Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
82704155 | 3 | Copyright (C) 1993-2019 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 |
95a6d235 | 299 | || shstrtabsize > bfd_get_file_size (abfd) |
06614111 NC |
300 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
301 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL) | |
c6c60d09 JJ |
302 | shstrtab = NULL; |
303 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
304 | { | |
305 | if (bfd_get_error () != bfd_error_system_call) | |
306 | bfd_set_error (bfd_error_file_truncated); | |
06614111 | 307 | bfd_release (abfd, shstrtab); |
c6c60d09 | 308 | shstrtab = NULL; |
3471d59d CC |
309 | /* Once we've failed to read it, make sure we don't keep |
310 | trying. Otherwise, we'll keep allocating space for | |
311 | the string table over and over. */ | |
312 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
313 | } |
314 | else | |
315 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 316 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 317 | } |
f075ee0c | 318 | return (char *) shstrtab; |
252b5132 RH |
319 | } |
320 | ||
321 | char * | |
217aa764 AM |
322 | bfd_elf_string_from_elf_section (bfd *abfd, |
323 | unsigned int shindex, | |
324 | unsigned int strindex) | |
252b5132 RH |
325 | { |
326 | Elf_Internal_Shdr *hdr; | |
327 | ||
328 | if (strindex == 0) | |
329 | return ""; | |
330 | ||
74f2e02b AM |
331 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
332 | return NULL; | |
333 | ||
252b5132 RH |
334 | hdr = elf_elfsections (abfd)[shindex]; |
335 | ||
06614111 NC |
336 | if (hdr->contents == NULL) |
337 | { | |
338 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
339 | { | |
340 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 341 | /* xgettext:c-format */ |
871b3ab2 | 342 | _bfd_error_handler (_("%pB: attempt to load strings from" |
63a5468a | 343 | " a non-string section (number %d)"), |
06614111 NC |
344 | abfd, shindex); |
345 | return NULL; | |
346 | } | |
b1fa9dd6 | 347 | |
06614111 NC |
348 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
349 | return NULL; | |
350 | } | |
eed5def8 NC |
351 | else |
352 | { | |
353 | /* PR 24273: The string section's contents may have already | |
354 | been loaded elsewhere, eg because a corrupt file has the | |
355 | string section index in the ELF header pointing at a group | |
356 | section. So be paranoid, and test that the last byte of | |
357 | the section is zero. */ | |
358 | if (hdr->sh_size == 0 || hdr->contents[hdr->sh_size - 1] != 0) | |
359 | return NULL; | |
360 | } | |
252b5132 RH |
361 | |
362 | if (strindex >= hdr->sh_size) | |
363 | { | |
1b3a8575 | 364 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 365 | _bfd_error_handler |
695344c0 | 366 | /* xgettext:c-format */ |
2dcf00ce AM |
367 | (_("%pB: invalid string offset %u >= %" PRIu64 " for section `%s'"), |
368 | abfd, strindex, (uint64_t) hdr->sh_size, | |
1b3a8575 | 369 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 370 | ? ".shstrtab" |
1b3a8575 | 371 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 372 | return NULL; |
252b5132 RH |
373 | } |
374 | ||
375 | return ((char *) hdr->contents) + strindex; | |
376 | } | |
377 | ||
6cdc0ccc AM |
378 | /* Read and convert symbols to internal format. |
379 | SYMCOUNT specifies the number of symbols to read, starting from | |
380 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
381 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
382 | symbols, and symbol section index extensions, respectively. |
383 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
384 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
385 | |
386 | Elf_Internal_Sym * | |
217aa764 AM |
387 | bfd_elf_get_elf_syms (bfd *ibfd, |
388 | Elf_Internal_Shdr *symtab_hdr, | |
389 | size_t symcount, | |
390 | size_t symoffset, | |
391 | Elf_Internal_Sym *intsym_buf, | |
392 | void *extsym_buf, | |
393 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
394 | { |
395 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 396 | void *alloc_ext; |
df622259 | 397 | const bfd_byte *esym; |
6cdc0ccc AM |
398 | Elf_External_Sym_Shndx *alloc_extshndx; |
399 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 400 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
401 | Elf_Internal_Sym *isym; |
402 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 403 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
404 | size_t extsym_size; |
405 | bfd_size_type amt; | |
406 | file_ptr pos; | |
407 | ||
e44a2c9c AM |
408 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
409 | abort (); | |
410 | ||
6cdc0ccc AM |
411 | if (symcount == 0) |
412 | return intsym_buf; | |
413 | ||
414 | /* Normal syms might have section extension entries. */ | |
415 | shndx_hdr = NULL; | |
6a40cf0c NC |
416 | if (elf_symtab_shndx_list (ibfd) != NULL) |
417 | { | |
418 | elf_section_list * entry; | |
419 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
420 | ||
421 | /* Find an index section that is linked to this symtab section. */ | |
422 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
423 | { |
424 | /* PR 20063. */ | |
425 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
426 | continue; | |
427 | ||
428 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
429 | { | |
430 | shndx_hdr = & entry->hdr; | |
431 | break; | |
432 | }; | |
433 | } | |
6a40cf0c NC |
434 | |
435 | if (shndx_hdr == NULL) | |
436 | { | |
437 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
438 | /* Not really accurate, but this was how the old code used to work. */ | |
439 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
440 | /* Otherwise we do nothing. The assumption is that | |
441 | the index table will not be needed. */ | |
442 | } | |
443 | } | |
6cdc0ccc AM |
444 | |
445 | /* Read the symbols. */ | |
446 | alloc_ext = NULL; | |
447 | alloc_extshndx = NULL; | |
4dd07732 | 448 | alloc_intsym = NULL; |
6cdc0ccc AM |
449 | bed = get_elf_backend_data (ibfd); |
450 | extsym_size = bed->s->sizeof_sym; | |
ef53be89 | 451 | amt = (bfd_size_type) symcount * extsym_size; |
6cdc0ccc AM |
452 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
453 | if (extsym_buf == NULL) | |
454 | { | |
d0fb9a8d | 455 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
456 | extsym_buf = alloc_ext; |
457 | } | |
458 | if (extsym_buf == NULL | |
459 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
460 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
461 | { | |
462 | intsym_buf = NULL; | |
463 | goto out; | |
464 | } | |
465 | ||
466 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
467 | extshndx_buf = NULL; | |
468 | else | |
469 | { | |
ef53be89 | 470 | amt = (bfd_size_type) symcount * sizeof (Elf_External_Sym_Shndx); |
6cdc0ccc AM |
471 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
472 | if (extshndx_buf == NULL) | |
473 | { | |
a50b1753 | 474 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
07d6d2b8 | 475 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); |
6cdc0ccc AM |
476 | extshndx_buf = alloc_extshndx; |
477 | } | |
478 | if (extshndx_buf == NULL | |
479 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
480 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
481 | { | |
482 | intsym_buf = NULL; | |
483 | goto out; | |
484 | } | |
485 | } | |
486 | ||
487 | if (intsym_buf == NULL) | |
488 | { | |
a50b1753 | 489 | alloc_intsym = (Elf_Internal_Sym *) |
07d6d2b8 | 490 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); |
4dd07732 | 491 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
492 | if (intsym_buf == NULL) |
493 | goto out; | |
494 | } | |
495 | ||
496 | /* Convert the symbols to internal form. */ | |
497 | isymend = intsym_buf + symcount; | |
a50b1753 | 498 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 499 | shndx = extshndx_buf; |
6cdc0ccc AM |
500 | isym < isymend; |
501 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
502 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
503 | { | |
504 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 505 | /* xgettext:c-format */ |
871b3ab2 | 506 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 507 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 508 | ibfd, (unsigned long) symoffset); |
4dd07732 AM |
509 | if (alloc_intsym != NULL) |
510 | free (alloc_intsym); | |
8384fb8f AM |
511 | intsym_buf = NULL; |
512 | goto out; | |
513 | } | |
6cdc0ccc AM |
514 | |
515 | out: | |
516 | if (alloc_ext != NULL) | |
517 | free (alloc_ext); | |
518 | if (alloc_extshndx != NULL) | |
519 | free (alloc_extshndx); | |
520 | ||
521 | return intsym_buf; | |
522 | } | |
523 | ||
5cab59f6 AM |
524 | /* Look up a symbol name. */ |
525 | const char * | |
be8dd2ca AM |
526 | bfd_elf_sym_name (bfd *abfd, |
527 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
528 | Elf_Internal_Sym *isym, |
529 | asection *sym_sec) | |
5cab59f6 | 530 | { |
26c61ae5 | 531 | const char *name; |
5cab59f6 | 532 | unsigned int iname = isym->st_name; |
be8dd2ca | 533 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 534 | |
138f35cc JJ |
535 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
536 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 537 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
538 | { |
539 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
540 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
541 | } | |
542 | ||
26c61ae5 L |
543 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
544 | if (name == NULL) | |
545 | name = "(null)"; | |
546 | else if (sym_sec && *name == '\0') | |
fd361982 | 547 | name = bfd_section_name (sym_sec); |
26c61ae5 L |
548 | |
549 | return name; | |
5cab59f6 AM |
550 | } |
551 | ||
dbb410c3 AM |
552 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
553 | sections. The first element is the flags, the rest are section | |
554 | pointers. */ | |
555 | ||
556 | typedef union elf_internal_group { | |
557 | Elf_Internal_Shdr *shdr; | |
558 | unsigned int flags; | |
559 | } Elf_Internal_Group; | |
560 | ||
b885599b AM |
561 | /* Return the name of the group signature symbol. Why isn't the |
562 | signature just a string? */ | |
563 | ||
564 | static const char * | |
217aa764 | 565 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 566 | { |
9dce4196 | 567 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
568 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
569 | Elf_External_Sym_Shndx eshndx; | |
570 | Elf_Internal_Sym isym; | |
b885599b | 571 | |
13792e9d L |
572 | /* First we need to ensure the symbol table is available. Make sure |
573 | that it is a symbol table section. */ | |
4fbb74a6 AM |
574 | if (ghdr->sh_link >= elf_numsections (abfd)) |
575 | return NULL; | |
13792e9d L |
576 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
577 | if (hdr->sh_type != SHT_SYMTAB | |
578 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
579 | return NULL; |
580 | ||
9dce4196 AM |
581 | /* Go read the symbol. */ |
582 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
583 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
584 | &isym, esym, &eshndx) == NULL) | |
b885599b | 585 | return NULL; |
9dce4196 | 586 | |
26c61ae5 | 587 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
588 | } |
589 | ||
dbb410c3 AM |
590 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
591 | ||
b34976b6 | 592 | static bfd_boolean |
217aa764 | 593 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
594 | { |
595 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
596 | ||
597 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
598 | is set to -1 if there are no SHT_GROUP sections. */ | |
599 | if (num_group == 0) | |
600 | { | |
601 | unsigned int i, shnum; | |
602 | ||
603 | /* First count the number of groups. If we have a SHT_GROUP | |
604 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 605 | shnum = elf_numsections (abfd); |
dbb410c3 | 606 | num_group = 0; |
08a40648 | 607 | |
44534af3 | 608 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 609 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 610 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
611 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
612 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 613 | |
dbb410c3 AM |
614 | for (i = 0; i < shnum; i++) |
615 | { | |
616 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 617 | |
44534af3 | 618 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
619 | num_group += 1; |
620 | } | |
621 | ||
622 | if (num_group == 0) | |
20dbb49d L |
623 | { |
624 | num_group = (unsigned) -1; | |
625 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 626 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
627 | } |
628 | else | |
dbb410c3 AM |
629 | { |
630 | /* We keep a list of elf section headers for group sections, | |
631 | so we can find them quickly. */ | |
20dbb49d | 632 | bfd_size_type amt; |
d0fb9a8d | 633 | |
20dbb49d | 634 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 | 635 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
07d6d2b8 | 636 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); |
dbb410c3 | 637 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 638 | return FALSE; |
4bba0fb1 AM |
639 | memset (elf_tdata (abfd)->group_sect_ptr, 0, |
640 | num_group * sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 641 | num_group = 0; |
ce497010 | 642 | |
dbb410c3 AM |
643 | for (i = 0; i < shnum; i++) |
644 | { | |
645 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 646 | |
44534af3 | 647 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 648 | { |
973ffd63 | 649 | unsigned char *src; |
dbb410c3 AM |
650 | Elf_Internal_Group *dest; |
651 | ||
07d6d2b8 AM |
652 | /* Make sure the group section has a BFD section |
653 | attached to it. */ | |
654 | if (!bfd_section_from_shdr (abfd, i)) | |
655 | return FALSE; | |
656 | ||
dbb410c3 AM |
657 | /* Add to list of sections. */ |
658 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
659 | num_group += 1; | |
660 | ||
661 | /* Read the raw contents. */ | |
662 | BFD_ASSERT (sizeof (*dest) >= 4); | |
663 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 | 664 | shdr->contents = (unsigned char *) |
eed5def8 | 665 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); |
1783205a NC |
666 | /* PR binutils/4110: Handle corrupt group headers. */ |
667 | if (shdr->contents == NULL) | |
668 | { | |
669 | _bfd_error_handler | |
695344c0 | 670 | /* xgettext:c-format */ |
871b3ab2 | 671 | (_("%pB: corrupt size field in group section" |
2dcf00ce AM |
672 | " header: %#" PRIx64), |
673 | abfd, (uint64_t) shdr->sh_size); | |
1783205a | 674 | bfd_set_error (bfd_error_bad_value); |
493a3386 NC |
675 | -- num_group; |
676 | continue; | |
1783205a NC |
677 | } |
678 | ||
679 | memset (shdr->contents, 0, amt); | |
680 | ||
681 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
682 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
683 | != shdr->sh_size)) | |
493a3386 NC |
684 | { |
685 | _bfd_error_handler | |
695344c0 | 686 | /* xgettext:c-format */ |
871b3ab2 | 687 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
688 | " header: %#" PRIx64 ""), |
689 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
690 | bfd_set_error (bfd_error_bad_value); |
691 | -- num_group; | |
63a5468a AM |
692 | /* PR 17510: If the group contents are even |
693 | partially corrupt, do not allow any of the | |
694 | contents to be used. */ | |
493a3386 NC |
695 | memset (shdr->contents, 0, amt); |
696 | continue; | |
697 | } | |
708d7d0d | 698 | |
dbb410c3 AM |
699 | /* Translate raw contents, a flag word followed by an |
700 | array of elf section indices all in target byte order, | |
701 | to the flag word followed by an array of elf section | |
702 | pointers. */ | |
703 | src = shdr->contents + shdr->sh_size; | |
704 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 705 | |
dbb410c3 AM |
706 | while (1) |
707 | { | |
708 | unsigned int idx; | |
709 | ||
710 | src -= 4; | |
711 | --dest; | |
712 | idx = H_GET_32 (abfd, src); | |
713 | if (src == shdr->contents) | |
714 | { | |
715 | dest->flags = idx; | |
b885599b AM |
716 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
717 | shdr->bfd_section->flags | |
718 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
719 | break; |
720 | } | |
4bba0fb1 | 721 | if (idx < shnum) |
bae363f1 L |
722 | { |
723 | dest->shdr = elf_elfsections (abfd)[idx]; | |
724 | /* PR binutils/23199: All sections in a | |
725 | section group should be marked with | |
726 | SHF_GROUP. But some tools generate | |
727 | broken objects without SHF_GROUP. Fix | |
728 | them up here. */ | |
729 | dest->shdr->sh_flags |= SHF_GROUP; | |
730 | } | |
4bba0fb1 AM |
731 | if (idx >= shnum |
732 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 733 | { |
4eca0228 | 734 | _bfd_error_handler |
4bba0fb1 AM |
735 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
736 | abfd, i); | |
737 | dest->shdr = NULL; | |
dbb410c3 | 738 | } |
dbb410c3 AM |
739 | } |
740 | } | |
741 | } | |
493a3386 NC |
742 | |
743 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
744 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
745 | { | |
746 | elf_tdata (abfd)->num_group = num_group; | |
747 | ||
748 | /* If all groups are invalid then fail. */ | |
749 | if (num_group == 0) | |
750 | { | |
751 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
752 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 753 | _bfd_error_handler |
871b3ab2 | 754 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
755 | bfd_set_error (bfd_error_bad_value); |
756 | } | |
757 | } | |
dbb410c3 AM |
758 | } |
759 | } | |
760 | ||
761 | if (num_group != (unsigned) -1) | |
762 | { | |
564e11c9 JW |
763 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
764 | unsigned int j; | |
dbb410c3 | 765 | |
564e11c9 | 766 | for (j = 0; j < num_group; j++) |
dbb410c3 | 767 | { |
564e11c9 JW |
768 | /* Begin search from previous found group. */ |
769 | unsigned i = (j + search_offset) % num_group; | |
770 | ||
dbb410c3 | 771 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 772 | Elf_Internal_Group *idx; |
0c54f692 | 773 | bfd_size_type n_elt; |
ce497010 NC |
774 | |
775 | if (shdr == NULL) | |
776 | continue; | |
777 | ||
778 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
779 | if (idx == NULL || shdr->sh_size < 4) |
780 | { | |
781 | /* See PR 21957 for a reproducer. */ | |
782 | /* xgettext:c-format */ | |
871b3ab2 | 783 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
784 | abfd, shdr->bfd_section); |
785 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
786 | bfd_set_error (bfd_error_bad_value); | |
787 | return FALSE; | |
788 | } | |
ce497010 | 789 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
790 | |
791 | /* Look through this group's sections to see if current | |
792 | section is a member. */ | |
793 | while (--n_elt != 0) | |
794 | if ((++idx)->shdr == hdr) | |
795 | { | |
e0e8c97f | 796 | asection *s = NULL; |
dbb410c3 AM |
797 | |
798 | /* We are a member of this group. Go looking through | |
799 | other members to see if any others are linked via | |
800 | next_in_group. */ | |
801 | idx = (Elf_Internal_Group *) shdr->contents; | |
802 | n_elt = shdr->sh_size / 4; | |
803 | while (--n_elt != 0) | |
4bba0fb1 AM |
804 | if ((++idx)->shdr != NULL |
805 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 806 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
807 | break; |
808 | if (n_elt != 0) | |
809 | { | |
dbb410c3 AM |
810 | /* Snarf the group name from other member, and |
811 | insert current section in circular list. */ | |
945906ff AM |
812 | elf_group_name (newsect) = elf_group_name (s); |
813 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
814 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
815 | } |
816 | else | |
817 | { | |
dbb410c3 AM |
818 | const char *gname; |
819 | ||
b885599b AM |
820 | gname = group_signature (abfd, shdr); |
821 | if (gname == NULL) | |
b34976b6 | 822 | return FALSE; |
945906ff | 823 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
824 | |
825 | /* Start a circular list with one element. */ | |
945906ff | 826 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 827 | } |
b885599b | 828 | |
9dce4196 AM |
829 | /* If the group section has been created, point to the |
830 | new member. */ | |
dbb410c3 | 831 | if (shdr->bfd_section != NULL) |
945906ff | 832 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 833 | |
564e11c9 JW |
834 | elf_tdata (abfd)->group_search_offset = i; |
835 | j = num_group - 1; | |
dbb410c3 AM |
836 | break; |
837 | } | |
838 | } | |
839 | } | |
840 | ||
945906ff | 841 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 842 | { |
695344c0 | 843 | /* xgettext:c-format */ |
871b3ab2 | 844 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 845 | abfd, newsect); |
493a3386 | 846 | return FALSE; |
dbb410c3 | 847 | } |
b34976b6 | 848 | return TRUE; |
dbb410c3 AM |
849 | } |
850 | ||
3d7f7666 | 851 | bfd_boolean |
dd863624 | 852 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
853 | { |
854 | unsigned int i; | |
855 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
856 | bfd_boolean result = TRUE; | |
dd863624 L |
857 | asection *s; |
858 | ||
859 | /* Process SHF_LINK_ORDER. */ | |
860 | for (s = abfd->sections; s != NULL; s = s->next) | |
861 | { | |
862 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
863 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
864 | { | |
865 | unsigned int elfsec = this_hdr->sh_link; | |
866 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
867 | not set the sh_link or sh_info fields. Hence we could | |
868 | get the situation where elfsec is 0. */ | |
869 | if (elfsec == 0) | |
870 | { | |
4fbb74a6 | 871 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
872 | if (bed->link_order_error_handler) |
873 | bed->link_order_error_handler | |
695344c0 | 874 | /* xgettext:c-format */ |
871b3ab2 | 875 | (_("%pB: warning: sh_link not set for section `%pA'"), |
dd863624 L |
876 | abfd, s); |
877 | } | |
878 | else | |
879 | { | |
91d6fa6a | 880 | asection *linksec = NULL; |
25bbc984 | 881 | |
4fbb74a6 AM |
882 | if (elfsec < elf_numsections (abfd)) |
883 | { | |
884 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 885 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 886 | } |
25bbc984 L |
887 | |
888 | /* PR 1991, 2008: | |
889 | Some strip/objcopy may leave an incorrect value in | |
890 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 891 | if (linksec == NULL) |
25bbc984 | 892 | { |
4eca0228 | 893 | _bfd_error_handler |
695344c0 | 894 | /* xgettext:c-format */ |
871b3ab2 | 895 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 896 | s->owner, elfsec, s); |
25bbc984 L |
897 | result = FALSE; |
898 | } | |
899 | ||
91d6fa6a | 900 | elf_linked_to_section (s) = linksec; |
dd863624 L |
901 | } |
902 | } | |
53720c49 AM |
903 | else if (this_hdr->sh_type == SHT_GROUP |
904 | && elf_next_in_group (s) == NULL) | |
905 | { | |
4eca0228 | 906 | _bfd_error_handler |
695344c0 | 907 | /* xgettext:c-format */ |
871b3ab2 | 908 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
909 | abfd, elf_section_data (s)->this_idx); |
910 | result = FALSE; | |
911 | } | |
dd863624 | 912 | } |
3d7f7666 | 913 | |
dd863624 | 914 | /* Process section groups. */ |
3d7f7666 L |
915 | if (num_group == (unsigned) -1) |
916 | return result; | |
917 | ||
918 | for (i = 0; i < num_group; i++) | |
919 | { | |
920 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
921 | Elf_Internal_Group *idx; |
922 | unsigned int n_elt; | |
3d7f7666 | 923 | |
4b0e8a5f NC |
924 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
925 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
926 | { | |
4eca0228 | 927 | _bfd_error_handler |
695344c0 | 928 | /* xgettext:c-format */ |
871b3ab2 | 929 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
930 | abfd, i); |
931 | result = FALSE; | |
932 | continue; | |
933 | } | |
934 | ||
935 | idx = (Elf_Internal_Group *) shdr->contents; | |
936 | n_elt = shdr->sh_size / 4; | |
1b786873 | 937 | |
3d7f7666 | 938 | while (--n_elt != 0) |
24d3e51b NC |
939 | { |
940 | ++ idx; | |
941 | ||
942 | if (idx->shdr == NULL) | |
943 | continue; | |
944 | else if (idx->shdr->bfd_section) | |
945 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
946 | else if (idx->shdr->sh_type != SHT_RELA |
947 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
948 | { |
949 | /* There are some unknown sections in the group. */ | |
950 | _bfd_error_handler | |
951 | /* xgettext:c-format */ | |
871b3ab2 | 952 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
953 | abfd, |
954 | idx->shdr->sh_type, | |
955 | bfd_elf_string_from_elf_section (abfd, | |
956 | (elf_elfheader (abfd) | |
957 | ->e_shstrndx), | |
958 | idx->shdr->sh_name), | |
959 | shdr->bfd_section); | |
960 | result = FALSE; | |
961 | } | |
962 | } | |
3d7f7666 | 963 | } |
24d3e51b | 964 | |
3d7f7666 L |
965 | return result; |
966 | } | |
967 | ||
72adc230 AM |
968 | bfd_boolean |
969 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
970 | { | |
971 | return elf_next_in_group (sec) != NULL; | |
972 | } | |
973 | ||
cb7f4b29 AM |
974 | const char * |
975 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
976 | { | |
977 | if (elf_sec_group (sec) != NULL) | |
978 | return elf_group_name (sec); | |
979 | return NULL; | |
980 | } | |
981 | ||
f6fe1ccd L |
982 | static char * |
983 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
984 | { | |
985 | unsigned int len = strlen (name); | |
986 | char *new_name = bfd_alloc (abfd, len + 2); | |
987 | if (new_name == NULL) | |
988 | return NULL; | |
989 | new_name[0] = '.'; | |
990 | new_name[1] = 'z'; | |
991 | memcpy (new_name + 2, name + 1, len); | |
992 | return new_name; | |
993 | } | |
994 | ||
995 | static char * | |
996 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
997 | { | |
998 | unsigned int len = strlen (name); | |
999 | char *new_name = bfd_alloc (abfd, len); | |
1000 | if (new_name == NULL) | |
1001 | return NULL; | |
1002 | new_name[0] = '.'; | |
1003 | memcpy (new_name + 1, name + 2, len - 1); | |
1004 | return new_name; | |
1005 | } | |
1006 | ||
cc5277b1 ML |
1007 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
1008 | ||
1009 | struct lto_section | |
1010 | { | |
1011 | int16_t major_version; | |
1012 | int16_t minor_version; | |
1013 | unsigned char slim_object; | |
1014 | ||
1015 | /* Flags is a private field that is not defined publicly. */ | |
1016 | uint16_t flags; | |
1017 | }; | |
1018 | ||
252b5132 RH |
1019 | /* Make a BFD section from an ELF section. We store a pointer to the |
1020 | BFD section in the bfd_section field of the header. */ | |
1021 | ||
b34976b6 | 1022 | bfd_boolean |
217aa764 AM |
1023 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1024 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1025 | const char *name, |
1026 | int shindex) | |
252b5132 RH |
1027 | { |
1028 | asection *newsect; | |
1029 | flagword flags; | |
9c5bfbb7 | 1030 | const struct elf_backend_data *bed; |
252b5132 RH |
1031 | |
1032 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1033 | return TRUE; |
252b5132 RH |
1034 | |
1035 | newsect = bfd_make_section_anyway (abfd, name); | |
1036 | if (newsect == NULL) | |
b34976b6 | 1037 | return FALSE; |
252b5132 | 1038 | |
1829f4b2 AM |
1039 | hdr->bfd_section = newsect; |
1040 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1041 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1042 | |
2f89ff8d L |
1043 | /* Always use the real type/flags. */ |
1044 | elf_section_type (newsect) = hdr->sh_type; | |
1045 | elf_section_flags (newsect) = hdr->sh_flags; | |
1046 | ||
252b5132 RH |
1047 | newsect->filepos = hdr->sh_offset; |
1048 | ||
fd361982 AM |
1049 | if (!bfd_set_section_vma (newsect, hdr->sh_addr) |
1050 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1051 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign))) | |
b34976b6 | 1052 | return FALSE; |
252b5132 RH |
1053 | |
1054 | flags = SEC_NO_FLAGS; | |
1055 | if (hdr->sh_type != SHT_NOBITS) | |
1056 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1057 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1058 | flags |= SEC_GROUP; |
252b5132 RH |
1059 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1060 | { | |
1061 | flags |= SEC_ALLOC; | |
1062 | if (hdr->sh_type != SHT_NOBITS) | |
1063 | flags |= SEC_LOAD; | |
1064 | } | |
1065 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1066 | flags |= SEC_READONLY; | |
1067 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1068 | flags |= SEC_CODE; | |
1069 | else if ((flags & SEC_LOAD) != 0) | |
1070 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1071 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1072 | { | |
1073 | flags |= SEC_MERGE; | |
1074 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1075 | } |
84865015 NC |
1076 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1077 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1078 | if (hdr->sh_flags & SHF_GROUP) |
1079 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1080 | return FALSE; |
13ae64f3 JJ |
1081 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1082 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1083 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1084 | flags |= SEC_EXCLUDE; | |
252b5132 | 1085 | |
df3a023b AM |
1086 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1087 | { | |
1088 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1089 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1090 | byte. */ | |
1091 | case ELFOSABI_NONE: | |
1092 | case ELFOSABI_GNU: | |
1093 | case ELFOSABI_FREEBSD: | |
1094 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) | |
1095 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1096 | break; | |
1097 | } | |
1098 | ||
3d2b39cf | 1099 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1100 | { |
3d2b39cf L |
1101 | /* The debugging sections appear to be recognized only by name, |
1102 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1103 | if (name [0] == '.') |
1104 | { | |
f073ced3 AM |
1105 | const char *p; |
1106 | int n; | |
1107 | if (name[1] == 'd') | |
1108 | p = ".debug", n = 6; | |
1109 | else if (name[1] == 'g' && name[2] == 'n') | |
1110 | p = ".gnu.linkonce.wi.", n = 17; | |
1111 | else if (name[1] == 'g' && name[2] == 'd') | |
1112 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
1113 | else if (name[1] == 'l') | |
1114 | p = ".line", n = 5; | |
1115 | else if (name[1] == 's') | |
1116 | p = ".stab", n = 5; | |
1117 | else if (name[1] == 'z') | |
1118 | p = ".zdebug", n = 7; | |
1119 | else | |
1120 | p = NULL, n = 0; | |
1121 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
1122 | flags |= SEC_DEBUGGING; |
1123 | } | |
1124 | } | |
252b5132 RH |
1125 | |
1126 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1127 | only link a single copy of the section. This is used to support | |
1128 | g++. g++ will emit each template expansion in its own section. | |
1129 | The symbols will be defined as weak, so that multiple definitions | |
1130 | are permitted. The GNU linker extension is to actually discard | |
1131 | all but one of the sections. */ | |
0112cd26 | 1132 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1133 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1134 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1135 | ||
fa152c49 JW |
1136 | bed = get_elf_backend_data (abfd); |
1137 | if (bed->elf_backend_section_flags) | |
1138 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1139 | return FALSE; |
fa152c49 | 1140 | |
fd361982 | 1141 | if (!bfd_set_section_flags (newsect, flags)) |
b34976b6 | 1142 | return FALSE; |
252b5132 | 1143 | |
718175fa JK |
1144 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1145 | separate debug info files which may have the segments offsets corrupted. | |
1146 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1147 | if (hdr->sh_type == SHT_NOTE) | |
1148 | { | |
baea7ef1 | 1149 | bfd_byte *contents; |
718175fa | 1150 | |
baea7ef1 | 1151 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1152 | return FALSE; |
1153 | ||
276da9b3 L |
1154 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1155 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1156 | free (contents); |
1157 | } | |
1158 | ||
252b5132 RH |
1159 | if ((flags & SEC_ALLOC) != 0) |
1160 | { | |
1161 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1162 | unsigned int i, nload; |
1163 | ||
1164 | /* Some ELF linkers produce binaries with all the program header | |
1165 | p_paddr fields zero. If we have such a binary with more than | |
1166 | one PT_LOAD header, then leave the section lma equal to vma | |
1167 | so that we don't create sections with overlapping lma. */ | |
1168 | phdr = elf_tdata (abfd)->phdr; | |
1169 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1170 | if (phdr->p_paddr != 0) | |
1171 | break; | |
1172 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1173 | ++nload; | |
1174 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1175 | return TRUE; | |
252b5132 | 1176 | |
252b5132 RH |
1177 | phdr = elf_tdata (abfd)->phdr; |
1178 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1179 | { | |
86b2281f AM |
1180 | if (((phdr->p_type == PT_LOAD |
1181 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1182 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1183 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1184 | { |
88967714 AM |
1185 | if ((flags & SEC_LOAD) == 0) |
1186 | newsect->lma = (phdr->p_paddr | |
1187 | + hdr->sh_addr - phdr->p_vaddr); | |
1188 | else | |
1189 | /* We used to use the same adjustment for SEC_LOAD | |
1190 | sections, but that doesn't work if the segment | |
1191 | is packed with code from multiple VMAs. | |
1192 | Instead we calculate the section LMA based on | |
1193 | the segment LMA. It is assumed that the | |
1194 | segment will contain sections with contiguous | |
1195 | LMAs, even if the VMAs are not. */ | |
1196 | newsect->lma = (phdr->p_paddr | |
1197 | + hdr->sh_offset - phdr->p_offset); | |
1198 | ||
1199 | /* With contiguous segments, we can't tell from file | |
1200 | offsets whether a section with zero size should | |
1201 | be placed at the end of one segment or the | |
1202 | beginning of the next. Decide based on vaddr. */ | |
1203 | if (hdr->sh_addr >= phdr->p_vaddr | |
1204 | && (hdr->sh_addr + hdr->sh_size | |
1205 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1206 | break; | |
252b5132 RH |
1207 | } |
1208 | } | |
1209 | } | |
1210 | ||
4a114e3e L |
1211 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1212 | .zdebug_*, after the section flags is set. */ | |
1213 | if ((flags & SEC_DEBUGGING) | |
1214 | && ((name[1] == 'd' && name[6] == '_') | |
1215 | || (name[1] == 'z' && name[7] == '_'))) | |
1216 | { | |
1217 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1218 | int compression_header_size; |
dab394de | 1219 | bfd_size_type uncompressed_size; |
4207142d | 1220 | unsigned int uncompressed_align_power; |
151411f8 L |
1221 | bfd_boolean compressed |
1222 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1223 | &compression_header_size, |
4207142d MW |
1224 | &uncompressed_size, |
1225 | &uncompressed_align_power); | |
151411f8 | 1226 | if (compressed) |
4a114e3e L |
1227 | { |
1228 | /* Compressed section. Check if we should decompress. */ | |
1229 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1230 | action = decompress; | |
1231 | } | |
151411f8 L |
1232 | |
1233 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1234 | section. Check if we should compress. */ | |
1235 | if (action == nothing) | |
4a114e3e | 1236 | { |
151411f8 L |
1237 | if (newsect->size != 0 |
1238 | && (abfd->flags & BFD_COMPRESS) | |
1239 | && compression_header_size >= 0 | |
dab394de | 1240 | && uncompressed_size > 0 |
151411f8 L |
1241 | && (!compressed |
1242 | || ((compression_header_size > 0) | |
1243 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1244 | action = compress; |
151411f8 L |
1245 | else |
1246 | return TRUE; | |
4a114e3e L |
1247 | } |
1248 | ||
151411f8 | 1249 | if (action == compress) |
4a114e3e | 1250 | { |
4a114e3e L |
1251 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1252 | { | |
4eca0228 | 1253 | _bfd_error_handler |
695344c0 | 1254 | /* xgettext:c-format */ |
871b3ab2 | 1255 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1256 | abfd, name); |
1257 | return FALSE; | |
1258 | } | |
151411f8 L |
1259 | } |
1260 | else | |
1261 | { | |
4a114e3e L |
1262 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1263 | { | |
4eca0228 | 1264 | _bfd_error_handler |
695344c0 | 1265 | /* xgettext:c-format */ |
871b3ab2 | 1266 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1267 | abfd, name); |
1268 | return FALSE; | |
1269 | } | |
151411f8 L |
1270 | } |
1271 | ||
f6fe1ccd | 1272 | if (abfd->is_linker_input) |
151411f8 | 1273 | { |
f6fe1ccd L |
1274 | if (name[1] == 'z' |
1275 | && (action == decompress | |
1276 | || (action == compress | |
1277 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1278 | { |
f6fe1ccd L |
1279 | /* Convert section name from .zdebug_* to .debug_* so |
1280 | that linker will consider this section as a debug | |
1281 | section. */ | |
1282 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1283 | if (new_name == NULL) |
1284 | return FALSE; | |
fd361982 | 1285 | bfd_rename_section (newsect, new_name); |
151411f8 | 1286 | } |
4a114e3e | 1287 | } |
f6fe1ccd L |
1288 | else |
1289 | /* For objdump, don't rename the section. For objcopy, delay | |
1290 | section rename to elf_fake_sections. */ | |
1291 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1292 | } |
1293 | ||
cc5277b1 ML |
1294 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1295 | section. */ | |
1296 | const char *lto_section_name = ".gnu.lto_.lto."; | |
1297 | if (strncmp (name, lto_section_name, strlen (lto_section_name)) == 0) | |
1298 | { | |
1299 | struct lto_section lsection; | |
1300 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1301 | sizeof (struct lto_section))) | |
1302 | abfd->lto_slim_object = lsection.slim_object; | |
1303 | } | |
1304 | ||
b34976b6 | 1305 | return TRUE; |
252b5132 RH |
1306 | } |
1307 | ||
84865015 NC |
1308 | const char *const bfd_elf_section_type_names[] = |
1309 | { | |
252b5132 RH |
1310 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1311 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1312 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1313 | }; | |
1314 | ||
1049f94e | 1315 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1316 | output, and the reloc is against an external symbol, and nothing |
1317 | has given us any additional addend, the resulting reloc will also | |
1318 | be against the same symbol. In such a case, we don't want to | |
1319 | change anything about the way the reloc is handled, since it will | |
1320 | all be done at final link time. Rather than put special case code | |
1321 | into bfd_perform_relocation, all the reloc types use this howto | |
1322 | function. It just short circuits the reloc if producing | |
1049f94e | 1323 | relocatable output against an external symbol. */ |
252b5132 | 1324 | |
252b5132 | 1325 | bfd_reloc_status_type |
217aa764 AM |
1326 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1327 | arelent *reloc_entry, | |
1328 | asymbol *symbol, | |
1329 | void *data ATTRIBUTE_UNUSED, | |
1330 | asection *input_section, | |
1331 | bfd *output_bfd, | |
1332 | char **error_message ATTRIBUTE_UNUSED) | |
1333 | { | |
1334 | if (output_bfd != NULL | |
252b5132 RH |
1335 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1336 | && (! reloc_entry->howto->partial_inplace | |
1337 | || reloc_entry->addend == 0)) | |
1338 | { | |
1339 | reloc_entry->address += input_section->output_offset; | |
1340 | return bfd_reloc_ok; | |
1341 | } | |
1342 | ||
1343 | return bfd_reloc_continue; | |
1344 | } | |
1345 | \f | |
84865015 NC |
1346 | /* Returns TRUE if section A matches section B. |
1347 | Names, addresses and links may be different, but everything else | |
1348 | should be the same. */ | |
1349 | ||
1350 | static bfd_boolean | |
5522f910 NC |
1351 | section_match (const Elf_Internal_Shdr * a, |
1352 | const Elf_Internal_Shdr * b) | |
84865015 | 1353 | { |
ac85e67c AM |
1354 | if (a->sh_type != b->sh_type |
1355 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1356 | || a->sh_addralign != b->sh_addralign | |
1357 | || a->sh_entsize != b->sh_entsize) | |
1358 | return FALSE; | |
1359 | if (a->sh_type == SHT_SYMTAB | |
1360 | || a->sh_type == SHT_STRTAB) | |
1361 | return TRUE; | |
1362 | return a->sh_size == b->sh_size; | |
84865015 NC |
1363 | } |
1364 | ||
1365 | /* Find a section in OBFD that has the same characteristics | |
1366 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1367 | none can be found. Check's section HINT first, as this is likely | |
1368 | to be the correct section. */ | |
1369 | ||
1370 | static unsigned int | |
5cc4ca83 ST |
1371 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1372 | const unsigned int hint) | |
84865015 NC |
1373 | { |
1374 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1375 | unsigned int i; | |
1376 | ||
a55c9876 NC |
1377 | BFD_ASSERT (iheader != NULL); |
1378 | ||
1379 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1380 | if (hint < elf_numsections (obfd) |
1381 | && oheaders[hint] != NULL | |
a55c9876 | 1382 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1383 | return hint; |
1384 | ||
1385 | for (i = 1; i < elf_numsections (obfd); i++) | |
1386 | { | |
1387 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1388 | ||
a55c9876 NC |
1389 | if (oheader == NULL) |
1390 | continue; | |
84865015 NC |
1391 | if (section_match (oheader, iheader)) |
1392 | /* FIXME: Do we care if there is a potential for | |
1393 | multiple matches ? */ | |
1394 | return i; | |
1395 | } | |
1396 | ||
1397 | return SHN_UNDEF; | |
1398 | } | |
1399 | ||
5522f910 NC |
1400 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1401 | Processor specific section, based upon a matching input section. | |
1402 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1403 | |
5522f910 NC |
1404 | static bfd_boolean |
1405 | copy_special_section_fields (const bfd *ibfd, | |
1406 | bfd *obfd, | |
1407 | const Elf_Internal_Shdr *iheader, | |
1408 | Elf_Internal_Shdr *oheader, | |
1409 | const unsigned int secnum) | |
1410 | { | |
1411 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1412 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1413 | bfd_boolean changed = FALSE; | |
1414 | unsigned int sh_link; | |
1415 | ||
1416 | if (oheader->sh_type == SHT_NOBITS) | |
1417 | { | |
1418 | /* This is a feature for objcopy --only-keep-debug: | |
1419 | When a section's type is changed to NOBITS, we preserve | |
1420 | the sh_link and sh_info fields so that they can be | |
1421 | matched up with the original. | |
1422 | ||
1423 | Note: Strictly speaking these assignments are wrong. | |
1424 | The sh_link and sh_info fields should point to the | |
1425 | relevent sections in the output BFD, which may not be in | |
1426 | the same location as they were in the input BFD. But | |
1427 | the whole point of this action is to preserve the | |
1428 | original values of the sh_link and sh_info fields, so | |
1429 | that they can be matched up with the section headers in | |
1430 | the original file. So strictly speaking we may be | |
1431 | creating an invalid ELF file, but it is only for a file | |
1432 | that just contains debug info and only for sections | |
1433 | without any contents. */ | |
1434 | if (oheader->sh_link == 0) | |
1435 | oheader->sh_link = iheader->sh_link; | |
1436 | if (oheader->sh_info == 0) | |
1437 | oheader->sh_info = iheader->sh_info; | |
1438 | return TRUE; | |
1439 | } | |
1440 | ||
1441 | /* Allow the target a chance to decide how these fields should be set. */ | |
1442 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1443 | && bed->elf_backend_copy_special_section_fields | |
1444 | (ibfd, obfd, iheader, oheader)) | |
1445 | return TRUE; | |
1446 | ||
1447 | /* We have an iheader which might match oheader, and which has non-zero | |
1448 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1449 | the section in the output bfd which corresponds to the linked section | |
1450 | in the input bfd. */ | |
1451 | if (iheader->sh_link != SHN_UNDEF) | |
1452 | { | |
4f3ca05b NC |
1453 | /* See PR 20931 for a reproducer. */ |
1454 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1455 | { | |
76cfced5 | 1456 | _bfd_error_handler |
4f3ca05b | 1457 | /* xgettext:c-format */ |
9793eb77 | 1458 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1459 | ibfd, iheader->sh_link, secnum); |
1460 | return FALSE; | |
1461 | } | |
1462 | ||
5522f910 NC |
1463 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1464 | if (sh_link != SHN_UNDEF) | |
1465 | { | |
1466 | oheader->sh_link = sh_link; | |
1467 | changed = TRUE; | |
1468 | } | |
1469 | else | |
1470 | /* FIXME: Should we install iheader->sh_link | |
1471 | if we could not find a match ? */ | |
76cfced5 | 1472 | _bfd_error_handler |
695344c0 | 1473 | /* xgettext:c-format */ |
9793eb77 | 1474 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1475 | } |
1476 | ||
1477 | if (iheader->sh_info) | |
1478 | { | |
1479 | /* The sh_info field can hold arbitrary information, but if the | |
1480 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1481 | section index. */ | |
1482 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1483 | { | |
1484 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1485 | iheader->sh_info); | |
1486 | if (sh_link != SHN_UNDEF) | |
1487 | oheader->sh_flags |= SHF_INFO_LINK; | |
1488 | } | |
1489 | else | |
1490 | /* No idea what it means - just copy it. */ | |
1491 | sh_link = iheader->sh_info; | |
1492 | ||
1493 | if (sh_link != SHN_UNDEF) | |
1494 | { | |
1495 | oheader->sh_info = sh_link; | |
1496 | changed = TRUE; | |
1497 | } | |
1498 | else | |
76cfced5 | 1499 | _bfd_error_handler |
695344c0 | 1500 | /* xgettext:c-format */ |
9793eb77 | 1501 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1502 | } |
1503 | ||
1504 | return changed; | |
1505 | } | |
07d6d2b8 | 1506 | |
0ac4564e L |
1507 | /* Copy the program header and other data from one object module to |
1508 | another. */ | |
252b5132 | 1509 | |
b34976b6 | 1510 | bfd_boolean |
217aa764 | 1511 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1512 | { |
5522f910 NC |
1513 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1514 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1515 | const struct elf_backend_data *bed; | |
84865015 NC |
1516 | unsigned int i; |
1517 | ||
2d502050 | 1518 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1519 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1520 | return TRUE; |
2d502050 | 1521 | |
57b828ef L |
1522 | if (!elf_flags_init (obfd)) |
1523 | { | |
1524 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1525 | elf_flags_init (obfd) = TRUE; | |
1526 | } | |
2d502050 | 1527 | |
0ac4564e | 1528 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1529 | |
1530 | /* Also copy the EI_OSABI field. */ | |
1531 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1532 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1533 | |
5522f910 NC |
1534 | /* If set, copy the EI_ABIVERSION field. */ |
1535 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1536 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1537 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1538 | |
104d59d1 JM |
1539 | /* Copy object attributes. */ |
1540 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1541 | |
84865015 NC |
1542 | if (iheaders == NULL || oheaders == NULL) |
1543 | return TRUE; | |
63b9bbb7 | 1544 | |
5522f910 NC |
1545 | bed = get_elf_backend_data (obfd); |
1546 | ||
1547 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1548 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1549 | { |
84865015 NC |
1550 | unsigned int j; |
1551 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1552 | |
5522f910 NC |
1553 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1554 | because of a special case need for generating separate debug info | |
1555 | files. See below for more details. */ | |
84865015 NC |
1556 | if (oheader == NULL |
1557 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1558 | && oheader->sh_type < SHT_LOOS)) |
1559 | continue; | |
1560 | ||
1561 | /* Ignore empty sections, and sections whose | |
1562 | fields have already been initialised. */ | |
1563 | if (oheader->sh_size == 0 | |
84865015 NC |
1564 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1565 | continue; | |
63b9bbb7 | 1566 | |
84865015 | 1567 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1568 | First we try for a direct mapping between the input and output sections. */ |
1569 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1570 | { | |
1571 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1572 | ||
1573 | if (iheader == NULL) | |
1574 | continue; | |
1575 | ||
1576 | if (oheader->bfd_section != NULL | |
1577 | && iheader->bfd_section != NULL | |
1578 | && iheader->bfd_section->output_section != NULL | |
1579 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1580 | { | |
1581 | /* We have found a connection from the input section to the | |
1582 | output section. Attempt to copy the header fields. If | |
1583 | this fails then do not try any further sections - there | |
1584 | should only be a one-to-one mapping between input and output. */ | |
1585 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1586 | j = elf_numsections (ibfd); | |
1587 | break; | |
1588 | } | |
1589 | } | |
1590 | ||
1591 | if (j < elf_numsections (ibfd)) | |
1592 | continue; | |
1593 | ||
1594 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1595 | Unfortunately we cannot compare names as the output string table |
1596 | is empty, so instead we check size, address and type. */ | |
1597 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1598 | { | |
5522f910 | 1599 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1600 | |
5522f910 NC |
1601 | if (iheader == NULL) |
1602 | continue; | |
1603 | ||
1604 | /* Try matching fields in the input section's header. | |
1605 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1606 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1607 | input type. */ | |
1608 | if ((oheader->sh_type == SHT_NOBITS | |
1609 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1610 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1611 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1612 | && iheader->sh_addralign == oheader->sh_addralign |
1613 | && iheader->sh_entsize == oheader->sh_entsize | |
1614 | && iheader->sh_size == oheader->sh_size | |
1615 | && iheader->sh_addr == oheader->sh_addr | |
1616 | && (iheader->sh_info != oheader->sh_info | |
1617 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1618 | { |
5522f910 NC |
1619 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1620 | break; | |
63b9bbb7 NC |
1621 | } |
1622 | } | |
5522f910 NC |
1623 | |
1624 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1625 | { | |
1626 | /* Final attempt. Call the backend copy function | |
1627 | with a NULL input section. */ | |
1628 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1629 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1630 | } | |
63b9bbb7 NC |
1631 | } |
1632 | ||
b34976b6 | 1633 | return TRUE; |
2d502050 L |
1634 | } |
1635 | ||
cedc298e L |
1636 | static const char * |
1637 | get_segment_type (unsigned int p_type) | |
1638 | { | |
1639 | const char *pt; | |
1640 | switch (p_type) | |
1641 | { | |
1642 | case PT_NULL: pt = "NULL"; break; | |
1643 | case PT_LOAD: pt = "LOAD"; break; | |
1644 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1645 | case PT_INTERP: pt = "INTERP"; break; | |
1646 | case PT_NOTE: pt = "NOTE"; break; | |
1647 | case PT_SHLIB: pt = "SHLIB"; break; | |
1648 | case PT_PHDR: pt = "PHDR"; break; | |
1649 | case PT_TLS: pt = "TLS"; break; | |
1650 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1651 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1652 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1653 | default: pt = NULL; break; | |
1654 | } | |
1655 | return pt; | |
1656 | } | |
1657 | ||
f0b79d91 L |
1658 | /* Print out the program headers. */ |
1659 | ||
b34976b6 | 1660 | bfd_boolean |
217aa764 | 1661 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1662 | { |
a50b1753 | 1663 | FILE *f = (FILE *) farg; |
252b5132 RH |
1664 | Elf_Internal_Phdr *p; |
1665 | asection *s; | |
1666 | bfd_byte *dynbuf = NULL; | |
1667 | ||
1668 | p = elf_tdata (abfd)->phdr; | |
1669 | if (p != NULL) | |
1670 | { | |
1671 | unsigned int i, c; | |
1672 | ||
1673 | fprintf (f, _("\nProgram Header:\n")); | |
1674 | c = elf_elfheader (abfd)->e_phnum; | |
1675 | for (i = 0; i < c; i++, p++) | |
1676 | { | |
cedc298e | 1677 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1678 | char buf[20]; |
1679 | ||
cedc298e | 1680 | if (pt == NULL) |
252b5132 | 1681 | { |
cedc298e L |
1682 | sprintf (buf, "0x%lx", p->p_type); |
1683 | pt = buf; | |
252b5132 | 1684 | } |
dc810e39 | 1685 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1686 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1687 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1688 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1689 | fprintf (f, " paddr 0x"); |
60b89a18 | 1690 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1691 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1692 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1693 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1694 | fprintf (f, " memsz 0x"); |
60b89a18 | 1695 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1696 | fprintf (f, " flags %c%c%c", |
1697 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1698 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1699 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1700 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1701 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1702 | fprintf (f, "\n"); |
1703 | } | |
1704 | } | |
1705 | ||
1706 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1707 | if (s != NULL) | |
1708 | { | |
cb33740c | 1709 | unsigned int elfsec; |
dc810e39 | 1710 | unsigned long shlink; |
252b5132 RH |
1711 | bfd_byte *extdyn, *extdynend; |
1712 | size_t extdynsize; | |
217aa764 | 1713 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1714 | |
1715 | fprintf (f, _("\nDynamic Section:\n")); | |
1716 | ||
eea6121a | 1717 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1718 | goto error_return; |
1719 | ||
1720 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1721 | if (elfsec == SHN_BAD) |
252b5132 | 1722 | goto error_return; |
dc810e39 | 1723 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1724 | |
1725 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1726 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1727 | ||
1728 | extdyn = dynbuf; | |
06614111 NC |
1729 | /* PR 17512: file: 6f427532. */ |
1730 | if (s->size < extdynsize) | |
1731 | goto error_return; | |
eea6121a | 1732 | extdynend = extdyn + s->size; |
1036838a | 1733 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1734 | Fix range check. */ |
1036838a | 1735 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1736 | { |
1737 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1738 | const char *name = ""; |
252b5132 | 1739 | char ab[20]; |
b34976b6 | 1740 | bfd_boolean stringp; |
ad9563d6 | 1741 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1742 | |
217aa764 | 1743 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1744 | |
1745 | if (dyn.d_tag == DT_NULL) | |
1746 | break; | |
1747 | ||
b34976b6 | 1748 | stringp = FALSE; |
252b5132 RH |
1749 | switch (dyn.d_tag) |
1750 | { | |
1751 | default: | |
ad9563d6 CM |
1752 | if (bed->elf_backend_get_target_dtag) |
1753 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1754 | ||
1755 | if (!strcmp (name, "")) | |
1756 | { | |
cd9af601 | 1757 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1758 | name = ab; |
1759 | } | |
252b5132 RH |
1760 | break; |
1761 | ||
b34976b6 | 1762 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1763 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1764 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1765 | case DT_HASH: name = "HASH"; break; | |
1766 | case DT_STRTAB: name = "STRTAB"; break; | |
1767 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1768 | case DT_RELA: name = "RELA"; break; | |
1769 | case DT_RELASZ: name = "RELASZ"; break; | |
1770 | case DT_RELAENT: name = "RELAENT"; break; | |
1771 | case DT_STRSZ: name = "STRSZ"; break; | |
1772 | case DT_SYMENT: name = "SYMENT"; break; | |
1773 | case DT_INIT: name = "INIT"; break; | |
1774 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1775 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1776 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1777 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1778 | case DT_REL: name = "REL"; break; | |
1779 | case DT_RELSZ: name = "RELSZ"; break; | |
1780 | case DT_RELENT: name = "RELENT"; break; | |
1781 | case DT_PLTREL: name = "PLTREL"; break; | |
1782 | case DT_DEBUG: name = "DEBUG"; break; | |
1783 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1784 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1785 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1786 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1787 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1788 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1789 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1790 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1791 | case DT_FLAGS: name = "FLAGS"; break; |
1792 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1793 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1794 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1795 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1796 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1797 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1798 | case DT_FEATURE: name = "FEATURE"; break; | |
1799 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1800 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1801 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1802 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1803 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1804 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1805 | case DT_PLTPAD: name = "PLTPAD"; break; |
1806 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1807 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1808 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1809 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1810 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1811 | case DT_VERSYM: name = "VERSYM"; break; |
1812 | case DT_VERDEF: name = "VERDEF"; break; | |
1813 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1814 | case DT_VERNEED: name = "VERNEED"; break; | |
1815 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1816 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1817 | case DT_USED: name = "USED"; break; |
b34976b6 | 1818 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1819 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1820 | } |
1821 | ||
ad9563d6 | 1822 | fprintf (f, " %-20s ", name); |
252b5132 | 1823 | if (! stringp) |
a1f3c56e AN |
1824 | { |
1825 | fprintf (f, "0x"); | |
1826 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1827 | } | |
252b5132 RH |
1828 | else |
1829 | { | |
1830 | const char *string; | |
dc810e39 | 1831 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1832 | |
dc810e39 | 1833 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1834 | if (string == NULL) |
1835 | goto error_return; | |
1836 | fprintf (f, "%s", string); | |
1837 | } | |
1838 | fprintf (f, "\n"); | |
1839 | } | |
1840 | ||
1841 | free (dynbuf); | |
1842 | dynbuf = NULL; | |
1843 | } | |
1844 | ||
1845 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1846 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1847 | { | |
fc0e6df6 | 1848 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1849 | return FALSE; |
252b5132 RH |
1850 | } |
1851 | ||
1852 | if (elf_dynverdef (abfd) != 0) | |
1853 | { | |
1854 | Elf_Internal_Verdef *t; | |
1855 | ||
1856 | fprintf (f, _("\nVersion definitions:\n")); | |
1857 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1858 | { | |
1859 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1860 | t->vd_flags, t->vd_hash, |
1861 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1862 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1863 | { |
1864 | Elf_Internal_Verdaux *a; | |
1865 | ||
1866 | fprintf (f, "\t"); | |
1867 | for (a = t->vd_auxptr->vda_nextptr; | |
1868 | a != NULL; | |
1869 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1870 | fprintf (f, "%s ", |
1871 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1872 | fprintf (f, "\n"); |
1873 | } | |
1874 | } | |
1875 | } | |
1876 | ||
1877 | if (elf_dynverref (abfd) != 0) | |
1878 | { | |
1879 | Elf_Internal_Verneed *t; | |
1880 | ||
1881 | fprintf (f, _("\nVersion References:\n")); | |
1882 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1883 | { | |
1884 | Elf_Internal_Vernaux *a; | |
1885 | ||
d0fb9a8d JJ |
1886 | fprintf (f, _(" required from %s:\n"), |
1887 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1888 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1889 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1890 | a->vna_flags, a->vna_other, |
1891 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1892 | } |
1893 | } | |
1894 | ||
b34976b6 | 1895 | return TRUE; |
252b5132 RH |
1896 | |
1897 | error_return: | |
1898 | if (dynbuf != NULL) | |
1899 | free (dynbuf); | |
b34976b6 | 1900 | return FALSE; |
252b5132 RH |
1901 | } |
1902 | ||
bb4d2ac2 L |
1903 | /* Get version string. */ |
1904 | ||
1905 | const char * | |
60bb06bc L |
1906 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1907 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1908 | { |
1909 | const char *version_string = NULL; | |
1910 | if (elf_dynversym (abfd) != 0 | |
1911 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1912 | { | |
1913 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1914 | ||
1915 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1916 | vernum &= VERSYM_VERSION; | |
1917 | ||
1918 | if (vernum == 0) | |
1919 | version_string = ""; | |
1f6f5dba L |
1920 | else if (vernum == 1 |
1921 | && (vernum > elf_tdata (abfd)->cverdefs | |
1922 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1923 | == VER_FLG_BASE))) | |
bb4d2ac2 L |
1924 | version_string = "Base"; |
1925 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1926 | version_string = | |
1927 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1928 | else | |
1929 | { | |
1930 | Elf_Internal_Verneed *t; | |
1931 | ||
7a815dd5 | 1932 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1933 | for (t = elf_tdata (abfd)->verref; |
1934 | t != NULL; | |
1935 | t = t->vn_nextref) | |
1936 | { | |
1937 | Elf_Internal_Vernaux *a; | |
1938 | ||
1939 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1940 | { | |
1941 | if (a->vna_other == vernum) | |
1942 | { | |
1943 | version_string = a->vna_nodename; | |
1944 | break; | |
1945 | } | |
1946 | } | |
1947 | } | |
1948 | } | |
1949 | } | |
1950 | return version_string; | |
1951 | } | |
1952 | ||
252b5132 RH |
1953 | /* Display ELF-specific fields of a symbol. */ |
1954 | ||
1955 | void | |
217aa764 AM |
1956 | bfd_elf_print_symbol (bfd *abfd, |
1957 | void *filep, | |
1958 | asymbol *symbol, | |
1959 | bfd_print_symbol_type how) | |
252b5132 | 1960 | { |
a50b1753 | 1961 | FILE *file = (FILE *) filep; |
252b5132 RH |
1962 | switch (how) |
1963 | { | |
1964 | case bfd_print_symbol_name: | |
1965 | fprintf (file, "%s", symbol->name); | |
1966 | break; | |
1967 | case bfd_print_symbol_more: | |
1968 | fprintf (file, "elf "); | |
60b89a18 | 1969 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1970 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1971 | break; |
1972 | case bfd_print_symbol_all: | |
1973 | { | |
4e8a9624 AM |
1974 | const char *section_name; |
1975 | const char *name = NULL; | |
9c5bfbb7 | 1976 | const struct elf_backend_data *bed; |
7a13edea | 1977 | unsigned char st_other; |
dbb410c3 | 1978 | bfd_vma val; |
bb4d2ac2 L |
1979 | const char *version_string; |
1980 | bfd_boolean hidden; | |
c044fabd | 1981 | |
252b5132 | 1982 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1983 | |
1984 | bed = get_elf_backend_data (abfd); | |
1985 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1986 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1987 | |
1988 | if (name == NULL) | |
1989 | { | |
7ee38065 | 1990 | name = symbol->name; |
217aa764 | 1991 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1992 | } |
1993 | ||
252b5132 RH |
1994 | fprintf (file, " %s\t", section_name); |
1995 | /* Print the "other" value for a symbol. For common symbols, | |
1996 | we've already printed the size; now print the alignment. | |
1997 | For other symbols, we have no specified alignment, and | |
1998 | we've printed the address; now print the size. */ | |
dcf6c779 | 1999 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
2000 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
2001 | else | |
2002 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
2003 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
2004 | |
2005 | /* If we have version information, print it. */ | |
60bb06bc L |
2006 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2007 | symbol, | |
2008 | &hidden); | |
bb4d2ac2 | 2009 | if (version_string) |
252b5132 | 2010 | { |
bb4d2ac2 | 2011 | if (!hidden) |
252b5132 RH |
2012 | fprintf (file, " %-11s", version_string); |
2013 | else | |
2014 | { | |
2015 | int i; | |
2016 | ||
2017 | fprintf (file, " (%s)", version_string); | |
2018 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2019 | putc (' ', file); | |
2020 | } | |
2021 | } | |
2022 | ||
2023 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2024 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2025 | |
7a13edea NC |
2026 | switch (st_other) |
2027 | { | |
2028 | case 0: break; | |
2029 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2030 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2031 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2032 | default: | |
2033 | /* Some other non-defined flags are also present, so print | |
2034 | everything hex. */ | |
2035 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2036 | } | |
252b5132 | 2037 | |
587ff49e | 2038 | fprintf (file, " %s", name); |
252b5132 RH |
2039 | } |
2040 | break; | |
2041 | } | |
2042 | } | |
252b5132 RH |
2043 | \f |
2044 | /* ELF .o/exec file reading */ | |
2045 | ||
c044fabd | 2046 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2047 | |
b34976b6 | 2048 | bfd_boolean |
217aa764 | 2049 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2050 | { |
4fbb74a6 AM |
2051 | Elf_Internal_Shdr *hdr; |
2052 | Elf_Internal_Ehdr *ehdr; | |
2053 | const struct elf_backend_data *bed; | |
90937f86 | 2054 | const char *name; |
bf67003b NC |
2055 | bfd_boolean ret = TRUE; |
2056 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2057 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2058 | static unsigned int nesting = 0; |
252b5132 | 2059 | |
4fbb74a6 AM |
2060 | if (shindex >= elf_numsections (abfd)) |
2061 | return FALSE; | |
2062 | ||
bf67003b NC |
2063 | if (++ nesting > 3) |
2064 | { | |
2065 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2066 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2067 | loop. Detect this here, by refusing to load a section that we are |
2068 | already in the process of loading. We only trigger this test if | |
2069 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2070 | can expect to recurse at least once. |
2071 | ||
2072 | FIXME: It would be better if this array was attached to the bfd, | |
2073 | rather than being held in a static pointer. */ | |
2074 | ||
2075 | if (sections_being_created_abfd != abfd) | |
2076 | sections_being_created = NULL; | |
bf67003b NC |
2077 | if (sections_being_created == NULL) |
2078 | { | |
bf67003b | 2079 | sections_being_created = (bfd_boolean *) |
7a6e0d89 | 2080 | bfd_zalloc2 (abfd, elf_numsections (abfd), sizeof (bfd_boolean)); |
5a4b0ccc | 2081 | sections_being_created_abfd = abfd; |
bf67003b NC |
2082 | } |
2083 | if (sections_being_created [shindex]) | |
2084 | { | |
4eca0228 | 2085 | _bfd_error_handler |
871b3ab2 | 2086 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2087 | return FALSE; |
2088 | } | |
2089 | sections_being_created [shindex] = TRUE; | |
2090 | } | |
2091 | ||
4fbb74a6 AM |
2092 | hdr = elf_elfsections (abfd)[shindex]; |
2093 | ehdr = elf_elfheader (abfd); | |
2094 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2095 | hdr->sh_name); |
933d961a | 2096 | if (name == NULL) |
bf67003b | 2097 | goto fail; |
252b5132 | 2098 | |
4fbb74a6 | 2099 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2100 | switch (hdr->sh_type) |
2101 | { | |
2102 | case SHT_NULL: | |
2103 | /* Inactive section. Throw it away. */ | |
bf67003b | 2104 | goto success; |
252b5132 | 2105 | |
bf67003b NC |
2106 | case SHT_PROGBITS: /* Normal section with contents. */ |
2107 | case SHT_NOBITS: /* .bss section. */ | |
2108 | case SHT_HASH: /* .hash section. */ | |
2109 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2110 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2111 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2112 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2113 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2114 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2115 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2116 | goto success; | |
252b5132 | 2117 | |
797fc050 | 2118 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2119 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2120 | goto fail; |
2121 | ||
cfcac11d NC |
2122 | if (hdr->sh_link > elf_numsections (abfd)) |
2123 | { | |
caa83f8b | 2124 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2125 | field set to SHN_BEFORE or SHN_AFTER. */ |
2126 | switch (bfd_get_arch (abfd)) | |
2127 | { | |
caa83f8b | 2128 | case bfd_arch_i386: |
cfcac11d NC |
2129 | case bfd_arch_sparc: |
2130 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2131 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2132 | break; | |
2133 | /* Otherwise fall through. */ | |
2134 | default: | |
bf67003b | 2135 | goto fail; |
cfcac11d NC |
2136 | } |
2137 | } | |
2138 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2139 | goto fail; |
cfcac11d | 2140 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2141 | { |
2142 | Elf_Internal_Shdr *dynsymhdr; | |
2143 | ||
2144 | /* The shared libraries distributed with hpux11 have a bogus | |
2145 | sh_link field for the ".dynamic" section. Find the | |
2146 | string table for the ".dynsym" section instead. */ | |
2147 | if (elf_dynsymtab (abfd) != 0) | |
2148 | { | |
2149 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2150 | hdr->sh_link = dynsymhdr->sh_link; | |
2151 | } | |
2152 | else | |
2153 | { | |
2154 | unsigned int i, num_sec; | |
2155 | ||
2156 | num_sec = elf_numsections (abfd); | |
2157 | for (i = 1; i < num_sec; i++) | |
2158 | { | |
2159 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2160 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2161 | { | |
2162 | hdr->sh_link = dynsymhdr->sh_link; | |
2163 | break; | |
2164 | } | |
2165 | } | |
2166 | } | |
2167 | } | |
bf67003b | 2168 | goto success; |
797fc050 | 2169 | |
bf67003b | 2170 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2171 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2172 | goto success; |
252b5132 | 2173 | |
a50b2160 | 2174 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2175 | goto fail; |
2176 | ||
3337c1e5 | 2177 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2178 | { |
2179 | if (hdr->sh_size != 0) | |
bf67003b | 2180 | goto fail; |
eee3b786 AM |
2181 | /* Some assemblers erroneously set sh_info to one with a |
2182 | zero sh_size. ld sees this as a global symbol count | |
2183 | of (unsigned) -1. Fix it here. */ | |
2184 | hdr->sh_info = 0; | |
bf67003b | 2185 | goto success; |
eee3b786 | 2186 | } |
bf67003b | 2187 | |
16ad13ec NC |
2188 | /* PR 18854: A binary might contain more than one symbol table. |
2189 | Unusual, but possible. Warn, but continue. */ | |
2190 | if (elf_onesymtab (abfd) != 0) | |
2191 | { | |
4eca0228 | 2192 | _bfd_error_handler |
695344c0 | 2193 | /* xgettext:c-format */ |
871b3ab2 | 2194 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2195 | " - ignoring the table in section %u"), |
16ad13ec NC |
2196 | abfd, shindex); |
2197 | goto success; | |
2198 | } | |
252b5132 | 2199 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2200 | elf_symtab_hdr (abfd) = *hdr; |
2201 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2202 | abfd->flags |= HAS_SYMS; |
2203 | ||
2204 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2205 | SHF_ALLOC is set, and this is a shared object, then we also |
2206 | treat this section as a BFD section. We can not base the | |
2207 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2208 | set in a relocatable object file, which would confuse the | |
2209 | linker. */ | |
252b5132 RH |
2210 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2211 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2212 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2213 | shindex)) | |
bf67003b | 2214 | goto fail; |
252b5132 | 2215 | |
1b3a8575 AM |
2216 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2217 | can't read symbols without that section loaded as well. It | |
2218 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2219 | { |
2220 | elf_section_list * entry; | |
2221 | unsigned int i, num_sec; | |
1b3a8575 | 2222 | |
6a40cf0c NC |
2223 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2224 | if (entry->hdr.sh_link == shindex) | |
2225 | goto success; | |
2226 | ||
2227 | num_sec = elf_numsections (abfd); | |
2228 | for (i = shindex + 1; i < num_sec; i++) | |
2229 | { | |
2230 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2231 | ||
2232 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2233 | && hdr2->sh_link == shindex) | |
2234 | break; | |
2235 | } | |
2236 | ||
2237 | if (i == num_sec) | |
2238 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2239 | { |
2240 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2241 | |
1b3a8575 AM |
2242 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2243 | && hdr2->sh_link == shindex) | |
2244 | break; | |
2245 | } | |
6a40cf0c NC |
2246 | |
2247 | if (i != shindex) | |
2248 | ret = bfd_section_from_shdr (abfd, i); | |
2249 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2250 | goto success; | |
2251 | } | |
252b5132 | 2252 | |
bf67003b | 2253 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2254 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2255 | goto success; |
252b5132 | 2256 | |
a50b2160 | 2257 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2258 | goto fail; |
2259 | ||
eee3b786 AM |
2260 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2261 | { | |
2262 | if (hdr->sh_size != 0) | |
bf67003b NC |
2263 | goto fail; |
2264 | ||
eee3b786 AM |
2265 | /* Some linkers erroneously set sh_info to one with a |
2266 | zero sh_size. ld sees this as a global symbol count | |
2267 | of (unsigned) -1. Fix it here. */ | |
2268 | hdr->sh_info = 0; | |
bf67003b | 2269 | goto success; |
eee3b786 | 2270 | } |
bf67003b | 2271 | |
16ad13ec NC |
2272 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2273 | Unusual, but possible. Warn, but continue. */ | |
2274 | if (elf_dynsymtab (abfd) != 0) | |
2275 | { | |
4eca0228 | 2276 | _bfd_error_handler |
695344c0 | 2277 | /* xgettext:c-format */ |
871b3ab2 | 2278 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2279 | " - ignoring the table in section %u"), |
16ad13ec NC |
2280 | abfd, shindex); |
2281 | goto success; | |
2282 | } | |
252b5132 RH |
2283 | elf_dynsymtab (abfd) = shindex; |
2284 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2285 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2286 | abfd->flags |= HAS_SYMS; | |
2287 | ||
2288 | /* Besides being a symbol table, we also treat this as a regular | |
2289 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2290 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2291 | goto success; | |
252b5132 | 2292 | |
bf67003b | 2293 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2294 | { |
2295 | elf_section_list * entry; | |
9ad5cbcf | 2296 | |
6a40cf0c NC |
2297 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2298 | if (entry->ndx == shindex) | |
2299 | goto success; | |
07d6d2b8 | 2300 | |
7a6e0d89 | 2301 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2302 | if (entry == NULL) |
2303 | goto fail; | |
2304 | entry->ndx = shindex; | |
2305 | entry->hdr = * hdr; | |
2306 | entry->next = elf_symtab_shndx_list (abfd); | |
2307 | elf_symtab_shndx_list (abfd) = entry; | |
2308 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2309 | goto success; | |
2310 | } | |
9ad5cbcf | 2311 | |
bf67003b | 2312 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2313 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2314 | goto success; |
2315 | ||
252b5132 RH |
2316 | if (ehdr->e_shstrndx == shindex) |
2317 | { | |
2318 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2319 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2320 | goto success; |
252b5132 | 2321 | } |
bf67003b | 2322 | |
1b3a8575 AM |
2323 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2324 | { | |
2325 | symtab_strtab: | |
2326 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2327 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2328 | goto success; |
1b3a8575 | 2329 | } |
bf67003b | 2330 | |
1b3a8575 AM |
2331 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2332 | { | |
2333 | dynsymtab_strtab: | |
2334 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2335 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2336 | elf_elfsections (abfd)[shindex] = hdr; | |
2337 | /* We also treat this as a regular section, so that objcopy | |
2338 | can handle it. */ | |
bf67003b NC |
2339 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2340 | shindex); | |
2341 | goto success; | |
1b3a8575 | 2342 | } |
252b5132 | 2343 | |
1b3a8575 AM |
2344 | /* If the string table isn't one of the above, then treat it as a |
2345 | regular section. We need to scan all the headers to be sure, | |
2346 | just in case this strtab section appeared before the above. */ | |
2347 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2348 | { | |
2349 | unsigned int i, num_sec; | |
252b5132 | 2350 | |
1b3a8575 AM |
2351 | num_sec = elf_numsections (abfd); |
2352 | for (i = 1; i < num_sec; i++) | |
2353 | { | |
2354 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2355 | if (hdr2->sh_link == shindex) | |
2356 | { | |
933d961a JJ |
2357 | /* Prevent endless recursion on broken objects. */ |
2358 | if (i == shindex) | |
bf67003b | 2359 | goto fail; |
1b3a8575 | 2360 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2361 | goto fail; |
1b3a8575 AM |
2362 | if (elf_onesymtab (abfd) == i) |
2363 | goto symtab_strtab; | |
2364 | if (elf_dynsymtab (abfd) == i) | |
2365 | goto dynsymtab_strtab; | |
2366 | } | |
2367 | } | |
2368 | } | |
bf67003b NC |
2369 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2370 | goto success; | |
252b5132 RH |
2371 | |
2372 | case SHT_REL: | |
2373 | case SHT_RELA: | |
2374 | /* *These* do a lot of work -- but build no sections! */ | |
2375 | { | |
2376 | asection *target_sect; | |
d4730f92 | 2377 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2378 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2379 | struct bfd_elf_section_data *esdt; |
252b5132 | 2380 | |
aa2ca951 JJ |
2381 | if (hdr->sh_entsize |
2382 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2383 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2384 | goto fail; |
a50b2160 | 2385 | |
03ae5f59 | 2386 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2387 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2388 | { |
4eca0228 | 2389 | _bfd_error_handler |
695344c0 | 2390 | /* xgettext:c-format */ |
871b3ab2 | 2391 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2392 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2393 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2394 | shindex); | |
2395 | goto success; | |
03ae5f59 ILT |
2396 | } |
2397 | ||
252b5132 RH |
2398 | /* For some incomprehensible reason Oracle distributes |
2399 | libraries for Solaris in which some of the objects have | |
2400 | bogus sh_link fields. It would be nice if we could just | |
2401 | reject them, but, unfortunately, some people need to use | |
2402 | them. We scan through the section headers; if we find only | |
2403 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2404 | to it. I hope this doesn't break anything. |
2405 | ||
2406 | Don't do it on executable nor shared library. */ | |
2407 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2408 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2409 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2410 | { | |
9ad5cbcf | 2411 | unsigned int scan; |
252b5132 RH |
2412 | int found; |
2413 | ||
2414 | found = 0; | |
9ad5cbcf | 2415 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2416 | { |
2417 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2418 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2419 | { | |
2420 | if (found != 0) | |
2421 | { | |
2422 | found = 0; | |
2423 | break; | |
2424 | } | |
2425 | found = scan; | |
2426 | } | |
2427 | } | |
2428 | if (found != 0) | |
2429 | hdr->sh_link = found; | |
2430 | } | |
2431 | ||
2432 | /* Get the symbol table. */ | |
1b3a8575 AM |
2433 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2434 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2435 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2436 | goto fail; |
252b5132 | 2437 | |
a4bcd733 AM |
2438 | /* If this is an alloc section in an executable or shared |
2439 | library, or the reloc section does not use the main symbol | |
2440 | table we don't treat it as a reloc section. BFD can't | |
2441 | adequately represent such a section, so at least for now, | |
2442 | we don't try. We just present it as a normal section. We | |
2443 | also can't use it as a reloc section if it points to the | |
2444 | null section, an invalid section, another reloc section, or | |
2445 | its sh_link points to the null section. */ | |
2446 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2447 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2448 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2449 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2450 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2451 | || hdr->sh_info >= num_sec |
2452 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2453 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2454 | { |
2455 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2456 | shindex); | |
2457 | goto success; | |
2458 | } | |
252b5132 RH |
2459 | |
2460 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2461 | goto fail; |
2462 | ||
252b5132 RH |
2463 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2464 | if (target_sect == NULL) | |
bf67003b | 2465 | goto fail; |
252b5132 | 2466 | |
d4730f92 BS |
2467 | esdt = elf_section_data (target_sect); |
2468 | if (hdr->sh_type == SHT_RELA) | |
2469 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2470 | else |
d4730f92 BS |
2471 | p_hdr = &esdt->rel.hdr; |
2472 | ||
a7ba3896 NC |
2473 | /* PR 17512: file: 0b4f81b7. |
2474 | Also see PR 24456, for a file which deliberately has two reloc | |
2475 | sections. */ | |
06614111 | 2476 | if (*p_hdr != NULL) |
a7ba3896 NC |
2477 | { |
2478 | _bfd_error_handler | |
2479 | /* xgettext:c-format */ | |
2480 | (_("%pB: warning: multiple relocation sections for section %pA \ | |
2481 | found - ignoring all but the first"), | |
2482 | abfd, target_sect); | |
2483 | goto success; | |
2484 | } | |
ef53be89 | 2485 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2486 | if (hdr2 == NULL) |
bf67003b | 2487 | goto fail; |
252b5132 | 2488 | *hdr2 = *hdr; |
d4730f92 | 2489 | *p_hdr = hdr2; |
252b5132 | 2490 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2491 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2492 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2493 | target_sect->flags |= SEC_RELOC; |
2494 | target_sect->relocation = NULL; | |
2495 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2496 | /* In the section to which the relocations apply, mark whether |
2497 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2498 | if (hdr->sh_size != 0) |
d4730f92 BS |
2499 | { |
2500 | if (hdr->sh_type == SHT_RELA) | |
2501 | target_sect->use_rela_p = 1; | |
2502 | } | |
252b5132 | 2503 | abfd->flags |= HAS_RELOC; |
bf67003b | 2504 | goto success; |
252b5132 | 2505 | } |
252b5132 RH |
2506 | |
2507 | case SHT_GNU_verdef: | |
2508 | elf_dynverdef (abfd) = shindex; | |
2509 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2510 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2511 | goto success; | |
252b5132 RH |
2512 | |
2513 | case SHT_GNU_versym: | |
a50b2160 | 2514 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2515 | goto fail; |
2516 | ||
252b5132 RH |
2517 | elf_dynversym (abfd) = shindex; |
2518 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2519 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2520 | goto success; | |
252b5132 RH |
2521 | |
2522 | case SHT_GNU_verneed: | |
2523 | elf_dynverref (abfd) = shindex; | |
2524 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2525 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2526 | goto success; | |
252b5132 RH |
2527 | |
2528 | case SHT_SHLIB: | |
bf67003b | 2529 | goto success; |
252b5132 | 2530 | |
dbb410c3 | 2531 | case SHT_GROUP: |
44534af3 | 2532 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2533 | goto fail; |
2534 | ||
6dc132d9 | 2535 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2536 | goto fail; |
2537 | ||
bf67003b | 2538 | goto success; |
dbb410c3 | 2539 | |
252b5132 | 2540 | default: |
104d59d1 JM |
2541 | /* Possibly an attributes section. */ |
2542 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2543 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2544 | { | |
2545 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2546 | goto fail; |
104d59d1 | 2547 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2548 | goto success; |
104d59d1 JM |
2549 | } |
2550 | ||
252b5132 | 2551 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2552 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2553 | goto success; |
3eb70a79 L |
2554 | |
2555 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2556 | { | |
2557 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2558 | /* FIXME: How to properly handle allocated section reserved | |
2559 | for applications? */ | |
4eca0228 | 2560 | _bfd_error_handler |
695344c0 | 2561 | /* xgettext:c-format */ |
871b3ab2 | 2562 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2563 | abfd, hdr->sh_type, name); |
3eb70a79 | 2564 | else |
bf67003b NC |
2565 | { |
2566 | /* Allow sections reserved for applications. */ | |
2567 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2568 | shindex); | |
2569 | goto success; | |
2570 | } | |
3eb70a79 L |
2571 | } |
2572 | else if (hdr->sh_type >= SHT_LOPROC | |
2573 | && hdr->sh_type <= SHT_HIPROC) | |
2574 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2575 | _bfd_error_handler |
695344c0 | 2576 | /* xgettext:c-format */ |
871b3ab2 | 2577 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2578 | abfd, hdr->sh_type, name); |
3eb70a79 | 2579 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2580 | { |
2581 | /* Unrecognised OS-specific sections. */ | |
2582 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2583 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2584 | required to correctly process the section and the file should |
ff15b240 | 2585 | be rejected with an error message. */ |
4eca0228 | 2586 | _bfd_error_handler |
695344c0 | 2587 | /* xgettext:c-format */ |
871b3ab2 | 2588 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2589 | abfd, hdr->sh_type, name); |
ff15b240 | 2590 | else |
bf67003b NC |
2591 | { |
2592 | /* Otherwise it should be processed. */ | |
2593 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2594 | goto success; | |
2595 | } | |
ff15b240 | 2596 | } |
3eb70a79 L |
2597 | else |
2598 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2599 | _bfd_error_handler |
695344c0 | 2600 | /* xgettext:c-format */ |
871b3ab2 | 2601 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2602 | abfd, hdr->sh_type, name); |
3eb70a79 | 2603 | |
bf67003b | 2604 | goto fail; |
252b5132 RH |
2605 | } |
2606 | ||
bf67003b NC |
2607 | fail: |
2608 | ret = FALSE; | |
2609 | success: | |
e5b470e2 | 2610 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2611 | sections_being_created [shindex] = FALSE; |
2612 | if (-- nesting == 0) | |
5a4b0ccc NC |
2613 | { |
2614 | sections_being_created = NULL; | |
2615 | sections_being_created_abfd = abfd; | |
2616 | } | |
bf67003b | 2617 | return ret; |
252b5132 RH |
2618 | } |
2619 | ||
87d72d41 | 2620 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2621 | |
87d72d41 AM |
2622 | Elf_Internal_Sym * |
2623 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2624 | bfd *abfd, | |
2625 | unsigned long r_symndx) | |
ec338859 | 2626 | { |
ec338859 AM |
2627 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2628 | ||
a5d1b3b5 AM |
2629 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2630 | { | |
2631 | Elf_Internal_Shdr *symtab_hdr; | |
2632 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2633 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2634 | |
a5d1b3b5 AM |
2635 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2636 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2637 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2638 | return NULL; |
9ad5cbcf | 2639 | |
a5d1b3b5 AM |
2640 | if (cache->abfd != abfd) |
2641 | { | |
2642 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2643 | cache->abfd = abfd; | |
2644 | } | |
2645 | cache->indx[ent] = r_symndx; | |
ec338859 | 2646 | } |
a5d1b3b5 | 2647 | |
87d72d41 | 2648 | return &cache->sym[ent]; |
ec338859 AM |
2649 | } |
2650 | ||
252b5132 RH |
2651 | /* Given an ELF section number, retrieve the corresponding BFD |
2652 | section. */ | |
2653 | ||
2654 | asection * | |
91d6fa6a | 2655 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2656 | { |
91d6fa6a | 2657 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2658 | return NULL; |
91d6fa6a | 2659 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2660 | } |
2661 | ||
b35d266b | 2662 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2663 | { |
0112cd26 | 2664 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2665 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2666 | }; |
2667 | ||
b35d266b | 2668 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2669 | { |
0112cd26 | 2670 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2671 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2672 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2673 | }; |
2674 | ||
b35d266b | 2675 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2676 | { |
07d6d2b8 AM |
2677 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2678 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2679 | /* There are more DWARF sections than these, but they needn't be added here |
2680 | unless you have to cope with broken compilers that don't emit section | |
2681 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2682 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2683 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2684 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2685 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2686 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2687 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2688 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2689 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2690 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2691 | }; |
2692 | ||
b35d266b | 2693 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2694 | { |
07d6d2b8 | 2695 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2696 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2697 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2698 | }; |
2699 | ||
b35d266b | 2700 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2701 | { |
0112cd26 | 2702 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2703 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2704 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2705 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2706 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2707 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2708 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2709 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2710 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2711 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2712 | }; |
2713 | ||
b35d266b | 2714 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2715 | { |
07d6d2b8 AM |
2716 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2717 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2718 | }; |
2719 | ||
b35d266b | 2720 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2721 | { |
07d6d2b8 | 2722 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2723 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2724 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2725 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2726 | }; |
2727 | ||
b35d266b | 2728 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2729 | { |
0112cd26 | 2730 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2731 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2732 | }; |
2733 | ||
b35d266b | 2734 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2735 | { |
0112cd26 | 2736 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2737 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2738 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2739 | }; |
2740 | ||
b35d266b | 2741 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2742 | { |
6f9dbcd4 | 2743 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2744 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2745 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2746 | }; |
2747 | ||
b35d266b | 2748 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2749 | { |
0112cd26 NC |
2750 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2751 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2752 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2753 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2754 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2755 | }; |
2756 | ||
b35d266b | 2757 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2758 | { |
0112cd26 NC |
2759 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2760 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2761 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2762 | /* See struct bfd_elf_special_section declaration for the semantics of |
2763 | this special case where .prefix_length != strlen (.prefix). */ | |
2764 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2765 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2766 | }; |
2767 | ||
b35d266b | 2768 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2769 | { |
07d6d2b8 AM |
2770 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2771 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2772 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2773 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2774 | }; |
2775 | ||
1b315056 CS |
2776 | static const struct bfd_elf_special_section special_sections_z[] = |
2777 | { | |
07d6d2b8 AM |
2778 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2779 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2780 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2781 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2782 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2783 | }; |
2784 | ||
e4c93b56 | 2785 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2786 | { |
7f4d3958 | 2787 | special_sections_b, /* 'b' */ |
98ece1b3 | 2788 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2789 | special_sections_d, /* 'd' */ |
2790 | NULL, /* 'e' */ | |
2791 | special_sections_f, /* 'f' */ | |
2792 | special_sections_g, /* 'g' */ | |
2793 | special_sections_h, /* 'h' */ | |
2794 | special_sections_i, /* 'i' */ | |
2795 | NULL, /* 'j' */ | |
2796 | NULL, /* 'k' */ | |
2797 | special_sections_l, /* 'l' */ | |
2798 | NULL, /* 'm' */ | |
2799 | special_sections_n, /* 'n' */ | |
2800 | NULL, /* 'o' */ | |
2801 | special_sections_p, /* 'p' */ | |
2802 | NULL, /* 'q' */ | |
2803 | special_sections_r, /* 'r' */ | |
2804 | special_sections_s, /* 's' */ | |
2805 | special_sections_t, /* 't' */ | |
1b315056 CS |
2806 | NULL, /* 'u' */ |
2807 | NULL, /* 'v' */ | |
2808 | NULL, /* 'w' */ | |
2809 | NULL, /* 'x' */ | |
2810 | NULL, /* 'y' */ | |
2811 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2812 | }; |
2813 | ||
551b43fd AM |
2814 | const struct bfd_elf_special_section * |
2815 | _bfd_elf_get_special_section (const char *name, | |
2816 | const struct bfd_elf_special_section *spec, | |
2817 | unsigned int rela) | |
2f89ff8d L |
2818 | { |
2819 | int i; | |
7f4d3958 | 2820 | int len; |
7f4d3958 | 2821 | |
551b43fd | 2822 | len = strlen (name); |
7f4d3958 | 2823 | |
551b43fd | 2824 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2825 | { |
2826 | int suffix_len; | |
551b43fd | 2827 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2828 | |
2829 | if (len < prefix_len) | |
2830 | continue; | |
551b43fd | 2831 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2832 | continue; |
2833 | ||
551b43fd | 2834 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2835 | if (suffix_len <= 0) |
2836 | { | |
2837 | if (name[prefix_len] != 0) | |
2838 | { | |
2839 | if (suffix_len == 0) | |
2840 | continue; | |
2841 | if (name[prefix_len] != '.' | |
2842 | && (suffix_len == -2 | |
551b43fd | 2843 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2844 | continue; |
2845 | } | |
2846 | } | |
2847 | else | |
2848 | { | |
2849 | if (len < prefix_len + suffix_len) | |
2850 | continue; | |
2851 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2852 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2853 | suffix_len) != 0) |
2854 | continue; | |
2855 | } | |
551b43fd | 2856 | return &spec[i]; |
7dcb9820 | 2857 | } |
2f89ff8d L |
2858 | |
2859 | return NULL; | |
2860 | } | |
2861 | ||
7dcb9820 | 2862 | const struct bfd_elf_special_section * |
29ef7005 | 2863 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2864 | { |
551b43fd AM |
2865 | int i; |
2866 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2867 | const struct elf_backend_data *bed; |
2f89ff8d L |
2868 | |
2869 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2870 | if (sec->name == NULL) |
2871 | return NULL; | |
2f89ff8d | 2872 | |
29ef7005 L |
2873 | bed = get_elf_backend_data (abfd); |
2874 | spec = bed->special_sections; | |
2875 | if (spec) | |
2876 | { | |
2877 | spec = _bfd_elf_get_special_section (sec->name, | |
2878 | bed->special_sections, | |
2879 | sec->use_rela_p); | |
2880 | if (spec != NULL) | |
2881 | return spec; | |
2882 | } | |
2883 | ||
551b43fd AM |
2884 | if (sec->name[0] != '.') |
2885 | return NULL; | |
2f89ff8d | 2886 | |
551b43fd | 2887 | i = sec->name[1] - 'b'; |
1b315056 | 2888 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2889 | return NULL; |
2890 | ||
2891 | spec = special_sections[i]; | |
2f89ff8d | 2892 | |
551b43fd AM |
2893 | if (spec == NULL) |
2894 | return NULL; | |
2895 | ||
2896 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2897 | } |
2898 | ||
b34976b6 | 2899 | bfd_boolean |
217aa764 | 2900 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2901 | { |
2902 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2903 | const struct elf_backend_data *bed; |
7dcb9820 | 2904 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2905 | |
f0abc2a1 AM |
2906 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2907 | if (sdata == NULL) | |
2908 | { | |
a50b1753 | 2909 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2910 | sizeof (*sdata)); |
f0abc2a1 AM |
2911 | if (sdata == NULL) |
2912 | return FALSE; | |
217aa764 | 2913 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2914 | } |
bf572ba0 | 2915 | |
551b43fd AM |
2916 | /* Indicate whether or not this section should use RELA relocations. */ |
2917 | bed = get_elf_backend_data (abfd); | |
2918 | sec->use_rela_p = bed->default_use_rela_p; | |
2919 | ||
e843e0f8 L |
2920 | /* When we read a file, we don't need to set ELF section type and |
2921 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2922 | anyway. We will set ELF section type and flags for all linker | |
2923 | created sections. If user specifies BFD section flags, we will | |
2924 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2925 | elf_fake_sections. Special handling for .init_array/.fini_array |
2926 | output sections since they may contain .ctors/.dtors input | |
2927 | sections. We don't want _bfd_elf_init_private_section_data to | |
2928 | copy ELF section type from .ctors/.dtors input sections. */ | |
2929 | if (abfd->direction != read_direction | |
3496cb2a | 2930 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2931 | { |
551b43fd | 2932 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2933 | if (ssect != NULL |
2934 | && (!sec->flags | |
2935 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2936 | || ssect->type == SHT_INIT_ARRAY | |
2937 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2938 | { |
2939 | elf_section_type (sec) = ssect->type; | |
2940 | elf_section_flags (sec) = ssect->attr; | |
2941 | } | |
2f89ff8d L |
2942 | } |
2943 | ||
f592407e | 2944 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2945 | } |
2946 | ||
2947 | /* Create a new bfd section from an ELF program header. | |
2948 | ||
2949 | Since program segments have no names, we generate a synthetic name | |
2950 | of the form segment<NUM>, where NUM is generally the index in the | |
2951 | program header table. For segments that are split (see below) we | |
2952 | generate the names segment<NUM>a and segment<NUM>b. | |
2953 | ||
2954 | Note that some program segments may have a file size that is different than | |
2955 | (less than) the memory size. All this means is that at execution the | |
2956 | system must allocate the amount of memory specified by the memory size, | |
2957 | but only initialize it with the first "file size" bytes read from the | |
2958 | file. This would occur for example, with program segments consisting | |
2959 | of combined data+bss. | |
2960 | ||
2961 | To handle the above situation, this routine generates TWO bfd sections | |
2962 | for the single program segment. The first has the length specified by | |
2963 | the file size of the segment, and the second has the length specified | |
2964 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2965 | into its initialized and uninitialized parts. |
252b5132 RH |
2966 | |
2967 | */ | |
2968 | ||
b34976b6 | 2969 | bfd_boolean |
217aa764 AM |
2970 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2971 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2972 | int hdr_index, |
a50b1753 | 2973 | const char *type_name) |
252b5132 RH |
2974 | { |
2975 | asection *newsect; | |
2976 | char *name; | |
2977 | char namebuf[64]; | |
d4c88bbb | 2978 | size_t len; |
252b5132 RH |
2979 | int split; |
2980 | ||
2981 | split = ((hdr->p_memsz > 0) | |
2982 | && (hdr->p_filesz > 0) | |
2983 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2984 | |
2985 | if (hdr->p_filesz > 0) | |
252b5132 | 2986 | { |
91d6fa6a | 2987 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2988 | len = strlen (namebuf) + 1; |
a50b1753 | 2989 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2990 | if (!name) |
2991 | return FALSE; | |
2992 | memcpy (name, namebuf, len); | |
2993 | newsect = bfd_make_section (abfd, name); | |
2994 | if (newsect == NULL) | |
2995 | return FALSE; | |
2996 | newsect->vma = hdr->p_vaddr; | |
2997 | newsect->lma = hdr->p_paddr; | |
2998 | newsect->size = hdr->p_filesz; | |
2999 | newsect->filepos = hdr->p_offset; | |
3000 | newsect->flags |= SEC_HAS_CONTENTS; | |
3001 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
3002 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 3003 | { |
d5191d0c AM |
3004 | newsect->flags |= SEC_ALLOC; |
3005 | newsect->flags |= SEC_LOAD; | |
3006 | if (hdr->p_flags & PF_X) | |
3007 | { | |
3008 | /* FIXME: all we known is that it has execute PERMISSION, | |
3009 | may be data. */ | |
3010 | newsect->flags |= SEC_CODE; | |
3011 | } | |
3012 | } | |
3013 | if (!(hdr->p_flags & PF_W)) | |
3014 | { | |
3015 | newsect->flags |= SEC_READONLY; | |
252b5132 | 3016 | } |
252b5132 RH |
3017 | } |
3018 | ||
d5191d0c | 3019 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 3020 | { |
d5191d0c AM |
3021 | bfd_vma align; |
3022 | ||
91d6fa6a | 3023 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 3024 | len = strlen (namebuf) + 1; |
a50b1753 | 3025 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3026 | if (!name) |
b34976b6 | 3027 | return FALSE; |
d4c88bbb | 3028 | memcpy (name, namebuf, len); |
252b5132 RH |
3029 | newsect = bfd_make_section (abfd, name); |
3030 | if (newsect == NULL) | |
b34976b6 | 3031 | return FALSE; |
252b5132 RH |
3032 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
3033 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 3034 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3035 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3036 | align = newsect->vma & -newsect->vma; | |
3037 | if (align == 0 || align > hdr->p_align) | |
3038 | align = hdr->p_align; | |
3039 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3040 | if (hdr->p_type == PT_LOAD) |
3041 | { | |
d5191d0c AM |
3042 | /* Hack for gdb. Segments that have not been modified do |
3043 | not have their contents written to a core file, on the | |
3044 | assumption that a debugger can find the contents in the | |
3045 | executable. We flag this case by setting the fake | |
3046 | section size to zero. Note that "real" bss sections will | |
3047 | always have their contents dumped to the core file. */ | |
3048 | if (bfd_get_format (abfd) == bfd_core) | |
3049 | newsect->size = 0; | |
252b5132 RH |
3050 | newsect->flags |= SEC_ALLOC; |
3051 | if (hdr->p_flags & PF_X) | |
3052 | newsect->flags |= SEC_CODE; | |
3053 | } | |
3054 | if (!(hdr->p_flags & PF_W)) | |
3055 | newsect->flags |= SEC_READONLY; | |
3056 | } | |
3057 | ||
b34976b6 | 3058 | return TRUE; |
252b5132 RH |
3059 | } |
3060 | ||
864619bb KS |
3061 | static bfd_boolean |
3062 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) | |
3063 | { | |
3064 | /* The return value is ignored. Build-ids are considered optional. */ | |
3065 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3066 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3067 | (templ, offset); | |
3068 | return FALSE; | |
3069 | } | |
3070 | ||
b34976b6 | 3071 | bfd_boolean |
91d6fa6a | 3072 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3073 | { |
9c5bfbb7 | 3074 | const struct elf_backend_data *bed; |
20cfcaae NC |
3075 | |
3076 | switch (hdr->p_type) | |
3077 | { | |
3078 | case PT_NULL: | |
91d6fa6a | 3079 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3080 | |
3081 | case PT_LOAD: | |
864619bb KS |
3082 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
3083 | return FALSE; | |
3084 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) | |
3085 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
3086 | return TRUE; | |
20cfcaae NC |
3087 | |
3088 | case PT_DYNAMIC: | |
91d6fa6a | 3089 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3090 | |
3091 | case PT_INTERP: | |
91d6fa6a | 3092 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3093 | |
3094 | case PT_NOTE: | |
91d6fa6a | 3095 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3096 | return FALSE; |
276da9b3 L |
3097 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3098 | hdr->p_align)) | |
b34976b6 AM |
3099 | return FALSE; |
3100 | return TRUE; | |
20cfcaae NC |
3101 | |
3102 | case PT_SHLIB: | |
91d6fa6a | 3103 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3104 | |
3105 | case PT_PHDR: | |
91d6fa6a | 3106 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3107 | |
811072d8 | 3108 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3109 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3110 | "eh_frame_hdr"); |
3111 | ||
2b05f1b7 | 3112 | case PT_GNU_STACK: |
91d6fa6a | 3113 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3114 | |
8c37241b | 3115 | case PT_GNU_RELRO: |
91d6fa6a | 3116 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3117 | |
20cfcaae | 3118 | default: |
8c1acd09 | 3119 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3120 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3121 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3122 | } |
3123 | } | |
3124 | ||
d4730f92 BS |
3125 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3126 | REL or RELA. */ | |
3127 | ||
3128 | Elf_Internal_Shdr * | |
3129 | _bfd_elf_single_rel_hdr (asection *sec) | |
3130 | { | |
3131 | if (elf_section_data (sec)->rel.hdr) | |
3132 | { | |
3133 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3134 | return elf_section_data (sec)->rel.hdr; | |
3135 | } | |
3136 | else | |
3137 | return elf_section_data (sec)->rela.hdr; | |
3138 | } | |
3139 | ||
3e19fb8f L |
3140 | static bfd_boolean |
3141 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3142 | Elf_Internal_Shdr *rel_hdr, | |
3143 | const char *sec_name, | |
3144 | bfd_boolean use_rela_p) | |
3145 | { | |
3146 | char *name = (char *) bfd_alloc (abfd, | |
3147 | sizeof ".rela" + strlen (sec_name)); | |
3148 | if (name == NULL) | |
3149 | return FALSE; | |
3150 | ||
3151 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3152 | rel_hdr->sh_name = | |
3153 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3154 | FALSE); | |
3155 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3156 | return FALSE; | |
3157 | ||
3158 | return TRUE; | |
3159 | } | |
3160 | ||
d4730f92 BS |
3161 | /* Allocate and initialize a section-header for a new reloc section, |
3162 | containing relocations against ASECT. It is stored in RELDATA. If | |
3163 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3164 | relocations. */ | |
23bc299b | 3165 | |
5d13b3b3 | 3166 | static bfd_boolean |
217aa764 | 3167 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3168 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3169 | const char *sec_name, |
3e19fb8f L |
3170 | bfd_boolean use_rela_p, |
3171 | bfd_boolean delay_st_name_p) | |
23bc299b | 3172 | { |
d4730f92 | 3173 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3174 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3175 | |
d4730f92 | 3176 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3177 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3178 | reldata->hdr = rel_hdr; |
23bc299b | 3179 | |
3e19fb8f L |
3180 | if (delay_st_name_p) |
3181 | rel_hdr->sh_name = (unsigned int) -1; | |
3182 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3183 | use_rela_p)) | |
b34976b6 | 3184 | return FALSE; |
23bc299b MM |
3185 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3186 | rel_hdr->sh_entsize = (use_rela_p | |
3187 | ? bed->s->sizeof_rela | |
3188 | : bed->s->sizeof_rel); | |
72de5009 | 3189 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3190 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3191 | rel_hdr->sh_addr = 0; |
3192 | rel_hdr->sh_size = 0; | |
3193 | rel_hdr->sh_offset = 0; | |
3194 | ||
b34976b6 | 3195 | return TRUE; |
23bc299b MM |
3196 | } |
3197 | ||
94be91de JB |
3198 | /* Return the default section type based on the passed in section flags. */ |
3199 | ||
3200 | int | |
3201 | bfd_elf_get_default_section_type (flagword flags) | |
3202 | { | |
0e41bebb | 3203 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3204 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3205 | return SHT_NOBITS; |
3206 | return SHT_PROGBITS; | |
3207 | } | |
3208 | ||
d4730f92 BS |
3209 | struct fake_section_arg |
3210 | { | |
3211 | struct bfd_link_info *link_info; | |
3212 | bfd_boolean failed; | |
3213 | }; | |
3214 | ||
252b5132 RH |
3215 | /* Set up an ELF internal section header for a section. */ |
3216 | ||
252b5132 | 3217 | static void |
d4730f92 | 3218 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3219 | { |
d4730f92 | 3220 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3221 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3222 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3223 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3224 | unsigned int sh_type; |
0ce398f1 | 3225 | const char *name = asect->name; |
3e19fb8f | 3226 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3227 | |
d4730f92 | 3228 | if (arg->failed) |
252b5132 RH |
3229 | { |
3230 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3231 | loop. */ |
252b5132 RH |
3232 | return; |
3233 | } | |
3234 | ||
d4730f92 | 3235 | this_hdr = &esd->this_hdr; |
252b5132 | 3236 | |
f6fe1ccd | 3237 | if (arg->link_info) |
0ce398f1 | 3238 | { |
f6fe1ccd L |
3239 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3240 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3241 | && (asect->flags & SEC_DEBUGGING) | |
3242 | && name[1] == 'd' | |
3243 | && name[6] == '_') | |
3244 | { | |
3245 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3246 | compressed. */ | |
3247 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3248 | |
dd905818 | 3249 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3250 | name to section name section after it is compressed in |
3251 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3252 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3253 | } |
3254 | } | |
3255 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3256 | { | |
3257 | /* objcopy: rename output DWARF debug section. */ | |
3258 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3259 | { | |
3260 | /* When we decompress or compress with SHF_COMPRESSED, | |
3261 | convert section name from .zdebug_* to .debug_* if | |
3262 | needed. */ | |
3263 | if (name[1] == 'z') | |
3264 | { | |
3265 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3266 | if (new_name == NULL) | |
3267 | { | |
3268 | arg->failed = TRUE; | |
3269 | return; | |
3270 | } | |
3271 | name = new_name; | |
3272 | } | |
3273 | } | |
3274 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3275 | { |
f6fe1ccd L |
3276 | /* PR binutils/18087: Compression does not always make a |
3277 | section smaller. So only rename the section when | |
3278 | compression has actually taken place. If input section | |
3279 | name is .zdebug_*, we should never compress it again. */ | |
3280 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3281 | if (new_name == NULL) |
3282 | { | |
3283 | arg->failed = TRUE; | |
3284 | return; | |
3285 | } | |
f6fe1ccd L |
3286 | BFD_ASSERT (name[1] != 'z'); |
3287 | name = new_name; | |
0ce398f1 L |
3288 | } |
3289 | } | |
3290 | ||
3e19fb8f L |
3291 | if (delay_st_name_p) |
3292 | this_hdr->sh_name = (unsigned int) -1; | |
3293 | else | |
252b5132 | 3294 | { |
3e19fb8f L |
3295 | this_hdr->sh_name |
3296 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3297 | name, FALSE); | |
3298 | if (this_hdr->sh_name == (unsigned int) -1) | |
3299 | { | |
3300 | arg->failed = TRUE; | |
3301 | return; | |
3302 | } | |
252b5132 RH |
3303 | } |
3304 | ||
a4d8e49b | 3305 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3306 | |
3307 | if ((asect->flags & SEC_ALLOC) != 0 | |
3308 | || asect->user_set_vma) | |
3309 | this_hdr->sh_addr = asect->vma; | |
3310 | else | |
3311 | this_hdr->sh_addr = 0; | |
3312 | ||
3313 | this_hdr->sh_offset = 0; | |
eea6121a | 3314 | this_hdr->sh_size = asect->size; |
252b5132 | 3315 | this_hdr->sh_link = 0; |
c86934ce NC |
3316 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3317 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3318 | { | |
4eca0228 | 3319 | _bfd_error_handler |
695344c0 | 3320 | /* xgettext:c-format */ |
9793eb77 | 3321 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3322 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3323 | arg->failed = TRUE; |
3324 | return; | |
3325 | } | |
72de5009 | 3326 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3327 | /* The sh_entsize and sh_info fields may have been set already by |
3328 | copy_private_section_data. */ | |
3329 | ||
3330 | this_hdr->bfd_section = asect; | |
3331 | this_hdr->contents = NULL; | |
3332 | ||
3cddba1e L |
3333 | /* If the section type is unspecified, we set it based on |
3334 | asect->flags. */ | |
98ece1b3 AM |
3335 | if ((asect->flags & SEC_GROUP) != 0) |
3336 | sh_type = SHT_GROUP; | |
98ece1b3 | 3337 | else |
94be91de | 3338 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3339 | |
3cddba1e | 3340 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3341 | this_hdr->sh_type = sh_type; |
3342 | else if (this_hdr->sh_type == SHT_NOBITS | |
3343 | && sh_type == SHT_PROGBITS | |
3344 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3345 | { |
98ece1b3 AM |
3346 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3347 | allow the link to proceed. This can happen when users link | |
3348 | non-bss input sections to bss output sections, or emit data | |
3349 | to a bss output section via a linker script. */ | |
4eca0228 | 3350 | _bfd_error_handler |
871b3ab2 | 3351 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3352 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3353 | } |
3354 | ||
2f89ff8d | 3355 | switch (this_hdr->sh_type) |
252b5132 | 3356 | { |
2f89ff8d | 3357 | default: |
2f89ff8d L |
3358 | break; |
3359 | ||
3360 | case SHT_STRTAB: | |
2f89ff8d L |
3361 | case SHT_NOTE: |
3362 | case SHT_NOBITS: | |
3363 | case SHT_PROGBITS: | |
3364 | break; | |
606851fb AM |
3365 | |
3366 | case SHT_INIT_ARRAY: | |
3367 | case SHT_FINI_ARRAY: | |
3368 | case SHT_PREINIT_ARRAY: | |
3369 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3370 | break; | |
2f89ff8d L |
3371 | |
3372 | case SHT_HASH: | |
c7ac6ff8 | 3373 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3374 | break; |
5de3bf90 | 3375 | |
2f89ff8d | 3376 | case SHT_DYNSYM: |
252b5132 | 3377 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3378 | break; |
3379 | ||
3380 | case SHT_DYNAMIC: | |
252b5132 | 3381 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3382 | break; |
3383 | ||
3384 | case SHT_RELA: | |
3385 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3386 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3387 | break; | |
3388 | ||
3389 | case SHT_REL: | |
3390 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3391 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3392 | break; | |
3393 | ||
3394 | case SHT_GNU_versym: | |
252b5132 | 3395 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3396 | break; |
3397 | ||
3398 | case SHT_GNU_verdef: | |
252b5132 RH |
3399 | this_hdr->sh_entsize = 0; |
3400 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3401 | cverdefs. The linker will set cverdefs, but sh_info will be |
3402 | zero. */ | |
252b5132 RH |
3403 | if (this_hdr->sh_info == 0) |
3404 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3405 | else | |
3406 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3407 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3408 | break; |
3409 | ||
3410 | case SHT_GNU_verneed: | |
252b5132 RH |
3411 | this_hdr->sh_entsize = 0; |
3412 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3413 | cverrefs. The linker will set cverrefs, but sh_info will be |
3414 | zero. */ | |
252b5132 RH |
3415 | if (this_hdr->sh_info == 0) |
3416 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3417 | else | |
3418 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3419 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3420 | break; |
3421 | ||
3422 | case SHT_GROUP: | |
1783205a | 3423 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3424 | break; |
fdc90cb4 JJ |
3425 | |
3426 | case SHT_GNU_HASH: | |
3427 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3428 | break; | |
dbb410c3 | 3429 | } |
252b5132 RH |
3430 | |
3431 | if ((asect->flags & SEC_ALLOC) != 0) | |
3432 | this_hdr->sh_flags |= SHF_ALLOC; | |
3433 | if ((asect->flags & SEC_READONLY) == 0) | |
3434 | this_hdr->sh_flags |= SHF_WRITE; | |
3435 | if ((asect->flags & SEC_CODE) != 0) | |
3436 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3437 | if ((asect->flags & SEC_MERGE) != 0) |
3438 | { | |
3439 | this_hdr->sh_flags |= SHF_MERGE; | |
3440 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3441 | } |
84865015 NC |
3442 | if ((asect->flags & SEC_STRINGS) != 0) |
3443 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3444 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3445 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3446 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3447 | { |
3448 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3449 | if (asect->size == 0 |
3450 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3451 | { |
3a800eb9 | 3452 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3453 | |
704afa60 | 3454 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3455 | if (o != NULL) |
3456 | { | |
704afa60 | 3457 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3458 | if (this_hdr->sh_size != 0) |
3459 | this_hdr->sh_type = SHT_NOBITS; | |
3460 | } | |
704afa60 JJ |
3461 | } |
3462 | } | |
18ae9cc1 L |
3463 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3464 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3465 | |
d4730f92 BS |
3466 | /* If the section has relocs, set up a section header for the |
3467 | SHT_REL[A] section. If two relocation sections are required for | |
3468 | this section, it is up to the processor-specific back-end to | |
3469 | create the other. */ | |
3470 | if ((asect->flags & SEC_RELOC) != 0) | |
3471 | { | |
3472 | /* When doing a relocatable link, create both REL and RELA sections if | |
3473 | needed. */ | |
3474 | if (arg->link_info | |
3475 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3476 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3477 | && (bfd_link_relocatable (arg->link_info) |
3478 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3479 | { |
3480 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3481 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3482 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3483 | { |
3484 | arg->failed = TRUE; | |
3485 | return; | |
3486 | } | |
3487 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3488 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3489 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3490 | { |
3491 | arg->failed = TRUE; | |
3492 | return; | |
3493 | } | |
3494 | } | |
3495 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3496 | (asect->use_rela_p | |
3497 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3498 | name, |
3e19fb8f L |
3499 | asect->use_rela_p, |
3500 | delay_st_name_p)) | |
db4677b8 | 3501 | { |
d4730f92 | 3502 | arg->failed = TRUE; |
db4677b8 AM |
3503 | return; |
3504 | } | |
d4730f92 BS |
3505 | } |
3506 | ||
252b5132 | 3507 | /* Check for processor-specific section types. */ |
0414f35b | 3508 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3509 | if (bed->elf_backend_fake_sections |
3510 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3511 | { |
3512 | arg->failed = TRUE; | |
3513 | return; | |
3514 | } | |
252b5132 | 3515 | |
42bb2e33 | 3516 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3517 | { |
3518 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3519 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3520 | this_hdr->sh_type = sh_type; |
3521 | } | |
252b5132 RH |
3522 | } |
3523 | ||
bcacc0f5 AM |
3524 | /* Fill in the contents of a SHT_GROUP section. Called from |
3525 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3526 | when ELF targets use the generic linker, ld. Called for ld -r | |
3527 | from bfd_elf_final_link. */ | |
dbb410c3 | 3528 | |
1126897b | 3529 | void |
217aa764 | 3530 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3531 | { |
a50b1753 | 3532 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3533 | asection *elt, *first; |
dbb410c3 | 3534 | unsigned char *loc; |
b34976b6 | 3535 | bfd_boolean gas; |
dbb410c3 | 3536 | |
7e4111ad L |
3537 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3538 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3539 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3540 | || sec->size == 0 | |
dbb410c3 AM |
3541 | || *failedptr) |
3542 | return; | |
3543 | ||
bcacc0f5 AM |
3544 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3545 | { | |
3546 | unsigned long symindx = 0; | |
3547 | ||
3548 | /* elf_group_id will have been set up by objcopy and the | |
3549 | generic linker. */ | |
3550 | if (elf_group_id (sec) != NULL) | |
3551 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3552 | |
bcacc0f5 AM |
3553 | if (symindx == 0) |
3554 | { | |
3555 | /* If called from the assembler, swap_out_syms will have set up | |
3556 | elf_section_syms. */ | |
3557 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3558 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3559 | } | |
3560 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3561 | } | |
3562 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3563 | { |
bcacc0f5 AM |
3564 | /* The ELF backend linker sets sh_info to -2 when the group |
3565 | signature symbol is global, and thus the index can't be | |
3566 | set until all local symbols are output. */ | |
53720c49 AM |
3567 | asection *igroup; |
3568 | struct bfd_elf_section_data *sec_data; | |
3569 | unsigned long symndx; | |
3570 | unsigned long extsymoff; | |
bcacc0f5 AM |
3571 | struct elf_link_hash_entry *h; |
3572 | ||
53720c49 AM |
3573 | /* The point of this little dance to the first SHF_GROUP section |
3574 | then back to the SHT_GROUP section is that this gets us to | |
3575 | the SHT_GROUP in the input object. */ | |
3576 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3577 | sec_data = elf_section_data (igroup); | |
3578 | symndx = sec_data->this_hdr.sh_info; | |
3579 | extsymoff = 0; | |
bcacc0f5 AM |
3580 | if (!elf_bad_symtab (igroup->owner)) |
3581 | { | |
3582 | Elf_Internal_Shdr *symtab_hdr; | |
3583 | ||
3584 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3585 | extsymoff = symtab_hdr->sh_info; | |
3586 | } | |
3587 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3588 | while (h->root.type == bfd_link_hash_indirect | |
3589 | || h->root.type == bfd_link_hash_warning) | |
3590 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3591 | ||
3592 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3593 | } |
dbb410c3 | 3594 | |
1126897b | 3595 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3596 | gas = TRUE; |
dbb410c3 AM |
3597 | if (sec->contents == NULL) |
3598 | { | |
b34976b6 | 3599 | gas = FALSE; |
a50b1753 | 3600 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3601 | |
3602 | /* Arrange for the section to be written out. */ | |
3603 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3604 | if (sec->contents == NULL) |
3605 | { | |
b34976b6 | 3606 | *failedptr = TRUE; |
dbb410c3 AM |
3607 | return; |
3608 | } | |
3609 | } | |
3610 | ||
eea6121a | 3611 | loc = sec->contents + sec->size; |
dbb410c3 | 3612 | |
9dce4196 AM |
3613 | /* Get the pointer to the first section in the group that gas |
3614 | squirreled away here. objcopy arranges for this to be set to the | |
3615 | start of the input section group. */ | |
3616 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3617 | |
3618 | /* First element is a flag word. Rest of section is elf section | |
3619 | indices for all the sections of the group. Write them backwards | |
3620 | just to keep the group in the same order as given in .section | |
3621 | directives, not that it matters. */ | |
3622 | while (elt != NULL) | |
3623 | { | |
9dce4196 | 3624 | asection *s; |
9dce4196 | 3625 | |
9dce4196 | 3626 | s = elt; |
415f38a6 AM |
3627 | if (!gas) |
3628 | s = s->output_section; | |
3629 | if (s != NULL | |
3630 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3631 | { |
db4677b8 | 3632 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3633 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3634 | ||
3635 | if (elf_sec->rel.hdr != NULL | |
3636 | && (gas | |
3637 | || (input_elf_sec->rel.hdr != NULL | |
3638 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3639 | { |
28e07a05 | 3640 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3641 | loc -= 4; |
3642 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3643 | } | |
28e07a05 AM |
3644 | if (elf_sec->rela.hdr != NULL |
3645 | && (gas | |
3646 | || (input_elf_sec->rela.hdr != NULL | |
3647 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3648 | { |
28e07a05 | 3649 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3650 | loc -= 4; |
3651 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3652 | } | |
01e1a5bc | 3653 | loc -= 4; |
db4677b8 | 3654 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3655 | } |
945906ff | 3656 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3657 | if (elt == first) |
3658 | break; | |
dbb410c3 AM |
3659 | } |
3660 | ||
7bdf4127 AB |
3661 | loc -= 4; |
3662 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3663 | |
9dce4196 | 3664 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3665 | } |
3666 | ||
bce964aa AM |
3667 | /* Given NAME, the name of a relocation section stripped of its |
3668 | .rel/.rela prefix, return the section in ABFD to which the | |
3669 | relocations apply. */ | |
bd53a53a L |
3670 | |
3671 | asection * | |
bce964aa AM |
3672 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3673 | { | |
3674 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3675 | section likely apply to .got.plt or .got section. */ | |
3676 | if (get_elf_backend_data (abfd)->want_got_plt | |
3677 | && strcmp (name, ".plt") == 0) | |
3678 | { | |
3679 | asection *sec; | |
3680 | ||
3681 | name = ".got.plt"; | |
3682 | sec = bfd_get_section_by_name (abfd, name); | |
3683 | if (sec != NULL) | |
3684 | return sec; | |
3685 | name = ".got"; | |
3686 | } | |
3687 | ||
3688 | return bfd_get_section_by_name (abfd, name); | |
3689 | } | |
3690 | ||
3691 | /* Return the section to which RELOC_SEC applies. */ | |
3692 | ||
3693 | static asection * | |
3694 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3695 | { |
3696 | const char *name; | |
3697 | unsigned int type; | |
3698 | bfd *abfd; | |
bce964aa | 3699 | const struct elf_backend_data *bed; |
bd53a53a L |
3700 | |
3701 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3702 | if (type != SHT_REL && type != SHT_RELA) | |
3703 | return NULL; | |
3704 | ||
3705 | /* We look up the section the relocs apply to by name. */ | |
3706 | name = reloc_sec->name; | |
bce964aa AM |
3707 | if (strncmp (name, ".rel", 4) != 0) |
3708 | return NULL; | |
3709 | name += 4; | |
3710 | if (type == SHT_RELA && *name++ != 'a') | |
3711 | return NULL; | |
bd53a53a | 3712 | |
bd53a53a | 3713 | abfd = reloc_sec->owner; |
bce964aa AM |
3714 | bed = get_elf_backend_data (abfd); |
3715 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3716 | } |
3717 | ||
252b5132 RH |
3718 | /* Assign all ELF section numbers. The dummy first section is handled here |
3719 | too. The link/info pointers for the standard section types are filled | |
3720 | in here too, while we're at it. */ | |
3721 | ||
b34976b6 | 3722 | static bfd_boolean |
da9f89d4 | 3723 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3724 | { |
3725 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3726 | asection *sec; | |
3e19fb8f | 3727 | unsigned int section_number; |
252b5132 | 3728 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3729 | struct bfd_elf_section_data *d; |
3516e984 | 3730 | bfd_boolean need_symtab; |
252b5132 RH |
3731 | |
3732 | section_number = 1; | |
3733 | ||
2b0f7ef9 JJ |
3734 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3735 | ||
da9f89d4 | 3736 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3737 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3738 | { |
ef53be89 | 3739 | size_t reloc_count = 0; |
14f2c699 | 3740 | |
da9f89d4 | 3741 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3742 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3743 | { |
5daa8fe7 | 3744 | d = elf_section_data (sec); |
da9f89d4 L |
3745 | |
3746 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3747 | { |
5daa8fe7 | 3748 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3749 | { |
3750 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3751 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3752 | abfd->section_count--; |
da9f89d4 | 3753 | } |
08a40648 | 3754 | else |
4fbb74a6 | 3755 | d->this_idx = section_number++; |
da9f89d4 | 3756 | } |
14f2c699 L |
3757 | |
3758 | /* Count relocations. */ | |
3759 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3760 | } |
14f2c699 L |
3761 | |
3762 | /* Clear HAS_RELOC if there are no relocations. */ | |
3763 | if (reloc_count == 0) | |
3764 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3765 | } |
3766 | ||
3767 | for (sec = abfd->sections; sec; sec = sec->next) | |
3768 | { | |
3769 | d = elf_section_data (sec); | |
3770 | ||
3771 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3772 | d->this_idx = section_number++; |
3e19fb8f L |
3773 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3774 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3775 | if (d->rel.hdr) |
2b0f7ef9 | 3776 | { |
d4730f92 | 3777 | d->rel.idx = section_number++; |
3e19fb8f L |
3778 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3779 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3780 | } |
d4730f92 BS |
3781 | else |
3782 | d->rel.idx = 0; | |
23bc299b | 3783 | |
d4730f92 | 3784 | if (d->rela.hdr) |
2b0f7ef9 | 3785 | { |
d4730f92 | 3786 | d->rela.idx = section_number++; |
3e19fb8f L |
3787 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3788 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3789 | } |
23bc299b | 3790 | else |
d4730f92 | 3791 | d->rela.idx = 0; |
252b5132 RH |
3792 | } |
3793 | ||
3516e984 L |
3794 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3795 | || (link_info == NULL | |
3796 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3797 | == HAS_RELOC))); | |
3798 | if (need_symtab) | |
252b5132 | 3799 | { |
12bd6957 | 3800 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3801 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3802 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3803 | { |
7a6e0d89 | 3804 | elf_section_list *entry; |
6a40cf0c NC |
3805 | |
3806 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3807 | ||
7a6e0d89 | 3808 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3809 | entry->ndx = section_number++; |
3810 | elf_symtab_shndx_list (abfd) = entry; | |
3811 | entry->hdr.sh_name | |
9ad5cbcf | 3812 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3813 | ".symtab_shndx", FALSE); |
6a40cf0c | 3814 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3815 | return FALSE; |
9ad5cbcf | 3816 | } |
12bd6957 | 3817 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3818 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3819 | } |
3820 | ||
dd905818 NC |
3821 | elf_shstrtab_sec (abfd) = section_number++; |
3822 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3823 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3824 | ||
1c52a645 L |
3825 | if (section_number >= SHN_LORESERVE) |
3826 | { | |
695344c0 | 3827 | /* xgettext:c-format */ |
871b3ab2 | 3828 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3829 | abfd, section_number); |
3830 | return FALSE; | |
3831 | } | |
3832 | ||
9ad5cbcf | 3833 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3834 | elf_elfheader (abfd)->e_shnum = section_number; |
3835 | ||
3836 | /* Set up the list of section header pointers, in agreement with the | |
3837 | indices. */ | |
a50b1753 | 3838 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
07d6d2b8 | 3839 | sizeof (Elf_Internal_Shdr *)); |
252b5132 | 3840 | if (i_shdrp == NULL) |
b34976b6 | 3841 | return FALSE; |
252b5132 | 3842 | |
a50b1753 | 3843 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3844 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3845 | if (i_shdrp[0] == NULL) |
3846 | { | |
3847 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3848 | return FALSE; |
252b5132 | 3849 | } |
252b5132 RH |
3850 | |
3851 | elf_elfsections (abfd) = i_shdrp; | |
3852 | ||
12bd6957 | 3853 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3854 | if (need_symtab) |
252b5132 | 3855 | { |
12bd6957 | 3856 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3857 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3858 | { |
6a40cf0c NC |
3859 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3860 | BFD_ASSERT (entry != NULL); | |
3861 | i_shdrp[entry->ndx] = & entry->hdr; | |
3862 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3863 | } |
12bd6957 AM |
3864 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3865 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3866 | } |
38ce5b11 | 3867 | |
252b5132 RH |
3868 | for (sec = abfd->sections; sec; sec = sec->next) |
3869 | { | |
252b5132 | 3870 | asection *s; |
252b5132 | 3871 | |
91d6fa6a NC |
3872 | d = elf_section_data (sec); |
3873 | ||
252b5132 | 3874 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3875 | if (d->rel.idx != 0) |
3876 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3877 | if (d->rela.idx != 0) | |
3878 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3879 | |
3880 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3881 | ||
3882 | /* sh_link of a reloc section is the section index of the symbol | |
3883 | table. sh_info is the section index of the section to which | |
3884 | the relocation entries apply. */ | |
d4730f92 | 3885 | if (d->rel.idx != 0) |
252b5132 | 3886 | { |
12bd6957 | 3887 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3888 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3889 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3890 | } |
d4730f92 | 3891 | if (d->rela.idx != 0) |
23bc299b | 3892 | { |
12bd6957 | 3893 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3894 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3895 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3896 | } |
252b5132 | 3897 | |
38ce5b11 L |
3898 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3899 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3900 | { | |
3901 | s = elf_linked_to_section (sec); | |
3902 | if (s) | |
38ce5b11 | 3903 | { |
f2876037 | 3904 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3905 | if (link_info != NULL) |
38ce5b11 | 3906 | { |
f2876037 | 3907 | /* Check discarded linkonce section. */ |
dbaa2011 | 3908 | if (discarded_section (s)) |
38ce5b11 | 3909 | { |
ccd2ec6a | 3910 | asection *kept; |
4eca0228 | 3911 | _bfd_error_handler |
695344c0 | 3912 | /* xgettext:c-format */ |
871b3ab2 AM |
3913 | (_("%pB: sh_link of section `%pA' points to" |
3914 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3915 | abfd, d->this_hdr.bfd_section, |
3916 | s, s->owner); | |
3917 | /* Point to the kept section if it has the same | |
3918 | size as the discarded one. */ | |
c0f00686 | 3919 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3920 | if (kept == NULL) |
185d09ad | 3921 | { |
ccd2ec6a L |
3922 | bfd_set_error (bfd_error_bad_value); |
3923 | return FALSE; | |
185d09ad | 3924 | } |
ccd2ec6a | 3925 | s = kept; |
38ce5b11 | 3926 | } |
e424ecc8 | 3927 | |
ccd2ec6a L |
3928 | s = s->output_section; |
3929 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3930 | } |
f2876037 L |
3931 | else |
3932 | { | |
3933 | /* Handle objcopy. */ | |
3934 | if (s->output_section == NULL) | |
3935 | { | |
4eca0228 | 3936 | _bfd_error_handler |
695344c0 | 3937 | /* xgettext:c-format */ |
871b3ab2 AM |
3938 | (_("%pB: sh_link of section `%pA' points to" |
3939 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3940 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3941 | bfd_set_error (bfd_error_bad_value); | |
3942 | return FALSE; | |
3943 | } | |
3944 | s = s->output_section; | |
3945 | } | |
ccd2ec6a L |
3946 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3947 | } | |
3948 | else | |
3949 | { | |
3950 | /* PR 290: | |
3951 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3952 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3953 | sh_info fields. Hence we could get the situation | |
08a40648 | 3954 | where s is NULL. */ |
ccd2ec6a L |
3955 | const struct elf_backend_data *bed |
3956 | = get_elf_backend_data (abfd); | |
3957 | if (bed->link_order_error_handler) | |
3958 | bed->link_order_error_handler | |
695344c0 | 3959 | /* xgettext:c-format */ |
871b3ab2 | 3960 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3961 | abfd, sec); |
38ce5b11 L |
3962 | } |
3963 | } | |
3964 | ||
252b5132 RH |
3965 | switch (d->this_hdr.sh_type) |
3966 | { | |
3967 | case SHT_REL: | |
3968 | case SHT_RELA: | |
3969 | /* A reloc section which we are treating as a normal BFD | |
3970 | section. sh_link is the section index of the symbol | |
3971 | table. sh_info is the section index of the section to | |
3972 | which the relocation entries apply. We assume that an | |
3973 | allocated reloc section uses the dynamic symbol table. | |
3974 | FIXME: How can we be sure? */ | |
3975 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3976 | if (s != NULL) | |
3977 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3978 | ||
bce964aa | 3979 | s = elf_get_reloc_section (sec); |
252b5132 | 3980 | if (s != NULL) |
9ef5d938 L |
3981 | { |
3982 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3983 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3984 | } | |
252b5132 RH |
3985 | break; |
3986 | ||
3987 | case SHT_STRTAB: | |
3988 | /* We assume that a section named .stab*str is a stabs | |
3989 | string section. We look for a section with the same name | |
3990 | but without the trailing ``str'', and set its sh_link | |
3991 | field to point to this section. */ | |
0112cd26 | 3992 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3993 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3994 | { | |
3995 | size_t len; | |
3996 | char *alc; | |
3997 | ||
3998 | len = strlen (sec->name); | |
a50b1753 | 3999 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 4000 | if (alc == NULL) |
b34976b6 | 4001 | return FALSE; |
d4c88bbb | 4002 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
4003 | alc[len - 3] = '\0'; |
4004 | s = bfd_get_section_by_name (abfd, alc); | |
4005 | free (alc); | |
4006 | if (s != NULL) | |
4007 | { | |
4008 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
4009 | ||
4010 | /* This is a .stab section. */ | |
0594c12d AM |
4011 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
4012 | elf_section_data (s)->this_hdr.sh_entsize | |
4013 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
4014 | } |
4015 | } | |
4016 | break; | |
4017 | ||
4018 | case SHT_DYNAMIC: | |
4019 | case SHT_DYNSYM: | |
4020 | case SHT_GNU_verneed: | |
4021 | case SHT_GNU_verdef: | |
4022 | /* sh_link is the section header index of the string table | |
4023 | used for the dynamic entries, or the symbol table, or the | |
4024 | version strings. */ | |
4025 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
4026 | if (s != NULL) | |
4027 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4028 | break; | |
4029 | ||
7f1204bb JJ |
4030 | case SHT_GNU_LIBLIST: |
4031 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
4032 | list used for the dynamic entries, or the symbol table, or |
4033 | the version strings. */ | |
7f1204bb JJ |
4034 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
4035 | ? ".dynstr" : ".gnu.libstr"); | |
4036 | if (s != NULL) | |
4037 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4038 | break; | |
4039 | ||
252b5132 | 4040 | case SHT_HASH: |
fdc90cb4 | 4041 | case SHT_GNU_HASH: |
252b5132 RH |
4042 | case SHT_GNU_versym: |
4043 | /* sh_link is the section header index of the symbol table | |
4044 | this hash table or version table is for. */ | |
4045 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4046 | if (s != NULL) | |
4047 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4048 | break; | |
dbb410c3 AM |
4049 | |
4050 | case SHT_GROUP: | |
12bd6957 | 4051 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4052 | } |
4053 | } | |
4054 | ||
3e19fb8f L |
4055 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4056 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4057 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4058 | ||
b34976b6 | 4059 | return TRUE; |
252b5132 RH |
4060 | } |
4061 | ||
5372391b | 4062 | static bfd_boolean |
217aa764 | 4063 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4064 | { |
4065 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4066 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4067 | if (bed->elf_backend_sym_is_global) |
4068 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4069 | |
e47bf690 | 4070 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4071 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4072 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4073 | } |
4074 | ||
76359541 TP |
4075 | /* Filter global symbols of ABFD to include in the import library. All |
4076 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4077 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4078 | the beginning of that array. | |
4079 | ||
4080 | Returns the number of symbols to keep. */ | |
4081 | ||
4082 | unsigned int | |
4083 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4084 | asymbol **syms, long symcount) | |
4085 | { | |
4086 | long src_count, dst_count = 0; | |
4087 | ||
4088 | for (src_count = 0; src_count < symcount; src_count++) | |
4089 | { | |
4090 | asymbol *sym = syms[src_count]; | |
4091 | char *name = (char *) bfd_asymbol_name (sym); | |
4092 | struct bfd_link_hash_entry *h; | |
4093 | ||
4094 | if (!sym_is_global (abfd, sym)) | |
4095 | continue; | |
4096 | ||
4097 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4098 | if (h == NULL) |
4099 | continue; | |
76359541 TP |
4100 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4101 | continue; | |
76359541 TP |
4102 | if (h->linker_def || h->ldscript_def) |
4103 | continue; | |
4104 | ||
4105 | syms[dst_count++] = sym; | |
4106 | } | |
4107 | ||
4108 | syms[dst_count] = NULL; | |
4109 | ||
4110 | return dst_count; | |
4111 | } | |
4112 | ||
5372391b | 4113 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4114 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4115 | |
4116 | static bfd_boolean | |
4117 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4118 | { | |
c6d8cab4 L |
4119 | elf_symbol_type *type_ptr; |
4120 | ||
db0c309f NC |
4121 | if (sym == NULL) |
4122 | return FALSE; | |
4123 | ||
c6d8cab4 L |
4124 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4125 | return FALSE; | |
4126 | ||
db0c309f NC |
4127 | if (sym->section == NULL) |
4128 | return TRUE; | |
4129 | ||
c6d8cab4 L |
4130 | type_ptr = elf_symbol_from (abfd, sym); |
4131 | return ((type_ptr != NULL | |
4132 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4133 | && bfd_is_abs_section (sym->section)) | |
4134 | || !(sym->section->owner == abfd | |
db0c309f NC |
4135 | || (sym->section->output_section != NULL |
4136 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4137 | && sym->section->output_offset == 0) |
4138 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4139 | } |
4140 | ||
2633a79c AM |
4141 | /* Map symbol from it's internal number to the external number, moving |
4142 | all local symbols to be at the head of the list. */ | |
4143 | ||
b34976b6 | 4144 | static bfd_boolean |
12bd6957 | 4145 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4146 | { |
dc810e39 | 4147 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4148 | asymbol **syms = bfd_get_outsymbols (abfd); |
4149 | asymbol **sect_syms; | |
dc810e39 AM |
4150 | unsigned int num_locals = 0; |
4151 | unsigned int num_globals = 0; | |
4152 | unsigned int num_locals2 = 0; | |
4153 | unsigned int num_globals2 = 0; | |
7292b3ac | 4154 | unsigned int max_index = 0; |
dc810e39 | 4155 | unsigned int idx; |
252b5132 RH |
4156 | asection *asect; |
4157 | asymbol **new_syms; | |
252b5132 RH |
4158 | |
4159 | #ifdef DEBUG | |
4160 | fprintf (stderr, "elf_map_symbols\n"); | |
4161 | fflush (stderr); | |
4162 | #endif | |
4163 | ||
252b5132 RH |
4164 | for (asect = abfd->sections; asect; asect = asect->next) |
4165 | { | |
4166 | if (max_index < asect->index) | |
4167 | max_index = asect->index; | |
4168 | } | |
4169 | ||
4170 | max_index++; | |
a50b1753 | 4171 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 4172 | if (sect_syms == NULL) |
b34976b6 | 4173 | return FALSE; |
252b5132 | 4174 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4175 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4176 | |
079e9a2f AM |
4177 | /* Init sect_syms entries for any section symbols we have already |
4178 | decided to output. */ | |
252b5132 RH |
4179 | for (idx = 0; idx < symcount; idx++) |
4180 | { | |
dc810e39 | 4181 | asymbol *sym = syms[idx]; |
c044fabd | 4182 | |
252b5132 | 4183 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4184 | && sym->value == 0 |
2633a79c AM |
4185 | && !ignore_section_sym (abfd, sym) |
4186 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4187 | { |
5372391b | 4188 | asection *sec = sym->section; |
252b5132 | 4189 | |
5372391b AM |
4190 | if (sec->owner != abfd) |
4191 | sec = sec->output_section; | |
252b5132 | 4192 | |
5372391b | 4193 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4194 | } |
4195 | } | |
4196 | ||
252b5132 RH |
4197 | /* Classify all of the symbols. */ |
4198 | for (idx = 0; idx < symcount; idx++) | |
4199 | { | |
2633a79c | 4200 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4201 | num_globals++; |
2633a79c AM |
4202 | else if (!ignore_section_sym (abfd, syms[idx])) |
4203 | num_locals++; | |
252b5132 | 4204 | } |
079e9a2f | 4205 | |
5372391b | 4206 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4207 | sections will already have a section symbol in outsymbols, but |
4208 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4209 | at least in that case. */ | |
252b5132 RH |
4210 | for (asect = abfd->sections; asect; asect = asect->next) |
4211 | { | |
079e9a2f | 4212 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4213 | { |
079e9a2f | 4214 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4215 | num_locals++; |
4216 | else | |
4217 | num_globals++; | |
252b5132 RH |
4218 | } |
4219 | } | |
4220 | ||
4221 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 | 4222 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
07d6d2b8 | 4223 | sizeof (asymbol *)); |
dc810e39 | 4224 | |
252b5132 | 4225 | if (new_syms == NULL) |
b34976b6 | 4226 | return FALSE; |
252b5132 RH |
4227 | |
4228 | for (idx = 0; idx < symcount; idx++) | |
4229 | { | |
4230 | asymbol *sym = syms[idx]; | |
dc810e39 | 4231 | unsigned int i; |
252b5132 | 4232 | |
2633a79c AM |
4233 | if (sym_is_global (abfd, sym)) |
4234 | i = num_locals + num_globals2++; | |
4235 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4236 | i = num_locals2++; |
4237 | else | |
2633a79c | 4238 | continue; |
252b5132 RH |
4239 | new_syms[i] = sym; |
4240 | sym->udata.i = i + 1; | |
4241 | } | |
4242 | for (asect = abfd->sections; asect; asect = asect->next) | |
4243 | { | |
079e9a2f | 4244 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4245 | { |
079e9a2f | 4246 | asymbol *sym = asect->symbol; |
dc810e39 | 4247 | unsigned int i; |
252b5132 | 4248 | |
079e9a2f | 4249 | sect_syms[asect->index] = sym; |
252b5132 RH |
4250 | if (!sym_is_global (abfd, sym)) |
4251 | i = num_locals2++; | |
4252 | else | |
4253 | i = num_locals + num_globals2++; | |
4254 | new_syms[i] = sym; | |
4255 | sym->udata.i = i + 1; | |
4256 | } | |
4257 | } | |
4258 | ||
4259 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4260 | ||
12bd6957 | 4261 | *pnum_locals = num_locals; |
b34976b6 | 4262 | return TRUE; |
252b5132 RH |
4263 | } |
4264 | ||
4265 | /* Align to the maximum file alignment that could be required for any | |
4266 | ELF data structure. */ | |
4267 | ||
268b6b39 | 4268 | static inline file_ptr |
217aa764 | 4269 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4270 | { |
4271 | return (off + align - 1) & ~(align - 1); | |
4272 | } | |
4273 | ||
4274 | /* Assign a file position to a section, optionally aligning to the | |
4275 | required section alignment. */ | |
4276 | ||
217aa764 AM |
4277 | file_ptr |
4278 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4279 | file_ptr offset, | |
4280 | bfd_boolean align) | |
252b5132 | 4281 | { |
72de5009 AM |
4282 | if (align && i_shdrp->sh_addralign > 1) |
4283 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4284 | i_shdrp->sh_offset = offset; |
4285 | if (i_shdrp->bfd_section != NULL) | |
4286 | i_shdrp->bfd_section->filepos = offset; | |
4287 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4288 | offset += i_shdrp->sh_size; | |
4289 | return offset; | |
4290 | } | |
4291 | ||
4292 | /* Compute the file positions we are going to put the sections at, and | |
4293 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4294 | is not NULL, this is being called by the ELF backend linker. */ | |
4295 | ||
b34976b6 | 4296 | bfd_boolean |
217aa764 AM |
4297 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4298 | struct bfd_link_info *link_info) | |
252b5132 | 4299 | { |
9c5bfbb7 | 4300 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4301 | struct fake_section_arg fsargs; |
b34976b6 | 4302 | bfd_boolean failed; |
ef10c3ac | 4303 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4304 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4305 | bfd_boolean need_symtab; |
252b5132 RH |
4306 | |
4307 | if (abfd->output_has_begun) | |
b34976b6 | 4308 | return TRUE; |
252b5132 RH |
4309 | |
4310 | /* Do any elf backend specific processing first. */ | |
4311 | if (bed->elf_backend_begin_write_processing) | |
4312 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4313 | ||
ed7e9d0b | 4314 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
b34976b6 | 4315 | return FALSE; |
252b5132 | 4316 | |
d4730f92 BS |
4317 | fsargs.failed = FALSE; |
4318 | fsargs.link_info = link_info; | |
4319 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4320 | if (fsargs.failed) | |
b34976b6 | 4321 | return FALSE; |
252b5132 | 4322 | |
da9f89d4 | 4323 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4324 | return FALSE; |
252b5132 RH |
4325 | |
4326 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4327 | need_symtab = (link_info == NULL |
4328 | && (bfd_get_symcount (abfd) > 0 | |
4329 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4330 | == HAS_RELOC))); | |
4331 | if (need_symtab) | |
252b5132 RH |
4332 | { |
4333 | /* Non-zero if doing a relocatable link. */ | |
4334 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4335 | ||
4336 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4337 | return FALSE; |
252b5132 RH |
4338 | } |
4339 | ||
d4730f92 | 4340 | failed = FALSE; |
1126897b | 4341 | if (link_info == NULL) |
dbb410c3 | 4342 | { |
1126897b | 4343 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4344 | if (failed) |
b34976b6 | 4345 | return FALSE; |
dbb410c3 AM |
4346 | } |
4347 | ||
252b5132 | 4348 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4349 | /* sh_name was set in init_file_header. */ |
252b5132 | 4350 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4351 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4352 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4353 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4354 | shstrtab_hdr->sh_entsize = 0; |
4355 | shstrtab_hdr->sh_link = 0; | |
4356 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4357 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4358 | shstrtab_hdr->sh_addralign = 1; |
4359 | ||
c84fca4d | 4360 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4361 | return FALSE; |
252b5132 | 4362 | |
3516e984 | 4363 | if (need_symtab) |
252b5132 RH |
4364 | { |
4365 | file_ptr off; | |
4366 | Elf_Internal_Shdr *hdr; | |
4367 | ||
12bd6957 | 4368 | off = elf_next_file_pos (abfd); |
252b5132 | 4369 | |
6a40cf0c | 4370 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4371 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4372 | |
6a40cf0c NC |
4373 | if (elf_symtab_shndx_list (abfd) != NULL) |
4374 | { | |
4375 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4376 | if (hdr->sh_size != 0) | |
4377 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4378 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4379 | } | |
9ad5cbcf | 4380 | |
252b5132 | 4381 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4382 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4383 | |
12bd6957 | 4384 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4385 | |
4386 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4387 | out. */ |
252b5132 | 4388 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4389 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4390 | return FALSE; |
ef10c3ac | 4391 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4392 | } |
4393 | ||
b34976b6 | 4394 | abfd->output_has_begun = TRUE; |
252b5132 | 4395 | |
b34976b6 | 4396 | return TRUE; |
252b5132 RH |
4397 | } |
4398 | ||
8ded5a0f AM |
4399 | /* Make an initial estimate of the size of the program header. If we |
4400 | get the number wrong here, we'll redo section placement. */ | |
4401 | ||
4402 | static bfd_size_type | |
4403 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4404 | { | |
4405 | size_t segs; | |
4406 | asection *s; | |
2b05f1b7 | 4407 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4408 | |
4409 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4410 | and one for data. */ | |
4411 | segs = 2; | |
4412 | ||
4413 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4414 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4415 | { |
4416 | /* If we have a loadable interpreter section, we need a | |
4417 | PT_INTERP segment. In this case, assume we also need a | |
4418 | PT_PHDR segment, although that may not be true for all | |
4419 | targets. */ | |
e9a38e0f | 4420 | segs += 2; |
8ded5a0f AM |
4421 | } |
4422 | ||
4423 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4424 | { | |
4425 | /* We need a PT_DYNAMIC segment. */ | |
4426 | ++segs; | |
f210dcff | 4427 | } |
08a40648 | 4428 | |
ceae84aa | 4429 | if (info != NULL && info->relro) |
f210dcff L |
4430 | { |
4431 | /* We need a PT_GNU_RELRO segment. */ | |
4432 | ++segs; | |
8ded5a0f AM |
4433 | } |
4434 | ||
12bd6957 | 4435 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4436 | { |
4437 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4438 | ++segs; | |
4439 | } | |
4440 | ||
12bd6957 | 4441 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4442 | { |
2b05f1b7 L |
4443 | /* We need a PT_GNU_STACK segment. */ |
4444 | ++segs; | |
4445 | } | |
94b11780 | 4446 | |
0a59decb L |
4447 | s = bfd_get_section_by_name (abfd, |
4448 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4449 | if (s != NULL && s->size != 0) | |
4450 | { | |
4451 | /* We need a PT_GNU_PROPERTY segment. */ | |
4452 | ++segs; | |
4453 | } | |
4454 | ||
2b05f1b7 L |
4455 | for (s = abfd->sections; s != NULL; s = s->next) |
4456 | { | |
8ded5a0f | 4457 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4458 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4459 | { |
23e463ed | 4460 | unsigned int alignment_power; |
8ded5a0f AM |
4461 | /* We need a PT_NOTE segment. */ |
4462 | ++segs; | |
23e463ed L |
4463 | /* Try to create just one PT_NOTE segment for all adjacent |
4464 | loadable SHT_NOTE sections. gABI requires that within a | |
4465 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4466 | each note should have the same alignment. So we check | |
4467 | whether the sections are correctly aligned. */ | |
4468 | alignment_power = s->alignment_power; | |
4469 | while (s->next != NULL | |
4470 | && s->next->alignment_power == alignment_power | |
4471 | && (s->next->flags & SEC_LOAD) != 0 | |
4472 | && elf_section_type (s->next) == SHT_NOTE) | |
4473 | s = s->next; | |
8ded5a0f AM |
4474 | } |
4475 | } | |
4476 | ||
4477 | for (s = abfd->sections; s != NULL; s = s->next) | |
4478 | { | |
4479 | if (s->flags & SEC_THREAD_LOCAL) | |
4480 | { | |
4481 | /* We need a PT_TLS segment. */ | |
4482 | ++segs; | |
4483 | break; | |
4484 | } | |
4485 | } | |
4486 | ||
2b05f1b7 | 4487 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4488 | |
df3a023b AM |
4489 | if ((abfd->flags & D_PAGED) != 0 |
4490 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4491 | { | |
4492 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4493 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4494 | for (s = abfd->sections; s != NULL; s = s->next) | |
4495 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4496 | { | |
4497 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4498 | { | |
4499 | _bfd_error_handler | |
4500 | /* xgettext:c-format */ | |
4501 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4502 | "sh_info field: %d"), | |
4503 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4504 | continue; | |
4505 | } | |
4506 | /* Align mbind section to page size. */ | |
4507 | if (s->alignment_power < page_align_power) | |
4508 | s->alignment_power = page_align_power; | |
4509 | segs ++; | |
4510 | } | |
4511 | } | |
4512 | ||
4513 | /* Let the backend count up any program headers it might need. */ | |
4514 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4515 | { |
4516 | int a; | |
4517 | ||
4518 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4519 | if (a == -1) | |
4520 | abort (); | |
4521 | segs += a; | |
4522 | } | |
4523 | ||
4524 | return segs * bed->s->sizeof_phdr; | |
4525 | } | |
4526 | ||
2ea37f1c NC |
4527 | /* Find the segment that contains the output_section of section. */ |
4528 | ||
4529 | Elf_Internal_Phdr * | |
4530 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4531 | { | |
4532 | struct elf_segment_map *m; | |
4533 | Elf_Internal_Phdr *p; | |
4534 | ||
12bd6957 | 4535 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4536 | m != NULL; |
4537 | m = m->next, p++) | |
4538 | { | |
4539 | int i; | |
4540 | ||
4541 | for (i = m->count - 1; i >= 0; i--) | |
4542 | if (m->sections[i] == section) | |
4543 | return p; | |
4544 | } | |
4545 | ||
4546 | return NULL; | |
4547 | } | |
4548 | ||
252b5132 RH |
4549 | /* Create a mapping from a set of sections to a program segment. */ |
4550 | ||
217aa764 AM |
4551 | static struct elf_segment_map * |
4552 | make_mapping (bfd *abfd, | |
4553 | asection **sections, | |
4554 | unsigned int from, | |
4555 | unsigned int to, | |
4556 | bfd_boolean phdr) | |
252b5132 RH |
4557 | { |
4558 | struct elf_segment_map *m; | |
4559 | unsigned int i; | |
4560 | asection **hdrpp; | |
dc810e39 | 4561 | bfd_size_type amt; |
252b5132 | 4562 | |
00bee008 AM |
4563 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4564 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4565 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4566 | if (m == NULL) |
4567 | return NULL; | |
4568 | m->next = NULL; | |
4569 | m->p_type = PT_LOAD; | |
4570 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4571 | m->sections[i - from] = *hdrpp; | |
4572 | m->count = to - from; | |
4573 | ||
4574 | if (from == 0 && phdr) | |
4575 | { | |
4576 | /* Include the headers in the first PT_LOAD segment. */ | |
4577 | m->includes_filehdr = 1; | |
4578 | m->includes_phdrs = 1; | |
4579 | } | |
4580 | ||
4581 | return m; | |
4582 | } | |
4583 | ||
229fcec5 MM |
4584 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4585 | on failure. */ | |
4586 | ||
4587 | struct elf_segment_map * | |
4588 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4589 | { | |
4590 | struct elf_segment_map *m; | |
4591 | ||
a50b1753 | 4592 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4593 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4594 | if (m == NULL) |
4595 | return NULL; | |
4596 | m->next = NULL; | |
4597 | m->p_type = PT_DYNAMIC; | |
4598 | m->count = 1; | |
4599 | m->sections[0] = dynsec; | |
08a40648 | 4600 | |
229fcec5 MM |
4601 | return m; |
4602 | } | |
4603 | ||
8ded5a0f | 4604 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4605 | |
b34976b6 | 4606 | static bfd_boolean |
3dea8fca AM |
4607 | elf_modify_segment_map (bfd *abfd, |
4608 | struct bfd_link_info *info, | |
4609 | bfd_boolean remove_empty_load) | |
252b5132 | 4610 | { |
252e386e | 4611 | struct elf_segment_map **m; |
8ded5a0f | 4612 | const struct elf_backend_data *bed; |
252b5132 | 4613 | |
8ded5a0f AM |
4614 | /* The placement algorithm assumes that non allocated sections are |
4615 | not in PT_LOAD segments. We ensure this here by removing such | |
4616 | sections from the segment map. We also remove excluded | |
252e386e AM |
4617 | sections. Finally, any PT_LOAD segment without sections is |
4618 | removed. */ | |
12bd6957 | 4619 | m = &elf_seg_map (abfd); |
252e386e | 4620 | while (*m) |
8ded5a0f AM |
4621 | { |
4622 | unsigned int i, new_count; | |
252b5132 | 4623 | |
252e386e | 4624 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4625 | { |
252e386e AM |
4626 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4627 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4628 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4629 | { |
252e386e AM |
4630 | (*m)->sections[new_count] = (*m)->sections[i]; |
4631 | new_count++; | |
8ded5a0f AM |
4632 | } |
4633 | } | |
252e386e | 4634 | (*m)->count = new_count; |
252b5132 | 4635 | |
1a9ccd70 NC |
4636 | if (remove_empty_load |
4637 | && (*m)->p_type == PT_LOAD | |
4638 | && (*m)->count == 0 | |
4639 | && !(*m)->includes_phdrs) | |
252e386e AM |
4640 | *m = (*m)->next; |
4641 | else | |
4642 | m = &(*m)->next; | |
8ded5a0f | 4643 | } |
252b5132 | 4644 | |
8ded5a0f AM |
4645 | bed = get_elf_backend_data (abfd); |
4646 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4647 | { |
252e386e | 4648 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4649 | return FALSE; |
252b5132 | 4650 | } |
252b5132 | 4651 | |
8ded5a0f AM |
4652 | return TRUE; |
4653 | } | |
252b5132 | 4654 | |
dbc88fc1 AM |
4655 | #define IS_TBSS(s) \ |
4656 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4657 | ||
8ded5a0f | 4658 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4659 | |
8ded5a0f AM |
4660 | bfd_boolean |
4661 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4662 | { | |
4663 | unsigned int count; | |
4664 | struct elf_segment_map *m; | |
4665 | asection **sections = NULL; | |
4666 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4667 | bfd_boolean no_user_phdrs; |
252b5132 | 4668 | |
12bd6957 | 4669 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4670 | |
4671 | if (info != NULL) | |
4672 | info->user_phdrs = !no_user_phdrs; | |
4673 | ||
3dea8fca | 4674 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4675 | { |
8ded5a0f AM |
4676 | asection *s; |
4677 | unsigned int i; | |
4678 | struct elf_segment_map *mfirst; | |
4679 | struct elf_segment_map **pm; | |
4680 | asection *last_hdr; | |
4681 | bfd_vma last_size; | |
00bee008 | 4682 | unsigned int hdr_index; |
8ded5a0f AM |
4683 | bfd_vma maxpagesize; |
4684 | asection **hdrpp; | |
64029e93 | 4685 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4686 | bfd_boolean writable; |
2888249f | 4687 | bfd_boolean executable; |
8ded5a0f AM |
4688 | int tls_count = 0; |
4689 | asection *first_tls = NULL; | |
a91e1603 | 4690 | asection *first_mbind = NULL; |
8ded5a0f AM |
4691 | asection *dynsec, *eh_frame_hdr; |
4692 | bfd_size_type amt; | |
8d06853e | 4693 | bfd_vma addr_mask, wrap_to = 0; |
64029e93 | 4694 | bfd_size_type phdr_size; |
252b5132 | 4695 | |
8ded5a0f | 4696 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4697 | |
a50b1753 | 4698 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
07d6d2b8 | 4699 | sizeof (asection *)); |
8ded5a0f | 4700 | if (sections == NULL) |
252b5132 | 4701 | goto error_return; |
252b5132 | 4702 | |
8d06853e AM |
4703 | /* Calculate top address, avoiding undefined behaviour of shift |
4704 | left operator when shift count is equal to size of type | |
4705 | being shifted. */ | |
4706 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4707 | addr_mask = (addr_mask << 1) + 1; | |
4708 | ||
8ded5a0f AM |
4709 | i = 0; |
4710 | for (s = abfd->sections; s != NULL; s = s->next) | |
4711 | { | |
4712 | if ((s->flags & SEC_ALLOC) != 0) | |
4713 | { | |
48db3297 AM |
4714 | /* target_index is unused until bfd_elf_final_link |
4715 | starts output of section symbols. Use it to make | |
4716 | qsort stable. */ | |
4717 | s->target_index = i; | |
8ded5a0f AM |
4718 | sections[i] = s; |
4719 | ++i; | |
8d06853e AM |
4720 | /* A wrapping section potentially clashes with header. */ |
4721 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4722 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4723 | } |
4724 | } | |
4725 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4726 | count = i; | |
252b5132 | 4727 | |
8ded5a0f | 4728 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4729 | |
64029e93 AM |
4730 | phdr_size = elf_program_header_size (abfd); |
4731 | if (phdr_size == (bfd_size_type) -1) | |
4732 | phdr_size = get_program_header_size (abfd, info); | |
4733 | phdr_size += bed->s->sizeof_ehdr; | |
4734 | maxpagesize = bed->maxpagesize; | |
4735 | if (maxpagesize == 0) | |
4736 | maxpagesize = 1; | |
4737 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4738 | if (count != 0 | |
4739 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4740 | >= (phdr_size & (maxpagesize - 1)))) | |
4741 | /* For compatibility with old scripts that may not be using | |
4742 | SIZEOF_HEADERS, add headers when it looks like space has | |
4743 | been left for them. */ | |
4744 | phdr_in_segment = TRUE; | |
252b5132 | 4745 | |
64029e93 | 4746 | /* Build the mapping. */ |
8ded5a0f AM |
4747 | mfirst = NULL; |
4748 | pm = &mfirst; | |
252b5132 | 4749 | |
8ded5a0f AM |
4750 | /* If we have a .interp section, then create a PT_PHDR segment for |
4751 | the program headers and a PT_INTERP segment for the .interp | |
4752 | section. */ | |
4753 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4754 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4755 | { |
4756 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4757 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4758 | if (m == NULL) |
4759 | goto error_return; | |
4760 | m->next = NULL; | |
4761 | m->p_type = PT_PHDR; | |
f882209d | 4762 | m->p_flags = PF_R; |
8ded5a0f AM |
4763 | m->p_flags_valid = 1; |
4764 | m->includes_phdrs = 1; | |
64029e93 | 4765 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4766 | *pm = m; |
4767 | pm = &m->next; | |
252b5132 | 4768 | |
8ded5a0f | 4769 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4770 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4771 | if (m == NULL) |
4772 | goto error_return; | |
4773 | m->next = NULL; | |
4774 | m->p_type = PT_INTERP; | |
4775 | m->count = 1; | |
4776 | m->sections[0] = s; | |
4777 | ||
4778 | *pm = m; | |
4779 | pm = &m->next; | |
252b5132 | 4780 | } |
8ded5a0f AM |
4781 | |
4782 | /* Look through the sections. We put sections in the same program | |
4783 | segment when the start of the second section can be placed within | |
4784 | a few bytes of the end of the first section. */ | |
4785 | last_hdr = NULL; | |
4786 | last_size = 0; | |
00bee008 | 4787 | hdr_index = 0; |
8ded5a0f | 4788 | writable = FALSE; |
2888249f | 4789 | executable = FALSE; |
8ded5a0f AM |
4790 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4791 | if (dynsec != NULL | |
4792 | && (dynsec->flags & SEC_LOAD) == 0) | |
4793 | dynsec = NULL; | |
4794 | ||
64029e93 AM |
4795 | if ((abfd->flags & D_PAGED) == 0) |
4796 | phdr_in_segment = FALSE; | |
4797 | ||
8ded5a0f AM |
4798 | /* Deal with -Ttext or something similar such that the first section |
4799 | is not adjacent to the program headers. This is an | |
4800 | approximation, since at this point we don't know exactly how many | |
4801 | program headers we will need. */ | |
64029e93 | 4802 | if (phdr_in_segment && count > 0) |
252b5132 | 4803 | { |
64029e93 AM |
4804 | bfd_vma phdr_lma; |
4805 | bfd_boolean separate_phdr = FALSE; | |
4806 | ||
4807 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4808 | if (info != NULL | |
4809 | && info->separate_code | |
4810 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4811 | { |
64029e93 AM |
4812 | /* If data sections should be separate from code and |
4813 | thus not executable, and the first section is | |
4814 | executable then put the file and program headers in | |
4815 | their own PT_LOAD. */ | |
4816 | separate_phdr = TRUE; | |
4817 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4818 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4819 | { | |
4820 | /* The file and program headers are currently on the | |
4821 | same page as the first section. Put them on the | |
4822 | previous page if we can. */ | |
4823 | if (phdr_lma >= maxpagesize) | |
4824 | phdr_lma -= maxpagesize; | |
4825 | else | |
4826 | separate_phdr = FALSE; | |
4827 | } | |
4828 | } | |
4829 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4830 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4831 | /* If file and program headers would be placed at the end | |
4832 | of memory then it's probably better to omit them. */ | |
4833 | phdr_in_segment = FALSE; | |
4834 | else if (phdr_lma < wrap_to) | |
4835 | /* If a section wraps around to where we'll be placing | |
4836 | file and program headers, then the headers will be | |
4837 | overwritten. */ | |
4838 | phdr_in_segment = FALSE; | |
4839 | else if (separate_phdr) | |
4840 | { | |
4841 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4842 | if (m == NULL) | |
4843 | goto error_return; | |
4844 | m->p_paddr = phdr_lma; | |
4845 | m->p_vaddr_offset | |
4846 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4847 | m->p_paddr_valid = 1; | |
4848 | *pm = m; | |
4849 | pm = &m->next; | |
4850 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4851 | } |
252b5132 RH |
4852 | } |
4853 | ||
8ded5a0f | 4854 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4855 | { |
8ded5a0f AM |
4856 | asection *hdr; |
4857 | bfd_boolean new_segment; | |
4858 | ||
4859 | hdr = *hdrpp; | |
4860 | ||
4861 | /* See if this section and the last one will fit in the same | |
4862 | segment. */ | |
4863 | ||
4864 | if (last_hdr == NULL) | |
4865 | { | |
4866 | /* If we don't have a segment yet, then we don't need a new | |
4867 | one (we build the last one after this loop). */ | |
4868 | new_segment = FALSE; | |
4869 | } | |
4870 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4871 | { | |
4872 | /* If this section has a different relation between the | |
4873 | virtual address and the load address, then we need a new | |
4874 | segment. */ | |
4875 | new_segment = TRUE; | |
4876 | } | |
b5599592 AM |
4877 | else if (hdr->lma < last_hdr->lma + last_size |
4878 | || last_hdr->lma + last_size < last_hdr->lma) | |
4879 | { | |
4880 | /* If this section has a load address that makes it overlap | |
4881 | the previous section, then we need a new segment. */ | |
4882 | new_segment = TRUE; | |
4883 | } | |
76cb3a89 AM |
4884 | else if ((abfd->flags & D_PAGED) != 0 |
4885 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4886 | == (hdr->lma & -maxpagesize))) | |
4887 | { | |
4888 | /* If we are demand paged then we can't map two disk | |
4889 | pages onto the same memory page. */ | |
4890 | new_segment = FALSE; | |
4891 | } | |
39948a60 NC |
4892 | /* In the next test we have to be careful when last_hdr->lma is close |
4893 | to the end of the address space. If the aligned address wraps | |
4894 | around to the start of the address space, then there are no more | |
4895 | pages left in memory and it is OK to assume that the current | |
4896 | section can be included in the current segment. */ | |
76cb3a89 AM |
4897 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4898 | + maxpagesize > last_hdr->lma) | |
4899 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4900 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4901 | { |
4902 | /* If putting this section in this segment would force us to | |
4903 | skip a page in the segment, then we need a new segment. */ | |
4904 | new_segment = TRUE; | |
4905 | } | |
4906 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4907 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4908 | { |
e5654c0f AM |
4909 | /* We don't want to put a loaded section after a |
4910 | nonloaded (ie. bss style) section in the same segment | |
4911 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4912 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4913 | new_segment = TRUE; |
4914 | } | |
4915 | else if ((abfd->flags & D_PAGED) == 0) | |
4916 | { | |
4917 | /* If the file is not demand paged, which means that we | |
4918 | don't require the sections to be correctly aligned in the | |
4919 | file, then there is no other reason for a new segment. */ | |
4920 | new_segment = FALSE; | |
4921 | } | |
2888249f L |
4922 | else if (info != NULL |
4923 | && info->separate_code | |
4924 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4925 | { | |
4926 | new_segment = TRUE; | |
4927 | } | |
8ded5a0f | 4928 | else if (! writable |
76cb3a89 | 4929 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4930 | { |
4931 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4932 | segment. */ |
8ded5a0f AM |
4933 | new_segment = TRUE; |
4934 | } | |
4935 | else | |
4936 | { | |
4937 | /* Otherwise, we can use the same segment. */ | |
4938 | new_segment = FALSE; | |
4939 | } | |
4940 | ||
2889e75b | 4941 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4942 | if (last_hdr != NULL |
4943 | && info != NULL | |
4944 | && info->callbacks->override_segment_assignment != NULL) | |
4945 | new_segment | |
4946 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4947 | last_hdr, | |
4948 | new_segment); | |
2889e75b | 4949 | |
8ded5a0f AM |
4950 | if (! new_segment) |
4951 | { | |
4952 | if ((hdr->flags & SEC_READONLY) == 0) | |
4953 | writable = TRUE; | |
2888249f L |
4954 | if ((hdr->flags & SEC_CODE) != 0) |
4955 | executable = TRUE; | |
8ded5a0f AM |
4956 | last_hdr = hdr; |
4957 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4958 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4959 | continue; |
4960 | } | |
4961 | ||
4962 | /* We need a new program segment. We must create a new program | |
00bee008 | 4963 | header holding all the sections from hdr_index until 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; | |
4968 | ||
4969 | *pm = m; | |
4970 | pm = &m->next; | |
4971 | ||
252b5132 | 4972 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4973 | writable = TRUE; |
8ded5a0f AM |
4974 | else |
4975 | writable = FALSE; | |
4976 | ||
2888249f L |
4977 | if ((hdr->flags & SEC_CODE) == 0) |
4978 | executable = FALSE; | |
4979 | else | |
4980 | executable = TRUE; | |
4981 | ||
baaff79e JJ |
4982 | last_hdr = hdr; |
4983 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4984 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
00bee008 | 4985 | hdr_index = i; |
8ded5a0f | 4986 | phdr_in_segment = FALSE; |
252b5132 RH |
4987 | } |
4988 | ||
86b2281f AM |
4989 | /* Create a final PT_LOAD program segment, but not if it's just |
4990 | for .tbss. */ | |
4991 | if (last_hdr != NULL | |
00bee008 | 4992 | && (i - hdr_index != 1 |
dbc88fc1 | 4993 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4994 | { |
00bee008 | 4995 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4996 | if (m == NULL) |
4997 | goto error_return; | |
252b5132 | 4998 | |
8ded5a0f AM |
4999 | *pm = m; |
5000 | pm = &m->next; | |
5001 | } | |
252b5132 | 5002 | |
8ded5a0f AM |
5003 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
5004 | if (dynsec != NULL) | |
5005 | { | |
5006 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
5007 | if (m == NULL) | |
5008 | goto error_return; | |
5009 | *pm = m; | |
5010 | pm = &m->next; | |
5011 | } | |
252b5132 | 5012 | |
23e463ed | 5013 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
5014 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
5015 | because if we link together nonloadable .note sections and | |
5016 | loadable .note sections, we will generate two .note sections | |
23e463ed | 5017 | in the output file. */ |
8ded5a0f AM |
5018 | for (s = abfd->sections; s != NULL; s = s->next) |
5019 | { | |
5020 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 5021 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 5022 | { |
1c5265b5 | 5023 | asection *s2; |
23e463ed | 5024 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5025 | |
5026 | count = 1; | |
23e463ed L |
5027 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5028 | { | |
5029 | if (s2->next->alignment_power == alignment_power | |
5030 | && (s2->next->flags & SEC_LOAD) != 0 | |
5031 | && elf_section_type (s2->next) == SHT_NOTE | |
5032 | && align_power (s2->lma + s2->size, | |
5033 | alignment_power) | |
5034 | == s2->next->lma) | |
5035 | count++; | |
5036 | else | |
5037 | break; | |
5038 | } | |
00bee008 AM |
5039 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5040 | amt += count * sizeof (asection *); | |
a50b1753 | 5041 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5042 | if (m == NULL) |
5043 | goto error_return; | |
5044 | m->next = NULL; | |
5045 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5046 | m->count = count; |
5047 | while (count > 1) | |
5048 | { | |
5049 | m->sections[m->count - count--] = s; | |
5050 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5051 | s = s->next; | |
5052 | } | |
5053 | m->sections[m->count - 1] = s; | |
5054 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5055 | *pm = m; |
5056 | pm = &m->next; | |
5057 | } | |
5058 | if (s->flags & SEC_THREAD_LOCAL) | |
5059 | { | |
5060 | if (! tls_count) | |
5061 | first_tls = s; | |
5062 | tls_count++; | |
5063 | } | |
a91e1603 L |
5064 | if (first_mbind == NULL |
5065 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5066 | first_mbind = s; | |
8ded5a0f | 5067 | } |
252b5132 | 5068 | |
8ded5a0f AM |
5069 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5070 | if (tls_count > 0) | |
5071 | { | |
00bee008 AM |
5072 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5073 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5074 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5075 | if (m == NULL) |
5076 | goto error_return; | |
5077 | m->next = NULL; | |
5078 | m->p_type = PT_TLS; | |
5079 | m->count = tls_count; | |
5080 | /* Mandated PF_R. */ | |
5081 | m->p_flags = PF_R; | |
5082 | m->p_flags_valid = 1; | |
d923cae0 | 5083 | s = first_tls; |
91d6fa6a | 5084 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 5085 | { |
d923cae0 L |
5086 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5087 | { | |
5088 | _bfd_error_handler | |
871b3ab2 | 5089 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5090 | s = first_tls; |
5091 | i = 0; | |
5092 | while (i < (unsigned int) tls_count) | |
5093 | { | |
5094 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5095 | { | |
871b3ab2 | 5096 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5097 | i++; |
5098 | } | |
5099 | else | |
871b3ab2 | 5100 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5101 | s = s->next; |
5102 | } | |
5103 | bfd_set_error (bfd_error_bad_value); | |
5104 | goto error_return; | |
5105 | } | |
5106 | m->sections[i] = s; | |
5107 | s = s->next; | |
8ded5a0f | 5108 | } |
252b5132 | 5109 | |
8ded5a0f AM |
5110 | *pm = m; |
5111 | pm = &m->next; | |
5112 | } | |
252b5132 | 5113 | |
df3a023b AM |
5114 | if (first_mbind |
5115 | && (abfd->flags & D_PAGED) != 0 | |
5116 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5117 | for (s = first_mbind; s != NULL; s = s->next) |
5118 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5119 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5120 | { |
5121 | /* Mandated PF_R. */ | |
5122 | unsigned long p_flags = PF_R; | |
5123 | if ((s->flags & SEC_READONLY) == 0) | |
5124 | p_flags |= PF_W; | |
5125 | if ((s->flags & SEC_CODE) != 0) | |
5126 | p_flags |= PF_X; | |
5127 | ||
5128 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5129 | m = bfd_zalloc (abfd, amt); | |
5130 | if (m == NULL) | |
5131 | goto error_return; | |
5132 | m->next = NULL; | |
5133 | m->p_type = (PT_GNU_MBIND_LO | |
5134 | + elf_section_data (s)->this_hdr.sh_info); | |
5135 | m->count = 1; | |
5136 | m->p_flags_valid = 1; | |
5137 | m->sections[0] = s; | |
5138 | m->p_flags = p_flags; | |
5139 | ||
5140 | *pm = m; | |
5141 | pm = &m->next; | |
5142 | } | |
5143 | ||
0a59decb L |
5144 | s = bfd_get_section_by_name (abfd, |
5145 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5146 | if (s != NULL && s->size != 0) | |
5147 | { | |
5148 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5149 | m = bfd_zalloc (abfd, amt); | |
5150 | if (m == NULL) | |
5151 | goto error_return; | |
5152 | m->next = NULL; | |
5153 | m->p_type = PT_GNU_PROPERTY; | |
5154 | m->count = 1; | |
5155 | m->p_flags_valid = 1; | |
5156 | m->sections[0] = s; | |
5157 | m->p_flags = PF_R; | |
5158 | *pm = m; | |
5159 | pm = &m->next; | |
5160 | } | |
5161 | ||
8ded5a0f AM |
5162 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5163 | segment. */ | |
12bd6957 | 5164 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5165 | if (eh_frame_hdr != NULL |
5166 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5167 | { |
dc810e39 | 5168 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5169 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5170 | if (m == NULL) |
5171 | goto error_return; | |
5172 | m->next = NULL; | |
8ded5a0f | 5173 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5174 | m->count = 1; |
8ded5a0f | 5175 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5176 | |
5177 | *pm = m; | |
5178 | pm = &m->next; | |
5179 | } | |
13ae64f3 | 5180 | |
12bd6957 | 5181 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5182 | { |
8ded5a0f | 5183 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5184 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5185 | if (m == NULL) |
5186 | goto error_return; | |
5187 | m->next = NULL; | |
2b05f1b7 | 5188 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5189 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5190 | m->p_align = bed->stack_align; |
8ded5a0f | 5191 | m->p_flags_valid = 1; |
04c3a755 NS |
5192 | m->p_align_valid = m->p_align != 0; |
5193 | if (info->stacksize > 0) | |
5194 | { | |
5195 | m->p_size = info->stacksize; | |
5196 | m->p_size_valid = 1; | |
5197 | } | |
252b5132 | 5198 | |
8ded5a0f AM |
5199 | *pm = m; |
5200 | pm = &m->next; | |
5201 | } | |
65765700 | 5202 | |
ceae84aa | 5203 | if (info != NULL && info->relro) |
8ded5a0f | 5204 | { |
f210dcff L |
5205 | for (m = mfirst; m != NULL; m = m->next) |
5206 | { | |
3832a4d8 AM |
5207 | if (m->p_type == PT_LOAD |
5208 | && m->count != 0 | |
5209 | && m->sections[0]->vma >= info->relro_start | |
5210 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5211 | { |
3832a4d8 AM |
5212 | i = m->count; |
5213 | while (--i != (unsigned) -1) | |
5214 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5215 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5216 | break; | |
5217 | ||
43a8475c | 5218 | if (i != (unsigned) -1) |
f210dcff L |
5219 | break; |
5220 | } | |
be01b344 | 5221 | } |
f210dcff L |
5222 | |
5223 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5224 | if (m != NULL) | |
5225 | { | |
5226 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5227 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5228 | if (m == NULL) |
5229 | goto error_return; | |
5230 | m->next = NULL; | |
5231 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5232 | *pm = m; |
5233 | pm = &m->next; | |
5234 | } | |
8ded5a0f | 5235 | } |
9ee5e499 | 5236 | |
8ded5a0f | 5237 | free (sections); |
12bd6957 | 5238 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5239 | } |
5240 | ||
3dea8fca | 5241 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5242 | return FALSE; |
8c37241b | 5243 | |
12bd6957 | 5244 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5245 | ++count; |
12bd6957 | 5246 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5247 | |
b34976b6 | 5248 | return TRUE; |
252b5132 RH |
5249 | |
5250 | error_return: | |
5251 | if (sections != NULL) | |
5252 | free (sections); | |
b34976b6 | 5253 | return FALSE; |
252b5132 RH |
5254 | } |
5255 | ||
5256 | /* Sort sections by address. */ | |
5257 | ||
5258 | static int | |
217aa764 | 5259 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5260 | { |
5261 | const asection *sec1 = *(const asection **) arg1; | |
5262 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5263 | bfd_size_type size1, size2; |
252b5132 RH |
5264 | |
5265 | /* Sort by LMA first, since this is the address used to | |
5266 | place the section into a segment. */ | |
5267 | if (sec1->lma < sec2->lma) | |
5268 | return -1; | |
5269 | else if (sec1->lma > sec2->lma) | |
5270 | return 1; | |
5271 | ||
5272 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5273 | the same, and this will do nothing. */ | |
5274 | if (sec1->vma < sec2->vma) | |
5275 | return -1; | |
5276 | else if (sec1->vma > sec2->vma) | |
5277 | return 1; | |
5278 | ||
5279 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5280 | ||
07c6e936 | 5281 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5282 | |
5283 | if (TOEND (sec1)) | |
5284 | { | |
48db3297 | 5285 | if (!TOEND (sec2)) |
252b5132 RH |
5286 | return 1; |
5287 | } | |
00a7cdc5 | 5288 | else if (TOEND (sec2)) |
252b5132 RH |
5289 | return -1; |
5290 | ||
5291 | #undef TOEND | |
5292 | ||
00a7cdc5 NC |
5293 | /* Sort by size, to put zero sized sections |
5294 | before others at the same address. */ | |
252b5132 | 5295 | |
eea6121a AM |
5296 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5297 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5298 | |
5299 | if (size1 < size2) | |
252b5132 | 5300 | return -1; |
eecdbe52 | 5301 | if (size1 > size2) |
252b5132 RH |
5302 | return 1; |
5303 | ||
5304 | return sec1->target_index - sec2->target_index; | |
5305 | } | |
5306 | ||
30fe1832 AM |
5307 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5308 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5309 | ||
5310 | static int | |
5311 | elf_sort_segments (const void *arg1, const void *arg2) | |
5312 | { | |
5313 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5314 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5315 | ||
5316 | if (m1->p_type != m2->p_type) | |
5317 | { | |
5318 | if (m1->p_type == PT_NULL) | |
5319 | return 1; | |
5320 | if (m2->p_type == PT_NULL) | |
5321 | return -1; | |
5322 | return m1->p_type < m2->p_type ? -1 : 1; | |
5323 | } | |
5324 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5325 | return m1->includes_filehdr ? -1 : 1; | |
5326 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5327 | return m1->no_sort_lma ? -1 : 1; | |
5328 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5329 | { | |
5330 | bfd_vma lma1, lma2; | |
5331 | lma1 = 0; | |
5332 | if (m1->p_paddr_valid) | |
5333 | lma1 = m1->p_paddr; | |
5334 | else if (m1->count != 0) | |
5335 | lma1 = m1->sections[0]->lma + m1->p_vaddr_offset; | |
5336 | lma2 = 0; | |
5337 | if (m2->p_paddr_valid) | |
5338 | lma2 = m2->p_paddr; | |
5339 | else if (m2->count != 0) | |
5340 | lma2 = m2->sections[0]->lma + m2->p_vaddr_offset; | |
5341 | if (lma1 != lma2) | |
5342 | return lma1 < lma2 ? -1 : 1; | |
5343 | } | |
5344 | if (m1->idx != m2->idx) | |
5345 | return m1->idx < m2->idx ? -1 : 1; | |
5346 | return 0; | |
5347 | } | |
5348 | ||
340b6d91 AC |
5349 | /* Ian Lance Taylor writes: |
5350 | ||
5351 | We shouldn't be using % with a negative signed number. That's just | |
5352 | not good. We have to make sure either that the number is not | |
5353 | negative, or that the number has an unsigned type. When the types | |
5354 | are all the same size they wind up as unsigned. When file_ptr is a | |
5355 | larger signed type, the arithmetic winds up as signed long long, | |
5356 | which is wrong. | |
5357 | ||
5358 | What we're trying to say here is something like ``increase OFF by | |
5359 | the least amount that will cause it to be equal to the VMA modulo | |
5360 | the page size.'' */ | |
5361 | /* In other words, something like: | |
5362 | ||
5363 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5364 | off_offset = off % bed->maxpagesize; | |
5365 | if (vma_offset < off_offset) | |
5366 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5367 | else | |
5368 | adjustment = vma_offset - off_offset; | |
08a40648 | 5369 | |
de194d85 | 5370 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5371 | |
5372 | static file_ptr | |
5373 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5374 | { | |
dc9155b2 NC |
5375 | /* PR binutils/16199: Handle an alignment of zero. */ |
5376 | if (maxpagesize == 0) | |
5377 | maxpagesize = 1; | |
340b6d91 AC |
5378 | return ((vma - off) % maxpagesize); |
5379 | } | |
5380 | ||
6d33f217 L |
5381 | static void |
5382 | print_segment_map (const struct elf_segment_map *m) | |
5383 | { | |
5384 | unsigned int j; | |
5385 | const char *pt = get_segment_type (m->p_type); | |
5386 | char buf[32]; | |
5387 | ||
5388 | if (pt == NULL) | |
5389 | { | |
5390 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5391 | sprintf (buf, "LOPROC+%7.7x", | |
5392 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5393 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5394 | sprintf (buf, "LOOS+%7.7x", | |
5395 | (unsigned int) (m->p_type - PT_LOOS)); | |
5396 | else | |
5397 | snprintf (buf, sizeof (buf), "%8.8x", | |
5398 | (unsigned int) m->p_type); | |
5399 | pt = buf; | |
5400 | } | |
4a97a0e5 | 5401 | fflush (stdout); |
6d33f217 L |
5402 | fprintf (stderr, "%s:", pt); |
5403 | for (j = 0; j < m->count; j++) | |
5404 | fprintf (stderr, " %s", m->sections [j]->name); | |
5405 | putc ('\n',stderr); | |
4a97a0e5 | 5406 | fflush (stderr); |
6d33f217 L |
5407 | } |
5408 | ||
32812159 AM |
5409 | static bfd_boolean |
5410 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5411 | { | |
5412 | void *buf; | |
5413 | bfd_boolean ret; | |
5414 | ||
5415 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5416 | return FALSE; | |
5417 | buf = bfd_zmalloc (len); | |
5418 | if (buf == NULL) | |
5419 | return FALSE; | |
5420 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5421 | free (buf); | |
5422 | return ret; | |
5423 | } | |
5424 | ||
252b5132 RH |
5425 | /* Assign file positions to the sections based on the mapping from |
5426 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5427 | the file header. */ |
252b5132 | 5428 | |
b34976b6 | 5429 | static bfd_boolean |
f3520d2f AM |
5430 | assign_file_positions_for_load_sections (bfd *abfd, |
5431 | struct bfd_link_info *link_info) | |
252b5132 RH |
5432 | { |
5433 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5434 | struct elf_segment_map *m; |
30fe1832 | 5435 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5436 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5437 | Elf_Internal_Phdr *p; |
02bf8d82 | 5438 | file_ptr off; |
3f570048 | 5439 | bfd_size_type maxpagesize; |
30fe1832 | 5440 | unsigned int alloc, actual; |
0920dee7 | 5441 | unsigned int i, j; |
30fe1832 | 5442 | struct elf_segment_map **sorted_seg_map; |
252b5132 | 5443 | |
e36284ab | 5444 | if (link_info == NULL |
ceae84aa | 5445 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5446 | return FALSE; |
252b5132 | 5447 | |
8ded5a0f | 5448 | alloc = 0; |
12bd6957 | 5449 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5450 | m->idx = alloc++; |
252b5132 | 5451 | |
82f2dbf7 NC |
5452 | if (alloc) |
5453 | { | |
5454 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5455 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5456 | } | |
5457 | else | |
5458 | { | |
5459 | /* PR binutils/12467. */ | |
5460 | elf_elfheader (abfd)->e_phoff = 0; | |
5461 | elf_elfheader (abfd)->e_phentsize = 0; | |
5462 | } | |
d324f6d6 | 5463 | |
8ded5a0f | 5464 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5465 | |
12bd6957 | 5466 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5467 | { |
5468 | actual = alloc; | |
5469 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5470 | } | |
8ded5a0f | 5471 | else |
30fe1832 AM |
5472 | { |
5473 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5474 | BFD_ASSERT (elf_program_header_size (abfd) | |
5475 | == actual * bed->s->sizeof_phdr); | |
5476 | BFD_ASSERT (actual >= alloc); | |
5477 | } | |
252b5132 RH |
5478 | |
5479 | if (alloc == 0) | |
f3520d2f | 5480 | { |
12bd6957 | 5481 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5482 | return TRUE; |
f3520d2f | 5483 | } |
252b5132 | 5484 | |
12bd6957 | 5485 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5486 | see assign_file_positions_except_relocs, so make sure we have |
5487 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5488 | The variable alloc contains the computed need, while |
5489 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5490 | layout. |
5491 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5492 | where the layout is forced to according to a larger size in the | |
5493 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5494 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5495 | + alloc * sizeof (*sorted_seg_map))); | |
5496 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5497 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5498 | if (phdrs == NULL) |
b34976b6 | 5499 | return FALSE; |
252b5132 | 5500 | |
30fe1832 | 5501 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5502 | { |
30fe1832 | 5503 | sorted_seg_map[j] = m; |
252b5132 | 5504 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5505 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5506 | not be done to the PT_NOTE section of a corefile, which may |
5507 | contain several pseudo-sections artificially created by bfd. | |
5508 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5509 | if (m->count > 1 |
5510 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5511 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5512 | { |
5513 | for (i = 0; i < m->count; i++) | |
5514 | m->sections[i]->target_index = i; | |
5515 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5516 | elf_sort_sections); | |
5517 | } | |
30fe1832 AM |
5518 | } |
5519 | if (alloc > 1) | |
5520 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5521 | elf_sort_segments); | |
5522 | ||
5523 | maxpagesize = 1; | |
5524 | if ((abfd->flags & D_PAGED) != 0) | |
5525 | maxpagesize = bed->maxpagesize; | |
5526 | ||
5527 | /* Sections must map to file offsets past the ELF file header. */ | |
5528 | off = bed->s->sizeof_ehdr; | |
5529 | /* And if one of the PT_LOAD headers doesn't include the program | |
5530 | headers then we'll be mapping program headers in the usual | |
5531 | position after the ELF file header. */ | |
5532 | phdr_load_seg = NULL; | |
5533 | for (j = 0; j < alloc; j++) | |
5534 | { | |
5535 | m = sorted_seg_map[j]; | |
5536 | if (m->p_type != PT_LOAD) | |
5537 | break; | |
5538 | if (m->includes_phdrs) | |
5539 | { | |
5540 | phdr_load_seg = m; | |
5541 | break; | |
5542 | } | |
5543 | } | |
5544 | if (phdr_load_seg == NULL) | |
5545 | off += actual * bed->s->sizeof_phdr; | |
5546 | ||
5547 | for (j = 0; j < alloc; j++) | |
5548 | { | |
5549 | asection **secpp; | |
5550 | bfd_vma off_adjust; | |
5551 | bfd_boolean no_contents; | |
252b5132 | 5552 | |
b301b248 AM |
5553 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5554 | number of sections with contents contributing to both p_filesz | |
5555 | and p_memsz, followed by a number of sections with no contents | |
5556 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5557 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5558 | m = sorted_seg_map[j]; |
5559 | p = phdrs + m->idx; | |
252b5132 | 5560 | p->p_type = m->p_type; |
28a7f3e7 | 5561 | p->p_flags = m->p_flags; |
252b5132 | 5562 | |
3f570048 | 5563 | if (m->count == 0) |
5d695627 | 5564 | p->p_vaddr = m->p_vaddr_offset; |
3f570048 | 5565 | else |
5d695627 | 5566 | p->p_vaddr = m->sections[0]->vma + m->p_vaddr_offset; |
3f570048 AM |
5567 | |
5568 | if (m->p_paddr_valid) | |
5569 | p->p_paddr = m->p_paddr; | |
5570 | else if (m->count == 0) | |
5571 | p->p_paddr = 0; | |
5572 | else | |
5d695627 | 5573 | p->p_paddr = m->sections[0]->lma + m->p_vaddr_offset; |
3f570048 AM |
5574 | |
5575 | if (p->p_type == PT_LOAD | |
5576 | && (abfd->flags & D_PAGED) != 0) | |
5577 | { | |
5578 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5579 | the maximum page size. When copying an executable with | |
5580 | objcopy, we set m->p_align from the input file. Use this | |
5581 | value for maxpagesize rather than bed->maxpagesize, which | |
5582 | may be different. Note that we use maxpagesize for PT_TLS | |
5583 | segment alignment later in this function, so we are relying | |
5584 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5585 | segment. */ | |
5586 | if (m->p_align_valid) | |
5587 | maxpagesize = m->p_align; | |
5588 | ||
5589 | p->p_align = maxpagesize; | |
5590 | } | |
3271a814 NS |
5591 | else if (m->p_align_valid) |
5592 | p->p_align = m->p_align; | |
e970b90a DJ |
5593 | else if (m->count == 0) |
5594 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5595 | |
5596 | if (m == phdr_load_seg) | |
5597 | { | |
5598 | if (!m->includes_filehdr) | |
5599 | p->p_offset = off; | |
5600 | off += actual * bed->s->sizeof_phdr; | |
5601 | } | |
3f570048 | 5602 | |
bf988460 AM |
5603 | no_contents = FALSE; |
5604 | off_adjust = 0; | |
252b5132 | 5605 | if (p->p_type == PT_LOAD |
b301b248 | 5606 | && m->count > 0) |
252b5132 | 5607 | { |
b301b248 | 5608 | bfd_size_type align; |
a49e53ed | 5609 | unsigned int align_power = 0; |
b301b248 | 5610 | |
3271a814 NS |
5611 | if (m->p_align_valid) |
5612 | align = p->p_align; | |
5613 | else | |
252b5132 | 5614 | { |
3271a814 NS |
5615 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5616 | { | |
5617 | unsigned int secalign; | |
08a40648 | 5618 | |
fd361982 | 5619 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5620 | if (secalign > align_power) |
5621 | align_power = secalign; | |
5622 | } | |
5623 | align = (bfd_size_type) 1 << align_power; | |
5624 | if (align < maxpagesize) | |
5625 | align = maxpagesize; | |
b301b248 | 5626 | } |
252b5132 | 5627 | |
02bf8d82 AM |
5628 | for (i = 0; i < m->count; i++) |
5629 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5630 | /* If we aren't making room for this section, then | |
5631 | it must be SHT_NOBITS regardless of what we've | |
5632 | set via struct bfd_elf_special_section. */ | |
5633 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5634 | ||
bf988460 | 5635 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5636 | sections. */ |
5637 | no_contents = TRUE; | |
5638 | for (i = 0; i < m->count; i++) | |
5639 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5640 | { | |
5641 | no_contents = FALSE; | |
5642 | break; | |
5643 | } | |
bf988460 | 5644 | |
85cfcbfb | 5645 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5646 | |
5647 | /* Broken hardware and/or kernel require that files do not | |
5648 | map the same page with different permissions on some hppa | |
5649 | processors. */ | |
30fe1832 AM |
5650 | if (j != 0 |
5651 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5652 | && bed->no_page_alias |
5653 | && (off & (maxpagesize - 1)) != 0 | |
5654 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5655 | off_adjust += maxpagesize; | |
bf988460 AM |
5656 | off += off_adjust; |
5657 | if (no_contents) | |
5658 | { | |
5659 | /* We shouldn't need to align the segment on disk since | |
5660 | the segment doesn't need file space, but the gABI | |
5661 | arguably requires the alignment and glibc ld.so | |
5662 | checks it. So to comply with the alignment | |
5663 | requirement but not waste file space, we adjust | |
5664 | p_offset for just this segment. (OFF_ADJUST is | |
5665 | subtracted from OFF later.) This may put p_offset | |
5666 | past the end of file, but that shouldn't matter. */ | |
5667 | } | |
5668 | else | |
5669 | off_adjust = 0; | |
252b5132 | 5670 | } |
b1a6d0b1 NC |
5671 | /* Make sure the .dynamic section is the first section in the |
5672 | PT_DYNAMIC segment. */ | |
5673 | else if (p->p_type == PT_DYNAMIC | |
5674 | && m->count > 1 | |
5675 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5676 | { | |
5677 | _bfd_error_handler | |
871b3ab2 | 5678 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5679 | " is not the .dynamic section"), |
b301b248 | 5680 | abfd); |
b1a6d0b1 NC |
5681 | bfd_set_error (bfd_error_bad_value); |
5682 | return FALSE; | |
5683 | } | |
3f001e84 JK |
5684 | /* Set the note section type to SHT_NOTE. */ |
5685 | else if (p->p_type == PT_NOTE) | |
5686 | for (i = 0; i < m->count; i++) | |
5687 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5688 | |
252b5132 RH |
5689 | if (m->includes_filehdr) |
5690 | { | |
bf988460 | 5691 | if (!m->p_flags_valid) |
252b5132 | 5692 | p->p_flags |= PF_R; |
252b5132 RH |
5693 | p->p_filesz = bed->s->sizeof_ehdr; |
5694 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5695 | if (p->p_type == PT_LOAD) |
252b5132 | 5696 | { |
30fe1832 | 5697 | if (m->count > 0) |
252b5132 | 5698 | { |
30fe1832 AM |
5699 | if (p->p_vaddr < (bfd_vma) off |
5700 | || (!m->p_paddr_valid | |
5701 | && p->p_paddr < (bfd_vma) off)) | |
5702 | { | |
5703 | _bfd_error_handler | |
5704 | (_("%pB: not enough room for program headers," | |
5705 | " try linking with -N"), | |
5706 | abfd); | |
5707 | bfd_set_error (bfd_error_bad_value); | |
5708 | return FALSE; | |
5709 | } | |
5710 | p->p_vaddr -= off; | |
5711 | if (!m->p_paddr_valid) | |
5712 | p->p_paddr -= off; | |
252b5132 | 5713 | } |
30fe1832 AM |
5714 | } |
5715 | else if (sorted_seg_map[0]->includes_filehdr) | |
5716 | { | |
5717 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5718 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5719 | if (!m->p_paddr_valid) |
30fe1832 | 5720 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5721 | } |
252b5132 RH |
5722 | } |
5723 | ||
5724 | if (m->includes_phdrs) | |
5725 | { | |
bf988460 | 5726 | if (!m->p_flags_valid) |
252b5132 | 5727 | p->p_flags |= PF_R; |
30fe1832 AM |
5728 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5729 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5730 | if (!m->includes_filehdr) |
252b5132 | 5731 | { |
30fe1832 | 5732 | if (p->p_type == PT_LOAD) |
252b5132 | 5733 | { |
30fe1832 AM |
5734 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5735 | if (m->count > 0) | |
5736 | { | |
5737 | p->p_vaddr -= off - p->p_offset; | |
5738 | if (!m->p_paddr_valid) | |
5739 | p->p_paddr -= off - p->p_offset; | |
5740 | } | |
5741 | } | |
5742 | else if (phdr_load_seg != NULL) | |
5743 | { | |
5744 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
5745 | bfd_vma phdr_off = 0; | |
5746 | if (phdr_load_seg->includes_filehdr) | |
5747 | phdr_off = bed->s->sizeof_ehdr; | |
5748 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5749 | if (!m->p_paddr_valid) |
30fe1832 AM |
5750 | p->p_paddr = phdr->p_paddr + phdr_off; |
5751 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5752 | } |
30fe1832 AM |
5753 | else |
5754 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5755 | } |
252b5132 RH |
5756 | } |
5757 | ||
5758 | if (p->p_type == PT_LOAD | |
5759 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5760 | { | |
bf988460 | 5761 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5762 | p->p_offset = off; |
252b5132 RH |
5763 | else |
5764 | { | |
5765 | file_ptr adjust; | |
5766 | ||
5767 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5768 | if (!no_contents) |
5769 | p->p_filesz += adjust; | |
252b5132 RH |
5770 | p->p_memsz += adjust; |
5771 | } | |
5772 | } | |
5773 | ||
1ea63fd2 AM |
5774 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5775 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5776 | core files, for sections in PT_NOTE segments. | |
5777 | assign_file_positions_for_non_load_sections will set filepos | |
5778 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5779 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5780 | { | |
5781 | asection *sec; | |
252b5132 | 5782 | bfd_size_type align; |
627b32bc | 5783 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5784 | |
5785 | sec = *secpp; | |
02bf8d82 | 5786 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5787 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5788 | |
88967714 AM |
5789 | if ((p->p_type == PT_LOAD |
5790 | || p->p_type == PT_TLS) | |
5791 | && (this_hdr->sh_type != SHT_NOBITS | |
5792 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5793 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5794 | || p->p_type == PT_TLS)))) | |
252b5132 | 5795 | { |
b5599592 AM |
5796 | bfd_vma p_start = p->p_paddr; |
5797 | bfd_vma p_end = p_start + p->p_memsz; | |
5798 | bfd_vma s_start = sec->lma; | |
5799 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5800 | |
a2d1e028 L |
5801 | if (adjust != 0 |
5802 | && (s_start < p_end | |
5803 | || p_end < p_start)) | |
252b5132 | 5804 | { |
4eca0228 | 5805 | _bfd_error_handler |
695344c0 | 5806 | /* xgettext:c-format */ |
2dcf00ce AM |
5807 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5808 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5809 | adjust = 0; |
b5599592 | 5810 | sec->lma = p_end; |
1cfb7d1e | 5811 | } |
3ac9b6c9 | 5812 | p->p_memsz += adjust; |
1cfb7d1e | 5813 | |
88967714 AM |
5814 | if (this_hdr->sh_type != SHT_NOBITS) |
5815 | { | |
30fe1832 | 5816 | if (p->p_type == PT_LOAD) |
32812159 | 5817 | { |
30fe1832 AM |
5818 | if (p->p_filesz + adjust < p->p_memsz) |
5819 | { | |
5820 | /* We have a PROGBITS section following NOBITS ones. | |
5821 | Allocate file space for the NOBITS section(s) and | |
5822 | zero it. */ | |
5823 | adjust = p->p_memsz - p->p_filesz; | |
5824 | if (!write_zeros (abfd, off, adjust)) | |
5825 | return FALSE; | |
5826 | } | |
5827 | off += adjust; | |
32812159 | 5828 | } |
88967714 | 5829 | p->p_filesz += adjust; |
252b5132 | 5830 | } |
252b5132 RH |
5831 | } |
5832 | ||
5833 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5834 | { | |
b301b248 AM |
5835 | /* The section at i == 0 is the one that actually contains |
5836 | everything. */ | |
4a938328 MS |
5837 | if (i == 0) |
5838 | { | |
627b32bc | 5839 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5840 | off += this_hdr->sh_size; |
5841 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5842 | p->p_memsz = 0; |
5843 | p->p_align = 1; | |
252b5132 | 5844 | } |
4a938328 | 5845 | else |
252b5132 | 5846 | { |
b301b248 | 5847 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5848 | sec->filepos = 0; |
eea6121a | 5849 | sec->size = 0; |
b301b248 AM |
5850 | sec->flags = 0; |
5851 | continue; | |
252b5132 | 5852 | } |
252b5132 RH |
5853 | } |
5854 | else | |
5855 | { | |
1e951488 | 5856 | if (p->p_type == PT_LOAD) |
b301b248 | 5857 | { |
1e951488 AM |
5858 | this_hdr->sh_offset = sec->filepos = off; |
5859 | if (this_hdr->sh_type != SHT_NOBITS) | |
5860 | off += this_hdr->sh_size; | |
5861 | } | |
5862 | else if (this_hdr->sh_type == SHT_NOBITS | |
5863 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5864 | && this_hdr->sh_offset == 0) | |
5865 | { | |
5866 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5867 | (See _bfd_elf_map_sections_to_segments "Create a | |
5868 | final PT_LOAD".) Set sh_offset to the value it | |
5869 | would have if we had created a zero p_filesz and | |
5870 | p_memsz PT_LOAD header for the section. This | |
5871 | also makes the PT_TLS header have the same | |
5872 | p_offset value. */ | |
5873 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5874 | off, align); | |
5875 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5876 | } |
252b5132 | 5877 | |
02bf8d82 | 5878 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5879 | { |
6a3cd2b4 | 5880 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5881 | /* A load section without SHF_ALLOC is something like |
5882 | a note section in a PT_NOTE segment. These take | |
5883 | file space but are not loaded into memory. */ | |
5884 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5885 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5886 | } |
6a3cd2b4 | 5887 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5888 | { |
6a3cd2b4 AM |
5889 | if (p->p_type == PT_TLS) |
5890 | p->p_memsz += this_hdr->sh_size; | |
5891 | ||
5892 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5893 | normal segments. */ | |
5894 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5895 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5896 | } |
5897 | ||
b10a8ae0 L |
5898 | if (align > p->p_align |
5899 | && !m->p_align_valid | |
5900 | && (p->p_type != PT_LOAD | |
5901 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5902 | p->p_align = align; |
5903 | } | |
5904 | ||
bf988460 | 5905 | if (!m->p_flags_valid) |
252b5132 RH |
5906 | { |
5907 | p->p_flags |= PF_R; | |
02bf8d82 | 5908 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5909 | p->p_flags |= PF_X; |
02bf8d82 | 5910 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5911 | p->p_flags |= PF_W; |
5912 | } | |
5913 | } | |
43a8475c | 5914 | |
bf988460 | 5915 | off -= off_adjust; |
0920dee7 | 5916 | |
30fe1832 AM |
5917 | /* PR ld/20815 - Check that the program header segment, if |
5918 | present, will be loaded into memory. */ | |
5919 | if (p->p_type == PT_PHDR | |
5920 | && phdr_load_seg == NULL | |
5921 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5922 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5923 | { | |
5924 | /* The fix for this error is usually to edit the linker script being | |
5925 | used and set up the program headers manually. Either that or | |
5926 | leave room for the headers at the start of the SECTIONS. */ | |
5927 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5928 | " by LOAD segment"), | |
5929 | abfd); | |
5930 | return FALSE; | |
5931 | } | |
5932 | ||
7c928300 AM |
5933 | /* Check that all sections are in a PT_LOAD segment. |
5934 | Don't check funky gdb generated core files. */ | |
5935 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5936 | { |
5937 | bfd_boolean check_vma = TRUE; | |
5938 | ||
5939 | for (i = 1; i < m->count; i++) | |
5940 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5941 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5942 | ->this_hdr), p) != 0 | |
5943 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5944 | ->this_hdr), p) != 0) | |
0920dee7 | 5945 | { |
9a83a553 AM |
5946 | /* Looks like we have overlays packed into the segment. */ |
5947 | check_vma = FALSE; | |
5948 | break; | |
0920dee7 | 5949 | } |
9a83a553 AM |
5950 | |
5951 | for (i = 0; i < m->count; i++) | |
5952 | { | |
5953 | Elf_Internal_Shdr *this_hdr; | |
5954 | asection *sec; | |
5955 | ||
5956 | sec = m->sections[i]; | |
5957 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5958 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5959 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5960 | { |
4eca0228 | 5961 | _bfd_error_handler |
695344c0 | 5962 | /* xgettext:c-format */ |
871b3ab2 | 5963 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5964 | abfd, sec, j); |
5965 | print_segment_map (m); | |
5966 | } | |
5967 | } | |
5968 | } | |
252b5132 RH |
5969 | } |
5970 | ||
12bd6957 | 5971 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
5972 | |
5973 | if (link_info != NULL | |
5974 | && phdr_load_seg != NULL | |
5975 | && phdr_load_seg->includes_filehdr) | |
5976 | { | |
5977 | /* There is a segment that contains both the file headers and the | |
5978 | program headers, so provide a symbol __ehdr_start pointing there. | |
5979 | A program can use this to examine itself robustly. */ | |
5980 | ||
5981 | struct elf_link_hash_entry *hash | |
5982 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5983 | FALSE, FALSE, TRUE); | |
5984 | /* If the symbol was referenced and not defined, define it. */ | |
5985 | if (hash != NULL | |
5986 | && (hash->root.type == bfd_link_hash_new | |
5987 | || hash->root.type == bfd_link_hash_undefined | |
5988 | || hash->root.type == bfd_link_hash_undefweak | |
5989 | || hash->root.type == bfd_link_hash_common)) | |
5990 | { | |
5991 | asection *s = NULL; | |
5992 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr; | |
5993 | ||
5994 | if (phdr_load_seg->count != 0) | |
5995 | /* The segment contains sections, so use the first one. */ | |
5996 | s = phdr_load_seg->sections[0]; | |
5997 | else | |
5998 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
5999 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6000 | if (m->p_type == PT_LOAD && m->count != 0) | |
6001 | { | |
6002 | s = m->sections[0]; | |
6003 | break; | |
6004 | } | |
6005 | ||
6006 | if (s != NULL) | |
6007 | { | |
6008 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6009 | hash->root.u.def.section = s; | |
6010 | } | |
6011 | else | |
6012 | { | |
6013 | hash->root.u.def.value = filehdr_vaddr; | |
6014 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6015 | } | |
6016 | ||
6017 | hash->root.type = bfd_link_hash_defined; | |
6018 | hash->def_regular = 1; | |
6019 | hash->non_elf = 0; | |
6020 | } | |
6021 | } | |
6022 | ||
f3520d2f AM |
6023 | return TRUE; |
6024 | } | |
6025 | ||
1faa385f NC |
6026 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6027 | is no defined method for detecting such files, so we have to | |
6028 | use heuristics instead. */ | |
6029 | ||
6030 | bfd_boolean | |
6031 | is_debuginfo_file (bfd *abfd) | |
6032 | { | |
6033 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
6034 | return FALSE; | |
6035 | ||
6036 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6037 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6038 | Elf_Internal_Shdr **headerp; | |
6039 | ||
6040 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6041 | { | |
6042 | Elf_Internal_Shdr *header = * headerp; | |
6043 | ||
6044 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6045 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6046 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6047 | && header->sh_type != SHT_NOBITS | |
6048 | && header->sh_type != SHT_NOTE) | |
6049 | return FALSE; | |
6050 | } | |
6051 | ||
6052 | return TRUE; | |
6053 | } | |
6054 | ||
1ff6de03 NA |
6055 | /* Assign file positions for the other sections, except for compressed debugging |
6056 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f AM |
6057 | |
6058 | static bfd_boolean | |
6059 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
6060 | struct bfd_link_info *link_info) | |
6061 | { | |
6062 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6063 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6064 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6065 | Elf_Internal_Phdr *phdrs; |
6066 | Elf_Internal_Phdr *p; | |
6067 | struct elf_segment_map *m; | |
f3520d2f | 6068 | file_ptr off; |
f3520d2f | 6069 | |
5c182d5f | 6070 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6071 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6072 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6073 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6074 | { |
5c182d5f AM |
6075 | Elf_Internal_Shdr *hdr; |
6076 | ||
6077 | hdr = *hdrpp; | |
6078 | if (hdr->bfd_section != NULL | |
252e386e AM |
6079 | && (hdr->bfd_section->filepos != 0 |
6080 | || (hdr->sh_type == SHT_NOBITS | |
6081 | && hdr->contents == NULL))) | |
627b32bc | 6082 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6083 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6084 | { | |
1faa385f NC |
6085 | if (hdr->sh_size != 0 |
6086 | /* PR 24717 - debuginfo files are known to be not strictly | |
6087 | compliant with the ELF standard. In particular they often | |
6088 | have .note.gnu.property sections that are outside of any | |
6089 | loadable segment. This is not a problem for such files, | |
6090 | so do not warn about them. */ | |
6091 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6092 | _bfd_error_handler |
695344c0 | 6093 | /* xgettext:c-format */ |
871b3ab2 | 6094 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6095 | abfd, |
6096 | (hdr->bfd_section == NULL | |
6097 | ? "*unknown*" | |
6098 | : hdr->bfd_section->name)); | |
3ba71138 L |
6099 | /* We don't need to page align empty sections. */ |
6100 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
6101 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
6102 | bed->maxpagesize); | |
6103 | else | |
6104 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
6105 | hdr->sh_addralign); | |
6106 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
6107 | FALSE); | |
6108 | } | |
6109 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6110 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6111 | /* We don't know the offset of these sections yet: their size has |
6112 | not been decided. */ | |
0ce398f1 | 6113 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6114 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6115 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6116 | && abfd->is_linker_output))) | |
12bd6957 | 6117 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6118 | || (elf_symtab_shndx_list (abfd) != NULL |
6119 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6120 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6121 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6122 | hdr->sh_offset = -1; |
6123 | else | |
6124 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f | 6125 | } |
30fe1832 | 6126 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6127 | |
252b5132 RH |
6128 | /* Now that we have set the section file positions, we can set up |
6129 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6130 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6131 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6132 | { |
129af99f | 6133 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6134 | { |
f2731e0c | 6135 | bfd_vma start, end; |
01f7e10c | 6136 | bfd_boolean ok; |
1ea63fd2 | 6137 | |
129af99f | 6138 | if (link_info != NULL) |
8c37241b | 6139 | { |
129af99f | 6140 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6141 | in link_info. Note that there may be padding between |
6142 | relro_start and the first RELRO section. */ | |
6143 | start = link_info->relro_start; | |
6144 | end = link_info->relro_end; | |
6145 | } | |
6146 | else if (m->count != 0) | |
6147 | { | |
6148 | if (!m->p_size_valid) | |
6149 | abort (); | |
6150 | start = m->sections[0]->vma; | |
6151 | end = start + m->p_size; | |
6152 | } | |
6153 | else | |
6154 | { | |
6155 | start = 0; | |
6156 | end = 0; | |
6157 | } | |
6158 | ||
01f7e10c | 6159 | ok = FALSE; |
f2731e0c AM |
6160 | if (start < end) |
6161 | { | |
6162 | struct elf_segment_map *lm; | |
6163 | const Elf_Internal_Phdr *lp; | |
6164 | unsigned int i; | |
6165 | ||
6166 | /* Find a LOAD segment containing a section in the RELRO | |
6167 | segment. */ | |
12bd6957 | 6168 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6169 | lm != NULL; |
6170 | lm = lm->next, lp++) | |
8c37241b JJ |
6171 | { |
6172 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6173 | && lm->count != 0 |
dbc88fc1 AM |
6174 | && (lm->sections[lm->count - 1]->vma |
6175 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
6176 | ? lm->sections[lm->count - 1]->size | |
6177 | : 0)) > start | |
f2731e0c | 6178 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6179 | break; |
6180 | } | |
f2731e0c | 6181 | |
01f7e10c | 6182 | if (lm != NULL) |
129af99f | 6183 | { |
01f7e10c AM |
6184 | /* Find the section starting the RELRO segment. */ |
6185 | for (i = 0; i < lm->count; i++) | |
6186 | { | |
6187 | asection *s = lm->sections[i]; | |
6188 | if (s->vma >= start | |
6189 | && s->vma < end | |
6190 | && s->size != 0) | |
6191 | break; | |
6192 | } | |
6193 | ||
6194 | if (i < lm->count) | |
6195 | { | |
6196 | p->p_vaddr = lm->sections[i]->vma; | |
6197 | p->p_paddr = lm->sections[i]->lma; | |
6198 | p->p_offset = lm->sections[i]->filepos; | |
6199 | p->p_memsz = end - p->p_vaddr; | |
6200 | p->p_filesz = p->p_memsz; | |
6201 | ||
6202 | /* The RELRO segment typically ends a few bytes | |
6203 | into .got.plt but other layouts are possible. | |
6204 | In cases where the end does not match any | |
6205 | loaded section (for instance is in file | |
6206 | padding), trim p_filesz back to correspond to | |
6207 | the end of loaded section contents. */ | |
6208 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6209 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6210 | ||
6211 | /* Preserve the alignment and flags if they are | |
6212 | valid. The gold linker generates RW/4 for | |
6213 | the PT_GNU_RELRO section. It is better for | |
6214 | objcopy/strip to honor these attributes | |
6215 | otherwise gdb will choke when using separate | |
6216 | debug files. */ | |
6217 | if (!m->p_align_valid) | |
6218 | p->p_align = 1; | |
6219 | if (!m->p_flags_valid) | |
6220 | p->p_flags = PF_R; | |
6221 | ok = TRUE; | |
6222 | } | |
129af99f | 6223 | } |
b84a33b5 | 6224 | } |
01f7e10c AM |
6225 | if (link_info != NULL) |
6226 | BFD_ASSERT (ok); | |
6227 | if (!ok) | |
6228 | memset (p, 0, sizeof *p); | |
129af99f | 6229 | } |
04c3a755 NS |
6230 | else if (p->p_type == PT_GNU_STACK) |
6231 | { | |
6232 | if (m->p_size_valid) | |
6233 | p->p_memsz = m->p_size; | |
6234 | } | |
129af99f AS |
6235 | else if (m->count != 0) |
6236 | { | |
e06efbf1 | 6237 | unsigned int i; |
1a9ccd70 | 6238 | |
129af99f AS |
6239 | if (p->p_type != PT_LOAD |
6240 | && (p->p_type != PT_NOTE | |
6241 | || bfd_get_format (abfd) != bfd_core)) | |
6242 | { | |
1a9ccd70 NC |
6243 | /* A user specified segment layout may include a PHDR |
6244 | segment that overlaps with a LOAD segment... */ | |
6245 | if (p->p_type == PT_PHDR) | |
6246 | { | |
6247 | m->count = 0; | |
6248 | continue; | |
6249 | } | |
6250 | ||
c86934ce NC |
6251 | if (m->includes_filehdr || m->includes_phdrs) |
6252 | { | |
b1fa9dd6 | 6253 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6254 | _bfd_error_handler |
871b3ab2 | 6255 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6256 | "and/or program header"), |
6257 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6258 | return FALSE; |
6259 | } | |
129af99f | 6260 | |
86b2281f | 6261 | p->p_filesz = 0; |
129af99f | 6262 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6263 | for (i = m->count; i-- != 0;) |
6264 | { | |
6265 | asection *sect = m->sections[i]; | |
6266 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6267 | if (hdr->sh_type != SHT_NOBITS) | |
6268 | { | |
6269 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6270 | + hdr->sh_size); | |
6271 | break; | |
6272 | } | |
6273 | } | |
129af99f AS |
6274 | } |
6275 | } | |
252b5132 RH |
6276 | } |
6277 | ||
b34976b6 | 6278 | return TRUE; |
252b5132 RH |
6279 | } |
6280 | ||
6a40cf0c NC |
6281 | static elf_section_list * |
6282 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6283 | { | |
6284 | for (;list != NULL; list = list->next) | |
6285 | if (list->ndx == i) | |
6286 | break; | |
6287 | return list; | |
6288 | } | |
6289 | ||
252b5132 RH |
6290 | /* Work out the file positions of all the sections. This is called by |
6291 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6292 | VMAs must be known before this is called. | |
6293 | ||
e0638f70 | 6294 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6295 | "side-channel" data attached to a section to which they apply, and those that |
6296 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6297 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6298 | here, unless they form part of the loadable image. Reloc sections not | |
6299 | assigned here (and compressed debugging sections and CTF sections which | |
6300 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6301 | assign_file_positions_for_relocs. |
252b5132 RH |
6302 | |
6303 | We also don't set the positions of the .symtab and .strtab here. */ | |
6304 | ||
b34976b6 | 6305 | static bfd_boolean |
c84fca4d AO |
6306 | assign_file_positions_except_relocs (bfd *abfd, |
6307 | struct bfd_link_info *link_info) | |
252b5132 | 6308 | { |
5c182d5f AM |
6309 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6310 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6311 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6312 | unsigned int alloc; |
252b5132 RH |
6313 | |
6314 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6315 | && bfd_get_format (abfd) != bfd_core) | |
6316 | { | |
5c182d5f AM |
6317 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6318 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6319 | Elf_Internal_Shdr **hdrpp; |
6320 | unsigned int i; | |
a485e98e | 6321 | file_ptr off; |
252b5132 RH |
6322 | |
6323 | /* Start after the ELF header. */ | |
6324 | off = i_ehdrp->e_ehsize; | |
6325 | ||
6326 | /* We are not creating an executable, which means that we are | |
6327 | not creating a program header, and that the actual order of | |
6328 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6329 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6330 | { |
6331 | Elf_Internal_Shdr *hdr; | |
6332 | ||
6333 | hdr = *hdrpp; | |
e0638f70 AM |
6334 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6335 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6336 | /* Do not assign offsets for these sections yet: we don't know |
6337 | their sizes. */ | |
0ce398f1 | 6338 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6339 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6340 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6341 | && abfd->is_linker_output))) | |
12bd6957 | 6342 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6343 | || (elf_symtab_shndx_list (abfd) != NULL |
6344 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6345 | || i == elf_strtab_sec (abfd) |
6346 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6347 | { |
6348 | hdr->sh_offset = -1; | |
252b5132 | 6349 | } |
9ad5cbcf | 6350 | else |
b34976b6 | 6351 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6352 | } |
a485e98e AM |
6353 | |
6354 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6355 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6356 | } |
6357 | else | |
6358 | { | |
252b5132 | 6359 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6360 | assignment of sections to segments. */ |
f3520d2f AM |
6361 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6362 | return FALSE; | |
6363 | ||
6364 | /* And for non-load sections. */ | |
6365 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6366 | return FALSE; | |
6d6c25c8 | 6367 | } |
f3520d2f | 6368 | |
6d6c25c8 AM |
6369 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
6370 | return FALSE; | |
1a9ccd70 | 6371 | |
6d6c25c8 AM |
6372 | /* Write out the program headers. */ |
6373 | alloc = i_ehdrp->e_phnum; | |
6374 | if (alloc != 0) | |
6375 | { | |
30fe1832 | 6376 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 NC |
6377 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6378 | return FALSE; | |
252b5132 RH |
6379 | } |
6380 | ||
b34976b6 | 6381 | return TRUE; |
252b5132 RH |
6382 | } |
6383 | ||
ed7e9d0b AM |
6384 | bfd_boolean |
6385 | _bfd_elf_init_file_header (bfd *abfd, | |
6386 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6387 | { |
3d540e93 | 6388 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6389 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6390 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6391 | |
6392 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6393 | |
2b0f7ef9 | 6394 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6395 | if (shstrtab == NULL) |
b34976b6 | 6396 | return FALSE; |
252b5132 RH |
6397 | |
6398 | elf_shstrtab (abfd) = shstrtab; | |
6399 | ||
6400 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6401 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6402 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6403 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6404 | ||
6405 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6406 | i_ehdrp->e_ident[EI_DATA] = | |
6407 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6408 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6409 | ||
252b5132 RH |
6410 | if ((abfd->flags & DYNAMIC) != 0) |
6411 | i_ehdrp->e_type = ET_DYN; | |
6412 | else if ((abfd->flags & EXEC_P) != 0) | |
6413 | i_ehdrp->e_type = ET_EXEC; | |
6414 | else if (bfd_get_format (abfd) == bfd_core) | |
6415 | i_ehdrp->e_type = ET_CORE; | |
6416 | else | |
6417 | i_ehdrp->e_type = ET_REL; | |
6418 | ||
6419 | switch (bfd_get_arch (abfd)) | |
6420 | { | |
6421 | case bfd_arch_unknown: | |
6422 | i_ehdrp->e_machine = EM_NONE; | |
6423 | break; | |
aa4f99bb AO |
6424 | |
6425 | /* There used to be a long list of cases here, each one setting | |
6426 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6427 | in the corresponding bfd definition. To avoid duplication, | |
6428 | the switch was removed. Machines that need special handling | |
6429 | can generally do it in elf_backend_final_write_processing(), | |
6430 | unless they need the information earlier than the final write. | |
6431 | Such need can generally be supplied by replacing the tests for | |
6432 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6433 | default: |
9c5bfbb7 AM |
6434 | i_ehdrp->e_machine = bed->elf_machine_code; |
6435 | } | |
aa4f99bb | 6436 | |
252b5132 RH |
6437 | i_ehdrp->e_version = bed->s->ev_current; |
6438 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6439 | ||
c044fabd | 6440 | /* No program header, for now. */ |
252b5132 RH |
6441 | i_ehdrp->e_phoff = 0; |
6442 | i_ehdrp->e_phentsize = 0; | |
6443 | i_ehdrp->e_phnum = 0; | |
6444 | ||
c044fabd | 6445 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6446 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6447 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6448 | ||
252b5132 | 6449 | elf_tdata (abfd)->symtab_hdr.sh_name = |
b34976b6 | 6450 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6451 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6452 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6453 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6454 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6455 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6456 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6457 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6458 | return FALSE; |
252b5132 | 6459 | |
b34976b6 | 6460 | return TRUE; |
252b5132 RH |
6461 | } |
6462 | ||
6d6c25c8 AM |
6463 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6464 | ||
6465 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6466 | ascending order, as per the ELF spec. But this breaks some programs, | |
6467 | including the Linux kernel. But really either the spec should be | |
6468 | changed or the programs updated. */ | |
6469 | ||
6470 | bfd_boolean | |
6471 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) | |
6472 | { | |
6473 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6474 | { | |
6475 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6476 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6477 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6478 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6479 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6480 | ||
6481 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6482 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6483 | for (; segment < end_segment; segment++) | |
6484 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6485 | p_vaddr = segment->p_vaddr; | |
6486 | ||
6487 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6488 | segments is non-zero. */ | |
6489 | if (p_vaddr) | |
6490 | i_ehdrp->e_type = ET_EXEC; | |
6491 | } | |
6492 | return TRUE; | |
6493 | } | |
6494 | ||
252b5132 | 6495 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6496 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6497 | |
0ce398f1 L |
6498 | static bfd_boolean |
6499 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6500 | { |
6501 | file_ptr off; | |
e06efbf1 | 6502 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6503 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6504 | Elf_Internal_Ehdr *i_ehdrp; |
6505 | const struct elf_backend_data *bed; | |
252b5132 | 6506 | |
12bd6957 | 6507 | off = elf_next_file_pos (abfd); |
252b5132 | 6508 | |
e06efbf1 L |
6509 | shdrpp = elf_elfsections (abfd); |
6510 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6511 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6512 | { |
252b5132 | 6513 | shdrp = *shdrpp; |
0ce398f1 L |
6514 | if (shdrp->sh_offset == -1) |
6515 | { | |
3e19fb8f | 6516 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6517 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6518 | || shdrp->sh_type == SHT_RELA); | |
1ff6de03 | 6519 | bfd_boolean is_ctf = sec && bfd_section_is_ctf (sec); |
0ce398f1 | 6520 | if (is_rel |
1ff6de03 | 6521 | || is_ctf |
3e19fb8f | 6522 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6523 | { |
1ff6de03 | 6524 | if (!is_rel && !is_ctf) |
0ce398f1 | 6525 | { |
3e19fb8f L |
6526 | const char *name = sec->name; |
6527 | struct bfd_elf_section_data *d; | |
6528 | ||
0ce398f1 | 6529 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6530 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6531 | shdrp->contents)) |
6532 | return FALSE; | |
3e19fb8f L |
6533 | |
6534 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6535 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6536 | { | |
6537 | /* If section is compressed with zlib-gnu, convert | |
6538 | section name from .debug_* to .zdebug_*. */ | |
6539 | char *new_name | |
6540 | = convert_debug_to_zdebug (abfd, name); | |
6541 | if (new_name == NULL) | |
6542 | return FALSE; | |
6543 | name = new_name; | |
6544 | } | |
dd905818 | 6545 | /* Add section name to section name section. */ |
3e19fb8f L |
6546 | if (shdrp->sh_name != (unsigned int) -1) |
6547 | abort (); | |
6548 | shdrp->sh_name | |
6549 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6550 | name, FALSE); | |
6551 | d = elf_section_data (sec); | |
6552 | ||
dd905818 | 6553 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6554 | if (d->rel.hdr |
6555 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6556 | d->rel.hdr, | |
6557 | name, FALSE)) | |
6558 | return FALSE; | |
6559 | if (d->rela.hdr | |
6560 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6561 | d->rela.hdr, | |
91cb26da | 6562 | name, TRUE)) |
3e19fb8f L |
6563 | return FALSE; |
6564 | ||
0ce398f1 | 6565 | /* Update section size and contents. */ |
3e19fb8f L |
6566 | shdrp->sh_size = sec->size; |
6567 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6568 | shdrp->bfd_section->contents = NULL; |
6569 | } | |
1ff6de03 NA |
6570 | else if (is_ctf) |
6571 | { | |
6572 | /* Update section size and contents. */ | |
6573 | shdrp->sh_size = sec->size; | |
6574 | shdrp->contents = sec->contents; | |
6575 | } | |
6576 | ||
0ce398f1 L |
6577 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6578 | off, | |
6579 | TRUE); | |
6580 | } | |
6581 | } | |
252b5132 RH |
6582 | } |
6583 | ||
3e19fb8f L |
6584 | /* Place section name section after DWARF debug sections have been |
6585 | compressed. */ | |
6586 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6587 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6588 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6589 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6590 | ||
6591 | /* Place the section headers. */ | |
a485e98e AM |
6592 | i_ehdrp = elf_elfheader (abfd); |
6593 | bed = get_elf_backend_data (abfd); | |
6594 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6595 | i_ehdrp->e_shoff = off; | |
6596 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6597 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6598 | |
6599 | return TRUE; | |
252b5132 RH |
6600 | } |
6601 | ||
b34976b6 | 6602 | bfd_boolean |
217aa764 | 6603 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6604 | { |
9c5bfbb7 | 6605 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6606 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6607 | bfd_boolean failed; |
9ad5cbcf | 6608 | unsigned int count, num_sec; |
30e8ee25 | 6609 | struct elf_obj_tdata *t; |
252b5132 RH |
6610 | |
6611 | if (! abfd->output_has_begun | |
217aa764 | 6612 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6613 | return FALSE; |
db727370 JL |
6614 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6615 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6616 | sections, and modification of existing section sizes was restricted. | |
6617 | This means the ELF header, program headers and section headers can't have | |
6618 | changed. | |
6619 | If the contents of any sections has been modified, then those changes have | |
6620 | already been written to the BFD. */ | |
6621 | else if (abfd->direction == both_direction) | |
6622 | { | |
6623 | BFD_ASSERT (abfd->output_has_begun); | |
6624 | return TRUE; | |
6625 | } | |
252b5132 RH |
6626 | |
6627 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6628 | |
b34976b6 | 6629 | failed = FALSE; |
252b5132 RH |
6630 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6631 | if (failed) | |
b34976b6 | 6632 | return FALSE; |
252b5132 | 6633 | |
0ce398f1 L |
6634 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6635 | return FALSE; | |
252b5132 | 6636 | |
c044fabd | 6637 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6638 | num_sec = elf_numsections (abfd); |
6639 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6640 | { |
3e19fb8f L |
6641 | i_shdrp[count]->sh_name |
6642 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6643 | i_shdrp[count]->sh_name); | |
252b5132 | 6644 | if (bed->elf_backend_section_processing) |
75506100 MR |
6645 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6646 | return FALSE; | |
252b5132 RH |
6647 | if (i_shdrp[count]->contents) |
6648 | { | |
dc810e39 AM |
6649 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6650 | ||
252b5132 | 6651 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6652 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6653 | return FALSE; |
252b5132 RH |
6654 | } |
6655 | } | |
6656 | ||
6657 | /* Write out the section header names. */ | |
30e8ee25 | 6658 | t = elf_tdata (abfd); |
26ae6d5e | 6659 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6660 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6661 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6662 | return FALSE; |
252b5132 | 6663 | |
cc364be6 AM |
6664 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
6665 | return FALSE; | |
252b5132 | 6666 | |
ff59fc36 RM |
6667 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6668 | return FALSE; | |
6669 | ||
6670 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6671 | if (t->o->build_id.after_write_object_contents != NULL) |
6672 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6673 | |
6674 | return TRUE; | |
252b5132 RH |
6675 | } |
6676 | ||
b34976b6 | 6677 | bfd_boolean |
217aa764 | 6678 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6679 | { |
c044fabd | 6680 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6681 | return _bfd_elf_write_object_contents (abfd); |
6682 | } | |
c044fabd KH |
6683 | |
6684 | /* Given a section, search the header to find them. */ | |
6685 | ||
cb33740c | 6686 | unsigned int |
198beae2 | 6687 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6688 | { |
9c5bfbb7 | 6689 | const struct elf_backend_data *bed; |
91d6fa6a | 6690 | unsigned int sec_index; |
252b5132 | 6691 | |
9ad5cbcf AM |
6692 | if (elf_section_data (asect) != NULL |
6693 | && elf_section_data (asect)->this_idx != 0) | |
6694 | return elf_section_data (asect)->this_idx; | |
6695 | ||
6696 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6697 | sec_index = SHN_ABS; |
af746e92 | 6698 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6699 | sec_index = SHN_COMMON; |
af746e92 | 6700 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6701 | sec_index = SHN_UNDEF; |
af746e92 | 6702 | else |
91d6fa6a | 6703 | sec_index = SHN_BAD; |
252b5132 | 6704 | |
af746e92 | 6705 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6706 | if (bed->elf_backend_section_from_bfd_section) |
6707 | { | |
91d6fa6a | 6708 | int retval = sec_index; |
9ad5cbcf | 6709 | |
af746e92 AM |
6710 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6711 | return retval; | |
252b5132 RH |
6712 | } |
6713 | ||
91d6fa6a | 6714 | if (sec_index == SHN_BAD) |
af746e92 | 6715 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6716 | |
91d6fa6a | 6717 | return sec_index; |
252b5132 RH |
6718 | } |
6719 | ||
6720 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6721 | on error. */ | |
6722 | ||
6723 | int | |
217aa764 | 6724 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6725 | { |
6726 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6727 | int idx; | |
6728 | flagword flags = asym_ptr->flags; | |
6729 | ||
6730 | /* When gas creates relocations against local labels, it creates its | |
6731 | own symbol for the section, but does put the symbol into the | |
6732 | symbol chain, so udata is 0. When the linker is generating | |
6733 | relocatable output, this section symbol may be for one of the | |
6734 | input sections rather than the output section. */ | |
6735 | if (asym_ptr->udata.i == 0 | |
6736 | && (flags & BSF_SECTION_SYM) | |
6737 | && asym_ptr->section) | |
6738 | { | |
5372391b | 6739 | asection *sec; |
252b5132 RH |
6740 | int indx; |
6741 | ||
5372391b AM |
6742 | sec = asym_ptr->section; |
6743 | if (sec->owner != abfd && sec->output_section != NULL) | |
6744 | sec = sec->output_section; | |
6745 | if (sec->owner == abfd | |
6746 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6747 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6748 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6749 | } | |
6750 | ||
6751 | idx = asym_ptr->udata.i; | |
6752 | ||
6753 | if (idx == 0) | |
6754 | { | |
6755 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6756 | which is used in a relocation entry. */ |
4eca0228 | 6757 | _bfd_error_handler |
695344c0 | 6758 | /* xgettext:c-format */ |
871b3ab2 | 6759 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6760 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6761 | bfd_set_error (bfd_error_no_symbols); |
6762 | return -1; | |
6763 | } | |
6764 | ||
6765 | #if DEBUG & 4 | |
6766 | { | |
6767 | fprintf (stderr, | |
cd9af601 AM |
6768 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6769 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6770 | fflush (stderr); |
6771 | } | |
6772 | #endif | |
6773 | ||
6774 | return idx; | |
6775 | } | |
6776 | ||
84d1d650 | 6777 | /* Rewrite program header information. */ |
252b5132 | 6778 | |
b34976b6 | 6779 | static bfd_boolean |
84d1d650 | 6780 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6781 | { |
b34976b6 AM |
6782 | Elf_Internal_Ehdr *iehdr; |
6783 | struct elf_segment_map *map; | |
6784 | struct elf_segment_map *map_first; | |
6785 | struct elf_segment_map **pointer_to_map; | |
6786 | Elf_Internal_Phdr *segment; | |
6787 | asection *section; | |
6788 | unsigned int i; | |
6789 | unsigned int num_segments; | |
6790 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6791 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6792 | bfd_vma maxpagesize; |
6793 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6794 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6795 | const struct elf_backend_data *bed; |
bc67d8a6 | 6796 | |
caf47ea6 | 6797 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6798 | iehdr = elf_elfheader (ibfd); |
6799 | ||
bc67d8a6 | 6800 | map_first = NULL; |
c044fabd | 6801 | pointer_to_map = &map_first; |
252b5132 RH |
6802 | |
6803 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6804 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6805 | ||
6806 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6807 | #define SEGMENT_END(segment, start) \ |
6808 | (start + (segment->p_memsz > segment->p_filesz \ | |
6809 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6810 | |
eecdbe52 JJ |
6811 | #define SECTION_SIZE(section, segment) \ |
6812 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6813 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6814 | ? section->size : 0) |
eecdbe52 | 6815 | |
b34976b6 | 6816 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6817 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6818 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6819 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6820 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6821 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6822 | |
b34976b6 | 6823 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6824 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6825 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6826 | (section->lma >= base \ | |
beab4532 | 6827 | && (section->lma + SECTION_SIZE (section, segment) >= section->lma) \ |
eecdbe52 | 6828 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6829 | <= SEGMENT_END (segment, base))) |
252b5132 | 6830 | |
0efc80c8 L |
6831 | /* Handle PT_NOTE segment. */ |
6832 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6833 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6834 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6835 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6836 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6837 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6838 | |
0efc80c8 L |
6839 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6840 | etc. */ | |
6841 | #define IS_COREFILE_NOTE(p, s) \ | |
6842 | (IS_NOTE (p, s) \ | |
6843 | && bfd_get_format (ibfd) == bfd_core \ | |
6844 | && s->vma == 0 \ | |
6845 | && s->lma == 0) | |
6846 | ||
252b5132 RH |
6847 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6848 | linker, which generates a PT_INTERP section with p_vaddr and | |
6849 | p_memsz set to 0. */ | |
aecc8f8a AM |
6850 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6851 | (p->p_vaddr == 0 \ | |
6852 | && p->p_paddr == 0 \ | |
6853 | && p->p_memsz == 0 \ | |
6854 | && p->p_filesz > 0 \ | |
6855 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6856 | && s->size > 0 \ |
aecc8f8a | 6857 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6858 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6859 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6860 | |
bc67d8a6 NC |
6861 | /* Decide if the given section should be included in the given segment. |
6862 | A section will be included if: | |
f5ffc919 | 6863 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6864 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6865 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6866 | segment. |
bc67d8a6 | 6867 | 3. There is an output section associated with it, |
eecdbe52 | 6868 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6869 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6870 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6871 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6872 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6873 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6874 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6875 | ((((segment->p_paddr \ |
6876 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6877 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6878 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6879 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6880 | && segment->p_type != PT_GNU_STACK \ |
6881 | && (segment->p_type != PT_TLS \ | |
6882 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6883 | && (segment->p_type == PT_LOAD \ | |
6884 | || segment->p_type == PT_TLS \ | |
6885 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6886 | && (segment->p_type != PT_DYNAMIC \ | |
6887 | || SECTION_SIZE (section, segment) > 0 \ | |
6888 | || (segment->p_paddr \ | |
6889 | ? segment->p_paddr != section->lma \ | |
6890 | : segment->p_vaddr != section->vma) \ | |
fd361982 | 6891 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6892 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6893 | |
9f17e2a6 L |
6894 | /* If the output section of a section in the input segment is NULL, |
6895 | it is removed from the corresponding output segment. */ | |
6896 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6897 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6898 | && section->output_section != NULL) | |
6899 | ||
b34976b6 | 6900 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6901 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6902 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6903 | ||
6904 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6905 | their VMA address ranges and their LMA address ranges overlap. | |
6906 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6907 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6908 | to the same VMA range, but with the .data section mapped to a different | |
6909 | LMA. */ | |
aecc8f8a | 6910 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6911 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6912 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6913 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6914 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6915 | |
6916 | /* Initialise the segment mark field. */ | |
6917 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6918 | section->segment_mark = FALSE; |
bc67d8a6 | 6919 | |
5c44b38e AM |
6920 | /* The Solaris linker creates program headers in which all the |
6921 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6922 | file, we get confused. Check for this case, and if we find it | |
6923 | don't set the p_paddr_valid fields. */ | |
6924 | p_paddr_valid = FALSE; | |
6925 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6926 | i < num_segments; | |
6927 | i++, segment++) | |
6928 | if (segment->p_paddr != 0) | |
6929 | { | |
6930 | p_paddr_valid = TRUE; | |
6931 | break; | |
6932 | } | |
6933 | ||
252b5132 | 6934 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6935 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6936 | in the loadable segments. These can be created by weird |
aecc8f8a | 6937 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6938 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6939 | i < num_segments; | |
c044fabd | 6940 | i++, segment++) |
252b5132 | 6941 | { |
252b5132 | 6942 | unsigned int j; |
c044fabd | 6943 | Elf_Internal_Phdr *segment2; |
252b5132 | 6944 | |
aecc8f8a AM |
6945 | if (segment->p_type == PT_INTERP) |
6946 | for (section = ibfd->sections; section; section = section->next) | |
6947 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6948 | { | |
6949 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6950 | assignment code will work. */ |
aecc8f8a AM |
6951 | segment->p_vaddr = section->vma; |
6952 | break; | |
6953 | } | |
6954 | ||
bc67d8a6 | 6955 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6956 | { |
6957 | /* Remove PT_GNU_RELRO segment. */ | |
6958 | if (segment->p_type == PT_GNU_RELRO) | |
6959 | segment->p_type = PT_NULL; | |
6960 | continue; | |
6961 | } | |
c044fabd | 6962 | |
bc67d8a6 | 6963 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6964 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6965 | { |
6966 | bfd_signed_vma extra_length; | |
c044fabd | 6967 | |
bc67d8a6 | 6968 | if (segment2->p_type != PT_LOAD |
0067a569 | 6969 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6970 | continue; |
c044fabd | 6971 | |
bc67d8a6 NC |
6972 | /* Merge the two segments together. */ |
6973 | if (segment2->p_vaddr < segment->p_vaddr) | |
6974 | { | |
c044fabd | 6975 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6976 | SEGMENT. */ |
0067a569 AM |
6977 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6978 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6979 | |
bc67d8a6 NC |
6980 | if (extra_length > 0) |
6981 | { | |
0067a569 | 6982 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6983 | segment2->p_filesz += extra_length; |
6984 | } | |
c044fabd | 6985 | |
bc67d8a6 | 6986 | segment->p_type = PT_NULL; |
c044fabd | 6987 | |
bc67d8a6 NC |
6988 | /* Since we have deleted P we must restart the outer loop. */ |
6989 | i = 0; | |
6990 | segment = elf_tdata (ibfd)->phdr; | |
6991 | break; | |
6992 | } | |
6993 | else | |
6994 | { | |
c044fabd | 6995 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6996 | SEGMENT2. */ |
0067a569 AM |
6997 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6998 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6999 | |
bc67d8a6 NC |
7000 | if (extra_length > 0) |
7001 | { | |
0067a569 | 7002 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7003 | segment->p_filesz += extra_length; |
7004 | } | |
c044fabd | 7005 | |
bc67d8a6 NC |
7006 | segment2->p_type = PT_NULL; |
7007 | } | |
7008 | } | |
7009 | } | |
c044fabd | 7010 | |
bc67d8a6 NC |
7011 | /* The second scan attempts to assign sections to segments. */ |
7012 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7013 | i < num_segments; | |
0067a569 | 7014 | i++, segment++) |
bc67d8a6 | 7015 | { |
0067a569 AM |
7016 | unsigned int section_count; |
7017 | asection **sections; | |
7018 | asection *output_section; | |
7019 | unsigned int isec; | |
9933dc52 AM |
7020 | asection *matching_lma; |
7021 | asection *suggested_lma; | |
0067a569 | 7022 | unsigned int j; |
dc810e39 | 7023 | bfd_size_type amt; |
0067a569 | 7024 | asection *first_section; |
bc67d8a6 NC |
7025 | |
7026 | if (segment->p_type == PT_NULL) | |
7027 | continue; | |
c044fabd | 7028 | |
9f17e2a6 | 7029 | first_section = NULL; |
bc67d8a6 | 7030 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7031 | for (section = ibfd->sections, section_count = 0; |
7032 | section != NULL; | |
7033 | section = section->next) | |
9f17e2a6 L |
7034 | { |
7035 | /* Find the first section in the input segment, which may be | |
7036 | removed from the corresponding output segment. */ | |
7037 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
7038 | { | |
7039 | if (first_section == NULL) | |
7040 | first_section = section; | |
7041 | if (section->output_section != NULL) | |
7042 | ++section_count; | |
7043 | } | |
7044 | } | |
811072d8 | 7045 | |
b5f852ea NC |
7046 | /* Allocate a segment map big enough to contain |
7047 | all of the sections we have selected. */ | |
00bee008 AM |
7048 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7049 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 7050 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7051 | if (map == NULL) |
b34976b6 | 7052 | return FALSE; |
252b5132 RH |
7053 | |
7054 | /* Initialise the fields of the segment map. Default to | |
7055 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7056 | map->next = NULL; |
7057 | map->p_type = segment->p_type; | |
7058 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7059 | map->p_flags_valid = 1; |
55d55ac7 | 7060 | |
9f17e2a6 L |
7061 | /* If the first section in the input segment is removed, there is |
7062 | no need to preserve segment physical address in the corresponding | |
7063 | output segment. */ | |
945c025a | 7064 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7065 | { |
7066 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7067 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7068 | } |
252b5132 RH |
7069 | |
7070 | /* Determine if this segment contains the ELF file header | |
7071 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7072 | map->includes_filehdr = (segment->p_offset == 0 |
7073 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7074 | map->includes_phdrs = 0; |
252b5132 | 7075 | |
0067a569 | 7076 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7077 | { |
bc67d8a6 NC |
7078 | map->includes_phdrs = |
7079 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7080 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7081 | >= ((bfd_vma) iehdr->e_phoff |
7082 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7083 | |
bc67d8a6 | 7084 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 7085 | phdr_included = TRUE; |
252b5132 RH |
7086 | } |
7087 | ||
bc67d8a6 | 7088 | if (section_count == 0) |
252b5132 RH |
7089 | { |
7090 | /* Special segments, such as the PT_PHDR segment, may contain | |
7091 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7092 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7093 | a warning is produced. |
f98450c6 NC |
7094 | There is however the valid use case of embedded systems which |
7095 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7096 | flash memory with zeros. No warning is shown for that case. */ | |
7097 | if (segment->p_type == PT_LOAD | |
7098 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7099 | /* xgettext:c-format */ | |
9793eb77 AM |
7100 | _bfd_error_handler |
7101 | (_("%pB: warning: empty loadable segment detected" | |
7102 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7103 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7104 | |
5d695627 | 7105 | map->p_vaddr_offset = segment->p_vaddr; |
bc67d8a6 | 7106 | map->count = 0; |
c044fabd KH |
7107 | *pointer_to_map = map; |
7108 | pointer_to_map = &map->next; | |
252b5132 RH |
7109 | |
7110 | continue; | |
7111 | } | |
7112 | ||
7113 | /* Now scan the sections in the input BFD again and attempt | |
7114 | to add their corresponding output sections to the segment map. | |
7115 | The problem here is how to handle an output section which has | |
7116 | been moved (ie had its LMA changed). There are four possibilities: | |
7117 | ||
7118 | 1. None of the sections have been moved. | |
7119 | In this case we can continue to use the segment LMA from the | |
7120 | input BFD. | |
7121 | ||
7122 | 2. All of the sections have been moved by the same amount. | |
7123 | In this case we can change the segment's LMA to match the LMA | |
7124 | of the first section. | |
7125 | ||
7126 | 3. Some of the sections have been moved, others have not. | |
7127 | In this case those sections which have not been moved can be | |
7128 | placed in the current segment which will have to have its size, | |
7129 | and possibly its LMA changed, and a new segment or segments will | |
7130 | have to be created to contain the other sections. | |
7131 | ||
b5f852ea | 7132 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7133 | In this case we can change the segment's LMA to match the LMA |
7134 | of the first section and we will have to create a new segment | |
7135 | or segments to contain the other sections. | |
7136 | ||
7137 | In order to save time, we allocate an array to hold the section | |
7138 | pointers that we are interested in. As these sections get assigned | |
7139 | to a segment, they are removed from this array. */ | |
7140 | ||
a50b1753 | 7141 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 7142 | if (sections == NULL) |
b34976b6 | 7143 | return FALSE; |
252b5132 RH |
7144 | |
7145 | /* Step One: Scan for segment vs section LMA conflicts. | |
7146 | Also add the sections to the section array allocated above. | |
7147 | Also add the sections to the current segment. In the common | |
7148 | case, where the sections have not been moved, this means that | |
7149 | we have completely filled the segment, and there is nothing | |
7150 | more to do. */ | |
252b5132 | 7151 | isec = 0; |
9933dc52 AM |
7152 | matching_lma = NULL; |
7153 | suggested_lma = NULL; | |
252b5132 | 7154 | |
461c4b2e | 7155 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7156 | section != NULL; |
7157 | section = section->next) | |
252b5132 | 7158 | { |
caf47ea6 | 7159 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 7160 | { |
bc67d8a6 NC |
7161 | output_section = section->output_section; |
7162 | ||
0067a569 | 7163 | sections[j++] = section; |
252b5132 RH |
7164 | |
7165 | /* The Solaris native linker always sets p_paddr to 0. | |
7166 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7167 | correct value. Note - some backends require that |
7168 | p_paddr be left as zero. */ | |
5c44b38e | 7169 | if (!p_paddr_valid |
4455705d | 7170 | && segment->p_vaddr != 0 |
0067a569 | 7171 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7172 | && isec == 0 |
bc67d8a6 | 7173 | && output_section->lma != 0 |
9933dc52 AM |
7174 | && (align_power (segment->p_vaddr |
7175 | + (map->includes_filehdr | |
7176 | ? iehdr->e_ehsize : 0) | |
7177 | + (map->includes_phdrs | |
7178 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7179 | : 0), | |
7180 | output_section->alignment_power) | |
7181 | == output_section->vma)) | |
bc67d8a6 | 7182 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7183 | |
7184 | /* Match up the physical address of the segment with the | |
7185 | LMA address of the output section. */ | |
bc67d8a6 | 7186 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 7187 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
7188 | || (bed->want_p_paddr_set_to_zero |
7189 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 7190 | { |
9933dc52 AM |
7191 | if (matching_lma == NULL |
7192 | || output_section->lma < matching_lma->lma) | |
7193 | matching_lma = output_section; | |
252b5132 RH |
7194 | |
7195 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7196 | then it does not overlap any other section within that |
252b5132 | 7197 | segment. */ |
0067a569 AM |
7198 | map->sections[isec++] = output_section; |
7199 | } | |
9933dc52 AM |
7200 | else if (suggested_lma == NULL) |
7201 | suggested_lma = output_section; | |
147d51c2 L |
7202 | |
7203 | if (j == section_count) | |
7204 | break; | |
252b5132 RH |
7205 | } |
7206 | } | |
7207 | ||
bc67d8a6 | 7208 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7209 | |
7210 | /* Step Two: Adjust the physical address of the current segment, | |
7211 | if necessary. */ | |
bc67d8a6 | 7212 | if (isec == section_count) |
252b5132 RH |
7213 | { |
7214 | /* All of the sections fitted within the segment as currently | |
7215 | specified. This is the default case. Add the segment to | |
7216 | the list of built segments and carry on to process the next | |
7217 | program header in the input BFD. */ | |
bc67d8a6 | 7218 | map->count = section_count; |
c044fabd KH |
7219 | *pointer_to_map = map; |
7220 | pointer_to_map = &map->next; | |
08a40648 | 7221 | |
5c44b38e | 7222 | if (p_paddr_valid |
30fe1832 AM |
7223 | && !bed->want_p_paddr_set_to_zero) |
7224 | { | |
7225 | bfd_vma hdr_size = 0; | |
7226 | if (map->includes_filehdr) | |
7227 | hdr_size = iehdr->e_ehsize; | |
7228 | if (map->includes_phdrs) | |
7229 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7230 | ||
7231 | /* Account for padding before the first section in the | |
7232 | segment. */ | |
7233 | map->p_vaddr_offset = map->p_paddr + hdr_size - matching_lma->lma; | |
7234 | } | |
08a40648 | 7235 | |
252b5132 RH |
7236 | free (sections); |
7237 | continue; | |
7238 | } | |
252b5132 RH |
7239 | else |
7240 | { | |
9933dc52 AM |
7241 | /* Change the current segment's physical address to match |
7242 | the LMA of the first section that fitted, or if no | |
7243 | section fitted, the first section. */ | |
7244 | if (matching_lma == NULL) | |
7245 | matching_lma = suggested_lma; | |
7246 | ||
7247 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7248 | |
bc67d8a6 NC |
7249 | /* Offset the segment physical address from the lma |
7250 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7251 | if (map->includes_phdrs) |
010c8431 | 7252 | { |
9933dc52 AM |
7253 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7254 | ||
7255 | /* iehdr->e_phnum is just an estimate of the number | |
7256 | of program headers that we will need. Make a note | |
7257 | here of the number we used and the segment we chose | |
7258 | to hold these headers, so that we can adjust the | |
7259 | offset when we know the correct value. */ | |
7260 | phdr_adjust_num = iehdr->e_phnum; | |
7261 | phdr_adjust_seg = map; | |
010c8431 | 7262 | } |
252b5132 | 7263 | |
9933dc52 | 7264 | if (map->includes_filehdr) |
bc67d8a6 | 7265 | { |
9933dc52 AM |
7266 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7267 | map->p_paddr -= iehdr->e_ehsize; | |
7268 | /* We've subtracted off the size of headers from the | |
7269 | first section lma, but there may have been some | |
7270 | alignment padding before that section too. Try to | |
7271 | account for that by adjusting the segment lma down to | |
7272 | the same alignment. */ | |
7273 | if (segment->p_align != 0 && segment->p_align < align) | |
7274 | align = segment->p_align; | |
7275 | map->p_paddr &= -align; | |
bc67d8a6 | 7276 | } |
252b5132 RH |
7277 | } |
7278 | ||
7279 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7280 | those that fit to the current segment and removing them from the |
252b5132 RH |
7281 | sections array; but making sure not to leave large gaps. Once all |
7282 | possible sections have been assigned to the current segment it is | |
7283 | added to the list of built segments and if sections still remain | |
7284 | to be assigned, a new segment is constructed before repeating | |
7285 | the loop. */ | |
7286 | isec = 0; | |
7287 | do | |
7288 | { | |
bc67d8a6 | 7289 | map->count = 0; |
9933dc52 | 7290 | suggested_lma = NULL; |
252b5132 RH |
7291 | |
7292 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7293 | for (j = 0; j < section_count; j++) |
252b5132 | 7294 | { |
bc67d8a6 | 7295 | section = sections[j]; |
252b5132 | 7296 | |
bc67d8a6 | 7297 | if (section == NULL) |
252b5132 RH |
7298 | continue; |
7299 | ||
bc67d8a6 | 7300 | output_section = section->output_section; |
252b5132 | 7301 | |
bc67d8a6 | 7302 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7303 | |
bc67d8a6 NC |
7304 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7305 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7306 | { |
bc67d8a6 | 7307 | if (map->count == 0) |
252b5132 RH |
7308 | { |
7309 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7310 | the beginning of the segment, then something is |
7311 | wrong. */ | |
9933dc52 AM |
7312 | if (align_power (map->p_paddr |
7313 | + (map->includes_filehdr | |
7314 | ? iehdr->e_ehsize : 0) | |
7315 | + (map->includes_phdrs | |
7316 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7317 | : 0), | |
7318 | output_section->alignment_power) | |
7319 | != output_section->lma) | |
9aea1e31 | 7320 | goto sorry; |
252b5132 RH |
7321 | } |
7322 | else | |
7323 | { | |
0067a569 | 7324 | asection *prev_sec; |
252b5132 | 7325 | |
bc67d8a6 | 7326 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7327 | |
7328 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7329 | and the start of this section is more than |
7330 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7331 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7332 | maxpagesize) |
caf47ea6 | 7333 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7334 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7335 | > output_section->lma)) |
252b5132 | 7336 | { |
9933dc52 AM |
7337 | if (suggested_lma == NULL) |
7338 | suggested_lma = output_section; | |
252b5132 RH |
7339 | |
7340 | continue; | |
7341 | } | |
7342 | } | |
7343 | ||
bc67d8a6 | 7344 | map->sections[map->count++] = output_section; |
252b5132 RH |
7345 | ++isec; |
7346 | sections[j] = NULL; | |
9933dc52 AM |
7347 | if (segment->p_type == PT_LOAD) |
7348 | section->segment_mark = TRUE; | |
0067a569 | 7349 | } |
9933dc52 AM |
7350 | else if (suggested_lma == NULL) |
7351 | suggested_lma = output_section; | |
252b5132 RH |
7352 | } |
7353 | ||
beab4532 NC |
7354 | /* PR 23932. A corrupt input file may contain sections that cannot |
7355 | be assigned to any segment - because for example they have a | |
7356 | negative size - or segments that do not contain any sections. */ | |
7357 | if (map->count == 0) | |
7358 | { | |
9aea1e31 AM |
7359 | sorry: |
7360 | bfd_set_error (bfd_error_sorry); | |
beab4532 NC |
7361 | free (sections); |
7362 | return FALSE; | |
7363 | } | |
252b5132 RH |
7364 | |
7365 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7366 | *pointer_to_map = map; |
7367 | pointer_to_map = &map->next; | |
252b5132 | 7368 | |
bc67d8a6 | 7369 | if (isec < section_count) |
252b5132 RH |
7370 | { |
7371 | /* We still have not allocated all of the sections to | |
7372 | segments. Create a new segment here, initialise it | |
7373 | and carry on looping. */ | |
00bee008 AM |
7374 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7375 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
5964fc3a | 7376 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7377 | if (map == NULL) |
5ed6aba4 NC |
7378 | { |
7379 | free (sections); | |
7380 | return FALSE; | |
7381 | } | |
252b5132 RH |
7382 | |
7383 | /* Initialise the fields of the segment map. Set the physical | |
7384 | physical address to the LMA of the first section that has | |
7385 | not yet been assigned. */ | |
0067a569 AM |
7386 | map->next = NULL; |
7387 | map->p_type = segment->p_type; | |
7388 | map->p_flags = segment->p_flags; | |
7389 | map->p_flags_valid = 1; | |
9933dc52 | 7390 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7391 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7392 | map->includes_filehdr = 0; |
0067a569 | 7393 | map->includes_phdrs = 0; |
252b5132 RH |
7394 | } |
7395 | } | |
bc67d8a6 | 7396 | while (isec < section_count); |
252b5132 RH |
7397 | |
7398 | free (sections); | |
7399 | } | |
7400 | ||
12bd6957 | 7401 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7402 | |
7403 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7404 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7405 | the offset if necessary. */ |
7406 | if (phdr_adjust_seg != NULL) | |
7407 | { | |
7408 | unsigned int count; | |
c044fabd | 7409 | |
bc67d8a6 | 7410 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7411 | count++; |
252b5132 | 7412 | |
bc67d8a6 NC |
7413 | if (count > phdr_adjust_num) |
7414 | phdr_adjust_seg->p_paddr | |
7415 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7416 | |
7417 | for (map = map_first; map != NULL; map = map->next) | |
7418 | if (map->p_type == PT_PHDR) | |
7419 | { | |
7420 | bfd_vma adjust | |
7421 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7422 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7423 | break; | |
7424 | } | |
bc67d8a6 | 7425 | } |
c044fabd | 7426 | |
bc67d8a6 | 7427 | #undef SEGMENT_END |
eecdbe52 | 7428 | #undef SECTION_SIZE |
bc67d8a6 NC |
7429 | #undef IS_CONTAINED_BY_VMA |
7430 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7431 | #undef IS_NOTE |
252b5132 | 7432 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7433 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7434 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7435 | #undef INCLUDE_SECTION_IN_SEGMENT |
7436 | #undef SEGMENT_AFTER_SEGMENT | |
7437 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7438 | return TRUE; |
252b5132 RH |
7439 | } |
7440 | ||
84d1d650 L |
7441 | /* Copy ELF program header information. */ |
7442 | ||
7443 | static bfd_boolean | |
7444 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7445 | { | |
7446 | Elf_Internal_Ehdr *iehdr; | |
7447 | struct elf_segment_map *map; | |
7448 | struct elf_segment_map *map_first; | |
7449 | struct elf_segment_map **pointer_to_map; | |
7450 | Elf_Internal_Phdr *segment; | |
7451 | unsigned int i; | |
7452 | unsigned int num_segments; | |
7453 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7454 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7455 | |
7456 | iehdr = elf_elfheader (ibfd); | |
7457 | ||
7458 | map_first = NULL; | |
7459 | pointer_to_map = &map_first; | |
7460 | ||
88967714 AM |
7461 | /* If all the segment p_paddr fields are zero, don't set |
7462 | map->p_paddr_valid. */ | |
7463 | p_paddr_valid = FALSE; | |
84d1d650 | 7464 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7465 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7466 | i < num_segments; | |
7467 | i++, segment++) | |
7468 | if (segment->p_paddr != 0) | |
7469 | { | |
7470 | p_paddr_valid = TRUE; | |
7471 | break; | |
7472 | } | |
7473 | ||
84d1d650 L |
7474 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7475 | i < num_segments; | |
7476 | i++, segment++) | |
7477 | { | |
7478 | asection *section; | |
7479 | unsigned int section_count; | |
7480 | bfd_size_type amt; | |
7481 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 7482 | asection *first_section = NULL; |
a76e6f2f | 7483 | asection *lowest_section; |
84d1d650 | 7484 | |
84d1d650 L |
7485 | /* Compute how many sections are in this segment. */ |
7486 | for (section = ibfd->sections, section_count = 0; | |
7487 | section != NULL; | |
7488 | section = section->next) | |
7489 | { | |
7490 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7491 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7492 | { |
a76e6f2f AM |
7493 | if (first_section == NULL) |
7494 | first_section = section; | |
3271a814 NS |
7495 | section_count++; |
7496 | } | |
84d1d650 L |
7497 | } |
7498 | ||
7499 | /* Allocate a segment map big enough to contain | |
7500 | all of the sections we have selected. */ | |
00bee008 AM |
7501 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7502 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 7503 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7504 | if (map == NULL) |
7505 | return FALSE; | |
7506 | ||
7507 | /* Initialize the fields of the output segment map with the | |
7508 | input segment. */ | |
7509 | map->next = NULL; | |
7510 | map->p_type = segment->p_type; | |
7511 | map->p_flags = segment->p_flags; | |
7512 | map->p_flags_valid = 1; | |
7513 | map->p_paddr = segment->p_paddr; | |
88967714 | 7514 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7515 | map->p_align = segment->p_align; |
7516 | map->p_align_valid = 1; | |
3271a814 | 7517 | map->p_vaddr_offset = 0; |
84d1d650 | 7518 | |
04c3a755 NS |
7519 | if (map->p_type == PT_GNU_RELRO |
7520 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7521 | { |
7522 | /* The PT_GNU_RELRO segment may contain the first a few | |
7523 | bytes in the .got.plt section even if the whole .got.plt | |
7524 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7525 | change the size of the PT_GNU_RELRO segment. |
7526 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7527 | systems. */ | |
9433b9b1 | 7528 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7529 | map->p_size_valid = 1; |
7530 | } | |
7531 | ||
84d1d650 L |
7532 | /* Determine if this segment contains the ELF file header |
7533 | and if it contains the program headers themselves. */ | |
7534 | map->includes_filehdr = (segment->p_offset == 0 | |
7535 | && segment->p_filesz >= iehdr->e_ehsize); | |
7536 | ||
7537 | map->includes_phdrs = 0; | |
7538 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7539 | { | |
7540 | map->includes_phdrs = | |
7541 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7542 | && (segment->p_offset + segment->p_filesz | |
7543 | >= ((bfd_vma) iehdr->e_phoff | |
7544 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7545 | ||
7546 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7547 | phdr_included = TRUE; | |
7548 | } | |
7549 | ||
bbefd0a9 | 7550 | lowest_section = NULL; |
84d1d650 L |
7551 | if (section_count != 0) |
7552 | { | |
7553 | unsigned int isec = 0; | |
7554 | ||
53020534 | 7555 | for (section = first_section; |
84d1d650 L |
7556 | section != NULL; |
7557 | section = section->next) | |
7558 | { | |
7559 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7560 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7561 | { |
7562 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7563 | if ((section->flags & SEC_ALLOC) != 0) |
7564 | { | |
7565 | bfd_vma seg_off; | |
7566 | ||
bbefd0a9 AM |
7567 | if (lowest_section == NULL |
7568 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7569 | lowest_section = section; |
7570 | ||
a76e6f2f AM |
7571 | /* Section lmas are set up from PT_LOAD header |
7572 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7573 | If this header has a p_paddr that disagrees | |
7574 | with the section lma, flag the p_paddr as | |
7575 | invalid. */ | |
7576 | if ((section->flags & SEC_LOAD) != 0) | |
7577 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7578 | else | |
7579 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7580 | if (section->lma - segment->p_paddr != seg_off) | |
7581 | map->p_paddr_valid = FALSE; | |
7582 | } | |
53020534 L |
7583 | if (isec == section_count) |
7584 | break; | |
7585 | } | |
84d1d650 L |
7586 | } |
7587 | } | |
7588 | ||
5d695627 AM |
7589 | if (section_count == 0) |
7590 | map->p_vaddr_offset = segment->p_vaddr; | |
30fe1832 AM |
7591 | else if (map->p_paddr_valid) |
7592 | { | |
7593 | /* Account for padding before the first section in the segment. */ | |
7594 | bfd_vma hdr_size = 0; | |
7595 | if (map->includes_filehdr) | |
7596 | hdr_size = iehdr->e_ehsize; | |
7597 | if (map->includes_phdrs) | |
7598 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7599 | ||
7600 | map->p_vaddr_offset = (map->p_paddr + hdr_size | |
7601 | - (lowest_section ? lowest_section->lma : 0)); | |
7602 | } | |
a76e6f2f | 7603 | |
84d1d650 L |
7604 | map->count = section_count; |
7605 | *pointer_to_map = map; | |
7606 | pointer_to_map = &map->next; | |
7607 | } | |
7608 | ||
12bd6957 | 7609 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7610 | return TRUE; |
7611 | } | |
7612 | ||
7613 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7614 | information. */ | |
7615 | ||
7616 | static bfd_boolean | |
7617 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7618 | { | |
84d1d650 L |
7619 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7620 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7621 | return TRUE; | |
7622 | ||
7623 | if (elf_tdata (ibfd)->phdr == NULL) | |
7624 | return TRUE; | |
7625 | ||
7626 | if (ibfd->xvec == obfd->xvec) | |
7627 | { | |
cb3ff1e5 NC |
7628 | /* Check to see if any sections in the input BFD |
7629 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7630 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7631 | asection *section, *osec; |
7632 | unsigned int i, num_segments; | |
7633 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7634 | const struct elf_backend_data *bed; |
7635 | ||
7636 | bed = get_elf_backend_data (ibfd); | |
7637 | ||
7638 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7639 | if (bed->want_p_paddr_set_to_zero) | |
7640 | goto rewrite; | |
84d1d650 L |
7641 | |
7642 | /* Initialize the segment mark field. */ | |
7643 | for (section = obfd->sections; section != NULL; | |
7644 | section = section->next) | |
7645 | section->segment_mark = FALSE; | |
7646 | ||
7647 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7648 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7649 | i < num_segments; | |
7650 | i++, segment++) | |
7651 | { | |
5f6999aa NC |
7652 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7653 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7654 | which severly confuses things, so always regenerate the segment | |
7655 | map in this case. */ | |
7656 | if (segment->p_paddr == 0 | |
7657 | && segment->p_memsz == 0 | |
7658 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7659 | goto rewrite; |
5f6999aa | 7660 | |
84d1d650 L |
7661 | for (section = ibfd->sections; |
7662 | section != NULL; section = section->next) | |
7663 | { | |
7664 | /* We mark the output section so that we know it comes | |
7665 | from the input BFD. */ | |
7666 | osec = section->output_section; | |
7667 | if (osec) | |
7668 | osec->segment_mark = TRUE; | |
7669 | ||
7670 | /* Check if this section is covered by the segment. */ | |
7671 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7672 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7673 | { |
7674 | /* FIXME: Check if its output section is changed or | |
7675 | removed. What else do we need to check? */ | |
7676 | if (osec == NULL | |
7677 | || section->flags != osec->flags | |
7678 | || section->lma != osec->lma | |
7679 | || section->vma != osec->vma | |
7680 | || section->size != osec->size | |
7681 | || section->rawsize != osec->rawsize | |
7682 | || section->alignment_power != osec->alignment_power) | |
7683 | goto rewrite; | |
7684 | } | |
7685 | } | |
7686 | } | |
7687 | ||
cb3ff1e5 | 7688 | /* Check to see if any output section do not come from the |
84d1d650 L |
7689 | input BFD. */ |
7690 | for (section = obfd->sections; section != NULL; | |
7691 | section = section->next) | |
7692 | { | |
535b785f | 7693 | if (!section->segment_mark) |
84d1d650 L |
7694 | goto rewrite; |
7695 | else | |
7696 | section->segment_mark = FALSE; | |
7697 | } | |
7698 | ||
7699 | return copy_elf_program_header (ibfd, obfd); | |
7700 | } | |
7701 | ||
7702 | rewrite: | |
f1d85785 L |
7703 | if (ibfd->xvec == obfd->xvec) |
7704 | { | |
7705 | /* When rewriting program header, set the output maxpagesize to | |
7706 | the maximum alignment of input PT_LOAD segments. */ | |
7707 | Elf_Internal_Phdr *segment; | |
7708 | unsigned int i; | |
7709 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7710 | bfd_vma maxpagesize = 0; | |
7711 | ||
7712 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7713 | i < num_segments; | |
7714 | i++, segment++) | |
7715 | if (segment->p_type == PT_LOAD | |
7716 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7717 | { |
7718 | /* PR 17512: file: f17299af. */ | |
7719 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7720 | /* xgettext:c-format */ |
2dcf00ce AM |
7721 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7722 | PRIx64 " is too large"), | |
7723 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7724 | else |
7725 | maxpagesize = segment->p_align; | |
7726 | } | |
f1d85785 L |
7727 | |
7728 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7729 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7730 | } | |
7731 | ||
84d1d650 L |
7732 | return rewrite_elf_program_header (ibfd, obfd); |
7733 | } | |
7734 | ||
ccd2ec6a L |
7735 | /* Initialize private output section information from input section. */ |
7736 | ||
7737 | bfd_boolean | |
7738 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7739 | asection *isec, | |
7740 | bfd *obfd, | |
7741 | asection *osec, | |
7742 | struct bfd_link_info *link_info) | |
7743 | ||
7744 | { | |
7745 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7746 | bfd_boolean final_link = (link_info != NULL |
7747 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7748 | |
7749 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7750 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7751 | return TRUE; | |
7752 | ||
ba85c43e NC |
7753 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7754 | ||
dfa7b0b8 AM |
7755 | /* For objcopy and relocatable link, don't copy the output ELF |
7756 | section type from input if the output BFD section flags have been | |
7757 | set to something different. For a final link allow some flags | |
7758 | that the linker clears to differ. */ | |
42bb2e33 | 7759 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7760 | && (osec->flags == isec->flags |
7761 | || (final_link | |
7762 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7763 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7764 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7765 | |
7766 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7767 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7768 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7769 | |
a91e1603 | 7770 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7771 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7772 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7773 | elf_section_data (osec)->this_hdr.sh_info |
7774 | = elf_section_data (isec)->this_hdr.sh_info; | |
7775 | ||
ccd2ec6a L |
7776 | /* Set things up for objcopy and relocatable link. The output |
7777 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7778 | to the input group members. Ignore linker created group section. | |
7779 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7780 | if ((link_info == NULL |
7781 | || !link_info->resolve_section_groups) | |
7782 | && (elf_sec_group (isec) == NULL | |
7783 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7784 | { |
7bdf4127 AB |
7785 | if (elf_section_flags (isec) & SHF_GROUP) |
7786 | elf_section_flags (osec) |= SHF_GROUP; | |
7787 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7788 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7789 | } |
7790 | ||
7bdf4127 AB |
7791 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7792 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7793 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7794 | & SHF_COMPRESSED); | |
7795 | ||
ccd2ec6a L |
7796 | ihdr = &elf_section_data (isec)->this_hdr; |
7797 | ||
7798 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7799 | don't use the output section of the linked-to section since it | |
7800 | may be NULL at this point. */ | |
7801 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7802 | { | |
7803 | ohdr = &elf_section_data (osec)->this_hdr; | |
7804 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7805 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7806 | } | |
7807 | ||
7808 | osec->use_rela_p = isec->use_rela_p; | |
7809 | ||
7810 | return TRUE; | |
7811 | } | |
7812 | ||
252b5132 RH |
7813 | /* Copy private section information. This copies over the entsize |
7814 | field, and sometimes the info field. */ | |
7815 | ||
b34976b6 | 7816 | bfd_boolean |
217aa764 AM |
7817 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7818 | asection *isec, | |
7819 | bfd *obfd, | |
7820 | asection *osec) | |
252b5132 RH |
7821 | { |
7822 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7823 | ||
7824 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7825 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7826 | return TRUE; |
252b5132 | 7827 | |
252b5132 RH |
7828 | ihdr = &elf_section_data (isec)->this_hdr; |
7829 | ohdr = &elf_section_data (osec)->this_hdr; | |
7830 | ||
7831 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7832 | ||
7833 | if (ihdr->sh_type == SHT_SYMTAB | |
7834 | || ihdr->sh_type == SHT_DYNSYM | |
7835 | || ihdr->sh_type == SHT_GNU_verneed | |
7836 | || ihdr->sh_type == SHT_GNU_verdef) | |
7837 | ohdr->sh_info = ihdr->sh_info; | |
7838 | ||
ccd2ec6a L |
7839 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7840 | NULL); | |
252b5132 RH |
7841 | } |
7842 | ||
d0bf826b AM |
7843 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7844 | necessary if we are removing either the SHT_GROUP section or any of | |
7845 | the group member sections. DISCARDED is the value that a section's | |
7846 | output_section has if the section will be discarded, NULL when this | |
7847 | function is called from objcopy, bfd_abs_section_ptr when called | |
7848 | from the linker. */ | |
80fccad2 BW |
7849 | |
7850 | bfd_boolean | |
d0bf826b | 7851 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7852 | { |
30288845 AM |
7853 | asection *isec; |
7854 | ||
30288845 | 7855 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7856 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7857 | { |
7858 | asection *first = elf_next_in_group (isec); | |
7859 | asection *s = first; | |
d0bf826b AM |
7860 | bfd_size_type removed = 0; |
7861 | ||
30288845 AM |
7862 | while (s != NULL) |
7863 | { | |
415f38a6 AM |
7864 | /* If this member section is being output but the |
7865 | SHT_GROUP section is not, then clear the group info | |
7866 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7867 | if (s->output_section != discarded |
7868 | && isec->output_section == discarded) | |
30288845 AM |
7869 | { |
7870 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7871 | elf_group_name (s->output_section) = NULL; | |
7872 | } | |
415f38a6 AM |
7873 | /* Conversely, if the member section is not being output |
7874 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7875 | else if (s->output_section == discarded |
7876 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7877 | { |
7878 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7879 | removed += 4; | |
7880 | if (elf_sec->rel.hdr != NULL | |
7881 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7882 | removed += 4; | |
7883 | if (elf_sec->rela.hdr != NULL | |
7884 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7885 | removed += 4; | |
7886 | } | |
30288845 AM |
7887 | s = elf_next_in_group (s); |
7888 | if (s == first) | |
7889 | break; | |
7890 | } | |
d0bf826b AM |
7891 | if (removed != 0) |
7892 | { | |
7893 | if (discarded != NULL) | |
7894 | { | |
7895 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7896 | adjust the input section size. */ |
d0bf826b AM |
7897 | if (isec->rawsize == 0) |
7898 | isec->rawsize = isec->size; | |
7899 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7900 | if (isec->size <= 4) |
7901 | { | |
7902 | isec->size = 0; | |
7903 | isec->flags |= SEC_EXCLUDE; | |
7904 | } | |
d0bf826b AM |
7905 | } |
7906 | else | |
7907 | { | |
7908 | /* Adjust the output section size when called from | |
7909 | objcopy. */ | |
7910 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7911 | if (isec->output_section->size <= 4) |
7912 | { | |
7913 | isec->output_section->size = 0; | |
7914 | isec->output_section->flags |= SEC_EXCLUDE; | |
7915 | } | |
d0bf826b AM |
7916 | } |
7917 | } | |
30288845 AM |
7918 | } |
7919 | ||
80fccad2 BW |
7920 | return TRUE; |
7921 | } | |
7922 | ||
d0bf826b AM |
7923 | /* Copy private header information. */ |
7924 | ||
7925 | bfd_boolean | |
7926 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7927 | { | |
7928 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7929 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7930 | return TRUE; | |
7931 | ||
7932 | /* Copy over private BFD data if it has not already been copied. | |
7933 | This must be done here, rather than in the copy_private_bfd_data | |
7934 | entry point, because the latter is called after the section | |
7935 | contents have been set, which means that the program headers have | |
7936 | already been worked out. */ | |
12bd6957 | 7937 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7938 | { |
7939 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7940 | return FALSE; | |
7941 | } | |
7942 | ||
7943 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7944 | } | |
7945 | ||
252b5132 RH |
7946 | /* Copy private symbol information. If this symbol is in a section |
7947 | which we did not map into a BFD section, try to map the section | |
7948 | index correctly. We use special macro definitions for the mapped | |
7949 | section indices; these definitions are interpreted by the | |
7950 | swap_out_syms function. */ | |
7951 | ||
9ad5cbcf AM |
7952 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7953 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7954 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7955 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7956 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7957 | |
b34976b6 | 7958 | bfd_boolean |
217aa764 AM |
7959 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7960 | asymbol *isymarg, | |
7961 | bfd *obfd, | |
7962 | asymbol *osymarg) | |
252b5132 RH |
7963 | { |
7964 | elf_symbol_type *isym, *osym; | |
7965 | ||
7966 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7967 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7968 | return TRUE; |
252b5132 RH |
7969 | |
7970 | isym = elf_symbol_from (ibfd, isymarg); | |
7971 | osym = elf_symbol_from (obfd, osymarg); | |
7972 | ||
7973 | if (isym != NULL | |
8424d8f5 | 7974 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7975 | && osym != NULL |
7976 | && bfd_is_abs_section (isym->symbol.section)) | |
7977 | { | |
7978 | unsigned int shndx; | |
7979 | ||
7980 | shndx = isym->internal_elf_sym.st_shndx; | |
7981 | if (shndx == elf_onesymtab (ibfd)) | |
7982 | shndx = MAP_ONESYMTAB; | |
7983 | else if (shndx == elf_dynsymtab (ibfd)) | |
7984 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7985 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7986 | shndx = MAP_STRTAB; |
12bd6957 | 7987 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7988 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7989 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7990 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7991 | osym->internal_elf_sym.st_shndx = shndx; |
7992 | } | |
7993 | ||
b34976b6 | 7994 | return TRUE; |
252b5132 RH |
7995 | } |
7996 | ||
7997 | /* Swap out the symbols. */ | |
7998 | ||
b34976b6 | 7999 | static bfd_boolean |
217aa764 | 8000 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8001 | struct elf_strtab_hash **sttp, |
217aa764 | 8002 | int relocatable_p) |
252b5132 | 8003 | { |
9c5bfbb7 | 8004 | const struct elf_backend_data *bed; |
079e9a2f AM |
8005 | int symcount; |
8006 | asymbol **syms; | |
ef10c3ac | 8007 | struct elf_strtab_hash *stt; |
079e9a2f | 8008 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8009 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8010 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8011 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8012 | bfd_byte *outbound_syms; |
8013 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
8014 | unsigned long outbound_syms_index; |
8015 | unsigned long outbound_shndx_index; | |
079e9a2f | 8016 | int idx; |
12bd6957 | 8017 | unsigned int num_locals; |
079e9a2f | 8018 | bfd_size_type amt; |
174fd7f9 | 8019 | bfd_boolean name_local_sections; |
252b5132 | 8020 | |
12bd6957 | 8021 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 8022 | return FALSE; |
252b5132 | 8023 | |
c044fabd | 8024 | /* Dump out the symtabs. */ |
ef10c3ac | 8025 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8026 | if (stt == NULL) |
b34976b6 | 8027 | return FALSE; |
252b5132 | 8028 | |
079e9a2f AM |
8029 | bed = get_elf_backend_data (abfd); |
8030 | symcount = bfd_get_symcount (abfd); | |
8031 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8032 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8033 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8034 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8035 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8036 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8037 | |
8038 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8039 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8040 | ||
ef10c3ac | 8041 | /* Allocate buffer to swap out the .strtab section. */ |
7a6e0d89 AM |
8042 | symstrtab = (struct elf_sym_strtab *) bfd_malloc2 (symcount + 1, |
8043 | sizeof (*symstrtab)); | |
ef10c3ac L |
8044 | if (symstrtab == NULL) |
8045 | { | |
8046 | _bfd_elf_strtab_free (stt); | |
8047 | return FALSE; | |
8048 | } | |
8049 | ||
a50b1753 | 8050 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
07d6d2b8 | 8051 | bed->s->sizeof_sym); |
079e9a2f | 8052 | if (outbound_syms == NULL) |
5ed6aba4 | 8053 | { |
ef10c3ac L |
8054 | error_return: |
8055 | _bfd_elf_strtab_free (stt); | |
8056 | free (symstrtab); | |
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 | { | |
8070 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
8071 | outbound_shndx = (bfd_byte *) | |
8072 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
8073 | if (outbound_shndx == NULL) | |
8074 | goto error_return; | |
5ed6aba4 | 8075 | |
6a40cf0c NC |
8076 | symtab_shndx_hdr->contents = outbound_shndx; |
8077 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8078 | symtab_shndx_hdr->sh_size = amt; | |
8079 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8080 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8081 | } | |
8082 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8083 | } |
8084 | ||
589e6347 | 8085 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8086 | { |
8087 | /* Fill in zeroth symbol and swap it out. */ | |
8088 | Elf_Internal_Sym sym; | |
8089 | sym.st_name = 0; | |
8090 | sym.st_value = 0; | |
8091 | sym.st_size = 0; | |
8092 | sym.st_info = 0; | |
8093 | sym.st_other = 0; | |
8094 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8095 | sym.st_target_internal = 0; |
ef10c3ac L |
8096 | symstrtab[0].sym = sym; |
8097 | symstrtab[0].dest_index = outbound_syms_index; | |
8098 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8099 | outbound_syms_index++; | |
9ad5cbcf | 8100 | if (outbound_shndx != NULL) |
ef10c3ac | 8101 | outbound_shndx_index++; |
079e9a2f | 8102 | } |
252b5132 | 8103 | |
174fd7f9 RS |
8104 | name_local_sections |
8105 | = (bed->elf_backend_name_local_section_symbols | |
8106 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8107 | ||
079e9a2f | 8108 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8109 | for (idx = 0; idx < symcount;) |
252b5132 | 8110 | { |
252b5132 | 8111 | Elf_Internal_Sym sym; |
079e9a2f AM |
8112 | bfd_vma value = syms[idx]->value; |
8113 | elf_symbol_type *type_ptr; | |
8114 | flagword flags = syms[idx]->flags; | |
8115 | int type; | |
252b5132 | 8116 | |
174fd7f9 RS |
8117 | if (!name_local_sections |
8118 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8119 | { |
8120 | /* Local section symbols have no name. */ | |
ef10c3ac | 8121 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8122 | } |
8123 | else | |
8124 | { | |
ef10c3ac L |
8125 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8126 | to get the final offset for st_name. */ | |
8127 | sym.st_name | |
8128 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
8129 | FALSE); | |
079e9a2f | 8130 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8131 | goto error_return; |
079e9a2f | 8132 | } |
252b5132 | 8133 | |
079e9a2f | 8134 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 8135 | |
079e9a2f AM |
8136 | if ((flags & BSF_SECTION_SYM) == 0 |
8137 | && bfd_is_com_section (syms[idx]->section)) | |
8138 | { | |
8139 | /* ELF common symbols put the alignment into the `value' field, | |
8140 | and the size into the `size' field. This is backwards from | |
8141 | how BFD handles it, so reverse it here. */ | |
8142 | sym.st_size = value; | |
8143 | if (type_ptr == NULL | |
8144 | || type_ptr->internal_elf_sym.st_value == 0) | |
8145 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8146 | else | |
8147 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8148 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8149 | (abfd, syms[idx]->section); | |
8150 | } | |
8151 | else | |
8152 | { | |
8153 | asection *sec = syms[idx]->section; | |
cb33740c | 8154 | unsigned int shndx; |
252b5132 | 8155 | |
079e9a2f AM |
8156 | if (sec->output_section) |
8157 | { | |
8158 | value += sec->output_offset; | |
8159 | sec = sec->output_section; | |
8160 | } | |
589e6347 | 8161 | |
079e9a2f AM |
8162 | /* Don't add in the section vma for relocatable output. */ |
8163 | if (! relocatable_p) | |
8164 | value += sec->vma; | |
8165 | sym.st_value = value; | |
8166 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8167 | ||
8168 | if (bfd_is_abs_section (sec) | |
8169 | && type_ptr != NULL | |
8170 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8171 | { | |
8172 | /* This symbol is in a real ELF section which we did | |
8173 | not create as a BFD section. Undo the mapping done | |
8174 | by copy_private_symbol_data. */ | |
8175 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8176 | switch (shndx) | |
8177 | { | |
8178 | case MAP_ONESYMTAB: | |
8179 | shndx = elf_onesymtab (abfd); | |
8180 | break; | |
8181 | case MAP_DYNSYMTAB: | |
8182 | shndx = elf_dynsymtab (abfd); | |
8183 | break; | |
8184 | case MAP_STRTAB: | |
12bd6957 | 8185 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8186 | break; |
8187 | case MAP_SHSTRTAB: | |
12bd6957 | 8188 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8189 | break; |
9ad5cbcf | 8190 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8191 | if (elf_symtab_shndx_list (abfd)) |
8192 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8193 | break; |
079e9a2f | 8194 | default: |
15bc576a | 8195 | shndx = SHN_ABS; |
079e9a2f AM |
8196 | break; |
8197 | } | |
8198 | } | |
8199 | else | |
8200 | { | |
8201 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8202 | |
cb33740c | 8203 | if (shndx == SHN_BAD) |
079e9a2f AM |
8204 | { |
8205 | asection *sec2; | |
8206 | ||
8207 | /* Writing this would be a hell of a lot easier if | |
8208 | we had some decent documentation on bfd, and | |
8209 | knew what to expect of the library, and what to | |
8210 | demand of applications. For example, it | |
8211 | appears that `objcopy' might not set the | |
8212 | section of a symbol to be a section that is | |
8213 | actually in the output file. */ | |
8214 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8215 | if (sec2 != NULL) |
8216 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8217 | if (shndx == SHN_BAD) | |
589e6347 | 8218 | { |
695344c0 | 8219 | /* xgettext:c-format */ |
9793eb77 AM |
8220 | _bfd_error_handler |
8221 | (_("unable to find equivalent output section" | |
8222 | " for symbol '%s' from section '%s'"), | |
8223 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8224 | sec->name); | |
811072d8 | 8225 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8226 | goto error_return; |
589e6347 | 8227 | } |
079e9a2f AM |
8228 | } |
8229 | } | |
252b5132 | 8230 | |
079e9a2f AM |
8231 | sym.st_shndx = shndx; |
8232 | } | |
252b5132 | 8233 | |
13ae64f3 JJ |
8234 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8235 | type = STT_TLS; | |
d8045f23 NC |
8236 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8237 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8238 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8239 | type = STT_FUNC; |
8240 | else if ((flags & BSF_OBJECT) != 0) | |
8241 | type = STT_OBJECT; | |
d9352518 DB |
8242 | else if ((flags & BSF_RELC) != 0) |
8243 | type = STT_RELC; | |
8244 | else if ((flags & BSF_SRELC) != 0) | |
8245 | type = STT_SRELC; | |
079e9a2f AM |
8246 | else |
8247 | type = STT_NOTYPE; | |
252b5132 | 8248 | |
13ae64f3 JJ |
8249 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8250 | type = STT_TLS; | |
8251 | ||
589e6347 | 8252 | /* Processor-specific types. */ |
079e9a2f AM |
8253 | if (type_ptr != NULL |
8254 | && bed->elf_backend_get_symbol_type) | |
8255 | type = ((*bed->elf_backend_get_symbol_type) | |
8256 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8257 | |
079e9a2f AM |
8258 | if (flags & BSF_SECTION_SYM) |
8259 | { | |
8260 | if (flags & BSF_GLOBAL) | |
8261 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8262 | else | |
8263 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8264 | } | |
8265 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8266 | { |
b8871f35 L |
8267 | if (type != STT_TLS) |
8268 | { | |
8269 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8270 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8271 | ? STT_COMMON : STT_OBJECT); | |
8272 | else | |
8273 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8274 | ? STT_COMMON : STT_OBJECT); | |
8275 | } | |
8276 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8277 | } |
079e9a2f AM |
8278 | else if (bfd_is_und_section (syms[idx]->section)) |
8279 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8280 | ? STB_WEAK | |
8281 | : STB_GLOBAL), | |
8282 | type); | |
8283 | else if (flags & BSF_FILE) | |
8284 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8285 | else | |
8286 | { | |
8287 | int bind = STB_LOCAL; | |
252b5132 | 8288 | |
079e9a2f AM |
8289 | if (flags & BSF_LOCAL) |
8290 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8291 | else if (flags & BSF_GNU_UNIQUE) |
8292 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8293 | else if (flags & BSF_WEAK) |
8294 | bind = STB_WEAK; | |
8295 | else if (flags & BSF_GLOBAL) | |
8296 | bind = STB_GLOBAL; | |
252b5132 | 8297 | |
079e9a2f AM |
8298 | sym.st_info = ELF_ST_INFO (bind, type); |
8299 | } | |
252b5132 | 8300 | |
079e9a2f | 8301 | if (type_ptr != NULL) |
35fc36a8 RS |
8302 | { |
8303 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8304 | sym.st_target_internal | |
8305 | = type_ptr->internal_elf_sym.st_target_internal; | |
8306 | } | |
079e9a2f | 8307 | else |
35fc36a8 RS |
8308 | { |
8309 | sym.st_other = 0; | |
8310 | sym.st_target_internal = 0; | |
8311 | } | |
252b5132 | 8312 | |
ef10c3ac L |
8313 | idx++; |
8314 | symstrtab[idx].sym = sym; | |
8315 | symstrtab[idx].dest_index = outbound_syms_index; | |
8316 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8317 | ||
8318 | outbound_syms_index++; | |
9ad5cbcf | 8319 | if (outbound_shndx != NULL) |
ef10c3ac L |
8320 | outbound_shndx_index++; |
8321 | } | |
8322 | ||
8323 | /* Finalize the .strtab section. */ | |
8324 | _bfd_elf_strtab_finalize (stt); | |
8325 | ||
8326 | /* Swap out the .strtab section. */ | |
8327 | for (idx = 0; idx <= symcount; idx++) | |
8328 | { | |
8329 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8330 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8331 | elfsym->sym.st_name = 0; | |
8332 | else | |
8333 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8334 | elfsym->sym.st_name); | |
8335 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8336 | (outbound_syms | |
8337 | + (elfsym->dest_index | |
8338 | * bed->s->sizeof_sym)), | |
8339 | (outbound_shndx | |
8340 | + (elfsym->destshndx_index | |
8341 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8342 | } |
ef10c3ac | 8343 | free (symstrtab); |
252b5132 | 8344 | |
079e9a2f | 8345 | *sttp = stt; |
ef10c3ac | 8346 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8347 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8348 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8349 | symstrtab_hdr->sh_addr = 0; |
8350 | symstrtab_hdr->sh_entsize = 0; | |
8351 | symstrtab_hdr->sh_link = 0; | |
8352 | symstrtab_hdr->sh_info = 0; | |
8353 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8354 | |
b34976b6 | 8355 | return TRUE; |
252b5132 RH |
8356 | } |
8357 | ||
8358 | /* Return the number of bytes required to hold the symtab vector. | |
8359 | ||
8360 | Note that we base it on the count plus 1, since we will null terminate | |
8361 | the vector allocated based on this size. However, the ELF symbol table | |
8362 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8363 | ||
8364 | long | |
217aa764 | 8365 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8366 | { |
3a551c7a | 8367 | bfd_size_type symcount; |
252b5132 RH |
8368 | long symtab_size; |
8369 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8370 | ||
8371 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8372 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8373 | { | |
8374 | bfd_set_error (bfd_error_file_too_big); | |
8375 | return -1; | |
8376 | } | |
b99d1833 AM |
8377 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8378 | if (symcount > 0) | |
8379 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8380 | |
8381 | return symtab_size; | |
8382 | } | |
8383 | ||
8384 | long | |
217aa764 | 8385 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8386 | { |
3a551c7a | 8387 | bfd_size_type symcount; |
252b5132 RH |
8388 | long symtab_size; |
8389 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8390 | ||
8391 | if (elf_dynsymtab (abfd) == 0) | |
8392 | { | |
8393 | bfd_set_error (bfd_error_invalid_operation); | |
8394 | return -1; | |
8395 | } | |
8396 | ||
8397 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8398 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8399 | { | |
8400 | bfd_set_error (bfd_error_file_too_big); | |
8401 | return -1; | |
8402 | } | |
b99d1833 AM |
8403 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8404 | if (symcount > 0) | |
8405 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8406 | |
8407 | return symtab_size; | |
8408 | } | |
8409 | ||
8410 | long | |
217aa764 AM |
8411 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8412 | sec_ptr asect) | |
252b5132 | 8413 | { |
242a1159 | 8414 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8415 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8416 | { | |
8417 | bfd_set_error (bfd_error_file_too_big); | |
8418 | return -1; | |
8419 | } | |
242a1159 | 8420 | #endif |
252b5132 RH |
8421 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8422 | } | |
8423 | ||
8424 | /* Canonicalize the relocs. */ | |
8425 | ||
8426 | long | |
217aa764 AM |
8427 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8428 | sec_ptr section, | |
8429 | arelent **relptr, | |
8430 | asymbol **symbols) | |
252b5132 RH |
8431 | { |
8432 | arelent *tblptr; | |
8433 | unsigned int i; | |
9c5bfbb7 | 8434 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8435 | |
b34976b6 | 8436 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8437 | return -1; |
8438 | ||
8439 | tblptr = section->relocation; | |
8440 | for (i = 0; i < section->reloc_count; i++) | |
8441 | *relptr++ = tblptr++; | |
8442 | ||
8443 | *relptr = NULL; | |
8444 | ||
8445 | return section->reloc_count; | |
8446 | } | |
8447 | ||
8448 | long | |
6cee3f79 | 8449 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8450 | { |
9c5bfbb7 | 8451 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8452 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8453 | |
8454 | if (symcount >= 0) | |
ed48ec2e | 8455 | abfd->symcount = symcount; |
252b5132 RH |
8456 | return symcount; |
8457 | } | |
8458 | ||
8459 | long | |
217aa764 AM |
8460 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8461 | asymbol **allocation) | |
252b5132 | 8462 | { |
9c5bfbb7 | 8463 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8464 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8465 | |
8466 | if (symcount >= 0) | |
ed48ec2e | 8467 | abfd->dynsymcount = symcount; |
1f70368c | 8468 | return symcount; |
252b5132 RH |
8469 | } |
8470 | ||
8615f3f2 AM |
8471 | /* Return the size required for the dynamic reloc entries. Any loadable |
8472 | section that was actually installed in the BFD, and has type SHT_REL | |
8473 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8474 | dynamic reloc section. */ | |
252b5132 RH |
8475 | |
8476 | long | |
217aa764 | 8477 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8478 | { |
3a551c7a | 8479 | bfd_size_type count; |
252b5132 RH |
8480 | asection *s; |
8481 | ||
8482 | if (elf_dynsymtab (abfd) == 0) | |
8483 | { | |
8484 | bfd_set_error (bfd_error_invalid_operation); | |
8485 | return -1; | |
8486 | } | |
8487 | ||
3a551c7a | 8488 | count = 1; |
252b5132 | 8489 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8490 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8491 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8492 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a AM |
8493 | { |
8494 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; | |
8495 | if (count > LONG_MAX / sizeof (arelent *)) | |
8496 | { | |
8497 | bfd_set_error (bfd_error_file_too_big); | |
8498 | return -1; | |
8499 | } | |
8500 | } | |
8501 | return count * sizeof (arelent *); | |
252b5132 RH |
8502 | } |
8503 | ||
8615f3f2 AM |
8504 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8505 | dynamic relocations as a single block, although they are actually | |
8506 | associated with particular sections; the interface, which was | |
8507 | designed for SunOS style shared libraries, expects that there is only | |
8508 | one set of dynamic relocs. Any loadable section that was actually | |
8509 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8510 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8511 | |
8512 | long | |
217aa764 AM |
8513 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8514 | arelent **storage, | |
8515 | asymbol **syms) | |
252b5132 | 8516 | { |
217aa764 | 8517 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8518 | asection *s; |
8519 | long ret; | |
8520 | ||
8521 | if (elf_dynsymtab (abfd) == 0) | |
8522 | { | |
8523 | bfd_set_error (bfd_error_invalid_operation); | |
8524 | return -1; | |
8525 | } | |
8526 | ||
8527 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8528 | ret = 0; | |
8529 | for (s = abfd->sections; s != NULL; s = s->next) | |
8530 | { | |
266b05cf | 8531 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8532 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8533 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8534 | { | |
8535 | arelent *p; | |
8536 | long count, i; | |
8537 | ||
b34976b6 | 8538 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8539 | return -1; |
eea6121a | 8540 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8541 | p = s->relocation; |
8542 | for (i = 0; i < count; i++) | |
8543 | *storage++ = p++; | |
8544 | ret += count; | |
8545 | } | |
8546 | } | |
8547 | ||
8548 | *storage = NULL; | |
8549 | ||
8550 | return ret; | |
8551 | } | |
8552 | \f | |
8553 | /* Read in the version information. */ | |
8554 | ||
b34976b6 | 8555 | bfd_boolean |
fc0e6df6 | 8556 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8557 | { |
8558 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
8559 | unsigned int freeidx = 0; |
8560 | ||
8561 | if (elf_dynverref (abfd) != 0) | |
8562 | { | |
8563 | Elf_Internal_Shdr *hdr; | |
8564 | Elf_External_Verneed *everneed; | |
8565 | Elf_Internal_Verneed *iverneed; | |
8566 | unsigned int i; | |
d0fb9a8d | 8567 | bfd_byte *contents_end; |
fc0e6df6 PB |
8568 | |
8569 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8570 | ||
bd61e135 AM |
8571 | if (hdr->sh_info == 0 |
8572 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8573 | { |
601a03ba | 8574 | error_return_bad_verref: |
4eca0228 | 8575 | _bfd_error_handler |
871b3ab2 | 8576 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8577 | bfd_set_error (bfd_error_bad_value); |
d0fb9a8d JJ |
8578 | error_return_verref: |
8579 | elf_tdata (abfd)->verref = NULL; | |
8580 | elf_tdata (abfd)->cverrefs = 0; | |
8581 | goto error_return; | |
8582 | } | |
601a03ba | 8583 | |
7e56c51c NC |
8584 | ufile_ptr filesize = bfd_get_file_size (abfd); |
8585 | if (filesize > 0 && filesize < hdr->sh_size) | |
8586 | { | |
8587 | /* PR 24708: Avoid attempts to allocate a ridiculous amount | |
8588 | of memory. */ | |
8589 | bfd_set_error (bfd_error_no_memory); | |
8590 | _bfd_error_handler | |
8591 | /* xgettext:c-format */ | |
8592 | (_("error: %pB version reference section is too large (%#" PRIx64 " bytes)"), | |
8593 | abfd, (uint64_t) hdr->sh_size); | |
8594 | goto error_return_verref; | |
8595 | } | |
601a03ba AM |
8596 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
8597 | if (contents == NULL) | |
8598 | goto error_return_verref; | |
8599 | ||
fc0e6df6 PB |
8600 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
8601 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 8602 | goto error_return_verref; |
fc0e6df6 | 8603 | |
601a03ba | 8604 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
bd61e135 | 8605 | bfd_alloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); |
601a03ba AM |
8606 | |
8607 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
8608 | goto error_return_verref; |
8609 | ||
8610 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8611 | == sizeof (Elf_External_Vernaux)); | |
8612 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8613 | everneed = (Elf_External_Verneed *) contents; |
8614 | iverneed = elf_tdata (abfd)->verref; | |
8615 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8616 | { | |
8617 | Elf_External_Vernaux *evernaux; | |
8618 | Elf_Internal_Vernaux *ivernaux; | |
8619 | unsigned int j; | |
8620 | ||
8621 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8622 | ||
8623 | iverneed->vn_bfd = abfd; | |
8624 | ||
8625 | iverneed->vn_filename = | |
8626 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8627 | iverneed->vn_file); | |
8628 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8629 | goto error_return_bad_verref; |
fc0e6df6 | 8630 | |
d0fb9a8d JJ |
8631 | if (iverneed->vn_cnt == 0) |
8632 | iverneed->vn_auxptr = NULL; | |
8633 | else | |
8634 | { | |
a50b1753 | 8635 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
07d6d2b8 AM |
8636 | bfd_alloc2 (abfd, iverneed->vn_cnt, |
8637 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
8638 | if (iverneed->vn_auxptr == NULL) |
8639 | goto error_return_verref; | |
8640 | } | |
8641 | ||
8642 | if (iverneed->vn_aux | |
8643 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8644 | goto error_return_bad_verref; |
fc0e6df6 PB |
8645 | |
8646 | evernaux = ((Elf_External_Vernaux *) | |
8647 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8648 | ivernaux = iverneed->vn_auxptr; | |
8649 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8650 | { | |
8651 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8652 | ||
8653 | ivernaux->vna_nodename = | |
8654 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8655 | ivernaux->vna_name); | |
8656 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8657 | goto error_return_bad_verref; |
fc0e6df6 | 8658 | |
25ff461f AM |
8659 | if (ivernaux->vna_other > freeidx) |
8660 | freeidx = ivernaux->vna_other; | |
8661 | ||
8662 | ivernaux->vna_nextptr = NULL; | |
8663 | if (ivernaux->vna_next == 0) | |
8664 | { | |
8665 | iverneed->vn_cnt = j + 1; | |
8666 | break; | |
8667 | } | |
fc0e6df6 PB |
8668 | if (j + 1 < iverneed->vn_cnt) |
8669 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8670 | |
d0fb9a8d JJ |
8671 | if (ivernaux->vna_next |
8672 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8673 | goto error_return_bad_verref; |
d0fb9a8d | 8674 | |
fc0e6df6 PB |
8675 | evernaux = ((Elf_External_Vernaux *) |
8676 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8677 | } |
8678 | ||
25ff461f AM |
8679 | iverneed->vn_nextref = NULL; |
8680 | if (iverneed->vn_next == 0) | |
8681 | break; | |
fc0e6df6 PB |
8682 | if (i + 1 < hdr->sh_info) |
8683 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8684 | |
d0fb9a8d JJ |
8685 | if (iverneed->vn_next |
8686 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8687 | goto error_return_bad_verref; |
d0fb9a8d | 8688 | |
fc0e6df6 PB |
8689 | everneed = ((Elf_External_Verneed *) |
8690 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8691 | } | |
25ff461f | 8692 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8693 | |
8694 | free (contents); | |
8695 | contents = NULL; | |
8696 | } | |
252b5132 RH |
8697 | |
8698 | if (elf_dynverdef (abfd) != 0) | |
8699 | { | |
8700 | Elf_Internal_Shdr *hdr; | |
8701 | Elf_External_Verdef *everdef; | |
8702 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8703 | Elf_Internal_Verdef *iverdefarr; |
8704 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8705 | unsigned int i; |
062e2358 | 8706 | unsigned int maxidx; |
d0fb9a8d | 8707 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8708 | |
8709 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8710 | ||
601a03ba AM |
8711 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8712 | { | |
8713 | error_return_bad_verdef: | |
4eca0228 | 8714 | _bfd_error_handler |
871b3ab2 | 8715 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8716 | bfd_set_error (bfd_error_bad_value); |
8717 | error_return_verdef: | |
8718 | elf_tdata (abfd)->verdef = NULL; | |
8719 | elf_tdata (abfd)->cverdefs = 0; | |
8720 | goto error_return; | |
8721 | } | |
8722 | ||
a50b1753 | 8723 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 8724 | if (contents == NULL) |
601a03ba | 8725 | goto error_return_verdef; |
252b5132 | 8726 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 8727 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 8728 | goto error_return_verdef; |
d0fb9a8d JJ |
8729 | |
8730 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8731 | >= sizeof (Elf_External_Verdaux)); | |
8732 | contents_end_def = contents + hdr->sh_size | |
8733 | - sizeof (Elf_External_Verdef); | |
8734 | contents_end_aux = contents + hdr->sh_size | |
8735 | - sizeof (Elf_External_Verdaux); | |
8736 | ||
f631889e UD |
8737 | /* We know the number of entries in the section but not the maximum |
8738 | index. Therefore we have to run through all entries and find | |
8739 | the maximum. */ | |
252b5132 | 8740 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8741 | maxidx = 0; |
8742 | for (i = 0; i < hdr->sh_info; ++i) | |
8743 | { | |
8744 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8745 | ||
601a03ba AM |
8746 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8747 | goto error_return_bad_verdef; | |
062e2358 AM |
8748 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8749 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8750 | |
25ff461f AM |
8751 | if (iverdefmem.vd_next == 0) |
8752 | break; | |
8753 | ||
d0fb9a8d JJ |
8754 | if (iverdefmem.vd_next |
8755 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8756 | goto error_return_bad_verdef; |
d0fb9a8d | 8757 | |
f631889e UD |
8758 | everdef = ((Elf_External_Verdef *) |
8759 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8760 | } | |
8761 | ||
fc0e6df6 PB |
8762 | if (default_imported_symver) |
8763 | { | |
8764 | if (freeidx > maxidx) | |
8765 | maxidx = ++freeidx; | |
8766 | else | |
8767 | freeidx = ++maxidx; | |
8768 | } | |
201159ec | 8769 | |
601a03ba AM |
8770 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
8771 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 8772 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8773 | goto error_return_verdef; |
f631889e UD |
8774 | |
8775 | elf_tdata (abfd)->cverdefs = maxidx; | |
8776 | ||
8777 | everdef = (Elf_External_Verdef *) contents; | |
8778 | iverdefarr = elf_tdata (abfd)->verdef; | |
8779 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8780 | { |
8781 | Elf_External_Verdaux *everdaux; | |
8782 | Elf_Internal_Verdaux *iverdaux; | |
8783 | unsigned int j; | |
8784 | ||
f631889e UD |
8785 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8786 | ||
d0fb9a8d | 8787 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8788 | goto error_return_bad_verdef; |
d0fb9a8d | 8789 | |
f631889e | 8790 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8791 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8792 | |
8793 | iverdef->vd_bfd = abfd; | |
8794 | ||
d0fb9a8d JJ |
8795 | if (iverdef->vd_cnt == 0) |
8796 | iverdef->vd_auxptr = NULL; | |
8797 | else | |
8798 | { | |
a50b1753 | 8799 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
07d6d2b8 AM |
8800 | bfd_alloc2 (abfd, iverdef->vd_cnt, |
8801 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
8802 | if (iverdef->vd_auxptr == NULL) |
8803 | goto error_return_verdef; | |
8804 | } | |
8805 | ||
8806 | if (iverdef->vd_aux | |
8807 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8808 | goto error_return_bad_verdef; |
252b5132 RH |
8809 | |
8810 | everdaux = ((Elf_External_Verdaux *) | |
8811 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8812 | iverdaux = iverdef->vd_auxptr; | |
8813 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8814 | { | |
8815 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8816 | ||
8817 | iverdaux->vda_nodename = | |
8818 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8819 | iverdaux->vda_name); | |
8820 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8821 | goto error_return_bad_verdef; |
252b5132 | 8822 | |
25ff461f AM |
8823 | iverdaux->vda_nextptr = NULL; |
8824 | if (iverdaux->vda_next == 0) | |
8825 | { | |
8826 | iverdef->vd_cnt = j + 1; | |
8827 | break; | |
8828 | } | |
252b5132 RH |
8829 | if (j + 1 < iverdef->vd_cnt) |
8830 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8831 | |
d0fb9a8d JJ |
8832 | if (iverdaux->vda_next |
8833 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8834 | goto error_return_bad_verdef; |
d0fb9a8d | 8835 | |
252b5132 RH |
8836 | everdaux = ((Elf_External_Verdaux *) |
8837 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8838 | } | |
8839 | ||
595bce75 | 8840 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8841 | if (iverdef->vd_cnt) |
8842 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8843 | |
25ff461f AM |
8844 | iverdef->vd_nextdef = NULL; |
8845 | if (iverdef->vd_next == 0) | |
8846 | break; | |
d0fb9a8d | 8847 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8848 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8849 | |
8850 | everdef = ((Elf_External_Verdef *) | |
8851 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8852 | } | |
8853 | ||
8854 | free (contents); | |
8855 | contents = NULL; | |
8856 | } | |
fc0e6df6 | 8857 | else if (default_imported_symver) |
252b5132 | 8858 | { |
fc0e6df6 PB |
8859 | if (freeidx < 3) |
8860 | freeidx = 3; | |
8861 | else | |
8862 | freeidx++; | |
252b5132 | 8863 | |
a50b1753 | 8864 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
07d6d2b8 | 8865 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); |
fc0e6df6 | 8866 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8867 | goto error_return; |
8868 | ||
fc0e6df6 PB |
8869 | elf_tdata (abfd)->cverdefs = freeidx; |
8870 | } | |
252b5132 | 8871 | |
fc0e6df6 PB |
8872 | /* Create a default version based on the soname. */ |
8873 | if (default_imported_symver) | |
8874 | { | |
8875 | Elf_Internal_Verdef *iverdef; | |
8876 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8877 | |
5bb3703f | 8878 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8879 | |
fc0e6df6 PB |
8880 | iverdef->vd_version = VER_DEF_CURRENT; |
8881 | iverdef->vd_flags = 0; | |
8882 | iverdef->vd_ndx = freeidx; | |
8883 | iverdef->vd_cnt = 1; | |
252b5132 | 8884 | |
fc0e6df6 | 8885 | iverdef->vd_bfd = abfd; |
252b5132 | 8886 | |
fc0e6df6 PB |
8887 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8888 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8889 | goto error_return_verdef; |
fc0e6df6 | 8890 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8891 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8892 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8893 | if (iverdef->vd_auxptr == NULL) |
8894 | goto error_return_verdef; | |
252b5132 | 8895 | |
fc0e6df6 PB |
8896 | iverdaux = iverdef->vd_auxptr; |
8897 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8898 | } |
8899 | ||
b34976b6 | 8900 | return TRUE; |
252b5132 RH |
8901 | |
8902 | error_return: | |
5ed6aba4 | 8903 | if (contents != NULL) |
252b5132 | 8904 | free (contents); |
b34976b6 | 8905 | return FALSE; |
252b5132 RH |
8906 | } |
8907 | \f | |
8908 | asymbol * | |
217aa764 | 8909 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8910 | { |
8911 | elf_symbol_type *newsym; | |
8912 | ||
7a6e0d89 | 8913 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
8914 | if (!newsym) |
8915 | return NULL; | |
201159ec NC |
8916 | newsym->symbol.the_bfd = abfd; |
8917 | return &newsym->symbol; | |
252b5132 RH |
8918 | } |
8919 | ||
8920 | void | |
217aa764 AM |
8921 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8922 | asymbol *symbol, | |
8923 | symbol_info *ret) | |
252b5132 RH |
8924 | { |
8925 | bfd_symbol_info (symbol, ret); | |
8926 | } | |
8927 | ||
8928 | /* Return whether a symbol name implies a local symbol. Most targets | |
8929 | use this function for the is_local_label_name entry point, but some | |
8930 | override it. */ | |
8931 | ||
b34976b6 | 8932 | bfd_boolean |
217aa764 AM |
8933 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8934 | const char *name) | |
252b5132 RH |
8935 | { |
8936 | /* Normal local symbols start with ``.L''. */ | |
8937 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8938 | return TRUE; |
252b5132 RH |
8939 | |
8940 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8941 | DWARF debugging symbols starting with ``..''. */ | |
8942 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8943 | return TRUE; |
252b5132 RH |
8944 | |
8945 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8946 | emitting DWARF debugging output. I suspect this is actually a | |
8947 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8948 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8949 | underscore to be emitted on some ELF targets). For ease of use, | |
8950 | we treat such symbols as local. */ | |
8951 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8952 | return TRUE; |
252b5132 | 8953 | |
b1fa9dd6 NC |
8954 | /* Treat assembler generated fake symbols, dollar local labels and |
8955 | forward-backward labels (aka local labels) as locals. | |
8956 | These labels have the form: | |
8957 | ||
07d6d2b8 | 8958 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8959 | |
8960 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8961 | ||
8962 | Versions which start with .L will have already been matched above, | |
8963 | so we only need to match the rest. */ | |
8964 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8965 | { | |
8966 | bfd_boolean ret = FALSE; | |
8967 | const char * p; | |
8968 | char c; | |
8969 | ||
8970 | for (p = name + 2; (c = *p); p++) | |
8971 | { | |
8972 | if (c == 1 || c == 2) | |
8973 | { | |
8974 | if (c == 1 && p == name + 2) | |
8975 | /* A fake symbol. */ | |
8976 | return TRUE; | |
8977 | ||
8978 | /* FIXME: We are being paranoid here and treating symbols like | |
8979 | L0^Bfoo as if there were non-local, on the grounds that the | |
8980 | assembler will never generate them. But can any symbol | |
8981 | containing an ASCII value in the range 1-31 ever be anything | |
8982 | other than some kind of local ? */ | |
8983 | ret = TRUE; | |
8984 | } | |
8985 | ||
8986 | if (! ISDIGIT (c)) | |
8987 | { | |
8988 | ret = FALSE; | |
8989 | break; | |
8990 | } | |
8991 | } | |
8992 | return ret; | |
8993 | } | |
ffa54770 | 8994 | |
b34976b6 | 8995 | return FALSE; |
252b5132 RH |
8996 | } |
8997 | ||
8998 | alent * | |
217aa764 AM |
8999 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9000 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9001 | { |
9002 | abort (); | |
9003 | return NULL; | |
9004 | } | |
9005 | ||
b34976b6 | 9006 | bfd_boolean |
217aa764 AM |
9007 | _bfd_elf_set_arch_mach (bfd *abfd, |
9008 | enum bfd_architecture arch, | |
9009 | unsigned long machine) | |
252b5132 RH |
9010 | { |
9011 | /* If this isn't the right architecture for this backend, and this | |
9012 | isn't the generic backend, fail. */ | |
9013 | if (arch != get_elf_backend_data (abfd)->arch | |
9014 | && arch != bfd_arch_unknown | |
9015 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 9016 | return FALSE; |
252b5132 RH |
9017 | |
9018 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9019 | } | |
9020 | ||
d1fad7c6 NC |
9021 | /* Find the nearest line to a particular section and offset, |
9022 | for error reporting. */ | |
9023 | ||
b34976b6 | 9024 | bfd_boolean |
217aa764 | 9025 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9026 | asymbol **symbols, |
fb167eb2 | 9027 | asection *section, |
217aa764 AM |
9028 | bfd_vma offset, |
9029 | const char **filename_ptr, | |
9030 | const char **functionname_ptr, | |
fb167eb2 AM |
9031 | unsigned int *line_ptr, |
9032 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9033 | { |
b34976b6 | 9034 | bfd_boolean found; |
d1fad7c6 | 9035 | |
fb167eb2 | 9036 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9037 | filename_ptr, functionname_ptr, |
fb167eb2 | 9038 | line_ptr, discriminator_ptr, |
9defd221 | 9039 | dwarf_debug_sections, |
e00e8198 AM |
9040 | &elf_tdata (abfd)->dwarf2_find_line_info) |
9041 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9042 | filename_ptr, functionname_ptr, | |
9043 | line_ptr)) | |
d1fad7c6 NC |
9044 | { |
9045 | if (!*functionname_ptr) | |
e00e8198 AM |
9046 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9047 | *filename_ptr ? NULL : filename_ptr, | |
9048 | functionname_ptr); | |
b34976b6 | 9049 | return TRUE; |
d1fad7c6 NC |
9050 | } |
9051 | ||
9052 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9053 | &found, filename_ptr, |
9054 | functionname_ptr, line_ptr, | |
9055 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 9056 | return FALSE; |
dc43ada5 | 9057 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 9058 | return TRUE; |
d1fad7c6 NC |
9059 | |
9060 | if (symbols == NULL) | |
b34976b6 | 9061 | return FALSE; |
d1fad7c6 | 9062 | |
e00e8198 AM |
9063 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9064 | filename_ptr, functionname_ptr)) | |
b34976b6 | 9065 | return FALSE; |
d1fad7c6 | 9066 | |
252b5132 | 9067 | *line_ptr = 0; |
b34976b6 | 9068 | return TRUE; |
252b5132 RH |
9069 | } |
9070 | ||
5420f73d L |
9071 | /* Find the line for a symbol. */ |
9072 | ||
9073 | bfd_boolean | |
9074 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
9075 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9076 | { |
fb167eb2 AM |
9077 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9078 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9079 | dwarf_debug_sections, |
fb167eb2 | 9080 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9081 | } |
9082 | ||
4ab527b0 FF |
9083 | /* After a call to bfd_find_nearest_line, successive calls to |
9084 | bfd_find_inliner_info can be used to get source information about | |
9085 | each level of function inlining that terminated at the address | |
9086 | passed to bfd_find_nearest_line. Currently this is only supported | |
9087 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9088 | ||
9089 | bfd_boolean | |
9090 | _bfd_elf_find_inliner_info (bfd *abfd, | |
9091 | const char **filename_ptr, | |
9092 | const char **functionname_ptr, | |
9093 | unsigned int *line_ptr) | |
9094 | { | |
9095 | bfd_boolean found; | |
9096 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9097 | functionname_ptr, line_ptr, | |
9098 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9099 | return found; | |
9100 | } | |
9101 | ||
252b5132 | 9102 | int |
a6b96beb | 9103 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9104 | { |
8ded5a0f AM |
9105 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9106 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9107 | |
0e1862bb | 9108 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9109 | { |
12bd6957 | 9110 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9111 | |
62d7a5f6 AM |
9112 | if (phdr_size == (bfd_size_type) -1) |
9113 | { | |
9114 | struct elf_segment_map *m; | |
9115 | ||
9116 | phdr_size = 0; | |
12bd6957 | 9117 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9118 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9119 | |
62d7a5f6 AM |
9120 | if (phdr_size == 0) |
9121 | phdr_size = get_program_header_size (abfd, info); | |
9122 | } | |
8ded5a0f | 9123 | |
12bd6957 | 9124 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9125 | ret += phdr_size; |
9126 | } | |
9127 | ||
252b5132 RH |
9128 | return ret; |
9129 | } | |
9130 | ||
b34976b6 | 9131 | bfd_boolean |
217aa764 AM |
9132 | _bfd_elf_set_section_contents (bfd *abfd, |
9133 | sec_ptr section, | |
0f867abe | 9134 | const void *location, |
217aa764 AM |
9135 | file_ptr offset, |
9136 | bfd_size_type count) | |
252b5132 RH |
9137 | { |
9138 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9139 | file_ptr pos; |
252b5132 RH |
9140 | |
9141 | if (! abfd->output_has_begun | |
217aa764 | 9142 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 9143 | return FALSE; |
252b5132 | 9144 | |
0ce398f1 L |
9145 | if (!count) |
9146 | return TRUE; | |
9147 | ||
252b5132 | 9148 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9149 | if (hdr->sh_offset == (file_ptr) -1) |
9150 | { | |
1ff6de03 NA |
9151 | if (bfd_section_is_ctf (section)) |
9152 | /* Nothing to do with this section: the contents are generated | |
9153 | later. */ | |
9154 | return TRUE; | |
9155 | ||
0ce398f1 L |
9156 | /* We must compress this section. Write output to the buffer. */ |
9157 | unsigned char *contents = hdr->contents; | |
9158 | if ((offset + count) > hdr->sh_size | |
9159 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
9160 | || contents == NULL) | |
9161 | abort (); | |
9162 | memcpy (contents + offset, location, count); | |
9163 | return TRUE; | |
9164 | } | |
dc810e39 AM |
9165 | pos = hdr->sh_offset + offset; |
9166 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9167 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9168 | return FALSE; |
252b5132 | 9169 | |
b34976b6 | 9170 | return TRUE; |
252b5132 RH |
9171 | } |
9172 | ||
f3185997 | 9173 | bfd_boolean |
217aa764 AM |
9174 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9175 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9176 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9177 | { |
9178 | abort (); | |
f3185997 | 9179 | return FALSE; |
252b5132 RH |
9180 | } |
9181 | ||
252b5132 RH |
9182 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9183 | ||
b34976b6 | 9184 | bfd_boolean |
217aa764 | 9185 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9186 | { |
c044fabd | 9187 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9188 | |
9189 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9190 | { | |
9191 | bfd_reloc_code_real_type code; | |
9192 | reloc_howto_type *howto; | |
9193 | ||
9194 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9195 | equivalent ELF reloc. */ |
252b5132 RH |
9196 | |
9197 | if (areloc->howto->pc_relative) | |
9198 | { | |
9199 | switch (areloc->howto->bitsize) | |
9200 | { | |
9201 | case 8: | |
9202 | code = BFD_RELOC_8_PCREL; | |
9203 | break; | |
9204 | case 12: | |
9205 | code = BFD_RELOC_12_PCREL; | |
9206 | break; | |
9207 | case 16: | |
9208 | code = BFD_RELOC_16_PCREL; | |
9209 | break; | |
9210 | case 24: | |
9211 | code = BFD_RELOC_24_PCREL; | |
9212 | break; | |
9213 | case 32: | |
9214 | code = BFD_RELOC_32_PCREL; | |
9215 | break; | |
9216 | case 64: | |
9217 | code = BFD_RELOC_64_PCREL; | |
9218 | break; | |
9219 | default: | |
9220 | goto fail; | |
9221 | } | |
9222 | ||
9223 | howto = bfd_reloc_type_lookup (abfd, code); | |
9224 | ||
9225 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
9226 | { | |
9227 | if (howto->pcrel_offset) | |
9228 | areloc->addend += areloc->address; | |
9229 | else | |
9230 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9231 | } | |
9232 | } | |
9233 | else | |
9234 | { | |
9235 | switch (areloc->howto->bitsize) | |
9236 | { | |
9237 | case 8: | |
9238 | code = BFD_RELOC_8; | |
9239 | break; | |
9240 | case 14: | |
9241 | code = BFD_RELOC_14; | |
9242 | break; | |
9243 | case 16: | |
9244 | code = BFD_RELOC_16; | |
9245 | break; | |
9246 | case 26: | |
9247 | code = BFD_RELOC_26; | |
9248 | break; | |
9249 | case 32: | |
9250 | code = BFD_RELOC_32; | |
9251 | break; | |
9252 | case 64: | |
9253 | code = BFD_RELOC_64; | |
9254 | break; | |
9255 | default: | |
9256 | goto fail; | |
9257 | } | |
9258 | ||
9259 | howto = bfd_reloc_type_lookup (abfd, code); | |
9260 | } | |
9261 | ||
9262 | if (howto) | |
9263 | areloc->howto = howto; | |
9264 | else | |
9265 | goto fail; | |
9266 | } | |
9267 | ||
b34976b6 | 9268 | return TRUE; |
252b5132 RH |
9269 | |
9270 | fail: | |
0aa13fee AM |
9271 | /* xgettext:c-format */ |
9272 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9273 | abfd, areloc->howto->name); | |
9aea1e31 | 9274 | bfd_set_error (bfd_error_sorry); |
b34976b6 | 9275 | return FALSE; |
252b5132 RH |
9276 | } |
9277 | ||
b34976b6 | 9278 | bfd_boolean |
217aa764 | 9279 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9280 | { |
d9071b0c TG |
9281 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9282 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9283 | { |
c0355132 | 9284 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9285 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9286 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9287 | } |
9288 | ||
9289 | return _bfd_generic_close_and_cleanup (abfd); | |
9290 | } | |
9291 | ||
9292 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9293 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9294 | range-checking to interfere. There is nothing else to do in processing | |
9295 | this reloc. */ | |
9296 | ||
9297 | bfd_reloc_status_type | |
217aa764 AM |
9298 | _bfd_elf_rel_vtable_reloc_fn |
9299 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9300 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9301 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9302 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9303 | { |
9304 | return bfd_reloc_ok; | |
9305 | } | |
252b5132 RH |
9306 | \f |
9307 | /* Elf core file support. Much of this only works on native | |
9308 | toolchains, since we rely on knowing the | |
9309 | machine-dependent procfs structure in order to pick | |
c044fabd | 9310 | out details about the corefile. */ |
252b5132 RH |
9311 | |
9312 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9313 | /* Needed for new procfs interface on sparc-solaris. */ |
9314 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9315 | # include <sys/procfs.h> |
9316 | #endif | |
9317 | ||
261b8d08 PA |
9318 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9319 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9320 | |
9321 | static int | |
217aa764 | 9322 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9323 | { |
261b8d08 PA |
9324 | int pid; |
9325 | ||
228e534f | 9326 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9327 | if (pid == 0) |
228e534f | 9328 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9329 | |
9330 | return pid; | |
252b5132 RH |
9331 | } |
9332 | ||
252b5132 RH |
9333 | /* If there isn't a section called NAME, make one, using |
9334 | data from SECT. Note, this function will generate a | |
9335 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9336 | overwrite it. */ |
252b5132 | 9337 | |
b34976b6 | 9338 | static bfd_boolean |
217aa764 | 9339 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9340 | { |
c044fabd | 9341 | asection *sect2; |
252b5132 RH |
9342 | |
9343 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9344 | return TRUE; |
252b5132 | 9345 | |
117ed4f8 | 9346 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9347 | if (sect2 == NULL) |
b34976b6 | 9348 | return FALSE; |
252b5132 | 9349 | |
eea6121a | 9350 | sect2->size = sect->size; |
252b5132 | 9351 | sect2->filepos = sect->filepos; |
252b5132 | 9352 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9353 | return TRUE; |
252b5132 RH |
9354 | } |
9355 | ||
bb0082d6 AM |
9356 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9357 | actually creates up to two pseudosections: | |
9358 | - For the single-threaded case, a section named NAME, unless | |
9359 | such a section already exists. | |
9360 | - For the multi-threaded case, a section named "NAME/PID", where | |
9361 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9362 | Both pseudosections have identical contents. */ |
b34976b6 | 9363 | bfd_boolean |
217aa764 AM |
9364 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9365 | char *name, | |
9366 | size_t size, | |
9367 | ufile_ptr filepos) | |
bb0082d6 AM |
9368 | { |
9369 | char buf[100]; | |
9370 | char *threaded_name; | |
d4c88bbb | 9371 | size_t len; |
bb0082d6 AM |
9372 | asection *sect; |
9373 | ||
9374 | /* Build the section name. */ | |
9375 | ||
9376 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9377 | len = strlen (buf) + 1; |
a50b1753 | 9378 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9379 | if (threaded_name == NULL) |
b34976b6 | 9380 | return FALSE; |
d4c88bbb | 9381 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9382 | |
117ed4f8 AM |
9383 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9384 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9385 | if (sect == NULL) |
b34976b6 | 9386 | return FALSE; |
eea6121a | 9387 | sect->size = size; |
bb0082d6 | 9388 | sect->filepos = filepos; |
bb0082d6 AM |
9389 | sect->alignment_power = 2; |
9390 | ||
936e320b | 9391 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9392 | } |
9393 | ||
58e07198 CZ |
9394 | static bfd_boolean |
9395 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9396 | size_t offs) | |
9397 | { | |
9398 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9399 | SEC_HAS_CONTENTS); | |
9400 | ||
9401 | if (sect == NULL) | |
9402 | return FALSE; | |
9403 | ||
9404 | sect->size = note->descsz - offs; | |
9405 | sect->filepos = note->descpos + offs; | |
9406 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9407 | ||
9408 | return TRUE; | |
9409 | } | |
9410 | ||
252b5132 | 9411 | /* prstatus_t exists on: |
4a938328 | 9412 | solaris 2.5+ |
252b5132 RH |
9413 | linux 2.[01] + glibc |
9414 | unixware 4.2 | |
9415 | */ | |
9416 | ||
9417 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9418 | |
b34976b6 | 9419 | static bfd_boolean |
217aa764 | 9420 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9421 | { |
eea6121a | 9422 | size_t size; |
7ee38065 | 9423 | int offset; |
252b5132 | 9424 | |
4a938328 MS |
9425 | if (note->descsz == sizeof (prstatus_t)) |
9426 | { | |
9427 | prstatus_t prstat; | |
252b5132 | 9428 | |
eea6121a | 9429 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9430 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9431 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9432 | |
fa49d224 NC |
9433 | /* Do not overwrite the core signal if it |
9434 | has already been set by another thread. */ | |
228e534f AM |
9435 | if (elf_tdata (abfd)->core->signal == 0) |
9436 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9437 | if (elf_tdata (abfd)->core->pid == 0) | |
9438 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9439 | |
4a938328 MS |
9440 | /* pr_who exists on: |
9441 | solaris 2.5+ | |
9442 | unixware 4.2 | |
9443 | pr_who doesn't exist on: | |
9444 | linux 2.[01] | |
9445 | */ | |
252b5132 | 9446 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9447 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9448 | #else |
228e534f | 9449 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9450 | #endif |
4a938328 | 9451 | } |
7ee38065 | 9452 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9453 | else if (note->descsz == sizeof (prstatus32_t)) |
9454 | { | |
9455 | /* 64-bit host, 32-bit corefile */ | |
9456 | prstatus32_t prstat; | |
9457 | ||
eea6121a | 9458 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9459 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9460 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9461 | ||
fa49d224 NC |
9462 | /* Do not overwrite the core signal if it |
9463 | has already been set by another thread. */ | |
228e534f AM |
9464 | if (elf_tdata (abfd)->core->signal == 0) |
9465 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9466 | if (elf_tdata (abfd)->core->pid == 0) | |
9467 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9468 | |
9469 | /* pr_who exists on: | |
9470 | solaris 2.5+ | |
9471 | unixware 4.2 | |
9472 | pr_who doesn't exist on: | |
9473 | linux 2.[01] | |
9474 | */ | |
7ee38065 | 9475 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9476 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9477 | #else |
228e534f | 9478 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9479 | #endif |
9480 | } | |
7ee38065 | 9481 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9482 | else |
9483 | { | |
9484 | /* Fail - we don't know how to handle any other | |
9485 | note size (ie. data object type). */ | |
b34976b6 | 9486 | return TRUE; |
4a938328 | 9487 | } |
252b5132 | 9488 | |
bb0082d6 | 9489 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9490 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9491 | size, note->descpos + offset); |
252b5132 RH |
9492 | } |
9493 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9494 | ||
bb0082d6 | 9495 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9496 | static bfd_boolean |
217aa764 AM |
9497 | elfcore_make_note_pseudosection (bfd *abfd, |
9498 | char *name, | |
9499 | Elf_Internal_Note *note) | |
252b5132 | 9500 | { |
936e320b AM |
9501 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9502 | note->descsz, note->descpos); | |
252b5132 RH |
9503 | } |
9504 | ||
ff08c6bb JB |
9505 | /* There isn't a consistent prfpregset_t across platforms, |
9506 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9507 | data structure apart. */ |
9508 | ||
b34976b6 | 9509 | static bfd_boolean |
217aa764 | 9510 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9511 | { |
9512 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9513 | } | |
9514 | ||
ff08c6bb | 9515 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9516 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9517 | literally. */ |
c044fabd | 9518 | |
b34976b6 | 9519 | static bfd_boolean |
217aa764 | 9520 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9521 | { |
9522 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9523 | } | |
9524 | ||
4339cae0 L |
9525 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9526 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9527 | contents literally. */ | |
9528 | ||
9529 | static bfd_boolean | |
9530 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9531 | { | |
9532 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9533 | } | |
9534 | ||
97753bd5 AM |
9535 | static bfd_boolean |
9536 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9537 | { | |
9538 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9539 | } | |
9540 | ||
89eeb0bc LM |
9541 | static bfd_boolean |
9542 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9543 | { | |
9544 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9545 | } | |
97753bd5 | 9546 | |
cb2366c1 EBM |
9547 | static bfd_boolean |
9548 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9549 | { | |
9550 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9551 | } | |
9552 | ||
9553 | static bfd_boolean | |
9554 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9555 | { | |
9556 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9557 | } | |
9558 | ||
9559 | static bfd_boolean | |
9560 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9561 | { | |
9562 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9563 | } | |
9564 | ||
9565 | static bfd_boolean | |
9566 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9567 | { | |
9568 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9569 | } | |
9570 | ||
9571 | static bfd_boolean | |
9572 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9573 | { | |
9574 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9575 | } | |
9576 | ||
9577 | static bfd_boolean | |
9578 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9579 | { | |
9580 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9581 | } | |
9582 | ||
9583 | static bfd_boolean | |
9584 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9585 | { | |
9586 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9587 | } | |
9588 | ||
9589 | static bfd_boolean | |
9590 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9591 | { | |
9592 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9593 | } | |
9594 | ||
9595 | static bfd_boolean | |
9596 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9597 | { | |
9598 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9599 | } | |
9600 | ||
9601 | static bfd_boolean | |
9602 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9603 | { | |
9604 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9605 | } | |
9606 | ||
9607 | static bfd_boolean | |
9608 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9609 | { | |
9610 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9611 | } | |
9612 | ||
9613 | static bfd_boolean | |
9614 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9615 | { | |
9616 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9617 | } | |
9618 | ||
9619 | static bfd_boolean | |
9620 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9621 | { | |
9622 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9623 | } | |
9624 | ||
0675e188 UW |
9625 | static bfd_boolean |
9626 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9627 | { | |
9628 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9629 | } | |
9630 | ||
d7eeb400 MS |
9631 | static bfd_boolean |
9632 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9633 | { | |
9634 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9635 | } | |
9636 | ||
9637 | static bfd_boolean | |
9638 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9639 | { | |
9640 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9641 | } | |
9642 | ||
9643 | static bfd_boolean | |
9644 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9645 | { | |
9646 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9647 | } | |
9648 | ||
9649 | static bfd_boolean | |
9650 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9651 | { | |
9652 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9653 | } | |
9654 | ||
9655 | static bfd_boolean | |
9656 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9657 | { | |
9658 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9659 | } | |
9660 | ||
355b81d9 UW |
9661 | static bfd_boolean |
9662 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9663 | { | |
9664 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9665 | } | |
9666 | ||
9667 | static bfd_boolean | |
9668 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9669 | { | |
9670 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9671 | } | |
9672 | ||
abb3f6cc NC |
9673 | static bfd_boolean |
9674 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9675 | { | |
9676 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9677 | } | |
9678 | ||
4ef9f41a AA |
9679 | static bfd_boolean |
9680 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9681 | { | |
9682 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9683 | } | |
9684 | ||
9685 | static bfd_boolean | |
9686 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9687 | { | |
9688 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9689 | } | |
9690 | ||
88ab90e8 AA |
9691 | static bfd_boolean |
9692 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9693 | { | |
9694 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9695 | } | |
9696 | ||
9697 | static bfd_boolean | |
9698 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9699 | { | |
9700 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9701 | } | |
9702 | ||
faa9a424 UW |
9703 | static bfd_boolean |
9704 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9705 | { | |
9706 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9707 | } | |
9708 | ||
652451f8 YZ |
9709 | static bfd_boolean |
9710 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9711 | { | |
9712 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9713 | } | |
9714 | ||
9715 | static bfd_boolean | |
9716 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9717 | { | |
9718 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9719 | } | |
9720 | ||
9721 | static bfd_boolean | |
9722 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9723 | { | |
9724 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9725 | } | |
9726 | ||
ad1cc4e4 AH |
9727 | static bfd_boolean |
9728 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9729 | { | |
9730 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9731 | } | |
9732 | ||
e6c3b5bf AH |
9733 | static bfd_boolean |
9734 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9735 | { | |
9736 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9737 | } | |
9738 | ||
252b5132 | 9739 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9740 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9741 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9742 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9743 | #endif | |
252b5132 RH |
9744 | #endif |
9745 | ||
9746 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9747 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9748 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9749 | typedef psinfo32_t elfcore_psinfo32_t; |
9750 | #endif | |
252b5132 RH |
9751 | #endif |
9752 | ||
252b5132 RH |
9753 | /* return a malloc'ed copy of a string at START which is at |
9754 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9755 | the copy will always have a terminating '\0'. */ |
252b5132 | 9756 | |
936e320b | 9757 | char * |
217aa764 | 9758 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9759 | { |
dc810e39 | 9760 | char *dups; |
a50b1753 | 9761 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9762 | size_t len; |
252b5132 RH |
9763 | |
9764 | if (end == NULL) | |
9765 | len = max; | |
9766 | else | |
9767 | len = end - start; | |
9768 | ||
a50b1753 | 9769 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9770 | if (dups == NULL) |
252b5132 RH |
9771 | return NULL; |
9772 | ||
dc810e39 AM |
9773 | memcpy (dups, start, len); |
9774 | dups[len] = '\0'; | |
252b5132 | 9775 | |
dc810e39 | 9776 | return dups; |
252b5132 RH |
9777 | } |
9778 | ||
bb0082d6 | 9779 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9780 | static bfd_boolean |
217aa764 | 9781 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9782 | { |
4a938328 MS |
9783 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9784 | { | |
9785 | elfcore_psinfo_t psinfo; | |
252b5132 | 9786 | |
7ee38065 | 9787 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9788 | |
335e41d4 | 9789 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9790 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9791 | #endif |
228e534f | 9792 | elf_tdata (abfd)->core->program |
936e320b AM |
9793 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9794 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9795 | |
228e534f | 9796 | elf_tdata (abfd)->core->command |
936e320b AM |
9797 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9798 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9799 | } |
7ee38065 | 9800 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9801 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9802 | { | |
9803 | /* 64-bit host, 32-bit corefile */ | |
9804 | elfcore_psinfo32_t psinfo; | |
9805 | ||
7ee38065 | 9806 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9807 | |
335e41d4 | 9808 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9809 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9810 | #endif |
228e534f | 9811 | elf_tdata (abfd)->core->program |
936e320b AM |
9812 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9813 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9814 | |
228e534f | 9815 | elf_tdata (abfd)->core->command |
936e320b AM |
9816 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9817 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9818 | } |
9819 | #endif | |
9820 | ||
9821 | else | |
9822 | { | |
9823 | /* Fail - we don't know how to handle any other | |
9824 | note size (ie. data object type). */ | |
b34976b6 | 9825 | return TRUE; |
4a938328 | 9826 | } |
252b5132 RH |
9827 | |
9828 | /* Note that for some reason, a spurious space is tacked | |
9829 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9830 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9831 | |
9832 | { | |
228e534f | 9833 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9834 | int n = strlen (command); |
9835 | ||
9836 | if (0 < n && command[n - 1] == ' ') | |
9837 | command[n - 1] = '\0'; | |
9838 | } | |
9839 | ||
b34976b6 | 9840 | return TRUE; |
252b5132 RH |
9841 | } |
9842 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9843 | ||
252b5132 | 9844 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9845 | static bfd_boolean |
217aa764 | 9846 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9847 | { |
f572a39d AM |
9848 | if (note->descsz == sizeof (pstatus_t) |
9849 | #if defined (HAVE_PXSTATUS_T) | |
9850 | || note->descsz == sizeof (pxstatus_t) | |
9851 | #endif | |
9852 | ) | |
4a938328 MS |
9853 | { |
9854 | pstatus_t pstat; | |
252b5132 | 9855 | |
4a938328 | 9856 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9857 | |
228e534f | 9858 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9859 | } |
7ee38065 | 9860 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9861 | else if (note->descsz == sizeof (pstatus32_t)) |
9862 | { | |
9863 | /* 64-bit host, 32-bit corefile */ | |
9864 | pstatus32_t pstat; | |
252b5132 | 9865 | |
4a938328 | 9866 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9867 | |
228e534f | 9868 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9869 | } |
9870 | #endif | |
252b5132 RH |
9871 | /* Could grab some more details from the "representative" |
9872 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9873 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9874 | |
b34976b6 | 9875 | return TRUE; |
252b5132 RH |
9876 | } |
9877 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9878 | ||
252b5132 | 9879 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9880 | static bfd_boolean |
217aa764 | 9881 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9882 | { |
9883 | lwpstatus_t lwpstat; | |
9884 | char buf[100]; | |
c044fabd | 9885 | char *name; |
d4c88bbb | 9886 | size_t len; |
c044fabd | 9887 | asection *sect; |
252b5132 | 9888 | |
f572a39d AM |
9889 | if (note->descsz != sizeof (lwpstat) |
9890 | #if defined (HAVE_LWPXSTATUS_T) | |
9891 | && note->descsz != sizeof (lwpxstatus_t) | |
9892 | #endif | |
9893 | ) | |
b34976b6 | 9894 | return TRUE; |
252b5132 RH |
9895 | |
9896 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9897 | ||
228e534f | 9898 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9899 | /* Do not overwrite the core signal if it has already been set by |
9900 | another thread. */ | |
228e534f AM |
9901 | if (elf_tdata (abfd)->core->signal == 0) |
9902 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9903 | |
c044fabd | 9904 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9905 | |
9906 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9907 | len = strlen (buf) + 1; |
217aa764 | 9908 | name = bfd_alloc (abfd, len); |
252b5132 | 9909 | if (name == NULL) |
b34976b6 | 9910 | return FALSE; |
d4c88bbb | 9911 | memcpy (name, buf, len); |
252b5132 | 9912 | |
117ed4f8 | 9913 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9914 | if (sect == NULL) |
b34976b6 | 9915 | return FALSE; |
252b5132 RH |
9916 | |
9917 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9918 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9919 | sect->filepos = note->descpos |
9920 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9921 | #endif | |
9922 | ||
9923 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9924 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9925 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9926 | #endif | |
9927 | ||
252b5132 RH |
9928 | sect->alignment_power = 2; |
9929 | ||
9930 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9931 | return FALSE; |
252b5132 RH |
9932 | |
9933 | /* Make a ".reg2/999" section */ | |
9934 | ||
9935 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9936 | len = strlen (buf) + 1; |
217aa764 | 9937 | name = bfd_alloc (abfd, len); |
252b5132 | 9938 | if (name == NULL) |
b34976b6 | 9939 | return FALSE; |
d4c88bbb | 9940 | memcpy (name, buf, len); |
252b5132 | 9941 | |
117ed4f8 | 9942 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9943 | if (sect == NULL) |
b34976b6 | 9944 | return FALSE; |
252b5132 RH |
9945 | |
9946 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9947 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9948 | sect->filepos = note->descpos |
9949 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9950 | #endif | |
9951 | ||
9952 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9953 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9954 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9955 | #endif | |
9956 | ||
252b5132 RH |
9957 | sect->alignment_power = 2; |
9958 | ||
936e320b | 9959 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9960 | } |
9961 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9962 | ||
b34976b6 | 9963 | static bfd_boolean |
217aa764 | 9964 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9965 | { |
9966 | char buf[30]; | |
c044fabd | 9967 | char *name; |
d4c88bbb | 9968 | size_t len; |
c044fabd | 9969 | asection *sect; |
4a6636fb PA |
9970 | int type; |
9971 | int is_active_thread; | |
9972 | bfd_vma base_addr; | |
16e9c715 | 9973 | |
4a6636fb | 9974 | if (note->descsz < 728) |
b34976b6 | 9975 | return TRUE; |
16e9c715 | 9976 | |
4a6636fb PA |
9977 | if (! CONST_STRNEQ (note->namedata, "win32")) |
9978 | return TRUE; | |
9979 | ||
9980 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 9981 | |
4a6636fb | 9982 | switch (type) |
16e9c715 | 9983 | { |
4a6636fb | 9984 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 9985 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 9986 | /* process_info.pid */ |
228e534f | 9987 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 9988 | /* process_info.signal */ |
228e534f | 9989 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 9990 | break; |
16e9c715 | 9991 | |
4a6636fb | 9992 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 9993 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
9994 | /* thread_info.tid */ |
9995 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 9996 | |
d4c88bbb | 9997 | len = strlen (buf) + 1; |
a50b1753 | 9998 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9999 | if (name == NULL) |
b34976b6 | 10000 | return FALSE; |
c044fabd | 10001 | |
d4c88bbb | 10002 | memcpy (name, buf, len); |
16e9c715 | 10003 | |
117ed4f8 | 10004 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10005 | if (sect == NULL) |
b34976b6 | 10006 | return FALSE; |
c044fabd | 10007 | |
4a6636fb PA |
10008 | /* sizeof (thread_info.thread_context) */ |
10009 | sect->size = 716; | |
10010 | /* offsetof (thread_info.thread_context) */ | |
10011 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10012 | sect->alignment_power = 2; |
10013 | ||
4a6636fb PA |
10014 | /* thread_info.is_active_thread */ |
10015 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10016 | ||
10017 | if (is_active_thread) | |
16e9c715 | 10018 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 10019 | return FALSE; |
16e9c715 NC |
10020 | break; |
10021 | ||
4a6636fb | 10022 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 10023 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
10024 | /* module_info.base_address */ |
10025 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 10026 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 10027 | |
d4c88bbb | 10028 | len = strlen (buf) + 1; |
a50b1753 | 10029 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10030 | if (name == NULL) |
b34976b6 | 10031 | return FALSE; |
c044fabd | 10032 | |
d4c88bbb | 10033 | memcpy (name, buf, len); |
252b5132 | 10034 | |
117ed4f8 | 10035 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10036 | |
16e9c715 | 10037 | if (sect == NULL) |
b34976b6 | 10038 | return FALSE; |
c044fabd | 10039 | |
eea6121a | 10040 | sect->size = note->descsz; |
16e9c715 | 10041 | sect->filepos = note->descpos; |
16e9c715 NC |
10042 | sect->alignment_power = 2; |
10043 | break; | |
10044 | ||
10045 | default: | |
b34976b6 | 10046 | return TRUE; |
16e9c715 NC |
10047 | } |
10048 | ||
b34976b6 | 10049 | return TRUE; |
16e9c715 | 10050 | } |
252b5132 | 10051 | |
b34976b6 | 10052 | static bfd_boolean |
217aa764 | 10053 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10054 | { |
9c5bfbb7 | 10055 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10056 | |
252b5132 RH |
10057 | switch (note->type) |
10058 | { | |
10059 | default: | |
b34976b6 | 10060 | return TRUE; |
252b5132 | 10061 | |
252b5132 | 10062 | case NT_PRSTATUS: |
bb0082d6 AM |
10063 | if (bed->elf_backend_grok_prstatus) |
10064 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 10065 | return TRUE; |
bb0082d6 | 10066 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10067 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10068 | #else |
b34976b6 | 10069 | return TRUE; |
252b5132 RH |
10070 | #endif |
10071 | ||
10072 | #if defined (HAVE_PSTATUS_T) | |
10073 | case NT_PSTATUS: | |
10074 | return elfcore_grok_pstatus (abfd, note); | |
10075 | #endif | |
10076 | ||
10077 | #if defined (HAVE_LWPSTATUS_T) | |
10078 | case NT_LWPSTATUS: | |
10079 | return elfcore_grok_lwpstatus (abfd, note); | |
10080 | #endif | |
10081 | ||
10082 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10083 | return elfcore_grok_prfpreg (abfd, note); | |
10084 | ||
c044fabd | 10085 | case NT_WIN32PSTATUS: |
16e9c715 | 10086 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10087 | |
c044fabd | 10088 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10089 | if (note->namesz == 6 |
10090 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10091 | return elfcore_grok_prxfpreg (abfd, note); |
10092 | else | |
b34976b6 | 10093 | return TRUE; |
ff08c6bb | 10094 | |
4339cae0 L |
10095 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10096 | if (note->namesz == 6 | |
10097 | && strcmp (note->namedata, "LINUX") == 0) | |
10098 | return elfcore_grok_xstatereg (abfd, note); | |
10099 | else | |
10100 | return TRUE; | |
10101 | ||
97753bd5 AM |
10102 | case NT_PPC_VMX: |
10103 | if (note->namesz == 6 | |
10104 | && strcmp (note->namedata, "LINUX") == 0) | |
10105 | return elfcore_grok_ppc_vmx (abfd, note); | |
10106 | else | |
10107 | return TRUE; | |
10108 | ||
89eeb0bc LM |
10109 | case NT_PPC_VSX: |
10110 | if (note->namesz == 6 | |
07d6d2b8 AM |
10111 | && strcmp (note->namedata, "LINUX") == 0) |
10112 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10113 | else |
07d6d2b8 | 10114 | return TRUE; |
89eeb0bc | 10115 | |
cb2366c1 EBM |
10116 | case NT_PPC_TAR: |
10117 | if (note->namesz == 6 | |
4b24dd1a AM |
10118 | && strcmp (note->namedata, "LINUX") == 0) |
10119 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10120 | else |
4b24dd1a | 10121 | return TRUE; |
cb2366c1 EBM |
10122 | |
10123 | case NT_PPC_PPR: | |
10124 | if (note->namesz == 6 | |
4b24dd1a AM |
10125 | && strcmp (note->namedata, "LINUX") == 0) |
10126 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10127 | else |
4b24dd1a | 10128 | return TRUE; |
cb2366c1 EBM |
10129 | |
10130 | case NT_PPC_DSCR: | |
10131 | if (note->namesz == 6 | |
4b24dd1a AM |
10132 | && strcmp (note->namedata, "LINUX") == 0) |
10133 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10134 | else |
4b24dd1a | 10135 | return TRUE; |
cb2366c1 EBM |
10136 | |
10137 | case NT_PPC_EBB: | |
10138 | if (note->namesz == 6 | |
4b24dd1a AM |
10139 | && strcmp (note->namedata, "LINUX") == 0) |
10140 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10141 | else |
4b24dd1a | 10142 | return TRUE; |
cb2366c1 EBM |
10143 | |
10144 | case NT_PPC_PMU: | |
10145 | if (note->namesz == 6 | |
4b24dd1a AM |
10146 | && strcmp (note->namedata, "LINUX") == 0) |
10147 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10148 | else |
4b24dd1a | 10149 | return TRUE; |
cb2366c1 EBM |
10150 | |
10151 | case NT_PPC_TM_CGPR: | |
10152 | if (note->namesz == 6 | |
4b24dd1a AM |
10153 | && strcmp (note->namedata, "LINUX") == 0) |
10154 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10155 | else |
4b24dd1a | 10156 | return TRUE; |
cb2366c1 EBM |
10157 | |
10158 | case NT_PPC_TM_CFPR: | |
10159 | if (note->namesz == 6 | |
4b24dd1a AM |
10160 | && strcmp (note->namedata, "LINUX") == 0) |
10161 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10162 | else |
4b24dd1a | 10163 | return TRUE; |
cb2366c1 EBM |
10164 | |
10165 | case NT_PPC_TM_CVMX: | |
10166 | if (note->namesz == 6 | |
4b24dd1a AM |
10167 | && strcmp (note->namedata, "LINUX") == 0) |
10168 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10169 | else |
4b24dd1a | 10170 | return TRUE; |
cb2366c1 EBM |
10171 | |
10172 | case NT_PPC_TM_CVSX: | |
10173 | if (note->namesz == 6 | |
4b24dd1a AM |
10174 | && strcmp (note->namedata, "LINUX") == 0) |
10175 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10176 | else |
4b24dd1a | 10177 | return TRUE; |
cb2366c1 EBM |
10178 | |
10179 | case NT_PPC_TM_SPR: | |
10180 | if (note->namesz == 6 | |
4b24dd1a AM |
10181 | && strcmp (note->namedata, "LINUX") == 0) |
10182 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10183 | else |
4b24dd1a | 10184 | return TRUE; |
cb2366c1 EBM |
10185 | |
10186 | case NT_PPC_TM_CTAR: | |
10187 | if (note->namesz == 6 | |
4b24dd1a AM |
10188 | && strcmp (note->namedata, "LINUX") == 0) |
10189 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10190 | else |
4b24dd1a | 10191 | return TRUE; |
cb2366c1 EBM |
10192 | |
10193 | case NT_PPC_TM_CPPR: | |
10194 | if (note->namesz == 6 | |
4b24dd1a AM |
10195 | && strcmp (note->namedata, "LINUX") == 0) |
10196 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10197 | else |
4b24dd1a | 10198 | return TRUE; |
cb2366c1 EBM |
10199 | |
10200 | case NT_PPC_TM_CDSCR: | |
10201 | if (note->namesz == 6 | |
4b24dd1a AM |
10202 | && strcmp (note->namedata, "LINUX") == 0) |
10203 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10204 | else |
4b24dd1a | 10205 | return TRUE; |
cb2366c1 | 10206 | |
0675e188 UW |
10207 | case NT_S390_HIGH_GPRS: |
10208 | if (note->namesz == 6 | |
07d6d2b8 AM |
10209 | && strcmp (note->namedata, "LINUX") == 0) |
10210 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10211 | else |
07d6d2b8 | 10212 | return TRUE; |
0675e188 | 10213 | |
d7eeb400 MS |
10214 | case NT_S390_TIMER: |
10215 | if (note->namesz == 6 | |
07d6d2b8 AM |
10216 | && strcmp (note->namedata, "LINUX") == 0) |
10217 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10218 | else |
07d6d2b8 | 10219 | return TRUE; |
d7eeb400 MS |
10220 | |
10221 | case NT_S390_TODCMP: | |
10222 | if (note->namesz == 6 | |
07d6d2b8 AM |
10223 | && strcmp (note->namedata, "LINUX") == 0) |
10224 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10225 | else |
07d6d2b8 | 10226 | return TRUE; |
d7eeb400 MS |
10227 | |
10228 | case NT_S390_TODPREG: | |
10229 | if (note->namesz == 6 | |
07d6d2b8 AM |
10230 | && strcmp (note->namedata, "LINUX") == 0) |
10231 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10232 | else |
07d6d2b8 | 10233 | return TRUE; |
d7eeb400 MS |
10234 | |
10235 | case NT_S390_CTRS: | |
10236 | if (note->namesz == 6 | |
07d6d2b8 AM |
10237 | && strcmp (note->namedata, "LINUX") == 0) |
10238 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10239 | else |
07d6d2b8 | 10240 | return TRUE; |
d7eeb400 MS |
10241 | |
10242 | case NT_S390_PREFIX: | |
10243 | if (note->namesz == 6 | |
07d6d2b8 AM |
10244 | && strcmp (note->namedata, "LINUX") == 0) |
10245 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10246 | else |
07d6d2b8 | 10247 | return TRUE; |
d7eeb400 | 10248 | |
355b81d9 UW |
10249 | case NT_S390_LAST_BREAK: |
10250 | if (note->namesz == 6 | |
07d6d2b8 AM |
10251 | && strcmp (note->namedata, "LINUX") == 0) |
10252 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10253 | else |
07d6d2b8 | 10254 | return TRUE; |
355b81d9 UW |
10255 | |
10256 | case NT_S390_SYSTEM_CALL: | |
10257 | if (note->namesz == 6 | |
07d6d2b8 AM |
10258 | && strcmp (note->namedata, "LINUX") == 0) |
10259 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10260 | else |
07d6d2b8 | 10261 | return TRUE; |
355b81d9 | 10262 | |
abb3f6cc NC |
10263 | case NT_S390_TDB: |
10264 | if (note->namesz == 6 | |
07d6d2b8 AM |
10265 | && strcmp (note->namedata, "LINUX") == 0) |
10266 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10267 | else |
07d6d2b8 | 10268 | return TRUE; |
abb3f6cc | 10269 | |
4ef9f41a AA |
10270 | case NT_S390_VXRS_LOW: |
10271 | if (note->namesz == 6 | |
10272 | && strcmp (note->namedata, "LINUX") == 0) | |
10273 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10274 | else | |
10275 | return TRUE; | |
10276 | ||
10277 | case NT_S390_VXRS_HIGH: | |
10278 | if (note->namesz == 6 | |
10279 | && strcmp (note->namedata, "LINUX") == 0) | |
10280 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10281 | else | |
10282 | return TRUE; | |
10283 | ||
88ab90e8 AA |
10284 | case NT_S390_GS_CB: |
10285 | if (note->namesz == 6 | |
10286 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10287 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10288 | else |
10289 | return TRUE; | |
10290 | ||
10291 | case NT_S390_GS_BC: | |
10292 | if (note->namesz == 6 | |
10293 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10294 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10295 | else |
10296 | return TRUE; | |
10297 | ||
faa9a424 UW |
10298 | case NT_ARM_VFP: |
10299 | if (note->namesz == 6 | |
10300 | && strcmp (note->namedata, "LINUX") == 0) | |
10301 | return elfcore_grok_arm_vfp (abfd, note); | |
10302 | else | |
10303 | return TRUE; | |
10304 | ||
652451f8 YZ |
10305 | case NT_ARM_TLS: |
10306 | if (note->namesz == 6 | |
10307 | && strcmp (note->namedata, "LINUX") == 0) | |
10308 | return elfcore_grok_aarch_tls (abfd, note); | |
10309 | else | |
10310 | return TRUE; | |
10311 | ||
10312 | case NT_ARM_HW_BREAK: | |
10313 | if (note->namesz == 6 | |
10314 | && strcmp (note->namedata, "LINUX") == 0) | |
10315 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10316 | else | |
10317 | return TRUE; | |
10318 | ||
10319 | case NT_ARM_HW_WATCH: | |
10320 | if (note->namesz == 6 | |
10321 | && strcmp (note->namedata, "LINUX") == 0) | |
10322 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10323 | else | |
10324 | return TRUE; | |
10325 | ||
ad1cc4e4 AH |
10326 | case NT_ARM_SVE: |
10327 | if (note->namesz == 6 | |
10328 | && strcmp (note->namedata, "LINUX") == 0) | |
10329 | return elfcore_grok_aarch_sve (abfd, note); | |
10330 | else | |
10331 | return TRUE; | |
10332 | ||
e6c3b5bf AH |
10333 | case NT_ARM_PAC_MASK: |
10334 | if (note->namesz == 6 | |
10335 | && strcmp (note->namedata, "LINUX") == 0) | |
10336 | return elfcore_grok_aarch_pauth (abfd, note); | |
10337 | else | |
10338 | return TRUE; | |
10339 | ||
252b5132 RH |
10340 | case NT_PRPSINFO: |
10341 | case NT_PSINFO: | |
bb0082d6 AM |
10342 | if (bed->elf_backend_grok_psinfo) |
10343 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10344 | return TRUE; |
bb0082d6 | 10345 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10346 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10347 | #else |
b34976b6 | 10348 | return TRUE; |
252b5132 | 10349 | #endif |
3333a7c3 RM |
10350 | |
10351 | case NT_AUXV: | |
58e07198 | 10352 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10353 | |
451b7c33 TT |
10354 | case NT_FILE: |
10355 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10356 | note); | |
10357 | ||
9015683b TT |
10358 | case NT_SIGINFO: |
10359 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10360 | note); | |
5b2c414d | 10361 | |
252b5132 RH |
10362 | } |
10363 | } | |
10364 | ||
718175fa JK |
10365 | static bfd_boolean |
10366 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10367 | { | |
c74f7d1c | 10368 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10369 | |
10370 | if (note->descsz == 0) | |
10371 | return FALSE; | |
10372 | ||
c74f7d1c JT |
10373 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10374 | if (build_id == NULL) | |
718175fa JK |
10375 | return FALSE; |
10376 | ||
c74f7d1c JT |
10377 | build_id->size = note->descsz; |
10378 | memcpy (build_id->data, note->descdata, note->descsz); | |
10379 | abfd->build_id = build_id; | |
718175fa JK |
10380 | |
10381 | return TRUE; | |
10382 | } | |
10383 | ||
10384 | static bfd_boolean | |
10385 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10386 | { | |
10387 | switch (note->type) | |
10388 | { | |
10389 | default: | |
10390 | return TRUE; | |
10391 | ||
46bed679 L |
10392 | case NT_GNU_PROPERTY_TYPE_0: |
10393 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10394 | ||
718175fa JK |
10395 | case NT_GNU_BUILD_ID: |
10396 | return elfobj_grok_gnu_build_id (abfd, note); | |
10397 | } | |
10398 | } | |
10399 | ||
e21e5835 NC |
10400 | static bfd_boolean |
10401 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10402 | { | |
10403 | struct sdt_note *cur = | |
7a6e0d89 AM |
10404 | (struct sdt_note *) bfd_alloc (abfd, |
10405 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10406 | |
10407 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10408 | cur->size = (bfd_size_type) note->descsz; | |
10409 | memcpy (cur->data, note->descdata, note->descsz); | |
10410 | ||
10411 | elf_tdata (abfd)->sdt_note_head = cur; | |
10412 | ||
10413 | return TRUE; | |
10414 | } | |
10415 | ||
10416 | static bfd_boolean | |
10417 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10418 | { | |
10419 | switch (note->type) | |
10420 | { | |
10421 | case NT_STAPSDT: | |
10422 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10423 | ||
10424 | default: | |
10425 | return TRUE; | |
10426 | } | |
10427 | } | |
10428 | ||
aa1ed4a9 JB |
10429 | static bfd_boolean |
10430 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10431 | { | |
10432 | size_t offset; | |
10433 | ||
b5430a3c | 10434 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10435 | { |
b5430a3c | 10436 | case ELFCLASS32: |
0064d223 JB |
10437 | if (note->descsz < 108) |
10438 | return FALSE; | |
aa1ed4a9 JB |
10439 | break; |
10440 | ||
b5430a3c | 10441 | case ELFCLASS64: |
0064d223 JB |
10442 | if (note->descsz < 120) |
10443 | return FALSE; | |
aa1ed4a9 JB |
10444 | break; |
10445 | ||
10446 | default: | |
10447 | return FALSE; | |
10448 | } | |
10449 | ||
0064d223 JB |
10450 | /* Check for version 1 in pr_version. */ |
10451 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10452 | return FALSE; | |
80a04378 | 10453 | |
0064d223 JB |
10454 | offset = 4; |
10455 | ||
10456 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10457 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10458 | offset += 4; |
10459 | else | |
10460 | { | |
10461 | offset += 4; /* Padding before pr_psinfosz. */ | |
10462 | offset += 8; | |
10463 | } | |
10464 | ||
aa1ed4a9 JB |
10465 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10466 | elf_tdata (abfd)->core->program | |
10467 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10468 | offset += 17; | |
10469 | ||
10470 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10471 | elf_tdata (abfd)->core->command | |
10472 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10473 | offset += 81; |
10474 | ||
10475 | /* Padding before pr_pid. */ | |
10476 | offset += 2; | |
10477 | ||
10478 | /* The pr_pid field was added in version "1a". */ | |
10479 | if (note->descsz < offset + 4) | |
10480 | return TRUE; | |
10481 | ||
10482 | elf_tdata (abfd)->core->pid | |
10483 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10484 | |
10485 | return TRUE; | |
10486 | } | |
10487 | ||
10488 | static bfd_boolean | |
10489 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10490 | { | |
10491 | size_t offset; | |
10492 | size_t size; | |
24d3e51b | 10493 | size_t min_size; |
aa1ed4a9 | 10494 | |
24d3e51b NC |
10495 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10496 | Also compute minimum size of this note. */ | |
b5430a3c | 10497 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10498 | { |
b5430a3c | 10499 | case ELFCLASS32: |
24d3e51b NC |
10500 | offset = 4 + 4; |
10501 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10502 | break; |
10503 | ||
b5430a3c | 10504 | case ELFCLASS64: |
24d3e51b NC |
10505 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10506 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10507 | break; |
10508 | ||
10509 | default: | |
10510 | return FALSE; | |
10511 | } | |
10512 | ||
24d3e51b NC |
10513 | if (note->descsz < min_size) |
10514 | return FALSE; | |
10515 | ||
10516 | /* Check for version 1 in pr_version. */ | |
10517 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10518 | return FALSE; | |
aa1ed4a9 | 10519 | |
24d3e51b NC |
10520 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10521 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10522 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10523 | { |
10524 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10525 | offset += 4 * 2; | |
10526 | } | |
b5430a3c | 10527 | else |
24d3e51b NC |
10528 | { |
10529 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10530 | offset += 8 * 2; | |
10531 | } | |
aa1ed4a9 | 10532 | |
24d3e51b | 10533 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10534 | offset += 4; |
10535 | ||
24d3e51b | 10536 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10537 | if (elf_tdata (abfd)->core->signal == 0) |
10538 | elf_tdata (abfd)->core->signal | |
10539 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10540 | offset += 4; | |
10541 | ||
24d3e51b | 10542 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10543 | elf_tdata (abfd)->core->lwpid |
10544 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10545 | offset += 4; | |
10546 | ||
24d3e51b | 10547 | /* Padding before pr_reg. */ |
b5430a3c | 10548 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10549 | offset += 4; |
10550 | ||
24d3e51b NC |
10551 | /* Make sure that there is enough data remaining in the note. */ |
10552 | if ((note->descsz - offset) < size) | |
10553 | return FALSE; | |
10554 | ||
aa1ed4a9 JB |
10555 | /* Make a ".reg/999" section and a ".reg" section. */ |
10556 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10557 | size, note->descpos + offset); | |
10558 | } | |
10559 | ||
10560 | static bfd_boolean | |
10561 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10562 | { | |
544c67cd JB |
10563 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10564 | ||
aa1ed4a9 JB |
10565 | switch (note->type) |
10566 | { | |
10567 | case NT_PRSTATUS: | |
544c67cd JB |
10568 | if (bed->elf_backend_grok_freebsd_prstatus) |
10569 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10570 | return TRUE; | |
aa1ed4a9 JB |
10571 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10572 | ||
10573 | case NT_FPREGSET: | |
10574 | return elfcore_grok_prfpreg (abfd, note); | |
10575 | ||
10576 | case NT_PRPSINFO: | |
10577 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10578 | ||
10579 | case NT_FREEBSD_THRMISC: | |
10580 | if (note->namesz == 8) | |
10581 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10582 | else | |
10583 | return TRUE; | |
10584 | ||
ddb2bbcf JB |
10585 | case NT_FREEBSD_PROCSTAT_PROC: |
10586 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10587 | note); | |
10588 | ||
10589 | case NT_FREEBSD_PROCSTAT_FILES: | |
10590 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10591 | note); | |
10592 | ||
10593 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10594 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10595 | note); | |
10596 | ||
3350c5f5 | 10597 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10598 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10599 | |
aa1ed4a9 JB |
10600 | case NT_X86_XSTATE: |
10601 | if (note->namesz == 8) | |
10602 | return elfcore_grok_xstatereg (abfd, note); | |
10603 | else | |
10604 | return TRUE; | |
10605 | ||
e6f3b9c3 JB |
10606 | case NT_FREEBSD_PTLWPINFO: |
10607 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10608 | note); | |
10609 | ||
6d5be5d6 JB |
10610 | case NT_ARM_VFP: |
10611 | return elfcore_grok_arm_vfp (abfd, note); | |
10612 | ||
aa1ed4a9 JB |
10613 | default: |
10614 | return TRUE; | |
10615 | } | |
10616 | } | |
10617 | ||
b34976b6 | 10618 | static bfd_boolean |
217aa764 | 10619 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10620 | { |
10621 | char *cp; | |
10622 | ||
10623 | cp = strchr (note->namedata, '@'); | |
10624 | if (cp != NULL) | |
10625 | { | |
d2b64500 | 10626 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10627 | return TRUE; |
50b2bdb7 | 10628 | } |
b34976b6 | 10629 | return FALSE; |
50b2bdb7 AM |
10630 | } |
10631 | ||
b34976b6 | 10632 | static bfd_boolean |
217aa764 | 10633 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10634 | { |
80a04378 NC |
10635 | if (note->descsz <= 0x7c + 31) |
10636 | return FALSE; | |
10637 | ||
50b2bdb7 | 10638 | /* Signal number at offset 0x08. */ |
228e534f | 10639 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10640 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10641 | ||
10642 | /* Process ID at offset 0x50. */ | |
228e534f | 10643 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10644 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10645 | ||
10646 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10647 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10648 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10649 | ||
7720ba9f MK |
10650 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10651 | note); | |
50b2bdb7 AM |
10652 | } |
10653 | ||
b34976b6 | 10654 | static bfd_boolean |
217aa764 | 10655 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10656 | { |
10657 | int lwp; | |
10658 | ||
10659 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10660 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10661 | |
58e07198 | 10662 | switch (note->type) |
50b2bdb7 | 10663 | { |
58e07198 | 10664 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10665 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10666 | find this note before any of the others, which is fine, |
10667 | since the kernel writes this note out first when it | |
10668 | creates a core file. */ | |
50b2bdb7 | 10669 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10670 | #ifdef NT_NETBSDCORE_AUXV |
10671 | case NT_NETBSDCORE_AUXV: | |
10672 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10673 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
10674 | #endif | |
10675 | default: | |
10676 | break; | |
50b2bdb7 AM |
10677 | } |
10678 | ||
58e07198 | 10679 | /* As of March 2017 there are no other machine-independent notes |
b4db1224 JT |
10680 | defined for NetBSD core files. If the note type is less |
10681 | than the start of the machine-dependent note types, we don't | |
10682 | understand it. */ | |
47d9a591 | 10683 | |
b4db1224 | 10684 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10685 | return TRUE; |
50b2bdb7 AM |
10686 | |
10687 | ||
10688 | switch (bfd_get_arch (abfd)) | |
10689 | { | |
08a40648 AM |
10690 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10691 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10692 | |
10693 | case bfd_arch_alpha: | |
10694 | case bfd_arch_sparc: | |
10695 | switch (note->type) | |
08a40648 AM |
10696 | { |
10697 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10698 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10699 | |
08a40648 AM |
10700 | case NT_NETBSDCORE_FIRSTMACH+2: |
10701 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10702 | |
08a40648 AM |
10703 | default: |
10704 | return TRUE; | |
10705 | } | |
50b2bdb7 | 10706 | |
58e07198 CZ |
10707 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
10708 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
10709 | structure which lacks GBR. */ | |
10710 | ||
10711 | case bfd_arch_sh: | |
10712 | switch (note->type) | |
10713 | { | |
10714 | case NT_NETBSDCORE_FIRSTMACH+3: | |
10715 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10716 | ||
10717 | case NT_NETBSDCORE_FIRSTMACH+5: | |
10718 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10719 | ||
10720 | default: | |
10721 | return TRUE; | |
10722 | } | |
10723 | ||
08a40648 AM |
10724 | /* On all other arch's, PT_GETREGS == mach+1 and |
10725 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10726 | |
10727 | default: | |
10728 | switch (note->type) | |
08a40648 AM |
10729 | { |
10730 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10731 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10732 | |
08a40648 AM |
10733 | case NT_NETBSDCORE_FIRSTMACH+3: |
10734 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10735 | |
08a40648 AM |
10736 | default: |
10737 | return TRUE; | |
10738 | } | |
50b2bdb7 AM |
10739 | } |
10740 | /* NOTREACHED */ | |
10741 | } | |
10742 | ||
67cc5033 MK |
10743 | static bfd_boolean |
10744 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10745 | { | |
80a04378 NC |
10746 | if (note->descsz <= 0x48 + 31) |
10747 | return FALSE; | |
10748 | ||
67cc5033 | 10749 | /* Signal number at offset 0x08. */ |
228e534f | 10750 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10751 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10752 | ||
10753 | /* Process ID at offset 0x20. */ | |
228e534f | 10754 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10755 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10756 | ||
10757 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10758 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10759 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10760 | ||
10761 | return TRUE; | |
10762 | } | |
10763 | ||
10764 | static bfd_boolean | |
10765 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10766 | { | |
10767 | if (note->type == NT_OPENBSD_PROCINFO) | |
10768 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10769 | ||
10770 | if (note->type == NT_OPENBSD_REGS) | |
10771 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10772 | ||
10773 | if (note->type == NT_OPENBSD_FPREGS) | |
10774 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10775 | ||
10776 | if (note->type == NT_OPENBSD_XFPREGS) | |
10777 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10778 | ||
10779 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 10780 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
10781 | |
10782 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10783 | { | |
10784 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10785 | SEC_HAS_CONTENTS); | |
10786 | ||
10787 | if (sect == NULL) | |
10788 | return FALSE; | |
10789 | sect->size = note->descsz; | |
10790 | sect->filepos = note->descpos; | |
10791 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10792 | ||
10793 | return TRUE; | |
10794 | } | |
10795 | ||
10796 | return TRUE; | |
10797 | } | |
10798 | ||
07c6e936 | 10799 | static bfd_boolean |
d3fd4074 | 10800 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10801 | { |
10802 | void *ddata = note->descdata; | |
10803 | char buf[100]; | |
10804 | char *name; | |
10805 | asection *sect; | |
f8843e87 AM |
10806 | short sig; |
10807 | unsigned flags; | |
07c6e936 | 10808 | |
80a04378 NC |
10809 | if (note->descsz < 16) |
10810 | return FALSE; | |
10811 | ||
07c6e936 | 10812 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10813 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10814 | |
f8843e87 AM |
10815 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10816 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10817 | ||
10818 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10819 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10820 | |
10821 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10822 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10823 | { | |
228e534f AM |
10824 | elf_tdata (abfd)->core->signal = sig; |
10825 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10826 | } |
07c6e936 | 10827 | |
f8843e87 AM |
10828 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10829 | do not come from signals so we make sure we set the current | |
10830 | thread just in case. */ | |
10831 | if (flags & 0x00000080) | |
228e534f | 10832 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10833 | |
10834 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10835 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10836 | |
a50b1753 | 10837 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10838 | if (name == NULL) |
10839 | return FALSE; | |
10840 | strcpy (name, buf); | |
10841 | ||
117ed4f8 | 10842 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10843 | if (sect == NULL) |
10844 | return FALSE; | |
10845 | ||
07d6d2b8 AM |
10846 | sect->size = note->descsz; |
10847 | sect->filepos = note->descpos; | |
07c6e936 NC |
10848 | sect->alignment_power = 2; |
10849 | ||
10850 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10851 | } | |
10852 | ||
10853 | static bfd_boolean | |
d69f560c KW |
10854 | elfcore_grok_nto_regs (bfd *abfd, |
10855 | Elf_Internal_Note *note, | |
d3fd4074 | 10856 | long tid, |
d69f560c | 10857 | char *base) |
07c6e936 NC |
10858 | { |
10859 | char buf[100]; | |
10860 | char *name; | |
10861 | asection *sect; | |
10862 | ||
d69f560c | 10863 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10864 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10865 | |
a50b1753 | 10866 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10867 | if (name == NULL) |
10868 | return FALSE; | |
10869 | strcpy (name, buf); | |
10870 | ||
117ed4f8 | 10871 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10872 | if (sect == NULL) |
10873 | return FALSE; | |
10874 | ||
07d6d2b8 AM |
10875 | sect->size = note->descsz; |
10876 | sect->filepos = note->descpos; | |
07c6e936 NC |
10877 | sect->alignment_power = 2; |
10878 | ||
f8843e87 | 10879 | /* This is the current thread. */ |
228e534f | 10880 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10881 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10882 | |
10883 | return TRUE; | |
07c6e936 NC |
10884 | } |
10885 | ||
10886 | #define BFD_QNT_CORE_INFO 7 | |
10887 | #define BFD_QNT_CORE_STATUS 8 | |
10888 | #define BFD_QNT_CORE_GREG 9 | |
10889 | #define BFD_QNT_CORE_FPREG 10 | |
10890 | ||
10891 | static bfd_boolean | |
217aa764 | 10892 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10893 | { |
10894 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10895 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10896 | function. */ |
d3fd4074 | 10897 | static long tid = 1; |
07c6e936 NC |
10898 | |
10899 | switch (note->type) | |
10900 | { | |
d69f560c KW |
10901 | case BFD_QNT_CORE_INFO: |
10902 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10903 | case BFD_QNT_CORE_STATUS: | |
10904 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10905 | case BFD_QNT_CORE_GREG: | |
10906 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10907 | case BFD_QNT_CORE_FPREG: | |
10908 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10909 | default: | |
10910 | return TRUE; | |
07c6e936 NC |
10911 | } |
10912 | } | |
10913 | ||
b15fa79e AM |
10914 | static bfd_boolean |
10915 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10916 | { | |
10917 | char *name; | |
10918 | asection *sect; | |
10919 | size_t len; | |
10920 | ||
10921 | /* Use note name as section name. */ | |
10922 | len = note->namesz; | |
a50b1753 | 10923 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10924 | if (name == NULL) |
10925 | return FALSE; | |
10926 | memcpy (name, note->namedata, len); | |
10927 | name[len - 1] = '\0'; | |
10928 | ||
10929 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10930 | if (sect == NULL) | |
10931 | return FALSE; | |
10932 | ||
07d6d2b8 AM |
10933 | sect->size = note->descsz; |
10934 | sect->filepos = note->descpos; | |
b15fa79e AM |
10935 | sect->alignment_power = 1; |
10936 | ||
10937 | return TRUE; | |
10938 | } | |
10939 | ||
7c76fa91 MS |
10940 | /* Function: elfcore_write_note |
10941 | ||
47d9a591 | 10942 | Inputs: |
a39f3346 | 10943 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10944 | name of note |
10945 | type of note | |
10946 | data for note | |
10947 | size of data for note | |
10948 | ||
a39f3346 AM |
10949 | Writes note to end of buffer. ELF64 notes are written exactly as |
10950 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10951 | that they ought to have 8-byte namesz and descsz field, and have | |
10952 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10953 | ||
7c76fa91 | 10954 | Return: |
a39f3346 | 10955 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10956 | |
10957 | char * | |
a39f3346 | 10958 | elfcore_write_note (bfd *abfd, |
217aa764 | 10959 | char *buf, |
a39f3346 | 10960 | int *bufsiz, |
217aa764 | 10961 | const char *name, |
a39f3346 | 10962 | int type, |
217aa764 | 10963 | const void *input, |
a39f3346 | 10964 | int size) |
7c76fa91 MS |
10965 | { |
10966 | Elf_External_Note *xnp; | |
d4c88bbb | 10967 | size_t namesz; |
d4c88bbb | 10968 | size_t newspace; |
a39f3346 | 10969 | char *dest; |
7c76fa91 | 10970 | |
d4c88bbb | 10971 | namesz = 0; |
d4c88bbb | 10972 | if (name != NULL) |
a39f3346 | 10973 | namesz = strlen (name) + 1; |
d4c88bbb | 10974 | |
a39f3346 | 10975 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 10976 | |
a50b1753 | 10977 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
10978 | if (buf == NULL) |
10979 | return buf; | |
a39f3346 | 10980 | dest = buf + *bufsiz; |
7c76fa91 MS |
10981 | *bufsiz += newspace; |
10982 | xnp = (Elf_External_Note *) dest; | |
10983 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
10984 | H_PUT_32 (abfd, size, xnp->descsz); | |
10985 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
10986 | dest = xnp->name; |
10987 | if (name != NULL) | |
10988 | { | |
10989 | memcpy (dest, name, namesz); | |
10990 | dest += namesz; | |
a39f3346 | 10991 | while (namesz & 3) |
d4c88bbb AM |
10992 | { |
10993 | *dest++ = '\0'; | |
a39f3346 | 10994 | ++namesz; |
d4c88bbb AM |
10995 | } |
10996 | } | |
10997 | memcpy (dest, input, size); | |
a39f3346 AM |
10998 | dest += size; |
10999 | while (size & 3) | |
11000 | { | |
11001 | *dest++ = '\0'; | |
11002 | ++size; | |
11003 | } | |
11004 | return buf; | |
7c76fa91 MS |
11005 | } |
11006 | ||
602f1657 AM |
11007 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11008 | possible string truncation. The "truncation" is not a bug. We | |
11009 | have an external representation of structs with fields that are not | |
11010 | necessarily NULL terminated and corresponding internal | |
11011 | representation fields that are one larger so that they can always | |
11012 | be NULL terminated. | |
11013 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11014 | diagnostics inside functions, giving a hard error if you try to use | |
11015 | the finer control available with later versions. | |
11016 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11017 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11018 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11019 | (*) Depending on your system header files! */ | |
d99b4b92 | 11020 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11021 | # pragma GCC diagnostic push |
11022 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11023 | #endif |
7c76fa91 | 11024 | char * |
217aa764 AM |
11025 | elfcore_write_prpsinfo (bfd *abfd, |
11026 | char *buf, | |
11027 | int *bufsiz, | |
11028 | const char *fname, | |
11029 | const char *psargs) | |
7c76fa91 | 11030 | { |
183e98be AM |
11031 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11032 | ||
11033 | if (bed->elf_backend_write_core_note != NULL) | |
11034 | { | |
11035 | char *ret; | |
11036 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11037 | NT_PRPSINFO, fname, psargs); | |
11038 | if (ret != NULL) | |
11039 | return ret; | |
11040 | } | |
7c76fa91 | 11041 | |
1f20dca5 | 11042 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11043 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11044 | if (bed->s->elfclass == ELFCLASS32) |
11045 | { | |
602f1657 | 11046 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11047 | psinfo32_t data; |
11048 | int note_type = NT_PSINFO; | |
602f1657 | 11049 | # else |
183e98be AM |
11050 | prpsinfo32_t data; |
11051 | int note_type = NT_PRPSINFO; | |
602f1657 | 11052 | # endif |
183e98be AM |
11053 | |
11054 | memset (&data, 0, sizeof (data)); | |
11055 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11056 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11057 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11058 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11059 | } |
11060 | else | |
602f1657 | 11061 | # endif |
183e98be | 11062 | { |
602f1657 | 11063 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11064 | psinfo_t data; |
11065 | int note_type = NT_PSINFO; | |
602f1657 | 11066 | # else |
183e98be AM |
11067 | prpsinfo_t data; |
11068 | int note_type = NT_PRPSINFO; | |
602f1657 | 11069 | # endif |
7c76fa91 | 11070 | |
183e98be AM |
11071 | memset (&data, 0, sizeof (data)); |
11072 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11073 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11074 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11075 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11076 | } |
7c76fa91 MS |
11077 | #endif /* PSINFO_T or PRPSINFO_T */ |
11078 | ||
1f20dca5 UW |
11079 | free (buf); |
11080 | return NULL; | |
11081 | } | |
d99b4b92 | 11082 | #if GCC_VERSION >= 8000 |
602f1657 | 11083 | # pragma GCC diagnostic pop |
d99b4b92 | 11084 | #endif |
1f20dca5 | 11085 | |
70a38d42 SDJ |
11086 | char * |
11087 | elfcore_write_linux_prpsinfo32 | |
11088 | (bfd *abfd, char *buf, int *bufsiz, | |
11089 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11090 | { | |
a2f63b2e MR |
11091 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11092 | { | |
11093 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11094 | ||
11095 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11096 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11097 | &data, sizeof (data)); | |
11098 | } | |
11099 | else | |
11100 | { | |
11101 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11102 | |
a2f63b2e MR |
11103 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11104 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11105 | &data, sizeof (data)); | |
11106 | } | |
70a38d42 SDJ |
11107 | } |
11108 | ||
11109 | char * | |
11110 | elfcore_write_linux_prpsinfo64 | |
11111 | (bfd *abfd, char *buf, int *bufsiz, | |
11112 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11113 | { | |
3c9a7b0d MR |
11114 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11115 | { | |
11116 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11117 | ||
11118 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11119 | return elfcore_write_note (abfd, buf, bufsiz, | |
11120 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11121 | } | |
11122 | else | |
11123 | { | |
11124 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11125 | |
3c9a7b0d MR |
11126 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11127 | return elfcore_write_note (abfd, buf, bufsiz, | |
11128 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11129 | } | |
70a38d42 SDJ |
11130 | } |
11131 | ||
7c76fa91 | 11132 | char * |
217aa764 AM |
11133 | elfcore_write_prstatus (bfd *abfd, |
11134 | char *buf, | |
11135 | int *bufsiz, | |
11136 | long pid, | |
11137 | int cursig, | |
11138 | const void *gregs) | |
7c76fa91 | 11139 | { |
183e98be | 11140 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11141 | |
183e98be AM |
11142 | if (bed->elf_backend_write_core_note != NULL) |
11143 | { | |
11144 | char *ret; | |
11145 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11146 | NT_PRSTATUS, | |
11147 | pid, cursig, gregs); | |
11148 | if (ret != NULL) | |
11149 | return ret; | |
11150 | } | |
11151 | ||
1f20dca5 | 11152 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11153 | #if defined (HAVE_PRSTATUS32_T) |
11154 | if (bed->s->elfclass == ELFCLASS32) | |
11155 | { | |
11156 | prstatus32_t prstat; | |
11157 | ||
11158 | memset (&prstat, 0, sizeof (prstat)); | |
11159 | prstat.pr_pid = pid; | |
11160 | prstat.pr_cursig = cursig; | |
11161 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11162 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11163 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11164 | } | |
11165 | else | |
11166 | #endif | |
11167 | { | |
11168 | prstatus_t prstat; | |
11169 | ||
11170 | memset (&prstat, 0, sizeof (prstat)); | |
11171 | prstat.pr_pid = pid; | |
11172 | prstat.pr_cursig = cursig; | |
11173 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11174 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11175 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11176 | } | |
7c76fa91 MS |
11177 | #endif /* HAVE_PRSTATUS_T */ |
11178 | ||
1f20dca5 UW |
11179 | free (buf); |
11180 | return NULL; | |
11181 | } | |
11182 | ||
51316059 MS |
11183 | #if defined (HAVE_LWPSTATUS_T) |
11184 | char * | |
217aa764 AM |
11185 | elfcore_write_lwpstatus (bfd *abfd, |
11186 | char *buf, | |
11187 | int *bufsiz, | |
11188 | long pid, | |
11189 | int cursig, | |
11190 | const void *gregs) | |
51316059 MS |
11191 | { |
11192 | lwpstatus_t lwpstat; | |
183e98be | 11193 | const char *note_name = "CORE"; |
51316059 MS |
11194 | |
11195 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11196 | lwpstat.pr_lwpid = pid >> 16; | |
11197 | lwpstat.pr_cursig = cursig; | |
11198 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11199 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11200 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11201 | #if !defined(gregs) | |
11202 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11203 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11204 | #else | |
11205 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11206 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11207 | #endif | |
11208 | #endif | |
47d9a591 | 11209 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11210 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11211 | } | |
11212 | #endif /* HAVE_LWPSTATUS_T */ | |
11213 | ||
7c76fa91 MS |
11214 | #if defined (HAVE_PSTATUS_T) |
11215 | char * | |
217aa764 AM |
11216 | elfcore_write_pstatus (bfd *abfd, |
11217 | char *buf, | |
11218 | int *bufsiz, | |
11219 | long pid, | |
6c10990d NC |
11220 | int cursig ATTRIBUTE_UNUSED, |
11221 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11222 | { |
183e98be AM |
11223 | const char *note_name = "CORE"; |
11224 | #if defined (HAVE_PSTATUS32_T) | |
11225 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11226 | |
183e98be AM |
11227 | if (bed->s->elfclass == ELFCLASS32) |
11228 | { | |
11229 | pstatus32_t pstat; | |
11230 | ||
11231 | memset (&pstat, 0, sizeof (pstat)); | |
11232 | pstat.pr_pid = pid & 0xffff; | |
11233 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11234 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11235 | return buf; | |
11236 | } | |
11237 | else | |
11238 | #endif | |
11239 | { | |
11240 | pstatus_t pstat; | |
11241 | ||
11242 | memset (&pstat, 0, sizeof (pstat)); | |
11243 | pstat.pr_pid = pid & 0xffff; | |
11244 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11245 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11246 | return buf; | |
11247 | } | |
7c76fa91 MS |
11248 | } |
11249 | #endif /* HAVE_PSTATUS_T */ | |
11250 | ||
11251 | char * | |
217aa764 AM |
11252 | elfcore_write_prfpreg (bfd *abfd, |
11253 | char *buf, | |
11254 | int *bufsiz, | |
11255 | const void *fpregs, | |
11256 | int size) | |
7c76fa91 | 11257 | { |
183e98be | 11258 | const char *note_name = "CORE"; |
47d9a591 | 11259 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11260 | note_name, NT_FPREGSET, fpregs, size); |
11261 | } | |
11262 | ||
11263 | char * | |
217aa764 AM |
11264 | elfcore_write_prxfpreg (bfd *abfd, |
11265 | char *buf, | |
11266 | int *bufsiz, | |
11267 | const void *xfpregs, | |
11268 | int size) | |
7c76fa91 MS |
11269 | { |
11270 | char *note_name = "LINUX"; | |
47d9a591 | 11271 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11272 | note_name, NT_PRXFPREG, xfpregs, size); |
11273 | } | |
11274 | ||
4339cae0 L |
11275 | char * |
11276 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11277 | const void *xfpregs, int size) | |
11278 | { | |
97de3545 JB |
11279 | char *note_name; |
11280 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11281 | note_name = "FreeBSD"; | |
11282 | else | |
11283 | note_name = "LINUX"; | |
4339cae0 L |
11284 | return elfcore_write_note (abfd, buf, bufsiz, |
11285 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11286 | } | |
11287 | ||
97753bd5 AM |
11288 | char * |
11289 | elfcore_write_ppc_vmx (bfd *abfd, | |
11290 | char *buf, | |
11291 | int *bufsiz, | |
11292 | const void *ppc_vmx, | |
11293 | int size) | |
11294 | { | |
11295 | char *note_name = "LINUX"; | |
11296 | return elfcore_write_note (abfd, buf, bufsiz, | |
11297 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11298 | } | |
11299 | ||
89eeb0bc LM |
11300 | char * |
11301 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11302 | char *buf, |
11303 | int *bufsiz, | |
11304 | const void *ppc_vsx, | |
11305 | int size) | |
89eeb0bc LM |
11306 | { |
11307 | char *note_name = "LINUX"; | |
11308 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11309 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11310 | } |
11311 | ||
cb2366c1 EBM |
11312 | char * |
11313 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11314 | char *buf, |
11315 | int *bufsiz, | |
11316 | const void *ppc_tar, | |
11317 | int size) | |
cb2366c1 EBM |
11318 | { |
11319 | char *note_name = "LINUX"; | |
11320 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11321 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11322 | } |
11323 | ||
11324 | char * | |
11325 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11326 | char *buf, |
11327 | int *bufsiz, | |
11328 | const void *ppc_ppr, | |
11329 | int size) | |
cb2366c1 EBM |
11330 | { |
11331 | char *note_name = "LINUX"; | |
11332 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11333 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11334 | } |
11335 | ||
11336 | char * | |
11337 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11338 | char *buf, |
11339 | int *bufsiz, | |
11340 | const void *ppc_dscr, | |
11341 | int size) | |
cb2366c1 EBM |
11342 | { |
11343 | char *note_name = "LINUX"; | |
11344 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11345 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11346 | } |
11347 | ||
11348 | char * | |
11349 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11350 | char *buf, |
11351 | int *bufsiz, | |
11352 | const void *ppc_ebb, | |
11353 | int size) | |
cb2366c1 EBM |
11354 | { |
11355 | char *note_name = "LINUX"; | |
11356 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11357 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11358 | } |
11359 | ||
11360 | char * | |
11361 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11362 | char *buf, |
11363 | int *bufsiz, | |
11364 | const void *ppc_pmu, | |
11365 | int size) | |
cb2366c1 EBM |
11366 | { |
11367 | char *note_name = "LINUX"; | |
11368 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11369 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11370 | } |
11371 | ||
11372 | char * | |
11373 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11374 | char *buf, |
11375 | int *bufsiz, | |
11376 | const void *ppc_tm_cgpr, | |
11377 | int size) | |
cb2366c1 EBM |
11378 | { |
11379 | char *note_name = "LINUX"; | |
11380 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11381 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11382 | } |
11383 | ||
11384 | char * | |
11385 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11386 | char *buf, |
11387 | int *bufsiz, | |
11388 | const void *ppc_tm_cfpr, | |
11389 | int size) | |
cb2366c1 EBM |
11390 | { |
11391 | char *note_name = "LINUX"; | |
11392 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11393 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11394 | } |
11395 | ||
11396 | char * | |
11397 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11398 | char *buf, |
11399 | int *bufsiz, | |
11400 | const void *ppc_tm_cvmx, | |
11401 | int size) | |
cb2366c1 EBM |
11402 | { |
11403 | char *note_name = "LINUX"; | |
11404 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11405 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11406 | } |
11407 | ||
11408 | char * | |
11409 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11410 | char *buf, |
11411 | int *bufsiz, | |
11412 | const void *ppc_tm_cvsx, | |
11413 | int size) | |
cb2366c1 EBM |
11414 | { |
11415 | char *note_name = "LINUX"; | |
11416 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11417 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11418 | } |
11419 | ||
11420 | char * | |
11421 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11422 | char *buf, |
11423 | int *bufsiz, | |
11424 | const void *ppc_tm_spr, | |
11425 | int size) | |
cb2366c1 EBM |
11426 | { |
11427 | char *note_name = "LINUX"; | |
11428 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11429 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11430 | } |
11431 | ||
11432 | char * | |
11433 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11434 | char *buf, |
11435 | int *bufsiz, | |
11436 | const void *ppc_tm_ctar, | |
11437 | int size) | |
cb2366c1 EBM |
11438 | { |
11439 | char *note_name = "LINUX"; | |
11440 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11441 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11442 | } |
11443 | ||
11444 | char * | |
11445 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11446 | char *buf, |
11447 | int *bufsiz, | |
11448 | const void *ppc_tm_cppr, | |
11449 | int size) | |
cb2366c1 EBM |
11450 | { |
11451 | char *note_name = "LINUX"; | |
11452 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11453 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11454 | } |
11455 | ||
11456 | char * | |
11457 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11458 | char *buf, |
11459 | int *bufsiz, | |
11460 | const void *ppc_tm_cdscr, | |
11461 | int size) | |
cb2366c1 EBM |
11462 | { |
11463 | char *note_name = "LINUX"; | |
11464 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11465 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11466 | } |
11467 | ||
0675e188 UW |
11468 | static char * |
11469 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11470 | char *buf, | |
11471 | int *bufsiz, | |
11472 | const void *s390_high_gprs, | |
11473 | int size) | |
11474 | { | |
11475 | char *note_name = "LINUX"; | |
11476 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11477 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11478 | s390_high_gprs, size); |
11479 | } | |
11480 | ||
d7eeb400 MS |
11481 | char * |
11482 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11483 | char *buf, |
11484 | int *bufsiz, | |
11485 | const void *s390_timer, | |
11486 | int size) | |
d7eeb400 MS |
11487 | { |
11488 | char *note_name = "LINUX"; | |
11489 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11490 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11491 | } |
11492 | ||
11493 | char * | |
11494 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11495 | char *buf, |
11496 | int *bufsiz, | |
11497 | const void *s390_todcmp, | |
11498 | int size) | |
d7eeb400 MS |
11499 | { |
11500 | char *note_name = "LINUX"; | |
11501 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11502 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11503 | } |
11504 | ||
11505 | char * | |
11506 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11507 | char *buf, |
11508 | int *bufsiz, | |
11509 | const void *s390_todpreg, | |
11510 | int size) | |
d7eeb400 MS |
11511 | { |
11512 | char *note_name = "LINUX"; | |
11513 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11514 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11515 | } |
11516 | ||
11517 | char * | |
11518 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11519 | char *buf, |
11520 | int *bufsiz, | |
11521 | const void *s390_ctrs, | |
11522 | int size) | |
d7eeb400 MS |
11523 | { |
11524 | char *note_name = "LINUX"; | |
11525 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11526 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11527 | } |
11528 | ||
11529 | char * | |
11530 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11531 | char *buf, |
11532 | int *bufsiz, | |
11533 | const void *s390_prefix, | |
11534 | int size) | |
d7eeb400 MS |
11535 | { |
11536 | char *note_name = "LINUX"; | |
11537 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11538 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11539 | } |
11540 | ||
355b81d9 UW |
11541 | char * |
11542 | elfcore_write_s390_last_break (bfd *abfd, | |
11543 | char *buf, | |
11544 | int *bufsiz, | |
11545 | const void *s390_last_break, | |
11546 | int size) | |
11547 | { | |
11548 | char *note_name = "LINUX"; | |
11549 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11550 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11551 | s390_last_break, size); |
11552 | } | |
11553 | ||
11554 | char * | |
11555 | elfcore_write_s390_system_call (bfd *abfd, | |
11556 | char *buf, | |
11557 | int *bufsiz, | |
11558 | const void *s390_system_call, | |
11559 | int size) | |
11560 | { | |
11561 | char *note_name = "LINUX"; | |
11562 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11563 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11564 | s390_system_call, size); |
11565 | } | |
11566 | ||
abb3f6cc NC |
11567 | char * |
11568 | elfcore_write_s390_tdb (bfd *abfd, | |
11569 | char *buf, | |
11570 | int *bufsiz, | |
11571 | const void *s390_tdb, | |
11572 | int size) | |
11573 | { | |
11574 | char *note_name = "LINUX"; | |
11575 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11576 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11577 | } |
11578 | ||
4ef9f41a AA |
11579 | char * |
11580 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11581 | char *buf, | |
11582 | int *bufsiz, | |
11583 | const void *s390_vxrs_low, | |
11584 | int size) | |
11585 | { | |
11586 | char *note_name = "LINUX"; | |
11587 | return elfcore_write_note (abfd, buf, bufsiz, | |
11588 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11589 | } | |
11590 | ||
11591 | char * | |
11592 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11593 | char *buf, | |
11594 | int *bufsiz, | |
11595 | const void *s390_vxrs_high, | |
11596 | int size) | |
11597 | { | |
11598 | char *note_name = "LINUX"; | |
11599 | return elfcore_write_note (abfd, buf, bufsiz, | |
11600 | note_name, NT_S390_VXRS_HIGH, | |
11601 | s390_vxrs_high, size); | |
11602 | } | |
11603 | ||
88ab90e8 AA |
11604 | char * |
11605 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11606 | char *buf, | |
11607 | int *bufsiz, | |
11608 | const void *s390_gs_cb, | |
11609 | int size) | |
11610 | { | |
11611 | char *note_name = "LINUX"; | |
11612 | return elfcore_write_note (abfd, buf, bufsiz, | |
11613 | note_name, NT_S390_GS_CB, | |
11614 | s390_gs_cb, size); | |
11615 | } | |
11616 | ||
11617 | char * | |
11618 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11619 | char *buf, | |
11620 | int *bufsiz, | |
11621 | const void *s390_gs_bc, | |
11622 | int size) | |
11623 | { | |
11624 | char *note_name = "LINUX"; | |
11625 | return elfcore_write_note (abfd, buf, bufsiz, | |
11626 | note_name, NT_S390_GS_BC, | |
11627 | s390_gs_bc, size); | |
11628 | } | |
11629 | ||
faa9a424 UW |
11630 | char * |
11631 | elfcore_write_arm_vfp (bfd *abfd, | |
11632 | char *buf, | |
11633 | int *bufsiz, | |
11634 | const void *arm_vfp, | |
11635 | int size) | |
11636 | { | |
11637 | char *note_name = "LINUX"; | |
11638 | return elfcore_write_note (abfd, buf, bufsiz, | |
11639 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11640 | } | |
11641 | ||
652451f8 YZ |
11642 | char * |
11643 | elfcore_write_aarch_tls (bfd *abfd, | |
11644 | char *buf, | |
11645 | int *bufsiz, | |
11646 | const void *aarch_tls, | |
11647 | int size) | |
11648 | { | |
11649 | char *note_name = "LINUX"; | |
11650 | return elfcore_write_note (abfd, buf, bufsiz, | |
11651 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11652 | } | |
11653 | ||
11654 | char * | |
11655 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11656 | char *buf, | |
11657 | int *bufsiz, | |
11658 | const void *aarch_hw_break, | |
11659 | int size) | |
11660 | { | |
11661 | char *note_name = "LINUX"; | |
11662 | return elfcore_write_note (abfd, buf, bufsiz, | |
11663 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11664 | } | |
11665 | ||
11666 | char * | |
11667 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11668 | char *buf, | |
11669 | int *bufsiz, | |
11670 | const void *aarch_hw_watch, | |
11671 | int size) | |
11672 | { | |
11673 | char *note_name = "LINUX"; | |
11674 | return elfcore_write_note (abfd, buf, bufsiz, | |
11675 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11676 | } | |
11677 | ||
ad1cc4e4 AH |
11678 | char * |
11679 | elfcore_write_aarch_sve (bfd *abfd, | |
11680 | char *buf, | |
11681 | int *bufsiz, | |
11682 | const void *aarch_sve, | |
11683 | int size) | |
11684 | { | |
11685 | char *note_name = "LINUX"; | |
11686 | return elfcore_write_note (abfd, buf, bufsiz, | |
11687 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11688 | } | |
11689 | ||
e6c3b5bf AH |
11690 | char * |
11691 | elfcore_write_aarch_pauth (bfd *abfd, | |
11692 | char *buf, | |
11693 | int *bufsiz, | |
11694 | const void *aarch_pauth, | |
11695 | int size) | |
11696 | { | |
11697 | char *note_name = "LINUX"; | |
11698 | return elfcore_write_note (abfd, buf, bufsiz, | |
11699 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11700 | } | |
11701 | ||
bb864ac1 CES |
11702 | char * |
11703 | elfcore_write_register_note (bfd *abfd, | |
11704 | char *buf, | |
11705 | int *bufsiz, | |
11706 | const char *section, | |
11707 | const void *data, | |
11708 | int size) | |
11709 | { | |
11710 | if (strcmp (section, ".reg2") == 0) | |
11711 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11712 | if (strcmp (section, ".reg-xfp") == 0) | |
11713 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11714 | if (strcmp (section, ".reg-xstate") == 0) |
11715 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11716 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11717 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11718 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11719 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11720 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11721 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11722 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11723 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11724 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11725 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11726 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11727 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11728 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11729 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11730 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11731 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11732 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11733 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11734 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11735 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11736 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11737 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11738 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11739 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11740 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11741 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11742 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11743 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11744 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11745 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11746 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11747 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11748 | if (strcmp (section, ".reg-s390-timer") == 0) |
11749 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11750 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11751 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11752 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11753 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11754 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11755 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11756 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11757 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11758 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11759 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11760 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11761 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11762 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11763 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11764 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11765 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11766 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11767 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11768 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11769 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11770 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11771 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11772 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11773 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11774 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11775 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11776 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11777 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11778 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11779 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11780 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11781 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
11782 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
11783 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11784 | return NULL; |
11785 | } | |
11786 | ||
b34976b6 | 11787 | static bfd_boolean |
276da9b3 L |
11788 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11789 | size_t align) | |
252b5132 | 11790 | { |
c044fabd | 11791 | char *p; |
252b5132 | 11792 | |
276da9b3 L |
11793 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11794 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11795 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11796 | align is less than 4, we use 4 byte alignment. */ | |
11797 | if (align < 4) | |
11798 | align = 4; | |
ef135d43 NC |
11799 | if (align != 4 && align != 8) |
11800 | return FALSE; | |
276da9b3 | 11801 | |
252b5132 RH |
11802 | p = buf; |
11803 | while (p < buf + size) | |
11804 | { | |
c044fabd | 11805 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11806 | Elf_Internal_Note in; |
11807 | ||
baea7ef1 AM |
11808 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11809 | return FALSE; | |
11810 | ||
dc810e39 | 11811 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11812 | |
dc810e39 | 11813 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11814 | in.namedata = xnp->name; |
baea7ef1 AM |
11815 | if (in.namesz > buf - in.namedata + size) |
11816 | return FALSE; | |
252b5132 | 11817 | |
dc810e39 | 11818 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11819 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11820 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11821 | if (in.descsz != 0 |
11822 | && (in.descdata >= buf + size | |
11823 | || in.descsz > buf - in.descdata + size)) | |
11824 | return FALSE; | |
252b5132 | 11825 | |
718175fa | 11826 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11827 | { |
718175fa JK |
11828 | default: |
11829 | return TRUE; | |
11830 | ||
11831 | case bfd_core: | |
f64e188b | 11832 | { |
8acbedd6 | 11833 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11834 | struct |
718175fa | 11835 | { |
f64e188b | 11836 | const char * string; |
8acbedd6 | 11837 | size_t len; |
f64e188b | 11838 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11839 | } |
f64e188b | 11840 | grokers[] = |
b15fa79e | 11841 | { |
8acbedd6 | 11842 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11843 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11844 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11845 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11846 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
864619bb KS |
11847 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
11848 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note) | |
f64e188b | 11849 | }; |
8acbedd6 | 11850 | #undef GROKER_ELEMENT |
f64e188b NC |
11851 | int i; |
11852 | ||
11853 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11854 | { |
11855 | if (in.namesz >= grokers[i].len | |
11856 | && strncmp (in.namedata, grokers[i].string, | |
11857 | grokers[i].len) == 0) | |
11858 | { | |
11859 | if (! grokers[i].func (abfd, & in)) | |
11860 | return FALSE; | |
11861 | break; | |
11862 | } | |
11863 | } | |
f64e188b NC |
11864 | break; |
11865 | } | |
718175fa JK |
11866 | |
11867 | case bfd_object: | |
11868 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11869 | { | |
11870 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11871 | return FALSE; | |
11872 | } | |
e21e5835 NC |
11873 | else if (in.namesz == sizeof "stapsdt" |
11874 | && strcmp (in.namedata, "stapsdt") == 0) | |
11875 | { | |
11876 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11877 | return FALSE; | |
11878 | } | |
718175fa | 11879 | break; |
08a40648 | 11880 | } |
252b5132 | 11881 | |
276da9b3 | 11882 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11883 | } |
11884 | ||
718175fa JK |
11885 | return TRUE; |
11886 | } | |
11887 | ||
864619bb | 11888 | bfd_boolean |
276da9b3 L |
11889 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11890 | size_t align) | |
718175fa JK |
11891 | { |
11892 | char *buf; | |
11893 | ||
957e1fc1 | 11894 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11895 | return TRUE; |
11896 | ||
11897 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11898 | return FALSE; | |
11899 | ||
f64e188b | 11900 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
11901 | if (buf == NULL) |
11902 | return FALSE; | |
11903 | ||
f64e188b NC |
11904 | /* PR 17512: file: ec08f814 |
11905 | 0-termintate the buffer so that string searches will not overflow. */ | |
11906 | buf[size] = 0; | |
11907 | ||
718175fa | 11908 | if (bfd_bread (buf, size, abfd) != size |
276da9b3 | 11909 | || !elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11910 | { |
11911 | free (buf); | |
11912 | return FALSE; | |
11913 | } | |
11914 | ||
252b5132 | 11915 | free (buf); |
b34976b6 | 11916 | return TRUE; |
252b5132 | 11917 | } |
98d8431c JB |
11918 | \f |
11919 | /* Providing external access to the ELF program header table. */ | |
11920 | ||
11921 | /* Return an upper bound on the number of bytes required to store a | |
11922 | copy of ABFD's program header table entries. Return -1 if an error | |
11923 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11924 | |
98d8431c | 11925 | long |
217aa764 | 11926 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11927 | { |
11928 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11929 | { | |
11930 | bfd_set_error (bfd_error_wrong_format); | |
11931 | return -1; | |
11932 | } | |
11933 | ||
936e320b | 11934 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11935 | } |
11936 | ||
98d8431c JB |
11937 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11938 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11939 | defined in include/elf/internal.h. To find out how large the | |
11940 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11941 | ||
11942 | Return the number of program header table entries read, or -1 if an | |
11943 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11944 | |
98d8431c | 11945 | int |
217aa764 | 11946 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11947 | { |
11948 | int num_phdrs; | |
11949 | ||
11950 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11951 | { | |
11952 | bfd_set_error (bfd_error_wrong_format); | |
11953 | return -1; | |
11954 | } | |
11955 | ||
11956 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
11957 | if (num_phdrs != 0) |
11958 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
11959 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
11960 | |
11961 | return num_phdrs; | |
11962 | } | |
ae4221d7 | 11963 | |
db6751f2 | 11964 | enum elf_reloc_type_class |
7e612e98 AM |
11965 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11966 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11967 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11968 | { |
11969 | return reloc_class_normal; | |
11970 | } | |
f8df10f4 | 11971 | |
47d9a591 | 11972 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11973 | relocation against a local symbol. */ |
11974 | ||
11975 | bfd_vma | |
217aa764 AM |
11976 | _bfd_elf_rela_local_sym (bfd *abfd, |
11977 | Elf_Internal_Sym *sym, | |
8517fae7 | 11978 | asection **psec, |
217aa764 | 11979 | Elf_Internal_Rela *rel) |
f8df10f4 | 11980 | { |
8517fae7 | 11981 | asection *sec = *psec; |
f8df10f4 JJ |
11982 | bfd_vma relocation; |
11983 | ||
6835821b AM |
11984 | relocation = (sec->output_section->vma |
11985 | + sec->output_offset | |
11986 | + sym->st_value); | |
f8df10f4 | 11987 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 11988 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 11989 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 11990 | { |
f8df10f4 | 11991 | rel->r_addend = |
8517fae7 | 11992 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 11993 | elf_section_data (sec)->sec_info, |
753731ee AM |
11994 | sym->st_value + rel->r_addend); |
11995 | if (sec != *psec) | |
11996 | { | |
11997 | /* If we have changed the section, and our original section is | |
11998 | marked with SEC_EXCLUDE, it means that the original | |
11999 | SEC_MERGE section has been completely subsumed in some | |
12000 | other SEC_MERGE section. In this case, we need to leave | |
12001 | some info around for --emit-relocs. */ | |
12002 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12003 | sec->kept_section = *psec; | |
12004 | sec = *psec; | |
12005 | } | |
8517fae7 AM |
12006 | rel->r_addend -= relocation; |
12007 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12008 | } |
12009 | return relocation; | |
12010 | } | |
c629eae0 JJ |
12011 | |
12012 | bfd_vma | |
217aa764 AM |
12013 | _bfd_elf_rel_local_sym (bfd *abfd, |
12014 | Elf_Internal_Sym *sym, | |
12015 | asection **psec, | |
12016 | bfd_vma addend) | |
47d9a591 | 12017 | { |
c629eae0 JJ |
12018 | asection *sec = *psec; |
12019 | ||
6835821b | 12020 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12021 | return sym->st_value + addend; |
12022 | ||
12023 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12024 | elf_section_data (sec)->sec_info, |
753731ee | 12025 | sym->st_value + addend); |
c629eae0 JJ |
12026 | } |
12027 | ||
37b01f6a DG |
12028 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12029 | the new offset within the section, based upon changes made to the | |
12030 | section. Returns -1 if the offset is now invalid. | |
12031 | The offset (in abnd out) is in target sized bytes, however big a | |
12032 | byte may be. */ | |
12033 | ||
c629eae0 | 12034 | bfd_vma |
217aa764 | 12035 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12036 | struct bfd_link_info *info, |
217aa764 AM |
12037 | asection *sec, |
12038 | bfd_vma offset) | |
c629eae0 | 12039 | { |
68bfbfcc | 12040 | switch (sec->sec_info_type) |
65765700 | 12041 | { |
dbaa2011 | 12042 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12043 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12044 | offset); | |
dbaa2011 | 12045 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12046 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12047 | |
65765700 | 12048 | default: |
310fd250 L |
12049 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12050 | { | |
37b01f6a | 12051 | /* Reverse the offset. */ |
310fd250 L |
12052 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12053 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12054 | |
12055 | /* address_size and sec->size are in octets. Convert | |
12056 | to bytes before subtracting the original offset. */ | |
12057 | offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset; | |
310fd250 | 12058 | } |
65765700 JJ |
12059 | return offset; |
12060 | } | |
c629eae0 | 12061 | } |
3333a7c3 RM |
12062 | \f |
12063 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12064 | reconstruct an ELF file by reading the segments out of remote memory | |
12065 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12066 | points to. If not null, *LOADBASEP is filled in with the difference | |
12067 | between the VMAs from which the segments were read, and the VMAs the | |
12068 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12069 | ||
12070 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12071 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12072 | should return zero on success or an `errno' code on failure. TEMPL must | |
12073 | be a BFD for an ELF target with the word size and byte order found in | |
12074 | the remote memory. */ | |
12075 | ||
12076 | bfd * | |
217aa764 AM |
12077 | bfd_elf_bfd_from_remote_memory |
12078 | (bfd *templ, | |
12079 | bfd_vma ehdr_vma, | |
f0a5d95a | 12080 | bfd_size_type size, |
217aa764 | 12081 | bfd_vma *loadbasep, |
fe78531d | 12082 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12083 | { |
12084 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12085 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12086 | } |
4c45e5c9 JJ |
12087 | \f |
12088 | long | |
c9727e01 AM |
12089 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12090 | long symcount ATTRIBUTE_UNUSED, | |
12091 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12092 | long dynsymcount, |
c9727e01 AM |
12093 | asymbol **dynsyms, |
12094 | asymbol **ret) | |
4c45e5c9 JJ |
12095 | { |
12096 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12097 | asection *relplt; | |
12098 | asymbol *s; | |
12099 | const char *relplt_name; | |
12100 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
12101 | arelent *p; | |
12102 | long count, i, n; | |
12103 | size_t size; | |
12104 | Elf_Internal_Shdr *hdr; | |
12105 | char *names; | |
12106 | asection *plt; | |
12107 | ||
8615f3f2 AM |
12108 | *ret = NULL; |
12109 | ||
90e3cdf2 JJ |
12110 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12111 | return 0; | |
12112 | ||
8615f3f2 AM |
12113 | if (dynsymcount <= 0) |
12114 | return 0; | |
12115 | ||
4c45e5c9 JJ |
12116 | if (!bed->plt_sym_val) |
12117 | return 0; | |
12118 | ||
12119 | relplt_name = bed->relplt_name; | |
12120 | if (relplt_name == NULL) | |
d35fd659 | 12121 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12122 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12123 | if (relplt == NULL) | |
12124 | return 0; | |
12125 | ||
12126 | hdr = &elf_section_data (relplt)->this_hdr; | |
12127 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12128 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12129 | return 0; | |
12130 | ||
12131 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12132 | if (plt == NULL) | |
12133 | return 0; | |
12134 | ||
12135 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 12136 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
12137 | return -1; |
12138 | ||
eea6121a | 12139 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12140 | size = count * sizeof (asymbol); |
12141 | p = relplt->relocation; | |
cb53bf42 | 12142 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12143 | { |
12144 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12145 | if (p->addend != 0) | |
12146 | { | |
12147 | #ifdef BFD64 | |
12148 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12149 | #else | |
12150 | size += sizeof ("+0x") - 1 + 8; | |
12151 | #endif | |
12152 | } | |
12153 | } | |
4c45e5c9 | 12154 | |
a50b1753 | 12155 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12156 | if (s == NULL) |
12157 | return -1; | |
12158 | ||
12159 | names = (char *) (s + count); | |
12160 | p = relplt->relocation; | |
12161 | n = 0; | |
cb53bf42 | 12162 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12163 | { |
12164 | size_t len; | |
12165 | bfd_vma addr; | |
12166 | ||
12167 | addr = bed->plt_sym_val (i, plt, p); | |
12168 | if (addr == (bfd_vma) -1) | |
12169 | continue; | |
12170 | ||
12171 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12172 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12173 | we are defining a symbol, ensure one of them is set. */ | |
12174 | if ((s->flags & BSF_LOCAL) == 0) | |
12175 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12176 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12177 | s->section = plt; |
12178 | s->value = addr - plt->vma; | |
12179 | s->name = names; | |
8f39ba8e | 12180 | s->udata.p = NULL; |
4c45e5c9 JJ |
12181 | len = strlen ((*p->sym_ptr_ptr)->name); |
12182 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12183 | names += len; | |
041de40d AM |
12184 | if (p->addend != 0) |
12185 | { | |
1d770845 | 12186 | char buf[30], *a; |
d324f6d6 | 12187 | |
041de40d AM |
12188 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12189 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12190 | bfd_sprintf_vma (abfd, buf, p->addend); |
12191 | for (a = buf; *a == '0'; ++a) | |
12192 | ; | |
12193 | len = strlen (a); | |
12194 | memcpy (names, a, len); | |
12195 | names += len; | |
041de40d | 12196 | } |
4c45e5c9 JJ |
12197 | memcpy (names, "@plt", sizeof ("@plt")); |
12198 | names += sizeof ("@plt"); | |
8f39ba8e | 12199 | ++s, ++n; |
4c45e5c9 JJ |
12200 | } |
12201 | ||
12202 | return n; | |
12203 | } | |
3d7f7666 | 12204 | |
821e6ff6 AM |
12205 | /* It is only used by x86-64 so far. |
12206 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12207 | but current usage would allow all of _bfd_std_section to be zero. */ |
12208 | static const asymbol lcomm_sym | |
12209 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12210 | asection _bfd_elf_large_com_section |
7eacd66b | 12211 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12212 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12213 | |
cc364be6 AM |
12214 | bfd_boolean |
12215 | _bfd_elf_final_write_processing (bfd *abfd) | |
06f44071 AM |
12216 | { |
12217 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12218 | |
12219 | i_ehdrp = elf_elfheader (abfd); | |
12220 | ||
06f44071 AM |
12221 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12222 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12223 | |
df3a023b AM |
12224 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
12225 | SHF_GNU_MBIND sections or symbols of STT_GNU_IFUNC type or | |
12226 | STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12227 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12228 | { | |
12229 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12230 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12231 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12232 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12233 | { | |
12234 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
12235 | _bfd_error_handler (_("GNU_MBIND section is unsupported")); | |
12236 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) | |
12237 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is unsupported")); | |
12238 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) | |
12239 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is unsupported")); | |
9aea1e31 | 12240 | bfd_set_error (bfd_error_sorry); |
cc364be6 AM |
12241 | return FALSE; |
12242 | } | |
12243 | } | |
12244 | return TRUE; | |
d1036acb | 12245 | } |
fcb93ecf PB |
12246 | |
12247 | ||
12248 | /* Return TRUE for ELF symbol types that represent functions. | |
12249 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12250 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12251 | |
12252 | bfd_boolean | |
12253 | _bfd_elf_is_function_type (unsigned int type) | |
12254 | { | |
d8045f23 NC |
12255 | return (type == STT_FUNC |
12256 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12257 | } |
9f296da3 | 12258 | |
aef36ac1 AM |
12259 | /* If the ELF symbol SYM might be a function in SEC, return the |
12260 | function size and set *CODE_OFF to the function's entry point, | |
12261 | otherwise return zero. */ | |
9f296da3 | 12262 | |
aef36ac1 AM |
12263 | bfd_size_type |
12264 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12265 | bfd_vma *code_off) | |
9f296da3 | 12266 | { |
aef36ac1 AM |
12267 | bfd_size_type size; |
12268 | ||
ff9e0f5b | 12269 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12270 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12271 | || sym->section != sec) | |
12272 | return 0; | |
ff9e0f5b | 12273 | |
ff9e0f5b | 12274 | *code_off = sym->value; |
aef36ac1 AM |
12275 | size = 0; |
12276 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12277 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12278 | if (size == 0) | |
12279 | size = 1; | |
12280 | return size; | |
9f296da3 | 12281 | } |