freed when |
12667 | the memory for the bfd is released. */ | |
a8e14f4c NC |
12668 | result = FALSE; |
12669 | continue; | |
12670 | } | |
12671 | ||
12672 | symcount = bfd_get_symcount (abfd); | |
12673 | ||
12674 | for (i = 0, internal_reloc = internal_relocs, | |
12675 | native_reloc = native_relocs; | |
12676 | i < reloc_count; | |
12677 | i++, internal_reloc++, native_reloc += entsize) | |
12678 | { | |
12679 | bfd_boolean res; | |
12680 | Elf_Internal_Rela rela; | |
12681 | ||
12682 | ebd->s->swap_reloca_in (abfd, native_reloc, & rela); | |
12683 | ||
12684 | /* The address of an ELF reloc is section relative for an object | |
12685 | file, and absolute for an executable file or shared library. | |
12686 | The address of a normal BFD reloc is always section relative, | |
12687 | and the address of a dynamic reloc is absolute.. */ | |
12688 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
12689 | internal_reloc->address = rela.r_offset; | |
12690 | else | |
12691 | internal_reloc->address = rela.r_offset - sec->vma; | |
12692 | ||
12693 | if (r_sym (rela.r_info) == STN_UNDEF) | |
12694 | { | |
12695 | /* FIXME: This and the error case below mean that we | |
12696 | have a symbol on relocs that is not elf_symbol_type. */ | |
12697 | internal_reloc->sym_ptr_ptr = | |
12698 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
12699 | } | |
12700 | else if (r_sym (rela.r_info) > symcount) | |
12701 | { | |
12702 | _bfd_error_handler | |
12703 | /* xgettext:c-format */ | |
12704 | (_("%pB(%pA): relocation %d has invalid symbol index %ld"), | |
12705 | abfd, sec, i, (long) r_sym (rela.r_info)); | |
12706 | bfd_set_error (bfd_error_bad_value); | |
12707 | internal_reloc->sym_ptr_ptr = | |
12708 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
12709 | result = FALSE; | |
12710 | } | |
12711 | else | |
12712 | { | |
12713 | asymbol **ps; | |
12714 | ||
12715 | ps = symbols + r_sym (rela.r_info) - 1; | |
12716 | ||
12717 | internal_reloc->sym_ptr_ptr = ps; | |
12718 | /* Make sure that this symbol is not removed by strip. */ | |
12719 | (*ps)->flags |= BSF_KEEP; | |
12720 | } | |
12721 | ||
12722 | internal_reloc->addend = rela.r_addend; | |
12723 | ||
12724 | res = ebd->elf_info_to_howto (abfd, internal_reloc, & rela); | |
12725 | if (! res || internal_reloc->howto == NULL) | |
12726 | { | |
12727 | #if DEBUG_SECONDARY_RELOCS | |
12728 | fprintf (stderr, "there is no howto associated with reloc %lx\n", | |
12729 | rela.r_info); | |
12730 | #endif | |
12731 | result = FALSE; | |
12732 | } | |
12733 | } | |
12734 | ||
12735 | free (native_relocs); | |
12736 | /* Store the internal relocs. */ | |
12737 | elf_section_data (relsec)->sec_info = internal_relocs; | |
12738 | } | |
12739 | } | |
12740 | ||
12741 | return result; | |
12742 | } | |
12743 | ||
12744 | /* Set the ELF section header fields of an output secondary reloc section. */ | |
12745 | ||
12746 | bfd_boolean | |
12747 | _bfd_elf_copy_special_section_fields (const bfd * ibfd ATTRIBUTE_UNUSED, | |
12748 | bfd * obfd ATTRIBUTE_UNUSED, | |
12749 | const Elf_Internal_Shdr * isection, | |
12750 | Elf_Internal_Shdr * osection) | |
12751 | { | |
12752 | asection * isec; | |
12753 | asection * osec; | |
44466e45 | 12754 | struct bfd_elf_section_data * esd; |
a8e14f4c NC |
12755 | |
12756 | if (isection == NULL) | |
12757 | return FALSE; | |
12758 | ||
12759 | if (isection->sh_type != SHT_SECONDARY_RELOC) | |
12760 | return TRUE; | |
12761 | ||
12762 | isec = isection->bfd_section; | |
12763 | if (isec == NULL) | |
12764 | return FALSE; | |
12765 | ||
12766 | osec = osection->bfd_section; | |
12767 | if (osec == NULL) | |
12768 | return FALSE; | |
12769 | ||
44466e45 NC |
12770 | esd = elf_section_data (osec); |
12771 | BFD_ASSERT (esd->sec_info == NULL); | |
12772 | esd->sec_info = elf_section_data (isec)->sec_info; | |
a8e14f4c NC |
12773 | osection->sh_type = SHT_RELA; |
12774 | osection->sh_link = elf_onesymtab (obfd); | |
12775 | if (osection->sh_link == 0) | |
12776 | { | |
12777 | /* There is no symbol table - we are hosed... */ | |
12778 | _bfd_error_handler | |
12779 | /* xgettext:c-format */ | |
12780 | (_("%pB(%pA): link section cannot be set because the output file does not have a symbol table"), | |
12781 | obfd, osec); | |
12782 | bfd_set_error (bfd_error_bad_value); | |
12783 | return FALSE; | |
12784 | } | |
12785 | ||
12786 | /* Find the output section that corresponds to the isection's sh_info link. */ | |
327ef784 NC |
12787 | if (isection->sh_info == 0 |
12788 | || isection->sh_info >= elf_numsections (ibfd)) | |
12789 | { | |
12790 | _bfd_error_handler | |
12791 | /* xgettext:c-format */ | |
12792 | (_("%pB(%pA): info section index is invalid"), | |
12793 | obfd, osec); | |
12794 | bfd_set_error (bfd_error_bad_value); | |
12795 | return FALSE; | |
12796 | } | |
12797 | ||
a8e14f4c NC |
12798 | isection = elf_elfsections (ibfd)[isection->sh_info]; |
12799 | ||
327ef784 NC |
12800 | if (isection == NULL |
12801 | || isection->bfd_section == NULL | |
12802 | || isection->bfd_section->output_section == NULL) | |
12803 | { | |
12804 | _bfd_error_handler | |
12805 | /* xgettext:c-format */ | |
12806 | (_("%pB(%pA): info section index cannot be set because the section is not in the output"), | |
12807 | obfd, osec); | |
12808 | bfd_set_error (bfd_error_bad_value); | |
12809 | return FALSE; | |
12810 | } | |
12811 | ||
44466e45 NC |
12812 | esd = elf_section_data (isection->bfd_section->output_section); |
12813 | BFD_ASSERT (esd != NULL); | |
12814 | osection->sh_info = esd->this_idx; | |
12815 | esd->has_secondary_relocs = TRUE; | |
a8e14f4c NC |
12816 | #if DEBUG_SECONDARY_RELOCS |
12817 | fprintf (stderr, "update header of %s, sh_link = %u, sh_info = %u\n", | |
12818 | osec->name, osection->sh_link, osection->sh_info); | |
44466e45 NC |
12819 | fprintf (stderr, "mark section %s as having secondary relocs\n", |
12820 | bfd_section_name (isection->bfd_section->output_section)); | |
a8e14f4c NC |
12821 | #endif |
12822 | ||
12823 | return TRUE; | |
12824 | } | |
12825 | ||
44466e45 NC |
12826 | /* Write out a secondary reloc section. |
12827 | ||
12828 | FIXME: Currently this function can result in a serious performance penalty | |
12829 | for files with secondary relocs and lots of sections. The proper way to | |
12830 | fix this is for _bfd_elf_copy_special_section_fields() to chain secondary | |
12831 | relocs together and then to have this function just walk that chain. */ | |
a8e14f4c NC |
12832 | |
12833 | bfd_boolean | |
12834 | _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec) | |
12835 | { | |
12836 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
12837 | bfd_vma addr_offset; | |
12838 | asection * relsec; | |
12839 | bfd_vma (*r_info) (bfd_vma, bfd_vma); | |
ac4bf06c NC |
12840 | bfd_boolean result = TRUE; |
12841 | ||
12842 | if (sec == NULL) | |
12843 | return FALSE; | |
a8e14f4c NC |
12844 | |
12845 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
12846 | if (bfd_arch_bits_per_address (abfd) != 32) | |
12847 | r_info = elf64_r_info; | |
12848 | else | |
12849 | #endif | |
12850 | r_info = elf32_r_info; | |
12851 | ||
a8e14f4c NC |
12852 | /* The address of an ELF reloc is section relative for an object |
12853 | file, and absolute for an executable file or shared library. | |
12854 | The address of a BFD reloc is always section relative. */ | |
12855 | addr_offset = 0; | |
12856 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
12857 | addr_offset = sec->vma; | |
12858 | ||
12859 | /* Discover if there are any secondary reloc sections | |
12860 | associated with SEC. */ | |
12861 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
12862 | { | |
12863 | const struct bfd_elf_section_data * const esd = elf_section_data (relsec); | |
12864 | Elf_Internal_Shdr * const hdr = (Elf_Internal_Shdr *) & esd->this_hdr; | |
12865 | ||
12866 | if (hdr->sh_type == SHT_RELA | |
12867 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx) | |
12868 | { | |
12869 | asymbol * last_sym; | |
12870 | int last_sym_idx; | |
12871 | unsigned int reloc_count; | |
12872 | unsigned int idx; | |
12873 | arelent * src_irel; | |
12874 | bfd_byte * dst_rela; | |
12875 | ||
ac4bf06c NC |
12876 | if (hdr->contents != NULL) |
12877 | { | |
12878 | _bfd_error_handler | |
12879 | /* xgettext:c-format */ | |
12880 | (_("%pB(%pA): error: secondary reloc section processed twice"), | |
12881 | abfd, relsec); | |
12882 | bfd_set_error (bfd_error_bad_value); | |
12883 | result = FALSE; | |
12884 | continue; | |
12885 | } | |
a8e14f4c | 12886 | |
ac267c75 NC |
12887 | if (hdr->sh_entsize == 0) |
12888 | { | |
12889 | _bfd_error_handler | |
12890 | /* xgettext:c-format */ | |
12891 | (_("%pB(%pA): error: secondary reloc section has zero sized entries"), | |
12892 | abfd, relsec); | |
12893 | bfd_set_error (bfd_error_bad_value); | |
12894 | result = FALSE; | |
12895 | continue; | |
12896 | } | |
12897 | ||
a8e14f4c | 12898 | reloc_count = hdr->sh_size / hdr->sh_entsize; |
ac4bf06c NC |
12899 | if (reloc_count <= 0) |
12900 | { | |
12901 | _bfd_error_handler | |
12902 | /* xgettext:c-format */ | |
12903 | (_("%pB(%pA): error: secondary reloc section is empty!"), | |
12904 | abfd, relsec); | |
12905 | bfd_set_error (bfd_error_bad_value); | |
12906 | result = FALSE; | |
12907 | continue; | |
12908 | } | |
a8e14f4c NC |
12909 | |
12910 | hdr->contents = bfd_alloc (abfd, hdr->sh_size); | |
12911 | if (hdr->contents == NULL) | |
12912 | continue; | |
12913 | ||
12914 | #if DEBUG_SECONDARY_RELOCS | |
12915 | fprintf (stderr, "write %u secondary relocs for %s from %s\n", | |
12916 | reloc_count, sec->name, relsec->name); | |
12917 | #endif | |
12918 | last_sym = NULL; | |
12919 | last_sym_idx = 0; | |
12920 | dst_rela = hdr->contents; | |
12921 | src_irel = (arelent *) esd->sec_info; | |
ac4bf06c NC |
12922 | if (src_irel == NULL) |
12923 | { | |
12924 | _bfd_error_handler | |
12925 | /* xgettext:c-format */ | |
12926 | (_("%pB(%pA): error: internal relocs missing for secondary reloc section"), | |
12927 | abfd, relsec); | |
12928 | bfd_set_error (bfd_error_bad_value); | |
12929 | result = FALSE; | |
12930 | continue; | |
12931 | } | |
a8e14f4c NC |
12932 | |
12933 | for (idx = 0; idx < reloc_count; idx++, dst_rela += hdr->sh_entsize) | |
12934 | { | |
12935 | Elf_Internal_Rela src_rela; | |
12936 | arelent *ptr; | |
12937 | asymbol *sym; | |
12938 | int n; | |
12939 | ||
12940 | ptr = src_irel + idx; | |
ac4bf06c NC |
12941 | if (ptr == NULL) |
12942 | { | |
12943 | _bfd_error_handler | |
12944 | /* xgettext:c-format */ | |
12945 | (_("%pB(%pA): error: reloc table entry %u is empty"), | |
12946 | abfd, relsec, idx); | |
12947 | bfd_set_error (bfd_error_bad_value); | |
12948 | result = FALSE; | |
12949 | break; | |
12950 | } | |
a8e14f4c | 12951 | |
ac4bf06c NC |
12952 | if (ptr->sym_ptr_ptr == NULL) |
12953 | { | |
12954 | /* FIXME: Is this an error ? */ | |
12955 | n = 0; | |
12956 | } | |
a8e14f4c NC |
12957 | else |
12958 | { | |
ac4bf06c NC |
12959 | sym = *ptr->sym_ptr_ptr; |
12960 | ||
12961 | if (sym == last_sym) | |
12962 | n = last_sym_idx; | |
12963 | else | |
a8e14f4c | 12964 | { |
ac4bf06c NC |
12965 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, & sym); |
12966 | if (n < 0) | |
12967 | { | |
12968 | _bfd_error_handler | |
12969 | /* xgettext:c-format */ | |
12970 | (_("%pB(%pA): error: secondary reloc %u references a missing symbol"), | |
12971 | abfd, relsec, idx); | |
12972 | bfd_set_error (bfd_error_bad_value); | |
12973 | result = FALSE; | |
12974 | n = 0; | |
12975 | } | |
12976 | ||
12977 | last_sym = sym; | |
12978 | last_sym_idx = n; | |
a8e14f4c | 12979 | } |
a8e14f4c | 12980 | |
ac4bf06c NC |
12981 | if (sym->the_bfd != NULL |
12982 | && sym->the_bfd->xvec != abfd->xvec | |
12983 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
12984 | { | |
12985 | _bfd_error_handler | |
12986 | /* xgettext:c-format */ | |
12987 | (_("%pB(%pA): error: secondary reloc %u references a deleted symbol"), | |
12988 | abfd, relsec, idx); | |
12989 | bfd_set_error (bfd_error_bad_value); | |
12990 | result = FALSE; | |
12991 | n = 0; | |
12992 | } | |
a8e14f4c NC |
12993 | } |
12994 | ||
ac4bf06c | 12995 | src_rela.r_offset = ptr->address + addr_offset; |
a8e14f4c NC |
12996 | if (ptr->howto == NULL) |
12997 | { | |
ac4bf06c NC |
12998 | _bfd_error_handler |
12999 | /* xgettext:c-format */ | |
13000 | (_("%pB(%pA): error: secondary reloc %u is of an unknown type"), | |
13001 | abfd, relsec, idx); | |
13002 | bfd_set_error (bfd_error_bad_value); | |
13003 | result = FALSE; | |
13004 | src_rela.r_info = r_info (0, 0); | |
a8e14f4c | 13005 | } |
ac4bf06c NC |
13006 | else |
13007 | src_rela.r_info = r_info (n, ptr->howto->type); | |
a8e14f4c NC |
13008 | src_rela.r_addend = ptr->addend; |
13009 | ebd->s->swap_reloca_out (abfd, &src_rela, dst_rela); | |
13010 | } | |
13011 | } | |
13012 | } | |
13013 | ||
ac4bf06c | 13014 | return result; |
a8e14f4c | 13015 | } |