Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
250d07de | 3 | Copyright (C) 1993-2021 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 *); |
0a1b45a2 AM |
53 | static bool assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
54 | static bool swap_out_syms (bfd *, struct elf_strtab_hash **, int, | |
55 | struct bfd_link_info *); | |
56 | static bool elf_parse_notes (bfd *abfd, char *buf, size_t size, | |
57 | file_ptr offset, size_t align); | |
50b2bdb7 | 58 | |
252b5132 RH |
59 | /* Swap version information in and out. The version information is |
60 | currently size independent. If that ever changes, this code will | |
61 | need to move into elfcode.h. */ | |
62 | ||
63 | /* Swap in a Verdef structure. */ | |
64 | ||
65 | void | |
217aa764 AM |
66 | _bfd_elf_swap_verdef_in (bfd *abfd, |
67 | const Elf_External_Verdef *src, | |
68 | Elf_Internal_Verdef *dst) | |
252b5132 | 69 | { |
dc810e39 AM |
70 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
71 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
72 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
73 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
74 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
75 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
76 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
77 | } |
78 | ||
79 | /* Swap out a Verdef structure. */ | |
80 | ||
81 | void | |
217aa764 AM |
82 | _bfd_elf_swap_verdef_out (bfd *abfd, |
83 | const Elf_Internal_Verdef *src, | |
84 | Elf_External_Verdef *dst) | |
252b5132 | 85 | { |
dc810e39 AM |
86 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
87 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
88 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
89 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
90 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
91 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
92 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
93 | } |
94 | ||
95 | /* Swap in a Verdaux structure. */ | |
96 | ||
97 | void | |
217aa764 AM |
98 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
99 | const Elf_External_Verdaux *src, | |
100 | Elf_Internal_Verdaux *dst) | |
252b5132 | 101 | { |
dc810e39 AM |
102 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
103 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
104 | } |
105 | ||
106 | /* Swap out a Verdaux structure. */ | |
107 | ||
108 | void | |
217aa764 AM |
109 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
110 | const Elf_Internal_Verdaux *src, | |
111 | Elf_External_Verdaux *dst) | |
252b5132 | 112 | { |
dc810e39 AM |
113 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
114 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
115 | } |
116 | ||
117 | /* Swap in a Verneed structure. */ | |
118 | ||
119 | void | |
217aa764 AM |
120 | _bfd_elf_swap_verneed_in (bfd *abfd, |
121 | const Elf_External_Verneed *src, | |
122 | Elf_Internal_Verneed *dst) | |
252b5132 | 123 | { |
dc810e39 AM |
124 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
125 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
126 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
127 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
128 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
129 | } |
130 | ||
131 | /* Swap out a Verneed structure. */ | |
132 | ||
133 | void | |
217aa764 AM |
134 | _bfd_elf_swap_verneed_out (bfd *abfd, |
135 | const Elf_Internal_Verneed *src, | |
136 | Elf_External_Verneed *dst) | |
252b5132 | 137 | { |
dc810e39 AM |
138 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
139 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
140 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
141 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
142 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
143 | } |
144 | ||
145 | /* Swap in a Vernaux structure. */ | |
146 | ||
147 | void | |
217aa764 AM |
148 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
149 | const Elf_External_Vernaux *src, | |
150 | Elf_Internal_Vernaux *dst) | |
252b5132 | 151 | { |
dc810e39 AM |
152 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
153 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
154 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
155 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
156 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
157 | } |
158 | ||
159 | /* Swap out a Vernaux structure. */ | |
160 | ||
161 | void | |
217aa764 AM |
162 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
163 | const Elf_Internal_Vernaux *src, | |
164 | Elf_External_Vernaux *dst) | |
252b5132 | 165 | { |
dc810e39 AM |
166 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
167 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
168 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
169 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
170 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
171 | } |
172 | ||
173 | /* Swap in a Versym structure. */ | |
174 | ||
175 | void | |
217aa764 AM |
176 | _bfd_elf_swap_versym_in (bfd *abfd, |
177 | const Elf_External_Versym *src, | |
178 | Elf_Internal_Versym *dst) | |
252b5132 | 179 | { |
dc810e39 | 180 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
181 | } |
182 | ||
183 | /* Swap out a Versym structure. */ | |
184 | ||
185 | void | |
217aa764 AM |
186 | _bfd_elf_swap_versym_out (bfd *abfd, |
187 | const Elf_Internal_Versym *src, | |
188 | Elf_External_Versym *dst) | |
252b5132 | 189 | { |
dc810e39 | 190 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
191 | } |
192 | ||
193 | /* Standard ELF hash function. Do not change this function; you will | |
194 | cause invalid hash tables to be generated. */ | |
3a99b017 | 195 | |
252b5132 | 196 | unsigned long |
217aa764 | 197 | bfd_elf_hash (const char *namearg) |
252b5132 | 198 | { |
3a99b017 | 199 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
200 | unsigned long h = 0; |
201 | unsigned long g; | |
202 | int ch; | |
203 | ||
204 | while ((ch = *name++) != '\0') | |
205 | { | |
206 | h = (h << 4) + ch; | |
207 | if ((g = (h & 0xf0000000)) != 0) | |
208 | { | |
209 | h ^= g >> 24; | |
210 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
211 | this case and on some machines one insn instead of two. */ | |
212 | h ^= g; | |
213 | } | |
214 | } | |
32dfa85d | 215 | return h & 0xffffffff; |
252b5132 RH |
216 | } |
217 | ||
fdc90cb4 JJ |
218 | /* DT_GNU_HASH hash function. Do not change this function; you will |
219 | cause invalid hash tables to be generated. */ | |
220 | ||
221 | unsigned long | |
222 | bfd_elf_gnu_hash (const char *namearg) | |
223 | { | |
224 | const unsigned char *name = (const unsigned char *) namearg; | |
225 | unsigned long h = 5381; | |
226 | unsigned char ch; | |
227 | ||
228 | while ((ch = *name++) != '\0') | |
229 | h = (h << 5) + h + ch; | |
230 | return h & 0xffffffff; | |
231 | } | |
232 | ||
0c8d6e5c AM |
233 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
234 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
0a1b45a2 | 235 | bool |
0c8d6e5c | 236 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 237 | size_t object_size, |
4dfe6ac6 | 238 | enum elf_target_id object_id) |
252b5132 | 239 | { |
0ffa91dd NC |
240 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
241 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
242 | if (abfd->tdata.any == NULL) | |
0a1b45a2 | 243 | return false; |
252b5132 | 244 | |
0ffa91dd | 245 | elf_object_id (abfd) = object_id; |
c0355132 AM |
246 | if (abfd->direction != read_direction) |
247 | { | |
248 | struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o); | |
249 | if (o == NULL) | |
0a1b45a2 | 250 | return false; |
c0355132 AM |
251 | elf_tdata (abfd)->o = o; |
252 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
253 | } | |
0a1b45a2 | 254 | return true; |
252b5132 RH |
255 | } |
256 | ||
0ffa91dd | 257 | |
0a1b45a2 | 258 | bool |
ae95ffa6 | 259 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 260 | { |
ae95ffa6 | 261 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 262 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 263 | bed->target_id); |
0ffa91dd NC |
264 | } |
265 | ||
0a1b45a2 | 266 | bool |
217aa764 | 267 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 268 | { |
c044fabd | 269 | /* I think this can be done just like an object file. */ |
228e534f | 270 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
0a1b45a2 | 271 | return false; |
228e534f AM |
272 | elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core)); |
273 | return elf_tdata (abfd)->core != NULL; | |
252b5132 RH |
274 | } |
275 | ||
6d5944fc | 276 | char * |
217aa764 | 277 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
278 | { |
279 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 280 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
281 | file_ptr offset; |
282 | bfd_size_type shstrtabsize; | |
252b5132 RH |
283 | |
284 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
285 | if (i_shdrp == 0 |
286 | || shindex >= elf_numsections (abfd) | |
287 | || i_shdrp[shindex] == 0) | |
f075ee0c | 288 | return NULL; |
252b5132 | 289 | |
f075ee0c | 290 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
291 | if (shstrtab == NULL) |
292 | { | |
c044fabd | 293 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
294 | offset = i_shdrp[shindex]->sh_offset; |
295 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
296 | |
297 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
298 | in case the string table is not terminated. */ | |
3471d59d | 299 | if (shstrtabsize + 1 <= 1 |
06614111 | 300 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
2bb3687b AM |
301 | || (shstrtab = _bfd_alloc_and_read (abfd, shstrtabsize + 1, |
302 | shstrtabsize)) == NULL) | |
303 | { | |
3471d59d CC |
304 | /* Once we've failed to read it, make sure we don't keep |
305 | trying. Otherwise, we'll keep allocating space for | |
306 | the string table over and over. */ | |
307 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
308 | } |
309 | else | |
310 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 311 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 312 | } |
f075ee0c | 313 | return (char *) shstrtab; |
252b5132 RH |
314 | } |
315 | ||
316 | char * | |
217aa764 AM |
317 | bfd_elf_string_from_elf_section (bfd *abfd, |
318 | unsigned int shindex, | |
319 | unsigned int strindex) | |
252b5132 RH |
320 | { |
321 | Elf_Internal_Shdr *hdr; | |
322 | ||
323 | if (strindex == 0) | |
324 | return ""; | |
325 | ||
74f2e02b AM |
326 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
327 | return NULL; | |
328 | ||
252b5132 RH |
329 | hdr = elf_elfsections (abfd)[shindex]; |
330 | ||
06614111 NC |
331 | if (hdr->contents == NULL) |
332 | { | |
333 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
334 | { | |
335 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 336 | /* xgettext:c-format */ |
871b3ab2 | 337 | _bfd_error_handler (_("%pB: attempt to load strings from" |
63a5468a | 338 | " a non-string section (number %d)"), |
06614111 NC |
339 | abfd, shindex); |
340 | return NULL; | |
341 | } | |
b1fa9dd6 | 342 | |
06614111 NC |
343 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
344 | return NULL; | |
345 | } | |
eed5def8 NC |
346 | else |
347 | { | |
348 | /* PR 24273: The string section's contents may have already | |
349 | been loaded elsewhere, eg because a corrupt file has the | |
350 | string section index in the ELF header pointing at a group | |
351 | section. So be paranoid, and test that the last byte of | |
352 | the section is zero. */ | |
353 | if (hdr->sh_size == 0 || hdr->contents[hdr->sh_size - 1] != 0) | |
354 | return NULL; | |
355 | } | |
252b5132 RH |
356 | |
357 | if (strindex >= hdr->sh_size) | |
358 | { | |
1b3a8575 | 359 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 360 | _bfd_error_handler |
695344c0 | 361 | /* xgettext:c-format */ |
2dcf00ce AM |
362 | (_("%pB: invalid string offset %u >= %" PRIu64 " for section `%s'"), |
363 | abfd, strindex, (uint64_t) hdr->sh_size, | |
1b3a8575 | 364 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 365 | ? ".shstrtab" |
1b3a8575 | 366 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 367 | return NULL; |
252b5132 RH |
368 | } |
369 | ||
370 | return ((char *) hdr->contents) + strindex; | |
371 | } | |
372 | ||
6cdc0ccc AM |
373 | /* Read and convert symbols to internal format. |
374 | SYMCOUNT specifies the number of symbols to read, starting from | |
375 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
376 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
377 | symbols, and symbol section index extensions, respectively. |
378 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
379 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
380 | |
381 | Elf_Internal_Sym * | |
217aa764 AM |
382 | bfd_elf_get_elf_syms (bfd *ibfd, |
383 | Elf_Internal_Shdr *symtab_hdr, | |
384 | size_t symcount, | |
385 | size_t symoffset, | |
386 | Elf_Internal_Sym *intsym_buf, | |
387 | void *extsym_buf, | |
388 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
389 | { |
390 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 391 | void *alloc_ext; |
df622259 | 392 | const bfd_byte *esym; |
6cdc0ccc AM |
393 | Elf_External_Sym_Shndx *alloc_extshndx; |
394 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 395 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
396 | Elf_Internal_Sym *isym; |
397 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 398 | const struct elf_backend_data *bed; |
6cdc0ccc | 399 | size_t extsym_size; |
1f4361a7 | 400 | size_t amt; |
6cdc0ccc AM |
401 | file_ptr pos; |
402 | ||
e44a2c9c AM |
403 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
404 | abort (); | |
405 | ||
6cdc0ccc AM |
406 | if (symcount == 0) |
407 | return intsym_buf; | |
408 | ||
409 | /* Normal syms might have section extension entries. */ | |
410 | shndx_hdr = NULL; | |
6a40cf0c NC |
411 | if (elf_symtab_shndx_list (ibfd) != NULL) |
412 | { | |
413 | elf_section_list * entry; | |
414 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
415 | ||
416 | /* Find an index section that is linked to this symtab section. */ | |
417 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
418 | { |
419 | /* PR 20063. */ | |
420 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
421 | continue; | |
422 | ||
423 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
424 | { | |
425 | shndx_hdr = & entry->hdr; | |
426 | break; | |
427 | }; | |
428 | } | |
6a40cf0c NC |
429 | |
430 | if (shndx_hdr == NULL) | |
431 | { | |
432 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
433 | /* Not really accurate, but this was how the old code used to work. */ | |
434 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
435 | /* Otherwise we do nothing. The assumption is that | |
436 | the index table will not be needed. */ | |
437 | } | |
438 | } | |
6cdc0ccc AM |
439 | |
440 | /* Read the symbols. */ | |
441 | alloc_ext = NULL; | |
442 | alloc_extshndx = NULL; | |
4dd07732 | 443 | alloc_intsym = NULL; |
6cdc0ccc AM |
444 | bed = get_elf_backend_data (ibfd); |
445 | extsym_size = bed->s->sizeof_sym; | |
1f4361a7 AM |
446 | if (_bfd_mul_overflow (symcount, extsym_size, &amt)) |
447 | { | |
448 | bfd_set_error (bfd_error_file_too_big); | |
449 | intsym_buf = NULL; | |
450 | goto out; | |
451 | } | |
6cdc0ccc AM |
452 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
453 | if (extsym_buf == NULL) | |
454 | { | |
1f4361a7 | 455 | alloc_ext = bfd_malloc (amt); |
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 | { | |
1f4361a7 AM |
470 | if (_bfd_mul_overflow (symcount, sizeof (Elf_External_Sym_Shndx), &amt)) |
471 | { | |
472 | bfd_set_error (bfd_error_file_too_big); | |
473 | intsym_buf = NULL; | |
474 | goto out; | |
475 | } | |
6cdc0ccc AM |
476 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
477 | if (extshndx_buf == NULL) | |
478 | { | |
1f4361a7 | 479 | alloc_extshndx = (Elf_External_Sym_Shndx *) bfd_malloc (amt); |
6cdc0ccc AM |
480 | extshndx_buf = alloc_extshndx; |
481 | } | |
482 | if (extshndx_buf == NULL | |
483 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
484 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
485 | { | |
486 | intsym_buf = NULL; | |
487 | goto out; | |
488 | } | |
489 | } | |
490 | ||
491 | if (intsym_buf == NULL) | |
492 | { | |
1f4361a7 AM |
493 | if (_bfd_mul_overflow (symcount, sizeof (Elf_Internal_Sym), &amt)) |
494 | { | |
495 | bfd_set_error (bfd_error_file_too_big); | |
496 | goto out; | |
497 | } | |
498 | alloc_intsym = (Elf_Internal_Sym *) bfd_malloc (amt); | |
4dd07732 | 499 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
500 | if (intsym_buf == NULL) |
501 | goto out; | |
502 | } | |
503 | ||
504 | /* Convert the symbols to internal form. */ | |
505 | isymend = intsym_buf + symcount; | |
a50b1753 | 506 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 507 | shndx = extshndx_buf; |
6cdc0ccc AM |
508 | isym < isymend; |
509 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
510 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
511 | { | |
512 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 513 | /* xgettext:c-format */ |
871b3ab2 | 514 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 515 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 516 | ibfd, (unsigned long) symoffset); |
c9594989 | 517 | free (alloc_intsym); |
8384fb8f AM |
518 | intsym_buf = NULL; |
519 | goto out; | |
520 | } | |
6cdc0ccc AM |
521 | |
522 | out: | |
c9594989 AM |
523 | free (alloc_ext); |
524 | free (alloc_extshndx); | |
6cdc0ccc AM |
525 | |
526 | return intsym_buf; | |
527 | } | |
528 | ||
5cab59f6 AM |
529 | /* Look up a symbol name. */ |
530 | const char * | |
be8dd2ca AM |
531 | bfd_elf_sym_name (bfd *abfd, |
532 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
533 | Elf_Internal_Sym *isym, |
534 | asection *sym_sec) | |
5cab59f6 | 535 | { |
26c61ae5 | 536 | const char *name; |
5cab59f6 | 537 | unsigned int iname = isym->st_name; |
be8dd2ca | 538 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 539 | |
138f35cc JJ |
540 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
541 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 542 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
543 | { |
544 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
545 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
546 | } | |
547 | ||
26c61ae5 L |
548 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
549 | if (name == NULL) | |
550 | name = "(null)"; | |
551 | else if (sym_sec && *name == '\0') | |
fd361982 | 552 | name = bfd_section_name (sym_sec); |
26c61ae5 L |
553 | |
554 | return name; | |
5cab59f6 AM |
555 | } |
556 | ||
dbb410c3 AM |
557 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
558 | sections. The first element is the flags, the rest are section | |
559 | pointers. */ | |
560 | ||
561 | typedef union elf_internal_group { | |
562 | Elf_Internal_Shdr *shdr; | |
563 | unsigned int flags; | |
564 | } Elf_Internal_Group; | |
565 | ||
b885599b AM |
566 | /* Return the name of the group signature symbol. Why isn't the |
567 | signature just a string? */ | |
568 | ||
569 | static const char * | |
217aa764 | 570 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 571 | { |
9dce4196 | 572 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
573 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
574 | Elf_External_Sym_Shndx eshndx; | |
575 | Elf_Internal_Sym isym; | |
b885599b | 576 | |
13792e9d L |
577 | /* First we need to ensure the symbol table is available. Make sure |
578 | that it is a symbol table section. */ | |
4fbb74a6 AM |
579 | if (ghdr->sh_link >= elf_numsections (abfd)) |
580 | return NULL; | |
13792e9d L |
581 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
582 | if (hdr->sh_type != SHT_SYMTAB | |
583 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
584 | return NULL; |
585 | ||
9dce4196 AM |
586 | /* Go read the symbol. */ |
587 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
588 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
589 | &isym, esym, &eshndx) == NULL) | |
b885599b | 590 | return NULL; |
9dce4196 | 591 | |
26c61ae5 | 592 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
593 | } |
594 | ||
dbb410c3 AM |
595 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
596 | ||
0a1b45a2 | 597 | static bool |
217aa764 | 598 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
599 | { |
600 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
601 | ||
602 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
603 | is set to -1 if there are no SHT_GROUP sections. */ | |
604 | if (num_group == 0) | |
605 | { | |
606 | unsigned int i, shnum; | |
607 | ||
608 | /* First count the number of groups. If we have a SHT_GROUP | |
609 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 610 | shnum = elf_numsections (abfd); |
dbb410c3 | 611 | num_group = 0; |
08a40648 | 612 | |
44534af3 | 613 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 614 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 615 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
616 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
617 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 618 | |
dbb410c3 AM |
619 | for (i = 0; i < shnum; i++) |
620 | { | |
621 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 622 | |
44534af3 | 623 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
624 | num_group += 1; |
625 | } | |
626 | ||
627 | if (num_group == 0) | |
20dbb49d L |
628 | { |
629 | num_group = (unsigned) -1; | |
630 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 631 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
632 | } |
633 | else | |
dbb410c3 AM |
634 | { |
635 | /* We keep a list of elf section headers for group sections, | |
636 | so we can find them quickly. */ | |
1f4361a7 | 637 | size_t amt; |
d0fb9a8d | 638 | |
20dbb49d | 639 | elf_tdata (abfd)->num_group = num_group; |
1f4361a7 AM |
640 | amt = num_group * sizeof (Elf_Internal_Shdr *); |
641 | elf_tdata (abfd)->group_sect_ptr | |
642 | = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
dbb410c3 | 643 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
0a1b45a2 | 644 | return false; |
dbb410c3 | 645 | num_group = 0; |
ce497010 | 646 | |
dbb410c3 AM |
647 | for (i = 0; i < shnum; i++) |
648 | { | |
649 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 650 | |
44534af3 | 651 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 652 | { |
973ffd63 | 653 | unsigned char *src; |
dbb410c3 AM |
654 | Elf_Internal_Group *dest; |
655 | ||
07d6d2b8 AM |
656 | /* Make sure the group section has a BFD section |
657 | attached to it. */ | |
658 | if (!bfd_section_from_shdr (abfd, i)) | |
0a1b45a2 | 659 | return false; |
07d6d2b8 | 660 | |
dbb410c3 AM |
661 | /* Add to list of sections. */ |
662 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
663 | num_group += 1; | |
664 | ||
665 | /* Read the raw contents. */ | |
1f4361a7 AM |
666 | BFD_ASSERT (sizeof (*dest) >= 4 && sizeof (*dest) % 4 == 0); |
667 | shdr->contents = NULL; | |
668 | if (_bfd_mul_overflow (shdr->sh_size, | |
669 | sizeof (*dest) / 4, &amt) | |
1f4361a7 | 670 | || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 |
2bb3687b AM |
671 | || !(shdr->contents |
672 | = _bfd_alloc_and_read (abfd, amt, shdr->sh_size))) | |
493a3386 NC |
673 | { |
674 | _bfd_error_handler | |
695344c0 | 675 | /* xgettext:c-format */ |
871b3ab2 | 676 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
677 | " header: %#" PRIx64 ""), |
678 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
679 | bfd_set_error (bfd_error_bad_value); |
680 | -- num_group; | |
493a3386 NC |
681 | continue; |
682 | } | |
708d7d0d | 683 | |
dbb410c3 AM |
684 | /* Translate raw contents, a flag word followed by an |
685 | array of elf section indices all in target byte order, | |
686 | to the flag word followed by an array of elf section | |
687 | pointers. */ | |
688 | src = shdr->contents + shdr->sh_size; | |
689 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 690 | |
dbb410c3 AM |
691 | while (1) |
692 | { | |
693 | unsigned int idx; | |
694 | ||
695 | src -= 4; | |
696 | --dest; | |
697 | idx = H_GET_32 (abfd, src); | |
698 | if (src == shdr->contents) | |
699 | { | |
327301a4 | 700 | dest->shdr = NULL; |
dbb410c3 | 701 | dest->flags = idx; |
b885599b AM |
702 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
703 | shdr->bfd_section->flags | |
704 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
705 | break; |
706 | } | |
4bba0fb1 | 707 | if (idx < shnum) |
bae363f1 L |
708 | { |
709 | dest->shdr = elf_elfsections (abfd)[idx]; | |
710 | /* PR binutils/23199: All sections in a | |
711 | section group should be marked with | |
712 | SHF_GROUP. But some tools generate | |
713 | broken objects without SHF_GROUP. Fix | |
714 | them up here. */ | |
715 | dest->shdr->sh_flags |= SHF_GROUP; | |
716 | } | |
4bba0fb1 AM |
717 | if (idx >= shnum |
718 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 719 | { |
4eca0228 | 720 | _bfd_error_handler |
4bba0fb1 AM |
721 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
722 | abfd, i); | |
723 | dest->shdr = NULL; | |
dbb410c3 | 724 | } |
dbb410c3 AM |
725 | } |
726 | } | |
727 | } | |
493a3386 NC |
728 | |
729 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
730 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
731 | { | |
732 | elf_tdata (abfd)->num_group = num_group; | |
733 | ||
734 | /* If all groups are invalid then fail. */ | |
735 | if (num_group == 0) | |
736 | { | |
737 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
738 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 739 | _bfd_error_handler |
871b3ab2 | 740 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
741 | bfd_set_error (bfd_error_bad_value); |
742 | } | |
743 | } | |
dbb410c3 AM |
744 | } |
745 | } | |
746 | ||
747 | if (num_group != (unsigned) -1) | |
748 | { | |
564e11c9 JW |
749 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
750 | unsigned int j; | |
dbb410c3 | 751 | |
564e11c9 | 752 | for (j = 0; j < num_group; j++) |
dbb410c3 | 753 | { |
564e11c9 JW |
754 | /* Begin search from previous found group. */ |
755 | unsigned i = (j + search_offset) % num_group; | |
756 | ||
dbb410c3 | 757 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 758 | Elf_Internal_Group *idx; |
0c54f692 | 759 | bfd_size_type n_elt; |
ce497010 NC |
760 | |
761 | if (shdr == NULL) | |
762 | continue; | |
763 | ||
764 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
765 | if (idx == NULL || shdr->sh_size < 4) |
766 | { | |
767 | /* See PR 21957 for a reproducer. */ | |
768 | /* xgettext:c-format */ | |
871b3ab2 | 769 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
770 | abfd, shdr->bfd_section); |
771 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
772 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 773 | return false; |
0c54f692 | 774 | } |
ce497010 | 775 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
776 | |
777 | /* Look through this group's sections to see if current | |
778 | section is a member. */ | |
779 | while (--n_elt != 0) | |
780 | if ((++idx)->shdr == hdr) | |
781 | { | |
e0e8c97f | 782 | asection *s = NULL; |
dbb410c3 AM |
783 | |
784 | /* We are a member of this group. Go looking through | |
785 | other members to see if any others are linked via | |
786 | next_in_group. */ | |
787 | idx = (Elf_Internal_Group *) shdr->contents; | |
788 | n_elt = shdr->sh_size / 4; | |
789 | while (--n_elt != 0) | |
4bba0fb1 AM |
790 | if ((++idx)->shdr != NULL |
791 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 792 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
793 | break; |
794 | if (n_elt != 0) | |
795 | { | |
dbb410c3 AM |
796 | /* Snarf the group name from other member, and |
797 | insert current section in circular list. */ | |
945906ff AM |
798 | elf_group_name (newsect) = elf_group_name (s); |
799 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
800 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
801 | } |
802 | else | |
803 | { | |
dbb410c3 AM |
804 | const char *gname; |
805 | ||
b885599b AM |
806 | gname = group_signature (abfd, shdr); |
807 | if (gname == NULL) | |
0a1b45a2 | 808 | return false; |
945906ff | 809 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
810 | |
811 | /* Start a circular list with one element. */ | |
945906ff | 812 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 813 | } |
b885599b | 814 | |
9dce4196 AM |
815 | /* If the group section has been created, point to the |
816 | new member. */ | |
dbb410c3 | 817 | if (shdr->bfd_section != NULL) |
945906ff | 818 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 819 | |
564e11c9 JW |
820 | elf_tdata (abfd)->group_search_offset = i; |
821 | j = num_group - 1; | |
dbb410c3 AM |
822 | break; |
823 | } | |
824 | } | |
825 | } | |
826 | ||
945906ff | 827 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 828 | { |
695344c0 | 829 | /* xgettext:c-format */ |
871b3ab2 | 830 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 831 | abfd, newsect); |
0a1b45a2 | 832 | return false; |
dbb410c3 | 833 | } |
0a1b45a2 | 834 | return true; |
dbb410c3 AM |
835 | } |
836 | ||
0a1b45a2 | 837 | bool |
dd863624 | 838 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
839 | { |
840 | unsigned int i; | |
841 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
0a1b45a2 | 842 | bool result = true; |
dd863624 L |
843 | asection *s; |
844 | ||
845 | /* Process SHF_LINK_ORDER. */ | |
846 | for (s = abfd->sections; s != NULL; s = s->next) | |
847 | { | |
848 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
849 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
850 | { | |
851 | unsigned int elfsec = this_hdr->sh_link; | |
b71702f1 NC |
852 | /* An sh_link value of 0 is now allowed. It indicates that linked |
853 | to section has already been discarded, but that the current | |
854 | section has been retained for some other reason. This linking | |
855 | section is still a candidate for later garbage collection | |
856 | however. */ | |
dd863624 L |
857 | if (elfsec == 0) |
858 | { | |
b71702f1 | 859 | elf_linked_to_section (s) = NULL; |
dd863624 L |
860 | } |
861 | else | |
862 | { | |
91d6fa6a | 863 | asection *linksec = NULL; |
25bbc984 | 864 | |
4fbb74a6 AM |
865 | if (elfsec < elf_numsections (abfd)) |
866 | { | |
867 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 868 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 869 | } |
25bbc984 L |
870 | |
871 | /* PR 1991, 2008: | |
872 | Some strip/objcopy may leave an incorrect value in | |
873 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 874 | if (linksec == NULL) |
25bbc984 | 875 | { |
4eca0228 | 876 | _bfd_error_handler |
695344c0 | 877 | /* xgettext:c-format */ |
871b3ab2 | 878 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 879 | s->owner, elfsec, s); |
0a1b45a2 | 880 | result = false; |
25bbc984 L |
881 | } |
882 | ||
91d6fa6a | 883 | elf_linked_to_section (s) = linksec; |
dd863624 L |
884 | } |
885 | } | |
53720c49 AM |
886 | else if (this_hdr->sh_type == SHT_GROUP |
887 | && elf_next_in_group (s) == NULL) | |
888 | { | |
4eca0228 | 889 | _bfd_error_handler |
695344c0 | 890 | /* xgettext:c-format */ |
871b3ab2 | 891 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 | 892 | abfd, elf_section_data (s)->this_idx); |
0a1b45a2 | 893 | result = false; |
53720c49 | 894 | } |
dd863624 | 895 | } |
3d7f7666 | 896 | |
dd863624 | 897 | /* Process section groups. */ |
3d7f7666 L |
898 | if (num_group == (unsigned) -1) |
899 | return result; | |
900 | ||
901 | for (i = 0; i < num_group; i++) | |
902 | { | |
903 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
904 | Elf_Internal_Group *idx; |
905 | unsigned int n_elt; | |
3d7f7666 | 906 | |
4b0e8a5f NC |
907 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
908 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
909 | { | |
4eca0228 | 910 | _bfd_error_handler |
695344c0 | 911 | /* xgettext:c-format */ |
871b3ab2 | 912 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f | 913 | abfd, i); |
0a1b45a2 | 914 | result = false; |
4b0e8a5f NC |
915 | continue; |
916 | } | |
917 | ||
918 | idx = (Elf_Internal_Group *) shdr->contents; | |
919 | n_elt = shdr->sh_size / 4; | |
1b786873 | 920 | |
3d7f7666 | 921 | while (--n_elt != 0) |
24d3e51b NC |
922 | { |
923 | ++ idx; | |
924 | ||
925 | if (idx->shdr == NULL) | |
926 | continue; | |
927 | else if (idx->shdr->bfd_section) | |
928 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
929 | else if (idx->shdr->sh_type != SHT_RELA |
930 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
931 | { |
932 | /* There are some unknown sections in the group. */ | |
933 | _bfd_error_handler | |
934 | /* xgettext:c-format */ | |
871b3ab2 | 935 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
936 | abfd, |
937 | idx->shdr->sh_type, | |
938 | bfd_elf_string_from_elf_section (abfd, | |
939 | (elf_elfheader (abfd) | |
940 | ->e_shstrndx), | |
941 | idx->shdr->sh_name), | |
942 | shdr->bfd_section); | |
0a1b45a2 | 943 | result = false; |
24d3e51b NC |
944 | } |
945 | } | |
3d7f7666 | 946 | } |
24d3e51b | 947 | |
3d7f7666 L |
948 | return result; |
949 | } | |
950 | ||
0a1b45a2 | 951 | bool |
72adc230 AM |
952 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) |
953 | { | |
954 | return elf_next_in_group (sec) != NULL; | |
955 | } | |
956 | ||
cb7f4b29 AM |
957 | const char * |
958 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
959 | { | |
960 | if (elf_sec_group (sec) != NULL) | |
961 | return elf_group_name (sec); | |
962 | return NULL; | |
963 | } | |
964 | ||
f6fe1ccd L |
965 | static char * |
966 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
967 | { | |
968 | unsigned int len = strlen (name); | |
969 | char *new_name = bfd_alloc (abfd, len + 2); | |
970 | if (new_name == NULL) | |
971 | return NULL; | |
972 | new_name[0] = '.'; | |
973 | new_name[1] = 'z'; | |
974 | memcpy (new_name + 2, name + 1, len); | |
975 | return new_name; | |
976 | } | |
977 | ||
978 | static char * | |
979 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
980 | { | |
981 | unsigned int len = strlen (name); | |
982 | char *new_name = bfd_alloc (abfd, len); | |
983 | if (new_name == NULL) | |
984 | return NULL; | |
985 | new_name[0] = '.'; | |
986 | memcpy (new_name + 1, name + 2, len - 1); | |
987 | return new_name; | |
988 | } | |
989 | ||
cc5277b1 ML |
990 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
991 | ||
992 | struct lto_section | |
993 | { | |
994 | int16_t major_version; | |
995 | int16_t minor_version; | |
996 | unsigned char slim_object; | |
997 | ||
998 | /* Flags is a private field that is not defined publicly. */ | |
999 | uint16_t flags; | |
1000 | }; | |
1001 | ||
252b5132 RH |
1002 | /* Make a BFD section from an ELF section. We store a pointer to the |
1003 | BFD section in the bfd_section field of the header. */ | |
1004 | ||
0a1b45a2 | 1005 | bool |
217aa764 AM |
1006 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1007 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1008 | const char *name, |
1009 | int shindex) | |
252b5132 RH |
1010 | { |
1011 | asection *newsect; | |
1012 | flagword flags; | |
9c5bfbb7 | 1013 | const struct elf_backend_data *bed; |
502794d4 | 1014 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
1015 | |
1016 | if (hdr->bfd_section != NULL) | |
0a1b45a2 | 1017 | return true; |
252b5132 RH |
1018 | |
1019 | newsect = bfd_make_section_anyway (abfd, name); | |
1020 | if (newsect == NULL) | |
0a1b45a2 | 1021 | return false; |
252b5132 | 1022 | |
1829f4b2 AM |
1023 | hdr->bfd_section = newsect; |
1024 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1025 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1026 | |
2f89ff8d L |
1027 | /* Always use the real type/flags. */ |
1028 | elf_section_type (newsect) = hdr->sh_type; | |
1029 | elf_section_flags (newsect) = hdr->sh_flags; | |
1030 | ||
252b5132 RH |
1031 | newsect->filepos = hdr->sh_offset; |
1032 | ||
252b5132 RH |
1033 | flags = SEC_NO_FLAGS; |
1034 | if (hdr->sh_type != SHT_NOBITS) | |
1035 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1036 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1037 | flags |= SEC_GROUP; |
252b5132 RH |
1038 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1039 | { | |
1040 | flags |= SEC_ALLOC; | |
1041 | if (hdr->sh_type != SHT_NOBITS) | |
1042 | flags |= SEC_LOAD; | |
1043 | } | |
1044 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1045 | flags |= SEC_READONLY; | |
1046 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1047 | flags |= SEC_CODE; | |
1048 | else if ((flags & SEC_LOAD) != 0) | |
1049 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1050 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1051 | { | |
1052 | flags |= SEC_MERGE; | |
1053 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1054 | } |
84865015 NC |
1055 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1056 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1057 | if (hdr->sh_flags & SHF_GROUP) |
1058 | if (!setup_group (abfd, hdr, newsect)) | |
0a1b45a2 | 1059 | return false; |
13ae64f3 JJ |
1060 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1061 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1062 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1063 | flags |= SEC_EXCLUDE; | |
252b5132 | 1064 | |
df3a023b AM |
1065 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1066 | { | |
1067 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1068 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1069 | byte. */ | |
df3a023b AM |
1070 | case ELFOSABI_GNU: |
1071 | case ELFOSABI_FREEBSD: | |
99fabbc9 JL |
1072 | if ((hdr->sh_flags & SHF_GNU_RETAIN) != 0) |
1073 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_retain; | |
1074 | /* Fall through */ | |
1075 | case ELFOSABI_NONE: | |
df3a023b AM |
1076 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) |
1077 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1078 | break; | |
1079 | } | |
1080 | ||
3d2b39cf | 1081 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1082 | { |
3d2b39cf L |
1083 | /* The debugging sections appear to be recognized only by name, |
1084 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1085 | if (name [0] == '.') |
1086 | { | |
3f3328b8 ML |
1087 | if (startswith (name, ".debug") |
1088 | || startswith (name, ".gnu.debuglto_.debug_") | |
1089 | || startswith (name, ".gnu.linkonce.wi.") | |
1090 | || startswith (name, ".zdebug")) | |
bb294208 | 1091 | flags |= SEC_DEBUGGING | SEC_ELF_OCTETS; |
3f3328b8 ML |
1092 | else if (startswith (name, GNU_BUILD_ATTRS_SECTION_NAME) |
1093 | || startswith (name, ".note.gnu")) | |
502794d4 CE |
1094 | { |
1095 | flags |= SEC_ELF_OCTETS; | |
1096 | opb = 1; | |
1097 | } | |
3f3328b8 ML |
1098 | else if (startswith (name, ".line") |
1099 | || startswith (name, ".stab") | |
bb294208 | 1100 | || strcmp (name, ".gdb_index") == 0) |
3d2b39cf L |
1101 | flags |= SEC_DEBUGGING; |
1102 | } | |
1103 | } | |
252b5132 | 1104 | |
502794d4 CE |
1105 | if (!bfd_set_section_vma (newsect, hdr->sh_addr / opb) |
1106 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1107 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign))) | |
0a1b45a2 | 1108 | return false; |
502794d4 | 1109 | |
252b5132 RH |
1110 | /* As a GNU extension, if the name begins with .gnu.linkonce, we |
1111 | only link a single copy of the section. This is used to support | |
1112 | g++. g++ will emit each template expansion in its own section. | |
1113 | The symbols will be defined as weak, so that multiple definitions | |
1114 | are permitted. The GNU linker extension is to actually discard | |
1115 | all but one of the sections. */ | |
08dedd66 | 1116 | if (startswith (name, ".gnu.linkonce") |
b885599b | 1117 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1118 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1119 | ||
8c803a2d | 1120 | if (!bfd_set_section_flags (newsect, flags)) |
0a1b45a2 | 1121 | return false; |
8c803a2d | 1122 | |
fa152c49 JW |
1123 | bed = get_elf_backend_data (abfd); |
1124 | if (bed->elf_backend_section_flags) | |
8c803a2d | 1125 | if (!bed->elf_backend_section_flags (hdr)) |
0a1b45a2 | 1126 | return false; |
fa152c49 | 1127 | |
718175fa JK |
1128 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1129 | separate debug info files which may have the segments offsets corrupted. | |
1130 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1131 | if (hdr->sh_type == SHT_NOTE) | |
1132 | { | |
baea7ef1 | 1133 | bfd_byte *contents; |
718175fa | 1134 | |
baea7ef1 | 1135 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
0a1b45a2 | 1136 | return false; |
718175fa | 1137 | |
276da9b3 L |
1138 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1139 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1140 | free (contents); |
1141 | } | |
1142 | ||
8c803a2d | 1143 | if ((newsect->flags & SEC_ALLOC) != 0) |
252b5132 RH |
1144 | { |
1145 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1146 | unsigned int i, nload; |
1147 | ||
1148 | /* Some ELF linkers produce binaries with all the program header | |
1149 | p_paddr fields zero. If we have such a binary with more than | |
1150 | one PT_LOAD header, then leave the section lma equal to vma | |
1151 | so that we don't create sections with overlapping lma. */ | |
1152 | phdr = elf_tdata (abfd)->phdr; | |
1153 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1154 | if (phdr->p_paddr != 0) | |
1155 | break; | |
1156 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1157 | ++nload; | |
1158 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
0a1b45a2 | 1159 | return true; |
252b5132 | 1160 | |
252b5132 RH |
1161 | phdr = elf_tdata (abfd)->phdr; |
1162 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1163 | { | |
86b2281f AM |
1164 | if (((phdr->p_type == PT_LOAD |
1165 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1166 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1167 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1168 | { |
8c803a2d | 1169 | if ((newsect->flags & SEC_LOAD) == 0) |
88967714 | 1170 | newsect->lma = (phdr->p_paddr |
502794d4 | 1171 | + hdr->sh_addr - phdr->p_vaddr) / opb; |
88967714 AM |
1172 | else |
1173 | /* We used to use the same adjustment for SEC_LOAD | |
1174 | sections, but that doesn't work if the segment | |
1175 | is packed with code from multiple VMAs. | |
1176 | Instead we calculate the section LMA based on | |
1177 | the segment LMA. It is assumed that the | |
1178 | segment will contain sections with contiguous | |
1179 | LMAs, even if the VMAs are not. */ | |
1180 | newsect->lma = (phdr->p_paddr | |
502794d4 | 1181 | + hdr->sh_offset - phdr->p_offset) / opb; |
88967714 AM |
1182 | |
1183 | /* With contiguous segments, we can't tell from file | |
1184 | offsets whether a section with zero size should | |
1185 | be placed at the end of one segment or the | |
1186 | beginning of the next. Decide based on vaddr. */ | |
1187 | if (hdr->sh_addr >= phdr->p_vaddr | |
1188 | && (hdr->sh_addr + hdr->sh_size | |
1189 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1190 | break; | |
252b5132 RH |
1191 | } |
1192 | } | |
1193 | } | |
1194 | ||
4a114e3e L |
1195 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1196 | .zdebug_*, after the section flags is set. */ | |
8c803a2d | 1197 | if ((newsect->flags & SEC_DEBUGGING) |
4a114e3e L |
1198 | && ((name[1] == 'd' && name[6] == '_') |
1199 | || (name[1] == 'z' && name[7] == '_'))) | |
1200 | { | |
1201 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1202 | int compression_header_size; |
dab394de | 1203 | bfd_size_type uncompressed_size; |
4207142d | 1204 | unsigned int uncompressed_align_power; |
0a1b45a2 | 1205 | bool compressed |
151411f8 | 1206 | = bfd_is_section_compressed_with_header (abfd, newsect, |
dab394de | 1207 | &compression_header_size, |
4207142d MW |
1208 | &uncompressed_size, |
1209 | &uncompressed_align_power); | |
151411f8 | 1210 | if (compressed) |
4a114e3e L |
1211 | { |
1212 | /* Compressed section. Check if we should decompress. */ | |
1213 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1214 | action = decompress; | |
1215 | } | |
151411f8 L |
1216 | |
1217 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1218 | section. Check if we should compress. */ | |
1219 | if (action == nothing) | |
4a114e3e | 1220 | { |
151411f8 L |
1221 | if (newsect->size != 0 |
1222 | && (abfd->flags & BFD_COMPRESS) | |
1223 | && compression_header_size >= 0 | |
dab394de | 1224 | && uncompressed_size > 0 |
151411f8 L |
1225 | && (!compressed |
1226 | || ((compression_header_size > 0) | |
1227 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1228 | action = compress; |
151411f8 | 1229 | else |
0a1b45a2 | 1230 | return true; |
4a114e3e L |
1231 | } |
1232 | ||
151411f8 | 1233 | if (action == compress) |
4a114e3e | 1234 | { |
4a114e3e L |
1235 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1236 | { | |
4eca0228 | 1237 | _bfd_error_handler |
695344c0 | 1238 | /* xgettext:c-format */ |
871b3ab2 | 1239 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e | 1240 | abfd, name); |
0a1b45a2 | 1241 | return false; |
4a114e3e | 1242 | } |
151411f8 L |
1243 | } |
1244 | else | |
1245 | { | |
4a114e3e L |
1246 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1247 | { | |
4eca0228 | 1248 | _bfd_error_handler |
695344c0 | 1249 | /* xgettext:c-format */ |
871b3ab2 | 1250 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e | 1251 | abfd, name); |
0a1b45a2 | 1252 | return false; |
4a114e3e | 1253 | } |
151411f8 L |
1254 | } |
1255 | ||
f6fe1ccd | 1256 | if (abfd->is_linker_input) |
151411f8 | 1257 | { |
f6fe1ccd L |
1258 | if (name[1] == 'z' |
1259 | && (action == decompress | |
1260 | || (action == compress | |
1261 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1262 | { |
f6fe1ccd L |
1263 | /* Convert section name from .zdebug_* to .debug_* so |
1264 | that linker will consider this section as a debug | |
1265 | section. */ | |
1266 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 | 1267 | if (new_name == NULL) |
0a1b45a2 | 1268 | return false; |
fd361982 | 1269 | bfd_rename_section (newsect, new_name); |
151411f8 | 1270 | } |
4a114e3e | 1271 | } |
f6fe1ccd L |
1272 | else |
1273 | /* For objdump, don't rename the section. For objcopy, delay | |
1274 | section rename to elf_fake_sections. */ | |
1275 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1276 | } |
1277 | ||
cc5277b1 ML |
1278 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1279 | section. */ | |
3f3328b8 | 1280 | if (startswith (name, ".gnu.lto_.lto.")) |
cc5277b1 ML |
1281 | { |
1282 | struct lto_section lsection; | |
1283 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1284 | sizeof (struct lto_section))) | |
1285 | abfd->lto_slim_object = lsection.slim_object; | |
1286 | } | |
1287 | ||
0a1b45a2 | 1288 | return true; |
252b5132 RH |
1289 | } |
1290 | ||
84865015 NC |
1291 | const char *const bfd_elf_section_type_names[] = |
1292 | { | |
252b5132 RH |
1293 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1294 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1295 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1296 | }; | |
1297 | ||
1049f94e | 1298 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1299 | output, and the reloc is against an external symbol, and nothing |
1300 | has given us any additional addend, the resulting reloc will also | |
1301 | be against the same symbol. In such a case, we don't want to | |
1302 | change anything about the way the reloc is handled, since it will | |
1303 | all be done at final link time. Rather than put special case code | |
1304 | into bfd_perform_relocation, all the reloc types use this howto | |
2dfa8341 | 1305 | function, or should call this function for relocatable output. */ |
252b5132 | 1306 | |
252b5132 | 1307 | bfd_reloc_status_type |
217aa764 AM |
1308 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1309 | arelent *reloc_entry, | |
1310 | asymbol *symbol, | |
1311 | void *data ATTRIBUTE_UNUSED, | |
1312 | asection *input_section, | |
1313 | bfd *output_bfd, | |
1314 | char **error_message ATTRIBUTE_UNUSED) | |
1315 | { | |
1316 | if (output_bfd != NULL | |
252b5132 RH |
1317 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1318 | && (! reloc_entry->howto->partial_inplace | |
1319 | || reloc_entry->addend == 0)) | |
1320 | { | |
1321 | reloc_entry->address += input_section->output_offset; | |
1322 | return bfd_reloc_ok; | |
1323 | } | |
1324 | ||
2dfa8341 AM |
1325 | /* In some cases the relocation should be treated as output section |
1326 | relative, as when linking ELF DWARF into PE COFF. Many ELF | |
1327 | targets lack section relative relocations and instead use | |
1328 | ordinary absolute relocations for references between DWARF | |
1329 | sections. That is arguably a bug in those targets but it happens | |
1330 | to work for the usual case of linking to non-loaded ELF debug | |
1331 | sections with VMAs forced to zero. PE COFF on the other hand | |
1332 | doesn't allow a section VMA of zero. */ | |
1333 | if (output_bfd == NULL | |
1334 | && !reloc_entry->howto->pc_relative | |
1335 | && (symbol->section->flags & SEC_DEBUGGING) != 0 | |
1336 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
1337 | reloc_entry->addend -= symbol->section->output_section->vma; | |
1338 | ||
252b5132 RH |
1339 | return bfd_reloc_continue; |
1340 | } | |
1341 | \f | |
84865015 NC |
1342 | /* Returns TRUE if section A matches section B. |
1343 | Names, addresses and links may be different, but everything else | |
1344 | should be the same. */ | |
1345 | ||
0a1b45a2 | 1346 | static bool |
5522f910 NC |
1347 | section_match (const Elf_Internal_Shdr * a, |
1348 | const Elf_Internal_Shdr * b) | |
84865015 | 1349 | { |
ac85e67c AM |
1350 | if (a->sh_type != b->sh_type |
1351 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1352 | || a->sh_addralign != b->sh_addralign | |
1353 | || a->sh_entsize != b->sh_entsize) | |
0a1b45a2 | 1354 | return false; |
ac85e67c AM |
1355 | if (a->sh_type == SHT_SYMTAB |
1356 | || a->sh_type == SHT_STRTAB) | |
0a1b45a2 | 1357 | return true; |
ac85e67c | 1358 | return a->sh_size == b->sh_size; |
84865015 NC |
1359 | } |
1360 | ||
1361 | /* Find a section in OBFD that has the same characteristics | |
1362 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1363 | none can be found. Check's section HINT first, as this is likely | |
1364 | to be the correct section. */ | |
1365 | ||
1366 | static unsigned int | |
5cc4ca83 ST |
1367 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1368 | const unsigned int hint) | |
84865015 NC |
1369 | { |
1370 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1371 | unsigned int i; | |
1372 | ||
a55c9876 NC |
1373 | BFD_ASSERT (iheader != NULL); |
1374 | ||
1375 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1376 | if (hint < elf_numsections (obfd) |
1377 | && oheaders[hint] != NULL | |
a55c9876 | 1378 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1379 | return hint; |
1380 | ||
1381 | for (i = 1; i < elf_numsections (obfd); i++) | |
1382 | { | |
1383 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1384 | ||
a55c9876 NC |
1385 | if (oheader == NULL) |
1386 | continue; | |
84865015 NC |
1387 | if (section_match (oheader, iheader)) |
1388 | /* FIXME: Do we care if there is a potential for | |
1389 | multiple matches ? */ | |
1390 | return i; | |
1391 | } | |
1392 | ||
1393 | return SHN_UNDEF; | |
1394 | } | |
1395 | ||
5522f910 NC |
1396 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1397 | Processor specific section, based upon a matching input section. | |
1398 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1399 | |
0a1b45a2 | 1400 | static bool |
5522f910 NC |
1401 | copy_special_section_fields (const bfd *ibfd, |
1402 | bfd *obfd, | |
1403 | const Elf_Internal_Shdr *iheader, | |
1404 | Elf_Internal_Shdr *oheader, | |
1405 | const unsigned int secnum) | |
1406 | { | |
1407 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1408 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
0a1b45a2 | 1409 | bool changed = false; |
5522f910 NC |
1410 | unsigned int sh_link; |
1411 | ||
1412 | if (oheader->sh_type == SHT_NOBITS) | |
1413 | { | |
1414 | /* This is a feature for objcopy --only-keep-debug: | |
1415 | When a section's type is changed to NOBITS, we preserve | |
1416 | the sh_link and sh_info fields so that they can be | |
1417 | matched up with the original. | |
1418 | ||
1419 | Note: Strictly speaking these assignments are wrong. | |
1420 | The sh_link and sh_info fields should point to the | |
1421 | relevent sections in the output BFD, which may not be in | |
1422 | the same location as they were in the input BFD. But | |
1423 | the whole point of this action is to preserve the | |
1424 | original values of the sh_link and sh_info fields, so | |
1425 | that they can be matched up with the section headers in | |
1426 | the original file. So strictly speaking we may be | |
1427 | creating an invalid ELF file, but it is only for a file | |
1428 | that just contains debug info and only for sections | |
1429 | without any contents. */ | |
1430 | if (oheader->sh_link == 0) | |
1431 | oheader->sh_link = iheader->sh_link; | |
1432 | if (oheader->sh_info == 0) | |
1433 | oheader->sh_info = iheader->sh_info; | |
0a1b45a2 | 1434 | return true; |
5522f910 NC |
1435 | } |
1436 | ||
1437 | /* Allow the target a chance to decide how these fields should be set. */ | |
a859124d AM |
1438 | if (bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1439 | iheader, oheader)) | |
0a1b45a2 | 1440 | return true; |
5522f910 NC |
1441 | |
1442 | /* We have an iheader which might match oheader, and which has non-zero | |
1443 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1444 | the section in the output bfd which corresponds to the linked section | |
1445 | in the input bfd. */ | |
1446 | if (iheader->sh_link != SHN_UNDEF) | |
1447 | { | |
4f3ca05b NC |
1448 | /* See PR 20931 for a reproducer. */ |
1449 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1450 | { | |
76cfced5 | 1451 | _bfd_error_handler |
4f3ca05b | 1452 | /* xgettext:c-format */ |
9793eb77 | 1453 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b | 1454 | ibfd, iheader->sh_link, secnum); |
0a1b45a2 | 1455 | return false; |
4f3ca05b NC |
1456 | } |
1457 | ||
5522f910 NC |
1458 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1459 | if (sh_link != SHN_UNDEF) | |
1460 | { | |
1461 | oheader->sh_link = sh_link; | |
0a1b45a2 | 1462 | changed = true; |
5522f910 NC |
1463 | } |
1464 | else | |
1465 | /* FIXME: Should we install iheader->sh_link | |
1466 | if we could not find a match ? */ | |
76cfced5 | 1467 | _bfd_error_handler |
695344c0 | 1468 | /* xgettext:c-format */ |
9793eb77 | 1469 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1470 | } |
1471 | ||
1472 | if (iheader->sh_info) | |
1473 | { | |
1474 | /* The sh_info field can hold arbitrary information, but if the | |
1475 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1476 | section index. */ | |
1477 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1478 | { | |
1479 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1480 | iheader->sh_info); | |
1481 | if (sh_link != SHN_UNDEF) | |
1482 | oheader->sh_flags |= SHF_INFO_LINK; | |
1483 | } | |
1484 | else | |
1485 | /* No idea what it means - just copy it. */ | |
1486 | sh_link = iheader->sh_info; | |
1487 | ||
1488 | if (sh_link != SHN_UNDEF) | |
1489 | { | |
1490 | oheader->sh_info = sh_link; | |
0a1b45a2 | 1491 | changed = true; |
5522f910 NC |
1492 | } |
1493 | else | |
76cfced5 | 1494 | _bfd_error_handler |
695344c0 | 1495 | /* xgettext:c-format */ |
9793eb77 | 1496 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1497 | } |
1498 | ||
1499 | return changed; | |
1500 | } | |
07d6d2b8 | 1501 | |
0ac4564e L |
1502 | /* Copy the program header and other data from one object module to |
1503 | another. */ | |
252b5132 | 1504 | |
0a1b45a2 | 1505 | bool |
217aa764 | 1506 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1507 | { |
5522f910 NC |
1508 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1509 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1510 | const struct elf_backend_data *bed; | |
84865015 NC |
1511 | unsigned int i; |
1512 | ||
2d502050 | 1513 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1514 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
0a1b45a2 | 1515 | return true; |
2d502050 | 1516 | |
57b828ef L |
1517 | if (!elf_flags_init (obfd)) |
1518 | { | |
1519 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
0a1b45a2 | 1520 | elf_flags_init (obfd) = true; |
57b828ef | 1521 | } |
2d502050 | 1522 | |
0ac4564e | 1523 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1524 | |
1525 | /* Also copy the EI_OSABI field. */ | |
1526 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1527 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1528 | |
5522f910 NC |
1529 | /* If set, copy the EI_ABIVERSION field. */ |
1530 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1531 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1532 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1533 | |
104d59d1 JM |
1534 | /* Copy object attributes. */ |
1535 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1536 | |
84865015 | 1537 | if (iheaders == NULL || oheaders == NULL) |
0a1b45a2 | 1538 | return true; |
63b9bbb7 | 1539 | |
5522f910 NC |
1540 | bed = get_elf_backend_data (obfd); |
1541 | ||
1542 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1543 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1544 | { |
84865015 NC |
1545 | unsigned int j; |
1546 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1547 | |
5522f910 NC |
1548 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1549 | because of a special case need for generating separate debug info | |
1550 | files. See below for more details. */ | |
84865015 NC |
1551 | if (oheader == NULL |
1552 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1553 | && oheader->sh_type < SHT_LOOS)) |
1554 | continue; | |
1555 | ||
1556 | /* Ignore empty sections, and sections whose | |
1557 | fields have already been initialised. */ | |
1558 | if (oheader->sh_size == 0 | |
84865015 NC |
1559 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1560 | continue; | |
63b9bbb7 | 1561 | |
84865015 | 1562 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1563 | First we try for a direct mapping between the input and output sections. */ |
1564 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1565 | { | |
1566 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1567 | ||
1568 | if (iheader == NULL) | |
1569 | continue; | |
1570 | ||
1571 | if (oheader->bfd_section != NULL | |
1572 | && iheader->bfd_section != NULL | |
1573 | && iheader->bfd_section->output_section != NULL | |
1574 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1575 | { | |
1576 | /* We have found a connection from the input section to the | |
1577 | output section. Attempt to copy the header fields. If | |
1578 | this fails then do not try any further sections - there | |
1579 | should only be a one-to-one mapping between input and output. */ | |
1580 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1581 | j = elf_numsections (ibfd); | |
1582 | break; | |
1583 | } | |
1584 | } | |
1585 | ||
1586 | if (j < elf_numsections (ibfd)) | |
1587 | continue; | |
1588 | ||
1589 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1590 | Unfortunately we cannot compare names as the output string table |
1591 | is empty, so instead we check size, address and type. */ | |
1592 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1593 | { | |
5522f910 | 1594 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1595 | |
5522f910 NC |
1596 | if (iheader == NULL) |
1597 | continue; | |
1598 | ||
1599 | /* Try matching fields in the input section's header. | |
1600 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1601 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1602 | input type. */ | |
1603 | if ((oheader->sh_type == SHT_NOBITS | |
1604 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1605 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1606 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1607 | && iheader->sh_addralign == oheader->sh_addralign |
1608 | && iheader->sh_entsize == oheader->sh_entsize | |
1609 | && iheader->sh_size == oheader->sh_size | |
1610 | && iheader->sh_addr == oheader->sh_addr | |
1611 | && (iheader->sh_info != oheader->sh_info | |
1612 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1613 | { |
5522f910 NC |
1614 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1615 | break; | |
63b9bbb7 NC |
1616 | } |
1617 | } | |
5522f910 NC |
1618 | |
1619 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1620 | { | |
1621 | /* Final attempt. Call the backend copy function | |
1622 | with a NULL input section. */ | |
a859124d AM |
1623 | (void) bed->elf_backend_copy_special_section_fields (ibfd, obfd, |
1624 | NULL, oheader); | |
5522f910 | 1625 | } |
63b9bbb7 NC |
1626 | } |
1627 | ||
0a1b45a2 | 1628 | return true; |
2d502050 L |
1629 | } |
1630 | ||
cedc298e L |
1631 | static const char * |
1632 | get_segment_type (unsigned int p_type) | |
1633 | { | |
1634 | const char *pt; | |
1635 | switch (p_type) | |
1636 | { | |
1637 | case PT_NULL: pt = "NULL"; break; | |
1638 | case PT_LOAD: pt = "LOAD"; break; | |
1639 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1640 | case PT_INTERP: pt = "INTERP"; break; | |
1641 | case PT_NOTE: pt = "NOTE"; break; | |
1642 | case PT_SHLIB: pt = "SHLIB"; break; | |
1643 | case PT_PHDR: pt = "PHDR"; break; | |
1644 | case PT_TLS: pt = "TLS"; break; | |
1645 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1646 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1647 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1648 | default: pt = NULL; break; | |
1649 | } | |
1650 | return pt; | |
1651 | } | |
1652 | ||
f0b79d91 L |
1653 | /* Print out the program headers. */ |
1654 | ||
0a1b45a2 | 1655 | bool |
217aa764 | 1656 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1657 | { |
a50b1753 | 1658 | FILE *f = (FILE *) farg; |
252b5132 RH |
1659 | Elf_Internal_Phdr *p; |
1660 | asection *s; | |
1661 | bfd_byte *dynbuf = NULL; | |
1662 | ||
1663 | p = elf_tdata (abfd)->phdr; | |
1664 | if (p != NULL) | |
1665 | { | |
1666 | unsigned int i, c; | |
1667 | ||
1668 | fprintf (f, _("\nProgram Header:\n")); | |
1669 | c = elf_elfheader (abfd)->e_phnum; | |
1670 | for (i = 0; i < c; i++, p++) | |
1671 | { | |
cedc298e | 1672 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1673 | char buf[20]; |
1674 | ||
cedc298e | 1675 | if (pt == NULL) |
252b5132 | 1676 | { |
cedc298e L |
1677 | sprintf (buf, "0x%lx", p->p_type); |
1678 | pt = buf; | |
252b5132 | 1679 | } |
dc810e39 | 1680 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1681 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1682 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1683 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1684 | fprintf (f, " paddr 0x"); |
60b89a18 | 1685 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1686 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1687 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1688 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1689 | fprintf (f, " memsz 0x"); |
60b89a18 | 1690 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1691 | fprintf (f, " flags %c%c%c", |
1692 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1693 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1694 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1695 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1696 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1697 | fprintf (f, "\n"); |
1698 | } | |
1699 | } | |
1700 | ||
1701 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1702 | if (s != NULL) | |
1703 | { | |
cb33740c | 1704 | unsigned int elfsec; |
dc810e39 | 1705 | unsigned long shlink; |
252b5132 RH |
1706 | bfd_byte *extdyn, *extdynend; |
1707 | size_t extdynsize; | |
217aa764 | 1708 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1709 | |
1710 | fprintf (f, _("\nDynamic Section:\n")); | |
1711 | ||
eea6121a | 1712 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1713 | goto error_return; |
1714 | ||
1715 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1716 | if (elfsec == SHN_BAD) |
252b5132 | 1717 | goto error_return; |
dc810e39 | 1718 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1719 | |
1720 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1721 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1722 | ||
1723 | extdyn = dynbuf; | |
06614111 NC |
1724 | /* PR 17512: file: 6f427532. */ |
1725 | if (s->size < extdynsize) | |
1726 | goto error_return; | |
eea6121a | 1727 | extdynend = extdyn + s->size; |
1036838a | 1728 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1729 | Fix range check. */ |
1036838a | 1730 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1731 | { |
1732 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1733 | const char *name = ""; |
252b5132 | 1734 | char ab[20]; |
0a1b45a2 | 1735 | bool stringp; |
ad9563d6 | 1736 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1737 | |
217aa764 | 1738 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1739 | |
1740 | if (dyn.d_tag == DT_NULL) | |
1741 | break; | |
1742 | ||
0a1b45a2 | 1743 | stringp = false; |
252b5132 RH |
1744 | switch (dyn.d_tag) |
1745 | { | |
1746 | default: | |
ad9563d6 CM |
1747 | if (bed->elf_backend_get_target_dtag) |
1748 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1749 | ||
1750 | if (!strcmp (name, "")) | |
1751 | { | |
cd9af601 | 1752 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1753 | name = ab; |
1754 | } | |
252b5132 RH |
1755 | break; |
1756 | ||
0a1b45a2 | 1757 | case DT_NEEDED: name = "NEEDED"; stringp = true; break; |
252b5132 RH |
1758 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1759 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1760 | case DT_HASH: name = "HASH"; break; | |
1761 | case DT_STRTAB: name = "STRTAB"; break; | |
1762 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1763 | case DT_RELA: name = "RELA"; break; | |
1764 | case DT_RELASZ: name = "RELASZ"; break; | |
1765 | case DT_RELAENT: name = "RELAENT"; break; | |
1766 | case DT_STRSZ: name = "STRSZ"; break; | |
1767 | case DT_SYMENT: name = "SYMENT"; break; | |
1768 | case DT_INIT: name = "INIT"; break; | |
1769 | case DT_FINI: name = "FINI"; break; | |
0a1b45a2 AM |
1770 | case DT_SONAME: name = "SONAME"; stringp = true; break; |
1771 | case DT_RPATH: name = "RPATH"; stringp = true; break; | |
252b5132 RH |
1772 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1773 | case DT_REL: name = "REL"; break; | |
1774 | case DT_RELSZ: name = "RELSZ"; break; | |
1775 | case DT_RELENT: name = "RELENT"; break; | |
1776 | case DT_PLTREL: name = "PLTREL"; break; | |
1777 | case DT_DEBUG: name = "DEBUG"; break; | |
1778 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1779 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1780 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1781 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1782 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1783 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1784 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
0a1b45a2 | 1785 | case DT_RUNPATH: name = "RUNPATH"; stringp = true; break; |
94558834 L |
1786 | case DT_FLAGS: name = "FLAGS"; break; |
1787 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1788 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1789 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1790 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1791 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1792 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1793 | case DT_FEATURE: name = "FEATURE"; break; | |
1794 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1795 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1796 | case DT_SYMINENT: name = "SYMINENT"; break; | |
0a1b45a2 AM |
1797 | case DT_CONFIG: name = "CONFIG"; stringp = true; break; |
1798 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = true; break; | |
1799 | case DT_AUDIT: name = "AUDIT"; stringp = true; break; | |
94558834 L |
1800 | case DT_PLTPAD: name = "PLTPAD"; break; |
1801 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1802 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1803 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1804 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1805 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1806 | case DT_VERSYM: name = "VERSYM"; break; |
1807 | case DT_VERDEF: name = "VERDEF"; break; | |
1808 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1809 | case DT_VERNEED: name = "VERNEED"; break; | |
1810 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
0a1b45a2 | 1811 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = true; break; |
94558834 | 1812 | case DT_USED: name = "USED"; break; |
0a1b45a2 | 1813 | case DT_FILTER: name = "FILTER"; stringp = true; break; |
fdc90cb4 | 1814 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1815 | } |
1816 | ||
ad9563d6 | 1817 | fprintf (f, " %-20s ", name); |
252b5132 | 1818 | if (! stringp) |
a1f3c56e AN |
1819 | { |
1820 | fprintf (f, "0x"); | |
1821 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1822 | } | |
252b5132 RH |
1823 | else |
1824 | { | |
1825 | const char *string; | |
dc810e39 | 1826 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1827 | |
dc810e39 | 1828 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1829 | if (string == NULL) |
1830 | goto error_return; | |
1831 | fprintf (f, "%s", string); | |
1832 | } | |
1833 | fprintf (f, "\n"); | |
1834 | } | |
1835 | ||
1836 | free (dynbuf); | |
1837 | dynbuf = NULL; | |
1838 | } | |
1839 | ||
1840 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1841 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1842 | { | |
0a1b45a2 AM |
1843 | if (! _bfd_elf_slurp_version_tables (abfd, false)) |
1844 | return false; | |
252b5132 RH |
1845 | } |
1846 | ||
1847 | if (elf_dynverdef (abfd) != 0) | |
1848 | { | |
1849 | Elf_Internal_Verdef *t; | |
1850 | ||
1851 | fprintf (f, _("\nVersion definitions:\n")); | |
1852 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1853 | { | |
1854 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1855 | t->vd_flags, t->vd_hash, |
1856 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1857 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1858 | { |
1859 | Elf_Internal_Verdaux *a; | |
1860 | ||
1861 | fprintf (f, "\t"); | |
1862 | for (a = t->vd_auxptr->vda_nextptr; | |
1863 | a != NULL; | |
1864 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1865 | fprintf (f, "%s ", |
1866 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1867 | fprintf (f, "\n"); |
1868 | } | |
1869 | } | |
1870 | } | |
1871 | ||
1872 | if (elf_dynverref (abfd) != 0) | |
1873 | { | |
1874 | Elf_Internal_Verneed *t; | |
1875 | ||
1876 | fprintf (f, _("\nVersion References:\n")); | |
1877 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1878 | { | |
1879 | Elf_Internal_Vernaux *a; | |
1880 | ||
d0fb9a8d JJ |
1881 | fprintf (f, _(" required from %s:\n"), |
1882 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1883 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1884 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1885 | a->vna_flags, a->vna_other, |
1886 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1887 | } |
1888 | } | |
1889 | ||
0a1b45a2 | 1890 | return true; |
252b5132 RH |
1891 | |
1892 | error_return: | |
c9594989 | 1893 | free (dynbuf); |
0a1b45a2 | 1894 | return false; |
252b5132 RH |
1895 | } |
1896 | ||
7e6e972f L |
1897 | /* Get version name. If BASE_P is TRUE, return "Base" for VER_FLG_BASE |
1898 | and return symbol version for symbol version itself. */ | |
bb4d2ac2 L |
1899 | |
1900 | const char * | |
1081065c | 1901 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
0a1b45a2 AM |
1902 | bool base_p, |
1903 | bool *hidden) | |
bb4d2ac2 L |
1904 | { |
1905 | const char *version_string = NULL; | |
1906 | if (elf_dynversym (abfd) != 0 | |
1907 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1908 | { | |
1909 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1910 | ||
1911 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1912 | vernum &= VERSYM_VERSION; | |
1913 | ||
1914 | if (vernum == 0) | |
1915 | version_string = ""; | |
1f6f5dba L |
1916 | else if (vernum == 1 |
1917 | && (vernum > elf_tdata (abfd)->cverdefs | |
1918 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1919 | == VER_FLG_BASE))) | |
7e6e972f | 1920 | version_string = base_p ? "Base" : ""; |
bb4d2ac2 | 1921 | else if (vernum <= elf_tdata (abfd)->cverdefs) |
7e6e972f L |
1922 | { |
1923 | const char *nodename | |
1924 | = elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
8d55d10a AM |
1925 | version_string = ""; |
1926 | if (base_p | |
1927 | || nodename == NULL | |
1928 | || symbol->name == NULL | |
1929 | || strcmp (symbol->name, nodename) != 0) | |
1930 | version_string = nodename; | |
7e6e972f | 1931 | } |
bb4d2ac2 L |
1932 | else |
1933 | { | |
1934 | Elf_Internal_Verneed *t; | |
1935 | ||
7a815dd5 | 1936 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1937 | for (t = elf_tdata (abfd)->verref; |
1938 | t != NULL; | |
1939 | t = t->vn_nextref) | |
1940 | { | |
1941 | Elf_Internal_Vernaux *a; | |
1942 | ||
1943 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1944 | { | |
1945 | if (a->vna_other == vernum) | |
1946 | { | |
1947 | version_string = a->vna_nodename; | |
1948 | break; | |
1949 | } | |
1950 | } | |
1951 | } | |
1952 | } | |
1953 | } | |
1954 | return version_string; | |
1955 | } | |
1956 | ||
252b5132 RH |
1957 | /* Display ELF-specific fields of a symbol. */ |
1958 | ||
1959 | void | |
217aa764 AM |
1960 | bfd_elf_print_symbol (bfd *abfd, |
1961 | void *filep, | |
1962 | asymbol *symbol, | |
1963 | bfd_print_symbol_type how) | |
252b5132 | 1964 | { |
a50b1753 | 1965 | FILE *file = (FILE *) filep; |
252b5132 RH |
1966 | switch (how) |
1967 | { | |
1968 | case bfd_print_symbol_name: | |
1969 | fprintf (file, "%s", symbol->name); | |
1970 | break; | |
1971 | case bfd_print_symbol_more: | |
1972 | fprintf (file, "elf "); | |
60b89a18 | 1973 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1974 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1975 | break; |
1976 | case bfd_print_symbol_all: | |
1977 | { | |
4e8a9624 AM |
1978 | const char *section_name; |
1979 | const char *name = NULL; | |
9c5bfbb7 | 1980 | const struct elf_backend_data *bed; |
7a13edea | 1981 | unsigned char st_other; |
dbb410c3 | 1982 | bfd_vma val; |
bb4d2ac2 | 1983 | const char *version_string; |
0a1b45a2 | 1984 | bool hidden; |
c044fabd | 1985 | |
252b5132 | 1986 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1987 | |
1988 | bed = get_elf_backend_data (abfd); | |
1989 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1990 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1991 | |
1992 | if (name == NULL) | |
1993 | { | |
7ee38065 | 1994 | name = symbol->name; |
217aa764 | 1995 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1996 | } |
1997 | ||
252b5132 RH |
1998 | fprintf (file, " %s\t", section_name); |
1999 | /* Print the "other" value for a symbol. For common symbols, | |
2000 | we've already printed the size; now print the alignment. | |
2001 | For other symbols, we have no specified alignment, and | |
2002 | we've printed the address; now print the size. */ | |
dcf6c779 | 2003 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
2004 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
2005 | else | |
2006 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
2007 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
2008 | |
2009 | /* If we have version information, print it. */ | |
60bb06bc L |
2010 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2011 | symbol, | |
0a1b45a2 | 2012 | true, |
60bb06bc | 2013 | &hidden); |
bb4d2ac2 | 2014 | if (version_string) |
252b5132 | 2015 | { |
bb4d2ac2 | 2016 | if (!hidden) |
252b5132 RH |
2017 | fprintf (file, " %-11s", version_string); |
2018 | else | |
2019 | { | |
2020 | int i; | |
2021 | ||
2022 | fprintf (file, " (%s)", version_string); | |
2023 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2024 | putc (' ', file); | |
2025 | } | |
2026 | } | |
2027 | ||
2028 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2029 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2030 | |
7a13edea NC |
2031 | switch (st_other) |
2032 | { | |
2033 | case 0: break; | |
2034 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2035 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2036 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2037 | default: | |
2038 | /* Some other non-defined flags are also present, so print | |
2039 | everything hex. */ | |
2040 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2041 | } | |
252b5132 | 2042 | |
587ff49e | 2043 | fprintf (file, " %s", name); |
252b5132 RH |
2044 | } |
2045 | break; | |
2046 | } | |
2047 | } | |
252b5132 RH |
2048 | \f |
2049 | /* ELF .o/exec file reading */ | |
2050 | ||
c044fabd | 2051 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2052 | |
0a1b45a2 | 2053 | bool |
217aa764 | 2054 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2055 | { |
4fbb74a6 AM |
2056 | Elf_Internal_Shdr *hdr; |
2057 | Elf_Internal_Ehdr *ehdr; | |
2058 | const struct elf_backend_data *bed; | |
90937f86 | 2059 | const char *name; |
0a1b45a2 | 2060 | bool ret = true; |
252b5132 | 2061 | |
4fbb74a6 | 2062 | if (shindex >= elf_numsections (abfd)) |
0a1b45a2 | 2063 | return false; |
4fbb74a6 | 2064 | |
a86c6c19 AM |
2065 | /* PR17512: A corrupt ELF binary might contain a loop of sections via |
2066 | sh_link or sh_info. Detect this here, by refusing to load a | |
2067 | section that we are already in the process of loading. */ | |
2068 | if (elf_tdata (abfd)->being_created[shindex]) | |
bf67003b | 2069 | { |
a86c6c19 AM |
2070 | _bfd_error_handler |
2071 | (_("%pB: warning: loop in section dependencies detected"), abfd); | |
0a1b45a2 | 2072 | return false; |
bf67003b | 2073 | } |
0a1b45a2 | 2074 | elf_tdata (abfd)->being_created[shindex] = true; |
bf67003b | 2075 | |
4fbb74a6 AM |
2076 | hdr = elf_elfsections (abfd)[shindex]; |
2077 | ehdr = elf_elfheader (abfd); | |
2078 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2079 | hdr->sh_name); |
933d961a | 2080 | if (name == NULL) |
bf67003b | 2081 | goto fail; |
252b5132 | 2082 | |
4fbb74a6 | 2083 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2084 | switch (hdr->sh_type) |
2085 | { | |
2086 | case SHT_NULL: | |
2087 | /* Inactive section. Throw it away. */ | |
bf67003b | 2088 | goto success; |
252b5132 | 2089 | |
bf67003b NC |
2090 | case SHT_PROGBITS: /* Normal section with contents. */ |
2091 | case SHT_NOBITS: /* .bss section. */ | |
2092 | case SHT_HASH: /* .hash section. */ | |
2093 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2094 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2095 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2096 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2097 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2098 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2099 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2100 | goto success; | |
252b5132 | 2101 | |
797fc050 | 2102 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2103 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2104 | goto fail; |
2105 | ||
cfcac11d NC |
2106 | if (hdr->sh_link > elf_numsections (abfd)) |
2107 | { | |
caa83f8b | 2108 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2109 | field set to SHN_BEFORE or SHN_AFTER. */ |
2110 | switch (bfd_get_arch (abfd)) | |
2111 | { | |
caa83f8b | 2112 | case bfd_arch_i386: |
cfcac11d NC |
2113 | case bfd_arch_sparc: |
2114 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2115 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2116 | break; | |
2117 | /* Otherwise fall through. */ | |
2118 | default: | |
bf67003b | 2119 | goto fail; |
cfcac11d NC |
2120 | } |
2121 | } | |
2122 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2123 | goto fail; |
cfcac11d | 2124 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2125 | { |
2126 | Elf_Internal_Shdr *dynsymhdr; | |
2127 | ||
2128 | /* The shared libraries distributed with hpux11 have a bogus | |
2129 | sh_link field for the ".dynamic" section. Find the | |
2130 | string table for the ".dynsym" section instead. */ | |
2131 | if (elf_dynsymtab (abfd) != 0) | |
2132 | { | |
2133 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2134 | hdr->sh_link = dynsymhdr->sh_link; | |
2135 | } | |
2136 | else | |
2137 | { | |
2138 | unsigned int i, num_sec; | |
2139 | ||
2140 | num_sec = elf_numsections (abfd); | |
2141 | for (i = 1; i < num_sec; i++) | |
2142 | { | |
2143 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2144 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2145 | { | |
2146 | hdr->sh_link = dynsymhdr->sh_link; | |
2147 | break; | |
2148 | } | |
2149 | } | |
2150 | } | |
2151 | } | |
bf67003b | 2152 | goto success; |
797fc050 | 2153 | |
bf67003b | 2154 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2155 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2156 | goto success; |
252b5132 | 2157 | |
a50b2160 | 2158 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2159 | goto fail; |
2160 | ||
3337c1e5 | 2161 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2162 | { |
2163 | if (hdr->sh_size != 0) | |
bf67003b | 2164 | goto fail; |
eee3b786 AM |
2165 | /* Some assemblers erroneously set sh_info to one with a |
2166 | zero sh_size. ld sees this as a global symbol count | |
2167 | of (unsigned) -1. Fix it here. */ | |
2168 | hdr->sh_info = 0; | |
bf67003b | 2169 | goto success; |
eee3b786 | 2170 | } |
bf67003b | 2171 | |
16ad13ec NC |
2172 | /* PR 18854: A binary might contain more than one symbol table. |
2173 | Unusual, but possible. Warn, but continue. */ | |
2174 | if (elf_onesymtab (abfd) != 0) | |
2175 | { | |
4eca0228 | 2176 | _bfd_error_handler |
695344c0 | 2177 | /* xgettext:c-format */ |
871b3ab2 | 2178 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2179 | " - ignoring the table in section %u"), |
16ad13ec NC |
2180 | abfd, shindex); |
2181 | goto success; | |
2182 | } | |
252b5132 | 2183 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2184 | elf_symtab_hdr (abfd) = *hdr; |
2185 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2186 | abfd->flags |= HAS_SYMS; |
2187 | ||
2188 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2189 | SHF_ALLOC is set, and this is a shared object, then we also |
2190 | treat this section as a BFD section. We can not base the | |
2191 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2192 | set in a relocatable object file, which would confuse the | |
2193 | linker. */ | |
252b5132 RH |
2194 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2195 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2196 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2197 | shindex)) | |
bf67003b | 2198 | goto fail; |
252b5132 | 2199 | |
1b3a8575 AM |
2200 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2201 | can't read symbols without that section loaded as well. It | |
2202 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2203 | { |
2204 | elf_section_list * entry; | |
2205 | unsigned int i, num_sec; | |
1b3a8575 | 2206 | |
6a40cf0c NC |
2207 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2208 | if (entry->hdr.sh_link == shindex) | |
2209 | goto success; | |
2210 | ||
2211 | num_sec = elf_numsections (abfd); | |
2212 | for (i = shindex + 1; i < num_sec; i++) | |
2213 | { | |
2214 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2215 | ||
2216 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2217 | && hdr2->sh_link == shindex) | |
2218 | break; | |
2219 | } | |
2220 | ||
2221 | if (i == num_sec) | |
2222 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2223 | { |
2224 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2225 | |
1b3a8575 AM |
2226 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2227 | && hdr2->sh_link == shindex) | |
2228 | break; | |
2229 | } | |
6a40cf0c NC |
2230 | |
2231 | if (i != shindex) | |
2232 | ret = bfd_section_from_shdr (abfd, i); | |
2233 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2234 | goto success; | |
2235 | } | |
252b5132 | 2236 | |
bf67003b | 2237 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2238 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2239 | goto success; |
252b5132 | 2240 | |
a50b2160 | 2241 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2242 | goto fail; |
2243 | ||
eee3b786 AM |
2244 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2245 | { | |
2246 | if (hdr->sh_size != 0) | |
bf67003b NC |
2247 | goto fail; |
2248 | ||
eee3b786 AM |
2249 | /* Some linkers erroneously set sh_info to one with a |
2250 | zero sh_size. ld sees this as a global symbol count | |
2251 | of (unsigned) -1. Fix it here. */ | |
2252 | hdr->sh_info = 0; | |
bf67003b | 2253 | goto success; |
eee3b786 | 2254 | } |
bf67003b | 2255 | |
16ad13ec NC |
2256 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2257 | Unusual, but possible. Warn, but continue. */ | |
2258 | if (elf_dynsymtab (abfd) != 0) | |
2259 | { | |
4eca0228 | 2260 | _bfd_error_handler |
695344c0 | 2261 | /* xgettext:c-format */ |
871b3ab2 | 2262 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2263 | " - ignoring the table in section %u"), |
16ad13ec NC |
2264 | abfd, shindex); |
2265 | goto success; | |
2266 | } | |
252b5132 RH |
2267 | elf_dynsymtab (abfd) = shindex; |
2268 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2269 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2270 | abfd->flags |= HAS_SYMS; | |
2271 | ||
2272 | /* Besides being a symbol table, we also treat this as a regular | |
2273 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2274 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2275 | goto success; | |
252b5132 | 2276 | |
bf67003b | 2277 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2278 | { |
2279 | elf_section_list * entry; | |
9ad5cbcf | 2280 | |
6a40cf0c NC |
2281 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2282 | if (entry->ndx == shindex) | |
2283 | goto success; | |
07d6d2b8 | 2284 | |
7a6e0d89 | 2285 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2286 | if (entry == NULL) |
2287 | goto fail; | |
2288 | entry->ndx = shindex; | |
2289 | entry->hdr = * hdr; | |
2290 | entry->next = elf_symtab_shndx_list (abfd); | |
2291 | elf_symtab_shndx_list (abfd) = entry; | |
2292 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2293 | goto success; | |
2294 | } | |
9ad5cbcf | 2295 | |
bf67003b | 2296 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2297 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2298 | goto success; |
2299 | ||
252b5132 RH |
2300 | if (ehdr->e_shstrndx == shindex) |
2301 | { | |
2302 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2303 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2304 | goto success; |
252b5132 | 2305 | } |
bf67003b | 2306 | |
1b3a8575 AM |
2307 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2308 | { | |
2309 | symtab_strtab: | |
2310 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2311 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2312 | goto success; |
1b3a8575 | 2313 | } |
bf67003b | 2314 | |
1b3a8575 AM |
2315 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2316 | { | |
2317 | dynsymtab_strtab: | |
2318 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2319 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2320 | elf_elfsections (abfd)[shindex] = hdr; | |
2321 | /* We also treat this as a regular section, so that objcopy | |
2322 | can handle it. */ | |
bf67003b NC |
2323 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2324 | shindex); | |
2325 | goto success; | |
1b3a8575 | 2326 | } |
252b5132 | 2327 | |
1b3a8575 AM |
2328 | /* If the string table isn't one of the above, then treat it as a |
2329 | regular section. We need to scan all the headers to be sure, | |
2330 | just in case this strtab section appeared before the above. */ | |
2331 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2332 | { | |
2333 | unsigned int i, num_sec; | |
252b5132 | 2334 | |
1b3a8575 AM |
2335 | num_sec = elf_numsections (abfd); |
2336 | for (i = 1; i < num_sec; i++) | |
2337 | { | |
2338 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2339 | if (hdr2->sh_link == shindex) | |
2340 | { | |
933d961a JJ |
2341 | /* Prevent endless recursion on broken objects. */ |
2342 | if (i == shindex) | |
bf67003b | 2343 | goto fail; |
1b3a8575 | 2344 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2345 | goto fail; |
1b3a8575 AM |
2346 | if (elf_onesymtab (abfd) == i) |
2347 | goto symtab_strtab; | |
2348 | if (elf_dynsymtab (abfd) == i) | |
2349 | goto dynsymtab_strtab; | |
2350 | } | |
2351 | } | |
2352 | } | |
bf67003b NC |
2353 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2354 | goto success; | |
252b5132 RH |
2355 | |
2356 | case SHT_REL: | |
2357 | case SHT_RELA: | |
2358 | /* *These* do a lot of work -- but build no sections! */ | |
2359 | { | |
2360 | asection *target_sect; | |
d4730f92 | 2361 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2362 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2363 | struct bfd_elf_section_data *esdt; |
252b5132 | 2364 | |
aa2ca951 JJ |
2365 | if (hdr->sh_entsize |
2366 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2367 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2368 | goto fail; |
a50b2160 | 2369 | |
03ae5f59 | 2370 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2371 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2372 | { |
4eca0228 | 2373 | _bfd_error_handler |
695344c0 | 2374 | /* xgettext:c-format */ |
871b3ab2 | 2375 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2376 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2377 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2378 | shindex); | |
2379 | goto success; | |
03ae5f59 ILT |
2380 | } |
2381 | ||
252b5132 RH |
2382 | /* For some incomprehensible reason Oracle distributes |
2383 | libraries for Solaris in which some of the objects have | |
2384 | bogus sh_link fields. It would be nice if we could just | |
2385 | reject them, but, unfortunately, some people need to use | |
2386 | them. We scan through the section headers; if we find only | |
2387 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2388 | to it. I hope this doesn't break anything. |
2389 | ||
2390 | Don't do it on executable nor shared library. */ | |
2391 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2392 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2393 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2394 | { | |
9ad5cbcf | 2395 | unsigned int scan; |
252b5132 RH |
2396 | int found; |
2397 | ||
2398 | found = 0; | |
9ad5cbcf | 2399 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2400 | { |
2401 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2402 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2403 | { | |
2404 | if (found != 0) | |
2405 | { | |
2406 | found = 0; | |
2407 | break; | |
2408 | } | |
2409 | found = scan; | |
2410 | } | |
2411 | } | |
2412 | if (found != 0) | |
2413 | hdr->sh_link = found; | |
2414 | } | |
2415 | ||
2416 | /* Get the symbol table. */ | |
1b3a8575 AM |
2417 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2418 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2419 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2420 | goto fail; |
252b5132 | 2421 | |
a4bcd733 AM |
2422 | /* If this is an alloc section in an executable or shared |
2423 | library, or the reloc section does not use the main symbol | |
2424 | table we don't treat it as a reloc section. BFD can't | |
2425 | adequately represent such a section, so at least for now, | |
2426 | we don't try. We just present it as a normal section. We | |
2427 | also can't use it as a reloc section if it points to the | |
2428 | null section, an invalid section, another reloc section, or | |
2429 | its sh_link points to the null section. */ | |
2430 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2431 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2432 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2433 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2434 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2435 | || hdr->sh_info >= num_sec |
2436 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2437 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2438 | { |
2439 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2440 | shindex); | |
2441 | goto success; | |
2442 | } | |
252b5132 RH |
2443 | |
2444 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2445 | goto fail; |
2446 | ||
252b5132 RH |
2447 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2448 | if (target_sect == NULL) | |
bf67003b | 2449 | goto fail; |
252b5132 | 2450 | |
d4730f92 BS |
2451 | esdt = elf_section_data (target_sect); |
2452 | if (hdr->sh_type == SHT_RELA) | |
2453 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2454 | else |
d4730f92 BS |
2455 | p_hdr = &esdt->rel.hdr; |
2456 | ||
a7ba3896 NC |
2457 | /* PR 17512: file: 0b4f81b7. |
2458 | Also see PR 24456, for a file which deliberately has two reloc | |
2459 | sections. */ | |
06614111 | 2460 | if (*p_hdr != NULL) |
a7ba3896 | 2461 | { |
a859124d | 2462 | if (!bed->init_secondary_reloc_section (abfd, hdr, name, shindex)) |
a8e14f4c NC |
2463 | { |
2464 | _bfd_error_handler | |
2465 | /* xgettext:c-format */ | |
a859124d AM |
2466 | (_("%pB: warning: secondary relocation section '%s' " |
2467 | "for section %pA found - ignoring"), | |
a8e14f4c NC |
2468 | abfd, name, target_sect); |
2469 | } | |
956ea65c MM |
2470 | else |
2471 | esdt->has_secondary_relocs = true; | |
a7ba3896 NC |
2472 | goto success; |
2473 | } | |
a8e14f4c | 2474 | |
ef53be89 | 2475 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2476 | if (hdr2 == NULL) |
bf67003b | 2477 | goto fail; |
252b5132 | 2478 | *hdr2 = *hdr; |
d4730f92 | 2479 | *p_hdr = hdr2; |
252b5132 | 2480 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2481 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2482 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2483 | target_sect->flags |= SEC_RELOC; |
2484 | target_sect->relocation = NULL; | |
2485 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2486 | /* In the section to which the relocations apply, mark whether |
2487 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2488 | if (hdr->sh_size != 0) |
d4730f92 BS |
2489 | { |
2490 | if (hdr->sh_type == SHT_RELA) | |
2491 | target_sect->use_rela_p = 1; | |
2492 | } | |
252b5132 | 2493 | abfd->flags |= HAS_RELOC; |
bf67003b | 2494 | goto success; |
252b5132 | 2495 | } |
252b5132 RH |
2496 | |
2497 | case SHT_GNU_verdef: | |
2498 | elf_dynverdef (abfd) = shindex; | |
2499 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2500 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2501 | goto success; | |
252b5132 RH |
2502 | |
2503 | case SHT_GNU_versym: | |
a50b2160 | 2504 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2505 | goto fail; |
2506 | ||
252b5132 RH |
2507 | elf_dynversym (abfd) = shindex; |
2508 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2509 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2510 | goto success; | |
252b5132 RH |
2511 | |
2512 | case SHT_GNU_verneed: | |
2513 | elf_dynverref (abfd) = shindex; | |
2514 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2515 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2516 | goto success; | |
252b5132 RH |
2517 | |
2518 | case SHT_SHLIB: | |
bf67003b | 2519 | goto success; |
252b5132 | 2520 | |
dbb410c3 | 2521 | case SHT_GROUP: |
44534af3 | 2522 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2523 | goto fail; |
2524 | ||
6dc132d9 | 2525 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2526 | goto fail; |
2527 | ||
bf67003b | 2528 | goto success; |
dbb410c3 | 2529 | |
252b5132 | 2530 | default: |
104d59d1 JM |
2531 | /* Possibly an attributes section. */ |
2532 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2533 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2534 | { | |
2535 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2536 | goto fail; |
104d59d1 | 2537 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2538 | goto success; |
104d59d1 JM |
2539 | } |
2540 | ||
252b5132 | 2541 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2542 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2543 | goto success; |
3eb70a79 L |
2544 | |
2545 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2546 | { | |
2547 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2548 | /* FIXME: How to properly handle allocated section reserved | |
2549 | for applications? */ | |
4eca0228 | 2550 | _bfd_error_handler |
695344c0 | 2551 | /* xgettext:c-format */ |
871b3ab2 | 2552 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2553 | abfd, hdr->sh_type, name); |
3eb70a79 | 2554 | else |
bf67003b NC |
2555 | { |
2556 | /* Allow sections reserved for applications. */ | |
2557 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2558 | shindex); | |
2559 | goto success; | |
2560 | } | |
3eb70a79 L |
2561 | } |
2562 | else if (hdr->sh_type >= SHT_LOPROC | |
2563 | && hdr->sh_type <= SHT_HIPROC) | |
2564 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2565 | _bfd_error_handler |
695344c0 | 2566 | /* xgettext:c-format */ |
871b3ab2 | 2567 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2568 | abfd, hdr->sh_type, name); |
3eb70a79 | 2569 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2570 | { |
2571 | /* Unrecognised OS-specific sections. */ | |
2572 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2573 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2574 | required to correctly process the section and the file should |
ff15b240 | 2575 | be rejected with an error message. */ |
4eca0228 | 2576 | _bfd_error_handler |
695344c0 | 2577 | /* xgettext:c-format */ |
871b3ab2 | 2578 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2579 | abfd, hdr->sh_type, name); |
ff15b240 | 2580 | else |
bf67003b NC |
2581 | { |
2582 | /* Otherwise it should be processed. */ | |
2583 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2584 | goto success; | |
2585 | } | |
ff15b240 | 2586 | } |
3eb70a79 L |
2587 | else |
2588 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2589 | _bfd_error_handler |
695344c0 | 2590 | /* xgettext:c-format */ |
871b3ab2 | 2591 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2592 | abfd, hdr->sh_type, name); |
3eb70a79 | 2593 | |
bf67003b | 2594 | goto fail; |
252b5132 RH |
2595 | } |
2596 | ||
bf67003b | 2597 | fail: |
0a1b45a2 | 2598 | ret = false; |
bf67003b | 2599 | success: |
0a1b45a2 | 2600 | elf_tdata (abfd)->being_created[shindex] = false; |
bf67003b | 2601 | return ret; |
252b5132 RH |
2602 | } |
2603 | ||
87d72d41 | 2604 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2605 | |
87d72d41 AM |
2606 | Elf_Internal_Sym * |
2607 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2608 | bfd *abfd, | |
2609 | unsigned long r_symndx) | |
ec338859 | 2610 | { |
ec338859 AM |
2611 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2612 | ||
a5d1b3b5 AM |
2613 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2614 | { | |
2615 | Elf_Internal_Shdr *symtab_hdr; | |
2616 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2617 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2618 | |
a5d1b3b5 AM |
2619 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2620 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2621 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2622 | return NULL; |
9ad5cbcf | 2623 | |
a5d1b3b5 AM |
2624 | if (cache->abfd != abfd) |
2625 | { | |
2626 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2627 | cache->abfd = abfd; | |
2628 | } | |
2629 | cache->indx[ent] = r_symndx; | |
ec338859 | 2630 | } |
a5d1b3b5 | 2631 | |
87d72d41 | 2632 | return &cache->sym[ent]; |
ec338859 AM |
2633 | } |
2634 | ||
252b5132 RH |
2635 | /* Given an ELF section number, retrieve the corresponding BFD |
2636 | section. */ | |
2637 | ||
2638 | asection * | |
91d6fa6a | 2639 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2640 | { |
91d6fa6a | 2641 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2642 | return NULL; |
91d6fa6a | 2643 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2644 | } |
2645 | ||
b35d266b | 2646 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2647 | { |
0112cd26 | 2648 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2649 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2650 | }; |
2651 | ||
b35d266b | 2652 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2653 | { |
0112cd26 | 2654 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2655 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2656 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2657 | }; |
2658 | ||
b35d266b | 2659 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2660 | { |
07d6d2b8 AM |
2661 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2662 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2663 | /* There are more DWARF sections than these, but they needn't be added here |
2664 | unless you have to cope with broken compilers that don't emit section | |
2665 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2666 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2667 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2668 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2669 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2670 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2671 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2672 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2673 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2674 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2675 | }; |
2676 | ||
b35d266b | 2677 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2678 | { |
07d6d2b8 | 2679 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2680 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2681 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2682 | }; |
2683 | ||
b35d266b | 2684 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2685 | { |
0112cd26 | 2686 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2c6f3e56 JL |
2687 | { STRING_COMMA_LEN (".gnu.linkonce.n"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2688 | { STRING_COMMA_LEN (".gnu.linkonce.p"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
07d6d2b8 AM |
2689 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2690 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2691 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2692 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2693 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2694 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2695 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2696 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2697 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2698 | }; |
2699 | ||
b35d266b | 2700 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2701 | { |
07d6d2b8 AM |
2702 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2703 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2704 | }; |
2705 | ||
b35d266b | 2706 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2707 | { |
07d6d2b8 | 2708 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2709 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2710 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2711 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2712 | }; |
2713 | ||
b35d266b | 2714 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2715 | { |
0112cd26 | 2716 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2717 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2718 | }; |
2719 | ||
b35d266b | 2720 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2721 | { |
2c6f3e56 | 2722 | { STRING_COMMA_LEN (".noinit"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
0112cd26 | 2723 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2724 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2725 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2726 | }; |
2727 | ||
b35d266b | 2728 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2729 | { |
f5e98b7d | 2730 | { STRING_COMMA_LEN (".persistent.bss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2c6f3e56 | 2731 | { STRING_COMMA_LEN (".persistent"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
6f9dbcd4 | 2732 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2733 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2734 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2735 | }; |
2736 | ||
b35d266b | 2737 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2738 | { |
0112cd26 NC |
2739 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2740 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2741 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2742 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2743 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2744 | }; |
2745 | ||
b35d266b | 2746 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2747 | { |
0112cd26 NC |
2748 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2749 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2750 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2751 | /* See struct bfd_elf_special_section declaration for the semantics of |
2752 | this special case where .prefix_length != strlen (.prefix). */ | |
2753 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2754 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2755 | }; |
2756 | ||
b35d266b | 2757 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2758 | { |
07d6d2b8 AM |
2759 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2760 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2761 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2762 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2763 | }; |
2764 | ||
1b315056 CS |
2765 | static const struct bfd_elf_special_section special_sections_z[] = |
2766 | { | |
07d6d2b8 AM |
2767 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2768 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2769 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2770 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2771 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2772 | }; |
2773 | ||
e4c93b56 | 2774 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2775 | { |
7f4d3958 | 2776 | special_sections_b, /* 'b' */ |
98ece1b3 | 2777 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2778 | special_sections_d, /* 'd' */ |
2779 | NULL, /* 'e' */ | |
2780 | special_sections_f, /* 'f' */ | |
2781 | special_sections_g, /* 'g' */ | |
2782 | special_sections_h, /* 'h' */ | |
2783 | special_sections_i, /* 'i' */ | |
2784 | NULL, /* 'j' */ | |
2785 | NULL, /* 'k' */ | |
2786 | special_sections_l, /* 'l' */ | |
2787 | NULL, /* 'm' */ | |
2788 | special_sections_n, /* 'n' */ | |
2789 | NULL, /* 'o' */ | |
2790 | special_sections_p, /* 'p' */ | |
2791 | NULL, /* 'q' */ | |
2792 | special_sections_r, /* 'r' */ | |
2793 | special_sections_s, /* 's' */ | |
2794 | special_sections_t, /* 't' */ | |
1b315056 CS |
2795 | NULL, /* 'u' */ |
2796 | NULL, /* 'v' */ | |
2797 | NULL, /* 'w' */ | |
2798 | NULL, /* 'x' */ | |
2799 | NULL, /* 'y' */ | |
2800 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2801 | }; |
2802 | ||
551b43fd AM |
2803 | const struct bfd_elf_special_section * |
2804 | _bfd_elf_get_special_section (const char *name, | |
2805 | const struct bfd_elf_special_section *spec, | |
2806 | unsigned int rela) | |
2f89ff8d L |
2807 | { |
2808 | int i; | |
7f4d3958 | 2809 | int len; |
7f4d3958 | 2810 | |
551b43fd | 2811 | len = strlen (name); |
7f4d3958 | 2812 | |
551b43fd | 2813 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2814 | { |
2815 | int suffix_len; | |
551b43fd | 2816 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2817 | |
2818 | if (len < prefix_len) | |
2819 | continue; | |
551b43fd | 2820 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2821 | continue; |
2822 | ||
551b43fd | 2823 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2824 | if (suffix_len <= 0) |
2825 | { | |
2826 | if (name[prefix_len] != 0) | |
2827 | { | |
2828 | if (suffix_len == 0) | |
2829 | continue; | |
2830 | if (name[prefix_len] != '.' | |
2831 | && (suffix_len == -2 | |
551b43fd | 2832 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2833 | continue; |
2834 | } | |
2835 | } | |
2836 | else | |
2837 | { | |
2838 | if (len < prefix_len + suffix_len) | |
2839 | continue; | |
2840 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2841 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2842 | suffix_len) != 0) |
2843 | continue; | |
2844 | } | |
551b43fd | 2845 | return &spec[i]; |
7dcb9820 | 2846 | } |
2f89ff8d L |
2847 | |
2848 | return NULL; | |
2849 | } | |
2850 | ||
7dcb9820 | 2851 | const struct bfd_elf_special_section * |
29ef7005 | 2852 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2853 | { |
551b43fd AM |
2854 | int i; |
2855 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2856 | const struct elf_backend_data *bed; |
2f89ff8d L |
2857 | |
2858 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2859 | if (sec->name == NULL) |
2860 | return NULL; | |
2f89ff8d | 2861 | |
29ef7005 L |
2862 | bed = get_elf_backend_data (abfd); |
2863 | spec = bed->special_sections; | |
2864 | if (spec) | |
2865 | { | |
2866 | spec = _bfd_elf_get_special_section (sec->name, | |
2867 | bed->special_sections, | |
2868 | sec->use_rela_p); | |
2869 | if (spec != NULL) | |
2870 | return spec; | |
2871 | } | |
2872 | ||
551b43fd AM |
2873 | if (sec->name[0] != '.') |
2874 | return NULL; | |
2f89ff8d | 2875 | |
551b43fd | 2876 | i = sec->name[1] - 'b'; |
1b315056 | 2877 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2878 | return NULL; |
2879 | ||
2880 | spec = special_sections[i]; | |
2f89ff8d | 2881 | |
551b43fd AM |
2882 | if (spec == NULL) |
2883 | return NULL; | |
2884 | ||
2885 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2886 | } |
2887 | ||
0a1b45a2 | 2888 | bool |
217aa764 | 2889 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2890 | { |
2891 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2892 | const struct elf_backend_data *bed; |
7dcb9820 | 2893 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2894 | |
f0abc2a1 AM |
2895 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2896 | if (sdata == NULL) | |
2897 | { | |
a50b1753 | 2898 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2899 | sizeof (*sdata)); |
f0abc2a1 | 2900 | if (sdata == NULL) |
0a1b45a2 | 2901 | return false; |
217aa764 | 2902 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2903 | } |
bf572ba0 | 2904 | |
551b43fd AM |
2905 | /* Indicate whether or not this section should use RELA relocations. */ |
2906 | bed = get_elf_backend_data (abfd); | |
2907 | sec->use_rela_p = bed->default_use_rela_p; | |
2908 | ||
8c803a2d AM |
2909 | /* Set up ELF section type and flags for newly created sections, if |
2910 | there is an ABI mandated section. */ | |
2911 | ssect = (*bed->get_sec_type_attr) (abfd, sec); | |
2912 | if (ssect != NULL) | |
2f89ff8d | 2913 | { |
8c803a2d AM |
2914 | elf_section_type (sec) = ssect->type; |
2915 | elf_section_flags (sec) = ssect->attr; | |
2f89ff8d L |
2916 | } |
2917 | ||
f592407e | 2918 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2919 | } |
2920 | ||
2921 | /* Create a new bfd section from an ELF program header. | |
2922 | ||
2923 | Since program segments have no names, we generate a synthetic name | |
2924 | of the form segment<NUM>, where NUM is generally the index in the | |
2925 | program header table. For segments that are split (see below) we | |
2926 | generate the names segment<NUM>a and segment<NUM>b. | |
2927 | ||
2928 | Note that some program segments may have a file size that is different than | |
2929 | (less than) the memory size. All this means is that at execution the | |
2930 | system must allocate the amount of memory specified by the memory size, | |
2931 | but only initialize it with the first "file size" bytes read from the | |
2932 | file. This would occur for example, with program segments consisting | |
2933 | of combined data+bss. | |
2934 | ||
2935 | To handle the above situation, this routine generates TWO bfd sections | |
2936 | for the single program segment. The first has the length specified by | |
2937 | the file size of the segment, and the second has the length specified | |
2938 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2939 | into its initialized and uninitialized parts. |
252b5132 RH |
2940 | |
2941 | */ | |
2942 | ||
0a1b45a2 | 2943 | bool |
217aa764 AM |
2944 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2945 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2946 | int hdr_index, |
a50b1753 | 2947 | const char *type_name) |
252b5132 RH |
2948 | { |
2949 | asection *newsect; | |
2950 | char *name; | |
2951 | char namebuf[64]; | |
d4c88bbb | 2952 | size_t len; |
252b5132 | 2953 | int split; |
502794d4 | 2954 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
2955 | |
2956 | split = ((hdr->p_memsz > 0) | |
2957 | && (hdr->p_filesz > 0) | |
2958 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2959 | |
2960 | if (hdr->p_filesz > 0) | |
252b5132 | 2961 | { |
91d6fa6a | 2962 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2963 | len = strlen (namebuf) + 1; |
a50b1753 | 2964 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c | 2965 | if (!name) |
0a1b45a2 | 2966 | return false; |
d5191d0c AM |
2967 | memcpy (name, namebuf, len); |
2968 | newsect = bfd_make_section (abfd, name); | |
2969 | if (newsect == NULL) | |
0a1b45a2 | 2970 | return false; |
502794d4 CE |
2971 | newsect->vma = hdr->p_vaddr / opb; |
2972 | newsect->lma = hdr->p_paddr / opb; | |
d5191d0c AM |
2973 | newsect->size = hdr->p_filesz; |
2974 | newsect->filepos = hdr->p_offset; | |
2975 | newsect->flags |= SEC_HAS_CONTENTS; | |
2976 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2977 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2978 | { |
d5191d0c AM |
2979 | newsect->flags |= SEC_ALLOC; |
2980 | newsect->flags |= SEC_LOAD; | |
2981 | if (hdr->p_flags & PF_X) | |
2982 | { | |
2983 | /* FIXME: all we known is that it has execute PERMISSION, | |
2984 | may be data. */ | |
2985 | newsect->flags |= SEC_CODE; | |
2986 | } | |
2987 | } | |
2988 | if (!(hdr->p_flags & PF_W)) | |
2989 | { | |
2990 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2991 | } |
252b5132 RH |
2992 | } |
2993 | ||
d5191d0c | 2994 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2995 | { |
d5191d0c AM |
2996 | bfd_vma align; |
2997 | ||
91d6fa6a | 2998 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2999 | len = strlen (namebuf) + 1; |
a50b1753 | 3000 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3001 | if (!name) |
0a1b45a2 | 3002 | return false; |
d4c88bbb | 3003 | memcpy (name, namebuf, len); |
252b5132 RH |
3004 | newsect = bfd_make_section (abfd, name); |
3005 | if (newsect == NULL) | |
0a1b45a2 | 3006 | return false; |
502794d4 CE |
3007 | newsect->vma = (hdr->p_vaddr + hdr->p_filesz) / opb; |
3008 | newsect->lma = (hdr->p_paddr + hdr->p_filesz) / opb; | |
eea6121a | 3009 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3010 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3011 | align = newsect->vma & -newsect->vma; | |
3012 | if (align == 0 || align > hdr->p_align) | |
3013 | align = hdr->p_align; | |
3014 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3015 | if (hdr->p_type == PT_LOAD) |
3016 | { | |
3017 | newsect->flags |= SEC_ALLOC; | |
3018 | if (hdr->p_flags & PF_X) | |
3019 | newsect->flags |= SEC_CODE; | |
3020 | } | |
3021 | if (!(hdr->p_flags & PF_W)) | |
3022 | newsect->flags |= SEC_READONLY; | |
3023 | } | |
3024 | ||
0a1b45a2 | 3025 | return true; |
252b5132 RH |
3026 | } |
3027 | ||
0a1b45a2 | 3028 | static bool |
864619bb KS |
3029 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) |
3030 | { | |
3031 | /* The return value is ignored. Build-ids are considered optional. */ | |
3032 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3033 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3034 | (templ, offset); | |
0a1b45a2 | 3035 | return false; |
864619bb KS |
3036 | } |
3037 | ||
0a1b45a2 | 3038 | bool |
91d6fa6a | 3039 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3040 | { |
9c5bfbb7 | 3041 | const struct elf_backend_data *bed; |
20cfcaae NC |
3042 | |
3043 | switch (hdr->p_type) | |
3044 | { | |
3045 | case PT_NULL: | |
91d6fa6a | 3046 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3047 | |
3048 | case PT_LOAD: | |
864619bb | 3049 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
0a1b45a2 | 3050 | return false; |
864619bb KS |
3051 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) |
3052 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
0a1b45a2 | 3053 | return true; |
20cfcaae NC |
3054 | |
3055 | case PT_DYNAMIC: | |
91d6fa6a | 3056 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3057 | |
3058 | case PT_INTERP: | |
91d6fa6a | 3059 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3060 | |
3061 | case PT_NOTE: | |
91d6fa6a | 3062 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
0a1b45a2 | 3063 | return false; |
276da9b3 L |
3064 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3065 | hdr->p_align)) | |
0a1b45a2 AM |
3066 | return false; |
3067 | return true; | |
20cfcaae NC |
3068 | |
3069 | case PT_SHLIB: | |
91d6fa6a | 3070 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3071 | |
3072 | case PT_PHDR: | |
91d6fa6a | 3073 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3074 | |
811072d8 | 3075 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3076 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3077 | "eh_frame_hdr"); |
3078 | ||
2b05f1b7 | 3079 | case PT_GNU_STACK: |
91d6fa6a | 3080 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3081 | |
8c37241b | 3082 | case PT_GNU_RELRO: |
91d6fa6a | 3083 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3084 | |
20cfcaae | 3085 | default: |
8c1acd09 | 3086 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3087 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3088 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3089 | } |
3090 | } | |
3091 | ||
d4730f92 BS |
3092 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3093 | REL or RELA. */ | |
3094 | ||
3095 | Elf_Internal_Shdr * | |
3096 | _bfd_elf_single_rel_hdr (asection *sec) | |
3097 | { | |
3098 | if (elf_section_data (sec)->rel.hdr) | |
3099 | { | |
3100 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3101 | return elf_section_data (sec)->rel.hdr; | |
3102 | } | |
3103 | else | |
3104 | return elf_section_data (sec)->rela.hdr; | |
3105 | } | |
3106 | ||
0a1b45a2 | 3107 | static bool |
3e19fb8f L |
3108 | _bfd_elf_set_reloc_sh_name (bfd *abfd, |
3109 | Elf_Internal_Shdr *rel_hdr, | |
3110 | const char *sec_name, | |
0a1b45a2 | 3111 | bool use_rela_p) |
3e19fb8f L |
3112 | { |
3113 | char *name = (char *) bfd_alloc (abfd, | |
3114 | sizeof ".rela" + strlen (sec_name)); | |
3115 | if (name == NULL) | |
0a1b45a2 | 3116 | return false; |
3e19fb8f L |
3117 | |
3118 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3119 | rel_hdr->sh_name = | |
3120 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
0a1b45a2 | 3121 | false); |
3e19fb8f | 3122 | if (rel_hdr->sh_name == (unsigned int) -1) |
0a1b45a2 | 3123 | return false; |
3e19fb8f | 3124 | |
0a1b45a2 | 3125 | return true; |
3e19fb8f L |
3126 | } |
3127 | ||
d4730f92 BS |
3128 | /* Allocate and initialize a section-header for a new reloc section, |
3129 | containing relocations against ASECT. It is stored in RELDATA. If | |
3130 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3131 | relocations. */ | |
23bc299b | 3132 | |
0a1b45a2 | 3133 | static bool |
217aa764 | 3134 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3135 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3136 | const char *sec_name, |
0a1b45a2 AM |
3137 | bool use_rela_p, |
3138 | bool delay_st_name_p) | |
23bc299b | 3139 | { |
d4730f92 | 3140 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3141 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3142 | |
d4730f92 | 3143 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3144 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3145 | reldata->hdr = rel_hdr; |
23bc299b | 3146 | |
3e19fb8f L |
3147 | if (delay_st_name_p) |
3148 | rel_hdr->sh_name = (unsigned int) -1; | |
3149 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3150 | use_rela_p)) | |
0a1b45a2 | 3151 | return false; |
23bc299b MM |
3152 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3153 | rel_hdr->sh_entsize = (use_rela_p | |
3154 | ? bed->s->sizeof_rela | |
3155 | : bed->s->sizeof_rel); | |
72de5009 | 3156 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3157 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3158 | rel_hdr->sh_addr = 0; |
3159 | rel_hdr->sh_size = 0; | |
3160 | rel_hdr->sh_offset = 0; | |
3161 | ||
0a1b45a2 | 3162 | return true; |
23bc299b MM |
3163 | } |
3164 | ||
94be91de JB |
3165 | /* Return the default section type based on the passed in section flags. */ |
3166 | ||
3167 | int | |
3168 | bfd_elf_get_default_section_type (flagword flags) | |
3169 | { | |
0e41bebb | 3170 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3171 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3172 | return SHT_NOBITS; |
3173 | return SHT_PROGBITS; | |
3174 | } | |
3175 | ||
d4730f92 BS |
3176 | struct fake_section_arg |
3177 | { | |
3178 | struct bfd_link_info *link_info; | |
0a1b45a2 | 3179 | bool failed; |
d4730f92 BS |
3180 | }; |
3181 | ||
252b5132 RH |
3182 | /* Set up an ELF internal section header for a section. */ |
3183 | ||
252b5132 | 3184 | static void |
d4730f92 | 3185 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3186 | { |
d4730f92 | 3187 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3188 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3189 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3190 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3191 | unsigned int sh_type; |
0ce398f1 | 3192 | const char *name = asect->name; |
0a1b45a2 | 3193 | bool delay_st_name_p = false; |
233bf4f8 | 3194 | bfd_vma mask; |
252b5132 | 3195 | |
d4730f92 | 3196 | if (arg->failed) |
252b5132 RH |
3197 | { |
3198 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3199 | loop. */ |
252b5132 RH |
3200 | return; |
3201 | } | |
3202 | ||
d4730f92 | 3203 | this_hdr = &esd->this_hdr; |
252b5132 | 3204 | |
f6fe1ccd | 3205 | if (arg->link_info) |
0ce398f1 | 3206 | { |
f6fe1ccd L |
3207 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3208 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3209 | && (asect->flags & SEC_DEBUGGING) | |
3210 | && name[1] == 'd' | |
3211 | && name[6] == '_') | |
3212 | { | |
3213 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3214 | compressed. */ | |
3215 | asect->flags |= SEC_ELF_COMPRESS; | |
dd905818 | 3216 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3217 | name to section name section after it is compressed in |
3218 | _bfd_elf_assign_file_positions_for_non_load. */ | |
0a1b45a2 | 3219 | delay_st_name_p = true; |
f6fe1ccd L |
3220 | } |
3221 | } | |
3222 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3223 | { | |
3224 | /* objcopy: rename output DWARF debug section. */ | |
3225 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3226 | { | |
3227 | /* When we decompress or compress with SHF_COMPRESSED, | |
3228 | convert section name from .zdebug_* to .debug_* if | |
3229 | needed. */ | |
3230 | if (name[1] == 'z') | |
3231 | { | |
3232 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3233 | if (new_name == NULL) | |
3234 | { | |
0a1b45a2 | 3235 | arg->failed = true; |
f6fe1ccd L |
3236 | return; |
3237 | } | |
3238 | name = new_name; | |
3239 | } | |
3240 | } | |
3241 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3242 | { |
f6fe1ccd L |
3243 | /* PR binutils/18087: Compression does not always make a |
3244 | section smaller. So only rename the section when | |
3245 | compression has actually taken place. If input section | |
3246 | name is .zdebug_*, we should never compress it again. */ | |
3247 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3248 | if (new_name == NULL) |
3249 | { | |
0a1b45a2 | 3250 | arg->failed = true; |
0ce398f1 L |
3251 | return; |
3252 | } | |
f6fe1ccd L |
3253 | BFD_ASSERT (name[1] != 'z'); |
3254 | name = new_name; | |
0ce398f1 L |
3255 | } |
3256 | } | |
3257 | ||
3e19fb8f L |
3258 | if (delay_st_name_p) |
3259 | this_hdr->sh_name = (unsigned int) -1; | |
3260 | else | |
252b5132 | 3261 | { |
3e19fb8f L |
3262 | this_hdr->sh_name |
3263 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
0a1b45a2 | 3264 | name, false); |
3e19fb8f L |
3265 | if (this_hdr->sh_name == (unsigned int) -1) |
3266 | { | |
0a1b45a2 | 3267 | arg->failed = true; |
3e19fb8f L |
3268 | return; |
3269 | } | |
252b5132 RH |
3270 | } |
3271 | ||
a4d8e49b | 3272 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3273 | |
3274 | if ((asect->flags & SEC_ALLOC) != 0 | |
3275 | || asect->user_set_vma) | |
502794d4 | 3276 | this_hdr->sh_addr = asect->vma * bfd_octets_per_byte (abfd, asect); |
252b5132 RH |
3277 | else |
3278 | this_hdr->sh_addr = 0; | |
3279 | ||
3280 | this_hdr->sh_offset = 0; | |
eea6121a | 3281 | this_hdr->sh_size = asect->size; |
252b5132 | 3282 | this_hdr->sh_link = 0; |
c86934ce NC |
3283 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3284 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3285 | { | |
4eca0228 | 3286 | _bfd_error_handler |
695344c0 | 3287 | /* xgettext:c-format */ |
9793eb77 | 3288 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3289 | abfd, asect->alignment_power, asect); |
0a1b45a2 | 3290 | arg->failed = true; |
c86934ce NC |
3291 | return; |
3292 | } | |
233bf4f8 AM |
3293 | /* Set sh_addralign to the highest power of two given by alignment |
3294 | consistent with the section VMA. Linker scripts can force VMA. */ | |
3295 | mask = ((bfd_vma) 1 << asect->alignment_power) | this_hdr->sh_addr; | |
3296 | this_hdr->sh_addralign = mask & -mask; | |
252b5132 RH |
3297 | /* The sh_entsize and sh_info fields may have been set already by |
3298 | copy_private_section_data. */ | |
3299 | ||
3300 | this_hdr->bfd_section = asect; | |
3301 | this_hdr->contents = NULL; | |
3302 | ||
3cddba1e L |
3303 | /* If the section type is unspecified, we set it based on |
3304 | asect->flags. */ | |
98ece1b3 AM |
3305 | if ((asect->flags & SEC_GROUP) != 0) |
3306 | sh_type = SHT_GROUP; | |
98ece1b3 | 3307 | else |
94be91de | 3308 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3309 | |
3cddba1e | 3310 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3311 | this_hdr->sh_type = sh_type; |
3312 | else if (this_hdr->sh_type == SHT_NOBITS | |
3313 | && sh_type == SHT_PROGBITS | |
3314 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3315 | { |
98ece1b3 AM |
3316 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3317 | allow the link to proceed. This can happen when users link | |
3318 | non-bss input sections to bss output sections, or emit data | |
3319 | to a bss output section via a linker script. */ | |
4eca0228 | 3320 | _bfd_error_handler |
871b3ab2 | 3321 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3322 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3323 | } |
3324 | ||
2f89ff8d | 3325 | switch (this_hdr->sh_type) |
252b5132 | 3326 | { |
2f89ff8d | 3327 | default: |
2f89ff8d L |
3328 | break; |
3329 | ||
3330 | case SHT_STRTAB: | |
2f89ff8d L |
3331 | case SHT_NOTE: |
3332 | case SHT_NOBITS: | |
3333 | case SHT_PROGBITS: | |
3334 | break; | |
606851fb AM |
3335 | |
3336 | case SHT_INIT_ARRAY: | |
3337 | case SHT_FINI_ARRAY: | |
3338 | case SHT_PREINIT_ARRAY: | |
3339 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3340 | break; | |
2f89ff8d L |
3341 | |
3342 | case SHT_HASH: | |
c7ac6ff8 | 3343 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3344 | break; |
5de3bf90 | 3345 | |
2f89ff8d | 3346 | case SHT_DYNSYM: |
252b5132 | 3347 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3348 | break; |
3349 | ||
3350 | case SHT_DYNAMIC: | |
252b5132 | 3351 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3352 | break; |
3353 | ||
3354 | case SHT_RELA: | |
3355 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3356 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3357 | break; | |
3358 | ||
3359 | case SHT_REL: | |
3360 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3361 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3362 | break; | |
3363 | ||
3364 | case SHT_GNU_versym: | |
252b5132 | 3365 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3366 | break; |
3367 | ||
3368 | case SHT_GNU_verdef: | |
252b5132 RH |
3369 | this_hdr->sh_entsize = 0; |
3370 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3371 | cverdefs. The linker will set cverdefs, but sh_info will be |
3372 | zero. */ | |
252b5132 RH |
3373 | if (this_hdr->sh_info == 0) |
3374 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3375 | else | |
3376 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3377 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3378 | break; |
3379 | ||
3380 | case SHT_GNU_verneed: | |
252b5132 RH |
3381 | this_hdr->sh_entsize = 0; |
3382 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3383 | cverrefs. The linker will set cverrefs, but sh_info will be |
3384 | zero. */ | |
252b5132 RH |
3385 | if (this_hdr->sh_info == 0) |
3386 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3387 | else | |
3388 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3389 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3390 | break; |
3391 | ||
3392 | case SHT_GROUP: | |
1783205a | 3393 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3394 | break; |
fdc90cb4 JJ |
3395 | |
3396 | case SHT_GNU_HASH: | |
3397 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3398 | break; | |
dbb410c3 | 3399 | } |
252b5132 RH |
3400 | |
3401 | if ((asect->flags & SEC_ALLOC) != 0) | |
3402 | this_hdr->sh_flags |= SHF_ALLOC; | |
3403 | if ((asect->flags & SEC_READONLY) == 0) | |
3404 | this_hdr->sh_flags |= SHF_WRITE; | |
3405 | if ((asect->flags & SEC_CODE) != 0) | |
3406 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3407 | if ((asect->flags & SEC_MERGE) != 0) |
3408 | { | |
3409 | this_hdr->sh_flags |= SHF_MERGE; | |
3410 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3411 | } |
84865015 NC |
3412 | if ((asect->flags & SEC_STRINGS) != 0) |
3413 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3414 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3415 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3416 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3417 | { |
3418 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3419 | if (asect->size == 0 |
3420 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3421 | { |
3a800eb9 | 3422 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3423 | |
704afa60 | 3424 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3425 | if (o != NULL) |
3426 | { | |
704afa60 | 3427 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3428 | if (this_hdr->sh_size != 0) |
3429 | this_hdr->sh_type = SHT_NOBITS; | |
3430 | } | |
704afa60 JJ |
3431 | } |
3432 | } | |
18ae9cc1 L |
3433 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3434 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3435 | |
d4730f92 BS |
3436 | /* If the section has relocs, set up a section header for the |
3437 | SHT_REL[A] section. If two relocation sections are required for | |
3438 | this section, it is up to the processor-specific back-end to | |
3439 | create the other. */ | |
3440 | if ((asect->flags & SEC_RELOC) != 0) | |
3441 | { | |
3442 | /* When doing a relocatable link, create both REL and RELA sections if | |
3443 | needed. */ | |
3444 | if (arg->link_info | |
3445 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3446 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3447 | && (bfd_link_relocatable (arg->link_info) |
3448 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3449 | { |
3450 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3451 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
0a1b45a2 | 3452 | false, delay_st_name_p)) |
d4730f92 | 3453 | { |
0a1b45a2 | 3454 | arg->failed = true; |
d4730f92 BS |
3455 | return; |
3456 | } | |
3457 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3458 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
0a1b45a2 | 3459 | true, delay_st_name_p)) |
d4730f92 | 3460 | { |
0a1b45a2 | 3461 | arg->failed = true; |
d4730f92 BS |
3462 | return; |
3463 | } | |
3464 | } | |
3465 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3466 | (asect->use_rela_p | |
3467 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3468 | name, |
3e19fb8f L |
3469 | asect->use_rela_p, |
3470 | delay_st_name_p)) | |
db4677b8 | 3471 | { |
0a1b45a2 | 3472 | arg->failed = true; |
db4677b8 AM |
3473 | return; |
3474 | } | |
d4730f92 BS |
3475 | } |
3476 | ||
252b5132 | 3477 | /* Check for processor-specific section types. */ |
0414f35b | 3478 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3479 | if (bed->elf_backend_fake_sections |
3480 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 | 3481 | { |
0a1b45a2 | 3482 | arg->failed = true; |
db4677b8 AM |
3483 | return; |
3484 | } | |
252b5132 | 3485 | |
42bb2e33 | 3486 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3487 | { |
3488 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3489 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3490 | this_hdr->sh_type = sh_type; |
3491 | } | |
252b5132 RH |
3492 | } |
3493 | ||
bcacc0f5 AM |
3494 | /* Fill in the contents of a SHT_GROUP section. Called from |
3495 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3496 | when ELF targets use the generic linker, ld. Called for ld -r | |
3497 | from bfd_elf_final_link. */ | |
dbb410c3 | 3498 | |
1126897b | 3499 | void |
217aa764 | 3500 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3501 | { |
0a1b45a2 | 3502 | bool *failedptr = (bool *) failedptrarg; |
9dce4196 | 3503 | asection *elt, *first; |
dbb410c3 | 3504 | unsigned char *loc; |
0a1b45a2 | 3505 | bool gas; |
dbb410c3 | 3506 | |
7e4111ad L |
3507 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3508 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3509 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3510 | || sec->size == 0 | |
dbb410c3 AM |
3511 | || *failedptr) |
3512 | return; | |
3513 | ||
bcacc0f5 AM |
3514 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3515 | { | |
3516 | unsigned long symindx = 0; | |
3517 | ||
3518 | /* elf_group_id will have been set up by objcopy and the | |
3519 | generic linker. */ | |
3520 | if (elf_group_id (sec) != NULL) | |
3521 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3522 | |
bcacc0f5 AM |
3523 | if (symindx == 0) |
3524 | { | |
3525 | /* If called from the assembler, swap_out_syms will have set up | |
6a541707 NC |
3526 | elf_section_syms. |
3527 | PR 25699: A corrupt input file could contain bogus group info. */ | |
3528 | if (elf_section_syms (abfd) == NULL) | |
3529 | { | |
0a1b45a2 | 3530 | *failedptr = true; |
6a541707 NC |
3531 | return; |
3532 | } | |
bcacc0f5 AM |
3533 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; |
3534 | } | |
3535 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3536 | } | |
3537 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3538 | { |
bcacc0f5 AM |
3539 | /* The ELF backend linker sets sh_info to -2 when the group |
3540 | signature symbol is global, and thus the index can't be | |
3541 | set until all local symbols are output. */ | |
53720c49 AM |
3542 | asection *igroup; |
3543 | struct bfd_elf_section_data *sec_data; | |
3544 | unsigned long symndx; | |
3545 | unsigned long extsymoff; | |
bcacc0f5 AM |
3546 | struct elf_link_hash_entry *h; |
3547 | ||
53720c49 AM |
3548 | /* The point of this little dance to the first SHF_GROUP section |
3549 | then back to the SHT_GROUP section is that this gets us to | |
3550 | the SHT_GROUP in the input object. */ | |
3551 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3552 | sec_data = elf_section_data (igroup); | |
3553 | symndx = sec_data->this_hdr.sh_info; | |
3554 | extsymoff = 0; | |
bcacc0f5 AM |
3555 | if (!elf_bad_symtab (igroup->owner)) |
3556 | { | |
3557 | Elf_Internal_Shdr *symtab_hdr; | |
3558 | ||
3559 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3560 | extsymoff = symtab_hdr->sh_info; | |
3561 | } | |
3562 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3563 | while (h->root.type == bfd_link_hash_indirect | |
3564 | || h->root.type == bfd_link_hash_warning) | |
3565 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3566 | ||
3567 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3568 | } |
dbb410c3 | 3569 | |
1126897b | 3570 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
0a1b45a2 | 3571 | gas = true; |
dbb410c3 AM |
3572 | if (sec->contents == NULL) |
3573 | { | |
0a1b45a2 | 3574 | gas = false; |
a50b1753 | 3575 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3576 | |
3577 | /* Arrange for the section to be written out. */ | |
3578 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3579 | if (sec->contents == NULL) |
3580 | { | |
0a1b45a2 | 3581 | *failedptr = true; |
dbb410c3 AM |
3582 | return; |
3583 | } | |
3584 | } | |
3585 | ||
eea6121a | 3586 | loc = sec->contents + sec->size; |
dbb410c3 | 3587 | |
9dce4196 AM |
3588 | /* Get the pointer to the first section in the group that gas |
3589 | squirreled away here. objcopy arranges for this to be set to the | |
3590 | start of the input section group. */ | |
3591 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3592 | |
3593 | /* First element is a flag word. Rest of section is elf section | |
3594 | indices for all the sections of the group. Write them backwards | |
3595 | just to keep the group in the same order as given in .section | |
3596 | directives, not that it matters. */ | |
3597 | while (elt != NULL) | |
3598 | { | |
9dce4196 | 3599 | asection *s; |
9dce4196 | 3600 | |
9dce4196 | 3601 | s = elt; |
415f38a6 AM |
3602 | if (!gas) |
3603 | s = s->output_section; | |
3604 | if (s != NULL | |
3605 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3606 | { |
db4677b8 | 3607 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3608 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3609 | ||
3610 | if (elf_sec->rel.hdr != NULL | |
3611 | && (gas | |
3612 | || (input_elf_sec->rel.hdr != NULL | |
3613 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3614 | { |
28e07a05 | 3615 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3616 | loc -= 4; |
3617 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3618 | } | |
28e07a05 AM |
3619 | if (elf_sec->rela.hdr != NULL |
3620 | && (gas | |
3621 | || (input_elf_sec->rela.hdr != NULL | |
3622 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3623 | { |
28e07a05 | 3624 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3625 | loc -= 4; |
3626 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3627 | } | |
01e1a5bc | 3628 | loc -= 4; |
db4677b8 | 3629 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3630 | } |
945906ff | 3631 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3632 | if (elt == first) |
3633 | break; | |
dbb410c3 AM |
3634 | } |
3635 | ||
7bdf4127 AB |
3636 | loc -= 4; |
3637 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3638 | |
9dce4196 | 3639 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3640 | } |
3641 | ||
bce964aa AM |
3642 | /* Given NAME, the name of a relocation section stripped of its |
3643 | .rel/.rela prefix, return the section in ABFD to which the | |
3644 | relocations apply. */ | |
bd53a53a L |
3645 | |
3646 | asection * | |
bce964aa AM |
3647 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3648 | { | |
3649 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3650 | section likely apply to .got.plt or .got section. */ | |
3651 | if (get_elf_backend_data (abfd)->want_got_plt | |
3652 | && strcmp (name, ".plt") == 0) | |
3653 | { | |
3654 | asection *sec; | |
3655 | ||
3656 | name = ".got.plt"; | |
3657 | sec = bfd_get_section_by_name (abfd, name); | |
3658 | if (sec != NULL) | |
3659 | return sec; | |
3660 | name = ".got"; | |
3661 | } | |
3662 | ||
3663 | return bfd_get_section_by_name (abfd, name); | |
3664 | } | |
3665 | ||
3666 | /* Return the section to which RELOC_SEC applies. */ | |
3667 | ||
3668 | static asection * | |
3669 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3670 | { |
3671 | const char *name; | |
3672 | unsigned int type; | |
3673 | bfd *abfd; | |
bce964aa | 3674 | const struct elf_backend_data *bed; |
bd53a53a L |
3675 | |
3676 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3677 | if (type != SHT_REL && type != SHT_RELA) | |
3678 | return NULL; | |
3679 | ||
3680 | /* We look up the section the relocs apply to by name. */ | |
3681 | name = reloc_sec->name; | |
3f3328b8 | 3682 | if (!startswith (name, ".rel")) |
bce964aa AM |
3683 | return NULL; |
3684 | name += 4; | |
3685 | if (type == SHT_RELA && *name++ != 'a') | |
3686 | return NULL; | |
bd53a53a | 3687 | |
bd53a53a | 3688 | abfd = reloc_sec->owner; |
bce964aa AM |
3689 | bed = get_elf_backend_data (abfd); |
3690 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3691 | } |
3692 | ||
252b5132 RH |
3693 | /* Assign all ELF section numbers. The dummy first section is handled here |
3694 | too. The link/info pointers for the standard section types are filled | |
67411cbf AM |
3695 | in here too, while we're at it. LINK_INFO will be 0 when arriving |
3696 | here for objcopy, and when using the generic ELF linker. */ | |
252b5132 | 3697 | |
0a1b45a2 | 3698 | static bool |
da9f89d4 | 3699 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3700 | { |
3701 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3702 | asection *sec; | |
3e19fb8f | 3703 | unsigned int section_number; |
252b5132 | 3704 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3705 | struct bfd_elf_section_data *d; |
0a1b45a2 | 3706 | bool need_symtab; |
446f7ed5 | 3707 | size_t amt; |
252b5132 RH |
3708 | |
3709 | section_number = 1; | |
3710 | ||
2b0f7ef9 JJ |
3711 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3712 | ||
da9f89d4 | 3713 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3714 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3715 | { |
ef53be89 | 3716 | size_t reloc_count = 0; |
14f2c699 | 3717 | |
da9f89d4 | 3718 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3719 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3720 | { |
5daa8fe7 | 3721 | d = elf_section_data (sec); |
da9f89d4 L |
3722 | |
3723 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3724 | { |
5daa8fe7 | 3725 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3726 | { |
3727 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3728 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3729 | abfd->section_count--; |
da9f89d4 | 3730 | } |
08a40648 | 3731 | else |
4fbb74a6 | 3732 | d->this_idx = section_number++; |
da9f89d4 | 3733 | } |
14f2c699 L |
3734 | |
3735 | /* Count relocations. */ | |
3736 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3737 | } |
14f2c699 L |
3738 | |
3739 | /* Clear HAS_RELOC if there are no relocations. */ | |
3740 | if (reloc_count == 0) | |
3741 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3742 | } |
3743 | ||
3744 | for (sec = abfd->sections; sec; sec = sec->next) | |
3745 | { | |
3746 | d = elf_section_data (sec); | |
3747 | ||
3748 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3749 | d->this_idx = section_number++; |
3e19fb8f L |
3750 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3751 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3752 | if (d->rel.hdr) |
2b0f7ef9 | 3753 | { |
d4730f92 | 3754 | d->rel.idx = section_number++; |
3e19fb8f L |
3755 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3756 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3757 | } |
d4730f92 BS |
3758 | else |
3759 | d->rel.idx = 0; | |
23bc299b | 3760 | |
d4730f92 | 3761 | if (d->rela.hdr) |
2b0f7ef9 | 3762 | { |
d4730f92 | 3763 | d->rela.idx = section_number++; |
3e19fb8f L |
3764 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3765 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3766 | } |
23bc299b | 3767 | else |
d4730f92 | 3768 | d->rela.idx = 0; |
252b5132 RH |
3769 | } |
3770 | ||
3516e984 L |
3771 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3772 | || (link_info == NULL | |
3773 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3774 | == HAS_RELOC))); | |
3775 | if (need_symtab) | |
252b5132 | 3776 | { |
12bd6957 | 3777 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3778 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3779 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3780 | { |
7a6e0d89 | 3781 | elf_section_list *entry; |
6a40cf0c NC |
3782 | |
3783 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3784 | ||
7a6e0d89 | 3785 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3786 | entry->ndx = section_number++; |
3787 | elf_symtab_shndx_list (abfd) = entry; | |
3788 | entry->hdr.sh_name | |
9ad5cbcf | 3789 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
0a1b45a2 | 3790 | ".symtab_shndx", false); |
6a40cf0c | 3791 | if (entry->hdr.sh_name == (unsigned int) -1) |
0a1b45a2 | 3792 | return false; |
9ad5cbcf | 3793 | } |
12bd6957 | 3794 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3795 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3796 | } |
3797 | ||
dd905818 NC |
3798 | elf_shstrtab_sec (abfd) = section_number++; |
3799 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3800 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3801 | ||
1c52a645 L |
3802 | if (section_number >= SHN_LORESERVE) |
3803 | { | |
695344c0 | 3804 | /* xgettext:c-format */ |
871b3ab2 | 3805 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 | 3806 | abfd, section_number); |
0a1b45a2 | 3807 | return false; |
1c52a645 L |
3808 | } |
3809 | ||
9ad5cbcf | 3810 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3811 | elf_elfheader (abfd)->e_shnum = section_number; |
3812 | ||
3813 | /* Set up the list of section header pointers, in agreement with the | |
3814 | indices. */ | |
446f7ed5 AM |
3815 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
3816 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
252b5132 | 3817 | if (i_shdrp == NULL) |
0a1b45a2 | 3818 | return false; |
252b5132 | 3819 | |
a50b1753 | 3820 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3821 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3822 | if (i_shdrp[0] == NULL) |
3823 | { | |
3824 | bfd_release (abfd, i_shdrp); | |
0a1b45a2 | 3825 | return false; |
252b5132 | 3826 | } |
252b5132 RH |
3827 | |
3828 | elf_elfsections (abfd) = i_shdrp; | |
3829 | ||
12bd6957 | 3830 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3831 | if (need_symtab) |
252b5132 | 3832 | { |
12bd6957 | 3833 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3834 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3835 | { |
6a40cf0c NC |
3836 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3837 | BFD_ASSERT (entry != NULL); | |
3838 | i_shdrp[entry->ndx] = & entry->hdr; | |
3839 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3840 | } |
12bd6957 AM |
3841 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3842 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3843 | } |
38ce5b11 | 3844 | |
252b5132 RH |
3845 | for (sec = abfd->sections; sec; sec = sec->next) |
3846 | { | |
252b5132 | 3847 | asection *s; |
252b5132 | 3848 | |
91d6fa6a NC |
3849 | d = elf_section_data (sec); |
3850 | ||
252b5132 | 3851 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3852 | if (d->rel.idx != 0) |
3853 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3854 | if (d->rela.idx != 0) | |
3855 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3856 | |
3857 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3858 | ||
3859 | /* sh_link of a reloc section is the section index of the symbol | |
3860 | table. sh_info is the section index of the section to which | |
3861 | the relocation entries apply. */ | |
d4730f92 | 3862 | if (d->rel.idx != 0) |
252b5132 | 3863 | { |
12bd6957 | 3864 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3865 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3866 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3867 | } |
d4730f92 | 3868 | if (d->rela.idx != 0) |
23bc299b | 3869 | { |
12bd6957 | 3870 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3871 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3872 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3873 | } |
252b5132 | 3874 | |
38ce5b11 L |
3875 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3876 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3877 | { | |
3878 | s = elf_linked_to_section (sec); | |
b71702f1 NC |
3879 | /* We can now have a NULL linked section pointer. |
3880 | This happens when the sh_link field is 0, which is done | |
3881 | when a linked to section is discarded but the linking | |
3882 | section has been retained for some reason. */ | |
38ce5b11 | 3883 | if (s) |
38ce5b11 | 3884 | { |
67411cbf AM |
3885 | /* Check discarded linkonce section. */ |
3886 | if (discarded_section (s)) | |
38ce5b11 | 3887 | { |
67411cbf AM |
3888 | asection *kept; |
3889 | _bfd_error_handler | |
3890 | /* xgettext:c-format */ | |
3891 | (_("%pB: sh_link of section `%pA' points to" | |
3892 | " discarded section `%pA' of `%pB'"), | |
3893 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3894 | /* Point to the kept section if it has the same | |
3895 | size as the discarded one. */ | |
3896 | kept = _bfd_elf_check_kept_section (s, link_info); | |
3897 | if (kept == NULL) | |
f2876037 | 3898 | { |
f2876037 | 3899 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3900 | return false; |
f2876037 | 3901 | } |
67411cbf AM |
3902 | s = kept; |
3903 | } | |
3904 | /* Handle objcopy. */ | |
3905 | else if (s->output_section == NULL) | |
3906 | { | |
3907 | _bfd_error_handler | |
3908 | /* xgettext:c-format */ | |
3909 | (_("%pB: sh_link of section `%pA' points to" | |
3910 | " removed section `%pA' of `%pB'"), | |
3911 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3912 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 3913 | return false; |
f2876037 | 3914 | } |
67411cbf | 3915 | s = s->output_section; |
ccd2ec6a L |
3916 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3917 | } | |
38ce5b11 L |
3918 | } |
3919 | ||
252b5132 RH |
3920 | switch (d->this_hdr.sh_type) |
3921 | { | |
3922 | case SHT_REL: | |
3923 | case SHT_RELA: | |
3924 | /* A reloc section which we are treating as a normal BFD | |
3925 | section. sh_link is the section index of the symbol | |
3926 | table. sh_info is the section index of the section to | |
3927 | which the relocation entries apply. We assume that an | |
3928 | allocated reloc section uses the dynamic symbol table. | |
3929 | FIXME: How can we be sure? */ | |
3930 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3931 | if (s != NULL) | |
3932 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3933 | ||
bce964aa | 3934 | s = elf_get_reloc_section (sec); |
252b5132 | 3935 | if (s != NULL) |
9ef5d938 L |
3936 | { |
3937 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3938 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3939 | } | |
252b5132 RH |
3940 | break; |
3941 | ||
3942 | case SHT_STRTAB: | |
3943 | /* We assume that a section named .stab*str is a stabs | |
3944 | string section. We look for a section with the same name | |
3945 | but without the trailing ``str'', and set its sh_link | |
3946 | field to point to this section. */ | |
08dedd66 | 3947 | if (startswith (sec->name, ".stab") |
252b5132 RH |
3948 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3949 | { | |
3950 | size_t len; | |
3951 | char *alc; | |
3952 | ||
3953 | len = strlen (sec->name); | |
a50b1753 | 3954 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3955 | if (alc == NULL) |
0a1b45a2 | 3956 | return false; |
d4c88bbb | 3957 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3958 | alc[len - 3] = '\0'; |
3959 | s = bfd_get_section_by_name (abfd, alc); | |
3960 | free (alc); | |
3961 | if (s != NULL) | |
3962 | { | |
3963 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3964 | ||
3965 | /* This is a .stab section. */ | |
34ca5531 | 3966 | elf_section_data (s)->this_hdr.sh_entsize = 12; |
252b5132 RH |
3967 | } |
3968 | } | |
3969 | break; | |
3970 | ||
3971 | case SHT_DYNAMIC: | |
3972 | case SHT_DYNSYM: | |
3973 | case SHT_GNU_verneed: | |
3974 | case SHT_GNU_verdef: | |
3975 | /* sh_link is the section header index of the string table | |
3976 | used for the dynamic entries, or the symbol table, or the | |
3977 | version strings. */ | |
3978 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3979 | if (s != NULL) | |
3980 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3981 | break; | |
3982 | ||
7f1204bb JJ |
3983 | case SHT_GNU_LIBLIST: |
3984 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3985 | list used for the dynamic entries, or the symbol table, or |
3986 | the version strings. */ | |
7f1204bb JJ |
3987 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3988 | ? ".dynstr" : ".gnu.libstr"); | |
3989 | if (s != NULL) | |
3990 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3991 | break; | |
3992 | ||
252b5132 | 3993 | case SHT_HASH: |
fdc90cb4 | 3994 | case SHT_GNU_HASH: |
252b5132 RH |
3995 | case SHT_GNU_versym: |
3996 | /* sh_link is the section header index of the symbol table | |
3997 | this hash table or version table is for. */ | |
3998 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3999 | if (s != NULL) | |
4000 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4001 | break; | |
dbb410c3 AM |
4002 | |
4003 | case SHT_GROUP: | |
12bd6957 | 4004 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4005 | } |
4006 | } | |
4007 | ||
3e19fb8f L |
4008 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4009 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4010 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4011 | ||
0a1b45a2 | 4012 | return true; |
252b5132 RH |
4013 | } |
4014 | ||
0a1b45a2 | 4015 | static bool |
217aa764 | 4016 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4017 | { |
4018 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4019 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4020 | if (bed->elf_backend_sym_is_global) |
4021 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4022 | |
e47bf690 | 4023 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4024 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4025 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4026 | } |
4027 | ||
76359541 TP |
4028 | /* Filter global symbols of ABFD to include in the import library. All |
4029 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4030 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4031 | the beginning of that array. | |
4032 | ||
4033 | Returns the number of symbols to keep. */ | |
4034 | ||
4035 | unsigned int | |
4036 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4037 | asymbol **syms, long symcount) | |
4038 | { | |
4039 | long src_count, dst_count = 0; | |
4040 | ||
4041 | for (src_count = 0; src_count < symcount; src_count++) | |
4042 | { | |
4043 | asymbol *sym = syms[src_count]; | |
4044 | char *name = (char *) bfd_asymbol_name (sym); | |
4045 | struct bfd_link_hash_entry *h; | |
4046 | ||
4047 | if (!sym_is_global (abfd, sym)) | |
4048 | continue; | |
4049 | ||
0a1b45a2 | 4050 | h = bfd_link_hash_lookup (info->hash, name, false, false, false); |
5df1bc57 AM |
4051 | if (h == NULL) |
4052 | continue; | |
76359541 TP |
4053 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4054 | continue; | |
76359541 TP |
4055 | if (h->linker_def || h->ldscript_def) |
4056 | continue; | |
4057 | ||
4058 | syms[dst_count++] = sym; | |
4059 | } | |
4060 | ||
4061 | syms[dst_count] = NULL; | |
4062 | ||
4063 | return dst_count; | |
4064 | } | |
4065 | ||
5372391b | 4066 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4067 | output, that are duplicates or there is no BFD section. */ |
5372391b | 4068 | |
0a1b45a2 | 4069 | static bool |
5372391b AM |
4070 | ignore_section_sym (bfd *abfd, asymbol *sym) |
4071 | { | |
c6d8cab4 L |
4072 | elf_symbol_type *type_ptr; |
4073 | ||
db0c309f | 4074 | if (sym == NULL) |
0a1b45a2 | 4075 | return false; |
db0c309f | 4076 | |
c6d8cab4 | 4077 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
0a1b45a2 | 4078 | return false; |
c6d8cab4 | 4079 | |
d1bcae83 L |
4080 | /* Ignore the section symbol if it isn't used. */ |
4081 | if ((sym->flags & BSF_SECTION_SYM_USED) == 0) | |
0a1b45a2 | 4082 | return true; |
d1bcae83 | 4083 | |
db0c309f | 4084 | if (sym->section == NULL) |
0a1b45a2 | 4085 | return true; |
db0c309f | 4086 | |
c1229f84 | 4087 | type_ptr = elf_symbol_from (sym); |
c6d8cab4 L |
4088 | return ((type_ptr != NULL |
4089 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4090 | && bfd_is_abs_section (sym->section)) | |
4091 | || !(sym->section->owner == abfd | |
db0c309f NC |
4092 | || (sym->section->output_section != NULL |
4093 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4094 | && sym->section->output_offset == 0) |
4095 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4096 | } |
4097 | ||
2633a79c AM |
4098 | /* Map symbol from it's internal number to the external number, moving |
4099 | all local symbols to be at the head of the list. */ | |
4100 | ||
0a1b45a2 | 4101 | static bool |
12bd6957 | 4102 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4103 | { |
dc810e39 | 4104 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4105 | asymbol **syms = bfd_get_outsymbols (abfd); |
4106 | asymbol **sect_syms; | |
dc810e39 AM |
4107 | unsigned int num_locals = 0; |
4108 | unsigned int num_globals = 0; | |
4109 | unsigned int num_locals2 = 0; | |
4110 | unsigned int num_globals2 = 0; | |
7292b3ac | 4111 | unsigned int max_index = 0; |
dc810e39 | 4112 | unsigned int idx; |
252b5132 RH |
4113 | asection *asect; |
4114 | asymbol **new_syms; | |
446f7ed5 | 4115 | size_t amt; |
252b5132 RH |
4116 | |
4117 | #ifdef DEBUG | |
4118 | fprintf (stderr, "elf_map_symbols\n"); | |
4119 | fflush (stderr); | |
4120 | #endif | |
4121 | ||
252b5132 RH |
4122 | for (asect = abfd->sections; asect; asect = asect->next) |
4123 | { | |
4124 | if (max_index < asect->index) | |
4125 | max_index = asect->index; | |
4126 | } | |
4127 | ||
4128 | max_index++; | |
446f7ed5 AM |
4129 | amt = max_index * sizeof (asymbol *); |
4130 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 | 4131 | if (sect_syms == NULL) |
0a1b45a2 | 4132 | return false; |
252b5132 | 4133 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4134 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4135 | |
079e9a2f AM |
4136 | /* Init sect_syms entries for any section symbols we have already |
4137 | decided to output. */ | |
252b5132 RH |
4138 | for (idx = 0; idx < symcount; idx++) |
4139 | { | |
dc810e39 | 4140 | asymbol *sym = syms[idx]; |
c044fabd | 4141 | |
252b5132 | 4142 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4143 | && sym->value == 0 |
2633a79c AM |
4144 | && !ignore_section_sym (abfd, sym) |
4145 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4146 | { |
5372391b | 4147 | asection *sec = sym->section; |
252b5132 | 4148 | |
5372391b AM |
4149 | if (sec->owner != abfd) |
4150 | sec = sec->output_section; | |
252b5132 | 4151 | |
5372391b | 4152 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4153 | } |
4154 | } | |
4155 | ||
252b5132 RH |
4156 | /* Classify all of the symbols. */ |
4157 | for (idx = 0; idx < symcount; idx++) | |
4158 | { | |
2633a79c | 4159 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4160 | num_globals++; |
2633a79c AM |
4161 | else if (!ignore_section_sym (abfd, syms[idx])) |
4162 | num_locals++; | |
252b5132 | 4163 | } |
079e9a2f | 4164 | |
5372391b | 4165 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4166 | sections will already have a section symbol in outsymbols, but |
4167 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4168 | at least in that case. */ | |
252b5132 RH |
4169 | for (asect = abfd->sections; asect; asect = asect->next) |
4170 | { | |
d1bcae83 L |
4171 | asymbol *sym = asect->symbol; |
4172 | /* Don't include ignored section symbols. */ | |
4173 | if (!ignore_section_sym (abfd, sym) | |
4174 | && sect_syms[asect->index] == NULL) | |
252b5132 | 4175 | { |
079e9a2f | 4176 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4177 | num_locals++; |
4178 | else | |
4179 | num_globals++; | |
252b5132 RH |
4180 | } |
4181 | } | |
4182 | ||
4183 | /* Now sort the symbols so the local symbols are first. */ | |
446f7ed5 AM |
4184 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
4185 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 | 4186 | if (new_syms == NULL) |
0a1b45a2 | 4187 | return false; |
252b5132 RH |
4188 | |
4189 | for (idx = 0; idx < symcount; idx++) | |
4190 | { | |
4191 | asymbol *sym = syms[idx]; | |
dc810e39 | 4192 | unsigned int i; |
252b5132 | 4193 | |
2633a79c AM |
4194 | if (sym_is_global (abfd, sym)) |
4195 | i = num_locals + num_globals2++; | |
d1bcae83 | 4196 | /* Don't include ignored section symbols. */ |
2633a79c | 4197 | else if (!ignore_section_sym (abfd, sym)) |
252b5132 RH |
4198 | i = num_locals2++; |
4199 | else | |
2633a79c | 4200 | continue; |
252b5132 RH |
4201 | new_syms[i] = sym; |
4202 | sym->udata.i = i + 1; | |
4203 | } | |
4204 | for (asect = abfd->sections; asect; asect = asect->next) | |
4205 | { | |
d1bcae83 L |
4206 | asymbol *sym = asect->symbol; |
4207 | if (!ignore_section_sym (abfd, sym) | |
4208 | && sect_syms[asect->index] == NULL) | |
252b5132 | 4209 | { |
dc810e39 | 4210 | unsigned int i; |
252b5132 | 4211 | |
079e9a2f | 4212 | sect_syms[asect->index] = sym; |
252b5132 RH |
4213 | if (!sym_is_global (abfd, sym)) |
4214 | i = num_locals2++; | |
4215 | else | |
4216 | i = num_locals + num_globals2++; | |
4217 | new_syms[i] = sym; | |
4218 | sym->udata.i = i + 1; | |
4219 | } | |
4220 | } | |
4221 | ||
4222 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4223 | ||
12bd6957 | 4224 | *pnum_locals = num_locals; |
0a1b45a2 | 4225 | return true; |
252b5132 RH |
4226 | } |
4227 | ||
4228 | /* Align to the maximum file alignment that could be required for any | |
4229 | ELF data structure. */ | |
4230 | ||
268b6b39 | 4231 | static inline file_ptr |
217aa764 | 4232 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4233 | { |
4234 | return (off + align - 1) & ~(align - 1); | |
4235 | } | |
4236 | ||
4237 | /* Assign a file position to a section, optionally aligning to the | |
4238 | required section alignment. */ | |
4239 | ||
217aa764 AM |
4240 | file_ptr |
4241 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4242 | file_ptr offset, | |
0a1b45a2 | 4243 | bool align) |
252b5132 | 4244 | { |
72de5009 AM |
4245 | if (align && i_shdrp->sh_addralign > 1) |
4246 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4247 | i_shdrp->sh_offset = offset; |
4248 | if (i_shdrp->bfd_section != NULL) | |
4249 | i_shdrp->bfd_section->filepos = offset; | |
4250 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4251 | offset += i_shdrp->sh_size; | |
4252 | return offset; | |
4253 | } | |
4254 | ||
4255 | /* Compute the file positions we are going to put the sections at, and | |
4256 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4257 | is not NULL, this is being called by the ELF backend linker. */ | |
4258 | ||
0a1b45a2 | 4259 | bool |
217aa764 AM |
4260 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4261 | struct bfd_link_info *link_info) | |
252b5132 | 4262 | { |
9c5bfbb7 | 4263 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4264 | struct fake_section_arg fsargs; |
0a1b45a2 | 4265 | bool failed; |
ef10c3ac | 4266 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4267 | Elf_Internal_Shdr *shstrtab_hdr; |
0a1b45a2 | 4268 | bool need_symtab; |
252b5132 RH |
4269 | |
4270 | if (abfd->output_has_begun) | |
0a1b45a2 | 4271 | return true; |
252b5132 RH |
4272 | |
4273 | /* Do any elf backend specific processing first. */ | |
4274 | if (bed->elf_backend_begin_write_processing) | |
4275 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4276 | ||
ed7e9d0b | 4277 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
0a1b45a2 | 4278 | return false; |
252b5132 | 4279 | |
0a1b45a2 | 4280 | fsargs.failed = false; |
d4730f92 BS |
4281 | fsargs.link_info = link_info; |
4282 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4283 | if (fsargs.failed) | |
0a1b45a2 | 4284 | return false; |
252b5132 | 4285 | |
da9f89d4 | 4286 | if (!assign_section_numbers (abfd, link_info)) |
0a1b45a2 | 4287 | return false; |
252b5132 RH |
4288 | |
4289 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4290 | need_symtab = (link_info == NULL |
4291 | && (bfd_get_symcount (abfd) > 0 | |
4292 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4293 | == HAS_RELOC))); | |
4294 | if (need_symtab) | |
252b5132 RH |
4295 | { |
4296 | /* Non-zero if doing a relocatable link. */ | |
4297 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4298 | ||
3d16b64e | 4299 | if (! swap_out_syms (abfd, &strtab, relocatable_p, link_info)) |
0a1b45a2 | 4300 | return false; |
252b5132 RH |
4301 | } |
4302 | ||
0a1b45a2 | 4303 | failed = false; |
1126897b | 4304 | if (link_info == NULL) |
dbb410c3 | 4305 | { |
1126897b | 4306 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4307 | if (failed) |
0a1b45a2 | 4308 | return false; |
dbb410c3 AM |
4309 | } |
4310 | ||
252b5132 | 4311 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4312 | /* sh_name was set in init_file_header. */ |
252b5132 | 4313 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4314 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4315 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4316 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4317 | shstrtab_hdr->sh_entsize = 0; |
4318 | shstrtab_hdr->sh_link = 0; | |
4319 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4320 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4321 | shstrtab_hdr->sh_addralign = 1; |
4322 | ||
c84fca4d | 4323 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
0a1b45a2 | 4324 | return false; |
252b5132 | 4325 | |
3516e984 | 4326 | if (need_symtab) |
252b5132 RH |
4327 | { |
4328 | file_ptr off; | |
4329 | Elf_Internal_Shdr *hdr; | |
4330 | ||
12bd6957 | 4331 | off = elf_next_file_pos (abfd); |
252b5132 | 4332 | |
6a40cf0c | 4333 | hdr = & elf_symtab_hdr (abfd); |
0a1b45a2 | 4334 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 4335 | |
6a40cf0c NC |
4336 | if (elf_symtab_shndx_list (abfd) != NULL) |
4337 | { | |
4338 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4339 | if (hdr->sh_size != 0) | |
0a1b45a2 | 4340 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
6a40cf0c NC |
4341 | /* FIXME: What about other symtab_shndx sections in the list ? */ |
4342 | } | |
9ad5cbcf | 4343 | |
252b5132 | 4344 | hdr = &elf_tdata (abfd)->strtab_hdr; |
0a1b45a2 | 4345 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 4346 | |
12bd6957 | 4347 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4348 | |
4349 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4350 | out. */ |
252b5132 | 4351 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4352 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
0a1b45a2 | 4353 | return false; |
ef10c3ac | 4354 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4355 | } |
4356 | ||
0a1b45a2 | 4357 | abfd->output_has_begun = true; |
252b5132 | 4358 | |
0a1b45a2 | 4359 | return true; |
252b5132 RH |
4360 | } |
4361 | ||
8ded5a0f AM |
4362 | /* Make an initial estimate of the size of the program header. If we |
4363 | get the number wrong here, we'll redo section placement. */ | |
4364 | ||
4365 | static bfd_size_type | |
4366 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4367 | { | |
4368 | size_t segs; | |
4369 | asection *s; | |
2b05f1b7 | 4370 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4371 | |
4372 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4373 | and one for data. */ | |
4374 | segs = 2; | |
4375 | ||
4376 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4377 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4378 | { |
4379 | /* If we have a loadable interpreter section, we need a | |
4380 | PT_INTERP segment. In this case, assume we also need a | |
4381 | PT_PHDR segment, although that may not be true for all | |
4382 | targets. */ | |
e9a38e0f | 4383 | segs += 2; |
8ded5a0f AM |
4384 | } |
4385 | ||
4386 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4387 | { | |
4388 | /* We need a PT_DYNAMIC segment. */ | |
4389 | ++segs; | |
f210dcff | 4390 | } |
08a40648 | 4391 | |
ceae84aa | 4392 | if (info != NULL && info->relro) |
f210dcff L |
4393 | { |
4394 | /* We need a PT_GNU_RELRO segment. */ | |
4395 | ++segs; | |
8ded5a0f AM |
4396 | } |
4397 | ||
12bd6957 | 4398 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4399 | { |
4400 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4401 | ++segs; | |
4402 | } | |
4403 | ||
12bd6957 | 4404 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4405 | { |
2b05f1b7 L |
4406 | /* We need a PT_GNU_STACK segment. */ |
4407 | ++segs; | |
4408 | } | |
94b11780 | 4409 | |
0a59decb L |
4410 | s = bfd_get_section_by_name (abfd, |
4411 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4412 | if (s != NULL && s->size != 0) | |
4413 | { | |
4414 | /* We need a PT_GNU_PROPERTY segment. */ | |
4415 | ++segs; | |
4416 | } | |
4417 | ||
2b05f1b7 L |
4418 | for (s = abfd->sections; s != NULL; s = s->next) |
4419 | { | |
8ded5a0f | 4420 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4421 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4422 | { |
23e463ed | 4423 | unsigned int alignment_power; |
8ded5a0f AM |
4424 | /* We need a PT_NOTE segment. */ |
4425 | ++segs; | |
23e463ed L |
4426 | /* Try to create just one PT_NOTE segment for all adjacent |
4427 | loadable SHT_NOTE sections. gABI requires that within a | |
4428 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4429 | each note should have the same alignment. So we check | |
4430 | whether the sections are correctly aligned. */ | |
4431 | alignment_power = s->alignment_power; | |
4432 | while (s->next != NULL | |
4433 | && s->next->alignment_power == alignment_power | |
4434 | && (s->next->flags & SEC_LOAD) != 0 | |
4435 | && elf_section_type (s->next) == SHT_NOTE) | |
4436 | s = s->next; | |
8ded5a0f AM |
4437 | } |
4438 | } | |
4439 | ||
4440 | for (s = abfd->sections; s != NULL; s = s->next) | |
4441 | { | |
4442 | if (s->flags & SEC_THREAD_LOCAL) | |
4443 | { | |
4444 | /* We need a PT_TLS segment. */ | |
4445 | ++segs; | |
4446 | break; | |
4447 | } | |
4448 | } | |
4449 | ||
2b05f1b7 | 4450 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4451 | |
df3a023b AM |
4452 | if ((abfd->flags & D_PAGED) != 0 |
4453 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4454 | { | |
4455 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
c410035d AM |
4456 | bfd_vma commonpagesize; |
4457 | unsigned int page_align_power; | |
4458 | ||
4459 | if (info != NULL) | |
4460 | commonpagesize = info->commonpagesize; | |
4461 | else | |
4462 | commonpagesize = bed->commonpagesize; | |
4463 | page_align_power = bfd_log2 (commonpagesize); | |
df3a023b AM |
4464 | for (s = abfd->sections; s != NULL; s = s->next) |
4465 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4466 | { | |
4467 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4468 | { | |
4469 | _bfd_error_handler | |
4470 | /* xgettext:c-format */ | |
4471 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4472 | "sh_info field: %d"), | |
4473 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4474 | continue; | |
4475 | } | |
4476 | /* Align mbind section to page size. */ | |
4477 | if (s->alignment_power < page_align_power) | |
4478 | s->alignment_power = page_align_power; | |
4479 | segs ++; | |
4480 | } | |
4481 | } | |
4482 | ||
4483 | /* Let the backend count up any program headers it might need. */ | |
4484 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4485 | { |
4486 | int a; | |
4487 | ||
4488 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4489 | if (a == -1) | |
4490 | abort (); | |
4491 | segs += a; | |
4492 | } | |
4493 | ||
4494 | return segs * bed->s->sizeof_phdr; | |
4495 | } | |
4496 | ||
2ea37f1c NC |
4497 | /* Find the segment that contains the output_section of section. */ |
4498 | ||
4499 | Elf_Internal_Phdr * | |
4500 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4501 | { | |
4502 | struct elf_segment_map *m; | |
4503 | Elf_Internal_Phdr *p; | |
4504 | ||
12bd6957 | 4505 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4506 | m != NULL; |
4507 | m = m->next, p++) | |
4508 | { | |
4509 | int i; | |
4510 | ||
4511 | for (i = m->count - 1; i >= 0; i--) | |
4512 | if (m->sections[i] == section) | |
4513 | return p; | |
4514 | } | |
4515 | ||
4516 | return NULL; | |
4517 | } | |
4518 | ||
252b5132 RH |
4519 | /* Create a mapping from a set of sections to a program segment. */ |
4520 | ||
217aa764 AM |
4521 | static struct elf_segment_map * |
4522 | make_mapping (bfd *abfd, | |
4523 | asection **sections, | |
4524 | unsigned int from, | |
4525 | unsigned int to, | |
0a1b45a2 | 4526 | bool phdr) |
252b5132 RH |
4527 | { |
4528 | struct elf_segment_map *m; | |
4529 | unsigned int i; | |
4530 | asection **hdrpp; | |
986f0783 | 4531 | size_t amt; |
252b5132 | 4532 | |
00bee008 AM |
4533 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4534 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4535 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4536 | if (m == NULL) |
4537 | return NULL; | |
4538 | m->next = NULL; | |
4539 | m->p_type = PT_LOAD; | |
4540 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4541 | m->sections[i - from] = *hdrpp; | |
4542 | m->count = to - from; | |
4543 | ||
4544 | if (from == 0 && phdr) | |
4545 | { | |
4546 | /* Include the headers in the first PT_LOAD segment. */ | |
4547 | m->includes_filehdr = 1; | |
4548 | m->includes_phdrs = 1; | |
4549 | } | |
4550 | ||
4551 | return m; | |
4552 | } | |
4553 | ||
229fcec5 MM |
4554 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4555 | on failure. */ | |
4556 | ||
4557 | struct elf_segment_map * | |
4558 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4559 | { | |
4560 | struct elf_segment_map *m; | |
4561 | ||
a50b1753 | 4562 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4563 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4564 | if (m == NULL) |
4565 | return NULL; | |
4566 | m->next = NULL; | |
4567 | m->p_type = PT_DYNAMIC; | |
4568 | m->count = 1; | |
4569 | m->sections[0] = dynsec; | |
08a40648 | 4570 | |
229fcec5 MM |
4571 | return m; |
4572 | } | |
4573 | ||
8ded5a0f | 4574 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4575 | |
0a1b45a2 | 4576 | static bool |
3dea8fca AM |
4577 | elf_modify_segment_map (bfd *abfd, |
4578 | struct bfd_link_info *info, | |
0a1b45a2 | 4579 | bool remove_empty_load) |
252b5132 | 4580 | { |
252e386e | 4581 | struct elf_segment_map **m; |
8ded5a0f | 4582 | const struct elf_backend_data *bed; |
252b5132 | 4583 | |
8ded5a0f AM |
4584 | /* The placement algorithm assumes that non allocated sections are |
4585 | not in PT_LOAD segments. We ensure this here by removing such | |
4586 | sections from the segment map. We also remove excluded | |
252e386e AM |
4587 | sections. Finally, any PT_LOAD segment without sections is |
4588 | removed. */ | |
12bd6957 | 4589 | m = &elf_seg_map (abfd); |
252e386e | 4590 | while (*m) |
8ded5a0f AM |
4591 | { |
4592 | unsigned int i, new_count; | |
252b5132 | 4593 | |
252e386e | 4594 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4595 | { |
252e386e AM |
4596 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4597 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4598 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4599 | { |
252e386e AM |
4600 | (*m)->sections[new_count] = (*m)->sections[i]; |
4601 | new_count++; | |
8ded5a0f AM |
4602 | } |
4603 | } | |
252e386e | 4604 | (*m)->count = new_count; |
252b5132 | 4605 | |
1a9ccd70 NC |
4606 | if (remove_empty_load |
4607 | && (*m)->p_type == PT_LOAD | |
4608 | && (*m)->count == 0 | |
4609 | && !(*m)->includes_phdrs) | |
252e386e AM |
4610 | *m = (*m)->next; |
4611 | else | |
4612 | m = &(*m)->next; | |
8ded5a0f | 4613 | } |
252b5132 | 4614 | |
8ded5a0f AM |
4615 | bed = get_elf_backend_data (abfd); |
4616 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4617 | { |
252e386e | 4618 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
0a1b45a2 | 4619 | return false; |
252b5132 | 4620 | } |
252b5132 | 4621 | |
0a1b45a2 | 4622 | return true; |
8ded5a0f | 4623 | } |
252b5132 | 4624 | |
dbc88fc1 AM |
4625 | #define IS_TBSS(s) \ |
4626 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4627 | ||
8ded5a0f | 4628 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4629 | |
0a1b45a2 | 4630 | bool |
8ded5a0f AM |
4631 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) |
4632 | { | |
4633 | unsigned int count; | |
4634 | struct elf_segment_map *m; | |
4635 | asection **sections = NULL; | |
4636 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
0a1b45a2 | 4637 | bool no_user_phdrs; |
252b5132 | 4638 | |
12bd6957 | 4639 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4640 | |
4641 | if (info != NULL) | |
4642 | info->user_phdrs = !no_user_phdrs; | |
4643 | ||
3dea8fca | 4644 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4645 | { |
8ded5a0f AM |
4646 | asection *s; |
4647 | unsigned int i; | |
4648 | struct elf_segment_map *mfirst; | |
4649 | struct elf_segment_map **pm; | |
4650 | asection *last_hdr; | |
4651 | bfd_vma last_size; | |
00bee008 | 4652 | unsigned int hdr_index; |
8ded5a0f AM |
4653 | bfd_vma maxpagesize; |
4654 | asection **hdrpp; | |
0a1b45a2 AM |
4655 | bool phdr_in_segment; |
4656 | bool writable; | |
4657 | bool executable; | |
446f7ed5 | 4658 | unsigned int tls_count = 0; |
8ded5a0f | 4659 | asection *first_tls = NULL; |
a91e1603 | 4660 | asection *first_mbind = NULL; |
8ded5a0f | 4661 | asection *dynsec, *eh_frame_hdr; |
446f7ed5 | 4662 | size_t amt; |
66631823 CE |
4663 | bfd_vma addr_mask, wrap_to = 0; /* Bytes. */ |
4664 | bfd_size_type phdr_size; /* Octets/bytes. */ | |
502794d4 | 4665 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 4666 | |
8ded5a0f | 4667 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4668 | |
446f7ed5 AM |
4669 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
4670 | sections = (asection **) bfd_malloc (amt); | |
8ded5a0f | 4671 | if (sections == NULL) |
252b5132 | 4672 | goto error_return; |
252b5132 | 4673 | |
8d06853e AM |
4674 | /* Calculate top address, avoiding undefined behaviour of shift |
4675 | left operator when shift count is equal to size of type | |
4676 | being shifted. */ | |
4677 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4678 | addr_mask = (addr_mask << 1) + 1; | |
4679 | ||
8ded5a0f AM |
4680 | i = 0; |
4681 | for (s = abfd->sections; s != NULL; s = s->next) | |
4682 | { | |
4683 | if ((s->flags & SEC_ALLOC) != 0) | |
4684 | { | |
48db3297 AM |
4685 | /* target_index is unused until bfd_elf_final_link |
4686 | starts output of section symbols. Use it to make | |
4687 | qsort stable. */ | |
4688 | s->target_index = i; | |
8ded5a0f AM |
4689 | sections[i] = s; |
4690 | ++i; | |
8d06853e | 4691 | /* A wrapping section potentially clashes with header. */ |
66631823 CE |
4692 | if (((s->lma + s->size / opb) & addr_mask) < (s->lma & addr_mask)) |
4693 | wrap_to = (s->lma + s->size / opb) & addr_mask; | |
8ded5a0f AM |
4694 | } |
4695 | } | |
4696 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4697 | count = i; | |
252b5132 | 4698 | |
8ded5a0f | 4699 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4700 | |
64029e93 AM |
4701 | phdr_size = elf_program_header_size (abfd); |
4702 | if (phdr_size == (bfd_size_type) -1) | |
4703 | phdr_size = get_program_header_size (abfd, info); | |
4704 | phdr_size += bed->s->sizeof_ehdr; | |
502794d4 CE |
4705 | /* phdr_size is compared to LMA values which are in bytes. */ |
4706 | phdr_size /= opb; | |
c410035d AM |
4707 | if (info != NULL) |
4708 | maxpagesize = info->maxpagesize; | |
4709 | else | |
4710 | maxpagesize = bed->maxpagesize; | |
64029e93 AM |
4711 | if (maxpagesize == 0) |
4712 | maxpagesize = 1; | |
4713 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4714 | if (count != 0 | |
4715 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4716 | >= (phdr_size & (maxpagesize - 1)))) | |
4717 | /* For compatibility with old scripts that may not be using | |
4718 | SIZEOF_HEADERS, add headers when it looks like space has | |
4719 | been left for them. */ | |
0a1b45a2 | 4720 | phdr_in_segment = true; |
252b5132 | 4721 | |
64029e93 | 4722 | /* Build the mapping. */ |
8ded5a0f AM |
4723 | mfirst = NULL; |
4724 | pm = &mfirst; | |
252b5132 | 4725 | |
8ded5a0f AM |
4726 | /* If we have a .interp section, then create a PT_PHDR segment for |
4727 | the program headers and a PT_INTERP segment for the .interp | |
4728 | section. */ | |
4729 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4730 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4731 | { |
4732 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4733 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4734 | if (m == NULL) |
4735 | goto error_return; | |
4736 | m->next = NULL; | |
4737 | m->p_type = PT_PHDR; | |
f882209d | 4738 | m->p_flags = PF_R; |
8ded5a0f AM |
4739 | m->p_flags_valid = 1; |
4740 | m->includes_phdrs = 1; | |
0a1b45a2 | 4741 | phdr_in_segment = true; |
8ded5a0f AM |
4742 | *pm = m; |
4743 | pm = &m->next; | |
252b5132 | 4744 | |
8ded5a0f | 4745 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4746 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4747 | if (m == NULL) |
4748 | goto error_return; | |
4749 | m->next = NULL; | |
4750 | m->p_type = PT_INTERP; | |
4751 | m->count = 1; | |
4752 | m->sections[0] = s; | |
4753 | ||
4754 | *pm = m; | |
4755 | pm = &m->next; | |
252b5132 | 4756 | } |
8ded5a0f AM |
4757 | |
4758 | /* Look through the sections. We put sections in the same program | |
4759 | segment when the start of the second section can be placed within | |
4760 | a few bytes of the end of the first section. */ | |
4761 | last_hdr = NULL; | |
4762 | last_size = 0; | |
00bee008 | 4763 | hdr_index = 0; |
0a1b45a2 AM |
4764 | writable = false; |
4765 | executable = false; | |
8ded5a0f AM |
4766 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4767 | if (dynsec != NULL | |
4768 | && (dynsec->flags & SEC_LOAD) == 0) | |
4769 | dynsec = NULL; | |
4770 | ||
64029e93 | 4771 | if ((abfd->flags & D_PAGED) == 0) |
0a1b45a2 | 4772 | phdr_in_segment = false; |
64029e93 | 4773 | |
8ded5a0f AM |
4774 | /* Deal with -Ttext or something similar such that the first section |
4775 | is not adjacent to the program headers. This is an | |
4776 | approximation, since at this point we don't know exactly how many | |
4777 | program headers we will need. */ | |
64029e93 | 4778 | if (phdr_in_segment && count > 0) |
252b5132 | 4779 | { |
66631823 | 4780 | bfd_vma phdr_lma; /* Bytes. */ |
0a1b45a2 | 4781 | bool separate_phdr = false; |
64029e93 AM |
4782 | |
4783 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4784 | if (info != NULL | |
4785 | && info->separate_code | |
4786 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4787 | { |
64029e93 AM |
4788 | /* If data sections should be separate from code and |
4789 | thus not executable, and the first section is | |
4790 | executable then put the file and program headers in | |
4791 | their own PT_LOAD. */ | |
0a1b45a2 | 4792 | separate_phdr = true; |
64029e93 AM |
4793 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) |
4794 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4795 | { | |
4796 | /* The file and program headers are currently on the | |
4797 | same page as the first section. Put them on the | |
4798 | previous page if we can. */ | |
4799 | if (phdr_lma >= maxpagesize) | |
4800 | phdr_lma -= maxpagesize; | |
4801 | else | |
0a1b45a2 | 4802 | separate_phdr = false; |
64029e93 AM |
4803 | } |
4804 | } | |
4805 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4806 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4807 | /* If file and program headers would be placed at the end | |
4808 | of memory then it's probably better to omit them. */ | |
0a1b45a2 | 4809 | phdr_in_segment = false; |
64029e93 AM |
4810 | else if (phdr_lma < wrap_to) |
4811 | /* If a section wraps around to where we'll be placing | |
4812 | file and program headers, then the headers will be | |
4813 | overwritten. */ | |
0a1b45a2 | 4814 | phdr_in_segment = false; |
64029e93 AM |
4815 | else if (separate_phdr) |
4816 | { | |
4817 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4818 | if (m == NULL) | |
4819 | goto error_return; | |
66631823 | 4820 | m->p_paddr = phdr_lma * opb; |
64029e93 AM |
4821 | m->p_vaddr_offset |
4822 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4823 | m->p_paddr_valid = 1; | |
4824 | *pm = m; | |
4825 | pm = &m->next; | |
0a1b45a2 | 4826 | phdr_in_segment = false; |
1a9ccd70 | 4827 | } |
252b5132 RH |
4828 | } |
4829 | ||
8ded5a0f | 4830 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4831 | { |
8ded5a0f | 4832 | asection *hdr; |
0a1b45a2 | 4833 | bool new_segment; |
8ded5a0f AM |
4834 | |
4835 | hdr = *hdrpp; | |
4836 | ||
4837 | /* See if this section and the last one will fit in the same | |
4838 | segment. */ | |
4839 | ||
4840 | if (last_hdr == NULL) | |
4841 | { | |
4842 | /* If we don't have a segment yet, then we don't need a new | |
4843 | one (we build the last one after this loop). */ | |
0a1b45a2 | 4844 | new_segment = false; |
8ded5a0f AM |
4845 | } |
4846 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4847 | { | |
4848 | /* If this section has a different relation between the | |
4849 | virtual address and the load address, then we need a new | |
4850 | segment. */ | |
0a1b45a2 | 4851 | new_segment = true; |
8ded5a0f | 4852 | } |
b5599592 AM |
4853 | else if (hdr->lma < last_hdr->lma + last_size |
4854 | || last_hdr->lma + last_size < last_hdr->lma) | |
4855 | { | |
4856 | /* If this section has a load address that makes it overlap | |
4857 | the previous section, then we need a new segment. */ | |
0a1b45a2 | 4858 | new_segment = true; |
b5599592 | 4859 | } |
76cb3a89 AM |
4860 | else if ((abfd->flags & D_PAGED) != 0 |
4861 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4862 | == (hdr->lma & -maxpagesize))) | |
4863 | { | |
4864 | /* If we are demand paged then we can't map two disk | |
4865 | pages onto the same memory page. */ | |
0a1b45a2 | 4866 | new_segment = false; |
76cb3a89 | 4867 | } |
39948a60 NC |
4868 | /* In the next test we have to be careful when last_hdr->lma is close |
4869 | to the end of the address space. If the aligned address wraps | |
4870 | around to the start of the address space, then there are no more | |
4871 | pages left in memory and it is OK to assume that the current | |
4872 | section can be included in the current segment. */ | |
76cb3a89 AM |
4873 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4874 | + maxpagesize > last_hdr->lma) | |
4875 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4876 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4877 | { |
4878 | /* If putting this section in this segment would force us to | |
4879 | skip a page in the segment, then we need a new segment. */ | |
0a1b45a2 | 4880 | new_segment = true; |
8ded5a0f AM |
4881 | } |
4882 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4883 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4884 | { |
e5654c0f AM |
4885 | /* We don't want to put a loaded section after a |
4886 | nonloaded (ie. bss style) section in the same segment | |
4887 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4888 | Consider .tbss sections as loaded for this purpose. */ |
0a1b45a2 | 4889 | new_segment = true; |
8ded5a0f AM |
4890 | } |
4891 | else if ((abfd->flags & D_PAGED) == 0) | |
4892 | { | |
4893 | /* If the file is not demand paged, which means that we | |
4894 | don't require the sections to be correctly aligned in the | |
4895 | file, then there is no other reason for a new segment. */ | |
0a1b45a2 | 4896 | new_segment = false; |
8ded5a0f | 4897 | } |
2888249f L |
4898 | else if (info != NULL |
4899 | && info->separate_code | |
4900 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4901 | { | |
0a1b45a2 | 4902 | new_segment = true; |
2888249f | 4903 | } |
8ded5a0f | 4904 | else if (! writable |
76cb3a89 | 4905 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4906 | { |
4907 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4908 | segment. */ |
0a1b45a2 | 4909 | new_segment = true; |
8ded5a0f AM |
4910 | } |
4911 | else | |
4912 | { | |
4913 | /* Otherwise, we can use the same segment. */ | |
0a1b45a2 | 4914 | new_segment = false; |
8ded5a0f AM |
4915 | } |
4916 | ||
2889e75b | 4917 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4918 | if (last_hdr != NULL |
4919 | && info != NULL | |
4920 | && info->callbacks->override_segment_assignment != NULL) | |
4921 | new_segment | |
4922 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4923 | last_hdr, | |
4924 | new_segment); | |
2889e75b | 4925 | |
8ded5a0f AM |
4926 | if (! new_segment) |
4927 | { | |
4928 | if ((hdr->flags & SEC_READONLY) == 0) | |
0a1b45a2 | 4929 | writable = true; |
2888249f | 4930 | if ((hdr->flags & SEC_CODE) != 0) |
0a1b45a2 | 4931 | executable = true; |
8ded5a0f AM |
4932 | last_hdr = hdr; |
4933 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4934 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
8ded5a0f AM |
4935 | continue; |
4936 | } | |
4937 | ||
4938 | /* We need a new program segment. We must create a new program | |
00bee008 | 4939 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4940 | |
00bee008 | 4941 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4942 | if (m == NULL) |
4943 | goto error_return; | |
4944 | ||
4945 | *pm = m; | |
4946 | pm = &m->next; | |
4947 | ||
252b5132 | 4948 | if ((hdr->flags & SEC_READONLY) == 0) |
0a1b45a2 | 4949 | writable = true; |
8ded5a0f | 4950 | else |
0a1b45a2 | 4951 | writable = false; |
8ded5a0f | 4952 | |
2888249f | 4953 | if ((hdr->flags & SEC_CODE) == 0) |
0a1b45a2 | 4954 | executable = false; |
2888249f | 4955 | else |
0a1b45a2 | 4956 | executable = true; |
2888249f | 4957 | |
baaff79e JJ |
4958 | last_hdr = hdr; |
4959 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4960 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
00bee008 | 4961 | hdr_index = i; |
0a1b45a2 | 4962 | phdr_in_segment = false; |
252b5132 RH |
4963 | } |
4964 | ||
86b2281f AM |
4965 | /* Create a final PT_LOAD program segment, but not if it's just |
4966 | for .tbss. */ | |
4967 | if (last_hdr != NULL | |
00bee008 | 4968 | && (i - hdr_index != 1 |
dbc88fc1 | 4969 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4970 | { |
00bee008 | 4971 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4972 | if (m == NULL) |
4973 | goto error_return; | |
252b5132 | 4974 | |
8ded5a0f AM |
4975 | *pm = m; |
4976 | pm = &m->next; | |
4977 | } | |
252b5132 | 4978 | |
8ded5a0f AM |
4979 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4980 | if (dynsec != NULL) | |
4981 | { | |
4982 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4983 | if (m == NULL) | |
4984 | goto error_return; | |
4985 | *pm = m; | |
4986 | pm = &m->next; | |
4987 | } | |
252b5132 | 4988 | |
23e463ed | 4989 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
4990 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
4991 | because if we link together nonloadable .note sections and | |
4992 | loadable .note sections, we will generate two .note sections | |
23e463ed | 4993 | in the output file. */ |
8ded5a0f AM |
4994 | for (s = abfd->sections; s != NULL; s = s->next) |
4995 | { | |
4996 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 4997 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4998 | { |
1c5265b5 | 4999 | asection *s2; |
23e463ed | 5000 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5001 | |
5002 | count = 1; | |
23e463ed L |
5003 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5004 | { | |
5005 | if (s2->next->alignment_power == alignment_power | |
5006 | && (s2->next->flags & SEC_LOAD) != 0 | |
5007 | && elf_section_type (s2->next) == SHT_NOTE | |
66631823 | 5008 | && align_power (s2->lma + s2->size / opb, |
23e463ed L |
5009 | alignment_power) |
5010 | == s2->next->lma) | |
5011 | count++; | |
5012 | else | |
5013 | break; | |
5014 | } | |
00bee008 AM |
5015 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5016 | amt += count * sizeof (asection *); | |
a50b1753 | 5017 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5018 | if (m == NULL) |
5019 | goto error_return; | |
5020 | m->next = NULL; | |
5021 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5022 | m->count = count; |
5023 | while (count > 1) | |
5024 | { | |
5025 | m->sections[m->count - count--] = s; | |
5026 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5027 | s = s->next; | |
5028 | } | |
5029 | m->sections[m->count - 1] = s; | |
5030 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5031 | *pm = m; |
5032 | pm = &m->next; | |
5033 | } | |
5034 | if (s->flags & SEC_THREAD_LOCAL) | |
5035 | { | |
5036 | if (! tls_count) | |
5037 | first_tls = s; | |
5038 | tls_count++; | |
5039 | } | |
a91e1603 L |
5040 | if (first_mbind == NULL |
5041 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5042 | first_mbind = s; | |
8ded5a0f | 5043 | } |
252b5132 | 5044 | |
8ded5a0f AM |
5045 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5046 | if (tls_count > 0) | |
5047 | { | |
00bee008 AM |
5048 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5049 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5050 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5051 | if (m == NULL) |
5052 | goto error_return; | |
5053 | m->next = NULL; | |
5054 | m->p_type = PT_TLS; | |
5055 | m->count = tls_count; | |
5056 | /* Mandated PF_R. */ | |
5057 | m->p_flags = PF_R; | |
5058 | m->p_flags_valid = 1; | |
d923cae0 | 5059 | s = first_tls; |
446f7ed5 | 5060 | for (i = 0; i < tls_count; ++i) |
8ded5a0f | 5061 | { |
d923cae0 L |
5062 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5063 | { | |
5064 | _bfd_error_handler | |
871b3ab2 | 5065 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5066 | s = first_tls; |
5067 | i = 0; | |
446f7ed5 | 5068 | while (i < tls_count) |
d923cae0 L |
5069 | { |
5070 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5071 | { | |
871b3ab2 | 5072 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5073 | i++; |
5074 | } | |
5075 | else | |
871b3ab2 | 5076 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5077 | s = s->next; |
5078 | } | |
5079 | bfd_set_error (bfd_error_bad_value); | |
5080 | goto error_return; | |
5081 | } | |
5082 | m->sections[i] = s; | |
5083 | s = s->next; | |
8ded5a0f | 5084 | } |
252b5132 | 5085 | |
8ded5a0f AM |
5086 | *pm = m; |
5087 | pm = &m->next; | |
5088 | } | |
252b5132 | 5089 | |
df3a023b AM |
5090 | if (first_mbind |
5091 | && (abfd->flags & D_PAGED) != 0 | |
5092 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5093 | for (s = first_mbind; s != NULL; s = s->next) |
5094 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5095 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5096 | { |
5097 | /* Mandated PF_R. */ | |
5098 | unsigned long p_flags = PF_R; | |
5099 | if ((s->flags & SEC_READONLY) == 0) | |
5100 | p_flags |= PF_W; | |
5101 | if ((s->flags & SEC_CODE) != 0) | |
5102 | p_flags |= PF_X; | |
5103 | ||
5104 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5105 | m = bfd_zalloc (abfd, amt); | |
5106 | if (m == NULL) | |
5107 | goto error_return; | |
5108 | m->next = NULL; | |
5109 | m->p_type = (PT_GNU_MBIND_LO | |
5110 | + elf_section_data (s)->this_hdr.sh_info); | |
5111 | m->count = 1; | |
5112 | m->p_flags_valid = 1; | |
5113 | m->sections[0] = s; | |
5114 | m->p_flags = p_flags; | |
5115 | ||
5116 | *pm = m; | |
5117 | pm = &m->next; | |
5118 | } | |
5119 | ||
0a59decb L |
5120 | s = bfd_get_section_by_name (abfd, |
5121 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5122 | if (s != NULL && s->size != 0) | |
5123 | { | |
5124 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5125 | m = bfd_zalloc (abfd, amt); | |
5126 | if (m == NULL) | |
5127 | goto error_return; | |
5128 | m->next = NULL; | |
5129 | m->p_type = PT_GNU_PROPERTY; | |
5130 | m->count = 1; | |
5131 | m->p_flags_valid = 1; | |
5132 | m->sections[0] = s; | |
5133 | m->p_flags = PF_R; | |
5134 | *pm = m; | |
5135 | pm = &m->next; | |
5136 | } | |
5137 | ||
8ded5a0f AM |
5138 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5139 | segment. */ | |
12bd6957 | 5140 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5141 | if (eh_frame_hdr != NULL |
5142 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5143 | { |
dc810e39 | 5144 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5145 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5146 | if (m == NULL) |
5147 | goto error_return; | |
5148 | m->next = NULL; | |
8ded5a0f | 5149 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5150 | m->count = 1; |
8ded5a0f | 5151 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5152 | |
5153 | *pm = m; | |
5154 | pm = &m->next; | |
5155 | } | |
13ae64f3 | 5156 | |
12bd6957 | 5157 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5158 | { |
8ded5a0f | 5159 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5160 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5161 | if (m == NULL) |
5162 | goto error_return; | |
5163 | m->next = NULL; | |
2b05f1b7 | 5164 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5165 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5166 | m->p_align = bed->stack_align; |
8ded5a0f | 5167 | m->p_flags_valid = 1; |
04c3a755 NS |
5168 | m->p_align_valid = m->p_align != 0; |
5169 | if (info->stacksize > 0) | |
5170 | { | |
5171 | m->p_size = info->stacksize; | |
5172 | m->p_size_valid = 1; | |
5173 | } | |
252b5132 | 5174 | |
8ded5a0f AM |
5175 | *pm = m; |
5176 | pm = &m->next; | |
5177 | } | |
65765700 | 5178 | |
ceae84aa | 5179 | if (info != NULL && info->relro) |
8ded5a0f | 5180 | { |
f210dcff L |
5181 | for (m = mfirst; m != NULL; m = m->next) |
5182 | { | |
3832a4d8 AM |
5183 | if (m->p_type == PT_LOAD |
5184 | && m->count != 0 | |
5185 | && m->sections[0]->vma >= info->relro_start | |
5186 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5187 | { |
3832a4d8 AM |
5188 | i = m->count; |
5189 | while (--i != (unsigned) -1) | |
ec2e748a NC |
5190 | { |
5191 | if (m->sections[i]->size > 0 | |
5192 | && (m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5193 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5194 | break; | |
5195 | } | |
3832a4d8 | 5196 | |
43a8475c | 5197 | if (i != (unsigned) -1) |
f210dcff L |
5198 | break; |
5199 | } | |
be01b344 | 5200 | } |
f210dcff L |
5201 | |
5202 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5203 | if (m != NULL) | |
5204 | { | |
5205 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5206 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5207 | if (m == NULL) |
5208 | goto error_return; | |
5209 | m->next = NULL; | |
5210 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5211 | *pm = m; |
5212 | pm = &m->next; | |
5213 | } | |
8ded5a0f | 5214 | } |
9ee5e499 | 5215 | |
8ded5a0f | 5216 | free (sections); |
12bd6957 | 5217 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5218 | } |
5219 | ||
3dea8fca | 5220 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
0a1b45a2 | 5221 | return false; |
8c37241b | 5222 | |
12bd6957 | 5223 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5224 | ++count; |
12bd6957 | 5225 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5226 | |
0a1b45a2 | 5227 | return true; |
252b5132 RH |
5228 | |
5229 | error_return: | |
c9594989 | 5230 | free (sections); |
0a1b45a2 | 5231 | return false; |
252b5132 RH |
5232 | } |
5233 | ||
5234 | /* Sort sections by address. */ | |
5235 | ||
5236 | static int | |
217aa764 | 5237 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5238 | { |
5239 | const asection *sec1 = *(const asection **) arg1; | |
5240 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5241 | bfd_size_type size1, size2; |
252b5132 RH |
5242 | |
5243 | /* Sort by LMA first, since this is the address used to | |
5244 | place the section into a segment. */ | |
5245 | if (sec1->lma < sec2->lma) | |
5246 | return -1; | |
5247 | else if (sec1->lma > sec2->lma) | |
5248 | return 1; | |
5249 | ||
5250 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5251 | the same, and this will do nothing. */ | |
5252 | if (sec1->vma < sec2->vma) | |
5253 | return -1; | |
5254 | else if (sec1->vma > sec2->vma) | |
5255 | return 1; | |
5256 | ||
5257 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5258 | ||
8d748d1d AM |
5259 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 \ |
5260 | && (x)->size != 0) | |
252b5132 RH |
5261 | |
5262 | if (TOEND (sec1)) | |
5263 | { | |
48db3297 | 5264 | if (!TOEND (sec2)) |
252b5132 RH |
5265 | return 1; |
5266 | } | |
00a7cdc5 | 5267 | else if (TOEND (sec2)) |
252b5132 RH |
5268 | return -1; |
5269 | ||
5270 | #undef TOEND | |
5271 | ||
00a7cdc5 NC |
5272 | /* Sort by size, to put zero sized sections |
5273 | before others at the same address. */ | |
252b5132 | 5274 | |
eea6121a AM |
5275 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5276 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5277 | |
5278 | if (size1 < size2) | |
252b5132 | 5279 | return -1; |
eecdbe52 | 5280 | if (size1 > size2) |
252b5132 RH |
5281 | return 1; |
5282 | ||
5283 | return sec1->target_index - sec2->target_index; | |
5284 | } | |
5285 | ||
30fe1832 AM |
5286 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5287 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5288 | ||
5289 | static int | |
5290 | elf_sort_segments (const void *arg1, const void *arg2) | |
5291 | { | |
5292 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5293 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5294 | ||
5295 | if (m1->p_type != m2->p_type) | |
5296 | { | |
5297 | if (m1->p_type == PT_NULL) | |
5298 | return 1; | |
5299 | if (m2->p_type == PT_NULL) | |
5300 | return -1; | |
5301 | return m1->p_type < m2->p_type ? -1 : 1; | |
5302 | } | |
5303 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5304 | return m1->includes_filehdr ? -1 : 1; | |
5305 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5306 | return m1->no_sort_lma ? -1 : 1; | |
5307 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5308 | { | |
4b3ecb3b | 5309 | bfd_vma lma1, lma2; /* Octets. */ |
30fe1832 AM |
5310 | lma1 = 0; |
5311 | if (m1->p_paddr_valid) | |
4b3ecb3b | 5312 | lma1 = m1->p_paddr; |
30fe1832 | 5313 | else if (m1->count != 0) |
4b3ecb3b AM |
5314 | { |
5315 | unsigned int opb = bfd_octets_per_byte (m1->sections[0]->owner, | |
5316 | m1->sections[0]); | |
5317 | lma1 = (m1->sections[0]->lma + m1->p_vaddr_offset) * opb; | |
5318 | } | |
30fe1832 AM |
5319 | lma2 = 0; |
5320 | if (m2->p_paddr_valid) | |
4b3ecb3b | 5321 | lma2 = m2->p_paddr; |
30fe1832 | 5322 | else if (m2->count != 0) |
4b3ecb3b AM |
5323 | { |
5324 | unsigned int opb = bfd_octets_per_byte (m2->sections[0]->owner, | |
5325 | m2->sections[0]); | |
5326 | lma2 = (m2->sections[0]->lma + m2->p_vaddr_offset) * opb; | |
5327 | } | |
30fe1832 AM |
5328 | if (lma1 != lma2) |
5329 | return lma1 < lma2 ? -1 : 1; | |
5330 | } | |
5331 | if (m1->idx != m2->idx) | |
5332 | return m1->idx < m2->idx ? -1 : 1; | |
5333 | return 0; | |
5334 | } | |
5335 | ||
340b6d91 AC |
5336 | /* Ian Lance Taylor writes: |
5337 | ||
5338 | We shouldn't be using % with a negative signed number. That's just | |
5339 | not good. We have to make sure either that the number is not | |
5340 | negative, or that the number has an unsigned type. When the types | |
5341 | are all the same size they wind up as unsigned. When file_ptr is a | |
5342 | larger signed type, the arithmetic winds up as signed long long, | |
5343 | which is wrong. | |
5344 | ||
5345 | What we're trying to say here is something like ``increase OFF by | |
5346 | the least amount that will cause it to be equal to the VMA modulo | |
5347 | the page size.'' */ | |
5348 | /* In other words, something like: | |
5349 | ||
5350 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5351 | off_offset = off % bed->maxpagesize; | |
5352 | if (vma_offset < off_offset) | |
5353 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5354 | else | |
5355 | adjustment = vma_offset - off_offset; | |
08a40648 | 5356 | |
de194d85 | 5357 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5358 | |
5359 | static file_ptr | |
5360 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5361 | { | |
dc9155b2 NC |
5362 | /* PR binutils/16199: Handle an alignment of zero. */ |
5363 | if (maxpagesize == 0) | |
5364 | maxpagesize = 1; | |
340b6d91 AC |
5365 | return ((vma - off) % maxpagesize); |
5366 | } | |
5367 | ||
6d33f217 L |
5368 | static void |
5369 | print_segment_map (const struct elf_segment_map *m) | |
5370 | { | |
5371 | unsigned int j; | |
5372 | const char *pt = get_segment_type (m->p_type); | |
5373 | char buf[32]; | |
5374 | ||
5375 | if (pt == NULL) | |
5376 | { | |
5377 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5378 | sprintf (buf, "LOPROC+%7.7x", | |
5379 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5380 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5381 | sprintf (buf, "LOOS+%7.7x", | |
5382 | (unsigned int) (m->p_type - PT_LOOS)); | |
5383 | else | |
5384 | snprintf (buf, sizeof (buf), "%8.8x", | |
5385 | (unsigned int) m->p_type); | |
5386 | pt = buf; | |
5387 | } | |
4a97a0e5 | 5388 | fflush (stdout); |
6d33f217 L |
5389 | fprintf (stderr, "%s:", pt); |
5390 | for (j = 0; j < m->count; j++) | |
5391 | fprintf (stderr, " %s", m->sections [j]->name); | |
5392 | putc ('\n',stderr); | |
4a97a0e5 | 5393 | fflush (stderr); |
6d33f217 L |
5394 | } |
5395 | ||
0a1b45a2 | 5396 | static bool |
32812159 AM |
5397 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) |
5398 | { | |
5399 | void *buf; | |
0a1b45a2 | 5400 | bool ret; |
32812159 AM |
5401 | |
5402 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
0a1b45a2 | 5403 | return false; |
32812159 AM |
5404 | buf = bfd_zmalloc (len); |
5405 | if (buf == NULL) | |
0a1b45a2 | 5406 | return false; |
32812159 AM |
5407 | ret = bfd_bwrite (buf, len, abfd) == len; |
5408 | free (buf); | |
5409 | return ret; | |
5410 | } | |
5411 | ||
252b5132 RH |
5412 | /* Assign file positions to the sections based on the mapping from |
5413 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5414 | the file header. */ |
252b5132 | 5415 | |
0a1b45a2 | 5416 | static bool |
f3520d2f AM |
5417 | assign_file_positions_for_load_sections (bfd *abfd, |
5418 | struct bfd_link_info *link_info) | |
252b5132 RH |
5419 | { |
5420 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5421 | struct elf_segment_map *m; |
30fe1832 | 5422 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5423 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5424 | Elf_Internal_Phdr *p; |
502794d4 | 5425 | file_ptr off; /* Octets. */ |
3f570048 | 5426 | bfd_size_type maxpagesize; |
30fe1832 | 5427 | unsigned int alloc, actual; |
0920dee7 | 5428 | unsigned int i, j; |
30fe1832 | 5429 | struct elf_segment_map **sorted_seg_map; |
502794d4 | 5430 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 5431 | |
e36284ab | 5432 | if (link_info == NULL |
ceae84aa | 5433 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
0a1b45a2 | 5434 | return false; |
252b5132 | 5435 | |
8ded5a0f | 5436 | alloc = 0; |
12bd6957 | 5437 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5438 | m->idx = alloc++; |
252b5132 | 5439 | |
82f2dbf7 NC |
5440 | if (alloc) |
5441 | { | |
5442 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5443 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5444 | } | |
5445 | else | |
5446 | { | |
5447 | /* PR binutils/12467. */ | |
5448 | elf_elfheader (abfd)->e_phoff = 0; | |
5449 | elf_elfheader (abfd)->e_phentsize = 0; | |
5450 | } | |
d324f6d6 | 5451 | |
8ded5a0f | 5452 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5453 | |
12bd6957 | 5454 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5455 | { |
5456 | actual = alloc; | |
5457 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5458 | } | |
8ded5a0f | 5459 | else |
30fe1832 AM |
5460 | { |
5461 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5462 | BFD_ASSERT (elf_program_header_size (abfd) | |
5463 | == actual * bed->s->sizeof_phdr); | |
5464 | BFD_ASSERT (actual >= alloc); | |
5465 | } | |
252b5132 RH |
5466 | |
5467 | if (alloc == 0) | |
f3520d2f | 5468 | { |
12bd6957 | 5469 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
0a1b45a2 | 5470 | return true; |
f3520d2f | 5471 | } |
252b5132 | 5472 | |
12bd6957 | 5473 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5474 | see assign_file_positions_except_relocs, so make sure we have |
5475 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5476 | The variable alloc contains the computed need, while |
5477 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5478 | layout. |
5479 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5480 | where the layout is forced to according to a larger size in the | |
5481 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5482 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5483 | + alloc * sizeof (*sorted_seg_map))); | |
5484 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5485 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5486 | if (phdrs == NULL) |
0a1b45a2 | 5487 | return false; |
252b5132 | 5488 | |
30fe1832 | 5489 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5490 | { |
30fe1832 | 5491 | sorted_seg_map[j] = m; |
252b5132 | 5492 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5493 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5494 | not be done to the PT_NOTE section of a corefile, which may |
5495 | contain several pseudo-sections artificially created by bfd. | |
5496 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5497 | if (m->count > 1 |
5498 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5499 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5500 | { |
5501 | for (i = 0; i < m->count; i++) | |
5502 | m->sections[i]->target_index = i; | |
5503 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5504 | elf_sort_sections); | |
5505 | } | |
30fe1832 AM |
5506 | } |
5507 | if (alloc > 1) | |
5508 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5509 | elf_sort_segments); | |
5510 | ||
5511 | maxpagesize = 1; | |
5512 | if ((abfd->flags & D_PAGED) != 0) | |
c410035d AM |
5513 | { |
5514 | if (link_info != NULL) | |
5515 | maxpagesize = link_info->maxpagesize; | |
5516 | else | |
5517 | maxpagesize = bed->maxpagesize; | |
5518 | } | |
30fe1832 AM |
5519 | |
5520 | /* Sections must map to file offsets past the ELF file header. */ | |
5521 | off = bed->s->sizeof_ehdr; | |
5522 | /* And if one of the PT_LOAD headers doesn't include the program | |
5523 | headers then we'll be mapping program headers in the usual | |
5524 | position after the ELF file header. */ | |
5525 | phdr_load_seg = NULL; | |
5526 | for (j = 0; j < alloc; j++) | |
5527 | { | |
5528 | m = sorted_seg_map[j]; | |
5529 | if (m->p_type != PT_LOAD) | |
5530 | break; | |
5531 | if (m->includes_phdrs) | |
5532 | { | |
5533 | phdr_load_seg = m; | |
5534 | break; | |
5535 | } | |
5536 | } | |
5537 | if (phdr_load_seg == NULL) | |
5538 | off += actual * bed->s->sizeof_phdr; | |
5539 | ||
5540 | for (j = 0; j < alloc; j++) | |
5541 | { | |
5542 | asection **secpp; | |
502794d4 | 5543 | bfd_vma off_adjust; /* Octets. */ |
0a1b45a2 | 5544 | bool no_contents; |
252b5132 | 5545 | |
b301b248 AM |
5546 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5547 | number of sections with contents contributing to both p_filesz | |
5548 | and p_memsz, followed by a number of sections with no contents | |
5549 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5550 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5551 | m = sorted_seg_map[j]; |
5552 | p = phdrs + m->idx; | |
252b5132 | 5553 | p->p_type = m->p_type; |
28a7f3e7 | 5554 | p->p_flags = m->p_flags; |
252b5132 | 5555 | |
3f570048 | 5556 | if (m->count == 0) |
502794d4 | 5557 | p->p_vaddr = m->p_vaddr_offset * opb; |
3f570048 | 5558 | else |
502794d4 | 5559 | p->p_vaddr = (m->sections[0]->vma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5560 | |
5561 | if (m->p_paddr_valid) | |
5562 | p->p_paddr = m->p_paddr; | |
5563 | else if (m->count == 0) | |
5564 | p->p_paddr = 0; | |
5565 | else | |
502794d4 | 5566 | p->p_paddr = (m->sections[0]->lma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5567 | |
5568 | if (p->p_type == PT_LOAD | |
5569 | && (abfd->flags & D_PAGED) != 0) | |
5570 | { | |
5571 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5572 | the maximum page size. When copying an executable with | |
5573 | objcopy, we set m->p_align from the input file. Use this | |
5574 | value for maxpagesize rather than bed->maxpagesize, which | |
5575 | may be different. Note that we use maxpagesize for PT_TLS | |
5576 | segment alignment later in this function, so we are relying | |
5577 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5578 | segment. */ | |
5579 | if (m->p_align_valid) | |
5580 | maxpagesize = m->p_align; | |
5581 | ||
5582 | p->p_align = maxpagesize; | |
5583 | } | |
3271a814 NS |
5584 | else if (m->p_align_valid) |
5585 | p->p_align = m->p_align; | |
e970b90a DJ |
5586 | else if (m->count == 0) |
5587 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5588 | |
5589 | if (m == phdr_load_seg) | |
5590 | { | |
5591 | if (!m->includes_filehdr) | |
5592 | p->p_offset = off; | |
5593 | off += actual * bed->s->sizeof_phdr; | |
5594 | } | |
3f570048 | 5595 | |
0a1b45a2 | 5596 | no_contents = false; |
bf988460 | 5597 | off_adjust = 0; |
252b5132 | 5598 | if (p->p_type == PT_LOAD |
b301b248 | 5599 | && m->count > 0) |
252b5132 | 5600 | { |
66631823 | 5601 | bfd_size_type align; /* Bytes. */ |
a49e53ed | 5602 | unsigned int align_power = 0; |
b301b248 | 5603 | |
3271a814 NS |
5604 | if (m->p_align_valid) |
5605 | align = p->p_align; | |
5606 | else | |
252b5132 | 5607 | { |
3271a814 NS |
5608 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5609 | { | |
5610 | unsigned int secalign; | |
08a40648 | 5611 | |
fd361982 | 5612 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5613 | if (secalign > align_power) |
5614 | align_power = secalign; | |
5615 | } | |
5616 | align = (bfd_size_type) 1 << align_power; | |
5617 | if (align < maxpagesize) | |
5618 | align = maxpagesize; | |
b301b248 | 5619 | } |
252b5132 | 5620 | |
02bf8d82 AM |
5621 | for (i = 0; i < m->count; i++) |
5622 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5623 | /* If we aren't making room for this section, then | |
5624 | it must be SHT_NOBITS regardless of what we've | |
5625 | set via struct bfd_elf_special_section. */ | |
5626 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5627 | ||
bf988460 | 5628 | /* Find out whether this segment contains any loadable |
aea274d3 | 5629 | sections. */ |
0a1b45a2 | 5630 | no_contents = true; |
aea274d3 AM |
5631 | for (i = 0; i < m->count; i++) |
5632 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5633 | { | |
0a1b45a2 | 5634 | no_contents = false; |
aea274d3 AM |
5635 | break; |
5636 | } | |
bf988460 | 5637 | |
66631823 | 5638 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align * opb); |
a8c75b76 AM |
5639 | |
5640 | /* Broken hardware and/or kernel require that files do not | |
5641 | map the same page with different permissions on some hppa | |
5642 | processors. */ | |
30fe1832 AM |
5643 | if (j != 0 |
5644 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5645 | && bed->no_page_alias |
5646 | && (off & (maxpagesize - 1)) != 0 | |
502794d4 CE |
5647 | && ((off & -maxpagesize) |
5648 | == ((off + off_adjust) & -maxpagesize))) | |
a8c75b76 | 5649 | off_adjust += maxpagesize; |
bf988460 AM |
5650 | off += off_adjust; |
5651 | if (no_contents) | |
5652 | { | |
5653 | /* We shouldn't need to align the segment on disk since | |
5654 | the segment doesn't need file space, but the gABI | |
5655 | arguably requires the alignment and glibc ld.so | |
5656 | checks it. So to comply with the alignment | |
5657 | requirement but not waste file space, we adjust | |
5658 | p_offset for just this segment. (OFF_ADJUST is | |
5659 | subtracted from OFF later.) This may put p_offset | |
5660 | past the end of file, but that shouldn't matter. */ | |
5661 | } | |
5662 | else | |
5663 | off_adjust = 0; | |
252b5132 | 5664 | } |
b1a6d0b1 NC |
5665 | /* Make sure the .dynamic section is the first section in the |
5666 | PT_DYNAMIC segment. */ | |
5667 | else if (p->p_type == PT_DYNAMIC | |
5668 | && m->count > 1 | |
5669 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5670 | { | |
5671 | _bfd_error_handler | |
871b3ab2 | 5672 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5673 | " is not the .dynamic section"), |
b301b248 | 5674 | abfd); |
b1a6d0b1 | 5675 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 5676 | return false; |
b1a6d0b1 | 5677 | } |
3f001e84 JK |
5678 | /* Set the note section type to SHT_NOTE. */ |
5679 | else if (p->p_type == PT_NOTE) | |
5680 | for (i = 0; i < m->count; i++) | |
5681 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5682 | |
252b5132 RH |
5683 | if (m->includes_filehdr) |
5684 | { | |
bf988460 | 5685 | if (!m->p_flags_valid) |
252b5132 | 5686 | p->p_flags |= PF_R; |
252b5132 RH |
5687 | p->p_filesz = bed->s->sizeof_ehdr; |
5688 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5689 | if (p->p_type == PT_LOAD) |
252b5132 | 5690 | { |
30fe1832 | 5691 | if (m->count > 0) |
252b5132 | 5692 | { |
30fe1832 AM |
5693 | if (p->p_vaddr < (bfd_vma) off |
5694 | || (!m->p_paddr_valid | |
5695 | && p->p_paddr < (bfd_vma) off)) | |
5696 | { | |
5697 | _bfd_error_handler | |
5698 | (_("%pB: not enough room for program headers," | |
5699 | " try linking with -N"), | |
5700 | abfd); | |
5701 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 5702 | return false; |
30fe1832 AM |
5703 | } |
5704 | p->p_vaddr -= off; | |
5705 | if (!m->p_paddr_valid) | |
5706 | p->p_paddr -= off; | |
252b5132 | 5707 | } |
30fe1832 AM |
5708 | } |
5709 | else if (sorted_seg_map[0]->includes_filehdr) | |
5710 | { | |
5711 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5712 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5713 | if (!m->p_paddr_valid) |
30fe1832 | 5714 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5715 | } |
252b5132 RH |
5716 | } |
5717 | ||
5718 | if (m->includes_phdrs) | |
5719 | { | |
bf988460 | 5720 | if (!m->p_flags_valid) |
252b5132 | 5721 | p->p_flags |= PF_R; |
30fe1832 AM |
5722 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5723 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5724 | if (!m->includes_filehdr) |
252b5132 | 5725 | { |
30fe1832 | 5726 | if (p->p_type == PT_LOAD) |
252b5132 | 5727 | { |
30fe1832 AM |
5728 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5729 | if (m->count > 0) | |
5730 | { | |
5731 | p->p_vaddr -= off - p->p_offset; | |
5732 | if (!m->p_paddr_valid) | |
5733 | p->p_paddr -= off - p->p_offset; | |
5734 | } | |
5735 | } | |
5736 | else if (phdr_load_seg != NULL) | |
5737 | { | |
5738 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
502794d4 | 5739 | bfd_vma phdr_off = 0; /* Octets. */ |
30fe1832 AM |
5740 | if (phdr_load_seg->includes_filehdr) |
5741 | phdr_off = bed->s->sizeof_ehdr; | |
5742 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5743 | if (!m->p_paddr_valid) |
30fe1832 AM |
5744 | p->p_paddr = phdr->p_paddr + phdr_off; |
5745 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5746 | } |
30fe1832 AM |
5747 | else |
5748 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5749 | } |
252b5132 RH |
5750 | } |
5751 | ||
5752 | if (p->p_type == PT_LOAD | |
5753 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5754 | { | |
bf988460 | 5755 | if (!m->includes_filehdr && !m->includes_phdrs) |
0bc3450e AM |
5756 | { |
5757 | p->p_offset = off; | |
5758 | if (no_contents) | |
67641dd3 AM |
5759 | { |
5760 | /* Put meaningless p_offset for PT_LOAD segments | |
5761 | without file contents somewhere within the first | |
5762 | page, in an attempt to not point past EOF. */ | |
5763 | bfd_size_type align = maxpagesize; | |
5764 | if (align < p->p_align) | |
5765 | align = p->p_align; | |
5766 | if (align < 1) | |
5767 | align = 1; | |
5768 | p->p_offset = off % align; | |
5769 | } | |
0bc3450e | 5770 | } |
252b5132 RH |
5771 | else |
5772 | { | |
502794d4 | 5773 | file_ptr adjust; /* Octets. */ |
252b5132 RH |
5774 | |
5775 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5776 | if (!no_contents) |
5777 | p->p_filesz += adjust; | |
252b5132 RH |
5778 | p->p_memsz += adjust; |
5779 | } | |
5780 | } | |
5781 | ||
1ea63fd2 AM |
5782 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5783 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5784 | core files, for sections in PT_NOTE segments. | |
5785 | assign_file_positions_for_non_load_sections will set filepos | |
5786 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5787 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5788 | { | |
5789 | asection *sec; | |
252b5132 | 5790 | bfd_size_type align; |
627b32bc | 5791 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5792 | |
5793 | sec = *secpp; | |
02bf8d82 | 5794 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5795 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5796 | |
88967714 AM |
5797 | if ((p->p_type == PT_LOAD |
5798 | || p->p_type == PT_TLS) | |
5799 | && (this_hdr->sh_type != SHT_NOBITS | |
5800 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5801 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5802 | || p->p_type == PT_TLS)))) | |
252b5132 | 5803 | { |
502794d4 CE |
5804 | bfd_vma p_start = p->p_paddr; /* Octets. */ |
5805 | bfd_vma p_end = p_start + p->p_memsz; /* Octets. */ | |
5806 | bfd_vma s_start = sec->lma * opb; /* Octets. */ | |
5807 | bfd_vma adjust = s_start - p_end; /* Octets. */ | |
252b5132 | 5808 | |
a2d1e028 L |
5809 | if (adjust != 0 |
5810 | && (s_start < p_end | |
5811 | || p_end < p_start)) | |
252b5132 | 5812 | { |
4eca0228 | 5813 | _bfd_error_handler |
695344c0 | 5814 | /* xgettext:c-format */ |
2dcf00ce | 5815 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
502794d4 CE |
5816 | abfd, sec, (uint64_t) s_start / opb, |
5817 | (uint64_t) p_end / opb); | |
88967714 | 5818 | adjust = 0; |
502794d4 | 5819 | sec->lma = p_end / opb; |
1cfb7d1e | 5820 | } |
3ac9b6c9 | 5821 | p->p_memsz += adjust; |
1cfb7d1e | 5822 | |
d16e3d2e | 5823 | if (p->p_type == PT_LOAD) |
88967714 | 5824 | { |
d16e3d2e | 5825 | if (this_hdr->sh_type != SHT_NOBITS) |
32812159 | 5826 | { |
d16e3d2e | 5827 | off_adjust = 0; |
30fe1832 AM |
5828 | if (p->p_filesz + adjust < p->p_memsz) |
5829 | { | |
5830 | /* We have a PROGBITS section following NOBITS ones. | |
5831 | Allocate file space for the NOBITS section(s) and | |
5832 | zero it. */ | |
5833 | adjust = p->p_memsz - p->p_filesz; | |
5834 | if (!write_zeros (abfd, off, adjust)) | |
0a1b45a2 | 5835 | return false; |
30fe1832 | 5836 | } |
d16e3d2e AM |
5837 | } |
5838 | /* We only adjust sh_offset in SHT_NOBITS sections | |
5839 | as would seem proper for their address when the | |
5840 | section is first in the segment. sh_offset | |
5841 | doesn't really have any significance for | |
5842 | SHT_NOBITS anyway, apart from a notional position | |
5843 | relative to other sections. Historically we | |
5844 | didn't bother with adjusting sh_offset and some | |
5845 | programs depend on it not being adjusted. See | |
5846 | pr12921 and pr25662. */ | |
5847 | if (this_hdr->sh_type != SHT_NOBITS || i == 0) | |
5848 | { | |
30fe1832 | 5849 | off += adjust; |
d16e3d2e AM |
5850 | if (this_hdr->sh_type == SHT_NOBITS) |
5851 | off_adjust += adjust; | |
32812159 | 5852 | } |
252b5132 | 5853 | } |
d16e3d2e AM |
5854 | if (this_hdr->sh_type != SHT_NOBITS) |
5855 | p->p_filesz += adjust; | |
252b5132 RH |
5856 | } |
5857 | ||
5858 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5859 | { | |
b301b248 AM |
5860 | /* The section at i == 0 is the one that actually contains |
5861 | everything. */ | |
4a938328 MS |
5862 | if (i == 0) |
5863 | { | |
627b32bc | 5864 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5865 | off += this_hdr->sh_size; |
5866 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5867 | p->p_memsz = 0; |
5868 | p->p_align = 1; | |
252b5132 | 5869 | } |
4a938328 | 5870 | else |
252b5132 | 5871 | { |
b301b248 | 5872 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5873 | sec->filepos = 0; |
eea6121a | 5874 | sec->size = 0; |
b301b248 AM |
5875 | sec->flags = 0; |
5876 | continue; | |
252b5132 | 5877 | } |
252b5132 RH |
5878 | } |
5879 | else | |
5880 | { | |
1e951488 | 5881 | if (p->p_type == PT_LOAD) |
b301b248 | 5882 | { |
1e951488 AM |
5883 | this_hdr->sh_offset = sec->filepos = off; |
5884 | if (this_hdr->sh_type != SHT_NOBITS) | |
5885 | off += this_hdr->sh_size; | |
5886 | } | |
5887 | else if (this_hdr->sh_type == SHT_NOBITS | |
5888 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5889 | && this_hdr->sh_offset == 0) | |
5890 | { | |
5891 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5892 | (See _bfd_elf_map_sections_to_segments "Create a | |
5893 | final PT_LOAD".) Set sh_offset to the value it | |
5894 | would have if we had created a zero p_filesz and | |
5895 | p_memsz PT_LOAD header for the section. This | |
5896 | also makes the PT_TLS header have the same | |
5897 | p_offset value. */ | |
5898 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5899 | off, align); | |
5900 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5901 | } |
252b5132 | 5902 | |
02bf8d82 | 5903 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5904 | { |
6a3cd2b4 | 5905 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5906 | /* A load section without SHF_ALLOC is something like |
5907 | a note section in a PT_NOTE segment. These take | |
5908 | file space but are not loaded into memory. */ | |
5909 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5910 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5911 | } |
6a3cd2b4 | 5912 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5913 | { |
6a3cd2b4 AM |
5914 | if (p->p_type == PT_TLS) |
5915 | p->p_memsz += this_hdr->sh_size; | |
5916 | ||
5917 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5918 | normal segments. */ | |
5919 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5920 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5921 | } |
5922 | ||
b10a8ae0 L |
5923 | if (align > p->p_align |
5924 | && !m->p_align_valid | |
5925 | && (p->p_type != PT_LOAD | |
5926 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5927 | p->p_align = align; |
5928 | } | |
5929 | ||
bf988460 | 5930 | if (!m->p_flags_valid) |
252b5132 RH |
5931 | { |
5932 | p->p_flags |= PF_R; | |
02bf8d82 | 5933 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5934 | p->p_flags |= PF_X; |
02bf8d82 | 5935 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5936 | p->p_flags |= PF_W; |
5937 | } | |
5938 | } | |
43a8475c | 5939 | |
bf988460 | 5940 | off -= off_adjust; |
0920dee7 | 5941 | |
30fe1832 AM |
5942 | /* PR ld/20815 - Check that the program header segment, if |
5943 | present, will be loaded into memory. */ | |
5944 | if (p->p_type == PT_PHDR | |
5945 | && phdr_load_seg == NULL | |
5946 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5947 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5948 | { | |
5949 | /* The fix for this error is usually to edit the linker script being | |
5950 | used and set up the program headers manually. Either that or | |
5951 | leave room for the headers at the start of the SECTIONS. */ | |
5952 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5953 | " by LOAD segment"), | |
5954 | abfd); | |
7b3c2715 | 5955 | if (link_info == NULL) |
0a1b45a2 | 5956 | return false; |
7b3c2715 AM |
5957 | /* Arrange for the linker to exit with an error, deleting |
5958 | the output file unless --noinhibit-exec is given. */ | |
5959 | link_info->callbacks->info ("%X"); | |
30fe1832 AM |
5960 | } |
5961 | ||
7c928300 AM |
5962 | /* Check that all sections are in a PT_LOAD segment. |
5963 | Don't check funky gdb generated core files. */ | |
5964 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 | 5965 | { |
0a1b45a2 | 5966 | bool check_vma = true; |
9a83a553 AM |
5967 | |
5968 | for (i = 1; i < m->count; i++) | |
5969 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5970 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5971 | ->this_hdr), p) != 0 | |
5972 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5973 | ->this_hdr), p) != 0) | |
0920dee7 | 5974 | { |
9a83a553 | 5975 | /* Looks like we have overlays packed into the segment. */ |
0a1b45a2 | 5976 | check_vma = false; |
9a83a553 | 5977 | break; |
0920dee7 | 5978 | } |
9a83a553 AM |
5979 | |
5980 | for (i = 0; i < m->count; i++) | |
5981 | { | |
5982 | Elf_Internal_Shdr *this_hdr; | |
5983 | asection *sec; | |
5984 | ||
5985 | sec = m->sections[i]; | |
5986 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5987 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5988 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5989 | { |
4eca0228 | 5990 | _bfd_error_handler |
695344c0 | 5991 | /* xgettext:c-format */ |
871b3ab2 | 5992 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5993 | abfd, sec, j); |
5994 | print_segment_map (m); | |
5995 | } | |
5996 | } | |
5997 | } | |
252b5132 RH |
5998 | } |
5999 | ||
12bd6957 | 6000 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
6001 | |
6002 | if (link_info != NULL | |
6003 | && phdr_load_seg != NULL | |
6004 | && phdr_load_seg->includes_filehdr) | |
6005 | { | |
6006 | /* There is a segment that contains both the file headers and the | |
6007 | program headers, so provide a symbol __ehdr_start pointing there. | |
6008 | A program can use this to examine itself robustly. */ | |
6009 | ||
6010 | struct elf_link_hash_entry *hash | |
6011 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
0a1b45a2 | 6012 | false, false, true); |
30fe1832 AM |
6013 | /* If the symbol was referenced and not defined, define it. */ |
6014 | if (hash != NULL | |
6015 | && (hash->root.type == bfd_link_hash_new | |
6016 | || hash->root.type == bfd_link_hash_undefined | |
6017 | || hash->root.type == bfd_link_hash_undefweak | |
6018 | || hash->root.type == bfd_link_hash_common)) | |
6019 | { | |
6020 | asection *s = NULL; | |
66631823 | 6021 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr / opb; |
30fe1832 AM |
6022 | |
6023 | if (phdr_load_seg->count != 0) | |
6024 | /* The segment contains sections, so use the first one. */ | |
6025 | s = phdr_load_seg->sections[0]; | |
6026 | else | |
6027 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
6028 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6029 | if (m->p_type == PT_LOAD && m->count != 0) | |
6030 | { | |
6031 | s = m->sections[0]; | |
6032 | break; | |
6033 | } | |
6034 | ||
6035 | if (s != NULL) | |
6036 | { | |
6037 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6038 | hash->root.u.def.section = s; | |
6039 | } | |
6040 | else | |
6041 | { | |
6042 | hash->root.u.def.value = filehdr_vaddr; | |
6043 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6044 | } | |
6045 | ||
6046 | hash->root.type = bfd_link_hash_defined; | |
6047 | hash->def_regular = 1; | |
6048 | hash->non_elf = 0; | |
6049 | } | |
6050 | } | |
6051 | ||
0a1b45a2 | 6052 | return true; |
f3520d2f AM |
6053 | } |
6054 | ||
1faa385f NC |
6055 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6056 | is no defined method for detecting such files, so we have to | |
6057 | use heuristics instead. */ | |
6058 | ||
0a1b45a2 | 6059 | bool |
1faa385f NC |
6060 | is_debuginfo_file (bfd *abfd) |
6061 | { | |
6062 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 6063 | return false; |
1faa385f NC |
6064 | |
6065 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6066 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6067 | Elf_Internal_Shdr **headerp; | |
6068 | ||
6069 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6070 | { | |
6071 | Elf_Internal_Shdr *header = * headerp; | |
6072 | ||
6073 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6074 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6075 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6076 | && header->sh_type != SHT_NOBITS | |
6077 | && header->sh_type != SHT_NOTE) | |
0a1b45a2 | 6078 | return false; |
1faa385f NC |
6079 | } |
6080 | ||
0a1b45a2 | 6081 | return true; |
1faa385f NC |
6082 | } |
6083 | ||
1ff6de03 NA |
6084 | /* Assign file positions for the other sections, except for compressed debugging |
6085 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f | 6086 | |
0a1b45a2 | 6087 | static bool |
f3520d2f AM |
6088 | assign_file_positions_for_non_load_sections (bfd *abfd, |
6089 | struct bfd_link_info *link_info) | |
6090 | { | |
6091 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6092 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6093 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6094 | Elf_Internal_Phdr *phdrs; |
6095 | Elf_Internal_Phdr *p; | |
6096 | struct elf_segment_map *m; | |
f3520d2f | 6097 | file_ptr off; |
66631823 | 6098 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
c410035d | 6099 | bfd_vma maxpagesize; |
f3520d2f | 6100 | |
c410035d AM |
6101 | if (link_info != NULL) |
6102 | maxpagesize = link_info->maxpagesize; | |
6103 | else | |
6104 | maxpagesize = bed->maxpagesize; | |
5c182d5f | 6105 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6106 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6107 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6108 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6109 | { |
5c182d5f AM |
6110 | Elf_Internal_Shdr *hdr; |
6111 | ||
6112 | hdr = *hdrpp; | |
6113 | if (hdr->bfd_section != NULL | |
252e386e AM |
6114 | && (hdr->bfd_section->filepos != 0 |
6115 | || (hdr->sh_type == SHT_NOBITS | |
6116 | && hdr->contents == NULL))) | |
627b32bc | 6117 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6118 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6119 | { | |
1faa385f NC |
6120 | if (hdr->sh_size != 0 |
6121 | /* PR 24717 - debuginfo files are known to be not strictly | |
6122 | compliant with the ELF standard. In particular they often | |
6123 | have .note.gnu.property sections that are outside of any | |
6124 | loadable segment. This is not a problem for such files, | |
6125 | so do not warn about them. */ | |
6126 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6127 | _bfd_error_handler |
695344c0 | 6128 | /* xgettext:c-format */ |
871b3ab2 | 6129 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6130 | abfd, |
6131 | (hdr->bfd_section == NULL | |
6132 | ? "*unknown*" | |
6133 | : hdr->bfd_section->name)); | |
3ba71138 L |
6134 | /* We don't need to page align empty sections. */ |
6135 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f | 6136 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
c410035d | 6137 | maxpagesize); |
5c182d5f AM |
6138 | else |
6139 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
6140 | hdr->sh_addralign); | |
6141 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
0a1b45a2 | 6142 | false); |
5c182d5f AM |
6143 | } |
6144 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6145 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6146 | /* We don't know the offset of these sections yet: their size has |
6147 | not been decided. */ | |
0ce398f1 | 6148 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6149 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6150 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6151 | && abfd->is_linker_output))) | |
12bd6957 | 6152 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6153 | || (elf_symtab_shndx_list (abfd) != NULL |
6154 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6155 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6156 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6157 | hdr->sh_offset = -1; |
6158 | else | |
0a1b45a2 | 6159 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
5c182d5f | 6160 | } |
30fe1832 | 6161 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6162 | |
252b5132 RH |
6163 | /* Now that we have set the section file positions, we can set up |
6164 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6165 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6166 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6167 | { |
129af99f | 6168 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6169 | { |
66631823 | 6170 | bfd_vma start, end; /* Bytes. */ |
0a1b45a2 | 6171 | bool ok; |
1ea63fd2 | 6172 | |
129af99f | 6173 | if (link_info != NULL) |
8c37241b | 6174 | { |
129af99f | 6175 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6176 | in link_info. Note that there may be padding between |
6177 | relro_start and the first RELRO section. */ | |
6178 | start = link_info->relro_start; | |
6179 | end = link_info->relro_end; | |
6180 | } | |
6181 | else if (m->count != 0) | |
6182 | { | |
6183 | if (!m->p_size_valid) | |
6184 | abort (); | |
6185 | start = m->sections[0]->vma; | |
66631823 | 6186 | end = start + m->p_size / opb; |
f2731e0c AM |
6187 | } |
6188 | else | |
6189 | { | |
6190 | start = 0; | |
6191 | end = 0; | |
6192 | } | |
6193 | ||
0a1b45a2 | 6194 | ok = false; |
f2731e0c AM |
6195 | if (start < end) |
6196 | { | |
6197 | struct elf_segment_map *lm; | |
6198 | const Elf_Internal_Phdr *lp; | |
6199 | unsigned int i; | |
6200 | ||
6201 | /* Find a LOAD segment containing a section in the RELRO | |
6202 | segment. */ | |
12bd6957 | 6203 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6204 | lm != NULL; |
6205 | lm = lm->next, lp++) | |
8c37241b JJ |
6206 | { |
6207 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6208 | && lm->count != 0 |
dbc88fc1 AM |
6209 | && (lm->sections[lm->count - 1]->vma |
6210 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
66631823 | 6211 | ? lm->sections[lm->count - 1]->size / opb |
dbc88fc1 | 6212 | : 0)) > start |
f2731e0c | 6213 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6214 | break; |
6215 | } | |
f2731e0c | 6216 | |
01f7e10c | 6217 | if (lm != NULL) |
129af99f | 6218 | { |
01f7e10c AM |
6219 | /* Find the section starting the RELRO segment. */ |
6220 | for (i = 0; i < lm->count; i++) | |
6221 | { | |
6222 | asection *s = lm->sections[i]; | |
6223 | if (s->vma >= start | |
6224 | && s->vma < end | |
6225 | && s->size != 0) | |
6226 | break; | |
6227 | } | |
6228 | ||
6229 | if (i < lm->count) | |
6230 | { | |
502794d4 CE |
6231 | p->p_vaddr = lm->sections[i]->vma * opb; |
6232 | p->p_paddr = lm->sections[i]->lma * opb; | |
01f7e10c | 6233 | p->p_offset = lm->sections[i]->filepos; |
66631823 | 6234 | p->p_memsz = end * opb - p->p_vaddr; |
01f7e10c AM |
6235 | p->p_filesz = p->p_memsz; |
6236 | ||
6237 | /* The RELRO segment typically ends a few bytes | |
6238 | into .got.plt but other layouts are possible. | |
6239 | In cases where the end does not match any | |
6240 | loaded section (for instance is in file | |
6241 | padding), trim p_filesz back to correspond to | |
6242 | the end of loaded section contents. */ | |
6243 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6244 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6245 | ||
6246 | /* Preserve the alignment and flags if they are | |
6247 | valid. The gold linker generates RW/4 for | |
6248 | the PT_GNU_RELRO section. It is better for | |
6249 | objcopy/strip to honor these attributes | |
6250 | otherwise gdb will choke when using separate | |
6251 | debug files. */ | |
6252 | if (!m->p_align_valid) | |
6253 | p->p_align = 1; | |
6254 | if (!m->p_flags_valid) | |
6255 | p->p_flags = PF_R; | |
0a1b45a2 | 6256 | ok = true; |
01f7e10c | 6257 | } |
129af99f | 6258 | } |
b84a33b5 | 6259 | } |
01f7e10c AM |
6260 | if (link_info != NULL) |
6261 | BFD_ASSERT (ok); | |
6262 | if (!ok) | |
6263 | memset (p, 0, sizeof *p); | |
129af99f | 6264 | } |
04c3a755 NS |
6265 | else if (p->p_type == PT_GNU_STACK) |
6266 | { | |
6267 | if (m->p_size_valid) | |
6268 | p->p_memsz = m->p_size; | |
6269 | } | |
129af99f AS |
6270 | else if (m->count != 0) |
6271 | { | |
e06efbf1 | 6272 | unsigned int i; |
1a9ccd70 | 6273 | |
129af99f AS |
6274 | if (p->p_type != PT_LOAD |
6275 | && (p->p_type != PT_NOTE | |
6276 | || bfd_get_format (abfd) != bfd_core)) | |
6277 | { | |
1a9ccd70 NC |
6278 | /* A user specified segment layout may include a PHDR |
6279 | segment that overlaps with a LOAD segment... */ | |
6280 | if (p->p_type == PT_PHDR) | |
6281 | { | |
6282 | m->count = 0; | |
6283 | continue; | |
6284 | } | |
6285 | ||
c86934ce NC |
6286 | if (m->includes_filehdr || m->includes_phdrs) |
6287 | { | |
b1fa9dd6 | 6288 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6289 | _bfd_error_handler |
871b3ab2 | 6290 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6291 | "and/or program header"), |
6292 | abfd, (int) (p - phdrs)); | |
0a1b45a2 | 6293 | return false; |
c86934ce | 6294 | } |
129af99f | 6295 | |
86b2281f | 6296 | p->p_filesz = 0; |
129af99f | 6297 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6298 | for (i = m->count; i-- != 0;) |
6299 | { | |
6300 | asection *sect = m->sections[i]; | |
6301 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6302 | if (hdr->sh_type != SHT_NOBITS) | |
6303 | { | |
6304 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6305 | + hdr->sh_size); | |
9917b559 L |
6306 | /* NB: p_memsz of the loadable PT_NOTE segment |
6307 | should be the same as p_filesz. */ | |
6308 | if (p->p_type == PT_NOTE | |
6309 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
6310 | p->p_memsz = p->p_filesz; | |
86b2281f AM |
6311 | break; |
6312 | } | |
6313 | } | |
129af99f AS |
6314 | } |
6315 | } | |
252b5132 RH |
6316 | } |
6317 | ||
0a1b45a2 | 6318 | return true; |
252b5132 RH |
6319 | } |
6320 | ||
6a40cf0c NC |
6321 | static elf_section_list * |
6322 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6323 | { | |
6324 | for (;list != NULL; list = list->next) | |
6325 | if (list->ndx == i) | |
6326 | break; | |
6327 | return list; | |
6328 | } | |
6329 | ||
252b5132 RH |
6330 | /* Work out the file positions of all the sections. This is called by |
6331 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6332 | VMAs must be known before this is called. | |
6333 | ||
e0638f70 | 6334 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6335 | "side-channel" data attached to a section to which they apply, and those that |
6336 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6337 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6338 | here, unless they form part of the loadable image. Reloc sections not | |
6339 | assigned here (and compressed debugging sections and CTF sections which | |
6340 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6341 | assign_file_positions_for_relocs. |
252b5132 RH |
6342 | |
6343 | We also don't set the positions of the .symtab and .strtab here. */ | |
6344 | ||
0a1b45a2 | 6345 | static bool |
c84fca4d AO |
6346 | assign_file_positions_except_relocs (bfd *abfd, |
6347 | struct bfd_link_info *link_info) | |
252b5132 | 6348 | { |
5c182d5f AM |
6349 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6350 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6351 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6352 | unsigned int alloc; |
252b5132 RH |
6353 | |
6354 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6355 | && bfd_get_format (abfd) != bfd_core) | |
6356 | { | |
5c182d5f AM |
6357 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6358 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6359 | Elf_Internal_Shdr **hdrpp; |
6360 | unsigned int i; | |
a485e98e | 6361 | file_ptr off; |
252b5132 RH |
6362 | |
6363 | /* Start after the ELF header. */ | |
6364 | off = i_ehdrp->e_ehsize; | |
6365 | ||
6366 | /* We are not creating an executable, which means that we are | |
6367 | not creating a program header, and that the actual order of | |
6368 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6369 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6370 | { |
6371 | Elf_Internal_Shdr *hdr; | |
6372 | ||
6373 | hdr = *hdrpp; | |
e0638f70 AM |
6374 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6375 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6376 | /* Do not assign offsets for these sections yet: we don't know |
6377 | their sizes. */ | |
0ce398f1 | 6378 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6379 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6380 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6381 | && abfd->is_linker_output))) | |
12bd6957 | 6382 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6383 | || (elf_symtab_shndx_list (abfd) != NULL |
6384 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6385 | || i == elf_strtab_sec (abfd) |
6386 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6387 | { |
6388 | hdr->sh_offset = -1; | |
252b5132 | 6389 | } |
9ad5cbcf | 6390 | else |
0a1b45a2 | 6391 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 6392 | } |
a485e98e AM |
6393 | |
6394 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6395 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6396 | } |
6397 | else | |
6398 | { | |
252b5132 | 6399 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6400 | assignment of sections to segments. */ |
f3520d2f | 6401 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
0a1b45a2 | 6402 | return false; |
f3520d2f AM |
6403 | |
6404 | /* And for non-load sections. */ | |
6405 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
0a1b45a2 | 6406 | return false; |
6d6c25c8 | 6407 | } |
f3520d2f | 6408 | |
6d6c25c8 | 6409 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
0a1b45a2 | 6410 | return false; |
1a9ccd70 | 6411 | |
6d6c25c8 AM |
6412 | /* Write out the program headers. */ |
6413 | alloc = i_ehdrp->e_phnum; | |
6414 | if (alloc != 0) | |
6415 | { | |
30fe1832 | 6416 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 | 6417 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
0a1b45a2 | 6418 | return false; |
252b5132 RH |
6419 | } |
6420 | ||
0a1b45a2 | 6421 | return true; |
252b5132 RH |
6422 | } |
6423 | ||
0a1b45a2 | 6424 | bool |
ed7e9d0b AM |
6425 | _bfd_elf_init_file_header (bfd *abfd, |
6426 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6427 | { |
3d540e93 | 6428 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6429 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6430 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6431 | |
6432 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6433 | |
2b0f7ef9 | 6434 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6435 | if (shstrtab == NULL) |
0a1b45a2 | 6436 | return false; |
252b5132 RH |
6437 | |
6438 | elf_shstrtab (abfd) = shstrtab; | |
6439 | ||
6440 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6441 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6442 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6443 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6444 | ||
6445 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6446 | i_ehdrp->e_ident[EI_DATA] = | |
6447 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6448 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6449 | ||
252b5132 RH |
6450 | if ((abfd->flags & DYNAMIC) != 0) |
6451 | i_ehdrp->e_type = ET_DYN; | |
6452 | else if ((abfd->flags & EXEC_P) != 0) | |
6453 | i_ehdrp->e_type = ET_EXEC; | |
6454 | else if (bfd_get_format (abfd) == bfd_core) | |
6455 | i_ehdrp->e_type = ET_CORE; | |
6456 | else | |
6457 | i_ehdrp->e_type = ET_REL; | |
6458 | ||
6459 | switch (bfd_get_arch (abfd)) | |
6460 | { | |
6461 | case bfd_arch_unknown: | |
6462 | i_ehdrp->e_machine = EM_NONE; | |
6463 | break; | |
aa4f99bb AO |
6464 | |
6465 | /* There used to be a long list of cases here, each one setting | |
6466 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6467 | in the corresponding bfd definition. To avoid duplication, | |
6468 | the switch was removed. Machines that need special handling | |
6469 | can generally do it in elf_backend_final_write_processing(), | |
6470 | unless they need the information earlier than the final write. | |
6471 | Such need can generally be supplied by replacing the tests for | |
6472 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6473 | default: |
9c5bfbb7 AM |
6474 | i_ehdrp->e_machine = bed->elf_machine_code; |
6475 | } | |
aa4f99bb | 6476 | |
252b5132 RH |
6477 | i_ehdrp->e_version = bed->s->ev_current; |
6478 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6479 | ||
c044fabd | 6480 | /* No program header, for now. */ |
252b5132 RH |
6481 | i_ehdrp->e_phoff = 0; |
6482 | i_ehdrp->e_phentsize = 0; | |
6483 | i_ehdrp->e_phnum = 0; | |
6484 | ||
c044fabd | 6485 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6486 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6487 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6488 | ||
252b5132 | 6489 | elf_tdata (abfd)->symtab_hdr.sh_name = |
0a1b45a2 | 6490 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", false); |
252b5132 | 6491 | elf_tdata (abfd)->strtab_hdr.sh_name = |
0a1b45a2 | 6492 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", false); |
252b5132 | 6493 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
0a1b45a2 | 6494 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", false); |
252b5132 | 6495 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6496 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6497 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
0a1b45a2 | 6498 | return false; |
252b5132 | 6499 | |
0a1b45a2 | 6500 | return true; |
252b5132 RH |
6501 | } |
6502 | ||
6d6c25c8 AM |
6503 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6504 | ||
6505 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6506 | ascending order, as per the ELF spec. But this breaks some programs, | |
6507 | including the Linux kernel. But really either the spec should be | |
6508 | changed or the programs updated. */ | |
6509 | ||
0a1b45a2 | 6510 | bool |
6d6c25c8 AM |
6511 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) |
6512 | { | |
6513 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6514 | { | |
6515 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6516 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6517 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6518 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6519 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6520 | ||
6521 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6522 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6523 | for (; segment < end_segment; segment++) | |
6524 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6525 | p_vaddr = segment->p_vaddr; | |
6526 | ||
6527 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6528 | segments is non-zero. */ | |
6529 | if (p_vaddr) | |
6530 | i_ehdrp->e_type = ET_EXEC; | |
6531 | } | |
0a1b45a2 | 6532 | return true; |
6d6c25c8 AM |
6533 | } |
6534 | ||
252b5132 | 6535 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6536 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6537 | |
0a1b45a2 | 6538 | static bool |
0ce398f1 | 6539 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) |
252b5132 RH |
6540 | { |
6541 | file_ptr off; | |
e06efbf1 | 6542 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6543 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6544 | Elf_Internal_Ehdr *i_ehdrp; |
6545 | const struct elf_backend_data *bed; | |
252b5132 | 6546 | |
12bd6957 | 6547 | off = elf_next_file_pos (abfd); |
252b5132 | 6548 | |
e06efbf1 L |
6549 | shdrpp = elf_elfsections (abfd); |
6550 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6551 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6552 | { |
252b5132 | 6553 | shdrp = *shdrpp; |
0ce398f1 L |
6554 | if (shdrp->sh_offset == -1) |
6555 | { | |
3e19fb8f | 6556 | asection *sec = shdrp->bfd_section; |
0a1b45a2 AM |
6557 | bool is_rel = (shdrp->sh_type == SHT_REL |
6558 | || shdrp->sh_type == SHT_RELA); | |
6559 | bool is_ctf = sec && bfd_section_is_ctf (sec); | |
0ce398f1 | 6560 | if (is_rel |
1ff6de03 | 6561 | || is_ctf |
3e19fb8f | 6562 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6563 | { |
1ff6de03 | 6564 | if (!is_rel && !is_ctf) |
0ce398f1 | 6565 | { |
3e19fb8f L |
6566 | const char *name = sec->name; |
6567 | struct bfd_elf_section_data *d; | |
6568 | ||
0ce398f1 | 6569 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6570 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 | 6571 | shdrp->contents)) |
0a1b45a2 | 6572 | return false; |
3e19fb8f L |
6573 | |
6574 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6575 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6576 | { | |
6577 | /* If section is compressed with zlib-gnu, convert | |
6578 | section name from .debug_* to .zdebug_*. */ | |
6579 | char *new_name | |
6580 | = convert_debug_to_zdebug (abfd, name); | |
6581 | if (new_name == NULL) | |
0a1b45a2 | 6582 | return false; |
3e19fb8f L |
6583 | name = new_name; |
6584 | } | |
dd905818 | 6585 | /* Add section name to section name section. */ |
3e19fb8f L |
6586 | if (shdrp->sh_name != (unsigned int) -1) |
6587 | abort (); | |
6588 | shdrp->sh_name | |
6589 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
0a1b45a2 | 6590 | name, false); |
3e19fb8f L |
6591 | d = elf_section_data (sec); |
6592 | ||
dd905818 | 6593 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6594 | if (d->rel.hdr |
6595 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6596 | d->rel.hdr, | |
0a1b45a2 AM |
6597 | name, false)) |
6598 | return false; | |
3e19fb8f L |
6599 | if (d->rela.hdr |
6600 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6601 | d->rela.hdr, | |
0a1b45a2 AM |
6602 | name, true)) |
6603 | return false; | |
3e19fb8f | 6604 | |
0ce398f1 | 6605 | /* Update section size and contents. */ |
3e19fb8f L |
6606 | shdrp->sh_size = sec->size; |
6607 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6608 | shdrp->bfd_section->contents = NULL; |
6609 | } | |
1ff6de03 NA |
6610 | else if (is_ctf) |
6611 | { | |
6612 | /* Update section size and contents. */ | |
6613 | shdrp->sh_size = sec->size; | |
6614 | shdrp->contents = sec->contents; | |
6615 | } | |
6616 | ||
0ce398f1 L |
6617 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6618 | off, | |
0a1b45a2 | 6619 | true); |
0ce398f1 L |
6620 | } |
6621 | } | |
252b5132 RH |
6622 | } |
6623 | ||
3e19fb8f L |
6624 | /* Place section name section after DWARF debug sections have been |
6625 | compressed. */ | |
6626 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6627 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6628 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
0a1b45a2 | 6629 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, true); |
3e19fb8f L |
6630 | |
6631 | /* Place the section headers. */ | |
a485e98e AM |
6632 | i_ehdrp = elf_elfheader (abfd); |
6633 | bed = get_elf_backend_data (abfd); | |
6634 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6635 | i_ehdrp->e_shoff = off; | |
6636 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6637 | elf_next_file_pos (abfd) = off; |
0ce398f1 | 6638 | |
0a1b45a2 | 6639 | return true; |
252b5132 RH |
6640 | } |
6641 | ||
0a1b45a2 | 6642 | bool |
217aa764 | 6643 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6644 | { |
9c5bfbb7 | 6645 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6646 | Elf_Internal_Shdr **i_shdrp; |
0a1b45a2 | 6647 | bool failed; |
9ad5cbcf | 6648 | unsigned int count, num_sec; |
30e8ee25 | 6649 | struct elf_obj_tdata *t; |
252b5132 RH |
6650 | |
6651 | if (! abfd->output_has_begun | |
217aa764 | 6652 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
0a1b45a2 | 6653 | return false; |
db727370 JL |
6654 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6655 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6656 | sections, and modification of existing section sizes was restricted. | |
6657 | This means the ELF header, program headers and section headers can't have | |
6658 | changed. | |
6659 | If the contents of any sections has been modified, then those changes have | |
6660 | already been written to the BFD. */ | |
6661 | else if (abfd->direction == both_direction) | |
6662 | { | |
6663 | BFD_ASSERT (abfd->output_has_begun); | |
0a1b45a2 | 6664 | return true; |
db727370 | 6665 | } |
252b5132 RH |
6666 | |
6667 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6668 | |
0a1b45a2 | 6669 | failed = false; |
252b5132 RH |
6670 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6671 | if (failed) | |
0a1b45a2 | 6672 | return false; |
252b5132 | 6673 | |
0ce398f1 | 6674 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
0a1b45a2 | 6675 | return false; |
252b5132 | 6676 | |
c044fabd | 6677 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6678 | num_sec = elf_numsections (abfd); |
6679 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6680 | { |
3e19fb8f L |
6681 | i_shdrp[count]->sh_name |
6682 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6683 | i_shdrp[count]->sh_name); | |
252b5132 | 6684 | if (bed->elf_backend_section_processing) |
75506100 | 6685 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
0a1b45a2 | 6686 | return false; |
252b5132 RH |
6687 | if (i_shdrp[count]->contents) |
6688 | { | |
dc810e39 AM |
6689 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6690 | ||
252b5132 | 6691 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6692 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
0a1b45a2 | 6693 | return false; |
252b5132 RH |
6694 | } |
6695 | } | |
6696 | ||
6697 | /* Write out the section header names. */ | |
30e8ee25 | 6698 | t = elf_tdata (abfd); |
26ae6d5e | 6699 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6700 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6701 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
0a1b45a2 | 6702 | return false; |
252b5132 | 6703 | |
cc364be6 | 6704 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
0a1b45a2 | 6705 | return false; |
252b5132 | 6706 | |
ff59fc36 | 6707 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
0a1b45a2 | 6708 | return false; |
ff59fc36 RM |
6709 | |
6710 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6711 | if (t->o->build_id.after_write_object_contents != NULL) |
6712 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 | 6713 | |
0a1b45a2 | 6714 | return true; |
252b5132 RH |
6715 | } |
6716 | ||
0a1b45a2 | 6717 | bool |
217aa764 | 6718 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6719 | { |
c044fabd | 6720 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6721 | return _bfd_elf_write_object_contents (abfd); |
6722 | } | |
c044fabd KH |
6723 | |
6724 | /* Given a section, search the header to find them. */ | |
6725 | ||
cb33740c | 6726 | unsigned int |
198beae2 | 6727 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6728 | { |
9c5bfbb7 | 6729 | const struct elf_backend_data *bed; |
91d6fa6a | 6730 | unsigned int sec_index; |
252b5132 | 6731 | |
9ad5cbcf AM |
6732 | if (elf_section_data (asect) != NULL |
6733 | && elf_section_data (asect)->this_idx != 0) | |
6734 | return elf_section_data (asect)->this_idx; | |
6735 | ||
6736 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6737 | sec_index = SHN_ABS; |
af746e92 | 6738 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6739 | sec_index = SHN_COMMON; |
af746e92 | 6740 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6741 | sec_index = SHN_UNDEF; |
af746e92 | 6742 | else |
91d6fa6a | 6743 | sec_index = SHN_BAD; |
252b5132 | 6744 | |
af746e92 | 6745 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6746 | if (bed->elf_backend_section_from_bfd_section) |
6747 | { | |
91d6fa6a | 6748 | int retval = sec_index; |
9ad5cbcf | 6749 | |
af746e92 AM |
6750 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6751 | return retval; | |
252b5132 RH |
6752 | } |
6753 | ||
91d6fa6a | 6754 | if (sec_index == SHN_BAD) |
af746e92 | 6755 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6756 | |
91d6fa6a | 6757 | return sec_index; |
252b5132 RH |
6758 | } |
6759 | ||
6760 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6761 | on error. */ | |
6762 | ||
6763 | int | |
217aa764 | 6764 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6765 | { |
6766 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6767 | int idx; | |
6768 | flagword flags = asym_ptr->flags; | |
6769 | ||
6770 | /* When gas creates relocations against local labels, it creates its | |
6771 | own symbol for the section, but does put the symbol into the | |
6772 | symbol chain, so udata is 0. When the linker is generating | |
6773 | relocatable output, this section symbol may be for one of the | |
6774 | input sections rather than the output section. */ | |
6775 | if (asym_ptr->udata.i == 0 | |
6776 | && (flags & BSF_SECTION_SYM) | |
6777 | && asym_ptr->section) | |
6778 | { | |
5372391b | 6779 | asection *sec; |
252b5132 RH |
6780 | int indx; |
6781 | ||
5372391b AM |
6782 | sec = asym_ptr->section; |
6783 | if (sec->owner != abfd && sec->output_section != NULL) | |
6784 | sec = sec->output_section; | |
6785 | if (sec->owner == abfd | |
6786 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6787 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6788 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6789 | } | |
6790 | ||
6791 | idx = asym_ptr->udata.i; | |
6792 | ||
6793 | if (idx == 0) | |
6794 | { | |
6795 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6796 | which is used in a relocation entry. */ |
4eca0228 | 6797 | _bfd_error_handler |
695344c0 | 6798 | /* xgettext:c-format */ |
871b3ab2 | 6799 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6800 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6801 | bfd_set_error (bfd_error_no_symbols); |
6802 | return -1; | |
6803 | } | |
6804 | ||
6805 | #if DEBUG & 4 | |
6806 | { | |
6807 | fprintf (stderr, | |
cd9af601 AM |
6808 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6809 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6810 | fflush (stderr); |
6811 | } | |
6812 | #endif | |
6813 | ||
6814 | return idx; | |
6815 | } | |
6816 | ||
84d1d650 | 6817 | /* Rewrite program header information. */ |
252b5132 | 6818 | |
0a1b45a2 | 6819 | static bool |
c410035d | 6820 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd, bfd_vma maxpagesize) |
252b5132 | 6821 | { |
b34976b6 AM |
6822 | Elf_Internal_Ehdr *iehdr; |
6823 | struct elf_segment_map *map; | |
6824 | struct elf_segment_map *map_first; | |
6825 | struct elf_segment_map **pointer_to_map; | |
6826 | Elf_Internal_Phdr *segment; | |
6827 | asection *section; | |
6828 | unsigned int i; | |
6829 | unsigned int num_segments; | |
0a1b45a2 AM |
6830 | bool phdr_included = false; |
6831 | bool p_paddr_valid; | |
b34976b6 AM |
6832 | struct elf_segment_map *phdr_adjust_seg = NULL; |
6833 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6834 | const struct elf_backend_data *bed; |
502794d4 | 6835 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
bc67d8a6 | 6836 | |
caf47ea6 | 6837 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6838 | iehdr = elf_elfheader (ibfd); |
6839 | ||
bc67d8a6 | 6840 | map_first = NULL; |
c044fabd | 6841 | pointer_to_map = &map_first; |
252b5132 RH |
6842 | |
6843 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6844 | |
6845 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6846 | #define SEGMENT_END(segment, start) \ |
6847 | (start + (segment->p_memsz > segment->p_filesz \ | |
6848 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6849 | |
eecdbe52 JJ |
6850 | #define SECTION_SIZE(section, segment) \ |
6851 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6852 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6853 | ? section->size : 0) |
eecdbe52 | 6854 | |
b34976b6 | 6855 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6856 | the given segment. VMA addresses are compared. */ |
502794d4 CE |
6857 | #define IS_CONTAINED_BY_VMA(section, segment, opb) \ |
6858 | (section->vma * (opb) >= segment->p_vaddr \ | |
6859 | && (section->vma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6860 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6861 | |
b34976b6 | 6862 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6863 | the given segment. LMA addresses are compared. */ |
502794d4 CE |
6864 | #define IS_CONTAINED_BY_LMA(section, segment, base, opb) \ |
6865 | (section->lma * (opb) >= base \ | |
6866 | && (section->lma + SECTION_SIZE (section, segment) / (opb) >= section->lma) \ | |
6867 | && (section->lma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6868 | <= SEGMENT_END (segment, base))) |
252b5132 | 6869 | |
0efc80c8 L |
6870 | /* Handle PT_NOTE segment. */ |
6871 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6872 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6873 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6874 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6875 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6876 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6877 | |
0efc80c8 L |
6878 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6879 | etc. */ | |
6880 | #define IS_COREFILE_NOTE(p, s) \ | |
6881 | (IS_NOTE (p, s) \ | |
6882 | && bfd_get_format (ibfd) == bfd_core \ | |
6883 | && s->vma == 0 \ | |
6884 | && s->lma == 0) | |
6885 | ||
252b5132 RH |
6886 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6887 | linker, which generates a PT_INTERP section with p_vaddr and | |
6888 | p_memsz set to 0. */ | |
aecc8f8a AM |
6889 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6890 | (p->p_vaddr == 0 \ | |
6891 | && p->p_paddr == 0 \ | |
6892 | && p->p_memsz == 0 \ | |
6893 | && p->p_filesz > 0 \ | |
6894 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6895 | && s->size > 0 \ |
aecc8f8a | 6896 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6897 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6898 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6899 | |
bc67d8a6 NC |
6900 | /* Decide if the given section should be included in the given segment. |
6901 | A section will be included if: | |
f5ffc919 | 6902 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6903 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6904 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6905 | segment. |
bc67d8a6 | 6906 | 3. There is an output section associated with it, |
eecdbe52 | 6907 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6908 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6909 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6910 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6911 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6912 | (with the possible exception of .dynamic). */ |
502794d4 | 6913 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed, opb) \ |
2b05f1b7 | 6914 | ((((segment->p_paddr \ |
502794d4 CE |
6915 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr, opb) \ |
6916 | : IS_CONTAINED_BY_VMA (section, segment, opb)) \ | |
2b05f1b7 | 6917 | && (section->flags & SEC_ALLOC) != 0) \ |
0efc80c8 | 6918 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6919 | && segment->p_type != PT_GNU_STACK \ |
6920 | && (segment->p_type != PT_TLS \ | |
6921 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6922 | && (segment->p_type == PT_LOAD \ | |
6923 | || segment->p_type == PT_TLS \ | |
6924 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6925 | && (segment->p_type != PT_DYNAMIC \ | |
6926 | || SECTION_SIZE (section, segment) > 0 \ | |
6927 | || (segment->p_paddr \ | |
502794d4 CE |
6928 | ? segment->p_paddr != section->lma * (opb) \ |
6929 | : segment->p_vaddr != section->vma * (opb)) \ | |
fd361982 | 6930 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6931 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6932 | |
9f17e2a6 L |
6933 | /* If the output section of a section in the input segment is NULL, |
6934 | it is removed from the corresponding output segment. */ | |
502794d4 CE |
6935 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed, opb) \ |
6936 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb) \ | |
9f17e2a6 L |
6937 | && section->output_section != NULL) |
6938 | ||
b34976b6 | 6939 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6940 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6941 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6942 | ||
6943 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6944 | their VMA address ranges and their LMA address ranges overlap. | |
6945 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6946 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6947 | to the same VMA range, but with the .data section mapped to a different | |
6948 | LMA. */ | |
aecc8f8a | 6949 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6950 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6951 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6952 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6953 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6954 | |
6955 | /* Initialise the segment mark field. */ | |
6956 | for (section = ibfd->sections; section != NULL; section = section->next) | |
0a1b45a2 | 6957 | section->segment_mark = false; |
bc67d8a6 | 6958 | |
5c44b38e AM |
6959 | /* The Solaris linker creates program headers in which all the |
6960 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6961 | file, we get confused. Check for this case, and if we find it | |
6962 | don't set the p_paddr_valid fields. */ | |
0a1b45a2 | 6963 | p_paddr_valid = false; |
5c44b38e AM |
6964 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6965 | i < num_segments; | |
6966 | i++, segment++) | |
6967 | if (segment->p_paddr != 0) | |
6968 | { | |
0a1b45a2 | 6969 | p_paddr_valid = true; |
5c44b38e AM |
6970 | break; |
6971 | } | |
6972 | ||
252b5132 | 6973 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6974 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6975 | in the loadable segments. These can be created by weird |
aecc8f8a | 6976 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6977 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6978 | i < num_segments; | |
c044fabd | 6979 | i++, segment++) |
252b5132 | 6980 | { |
252b5132 | 6981 | unsigned int j; |
c044fabd | 6982 | Elf_Internal_Phdr *segment2; |
252b5132 | 6983 | |
aecc8f8a AM |
6984 | if (segment->p_type == PT_INTERP) |
6985 | for (section = ibfd->sections; section; section = section->next) | |
6986 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6987 | { | |
6988 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6989 | assignment code will work. */ |
502794d4 | 6990 | segment->p_vaddr = section->vma * opb; |
aecc8f8a AM |
6991 | break; |
6992 | } | |
6993 | ||
bc67d8a6 | 6994 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6995 | { |
6996 | /* Remove PT_GNU_RELRO segment. */ | |
6997 | if (segment->p_type == PT_GNU_RELRO) | |
6998 | segment->p_type = PT_NULL; | |
6999 | continue; | |
7000 | } | |
c044fabd | 7001 | |
bc67d8a6 | 7002 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 7003 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
7004 | { |
7005 | bfd_signed_vma extra_length; | |
c044fabd | 7006 | |
bc67d8a6 | 7007 | if (segment2->p_type != PT_LOAD |
0067a569 | 7008 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 7009 | continue; |
c044fabd | 7010 | |
bc67d8a6 NC |
7011 | /* Merge the two segments together. */ |
7012 | if (segment2->p_vaddr < segment->p_vaddr) | |
7013 | { | |
c044fabd | 7014 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 7015 | SEGMENT. */ |
0067a569 AM |
7016 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
7017 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 7018 | |
bc67d8a6 NC |
7019 | if (extra_length > 0) |
7020 | { | |
0067a569 | 7021 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
7022 | segment2->p_filesz += extra_length; |
7023 | } | |
c044fabd | 7024 | |
bc67d8a6 | 7025 | segment->p_type = PT_NULL; |
c044fabd | 7026 | |
bc67d8a6 NC |
7027 | /* Since we have deleted P we must restart the outer loop. */ |
7028 | i = 0; | |
7029 | segment = elf_tdata (ibfd)->phdr; | |
7030 | break; | |
7031 | } | |
7032 | else | |
7033 | { | |
c044fabd | 7034 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 7035 | SEGMENT2. */ |
0067a569 AM |
7036 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
7037 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 7038 | |
bc67d8a6 NC |
7039 | if (extra_length > 0) |
7040 | { | |
0067a569 | 7041 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7042 | segment->p_filesz += extra_length; |
7043 | } | |
c044fabd | 7044 | |
bc67d8a6 NC |
7045 | segment2->p_type = PT_NULL; |
7046 | } | |
7047 | } | |
7048 | } | |
c044fabd | 7049 | |
bc67d8a6 NC |
7050 | /* The second scan attempts to assign sections to segments. */ |
7051 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7052 | i < num_segments; | |
0067a569 | 7053 | i++, segment++) |
bc67d8a6 | 7054 | { |
0067a569 AM |
7055 | unsigned int section_count; |
7056 | asection **sections; | |
7057 | asection *output_section; | |
7058 | unsigned int isec; | |
9933dc52 AM |
7059 | asection *matching_lma; |
7060 | asection *suggested_lma; | |
0067a569 | 7061 | unsigned int j; |
446f7ed5 | 7062 | size_t amt; |
0067a569 | 7063 | asection *first_section; |
bc67d8a6 NC |
7064 | |
7065 | if (segment->p_type == PT_NULL) | |
7066 | continue; | |
c044fabd | 7067 | |
9f17e2a6 | 7068 | first_section = NULL; |
bc67d8a6 | 7069 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7070 | for (section = ibfd->sections, section_count = 0; |
7071 | section != NULL; | |
7072 | section = section->next) | |
9f17e2a6 L |
7073 | { |
7074 | /* Find the first section in the input segment, which may be | |
7075 | removed from the corresponding output segment. */ | |
502794d4 | 7076 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb)) |
9f17e2a6 L |
7077 | { |
7078 | if (first_section == NULL) | |
7079 | first_section = section; | |
7080 | if (section->output_section != NULL) | |
7081 | ++section_count; | |
7082 | } | |
7083 | } | |
811072d8 | 7084 | |
b5f852ea NC |
7085 | /* Allocate a segment map big enough to contain |
7086 | all of the sections we have selected. */ | |
00bee008 | 7087 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7088 | amt += section_count * sizeof (asection *); |
a50b1753 | 7089 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7090 | if (map == NULL) |
0a1b45a2 | 7091 | return false; |
252b5132 RH |
7092 | |
7093 | /* Initialise the fields of the segment map. Default to | |
7094 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7095 | map->next = NULL; |
7096 | map->p_type = segment->p_type; | |
7097 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7098 | map->p_flags_valid = 1; |
55d55ac7 | 7099 | |
c410035d AM |
7100 | if (map->p_type == PT_LOAD |
7101 | && (ibfd->flags & D_PAGED) != 0 | |
7102 | && maxpagesize > 1 | |
7103 | && segment->p_align > 1) | |
7104 | { | |
7105 | map->p_align = segment->p_align; | |
7106 | if (segment->p_align > maxpagesize) | |
7107 | map->p_align = maxpagesize; | |
7108 | map->p_align_valid = 1; | |
7109 | } | |
7110 | ||
9f17e2a6 L |
7111 | /* If the first section in the input segment is removed, there is |
7112 | no need to preserve segment physical address in the corresponding | |
7113 | output segment. */ | |
945c025a | 7114 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7115 | { |
7116 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7117 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7118 | } |
252b5132 RH |
7119 | |
7120 | /* Determine if this segment contains the ELF file header | |
7121 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7122 | map->includes_filehdr = (segment->p_offset == 0 |
7123 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7124 | map->includes_phdrs = 0; |
252b5132 | 7125 | |
0067a569 | 7126 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7127 | { |
bc67d8a6 NC |
7128 | map->includes_phdrs = |
7129 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7130 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7131 | >= ((bfd_vma) iehdr->e_phoff |
7132 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7133 | |
bc67d8a6 | 7134 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
0a1b45a2 | 7135 | phdr_included = true; |
252b5132 RH |
7136 | } |
7137 | ||
bc67d8a6 | 7138 | if (section_count == 0) |
252b5132 RH |
7139 | { |
7140 | /* Special segments, such as the PT_PHDR segment, may contain | |
7141 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7142 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7143 | a warning is produced. |
f98450c6 NC |
7144 | There is however the valid use case of embedded systems which |
7145 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7146 | flash memory with zeros. No warning is shown for that case. */ | |
7147 | if (segment->p_type == PT_LOAD | |
7148 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7149 | /* xgettext:c-format */ | |
9793eb77 AM |
7150 | _bfd_error_handler |
7151 | (_("%pB: warning: empty loadable segment detected" | |
7152 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7153 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7154 | |
502794d4 | 7155 | map->p_vaddr_offset = segment->p_vaddr / opb; |
bc67d8a6 | 7156 | map->count = 0; |
c044fabd KH |
7157 | *pointer_to_map = map; |
7158 | pointer_to_map = &map->next; | |
252b5132 RH |
7159 | |
7160 | continue; | |
7161 | } | |
7162 | ||
7163 | /* Now scan the sections in the input BFD again and attempt | |
7164 | to add their corresponding output sections to the segment map. | |
7165 | The problem here is how to handle an output section which has | |
7166 | been moved (ie had its LMA changed). There are four possibilities: | |
7167 | ||
7168 | 1. None of the sections have been moved. | |
7169 | In this case we can continue to use the segment LMA from the | |
7170 | input BFD. | |
7171 | ||
7172 | 2. All of the sections have been moved by the same amount. | |
7173 | In this case we can change the segment's LMA to match the LMA | |
7174 | of the first section. | |
7175 | ||
7176 | 3. Some of the sections have been moved, others have not. | |
7177 | In this case those sections which have not been moved can be | |
7178 | placed in the current segment which will have to have its size, | |
7179 | and possibly its LMA changed, and a new segment or segments will | |
7180 | have to be created to contain the other sections. | |
7181 | ||
b5f852ea | 7182 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7183 | In this case we can change the segment's LMA to match the LMA |
7184 | of the first section and we will have to create a new segment | |
7185 | or segments to contain the other sections. | |
7186 | ||
7187 | In order to save time, we allocate an array to hold the section | |
7188 | pointers that we are interested in. As these sections get assigned | |
7189 | to a segment, they are removed from this array. */ | |
7190 | ||
446f7ed5 AM |
7191 | amt = section_count * sizeof (asection *); |
7192 | sections = (asection **) bfd_malloc (amt); | |
252b5132 | 7193 | if (sections == NULL) |
0a1b45a2 | 7194 | return false; |
252b5132 RH |
7195 | |
7196 | /* Step One: Scan for segment vs section LMA conflicts. | |
7197 | Also add the sections to the section array allocated above. | |
7198 | Also add the sections to the current segment. In the common | |
7199 | case, where the sections have not been moved, this means that | |
7200 | we have completely filled the segment, and there is nothing | |
7201 | more to do. */ | |
252b5132 | 7202 | isec = 0; |
9933dc52 AM |
7203 | matching_lma = NULL; |
7204 | suggested_lma = NULL; | |
252b5132 | 7205 | |
461c4b2e | 7206 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7207 | section != NULL; |
7208 | section = section->next) | |
252b5132 | 7209 | { |
502794d4 | 7210 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed, opb)) |
c0f7859b | 7211 | { |
bc67d8a6 NC |
7212 | output_section = section->output_section; |
7213 | ||
0067a569 | 7214 | sections[j++] = section; |
252b5132 RH |
7215 | |
7216 | /* The Solaris native linker always sets p_paddr to 0. | |
7217 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7218 | correct value. Note - some backends require that |
7219 | p_paddr be left as zero. */ | |
5c44b38e | 7220 | if (!p_paddr_valid |
4455705d | 7221 | && segment->p_vaddr != 0 |
0067a569 | 7222 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7223 | && isec == 0 |
bc67d8a6 | 7224 | && output_section->lma != 0 |
9933dc52 AM |
7225 | && (align_power (segment->p_vaddr |
7226 | + (map->includes_filehdr | |
7227 | ? iehdr->e_ehsize : 0) | |
7228 | + (map->includes_phdrs | |
7229 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7230 | : 0), | |
66631823 CE |
7231 | output_section->alignment_power * opb) |
7232 | == (output_section->vma * opb))) | |
bc67d8a6 | 7233 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7234 | |
7235 | /* Match up the physical address of the segment with the | |
7236 | LMA address of the output section. */ | |
502794d4 CE |
7237 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7238 | opb) | |
5e8d7549 | 7239 | || IS_COREFILE_NOTE (segment, section) |
0067a569 | 7240 | || (bed->want_p_paddr_set_to_zero |
502794d4 | 7241 | && IS_CONTAINED_BY_VMA (output_section, segment, opb))) |
252b5132 | 7242 | { |
9933dc52 AM |
7243 | if (matching_lma == NULL |
7244 | || output_section->lma < matching_lma->lma) | |
7245 | matching_lma = output_section; | |
252b5132 RH |
7246 | |
7247 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7248 | then it does not overlap any other section within that |
252b5132 | 7249 | segment. */ |
0067a569 AM |
7250 | map->sections[isec++] = output_section; |
7251 | } | |
9933dc52 AM |
7252 | else if (suggested_lma == NULL) |
7253 | suggested_lma = output_section; | |
147d51c2 L |
7254 | |
7255 | if (j == section_count) | |
7256 | break; | |
252b5132 RH |
7257 | } |
7258 | } | |
7259 | ||
bc67d8a6 | 7260 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7261 | |
7262 | /* Step Two: Adjust the physical address of the current segment, | |
7263 | if necessary. */ | |
bc67d8a6 | 7264 | if (isec == section_count) |
252b5132 RH |
7265 | { |
7266 | /* All of the sections fitted within the segment as currently | |
7267 | specified. This is the default case. Add the segment to | |
7268 | the list of built segments and carry on to process the next | |
7269 | program header in the input BFD. */ | |
bc67d8a6 | 7270 | map->count = section_count; |
c044fabd KH |
7271 | *pointer_to_map = map; |
7272 | pointer_to_map = &map->next; | |
08a40648 | 7273 | |
5c44b38e | 7274 | if (p_paddr_valid |
30fe1832 AM |
7275 | && !bed->want_p_paddr_set_to_zero) |
7276 | { | |
7277 | bfd_vma hdr_size = 0; | |
7278 | if (map->includes_filehdr) | |
7279 | hdr_size = iehdr->e_ehsize; | |
7280 | if (map->includes_phdrs) | |
7281 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7282 | ||
7283 | /* Account for padding before the first section in the | |
7284 | segment. */ | |
502794d4 CE |
7285 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
7286 | - matching_lma->lma); | |
30fe1832 | 7287 | } |
08a40648 | 7288 | |
252b5132 RH |
7289 | free (sections); |
7290 | continue; | |
7291 | } | |
252b5132 RH |
7292 | else |
7293 | { | |
9933dc52 AM |
7294 | /* Change the current segment's physical address to match |
7295 | the LMA of the first section that fitted, or if no | |
7296 | section fitted, the first section. */ | |
7297 | if (matching_lma == NULL) | |
7298 | matching_lma = suggested_lma; | |
7299 | ||
66631823 | 7300 | map->p_paddr = matching_lma->lma * opb; |
72730e0c | 7301 | |
bc67d8a6 NC |
7302 | /* Offset the segment physical address from the lma |
7303 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7304 | if (map->includes_phdrs) |
010c8431 | 7305 | { |
9933dc52 AM |
7306 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7307 | ||
7308 | /* iehdr->e_phnum is just an estimate of the number | |
7309 | of program headers that we will need. Make a note | |
7310 | here of the number we used and the segment we chose | |
7311 | to hold these headers, so that we can adjust the | |
7312 | offset when we know the correct value. */ | |
7313 | phdr_adjust_num = iehdr->e_phnum; | |
7314 | phdr_adjust_seg = map; | |
010c8431 | 7315 | } |
252b5132 | 7316 | |
9933dc52 | 7317 | if (map->includes_filehdr) |
bc67d8a6 | 7318 | { |
9933dc52 AM |
7319 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7320 | map->p_paddr -= iehdr->e_ehsize; | |
7321 | /* We've subtracted off the size of headers from the | |
7322 | first section lma, but there may have been some | |
7323 | alignment padding before that section too. Try to | |
7324 | account for that by adjusting the segment lma down to | |
7325 | the same alignment. */ | |
7326 | if (segment->p_align != 0 && segment->p_align < align) | |
7327 | align = segment->p_align; | |
66631823 | 7328 | map->p_paddr &= -(align * opb); |
bc67d8a6 | 7329 | } |
252b5132 RH |
7330 | } |
7331 | ||
7332 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7333 | those that fit to the current segment and removing them from the |
252b5132 RH |
7334 | sections array; but making sure not to leave large gaps. Once all |
7335 | possible sections have been assigned to the current segment it is | |
7336 | added to the list of built segments and if sections still remain | |
7337 | to be assigned, a new segment is constructed before repeating | |
7338 | the loop. */ | |
7339 | isec = 0; | |
7340 | do | |
7341 | { | |
bc67d8a6 | 7342 | map->count = 0; |
9933dc52 | 7343 | suggested_lma = NULL; |
252b5132 RH |
7344 | |
7345 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7346 | for (j = 0; j < section_count; j++) |
252b5132 | 7347 | { |
bc67d8a6 | 7348 | section = sections[j]; |
252b5132 | 7349 | |
bc67d8a6 | 7350 | if (section == NULL) |
252b5132 RH |
7351 | continue; |
7352 | ||
bc67d8a6 | 7353 | output_section = section->output_section; |
252b5132 | 7354 | |
bc67d8a6 | 7355 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7356 | |
502794d4 CE |
7357 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7358 | opb) | |
bc67d8a6 | 7359 | || IS_COREFILE_NOTE (segment, section)) |
252b5132 | 7360 | { |
bc67d8a6 | 7361 | if (map->count == 0) |
252b5132 RH |
7362 | { |
7363 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7364 | the beginning of the segment, then something is |
7365 | wrong. */ | |
9933dc52 AM |
7366 | if (align_power (map->p_paddr |
7367 | + (map->includes_filehdr | |
7368 | ? iehdr->e_ehsize : 0) | |
7369 | + (map->includes_phdrs | |
7370 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7371 | : 0), | |
66631823 CE |
7372 | output_section->alignment_power * opb) |
7373 | != output_section->lma * opb) | |
9aea1e31 | 7374 | goto sorry; |
252b5132 RH |
7375 | } |
7376 | else | |
7377 | { | |
0067a569 | 7378 | asection *prev_sec; |
252b5132 | 7379 | |
bc67d8a6 | 7380 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7381 | |
7382 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7383 | and the start of this section is more than |
7384 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7385 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7386 | maxpagesize) |
caf47ea6 | 7387 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7388 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7389 | > output_section->lma)) |
252b5132 | 7390 | { |
9933dc52 AM |
7391 | if (suggested_lma == NULL) |
7392 | suggested_lma = output_section; | |
252b5132 RH |
7393 | |
7394 | continue; | |
7395 | } | |
7396 | } | |
7397 | ||
bc67d8a6 | 7398 | map->sections[map->count++] = output_section; |
252b5132 RH |
7399 | ++isec; |
7400 | sections[j] = NULL; | |
9933dc52 | 7401 | if (segment->p_type == PT_LOAD) |
0a1b45a2 | 7402 | section->segment_mark = true; |
0067a569 | 7403 | } |
9933dc52 AM |
7404 | else if (suggested_lma == NULL) |
7405 | suggested_lma = output_section; | |
252b5132 RH |
7406 | } |
7407 | ||
beab4532 NC |
7408 | /* PR 23932. A corrupt input file may contain sections that cannot |
7409 | be assigned to any segment - because for example they have a | |
9984857c NC |
7410 | negative size - or segments that do not contain any sections. |
7411 | But there are also valid reasons why a segment can be empty. | |
7412 | So allow a count of zero. */ | |
252b5132 RH |
7413 | |
7414 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7415 | *pointer_to_map = map; |
7416 | pointer_to_map = &map->next; | |
252b5132 | 7417 | |
bc67d8a6 | 7418 | if (isec < section_count) |
252b5132 RH |
7419 | { |
7420 | /* We still have not allocated all of the sections to | |
7421 | segments. Create a new segment here, initialise it | |
7422 | and carry on looping. */ | |
00bee008 | 7423 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7424 | amt += section_count * sizeof (asection *); |
5964fc3a | 7425 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7426 | if (map == NULL) |
5ed6aba4 NC |
7427 | { |
7428 | free (sections); | |
0a1b45a2 | 7429 | return false; |
5ed6aba4 | 7430 | } |
252b5132 RH |
7431 | |
7432 | /* Initialise the fields of the segment map. Set the physical | |
7433 | physical address to the LMA of the first section that has | |
7434 | not yet been assigned. */ | |
0067a569 AM |
7435 | map->next = NULL; |
7436 | map->p_type = segment->p_type; | |
7437 | map->p_flags = segment->p_flags; | |
7438 | map->p_flags_valid = 1; | |
66631823 | 7439 | map->p_paddr = suggested_lma->lma * opb; |
5c44b38e | 7440 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7441 | map->includes_filehdr = 0; |
0067a569 | 7442 | map->includes_phdrs = 0; |
252b5132 | 7443 | } |
9984857c NC |
7444 | |
7445 | continue; | |
7446 | sorry: | |
7447 | bfd_set_error (bfd_error_sorry); | |
7448 | free (sections); | |
0a1b45a2 | 7449 | return false; |
252b5132 | 7450 | } |
bc67d8a6 | 7451 | while (isec < section_count); |
252b5132 RH |
7452 | |
7453 | free (sections); | |
7454 | } | |
7455 | ||
12bd6957 | 7456 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7457 | |
7458 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7459 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7460 | the offset if necessary. */ |
7461 | if (phdr_adjust_seg != NULL) | |
7462 | { | |
7463 | unsigned int count; | |
c044fabd | 7464 | |
bc67d8a6 | 7465 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7466 | count++; |
252b5132 | 7467 | |
bc67d8a6 NC |
7468 | if (count > phdr_adjust_num) |
7469 | phdr_adjust_seg->p_paddr | |
7470 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7471 | |
7472 | for (map = map_first; map != NULL; map = map->next) | |
7473 | if (map->p_type == PT_PHDR) | |
7474 | { | |
7475 | bfd_vma adjust | |
7476 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7477 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7478 | break; | |
7479 | } | |
bc67d8a6 | 7480 | } |
c044fabd | 7481 | |
bc67d8a6 | 7482 | #undef SEGMENT_END |
eecdbe52 | 7483 | #undef SECTION_SIZE |
bc67d8a6 NC |
7484 | #undef IS_CONTAINED_BY_VMA |
7485 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7486 | #undef IS_NOTE |
252b5132 | 7487 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7488 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7489 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7490 | #undef INCLUDE_SECTION_IN_SEGMENT |
7491 | #undef SEGMENT_AFTER_SEGMENT | |
7492 | #undef SEGMENT_OVERLAPS | |
0a1b45a2 | 7493 | return true; |
252b5132 RH |
7494 | } |
7495 | ||
84d1d650 L |
7496 | /* Copy ELF program header information. */ |
7497 | ||
0a1b45a2 | 7498 | static bool |
84d1d650 L |
7499 | copy_elf_program_header (bfd *ibfd, bfd *obfd) |
7500 | { | |
7501 | Elf_Internal_Ehdr *iehdr; | |
7502 | struct elf_segment_map *map; | |
7503 | struct elf_segment_map *map_first; | |
7504 | struct elf_segment_map **pointer_to_map; | |
7505 | Elf_Internal_Phdr *segment; | |
7506 | unsigned int i; | |
7507 | unsigned int num_segments; | |
0a1b45a2 AM |
7508 | bool phdr_included = false; |
7509 | bool p_paddr_valid; | |
502794d4 | 7510 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
84d1d650 L |
7511 | |
7512 | iehdr = elf_elfheader (ibfd); | |
7513 | ||
7514 | map_first = NULL; | |
7515 | pointer_to_map = &map_first; | |
7516 | ||
88967714 AM |
7517 | /* If all the segment p_paddr fields are zero, don't set |
7518 | map->p_paddr_valid. */ | |
0a1b45a2 | 7519 | p_paddr_valid = false; |
84d1d650 | 7520 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7521 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7522 | i < num_segments; | |
7523 | i++, segment++) | |
7524 | if (segment->p_paddr != 0) | |
7525 | { | |
0a1b45a2 | 7526 | p_paddr_valid = true; |
88967714 AM |
7527 | break; |
7528 | } | |
7529 | ||
84d1d650 L |
7530 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7531 | i < num_segments; | |
7532 | i++, segment++) | |
7533 | { | |
7534 | asection *section; | |
7535 | unsigned int section_count; | |
986f0783 | 7536 | size_t amt; |
84d1d650 | 7537 | Elf_Internal_Shdr *this_hdr; |
53020534 | 7538 | asection *first_section = NULL; |
a76e6f2f | 7539 | asection *lowest_section; |
84d1d650 | 7540 | |
84d1d650 L |
7541 | /* Compute how many sections are in this segment. */ |
7542 | for (section = ibfd->sections, section_count = 0; | |
7543 | section != NULL; | |
7544 | section = section->next) | |
7545 | { | |
7546 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7547 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7548 | { |
a76e6f2f AM |
7549 | if (first_section == NULL) |
7550 | first_section = section; | |
3271a814 NS |
7551 | section_count++; |
7552 | } | |
84d1d650 L |
7553 | } |
7554 | ||
7555 | /* Allocate a segment map big enough to contain | |
7556 | all of the sections we have selected. */ | |
00bee008 | 7557 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
986f0783 | 7558 | amt += section_count * sizeof (asection *); |
a50b1753 | 7559 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 | 7560 | if (map == NULL) |
0a1b45a2 | 7561 | return false; |
84d1d650 L |
7562 | |
7563 | /* Initialize the fields of the output segment map with the | |
7564 | input segment. */ | |
7565 | map->next = NULL; | |
7566 | map->p_type = segment->p_type; | |
7567 | map->p_flags = segment->p_flags; | |
7568 | map->p_flags_valid = 1; | |
7569 | map->p_paddr = segment->p_paddr; | |
88967714 | 7570 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7571 | map->p_align = segment->p_align; |
7572 | map->p_align_valid = 1; | |
3271a814 | 7573 | map->p_vaddr_offset = 0; |
84d1d650 | 7574 | |
04c3a755 NS |
7575 | if (map->p_type == PT_GNU_RELRO |
7576 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7577 | { |
7578 | /* The PT_GNU_RELRO segment may contain the first a few | |
7579 | bytes in the .got.plt section even if the whole .got.plt | |
7580 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7581 | change the size of the PT_GNU_RELRO segment. |
7582 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7583 | systems. */ | |
9433b9b1 | 7584 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7585 | map->p_size_valid = 1; |
7586 | } | |
7587 | ||
84d1d650 L |
7588 | /* Determine if this segment contains the ELF file header |
7589 | and if it contains the program headers themselves. */ | |
7590 | map->includes_filehdr = (segment->p_offset == 0 | |
7591 | && segment->p_filesz >= iehdr->e_ehsize); | |
7592 | ||
7593 | map->includes_phdrs = 0; | |
7594 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7595 | { | |
7596 | map->includes_phdrs = | |
7597 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7598 | && (segment->p_offset + segment->p_filesz | |
7599 | >= ((bfd_vma) iehdr->e_phoff | |
7600 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7601 | ||
7602 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
0a1b45a2 | 7603 | phdr_included = true; |
84d1d650 L |
7604 | } |
7605 | ||
bbefd0a9 | 7606 | lowest_section = NULL; |
84d1d650 L |
7607 | if (section_count != 0) |
7608 | { | |
7609 | unsigned int isec = 0; | |
7610 | ||
53020534 | 7611 | for (section = first_section; |
84d1d650 L |
7612 | section != NULL; |
7613 | section = section->next) | |
7614 | { | |
7615 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7616 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7617 | { |
7618 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7619 | if ((section->flags & SEC_ALLOC) != 0) |
7620 | { | |
7621 | bfd_vma seg_off; | |
7622 | ||
bbefd0a9 AM |
7623 | if (lowest_section == NULL |
7624 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7625 | lowest_section = section; |
7626 | ||
a76e6f2f AM |
7627 | /* Section lmas are set up from PT_LOAD header |
7628 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7629 | If this header has a p_paddr that disagrees | |
7630 | with the section lma, flag the p_paddr as | |
7631 | invalid. */ | |
7632 | if ((section->flags & SEC_LOAD) != 0) | |
7633 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7634 | else | |
7635 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
502794d4 | 7636 | if (section->lma * opb - segment->p_paddr != seg_off) |
0a1b45a2 | 7637 | map->p_paddr_valid = false; |
a76e6f2f | 7638 | } |
53020534 L |
7639 | if (isec == section_count) |
7640 | break; | |
7641 | } | |
84d1d650 L |
7642 | } |
7643 | } | |
7644 | ||
5d695627 | 7645 | if (section_count == 0) |
502794d4 | 7646 | map->p_vaddr_offset = segment->p_vaddr / opb; |
30fe1832 AM |
7647 | else if (map->p_paddr_valid) |
7648 | { | |
7649 | /* Account for padding before the first section in the segment. */ | |
7650 | bfd_vma hdr_size = 0; | |
7651 | if (map->includes_filehdr) | |
7652 | hdr_size = iehdr->e_ehsize; | |
7653 | if (map->includes_phdrs) | |
7654 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7655 | ||
502794d4 | 7656 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
30fe1832 AM |
7657 | - (lowest_section ? lowest_section->lma : 0)); |
7658 | } | |
a76e6f2f | 7659 | |
84d1d650 L |
7660 | map->count = section_count; |
7661 | *pointer_to_map = map; | |
7662 | pointer_to_map = &map->next; | |
7663 | } | |
7664 | ||
12bd6957 | 7665 | elf_seg_map (obfd) = map_first; |
0a1b45a2 | 7666 | return true; |
84d1d650 L |
7667 | } |
7668 | ||
7669 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7670 | information. */ | |
7671 | ||
0a1b45a2 | 7672 | static bool |
84d1d650 L |
7673 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
7674 | { | |
c410035d AM |
7675 | bfd_vma maxpagesize; |
7676 | ||
84d1d650 L |
7677 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7678 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 7679 | return true; |
84d1d650 L |
7680 | |
7681 | if (elf_tdata (ibfd)->phdr == NULL) | |
0a1b45a2 | 7682 | return true; |
84d1d650 L |
7683 | |
7684 | if (ibfd->xvec == obfd->xvec) | |
7685 | { | |
cb3ff1e5 NC |
7686 | /* Check to see if any sections in the input BFD |
7687 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7688 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7689 | asection *section, *osec; |
7690 | unsigned int i, num_segments; | |
7691 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7692 | const struct elf_backend_data *bed; |
7693 | ||
7694 | bed = get_elf_backend_data (ibfd); | |
7695 | ||
7696 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7697 | if (bed->want_p_paddr_set_to_zero) | |
7698 | goto rewrite; | |
84d1d650 L |
7699 | |
7700 | /* Initialize the segment mark field. */ | |
7701 | for (section = obfd->sections; section != NULL; | |
7702 | section = section->next) | |
0a1b45a2 | 7703 | section->segment_mark = false; |
84d1d650 L |
7704 | |
7705 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7706 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7707 | i < num_segments; | |
7708 | i++, segment++) | |
7709 | { | |
5f6999aa NC |
7710 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7711 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7712 | which severly confuses things, so always regenerate the segment | |
7713 | map in this case. */ | |
7714 | if (segment->p_paddr == 0 | |
7715 | && segment->p_memsz == 0 | |
7716 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7717 | goto rewrite; |
5f6999aa | 7718 | |
84d1d650 L |
7719 | for (section = ibfd->sections; |
7720 | section != NULL; section = section->next) | |
7721 | { | |
7722 | /* We mark the output section so that we know it comes | |
7723 | from the input BFD. */ | |
7724 | osec = section->output_section; | |
7725 | if (osec) | |
0a1b45a2 | 7726 | osec->segment_mark = true; |
84d1d650 L |
7727 | |
7728 | /* Check if this section is covered by the segment. */ | |
7729 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7730 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7731 | { |
7732 | /* FIXME: Check if its output section is changed or | |
7733 | removed. What else do we need to check? */ | |
7734 | if (osec == NULL | |
7735 | || section->flags != osec->flags | |
7736 | || section->lma != osec->lma | |
7737 | || section->vma != osec->vma | |
7738 | || section->size != osec->size | |
7739 | || section->rawsize != osec->rawsize | |
7740 | || section->alignment_power != osec->alignment_power) | |
7741 | goto rewrite; | |
7742 | } | |
7743 | } | |
7744 | } | |
7745 | ||
cb3ff1e5 | 7746 | /* Check to see if any output section do not come from the |
84d1d650 L |
7747 | input BFD. */ |
7748 | for (section = obfd->sections; section != NULL; | |
7749 | section = section->next) | |
7750 | { | |
535b785f | 7751 | if (!section->segment_mark) |
84d1d650 L |
7752 | goto rewrite; |
7753 | else | |
0a1b45a2 | 7754 | section->segment_mark = false; |
84d1d650 L |
7755 | } |
7756 | ||
7757 | return copy_elf_program_header (ibfd, obfd); | |
7758 | } | |
7759 | ||
dc1e8a47 | 7760 | rewrite: |
c410035d | 7761 | maxpagesize = 0; |
f1d85785 L |
7762 | if (ibfd->xvec == obfd->xvec) |
7763 | { | |
7764 | /* When rewriting program header, set the output maxpagesize to | |
7765 | the maximum alignment of input PT_LOAD segments. */ | |
7766 | Elf_Internal_Phdr *segment; | |
7767 | unsigned int i; | |
7768 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
f1d85785 L |
7769 | |
7770 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7771 | i < num_segments; | |
7772 | i++, segment++) | |
7773 | if (segment->p_type == PT_LOAD | |
7774 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7775 | { |
7776 | /* PR 17512: file: f17299af. */ | |
7777 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7778 | /* xgettext:c-format */ |
2dcf00ce AM |
7779 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7780 | PRIx64 " is too large"), | |
7781 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7782 | else |
7783 | maxpagesize = segment->p_align; | |
7784 | } | |
f1d85785 | 7785 | } |
c410035d AM |
7786 | if (maxpagesize == 0) |
7787 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; | |
f1d85785 | 7788 | |
c410035d | 7789 | return rewrite_elf_program_header (ibfd, obfd, maxpagesize); |
84d1d650 L |
7790 | } |
7791 | ||
ccd2ec6a L |
7792 | /* Initialize private output section information from input section. */ |
7793 | ||
0a1b45a2 | 7794 | bool |
ccd2ec6a L |
7795 | _bfd_elf_init_private_section_data (bfd *ibfd, |
7796 | asection *isec, | |
7797 | bfd *obfd, | |
7798 | asection *osec, | |
7799 | struct bfd_link_info *link_info) | |
7800 | ||
7801 | { | |
7802 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0a1b45a2 AM |
7803 | bool final_link = (link_info != NULL |
7804 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7805 | |
7806 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7807 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
0a1b45a2 | 7808 | return true; |
ccd2ec6a | 7809 | |
ba85c43e NC |
7810 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7811 | ||
8c803a2d AM |
7812 | /* If this is a known ABI section, ELF section type and flags may |
7813 | have been set up when OSEC was created. For normal sections we | |
7814 | allow the user to override the type and flags other than | |
7815 | SHF_MASKOS and SHF_MASKPROC. */ | |
7816 | if (elf_section_type (osec) == SHT_PROGBITS | |
7817 | || elf_section_type (osec) == SHT_NOTE | |
7818 | || elf_section_type (osec) == SHT_NOBITS) | |
7819 | elf_section_type (osec) = SHT_NULL; | |
7820 | /* For objcopy and relocatable link, copy the ELF section type from | |
7821 | the input file if the BFD section flags are the same. (If they | |
7822 | are different the user may be doing something like | |
7823 | "objcopy --set-section-flags .text=alloc,data".) For a final | |
7824 | link allow some flags that the linker clears to differ. */ | |
42bb2e33 | 7825 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7826 | && (osec->flags == isec->flags |
7827 | || (final_link | |
7828 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7829 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7830 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7831 | |
7832 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
8c803a2d AM |
7833 | elf_section_flags (osec) = (elf_section_flags (isec) |
7834 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7835 | |
a91e1603 | 7836 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7837 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7838 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7839 | elf_section_data (osec)->this_hdr.sh_info |
7840 | = elf_section_data (isec)->this_hdr.sh_info; | |
7841 | ||
ccd2ec6a L |
7842 | /* Set things up for objcopy and relocatable link. The output |
7843 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7844 | to the input group members. Ignore linker created group section. | |
7845 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7846 | if ((link_info == NULL |
7847 | || !link_info->resolve_section_groups) | |
7848 | && (elf_sec_group (isec) == NULL | |
7849 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7850 | { |
7bdf4127 AB |
7851 | if (elf_section_flags (isec) & SHF_GROUP) |
7852 | elf_section_flags (osec) |= SHF_GROUP; | |
7853 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7854 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7855 | } |
7856 | ||
7bdf4127 AB |
7857 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7858 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7859 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7860 | & SHF_COMPRESSED); | |
7861 | ||
ccd2ec6a L |
7862 | ihdr = &elf_section_data (isec)->this_hdr; |
7863 | ||
7864 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7865 | don't use the output section of the linked-to section since it | |
7866 | may be NULL at this point. */ | |
7867 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7868 | { | |
7869 | ohdr = &elf_section_data (osec)->this_hdr; | |
7870 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7871 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7872 | } | |
7873 | ||
7874 | osec->use_rela_p = isec->use_rela_p; | |
7875 | ||
0a1b45a2 | 7876 | return true; |
ccd2ec6a L |
7877 | } |
7878 | ||
252b5132 RH |
7879 | /* Copy private section information. This copies over the entsize |
7880 | field, and sometimes the info field. */ | |
7881 | ||
0a1b45a2 | 7882 | bool |
217aa764 AM |
7883 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7884 | asection *isec, | |
7885 | bfd *obfd, | |
7886 | asection *osec) | |
252b5132 RH |
7887 | { |
7888 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7889 | ||
7890 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7891 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
0a1b45a2 | 7892 | return true; |
252b5132 | 7893 | |
252b5132 RH |
7894 | ihdr = &elf_section_data (isec)->this_hdr; |
7895 | ohdr = &elf_section_data (osec)->this_hdr; | |
7896 | ||
7897 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7898 | ||
7899 | if (ihdr->sh_type == SHT_SYMTAB | |
7900 | || ihdr->sh_type == SHT_DYNSYM | |
7901 | || ihdr->sh_type == SHT_GNU_verneed | |
7902 | || ihdr->sh_type == SHT_GNU_verdef) | |
7903 | ohdr->sh_info = ihdr->sh_info; | |
7904 | ||
ccd2ec6a L |
7905 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7906 | NULL); | |
252b5132 RH |
7907 | } |
7908 | ||
d0bf826b AM |
7909 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7910 | necessary if we are removing either the SHT_GROUP section or any of | |
7911 | the group member sections. DISCARDED is the value that a section's | |
7912 | output_section has if the section will be discarded, NULL when this | |
7913 | function is called from objcopy, bfd_abs_section_ptr when called | |
7914 | from the linker. */ | |
80fccad2 | 7915 | |
0a1b45a2 | 7916 | bool |
d0bf826b | 7917 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7918 | { |
30288845 AM |
7919 | asection *isec; |
7920 | ||
30288845 | 7921 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7922 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7923 | { |
7924 | asection *first = elf_next_in_group (isec); | |
7925 | asection *s = first; | |
d0bf826b AM |
7926 | bfd_size_type removed = 0; |
7927 | ||
30288845 AM |
7928 | while (s != NULL) |
7929 | { | |
415f38a6 AM |
7930 | /* If this member section is being output but the |
7931 | SHT_GROUP section is not, then clear the group info | |
7932 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7933 | if (s->output_section != discarded |
7934 | && isec->output_section == discarded) | |
30288845 AM |
7935 | { |
7936 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7937 | elf_group_name (s->output_section) = NULL; | |
7938 | } | |
3349112e | 7939 | else |
6e5e9d58 AM |
7940 | { |
7941 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
3349112e L |
7942 | if (s->output_section == discarded |
7943 | && isec->output_section != discarded) | |
7944 | { | |
7945 | /* Conversely, if the member section is not being | |
7946 | output but the SHT_GROUP section is, then adjust | |
7947 | its size. */ | |
7948 | removed += 4; | |
7949 | if (elf_sec->rel.hdr != NULL | |
7950 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7951 | removed += 4; | |
7952 | if (elf_sec->rela.hdr != NULL | |
7953 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7954 | removed += 4; | |
7955 | } | |
7956 | else | |
7957 | { | |
7958 | /* Also adjust for zero-sized relocation member | |
7959 | section. */ | |
7960 | if (elf_sec->rel.hdr != NULL | |
7961 | && elf_sec->rel.hdr->sh_size == 0) | |
7962 | removed += 4; | |
7963 | if (elf_sec->rela.hdr != NULL | |
7964 | && elf_sec->rela.hdr->sh_size == 0) | |
7965 | removed += 4; | |
7966 | } | |
6e5e9d58 | 7967 | } |
30288845 AM |
7968 | s = elf_next_in_group (s); |
7969 | if (s == first) | |
7970 | break; | |
7971 | } | |
d0bf826b AM |
7972 | if (removed != 0) |
7973 | { | |
7974 | if (discarded != NULL) | |
7975 | { | |
7976 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7977 | adjust the input section size. */ |
d0bf826b AM |
7978 | if (isec->rawsize == 0) |
7979 | isec->rawsize = isec->size; | |
7980 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7981 | if (isec->size <= 4) |
7982 | { | |
7983 | isec->size = 0; | |
7984 | isec->flags |= SEC_EXCLUDE; | |
7985 | } | |
d0bf826b AM |
7986 | } |
7987 | else | |
7988 | { | |
7989 | /* Adjust the output section size when called from | |
7990 | objcopy. */ | |
7991 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7992 | if (isec->output_section->size <= 4) |
7993 | { | |
7994 | isec->output_section->size = 0; | |
7995 | isec->output_section->flags |= SEC_EXCLUDE; | |
7996 | } | |
d0bf826b AM |
7997 | } |
7998 | } | |
30288845 AM |
7999 | } |
8000 | ||
0a1b45a2 | 8001 | return true; |
80fccad2 BW |
8002 | } |
8003 | ||
d0bf826b AM |
8004 | /* Copy private header information. */ |
8005 | ||
0a1b45a2 | 8006 | bool |
d0bf826b AM |
8007 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) |
8008 | { | |
8009 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8010 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 8011 | return true; |
d0bf826b AM |
8012 | |
8013 | /* Copy over private BFD data if it has not already been copied. | |
8014 | This must be done here, rather than in the copy_private_bfd_data | |
8015 | entry point, because the latter is called after the section | |
8016 | contents have been set, which means that the program headers have | |
8017 | already been worked out. */ | |
12bd6957 | 8018 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
8019 | { |
8020 | if (! copy_private_bfd_data (ibfd, obfd)) | |
0a1b45a2 | 8021 | return false; |
d0bf826b AM |
8022 | } |
8023 | ||
8024 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
8025 | } | |
8026 | ||
252b5132 RH |
8027 | /* Copy private symbol information. If this symbol is in a section |
8028 | which we did not map into a BFD section, try to map the section | |
8029 | index correctly. We use special macro definitions for the mapped | |
8030 | section indices; these definitions are interpreted by the | |
8031 | swap_out_syms function. */ | |
8032 | ||
9ad5cbcf AM |
8033 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
8034 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
8035 | #define MAP_STRTAB (SHN_HIOS + 3) | |
8036 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
8037 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 8038 | |
0a1b45a2 | 8039 | bool |
217aa764 AM |
8040 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
8041 | asymbol *isymarg, | |
8042 | bfd *obfd, | |
8043 | asymbol *osymarg) | |
252b5132 RH |
8044 | { |
8045 | elf_symbol_type *isym, *osym; | |
8046 | ||
8047 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8048 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 8049 | return true; |
252b5132 | 8050 | |
c1229f84 AM |
8051 | isym = elf_symbol_from (isymarg); |
8052 | osym = elf_symbol_from (osymarg); | |
252b5132 RH |
8053 | |
8054 | if (isym != NULL | |
8424d8f5 | 8055 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
8056 | && osym != NULL |
8057 | && bfd_is_abs_section (isym->symbol.section)) | |
8058 | { | |
8059 | unsigned int shndx; | |
8060 | ||
8061 | shndx = isym->internal_elf_sym.st_shndx; | |
8062 | if (shndx == elf_onesymtab (ibfd)) | |
8063 | shndx = MAP_ONESYMTAB; | |
8064 | else if (shndx == elf_dynsymtab (ibfd)) | |
8065 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 8066 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 8067 | shndx = MAP_STRTAB; |
12bd6957 | 8068 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 8069 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 8070 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 8071 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
8072 | osym->internal_elf_sym.st_shndx = shndx; |
8073 | } | |
8074 | ||
0a1b45a2 | 8075 | return true; |
252b5132 RH |
8076 | } |
8077 | ||
8078 | /* Swap out the symbols. */ | |
8079 | ||
0a1b45a2 | 8080 | static bool |
217aa764 | 8081 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8082 | struct elf_strtab_hash **sttp, |
3d16b64e NA |
8083 | int relocatable_p, |
8084 | struct bfd_link_info *info) | |
252b5132 | 8085 | { |
9c5bfbb7 | 8086 | const struct elf_backend_data *bed; |
1f4361a7 | 8087 | unsigned int symcount; |
079e9a2f | 8088 | asymbol **syms; |
ef10c3ac | 8089 | struct elf_strtab_hash *stt; |
079e9a2f | 8090 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8091 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8092 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8093 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8094 | bfd_byte *outbound_syms; |
8095 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
8096 | unsigned long outbound_syms_index; |
8097 | unsigned long outbound_shndx_index; | |
1f4361a7 | 8098 | unsigned int idx; |
12bd6957 | 8099 | unsigned int num_locals; |
1f4361a7 | 8100 | size_t amt; |
0a1b45a2 | 8101 | bool name_local_sections; |
252b5132 | 8102 | |
12bd6957 | 8103 | if (!elf_map_symbols (abfd, &num_locals)) |
0a1b45a2 | 8104 | return false; |
252b5132 | 8105 | |
c044fabd | 8106 | /* Dump out the symtabs. */ |
ef10c3ac | 8107 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8108 | if (stt == NULL) |
0a1b45a2 | 8109 | return false; |
252b5132 | 8110 | |
079e9a2f AM |
8111 | bed = get_elf_backend_data (abfd); |
8112 | symcount = bfd_get_symcount (abfd); | |
8113 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8114 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8115 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8116 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8117 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8118 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8119 | |
8120 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8121 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8122 | ||
ef10c3ac | 8123 | /* Allocate buffer to swap out the .strtab section. */ |
1f4361a7 AM |
8124 | if (_bfd_mul_overflow (symcount + 1, sizeof (*symstrtab), &amt) |
8125 | || (symstrtab = (struct elf_sym_strtab *) bfd_malloc (amt)) == NULL) | |
ef10c3ac | 8126 | { |
1f4361a7 | 8127 | bfd_set_error (bfd_error_no_memory); |
ef10c3ac | 8128 | _bfd_elf_strtab_free (stt); |
0a1b45a2 | 8129 | return false; |
ef10c3ac L |
8130 | } |
8131 | ||
1f4361a7 AM |
8132 | if (_bfd_mul_overflow (symcount + 1, bed->s->sizeof_sym, &amt) |
8133 | || (outbound_syms = (bfd_byte *) bfd_alloc (abfd, amt)) == NULL) | |
5ed6aba4 | 8134 | { |
1f4361a7 AM |
8135 | error_no_mem: |
8136 | bfd_set_error (bfd_error_no_memory); | |
8137 | error_return: | |
ef10c3ac | 8138 | free (symstrtab); |
1f4361a7 | 8139 | _bfd_elf_strtab_free (stt); |
0a1b45a2 | 8140 | return false; |
5ed6aba4 | 8141 | } |
217aa764 | 8142 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8143 | outbound_syms_index = 0; |
252b5132 | 8144 | |
9ad5cbcf | 8145 | outbound_shndx = NULL; |
ef10c3ac | 8146 | outbound_shndx_index = 0; |
6a40cf0c NC |
8147 | |
8148 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8149 | { |
6a40cf0c NC |
8150 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8151 | if (symtab_shndx_hdr->sh_name != 0) | |
8152 | { | |
1f4361a7 AM |
8153 | if (_bfd_mul_overflow (symcount + 1, |
8154 | sizeof (Elf_External_Sym_Shndx), &amt)) | |
8155 | goto error_no_mem; | |
8156 | outbound_shndx = (bfd_byte *) bfd_zalloc (abfd, amt); | |
6a40cf0c NC |
8157 | if (outbound_shndx == NULL) |
8158 | goto error_return; | |
5ed6aba4 | 8159 | |
6a40cf0c NC |
8160 | symtab_shndx_hdr->contents = outbound_shndx; |
8161 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8162 | symtab_shndx_hdr->sh_size = amt; | |
8163 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8164 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8165 | } | |
8166 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8167 | } |
8168 | ||
589e6347 | 8169 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8170 | { |
8171 | /* Fill in zeroth symbol and swap it out. */ | |
8172 | Elf_Internal_Sym sym; | |
8173 | sym.st_name = 0; | |
8174 | sym.st_value = 0; | |
8175 | sym.st_size = 0; | |
8176 | sym.st_info = 0; | |
8177 | sym.st_other = 0; | |
8178 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8179 | sym.st_target_internal = 0; |
ef10c3ac L |
8180 | symstrtab[0].sym = sym; |
8181 | symstrtab[0].dest_index = outbound_syms_index; | |
8182 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8183 | outbound_syms_index++; | |
9ad5cbcf | 8184 | if (outbound_shndx != NULL) |
ef10c3ac | 8185 | outbound_shndx_index++; |
079e9a2f | 8186 | } |
252b5132 | 8187 | |
174fd7f9 RS |
8188 | name_local_sections |
8189 | = (bed->elf_backend_name_local_section_symbols | |
8190 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8191 | ||
079e9a2f | 8192 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8193 | for (idx = 0; idx < symcount;) |
252b5132 | 8194 | { |
252b5132 | 8195 | Elf_Internal_Sym sym; |
079e9a2f AM |
8196 | bfd_vma value = syms[idx]->value; |
8197 | elf_symbol_type *type_ptr; | |
8198 | flagword flags = syms[idx]->flags; | |
8199 | int type; | |
252b5132 | 8200 | |
174fd7f9 RS |
8201 | if (!name_local_sections |
8202 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8203 | { |
8204 | /* Local section symbols have no name. */ | |
ef10c3ac | 8205 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8206 | } |
8207 | else | |
8208 | { | |
ef10c3ac L |
8209 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8210 | to get the final offset for st_name. */ | |
8211 | sym.st_name | |
8212 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
0a1b45a2 | 8213 | false); |
079e9a2f | 8214 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8215 | goto error_return; |
079e9a2f | 8216 | } |
252b5132 | 8217 | |
c1229f84 | 8218 | type_ptr = elf_symbol_from (syms[idx]); |
252b5132 | 8219 | |
079e9a2f AM |
8220 | if ((flags & BSF_SECTION_SYM) == 0 |
8221 | && bfd_is_com_section (syms[idx]->section)) | |
8222 | { | |
8223 | /* ELF common symbols put the alignment into the `value' field, | |
8224 | and the size into the `size' field. This is backwards from | |
8225 | how BFD handles it, so reverse it here. */ | |
8226 | sym.st_size = value; | |
8227 | if (type_ptr == NULL | |
8228 | || type_ptr->internal_elf_sym.st_value == 0) | |
8229 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8230 | else | |
8231 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8232 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8233 | (abfd, syms[idx]->section); | |
8234 | } | |
8235 | else | |
8236 | { | |
8237 | asection *sec = syms[idx]->section; | |
cb33740c | 8238 | unsigned int shndx; |
252b5132 | 8239 | |
079e9a2f AM |
8240 | if (sec->output_section) |
8241 | { | |
8242 | value += sec->output_offset; | |
8243 | sec = sec->output_section; | |
8244 | } | |
589e6347 | 8245 | |
079e9a2f AM |
8246 | /* Don't add in the section vma for relocatable output. */ |
8247 | if (! relocatable_p) | |
8248 | value += sec->vma; | |
8249 | sym.st_value = value; | |
8250 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8251 | ||
8252 | if (bfd_is_abs_section (sec) | |
8253 | && type_ptr != NULL | |
8254 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8255 | { | |
8256 | /* This symbol is in a real ELF section which we did | |
8257 | not create as a BFD section. Undo the mapping done | |
8258 | by copy_private_symbol_data. */ | |
8259 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8260 | switch (shndx) | |
8261 | { | |
8262 | case MAP_ONESYMTAB: | |
8263 | shndx = elf_onesymtab (abfd); | |
8264 | break; | |
8265 | case MAP_DYNSYMTAB: | |
8266 | shndx = elf_dynsymtab (abfd); | |
8267 | break; | |
8268 | case MAP_STRTAB: | |
12bd6957 | 8269 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8270 | break; |
8271 | case MAP_SHSTRTAB: | |
12bd6957 | 8272 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8273 | break; |
9ad5cbcf | 8274 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8275 | if (elf_symtab_shndx_list (abfd)) |
8276 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8277 | break; |
00e49dff NC |
8278 | case SHN_COMMON: |
8279 | case SHN_ABS: | |
15bc576a | 8280 | shndx = SHN_ABS; |
079e9a2f | 8281 | break; |
00e49dff NC |
8282 | default: |
8283 | if (shndx >= SHN_LOPROC && shndx <= SHN_HIOS) | |
8284 | { | |
8285 | if (bed->symbol_section_index) | |
8286 | shndx = bed->symbol_section_index (abfd, type_ptr); | |
8287 | /* Otherwise just leave the index alone. */ | |
8288 | } | |
8289 | else | |
8290 | { | |
8291 | if (shndx > SHN_HIOS && shndx < SHN_HIRESERVE) | |
8292 | _bfd_error_handler (_("%pB: \ | |
8293 | Unable to handle section index %x in ELF symbol. Using ABS instead."), | |
8294 | abfd, shndx); | |
8295 | shndx = SHN_ABS; | |
8296 | } | |
8297 | break; | |
079e9a2f AM |
8298 | } |
8299 | } | |
8300 | else | |
8301 | { | |
8302 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8303 | |
cb33740c | 8304 | if (shndx == SHN_BAD) |
079e9a2f AM |
8305 | { |
8306 | asection *sec2; | |
8307 | ||
8308 | /* Writing this would be a hell of a lot easier if | |
8309 | we had some decent documentation on bfd, and | |
8310 | knew what to expect of the library, and what to | |
8311 | demand of applications. For example, it | |
8312 | appears that `objcopy' might not set the | |
8313 | section of a symbol to be a section that is | |
8314 | actually in the output file. */ | |
8315 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8316 | if (sec2 != NULL) |
8317 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8318 | if (shndx == SHN_BAD) | |
589e6347 | 8319 | { |
695344c0 | 8320 | /* xgettext:c-format */ |
9793eb77 AM |
8321 | _bfd_error_handler |
8322 | (_("unable to find equivalent output section" | |
8323 | " for symbol '%s' from section '%s'"), | |
8324 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8325 | sec->name); | |
811072d8 | 8326 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8327 | goto error_return; |
589e6347 | 8328 | } |
079e9a2f AM |
8329 | } |
8330 | } | |
252b5132 | 8331 | |
079e9a2f AM |
8332 | sym.st_shndx = shndx; |
8333 | } | |
252b5132 | 8334 | |
13ae64f3 JJ |
8335 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8336 | type = STT_TLS; | |
d8045f23 NC |
8337 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8338 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8339 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8340 | type = STT_FUNC; |
8341 | else if ((flags & BSF_OBJECT) != 0) | |
8342 | type = STT_OBJECT; | |
d9352518 DB |
8343 | else if ((flags & BSF_RELC) != 0) |
8344 | type = STT_RELC; | |
8345 | else if ((flags & BSF_SRELC) != 0) | |
8346 | type = STT_SRELC; | |
079e9a2f AM |
8347 | else |
8348 | type = STT_NOTYPE; | |
252b5132 | 8349 | |
13ae64f3 JJ |
8350 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8351 | type = STT_TLS; | |
8352 | ||
589e6347 | 8353 | /* Processor-specific types. */ |
079e9a2f AM |
8354 | if (type_ptr != NULL |
8355 | && bed->elf_backend_get_symbol_type) | |
8356 | type = ((*bed->elf_backend_get_symbol_type) | |
8357 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8358 | |
079e9a2f AM |
8359 | if (flags & BSF_SECTION_SYM) |
8360 | { | |
8361 | if (flags & BSF_GLOBAL) | |
8362 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8363 | else | |
8364 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8365 | } | |
8366 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8367 | { |
b8871f35 L |
8368 | if (type != STT_TLS) |
8369 | { | |
8370 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8371 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8372 | ? STT_COMMON : STT_OBJECT); | |
8373 | else | |
8374 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8375 | ? STT_COMMON : STT_OBJECT); | |
8376 | } | |
8377 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8378 | } |
079e9a2f AM |
8379 | else if (bfd_is_und_section (syms[idx]->section)) |
8380 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8381 | ? STB_WEAK | |
8382 | : STB_GLOBAL), | |
8383 | type); | |
8384 | else if (flags & BSF_FILE) | |
8385 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8386 | else | |
8387 | { | |
8388 | int bind = STB_LOCAL; | |
252b5132 | 8389 | |
079e9a2f AM |
8390 | if (flags & BSF_LOCAL) |
8391 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8392 | else if (flags & BSF_GNU_UNIQUE) |
8393 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8394 | else if (flags & BSF_WEAK) |
8395 | bind = STB_WEAK; | |
8396 | else if (flags & BSF_GLOBAL) | |
8397 | bind = STB_GLOBAL; | |
252b5132 | 8398 | |
079e9a2f AM |
8399 | sym.st_info = ELF_ST_INFO (bind, type); |
8400 | } | |
252b5132 | 8401 | |
079e9a2f | 8402 | if (type_ptr != NULL) |
35fc36a8 RS |
8403 | { |
8404 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8405 | sym.st_target_internal | |
8406 | = type_ptr->internal_elf_sym.st_target_internal; | |
8407 | } | |
079e9a2f | 8408 | else |
35fc36a8 RS |
8409 | { |
8410 | sym.st_other = 0; | |
8411 | sym.st_target_internal = 0; | |
8412 | } | |
252b5132 | 8413 | |
ef10c3ac L |
8414 | idx++; |
8415 | symstrtab[idx].sym = sym; | |
8416 | symstrtab[idx].dest_index = outbound_syms_index; | |
8417 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8418 | ||
8419 | outbound_syms_index++; | |
9ad5cbcf | 8420 | if (outbound_shndx != NULL) |
ef10c3ac L |
8421 | outbound_shndx_index++; |
8422 | } | |
8423 | ||
8424 | /* Finalize the .strtab section. */ | |
8425 | _bfd_elf_strtab_finalize (stt); | |
8426 | ||
8427 | /* Swap out the .strtab section. */ | |
8428 | for (idx = 0; idx <= symcount; idx++) | |
8429 | { | |
8430 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8431 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8432 | elfsym->sym.st_name = 0; | |
8433 | else | |
8434 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8435 | elfsym->sym.st_name); | |
3d16b64e NA |
8436 | if (info && info->callbacks->ctf_new_symbol) |
8437 | info->callbacks->ctf_new_symbol (elfsym->dest_index, | |
8438 | &elfsym->sym); | |
8439 | ||
8440 | /* Inform the linker of the addition of this symbol. */ | |
8441 | ||
ef10c3ac L |
8442 | bed->s->swap_symbol_out (abfd, &elfsym->sym, |
8443 | (outbound_syms | |
8444 | + (elfsym->dest_index | |
8445 | * bed->s->sizeof_sym)), | |
8446 | (outbound_shndx | |
8447 | + (elfsym->destshndx_index | |
8448 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8449 | } |
ef10c3ac | 8450 | free (symstrtab); |
252b5132 | 8451 | |
079e9a2f | 8452 | *sttp = stt; |
ef10c3ac | 8453 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8454 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8455 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8456 | symstrtab_hdr->sh_addr = 0; |
8457 | symstrtab_hdr->sh_entsize = 0; | |
8458 | symstrtab_hdr->sh_link = 0; | |
8459 | symstrtab_hdr->sh_info = 0; | |
8460 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8461 | |
0a1b45a2 | 8462 | return true; |
252b5132 RH |
8463 | } |
8464 | ||
8465 | /* Return the number of bytes required to hold the symtab vector. | |
8466 | ||
8467 | Note that we base it on the count plus 1, since we will null terminate | |
8468 | the vector allocated based on this size. However, the ELF symbol table | |
8469 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8470 | ||
8471 | long | |
217aa764 | 8472 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8473 | { |
3a551c7a | 8474 | bfd_size_type symcount; |
252b5132 RH |
8475 | long symtab_size; |
8476 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8477 | ||
8478 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8479 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8480 | { |
8481 | bfd_set_error (bfd_error_file_too_big); | |
8482 | return -1; | |
8483 | } | |
b5f386d5 AM |
8484 | symtab_size = symcount * (sizeof (asymbol *)); |
8485 | if (symcount == 0) | |
8486 | symtab_size = sizeof (asymbol *); | |
8487 | else if (!bfd_write_p (abfd)) | |
8488 | { | |
8489 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8490 | ||
8491 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8492 | { | |
8493 | bfd_set_error (bfd_error_file_truncated); | |
8494 | return -1; | |
8495 | } | |
8496 | } | |
252b5132 RH |
8497 | |
8498 | return symtab_size; | |
8499 | } | |
8500 | ||
8501 | long | |
217aa764 | 8502 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8503 | { |
3a551c7a | 8504 | bfd_size_type symcount; |
252b5132 RH |
8505 | long symtab_size; |
8506 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8507 | ||
8508 | if (elf_dynsymtab (abfd) == 0) | |
8509 | { | |
8510 | bfd_set_error (bfd_error_invalid_operation); | |
8511 | return -1; | |
8512 | } | |
8513 | ||
8514 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8515 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8516 | { |
8517 | bfd_set_error (bfd_error_file_too_big); | |
8518 | return -1; | |
8519 | } | |
b5f386d5 AM |
8520 | symtab_size = symcount * (sizeof (asymbol *)); |
8521 | if (symcount == 0) | |
8522 | symtab_size = sizeof (asymbol *); | |
8523 | else if (!bfd_write_p (abfd)) | |
8524 | { | |
8525 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8526 | ||
8527 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8528 | { | |
8529 | bfd_set_error (bfd_error_file_truncated); | |
8530 | return -1; | |
8531 | } | |
8532 | } | |
252b5132 RH |
8533 | |
8534 | return symtab_size; | |
8535 | } | |
8536 | ||
8537 | long | |
3c568b8a | 8538 | _bfd_elf_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 8539 | { |
b5f386d5 | 8540 | if (asect->reloc_count != 0 && !bfd_write_p (abfd)) |
3c568b8a AM |
8541 | { |
8542 | /* Sanity check reloc section size. */ | |
8543 | struct bfd_elf_section_data *d = elf_section_data (asect); | |
8544 | Elf_Internal_Shdr *rel_hdr = &d->this_hdr; | |
8545 | bfd_size_type ext_rel_size = rel_hdr->sh_size; | |
8546 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8547 | ||
8548 | if (filesize != 0 && ext_rel_size > filesize) | |
8549 | { | |
8550 | bfd_set_error (bfd_error_file_truncated); | |
8551 | return -1; | |
8552 | } | |
8553 | } | |
8554 | ||
242a1159 | 8555 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8556 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8557 | { | |
8558 | bfd_set_error (bfd_error_file_too_big); | |
8559 | return -1; | |
8560 | } | |
242a1159 | 8561 | #endif |
252b5132 RH |
8562 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8563 | } | |
8564 | ||
8565 | /* Canonicalize the relocs. */ | |
8566 | ||
8567 | long | |
217aa764 AM |
8568 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8569 | sec_ptr section, | |
8570 | arelent **relptr, | |
8571 | asymbol **symbols) | |
252b5132 RH |
8572 | { |
8573 | arelent *tblptr; | |
8574 | unsigned int i; | |
9c5bfbb7 | 8575 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8576 | |
0a1b45a2 | 8577 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, false)) |
252b5132 RH |
8578 | return -1; |
8579 | ||
8580 | tblptr = section->relocation; | |
8581 | for (i = 0; i < section->reloc_count; i++) | |
8582 | *relptr++ = tblptr++; | |
8583 | ||
8584 | *relptr = NULL; | |
8585 | ||
8586 | return section->reloc_count; | |
8587 | } | |
8588 | ||
8589 | long | |
6cee3f79 | 8590 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8591 | { |
9c5bfbb7 | 8592 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0a1b45a2 | 8593 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, false); |
252b5132 RH |
8594 | |
8595 | if (symcount >= 0) | |
ed48ec2e | 8596 | abfd->symcount = symcount; |
252b5132 RH |
8597 | return symcount; |
8598 | } | |
8599 | ||
8600 | long | |
217aa764 AM |
8601 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8602 | asymbol **allocation) | |
252b5132 | 8603 | { |
9c5bfbb7 | 8604 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0a1b45a2 | 8605 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, true); |
1f70368c DJ |
8606 | |
8607 | if (symcount >= 0) | |
ed48ec2e | 8608 | abfd->dynsymcount = symcount; |
1f70368c | 8609 | return symcount; |
252b5132 RH |
8610 | } |
8611 | ||
8615f3f2 AM |
8612 | /* Return the size required for the dynamic reloc entries. Any loadable |
8613 | section that was actually installed in the BFD, and has type SHT_REL | |
8614 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8615 | dynamic reloc section. */ | |
252b5132 RH |
8616 | |
8617 | long | |
217aa764 | 8618 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8619 | { |
3c568b8a | 8620 | bfd_size_type count, ext_rel_size; |
252b5132 RH |
8621 | asection *s; |
8622 | ||
8623 | if (elf_dynsymtab (abfd) == 0) | |
8624 | { | |
8625 | bfd_set_error (bfd_error_invalid_operation); | |
8626 | return -1; | |
8627 | } | |
8628 | ||
3a551c7a | 8629 | count = 1; |
3c568b8a | 8630 | ext_rel_size = 0; |
252b5132 | 8631 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8632 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8633 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8634 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a | 8635 | { |
3c568b8a AM |
8636 | ext_rel_size += s->size; |
8637 | if (ext_rel_size < s->size) | |
8638 | { | |
8639 | bfd_set_error (bfd_error_file_truncated); | |
8640 | return -1; | |
8641 | } | |
3a551c7a AM |
8642 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; |
8643 | if (count > LONG_MAX / sizeof (arelent *)) | |
8644 | { | |
8645 | bfd_set_error (bfd_error_file_too_big); | |
8646 | return -1; | |
8647 | } | |
8648 | } | |
b5f386d5 | 8649 | if (count > 1 && !bfd_write_p (abfd)) |
3c568b8a AM |
8650 | { |
8651 | /* Sanity check reloc section sizes. */ | |
8652 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8653 | if (filesize != 0 && ext_rel_size > filesize) | |
8654 | { | |
8655 | bfd_set_error (bfd_error_file_truncated); | |
8656 | return -1; | |
8657 | } | |
8658 | } | |
3a551c7a | 8659 | return count * sizeof (arelent *); |
252b5132 RH |
8660 | } |
8661 | ||
8615f3f2 AM |
8662 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8663 | dynamic relocations as a single block, although they are actually | |
8664 | associated with particular sections; the interface, which was | |
8665 | designed for SunOS style shared libraries, expects that there is only | |
8666 | one set of dynamic relocs. Any loadable section that was actually | |
8667 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8668 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8669 | |
8670 | long | |
217aa764 AM |
8671 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8672 | arelent **storage, | |
8673 | asymbol **syms) | |
252b5132 | 8674 | { |
0a1b45a2 | 8675 | bool (*slurp_relocs) (bfd *, asection *, asymbol **, bool); |
252b5132 RH |
8676 | asection *s; |
8677 | long ret; | |
8678 | ||
8679 | if (elf_dynsymtab (abfd) == 0) | |
8680 | { | |
8681 | bfd_set_error (bfd_error_invalid_operation); | |
8682 | return -1; | |
8683 | } | |
8684 | ||
8685 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8686 | ret = 0; | |
8687 | for (s = abfd->sections; s != NULL; s = s->next) | |
8688 | { | |
266b05cf | 8689 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8690 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8691 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8692 | { | |
8693 | arelent *p; | |
8694 | long count, i; | |
8695 | ||
0a1b45a2 | 8696 | if (! (*slurp_relocs) (abfd, s, syms, true)) |
252b5132 | 8697 | return -1; |
eea6121a | 8698 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8699 | p = s->relocation; |
8700 | for (i = 0; i < count; i++) | |
8701 | *storage++ = p++; | |
8702 | ret += count; | |
8703 | } | |
8704 | } | |
8705 | ||
8706 | *storage = NULL; | |
8707 | ||
8708 | return ret; | |
8709 | } | |
8710 | \f | |
8711 | /* Read in the version information. */ | |
8712 | ||
0a1b45a2 AM |
8713 | bool |
8714 | _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver) | |
252b5132 RH |
8715 | { |
8716 | bfd_byte *contents = NULL; | |
fc0e6df6 | 8717 | unsigned int freeidx = 0; |
1f4361a7 | 8718 | size_t amt; |
fc0e6df6 PB |
8719 | |
8720 | if (elf_dynverref (abfd) != 0) | |
8721 | { | |
8722 | Elf_Internal_Shdr *hdr; | |
8723 | Elf_External_Verneed *everneed; | |
8724 | Elf_Internal_Verneed *iverneed; | |
8725 | unsigned int i; | |
d0fb9a8d | 8726 | bfd_byte *contents_end; |
fc0e6df6 PB |
8727 | |
8728 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8729 | ||
bd61e135 AM |
8730 | if (hdr->sh_info == 0 |
8731 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8732 | { |
dc1e8a47 | 8733 | error_return_bad_verref: |
4eca0228 | 8734 | _bfd_error_handler |
871b3ab2 | 8735 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8736 | bfd_set_error (bfd_error_bad_value); |
dc1e8a47 | 8737 | error_return_verref: |
d0fb9a8d JJ |
8738 | elf_tdata (abfd)->verref = NULL; |
8739 | elf_tdata (abfd)->cverrefs = 0; | |
8740 | goto error_return; | |
8741 | } | |
601a03ba | 8742 | |
2bb3687b AM |
8743 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
8744 | goto error_return_verref; | |
8745 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); | |
8746 | if (contents == NULL) | |
d0fb9a8d | 8747 | goto error_return_verref; |
fc0e6df6 | 8748 | |
1f4361a7 AM |
8749 | if (_bfd_mul_overflow (hdr->sh_info, sizeof (Elf_Internal_Verneed), &amt)) |
8750 | { | |
8751 | bfd_set_error (bfd_error_file_too_big); | |
8752 | goto error_return_verref; | |
8753 | } | |
8754 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt); | |
601a03ba | 8755 | if (elf_tdata (abfd)->verref == NULL) |
d0fb9a8d JJ |
8756 | goto error_return_verref; |
8757 | ||
8758 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8759 | == sizeof (Elf_External_Vernaux)); | |
8760 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8761 | everneed = (Elf_External_Verneed *) contents; |
8762 | iverneed = elf_tdata (abfd)->verref; | |
8763 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8764 | { | |
8765 | Elf_External_Vernaux *evernaux; | |
8766 | Elf_Internal_Vernaux *ivernaux; | |
8767 | unsigned int j; | |
8768 | ||
8769 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8770 | ||
8771 | iverneed->vn_bfd = abfd; | |
8772 | ||
8773 | iverneed->vn_filename = | |
8774 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8775 | iverneed->vn_file); | |
8776 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8777 | goto error_return_bad_verref; |
fc0e6df6 | 8778 | |
d0fb9a8d JJ |
8779 | if (iverneed->vn_cnt == 0) |
8780 | iverneed->vn_auxptr = NULL; | |
8781 | else | |
8782 | { | |
1f4361a7 AM |
8783 | if (_bfd_mul_overflow (iverneed->vn_cnt, |
8784 | sizeof (Elf_Internal_Vernaux), &amt)) | |
8785 | { | |
8786 | bfd_set_error (bfd_error_file_too_big); | |
8787 | goto error_return_verref; | |
8788 | } | |
a50b1753 | 8789 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
1f4361a7 | 8790 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8791 | if (iverneed->vn_auxptr == NULL) |
8792 | goto error_return_verref; | |
8793 | } | |
8794 | ||
8795 | if (iverneed->vn_aux | |
8796 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8797 | goto error_return_bad_verref; |
fc0e6df6 PB |
8798 | |
8799 | evernaux = ((Elf_External_Vernaux *) | |
8800 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8801 | ivernaux = iverneed->vn_auxptr; | |
8802 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8803 | { | |
8804 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8805 | ||
8806 | ivernaux->vna_nodename = | |
8807 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8808 | ivernaux->vna_name); | |
8809 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8810 | goto error_return_bad_verref; |
fc0e6df6 | 8811 | |
25ff461f AM |
8812 | if (ivernaux->vna_other > freeidx) |
8813 | freeidx = ivernaux->vna_other; | |
8814 | ||
8815 | ivernaux->vna_nextptr = NULL; | |
8816 | if (ivernaux->vna_next == 0) | |
8817 | { | |
8818 | iverneed->vn_cnt = j + 1; | |
8819 | break; | |
8820 | } | |
fc0e6df6 PB |
8821 | if (j + 1 < iverneed->vn_cnt) |
8822 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8823 | |
d0fb9a8d JJ |
8824 | if (ivernaux->vna_next |
8825 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8826 | goto error_return_bad_verref; |
d0fb9a8d | 8827 | |
fc0e6df6 PB |
8828 | evernaux = ((Elf_External_Vernaux *) |
8829 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8830 | } |
8831 | ||
25ff461f AM |
8832 | iverneed->vn_nextref = NULL; |
8833 | if (iverneed->vn_next == 0) | |
8834 | break; | |
fc0e6df6 PB |
8835 | if (i + 1 < hdr->sh_info) |
8836 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8837 | |
d0fb9a8d JJ |
8838 | if (iverneed->vn_next |
8839 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8840 | goto error_return_bad_verref; |
d0fb9a8d | 8841 | |
fc0e6df6 PB |
8842 | everneed = ((Elf_External_Verneed *) |
8843 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8844 | } | |
25ff461f | 8845 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8846 | |
8847 | free (contents); | |
8848 | contents = NULL; | |
8849 | } | |
252b5132 RH |
8850 | |
8851 | if (elf_dynverdef (abfd) != 0) | |
8852 | { | |
8853 | Elf_Internal_Shdr *hdr; | |
8854 | Elf_External_Verdef *everdef; | |
8855 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8856 | Elf_Internal_Verdef *iverdefarr; |
8857 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8858 | unsigned int i; |
062e2358 | 8859 | unsigned int maxidx; |
d0fb9a8d | 8860 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8861 | |
8862 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8863 | ||
601a03ba AM |
8864 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8865 | { | |
8866 | error_return_bad_verdef: | |
4eca0228 | 8867 | _bfd_error_handler |
871b3ab2 | 8868 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8869 | bfd_set_error (bfd_error_bad_value); |
8870 | error_return_verdef: | |
8871 | elf_tdata (abfd)->verdef = NULL; | |
8872 | elf_tdata (abfd)->cverdefs = 0; | |
8873 | goto error_return; | |
8874 | } | |
8875 | ||
2bb3687b | 8876 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
601a03ba | 8877 | goto error_return_verdef; |
2bb3687b AM |
8878 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); |
8879 | if (contents == NULL) | |
601a03ba | 8880 | goto error_return_verdef; |
d0fb9a8d JJ |
8881 | |
8882 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8883 | >= sizeof (Elf_External_Verdaux)); | |
8884 | contents_end_def = contents + hdr->sh_size | |
8885 | - sizeof (Elf_External_Verdef); | |
8886 | contents_end_aux = contents + hdr->sh_size | |
8887 | - sizeof (Elf_External_Verdaux); | |
8888 | ||
f631889e UD |
8889 | /* We know the number of entries in the section but not the maximum |
8890 | index. Therefore we have to run through all entries and find | |
8891 | the maximum. */ | |
252b5132 | 8892 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8893 | maxidx = 0; |
8894 | for (i = 0; i < hdr->sh_info; ++i) | |
8895 | { | |
8896 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8897 | ||
601a03ba AM |
8898 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8899 | goto error_return_bad_verdef; | |
062e2358 AM |
8900 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8901 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8902 | |
25ff461f AM |
8903 | if (iverdefmem.vd_next == 0) |
8904 | break; | |
8905 | ||
d0fb9a8d JJ |
8906 | if (iverdefmem.vd_next |
8907 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8908 | goto error_return_bad_verdef; |
d0fb9a8d | 8909 | |
f631889e UD |
8910 | everdef = ((Elf_External_Verdef *) |
8911 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8912 | } | |
8913 | ||
fc0e6df6 PB |
8914 | if (default_imported_symver) |
8915 | { | |
8916 | if (freeidx > maxidx) | |
8917 | maxidx = ++freeidx; | |
8918 | else | |
8919 | freeidx = ++maxidx; | |
8920 | } | |
1f4361a7 AM |
8921 | if (_bfd_mul_overflow (maxidx, sizeof (Elf_Internal_Verdef), &amt)) |
8922 | { | |
8923 | bfd_set_error (bfd_error_file_too_big); | |
8924 | goto error_return_verdef; | |
8925 | } | |
8926 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e | 8927 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8928 | goto error_return_verdef; |
f631889e UD |
8929 | |
8930 | elf_tdata (abfd)->cverdefs = maxidx; | |
8931 | ||
8932 | everdef = (Elf_External_Verdef *) contents; | |
8933 | iverdefarr = elf_tdata (abfd)->verdef; | |
8934 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8935 | { |
8936 | Elf_External_Verdaux *everdaux; | |
8937 | Elf_Internal_Verdaux *iverdaux; | |
8938 | unsigned int j; | |
8939 | ||
f631889e UD |
8940 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8941 | ||
d0fb9a8d | 8942 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8943 | goto error_return_bad_verdef; |
d0fb9a8d | 8944 | |
f631889e | 8945 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8946 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8947 | |
8948 | iverdef->vd_bfd = abfd; | |
8949 | ||
d0fb9a8d JJ |
8950 | if (iverdef->vd_cnt == 0) |
8951 | iverdef->vd_auxptr = NULL; | |
8952 | else | |
8953 | { | |
1f4361a7 AM |
8954 | if (_bfd_mul_overflow (iverdef->vd_cnt, |
8955 | sizeof (Elf_Internal_Verdaux), &amt)) | |
8956 | { | |
8957 | bfd_set_error (bfd_error_file_too_big); | |
8958 | goto error_return_verdef; | |
8959 | } | |
a50b1753 | 8960 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
1f4361a7 | 8961 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8962 | if (iverdef->vd_auxptr == NULL) |
8963 | goto error_return_verdef; | |
8964 | } | |
8965 | ||
8966 | if (iverdef->vd_aux | |
8967 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8968 | goto error_return_bad_verdef; |
252b5132 RH |
8969 | |
8970 | everdaux = ((Elf_External_Verdaux *) | |
8971 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8972 | iverdaux = iverdef->vd_auxptr; | |
8973 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8974 | { | |
8975 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8976 | ||
8977 | iverdaux->vda_nodename = | |
8978 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8979 | iverdaux->vda_name); | |
8980 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8981 | goto error_return_bad_verdef; |
252b5132 | 8982 | |
25ff461f AM |
8983 | iverdaux->vda_nextptr = NULL; |
8984 | if (iverdaux->vda_next == 0) | |
8985 | { | |
8986 | iverdef->vd_cnt = j + 1; | |
8987 | break; | |
8988 | } | |
252b5132 RH |
8989 | if (j + 1 < iverdef->vd_cnt) |
8990 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8991 | |
d0fb9a8d JJ |
8992 | if (iverdaux->vda_next |
8993 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8994 | goto error_return_bad_verdef; |
d0fb9a8d | 8995 | |
252b5132 RH |
8996 | everdaux = ((Elf_External_Verdaux *) |
8997 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8998 | } | |
8999 | ||
595bce75 | 9000 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
9001 | if (iverdef->vd_cnt) |
9002 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 9003 | |
25ff461f AM |
9004 | iverdef->vd_nextdef = NULL; |
9005 | if (iverdef->vd_next == 0) | |
9006 | break; | |
d0fb9a8d | 9007 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 9008 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
9009 | |
9010 | everdef = ((Elf_External_Verdef *) | |
9011 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
9012 | } | |
9013 | ||
9014 | free (contents); | |
9015 | contents = NULL; | |
9016 | } | |
fc0e6df6 | 9017 | else if (default_imported_symver) |
252b5132 | 9018 | { |
fc0e6df6 PB |
9019 | if (freeidx < 3) |
9020 | freeidx = 3; | |
9021 | else | |
9022 | freeidx++; | |
252b5132 | 9023 | |
1f4361a7 AM |
9024 | if (_bfd_mul_overflow (freeidx, sizeof (Elf_Internal_Verdef), &amt)) |
9025 | { | |
9026 | bfd_set_error (bfd_error_file_too_big); | |
9027 | goto error_return; | |
9028 | } | |
9029 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
fc0e6df6 | 9030 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
9031 | goto error_return; |
9032 | ||
fc0e6df6 PB |
9033 | elf_tdata (abfd)->cverdefs = freeidx; |
9034 | } | |
252b5132 | 9035 | |
fc0e6df6 PB |
9036 | /* Create a default version based on the soname. */ |
9037 | if (default_imported_symver) | |
9038 | { | |
9039 | Elf_Internal_Verdef *iverdef; | |
9040 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 9041 | |
5bb3703f | 9042 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 9043 | |
fc0e6df6 PB |
9044 | iverdef->vd_version = VER_DEF_CURRENT; |
9045 | iverdef->vd_flags = 0; | |
9046 | iverdef->vd_ndx = freeidx; | |
9047 | iverdef->vd_cnt = 1; | |
252b5132 | 9048 | |
fc0e6df6 | 9049 | iverdef->vd_bfd = abfd; |
252b5132 | 9050 | |
fc0e6df6 PB |
9051 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
9052 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 9053 | goto error_return_verdef; |
fc0e6df6 | 9054 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
9055 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
9056 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
9057 | if (iverdef->vd_auxptr == NULL) |
9058 | goto error_return_verdef; | |
252b5132 | 9059 | |
fc0e6df6 PB |
9060 | iverdaux = iverdef->vd_auxptr; |
9061 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
9062 | } |
9063 | ||
0a1b45a2 | 9064 | return true; |
252b5132 RH |
9065 | |
9066 | error_return: | |
c9594989 | 9067 | free (contents); |
0a1b45a2 | 9068 | return false; |
252b5132 RH |
9069 | } |
9070 | \f | |
9071 | asymbol * | |
217aa764 | 9072 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
9073 | { |
9074 | elf_symbol_type *newsym; | |
9075 | ||
7a6e0d89 | 9076 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
9077 | if (!newsym) |
9078 | return NULL; | |
201159ec NC |
9079 | newsym->symbol.the_bfd = abfd; |
9080 | return &newsym->symbol; | |
252b5132 RH |
9081 | } |
9082 | ||
9083 | void | |
217aa764 AM |
9084 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
9085 | asymbol *symbol, | |
9086 | symbol_info *ret) | |
252b5132 RH |
9087 | { |
9088 | bfd_symbol_info (symbol, ret); | |
9089 | } | |
9090 | ||
9091 | /* Return whether a symbol name implies a local symbol. Most targets | |
9092 | use this function for the is_local_label_name entry point, but some | |
9093 | override it. */ | |
9094 | ||
0a1b45a2 | 9095 | bool |
217aa764 AM |
9096 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
9097 | const char *name) | |
252b5132 RH |
9098 | { |
9099 | /* Normal local symbols start with ``.L''. */ | |
9100 | if (name[0] == '.' && name[1] == 'L') | |
0a1b45a2 | 9101 | return true; |
252b5132 RH |
9102 | |
9103 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
9104 | DWARF debugging symbols starting with ``..''. */ | |
9105 | if (name[0] == '.' && name[1] == '.') | |
0a1b45a2 | 9106 | return true; |
252b5132 RH |
9107 | |
9108 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
9109 | emitting DWARF debugging output. I suspect this is actually a | |
9110 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
9111 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
9112 | underscore to be emitted on some ELF targets). For ease of use, | |
9113 | we treat such symbols as local. */ | |
9114 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
0a1b45a2 | 9115 | return true; |
252b5132 | 9116 | |
b1fa9dd6 NC |
9117 | /* Treat assembler generated fake symbols, dollar local labels and |
9118 | forward-backward labels (aka local labels) as locals. | |
9119 | These labels have the form: | |
9120 | ||
07d6d2b8 | 9121 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
9122 | |
9123 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
9124 | ||
9125 | Versions which start with .L will have already been matched above, | |
9126 | so we only need to match the rest. */ | |
9127 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
9128 | { | |
0a1b45a2 | 9129 | bool ret = false; |
b1fa9dd6 NC |
9130 | const char * p; |
9131 | char c; | |
9132 | ||
9133 | for (p = name + 2; (c = *p); p++) | |
9134 | { | |
9135 | if (c == 1 || c == 2) | |
9136 | { | |
9137 | if (c == 1 && p == name + 2) | |
9138 | /* A fake symbol. */ | |
0a1b45a2 | 9139 | return true; |
b1fa9dd6 NC |
9140 | |
9141 | /* FIXME: We are being paranoid here and treating symbols like | |
9142 | L0^Bfoo as if there were non-local, on the grounds that the | |
9143 | assembler will never generate them. But can any symbol | |
9144 | containing an ASCII value in the range 1-31 ever be anything | |
9145 | other than some kind of local ? */ | |
0a1b45a2 | 9146 | ret = true; |
b1fa9dd6 NC |
9147 | } |
9148 | ||
9149 | if (! ISDIGIT (c)) | |
9150 | { | |
0a1b45a2 | 9151 | ret = false; |
b1fa9dd6 NC |
9152 | break; |
9153 | } | |
9154 | } | |
9155 | return ret; | |
9156 | } | |
ffa54770 | 9157 | |
0a1b45a2 | 9158 | return false; |
252b5132 RH |
9159 | } |
9160 | ||
9161 | alent * | |
217aa764 AM |
9162 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9163 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9164 | { |
9165 | abort (); | |
9166 | return NULL; | |
9167 | } | |
9168 | ||
0a1b45a2 | 9169 | bool |
217aa764 AM |
9170 | _bfd_elf_set_arch_mach (bfd *abfd, |
9171 | enum bfd_architecture arch, | |
9172 | unsigned long machine) | |
252b5132 RH |
9173 | { |
9174 | /* If this isn't the right architecture for this backend, and this | |
9175 | isn't the generic backend, fail. */ | |
9176 | if (arch != get_elf_backend_data (abfd)->arch | |
9177 | && arch != bfd_arch_unknown | |
9178 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
0a1b45a2 | 9179 | return false; |
252b5132 RH |
9180 | |
9181 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9182 | } | |
9183 | ||
d1fad7c6 NC |
9184 | /* Find the nearest line to a particular section and offset, |
9185 | for error reporting. */ | |
9186 | ||
0a1b45a2 | 9187 | bool |
217aa764 | 9188 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9189 | asymbol **symbols, |
fb167eb2 | 9190 | asection *section, |
217aa764 AM |
9191 | bfd_vma offset, |
9192 | const char **filename_ptr, | |
9193 | const char **functionname_ptr, | |
fb167eb2 AM |
9194 | unsigned int *line_ptr, |
9195 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9196 | { |
0a1b45a2 | 9197 | bool found; |
d1fad7c6 | 9198 | |
fb167eb2 | 9199 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9200 | filename_ptr, functionname_ptr, |
fb167eb2 | 9201 | line_ptr, discriminator_ptr, |
9defd221 | 9202 | dwarf_debug_sections, |
e7679060 | 9203 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
0a1b45a2 | 9204 | return true; |
e7679060 AM |
9205 | |
9206 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9207 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
9208 | { |
9209 | if (!*functionname_ptr) | |
e00e8198 AM |
9210 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9211 | *filename_ptr ? NULL : filename_ptr, | |
9212 | functionname_ptr); | |
0a1b45a2 | 9213 | return true; |
d1fad7c6 NC |
9214 | } |
9215 | ||
9216 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9217 | &found, filename_ptr, |
9218 | functionname_ptr, line_ptr, | |
9219 | &elf_tdata (abfd)->line_info)) | |
0a1b45a2 | 9220 | return false; |
dc43ada5 | 9221 | if (found && (*functionname_ptr || *line_ptr)) |
0a1b45a2 | 9222 | return true; |
d1fad7c6 NC |
9223 | |
9224 | if (symbols == NULL) | |
0a1b45a2 | 9225 | return false; |
d1fad7c6 | 9226 | |
e00e8198 AM |
9227 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9228 | filename_ptr, functionname_ptr)) | |
0a1b45a2 | 9229 | return false; |
d1fad7c6 | 9230 | |
252b5132 | 9231 | *line_ptr = 0; |
0a1b45a2 | 9232 | return true; |
252b5132 RH |
9233 | } |
9234 | ||
5420f73d L |
9235 | /* Find the line for a symbol. */ |
9236 | ||
0a1b45a2 | 9237 | bool |
5420f73d L |
9238 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, |
9239 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9240 | { |
fb167eb2 AM |
9241 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9242 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9243 | dwarf_debug_sections, |
fb167eb2 | 9244 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9245 | } |
9246 | ||
4ab527b0 FF |
9247 | /* After a call to bfd_find_nearest_line, successive calls to |
9248 | bfd_find_inliner_info can be used to get source information about | |
9249 | each level of function inlining that terminated at the address | |
9250 | passed to bfd_find_nearest_line. Currently this is only supported | |
9251 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9252 | ||
0a1b45a2 | 9253 | bool |
4ab527b0 FF |
9254 | _bfd_elf_find_inliner_info (bfd *abfd, |
9255 | const char **filename_ptr, | |
9256 | const char **functionname_ptr, | |
9257 | unsigned int *line_ptr) | |
9258 | { | |
0a1b45a2 | 9259 | bool found; |
4ab527b0 FF |
9260 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, |
9261 | functionname_ptr, line_ptr, | |
9262 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9263 | return found; | |
9264 | } | |
9265 | ||
252b5132 | 9266 | int |
a6b96beb | 9267 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9268 | { |
8ded5a0f AM |
9269 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9270 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9271 | |
0e1862bb | 9272 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9273 | { |
12bd6957 | 9274 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9275 | |
62d7a5f6 AM |
9276 | if (phdr_size == (bfd_size_type) -1) |
9277 | { | |
9278 | struct elf_segment_map *m; | |
9279 | ||
9280 | phdr_size = 0; | |
12bd6957 | 9281 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9282 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9283 | |
62d7a5f6 AM |
9284 | if (phdr_size == 0) |
9285 | phdr_size = get_program_header_size (abfd, info); | |
9286 | } | |
8ded5a0f | 9287 | |
12bd6957 | 9288 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9289 | ret += phdr_size; |
9290 | } | |
9291 | ||
252b5132 RH |
9292 | return ret; |
9293 | } | |
9294 | ||
0a1b45a2 | 9295 | bool |
217aa764 AM |
9296 | _bfd_elf_set_section_contents (bfd *abfd, |
9297 | sec_ptr section, | |
0f867abe | 9298 | const void *location, |
217aa764 AM |
9299 | file_ptr offset, |
9300 | bfd_size_type count) | |
252b5132 RH |
9301 | { |
9302 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9303 | file_ptr pos; |
252b5132 RH |
9304 | |
9305 | if (! abfd->output_has_begun | |
217aa764 | 9306 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
0a1b45a2 | 9307 | return false; |
252b5132 | 9308 | |
0ce398f1 | 9309 | if (!count) |
0a1b45a2 | 9310 | return true; |
0ce398f1 | 9311 | |
252b5132 | 9312 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9313 | if (hdr->sh_offset == (file_ptr) -1) |
9314 | { | |
a0dcf297 NC |
9315 | unsigned char *contents; |
9316 | ||
1ff6de03 NA |
9317 | if (bfd_section_is_ctf (section)) |
9318 | /* Nothing to do with this section: the contents are generated | |
9319 | later. */ | |
0a1b45a2 | 9320 | return true; |
1ff6de03 | 9321 | |
a0dcf297 NC |
9322 | if ((section->flags & SEC_ELF_COMPRESS) == 0) |
9323 | { | |
9324 | _bfd_error_handler | |
9325 | (_("%pB:%pA: error: attempting to write into an unallocated compressed section"), | |
9326 | abfd, section); | |
9327 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9328 | return false; |
a0dcf297 NC |
9329 | } |
9330 | ||
9331 | if ((offset + count) > hdr->sh_size) | |
9332 | { | |
9333 | _bfd_error_handler | |
9334 | (_("%pB:%pA: error: attempting to write over the end of the section"), | |
9335 | abfd, section); | |
9336 | ||
9337 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9338 | return false; |
a0dcf297 NC |
9339 | } |
9340 | ||
9341 | contents = hdr->contents; | |
9342 | if (contents == NULL) | |
9343 | { | |
9344 | _bfd_error_handler | |
9345 | (_("%pB:%pA: error: attempting to write section into an empty buffer"), | |
9346 | abfd, section); | |
9347 | ||
9348 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9349 | return false; |
a0dcf297 NC |
9350 | } |
9351 | ||
0ce398f1 | 9352 | memcpy (contents + offset, location, count); |
0a1b45a2 | 9353 | return true; |
0ce398f1 | 9354 | } |
a0dcf297 | 9355 | |
dc810e39 AM |
9356 | pos = hdr->sh_offset + offset; |
9357 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9358 | || bfd_bwrite (location, count, abfd) != count) | |
0a1b45a2 | 9359 | return false; |
252b5132 | 9360 | |
0a1b45a2 | 9361 | return true; |
252b5132 RH |
9362 | } |
9363 | ||
0a1b45a2 | 9364 | bool |
217aa764 AM |
9365 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9366 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9367 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9368 | { |
9369 | abort (); | |
0a1b45a2 | 9370 | return false; |
252b5132 RH |
9371 | } |
9372 | ||
252b5132 RH |
9373 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9374 | ||
0a1b45a2 | 9375 | bool |
217aa764 | 9376 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9377 | { |
c044fabd | 9378 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9379 | |
9380 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9381 | { | |
9382 | bfd_reloc_code_real_type code; | |
9383 | reloc_howto_type *howto; | |
9384 | ||
9385 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9386 | equivalent ELF reloc. */ |
252b5132 RH |
9387 | |
9388 | if (areloc->howto->pc_relative) | |
9389 | { | |
9390 | switch (areloc->howto->bitsize) | |
9391 | { | |
9392 | case 8: | |
9393 | code = BFD_RELOC_8_PCREL; | |
9394 | break; | |
9395 | case 12: | |
9396 | code = BFD_RELOC_12_PCREL; | |
9397 | break; | |
9398 | case 16: | |
9399 | code = BFD_RELOC_16_PCREL; | |
9400 | break; | |
9401 | case 24: | |
9402 | code = BFD_RELOC_24_PCREL; | |
9403 | break; | |
9404 | case 32: | |
9405 | code = BFD_RELOC_32_PCREL; | |
9406 | break; | |
9407 | case 64: | |
9408 | code = BFD_RELOC_64_PCREL; | |
9409 | break; | |
9410 | default: | |
9411 | goto fail; | |
9412 | } | |
9413 | ||
9414 | howto = bfd_reloc_type_lookup (abfd, code); | |
9415 | ||
94698d01 | 9416 | if (howto && areloc->howto->pcrel_offset != howto->pcrel_offset) |
252b5132 RH |
9417 | { |
9418 | if (howto->pcrel_offset) | |
9419 | areloc->addend += areloc->address; | |
9420 | else | |
9421 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9422 | } | |
9423 | } | |
9424 | else | |
9425 | { | |
9426 | switch (areloc->howto->bitsize) | |
9427 | { | |
9428 | case 8: | |
9429 | code = BFD_RELOC_8; | |
9430 | break; | |
9431 | case 14: | |
9432 | code = BFD_RELOC_14; | |
9433 | break; | |
9434 | case 16: | |
9435 | code = BFD_RELOC_16; | |
9436 | break; | |
9437 | case 26: | |
9438 | code = BFD_RELOC_26; | |
9439 | break; | |
9440 | case 32: | |
9441 | code = BFD_RELOC_32; | |
9442 | break; | |
9443 | case 64: | |
9444 | code = BFD_RELOC_64; | |
9445 | break; | |
9446 | default: | |
9447 | goto fail; | |
9448 | } | |
9449 | ||
9450 | howto = bfd_reloc_type_lookup (abfd, code); | |
9451 | } | |
9452 | ||
9453 | if (howto) | |
9454 | areloc->howto = howto; | |
9455 | else | |
9456 | goto fail; | |
9457 | } | |
9458 | ||
0a1b45a2 | 9459 | return true; |
252b5132 RH |
9460 | |
9461 | fail: | |
0aa13fee AM |
9462 | /* xgettext:c-format */ |
9463 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9464 | abfd, areloc->howto->name); | |
9aea1e31 | 9465 | bfd_set_error (bfd_error_sorry); |
0a1b45a2 | 9466 | return false; |
252b5132 RH |
9467 | } |
9468 | ||
0a1b45a2 | 9469 | bool |
217aa764 | 9470 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9471 | { |
d9071b0c | 9472 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
0ed18fa1 AM |
9473 | if (tdata != NULL |
9474 | && (bfd_get_format (abfd) == bfd_object | |
9475 | || bfd_get_format (abfd) == bfd_core)) | |
252b5132 | 9476 | { |
c0355132 | 9477 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9478 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9479 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9480 | } |
9481 | ||
9482 | return _bfd_generic_close_and_cleanup (abfd); | |
9483 | } | |
9484 | ||
9485 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9486 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9487 | range-checking to interfere. There is nothing else to do in processing | |
9488 | this reloc. */ | |
9489 | ||
9490 | bfd_reloc_status_type | |
217aa764 AM |
9491 | _bfd_elf_rel_vtable_reloc_fn |
9492 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9493 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9494 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9495 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9496 | { |
9497 | return bfd_reloc_ok; | |
9498 | } | |
252b5132 RH |
9499 | \f |
9500 | /* Elf core file support. Much of this only works on native | |
9501 | toolchains, since we rely on knowing the | |
9502 | machine-dependent procfs structure in order to pick | |
c044fabd | 9503 | out details about the corefile. */ |
252b5132 RH |
9504 | |
9505 | #ifdef HAVE_SYS_PROCFS_H | |
9506 | # include <sys/procfs.h> | |
9507 | #endif | |
9508 | ||
261b8d08 PA |
9509 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9510 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9511 | |
9512 | static int | |
217aa764 | 9513 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9514 | { |
261b8d08 PA |
9515 | int pid; |
9516 | ||
228e534f | 9517 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9518 | if (pid == 0) |
228e534f | 9519 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9520 | |
9521 | return pid; | |
252b5132 RH |
9522 | } |
9523 | ||
252b5132 RH |
9524 | /* If there isn't a section called NAME, make one, using |
9525 | data from SECT. Note, this function will generate a | |
9526 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9527 | overwrite it. */ |
252b5132 | 9528 | |
0a1b45a2 | 9529 | static bool |
217aa764 | 9530 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9531 | { |
c044fabd | 9532 | asection *sect2; |
252b5132 RH |
9533 | |
9534 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
0a1b45a2 | 9535 | return true; |
252b5132 | 9536 | |
117ed4f8 | 9537 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9538 | if (sect2 == NULL) |
0a1b45a2 | 9539 | return false; |
252b5132 | 9540 | |
eea6121a | 9541 | sect2->size = sect->size; |
252b5132 | 9542 | sect2->filepos = sect->filepos; |
252b5132 | 9543 | sect2->alignment_power = sect->alignment_power; |
0a1b45a2 | 9544 | return true; |
252b5132 RH |
9545 | } |
9546 | ||
bb0082d6 AM |
9547 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9548 | actually creates up to two pseudosections: | |
9549 | - For the single-threaded case, a section named NAME, unless | |
9550 | such a section already exists. | |
9551 | - For the multi-threaded case, a section named "NAME/PID", where | |
9552 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9553 | Both pseudosections have identical contents. */ |
0a1b45a2 | 9554 | bool |
217aa764 AM |
9555 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9556 | char *name, | |
9557 | size_t size, | |
9558 | ufile_ptr filepos) | |
bb0082d6 AM |
9559 | { |
9560 | char buf[100]; | |
9561 | char *threaded_name; | |
d4c88bbb | 9562 | size_t len; |
bb0082d6 AM |
9563 | asection *sect; |
9564 | ||
9565 | /* Build the section name. */ | |
9566 | ||
9567 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9568 | len = strlen (buf) + 1; |
a50b1753 | 9569 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9570 | if (threaded_name == NULL) |
0a1b45a2 | 9571 | return false; |
d4c88bbb | 9572 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9573 | |
117ed4f8 AM |
9574 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9575 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9576 | if (sect == NULL) |
0a1b45a2 | 9577 | return false; |
eea6121a | 9578 | sect->size = size; |
bb0082d6 | 9579 | sect->filepos = filepos; |
bb0082d6 AM |
9580 | sect->alignment_power = 2; |
9581 | ||
936e320b | 9582 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9583 | } |
9584 | ||
0a1b45a2 | 9585 | static bool |
58e07198 CZ |
9586 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, |
9587 | size_t offs) | |
9588 | { | |
9589 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9590 | SEC_HAS_CONTENTS); | |
9591 | ||
9592 | if (sect == NULL) | |
0a1b45a2 | 9593 | return false; |
58e07198 CZ |
9594 | |
9595 | sect->size = note->descsz - offs; | |
9596 | sect->filepos = note->descpos + offs; | |
9597 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9598 | ||
0a1b45a2 | 9599 | return true; |
58e07198 CZ |
9600 | } |
9601 | ||
894982bf LM |
9602 | static bool |
9603 | elfcore_make_memtag_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9604 | size_t offs) | |
9605 | { | |
9606 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".memtag", | |
9607 | SEC_HAS_CONTENTS); | |
9608 | ||
9609 | if (sect == NULL) | |
9610 | return false; | |
9611 | ||
9612 | sect->size = note->descsz - offs; | |
9613 | sect->filepos = note->descpos + offs; | |
9614 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9615 | ||
9616 | return true; | |
9617 | } | |
9618 | ||
252b5132 | 9619 | /* prstatus_t exists on: |
4a938328 | 9620 | solaris 2.5+ |
252b5132 RH |
9621 | linux 2.[01] + glibc |
9622 | unixware 4.2 | |
9623 | */ | |
9624 | ||
9625 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9626 | |
0a1b45a2 | 9627 | static bool |
217aa764 | 9628 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9629 | { |
eea6121a | 9630 | size_t size; |
7ee38065 | 9631 | int offset; |
252b5132 | 9632 | |
4a938328 MS |
9633 | if (note->descsz == sizeof (prstatus_t)) |
9634 | { | |
9635 | prstatus_t prstat; | |
252b5132 | 9636 | |
eea6121a | 9637 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9638 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9639 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9640 | |
fa49d224 NC |
9641 | /* Do not overwrite the core signal if it |
9642 | has already been set by another thread. */ | |
228e534f AM |
9643 | if (elf_tdata (abfd)->core->signal == 0) |
9644 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9645 | if (elf_tdata (abfd)->core->pid == 0) | |
9646 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9647 | |
4a938328 MS |
9648 | /* pr_who exists on: |
9649 | solaris 2.5+ | |
9650 | unixware 4.2 | |
9651 | pr_who doesn't exist on: | |
9652 | linux 2.[01] | |
9653 | */ | |
252b5132 | 9654 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9655 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9656 | #else |
228e534f | 9657 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9658 | #endif |
4a938328 | 9659 | } |
7ee38065 | 9660 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9661 | else if (note->descsz == sizeof (prstatus32_t)) |
9662 | { | |
9663 | /* 64-bit host, 32-bit corefile */ | |
9664 | prstatus32_t prstat; | |
9665 | ||
eea6121a | 9666 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9667 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9668 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9669 | ||
fa49d224 NC |
9670 | /* Do not overwrite the core signal if it |
9671 | has already been set by another thread. */ | |
228e534f AM |
9672 | if (elf_tdata (abfd)->core->signal == 0) |
9673 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9674 | if (elf_tdata (abfd)->core->pid == 0) | |
9675 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9676 | |
9677 | /* pr_who exists on: | |
9678 | solaris 2.5+ | |
9679 | unixware 4.2 | |
9680 | pr_who doesn't exist on: | |
9681 | linux 2.[01] | |
9682 | */ | |
7ee38065 | 9683 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9684 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9685 | #else |
228e534f | 9686 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9687 | #endif |
9688 | } | |
7ee38065 | 9689 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9690 | else |
9691 | { | |
9692 | /* Fail - we don't know how to handle any other | |
9693 | note size (ie. data object type). */ | |
0a1b45a2 | 9694 | return true; |
4a938328 | 9695 | } |
252b5132 | 9696 | |
bb0082d6 | 9697 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9698 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9699 | size, note->descpos + offset); |
252b5132 RH |
9700 | } |
9701 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9702 | ||
bb0082d6 | 9703 | /* Create a pseudosection containing the exact contents of NOTE. */ |
0a1b45a2 | 9704 | static bool |
217aa764 AM |
9705 | elfcore_make_note_pseudosection (bfd *abfd, |
9706 | char *name, | |
9707 | Elf_Internal_Note *note) | |
252b5132 | 9708 | { |
936e320b AM |
9709 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9710 | note->descsz, note->descpos); | |
252b5132 RH |
9711 | } |
9712 | ||
ff08c6bb JB |
9713 | /* There isn't a consistent prfpregset_t across platforms, |
9714 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9715 | data structure apart. */ |
9716 | ||
0a1b45a2 | 9717 | static bool |
217aa764 | 9718 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9719 | { |
9720 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9721 | } | |
9722 | ||
ff08c6bb | 9723 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9724 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9725 | literally. */ |
c044fabd | 9726 | |
0a1b45a2 | 9727 | static bool |
217aa764 | 9728 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9729 | { |
9730 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9731 | } | |
9732 | ||
4339cae0 L |
9733 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9734 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9735 | contents literally. */ | |
9736 | ||
0a1b45a2 | 9737 | static bool |
4339cae0 L |
9738 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) |
9739 | { | |
9740 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9741 | } | |
9742 | ||
0a1b45a2 | 9743 | static bool |
97753bd5 AM |
9744 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) |
9745 | { | |
9746 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9747 | } | |
9748 | ||
0a1b45a2 | 9749 | static bool |
89eeb0bc LM |
9750 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) |
9751 | { | |
9752 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9753 | } | |
97753bd5 | 9754 | |
0a1b45a2 | 9755 | static bool |
cb2366c1 EBM |
9756 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) |
9757 | { | |
9758 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9759 | } | |
9760 | ||
0a1b45a2 | 9761 | static bool |
cb2366c1 EBM |
9762 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) |
9763 | { | |
9764 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9765 | } | |
9766 | ||
0a1b45a2 | 9767 | static bool |
cb2366c1 EBM |
9768 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) |
9769 | { | |
9770 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9771 | } | |
9772 | ||
0a1b45a2 | 9773 | static bool |
cb2366c1 EBM |
9774 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) |
9775 | { | |
9776 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9777 | } | |
9778 | ||
0a1b45a2 | 9779 | static bool |
cb2366c1 EBM |
9780 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) |
9781 | { | |
9782 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9783 | } | |
9784 | ||
0a1b45a2 | 9785 | static bool |
cb2366c1 EBM |
9786 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) |
9787 | { | |
9788 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9789 | } | |
9790 | ||
0a1b45a2 | 9791 | static bool |
cb2366c1 EBM |
9792 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) |
9793 | { | |
9794 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9795 | } | |
9796 | ||
0a1b45a2 | 9797 | static bool |
cb2366c1 EBM |
9798 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) |
9799 | { | |
9800 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9801 | } | |
9802 | ||
0a1b45a2 | 9803 | static bool |
cb2366c1 EBM |
9804 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) |
9805 | { | |
9806 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9807 | } | |
9808 | ||
0a1b45a2 | 9809 | static bool |
cb2366c1 EBM |
9810 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) |
9811 | { | |
9812 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9813 | } | |
9814 | ||
0a1b45a2 | 9815 | static bool |
cb2366c1 EBM |
9816 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) |
9817 | { | |
9818 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9819 | } | |
9820 | ||
0a1b45a2 | 9821 | static bool |
cb2366c1 EBM |
9822 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) |
9823 | { | |
9824 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9825 | } | |
9826 | ||
0a1b45a2 | 9827 | static bool |
cb2366c1 EBM |
9828 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) |
9829 | { | |
9830 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9831 | } | |
9832 | ||
0a1b45a2 | 9833 | static bool |
0675e188 UW |
9834 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) |
9835 | { | |
9836 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9837 | } | |
9838 | ||
0a1b45a2 | 9839 | static bool |
d7eeb400 MS |
9840 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) |
9841 | { | |
9842 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9843 | } | |
9844 | ||
0a1b45a2 | 9845 | static bool |
d7eeb400 MS |
9846 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) |
9847 | { | |
9848 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9849 | } | |
9850 | ||
0a1b45a2 | 9851 | static bool |
d7eeb400 MS |
9852 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) |
9853 | { | |
9854 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9855 | } | |
9856 | ||
0a1b45a2 | 9857 | static bool |
d7eeb400 MS |
9858 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) |
9859 | { | |
9860 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9861 | } | |
9862 | ||
0a1b45a2 | 9863 | static bool |
d7eeb400 MS |
9864 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) |
9865 | { | |
9866 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9867 | } | |
9868 | ||
0a1b45a2 | 9869 | static bool |
355b81d9 UW |
9870 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) |
9871 | { | |
9872 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9873 | } | |
9874 | ||
0a1b45a2 | 9875 | static bool |
355b81d9 UW |
9876 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) |
9877 | { | |
9878 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9879 | } | |
9880 | ||
0a1b45a2 | 9881 | static bool |
abb3f6cc NC |
9882 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) |
9883 | { | |
9884 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9885 | } | |
9886 | ||
0a1b45a2 | 9887 | static bool |
4ef9f41a AA |
9888 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) |
9889 | { | |
9890 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9891 | } | |
9892 | ||
0a1b45a2 | 9893 | static bool |
4ef9f41a AA |
9894 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) |
9895 | { | |
9896 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9897 | } | |
9898 | ||
0a1b45a2 | 9899 | static bool |
88ab90e8 AA |
9900 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) |
9901 | { | |
9902 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9903 | } | |
9904 | ||
0a1b45a2 | 9905 | static bool |
88ab90e8 AA |
9906 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) |
9907 | { | |
9908 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9909 | } | |
9910 | ||
0a1b45a2 | 9911 | static bool |
faa9a424 UW |
9912 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) |
9913 | { | |
9914 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9915 | } | |
9916 | ||
0a1b45a2 | 9917 | static bool |
652451f8 YZ |
9918 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) |
9919 | { | |
9920 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9921 | } | |
9922 | ||
0a1b45a2 | 9923 | static bool |
652451f8 YZ |
9924 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) |
9925 | { | |
9926 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9927 | } | |
9928 | ||
0a1b45a2 | 9929 | static bool |
652451f8 YZ |
9930 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) |
9931 | { | |
9932 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9933 | } | |
9934 | ||
0a1b45a2 | 9935 | static bool |
ad1cc4e4 AH |
9936 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) |
9937 | { | |
9938 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9939 | } | |
9940 | ||
0a1b45a2 | 9941 | static bool |
e6c3b5bf AH |
9942 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) |
9943 | { | |
9944 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9945 | } | |
9946 | ||
f0bbe8ba LM |
9947 | static bool |
9948 | elfcore_grok_aarch_mte (bfd *abfd, Elf_Internal_Note *note) | |
9949 | { | |
9950 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-mte", | |
9951 | note); | |
9952 | } | |
9953 | ||
0a1b45a2 | 9954 | static bool |
27456742 AK |
9955 | elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note) |
9956 | { | |
9957 | return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note); | |
9958 | } | |
9959 | ||
db6092f3 AB |
9960 | /* Convert NOTE into a bfd_section called ".reg-riscv-csr". Return TRUE if |
9961 | successful otherwise, return FALSE. */ | |
9962 | ||
0a1b45a2 | 9963 | static bool |
db6092f3 AB |
9964 | elfcore_grok_riscv_csr (bfd *abfd, Elf_Internal_Note *note) |
9965 | { | |
9966 | return elfcore_make_note_pseudosection (abfd, ".reg-riscv-csr", note); | |
9967 | } | |
9968 | ||
b63a5e38 AB |
9969 | /* Convert NOTE into a bfd_section called ".gdb-tdesc". Return TRUE if |
9970 | successful otherwise, return FALSE. */ | |
9971 | ||
0a1b45a2 | 9972 | static bool |
b63a5e38 AB |
9973 | elfcore_grok_gdb_tdesc (bfd *abfd, Elf_Internal_Note *note) |
9974 | { | |
9975 | return elfcore_make_note_pseudosection (abfd, ".gdb-tdesc", note); | |
9976 | } | |
9977 | ||
252b5132 | 9978 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9979 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9980 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9981 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9982 | #endif | |
252b5132 RH |
9983 | #endif |
9984 | ||
9985 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9986 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9987 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9988 | typedef psinfo32_t elfcore_psinfo32_t; |
9989 | #endif | |
252b5132 RH |
9990 | #endif |
9991 | ||
252b5132 RH |
9992 | /* return a malloc'ed copy of a string at START which is at |
9993 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9994 | the copy will always have a terminating '\0'. */ |
252b5132 | 9995 | |
936e320b | 9996 | char * |
217aa764 | 9997 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9998 | { |
dc810e39 | 9999 | char *dups; |
a50b1753 | 10000 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 10001 | size_t len; |
252b5132 RH |
10002 | |
10003 | if (end == NULL) | |
10004 | len = max; | |
10005 | else | |
10006 | len = end - start; | |
10007 | ||
a50b1753 | 10008 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 10009 | if (dups == NULL) |
252b5132 RH |
10010 | return NULL; |
10011 | ||
dc810e39 AM |
10012 | memcpy (dups, start, len); |
10013 | dups[len] = '\0'; | |
252b5132 | 10014 | |
dc810e39 | 10015 | return dups; |
252b5132 RH |
10016 | } |
10017 | ||
bb0082d6 | 10018 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
0a1b45a2 | 10019 | static bool |
217aa764 | 10020 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10021 | { |
4a938328 MS |
10022 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
10023 | { | |
10024 | elfcore_psinfo_t psinfo; | |
252b5132 | 10025 | |
7ee38065 | 10026 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 10027 | |
335e41d4 | 10028 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 10029 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 10030 | #endif |
228e534f | 10031 | elf_tdata (abfd)->core->program |
936e320b AM |
10032 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
10033 | sizeof (psinfo.pr_fname)); | |
252b5132 | 10034 | |
228e534f | 10035 | elf_tdata (abfd)->core->command |
936e320b AM |
10036 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
10037 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 10038 | } |
7ee38065 | 10039 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
10040 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
10041 | { | |
10042 | /* 64-bit host, 32-bit corefile */ | |
10043 | elfcore_psinfo32_t psinfo; | |
10044 | ||
7ee38065 | 10045 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 10046 | |
335e41d4 | 10047 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 10048 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 10049 | #endif |
228e534f | 10050 | elf_tdata (abfd)->core->program |
936e320b AM |
10051 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
10052 | sizeof (psinfo.pr_fname)); | |
4a938328 | 10053 | |
228e534f | 10054 | elf_tdata (abfd)->core->command |
936e320b AM |
10055 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
10056 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
10057 | } |
10058 | #endif | |
10059 | ||
10060 | else | |
10061 | { | |
10062 | /* Fail - we don't know how to handle any other | |
10063 | note size (ie. data object type). */ | |
0a1b45a2 | 10064 | return true; |
4a938328 | 10065 | } |
252b5132 RH |
10066 | |
10067 | /* Note that for some reason, a spurious space is tacked | |
10068 | onto the end of the args in some (at least one anyway) | |
c044fabd | 10069 | implementations, so strip it off if it exists. */ |
252b5132 RH |
10070 | |
10071 | { | |
228e534f | 10072 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
10073 | int n = strlen (command); |
10074 | ||
10075 | if (0 < n && command[n - 1] == ' ') | |
10076 | command[n - 1] = '\0'; | |
10077 | } | |
10078 | ||
0a1b45a2 | 10079 | return true; |
252b5132 RH |
10080 | } |
10081 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
10082 | ||
252b5132 | 10083 | #if defined (HAVE_PSTATUS_T) |
0a1b45a2 | 10084 | static bool |
217aa764 | 10085 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10086 | { |
f572a39d AM |
10087 | if (note->descsz == sizeof (pstatus_t) |
10088 | #if defined (HAVE_PXSTATUS_T) | |
10089 | || note->descsz == sizeof (pxstatus_t) | |
10090 | #endif | |
10091 | ) | |
4a938328 MS |
10092 | { |
10093 | pstatus_t pstat; | |
252b5132 | 10094 | |
4a938328 | 10095 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10096 | |
228e534f | 10097 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 10098 | } |
7ee38065 | 10099 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
10100 | else if (note->descsz == sizeof (pstatus32_t)) |
10101 | { | |
10102 | /* 64-bit host, 32-bit corefile */ | |
10103 | pstatus32_t pstat; | |
252b5132 | 10104 | |
4a938328 | 10105 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10106 | |
228e534f | 10107 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
10108 | } |
10109 | #endif | |
252b5132 RH |
10110 | /* Could grab some more details from the "representative" |
10111 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 10112 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 10113 | |
0a1b45a2 | 10114 | return true; |
252b5132 RH |
10115 | } |
10116 | #endif /* defined (HAVE_PSTATUS_T) */ | |
10117 | ||
252b5132 | 10118 | #if defined (HAVE_LWPSTATUS_T) |
0a1b45a2 | 10119 | static bool |
217aa764 | 10120 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
10121 | { |
10122 | lwpstatus_t lwpstat; | |
10123 | char buf[100]; | |
c044fabd | 10124 | char *name; |
d4c88bbb | 10125 | size_t len; |
c044fabd | 10126 | asection *sect; |
252b5132 | 10127 | |
f572a39d AM |
10128 | if (note->descsz != sizeof (lwpstat) |
10129 | #if defined (HAVE_LWPXSTATUS_T) | |
10130 | && note->descsz != sizeof (lwpxstatus_t) | |
10131 | #endif | |
10132 | ) | |
0a1b45a2 | 10133 | return true; |
252b5132 RH |
10134 | |
10135 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
10136 | ||
228e534f | 10137 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
10138 | /* Do not overwrite the core signal if it has already been set by |
10139 | another thread. */ | |
228e534f AM |
10140 | if (elf_tdata (abfd)->core->signal == 0) |
10141 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 10142 | |
c044fabd | 10143 | /* Make a ".reg/999" section. */ |
252b5132 RH |
10144 | |
10145 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10146 | len = strlen (buf) + 1; |
217aa764 | 10147 | name = bfd_alloc (abfd, len); |
252b5132 | 10148 | if (name == NULL) |
0a1b45a2 | 10149 | return false; |
d4c88bbb | 10150 | memcpy (name, buf, len); |
252b5132 | 10151 | |
117ed4f8 | 10152 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10153 | if (sect == NULL) |
0a1b45a2 | 10154 | return false; |
252b5132 RH |
10155 | |
10156 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10157 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
10158 | sect->filepos = note->descpos |
10159 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
10160 | #endif | |
10161 | ||
10162 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 10163 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
10164 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
10165 | #endif | |
10166 | ||
252b5132 RH |
10167 | sect->alignment_power = 2; |
10168 | ||
10169 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
0a1b45a2 | 10170 | return false; |
252b5132 RH |
10171 | |
10172 | /* Make a ".reg2/999" section */ | |
10173 | ||
10174 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10175 | len = strlen (buf) + 1; |
217aa764 | 10176 | name = bfd_alloc (abfd, len); |
252b5132 | 10177 | if (name == NULL) |
0a1b45a2 | 10178 | return false; |
d4c88bbb | 10179 | memcpy (name, buf, len); |
252b5132 | 10180 | |
117ed4f8 | 10181 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10182 | if (sect == NULL) |
0a1b45a2 | 10183 | return false; |
252b5132 RH |
10184 | |
10185 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10186 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
10187 | sect->filepos = note->descpos |
10188 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
10189 | #endif | |
10190 | ||
10191 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 10192 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
10193 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
10194 | #endif | |
10195 | ||
252b5132 RH |
10196 | sect->alignment_power = 2; |
10197 | ||
936e320b | 10198 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
10199 | } |
10200 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
10201 | ||
8fbac78b JT |
10202 | /* These constants, and the structure offsets used below, are defined by |
10203 | Cygwin's core_dump.h */ | |
10204 | #define NOTE_INFO_PROCESS 1 | |
10205 | #define NOTE_INFO_THREAD 2 | |
10206 | #define NOTE_INFO_MODULE 3 | |
d61f3d03 | 10207 | #define NOTE_INFO_MODULE64 4 |
8fbac78b | 10208 | |
0a1b45a2 | 10209 | static bool |
217aa764 | 10210 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
10211 | { |
10212 | char buf[30]; | |
c044fabd | 10213 | char *name; |
d4c88bbb | 10214 | size_t len; |
3cdad084 | 10215 | unsigned int name_size; |
c044fabd | 10216 | asection *sect; |
2fef9373 | 10217 | unsigned int type; |
4a6636fb PA |
10218 | int is_active_thread; |
10219 | bfd_vma base_addr; | |
16e9c715 | 10220 | |
04ec0fa2 | 10221 | if (note->descsz < 4) |
0a1b45a2 | 10222 | return true; |
16e9c715 | 10223 | |
08dedd66 | 10224 | if (! startswith (note->namedata, "win32")) |
0a1b45a2 | 10225 | return true; |
4a6636fb PA |
10226 | |
10227 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 10228 | |
7e0d77ef NC |
10229 | struct |
10230 | { | |
404ec933 JT |
10231 | const char *type_name; |
10232 | unsigned long min_size; | |
10233 | } size_check[] = | |
10234 | { | |
10235 | { "NOTE_INFO_PROCESS", 12 }, | |
10236 | { "NOTE_INFO_THREAD", 12 }, | |
10237 | { "NOTE_INFO_MODULE", 12 }, | |
10238 | { "NOTE_INFO_MODULE64", 16 }, | |
10239 | }; | |
10240 | ||
7e0d77ef | 10241 | if (type == 0 || type > (sizeof(size_check)/sizeof(size_check[0]))) |
0a1b45a2 | 10242 | return true; |
404ec933 JT |
10243 | |
10244 | if (note->descsz < size_check[type - 1].min_size) | |
10245 | { | |
10246 | _bfd_error_handler (_("%pB: warning: win32pstatus %s of size %lu bytes is too small"), | |
10247 | abfd, size_check[type - 1].type_name, note->descsz); | |
0a1b45a2 | 10248 | return true; |
404ec933 JT |
10249 | } |
10250 | ||
4a6636fb | 10251 | switch (type) |
16e9c715 | 10252 | { |
8fbac78b | 10253 | case NOTE_INFO_PROCESS: |
228e534f | 10254 | /* FIXME: need to add ->core->command. */ |
ff2084b9 | 10255 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 4); |
ff2084b9 | 10256 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 8); |
c044fabd | 10257 | break; |
16e9c715 | 10258 | |
8fbac78b | 10259 | case NOTE_INFO_THREAD: |
ff2084b9 JT |
10260 | /* Make a ".reg/<tid>" section containing the Win32 API thread CONTEXT |
10261 | structure. */ | |
4a6636fb | 10262 | /* thread_info.tid */ |
ff2084b9 | 10263 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 4)); |
c044fabd | 10264 | |
d4c88bbb | 10265 | len = strlen (buf) + 1; |
a50b1753 | 10266 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10267 | if (name == NULL) |
0a1b45a2 | 10268 | return false; |
c044fabd | 10269 | |
d4c88bbb | 10270 | memcpy (name, buf, len); |
16e9c715 | 10271 | |
117ed4f8 | 10272 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10273 | if (sect == NULL) |
0a1b45a2 | 10274 | return false; |
c044fabd | 10275 | |
4a6636fb | 10276 | /* sizeof (thread_info.thread_context) */ |
03c29a6f | 10277 | sect->size = note->descsz - 12; |
4a6636fb PA |
10278 | /* offsetof (thread_info.thread_context) */ |
10279 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10280 | sect->alignment_power = 2; |
10281 | ||
4a6636fb PA |
10282 | /* thread_info.is_active_thread */ |
10283 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10284 | ||
10285 | if (is_active_thread) | |
16e9c715 | 10286 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
0a1b45a2 | 10287 | return false; |
16e9c715 NC |
10288 | break; |
10289 | ||
8fbac78b | 10290 | case NOTE_INFO_MODULE: |
d61f3d03 | 10291 | case NOTE_INFO_MODULE64: |
16e9c715 | 10292 | /* Make a ".module/xxxxxxxx" section. */ |
d61f3d03 JT |
10293 | if (type == NOTE_INFO_MODULE) |
10294 | { | |
d61f3d03 JT |
10295 | /* module_info.base_address */ |
10296 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
10297 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); | |
10298 | /* module_info.module_name_size */ | |
10299 | name_size = bfd_get_32 (abfd, note->descdata + 8); | |
10300 | } | |
10301 | else /* NOTE_INFO_MODULE64 */ | |
10302 | { | |
d61f3d03 JT |
10303 | /* module_info.base_address */ |
10304 | base_addr = bfd_get_64 (abfd, note->descdata + 4); | |
10305 | sprintf (buf, ".module/%016lx", (unsigned long) base_addr); | |
10306 | /* module_info.module_name_size */ | |
10307 | name_size = bfd_get_32 (abfd, note->descdata + 12); | |
10308 | } | |
c044fabd | 10309 | |
d4c88bbb | 10310 | len = strlen (buf) + 1; |
a50b1753 | 10311 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10312 | if (name == NULL) |
0a1b45a2 | 10313 | return false; |
c044fabd | 10314 | |
d4c88bbb | 10315 | memcpy (name, buf, len); |
252b5132 | 10316 | |
117ed4f8 | 10317 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10318 | |
16e9c715 | 10319 | if (sect == NULL) |
0a1b45a2 | 10320 | return false; |
c044fabd | 10321 | |
04ec0fa2 | 10322 | if (note->descsz < 12 + name_size) |
404ec933 | 10323 | { |
3cdad084 | 10324 | _bfd_error_handler (_("%pB: win32pstatus NOTE_INFO_MODULE of size %lu is too small to contain a name of size %u"), |
404ec933 | 10325 | abfd, note->descsz, name_size); |
0a1b45a2 | 10326 | return true; |
404ec933 | 10327 | } |
04ec0fa2 | 10328 | |
eea6121a | 10329 | sect->size = note->descsz; |
16e9c715 | 10330 | sect->filepos = note->descpos; |
16e9c715 NC |
10331 | sect->alignment_power = 2; |
10332 | break; | |
10333 | ||
10334 | default: | |
0a1b45a2 | 10335 | return true; |
16e9c715 NC |
10336 | } |
10337 | ||
0a1b45a2 | 10338 | return true; |
16e9c715 | 10339 | } |
252b5132 | 10340 | |
0a1b45a2 | 10341 | static bool |
217aa764 | 10342 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10343 | { |
9c5bfbb7 | 10344 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10345 | |
252b5132 RH |
10346 | switch (note->type) |
10347 | { | |
10348 | default: | |
0a1b45a2 | 10349 | return true; |
252b5132 | 10350 | |
252b5132 | 10351 | case NT_PRSTATUS: |
bb0082d6 AM |
10352 | if (bed->elf_backend_grok_prstatus) |
10353 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
0a1b45a2 | 10354 | return true; |
bb0082d6 | 10355 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10356 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10357 | #else |
0a1b45a2 | 10358 | return true; |
252b5132 RH |
10359 | #endif |
10360 | ||
10361 | #if defined (HAVE_PSTATUS_T) | |
10362 | case NT_PSTATUS: | |
10363 | return elfcore_grok_pstatus (abfd, note); | |
10364 | #endif | |
10365 | ||
10366 | #if defined (HAVE_LWPSTATUS_T) | |
10367 | case NT_LWPSTATUS: | |
10368 | return elfcore_grok_lwpstatus (abfd, note); | |
10369 | #endif | |
10370 | ||
10371 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10372 | return elfcore_grok_prfpreg (abfd, note); | |
10373 | ||
c044fabd | 10374 | case NT_WIN32PSTATUS: |
16e9c715 | 10375 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10376 | |
c044fabd | 10377 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10378 | if (note->namesz == 6 |
10379 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10380 | return elfcore_grok_prxfpreg (abfd, note); |
10381 | else | |
0a1b45a2 | 10382 | return true; |
ff08c6bb | 10383 | |
4339cae0 L |
10384 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10385 | if (note->namesz == 6 | |
10386 | && strcmp (note->namedata, "LINUX") == 0) | |
10387 | return elfcore_grok_xstatereg (abfd, note); | |
10388 | else | |
0a1b45a2 | 10389 | return true; |
4339cae0 | 10390 | |
97753bd5 AM |
10391 | case NT_PPC_VMX: |
10392 | if (note->namesz == 6 | |
10393 | && strcmp (note->namedata, "LINUX") == 0) | |
10394 | return elfcore_grok_ppc_vmx (abfd, note); | |
10395 | else | |
0a1b45a2 | 10396 | return true; |
97753bd5 | 10397 | |
89eeb0bc LM |
10398 | case NT_PPC_VSX: |
10399 | if (note->namesz == 6 | |
07d6d2b8 AM |
10400 | && strcmp (note->namedata, "LINUX") == 0) |
10401 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10402 | else |
0a1b45a2 | 10403 | return true; |
89eeb0bc | 10404 | |
cb2366c1 EBM |
10405 | case NT_PPC_TAR: |
10406 | if (note->namesz == 6 | |
4b24dd1a AM |
10407 | && strcmp (note->namedata, "LINUX") == 0) |
10408 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10409 | else |
0a1b45a2 | 10410 | return true; |
cb2366c1 EBM |
10411 | |
10412 | case NT_PPC_PPR: | |
10413 | if (note->namesz == 6 | |
4b24dd1a AM |
10414 | && strcmp (note->namedata, "LINUX") == 0) |
10415 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10416 | else |
0a1b45a2 | 10417 | return true; |
cb2366c1 EBM |
10418 | |
10419 | case NT_PPC_DSCR: | |
10420 | if (note->namesz == 6 | |
4b24dd1a AM |
10421 | && strcmp (note->namedata, "LINUX") == 0) |
10422 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10423 | else |
0a1b45a2 | 10424 | return true; |
cb2366c1 EBM |
10425 | |
10426 | case NT_PPC_EBB: | |
10427 | if (note->namesz == 6 | |
4b24dd1a AM |
10428 | && strcmp (note->namedata, "LINUX") == 0) |
10429 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10430 | else |
0a1b45a2 | 10431 | return true; |
cb2366c1 EBM |
10432 | |
10433 | case NT_PPC_PMU: | |
10434 | if (note->namesz == 6 | |
4b24dd1a AM |
10435 | && strcmp (note->namedata, "LINUX") == 0) |
10436 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10437 | else |
0a1b45a2 | 10438 | return true; |
cb2366c1 EBM |
10439 | |
10440 | case NT_PPC_TM_CGPR: | |
10441 | if (note->namesz == 6 | |
4b24dd1a AM |
10442 | && strcmp (note->namedata, "LINUX") == 0) |
10443 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10444 | else |
0a1b45a2 | 10445 | return true; |
cb2366c1 EBM |
10446 | |
10447 | case NT_PPC_TM_CFPR: | |
10448 | if (note->namesz == 6 | |
4b24dd1a AM |
10449 | && strcmp (note->namedata, "LINUX") == 0) |
10450 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10451 | else |
0a1b45a2 | 10452 | return true; |
cb2366c1 EBM |
10453 | |
10454 | case NT_PPC_TM_CVMX: | |
10455 | if (note->namesz == 6 | |
4b24dd1a AM |
10456 | && strcmp (note->namedata, "LINUX") == 0) |
10457 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10458 | else |
0a1b45a2 | 10459 | return true; |
cb2366c1 EBM |
10460 | |
10461 | case NT_PPC_TM_CVSX: | |
10462 | if (note->namesz == 6 | |
4b24dd1a AM |
10463 | && strcmp (note->namedata, "LINUX") == 0) |
10464 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10465 | else |
0a1b45a2 | 10466 | return true; |
cb2366c1 EBM |
10467 | |
10468 | case NT_PPC_TM_SPR: | |
10469 | if (note->namesz == 6 | |
4b24dd1a AM |
10470 | && strcmp (note->namedata, "LINUX") == 0) |
10471 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10472 | else |
0a1b45a2 | 10473 | return true; |
cb2366c1 EBM |
10474 | |
10475 | case NT_PPC_TM_CTAR: | |
10476 | if (note->namesz == 6 | |
4b24dd1a AM |
10477 | && strcmp (note->namedata, "LINUX") == 0) |
10478 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10479 | else |
0a1b45a2 | 10480 | return true; |
cb2366c1 EBM |
10481 | |
10482 | case NT_PPC_TM_CPPR: | |
10483 | if (note->namesz == 6 | |
4b24dd1a AM |
10484 | && strcmp (note->namedata, "LINUX") == 0) |
10485 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10486 | else |
0a1b45a2 | 10487 | return true; |
cb2366c1 EBM |
10488 | |
10489 | case NT_PPC_TM_CDSCR: | |
10490 | if (note->namesz == 6 | |
4b24dd1a AM |
10491 | && strcmp (note->namedata, "LINUX") == 0) |
10492 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10493 | else |
0a1b45a2 | 10494 | return true; |
cb2366c1 | 10495 | |
0675e188 UW |
10496 | case NT_S390_HIGH_GPRS: |
10497 | if (note->namesz == 6 | |
07d6d2b8 AM |
10498 | && strcmp (note->namedata, "LINUX") == 0) |
10499 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10500 | else |
0a1b45a2 | 10501 | return true; |
0675e188 | 10502 | |
d7eeb400 MS |
10503 | case NT_S390_TIMER: |
10504 | if (note->namesz == 6 | |
07d6d2b8 AM |
10505 | && strcmp (note->namedata, "LINUX") == 0) |
10506 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10507 | else |
0a1b45a2 | 10508 | return true; |
d7eeb400 MS |
10509 | |
10510 | case NT_S390_TODCMP: | |
10511 | if (note->namesz == 6 | |
07d6d2b8 AM |
10512 | && strcmp (note->namedata, "LINUX") == 0) |
10513 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10514 | else |
0a1b45a2 | 10515 | return true; |
d7eeb400 MS |
10516 | |
10517 | case NT_S390_TODPREG: | |
10518 | if (note->namesz == 6 | |
07d6d2b8 AM |
10519 | && strcmp (note->namedata, "LINUX") == 0) |
10520 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10521 | else |
0a1b45a2 | 10522 | return true; |
d7eeb400 MS |
10523 | |
10524 | case NT_S390_CTRS: | |
10525 | if (note->namesz == 6 | |
07d6d2b8 AM |
10526 | && strcmp (note->namedata, "LINUX") == 0) |
10527 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10528 | else |
0a1b45a2 | 10529 | return true; |
d7eeb400 MS |
10530 | |
10531 | case NT_S390_PREFIX: | |
10532 | if (note->namesz == 6 | |
07d6d2b8 AM |
10533 | && strcmp (note->namedata, "LINUX") == 0) |
10534 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10535 | else |
0a1b45a2 | 10536 | return true; |
d7eeb400 | 10537 | |
355b81d9 UW |
10538 | case NT_S390_LAST_BREAK: |
10539 | if (note->namesz == 6 | |
07d6d2b8 AM |
10540 | && strcmp (note->namedata, "LINUX") == 0) |
10541 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10542 | else |
0a1b45a2 | 10543 | return true; |
355b81d9 UW |
10544 | |
10545 | case NT_S390_SYSTEM_CALL: | |
10546 | if (note->namesz == 6 | |
07d6d2b8 AM |
10547 | && strcmp (note->namedata, "LINUX") == 0) |
10548 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10549 | else |
0a1b45a2 | 10550 | return true; |
355b81d9 | 10551 | |
abb3f6cc NC |
10552 | case NT_S390_TDB: |
10553 | if (note->namesz == 6 | |
07d6d2b8 AM |
10554 | && strcmp (note->namedata, "LINUX") == 0) |
10555 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10556 | else |
0a1b45a2 | 10557 | return true; |
abb3f6cc | 10558 | |
4ef9f41a AA |
10559 | case NT_S390_VXRS_LOW: |
10560 | if (note->namesz == 6 | |
10561 | && strcmp (note->namedata, "LINUX") == 0) | |
10562 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10563 | else | |
0a1b45a2 | 10564 | return true; |
4ef9f41a AA |
10565 | |
10566 | case NT_S390_VXRS_HIGH: | |
10567 | if (note->namesz == 6 | |
10568 | && strcmp (note->namedata, "LINUX") == 0) | |
10569 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10570 | else | |
0a1b45a2 | 10571 | return true; |
4ef9f41a | 10572 | |
88ab90e8 AA |
10573 | case NT_S390_GS_CB: |
10574 | if (note->namesz == 6 | |
10575 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10576 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 | 10577 | else |
0a1b45a2 | 10578 | return true; |
88ab90e8 AA |
10579 | |
10580 | case NT_S390_GS_BC: | |
10581 | if (note->namesz == 6 | |
10582 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10583 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 | 10584 | else |
0a1b45a2 | 10585 | return true; |
88ab90e8 | 10586 | |
27456742 AK |
10587 | case NT_ARC_V2: |
10588 | if (note->namesz == 6 | |
10589 | && strcmp (note->namedata, "LINUX") == 0) | |
10590 | return elfcore_grok_arc_v2 (abfd, note); | |
10591 | else | |
0a1b45a2 | 10592 | return true; |
27456742 | 10593 | |
faa9a424 UW |
10594 | case NT_ARM_VFP: |
10595 | if (note->namesz == 6 | |
10596 | && strcmp (note->namedata, "LINUX") == 0) | |
10597 | return elfcore_grok_arm_vfp (abfd, note); | |
10598 | else | |
0a1b45a2 | 10599 | return true; |
faa9a424 | 10600 | |
652451f8 YZ |
10601 | case NT_ARM_TLS: |
10602 | if (note->namesz == 6 | |
10603 | && strcmp (note->namedata, "LINUX") == 0) | |
10604 | return elfcore_grok_aarch_tls (abfd, note); | |
10605 | else | |
0a1b45a2 | 10606 | return true; |
652451f8 YZ |
10607 | |
10608 | case NT_ARM_HW_BREAK: | |
10609 | if (note->namesz == 6 | |
10610 | && strcmp (note->namedata, "LINUX") == 0) | |
10611 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10612 | else | |
0a1b45a2 | 10613 | return true; |
652451f8 YZ |
10614 | |
10615 | case NT_ARM_HW_WATCH: | |
10616 | if (note->namesz == 6 | |
10617 | && strcmp (note->namedata, "LINUX") == 0) | |
10618 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10619 | else | |
0a1b45a2 | 10620 | return true; |
652451f8 | 10621 | |
ad1cc4e4 AH |
10622 | case NT_ARM_SVE: |
10623 | if (note->namesz == 6 | |
10624 | && strcmp (note->namedata, "LINUX") == 0) | |
10625 | return elfcore_grok_aarch_sve (abfd, note); | |
10626 | else | |
0a1b45a2 | 10627 | return true; |
ad1cc4e4 | 10628 | |
e6c3b5bf AH |
10629 | case NT_ARM_PAC_MASK: |
10630 | if (note->namesz == 6 | |
10631 | && strcmp (note->namedata, "LINUX") == 0) | |
10632 | return elfcore_grok_aarch_pauth (abfd, note); | |
10633 | else | |
0a1b45a2 | 10634 | return true; |
e6c3b5bf | 10635 | |
f0bbe8ba LM |
10636 | case NT_ARM_TAGGED_ADDR_CTRL: |
10637 | if (note->namesz == 6 | |
10638 | && strcmp (note->namedata, "LINUX") == 0) | |
10639 | return elfcore_grok_aarch_mte (abfd, note); | |
10640 | else | |
10641 | return true; | |
10642 | ||
b63a5e38 AB |
10643 | case NT_GDB_TDESC: |
10644 | if (note->namesz == 4 | |
10645 | && strcmp (note->namedata, "GDB") == 0) | |
10646 | return elfcore_grok_gdb_tdesc (abfd, note); | |
10647 | else | |
0a1b45a2 | 10648 | return true; |
b63a5e38 | 10649 | |
db6092f3 AB |
10650 | case NT_RISCV_CSR: |
10651 | if (note->namesz == 4 | |
10652 | && strcmp (note->namedata, "GDB") == 0) | |
10653 | return elfcore_grok_riscv_csr (abfd, note); | |
10654 | else | |
0a1b45a2 | 10655 | return true; |
db6092f3 | 10656 | |
252b5132 RH |
10657 | case NT_PRPSINFO: |
10658 | case NT_PSINFO: | |
bb0082d6 AM |
10659 | if (bed->elf_backend_grok_psinfo) |
10660 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
0a1b45a2 | 10661 | return true; |
bb0082d6 | 10662 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10663 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10664 | #else |
0a1b45a2 | 10665 | return true; |
252b5132 | 10666 | #endif |
3333a7c3 RM |
10667 | |
10668 | case NT_AUXV: | |
58e07198 | 10669 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10670 | |
451b7c33 TT |
10671 | case NT_FILE: |
10672 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10673 | note); | |
10674 | ||
9015683b TT |
10675 | case NT_SIGINFO: |
10676 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10677 | note); | |
5b2c414d | 10678 | |
894982bf LM |
10679 | case NT_MEMTAG: |
10680 | return elfcore_make_memtag_note_section (abfd, note, 0); | |
252b5132 RH |
10681 | } |
10682 | } | |
10683 | ||
0a1b45a2 | 10684 | static bool |
718175fa JK |
10685 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) |
10686 | { | |
c74f7d1c | 10687 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10688 | |
10689 | if (note->descsz == 0) | |
0a1b45a2 | 10690 | return false; |
30e8ee25 | 10691 | |
c74f7d1c JT |
10692 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10693 | if (build_id == NULL) | |
0a1b45a2 | 10694 | return false; |
718175fa | 10695 | |
c74f7d1c JT |
10696 | build_id->size = note->descsz; |
10697 | memcpy (build_id->data, note->descdata, note->descsz); | |
10698 | abfd->build_id = build_id; | |
718175fa | 10699 | |
0a1b45a2 | 10700 | return true; |
718175fa JK |
10701 | } |
10702 | ||
0a1b45a2 | 10703 | static bool |
718175fa JK |
10704 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) |
10705 | { | |
10706 | switch (note->type) | |
10707 | { | |
10708 | default: | |
0a1b45a2 | 10709 | return true; |
718175fa | 10710 | |
46bed679 L |
10711 | case NT_GNU_PROPERTY_TYPE_0: |
10712 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10713 | ||
718175fa JK |
10714 | case NT_GNU_BUILD_ID: |
10715 | return elfobj_grok_gnu_build_id (abfd, note); | |
10716 | } | |
10717 | } | |
10718 | ||
0a1b45a2 | 10719 | static bool |
e21e5835 NC |
10720 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) |
10721 | { | |
10722 | struct sdt_note *cur = | |
7a6e0d89 AM |
10723 | (struct sdt_note *) bfd_alloc (abfd, |
10724 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10725 | |
10726 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10727 | cur->size = (bfd_size_type) note->descsz; | |
10728 | memcpy (cur->data, note->descdata, note->descsz); | |
10729 | ||
10730 | elf_tdata (abfd)->sdt_note_head = cur; | |
10731 | ||
0a1b45a2 | 10732 | return true; |
e21e5835 NC |
10733 | } |
10734 | ||
0a1b45a2 | 10735 | static bool |
e21e5835 NC |
10736 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) |
10737 | { | |
10738 | switch (note->type) | |
10739 | { | |
10740 | case NT_STAPSDT: | |
10741 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10742 | ||
10743 | default: | |
0a1b45a2 | 10744 | return true; |
e21e5835 NC |
10745 | } |
10746 | } | |
10747 | ||
0a1b45a2 | 10748 | static bool |
aa1ed4a9 JB |
10749 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) |
10750 | { | |
10751 | size_t offset; | |
10752 | ||
b5430a3c | 10753 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10754 | { |
b5430a3c | 10755 | case ELFCLASS32: |
0064d223 | 10756 | if (note->descsz < 108) |
0a1b45a2 | 10757 | return false; |
aa1ed4a9 JB |
10758 | break; |
10759 | ||
b5430a3c | 10760 | case ELFCLASS64: |
0064d223 | 10761 | if (note->descsz < 120) |
0a1b45a2 | 10762 | return false; |
aa1ed4a9 JB |
10763 | break; |
10764 | ||
10765 | default: | |
0a1b45a2 | 10766 | return false; |
aa1ed4a9 JB |
10767 | } |
10768 | ||
0064d223 JB |
10769 | /* Check for version 1 in pr_version. */ |
10770 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
0a1b45a2 | 10771 | return false; |
80a04378 | 10772 | |
0064d223 JB |
10773 | offset = 4; |
10774 | ||
10775 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10776 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10777 | offset += 4; |
10778 | else | |
10779 | { | |
10780 | offset += 4; /* Padding before pr_psinfosz. */ | |
10781 | offset += 8; | |
10782 | } | |
10783 | ||
aa1ed4a9 JB |
10784 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10785 | elf_tdata (abfd)->core->program | |
10786 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10787 | offset += 17; | |
10788 | ||
10789 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10790 | elf_tdata (abfd)->core->command | |
10791 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10792 | offset += 81; |
10793 | ||
10794 | /* Padding before pr_pid. */ | |
10795 | offset += 2; | |
10796 | ||
10797 | /* The pr_pid field was added in version "1a". */ | |
10798 | if (note->descsz < offset + 4) | |
0a1b45a2 | 10799 | return true; |
0064d223 JB |
10800 | |
10801 | elf_tdata (abfd)->core->pid | |
10802 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 | 10803 | |
0a1b45a2 | 10804 | return true; |
aa1ed4a9 JB |
10805 | } |
10806 | ||
0a1b45a2 | 10807 | static bool |
aa1ed4a9 JB |
10808 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) |
10809 | { | |
10810 | size_t offset; | |
10811 | size_t size; | |
24d3e51b | 10812 | size_t min_size; |
aa1ed4a9 | 10813 | |
24d3e51b NC |
10814 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10815 | Also compute minimum size of this note. */ | |
b5430a3c | 10816 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10817 | { |
b5430a3c | 10818 | case ELFCLASS32: |
24d3e51b NC |
10819 | offset = 4 + 4; |
10820 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10821 | break; |
10822 | ||
b5430a3c | 10823 | case ELFCLASS64: |
24d3e51b NC |
10824 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10825 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10826 | break; |
10827 | ||
10828 | default: | |
0a1b45a2 | 10829 | return false; |
aa1ed4a9 JB |
10830 | } |
10831 | ||
24d3e51b | 10832 | if (note->descsz < min_size) |
0a1b45a2 | 10833 | return false; |
24d3e51b NC |
10834 | |
10835 | /* Check for version 1 in pr_version. */ | |
10836 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
0a1b45a2 | 10837 | return false; |
aa1ed4a9 | 10838 | |
24d3e51b NC |
10839 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10840 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10841 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10842 | { |
10843 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10844 | offset += 4 * 2; | |
10845 | } | |
b5430a3c | 10846 | else |
24d3e51b NC |
10847 | { |
10848 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10849 | offset += 8 * 2; | |
10850 | } | |
aa1ed4a9 | 10851 | |
24d3e51b | 10852 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10853 | offset += 4; |
10854 | ||
24d3e51b | 10855 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10856 | if (elf_tdata (abfd)->core->signal == 0) |
10857 | elf_tdata (abfd)->core->signal | |
10858 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10859 | offset += 4; | |
10860 | ||
24d3e51b | 10861 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10862 | elf_tdata (abfd)->core->lwpid |
10863 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10864 | offset += 4; | |
10865 | ||
24d3e51b | 10866 | /* Padding before pr_reg. */ |
b5430a3c | 10867 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10868 | offset += 4; |
10869 | ||
24d3e51b NC |
10870 | /* Make sure that there is enough data remaining in the note. */ |
10871 | if ((note->descsz - offset) < size) | |
0a1b45a2 | 10872 | return false; |
24d3e51b | 10873 | |
aa1ed4a9 JB |
10874 | /* Make a ".reg/999" section and a ".reg" section. */ |
10875 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10876 | size, note->descpos + offset); | |
10877 | } | |
10878 | ||
0a1b45a2 | 10879 | static bool |
aa1ed4a9 JB |
10880 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) |
10881 | { | |
544c67cd JB |
10882 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10883 | ||
aa1ed4a9 JB |
10884 | switch (note->type) |
10885 | { | |
10886 | case NT_PRSTATUS: | |
544c67cd JB |
10887 | if (bed->elf_backend_grok_freebsd_prstatus) |
10888 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
0a1b45a2 | 10889 | return true; |
aa1ed4a9 JB |
10890 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10891 | ||
10892 | case NT_FPREGSET: | |
10893 | return elfcore_grok_prfpreg (abfd, note); | |
10894 | ||
10895 | case NT_PRPSINFO: | |
10896 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10897 | ||
10898 | case NT_FREEBSD_THRMISC: | |
10899 | if (note->namesz == 8) | |
10900 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10901 | else | |
0a1b45a2 | 10902 | return true; |
aa1ed4a9 | 10903 | |
ddb2bbcf JB |
10904 | case NT_FREEBSD_PROCSTAT_PROC: |
10905 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10906 | note); | |
10907 | ||
10908 | case NT_FREEBSD_PROCSTAT_FILES: | |
10909 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10910 | note); | |
10911 | ||
10912 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10913 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10914 | note); | |
10915 | ||
3350c5f5 | 10916 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10917 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10918 | |
aa1ed4a9 JB |
10919 | case NT_X86_XSTATE: |
10920 | if (note->namesz == 8) | |
10921 | return elfcore_grok_xstatereg (abfd, note); | |
10922 | else | |
0a1b45a2 | 10923 | return true; |
aa1ed4a9 | 10924 | |
e6f3b9c3 JB |
10925 | case NT_FREEBSD_PTLWPINFO: |
10926 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10927 | note); | |
10928 | ||
6d5be5d6 JB |
10929 | case NT_ARM_VFP: |
10930 | return elfcore_grok_arm_vfp (abfd, note); | |
10931 | ||
aa1ed4a9 | 10932 | default: |
0a1b45a2 | 10933 | return true; |
aa1ed4a9 JB |
10934 | } |
10935 | } | |
10936 | ||
0a1b45a2 | 10937 | static bool |
217aa764 | 10938 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10939 | { |
10940 | char *cp; | |
10941 | ||
10942 | cp = strchr (note->namedata, '@'); | |
10943 | if (cp != NULL) | |
10944 | { | |
d2b64500 | 10945 | *lwpidp = atoi(cp + 1); |
0a1b45a2 | 10946 | return true; |
50b2bdb7 | 10947 | } |
0a1b45a2 | 10948 | return false; |
50b2bdb7 AM |
10949 | } |
10950 | ||
0a1b45a2 | 10951 | static bool |
217aa764 | 10952 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10953 | { |
80a04378 | 10954 | if (note->descsz <= 0x7c + 31) |
0a1b45a2 | 10955 | return false; |
80a04378 | 10956 | |
50b2bdb7 | 10957 | /* Signal number at offset 0x08. */ |
228e534f | 10958 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10959 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10960 | ||
10961 | /* Process ID at offset 0x50. */ | |
228e534f | 10962 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10963 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10964 | ||
10965 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10966 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10967 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10968 | ||
7720ba9f MK |
10969 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10970 | note); | |
50b2bdb7 AM |
10971 | } |
10972 | ||
0a1b45a2 | 10973 | static bool |
217aa764 | 10974 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10975 | { |
10976 | int lwp; | |
10977 | ||
10978 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10979 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10980 | |
58e07198 | 10981 | switch (note->type) |
50b2bdb7 | 10982 | { |
58e07198 | 10983 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10984 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10985 | find this note before any of the others, which is fine, |
10986 | since the kernel writes this note out first when it | |
10987 | creates a core file. */ | |
50b2bdb7 | 10988 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10989 | case NT_NETBSDCORE_AUXV: |
10990 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10991 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
06d949ec KR |
10992 | case NT_NETBSDCORE_LWPSTATUS: |
10993 | return elfcore_make_note_pseudosection (abfd, | |
10994 | ".note.netbsdcore.lwpstatus", | |
10995 | note); | |
58e07198 CZ |
10996 | default: |
10997 | break; | |
50b2bdb7 AM |
10998 | } |
10999 | ||
06d949ec | 11000 | /* As of March 2020 there are no other machine-independent notes |
b4db1224 JT |
11001 | defined for NetBSD core files. If the note type is less |
11002 | than the start of the machine-dependent note types, we don't | |
11003 | understand it. */ | |
47d9a591 | 11004 | |
b4db1224 | 11005 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
0a1b45a2 | 11006 | return true; |
50b2bdb7 AM |
11007 | |
11008 | ||
11009 | switch (bfd_get_arch (abfd)) | |
11010 | { | |
08a40648 AM |
11011 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
11012 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 | 11013 | |
015ec493 | 11014 | case bfd_arch_aarch64: |
50b2bdb7 AM |
11015 | case bfd_arch_alpha: |
11016 | case bfd_arch_sparc: | |
11017 | switch (note->type) | |
08a40648 AM |
11018 | { |
11019 | case NT_NETBSDCORE_FIRSTMACH+0: | |
11020 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 11021 | |
08a40648 AM |
11022 | case NT_NETBSDCORE_FIRSTMACH+2: |
11023 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 11024 | |
08a40648 | 11025 | default: |
0a1b45a2 | 11026 | return true; |
08a40648 | 11027 | } |
50b2bdb7 | 11028 | |
58e07198 CZ |
11029 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
11030 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
11031 | structure which lacks GBR. */ | |
11032 | ||
11033 | case bfd_arch_sh: | |
11034 | switch (note->type) | |
11035 | { | |
11036 | case NT_NETBSDCORE_FIRSTMACH+3: | |
11037 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11038 | ||
11039 | case NT_NETBSDCORE_FIRSTMACH+5: | |
11040 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11041 | ||
11042 | default: | |
0a1b45a2 | 11043 | return true; |
58e07198 CZ |
11044 | } |
11045 | ||
08a40648 AM |
11046 | /* On all other arch's, PT_GETREGS == mach+1 and |
11047 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
11048 | |
11049 | default: | |
11050 | switch (note->type) | |
08a40648 AM |
11051 | { |
11052 | case NT_NETBSDCORE_FIRSTMACH+1: | |
11053 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 11054 | |
08a40648 AM |
11055 | case NT_NETBSDCORE_FIRSTMACH+3: |
11056 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 11057 | |
08a40648 | 11058 | default: |
0a1b45a2 | 11059 | return true; |
08a40648 | 11060 | } |
50b2bdb7 AM |
11061 | } |
11062 | /* NOTREACHED */ | |
11063 | } | |
11064 | ||
0a1b45a2 | 11065 | static bool |
67cc5033 MK |
11066 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
11067 | { | |
80a04378 | 11068 | if (note->descsz <= 0x48 + 31) |
0a1b45a2 | 11069 | return false; |
80a04378 | 11070 | |
67cc5033 | 11071 | /* Signal number at offset 0x08. */ |
228e534f | 11072 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
11073 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
11074 | ||
11075 | /* Process ID at offset 0x20. */ | |
228e534f | 11076 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
11077 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
11078 | ||
11079 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 11080 | elf_tdata (abfd)->core->command |
67cc5033 MK |
11081 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
11082 | ||
0a1b45a2 | 11083 | return true; |
67cc5033 MK |
11084 | } |
11085 | ||
0a1b45a2 | 11086 | static bool |
67cc5033 MK |
11087 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) |
11088 | { | |
11089 | if (note->type == NT_OPENBSD_PROCINFO) | |
11090 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
11091 | ||
11092 | if (note->type == NT_OPENBSD_REGS) | |
11093 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11094 | ||
11095 | if (note->type == NT_OPENBSD_FPREGS) | |
11096 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11097 | ||
11098 | if (note->type == NT_OPENBSD_XFPREGS) | |
11099 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
11100 | ||
11101 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 11102 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
11103 | |
11104 | if (note->type == NT_OPENBSD_WCOOKIE) | |
11105 | { | |
11106 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
11107 | SEC_HAS_CONTENTS); | |
11108 | ||
11109 | if (sect == NULL) | |
0a1b45a2 | 11110 | return false; |
67cc5033 MK |
11111 | sect->size = note->descsz; |
11112 | sect->filepos = note->descpos; | |
11113 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
11114 | ||
0a1b45a2 | 11115 | return true; |
67cc5033 MK |
11116 | } |
11117 | ||
0a1b45a2 | 11118 | return true; |
67cc5033 MK |
11119 | } |
11120 | ||
0a1b45a2 | 11121 | static bool |
d3fd4074 | 11122 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
11123 | { |
11124 | void *ddata = note->descdata; | |
11125 | char buf[100]; | |
11126 | char *name; | |
11127 | asection *sect; | |
f8843e87 AM |
11128 | short sig; |
11129 | unsigned flags; | |
07c6e936 | 11130 | |
80a04378 | 11131 | if (note->descsz < 16) |
0a1b45a2 | 11132 | return false; |
80a04378 | 11133 | |
07c6e936 | 11134 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 11135 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 11136 | |
f8843e87 AM |
11137 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
11138 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
11139 | ||
11140 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
11141 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
11142 | |
11143 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
11144 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
11145 | { | |
228e534f AM |
11146 | elf_tdata (abfd)->core->signal = sig; |
11147 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 11148 | } |
07c6e936 | 11149 | |
f8843e87 AM |
11150 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
11151 | do not come from signals so we make sure we set the current | |
11152 | thread just in case. */ | |
11153 | if (flags & 0x00000080) | |
228e534f | 11154 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
11155 | |
11156 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 11157 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 11158 | |
a50b1753 | 11159 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 | 11160 | if (name == NULL) |
0a1b45a2 | 11161 | return false; |
07c6e936 NC |
11162 | strcpy (name, buf); |
11163 | ||
117ed4f8 | 11164 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 | 11165 | if (sect == NULL) |
0a1b45a2 | 11166 | return false; |
07c6e936 | 11167 | |
07d6d2b8 AM |
11168 | sect->size = note->descsz; |
11169 | sect->filepos = note->descpos; | |
07c6e936 NC |
11170 | sect->alignment_power = 2; |
11171 | ||
11172 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
11173 | } | |
11174 | ||
0a1b45a2 | 11175 | static bool |
d69f560c KW |
11176 | elfcore_grok_nto_regs (bfd *abfd, |
11177 | Elf_Internal_Note *note, | |
d3fd4074 | 11178 | long tid, |
d69f560c | 11179 | char *base) |
07c6e936 NC |
11180 | { |
11181 | char buf[100]; | |
11182 | char *name; | |
11183 | asection *sect; | |
11184 | ||
d69f560c | 11185 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 11186 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 11187 | |
a50b1753 | 11188 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 | 11189 | if (name == NULL) |
0a1b45a2 | 11190 | return false; |
07c6e936 NC |
11191 | strcpy (name, buf); |
11192 | ||
117ed4f8 | 11193 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 | 11194 | if (sect == NULL) |
0a1b45a2 | 11195 | return false; |
07c6e936 | 11196 | |
07d6d2b8 AM |
11197 | sect->size = note->descsz; |
11198 | sect->filepos = note->descpos; | |
07c6e936 NC |
11199 | sect->alignment_power = 2; |
11200 | ||
f8843e87 | 11201 | /* This is the current thread. */ |
228e534f | 11202 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 11203 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 | 11204 | |
0a1b45a2 | 11205 | return true; |
07c6e936 NC |
11206 | } |
11207 | ||
11208 | #define BFD_QNT_CORE_INFO 7 | |
11209 | #define BFD_QNT_CORE_STATUS 8 | |
11210 | #define BFD_QNT_CORE_GREG 9 | |
11211 | #define BFD_QNT_CORE_FPREG 10 | |
11212 | ||
0a1b45a2 | 11213 | static bool |
217aa764 | 11214 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
11215 | { |
11216 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 11217 | tid from the previous call to pass down to the next gregs |
07c6e936 | 11218 | function. */ |
d3fd4074 | 11219 | static long tid = 1; |
07c6e936 NC |
11220 | |
11221 | switch (note->type) | |
11222 | { | |
d69f560c KW |
11223 | case BFD_QNT_CORE_INFO: |
11224 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
11225 | case BFD_QNT_CORE_STATUS: | |
11226 | return elfcore_grok_nto_status (abfd, note, &tid); | |
11227 | case BFD_QNT_CORE_GREG: | |
11228 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
11229 | case BFD_QNT_CORE_FPREG: | |
11230 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
11231 | default: | |
0a1b45a2 | 11232 | return true; |
07c6e936 NC |
11233 | } |
11234 | } | |
11235 | ||
0a1b45a2 | 11236 | static bool |
b15fa79e AM |
11237 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) |
11238 | { | |
11239 | char *name; | |
11240 | asection *sect; | |
11241 | size_t len; | |
11242 | ||
11243 | /* Use note name as section name. */ | |
11244 | len = note->namesz; | |
a50b1753 | 11245 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e | 11246 | if (name == NULL) |
0a1b45a2 | 11247 | return false; |
b15fa79e AM |
11248 | memcpy (name, note->namedata, len); |
11249 | name[len - 1] = '\0'; | |
11250 | ||
11251 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
11252 | if (sect == NULL) | |
0a1b45a2 | 11253 | return false; |
b15fa79e | 11254 | |
07d6d2b8 AM |
11255 | sect->size = note->descsz; |
11256 | sect->filepos = note->descpos; | |
b15fa79e AM |
11257 | sect->alignment_power = 1; |
11258 | ||
0a1b45a2 | 11259 | return true; |
b15fa79e AM |
11260 | } |
11261 | ||
7c76fa91 MS |
11262 | /* Function: elfcore_write_note |
11263 | ||
47d9a591 | 11264 | Inputs: |
a39f3346 | 11265 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
11266 | name of note |
11267 | type of note | |
11268 | data for note | |
11269 | size of data for note | |
11270 | ||
a39f3346 AM |
11271 | Writes note to end of buffer. ELF64 notes are written exactly as |
11272 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
11273 | that they ought to have 8-byte namesz and descsz field, and have | |
11274 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
11275 | ||
7c76fa91 | 11276 | Return: |
a39f3346 | 11277 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
11278 | |
11279 | char * | |
a39f3346 | 11280 | elfcore_write_note (bfd *abfd, |
217aa764 | 11281 | char *buf, |
a39f3346 | 11282 | int *bufsiz, |
217aa764 | 11283 | const char *name, |
a39f3346 | 11284 | int type, |
217aa764 | 11285 | const void *input, |
a39f3346 | 11286 | int size) |
7c76fa91 MS |
11287 | { |
11288 | Elf_External_Note *xnp; | |
d4c88bbb | 11289 | size_t namesz; |
d4c88bbb | 11290 | size_t newspace; |
a39f3346 | 11291 | char *dest; |
7c76fa91 | 11292 | |
d4c88bbb | 11293 | namesz = 0; |
d4c88bbb | 11294 | if (name != NULL) |
a39f3346 | 11295 | namesz = strlen (name) + 1; |
d4c88bbb | 11296 | |
a39f3346 | 11297 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 11298 | |
a50b1753 | 11299 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
11300 | if (buf == NULL) |
11301 | return buf; | |
a39f3346 | 11302 | dest = buf + *bufsiz; |
7c76fa91 MS |
11303 | *bufsiz += newspace; |
11304 | xnp = (Elf_External_Note *) dest; | |
11305 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
11306 | H_PUT_32 (abfd, size, xnp->descsz); | |
11307 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
11308 | dest = xnp->name; |
11309 | if (name != NULL) | |
11310 | { | |
11311 | memcpy (dest, name, namesz); | |
11312 | dest += namesz; | |
a39f3346 | 11313 | while (namesz & 3) |
d4c88bbb AM |
11314 | { |
11315 | *dest++ = '\0'; | |
a39f3346 | 11316 | ++namesz; |
d4c88bbb AM |
11317 | } |
11318 | } | |
11319 | memcpy (dest, input, size); | |
a39f3346 AM |
11320 | dest += size; |
11321 | while (size & 3) | |
11322 | { | |
11323 | *dest++ = '\0'; | |
11324 | ++size; | |
11325 | } | |
11326 | return buf; | |
7c76fa91 MS |
11327 | } |
11328 | ||
602f1657 AM |
11329 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11330 | possible string truncation. The "truncation" is not a bug. We | |
11331 | have an external representation of structs with fields that are not | |
11332 | necessarily NULL terminated and corresponding internal | |
11333 | representation fields that are one larger so that they can always | |
11334 | be NULL terminated. | |
11335 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11336 | diagnostics inside functions, giving a hard error if you try to use | |
11337 | the finer control available with later versions. | |
11338 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11339 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11340 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11341 | (*) Depending on your system header files! */ | |
d99b4b92 | 11342 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11343 | # pragma GCC diagnostic push |
11344 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11345 | #endif |
7c76fa91 | 11346 | char * |
217aa764 AM |
11347 | elfcore_write_prpsinfo (bfd *abfd, |
11348 | char *buf, | |
11349 | int *bufsiz, | |
11350 | const char *fname, | |
11351 | const char *psargs) | |
7c76fa91 | 11352 | { |
183e98be AM |
11353 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11354 | ||
11355 | if (bed->elf_backend_write_core_note != NULL) | |
11356 | { | |
11357 | char *ret; | |
11358 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11359 | NT_PRPSINFO, fname, psargs); | |
11360 | if (ret != NULL) | |
11361 | return ret; | |
11362 | } | |
7c76fa91 | 11363 | |
1f20dca5 | 11364 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11365 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11366 | if (bed->s->elfclass == ELFCLASS32) |
11367 | { | |
602f1657 | 11368 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11369 | psinfo32_t data; |
11370 | int note_type = NT_PSINFO; | |
602f1657 | 11371 | # else |
183e98be AM |
11372 | prpsinfo32_t data; |
11373 | int note_type = NT_PRPSINFO; | |
602f1657 | 11374 | # endif |
183e98be AM |
11375 | |
11376 | memset (&data, 0, sizeof (data)); | |
11377 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11378 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11379 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11380 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11381 | } |
11382 | else | |
602f1657 | 11383 | # endif |
183e98be | 11384 | { |
602f1657 | 11385 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11386 | psinfo_t data; |
11387 | int note_type = NT_PSINFO; | |
602f1657 | 11388 | # else |
183e98be AM |
11389 | prpsinfo_t data; |
11390 | int note_type = NT_PRPSINFO; | |
602f1657 | 11391 | # endif |
7c76fa91 | 11392 | |
183e98be AM |
11393 | memset (&data, 0, sizeof (data)); |
11394 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11395 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11396 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11397 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11398 | } |
7c76fa91 MS |
11399 | #endif /* PSINFO_T or PRPSINFO_T */ |
11400 | ||
1f20dca5 UW |
11401 | free (buf); |
11402 | return NULL; | |
11403 | } | |
d99b4b92 | 11404 | #if GCC_VERSION >= 8000 |
602f1657 | 11405 | # pragma GCC diagnostic pop |
d99b4b92 | 11406 | #endif |
1f20dca5 | 11407 | |
70a38d42 SDJ |
11408 | char * |
11409 | elfcore_write_linux_prpsinfo32 | |
11410 | (bfd *abfd, char *buf, int *bufsiz, | |
11411 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11412 | { | |
a2f63b2e MR |
11413 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11414 | { | |
11415 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11416 | ||
11417 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11418 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11419 | &data, sizeof (data)); | |
11420 | } | |
11421 | else | |
11422 | { | |
11423 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11424 | |
a2f63b2e MR |
11425 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11426 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11427 | &data, sizeof (data)); | |
11428 | } | |
70a38d42 SDJ |
11429 | } |
11430 | ||
11431 | char * | |
11432 | elfcore_write_linux_prpsinfo64 | |
11433 | (bfd *abfd, char *buf, int *bufsiz, | |
11434 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11435 | { | |
3c9a7b0d MR |
11436 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11437 | { | |
11438 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11439 | ||
11440 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11441 | return elfcore_write_note (abfd, buf, bufsiz, | |
11442 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11443 | } | |
11444 | else | |
11445 | { | |
11446 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11447 | |
3c9a7b0d MR |
11448 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11449 | return elfcore_write_note (abfd, buf, bufsiz, | |
11450 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11451 | } | |
70a38d42 SDJ |
11452 | } |
11453 | ||
7c76fa91 | 11454 | char * |
217aa764 AM |
11455 | elfcore_write_prstatus (bfd *abfd, |
11456 | char *buf, | |
11457 | int *bufsiz, | |
11458 | long pid, | |
11459 | int cursig, | |
11460 | const void *gregs) | |
7c76fa91 | 11461 | { |
183e98be | 11462 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11463 | |
183e98be AM |
11464 | if (bed->elf_backend_write_core_note != NULL) |
11465 | { | |
11466 | char *ret; | |
11467 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11468 | NT_PRSTATUS, | |
11469 | pid, cursig, gregs); | |
11470 | if (ret != NULL) | |
11471 | return ret; | |
11472 | } | |
11473 | ||
1f20dca5 | 11474 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11475 | #if defined (HAVE_PRSTATUS32_T) |
11476 | if (bed->s->elfclass == ELFCLASS32) | |
11477 | { | |
11478 | prstatus32_t prstat; | |
11479 | ||
11480 | memset (&prstat, 0, sizeof (prstat)); | |
11481 | prstat.pr_pid = pid; | |
11482 | prstat.pr_cursig = cursig; | |
11483 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11484 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11485 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11486 | } | |
11487 | else | |
11488 | #endif | |
11489 | { | |
11490 | prstatus_t prstat; | |
11491 | ||
11492 | memset (&prstat, 0, sizeof (prstat)); | |
11493 | prstat.pr_pid = pid; | |
11494 | prstat.pr_cursig = cursig; | |
11495 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11496 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11497 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11498 | } | |
7c76fa91 MS |
11499 | #endif /* HAVE_PRSTATUS_T */ |
11500 | ||
1f20dca5 UW |
11501 | free (buf); |
11502 | return NULL; | |
11503 | } | |
11504 | ||
51316059 MS |
11505 | #if defined (HAVE_LWPSTATUS_T) |
11506 | char * | |
217aa764 AM |
11507 | elfcore_write_lwpstatus (bfd *abfd, |
11508 | char *buf, | |
11509 | int *bufsiz, | |
11510 | long pid, | |
11511 | int cursig, | |
11512 | const void *gregs) | |
51316059 MS |
11513 | { |
11514 | lwpstatus_t lwpstat; | |
183e98be | 11515 | const char *note_name = "CORE"; |
51316059 MS |
11516 | |
11517 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11518 | lwpstat.pr_lwpid = pid >> 16; | |
11519 | lwpstat.pr_cursig = cursig; | |
11520 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11521 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11522 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11523 | #if !defined(gregs) | |
11524 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11525 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11526 | #else | |
11527 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11528 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11529 | #endif | |
11530 | #endif | |
47d9a591 | 11531 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11532 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11533 | } | |
11534 | #endif /* HAVE_LWPSTATUS_T */ | |
11535 | ||
7c76fa91 MS |
11536 | #if defined (HAVE_PSTATUS_T) |
11537 | char * | |
217aa764 AM |
11538 | elfcore_write_pstatus (bfd *abfd, |
11539 | char *buf, | |
11540 | int *bufsiz, | |
11541 | long pid, | |
6c10990d NC |
11542 | int cursig ATTRIBUTE_UNUSED, |
11543 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11544 | { |
183e98be AM |
11545 | const char *note_name = "CORE"; |
11546 | #if defined (HAVE_PSTATUS32_T) | |
11547 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11548 | |
183e98be AM |
11549 | if (bed->s->elfclass == ELFCLASS32) |
11550 | { | |
11551 | pstatus32_t pstat; | |
11552 | ||
11553 | memset (&pstat, 0, sizeof (pstat)); | |
11554 | pstat.pr_pid = pid & 0xffff; | |
11555 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11556 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11557 | return buf; | |
11558 | } | |
11559 | else | |
11560 | #endif | |
11561 | { | |
11562 | pstatus_t pstat; | |
11563 | ||
11564 | memset (&pstat, 0, sizeof (pstat)); | |
11565 | pstat.pr_pid = pid & 0xffff; | |
11566 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11567 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11568 | return buf; | |
11569 | } | |
7c76fa91 MS |
11570 | } |
11571 | #endif /* HAVE_PSTATUS_T */ | |
11572 | ||
11573 | char * | |
217aa764 AM |
11574 | elfcore_write_prfpreg (bfd *abfd, |
11575 | char *buf, | |
11576 | int *bufsiz, | |
11577 | const void *fpregs, | |
11578 | int size) | |
7c76fa91 | 11579 | { |
183e98be | 11580 | const char *note_name = "CORE"; |
47d9a591 | 11581 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11582 | note_name, NT_FPREGSET, fpregs, size); |
11583 | } | |
11584 | ||
11585 | char * | |
217aa764 AM |
11586 | elfcore_write_prxfpreg (bfd *abfd, |
11587 | char *buf, | |
11588 | int *bufsiz, | |
11589 | const void *xfpregs, | |
11590 | int size) | |
7c76fa91 MS |
11591 | { |
11592 | char *note_name = "LINUX"; | |
47d9a591 | 11593 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11594 | note_name, NT_PRXFPREG, xfpregs, size); |
11595 | } | |
11596 | ||
4339cae0 L |
11597 | char * |
11598 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11599 | const void *xfpregs, int size) | |
11600 | { | |
97de3545 JB |
11601 | char *note_name; |
11602 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11603 | note_name = "FreeBSD"; | |
11604 | else | |
11605 | note_name = "LINUX"; | |
4339cae0 L |
11606 | return elfcore_write_note (abfd, buf, bufsiz, |
11607 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11608 | } | |
11609 | ||
97753bd5 AM |
11610 | char * |
11611 | elfcore_write_ppc_vmx (bfd *abfd, | |
11612 | char *buf, | |
11613 | int *bufsiz, | |
11614 | const void *ppc_vmx, | |
11615 | int size) | |
11616 | { | |
11617 | char *note_name = "LINUX"; | |
11618 | return elfcore_write_note (abfd, buf, bufsiz, | |
11619 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11620 | } | |
11621 | ||
89eeb0bc LM |
11622 | char * |
11623 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11624 | char *buf, |
11625 | int *bufsiz, | |
11626 | const void *ppc_vsx, | |
11627 | int size) | |
89eeb0bc LM |
11628 | { |
11629 | char *note_name = "LINUX"; | |
11630 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11631 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11632 | } |
11633 | ||
cb2366c1 EBM |
11634 | char * |
11635 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11636 | char *buf, |
11637 | int *bufsiz, | |
11638 | const void *ppc_tar, | |
11639 | int size) | |
cb2366c1 EBM |
11640 | { |
11641 | char *note_name = "LINUX"; | |
11642 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11643 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11644 | } |
11645 | ||
11646 | char * | |
11647 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11648 | char *buf, |
11649 | int *bufsiz, | |
11650 | const void *ppc_ppr, | |
11651 | int size) | |
cb2366c1 EBM |
11652 | { |
11653 | char *note_name = "LINUX"; | |
11654 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11655 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11656 | } |
11657 | ||
11658 | char * | |
11659 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11660 | char *buf, |
11661 | int *bufsiz, | |
11662 | const void *ppc_dscr, | |
11663 | int size) | |
cb2366c1 EBM |
11664 | { |
11665 | char *note_name = "LINUX"; | |
11666 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11667 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11668 | } |
11669 | ||
11670 | char * | |
11671 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11672 | char *buf, |
11673 | int *bufsiz, | |
11674 | const void *ppc_ebb, | |
11675 | int size) | |
cb2366c1 EBM |
11676 | { |
11677 | char *note_name = "LINUX"; | |
11678 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11679 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11680 | } |
11681 | ||
11682 | char * | |
11683 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11684 | char *buf, |
11685 | int *bufsiz, | |
11686 | const void *ppc_pmu, | |
11687 | int size) | |
cb2366c1 EBM |
11688 | { |
11689 | char *note_name = "LINUX"; | |
11690 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11691 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11692 | } |
11693 | ||
11694 | char * | |
11695 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11696 | char *buf, |
11697 | int *bufsiz, | |
11698 | const void *ppc_tm_cgpr, | |
11699 | int size) | |
cb2366c1 EBM |
11700 | { |
11701 | char *note_name = "LINUX"; | |
11702 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11703 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11704 | } |
11705 | ||
11706 | char * | |
11707 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11708 | char *buf, |
11709 | int *bufsiz, | |
11710 | const void *ppc_tm_cfpr, | |
11711 | int size) | |
cb2366c1 EBM |
11712 | { |
11713 | char *note_name = "LINUX"; | |
11714 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11715 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11716 | } |
11717 | ||
11718 | char * | |
11719 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11720 | char *buf, |
11721 | int *bufsiz, | |
11722 | const void *ppc_tm_cvmx, | |
11723 | int size) | |
cb2366c1 EBM |
11724 | { |
11725 | char *note_name = "LINUX"; | |
11726 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11727 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11728 | } |
11729 | ||
11730 | char * | |
11731 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11732 | char *buf, |
11733 | int *bufsiz, | |
11734 | const void *ppc_tm_cvsx, | |
11735 | int size) | |
cb2366c1 EBM |
11736 | { |
11737 | char *note_name = "LINUX"; | |
11738 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11739 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11740 | } |
11741 | ||
11742 | char * | |
11743 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11744 | char *buf, |
11745 | int *bufsiz, | |
11746 | const void *ppc_tm_spr, | |
11747 | int size) | |
cb2366c1 EBM |
11748 | { |
11749 | char *note_name = "LINUX"; | |
11750 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11751 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11752 | } |
11753 | ||
11754 | char * | |
11755 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11756 | char *buf, |
11757 | int *bufsiz, | |
11758 | const void *ppc_tm_ctar, | |
11759 | int size) | |
cb2366c1 EBM |
11760 | { |
11761 | char *note_name = "LINUX"; | |
11762 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11763 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11764 | } |
11765 | ||
11766 | char * | |
11767 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11768 | char *buf, |
11769 | int *bufsiz, | |
11770 | const void *ppc_tm_cppr, | |
11771 | int size) | |
cb2366c1 EBM |
11772 | { |
11773 | char *note_name = "LINUX"; | |
11774 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11775 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11776 | } |
11777 | ||
11778 | char * | |
11779 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11780 | char *buf, |
11781 | int *bufsiz, | |
11782 | const void *ppc_tm_cdscr, | |
11783 | int size) | |
cb2366c1 EBM |
11784 | { |
11785 | char *note_name = "LINUX"; | |
11786 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11787 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11788 | } |
11789 | ||
0675e188 UW |
11790 | static char * |
11791 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11792 | char *buf, | |
11793 | int *bufsiz, | |
11794 | const void *s390_high_gprs, | |
11795 | int size) | |
11796 | { | |
11797 | char *note_name = "LINUX"; | |
11798 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11799 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11800 | s390_high_gprs, size); |
11801 | } | |
11802 | ||
d7eeb400 MS |
11803 | char * |
11804 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11805 | char *buf, |
11806 | int *bufsiz, | |
11807 | const void *s390_timer, | |
11808 | int size) | |
d7eeb400 MS |
11809 | { |
11810 | char *note_name = "LINUX"; | |
11811 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11812 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11813 | } |
11814 | ||
11815 | char * | |
11816 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11817 | char *buf, |
11818 | int *bufsiz, | |
11819 | const void *s390_todcmp, | |
11820 | int size) | |
d7eeb400 MS |
11821 | { |
11822 | char *note_name = "LINUX"; | |
11823 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11824 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11825 | } |
11826 | ||
11827 | char * | |
11828 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11829 | char *buf, |
11830 | int *bufsiz, | |
11831 | const void *s390_todpreg, | |
11832 | int size) | |
d7eeb400 MS |
11833 | { |
11834 | char *note_name = "LINUX"; | |
11835 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11836 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11837 | } |
11838 | ||
11839 | char * | |
11840 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11841 | char *buf, |
11842 | int *bufsiz, | |
11843 | const void *s390_ctrs, | |
11844 | int size) | |
d7eeb400 MS |
11845 | { |
11846 | char *note_name = "LINUX"; | |
11847 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11848 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11849 | } |
11850 | ||
11851 | char * | |
11852 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11853 | char *buf, |
11854 | int *bufsiz, | |
11855 | const void *s390_prefix, | |
11856 | int size) | |
d7eeb400 MS |
11857 | { |
11858 | char *note_name = "LINUX"; | |
11859 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11860 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11861 | } |
11862 | ||
355b81d9 UW |
11863 | char * |
11864 | elfcore_write_s390_last_break (bfd *abfd, | |
11865 | char *buf, | |
11866 | int *bufsiz, | |
11867 | const void *s390_last_break, | |
11868 | int size) | |
11869 | { | |
11870 | char *note_name = "LINUX"; | |
11871 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11872 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11873 | s390_last_break, size); |
11874 | } | |
11875 | ||
11876 | char * | |
11877 | elfcore_write_s390_system_call (bfd *abfd, | |
11878 | char *buf, | |
11879 | int *bufsiz, | |
11880 | const void *s390_system_call, | |
11881 | int size) | |
11882 | { | |
11883 | char *note_name = "LINUX"; | |
11884 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11885 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11886 | s390_system_call, size); |
11887 | } | |
11888 | ||
abb3f6cc NC |
11889 | char * |
11890 | elfcore_write_s390_tdb (bfd *abfd, | |
11891 | char *buf, | |
11892 | int *bufsiz, | |
11893 | const void *s390_tdb, | |
11894 | int size) | |
11895 | { | |
11896 | char *note_name = "LINUX"; | |
11897 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11898 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11899 | } |
11900 | ||
4ef9f41a AA |
11901 | char * |
11902 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11903 | char *buf, | |
11904 | int *bufsiz, | |
11905 | const void *s390_vxrs_low, | |
11906 | int size) | |
11907 | { | |
11908 | char *note_name = "LINUX"; | |
11909 | return elfcore_write_note (abfd, buf, bufsiz, | |
11910 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11911 | } | |
11912 | ||
11913 | char * | |
11914 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11915 | char *buf, | |
11916 | int *bufsiz, | |
11917 | const void *s390_vxrs_high, | |
11918 | int size) | |
11919 | { | |
11920 | char *note_name = "LINUX"; | |
11921 | return elfcore_write_note (abfd, buf, bufsiz, | |
11922 | note_name, NT_S390_VXRS_HIGH, | |
11923 | s390_vxrs_high, size); | |
11924 | } | |
11925 | ||
88ab90e8 AA |
11926 | char * |
11927 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11928 | char *buf, | |
11929 | int *bufsiz, | |
11930 | const void *s390_gs_cb, | |
11931 | int size) | |
11932 | { | |
11933 | char *note_name = "LINUX"; | |
11934 | return elfcore_write_note (abfd, buf, bufsiz, | |
11935 | note_name, NT_S390_GS_CB, | |
11936 | s390_gs_cb, size); | |
11937 | } | |
11938 | ||
11939 | char * | |
11940 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11941 | char *buf, | |
11942 | int *bufsiz, | |
11943 | const void *s390_gs_bc, | |
11944 | int size) | |
11945 | { | |
11946 | char *note_name = "LINUX"; | |
11947 | return elfcore_write_note (abfd, buf, bufsiz, | |
11948 | note_name, NT_S390_GS_BC, | |
11949 | s390_gs_bc, size); | |
11950 | } | |
11951 | ||
faa9a424 UW |
11952 | char * |
11953 | elfcore_write_arm_vfp (bfd *abfd, | |
11954 | char *buf, | |
11955 | int *bufsiz, | |
11956 | const void *arm_vfp, | |
11957 | int size) | |
11958 | { | |
11959 | char *note_name = "LINUX"; | |
11960 | return elfcore_write_note (abfd, buf, bufsiz, | |
11961 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11962 | } | |
11963 | ||
652451f8 YZ |
11964 | char * |
11965 | elfcore_write_aarch_tls (bfd *abfd, | |
11966 | char *buf, | |
11967 | int *bufsiz, | |
11968 | const void *aarch_tls, | |
11969 | int size) | |
11970 | { | |
11971 | char *note_name = "LINUX"; | |
11972 | return elfcore_write_note (abfd, buf, bufsiz, | |
11973 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11974 | } | |
11975 | ||
11976 | char * | |
11977 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11978 | char *buf, | |
11979 | int *bufsiz, | |
11980 | const void *aarch_hw_break, | |
11981 | int size) | |
11982 | { | |
11983 | char *note_name = "LINUX"; | |
11984 | return elfcore_write_note (abfd, buf, bufsiz, | |
11985 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11986 | } | |
11987 | ||
11988 | char * | |
11989 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11990 | char *buf, | |
11991 | int *bufsiz, | |
11992 | const void *aarch_hw_watch, | |
11993 | int size) | |
11994 | { | |
11995 | char *note_name = "LINUX"; | |
11996 | return elfcore_write_note (abfd, buf, bufsiz, | |
11997 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11998 | } | |
11999 | ||
ad1cc4e4 AH |
12000 | char * |
12001 | elfcore_write_aarch_sve (bfd *abfd, | |
12002 | char *buf, | |
12003 | int *bufsiz, | |
12004 | const void *aarch_sve, | |
12005 | int size) | |
12006 | { | |
12007 | char *note_name = "LINUX"; | |
12008 | return elfcore_write_note (abfd, buf, bufsiz, | |
12009 | note_name, NT_ARM_SVE, aarch_sve, size); | |
12010 | } | |
12011 | ||
e6c3b5bf AH |
12012 | char * |
12013 | elfcore_write_aarch_pauth (bfd *abfd, | |
12014 | char *buf, | |
12015 | int *bufsiz, | |
12016 | const void *aarch_pauth, | |
12017 | int size) | |
12018 | { | |
12019 | char *note_name = "LINUX"; | |
12020 | return elfcore_write_note (abfd, buf, bufsiz, | |
12021 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
12022 | } | |
12023 | ||
f0bbe8ba LM |
12024 | char * |
12025 | elfcore_write_aarch_mte (bfd *abfd, | |
12026 | char *buf, | |
12027 | int *bufsiz, | |
12028 | const void *aarch_mte, | |
12029 | int size) | |
12030 | { | |
12031 | char *note_name = "LINUX"; | |
12032 | return elfcore_write_note (abfd, buf, bufsiz, | |
12033 | note_name, NT_ARM_TAGGED_ADDR_CTRL, | |
12034 | aarch_mte, | |
12035 | size); | |
12036 | } | |
12037 | ||
27456742 AK |
12038 | char * |
12039 | elfcore_write_arc_v2 (bfd *abfd, | |
12040 | char *buf, | |
12041 | int *bufsiz, | |
12042 | const void *arc_v2, | |
12043 | int size) | |
12044 | { | |
12045 | char *note_name = "LINUX"; | |
12046 | return elfcore_write_note (abfd, buf, bufsiz, | |
12047 | note_name, NT_ARC_V2, arc_v2, size); | |
12048 | } | |
12049 | ||
db6092f3 AB |
12050 | /* Write the buffer of csr values in CSRS (length SIZE) into the note |
12051 | buffer BUF and update *BUFSIZ. ABFD is the bfd the note is being | |
12052 | written into. Return a pointer to the new start of the note buffer, to | |
12053 | replace BUF which may no longer be valid. */ | |
12054 | ||
12055 | char * | |
12056 | elfcore_write_riscv_csr (bfd *abfd, | |
12057 | char *buf, | |
12058 | int *bufsiz, | |
12059 | const void *csrs, | |
12060 | int size) | |
12061 | { | |
12062 | const char *note_name = "GDB"; | |
12063 | return elfcore_write_note (abfd, buf, bufsiz, | |
12064 | note_name, NT_RISCV_CSR, csrs, size); | |
12065 | } | |
12066 | ||
b63a5e38 AB |
12067 | /* Write the target description (a string) pointed to by TDESC, length |
12068 | SIZE, into the note buffer BUF, and update *BUFSIZ. ABFD is the bfd the | |
12069 | note is being written into. Return a pointer to the new start of the | |
12070 | note buffer, to replace BUF which may no longer be valid. */ | |
12071 | ||
12072 | char * | |
12073 | elfcore_write_gdb_tdesc (bfd *abfd, | |
12074 | char *buf, | |
12075 | int *bufsiz, | |
12076 | const void *tdesc, | |
12077 | int size) | |
12078 | { | |
12079 | const char *note_name = "GDB"; | |
12080 | return elfcore_write_note (abfd, buf, bufsiz, | |
12081 | note_name, NT_GDB_TDESC, tdesc, size); | |
12082 | } | |
12083 | ||
bb864ac1 CES |
12084 | char * |
12085 | elfcore_write_register_note (bfd *abfd, | |
12086 | char *buf, | |
12087 | int *bufsiz, | |
12088 | const char *section, | |
12089 | const void *data, | |
12090 | int size) | |
12091 | { | |
12092 | if (strcmp (section, ".reg2") == 0) | |
12093 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
12094 | if (strcmp (section, ".reg-xfp") == 0) | |
12095 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
12096 | if (strcmp (section, ".reg-xstate") == 0) |
12097 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12098 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
12099 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
12100 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
12101 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
12102 | if (strcmp (section, ".reg-ppc-tar") == 0) |
12103 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
12104 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
12105 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
12106 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
12107 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
12108 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
12109 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
12110 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
12111 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
12112 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
12113 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
12114 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
12115 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
12116 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
12117 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
12118 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
12119 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
12120 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
12121 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
12122 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
12123 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
12124 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
12125 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
12126 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
12127 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
12128 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
12129 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
12130 | if (strcmp (section, ".reg-s390-timer") == 0) |
12131 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
12132 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
12133 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
12134 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
12135 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
12136 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
12137 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
12138 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
12139 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
12140 | if (strcmp (section, ".reg-s390-last-break") == 0) |
12141 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
12142 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
12143 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
12144 | if (strcmp (section, ".reg-s390-tdb") == 0) |
12145 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
12146 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
12147 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
12148 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
12149 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
12150 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
12151 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
12152 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
12153 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
12154 | if (strcmp (section, ".reg-arm-vfp") == 0) |
12155 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
12156 | if (strcmp (section, ".reg-aarch-tls") == 0) |
12157 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
12158 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
12159 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
12160 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
12161 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
12162 | if (strcmp (section, ".reg-aarch-sve") == 0) |
12163 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
12164 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
12165 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
f0bbe8ba LM |
12166 | if (strcmp (section, ".reg-aarch-mte") == 0) |
12167 | return elfcore_write_aarch_mte (abfd, buf, bufsiz, data, size); | |
27456742 AK |
12168 | if (strcmp (section, ".reg-arc-v2") == 0) |
12169 | return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size); | |
b63a5e38 AB |
12170 | if (strcmp (section, ".gdb-tdesc") == 0) |
12171 | return elfcore_write_gdb_tdesc (abfd, buf, bufsiz, data, size); | |
db6092f3 AB |
12172 | if (strcmp (section, ".reg-riscv-csr") == 0) |
12173 | return elfcore_write_riscv_csr (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12174 | return NULL; |
12175 | } | |
12176 | ||
4cb1265b MS |
12177 | char * |
12178 | elfcore_write_file_note (bfd *obfd, char *note_data, int *note_size, | |
12179 | const void *buf, int bufsiz) | |
12180 | { | |
12181 | return elfcore_write_note (obfd, note_data, note_size, | |
12182 | "CORE", NT_FILE, buf, bufsiz); | |
12183 | } | |
12184 | ||
0a1b45a2 | 12185 | static bool |
276da9b3 L |
12186 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
12187 | size_t align) | |
252b5132 | 12188 | { |
c044fabd | 12189 | char *p; |
252b5132 | 12190 | |
276da9b3 L |
12191 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
12192 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
12193 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
12194 | align is less than 4, we use 4 byte alignment. */ | |
12195 | if (align < 4) | |
12196 | align = 4; | |
ef135d43 | 12197 | if (align != 4 && align != 8) |
0a1b45a2 | 12198 | return false; |
276da9b3 | 12199 | |
252b5132 RH |
12200 | p = buf; |
12201 | while (p < buf + size) | |
12202 | { | |
c044fabd | 12203 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
12204 | Elf_Internal_Note in; |
12205 | ||
baea7ef1 | 12206 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
0a1b45a2 | 12207 | return false; |
baea7ef1 | 12208 | |
dc810e39 | 12209 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 12210 | |
dc810e39 | 12211 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 12212 | in.namedata = xnp->name; |
baea7ef1 | 12213 | if (in.namesz > buf - in.namedata + size) |
0a1b45a2 | 12214 | return false; |
252b5132 | 12215 | |
dc810e39 | 12216 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 12217 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 12218 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
12219 | if (in.descsz != 0 |
12220 | && (in.descdata >= buf + size | |
12221 | || in.descsz > buf - in.descdata + size)) | |
0a1b45a2 | 12222 | return false; |
252b5132 | 12223 | |
718175fa | 12224 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 12225 | { |
718175fa | 12226 | default: |
0a1b45a2 | 12227 | return true; |
718175fa JK |
12228 | |
12229 | case bfd_core: | |
f64e188b | 12230 | { |
8acbedd6 | 12231 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 12232 | struct |
718175fa | 12233 | { |
f64e188b | 12234 | const char * string; |
8acbedd6 | 12235 | size_t len; |
0a1b45a2 | 12236 | bool (*func) (bfd *, Elf_Internal_Note *); |
718175fa | 12237 | } |
f64e188b | 12238 | grokers[] = |
b15fa79e | 12239 | { |
8acbedd6 | 12240 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 12241 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
12242 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
12243 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
12244 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
864619bb KS |
12245 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
12246 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note) | |
f64e188b | 12247 | }; |
8acbedd6 | 12248 | #undef GROKER_ELEMENT |
f64e188b NC |
12249 | int i; |
12250 | ||
12251 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
12252 | { |
12253 | if (in.namesz >= grokers[i].len | |
12254 | && strncmp (in.namedata, grokers[i].string, | |
12255 | grokers[i].len) == 0) | |
12256 | { | |
12257 | if (! grokers[i].func (abfd, & in)) | |
0a1b45a2 | 12258 | return false; |
8acbedd6 KS |
12259 | break; |
12260 | } | |
12261 | } | |
f64e188b NC |
12262 | break; |
12263 | } | |
718175fa JK |
12264 | |
12265 | case bfd_object: | |
12266 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
12267 | { | |
12268 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
0a1b45a2 | 12269 | return false; |
718175fa | 12270 | } |
e21e5835 NC |
12271 | else if (in.namesz == sizeof "stapsdt" |
12272 | && strcmp (in.namedata, "stapsdt") == 0) | |
12273 | { | |
12274 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
0a1b45a2 | 12275 | return false; |
e21e5835 | 12276 | } |
718175fa | 12277 | break; |
08a40648 | 12278 | } |
252b5132 | 12279 | |
276da9b3 | 12280 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
12281 | } |
12282 | ||
0a1b45a2 | 12283 | return true; |
718175fa JK |
12284 | } |
12285 | ||
0a1b45a2 | 12286 | bool |
276da9b3 L |
12287 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
12288 | size_t align) | |
718175fa JK |
12289 | { |
12290 | char *buf; | |
12291 | ||
957e1fc1 | 12292 | if (size == 0 || (size + 1) == 0) |
0a1b45a2 | 12293 | return true; |
718175fa JK |
12294 | |
12295 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
0a1b45a2 | 12296 | return false; |
718175fa | 12297 | |
2bb3687b | 12298 | buf = (char *) _bfd_malloc_and_read (abfd, size + 1, size); |
718175fa | 12299 | if (buf == NULL) |
0a1b45a2 | 12300 | return false; |
718175fa | 12301 | |
f64e188b NC |
12302 | /* PR 17512: file: ec08f814 |
12303 | 0-termintate the buffer so that string searches will not overflow. */ | |
12304 | buf[size] = 0; | |
12305 | ||
2bb3687b | 12306 | if (!elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
12307 | { |
12308 | free (buf); | |
0a1b45a2 | 12309 | return false; |
718175fa JK |
12310 | } |
12311 | ||
252b5132 | 12312 | free (buf); |
0a1b45a2 | 12313 | return true; |
252b5132 | 12314 | } |
98d8431c JB |
12315 | \f |
12316 | /* Providing external access to the ELF program header table. */ | |
12317 | ||
12318 | /* Return an upper bound on the number of bytes required to store a | |
12319 | copy of ABFD's program header table entries. Return -1 if an error | |
12320 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12321 | |
98d8431c | 12322 | long |
217aa764 | 12323 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
12324 | { |
12325 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12326 | { | |
12327 | bfd_set_error (bfd_error_wrong_format); | |
12328 | return -1; | |
12329 | } | |
12330 | ||
936e320b | 12331 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
12332 | } |
12333 | ||
98d8431c JB |
12334 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
12335 | will be stored as an array of Elf_Internal_Phdr structures, as | |
12336 | defined in include/elf/internal.h. To find out how large the | |
12337 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
12338 | ||
12339 | Return the number of program header table entries read, or -1 if an | |
12340 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12341 | |
98d8431c | 12342 | int |
217aa764 | 12343 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
12344 | { |
12345 | int num_phdrs; | |
12346 | ||
12347 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12348 | { | |
12349 | bfd_set_error (bfd_error_wrong_format); | |
12350 | return -1; | |
12351 | } | |
12352 | ||
12353 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
12354 | if (num_phdrs != 0) |
12355 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
12356 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
12357 | |
12358 | return num_phdrs; | |
12359 | } | |
ae4221d7 | 12360 | |
db6751f2 | 12361 | enum elf_reloc_type_class |
7e612e98 AM |
12362 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
12363 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12364 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
12365 | { |
12366 | return reloc_class_normal; | |
12367 | } | |
f8df10f4 | 12368 | |
47d9a591 | 12369 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
12370 | relocation against a local symbol. */ |
12371 | ||
12372 | bfd_vma | |
217aa764 AM |
12373 | _bfd_elf_rela_local_sym (bfd *abfd, |
12374 | Elf_Internal_Sym *sym, | |
8517fae7 | 12375 | asection **psec, |
217aa764 | 12376 | Elf_Internal_Rela *rel) |
f8df10f4 | 12377 | { |
8517fae7 | 12378 | asection *sec = *psec; |
f8df10f4 JJ |
12379 | bfd_vma relocation; |
12380 | ||
6835821b AM |
12381 | relocation = (sec->output_section->vma |
12382 | + sec->output_offset | |
12383 | + sym->st_value); | |
f8df10f4 | 12384 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 12385 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 12386 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 12387 | { |
f8df10f4 | 12388 | rel->r_addend = |
8517fae7 | 12389 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 12390 | elf_section_data (sec)->sec_info, |
753731ee AM |
12391 | sym->st_value + rel->r_addend); |
12392 | if (sec != *psec) | |
12393 | { | |
12394 | /* If we have changed the section, and our original section is | |
12395 | marked with SEC_EXCLUDE, it means that the original | |
12396 | SEC_MERGE section has been completely subsumed in some | |
12397 | other SEC_MERGE section. In this case, we need to leave | |
12398 | some info around for --emit-relocs. */ | |
12399 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12400 | sec->kept_section = *psec; | |
12401 | sec = *psec; | |
12402 | } | |
8517fae7 AM |
12403 | rel->r_addend -= relocation; |
12404 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12405 | } |
12406 | return relocation; | |
12407 | } | |
c629eae0 JJ |
12408 | |
12409 | bfd_vma | |
217aa764 AM |
12410 | _bfd_elf_rel_local_sym (bfd *abfd, |
12411 | Elf_Internal_Sym *sym, | |
12412 | asection **psec, | |
12413 | bfd_vma addend) | |
47d9a591 | 12414 | { |
c629eae0 JJ |
12415 | asection *sec = *psec; |
12416 | ||
6835821b | 12417 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12418 | return sym->st_value + addend; |
12419 | ||
12420 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12421 | elf_section_data (sec)->sec_info, |
753731ee | 12422 | sym->st_value + addend); |
c629eae0 JJ |
12423 | } |
12424 | ||
37b01f6a DG |
12425 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12426 | the new offset within the section, based upon changes made to the | |
12427 | section. Returns -1 if the offset is now invalid. | |
12428 | The offset (in abnd out) is in target sized bytes, however big a | |
12429 | byte may be. */ | |
12430 | ||
c629eae0 | 12431 | bfd_vma |
217aa764 | 12432 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12433 | struct bfd_link_info *info, |
217aa764 AM |
12434 | asection *sec, |
12435 | bfd_vma offset) | |
c629eae0 | 12436 | { |
68bfbfcc | 12437 | switch (sec->sec_info_type) |
65765700 | 12438 | { |
dbaa2011 | 12439 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12440 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12441 | offset); | |
dbaa2011 | 12442 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12443 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12444 | |
65765700 | 12445 | default: |
310fd250 L |
12446 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12447 | { | |
37b01f6a | 12448 | /* Reverse the offset. */ |
310fd250 L |
12449 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12450 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12451 | |
12452 | /* address_size and sec->size are in octets. Convert | |
12453 | to bytes before subtracting the original offset. */ | |
61826503 | 12454 | offset = ((sec->size - address_size) |
bb294208 | 12455 | / bfd_octets_per_byte (abfd, sec) - offset); |
310fd250 | 12456 | } |
65765700 JJ |
12457 | return offset; |
12458 | } | |
c629eae0 | 12459 | } |
3333a7c3 RM |
12460 | \f |
12461 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12462 | reconstruct an ELF file by reading the segments out of remote memory | |
12463 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12464 | points to. If not null, *LOADBASEP is filled in with the difference | |
12465 | between the VMAs from which the segments were read, and the VMAs the | |
12466 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12467 | ||
12468 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12469 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12470 | should return zero on success or an `errno' code on failure. TEMPL must | |
12471 | be a BFD for an ELF target with the word size and byte order found in | |
12472 | the remote memory. */ | |
12473 | ||
12474 | bfd * | |
217aa764 AM |
12475 | bfd_elf_bfd_from_remote_memory |
12476 | (bfd *templ, | |
12477 | bfd_vma ehdr_vma, | |
f0a5d95a | 12478 | bfd_size_type size, |
217aa764 | 12479 | bfd_vma *loadbasep, |
fe78531d | 12480 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12481 | { |
12482 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12483 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12484 | } |
4c45e5c9 JJ |
12485 | \f |
12486 | long | |
c9727e01 AM |
12487 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12488 | long symcount ATTRIBUTE_UNUSED, | |
12489 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12490 | long dynsymcount, |
c9727e01 AM |
12491 | asymbol **dynsyms, |
12492 | asymbol **ret) | |
4c45e5c9 JJ |
12493 | { |
12494 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12495 | asection *relplt; | |
12496 | asymbol *s; | |
12497 | const char *relplt_name; | |
0a1b45a2 | 12498 | bool (*slurp_relocs) (bfd *, asection *, asymbol **, bool); |
4c45e5c9 JJ |
12499 | arelent *p; |
12500 | long count, i, n; | |
12501 | size_t size; | |
12502 | Elf_Internal_Shdr *hdr; | |
12503 | char *names; | |
12504 | asection *plt; | |
12505 | ||
8615f3f2 AM |
12506 | *ret = NULL; |
12507 | ||
90e3cdf2 JJ |
12508 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12509 | return 0; | |
12510 | ||
8615f3f2 AM |
12511 | if (dynsymcount <= 0) |
12512 | return 0; | |
12513 | ||
4c45e5c9 JJ |
12514 | if (!bed->plt_sym_val) |
12515 | return 0; | |
12516 | ||
12517 | relplt_name = bed->relplt_name; | |
12518 | if (relplt_name == NULL) | |
d35fd659 | 12519 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12520 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12521 | if (relplt == NULL) | |
12522 | return 0; | |
12523 | ||
12524 | hdr = &elf_section_data (relplt)->this_hdr; | |
12525 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12526 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12527 | return 0; | |
12528 | ||
12529 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12530 | if (plt == NULL) | |
12531 | return 0; | |
12532 | ||
12533 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
0a1b45a2 | 12534 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, true)) |
4c45e5c9 JJ |
12535 | return -1; |
12536 | ||
eea6121a | 12537 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12538 | size = count * sizeof (asymbol); |
12539 | p = relplt->relocation; | |
cb53bf42 | 12540 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12541 | { |
12542 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12543 | if (p->addend != 0) | |
12544 | { | |
12545 | #ifdef BFD64 | |
12546 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12547 | #else | |
12548 | size += sizeof ("+0x") - 1 + 8; | |
12549 | #endif | |
12550 | } | |
12551 | } | |
4c45e5c9 | 12552 | |
a50b1753 | 12553 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12554 | if (s == NULL) |
12555 | return -1; | |
12556 | ||
12557 | names = (char *) (s + count); | |
12558 | p = relplt->relocation; | |
12559 | n = 0; | |
cb53bf42 | 12560 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12561 | { |
12562 | size_t len; | |
12563 | bfd_vma addr; | |
12564 | ||
12565 | addr = bed->plt_sym_val (i, plt, p); | |
12566 | if (addr == (bfd_vma) -1) | |
12567 | continue; | |
12568 | ||
12569 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12570 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12571 | we are defining a symbol, ensure one of them is set. */ | |
12572 | if ((s->flags & BSF_LOCAL) == 0) | |
12573 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12574 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12575 | s->section = plt; |
12576 | s->value = addr - plt->vma; | |
12577 | s->name = names; | |
8f39ba8e | 12578 | s->udata.p = NULL; |
4c45e5c9 JJ |
12579 | len = strlen ((*p->sym_ptr_ptr)->name); |
12580 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12581 | names += len; | |
041de40d AM |
12582 | if (p->addend != 0) |
12583 | { | |
1d770845 | 12584 | char buf[30], *a; |
d324f6d6 | 12585 | |
041de40d AM |
12586 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12587 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12588 | bfd_sprintf_vma (abfd, buf, p->addend); |
12589 | for (a = buf; *a == '0'; ++a) | |
12590 | ; | |
12591 | len = strlen (a); | |
12592 | memcpy (names, a, len); | |
12593 | names += len; | |
041de40d | 12594 | } |
4c45e5c9 JJ |
12595 | memcpy (names, "@plt", sizeof ("@plt")); |
12596 | names += sizeof ("@plt"); | |
8f39ba8e | 12597 | ++s, ++n; |
4c45e5c9 JJ |
12598 | } |
12599 | ||
12600 | return n; | |
12601 | } | |
3d7f7666 | 12602 | |
821e6ff6 AM |
12603 | /* It is only used by x86-64 so far. |
12604 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12605 | but current usage would allow all of _bfd_std_section to be zero. */ |
12606 | static const asymbol lcomm_sym | |
12607 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12608 | asection _bfd_elf_large_com_section |
7eacd66b | 12609 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12610 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12611 | |
0a1b45a2 | 12612 | bool |
cc364be6 | 12613 | _bfd_elf_final_write_processing (bfd *abfd) |
06f44071 AM |
12614 | { |
12615 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12616 | |
12617 | i_ehdrp = elf_elfheader (abfd); | |
12618 | ||
06f44071 AM |
12619 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12620 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12621 | |
df3a023b | 12622 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
99fabbc9 JL |
12623 | SHF_GNU_MBIND or SHF_GNU_RETAIN sections or symbols of STT_GNU_IFUNC type |
12624 | or STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12625 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12626 | { | |
12627 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12628 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12629 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12630 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12631 | { | |
12632 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
99fabbc9 JL |
12633 | _bfd_error_handler (_("GNU_MBIND section is supported only by GNU " |
12634 | "and FreeBSD targets")); | |
cc364be6 | 12635 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) |
99fabbc9 JL |
12636 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is supported " |
12637 | "only by GNU and FreeBSD targets")); | |
cc364be6 | 12638 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) |
99fabbc9 JL |
12639 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is supported " |
12640 | "only by GNU and FreeBSD targets")); | |
12641 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_retain) | |
12642 | _bfd_error_handler (_("GNU_RETAIN section is supported " | |
12643 | "only by GNU and FreeBSD targets")); | |
9aea1e31 | 12644 | bfd_set_error (bfd_error_sorry); |
0a1b45a2 | 12645 | return false; |
cc364be6 AM |
12646 | } |
12647 | } | |
0a1b45a2 | 12648 | return true; |
d1036acb | 12649 | } |
fcb93ecf PB |
12650 | |
12651 | ||
12652 | /* Return TRUE for ELF symbol types that represent functions. | |
12653 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12654 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf | 12655 | |
0a1b45a2 | 12656 | bool |
fcb93ecf PB |
12657 | _bfd_elf_is_function_type (unsigned int type) |
12658 | { | |
d8045f23 NC |
12659 | return (type == STT_FUNC |
12660 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12661 | } |
9f296da3 | 12662 | |
aef36ac1 AM |
12663 | /* If the ELF symbol SYM might be a function in SEC, return the |
12664 | function size and set *CODE_OFF to the function's entry point, | |
12665 | otherwise return zero. */ | |
9f296da3 | 12666 | |
aef36ac1 AM |
12667 | bfd_size_type |
12668 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12669 | bfd_vma *code_off) | |
9f296da3 | 12670 | { |
aef36ac1 | 12671 | bfd_size_type size; |
24aebc79 | 12672 | elf_symbol_type * elf_sym = (elf_symbol_type *) sym; |
aef36ac1 | 12673 | |
ff9e0f5b | 12674 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12675 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12676 | || sym->section != sec) | |
12677 | return 0; | |
ff9e0f5b | 12678 | |
24aebc79 NC |
12679 | size = (sym->flags & BSF_SYNTHETIC) ? 0 : elf_sym->internal_elf_sym.st_size; |
12680 | ||
12681 | /* In theory we should check that the symbol's type satisfies | |
12682 | _bfd_elf_is_function_type(), but there are some function-like | |
12683 | symbols which would fail this test. (eg _start). Instead | |
12684 | we check for hidden, local, notype symbols with zero size. | |
12685 | This type of symbol is generated by the annobin plugin for gcc | |
12686 | and clang, and should not be considered to be a function symbol. */ | |
12687 | if (size == 0 | |
12688 | && ((sym->flags & (BSF_SYNTHETIC | BSF_LOCAL)) == BSF_LOCAL) | |
12689 | && ELF_ST_TYPE (elf_sym->internal_elf_sym.st_info) == STT_NOTYPE | |
12690 | && ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other) == STV_HIDDEN) | |
12691 | return 0; | |
12692 | ||
ff9e0f5b | 12693 | *code_off = sym->value; |
24aebc79 NC |
12694 | /* Do not return 0 for the function's size. */ |
12695 | return size ? size : 1; | |
9f296da3 | 12696 | } |
a8e14f4c NC |
12697 | |
12698 | /* Set to non-zero to enable some debug messages. */ | |
12699 | #define DEBUG_SECONDARY_RELOCS 0 | |
12700 | ||
12701 | /* An internal-to-the-bfd-library only section type | |
12702 | used to indicate a cached secondary reloc section. */ | |
12703 | #define SHT_SECONDARY_RELOC (SHT_LOOS + SHT_RELA) | |
12704 | ||
12705 | /* Create a BFD section to hold a secondary reloc section. */ | |
12706 | ||
0a1b45a2 | 12707 | bool |
a8e14f4c NC |
12708 | _bfd_elf_init_secondary_reloc_section (bfd * abfd, |
12709 | Elf_Internal_Shdr *hdr, | |
12710 | const char * name, | |
12711 | unsigned int shindex) | |
12712 | { | |
12713 | /* We only support RELA secondary relocs. */ | |
12714 | if (hdr->sh_type != SHT_RELA) | |
0a1b45a2 | 12715 | return false; |
a8e14f4c NC |
12716 | |
12717 | #if DEBUG_SECONDARY_RELOCS | |
12718 | fprintf (stderr, "secondary reloc section %s encountered\n", name); | |
12719 | #endif | |
12720 | hdr->sh_type = SHT_SECONDARY_RELOC; | |
12721 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
12722 | } | |
12723 | ||
12724 | /* Read in any secondary relocs associated with SEC. */ | |
12725 | ||
0a1b45a2 | 12726 | bool |
f60742b2 NC |
12727 | _bfd_elf_slurp_secondary_reloc_section (bfd * abfd, |
12728 | asection * sec, | |
12729 | asymbol ** symbols, | |
0a1b45a2 | 12730 | bool dynamic) |
a8e14f4c NC |
12731 | { |
12732 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
12733 | asection * relsec; | |
0a1b45a2 | 12734 | bool result = true; |
a8e14f4c NC |
12735 | bfd_vma (*r_sym) (bfd_vma); |
12736 | ||
12737 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
12738 | if (bfd_arch_bits_per_address (abfd) != 32) | |
12739 | r_sym = elf64_r_sym; | |
12740 | else | |
12741 | #endif | |
12742 | r_sym = elf32_r_sym; | |
12743 | ||
956ea65c MM |
12744 | if (!elf_section_data (sec)->has_secondary_relocs) |
12745 | return true; | |
12746 | ||
a8e14f4c NC |
12747 | /* Discover if there are any secondary reloc sections |
12748 | associated with SEC. */ | |
12749 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
12750 | { | |
12751 | Elf_Internal_Shdr * hdr = & elf_section_data (relsec)->this_hdr; | |
12752 | ||
12753 | if (hdr->sh_type == SHT_SECONDARY_RELOC | |
8642dafa AM |
12754 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx |
12755 | && (hdr->sh_entsize == ebd->s->sizeof_rel | |
12756 | || hdr->sh_entsize == ebd->s->sizeof_rela)) | |
a8e14f4c NC |
12757 | { |
12758 | bfd_byte * native_relocs; | |
12759 | bfd_byte * native_reloc; | |
12760 | arelent * internal_relocs; | |
12761 | arelent * internal_reloc; | |
12762 | unsigned int i; | |
12763 | unsigned int entsize; | |
12764 | unsigned int symcount; | |
12765 | unsigned int reloc_count; | |
12766 | size_t amt; | |
12767 | ||
12768 | if (ebd->elf_info_to_howto == NULL) | |
0a1b45a2 | 12769 | return false; |
a8e14f4c NC |
12770 | |
12771 | #if DEBUG_SECONDARY_RELOCS | |
12772 | fprintf (stderr, "read secondary relocs for %s from %s\n", | |
12773 | sec->name, relsec->name); | |
12774 | #endif | |
12775 | entsize = hdr->sh_entsize; | |
12776 | ||
12777 | native_relocs = bfd_malloc (hdr->sh_size); | |
12778 | if (native_relocs == NULL) | |
12779 | { | |
0a1b45a2 | 12780 | result = false; |
a8e14f4c NC |
12781 | continue; |
12782 | } | |
12783 | ||
12784 | reloc_count = NUM_SHDR_ENTRIES (hdr); | |
12785 | if (_bfd_mul_overflow (reloc_count, sizeof (arelent), & amt)) | |
12786 | { | |
ecbbbdba | 12787 | free (native_relocs); |
a8e14f4c | 12788 | bfd_set_error (bfd_error_file_too_big); |
0a1b45a2 | 12789 | result = false; |
a8e14f4c NC |
12790 | continue; |
12791 | } | |
12792 | ||
12793 | internal_relocs = (arelent *) bfd_alloc (abfd, amt); | |
12794 | if (internal_relocs == NULL) | |
12795 | { | |
12796 | free (native_relocs); | |
0a1b45a2 | 12797 | result = false; |
a8e14f4c NC |
12798 | continue; |
12799 | } | |
12800 | ||
12801 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
12802 | || (bfd_bread (native_relocs, hdr->sh_size, abfd) | |
12803 | != hdr->sh_size)) | |
12804 | { | |
12805 | free (native_relocs); | |
ecbbbdba NC |
12806 | /* The internal_relocs will be freed when |
12807 | the memory for the bfd is released. */ | |
0a1b45a2 | 12808 | result = false; |
a8e14f4c NC |
12809 | continue; |
12810 | } | |
12811 | ||
f60742b2 NC |
12812 | if (dynamic) |
12813 | symcount = bfd_get_dynamic_symcount (abfd); | |
12814 | else | |
12815 | symcount = bfd_get_symcount (abfd); | |
a8e14f4c NC |
12816 | |
12817 | for (i = 0, internal_reloc = internal_relocs, | |
12818 | native_reloc = native_relocs; | |
12819 | i < reloc_count; | |
12820 | i++, internal_reloc++, native_reloc += entsize) | |
12821 | { | |
0a1b45a2 | 12822 | bool res; |
a8e14f4c NC |
12823 | Elf_Internal_Rela rela; |
12824 | ||
8ee54925 NC |
12825 | if (entsize == ebd->s->sizeof_rel) |
12826 | ebd->s->swap_reloc_in (abfd, native_reloc, & rela); | |
12827 | else /* entsize == ebd->s->sizeof_rela */ | |
12828 | ebd->s->swap_reloca_in (abfd, native_reloc, & rela); | |
a8e14f4c NC |
12829 | |
12830 | /* The address of an ELF reloc is section relative for an object | |
12831 | file, and absolute for an executable file or shared library. | |
12832 | The address of a normal BFD reloc is always section relative, | |
12833 | and the address of a dynamic reloc is absolute.. */ | |
12834 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
12835 | internal_reloc->address = rela.r_offset; | |
12836 | else | |
12837 | internal_reloc->address = rela.r_offset - sec->vma; | |
12838 | ||
12839 | if (r_sym (rela.r_info) == STN_UNDEF) | |
12840 | { | |
12841 | /* FIXME: This and the error case below mean that we | |
12842 | have a symbol on relocs that is not elf_symbol_type. */ | |
12843 | internal_reloc->sym_ptr_ptr = | |
12844 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
12845 | } | |
12846 | else if (r_sym (rela.r_info) > symcount) | |
12847 | { | |
12848 | _bfd_error_handler | |
12849 | /* xgettext:c-format */ | |
12850 | (_("%pB(%pA): relocation %d has invalid symbol index %ld"), | |
12851 | abfd, sec, i, (long) r_sym (rela.r_info)); | |
12852 | bfd_set_error (bfd_error_bad_value); | |
12853 | internal_reloc->sym_ptr_ptr = | |
12854 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
0a1b45a2 | 12855 | result = false; |
a8e14f4c NC |
12856 | } |
12857 | else | |
12858 | { | |
12859 | asymbol **ps; | |
12860 | ||
12861 | ps = symbols + r_sym (rela.r_info) - 1; | |
a8e14f4c NC |
12862 | internal_reloc->sym_ptr_ptr = ps; |
12863 | /* Make sure that this symbol is not removed by strip. */ | |
12864 | (*ps)->flags |= BSF_KEEP; | |
12865 | } | |
12866 | ||
12867 | internal_reloc->addend = rela.r_addend; | |
12868 | ||
12869 | res = ebd->elf_info_to_howto (abfd, internal_reloc, & rela); | |
12870 | if (! res || internal_reloc->howto == NULL) | |
12871 | { | |
12872 | #if DEBUG_SECONDARY_RELOCS | |
12873 | fprintf (stderr, "there is no howto associated with reloc %lx\n", | |
12874 | rela.r_info); | |
12875 | #endif | |
0a1b45a2 | 12876 | result = false; |
a8e14f4c NC |
12877 | } |
12878 | } | |
12879 | ||
12880 | free (native_relocs); | |
12881 | /* Store the internal relocs. */ | |
12882 | elf_section_data (relsec)->sec_info = internal_relocs; | |
12883 | } | |
12884 | } | |
12885 | ||
12886 | return result; | |
12887 | } | |
12888 | ||
12889 | /* Set the ELF section header fields of an output secondary reloc section. */ | |
12890 | ||
0a1b45a2 | 12891 | bool |
a8e14f4c NC |
12892 | _bfd_elf_copy_special_section_fields (const bfd * ibfd ATTRIBUTE_UNUSED, |
12893 | bfd * obfd ATTRIBUTE_UNUSED, | |
12894 | const Elf_Internal_Shdr * isection, | |
12895 | Elf_Internal_Shdr * osection) | |
12896 | { | |
12897 | asection * isec; | |
12898 | asection * osec; | |
44466e45 | 12899 | struct bfd_elf_section_data * esd; |
a8e14f4c NC |
12900 | |
12901 | if (isection == NULL) | |
0a1b45a2 | 12902 | return false; |
a8e14f4c NC |
12903 | |
12904 | if (isection->sh_type != SHT_SECONDARY_RELOC) | |
0a1b45a2 | 12905 | return true; |
a8e14f4c NC |
12906 | |
12907 | isec = isection->bfd_section; | |
12908 | if (isec == NULL) | |
0a1b45a2 | 12909 | return false; |
a8e14f4c NC |
12910 | |
12911 | osec = osection->bfd_section; | |
12912 | if (osec == NULL) | |
0a1b45a2 | 12913 | return false; |
a8e14f4c | 12914 | |
44466e45 NC |
12915 | esd = elf_section_data (osec); |
12916 | BFD_ASSERT (esd->sec_info == NULL); | |
12917 | esd->sec_info = elf_section_data (isec)->sec_info; | |
a8e14f4c NC |
12918 | osection->sh_type = SHT_RELA; |
12919 | osection->sh_link = elf_onesymtab (obfd); | |
12920 | if (osection->sh_link == 0) | |
12921 | { | |
12922 | /* There is no symbol table - we are hosed... */ | |
12923 | _bfd_error_handler | |
12924 | /* xgettext:c-format */ | |
12925 | (_("%pB(%pA): link section cannot be set because the output file does not have a symbol table"), | |
12926 | obfd, osec); | |
12927 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 12928 | return false; |
a8e14f4c NC |
12929 | } |
12930 | ||
12931 | /* Find the output section that corresponds to the isection's sh_info link. */ | |
327ef784 NC |
12932 | if (isection->sh_info == 0 |
12933 | || isection->sh_info >= elf_numsections (ibfd)) | |
12934 | { | |
12935 | _bfd_error_handler | |
12936 | /* xgettext:c-format */ | |
12937 | (_("%pB(%pA): info section index is invalid"), | |
12938 | obfd, osec); | |
12939 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 12940 | return false; |
327ef784 NC |
12941 | } |
12942 | ||
a8e14f4c NC |
12943 | isection = elf_elfsections (ibfd)[isection->sh_info]; |
12944 | ||
327ef784 NC |
12945 | if (isection == NULL |
12946 | || isection->bfd_section == NULL | |
12947 | || isection->bfd_section->output_section == NULL) | |
12948 | { | |
12949 | _bfd_error_handler | |
12950 | /* xgettext:c-format */ | |
12951 | (_("%pB(%pA): info section index cannot be set because the section is not in the output"), | |
12952 | obfd, osec); | |
12953 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 12954 | return false; |
327ef784 NC |
12955 | } |
12956 | ||
44466e45 NC |
12957 | esd = elf_section_data (isection->bfd_section->output_section); |
12958 | BFD_ASSERT (esd != NULL); | |
12959 | osection->sh_info = esd->this_idx; | |
0a1b45a2 | 12960 | esd->has_secondary_relocs = true; |
a8e14f4c NC |
12961 | #if DEBUG_SECONDARY_RELOCS |
12962 | fprintf (stderr, "update header of %s, sh_link = %u, sh_info = %u\n", | |
12963 | osec->name, osection->sh_link, osection->sh_info); | |
44466e45 NC |
12964 | fprintf (stderr, "mark section %s as having secondary relocs\n", |
12965 | bfd_section_name (isection->bfd_section->output_section)); | |
a8e14f4c NC |
12966 | #endif |
12967 | ||
0a1b45a2 | 12968 | return true; |
a8e14f4c NC |
12969 | } |
12970 | ||
44466e45 NC |
12971 | /* Write out a secondary reloc section. |
12972 | ||
12973 | FIXME: Currently this function can result in a serious performance penalty | |
12974 | for files with secondary relocs and lots of sections. The proper way to | |
12975 | fix this is for _bfd_elf_copy_special_section_fields() to chain secondary | |
12976 | relocs together and then to have this function just walk that chain. */ | |
a8e14f4c | 12977 | |
0a1b45a2 | 12978 | bool |
a8e14f4c NC |
12979 | _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec) |
12980 | { | |
12981 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
12982 | bfd_vma addr_offset; | |
12983 | asection * relsec; | |
12984 | bfd_vma (*r_info) (bfd_vma, bfd_vma); | |
0a1b45a2 | 12985 | bool result = true; |
ac4bf06c NC |
12986 | |
12987 | if (sec == NULL) | |
0a1b45a2 | 12988 | return false; |
a8e14f4c NC |
12989 | |
12990 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
12991 | if (bfd_arch_bits_per_address (abfd) != 32) | |
12992 | r_info = elf64_r_info; | |
12993 | else | |
12994 | #endif | |
12995 | r_info = elf32_r_info; | |
12996 | ||
a8e14f4c NC |
12997 | /* The address of an ELF reloc is section relative for an object |
12998 | file, and absolute for an executable file or shared library. | |
12999 | The address of a BFD reloc is always section relative. */ | |
13000 | addr_offset = 0; | |
13001 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
13002 | addr_offset = sec->vma; | |
13003 | ||
13004 | /* Discover if there are any secondary reloc sections | |
13005 | associated with SEC. */ | |
13006 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
13007 | { | |
13008 | const struct bfd_elf_section_data * const esd = elf_section_data (relsec); | |
13009 | Elf_Internal_Shdr * const hdr = (Elf_Internal_Shdr *) & esd->this_hdr; | |
13010 | ||
13011 | if (hdr->sh_type == SHT_RELA | |
13012 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx) | |
13013 | { | |
13014 | asymbol * last_sym; | |
13015 | int last_sym_idx; | |
13016 | unsigned int reloc_count; | |
13017 | unsigned int idx; | |
8ee54925 | 13018 | unsigned int entsize; |
a8e14f4c NC |
13019 | arelent * src_irel; |
13020 | bfd_byte * dst_rela; | |
13021 | ||
ac4bf06c NC |
13022 | if (hdr->contents != NULL) |
13023 | { | |
13024 | _bfd_error_handler | |
13025 | /* xgettext:c-format */ | |
13026 | (_("%pB(%pA): error: secondary reloc section processed twice"), | |
13027 | abfd, relsec); | |
13028 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13029 | result = false; |
ac4bf06c NC |
13030 | continue; |
13031 | } | |
a8e14f4c | 13032 | |
8ee54925 NC |
13033 | entsize = hdr->sh_entsize; |
13034 | if (entsize == 0) | |
ac267c75 NC |
13035 | { |
13036 | _bfd_error_handler | |
13037 | /* xgettext:c-format */ | |
13038 | (_("%pB(%pA): error: secondary reloc section has zero sized entries"), | |
13039 | abfd, relsec); | |
13040 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13041 | result = false; |
ac267c75 NC |
13042 | continue; |
13043 | } | |
8ee54925 NC |
13044 | else if (entsize != ebd->s->sizeof_rel |
13045 | && entsize != ebd->s->sizeof_rela) | |
13046 | { | |
13047 | _bfd_error_handler | |
13048 | /* xgettext:c-format */ | |
13049 | (_("%pB(%pA): error: secondary reloc section has non-standard sized entries"), | |
13050 | abfd, relsec); | |
13051 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13052 | result = false; |
8ee54925 NC |
13053 | continue; |
13054 | } | |
ac267c75 | 13055 | |
8ee54925 | 13056 | reloc_count = hdr->sh_size / entsize; |
ac4bf06c NC |
13057 | if (reloc_count <= 0) |
13058 | { | |
13059 | _bfd_error_handler | |
13060 | /* xgettext:c-format */ | |
13061 | (_("%pB(%pA): error: secondary reloc section is empty!"), | |
13062 | abfd, relsec); | |
13063 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13064 | result = false; |
ac4bf06c NC |
13065 | continue; |
13066 | } | |
a8e14f4c NC |
13067 | |
13068 | hdr->contents = bfd_alloc (abfd, hdr->sh_size); | |
13069 | if (hdr->contents == NULL) | |
13070 | continue; | |
13071 | ||
13072 | #if DEBUG_SECONDARY_RELOCS | |
13073 | fprintf (stderr, "write %u secondary relocs for %s from %s\n", | |
13074 | reloc_count, sec->name, relsec->name); | |
13075 | #endif | |
13076 | last_sym = NULL; | |
13077 | last_sym_idx = 0; | |
13078 | dst_rela = hdr->contents; | |
13079 | src_irel = (arelent *) esd->sec_info; | |
ac4bf06c NC |
13080 | if (src_irel == NULL) |
13081 | { | |
13082 | _bfd_error_handler | |
13083 | /* xgettext:c-format */ | |
13084 | (_("%pB(%pA): error: internal relocs missing for secondary reloc section"), | |
13085 | abfd, relsec); | |
13086 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13087 | result = false; |
ac4bf06c NC |
13088 | continue; |
13089 | } | |
a8e14f4c | 13090 | |
8ee54925 | 13091 | for (idx = 0; idx < reloc_count; idx++, dst_rela += entsize) |
a8e14f4c NC |
13092 | { |
13093 | Elf_Internal_Rela src_rela; | |
13094 | arelent *ptr; | |
13095 | asymbol *sym; | |
13096 | int n; | |
13097 | ||
13098 | ptr = src_irel + idx; | |
ac4bf06c NC |
13099 | if (ptr == NULL) |
13100 | { | |
13101 | _bfd_error_handler | |
13102 | /* xgettext:c-format */ | |
13103 | (_("%pB(%pA): error: reloc table entry %u is empty"), | |
13104 | abfd, relsec, idx); | |
13105 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13106 | result = false; |
ac4bf06c NC |
13107 | break; |
13108 | } | |
a8e14f4c | 13109 | |
ac4bf06c NC |
13110 | if (ptr->sym_ptr_ptr == NULL) |
13111 | { | |
13112 | /* FIXME: Is this an error ? */ | |
13113 | n = 0; | |
13114 | } | |
a8e14f4c NC |
13115 | else |
13116 | { | |
ac4bf06c NC |
13117 | sym = *ptr->sym_ptr_ptr; |
13118 | ||
13119 | if (sym == last_sym) | |
13120 | n = last_sym_idx; | |
13121 | else | |
a8e14f4c | 13122 | { |
ac4bf06c NC |
13123 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, & sym); |
13124 | if (n < 0) | |
13125 | { | |
13126 | _bfd_error_handler | |
13127 | /* xgettext:c-format */ | |
13128 | (_("%pB(%pA): error: secondary reloc %u references a missing symbol"), | |
13129 | abfd, relsec, idx); | |
13130 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13131 | result = false; |
ac4bf06c NC |
13132 | n = 0; |
13133 | } | |
13134 | ||
13135 | last_sym = sym; | |
13136 | last_sym_idx = n; | |
a8e14f4c | 13137 | } |
a8e14f4c | 13138 | |
ac4bf06c NC |
13139 | if (sym->the_bfd != NULL |
13140 | && sym->the_bfd->xvec != abfd->xvec | |
13141 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
13142 | { | |
13143 | _bfd_error_handler | |
13144 | /* xgettext:c-format */ | |
13145 | (_("%pB(%pA): error: secondary reloc %u references a deleted symbol"), | |
13146 | abfd, relsec, idx); | |
13147 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13148 | result = false; |
ac4bf06c NC |
13149 | n = 0; |
13150 | } | |
a8e14f4c NC |
13151 | } |
13152 | ||
ac4bf06c | 13153 | src_rela.r_offset = ptr->address + addr_offset; |
a8e14f4c NC |
13154 | if (ptr->howto == NULL) |
13155 | { | |
ac4bf06c NC |
13156 | _bfd_error_handler |
13157 | /* xgettext:c-format */ | |
13158 | (_("%pB(%pA): error: secondary reloc %u is of an unknown type"), | |
13159 | abfd, relsec, idx); | |
13160 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13161 | result = false; |
ac4bf06c | 13162 | src_rela.r_info = r_info (0, 0); |
a8e14f4c | 13163 | } |
ac4bf06c NC |
13164 | else |
13165 | src_rela.r_info = r_info (n, ptr->howto->type); | |
a8e14f4c | 13166 | src_rela.r_addend = ptr->addend; |
8ee54925 NC |
13167 | |
13168 | if (entsize == ebd->s->sizeof_rel) | |
13169 | ebd->s->swap_reloc_out (abfd, &src_rela, dst_rela); | |
13170 | else /* entsize == ebd->s->sizeof_rela */ | |
13171 | ebd->s->swap_reloca_out (abfd, &src_rela, dst_rela); | |
a8e14f4c NC |
13172 | } |
13173 | } | |
13174 | } | |
13175 | ||
ac4bf06c | 13176 | return result; |
a8e14f4c | 13177 | } |