Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
b3adc24a | 3 | Copyright (C) 1993-2020 Free Software Foundation, Inc. |
252b5132 | 4 | |
5e8d7549 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
5e8d7549 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 10 | (at your option) any later version. |
252b5132 | 11 | |
5e8d7549 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
5e8d7549 | 17 | You should have received a copy of the GNU General Public License |
b34976b6 | 18 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 | 22 | |
1b74d094 BW |
23 | /* |
24 | SECTION | |
252b5132 RH |
25 | ELF backends |
26 | ||
27 | BFD support for ELF formats is being worked on. | |
28 | Currently, the best supported back ends are for sparc and i386 | |
29 | (running svr4 or Solaris 2). | |
30 | ||
31 | Documentation of the internals of the support code still needs | |
32 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 33 | haven't bothered yet. */ |
252b5132 | 34 | |
7ee38065 MS |
35 | /* For sparc64-cross-sparc32. */ |
36 | #define _SYSCALL32 | |
252b5132 | 37 | #include "sysdep.h" |
3a551c7a | 38 | #include <limits.h> |
3db64b00 | 39 | #include "bfd.h" |
252b5132 RH |
40 | #include "bfdlink.h" |
41 | #include "libbfd.h" | |
42 | #define ARCH_SIZE 0 | |
43 | #include "elf-bfd.h" | |
e0e8c97f | 44 | #include "libiberty.h" |
ff59fc36 | 45 | #include "safe-ctype.h" |
de64ce13 | 46 | #include "elf-linux-core.h" |
252b5132 | 47 | |
8bc7f138 L |
48 | #ifdef CORE_HEADER |
49 | #include CORE_HEADER | |
50 | #endif | |
51 | ||
217aa764 | 52 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 53 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
ef10c3ac | 54 | static bfd_boolean swap_out_syms (bfd *, struct elf_strtab_hash **, int) ; |
718175fa | 55 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, |
276da9b3 | 56 | file_ptr offset, size_t align); |
50b2bdb7 | 57 | |
252b5132 RH |
58 | /* Swap version information in and out. The version information is |
59 | currently size independent. If that ever changes, this code will | |
60 | need to move into elfcode.h. */ | |
61 | ||
62 | /* Swap in a Verdef structure. */ | |
63 | ||
64 | void | |
217aa764 AM |
65 | _bfd_elf_swap_verdef_in (bfd *abfd, |
66 | const Elf_External_Verdef *src, | |
67 | Elf_Internal_Verdef *dst) | |
252b5132 | 68 | { |
dc810e39 AM |
69 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
70 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
71 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
72 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
73 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
74 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
75 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
76 | } |
77 | ||
78 | /* Swap out a Verdef structure. */ | |
79 | ||
80 | void | |
217aa764 AM |
81 | _bfd_elf_swap_verdef_out (bfd *abfd, |
82 | const Elf_Internal_Verdef *src, | |
83 | Elf_External_Verdef *dst) | |
252b5132 | 84 | { |
dc810e39 AM |
85 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
86 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
87 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
88 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
89 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
90 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
91 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
92 | } |
93 | ||
94 | /* Swap in a Verdaux structure. */ | |
95 | ||
96 | void | |
217aa764 AM |
97 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
98 | const Elf_External_Verdaux *src, | |
99 | Elf_Internal_Verdaux *dst) | |
252b5132 | 100 | { |
dc810e39 AM |
101 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
102 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
103 | } |
104 | ||
105 | /* Swap out a Verdaux structure. */ | |
106 | ||
107 | void | |
217aa764 AM |
108 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
109 | const Elf_Internal_Verdaux *src, | |
110 | Elf_External_Verdaux *dst) | |
252b5132 | 111 | { |
dc810e39 AM |
112 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
113 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
114 | } |
115 | ||
116 | /* Swap in a Verneed structure. */ | |
117 | ||
118 | void | |
217aa764 AM |
119 | _bfd_elf_swap_verneed_in (bfd *abfd, |
120 | const Elf_External_Verneed *src, | |
121 | Elf_Internal_Verneed *dst) | |
252b5132 | 122 | { |
dc810e39 AM |
123 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
124 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
125 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
126 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
127 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
128 | } |
129 | ||
130 | /* Swap out a Verneed structure. */ | |
131 | ||
132 | void | |
217aa764 AM |
133 | _bfd_elf_swap_verneed_out (bfd *abfd, |
134 | const Elf_Internal_Verneed *src, | |
135 | Elf_External_Verneed *dst) | |
252b5132 | 136 | { |
dc810e39 AM |
137 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
138 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
139 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
140 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
141 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
142 | } |
143 | ||
144 | /* Swap in a Vernaux structure. */ | |
145 | ||
146 | void | |
217aa764 AM |
147 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
148 | const Elf_External_Vernaux *src, | |
149 | Elf_Internal_Vernaux *dst) | |
252b5132 | 150 | { |
dc810e39 AM |
151 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
152 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
153 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
154 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
155 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
156 | } |
157 | ||
158 | /* Swap out a Vernaux structure. */ | |
159 | ||
160 | void | |
217aa764 AM |
161 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
162 | const Elf_Internal_Vernaux *src, | |
163 | Elf_External_Vernaux *dst) | |
252b5132 | 164 | { |
dc810e39 AM |
165 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
166 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
167 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
168 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
169 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
170 | } |
171 | ||
172 | /* Swap in a Versym structure. */ | |
173 | ||
174 | void | |
217aa764 AM |
175 | _bfd_elf_swap_versym_in (bfd *abfd, |
176 | const Elf_External_Versym *src, | |
177 | Elf_Internal_Versym *dst) | |
252b5132 | 178 | { |
dc810e39 | 179 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
180 | } |
181 | ||
182 | /* Swap out a Versym structure. */ | |
183 | ||
184 | void | |
217aa764 AM |
185 | _bfd_elf_swap_versym_out (bfd *abfd, |
186 | const Elf_Internal_Versym *src, | |
187 | Elf_External_Versym *dst) | |
252b5132 | 188 | { |
dc810e39 | 189 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
190 | } |
191 | ||
192 | /* Standard ELF hash function. Do not change this function; you will | |
193 | cause invalid hash tables to be generated. */ | |
3a99b017 | 194 | |
252b5132 | 195 | unsigned long |
217aa764 | 196 | bfd_elf_hash (const char *namearg) |
252b5132 | 197 | { |
3a99b017 | 198 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
199 | unsigned long h = 0; |
200 | unsigned long g; | |
201 | int ch; | |
202 | ||
203 | while ((ch = *name++) != '\0') | |
204 | { | |
205 | h = (h << 4) + ch; | |
206 | if ((g = (h & 0xf0000000)) != 0) | |
207 | { | |
208 | h ^= g >> 24; | |
209 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
210 | this case and on some machines one insn instead of two. */ | |
211 | h ^= g; | |
212 | } | |
213 | } | |
32dfa85d | 214 | return h & 0xffffffff; |
252b5132 RH |
215 | } |
216 | ||
fdc90cb4 JJ |
217 | /* DT_GNU_HASH hash function. Do not change this function; you will |
218 | cause invalid hash tables to be generated. */ | |
219 | ||
220 | unsigned long | |
221 | bfd_elf_gnu_hash (const char *namearg) | |
222 | { | |
223 | const unsigned char *name = (const unsigned char *) namearg; | |
224 | unsigned long h = 5381; | |
225 | unsigned char ch; | |
226 | ||
227 | while ((ch = *name++) != '\0') | |
228 | h = (h << 5) + h + ch; | |
229 | return h & 0xffffffff; | |
230 | } | |
231 | ||
0c8d6e5c AM |
232 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
233 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
b34976b6 | 234 | bfd_boolean |
0c8d6e5c | 235 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 236 | size_t object_size, |
4dfe6ac6 | 237 | enum elf_target_id object_id) |
252b5132 | 238 | { |
0ffa91dd NC |
239 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
240 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
241 | if (abfd->tdata.any == NULL) | |
242 | return FALSE; | |
252b5132 | 243 | |
0ffa91dd | 244 | elf_object_id (abfd) = object_id; |
c0355132 AM |
245 | if (abfd->direction != read_direction) |
246 | { | |
247 | struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o); | |
248 | if (o == NULL) | |
249 | return FALSE; | |
250 | elf_tdata (abfd)->o = o; | |
251 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
252 | } | |
b34976b6 | 253 | return TRUE; |
252b5132 RH |
254 | } |
255 | ||
0ffa91dd NC |
256 | |
257 | bfd_boolean | |
ae95ffa6 | 258 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 259 | { |
ae95ffa6 | 260 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 261 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 262 | bed->target_id); |
0ffa91dd NC |
263 | } |
264 | ||
b34976b6 | 265 | bfd_boolean |
217aa764 | 266 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 267 | { |
c044fabd | 268 | /* I think this can be done just like an object file. */ |
228e534f AM |
269 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
270 | return FALSE; | |
271 | elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core)); | |
272 | return elf_tdata (abfd)->core != NULL; | |
252b5132 RH |
273 | } |
274 | ||
6d5944fc | 275 | char * |
217aa764 | 276 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
277 | { |
278 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 279 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
280 | file_ptr offset; |
281 | bfd_size_type shstrtabsize; | |
252b5132 RH |
282 | |
283 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
284 | if (i_shdrp == 0 |
285 | || shindex >= elf_numsections (abfd) | |
286 | || i_shdrp[shindex] == 0) | |
f075ee0c | 287 | return NULL; |
252b5132 | 288 | |
f075ee0c | 289 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
290 | if (shstrtab == NULL) |
291 | { | |
c044fabd | 292 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
293 | offset = i_shdrp[shindex]->sh_offset; |
294 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
295 | |
296 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
297 | in case the string table is not terminated. */ | |
3471d59d | 298 | if (shstrtabsize + 1 <= 1 |
06614111 | 299 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
2bb3687b AM |
300 | || (shstrtab = _bfd_alloc_and_read (abfd, shstrtabsize + 1, |
301 | shstrtabsize)) == NULL) | |
302 | { | |
3471d59d CC |
303 | /* Once we've failed to read it, make sure we don't keep |
304 | trying. Otherwise, we'll keep allocating space for | |
305 | the string table over and over. */ | |
306 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
307 | } |
308 | else | |
309 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 310 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 311 | } |
f075ee0c | 312 | return (char *) shstrtab; |
252b5132 RH |
313 | } |
314 | ||
315 | char * | |
217aa764 AM |
316 | bfd_elf_string_from_elf_section (bfd *abfd, |
317 | unsigned int shindex, | |
318 | unsigned int strindex) | |
252b5132 RH |
319 | { |
320 | Elf_Internal_Shdr *hdr; | |
321 | ||
322 | if (strindex == 0) | |
323 | return ""; | |
324 | ||
74f2e02b AM |
325 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
326 | return NULL; | |
327 | ||
252b5132 RH |
328 | hdr = elf_elfsections (abfd)[shindex]; |
329 | ||
06614111 NC |
330 | if (hdr->contents == NULL) |
331 | { | |
332 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
333 | { | |
334 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 335 | /* xgettext:c-format */ |
871b3ab2 | 336 | _bfd_error_handler (_("%pB: attempt to load strings from" |
63a5468a | 337 | " a non-string section (number %d)"), |
06614111 NC |
338 | abfd, shindex); |
339 | return NULL; | |
340 | } | |
b1fa9dd6 | 341 | |
06614111 NC |
342 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
343 | return NULL; | |
344 | } | |
eed5def8 NC |
345 | else |
346 | { | |
347 | /* PR 24273: The string section's contents may have already | |
348 | been loaded elsewhere, eg because a corrupt file has the | |
349 | string section index in the ELF header pointing at a group | |
350 | section. So be paranoid, and test that the last byte of | |
351 | the section is zero. */ | |
352 | if (hdr->sh_size == 0 || hdr->contents[hdr->sh_size - 1] != 0) | |
353 | return NULL; | |
354 | } | |
252b5132 RH |
355 | |
356 | if (strindex >= hdr->sh_size) | |
357 | { | |
1b3a8575 | 358 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 359 | _bfd_error_handler |
695344c0 | 360 | /* xgettext:c-format */ |
2dcf00ce AM |
361 | (_("%pB: invalid string offset %u >= %" PRIu64 " for section `%s'"), |
362 | abfd, strindex, (uint64_t) hdr->sh_size, | |
1b3a8575 | 363 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 364 | ? ".shstrtab" |
1b3a8575 | 365 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 366 | return NULL; |
252b5132 RH |
367 | } |
368 | ||
369 | return ((char *) hdr->contents) + strindex; | |
370 | } | |
371 | ||
6cdc0ccc AM |
372 | /* Read and convert symbols to internal format. |
373 | SYMCOUNT specifies the number of symbols to read, starting from | |
374 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
375 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
376 | symbols, and symbol section index extensions, respectively. |
377 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
378 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
379 | |
380 | Elf_Internal_Sym * | |
217aa764 AM |
381 | bfd_elf_get_elf_syms (bfd *ibfd, |
382 | Elf_Internal_Shdr *symtab_hdr, | |
383 | size_t symcount, | |
384 | size_t symoffset, | |
385 | Elf_Internal_Sym *intsym_buf, | |
386 | void *extsym_buf, | |
387 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
388 | { |
389 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 390 | void *alloc_ext; |
df622259 | 391 | const bfd_byte *esym; |
6cdc0ccc AM |
392 | Elf_External_Sym_Shndx *alloc_extshndx; |
393 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 394 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
395 | Elf_Internal_Sym *isym; |
396 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 397 | const struct elf_backend_data *bed; |
6cdc0ccc | 398 | size_t extsym_size; |
1f4361a7 | 399 | size_t amt; |
6cdc0ccc AM |
400 | file_ptr pos; |
401 | ||
e44a2c9c AM |
402 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
403 | abort (); | |
404 | ||
6cdc0ccc AM |
405 | if (symcount == 0) |
406 | return intsym_buf; | |
407 | ||
408 | /* Normal syms might have section extension entries. */ | |
409 | shndx_hdr = NULL; | |
6a40cf0c NC |
410 | if (elf_symtab_shndx_list (ibfd) != NULL) |
411 | { | |
412 | elf_section_list * entry; | |
413 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
414 | ||
415 | /* Find an index section that is linked to this symtab section. */ | |
416 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
417 | { |
418 | /* PR 20063. */ | |
419 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
420 | continue; | |
421 | ||
422 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
423 | { | |
424 | shndx_hdr = & entry->hdr; | |
425 | break; | |
426 | }; | |
427 | } | |
6a40cf0c NC |
428 | |
429 | if (shndx_hdr == NULL) | |
430 | { | |
431 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
432 | /* Not really accurate, but this was how the old code used to work. */ | |
433 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
434 | /* Otherwise we do nothing. The assumption is that | |
435 | the index table will not be needed. */ | |
436 | } | |
437 | } | |
6cdc0ccc AM |
438 | |
439 | /* Read the symbols. */ | |
440 | alloc_ext = NULL; | |
441 | alloc_extshndx = NULL; | |
4dd07732 | 442 | alloc_intsym = NULL; |
6cdc0ccc AM |
443 | bed = get_elf_backend_data (ibfd); |
444 | extsym_size = bed->s->sizeof_sym; | |
1f4361a7 AM |
445 | if (_bfd_mul_overflow (symcount, extsym_size, &amt)) |
446 | { | |
447 | bfd_set_error (bfd_error_file_too_big); | |
448 | intsym_buf = NULL; | |
449 | goto out; | |
450 | } | |
6cdc0ccc AM |
451 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
452 | if (extsym_buf == NULL) | |
453 | { | |
1f4361a7 | 454 | alloc_ext = bfd_malloc (amt); |
6cdc0ccc AM |
455 | extsym_buf = alloc_ext; |
456 | } | |
457 | if (extsym_buf == NULL | |
458 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
459 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
460 | { | |
461 | intsym_buf = NULL; | |
462 | goto out; | |
463 | } | |
464 | ||
465 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
466 | extshndx_buf = NULL; | |
467 | else | |
468 | { | |
1f4361a7 AM |
469 | if (_bfd_mul_overflow (symcount, sizeof (Elf_External_Sym_Shndx), &amt)) |
470 | { | |
471 | bfd_set_error (bfd_error_file_too_big); | |
472 | intsym_buf = NULL; | |
473 | goto out; | |
474 | } | |
6cdc0ccc AM |
475 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
476 | if (extshndx_buf == NULL) | |
477 | { | |
1f4361a7 | 478 | alloc_extshndx = (Elf_External_Sym_Shndx *) bfd_malloc (amt); |
6cdc0ccc AM |
479 | extshndx_buf = alloc_extshndx; |
480 | } | |
481 | if (extshndx_buf == NULL | |
482 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
483 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
484 | { | |
485 | intsym_buf = NULL; | |
486 | goto out; | |
487 | } | |
488 | } | |
489 | ||
490 | if (intsym_buf == NULL) | |
491 | { | |
1f4361a7 AM |
492 | if (_bfd_mul_overflow (symcount, sizeof (Elf_Internal_Sym), &amt)) |
493 | { | |
494 | bfd_set_error (bfd_error_file_too_big); | |
495 | goto out; | |
496 | } | |
497 | alloc_intsym = (Elf_Internal_Sym *) bfd_malloc (amt); | |
4dd07732 | 498 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
499 | if (intsym_buf == NULL) |
500 | goto out; | |
501 | } | |
502 | ||
503 | /* Convert the symbols to internal form. */ | |
504 | isymend = intsym_buf + symcount; | |
a50b1753 | 505 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 506 | shndx = extshndx_buf; |
6cdc0ccc AM |
507 | isym < isymend; |
508 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
509 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
510 | { | |
511 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 512 | /* xgettext:c-format */ |
871b3ab2 | 513 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 514 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 515 | ibfd, (unsigned long) symoffset); |
4dd07732 AM |
516 | if (alloc_intsym != NULL) |
517 | free (alloc_intsym); | |
8384fb8f AM |
518 | intsym_buf = NULL; |
519 | goto out; | |
520 | } | |
6cdc0ccc AM |
521 | |
522 | out: | |
523 | if (alloc_ext != NULL) | |
524 | free (alloc_ext); | |
525 | if (alloc_extshndx != NULL) | |
526 | free (alloc_extshndx); | |
527 | ||
528 | return intsym_buf; | |
529 | } | |
530 | ||
5cab59f6 AM |
531 | /* Look up a symbol name. */ |
532 | const char * | |
be8dd2ca AM |
533 | bfd_elf_sym_name (bfd *abfd, |
534 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
535 | Elf_Internal_Sym *isym, |
536 | asection *sym_sec) | |
5cab59f6 | 537 | { |
26c61ae5 | 538 | const char *name; |
5cab59f6 | 539 | unsigned int iname = isym->st_name; |
be8dd2ca | 540 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 541 | |
138f35cc JJ |
542 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
543 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 544 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
545 | { |
546 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
547 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
548 | } | |
549 | ||
26c61ae5 L |
550 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
551 | if (name == NULL) | |
552 | name = "(null)"; | |
553 | else if (sym_sec && *name == '\0') | |
fd361982 | 554 | name = bfd_section_name (sym_sec); |
26c61ae5 L |
555 | |
556 | return name; | |
5cab59f6 AM |
557 | } |
558 | ||
dbb410c3 AM |
559 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
560 | sections. The first element is the flags, the rest are section | |
561 | pointers. */ | |
562 | ||
563 | typedef union elf_internal_group { | |
564 | Elf_Internal_Shdr *shdr; | |
565 | unsigned int flags; | |
566 | } Elf_Internal_Group; | |
567 | ||
b885599b AM |
568 | /* Return the name of the group signature symbol. Why isn't the |
569 | signature just a string? */ | |
570 | ||
571 | static const char * | |
217aa764 | 572 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 573 | { |
9dce4196 | 574 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
575 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
576 | Elf_External_Sym_Shndx eshndx; | |
577 | Elf_Internal_Sym isym; | |
b885599b | 578 | |
13792e9d L |
579 | /* First we need to ensure the symbol table is available. Make sure |
580 | that it is a symbol table section. */ | |
4fbb74a6 AM |
581 | if (ghdr->sh_link >= elf_numsections (abfd)) |
582 | return NULL; | |
13792e9d L |
583 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
584 | if (hdr->sh_type != SHT_SYMTAB | |
585 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
586 | return NULL; |
587 | ||
9dce4196 AM |
588 | /* Go read the symbol. */ |
589 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
590 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
591 | &isym, esym, &eshndx) == NULL) | |
b885599b | 592 | return NULL; |
9dce4196 | 593 | |
26c61ae5 | 594 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
595 | } |
596 | ||
dbb410c3 AM |
597 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
598 | ||
b34976b6 | 599 | static bfd_boolean |
217aa764 | 600 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
601 | { |
602 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
603 | ||
604 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
605 | is set to -1 if there are no SHT_GROUP sections. */ | |
606 | if (num_group == 0) | |
607 | { | |
608 | unsigned int i, shnum; | |
609 | ||
610 | /* First count the number of groups. If we have a SHT_GROUP | |
611 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 612 | shnum = elf_numsections (abfd); |
dbb410c3 | 613 | num_group = 0; |
08a40648 | 614 | |
44534af3 | 615 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 616 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 617 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
618 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
619 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 620 | |
dbb410c3 AM |
621 | for (i = 0; i < shnum; i++) |
622 | { | |
623 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 624 | |
44534af3 | 625 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
626 | num_group += 1; |
627 | } | |
628 | ||
629 | if (num_group == 0) | |
20dbb49d L |
630 | { |
631 | num_group = (unsigned) -1; | |
632 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 633 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
634 | } |
635 | else | |
dbb410c3 AM |
636 | { |
637 | /* We keep a list of elf section headers for group sections, | |
638 | so we can find them quickly. */ | |
1f4361a7 | 639 | size_t amt; |
d0fb9a8d | 640 | |
20dbb49d | 641 | elf_tdata (abfd)->num_group = num_group; |
1f4361a7 AM |
642 | amt = num_group * sizeof (Elf_Internal_Shdr *); |
643 | elf_tdata (abfd)->group_sect_ptr | |
644 | = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
dbb410c3 | 645 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 646 | return FALSE; |
dbb410c3 | 647 | num_group = 0; |
ce497010 | 648 | |
dbb410c3 AM |
649 | for (i = 0; i < shnum; i++) |
650 | { | |
651 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 652 | |
44534af3 | 653 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 654 | { |
973ffd63 | 655 | unsigned char *src; |
dbb410c3 AM |
656 | Elf_Internal_Group *dest; |
657 | ||
07d6d2b8 AM |
658 | /* Make sure the group section has a BFD section |
659 | attached to it. */ | |
660 | if (!bfd_section_from_shdr (abfd, i)) | |
661 | return FALSE; | |
662 | ||
dbb410c3 AM |
663 | /* Add to list of sections. */ |
664 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
665 | num_group += 1; | |
666 | ||
667 | /* Read the raw contents. */ | |
1f4361a7 AM |
668 | BFD_ASSERT (sizeof (*dest) >= 4 && sizeof (*dest) % 4 == 0); |
669 | shdr->contents = NULL; | |
670 | if (_bfd_mul_overflow (shdr->sh_size, | |
671 | sizeof (*dest) / 4, &amt) | |
1f4361a7 | 672 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 |
2bb3687b AM |
673 | || !(shdr->contents |
674 | = _bfd_alloc_and_read (abfd, amt, shdr->sh_size))) | |
493a3386 NC |
675 | { |
676 | _bfd_error_handler | |
695344c0 | 677 | /* xgettext:c-format */ |
871b3ab2 | 678 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
679 | " header: %#" PRIx64 ""), |
680 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
681 | bfd_set_error (bfd_error_bad_value); |
682 | -- num_group; | |
493a3386 NC |
683 | continue; |
684 | } | |
708d7d0d | 685 | |
dbb410c3 AM |
686 | /* Translate raw contents, a flag word followed by an |
687 | array of elf section indices all in target byte order, | |
688 | to the flag word followed by an array of elf section | |
689 | pointers. */ | |
690 | src = shdr->contents + shdr->sh_size; | |
691 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 692 | |
dbb410c3 AM |
693 | while (1) |
694 | { | |
695 | unsigned int idx; | |
696 | ||
697 | src -= 4; | |
698 | --dest; | |
699 | idx = H_GET_32 (abfd, src); | |
700 | if (src == shdr->contents) | |
701 | { | |
327301a4 | 702 | dest->shdr = NULL; |
dbb410c3 | 703 | dest->flags = idx; |
b885599b AM |
704 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
705 | shdr->bfd_section->flags | |
706 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
707 | break; |
708 | } | |
4bba0fb1 | 709 | if (idx < shnum) |
bae363f1 L |
710 | { |
711 | dest->shdr = elf_elfsections (abfd)[idx]; | |
712 | /* PR binutils/23199: All sections in a | |
713 | section group should be marked with | |
714 | SHF_GROUP. But some tools generate | |
715 | broken objects without SHF_GROUP. Fix | |
716 | them up here. */ | |
717 | dest->shdr->sh_flags |= SHF_GROUP; | |
718 | } | |
4bba0fb1 AM |
719 | if (idx >= shnum |
720 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 721 | { |
4eca0228 | 722 | _bfd_error_handler |
4bba0fb1 AM |
723 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
724 | abfd, i); | |
725 | dest->shdr = NULL; | |
dbb410c3 | 726 | } |
dbb410c3 AM |
727 | } |
728 | } | |
729 | } | |
493a3386 NC |
730 | |
731 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
732 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
733 | { | |
734 | elf_tdata (abfd)->num_group = num_group; | |
735 | ||
736 | /* If all groups are invalid then fail. */ | |
737 | if (num_group == 0) | |
738 | { | |
739 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
740 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 741 | _bfd_error_handler |
871b3ab2 | 742 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
743 | bfd_set_error (bfd_error_bad_value); |
744 | } | |
745 | } | |
dbb410c3 AM |
746 | } |
747 | } | |
748 | ||
749 | if (num_group != (unsigned) -1) | |
750 | { | |
564e11c9 JW |
751 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
752 | unsigned int j; | |
dbb410c3 | 753 | |
564e11c9 | 754 | for (j = 0; j < num_group; j++) |
dbb410c3 | 755 | { |
564e11c9 JW |
756 | /* Begin search from previous found group. */ |
757 | unsigned i = (j + search_offset) % num_group; | |
758 | ||
dbb410c3 | 759 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 760 | Elf_Internal_Group *idx; |
0c54f692 | 761 | bfd_size_type n_elt; |
ce497010 NC |
762 | |
763 | if (shdr == NULL) | |
764 | continue; | |
765 | ||
766 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
767 | if (idx == NULL || shdr->sh_size < 4) |
768 | { | |
769 | /* See PR 21957 for a reproducer. */ | |
770 | /* xgettext:c-format */ | |
871b3ab2 | 771 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
772 | abfd, shdr->bfd_section); |
773 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
774 | bfd_set_error (bfd_error_bad_value); | |
775 | return FALSE; | |
776 | } | |
ce497010 | 777 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
778 | |
779 | /* Look through this group's sections to see if current | |
780 | section is a member. */ | |
781 | while (--n_elt != 0) | |
782 | if ((++idx)->shdr == hdr) | |
783 | { | |
e0e8c97f | 784 | asection *s = NULL; |
dbb410c3 AM |
785 | |
786 | /* We are a member of this group. Go looking through | |
787 | other members to see if any others are linked via | |
788 | next_in_group. */ | |
789 | idx = (Elf_Internal_Group *) shdr->contents; | |
790 | n_elt = shdr->sh_size / 4; | |
791 | while (--n_elt != 0) | |
4bba0fb1 AM |
792 | if ((++idx)->shdr != NULL |
793 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 794 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
795 | break; |
796 | if (n_elt != 0) | |
797 | { | |
dbb410c3 AM |
798 | /* Snarf the group name from other member, and |
799 | insert current section in circular list. */ | |
945906ff AM |
800 | elf_group_name (newsect) = elf_group_name (s); |
801 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
802 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
803 | } |
804 | else | |
805 | { | |
dbb410c3 AM |
806 | const char *gname; |
807 | ||
b885599b AM |
808 | gname = group_signature (abfd, shdr); |
809 | if (gname == NULL) | |
b34976b6 | 810 | return FALSE; |
945906ff | 811 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
812 | |
813 | /* Start a circular list with one element. */ | |
945906ff | 814 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 815 | } |
b885599b | 816 | |
9dce4196 AM |
817 | /* If the group section has been created, point to the |
818 | new member. */ | |
dbb410c3 | 819 | if (shdr->bfd_section != NULL) |
945906ff | 820 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 821 | |
564e11c9 JW |
822 | elf_tdata (abfd)->group_search_offset = i; |
823 | j = num_group - 1; | |
dbb410c3 AM |
824 | break; |
825 | } | |
826 | } | |
827 | } | |
828 | ||
945906ff | 829 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 830 | { |
695344c0 | 831 | /* xgettext:c-format */ |
871b3ab2 | 832 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 833 | abfd, newsect); |
493a3386 | 834 | return FALSE; |
dbb410c3 | 835 | } |
b34976b6 | 836 | return TRUE; |
dbb410c3 AM |
837 | } |
838 | ||
3d7f7666 | 839 | bfd_boolean |
dd863624 | 840 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
841 | { |
842 | unsigned int i; | |
843 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
844 | bfd_boolean result = TRUE; | |
dd863624 L |
845 | asection *s; |
846 | ||
847 | /* Process SHF_LINK_ORDER. */ | |
848 | for (s = abfd->sections; s != NULL; s = s->next) | |
849 | { | |
850 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
851 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
852 | { | |
853 | unsigned int elfsec = this_hdr->sh_link; | |
854 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
855 | not set the sh_link or sh_info fields. Hence we could | |
856 | get the situation where elfsec is 0. */ | |
857 | if (elfsec == 0) | |
858 | { | |
4fbb74a6 | 859 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
860 | if (bed->link_order_error_handler) |
861 | bed->link_order_error_handler | |
695344c0 | 862 | /* xgettext:c-format */ |
871b3ab2 | 863 | (_("%pB: warning: sh_link not set for section `%pA'"), |
dd863624 L |
864 | abfd, s); |
865 | } | |
866 | else | |
867 | { | |
91d6fa6a | 868 | asection *linksec = NULL; |
25bbc984 | 869 | |
4fbb74a6 AM |
870 | if (elfsec < elf_numsections (abfd)) |
871 | { | |
872 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 873 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 874 | } |
25bbc984 L |
875 | |
876 | /* PR 1991, 2008: | |
877 | Some strip/objcopy may leave an incorrect value in | |
878 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 879 | if (linksec == NULL) |
25bbc984 | 880 | { |
4eca0228 | 881 | _bfd_error_handler |
695344c0 | 882 | /* xgettext:c-format */ |
871b3ab2 | 883 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 884 | s->owner, elfsec, s); |
25bbc984 L |
885 | result = FALSE; |
886 | } | |
887 | ||
91d6fa6a | 888 | elf_linked_to_section (s) = linksec; |
dd863624 L |
889 | } |
890 | } | |
53720c49 AM |
891 | else if (this_hdr->sh_type == SHT_GROUP |
892 | && elf_next_in_group (s) == NULL) | |
893 | { | |
4eca0228 | 894 | _bfd_error_handler |
695344c0 | 895 | /* xgettext:c-format */ |
871b3ab2 | 896 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
897 | abfd, elf_section_data (s)->this_idx); |
898 | result = FALSE; | |
899 | } | |
dd863624 | 900 | } |
3d7f7666 | 901 | |
dd863624 | 902 | /* Process section groups. */ |
3d7f7666 L |
903 | if (num_group == (unsigned) -1) |
904 | return result; | |
905 | ||
906 | for (i = 0; i < num_group; i++) | |
907 | { | |
908 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
909 | Elf_Internal_Group *idx; |
910 | unsigned int n_elt; | |
3d7f7666 | 911 | |
4b0e8a5f NC |
912 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
913 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
914 | { | |
4eca0228 | 915 | _bfd_error_handler |
695344c0 | 916 | /* xgettext:c-format */ |
871b3ab2 | 917 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
918 | abfd, i); |
919 | result = FALSE; | |
920 | continue; | |
921 | } | |
922 | ||
923 | idx = (Elf_Internal_Group *) shdr->contents; | |
924 | n_elt = shdr->sh_size / 4; | |
1b786873 | 925 | |
3d7f7666 | 926 | while (--n_elt != 0) |
24d3e51b NC |
927 | { |
928 | ++ idx; | |
929 | ||
930 | if (idx->shdr == NULL) | |
931 | continue; | |
932 | else if (idx->shdr->bfd_section) | |
933 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
934 | else if (idx->shdr->sh_type != SHT_RELA |
935 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
936 | { |
937 | /* There are some unknown sections in the group. */ | |
938 | _bfd_error_handler | |
939 | /* xgettext:c-format */ | |
871b3ab2 | 940 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
941 | abfd, |
942 | idx->shdr->sh_type, | |
943 | bfd_elf_string_from_elf_section (abfd, | |
944 | (elf_elfheader (abfd) | |
945 | ->e_shstrndx), | |
946 | idx->shdr->sh_name), | |
947 | shdr->bfd_section); | |
948 | result = FALSE; | |
949 | } | |
950 | } | |
3d7f7666 | 951 | } |
24d3e51b | 952 | |
3d7f7666 L |
953 | return result; |
954 | } | |
955 | ||
72adc230 AM |
956 | bfd_boolean |
957 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
958 | { | |
959 | return elf_next_in_group (sec) != NULL; | |
960 | } | |
961 | ||
cb7f4b29 AM |
962 | const char * |
963 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
964 | { | |
965 | if (elf_sec_group (sec) != NULL) | |
966 | return elf_group_name (sec); | |
967 | return NULL; | |
968 | } | |
969 | ||
f6fe1ccd L |
970 | static char * |
971 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
972 | { | |
973 | unsigned int len = strlen (name); | |
974 | char *new_name = bfd_alloc (abfd, len + 2); | |
975 | if (new_name == NULL) | |
976 | return NULL; | |
977 | new_name[0] = '.'; | |
978 | new_name[1] = 'z'; | |
979 | memcpy (new_name + 2, name + 1, len); | |
980 | return new_name; | |
981 | } | |
982 | ||
983 | static char * | |
984 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
985 | { | |
986 | unsigned int len = strlen (name); | |
987 | char *new_name = bfd_alloc (abfd, len); | |
988 | if (new_name == NULL) | |
989 | return NULL; | |
990 | new_name[0] = '.'; | |
991 | memcpy (new_name + 1, name + 2, len - 1); | |
992 | return new_name; | |
993 | } | |
994 | ||
cc5277b1 ML |
995 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
996 | ||
997 | struct lto_section | |
998 | { | |
999 | int16_t major_version; | |
1000 | int16_t minor_version; | |
1001 | unsigned char slim_object; | |
1002 | ||
1003 | /* Flags is a private field that is not defined publicly. */ | |
1004 | uint16_t flags; | |
1005 | }; | |
1006 | ||
252b5132 RH |
1007 | /* Make a BFD section from an ELF section. We store a pointer to the |
1008 | BFD section in the bfd_section field of the header. */ | |
1009 | ||
b34976b6 | 1010 | bfd_boolean |
217aa764 AM |
1011 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1012 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1013 | const char *name, |
1014 | int shindex) | |
252b5132 RH |
1015 | { |
1016 | asection *newsect; | |
1017 | flagword flags; | |
9c5bfbb7 | 1018 | const struct elf_backend_data *bed; |
252b5132 RH |
1019 | |
1020 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1021 | return TRUE; |
252b5132 RH |
1022 | |
1023 | newsect = bfd_make_section_anyway (abfd, name); | |
1024 | if (newsect == NULL) | |
b34976b6 | 1025 | return FALSE; |
252b5132 | 1026 | |
1829f4b2 AM |
1027 | hdr->bfd_section = newsect; |
1028 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1029 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1030 | |
2f89ff8d L |
1031 | /* Always use the real type/flags. */ |
1032 | elf_section_type (newsect) = hdr->sh_type; | |
1033 | elf_section_flags (newsect) = hdr->sh_flags; | |
1034 | ||
252b5132 RH |
1035 | newsect->filepos = hdr->sh_offset; |
1036 | ||
fd361982 AM |
1037 | if (!bfd_set_section_vma (newsect, hdr->sh_addr) |
1038 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1039 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign))) | |
b34976b6 | 1040 | return FALSE; |
252b5132 RH |
1041 | |
1042 | flags = SEC_NO_FLAGS; | |
1043 | if (hdr->sh_type != SHT_NOBITS) | |
1044 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1045 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1046 | flags |= SEC_GROUP; |
252b5132 RH |
1047 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1048 | { | |
1049 | flags |= SEC_ALLOC; | |
1050 | if (hdr->sh_type != SHT_NOBITS) | |
1051 | flags |= SEC_LOAD; | |
1052 | } | |
1053 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1054 | flags |= SEC_READONLY; | |
1055 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1056 | flags |= SEC_CODE; | |
1057 | else if ((flags & SEC_LOAD) != 0) | |
1058 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1059 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1060 | { | |
1061 | flags |= SEC_MERGE; | |
1062 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1063 | } |
84865015 NC |
1064 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1065 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1066 | if (hdr->sh_flags & SHF_GROUP) |
1067 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1068 | return FALSE; |
13ae64f3 JJ |
1069 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1070 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1071 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1072 | flags |= SEC_EXCLUDE; | |
252b5132 | 1073 | |
df3a023b AM |
1074 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1075 | { | |
1076 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1077 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1078 | byte. */ | |
1079 | case ELFOSABI_NONE: | |
1080 | case ELFOSABI_GNU: | |
1081 | case ELFOSABI_FREEBSD: | |
1082 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) | |
1083 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1084 | break; | |
1085 | } | |
1086 | ||
3d2b39cf | 1087 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1088 | { |
3d2b39cf L |
1089 | /* The debugging sections appear to be recognized only by name, |
1090 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1091 | if (name [0] == '.') |
1092 | { | |
bb294208 AM |
1093 | if (strncmp (name, ".debug", 6) == 0 |
1094 | || strncmp (name, ".gnu.linkonce.wi.", 17) == 0 | |
1095 | || strncmp (name, ".zdebug", 7) == 0) | |
1096 | flags |= SEC_DEBUGGING | SEC_ELF_OCTETS; | |
1097 | else if (strncmp (name, GNU_BUILD_ATTRS_SECTION_NAME, 21) == 0 | |
1098 | || strncmp (name, ".note.gnu", 9) == 0) | |
1099 | flags |= SEC_ELF_OCTETS; | |
1100 | else if (strncmp (name, ".line", 5) == 0 | |
1101 | || strncmp (name, ".stab", 5) == 0 | |
1102 | || strcmp (name, ".gdb_index") == 0) | |
3d2b39cf L |
1103 | flags |= SEC_DEBUGGING; |
1104 | } | |
1105 | } | |
252b5132 RH |
1106 | |
1107 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1108 | only link a single copy of the section. This is used to support | |
1109 | g++. g++ will emit each template expansion in its own section. | |
1110 | The symbols will be defined as weak, so that multiple definitions | |
1111 | are permitted. The GNU linker extension is to actually discard | |
1112 | all but one of the sections. */ | |
0112cd26 | 1113 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1114 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1115 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1116 | ||
8c803a2d AM |
1117 | if (!bfd_set_section_flags (newsect, flags)) |
1118 | return FALSE; | |
1119 | ||
fa152c49 JW |
1120 | bed = get_elf_backend_data (abfd); |
1121 | if (bed->elf_backend_section_flags) | |
8c803a2d | 1122 | if (!bed->elf_backend_section_flags (hdr)) |
b34976b6 | 1123 | return FALSE; |
fa152c49 | 1124 | |
718175fa JK |
1125 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1126 | separate debug info files which may have the segments offsets corrupted. | |
1127 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1128 | if (hdr->sh_type == SHT_NOTE) | |
1129 | { | |
baea7ef1 | 1130 | bfd_byte *contents; |
718175fa | 1131 | |
baea7ef1 | 1132 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1133 | return FALSE; |
1134 | ||
276da9b3 L |
1135 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1136 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1137 | free (contents); |
1138 | } | |
1139 | ||
8c803a2d | 1140 | if ((newsect->flags & SEC_ALLOC) != 0) |
252b5132 RH |
1141 | { |
1142 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1143 | unsigned int i, nload; |
1144 | ||
1145 | /* Some ELF linkers produce binaries with all the program header | |
1146 | p_paddr fields zero. If we have such a binary with more than | |
1147 | one PT_LOAD header, then leave the section lma equal to vma | |
1148 | so that we don't create sections with overlapping lma. */ | |
1149 | phdr = elf_tdata (abfd)->phdr; | |
1150 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1151 | if (phdr->p_paddr != 0) | |
1152 | break; | |
1153 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1154 | ++nload; | |
1155 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1156 | return TRUE; | |
252b5132 | 1157 | |
252b5132 RH |
1158 | phdr = elf_tdata (abfd)->phdr; |
1159 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1160 | { | |
86b2281f AM |
1161 | if (((phdr->p_type == PT_LOAD |
1162 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1163 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1164 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1165 | { |
8c803a2d | 1166 | if ((newsect->flags & SEC_LOAD) == 0) |
88967714 AM |
1167 | newsect->lma = (phdr->p_paddr |
1168 | + hdr->sh_addr - phdr->p_vaddr); | |
1169 | else | |
1170 | /* We used to use the same adjustment for SEC_LOAD | |
1171 | sections, but that doesn't work if the segment | |
1172 | is packed with code from multiple VMAs. | |
1173 | Instead we calculate the section LMA based on | |
1174 | the segment LMA. It is assumed that the | |
1175 | segment will contain sections with contiguous | |
1176 | LMAs, even if the VMAs are not. */ | |
1177 | newsect->lma = (phdr->p_paddr | |
1178 | + hdr->sh_offset - phdr->p_offset); | |
1179 | ||
1180 | /* With contiguous segments, we can't tell from file | |
1181 | offsets whether a section with zero size should | |
1182 | be placed at the end of one segment or the | |
1183 | beginning of the next. Decide based on vaddr. */ | |
1184 | if (hdr->sh_addr >= phdr->p_vaddr | |
1185 | && (hdr->sh_addr + hdr->sh_size | |
1186 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1187 | break; | |
252b5132 RH |
1188 | } |
1189 | } | |
1190 | } | |
1191 | ||
4a114e3e L |
1192 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1193 | .zdebug_*, after the section flags is set. */ | |
8c803a2d | 1194 | if ((newsect->flags & SEC_DEBUGGING) |
4a114e3e L |
1195 | && ((name[1] == 'd' && name[6] == '_') |
1196 | || (name[1] == 'z' && name[7] == '_'))) | |
1197 | { | |
1198 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1199 | int compression_header_size; |
dab394de | 1200 | bfd_size_type uncompressed_size; |
4207142d | 1201 | unsigned int uncompressed_align_power; |
151411f8 L |
1202 | bfd_boolean compressed |
1203 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1204 | &compression_header_size, |
4207142d MW |
1205 | &uncompressed_size, |
1206 | &uncompressed_align_power); | |
151411f8 | 1207 | if (compressed) |
4a114e3e L |
1208 | { |
1209 | /* Compressed section. Check if we should decompress. */ | |
1210 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1211 | action = decompress; | |
1212 | } | |
151411f8 L |
1213 | |
1214 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1215 | section. Check if we should compress. */ | |
1216 | if (action == nothing) | |
4a114e3e | 1217 | { |
151411f8 L |
1218 | if (newsect->size != 0 |
1219 | && (abfd->flags & BFD_COMPRESS) | |
1220 | && compression_header_size >= 0 | |
dab394de | 1221 | && uncompressed_size > 0 |
151411f8 L |
1222 | && (!compressed |
1223 | || ((compression_header_size > 0) | |
1224 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1225 | action = compress; |
151411f8 L |
1226 | else |
1227 | return TRUE; | |
4a114e3e L |
1228 | } |
1229 | ||
151411f8 | 1230 | if (action == compress) |
4a114e3e | 1231 | { |
4a114e3e L |
1232 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1233 | { | |
4eca0228 | 1234 | _bfd_error_handler |
695344c0 | 1235 | /* xgettext:c-format */ |
871b3ab2 | 1236 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1237 | abfd, name); |
1238 | return FALSE; | |
1239 | } | |
151411f8 L |
1240 | } |
1241 | else | |
1242 | { | |
4a114e3e L |
1243 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1244 | { | |
4eca0228 | 1245 | _bfd_error_handler |
695344c0 | 1246 | /* xgettext:c-format */ |
871b3ab2 | 1247 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1248 | abfd, name); |
1249 | return FALSE; | |
1250 | } | |
151411f8 L |
1251 | } |
1252 | ||
f6fe1ccd | 1253 | if (abfd->is_linker_input) |
151411f8 | 1254 | { |
f6fe1ccd L |
1255 | if (name[1] == 'z' |
1256 | && (action == decompress | |
1257 | || (action == compress | |
1258 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1259 | { |
f6fe1ccd L |
1260 | /* Convert section name from .zdebug_* to .debug_* so |
1261 | that linker will consider this section as a debug | |
1262 | section. */ | |
1263 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1264 | if (new_name == NULL) |
1265 | return FALSE; | |
fd361982 | 1266 | bfd_rename_section (newsect, new_name); |
151411f8 | 1267 | } |
4a114e3e | 1268 | } |
f6fe1ccd L |
1269 | else |
1270 | /* For objdump, don't rename the section. For objcopy, delay | |
1271 | section rename to elf_fake_sections. */ | |
1272 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1273 | } |
1274 | ||
cc5277b1 ML |
1275 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1276 | section. */ | |
1277 | const char *lto_section_name = ".gnu.lto_.lto."; | |
1278 | if (strncmp (name, lto_section_name, strlen (lto_section_name)) == 0) | |
1279 | { | |
1280 | struct lto_section lsection; | |
1281 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1282 | sizeof (struct lto_section))) | |
1283 | abfd->lto_slim_object = lsection.slim_object; | |
1284 | } | |
1285 | ||
b34976b6 | 1286 | return TRUE; |
252b5132 RH |
1287 | } |
1288 | ||
84865015 NC |
1289 | const char *const bfd_elf_section_type_names[] = |
1290 | { | |
252b5132 RH |
1291 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1292 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1293 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1294 | }; | |
1295 | ||
1049f94e | 1296 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1297 | output, and the reloc is against an external symbol, and nothing |
1298 | has given us any additional addend, the resulting reloc will also | |
1299 | be against the same symbol. In such a case, we don't want to | |
1300 | change anything about the way the reloc is handled, since it will | |
1301 | all be done at final link time. Rather than put special case code | |
1302 | into bfd_perform_relocation, all the reloc types use this howto | |
1303 | function. It just short circuits the reloc if producing | |
1049f94e | 1304 | relocatable output against an external symbol. */ |
252b5132 | 1305 | |
252b5132 | 1306 | bfd_reloc_status_type |
217aa764 AM |
1307 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1308 | arelent *reloc_entry, | |
1309 | asymbol *symbol, | |
1310 | void *data ATTRIBUTE_UNUSED, | |
1311 | asection *input_section, | |
1312 | bfd *output_bfd, | |
1313 | char **error_message ATTRIBUTE_UNUSED) | |
1314 | { | |
1315 | if (output_bfd != NULL | |
252b5132 RH |
1316 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1317 | && (! reloc_entry->howto->partial_inplace | |
1318 | || reloc_entry->addend == 0)) | |
1319 | { | |
1320 | reloc_entry->address += input_section->output_offset; | |
1321 | return bfd_reloc_ok; | |
1322 | } | |
1323 | ||
1324 | return bfd_reloc_continue; | |
1325 | } | |
1326 | \f | |
84865015 NC |
1327 | /* Returns TRUE if section A matches section B. |
1328 | Names, addresses and links may be different, but everything else | |
1329 | should be the same. */ | |
1330 | ||
1331 | static bfd_boolean | |
5522f910 NC |
1332 | section_match (const Elf_Internal_Shdr * a, |
1333 | const Elf_Internal_Shdr * b) | |
84865015 | 1334 | { |
ac85e67c AM |
1335 | if (a->sh_type != b->sh_type |
1336 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1337 | || a->sh_addralign != b->sh_addralign | |
1338 | || a->sh_entsize != b->sh_entsize) | |
1339 | return FALSE; | |
1340 | if (a->sh_type == SHT_SYMTAB | |
1341 | || a->sh_type == SHT_STRTAB) | |
1342 | return TRUE; | |
1343 | return a->sh_size == b->sh_size; | |
84865015 NC |
1344 | } |
1345 | ||
1346 | /* Find a section in OBFD that has the same characteristics | |
1347 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1348 | none can be found. Check's section HINT first, as this is likely | |
1349 | to be the correct section. */ | |
1350 | ||
1351 | static unsigned int | |
5cc4ca83 ST |
1352 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1353 | const unsigned int hint) | |
84865015 NC |
1354 | { |
1355 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1356 | unsigned int i; | |
1357 | ||
a55c9876 NC |
1358 | BFD_ASSERT (iheader != NULL); |
1359 | ||
1360 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1361 | if (hint < elf_numsections (obfd) |
1362 | && oheaders[hint] != NULL | |
a55c9876 | 1363 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1364 | return hint; |
1365 | ||
1366 | for (i = 1; i < elf_numsections (obfd); i++) | |
1367 | { | |
1368 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1369 | ||
a55c9876 NC |
1370 | if (oheader == NULL) |
1371 | continue; | |
84865015 NC |
1372 | if (section_match (oheader, iheader)) |
1373 | /* FIXME: Do we care if there is a potential for | |
1374 | multiple matches ? */ | |
1375 | return i; | |
1376 | } | |
1377 | ||
1378 | return SHN_UNDEF; | |
1379 | } | |
1380 | ||
5522f910 NC |
1381 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1382 | Processor specific section, based upon a matching input section. | |
1383 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1384 | |
5522f910 NC |
1385 | static bfd_boolean |
1386 | copy_special_section_fields (const bfd *ibfd, | |
1387 | bfd *obfd, | |
1388 | const Elf_Internal_Shdr *iheader, | |
1389 | Elf_Internal_Shdr *oheader, | |
1390 | const unsigned int secnum) | |
1391 | { | |
1392 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1393 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1394 | bfd_boolean changed = FALSE; | |
1395 | unsigned int sh_link; | |
1396 | ||
1397 | if (oheader->sh_type == SHT_NOBITS) | |
1398 | { | |
1399 | /* This is a feature for objcopy --only-keep-debug: | |
1400 | When a section's type is changed to NOBITS, we preserve | |
1401 | the sh_link and sh_info fields so that they can be | |
1402 | matched up with the original. | |
1403 | ||
1404 | Note: Strictly speaking these assignments are wrong. | |
1405 | The sh_link and sh_info fields should point to the | |
1406 | relevent sections in the output BFD, which may not be in | |
1407 | the same location as they were in the input BFD. But | |
1408 | the whole point of this action is to preserve the | |
1409 | original values of the sh_link and sh_info fields, so | |
1410 | that they can be matched up with the section headers in | |
1411 | the original file. So strictly speaking we may be | |
1412 | creating an invalid ELF file, but it is only for a file | |
1413 | that just contains debug info and only for sections | |
1414 | without any contents. */ | |
1415 | if (oheader->sh_link == 0) | |
1416 | oheader->sh_link = iheader->sh_link; | |
1417 | if (oheader->sh_info == 0) | |
1418 | oheader->sh_info = iheader->sh_info; | |
1419 | return TRUE; | |
1420 | } | |
1421 | ||
1422 | /* Allow the target a chance to decide how these fields should be set. */ | |
1423 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1424 | && bed->elf_backend_copy_special_section_fields | |
1425 | (ibfd, obfd, iheader, oheader)) | |
1426 | return TRUE; | |
1427 | ||
1428 | /* We have an iheader which might match oheader, and which has non-zero | |
1429 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1430 | the section in the output bfd which corresponds to the linked section | |
1431 | in the input bfd. */ | |
1432 | if (iheader->sh_link != SHN_UNDEF) | |
1433 | { | |
4f3ca05b NC |
1434 | /* See PR 20931 for a reproducer. */ |
1435 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1436 | { | |
76cfced5 | 1437 | _bfd_error_handler |
4f3ca05b | 1438 | /* xgettext:c-format */ |
9793eb77 | 1439 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1440 | ibfd, iheader->sh_link, secnum); |
1441 | return FALSE; | |
1442 | } | |
1443 | ||
5522f910 NC |
1444 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1445 | if (sh_link != SHN_UNDEF) | |
1446 | { | |
1447 | oheader->sh_link = sh_link; | |
1448 | changed = TRUE; | |
1449 | } | |
1450 | else | |
1451 | /* FIXME: Should we install iheader->sh_link | |
1452 | if we could not find a match ? */ | |
76cfced5 | 1453 | _bfd_error_handler |
695344c0 | 1454 | /* xgettext:c-format */ |
9793eb77 | 1455 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1456 | } |
1457 | ||
1458 | if (iheader->sh_info) | |
1459 | { | |
1460 | /* The sh_info field can hold arbitrary information, but if the | |
1461 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1462 | section index. */ | |
1463 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1464 | { | |
1465 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1466 | iheader->sh_info); | |
1467 | if (sh_link != SHN_UNDEF) | |
1468 | oheader->sh_flags |= SHF_INFO_LINK; | |
1469 | } | |
1470 | else | |
1471 | /* No idea what it means - just copy it. */ | |
1472 | sh_link = iheader->sh_info; | |
1473 | ||
1474 | if (sh_link != SHN_UNDEF) | |
1475 | { | |
1476 | oheader->sh_info = sh_link; | |
1477 | changed = TRUE; | |
1478 | } | |
1479 | else | |
76cfced5 | 1480 | _bfd_error_handler |
695344c0 | 1481 | /* xgettext:c-format */ |
9793eb77 | 1482 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1483 | } |
1484 | ||
1485 | return changed; | |
1486 | } | |
07d6d2b8 | 1487 | |
0ac4564e L |
1488 | /* Copy the program header and other data from one object module to |
1489 | another. */ | |
252b5132 | 1490 | |
b34976b6 | 1491 | bfd_boolean |
217aa764 | 1492 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1493 | { |
5522f910 NC |
1494 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1495 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1496 | const struct elf_backend_data *bed; | |
84865015 NC |
1497 | unsigned int i; |
1498 | ||
2d502050 | 1499 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1500 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1501 | return TRUE; |
2d502050 | 1502 | |
57b828ef L |
1503 | if (!elf_flags_init (obfd)) |
1504 | { | |
1505 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1506 | elf_flags_init (obfd) = TRUE; | |
1507 | } | |
2d502050 | 1508 | |
0ac4564e | 1509 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1510 | |
1511 | /* Also copy the EI_OSABI field. */ | |
1512 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1513 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1514 | |
5522f910 NC |
1515 | /* If set, copy the EI_ABIVERSION field. */ |
1516 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1517 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1518 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1519 | |
104d59d1 JM |
1520 | /* Copy object attributes. */ |
1521 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1522 | |
84865015 NC |
1523 | if (iheaders == NULL || oheaders == NULL) |
1524 | return TRUE; | |
63b9bbb7 | 1525 | |
5522f910 NC |
1526 | bed = get_elf_backend_data (obfd); |
1527 | ||
1528 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1529 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1530 | { |
84865015 NC |
1531 | unsigned int j; |
1532 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1533 | |
5522f910 NC |
1534 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1535 | because of a special case need for generating separate debug info | |
1536 | files. See below for more details. */ | |
84865015 NC |
1537 | if (oheader == NULL |
1538 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1539 | && oheader->sh_type < SHT_LOOS)) |
1540 | continue; | |
1541 | ||
1542 | /* Ignore empty sections, and sections whose | |
1543 | fields have already been initialised. */ | |
1544 | if (oheader->sh_size == 0 | |
84865015 NC |
1545 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1546 | continue; | |
63b9bbb7 | 1547 | |
84865015 | 1548 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1549 | First we try for a direct mapping between the input and output sections. */ |
1550 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1551 | { | |
1552 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1553 | ||
1554 | if (iheader == NULL) | |
1555 | continue; | |
1556 | ||
1557 | if (oheader->bfd_section != NULL | |
1558 | && iheader->bfd_section != NULL | |
1559 | && iheader->bfd_section->output_section != NULL | |
1560 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1561 | { | |
1562 | /* We have found a connection from the input section to the | |
1563 | output section. Attempt to copy the header fields. If | |
1564 | this fails then do not try any further sections - there | |
1565 | should only be a one-to-one mapping between input and output. */ | |
1566 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1567 | j = elf_numsections (ibfd); | |
1568 | break; | |
1569 | } | |
1570 | } | |
1571 | ||
1572 | if (j < elf_numsections (ibfd)) | |
1573 | continue; | |
1574 | ||
1575 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1576 | Unfortunately we cannot compare names as the output string table |
1577 | is empty, so instead we check size, address and type. */ | |
1578 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1579 | { | |
5522f910 | 1580 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1581 | |
5522f910 NC |
1582 | if (iheader == NULL) |
1583 | continue; | |
1584 | ||
1585 | /* Try matching fields in the input section's header. | |
1586 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1587 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1588 | input type. */ | |
1589 | if ((oheader->sh_type == SHT_NOBITS | |
1590 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1591 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1592 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1593 | && iheader->sh_addralign == oheader->sh_addralign |
1594 | && iheader->sh_entsize == oheader->sh_entsize | |
1595 | && iheader->sh_size == oheader->sh_size | |
1596 | && iheader->sh_addr == oheader->sh_addr | |
1597 | && (iheader->sh_info != oheader->sh_info | |
1598 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1599 | { |
5522f910 NC |
1600 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1601 | break; | |
63b9bbb7 NC |
1602 | } |
1603 | } | |
5522f910 NC |
1604 | |
1605 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1606 | { | |
1607 | /* Final attempt. Call the backend copy function | |
1608 | with a NULL input section. */ | |
1609 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1610 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1611 | } | |
63b9bbb7 NC |
1612 | } |
1613 | ||
b34976b6 | 1614 | return TRUE; |
2d502050 L |
1615 | } |
1616 | ||
cedc298e L |
1617 | static const char * |
1618 | get_segment_type (unsigned int p_type) | |
1619 | { | |
1620 | const char *pt; | |
1621 | switch (p_type) | |
1622 | { | |
1623 | case PT_NULL: pt = "NULL"; break; | |
1624 | case PT_LOAD: pt = "LOAD"; break; | |
1625 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1626 | case PT_INTERP: pt = "INTERP"; break; | |
1627 | case PT_NOTE: pt = "NOTE"; break; | |
1628 | case PT_SHLIB: pt = "SHLIB"; break; | |
1629 | case PT_PHDR: pt = "PHDR"; break; | |
1630 | case PT_TLS: pt = "TLS"; break; | |
1631 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1632 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1633 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1634 | default: pt = NULL; break; | |
1635 | } | |
1636 | return pt; | |
1637 | } | |
1638 | ||
f0b79d91 L |
1639 | /* Print out the program headers. */ |
1640 | ||
b34976b6 | 1641 | bfd_boolean |
217aa764 | 1642 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1643 | { |
a50b1753 | 1644 | FILE *f = (FILE *) farg; |
252b5132 RH |
1645 | Elf_Internal_Phdr *p; |
1646 | asection *s; | |
1647 | bfd_byte *dynbuf = NULL; | |
1648 | ||
1649 | p = elf_tdata (abfd)->phdr; | |
1650 | if (p != NULL) | |
1651 | { | |
1652 | unsigned int i, c; | |
1653 | ||
1654 | fprintf (f, _("\nProgram Header:\n")); | |
1655 | c = elf_elfheader (abfd)->e_phnum; | |
1656 | for (i = 0; i < c; i++, p++) | |
1657 | { | |
cedc298e | 1658 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1659 | char buf[20]; |
1660 | ||
cedc298e | 1661 | if (pt == NULL) |
252b5132 | 1662 | { |
cedc298e L |
1663 | sprintf (buf, "0x%lx", p->p_type); |
1664 | pt = buf; | |
252b5132 | 1665 | } |
dc810e39 | 1666 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1667 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1668 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1669 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1670 | fprintf (f, " paddr 0x"); |
60b89a18 | 1671 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1672 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1673 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1674 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1675 | fprintf (f, " memsz 0x"); |
60b89a18 | 1676 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1677 | fprintf (f, " flags %c%c%c", |
1678 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1679 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1680 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1681 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1682 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1683 | fprintf (f, "\n"); |
1684 | } | |
1685 | } | |
1686 | ||
1687 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1688 | if (s != NULL) | |
1689 | { | |
cb33740c | 1690 | unsigned int elfsec; |
dc810e39 | 1691 | unsigned long shlink; |
252b5132 RH |
1692 | bfd_byte *extdyn, *extdynend; |
1693 | size_t extdynsize; | |
217aa764 | 1694 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1695 | |
1696 | fprintf (f, _("\nDynamic Section:\n")); | |
1697 | ||
eea6121a | 1698 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1699 | goto error_return; |
1700 | ||
1701 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1702 | if (elfsec == SHN_BAD) |
252b5132 | 1703 | goto error_return; |
dc810e39 | 1704 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1705 | |
1706 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1707 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1708 | ||
1709 | extdyn = dynbuf; | |
06614111 NC |
1710 | /* PR 17512: file: 6f427532. */ |
1711 | if (s->size < extdynsize) | |
1712 | goto error_return; | |
eea6121a | 1713 | extdynend = extdyn + s->size; |
1036838a | 1714 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1715 | Fix range check. */ |
1036838a | 1716 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1717 | { |
1718 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1719 | const char *name = ""; |
252b5132 | 1720 | char ab[20]; |
b34976b6 | 1721 | bfd_boolean stringp; |
ad9563d6 | 1722 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1723 | |
217aa764 | 1724 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1725 | |
1726 | if (dyn.d_tag == DT_NULL) | |
1727 | break; | |
1728 | ||
b34976b6 | 1729 | stringp = FALSE; |
252b5132 RH |
1730 | switch (dyn.d_tag) |
1731 | { | |
1732 | default: | |
ad9563d6 CM |
1733 | if (bed->elf_backend_get_target_dtag) |
1734 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1735 | ||
1736 | if (!strcmp (name, "")) | |
1737 | { | |
cd9af601 | 1738 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1739 | name = ab; |
1740 | } | |
252b5132 RH |
1741 | break; |
1742 | ||
b34976b6 | 1743 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1744 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1745 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1746 | case DT_HASH: name = "HASH"; break; | |
1747 | case DT_STRTAB: name = "STRTAB"; break; | |
1748 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1749 | case DT_RELA: name = "RELA"; break; | |
1750 | case DT_RELASZ: name = "RELASZ"; break; | |
1751 | case DT_RELAENT: name = "RELAENT"; break; | |
1752 | case DT_STRSZ: name = "STRSZ"; break; | |
1753 | case DT_SYMENT: name = "SYMENT"; break; | |
1754 | case DT_INIT: name = "INIT"; break; | |
1755 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1756 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1757 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1758 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1759 | case DT_REL: name = "REL"; break; | |
1760 | case DT_RELSZ: name = "RELSZ"; break; | |
1761 | case DT_RELENT: name = "RELENT"; break; | |
1762 | case DT_PLTREL: name = "PLTREL"; break; | |
1763 | case DT_DEBUG: name = "DEBUG"; break; | |
1764 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1765 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1766 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1767 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1768 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1769 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1770 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1771 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1772 | case DT_FLAGS: name = "FLAGS"; break; |
1773 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1774 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1775 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1776 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1777 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1778 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1779 | case DT_FEATURE: name = "FEATURE"; break; | |
1780 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1781 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1782 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1783 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1784 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1785 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1786 | case DT_PLTPAD: name = "PLTPAD"; break; |
1787 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1788 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1789 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1790 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1791 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1792 | case DT_VERSYM: name = "VERSYM"; break; |
1793 | case DT_VERDEF: name = "VERDEF"; break; | |
1794 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1795 | case DT_VERNEED: name = "VERNEED"; break; | |
1796 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1797 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1798 | case DT_USED: name = "USED"; break; |
b34976b6 | 1799 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1800 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1801 | } |
1802 | ||
ad9563d6 | 1803 | fprintf (f, " %-20s ", name); |
252b5132 | 1804 | if (! stringp) |
a1f3c56e AN |
1805 | { |
1806 | fprintf (f, "0x"); | |
1807 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1808 | } | |
252b5132 RH |
1809 | else |
1810 | { | |
1811 | const char *string; | |
dc810e39 | 1812 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1813 | |
dc810e39 | 1814 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1815 | if (string == NULL) |
1816 | goto error_return; | |
1817 | fprintf (f, "%s", string); | |
1818 | } | |
1819 | fprintf (f, "\n"); | |
1820 | } | |
1821 | ||
1822 | free (dynbuf); | |
1823 | dynbuf = NULL; | |
1824 | } | |
1825 | ||
1826 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1827 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1828 | { | |
fc0e6df6 | 1829 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1830 | return FALSE; |
252b5132 RH |
1831 | } |
1832 | ||
1833 | if (elf_dynverdef (abfd) != 0) | |
1834 | { | |
1835 | Elf_Internal_Verdef *t; | |
1836 | ||
1837 | fprintf (f, _("\nVersion definitions:\n")); | |
1838 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1839 | { | |
1840 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1841 | t->vd_flags, t->vd_hash, |
1842 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1843 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1844 | { |
1845 | Elf_Internal_Verdaux *a; | |
1846 | ||
1847 | fprintf (f, "\t"); | |
1848 | for (a = t->vd_auxptr->vda_nextptr; | |
1849 | a != NULL; | |
1850 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1851 | fprintf (f, "%s ", |
1852 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1853 | fprintf (f, "\n"); |
1854 | } | |
1855 | } | |
1856 | } | |
1857 | ||
1858 | if (elf_dynverref (abfd) != 0) | |
1859 | { | |
1860 | Elf_Internal_Verneed *t; | |
1861 | ||
1862 | fprintf (f, _("\nVersion References:\n")); | |
1863 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1864 | { | |
1865 | Elf_Internal_Vernaux *a; | |
1866 | ||
d0fb9a8d JJ |
1867 | fprintf (f, _(" required from %s:\n"), |
1868 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1869 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1870 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1871 | a->vna_flags, a->vna_other, |
1872 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1873 | } |
1874 | } | |
1875 | ||
b34976b6 | 1876 | return TRUE; |
252b5132 RH |
1877 | |
1878 | error_return: | |
1879 | if (dynbuf != NULL) | |
1880 | free (dynbuf); | |
b34976b6 | 1881 | return FALSE; |
252b5132 RH |
1882 | } |
1883 | ||
bb4d2ac2 L |
1884 | /* Get version string. */ |
1885 | ||
1886 | const char * | |
60bb06bc L |
1887 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1888 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1889 | { |
1890 | const char *version_string = NULL; | |
1891 | if (elf_dynversym (abfd) != 0 | |
1892 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1893 | { | |
1894 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1895 | ||
1896 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1897 | vernum &= VERSYM_VERSION; | |
1898 | ||
1899 | if (vernum == 0) | |
1900 | version_string = ""; | |
1f6f5dba L |
1901 | else if (vernum == 1 |
1902 | && (vernum > elf_tdata (abfd)->cverdefs | |
1903 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1904 | == VER_FLG_BASE))) | |
bb4d2ac2 L |
1905 | version_string = "Base"; |
1906 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1907 | version_string = | |
1908 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1909 | else | |
1910 | { | |
1911 | Elf_Internal_Verneed *t; | |
1912 | ||
7a815dd5 | 1913 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1914 | for (t = elf_tdata (abfd)->verref; |
1915 | t != NULL; | |
1916 | t = t->vn_nextref) | |
1917 | { | |
1918 | Elf_Internal_Vernaux *a; | |
1919 | ||
1920 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1921 | { | |
1922 | if (a->vna_other == vernum) | |
1923 | { | |
1924 | version_string = a->vna_nodename; | |
1925 | break; | |
1926 | } | |
1927 | } | |
1928 | } | |
1929 | } | |
1930 | } | |
1931 | return version_string; | |
1932 | } | |
1933 | ||
252b5132 RH |
1934 | /* Display ELF-specific fields of a symbol. */ |
1935 | ||
1936 | void | |
217aa764 AM |
1937 | bfd_elf_print_symbol (bfd *abfd, |
1938 | void *filep, | |
1939 | asymbol *symbol, | |
1940 | bfd_print_symbol_type how) | |
252b5132 | 1941 | { |
a50b1753 | 1942 | FILE *file = (FILE *) filep; |
252b5132 RH |
1943 | switch (how) |
1944 | { | |
1945 | case bfd_print_symbol_name: | |
1946 | fprintf (file, "%s", symbol->name); | |
1947 | break; | |
1948 | case bfd_print_symbol_more: | |
1949 | fprintf (file, "elf "); | |
60b89a18 | 1950 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1951 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1952 | break; |
1953 | case bfd_print_symbol_all: | |
1954 | { | |
4e8a9624 AM |
1955 | const char *section_name; |
1956 | const char *name = NULL; | |
9c5bfbb7 | 1957 | const struct elf_backend_data *bed; |
7a13edea | 1958 | unsigned char st_other; |
dbb410c3 | 1959 | bfd_vma val; |
bb4d2ac2 L |
1960 | const char *version_string; |
1961 | bfd_boolean hidden; | |
c044fabd | 1962 | |
252b5132 | 1963 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1964 | |
1965 | bed = get_elf_backend_data (abfd); | |
1966 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1967 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1968 | |
1969 | if (name == NULL) | |
1970 | { | |
7ee38065 | 1971 | name = symbol->name; |
217aa764 | 1972 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1973 | } |
1974 | ||
252b5132 RH |
1975 | fprintf (file, " %s\t", section_name); |
1976 | /* Print the "other" value for a symbol. For common symbols, | |
1977 | we've already printed the size; now print the alignment. | |
1978 | For other symbols, we have no specified alignment, and | |
1979 | we've printed the address; now print the size. */ | |
dcf6c779 | 1980 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1981 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1982 | else | |
1983 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1984 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1985 | |
1986 | /* If we have version information, print it. */ | |
60bb06bc L |
1987 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
1988 | symbol, | |
1989 | &hidden); | |
bb4d2ac2 | 1990 | if (version_string) |
252b5132 | 1991 | { |
bb4d2ac2 | 1992 | if (!hidden) |
252b5132 RH |
1993 | fprintf (file, " %-11s", version_string); |
1994 | else | |
1995 | { | |
1996 | int i; | |
1997 | ||
1998 | fprintf (file, " (%s)", version_string); | |
1999 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2000 | putc (' ', file); | |
2001 | } | |
2002 | } | |
2003 | ||
2004 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2005 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2006 | |
7a13edea NC |
2007 | switch (st_other) |
2008 | { | |
2009 | case 0: break; | |
2010 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2011 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2012 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2013 | default: | |
2014 | /* Some other non-defined flags are also present, so print | |
2015 | everything hex. */ | |
2016 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2017 | } | |
252b5132 | 2018 | |
587ff49e | 2019 | fprintf (file, " %s", name); |
252b5132 RH |
2020 | } |
2021 | break; | |
2022 | } | |
2023 | } | |
252b5132 RH |
2024 | \f |
2025 | /* ELF .o/exec file reading */ | |
2026 | ||
c044fabd | 2027 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2028 | |
b34976b6 | 2029 | bfd_boolean |
217aa764 | 2030 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2031 | { |
4fbb74a6 AM |
2032 | Elf_Internal_Shdr *hdr; |
2033 | Elf_Internal_Ehdr *ehdr; | |
2034 | const struct elf_backend_data *bed; | |
90937f86 | 2035 | const char *name; |
bf67003b NC |
2036 | bfd_boolean ret = TRUE; |
2037 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2038 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2039 | static unsigned int nesting = 0; |
252b5132 | 2040 | |
4fbb74a6 AM |
2041 | if (shindex >= elf_numsections (abfd)) |
2042 | return FALSE; | |
2043 | ||
bf67003b NC |
2044 | if (++ nesting > 3) |
2045 | { | |
2046 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2047 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2048 | loop. Detect this here, by refusing to load a section that we are |
2049 | already in the process of loading. We only trigger this test if | |
2050 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2051 | can expect to recurse at least once. |
2052 | ||
2053 | FIXME: It would be better if this array was attached to the bfd, | |
2054 | rather than being held in a static pointer. */ | |
2055 | ||
2056 | if (sections_being_created_abfd != abfd) | |
2057 | sections_being_created = NULL; | |
bf67003b NC |
2058 | if (sections_being_created == NULL) |
2059 | { | |
446f7ed5 AM |
2060 | size_t amt = elf_numsections (abfd) * sizeof (bfd_boolean); |
2061 | sections_being_created = (bfd_boolean *) bfd_zalloc (abfd, amt); | |
96d3b80f AM |
2062 | if (sections_being_created == NULL) |
2063 | return FALSE; | |
5a4b0ccc | 2064 | sections_being_created_abfd = abfd; |
bf67003b NC |
2065 | } |
2066 | if (sections_being_created [shindex]) | |
2067 | { | |
4eca0228 | 2068 | _bfd_error_handler |
871b3ab2 | 2069 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2070 | return FALSE; |
2071 | } | |
2072 | sections_being_created [shindex] = TRUE; | |
2073 | } | |
2074 | ||
4fbb74a6 AM |
2075 | hdr = elf_elfsections (abfd)[shindex]; |
2076 | ehdr = elf_elfheader (abfd); | |
2077 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2078 | hdr->sh_name); |
933d961a | 2079 | if (name == NULL) |
bf67003b | 2080 | goto fail; |
252b5132 | 2081 | |
4fbb74a6 | 2082 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2083 | switch (hdr->sh_type) |
2084 | { | |
2085 | case SHT_NULL: | |
2086 | /* Inactive section. Throw it away. */ | |
bf67003b | 2087 | goto success; |
252b5132 | 2088 | |
bf67003b NC |
2089 | case SHT_PROGBITS: /* Normal section with contents. */ |
2090 | case SHT_NOBITS: /* .bss section. */ | |
2091 | case SHT_HASH: /* .hash section. */ | |
2092 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2093 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2094 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2095 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2096 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2097 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2098 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2099 | goto success; | |
252b5132 | 2100 | |
797fc050 | 2101 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2102 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2103 | goto fail; |
2104 | ||
cfcac11d NC |
2105 | if (hdr->sh_link > elf_numsections (abfd)) |
2106 | { | |
caa83f8b | 2107 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2108 | field set to SHN_BEFORE or SHN_AFTER. */ |
2109 | switch (bfd_get_arch (abfd)) | |
2110 | { | |
caa83f8b | 2111 | case bfd_arch_i386: |
cfcac11d NC |
2112 | case bfd_arch_sparc: |
2113 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2114 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2115 | break; | |
2116 | /* Otherwise fall through. */ | |
2117 | default: | |
bf67003b | 2118 | goto fail; |
cfcac11d NC |
2119 | } |
2120 | } | |
2121 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2122 | goto fail; |
cfcac11d | 2123 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2124 | { |
2125 | Elf_Internal_Shdr *dynsymhdr; | |
2126 | ||
2127 | /* The shared libraries distributed with hpux11 have a bogus | |
2128 | sh_link field for the ".dynamic" section. Find the | |
2129 | string table for the ".dynsym" section instead. */ | |
2130 | if (elf_dynsymtab (abfd) != 0) | |
2131 | { | |
2132 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2133 | hdr->sh_link = dynsymhdr->sh_link; | |
2134 | } | |
2135 | else | |
2136 | { | |
2137 | unsigned int i, num_sec; | |
2138 | ||
2139 | num_sec = elf_numsections (abfd); | |
2140 | for (i = 1; i < num_sec; i++) | |
2141 | { | |
2142 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2143 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2144 | { | |
2145 | hdr->sh_link = dynsymhdr->sh_link; | |
2146 | break; | |
2147 | } | |
2148 | } | |
2149 | } | |
2150 | } | |
bf67003b | 2151 | goto success; |
797fc050 | 2152 | |
bf67003b | 2153 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2154 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2155 | goto success; |
252b5132 | 2156 | |
a50b2160 | 2157 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2158 | goto fail; |
2159 | ||
3337c1e5 | 2160 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2161 | { |
2162 | if (hdr->sh_size != 0) | |
bf67003b | 2163 | goto fail; |
eee3b786 AM |
2164 | /* Some assemblers erroneously set sh_info to one with a |
2165 | zero sh_size. ld sees this as a global symbol count | |
2166 | of (unsigned) -1. Fix it here. */ | |
2167 | hdr->sh_info = 0; | |
bf67003b | 2168 | goto success; |
eee3b786 | 2169 | } |
bf67003b | 2170 | |
16ad13ec NC |
2171 | /* PR 18854: A binary might contain more than one symbol table. |
2172 | Unusual, but possible. Warn, but continue. */ | |
2173 | if (elf_onesymtab (abfd) != 0) | |
2174 | { | |
4eca0228 | 2175 | _bfd_error_handler |
695344c0 | 2176 | /* xgettext:c-format */ |
871b3ab2 | 2177 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2178 | " - ignoring the table in section %u"), |
16ad13ec NC |
2179 | abfd, shindex); |
2180 | goto success; | |
2181 | } | |
252b5132 | 2182 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2183 | elf_symtab_hdr (abfd) = *hdr; |
2184 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2185 | abfd->flags |= HAS_SYMS; |
2186 | ||
2187 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2188 | SHF_ALLOC is set, and this is a shared object, then we also |
2189 | treat this section as a BFD section. We can not base the | |
2190 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2191 | set in a relocatable object file, which would confuse the | |
2192 | linker. */ | |
252b5132 RH |
2193 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2194 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2195 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2196 | shindex)) | |
bf67003b | 2197 | goto fail; |
252b5132 | 2198 | |
1b3a8575 AM |
2199 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2200 | can't read symbols without that section loaded as well. It | |
2201 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2202 | { |
2203 | elf_section_list * entry; | |
2204 | unsigned int i, num_sec; | |
1b3a8575 | 2205 | |
6a40cf0c NC |
2206 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2207 | if (entry->hdr.sh_link == shindex) | |
2208 | goto success; | |
2209 | ||
2210 | num_sec = elf_numsections (abfd); | |
2211 | for (i = shindex + 1; i < num_sec; i++) | |
2212 | { | |
2213 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2214 | ||
2215 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2216 | && hdr2->sh_link == shindex) | |
2217 | break; | |
2218 | } | |
2219 | ||
2220 | if (i == num_sec) | |
2221 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2222 | { |
2223 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2224 | |
1b3a8575 AM |
2225 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2226 | && hdr2->sh_link == shindex) | |
2227 | break; | |
2228 | } | |
6a40cf0c NC |
2229 | |
2230 | if (i != shindex) | |
2231 | ret = bfd_section_from_shdr (abfd, i); | |
2232 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2233 | goto success; | |
2234 | } | |
252b5132 | 2235 | |
bf67003b | 2236 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2237 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2238 | goto success; |
252b5132 | 2239 | |
a50b2160 | 2240 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2241 | goto fail; |
2242 | ||
eee3b786 AM |
2243 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2244 | { | |
2245 | if (hdr->sh_size != 0) | |
bf67003b NC |
2246 | goto fail; |
2247 | ||
eee3b786 AM |
2248 | /* Some linkers erroneously set sh_info to one with a |
2249 | zero sh_size. ld sees this as a global symbol count | |
2250 | of (unsigned) -1. Fix it here. */ | |
2251 | hdr->sh_info = 0; | |
bf67003b | 2252 | goto success; |
eee3b786 | 2253 | } |
bf67003b | 2254 | |
16ad13ec NC |
2255 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2256 | Unusual, but possible. Warn, but continue. */ | |
2257 | if (elf_dynsymtab (abfd) != 0) | |
2258 | { | |
4eca0228 | 2259 | _bfd_error_handler |
695344c0 | 2260 | /* xgettext:c-format */ |
871b3ab2 | 2261 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2262 | " - ignoring the table in section %u"), |
16ad13ec NC |
2263 | abfd, shindex); |
2264 | goto success; | |
2265 | } | |
252b5132 RH |
2266 | elf_dynsymtab (abfd) = shindex; |
2267 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2268 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2269 | abfd->flags |= HAS_SYMS; | |
2270 | ||
2271 | /* Besides being a symbol table, we also treat this as a regular | |
2272 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2273 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2274 | goto success; | |
252b5132 | 2275 | |
bf67003b | 2276 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2277 | { |
2278 | elf_section_list * entry; | |
9ad5cbcf | 2279 | |
6a40cf0c NC |
2280 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2281 | if (entry->ndx == shindex) | |
2282 | goto success; | |
07d6d2b8 | 2283 | |
7a6e0d89 | 2284 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2285 | if (entry == NULL) |
2286 | goto fail; | |
2287 | entry->ndx = shindex; | |
2288 | entry->hdr = * hdr; | |
2289 | entry->next = elf_symtab_shndx_list (abfd); | |
2290 | elf_symtab_shndx_list (abfd) = entry; | |
2291 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2292 | goto success; | |
2293 | } | |
9ad5cbcf | 2294 | |
bf67003b | 2295 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2296 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2297 | goto success; |
2298 | ||
252b5132 RH |
2299 | if (ehdr->e_shstrndx == shindex) |
2300 | { | |
2301 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2302 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2303 | goto success; |
252b5132 | 2304 | } |
bf67003b | 2305 | |
1b3a8575 AM |
2306 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2307 | { | |
2308 | symtab_strtab: | |
2309 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2310 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2311 | goto success; |
1b3a8575 | 2312 | } |
bf67003b | 2313 | |
1b3a8575 AM |
2314 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2315 | { | |
2316 | dynsymtab_strtab: | |
2317 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2318 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2319 | elf_elfsections (abfd)[shindex] = hdr; | |
2320 | /* We also treat this as a regular section, so that objcopy | |
2321 | can handle it. */ | |
bf67003b NC |
2322 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2323 | shindex); | |
2324 | goto success; | |
1b3a8575 | 2325 | } |
252b5132 | 2326 | |
1b3a8575 AM |
2327 | /* If the string table isn't one of the above, then treat it as a |
2328 | regular section. We need to scan all the headers to be sure, | |
2329 | just in case this strtab section appeared before the above. */ | |
2330 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2331 | { | |
2332 | unsigned int i, num_sec; | |
252b5132 | 2333 | |
1b3a8575 AM |
2334 | num_sec = elf_numsections (abfd); |
2335 | for (i = 1; i < num_sec; i++) | |
2336 | { | |
2337 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2338 | if (hdr2->sh_link == shindex) | |
2339 | { | |
933d961a JJ |
2340 | /* Prevent endless recursion on broken objects. */ |
2341 | if (i == shindex) | |
bf67003b | 2342 | goto fail; |
1b3a8575 | 2343 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2344 | goto fail; |
1b3a8575 AM |
2345 | if (elf_onesymtab (abfd) == i) |
2346 | goto symtab_strtab; | |
2347 | if (elf_dynsymtab (abfd) == i) | |
2348 | goto dynsymtab_strtab; | |
2349 | } | |
2350 | } | |
2351 | } | |
bf67003b NC |
2352 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2353 | goto success; | |
252b5132 RH |
2354 | |
2355 | case SHT_REL: | |
2356 | case SHT_RELA: | |
2357 | /* *These* do a lot of work -- but build no sections! */ | |
2358 | { | |
2359 | asection *target_sect; | |
d4730f92 | 2360 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2361 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2362 | struct bfd_elf_section_data *esdt; |
252b5132 | 2363 | |
aa2ca951 JJ |
2364 | if (hdr->sh_entsize |
2365 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2366 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2367 | goto fail; |
a50b2160 | 2368 | |
03ae5f59 | 2369 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2370 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2371 | { |
4eca0228 | 2372 | _bfd_error_handler |
695344c0 | 2373 | /* xgettext:c-format */ |
871b3ab2 | 2374 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2375 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2376 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2377 | shindex); | |
2378 | goto success; | |
03ae5f59 ILT |
2379 | } |
2380 | ||
252b5132 RH |
2381 | /* For some incomprehensible reason Oracle distributes |
2382 | libraries for Solaris in which some of the objects have | |
2383 | bogus sh_link fields. It would be nice if we could just | |
2384 | reject them, but, unfortunately, some people need to use | |
2385 | them. We scan through the section headers; if we find only | |
2386 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2387 | to it. I hope this doesn't break anything. |
2388 | ||
2389 | Don't do it on executable nor shared library. */ | |
2390 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2391 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2392 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2393 | { | |
9ad5cbcf | 2394 | unsigned int scan; |
252b5132 RH |
2395 | int found; |
2396 | ||
2397 | found = 0; | |
9ad5cbcf | 2398 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2399 | { |
2400 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2401 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2402 | { | |
2403 | if (found != 0) | |
2404 | { | |
2405 | found = 0; | |
2406 | break; | |
2407 | } | |
2408 | found = scan; | |
2409 | } | |
2410 | } | |
2411 | if (found != 0) | |
2412 | hdr->sh_link = found; | |
2413 | } | |
2414 | ||
2415 | /* Get the symbol table. */ | |
1b3a8575 AM |
2416 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2417 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2418 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2419 | goto fail; |
252b5132 | 2420 | |
a4bcd733 AM |
2421 | /* If this is an alloc section in an executable or shared |
2422 | library, or the reloc section does not use the main symbol | |
2423 | table we don't treat it as a reloc section. BFD can't | |
2424 | adequately represent such a section, so at least for now, | |
2425 | we don't try. We just present it as a normal section. We | |
2426 | also can't use it as a reloc section if it points to the | |
2427 | null section, an invalid section, another reloc section, or | |
2428 | its sh_link points to the null section. */ | |
2429 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2430 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2431 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2432 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2433 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2434 | || hdr->sh_info >= num_sec |
2435 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2436 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2437 | { |
2438 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2439 | shindex); | |
2440 | goto success; | |
2441 | } | |
252b5132 RH |
2442 | |
2443 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2444 | goto fail; |
2445 | ||
252b5132 RH |
2446 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2447 | if (target_sect == NULL) | |
bf67003b | 2448 | goto fail; |
252b5132 | 2449 | |
d4730f92 BS |
2450 | esdt = elf_section_data (target_sect); |
2451 | if (hdr->sh_type == SHT_RELA) | |
2452 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2453 | else |
d4730f92 BS |
2454 | p_hdr = &esdt->rel.hdr; |
2455 | ||
a7ba3896 NC |
2456 | /* PR 17512: file: 0b4f81b7. |
2457 | Also see PR 24456, for a file which deliberately has two reloc | |
2458 | sections. */ | |
06614111 | 2459 | if (*p_hdr != NULL) |
a7ba3896 NC |
2460 | { |
2461 | _bfd_error_handler | |
2462 | /* xgettext:c-format */ | |
2463 | (_("%pB: warning: multiple relocation sections for section %pA \ | |
2464 | found - ignoring all but the first"), | |
2465 | abfd, target_sect); | |
2466 | goto success; | |
2467 | } | |
ef53be89 | 2468 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2469 | if (hdr2 == NULL) |
bf67003b | 2470 | goto fail; |
252b5132 | 2471 | *hdr2 = *hdr; |
d4730f92 | 2472 | *p_hdr = hdr2; |
252b5132 | 2473 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2474 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2475 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2476 | target_sect->flags |= SEC_RELOC; |
2477 | target_sect->relocation = NULL; | |
2478 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2479 | /* In the section to which the relocations apply, mark whether |
2480 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2481 | if (hdr->sh_size != 0) |
d4730f92 BS |
2482 | { |
2483 | if (hdr->sh_type == SHT_RELA) | |
2484 | target_sect->use_rela_p = 1; | |
2485 | } | |
252b5132 | 2486 | abfd->flags |= HAS_RELOC; |
bf67003b | 2487 | goto success; |
252b5132 | 2488 | } |
252b5132 RH |
2489 | |
2490 | case SHT_GNU_verdef: | |
2491 | elf_dynverdef (abfd) = shindex; | |
2492 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2493 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2494 | goto success; | |
252b5132 RH |
2495 | |
2496 | case SHT_GNU_versym: | |
a50b2160 | 2497 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2498 | goto fail; |
2499 | ||
252b5132 RH |
2500 | elf_dynversym (abfd) = shindex; |
2501 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2502 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2503 | goto success; | |
252b5132 RH |
2504 | |
2505 | case SHT_GNU_verneed: | |
2506 | elf_dynverref (abfd) = shindex; | |
2507 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2508 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2509 | goto success; | |
252b5132 RH |
2510 | |
2511 | case SHT_SHLIB: | |
bf67003b | 2512 | goto success; |
252b5132 | 2513 | |
dbb410c3 | 2514 | case SHT_GROUP: |
44534af3 | 2515 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2516 | goto fail; |
2517 | ||
6dc132d9 | 2518 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2519 | goto fail; |
2520 | ||
bf67003b | 2521 | goto success; |
dbb410c3 | 2522 | |
252b5132 | 2523 | default: |
104d59d1 JM |
2524 | /* Possibly an attributes section. */ |
2525 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2526 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2527 | { | |
2528 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2529 | goto fail; |
104d59d1 | 2530 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2531 | goto success; |
104d59d1 JM |
2532 | } |
2533 | ||
252b5132 | 2534 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2535 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2536 | goto success; |
3eb70a79 L |
2537 | |
2538 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2539 | { | |
2540 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2541 | /* FIXME: How to properly handle allocated section reserved | |
2542 | for applications? */ | |
4eca0228 | 2543 | _bfd_error_handler |
695344c0 | 2544 | /* xgettext:c-format */ |
871b3ab2 | 2545 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2546 | abfd, hdr->sh_type, name); |
3eb70a79 | 2547 | else |
bf67003b NC |
2548 | { |
2549 | /* Allow sections reserved for applications. */ | |
2550 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2551 | shindex); | |
2552 | goto success; | |
2553 | } | |
3eb70a79 L |
2554 | } |
2555 | else if (hdr->sh_type >= SHT_LOPROC | |
2556 | && hdr->sh_type <= SHT_HIPROC) | |
2557 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2558 | _bfd_error_handler |
695344c0 | 2559 | /* xgettext:c-format */ |
871b3ab2 | 2560 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2561 | abfd, hdr->sh_type, name); |
3eb70a79 | 2562 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2563 | { |
2564 | /* Unrecognised OS-specific sections. */ | |
2565 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2566 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2567 | required to correctly process the section and the file should |
ff15b240 | 2568 | be rejected with an error message. */ |
4eca0228 | 2569 | _bfd_error_handler |
695344c0 | 2570 | /* xgettext:c-format */ |
871b3ab2 | 2571 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2572 | abfd, hdr->sh_type, name); |
ff15b240 | 2573 | else |
bf67003b NC |
2574 | { |
2575 | /* Otherwise it should be processed. */ | |
2576 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2577 | goto success; | |
2578 | } | |
ff15b240 | 2579 | } |
3eb70a79 L |
2580 | else |
2581 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2582 | _bfd_error_handler |
695344c0 | 2583 | /* xgettext:c-format */ |
871b3ab2 | 2584 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2585 | abfd, hdr->sh_type, name); |
3eb70a79 | 2586 | |
bf67003b | 2587 | goto fail; |
252b5132 RH |
2588 | } |
2589 | ||
bf67003b NC |
2590 | fail: |
2591 | ret = FALSE; | |
2592 | success: | |
e5b470e2 | 2593 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2594 | sections_being_created [shindex] = FALSE; |
2595 | if (-- nesting == 0) | |
5a4b0ccc NC |
2596 | { |
2597 | sections_being_created = NULL; | |
2598 | sections_being_created_abfd = abfd; | |
2599 | } | |
bf67003b | 2600 | return ret; |
252b5132 RH |
2601 | } |
2602 | ||
87d72d41 | 2603 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2604 | |
87d72d41 AM |
2605 | Elf_Internal_Sym * |
2606 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2607 | bfd *abfd, | |
2608 | unsigned long r_symndx) | |
ec338859 | 2609 | { |
ec338859 AM |
2610 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2611 | ||
a5d1b3b5 AM |
2612 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2613 | { | |
2614 | Elf_Internal_Shdr *symtab_hdr; | |
2615 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2616 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2617 | |
a5d1b3b5 AM |
2618 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2619 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2620 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2621 | return NULL; |
9ad5cbcf | 2622 | |
a5d1b3b5 AM |
2623 | if (cache->abfd != abfd) |
2624 | { | |
2625 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2626 | cache->abfd = abfd; | |
2627 | } | |
2628 | cache->indx[ent] = r_symndx; | |
ec338859 | 2629 | } |
a5d1b3b5 | 2630 | |
87d72d41 | 2631 | return &cache->sym[ent]; |
ec338859 AM |
2632 | } |
2633 | ||
252b5132 RH |
2634 | /* Given an ELF section number, retrieve the corresponding BFD |
2635 | section. */ | |
2636 | ||
2637 | asection * | |
91d6fa6a | 2638 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2639 | { |
91d6fa6a | 2640 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2641 | return NULL; |
91d6fa6a | 2642 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2643 | } |
2644 | ||
b35d266b | 2645 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2646 | { |
0112cd26 | 2647 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2648 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2649 | }; |
2650 | ||
b35d266b | 2651 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2652 | { |
0112cd26 | 2653 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2654 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2655 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2656 | }; |
2657 | ||
b35d266b | 2658 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2659 | { |
07d6d2b8 AM |
2660 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2661 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2662 | /* There are more DWARF sections than these, but they needn't be added here |
2663 | unless you have to cope with broken compilers that don't emit section | |
2664 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2665 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2666 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2667 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2668 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2669 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2670 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2671 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2672 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2673 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2674 | }; |
2675 | ||
b35d266b | 2676 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2677 | { |
07d6d2b8 | 2678 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2679 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2680 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2681 | }; |
2682 | ||
b35d266b | 2683 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2684 | { |
0112cd26 | 2685 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2686 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2687 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2688 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2689 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2690 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2691 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2692 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2693 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2694 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2695 | }; |
2696 | ||
b35d266b | 2697 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2698 | { |
07d6d2b8 AM |
2699 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2700 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2701 | }; |
2702 | ||
b35d266b | 2703 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2704 | { |
07d6d2b8 | 2705 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2706 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2707 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2708 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2709 | }; |
2710 | ||
b35d266b | 2711 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2712 | { |
0112cd26 | 2713 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2714 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2715 | }; |
2716 | ||
b35d266b | 2717 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2718 | { |
0112cd26 | 2719 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2720 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2721 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2722 | }; |
2723 | ||
b35d266b | 2724 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2725 | { |
6f9dbcd4 | 2726 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2727 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2728 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2729 | }; |
2730 | ||
b35d266b | 2731 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2732 | { |
0112cd26 NC |
2733 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2734 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2735 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2736 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2737 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2738 | }; |
2739 | ||
b35d266b | 2740 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2741 | { |
0112cd26 NC |
2742 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2743 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2744 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2745 | /* See struct bfd_elf_special_section declaration for the semantics of |
2746 | this special case where .prefix_length != strlen (.prefix). */ | |
2747 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2748 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2749 | }; |
2750 | ||
b35d266b | 2751 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2752 | { |
07d6d2b8 AM |
2753 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2754 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2755 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2756 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2757 | }; |
2758 | ||
1b315056 CS |
2759 | static const struct bfd_elf_special_section special_sections_z[] = |
2760 | { | |
07d6d2b8 AM |
2761 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2762 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2763 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2764 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2765 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2766 | }; |
2767 | ||
e4c93b56 | 2768 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2769 | { |
7f4d3958 | 2770 | special_sections_b, /* 'b' */ |
98ece1b3 | 2771 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2772 | special_sections_d, /* 'd' */ |
2773 | NULL, /* 'e' */ | |
2774 | special_sections_f, /* 'f' */ | |
2775 | special_sections_g, /* 'g' */ | |
2776 | special_sections_h, /* 'h' */ | |
2777 | special_sections_i, /* 'i' */ | |
2778 | NULL, /* 'j' */ | |
2779 | NULL, /* 'k' */ | |
2780 | special_sections_l, /* 'l' */ | |
2781 | NULL, /* 'm' */ | |
2782 | special_sections_n, /* 'n' */ | |
2783 | NULL, /* 'o' */ | |
2784 | special_sections_p, /* 'p' */ | |
2785 | NULL, /* 'q' */ | |
2786 | special_sections_r, /* 'r' */ | |
2787 | special_sections_s, /* 's' */ | |
2788 | special_sections_t, /* 't' */ | |
1b315056 CS |
2789 | NULL, /* 'u' */ |
2790 | NULL, /* 'v' */ | |
2791 | NULL, /* 'w' */ | |
2792 | NULL, /* 'x' */ | |
2793 | NULL, /* 'y' */ | |
2794 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2795 | }; |
2796 | ||
551b43fd AM |
2797 | const struct bfd_elf_special_section * |
2798 | _bfd_elf_get_special_section (const char *name, | |
2799 | const struct bfd_elf_special_section *spec, | |
2800 | unsigned int rela) | |
2f89ff8d L |
2801 | { |
2802 | int i; | |
7f4d3958 | 2803 | int len; |
7f4d3958 | 2804 | |
551b43fd | 2805 | len = strlen (name); |
7f4d3958 | 2806 | |
551b43fd | 2807 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2808 | { |
2809 | int suffix_len; | |
551b43fd | 2810 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2811 | |
2812 | if (len < prefix_len) | |
2813 | continue; | |
551b43fd | 2814 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2815 | continue; |
2816 | ||
551b43fd | 2817 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2818 | if (suffix_len <= 0) |
2819 | { | |
2820 | if (name[prefix_len] != 0) | |
2821 | { | |
2822 | if (suffix_len == 0) | |
2823 | continue; | |
2824 | if (name[prefix_len] != '.' | |
2825 | && (suffix_len == -2 | |
551b43fd | 2826 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2827 | continue; |
2828 | } | |
2829 | } | |
2830 | else | |
2831 | { | |
2832 | if (len < prefix_len + suffix_len) | |
2833 | continue; | |
2834 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2835 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2836 | suffix_len) != 0) |
2837 | continue; | |
2838 | } | |
551b43fd | 2839 | return &spec[i]; |
7dcb9820 | 2840 | } |
2f89ff8d L |
2841 | |
2842 | return NULL; | |
2843 | } | |
2844 | ||
7dcb9820 | 2845 | const struct bfd_elf_special_section * |
29ef7005 | 2846 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2847 | { |
551b43fd AM |
2848 | int i; |
2849 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2850 | const struct elf_backend_data *bed; |
2f89ff8d L |
2851 | |
2852 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2853 | if (sec->name == NULL) |
2854 | return NULL; | |
2f89ff8d | 2855 | |
29ef7005 L |
2856 | bed = get_elf_backend_data (abfd); |
2857 | spec = bed->special_sections; | |
2858 | if (spec) | |
2859 | { | |
2860 | spec = _bfd_elf_get_special_section (sec->name, | |
2861 | bed->special_sections, | |
2862 | sec->use_rela_p); | |
2863 | if (spec != NULL) | |
2864 | return spec; | |
2865 | } | |
2866 | ||
551b43fd AM |
2867 | if (sec->name[0] != '.') |
2868 | return NULL; | |
2f89ff8d | 2869 | |
551b43fd | 2870 | i = sec->name[1] - 'b'; |
1b315056 | 2871 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2872 | return NULL; |
2873 | ||
2874 | spec = special_sections[i]; | |
2f89ff8d | 2875 | |
551b43fd AM |
2876 | if (spec == NULL) |
2877 | return NULL; | |
2878 | ||
2879 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2880 | } |
2881 | ||
b34976b6 | 2882 | bfd_boolean |
217aa764 | 2883 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2884 | { |
2885 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2886 | const struct elf_backend_data *bed; |
7dcb9820 | 2887 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2888 | |
f0abc2a1 AM |
2889 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2890 | if (sdata == NULL) | |
2891 | { | |
a50b1753 | 2892 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2893 | sizeof (*sdata)); |
f0abc2a1 AM |
2894 | if (sdata == NULL) |
2895 | return FALSE; | |
217aa764 | 2896 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2897 | } |
bf572ba0 | 2898 | |
551b43fd AM |
2899 | /* Indicate whether or not this section should use RELA relocations. */ |
2900 | bed = get_elf_backend_data (abfd); | |
2901 | sec->use_rela_p = bed->default_use_rela_p; | |
2902 | ||
8c803a2d AM |
2903 | /* Set up ELF section type and flags for newly created sections, if |
2904 | there is an ABI mandated section. */ | |
2905 | ssect = (*bed->get_sec_type_attr) (abfd, sec); | |
2906 | if (ssect != NULL) | |
2f89ff8d | 2907 | { |
8c803a2d AM |
2908 | elf_section_type (sec) = ssect->type; |
2909 | elf_section_flags (sec) = ssect->attr; | |
2f89ff8d L |
2910 | } |
2911 | ||
f592407e | 2912 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2913 | } |
2914 | ||
2915 | /* Create a new bfd section from an ELF program header. | |
2916 | ||
2917 | Since program segments have no names, we generate a synthetic name | |
2918 | of the form segment<NUM>, where NUM is generally the index in the | |
2919 | program header table. For segments that are split (see below) we | |
2920 | generate the names segment<NUM>a and segment<NUM>b. | |
2921 | ||
2922 | Note that some program segments may have a file size that is different than | |
2923 | (less than) the memory size. All this means is that at execution the | |
2924 | system must allocate the amount of memory specified by the memory size, | |
2925 | but only initialize it with the first "file size" bytes read from the | |
2926 | file. This would occur for example, with program segments consisting | |
2927 | of combined data+bss. | |
2928 | ||
2929 | To handle the above situation, this routine generates TWO bfd sections | |
2930 | for the single program segment. The first has the length specified by | |
2931 | the file size of the segment, and the second has the length specified | |
2932 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2933 | into its initialized and uninitialized parts. |
252b5132 RH |
2934 | |
2935 | */ | |
2936 | ||
b34976b6 | 2937 | bfd_boolean |
217aa764 AM |
2938 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2939 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2940 | int hdr_index, |
a50b1753 | 2941 | const char *type_name) |
252b5132 RH |
2942 | { |
2943 | asection *newsect; | |
2944 | char *name; | |
2945 | char namebuf[64]; | |
d4c88bbb | 2946 | size_t len; |
252b5132 RH |
2947 | int split; |
2948 | ||
2949 | split = ((hdr->p_memsz > 0) | |
2950 | && (hdr->p_filesz > 0) | |
2951 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2952 | |
2953 | if (hdr->p_filesz > 0) | |
252b5132 | 2954 | { |
91d6fa6a | 2955 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2956 | len = strlen (namebuf) + 1; |
a50b1753 | 2957 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2958 | if (!name) |
2959 | return FALSE; | |
2960 | memcpy (name, namebuf, len); | |
2961 | newsect = bfd_make_section (abfd, name); | |
2962 | if (newsect == NULL) | |
2963 | return FALSE; | |
2964 | newsect->vma = hdr->p_vaddr; | |
2965 | newsect->lma = hdr->p_paddr; | |
2966 | newsect->size = hdr->p_filesz; | |
2967 | newsect->filepos = hdr->p_offset; | |
2968 | newsect->flags |= SEC_HAS_CONTENTS; | |
2969 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2970 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2971 | { |
d5191d0c AM |
2972 | newsect->flags |= SEC_ALLOC; |
2973 | newsect->flags |= SEC_LOAD; | |
2974 | if (hdr->p_flags & PF_X) | |
2975 | { | |
2976 | /* FIXME: all we known is that it has execute PERMISSION, | |
2977 | may be data. */ | |
2978 | newsect->flags |= SEC_CODE; | |
2979 | } | |
2980 | } | |
2981 | if (!(hdr->p_flags & PF_W)) | |
2982 | { | |
2983 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2984 | } |
252b5132 RH |
2985 | } |
2986 | ||
d5191d0c | 2987 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2988 | { |
d5191d0c AM |
2989 | bfd_vma align; |
2990 | ||
91d6fa6a | 2991 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2992 | len = strlen (namebuf) + 1; |
a50b1753 | 2993 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2994 | if (!name) |
b34976b6 | 2995 | return FALSE; |
d4c88bbb | 2996 | memcpy (name, namebuf, len); |
252b5132 RH |
2997 | newsect = bfd_make_section (abfd, name); |
2998 | if (newsect == NULL) | |
b34976b6 | 2999 | return FALSE; |
252b5132 RH |
3000 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
3001 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 3002 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3003 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3004 | align = newsect->vma & -newsect->vma; | |
3005 | if (align == 0 || align > hdr->p_align) | |
3006 | align = hdr->p_align; | |
3007 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3008 | if (hdr->p_type == PT_LOAD) |
3009 | { | |
d5191d0c AM |
3010 | /* Hack for gdb. Segments that have not been modified do |
3011 | not have their contents written to a core file, on the | |
3012 | assumption that a debugger can find the contents in the | |
3013 | executable. We flag this case by setting the fake | |
3014 | section size to zero. Note that "real" bss sections will | |
3015 | always have their contents dumped to the core file. */ | |
3016 | if (bfd_get_format (abfd) == bfd_core) | |
3017 | newsect->size = 0; | |
252b5132 RH |
3018 | newsect->flags |= SEC_ALLOC; |
3019 | if (hdr->p_flags & PF_X) | |
3020 | newsect->flags |= SEC_CODE; | |
3021 | } | |
3022 | if (!(hdr->p_flags & PF_W)) | |
3023 | newsect->flags |= SEC_READONLY; | |
3024 | } | |
3025 | ||
b34976b6 | 3026 | return TRUE; |
252b5132 RH |
3027 | } |
3028 | ||
864619bb KS |
3029 | static bfd_boolean |
3030 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) | |
3031 | { | |
3032 | /* The return value is ignored. Build-ids are considered optional. */ | |
3033 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3034 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3035 | (templ, offset); | |
3036 | return FALSE; | |
3037 | } | |
3038 | ||
b34976b6 | 3039 | bfd_boolean |
91d6fa6a | 3040 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3041 | { |
9c5bfbb7 | 3042 | const struct elf_backend_data *bed; |
20cfcaae NC |
3043 | |
3044 | switch (hdr->p_type) | |
3045 | { | |
3046 | case PT_NULL: | |
91d6fa6a | 3047 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3048 | |
3049 | case PT_LOAD: | |
864619bb KS |
3050 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
3051 | return FALSE; | |
3052 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) | |
3053 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
3054 | return TRUE; | |
20cfcaae NC |
3055 | |
3056 | case PT_DYNAMIC: | |
91d6fa6a | 3057 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3058 | |
3059 | case PT_INTERP: | |
91d6fa6a | 3060 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3061 | |
3062 | case PT_NOTE: | |
91d6fa6a | 3063 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3064 | return FALSE; |
276da9b3 L |
3065 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3066 | hdr->p_align)) | |
b34976b6 AM |
3067 | return FALSE; |
3068 | return TRUE; | |
20cfcaae NC |
3069 | |
3070 | case PT_SHLIB: | |
91d6fa6a | 3071 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3072 | |
3073 | case PT_PHDR: | |
91d6fa6a | 3074 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3075 | |
811072d8 | 3076 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3077 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3078 | "eh_frame_hdr"); |
3079 | ||
2b05f1b7 | 3080 | case PT_GNU_STACK: |
91d6fa6a | 3081 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3082 | |
8c37241b | 3083 | case PT_GNU_RELRO: |
91d6fa6a | 3084 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3085 | |
20cfcaae | 3086 | default: |
8c1acd09 | 3087 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3088 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3089 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3090 | } |
3091 | } | |
3092 | ||
d4730f92 BS |
3093 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3094 | REL or RELA. */ | |
3095 | ||
3096 | Elf_Internal_Shdr * | |
3097 | _bfd_elf_single_rel_hdr (asection *sec) | |
3098 | { | |
3099 | if (elf_section_data (sec)->rel.hdr) | |
3100 | { | |
3101 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3102 | return elf_section_data (sec)->rel.hdr; | |
3103 | } | |
3104 | else | |
3105 | return elf_section_data (sec)->rela.hdr; | |
3106 | } | |
3107 | ||
3e19fb8f L |
3108 | static bfd_boolean |
3109 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3110 | Elf_Internal_Shdr *rel_hdr, | |
3111 | const char *sec_name, | |
3112 | bfd_boolean use_rela_p) | |
3113 | { | |
3114 | char *name = (char *) bfd_alloc (abfd, | |
3115 | sizeof ".rela" + strlen (sec_name)); | |
3116 | if (name == NULL) | |
3117 | return FALSE; | |
3118 | ||
3119 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3120 | rel_hdr->sh_name = | |
3121 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3122 | FALSE); | |
3123 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3124 | return FALSE; | |
3125 | ||
3126 | return TRUE; | |
3127 | } | |
3128 | ||
d4730f92 BS |
3129 | /* Allocate and initialize a section-header for a new reloc section, |
3130 | containing relocations against ASECT. It is stored in RELDATA. If | |
3131 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3132 | relocations. */ | |
23bc299b | 3133 | |
5d13b3b3 | 3134 | static bfd_boolean |
217aa764 | 3135 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3136 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3137 | const char *sec_name, |
3e19fb8f L |
3138 | bfd_boolean use_rela_p, |
3139 | bfd_boolean delay_st_name_p) | |
23bc299b | 3140 | { |
d4730f92 | 3141 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3142 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3143 | |
d4730f92 | 3144 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3145 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3146 | reldata->hdr = rel_hdr; |
23bc299b | 3147 | |
3e19fb8f L |
3148 | if (delay_st_name_p) |
3149 | rel_hdr->sh_name = (unsigned int) -1; | |
3150 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3151 | use_rela_p)) | |
b34976b6 | 3152 | return FALSE; |
23bc299b MM |
3153 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3154 | rel_hdr->sh_entsize = (use_rela_p | |
3155 | ? bed->s->sizeof_rela | |
3156 | : bed->s->sizeof_rel); | |
72de5009 | 3157 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3158 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3159 | rel_hdr->sh_addr = 0; |
3160 | rel_hdr->sh_size = 0; | |
3161 | rel_hdr->sh_offset = 0; | |
3162 | ||
b34976b6 | 3163 | return TRUE; |
23bc299b MM |
3164 | } |
3165 | ||
94be91de JB |
3166 | /* Return the default section type based on the passed in section flags. */ |
3167 | ||
3168 | int | |
3169 | bfd_elf_get_default_section_type (flagword flags) | |
3170 | { | |
0e41bebb | 3171 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3172 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3173 | return SHT_NOBITS; |
3174 | return SHT_PROGBITS; | |
3175 | } | |
3176 | ||
d4730f92 BS |
3177 | struct fake_section_arg |
3178 | { | |
3179 | struct bfd_link_info *link_info; | |
3180 | bfd_boolean failed; | |
3181 | }; | |
3182 | ||
252b5132 RH |
3183 | /* Set up an ELF internal section header for a section. */ |
3184 | ||
252b5132 | 3185 | static void |
d4730f92 | 3186 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3187 | { |
d4730f92 | 3188 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3189 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3190 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3191 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3192 | unsigned int sh_type; |
0ce398f1 | 3193 | const char *name = asect->name; |
3e19fb8f | 3194 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3195 | |
d4730f92 | 3196 | if (arg->failed) |
252b5132 RH |
3197 | { |
3198 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3199 | loop. */ |
252b5132 RH |
3200 | return; |
3201 | } | |
3202 | ||
d4730f92 | 3203 | this_hdr = &esd->this_hdr; |
252b5132 | 3204 | |
f6fe1ccd | 3205 | if (arg->link_info) |
0ce398f1 | 3206 | { |
f6fe1ccd L |
3207 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3208 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3209 | && (asect->flags & SEC_DEBUGGING) | |
3210 | && name[1] == 'd' | |
3211 | && name[6] == '_') | |
3212 | { | |
3213 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3214 | compressed. */ | |
3215 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3216 | |
dd905818 | 3217 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3218 | name to section name section after it is compressed in |
3219 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3220 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3221 | } |
3222 | } | |
3223 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3224 | { | |
3225 | /* objcopy: rename output DWARF debug section. */ | |
3226 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3227 | { | |
3228 | /* When we decompress or compress with SHF_COMPRESSED, | |
3229 | convert section name from .zdebug_* to .debug_* if | |
3230 | needed. */ | |
3231 | if (name[1] == 'z') | |
3232 | { | |
3233 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3234 | if (new_name == NULL) | |
3235 | { | |
3236 | arg->failed = TRUE; | |
3237 | return; | |
3238 | } | |
3239 | name = new_name; | |
3240 | } | |
3241 | } | |
3242 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3243 | { |
f6fe1ccd L |
3244 | /* PR binutils/18087: Compression does not always make a |
3245 | section smaller. So only rename the section when | |
3246 | compression has actually taken place. If input section | |
3247 | name is .zdebug_*, we should never compress it again. */ | |
3248 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3249 | if (new_name == NULL) |
3250 | { | |
3251 | arg->failed = TRUE; | |
3252 | return; | |
3253 | } | |
f6fe1ccd L |
3254 | BFD_ASSERT (name[1] != 'z'); |
3255 | name = new_name; | |
0ce398f1 L |
3256 | } |
3257 | } | |
3258 | ||
3e19fb8f L |
3259 | if (delay_st_name_p) |
3260 | this_hdr->sh_name = (unsigned int) -1; | |
3261 | else | |
252b5132 | 3262 | { |
3e19fb8f L |
3263 | this_hdr->sh_name |
3264 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3265 | name, FALSE); | |
3266 | if (this_hdr->sh_name == (unsigned int) -1) | |
3267 | { | |
3268 | arg->failed = TRUE; | |
3269 | return; | |
3270 | } | |
252b5132 RH |
3271 | } |
3272 | ||
a4d8e49b | 3273 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3274 | |
3275 | if ((asect->flags & SEC_ALLOC) != 0 | |
3276 | || asect->user_set_vma) | |
3277 | this_hdr->sh_addr = asect->vma; | |
3278 | else | |
3279 | this_hdr->sh_addr = 0; | |
3280 | ||
3281 | this_hdr->sh_offset = 0; | |
eea6121a | 3282 | this_hdr->sh_size = asect->size; |
252b5132 | 3283 | this_hdr->sh_link = 0; |
c86934ce NC |
3284 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3285 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3286 | { | |
4eca0228 | 3287 | _bfd_error_handler |
695344c0 | 3288 | /* xgettext:c-format */ |
9793eb77 | 3289 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3290 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3291 | arg->failed = TRUE; |
3292 | return; | |
3293 | } | |
72de5009 | 3294 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3295 | /* The sh_entsize and sh_info fields may have been set already by |
3296 | copy_private_section_data. */ | |
3297 | ||
3298 | this_hdr->bfd_section = asect; | |
3299 | this_hdr->contents = NULL; | |
3300 | ||
3cddba1e L |
3301 | /* If the section type is unspecified, we set it based on |
3302 | asect->flags. */ | |
98ece1b3 AM |
3303 | if ((asect->flags & SEC_GROUP) != 0) |
3304 | sh_type = SHT_GROUP; | |
98ece1b3 | 3305 | else |
94be91de | 3306 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3307 | |
3cddba1e | 3308 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3309 | this_hdr->sh_type = sh_type; |
3310 | else if (this_hdr->sh_type == SHT_NOBITS | |
3311 | && sh_type == SHT_PROGBITS | |
3312 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3313 | { |
98ece1b3 AM |
3314 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3315 | allow the link to proceed. This can happen when users link | |
3316 | non-bss input sections to bss output sections, or emit data | |
3317 | to a bss output section via a linker script. */ | |
4eca0228 | 3318 | _bfd_error_handler |
871b3ab2 | 3319 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3320 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3321 | } |
3322 | ||
2f89ff8d | 3323 | switch (this_hdr->sh_type) |
252b5132 | 3324 | { |
2f89ff8d | 3325 | default: |
2f89ff8d L |
3326 | break; |
3327 | ||
3328 | case SHT_STRTAB: | |
2f89ff8d L |
3329 | case SHT_NOTE: |
3330 | case SHT_NOBITS: | |
3331 | case SHT_PROGBITS: | |
3332 | break; | |
606851fb AM |
3333 | |
3334 | case SHT_INIT_ARRAY: | |
3335 | case SHT_FINI_ARRAY: | |
3336 | case SHT_PREINIT_ARRAY: | |
3337 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3338 | break; | |
2f89ff8d L |
3339 | |
3340 | case SHT_HASH: | |
c7ac6ff8 | 3341 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3342 | break; |
5de3bf90 | 3343 | |
2f89ff8d | 3344 | case SHT_DYNSYM: |
252b5132 | 3345 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3346 | break; |
3347 | ||
3348 | case SHT_DYNAMIC: | |
252b5132 | 3349 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3350 | break; |
3351 | ||
3352 | case SHT_RELA: | |
3353 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3354 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3355 | break; | |
3356 | ||
3357 | case SHT_REL: | |
3358 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3359 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3360 | break; | |
3361 | ||
3362 | case SHT_GNU_versym: | |
252b5132 | 3363 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3364 | break; |
3365 | ||
3366 | case SHT_GNU_verdef: | |
252b5132 RH |
3367 | this_hdr->sh_entsize = 0; |
3368 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3369 | cverdefs. The linker will set cverdefs, but sh_info will be |
3370 | zero. */ | |
252b5132 RH |
3371 | if (this_hdr->sh_info == 0) |
3372 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3373 | else | |
3374 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3375 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3376 | break; |
3377 | ||
3378 | case SHT_GNU_verneed: | |
252b5132 RH |
3379 | this_hdr->sh_entsize = 0; |
3380 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3381 | cverrefs. The linker will set cverrefs, but sh_info will be |
3382 | zero. */ | |
252b5132 RH |
3383 | if (this_hdr->sh_info == 0) |
3384 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3385 | else | |
3386 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3387 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3388 | break; |
3389 | ||
3390 | case SHT_GROUP: | |
1783205a | 3391 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3392 | break; |
fdc90cb4 JJ |
3393 | |
3394 | case SHT_GNU_HASH: | |
3395 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3396 | break; | |
dbb410c3 | 3397 | } |
252b5132 RH |
3398 | |
3399 | if ((asect->flags & SEC_ALLOC) != 0) | |
3400 | this_hdr->sh_flags |= SHF_ALLOC; | |
3401 | if ((asect->flags & SEC_READONLY) == 0) | |
3402 | this_hdr->sh_flags |= SHF_WRITE; | |
3403 | if ((asect->flags & SEC_CODE) != 0) | |
3404 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3405 | if ((asect->flags & SEC_MERGE) != 0) |
3406 | { | |
3407 | this_hdr->sh_flags |= SHF_MERGE; | |
3408 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3409 | } |
84865015 NC |
3410 | if ((asect->flags & SEC_STRINGS) != 0) |
3411 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3412 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3413 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3414 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3415 | { |
3416 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3417 | if (asect->size == 0 |
3418 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3419 | { |
3a800eb9 | 3420 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3421 | |
704afa60 | 3422 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3423 | if (o != NULL) |
3424 | { | |
704afa60 | 3425 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3426 | if (this_hdr->sh_size != 0) |
3427 | this_hdr->sh_type = SHT_NOBITS; | |
3428 | } | |
704afa60 JJ |
3429 | } |
3430 | } | |
18ae9cc1 L |
3431 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3432 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3433 | |
d4730f92 BS |
3434 | /* If the section has relocs, set up a section header for the |
3435 | SHT_REL[A] section. If two relocation sections are required for | |
3436 | this section, it is up to the processor-specific back-end to | |
3437 | create the other. */ | |
3438 | if ((asect->flags & SEC_RELOC) != 0) | |
3439 | { | |
3440 | /* When doing a relocatable link, create both REL and RELA sections if | |
3441 | needed. */ | |
3442 | if (arg->link_info | |
3443 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3444 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3445 | && (bfd_link_relocatable (arg->link_info) |
3446 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3447 | { |
3448 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3449 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3450 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3451 | { |
3452 | arg->failed = TRUE; | |
3453 | return; | |
3454 | } | |
3455 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3456 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3457 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3458 | { |
3459 | arg->failed = TRUE; | |
3460 | return; | |
3461 | } | |
3462 | } | |
3463 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3464 | (asect->use_rela_p | |
3465 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3466 | name, |
3e19fb8f L |
3467 | asect->use_rela_p, |
3468 | delay_st_name_p)) | |
db4677b8 | 3469 | { |
d4730f92 | 3470 | arg->failed = TRUE; |
db4677b8 AM |
3471 | return; |
3472 | } | |
d4730f92 BS |
3473 | } |
3474 | ||
252b5132 | 3475 | /* Check for processor-specific section types. */ |
0414f35b | 3476 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3477 | if (bed->elf_backend_fake_sections |
3478 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3479 | { |
3480 | arg->failed = TRUE; | |
3481 | return; | |
3482 | } | |
252b5132 | 3483 | |
42bb2e33 | 3484 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3485 | { |
3486 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3487 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3488 | this_hdr->sh_type = sh_type; |
3489 | } | |
252b5132 RH |
3490 | } |
3491 | ||
bcacc0f5 AM |
3492 | /* Fill in the contents of a SHT_GROUP section. Called from |
3493 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3494 | when ELF targets use the generic linker, ld. Called for ld -r | |
3495 | from bfd_elf_final_link. */ | |
dbb410c3 | 3496 | |
1126897b | 3497 | void |
217aa764 | 3498 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3499 | { |
a50b1753 | 3500 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3501 | asection *elt, *first; |
dbb410c3 | 3502 | unsigned char *loc; |
b34976b6 | 3503 | bfd_boolean gas; |
dbb410c3 | 3504 | |
7e4111ad L |
3505 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3506 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3507 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3508 | || sec->size == 0 | |
dbb410c3 AM |
3509 | || *failedptr) |
3510 | return; | |
3511 | ||
bcacc0f5 AM |
3512 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3513 | { | |
3514 | unsigned long symindx = 0; | |
3515 | ||
3516 | /* elf_group_id will have been set up by objcopy and the | |
3517 | generic linker. */ | |
3518 | if (elf_group_id (sec) != NULL) | |
3519 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3520 | |
bcacc0f5 AM |
3521 | if (symindx == 0) |
3522 | { | |
3523 | /* If called from the assembler, swap_out_syms will have set up | |
3524 | elf_section_syms. */ | |
3525 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3526 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3527 | } | |
3528 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3529 | } | |
3530 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3531 | { |
bcacc0f5 AM |
3532 | /* The ELF backend linker sets sh_info to -2 when the group |
3533 | signature symbol is global, and thus the index can't be | |
3534 | set until all local symbols are output. */ | |
53720c49 AM |
3535 | asection *igroup; |
3536 | struct bfd_elf_section_data *sec_data; | |
3537 | unsigned long symndx; | |
3538 | unsigned long extsymoff; | |
bcacc0f5 AM |
3539 | struct elf_link_hash_entry *h; |
3540 | ||
53720c49 AM |
3541 | /* The point of this little dance to the first SHF_GROUP section |
3542 | then back to the SHT_GROUP section is that this gets us to | |
3543 | the SHT_GROUP in the input object. */ | |
3544 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3545 | sec_data = elf_section_data (igroup); | |
3546 | symndx = sec_data->this_hdr.sh_info; | |
3547 | extsymoff = 0; | |
bcacc0f5 AM |
3548 | if (!elf_bad_symtab (igroup->owner)) |
3549 | { | |
3550 | Elf_Internal_Shdr *symtab_hdr; | |
3551 | ||
3552 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3553 | extsymoff = symtab_hdr->sh_info; | |
3554 | } | |
3555 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3556 | while (h->root.type == bfd_link_hash_indirect | |
3557 | || h->root.type == bfd_link_hash_warning) | |
3558 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3559 | ||
3560 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3561 | } |
dbb410c3 | 3562 | |
1126897b | 3563 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3564 | gas = TRUE; |
dbb410c3 AM |
3565 | if (sec->contents == NULL) |
3566 | { | |
b34976b6 | 3567 | gas = FALSE; |
a50b1753 | 3568 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3569 | |
3570 | /* Arrange for the section to be written out. */ | |
3571 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3572 | if (sec->contents == NULL) |
3573 | { | |
b34976b6 | 3574 | *failedptr = TRUE; |
dbb410c3 AM |
3575 | return; |
3576 | } | |
3577 | } | |
3578 | ||
eea6121a | 3579 | loc = sec->contents + sec->size; |
dbb410c3 | 3580 | |
9dce4196 AM |
3581 | /* Get the pointer to the first section in the group that gas |
3582 | squirreled away here. objcopy arranges for this to be set to the | |
3583 | start of the input section group. */ | |
3584 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3585 | |
3586 | /* First element is a flag word. Rest of section is elf section | |
3587 | indices for all the sections of the group. Write them backwards | |
3588 | just to keep the group in the same order as given in .section | |
3589 | directives, not that it matters. */ | |
3590 | while (elt != NULL) | |
3591 | { | |
9dce4196 | 3592 | asection *s; |
9dce4196 | 3593 | |
9dce4196 | 3594 | s = elt; |
415f38a6 AM |
3595 | if (!gas) |
3596 | s = s->output_section; | |
3597 | if (s != NULL | |
3598 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3599 | { |
db4677b8 | 3600 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3601 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3602 | ||
3603 | if (elf_sec->rel.hdr != NULL | |
3604 | && (gas | |
3605 | || (input_elf_sec->rel.hdr != NULL | |
3606 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3607 | { |
28e07a05 | 3608 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3609 | loc -= 4; |
3610 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3611 | } | |
28e07a05 AM |
3612 | if (elf_sec->rela.hdr != NULL |
3613 | && (gas | |
3614 | || (input_elf_sec->rela.hdr != NULL | |
3615 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3616 | { |
28e07a05 | 3617 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3618 | loc -= 4; |
3619 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3620 | } | |
01e1a5bc | 3621 | loc -= 4; |
db4677b8 | 3622 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3623 | } |
945906ff | 3624 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3625 | if (elt == first) |
3626 | break; | |
dbb410c3 AM |
3627 | } |
3628 | ||
7bdf4127 AB |
3629 | loc -= 4; |
3630 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3631 | |
9dce4196 | 3632 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3633 | } |
3634 | ||
bce964aa AM |
3635 | /* Given NAME, the name of a relocation section stripped of its |
3636 | .rel/.rela prefix, return the section in ABFD to which the | |
3637 | relocations apply. */ | |
bd53a53a L |
3638 | |
3639 | asection * | |
bce964aa AM |
3640 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3641 | { | |
3642 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3643 | section likely apply to .got.plt or .got section. */ | |
3644 | if (get_elf_backend_data (abfd)->want_got_plt | |
3645 | && strcmp (name, ".plt") == 0) | |
3646 | { | |
3647 | asection *sec; | |
3648 | ||
3649 | name = ".got.plt"; | |
3650 | sec = bfd_get_section_by_name (abfd, name); | |
3651 | if (sec != NULL) | |
3652 | return sec; | |
3653 | name = ".got"; | |
3654 | } | |
3655 | ||
3656 | return bfd_get_section_by_name (abfd, name); | |
3657 | } | |
3658 | ||
3659 | /* Return the section to which RELOC_SEC applies. */ | |
3660 | ||
3661 | static asection * | |
3662 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3663 | { |
3664 | const char *name; | |
3665 | unsigned int type; | |
3666 | bfd *abfd; | |
bce964aa | 3667 | const struct elf_backend_data *bed; |
bd53a53a L |
3668 | |
3669 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3670 | if (type != SHT_REL && type != SHT_RELA) | |
3671 | return NULL; | |
3672 | ||
3673 | /* We look up the section the relocs apply to by name. */ | |
3674 | name = reloc_sec->name; | |
bce964aa AM |
3675 | if (strncmp (name, ".rel", 4) != 0) |
3676 | return NULL; | |
3677 | name += 4; | |
3678 | if (type == SHT_RELA && *name++ != 'a') | |
3679 | return NULL; | |
bd53a53a | 3680 | |
bd53a53a | 3681 | abfd = reloc_sec->owner; |
bce964aa AM |
3682 | bed = get_elf_backend_data (abfd); |
3683 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3684 | } |
3685 | ||
252b5132 RH |
3686 | /* Assign all ELF section numbers. The dummy first section is handled here |
3687 | too. The link/info pointers for the standard section types are filled | |
3688 | in here too, while we're at it. */ | |
3689 | ||
b34976b6 | 3690 | static bfd_boolean |
da9f89d4 | 3691 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3692 | { |
3693 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3694 | asection *sec; | |
3e19fb8f | 3695 | unsigned int section_number; |
252b5132 | 3696 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3697 | struct bfd_elf_section_data *d; |
3516e984 | 3698 | bfd_boolean need_symtab; |
446f7ed5 | 3699 | size_t amt; |
252b5132 RH |
3700 | |
3701 | section_number = 1; | |
3702 | ||
2b0f7ef9 JJ |
3703 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3704 | ||
da9f89d4 | 3705 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3706 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3707 | { |
ef53be89 | 3708 | size_t reloc_count = 0; |
14f2c699 | 3709 | |
da9f89d4 | 3710 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3711 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3712 | { |
5daa8fe7 | 3713 | d = elf_section_data (sec); |
da9f89d4 L |
3714 | |
3715 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3716 | { |
5daa8fe7 | 3717 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3718 | { |
3719 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3720 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3721 | abfd->section_count--; |
da9f89d4 | 3722 | } |
08a40648 | 3723 | else |
4fbb74a6 | 3724 | d->this_idx = section_number++; |
da9f89d4 | 3725 | } |
14f2c699 L |
3726 | |
3727 | /* Count relocations. */ | |
3728 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3729 | } |
14f2c699 L |
3730 | |
3731 | /* Clear HAS_RELOC if there are no relocations. */ | |
3732 | if (reloc_count == 0) | |
3733 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3734 | } |
3735 | ||
3736 | for (sec = abfd->sections; sec; sec = sec->next) | |
3737 | { | |
3738 | d = elf_section_data (sec); | |
3739 | ||
3740 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3741 | d->this_idx = section_number++; |
3e19fb8f L |
3742 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3743 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3744 | if (d->rel.hdr) |
2b0f7ef9 | 3745 | { |
d4730f92 | 3746 | d->rel.idx = section_number++; |
3e19fb8f L |
3747 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3748 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3749 | } |
d4730f92 BS |
3750 | else |
3751 | d->rel.idx = 0; | |
23bc299b | 3752 | |
d4730f92 | 3753 | if (d->rela.hdr) |
2b0f7ef9 | 3754 | { |
d4730f92 | 3755 | d->rela.idx = section_number++; |
3e19fb8f L |
3756 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3757 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3758 | } |
23bc299b | 3759 | else |
d4730f92 | 3760 | d->rela.idx = 0; |
252b5132 RH |
3761 | } |
3762 | ||
3516e984 L |
3763 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3764 | || (link_info == NULL | |
3765 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3766 | == HAS_RELOC))); | |
3767 | if (need_symtab) | |
252b5132 | 3768 | { |
12bd6957 | 3769 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3770 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3771 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3772 | { |
7a6e0d89 | 3773 | elf_section_list *entry; |
6a40cf0c NC |
3774 | |
3775 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3776 | ||
7a6e0d89 | 3777 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3778 | entry->ndx = section_number++; |
3779 | elf_symtab_shndx_list (abfd) = entry; | |
3780 | entry->hdr.sh_name | |
9ad5cbcf | 3781 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3782 | ".symtab_shndx", FALSE); |
6a40cf0c | 3783 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3784 | return FALSE; |
9ad5cbcf | 3785 | } |
12bd6957 | 3786 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3787 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3788 | } |
3789 | ||
dd905818 NC |
3790 | elf_shstrtab_sec (abfd) = section_number++; |
3791 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3792 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3793 | ||
1c52a645 L |
3794 | if (section_number >= SHN_LORESERVE) |
3795 | { | |
695344c0 | 3796 | /* xgettext:c-format */ |
871b3ab2 | 3797 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3798 | abfd, section_number); |
3799 | return FALSE; | |
3800 | } | |
3801 | ||
9ad5cbcf | 3802 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3803 | elf_elfheader (abfd)->e_shnum = section_number; |
3804 | ||
3805 | /* Set up the list of section header pointers, in agreement with the | |
3806 | indices. */ | |
446f7ed5 AM |
3807 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
3808 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
252b5132 | 3809 | if (i_shdrp == NULL) |
b34976b6 | 3810 | return FALSE; |
252b5132 | 3811 | |
a50b1753 | 3812 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3813 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3814 | if (i_shdrp[0] == NULL) |
3815 | { | |
3816 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3817 | return FALSE; |
252b5132 | 3818 | } |
252b5132 RH |
3819 | |
3820 | elf_elfsections (abfd) = i_shdrp; | |
3821 | ||
12bd6957 | 3822 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3823 | if (need_symtab) |
252b5132 | 3824 | { |
12bd6957 | 3825 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3826 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3827 | { |
6a40cf0c NC |
3828 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3829 | BFD_ASSERT (entry != NULL); | |
3830 | i_shdrp[entry->ndx] = & entry->hdr; | |
3831 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3832 | } |
12bd6957 AM |
3833 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3834 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3835 | } |
38ce5b11 | 3836 | |
252b5132 RH |
3837 | for (sec = abfd->sections; sec; sec = sec->next) |
3838 | { | |
252b5132 | 3839 | asection *s; |
252b5132 | 3840 | |
91d6fa6a NC |
3841 | d = elf_section_data (sec); |
3842 | ||
252b5132 | 3843 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3844 | if (d->rel.idx != 0) |
3845 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3846 | if (d->rela.idx != 0) | |
3847 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3848 | |
3849 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3850 | ||
3851 | /* sh_link of a reloc section is the section index of the symbol | |
3852 | table. sh_info is the section index of the section to which | |
3853 | the relocation entries apply. */ | |
d4730f92 | 3854 | if (d->rel.idx != 0) |
252b5132 | 3855 | { |
12bd6957 | 3856 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3857 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3858 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3859 | } |
d4730f92 | 3860 | if (d->rela.idx != 0) |
23bc299b | 3861 | { |
12bd6957 | 3862 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3863 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3864 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3865 | } |
252b5132 | 3866 | |
38ce5b11 L |
3867 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3868 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3869 | { | |
3870 | s = elf_linked_to_section (sec); | |
3871 | if (s) | |
38ce5b11 | 3872 | { |
f2876037 | 3873 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3874 | if (link_info != NULL) |
38ce5b11 | 3875 | { |
f2876037 | 3876 | /* Check discarded linkonce section. */ |
dbaa2011 | 3877 | if (discarded_section (s)) |
38ce5b11 | 3878 | { |
ccd2ec6a | 3879 | asection *kept; |
4eca0228 | 3880 | _bfd_error_handler |
695344c0 | 3881 | /* xgettext:c-format */ |
871b3ab2 AM |
3882 | (_("%pB: sh_link of section `%pA' points to" |
3883 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3884 | abfd, d->this_hdr.bfd_section, |
3885 | s, s->owner); | |
3886 | /* Point to the kept section if it has the same | |
3887 | size as the discarded one. */ | |
c0f00686 | 3888 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3889 | if (kept == NULL) |
185d09ad | 3890 | { |
ccd2ec6a L |
3891 | bfd_set_error (bfd_error_bad_value); |
3892 | return FALSE; | |
185d09ad | 3893 | } |
ccd2ec6a | 3894 | s = kept; |
38ce5b11 | 3895 | } |
e424ecc8 | 3896 | |
ccd2ec6a L |
3897 | s = s->output_section; |
3898 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3899 | } |
f2876037 L |
3900 | else |
3901 | { | |
3902 | /* Handle objcopy. */ | |
3903 | if (s->output_section == NULL) | |
3904 | { | |
4eca0228 | 3905 | _bfd_error_handler |
695344c0 | 3906 | /* xgettext:c-format */ |
871b3ab2 AM |
3907 | (_("%pB: sh_link of section `%pA' points to" |
3908 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3909 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3910 | bfd_set_error (bfd_error_bad_value); | |
3911 | return FALSE; | |
3912 | } | |
3913 | s = s->output_section; | |
3914 | } | |
ccd2ec6a L |
3915 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3916 | } | |
3917 | else | |
3918 | { | |
3919 | /* PR 290: | |
3920 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3921 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3922 | sh_info fields. Hence we could get the situation | |
08a40648 | 3923 | where s is NULL. */ |
ccd2ec6a L |
3924 | const struct elf_backend_data *bed |
3925 | = get_elf_backend_data (abfd); | |
3926 | if (bed->link_order_error_handler) | |
3927 | bed->link_order_error_handler | |
695344c0 | 3928 | /* xgettext:c-format */ |
871b3ab2 | 3929 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3930 | abfd, sec); |
38ce5b11 L |
3931 | } |
3932 | } | |
3933 | ||
252b5132 RH |
3934 | switch (d->this_hdr.sh_type) |
3935 | { | |
3936 | case SHT_REL: | |
3937 | case SHT_RELA: | |
3938 | /* A reloc section which we are treating as a normal BFD | |
3939 | section. sh_link is the section index of the symbol | |
3940 | table. sh_info is the section index of the section to | |
3941 | which the relocation entries apply. We assume that an | |
3942 | allocated reloc section uses the dynamic symbol table. | |
3943 | FIXME: How can we be sure? */ | |
3944 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3945 | if (s != NULL) | |
3946 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3947 | ||
bce964aa | 3948 | s = elf_get_reloc_section (sec); |
252b5132 | 3949 | if (s != NULL) |
9ef5d938 L |
3950 | { |
3951 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3952 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3953 | } | |
252b5132 RH |
3954 | break; |
3955 | ||
3956 | case SHT_STRTAB: | |
3957 | /* We assume that a section named .stab*str is a stabs | |
3958 | string section. We look for a section with the same name | |
3959 | but without the trailing ``str'', and set its sh_link | |
3960 | field to point to this section. */ | |
0112cd26 | 3961 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3962 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3963 | { | |
3964 | size_t len; | |
3965 | char *alc; | |
3966 | ||
3967 | len = strlen (sec->name); | |
a50b1753 | 3968 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3969 | if (alc == NULL) |
b34976b6 | 3970 | return FALSE; |
d4c88bbb | 3971 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3972 | alc[len - 3] = '\0'; |
3973 | s = bfd_get_section_by_name (abfd, alc); | |
3974 | free (alc); | |
3975 | if (s != NULL) | |
3976 | { | |
3977 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3978 | ||
3979 | /* This is a .stab section. */ | |
0594c12d AM |
3980 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3981 | elf_section_data (s)->this_hdr.sh_entsize | |
3982 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3983 | } |
3984 | } | |
3985 | break; | |
3986 | ||
3987 | case SHT_DYNAMIC: | |
3988 | case SHT_DYNSYM: | |
3989 | case SHT_GNU_verneed: | |
3990 | case SHT_GNU_verdef: | |
3991 | /* sh_link is the section header index of the string table | |
3992 | used for the dynamic entries, or the symbol table, or the | |
3993 | version strings. */ | |
3994 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3995 | if (s != NULL) | |
3996 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3997 | break; | |
3998 | ||
7f1204bb JJ |
3999 | case SHT_GNU_LIBLIST: |
4000 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
4001 | list used for the dynamic entries, or the symbol table, or |
4002 | the version strings. */ | |
7f1204bb JJ |
4003 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
4004 | ? ".dynstr" : ".gnu.libstr"); | |
4005 | if (s != NULL) | |
4006 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4007 | break; | |
4008 | ||
252b5132 | 4009 | case SHT_HASH: |
fdc90cb4 | 4010 | case SHT_GNU_HASH: |
252b5132 RH |
4011 | case SHT_GNU_versym: |
4012 | /* sh_link is the section header index of the symbol table | |
4013 | this hash table or version table is for. */ | |
4014 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4015 | if (s != NULL) | |
4016 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4017 | break; | |
dbb410c3 AM |
4018 | |
4019 | case SHT_GROUP: | |
12bd6957 | 4020 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4021 | } |
4022 | } | |
4023 | ||
3e19fb8f L |
4024 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4025 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4026 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4027 | ||
b34976b6 | 4028 | return TRUE; |
252b5132 RH |
4029 | } |
4030 | ||
5372391b | 4031 | static bfd_boolean |
217aa764 | 4032 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4033 | { |
4034 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4035 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4036 | if (bed->elf_backend_sym_is_global) |
4037 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4038 | |
e47bf690 | 4039 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4040 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4041 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4042 | } |
4043 | ||
76359541 TP |
4044 | /* Filter global symbols of ABFD to include in the import library. All |
4045 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4046 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4047 | the beginning of that array. | |
4048 | ||
4049 | Returns the number of symbols to keep. */ | |
4050 | ||
4051 | unsigned int | |
4052 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4053 | asymbol **syms, long symcount) | |
4054 | { | |
4055 | long src_count, dst_count = 0; | |
4056 | ||
4057 | for (src_count = 0; src_count < symcount; src_count++) | |
4058 | { | |
4059 | asymbol *sym = syms[src_count]; | |
4060 | char *name = (char *) bfd_asymbol_name (sym); | |
4061 | struct bfd_link_hash_entry *h; | |
4062 | ||
4063 | if (!sym_is_global (abfd, sym)) | |
4064 | continue; | |
4065 | ||
4066 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4067 | if (h == NULL) |
4068 | continue; | |
76359541 TP |
4069 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4070 | continue; | |
76359541 TP |
4071 | if (h->linker_def || h->ldscript_def) |
4072 | continue; | |
4073 | ||
4074 | syms[dst_count++] = sym; | |
4075 | } | |
4076 | ||
4077 | syms[dst_count] = NULL; | |
4078 | ||
4079 | return dst_count; | |
4080 | } | |
4081 | ||
5372391b | 4082 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4083 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4084 | |
4085 | static bfd_boolean | |
4086 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4087 | { | |
c6d8cab4 L |
4088 | elf_symbol_type *type_ptr; |
4089 | ||
db0c309f NC |
4090 | if (sym == NULL) |
4091 | return FALSE; | |
4092 | ||
c6d8cab4 L |
4093 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4094 | return FALSE; | |
4095 | ||
db0c309f NC |
4096 | if (sym->section == NULL) |
4097 | return TRUE; | |
4098 | ||
c6d8cab4 L |
4099 | type_ptr = elf_symbol_from (abfd, sym); |
4100 | return ((type_ptr != NULL | |
4101 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4102 | && bfd_is_abs_section (sym->section)) | |
4103 | || !(sym->section->owner == abfd | |
db0c309f NC |
4104 | || (sym->section->output_section != NULL |
4105 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4106 | && sym->section->output_offset == 0) |
4107 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4108 | } |
4109 | ||
2633a79c AM |
4110 | /* Map symbol from it's internal number to the external number, moving |
4111 | all local symbols to be at the head of the list. */ | |
4112 | ||
b34976b6 | 4113 | static bfd_boolean |
12bd6957 | 4114 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4115 | { |
dc810e39 | 4116 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4117 | asymbol **syms = bfd_get_outsymbols (abfd); |
4118 | asymbol **sect_syms; | |
dc810e39 AM |
4119 | unsigned int num_locals = 0; |
4120 | unsigned int num_globals = 0; | |
4121 | unsigned int num_locals2 = 0; | |
4122 | unsigned int num_globals2 = 0; | |
7292b3ac | 4123 | unsigned int max_index = 0; |
dc810e39 | 4124 | unsigned int idx; |
252b5132 RH |
4125 | asection *asect; |
4126 | asymbol **new_syms; | |
446f7ed5 | 4127 | size_t amt; |
252b5132 RH |
4128 | |
4129 | #ifdef DEBUG | |
4130 | fprintf (stderr, "elf_map_symbols\n"); | |
4131 | fflush (stderr); | |
4132 | #endif | |
4133 | ||
252b5132 RH |
4134 | for (asect = abfd->sections; asect; asect = asect->next) |
4135 | { | |
4136 | if (max_index < asect->index) | |
4137 | max_index = asect->index; | |
4138 | } | |
4139 | ||
4140 | max_index++; | |
446f7ed5 AM |
4141 | amt = max_index * sizeof (asymbol *); |
4142 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 | 4143 | if (sect_syms == NULL) |
b34976b6 | 4144 | return FALSE; |
252b5132 | 4145 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4146 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4147 | |
079e9a2f AM |
4148 | /* Init sect_syms entries for any section symbols we have already |
4149 | decided to output. */ | |
252b5132 RH |
4150 | for (idx = 0; idx < symcount; idx++) |
4151 | { | |
dc810e39 | 4152 | asymbol *sym = syms[idx]; |
c044fabd | 4153 | |
252b5132 | 4154 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4155 | && sym->value == 0 |
2633a79c AM |
4156 | && !ignore_section_sym (abfd, sym) |
4157 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4158 | { |
5372391b | 4159 | asection *sec = sym->section; |
252b5132 | 4160 | |
5372391b AM |
4161 | if (sec->owner != abfd) |
4162 | sec = sec->output_section; | |
252b5132 | 4163 | |
5372391b | 4164 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4165 | } |
4166 | } | |
4167 | ||
252b5132 RH |
4168 | /* Classify all of the symbols. */ |
4169 | for (idx = 0; idx < symcount; idx++) | |
4170 | { | |
2633a79c | 4171 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4172 | num_globals++; |
2633a79c AM |
4173 | else if (!ignore_section_sym (abfd, syms[idx])) |
4174 | num_locals++; | |
252b5132 | 4175 | } |
079e9a2f | 4176 | |
5372391b | 4177 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4178 | sections will already have a section symbol in outsymbols, but |
4179 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4180 | at least in that case. */ | |
252b5132 RH |
4181 | for (asect = abfd->sections; asect; asect = asect->next) |
4182 | { | |
079e9a2f | 4183 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4184 | { |
079e9a2f | 4185 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4186 | num_locals++; |
4187 | else | |
4188 | num_globals++; | |
252b5132 RH |
4189 | } |
4190 | } | |
4191 | ||
4192 | /* Now sort the symbols so the local symbols are first. */ | |
446f7ed5 AM |
4193 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
4194 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 | 4195 | if (new_syms == NULL) |
b34976b6 | 4196 | return FALSE; |
252b5132 RH |
4197 | |
4198 | for (idx = 0; idx < symcount; idx++) | |
4199 | { | |
4200 | asymbol *sym = syms[idx]; | |
dc810e39 | 4201 | unsigned int i; |
252b5132 | 4202 | |
2633a79c AM |
4203 | if (sym_is_global (abfd, sym)) |
4204 | i = num_locals + num_globals2++; | |
4205 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4206 | i = num_locals2++; |
4207 | else | |
2633a79c | 4208 | continue; |
252b5132 RH |
4209 | new_syms[i] = sym; |
4210 | sym->udata.i = i + 1; | |
4211 | } | |
4212 | for (asect = abfd->sections; asect; asect = asect->next) | |
4213 | { | |
079e9a2f | 4214 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4215 | { |
079e9a2f | 4216 | asymbol *sym = asect->symbol; |
dc810e39 | 4217 | unsigned int i; |
252b5132 | 4218 | |
079e9a2f | 4219 | sect_syms[asect->index] = sym; |
252b5132 RH |
4220 | if (!sym_is_global (abfd, sym)) |
4221 | i = num_locals2++; | |
4222 | else | |
4223 | i = num_locals + num_globals2++; | |
4224 | new_syms[i] = sym; | |
4225 | sym->udata.i = i + 1; | |
4226 | } | |
4227 | } | |
4228 | ||
4229 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4230 | ||
12bd6957 | 4231 | *pnum_locals = num_locals; |
b34976b6 | 4232 | return TRUE; |
252b5132 RH |
4233 | } |
4234 | ||
4235 | /* Align to the maximum file alignment that could be required for any | |
4236 | ELF data structure. */ | |
4237 | ||
268b6b39 | 4238 | static inline file_ptr |
217aa764 | 4239 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4240 | { |
4241 | return (off + align - 1) & ~(align - 1); | |
4242 | } | |
4243 | ||
4244 | /* Assign a file position to a section, optionally aligning to the | |
4245 | required section alignment. */ | |
4246 | ||
217aa764 AM |
4247 | file_ptr |
4248 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4249 | file_ptr offset, | |
4250 | bfd_boolean align) | |
252b5132 | 4251 | { |
72de5009 AM |
4252 | if (align && i_shdrp->sh_addralign > 1) |
4253 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4254 | i_shdrp->sh_offset = offset; |
4255 | if (i_shdrp->bfd_section != NULL) | |
4256 | i_shdrp->bfd_section->filepos = offset; | |
4257 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4258 | offset += i_shdrp->sh_size; | |
4259 | return offset; | |
4260 | } | |
4261 | ||
4262 | /* Compute the file positions we are going to put the sections at, and | |
4263 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4264 | is not NULL, this is being called by the ELF backend linker. */ | |
4265 | ||
b34976b6 | 4266 | bfd_boolean |
217aa764 AM |
4267 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4268 | struct bfd_link_info *link_info) | |
252b5132 | 4269 | { |
9c5bfbb7 | 4270 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4271 | struct fake_section_arg fsargs; |
b34976b6 | 4272 | bfd_boolean failed; |
ef10c3ac | 4273 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4274 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4275 | bfd_boolean need_symtab; |
252b5132 RH |
4276 | |
4277 | if (abfd->output_has_begun) | |
b34976b6 | 4278 | return TRUE; |
252b5132 RH |
4279 | |
4280 | /* Do any elf backend specific processing first. */ | |
4281 | if (bed->elf_backend_begin_write_processing) | |
4282 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4283 | ||
ed7e9d0b | 4284 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
b34976b6 | 4285 | return FALSE; |
252b5132 | 4286 | |
d4730f92 BS |
4287 | fsargs.failed = FALSE; |
4288 | fsargs.link_info = link_info; | |
4289 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4290 | if (fsargs.failed) | |
b34976b6 | 4291 | return FALSE; |
252b5132 | 4292 | |
da9f89d4 | 4293 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4294 | return FALSE; |
252b5132 RH |
4295 | |
4296 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4297 | need_symtab = (link_info == NULL |
4298 | && (bfd_get_symcount (abfd) > 0 | |
4299 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4300 | == HAS_RELOC))); | |
4301 | if (need_symtab) | |
252b5132 RH |
4302 | { |
4303 | /* Non-zero if doing a relocatable link. */ | |
4304 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4305 | ||
4306 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4307 | return FALSE; |
252b5132 RH |
4308 | } |
4309 | ||
d4730f92 | 4310 | failed = FALSE; |
1126897b | 4311 | if (link_info == NULL) |
dbb410c3 | 4312 | { |
1126897b | 4313 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4314 | if (failed) |
b34976b6 | 4315 | return FALSE; |
dbb410c3 AM |
4316 | } |
4317 | ||
252b5132 | 4318 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4319 | /* sh_name was set in init_file_header. */ |
252b5132 | 4320 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4321 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4322 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4323 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4324 | shstrtab_hdr->sh_entsize = 0; |
4325 | shstrtab_hdr->sh_link = 0; | |
4326 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4327 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4328 | shstrtab_hdr->sh_addralign = 1; |
4329 | ||
c84fca4d | 4330 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4331 | return FALSE; |
252b5132 | 4332 | |
3516e984 | 4333 | if (need_symtab) |
252b5132 RH |
4334 | { |
4335 | file_ptr off; | |
4336 | Elf_Internal_Shdr *hdr; | |
4337 | ||
12bd6957 | 4338 | off = elf_next_file_pos (abfd); |
252b5132 | 4339 | |
6a40cf0c | 4340 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4341 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4342 | |
6a40cf0c NC |
4343 | if (elf_symtab_shndx_list (abfd) != NULL) |
4344 | { | |
4345 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4346 | if (hdr->sh_size != 0) | |
4347 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4348 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4349 | } | |
9ad5cbcf | 4350 | |
252b5132 | 4351 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4352 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4353 | |
12bd6957 | 4354 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4355 | |
4356 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4357 | out. */ |
252b5132 | 4358 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4359 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4360 | return FALSE; |
ef10c3ac | 4361 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4362 | } |
4363 | ||
b34976b6 | 4364 | abfd->output_has_begun = TRUE; |
252b5132 | 4365 | |
b34976b6 | 4366 | return TRUE; |
252b5132 RH |
4367 | } |
4368 | ||
8ded5a0f AM |
4369 | /* Make an initial estimate of the size of the program header. If we |
4370 | get the number wrong here, we'll redo section placement. */ | |
4371 | ||
4372 | static bfd_size_type | |
4373 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4374 | { | |
4375 | size_t segs; | |
4376 | asection *s; | |
2b05f1b7 | 4377 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4378 | |
4379 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4380 | and one for data. */ | |
4381 | segs = 2; | |
4382 | ||
4383 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4384 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4385 | { |
4386 | /* If we have a loadable interpreter section, we need a | |
4387 | PT_INTERP segment. In this case, assume we also need a | |
4388 | PT_PHDR segment, although that may not be true for all | |
4389 | targets. */ | |
e9a38e0f | 4390 | segs += 2; |
8ded5a0f AM |
4391 | } |
4392 | ||
4393 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4394 | { | |
4395 | /* We need a PT_DYNAMIC segment. */ | |
4396 | ++segs; | |
f210dcff | 4397 | } |
08a40648 | 4398 | |
ceae84aa | 4399 | if (info != NULL && info->relro) |
f210dcff L |
4400 | { |
4401 | /* We need a PT_GNU_RELRO segment. */ | |
4402 | ++segs; | |
8ded5a0f AM |
4403 | } |
4404 | ||
12bd6957 | 4405 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4406 | { |
4407 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4408 | ++segs; | |
4409 | } | |
4410 | ||
12bd6957 | 4411 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4412 | { |
2b05f1b7 L |
4413 | /* We need a PT_GNU_STACK segment. */ |
4414 | ++segs; | |
4415 | } | |
94b11780 | 4416 | |
0a59decb L |
4417 | s = bfd_get_section_by_name (abfd, |
4418 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4419 | if (s != NULL && s->size != 0) | |
4420 | { | |
4421 | /* We need a PT_GNU_PROPERTY segment. */ | |
4422 | ++segs; | |
4423 | } | |
4424 | ||
2b05f1b7 L |
4425 | for (s = abfd->sections; s != NULL; s = s->next) |
4426 | { | |
8ded5a0f | 4427 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4428 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4429 | { |
23e463ed | 4430 | unsigned int alignment_power; |
8ded5a0f AM |
4431 | /* We need a PT_NOTE segment. */ |
4432 | ++segs; | |
23e463ed L |
4433 | /* Try to create just one PT_NOTE segment for all adjacent |
4434 | loadable SHT_NOTE sections. gABI requires that within a | |
4435 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4436 | each note should have the same alignment. So we check | |
4437 | whether the sections are correctly aligned. */ | |
4438 | alignment_power = s->alignment_power; | |
4439 | while (s->next != NULL | |
4440 | && s->next->alignment_power == alignment_power | |
4441 | && (s->next->flags & SEC_LOAD) != 0 | |
4442 | && elf_section_type (s->next) == SHT_NOTE) | |
4443 | s = s->next; | |
8ded5a0f AM |
4444 | } |
4445 | } | |
4446 | ||
4447 | for (s = abfd->sections; s != NULL; s = s->next) | |
4448 | { | |
4449 | if (s->flags & SEC_THREAD_LOCAL) | |
4450 | { | |
4451 | /* We need a PT_TLS segment. */ | |
4452 | ++segs; | |
4453 | break; | |
4454 | } | |
4455 | } | |
4456 | ||
2b05f1b7 | 4457 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4458 | |
df3a023b AM |
4459 | if ((abfd->flags & D_PAGED) != 0 |
4460 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4461 | { | |
4462 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4463 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4464 | for (s = abfd->sections; s != NULL; s = s->next) | |
4465 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4466 | { | |
4467 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4468 | { | |
4469 | _bfd_error_handler | |
4470 | /* xgettext:c-format */ | |
4471 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4472 | "sh_info field: %d"), | |
4473 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4474 | continue; | |
4475 | } | |
4476 | /* Align mbind section to page size. */ | |
4477 | if (s->alignment_power < page_align_power) | |
4478 | s->alignment_power = page_align_power; | |
4479 | segs ++; | |
4480 | } | |
4481 | } | |
4482 | ||
4483 | /* Let the backend count up any program headers it might need. */ | |
4484 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4485 | { |
4486 | int a; | |
4487 | ||
4488 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4489 | if (a == -1) | |
4490 | abort (); | |
4491 | segs += a; | |
4492 | } | |
4493 | ||
4494 | return segs * bed->s->sizeof_phdr; | |
4495 | } | |
4496 | ||
2ea37f1c NC |
4497 | /* Find the segment that contains the output_section of section. */ |
4498 | ||
4499 | Elf_Internal_Phdr * | |
4500 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4501 | { | |
4502 | struct elf_segment_map *m; | |
4503 | Elf_Internal_Phdr *p; | |
4504 | ||
12bd6957 | 4505 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4506 | m != NULL; |
4507 | m = m->next, p++) | |
4508 | { | |
4509 | int i; | |
4510 | ||
4511 | for (i = m->count - 1; i >= 0; i--) | |
4512 | if (m->sections[i] == section) | |
4513 | return p; | |
4514 | } | |
4515 | ||
4516 | return NULL; | |
4517 | } | |
4518 | ||
252b5132 RH |
4519 | /* Create a mapping from a set of sections to a program segment. */ |
4520 | ||
217aa764 AM |
4521 | static struct elf_segment_map * |
4522 | make_mapping (bfd *abfd, | |
4523 | asection **sections, | |
4524 | unsigned int from, | |
4525 | unsigned int to, | |
4526 | bfd_boolean phdr) | |
252b5132 RH |
4527 | { |
4528 | struct elf_segment_map *m; | |
4529 | unsigned int i; | |
4530 | asection **hdrpp; | |
986f0783 | 4531 | size_t amt; |
252b5132 | 4532 | |
00bee008 AM |
4533 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4534 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4535 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4536 | if (m == NULL) |
4537 | return NULL; | |
4538 | m->next = NULL; | |
4539 | m->p_type = PT_LOAD; | |
4540 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4541 | m->sections[i - from] = *hdrpp; | |
4542 | m->count = to - from; | |
4543 | ||
4544 | if (from == 0 && phdr) | |
4545 | { | |
4546 | /* Include the headers in the first PT_LOAD segment. */ | |
4547 | m->includes_filehdr = 1; | |
4548 | m->includes_phdrs = 1; | |
4549 | } | |
4550 | ||
4551 | return m; | |
4552 | } | |
4553 | ||
229fcec5 MM |
4554 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4555 | on failure. */ | |
4556 | ||
4557 | struct elf_segment_map * | |
4558 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4559 | { | |
4560 | struct elf_segment_map *m; | |
4561 | ||
a50b1753 | 4562 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4563 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4564 | if (m == NULL) |
4565 | return NULL; | |
4566 | m->next = NULL; | |
4567 | m->p_type = PT_DYNAMIC; | |
4568 | m->count = 1; | |
4569 | m->sections[0] = dynsec; | |
08a40648 | 4570 | |
229fcec5 MM |
4571 | return m; |
4572 | } | |
4573 | ||
8ded5a0f | 4574 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4575 | |
b34976b6 | 4576 | static bfd_boolean |
3dea8fca AM |
4577 | elf_modify_segment_map (bfd *abfd, |
4578 | struct bfd_link_info *info, | |
4579 | bfd_boolean remove_empty_load) | |
252b5132 | 4580 | { |
252e386e | 4581 | struct elf_segment_map **m; |
8ded5a0f | 4582 | const struct elf_backend_data *bed; |
252b5132 | 4583 | |
8ded5a0f AM |
4584 | /* The placement algorithm assumes that non allocated sections are |
4585 | not in PT_LOAD segments. We ensure this here by removing such | |
4586 | sections from the segment map. We also remove excluded | |
252e386e AM |
4587 | sections. Finally, any PT_LOAD segment without sections is |
4588 | removed. */ | |
12bd6957 | 4589 | m = &elf_seg_map (abfd); |
252e386e | 4590 | while (*m) |
8ded5a0f AM |
4591 | { |
4592 | unsigned int i, new_count; | |
252b5132 | 4593 | |
252e386e | 4594 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4595 | { |
252e386e AM |
4596 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4597 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4598 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4599 | { |
252e386e AM |
4600 | (*m)->sections[new_count] = (*m)->sections[i]; |
4601 | new_count++; | |
8ded5a0f AM |
4602 | } |
4603 | } | |
252e386e | 4604 | (*m)->count = new_count; |
252b5132 | 4605 | |
1a9ccd70 NC |
4606 | if (remove_empty_load |
4607 | && (*m)->p_type == PT_LOAD | |
4608 | && (*m)->count == 0 | |
4609 | && !(*m)->includes_phdrs) | |
252e386e AM |
4610 | *m = (*m)->next; |
4611 | else | |
4612 | m = &(*m)->next; | |
8ded5a0f | 4613 | } |
252b5132 | 4614 | |
8ded5a0f AM |
4615 | bed = get_elf_backend_data (abfd); |
4616 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4617 | { |
252e386e | 4618 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4619 | return FALSE; |
252b5132 | 4620 | } |
252b5132 | 4621 | |
8ded5a0f AM |
4622 | return TRUE; |
4623 | } | |
252b5132 | 4624 | |
dbc88fc1 AM |
4625 | #define IS_TBSS(s) \ |
4626 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4627 | ||
8ded5a0f | 4628 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4629 | |
8ded5a0f AM |
4630 | bfd_boolean |
4631 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4632 | { | |
4633 | unsigned int count; | |
4634 | struct elf_segment_map *m; | |
4635 | asection **sections = NULL; | |
4636 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4637 | bfd_boolean no_user_phdrs; |
252b5132 | 4638 | |
12bd6957 | 4639 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4640 | |
4641 | if (info != NULL) | |
4642 | info->user_phdrs = !no_user_phdrs; | |
4643 | ||
3dea8fca | 4644 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4645 | { |
8ded5a0f AM |
4646 | asection *s; |
4647 | unsigned int i; | |
4648 | struct elf_segment_map *mfirst; | |
4649 | struct elf_segment_map **pm; | |
4650 | asection *last_hdr; | |
4651 | bfd_vma last_size; | |
00bee008 | 4652 | unsigned int hdr_index; |
8ded5a0f AM |
4653 | bfd_vma maxpagesize; |
4654 | asection **hdrpp; | |
64029e93 | 4655 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4656 | bfd_boolean writable; |
2888249f | 4657 | bfd_boolean executable; |
446f7ed5 | 4658 | unsigned int tls_count = 0; |
8ded5a0f | 4659 | asection *first_tls = NULL; |
a91e1603 | 4660 | asection *first_mbind = NULL; |
8ded5a0f | 4661 | asection *dynsec, *eh_frame_hdr; |
446f7ed5 | 4662 | size_t amt; |
8d06853e | 4663 | bfd_vma addr_mask, wrap_to = 0; |
64029e93 | 4664 | bfd_size_type phdr_size; |
252b5132 | 4665 | |
8ded5a0f | 4666 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4667 | |
446f7ed5 AM |
4668 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
4669 | sections = (asection **) bfd_malloc (amt); | |
8ded5a0f | 4670 | if (sections == NULL) |
252b5132 | 4671 | goto error_return; |
252b5132 | 4672 | |
8d06853e AM |
4673 | /* Calculate top address, avoiding undefined behaviour of shift |
4674 | left operator when shift count is equal to size of type | |
4675 | being shifted. */ | |
4676 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4677 | addr_mask = (addr_mask << 1) + 1; | |
4678 | ||
8ded5a0f AM |
4679 | i = 0; |
4680 | for (s = abfd->sections; s != NULL; s = s->next) | |
4681 | { | |
4682 | if ((s->flags & SEC_ALLOC) != 0) | |
4683 | { | |
48db3297 AM |
4684 | /* target_index is unused until bfd_elf_final_link |
4685 | starts output of section symbols. Use it to make | |
4686 | qsort stable. */ | |
4687 | s->target_index = i; | |
8ded5a0f AM |
4688 | sections[i] = s; |
4689 | ++i; | |
8d06853e AM |
4690 | /* A wrapping section potentially clashes with header. */ |
4691 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4692 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4693 | } |
4694 | } | |
4695 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4696 | count = i; | |
252b5132 | 4697 | |
8ded5a0f | 4698 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4699 | |
64029e93 AM |
4700 | phdr_size = elf_program_header_size (abfd); |
4701 | if (phdr_size == (bfd_size_type) -1) | |
4702 | phdr_size = get_program_header_size (abfd, info); | |
4703 | phdr_size += bed->s->sizeof_ehdr; | |
4704 | maxpagesize = bed->maxpagesize; | |
4705 | if (maxpagesize == 0) | |
4706 | maxpagesize = 1; | |
4707 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4708 | if (count != 0 | |
4709 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4710 | >= (phdr_size & (maxpagesize - 1)))) | |
4711 | /* For compatibility with old scripts that may not be using | |
4712 | SIZEOF_HEADERS, add headers when it looks like space has | |
4713 | been left for them. */ | |
4714 | phdr_in_segment = TRUE; | |
252b5132 | 4715 | |
64029e93 | 4716 | /* Build the mapping. */ |
8ded5a0f AM |
4717 | mfirst = NULL; |
4718 | pm = &mfirst; | |
252b5132 | 4719 | |
8ded5a0f AM |
4720 | /* If we have a .interp section, then create a PT_PHDR segment for |
4721 | the program headers and a PT_INTERP segment for the .interp | |
4722 | section. */ | |
4723 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4724 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4725 | { |
4726 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4727 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4728 | if (m == NULL) |
4729 | goto error_return; | |
4730 | m->next = NULL; | |
4731 | m->p_type = PT_PHDR; | |
f882209d | 4732 | m->p_flags = PF_R; |
8ded5a0f AM |
4733 | m->p_flags_valid = 1; |
4734 | m->includes_phdrs = 1; | |
64029e93 | 4735 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4736 | *pm = m; |
4737 | pm = &m->next; | |
252b5132 | 4738 | |
8ded5a0f | 4739 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4740 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4741 | if (m == NULL) |
4742 | goto error_return; | |
4743 | m->next = NULL; | |
4744 | m->p_type = PT_INTERP; | |
4745 | m->count = 1; | |
4746 | m->sections[0] = s; | |
4747 | ||
4748 | *pm = m; | |
4749 | pm = &m->next; | |
252b5132 | 4750 | } |
8ded5a0f AM |
4751 | |
4752 | /* Look through the sections. We put sections in the same program | |
4753 | segment when the start of the second section can be placed within | |
4754 | a few bytes of the end of the first section. */ | |
4755 | last_hdr = NULL; | |
4756 | last_size = 0; | |
00bee008 | 4757 | hdr_index = 0; |
8ded5a0f | 4758 | writable = FALSE; |
2888249f | 4759 | executable = FALSE; |
8ded5a0f AM |
4760 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4761 | if (dynsec != NULL | |
4762 | && (dynsec->flags & SEC_LOAD) == 0) | |
4763 | dynsec = NULL; | |
4764 | ||
64029e93 AM |
4765 | if ((abfd->flags & D_PAGED) == 0) |
4766 | phdr_in_segment = FALSE; | |
4767 | ||
8ded5a0f AM |
4768 | /* Deal with -Ttext or something similar such that the first section |
4769 | is not adjacent to the program headers. This is an | |
4770 | approximation, since at this point we don't know exactly how many | |
4771 | program headers we will need. */ | |
64029e93 | 4772 | if (phdr_in_segment && count > 0) |
252b5132 | 4773 | { |
64029e93 AM |
4774 | bfd_vma phdr_lma; |
4775 | bfd_boolean separate_phdr = FALSE; | |
4776 | ||
4777 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4778 | if (info != NULL | |
4779 | && info->separate_code | |
4780 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4781 | { |
64029e93 AM |
4782 | /* If data sections should be separate from code and |
4783 | thus not executable, and the first section is | |
4784 | executable then put the file and program headers in | |
4785 | their own PT_LOAD. */ | |
4786 | separate_phdr = TRUE; | |
4787 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4788 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4789 | { | |
4790 | /* The file and program headers are currently on the | |
4791 | same page as the first section. Put them on the | |
4792 | previous page if we can. */ | |
4793 | if (phdr_lma >= maxpagesize) | |
4794 | phdr_lma -= maxpagesize; | |
4795 | else | |
4796 | separate_phdr = FALSE; | |
4797 | } | |
4798 | } | |
4799 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4800 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4801 | /* If file and program headers would be placed at the end | |
4802 | of memory then it's probably better to omit them. */ | |
4803 | phdr_in_segment = FALSE; | |
4804 | else if (phdr_lma < wrap_to) | |
4805 | /* If a section wraps around to where we'll be placing | |
4806 | file and program headers, then the headers will be | |
4807 | overwritten. */ | |
4808 | phdr_in_segment = FALSE; | |
4809 | else if (separate_phdr) | |
4810 | { | |
4811 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4812 | if (m == NULL) | |
4813 | goto error_return; | |
4814 | m->p_paddr = phdr_lma; | |
4815 | m->p_vaddr_offset | |
4816 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4817 | m->p_paddr_valid = 1; | |
4818 | *pm = m; | |
4819 | pm = &m->next; | |
4820 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4821 | } |
252b5132 RH |
4822 | } |
4823 | ||
8ded5a0f | 4824 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4825 | { |
8ded5a0f AM |
4826 | asection *hdr; |
4827 | bfd_boolean new_segment; | |
4828 | ||
4829 | hdr = *hdrpp; | |
4830 | ||
4831 | /* See if this section and the last one will fit in the same | |
4832 | segment. */ | |
4833 | ||
4834 | if (last_hdr == NULL) | |
4835 | { | |
4836 | /* If we don't have a segment yet, then we don't need a new | |
4837 | one (we build the last one after this loop). */ | |
4838 | new_segment = FALSE; | |
4839 | } | |
4840 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4841 | { | |
4842 | /* If this section has a different relation between the | |
4843 | virtual address and the load address, then we need a new | |
4844 | segment. */ | |
4845 | new_segment = TRUE; | |
4846 | } | |
b5599592 AM |
4847 | else if (hdr->lma < last_hdr->lma + last_size |
4848 | || last_hdr->lma + last_size < last_hdr->lma) | |
4849 | { | |
4850 | /* If this section has a load address that makes it overlap | |
4851 | the previous section, then we need a new segment. */ | |
4852 | new_segment = TRUE; | |
4853 | } | |
76cb3a89 AM |
4854 | else if ((abfd->flags & D_PAGED) != 0 |
4855 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4856 | == (hdr->lma & -maxpagesize))) | |
4857 | { | |
4858 | /* If we are demand paged then we can't map two disk | |
4859 | pages onto the same memory page. */ | |
4860 | new_segment = FALSE; | |
4861 | } | |
39948a60 NC |
4862 | /* In the next test we have to be careful when last_hdr->lma is close |
4863 | to the end of the address space. If the aligned address wraps | |
4864 | around to the start of the address space, then there are no more | |
4865 | pages left in memory and it is OK to assume that the current | |
4866 | section can be included in the current segment. */ | |
76cb3a89 AM |
4867 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4868 | + maxpagesize > last_hdr->lma) | |
4869 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4870 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4871 | { |
4872 | /* If putting this section in this segment would force us to | |
4873 | skip a page in the segment, then we need a new segment. */ | |
4874 | new_segment = TRUE; | |
4875 | } | |
4876 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4877 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4878 | { |
e5654c0f AM |
4879 | /* We don't want to put a loaded section after a |
4880 | nonloaded (ie. bss style) section in the same segment | |
4881 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4882 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4883 | new_segment = TRUE; |
4884 | } | |
4885 | else if ((abfd->flags & D_PAGED) == 0) | |
4886 | { | |
4887 | /* If the file is not demand paged, which means that we | |
4888 | don't require the sections to be correctly aligned in the | |
4889 | file, then there is no other reason for a new segment. */ | |
4890 | new_segment = FALSE; | |
4891 | } | |
2888249f L |
4892 | else if (info != NULL |
4893 | && info->separate_code | |
4894 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4895 | { | |
4896 | new_segment = TRUE; | |
4897 | } | |
8ded5a0f | 4898 | else if (! writable |
76cb3a89 | 4899 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4900 | { |
4901 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4902 | segment. */ |
8ded5a0f AM |
4903 | new_segment = TRUE; |
4904 | } | |
4905 | else | |
4906 | { | |
4907 | /* Otherwise, we can use the same segment. */ | |
4908 | new_segment = FALSE; | |
4909 | } | |
4910 | ||
2889e75b | 4911 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4912 | if (last_hdr != NULL |
4913 | && info != NULL | |
4914 | && info->callbacks->override_segment_assignment != NULL) | |
4915 | new_segment | |
4916 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4917 | last_hdr, | |
4918 | new_segment); | |
2889e75b | 4919 | |
8ded5a0f AM |
4920 | if (! new_segment) |
4921 | { | |
4922 | if ((hdr->flags & SEC_READONLY) == 0) | |
4923 | writable = TRUE; | |
2888249f L |
4924 | if ((hdr->flags & SEC_CODE) != 0) |
4925 | executable = TRUE; | |
8ded5a0f AM |
4926 | last_hdr = hdr; |
4927 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4928 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4929 | continue; |
4930 | } | |
4931 | ||
4932 | /* We need a new program segment. We must create a new program | |
00bee008 | 4933 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4934 | |
00bee008 | 4935 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4936 | if (m == NULL) |
4937 | goto error_return; | |
4938 | ||
4939 | *pm = m; | |
4940 | pm = &m->next; | |
4941 | ||
252b5132 | 4942 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4943 | writable = TRUE; |
8ded5a0f AM |
4944 | else |
4945 | writable = FALSE; | |
4946 | ||
2888249f L |
4947 | if ((hdr->flags & SEC_CODE) == 0) |
4948 | executable = FALSE; | |
4949 | else | |
4950 | executable = TRUE; | |
4951 | ||
baaff79e JJ |
4952 | last_hdr = hdr; |
4953 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4954 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
00bee008 | 4955 | hdr_index = i; |
8ded5a0f | 4956 | phdr_in_segment = FALSE; |
252b5132 RH |
4957 | } |
4958 | ||
86b2281f AM |
4959 | /* Create a final PT_LOAD program segment, but not if it's just |
4960 | for .tbss. */ | |
4961 | if (last_hdr != NULL | |
00bee008 | 4962 | && (i - hdr_index != 1 |
dbc88fc1 | 4963 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4964 | { |
00bee008 | 4965 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4966 | if (m == NULL) |
4967 | goto error_return; | |
252b5132 | 4968 | |
8ded5a0f AM |
4969 | *pm = m; |
4970 | pm = &m->next; | |
4971 | } | |
252b5132 | 4972 | |
8ded5a0f AM |
4973 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4974 | if (dynsec != NULL) | |
4975 | { | |
4976 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4977 | if (m == NULL) | |
4978 | goto error_return; | |
4979 | *pm = m; | |
4980 | pm = &m->next; | |
4981 | } | |
252b5132 | 4982 | |
23e463ed | 4983 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
4984 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
4985 | because if we link together nonloadable .note sections and | |
4986 | loadable .note sections, we will generate two .note sections | |
23e463ed | 4987 | in the output file. */ |
8ded5a0f AM |
4988 | for (s = abfd->sections; s != NULL; s = s->next) |
4989 | { | |
4990 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 4991 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4992 | { |
1c5265b5 | 4993 | asection *s2; |
23e463ed | 4994 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
4995 | |
4996 | count = 1; | |
23e463ed L |
4997 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
4998 | { | |
4999 | if (s2->next->alignment_power == alignment_power | |
5000 | && (s2->next->flags & SEC_LOAD) != 0 | |
5001 | && elf_section_type (s2->next) == SHT_NOTE | |
5002 | && align_power (s2->lma + s2->size, | |
5003 | alignment_power) | |
5004 | == s2->next->lma) | |
5005 | count++; | |
5006 | else | |
5007 | break; | |
5008 | } | |
00bee008 AM |
5009 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5010 | amt += count * sizeof (asection *); | |
a50b1753 | 5011 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5012 | if (m == NULL) |
5013 | goto error_return; | |
5014 | m->next = NULL; | |
5015 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5016 | m->count = count; |
5017 | while (count > 1) | |
5018 | { | |
5019 | m->sections[m->count - count--] = s; | |
5020 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5021 | s = s->next; | |
5022 | } | |
5023 | m->sections[m->count - 1] = s; | |
5024 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5025 | *pm = m; |
5026 | pm = &m->next; | |
5027 | } | |
5028 | if (s->flags & SEC_THREAD_LOCAL) | |
5029 | { | |
5030 | if (! tls_count) | |
5031 | first_tls = s; | |
5032 | tls_count++; | |
5033 | } | |
a91e1603 L |
5034 | if (first_mbind == NULL |
5035 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5036 | first_mbind = s; | |
8ded5a0f | 5037 | } |
252b5132 | 5038 | |
8ded5a0f AM |
5039 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5040 | if (tls_count > 0) | |
5041 | { | |
00bee008 AM |
5042 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5043 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5044 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5045 | if (m == NULL) |
5046 | goto error_return; | |
5047 | m->next = NULL; | |
5048 | m->p_type = PT_TLS; | |
5049 | m->count = tls_count; | |
5050 | /* Mandated PF_R. */ | |
5051 | m->p_flags = PF_R; | |
5052 | m->p_flags_valid = 1; | |
d923cae0 | 5053 | s = first_tls; |
446f7ed5 | 5054 | for (i = 0; i < tls_count; ++i) |
8ded5a0f | 5055 | { |
d923cae0 L |
5056 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5057 | { | |
5058 | _bfd_error_handler | |
871b3ab2 | 5059 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5060 | s = first_tls; |
5061 | i = 0; | |
446f7ed5 | 5062 | while (i < tls_count) |
d923cae0 L |
5063 | { |
5064 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5065 | { | |
871b3ab2 | 5066 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5067 | i++; |
5068 | } | |
5069 | else | |
871b3ab2 | 5070 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5071 | s = s->next; |
5072 | } | |
5073 | bfd_set_error (bfd_error_bad_value); | |
5074 | goto error_return; | |
5075 | } | |
5076 | m->sections[i] = s; | |
5077 | s = s->next; | |
8ded5a0f | 5078 | } |
252b5132 | 5079 | |
8ded5a0f AM |
5080 | *pm = m; |
5081 | pm = &m->next; | |
5082 | } | |
252b5132 | 5083 | |
df3a023b AM |
5084 | if (first_mbind |
5085 | && (abfd->flags & D_PAGED) != 0 | |
5086 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5087 | for (s = first_mbind; s != NULL; s = s->next) |
5088 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5089 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5090 | { |
5091 | /* Mandated PF_R. */ | |
5092 | unsigned long p_flags = PF_R; | |
5093 | if ((s->flags & SEC_READONLY) == 0) | |
5094 | p_flags |= PF_W; | |
5095 | if ((s->flags & SEC_CODE) != 0) | |
5096 | p_flags |= PF_X; | |
5097 | ||
5098 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5099 | m = bfd_zalloc (abfd, amt); | |
5100 | if (m == NULL) | |
5101 | goto error_return; | |
5102 | m->next = NULL; | |
5103 | m->p_type = (PT_GNU_MBIND_LO | |
5104 | + elf_section_data (s)->this_hdr.sh_info); | |
5105 | m->count = 1; | |
5106 | m->p_flags_valid = 1; | |
5107 | m->sections[0] = s; | |
5108 | m->p_flags = p_flags; | |
5109 | ||
5110 | *pm = m; | |
5111 | pm = &m->next; | |
5112 | } | |
5113 | ||
0a59decb L |
5114 | s = bfd_get_section_by_name (abfd, |
5115 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5116 | if (s != NULL && s->size != 0) | |
5117 | { | |
5118 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5119 | m = bfd_zalloc (abfd, amt); | |
5120 | if (m == NULL) | |
5121 | goto error_return; | |
5122 | m->next = NULL; | |
5123 | m->p_type = PT_GNU_PROPERTY; | |
5124 | m->count = 1; | |
5125 | m->p_flags_valid = 1; | |
5126 | m->sections[0] = s; | |
5127 | m->p_flags = PF_R; | |
5128 | *pm = m; | |
5129 | pm = &m->next; | |
5130 | } | |
5131 | ||
8ded5a0f AM |
5132 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5133 | segment. */ | |
12bd6957 | 5134 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5135 | if (eh_frame_hdr != NULL |
5136 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5137 | { |
dc810e39 | 5138 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5139 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5140 | if (m == NULL) |
5141 | goto error_return; | |
5142 | m->next = NULL; | |
8ded5a0f | 5143 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5144 | m->count = 1; |
8ded5a0f | 5145 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5146 | |
5147 | *pm = m; | |
5148 | pm = &m->next; | |
5149 | } | |
13ae64f3 | 5150 | |
12bd6957 | 5151 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5152 | { |
8ded5a0f | 5153 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5154 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5155 | if (m == NULL) |
5156 | goto error_return; | |
5157 | m->next = NULL; | |
2b05f1b7 | 5158 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5159 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5160 | m->p_align = bed->stack_align; |
8ded5a0f | 5161 | m->p_flags_valid = 1; |
04c3a755 NS |
5162 | m->p_align_valid = m->p_align != 0; |
5163 | if (info->stacksize > 0) | |
5164 | { | |
5165 | m->p_size = info->stacksize; | |
5166 | m->p_size_valid = 1; | |
5167 | } | |
252b5132 | 5168 | |
8ded5a0f AM |
5169 | *pm = m; |
5170 | pm = &m->next; | |
5171 | } | |
65765700 | 5172 | |
ceae84aa | 5173 | if (info != NULL && info->relro) |
8ded5a0f | 5174 | { |
f210dcff L |
5175 | for (m = mfirst; m != NULL; m = m->next) |
5176 | { | |
3832a4d8 AM |
5177 | if (m->p_type == PT_LOAD |
5178 | && m->count != 0 | |
5179 | && m->sections[0]->vma >= info->relro_start | |
5180 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5181 | { |
3832a4d8 AM |
5182 | i = m->count; |
5183 | while (--i != (unsigned) -1) | |
5184 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5185 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5186 | break; | |
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: | |
5221 | if (sections != NULL) | |
5222 | free (sections); | |
b34976b6 | 5223 | return FALSE; |
252b5132 RH |
5224 | } |
5225 | ||
5226 | /* Sort sections by address. */ | |
5227 | ||
5228 | static int | |
217aa764 | 5229 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5230 | { |
5231 | const asection *sec1 = *(const asection **) arg1; | |
5232 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5233 | bfd_size_type size1, size2; |
252b5132 RH |
5234 | |
5235 | /* Sort by LMA first, since this is the address used to | |
5236 | place the section into a segment. */ | |
5237 | if (sec1->lma < sec2->lma) | |
5238 | return -1; | |
5239 | else if (sec1->lma > sec2->lma) | |
5240 | return 1; | |
5241 | ||
5242 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5243 | the same, and this will do nothing. */ | |
5244 | if (sec1->vma < sec2->vma) | |
5245 | return -1; | |
5246 | else if (sec1->vma > sec2->vma) | |
5247 | return 1; | |
5248 | ||
5249 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5250 | ||
07c6e936 | 5251 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5252 | |
5253 | if (TOEND (sec1)) | |
5254 | { | |
48db3297 | 5255 | if (!TOEND (sec2)) |
252b5132 RH |
5256 | return 1; |
5257 | } | |
00a7cdc5 | 5258 | else if (TOEND (sec2)) |
252b5132 RH |
5259 | return -1; |
5260 | ||
5261 | #undef TOEND | |
5262 | ||
00a7cdc5 NC |
5263 | /* Sort by size, to put zero sized sections |
5264 | before others at the same address. */ | |
252b5132 | 5265 | |
eea6121a AM |
5266 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5267 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5268 | |
5269 | if (size1 < size2) | |
252b5132 | 5270 | return -1; |
eecdbe52 | 5271 | if (size1 > size2) |
252b5132 RH |
5272 | return 1; |
5273 | ||
5274 | return sec1->target_index - sec2->target_index; | |
5275 | } | |
5276 | ||
30fe1832 AM |
5277 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5278 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5279 | ||
5280 | static int | |
5281 | elf_sort_segments (const void *arg1, const void *arg2) | |
5282 | { | |
5283 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5284 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5285 | ||
5286 | if (m1->p_type != m2->p_type) | |
5287 | { | |
5288 | if (m1->p_type == PT_NULL) | |
5289 | return 1; | |
5290 | if (m2->p_type == PT_NULL) | |
5291 | return -1; | |
5292 | return m1->p_type < m2->p_type ? -1 : 1; | |
5293 | } | |
5294 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5295 | return m1->includes_filehdr ? -1 : 1; | |
5296 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5297 | return m1->no_sort_lma ? -1 : 1; | |
5298 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5299 | { | |
5300 | bfd_vma lma1, lma2; | |
5301 | lma1 = 0; | |
5302 | if (m1->p_paddr_valid) | |
5303 | lma1 = m1->p_paddr; | |
5304 | else if (m1->count != 0) | |
5305 | lma1 = m1->sections[0]->lma + m1->p_vaddr_offset; | |
5306 | lma2 = 0; | |
5307 | if (m2->p_paddr_valid) | |
5308 | lma2 = m2->p_paddr; | |
5309 | else if (m2->count != 0) | |
5310 | lma2 = m2->sections[0]->lma + m2->p_vaddr_offset; | |
5311 | if (lma1 != lma2) | |
5312 | return lma1 < lma2 ? -1 : 1; | |
5313 | } | |
5314 | if (m1->idx != m2->idx) | |
5315 | return m1->idx < m2->idx ? -1 : 1; | |
5316 | return 0; | |
5317 | } | |
5318 | ||
340b6d91 AC |
5319 | /* Ian Lance Taylor writes: |
5320 | ||
5321 | We shouldn't be using % with a negative signed number. That's just | |
5322 | not good. We have to make sure either that the number is not | |
5323 | negative, or that the number has an unsigned type. When the types | |
5324 | are all the same size they wind up as unsigned. When file_ptr is a | |
5325 | larger signed type, the arithmetic winds up as signed long long, | |
5326 | which is wrong. | |
5327 | ||
5328 | What we're trying to say here is something like ``increase OFF by | |
5329 | the least amount that will cause it to be equal to the VMA modulo | |
5330 | the page size.'' */ | |
5331 | /* In other words, something like: | |
5332 | ||
5333 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5334 | off_offset = off % bed->maxpagesize; | |
5335 | if (vma_offset < off_offset) | |
5336 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5337 | else | |
5338 | adjustment = vma_offset - off_offset; | |
08a40648 | 5339 | |
de194d85 | 5340 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5341 | |
5342 | static file_ptr | |
5343 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5344 | { | |
dc9155b2 NC |
5345 | /* PR binutils/16199: Handle an alignment of zero. */ |
5346 | if (maxpagesize == 0) | |
5347 | maxpagesize = 1; | |
340b6d91 AC |
5348 | return ((vma - off) % maxpagesize); |
5349 | } | |
5350 | ||
6d33f217 L |
5351 | static void |
5352 | print_segment_map (const struct elf_segment_map *m) | |
5353 | { | |
5354 | unsigned int j; | |
5355 | const char *pt = get_segment_type (m->p_type); | |
5356 | char buf[32]; | |
5357 | ||
5358 | if (pt == NULL) | |
5359 | { | |
5360 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5361 | sprintf (buf, "LOPROC+%7.7x", | |
5362 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5363 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5364 | sprintf (buf, "LOOS+%7.7x", | |
5365 | (unsigned int) (m->p_type - PT_LOOS)); | |
5366 | else | |
5367 | snprintf (buf, sizeof (buf), "%8.8x", | |
5368 | (unsigned int) m->p_type); | |
5369 | pt = buf; | |
5370 | } | |
4a97a0e5 | 5371 | fflush (stdout); |
6d33f217 L |
5372 | fprintf (stderr, "%s:", pt); |
5373 | for (j = 0; j < m->count; j++) | |
5374 | fprintf (stderr, " %s", m->sections [j]->name); | |
5375 | putc ('\n',stderr); | |
4a97a0e5 | 5376 | fflush (stderr); |
6d33f217 L |
5377 | } |
5378 | ||
32812159 AM |
5379 | static bfd_boolean |
5380 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5381 | { | |
5382 | void *buf; | |
5383 | bfd_boolean ret; | |
5384 | ||
5385 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5386 | return FALSE; | |
5387 | buf = bfd_zmalloc (len); | |
5388 | if (buf == NULL) | |
5389 | return FALSE; | |
5390 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5391 | free (buf); | |
5392 | return ret; | |
5393 | } | |
5394 | ||
252b5132 RH |
5395 | /* Assign file positions to the sections based on the mapping from |
5396 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5397 | the file header. */ |
252b5132 | 5398 | |
b34976b6 | 5399 | static bfd_boolean |
f3520d2f AM |
5400 | assign_file_positions_for_load_sections (bfd *abfd, |
5401 | struct bfd_link_info *link_info) | |
252b5132 RH |
5402 | { |
5403 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5404 | struct elf_segment_map *m; |
30fe1832 | 5405 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5406 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5407 | Elf_Internal_Phdr *p; |
02bf8d82 | 5408 | file_ptr off; |
3f570048 | 5409 | bfd_size_type maxpagesize; |
30fe1832 | 5410 | unsigned int alloc, actual; |
0920dee7 | 5411 | unsigned int i, j; |
30fe1832 | 5412 | struct elf_segment_map **sorted_seg_map; |
252b5132 | 5413 | |
e36284ab | 5414 | if (link_info == NULL |
ceae84aa | 5415 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5416 | return FALSE; |
252b5132 | 5417 | |
8ded5a0f | 5418 | alloc = 0; |
12bd6957 | 5419 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5420 | m->idx = alloc++; |
252b5132 | 5421 | |
82f2dbf7 NC |
5422 | if (alloc) |
5423 | { | |
5424 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5425 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5426 | } | |
5427 | else | |
5428 | { | |
5429 | /* PR binutils/12467. */ | |
5430 | elf_elfheader (abfd)->e_phoff = 0; | |
5431 | elf_elfheader (abfd)->e_phentsize = 0; | |
5432 | } | |
d324f6d6 | 5433 | |
8ded5a0f | 5434 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5435 | |
12bd6957 | 5436 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5437 | { |
5438 | actual = alloc; | |
5439 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5440 | } | |
8ded5a0f | 5441 | else |
30fe1832 AM |
5442 | { |
5443 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5444 | BFD_ASSERT (elf_program_header_size (abfd) | |
5445 | == actual * bed->s->sizeof_phdr); | |
5446 | BFD_ASSERT (actual >= alloc); | |
5447 | } | |
252b5132 RH |
5448 | |
5449 | if (alloc == 0) | |
f3520d2f | 5450 | { |
12bd6957 | 5451 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5452 | return TRUE; |
f3520d2f | 5453 | } |
252b5132 | 5454 | |
12bd6957 | 5455 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5456 | see assign_file_positions_except_relocs, so make sure we have |
5457 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5458 | The variable alloc contains the computed need, while |
5459 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5460 | layout. |
5461 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5462 | where the layout is forced to according to a larger size in the | |
5463 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5464 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5465 | + alloc * sizeof (*sorted_seg_map))); | |
5466 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5467 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5468 | if (phdrs == NULL) |
b34976b6 | 5469 | return FALSE; |
252b5132 | 5470 | |
30fe1832 | 5471 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5472 | { |
30fe1832 | 5473 | sorted_seg_map[j] = m; |
252b5132 | 5474 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5475 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5476 | not be done to the PT_NOTE section of a corefile, which may |
5477 | contain several pseudo-sections artificially created by bfd. | |
5478 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5479 | if (m->count > 1 |
5480 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5481 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5482 | { |
5483 | for (i = 0; i < m->count; i++) | |
5484 | m->sections[i]->target_index = i; | |
5485 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5486 | elf_sort_sections); | |
5487 | } | |
30fe1832 AM |
5488 | } |
5489 | if (alloc > 1) | |
5490 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5491 | elf_sort_segments); | |
5492 | ||
5493 | maxpagesize = 1; | |
5494 | if ((abfd->flags & D_PAGED) != 0) | |
5495 | maxpagesize = bed->maxpagesize; | |
5496 | ||
5497 | /* Sections must map to file offsets past the ELF file header. */ | |
5498 | off = bed->s->sizeof_ehdr; | |
5499 | /* And if one of the PT_LOAD headers doesn't include the program | |
5500 | headers then we'll be mapping program headers in the usual | |
5501 | position after the ELF file header. */ | |
5502 | phdr_load_seg = NULL; | |
5503 | for (j = 0; j < alloc; j++) | |
5504 | { | |
5505 | m = sorted_seg_map[j]; | |
5506 | if (m->p_type != PT_LOAD) | |
5507 | break; | |
5508 | if (m->includes_phdrs) | |
5509 | { | |
5510 | phdr_load_seg = m; | |
5511 | break; | |
5512 | } | |
5513 | } | |
5514 | if (phdr_load_seg == NULL) | |
5515 | off += actual * bed->s->sizeof_phdr; | |
5516 | ||
5517 | for (j = 0; j < alloc; j++) | |
5518 | { | |
5519 | asection **secpp; | |
5520 | bfd_vma off_adjust; | |
5521 | bfd_boolean no_contents; | |
252b5132 | 5522 | |
b301b248 AM |
5523 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5524 | number of sections with contents contributing to both p_filesz | |
5525 | and p_memsz, followed by a number of sections with no contents | |
5526 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5527 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5528 | m = sorted_seg_map[j]; |
5529 | p = phdrs + m->idx; | |
252b5132 | 5530 | p->p_type = m->p_type; |
28a7f3e7 | 5531 | p->p_flags = m->p_flags; |
252b5132 | 5532 | |
3f570048 | 5533 | if (m->count == 0) |
5d695627 | 5534 | p->p_vaddr = m->p_vaddr_offset; |
3f570048 | 5535 | else |
5d695627 | 5536 | p->p_vaddr = m->sections[0]->vma + m->p_vaddr_offset; |
3f570048 AM |
5537 | |
5538 | if (m->p_paddr_valid) | |
5539 | p->p_paddr = m->p_paddr; | |
5540 | else if (m->count == 0) | |
5541 | p->p_paddr = 0; | |
5542 | else | |
5d695627 | 5543 | p->p_paddr = m->sections[0]->lma + m->p_vaddr_offset; |
3f570048 AM |
5544 | |
5545 | if (p->p_type == PT_LOAD | |
5546 | && (abfd->flags & D_PAGED) != 0) | |
5547 | { | |
5548 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5549 | the maximum page size. When copying an executable with | |
5550 | objcopy, we set m->p_align from the input file. Use this | |
5551 | value for maxpagesize rather than bed->maxpagesize, which | |
5552 | may be different. Note that we use maxpagesize for PT_TLS | |
5553 | segment alignment later in this function, so we are relying | |
5554 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5555 | segment. */ | |
5556 | if (m->p_align_valid) | |
5557 | maxpagesize = m->p_align; | |
5558 | ||
5559 | p->p_align = maxpagesize; | |
5560 | } | |
3271a814 NS |
5561 | else if (m->p_align_valid) |
5562 | p->p_align = m->p_align; | |
e970b90a DJ |
5563 | else if (m->count == 0) |
5564 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5565 | |
5566 | if (m == phdr_load_seg) | |
5567 | { | |
5568 | if (!m->includes_filehdr) | |
5569 | p->p_offset = off; | |
5570 | off += actual * bed->s->sizeof_phdr; | |
5571 | } | |
3f570048 | 5572 | |
bf988460 AM |
5573 | no_contents = FALSE; |
5574 | off_adjust = 0; | |
252b5132 | 5575 | if (p->p_type == PT_LOAD |
b301b248 | 5576 | && m->count > 0) |
252b5132 | 5577 | { |
b301b248 | 5578 | bfd_size_type align; |
a49e53ed | 5579 | unsigned int align_power = 0; |
b301b248 | 5580 | |
3271a814 NS |
5581 | if (m->p_align_valid) |
5582 | align = p->p_align; | |
5583 | else | |
252b5132 | 5584 | { |
3271a814 NS |
5585 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5586 | { | |
5587 | unsigned int secalign; | |
08a40648 | 5588 | |
fd361982 | 5589 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5590 | if (secalign > align_power) |
5591 | align_power = secalign; | |
5592 | } | |
5593 | align = (bfd_size_type) 1 << align_power; | |
5594 | if (align < maxpagesize) | |
5595 | align = maxpagesize; | |
b301b248 | 5596 | } |
252b5132 | 5597 | |
02bf8d82 AM |
5598 | for (i = 0; i < m->count; i++) |
5599 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5600 | /* If we aren't making room for this section, then | |
5601 | it must be SHT_NOBITS regardless of what we've | |
5602 | set via struct bfd_elf_special_section. */ | |
5603 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5604 | ||
bf988460 | 5605 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5606 | sections. */ |
5607 | no_contents = TRUE; | |
5608 | for (i = 0; i < m->count; i++) | |
5609 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5610 | { | |
5611 | no_contents = FALSE; | |
5612 | break; | |
5613 | } | |
bf988460 | 5614 | |
85cfcbfb | 5615 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5616 | |
5617 | /* Broken hardware and/or kernel require that files do not | |
5618 | map the same page with different permissions on some hppa | |
5619 | processors. */ | |
30fe1832 AM |
5620 | if (j != 0 |
5621 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5622 | && bed->no_page_alias |
5623 | && (off & (maxpagesize - 1)) != 0 | |
5624 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5625 | off_adjust += maxpagesize; | |
bf988460 AM |
5626 | off += off_adjust; |
5627 | if (no_contents) | |
5628 | { | |
5629 | /* We shouldn't need to align the segment on disk since | |
5630 | the segment doesn't need file space, but the gABI | |
5631 | arguably requires the alignment and glibc ld.so | |
5632 | checks it. So to comply with the alignment | |
5633 | requirement but not waste file space, we adjust | |
5634 | p_offset for just this segment. (OFF_ADJUST is | |
5635 | subtracted from OFF later.) This may put p_offset | |
5636 | past the end of file, but that shouldn't matter. */ | |
5637 | } | |
5638 | else | |
5639 | off_adjust = 0; | |
252b5132 | 5640 | } |
b1a6d0b1 NC |
5641 | /* Make sure the .dynamic section is the first section in the |
5642 | PT_DYNAMIC segment. */ | |
5643 | else if (p->p_type == PT_DYNAMIC | |
5644 | && m->count > 1 | |
5645 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5646 | { | |
5647 | _bfd_error_handler | |
871b3ab2 | 5648 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5649 | " is not the .dynamic section"), |
b301b248 | 5650 | abfd); |
b1a6d0b1 NC |
5651 | bfd_set_error (bfd_error_bad_value); |
5652 | return FALSE; | |
5653 | } | |
3f001e84 JK |
5654 | /* Set the note section type to SHT_NOTE. */ |
5655 | else if (p->p_type == PT_NOTE) | |
5656 | for (i = 0; i < m->count; i++) | |
5657 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5658 | |
252b5132 RH |
5659 | if (m->includes_filehdr) |
5660 | { | |
bf988460 | 5661 | if (!m->p_flags_valid) |
252b5132 | 5662 | p->p_flags |= PF_R; |
252b5132 RH |
5663 | p->p_filesz = bed->s->sizeof_ehdr; |
5664 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5665 | if (p->p_type == PT_LOAD) |
252b5132 | 5666 | { |
30fe1832 | 5667 | if (m->count > 0) |
252b5132 | 5668 | { |
30fe1832 AM |
5669 | if (p->p_vaddr < (bfd_vma) off |
5670 | || (!m->p_paddr_valid | |
5671 | && p->p_paddr < (bfd_vma) off)) | |
5672 | { | |
5673 | _bfd_error_handler | |
5674 | (_("%pB: not enough room for program headers," | |
5675 | " try linking with -N"), | |
5676 | abfd); | |
5677 | bfd_set_error (bfd_error_bad_value); | |
5678 | return FALSE; | |
5679 | } | |
5680 | p->p_vaddr -= off; | |
5681 | if (!m->p_paddr_valid) | |
5682 | p->p_paddr -= off; | |
252b5132 | 5683 | } |
30fe1832 AM |
5684 | } |
5685 | else if (sorted_seg_map[0]->includes_filehdr) | |
5686 | { | |
5687 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5688 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5689 | if (!m->p_paddr_valid) |
30fe1832 | 5690 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5691 | } |
252b5132 RH |
5692 | } |
5693 | ||
5694 | if (m->includes_phdrs) | |
5695 | { | |
bf988460 | 5696 | if (!m->p_flags_valid) |
252b5132 | 5697 | p->p_flags |= PF_R; |
30fe1832 AM |
5698 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5699 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5700 | if (!m->includes_filehdr) |
252b5132 | 5701 | { |
30fe1832 | 5702 | if (p->p_type == PT_LOAD) |
252b5132 | 5703 | { |
30fe1832 AM |
5704 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5705 | if (m->count > 0) | |
5706 | { | |
5707 | p->p_vaddr -= off - p->p_offset; | |
5708 | if (!m->p_paddr_valid) | |
5709 | p->p_paddr -= off - p->p_offset; | |
5710 | } | |
5711 | } | |
5712 | else if (phdr_load_seg != NULL) | |
5713 | { | |
5714 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
5715 | bfd_vma phdr_off = 0; | |
5716 | if (phdr_load_seg->includes_filehdr) | |
5717 | phdr_off = bed->s->sizeof_ehdr; | |
5718 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5719 | if (!m->p_paddr_valid) |
30fe1832 AM |
5720 | p->p_paddr = phdr->p_paddr + phdr_off; |
5721 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5722 | } |
30fe1832 AM |
5723 | else |
5724 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5725 | } |
252b5132 RH |
5726 | } |
5727 | ||
5728 | if (p->p_type == PT_LOAD | |
5729 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5730 | { | |
bf988460 | 5731 | if (!m->includes_filehdr && !m->includes_phdrs) |
0bc3450e AM |
5732 | { |
5733 | p->p_offset = off; | |
5734 | if (no_contents) | |
67641dd3 AM |
5735 | { |
5736 | /* Put meaningless p_offset for PT_LOAD segments | |
5737 | without file contents somewhere within the first | |
5738 | page, in an attempt to not point past EOF. */ | |
5739 | bfd_size_type align = maxpagesize; | |
5740 | if (align < p->p_align) | |
5741 | align = p->p_align; | |
5742 | if (align < 1) | |
5743 | align = 1; | |
5744 | p->p_offset = off % align; | |
5745 | } | |
0bc3450e | 5746 | } |
252b5132 RH |
5747 | else |
5748 | { | |
5749 | file_ptr adjust; | |
5750 | ||
5751 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5752 | if (!no_contents) |
5753 | p->p_filesz += adjust; | |
252b5132 RH |
5754 | p->p_memsz += adjust; |
5755 | } | |
5756 | } | |
5757 | ||
1ea63fd2 AM |
5758 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5759 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5760 | core files, for sections in PT_NOTE segments. | |
5761 | assign_file_positions_for_non_load_sections will set filepos | |
5762 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5763 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5764 | { | |
5765 | asection *sec; | |
252b5132 | 5766 | bfd_size_type align; |
627b32bc | 5767 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5768 | |
5769 | sec = *secpp; | |
02bf8d82 | 5770 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5771 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5772 | |
88967714 AM |
5773 | if ((p->p_type == PT_LOAD |
5774 | || p->p_type == PT_TLS) | |
5775 | && (this_hdr->sh_type != SHT_NOBITS | |
5776 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5777 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5778 | || p->p_type == PT_TLS)))) | |
252b5132 | 5779 | { |
b5599592 AM |
5780 | bfd_vma p_start = p->p_paddr; |
5781 | bfd_vma p_end = p_start + p->p_memsz; | |
5782 | bfd_vma s_start = sec->lma; | |
5783 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5784 | |
a2d1e028 L |
5785 | if (adjust != 0 |
5786 | && (s_start < p_end | |
5787 | || p_end < p_start)) | |
252b5132 | 5788 | { |
4eca0228 | 5789 | _bfd_error_handler |
695344c0 | 5790 | /* xgettext:c-format */ |
2dcf00ce AM |
5791 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5792 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5793 | adjust = 0; |
b5599592 | 5794 | sec->lma = p_end; |
1cfb7d1e | 5795 | } |
3ac9b6c9 | 5796 | p->p_memsz += adjust; |
1cfb7d1e | 5797 | |
88967714 AM |
5798 | if (this_hdr->sh_type != SHT_NOBITS) |
5799 | { | |
30fe1832 | 5800 | if (p->p_type == PT_LOAD) |
32812159 | 5801 | { |
30fe1832 AM |
5802 | if (p->p_filesz + adjust < p->p_memsz) |
5803 | { | |
5804 | /* We have a PROGBITS section following NOBITS ones. | |
5805 | Allocate file space for the NOBITS section(s) and | |
5806 | zero it. */ | |
5807 | adjust = p->p_memsz - p->p_filesz; | |
5808 | if (!write_zeros (abfd, off, adjust)) | |
5809 | return FALSE; | |
5810 | } | |
5811 | off += adjust; | |
32812159 | 5812 | } |
88967714 | 5813 | p->p_filesz += adjust; |
252b5132 | 5814 | } |
252b5132 RH |
5815 | } |
5816 | ||
5817 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5818 | { | |
b301b248 AM |
5819 | /* The section at i == 0 is the one that actually contains |
5820 | everything. */ | |
4a938328 MS |
5821 | if (i == 0) |
5822 | { | |
627b32bc | 5823 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5824 | off += this_hdr->sh_size; |
5825 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5826 | p->p_memsz = 0; |
5827 | p->p_align = 1; | |
252b5132 | 5828 | } |
4a938328 | 5829 | else |
252b5132 | 5830 | { |
b301b248 | 5831 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5832 | sec->filepos = 0; |
eea6121a | 5833 | sec->size = 0; |
b301b248 AM |
5834 | sec->flags = 0; |
5835 | continue; | |
252b5132 | 5836 | } |
252b5132 RH |
5837 | } |
5838 | else | |
5839 | { | |
1e951488 | 5840 | if (p->p_type == PT_LOAD) |
b301b248 | 5841 | { |
1e951488 AM |
5842 | this_hdr->sh_offset = sec->filepos = off; |
5843 | if (this_hdr->sh_type != SHT_NOBITS) | |
5844 | off += this_hdr->sh_size; | |
5845 | } | |
5846 | else if (this_hdr->sh_type == SHT_NOBITS | |
5847 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5848 | && this_hdr->sh_offset == 0) | |
5849 | { | |
5850 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5851 | (See _bfd_elf_map_sections_to_segments "Create a | |
5852 | final PT_LOAD".) Set sh_offset to the value it | |
5853 | would have if we had created a zero p_filesz and | |
5854 | p_memsz PT_LOAD header for the section. This | |
5855 | also makes the PT_TLS header have the same | |
5856 | p_offset value. */ | |
5857 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5858 | off, align); | |
5859 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5860 | } |
252b5132 | 5861 | |
02bf8d82 | 5862 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5863 | { |
6a3cd2b4 | 5864 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5865 | /* A load section without SHF_ALLOC is something like |
5866 | a note section in a PT_NOTE segment. These take | |
5867 | file space but are not loaded into memory. */ | |
5868 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5869 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5870 | } |
6a3cd2b4 | 5871 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5872 | { |
6a3cd2b4 AM |
5873 | if (p->p_type == PT_TLS) |
5874 | p->p_memsz += this_hdr->sh_size; | |
5875 | ||
5876 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5877 | normal segments. */ | |
5878 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5879 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5880 | } |
5881 | ||
b10a8ae0 L |
5882 | if (align > p->p_align |
5883 | && !m->p_align_valid | |
5884 | && (p->p_type != PT_LOAD | |
5885 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5886 | p->p_align = align; |
5887 | } | |
5888 | ||
bf988460 | 5889 | if (!m->p_flags_valid) |
252b5132 RH |
5890 | { |
5891 | p->p_flags |= PF_R; | |
02bf8d82 | 5892 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5893 | p->p_flags |= PF_X; |
02bf8d82 | 5894 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5895 | p->p_flags |= PF_W; |
5896 | } | |
5897 | } | |
43a8475c | 5898 | |
bf988460 | 5899 | off -= off_adjust; |
0920dee7 | 5900 | |
30fe1832 AM |
5901 | /* PR ld/20815 - Check that the program header segment, if |
5902 | present, will be loaded into memory. */ | |
5903 | if (p->p_type == PT_PHDR | |
5904 | && phdr_load_seg == NULL | |
5905 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5906 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5907 | { | |
5908 | /* The fix for this error is usually to edit the linker script being | |
5909 | used and set up the program headers manually. Either that or | |
5910 | leave room for the headers at the start of the SECTIONS. */ | |
5911 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5912 | " by LOAD segment"), | |
5913 | abfd); | |
7b3c2715 AM |
5914 | if (link_info == NULL) |
5915 | return FALSE; | |
5916 | /* Arrange for the linker to exit with an error, deleting | |
5917 | the output file unless --noinhibit-exec is given. */ | |
5918 | link_info->callbacks->info ("%X"); | |
30fe1832 AM |
5919 | } |
5920 | ||
7c928300 AM |
5921 | /* Check that all sections are in a PT_LOAD segment. |
5922 | Don't check funky gdb generated core files. */ | |
5923 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5924 | { |
5925 | bfd_boolean check_vma = TRUE; | |
5926 | ||
5927 | for (i = 1; i < m->count; i++) | |
5928 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5929 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5930 | ->this_hdr), p) != 0 | |
5931 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5932 | ->this_hdr), p) != 0) | |
0920dee7 | 5933 | { |
9a83a553 AM |
5934 | /* Looks like we have overlays packed into the segment. */ |
5935 | check_vma = FALSE; | |
5936 | break; | |
0920dee7 | 5937 | } |
9a83a553 AM |
5938 | |
5939 | for (i = 0; i < m->count; i++) | |
5940 | { | |
5941 | Elf_Internal_Shdr *this_hdr; | |
5942 | asection *sec; | |
5943 | ||
5944 | sec = m->sections[i]; | |
5945 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5946 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5947 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5948 | { |
4eca0228 | 5949 | _bfd_error_handler |
695344c0 | 5950 | /* xgettext:c-format */ |
871b3ab2 | 5951 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5952 | abfd, sec, j); |
5953 | print_segment_map (m); | |
5954 | } | |
5955 | } | |
5956 | } | |
252b5132 RH |
5957 | } |
5958 | ||
12bd6957 | 5959 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
5960 | |
5961 | if (link_info != NULL | |
5962 | && phdr_load_seg != NULL | |
5963 | && phdr_load_seg->includes_filehdr) | |
5964 | { | |
5965 | /* There is a segment that contains both the file headers and the | |
5966 | program headers, so provide a symbol __ehdr_start pointing there. | |
5967 | A program can use this to examine itself robustly. */ | |
5968 | ||
5969 | struct elf_link_hash_entry *hash | |
5970 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5971 | FALSE, FALSE, TRUE); | |
5972 | /* If the symbol was referenced and not defined, define it. */ | |
5973 | if (hash != NULL | |
5974 | && (hash->root.type == bfd_link_hash_new | |
5975 | || hash->root.type == bfd_link_hash_undefined | |
5976 | || hash->root.type == bfd_link_hash_undefweak | |
5977 | || hash->root.type == bfd_link_hash_common)) | |
5978 | { | |
5979 | asection *s = NULL; | |
5980 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr; | |
5981 | ||
5982 | if (phdr_load_seg->count != 0) | |
5983 | /* The segment contains sections, so use the first one. */ | |
5984 | s = phdr_load_seg->sections[0]; | |
5985 | else | |
5986 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
5987 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
5988 | if (m->p_type == PT_LOAD && m->count != 0) | |
5989 | { | |
5990 | s = m->sections[0]; | |
5991 | break; | |
5992 | } | |
5993 | ||
5994 | if (s != NULL) | |
5995 | { | |
5996 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
5997 | hash->root.u.def.section = s; | |
5998 | } | |
5999 | else | |
6000 | { | |
6001 | hash->root.u.def.value = filehdr_vaddr; | |
6002 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6003 | } | |
6004 | ||
6005 | hash->root.type = bfd_link_hash_defined; | |
6006 | hash->def_regular = 1; | |
6007 | hash->non_elf = 0; | |
6008 | } | |
6009 | } | |
6010 | ||
f3520d2f AM |
6011 | return TRUE; |
6012 | } | |
6013 | ||
1faa385f NC |
6014 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6015 | is no defined method for detecting such files, so we have to | |
6016 | use heuristics instead. */ | |
6017 | ||
6018 | bfd_boolean | |
6019 | is_debuginfo_file (bfd *abfd) | |
6020 | { | |
6021 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
6022 | return FALSE; | |
6023 | ||
6024 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6025 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6026 | Elf_Internal_Shdr **headerp; | |
6027 | ||
6028 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6029 | { | |
6030 | Elf_Internal_Shdr *header = * headerp; | |
6031 | ||
6032 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6033 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6034 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6035 | && header->sh_type != SHT_NOBITS | |
6036 | && header->sh_type != SHT_NOTE) | |
6037 | return FALSE; | |
6038 | } | |
6039 | ||
6040 | return TRUE; | |
6041 | } | |
6042 | ||
1ff6de03 NA |
6043 | /* Assign file positions for the other sections, except for compressed debugging |
6044 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f AM |
6045 | |
6046 | static bfd_boolean | |
6047 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
6048 | struct bfd_link_info *link_info) | |
6049 | { | |
6050 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6051 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6052 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6053 | Elf_Internal_Phdr *phdrs; |
6054 | Elf_Internal_Phdr *p; | |
6055 | struct elf_segment_map *m; | |
f3520d2f | 6056 | file_ptr off; |
f3520d2f | 6057 | |
5c182d5f | 6058 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6059 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6060 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6061 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6062 | { |
5c182d5f AM |
6063 | Elf_Internal_Shdr *hdr; |
6064 | ||
6065 | hdr = *hdrpp; | |
6066 | if (hdr->bfd_section != NULL | |
252e386e AM |
6067 | && (hdr->bfd_section->filepos != 0 |
6068 | || (hdr->sh_type == SHT_NOBITS | |
6069 | && hdr->contents == NULL))) | |
627b32bc | 6070 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6071 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6072 | { | |
1faa385f NC |
6073 | if (hdr->sh_size != 0 |
6074 | /* PR 24717 - debuginfo files are known to be not strictly | |
6075 | compliant with the ELF standard. In particular they often | |
6076 | have .note.gnu.property sections that are outside of any | |
6077 | loadable segment. This is not a problem for such files, | |
6078 | so do not warn about them. */ | |
6079 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6080 | _bfd_error_handler |
695344c0 | 6081 | /* xgettext:c-format */ |
871b3ab2 | 6082 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6083 | abfd, |
6084 | (hdr->bfd_section == NULL | |
6085 | ? "*unknown*" | |
6086 | : hdr->bfd_section->name)); | |
3ba71138 L |
6087 | /* We don't need to page align empty sections. */ |
6088 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
6089 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
6090 | bed->maxpagesize); | |
6091 | else | |
6092 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
6093 | hdr->sh_addralign); | |
6094 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
6095 | FALSE); | |
6096 | } | |
6097 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6098 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6099 | /* We don't know the offset of these sections yet: their size has |
6100 | not been decided. */ | |
0ce398f1 | 6101 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6102 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6103 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6104 | && abfd->is_linker_output))) | |
12bd6957 | 6105 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6106 | || (elf_symtab_shndx_list (abfd) != NULL |
6107 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6108 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6109 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6110 | hdr->sh_offset = -1; |
6111 | else | |
6112 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f | 6113 | } |
30fe1832 | 6114 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6115 | |
252b5132 RH |
6116 | /* Now that we have set the section file positions, we can set up |
6117 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6118 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6119 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6120 | { |
129af99f | 6121 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6122 | { |
f2731e0c | 6123 | bfd_vma start, end; |
01f7e10c | 6124 | bfd_boolean ok; |
1ea63fd2 | 6125 | |
129af99f | 6126 | if (link_info != NULL) |
8c37241b | 6127 | { |
129af99f | 6128 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6129 | in link_info. Note that there may be padding between |
6130 | relro_start and the first RELRO section. */ | |
6131 | start = link_info->relro_start; | |
6132 | end = link_info->relro_end; | |
6133 | } | |
6134 | else if (m->count != 0) | |
6135 | { | |
6136 | if (!m->p_size_valid) | |
6137 | abort (); | |
6138 | start = m->sections[0]->vma; | |
6139 | end = start + m->p_size; | |
6140 | } | |
6141 | else | |
6142 | { | |
6143 | start = 0; | |
6144 | end = 0; | |
6145 | } | |
6146 | ||
01f7e10c | 6147 | ok = FALSE; |
f2731e0c AM |
6148 | if (start < end) |
6149 | { | |
6150 | struct elf_segment_map *lm; | |
6151 | const Elf_Internal_Phdr *lp; | |
6152 | unsigned int i; | |
6153 | ||
6154 | /* Find a LOAD segment containing a section in the RELRO | |
6155 | segment. */ | |
12bd6957 | 6156 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6157 | lm != NULL; |
6158 | lm = lm->next, lp++) | |
8c37241b JJ |
6159 | { |
6160 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6161 | && lm->count != 0 |
dbc88fc1 AM |
6162 | && (lm->sections[lm->count - 1]->vma |
6163 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
6164 | ? lm->sections[lm->count - 1]->size | |
6165 | : 0)) > start | |
f2731e0c | 6166 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6167 | break; |
6168 | } | |
f2731e0c | 6169 | |
01f7e10c | 6170 | if (lm != NULL) |
129af99f | 6171 | { |
01f7e10c AM |
6172 | /* Find the section starting the RELRO segment. */ |
6173 | for (i = 0; i < lm->count; i++) | |
6174 | { | |
6175 | asection *s = lm->sections[i]; | |
6176 | if (s->vma >= start | |
6177 | && s->vma < end | |
6178 | && s->size != 0) | |
6179 | break; | |
6180 | } | |
6181 | ||
6182 | if (i < lm->count) | |
6183 | { | |
6184 | p->p_vaddr = lm->sections[i]->vma; | |
6185 | p->p_paddr = lm->sections[i]->lma; | |
6186 | p->p_offset = lm->sections[i]->filepos; | |
6187 | p->p_memsz = end - p->p_vaddr; | |
6188 | p->p_filesz = p->p_memsz; | |
6189 | ||
6190 | /* The RELRO segment typically ends a few bytes | |
6191 | into .got.plt but other layouts are possible. | |
6192 | In cases where the end does not match any | |
6193 | loaded section (for instance is in file | |
6194 | padding), trim p_filesz back to correspond to | |
6195 | the end of loaded section contents. */ | |
6196 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6197 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6198 | ||
6199 | /* Preserve the alignment and flags if they are | |
6200 | valid. The gold linker generates RW/4 for | |
6201 | the PT_GNU_RELRO section. It is better for | |
6202 | objcopy/strip to honor these attributes | |
6203 | otherwise gdb will choke when using separate | |
6204 | debug files. */ | |
6205 | if (!m->p_align_valid) | |
6206 | p->p_align = 1; | |
6207 | if (!m->p_flags_valid) | |
6208 | p->p_flags = PF_R; | |
6209 | ok = TRUE; | |
6210 | } | |
129af99f | 6211 | } |
b84a33b5 | 6212 | } |
01f7e10c AM |
6213 | if (link_info != NULL) |
6214 | BFD_ASSERT (ok); | |
6215 | if (!ok) | |
6216 | memset (p, 0, sizeof *p); | |
129af99f | 6217 | } |
04c3a755 NS |
6218 | else if (p->p_type == PT_GNU_STACK) |
6219 | { | |
6220 | if (m->p_size_valid) | |
6221 | p->p_memsz = m->p_size; | |
6222 | } | |
129af99f AS |
6223 | else if (m->count != 0) |
6224 | { | |
e06efbf1 | 6225 | unsigned int i; |
1a9ccd70 | 6226 | |
129af99f AS |
6227 | if (p->p_type != PT_LOAD |
6228 | && (p->p_type != PT_NOTE | |
6229 | || bfd_get_format (abfd) != bfd_core)) | |
6230 | { | |
1a9ccd70 NC |
6231 | /* A user specified segment layout may include a PHDR |
6232 | segment that overlaps with a LOAD segment... */ | |
6233 | if (p->p_type == PT_PHDR) | |
6234 | { | |
6235 | m->count = 0; | |
6236 | continue; | |
6237 | } | |
6238 | ||
c86934ce NC |
6239 | if (m->includes_filehdr || m->includes_phdrs) |
6240 | { | |
b1fa9dd6 | 6241 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6242 | _bfd_error_handler |
871b3ab2 | 6243 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6244 | "and/or program header"), |
6245 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6246 | return FALSE; |
6247 | } | |
129af99f | 6248 | |
86b2281f | 6249 | p->p_filesz = 0; |
129af99f | 6250 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6251 | for (i = m->count; i-- != 0;) |
6252 | { | |
6253 | asection *sect = m->sections[i]; | |
6254 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6255 | if (hdr->sh_type != SHT_NOBITS) | |
6256 | { | |
6257 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6258 | + hdr->sh_size); | |
6259 | break; | |
6260 | } | |
6261 | } | |
129af99f AS |
6262 | } |
6263 | } | |
252b5132 RH |
6264 | } |
6265 | ||
b34976b6 | 6266 | return TRUE; |
252b5132 RH |
6267 | } |
6268 | ||
6a40cf0c NC |
6269 | static elf_section_list * |
6270 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6271 | { | |
6272 | for (;list != NULL; list = list->next) | |
6273 | if (list->ndx == i) | |
6274 | break; | |
6275 | return list; | |
6276 | } | |
6277 | ||
252b5132 RH |
6278 | /* Work out the file positions of all the sections. This is called by |
6279 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6280 | VMAs must be known before this is called. | |
6281 | ||
e0638f70 | 6282 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6283 | "side-channel" data attached to a section to which they apply, and those that |
6284 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6285 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6286 | here, unless they form part of the loadable image. Reloc sections not | |
6287 | assigned here (and compressed debugging sections and CTF sections which | |
6288 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6289 | assign_file_positions_for_relocs. |
252b5132 RH |
6290 | |
6291 | We also don't set the positions of the .symtab and .strtab here. */ | |
6292 | ||
b34976b6 | 6293 | static bfd_boolean |
c84fca4d AO |
6294 | assign_file_positions_except_relocs (bfd *abfd, |
6295 | struct bfd_link_info *link_info) | |
252b5132 | 6296 | { |
5c182d5f AM |
6297 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6298 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6299 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6300 | unsigned int alloc; |
252b5132 RH |
6301 | |
6302 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6303 | && bfd_get_format (abfd) != bfd_core) | |
6304 | { | |
5c182d5f AM |
6305 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6306 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6307 | Elf_Internal_Shdr **hdrpp; |
6308 | unsigned int i; | |
a485e98e | 6309 | file_ptr off; |
252b5132 RH |
6310 | |
6311 | /* Start after the ELF header. */ | |
6312 | off = i_ehdrp->e_ehsize; | |
6313 | ||
6314 | /* We are not creating an executable, which means that we are | |
6315 | not creating a program header, and that the actual order of | |
6316 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6317 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6318 | { |
6319 | Elf_Internal_Shdr *hdr; | |
6320 | ||
6321 | hdr = *hdrpp; | |
e0638f70 AM |
6322 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6323 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6324 | /* Do not assign offsets for these sections yet: we don't know |
6325 | their sizes. */ | |
0ce398f1 | 6326 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6327 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6328 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6329 | && abfd->is_linker_output))) | |
12bd6957 | 6330 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6331 | || (elf_symtab_shndx_list (abfd) != NULL |
6332 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6333 | || i == elf_strtab_sec (abfd) |
6334 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6335 | { |
6336 | hdr->sh_offset = -1; | |
252b5132 | 6337 | } |
9ad5cbcf | 6338 | else |
b34976b6 | 6339 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6340 | } |
a485e98e AM |
6341 | |
6342 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6343 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6344 | } |
6345 | else | |
6346 | { | |
252b5132 | 6347 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6348 | assignment of sections to segments. */ |
f3520d2f AM |
6349 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6350 | return FALSE; | |
6351 | ||
6352 | /* And for non-load sections. */ | |
6353 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6354 | return FALSE; | |
6d6c25c8 | 6355 | } |
f3520d2f | 6356 | |
6d6c25c8 AM |
6357 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
6358 | return FALSE; | |
1a9ccd70 | 6359 | |
6d6c25c8 AM |
6360 | /* Write out the program headers. */ |
6361 | alloc = i_ehdrp->e_phnum; | |
6362 | if (alloc != 0) | |
6363 | { | |
30fe1832 | 6364 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 NC |
6365 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6366 | return FALSE; | |
252b5132 RH |
6367 | } |
6368 | ||
b34976b6 | 6369 | return TRUE; |
252b5132 RH |
6370 | } |
6371 | ||
ed7e9d0b AM |
6372 | bfd_boolean |
6373 | _bfd_elf_init_file_header (bfd *abfd, | |
6374 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6375 | { |
3d540e93 | 6376 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6377 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6378 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6379 | |
6380 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6381 | |
2b0f7ef9 | 6382 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6383 | if (shstrtab == NULL) |
b34976b6 | 6384 | return FALSE; |
252b5132 RH |
6385 | |
6386 | elf_shstrtab (abfd) = shstrtab; | |
6387 | ||
6388 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6389 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6390 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6391 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6392 | ||
6393 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6394 | i_ehdrp->e_ident[EI_DATA] = | |
6395 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6396 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6397 | ||
252b5132 RH |
6398 | if ((abfd->flags & DYNAMIC) != 0) |
6399 | i_ehdrp->e_type = ET_DYN; | |
6400 | else if ((abfd->flags & EXEC_P) != 0) | |
6401 | i_ehdrp->e_type = ET_EXEC; | |
6402 | else if (bfd_get_format (abfd) == bfd_core) | |
6403 | i_ehdrp->e_type = ET_CORE; | |
6404 | else | |
6405 | i_ehdrp->e_type = ET_REL; | |
6406 | ||
6407 | switch (bfd_get_arch (abfd)) | |
6408 | { | |
6409 | case bfd_arch_unknown: | |
6410 | i_ehdrp->e_machine = EM_NONE; | |
6411 | break; | |
aa4f99bb AO |
6412 | |
6413 | /* There used to be a long list of cases here, each one setting | |
6414 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6415 | in the corresponding bfd definition. To avoid duplication, | |
6416 | the switch was removed. Machines that need special handling | |
6417 | can generally do it in elf_backend_final_write_processing(), | |
6418 | unless they need the information earlier than the final write. | |
6419 | Such need can generally be supplied by replacing the tests for | |
6420 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6421 | default: |
9c5bfbb7 AM |
6422 | i_ehdrp->e_machine = bed->elf_machine_code; |
6423 | } | |
aa4f99bb | 6424 | |
252b5132 RH |
6425 | i_ehdrp->e_version = bed->s->ev_current; |
6426 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6427 | ||
c044fabd | 6428 | /* No program header, for now. */ |
252b5132 RH |
6429 | i_ehdrp->e_phoff = 0; |
6430 | i_ehdrp->e_phentsize = 0; | |
6431 | i_ehdrp->e_phnum = 0; | |
6432 | ||
c044fabd | 6433 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6434 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6435 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6436 | ||
252b5132 | 6437 | elf_tdata (abfd)->symtab_hdr.sh_name = |
b34976b6 | 6438 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6439 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6440 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6441 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6442 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6443 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6444 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6445 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6446 | return FALSE; |
252b5132 | 6447 | |
b34976b6 | 6448 | return TRUE; |
252b5132 RH |
6449 | } |
6450 | ||
6d6c25c8 AM |
6451 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6452 | ||
6453 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6454 | ascending order, as per the ELF spec. But this breaks some programs, | |
6455 | including the Linux kernel. But really either the spec should be | |
6456 | changed or the programs updated. */ | |
6457 | ||
6458 | bfd_boolean | |
6459 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) | |
6460 | { | |
6461 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6462 | { | |
6463 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6464 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6465 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6466 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6467 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6468 | ||
6469 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6470 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6471 | for (; segment < end_segment; segment++) | |
6472 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6473 | p_vaddr = segment->p_vaddr; | |
6474 | ||
6475 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6476 | segments is non-zero. */ | |
6477 | if (p_vaddr) | |
6478 | i_ehdrp->e_type = ET_EXEC; | |
6479 | } | |
6480 | return TRUE; | |
6481 | } | |
6482 | ||
252b5132 | 6483 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6484 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6485 | |
0ce398f1 L |
6486 | static bfd_boolean |
6487 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6488 | { |
6489 | file_ptr off; | |
e06efbf1 | 6490 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6491 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6492 | Elf_Internal_Ehdr *i_ehdrp; |
6493 | const struct elf_backend_data *bed; | |
252b5132 | 6494 | |
12bd6957 | 6495 | off = elf_next_file_pos (abfd); |
252b5132 | 6496 | |
e06efbf1 L |
6497 | shdrpp = elf_elfsections (abfd); |
6498 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6499 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6500 | { |
252b5132 | 6501 | shdrp = *shdrpp; |
0ce398f1 L |
6502 | if (shdrp->sh_offset == -1) |
6503 | { | |
3e19fb8f | 6504 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6505 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6506 | || shdrp->sh_type == SHT_RELA); | |
1ff6de03 | 6507 | bfd_boolean is_ctf = sec && bfd_section_is_ctf (sec); |
0ce398f1 | 6508 | if (is_rel |
1ff6de03 | 6509 | || is_ctf |
3e19fb8f | 6510 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6511 | { |
1ff6de03 | 6512 | if (!is_rel && !is_ctf) |
0ce398f1 | 6513 | { |
3e19fb8f L |
6514 | const char *name = sec->name; |
6515 | struct bfd_elf_section_data *d; | |
6516 | ||
0ce398f1 | 6517 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6518 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6519 | shdrp->contents)) |
6520 | return FALSE; | |
3e19fb8f L |
6521 | |
6522 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6523 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6524 | { | |
6525 | /* If section is compressed with zlib-gnu, convert | |
6526 | section name from .debug_* to .zdebug_*. */ | |
6527 | char *new_name | |
6528 | = convert_debug_to_zdebug (abfd, name); | |
6529 | if (new_name == NULL) | |
6530 | return FALSE; | |
6531 | name = new_name; | |
6532 | } | |
dd905818 | 6533 | /* Add section name to section name section. */ |
3e19fb8f L |
6534 | if (shdrp->sh_name != (unsigned int) -1) |
6535 | abort (); | |
6536 | shdrp->sh_name | |
6537 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6538 | name, FALSE); | |
6539 | d = elf_section_data (sec); | |
6540 | ||
dd905818 | 6541 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6542 | if (d->rel.hdr |
6543 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6544 | d->rel.hdr, | |
6545 | name, FALSE)) | |
6546 | return FALSE; | |
6547 | if (d->rela.hdr | |
6548 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6549 | d->rela.hdr, | |
91cb26da | 6550 | name, TRUE)) |
3e19fb8f L |
6551 | return FALSE; |
6552 | ||
0ce398f1 | 6553 | /* Update section size and contents. */ |
3e19fb8f L |
6554 | shdrp->sh_size = sec->size; |
6555 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6556 | shdrp->bfd_section->contents = NULL; |
6557 | } | |
1ff6de03 NA |
6558 | else if (is_ctf) |
6559 | { | |
6560 | /* Update section size and contents. */ | |
6561 | shdrp->sh_size = sec->size; | |
6562 | shdrp->contents = sec->contents; | |
6563 | } | |
6564 | ||
0ce398f1 L |
6565 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6566 | off, | |
6567 | TRUE); | |
6568 | } | |
6569 | } | |
252b5132 RH |
6570 | } |
6571 | ||
3e19fb8f L |
6572 | /* Place section name section after DWARF debug sections have been |
6573 | compressed. */ | |
6574 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6575 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6576 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6577 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6578 | ||
6579 | /* Place the section headers. */ | |
a485e98e AM |
6580 | i_ehdrp = elf_elfheader (abfd); |
6581 | bed = get_elf_backend_data (abfd); | |
6582 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6583 | i_ehdrp->e_shoff = off; | |
6584 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6585 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6586 | |
6587 | return TRUE; | |
252b5132 RH |
6588 | } |
6589 | ||
b34976b6 | 6590 | bfd_boolean |
217aa764 | 6591 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6592 | { |
9c5bfbb7 | 6593 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6594 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6595 | bfd_boolean failed; |
9ad5cbcf | 6596 | unsigned int count, num_sec; |
30e8ee25 | 6597 | struct elf_obj_tdata *t; |
252b5132 RH |
6598 | |
6599 | if (! abfd->output_has_begun | |
217aa764 | 6600 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6601 | return FALSE; |
db727370 JL |
6602 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6603 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6604 | sections, and modification of existing section sizes was restricted. | |
6605 | This means the ELF header, program headers and section headers can't have | |
6606 | changed. | |
6607 | If the contents of any sections has been modified, then those changes have | |
6608 | already been written to the BFD. */ | |
6609 | else if (abfd->direction == both_direction) | |
6610 | { | |
6611 | BFD_ASSERT (abfd->output_has_begun); | |
6612 | return TRUE; | |
6613 | } | |
252b5132 RH |
6614 | |
6615 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6616 | |
b34976b6 | 6617 | failed = FALSE; |
252b5132 RH |
6618 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6619 | if (failed) | |
b34976b6 | 6620 | return FALSE; |
252b5132 | 6621 | |
0ce398f1 L |
6622 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6623 | return FALSE; | |
252b5132 | 6624 | |
c044fabd | 6625 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6626 | num_sec = elf_numsections (abfd); |
6627 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6628 | { |
3e19fb8f L |
6629 | i_shdrp[count]->sh_name |
6630 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6631 | i_shdrp[count]->sh_name); | |
252b5132 | 6632 | if (bed->elf_backend_section_processing) |
75506100 MR |
6633 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6634 | return FALSE; | |
252b5132 RH |
6635 | if (i_shdrp[count]->contents) |
6636 | { | |
dc810e39 AM |
6637 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6638 | ||
252b5132 | 6639 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6640 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6641 | return FALSE; |
252b5132 RH |
6642 | } |
6643 | } | |
6644 | ||
6645 | /* Write out the section header names. */ | |
30e8ee25 | 6646 | t = elf_tdata (abfd); |
26ae6d5e | 6647 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6648 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6649 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6650 | return FALSE; |
252b5132 | 6651 | |
cc364be6 AM |
6652 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
6653 | return FALSE; | |
252b5132 | 6654 | |
ff59fc36 RM |
6655 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6656 | return FALSE; | |
6657 | ||
6658 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6659 | if (t->o->build_id.after_write_object_contents != NULL) |
6660 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6661 | |
6662 | return TRUE; | |
252b5132 RH |
6663 | } |
6664 | ||
b34976b6 | 6665 | bfd_boolean |
217aa764 | 6666 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6667 | { |
c044fabd | 6668 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6669 | return _bfd_elf_write_object_contents (abfd); |
6670 | } | |
c044fabd KH |
6671 | |
6672 | /* Given a section, search the header to find them. */ | |
6673 | ||
cb33740c | 6674 | unsigned int |
198beae2 | 6675 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6676 | { |
9c5bfbb7 | 6677 | const struct elf_backend_data *bed; |
91d6fa6a | 6678 | unsigned int sec_index; |
252b5132 | 6679 | |
9ad5cbcf AM |
6680 | if (elf_section_data (asect) != NULL |
6681 | && elf_section_data (asect)->this_idx != 0) | |
6682 | return elf_section_data (asect)->this_idx; | |
6683 | ||
6684 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6685 | sec_index = SHN_ABS; |
af746e92 | 6686 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6687 | sec_index = SHN_COMMON; |
af746e92 | 6688 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6689 | sec_index = SHN_UNDEF; |
af746e92 | 6690 | else |
91d6fa6a | 6691 | sec_index = SHN_BAD; |
252b5132 | 6692 | |
af746e92 | 6693 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6694 | if (bed->elf_backend_section_from_bfd_section) |
6695 | { | |
91d6fa6a | 6696 | int retval = sec_index; |
9ad5cbcf | 6697 | |
af746e92 AM |
6698 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6699 | return retval; | |
252b5132 RH |
6700 | } |
6701 | ||
91d6fa6a | 6702 | if (sec_index == SHN_BAD) |
af746e92 | 6703 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6704 | |
91d6fa6a | 6705 | return sec_index; |
252b5132 RH |
6706 | } |
6707 | ||
6708 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6709 | on error. */ | |
6710 | ||
6711 | int | |
217aa764 | 6712 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6713 | { |
6714 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6715 | int idx; | |
6716 | flagword flags = asym_ptr->flags; | |
6717 | ||
6718 | /* When gas creates relocations against local labels, it creates its | |
6719 | own symbol for the section, but does put the symbol into the | |
6720 | symbol chain, so udata is 0. When the linker is generating | |
6721 | relocatable output, this section symbol may be for one of the | |
6722 | input sections rather than the output section. */ | |
6723 | if (asym_ptr->udata.i == 0 | |
6724 | && (flags & BSF_SECTION_SYM) | |
6725 | && asym_ptr->section) | |
6726 | { | |
5372391b | 6727 | asection *sec; |
252b5132 RH |
6728 | int indx; |
6729 | ||
5372391b AM |
6730 | sec = asym_ptr->section; |
6731 | if (sec->owner != abfd && sec->output_section != NULL) | |
6732 | sec = sec->output_section; | |
6733 | if (sec->owner == abfd | |
6734 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6735 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6736 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6737 | } | |
6738 | ||
6739 | idx = asym_ptr->udata.i; | |
6740 | ||
6741 | if (idx == 0) | |
6742 | { | |
6743 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6744 | which is used in a relocation entry. */ |
4eca0228 | 6745 | _bfd_error_handler |
695344c0 | 6746 | /* xgettext:c-format */ |
871b3ab2 | 6747 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6748 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6749 | bfd_set_error (bfd_error_no_symbols); |
6750 | return -1; | |
6751 | } | |
6752 | ||
6753 | #if DEBUG & 4 | |
6754 | { | |
6755 | fprintf (stderr, | |
cd9af601 AM |
6756 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6757 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6758 | fflush (stderr); |
6759 | } | |
6760 | #endif | |
6761 | ||
6762 | return idx; | |
6763 | } | |
6764 | ||
84d1d650 | 6765 | /* Rewrite program header information. */ |
252b5132 | 6766 | |
b34976b6 | 6767 | static bfd_boolean |
84d1d650 | 6768 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6769 | { |
b34976b6 AM |
6770 | Elf_Internal_Ehdr *iehdr; |
6771 | struct elf_segment_map *map; | |
6772 | struct elf_segment_map *map_first; | |
6773 | struct elf_segment_map **pointer_to_map; | |
6774 | Elf_Internal_Phdr *segment; | |
6775 | asection *section; | |
6776 | unsigned int i; | |
6777 | unsigned int num_segments; | |
6778 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6779 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6780 | bfd_vma maxpagesize; |
6781 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6782 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6783 | const struct elf_backend_data *bed; |
bc67d8a6 | 6784 | |
caf47ea6 | 6785 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6786 | iehdr = elf_elfheader (ibfd); |
6787 | ||
bc67d8a6 | 6788 | map_first = NULL; |
c044fabd | 6789 | pointer_to_map = &map_first; |
252b5132 RH |
6790 | |
6791 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6792 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6793 | ||
6794 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6795 | #define SEGMENT_END(segment, start) \ |
6796 | (start + (segment->p_memsz > segment->p_filesz \ | |
6797 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6798 | |
eecdbe52 JJ |
6799 | #define SECTION_SIZE(section, segment) \ |
6800 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6801 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6802 | ? section->size : 0) |
eecdbe52 | 6803 | |
b34976b6 | 6804 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6805 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6806 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6807 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6808 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6809 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6810 | |
b34976b6 | 6811 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6812 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6813 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6814 | (section->lma >= base \ | |
beab4532 | 6815 | && (section->lma + SECTION_SIZE (section, segment) >= section->lma) \ |
eecdbe52 | 6816 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6817 | <= SEGMENT_END (segment, base))) |
252b5132 | 6818 | |
0efc80c8 L |
6819 | /* Handle PT_NOTE segment. */ |
6820 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6821 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6822 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6823 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6824 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6825 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6826 | |
0efc80c8 L |
6827 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6828 | etc. */ | |
6829 | #define IS_COREFILE_NOTE(p, s) \ | |
6830 | (IS_NOTE (p, s) \ | |
6831 | && bfd_get_format (ibfd) == bfd_core \ | |
6832 | && s->vma == 0 \ | |
6833 | && s->lma == 0) | |
6834 | ||
252b5132 RH |
6835 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6836 | linker, which generates a PT_INTERP section with p_vaddr and | |
6837 | p_memsz set to 0. */ | |
aecc8f8a AM |
6838 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6839 | (p->p_vaddr == 0 \ | |
6840 | && p->p_paddr == 0 \ | |
6841 | && p->p_memsz == 0 \ | |
6842 | && p->p_filesz > 0 \ | |
6843 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6844 | && s->size > 0 \ |
aecc8f8a | 6845 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6846 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6847 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6848 | |
bc67d8a6 NC |
6849 | /* Decide if the given section should be included in the given segment. |
6850 | A section will be included if: | |
f5ffc919 | 6851 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6852 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6853 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6854 | segment. |
bc67d8a6 | 6855 | 3. There is an output section associated with it, |
eecdbe52 | 6856 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6857 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6858 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6859 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6860 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6861 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6862 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6863 | ((((segment->p_paddr \ |
6864 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6865 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6866 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6867 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6868 | && segment->p_type != PT_GNU_STACK \ |
6869 | && (segment->p_type != PT_TLS \ | |
6870 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6871 | && (segment->p_type == PT_LOAD \ | |
6872 | || segment->p_type == PT_TLS \ | |
6873 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6874 | && (segment->p_type != PT_DYNAMIC \ | |
6875 | || SECTION_SIZE (section, segment) > 0 \ | |
6876 | || (segment->p_paddr \ | |
6877 | ? segment->p_paddr != section->lma \ | |
6878 | : segment->p_vaddr != section->vma) \ | |
fd361982 | 6879 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6880 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6881 | |
9f17e2a6 L |
6882 | /* If the output section of a section in the input segment is NULL, |
6883 | it is removed from the corresponding output segment. */ | |
6884 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6885 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6886 | && section->output_section != NULL) | |
6887 | ||
b34976b6 | 6888 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6889 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6890 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6891 | ||
6892 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6893 | their VMA address ranges and their LMA address ranges overlap. | |
6894 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6895 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6896 | to the same VMA range, but with the .data section mapped to a different | |
6897 | LMA. */ | |
aecc8f8a | 6898 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6899 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6900 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6901 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6902 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6903 | |
6904 | /* Initialise the segment mark field. */ | |
6905 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6906 | section->segment_mark = FALSE; |
bc67d8a6 | 6907 | |
5c44b38e AM |
6908 | /* The Solaris linker creates program headers in which all the |
6909 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6910 | file, we get confused. Check for this case, and if we find it | |
6911 | don't set the p_paddr_valid fields. */ | |
6912 | p_paddr_valid = FALSE; | |
6913 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6914 | i < num_segments; | |
6915 | i++, segment++) | |
6916 | if (segment->p_paddr != 0) | |
6917 | { | |
6918 | p_paddr_valid = TRUE; | |
6919 | break; | |
6920 | } | |
6921 | ||
252b5132 | 6922 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6923 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6924 | in the loadable segments. These can be created by weird |
aecc8f8a | 6925 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6926 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6927 | i < num_segments; | |
c044fabd | 6928 | i++, segment++) |
252b5132 | 6929 | { |
252b5132 | 6930 | unsigned int j; |
c044fabd | 6931 | Elf_Internal_Phdr *segment2; |
252b5132 | 6932 | |
aecc8f8a AM |
6933 | if (segment->p_type == PT_INTERP) |
6934 | for (section = ibfd->sections; section; section = section->next) | |
6935 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6936 | { | |
6937 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6938 | assignment code will work. */ |
aecc8f8a AM |
6939 | segment->p_vaddr = section->vma; |
6940 | break; | |
6941 | } | |
6942 | ||
bc67d8a6 | 6943 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6944 | { |
6945 | /* Remove PT_GNU_RELRO segment. */ | |
6946 | if (segment->p_type == PT_GNU_RELRO) | |
6947 | segment->p_type = PT_NULL; | |
6948 | continue; | |
6949 | } | |
c044fabd | 6950 | |
bc67d8a6 | 6951 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6952 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6953 | { |
6954 | bfd_signed_vma extra_length; | |
c044fabd | 6955 | |
bc67d8a6 | 6956 | if (segment2->p_type != PT_LOAD |
0067a569 | 6957 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6958 | continue; |
c044fabd | 6959 | |
bc67d8a6 NC |
6960 | /* Merge the two segments together. */ |
6961 | if (segment2->p_vaddr < segment->p_vaddr) | |
6962 | { | |
c044fabd | 6963 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6964 | SEGMENT. */ |
0067a569 AM |
6965 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6966 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6967 | |
bc67d8a6 NC |
6968 | if (extra_length > 0) |
6969 | { | |
0067a569 | 6970 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6971 | segment2->p_filesz += extra_length; |
6972 | } | |
c044fabd | 6973 | |
bc67d8a6 | 6974 | segment->p_type = PT_NULL; |
c044fabd | 6975 | |
bc67d8a6 NC |
6976 | /* Since we have deleted P we must restart the outer loop. */ |
6977 | i = 0; | |
6978 | segment = elf_tdata (ibfd)->phdr; | |
6979 | break; | |
6980 | } | |
6981 | else | |
6982 | { | |
c044fabd | 6983 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6984 | SEGMENT2. */ |
0067a569 AM |
6985 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6986 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6987 | |
bc67d8a6 NC |
6988 | if (extra_length > 0) |
6989 | { | |
0067a569 | 6990 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
6991 | segment->p_filesz += extra_length; |
6992 | } | |
c044fabd | 6993 | |
bc67d8a6 NC |
6994 | segment2->p_type = PT_NULL; |
6995 | } | |
6996 | } | |
6997 | } | |
c044fabd | 6998 | |
bc67d8a6 NC |
6999 | /* The second scan attempts to assign sections to segments. */ |
7000 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7001 | i < num_segments; | |
0067a569 | 7002 | i++, segment++) |
bc67d8a6 | 7003 | { |
0067a569 AM |
7004 | unsigned int section_count; |
7005 | asection **sections; | |
7006 | asection *output_section; | |
7007 | unsigned int isec; | |
9933dc52 AM |
7008 | asection *matching_lma; |
7009 | asection *suggested_lma; | |
0067a569 | 7010 | unsigned int j; |
446f7ed5 | 7011 | size_t amt; |
0067a569 | 7012 | asection *first_section; |
bc67d8a6 NC |
7013 | |
7014 | if (segment->p_type == PT_NULL) | |
7015 | continue; | |
c044fabd | 7016 | |
9f17e2a6 | 7017 | first_section = NULL; |
bc67d8a6 | 7018 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7019 | for (section = ibfd->sections, section_count = 0; |
7020 | section != NULL; | |
7021 | section = section->next) | |
9f17e2a6 L |
7022 | { |
7023 | /* Find the first section in the input segment, which may be | |
7024 | removed from the corresponding output segment. */ | |
7025 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
7026 | { | |
7027 | if (first_section == NULL) | |
7028 | first_section = section; | |
7029 | if (section->output_section != NULL) | |
7030 | ++section_count; | |
7031 | } | |
7032 | } | |
811072d8 | 7033 | |
b5f852ea NC |
7034 | /* Allocate a segment map big enough to contain |
7035 | all of the sections we have selected. */ | |
00bee008 | 7036 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7037 | amt += section_count * sizeof (asection *); |
a50b1753 | 7038 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7039 | if (map == NULL) |
b34976b6 | 7040 | return FALSE; |
252b5132 RH |
7041 | |
7042 | /* Initialise the fields of the segment map. Default to | |
7043 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7044 | map->next = NULL; |
7045 | map->p_type = segment->p_type; | |
7046 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7047 | map->p_flags_valid = 1; |
55d55ac7 | 7048 | |
9f17e2a6 L |
7049 | /* If the first section in the input segment is removed, there is |
7050 | no need to preserve segment physical address in the corresponding | |
7051 | output segment. */ | |
945c025a | 7052 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7053 | { |
7054 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7055 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7056 | } |
252b5132 RH |
7057 | |
7058 | /* Determine if this segment contains the ELF file header | |
7059 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7060 | map->includes_filehdr = (segment->p_offset == 0 |
7061 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7062 | map->includes_phdrs = 0; |
252b5132 | 7063 | |
0067a569 | 7064 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7065 | { |
bc67d8a6 NC |
7066 | map->includes_phdrs = |
7067 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7068 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7069 | >= ((bfd_vma) iehdr->e_phoff |
7070 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7071 | |
bc67d8a6 | 7072 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 7073 | phdr_included = TRUE; |
252b5132 RH |
7074 | } |
7075 | ||
bc67d8a6 | 7076 | if (section_count == 0) |
252b5132 RH |
7077 | { |
7078 | /* Special segments, such as the PT_PHDR segment, may contain | |
7079 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7080 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7081 | a warning is produced. |
f98450c6 NC |
7082 | There is however the valid use case of embedded systems which |
7083 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7084 | flash memory with zeros. No warning is shown for that case. */ | |
7085 | if (segment->p_type == PT_LOAD | |
7086 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7087 | /* xgettext:c-format */ | |
9793eb77 AM |
7088 | _bfd_error_handler |
7089 | (_("%pB: warning: empty loadable segment detected" | |
7090 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7091 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7092 | |
5d695627 | 7093 | map->p_vaddr_offset = segment->p_vaddr; |
bc67d8a6 | 7094 | map->count = 0; |
c044fabd KH |
7095 | *pointer_to_map = map; |
7096 | pointer_to_map = &map->next; | |
252b5132 RH |
7097 | |
7098 | continue; | |
7099 | } | |
7100 | ||
7101 | /* Now scan the sections in the input BFD again and attempt | |
7102 | to add their corresponding output sections to the segment map. | |
7103 | The problem here is how to handle an output section which has | |
7104 | been moved (ie had its LMA changed). There are four possibilities: | |
7105 | ||
7106 | 1. None of the sections have been moved. | |
7107 | In this case we can continue to use the segment LMA from the | |
7108 | input BFD. | |
7109 | ||
7110 | 2. All of the sections have been moved by the same amount. | |
7111 | In this case we can change the segment's LMA to match the LMA | |
7112 | of the first section. | |
7113 | ||
7114 | 3. Some of the sections have been moved, others have not. | |
7115 | In this case those sections which have not been moved can be | |
7116 | placed in the current segment which will have to have its size, | |
7117 | and possibly its LMA changed, and a new segment or segments will | |
7118 | have to be created to contain the other sections. | |
7119 | ||
b5f852ea | 7120 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7121 | In this case we can change the segment's LMA to match the LMA |
7122 | of the first section and we will have to create a new segment | |
7123 | or segments to contain the other sections. | |
7124 | ||
7125 | In order to save time, we allocate an array to hold the section | |
7126 | pointers that we are interested in. As these sections get assigned | |
7127 | to a segment, they are removed from this array. */ | |
7128 | ||
446f7ed5 AM |
7129 | amt = section_count * sizeof (asection *); |
7130 | sections = (asection **) bfd_malloc (amt); | |
252b5132 | 7131 | if (sections == NULL) |
b34976b6 | 7132 | return FALSE; |
252b5132 RH |
7133 | |
7134 | /* Step One: Scan for segment vs section LMA conflicts. | |
7135 | Also add the sections to the section array allocated above. | |
7136 | Also add the sections to the current segment. In the common | |
7137 | case, where the sections have not been moved, this means that | |
7138 | we have completely filled the segment, and there is nothing | |
7139 | more to do. */ | |
252b5132 | 7140 | isec = 0; |
9933dc52 AM |
7141 | matching_lma = NULL; |
7142 | suggested_lma = NULL; | |
252b5132 | 7143 | |
461c4b2e | 7144 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7145 | section != NULL; |
7146 | section = section->next) | |
252b5132 | 7147 | { |
caf47ea6 | 7148 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 7149 | { |
bc67d8a6 NC |
7150 | output_section = section->output_section; |
7151 | ||
0067a569 | 7152 | sections[j++] = section; |
252b5132 RH |
7153 | |
7154 | /* The Solaris native linker always sets p_paddr to 0. | |
7155 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7156 | correct value. Note - some backends require that |
7157 | p_paddr be left as zero. */ | |
5c44b38e | 7158 | if (!p_paddr_valid |
4455705d | 7159 | && segment->p_vaddr != 0 |
0067a569 | 7160 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7161 | && isec == 0 |
bc67d8a6 | 7162 | && output_section->lma != 0 |
9933dc52 AM |
7163 | && (align_power (segment->p_vaddr |
7164 | + (map->includes_filehdr | |
7165 | ? iehdr->e_ehsize : 0) | |
7166 | + (map->includes_phdrs | |
7167 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7168 | : 0), | |
7169 | output_section->alignment_power) | |
7170 | == output_section->vma)) | |
bc67d8a6 | 7171 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7172 | |
7173 | /* Match up the physical address of the segment with the | |
7174 | LMA address of the output section. */ | |
bc67d8a6 | 7175 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 7176 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
7177 | || (bed->want_p_paddr_set_to_zero |
7178 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 7179 | { |
9933dc52 AM |
7180 | if (matching_lma == NULL |
7181 | || output_section->lma < matching_lma->lma) | |
7182 | matching_lma = output_section; | |
252b5132 RH |
7183 | |
7184 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7185 | then it does not overlap any other section within that |
252b5132 | 7186 | segment. */ |
0067a569 AM |
7187 | map->sections[isec++] = output_section; |
7188 | } | |
9933dc52 AM |
7189 | else if (suggested_lma == NULL) |
7190 | suggested_lma = output_section; | |
147d51c2 L |
7191 | |
7192 | if (j == section_count) | |
7193 | break; | |
252b5132 RH |
7194 | } |
7195 | } | |
7196 | ||
bc67d8a6 | 7197 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7198 | |
7199 | /* Step Two: Adjust the physical address of the current segment, | |
7200 | if necessary. */ | |
bc67d8a6 | 7201 | if (isec == section_count) |
252b5132 RH |
7202 | { |
7203 | /* All of the sections fitted within the segment as currently | |
7204 | specified. This is the default case. Add the segment to | |
7205 | the list of built segments and carry on to process the next | |
7206 | program header in the input BFD. */ | |
bc67d8a6 | 7207 | map->count = section_count; |
c044fabd KH |
7208 | *pointer_to_map = map; |
7209 | pointer_to_map = &map->next; | |
08a40648 | 7210 | |
5c44b38e | 7211 | if (p_paddr_valid |
30fe1832 AM |
7212 | && !bed->want_p_paddr_set_to_zero) |
7213 | { | |
7214 | bfd_vma hdr_size = 0; | |
7215 | if (map->includes_filehdr) | |
7216 | hdr_size = iehdr->e_ehsize; | |
7217 | if (map->includes_phdrs) | |
7218 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7219 | ||
7220 | /* Account for padding before the first section in the | |
7221 | segment. */ | |
7222 | map->p_vaddr_offset = map->p_paddr + hdr_size - matching_lma->lma; | |
7223 | } | |
08a40648 | 7224 | |
252b5132 RH |
7225 | free (sections); |
7226 | continue; | |
7227 | } | |
252b5132 RH |
7228 | else |
7229 | { | |
9933dc52 AM |
7230 | /* Change the current segment's physical address to match |
7231 | the LMA of the first section that fitted, or if no | |
7232 | section fitted, the first section. */ | |
7233 | if (matching_lma == NULL) | |
7234 | matching_lma = suggested_lma; | |
7235 | ||
7236 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7237 | |
bc67d8a6 NC |
7238 | /* Offset the segment physical address from the lma |
7239 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7240 | if (map->includes_phdrs) |
010c8431 | 7241 | { |
9933dc52 AM |
7242 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7243 | ||
7244 | /* iehdr->e_phnum is just an estimate of the number | |
7245 | of program headers that we will need. Make a note | |
7246 | here of the number we used and the segment we chose | |
7247 | to hold these headers, so that we can adjust the | |
7248 | offset when we know the correct value. */ | |
7249 | phdr_adjust_num = iehdr->e_phnum; | |
7250 | phdr_adjust_seg = map; | |
010c8431 | 7251 | } |
252b5132 | 7252 | |
9933dc52 | 7253 | if (map->includes_filehdr) |
bc67d8a6 | 7254 | { |
9933dc52 AM |
7255 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7256 | map->p_paddr -= iehdr->e_ehsize; | |
7257 | /* We've subtracted off the size of headers from the | |
7258 | first section lma, but there may have been some | |
7259 | alignment padding before that section too. Try to | |
7260 | account for that by adjusting the segment lma down to | |
7261 | the same alignment. */ | |
7262 | if (segment->p_align != 0 && segment->p_align < align) | |
7263 | align = segment->p_align; | |
7264 | map->p_paddr &= -align; | |
bc67d8a6 | 7265 | } |
252b5132 RH |
7266 | } |
7267 | ||
7268 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7269 | those that fit to the current segment and removing them from the |
252b5132 RH |
7270 | sections array; but making sure not to leave large gaps. Once all |
7271 | possible sections have been assigned to the current segment it is | |
7272 | added to the list of built segments and if sections still remain | |
7273 | to be assigned, a new segment is constructed before repeating | |
7274 | the loop. */ | |
7275 | isec = 0; | |
7276 | do | |
7277 | { | |
bc67d8a6 | 7278 | map->count = 0; |
9933dc52 | 7279 | suggested_lma = NULL; |
252b5132 RH |
7280 | |
7281 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7282 | for (j = 0; j < section_count; j++) |
252b5132 | 7283 | { |
bc67d8a6 | 7284 | section = sections[j]; |
252b5132 | 7285 | |
bc67d8a6 | 7286 | if (section == NULL) |
252b5132 RH |
7287 | continue; |
7288 | ||
bc67d8a6 | 7289 | output_section = section->output_section; |
252b5132 | 7290 | |
bc67d8a6 | 7291 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7292 | |
bc67d8a6 NC |
7293 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7294 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7295 | { |
bc67d8a6 | 7296 | if (map->count == 0) |
252b5132 RH |
7297 | { |
7298 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7299 | the beginning of the segment, then something is |
7300 | wrong. */ | |
9933dc52 AM |
7301 | if (align_power (map->p_paddr |
7302 | + (map->includes_filehdr | |
7303 | ? iehdr->e_ehsize : 0) | |
7304 | + (map->includes_phdrs | |
7305 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7306 | : 0), | |
7307 | output_section->alignment_power) | |
7308 | != output_section->lma) | |
9aea1e31 | 7309 | goto sorry; |
252b5132 RH |
7310 | } |
7311 | else | |
7312 | { | |
0067a569 | 7313 | asection *prev_sec; |
252b5132 | 7314 | |
bc67d8a6 | 7315 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7316 | |
7317 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7318 | and the start of this section is more than |
7319 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7320 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7321 | maxpagesize) |
caf47ea6 | 7322 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7323 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7324 | > output_section->lma)) |
252b5132 | 7325 | { |
9933dc52 AM |
7326 | if (suggested_lma == NULL) |
7327 | suggested_lma = output_section; | |
252b5132 RH |
7328 | |
7329 | continue; | |
7330 | } | |
7331 | } | |
7332 | ||
bc67d8a6 | 7333 | map->sections[map->count++] = output_section; |
252b5132 RH |
7334 | ++isec; |
7335 | sections[j] = NULL; | |
9933dc52 AM |
7336 | if (segment->p_type == PT_LOAD) |
7337 | section->segment_mark = TRUE; | |
0067a569 | 7338 | } |
9933dc52 AM |
7339 | else if (suggested_lma == NULL) |
7340 | suggested_lma = output_section; | |
252b5132 RH |
7341 | } |
7342 | ||
beab4532 NC |
7343 | /* PR 23932. A corrupt input file may contain sections that cannot |
7344 | be assigned to any segment - because for example they have a | |
9984857c NC |
7345 | negative size - or segments that do not contain any sections. |
7346 | But there are also valid reasons why a segment can be empty. | |
7347 | So allow a count of zero. */ | |
252b5132 RH |
7348 | |
7349 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7350 | *pointer_to_map = map; |
7351 | pointer_to_map = &map->next; | |
252b5132 | 7352 | |
bc67d8a6 | 7353 | if (isec < section_count) |
252b5132 RH |
7354 | { |
7355 | /* We still have not allocated all of the sections to | |
7356 | segments. Create a new segment here, initialise it | |
7357 | and carry on looping. */ | |
00bee008 | 7358 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7359 | amt += section_count * sizeof (asection *); |
5964fc3a | 7360 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7361 | if (map == NULL) |
5ed6aba4 NC |
7362 | { |
7363 | free (sections); | |
7364 | return FALSE; | |
7365 | } | |
252b5132 RH |
7366 | |
7367 | /* Initialise the fields of the segment map. Set the physical | |
7368 | physical address to the LMA of the first section that has | |
7369 | not yet been assigned. */ | |
0067a569 AM |
7370 | map->next = NULL; |
7371 | map->p_type = segment->p_type; | |
7372 | map->p_flags = segment->p_flags; | |
7373 | map->p_flags_valid = 1; | |
9933dc52 | 7374 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7375 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7376 | map->includes_filehdr = 0; |
0067a569 | 7377 | map->includes_phdrs = 0; |
252b5132 | 7378 | } |
9984857c NC |
7379 | |
7380 | continue; | |
7381 | sorry: | |
7382 | bfd_set_error (bfd_error_sorry); | |
7383 | free (sections); | |
7384 | return FALSE; | |
252b5132 | 7385 | } |
bc67d8a6 | 7386 | while (isec < section_count); |
252b5132 RH |
7387 | |
7388 | free (sections); | |
7389 | } | |
7390 | ||
12bd6957 | 7391 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7392 | |
7393 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7394 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7395 | the offset if necessary. */ |
7396 | if (phdr_adjust_seg != NULL) | |
7397 | { | |
7398 | unsigned int count; | |
c044fabd | 7399 | |
bc67d8a6 | 7400 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7401 | count++; |
252b5132 | 7402 | |
bc67d8a6 NC |
7403 | if (count > phdr_adjust_num) |
7404 | phdr_adjust_seg->p_paddr | |
7405 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7406 | |
7407 | for (map = map_first; map != NULL; map = map->next) | |
7408 | if (map->p_type == PT_PHDR) | |
7409 | { | |
7410 | bfd_vma adjust | |
7411 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7412 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7413 | break; | |
7414 | } | |
bc67d8a6 | 7415 | } |
c044fabd | 7416 | |
bc67d8a6 | 7417 | #undef SEGMENT_END |
eecdbe52 | 7418 | #undef SECTION_SIZE |
bc67d8a6 NC |
7419 | #undef IS_CONTAINED_BY_VMA |
7420 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7421 | #undef IS_NOTE |
252b5132 | 7422 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7423 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7424 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7425 | #undef INCLUDE_SECTION_IN_SEGMENT |
7426 | #undef SEGMENT_AFTER_SEGMENT | |
7427 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7428 | return TRUE; |
252b5132 RH |
7429 | } |
7430 | ||
84d1d650 L |
7431 | /* Copy ELF program header information. */ |
7432 | ||
7433 | static bfd_boolean | |
7434 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7435 | { | |
7436 | Elf_Internal_Ehdr *iehdr; | |
7437 | struct elf_segment_map *map; | |
7438 | struct elf_segment_map *map_first; | |
7439 | struct elf_segment_map **pointer_to_map; | |
7440 | Elf_Internal_Phdr *segment; | |
7441 | unsigned int i; | |
7442 | unsigned int num_segments; | |
7443 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7444 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7445 | |
7446 | iehdr = elf_elfheader (ibfd); | |
7447 | ||
7448 | map_first = NULL; | |
7449 | pointer_to_map = &map_first; | |
7450 | ||
88967714 AM |
7451 | /* If all the segment p_paddr fields are zero, don't set |
7452 | map->p_paddr_valid. */ | |
7453 | p_paddr_valid = FALSE; | |
84d1d650 | 7454 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7455 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7456 | i < num_segments; | |
7457 | i++, segment++) | |
7458 | if (segment->p_paddr != 0) | |
7459 | { | |
7460 | p_paddr_valid = TRUE; | |
7461 | break; | |
7462 | } | |
7463 | ||
84d1d650 L |
7464 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7465 | i < num_segments; | |
7466 | i++, segment++) | |
7467 | { | |
7468 | asection *section; | |
7469 | unsigned int section_count; | |
986f0783 | 7470 | size_t amt; |
84d1d650 | 7471 | Elf_Internal_Shdr *this_hdr; |
53020534 | 7472 | asection *first_section = NULL; |
a76e6f2f | 7473 | asection *lowest_section; |
84d1d650 | 7474 | |
84d1d650 L |
7475 | /* Compute how many sections are in this segment. */ |
7476 | for (section = ibfd->sections, section_count = 0; | |
7477 | section != NULL; | |
7478 | section = section->next) | |
7479 | { | |
7480 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7481 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7482 | { |
a76e6f2f AM |
7483 | if (first_section == NULL) |
7484 | first_section = section; | |
3271a814 NS |
7485 | section_count++; |
7486 | } | |
84d1d650 L |
7487 | } |
7488 | ||
7489 | /* Allocate a segment map big enough to contain | |
7490 | all of the sections we have selected. */ | |
00bee008 | 7491 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
986f0783 | 7492 | amt += section_count * sizeof (asection *); |
a50b1753 | 7493 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7494 | if (map == NULL) |
7495 | return FALSE; | |
7496 | ||
7497 | /* Initialize the fields of the output segment map with the | |
7498 | input segment. */ | |
7499 | map->next = NULL; | |
7500 | map->p_type = segment->p_type; | |
7501 | map->p_flags = segment->p_flags; | |
7502 | map->p_flags_valid = 1; | |
7503 | map->p_paddr = segment->p_paddr; | |
88967714 | 7504 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7505 | map->p_align = segment->p_align; |
7506 | map->p_align_valid = 1; | |
3271a814 | 7507 | map->p_vaddr_offset = 0; |
84d1d650 | 7508 | |
04c3a755 NS |
7509 | if (map->p_type == PT_GNU_RELRO |
7510 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7511 | { |
7512 | /* The PT_GNU_RELRO segment may contain the first a few | |
7513 | bytes in the .got.plt section even if the whole .got.plt | |
7514 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7515 | change the size of the PT_GNU_RELRO segment. |
7516 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7517 | systems. */ | |
9433b9b1 | 7518 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7519 | map->p_size_valid = 1; |
7520 | } | |
7521 | ||
84d1d650 L |
7522 | /* Determine if this segment contains the ELF file header |
7523 | and if it contains the program headers themselves. */ | |
7524 | map->includes_filehdr = (segment->p_offset == 0 | |
7525 | && segment->p_filesz >= iehdr->e_ehsize); | |
7526 | ||
7527 | map->includes_phdrs = 0; | |
7528 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7529 | { | |
7530 | map->includes_phdrs = | |
7531 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7532 | && (segment->p_offset + segment->p_filesz | |
7533 | >= ((bfd_vma) iehdr->e_phoff | |
7534 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7535 | ||
7536 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7537 | phdr_included = TRUE; | |
7538 | } | |
7539 | ||
bbefd0a9 | 7540 | lowest_section = NULL; |
84d1d650 L |
7541 | if (section_count != 0) |
7542 | { | |
7543 | unsigned int isec = 0; | |
7544 | ||
53020534 | 7545 | for (section = first_section; |
84d1d650 L |
7546 | section != NULL; |
7547 | section = section->next) | |
7548 | { | |
7549 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7550 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7551 | { |
7552 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7553 | if ((section->flags & SEC_ALLOC) != 0) |
7554 | { | |
7555 | bfd_vma seg_off; | |
7556 | ||
bbefd0a9 AM |
7557 | if (lowest_section == NULL |
7558 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7559 | lowest_section = section; |
7560 | ||
a76e6f2f AM |
7561 | /* Section lmas are set up from PT_LOAD header |
7562 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7563 | If this header has a p_paddr that disagrees | |
7564 | with the section lma, flag the p_paddr as | |
7565 | invalid. */ | |
7566 | if ((section->flags & SEC_LOAD) != 0) | |
7567 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7568 | else | |
7569 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7570 | if (section->lma - segment->p_paddr != seg_off) | |
7571 | map->p_paddr_valid = FALSE; | |
7572 | } | |
53020534 L |
7573 | if (isec == section_count) |
7574 | break; | |
7575 | } | |
84d1d650 L |
7576 | } |
7577 | } | |
7578 | ||
5d695627 AM |
7579 | if (section_count == 0) |
7580 | map->p_vaddr_offset = segment->p_vaddr; | |
30fe1832 AM |
7581 | else if (map->p_paddr_valid) |
7582 | { | |
7583 | /* Account for padding before the first section in the segment. */ | |
7584 | bfd_vma hdr_size = 0; | |
7585 | if (map->includes_filehdr) | |
7586 | hdr_size = iehdr->e_ehsize; | |
7587 | if (map->includes_phdrs) | |
7588 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7589 | ||
7590 | map->p_vaddr_offset = (map->p_paddr + hdr_size | |
7591 | - (lowest_section ? lowest_section->lma : 0)); | |
7592 | } | |
a76e6f2f | 7593 | |
84d1d650 L |
7594 | map->count = section_count; |
7595 | *pointer_to_map = map; | |
7596 | pointer_to_map = &map->next; | |
7597 | } | |
7598 | ||
12bd6957 | 7599 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7600 | return TRUE; |
7601 | } | |
7602 | ||
7603 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7604 | information. */ | |
7605 | ||
7606 | static bfd_boolean | |
7607 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7608 | { | |
84d1d650 L |
7609 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7610 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7611 | return TRUE; | |
7612 | ||
7613 | if (elf_tdata (ibfd)->phdr == NULL) | |
7614 | return TRUE; | |
7615 | ||
7616 | if (ibfd->xvec == obfd->xvec) | |
7617 | { | |
cb3ff1e5 NC |
7618 | /* Check to see if any sections in the input BFD |
7619 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7620 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7621 | asection *section, *osec; |
7622 | unsigned int i, num_segments; | |
7623 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7624 | const struct elf_backend_data *bed; |
7625 | ||
7626 | bed = get_elf_backend_data (ibfd); | |
7627 | ||
7628 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7629 | if (bed->want_p_paddr_set_to_zero) | |
7630 | goto rewrite; | |
84d1d650 L |
7631 | |
7632 | /* Initialize the segment mark field. */ | |
7633 | for (section = obfd->sections; section != NULL; | |
7634 | section = section->next) | |
7635 | section->segment_mark = FALSE; | |
7636 | ||
7637 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7638 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7639 | i < num_segments; | |
7640 | i++, segment++) | |
7641 | { | |
5f6999aa NC |
7642 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7643 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7644 | which severly confuses things, so always regenerate the segment | |
7645 | map in this case. */ | |
7646 | if (segment->p_paddr == 0 | |
7647 | && segment->p_memsz == 0 | |
7648 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7649 | goto rewrite; |
5f6999aa | 7650 | |
84d1d650 L |
7651 | for (section = ibfd->sections; |
7652 | section != NULL; section = section->next) | |
7653 | { | |
7654 | /* We mark the output section so that we know it comes | |
7655 | from the input BFD. */ | |
7656 | osec = section->output_section; | |
7657 | if (osec) | |
7658 | osec->segment_mark = TRUE; | |
7659 | ||
7660 | /* Check if this section is covered by the segment. */ | |
7661 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7662 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7663 | { |
7664 | /* FIXME: Check if its output section is changed or | |
7665 | removed. What else do we need to check? */ | |
7666 | if (osec == NULL | |
7667 | || section->flags != osec->flags | |
7668 | || section->lma != osec->lma | |
7669 | || section->vma != osec->vma | |
7670 | || section->size != osec->size | |
7671 | || section->rawsize != osec->rawsize | |
7672 | || section->alignment_power != osec->alignment_power) | |
7673 | goto rewrite; | |
7674 | } | |
7675 | } | |
7676 | } | |
7677 | ||
cb3ff1e5 | 7678 | /* Check to see if any output section do not come from the |
84d1d650 L |
7679 | input BFD. */ |
7680 | for (section = obfd->sections; section != NULL; | |
7681 | section = section->next) | |
7682 | { | |
535b785f | 7683 | if (!section->segment_mark) |
84d1d650 L |
7684 | goto rewrite; |
7685 | else | |
7686 | section->segment_mark = FALSE; | |
7687 | } | |
7688 | ||
7689 | return copy_elf_program_header (ibfd, obfd); | |
7690 | } | |
7691 | ||
dc1e8a47 | 7692 | rewrite: |
f1d85785 L |
7693 | if (ibfd->xvec == obfd->xvec) |
7694 | { | |
7695 | /* When rewriting program header, set the output maxpagesize to | |
7696 | the maximum alignment of input PT_LOAD segments. */ | |
7697 | Elf_Internal_Phdr *segment; | |
7698 | unsigned int i; | |
7699 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7700 | bfd_vma maxpagesize = 0; | |
7701 | ||
7702 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7703 | i < num_segments; | |
7704 | i++, segment++) | |
7705 | if (segment->p_type == PT_LOAD | |
7706 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7707 | { |
7708 | /* PR 17512: file: f17299af. */ | |
7709 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7710 | /* xgettext:c-format */ |
2dcf00ce AM |
7711 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7712 | PRIx64 " is too large"), | |
7713 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7714 | else |
7715 | maxpagesize = segment->p_align; | |
7716 | } | |
f1d85785 L |
7717 | |
7718 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7719 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7720 | } | |
7721 | ||
84d1d650 L |
7722 | return rewrite_elf_program_header (ibfd, obfd); |
7723 | } | |
7724 | ||
ccd2ec6a L |
7725 | /* Initialize private output section information from input section. */ |
7726 | ||
7727 | bfd_boolean | |
7728 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7729 | asection *isec, | |
7730 | bfd *obfd, | |
7731 | asection *osec, | |
7732 | struct bfd_link_info *link_info) | |
7733 | ||
7734 | { | |
7735 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7736 | bfd_boolean final_link = (link_info != NULL |
7737 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7738 | |
7739 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7740 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7741 | return TRUE; | |
7742 | ||
ba85c43e NC |
7743 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7744 | ||
8c803a2d AM |
7745 | /* If this is a known ABI section, ELF section type and flags may |
7746 | have been set up when OSEC was created. For normal sections we | |
7747 | allow the user to override the type and flags other than | |
7748 | SHF_MASKOS and SHF_MASKPROC. */ | |
7749 | if (elf_section_type (osec) == SHT_PROGBITS | |
7750 | || elf_section_type (osec) == SHT_NOTE | |
7751 | || elf_section_type (osec) == SHT_NOBITS) | |
7752 | elf_section_type (osec) = SHT_NULL; | |
7753 | /* For objcopy and relocatable link, copy the ELF section type from | |
7754 | the input file if the BFD section flags are the same. (If they | |
7755 | are different the user may be doing something like | |
7756 | "objcopy --set-section-flags .text=alloc,data".) For a final | |
7757 | link allow some flags that the linker clears to differ. */ | |
42bb2e33 | 7758 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7759 | && (osec->flags == isec->flags |
7760 | || (final_link | |
7761 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7762 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7763 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7764 | |
7765 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
8c803a2d AM |
7766 | elf_section_flags (osec) = (elf_section_flags (isec) |
7767 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7768 | |
a91e1603 | 7769 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7770 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7771 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7772 | elf_section_data (osec)->this_hdr.sh_info |
7773 | = elf_section_data (isec)->this_hdr.sh_info; | |
7774 | ||
ccd2ec6a L |
7775 | /* Set things up for objcopy and relocatable link. The output |
7776 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7777 | to the input group members. Ignore linker created group section. | |
7778 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7779 | if ((link_info == NULL |
7780 | || !link_info->resolve_section_groups) | |
7781 | && (elf_sec_group (isec) == NULL | |
7782 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7783 | { |
7bdf4127 AB |
7784 | if (elf_section_flags (isec) & SHF_GROUP) |
7785 | elf_section_flags (osec) |= SHF_GROUP; | |
7786 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7787 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7788 | } |
7789 | ||
7bdf4127 AB |
7790 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7791 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7792 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7793 | & SHF_COMPRESSED); | |
7794 | ||
ccd2ec6a L |
7795 | ihdr = &elf_section_data (isec)->this_hdr; |
7796 | ||
7797 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7798 | don't use the output section of the linked-to section since it | |
7799 | may be NULL at this point. */ | |
7800 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7801 | { | |
7802 | ohdr = &elf_section_data (osec)->this_hdr; | |
7803 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7804 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7805 | } | |
7806 | ||
7807 | osec->use_rela_p = isec->use_rela_p; | |
7808 | ||
7809 | return TRUE; | |
7810 | } | |
7811 | ||
252b5132 RH |
7812 | /* Copy private section information. This copies over the entsize |
7813 | field, and sometimes the info field. */ | |
7814 | ||
b34976b6 | 7815 | bfd_boolean |
217aa764 AM |
7816 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7817 | asection *isec, | |
7818 | bfd *obfd, | |
7819 | asection *osec) | |
252b5132 RH |
7820 | { |
7821 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7822 | ||
7823 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7824 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7825 | return TRUE; |
252b5132 | 7826 | |
252b5132 RH |
7827 | ihdr = &elf_section_data (isec)->this_hdr; |
7828 | ohdr = &elf_section_data (osec)->this_hdr; | |
7829 | ||
7830 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7831 | ||
7832 | if (ihdr->sh_type == SHT_SYMTAB | |
7833 | || ihdr->sh_type == SHT_DYNSYM | |
7834 | || ihdr->sh_type == SHT_GNU_verneed | |
7835 | || ihdr->sh_type == SHT_GNU_verdef) | |
7836 | ohdr->sh_info = ihdr->sh_info; | |
7837 | ||
ccd2ec6a L |
7838 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7839 | NULL); | |
252b5132 RH |
7840 | } |
7841 | ||
d0bf826b AM |
7842 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7843 | necessary if we are removing either the SHT_GROUP section or any of | |
7844 | the group member sections. DISCARDED is the value that a section's | |
7845 | output_section has if the section will be discarded, NULL when this | |
7846 | function is called from objcopy, bfd_abs_section_ptr when called | |
7847 | from the linker. */ | |
80fccad2 BW |
7848 | |
7849 | bfd_boolean | |
d0bf826b | 7850 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7851 | { |
30288845 AM |
7852 | asection *isec; |
7853 | ||
30288845 | 7854 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7855 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7856 | { |
7857 | asection *first = elf_next_in_group (isec); | |
7858 | asection *s = first; | |
d0bf826b AM |
7859 | bfd_size_type removed = 0; |
7860 | ||
30288845 AM |
7861 | while (s != NULL) |
7862 | { | |
415f38a6 AM |
7863 | /* If this member section is being output but the |
7864 | SHT_GROUP section is not, then clear the group info | |
7865 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7866 | if (s->output_section != discarded |
7867 | && isec->output_section == discarded) | |
30288845 AM |
7868 | { |
7869 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7870 | elf_group_name (s->output_section) = NULL; | |
7871 | } | |
415f38a6 AM |
7872 | /* Conversely, if the member section is not being output |
7873 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7874 | else if (s->output_section == discarded |
7875 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7876 | { |
7877 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7878 | removed += 4; | |
7879 | if (elf_sec->rel.hdr != NULL | |
7880 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7881 | removed += 4; | |
7882 | if (elf_sec->rela.hdr != NULL | |
7883 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7884 | removed += 4; | |
7885 | } | |
30288845 AM |
7886 | s = elf_next_in_group (s); |
7887 | if (s == first) | |
7888 | break; | |
7889 | } | |
d0bf826b AM |
7890 | if (removed != 0) |
7891 | { | |
7892 | if (discarded != NULL) | |
7893 | { | |
7894 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7895 | adjust the input section size. */ |
d0bf826b AM |
7896 | if (isec->rawsize == 0) |
7897 | isec->rawsize = isec->size; | |
7898 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7899 | if (isec->size <= 4) |
7900 | { | |
7901 | isec->size = 0; | |
7902 | isec->flags |= SEC_EXCLUDE; | |
7903 | } | |
d0bf826b AM |
7904 | } |
7905 | else | |
7906 | { | |
7907 | /* Adjust the output section size when called from | |
7908 | objcopy. */ | |
7909 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7910 | if (isec->output_section->size <= 4) |
7911 | { | |
7912 | isec->output_section->size = 0; | |
7913 | isec->output_section->flags |= SEC_EXCLUDE; | |
7914 | } | |
d0bf826b AM |
7915 | } |
7916 | } | |
30288845 AM |
7917 | } |
7918 | ||
80fccad2 BW |
7919 | return TRUE; |
7920 | } | |
7921 | ||
d0bf826b AM |
7922 | /* Copy private header information. */ |
7923 | ||
7924 | bfd_boolean | |
7925 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7926 | { | |
7927 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7928 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7929 | return TRUE; | |
7930 | ||
7931 | /* Copy over private BFD data if it has not already been copied. | |
7932 | This must be done here, rather than in the copy_private_bfd_data | |
7933 | entry point, because the latter is called after the section | |
7934 | contents have been set, which means that the program headers have | |
7935 | already been worked out. */ | |
12bd6957 | 7936 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7937 | { |
7938 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7939 | return FALSE; | |
7940 | } | |
7941 | ||
7942 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7943 | } | |
7944 | ||
252b5132 RH |
7945 | /* Copy private symbol information. If this symbol is in a section |
7946 | which we did not map into a BFD section, try to map the section | |
7947 | index correctly. We use special macro definitions for the mapped | |
7948 | section indices; these definitions are interpreted by the | |
7949 | swap_out_syms function. */ | |
7950 | ||
9ad5cbcf AM |
7951 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7952 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7953 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7954 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7955 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7956 | |
b34976b6 | 7957 | bfd_boolean |
217aa764 AM |
7958 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7959 | asymbol *isymarg, | |
7960 | bfd *obfd, | |
7961 | asymbol *osymarg) | |
252b5132 RH |
7962 | { |
7963 | elf_symbol_type *isym, *osym; | |
7964 | ||
7965 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7966 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7967 | return TRUE; |
252b5132 RH |
7968 | |
7969 | isym = elf_symbol_from (ibfd, isymarg); | |
7970 | osym = elf_symbol_from (obfd, osymarg); | |
7971 | ||
7972 | if (isym != NULL | |
8424d8f5 | 7973 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7974 | && osym != NULL |
7975 | && bfd_is_abs_section (isym->symbol.section)) | |
7976 | { | |
7977 | unsigned int shndx; | |
7978 | ||
7979 | shndx = isym->internal_elf_sym.st_shndx; | |
7980 | if (shndx == elf_onesymtab (ibfd)) | |
7981 | shndx = MAP_ONESYMTAB; | |
7982 | else if (shndx == elf_dynsymtab (ibfd)) | |
7983 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7984 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7985 | shndx = MAP_STRTAB; |
12bd6957 | 7986 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7987 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7988 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7989 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7990 | osym->internal_elf_sym.st_shndx = shndx; |
7991 | } | |
7992 | ||
b34976b6 | 7993 | return TRUE; |
252b5132 RH |
7994 | } |
7995 | ||
7996 | /* Swap out the symbols. */ | |
7997 | ||
b34976b6 | 7998 | static bfd_boolean |
217aa764 | 7999 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8000 | struct elf_strtab_hash **sttp, |
217aa764 | 8001 | int relocatable_p) |
252b5132 | 8002 | { |
9c5bfbb7 | 8003 | const struct elf_backend_data *bed; |
1f4361a7 | 8004 | unsigned int symcount; |
079e9a2f | 8005 | asymbol **syms; |
ef10c3ac | 8006 | struct elf_strtab_hash *stt; |
079e9a2f | 8007 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8008 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8009 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8010 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8011 | bfd_byte *outbound_syms; |
8012 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
8013 | unsigned long outbound_syms_index; |
8014 | unsigned long outbound_shndx_index; | |
1f4361a7 | 8015 | unsigned int idx; |
12bd6957 | 8016 | unsigned int num_locals; |
1f4361a7 | 8017 | size_t amt; |
174fd7f9 | 8018 | bfd_boolean name_local_sections; |
252b5132 | 8019 | |
12bd6957 | 8020 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 8021 | return FALSE; |
252b5132 | 8022 | |
c044fabd | 8023 | /* Dump out the symtabs. */ |
ef10c3ac | 8024 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8025 | if (stt == NULL) |
b34976b6 | 8026 | return FALSE; |
252b5132 | 8027 | |
079e9a2f AM |
8028 | bed = get_elf_backend_data (abfd); |
8029 | symcount = bfd_get_symcount (abfd); | |
8030 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8031 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8032 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8033 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8034 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8035 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8036 | |
8037 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8038 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8039 | ||
ef10c3ac | 8040 | /* Allocate buffer to swap out the .strtab section. */ |
1f4361a7 AM |
8041 | if (_bfd_mul_overflow (symcount + 1, sizeof (*symstrtab), &amt) |
8042 | || (symstrtab = (struct elf_sym_strtab *) bfd_malloc (amt)) == NULL) | |
ef10c3ac | 8043 | { |
1f4361a7 | 8044 | bfd_set_error (bfd_error_no_memory); |
ef10c3ac L |
8045 | _bfd_elf_strtab_free (stt); |
8046 | return FALSE; | |
8047 | } | |
8048 | ||
1f4361a7 AM |
8049 | if (_bfd_mul_overflow (symcount + 1, bed->s->sizeof_sym, &amt) |
8050 | || (outbound_syms = (bfd_byte *) bfd_alloc (abfd, amt)) == NULL) | |
5ed6aba4 | 8051 | { |
1f4361a7 AM |
8052 | error_no_mem: |
8053 | bfd_set_error (bfd_error_no_memory); | |
8054 | error_return: | |
ef10c3ac | 8055 | free (symstrtab); |
1f4361a7 | 8056 | _bfd_elf_strtab_free (stt); |
5ed6aba4 NC |
8057 | return FALSE; |
8058 | } | |
217aa764 | 8059 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8060 | outbound_syms_index = 0; |
252b5132 | 8061 | |
9ad5cbcf | 8062 | outbound_shndx = NULL; |
ef10c3ac | 8063 | outbound_shndx_index = 0; |
6a40cf0c NC |
8064 | |
8065 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8066 | { |
6a40cf0c NC |
8067 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8068 | if (symtab_shndx_hdr->sh_name != 0) | |
8069 | { | |
1f4361a7 AM |
8070 | if (_bfd_mul_overflow (symcount + 1, |
8071 | sizeof (Elf_External_Sym_Shndx), &amt)) | |
8072 | goto error_no_mem; | |
8073 | outbound_shndx = (bfd_byte *) bfd_zalloc (abfd, amt); | |
6a40cf0c NC |
8074 | if (outbound_shndx == NULL) |
8075 | goto error_return; | |
5ed6aba4 | 8076 | |
6a40cf0c NC |
8077 | symtab_shndx_hdr->contents = outbound_shndx; |
8078 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8079 | symtab_shndx_hdr->sh_size = amt; | |
8080 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8081 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8082 | } | |
8083 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8084 | } |
8085 | ||
589e6347 | 8086 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8087 | { |
8088 | /* Fill in zeroth symbol and swap it out. */ | |
8089 | Elf_Internal_Sym sym; | |
8090 | sym.st_name = 0; | |
8091 | sym.st_value = 0; | |
8092 | sym.st_size = 0; | |
8093 | sym.st_info = 0; | |
8094 | sym.st_other = 0; | |
8095 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8096 | sym.st_target_internal = 0; |
ef10c3ac L |
8097 | symstrtab[0].sym = sym; |
8098 | symstrtab[0].dest_index = outbound_syms_index; | |
8099 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8100 | outbound_syms_index++; | |
9ad5cbcf | 8101 | if (outbound_shndx != NULL) |
ef10c3ac | 8102 | outbound_shndx_index++; |
079e9a2f | 8103 | } |
252b5132 | 8104 | |
174fd7f9 RS |
8105 | name_local_sections |
8106 | = (bed->elf_backend_name_local_section_symbols | |
8107 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8108 | ||
079e9a2f | 8109 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8110 | for (idx = 0; idx < symcount;) |
252b5132 | 8111 | { |
252b5132 | 8112 | Elf_Internal_Sym sym; |
079e9a2f AM |
8113 | bfd_vma value = syms[idx]->value; |
8114 | elf_symbol_type *type_ptr; | |
8115 | flagword flags = syms[idx]->flags; | |
8116 | int type; | |
252b5132 | 8117 | |
174fd7f9 RS |
8118 | if (!name_local_sections |
8119 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8120 | { |
8121 | /* Local section symbols have no name. */ | |
ef10c3ac | 8122 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8123 | } |
8124 | else | |
8125 | { | |
ef10c3ac L |
8126 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8127 | to get the final offset for st_name. */ | |
8128 | sym.st_name | |
8129 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
8130 | FALSE); | |
079e9a2f | 8131 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8132 | goto error_return; |
079e9a2f | 8133 | } |
252b5132 | 8134 | |
079e9a2f | 8135 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 8136 | |
079e9a2f AM |
8137 | if ((flags & BSF_SECTION_SYM) == 0 |
8138 | && bfd_is_com_section (syms[idx]->section)) | |
8139 | { | |
8140 | /* ELF common symbols put the alignment into the `value' field, | |
8141 | and the size into the `size' field. This is backwards from | |
8142 | how BFD handles it, so reverse it here. */ | |
8143 | sym.st_size = value; | |
8144 | if (type_ptr == NULL | |
8145 | || type_ptr->internal_elf_sym.st_value == 0) | |
8146 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8147 | else | |
8148 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8149 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8150 | (abfd, syms[idx]->section); | |
8151 | } | |
8152 | else | |
8153 | { | |
8154 | asection *sec = syms[idx]->section; | |
cb33740c | 8155 | unsigned int shndx; |
252b5132 | 8156 | |
079e9a2f AM |
8157 | if (sec->output_section) |
8158 | { | |
8159 | value += sec->output_offset; | |
8160 | sec = sec->output_section; | |
8161 | } | |
589e6347 | 8162 | |
079e9a2f AM |
8163 | /* Don't add in the section vma for relocatable output. */ |
8164 | if (! relocatable_p) | |
8165 | value += sec->vma; | |
8166 | sym.st_value = value; | |
8167 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8168 | ||
8169 | if (bfd_is_abs_section (sec) | |
8170 | && type_ptr != NULL | |
8171 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8172 | { | |
8173 | /* This symbol is in a real ELF section which we did | |
8174 | not create as a BFD section. Undo the mapping done | |
8175 | by copy_private_symbol_data. */ | |
8176 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8177 | switch (shndx) | |
8178 | { | |
8179 | case MAP_ONESYMTAB: | |
8180 | shndx = elf_onesymtab (abfd); | |
8181 | break; | |
8182 | case MAP_DYNSYMTAB: | |
8183 | shndx = elf_dynsymtab (abfd); | |
8184 | break; | |
8185 | case MAP_STRTAB: | |
12bd6957 | 8186 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8187 | break; |
8188 | case MAP_SHSTRTAB: | |
12bd6957 | 8189 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8190 | break; |
9ad5cbcf | 8191 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8192 | if (elf_symtab_shndx_list (abfd)) |
8193 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8194 | break; |
00e49dff NC |
8195 | case SHN_COMMON: |
8196 | case SHN_ABS: | |
15bc576a | 8197 | shndx = SHN_ABS; |
079e9a2f | 8198 | break; |
00e49dff NC |
8199 | default: |
8200 | if (shndx >= SHN_LOPROC && shndx <= SHN_HIOS) | |
8201 | { | |
8202 | if (bed->symbol_section_index) | |
8203 | shndx = bed->symbol_section_index (abfd, type_ptr); | |
8204 | /* Otherwise just leave the index alone. */ | |
8205 | } | |
8206 | else | |
8207 | { | |
8208 | if (shndx > SHN_HIOS && shndx < SHN_HIRESERVE) | |
8209 | _bfd_error_handler (_("%pB: \ | |
8210 | Unable to handle section index %x in ELF symbol. Using ABS instead."), | |
8211 | abfd, shndx); | |
8212 | shndx = SHN_ABS; | |
8213 | } | |
8214 | break; | |
079e9a2f AM |
8215 | } |
8216 | } | |
8217 | else | |
8218 | { | |
8219 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8220 | |
cb33740c | 8221 | if (shndx == SHN_BAD) |
079e9a2f AM |
8222 | { |
8223 | asection *sec2; | |
8224 | ||
8225 | /* Writing this would be a hell of a lot easier if | |
8226 | we had some decent documentation on bfd, and | |
8227 | knew what to expect of the library, and what to | |
8228 | demand of applications. For example, it | |
8229 | appears that `objcopy' might not set the | |
8230 | section of a symbol to be a section that is | |
8231 | actually in the output file. */ | |
8232 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8233 | if (sec2 != NULL) |
8234 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8235 | if (shndx == SHN_BAD) | |
589e6347 | 8236 | { |
695344c0 | 8237 | /* xgettext:c-format */ |
9793eb77 AM |
8238 | _bfd_error_handler |
8239 | (_("unable to find equivalent output section" | |
8240 | " for symbol '%s' from section '%s'"), | |
8241 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8242 | sec->name); | |
811072d8 | 8243 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8244 | goto error_return; |
589e6347 | 8245 | } |
079e9a2f AM |
8246 | } |
8247 | } | |
252b5132 | 8248 | |
079e9a2f AM |
8249 | sym.st_shndx = shndx; |
8250 | } | |
252b5132 | 8251 | |
13ae64f3 JJ |
8252 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8253 | type = STT_TLS; | |
d8045f23 NC |
8254 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8255 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8256 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8257 | type = STT_FUNC; |
8258 | else if ((flags & BSF_OBJECT) != 0) | |
8259 | type = STT_OBJECT; | |
d9352518 DB |
8260 | else if ((flags & BSF_RELC) != 0) |
8261 | type = STT_RELC; | |
8262 | else if ((flags & BSF_SRELC) != 0) | |
8263 | type = STT_SRELC; | |
079e9a2f AM |
8264 | else |
8265 | type = STT_NOTYPE; | |
252b5132 | 8266 | |
13ae64f3 JJ |
8267 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8268 | type = STT_TLS; | |
8269 | ||
589e6347 | 8270 | /* Processor-specific types. */ |
079e9a2f AM |
8271 | if (type_ptr != NULL |
8272 | && bed->elf_backend_get_symbol_type) | |
8273 | type = ((*bed->elf_backend_get_symbol_type) | |
8274 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8275 | |
079e9a2f AM |
8276 | if (flags & BSF_SECTION_SYM) |
8277 | { | |
8278 | if (flags & BSF_GLOBAL) | |
8279 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8280 | else | |
8281 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8282 | } | |
8283 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8284 | { |
b8871f35 L |
8285 | if (type != STT_TLS) |
8286 | { | |
8287 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8288 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8289 | ? STT_COMMON : STT_OBJECT); | |
8290 | else | |
8291 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8292 | ? STT_COMMON : STT_OBJECT); | |
8293 | } | |
8294 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8295 | } |
079e9a2f AM |
8296 | else if (bfd_is_und_section (syms[idx]->section)) |
8297 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8298 | ? STB_WEAK | |
8299 | : STB_GLOBAL), | |
8300 | type); | |
8301 | else if (flags & BSF_FILE) | |
8302 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8303 | else | |
8304 | { | |
8305 | int bind = STB_LOCAL; | |
252b5132 | 8306 | |
079e9a2f AM |
8307 | if (flags & BSF_LOCAL) |
8308 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8309 | else if (flags & BSF_GNU_UNIQUE) |
8310 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8311 | else if (flags & BSF_WEAK) |
8312 | bind = STB_WEAK; | |
8313 | else if (flags & BSF_GLOBAL) | |
8314 | bind = STB_GLOBAL; | |
252b5132 | 8315 | |
079e9a2f AM |
8316 | sym.st_info = ELF_ST_INFO (bind, type); |
8317 | } | |
252b5132 | 8318 | |
079e9a2f | 8319 | if (type_ptr != NULL) |
35fc36a8 RS |
8320 | { |
8321 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8322 | sym.st_target_internal | |
8323 | = type_ptr->internal_elf_sym.st_target_internal; | |
8324 | } | |
079e9a2f | 8325 | else |
35fc36a8 RS |
8326 | { |
8327 | sym.st_other = 0; | |
8328 | sym.st_target_internal = 0; | |
8329 | } | |
252b5132 | 8330 | |
ef10c3ac L |
8331 | idx++; |
8332 | symstrtab[idx].sym = sym; | |
8333 | symstrtab[idx].dest_index = outbound_syms_index; | |
8334 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8335 | ||
8336 | outbound_syms_index++; | |
9ad5cbcf | 8337 | if (outbound_shndx != NULL) |
ef10c3ac L |
8338 | outbound_shndx_index++; |
8339 | } | |
8340 | ||
8341 | /* Finalize the .strtab section. */ | |
8342 | _bfd_elf_strtab_finalize (stt); | |
8343 | ||
8344 | /* Swap out the .strtab section. */ | |
8345 | for (idx = 0; idx <= symcount; idx++) | |
8346 | { | |
8347 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8348 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8349 | elfsym->sym.st_name = 0; | |
8350 | else | |
8351 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8352 | elfsym->sym.st_name); | |
8353 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8354 | (outbound_syms | |
8355 | + (elfsym->dest_index | |
8356 | * bed->s->sizeof_sym)), | |
8357 | (outbound_shndx | |
8358 | + (elfsym->destshndx_index | |
8359 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8360 | } |
ef10c3ac | 8361 | free (symstrtab); |
252b5132 | 8362 | |
079e9a2f | 8363 | *sttp = stt; |
ef10c3ac | 8364 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8365 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8366 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8367 | symstrtab_hdr->sh_addr = 0; |
8368 | symstrtab_hdr->sh_entsize = 0; | |
8369 | symstrtab_hdr->sh_link = 0; | |
8370 | symstrtab_hdr->sh_info = 0; | |
8371 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8372 | |
b34976b6 | 8373 | return TRUE; |
252b5132 RH |
8374 | } |
8375 | ||
8376 | /* Return the number of bytes required to hold the symtab vector. | |
8377 | ||
8378 | Note that we base it on the count plus 1, since we will null terminate | |
8379 | the vector allocated based on this size. However, the ELF symbol table | |
8380 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8381 | ||
8382 | long | |
217aa764 | 8383 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8384 | { |
3a551c7a | 8385 | bfd_size_type symcount; |
252b5132 RH |
8386 | long symtab_size; |
8387 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8388 | ||
8389 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8390 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8391 | { | |
8392 | bfd_set_error (bfd_error_file_too_big); | |
8393 | return -1; | |
8394 | } | |
b99d1833 AM |
8395 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8396 | if (symcount > 0) | |
8397 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8398 | |
8399 | return symtab_size; | |
8400 | } | |
8401 | ||
8402 | long | |
217aa764 | 8403 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8404 | { |
3a551c7a | 8405 | bfd_size_type symcount; |
252b5132 RH |
8406 | long symtab_size; |
8407 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8408 | ||
8409 | if (elf_dynsymtab (abfd) == 0) | |
8410 | { | |
8411 | bfd_set_error (bfd_error_invalid_operation); | |
8412 | return -1; | |
8413 | } | |
8414 | ||
8415 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8416 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8417 | { | |
8418 | bfd_set_error (bfd_error_file_too_big); | |
8419 | return -1; | |
8420 | } | |
b99d1833 AM |
8421 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8422 | if (symcount > 0) | |
8423 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8424 | |
8425 | return symtab_size; | |
8426 | } | |
8427 | ||
8428 | long | |
217aa764 AM |
8429 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8430 | sec_ptr asect) | |
252b5132 | 8431 | { |
242a1159 | 8432 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8433 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8434 | { | |
8435 | bfd_set_error (bfd_error_file_too_big); | |
8436 | return -1; | |
8437 | } | |
242a1159 | 8438 | #endif |
252b5132 RH |
8439 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8440 | } | |
8441 | ||
8442 | /* Canonicalize the relocs. */ | |
8443 | ||
8444 | long | |
217aa764 AM |
8445 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8446 | sec_ptr section, | |
8447 | arelent **relptr, | |
8448 | asymbol **symbols) | |
252b5132 RH |
8449 | { |
8450 | arelent *tblptr; | |
8451 | unsigned int i; | |
9c5bfbb7 | 8452 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8453 | |
b34976b6 | 8454 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8455 | return -1; |
8456 | ||
8457 | tblptr = section->relocation; | |
8458 | for (i = 0; i < section->reloc_count; i++) | |
8459 | *relptr++ = tblptr++; | |
8460 | ||
8461 | *relptr = NULL; | |
8462 | ||
8463 | return section->reloc_count; | |
8464 | } | |
8465 | ||
8466 | long | |
6cee3f79 | 8467 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8468 | { |
9c5bfbb7 | 8469 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8470 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8471 | |
8472 | if (symcount >= 0) | |
ed48ec2e | 8473 | abfd->symcount = symcount; |
252b5132 RH |
8474 | return symcount; |
8475 | } | |
8476 | ||
8477 | long | |
217aa764 AM |
8478 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8479 | asymbol **allocation) | |
252b5132 | 8480 | { |
9c5bfbb7 | 8481 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8482 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8483 | |
8484 | if (symcount >= 0) | |
ed48ec2e | 8485 | abfd->dynsymcount = symcount; |
1f70368c | 8486 | return symcount; |
252b5132 RH |
8487 | } |
8488 | ||
8615f3f2 AM |
8489 | /* Return the size required for the dynamic reloc entries. Any loadable |
8490 | section that was actually installed in the BFD, and has type SHT_REL | |
8491 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8492 | dynamic reloc section. */ | |
252b5132 RH |
8493 | |
8494 | long | |
217aa764 | 8495 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8496 | { |
3a551c7a | 8497 | bfd_size_type count; |
252b5132 RH |
8498 | asection *s; |
8499 | ||
8500 | if (elf_dynsymtab (abfd) == 0) | |
8501 | { | |
8502 | bfd_set_error (bfd_error_invalid_operation); | |
8503 | return -1; | |
8504 | } | |
8505 | ||
3a551c7a | 8506 | count = 1; |
252b5132 | 8507 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8508 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8509 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8510 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a AM |
8511 | { |
8512 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; | |
8513 | if (count > LONG_MAX / sizeof (arelent *)) | |
8514 | { | |
8515 | bfd_set_error (bfd_error_file_too_big); | |
8516 | return -1; | |
8517 | } | |
8518 | } | |
8519 | return count * sizeof (arelent *); | |
252b5132 RH |
8520 | } |
8521 | ||
8615f3f2 AM |
8522 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8523 | dynamic relocations as a single block, although they are actually | |
8524 | associated with particular sections; the interface, which was | |
8525 | designed for SunOS style shared libraries, expects that there is only | |
8526 | one set of dynamic relocs. Any loadable section that was actually | |
8527 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8528 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8529 | |
8530 | long | |
217aa764 AM |
8531 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8532 | arelent **storage, | |
8533 | asymbol **syms) | |
252b5132 | 8534 | { |
217aa764 | 8535 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8536 | asection *s; |
8537 | long ret; | |
8538 | ||
8539 | if (elf_dynsymtab (abfd) == 0) | |
8540 | { | |
8541 | bfd_set_error (bfd_error_invalid_operation); | |
8542 | return -1; | |
8543 | } | |
8544 | ||
8545 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8546 | ret = 0; | |
8547 | for (s = abfd->sections; s != NULL; s = s->next) | |
8548 | { | |
266b05cf | 8549 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8550 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8551 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8552 | { | |
8553 | arelent *p; | |
8554 | long count, i; | |
8555 | ||
b34976b6 | 8556 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8557 | return -1; |
eea6121a | 8558 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8559 | p = s->relocation; |
8560 | for (i = 0; i < count; i++) | |
8561 | *storage++ = p++; | |
8562 | ret += count; | |
8563 | } | |
8564 | } | |
8565 | ||
8566 | *storage = NULL; | |
8567 | ||
8568 | return ret; | |
8569 | } | |
8570 | \f | |
8571 | /* Read in the version information. */ | |
8572 | ||
b34976b6 | 8573 | bfd_boolean |
fc0e6df6 | 8574 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8575 | { |
8576 | bfd_byte *contents = NULL; | |
fc0e6df6 | 8577 | unsigned int freeidx = 0; |
1f4361a7 | 8578 | size_t amt; |
fc0e6df6 PB |
8579 | |
8580 | if (elf_dynverref (abfd) != 0) | |
8581 | { | |
8582 | Elf_Internal_Shdr *hdr; | |
8583 | Elf_External_Verneed *everneed; | |
8584 | Elf_Internal_Verneed *iverneed; | |
8585 | unsigned int i; | |
d0fb9a8d | 8586 | bfd_byte *contents_end; |
fc0e6df6 PB |
8587 | |
8588 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8589 | ||
bd61e135 AM |
8590 | if (hdr->sh_info == 0 |
8591 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8592 | { |
dc1e8a47 | 8593 | error_return_bad_verref: |
4eca0228 | 8594 | _bfd_error_handler |
871b3ab2 | 8595 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8596 | bfd_set_error (bfd_error_bad_value); |
dc1e8a47 | 8597 | error_return_verref: |
d0fb9a8d JJ |
8598 | elf_tdata (abfd)->verref = NULL; |
8599 | elf_tdata (abfd)->cverrefs = 0; | |
8600 | goto error_return; | |
8601 | } | |
601a03ba | 8602 | |
2bb3687b AM |
8603 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
8604 | goto error_return_verref; | |
8605 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); | |
8606 | if (contents == NULL) | |
d0fb9a8d | 8607 | goto error_return_verref; |
fc0e6df6 | 8608 | |
1f4361a7 AM |
8609 | if (_bfd_mul_overflow (hdr->sh_info, sizeof (Elf_Internal_Verneed), &amt)) |
8610 | { | |
8611 | bfd_set_error (bfd_error_file_too_big); | |
8612 | goto error_return_verref; | |
8613 | } | |
8614 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt); | |
601a03ba | 8615 | if (elf_tdata (abfd)->verref == NULL) |
d0fb9a8d JJ |
8616 | goto error_return_verref; |
8617 | ||
8618 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8619 | == sizeof (Elf_External_Vernaux)); | |
8620 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8621 | everneed = (Elf_External_Verneed *) contents; |
8622 | iverneed = elf_tdata (abfd)->verref; | |
8623 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8624 | { | |
8625 | Elf_External_Vernaux *evernaux; | |
8626 | Elf_Internal_Vernaux *ivernaux; | |
8627 | unsigned int j; | |
8628 | ||
8629 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8630 | ||
8631 | iverneed->vn_bfd = abfd; | |
8632 | ||
8633 | iverneed->vn_filename = | |
8634 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8635 | iverneed->vn_file); | |
8636 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8637 | goto error_return_bad_verref; |
fc0e6df6 | 8638 | |
d0fb9a8d JJ |
8639 | if (iverneed->vn_cnt == 0) |
8640 | iverneed->vn_auxptr = NULL; | |
8641 | else | |
8642 | { | |
1f4361a7 AM |
8643 | if (_bfd_mul_overflow (iverneed->vn_cnt, |
8644 | sizeof (Elf_Internal_Vernaux), &amt)) | |
8645 | { | |
8646 | bfd_set_error (bfd_error_file_too_big); | |
8647 | goto error_return_verref; | |
8648 | } | |
a50b1753 | 8649 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
1f4361a7 | 8650 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8651 | if (iverneed->vn_auxptr == NULL) |
8652 | goto error_return_verref; | |
8653 | } | |
8654 | ||
8655 | if (iverneed->vn_aux | |
8656 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8657 | goto error_return_bad_verref; |
fc0e6df6 PB |
8658 | |
8659 | evernaux = ((Elf_External_Vernaux *) | |
8660 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8661 | ivernaux = iverneed->vn_auxptr; | |
8662 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8663 | { | |
8664 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8665 | ||
8666 | ivernaux->vna_nodename = | |
8667 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8668 | ivernaux->vna_name); | |
8669 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8670 | goto error_return_bad_verref; |
fc0e6df6 | 8671 | |
25ff461f AM |
8672 | if (ivernaux->vna_other > freeidx) |
8673 | freeidx = ivernaux->vna_other; | |
8674 | ||
8675 | ivernaux->vna_nextptr = NULL; | |
8676 | if (ivernaux->vna_next == 0) | |
8677 | { | |
8678 | iverneed->vn_cnt = j + 1; | |
8679 | break; | |
8680 | } | |
fc0e6df6 PB |
8681 | if (j + 1 < iverneed->vn_cnt) |
8682 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8683 | |
d0fb9a8d JJ |
8684 | if (ivernaux->vna_next |
8685 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8686 | goto error_return_bad_verref; |
d0fb9a8d | 8687 | |
fc0e6df6 PB |
8688 | evernaux = ((Elf_External_Vernaux *) |
8689 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8690 | } |
8691 | ||
25ff461f AM |
8692 | iverneed->vn_nextref = NULL; |
8693 | if (iverneed->vn_next == 0) | |
8694 | break; | |
fc0e6df6 PB |
8695 | if (i + 1 < hdr->sh_info) |
8696 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8697 | |
d0fb9a8d JJ |
8698 | if (iverneed->vn_next |
8699 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8700 | goto error_return_bad_verref; |
d0fb9a8d | 8701 | |
fc0e6df6 PB |
8702 | everneed = ((Elf_External_Verneed *) |
8703 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8704 | } | |
25ff461f | 8705 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8706 | |
8707 | free (contents); | |
8708 | contents = NULL; | |
8709 | } | |
252b5132 RH |
8710 | |
8711 | if (elf_dynverdef (abfd) != 0) | |
8712 | { | |
8713 | Elf_Internal_Shdr *hdr; | |
8714 | Elf_External_Verdef *everdef; | |
8715 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8716 | Elf_Internal_Verdef *iverdefarr; |
8717 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8718 | unsigned int i; |
062e2358 | 8719 | unsigned int maxidx; |
d0fb9a8d | 8720 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8721 | |
8722 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8723 | ||
601a03ba AM |
8724 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8725 | { | |
8726 | error_return_bad_verdef: | |
4eca0228 | 8727 | _bfd_error_handler |
871b3ab2 | 8728 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8729 | bfd_set_error (bfd_error_bad_value); |
8730 | error_return_verdef: | |
8731 | elf_tdata (abfd)->verdef = NULL; | |
8732 | elf_tdata (abfd)->cverdefs = 0; | |
8733 | goto error_return; | |
8734 | } | |
8735 | ||
2bb3687b | 8736 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
601a03ba | 8737 | goto error_return_verdef; |
2bb3687b AM |
8738 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); |
8739 | if (contents == NULL) | |
601a03ba | 8740 | goto error_return_verdef; |
d0fb9a8d JJ |
8741 | |
8742 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8743 | >= sizeof (Elf_External_Verdaux)); | |
8744 | contents_end_def = contents + hdr->sh_size | |
8745 | - sizeof (Elf_External_Verdef); | |
8746 | contents_end_aux = contents + hdr->sh_size | |
8747 | - sizeof (Elf_External_Verdaux); | |
8748 | ||
f631889e UD |
8749 | /* We know the number of entries in the section but not the maximum |
8750 | index. Therefore we have to run through all entries and find | |
8751 | the maximum. */ | |
252b5132 | 8752 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8753 | maxidx = 0; |
8754 | for (i = 0; i < hdr->sh_info; ++i) | |
8755 | { | |
8756 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8757 | ||
601a03ba AM |
8758 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8759 | goto error_return_bad_verdef; | |
062e2358 AM |
8760 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8761 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8762 | |
25ff461f AM |
8763 | if (iverdefmem.vd_next == 0) |
8764 | break; | |
8765 | ||
d0fb9a8d JJ |
8766 | if (iverdefmem.vd_next |
8767 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8768 | goto error_return_bad_verdef; |
d0fb9a8d | 8769 | |
f631889e UD |
8770 | everdef = ((Elf_External_Verdef *) |
8771 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8772 | } | |
8773 | ||
fc0e6df6 PB |
8774 | if (default_imported_symver) |
8775 | { | |
8776 | if (freeidx > maxidx) | |
8777 | maxidx = ++freeidx; | |
8778 | else | |
8779 | freeidx = ++maxidx; | |
8780 | } | |
1f4361a7 AM |
8781 | if (_bfd_mul_overflow (maxidx, sizeof (Elf_Internal_Verdef), &amt)) |
8782 | { | |
8783 | bfd_set_error (bfd_error_file_too_big); | |
8784 | goto error_return_verdef; | |
8785 | } | |
8786 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e | 8787 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8788 | goto error_return_verdef; |
f631889e UD |
8789 | |
8790 | elf_tdata (abfd)->cverdefs = maxidx; | |
8791 | ||
8792 | everdef = (Elf_External_Verdef *) contents; | |
8793 | iverdefarr = elf_tdata (abfd)->verdef; | |
8794 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8795 | { |
8796 | Elf_External_Verdaux *everdaux; | |
8797 | Elf_Internal_Verdaux *iverdaux; | |
8798 | unsigned int j; | |
8799 | ||
f631889e UD |
8800 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8801 | ||
d0fb9a8d | 8802 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8803 | goto error_return_bad_verdef; |
d0fb9a8d | 8804 | |
f631889e | 8805 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8806 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8807 | |
8808 | iverdef->vd_bfd = abfd; | |
8809 | ||
d0fb9a8d JJ |
8810 | if (iverdef->vd_cnt == 0) |
8811 | iverdef->vd_auxptr = NULL; | |
8812 | else | |
8813 | { | |
1f4361a7 AM |
8814 | if (_bfd_mul_overflow (iverdef->vd_cnt, |
8815 | sizeof (Elf_Internal_Verdaux), &amt)) | |
8816 | { | |
8817 | bfd_set_error (bfd_error_file_too_big); | |
8818 | goto error_return_verdef; | |
8819 | } | |
a50b1753 | 8820 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
1f4361a7 | 8821 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8822 | if (iverdef->vd_auxptr == NULL) |
8823 | goto error_return_verdef; | |
8824 | } | |
8825 | ||
8826 | if (iverdef->vd_aux | |
8827 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8828 | goto error_return_bad_verdef; |
252b5132 RH |
8829 | |
8830 | everdaux = ((Elf_External_Verdaux *) | |
8831 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8832 | iverdaux = iverdef->vd_auxptr; | |
8833 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8834 | { | |
8835 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8836 | ||
8837 | iverdaux->vda_nodename = | |
8838 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8839 | iverdaux->vda_name); | |
8840 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8841 | goto error_return_bad_verdef; |
252b5132 | 8842 | |
25ff461f AM |
8843 | iverdaux->vda_nextptr = NULL; |
8844 | if (iverdaux->vda_next == 0) | |
8845 | { | |
8846 | iverdef->vd_cnt = j + 1; | |
8847 | break; | |
8848 | } | |
252b5132 RH |
8849 | if (j + 1 < iverdef->vd_cnt) |
8850 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8851 | |
d0fb9a8d JJ |
8852 | if (iverdaux->vda_next |
8853 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8854 | goto error_return_bad_verdef; |
d0fb9a8d | 8855 | |
252b5132 RH |
8856 | everdaux = ((Elf_External_Verdaux *) |
8857 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8858 | } | |
8859 | ||
595bce75 | 8860 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8861 | if (iverdef->vd_cnt) |
8862 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8863 | |
25ff461f AM |
8864 | iverdef->vd_nextdef = NULL; |
8865 | if (iverdef->vd_next == 0) | |
8866 | break; | |
d0fb9a8d | 8867 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8868 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8869 | |
8870 | everdef = ((Elf_External_Verdef *) | |
8871 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8872 | } | |
8873 | ||
8874 | free (contents); | |
8875 | contents = NULL; | |
8876 | } | |
fc0e6df6 | 8877 | else if (default_imported_symver) |
252b5132 | 8878 | { |
fc0e6df6 PB |
8879 | if (freeidx < 3) |
8880 | freeidx = 3; | |
8881 | else | |
8882 | freeidx++; | |
252b5132 | 8883 | |
1f4361a7 AM |
8884 | if (_bfd_mul_overflow (freeidx, sizeof (Elf_Internal_Verdef), &amt)) |
8885 | { | |
8886 | bfd_set_error (bfd_error_file_too_big); | |
8887 | goto error_return; | |
8888 | } | |
8889 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
fc0e6df6 | 8890 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8891 | goto error_return; |
8892 | ||
fc0e6df6 PB |
8893 | elf_tdata (abfd)->cverdefs = freeidx; |
8894 | } | |
252b5132 | 8895 | |
fc0e6df6 PB |
8896 | /* Create a default version based on the soname. */ |
8897 | if (default_imported_symver) | |
8898 | { | |
8899 | Elf_Internal_Verdef *iverdef; | |
8900 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8901 | |
5bb3703f | 8902 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8903 | |
fc0e6df6 PB |
8904 | iverdef->vd_version = VER_DEF_CURRENT; |
8905 | iverdef->vd_flags = 0; | |
8906 | iverdef->vd_ndx = freeidx; | |
8907 | iverdef->vd_cnt = 1; | |
252b5132 | 8908 | |
fc0e6df6 | 8909 | iverdef->vd_bfd = abfd; |
252b5132 | 8910 | |
fc0e6df6 PB |
8911 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8912 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8913 | goto error_return_verdef; |
fc0e6df6 | 8914 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8915 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8916 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8917 | if (iverdef->vd_auxptr == NULL) |
8918 | goto error_return_verdef; | |
252b5132 | 8919 | |
fc0e6df6 PB |
8920 | iverdaux = iverdef->vd_auxptr; |
8921 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8922 | } |
8923 | ||
b34976b6 | 8924 | return TRUE; |
252b5132 RH |
8925 | |
8926 | error_return: | |
5ed6aba4 | 8927 | if (contents != NULL) |
252b5132 | 8928 | free (contents); |
b34976b6 | 8929 | return FALSE; |
252b5132 RH |
8930 | } |
8931 | \f | |
8932 | asymbol * | |
217aa764 | 8933 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8934 | { |
8935 | elf_symbol_type *newsym; | |
8936 | ||
7a6e0d89 | 8937 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
8938 | if (!newsym) |
8939 | return NULL; | |
201159ec NC |
8940 | newsym->symbol.the_bfd = abfd; |
8941 | return &newsym->symbol; | |
252b5132 RH |
8942 | } |
8943 | ||
8944 | void | |
217aa764 AM |
8945 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8946 | asymbol *symbol, | |
8947 | symbol_info *ret) | |
252b5132 RH |
8948 | { |
8949 | bfd_symbol_info (symbol, ret); | |
8950 | } | |
8951 | ||
8952 | /* Return whether a symbol name implies a local symbol. Most targets | |
8953 | use this function for the is_local_label_name entry point, but some | |
8954 | override it. */ | |
8955 | ||
b34976b6 | 8956 | bfd_boolean |
217aa764 AM |
8957 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8958 | const char *name) | |
252b5132 RH |
8959 | { |
8960 | /* Normal local symbols start with ``.L''. */ | |
8961 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8962 | return TRUE; |
252b5132 RH |
8963 | |
8964 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8965 | DWARF debugging symbols starting with ``..''. */ | |
8966 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8967 | return TRUE; |
252b5132 RH |
8968 | |
8969 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8970 | emitting DWARF debugging output. I suspect this is actually a | |
8971 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8972 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8973 | underscore to be emitted on some ELF targets). For ease of use, | |
8974 | we treat such symbols as local. */ | |
8975 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8976 | return TRUE; |
252b5132 | 8977 | |
b1fa9dd6 NC |
8978 | /* Treat assembler generated fake symbols, dollar local labels and |
8979 | forward-backward labels (aka local labels) as locals. | |
8980 | These labels have the form: | |
8981 | ||
07d6d2b8 | 8982 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8983 | |
8984 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8985 | ||
8986 | Versions which start with .L will have already been matched above, | |
8987 | so we only need to match the rest. */ | |
8988 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8989 | { | |
8990 | bfd_boolean ret = FALSE; | |
8991 | const char * p; | |
8992 | char c; | |
8993 | ||
8994 | for (p = name + 2; (c = *p); p++) | |
8995 | { | |
8996 | if (c == 1 || c == 2) | |
8997 | { | |
8998 | if (c == 1 && p == name + 2) | |
8999 | /* A fake symbol. */ | |
9000 | return TRUE; | |
9001 | ||
9002 | /* FIXME: We are being paranoid here and treating symbols like | |
9003 | L0^Bfoo as if there were non-local, on the grounds that the | |
9004 | assembler will never generate them. But can any symbol | |
9005 | containing an ASCII value in the range 1-31 ever be anything | |
9006 | other than some kind of local ? */ | |
9007 | ret = TRUE; | |
9008 | } | |
9009 | ||
9010 | if (! ISDIGIT (c)) | |
9011 | { | |
9012 | ret = FALSE; | |
9013 | break; | |
9014 | } | |
9015 | } | |
9016 | return ret; | |
9017 | } | |
ffa54770 | 9018 | |
b34976b6 | 9019 | return FALSE; |
252b5132 RH |
9020 | } |
9021 | ||
9022 | alent * | |
217aa764 AM |
9023 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9024 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9025 | { |
9026 | abort (); | |
9027 | return NULL; | |
9028 | } | |
9029 | ||
b34976b6 | 9030 | bfd_boolean |
217aa764 AM |
9031 | _bfd_elf_set_arch_mach (bfd *abfd, |
9032 | enum bfd_architecture arch, | |
9033 | unsigned long machine) | |
252b5132 RH |
9034 | { |
9035 | /* If this isn't the right architecture for this backend, and this | |
9036 | isn't the generic backend, fail. */ | |
9037 | if (arch != get_elf_backend_data (abfd)->arch | |
9038 | && arch != bfd_arch_unknown | |
9039 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 9040 | return FALSE; |
252b5132 RH |
9041 | |
9042 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9043 | } | |
9044 | ||
d1fad7c6 NC |
9045 | /* Find the nearest line to a particular section and offset, |
9046 | for error reporting. */ | |
9047 | ||
b34976b6 | 9048 | bfd_boolean |
217aa764 | 9049 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9050 | asymbol **symbols, |
fb167eb2 | 9051 | asection *section, |
217aa764 AM |
9052 | bfd_vma offset, |
9053 | const char **filename_ptr, | |
9054 | const char **functionname_ptr, | |
fb167eb2 AM |
9055 | unsigned int *line_ptr, |
9056 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9057 | { |
b34976b6 | 9058 | bfd_boolean found; |
d1fad7c6 | 9059 | |
fb167eb2 | 9060 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9061 | filename_ptr, functionname_ptr, |
fb167eb2 | 9062 | line_ptr, discriminator_ptr, |
9defd221 | 9063 | dwarf_debug_sections, |
e7679060 AM |
9064 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
9065 | return TRUE; | |
9066 | ||
9067 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9068 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
9069 | { |
9070 | if (!*functionname_ptr) | |
e00e8198 AM |
9071 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9072 | *filename_ptr ? NULL : filename_ptr, | |
9073 | functionname_ptr); | |
b34976b6 | 9074 | return TRUE; |
d1fad7c6 NC |
9075 | } |
9076 | ||
9077 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9078 | &found, filename_ptr, |
9079 | functionname_ptr, line_ptr, | |
9080 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 9081 | return FALSE; |
dc43ada5 | 9082 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 9083 | return TRUE; |
d1fad7c6 NC |
9084 | |
9085 | if (symbols == NULL) | |
b34976b6 | 9086 | return FALSE; |
d1fad7c6 | 9087 | |
e00e8198 AM |
9088 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9089 | filename_ptr, functionname_ptr)) | |
b34976b6 | 9090 | return FALSE; |
d1fad7c6 | 9091 | |
252b5132 | 9092 | *line_ptr = 0; |
b34976b6 | 9093 | return TRUE; |
252b5132 RH |
9094 | } |
9095 | ||
5420f73d L |
9096 | /* Find the line for a symbol. */ |
9097 | ||
9098 | bfd_boolean | |
9099 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
9100 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9101 | { |
fb167eb2 AM |
9102 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9103 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9104 | dwarf_debug_sections, |
fb167eb2 | 9105 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9106 | } |
9107 | ||
4ab527b0 FF |
9108 | /* After a call to bfd_find_nearest_line, successive calls to |
9109 | bfd_find_inliner_info can be used to get source information about | |
9110 | each level of function inlining that terminated at the address | |
9111 | passed to bfd_find_nearest_line. Currently this is only supported | |
9112 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9113 | ||
9114 | bfd_boolean | |
9115 | _bfd_elf_find_inliner_info (bfd *abfd, | |
9116 | const char **filename_ptr, | |
9117 | const char **functionname_ptr, | |
9118 | unsigned int *line_ptr) | |
9119 | { | |
9120 | bfd_boolean found; | |
9121 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9122 | functionname_ptr, line_ptr, | |
9123 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9124 | return found; | |
9125 | } | |
9126 | ||
252b5132 | 9127 | int |
a6b96beb | 9128 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9129 | { |
8ded5a0f AM |
9130 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9131 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9132 | |
0e1862bb | 9133 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9134 | { |
12bd6957 | 9135 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9136 | |
62d7a5f6 AM |
9137 | if (phdr_size == (bfd_size_type) -1) |
9138 | { | |
9139 | struct elf_segment_map *m; | |
9140 | ||
9141 | phdr_size = 0; | |
12bd6957 | 9142 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9143 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9144 | |
62d7a5f6 AM |
9145 | if (phdr_size == 0) |
9146 | phdr_size = get_program_header_size (abfd, info); | |
9147 | } | |
8ded5a0f | 9148 | |
12bd6957 | 9149 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9150 | ret += phdr_size; |
9151 | } | |
9152 | ||
252b5132 RH |
9153 | return ret; |
9154 | } | |
9155 | ||
b34976b6 | 9156 | bfd_boolean |
217aa764 AM |
9157 | _bfd_elf_set_section_contents (bfd *abfd, |
9158 | sec_ptr section, | |
0f867abe | 9159 | const void *location, |
217aa764 AM |
9160 | file_ptr offset, |
9161 | bfd_size_type count) | |
252b5132 RH |
9162 | { |
9163 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9164 | file_ptr pos; |
252b5132 RH |
9165 | |
9166 | if (! abfd->output_has_begun | |
217aa764 | 9167 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 9168 | return FALSE; |
252b5132 | 9169 | |
0ce398f1 L |
9170 | if (!count) |
9171 | return TRUE; | |
9172 | ||
252b5132 | 9173 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9174 | if (hdr->sh_offset == (file_ptr) -1) |
9175 | { | |
1ff6de03 NA |
9176 | if (bfd_section_is_ctf (section)) |
9177 | /* Nothing to do with this section: the contents are generated | |
9178 | later. */ | |
9179 | return TRUE; | |
9180 | ||
0ce398f1 L |
9181 | /* We must compress this section. Write output to the buffer. */ |
9182 | unsigned char *contents = hdr->contents; | |
9183 | if ((offset + count) > hdr->sh_size | |
9184 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
9185 | || contents == NULL) | |
9186 | abort (); | |
9187 | memcpy (contents + offset, location, count); | |
9188 | return TRUE; | |
9189 | } | |
dc810e39 AM |
9190 | pos = hdr->sh_offset + offset; |
9191 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9192 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9193 | return FALSE; |
252b5132 | 9194 | |
b34976b6 | 9195 | return TRUE; |
252b5132 RH |
9196 | } |
9197 | ||
f3185997 | 9198 | bfd_boolean |
217aa764 AM |
9199 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9200 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9201 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9202 | { |
9203 | abort (); | |
f3185997 | 9204 | return FALSE; |
252b5132 RH |
9205 | } |
9206 | ||
252b5132 RH |
9207 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9208 | ||
b34976b6 | 9209 | bfd_boolean |
217aa764 | 9210 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9211 | { |
c044fabd | 9212 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9213 | |
9214 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9215 | { | |
9216 | bfd_reloc_code_real_type code; | |
9217 | reloc_howto_type *howto; | |
9218 | ||
9219 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9220 | equivalent ELF reloc. */ |
252b5132 RH |
9221 | |
9222 | if (areloc->howto->pc_relative) | |
9223 | { | |
9224 | switch (areloc->howto->bitsize) | |
9225 | { | |
9226 | case 8: | |
9227 | code = BFD_RELOC_8_PCREL; | |
9228 | break; | |
9229 | case 12: | |
9230 | code = BFD_RELOC_12_PCREL; | |
9231 | break; | |
9232 | case 16: | |
9233 | code = BFD_RELOC_16_PCREL; | |
9234 | break; | |
9235 | case 24: | |
9236 | code = BFD_RELOC_24_PCREL; | |
9237 | break; | |
9238 | case 32: | |
9239 | code = BFD_RELOC_32_PCREL; | |
9240 | break; | |
9241 | case 64: | |
9242 | code = BFD_RELOC_64_PCREL; | |
9243 | break; | |
9244 | default: | |
9245 | goto fail; | |
9246 | } | |
9247 | ||
9248 | howto = bfd_reloc_type_lookup (abfd, code); | |
9249 | ||
94698d01 | 9250 | if (howto && areloc->howto->pcrel_offset != howto->pcrel_offset) |
252b5132 RH |
9251 | { |
9252 | if (howto->pcrel_offset) | |
9253 | areloc->addend += areloc->address; | |
9254 | else | |
9255 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9256 | } | |
9257 | } | |
9258 | else | |
9259 | { | |
9260 | switch (areloc->howto->bitsize) | |
9261 | { | |
9262 | case 8: | |
9263 | code = BFD_RELOC_8; | |
9264 | break; | |
9265 | case 14: | |
9266 | code = BFD_RELOC_14; | |
9267 | break; | |
9268 | case 16: | |
9269 | code = BFD_RELOC_16; | |
9270 | break; | |
9271 | case 26: | |
9272 | code = BFD_RELOC_26; | |
9273 | break; | |
9274 | case 32: | |
9275 | code = BFD_RELOC_32; | |
9276 | break; | |
9277 | case 64: | |
9278 | code = BFD_RELOC_64; | |
9279 | break; | |
9280 | default: | |
9281 | goto fail; | |
9282 | } | |
9283 | ||
9284 | howto = bfd_reloc_type_lookup (abfd, code); | |
9285 | } | |
9286 | ||
9287 | if (howto) | |
9288 | areloc->howto = howto; | |
9289 | else | |
9290 | goto fail; | |
9291 | } | |
9292 | ||
b34976b6 | 9293 | return TRUE; |
252b5132 RH |
9294 | |
9295 | fail: | |
0aa13fee AM |
9296 | /* xgettext:c-format */ |
9297 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9298 | abfd, areloc->howto->name); | |
9aea1e31 | 9299 | bfd_set_error (bfd_error_sorry); |
b34976b6 | 9300 | return FALSE; |
252b5132 RH |
9301 | } |
9302 | ||
b34976b6 | 9303 | bfd_boolean |
217aa764 | 9304 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9305 | { |
d9071b0c TG |
9306 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9307 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9308 | { |
c0355132 | 9309 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9310 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9311 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9312 | } |
9313 | ||
9314 | return _bfd_generic_close_and_cleanup (abfd); | |
9315 | } | |
9316 | ||
9317 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9318 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9319 | range-checking to interfere. There is nothing else to do in processing | |
9320 | this reloc. */ | |
9321 | ||
9322 | bfd_reloc_status_type | |
217aa764 AM |
9323 | _bfd_elf_rel_vtable_reloc_fn |
9324 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9325 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9326 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9327 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9328 | { |
9329 | return bfd_reloc_ok; | |
9330 | } | |
252b5132 RH |
9331 | \f |
9332 | /* Elf core file support. Much of this only works on native | |
9333 | toolchains, since we rely on knowing the | |
9334 | machine-dependent procfs structure in order to pick | |
c044fabd | 9335 | out details about the corefile. */ |
252b5132 RH |
9336 | |
9337 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9338 | /* Needed for new procfs interface on sparc-solaris. */ |
9339 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9340 | # include <sys/procfs.h> |
9341 | #endif | |
9342 | ||
261b8d08 PA |
9343 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9344 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9345 | |
9346 | static int | |
217aa764 | 9347 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9348 | { |
261b8d08 PA |
9349 | int pid; |
9350 | ||
228e534f | 9351 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9352 | if (pid == 0) |
228e534f | 9353 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9354 | |
9355 | return pid; | |
252b5132 RH |
9356 | } |
9357 | ||
252b5132 RH |
9358 | /* If there isn't a section called NAME, make one, using |
9359 | data from SECT. Note, this function will generate a | |
9360 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9361 | overwrite it. */ |
252b5132 | 9362 | |
b34976b6 | 9363 | static bfd_boolean |
217aa764 | 9364 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9365 | { |
c044fabd | 9366 | asection *sect2; |
252b5132 RH |
9367 | |
9368 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9369 | return TRUE; |
252b5132 | 9370 | |
117ed4f8 | 9371 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9372 | if (sect2 == NULL) |
b34976b6 | 9373 | return FALSE; |
252b5132 | 9374 | |
eea6121a | 9375 | sect2->size = sect->size; |
252b5132 | 9376 | sect2->filepos = sect->filepos; |
252b5132 | 9377 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9378 | return TRUE; |
252b5132 RH |
9379 | } |
9380 | ||
bb0082d6 AM |
9381 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9382 | actually creates up to two pseudosections: | |
9383 | - For the single-threaded case, a section named NAME, unless | |
9384 | such a section already exists. | |
9385 | - For the multi-threaded case, a section named "NAME/PID", where | |
9386 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9387 | Both pseudosections have identical contents. */ |
b34976b6 | 9388 | bfd_boolean |
217aa764 AM |
9389 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9390 | char *name, | |
9391 | size_t size, | |
9392 | ufile_ptr filepos) | |
bb0082d6 AM |
9393 | { |
9394 | char buf[100]; | |
9395 | char *threaded_name; | |
d4c88bbb | 9396 | size_t len; |
bb0082d6 AM |
9397 | asection *sect; |
9398 | ||
9399 | /* Build the section name. */ | |
9400 | ||
9401 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9402 | len = strlen (buf) + 1; |
a50b1753 | 9403 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9404 | if (threaded_name == NULL) |
b34976b6 | 9405 | return FALSE; |
d4c88bbb | 9406 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9407 | |
117ed4f8 AM |
9408 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9409 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9410 | if (sect == NULL) |
b34976b6 | 9411 | return FALSE; |
eea6121a | 9412 | sect->size = size; |
bb0082d6 | 9413 | sect->filepos = filepos; |
bb0082d6 AM |
9414 | sect->alignment_power = 2; |
9415 | ||
936e320b | 9416 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9417 | } |
9418 | ||
58e07198 CZ |
9419 | static bfd_boolean |
9420 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9421 | size_t offs) | |
9422 | { | |
9423 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9424 | SEC_HAS_CONTENTS); | |
9425 | ||
9426 | if (sect == NULL) | |
9427 | return FALSE; | |
9428 | ||
9429 | sect->size = note->descsz - offs; | |
9430 | sect->filepos = note->descpos + offs; | |
9431 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9432 | ||
9433 | return TRUE; | |
9434 | } | |
9435 | ||
252b5132 | 9436 | /* prstatus_t exists on: |
4a938328 | 9437 | solaris 2.5+ |
252b5132 RH |
9438 | linux 2.[01] + glibc |
9439 | unixware 4.2 | |
9440 | */ | |
9441 | ||
9442 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9443 | |
b34976b6 | 9444 | static bfd_boolean |
217aa764 | 9445 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9446 | { |
eea6121a | 9447 | size_t size; |
7ee38065 | 9448 | int offset; |
252b5132 | 9449 | |
4a938328 MS |
9450 | if (note->descsz == sizeof (prstatus_t)) |
9451 | { | |
9452 | prstatus_t prstat; | |
252b5132 | 9453 | |
eea6121a | 9454 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9455 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9456 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9457 | |
fa49d224 NC |
9458 | /* Do not overwrite the core signal if it |
9459 | has already been set by another thread. */ | |
228e534f AM |
9460 | if (elf_tdata (abfd)->core->signal == 0) |
9461 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9462 | if (elf_tdata (abfd)->core->pid == 0) | |
9463 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9464 | |
4a938328 MS |
9465 | /* pr_who exists on: |
9466 | solaris 2.5+ | |
9467 | unixware 4.2 | |
9468 | pr_who doesn't exist on: | |
9469 | linux 2.[01] | |
9470 | */ | |
252b5132 | 9471 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9472 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9473 | #else |
228e534f | 9474 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9475 | #endif |
4a938328 | 9476 | } |
7ee38065 | 9477 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9478 | else if (note->descsz == sizeof (prstatus32_t)) |
9479 | { | |
9480 | /* 64-bit host, 32-bit corefile */ | |
9481 | prstatus32_t prstat; | |
9482 | ||
eea6121a | 9483 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9484 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9485 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9486 | ||
fa49d224 NC |
9487 | /* Do not overwrite the core signal if it |
9488 | has already been set by another thread. */ | |
228e534f AM |
9489 | if (elf_tdata (abfd)->core->signal == 0) |
9490 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9491 | if (elf_tdata (abfd)->core->pid == 0) | |
9492 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9493 | |
9494 | /* pr_who exists on: | |
9495 | solaris 2.5+ | |
9496 | unixware 4.2 | |
9497 | pr_who doesn't exist on: | |
9498 | linux 2.[01] | |
9499 | */ | |
7ee38065 | 9500 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9501 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9502 | #else |
228e534f | 9503 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9504 | #endif |
9505 | } | |
7ee38065 | 9506 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9507 | else |
9508 | { | |
9509 | /* Fail - we don't know how to handle any other | |
9510 | note size (ie. data object type). */ | |
b34976b6 | 9511 | return TRUE; |
4a938328 | 9512 | } |
252b5132 | 9513 | |
bb0082d6 | 9514 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9515 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9516 | size, note->descpos + offset); |
252b5132 RH |
9517 | } |
9518 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9519 | ||
bb0082d6 | 9520 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9521 | static bfd_boolean |
217aa764 AM |
9522 | elfcore_make_note_pseudosection (bfd *abfd, |
9523 | char *name, | |
9524 | Elf_Internal_Note *note) | |
252b5132 | 9525 | { |
936e320b AM |
9526 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9527 | note->descsz, note->descpos); | |
252b5132 RH |
9528 | } |
9529 | ||
ff08c6bb JB |
9530 | /* There isn't a consistent prfpregset_t across platforms, |
9531 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9532 | data structure apart. */ |
9533 | ||
b34976b6 | 9534 | static bfd_boolean |
217aa764 | 9535 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9536 | { |
9537 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9538 | } | |
9539 | ||
ff08c6bb | 9540 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9541 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9542 | literally. */ |
c044fabd | 9543 | |
b34976b6 | 9544 | static bfd_boolean |
217aa764 | 9545 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9546 | { |
9547 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9548 | } | |
9549 | ||
4339cae0 L |
9550 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9551 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9552 | contents literally. */ | |
9553 | ||
9554 | static bfd_boolean | |
9555 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9556 | { | |
9557 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9558 | } | |
9559 | ||
97753bd5 AM |
9560 | static bfd_boolean |
9561 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9562 | { | |
9563 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9564 | } | |
9565 | ||
89eeb0bc LM |
9566 | static bfd_boolean |
9567 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9568 | { | |
9569 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9570 | } | |
97753bd5 | 9571 | |
cb2366c1 EBM |
9572 | static bfd_boolean |
9573 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9574 | { | |
9575 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9576 | } | |
9577 | ||
9578 | static bfd_boolean | |
9579 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9580 | { | |
9581 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9582 | } | |
9583 | ||
9584 | static bfd_boolean | |
9585 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9586 | { | |
9587 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9588 | } | |
9589 | ||
9590 | static bfd_boolean | |
9591 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9592 | { | |
9593 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9594 | } | |
9595 | ||
9596 | static bfd_boolean | |
9597 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9598 | { | |
9599 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9600 | } | |
9601 | ||
9602 | static bfd_boolean | |
9603 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9604 | { | |
9605 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9606 | } | |
9607 | ||
9608 | static bfd_boolean | |
9609 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9610 | { | |
9611 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9612 | } | |
9613 | ||
9614 | static bfd_boolean | |
9615 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9616 | { | |
9617 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9618 | } | |
9619 | ||
9620 | static bfd_boolean | |
9621 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9622 | { | |
9623 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9624 | } | |
9625 | ||
9626 | static bfd_boolean | |
9627 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9628 | { | |
9629 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9630 | } | |
9631 | ||
9632 | static bfd_boolean | |
9633 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9634 | { | |
9635 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9636 | } | |
9637 | ||
9638 | static bfd_boolean | |
9639 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9640 | { | |
9641 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9642 | } | |
9643 | ||
9644 | static bfd_boolean | |
9645 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9646 | { | |
9647 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9648 | } | |
9649 | ||
0675e188 UW |
9650 | static bfd_boolean |
9651 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9652 | { | |
9653 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9654 | } | |
9655 | ||
d7eeb400 MS |
9656 | static bfd_boolean |
9657 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9658 | { | |
9659 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9660 | } | |
9661 | ||
9662 | static bfd_boolean | |
9663 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9664 | { | |
9665 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9666 | } | |
9667 | ||
9668 | static bfd_boolean | |
9669 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9670 | { | |
9671 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9672 | } | |
9673 | ||
9674 | static bfd_boolean | |
9675 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9676 | { | |
9677 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9678 | } | |
9679 | ||
9680 | static bfd_boolean | |
9681 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9682 | { | |
9683 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9684 | } | |
9685 | ||
355b81d9 UW |
9686 | static bfd_boolean |
9687 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9688 | { | |
9689 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9690 | } | |
9691 | ||
9692 | static bfd_boolean | |
9693 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9694 | { | |
9695 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9696 | } | |
9697 | ||
abb3f6cc NC |
9698 | static bfd_boolean |
9699 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9700 | { | |
9701 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9702 | } | |
9703 | ||
4ef9f41a AA |
9704 | static bfd_boolean |
9705 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9706 | { | |
9707 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9708 | } | |
9709 | ||
9710 | static bfd_boolean | |
9711 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9712 | { | |
9713 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9714 | } | |
9715 | ||
88ab90e8 AA |
9716 | static bfd_boolean |
9717 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9718 | { | |
9719 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9720 | } | |
9721 | ||
9722 | static bfd_boolean | |
9723 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9724 | { | |
9725 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9726 | } | |
9727 | ||
faa9a424 UW |
9728 | static bfd_boolean |
9729 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9730 | { | |
9731 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9732 | } | |
9733 | ||
652451f8 YZ |
9734 | static bfd_boolean |
9735 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9736 | { | |
9737 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9738 | } | |
9739 | ||
9740 | static bfd_boolean | |
9741 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9742 | { | |
9743 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9744 | } | |
9745 | ||
9746 | static bfd_boolean | |
9747 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9748 | { | |
9749 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9750 | } | |
9751 | ||
ad1cc4e4 AH |
9752 | static bfd_boolean |
9753 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9754 | { | |
9755 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9756 | } | |
9757 | ||
e6c3b5bf AH |
9758 | static bfd_boolean |
9759 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9760 | { | |
9761 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9762 | } | |
9763 | ||
252b5132 | 9764 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9765 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9766 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9767 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9768 | #endif | |
252b5132 RH |
9769 | #endif |
9770 | ||
9771 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9772 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9773 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9774 | typedef psinfo32_t elfcore_psinfo32_t; |
9775 | #endif | |
252b5132 RH |
9776 | #endif |
9777 | ||
252b5132 RH |
9778 | /* return a malloc'ed copy of a string at START which is at |
9779 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9780 | the copy will always have a terminating '\0'. */ |
252b5132 | 9781 | |
936e320b | 9782 | char * |
217aa764 | 9783 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9784 | { |
dc810e39 | 9785 | char *dups; |
a50b1753 | 9786 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9787 | size_t len; |
252b5132 RH |
9788 | |
9789 | if (end == NULL) | |
9790 | len = max; | |
9791 | else | |
9792 | len = end - start; | |
9793 | ||
a50b1753 | 9794 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9795 | if (dups == NULL) |
252b5132 RH |
9796 | return NULL; |
9797 | ||
dc810e39 AM |
9798 | memcpy (dups, start, len); |
9799 | dups[len] = '\0'; | |
252b5132 | 9800 | |
dc810e39 | 9801 | return dups; |
252b5132 RH |
9802 | } |
9803 | ||
bb0082d6 | 9804 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9805 | static bfd_boolean |
217aa764 | 9806 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9807 | { |
4a938328 MS |
9808 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9809 | { | |
9810 | elfcore_psinfo_t psinfo; | |
252b5132 | 9811 | |
7ee38065 | 9812 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9813 | |
335e41d4 | 9814 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9815 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9816 | #endif |
228e534f | 9817 | elf_tdata (abfd)->core->program |
936e320b AM |
9818 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9819 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9820 | |
228e534f | 9821 | elf_tdata (abfd)->core->command |
936e320b AM |
9822 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9823 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9824 | } |
7ee38065 | 9825 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9826 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9827 | { | |
9828 | /* 64-bit host, 32-bit corefile */ | |
9829 | elfcore_psinfo32_t psinfo; | |
9830 | ||
7ee38065 | 9831 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9832 | |
335e41d4 | 9833 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9834 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9835 | #endif |
228e534f | 9836 | elf_tdata (abfd)->core->program |
936e320b AM |
9837 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9838 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9839 | |
228e534f | 9840 | elf_tdata (abfd)->core->command |
936e320b AM |
9841 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9842 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9843 | } |
9844 | #endif | |
9845 | ||
9846 | else | |
9847 | { | |
9848 | /* Fail - we don't know how to handle any other | |
9849 | note size (ie. data object type). */ | |
b34976b6 | 9850 | return TRUE; |
4a938328 | 9851 | } |
252b5132 RH |
9852 | |
9853 | /* Note that for some reason, a spurious space is tacked | |
9854 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9855 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9856 | |
9857 | { | |
228e534f | 9858 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9859 | int n = strlen (command); |
9860 | ||
9861 | if (0 < n && command[n - 1] == ' ') | |
9862 | command[n - 1] = '\0'; | |
9863 | } | |
9864 | ||
b34976b6 | 9865 | return TRUE; |
252b5132 RH |
9866 | } |
9867 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9868 | ||
252b5132 | 9869 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9870 | static bfd_boolean |
217aa764 | 9871 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9872 | { |
f572a39d AM |
9873 | if (note->descsz == sizeof (pstatus_t) |
9874 | #if defined (HAVE_PXSTATUS_T) | |
9875 | || note->descsz == sizeof (pxstatus_t) | |
9876 | #endif | |
9877 | ) | |
4a938328 MS |
9878 | { |
9879 | pstatus_t pstat; | |
252b5132 | 9880 | |
4a938328 | 9881 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9882 | |
228e534f | 9883 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9884 | } |
7ee38065 | 9885 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9886 | else if (note->descsz == sizeof (pstatus32_t)) |
9887 | { | |
9888 | /* 64-bit host, 32-bit corefile */ | |
9889 | pstatus32_t pstat; | |
252b5132 | 9890 | |
4a938328 | 9891 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9892 | |
228e534f | 9893 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9894 | } |
9895 | #endif | |
252b5132 RH |
9896 | /* Could grab some more details from the "representative" |
9897 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9898 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9899 | |
b34976b6 | 9900 | return TRUE; |
252b5132 RH |
9901 | } |
9902 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9903 | ||
252b5132 | 9904 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9905 | static bfd_boolean |
217aa764 | 9906 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9907 | { |
9908 | lwpstatus_t lwpstat; | |
9909 | char buf[100]; | |
c044fabd | 9910 | char *name; |
d4c88bbb | 9911 | size_t len; |
c044fabd | 9912 | asection *sect; |
252b5132 | 9913 | |
f572a39d AM |
9914 | if (note->descsz != sizeof (lwpstat) |
9915 | #if defined (HAVE_LWPXSTATUS_T) | |
9916 | && note->descsz != sizeof (lwpxstatus_t) | |
9917 | #endif | |
9918 | ) | |
b34976b6 | 9919 | return TRUE; |
252b5132 RH |
9920 | |
9921 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9922 | ||
228e534f | 9923 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9924 | /* Do not overwrite the core signal if it has already been set by |
9925 | another thread. */ | |
228e534f AM |
9926 | if (elf_tdata (abfd)->core->signal == 0) |
9927 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9928 | |
c044fabd | 9929 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9930 | |
9931 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9932 | len = strlen (buf) + 1; |
217aa764 | 9933 | name = bfd_alloc (abfd, len); |
252b5132 | 9934 | if (name == NULL) |
b34976b6 | 9935 | return FALSE; |
d4c88bbb | 9936 | memcpy (name, buf, len); |
252b5132 | 9937 | |
117ed4f8 | 9938 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9939 | if (sect == NULL) |
b34976b6 | 9940 | return FALSE; |
252b5132 RH |
9941 | |
9942 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9943 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9944 | sect->filepos = note->descpos |
9945 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9946 | #endif | |
9947 | ||
9948 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9949 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9950 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9951 | #endif | |
9952 | ||
252b5132 RH |
9953 | sect->alignment_power = 2; |
9954 | ||
9955 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9956 | return FALSE; |
252b5132 RH |
9957 | |
9958 | /* Make a ".reg2/999" section */ | |
9959 | ||
9960 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9961 | len = strlen (buf) + 1; |
217aa764 | 9962 | name = bfd_alloc (abfd, len); |
252b5132 | 9963 | if (name == NULL) |
b34976b6 | 9964 | return FALSE; |
d4c88bbb | 9965 | memcpy (name, buf, len); |
252b5132 | 9966 | |
117ed4f8 | 9967 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9968 | if (sect == NULL) |
b34976b6 | 9969 | return FALSE; |
252b5132 RH |
9970 | |
9971 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9972 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9973 | sect->filepos = note->descpos |
9974 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9975 | #endif | |
9976 | ||
9977 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9978 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9979 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9980 | #endif | |
9981 | ||
252b5132 RH |
9982 | sect->alignment_power = 2; |
9983 | ||
936e320b | 9984 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9985 | } |
9986 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9987 | ||
b34976b6 | 9988 | static bfd_boolean |
217aa764 | 9989 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9990 | { |
9991 | char buf[30]; | |
c044fabd | 9992 | char *name; |
d4c88bbb | 9993 | size_t len; |
c044fabd | 9994 | asection *sect; |
4a6636fb PA |
9995 | int type; |
9996 | int is_active_thread; | |
9997 | bfd_vma base_addr; | |
16e9c715 | 9998 | |
4a6636fb | 9999 | if (note->descsz < 728) |
b34976b6 | 10000 | return TRUE; |
16e9c715 | 10001 | |
4a6636fb PA |
10002 | if (! CONST_STRNEQ (note->namedata, "win32")) |
10003 | return TRUE; | |
10004 | ||
10005 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 10006 | |
4a6636fb | 10007 | switch (type) |
16e9c715 | 10008 | { |
4a6636fb | 10009 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 10010 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 10011 | /* process_info.pid */ |
228e534f | 10012 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 10013 | /* process_info.signal */ |
228e534f | 10014 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 10015 | break; |
16e9c715 | 10016 | |
4a6636fb | 10017 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 10018 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
10019 | /* thread_info.tid */ |
10020 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 10021 | |
d4c88bbb | 10022 | len = strlen (buf) + 1; |
a50b1753 | 10023 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10024 | if (name == NULL) |
b34976b6 | 10025 | return FALSE; |
c044fabd | 10026 | |
d4c88bbb | 10027 | memcpy (name, buf, len); |
16e9c715 | 10028 | |
117ed4f8 | 10029 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10030 | if (sect == NULL) |
b34976b6 | 10031 | return FALSE; |
c044fabd | 10032 | |
4a6636fb PA |
10033 | /* sizeof (thread_info.thread_context) */ |
10034 | sect->size = 716; | |
10035 | /* offsetof (thread_info.thread_context) */ | |
10036 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10037 | sect->alignment_power = 2; |
10038 | ||
4a6636fb PA |
10039 | /* thread_info.is_active_thread */ |
10040 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10041 | ||
10042 | if (is_active_thread) | |
16e9c715 | 10043 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 10044 | return FALSE; |
16e9c715 NC |
10045 | break; |
10046 | ||
4a6636fb | 10047 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 10048 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
10049 | /* module_info.base_address */ |
10050 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 10051 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 10052 | |
d4c88bbb | 10053 | len = strlen (buf) + 1; |
a50b1753 | 10054 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10055 | if (name == NULL) |
b34976b6 | 10056 | return FALSE; |
c044fabd | 10057 | |
d4c88bbb | 10058 | memcpy (name, buf, len); |
252b5132 | 10059 | |
117ed4f8 | 10060 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10061 | |
16e9c715 | 10062 | if (sect == NULL) |
b34976b6 | 10063 | return FALSE; |
c044fabd | 10064 | |
eea6121a | 10065 | sect->size = note->descsz; |
16e9c715 | 10066 | sect->filepos = note->descpos; |
16e9c715 NC |
10067 | sect->alignment_power = 2; |
10068 | break; | |
10069 | ||
10070 | default: | |
b34976b6 | 10071 | return TRUE; |
16e9c715 NC |
10072 | } |
10073 | ||
b34976b6 | 10074 | return TRUE; |
16e9c715 | 10075 | } |
252b5132 | 10076 | |
b34976b6 | 10077 | static bfd_boolean |
217aa764 | 10078 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10079 | { |
9c5bfbb7 | 10080 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10081 | |
252b5132 RH |
10082 | switch (note->type) |
10083 | { | |
10084 | default: | |
b34976b6 | 10085 | return TRUE; |
252b5132 | 10086 | |
252b5132 | 10087 | case NT_PRSTATUS: |
bb0082d6 AM |
10088 | if (bed->elf_backend_grok_prstatus) |
10089 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 10090 | return TRUE; |
bb0082d6 | 10091 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10092 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10093 | #else |
b34976b6 | 10094 | return TRUE; |
252b5132 RH |
10095 | #endif |
10096 | ||
10097 | #if defined (HAVE_PSTATUS_T) | |
10098 | case NT_PSTATUS: | |
10099 | return elfcore_grok_pstatus (abfd, note); | |
10100 | #endif | |
10101 | ||
10102 | #if defined (HAVE_LWPSTATUS_T) | |
10103 | case NT_LWPSTATUS: | |
10104 | return elfcore_grok_lwpstatus (abfd, note); | |
10105 | #endif | |
10106 | ||
10107 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10108 | return elfcore_grok_prfpreg (abfd, note); | |
10109 | ||
c044fabd | 10110 | case NT_WIN32PSTATUS: |
16e9c715 | 10111 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10112 | |
c044fabd | 10113 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10114 | if (note->namesz == 6 |
10115 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10116 | return elfcore_grok_prxfpreg (abfd, note); |
10117 | else | |
b34976b6 | 10118 | return TRUE; |
ff08c6bb | 10119 | |
4339cae0 L |
10120 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10121 | if (note->namesz == 6 | |
10122 | && strcmp (note->namedata, "LINUX") == 0) | |
10123 | return elfcore_grok_xstatereg (abfd, note); | |
10124 | else | |
10125 | return TRUE; | |
10126 | ||
97753bd5 AM |
10127 | case NT_PPC_VMX: |
10128 | if (note->namesz == 6 | |
10129 | && strcmp (note->namedata, "LINUX") == 0) | |
10130 | return elfcore_grok_ppc_vmx (abfd, note); | |
10131 | else | |
10132 | return TRUE; | |
10133 | ||
89eeb0bc LM |
10134 | case NT_PPC_VSX: |
10135 | if (note->namesz == 6 | |
07d6d2b8 AM |
10136 | && strcmp (note->namedata, "LINUX") == 0) |
10137 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10138 | else |
07d6d2b8 | 10139 | return TRUE; |
89eeb0bc | 10140 | |
cb2366c1 EBM |
10141 | case NT_PPC_TAR: |
10142 | if (note->namesz == 6 | |
4b24dd1a AM |
10143 | && strcmp (note->namedata, "LINUX") == 0) |
10144 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10145 | else |
4b24dd1a | 10146 | return TRUE; |
cb2366c1 EBM |
10147 | |
10148 | case NT_PPC_PPR: | |
10149 | if (note->namesz == 6 | |
4b24dd1a AM |
10150 | && strcmp (note->namedata, "LINUX") == 0) |
10151 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10152 | else |
4b24dd1a | 10153 | return TRUE; |
cb2366c1 EBM |
10154 | |
10155 | case NT_PPC_DSCR: | |
10156 | if (note->namesz == 6 | |
4b24dd1a AM |
10157 | && strcmp (note->namedata, "LINUX") == 0) |
10158 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10159 | else |
4b24dd1a | 10160 | return TRUE; |
cb2366c1 EBM |
10161 | |
10162 | case NT_PPC_EBB: | |
10163 | if (note->namesz == 6 | |
4b24dd1a AM |
10164 | && strcmp (note->namedata, "LINUX") == 0) |
10165 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10166 | else |
4b24dd1a | 10167 | return TRUE; |
cb2366c1 EBM |
10168 | |
10169 | case NT_PPC_PMU: | |
10170 | if (note->namesz == 6 | |
4b24dd1a AM |
10171 | && strcmp (note->namedata, "LINUX") == 0) |
10172 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10173 | else |
4b24dd1a | 10174 | return TRUE; |
cb2366c1 EBM |
10175 | |
10176 | case NT_PPC_TM_CGPR: | |
10177 | if (note->namesz == 6 | |
4b24dd1a AM |
10178 | && strcmp (note->namedata, "LINUX") == 0) |
10179 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10180 | else |
4b24dd1a | 10181 | return TRUE; |
cb2366c1 EBM |
10182 | |
10183 | case NT_PPC_TM_CFPR: | |
10184 | if (note->namesz == 6 | |
4b24dd1a AM |
10185 | && strcmp (note->namedata, "LINUX") == 0) |
10186 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10187 | else |
4b24dd1a | 10188 | return TRUE; |
cb2366c1 EBM |
10189 | |
10190 | case NT_PPC_TM_CVMX: | |
10191 | if (note->namesz == 6 | |
4b24dd1a AM |
10192 | && strcmp (note->namedata, "LINUX") == 0) |
10193 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10194 | else |
4b24dd1a | 10195 | return TRUE; |
cb2366c1 EBM |
10196 | |
10197 | case NT_PPC_TM_CVSX: | |
10198 | if (note->namesz == 6 | |
4b24dd1a AM |
10199 | && strcmp (note->namedata, "LINUX") == 0) |
10200 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10201 | else |
4b24dd1a | 10202 | return TRUE; |
cb2366c1 EBM |
10203 | |
10204 | case NT_PPC_TM_SPR: | |
10205 | if (note->namesz == 6 | |
4b24dd1a AM |
10206 | && strcmp (note->namedata, "LINUX") == 0) |
10207 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10208 | else |
4b24dd1a | 10209 | return TRUE; |
cb2366c1 EBM |
10210 | |
10211 | case NT_PPC_TM_CTAR: | |
10212 | if (note->namesz == 6 | |
4b24dd1a AM |
10213 | && strcmp (note->namedata, "LINUX") == 0) |
10214 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10215 | else |
4b24dd1a | 10216 | return TRUE; |
cb2366c1 EBM |
10217 | |
10218 | case NT_PPC_TM_CPPR: | |
10219 | if (note->namesz == 6 | |
4b24dd1a AM |
10220 | && strcmp (note->namedata, "LINUX") == 0) |
10221 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10222 | else |
4b24dd1a | 10223 | return TRUE; |
cb2366c1 EBM |
10224 | |
10225 | case NT_PPC_TM_CDSCR: | |
10226 | if (note->namesz == 6 | |
4b24dd1a AM |
10227 | && strcmp (note->namedata, "LINUX") == 0) |
10228 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10229 | else |
4b24dd1a | 10230 | return TRUE; |
cb2366c1 | 10231 | |
0675e188 UW |
10232 | case NT_S390_HIGH_GPRS: |
10233 | if (note->namesz == 6 | |
07d6d2b8 AM |
10234 | && strcmp (note->namedata, "LINUX") == 0) |
10235 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10236 | else |
07d6d2b8 | 10237 | return TRUE; |
0675e188 | 10238 | |
d7eeb400 MS |
10239 | case NT_S390_TIMER: |
10240 | if (note->namesz == 6 | |
07d6d2b8 AM |
10241 | && strcmp (note->namedata, "LINUX") == 0) |
10242 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10243 | else |
07d6d2b8 | 10244 | return TRUE; |
d7eeb400 MS |
10245 | |
10246 | case NT_S390_TODCMP: | |
10247 | if (note->namesz == 6 | |
07d6d2b8 AM |
10248 | && strcmp (note->namedata, "LINUX") == 0) |
10249 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10250 | else |
07d6d2b8 | 10251 | return TRUE; |
d7eeb400 MS |
10252 | |
10253 | case NT_S390_TODPREG: | |
10254 | if (note->namesz == 6 | |
07d6d2b8 AM |
10255 | && strcmp (note->namedata, "LINUX") == 0) |
10256 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10257 | else |
07d6d2b8 | 10258 | return TRUE; |
d7eeb400 MS |
10259 | |
10260 | case NT_S390_CTRS: | |
10261 | if (note->namesz == 6 | |
07d6d2b8 AM |
10262 | && strcmp (note->namedata, "LINUX") == 0) |
10263 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10264 | else |
07d6d2b8 | 10265 | return TRUE; |
d7eeb400 MS |
10266 | |
10267 | case NT_S390_PREFIX: | |
10268 | if (note->namesz == 6 | |
07d6d2b8 AM |
10269 | && strcmp (note->namedata, "LINUX") == 0) |
10270 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10271 | else |
07d6d2b8 | 10272 | return TRUE; |
d7eeb400 | 10273 | |
355b81d9 UW |
10274 | case NT_S390_LAST_BREAK: |
10275 | if (note->namesz == 6 | |
07d6d2b8 AM |
10276 | && strcmp (note->namedata, "LINUX") == 0) |
10277 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10278 | else |
07d6d2b8 | 10279 | return TRUE; |
355b81d9 UW |
10280 | |
10281 | case NT_S390_SYSTEM_CALL: | |
10282 | if (note->namesz == 6 | |
07d6d2b8 AM |
10283 | && strcmp (note->namedata, "LINUX") == 0) |
10284 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10285 | else |
07d6d2b8 | 10286 | return TRUE; |
355b81d9 | 10287 | |
abb3f6cc NC |
10288 | case NT_S390_TDB: |
10289 | if (note->namesz == 6 | |
07d6d2b8 AM |
10290 | && strcmp (note->namedata, "LINUX") == 0) |
10291 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10292 | else |
07d6d2b8 | 10293 | return TRUE; |
abb3f6cc | 10294 | |
4ef9f41a AA |
10295 | case NT_S390_VXRS_LOW: |
10296 | if (note->namesz == 6 | |
10297 | && strcmp (note->namedata, "LINUX") == 0) | |
10298 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10299 | else | |
10300 | return TRUE; | |
10301 | ||
10302 | case NT_S390_VXRS_HIGH: | |
10303 | if (note->namesz == 6 | |
10304 | && strcmp (note->namedata, "LINUX") == 0) | |
10305 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10306 | else | |
10307 | return TRUE; | |
10308 | ||
88ab90e8 AA |
10309 | case NT_S390_GS_CB: |
10310 | if (note->namesz == 6 | |
10311 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10312 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10313 | else |
10314 | return TRUE; | |
10315 | ||
10316 | case NT_S390_GS_BC: | |
10317 | if (note->namesz == 6 | |
10318 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10319 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10320 | else |
10321 | return TRUE; | |
10322 | ||
faa9a424 UW |
10323 | case NT_ARM_VFP: |
10324 | if (note->namesz == 6 | |
10325 | && strcmp (note->namedata, "LINUX") == 0) | |
10326 | return elfcore_grok_arm_vfp (abfd, note); | |
10327 | else | |
10328 | return TRUE; | |
10329 | ||
652451f8 YZ |
10330 | case NT_ARM_TLS: |
10331 | if (note->namesz == 6 | |
10332 | && strcmp (note->namedata, "LINUX") == 0) | |
10333 | return elfcore_grok_aarch_tls (abfd, note); | |
10334 | else | |
10335 | return TRUE; | |
10336 | ||
10337 | case NT_ARM_HW_BREAK: | |
10338 | if (note->namesz == 6 | |
10339 | && strcmp (note->namedata, "LINUX") == 0) | |
10340 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10341 | else | |
10342 | return TRUE; | |
10343 | ||
10344 | case NT_ARM_HW_WATCH: | |
10345 | if (note->namesz == 6 | |
10346 | && strcmp (note->namedata, "LINUX") == 0) | |
10347 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10348 | else | |
10349 | return TRUE; | |
10350 | ||
ad1cc4e4 AH |
10351 | case NT_ARM_SVE: |
10352 | if (note->namesz == 6 | |
10353 | && strcmp (note->namedata, "LINUX") == 0) | |
10354 | return elfcore_grok_aarch_sve (abfd, note); | |
10355 | else | |
10356 | return TRUE; | |
10357 | ||
e6c3b5bf AH |
10358 | case NT_ARM_PAC_MASK: |
10359 | if (note->namesz == 6 | |
10360 | && strcmp (note->namedata, "LINUX") == 0) | |
10361 | return elfcore_grok_aarch_pauth (abfd, note); | |
10362 | else | |
10363 | return TRUE; | |
10364 | ||
252b5132 RH |
10365 | case NT_PRPSINFO: |
10366 | case NT_PSINFO: | |
bb0082d6 AM |
10367 | if (bed->elf_backend_grok_psinfo) |
10368 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10369 | return TRUE; |
bb0082d6 | 10370 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10371 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10372 | #else |
b34976b6 | 10373 | return TRUE; |
252b5132 | 10374 | #endif |
3333a7c3 RM |
10375 | |
10376 | case NT_AUXV: | |
58e07198 | 10377 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10378 | |
451b7c33 TT |
10379 | case NT_FILE: |
10380 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10381 | note); | |
10382 | ||
9015683b TT |
10383 | case NT_SIGINFO: |
10384 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10385 | note); | |
5b2c414d | 10386 | |
252b5132 RH |
10387 | } |
10388 | } | |
10389 | ||
718175fa JK |
10390 | static bfd_boolean |
10391 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10392 | { | |
c74f7d1c | 10393 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10394 | |
10395 | if (note->descsz == 0) | |
10396 | return FALSE; | |
10397 | ||
c74f7d1c JT |
10398 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10399 | if (build_id == NULL) | |
718175fa JK |
10400 | return FALSE; |
10401 | ||
c74f7d1c JT |
10402 | build_id->size = note->descsz; |
10403 | memcpy (build_id->data, note->descdata, note->descsz); | |
10404 | abfd->build_id = build_id; | |
718175fa JK |
10405 | |
10406 | return TRUE; | |
10407 | } | |
10408 | ||
10409 | static bfd_boolean | |
10410 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10411 | { | |
10412 | switch (note->type) | |
10413 | { | |
10414 | default: | |
10415 | return TRUE; | |
10416 | ||
46bed679 L |
10417 | case NT_GNU_PROPERTY_TYPE_0: |
10418 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10419 | ||
718175fa JK |
10420 | case NT_GNU_BUILD_ID: |
10421 | return elfobj_grok_gnu_build_id (abfd, note); | |
10422 | } | |
10423 | } | |
10424 | ||
e21e5835 NC |
10425 | static bfd_boolean |
10426 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10427 | { | |
10428 | struct sdt_note *cur = | |
7a6e0d89 AM |
10429 | (struct sdt_note *) bfd_alloc (abfd, |
10430 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10431 | |
10432 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10433 | cur->size = (bfd_size_type) note->descsz; | |
10434 | memcpy (cur->data, note->descdata, note->descsz); | |
10435 | ||
10436 | elf_tdata (abfd)->sdt_note_head = cur; | |
10437 | ||
10438 | return TRUE; | |
10439 | } | |
10440 | ||
10441 | static bfd_boolean | |
10442 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10443 | { | |
10444 | switch (note->type) | |
10445 | { | |
10446 | case NT_STAPSDT: | |
10447 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10448 | ||
10449 | default: | |
10450 | return TRUE; | |
10451 | } | |
10452 | } | |
10453 | ||
aa1ed4a9 JB |
10454 | static bfd_boolean |
10455 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10456 | { | |
10457 | size_t offset; | |
10458 | ||
b5430a3c | 10459 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10460 | { |
b5430a3c | 10461 | case ELFCLASS32: |
0064d223 JB |
10462 | if (note->descsz < 108) |
10463 | return FALSE; | |
aa1ed4a9 JB |
10464 | break; |
10465 | ||
b5430a3c | 10466 | case ELFCLASS64: |
0064d223 JB |
10467 | if (note->descsz < 120) |
10468 | return FALSE; | |
aa1ed4a9 JB |
10469 | break; |
10470 | ||
10471 | default: | |
10472 | return FALSE; | |
10473 | } | |
10474 | ||
0064d223 JB |
10475 | /* Check for version 1 in pr_version. */ |
10476 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10477 | return FALSE; | |
80a04378 | 10478 | |
0064d223 JB |
10479 | offset = 4; |
10480 | ||
10481 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10482 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10483 | offset += 4; |
10484 | else | |
10485 | { | |
10486 | offset += 4; /* Padding before pr_psinfosz. */ | |
10487 | offset += 8; | |
10488 | } | |
10489 | ||
aa1ed4a9 JB |
10490 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10491 | elf_tdata (abfd)->core->program | |
10492 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10493 | offset += 17; | |
10494 | ||
10495 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10496 | elf_tdata (abfd)->core->command | |
10497 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10498 | offset += 81; |
10499 | ||
10500 | /* Padding before pr_pid. */ | |
10501 | offset += 2; | |
10502 | ||
10503 | /* The pr_pid field was added in version "1a". */ | |
10504 | if (note->descsz < offset + 4) | |
10505 | return TRUE; | |
10506 | ||
10507 | elf_tdata (abfd)->core->pid | |
10508 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10509 | |
10510 | return TRUE; | |
10511 | } | |
10512 | ||
10513 | static bfd_boolean | |
10514 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10515 | { | |
10516 | size_t offset; | |
10517 | size_t size; | |
24d3e51b | 10518 | size_t min_size; |
aa1ed4a9 | 10519 | |
24d3e51b NC |
10520 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10521 | Also compute minimum size of this note. */ | |
b5430a3c | 10522 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10523 | { |
b5430a3c | 10524 | case ELFCLASS32: |
24d3e51b NC |
10525 | offset = 4 + 4; |
10526 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10527 | break; |
10528 | ||
b5430a3c | 10529 | case ELFCLASS64: |
24d3e51b NC |
10530 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10531 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10532 | break; |
10533 | ||
10534 | default: | |
10535 | return FALSE; | |
10536 | } | |
10537 | ||
24d3e51b NC |
10538 | if (note->descsz < min_size) |
10539 | return FALSE; | |
10540 | ||
10541 | /* Check for version 1 in pr_version. */ | |
10542 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10543 | return FALSE; | |
aa1ed4a9 | 10544 | |
24d3e51b NC |
10545 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10546 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10547 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10548 | { |
10549 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10550 | offset += 4 * 2; | |
10551 | } | |
b5430a3c | 10552 | else |
24d3e51b NC |
10553 | { |
10554 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10555 | offset += 8 * 2; | |
10556 | } | |
aa1ed4a9 | 10557 | |
24d3e51b | 10558 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10559 | offset += 4; |
10560 | ||
24d3e51b | 10561 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10562 | if (elf_tdata (abfd)->core->signal == 0) |
10563 | elf_tdata (abfd)->core->signal | |
10564 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10565 | offset += 4; | |
10566 | ||
24d3e51b | 10567 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10568 | elf_tdata (abfd)->core->lwpid |
10569 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10570 | offset += 4; | |
10571 | ||
24d3e51b | 10572 | /* Padding before pr_reg. */ |
b5430a3c | 10573 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10574 | offset += 4; |
10575 | ||
24d3e51b NC |
10576 | /* Make sure that there is enough data remaining in the note. */ |
10577 | if ((note->descsz - offset) < size) | |
10578 | return FALSE; | |
10579 | ||
aa1ed4a9 JB |
10580 | /* Make a ".reg/999" section and a ".reg" section. */ |
10581 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10582 | size, note->descpos + offset); | |
10583 | } | |
10584 | ||
10585 | static bfd_boolean | |
10586 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10587 | { | |
544c67cd JB |
10588 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10589 | ||
aa1ed4a9 JB |
10590 | switch (note->type) |
10591 | { | |
10592 | case NT_PRSTATUS: | |
544c67cd JB |
10593 | if (bed->elf_backend_grok_freebsd_prstatus) |
10594 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10595 | return TRUE; | |
aa1ed4a9 JB |
10596 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10597 | ||
10598 | case NT_FPREGSET: | |
10599 | return elfcore_grok_prfpreg (abfd, note); | |
10600 | ||
10601 | case NT_PRPSINFO: | |
10602 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10603 | ||
10604 | case NT_FREEBSD_THRMISC: | |
10605 | if (note->namesz == 8) | |
10606 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10607 | else | |
10608 | return TRUE; | |
10609 | ||
ddb2bbcf JB |
10610 | case NT_FREEBSD_PROCSTAT_PROC: |
10611 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10612 | note); | |
10613 | ||
10614 | case NT_FREEBSD_PROCSTAT_FILES: | |
10615 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10616 | note); | |
10617 | ||
10618 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10619 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10620 | note); | |
10621 | ||
3350c5f5 | 10622 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10623 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10624 | |
aa1ed4a9 JB |
10625 | case NT_X86_XSTATE: |
10626 | if (note->namesz == 8) | |
10627 | return elfcore_grok_xstatereg (abfd, note); | |
10628 | else | |
10629 | return TRUE; | |
10630 | ||
e6f3b9c3 JB |
10631 | case NT_FREEBSD_PTLWPINFO: |
10632 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10633 | note); | |
10634 | ||
6d5be5d6 JB |
10635 | case NT_ARM_VFP: |
10636 | return elfcore_grok_arm_vfp (abfd, note); | |
10637 | ||
aa1ed4a9 JB |
10638 | default: |
10639 | return TRUE; | |
10640 | } | |
10641 | } | |
10642 | ||
b34976b6 | 10643 | static bfd_boolean |
217aa764 | 10644 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10645 | { |
10646 | char *cp; | |
10647 | ||
10648 | cp = strchr (note->namedata, '@'); | |
10649 | if (cp != NULL) | |
10650 | { | |
d2b64500 | 10651 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10652 | return TRUE; |
50b2bdb7 | 10653 | } |
b34976b6 | 10654 | return FALSE; |
50b2bdb7 AM |
10655 | } |
10656 | ||
b34976b6 | 10657 | static bfd_boolean |
217aa764 | 10658 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10659 | { |
80a04378 NC |
10660 | if (note->descsz <= 0x7c + 31) |
10661 | return FALSE; | |
10662 | ||
50b2bdb7 | 10663 | /* Signal number at offset 0x08. */ |
228e534f | 10664 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10665 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10666 | ||
10667 | /* Process ID at offset 0x50. */ | |
228e534f | 10668 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10669 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10670 | ||
10671 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10672 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10673 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10674 | ||
7720ba9f MK |
10675 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10676 | note); | |
50b2bdb7 AM |
10677 | } |
10678 | ||
b34976b6 | 10679 | static bfd_boolean |
217aa764 | 10680 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10681 | { |
10682 | int lwp; | |
10683 | ||
10684 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10685 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10686 | |
58e07198 | 10687 | switch (note->type) |
50b2bdb7 | 10688 | { |
58e07198 | 10689 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10690 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10691 | find this note before any of the others, which is fine, |
10692 | since the kernel writes this note out first when it | |
10693 | creates a core file. */ | |
50b2bdb7 | 10694 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10695 | #ifdef NT_NETBSDCORE_AUXV |
10696 | case NT_NETBSDCORE_AUXV: | |
10697 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10698 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
10699 | #endif | |
10700 | default: | |
10701 | break; | |
50b2bdb7 AM |
10702 | } |
10703 | ||
58e07198 | 10704 | /* As of March 2017 there are no other machine-independent notes |
b4db1224 JT |
10705 | defined for NetBSD core files. If the note type is less |
10706 | than the start of the machine-dependent note types, we don't | |
10707 | understand it. */ | |
47d9a591 | 10708 | |
b4db1224 | 10709 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10710 | return TRUE; |
50b2bdb7 AM |
10711 | |
10712 | ||
10713 | switch (bfd_get_arch (abfd)) | |
10714 | { | |
08a40648 AM |
10715 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10716 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10717 | |
10718 | case bfd_arch_alpha: | |
10719 | case bfd_arch_sparc: | |
10720 | switch (note->type) | |
08a40648 AM |
10721 | { |
10722 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10723 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10724 | |
08a40648 AM |
10725 | case NT_NETBSDCORE_FIRSTMACH+2: |
10726 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10727 | |
08a40648 AM |
10728 | default: |
10729 | return TRUE; | |
10730 | } | |
50b2bdb7 | 10731 | |
58e07198 CZ |
10732 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
10733 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
10734 | structure which lacks GBR. */ | |
10735 | ||
10736 | case bfd_arch_sh: | |
10737 | switch (note->type) | |
10738 | { | |
10739 | case NT_NETBSDCORE_FIRSTMACH+3: | |
10740 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10741 | ||
10742 | case NT_NETBSDCORE_FIRSTMACH+5: | |
10743 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10744 | ||
10745 | default: | |
10746 | return TRUE; | |
10747 | } | |
10748 | ||
08a40648 AM |
10749 | /* On all other arch's, PT_GETREGS == mach+1 and |
10750 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10751 | |
10752 | default: | |
10753 | switch (note->type) | |
08a40648 AM |
10754 | { |
10755 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10756 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10757 | |
08a40648 AM |
10758 | case NT_NETBSDCORE_FIRSTMACH+3: |
10759 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10760 | |
08a40648 AM |
10761 | default: |
10762 | return TRUE; | |
10763 | } | |
50b2bdb7 AM |
10764 | } |
10765 | /* NOTREACHED */ | |
10766 | } | |
10767 | ||
67cc5033 MK |
10768 | static bfd_boolean |
10769 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10770 | { | |
80a04378 NC |
10771 | if (note->descsz <= 0x48 + 31) |
10772 | return FALSE; | |
10773 | ||
67cc5033 | 10774 | /* Signal number at offset 0x08. */ |
228e534f | 10775 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10776 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10777 | ||
10778 | /* Process ID at offset 0x20. */ | |
228e534f | 10779 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10780 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10781 | ||
10782 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10783 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10784 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10785 | ||
10786 | return TRUE; | |
10787 | } | |
10788 | ||
10789 | static bfd_boolean | |
10790 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10791 | { | |
10792 | if (note->type == NT_OPENBSD_PROCINFO) | |
10793 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10794 | ||
10795 | if (note->type == NT_OPENBSD_REGS) | |
10796 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10797 | ||
10798 | if (note->type == NT_OPENBSD_FPREGS) | |
10799 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10800 | ||
10801 | if (note->type == NT_OPENBSD_XFPREGS) | |
10802 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10803 | ||
10804 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 10805 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
10806 | |
10807 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10808 | { | |
10809 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10810 | SEC_HAS_CONTENTS); | |
10811 | ||
10812 | if (sect == NULL) | |
10813 | return FALSE; | |
10814 | sect->size = note->descsz; | |
10815 | sect->filepos = note->descpos; | |
10816 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10817 | ||
10818 | return TRUE; | |
10819 | } | |
10820 | ||
10821 | return TRUE; | |
10822 | } | |
10823 | ||
07c6e936 | 10824 | static bfd_boolean |
d3fd4074 | 10825 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10826 | { |
10827 | void *ddata = note->descdata; | |
10828 | char buf[100]; | |
10829 | char *name; | |
10830 | asection *sect; | |
f8843e87 AM |
10831 | short sig; |
10832 | unsigned flags; | |
07c6e936 | 10833 | |
80a04378 NC |
10834 | if (note->descsz < 16) |
10835 | return FALSE; | |
10836 | ||
07c6e936 | 10837 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10838 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10839 | |
f8843e87 AM |
10840 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10841 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10842 | ||
10843 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10844 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10845 | |
10846 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10847 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10848 | { | |
228e534f AM |
10849 | elf_tdata (abfd)->core->signal = sig; |
10850 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10851 | } |
07c6e936 | 10852 | |
f8843e87 AM |
10853 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10854 | do not come from signals so we make sure we set the current | |
10855 | thread just in case. */ | |
10856 | if (flags & 0x00000080) | |
228e534f | 10857 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10858 | |
10859 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10860 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10861 | |
a50b1753 | 10862 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10863 | if (name == NULL) |
10864 | return FALSE; | |
10865 | strcpy (name, buf); | |
10866 | ||
117ed4f8 | 10867 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10868 | if (sect == NULL) |
10869 | return FALSE; | |
10870 | ||
07d6d2b8 AM |
10871 | sect->size = note->descsz; |
10872 | sect->filepos = note->descpos; | |
07c6e936 NC |
10873 | sect->alignment_power = 2; |
10874 | ||
10875 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10876 | } | |
10877 | ||
10878 | static bfd_boolean | |
d69f560c KW |
10879 | elfcore_grok_nto_regs (bfd *abfd, |
10880 | Elf_Internal_Note *note, | |
d3fd4074 | 10881 | long tid, |
d69f560c | 10882 | char *base) |
07c6e936 NC |
10883 | { |
10884 | char buf[100]; | |
10885 | char *name; | |
10886 | asection *sect; | |
10887 | ||
d69f560c | 10888 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10889 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10890 | |
a50b1753 | 10891 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10892 | if (name == NULL) |
10893 | return FALSE; | |
10894 | strcpy (name, buf); | |
10895 | ||
117ed4f8 | 10896 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10897 | if (sect == NULL) |
10898 | return FALSE; | |
10899 | ||
07d6d2b8 AM |
10900 | sect->size = note->descsz; |
10901 | sect->filepos = note->descpos; | |
07c6e936 NC |
10902 | sect->alignment_power = 2; |
10903 | ||
f8843e87 | 10904 | /* This is the current thread. */ |
228e534f | 10905 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10906 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10907 | |
10908 | return TRUE; | |
07c6e936 NC |
10909 | } |
10910 | ||
10911 | #define BFD_QNT_CORE_INFO 7 | |
10912 | #define BFD_QNT_CORE_STATUS 8 | |
10913 | #define BFD_QNT_CORE_GREG 9 | |
10914 | #define BFD_QNT_CORE_FPREG 10 | |
10915 | ||
10916 | static bfd_boolean | |
217aa764 | 10917 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10918 | { |
10919 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10920 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10921 | function. */ |
d3fd4074 | 10922 | static long tid = 1; |
07c6e936 NC |
10923 | |
10924 | switch (note->type) | |
10925 | { | |
d69f560c KW |
10926 | case BFD_QNT_CORE_INFO: |
10927 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10928 | case BFD_QNT_CORE_STATUS: | |
10929 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10930 | case BFD_QNT_CORE_GREG: | |
10931 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10932 | case BFD_QNT_CORE_FPREG: | |
10933 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10934 | default: | |
10935 | return TRUE; | |
07c6e936 NC |
10936 | } |
10937 | } | |
10938 | ||
b15fa79e AM |
10939 | static bfd_boolean |
10940 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10941 | { | |
10942 | char *name; | |
10943 | asection *sect; | |
10944 | size_t len; | |
10945 | ||
10946 | /* Use note name as section name. */ | |
10947 | len = note->namesz; | |
a50b1753 | 10948 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10949 | if (name == NULL) |
10950 | return FALSE; | |
10951 | memcpy (name, note->namedata, len); | |
10952 | name[len - 1] = '\0'; | |
10953 | ||
10954 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10955 | if (sect == NULL) | |
10956 | return FALSE; | |
10957 | ||
07d6d2b8 AM |
10958 | sect->size = note->descsz; |
10959 | sect->filepos = note->descpos; | |
b15fa79e AM |
10960 | sect->alignment_power = 1; |
10961 | ||
10962 | return TRUE; | |
10963 | } | |
10964 | ||
7c76fa91 MS |
10965 | /* Function: elfcore_write_note |
10966 | ||
47d9a591 | 10967 | Inputs: |
a39f3346 | 10968 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10969 | name of note |
10970 | type of note | |
10971 | data for note | |
10972 | size of data for note | |
10973 | ||
a39f3346 AM |
10974 | Writes note to end of buffer. ELF64 notes are written exactly as |
10975 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10976 | that they ought to have 8-byte namesz and descsz field, and have | |
10977 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10978 | ||
7c76fa91 | 10979 | Return: |
a39f3346 | 10980 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10981 | |
10982 | char * | |
a39f3346 | 10983 | elfcore_write_note (bfd *abfd, |
217aa764 | 10984 | char *buf, |
a39f3346 | 10985 | int *bufsiz, |
217aa764 | 10986 | const char *name, |
a39f3346 | 10987 | int type, |
217aa764 | 10988 | const void *input, |
a39f3346 | 10989 | int size) |
7c76fa91 MS |
10990 | { |
10991 | Elf_External_Note *xnp; | |
d4c88bbb | 10992 | size_t namesz; |
d4c88bbb | 10993 | size_t newspace; |
a39f3346 | 10994 | char *dest; |
7c76fa91 | 10995 | |
d4c88bbb | 10996 | namesz = 0; |
d4c88bbb | 10997 | if (name != NULL) |
a39f3346 | 10998 | namesz = strlen (name) + 1; |
d4c88bbb | 10999 | |
a39f3346 | 11000 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 11001 | |
a50b1753 | 11002 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
11003 | if (buf == NULL) |
11004 | return buf; | |
a39f3346 | 11005 | dest = buf + *bufsiz; |
7c76fa91 MS |
11006 | *bufsiz += newspace; |
11007 | xnp = (Elf_External_Note *) dest; | |
11008 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
11009 | H_PUT_32 (abfd, size, xnp->descsz); | |
11010 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
11011 | dest = xnp->name; |
11012 | if (name != NULL) | |
11013 | { | |
11014 | memcpy (dest, name, namesz); | |
11015 | dest += namesz; | |
a39f3346 | 11016 | while (namesz & 3) |
d4c88bbb AM |
11017 | { |
11018 | *dest++ = '\0'; | |
a39f3346 | 11019 | ++namesz; |
d4c88bbb AM |
11020 | } |
11021 | } | |
11022 | memcpy (dest, input, size); | |
a39f3346 AM |
11023 | dest += size; |
11024 | while (size & 3) | |
11025 | { | |
11026 | *dest++ = '\0'; | |
11027 | ++size; | |
11028 | } | |
11029 | return buf; | |
7c76fa91 MS |
11030 | } |
11031 | ||
602f1657 AM |
11032 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11033 | possible string truncation. The "truncation" is not a bug. We | |
11034 | have an external representation of structs with fields that are not | |
11035 | necessarily NULL terminated and corresponding internal | |
11036 | representation fields that are one larger so that they can always | |
11037 | be NULL terminated. | |
11038 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11039 | diagnostics inside functions, giving a hard error if you try to use | |
11040 | the finer control available with later versions. | |
11041 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11042 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11043 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11044 | (*) Depending on your system header files! */ | |
d99b4b92 | 11045 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11046 | # pragma GCC diagnostic push |
11047 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11048 | #endif |
7c76fa91 | 11049 | char * |
217aa764 AM |
11050 | elfcore_write_prpsinfo (bfd *abfd, |
11051 | char *buf, | |
11052 | int *bufsiz, | |
11053 | const char *fname, | |
11054 | const char *psargs) | |
7c76fa91 | 11055 | { |
183e98be AM |
11056 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11057 | ||
11058 | if (bed->elf_backend_write_core_note != NULL) | |
11059 | { | |
11060 | char *ret; | |
11061 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11062 | NT_PRPSINFO, fname, psargs); | |
11063 | if (ret != NULL) | |
11064 | return ret; | |
11065 | } | |
7c76fa91 | 11066 | |
1f20dca5 | 11067 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11068 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11069 | if (bed->s->elfclass == ELFCLASS32) |
11070 | { | |
602f1657 | 11071 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11072 | psinfo32_t data; |
11073 | int note_type = NT_PSINFO; | |
602f1657 | 11074 | # else |
183e98be AM |
11075 | prpsinfo32_t data; |
11076 | int note_type = NT_PRPSINFO; | |
602f1657 | 11077 | # endif |
183e98be AM |
11078 | |
11079 | memset (&data, 0, sizeof (data)); | |
11080 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11081 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11082 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11083 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11084 | } |
11085 | else | |
602f1657 | 11086 | # endif |
183e98be | 11087 | { |
602f1657 | 11088 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11089 | psinfo_t data; |
11090 | int note_type = NT_PSINFO; | |
602f1657 | 11091 | # else |
183e98be AM |
11092 | prpsinfo_t data; |
11093 | int note_type = NT_PRPSINFO; | |
602f1657 | 11094 | # endif |
7c76fa91 | 11095 | |
183e98be AM |
11096 | memset (&data, 0, sizeof (data)); |
11097 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11098 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11099 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11100 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11101 | } |
7c76fa91 MS |
11102 | #endif /* PSINFO_T or PRPSINFO_T */ |
11103 | ||
1f20dca5 UW |
11104 | free (buf); |
11105 | return NULL; | |
11106 | } | |
d99b4b92 | 11107 | #if GCC_VERSION >= 8000 |
602f1657 | 11108 | # pragma GCC diagnostic pop |
d99b4b92 | 11109 | #endif |
1f20dca5 | 11110 | |
70a38d42 SDJ |
11111 | char * |
11112 | elfcore_write_linux_prpsinfo32 | |
11113 | (bfd *abfd, char *buf, int *bufsiz, | |
11114 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11115 | { | |
a2f63b2e MR |
11116 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11117 | { | |
11118 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11119 | ||
11120 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11121 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11122 | &data, sizeof (data)); | |
11123 | } | |
11124 | else | |
11125 | { | |
11126 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11127 | |
a2f63b2e MR |
11128 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11129 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11130 | &data, sizeof (data)); | |
11131 | } | |
70a38d42 SDJ |
11132 | } |
11133 | ||
11134 | char * | |
11135 | elfcore_write_linux_prpsinfo64 | |
11136 | (bfd *abfd, char *buf, int *bufsiz, | |
11137 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11138 | { | |
3c9a7b0d MR |
11139 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11140 | { | |
11141 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11142 | ||
11143 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11144 | return elfcore_write_note (abfd, buf, bufsiz, | |
11145 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11146 | } | |
11147 | else | |
11148 | { | |
11149 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11150 | |
3c9a7b0d MR |
11151 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11152 | return elfcore_write_note (abfd, buf, bufsiz, | |
11153 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11154 | } | |
70a38d42 SDJ |
11155 | } |
11156 | ||
7c76fa91 | 11157 | char * |
217aa764 AM |
11158 | elfcore_write_prstatus (bfd *abfd, |
11159 | char *buf, | |
11160 | int *bufsiz, | |
11161 | long pid, | |
11162 | int cursig, | |
11163 | const void *gregs) | |
7c76fa91 | 11164 | { |
183e98be | 11165 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11166 | |
183e98be AM |
11167 | if (bed->elf_backend_write_core_note != NULL) |
11168 | { | |
11169 | char *ret; | |
11170 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11171 | NT_PRSTATUS, | |
11172 | pid, cursig, gregs); | |
11173 | if (ret != NULL) | |
11174 | return ret; | |
11175 | } | |
11176 | ||
1f20dca5 | 11177 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11178 | #if defined (HAVE_PRSTATUS32_T) |
11179 | if (bed->s->elfclass == ELFCLASS32) | |
11180 | { | |
11181 | prstatus32_t prstat; | |
11182 | ||
11183 | memset (&prstat, 0, sizeof (prstat)); | |
11184 | prstat.pr_pid = pid; | |
11185 | prstat.pr_cursig = cursig; | |
11186 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11187 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11188 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11189 | } | |
11190 | else | |
11191 | #endif | |
11192 | { | |
11193 | prstatus_t prstat; | |
11194 | ||
11195 | memset (&prstat, 0, sizeof (prstat)); | |
11196 | prstat.pr_pid = pid; | |
11197 | prstat.pr_cursig = cursig; | |
11198 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11199 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11200 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11201 | } | |
7c76fa91 MS |
11202 | #endif /* HAVE_PRSTATUS_T */ |
11203 | ||
1f20dca5 UW |
11204 | free (buf); |
11205 | return NULL; | |
11206 | } | |
11207 | ||
51316059 MS |
11208 | #if defined (HAVE_LWPSTATUS_T) |
11209 | char * | |
217aa764 AM |
11210 | elfcore_write_lwpstatus (bfd *abfd, |
11211 | char *buf, | |
11212 | int *bufsiz, | |
11213 | long pid, | |
11214 | int cursig, | |
11215 | const void *gregs) | |
51316059 MS |
11216 | { |
11217 | lwpstatus_t lwpstat; | |
183e98be | 11218 | const char *note_name = "CORE"; |
51316059 MS |
11219 | |
11220 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11221 | lwpstat.pr_lwpid = pid >> 16; | |
11222 | lwpstat.pr_cursig = cursig; | |
11223 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11224 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11225 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11226 | #if !defined(gregs) | |
11227 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11228 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11229 | #else | |
11230 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11231 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11232 | #endif | |
11233 | #endif | |
47d9a591 | 11234 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11235 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11236 | } | |
11237 | #endif /* HAVE_LWPSTATUS_T */ | |
11238 | ||
7c76fa91 MS |
11239 | #if defined (HAVE_PSTATUS_T) |
11240 | char * | |
217aa764 AM |
11241 | elfcore_write_pstatus (bfd *abfd, |
11242 | char *buf, | |
11243 | int *bufsiz, | |
11244 | long pid, | |
6c10990d NC |
11245 | int cursig ATTRIBUTE_UNUSED, |
11246 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11247 | { |
183e98be AM |
11248 | const char *note_name = "CORE"; |
11249 | #if defined (HAVE_PSTATUS32_T) | |
11250 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11251 | |
183e98be AM |
11252 | if (bed->s->elfclass == ELFCLASS32) |
11253 | { | |
11254 | pstatus32_t pstat; | |
11255 | ||
11256 | memset (&pstat, 0, sizeof (pstat)); | |
11257 | pstat.pr_pid = pid & 0xffff; | |
11258 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11259 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11260 | return buf; | |
11261 | } | |
11262 | else | |
11263 | #endif | |
11264 | { | |
11265 | pstatus_t pstat; | |
11266 | ||
11267 | memset (&pstat, 0, sizeof (pstat)); | |
11268 | pstat.pr_pid = pid & 0xffff; | |
11269 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11270 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11271 | return buf; | |
11272 | } | |
7c76fa91 MS |
11273 | } |
11274 | #endif /* HAVE_PSTATUS_T */ | |
11275 | ||
11276 | char * | |
217aa764 AM |
11277 | elfcore_write_prfpreg (bfd *abfd, |
11278 | char *buf, | |
11279 | int *bufsiz, | |
11280 | const void *fpregs, | |
11281 | int size) | |
7c76fa91 | 11282 | { |
183e98be | 11283 | const char *note_name = "CORE"; |
47d9a591 | 11284 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11285 | note_name, NT_FPREGSET, fpregs, size); |
11286 | } | |
11287 | ||
11288 | char * | |
217aa764 AM |
11289 | elfcore_write_prxfpreg (bfd *abfd, |
11290 | char *buf, | |
11291 | int *bufsiz, | |
11292 | const void *xfpregs, | |
11293 | int size) | |
7c76fa91 MS |
11294 | { |
11295 | char *note_name = "LINUX"; | |
47d9a591 | 11296 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11297 | note_name, NT_PRXFPREG, xfpregs, size); |
11298 | } | |
11299 | ||
4339cae0 L |
11300 | char * |
11301 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11302 | const void *xfpregs, int size) | |
11303 | { | |
97de3545 JB |
11304 | char *note_name; |
11305 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11306 | note_name = "FreeBSD"; | |
11307 | else | |
11308 | note_name = "LINUX"; | |
4339cae0 L |
11309 | return elfcore_write_note (abfd, buf, bufsiz, |
11310 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11311 | } | |
11312 | ||
97753bd5 AM |
11313 | char * |
11314 | elfcore_write_ppc_vmx (bfd *abfd, | |
11315 | char *buf, | |
11316 | int *bufsiz, | |
11317 | const void *ppc_vmx, | |
11318 | int size) | |
11319 | { | |
11320 | char *note_name = "LINUX"; | |
11321 | return elfcore_write_note (abfd, buf, bufsiz, | |
11322 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11323 | } | |
11324 | ||
89eeb0bc LM |
11325 | char * |
11326 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11327 | char *buf, |
11328 | int *bufsiz, | |
11329 | const void *ppc_vsx, | |
11330 | int size) | |
89eeb0bc LM |
11331 | { |
11332 | char *note_name = "LINUX"; | |
11333 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11334 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11335 | } |
11336 | ||
cb2366c1 EBM |
11337 | char * |
11338 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11339 | char *buf, |
11340 | int *bufsiz, | |
11341 | const void *ppc_tar, | |
11342 | int size) | |
cb2366c1 EBM |
11343 | { |
11344 | char *note_name = "LINUX"; | |
11345 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11346 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11347 | } |
11348 | ||
11349 | char * | |
11350 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11351 | char *buf, |
11352 | int *bufsiz, | |
11353 | const void *ppc_ppr, | |
11354 | int size) | |
cb2366c1 EBM |
11355 | { |
11356 | char *note_name = "LINUX"; | |
11357 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11358 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11359 | } |
11360 | ||
11361 | char * | |
11362 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11363 | char *buf, |
11364 | int *bufsiz, | |
11365 | const void *ppc_dscr, | |
11366 | int size) | |
cb2366c1 EBM |
11367 | { |
11368 | char *note_name = "LINUX"; | |
11369 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11370 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11371 | } |
11372 | ||
11373 | char * | |
11374 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11375 | char *buf, |
11376 | int *bufsiz, | |
11377 | const void *ppc_ebb, | |
11378 | int size) | |
cb2366c1 EBM |
11379 | { |
11380 | char *note_name = "LINUX"; | |
11381 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11382 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11383 | } |
11384 | ||
11385 | char * | |
11386 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11387 | char *buf, |
11388 | int *bufsiz, | |
11389 | const void *ppc_pmu, | |
11390 | int size) | |
cb2366c1 EBM |
11391 | { |
11392 | char *note_name = "LINUX"; | |
11393 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11394 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11395 | } |
11396 | ||
11397 | char * | |
11398 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11399 | char *buf, |
11400 | int *bufsiz, | |
11401 | const void *ppc_tm_cgpr, | |
11402 | int size) | |
cb2366c1 EBM |
11403 | { |
11404 | char *note_name = "LINUX"; | |
11405 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11406 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11407 | } |
11408 | ||
11409 | char * | |
11410 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11411 | char *buf, |
11412 | int *bufsiz, | |
11413 | const void *ppc_tm_cfpr, | |
11414 | int size) | |
cb2366c1 EBM |
11415 | { |
11416 | char *note_name = "LINUX"; | |
11417 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11418 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11419 | } |
11420 | ||
11421 | char * | |
11422 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11423 | char *buf, |
11424 | int *bufsiz, | |
11425 | const void *ppc_tm_cvmx, | |
11426 | int size) | |
cb2366c1 EBM |
11427 | { |
11428 | char *note_name = "LINUX"; | |
11429 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11430 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11431 | } |
11432 | ||
11433 | char * | |
11434 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11435 | char *buf, |
11436 | int *bufsiz, | |
11437 | const void *ppc_tm_cvsx, | |
11438 | int size) | |
cb2366c1 EBM |
11439 | { |
11440 | char *note_name = "LINUX"; | |
11441 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11442 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11443 | } |
11444 | ||
11445 | char * | |
11446 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11447 | char *buf, |
11448 | int *bufsiz, | |
11449 | const void *ppc_tm_spr, | |
11450 | int size) | |
cb2366c1 EBM |
11451 | { |
11452 | char *note_name = "LINUX"; | |
11453 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11454 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11455 | } |
11456 | ||
11457 | char * | |
11458 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11459 | char *buf, |
11460 | int *bufsiz, | |
11461 | const void *ppc_tm_ctar, | |
11462 | int size) | |
cb2366c1 EBM |
11463 | { |
11464 | char *note_name = "LINUX"; | |
11465 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11466 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11467 | } |
11468 | ||
11469 | char * | |
11470 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11471 | char *buf, |
11472 | int *bufsiz, | |
11473 | const void *ppc_tm_cppr, | |
11474 | int size) | |
cb2366c1 EBM |
11475 | { |
11476 | char *note_name = "LINUX"; | |
11477 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11478 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11479 | } |
11480 | ||
11481 | char * | |
11482 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11483 | char *buf, |
11484 | int *bufsiz, | |
11485 | const void *ppc_tm_cdscr, | |
11486 | int size) | |
cb2366c1 EBM |
11487 | { |
11488 | char *note_name = "LINUX"; | |
11489 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11490 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11491 | } |
11492 | ||
0675e188 UW |
11493 | static char * |
11494 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11495 | char *buf, | |
11496 | int *bufsiz, | |
11497 | const void *s390_high_gprs, | |
11498 | int size) | |
11499 | { | |
11500 | char *note_name = "LINUX"; | |
11501 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11502 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11503 | s390_high_gprs, size); |
11504 | } | |
11505 | ||
d7eeb400 MS |
11506 | char * |
11507 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11508 | char *buf, |
11509 | int *bufsiz, | |
11510 | const void *s390_timer, | |
11511 | int size) | |
d7eeb400 MS |
11512 | { |
11513 | char *note_name = "LINUX"; | |
11514 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11515 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11516 | } |
11517 | ||
11518 | char * | |
11519 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11520 | char *buf, |
11521 | int *bufsiz, | |
11522 | const void *s390_todcmp, | |
11523 | int size) | |
d7eeb400 MS |
11524 | { |
11525 | char *note_name = "LINUX"; | |
11526 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11527 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11528 | } |
11529 | ||
11530 | char * | |
11531 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11532 | char *buf, |
11533 | int *bufsiz, | |
11534 | const void *s390_todpreg, | |
11535 | int size) | |
d7eeb400 MS |
11536 | { |
11537 | char *note_name = "LINUX"; | |
11538 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11539 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11540 | } |
11541 | ||
11542 | char * | |
11543 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11544 | char *buf, |
11545 | int *bufsiz, | |
11546 | const void *s390_ctrs, | |
11547 | int size) | |
d7eeb400 MS |
11548 | { |
11549 | char *note_name = "LINUX"; | |
11550 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11551 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11552 | } |
11553 | ||
11554 | char * | |
11555 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11556 | char *buf, |
11557 | int *bufsiz, | |
11558 | const void *s390_prefix, | |
11559 | int size) | |
d7eeb400 MS |
11560 | { |
11561 | char *note_name = "LINUX"; | |
11562 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11563 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11564 | } |
11565 | ||
355b81d9 UW |
11566 | char * |
11567 | elfcore_write_s390_last_break (bfd *abfd, | |
11568 | char *buf, | |
11569 | int *bufsiz, | |
11570 | const void *s390_last_break, | |
11571 | int size) | |
11572 | { | |
11573 | char *note_name = "LINUX"; | |
11574 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11575 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11576 | s390_last_break, size); |
11577 | } | |
11578 | ||
11579 | char * | |
11580 | elfcore_write_s390_system_call (bfd *abfd, | |
11581 | char *buf, | |
11582 | int *bufsiz, | |
11583 | const void *s390_system_call, | |
11584 | int size) | |
11585 | { | |
11586 | char *note_name = "LINUX"; | |
11587 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11588 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11589 | s390_system_call, size); |
11590 | } | |
11591 | ||
abb3f6cc NC |
11592 | char * |
11593 | elfcore_write_s390_tdb (bfd *abfd, | |
11594 | char *buf, | |
11595 | int *bufsiz, | |
11596 | const void *s390_tdb, | |
11597 | int size) | |
11598 | { | |
11599 | char *note_name = "LINUX"; | |
11600 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11601 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11602 | } |
11603 | ||
4ef9f41a AA |
11604 | char * |
11605 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11606 | char *buf, | |
11607 | int *bufsiz, | |
11608 | const void *s390_vxrs_low, | |
11609 | int size) | |
11610 | { | |
11611 | char *note_name = "LINUX"; | |
11612 | return elfcore_write_note (abfd, buf, bufsiz, | |
11613 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11614 | } | |
11615 | ||
11616 | char * | |
11617 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11618 | char *buf, | |
11619 | int *bufsiz, | |
11620 | const void *s390_vxrs_high, | |
11621 | int size) | |
11622 | { | |
11623 | char *note_name = "LINUX"; | |
11624 | return elfcore_write_note (abfd, buf, bufsiz, | |
11625 | note_name, NT_S390_VXRS_HIGH, | |
11626 | s390_vxrs_high, size); | |
11627 | } | |
11628 | ||
88ab90e8 AA |
11629 | char * |
11630 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11631 | char *buf, | |
11632 | int *bufsiz, | |
11633 | const void *s390_gs_cb, | |
11634 | int size) | |
11635 | { | |
11636 | char *note_name = "LINUX"; | |
11637 | return elfcore_write_note (abfd, buf, bufsiz, | |
11638 | note_name, NT_S390_GS_CB, | |
11639 | s390_gs_cb, size); | |
11640 | } | |
11641 | ||
11642 | char * | |
11643 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11644 | char *buf, | |
11645 | int *bufsiz, | |
11646 | const void *s390_gs_bc, | |
11647 | int size) | |
11648 | { | |
11649 | char *note_name = "LINUX"; | |
11650 | return elfcore_write_note (abfd, buf, bufsiz, | |
11651 | note_name, NT_S390_GS_BC, | |
11652 | s390_gs_bc, size); | |
11653 | } | |
11654 | ||
faa9a424 UW |
11655 | char * |
11656 | elfcore_write_arm_vfp (bfd *abfd, | |
11657 | char *buf, | |
11658 | int *bufsiz, | |
11659 | const void *arm_vfp, | |
11660 | int size) | |
11661 | { | |
11662 | char *note_name = "LINUX"; | |
11663 | return elfcore_write_note (abfd, buf, bufsiz, | |
11664 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11665 | } | |
11666 | ||
652451f8 YZ |
11667 | char * |
11668 | elfcore_write_aarch_tls (bfd *abfd, | |
11669 | char *buf, | |
11670 | int *bufsiz, | |
11671 | const void *aarch_tls, | |
11672 | int size) | |
11673 | { | |
11674 | char *note_name = "LINUX"; | |
11675 | return elfcore_write_note (abfd, buf, bufsiz, | |
11676 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11677 | } | |
11678 | ||
11679 | char * | |
11680 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11681 | char *buf, | |
11682 | int *bufsiz, | |
11683 | const void *aarch_hw_break, | |
11684 | int size) | |
11685 | { | |
11686 | char *note_name = "LINUX"; | |
11687 | return elfcore_write_note (abfd, buf, bufsiz, | |
11688 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11689 | } | |
11690 | ||
11691 | char * | |
11692 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11693 | char *buf, | |
11694 | int *bufsiz, | |
11695 | const void *aarch_hw_watch, | |
11696 | int size) | |
11697 | { | |
11698 | char *note_name = "LINUX"; | |
11699 | return elfcore_write_note (abfd, buf, bufsiz, | |
11700 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11701 | } | |
11702 | ||
ad1cc4e4 AH |
11703 | char * |
11704 | elfcore_write_aarch_sve (bfd *abfd, | |
11705 | char *buf, | |
11706 | int *bufsiz, | |
11707 | const void *aarch_sve, | |
11708 | int size) | |
11709 | { | |
11710 | char *note_name = "LINUX"; | |
11711 | return elfcore_write_note (abfd, buf, bufsiz, | |
11712 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11713 | } | |
11714 | ||
e6c3b5bf AH |
11715 | char * |
11716 | elfcore_write_aarch_pauth (bfd *abfd, | |
11717 | char *buf, | |
11718 | int *bufsiz, | |
11719 | const void *aarch_pauth, | |
11720 | int size) | |
11721 | { | |
11722 | char *note_name = "LINUX"; | |
11723 | return elfcore_write_note (abfd, buf, bufsiz, | |
11724 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11725 | } | |
11726 | ||
bb864ac1 CES |
11727 | char * |
11728 | elfcore_write_register_note (bfd *abfd, | |
11729 | char *buf, | |
11730 | int *bufsiz, | |
11731 | const char *section, | |
11732 | const void *data, | |
11733 | int size) | |
11734 | { | |
11735 | if (strcmp (section, ".reg2") == 0) | |
11736 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11737 | if (strcmp (section, ".reg-xfp") == 0) | |
11738 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11739 | if (strcmp (section, ".reg-xstate") == 0) |
11740 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11741 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11742 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11743 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11744 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11745 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11746 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11747 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11748 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11749 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11750 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11751 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11752 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11753 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11754 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11755 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11756 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11757 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11758 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11759 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11760 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11761 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11762 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11763 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11764 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11765 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11766 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11767 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11768 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11769 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11770 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11771 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11772 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11773 | if (strcmp (section, ".reg-s390-timer") == 0) |
11774 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11775 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11776 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11777 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11778 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11779 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11780 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11781 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11782 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11783 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11784 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11785 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11786 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11787 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11788 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11789 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11790 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11791 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11792 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11793 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11794 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11795 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11796 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11797 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11798 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11799 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11800 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11801 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11802 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11803 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11804 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11805 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11806 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
11807 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
11808 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11809 | return NULL; |
11810 | } | |
11811 | ||
b34976b6 | 11812 | static bfd_boolean |
276da9b3 L |
11813 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11814 | size_t align) | |
252b5132 | 11815 | { |
c044fabd | 11816 | char *p; |
252b5132 | 11817 | |
276da9b3 L |
11818 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11819 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11820 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11821 | align is less than 4, we use 4 byte alignment. */ | |
11822 | if (align < 4) | |
11823 | align = 4; | |
ef135d43 NC |
11824 | if (align != 4 && align != 8) |
11825 | return FALSE; | |
276da9b3 | 11826 | |
252b5132 RH |
11827 | p = buf; |
11828 | while (p < buf + size) | |
11829 | { | |
c044fabd | 11830 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11831 | Elf_Internal_Note in; |
11832 | ||
baea7ef1 AM |
11833 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11834 | return FALSE; | |
11835 | ||
dc810e39 | 11836 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11837 | |
dc810e39 | 11838 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11839 | in.namedata = xnp->name; |
baea7ef1 AM |
11840 | if (in.namesz > buf - in.namedata + size) |
11841 | return FALSE; | |
252b5132 | 11842 | |
dc810e39 | 11843 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11844 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11845 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11846 | if (in.descsz != 0 |
11847 | && (in.descdata >= buf + size | |
11848 | || in.descsz > buf - in.descdata + size)) | |
11849 | return FALSE; | |
252b5132 | 11850 | |
718175fa | 11851 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11852 | { |
718175fa JK |
11853 | default: |
11854 | return TRUE; | |
11855 | ||
11856 | case bfd_core: | |
f64e188b | 11857 | { |
8acbedd6 | 11858 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11859 | struct |
718175fa | 11860 | { |
f64e188b | 11861 | const char * string; |
8acbedd6 | 11862 | size_t len; |
f64e188b | 11863 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11864 | } |
f64e188b | 11865 | grokers[] = |
b15fa79e | 11866 | { |
8acbedd6 | 11867 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11868 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11869 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11870 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11871 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
864619bb KS |
11872 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
11873 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note) | |
f64e188b | 11874 | }; |
8acbedd6 | 11875 | #undef GROKER_ELEMENT |
f64e188b NC |
11876 | int i; |
11877 | ||
11878 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11879 | { |
11880 | if (in.namesz >= grokers[i].len | |
11881 | && strncmp (in.namedata, grokers[i].string, | |
11882 | grokers[i].len) == 0) | |
11883 | { | |
11884 | if (! grokers[i].func (abfd, & in)) | |
11885 | return FALSE; | |
11886 | break; | |
11887 | } | |
11888 | } | |
f64e188b NC |
11889 | break; |
11890 | } | |
718175fa JK |
11891 | |
11892 | case bfd_object: | |
11893 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11894 | { | |
11895 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11896 | return FALSE; | |
11897 | } | |
e21e5835 NC |
11898 | else if (in.namesz == sizeof "stapsdt" |
11899 | && strcmp (in.namedata, "stapsdt") == 0) | |
11900 | { | |
11901 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11902 | return FALSE; | |
11903 | } | |
718175fa | 11904 | break; |
08a40648 | 11905 | } |
252b5132 | 11906 | |
276da9b3 | 11907 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11908 | } |
11909 | ||
718175fa JK |
11910 | return TRUE; |
11911 | } | |
11912 | ||
864619bb | 11913 | bfd_boolean |
276da9b3 L |
11914 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11915 | size_t align) | |
718175fa JK |
11916 | { |
11917 | char *buf; | |
11918 | ||
957e1fc1 | 11919 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11920 | return TRUE; |
11921 | ||
11922 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11923 | return FALSE; | |
11924 | ||
2bb3687b | 11925 | buf = (char *) _bfd_malloc_and_read (abfd, size + 1, size); |
718175fa JK |
11926 | if (buf == NULL) |
11927 | return FALSE; | |
11928 | ||
f64e188b NC |
11929 | /* PR 17512: file: ec08f814 |
11930 | 0-termintate the buffer so that string searches will not overflow. */ | |
11931 | buf[size] = 0; | |
11932 | ||
2bb3687b | 11933 | if (!elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11934 | { |
11935 | free (buf); | |
11936 | return FALSE; | |
11937 | } | |
11938 | ||
252b5132 | 11939 | free (buf); |
b34976b6 | 11940 | return TRUE; |
252b5132 | 11941 | } |
98d8431c JB |
11942 | \f |
11943 | /* Providing external access to the ELF program header table. */ | |
11944 | ||
11945 | /* Return an upper bound on the number of bytes required to store a | |
11946 | copy of ABFD's program header table entries. Return -1 if an error | |
11947 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11948 | |
98d8431c | 11949 | long |
217aa764 | 11950 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11951 | { |
11952 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11953 | { | |
11954 | bfd_set_error (bfd_error_wrong_format); | |
11955 | return -1; | |
11956 | } | |
11957 | ||
936e320b | 11958 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11959 | } |
11960 | ||
98d8431c JB |
11961 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11962 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11963 | defined in include/elf/internal.h. To find out how large the | |
11964 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11965 | ||
11966 | Return the number of program header table entries read, or -1 if an | |
11967 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11968 | |
98d8431c | 11969 | int |
217aa764 | 11970 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11971 | { |
11972 | int num_phdrs; | |
11973 | ||
11974 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11975 | { | |
11976 | bfd_set_error (bfd_error_wrong_format); | |
11977 | return -1; | |
11978 | } | |
11979 | ||
11980 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
11981 | if (num_phdrs != 0) |
11982 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
11983 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
11984 | |
11985 | return num_phdrs; | |
11986 | } | |
ae4221d7 | 11987 | |
db6751f2 | 11988 | enum elf_reloc_type_class |
7e612e98 AM |
11989 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11990 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11991 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11992 | { |
11993 | return reloc_class_normal; | |
11994 | } | |
f8df10f4 | 11995 | |
47d9a591 | 11996 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11997 | relocation against a local symbol. */ |
11998 | ||
11999 | bfd_vma | |
217aa764 AM |
12000 | _bfd_elf_rela_local_sym (bfd *abfd, |
12001 | Elf_Internal_Sym *sym, | |
8517fae7 | 12002 | asection **psec, |
217aa764 | 12003 | Elf_Internal_Rela *rel) |
f8df10f4 | 12004 | { |
8517fae7 | 12005 | asection *sec = *psec; |
f8df10f4 JJ |
12006 | bfd_vma relocation; |
12007 | ||
6835821b AM |
12008 | relocation = (sec->output_section->vma |
12009 | + sec->output_offset | |
12010 | + sym->st_value); | |
f8df10f4 | 12011 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 12012 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 12013 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 12014 | { |
f8df10f4 | 12015 | rel->r_addend = |
8517fae7 | 12016 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 12017 | elf_section_data (sec)->sec_info, |
753731ee AM |
12018 | sym->st_value + rel->r_addend); |
12019 | if (sec != *psec) | |
12020 | { | |
12021 | /* If we have changed the section, and our original section is | |
12022 | marked with SEC_EXCLUDE, it means that the original | |
12023 | SEC_MERGE section has been completely subsumed in some | |
12024 | other SEC_MERGE section. In this case, we need to leave | |
12025 | some info around for --emit-relocs. */ | |
12026 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12027 | sec->kept_section = *psec; | |
12028 | sec = *psec; | |
12029 | } | |
8517fae7 AM |
12030 | rel->r_addend -= relocation; |
12031 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12032 | } |
12033 | return relocation; | |
12034 | } | |
c629eae0 JJ |
12035 | |
12036 | bfd_vma | |
217aa764 AM |
12037 | _bfd_elf_rel_local_sym (bfd *abfd, |
12038 | Elf_Internal_Sym *sym, | |
12039 | asection **psec, | |
12040 | bfd_vma addend) | |
47d9a591 | 12041 | { |
c629eae0 JJ |
12042 | asection *sec = *psec; |
12043 | ||
6835821b | 12044 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12045 | return sym->st_value + addend; |
12046 | ||
12047 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12048 | elf_section_data (sec)->sec_info, |
753731ee | 12049 | sym->st_value + addend); |
c629eae0 JJ |
12050 | } |
12051 | ||
37b01f6a DG |
12052 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12053 | the new offset within the section, based upon changes made to the | |
12054 | section. Returns -1 if the offset is now invalid. | |
12055 | The offset (in abnd out) is in target sized bytes, however big a | |
12056 | byte may be. */ | |
12057 | ||
c629eae0 | 12058 | bfd_vma |
217aa764 | 12059 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12060 | struct bfd_link_info *info, |
217aa764 AM |
12061 | asection *sec, |
12062 | bfd_vma offset) | |
c629eae0 | 12063 | { |
68bfbfcc | 12064 | switch (sec->sec_info_type) |
65765700 | 12065 | { |
dbaa2011 | 12066 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12067 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12068 | offset); | |
dbaa2011 | 12069 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12070 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12071 | |
65765700 | 12072 | default: |
310fd250 L |
12073 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12074 | { | |
37b01f6a | 12075 | /* Reverse the offset. */ |
310fd250 L |
12076 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12077 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12078 | |
12079 | /* address_size and sec->size are in octets. Convert | |
12080 | to bytes before subtracting the original offset. */ | |
61826503 | 12081 | offset = ((sec->size - address_size) |
bb294208 | 12082 | / bfd_octets_per_byte (abfd, sec) - offset); |
310fd250 | 12083 | } |
65765700 JJ |
12084 | return offset; |
12085 | } | |
c629eae0 | 12086 | } |
3333a7c3 RM |
12087 | \f |
12088 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12089 | reconstruct an ELF file by reading the segments out of remote memory | |
12090 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12091 | points to. If not null, *LOADBASEP is filled in with the difference | |
12092 | between the VMAs from which the segments were read, and the VMAs the | |
12093 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12094 | ||
12095 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12096 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12097 | should return zero on success or an `errno' code on failure. TEMPL must | |
12098 | be a BFD for an ELF target with the word size and byte order found in | |
12099 | the remote memory. */ | |
12100 | ||
12101 | bfd * | |
217aa764 AM |
12102 | bfd_elf_bfd_from_remote_memory |
12103 | (bfd *templ, | |
12104 | bfd_vma ehdr_vma, | |
f0a5d95a | 12105 | bfd_size_type size, |
217aa764 | 12106 | bfd_vma *loadbasep, |
fe78531d | 12107 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12108 | { |
12109 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12110 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12111 | } |
4c45e5c9 JJ |
12112 | \f |
12113 | long | |
c9727e01 AM |
12114 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12115 | long symcount ATTRIBUTE_UNUSED, | |
12116 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12117 | long dynsymcount, |
c9727e01 AM |
12118 | asymbol **dynsyms, |
12119 | asymbol **ret) | |
4c45e5c9 JJ |
12120 | { |
12121 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12122 | asection *relplt; | |
12123 | asymbol *s; | |
12124 | const char *relplt_name; | |
12125 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
12126 | arelent *p; | |
12127 | long count, i, n; | |
12128 | size_t size; | |
12129 | Elf_Internal_Shdr *hdr; | |
12130 | char *names; | |
12131 | asection *plt; | |
12132 | ||
8615f3f2 AM |
12133 | *ret = NULL; |
12134 | ||
90e3cdf2 JJ |
12135 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12136 | return 0; | |
12137 | ||
8615f3f2 AM |
12138 | if (dynsymcount <= 0) |
12139 | return 0; | |
12140 | ||
4c45e5c9 JJ |
12141 | if (!bed->plt_sym_val) |
12142 | return 0; | |
12143 | ||
12144 | relplt_name = bed->relplt_name; | |
12145 | if (relplt_name == NULL) | |
d35fd659 | 12146 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12147 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12148 | if (relplt == NULL) | |
12149 | return 0; | |
12150 | ||
12151 | hdr = &elf_section_data (relplt)->this_hdr; | |
12152 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12153 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12154 | return 0; | |
12155 | ||
12156 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12157 | if (plt == NULL) | |
12158 | return 0; | |
12159 | ||
12160 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 12161 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
12162 | return -1; |
12163 | ||
eea6121a | 12164 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12165 | size = count * sizeof (asymbol); |
12166 | p = relplt->relocation; | |
cb53bf42 | 12167 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12168 | { |
12169 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12170 | if (p->addend != 0) | |
12171 | { | |
12172 | #ifdef BFD64 | |
12173 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12174 | #else | |
12175 | size += sizeof ("+0x") - 1 + 8; | |
12176 | #endif | |
12177 | } | |
12178 | } | |
4c45e5c9 | 12179 | |
a50b1753 | 12180 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12181 | if (s == NULL) |
12182 | return -1; | |
12183 | ||
12184 | names = (char *) (s + count); | |
12185 | p = relplt->relocation; | |
12186 | n = 0; | |
cb53bf42 | 12187 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12188 | { |
12189 | size_t len; | |
12190 | bfd_vma addr; | |
12191 | ||
12192 | addr = bed->plt_sym_val (i, plt, p); | |
12193 | if (addr == (bfd_vma) -1) | |
12194 | continue; | |
12195 | ||
12196 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12197 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12198 | we are defining a symbol, ensure one of them is set. */ | |
12199 | if ((s->flags & BSF_LOCAL) == 0) | |
12200 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12201 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12202 | s->section = plt; |
12203 | s->value = addr - plt->vma; | |
12204 | s->name = names; | |
8f39ba8e | 12205 | s->udata.p = NULL; |
4c45e5c9 JJ |
12206 | len = strlen ((*p->sym_ptr_ptr)->name); |
12207 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12208 | names += len; | |
041de40d AM |
12209 | if (p->addend != 0) |
12210 | { | |
1d770845 | 12211 | char buf[30], *a; |
d324f6d6 | 12212 | |
041de40d AM |
12213 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12214 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12215 | bfd_sprintf_vma (abfd, buf, p->addend); |
12216 | for (a = buf; *a == '0'; ++a) | |
12217 | ; | |
12218 | len = strlen (a); | |
12219 | memcpy (names, a, len); | |
12220 | names += len; | |
041de40d | 12221 | } |
4c45e5c9 JJ |
12222 | memcpy (names, "@plt", sizeof ("@plt")); |
12223 | names += sizeof ("@plt"); | |
8f39ba8e | 12224 | ++s, ++n; |
4c45e5c9 JJ |
12225 | } |
12226 | ||
12227 | return n; | |
12228 | } | |
3d7f7666 | 12229 | |
821e6ff6 AM |
12230 | /* It is only used by x86-64 so far. |
12231 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12232 | but current usage would allow all of _bfd_std_section to be zero. */ |
12233 | static const asymbol lcomm_sym | |
12234 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12235 | asection _bfd_elf_large_com_section |
7eacd66b | 12236 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12237 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12238 | |
cc364be6 AM |
12239 | bfd_boolean |
12240 | _bfd_elf_final_write_processing (bfd *abfd) | |
06f44071 AM |
12241 | { |
12242 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12243 | |
12244 | i_ehdrp = elf_elfheader (abfd); | |
12245 | ||
06f44071 AM |
12246 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12247 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12248 | |
df3a023b AM |
12249 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
12250 | SHF_GNU_MBIND sections or symbols of STT_GNU_IFUNC type or | |
12251 | STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12252 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12253 | { | |
12254 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12255 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12256 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12257 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12258 | { | |
12259 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
12260 | _bfd_error_handler (_("GNU_MBIND section is unsupported")); | |
12261 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) | |
12262 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is unsupported")); | |
12263 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) | |
12264 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is unsupported")); | |
9aea1e31 | 12265 | bfd_set_error (bfd_error_sorry); |
cc364be6 AM |
12266 | return FALSE; |
12267 | } | |
12268 | } | |
12269 | return TRUE; | |
d1036acb | 12270 | } |
fcb93ecf PB |
12271 | |
12272 | ||
12273 | /* Return TRUE for ELF symbol types that represent functions. | |
12274 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12275 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12276 | |
12277 | bfd_boolean | |
12278 | _bfd_elf_is_function_type (unsigned int type) | |
12279 | { | |
d8045f23 NC |
12280 | return (type == STT_FUNC |
12281 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12282 | } |
9f296da3 | 12283 | |
aef36ac1 AM |
12284 | /* If the ELF symbol SYM might be a function in SEC, return the |
12285 | function size and set *CODE_OFF to the function's entry point, | |
12286 | otherwise return zero. */ | |
9f296da3 | 12287 | |
aef36ac1 AM |
12288 | bfd_size_type |
12289 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12290 | bfd_vma *code_off) | |
9f296da3 | 12291 | { |
aef36ac1 AM |
12292 | bfd_size_type size; |
12293 | ||
ff9e0f5b | 12294 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12295 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12296 | || sym->section != sec) | |
12297 | return 0; | |
ff9e0f5b | 12298 | |
ff9e0f5b | 12299 | *code_off = sym->value; |
aef36ac1 AM |
12300 | size = 0; |
12301 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12302 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12303 | if (size == 0) | |
12304 | size = 1; | |
12305 | return size; | |
9f296da3 | 12306 | } |