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; | |
1b244ed9 FS |
1776 | case DT_RELR: name = "RELR"; break; |
1777 | case DT_RELRSZ: name = "RELRSZ"; break; | |
1778 | case DT_RELRENT: name = "RELRENT"; break; | |
252b5132 RH |
1779 | case DT_PLTREL: name = "PLTREL"; break; |
1780 | case DT_DEBUG: name = "DEBUG"; break; | |
1781 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1782 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1783 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1784 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1785 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1786 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1787 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
0a1b45a2 | 1788 | case DT_RUNPATH: name = "RUNPATH"; stringp = true; break; |
94558834 L |
1789 | case DT_FLAGS: name = "FLAGS"; break; |
1790 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1791 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1792 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1793 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1794 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1795 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1796 | case DT_FEATURE: name = "FEATURE"; break; | |
1797 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1798 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1799 | case DT_SYMINENT: name = "SYMINENT"; break; | |
0a1b45a2 AM |
1800 | case DT_CONFIG: name = "CONFIG"; stringp = true; break; |
1801 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = true; break; | |
1802 | case DT_AUDIT: name = "AUDIT"; stringp = true; break; | |
94558834 L |
1803 | case DT_PLTPAD: name = "PLTPAD"; break; |
1804 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1805 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1806 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1807 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1808 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1809 | case DT_VERSYM: name = "VERSYM"; break; |
1810 | case DT_VERDEF: name = "VERDEF"; break; | |
1811 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1812 | case DT_VERNEED: name = "VERNEED"; break; | |
1813 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
0a1b45a2 | 1814 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = true; break; |
94558834 | 1815 | case DT_USED: name = "USED"; break; |
0a1b45a2 | 1816 | case DT_FILTER: name = "FILTER"; stringp = true; break; |
fdc90cb4 | 1817 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1818 | } |
1819 | ||
ad9563d6 | 1820 | fprintf (f, " %-20s ", name); |
252b5132 | 1821 | if (! stringp) |
a1f3c56e AN |
1822 | { |
1823 | fprintf (f, "0x"); | |
1824 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1825 | } | |
252b5132 RH |
1826 | else |
1827 | { | |
1828 | const char *string; | |
dc810e39 | 1829 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1830 | |
dc810e39 | 1831 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1832 | if (string == NULL) |
1833 | goto error_return; | |
1834 | fprintf (f, "%s", string); | |
1835 | } | |
1836 | fprintf (f, "\n"); | |
1837 | } | |
1838 | ||
1839 | free (dynbuf); | |
1840 | dynbuf = NULL; | |
1841 | } | |
1842 | ||
1843 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1844 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1845 | { | |
0a1b45a2 AM |
1846 | if (! _bfd_elf_slurp_version_tables (abfd, false)) |
1847 | return false; | |
252b5132 RH |
1848 | } |
1849 | ||
1850 | if (elf_dynverdef (abfd) != 0) | |
1851 | { | |
1852 | Elf_Internal_Verdef *t; | |
1853 | ||
1854 | fprintf (f, _("\nVersion definitions:\n")); | |
1855 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1856 | { | |
1857 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1858 | t->vd_flags, t->vd_hash, |
1859 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1860 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1861 | { |
1862 | Elf_Internal_Verdaux *a; | |
1863 | ||
1864 | fprintf (f, "\t"); | |
1865 | for (a = t->vd_auxptr->vda_nextptr; | |
1866 | a != NULL; | |
1867 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1868 | fprintf (f, "%s ", |
1869 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1870 | fprintf (f, "\n"); |
1871 | } | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | if (elf_dynverref (abfd) != 0) | |
1876 | { | |
1877 | Elf_Internal_Verneed *t; | |
1878 | ||
1879 | fprintf (f, _("\nVersion References:\n")); | |
1880 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1881 | { | |
1882 | Elf_Internal_Vernaux *a; | |
1883 | ||
d0fb9a8d JJ |
1884 | fprintf (f, _(" required from %s:\n"), |
1885 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1886 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1887 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1888 | a->vna_flags, a->vna_other, |
1889 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1890 | } |
1891 | } | |
1892 | ||
0a1b45a2 | 1893 | return true; |
252b5132 RH |
1894 | |
1895 | error_return: | |
c9594989 | 1896 | free (dynbuf); |
0a1b45a2 | 1897 | return false; |
252b5132 RH |
1898 | } |
1899 | ||
7e6e972f L |
1900 | /* Get version name. If BASE_P is TRUE, return "Base" for VER_FLG_BASE |
1901 | and return symbol version for symbol version itself. */ | |
bb4d2ac2 L |
1902 | |
1903 | const char * | |
1081065c | 1904 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
0a1b45a2 AM |
1905 | bool base_p, |
1906 | bool *hidden) | |
bb4d2ac2 L |
1907 | { |
1908 | const char *version_string = NULL; | |
1909 | if (elf_dynversym (abfd) != 0 | |
1910 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1911 | { | |
1912 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1913 | ||
1914 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1915 | vernum &= VERSYM_VERSION; | |
1916 | ||
1917 | if (vernum == 0) | |
1918 | version_string = ""; | |
1f6f5dba L |
1919 | else if (vernum == 1 |
1920 | && (vernum > elf_tdata (abfd)->cverdefs | |
1921 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1922 | == VER_FLG_BASE))) | |
7e6e972f | 1923 | version_string = base_p ? "Base" : ""; |
bb4d2ac2 | 1924 | else if (vernum <= elf_tdata (abfd)->cverdefs) |
7e6e972f L |
1925 | { |
1926 | const char *nodename | |
1927 | = elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
8d55d10a AM |
1928 | version_string = ""; |
1929 | if (base_p | |
1930 | || nodename == NULL | |
1931 | || symbol->name == NULL | |
1932 | || strcmp (symbol->name, nodename) != 0) | |
1933 | version_string = nodename; | |
7e6e972f | 1934 | } |
bb4d2ac2 L |
1935 | else |
1936 | { | |
1937 | Elf_Internal_Verneed *t; | |
1938 | ||
7a815dd5 | 1939 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1940 | for (t = elf_tdata (abfd)->verref; |
1941 | t != NULL; | |
1942 | t = t->vn_nextref) | |
1943 | { | |
1944 | Elf_Internal_Vernaux *a; | |
1945 | ||
1946 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1947 | { | |
1948 | if (a->vna_other == vernum) | |
1949 | { | |
1950 | version_string = a->vna_nodename; | |
1951 | break; | |
1952 | } | |
1953 | } | |
1954 | } | |
1955 | } | |
1956 | } | |
1957 | return version_string; | |
1958 | } | |
1959 | ||
252b5132 RH |
1960 | /* Display ELF-specific fields of a symbol. */ |
1961 | ||
1962 | void | |
217aa764 AM |
1963 | bfd_elf_print_symbol (bfd *abfd, |
1964 | void *filep, | |
1965 | asymbol *symbol, | |
1966 | bfd_print_symbol_type how) | |
252b5132 | 1967 | { |
a50b1753 | 1968 | FILE *file = (FILE *) filep; |
252b5132 RH |
1969 | switch (how) |
1970 | { | |
1971 | case bfd_print_symbol_name: | |
1972 | fprintf (file, "%s", symbol->name); | |
1973 | break; | |
1974 | case bfd_print_symbol_more: | |
1975 | fprintf (file, "elf "); | |
60b89a18 | 1976 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1977 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1978 | break; |
1979 | case bfd_print_symbol_all: | |
1980 | { | |
4e8a9624 AM |
1981 | const char *section_name; |
1982 | const char *name = NULL; | |
9c5bfbb7 | 1983 | const struct elf_backend_data *bed; |
7a13edea | 1984 | unsigned char st_other; |
dbb410c3 | 1985 | bfd_vma val; |
bb4d2ac2 | 1986 | const char *version_string; |
0a1b45a2 | 1987 | bool hidden; |
c044fabd | 1988 | |
252b5132 | 1989 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1990 | |
1991 | bed = get_elf_backend_data (abfd); | |
1992 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1993 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1994 | |
1995 | if (name == NULL) | |
1996 | { | |
7ee38065 | 1997 | name = symbol->name; |
217aa764 | 1998 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1999 | } |
2000 | ||
252b5132 RH |
2001 | fprintf (file, " %s\t", section_name); |
2002 | /* Print the "other" value for a symbol. For common symbols, | |
2003 | we've already printed the size; now print the alignment. | |
2004 | For other symbols, we have no specified alignment, and | |
2005 | we've printed the address; now print the size. */ | |
dcf6c779 | 2006 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
2007 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
2008 | else | |
2009 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
2010 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
2011 | |
2012 | /* If we have version information, print it. */ | |
60bb06bc L |
2013 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2014 | symbol, | |
0a1b45a2 | 2015 | true, |
60bb06bc | 2016 | &hidden); |
bb4d2ac2 | 2017 | if (version_string) |
252b5132 | 2018 | { |
bb4d2ac2 | 2019 | if (!hidden) |
252b5132 RH |
2020 | fprintf (file, " %-11s", version_string); |
2021 | else | |
2022 | { | |
2023 | int i; | |
2024 | ||
2025 | fprintf (file, " (%s)", version_string); | |
2026 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2027 | putc (' ', file); | |
2028 | } | |
2029 | } | |
2030 | ||
2031 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2032 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2033 | |
7a13edea NC |
2034 | switch (st_other) |
2035 | { | |
2036 | case 0: break; | |
2037 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2038 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2039 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2040 | default: | |
2041 | /* Some other non-defined flags are also present, so print | |
2042 | everything hex. */ | |
2043 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2044 | } | |
252b5132 | 2045 | |
587ff49e | 2046 | fprintf (file, " %s", name); |
252b5132 RH |
2047 | } |
2048 | break; | |
2049 | } | |
2050 | } | |
252b5132 RH |
2051 | \f |
2052 | /* ELF .o/exec file reading */ | |
2053 | ||
c044fabd | 2054 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2055 | |
0a1b45a2 | 2056 | bool |
217aa764 | 2057 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2058 | { |
4fbb74a6 AM |
2059 | Elf_Internal_Shdr *hdr; |
2060 | Elf_Internal_Ehdr *ehdr; | |
2061 | const struct elf_backend_data *bed; | |
90937f86 | 2062 | const char *name; |
0a1b45a2 | 2063 | bool ret = true; |
252b5132 | 2064 | |
4fbb74a6 | 2065 | if (shindex >= elf_numsections (abfd)) |
0a1b45a2 | 2066 | return false; |
4fbb74a6 | 2067 | |
a86c6c19 AM |
2068 | /* PR17512: A corrupt ELF binary might contain a loop of sections via |
2069 | sh_link or sh_info. Detect this here, by refusing to load a | |
2070 | section that we are already in the process of loading. */ | |
2071 | if (elf_tdata (abfd)->being_created[shindex]) | |
bf67003b | 2072 | { |
a86c6c19 AM |
2073 | _bfd_error_handler |
2074 | (_("%pB: warning: loop in section dependencies detected"), abfd); | |
0a1b45a2 | 2075 | return false; |
bf67003b | 2076 | } |
0a1b45a2 | 2077 | elf_tdata (abfd)->being_created[shindex] = true; |
bf67003b | 2078 | |
4fbb74a6 AM |
2079 | hdr = elf_elfsections (abfd)[shindex]; |
2080 | ehdr = elf_elfheader (abfd); | |
2081 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2082 | hdr->sh_name); |
933d961a | 2083 | if (name == NULL) |
bf67003b | 2084 | goto fail; |
252b5132 | 2085 | |
4fbb74a6 | 2086 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2087 | switch (hdr->sh_type) |
2088 | { | |
2089 | case SHT_NULL: | |
2090 | /* Inactive section. Throw it away. */ | |
bf67003b | 2091 | goto success; |
252b5132 | 2092 | |
bf67003b NC |
2093 | case SHT_PROGBITS: /* Normal section with contents. */ |
2094 | case SHT_NOBITS: /* .bss section. */ | |
2095 | case SHT_HASH: /* .hash section. */ | |
2096 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2097 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2098 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2099 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2100 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2101 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2102 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2103 | goto success; | |
252b5132 | 2104 | |
797fc050 | 2105 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2106 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2107 | goto fail; |
2108 | ||
cfcac11d NC |
2109 | if (hdr->sh_link > elf_numsections (abfd)) |
2110 | { | |
caa83f8b | 2111 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2112 | field set to SHN_BEFORE or SHN_AFTER. */ |
2113 | switch (bfd_get_arch (abfd)) | |
2114 | { | |
caa83f8b | 2115 | case bfd_arch_i386: |
cfcac11d NC |
2116 | case bfd_arch_sparc: |
2117 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2118 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2119 | break; | |
2120 | /* Otherwise fall through. */ | |
2121 | default: | |
bf67003b | 2122 | goto fail; |
cfcac11d NC |
2123 | } |
2124 | } | |
2125 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2126 | goto fail; |
cfcac11d | 2127 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2128 | { |
2129 | Elf_Internal_Shdr *dynsymhdr; | |
2130 | ||
2131 | /* The shared libraries distributed with hpux11 have a bogus | |
2132 | sh_link field for the ".dynamic" section. Find the | |
2133 | string table for the ".dynsym" section instead. */ | |
2134 | if (elf_dynsymtab (abfd) != 0) | |
2135 | { | |
2136 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2137 | hdr->sh_link = dynsymhdr->sh_link; | |
2138 | } | |
2139 | else | |
2140 | { | |
2141 | unsigned int i, num_sec; | |
2142 | ||
2143 | num_sec = elf_numsections (abfd); | |
2144 | for (i = 1; i < num_sec; i++) | |
2145 | { | |
2146 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2147 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2148 | { | |
2149 | hdr->sh_link = dynsymhdr->sh_link; | |
2150 | break; | |
2151 | } | |
2152 | } | |
2153 | } | |
2154 | } | |
bf67003b | 2155 | goto success; |
797fc050 | 2156 | |
bf67003b | 2157 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2158 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2159 | goto success; |
252b5132 | 2160 | |
a50b2160 | 2161 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2162 | goto fail; |
2163 | ||
3337c1e5 | 2164 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2165 | { |
2166 | if (hdr->sh_size != 0) | |
bf67003b | 2167 | goto fail; |
eee3b786 AM |
2168 | /* Some assemblers erroneously set sh_info to one with a |
2169 | zero sh_size. ld sees this as a global symbol count | |
2170 | of (unsigned) -1. Fix it here. */ | |
2171 | hdr->sh_info = 0; | |
bf67003b | 2172 | goto success; |
eee3b786 | 2173 | } |
bf67003b | 2174 | |
16ad13ec NC |
2175 | /* PR 18854: A binary might contain more than one symbol table. |
2176 | Unusual, but possible. Warn, but continue. */ | |
2177 | if (elf_onesymtab (abfd) != 0) | |
2178 | { | |
4eca0228 | 2179 | _bfd_error_handler |
695344c0 | 2180 | /* xgettext:c-format */ |
871b3ab2 | 2181 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2182 | " - ignoring the table in section %u"), |
16ad13ec NC |
2183 | abfd, shindex); |
2184 | goto success; | |
2185 | } | |
252b5132 | 2186 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2187 | elf_symtab_hdr (abfd) = *hdr; |
2188 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2189 | abfd->flags |= HAS_SYMS; |
2190 | ||
2191 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2192 | SHF_ALLOC is set, and this is a shared object, then we also |
2193 | treat this section as a BFD section. We can not base the | |
2194 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2195 | set in a relocatable object file, which would confuse the | |
2196 | linker. */ | |
252b5132 RH |
2197 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2198 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2199 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2200 | shindex)) | |
bf67003b | 2201 | goto fail; |
252b5132 | 2202 | |
1b3a8575 AM |
2203 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2204 | can't read symbols without that section loaded as well. It | |
2205 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2206 | { |
2207 | elf_section_list * entry; | |
2208 | unsigned int i, num_sec; | |
1b3a8575 | 2209 | |
6a40cf0c NC |
2210 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2211 | if (entry->hdr.sh_link == shindex) | |
2212 | goto success; | |
2213 | ||
2214 | num_sec = elf_numsections (abfd); | |
2215 | for (i = shindex + 1; i < num_sec; i++) | |
2216 | { | |
2217 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2218 | ||
2219 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2220 | && hdr2->sh_link == shindex) | |
2221 | break; | |
2222 | } | |
2223 | ||
2224 | if (i == num_sec) | |
2225 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2226 | { |
2227 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2228 | |
1b3a8575 AM |
2229 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2230 | && hdr2->sh_link == shindex) | |
2231 | break; | |
2232 | } | |
6a40cf0c NC |
2233 | |
2234 | if (i != shindex) | |
2235 | ret = bfd_section_from_shdr (abfd, i); | |
2236 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2237 | goto success; | |
2238 | } | |
252b5132 | 2239 | |
bf67003b | 2240 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2241 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2242 | goto success; |
252b5132 | 2243 | |
a50b2160 | 2244 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2245 | goto fail; |
2246 | ||
eee3b786 AM |
2247 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2248 | { | |
2249 | if (hdr->sh_size != 0) | |
bf67003b NC |
2250 | goto fail; |
2251 | ||
eee3b786 AM |
2252 | /* Some linkers erroneously set sh_info to one with a |
2253 | zero sh_size. ld sees this as a global symbol count | |
2254 | of (unsigned) -1. Fix it here. */ | |
2255 | hdr->sh_info = 0; | |
bf67003b | 2256 | goto success; |
eee3b786 | 2257 | } |
bf67003b | 2258 | |
16ad13ec NC |
2259 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2260 | Unusual, but possible. Warn, but continue. */ | |
2261 | if (elf_dynsymtab (abfd) != 0) | |
2262 | { | |
4eca0228 | 2263 | _bfd_error_handler |
695344c0 | 2264 | /* xgettext:c-format */ |
871b3ab2 | 2265 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2266 | " - ignoring the table in section %u"), |
16ad13ec NC |
2267 | abfd, shindex); |
2268 | goto success; | |
2269 | } | |
252b5132 RH |
2270 | elf_dynsymtab (abfd) = shindex; |
2271 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2272 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2273 | abfd->flags |= HAS_SYMS; | |
2274 | ||
2275 | /* Besides being a symbol table, we also treat this as a regular | |
2276 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2277 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2278 | goto success; | |
252b5132 | 2279 | |
bf67003b | 2280 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2281 | { |
2282 | elf_section_list * entry; | |
9ad5cbcf | 2283 | |
6a40cf0c NC |
2284 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2285 | if (entry->ndx == shindex) | |
2286 | goto success; | |
07d6d2b8 | 2287 | |
7a6e0d89 | 2288 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2289 | if (entry == NULL) |
2290 | goto fail; | |
2291 | entry->ndx = shindex; | |
2292 | entry->hdr = * hdr; | |
2293 | entry->next = elf_symtab_shndx_list (abfd); | |
2294 | elf_symtab_shndx_list (abfd) = entry; | |
2295 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2296 | goto success; | |
2297 | } | |
9ad5cbcf | 2298 | |
bf67003b | 2299 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2300 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2301 | goto success; |
2302 | ||
252b5132 RH |
2303 | if (ehdr->e_shstrndx == shindex) |
2304 | { | |
2305 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2306 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2307 | goto success; |
252b5132 | 2308 | } |
bf67003b | 2309 | |
1b3a8575 AM |
2310 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2311 | { | |
2312 | symtab_strtab: | |
2313 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2314 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2315 | goto success; |
1b3a8575 | 2316 | } |
bf67003b | 2317 | |
1b3a8575 AM |
2318 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2319 | { | |
2320 | dynsymtab_strtab: | |
2321 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2322 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2323 | elf_elfsections (abfd)[shindex] = hdr; | |
2324 | /* We also treat this as a regular section, so that objcopy | |
2325 | can handle it. */ | |
bf67003b NC |
2326 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2327 | shindex); | |
2328 | goto success; | |
1b3a8575 | 2329 | } |
252b5132 | 2330 | |
1b3a8575 AM |
2331 | /* If the string table isn't one of the above, then treat it as a |
2332 | regular section. We need to scan all the headers to be sure, | |
2333 | just in case this strtab section appeared before the above. */ | |
2334 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2335 | { | |
2336 | unsigned int i, num_sec; | |
252b5132 | 2337 | |
1b3a8575 AM |
2338 | num_sec = elf_numsections (abfd); |
2339 | for (i = 1; i < num_sec; i++) | |
2340 | { | |
2341 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2342 | if (hdr2->sh_link == shindex) | |
2343 | { | |
933d961a JJ |
2344 | /* Prevent endless recursion on broken objects. */ |
2345 | if (i == shindex) | |
bf67003b | 2346 | goto fail; |
1b3a8575 | 2347 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2348 | goto fail; |
1b3a8575 AM |
2349 | if (elf_onesymtab (abfd) == i) |
2350 | goto symtab_strtab; | |
2351 | if (elf_dynsymtab (abfd) == i) | |
2352 | goto dynsymtab_strtab; | |
2353 | } | |
2354 | } | |
2355 | } | |
bf67003b NC |
2356 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2357 | goto success; | |
252b5132 RH |
2358 | |
2359 | case SHT_REL: | |
2360 | case SHT_RELA: | |
fb0b83d8 | 2361 | case SHT_RELR: |
252b5132 RH |
2362 | /* *These* do a lot of work -- but build no sections! */ |
2363 | { | |
2364 | asection *target_sect; | |
d4730f92 | 2365 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2366 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2367 | struct bfd_elf_section_data *esdt; |
fb0b83d8 | 2368 | bfd_size_type size; |
252b5132 | 2369 | |
fb0b83d8 FS |
2370 | if (hdr->sh_type == SHT_REL) |
2371 | size = bed->s->sizeof_rel; | |
2372 | else if (hdr->sh_type == SHT_RELA) | |
2373 | size = bed->s->sizeof_rela; | |
2374 | else | |
2375 | size = bed->s->arch_size / 8; | |
2376 | if (hdr->sh_entsize != size) | |
bf67003b | 2377 | goto fail; |
a50b2160 | 2378 | |
03ae5f59 | 2379 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2380 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2381 | { |
4eca0228 | 2382 | _bfd_error_handler |
695344c0 | 2383 | /* xgettext:c-format */ |
871b3ab2 | 2384 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2385 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2386 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2387 | shindex); | |
2388 | goto success; | |
03ae5f59 ILT |
2389 | } |
2390 | ||
252b5132 RH |
2391 | /* For some incomprehensible reason Oracle distributes |
2392 | libraries for Solaris in which some of the objects have | |
2393 | bogus sh_link fields. It would be nice if we could just | |
2394 | reject them, but, unfortunately, some people need to use | |
2395 | them. We scan through the section headers; if we find only | |
2396 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2397 | to it. I hope this doesn't break anything. |
2398 | ||
2399 | Don't do it on executable nor shared library. */ | |
2400 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2401 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2402 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2403 | { | |
9ad5cbcf | 2404 | unsigned int scan; |
252b5132 RH |
2405 | int found; |
2406 | ||
2407 | found = 0; | |
9ad5cbcf | 2408 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2409 | { |
2410 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2411 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2412 | { | |
2413 | if (found != 0) | |
2414 | { | |
2415 | found = 0; | |
2416 | break; | |
2417 | } | |
2418 | found = scan; | |
2419 | } | |
2420 | } | |
2421 | if (found != 0) | |
2422 | hdr->sh_link = found; | |
2423 | } | |
2424 | ||
2425 | /* Get the symbol table. */ | |
1b3a8575 AM |
2426 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2427 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2428 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2429 | goto fail; |
252b5132 | 2430 | |
a4bcd733 AM |
2431 | /* If this is an alloc section in an executable or shared |
2432 | library, or the reloc section does not use the main symbol | |
2433 | table we don't treat it as a reloc section. BFD can't | |
2434 | adequately represent such a section, so at least for now, | |
2435 | we don't try. We just present it as a normal section. We | |
2436 | also can't use it as a reloc section if it points to the | |
2437 | null section, an invalid section, another reloc section, or | |
2438 | its sh_link points to the null section. */ | |
2439 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2440 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2441 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2442 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2443 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2444 | || hdr->sh_info >= num_sec |
2445 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2446 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2447 | { |
2448 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2449 | shindex); | |
2450 | goto success; | |
2451 | } | |
252b5132 RH |
2452 | |
2453 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2454 | goto fail; |
2455 | ||
252b5132 RH |
2456 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2457 | if (target_sect == NULL) | |
bf67003b | 2458 | goto fail; |
252b5132 | 2459 | |
d4730f92 BS |
2460 | esdt = elf_section_data (target_sect); |
2461 | if (hdr->sh_type == SHT_RELA) | |
2462 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2463 | else |
d4730f92 BS |
2464 | p_hdr = &esdt->rel.hdr; |
2465 | ||
a7ba3896 NC |
2466 | /* PR 17512: file: 0b4f81b7. |
2467 | Also see PR 24456, for a file which deliberately has two reloc | |
2468 | sections. */ | |
06614111 | 2469 | if (*p_hdr != NULL) |
a7ba3896 | 2470 | { |
a859124d | 2471 | if (!bed->init_secondary_reloc_section (abfd, hdr, name, shindex)) |
a8e14f4c NC |
2472 | { |
2473 | _bfd_error_handler | |
2474 | /* xgettext:c-format */ | |
a859124d AM |
2475 | (_("%pB: warning: secondary relocation section '%s' " |
2476 | "for section %pA found - ignoring"), | |
a8e14f4c NC |
2477 | abfd, name, target_sect); |
2478 | } | |
956ea65c MM |
2479 | else |
2480 | esdt->has_secondary_relocs = true; | |
a7ba3896 NC |
2481 | goto success; |
2482 | } | |
a8e14f4c | 2483 | |
ef53be89 | 2484 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2485 | if (hdr2 == NULL) |
bf67003b | 2486 | goto fail; |
252b5132 | 2487 | *hdr2 = *hdr; |
d4730f92 | 2488 | *p_hdr = hdr2; |
252b5132 | 2489 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2490 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2491 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2492 | target_sect->flags |= SEC_RELOC; |
2493 | target_sect->relocation = NULL; | |
2494 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2495 | /* In the section to which the relocations apply, mark whether |
2496 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2497 | if (hdr->sh_size != 0) |
d4730f92 BS |
2498 | { |
2499 | if (hdr->sh_type == SHT_RELA) | |
2500 | target_sect->use_rela_p = 1; | |
2501 | } | |
252b5132 | 2502 | abfd->flags |= HAS_RELOC; |
bf67003b | 2503 | goto success; |
252b5132 | 2504 | } |
252b5132 RH |
2505 | |
2506 | case SHT_GNU_verdef: | |
2507 | elf_dynverdef (abfd) = shindex; | |
2508 | elf_tdata (abfd)->dynverdef_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_versym: | |
a50b2160 | 2513 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2514 | goto fail; |
2515 | ||
252b5132 RH |
2516 | elf_dynversym (abfd) = shindex; |
2517 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2518 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2519 | goto success; | |
252b5132 RH |
2520 | |
2521 | case SHT_GNU_verneed: | |
2522 | elf_dynverref (abfd) = shindex; | |
2523 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2524 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2525 | goto success; | |
252b5132 RH |
2526 | |
2527 | case SHT_SHLIB: | |
bf67003b | 2528 | goto success; |
252b5132 | 2529 | |
dbb410c3 | 2530 | case SHT_GROUP: |
44534af3 | 2531 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2532 | goto fail; |
2533 | ||
6dc132d9 | 2534 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2535 | goto fail; |
2536 | ||
bf67003b | 2537 | goto success; |
dbb410c3 | 2538 | |
252b5132 | 2539 | default: |
104d59d1 JM |
2540 | /* Possibly an attributes section. */ |
2541 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2542 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2543 | { | |
2544 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2545 | goto fail; |
104d59d1 | 2546 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2547 | goto success; |
104d59d1 JM |
2548 | } |
2549 | ||
252b5132 | 2550 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2551 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2552 | goto success; |
3eb70a79 L |
2553 | |
2554 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2555 | { | |
2556 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2557 | /* FIXME: How to properly handle allocated section reserved | |
2558 | for applications? */ | |
4eca0228 | 2559 | _bfd_error_handler |
695344c0 | 2560 | /* xgettext:c-format */ |
871b3ab2 | 2561 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2562 | abfd, hdr->sh_type, name); |
3eb70a79 | 2563 | else |
bf67003b NC |
2564 | { |
2565 | /* Allow sections reserved for applications. */ | |
2566 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2567 | shindex); | |
2568 | goto success; | |
2569 | } | |
3eb70a79 L |
2570 | } |
2571 | else if (hdr->sh_type >= SHT_LOPROC | |
2572 | && hdr->sh_type <= SHT_HIPROC) | |
2573 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2574 | _bfd_error_handler |
695344c0 | 2575 | /* xgettext:c-format */ |
871b3ab2 | 2576 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2577 | abfd, hdr->sh_type, name); |
3eb70a79 | 2578 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2579 | { |
2580 | /* Unrecognised OS-specific sections. */ | |
2581 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2582 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2583 | required to correctly process the section and the file should |
ff15b240 | 2584 | be rejected with an error message. */ |
4eca0228 | 2585 | _bfd_error_handler |
695344c0 | 2586 | /* xgettext:c-format */ |
871b3ab2 | 2587 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2588 | abfd, hdr->sh_type, name); |
ff15b240 | 2589 | else |
bf67003b NC |
2590 | { |
2591 | /* Otherwise it should be processed. */ | |
2592 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2593 | goto success; | |
2594 | } | |
ff15b240 | 2595 | } |
3eb70a79 L |
2596 | else |
2597 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2598 | _bfd_error_handler |
695344c0 | 2599 | /* xgettext:c-format */ |
871b3ab2 | 2600 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2601 | abfd, hdr->sh_type, name); |
3eb70a79 | 2602 | |
bf67003b | 2603 | goto fail; |
252b5132 RH |
2604 | } |
2605 | ||
bf67003b | 2606 | fail: |
0a1b45a2 | 2607 | ret = false; |
bf67003b | 2608 | success: |
0a1b45a2 | 2609 | elf_tdata (abfd)->being_created[shindex] = false; |
bf67003b | 2610 | return ret; |
252b5132 RH |
2611 | } |
2612 | ||
87d72d41 | 2613 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2614 | |
87d72d41 AM |
2615 | Elf_Internal_Sym * |
2616 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2617 | bfd *abfd, | |
2618 | unsigned long r_symndx) | |
ec338859 | 2619 | { |
ec338859 AM |
2620 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2621 | ||
a5d1b3b5 AM |
2622 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2623 | { | |
2624 | Elf_Internal_Shdr *symtab_hdr; | |
2625 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2626 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2627 | |
a5d1b3b5 AM |
2628 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2629 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2630 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2631 | return NULL; |
9ad5cbcf | 2632 | |
a5d1b3b5 AM |
2633 | if (cache->abfd != abfd) |
2634 | { | |
2635 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2636 | cache->abfd = abfd; | |
2637 | } | |
2638 | cache->indx[ent] = r_symndx; | |
ec338859 | 2639 | } |
a5d1b3b5 | 2640 | |
87d72d41 | 2641 | return &cache->sym[ent]; |
ec338859 AM |
2642 | } |
2643 | ||
252b5132 RH |
2644 | /* Given an ELF section number, retrieve the corresponding BFD |
2645 | section. */ | |
2646 | ||
2647 | asection * | |
91d6fa6a | 2648 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2649 | { |
91d6fa6a | 2650 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2651 | return NULL; |
91d6fa6a | 2652 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2653 | } |
2654 | ||
b35d266b | 2655 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2656 | { |
0112cd26 | 2657 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2658 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2659 | }; |
2660 | ||
b35d266b | 2661 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2662 | { |
0112cd26 | 2663 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2664 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2665 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2666 | }; |
2667 | ||
b35d266b | 2668 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2669 | { |
07d6d2b8 AM |
2670 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2671 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2672 | /* There are more DWARF sections than these, but they needn't be added here |
2673 | unless you have to cope with broken compilers that don't emit section | |
2674 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2675 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2676 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2677 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2678 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2679 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2680 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2681 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2682 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2683 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2684 | }; |
2685 | ||
b35d266b | 2686 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2687 | { |
07d6d2b8 | 2688 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2689 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2690 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2691 | }; |
2692 | ||
b35d266b | 2693 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2694 | { |
0112cd26 | 2695 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2c6f3e56 JL |
2696 | { STRING_COMMA_LEN (".gnu.linkonce.n"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2697 | { STRING_COMMA_LEN (".gnu.linkonce.p"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
07d6d2b8 AM |
2698 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2699 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2700 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2701 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2702 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2703 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2704 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2705 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2706 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2707 | }; |
2708 | ||
b35d266b | 2709 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2710 | { |
07d6d2b8 AM |
2711 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2712 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2713 | }; |
2714 | ||
b35d266b | 2715 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2716 | { |
07d6d2b8 | 2717 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2718 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2719 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2720 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2721 | }; |
2722 | ||
b35d266b | 2723 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2724 | { |
0112cd26 | 2725 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2726 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2727 | }; |
2728 | ||
b35d266b | 2729 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2730 | { |
2c6f3e56 | 2731 | { STRING_COMMA_LEN (".noinit"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
0112cd26 | 2732 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2733 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2734 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2735 | }; |
2736 | ||
b35d266b | 2737 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2738 | { |
f5e98b7d | 2739 | { STRING_COMMA_LEN (".persistent.bss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
2c6f3e56 | 2740 | { STRING_COMMA_LEN (".persistent"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
6f9dbcd4 | 2741 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2742 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2743 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2744 | }; |
2745 | ||
b35d266b | 2746 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2747 | { |
0112cd26 NC |
2748 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2749 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2750 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2751 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2752 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2753 | }; |
2754 | ||
b35d266b | 2755 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2756 | { |
0112cd26 NC |
2757 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2758 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2759 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2760 | /* See struct bfd_elf_special_section declaration for the semantics of |
2761 | this special case where .prefix_length != strlen (.prefix). */ | |
2762 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2763 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2764 | }; |
2765 | ||
b35d266b | 2766 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2767 | { |
07d6d2b8 AM |
2768 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2769 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2770 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2771 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2772 | }; |
2773 | ||
1b315056 CS |
2774 | static const struct bfd_elf_special_section special_sections_z[] = |
2775 | { | |
07d6d2b8 AM |
2776 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2777 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2778 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2779 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2780 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2781 | }; |
2782 | ||
e4c93b56 | 2783 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2784 | { |
7f4d3958 | 2785 | special_sections_b, /* 'b' */ |
98ece1b3 | 2786 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2787 | special_sections_d, /* 'd' */ |
2788 | NULL, /* 'e' */ | |
2789 | special_sections_f, /* 'f' */ | |
2790 | special_sections_g, /* 'g' */ | |
2791 | special_sections_h, /* 'h' */ | |
2792 | special_sections_i, /* 'i' */ | |
2793 | NULL, /* 'j' */ | |
2794 | NULL, /* 'k' */ | |
2795 | special_sections_l, /* 'l' */ | |
2796 | NULL, /* 'm' */ | |
2797 | special_sections_n, /* 'n' */ | |
2798 | NULL, /* 'o' */ | |
2799 | special_sections_p, /* 'p' */ | |
2800 | NULL, /* 'q' */ | |
2801 | special_sections_r, /* 'r' */ | |
2802 | special_sections_s, /* 's' */ | |
2803 | special_sections_t, /* 't' */ | |
1b315056 CS |
2804 | NULL, /* 'u' */ |
2805 | NULL, /* 'v' */ | |
2806 | NULL, /* 'w' */ | |
2807 | NULL, /* 'x' */ | |
2808 | NULL, /* 'y' */ | |
2809 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2810 | }; |
2811 | ||
551b43fd AM |
2812 | const struct bfd_elf_special_section * |
2813 | _bfd_elf_get_special_section (const char *name, | |
2814 | const struct bfd_elf_special_section *spec, | |
2815 | unsigned int rela) | |
2f89ff8d L |
2816 | { |
2817 | int i; | |
7f4d3958 | 2818 | int len; |
7f4d3958 | 2819 | |
551b43fd | 2820 | len = strlen (name); |
7f4d3958 | 2821 | |
551b43fd | 2822 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2823 | { |
2824 | int suffix_len; | |
551b43fd | 2825 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2826 | |
2827 | if (len < prefix_len) | |
2828 | continue; | |
551b43fd | 2829 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2830 | continue; |
2831 | ||
551b43fd | 2832 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2833 | if (suffix_len <= 0) |
2834 | { | |
2835 | if (name[prefix_len] != 0) | |
2836 | { | |
2837 | if (suffix_len == 0) | |
2838 | continue; | |
2839 | if (name[prefix_len] != '.' | |
2840 | && (suffix_len == -2 | |
551b43fd | 2841 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2842 | continue; |
2843 | } | |
2844 | } | |
2845 | else | |
2846 | { | |
2847 | if (len < prefix_len + suffix_len) | |
2848 | continue; | |
2849 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2850 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2851 | suffix_len) != 0) |
2852 | continue; | |
2853 | } | |
551b43fd | 2854 | return &spec[i]; |
7dcb9820 | 2855 | } |
2f89ff8d L |
2856 | |
2857 | return NULL; | |
2858 | } | |
2859 | ||
7dcb9820 | 2860 | const struct bfd_elf_special_section * |
29ef7005 | 2861 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2862 | { |
551b43fd AM |
2863 | int i; |
2864 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2865 | const struct elf_backend_data *bed; |
2f89ff8d L |
2866 | |
2867 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2868 | if (sec->name == NULL) |
2869 | return NULL; | |
2f89ff8d | 2870 | |
29ef7005 L |
2871 | bed = get_elf_backend_data (abfd); |
2872 | spec = bed->special_sections; | |
2873 | if (spec) | |
2874 | { | |
2875 | spec = _bfd_elf_get_special_section (sec->name, | |
2876 | bed->special_sections, | |
2877 | sec->use_rela_p); | |
2878 | if (spec != NULL) | |
2879 | return spec; | |
2880 | } | |
2881 | ||
551b43fd AM |
2882 | if (sec->name[0] != '.') |
2883 | return NULL; | |
2f89ff8d | 2884 | |
551b43fd | 2885 | i = sec->name[1] - 'b'; |
1b315056 | 2886 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2887 | return NULL; |
2888 | ||
2889 | spec = special_sections[i]; | |
2f89ff8d | 2890 | |
551b43fd AM |
2891 | if (spec == NULL) |
2892 | return NULL; | |
2893 | ||
2894 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2895 | } |
2896 | ||
0a1b45a2 | 2897 | bool |
217aa764 | 2898 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2899 | { |
2900 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2901 | const struct elf_backend_data *bed; |
7dcb9820 | 2902 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2903 | |
f0abc2a1 AM |
2904 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2905 | if (sdata == NULL) | |
2906 | { | |
a50b1753 | 2907 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2908 | sizeof (*sdata)); |
f0abc2a1 | 2909 | if (sdata == NULL) |
0a1b45a2 | 2910 | return false; |
217aa764 | 2911 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2912 | } |
bf572ba0 | 2913 | |
551b43fd AM |
2914 | /* Indicate whether or not this section should use RELA relocations. */ |
2915 | bed = get_elf_backend_data (abfd); | |
2916 | sec->use_rela_p = bed->default_use_rela_p; | |
2917 | ||
8c803a2d AM |
2918 | /* Set up ELF section type and flags for newly created sections, if |
2919 | there is an ABI mandated section. */ | |
2920 | ssect = (*bed->get_sec_type_attr) (abfd, sec); | |
2921 | if (ssect != NULL) | |
2f89ff8d | 2922 | { |
8c803a2d AM |
2923 | elf_section_type (sec) = ssect->type; |
2924 | elf_section_flags (sec) = ssect->attr; | |
2f89ff8d L |
2925 | } |
2926 | ||
f592407e | 2927 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2928 | } |
2929 | ||
2930 | /* Create a new bfd section from an ELF program header. | |
2931 | ||
2932 | Since program segments have no names, we generate a synthetic name | |
2933 | of the form segment<NUM>, where NUM is generally the index in the | |
2934 | program header table. For segments that are split (see below) we | |
2935 | generate the names segment<NUM>a and segment<NUM>b. | |
2936 | ||
2937 | Note that some program segments may have a file size that is different than | |
2938 | (less than) the memory size. All this means is that at execution the | |
2939 | system must allocate the amount of memory specified by the memory size, | |
2940 | but only initialize it with the first "file size" bytes read from the | |
2941 | file. This would occur for example, with program segments consisting | |
2942 | of combined data+bss. | |
2943 | ||
2944 | To handle the above situation, this routine generates TWO bfd sections | |
2945 | for the single program segment. The first has the length specified by | |
2946 | the file size of the segment, and the second has the length specified | |
2947 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2948 | into its initialized and uninitialized parts. |
252b5132 RH |
2949 | |
2950 | */ | |
2951 | ||
0a1b45a2 | 2952 | bool |
217aa764 AM |
2953 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2954 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2955 | int hdr_index, |
a50b1753 | 2956 | const char *type_name) |
252b5132 RH |
2957 | { |
2958 | asection *newsect; | |
2959 | char *name; | |
2960 | char namebuf[64]; | |
d4c88bbb | 2961 | size_t len; |
252b5132 | 2962 | int split; |
502794d4 | 2963 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 RH |
2964 | |
2965 | split = ((hdr->p_memsz > 0) | |
2966 | && (hdr->p_filesz > 0) | |
2967 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2968 | |
2969 | if (hdr->p_filesz > 0) | |
252b5132 | 2970 | { |
91d6fa6a | 2971 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2972 | len = strlen (namebuf) + 1; |
a50b1753 | 2973 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c | 2974 | if (!name) |
0a1b45a2 | 2975 | return false; |
d5191d0c AM |
2976 | memcpy (name, namebuf, len); |
2977 | newsect = bfd_make_section (abfd, name); | |
2978 | if (newsect == NULL) | |
0a1b45a2 | 2979 | return false; |
502794d4 CE |
2980 | newsect->vma = hdr->p_vaddr / opb; |
2981 | newsect->lma = hdr->p_paddr / opb; | |
d5191d0c AM |
2982 | newsect->size = hdr->p_filesz; |
2983 | newsect->filepos = hdr->p_offset; | |
2984 | newsect->flags |= SEC_HAS_CONTENTS; | |
2985 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2986 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2987 | { |
d5191d0c AM |
2988 | newsect->flags |= SEC_ALLOC; |
2989 | newsect->flags |= SEC_LOAD; | |
2990 | if (hdr->p_flags & PF_X) | |
2991 | { | |
2992 | /* FIXME: all we known is that it has execute PERMISSION, | |
2993 | may be data. */ | |
2994 | newsect->flags |= SEC_CODE; | |
2995 | } | |
2996 | } | |
2997 | if (!(hdr->p_flags & PF_W)) | |
2998 | { | |
2999 | newsect->flags |= SEC_READONLY; | |
252b5132 | 3000 | } |
252b5132 RH |
3001 | } |
3002 | ||
d5191d0c | 3003 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 3004 | { |
d5191d0c AM |
3005 | bfd_vma align; |
3006 | ||
91d6fa6a | 3007 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 3008 | len = strlen (namebuf) + 1; |
a50b1753 | 3009 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3010 | if (!name) |
0a1b45a2 | 3011 | return false; |
d4c88bbb | 3012 | memcpy (name, namebuf, len); |
252b5132 RH |
3013 | newsect = bfd_make_section (abfd, name); |
3014 | if (newsect == NULL) | |
0a1b45a2 | 3015 | return false; |
502794d4 CE |
3016 | newsect->vma = (hdr->p_vaddr + hdr->p_filesz) / opb; |
3017 | newsect->lma = (hdr->p_paddr + hdr->p_filesz) / opb; | |
eea6121a | 3018 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3019 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3020 | align = newsect->vma & -newsect->vma; | |
3021 | if (align == 0 || align > hdr->p_align) | |
3022 | align = hdr->p_align; | |
3023 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3024 | if (hdr->p_type == PT_LOAD) |
3025 | { | |
3026 | newsect->flags |= SEC_ALLOC; | |
3027 | if (hdr->p_flags & PF_X) | |
3028 | newsect->flags |= SEC_CODE; | |
3029 | } | |
3030 | if (!(hdr->p_flags & PF_W)) | |
3031 | newsect->flags |= SEC_READONLY; | |
3032 | } | |
3033 | ||
0a1b45a2 | 3034 | return true; |
252b5132 RH |
3035 | } |
3036 | ||
0a1b45a2 | 3037 | static bool |
864619bb KS |
3038 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) |
3039 | { | |
3040 | /* The return value is ignored. Build-ids are considered optional. */ | |
3041 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3042 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3043 | (templ, offset); | |
0a1b45a2 | 3044 | return false; |
864619bb KS |
3045 | } |
3046 | ||
0a1b45a2 | 3047 | bool |
91d6fa6a | 3048 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3049 | { |
9c5bfbb7 | 3050 | const struct elf_backend_data *bed; |
20cfcaae NC |
3051 | |
3052 | switch (hdr->p_type) | |
3053 | { | |
3054 | case PT_NULL: | |
91d6fa6a | 3055 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3056 | |
3057 | case PT_LOAD: | |
864619bb | 3058 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
0a1b45a2 | 3059 | return false; |
864619bb KS |
3060 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) |
3061 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
0a1b45a2 | 3062 | return true; |
20cfcaae NC |
3063 | |
3064 | case PT_DYNAMIC: | |
91d6fa6a | 3065 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3066 | |
3067 | case PT_INTERP: | |
91d6fa6a | 3068 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3069 | |
3070 | case PT_NOTE: | |
91d6fa6a | 3071 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
0a1b45a2 | 3072 | return false; |
276da9b3 L |
3073 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3074 | hdr->p_align)) | |
0a1b45a2 AM |
3075 | return false; |
3076 | return true; | |
20cfcaae NC |
3077 | |
3078 | case PT_SHLIB: | |
91d6fa6a | 3079 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3080 | |
3081 | case PT_PHDR: | |
91d6fa6a | 3082 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3083 | |
811072d8 | 3084 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3085 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3086 | "eh_frame_hdr"); |
3087 | ||
2b05f1b7 | 3088 | case PT_GNU_STACK: |
91d6fa6a | 3089 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3090 | |
8c37241b | 3091 | case PT_GNU_RELRO: |
91d6fa6a | 3092 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3093 | |
20cfcaae | 3094 | default: |
8c1acd09 | 3095 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3096 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3097 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3098 | } |
3099 | } | |
3100 | ||
d4730f92 BS |
3101 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3102 | REL or RELA. */ | |
3103 | ||
3104 | Elf_Internal_Shdr * | |
3105 | _bfd_elf_single_rel_hdr (asection *sec) | |
3106 | { | |
3107 | if (elf_section_data (sec)->rel.hdr) | |
3108 | { | |
3109 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3110 | return elf_section_data (sec)->rel.hdr; | |
3111 | } | |
3112 | else | |
3113 | return elf_section_data (sec)->rela.hdr; | |
3114 | } | |
3115 | ||
0a1b45a2 | 3116 | static bool |
3e19fb8f L |
3117 | _bfd_elf_set_reloc_sh_name (bfd *abfd, |
3118 | Elf_Internal_Shdr *rel_hdr, | |
3119 | const char *sec_name, | |
0a1b45a2 | 3120 | bool use_rela_p) |
3e19fb8f L |
3121 | { |
3122 | char *name = (char *) bfd_alloc (abfd, | |
3123 | sizeof ".rela" + strlen (sec_name)); | |
3124 | if (name == NULL) | |
0a1b45a2 | 3125 | return false; |
3e19fb8f L |
3126 | |
3127 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3128 | rel_hdr->sh_name = | |
3129 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
0a1b45a2 | 3130 | false); |
3e19fb8f | 3131 | if (rel_hdr->sh_name == (unsigned int) -1) |
0a1b45a2 | 3132 | return false; |
3e19fb8f | 3133 | |
0a1b45a2 | 3134 | return true; |
3e19fb8f L |
3135 | } |
3136 | ||
d4730f92 BS |
3137 | /* Allocate and initialize a section-header for a new reloc section, |
3138 | containing relocations against ASECT. It is stored in RELDATA. If | |
3139 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3140 | relocations. */ | |
23bc299b | 3141 | |
0a1b45a2 | 3142 | static bool |
217aa764 | 3143 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3144 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3145 | const char *sec_name, |
0a1b45a2 AM |
3146 | bool use_rela_p, |
3147 | bool delay_st_name_p) | |
23bc299b | 3148 | { |
d4730f92 | 3149 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3150 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3151 | |
d4730f92 | 3152 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3153 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3154 | reldata->hdr = rel_hdr; |
23bc299b | 3155 | |
3e19fb8f L |
3156 | if (delay_st_name_p) |
3157 | rel_hdr->sh_name = (unsigned int) -1; | |
3158 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3159 | use_rela_p)) | |
0a1b45a2 | 3160 | return false; |
23bc299b MM |
3161 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3162 | rel_hdr->sh_entsize = (use_rela_p | |
3163 | ? bed->s->sizeof_rela | |
3164 | : bed->s->sizeof_rel); | |
72de5009 | 3165 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3166 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3167 | rel_hdr->sh_addr = 0; |
3168 | rel_hdr->sh_size = 0; | |
3169 | rel_hdr->sh_offset = 0; | |
3170 | ||
0a1b45a2 | 3171 | return true; |
23bc299b MM |
3172 | } |
3173 | ||
94be91de JB |
3174 | /* Return the default section type based on the passed in section flags. */ |
3175 | ||
3176 | int | |
3177 | bfd_elf_get_default_section_type (flagword flags) | |
3178 | { | |
0e41bebb | 3179 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3180 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3181 | return SHT_NOBITS; |
3182 | return SHT_PROGBITS; | |
3183 | } | |
3184 | ||
d4730f92 BS |
3185 | struct fake_section_arg |
3186 | { | |
3187 | struct bfd_link_info *link_info; | |
0a1b45a2 | 3188 | bool failed; |
d4730f92 BS |
3189 | }; |
3190 | ||
252b5132 RH |
3191 | /* Set up an ELF internal section header for a section. */ |
3192 | ||
252b5132 | 3193 | static void |
d4730f92 | 3194 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3195 | { |
d4730f92 | 3196 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3197 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3198 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3199 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3200 | unsigned int sh_type; |
0ce398f1 | 3201 | const char *name = asect->name; |
0a1b45a2 | 3202 | bool delay_st_name_p = false; |
233bf4f8 | 3203 | bfd_vma mask; |
252b5132 | 3204 | |
d4730f92 | 3205 | if (arg->failed) |
252b5132 RH |
3206 | { |
3207 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3208 | loop. */ |
252b5132 RH |
3209 | return; |
3210 | } | |
3211 | ||
d4730f92 | 3212 | this_hdr = &esd->this_hdr; |
252b5132 | 3213 | |
f6fe1ccd | 3214 | if (arg->link_info) |
0ce398f1 | 3215 | { |
f6fe1ccd L |
3216 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3217 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3218 | && (asect->flags & SEC_DEBUGGING) | |
3219 | && name[1] == 'd' | |
3220 | && name[6] == '_') | |
3221 | { | |
3222 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3223 | compressed. */ | |
3224 | asect->flags |= SEC_ELF_COMPRESS; | |
dd905818 | 3225 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3226 | name to section name section after it is compressed in |
3227 | _bfd_elf_assign_file_positions_for_non_load. */ | |
0a1b45a2 | 3228 | delay_st_name_p = true; |
f6fe1ccd L |
3229 | } |
3230 | } | |
3231 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3232 | { | |
3233 | /* objcopy: rename output DWARF debug section. */ | |
3234 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3235 | { | |
3236 | /* When we decompress or compress with SHF_COMPRESSED, | |
3237 | convert section name from .zdebug_* to .debug_* if | |
3238 | needed. */ | |
3239 | if (name[1] == 'z') | |
3240 | { | |
3241 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3242 | if (new_name == NULL) | |
3243 | { | |
0a1b45a2 | 3244 | arg->failed = true; |
f6fe1ccd L |
3245 | return; |
3246 | } | |
3247 | name = new_name; | |
3248 | } | |
3249 | } | |
3250 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3251 | { |
f6fe1ccd L |
3252 | /* PR binutils/18087: Compression does not always make a |
3253 | section smaller. So only rename the section when | |
3254 | compression has actually taken place. If input section | |
3255 | name is .zdebug_*, we should never compress it again. */ | |
3256 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3257 | if (new_name == NULL) |
3258 | { | |
0a1b45a2 | 3259 | arg->failed = true; |
0ce398f1 L |
3260 | return; |
3261 | } | |
f6fe1ccd L |
3262 | BFD_ASSERT (name[1] != 'z'); |
3263 | name = new_name; | |
0ce398f1 L |
3264 | } |
3265 | } | |
3266 | ||
3e19fb8f L |
3267 | if (delay_st_name_p) |
3268 | this_hdr->sh_name = (unsigned int) -1; | |
3269 | else | |
252b5132 | 3270 | { |
3e19fb8f L |
3271 | this_hdr->sh_name |
3272 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
0a1b45a2 | 3273 | name, false); |
3e19fb8f L |
3274 | if (this_hdr->sh_name == (unsigned int) -1) |
3275 | { | |
0a1b45a2 | 3276 | arg->failed = true; |
3e19fb8f L |
3277 | return; |
3278 | } | |
252b5132 RH |
3279 | } |
3280 | ||
a4d8e49b | 3281 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3282 | |
3283 | if ((asect->flags & SEC_ALLOC) != 0 | |
3284 | || asect->user_set_vma) | |
502794d4 | 3285 | this_hdr->sh_addr = asect->vma * bfd_octets_per_byte (abfd, asect); |
252b5132 RH |
3286 | else |
3287 | this_hdr->sh_addr = 0; | |
3288 | ||
3289 | this_hdr->sh_offset = 0; | |
eea6121a | 3290 | this_hdr->sh_size = asect->size; |
252b5132 | 3291 | this_hdr->sh_link = 0; |
c86934ce NC |
3292 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3293 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3294 | { | |
4eca0228 | 3295 | _bfd_error_handler |
695344c0 | 3296 | /* xgettext:c-format */ |
9793eb77 | 3297 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3298 | abfd, asect->alignment_power, asect); |
0a1b45a2 | 3299 | arg->failed = true; |
c86934ce NC |
3300 | return; |
3301 | } | |
233bf4f8 AM |
3302 | /* Set sh_addralign to the highest power of two given by alignment |
3303 | consistent with the section VMA. Linker scripts can force VMA. */ | |
3304 | mask = ((bfd_vma) 1 << asect->alignment_power) | this_hdr->sh_addr; | |
3305 | this_hdr->sh_addralign = mask & -mask; | |
252b5132 RH |
3306 | /* The sh_entsize and sh_info fields may have been set already by |
3307 | copy_private_section_data. */ | |
3308 | ||
3309 | this_hdr->bfd_section = asect; | |
3310 | this_hdr->contents = NULL; | |
3311 | ||
3cddba1e L |
3312 | /* If the section type is unspecified, we set it based on |
3313 | asect->flags. */ | |
98ece1b3 AM |
3314 | if ((asect->flags & SEC_GROUP) != 0) |
3315 | sh_type = SHT_GROUP; | |
98ece1b3 | 3316 | else |
94be91de | 3317 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3318 | |
3cddba1e | 3319 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3320 | this_hdr->sh_type = sh_type; |
3321 | else if (this_hdr->sh_type == SHT_NOBITS | |
3322 | && sh_type == SHT_PROGBITS | |
3323 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3324 | { |
98ece1b3 AM |
3325 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3326 | allow the link to proceed. This can happen when users link | |
3327 | non-bss input sections to bss output sections, or emit data | |
3328 | to a bss output section via a linker script. */ | |
4eca0228 | 3329 | _bfd_error_handler |
871b3ab2 | 3330 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3331 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3332 | } |
3333 | ||
2f89ff8d | 3334 | switch (this_hdr->sh_type) |
252b5132 | 3335 | { |
2f89ff8d | 3336 | default: |
2f89ff8d L |
3337 | break; |
3338 | ||
3339 | case SHT_STRTAB: | |
2f89ff8d L |
3340 | case SHT_NOTE: |
3341 | case SHT_NOBITS: | |
3342 | case SHT_PROGBITS: | |
3343 | break; | |
606851fb AM |
3344 | |
3345 | case SHT_INIT_ARRAY: | |
3346 | case SHT_FINI_ARRAY: | |
3347 | case SHT_PREINIT_ARRAY: | |
3348 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3349 | break; | |
2f89ff8d L |
3350 | |
3351 | case SHT_HASH: | |
c7ac6ff8 | 3352 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3353 | break; |
5de3bf90 | 3354 | |
2f89ff8d | 3355 | case SHT_DYNSYM: |
252b5132 | 3356 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3357 | break; |
3358 | ||
3359 | case SHT_DYNAMIC: | |
252b5132 | 3360 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3361 | break; |
3362 | ||
3363 | case SHT_RELA: | |
3364 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3365 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3366 | break; | |
3367 | ||
3368 | case SHT_REL: | |
3369 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3370 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3371 | break; | |
3372 | ||
3373 | case SHT_GNU_versym: | |
252b5132 | 3374 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3375 | break; |
3376 | ||
3377 | case SHT_GNU_verdef: | |
252b5132 RH |
3378 | this_hdr->sh_entsize = 0; |
3379 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3380 | cverdefs. The linker will set cverdefs, but sh_info will be |
3381 | zero. */ | |
252b5132 RH |
3382 | if (this_hdr->sh_info == 0) |
3383 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3384 | else | |
3385 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3386 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3387 | break; |
3388 | ||
3389 | case SHT_GNU_verneed: | |
252b5132 RH |
3390 | this_hdr->sh_entsize = 0; |
3391 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3392 | cverrefs. The linker will set cverrefs, but sh_info will be |
3393 | zero. */ | |
252b5132 RH |
3394 | if (this_hdr->sh_info == 0) |
3395 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3396 | else | |
3397 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3398 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3399 | break; |
3400 | ||
3401 | case SHT_GROUP: | |
1783205a | 3402 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3403 | break; |
fdc90cb4 JJ |
3404 | |
3405 | case SHT_GNU_HASH: | |
3406 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3407 | break; | |
dbb410c3 | 3408 | } |
252b5132 RH |
3409 | |
3410 | if ((asect->flags & SEC_ALLOC) != 0) | |
3411 | this_hdr->sh_flags |= SHF_ALLOC; | |
3412 | if ((asect->flags & SEC_READONLY) == 0) | |
3413 | this_hdr->sh_flags |= SHF_WRITE; | |
3414 | if ((asect->flags & SEC_CODE) != 0) | |
3415 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3416 | if ((asect->flags & SEC_MERGE) != 0) |
3417 | { | |
3418 | this_hdr->sh_flags |= SHF_MERGE; | |
3419 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3420 | } |
84865015 NC |
3421 | if ((asect->flags & SEC_STRINGS) != 0) |
3422 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3423 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3424 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3425 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3426 | { |
3427 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3428 | if (asect->size == 0 |
3429 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3430 | { |
3a800eb9 | 3431 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3432 | |
704afa60 | 3433 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3434 | if (o != NULL) |
3435 | { | |
704afa60 | 3436 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3437 | if (this_hdr->sh_size != 0) |
3438 | this_hdr->sh_type = SHT_NOBITS; | |
3439 | } | |
704afa60 JJ |
3440 | } |
3441 | } | |
18ae9cc1 L |
3442 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3443 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3444 | |
d4730f92 BS |
3445 | /* If the section has relocs, set up a section header for the |
3446 | SHT_REL[A] section. If two relocation sections are required for | |
3447 | this section, it is up to the processor-specific back-end to | |
3448 | create the other. */ | |
3449 | if ((asect->flags & SEC_RELOC) != 0) | |
3450 | { | |
3451 | /* When doing a relocatable link, create both REL and RELA sections if | |
3452 | needed. */ | |
3453 | if (arg->link_info | |
3454 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3455 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3456 | && (bfd_link_relocatable (arg->link_info) |
3457 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3458 | { |
3459 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3460 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
0a1b45a2 | 3461 | false, delay_st_name_p)) |
d4730f92 | 3462 | { |
0a1b45a2 | 3463 | arg->failed = true; |
d4730f92 BS |
3464 | return; |
3465 | } | |
3466 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3467 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
0a1b45a2 | 3468 | true, delay_st_name_p)) |
d4730f92 | 3469 | { |
0a1b45a2 | 3470 | arg->failed = true; |
d4730f92 BS |
3471 | return; |
3472 | } | |
3473 | } | |
3474 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3475 | (asect->use_rela_p | |
3476 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3477 | name, |
3e19fb8f L |
3478 | asect->use_rela_p, |
3479 | delay_st_name_p)) | |
db4677b8 | 3480 | { |
0a1b45a2 | 3481 | arg->failed = true; |
db4677b8 AM |
3482 | return; |
3483 | } | |
d4730f92 BS |
3484 | } |
3485 | ||
252b5132 | 3486 | /* Check for processor-specific section types. */ |
0414f35b | 3487 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3488 | if (bed->elf_backend_fake_sections |
3489 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 | 3490 | { |
0a1b45a2 | 3491 | arg->failed = true; |
db4677b8 AM |
3492 | return; |
3493 | } | |
252b5132 | 3494 | |
42bb2e33 | 3495 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3496 | { |
3497 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3498 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3499 | this_hdr->sh_type = sh_type; |
3500 | } | |
252b5132 RH |
3501 | } |
3502 | ||
bcacc0f5 AM |
3503 | /* Fill in the contents of a SHT_GROUP section. Called from |
3504 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3505 | when ELF targets use the generic linker, ld. Called for ld -r | |
3506 | from bfd_elf_final_link. */ | |
dbb410c3 | 3507 | |
1126897b | 3508 | void |
217aa764 | 3509 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3510 | { |
0a1b45a2 | 3511 | bool *failedptr = (bool *) failedptrarg; |
9dce4196 | 3512 | asection *elt, *first; |
dbb410c3 | 3513 | unsigned char *loc; |
0a1b45a2 | 3514 | bool gas; |
dbb410c3 | 3515 | |
7e4111ad L |
3516 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3517 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3518 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3519 | || sec->size == 0 | |
dbb410c3 AM |
3520 | || *failedptr) |
3521 | return; | |
3522 | ||
bcacc0f5 AM |
3523 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3524 | { | |
3525 | unsigned long symindx = 0; | |
3526 | ||
3527 | /* elf_group_id will have been set up by objcopy and the | |
3528 | generic linker. */ | |
3529 | if (elf_group_id (sec) != NULL) | |
3530 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3531 | |
bcacc0f5 AM |
3532 | if (symindx == 0) |
3533 | { | |
3534 | /* If called from the assembler, swap_out_syms will have set up | |
6a541707 NC |
3535 | elf_section_syms. |
3536 | PR 25699: A corrupt input file could contain bogus group info. */ | |
3537 | if (elf_section_syms (abfd) == NULL) | |
3538 | { | |
0a1b45a2 | 3539 | *failedptr = true; |
6a541707 NC |
3540 | return; |
3541 | } | |
bcacc0f5 AM |
3542 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; |
3543 | } | |
3544 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3545 | } | |
3546 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3547 | { |
bcacc0f5 AM |
3548 | /* The ELF backend linker sets sh_info to -2 when the group |
3549 | signature symbol is global, and thus the index can't be | |
3550 | set until all local symbols are output. */ | |
53720c49 AM |
3551 | asection *igroup; |
3552 | struct bfd_elf_section_data *sec_data; | |
3553 | unsigned long symndx; | |
3554 | unsigned long extsymoff; | |
bcacc0f5 AM |
3555 | struct elf_link_hash_entry *h; |
3556 | ||
53720c49 AM |
3557 | /* The point of this little dance to the first SHF_GROUP section |
3558 | then back to the SHT_GROUP section is that this gets us to | |
3559 | the SHT_GROUP in the input object. */ | |
3560 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3561 | sec_data = elf_section_data (igroup); | |
3562 | symndx = sec_data->this_hdr.sh_info; | |
3563 | extsymoff = 0; | |
bcacc0f5 AM |
3564 | if (!elf_bad_symtab (igroup->owner)) |
3565 | { | |
3566 | Elf_Internal_Shdr *symtab_hdr; | |
3567 | ||
3568 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3569 | extsymoff = symtab_hdr->sh_info; | |
3570 | } | |
3571 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3572 | while (h->root.type == bfd_link_hash_indirect | |
3573 | || h->root.type == bfd_link_hash_warning) | |
3574 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3575 | ||
3576 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3577 | } |
dbb410c3 | 3578 | |
1126897b | 3579 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
0a1b45a2 | 3580 | gas = true; |
dbb410c3 AM |
3581 | if (sec->contents == NULL) |
3582 | { | |
0a1b45a2 | 3583 | gas = false; |
a50b1753 | 3584 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3585 | |
3586 | /* Arrange for the section to be written out. */ | |
3587 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3588 | if (sec->contents == NULL) |
3589 | { | |
0a1b45a2 | 3590 | *failedptr = true; |
dbb410c3 AM |
3591 | return; |
3592 | } | |
3593 | } | |
3594 | ||
eea6121a | 3595 | loc = sec->contents + sec->size; |
dbb410c3 | 3596 | |
9dce4196 AM |
3597 | /* Get the pointer to the first section in the group that gas |
3598 | squirreled away here. objcopy arranges for this to be set to the | |
3599 | start of the input section group. */ | |
3600 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3601 | |
3602 | /* First element is a flag word. Rest of section is elf section | |
3603 | indices for all the sections of the group. Write them backwards | |
3604 | just to keep the group in the same order as given in .section | |
3605 | directives, not that it matters. */ | |
3606 | while (elt != NULL) | |
3607 | { | |
9dce4196 | 3608 | asection *s; |
9dce4196 | 3609 | |
9dce4196 | 3610 | s = elt; |
415f38a6 AM |
3611 | if (!gas) |
3612 | s = s->output_section; | |
3613 | if (s != NULL | |
3614 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3615 | { |
db4677b8 | 3616 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3617 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3618 | ||
3619 | if (elf_sec->rel.hdr != NULL | |
3620 | && (gas | |
3621 | || (input_elf_sec->rel.hdr != NULL | |
3622 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3623 | { |
28e07a05 | 3624 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3625 | loc -= 4; |
3626 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3627 | } | |
28e07a05 AM |
3628 | if (elf_sec->rela.hdr != NULL |
3629 | && (gas | |
3630 | || (input_elf_sec->rela.hdr != NULL | |
3631 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3632 | { |
28e07a05 | 3633 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3634 | loc -= 4; |
3635 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3636 | } | |
01e1a5bc | 3637 | loc -= 4; |
db4677b8 | 3638 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3639 | } |
945906ff | 3640 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3641 | if (elt == first) |
3642 | break; | |
dbb410c3 AM |
3643 | } |
3644 | ||
7bdf4127 AB |
3645 | loc -= 4; |
3646 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3647 | |
9dce4196 | 3648 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3649 | } |
3650 | ||
bce964aa AM |
3651 | /* Given NAME, the name of a relocation section stripped of its |
3652 | .rel/.rela prefix, return the section in ABFD to which the | |
3653 | relocations apply. */ | |
bd53a53a L |
3654 | |
3655 | asection * | |
bce964aa AM |
3656 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3657 | { | |
3658 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3659 | section likely apply to .got.plt or .got section. */ | |
3660 | if (get_elf_backend_data (abfd)->want_got_plt | |
3661 | && strcmp (name, ".plt") == 0) | |
3662 | { | |
3663 | asection *sec; | |
3664 | ||
3665 | name = ".got.plt"; | |
3666 | sec = bfd_get_section_by_name (abfd, name); | |
3667 | if (sec != NULL) | |
3668 | return sec; | |
3669 | name = ".got"; | |
3670 | } | |
3671 | ||
3672 | return bfd_get_section_by_name (abfd, name); | |
3673 | } | |
3674 | ||
3675 | /* Return the section to which RELOC_SEC applies. */ | |
3676 | ||
3677 | static asection * | |
3678 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3679 | { |
3680 | const char *name; | |
3681 | unsigned int type; | |
3682 | bfd *abfd; | |
bce964aa | 3683 | const struct elf_backend_data *bed; |
bd53a53a L |
3684 | |
3685 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3686 | if (type != SHT_REL && type != SHT_RELA) | |
3687 | return NULL; | |
3688 | ||
3689 | /* We look up the section the relocs apply to by name. */ | |
3690 | name = reloc_sec->name; | |
3f3328b8 | 3691 | if (!startswith (name, ".rel")) |
bce964aa AM |
3692 | return NULL; |
3693 | name += 4; | |
3694 | if (type == SHT_RELA && *name++ != 'a') | |
3695 | return NULL; | |
bd53a53a | 3696 | |
bd53a53a | 3697 | abfd = reloc_sec->owner; |
bce964aa AM |
3698 | bed = get_elf_backend_data (abfd); |
3699 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3700 | } |
3701 | ||
252b5132 RH |
3702 | /* Assign all ELF section numbers. The dummy first section is handled here |
3703 | too. The link/info pointers for the standard section types are filled | |
67411cbf AM |
3704 | in here too, while we're at it. LINK_INFO will be 0 when arriving |
3705 | here for objcopy, and when using the generic ELF linker. */ | |
252b5132 | 3706 | |
0a1b45a2 | 3707 | static bool |
da9f89d4 | 3708 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3709 | { |
3710 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3711 | asection *sec; | |
3e19fb8f | 3712 | unsigned int section_number; |
252b5132 | 3713 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3714 | struct bfd_elf_section_data *d; |
0a1b45a2 | 3715 | bool need_symtab; |
446f7ed5 | 3716 | size_t amt; |
252b5132 RH |
3717 | |
3718 | section_number = 1; | |
3719 | ||
2b0f7ef9 JJ |
3720 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3721 | ||
da9f89d4 | 3722 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3723 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3724 | { |
ef53be89 | 3725 | size_t reloc_count = 0; |
14f2c699 | 3726 | |
da9f89d4 | 3727 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3728 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3729 | { |
5daa8fe7 | 3730 | d = elf_section_data (sec); |
da9f89d4 L |
3731 | |
3732 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3733 | { |
5daa8fe7 | 3734 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3735 | { |
3736 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3737 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3738 | abfd->section_count--; |
da9f89d4 | 3739 | } |
08a40648 | 3740 | else |
4fbb74a6 | 3741 | d->this_idx = section_number++; |
da9f89d4 | 3742 | } |
14f2c699 L |
3743 | |
3744 | /* Count relocations. */ | |
3745 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3746 | } |
14f2c699 L |
3747 | |
3748 | /* Clear HAS_RELOC if there are no relocations. */ | |
3749 | if (reloc_count == 0) | |
3750 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3751 | } |
3752 | ||
3753 | for (sec = abfd->sections; sec; sec = sec->next) | |
3754 | { | |
3755 | d = elf_section_data (sec); | |
3756 | ||
3757 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3758 | d->this_idx = section_number++; |
3e19fb8f L |
3759 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3760 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3761 | if (d->rel.hdr) |
2b0f7ef9 | 3762 | { |
d4730f92 | 3763 | d->rel.idx = section_number++; |
3e19fb8f L |
3764 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3765 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3766 | } |
d4730f92 BS |
3767 | else |
3768 | d->rel.idx = 0; | |
23bc299b | 3769 | |
d4730f92 | 3770 | if (d->rela.hdr) |
2b0f7ef9 | 3771 | { |
d4730f92 | 3772 | d->rela.idx = section_number++; |
3e19fb8f L |
3773 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3774 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3775 | } |
23bc299b | 3776 | else |
d4730f92 | 3777 | d->rela.idx = 0; |
252b5132 RH |
3778 | } |
3779 | ||
3516e984 L |
3780 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3781 | || (link_info == NULL | |
3782 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3783 | == HAS_RELOC))); | |
3784 | if (need_symtab) | |
252b5132 | 3785 | { |
12bd6957 | 3786 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3787 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3788 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3789 | { |
7a6e0d89 | 3790 | elf_section_list *entry; |
6a40cf0c NC |
3791 | |
3792 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3793 | ||
7a6e0d89 | 3794 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3795 | entry->ndx = section_number++; |
3796 | elf_symtab_shndx_list (abfd) = entry; | |
3797 | entry->hdr.sh_name | |
9ad5cbcf | 3798 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
0a1b45a2 | 3799 | ".symtab_shndx", false); |
6a40cf0c | 3800 | if (entry->hdr.sh_name == (unsigned int) -1) |
0a1b45a2 | 3801 | return false; |
9ad5cbcf | 3802 | } |
12bd6957 | 3803 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3804 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3805 | } |
3806 | ||
dd905818 NC |
3807 | elf_shstrtab_sec (abfd) = section_number++; |
3808 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3809 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3810 | ||
1c52a645 L |
3811 | if (section_number >= SHN_LORESERVE) |
3812 | { | |
695344c0 | 3813 | /* xgettext:c-format */ |
871b3ab2 | 3814 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 | 3815 | abfd, section_number); |
0a1b45a2 | 3816 | return false; |
1c52a645 L |
3817 | } |
3818 | ||
9ad5cbcf | 3819 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3820 | elf_elfheader (abfd)->e_shnum = section_number; |
3821 | ||
3822 | /* Set up the list of section header pointers, in agreement with the | |
3823 | indices. */ | |
446f7ed5 AM |
3824 | amt = section_number * sizeof (Elf_Internal_Shdr *); |
3825 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc (abfd, amt); | |
252b5132 | 3826 | if (i_shdrp == NULL) |
0a1b45a2 | 3827 | return false; |
252b5132 | 3828 | |
a50b1753 | 3829 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3830 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3831 | if (i_shdrp[0] == NULL) |
3832 | { | |
3833 | bfd_release (abfd, i_shdrp); | |
0a1b45a2 | 3834 | return false; |
252b5132 | 3835 | } |
252b5132 RH |
3836 | |
3837 | elf_elfsections (abfd) = i_shdrp; | |
3838 | ||
12bd6957 | 3839 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3840 | if (need_symtab) |
252b5132 | 3841 | { |
12bd6957 | 3842 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3843 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3844 | { |
6a40cf0c NC |
3845 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3846 | BFD_ASSERT (entry != NULL); | |
3847 | i_shdrp[entry->ndx] = & entry->hdr; | |
3848 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3849 | } |
12bd6957 AM |
3850 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3851 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3852 | } |
38ce5b11 | 3853 | |
252b5132 RH |
3854 | for (sec = abfd->sections; sec; sec = sec->next) |
3855 | { | |
252b5132 | 3856 | asection *s; |
252b5132 | 3857 | |
91d6fa6a NC |
3858 | d = elf_section_data (sec); |
3859 | ||
252b5132 | 3860 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3861 | if (d->rel.idx != 0) |
3862 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3863 | if (d->rela.idx != 0) | |
3864 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3865 | |
3866 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3867 | ||
3868 | /* sh_link of a reloc section is the section index of the symbol | |
3869 | table. sh_info is the section index of the section to which | |
3870 | the relocation entries apply. */ | |
d4730f92 | 3871 | if (d->rel.idx != 0) |
252b5132 | 3872 | { |
12bd6957 | 3873 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3874 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3875 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3876 | } |
d4730f92 | 3877 | if (d->rela.idx != 0) |
23bc299b | 3878 | { |
12bd6957 | 3879 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3880 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3881 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3882 | } |
252b5132 | 3883 | |
38ce5b11 L |
3884 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3885 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3886 | { | |
3887 | s = elf_linked_to_section (sec); | |
b71702f1 NC |
3888 | /* We can now have a NULL linked section pointer. |
3889 | This happens when the sh_link field is 0, which is done | |
3890 | when a linked to section is discarded but the linking | |
3891 | section has been retained for some reason. */ | |
38ce5b11 | 3892 | if (s) |
38ce5b11 | 3893 | { |
67411cbf AM |
3894 | /* Check discarded linkonce section. */ |
3895 | if (discarded_section (s)) | |
38ce5b11 | 3896 | { |
67411cbf AM |
3897 | asection *kept; |
3898 | _bfd_error_handler | |
3899 | /* xgettext:c-format */ | |
3900 | (_("%pB: sh_link of section `%pA' points to" | |
3901 | " discarded section `%pA' of `%pB'"), | |
3902 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3903 | /* Point to the kept section if it has the same | |
3904 | size as the discarded one. */ | |
3905 | kept = _bfd_elf_check_kept_section (s, link_info); | |
3906 | if (kept == NULL) | |
f2876037 | 3907 | { |
f2876037 | 3908 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3909 | return false; |
f2876037 | 3910 | } |
67411cbf AM |
3911 | s = kept; |
3912 | } | |
3913 | /* Handle objcopy. */ | |
3914 | else if (s->output_section == NULL) | |
3915 | { | |
3916 | _bfd_error_handler | |
3917 | /* xgettext:c-format */ | |
3918 | (_("%pB: sh_link of section `%pA' points to" | |
3919 | " removed section `%pA' of `%pB'"), | |
3920 | abfd, d->this_hdr.bfd_section, s, s->owner); | |
3921 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 3922 | return false; |
f2876037 | 3923 | } |
67411cbf | 3924 | s = s->output_section; |
ccd2ec6a L |
3925 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3926 | } | |
38ce5b11 L |
3927 | } |
3928 | ||
252b5132 RH |
3929 | switch (d->this_hdr.sh_type) |
3930 | { | |
3931 | case SHT_REL: | |
3932 | case SHT_RELA: | |
3933 | /* A reloc section which we are treating as a normal BFD | |
3934 | section. sh_link is the section index of the symbol | |
3935 | table. sh_info is the section index of the section to | |
3936 | which the relocation entries apply. We assume that an | |
3937 | allocated reloc section uses the dynamic symbol table. | |
3938 | FIXME: How can we be sure? */ | |
3939 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3940 | if (s != NULL) | |
3941 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3942 | ||
bce964aa | 3943 | s = elf_get_reloc_section (sec); |
252b5132 | 3944 | if (s != NULL) |
9ef5d938 L |
3945 | { |
3946 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3947 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3948 | } | |
252b5132 RH |
3949 | break; |
3950 | ||
3951 | case SHT_STRTAB: | |
3952 | /* We assume that a section named .stab*str is a stabs | |
3953 | string section. We look for a section with the same name | |
3954 | but without the trailing ``str'', and set its sh_link | |
3955 | field to point to this section. */ | |
08dedd66 | 3956 | if (startswith (sec->name, ".stab") |
252b5132 RH |
3957 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3958 | { | |
3959 | size_t len; | |
3960 | char *alc; | |
3961 | ||
3962 | len = strlen (sec->name); | |
a50b1753 | 3963 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3964 | if (alc == NULL) |
0a1b45a2 | 3965 | return false; |
d4c88bbb | 3966 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3967 | alc[len - 3] = '\0'; |
3968 | s = bfd_get_section_by_name (abfd, alc); | |
3969 | free (alc); | |
3970 | if (s != NULL) | |
3971 | { | |
3972 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3973 | ||
3974 | /* This is a .stab section. */ | |
34ca5531 | 3975 | elf_section_data (s)->this_hdr.sh_entsize = 12; |
252b5132 RH |
3976 | } |
3977 | } | |
3978 | break; | |
3979 | ||
3980 | case SHT_DYNAMIC: | |
3981 | case SHT_DYNSYM: | |
3982 | case SHT_GNU_verneed: | |
3983 | case SHT_GNU_verdef: | |
3984 | /* sh_link is the section header index of the string table | |
3985 | used for the dynamic entries, or the symbol table, or the | |
3986 | version strings. */ | |
3987 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3988 | if (s != NULL) | |
3989 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3990 | break; | |
3991 | ||
7f1204bb JJ |
3992 | case SHT_GNU_LIBLIST: |
3993 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3994 | list used for the dynamic entries, or the symbol table, or |
3995 | the version strings. */ | |
7f1204bb JJ |
3996 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3997 | ? ".dynstr" : ".gnu.libstr"); | |
3998 | if (s != NULL) | |
3999 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4000 | break; | |
4001 | ||
252b5132 | 4002 | case SHT_HASH: |
fdc90cb4 | 4003 | case SHT_GNU_HASH: |
252b5132 RH |
4004 | case SHT_GNU_versym: |
4005 | /* sh_link is the section header index of the symbol table | |
4006 | this hash table or version table is for. */ | |
4007 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4008 | if (s != NULL) | |
4009 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4010 | break; | |
dbb410c3 AM |
4011 | |
4012 | case SHT_GROUP: | |
12bd6957 | 4013 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4014 | } |
4015 | } | |
4016 | ||
3e19fb8f L |
4017 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4018 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4019 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4020 | ||
0a1b45a2 | 4021 | return true; |
252b5132 RH |
4022 | } |
4023 | ||
0a1b45a2 | 4024 | static bool |
217aa764 | 4025 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4026 | { |
4027 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4028 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4029 | if (bed->elf_backend_sym_is_global) |
4030 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4031 | |
e47bf690 | 4032 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4033 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4034 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4035 | } |
4036 | ||
76359541 TP |
4037 | /* Filter global symbols of ABFD to include in the import library. All |
4038 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4039 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4040 | the beginning of that array. | |
4041 | ||
4042 | Returns the number of symbols to keep. */ | |
4043 | ||
4044 | unsigned int | |
4045 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4046 | asymbol **syms, long symcount) | |
4047 | { | |
4048 | long src_count, dst_count = 0; | |
4049 | ||
4050 | for (src_count = 0; src_count < symcount; src_count++) | |
4051 | { | |
4052 | asymbol *sym = syms[src_count]; | |
4053 | char *name = (char *) bfd_asymbol_name (sym); | |
4054 | struct bfd_link_hash_entry *h; | |
4055 | ||
4056 | if (!sym_is_global (abfd, sym)) | |
4057 | continue; | |
4058 | ||
0a1b45a2 | 4059 | h = bfd_link_hash_lookup (info->hash, name, false, false, false); |
5df1bc57 AM |
4060 | if (h == NULL) |
4061 | continue; | |
76359541 TP |
4062 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4063 | continue; | |
76359541 TP |
4064 | if (h->linker_def || h->ldscript_def) |
4065 | continue; | |
4066 | ||
4067 | syms[dst_count++] = sym; | |
4068 | } | |
4069 | ||
4070 | syms[dst_count] = NULL; | |
4071 | ||
4072 | return dst_count; | |
4073 | } | |
4074 | ||
5372391b | 4075 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4076 | output, that are duplicates or there is no BFD section. */ |
5372391b | 4077 | |
0a1b45a2 | 4078 | static bool |
5372391b AM |
4079 | ignore_section_sym (bfd *abfd, asymbol *sym) |
4080 | { | |
c6d8cab4 L |
4081 | elf_symbol_type *type_ptr; |
4082 | ||
db0c309f | 4083 | if (sym == NULL) |
0a1b45a2 | 4084 | return false; |
db0c309f | 4085 | |
c6d8cab4 | 4086 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
0a1b45a2 | 4087 | return false; |
c6d8cab4 | 4088 | |
d1bcae83 L |
4089 | /* Ignore the section symbol if it isn't used. */ |
4090 | if ((sym->flags & BSF_SECTION_SYM_USED) == 0) | |
0a1b45a2 | 4091 | return true; |
d1bcae83 | 4092 | |
db0c309f | 4093 | if (sym->section == NULL) |
0a1b45a2 | 4094 | return true; |
db0c309f | 4095 | |
c1229f84 | 4096 | type_ptr = elf_symbol_from (sym); |
c6d8cab4 L |
4097 | return ((type_ptr != NULL |
4098 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4099 | && bfd_is_abs_section (sym->section)) | |
4100 | || !(sym->section->owner == abfd | |
db0c309f NC |
4101 | || (sym->section->output_section != NULL |
4102 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4103 | && sym->section->output_offset == 0) |
4104 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4105 | } |
4106 | ||
2633a79c AM |
4107 | /* Map symbol from it's internal number to the external number, moving |
4108 | all local symbols to be at the head of the list. */ | |
4109 | ||
0a1b45a2 | 4110 | static bool |
12bd6957 | 4111 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4112 | { |
dc810e39 | 4113 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4114 | asymbol **syms = bfd_get_outsymbols (abfd); |
4115 | asymbol **sect_syms; | |
dc810e39 AM |
4116 | unsigned int num_locals = 0; |
4117 | unsigned int num_globals = 0; | |
4118 | unsigned int num_locals2 = 0; | |
4119 | unsigned int num_globals2 = 0; | |
7292b3ac | 4120 | unsigned int max_index = 0; |
dc810e39 | 4121 | unsigned int idx; |
252b5132 RH |
4122 | asection *asect; |
4123 | asymbol **new_syms; | |
446f7ed5 | 4124 | size_t amt; |
252b5132 RH |
4125 | |
4126 | #ifdef DEBUG | |
4127 | fprintf (stderr, "elf_map_symbols\n"); | |
4128 | fflush (stderr); | |
4129 | #endif | |
4130 | ||
252b5132 RH |
4131 | for (asect = abfd->sections; asect; asect = asect->next) |
4132 | { | |
4133 | if (max_index < asect->index) | |
4134 | max_index = asect->index; | |
4135 | } | |
4136 | ||
4137 | max_index++; | |
446f7ed5 AM |
4138 | amt = max_index * sizeof (asymbol *); |
4139 | sect_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 | 4140 | if (sect_syms == NULL) |
0a1b45a2 | 4141 | return false; |
252b5132 | 4142 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4143 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4144 | |
079e9a2f AM |
4145 | /* Init sect_syms entries for any section symbols we have already |
4146 | decided to output. */ | |
252b5132 RH |
4147 | for (idx = 0; idx < symcount; idx++) |
4148 | { | |
dc810e39 | 4149 | asymbol *sym = syms[idx]; |
c044fabd | 4150 | |
252b5132 | 4151 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4152 | && sym->value == 0 |
2633a79c AM |
4153 | && !ignore_section_sym (abfd, sym) |
4154 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4155 | { |
5372391b | 4156 | asection *sec = sym->section; |
252b5132 | 4157 | |
5372391b AM |
4158 | if (sec->owner != abfd) |
4159 | sec = sec->output_section; | |
252b5132 | 4160 | |
5372391b | 4161 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4162 | } |
4163 | } | |
4164 | ||
252b5132 RH |
4165 | /* Classify all of the symbols. */ |
4166 | for (idx = 0; idx < symcount; idx++) | |
4167 | { | |
2633a79c | 4168 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4169 | num_globals++; |
2633a79c AM |
4170 | else if (!ignore_section_sym (abfd, syms[idx])) |
4171 | num_locals++; | |
252b5132 | 4172 | } |
079e9a2f | 4173 | |
5372391b | 4174 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4175 | sections will already have a section symbol in outsymbols, but |
4176 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4177 | at least in that case. */ | |
252b5132 RH |
4178 | for (asect = abfd->sections; asect; asect = asect->next) |
4179 | { | |
d1bcae83 L |
4180 | asymbol *sym = asect->symbol; |
4181 | /* Don't include ignored section symbols. */ | |
4182 | if (!ignore_section_sym (abfd, sym) | |
4183 | && sect_syms[asect->index] == NULL) | |
252b5132 | 4184 | { |
079e9a2f | 4185 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4186 | num_locals++; |
4187 | else | |
4188 | num_globals++; | |
252b5132 RH |
4189 | } |
4190 | } | |
4191 | ||
4192 | /* Now sort the symbols so the local symbols are first. */ | |
446f7ed5 AM |
4193 | amt = (num_locals + num_globals) * sizeof (asymbol *); |
4194 | new_syms = (asymbol **) bfd_alloc (abfd, amt); | |
252b5132 | 4195 | if (new_syms == NULL) |
0a1b45a2 | 4196 | return false; |
252b5132 RH |
4197 | |
4198 | for (idx = 0; idx < symcount; idx++) | |
4199 | { | |
4200 | asymbol *sym = syms[idx]; | |
dc810e39 | 4201 | unsigned int i; |
252b5132 | 4202 | |
2633a79c AM |
4203 | if (sym_is_global (abfd, sym)) |
4204 | i = num_locals + num_globals2++; | |
d1bcae83 | 4205 | /* Don't include ignored section symbols. */ |
2633a79c | 4206 | else if (!ignore_section_sym (abfd, sym)) |
252b5132 RH |
4207 | i = num_locals2++; |
4208 | else | |
2633a79c | 4209 | continue; |
252b5132 RH |
4210 | new_syms[i] = sym; |
4211 | sym->udata.i = i + 1; | |
4212 | } | |
4213 | for (asect = abfd->sections; asect; asect = asect->next) | |
4214 | { | |
d1bcae83 L |
4215 | asymbol *sym = asect->symbol; |
4216 | if (!ignore_section_sym (abfd, sym) | |
4217 | && sect_syms[asect->index] == NULL) | |
252b5132 | 4218 | { |
dc810e39 | 4219 | unsigned int i; |
252b5132 | 4220 | |
079e9a2f | 4221 | sect_syms[asect->index] = sym; |
252b5132 RH |
4222 | if (!sym_is_global (abfd, sym)) |
4223 | i = num_locals2++; | |
4224 | else | |
4225 | i = num_locals + num_globals2++; | |
4226 | new_syms[i] = sym; | |
4227 | sym->udata.i = i + 1; | |
4228 | } | |
4229 | } | |
4230 | ||
4231 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4232 | ||
12bd6957 | 4233 | *pnum_locals = num_locals; |
0a1b45a2 | 4234 | return true; |
252b5132 RH |
4235 | } |
4236 | ||
4237 | /* Align to the maximum file alignment that could be required for any | |
4238 | ELF data structure. */ | |
4239 | ||
268b6b39 | 4240 | static inline file_ptr |
217aa764 | 4241 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4242 | { |
4243 | return (off + align - 1) & ~(align - 1); | |
4244 | } | |
4245 | ||
4246 | /* Assign a file position to a section, optionally aligning to the | |
4247 | required section alignment. */ | |
4248 | ||
217aa764 AM |
4249 | file_ptr |
4250 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4251 | file_ptr offset, | |
0a1b45a2 | 4252 | bool align) |
252b5132 | 4253 | { |
72de5009 AM |
4254 | if (align && i_shdrp->sh_addralign > 1) |
4255 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4256 | i_shdrp->sh_offset = offset; |
4257 | if (i_shdrp->bfd_section != NULL) | |
4258 | i_shdrp->bfd_section->filepos = offset; | |
4259 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4260 | offset += i_shdrp->sh_size; | |
4261 | return offset; | |
4262 | } | |
4263 | ||
4264 | /* Compute the file positions we are going to put the sections at, and | |
4265 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4266 | is not NULL, this is being called by the ELF backend linker. */ | |
4267 | ||
0a1b45a2 | 4268 | bool |
217aa764 AM |
4269 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4270 | struct bfd_link_info *link_info) | |
252b5132 | 4271 | { |
9c5bfbb7 | 4272 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4273 | struct fake_section_arg fsargs; |
0a1b45a2 | 4274 | bool failed; |
ef10c3ac | 4275 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4276 | Elf_Internal_Shdr *shstrtab_hdr; |
0a1b45a2 | 4277 | bool need_symtab; |
252b5132 RH |
4278 | |
4279 | if (abfd->output_has_begun) | |
0a1b45a2 | 4280 | return true; |
252b5132 RH |
4281 | |
4282 | /* Do any elf backend specific processing first. */ | |
4283 | if (bed->elf_backend_begin_write_processing) | |
4284 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4285 | ||
ed7e9d0b | 4286 | if (!(*bed->elf_backend_init_file_header) (abfd, link_info)) |
0a1b45a2 | 4287 | return false; |
252b5132 | 4288 | |
0a1b45a2 | 4289 | fsargs.failed = false; |
d4730f92 BS |
4290 | fsargs.link_info = link_info; |
4291 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4292 | if (fsargs.failed) | |
0a1b45a2 | 4293 | return false; |
252b5132 | 4294 | |
da9f89d4 | 4295 | if (!assign_section_numbers (abfd, link_info)) |
0a1b45a2 | 4296 | return false; |
252b5132 RH |
4297 | |
4298 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4299 | need_symtab = (link_info == NULL |
4300 | && (bfd_get_symcount (abfd) > 0 | |
4301 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4302 | == HAS_RELOC))); | |
4303 | if (need_symtab) | |
252b5132 RH |
4304 | { |
4305 | /* Non-zero if doing a relocatable link. */ | |
4306 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4307 | ||
3d16b64e | 4308 | if (! swap_out_syms (abfd, &strtab, relocatable_p, link_info)) |
0a1b45a2 | 4309 | return false; |
252b5132 RH |
4310 | } |
4311 | ||
0a1b45a2 | 4312 | failed = false; |
1126897b | 4313 | if (link_info == NULL) |
dbb410c3 | 4314 | { |
1126897b | 4315 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4316 | if (failed) |
0a1b45a2 | 4317 | return false; |
dbb410c3 AM |
4318 | } |
4319 | ||
252b5132 | 4320 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
ed7e9d0b | 4321 | /* sh_name was set in init_file_header. */ |
252b5132 | 4322 | shstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 4323 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4324 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4325 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4326 | shstrtab_hdr->sh_entsize = 0; |
4327 | shstrtab_hdr->sh_link = 0; | |
4328 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4329 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4330 | shstrtab_hdr->sh_addralign = 1; |
4331 | ||
c84fca4d | 4332 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
0a1b45a2 | 4333 | return false; |
252b5132 | 4334 | |
3516e984 | 4335 | if (need_symtab) |
252b5132 RH |
4336 | { |
4337 | file_ptr off; | |
4338 | Elf_Internal_Shdr *hdr; | |
4339 | ||
12bd6957 | 4340 | off = elf_next_file_pos (abfd); |
252b5132 | 4341 | |
6a40cf0c | 4342 | hdr = & elf_symtab_hdr (abfd); |
0a1b45a2 | 4343 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 4344 | |
6a40cf0c NC |
4345 | if (elf_symtab_shndx_list (abfd) != NULL) |
4346 | { | |
4347 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4348 | if (hdr->sh_size != 0) | |
0a1b45a2 | 4349 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
6a40cf0c NC |
4350 | /* FIXME: What about other symtab_shndx sections in the list ? */ |
4351 | } | |
9ad5cbcf | 4352 | |
252b5132 | 4353 | hdr = &elf_tdata (abfd)->strtab_hdr; |
0a1b45a2 | 4354 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 4355 | |
12bd6957 | 4356 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4357 | |
4358 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4359 | out. */ |
252b5132 | 4360 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4361 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
0a1b45a2 | 4362 | return false; |
ef10c3ac | 4363 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4364 | } |
4365 | ||
0a1b45a2 | 4366 | abfd->output_has_begun = true; |
252b5132 | 4367 | |
0a1b45a2 | 4368 | return true; |
252b5132 RH |
4369 | } |
4370 | ||
8ded5a0f AM |
4371 | /* Make an initial estimate of the size of the program header. If we |
4372 | get the number wrong here, we'll redo section placement. */ | |
4373 | ||
4374 | static bfd_size_type | |
4375 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4376 | { | |
4377 | size_t segs; | |
4378 | asection *s; | |
2b05f1b7 | 4379 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4380 | |
4381 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4382 | and one for data. */ | |
4383 | segs = 2; | |
4384 | ||
4385 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4386 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4387 | { |
4388 | /* If we have a loadable interpreter section, we need a | |
4389 | PT_INTERP segment. In this case, assume we also need a | |
4390 | PT_PHDR segment, although that may not be true for all | |
4391 | targets. */ | |
e9a38e0f | 4392 | segs += 2; |
8ded5a0f AM |
4393 | } |
4394 | ||
4395 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4396 | { | |
4397 | /* We need a PT_DYNAMIC segment. */ | |
4398 | ++segs; | |
f210dcff | 4399 | } |
08a40648 | 4400 | |
ceae84aa | 4401 | if (info != NULL && info->relro) |
f210dcff L |
4402 | { |
4403 | /* We need a PT_GNU_RELRO segment. */ | |
4404 | ++segs; | |
8ded5a0f AM |
4405 | } |
4406 | ||
12bd6957 | 4407 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4408 | { |
4409 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4410 | ++segs; | |
4411 | } | |
4412 | ||
12bd6957 | 4413 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4414 | { |
2b05f1b7 L |
4415 | /* We need a PT_GNU_STACK segment. */ |
4416 | ++segs; | |
4417 | } | |
94b11780 | 4418 | |
0a59decb L |
4419 | s = bfd_get_section_by_name (abfd, |
4420 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4421 | if (s != NULL && s->size != 0) | |
4422 | { | |
4423 | /* We need a PT_GNU_PROPERTY segment. */ | |
4424 | ++segs; | |
4425 | } | |
4426 | ||
2b05f1b7 L |
4427 | for (s = abfd->sections; s != NULL; s = s->next) |
4428 | { | |
8ded5a0f | 4429 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4430 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4431 | { |
23e463ed | 4432 | unsigned int alignment_power; |
8ded5a0f AM |
4433 | /* We need a PT_NOTE segment. */ |
4434 | ++segs; | |
23e463ed L |
4435 | /* Try to create just one PT_NOTE segment for all adjacent |
4436 | loadable SHT_NOTE sections. gABI requires that within a | |
4437 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4438 | each note should have the same alignment. So we check | |
4439 | whether the sections are correctly aligned. */ | |
4440 | alignment_power = s->alignment_power; | |
4441 | while (s->next != NULL | |
4442 | && s->next->alignment_power == alignment_power | |
4443 | && (s->next->flags & SEC_LOAD) != 0 | |
4444 | && elf_section_type (s->next) == SHT_NOTE) | |
4445 | s = s->next; | |
8ded5a0f AM |
4446 | } |
4447 | } | |
4448 | ||
4449 | for (s = abfd->sections; s != NULL; s = s->next) | |
4450 | { | |
4451 | if (s->flags & SEC_THREAD_LOCAL) | |
4452 | { | |
4453 | /* We need a PT_TLS segment. */ | |
4454 | ++segs; | |
4455 | break; | |
4456 | } | |
4457 | } | |
4458 | ||
2b05f1b7 | 4459 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4460 | |
df3a023b AM |
4461 | if ((abfd->flags & D_PAGED) != 0 |
4462 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4463 | { | |
4464 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
c410035d AM |
4465 | bfd_vma commonpagesize; |
4466 | unsigned int page_align_power; | |
4467 | ||
4468 | if (info != NULL) | |
4469 | commonpagesize = info->commonpagesize; | |
4470 | else | |
4471 | commonpagesize = bed->commonpagesize; | |
4472 | page_align_power = bfd_log2 (commonpagesize); | |
df3a023b AM |
4473 | for (s = abfd->sections; s != NULL; s = s->next) |
4474 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4475 | { | |
4476 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4477 | { | |
4478 | _bfd_error_handler | |
4479 | /* xgettext:c-format */ | |
4480 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4481 | "sh_info field: %d"), | |
4482 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4483 | continue; | |
4484 | } | |
4485 | /* Align mbind section to page size. */ | |
4486 | if (s->alignment_power < page_align_power) | |
4487 | s->alignment_power = page_align_power; | |
4488 | segs ++; | |
4489 | } | |
4490 | } | |
4491 | ||
4492 | /* Let the backend count up any program headers it might need. */ | |
4493 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4494 | { |
4495 | int a; | |
4496 | ||
4497 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4498 | if (a == -1) | |
4499 | abort (); | |
4500 | segs += a; | |
4501 | } | |
4502 | ||
4503 | return segs * bed->s->sizeof_phdr; | |
4504 | } | |
4505 | ||
2ea37f1c NC |
4506 | /* Find the segment that contains the output_section of section. */ |
4507 | ||
4508 | Elf_Internal_Phdr * | |
4509 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4510 | { | |
4511 | struct elf_segment_map *m; | |
4512 | Elf_Internal_Phdr *p; | |
4513 | ||
12bd6957 | 4514 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4515 | m != NULL; |
4516 | m = m->next, p++) | |
4517 | { | |
4518 | int i; | |
4519 | ||
4520 | for (i = m->count - 1; i >= 0; i--) | |
4521 | if (m->sections[i] == section) | |
4522 | return p; | |
4523 | } | |
4524 | ||
4525 | return NULL; | |
4526 | } | |
4527 | ||
252b5132 RH |
4528 | /* Create a mapping from a set of sections to a program segment. */ |
4529 | ||
217aa764 AM |
4530 | static struct elf_segment_map * |
4531 | make_mapping (bfd *abfd, | |
4532 | asection **sections, | |
4533 | unsigned int from, | |
4534 | unsigned int to, | |
0a1b45a2 | 4535 | bool phdr) |
252b5132 RH |
4536 | { |
4537 | struct elf_segment_map *m; | |
4538 | unsigned int i; | |
4539 | asection **hdrpp; | |
986f0783 | 4540 | size_t amt; |
252b5132 | 4541 | |
00bee008 AM |
4542 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4543 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4544 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4545 | if (m == NULL) |
4546 | return NULL; | |
4547 | m->next = NULL; | |
4548 | m->p_type = PT_LOAD; | |
4549 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4550 | m->sections[i - from] = *hdrpp; | |
4551 | m->count = to - from; | |
4552 | ||
4553 | if (from == 0 && phdr) | |
4554 | { | |
4555 | /* Include the headers in the first PT_LOAD segment. */ | |
4556 | m->includes_filehdr = 1; | |
4557 | m->includes_phdrs = 1; | |
4558 | } | |
4559 | ||
4560 | return m; | |
4561 | } | |
4562 | ||
229fcec5 MM |
4563 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4564 | on failure. */ | |
4565 | ||
4566 | struct elf_segment_map * | |
4567 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4568 | { | |
4569 | struct elf_segment_map *m; | |
4570 | ||
a50b1753 | 4571 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4572 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4573 | if (m == NULL) |
4574 | return NULL; | |
4575 | m->next = NULL; | |
4576 | m->p_type = PT_DYNAMIC; | |
4577 | m->count = 1; | |
4578 | m->sections[0] = dynsec; | |
08a40648 | 4579 | |
229fcec5 MM |
4580 | return m; |
4581 | } | |
4582 | ||
8ded5a0f | 4583 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4584 | |
0a1b45a2 | 4585 | static bool |
3dea8fca AM |
4586 | elf_modify_segment_map (bfd *abfd, |
4587 | struct bfd_link_info *info, | |
0a1b45a2 | 4588 | bool remove_empty_load) |
252b5132 | 4589 | { |
252e386e | 4590 | struct elf_segment_map **m; |
8ded5a0f | 4591 | const struct elf_backend_data *bed; |
252b5132 | 4592 | |
8ded5a0f AM |
4593 | /* The placement algorithm assumes that non allocated sections are |
4594 | not in PT_LOAD segments. We ensure this here by removing such | |
4595 | sections from the segment map. We also remove excluded | |
252e386e AM |
4596 | sections. Finally, any PT_LOAD segment without sections is |
4597 | removed. */ | |
12bd6957 | 4598 | m = &elf_seg_map (abfd); |
252e386e | 4599 | while (*m) |
8ded5a0f AM |
4600 | { |
4601 | unsigned int i, new_count; | |
252b5132 | 4602 | |
252e386e | 4603 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4604 | { |
252e386e AM |
4605 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4606 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4607 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4608 | { |
252e386e AM |
4609 | (*m)->sections[new_count] = (*m)->sections[i]; |
4610 | new_count++; | |
8ded5a0f AM |
4611 | } |
4612 | } | |
252e386e | 4613 | (*m)->count = new_count; |
252b5132 | 4614 | |
1a9ccd70 NC |
4615 | if (remove_empty_load |
4616 | && (*m)->p_type == PT_LOAD | |
4617 | && (*m)->count == 0 | |
4618 | && !(*m)->includes_phdrs) | |
252e386e AM |
4619 | *m = (*m)->next; |
4620 | else | |
4621 | m = &(*m)->next; | |
8ded5a0f | 4622 | } |
252b5132 | 4623 | |
8ded5a0f AM |
4624 | bed = get_elf_backend_data (abfd); |
4625 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4626 | { |
252e386e | 4627 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
0a1b45a2 | 4628 | return false; |
252b5132 | 4629 | } |
252b5132 | 4630 | |
0a1b45a2 | 4631 | return true; |
8ded5a0f | 4632 | } |
252b5132 | 4633 | |
dbc88fc1 AM |
4634 | #define IS_TBSS(s) \ |
4635 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4636 | ||
8ded5a0f | 4637 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4638 | |
0a1b45a2 | 4639 | bool |
8ded5a0f AM |
4640 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) |
4641 | { | |
4642 | unsigned int count; | |
4643 | struct elf_segment_map *m; | |
4644 | asection **sections = NULL; | |
4645 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
0a1b45a2 | 4646 | bool no_user_phdrs; |
252b5132 | 4647 | |
12bd6957 | 4648 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4649 | |
4650 | if (info != NULL) | |
4651 | info->user_phdrs = !no_user_phdrs; | |
4652 | ||
3dea8fca | 4653 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4654 | { |
8ded5a0f AM |
4655 | asection *s; |
4656 | unsigned int i; | |
4657 | struct elf_segment_map *mfirst; | |
4658 | struct elf_segment_map **pm; | |
4659 | asection *last_hdr; | |
4660 | bfd_vma last_size; | |
00bee008 | 4661 | unsigned int hdr_index; |
8ded5a0f AM |
4662 | bfd_vma maxpagesize; |
4663 | asection **hdrpp; | |
0a1b45a2 AM |
4664 | bool phdr_in_segment; |
4665 | bool writable; | |
4666 | bool executable; | |
446f7ed5 | 4667 | unsigned int tls_count = 0; |
8ded5a0f | 4668 | asection *first_tls = NULL; |
a91e1603 | 4669 | asection *first_mbind = NULL; |
8ded5a0f | 4670 | asection *dynsec, *eh_frame_hdr; |
446f7ed5 | 4671 | size_t amt; |
66631823 CE |
4672 | bfd_vma addr_mask, wrap_to = 0; /* Bytes. */ |
4673 | bfd_size_type phdr_size; /* Octets/bytes. */ | |
502794d4 | 4674 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 4675 | |
8ded5a0f | 4676 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4677 | |
446f7ed5 AM |
4678 | amt = bfd_count_sections (abfd) * sizeof (asection *); |
4679 | sections = (asection **) bfd_malloc (amt); | |
8ded5a0f | 4680 | if (sections == NULL) |
252b5132 | 4681 | goto error_return; |
252b5132 | 4682 | |
8d06853e AM |
4683 | /* Calculate top address, avoiding undefined behaviour of shift |
4684 | left operator when shift count is equal to size of type | |
4685 | being shifted. */ | |
4686 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4687 | addr_mask = (addr_mask << 1) + 1; | |
4688 | ||
8ded5a0f AM |
4689 | i = 0; |
4690 | for (s = abfd->sections; s != NULL; s = s->next) | |
4691 | { | |
4692 | if ((s->flags & SEC_ALLOC) != 0) | |
4693 | { | |
48db3297 AM |
4694 | /* target_index is unused until bfd_elf_final_link |
4695 | starts output of section symbols. Use it to make | |
4696 | qsort stable. */ | |
4697 | s->target_index = i; | |
8ded5a0f AM |
4698 | sections[i] = s; |
4699 | ++i; | |
8d06853e | 4700 | /* A wrapping section potentially clashes with header. */ |
66631823 CE |
4701 | if (((s->lma + s->size / opb) & addr_mask) < (s->lma & addr_mask)) |
4702 | wrap_to = (s->lma + s->size / opb) & addr_mask; | |
8ded5a0f AM |
4703 | } |
4704 | } | |
4705 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4706 | count = i; | |
252b5132 | 4707 | |
8ded5a0f | 4708 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4709 | |
64029e93 AM |
4710 | phdr_size = elf_program_header_size (abfd); |
4711 | if (phdr_size == (bfd_size_type) -1) | |
4712 | phdr_size = get_program_header_size (abfd, info); | |
4713 | phdr_size += bed->s->sizeof_ehdr; | |
502794d4 CE |
4714 | /* phdr_size is compared to LMA values which are in bytes. */ |
4715 | phdr_size /= opb; | |
c410035d AM |
4716 | if (info != NULL) |
4717 | maxpagesize = info->maxpagesize; | |
4718 | else | |
4719 | maxpagesize = bed->maxpagesize; | |
64029e93 AM |
4720 | if (maxpagesize == 0) |
4721 | maxpagesize = 1; | |
4722 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4723 | if (count != 0 | |
4724 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4725 | >= (phdr_size & (maxpagesize - 1)))) | |
4726 | /* For compatibility with old scripts that may not be using | |
4727 | SIZEOF_HEADERS, add headers when it looks like space has | |
4728 | been left for them. */ | |
0a1b45a2 | 4729 | phdr_in_segment = true; |
252b5132 | 4730 | |
64029e93 | 4731 | /* Build the mapping. */ |
8ded5a0f AM |
4732 | mfirst = NULL; |
4733 | pm = &mfirst; | |
252b5132 | 4734 | |
8ded5a0f AM |
4735 | /* If we have a .interp section, then create a PT_PHDR segment for |
4736 | the program headers and a PT_INTERP segment for the .interp | |
4737 | section. */ | |
4738 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4739 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4740 | { |
4741 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4742 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4743 | if (m == NULL) |
4744 | goto error_return; | |
4745 | m->next = NULL; | |
4746 | m->p_type = PT_PHDR; | |
f882209d | 4747 | m->p_flags = PF_R; |
8ded5a0f AM |
4748 | m->p_flags_valid = 1; |
4749 | m->includes_phdrs = 1; | |
0a1b45a2 | 4750 | phdr_in_segment = true; |
8ded5a0f AM |
4751 | *pm = m; |
4752 | pm = &m->next; | |
252b5132 | 4753 | |
8ded5a0f | 4754 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4755 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4756 | if (m == NULL) |
4757 | goto error_return; | |
4758 | m->next = NULL; | |
4759 | m->p_type = PT_INTERP; | |
4760 | m->count = 1; | |
4761 | m->sections[0] = s; | |
4762 | ||
4763 | *pm = m; | |
4764 | pm = &m->next; | |
252b5132 | 4765 | } |
8ded5a0f AM |
4766 | |
4767 | /* Look through the sections. We put sections in the same program | |
4768 | segment when the start of the second section can be placed within | |
4769 | a few bytes of the end of the first section. */ | |
4770 | last_hdr = NULL; | |
4771 | last_size = 0; | |
00bee008 | 4772 | hdr_index = 0; |
0a1b45a2 AM |
4773 | writable = false; |
4774 | executable = false; | |
8ded5a0f AM |
4775 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4776 | if (dynsec != NULL | |
4777 | && (dynsec->flags & SEC_LOAD) == 0) | |
4778 | dynsec = NULL; | |
4779 | ||
64029e93 | 4780 | if ((abfd->flags & D_PAGED) == 0) |
0a1b45a2 | 4781 | phdr_in_segment = false; |
64029e93 | 4782 | |
8ded5a0f AM |
4783 | /* Deal with -Ttext or something similar such that the first section |
4784 | is not adjacent to the program headers. This is an | |
4785 | approximation, since at this point we don't know exactly how many | |
4786 | program headers we will need. */ | |
64029e93 | 4787 | if (phdr_in_segment && count > 0) |
252b5132 | 4788 | { |
66631823 | 4789 | bfd_vma phdr_lma; /* Bytes. */ |
0a1b45a2 | 4790 | bool separate_phdr = false; |
64029e93 AM |
4791 | |
4792 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4793 | if (info != NULL | |
4794 | && info->separate_code | |
4795 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4796 | { |
64029e93 AM |
4797 | /* If data sections should be separate from code and |
4798 | thus not executable, and the first section is | |
4799 | executable then put the file and program headers in | |
4800 | their own PT_LOAD. */ | |
0a1b45a2 | 4801 | separate_phdr = true; |
64029e93 AM |
4802 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) |
4803 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4804 | { | |
4805 | /* The file and program headers are currently on the | |
4806 | same page as the first section. Put them on the | |
4807 | previous page if we can. */ | |
4808 | if (phdr_lma >= maxpagesize) | |
4809 | phdr_lma -= maxpagesize; | |
4810 | else | |
0a1b45a2 | 4811 | separate_phdr = false; |
64029e93 AM |
4812 | } |
4813 | } | |
4814 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4815 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4816 | /* If file and program headers would be placed at the end | |
4817 | of memory then it's probably better to omit them. */ | |
0a1b45a2 | 4818 | phdr_in_segment = false; |
64029e93 AM |
4819 | else if (phdr_lma < wrap_to) |
4820 | /* If a section wraps around to where we'll be placing | |
4821 | file and program headers, then the headers will be | |
4822 | overwritten. */ | |
0a1b45a2 | 4823 | phdr_in_segment = false; |
64029e93 AM |
4824 | else if (separate_phdr) |
4825 | { | |
4826 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4827 | if (m == NULL) | |
4828 | goto error_return; | |
66631823 | 4829 | m->p_paddr = phdr_lma * opb; |
64029e93 AM |
4830 | m->p_vaddr_offset |
4831 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4832 | m->p_paddr_valid = 1; | |
4833 | *pm = m; | |
4834 | pm = &m->next; | |
0a1b45a2 | 4835 | phdr_in_segment = false; |
1a9ccd70 | 4836 | } |
252b5132 RH |
4837 | } |
4838 | ||
8ded5a0f | 4839 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4840 | { |
8ded5a0f | 4841 | asection *hdr; |
0a1b45a2 | 4842 | bool new_segment; |
8ded5a0f AM |
4843 | |
4844 | hdr = *hdrpp; | |
4845 | ||
4846 | /* See if this section and the last one will fit in the same | |
4847 | segment. */ | |
4848 | ||
4849 | if (last_hdr == NULL) | |
4850 | { | |
4851 | /* If we don't have a segment yet, then we don't need a new | |
4852 | one (we build the last one after this loop). */ | |
0a1b45a2 | 4853 | new_segment = false; |
8ded5a0f AM |
4854 | } |
4855 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4856 | { | |
4857 | /* If this section has a different relation between the | |
4858 | virtual address and the load address, then we need a new | |
4859 | segment. */ | |
0a1b45a2 | 4860 | new_segment = true; |
8ded5a0f | 4861 | } |
b5599592 AM |
4862 | else if (hdr->lma < last_hdr->lma + last_size |
4863 | || last_hdr->lma + last_size < last_hdr->lma) | |
4864 | { | |
4865 | /* If this section has a load address that makes it overlap | |
4866 | the previous section, then we need a new segment. */ | |
0a1b45a2 | 4867 | new_segment = true; |
b5599592 | 4868 | } |
76cb3a89 AM |
4869 | else if ((abfd->flags & D_PAGED) != 0 |
4870 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4871 | == (hdr->lma & -maxpagesize))) | |
4872 | { | |
4873 | /* If we are demand paged then we can't map two disk | |
4874 | pages onto the same memory page. */ | |
0a1b45a2 | 4875 | new_segment = false; |
76cb3a89 | 4876 | } |
39948a60 NC |
4877 | /* In the next test we have to be careful when last_hdr->lma is close |
4878 | to the end of the address space. If the aligned address wraps | |
4879 | around to the start of the address space, then there are no more | |
4880 | pages left in memory and it is OK to assume that the current | |
4881 | section can be included in the current segment. */ | |
76cb3a89 AM |
4882 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4883 | + maxpagesize > last_hdr->lma) | |
4884 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4885 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4886 | { |
4887 | /* If putting this section in this segment would force us to | |
4888 | skip a page in the segment, then we need a new segment. */ | |
0a1b45a2 | 4889 | new_segment = true; |
8ded5a0f AM |
4890 | } |
4891 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4892 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4893 | { |
e5654c0f AM |
4894 | /* We don't want to put a loaded section after a |
4895 | nonloaded (ie. bss style) section in the same segment | |
4896 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4897 | Consider .tbss sections as loaded for this purpose. */ |
0a1b45a2 | 4898 | new_segment = true; |
8ded5a0f AM |
4899 | } |
4900 | else if ((abfd->flags & D_PAGED) == 0) | |
4901 | { | |
4902 | /* If the file is not demand paged, which means that we | |
4903 | don't require the sections to be correctly aligned in the | |
4904 | file, then there is no other reason for a new segment. */ | |
0a1b45a2 | 4905 | new_segment = false; |
8ded5a0f | 4906 | } |
2888249f L |
4907 | else if (info != NULL |
4908 | && info->separate_code | |
4909 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4910 | { | |
0a1b45a2 | 4911 | new_segment = true; |
2888249f | 4912 | } |
8ded5a0f | 4913 | else if (! writable |
76cb3a89 | 4914 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4915 | { |
4916 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4917 | segment. */ |
0a1b45a2 | 4918 | new_segment = true; |
8ded5a0f AM |
4919 | } |
4920 | else | |
4921 | { | |
4922 | /* Otherwise, we can use the same segment. */ | |
0a1b45a2 | 4923 | new_segment = false; |
8ded5a0f AM |
4924 | } |
4925 | ||
2889e75b | 4926 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4927 | if (last_hdr != NULL |
4928 | && info != NULL | |
4929 | && info->callbacks->override_segment_assignment != NULL) | |
4930 | new_segment | |
4931 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4932 | last_hdr, | |
4933 | new_segment); | |
2889e75b | 4934 | |
8ded5a0f AM |
4935 | if (! new_segment) |
4936 | { | |
4937 | if ((hdr->flags & SEC_READONLY) == 0) | |
0a1b45a2 | 4938 | writable = true; |
2888249f | 4939 | if ((hdr->flags & SEC_CODE) != 0) |
0a1b45a2 | 4940 | executable = true; |
8ded5a0f AM |
4941 | last_hdr = hdr; |
4942 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4943 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
8ded5a0f AM |
4944 | continue; |
4945 | } | |
4946 | ||
4947 | /* We need a new program segment. We must create a new program | |
00bee008 | 4948 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4949 | |
00bee008 | 4950 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4951 | if (m == NULL) |
4952 | goto error_return; | |
4953 | ||
4954 | *pm = m; | |
4955 | pm = &m->next; | |
4956 | ||
252b5132 | 4957 | if ((hdr->flags & SEC_READONLY) == 0) |
0a1b45a2 | 4958 | writable = true; |
8ded5a0f | 4959 | else |
0a1b45a2 | 4960 | writable = false; |
8ded5a0f | 4961 | |
2888249f | 4962 | if ((hdr->flags & SEC_CODE) == 0) |
0a1b45a2 | 4963 | executable = false; |
2888249f | 4964 | else |
0a1b45a2 | 4965 | executable = true; |
2888249f | 4966 | |
baaff79e JJ |
4967 | last_hdr = hdr; |
4968 | /* .tbss sections effectively have zero size. */ | |
502794d4 | 4969 | last_size = (!IS_TBSS (hdr) ? hdr->size : 0) / opb; |
00bee008 | 4970 | hdr_index = i; |
0a1b45a2 | 4971 | phdr_in_segment = false; |
252b5132 RH |
4972 | } |
4973 | ||
86b2281f AM |
4974 | /* Create a final PT_LOAD program segment, but not if it's just |
4975 | for .tbss. */ | |
4976 | if (last_hdr != NULL | |
00bee008 | 4977 | && (i - hdr_index != 1 |
dbc88fc1 | 4978 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4979 | { |
00bee008 | 4980 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4981 | if (m == NULL) |
4982 | goto error_return; | |
252b5132 | 4983 | |
8ded5a0f AM |
4984 | *pm = m; |
4985 | pm = &m->next; | |
4986 | } | |
252b5132 | 4987 | |
8ded5a0f AM |
4988 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4989 | if (dynsec != NULL) | |
4990 | { | |
4991 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4992 | if (m == NULL) | |
4993 | goto error_return; | |
4994 | *pm = m; | |
4995 | pm = &m->next; | |
4996 | } | |
252b5132 | 4997 | |
23e463ed | 4998 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
4999 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
5000 | because if we link together nonloadable .note sections and | |
5001 | loadable .note sections, we will generate two .note sections | |
23e463ed | 5002 | in the output file. */ |
8ded5a0f AM |
5003 | for (s = abfd->sections; s != NULL; s = s->next) |
5004 | { | |
5005 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 5006 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 5007 | { |
1c5265b5 | 5008 | asection *s2; |
23e463ed | 5009 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5010 | |
5011 | count = 1; | |
23e463ed L |
5012 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5013 | { | |
5014 | if (s2->next->alignment_power == alignment_power | |
5015 | && (s2->next->flags & SEC_LOAD) != 0 | |
5016 | && elf_section_type (s2->next) == SHT_NOTE | |
66631823 | 5017 | && align_power (s2->lma + s2->size / opb, |
23e463ed L |
5018 | alignment_power) |
5019 | == s2->next->lma) | |
5020 | count++; | |
5021 | else | |
5022 | break; | |
5023 | } | |
00bee008 AM |
5024 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5025 | amt += count * sizeof (asection *); | |
a50b1753 | 5026 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5027 | if (m == NULL) |
5028 | goto error_return; | |
5029 | m->next = NULL; | |
5030 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5031 | m->count = count; |
5032 | while (count > 1) | |
5033 | { | |
5034 | m->sections[m->count - count--] = s; | |
5035 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5036 | s = s->next; | |
5037 | } | |
5038 | m->sections[m->count - 1] = s; | |
5039 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5040 | *pm = m; |
5041 | pm = &m->next; | |
5042 | } | |
5043 | if (s->flags & SEC_THREAD_LOCAL) | |
5044 | { | |
5045 | if (! tls_count) | |
5046 | first_tls = s; | |
5047 | tls_count++; | |
5048 | } | |
a91e1603 L |
5049 | if (first_mbind == NULL |
5050 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5051 | first_mbind = s; | |
8ded5a0f | 5052 | } |
252b5132 | 5053 | |
8ded5a0f AM |
5054 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5055 | if (tls_count > 0) | |
5056 | { | |
00bee008 AM |
5057 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5058 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5059 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5060 | if (m == NULL) |
5061 | goto error_return; | |
5062 | m->next = NULL; | |
5063 | m->p_type = PT_TLS; | |
5064 | m->count = tls_count; | |
5065 | /* Mandated PF_R. */ | |
5066 | m->p_flags = PF_R; | |
5067 | m->p_flags_valid = 1; | |
d923cae0 | 5068 | s = first_tls; |
446f7ed5 | 5069 | for (i = 0; i < tls_count; ++i) |
8ded5a0f | 5070 | { |
d923cae0 L |
5071 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5072 | { | |
5073 | _bfd_error_handler | |
871b3ab2 | 5074 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5075 | s = first_tls; |
5076 | i = 0; | |
446f7ed5 | 5077 | while (i < tls_count) |
d923cae0 L |
5078 | { |
5079 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5080 | { | |
871b3ab2 | 5081 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5082 | i++; |
5083 | } | |
5084 | else | |
871b3ab2 | 5085 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5086 | s = s->next; |
5087 | } | |
5088 | bfd_set_error (bfd_error_bad_value); | |
5089 | goto error_return; | |
5090 | } | |
5091 | m->sections[i] = s; | |
5092 | s = s->next; | |
8ded5a0f | 5093 | } |
252b5132 | 5094 | |
8ded5a0f AM |
5095 | *pm = m; |
5096 | pm = &m->next; | |
5097 | } | |
252b5132 | 5098 | |
df3a023b AM |
5099 | if (first_mbind |
5100 | && (abfd->flags & D_PAGED) != 0 | |
5101 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5102 | for (s = first_mbind; s != NULL; s = s->next) |
5103 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5104 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5105 | { |
5106 | /* Mandated PF_R. */ | |
5107 | unsigned long p_flags = PF_R; | |
5108 | if ((s->flags & SEC_READONLY) == 0) | |
5109 | p_flags |= PF_W; | |
5110 | if ((s->flags & SEC_CODE) != 0) | |
5111 | p_flags |= PF_X; | |
5112 | ||
5113 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5114 | m = bfd_zalloc (abfd, amt); | |
5115 | if (m == NULL) | |
5116 | goto error_return; | |
5117 | m->next = NULL; | |
5118 | m->p_type = (PT_GNU_MBIND_LO | |
5119 | + elf_section_data (s)->this_hdr.sh_info); | |
5120 | m->count = 1; | |
5121 | m->p_flags_valid = 1; | |
5122 | m->sections[0] = s; | |
5123 | m->p_flags = p_flags; | |
5124 | ||
5125 | *pm = m; | |
5126 | pm = &m->next; | |
5127 | } | |
5128 | ||
0a59decb L |
5129 | s = bfd_get_section_by_name (abfd, |
5130 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5131 | if (s != NULL && s->size != 0) | |
5132 | { | |
5133 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5134 | m = bfd_zalloc (abfd, amt); | |
5135 | if (m == NULL) | |
5136 | goto error_return; | |
5137 | m->next = NULL; | |
5138 | m->p_type = PT_GNU_PROPERTY; | |
5139 | m->count = 1; | |
5140 | m->p_flags_valid = 1; | |
5141 | m->sections[0] = s; | |
5142 | m->p_flags = PF_R; | |
5143 | *pm = m; | |
5144 | pm = &m->next; | |
5145 | } | |
5146 | ||
8ded5a0f AM |
5147 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5148 | segment. */ | |
12bd6957 | 5149 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5150 | if (eh_frame_hdr != NULL |
5151 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5152 | { |
dc810e39 | 5153 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5154 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5155 | if (m == NULL) |
5156 | goto error_return; | |
5157 | m->next = NULL; | |
8ded5a0f | 5158 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5159 | m->count = 1; |
8ded5a0f | 5160 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5161 | |
5162 | *pm = m; | |
5163 | pm = &m->next; | |
5164 | } | |
13ae64f3 | 5165 | |
12bd6957 | 5166 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5167 | { |
8ded5a0f | 5168 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5169 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5170 | if (m == NULL) |
5171 | goto error_return; | |
5172 | m->next = NULL; | |
2b05f1b7 | 5173 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5174 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5175 | m->p_align = bed->stack_align; |
8ded5a0f | 5176 | m->p_flags_valid = 1; |
04c3a755 NS |
5177 | m->p_align_valid = m->p_align != 0; |
5178 | if (info->stacksize > 0) | |
5179 | { | |
5180 | m->p_size = info->stacksize; | |
5181 | m->p_size_valid = 1; | |
5182 | } | |
252b5132 | 5183 | |
8ded5a0f AM |
5184 | *pm = m; |
5185 | pm = &m->next; | |
5186 | } | |
65765700 | 5187 | |
ceae84aa | 5188 | if (info != NULL && info->relro) |
8ded5a0f | 5189 | { |
f210dcff L |
5190 | for (m = mfirst; m != NULL; m = m->next) |
5191 | { | |
3832a4d8 AM |
5192 | if (m->p_type == PT_LOAD |
5193 | && m->count != 0 | |
5194 | && m->sections[0]->vma >= info->relro_start | |
5195 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5196 | { |
3832a4d8 AM |
5197 | i = m->count; |
5198 | while (--i != (unsigned) -1) | |
ec2e748a NC |
5199 | { |
5200 | if (m->sections[i]->size > 0 | |
5201 | && (m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5202 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5203 | break; | |
5204 | } | |
3832a4d8 | 5205 | |
43a8475c | 5206 | if (i != (unsigned) -1) |
f210dcff L |
5207 | break; |
5208 | } | |
be01b344 | 5209 | } |
f210dcff L |
5210 | |
5211 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5212 | if (m != NULL) | |
5213 | { | |
5214 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5215 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5216 | if (m == NULL) |
5217 | goto error_return; | |
5218 | m->next = NULL; | |
5219 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5220 | *pm = m; |
5221 | pm = &m->next; | |
5222 | } | |
8ded5a0f | 5223 | } |
9ee5e499 | 5224 | |
8ded5a0f | 5225 | free (sections); |
12bd6957 | 5226 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5227 | } |
5228 | ||
3dea8fca | 5229 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
0a1b45a2 | 5230 | return false; |
8c37241b | 5231 | |
12bd6957 | 5232 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5233 | ++count; |
12bd6957 | 5234 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5235 | |
0a1b45a2 | 5236 | return true; |
252b5132 RH |
5237 | |
5238 | error_return: | |
c9594989 | 5239 | free (sections); |
0a1b45a2 | 5240 | return false; |
252b5132 RH |
5241 | } |
5242 | ||
5243 | /* Sort sections by address. */ | |
5244 | ||
5245 | static int | |
217aa764 | 5246 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5247 | { |
5248 | const asection *sec1 = *(const asection **) arg1; | |
5249 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5250 | bfd_size_type size1, size2; |
252b5132 RH |
5251 | |
5252 | /* Sort by LMA first, since this is the address used to | |
5253 | place the section into a segment. */ | |
5254 | if (sec1->lma < sec2->lma) | |
5255 | return -1; | |
5256 | else if (sec1->lma > sec2->lma) | |
5257 | return 1; | |
5258 | ||
5259 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5260 | the same, and this will do nothing. */ | |
5261 | if (sec1->vma < sec2->vma) | |
5262 | return -1; | |
5263 | else if (sec1->vma > sec2->vma) | |
5264 | return 1; | |
5265 | ||
5266 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5267 | ||
8d748d1d AM |
5268 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 \ |
5269 | && (x)->size != 0) | |
252b5132 RH |
5270 | |
5271 | if (TOEND (sec1)) | |
5272 | { | |
48db3297 | 5273 | if (!TOEND (sec2)) |
252b5132 RH |
5274 | return 1; |
5275 | } | |
00a7cdc5 | 5276 | else if (TOEND (sec2)) |
252b5132 RH |
5277 | return -1; |
5278 | ||
5279 | #undef TOEND | |
5280 | ||
00a7cdc5 NC |
5281 | /* Sort by size, to put zero sized sections |
5282 | before others at the same address. */ | |
252b5132 | 5283 | |
eea6121a AM |
5284 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5285 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5286 | |
5287 | if (size1 < size2) | |
252b5132 | 5288 | return -1; |
eecdbe52 | 5289 | if (size1 > size2) |
252b5132 RH |
5290 | return 1; |
5291 | ||
5292 | return sec1->target_index - sec2->target_index; | |
5293 | } | |
5294 | ||
30fe1832 AM |
5295 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5296 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5297 | ||
5298 | static int | |
5299 | elf_sort_segments (const void *arg1, const void *arg2) | |
5300 | { | |
5301 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5302 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5303 | ||
5304 | if (m1->p_type != m2->p_type) | |
5305 | { | |
5306 | if (m1->p_type == PT_NULL) | |
5307 | return 1; | |
5308 | if (m2->p_type == PT_NULL) | |
5309 | return -1; | |
5310 | return m1->p_type < m2->p_type ? -1 : 1; | |
5311 | } | |
5312 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5313 | return m1->includes_filehdr ? -1 : 1; | |
5314 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5315 | return m1->no_sort_lma ? -1 : 1; | |
5316 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5317 | { | |
4b3ecb3b | 5318 | bfd_vma lma1, lma2; /* Octets. */ |
30fe1832 AM |
5319 | lma1 = 0; |
5320 | if (m1->p_paddr_valid) | |
4b3ecb3b | 5321 | lma1 = m1->p_paddr; |
30fe1832 | 5322 | else if (m1->count != 0) |
4b3ecb3b AM |
5323 | { |
5324 | unsigned int opb = bfd_octets_per_byte (m1->sections[0]->owner, | |
5325 | m1->sections[0]); | |
5326 | lma1 = (m1->sections[0]->lma + m1->p_vaddr_offset) * opb; | |
5327 | } | |
30fe1832 AM |
5328 | lma2 = 0; |
5329 | if (m2->p_paddr_valid) | |
4b3ecb3b | 5330 | lma2 = m2->p_paddr; |
30fe1832 | 5331 | else if (m2->count != 0) |
4b3ecb3b AM |
5332 | { |
5333 | unsigned int opb = bfd_octets_per_byte (m2->sections[0]->owner, | |
5334 | m2->sections[0]); | |
5335 | lma2 = (m2->sections[0]->lma + m2->p_vaddr_offset) * opb; | |
5336 | } | |
30fe1832 AM |
5337 | if (lma1 != lma2) |
5338 | return lma1 < lma2 ? -1 : 1; | |
5339 | } | |
5340 | if (m1->idx != m2->idx) | |
5341 | return m1->idx < m2->idx ? -1 : 1; | |
5342 | return 0; | |
5343 | } | |
5344 | ||
340b6d91 AC |
5345 | /* Ian Lance Taylor writes: |
5346 | ||
5347 | We shouldn't be using % with a negative signed number. That's just | |
5348 | not good. We have to make sure either that the number is not | |
5349 | negative, or that the number has an unsigned type. When the types | |
5350 | are all the same size they wind up as unsigned. When file_ptr is a | |
5351 | larger signed type, the arithmetic winds up as signed long long, | |
5352 | which is wrong. | |
5353 | ||
5354 | What we're trying to say here is something like ``increase OFF by | |
5355 | the least amount that will cause it to be equal to the VMA modulo | |
5356 | the page size.'' */ | |
5357 | /* In other words, something like: | |
5358 | ||
5359 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5360 | off_offset = off % bed->maxpagesize; | |
5361 | if (vma_offset < off_offset) | |
5362 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5363 | else | |
5364 | adjustment = vma_offset - off_offset; | |
08a40648 | 5365 | |
de194d85 | 5366 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5367 | |
5368 | static file_ptr | |
5369 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5370 | { | |
dc9155b2 NC |
5371 | /* PR binutils/16199: Handle an alignment of zero. */ |
5372 | if (maxpagesize == 0) | |
5373 | maxpagesize = 1; | |
340b6d91 AC |
5374 | return ((vma - off) % maxpagesize); |
5375 | } | |
5376 | ||
6d33f217 L |
5377 | static void |
5378 | print_segment_map (const struct elf_segment_map *m) | |
5379 | { | |
5380 | unsigned int j; | |
5381 | const char *pt = get_segment_type (m->p_type); | |
5382 | char buf[32]; | |
5383 | ||
5384 | if (pt == NULL) | |
5385 | { | |
5386 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5387 | sprintf (buf, "LOPROC+%7.7x", | |
5388 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5389 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5390 | sprintf (buf, "LOOS+%7.7x", | |
5391 | (unsigned int) (m->p_type - PT_LOOS)); | |
5392 | else | |
5393 | snprintf (buf, sizeof (buf), "%8.8x", | |
5394 | (unsigned int) m->p_type); | |
5395 | pt = buf; | |
5396 | } | |
4a97a0e5 | 5397 | fflush (stdout); |
6d33f217 L |
5398 | fprintf (stderr, "%s:", pt); |
5399 | for (j = 0; j < m->count; j++) | |
5400 | fprintf (stderr, " %s", m->sections [j]->name); | |
5401 | putc ('\n',stderr); | |
4a97a0e5 | 5402 | fflush (stderr); |
6d33f217 L |
5403 | } |
5404 | ||
0a1b45a2 | 5405 | static bool |
32812159 AM |
5406 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) |
5407 | { | |
5408 | void *buf; | |
0a1b45a2 | 5409 | bool ret; |
32812159 AM |
5410 | |
5411 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
0a1b45a2 | 5412 | return false; |
32812159 AM |
5413 | buf = bfd_zmalloc (len); |
5414 | if (buf == NULL) | |
0a1b45a2 | 5415 | return false; |
32812159 AM |
5416 | ret = bfd_bwrite (buf, len, abfd) == len; |
5417 | free (buf); | |
5418 | return ret; | |
5419 | } | |
5420 | ||
252b5132 RH |
5421 | /* Assign file positions to the sections based on the mapping from |
5422 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5423 | the file header. */ |
252b5132 | 5424 | |
0a1b45a2 | 5425 | static bool |
f3520d2f AM |
5426 | assign_file_positions_for_load_sections (bfd *abfd, |
5427 | struct bfd_link_info *link_info) | |
252b5132 RH |
5428 | { |
5429 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5430 | struct elf_segment_map *m; |
30fe1832 | 5431 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5432 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5433 | Elf_Internal_Phdr *p; |
502794d4 | 5434 | file_ptr off; /* Octets. */ |
3f570048 | 5435 | bfd_size_type maxpagesize; |
30fe1832 | 5436 | unsigned int alloc, actual; |
0920dee7 | 5437 | unsigned int i, j; |
30fe1832 | 5438 | struct elf_segment_map **sorted_seg_map; |
502794d4 | 5439 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
252b5132 | 5440 | |
e36284ab | 5441 | if (link_info == NULL |
ceae84aa | 5442 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
0a1b45a2 | 5443 | return false; |
252b5132 | 5444 | |
8ded5a0f | 5445 | alloc = 0; |
12bd6957 | 5446 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5447 | m->idx = alloc++; |
252b5132 | 5448 | |
82f2dbf7 NC |
5449 | if (alloc) |
5450 | { | |
5451 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5452 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5453 | } | |
5454 | else | |
5455 | { | |
5456 | /* PR binutils/12467. */ | |
5457 | elf_elfheader (abfd)->e_phoff = 0; | |
5458 | elf_elfheader (abfd)->e_phentsize = 0; | |
5459 | } | |
d324f6d6 | 5460 | |
8ded5a0f | 5461 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5462 | |
12bd6957 | 5463 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5464 | { |
5465 | actual = alloc; | |
5466 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5467 | } | |
8ded5a0f | 5468 | else |
30fe1832 AM |
5469 | { |
5470 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5471 | BFD_ASSERT (elf_program_header_size (abfd) | |
5472 | == actual * bed->s->sizeof_phdr); | |
5473 | BFD_ASSERT (actual >= alloc); | |
5474 | } | |
252b5132 RH |
5475 | |
5476 | if (alloc == 0) | |
f3520d2f | 5477 | { |
12bd6957 | 5478 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
0a1b45a2 | 5479 | return true; |
f3520d2f | 5480 | } |
252b5132 | 5481 | |
12bd6957 | 5482 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5483 | see assign_file_positions_except_relocs, so make sure we have |
5484 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5485 | The variable alloc contains the computed need, while |
5486 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5487 | layout. |
5488 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5489 | where the layout is forced to according to a larger size in the | |
5490 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5491 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5492 | + alloc * sizeof (*sorted_seg_map))); | |
5493 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5494 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5495 | if (phdrs == NULL) |
0a1b45a2 | 5496 | return false; |
252b5132 | 5497 | |
30fe1832 | 5498 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5499 | { |
30fe1832 | 5500 | sorted_seg_map[j] = m; |
252b5132 | 5501 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5502 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5503 | not be done to the PT_NOTE section of a corefile, which may |
5504 | contain several pseudo-sections artificially created by bfd. | |
5505 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5506 | if (m->count > 1 |
5507 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5508 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5509 | { |
5510 | for (i = 0; i < m->count; i++) | |
5511 | m->sections[i]->target_index = i; | |
5512 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5513 | elf_sort_sections); | |
5514 | } | |
30fe1832 AM |
5515 | } |
5516 | if (alloc > 1) | |
5517 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5518 | elf_sort_segments); | |
5519 | ||
5520 | maxpagesize = 1; | |
5521 | if ((abfd->flags & D_PAGED) != 0) | |
c410035d AM |
5522 | { |
5523 | if (link_info != NULL) | |
5524 | maxpagesize = link_info->maxpagesize; | |
5525 | else | |
5526 | maxpagesize = bed->maxpagesize; | |
5527 | } | |
30fe1832 AM |
5528 | |
5529 | /* Sections must map to file offsets past the ELF file header. */ | |
5530 | off = bed->s->sizeof_ehdr; | |
5531 | /* And if one of the PT_LOAD headers doesn't include the program | |
5532 | headers then we'll be mapping program headers in the usual | |
5533 | position after the ELF file header. */ | |
5534 | phdr_load_seg = NULL; | |
5535 | for (j = 0; j < alloc; j++) | |
5536 | { | |
5537 | m = sorted_seg_map[j]; | |
5538 | if (m->p_type != PT_LOAD) | |
5539 | break; | |
5540 | if (m->includes_phdrs) | |
5541 | { | |
5542 | phdr_load_seg = m; | |
5543 | break; | |
5544 | } | |
5545 | } | |
5546 | if (phdr_load_seg == NULL) | |
5547 | off += actual * bed->s->sizeof_phdr; | |
5548 | ||
5549 | for (j = 0; j < alloc; j++) | |
5550 | { | |
5551 | asection **secpp; | |
502794d4 | 5552 | bfd_vma off_adjust; /* Octets. */ |
0a1b45a2 | 5553 | bool no_contents; |
252b5132 | 5554 | |
b301b248 AM |
5555 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5556 | number of sections with contents contributing to both p_filesz | |
5557 | and p_memsz, followed by a number of sections with no contents | |
5558 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5559 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5560 | m = sorted_seg_map[j]; |
5561 | p = phdrs + m->idx; | |
252b5132 | 5562 | p->p_type = m->p_type; |
28a7f3e7 | 5563 | p->p_flags = m->p_flags; |
252b5132 | 5564 | |
3f570048 | 5565 | if (m->count == 0) |
502794d4 | 5566 | p->p_vaddr = m->p_vaddr_offset * opb; |
3f570048 | 5567 | else |
502794d4 | 5568 | p->p_vaddr = (m->sections[0]->vma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5569 | |
5570 | if (m->p_paddr_valid) | |
5571 | p->p_paddr = m->p_paddr; | |
5572 | else if (m->count == 0) | |
5573 | p->p_paddr = 0; | |
5574 | else | |
502794d4 | 5575 | p->p_paddr = (m->sections[0]->lma + m->p_vaddr_offset) * opb; |
3f570048 AM |
5576 | |
5577 | if (p->p_type == PT_LOAD | |
5578 | && (abfd->flags & D_PAGED) != 0) | |
5579 | { | |
5580 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5581 | the maximum page size. When copying an executable with | |
5582 | objcopy, we set m->p_align from the input file. Use this | |
5583 | value for maxpagesize rather than bed->maxpagesize, which | |
5584 | may be different. Note that we use maxpagesize for PT_TLS | |
5585 | segment alignment later in this function, so we are relying | |
5586 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5587 | segment. */ | |
5588 | if (m->p_align_valid) | |
5589 | maxpagesize = m->p_align; | |
5590 | ||
5591 | p->p_align = maxpagesize; | |
5592 | } | |
3271a814 NS |
5593 | else if (m->p_align_valid) |
5594 | p->p_align = m->p_align; | |
e970b90a DJ |
5595 | else if (m->count == 0) |
5596 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5597 | |
5598 | if (m == phdr_load_seg) | |
5599 | { | |
5600 | if (!m->includes_filehdr) | |
5601 | p->p_offset = off; | |
5602 | off += actual * bed->s->sizeof_phdr; | |
5603 | } | |
3f570048 | 5604 | |
0a1b45a2 | 5605 | no_contents = false; |
bf988460 | 5606 | off_adjust = 0; |
252b5132 | 5607 | if (p->p_type == PT_LOAD |
b301b248 | 5608 | && m->count > 0) |
252b5132 | 5609 | { |
66631823 | 5610 | bfd_size_type align; /* Bytes. */ |
a49e53ed | 5611 | unsigned int align_power = 0; |
b301b248 | 5612 | |
3271a814 NS |
5613 | if (m->p_align_valid) |
5614 | align = p->p_align; | |
5615 | else | |
252b5132 | 5616 | { |
3271a814 NS |
5617 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5618 | { | |
5619 | unsigned int secalign; | |
08a40648 | 5620 | |
fd361982 | 5621 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5622 | if (secalign > align_power) |
5623 | align_power = secalign; | |
5624 | } | |
5625 | align = (bfd_size_type) 1 << align_power; | |
5626 | if (align < maxpagesize) | |
5627 | align = maxpagesize; | |
b301b248 | 5628 | } |
252b5132 | 5629 | |
02bf8d82 AM |
5630 | for (i = 0; i < m->count; i++) |
5631 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5632 | /* If we aren't making room for this section, then | |
5633 | it must be SHT_NOBITS regardless of what we've | |
5634 | set via struct bfd_elf_special_section. */ | |
5635 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5636 | ||
bf988460 | 5637 | /* Find out whether this segment contains any loadable |
aea274d3 | 5638 | sections. */ |
0a1b45a2 | 5639 | no_contents = true; |
aea274d3 AM |
5640 | for (i = 0; i < m->count; i++) |
5641 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5642 | { | |
0a1b45a2 | 5643 | no_contents = false; |
aea274d3 AM |
5644 | break; |
5645 | } | |
bf988460 | 5646 | |
66631823 | 5647 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align * opb); |
a8c75b76 AM |
5648 | |
5649 | /* Broken hardware and/or kernel require that files do not | |
5650 | map the same page with different permissions on some hppa | |
5651 | processors. */ | |
30fe1832 AM |
5652 | if (j != 0 |
5653 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5654 | && bed->no_page_alias |
5655 | && (off & (maxpagesize - 1)) != 0 | |
502794d4 CE |
5656 | && ((off & -maxpagesize) |
5657 | == ((off + off_adjust) & -maxpagesize))) | |
a8c75b76 | 5658 | off_adjust += maxpagesize; |
bf988460 AM |
5659 | off += off_adjust; |
5660 | if (no_contents) | |
5661 | { | |
5662 | /* We shouldn't need to align the segment on disk since | |
5663 | the segment doesn't need file space, but the gABI | |
5664 | arguably requires the alignment and glibc ld.so | |
5665 | checks it. So to comply with the alignment | |
5666 | requirement but not waste file space, we adjust | |
5667 | p_offset for just this segment. (OFF_ADJUST is | |
5668 | subtracted from OFF later.) This may put p_offset | |
5669 | past the end of file, but that shouldn't matter. */ | |
5670 | } | |
5671 | else | |
5672 | off_adjust = 0; | |
252b5132 | 5673 | } |
b1a6d0b1 NC |
5674 | /* Make sure the .dynamic section is the first section in the |
5675 | PT_DYNAMIC segment. */ | |
5676 | else if (p->p_type == PT_DYNAMIC | |
5677 | && m->count > 1 | |
5678 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5679 | { | |
5680 | _bfd_error_handler | |
871b3ab2 | 5681 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5682 | " is not the .dynamic section"), |
b301b248 | 5683 | abfd); |
b1a6d0b1 | 5684 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 5685 | return false; |
b1a6d0b1 | 5686 | } |
3f001e84 JK |
5687 | /* Set the note section type to SHT_NOTE. */ |
5688 | else if (p->p_type == PT_NOTE) | |
5689 | for (i = 0; i < m->count; i++) | |
5690 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5691 | |
252b5132 RH |
5692 | if (m->includes_filehdr) |
5693 | { | |
bf988460 | 5694 | if (!m->p_flags_valid) |
252b5132 | 5695 | p->p_flags |= PF_R; |
252b5132 RH |
5696 | p->p_filesz = bed->s->sizeof_ehdr; |
5697 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5698 | if (p->p_type == PT_LOAD) |
252b5132 | 5699 | { |
30fe1832 | 5700 | if (m->count > 0) |
252b5132 | 5701 | { |
30fe1832 AM |
5702 | if (p->p_vaddr < (bfd_vma) off |
5703 | || (!m->p_paddr_valid | |
5704 | && p->p_paddr < (bfd_vma) off)) | |
5705 | { | |
5706 | _bfd_error_handler | |
5707 | (_("%pB: not enough room for program headers," | |
5708 | " try linking with -N"), | |
5709 | abfd); | |
5710 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 5711 | return false; |
30fe1832 AM |
5712 | } |
5713 | p->p_vaddr -= off; | |
5714 | if (!m->p_paddr_valid) | |
5715 | p->p_paddr -= off; | |
252b5132 | 5716 | } |
30fe1832 AM |
5717 | } |
5718 | else if (sorted_seg_map[0]->includes_filehdr) | |
5719 | { | |
5720 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5721 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5722 | if (!m->p_paddr_valid) |
30fe1832 | 5723 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5724 | } |
252b5132 RH |
5725 | } |
5726 | ||
5727 | if (m->includes_phdrs) | |
5728 | { | |
bf988460 | 5729 | if (!m->p_flags_valid) |
252b5132 | 5730 | p->p_flags |= PF_R; |
30fe1832 AM |
5731 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5732 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5733 | if (!m->includes_filehdr) |
252b5132 | 5734 | { |
30fe1832 | 5735 | if (p->p_type == PT_LOAD) |
252b5132 | 5736 | { |
30fe1832 AM |
5737 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5738 | if (m->count > 0) | |
5739 | { | |
5740 | p->p_vaddr -= off - p->p_offset; | |
5741 | if (!m->p_paddr_valid) | |
5742 | p->p_paddr -= off - p->p_offset; | |
5743 | } | |
5744 | } | |
5745 | else if (phdr_load_seg != NULL) | |
5746 | { | |
5747 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
502794d4 | 5748 | bfd_vma phdr_off = 0; /* Octets. */ |
30fe1832 AM |
5749 | if (phdr_load_seg->includes_filehdr) |
5750 | phdr_off = bed->s->sizeof_ehdr; | |
5751 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5752 | if (!m->p_paddr_valid) |
30fe1832 AM |
5753 | p->p_paddr = phdr->p_paddr + phdr_off; |
5754 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5755 | } |
30fe1832 AM |
5756 | else |
5757 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5758 | } |
252b5132 RH |
5759 | } |
5760 | ||
5761 | if (p->p_type == PT_LOAD | |
5762 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5763 | { | |
bf988460 | 5764 | if (!m->includes_filehdr && !m->includes_phdrs) |
0bc3450e AM |
5765 | { |
5766 | p->p_offset = off; | |
5767 | if (no_contents) | |
67641dd3 AM |
5768 | { |
5769 | /* Put meaningless p_offset for PT_LOAD segments | |
5770 | without file contents somewhere within the first | |
5771 | page, in an attempt to not point past EOF. */ | |
5772 | bfd_size_type align = maxpagesize; | |
5773 | if (align < p->p_align) | |
5774 | align = p->p_align; | |
5775 | if (align < 1) | |
5776 | align = 1; | |
5777 | p->p_offset = off % align; | |
5778 | } | |
0bc3450e | 5779 | } |
252b5132 RH |
5780 | else |
5781 | { | |
502794d4 | 5782 | file_ptr adjust; /* Octets. */ |
252b5132 RH |
5783 | |
5784 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5785 | if (!no_contents) |
5786 | p->p_filesz += adjust; | |
252b5132 RH |
5787 | p->p_memsz += adjust; |
5788 | } | |
5789 | } | |
5790 | ||
1ea63fd2 AM |
5791 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5792 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5793 | core files, for sections in PT_NOTE segments. | |
5794 | assign_file_positions_for_non_load_sections will set filepos | |
5795 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5796 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5797 | { | |
5798 | asection *sec; | |
252b5132 | 5799 | bfd_size_type align; |
627b32bc | 5800 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5801 | |
5802 | sec = *secpp; | |
02bf8d82 | 5803 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5804 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5805 | |
88967714 AM |
5806 | if ((p->p_type == PT_LOAD |
5807 | || p->p_type == PT_TLS) | |
5808 | && (this_hdr->sh_type != SHT_NOBITS | |
5809 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5810 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5811 | || p->p_type == PT_TLS)))) | |
252b5132 | 5812 | { |
502794d4 CE |
5813 | bfd_vma p_start = p->p_paddr; /* Octets. */ |
5814 | bfd_vma p_end = p_start + p->p_memsz; /* Octets. */ | |
5815 | bfd_vma s_start = sec->lma * opb; /* Octets. */ | |
5816 | bfd_vma adjust = s_start - p_end; /* Octets. */ | |
252b5132 | 5817 | |
a2d1e028 L |
5818 | if (adjust != 0 |
5819 | && (s_start < p_end | |
5820 | || p_end < p_start)) | |
252b5132 | 5821 | { |
4eca0228 | 5822 | _bfd_error_handler |
695344c0 | 5823 | /* xgettext:c-format */ |
2dcf00ce | 5824 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
502794d4 CE |
5825 | abfd, sec, (uint64_t) s_start / opb, |
5826 | (uint64_t) p_end / opb); | |
88967714 | 5827 | adjust = 0; |
502794d4 | 5828 | sec->lma = p_end / opb; |
1cfb7d1e | 5829 | } |
3ac9b6c9 | 5830 | p->p_memsz += adjust; |
1cfb7d1e | 5831 | |
d16e3d2e | 5832 | if (p->p_type == PT_LOAD) |
88967714 | 5833 | { |
d16e3d2e | 5834 | if (this_hdr->sh_type != SHT_NOBITS) |
32812159 | 5835 | { |
d16e3d2e | 5836 | off_adjust = 0; |
30fe1832 AM |
5837 | if (p->p_filesz + adjust < p->p_memsz) |
5838 | { | |
5839 | /* We have a PROGBITS section following NOBITS ones. | |
5840 | Allocate file space for the NOBITS section(s) and | |
5841 | zero it. */ | |
5842 | adjust = p->p_memsz - p->p_filesz; | |
5843 | if (!write_zeros (abfd, off, adjust)) | |
0a1b45a2 | 5844 | return false; |
30fe1832 | 5845 | } |
d16e3d2e AM |
5846 | } |
5847 | /* We only adjust sh_offset in SHT_NOBITS sections | |
5848 | as would seem proper for their address when the | |
5849 | section is first in the segment. sh_offset | |
5850 | doesn't really have any significance for | |
5851 | SHT_NOBITS anyway, apart from a notional position | |
5852 | relative to other sections. Historically we | |
5853 | didn't bother with adjusting sh_offset and some | |
5854 | programs depend on it not being adjusted. See | |
5855 | pr12921 and pr25662. */ | |
5856 | if (this_hdr->sh_type != SHT_NOBITS || i == 0) | |
5857 | { | |
30fe1832 | 5858 | off += adjust; |
d16e3d2e AM |
5859 | if (this_hdr->sh_type == SHT_NOBITS) |
5860 | off_adjust += adjust; | |
32812159 | 5861 | } |
252b5132 | 5862 | } |
d16e3d2e AM |
5863 | if (this_hdr->sh_type != SHT_NOBITS) |
5864 | p->p_filesz += adjust; | |
252b5132 RH |
5865 | } |
5866 | ||
5867 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5868 | { | |
b301b248 AM |
5869 | /* The section at i == 0 is the one that actually contains |
5870 | everything. */ | |
4a938328 MS |
5871 | if (i == 0) |
5872 | { | |
627b32bc | 5873 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5874 | off += this_hdr->sh_size; |
5875 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5876 | p->p_memsz = 0; |
5877 | p->p_align = 1; | |
252b5132 | 5878 | } |
4a938328 | 5879 | else |
252b5132 | 5880 | { |
b301b248 | 5881 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5882 | sec->filepos = 0; |
eea6121a | 5883 | sec->size = 0; |
b301b248 AM |
5884 | sec->flags = 0; |
5885 | continue; | |
252b5132 | 5886 | } |
252b5132 RH |
5887 | } |
5888 | else | |
5889 | { | |
1e951488 | 5890 | if (p->p_type == PT_LOAD) |
b301b248 | 5891 | { |
1e951488 AM |
5892 | this_hdr->sh_offset = sec->filepos = off; |
5893 | if (this_hdr->sh_type != SHT_NOBITS) | |
5894 | off += this_hdr->sh_size; | |
5895 | } | |
5896 | else if (this_hdr->sh_type == SHT_NOBITS | |
5897 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5898 | && this_hdr->sh_offset == 0) | |
5899 | { | |
5900 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5901 | (See _bfd_elf_map_sections_to_segments "Create a | |
5902 | final PT_LOAD".) Set sh_offset to the value it | |
5903 | would have if we had created a zero p_filesz and | |
5904 | p_memsz PT_LOAD header for the section. This | |
5905 | also makes the PT_TLS header have the same | |
5906 | p_offset value. */ | |
5907 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5908 | off, align); | |
5909 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5910 | } |
252b5132 | 5911 | |
02bf8d82 | 5912 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5913 | { |
6a3cd2b4 | 5914 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5915 | /* A load section without SHF_ALLOC is something like |
5916 | a note section in a PT_NOTE segment. These take | |
5917 | file space but are not loaded into memory. */ | |
5918 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5919 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5920 | } |
6a3cd2b4 | 5921 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5922 | { |
6a3cd2b4 AM |
5923 | if (p->p_type == PT_TLS) |
5924 | p->p_memsz += this_hdr->sh_size; | |
5925 | ||
5926 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5927 | normal segments. */ | |
5928 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5929 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5930 | } |
5931 | ||
b10a8ae0 L |
5932 | if (align > p->p_align |
5933 | && !m->p_align_valid | |
5934 | && (p->p_type != PT_LOAD | |
5935 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5936 | p->p_align = align; |
5937 | } | |
5938 | ||
bf988460 | 5939 | if (!m->p_flags_valid) |
252b5132 RH |
5940 | { |
5941 | p->p_flags |= PF_R; | |
02bf8d82 | 5942 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5943 | p->p_flags |= PF_X; |
02bf8d82 | 5944 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5945 | p->p_flags |= PF_W; |
5946 | } | |
5947 | } | |
43a8475c | 5948 | |
bf988460 | 5949 | off -= off_adjust; |
0920dee7 | 5950 | |
30fe1832 AM |
5951 | /* PR ld/20815 - Check that the program header segment, if |
5952 | present, will be loaded into memory. */ | |
5953 | if (p->p_type == PT_PHDR | |
5954 | && phdr_load_seg == NULL | |
5955 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5956 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5957 | { | |
5958 | /* The fix for this error is usually to edit the linker script being | |
5959 | used and set up the program headers manually. Either that or | |
5960 | leave room for the headers at the start of the SECTIONS. */ | |
5961 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5962 | " by LOAD segment"), | |
5963 | abfd); | |
7b3c2715 | 5964 | if (link_info == NULL) |
0a1b45a2 | 5965 | return false; |
7b3c2715 AM |
5966 | /* Arrange for the linker to exit with an error, deleting |
5967 | the output file unless --noinhibit-exec is given. */ | |
5968 | link_info->callbacks->info ("%X"); | |
30fe1832 AM |
5969 | } |
5970 | ||
7c928300 AM |
5971 | /* Check that all sections are in a PT_LOAD segment. |
5972 | Don't check funky gdb generated core files. */ | |
5973 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 | 5974 | { |
0a1b45a2 | 5975 | bool check_vma = true; |
9a83a553 AM |
5976 | |
5977 | for (i = 1; i < m->count; i++) | |
5978 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5979 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5980 | ->this_hdr), p) != 0 | |
5981 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5982 | ->this_hdr), p) != 0) | |
0920dee7 | 5983 | { |
9a83a553 | 5984 | /* Looks like we have overlays packed into the segment. */ |
0a1b45a2 | 5985 | check_vma = false; |
9a83a553 | 5986 | break; |
0920dee7 | 5987 | } |
9a83a553 AM |
5988 | |
5989 | for (i = 0; i < m->count; i++) | |
5990 | { | |
5991 | Elf_Internal_Shdr *this_hdr; | |
5992 | asection *sec; | |
5993 | ||
5994 | sec = m->sections[i]; | |
5995 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5996 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5997 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5998 | { |
4eca0228 | 5999 | _bfd_error_handler |
695344c0 | 6000 | /* xgettext:c-format */ |
871b3ab2 | 6001 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
6002 | abfd, sec, j); |
6003 | print_segment_map (m); | |
6004 | } | |
6005 | } | |
6006 | } | |
252b5132 RH |
6007 | } |
6008 | ||
12bd6957 | 6009 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
6010 | |
6011 | if (link_info != NULL | |
6012 | && phdr_load_seg != NULL | |
6013 | && phdr_load_seg->includes_filehdr) | |
6014 | { | |
6015 | /* There is a segment that contains both the file headers and the | |
6016 | program headers, so provide a symbol __ehdr_start pointing there. | |
6017 | A program can use this to examine itself robustly. */ | |
6018 | ||
6019 | struct elf_link_hash_entry *hash | |
6020 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
0a1b45a2 | 6021 | false, false, true); |
30fe1832 AM |
6022 | /* If the symbol was referenced and not defined, define it. */ |
6023 | if (hash != NULL | |
6024 | && (hash->root.type == bfd_link_hash_new | |
6025 | || hash->root.type == bfd_link_hash_undefined | |
6026 | || hash->root.type == bfd_link_hash_undefweak | |
6027 | || hash->root.type == bfd_link_hash_common)) | |
6028 | { | |
6029 | asection *s = NULL; | |
66631823 | 6030 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr / opb; |
30fe1832 AM |
6031 | |
6032 | if (phdr_load_seg->count != 0) | |
6033 | /* The segment contains sections, so use the first one. */ | |
6034 | s = phdr_load_seg->sections[0]; | |
6035 | else | |
6036 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
6037 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6038 | if (m->p_type == PT_LOAD && m->count != 0) | |
6039 | { | |
6040 | s = m->sections[0]; | |
6041 | break; | |
6042 | } | |
6043 | ||
6044 | if (s != NULL) | |
6045 | { | |
6046 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6047 | hash->root.u.def.section = s; | |
6048 | } | |
6049 | else | |
6050 | { | |
6051 | hash->root.u.def.value = filehdr_vaddr; | |
6052 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6053 | } | |
6054 | ||
6055 | hash->root.type = bfd_link_hash_defined; | |
6056 | hash->def_regular = 1; | |
6057 | hash->non_elf = 0; | |
6058 | } | |
6059 | } | |
6060 | ||
0a1b45a2 | 6061 | return true; |
f3520d2f AM |
6062 | } |
6063 | ||
1faa385f NC |
6064 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6065 | is no defined method for detecting such files, so we have to | |
6066 | use heuristics instead. */ | |
6067 | ||
0a1b45a2 | 6068 | bool |
1faa385f NC |
6069 | is_debuginfo_file (bfd *abfd) |
6070 | { | |
6071 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 6072 | return false; |
1faa385f NC |
6073 | |
6074 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6075 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6076 | Elf_Internal_Shdr **headerp; | |
6077 | ||
6078 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6079 | { | |
6080 | Elf_Internal_Shdr *header = * headerp; | |
6081 | ||
6082 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6083 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6084 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6085 | && header->sh_type != SHT_NOBITS | |
6086 | && header->sh_type != SHT_NOTE) | |
0a1b45a2 | 6087 | return false; |
1faa385f NC |
6088 | } |
6089 | ||
0a1b45a2 | 6090 | return true; |
1faa385f NC |
6091 | } |
6092 | ||
1ff6de03 NA |
6093 | /* Assign file positions for the other sections, except for compressed debugging |
6094 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f | 6095 | |
0a1b45a2 | 6096 | static bool |
f3520d2f AM |
6097 | assign_file_positions_for_non_load_sections (bfd *abfd, |
6098 | struct bfd_link_info *link_info) | |
6099 | { | |
6100 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6101 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6102 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6103 | Elf_Internal_Phdr *phdrs; |
6104 | Elf_Internal_Phdr *p; | |
6105 | struct elf_segment_map *m; | |
f3520d2f | 6106 | file_ptr off; |
66631823 | 6107 | unsigned int opb = bfd_octets_per_byte (abfd, NULL); |
c410035d | 6108 | bfd_vma maxpagesize; |
f3520d2f | 6109 | |
c410035d AM |
6110 | if (link_info != NULL) |
6111 | maxpagesize = link_info->maxpagesize; | |
6112 | else | |
6113 | maxpagesize = bed->maxpagesize; | |
5c182d5f | 6114 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6115 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6116 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6117 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6118 | { |
5c182d5f AM |
6119 | Elf_Internal_Shdr *hdr; |
6120 | ||
6121 | hdr = *hdrpp; | |
6122 | if (hdr->bfd_section != NULL | |
252e386e AM |
6123 | && (hdr->bfd_section->filepos != 0 |
6124 | || (hdr->sh_type == SHT_NOBITS | |
6125 | && hdr->contents == NULL))) | |
627b32bc | 6126 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6127 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6128 | { | |
1faa385f NC |
6129 | if (hdr->sh_size != 0 |
6130 | /* PR 24717 - debuginfo files are known to be not strictly | |
6131 | compliant with the ELF standard. In particular they often | |
6132 | have .note.gnu.property sections that are outside of any | |
6133 | loadable segment. This is not a problem for such files, | |
6134 | so do not warn about them. */ | |
6135 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6136 | _bfd_error_handler |
695344c0 | 6137 | /* xgettext:c-format */ |
871b3ab2 | 6138 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6139 | abfd, |
6140 | (hdr->bfd_section == NULL | |
6141 | ? "*unknown*" | |
6142 | : hdr->bfd_section->name)); | |
3ba71138 L |
6143 | /* We don't need to page align empty sections. */ |
6144 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f | 6145 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
c410035d | 6146 | maxpagesize); |
5c182d5f AM |
6147 | else |
6148 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
6149 | hdr->sh_addralign); | |
6150 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
0a1b45a2 | 6151 | false); |
5c182d5f AM |
6152 | } |
6153 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6154 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6155 | /* We don't know the offset of these sections yet: their size has |
6156 | not been decided. */ | |
0ce398f1 | 6157 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6158 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6159 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6160 | && abfd->is_linker_output))) | |
12bd6957 | 6161 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6162 | || (elf_symtab_shndx_list (abfd) != NULL |
6163 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6164 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6165 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6166 | hdr->sh_offset = -1; |
6167 | else | |
0a1b45a2 | 6168 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
5c182d5f | 6169 | } |
30fe1832 | 6170 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6171 | |
252b5132 RH |
6172 | /* Now that we have set the section file positions, we can set up |
6173 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6174 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6175 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6176 | { |
129af99f | 6177 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6178 | { |
66631823 | 6179 | bfd_vma start, end; /* Bytes. */ |
0a1b45a2 | 6180 | bool ok; |
1ea63fd2 | 6181 | |
129af99f | 6182 | if (link_info != NULL) |
8c37241b | 6183 | { |
129af99f | 6184 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6185 | in link_info. Note that there may be padding between |
6186 | relro_start and the first RELRO section. */ | |
6187 | start = link_info->relro_start; | |
6188 | end = link_info->relro_end; | |
6189 | } | |
6190 | else if (m->count != 0) | |
6191 | { | |
6192 | if (!m->p_size_valid) | |
6193 | abort (); | |
6194 | start = m->sections[0]->vma; | |
66631823 | 6195 | end = start + m->p_size / opb; |
f2731e0c AM |
6196 | } |
6197 | else | |
6198 | { | |
6199 | start = 0; | |
6200 | end = 0; | |
6201 | } | |
6202 | ||
0a1b45a2 | 6203 | ok = false; |
f2731e0c AM |
6204 | if (start < end) |
6205 | { | |
6206 | struct elf_segment_map *lm; | |
6207 | const Elf_Internal_Phdr *lp; | |
6208 | unsigned int i; | |
6209 | ||
6210 | /* Find a LOAD segment containing a section in the RELRO | |
6211 | segment. */ | |
12bd6957 | 6212 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6213 | lm != NULL; |
6214 | lm = lm->next, lp++) | |
8c37241b JJ |
6215 | { |
6216 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6217 | && lm->count != 0 |
dbc88fc1 AM |
6218 | && (lm->sections[lm->count - 1]->vma |
6219 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
66631823 | 6220 | ? lm->sections[lm->count - 1]->size / opb |
dbc88fc1 | 6221 | : 0)) > start |
f2731e0c | 6222 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6223 | break; |
6224 | } | |
f2731e0c | 6225 | |
01f7e10c | 6226 | if (lm != NULL) |
129af99f | 6227 | { |
01f7e10c AM |
6228 | /* Find the section starting the RELRO segment. */ |
6229 | for (i = 0; i < lm->count; i++) | |
6230 | { | |
6231 | asection *s = lm->sections[i]; | |
6232 | if (s->vma >= start | |
6233 | && s->vma < end | |
6234 | && s->size != 0) | |
6235 | break; | |
6236 | } | |
6237 | ||
6238 | if (i < lm->count) | |
6239 | { | |
502794d4 CE |
6240 | p->p_vaddr = lm->sections[i]->vma * opb; |
6241 | p->p_paddr = lm->sections[i]->lma * opb; | |
01f7e10c | 6242 | p->p_offset = lm->sections[i]->filepos; |
66631823 | 6243 | p->p_memsz = end * opb - p->p_vaddr; |
01f7e10c AM |
6244 | p->p_filesz = p->p_memsz; |
6245 | ||
6246 | /* The RELRO segment typically ends a few bytes | |
6247 | into .got.plt but other layouts are possible. | |
6248 | In cases where the end does not match any | |
6249 | loaded section (for instance is in file | |
6250 | padding), trim p_filesz back to correspond to | |
6251 | the end of loaded section contents. */ | |
6252 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6253 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6254 | ||
6255 | /* Preserve the alignment and flags if they are | |
6256 | valid. The gold linker generates RW/4 for | |
6257 | the PT_GNU_RELRO section. It is better for | |
6258 | objcopy/strip to honor these attributes | |
6259 | otherwise gdb will choke when using separate | |
6260 | debug files. */ | |
6261 | if (!m->p_align_valid) | |
6262 | p->p_align = 1; | |
6263 | if (!m->p_flags_valid) | |
6264 | p->p_flags = PF_R; | |
0a1b45a2 | 6265 | ok = true; |
01f7e10c | 6266 | } |
129af99f | 6267 | } |
b84a33b5 | 6268 | } |
01f7e10c AM |
6269 | if (link_info != NULL) |
6270 | BFD_ASSERT (ok); | |
6271 | if (!ok) | |
6272 | memset (p, 0, sizeof *p); | |
129af99f | 6273 | } |
04c3a755 NS |
6274 | else if (p->p_type == PT_GNU_STACK) |
6275 | { | |
6276 | if (m->p_size_valid) | |
6277 | p->p_memsz = m->p_size; | |
6278 | } | |
129af99f AS |
6279 | else if (m->count != 0) |
6280 | { | |
e06efbf1 | 6281 | unsigned int i; |
1a9ccd70 | 6282 | |
129af99f AS |
6283 | if (p->p_type != PT_LOAD |
6284 | && (p->p_type != PT_NOTE | |
6285 | || bfd_get_format (abfd) != bfd_core)) | |
6286 | { | |
1a9ccd70 NC |
6287 | /* A user specified segment layout may include a PHDR |
6288 | segment that overlaps with a LOAD segment... */ | |
6289 | if (p->p_type == PT_PHDR) | |
6290 | { | |
6291 | m->count = 0; | |
6292 | continue; | |
6293 | } | |
6294 | ||
c86934ce NC |
6295 | if (m->includes_filehdr || m->includes_phdrs) |
6296 | { | |
b1fa9dd6 | 6297 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6298 | _bfd_error_handler |
871b3ab2 | 6299 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6300 | "and/or program header"), |
6301 | abfd, (int) (p - phdrs)); | |
0a1b45a2 | 6302 | return false; |
c86934ce | 6303 | } |
129af99f | 6304 | |
86b2281f | 6305 | p->p_filesz = 0; |
129af99f | 6306 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6307 | for (i = m->count; i-- != 0;) |
6308 | { | |
6309 | asection *sect = m->sections[i]; | |
6310 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6311 | if (hdr->sh_type != SHT_NOBITS) | |
6312 | { | |
6313 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6314 | + hdr->sh_size); | |
9917b559 L |
6315 | /* NB: p_memsz of the loadable PT_NOTE segment |
6316 | should be the same as p_filesz. */ | |
6317 | if (p->p_type == PT_NOTE | |
6318 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
6319 | p->p_memsz = p->p_filesz; | |
86b2281f AM |
6320 | break; |
6321 | } | |
6322 | } | |
129af99f AS |
6323 | } |
6324 | } | |
252b5132 RH |
6325 | } |
6326 | ||
0a1b45a2 | 6327 | return true; |
252b5132 RH |
6328 | } |
6329 | ||
6a40cf0c NC |
6330 | static elf_section_list * |
6331 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6332 | { | |
6333 | for (;list != NULL; list = list->next) | |
6334 | if (list->ndx == i) | |
6335 | break; | |
6336 | return list; | |
6337 | } | |
6338 | ||
252b5132 RH |
6339 | /* Work out the file positions of all the sections. This is called by |
6340 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6341 | VMAs must be known before this is called. | |
6342 | ||
e0638f70 | 6343 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6344 | "side-channel" data attached to a section to which they apply, and those that |
6345 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6346 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6347 | here, unless they form part of the loadable image. Reloc sections not | |
6348 | assigned here (and compressed debugging sections and CTF sections which | |
6349 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6350 | assign_file_positions_for_relocs. |
252b5132 RH |
6351 | |
6352 | We also don't set the positions of the .symtab and .strtab here. */ | |
6353 | ||
0a1b45a2 | 6354 | static bool |
c84fca4d AO |
6355 | assign_file_positions_except_relocs (bfd *abfd, |
6356 | struct bfd_link_info *link_info) | |
252b5132 | 6357 | { |
5c182d5f AM |
6358 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6359 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6360 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
6d6c25c8 | 6361 | unsigned int alloc; |
252b5132 RH |
6362 | |
6363 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6364 | && bfd_get_format (abfd) != bfd_core) | |
6365 | { | |
5c182d5f AM |
6366 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6367 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6368 | Elf_Internal_Shdr **hdrpp; |
6369 | unsigned int i; | |
a485e98e | 6370 | file_ptr off; |
252b5132 RH |
6371 | |
6372 | /* Start after the ELF header. */ | |
6373 | off = i_ehdrp->e_ehsize; | |
6374 | ||
6375 | /* We are not creating an executable, which means that we are | |
6376 | not creating a program header, and that the actual order of | |
6377 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6378 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6379 | { |
6380 | Elf_Internal_Shdr *hdr; | |
6381 | ||
6382 | hdr = *hdrpp; | |
e0638f70 AM |
6383 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6384 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6385 | /* Do not assign offsets for these sections yet: we don't know |
6386 | their sizes. */ | |
0ce398f1 | 6387 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6388 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6389 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6390 | && abfd->is_linker_output))) | |
12bd6957 | 6391 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6392 | || (elf_symtab_shndx_list (abfd) != NULL |
6393 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6394 | || i == elf_strtab_sec (abfd) |
6395 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6396 | { |
6397 | hdr->sh_offset = -1; | |
252b5132 | 6398 | } |
9ad5cbcf | 6399 | else |
0a1b45a2 | 6400 | off = _bfd_elf_assign_file_position_for_section (hdr, off, true); |
252b5132 | 6401 | } |
a485e98e AM |
6402 | |
6403 | elf_next_file_pos (abfd) = off; | |
6d6c25c8 | 6404 | elf_program_header_size (abfd) = 0; |
252b5132 RH |
6405 | } |
6406 | else | |
6407 | { | |
252b5132 | 6408 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6409 | assignment of sections to segments. */ |
f3520d2f | 6410 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
0a1b45a2 | 6411 | return false; |
f3520d2f AM |
6412 | |
6413 | /* And for non-load sections. */ | |
6414 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
0a1b45a2 | 6415 | return false; |
6d6c25c8 | 6416 | } |
f3520d2f | 6417 | |
6d6c25c8 | 6418 | if (!(*bed->elf_backend_modify_headers) (abfd, link_info)) |
0a1b45a2 | 6419 | return false; |
1a9ccd70 | 6420 | |
6d6c25c8 AM |
6421 | /* Write out the program headers. */ |
6422 | alloc = i_ehdrp->e_phnum; | |
6423 | if (alloc != 0) | |
6424 | { | |
30fe1832 | 6425 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 | 6426 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
0a1b45a2 | 6427 | return false; |
252b5132 RH |
6428 | } |
6429 | ||
0a1b45a2 | 6430 | return true; |
252b5132 RH |
6431 | } |
6432 | ||
0a1b45a2 | 6433 | bool |
ed7e9d0b AM |
6434 | _bfd_elf_init_file_header (bfd *abfd, |
6435 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
252b5132 | 6436 | { |
3d540e93 | 6437 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6438 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6439 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6440 | |
6441 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6442 | |
2b0f7ef9 | 6443 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6444 | if (shstrtab == NULL) |
0a1b45a2 | 6445 | return false; |
252b5132 RH |
6446 | |
6447 | elf_shstrtab (abfd) = shstrtab; | |
6448 | ||
6449 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6450 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6451 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6452 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6453 | ||
6454 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6455 | i_ehdrp->e_ident[EI_DATA] = | |
6456 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6457 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6458 | ||
252b5132 RH |
6459 | if ((abfd->flags & DYNAMIC) != 0) |
6460 | i_ehdrp->e_type = ET_DYN; | |
6461 | else if ((abfd->flags & EXEC_P) != 0) | |
6462 | i_ehdrp->e_type = ET_EXEC; | |
6463 | else if (bfd_get_format (abfd) == bfd_core) | |
6464 | i_ehdrp->e_type = ET_CORE; | |
6465 | else | |
6466 | i_ehdrp->e_type = ET_REL; | |
6467 | ||
6468 | switch (bfd_get_arch (abfd)) | |
6469 | { | |
6470 | case bfd_arch_unknown: | |
6471 | i_ehdrp->e_machine = EM_NONE; | |
6472 | break; | |
aa4f99bb AO |
6473 | |
6474 | /* There used to be a long list of cases here, each one setting | |
6475 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6476 | in the corresponding bfd definition. To avoid duplication, | |
6477 | the switch was removed. Machines that need special handling | |
6478 | can generally do it in elf_backend_final_write_processing(), | |
6479 | unless they need the information earlier than the final write. | |
6480 | Such need can generally be supplied by replacing the tests for | |
6481 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6482 | default: |
9c5bfbb7 AM |
6483 | i_ehdrp->e_machine = bed->elf_machine_code; |
6484 | } | |
aa4f99bb | 6485 | |
252b5132 RH |
6486 | i_ehdrp->e_version = bed->s->ev_current; |
6487 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6488 | ||
c044fabd | 6489 | /* No program header, for now. */ |
252b5132 RH |
6490 | i_ehdrp->e_phoff = 0; |
6491 | i_ehdrp->e_phentsize = 0; | |
6492 | i_ehdrp->e_phnum = 0; | |
6493 | ||
c044fabd | 6494 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6495 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6496 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6497 | ||
252b5132 | 6498 | elf_tdata (abfd)->symtab_hdr.sh_name = |
0a1b45a2 | 6499 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", false); |
252b5132 | 6500 | elf_tdata (abfd)->strtab_hdr.sh_name = |
0a1b45a2 | 6501 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", false); |
252b5132 | 6502 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
0a1b45a2 | 6503 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", false); |
252b5132 | 6504 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6505 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6506 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
0a1b45a2 | 6507 | return false; |
252b5132 | 6508 | |
0a1b45a2 | 6509 | return true; |
252b5132 RH |
6510 | } |
6511 | ||
6d6c25c8 AM |
6512 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. |
6513 | ||
6514 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6515 | ascending order, as per the ELF spec. But this breaks some programs, | |
6516 | including the Linux kernel. But really either the spec should be | |
6517 | changed or the programs updated. */ | |
6518 | ||
0a1b45a2 | 6519 | bool |
6d6c25c8 AM |
6520 | _bfd_elf_modify_headers (bfd *obfd, struct bfd_link_info *link_info) |
6521 | { | |
6522 | if (link_info != NULL && bfd_link_pie (link_info)) | |
6523 | { | |
6524 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (obfd); | |
6525 | unsigned int num_segments = i_ehdrp->e_phnum; | |
6526 | struct elf_obj_tdata *tdata = elf_tdata (obfd); | |
6527 | Elf_Internal_Phdr *segment = tdata->phdr; | |
6528 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6529 | ||
6530 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6531 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6532 | for (; segment < end_segment; segment++) | |
6533 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6534 | p_vaddr = segment->p_vaddr; | |
6535 | ||
6536 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6537 | segments is non-zero. */ | |
6538 | if (p_vaddr) | |
6539 | i_ehdrp->e_type = ET_EXEC; | |
6540 | } | |
0a1b45a2 | 6541 | return true; |
6d6c25c8 AM |
6542 | } |
6543 | ||
252b5132 | 6544 | /* Assign file positions for all the reloc sections which are not part |
a485e98e | 6545 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6546 | |
0a1b45a2 | 6547 | static bool |
0ce398f1 | 6548 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) |
252b5132 RH |
6549 | { |
6550 | file_ptr off; | |
e06efbf1 | 6551 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6552 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6553 | Elf_Internal_Ehdr *i_ehdrp; |
6554 | const struct elf_backend_data *bed; | |
252b5132 | 6555 | |
12bd6957 | 6556 | off = elf_next_file_pos (abfd); |
252b5132 | 6557 | |
e06efbf1 L |
6558 | shdrpp = elf_elfsections (abfd); |
6559 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6560 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6561 | { |
252b5132 | 6562 | shdrp = *shdrpp; |
0ce398f1 L |
6563 | if (shdrp->sh_offset == -1) |
6564 | { | |
3e19fb8f | 6565 | asection *sec = shdrp->bfd_section; |
0a1b45a2 AM |
6566 | bool is_rel = (shdrp->sh_type == SHT_REL |
6567 | || shdrp->sh_type == SHT_RELA); | |
6568 | bool is_ctf = sec && bfd_section_is_ctf (sec); | |
0ce398f1 | 6569 | if (is_rel |
1ff6de03 | 6570 | || is_ctf |
3e19fb8f | 6571 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6572 | { |
1ff6de03 | 6573 | if (!is_rel && !is_ctf) |
0ce398f1 | 6574 | { |
3e19fb8f L |
6575 | const char *name = sec->name; |
6576 | struct bfd_elf_section_data *d; | |
6577 | ||
0ce398f1 | 6578 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6579 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 | 6580 | shdrp->contents)) |
0a1b45a2 | 6581 | return false; |
3e19fb8f L |
6582 | |
6583 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6584 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6585 | { | |
6586 | /* If section is compressed with zlib-gnu, convert | |
6587 | section name from .debug_* to .zdebug_*. */ | |
6588 | char *new_name | |
6589 | = convert_debug_to_zdebug (abfd, name); | |
6590 | if (new_name == NULL) | |
0a1b45a2 | 6591 | return false; |
3e19fb8f L |
6592 | name = new_name; |
6593 | } | |
dd905818 | 6594 | /* Add section name to section name section. */ |
3e19fb8f L |
6595 | if (shdrp->sh_name != (unsigned int) -1) |
6596 | abort (); | |
6597 | shdrp->sh_name | |
6598 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
0a1b45a2 | 6599 | name, false); |
3e19fb8f L |
6600 | d = elf_section_data (sec); |
6601 | ||
dd905818 | 6602 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6603 | if (d->rel.hdr |
6604 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6605 | d->rel.hdr, | |
0a1b45a2 AM |
6606 | name, false)) |
6607 | return false; | |
3e19fb8f L |
6608 | if (d->rela.hdr |
6609 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6610 | d->rela.hdr, | |
0a1b45a2 AM |
6611 | name, true)) |
6612 | return false; | |
3e19fb8f | 6613 | |
0ce398f1 | 6614 | /* Update section size and contents. */ |
3e19fb8f L |
6615 | shdrp->sh_size = sec->size; |
6616 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6617 | shdrp->bfd_section->contents = NULL; |
6618 | } | |
1ff6de03 NA |
6619 | else if (is_ctf) |
6620 | { | |
6621 | /* Update section size and contents. */ | |
6622 | shdrp->sh_size = sec->size; | |
6623 | shdrp->contents = sec->contents; | |
6624 | } | |
6625 | ||
0ce398f1 L |
6626 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6627 | off, | |
0a1b45a2 | 6628 | true); |
0ce398f1 L |
6629 | } |
6630 | } | |
252b5132 RH |
6631 | } |
6632 | ||
3e19fb8f L |
6633 | /* Place section name section after DWARF debug sections have been |
6634 | compressed. */ | |
6635 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6636 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6637 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
0a1b45a2 | 6638 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, true); |
3e19fb8f L |
6639 | |
6640 | /* Place the section headers. */ | |
a485e98e AM |
6641 | i_ehdrp = elf_elfheader (abfd); |
6642 | bed = get_elf_backend_data (abfd); | |
6643 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6644 | i_ehdrp->e_shoff = off; | |
6645 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6646 | elf_next_file_pos (abfd) = off; |
0ce398f1 | 6647 | |
0a1b45a2 | 6648 | return true; |
252b5132 RH |
6649 | } |
6650 | ||
0a1b45a2 | 6651 | bool |
217aa764 | 6652 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6653 | { |
9c5bfbb7 | 6654 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6655 | Elf_Internal_Shdr **i_shdrp; |
0a1b45a2 | 6656 | bool failed; |
9ad5cbcf | 6657 | unsigned int count, num_sec; |
30e8ee25 | 6658 | struct elf_obj_tdata *t; |
252b5132 RH |
6659 | |
6660 | if (! abfd->output_has_begun | |
217aa764 | 6661 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
0a1b45a2 | 6662 | return false; |
db727370 JL |
6663 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6664 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6665 | sections, and modification of existing section sizes was restricted. | |
6666 | This means the ELF header, program headers and section headers can't have | |
6667 | changed. | |
6668 | If the contents of any sections has been modified, then those changes have | |
6669 | already been written to the BFD. */ | |
6670 | else if (abfd->direction == both_direction) | |
6671 | { | |
6672 | BFD_ASSERT (abfd->output_has_begun); | |
0a1b45a2 | 6673 | return true; |
db727370 | 6674 | } |
252b5132 RH |
6675 | |
6676 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6677 | |
0a1b45a2 | 6678 | failed = false; |
252b5132 RH |
6679 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6680 | if (failed) | |
0a1b45a2 | 6681 | return false; |
252b5132 | 6682 | |
0ce398f1 | 6683 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
0a1b45a2 | 6684 | return false; |
252b5132 | 6685 | |
c044fabd | 6686 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6687 | num_sec = elf_numsections (abfd); |
6688 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6689 | { |
3e19fb8f L |
6690 | i_shdrp[count]->sh_name |
6691 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6692 | i_shdrp[count]->sh_name); | |
252b5132 | 6693 | if (bed->elf_backend_section_processing) |
75506100 | 6694 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
0a1b45a2 | 6695 | return false; |
252b5132 RH |
6696 | if (i_shdrp[count]->contents) |
6697 | { | |
dc810e39 AM |
6698 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6699 | ||
252b5132 | 6700 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6701 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
0a1b45a2 | 6702 | return false; |
252b5132 RH |
6703 | } |
6704 | } | |
6705 | ||
6706 | /* Write out the section header names. */ | |
30e8ee25 | 6707 | t = elf_tdata (abfd); |
26ae6d5e | 6708 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6709 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6710 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
0a1b45a2 | 6711 | return false; |
252b5132 | 6712 | |
cc364be6 | 6713 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
0a1b45a2 | 6714 | return false; |
252b5132 | 6715 | |
ff59fc36 | 6716 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
0a1b45a2 | 6717 | return false; |
ff59fc36 RM |
6718 | |
6719 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6720 | if (t->o->build_id.after_write_object_contents != NULL) |
6721 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 | 6722 | |
0a1b45a2 | 6723 | return true; |
252b5132 RH |
6724 | } |
6725 | ||
0a1b45a2 | 6726 | bool |
217aa764 | 6727 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6728 | { |
c044fabd | 6729 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6730 | return _bfd_elf_write_object_contents (abfd); |
6731 | } | |
c044fabd KH |
6732 | |
6733 | /* Given a section, search the header to find them. */ | |
6734 | ||
cb33740c | 6735 | unsigned int |
198beae2 | 6736 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6737 | { |
9c5bfbb7 | 6738 | const struct elf_backend_data *bed; |
91d6fa6a | 6739 | unsigned int sec_index; |
252b5132 | 6740 | |
9ad5cbcf AM |
6741 | if (elf_section_data (asect) != NULL |
6742 | && elf_section_data (asect)->this_idx != 0) | |
6743 | return elf_section_data (asect)->this_idx; | |
6744 | ||
6745 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6746 | sec_index = SHN_ABS; |
af746e92 | 6747 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6748 | sec_index = SHN_COMMON; |
af746e92 | 6749 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6750 | sec_index = SHN_UNDEF; |
af746e92 | 6751 | else |
91d6fa6a | 6752 | sec_index = SHN_BAD; |
252b5132 | 6753 | |
af746e92 | 6754 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6755 | if (bed->elf_backend_section_from_bfd_section) |
6756 | { | |
91d6fa6a | 6757 | int retval = sec_index; |
9ad5cbcf | 6758 | |
af746e92 AM |
6759 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6760 | return retval; | |
252b5132 RH |
6761 | } |
6762 | ||
91d6fa6a | 6763 | if (sec_index == SHN_BAD) |
af746e92 | 6764 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6765 | |
91d6fa6a | 6766 | return sec_index; |
252b5132 RH |
6767 | } |
6768 | ||
6769 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6770 | on error. */ | |
6771 | ||
6772 | int | |
217aa764 | 6773 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6774 | { |
6775 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6776 | int idx; | |
6777 | flagword flags = asym_ptr->flags; | |
6778 | ||
6779 | /* When gas creates relocations against local labels, it creates its | |
6780 | own symbol for the section, but does put the symbol into the | |
6781 | symbol chain, so udata is 0. When the linker is generating | |
6782 | relocatable output, this section symbol may be for one of the | |
6783 | input sections rather than the output section. */ | |
6784 | if (asym_ptr->udata.i == 0 | |
6785 | && (flags & BSF_SECTION_SYM) | |
6786 | && asym_ptr->section) | |
6787 | { | |
5372391b | 6788 | asection *sec; |
252b5132 RH |
6789 | int indx; |
6790 | ||
5372391b AM |
6791 | sec = asym_ptr->section; |
6792 | if (sec->owner != abfd && sec->output_section != NULL) | |
6793 | sec = sec->output_section; | |
6794 | if (sec->owner == abfd | |
6795 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6796 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6797 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6798 | } | |
6799 | ||
6800 | idx = asym_ptr->udata.i; | |
6801 | ||
6802 | if (idx == 0) | |
6803 | { | |
6804 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6805 | which is used in a relocation entry. */ |
4eca0228 | 6806 | _bfd_error_handler |
695344c0 | 6807 | /* xgettext:c-format */ |
871b3ab2 | 6808 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6809 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6810 | bfd_set_error (bfd_error_no_symbols); |
6811 | return -1; | |
6812 | } | |
6813 | ||
6814 | #if DEBUG & 4 | |
6815 | { | |
6816 | fprintf (stderr, | |
cd9af601 AM |
6817 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6818 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6819 | fflush (stderr); |
6820 | } | |
6821 | #endif | |
6822 | ||
6823 | return idx; | |
6824 | } | |
6825 | ||
84d1d650 | 6826 | /* Rewrite program header information. */ |
252b5132 | 6827 | |
0a1b45a2 | 6828 | static bool |
c410035d | 6829 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd, bfd_vma maxpagesize) |
252b5132 | 6830 | { |
b34976b6 AM |
6831 | Elf_Internal_Ehdr *iehdr; |
6832 | struct elf_segment_map *map; | |
6833 | struct elf_segment_map *map_first; | |
6834 | struct elf_segment_map **pointer_to_map; | |
6835 | Elf_Internal_Phdr *segment; | |
6836 | asection *section; | |
6837 | unsigned int i; | |
6838 | unsigned int num_segments; | |
0a1b45a2 AM |
6839 | bool phdr_included = false; |
6840 | bool p_paddr_valid; | |
b34976b6 AM |
6841 | struct elf_segment_map *phdr_adjust_seg = NULL; |
6842 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6843 | const struct elf_backend_data *bed; |
502794d4 | 6844 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
bc67d8a6 | 6845 | |
caf47ea6 | 6846 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6847 | iehdr = elf_elfheader (ibfd); |
6848 | ||
bc67d8a6 | 6849 | map_first = NULL; |
c044fabd | 6850 | pointer_to_map = &map_first; |
252b5132 RH |
6851 | |
6852 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6853 | |
6854 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6855 | #define SEGMENT_END(segment, start) \ |
6856 | (start + (segment->p_memsz > segment->p_filesz \ | |
6857 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6858 | |
eecdbe52 JJ |
6859 | #define SECTION_SIZE(section, segment) \ |
6860 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6861 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6862 | ? section->size : 0) |
eecdbe52 | 6863 | |
b34976b6 | 6864 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6865 | the given segment. VMA addresses are compared. */ |
502794d4 CE |
6866 | #define IS_CONTAINED_BY_VMA(section, segment, opb) \ |
6867 | (section->vma * (opb) >= segment->p_vaddr \ | |
6868 | && (section->vma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6869 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6870 | |
b34976b6 | 6871 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6872 | the given segment. LMA addresses are compared. */ |
502794d4 CE |
6873 | #define IS_CONTAINED_BY_LMA(section, segment, base, opb) \ |
6874 | (section->lma * (opb) >= base \ | |
6875 | && (section->lma + SECTION_SIZE (section, segment) / (opb) >= section->lma) \ | |
6876 | && (section->lma * (opb) + SECTION_SIZE (section, segment) \ | |
aecc8f8a | 6877 | <= SEGMENT_END (segment, base))) |
252b5132 | 6878 | |
0efc80c8 L |
6879 | /* Handle PT_NOTE segment. */ |
6880 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6881 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6882 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6883 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6884 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6885 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6886 | |
0efc80c8 L |
6887 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6888 | etc. */ | |
6889 | #define IS_COREFILE_NOTE(p, s) \ | |
6890 | (IS_NOTE (p, s) \ | |
6891 | && bfd_get_format (ibfd) == bfd_core \ | |
6892 | && s->vma == 0 \ | |
6893 | && s->lma == 0) | |
6894 | ||
252b5132 RH |
6895 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6896 | linker, which generates a PT_INTERP section with p_vaddr and | |
6897 | p_memsz set to 0. */ | |
aecc8f8a AM |
6898 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6899 | (p->p_vaddr == 0 \ | |
6900 | && p->p_paddr == 0 \ | |
6901 | && p->p_memsz == 0 \ | |
6902 | && p->p_filesz > 0 \ | |
6903 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6904 | && s->size > 0 \ |
aecc8f8a | 6905 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6906 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6907 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6908 | |
bc67d8a6 NC |
6909 | /* Decide if the given section should be included in the given segment. |
6910 | A section will be included if: | |
f5ffc919 | 6911 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6912 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6913 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6914 | segment. |
bc67d8a6 | 6915 | 3. There is an output section associated with it, |
eecdbe52 | 6916 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6917 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6918 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6919 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6920 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6921 | (with the possible exception of .dynamic). */ |
502794d4 | 6922 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed, opb) \ |
2b05f1b7 | 6923 | ((((segment->p_paddr \ |
502794d4 CE |
6924 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr, opb) \ |
6925 | : IS_CONTAINED_BY_VMA (section, segment, opb)) \ | |
2b05f1b7 | 6926 | && (section->flags & SEC_ALLOC) != 0) \ |
0efc80c8 | 6927 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6928 | && segment->p_type != PT_GNU_STACK \ |
6929 | && (segment->p_type != PT_TLS \ | |
6930 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6931 | && (segment->p_type == PT_LOAD \ | |
6932 | || segment->p_type == PT_TLS \ | |
6933 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6934 | && (segment->p_type != PT_DYNAMIC \ | |
6935 | || SECTION_SIZE (section, segment) > 0 \ | |
6936 | || (segment->p_paddr \ | |
502794d4 CE |
6937 | ? segment->p_paddr != section->lma * (opb) \ |
6938 | : segment->p_vaddr != section->vma * (opb)) \ | |
fd361982 | 6939 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6940 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6941 | |
9f17e2a6 L |
6942 | /* If the output section of a section in the input segment is NULL, |
6943 | it is removed from the corresponding output segment. */ | |
502794d4 CE |
6944 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed, opb) \ |
6945 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb) \ | |
9f17e2a6 L |
6946 | && section->output_section != NULL) |
6947 | ||
b34976b6 | 6948 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6949 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6950 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6951 | ||
6952 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6953 | their VMA address ranges and their LMA address ranges overlap. | |
6954 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6955 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6956 | to the same VMA range, but with the .data section mapped to a different | |
6957 | LMA. */ | |
aecc8f8a | 6958 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6959 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6960 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6961 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6962 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6963 | |
6964 | /* Initialise the segment mark field. */ | |
6965 | for (section = ibfd->sections; section != NULL; section = section->next) | |
0a1b45a2 | 6966 | section->segment_mark = false; |
bc67d8a6 | 6967 | |
5c44b38e AM |
6968 | /* The Solaris linker creates program headers in which all the |
6969 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6970 | file, we get confused. Check for this case, and if we find it | |
6971 | don't set the p_paddr_valid fields. */ | |
0a1b45a2 | 6972 | p_paddr_valid = false; |
5c44b38e AM |
6973 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6974 | i < num_segments; | |
6975 | i++, segment++) | |
6976 | if (segment->p_paddr != 0) | |
6977 | { | |
0a1b45a2 | 6978 | p_paddr_valid = true; |
5c44b38e AM |
6979 | break; |
6980 | } | |
6981 | ||
252b5132 | 6982 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6983 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6984 | in the loadable segments. These can be created by weird |
aecc8f8a | 6985 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6986 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6987 | i < num_segments; | |
c044fabd | 6988 | i++, segment++) |
252b5132 | 6989 | { |
252b5132 | 6990 | unsigned int j; |
c044fabd | 6991 | Elf_Internal_Phdr *segment2; |
252b5132 | 6992 | |
aecc8f8a AM |
6993 | if (segment->p_type == PT_INTERP) |
6994 | for (section = ibfd->sections; section; section = section->next) | |
6995 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6996 | { | |
6997 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6998 | assignment code will work. */ |
502794d4 | 6999 | segment->p_vaddr = section->vma * opb; |
aecc8f8a AM |
7000 | break; |
7001 | } | |
7002 | ||
bc67d8a6 | 7003 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
7004 | { |
7005 | /* Remove PT_GNU_RELRO segment. */ | |
7006 | if (segment->p_type == PT_GNU_RELRO) | |
7007 | segment->p_type = PT_NULL; | |
7008 | continue; | |
7009 | } | |
c044fabd | 7010 | |
bc67d8a6 | 7011 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 7012 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
7013 | { |
7014 | bfd_signed_vma extra_length; | |
c044fabd | 7015 | |
bc67d8a6 | 7016 | if (segment2->p_type != PT_LOAD |
0067a569 | 7017 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 7018 | continue; |
c044fabd | 7019 | |
bc67d8a6 NC |
7020 | /* Merge the two segments together. */ |
7021 | if (segment2->p_vaddr < segment->p_vaddr) | |
7022 | { | |
c044fabd | 7023 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 7024 | SEGMENT. */ |
0067a569 AM |
7025 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
7026 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 7027 | |
bc67d8a6 NC |
7028 | if (extra_length > 0) |
7029 | { | |
0067a569 | 7030 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
7031 | segment2->p_filesz += extra_length; |
7032 | } | |
c044fabd | 7033 | |
bc67d8a6 | 7034 | segment->p_type = PT_NULL; |
c044fabd | 7035 | |
bc67d8a6 NC |
7036 | /* Since we have deleted P we must restart the outer loop. */ |
7037 | i = 0; | |
7038 | segment = elf_tdata (ibfd)->phdr; | |
7039 | break; | |
7040 | } | |
7041 | else | |
7042 | { | |
c044fabd | 7043 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 7044 | SEGMENT2. */ |
0067a569 AM |
7045 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
7046 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 7047 | |
bc67d8a6 NC |
7048 | if (extra_length > 0) |
7049 | { | |
0067a569 | 7050 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7051 | segment->p_filesz += extra_length; |
7052 | } | |
c044fabd | 7053 | |
bc67d8a6 NC |
7054 | segment2->p_type = PT_NULL; |
7055 | } | |
7056 | } | |
7057 | } | |
c044fabd | 7058 | |
bc67d8a6 NC |
7059 | /* The second scan attempts to assign sections to segments. */ |
7060 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7061 | i < num_segments; | |
0067a569 | 7062 | i++, segment++) |
bc67d8a6 | 7063 | { |
0067a569 AM |
7064 | unsigned int section_count; |
7065 | asection **sections; | |
7066 | asection *output_section; | |
7067 | unsigned int isec; | |
9933dc52 AM |
7068 | asection *matching_lma; |
7069 | asection *suggested_lma; | |
0067a569 | 7070 | unsigned int j; |
446f7ed5 | 7071 | size_t amt; |
0067a569 | 7072 | asection *first_section; |
bc67d8a6 NC |
7073 | |
7074 | if (segment->p_type == PT_NULL) | |
7075 | continue; | |
c044fabd | 7076 | |
9f17e2a6 | 7077 | first_section = NULL; |
bc67d8a6 | 7078 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7079 | for (section = ibfd->sections, section_count = 0; |
7080 | section != NULL; | |
7081 | section = section->next) | |
9f17e2a6 L |
7082 | { |
7083 | /* Find the first section in the input segment, which may be | |
7084 | removed from the corresponding output segment. */ | |
502794d4 | 7085 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed, opb)) |
9f17e2a6 L |
7086 | { |
7087 | if (first_section == NULL) | |
7088 | first_section = section; | |
7089 | if (section->output_section != NULL) | |
7090 | ++section_count; | |
7091 | } | |
7092 | } | |
811072d8 | 7093 | |
b5f852ea NC |
7094 | /* Allocate a segment map big enough to contain |
7095 | all of the sections we have selected. */ | |
00bee008 | 7096 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7097 | amt += section_count * sizeof (asection *); |
a50b1753 | 7098 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7099 | if (map == NULL) |
0a1b45a2 | 7100 | return false; |
252b5132 RH |
7101 | |
7102 | /* Initialise the fields of the segment map. Default to | |
7103 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7104 | map->next = NULL; |
7105 | map->p_type = segment->p_type; | |
7106 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7107 | map->p_flags_valid = 1; |
55d55ac7 | 7108 | |
c410035d AM |
7109 | if (map->p_type == PT_LOAD |
7110 | && (ibfd->flags & D_PAGED) != 0 | |
7111 | && maxpagesize > 1 | |
7112 | && segment->p_align > 1) | |
7113 | { | |
7114 | map->p_align = segment->p_align; | |
7115 | if (segment->p_align > maxpagesize) | |
7116 | map->p_align = maxpagesize; | |
7117 | map->p_align_valid = 1; | |
7118 | } | |
7119 | ||
9f17e2a6 L |
7120 | /* If the first section in the input segment is removed, there is |
7121 | no need to preserve segment physical address in the corresponding | |
7122 | output segment. */ | |
945c025a | 7123 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7124 | { |
7125 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7126 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7127 | } |
252b5132 RH |
7128 | |
7129 | /* Determine if this segment contains the ELF file header | |
7130 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7131 | map->includes_filehdr = (segment->p_offset == 0 |
7132 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7133 | map->includes_phdrs = 0; |
252b5132 | 7134 | |
0067a569 | 7135 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7136 | { |
bc67d8a6 NC |
7137 | map->includes_phdrs = |
7138 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7139 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7140 | >= ((bfd_vma) iehdr->e_phoff |
7141 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7142 | |
bc67d8a6 | 7143 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
0a1b45a2 | 7144 | phdr_included = true; |
252b5132 RH |
7145 | } |
7146 | ||
bc67d8a6 | 7147 | if (section_count == 0) |
252b5132 RH |
7148 | { |
7149 | /* Special segments, such as the PT_PHDR segment, may contain | |
7150 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7151 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7152 | a warning is produced. |
f98450c6 NC |
7153 | There is however the valid use case of embedded systems which |
7154 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7155 | flash memory with zeros. No warning is shown for that case. */ | |
7156 | if (segment->p_type == PT_LOAD | |
7157 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7158 | /* xgettext:c-format */ | |
9793eb77 AM |
7159 | _bfd_error_handler |
7160 | (_("%pB: warning: empty loadable segment detected" | |
7161 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7162 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7163 | |
502794d4 | 7164 | map->p_vaddr_offset = segment->p_vaddr / opb; |
bc67d8a6 | 7165 | map->count = 0; |
c044fabd KH |
7166 | *pointer_to_map = map; |
7167 | pointer_to_map = &map->next; | |
252b5132 RH |
7168 | |
7169 | continue; | |
7170 | } | |
7171 | ||
7172 | /* Now scan the sections in the input BFD again and attempt | |
7173 | to add their corresponding output sections to the segment map. | |
7174 | The problem here is how to handle an output section which has | |
7175 | been moved (ie had its LMA changed). There are four possibilities: | |
7176 | ||
7177 | 1. None of the sections have been moved. | |
7178 | In this case we can continue to use the segment LMA from the | |
7179 | input BFD. | |
7180 | ||
7181 | 2. All of the sections have been moved by the same amount. | |
7182 | In this case we can change the segment's LMA to match the LMA | |
7183 | of the first section. | |
7184 | ||
7185 | 3. Some of the sections have been moved, others have not. | |
7186 | In this case those sections which have not been moved can be | |
7187 | placed in the current segment which will have to have its size, | |
7188 | and possibly its LMA changed, and a new segment or segments will | |
7189 | have to be created to contain the other sections. | |
7190 | ||
b5f852ea | 7191 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7192 | In this case we can change the segment's LMA to match the LMA |
7193 | of the first section and we will have to create a new segment | |
7194 | or segments to contain the other sections. | |
7195 | ||
7196 | In order to save time, we allocate an array to hold the section | |
7197 | pointers that we are interested in. As these sections get assigned | |
7198 | to a segment, they are removed from this array. */ | |
7199 | ||
446f7ed5 AM |
7200 | amt = section_count * sizeof (asection *); |
7201 | sections = (asection **) bfd_malloc (amt); | |
252b5132 | 7202 | if (sections == NULL) |
0a1b45a2 | 7203 | return false; |
252b5132 RH |
7204 | |
7205 | /* Step One: Scan for segment vs section LMA conflicts. | |
7206 | Also add the sections to the section array allocated above. | |
7207 | Also add the sections to the current segment. In the common | |
7208 | case, where the sections have not been moved, this means that | |
7209 | we have completely filled the segment, and there is nothing | |
7210 | more to do. */ | |
252b5132 | 7211 | isec = 0; |
9933dc52 AM |
7212 | matching_lma = NULL; |
7213 | suggested_lma = NULL; | |
252b5132 | 7214 | |
461c4b2e | 7215 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7216 | section != NULL; |
7217 | section = section->next) | |
252b5132 | 7218 | { |
502794d4 | 7219 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed, opb)) |
c0f7859b | 7220 | { |
bc67d8a6 NC |
7221 | output_section = section->output_section; |
7222 | ||
0067a569 | 7223 | sections[j++] = section; |
252b5132 RH |
7224 | |
7225 | /* The Solaris native linker always sets p_paddr to 0. | |
7226 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7227 | correct value. Note - some backends require that |
7228 | p_paddr be left as zero. */ | |
5c44b38e | 7229 | if (!p_paddr_valid |
4455705d | 7230 | && segment->p_vaddr != 0 |
0067a569 | 7231 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7232 | && isec == 0 |
bc67d8a6 | 7233 | && output_section->lma != 0 |
9933dc52 AM |
7234 | && (align_power (segment->p_vaddr |
7235 | + (map->includes_filehdr | |
7236 | ? iehdr->e_ehsize : 0) | |
7237 | + (map->includes_phdrs | |
7238 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7239 | : 0), | |
66631823 CE |
7240 | output_section->alignment_power * opb) |
7241 | == (output_section->vma * opb))) | |
bc67d8a6 | 7242 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7243 | |
7244 | /* Match up the physical address of the segment with the | |
7245 | LMA address of the output section. */ | |
502794d4 CE |
7246 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7247 | opb) | |
5e8d7549 | 7248 | || IS_COREFILE_NOTE (segment, section) |
0067a569 | 7249 | || (bed->want_p_paddr_set_to_zero |
502794d4 | 7250 | && IS_CONTAINED_BY_VMA (output_section, segment, opb))) |
252b5132 | 7251 | { |
9933dc52 AM |
7252 | if (matching_lma == NULL |
7253 | || output_section->lma < matching_lma->lma) | |
7254 | matching_lma = output_section; | |
252b5132 RH |
7255 | |
7256 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7257 | then it does not overlap any other section within that |
252b5132 | 7258 | segment. */ |
0067a569 AM |
7259 | map->sections[isec++] = output_section; |
7260 | } | |
9933dc52 AM |
7261 | else if (suggested_lma == NULL) |
7262 | suggested_lma = output_section; | |
147d51c2 L |
7263 | |
7264 | if (j == section_count) | |
7265 | break; | |
252b5132 RH |
7266 | } |
7267 | } | |
7268 | ||
bc67d8a6 | 7269 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7270 | |
7271 | /* Step Two: Adjust the physical address of the current segment, | |
7272 | if necessary. */ | |
bc67d8a6 | 7273 | if (isec == section_count) |
252b5132 RH |
7274 | { |
7275 | /* All of the sections fitted within the segment as currently | |
7276 | specified. This is the default case. Add the segment to | |
7277 | the list of built segments and carry on to process the next | |
7278 | program header in the input BFD. */ | |
bc67d8a6 | 7279 | map->count = section_count; |
c044fabd KH |
7280 | *pointer_to_map = map; |
7281 | pointer_to_map = &map->next; | |
08a40648 | 7282 | |
5c44b38e | 7283 | if (p_paddr_valid |
30fe1832 AM |
7284 | && !bed->want_p_paddr_set_to_zero) |
7285 | { | |
7286 | bfd_vma hdr_size = 0; | |
7287 | if (map->includes_filehdr) | |
7288 | hdr_size = iehdr->e_ehsize; | |
7289 | if (map->includes_phdrs) | |
7290 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7291 | ||
7292 | /* Account for padding before the first section in the | |
7293 | segment. */ | |
502794d4 CE |
7294 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
7295 | - matching_lma->lma); | |
30fe1832 | 7296 | } |
08a40648 | 7297 | |
252b5132 RH |
7298 | free (sections); |
7299 | continue; | |
7300 | } | |
252b5132 RH |
7301 | else |
7302 | { | |
9933dc52 AM |
7303 | /* Change the current segment's physical address to match |
7304 | the LMA of the first section that fitted, or if no | |
7305 | section fitted, the first section. */ | |
7306 | if (matching_lma == NULL) | |
7307 | matching_lma = suggested_lma; | |
7308 | ||
66631823 | 7309 | map->p_paddr = matching_lma->lma * opb; |
72730e0c | 7310 | |
bc67d8a6 NC |
7311 | /* Offset the segment physical address from the lma |
7312 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7313 | if (map->includes_phdrs) |
010c8431 | 7314 | { |
9933dc52 AM |
7315 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7316 | ||
7317 | /* iehdr->e_phnum is just an estimate of the number | |
7318 | of program headers that we will need. Make a note | |
7319 | here of the number we used and the segment we chose | |
7320 | to hold these headers, so that we can adjust the | |
7321 | offset when we know the correct value. */ | |
7322 | phdr_adjust_num = iehdr->e_phnum; | |
7323 | phdr_adjust_seg = map; | |
010c8431 | 7324 | } |
252b5132 | 7325 | |
9933dc52 | 7326 | if (map->includes_filehdr) |
bc67d8a6 | 7327 | { |
9933dc52 AM |
7328 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7329 | map->p_paddr -= iehdr->e_ehsize; | |
7330 | /* We've subtracted off the size of headers from the | |
7331 | first section lma, but there may have been some | |
7332 | alignment padding before that section too. Try to | |
7333 | account for that by adjusting the segment lma down to | |
7334 | the same alignment. */ | |
7335 | if (segment->p_align != 0 && segment->p_align < align) | |
7336 | align = segment->p_align; | |
66631823 | 7337 | map->p_paddr &= -(align * opb); |
bc67d8a6 | 7338 | } |
252b5132 RH |
7339 | } |
7340 | ||
7341 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7342 | those that fit to the current segment and removing them from the |
252b5132 RH |
7343 | sections array; but making sure not to leave large gaps. Once all |
7344 | possible sections have been assigned to the current segment it is | |
7345 | added to the list of built segments and if sections still remain | |
7346 | to be assigned, a new segment is constructed before repeating | |
7347 | the loop. */ | |
7348 | isec = 0; | |
7349 | do | |
7350 | { | |
bc67d8a6 | 7351 | map->count = 0; |
9933dc52 | 7352 | suggested_lma = NULL; |
252b5132 RH |
7353 | |
7354 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7355 | for (j = 0; j < section_count; j++) |
252b5132 | 7356 | { |
bc67d8a6 | 7357 | section = sections[j]; |
252b5132 | 7358 | |
bc67d8a6 | 7359 | if (section == NULL) |
252b5132 RH |
7360 | continue; |
7361 | ||
bc67d8a6 | 7362 | output_section = section->output_section; |
252b5132 | 7363 | |
bc67d8a6 | 7364 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7365 | |
502794d4 CE |
7366 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr, |
7367 | opb) | |
bc67d8a6 | 7368 | || IS_COREFILE_NOTE (segment, section)) |
252b5132 | 7369 | { |
bc67d8a6 | 7370 | if (map->count == 0) |
252b5132 RH |
7371 | { |
7372 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7373 | the beginning of the segment, then something is |
7374 | wrong. */ | |
9933dc52 AM |
7375 | if (align_power (map->p_paddr |
7376 | + (map->includes_filehdr | |
7377 | ? iehdr->e_ehsize : 0) | |
7378 | + (map->includes_phdrs | |
7379 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7380 | : 0), | |
66631823 CE |
7381 | output_section->alignment_power * opb) |
7382 | != output_section->lma * opb) | |
9aea1e31 | 7383 | goto sorry; |
252b5132 RH |
7384 | } |
7385 | else | |
7386 | { | |
0067a569 | 7387 | asection *prev_sec; |
252b5132 | 7388 | |
bc67d8a6 | 7389 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7390 | |
7391 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7392 | and the start of this section is more than |
7393 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7394 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7395 | maxpagesize) |
caf47ea6 | 7396 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7397 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7398 | > output_section->lma)) |
252b5132 | 7399 | { |
9933dc52 AM |
7400 | if (suggested_lma == NULL) |
7401 | suggested_lma = output_section; | |
252b5132 RH |
7402 | |
7403 | continue; | |
7404 | } | |
7405 | } | |
7406 | ||
bc67d8a6 | 7407 | map->sections[map->count++] = output_section; |
252b5132 RH |
7408 | ++isec; |
7409 | sections[j] = NULL; | |
9933dc52 | 7410 | if (segment->p_type == PT_LOAD) |
0a1b45a2 | 7411 | section->segment_mark = true; |
0067a569 | 7412 | } |
9933dc52 AM |
7413 | else if (suggested_lma == NULL) |
7414 | suggested_lma = output_section; | |
252b5132 RH |
7415 | } |
7416 | ||
beab4532 NC |
7417 | /* PR 23932. A corrupt input file may contain sections that cannot |
7418 | be assigned to any segment - because for example they have a | |
9984857c NC |
7419 | negative size - or segments that do not contain any sections. |
7420 | But there are also valid reasons why a segment can be empty. | |
7421 | So allow a count of zero. */ | |
252b5132 RH |
7422 | |
7423 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7424 | *pointer_to_map = map; |
7425 | pointer_to_map = &map->next; | |
252b5132 | 7426 | |
bc67d8a6 | 7427 | if (isec < section_count) |
252b5132 RH |
7428 | { |
7429 | /* We still have not allocated all of the sections to | |
7430 | segments. Create a new segment here, initialise it | |
7431 | and carry on looping. */ | |
00bee008 | 7432 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
446f7ed5 | 7433 | amt += section_count * sizeof (asection *); |
5964fc3a | 7434 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7435 | if (map == NULL) |
5ed6aba4 NC |
7436 | { |
7437 | free (sections); | |
0a1b45a2 | 7438 | return false; |
5ed6aba4 | 7439 | } |
252b5132 RH |
7440 | |
7441 | /* Initialise the fields of the segment map. Set the physical | |
7442 | physical address to the LMA of the first section that has | |
7443 | not yet been assigned. */ | |
0067a569 AM |
7444 | map->next = NULL; |
7445 | map->p_type = segment->p_type; | |
7446 | map->p_flags = segment->p_flags; | |
7447 | map->p_flags_valid = 1; | |
66631823 | 7448 | map->p_paddr = suggested_lma->lma * opb; |
5c44b38e | 7449 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7450 | map->includes_filehdr = 0; |
0067a569 | 7451 | map->includes_phdrs = 0; |
252b5132 | 7452 | } |
9984857c NC |
7453 | |
7454 | continue; | |
7455 | sorry: | |
7456 | bfd_set_error (bfd_error_sorry); | |
7457 | free (sections); | |
0a1b45a2 | 7458 | return false; |
252b5132 | 7459 | } |
bc67d8a6 | 7460 | while (isec < section_count); |
252b5132 RH |
7461 | |
7462 | free (sections); | |
7463 | } | |
7464 | ||
12bd6957 | 7465 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7466 | |
7467 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7468 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7469 | the offset if necessary. */ |
7470 | if (phdr_adjust_seg != NULL) | |
7471 | { | |
7472 | unsigned int count; | |
c044fabd | 7473 | |
bc67d8a6 | 7474 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7475 | count++; |
252b5132 | 7476 | |
bc67d8a6 NC |
7477 | if (count > phdr_adjust_num) |
7478 | phdr_adjust_seg->p_paddr | |
7479 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7480 | |
7481 | for (map = map_first; map != NULL; map = map->next) | |
7482 | if (map->p_type == PT_PHDR) | |
7483 | { | |
7484 | bfd_vma adjust | |
7485 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7486 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7487 | break; | |
7488 | } | |
bc67d8a6 | 7489 | } |
c044fabd | 7490 | |
bc67d8a6 | 7491 | #undef SEGMENT_END |
eecdbe52 | 7492 | #undef SECTION_SIZE |
bc67d8a6 NC |
7493 | #undef IS_CONTAINED_BY_VMA |
7494 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7495 | #undef IS_NOTE |
252b5132 | 7496 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7497 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7498 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7499 | #undef INCLUDE_SECTION_IN_SEGMENT |
7500 | #undef SEGMENT_AFTER_SEGMENT | |
7501 | #undef SEGMENT_OVERLAPS | |
0a1b45a2 | 7502 | return true; |
252b5132 RH |
7503 | } |
7504 | ||
84d1d650 L |
7505 | /* Copy ELF program header information. */ |
7506 | ||
0a1b45a2 | 7507 | static bool |
84d1d650 L |
7508 | copy_elf_program_header (bfd *ibfd, bfd *obfd) |
7509 | { | |
7510 | Elf_Internal_Ehdr *iehdr; | |
7511 | struct elf_segment_map *map; | |
7512 | struct elf_segment_map *map_first; | |
7513 | struct elf_segment_map **pointer_to_map; | |
7514 | Elf_Internal_Phdr *segment; | |
7515 | unsigned int i; | |
7516 | unsigned int num_segments; | |
0a1b45a2 AM |
7517 | bool phdr_included = false; |
7518 | bool p_paddr_valid; | |
502794d4 | 7519 | unsigned int opb = bfd_octets_per_byte (ibfd, NULL); |
84d1d650 L |
7520 | |
7521 | iehdr = elf_elfheader (ibfd); | |
7522 | ||
7523 | map_first = NULL; | |
7524 | pointer_to_map = &map_first; | |
7525 | ||
88967714 AM |
7526 | /* If all the segment p_paddr fields are zero, don't set |
7527 | map->p_paddr_valid. */ | |
0a1b45a2 | 7528 | p_paddr_valid = false; |
84d1d650 | 7529 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7530 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7531 | i < num_segments; | |
7532 | i++, segment++) | |
7533 | if (segment->p_paddr != 0) | |
7534 | { | |
0a1b45a2 | 7535 | p_paddr_valid = true; |
88967714 AM |
7536 | break; |
7537 | } | |
7538 | ||
84d1d650 L |
7539 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7540 | i < num_segments; | |
7541 | i++, segment++) | |
7542 | { | |
7543 | asection *section; | |
7544 | unsigned int section_count; | |
986f0783 | 7545 | size_t amt; |
84d1d650 | 7546 | Elf_Internal_Shdr *this_hdr; |
53020534 | 7547 | asection *first_section = NULL; |
a76e6f2f | 7548 | asection *lowest_section; |
84d1d650 | 7549 | |
84d1d650 L |
7550 | /* Compute how many sections are in this segment. */ |
7551 | for (section = ibfd->sections, section_count = 0; | |
7552 | section != NULL; | |
7553 | section = section->next) | |
7554 | { | |
7555 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7556 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7557 | { |
a76e6f2f AM |
7558 | if (first_section == NULL) |
7559 | first_section = section; | |
3271a814 NS |
7560 | section_count++; |
7561 | } | |
84d1d650 L |
7562 | } |
7563 | ||
7564 | /* Allocate a segment map big enough to contain | |
7565 | all of the sections we have selected. */ | |
00bee008 | 7566 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
986f0783 | 7567 | amt += section_count * sizeof (asection *); |
a50b1753 | 7568 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 | 7569 | if (map == NULL) |
0a1b45a2 | 7570 | return false; |
84d1d650 L |
7571 | |
7572 | /* Initialize the fields of the output segment map with the | |
7573 | input segment. */ | |
7574 | map->next = NULL; | |
7575 | map->p_type = segment->p_type; | |
7576 | map->p_flags = segment->p_flags; | |
7577 | map->p_flags_valid = 1; | |
7578 | map->p_paddr = segment->p_paddr; | |
88967714 | 7579 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7580 | map->p_align = segment->p_align; |
7581 | map->p_align_valid = 1; | |
3271a814 | 7582 | map->p_vaddr_offset = 0; |
84d1d650 | 7583 | |
04c3a755 NS |
7584 | if (map->p_type == PT_GNU_RELRO |
7585 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7586 | { |
7587 | /* The PT_GNU_RELRO segment may contain the first a few | |
7588 | bytes in the .got.plt section even if the whole .got.plt | |
7589 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7590 | change the size of the PT_GNU_RELRO segment. |
7591 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7592 | systems. */ | |
9433b9b1 | 7593 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7594 | map->p_size_valid = 1; |
7595 | } | |
7596 | ||
84d1d650 L |
7597 | /* Determine if this segment contains the ELF file header |
7598 | and if it contains the program headers themselves. */ | |
7599 | map->includes_filehdr = (segment->p_offset == 0 | |
7600 | && segment->p_filesz >= iehdr->e_ehsize); | |
7601 | ||
7602 | map->includes_phdrs = 0; | |
7603 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7604 | { | |
7605 | map->includes_phdrs = | |
7606 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7607 | && (segment->p_offset + segment->p_filesz | |
7608 | >= ((bfd_vma) iehdr->e_phoff | |
7609 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7610 | ||
7611 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
0a1b45a2 | 7612 | phdr_included = true; |
84d1d650 L |
7613 | } |
7614 | ||
bbefd0a9 | 7615 | lowest_section = NULL; |
84d1d650 L |
7616 | if (section_count != 0) |
7617 | { | |
7618 | unsigned int isec = 0; | |
7619 | ||
53020534 | 7620 | for (section = first_section; |
84d1d650 L |
7621 | section != NULL; |
7622 | section = section->next) | |
7623 | { | |
7624 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7625 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7626 | { |
7627 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7628 | if ((section->flags & SEC_ALLOC) != 0) |
7629 | { | |
7630 | bfd_vma seg_off; | |
7631 | ||
bbefd0a9 AM |
7632 | if (lowest_section == NULL |
7633 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7634 | lowest_section = section; |
7635 | ||
a76e6f2f AM |
7636 | /* Section lmas are set up from PT_LOAD header |
7637 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7638 | If this header has a p_paddr that disagrees | |
7639 | with the section lma, flag the p_paddr as | |
7640 | invalid. */ | |
7641 | if ((section->flags & SEC_LOAD) != 0) | |
7642 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7643 | else | |
7644 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
502794d4 | 7645 | if (section->lma * opb - segment->p_paddr != seg_off) |
0a1b45a2 | 7646 | map->p_paddr_valid = false; |
a76e6f2f | 7647 | } |
53020534 L |
7648 | if (isec == section_count) |
7649 | break; | |
7650 | } | |
84d1d650 L |
7651 | } |
7652 | } | |
7653 | ||
5d695627 | 7654 | if (section_count == 0) |
502794d4 | 7655 | map->p_vaddr_offset = segment->p_vaddr / opb; |
30fe1832 AM |
7656 | else if (map->p_paddr_valid) |
7657 | { | |
7658 | /* Account for padding before the first section in the segment. */ | |
7659 | bfd_vma hdr_size = 0; | |
7660 | if (map->includes_filehdr) | |
7661 | hdr_size = iehdr->e_ehsize; | |
7662 | if (map->includes_phdrs) | |
7663 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7664 | ||
502794d4 | 7665 | map->p_vaddr_offset = ((map->p_paddr + hdr_size) / opb |
30fe1832 AM |
7666 | - (lowest_section ? lowest_section->lma : 0)); |
7667 | } | |
a76e6f2f | 7668 | |
84d1d650 L |
7669 | map->count = section_count; |
7670 | *pointer_to_map = map; | |
7671 | pointer_to_map = &map->next; | |
7672 | } | |
7673 | ||
12bd6957 | 7674 | elf_seg_map (obfd) = map_first; |
0a1b45a2 | 7675 | return true; |
84d1d650 L |
7676 | } |
7677 | ||
7678 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7679 | information. */ | |
7680 | ||
0a1b45a2 | 7681 | static bool |
84d1d650 L |
7682 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
7683 | { | |
c410035d AM |
7684 | bfd_vma maxpagesize; |
7685 | ||
84d1d650 L |
7686 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7687 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 7688 | return true; |
84d1d650 L |
7689 | |
7690 | if (elf_tdata (ibfd)->phdr == NULL) | |
0a1b45a2 | 7691 | return true; |
84d1d650 L |
7692 | |
7693 | if (ibfd->xvec == obfd->xvec) | |
7694 | { | |
cb3ff1e5 NC |
7695 | /* Check to see if any sections in the input BFD |
7696 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7697 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7698 | asection *section, *osec; |
7699 | unsigned int i, num_segments; | |
7700 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7701 | const struct elf_backend_data *bed; |
7702 | ||
7703 | bed = get_elf_backend_data (ibfd); | |
7704 | ||
7705 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7706 | if (bed->want_p_paddr_set_to_zero) | |
7707 | goto rewrite; | |
84d1d650 L |
7708 | |
7709 | /* Initialize the segment mark field. */ | |
7710 | for (section = obfd->sections; section != NULL; | |
7711 | section = section->next) | |
0a1b45a2 | 7712 | section->segment_mark = false; |
84d1d650 L |
7713 | |
7714 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7715 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7716 | i < num_segments; | |
7717 | i++, segment++) | |
7718 | { | |
5f6999aa NC |
7719 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7720 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7721 | which severly confuses things, so always regenerate the segment | |
7722 | map in this case. */ | |
7723 | if (segment->p_paddr == 0 | |
7724 | && segment->p_memsz == 0 | |
7725 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7726 | goto rewrite; |
5f6999aa | 7727 | |
84d1d650 L |
7728 | for (section = ibfd->sections; |
7729 | section != NULL; section = section->next) | |
7730 | { | |
7731 | /* We mark the output section so that we know it comes | |
7732 | from the input BFD. */ | |
7733 | osec = section->output_section; | |
7734 | if (osec) | |
0a1b45a2 | 7735 | osec->segment_mark = true; |
84d1d650 L |
7736 | |
7737 | /* Check if this section is covered by the segment. */ | |
7738 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7739 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7740 | { |
7741 | /* FIXME: Check if its output section is changed or | |
7742 | removed. What else do we need to check? */ | |
7743 | if (osec == NULL | |
7744 | || section->flags != osec->flags | |
7745 | || section->lma != osec->lma | |
7746 | || section->vma != osec->vma | |
7747 | || section->size != osec->size | |
7748 | || section->rawsize != osec->rawsize | |
7749 | || section->alignment_power != osec->alignment_power) | |
7750 | goto rewrite; | |
7751 | } | |
7752 | } | |
7753 | } | |
7754 | ||
cb3ff1e5 | 7755 | /* Check to see if any output section do not come from the |
84d1d650 L |
7756 | input BFD. */ |
7757 | for (section = obfd->sections; section != NULL; | |
7758 | section = section->next) | |
7759 | { | |
535b785f | 7760 | if (!section->segment_mark) |
84d1d650 L |
7761 | goto rewrite; |
7762 | else | |
0a1b45a2 | 7763 | section->segment_mark = false; |
84d1d650 L |
7764 | } |
7765 | ||
7766 | return copy_elf_program_header (ibfd, obfd); | |
7767 | } | |
7768 | ||
dc1e8a47 | 7769 | rewrite: |
c410035d | 7770 | maxpagesize = 0; |
f1d85785 L |
7771 | if (ibfd->xvec == obfd->xvec) |
7772 | { | |
7773 | /* When rewriting program header, set the output maxpagesize to | |
7774 | the maximum alignment of input PT_LOAD segments. */ | |
7775 | Elf_Internal_Phdr *segment; | |
7776 | unsigned int i; | |
7777 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
f1d85785 L |
7778 | |
7779 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7780 | i < num_segments; | |
7781 | i++, segment++) | |
7782 | if (segment->p_type == PT_LOAD | |
7783 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7784 | { |
7785 | /* PR 17512: file: f17299af. */ | |
7786 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7787 | /* xgettext:c-format */ |
2dcf00ce AM |
7788 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7789 | PRIx64 " is too large"), | |
7790 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7791 | else |
7792 | maxpagesize = segment->p_align; | |
7793 | } | |
f1d85785 | 7794 | } |
c410035d AM |
7795 | if (maxpagesize == 0) |
7796 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; | |
f1d85785 | 7797 | |
c410035d | 7798 | return rewrite_elf_program_header (ibfd, obfd, maxpagesize); |
84d1d650 L |
7799 | } |
7800 | ||
ccd2ec6a L |
7801 | /* Initialize private output section information from input section. */ |
7802 | ||
0a1b45a2 | 7803 | bool |
ccd2ec6a L |
7804 | _bfd_elf_init_private_section_data (bfd *ibfd, |
7805 | asection *isec, | |
7806 | bfd *obfd, | |
7807 | asection *osec, | |
7808 | struct bfd_link_info *link_info) | |
7809 | ||
7810 | { | |
7811 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0a1b45a2 AM |
7812 | bool final_link = (link_info != NULL |
7813 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7814 | |
7815 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7816 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
0a1b45a2 | 7817 | return true; |
ccd2ec6a | 7818 | |
ba85c43e NC |
7819 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7820 | ||
8c803a2d AM |
7821 | /* If this is a known ABI section, ELF section type and flags may |
7822 | have been set up when OSEC was created. For normal sections we | |
7823 | allow the user to override the type and flags other than | |
7824 | SHF_MASKOS and SHF_MASKPROC. */ | |
7825 | if (elf_section_type (osec) == SHT_PROGBITS | |
7826 | || elf_section_type (osec) == SHT_NOTE | |
7827 | || elf_section_type (osec) == SHT_NOBITS) | |
7828 | elf_section_type (osec) = SHT_NULL; | |
7829 | /* For objcopy and relocatable link, copy the ELF section type from | |
7830 | the input file if the BFD section flags are the same. (If they | |
7831 | are different the user may be doing something like | |
7832 | "objcopy --set-section-flags .text=alloc,data".) For a final | |
7833 | link allow some flags that the linker clears to differ. */ | |
42bb2e33 | 7834 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7835 | && (osec->flags == isec->flags |
7836 | || (final_link | |
7837 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7838 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7839 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7840 | |
7841 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
8c803a2d AM |
7842 | elf_section_flags (osec) = (elf_section_flags (isec) |
7843 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7844 | |
a91e1603 | 7845 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7846 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7847 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7848 | elf_section_data (osec)->this_hdr.sh_info |
7849 | = elf_section_data (isec)->this_hdr.sh_info; | |
7850 | ||
ccd2ec6a L |
7851 | /* Set things up for objcopy and relocatable link. The output |
7852 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7853 | to the input group members. Ignore linker created group section. | |
7854 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7855 | if ((link_info == NULL |
7856 | || !link_info->resolve_section_groups) | |
7857 | && (elf_sec_group (isec) == NULL | |
7858 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7859 | { |
7bdf4127 AB |
7860 | if (elf_section_flags (isec) & SHF_GROUP) |
7861 | elf_section_flags (osec) |= SHF_GROUP; | |
7862 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7863 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7864 | } |
7865 | ||
7bdf4127 AB |
7866 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7867 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7868 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7869 | & SHF_COMPRESSED); | |
7870 | ||
ccd2ec6a L |
7871 | ihdr = &elf_section_data (isec)->this_hdr; |
7872 | ||
7873 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7874 | don't use the output section of the linked-to section since it | |
7875 | may be NULL at this point. */ | |
7876 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7877 | { | |
7878 | ohdr = &elf_section_data (osec)->this_hdr; | |
7879 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7880 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7881 | } | |
7882 | ||
7883 | osec->use_rela_p = isec->use_rela_p; | |
7884 | ||
0a1b45a2 | 7885 | return true; |
ccd2ec6a L |
7886 | } |
7887 | ||
252b5132 RH |
7888 | /* Copy private section information. This copies over the entsize |
7889 | field, and sometimes the info field. */ | |
7890 | ||
0a1b45a2 | 7891 | bool |
217aa764 AM |
7892 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7893 | asection *isec, | |
7894 | bfd *obfd, | |
7895 | asection *osec) | |
252b5132 RH |
7896 | { |
7897 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7898 | ||
7899 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7900 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
0a1b45a2 | 7901 | return true; |
252b5132 | 7902 | |
252b5132 RH |
7903 | ihdr = &elf_section_data (isec)->this_hdr; |
7904 | ohdr = &elf_section_data (osec)->this_hdr; | |
7905 | ||
7906 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7907 | ||
7908 | if (ihdr->sh_type == SHT_SYMTAB | |
7909 | || ihdr->sh_type == SHT_DYNSYM | |
7910 | || ihdr->sh_type == SHT_GNU_verneed | |
7911 | || ihdr->sh_type == SHT_GNU_verdef) | |
7912 | ohdr->sh_info = ihdr->sh_info; | |
7913 | ||
ccd2ec6a L |
7914 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7915 | NULL); | |
252b5132 RH |
7916 | } |
7917 | ||
d0bf826b AM |
7918 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7919 | necessary if we are removing either the SHT_GROUP section or any of | |
7920 | the group member sections. DISCARDED is the value that a section's | |
7921 | output_section has if the section will be discarded, NULL when this | |
7922 | function is called from objcopy, bfd_abs_section_ptr when called | |
7923 | from the linker. */ | |
80fccad2 | 7924 | |
0a1b45a2 | 7925 | bool |
d0bf826b | 7926 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7927 | { |
30288845 AM |
7928 | asection *isec; |
7929 | ||
30288845 | 7930 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7931 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7932 | { |
7933 | asection *first = elf_next_in_group (isec); | |
7934 | asection *s = first; | |
d0bf826b AM |
7935 | bfd_size_type removed = 0; |
7936 | ||
30288845 AM |
7937 | while (s != NULL) |
7938 | { | |
415f38a6 AM |
7939 | /* If this member section is being output but the |
7940 | SHT_GROUP section is not, then clear the group info | |
7941 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7942 | if (s->output_section != discarded |
7943 | && isec->output_section == discarded) | |
30288845 AM |
7944 | { |
7945 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7946 | elf_group_name (s->output_section) = NULL; | |
7947 | } | |
3349112e | 7948 | else |
6e5e9d58 AM |
7949 | { |
7950 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
3349112e L |
7951 | if (s->output_section == discarded |
7952 | && isec->output_section != discarded) | |
7953 | { | |
7954 | /* Conversely, if the member section is not being | |
7955 | output but the SHT_GROUP section is, then adjust | |
7956 | its size. */ | |
7957 | removed += 4; | |
7958 | if (elf_sec->rel.hdr != NULL | |
7959 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7960 | removed += 4; | |
7961 | if (elf_sec->rela.hdr != NULL | |
7962 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7963 | removed += 4; | |
7964 | } | |
7965 | else | |
7966 | { | |
7967 | /* Also adjust for zero-sized relocation member | |
7968 | section. */ | |
7969 | if (elf_sec->rel.hdr != NULL | |
7970 | && elf_sec->rel.hdr->sh_size == 0) | |
7971 | removed += 4; | |
7972 | if (elf_sec->rela.hdr != NULL | |
7973 | && elf_sec->rela.hdr->sh_size == 0) | |
7974 | removed += 4; | |
7975 | } | |
6e5e9d58 | 7976 | } |
30288845 AM |
7977 | s = elf_next_in_group (s); |
7978 | if (s == first) | |
7979 | break; | |
7980 | } | |
d0bf826b AM |
7981 | if (removed != 0) |
7982 | { | |
7983 | if (discarded != NULL) | |
7984 | { | |
7985 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7986 | adjust the input section size. */ |
d0bf826b AM |
7987 | if (isec->rawsize == 0) |
7988 | isec->rawsize = isec->size; | |
7989 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7990 | if (isec->size <= 4) |
7991 | { | |
7992 | isec->size = 0; | |
7993 | isec->flags |= SEC_EXCLUDE; | |
7994 | } | |
d0bf826b AM |
7995 | } |
7996 | else | |
7997 | { | |
7998 | /* Adjust the output section size when called from | |
7999 | objcopy. */ | |
8000 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
8001 | if (isec->output_section->size <= 4) |
8002 | { | |
8003 | isec->output_section->size = 0; | |
8004 | isec->output_section->flags |= SEC_EXCLUDE; | |
8005 | } | |
d0bf826b AM |
8006 | } |
8007 | } | |
30288845 AM |
8008 | } |
8009 | ||
0a1b45a2 | 8010 | return true; |
80fccad2 BW |
8011 | } |
8012 | ||
d0bf826b AM |
8013 | /* Copy private header information. */ |
8014 | ||
0a1b45a2 | 8015 | bool |
d0bf826b AM |
8016 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) |
8017 | { | |
8018 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8019 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 8020 | return true; |
d0bf826b AM |
8021 | |
8022 | /* Copy over private BFD data if it has not already been copied. | |
8023 | This must be done here, rather than in the copy_private_bfd_data | |
8024 | entry point, because the latter is called after the section | |
8025 | contents have been set, which means that the program headers have | |
8026 | already been worked out. */ | |
12bd6957 | 8027 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
8028 | { |
8029 | if (! copy_private_bfd_data (ibfd, obfd)) | |
0a1b45a2 | 8030 | return false; |
d0bf826b AM |
8031 | } |
8032 | ||
8033 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
8034 | } | |
8035 | ||
252b5132 RH |
8036 | /* Copy private symbol information. If this symbol is in a section |
8037 | which we did not map into a BFD section, try to map the section | |
8038 | index correctly. We use special macro definitions for the mapped | |
8039 | section indices; these definitions are interpreted by the | |
8040 | swap_out_syms function. */ | |
8041 | ||
9ad5cbcf AM |
8042 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
8043 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
8044 | #define MAP_STRTAB (SHN_HIOS + 3) | |
8045 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
8046 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 8047 | |
0a1b45a2 | 8048 | bool |
217aa764 AM |
8049 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
8050 | asymbol *isymarg, | |
8051 | bfd *obfd, | |
8052 | asymbol *osymarg) | |
252b5132 RH |
8053 | { |
8054 | elf_symbol_type *isym, *osym; | |
8055 | ||
8056 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
8057 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
0a1b45a2 | 8058 | return true; |
252b5132 | 8059 | |
c1229f84 AM |
8060 | isym = elf_symbol_from (isymarg); |
8061 | osym = elf_symbol_from (osymarg); | |
252b5132 RH |
8062 | |
8063 | if (isym != NULL | |
8424d8f5 | 8064 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
8065 | && osym != NULL |
8066 | && bfd_is_abs_section (isym->symbol.section)) | |
8067 | { | |
8068 | unsigned int shndx; | |
8069 | ||
8070 | shndx = isym->internal_elf_sym.st_shndx; | |
8071 | if (shndx == elf_onesymtab (ibfd)) | |
8072 | shndx = MAP_ONESYMTAB; | |
8073 | else if (shndx == elf_dynsymtab (ibfd)) | |
8074 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 8075 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 8076 | shndx = MAP_STRTAB; |
12bd6957 | 8077 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 8078 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 8079 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 8080 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
8081 | osym->internal_elf_sym.st_shndx = shndx; |
8082 | } | |
8083 | ||
0a1b45a2 | 8084 | return true; |
252b5132 RH |
8085 | } |
8086 | ||
8087 | /* Swap out the symbols. */ | |
8088 | ||
0a1b45a2 | 8089 | static bool |
217aa764 | 8090 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8091 | struct elf_strtab_hash **sttp, |
3d16b64e NA |
8092 | int relocatable_p, |
8093 | struct bfd_link_info *info) | |
252b5132 | 8094 | { |
9c5bfbb7 | 8095 | const struct elf_backend_data *bed; |
1f4361a7 | 8096 | unsigned int symcount; |
079e9a2f | 8097 | asymbol **syms; |
ef10c3ac | 8098 | struct elf_strtab_hash *stt; |
079e9a2f | 8099 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8100 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8101 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8102 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8103 | bfd_byte *outbound_syms; |
8104 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
8105 | unsigned long outbound_syms_index; |
8106 | unsigned long outbound_shndx_index; | |
1f4361a7 | 8107 | unsigned int idx; |
12bd6957 | 8108 | unsigned int num_locals; |
1f4361a7 | 8109 | size_t amt; |
0a1b45a2 | 8110 | bool name_local_sections; |
252b5132 | 8111 | |
12bd6957 | 8112 | if (!elf_map_symbols (abfd, &num_locals)) |
0a1b45a2 | 8113 | return false; |
252b5132 | 8114 | |
c044fabd | 8115 | /* Dump out the symtabs. */ |
ef10c3ac | 8116 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8117 | if (stt == NULL) |
0a1b45a2 | 8118 | return false; |
252b5132 | 8119 | |
079e9a2f AM |
8120 | bed = get_elf_backend_data (abfd); |
8121 | symcount = bfd_get_symcount (abfd); | |
8122 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8123 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8124 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8125 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8126 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8127 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8128 | |
8129 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8130 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8131 | ||
ef10c3ac | 8132 | /* Allocate buffer to swap out the .strtab section. */ |
1f4361a7 AM |
8133 | if (_bfd_mul_overflow (symcount + 1, sizeof (*symstrtab), &amt) |
8134 | || (symstrtab = (struct elf_sym_strtab *) bfd_malloc (amt)) == NULL) | |
ef10c3ac | 8135 | { |
1f4361a7 | 8136 | bfd_set_error (bfd_error_no_memory); |
ef10c3ac | 8137 | _bfd_elf_strtab_free (stt); |
0a1b45a2 | 8138 | return false; |
ef10c3ac L |
8139 | } |
8140 | ||
1f4361a7 AM |
8141 | if (_bfd_mul_overflow (symcount + 1, bed->s->sizeof_sym, &amt) |
8142 | || (outbound_syms = (bfd_byte *) bfd_alloc (abfd, amt)) == NULL) | |
5ed6aba4 | 8143 | { |
1f4361a7 AM |
8144 | error_no_mem: |
8145 | bfd_set_error (bfd_error_no_memory); | |
8146 | error_return: | |
ef10c3ac | 8147 | free (symstrtab); |
1f4361a7 | 8148 | _bfd_elf_strtab_free (stt); |
0a1b45a2 | 8149 | return false; |
5ed6aba4 | 8150 | } |
217aa764 | 8151 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8152 | outbound_syms_index = 0; |
252b5132 | 8153 | |
9ad5cbcf | 8154 | outbound_shndx = NULL; |
ef10c3ac | 8155 | outbound_shndx_index = 0; |
6a40cf0c NC |
8156 | |
8157 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8158 | { |
6a40cf0c NC |
8159 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8160 | if (symtab_shndx_hdr->sh_name != 0) | |
8161 | { | |
1f4361a7 AM |
8162 | if (_bfd_mul_overflow (symcount + 1, |
8163 | sizeof (Elf_External_Sym_Shndx), &amt)) | |
8164 | goto error_no_mem; | |
8165 | outbound_shndx = (bfd_byte *) bfd_zalloc (abfd, amt); | |
6a40cf0c NC |
8166 | if (outbound_shndx == NULL) |
8167 | goto error_return; | |
5ed6aba4 | 8168 | |
6a40cf0c NC |
8169 | symtab_shndx_hdr->contents = outbound_shndx; |
8170 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8171 | symtab_shndx_hdr->sh_size = amt; | |
8172 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8173 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8174 | } | |
8175 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8176 | } |
8177 | ||
589e6347 | 8178 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8179 | { |
8180 | /* Fill in zeroth symbol and swap it out. */ | |
8181 | Elf_Internal_Sym sym; | |
8182 | sym.st_name = 0; | |
8183 | sym.st_value = 0; | |
8184 | sym.st_size = 0; | |
8185 | sym.st_info = 0; | |
8186 | sym.st_other = 0; | |
8187 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8188 | sym.st_target_internal = 0; |
ef10c3ac L |
8189 | symstrtab[0].sym = sym; |
8190 | symstrtab[0].dest_index = outbound_syms_index; | |
8191 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8192 | outbound_syms_index++; | |
9ad5cbcf | 8193 | if (outbound_shndx != NULL) |
ef10c3ac | 8194 | outbound_shndx_index++; |
079e9a2f | 8195 | } |
252b5132 | 8196 | |
174fd7f9 RS |
8197 | name_local_sections |
8198 | = (bed->elf_backend_name_local_section_symbols | |
8199 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8200 | ||
079e9a2f | 8201 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8202 | for (idx = 0; idx < symcount;) |
252b5132 | 8203 | { |
252b5132 | 8204 | Elf_Internal_Sym sym; |
079e9a2f AM |
8205 | bfd_vma value = syms[idx]->value; |
8206 | elf_symbol_type *type_ptr; | |
8207 | flagword flags = syms[idx]->flags; | |
8208 | int type; | |
252b5132 | 8209 | |
174fd7f9 RS |
8210 | if (!name_local_sections |
8211 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8212 | { |
8213 | /* Local section symbols have no name. */ | |
ef10c3ac | 8214 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8215 | } |
8216 | else | |
8217 | { | |
ef10c3ac L |
8218 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8219 | to get the final offset for st_name. */ | |
8220 | sym.st_name | |
8221 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
0a1b45a2 | 8222 | false); |
079e9a2f | 8223 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8224 | goto error_return; |
079e9a2f | 8225 | } |
252b5132 | 8226 | |
c1229f84 | 8227 | type_ptr = elf_symbol_from (syms[idx]); |
252b5132 | 8228 | |
079e9a2f AM |
8229 | if ((flags & BSF_SECTION_SYM) == 0 |
8230 | && bfd_is_com_section (syms[idx]->section)) | |
8231 | { | |
8232 | /* ELF common symbols put the alignment into the `value' field, | |
8233 | and the size into the `size' field. This is backwards from | |
8234 | how BFD handles it, so reverse it here. */ | |
8235 | sym.st_size = value; | |
8236 | if (type_ptr == NULL | |
8237 | || type_ptr->internal_elf_sym.st_value == 0) | |
8238 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8239 | else | |
8240 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8241 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8242 | (abfd, syms[idx]->section); | |
8243 | } | |
8244 | else | |
8245 | { | |
8246 | asection *sec = syms[idx]->section; | |
cb33740c | 8247 | unsigned int shndx; |
252b5132 | 8248 | |
079e9a2f AM |
8249 | if (sec->output_section) |
8250 | { | |
8251 | value += sec->output_offset; | |
8252 | sec = sec->output_section; | |
8253 | } | |
589e6347 | 8254 | |
079e9a2f AM |
8255 | /* Don't add in the section vma for relocatable output. */ |
8256 | if (! relocatable_p) | |
8257 | value += sec->vma; | |
8258 | sym.st_value = value; | |
8259 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8260 | ||
8261 | if (bfd_is_abs_section (sec) | |
8262 | && type_ptr != NULL | |
8263 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8264 | { | |
8265 | /* This symbol is in a real ELF section which we did | |
8266 | not create as a BFD section. Undo the mapping done | |
8267 | by copy_private_symbol_data. */ | |
8268 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8269 | switch (shndx) | |
8270 | { | |
8271 | case MAP_ONESYMTAB: | |
8272 | shndx = elf_onesymtab (abfd); | |
8273 | break; | |
8274 | case MAP_DYNSYMTAB: | |
8275 | shndx = elf_dynsymtab (abfd); | |
8276 | break; | |
8277 | case MAP_STRTAB: | |
12bd6957 | 8278 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8279 | break; |
8280 | case MAP_SHSTRTAB: | |
12bd6957 | 8281 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8282 | break; |
9ad5cbcf | 8283 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8284 | if (elf_symtab_shndx_list (abfd)) |
8285 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8286 | break; |
00e49dff NC |
8287 | case SHN_COMMON: |
8288 | case SHN_ABS: | |
15bc576a | 8289 | shndx = SHN_ABS; |
079e9a2f | 8290 | break; |
00e49dff NC |
8291 | default: |
8292 | if (shndx >= SHN_LOPROC && shndx <= SHN_HIOS) | |
8293 | { | |
8294 | if (bed->symbol_section_index) | |
8295 | shndx = bed->symbol_section_index (abfd, type_ptr); | |
8296 | /* Otherwise just leave the index alone. */ | |
8297 | } | |
8298 | else | |
8299 | { | |
8300 | if (shndx > SHN_HIOS && shndx < SHN_HIRESERVE) | |
8301 | _bfd_error_handler (_("%pB: \ | |
8302 | Unable to handle section index %x in ELF symbol. Using ABS instead."), | |
8303 | abfd, shndx); | |
8304 | shndx = SHN_ABS; | |
8305 | } | |
8306 | break; | |
079e9a2f AM |
8307 | } |
8308 | } | |
8309 | else | |
8310 | { | |
8311 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8312 | |
cb33740c | 8313 | if (shndx == SHN_BAD) |
079e9a2f AM |
8314 | { |
8315 | asection *sec2; | |
8316 | ||
8317 | /* Writing this would be a hell of a lot easier if | |
8318 | we had some decent documentation on bfd, and | |
8319 | knew what to expect of the library, and what to | |
8320 | demand of applications. For example, it | |
8321 | appears that `objcopy' might not set the | |
8322 | section of a symbol to be a section that is | |
8323 | actually in the output file. */ | |
8324 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8325 | if (sec2 != NULL) |
8326 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8327 | if (shndx == SHN_BAD) | |
589e6347 | 8328 | { |
695344c0 | 8329 | /* xgettext:c-format */ |
9793eb77 AM |
8330 | _bfd_error_handler |
8331 | (_("unable to find equivalent output section" | |
8332 | " for symbol '%s' from section '%s'"), | |
8333 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8334 | sec->name); | |
811072d8 | 8335 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8336 | goto error_return; |
589e6347 | 8337 | } |
079e9a2f AM |
8338 | } |
8339 | } | |
252b5132 | 8340 | |
079e9a2f AM |
8341 | sym.st_shndx = shndx; |
8342 | } | |
252b5132 | 8343 | |
13ae64f3 JJ |
8344 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8345 | type = STT_TLS; | |
d8045f23 NC |
8346 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8347 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8348 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8349 | type = STT_FUNC; |
8350 | else if ((flags & BSF_OBJECT) != 0) | |
8351 | type = STT_OBJECT; | |
d9352518 DB |
8352 | else if ((flags & BSF_RELC) != 0) |
8353 | type = STT_RELC; | |
8354 | else if ((flags & BSF_SRELC) != 0) | |
8355 | type = STT_SRELC; | |
079e9a2f AM |
8356 | else |
8357 | type = STT_NOTYPE; | |
252b5132 | 8358 | |
13ae64f3 JJ |
8359 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8360 | type = STT_TLS; | |
8361 | ||
589e6347 | 8362 | /* Processor-specific types. */ |
079e9a2f AM |
8363 | if (type_ptr != NULL |
8364 | && bed->elf_backend_get_symbol_type) | |
8365 | type = ((*bed->elf_backend_get_symbol_type) | |
8366 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8367 | |
079e9a2f AM |
8368 | if (flags & BSF_SECTION_SYM) |
8369 | { | |
8370 | if (flags & BSF_GLOBAL) | |
8371 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8372 | else | |
8373 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8374 | } | |
8375 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8376 | { |
b8871f35 L |
8377 | if (type != STT_TLS) |
8378 | { | |
8379 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8380 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8381 | ? STT_COMMON : STT_OBJECT); | |
8382 | else | |
8383 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8384 | ? STT_COMMON : STT_OBJECT); | |
8385 | } | |
8386 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8387 | } |
079e9a2f AM |
8388 | else if (bfd_is_und_section (syms[idx]->section)) |
8389 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8390 | ? STB_WEAK | |
8391 | : STB_GLOBAL), | |
8392 | type); | |
8393 | else if (flags & BSF_FILE) | |
8394 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8395 | else | |
8396 | { | |
8397 | int bind = STB_LOCAL; | |
252b5132 | 8398 | |
079e9a2f AM |
8399 | if (flags & BSF_LOCAL) |
8400 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8401 | else if (flags & BSF_GNU_UNIQUE) |
8402 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8403 | else if (flags & BSF_WEAK) |
8404 | bind = STB_WEAK; | |
8405 | else if (flags & BSF_GLOBAL) | |
8406 | bind = STB_GLOBAL; | |
252b5132 | 8407 | |
079e9a2f AM |
8408 | sym.st_info = ELF_ST_INFO (bind, type); |
8409 | } | |
252b5132 | 8410 | |
079e9a2f | 8411 | if (type_ptr != NULL) |
35fc36a8 RS |
8412 | { |
8413 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8414 | sym.st_target_internal | |
8415 | = type_ptr->internal_elf_sym.st_target_internal; | |
8416 | } | |
079e9a2f | 8417 | else |
35fc36a8 RS |
8418 | { |
8419 | sym.st_other = 0; | |
8420 | sym.st_target_internal = 0; | |
8421 | } | |
252b5132 | 8422 | |
ef10c3ac L |
8423 | idx++; |
8424 | symstrtab[idx].sym = sym; | |
8425 | symstrtab[idx].dest_index = outbound_syms_index; | |
8426 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8427 | ||
8428 | outbound_syms_index++; | |
9ad5cbcf | 8429 | if (outbound_shndx != NULL) |
ef10c3ac L |
8430 | outbound_shndx_index++; |
8431 | } | |
8432 | ||
8433 | /* Finalize the .strtab section. */ | |
8434 | _bfd_elf_strtab_finalize (stt); | |
8435 | ||
8436 | /* Swap out the .strtab section. */ | |
8437 | for (idx = 0; idx <= symcount; idx++) | |
8438 | { | |
8439 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8440 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8441 | elfsym->sym.st_name = 0; | |
8442 | else | |
8443 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8444 | elfsym->sym.st_name); | |
3d16b64e NA |
8445 | if (info && info->callbacks->ctf_new_symbol) |
8446 | info->callbacks->ctf_new_symbol (elfsym->dest_index, | |
8447 | &elfsym->sym); | |
8448 | ||
8449 | /* Inform the linker of the addition of this symbol. */ | |
8450 | ||
ef10c3ac L |
8451 | bed->s->swap_symbol_out (abfd, &elfsym->sym, |
8452 | (outbound_syms | |
8453 | + (elfsym->dest_index | |
8454 | * bed->s->sizeof_sym)), | |
8455 | (outbound_shndx | |
8456 | + (elfsym->destshndx_index | |
8457 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8458 | } |
ef10c3ac | 8459 | free (symstrtab); |
252b5132 | 8460 | |
079e9a2f | 8461 | *sttp = stt; |
ef10c3ac | 8462 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8463 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8464 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8465 | symstrtab_hdr->sh_addr = 0; |
8466 | symstrtab_hdr->sh_entsize = 0; | |
8467 | symstrtab_hdr->sh_link = 0; | |
8468 | symstrtab_hdr->sh_info = 0; | |
8469 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8470 | |
0a1b45a2 | 8471 | return true; |
252b5132 RH |
8472 | } |
8473 | ||
8474 | /* Return the number of bytes required to hold the symtab vector. | |
8475 | ||
8476 | Note that we base it on the count plus 1, since we will null terminate | |
8477 | the vector allocated based on this size. However, the ELF symbol table | |
8478 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8479 | ||
8480 | long | |
217aa764 | 8481 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8482 | { |
3a551c7a | 8483 | bfd_size_type symcount; |
252b5132 RH |
8484 | long symtab_size; |
8485 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8486 | ||
8487 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8488 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8489 | { |
8490 | bfd_set_error (bfd_error_file_too_big); | |
8491 | return -1; | |
8492 | } | |
b5f386d5 AM |
8493 | symtab_size = symcount * (sizeof (asymbol *)); |
8494 | if (symcount == 0) | |
8495 | symtab_size = sizeof (asymbol *); | |
8496 | else if (!bfd_write_p (abfd)) | |
8497 | { | |
8498 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8499 | ||
8500 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8501 | { | |
8502 | bfd_set_error (bfd_error_file_truncated); | |
8503 | return -1; | |
8504 | } | |
8505 | } | |
252b5132 RH |
8506 | |
8507 | return symtab_size; | |
8508 | } | |
8509 | ||
8510 | long | |
217aa764 | 8511 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8512 | { |
3a551c7a | 8513 | bfd_size_type symcount; |
252b5132 RH |
8514 | long symtab_size; |
8515 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8516 | ||
8517 | if (elf_dynsymtab (abfd) == 0) | |
8518 | { | |
8519 | bfd_set_error (bfd_error_invalid_operation); | |
8520 | return -1; | |
8521 | } | |
8522 | ||
8523 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
b5f386d5 | 8524 | if (symcount > LONG_MAX / sizeof (asymbol *)) |
3a551c7a AM |
8525 | { |
8526 | bfd_set_error (bfd_error_file_too_big); | |
8527 | return -1; | |
8528 | } | |
b5f386d5 AM |
8529 | symtab_size = symcount * (sizeof (asymbol *)); |
8530 | if (symcount == 0) | |
8531 | symtab_size = sizeof (asymbol *); | |
8532 | else if (!bfd_write_p (abfd)) | |
8533 | { | |
8534 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8535 | ||
8536 | if (filesize != 0 && (unsigned long) symtab_size > filesize) | |
8537 | { | |
8538 | bfd_set_error (bfd_error_file_truncated); | |
8539 | return -1; | |
8540 | } | |
8541 | } | |
252b5132 RH |
8542 | |
8543 | return symtab_size; | |
8544 | } | |
8545 | ||
8546 | long | |
3c568b8a | 8547 | _bfd_elf_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 | 8548 | { |
b5f386d5 | 8549 | if (asect->reloc_count != 0 && !bfd_write_p (abfd)) |
3c568b8a AM |
8550 | { |
8551 | /* Sanity check reloc section size. */ | |
8552 | struct bfd_elf_section_data *d = elf_section_data (asect); | |
8553 | Elf_Internal_Shdr *rel_hdr = &d->this_hdr; | |
8554 | bfd_size_type ext_rel_size = rel_hdr->sh_size; | |
8555 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8556 | ||
8557 | if (filesize != 0 && ext_rel_size > filesize) | |
8558 | { | |
8559 | bfd_set_error (bfd_error_file_truncated); | |
8560 | return -1; | |
8561 | } | |
8562 | } | |
8563 | ||
242a1159 | 8564 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8565 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8566 | { | |
8567 | bfd_set_error (bfd_error_file_too_big); | |
8568 | return -1; | |
8569 | } | |
242a1159 | 8570 | #endif |
252b5132 RH |
8571 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8572 | } | |
8573 | ||
8574 | /* Canonicalize the relocs. */ | |
8575 | ||
8576 | long | |
217aa764 AM |
8577 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8578 | sec_ptr section, | |
8579 | arelent **relptr, | |
8580 | asymbol **symbols) | |
252b5132 RH |
8581 | { |
8582 | arelent *tblptr; | |
8583 | unsigned int i; | |
9c5bfbb7 | 8584 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8585 | |
0a1b45a2 | 8586 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, false)) |
252b5132 RH |
8587 | return -1; |
8588 | ||
8589 | tblptr = section->relocation; | |
8590 | for (i = 0; i < section->reloc_count; i++) | |
8591 | *relptr++ = tblptr++; | |
8592 | ||
8593 | *relptr = NULL; | |
8594 | ||
8595 | return section->reloc_count; | |
8596 | } | |
8597 | ||
8598 | long | |
6cee3f79 | 8599 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8600 | { |
9c5bfbb7 | 8601 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0a1b45a2 | 8602 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, false); |
252b5132 RH |
8603 | |
8604 | if (symcount >= 0) | |
ed48ec2e | 8605 | abfd->symcount = symcount; |
252b5132 RH |
8606 | return symcount; |
8607 | } | |
8608 | ||
8609 | long | |
217aa764 AM |
8610 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8611 | asymbol **allocation) | |
252b5132 | 8612 | { |
9c5bfbb7 | 8613 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0a1b45a2 | 8614 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, true); |
1f70368c DJ |
8615 | |
8616 | if (symcount >= 0) | |
ed48ec2e | 8617 | abfd->dynsymcount = symcount; |
1f70368c | 8618 | return symcount; |
252b5132 RH |
8619 | } |
8620 | ||
8615f3f2 AM |
8621 | /* Return the size required for the dynamic reloc entries. Any loadable |
8622 | section that was actually installed in the BFD, and has type SHT_REL | |
8623 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8624 | dynamic reloc section. */ | |
252b5132 RH |
8625 | |
8626 | long | |
217aa764 | 8627 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8628 | { |
3c568b8a | 8629 | bfd_size_type count, ext_rel_size; |
252b5132 RH |
8630 | asection *s; |
8631 | ||
8632 | if (elf_dynsymtab (abfd) == 0) | |
8633 | { | |
8634 | bfd_set_error (bfd_error_invalid_operation); | |
8635 | return -1; | |
8636 | } | |
8637 | ||
3a551c7a | 8638 | count = 1; |
3c568b8a | 8639 | ext_rel_size = 0; |
252b5132 | 8640 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8641 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8642 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8643 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a | 8644 | { |
3c568b8a AM |
8645 | ext_rel_size += s->size; |
8646 | if (ext_rel_size < s->size) | |
8647 | { | |
8648 | bfd_set_error (bfd_error_file_truncated); | |
8649 | return -1; | |
8650 | } | |
3a551c7a AM |
8651 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; |
8652 | if (count > LONG_MAX / sizeof (arelent *)) | |
8653 | { | |
8654 | bfd_set_error (bfd_error_file_too_big); | |
8655 | return -1; | |
8656 | } | |
8657 | } | |
b5f386d5 | 8658 | if (count > 1 && !bfd_write_p (abfd)) |
3c568b8a AM |
8659 | { |
8660 | /* Sanity check reloc section sizes. */ | |
8661 | ufile_ptr filesize = bfd_get_file_size (abfd); | |
8662 | if (filesize != 0 && ext_rel_size > filesize) | |
8663 | { | |
8664 | bfd_set_error (bfd_error_file_truncated); | |
8665 | return -1; | |
8666 | } | |
8667 | } | |
3a551c7a | 8668 | return count * sizeof (arelent *); |
252b5132 RH |
8669 | } |
8670 | ||
8615f3f2 AM |
8671 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8672 | dynamic relocations as a single block, although they are actually | |
8673 | associated with particular sections; the interface, which was | |
8674 | designed for SunOS style shared libraries, expects that there is only | |
8675 | one set of dynamic relocs. Any loadable section that was actually | |
8676 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8677 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8678 | |
8679 | long | |
217aa764 AM |
8680 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8681 | arelent **storage, | |
8682 | asymbol **syms) | |
252b5132 | 8683 | { |
0a1b45a2 | 8684 | bool (*slurp_relocs) (bfd *, asection *, asymbol **, bool); |
252b5132 RH |
8685 | asection *s; |
8686 | long ret; | |
8687 | ||
8688 | if (elf_dynsymtab (abfd) == 0) | |
8689 | { | |
8690 | bfd_set_error (bfd_error_invalid_operation); | |
8691 | return -1; | |
8692 | } | |
8693 | ||
8694 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8695 | ret = 0; | |
8696 | for (s = abfd->sections; s != NULL; s = s->next) | |
8697 | { | |
266b05cf | 8698 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8699 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8700 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8701 | { | |
8702 | arelent *p; | |
8703 | long count, i; | |
8704 | ||
0a1b45a2 | 8705 | if (! (*slurp_relocs) (abfd, s, syms, true)) |
252b5132 | 8706 | return -1; |
eea6121a | 8707 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8708 | p = s->relocation; |
8709 | for (i = 0; i < count; i++) | |
8710 | *storage++ = p++; | |
8711 | ret += count; | |
8712 | } | |
8713 | } | |
8714 | ||
8715 | *storage = NULL; | |
8716 | ||
8717 | return ret; | |
8718 | } | |
8719 | \f | |
8720 | /* Read in the version information. */ | |
8721 | ||
0a1b45a2 AM |
8722 | bool |
8723 | _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver) | |
252b5132 RH |
8724 | { |
8725 | bfd_byte *contents = NULL; | |
fc0e6df6 | 8726 | unsigned int freeidx = 0; |
1f4361a7 | 8727 | size_t amt; |
fc0e6df6 PB |
8728 | |
8729 | if (elf_dynverref (abfd) != 0) | |
8730 | { | |
8731 | Elf_Internal_Shdr *hdr; | |
8732 | Elf_External_Verneed *everneed; | |
8733 | Elf_Internal_Verneed *iverneed; | |
8734 | unsigned int i; | |
d0fb9a8d | 8735 | bfd_byte *contents_end; |
fc0e6df6 PB |
8736 | |
8737 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8738 | ||
bd61e135 AM |
8739 | if (hdr->sh_info == 0 |
8740 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8741 | { |
dc1e8a47 | 8742 | error_return_bad_verref: |
4eca0228 | 8743 | _bfd_error_handler |
871b3ab2 | 8744 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8745 | bfd_set_error (bfd_error_bad_value); |
dc1e8a47 | 8746 | error_return_verref: |
d0fb9a8d JJ |
8747 | elf_tdata (abfd)->verref = NULL; |
8748 | elf_tdata (abfd)->cverrefs = 0; | |
8749 | goto error_return; | |
8750 | } | |
601a03ba | 8751 | |
2bb3687b AM |
8752 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
8753 | goto error_return_verref; | |
8754 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); | |
8755 | if (contents == NULL) | |
d0fb9a8d | 8756 | goto error_return_verref; |
fc0e6df6 | 8757 | |
1f4361a7 AM |
8758 | if (_bfd_mul_overflow (hdr->sh_info, sizeof (Elf_Internal_Verneed), &amt)) |
8759 | { | |
8760 | bfd_set_error (bfd_error_file_too_big); | |
8761 | goto error_return_verref; | |
8762 | } | |
8763 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt); | |
601a03ba | 8764 | if (elf_tdata (abfd)->verref == NULL) |
d0fb9a8d JJ |
8765 | goto error_return_verref; |
8766 | ||
8767 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8768 | == sizeof (Elf_External_Vernaux)); | |
8769 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8770 | everneed = (Elf_External_Verneed *) contents; |
8771 | iverneed = elf_tdata (abfd)->verref; | |
8772 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8773 | { | |
8774 | Elf_External_Vernaux *evernaux; | |
8775 | Elf_Internal_Vernaux *ivernaux; | |
8776 | unsigned int j; | |
8777 | ||
8778 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8779 | ||
8780 | iverneed->vn_bfd = abfd; | |
8781 | ||
8782 | iverneed->vn_filename = | |
8783 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8784 | iverneed->vn_file); | |
8785 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8786 | goto error_return_bad_verref; |
fc0e6df6 | 8787 | |
d0fb9a8d JJ |
8788 | if (iverneed->vn_cnt == 0) |
8789 | iverneed->vn_auxptr = NULL; | |
8790 | else | |
8791 | { | |
1f4361a7 AM |
8792 | if (_bfd_mul_overflow (iverneed->vn_cnt, |
8793 | sizeof (Elf_Internal_Vernaux), &amt)) | |
8794 | { | |
8795 | bfd_set_error (bfd_error_file_too_big); | |
8796 | goto error_return_verref; | |
8797 | } | |
a50b1753 | 8798 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
1f4361a7 | 8799 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8800 | if (iverneed->vn_auxptr == NULL) |
8801 | goto error_return_verref; | |
8802 | } | |
8803 | ||
8804 | if (iverneed->vn_aux | |
8805 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8806 | goto error_return_bad_verref; |
fc0e6df6 PB |
8807 | |
8808 | evernaux = ((Elf_External_Vernaux *) | |
8809 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8810 | ivernaux = iverneed->vn_auxptr; | |
8811 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8812 | { | |
8813 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8814 | ||
8815 | ivernaux->vna_nodename = | |
8816 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8817 | ivernaux->vna_name); | |
8818 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8819 | goto error_return_bad_verref; |
fc0e6df6 | 8820 | |
25ff461f AM |
8821 | if (ivernaux->vna_other > freeidx) |
8822 | freeidx = ivernaux->vna_other; | |
8823 | ||
8824 | ivernaux->vna_nextptr = NULL; | |
8825 | if (ivernaux->vna_next == 0) | |
8826 | { | |
8827 | iverneed->vn_cnt = j + 1; | |
8828 | break; | |
8829 | } | |
fc0e6df6 PB |
8830 | if (j + 1 < iverneed->vn_cnt) |
8831 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8832 | |
d0fb9a8d JJ |
8833 | if (ivernaux->vna_next |
8834 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8835 | goto error_return_bad_verref; |
d0fb9a8d | 8836 | |
fc0e6df6 PB |
8837 | evernaux = ((Elf_External_Vernaux *) |
8838 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8839 | } |
8840 | ||
25ff461f AM |
8841 | iverneed->vn_nextref = NULL; |
8842 | if (iverneed->vn_next == 0) | |
8843 | break; | |
fc0e6df6 PB |
8844 | if (i + 1 < hdr->sh_info) |
8845 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8846 | |
d0fb9a8d JJ |
8847 | if (iverneed->vn_next |
8848 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8849 | goto error_return_bad_verref; |
d0fb9a8d | 8850 | |
fc0e6df6 PB |
8851 | everneed = ((Elf_External_Verneed *) |
8852 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8853 | } | |
25ff461f | 8854 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8855 | |
8856 | free (contents); | |
8857 | contents = NULL; | |
8858 | } | |
252b5132 RH |
8859 | |
8860 | if (elf_dynverdef (abfd) != 0) | |
8861 | { | |
8862 | Elf_Internal_Shdr *hdr; | |
8863 | Elf_External_Verdef *everdef; | |
8864 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8865 | Elf_Internal_Verdef *iverdefarr; |
8866 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8867 | unsigned int i; |
062e2358 | 8868 | unsigned int maxidx; |
d0fb9a8d | 8869 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8870 | |
8871 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8872 | ||
601a03ba AM |
8873 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8874 | { | |
8875 | error_return_bad_verdef: | |
4eca0228 | 8876 | _bfd_error_handler |
871b3ab2 | 8877 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8878 | bfd_set_error (bfd_error_bad_value); |
8879 | error_return_verdef: | |
8880 | elf_tdata (abfd)->verdef = NULL; | |
8881 | elf_tdata (abfd)->cverdefs = 0; | |
8882 | goto error_return; | |
8883 | } | |
8884 | ||
2bb3687b | 8885 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0) |
601a03ba | 8886 | goto error_return_verdef; |
2bb3687b AM |
8887 | contents = _bfd_malloc_and_read (abfd, hdr->sh_size, hdr->sh_size); |
8888 | if (contents == NULL) | |
601a03ba | 8889 | goto error_return_verdef; |
d0fb9a8d JJ |
8890 | |
8891 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8892 | >= sizeof (Elf_External_Verdaux)); | |
8893 | contents_end_def = contents + hdr->sh_size | |
8894 | - sizeof (Elf_External_Verdef); | |
8895 | contents_end_aux = contents + hdr->sh_size | |
8896 | - sizeof (Elf_External_Verdaux); | |
8897 | ||
f631889e UD |
8898 | /* We know the number of entries in the section but not the maximum |
8899 | index. Therefore we have to run through all entries and find | |
8900 | the maximum. */ | |
252b5132 | 8901 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8902 | maxidx = 0; |
8903 | for (i = 0; i < hdr->sh_info; ++i) | |
8904 | { | |
8905 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8906 | ||
601a03ba AM |
8907 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8908 | goto error_return_bad_verdef; | |
062e2358 AM |
8909 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8910 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8911 | |
25ff461f AM |
8912 | if (iverdefmem.vd_next == 0) |
8913 | break; | |
8914 | ||
d0fb9a8d JJ |
8915 | if (iverdefmem.vd_next |
8916 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8917 | goto error_return_bad_verdef; |
d0fb9a8d | 8918 | |
f631889e UD |
8919 | everdef = ((Elf_External_Verdef *) |
8920 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8921 | } | |
8922 | ||
fc0e6df6 PB |
8923 | if (default_imported_symver) |
8924 | { | |
8925 | if (freeidx > maxidx) | |
8926 | maxidx = ++freeidx; | |
8927 | else | |
8928 | freeidx = ++maxidx; | |
8929 | } | |
1f4361a7 AM |
8930 | if (_bfd_mul_overflow (maxidx, sizeof (Elf_Internal_Verdef), &amt)) |
8931 | { | |
8932 | bfd_set_error (bfd_error_file_too_big); | |
8933 | goto error_return_verdef; | |
8934 | } | |
8935 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
f631889e | 8936 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8937 | goto error_return_verdef; |
f631889e UD |
8938 | |
8939 | elf_tdata (abfd)->cverdefs = maxidx; | |
8940 | ||
8941 | everdef = (Elf_External_Verdef *) contents; | |
8942 | iverdefarr = elf_tdata (abfd)->verdef; | |
8943 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8944 | { |
8945 | Elf_External_Verdaux *everdaux; | |
8946 | Elf_Internal_Verdaux *iverdaux; | |
8947 | unsigned int j; | |
8948 | ||
f631889e UD |
8949 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8950 | ||
d0fb9a8d | 8951 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8952 | goto error_return_bad_verdef; |
d0fb9a8d | 8953 | |
f631889e | 8954 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8955 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8956 | |
8957 | iverdef->vd_bfd = abfd; | |
8958 | ||
d0fb9a8d JJ |
8959 | if (iverdef->vd_cnt == 0) |
8960 | iverdef->vd_auxptr = NULL; | |
8961 | else | |
8962 | { | |
1f4361a7 AM |
8963 | if (_bfd_mul_overflow (iverdef->vd_cnt, |
8964 | sizeof (Elf_Internal_Verdaux), &amt)) | |
8965 | { | |
8966 | bfd_set_error (bfd_error_file_too_big); | |
8967 | goto error_return_verdef; | |
8968 | } | |
a50b1753 | 8969 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
1f4361a7 | 8970 | bfd_alloc (abfd, amt); |
d0fb9a8d JJ |
8971 | if (iverdef->vd_auxptr == NULL) |
8972 | goto error_return_verdef; | |
8973 | } | |
8974 | ||
8975 | if (iverdef->vd_aux | |
8976 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8977 | goto error_return_bad_verdef; |
252b5132 RH |
8978 | |
8979 | everdaux = ((Elf_External_Verdaux *) | |
8980 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8981 | iverdaux = iverdef->vd_auxptr; | |
8982 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8983 | { | |
8984 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8985 | ||
8986 | iverdaux->vda_nodename = | |
8987 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8988 | iverdaux->vda_name); | |
8989 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8990 | goto error_return_bad_verdef; |
252b5132 | 8991 | |
25ff461f AM |
8992 | iverdaux->vda_nextptr = NULL; |
8993 | if (iverdaux->vda_next == 0) | |
8994 | { | |
8995 | iverdef->vd_cnt = j + 1; | |
8996 | break; | |
8997 | } | |
252b5132 RH |
8998 | if (j + 1 < iverdef->vd_cnt) |
8999 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 9000 | |
d0fb9a8d JJ |
9001 | if (iverdaux->vda_next |
9002 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 9003 | goto error_return_bad_verdef; |
d0fb9a8d | 9004 | |
252b5132 RH |
9005 | everdaux = ((Elf_External_Verdaux *) |
9006 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
9007 | } | |
9008 | ||
595bce75 | 9009 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
9010 | if (iverdef->vd_cnt) |
9011 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 9012 | |
25ff461f AM |
9013 | iverdef->vd_nextdef = NULL; |
9014 | if (iverdef->vd_next == 0) | |
9015 | break; | |
d0fb9a8d | 9016 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 9017 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
9018 | |
9019 | everdef = ((Elf_External_Verdef *) | |
9020 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
9021 | } | |
9022 | ||
9023 | free (contents); | |
9024 | contents = NULL; | |
9025 | } | |
fc0e6df6 | 9026 | else if (default_imported_symver) |
252b5132 | 9027 | { |
fc0e6df6 PB |
9028 | if (freeidx < 3) |
9029 | freeidx = 3; | |
9030 | else | |
9031 | freeidx++; | |
252b5132 | 9032 | |
1f4361a7 AM |
9033 | if (_bfd_mul_overflow (freeidx, sizeof (Elf_Internal_Verdef), &amt)) |
9034 | { | |
9035 | bfd_set_error (bfd_error_file_too_big); | |
9036 | goto error_return; | |
9037 | } | |
9038 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt); | |
fc0e6df6 | 9039 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
9040 | goto error_return; |
9041 | ||
fc0e6df6 PB |
9042 | elf_tdata (abfd)->cverdefs = freeidx; |
9043 | } | |
252b5132 | 9044 | |
fc0e6df6 PB |
9045 | /* Create a default version based on the soname. */ |
9046 | if (default_imported_symver) | |
9047 | { | |
9048 | Elf_Internal_Verdef *iverdef; | |
9049 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 9050 | |
5bb3703f | 9051 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 9052 | |
fc0e6df6 PB |
9053 | iverdef->vd_version = VER_DEF_CURRENT; |
9054 | iverdef->vd_flags = 0; | |
9055 | iverdef->vd_ndx = freeidx; | |
9056 | iverdef->vd_cnt = 1; | |
252b5132 | 9057 | |
fc0e6df6 | 9058 | iverdef->vd_bfd = abfd; |
252b5132 | 9059 | |
fc0e6df6 PB |
9060 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
9061 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 9062 | goto error_return_verdef; |
fc0e6df6 | 9063 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
9064 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
9065 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
9066 | if (iverdef->vd_auxptr == NULL) |
9067 | goto error_return_verdef; | |
252b5132 | 9068 | |
fc0e6df6 PB |
9069 | iverdaux = iverdef->vd_auxptr; |
9070 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
9071 | } |
9072 | ||
0a1b45a2 | 9073 | return true; |
252b5132 RH |
9074 | |
9075 | error_return: | |
c9594989 | 9076 | free (contents); |
0a1b45a2 | 9077 | return false; |
252b5132 RH |
9078 | } |
9079 | \f | |
9080 | asymbol * | |
217aa764 | 9081 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
9082 | { |
9083 | elf_symbol_type *newsym; | |
9084 | ||
7a6e0d89 | 9085 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
9086 | if (!newsym) |
9087 | return NULL; | |
201159ec NC |
9088 | newsym->symbol.the_bfd = abfd; |
9089 | return &newsym->symbol; | |
252b5132 RH |
9090 | } |
9091 | ||
9092 | void | |
217aa764 AM |
9093 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
9094 | asymbol *symbol, | |
9095 | symbol_info *ret) | |
252b5132 RH |
9096 | { |
9097 | bfd_symbol_info (symbol, ret); | |
9098 | } | |
9099 | ||
9100 | /* Return whether a symbol name implies a local symbol. Most targets | |
9101 | use this function for the is_local_label_name entry point, but some | |
9102 | override it. */ | |
9103 | ||
0a1b45a2 | 9104 | bool |
217aa764 AM |
9105 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
9106 | const char *name) | |
252b5132 RH |
9107 | { |
9108 | /* Normal local symbols start with ``.L''. */ | |
9109 | if (name[0] == '.' && name[1] == 'L') | |
0a1b45a2 | 9110 | return true; |
252b5132 RH |
9111 | |
9112 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
9113 | DWARF debugging symbols starting with ``..''. */ | |
9114 | if (name[0] == '.' && name[1] == '.') | |
0a1b45a2 | 9115 | return true; |
252b5132 RH |
9116 | |
9117 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
9118 | emitting DWARF debugging output. I suspect this is actually a | |
9119 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
9120 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
9121 | underscore to be emitted on some ELF targets). For ease of use, | |
9122 | we treat such symbols as local. */ | |
9123 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
0a1b45a2 | 9124 | return true; |
252b5132 | 9125 | |
b1fa9dd6 NC |
9126 | /* Treat assembler generated fake symbols, dollar local labels and |
9127 | forward-backward labels (aka local labels) as locals. | |
9128 | These labels have the form: | |
9129 | ||
07d6d2b8 | 9130 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
9131 | |
9132 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
9133 | ||
9134 | Versions which start with .L will have already been matched above, | |
9135 | so we only need to match the rest. */ | |
9136 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
9137 | { | |
0a1b45a2 | 9138 | bool ret = false; |
b1fa9dd6 NC |
9139 | const char * p; |
9140 | char c; | |
9141 | ||
9142 | for (p = name + 2; (c = *p); p++) | |
9143 | { | |
9144 | if (c == 1 || c == 2) | |
9145 | { | |
9146 | if (c == 1 && p == name + 2) | |
9147 | /* A fake symbol. */ | |
0a1b45a2 | 9148 | return true; |
b1fa9dd6 NC |
9149 | |
9150 | /* FIXME: We are being paranoid here and treating symbols like | |
9151 | L0^Bfoo as if there were non-local, on the grounds that the | |
9152 | assembler will never generate them. But can any symbol | |
9153 | containing an ASCII value in the range 1-31 ever be anything | |
9154 | other than some kind of local ? */ | |
0a1b45a2 | 9155 | ret = true; |
b1fa9dd6 NC |
9156 | } |
9157 | ||
9158 | if (! ISDIGIT (c)) | |
9159 | { | |
0a1b45a2 | 9160 | ret = false; |
b1fa9dd6 NC |
9161 | break; |
9162 | } | |
9163 | } | |
9164 | return ret; | |
9165 | } | |
ffa54770 | 9166 | |
0a1b45a2 | 9167 | return false; |
252b5132 RH |
9168 | } |
9169 | ||
9170 | alent * | |
217aa764 AM |
9171 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9172 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9173 | { |
9174 | abort (); | |
9175 | return NULL; | |
9176 | } | |
9177 | ||
0a1b45a2 | 9178 | bool |
217aa764 AM |
9179 | _bfd_elf_set_arch_mach (bfd *abfd, |
9180 | enum bfd_architecture arch, | |
9181 | unsigned long machine) | |
252b5132 RH |
9182 | { |
9183 | /* If this isn't the right architecture for this backend, and this | |
9184 | isn't the generic backend, fail. */ | |
9185 | if (arch != get_elf_backend_data (abfd)->arch | |
9186 | && arch != bfd_arch_unknown | |
9187 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
0a1b45a2 | 9188 | return false; |
252b5132 RH |
9189 | |
9190 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9191 | } | |
9192 | ||
d1fad7c6 NC |
9193 | /* Find the nearest line to a particular section and offset, |
9194 | for error reporting. */ | |
9195 | ||
0a1b45a2 | 9196 | bool |
217aa764 | 9197 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9198 | asymbol **symbols, |
fb167eb2 | 9199 | asection *section, |
217aa764 AM |
9200 | bfd_vma offset, |
9201 | const char **filename_ptr, | |
9202 | const char **functionname_ptr, | |
fb167eb2 AM |
9203 | unsigned int *line_ptr, |
9204 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9205 | { |
0a1b45a2 | 9206 | bool found; |
d1fad7c6 | 9207 | |
fb167eb2 | 9208 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9209 | filename_ptr, functionname_ptr, |
fb167eb2 | 9210 | line_ptr, discriminator_ptr, |
9defd221 | 9211 | dwarf_debug_sections, |
e7679060 | 9212 | &elf_tdata (abfd)->dwarf2_find_line_info)) |
0a1b45a2 | 9213 | return true; |
e7679060 AM |
9214 | |
9215 | if (_bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9216 | filename_ptr, functionname_ptr, line_ptr)) | |
d1fad7c6 NC |
9217 | { |
9218 | if (!*functionname_ptr) | |
e00e8198 AM |
9219 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9220 | *filename_ptr ? NULL : filename_ptr, | |
9221 | functionname_ptr); | |
0a1b45a2 | 9222 | return true; |
d1fad7c6 NC |
9223 | } |
9224 | ||
9225 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9226 | &found, filename_ptr, |
9227 | functionname_ptr, line_ptr, | |
9228 | &elf_tdata (abfd)->line_info)) | |
0a1b45a2 | 9229 | return false; |
dc43ada5 | 9230 | if (found && (*functionname_ptr || *line_ptr)) |
0a1b45a2 | 9231 | return true; |
d1fad7c6 NC |
9232 | |
9233 | if (symbols == NULL) | |
0a1b45a2 | 9234 | return false; |
d1fad7c6 | 9235 | |
e00e8198 AM |
9236 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9237 | filename_ptr, functionname_ptr)) | |
0a1b45a2 | 9238 | return false; |
d1fad7c6 | 9239 | |
252b5132 | 9240 | *line_ptr = 0; |
0a1b45a2 | 9241 | return true; |
252b5132 RH |
9242 | } |
9243 | ||
5420f73d L |
9244 | /* Find the line for a symbol. */ |
9245 | ||
0a1b45a2 | 9246 | bool |
5420f73d L |
9247 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, |
9248 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9249 | { |
fb167eb2 AM |
9250 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9251 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9252 | dwarf_debug_sections, |
fb167eb2 | 9253 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9254 | } |
9255 | ||
4ab527b0 FF |
9256 | /* After a call to bfd_find_nearest_line, successive calls to |
9257 | bfd_find_inliner_info can be used to get source information about | |
9258 | each level of function inlining that terminated at the address | |
9259 | passed to bfd_find_nearest_line. Currently this is only supported | |
9260 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9261 | ||
0a1b45a2 | 9262 | bool |
4ab527b0 FF |
9263 | _bfd_elf_find_inliner_info (bfd *abfd, |
9264 | const char **filename_ptr, | |
9265 | const char **functionname_ptr, | |
9266 | unsigned int *line_ptr) | |
9267 | { | |
0a1b45a2 | 9268 | bool found; |
4ab527b0 FF |
9269 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, |
9270 | functionname_ptr, line_ptr, | |
9271 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9272 | return found; | |
9273 | } | |
9274 | ||
252b5132 | 9275 | int |
a6b96beb | 9276 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9277 | { |
8ded5a0f AM |
9278 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9279 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9280 | |
0e1862bb | 9281 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9282 | { |
12bd6957 | 9283 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9284 | |
62d7a5f6 AM |
9285 | if (phdr_size == (bfd_size_type) -1) |
9286 | { | |
9287 | struct elf_segment_map *m; | |
9288 | ||
9289 | phdr_size = 0; | |
12bd6957 | 9290 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9291 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9292 | |
62d7a5f6 AM |
9293 | if (phdr_size == 0) |
9294 | phdr_size = get_program_header_size (abfd, info); | |
9295 | } | |
8ded5a0f | 9296 | |
12bd6957 | 9297 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9298 | ret += phdr_size; |
9299 | } | |
9300 | ||
252b5132 RH |
9301 | return ret; |
9302 | } | |
9303 | ||
0a1b45a2 | 9304 | bool |
217aa764 AM |
9305 | _bfd_elf_set_section_contents (bfd *abfd, |
9306 | sec_ptr section, | |
0f867abe | 9307 | const void *location, |
217aa764 AM |
9308 | file_ptr offset, |
9309 | bfd_size_type count) | |
252b5132 RH |
9310 | { |
9311 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9312 | file_ptr pos; |
252b5132 RH |
9313 | |
9314 | if (! abfd->output_has_begun | |
217aa764 | 9315 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
0a1b45a2 | 9316 | return false; |
252b5132 | 9317 | |
0ce398f1 | 9318 | if (!count) |
0a1b45a2 | 9319 | return true; |
0ce398f1 | 9320 | |
252b5132 | 9321 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9322 | if (hdr->sh_offset == (file_ptr) -1) |
9323 | { | |
a0dcf297 NC |
9324 | unsigned char *contents; |
9325 | ||
1ff6de03 NA |
9326 | if (bfd_section_is_ctf (section)) |
9327 | /* Nothing to do with this section: the contents are generated | |
9328 | later. */ | |
0a1b45a2 | 9329 | return true; |
1ff6de03 | 9330 | |
a0dcf297 NC |
9331 | if ((section->flags & SEC_ELF_COMPRESS) == 0) |
9332 | { | |
9333 | _bfd_error_handler | |
9334 | (_("%pB:%pA: error: attempting to write into an unallocated compressed section"), | |
9335 | abfd, section); | |
9336 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9337 | return false; |
a0dcf297 NC |
9338 | } |
9339 | ||
9340 | if ((offset + count) > hdr->sh_size) | |
9341 | { | |
9342 | _bfd_error_handler | |
9343 | (_("%pB:%pA: error: attempting to write over the end of the section"), | |
9344 | abfd, section); | |
9345 | ||
9346 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9347 | return false; |
a0dcf297 NC |
9348 | } |
9349 | ||
9350 | contents = hdr->contents; | |
9351 | if (contents == NULL) | |
9352 | { | |
9353 | _bfd_error_handler | |
9354 | (_("%pB:%pA: error: attempting to write section into an empty buffer"), | |
9355 | abfd, section); | |
9356 | ||
9357 | bfd_set_error (bfd_error_invalid_operation); | |
0a1b45a2 | 9358 | return false; |
a0dcf297 NC |
9359 | } |
9360 | ||
0ce398f1 | 9361 | memcpy (contents + offset, location, count); |
0a1b45a2 | 9362 | return true; |
0ce398f1 | 9363 | } |
a0dcf297 | 9364 | |
dc810e39 AM |
9365 | pos = hdr->sh_offset + offset; |
9366 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9367 | || bfd_bwrite (location, count, abfd) != count) | |
0a1b45a2 | 9368 | return false; |
252b5132 | 9369 | |
0a1b45a2 | 9370 | return true; |
252b5132 RH |
9371 | } |
9372 | ||
0a1b45a2 | 9373 | bool |
217aa764 AM |
9374 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9375 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9376 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9377 | { |
9378 | abort (); | |
0a1b45a2 | 9379 | return false; |
252b5132 RH |
9380 | } |
9381 | ||
252b5132 RH |
9382 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9383 | ||
0a1b45a2 | 9384 | bool |
217aa764 | 9385 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9386 | { |
c044fabd | 9387 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9388 | |
9389 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9390 | { | |
9391 | bfd_reloc_code_real_type code; | |
9392 | reloc_howto_type *howto; | |
9393 | ||
9394 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9395 | equivalent ELF reloc. */ |
252b5132 RH |
9396 | |
9397 | if (areloc->howto->pc_relative) | |
9398 | { | |
9399 | switch (areloc->howto->bitsize) | |
9400 | { | |
9401 | case 8: | |
9402 | code = BFD_RELOC_8_PCREL; | |
9403 | break; | |
9404 | case 12: | |
9405 | code = BFD_RELOC_12_PCREL; | |
9406 | break; | |
9407 | case 16: | |
9408 | code = BFD_RELOC_16_PCREL; | |
9409 | break; | |
9410 | case 24: | |
9411 | code = BFD_RELOC_24_PCREL; | |
9412 | break; | |
9413 | case 32: | |
9414 | code = BFD_RELOC_32_PCREL; | |
9415 | break; | |
9416 | case 64: | |
9417 | code = BFD_RELOC_64_PCREL; | |
9418 | break; | |
9419 | default: | |
9420 | goto fail; | |
9421 | } | |
9422 | ||
9423 | howto = bfd_reloc_type_lookup (abfd, code); | |
9424 | ||
94698d01 | 9425 | if (howto && areloc->howto->pcrel_offset != howto->pcrel_offset) |
252b5132 RH |
9426 | { |
9427 | if (howto->pcrel_offset) | |
9428 | areloc->addend += areloc->address; | |
9429 | else | |
9430 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9431 | } | |
9432 | } | |
9433 | else | |
9434 | { | |
9435 | switch (areloc->howto->bitsize) | |
9436 | { | |
9437 | case 8: | |
9438 | code = BFD_RELOC_8; | |
9439 | break; | |
9440 | case 14: | |
9441 | code = BFD_RELOC_14; | |
9442 | break; | |
9443 | case 16: | |
9444 | code = BFD_RELOC_16; | |
9445 | break; | |
9446 | case 26: | |
9447 | code = BFD_RELOC_26; | |
9448 | break; | |
9449 | case 32: | |
9450 | code = BFD_RELOC_32; | |
9451 | break; | |
9452 | case 64: | |
9453 | code = BFD_RELOC_64; | |
9454 | break; | |
9455 | default: | |
9456 | goto fail; | |
9457 | } | |
9458 | ||
9459 | howto = bfd_reloc_type_lookup (abfd, code); | |
9460 | } | |
9461 | ||
9462 | if (howto) | |
9463 | areloc->howto = howto; | |
9464 | else | |
9465 | goto fail; | |
9466 | } | |
9467 | ||
0a1b45a2 | 9468 | return true; |
252b5132 RH |
9469 | |
9470 | fail: | |
0aa13fee AM |
9471 | /* xgettext:c-format */ |
9472 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9473 | abfd, areloc->howto->name); | |
9aea1e31 | 9474 | bfd_set_error (bfd_error_sorry); |
0a1b45a2 | 9475 | return false; |
252b5132 RH |
9476 | } |
9477 | ||
0a1b45a2 | 9478 | bool |
217aa764 | 9479 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9480 | { |
d9071b0c | 9481 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
0ed18fa1 AM |
9482 | if (tdata != NULL |
9483 | && (bfd_get_format (abfd) == bfd_object | |
9484 | || bfd_get_format (abfd) == bfd_core)) | |
252b5132 | 9485 | { |
c0355132 | 9486 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9487 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9488 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9489 | } |
9490 | ||
9491 | return _bfd_generic_close_and_cleanup (abfd); | |
9492 | } | |
9493 | ||
9494 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9495 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9496 | range-checking to interfere. There is nothing else to do in processing | |
9497 | this reloc. */ | |
9498 | ||
9499 | bfd_reloc_status_type | |
217aa764 AM |
9500 | _bfd_elf_rel_vtable_reloc_fn |
9501 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9502 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9503 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9504 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9505 | { |
9506 | return bfd_reloc_ok; | |
9507 | } | |
252b5132 RH |
9508 | \f |
9509 | /* Elf core file support. Much of this only works on native | |
9510 | toolchains, since we rely on knowing the | |
9511 | machine-dependent procfs structure in order to pick | |
c044fabd | 9512 | out details about the corefile. */ |
252b5132 RH |
9513 | |
9514 | #ifdef HAVE_SYS_PROCFS_H | |
9515 | # include <sys/procfs.h> | |
9516 | #endif | |
9517 | ||
261b8d08 PA |
9518 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9519 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9520 | |
9521 | static int | |
217aa764 | 9522 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9523 | { |
261b8d08 PA |
9524 | int pid; |
9525 | ||
228e534f | 9526 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9527 | if (pid == 0) |
228e534f | 9528 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9529 | |
9530 | return pid; | |
252b5132 RH |
9531 | } |
9532 | ||
252b5132 RH |
9533 | /* If there isn't a section called NAME, make one, using |
9534 | data from SECT. Note, this function will generate a | |
9535 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9536 | overwrite it. */ |
252b5132 | 9537 | |
0a1b45a2 | 9538 | static bool |
217aa764 | 9539 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9540 | { |
c044fabd | 9541 | asection *sect2; |
252b5132 RH |
9542 | |
9543 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
0a1b45a2 | 9544 | return true; |
252b5132 | 9545 | |
117ed4f8 | 9546 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9547 | if (sect2 == NULL) |
0a1b45a2 | 9548 | return false; |
252b5132 | 9549 | |
eea6121a | 9550 | sect2->size = sect->size; |
252b5132 | 9551 | sect2->filepos = sect->filepos; |
252b5132 | 9552 | sect2->alignment_power = sect->alignment_power; |
0a1b45a2 | 9553 | return true; |
252b5132 RH |
9554 | } |
9555 | ||
bb0082d6 AM |
9556 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9557 | actually creates up to two pseudosections: | |
9558 | - For the single-threaded case, a section named NAME, unless | |
9559 | such a section already exists. | |
9560 | - For the multi-threaded case, a section named "NAME/PID", where | |
9561 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9562 | Both pseudosections have identical contents. */ |
0a1b45a2 | 9563 | bool |
217aa764 AM |
9564 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9565 | char *name, | |
9566 | size_t size, | |
9567 | ufile_ptr filepos) | |
bb0082d6 AM |
9568 | { |
9569 | char buf[100]; | |
9570 | char *threaded_name; | |
d4c88bbb | 9571 | size_t len; |
bb0082d6 AM |
9572 | asection *sect; |
9573 | ||
9574 | /* Build the section name. */ | |
9575 | ||
9576 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9577 | len = strlen (buf) + 1; |
a50b1753 | 9578 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9579 | if (threaded_name == NULL) |
0a1b45a2 | 9580 | return false; |
d4c88bbb | 9581 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9582 | |
117ed4f8 AM |
9583 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9584 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9585 | if (sect == NULL) |
0a1b45a2 | 9586 | return false; |
eea6121a | 9587 | sect->size = size; |
bb0082d6 | 9588 | sect->filepos = filepos; |
bb0082d6 AM |
9589 | sect->alignment_power = 2; |
9590 | ||
936e320b | 9591 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9592 | } |
9593 | ||
0a1b45a2 | 9594 | static bool |
58e07198 CZ |
9595 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, |
9596 | size_t offs) | |
9597 | { | |
9598 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9599 | SEC_HAS_CONTENTS); | |
9600 | ||
9601 | if (sect == NULL) | |
0a1b45a2 | 9602 | return false; |
58e07198 CZ |
9603 | |
9604 | sect->size = note->descsz - offs; | |
9605 | sect->filepos = note->descpos + offs; | |
9606 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9607 | ||
0a1b45a2 | 9608 | return true; |
58e07198 CZ |
9609 | } |
9610 | ||
252b5132 | 9611 | /* prstatus_t exists on: |
4a938328 | 9612 | solaris 2.5+ |
252b5132 RH |
9613 | linux 2.[01] + glibc |
9614 | unixware 4.2 | |
9615 | */ | |
9616 | ||
9617 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9618 | |
0a1b45a2 | 9619 | static bool |
217aa764 | 9620 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9621 | { |
eea6121a | 9622 | size_t size; |
7ee38065 | 9623 | int offset; |
252b5132 | 9624 | |
4a938328 MS |
9625 | if (note->descsz == sizeof (prstatus_t)) |
9626 | { | |
9627 | prstatus_t prstat; | |
252b5132 | 9628 | |
eea6121a | 9629 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9630 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9631 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9632 | |
fa49d224 NC |
9633 | /* Do not overwrite the core signal if it |
9634 | has already been set by another thread. */ | |
228e534f AM |
9635 | if (elf_tdata (abfd)->core->signal == 0) |
9636 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9637 | if (elf_tdata (abfd)->core->pid == 0) | |
9638 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9639 | |
4a938328 MS |
9640 | /* pr_who exists on: |
9641 | solaris 2.5+ | |
9642 | unixware 4.2 | |
9643 | pr_who doesn't exist on: | |
9644 | linux 2.[01] | |
9645 | */ | |
252b5132 | 9646 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9647 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9648 | #else |
228e534f | 9649 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9650 | #endif |
4a938328 | 9651 | } |
7ee38065 | 9652 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9653 | else if (note->descsz == sizeof (prstatus32_t)) |
9654 | { | |
9655 | /* 64-bit host, 32-bit corefile */ | |
9656 | prstatus32_t prstat; | |
9657 | ||
eea6121a | 9658 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9659 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9660 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9661 | ||
fa49d224 NC |
9662 | /* Do not overwrite the core signal if it |
9663 | has already been set by another thread. */ | |
228e534f AM |
9664 | if (elf_tdata (abfd)->core->signal == 0) |
9665 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9666 | if (elf_tdata (abfd)->core->pid == 0) | |
9667 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9668 | |
9669 | /* pr_who exists on: | |
9670 | solaris 2.5+ | |
9671 | unixware 4.2 | |
9672 | pr_who doesn't exist on: | |
9673 | linux 2.[01] | |
9674 | */ | |
7ee38065 | 9675 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9676 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9677 | #else |
228e534f | 9678 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9679 | #endif |
9680 | } | |
7ee38065 | 9681 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9682 | else |
9683 | { | |
9684 | /* Fail - we don't know how to handle any other | |
9685 | note size (ie. data object type). */ | |
0a1b45a2 | 9686 | return true; |
4a938328 | 9687 | } |
252b5132 | 9688 | |
bb0082d6 | 9689 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9690 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9691 | size, note->descpos + offset); |
252b5132 RH |
9692 | } |
9693 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9694 | ||
bb0082d6 | 9695 | /* Create a pseudosection containing the exact contents of NOTE. */ |
0a1b45a2 | 9696 | static bool |
217aa764 AM |
9697 | elfcore_make_note_pseudosection (bfd *abfd, |
9698 | char *name, | |
9699 | Elf_Internal_Note *note) | |
252b5132 | 9700 | { |
936e320b AM |
9701 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9702 | note->descsz, note->descpos); | |
252b5132 RH |
9703 | } |
9704 | ||
ff08c6bb JB |
9705 | /* There isn't a consistent prfpregset_t across platforms, |
9706 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9707 | data structure apart. */ |
9708 | ||
0a1b45a2 | 9709 | static bool |
217aa764 | 9710 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9711 | { |
9712 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9713 | } | |
9714 | ||
ff08c6bb | 9715 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9716 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9717 | literally. */ |
c044fabd | 9718 | |
0a1b45a2 | 9719 | static bool |
217aa764 | 9720 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9721 | { |
9722 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9723 | } | |
9724 | ||
4339cae0 L |
9725 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9726 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9727 | contents literally. */ | |
9728 | ||
0a1b45a2 | 9729 | static bool |
4339cae0 L |
9730 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) |
9731 | { | |
9732 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9733 | } | |
9734 | ||
0a1b45a2 | 9735 | static bool |
97753bd5 AM |
9736 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) |
9737 | { | |
9738 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9739 | } | |
9740 | ||
0a1b45a2 | 9741 | static bool |
89eeb0bc LM |
9742 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) |
9743 | { | |
9744 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9745 | } | |
97753bd5 | 9746 | |
0a1b45a2 | 9747 | static bool |
cb2366c1 EBM |
9748 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) |
9749 | { | |
9750 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9751 | } | |
9752 | ||
0a1b45a2 | 9753 | static bool |
cb2366c1 EBM |
9754 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) |
9755 | { | |
9756 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9757 | } | |
9758 | ||
0a1b45a2 | 9759 | static bool |
cb2366c1 EBM |
9760 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) |
9761 | { | |
9762 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9763 | } | |
9764 | ||
0a1b45a2 | 9765 | static bool |
cb2366c1 EBM |
9766 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) |
9767 | { | |
9768 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9769 | } | |
9770 | ||
0a1b45a2 | 9771 | static bool |
cb2366c1 EBM |
9772 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) |
9773 | { | |
9774 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9775 | } | |
9776 | ||
0a1b45a2 | 9777 | static bool |
cb2366c1 EBM |
9778 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) |
9779 | { | |
9780 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9781 | } | |
9782 | ||
0a1b45a2 | 9783 | static bool |
cb2366c1 EBM |
9784 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) |
9785 | { | |
9786 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9787 | } | |
9788 | ||
0a1b45a2 | 9789 | static bool |
cb2366c1 EBM |
9790 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) |
9791 | { | |
9792 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9793 | } | |
9794 | ||
0a1b45a2 | 9795 | static bool |
cb2366c1 EBM |
9796 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) |
9797 | { | |
9798 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9799 | } | |
9800 | ||
0a1b45a2 | 9801 | static bool |
cb2366c1 EBM |
9802 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) |
9803 | { | |
9804 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9805 | } | |
9806 | ||
0a1b45a2 | 9807 | static bool |
cb2366c1 EBM |
9808 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) |
9809 | { | |
9810 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9811 | } | |
9812 | ||
0a1b45a2 | 9813 | static bool |
cb2366c1 EBM |
9814 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) |
9815 | { | |
9816 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9817 | } | |
9818 | ||
0a1b45a2 | 9819 | static bool |
cb2366c1 EBM |
9820 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) |
9821 | { | |
9822 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9823 | } | |
9824 | ||
0a1b45a2 | 9825 | static bool |
0675e188 UW |
9826 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) |
9827 | { | |
9828 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9829 | } | |
9830 | ||
0a1b45a2 | 9831 | static bool |
d7eeb400 MS |
9832 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) |
9833 | { | |
9834 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9835 | } | |
9836 | ||
0a1b45a2 | 9837 | static bool |
d7eeb400 MS |
9838 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) |
9839 | { | |
9840 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9841 | } | |
9842 | ||
0a1b45a2 | 9843 | static bool |
d7eeb400 MS |
9844 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) |
9845 | { | |
9846 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9847 | } | |
9848 | ||
0a1b45a2 | 9849 | static bool |
d7eeb400 MS |
9850 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) |
9851 | { | |
9852 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9853 | } | |
9854 | ||
0a1b45a2 | 9855 | static bool |
d7eeb400 MS |
9856 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) |
9857 | { | |
9858 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9859 | } | |
9860 | ||
0a1b45a2 | 9861 | static bool |
355b81d9 UW |
9862 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) |
9863 | { | |
9864 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9865 | } | |
9866 | ||
0a1b45a2 | 9867 | static bool |
355b81d9 UW |
9868 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) |
9869 | { | |
9870 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9871 | } | |
9872 | ||
0a1b45a2 | 9873 | static bool |
abb3f6cc NC |
9874 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) |
9875 | { | |
9876 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9877 | } | |
9878 | ||
0a1b45a2 | 9879 | static bool |
4ef9f41a AA |
9880 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) |
9881 | { | |
9882 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9883 | } | |
9884 | ||
0a1b45a2 | 9885 | static bool |
4ef9f41a AA |
9886 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) |
9887 | { | |
9888 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9889 | } | |
9890 | ||
0a1b45a2 | 9891 | static bool |
88ab90e8 AA |
9892 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) |
9893 | { | |
9894 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9895 | } | |
9896 | ||
0a1b45a2 | 9897 | static bool |
88ab90e8 AA |
9898 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) |
9899 | { | |
9900 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9901 | } | |
9902 | ||
0a1b45a2 | 9903 | static bool |
faa9a424 UW |
9904 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) |
9905 | { | |
9906 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9907 | } | |
9908 | ||
0a1b45a2 | 9909 | static bool |
652451f8 YZ |
9910 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) |
9911 | { | |
9912 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9913 | } | |
9914 | ||
0a1b45a2 | 9915 | static bool |
652451f8 YZ |
9916 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) |
9917 | { | |
9918 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9919 | } | |
9920 | ||
0a1b45a2 | 9921 | static bool |
652451f8 YZ |
9922 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) |
9923 | { | |
9924 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9925 | } | |
9926 | ||
0a1b45a2 | 9927 | static bool |
ad1cc4e4 AH |
9928 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) |
9929 | { | |
9930 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9931 | } | |
9932 | ||
0a1b45a2 | 9933 | static bool |
e6c3b5bf AH |
9934 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) |
9935 | { | |
9936 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9937 | } | |
9938 | ||
f0bbe8ba LM |
9939 | static bool |
9940 | elfcore_grok_aarch_mte (bfd *abfd, Elf_Internal_Note *note) | |
9941 | { | |
9942 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-mte", | |
9943 | note); | |
9944 | } | |
9945 | ||
0a1b45a2 | 9946 | static bool |
27456742 AK |
9947 | elfcore_grok_arc_v2 (bfd *abfd, Elf_Internal_Note *note) |
9948 | { | |
9949 | return elfcore_make_note_pseudosection (abfd, ".reg-arc-v2", note); | |
9950 | } | |
9951 | ||
db6092f3 AB |
9952 | /* Convert NOTE into a bfd_section called ".reg-riscv-csr". Return TRUE if |
9953 | successful otherwise, return FALSE. */ | |
9954 | ||
0a1b45a2 | 9955 | static bool |
db6092f3 AB |
9956 | elfcore_grok_riscv_csr (bfd *abfd, Elf_Internal_Note *note) |
9957 | { | |
9958 | return elfcore_make_note_pseudosection (abfd, ".reg-riscv-csr", note); | |
9959 | } | |
9960 | ||
b63a5e38 AB |
9961 | /* Convert NOTE into a bfd_section called ".gdb-tdesc". Return TRUE if |
9962 | successful otherwise, return FALSE. */ | |
9963 | ||
0a1b45a2 | 9964 | static bool |
b63a5e38 AB |
9965 | elfcore_grok_gdb_tdesc (bfd *abfd, Elf_Internal_Note *note) |
9966 | { | |
9967 | return elfcore_make_note_pseudosection (abfd, ".gdb-tdesc", note); | |
9968 | } | |
9969 | ||
252b5132 | 9970 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9971 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9972 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9973 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9974 | #endif | |
252b5132 RH |
9975 | #endif |
9976 | ||
9977 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9978 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9979 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9980 | typedef psinfo32_t elfcore_psinfo32_t; |
9981 | #endif | |
252b5132 RH |
9982 | #endif |
9983 | ||
252b5132 RH |
9984 | /* return a malloc'ed copy of a string at START which is at |
9985 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9986 | the copy will always have a terminating '\0'. */ |
252b5132 | 9987 | |
936e320b | 9988 | char * |
217aa764 | 9989 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9990 | { |
dc810e39 | 9991 | char *dups; |
a50b1753 | 9992 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9993 | size_t len; |
252b5132 RH |
9994 | |
9995 | if (end == NULL) | |
9996 | len = max; | |
9997 | else | |
9998 | len = end - start; | |
9999 | ||
a50b1753 | 10000 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 10001 | if (dups == NULL) |
252b5132 RH |
10002 | return NULL; |
10003 | ||
dc810e39 AM |
10004 | memcpy (dups, start, len); |
10005 | dups[len] = '\0'; | |
252b5132 | 10006 | |
dc810e39 | 10007 | return dups; |
252b5132 RH |
10008 | } |
10009 | ||
bb0082d6 | 10010 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
0a1b45a2 | 10011 | static bool |
217aa764 | 10012 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10013 | { |
4a938328 MS |
10014 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
10015 | { | |
10016 | elfcore_psinfo_t psinfo; | |
252b5132 | 10017 | |
7ee38065 | 10018 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 10019 | |
335e41d4 | 10020 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 10021 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 10022 | #endif |
228e534f | 10023 | elf_tdata (abfd)->core->program |
936e320b AM |
10024 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
10025 | sizeof (psinfo.pr_fname)); | |
252b5132 | 10026 | |
228e534f | 10027 | elf_tdata (abfd)->core->command |
936e320b AM |
10028 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
10029 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 10030 | } |
7ee38065 | 10031 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
10032 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
10033 | { | |
10034 | /* 64-bit host, 32-bit corefile */ | |
10035 | elfcore_psinfo32_t psinfo; | |
10036 | ||
7ee38065 | 10037 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 10038 | |
335e41d4 | 10039 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 10040 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 10041 | #endif |
228e534f | 10042 | elf_tdata (abfd)->core->program |
936e320b AM |
10043 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
10044 | sizeof (psinfo.pr_fname)); | |
4a938328 | 10045 | |
228e534f | 10046 | elf_tdata (abfd)->core->command |
936e320b AM |
10047 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
10048 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
10049 | } |
10050 | #endif | |
10051 | ||
10052 | else | |
10053 | { | |
10054 | /* Fail - we don't know how to handle any other | |
10055 | note size (ie. data object type). */ | |
0a1b45a2 | 10056 | return true; |
4a938328 | 10057 | } |
252b5132 RH |
10058 | |
10059 | /* Note that for some reason, a spurious space is tacked | |
10060 | onto the end of the args in some (at least one anyway) | |
c044fabd | 10061 | implementations, so strip it off if it exists. */ |
252b5132 RH |
10062 | |
10063 | { | |
228e534f | 10064 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
10065 | int n = strlen (command); |
10066 | ||
10067 | if (0 < n && command[n - 1] == ' ') | |
10068 | command[n - 1] = '\0'; | |
10069 | } | |
10070 | ||
0a1b45a2 | 10071 | return true; |
252b5132 RH |
10072 | } |
10073 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
10074 | ||
252b5132 | 10075 | #if defined (HAVE_PSTATUS_T) |
0a1b45a2 | 10076 | static bool |
217aa764 | 10077 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10078 | { |
f572a39d AM |
10079 | if (note->descsz == sizeof (pstatus_t) |
10080 | #if defined (HAVE_PXSTATUS_T) | |
10081 | || note->descsz == sizeof (pxstatus_t) | |
10082 | #endif | |
10083 | ) | |
4a938328 MS |
10084 | { |
10085 | pstatus_t pstat; | |
252b5132 | 10086 | |
4a938328 | 10087 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10088 | |
228e534f | 10089 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 10090 | } |
7ee38065 | 10091 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
10092 | else if (note->descsz == sizeof (pstatus32_t)) |
10093 | { | |
10094 | /* 64-bit host, 32-bit corefile */ | |
10095 | pstatus32_t pstat; | |
252b5132 | 10096 | |
4a938328 | 10097 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 10098 | |
228e534f | 10099 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
10100 | } |
10101 | #endif | |
252b5132 RH |
10102 | /* Could grab some more details from the "representative" |
10103 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 10104 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 10105 | |
0a1b45a2 | 10106 | return true; |
252b5132 RH |
10107 | } |
10108 | #endif /* defined (HAVE_PSTATUS_T) */ | |
10109 | ||
252b5132 | 10110 | #if defined (HAVE_LWPSTATUS_T) |
0a1b45a2 | 10111 | static bool |
217aa764 | 10112 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
10113 | { |
10114 | lwpstatus_t lwpstat; | |
10115 | char buf[100]; | |
c044fabd | 10116 | char *name; |
d4c88bbb | 10117 | size_t len; |
c044fabd | 10118 | asection *sect; |
252b5132 | 10119 | |
f572a39d AM |
10120 | if (note->descsz != sizeof (lwpstat) |
10121 | #if defined (HAVE_LWPXSTATUS_T) | |
10122 | && note->descsz != sizeof (lwpxstatus_t) | |
10123 | #endif | |
10124 | ) | |
0a1b45a2 | 10125 | return true; |
252b5132 RH |
10126 | |
10127 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
10128 | ||
228e534f | 10129 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
10130 | /* Do not overwrite the core signal if it has already been set by |
10131 | another thread. */ | |
228e534f AM |
10132 | if (elf_tdata (abfd)->core->signal == 0) |
10133 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 10134 | |
c044fabd | 10135 | /* Make a ".reg/999" section. */ |
252b5132 RH |
10136 | |
10137 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10138 | len = strlen (buf) + 1; |
217aa764 | 10139 | name = bfd_alloc (abfd, len); |
252b5132 | 10140 | if (name == NULL) |
0a1b45a2 | 10141 | return false; |
d4c88bbb | 10142 | memcpy (name, buf, len); |
252b5132 | 10143 | |
117ed4f8 | 10144 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10145 | if (sect == NULL) |
0a1b45a2 | 10146 | return false; |
252b5132 RH |
10147 | |
10148 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10149 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
10150 | sect->filepos = note->descpos |
10151 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
10152 | #endif | |
10153 | ||
10154 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 10155 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
10156 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
10157 | #endif | |
10158 | ||
252b5132 RH |
10159 | sect->alignment_power = 2; |
10160 | ||
10161 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
0a1b45a2 | 10162 | return false; |
252b5132 RH |
10163 | |
10164 | /* Make a ".reg2/999" section */ | |
10165 | ||
10166 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 10167 | len = strlen (buf) + 1; |
217aa764 | 10168 | name = bfd_alloc (abfd, len); |
252b5132 | 10169 | if (name == NULL) |
0a1b45a2 | 10170 | return false; |
d4c88bbb | 10171 | memcpy (name, buf, len); |
252b5132 | 10172 | |
117ed4f8 | 10173 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 10174 | if (sect == NULL) |
0a1b45a2 | 10175 | return false; |
252b5132 RH |
10176 | |
10177 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 10178 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
10179 | sect->filepos = note->descpos |
10180 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
10181 | #endif | |
10182 | ||
10183 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 10184 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
10185 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
10186 | #endif | |
10187 | ||
252b5132 RH |
10188 | sect->alignment_power = 2; |
10189 | ||
936e320b | 10190 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
10191 | } |
10192 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
10193 | ||
8fbac78b JT |
10194 | /* These constants, and the structure offsets used below, are defined by |
10195 | Cygwin's core_dump.h */ | |
10196 | #define NOTE_INFO_PROCESS 1 | |
10197 | #define NOTE_INFO_THREAD 2 | |
10198 | #define NOTE_INFO_MODULE 3 | |
d61f3d03 | 10199 | #define NOTE_INFO_MODULE64 4 |
8fbac78b | 10200 | |
0a1b45a2 | 10201 | static bool |
217aa764 | 10202 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
10203 | { |
10204 | char buf[30]; | |
c044fabd | 10205 | char *name; |
d4c88bbb | 10206 | size_t len; |
3cdad084 | 10207 | unsigned int name_size; |
c044fabd | 10208 | asection *sect; |
2fef9373 | 10209 | unsigned int type; |
4a6636fb PA |
10210 | int is_active_thread; |
10211 | bfd_vma base_addr; | |
16e9c715 | 10212 | |
04ec0fa2 | 10213 | if (note->descsz < 4) |
0a1b45a2 | 10214 | return true; |
16e9c715 | 10215 | |
08dedd66 | 10216 | if (! startswith (note->namedata, "win32")) |
0a1b45a2 | 10217 | return true; |
4a6636fb PA |
10218 | |
10219 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 10220 | |
7e0d77ef NC |
10221 | struct |
10222 | { | |
404ec933 JT |
10223 | const char *type_name; |
10224 | unsigned long min_size; | |
10225 | } size_check[] = | |
10226 | { | |
10227 | { "NOTE_INFO_PROCESS", 12 }, | |
10228 | { "NOTE_INFO_THREAD", 12 }, | |
10229 | { "NOTE_INFO_MODULE", 12 }, | |
10230 | { "NOTE_INFO_MODULE64", 16 }, | |
10231 | }; | |
10232 | ||
7e0d77ef | 10233 | if (type == 0 || type > (sizeof(size_check)/sizeof(size_check[0]))) |
0a1b45a2 | 10234 | return true; |
404ec933 JT |
10235 | |
10236 | if (note->descsz < size_check[type - 1].min_size) | |
10237 | { | |
10238 | _bfd_error_handler (_("%pB: warning: win32pstatus %s of size %lu bytes is too small"), | |
10239 | abfd, size_check[type - 1].type_name, note->descsz); | |
0a1b45a2 | 10240 | return true; |
404ec933 JT |
10241 | } |
10242 | ||
4a6636fb | 10243 | switch (type) |
16e9c715 | 10244 | { |
8fbac78b | 10245 | case NOTE_INFO_PROCESS: |
228e534f | 10246 | /* FIXME: need to add ->core->command. */ |
ff2084b9 | 10247 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 4); |
ff2084b9 | 10248 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 8); |
c044fabd | 10249 | break; |
16e9c715 | 10250 | |
8fbac78b | 10251 | case NOTE_INFO_THREAD: |
ff2084b9 JT |
10252 | /* Make a ".reg/<tid>" section containing the Win32 API thread CONTEXT |
10253 | structure. */ | |
4a6636fb | 10254 | /* thread_info.tid */ |
ff2084b9 | 10255 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 4)); |
c044fabd | 10256 | |
d4c88bbb | 10257 | len = strlen (buf) + 1; |
a50b1753 | 10258 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10259 | if (name == NULL) |
0a1b45a2 | 10260 | return false; |
c044fabd | 10261 | |
d4c88bbb | 10262 | memcpy (name, buf, len); |
16e9c715 | 10263 | |
117ed4f8 | 10264 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10265 | if (sect == NULL) |
0a1b45a2 | 10266 | return false; |
c044fabd | 10267 | |
4a6636fb | 10268 | /* sizeof (thread_info.thread_context) */ |
03c29a6f | 10269 | sect->size = note->descsz - 12; |
4a6636fb PA |
10270 | /* offsetof (thread_info.thread_context) */ |
10271 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10272 | sect->alignment_power = 2; |
10273 | ||
4a6636fb PA |
10274 | /* thread_info.is_active_thread */ |
10275 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10276 | ||
10277 | if (is_active_thread) | |
16e9c715 | 10278 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
0a1b45a2 | 10279 | return false; |
16e9c715 NC |
10280 | break; |
10281 | ||
8fbac78b | 10282 | case NOTE_INFO_MODULE: |
d61f3d03 | 10283 | case NOTE_INFO_MODULE64: |
16e9c715 | 10284 | /* Make a ".module/xxxxxxxx" section. */ |
d61f3d03 JT |
10285 | if (type == NOTE_INFO_MODULE) |
10286 | { | |
d61f3d03 JT |
10287 | /* module_info.base_address */ |
10288 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
10289 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); | |
10290 | /* module_info.module_name_size */ | |
10291 | name_size = bfd_get_32 (abfd, note->descdata + 8); | |
10292 | } | |
10293 | else /* NOTE_INFO_MODULE64 */ | |
10294 | { | |
d61f3d03 JT |
10295 | /* module_info.base_address */ |
10296 | base_addr = bfd_get_64 (abfd, note->descdata + 4); | |
10297 | sprintf (buf, ".module/%016lx", (unsigned long) base_addr); | |
10298 | /* module_info.module_name_size */ | |
10299 | name_size = bfd_get_32 (abfd, note->descdata + 12); | |
10300 | } | |
c044fabd | 10301 | |
d4c88bbb | 10302 | len = strlen (buf) + 1; |
a50b1753 | 10303 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10304 | if (name == NULL) |
0a1b45a2 | 10305 | return false; |
c044fabd | 10306 | |
d4c88bbb | 10307 | memcpy (name, buf, len); |
252b5132 | 10308 | |
117ed4f8 | 10309 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10310 | |
16e9c715 | 10311 | if (sect == NULL) |
0a1b45a2 | 10312 | return false; |
c044fabd | 10313 | |
04ec0fa2 | 10314 | if (note->descsz < 12 + name_size) |
404ec933 | 10315 | { |
3cdad084 | 10316 | _bfd_error_handler (_("%pB: win32pstatus NOTE_INFO_MODULE of size %lu is too small to contain a name of size %u"), |
404ec933 | 10317 | abfd, note->descsz, name_size); |
0a1b45a2 | 10318 | return true; |
404ec933 | 10319 | } |
04ec0fa2 | 10320 | |
eea6121a | 10321 | sect->size = note->descsz; |
16e9c715 | 10322 | sect->filepos = note->descpos; |
16e9c715 NC |
10323 | sect->alignment_power = 2; |
10324 | break; | |
10325 | ||
10326 | default: | |
0a1b45a2 | 10327 | return true; |
16e9c715 NC |
10328 | } |
10329 | ||
0a1b45a2 | 10330 | return true; |
16e9c715 | 10331 | } |
252b5132 | 10332 | |
0a1b45a2 | 10333 | static bool |
217aa764 | 10334 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10335 | { |
9c5bfbb7 | 10336 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10337 | |
252b5132 RH |
10338 | switch (note->type) |
10339 | { | |
10340 | default: | |
0a1b45a2 | 10341 | return true; |
252b5132 | 10342 | |
252b5132 | 10343 | case NT_PRSTATUS: |
bb0082d6 AM |
10344 | if (bed->elf_backend_grok_prstatus) |
10345 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
0a1b45a2 | 10346 | return true; |
bb0082d6 | 10347 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10348 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10349 | #else |
0a1b45a2 | 10350 | return true; |
252b5132 RH |
10351 | #endif |
10352 | ||
10353 | #if defined (HAVE_PSTATUS_T) | |
10354 | case NT_PSTATUS: | |
10355 | return elfcore_grok_pstatus (abfd, note); | |
10356 | #endif | |
10357 | ||
10358 | #if defined (HAVE_LWPSTATUS_T) | |
10359 | case NT_LWPSTATUS: | |
10360 | return elfcore_grok_lwpstatus (abfd, note); | |
10361 | #endif | |
10362 | ||
10363 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10364 | return elfcore_grok_prfpreg (abfd, note); | |
10365 | ||
c044fabd | 10366 | case NT_WIN32PSTATUS: |
16e9c715 | 10367 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10368 | |
c044fabd | 10369 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10370 | if (note->namesz == 6 |
10371 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10372 | return elfcore_grok_prxfpreg (abfd, note); |
10373 | else | |
0a1b45a2 | 10374 | return true; |
ff08c6bb | 10375 | |
4339cae0 L |
10376 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10377 | if (note->namesz == 6 | |
10378 | && strcmp (note->namedata, "LINUX") == 0) | |
10379 | return elfcore_grok_xstatereg (abfd, note); | |
10380 | else | |
0a1b45a2 | 10381 | return true; |
4339cae0 | 10382 | |
97753bd5 AM |
10383 | case NT_PPC_VMX: |
10384 | if (note->namesz == 6 | |
10385 | && strcmp (note->namedata, "LINUX") == 0) | |
10386 | return elfcore_grok_ppc_vmx (abfd, note); | |
10387 | else | |
0a1b45a2 | 10388 | return true; |
97753bd5 | 10389 | |
89eeb0bc LM |
10390 | case NT_PPC_VSX: |
10391 | if (note->namesz == 6 | |
07d6d2b8 AM |
10392 | && strcmp (note->namedata, "LINUX") == 0) |
10393 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10394 | else |
0a1b45a2 | 10395 | return true; |
89eeb0bc | 10396 | |
cb2366c1 EBM |
10397 | case NT_PPC_TAR: |
10398 | if (note->namesz == 6 | |
4b24dd1a AM |
10399 | && strcmp (note->namedata, "LINUX") == 0) |
10400 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10401 | else |
0a1b45a2 | 10402 | return true; |
cb2366c1 EBM |
10403 | |
10404 | case NT_PPC_PPR: | |
10405 | if (note->namesz == 6 | |
4b24dd1a AM |
10406 | && strcmp (note->namedata, "LINUX") == 0) |
10407 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10408 | else |
0a1b45a2 | 10409 | return true; |
cb2366c1 EBM |
10410 | |
10411 | case NT_PPC_DSCR: | |
10412 | if (note->namesz == 6 | |
4b24dd1a AM |
10413 | && strcmp (note->namedata, "LINUX") == 0) |
10414 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10415 | else |
0a1b45a2 | 10416 | return true; |
cb2366c1 EBM |
10417 | |
10418 | case NT_PPC_EBB: | |
10419 | if (note->namesz == 6 | |
4b24dd1a AM |
10420 | && strcmp (note->namedata, "LINUX") == 0) |
10421 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10422 | else |
0a1b45a2 | 10423 | return true; |
cb2366c1 EBM |
10424 | |
10425 | case NT_PPC_PMU: | |
10426 | if (note->namesz == 6 | |
4b24dd1a AM |
10427 | && strcmp (note->namedata, "LINUX") == 0) |
10428 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10429 | else |
0a1b45a2 | 10430 | return true; |
cb2366c1 EBM |
10431 | |
10432 | case NT_PPC_TM_CGPR: | |
10433 | if (note->namesz == 6 | |
4b24dd1a AM |
10434 | && strcmp (note->namedata, "LINUX") == 0) |
10435 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10436 | else |
0a1b45a2 | 10437 | return true; |
cb2366c1 EBM |
10438 | |
10439 | case NT_PPC_TM_CFPR: | |
10440 | if (note->namesz == 6 | |
4b24dd1a AM |
10441 | && strcmp (note->namedata, "LINUX") == 0) |
10442 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10443 | else |
0a1b45a2 | 10444 | return true; |
cb2366c1 EBM |
10445 | |
10446 | case NT_PPC_TM_CVMX: | |
10447 | if (note->namesz == 6 | |
4b24dd1a AM |
10448 | && strcmp (note->namedata, "LINUX") == 0) |
10449 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10450 | else |
0a1b45a2 | 10451 | return true; |
cb2366c1 EBM |
10452 | |
10453 | case NT_PPC_TM_CVSX: | |
10454 | if (note->namesz == 6 | |
4b24dd1a AM |
10455 | && strcmp (note->namedata, "LINUX") == 0) |
10456 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10457 | else |
0a1b45a2 | 10458 | return true; |
cb2366c1 EBM |
10459 | |
10460 | case NT_PPC_TM_SPR: | |
10461 | if (note->namesz == 6 | |
4b24dd1a AM |
10462 | && strcmp (note->namedata, "LINUX") == 0) |
10463 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10464 | else |
0a1b45a2 | 10465 | return true; |
cb2366c1 EBM |
10466 | |
10467 | case NT_PPC_TM_CTAR: | |
10468 | if (note->namesz == 6 | |
4b24dd1a AM |
10469 | && strcmp (note->namedata, "LINUX") == 0) |
10470 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10471 | else |
0a1b45a2 | 10472 | return true; |
cb2366c1 EBM |
10473 | |
10474 | case NT_PPC_TM_CPPR: | |
10475 | if (note->namesz == 6 | |
4b24dd1a AM |
10476 | && strcmp (note->namedata, "LINUX") == 0) |
10477 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10478 | else |
0a1b45a2 | 10479 | return true; |
cb2366c1 EBM |
10480 | |
10481 | case NT_PPC_TM_CDSCR: | |
10482 | if (note->namesz == 6 | |
4b24dd1a AM |
10483 | && strcmp (note->namedata, "LINUX") == 0) |
10484 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10485 | else |
0a1b45a2 | 10486 | return true; |
cb2366c1 | 10487 | |
0675e188 UW |
10488 | case NT_S390_HIGH_GPRS: |
10489 | if (note->namesz == 6 | |
07d6d2b8 AM |
10490 | && strcmp (note->namedata, "LINUX") == 0) |
10491 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10492 | else |
0a1b45a2 | 10493 | return true; |
0675e188 | 10494 | |
d7eeb400 MS |
10495 | case NT_S390_TIMER: |
10496 | if (note->namesz == 6 | |
07d6d2b8 AM |
10497 | && strcmp (note->namedata, "LINUX") == 0) |
10498 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10499 | else |
0a1b45a2 | 10500 | return true; |
d7eeb400 MS |
10501 | |
10502 | case NT_S390_TODCMP: | |
10503 | if (note->namesz == 6 | |
07d6d2b8 AM |
10504 | && strcmp (note->namedata, "LINUX") == 0) |
10505 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10506 | else |
0a1b45a2 | 10507 | return true; |
d7eeb400 MS |
10508 | |
10509 | case NT_S390_TODPREG: | |
10510 | if (note->namesz == 6 | |
07d6d2b8 AM |
10511 | && strcmp (note->namedata, "LINUX") == 0) |
10512 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10513 | else |
0a1b45a2 | 10514 | return true; |
d7eeb400 MS |
10515 | |
10516 | case NT_S390_CTRS: | |
10517 | if (note->namesz == 6 | |
07d6d2b8 AM |
10518 | && strcmp (note->namedata, "LINUX") == 0) |
10519 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10520 | else |
0a1b45a2 | 10521 | return true; |
d7eeb400 MS |
10522 | |
10523 | case NT_S390_PREFIX: | |
10524 | if (note->namesz == 6 | |
07d6d2b8 AM |
10525 | && strcmp (note->namedata, "LINUX") == 0) |
10526 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10527 | else |
0a1b45a2 | 10528 | return true; |
d7eeb400 | 10529 | |
355b81d9 UW |
10530 | case NT_S390_LAST_BREAK: |
10531 | if (note->namesz == 6 | |
07d6d2b8 AM |
10532 | && strcmp (note->namedata, "LINUX") == 0) |
10533 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10534 | else |
0a1b45a2 | 10535 | return true; |
355b81d9 UW |
10536 | |
10537 | case NT_S390_SYSTEM_CALL: | |
10538 | if (note->namesz == 6 | |
07d6d2b8 AM |
10539 | && strcmp (note->namedata, "LINUX") == 0) |
10540 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10541 | else |
0a1b45a2 | 10542 | return true; |
355b81d9 | 10543 | |
abb3f6cc NC |
10544 | case NT_S390_TDB: |
10545 | if (note->namesz == 6 | |
07d6d2b8 AM |
10546 | && strcmp (note->namedata, "LINUX") == 0) |
10547 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10548 | else |
0a1b45a2 | 10549 | return true; |
abb3f6cc | 10550 | |
4ef9f41a AA |
10551 | case NT_S390_VXRS_LOW: |
10552 | if (note->namesz == 6 | |
10553 | && strcmp (note->namedata, "LINUX") == 0) | |
10554 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10555 | else | |
0a1b45a2 | 10556 | return true; |
4ef9f41a AA |
10557 | |
10558 | case NT_S390_VXRS_HIGH: | |
10559 | if (note->namesz == 6 | |
10560 | && strcmp (note->namedata, "LINUX") == 0) | |
10561 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10562 | else | |
0a1b45a2 | 10563 | return true; |
4ef9f41a | 10564 | |
88ab90e8 AA |
10565 | case NT_S390_GS_CB: |
10566 | if (note->namesz == 6 | |
10567 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10568 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 | 10569 | else |
0a1b45a2 | 10570 | return true; |
88ab90e8 AA |
10571 | |
10572 | case NT_S390_GS_BC: | |
10573 | if (note->namesz == 6 | |
10574 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10575 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 | 10576 | else |
0a1b45a2 | 10577 | return true; |
88ab90e8 | 10578 | |
27456742 AK |
10579 | case NT_ARC_V2: |
10580 | if (note->namesz == 6 | |
10581 | && strcmp (note->namedata, "LINUX") == 0) | |
10582 | return elfcore_grok_arc_v2 (abfd, note); | |
10583 | else | |
0a1b45a2 | 10584 | return true; |
27456742 | 10585 | |
faa9a424 UW |
10586 | case NT_ARM_VFP: |
10587 | if (note->namesz == 6 | |
10588 | && strcmp (note->namedata, "LINUX") == 0) | |
10589 | return elfcore_grok_arm_vfp (abfd, note); | |
10590 | else | |
0a1b45a2 | 10591 | return true; |
faa9a424 | 10592 | |
652451f8 YZ |
10593 | case NT_ARM_TLS: |
10594 | if (note->namesz == 6 | |
10595 | && strcmp (note->namedata, "LINUX") == 0) | |
10596 | return elfcore_grok_aarch_tls (abfd, note); | |
10597 | else | |
0a1b45a2 | 10598 | return true; |
652451f8 YZ |
10599 | |
10600 | case NT_ARM_HW_BREAK: | |
10601 | if (note->namesz == 6 | |
10602 | && strcmp (note->namedata, "LINUX") == 0) | |
10603 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10604 | else | |
0a1b45a2 | 10605 | return true; |
652451f8 YZ |
10606 | |
10607 | case NT_ARM_HW_WATCH: | |
10608 | if (note->namesz == 6 | |
10609 | && strcmp (note->namedata, "LINUX") == 0) | |
10610 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10611 | else | |
0a1b45a2 | 10612 | return true; |
652451f8 | 10613 | |
ad1cc4e4 AH |
10614 | case NT_ARM_SVE: |
10615 | if (note->namesz == 6 | |
10616 | && strcmp (note->namedata, "LINUX") == 0) | |
10617 | return elfcore_grok_aarch_sve (abfd, note); | |
10618 | else | |
0a1b45a2 | 10619 | return true; |
ad1cc4e4 | 10620 | |
e6c3b5bf AH |
10621 | case NT_ARM_PAC_MASK: |
10622 | if (note->namesz == 6 | |
10623 | && strcmp (note->namedata, "LINUX") == 0) | |
10624 | return elfcore_grok_aarch_pauth (abfd, note); | |
10625 | else | |
0a1b45a2 | 10626 | return true; |
e6c3b5bf | 10627 | |
f0bbe8ba LM |
10628 | case NT_ARM_TAGGED_ADDR_CTRL: |
10629 | if (note->namesz == 6 | |
10630 | && strcmp (note->namedata, "LINUX") == 0) | |
10631 | return elfcore_grok_aarch_mte (abfd, note); | |
10632 | else | |
10633 | return true; | |
10634 | ||
b63a5e38 AB |
10635 | case NT_GDB_TDESC: |
10636 | if (note->namesz == 4 | |
10637 | && strcmp (note->namedata, "GDB") == 0) | |
10638 | return elfcore_grok_gdb_tdesc (abfd, note); | |
10639 | else | |
0a1b45a2 | 10640 | return true; |
b63a5e38 | 10641 | |
db6092f3 AB |
10642 | case NT_RISCV_CSR: |
10643 | if (note->namesz == 4 | |
10644 | && strcmp (note->namedata, "GDB") == 0) | |
10645 | return elfcore_grok_riscv_csr (abfd, note); | |
10646 | else | |
0a1b45a2 | 10647 | return true; |
db6092f3 | 10648 | |
252b5132 RH |
10649 | case NT_PRPSINFO: |
10650 | case NT_PSINFO: | |
bb0082d6 AM |
10651 | if (bed->elf_backend_grok_psinfo) |
10652 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
0a1b45a2 | 10653 | return true; |
bb0082d6 | 10654 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10655 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10656 | #else |
0a1b45a2 | 10657 | return true; |
252b5132 | 10658 | #endif |
3333a7c3 RM |
10659 | |
10660 | case NT_AUXV: | |
58e07198 | 10661 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10662 | |
451b7c33 TT |
10663 | case NT_FILE: |
10664 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10665 | note); | |
10666 | ||
9015683b TT |
10667 | case NT_SIGINFO: |
10668 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10669 | note); | |
5b2c414d | 10670 | |
252b5132 RH |
10671 | } |
10672 | } | |
10673 | ||
0a1b45a2 | 10674 | static bool |
718175fa JK |
10675 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) |
10676 | { | |
c74f7d1c | 10677 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10678 | |
10679 | if (note->descsz == 0) | |
0a1b45a2 | 10680 | return false; |
30e8ee25 | 10681 | |
c74f7d1c JT |
10682 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10683 | if (build_id == NULL) | |
0a1b45a2 | 10684 | return false; |
718175fa | 10685 | |
c74f7d1c JT |
10686 | build_id->size = note->descsz; |
10687 | memcpy (build_id->data, note->descdata, note->descsz); | |
10688 | abfd->build_id = build_id; | |
718175fa | 10689 | |
0a1b45a2 | 10690 | return true; |
718175fa JK |
10691 | } |
10692 | ||
0a1b45a2 | 10693 | static bool |
718175fa JK |
10694 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) |
10695 | { | |
10696 | switch (note->type) | |
10697 | { | |
10698 | default: | |
0a1b45a2 | 10699 | return true; |
718175fa | 10700 | |
46bed679 L |
10701 | case NT_GNU_PROPERTY_TYPE_0: |
10702 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10703 | ||
718175fa JK |
10704 | case NT_GNU_BUILD_ID: |
10705 | return elfobj_grok_gnu_build_id (abfd, note); | |
10706 | } | |
10707 | } | |
10708 | ||
0a1b45a2 | 10709 | static bool |
e21e5835 NC |
10710 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) |
10711 | { | |
10712 | struct sdt_note *cur = | |
7a6e0d89 AM |
10713 | (struct sdt_note *) bfd_alloc (abfd, |
10714 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10715 | |
10716 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10717 | cur->size = (bfd_size_type) note->descsz; | |
10718 | memcpy (cur->data, note->descdata, note->descsz); | |
10719 | ||
10720 | elf_tdata (abfd)->sdt_note_head = cur; | |
10721 | ||
0a1b45a2 | 10722 | return true; |
e21e5835 NC |
10723 | } |
10724 | ||
0a1b45a2 | 10725 | static bool |
e21e5835 NC |
10726 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) |
10727 | { | |
10728 | switch (note->type) | |
10729 | { | |
10730 | case NT_STAPSDT: | |
10731 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10732 | ||
10733 | default: | |
0a1b45a2 | 10734 | return true; |
e21e5835 NC |
10735 | } |
10736 | } | |
10737 | ||
0a1b45a2 | 10738 | static bool |
aa1ed4a9 JB |
10739 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) |
10740 | { | |
10741 | size_t offset; | |
10742 | ||
b5430a3c | 10743 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10744 | { |
b5430a3c | 10745 | case ELFCLASS32: |
0064d223 | 10746 | if (note->descsz < 108) |
0a1b45a2 | 10747 | return false; |
aa1ed4a9 JB |
10748 | break; |
10749 | ||
b5430a3c | 10750 | case ELFCLASS64: |
0064d223 | 10751 | if (note->descsz < 120) |
0a1b45a2 | 10752 | return false; |
aa1ed4a9 JB |
10753 | break; |
10754 | ||
10755 | default: | |
0a1b45a2 | 10756 | return false; |
aa1ed4a9 JB |
10757 | } |
10758 | ||
0064d223 JB |
10759 | /* Check for version 1 in pr_version. */ |
10760 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
0a1b45a2 | 10761 | return false; |
80a04378 | 10762 | |
0064d223 JB |
10763 | offset = 4; |
10764 | ||
10765 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10766 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10767 | offset += 4; |
10768 | else | |
10769 | { | |
10770 | offset += 4; /* Padding before pr_psinfosz. */ | |
10771 | offset += 8; | |
10772 | } | |
10773 | ||
aa1ed4a9 JB |
10774 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10775 | elf_tdata (abfd)->core->program | |
10776 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10777 | offset += 17; | |
10778 | ||
10779 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10780 | elf_tdata (abfd)->core->command | |
10781 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10782 | offset += 81; |
10783 | ||
10784 | /* Padding before pr_pid. */ | |
10785 | offset += 2; | |
10786 | ||
10787 | /* The pr_pid field was added in version "1a". */ | |
10788 | if (note->descsz < offset + 4) | |
0a1b45a2 | 10789 | return true; |
0064d223 JB |
10790 | |
10791 | elf_tdata (abfd)->core->pid | |
10792 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 | 10793 | |
0a1b45a2 | 10794 | return true; |
aa1ed4a9 JB |
10795 | } |
10796 | ||
0a1b45a2 | 10797 | static bool |
aa1ed4a9 JB |
10798 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) |
10799 | { | |
10800 | size_t offset; | |
10801 | size_t size; | |
24d3e51b | 10802 | size_t min_size; |
aa1ed4a9 | 10803 | |
24d3e51b NC |
10804 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10805 | Also compute minimum size of this note. */ | |
b5430a3c | 10806 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10807 | { |
b5430a3c | 10808 | case ELFCLASS32: |
24d3e51b NC |
10809 | offset = 4 + 4; |
10810 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10811 | break; |
10812 | ||
b5430a3c | 10813 | case ELFCLASS64: |
24d3e51b NC |
10814 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10815 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10816 | break; |
10817 | ||
10818 | default: | |
0a1b45a2 | 10819 | return false; |
aa1ed4a9 JB |
10820 | } |
10821 | ||
24d3e51b | 10822 | if (note->descsz < min_size) |
0a1b45a2 | 10823 | return false; |
24d3e51b NC |
10824 | |
10825 | /* Check for version 1 in pr_version. */ | |
10826 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
0a1b45a2 | 10827 | return false; |
aa1ed4a9 | 10828 | |
24d3e51b NC |
10829 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10830 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10831 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10832 | { |
10833 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10834 | offset += 4 * 2; | |
10835 | } | |
b5430a3c | 10836 | else |
24d3e51b NC |
10837 | { |
10838 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10839 | offset += 8 * 2; | |
10840 | } | |
aa1ed4a9 | 10841 | |
24d3e51b | 10842 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10843 | offset += 4; |
10844 | ||
24d3e51b | 10845 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10846 | if (elf_tdata (abfd)->core->signal == 0) |
10847 | elf_tdata (abfd)->core->signal | |
10848 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10849 | offset += 4; | |
10850 | ||
24d3e51b | 10851 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10852 | elf_tdata (abfd)->core->lwpid |
10853 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10854 | offset += 4; | |
10855 | ||
24d3e51b | 10856 | /* Padding before pr_reg. */ |
b5430a3c | 10857 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10858 | offset += 4; |
10859 | ||
24d3e51b NC |
10860 | /* Make sure that there is enough data remaining in the note. */ |
10861 | if ((note->descsz - offset) < size) | |
0a1b45a2 | 10862 | return false; |
24d3e51b | 10863 | |
aa1ed4a9 JB |
10864 | /* Make a ".reg/999" section and a ".reg" section. */ |
10865 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10866 | size, note->descpos + offset); | |
10867 | } | |
10868 | ||
0a1b45a2 | 10869 | static bool |
aa1ed4a9 JB |
10870 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) |
10871 | { | |
544c67cd JB |
10872 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10873 | ||
aa1ed4a9 JB |
10874 | switch (note->type) |
10875 | { | |
10876 | case NT_PRSTATUS: | |
544c67cd JB |
10877 | if (bed->elf_backend_grok_freebsd_prstatus) |
10878 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
0a1b45a2 | 10879 | return true; |
aa1ed4a9 JB |
10880 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10881 | ||
10882 | case NT_FPREGSET: | |
10883 | return elfcore_grok_prfpreg (abfd, note); | |
10884 | ||
10885 | case NT_PRPSINFO: | |
10886 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10887 | ||
10888 | case NT_FREEBSD_THRMISC: | |
10889 | if (note->namesz == 8) | |
10890 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10891 | else | |
0a1b45a2 | 10892 | return true; |
aa1ed4a9 | 10893 | |
ddb2bbcf JB |
10894 | case NT_FREEBSD_PROCSTAT_PROC: |
10895 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10896 | note); | |
10897 | ||
10898 | case NT_FREEBSD_PROCSTAT_FILES: | |
10899 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10900 | note); | |
10901 | ||
10902 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10903 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10904 | note); | |
10905 | ||
3350c5f5 | 10906 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10907 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10908 | |
aa1ed4a9 JB |
10909 | case NT_X86_XSTATE: |
10910 | if (note->namesz == 8) | |
10911 | return elfcore_grok_xstatereg (abfd, note); | |
10912 | else | |
0a1b45a2 | 10913 | return true; |
aa1ed4a9 | 10914 | |
e6f3b9c3 JB |
10915 | case NT_FREEBSD_PTLWPINFO: |
10916 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10917 | note); | |
10918 | ||
6d5be5d6 JB |
10919 | case NT_ARM_VFP: |
10920 | return elfcore_grok_arm_vfp (abfd, note); | |
10921 | ||
aa1ed4a9 | 10922 | default: |
0a1b45a2 | 10923 | return true; |
aa1ed4a9 JB |
10924 | } |
10925 | } | |
10926 | ||
0a1b45a2 | 10927 | static bool |
217aa764 | 10928 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10929 | { |
10930 | char *cp; | |
10931 | ||
10932 | cp = strchr (note->namedata, '@'); | |
10933 | if (cp != NULL) | |
10934 | { | |
d2b64500 | 10935 | *lwpidp = atoi(cp + 1); |
0a1b45a2 | 10936 | return true; |
50b2bdb7 | 10937 | } |
0a1b45a2 | 10938 | return false; |
50b2bdb7 AM |
10939 | } |
10940 | ||
0a1b45a2 | 10941 | static bool |
217aa764 | 10942 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10943 | { |
80a04378 | 10944 | if (note->descsz <= 0x7c + 31) |
0a1b45a2 | 10945 | return false; |
80a04378 | 10946 | |
50b2bdb7 | 10947 | /* Signal number at offset 0x08. */ |
228e534f | 10948 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10949 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10950 | ||
10951 | /* Process ID at offset 0x50. */ | |
228e534f | 10952 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10953 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10954 | ||
10955 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10956 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10957 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10958 | ||
7720ba9f MK |
10959 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10960 | note); | |
50b2bdb7 AM |
10961 | } |
10962 | ||
0a1b45a2 | 10963 | static bool |
217aa764 | 10964 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10965 | { |
10966 | int lwp; | |
10967 | ||
10968 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10969 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10970 | |
58e07198 | 10971 | switch (note->type) |
50b2bdb7 | 10972 | { |
58e07198 | 10973 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10974 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10975 | find this note before any of the others, which is fine, |
10976 | since the kernel writes this note out first when it | |
10977 | creates a core file. */ | |
50b2bdb7 | 10978 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10979 | case NT_NETBSDCORE_AUXV: |
10980 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10981 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
06d949ec KR |
10982 | case NT_NETBSDCORE_LWPSTATUS: |
10983 | return elfcore_make_note_pseudosection (abfd, | |
10984 | ".note.netbsdcore.lwpstatus", | |
10985 | note); | |
58e07198 CZ |
10986 | default: |
10987 | break; | |
50b2bdb7 AM |
10988 | } |
10989 | ||
06d949ec | 10990 | /* As of March 2020 there are no other machine-independent notes |
b4db1224 JT |
10991 | defined for NetBSD core files. If the note type is less |
10992 | than the start of the machine-dependent note types, we don't | |
10993 | understand it. */ | |
47d9a591 | 10994 | |
b4db1224 | 10995 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
0a1b45a2 | 10996 | return true; |
50b2bdb7 AM |
10997 | |
10998 | ||
10999 | switch (bfd_get_arch (abfd)) | |
11000 | { | |
08a40648 AM |
11001 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
11002 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 | 11003 | |
015ec493 | 11004 | case bfd_arch_aarch64: |
50b2bdb7 AM |
11005 | case bfd_arch_alpha: |
11006 | case bfd_arch_sparc: | |
11007 | switch (note->type) | |
08a40648 AM |
11008 | { |
11009 | case NT_NETBSDCORE_FIRSTMACH+0: | |
11010 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 11011 | |
08a40648 AM |
11012 | case NT_NETBSDCORE_FIRSTMACH+2: |
11013 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 11014 | |
08a40648 | 11015 | default: |
0a1b45a2 | 11016 | return true; |
08a40648 | 11017 | } |
50b2bdb7 | 11018 | |
58e07198 CZ |
11019 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
11020 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
11021 | structure which lacks GBR. */ | |
11022 | ||
11023 | case bfd_arch_sh: | |
11024 | switch (note->type) | |
11025 | { | |
11026 | case NT_NETBSDCORE_FIRSTMACH+3: | |
11027 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11028 | ||
11029 | case NT_NETBSDCORE_FIRSTMACH+5: | |
11030 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11031 | ||
11032 | default: | |
0a1b45a2 | 11033 | return true; |
58e07198 CZ |
11034 | } |
11035 | ||
08a40648 AM |
11036 | /* On all other arch's, PT_GETREGS == mach+1 and |
11037 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
11038 | |
11039 | default: | |
11040 | switch (note->type) | |
08a40648 AM |
11041 | { |
11042 | case NT_NETBSDCORE_FIRSTMACH+1: | |
11043 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 11044 | |
08a40648 AM |
11045 | case NT_NETBSDCORE_FIRSTMACH+3: |
11046 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 11047 | |
08a40648 | 11048 | default: |
0a1b45a2 | 11049 | return true; |
08a40648 | 11050 | } |
50b2bdb7 AM |
11051 | } |
11052 | /* NOTREACHED */ | |
11053 | } | |
11054 | ||
0a1b45a2 | 11055 | static bool |
67cc5033 MK |
11056 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
11057 | { | |
80a04378 | 11058 | if (note->descsz <= 0x48 + 31) |
0a1b45a2 | 11059 | return false; |
80a04378 | 11060 | |
67cc5033 | 11061 | /* Signal number at offset 0x08. */ |
228e534f | 11062 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
11063 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
11064 | ||
11065 | /* Process ID at offset 0x20. */ | |
228e534f | 11066 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
11067 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
11068 | ||
11069 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 11070 | elf_tdata (abfd)->core->command |
67cc5033 MK |
11071 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
11072 | ||
0a1b45a2 | 11073 | return true; |
67cc5033 MK |
11074 | } |
11075 | ||
0a1b45a2 | 11076 | static bool |
67cc5033 MK |
11077 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) |
11078 | { | |
11079 | if (note->type == NT_OPENBSD_PROCINFO) | |
11080 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
11081 | ||
11082 | if (note->type == NT_OPENBSD_REGS) | |
11083 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
11084 | ||
11085 | if (note->type == NT_OPENBSD_FPREGS) | |
11086 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
11087 | ||
11088 | if (note->type == NT_OPENBSD_XFPREGS) | |
11089 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
11090 | ||
11091 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 11092 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
11093 | |
11094 | if (note->type == NT_OPENBSD_WCOOKIE) | |
11095 | { | |
11096 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
11097 | SEC_HAS_CONTENTS); | |
11098 | ||
11099 | if (sect == NULL) | |
0a1b45a2 | 11100 | return false; |
67cc5033 MK |
11101 | sect->size = note->descsz; |
11102 | sect->filepos = note->descpos; | |
11103 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
11104 | ||
0a1b45a2 | 11105 | return true; |
67cc5033 MK |
11106 | } |
11107 | ||
0a1b45a2 | 11108 | return true; |
67cc5033 MK |
11109 | } |
11110 | ||
0a1b45a2 | 11111 | static bool |
d3fd4074 | 11112 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
11113 | { |
11114 | void *ddata = note->descdata; | |
11115 | char buf[100]; | |
11116 | char *name; | |
11117 | asection *sect; | |
f8843e87 AM |
11118 | short sig; |
11119 | unsigned flags; | |
07c6e936 | 11120 | |
80a04378 | 11121 | if (note->descsz < 16) |
0a1b45a2 | 11122 | return false; |
80a04378 | 11123 | |
07c6e936 | 11124 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 11125 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 11126 | |
f8843e87 AM |
11127 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
11128 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
11129 | ||
11130 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
11131 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
11132 | |
11133 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
11134 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
11135 | { | |
228e534f AM |
11136 | elf_tdata (abfd)->core->signal = sig; |
11137 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 11138 | } |
07c6e936 | 11139 | |
f8843e87 AM |
11140 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
11141 | do not come from signals so we make sure we set the current | |
11142 | thread just in case. */ | |
11143 | if (flags & 0x00000080) | |
228e534f | 11144 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
11145 | |
11146 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 11147 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 11148 | |
a50b1753 | 11149 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 | 11150 | if (name == NULL) |
0a1b45a2 | 11151 | return false; |
07c6e936 NC |
11152 | strcpy (name, buf); |
11153 | ||
117ed4f8 | 11154 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 | 11155 | if (sect == NULL) |
0a1b45a2 | 11156 | return false; |
07c6e936 | 11157 | |
07d6d2b8 AM |
11158 | sect->size = note->descsz; |
11159 | sect->filepos = note->descpos; | |
07c6e936 NC |
11160 | sect->alignment_power = 2; |
11161 | ||
11162 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
11163 | } | |
11164 | ||
0a1b45a2 | 11165 | static bool |
d69f560c KW |
11166 | elfcore_grok_nto_regs (bfd *abfd, |
11167 | Elf_Internal_Note *note, | |
d3fd4074 | 11168 | long tid, |
d69f560c | 11169 | char *base) |
07c6e936 NC |
11170 | { |
11171 | char buf[100]; | |
11172 | char *name; | |
11173 | asection *sect; | |
11174 | ||
d69f560c | 11175 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 11176 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 11177 | |
a50b1753 | 11178 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 | 11179 | if (name == NULL) |
0a1b45a2 | 11180 | return false; |
07c6e936 NC |
11181 | strcpy (name, buf); |
11182 | ||
117ed4f8 | 11183 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 | 11184 | if (sect == NULL) |
0a1b45a2 | 11185 | return false; |
07c6e936 | 11186 | |
07d6d2b8 AM |
11187 | sect->size = note->descsz; |
11188 | sect->filepos = note->descpos; | |
07c6e936 NC |
11189 | sect->alignment_power = 2; |
11190 | ||
f8843e87 | 11191 | /* This is the current thread. */ |
228e534f | 11192 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 11193 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 | 11194 | |
0a1b45a2 | 11195 | return true; |
07c6e936 NC |
11196 | } |
11197 | ||
11198 | #define BFD_QNT_CORE_INFO 7 | |
11199 | #define BFD_QNT_CORE_STATUS 8 | |
11200 | #define BFD_QNT_CORE_GREG 9 | |
11201 | #define BFD_QNT_CORE_FPREG 10 | |
11202 | ||
0a1b45a2 | 11203 | static bool |
217aa764 | 11204 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
11205 | { |
11206 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 11207 | tid from the previous call to pass down to the next gregs |
07c6e936 | 11208 | function. */ |
d3fd4074 | 11209 | static long tid = 1; |
07c6e936 NC |
11210 | |
11211 | switch (note->type) | |
11212 | { | |
d69f560c KW |
11213 | case BFD_QNT_CORE_INFO: |
11214 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
11215 | case BFD_QNT_CORE_STATUS: | |
11216 | return elfcore_grok_nto_status (abfd, note, &tid); | |
11217 | case BFD_QNT_CORE_GREG: | |
11218 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
11219 | case BFD_QNT_CORE_FPREG: | |
11220 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
11221 | default: | |
0a1b45a2 | 11222 | return true; |
07c6e936 NC |
11223 | } |
11224 | } | |
11225 | ||
0a1b45a2 | 11226 | static bool |
b15fa79e AM |
11227 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) |
11228 | { | |
11229 | char *name; | |
11230 | asection *sect; | |
11231 | size_t len; | |
11232 | ||
11233 | /* Use note name as section name. */ | |
11234 | len = note->namesz; | |
a50b1753 | 11235 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e | 11236 | if (name == NULL) |
0a1b45a2 | 11237 | return false; |
b15fa79e AM |
11238 | memcpy (name, note->namedata, len); |
11239 | name[len - 1] = '\0'; | |
11240 | ||
11241 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
11242 | if (sect == NULL) | |
0a1b45a2 | 11243 | return false; |
b15fa79e | 11244 | |
07d6d2b8 AM |
11245 | sect->size = note->descsz; |
11246 | sect->filepos = note->descpos; | |
b15fa79e AM |
11247 | sect->alignment_power = 1; |
11248 | ||
0a1b45a2 | 11249 | return true; |
b15fa79e AM |
11250 | } |
11251 | ||
7c76fa91 MS |
11252 | /* Function: elfcore_write_note |
11253 | ||
47d9a591 | 11254 | Inputs: |
a39f3346 | 11255 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
11256 | name of note |
11257 | type of note | |
11258 | data for note | |
11259 | size of data for note | |
11260 | ||
a39f3346 AM |
11261 | Writes note to end of buffer. ELF64 notes are written exactly as |
11262 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
11263 | that they ought to have 8-byte namesz and descsz field, and have | |
11264 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
11265 | ||
7c76fa91 | 11266 | Return: |
a39f3346 | 11267 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
11268 | |
11269 | char * | |
a39f3346 | 11270 | elfcore_write_note (bfd *abfd, |
217aa764 | 11271 | char *buf, |
a39f3346 | 11272 | int *bufsiz, |
217aa764 | 11273 | const char *name, |
a39f3346 | 11274 | int type, |
217aa764 | 11275 | const void *input, |
a39f3346 | 11276 | int size) |
7c76fa91 MS |
11277 | { |
11278 | Elf_External_Note *xnp; | |
d4c88bbb | 11279 | size_t namesz; |
d4c88bbb | 11280 | size_t newspace; |
a39f3346 | 11281 | char *dest; |
7c76fa91 | 11282 | |
d4c88bbb | 11283 | namesz = 0; |
d4c88bbb | 11284 | if (name != NULL) |
a39f3346 | 11285 | namesz = strlen (name) + 1; |
d4c88bbb | 11286 | |
a39f3346 | 11287 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 11288 | |
a50b1753 | 11289 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
11290 | if (buf == NULL) |
11291 | return buf; | |
a39f3346 | 11292 | dest = buf + *bufsiz; |
7c76fa91 MS |
11293 | *bufsiz += newspace; |
11294 | xnp = (Elf_External_Note *) dest; | |
11295 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
11296 | H_PUT_32 (abfd, size, xnp->descsz); | |
11297 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
11298 | dest = xnp->name; |
11299 | if (name != NULL) | |
11300 | { | |
11301 | memcpy (dest, name, namesz); | |
11302 | dest += namesz; | |
a39f3346 | 11303 | while (namesz & 3) |
d4c88bbb AM |
11304 | { |
11305 | *dest++ = '\0'; | |
a39f3346 | 11306 | ++namesz; |
d4c88bbb AM |
11307 | } |
11308 | } | |
11309 | memcpy (dest, input, size); | |
a39f3346 AM |
11310 | dest += size; |
11311 | while (size & 3) | |
11312 | { | |
11313 | *dest++ = '\0'; | |
11314 | ++size; | |
11315 | } | |
11316 | return buf; | |
7c76fa91 MS |
11317 | } |
11318 | ||
602f1657 AM |
11319 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11320 | possible string truncation. The "truncation" is not a bug. We | |
11321 | have an external representation of structs with fields that are not | |
11322 | necessarily NULL terminated and corresponding internal | |
11323 | representation fields that are one larger so that they can always | |
11324 | be NULL terminated. | |
11325 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11326 | diagnostics inside functions, giving a hard error if you try to use | |
11327 | the finer control available with later versions. | |
11328 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11329 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11330 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11331 | (*) Depending on your system header files! */ | |
d99b4b92 | 11332 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11333 | # pragma GCC diagnostic push |
11334 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11335 | #endif |
7c76fa91 | 11336 | char * |
217aa764 AM |
11337 | elfcore_write_prpsinfo (bfd *abfd, |
11338 | char *buf, | |
11339 | int *bufsiz, | |
11340 | const char *fname, | |
11341 | const char *psargs) | |
7c76fa91 | 11342 | { |
183e98be AM |
11343 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11344 | ||
11345 | if (bed->elf_backend_write_core_note != NULL) | |
11346 | { | |
11347 | char *ret; | |
11348 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11349 | NT_PRPSINFO, fname, psargs); | |
11350 | if (ret != NULL) | |
11351 | return ret; | |
11352 | } | |
7c76fa91 | 11353 | |
1f20dca5 | 11354 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11355 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11356 | if (bed->s->elfclass == ELFCLASS32) |
11357 | { | |
602f1657 | 11358 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11359 | psinfo32_t data; |
11360 | int note_type = NT_PSINFO; | |
602f1657 | 11361 | # else |
183e98be AM |
11362 | prpsinfo32_t data; |
11363 | int note_type = NT_PRPSINFO; | |
602f1657 | 11364 | # endif |
183e98be AM |
11365 | |
11366 | memset (&data, 0, sizeof (data)); | |
11367 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11368 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11369 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11370 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11371 | } |
11372 | else | |
602f1657 | 11373 | # endif |
183e98be | 11374 | { |
602f1657 | 11375 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11376 | psinfo_t data; |
11377 | int note_type = NT_PSINFO; | |
602f1657 | 11378 | # else |
183e98be AM |
11379 | prpsinfo_t data; |
11380 | int note_type = NT_PRPSINFO; | |
602f1657 | 11381 | # endif |
7c76fa91 | 11382 | |
183e98be AM |
11383 | memset (&data, 0, sizeof (data)); |
11384 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11385 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11386 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11387 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11388 | } |
7c76fa91 MS |
11389 | #endif /* PSINFO_T or PRPSINFO_T */ |
11390 | ||
1f20dca5 UW |
11391 | free (buf); |
11392 | return NULL; | |
11393 | } | |
d99b4b92 | 11394 | #if GCC_VERSION >= 8000 |
602f1657 | 11395 | # pragma GCC diagnostic pop |
d99b4b92 | 11396 | #endif |
1f20dca5 | 11397 | |
70a38d42 SDJ |
11398 | char * |
11399 | elfcore_write_linux_prpsinfo32 | |
11400 | (bfd *abfd, char *buf, int *bufsiz, | |
11401 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11402 | { | |
a2f63b2e MR |
11403 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11404 | { | |
11405 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11406 | ||
11407 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11408 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11409 | &data, sizeof (data)); | |
11410 | } | |
11411 | else | |
11412 | { | |
11413 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11414 | |
a2f63b2e MR |
11415 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11416 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11417 | &data, sizeof (data)); | |
11418 | } | |
70a38d42 SDJ |
11419 | } |
11420 | ||
11421 | char * | |
11422 | elfcore_write_linux_prpsinfo64 | |
11423 | (bfd *abfd, char *buf, int *bufsiz, | |
11424 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11425 | { | |
3c9a7b0d MR |
11426 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11427 | { | |
11428 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11429 | ||
11430 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11431 | return elfcore_write_note (abfd, buf, bufsiz, | |
11432 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11433 | } | |
11434 | else | |
11435 | { | |
11436 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11437 | |
3c9a7b0d MR |
11438 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11439 | return elfcore_write_note (abfd, buf, bufsiz, | |
11440 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11441 | } | |
70a38d42 SDJ |
11442 | } |
11443 | ||
7c76fa91 | 11444 | char * |
217aa764 AM |
11445 | elfcore_write_prstatus (bfd *abfd, |
11446 | char *buf, | |
11447 | int *bufsiz, | |
11448 | long pid, | |
11449 | int cursig, | |
11450 | const void *gregs) | |
7c76fa91 | 11451 | { |
183e98be | 11452 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11453 | |
183e98be AM |
11454 | if (bed->elf_backend_write_core_note != NULL) |
11455 | { | |
11456 | char *ret; | |
11457 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11458 | NT_PRSTATUS, | |
11459 | pid, cursig, gregs); | |
11460 | if (ret != NULL) | |
11461 | return ret; | |
11462 | } | |
11463 | ||
1f20dca5 | 11464 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11465 | #if defined (HAVE_PRSTATUS32_T) |
11466 | if (bed->s->elfclass == ELFCLASS32) | |
11467 | { | |
11468 | prstatus32_t prstat; | |
11469 | ||
11470 | memset (&prstat, 0, sizeof (prstat)); | |
11471 | prstat.pr_pid = pid; | |
11472 | prstat.pr_cursig = cursig; | |
11473 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11474 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11475 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11476 | } | |
11477 | else | |
11478 | #endif | |
11479 | { | |
11480 | prstatus_t prstat; | |
11481 | ||
11482 | memset (&prstat, 0, sizeof (prstat)); | |
11483 | prstat.pr_pid = pid; | |
11484 | prstat.pr_cursig = cursig; | |
11485 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11486 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11487 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11488 | } | |
7c76fa91 MS |
11489 | #endif /* HAVE_PRSTATUS_T */ |
11490 | ||
1f20dca5 UW |
11491 | free (buf); |
11492 | return NULL; | |
11493 | } | |
11494 | ||
51316059 MS |
11495 | #if defined (HAVE_LWPSTATUS_T) |
11496 | char * | |
217aa764 AM |
11497 | elfcore_write_lwpstatus (bfd *abfd, |
11498 | char *buf, | |
11499 | int *bufsiz, | |
11500 | long pid, | |
11501 | int cursig, | |
11502 | const void *gregs) | |
51316059 MS |
11503 | { |
11504 | lwpstatus_t lwpstat; | |
183e98be | 11505 | const char *note_name = "CORE"; |
51316059 MS |
11506 | |
11507 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11508 | lwpstat.pr_lwpid = pid >> 16; | |
11509 | lwpstat.pr_cursig = cursig; | |
11510 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11511 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11512 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11513 | #if !defined(gregs) | |
11514 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11515 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11516 | #else | |
11517 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11518 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11519 | #endif | |
11520 | #endif | |
47d9a591 | 11521 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11522 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11523 | } | |
11524 | #endif /* HAVE_LWPSTATUS_T */ | |
11525 | ||
7c76fa91 MS |
11526 | #if defined (HAVE_PSTATUS_T) |
11527 | char * | |
217aa764 AM |
11528 | elfcore_write_pstatus (bfd *abfd, |
11529 | char *buf, | |
11530 | int *bufsiz, | |
11531 | long pid, | |
6c10990d NC |
11532 | int cursig ATTRIBUTE_UNUSED, |
11533 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11534 | { |
183e98be AM |
11535 | const char *note_name = "CORE"; |
11536 | #if defined (HAVE_PSTATUS32_T) | |
11537 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11538 | |
183e98be AM |
11539 | if (bed->s->elfclass == ELFCLASS32) |
11540 | { | |
11541 | pstatus32_t pstat; | |
11542 | ||
11543 | memset (&pstat, 0, sizeof (pstat)); | |
11544 | pstat.pr_pid = pid & 0xffff; | |
11545 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11546 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11547 | return buf; | |
11548 | } | |
11549 | else | |
11550 | #endif | |
11551 | { | |
11552 | pstatus_t pstat; | |
11553 | ||
11554 | memset (&pstat, 0, sizeof (pstat)); | |
11555 | pstat.pr_pid = pid & 0xffff; | |
11556 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11557 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11558 | return buf; | |
11559 | } | |
7c76fa91 MS |
11560 | } |
11561 | #endif /* HAVE_PSTATUS_T */ | |
11562 | ||
11563 | char * | |
217aa764 AM |
11564 | elfcore_write_prfpreg (bfd *abfd, |
11565 | char *buf, | |
11566 | int *bufsiz, | |
11567 | const void *fpregs, | |
11568 | int size) | |
7c76fa91 | 11569 | { |
183e98be | 11570 | const char *note_name = "CORE"; |
47d9a591 | 11571 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11572 | note_name, NT_FPREGSET, fpregs, size); |
11573 | } | |
11574 | ||
11575 | char * | |
217aa764 AM |
11576 | elfcore_write_prxfpreg (bfd *abfd, |
11577 | char *buf, | |
11578 | int *bufsiz, | |
11579 | const void *xfpregs, | |
11580 | int size) | |
7c76fa91 MS |
11581 | { |
11582 | char *note_name = "LINUX"; | |
47d9a591 | 11583 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11584 | note_name, NT_PRXFPREG, xfpregs, size); |
11585 | } | |
11586 | ||
4339cae0 L |
11587 | char * |
11588 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11589 | const void *xfpregs, int size) | |
11590 | { | |
97de3545 JB |
11591 | char *note_name; |
11592 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11593 | note_name = "FreeBSD"; | |
11594 | else | |
11595 | note_name = "LINUX"; | |
4339cae0 L |
11596 | return elfcore_write_note (abfd, buf, bufsiz, |
11597 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11598 | } | |
11599 | ||
97753bd5 AM |
11600 | char * |
11601 | elfcore_write_ppc_vmx (bfd *abfd, | |
11602 | char *buf, | |
11603 | int *bufsiz, | |
11604 | const void *ppc_vmx, | |
11605 | int size) | |
11606 | { | |
11607 | char *note_name = "LINUX"; | |
11608 | return elfcore_write_note (abfd, buf, bufsiz, | |
11609 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11610 | } | |
11611 | ||
89eeb0bc LM |
11612 | char * |
11613 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11614 | char *buf, |
11615 | int *bufsiz, | |
11616 | const void *ppc_vsx, | |
11617 | int size) | |
89eeb0bc LM |
11618 | { |
11619 | char *note_name = "LINUX"; | |
11620 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11621 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11622 | } |
11623 | ||
cb2366c1 EBM |
11624 | char * |
11625 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11626 | char *buf, |
11627 | int *bufsiz, | |
11628 | const void *ppc_tar, | |
11629 | int size) | |
cb2366c1 EBM |
11630 | { |
11631 | char *note_name = "LINUX"; | |
11632 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11633 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11634 | } |
11635 | ||
11636 | char * | |
11637 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11638 | char *buf, |
11639 | int *bufsiz, | |
11640 | const void *ppc_ppr, | |
11641 | int size) | |
cb2366c1 EBM |
11642 | { |
11643 | char *note_name = "LINUX"; | |
11644 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11645 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11646 | } |
11647 | ||
11648 | char * | |
11649 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11650 | char *buf, |
11651 | int *bufsiz, | |
11652 | const void *ppc_dscr, | |
11653 | int size) | |
cb2366c1 EBM |
11654 | { |
11655 | char *note_name = "LINUX"; | |
11656 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11657 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11658 | } |
11659 | ||
11660 | char * | |
11661 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11662 | char *buf, |
11663 | int *bufsiz, | |
11664 | const void *ppc_ebb, | |
11665 | int size) | |
cb2366c1 EBM |
11666 | { |
11667 | char *note_name = "LINUX"; | |
11668 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11669 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11670 | } |
11671 | ||
11672 | char * | |
11673 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11674 | char *buf, |
11675 | int *bufsiz, | |
11676 | const void *ppc_pmu, | |
11677 | int size) | |
cb2366c1 EBM |
11678 | { |
11679 | char *note_name = "LINUX"; | |
11680 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11681 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11682 | } |
11683 | ||
11684 | char * | |
11685 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11686 | char *buf, |
11687 | int *bufsiz, | |
11688 | const void *ppc_tm_cgpr, | |
11689 | int size) | |
cb2366c1 EBM |
11690 | { |
11691 | char *note_name = "LINUX"; | |
11692 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11693 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11694 | } |
11695 | ||
11696 | char * | |
11697 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11698 | char *buf, |
11699 | int *bufsiz, | |
11700 | const void *ppc_tm_cfpr, | |
11701 | int size) | |
cb2366c1 EBM |
11702 | { |
11703 | char *note_name = "LINUX"; | |
11704 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11705 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11706 | } |
11707 | ||
11708 | char * | |
11709 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11710 | char *buf, |
11711 | int *bufsiz, | |
11712 | const void *ppc_tm_cvmx, | |
11713 | int size) | |
cb2366c1 EBM |
11714 | { |
11715 | char *note_name = "LINUX"; | |
11716 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11717 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11718 | } |
11719 | ||
11720 | char * | |
11721 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11722 | char *buf, |
11723 | int *bufsiz, | |
11724 | const void *ppc_tm_cvsx, | |
11725 | int size) | |
cb2366c1 EBM |
11726 | { |
11727 | char *note_name = "LINUX"; | |
11728 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11729 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11730 | } |
11731 | ||
11732 | char * | |
11733 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11734 | char *buf, |
11735 | int *bufsiz, | |
11736 | const void *ppc_tm_spr, | |
11737 | int size) | |
cb2366c1 EBM |
11738 | { |
11739 | char *note_name = "LINUX"; | |
11740 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11741 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11742 | } |
11743 | ||
11744 | char * | |
11745 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11746 | char *buf, |
11747 | int *bufsiz, | |
11748 | const void *ppc_tm_ctar, | |
11749 | int size) | |
cb2366c1 EBM |
11750 | { |
11751 | char *note_name = "LINUX"; | |
11752 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11753 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11754 | } |
11755 | ||
11756 | char * | |
11757 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11758 | char *buf, |
11759 | int *bufsiz, | |
11760 | const void *ppc_tm_cppr, | |
11761 | int size) | |
cb2366c1 EBM |
11762 | { |
11763 | char *note_name = "LINUX"; | |
11764 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11765 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11766 | } |
11767 | ||
11768 | char * | |
11769 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11770 | char *buf, |
11771 | int *bufsiz, | |
11772 | const void *ppc_tm_cdscr, | |
11773 | int size) | |
cb2366c1 EBM |
11774 | { |
11775 | char *note_name = "LINUX"; | |
11776 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11777 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11778 | } |
11779 | ||
0675e188 UW |
11780 | static char * |
11781 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11782 | char *buf, | |
11783 | int *bufsiz, | |
11784 | const void *s390_high_gprs, | |
11785 | int size) | |
11786 | { | |
11787 | char *note_name = "LINUX"; | |
11788 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11789 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11790 | s390_high_gprs, size); |
11791 | } | |
11792 | ||
d7eeb400 MS |
11793 | char * |
11794 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11795 | char *buf, |
11796 | int *bufsiz, | |
11797 | const void *s390_timer, | |
11798 | int size) | |
d7eeb400 MS |
11799 | { |
11800 | char *note_name = "LINUX"; | |
11801 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11802 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11803 | } |
11804 | ||
11805 | char * | |
11806 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11807 | char *buf, |
11808 | int *bufsiz, | |
11809 | const void *s390_todcmp, | |
11810 | int size) | |
d7eeb400 MS |
11811 | { |
11812 | char *note_name = "LINUX"; | |
11813 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11814 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11815 | } |
11816 | ||
11817 | char * | |
11818 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11819 | char *buf, |
11820 | int *bufsiz, | |
11821 | const void *s390_todpreg, | |
11822 | int size) | |
d7eeb400 MS |
11823 | { |
11824 | char *note_name = "LINUX"; | |
11825 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11826 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11827 | } |
11828 | ||
11829 | char * | |
11830 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11831 | char *buf, |
11832 | int *bufsiz, | |
11833 | const void *s390_ctrs, | |
11834 | int size) | |
d7eeb400 MS |
11835 | { |
11836 | char *note_name = "LINUX"; | |
11837 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11838 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11839 | } |
11840 | ||
11841 | char * | |
11842 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11843 | char *buf, |
11844 | int *bufsiz, | |
11845 | const void *s390_prefix, | |
11846 | int size) | |
d7eeb400 MS |
11847 | { |
11848 | char *note_name = "LINUX"; | |
11849 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11850 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11851 | } |
11852 | ||
355b81d9 UW |
11853 | char * |
11854 | elfcore_write_s390_last_break (bfd *abfd, | |
11855 | char *buf, | |
11856 | int *bufsiz, | |
11857 | const void *s390_last_break, | |
11858 | int size) | |
11859 | { | |
11860 | char *note_name = "LINUX"; | |
11861 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11862 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11863 | s390_last_break, size); |
11864 | } | |
11865 | ||
11866 | char * | |
11867 | elfcore_write_s390_system_call (bfd *abfd, | |
11868 | char *buf, | |
11869 | int *bufsiz, | |
11870 | const void *s390_system_call, | |
11871 | int size) | |
11872 | { | |
11873 | char *note_name = "LINUX"; | |
11874 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11875 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11876 | s390_system_call, size); |
11877 | } | |
11878 | ||
abb3f6cc NC |
11879 | char * |
11880 | elfcore_write_s390_tdb (bfd *abfd, | |
11881 | char *buf, | |
11882 | int *bufsiz, | |
11883 | const void *s390_tdb, | |
11884 | int size) | |
11885 | { | |
11886 | char *note_name = "LINUX"; | |
11887 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11888 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11889 | } |
11890 | ||
4ef9f41a AA |
11891 | char * |
11892 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11893 | char *buf, | |
11894 | int *bufsiz, | |
11895 | const void *s390_vxrs_low, | |
11896 | int size) | |
11897 | { | |
11898 | char *note_name = "LINUX"; | |
11899 | return elfcore_write_note (abfd, buf, bufsiz, | |
11900 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11901 | } | |
11902 | ||
11903 | char * | |
11904 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11905 | char *buf, | |
11906 | int *bufsiz, | |
11907 | const void *s390_vxrs_high, | |
11908 | int size) | |
11909 | { | |
11910 | char *note_name = "LINUX"; | |
11911 | return elfcore_write_note (abfd, buf, bufsiz, | |
11912 | note_name, NT_S390_VXRS_HIGH, | |
11913 | s390_vxrs_high, size); | |
11914 | } | |
11915 | ||
88ab90e8 AA |
11916 | char * |
11917 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11918 | char *buf, | |
11919 | int *bufsiz, | |
11920 | const void *s390_gs_cb, | |
11921 | int size) | |
11922 | { | |
11923 | char *note_name = "LINUX"; | |
11924 | return elfcore_write_note (abfd, buf, bufsiz, | |
11925 | note_name, NT_S390_GS_CB, | |
11926 | s390_gs_cb, size); | |
11927 | } | |
11928 | ||
11929 | char * | |
11930 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11931 | char *buf, | |
11932 | int *bufsiz, | |
11933 | const void *s390_gs_bc, | |
11934 | int size) | |
11935 | { | |
11936 | char *note_name = "LINUX"; | |
11937 | return elfcore_write_note (abfd, buf, bufsiz, | |
11938 | note_name, NT_S390_GS_BC, | |
11939 | s390_gs_bc, size); | |
11940 | } | |
11941 | ||
faa9a424 UW |
11942 | char * |
11943 | elfcore_write_arm_vfp (bfd *abfd, | |
11944 | char *buf, | |
11945 | int *bufsiz, | |
11946 | const void *arm_vfp, | |
11947 | int size) | |
11948 | { | |
11949 | char *note_name = "LINUX"; | |
11950 | return elfcore_write_note (abfd, buf, bufsiz, | |
11951 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11952 | } | |
11953 | ||
652451f8 YZ |
11954 | char * |
11955 | elfcore_write_aarch_tls (bfd *abfd, | |
11956 | char *buf, | |
11957 | int *bufsiz, | |
11958 | const void *aarch_tls, | |
11959 | int size) | |
11960 | { | |
11961 | char *note_name = "LINUX"; | |
11962 | return elfcore_write_note (abfd, buf, bufsiz, | |
11963 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11964 | } | |
11965 | ||
11966 | char * | |
11967 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11968 | char *buf, | |
11969 | int *bufsiz, | |
11970 | const void *aarch_hw_break, | |
11971 | int size) | |
11972 | { | |
11973 | char *note_name = "LINUX"; | |
11974 | return elfcore_write_note (abfd, buf, bufsiz, | |
11975 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11976 | } | |
11977 | ||
11978 | char * | |
11979 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11980 | char *buf, | |
11981 | int *bufsiz, | |
11982 | const void *aarch_hw_watch, | |
11983 | int size) | |
11984 | { | |
11985 | char *note_name = "LINUX"; | |
11986 | return elfcore_write_note (abfd, buf, bufsiz, | |
11987 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11988 | } | |
11989 | ||
ad1cc4e4 AH |
11990 | char * |
11991 | elfcore_write_aarch_sve (bfd *abfd, | |
11992 | char *buf, | |
11993 | int *bufsiz, | |
11994 | const void *aarch_sve, | |
11995 | int size) | |
11996 | { | |
11997 | char *note_name = "LINUX"; | |
11998 | return elfcore_write_note (abfd, buf, bufsiz, | |
11999 | note_name, NT_ARM_SVE, aarch_sve, size); | |
12000 | } | |
12001 | ||
e6c3b5bf AH |
12002 | char * |
12003 | elfcore_write_aarch_pauth (bfd *abfd, | |
12004 | char *buf, | |
12005 | int *bufsiz, | |
12006 | const void *aarch_pauth, | |
12007 | int size) | |
12008 | { | |
12009 | char *note_name = "LINUX"; | |
12010 | return elfcore_write_note (abfd, buf, bufsiz, | |
12011 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
12012 | } | |
12013 | ||
f0bbe8ba LM |
12014 | char * |
12015 | elfcore_write_aarch_mte (bfd *abfd, | |
12016 | char *buf, | |
12017 | int *bufsiz, | |
12018 | const void *aarch_mte, | |
12019 | int size) | |
12020 | { | |
12021 | char *note_name = "LINUX"; | |
12022 | return elfcore_write_note (abfd, buf, bufsiz, | |
12023 | note_name, NT_ARM_TAGGED_ADDR_CTRL, | |
12024 | aarch_mte, | |
12025 | size); | |
12026 | } | |
12027 | ||
27456742 AK |
12028 | char * |
12029 | elfcore_write_arc_v2 (bfd *abfd, | |
12030 | char *buf, | |
12031 | int *bufsiz, | |
12032 | const void *arc_v2, | |
12033 | int size) | |
12034 | { | |
12035 | char *note_name = "LINUX"; | |
12036 | return elfcore_write_note (abfd, buf, bufsiz, | |
12037 | note_name, NT_ARC_V2, arc_v2, size); | |
12038 | } | |
12039 | ||
db6092f3 AB |
12040 | /* Write the buffer of csr values in CSRS (length SIZE) into the note |
12041 | buffer BUF and update *BUFSIZ. ABFD is the bfd the note is being | |
12042 | written into. Return a pointer to the new start of the note buffer, to | |
12043 | replace BUF which may no longer be valid. */ | |
12044 | ||
12045 | char * | |
12046 | elfcore_write_riscv_csr (bfd *abfd, | |
12047 | char *buf, | |
12048 | int *bufsiz, | |
12049 | const void *csrs, | |
12050 | int size) | |
12051 | { | |
12052 | const char *note_name = "GDB"; | |
12053 | return elfcore_write_note (abfd, buf, bufsiz, | |
12054 | note_name, NT_RISCV_CSR, csrs, size); | |
12055 | } | |
12056 | ||
b63a5e38 AB |
12057 | /* Write the target description (a string) pointed to by TDESC, length |
12058 | SIZE, into the note buffer BUF, and update *BUFSIZ. ABFD is the bfd the | |
12059 | note is being written into. Return a pointer to the new start of the | |
12060 | note buffer, to replace BUF which may no longer be valid. */ | |
12061 | ||
12062 | char * | |
12063 | elfcore_write_gdb_tdesc (bfd *abfd, | |
12064 | char *buf, | |
12065 | int *bufsiz, | |
12066 | const void *tdesc, | |
12067 | int size) | |
12068 | { | |
12069 | const char *note_name = "GDB"; | |
12070 | return elfcore_write_note (abfd, buf, bufsiz, | |
12071 | note_name, NT_GDB_TDESC, tdesc, size); | |
12072 | } | |
12073 | ||
bb864ac1 CES |
12074 | char * |
12075 | elfcore_write_register_note (bfd *abfd, | |
12076 | char *buf, | |
12077 | int *bufsiz, | |
12078 | const char *section, | |
12079 | const void *data, | |
12080 | int size) | |
12081 | { | |
12082 | if (strcmp (section, ".reg2") == 0) | |
12083 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
12084 | if (strcmp (section, ".reg-xfp") == 0) | |
12085 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
12086 | if (strcmp (section, ".reg-xstate") == 0) |
12087 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12088 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
12089 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
12090 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
12091 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
12092 | if (strcmp (section, ".reg-ppc-tar") == 0) |
12093 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
12094 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
12095 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
12096 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
12097 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
12098 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
12099 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
12100 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
12101 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
12102 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
12103 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
12104 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
12105 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
12106 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
12107 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
12108 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
12109 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
12110 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
12111 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
12112 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
12113 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
12114 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
12115 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
12116 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
12117 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
12118 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
12119 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
12120 | if (strcmp (section, ".reg-s390-timer") == 0) |
12121 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
12122 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
12123 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
12124 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
12125 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
12126 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
12127 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
12128 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
12129 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
12130 | if (strcmp (section, ".reg-s390-last-break") == 0) |
12131 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
12132 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
12133 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
12134 | if (strcmp (section, ".reg-s390-tdb") == 0) |
12135 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
12136 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
12137 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
12138 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
12139 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
12140 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
12141 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
12142 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
12143 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
12144 | if (strcmp (section, ".reg-arm-vfp") == 0) |
12145 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
12146 | if (strcmp (section, ".reg-aarch-tls") == 0) |
12147 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
12148 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
12149 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
12150 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
12151 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
12152 | if (strcmp (section, ".reg-aarch-sve") == 0) |
12153 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
12154 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
12155 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
f0bbe8ba LM |
12156 | if (strcmp (section, ".reg-aarch-mte") == 0) |
12157 | return elfcore_write_aarch_mte (abfd, buf, bufsiz, data, size); | |
27456742 AK |
12158 | if (strcmp (section, ".reg-arc-v2") == 0) |
12159 | return elfcore_write_arc_v2 (abfd, buf, bufsiz, data, size); | |
b63a5e38 AB |
12160 | if (strcmp (section, ".gdb-tdesc") == 0) |
12161 | return elfcore_write_gdb_tdesc (abfd, buf, bufsiz, data, size); | |
db6092f3 AB |
12162 | if (strcmp (section, ".reg-riscv-csr") == 0) |
12163 | return elfcore_write_riscv_csr (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
12164 | return NULL; |
12165 | } | |
12166 | ||
4cb1265b MS |
12167 | char * |
12168 | elfcore_write_file_note (bfd *obfd, char *note_data, int *note_size, | |
12169 | const void *buf, int bufsiz) | |
12170 | { | |
12171 | return elfcore_write_note (obfd, note_data, note_size, | |
12172 | "CORE", NT_FILE, buf, bufsiz); | |
12173 | } | |
12174 | ||
0a1b45a2 | 12175 | static bool |
276da9b3 L |
12176 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
12177 | size_t align) | |
252b5132 | 12178 | { |
c044fabd | 12179 | char *p; |
252b5132 | 12180 | |
276da9b3 L |
12181 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
12182 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
12183 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
12184 | align is less than 4, we use 4 byte alignment. */ | |
12185 | if (align < 4) | |
12186 | align = 4; | |
ef135d43 | 12187 | if (align != 4 && align != 8) |
0a1b45a2 | 12188 | return false; |
276da9b3 | 12189 | |
252b5132 RH |
12190 | p = buf; |
12191 | while (p < buf + size) | |
12192 | { | |
c044fabd | 12193 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
12194 | Elf_Internal_Note in; |
12195 | ||
baea7ef1 | 12196 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
0a1b45a2 | 12197 | return false; |
baea7ef1 | 12198 | |
dc810e39 | 12199 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 12200 | |
dc810e39 | 12201 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 12202 | in.namedata = xnp->name; |
baea7ef1 | 12203 | if (in.namesz > buf - in.namedata + size) |
0a1b45a2 | 12204 | return false; |
252b5132 | 12205 | |
dc810e39 | 12206 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 12207 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 12208 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
12209 | if (in.descsz != 0 |
12210 | && (in.descdata >= buf + size | |
12211 | || in.descsz > buf - in.descdata + size)) | |
0a1b45a2 | 12212 | return false; |
252b5132 | 12213 | |
718175fa | 12214 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 12215 | { |
718175fa | 12216 | default: |
0a1b45a2 | 12217 | return true; |
718175fa JK |
12218 | |
12219 | case bfd_core: | |
f64e188b | 12220 | { |
8acbedd6 | 12221 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 12222 | struct |
718175fa | 12223 | { |
f64e188b | 12224 | const char * string; |
8acbedd6 | 12225 | size_t len; |
0a1b45a2 | 12226 | bool (*func) (bfd *, Elf_Internal_Note *); |
718175fa | 12227 | } |
f64e188b | 12228 | grokers[] = |
b15fa79e | 12229 | { |
8acbedd6 | 12230 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 12231 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
12232 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
12233 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
12234 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
864619bb KS |
12235 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
12236 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note) | |
f64e188b | 12237 | }; |
8acbedd6 | 12238 | #undef GROKER_ELEMENT |
f64e188b NC |
12239 | int i; |
12240 | ||
12241 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
12242 | { |
12243 | if (in.namesz >= grokers[i].len | |
12244 | && strncmp (in.namedata, grokers[i].string, | |
12245 | grokers[i].len) == 0) | |
12246 | { | |
12247 | if (! grokers[i].func (abfd, & in)) | |
0a1b45a2 | 12248 | return false; |
8acbedd6 KS |
12249 | break; |
12250 | } | |
12251 | } | |
f64e188b NC |
12252 | break; |
12253 | } | |
718175fa JK |
12254 | |
12255 | case bfd_object: | |
12256 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
12257 | { | |
12258 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
0a1b45a2 | 12259 | return false; |
718175fa | 12260 | } |
e21e5835 NC |
12261 | else if (in.namesz == sizeof "stapsdt" |
12262 | && strcmp (in.namedata, "stapsdt") == 0) | |
12263 | { | |
12264 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
0a1b45a2 | 12265 | return false; |
e21e5835 | 12266 | } |
718175fa | 12267 | break; |
08a40648 | 12268 | } |
252b5132 | 12269 | |
276da9b3 | 12270 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
12271 | } |
12272 | ||
0a1b45a2 | 12273 | return true; |
718175fa JK |
12274 | } |
12275 | ||
0a1b45a2 | 12276 | bool |
276da9b3 L |
12277 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
12278 | size_t align) | |
718175fa JK |
12279 | { |
12280 | char *buf; | |
12281 | ||
957e1fc1 | 12282 | if (size == 0 || (size + 1) == 0) |
0a1b45a2 | 12283 | return true; |
718175fa JK |
12284 | |
12285 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
0a1b45a2 | 12286 | return false; |
718175fa | 12287 | |
2bb3687b | 12288 | buf = (char *) _bfd_malloc_and_read (abfd, size + 1, size); |
718175fa | 12289 | if (buf == NULL) |
0a1b45a2 | 12290 | return false; |
718175fa | 12291 | |
f64e188b NC |
12292 | /* PR 17512: file: ec08f814 |
12293 | 0-termintate the buffer so that string searches will not overflow. */ | |
12294 | buf[size] = 0; | |
12295 | ||
2bb3687b | 12296 | if (!elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
12297 | { |
12298 | free (buf); | |
0a1b45a2 | 12299 | return false; |
718175fa JK |
12300 | } |
12301 | ||
252b5132 | 12302 | free (buf); |
0a1b45a2 | 12303 | return true; |
252b5132 | 12304 | } |
98d8431c JB |
12305 | \f |
12306 | /* Providing external access to the ELF program header table. */ | |
12307 | ||
12308 | /* Return an upper bound on the number of bytes required to store a | |
12309 | copy of ABFD's program header table entries. Return -1 if an error | |
12310 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12311 | |
98d8431c | 12312 | long |
217aa764 | 12313 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
12314 | { |
12315 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12316 | { | |
12317 | bfd_set_error (bfd_error_wrong_format); | |
12318 | return -1; | |
12319 | } | |
12320 | ||
936e320b | 12321 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
12322 | } |
12323 | ||
98d8431c JB |
12324 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
12325 | will be stored as an array of Elf_Internal_Phdr structures, as | |
12326 | defined in include/elf/internal.h. To find out how large the | |
12327 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
12328 | ||
12329 | Return the number of program header table entries read, or -1 if an | |
12330 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 12331 | |
98d8431c | 12332 | int |
217aa764 | 12333 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
12334 | { |
12335 | int num_phdrs; | |
12336 | ||
12337 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
12338 | { | |
12339 | bfd_set_error (bfd_error_wrong_format); | |
12340 | return -1; | |
12341 | } | |
12342 | ||
12343 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
12344 | if (num_phdrs != 0) |
12345 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
12346 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
12347 | |
12348 | return num_phdrs; | |
12349 | } | |
ae4221d7 | 12350 | |
db6751f2 | 12351 | enum elf_reloc_type_class |
7e612e98 AM |
12352 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
12353 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
12354 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
12355 | { |
12356 | return reloc_class_normal; | |
12357 | } | |
f8df10f4 | 12358 | |
47d9a591 | 12359 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
12360 | relocation against a local symbol. */ |
12361 | ||
12362 | bfd_vma | |
217aa764 AM |
12363 | _bfd_elf_rela_local_sym (bfd *abfd, |
12364 | Elf_Internal_Sym *sym, | |
8517fae7 | 12365 | asection **psec, |
217aa764 | 12366 | Elf_Internal_Rela *rel) |
f8df10f4 | 12367 | { |
8517fae7 | 12368 | asection *sec = *psec; |
f8df10f4 JJ |
12369 | bfd_vma relocation; |
12370 | ||
6835821b AM |
12371 | relocation = (sec->output_section->vma |
12372 | + sec->output_offset | |
12373 | + sym->st_value); | |
f8df10f4 | 12374 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 12375 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 12376 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 12377 | { |
f8df10f4 | 12378 | rel->r_addend = |
8517fae7 | 12379 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 12380 | elf_section_data (sec)->sec_info, |
753731ee AM |
12381 | sym->st_value + rel->r_addend); |
12382 | if (sec != *psec) | |
12383 | { | |
12384 | /* If we have changed the section, and our original section is | |
12385 | marked with SEC_EXCLUDE, it means that the original | |
12386 | SEC_MERGE section has been completely subsumed in some | |
12387 | other SEC_MERGE section. In this case, we need to leave | |
12388 | some info around for --emit-relocs. */ | |
12389 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12390 | sec->kept_section = *psec; | |
12391 | sec = *psec; | |
12392 | } | |
8517fae7 AM |
12393 | rel->r_addend -= relocation; |
12394 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12395 | } |
12396 | return relocation; | |
12397 | } | |
c629eae0 JJ |
12398 | |
12399 | bfd_vma | |
217aa764 AM |
12400 | _bfd_elf_rel_local_sym (bfd *abfd, |
12401 | Elf_Internal_Sym *sym, | |
12402 | asection **psec, | |
12403 | bfd_vma addend) | |
47d9a591 | 12404 | { |
c629eae0 JJ |
12405 | asection *sec = *psec; |
12406 | ||
6835821b | 12407 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12408 | return sym->st_value + addend; |
12409 | ||
12410 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12411 | elf_section_data (sec)->sec_info, |
753731ee | 12412 | sym->st_value + addend); |
c629eae0 JJ |
12413 | } |
12414 | ||
37b01f6a DG |
12415 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12416 | the new offset within the section, based upon changes made to the | |
12417 | section. Returns -1 if the offset is now invalid. | |
12418 | The offset (in abnd out) is in target sized bytes, however big a | |
12419 | byte may be. */ | |
12420 | ||
c629eae0 | 12421 | bfd_vma |
217aa764 | 12422 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12423 | struct bfd_link_info *info, |
217aa764 AM |
12424 | asection *sec, |
12425 | bfd_vma offset) | |
c629eae0 | 12426 | { |
68bfbfcc | 12427 | switch (sec->sec_info_type) |
65765700 | 12428 | { |
dbaa2011 | 12429 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12430 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12431 | offset); | |
dbaa2011 | 12432 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12433 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12434 | |
65765700 | 12435 | default: |
310fd250 L |
12436 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12437 | { | |
37b01f6a | 12438 | /* Reverse the offset. */ |
310fd250 L |
12439 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12440 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12441 | |
12442 | /* address_size and sec->size are in octets. Convert | |
12443 | to bytes before subtracting the original offset. */ | |
61826503 | 12444 | offset = ((sec->size - address_size) |
bb294208 | 12445 | / bfd_octets_per_byte (abfd, sec) - offset); |
310fd250 | 12446 | } |
65765700 JJ |
12447 | return offset; |
12448 | } | |
c629eae0 | 12449 | } |
3333a7c3 RM |
12450 | \f |
12451 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12452 | reconstruct an ELF file by reading the segments out of remote memory | |
12453 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12454 | points to. If not null, *LOADBASEP is filled in with the difference | |
12455 | between the VMAs from which the segments were read, and the VMAs the | |
12456 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12457 | ||
12458 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12459 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12460 | should return zero on success or an `errno' code on failure. TEMPL must | |
12461 | be a BFD for an ELF target with the word size and byte order found in | |
12462 | the remote memory. */ | |
12463 | ||
12464 | bfd * | |
217aa764 AM |
12465 | bfd_elf_bfd_from_remote_memory |
12466 | (bfd *templ, | |
12467 | bfd_vma ehdr_vma, | |
f0a5d95a | 12468 | bfd_size_type size, |
217aa764 | 12469 | bfd_vma *loadbasep, |
fe78531d | 12470 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12471 | { |
12472 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12473 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12474 | } |
4c45e5c9 JJ |
12475 | \f |
12476 | long | |
c9727e01 AM |
12477 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12478 | long symcount ATTRIBUTE_UNUSED, | |
12479 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12480 | long dynsymcount, |
c9727e01 AM |
12481 | asymbol **dynsyms, |
12482 | asymbol **ret) | |
4c45e5c9 JJ |
12483 | { |
12484 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12485 | asection *relplt; | |
12486 | asymbol *s; | |
12487 | const char *relplt_name; | |
0a1b45a2 | 12488 | bool (*slurp_relocs) (bfd *, asection *, asymbol **, bool); |
4c45e5c9 JJ |
12489 | arelent *p; |
12490 | long count, i, n; | |
12491 | size_t size; | |
12492 | Elf_Internal_Shdr *hdr; | |
12493 | char *names; | |
12494 | asection *plt; | |
12495 | ||
8615f3f2 AM |
12496 | *ret = NULL; |
12497 | ||
90e3cdf2 JJ |
12498 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12499 | return 0; | |
12500 | ||
8615f3f2 AM |
12501 | if (dynsymcount <= 0) |
12502 | return 0; | |
12503 | ||
4c45e5c9 JJ |
12504 | if (!bed->plt_sym_val) |
12505 | return 0; | |
12506 | ||
12507 | relplt_name = bed->relplt_name; | |
12508 | if (relplt_name == NULL) | |
d35fd659 | 12509 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12510 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12511 | if (relplt == NULL) | |
12512 | return 0; | |
12513 | ||
12514 | hdr = &elf_section_data (relplt)->this_hdr; | |
12515 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12516 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12517 | return 0; | |
12518 | ||
12519 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12520 | if (plt == NULL) | |
12521 | return 0; | |
12522 | ||
12523 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
0a1b45a2 | 12524 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, true)) |
4c45e5c9 JJ |
12525 | return -1; |
12526 | ||
eea6121a | 12527 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12528 | size = count * sizeof (asymbol); |
12529 | p = relplt->relocation; | |
cb53bf42 | 12530 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12531 | { |
12532 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12533 | if (p->addend != 0) | |
12534 | { | |
12535 | #ifdef BFD64 | |
12536 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12537 | #else | |
12538 | size += sizeof ("+0x") - 1 + 8; | |
12539 | #endif | |
12540 | } | |
12541 | } | |
4c45e5c9 | 12542 | |
a50b1753 | 12543 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12544 | if (s == NULL) |
12545 | return -1; | |
12546 | ||
12547 | names = (char *) (s + count); | |
12548 | p = relplt->relocation; | |
12549 | n = 0; | |
cb53bf42 | 12550 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12551 | { |
12552 | size_t len; | |
12553 | bfd_vma addr; | |
12554 | ||
12555 | addr = bed->plt_sym_val (i, plt, p); | |
12556 | if (addr == (bfd_vma) -1) | |
12557 | continue; | |
12558 | ||
12559 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12560 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12561 | we are defining a symbol, ensure one of them is set. */ | |
12562 | if ((s->flags & BSF_LOCAL) == 0) | |
12563 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12564 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12565 | s->section = plt; |
12566 | s->value = addr - plt->vma; | |
12567 | s->name = names; | |
8f39ba8e | 12568 | s->udata.p = NULL; |
4c45e5c9 JJ |
12569 | len = strlen ((*p->sym_ptr_ptr)->name); |
12570 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12571 | names += len; | |
041de40d AM |
12572 | if (p->addend != 0) |
12573 | { | |
1d770845 | 12574 | char buf[30], *a; |
d324f6d6 | 12575 | |
041de40d AM |
12576 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12577 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12578 | bfd_sprintf_vma (abfd, buf, p->addend); |
12579 | for (a = buf; *a == '0'; ++a) | |
12580 | ; | |
12581 | len = strlen (a); | |
12582 | memcpy (names, a, len); | |
12583 | names += len; | |
041de40d | 12584 | } |
4c45e5c9 JJ |
12585 | memcpy (names, "@plt", sizeof ("@plt")); |
12586 | names += sizeof ("@plt"); | |
8f39ba8e | 12587 | ++s, ++n; |
4c45e5c9 JJ |
12588 | } |
12589 | ||
12590 | return n; | |
12591 | } | |
3d7f7666 | 12592 | |
821e6ff6 AM |
12593 | /* It is only used by x86-64 so far. |
12594 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12595 | but current usage would allow all of _bfd_std_section to be zero. */ |
12596 | static const asymbol lcomm_sym | |
12597 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12598 | asection _bfd_elf_large_com_section |
7eacd66b | 12599 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12600 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12601 | |
0a1b45a2 | 12602 | bool |
cc364be6 | 12603 | _bfd_elf_final_write_processing (bfd *abfd) |
06f44071 AM |
12604 | { |
12605 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12606 | |
12607 | i_ehdrp = elf_elfheader (abfd); | |
12608 | ||
06f44071 AM |
12609 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12610 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12611 | |
df3a023b | 12612 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
99fabbc9 JL |
12613 | SHF_GNU_MBIND or SHF_GNU_RETAIN sections or symbols of STT_GNU_IFUNC type |
12614 | or STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12615 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12616 | { | |
12617 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12618 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12619 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12620 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12621 | { | |
12622 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
99fabbc9 JL |
12623 | _bfd_error_handler (_("GNU_MBIND section is supported only by GNU " |
12624 | "and FreeBSD targets")); | |
cc364be6 | 12625 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) |
99fabbc9 JL |
12626 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is supported " |
12627 | "only by GNU and FreeBSD targets")); | |
cc364be6 | 12628 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) |
99fabbc9 JL |
12629 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is supported " |
12630 | "only by GNU and FreeBSD targets")); | |
12631 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_retain) | |
12632 | _bfd_error_handler (_("GNU_RETAIN section is supported " | |
12633 | "only by GNU and FreeBSD targets")); | |
9aea1e31 | 12634 | bfd_set_error (bfd_error_sorry); |
0a1b45a2 | 12635 | return false; |
cc364be6 AM |
12636 | } |
12637 | } | |
0a1b45a2 | 12638 | return true; |
d1036acb | 12639 | } |
fcb93ecf PB |
12640 | |
12641 | ||
12642 | /* Return TRUE for ELF symbol types that represent functions. | |
12643 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12644 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf | 12645 | |
0a1b45a2 | 12646 | bool |
fcb93ecf PB |
12647 | _bfd_elf_is_function_type (unsigned int type) |
12648 | { | |
d8045f23 NC |
12649 | return (type == STT_FUNC |
12650 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12651 | } |
9f296da3 | 12652 | |
aef36ac1 AM |
12653 | /* If the ELF symbol SYM might be a function in SEC, return the |
12654 | function size and set *CODE_OFF to the function's entry point, | |
12655 | otherwise return zero. */ | |
9f296da3 | 12656 | |
aef36ac1 AM |
12657 | bfd_size_type |
12658 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12659 | bfd_vma *code_off) | |
9f296da3 | 12660 | { |
aef36ac1 | 12661 | bfd_size_type size; |
24aebc79 | 12662 | elf_symbol_type * elf_sym = (elf_symbol_type *) sym; |
aef36ac1 | 12663 | |
ff9e0f5b | 12664 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12665 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12666 | || sym->section != sec) | |
12667 | return 0; | |
ff9e0f5b | 12668 | |
24aebc79 NC |
12669 | size = (sym->flags & BSF_SYNTHETIC) ? 0 : elf_sym->internal_elf_sym.st_size; |
12670 | ||
12671 | /* In theory we should check that the symbol's type satisfies | |
12672 | _bfd_elf_is_function_type(), but there are some function-like | |
12673 | symbols which would fail this test. (eg _start). Instead | |
12674 | we check for hidden, local, notype symbols with zero size. | |
12675 | This type of symbol is generated by the annobin plugin for gcc | |
12676 | and clang, and should not be considered to be a function symbol. */ | |
12677 | if (size == 0 | |
12678 | && ((sym->flags & (BSF_SYNTHETIC | BSF_LOCAL)) == BSF_LOCAL) | |
12679 | && ELF_ST_TYPE (elf_sym->internal_elf_sym.st_info) == STT_NOTYPE | |
12680 | && ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other) == STV_HIDDEN) | |
12681 | return 0; | |
12682 | ||
ff9e0f5b | 12683 | *code_off = sym->value; |
24aebc79 NC |
12684 | /* Do not return 0 for the function's size. */ |
12685 | return size ? size : 1; | |
9f296da3 | 12686 | } |
a8e14f4c NC |
12687 | |
12688 | /* Set to non-zero to enable some debug messages. */ | |
12689 | #define DEBUG_SECONDARY_RELOCS 0 | |
12690 | ||
12691 | /* An internal-to-the-bfd-library only section type | |
12692 | used to indicate a cached secondary reloc section. */ | |
12693 | #define SHT_SECONDARY_RELOC (SHT_LOOS + SHT_RELA) | |
12694 | ||
12695 | /* Create a BFD section to hold a secondary reloc section. */ | |
12696 | ||
0a1b45a2 | 12697 | bool |
a8e14f4c NC |
12698 | _bfd_elf_init_secondary_reloc_section (bfd * abfd, |
12699 | Elf_Internal_Shdr *hdr, | |
12700 | const char * name, | |
12701 | unsigned int shindex) | |
12702 | { | |
12703 | /* We only support RELA secondary relocs. */ | |
12704 | if (hdr->sh_type != SHT_RELA) | |
0a1b45a2 | 12705 | return false; |
a8e14f4c NC |
12706 | |
12707 | #if DEBUG_SECONDARY_RELOCS | |
12708 | fprintf (stderr, "secondary reloc section %s encountered\n", name); | |
12709 | #endif | |
12710 | hdr->sh_type = SHT_SECONDARY_RELOC; | |
12711 | return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
12712 | } | |
12713 | ||
12714 | /* Read in any secondary relocs associated with SEC. */ | |
12715 | ||
0a1b45a2 | 12716 | bool |
f60742b2 NC |
12717 | _bfd_elf_slurp_secondary_reloc_section (bfd * abfd, |
12718 | asection * sec, | |
12719 | asymbol ** symbols, | |
0a1b45a2 | 12720 | bool dynamic) |
a8e14f4c NC |
12721 | { |
12722 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
12723 | asection * relsec; | |
0a1b45a2 | 12724 | bool result = true; |
a8e14f4c NC |
12725 | bfd_vma (*r_sym) (bfd_vma); |
12726 | ||
12727 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
12728 | if (bfd_arch_bits_per_address (abfd) != 32) | |
12729 | r_sym = elf64_r_sym; | |
12730 | else | |
12731 | #endif | |
12732 | r_sym = elf32_r_sym; | |
12733 | ||
956ea65c MM |
12734 | if (!elf_section_data (sec)->has_secondary_relocs) |
12735 | return true; | |
12736 | ||
a8e14f4c NC |
12737 | /* Discover if there are any secondary reloc sections |
12738 | associated with SEC. */ | |
12739 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
12740 | { | |
12741 | Elf_Internal_Shdr * hdr = & elf_section_data (relsec)->this_hdr; | |
12742 | ||
12743 | if (hdr->sh_type == SHT_SECONDARY_RELOC | |
8642dafa AM |
12744 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx |
12745 | && (hdr->sh_entsize == ebd->s->sizeof_rel | |
12746 | || hdr->sh_entsize == ebd->s->sizeof_rela)) | |
a8e14f4c NC |
12747 | { |
12748 | bfd_byte * native_relocs; | |
12749 | bfd_byte * native_reloc; | |
12750 | arelent * internal_relocs; | |
12751 | arelent * internal_reloc; | |
12752 | unsigned int i; | |
12753 | unsigned int entsize; | |
12754 | unsigned int symcount; | |
12755 | unsigned int reloc_count; | |
12756 | size_t amt; | |
12757 | ||
12758 | if (ebd->elf_info_to_howto == NULL) | |
0a1b45a2 | 12759 | return false; |
a8e14f4c NC |
12760 | |
12761 | #if DEBUG_SECONDARY_RELOCS | |
12762 | fprintf (stderr, "read secondary relocs for %s from %s\n", | |
12763 | sec->name, relsec->name); | |
12764 | #endif | |
12765 | entsize = hdr->sh_entsize; | |
12766 | ||
12767 | native_relocs = bfd_malloc (hdr->sh_size); | |
12768 | if (native_relocs == NULL) | |
12769 | { | |
0a1b45a2 | 12770 | result = false; |
a8e14f4c NC |
12771 | continue; |
12772 | } | |
12773 | ||
12774 | reloc_count = NUM_SHDR_ENTRIES (hdr); | |
12775 | if (_bfd_mul_overflow (reloc_count, sizeof (arelent), & amt)) | |
12776 | { | |
ecbbbdba | 12777 | free (native_relocs); |
a8e14f4c | 12778 | bfd_set_error (bfd_error_file_too_big); |
0a1b45a2 | 12779 | result = false; |
a8e14f4c NC |
12780 | continue; |
12781 | } | |
12782 | ||
12783 | internal_relocs = (arelent *) bfd_alloc (abfd, amt); | |
12784 | if (internal_relocs == NULL) | |
12785 | { | |
12786 | free (native_relocs); | |
0a1b45a2 | 12787 | result = false; |
a8e14f4c NC |
12788 | continue; |
12789 | } | |
12790 | ||
12791 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 | |
12792 | || (bfd_bread (native_relocs, hdr->sh_size, abfd) | |
12793 | != hdr->sh_size)) | |
12794 | { | |
12795 | free (native_relocs); | |
ecbbbdba NC |
12796 | /* The internal_relocs will be freed when |
12797 | the memory for the bfd is released. */ | |
0a1b45a2 | 12798 | result = false; |
a8e14f4c NC |
12799 | continue; |
12800 | } | |
12801 | ||
f60742b2 NC |
12802 | if (dynamic) |
12803 | symcount = bfd_get_dynamic_symcount (abfd); | |
12804 | else | |
12805 | symcount = bfd_get_symcount (abfd); | |
a8e14f4c NC |
12806 | |
12807 | for (i = 0, internal_reloc = internal_relocs, | |
12808 | native_reloc = native_relocs; | |
12809 | i < reloc_count; | |
12810 | i++, internal_reloc++, native_reloc += entsize) | |
12811 | { | |
0a1b45a2 | 12812 | bool res; |
a8e14f4c NC |
12813 | Elf_Internal_Rela rela; |
12814 | ||
8ee54925 NC |
12815 | if (entsize == ebd->s->sizeof_rel) |
12816 | ebd->s->swap_reloc_in (abfd, native_reloc, & rela); | |
12817 | else /* entsize == ebd->s->sizeof_rela */ | |
12818 | ebd->s->swap_reloca_in (abfd, native_reloc, & rela); | |
a8e14f4c NC |
12819 | |
12820 | /* The address of an ELF reloc is section relative for an object | |
12821 | file, and absolute for an executable file or shared library. | |
12822 | The address of a normal BFD reloc is always section relative, | |
12823 | and the address of a dynamic reloc is absolute.. */ | |
12824 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
12825 | internal_reloc->address = rela.r_offset; | |
12826 | else | |
12827 | internal_reloc->address = rela.r_offset - sec->vma; | |
12828 | ||
12829 | if (r_sym (rela.r_info) == STN_UNDEF) | |
12830 | { | |
12831 | /* FIXME: This and the error case below mean that we | |
12832 | have a symbol on relocs that is not elf_symbol_type. */ | |
12833 | internal_reloc->sym_ptr_ptr = | |
12834 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
12835 | } | |
12836 | else if (r_sym (rela.r_info) > symcount) | |
12837 | { | |
12838 | _bfd_error_handler | |
12839 | /* xgettext:c-format */ | |
12840 | (_("%pB(%pA): relocation %d has invalid symbol index %ld"), | |
12841 | abfd, sec, i, (long) r_sym (rela.r_info)); | |
12842 | bfd_set_error (bfd_error_bad_value); | |
12843 | internal_reloc->sym_ptr_ptr = | |
12844 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
0a1b45a2 | 12845 | result = false; |
a8e14f4c NC |
12846 | } |
12847 | else | |
12848 | { | |
12849 | asymbol **ps; | |
12850 | ||
12851 | ps = symbols + r_sym (rela.r_info) - 1; | |
a8e14f4c NC |
12852 | internal_reloc->sym_ptr_ptr = ps; |
12853 | /* Make sure that this symbol is not removed by strip. */ | |
12854 | (*ps)->flags |= BSF_KEEP; | |
12855 | } | |
12856 | ||
12857 | internal_reloc->addend = rela.r_addend; | |
12858 | ||
12859 | res = ebd->elf_info_to_howto (abfd, internal_reloc, & rela); | |
12860 | if (! res || internal_reloc->howto == NULL) | |
12861 | { | |
12862 | #if DEBUG_SECONDARY_RELOCS | |
12863 | fprintf (stderr, "there is no howto associated with reloc %lx\n", | |
12864 | rela.r_info); | |
12865 | #endif | |
0a1b45a2 | 12866 | result = false; |
a8e14f4c NC |
12867 | } |
12868 | } | |
12869 | ||
12870 | free (native_relocs); | |
12871 | /* Store the internal relocs. */ | |
12872 | elf_section_data (relsec)->sec_info = internal_relocs; | |
12873 | } | |
12874 | } | |
12875 | ||
12876 | return result; | |
12877 | } | |
12878 | ||
12879 | /* Set the ELF section header fields of an output secondary reloc section. */ | |
12880 | ||
0a1b45a2 | 12881 | bool |
a8e14f4c NC |
12882 | _bfd_elf_copy_special_section_fields (const bfd * ibfd ATTRIBUTE_UNUSED, |
12883 | bfd * obfd ATTRIBUTE_UNUSED, | |
12884 | const Elf_Internal_Shdr * isection, | |
12885 | Elf_Internal_Shdr * osection) | |
12886 | { | |
12887 | asection * isec; | |
12888 | asection * osec; | |
44466e45 | 12889 | struct bfd_elf_section_data * esd; |
a8e14f4c NC |
12890 | |
12891 | if (isection == NULL) | |
0a1b45a2 | 12892 | return false; |
a8e14f4c NC |
12893 | |
12894 | if (isection->sh_type != SHT_SECONDARY_RELOC) | |
0a1b45a2 | 12895 | return true; |
a8e14f4c NC |
12896 | |
12897 | isec = isection->bfd_section; | |
12898 | if (isec == NULL) | |
0a1b45a2 | 12899 | return false; |
a8e14f4c NC |
12900 | |
12901 | osec = osection->bfd_section; | |
12902 | if (osec == NULL) | |
0a1b45a2 | 12903 | return false; |
a8e14f4c | 12904 | |
44466e45 NC |
12905 | esd = elf_section_data (osec); |
12906 | BFD_ASSERT (esd->sec_info == NULL); | |
12907 | esd->sec_info = elf_section_data (isec)->sec_info; | |
a8e14f4c NC |
12908 | osection->sh_type = SHT_RELA; |
12909 | osection->sh_link = elf_onesymtab (obfd); | |
12910 | if (osection->sh_link == 0) | |
12911 | { | |
12912 | /* There is no symbol table - we are hosed... */ | |
12913 | _bfd_error_handler | |
12914 | /* xgettext:c-format */ | |
12915 | (_("%pB(%pA): link section cannot be set because the output file does not have a symbol table"), | |
12916 | obfd, osec); | |
12917 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 12918 | return false; |
a8e14f4c NC |
12919 | } |
12920 | ||
12921 | /* Find the output section that corresponds to the isection's sh_info link. */ | |
327ef784 NC |
12922 | if (isection->sh_info == 0 |
12923 | || isection->sh_info >= elf_numsections (ibfd)) | |
12924 | { | |
12925 | _bfd_error_handler | |
12926 | /* xgettext:c-format */ | |
12927 | (_("%pB(%pA): info section index is invalid"), | |
12928 | obfd, osec); | |
12929 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 12930 | return false; |
327ef784 NC |
12931 | } |
12932 | ||
a8e14f4c NC |
12933 | isection = elf_elfsections (ibfd)[isection->sh_info]; |
12934 | ||
327ef784 NC |
12935 | if (isection == NULL |
12936 | || isection->bfd_section == NULL | |
12937 | || isection->bfd_section->output_section == NULL) | |
12938 | { | |
12939 | _bfd_error_handler | |
12940 | /* xgettext:c-format */ | |
12941 | (_("%pB(%pA): info section index cannot be set because the section is not in the output"), | |
12942 | obfd, osec); | |
12943 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 12944 | return false; |
327ef784 NC |
12945 | } |
12946 | ||
44466e45 NC |
12947 | esd = elf_section_data (isection->bfd_section->output_section); |
12948 | BFD_ASSERT (esd != NULL); | |
12949 | osection->sh_info = esd->this_idx; | |
0a1b45a2 | 12950 | esd->has_secondary_relocs = true; |
a8e14f4c NC |
12951 | #if DEBUG_SECONDARY_RELOCS |
12952 | fprintf (stderr, "update header of %s, sh_link = %u, sh_info = %u\n", | |
12953 | osec->name, osection->sh_link, osection->sh_info); | |
44466e45 NC |
12954 | fprintf (stderr, "mark section %s as having secondary relocs\n", |
12955 | bfd_section_name (isection->bfd_section->output_section)); | |
a8e14f4c NC |
12956 | #endif |
12957 | ||
0a1b45a2 | 12958 | return true; |
a8e14f4c NC |
12959 | } |
12960 | ||
44466e45 NC |
12961 | /* Write out a secondary reloc section. |
12962 | ||
12963 | FIXME: Currently this function can result in a serious performance penalty | |
12964 | for files with secondary relocs and lots of sections. The proper way to | |
12965 | fix this is for _bfd_elf_copy_special_section_fields() to chain secondary | |
12966 | relocs together and then to have this function just walk that chain. */ | |
a8e14f4c | 12967 | |
0a1b45a2 | 12968 | bool |
a8e14f4c NC |
12969 | _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec) |
12970 | { | |
12971 | const struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
12972 | bfd_vma addr_offset; | |
12973 | asection * relsec; | |
12974 | bfd_vma (*r_info) (bfd_vma, bfd_vma); | |
0a1b45a2 | 12975 | bool result = true; |
ac4bf06c NC |
12976 | |
12977 | if (sec == NULL) | |
0a1b45a2 | 12978 | return false; |
a8e14f4c NC |
12979 | |
12980 | #if BFD_DEFAULT_TARGET_SIZE > 32 | |
12981 | if (bfd_arch_bits_per_address (abfd) != 32) | |
12982 | r_info = elf64_r_info; | |
12983 | else | |
12984 | #endif | |
12985 | r_info = elf32_r_info; | |
12986 | ||
a8e14f4c NC |
12987 | /* The address of an ELF reloc is section relative for an object |
12988 | file, and absolute for an executable file or shared library. | |
12989 | The address of a BFD reloc is always section relative. */ | |
12990 | addr_offset = 0; | |
12991 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
12992 | addr_offset = sec->vma; | |
12993 | ||
12994 | /* Discover if there are any secondary reloc sections | |
12995 | associated with SEC. */ | |
12996 | for (relsec = abfd->sections; relsec != NULL; relsec = relsec->next) | |
12997 | { | |
12998 | const struct bfd_elf_section_data * const esd = elf_section_data (relsec); | |
12999 | Elf_Internal_Shdr * const hdr = (Elf_Internal_Shdr *) & esd->this_hdr; | |
13000 | ||
13001 | if (hdr->sh_type == SHT_RELA | |
13002 | && hdr->sh_info == (unsigned) elf_section_data (sec)->this_idx) | |
13003 | { | |
13004 | asymbol * last_sym; | |
13005 | int last_sym_idx; | |
13006 | unsigned int reloc_count; | |
13007 | unsigned int idx; | |
8ee54925 | 13008 | unsigned int entsize; |
a8e14f4c NC |
13009 | arelent * src_irel; |
13010 | bfd_byte * dst_rela; | |
13011 | ||
ac4bf06c NC |
13012 | if (hdr->contents != NULL) |
13013 | { | |
13014 | _bfd_error_handler | |
13015 | /* xgettext:c-format */ | |
13016 | (_("%pB(%pA): error: secondary reloc section processed twice"), | |
13017 | abfd, relsec); | |
13018 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13019 | result = false; |
ac4bf06c NC |
13020 | continue; |
13021 | } | |
a8e14f4c | 13022 | |
8ee54925 NC |
13023 | entsize = hdr->sh_entsize; |
13024 | if (entsize == 0) | |
ac267c75 NC |
13025 | { |
13026 | _bfd_error_handler | |
13027 | /* xgettext:c-format */ | |
13028 | (_("%pB(%pA): error: secondary reloc section has zero sized entries"), | |
13029 | abfd, relsec); | |
13030 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13031 | result = false; |
ac267c75 NC |
13032 | continue; |
13033 | } | |
8ee54925 NC |
13034 | else if (entsize != ebd->s->sizeof_rel |
13035 | && entsize != ebd->s->sizeof_rela) | |
13036 | { | |
13037 | _bfd_error_handler | |
13038 | /* xgettext:c-format */ | |
13039 | (_("%pB(%pA): error: secondary reloc section has non-standard sized entries"), | |
13040 | abfd, relsec); | |
13041 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13042 | result = false; |
8ee54925 NC |
13043 | continue; |
13044 | } | |
ac267c75 | 13045 | |
8ee54925 | 13046 | reloc_count = hdr->sh_size / entsize; |
ac4bf06c NC |
13047 | if (reloc_count <= 0) |
13048 | { | |
13049 | _bfd_error_handler | |
13050 | /* xgettext:c-format */ | |
13051 | (_("%pB(%pA): error: secondary reloc section is empty!"), | |
13052 | abfd, relsec); | |
13053 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13054 | result = false; |
ac4bf06c NC |
13055 | continue; |
13056 | } | |
a8e14f4c NC |
13057 | |
13058 | hdr->contents = bfd_alloc (abfd, hdr->sh_size); | |
13059 | if (hdr->contents == NULL) | |
13060 | continue; | |
13061 | ||
13062 | #if DEBUG_SECONDARY_RELOCS | |
13063 | fprintf (stderr, "write %u secondary relocs for %s from %s\n", | |
13064 | reloc_count, sec->name, relsec->name); | |
13065 | #endif | |
13066 | last_sym = NULL; | |
13067 | last_sym_idx = 0; | |
13068 | dst_rela = hdr->contents; | |
13069 | src_irel = (arelent *) esd->sec_info; | |
ac4bf06c NC |
13070 | if (src_irel == NULL) |
13071 | { | |
13072 | _bfd_error_handler | |
13073 | /* xgettext:c-format */ | |
13074 | (_("%pB(%pA): error: internal relocs missing for secondary reloc section"), | |
13075 | abfd, relsec); | |
13076 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13077 | result = false; |
ac4bf06c NC |
13078 | continue; |
13079 | } | |
a8e14f4c | 13080 | |
8ee54925 | 13081 | for (idx = 0; idx < reloc_count; idx++, dst_rela += entsize) |
a8e14f4c NC |
13082 | { |
13083 | Elf_Internal_Rela src_rela; | |
13084 | arelent *ptr; | |
13085 | asymbol *sym; | |
13086 | int n; | |
13087 | ||
13088 | ptr = src_irel + idx; | |
ac4bf06c NC |
13089 | if (ptr == NULL) |
13090 | { | |
13091 | _bfd_error_handler | |
13092 | /* xgettext:c-format */ | |
13093 | (_("%pB(%pA): error: reloc table entry %u is empty"), | |
13094 | abfd, relsec, idx); | |
13095 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13096 | result = false; |
ac4bf06c NC |
13097 | break; |
13098 | } | |
a8e14f4c | 13099 | |
ac4bf06c NC |
13100 | if (ptr->sym_ptr_ptr == NULL) |
13101 | { | |
13102 | /* FIXME: Is this an error ? */ | |
13103 | n = 0; | |
13104 | } | |
a8e14f4c NC |
13105 | else |
13106 | { | |
ac4bf06c NC |
13107 | sym = *ptr->sym_ptr_ptr; |
13108 | ||
13109 | if (sym == last_sym) | |
13110 | n = last_sym_idx; | |
13111 | else | |
a8e14f4c | 13112 | { |
ac4bf06c NC |
13113 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, & sym); |
13114 | if (n < 0) | |
13115 | { | |
13116 | _bfd_error_handler | |
13117 | /* xgettext:c-format */ | |
13118 | (_("%pB(%pA): error: secondary reloc %u references a missing symbol"), | |
13119 | abfd, relsec, idx); | |
13120 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13121 | result = false; |
ac4bf06c NC |
13122 | n = 0; |
13123 | } | |
13124 | ||
13125 | last_sym = sym; | |
13126 | last_sym_idx = n; | |
a8e14f4c | 13127 | } |
a8e14f4c | 13128 | |
ac4bf06c NC |
13129 | if (sym->the_bfd != NULL |
13130 | && sym->the_bfd->xvec != abfd->xvec | |
13131 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
13132 | { | |
13133 | _bfd_error_handler | |
13134 | /* xgettext:c-format */ | |
13135 | (_("%pB(%pA): error: secondary reloc %u references a deleted symbol"), | |
13136 | abfd, relsec, idx); | |
13137 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13138 | result = false; |
ac4bf06c NC |
13139 | n = 0; |
13140 | } | |
a8e14f4c NC |
13141 | } |
13142 | ||
ac4bf06c | 13143 | src_rela.r_offset = ptr->address + addr_offset; |
a8e14f4c NC |
13144 | if (ptr->howto == NULL) |
13145 | { | |
ac4bf06c NC |
13146 | _bfd_error_handler |
13147 | /* xgettext:c-format */ | |
13148 | (_("%pB(%pA): error: secondary reloc %u is of an unknown type"), | |
13149 | abfd, relsec, idx); | |
13150 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 13151 | result = false; |
ac4bf06c | 13152 | src_rela.r_info = r_info (0, 0); |
a8e14f4c | 13153 | } |
ac4bf06c NC |
13154 | else |
13155 | src_rela.r_info = r_info (n, ptr->howto->type); | |
a8e14f4c | 13156 | src_rela.r_addend = ptr->addend; |
8ee54925 NC |
13157 | |
13158 | if (entsize == ebd->s->sizeof_rel) | |
13159 | ebd->s->swap_reloc_out (abfd, &src_rela, dst_rela); | |
13160 | else /* entsize == ebd->s->sizeof_rela */ | |
13161 | ebd->s->swap_reloca_out (abfd, &src_rela, dst_rela); | |
a8e14f4c NC |
13162 | } |
13163 | } | |
13164 | } | |
13165 | ||
ac4bf06c | 13166 | return result; |
a8e14f4c | 13167 | } |