Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
82704155 | 3 | Copyright (C) 1993-2019 Free Software Foundation, Inc. |
252b5132 | 4 | |
5e8d7549 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
5e8d7549 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 10 | (at your option) any later version. |
252b5132 | 11 | |
5e8d7549 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
5e8d7549 | 17 | You should have received a copy of the GNU General Public License |
b34976b6 | 18 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 | 22 | |
1b74d094 BW |
23 | /* |
24 | SECTION | |
252b5132 RH |
25 | ELF backends |
26 | ||
27 | BFD support for ELF formats is being worked on. | |
28 | Currently, the best supported back ends are for sparc and i386 | |
29 | (running svr4 or Solaris 2). | |
30 | ||
31 | Documentation of the internals of the support code still needs | |
32 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 33 | haven't bothered yet. */ |
252b5132 | 34 | |
7ee38065 MS |
35 | /* For sparc64-cross-sparc32. */ |
36 | #define _SYSCALL32 | |
252b5132 | 37 | #include "sysdep.h" |
3a551c7a | 38 | #include <limits.h> |
3db64b00 | 39 | #include "bfd.h" |
252b5132 RH |
40 | #include "bfdlink.h" |
41 | #include "libbfd.h" | |
42 | #define ARCH_SIZE 0 | |
43 | #include "elf-bfd.h" | |
e0e8c97f | 44 | #include "libiberty.h" |
ff59fc36 | 45 | #include "safe-ctype.h" |
de64ce13 | 46 | #include "elf-linux-core.h" |
252b5132 | 47 | |
8bc7f138 L |
48 | #ifdef CORE_HEADER |
49 | #include CORE_HEADER | |
50 | #endif | |
51 | ||
217aa764 | 52 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 53 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
217aa764 | 54 | static bfd_boolean prep_headers (bfd *); |
ef10c3ac | 55 | static bfd_boolean swap_out_syms (bfd *, struct elf_strtab_hash **, int) ; |
718175fa | 56 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, |
276da9b3 | 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. */ | |
b34976b6 | 235 | bfd_boolean |
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) | |
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) | |
250 | return FALSE; | |
251 | elf_tdata (abfd)->o = o; | |
252 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
253 | } | |
b34976b6 | 254 | return TRUE; |
252b5132 RH |
255 | } |
256 | ||
0ffa91dd NC |
257 | |
258 | bfd_boolean | |
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 | ||
b34976b6 | 266 | bfd_boolean |
217aa764 | 267 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 268 | { |
c044fabd | 269 | /* I think this can be done just like an object file. */ |
228e534f AM |
270 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
271 | return FALSE; | |
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 |
95a6d235 | 300 | || shstrtabsize > bfd_get_file_size (abfd) |
06614111 NC |
301 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
302 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL) | |
c6c60d09 JJ |
303 | shstrtab = NULL; |
304 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
305 | { | |
306 | if (bfd_get_error () != bfd_error_system_call) | |
307 | bfd_set_error (bfd_error_file_truncated); | |
06614111 | 308 | bfd_release (abfd, shstrtab); |
c6c60d09 | 309 | shstrtab = NULL; |
3471d59d CC |
310 | /* Once we've failed to read it, make sure we don't keep |
311 | trying. Otherwise, we'll keep allocating space for | |
312 | the string table over and over. */ | |
313 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
314 | } |
315 | else | |
316 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 317 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 318 | } |
f075ee0c | 319 | return (char *) shstrtab; |
252b5132 RH |
320 | } |
321 | ||
322 | char * | |
217aa764 AM |
323 | bfd_elf_string_from_elf_section (bfd *abfd, |
324 | unsigned int shindex, | |
325 | unsigned int strindex) | |
252b5132 RH |
326 | { |
327 | Elf_Internal_Shdr *hdr; | |
328 | ||
329 | if (strindex == 0) | |
330 | return ""; | |
331 | ||
74f2e02b AM |
332 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
333 | return NULL; | |
334 | ||
252b5132 RH |
335 | hdr = elf_elfsections (abfd)[shindex]; |
336 | ||
06614111 NC |
337 | if (hdr->contents == NULL) |
338 | { | |
339 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
340 | { | |
341 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 342 | /* xgettext:c-format */ |
871b3ab2 | 343 | _bfd_error_handler (_("%pB: attempt to load strings from" |
63a5468a | 344 | " a non-string section (number %d)"), |
06614111 NC |
345 | abfd, shindex); |
346 | return NULL; | |
347 | } | |
b1fa9dd6 | 348 | |
06614111 NC |
349 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
350 | return NULL; | |
351 | } | |
eed5def8 NC |
352 | else |
353 | { | |
354 | /* PR 24273: The string section's contents may have already | |
355 | been loaded elsewhere, eg because a corrupt file has the | |
356 | string section index in the ELF header pointing at a group | |
357 | section. So be paranoid, and test that the last byte of | |
358 | the section is zero. */ | |
359 | if (hdr->sh_size == 0 || hdr->contents[hdr->sh_size - 1] != 0) | |
360 | return NULL; | |
361 | } | |
252b5132 RH |
362 | |
363 | if (strindex >= hdr->sh_size) | |
364 | { | |
1b3a8575 | 365 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 366 | _bfd_error_handler |
695344c0 | 367 | /* xgettext:c-format */ |
2dcf00ce AM |
368 | (_("%pB: invalid string offset %u >= %" PRIu64 " for section `%s'"), |
369 | abfd, strindex, (uint64_t) hdr->sh_size, | |
1b3a8575 | 370 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 371 | ? ".shstrtab" |
1b3a8575 | 372 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 373 | return NULL; |
252b5132 RH |
374 | } |
375 | ||
376 | return ((char *) hdr->contents) + strindex; | |
377 | } | |
378 | ||
6cdc0ccc AM |
379 | /* Read and convert symbols to internal format. |
380 | SYMCOUNT specifies the number of symbols to read, starting from | |
381 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
382 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
383 | symbols, and symbol section index extensions, respectively. |
384 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
385 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
386 | |
387 | Elf_Internal_Sym * | |
217aa764 AM |
388 | bfd_elf_get_elf_syms (bfd *ibfd, |
389 | Elf_Internal_Shdr *symtab_hdr, | |
390 | size_t symcount, | |
391 | size_t symoffset, | |
392 | Elf_Internal_Sym *intsym_buf, | |
393 | void *extsym_buf, | |
394 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
395 | { |
396 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 397 | void *alloc_ext; |
df622259 | 398 | const bfd_byte *esym; |
6cdc0ccc AM |
399 | Elf_External_Sym_Shndx *alloc_extshndx; |
400 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 401 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
402 | Elf_Internal_Sym *isym; |
403 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 404 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
405 | size_t extsym_size; |
406 | bfd_size_type amt; | |
407 | file_ptr pos; | |
408 | ||
e44a2c9c AM |
409 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
410 | abort (); | |
411 | ||
6cdc0ccc AM |
412 | if (symcount == 0) |
413 | return intsym_buf; | |
414 | ||
415 | /* Normal syms might have section extension entries. */ | |
416 | shndx_hdr = NULL; | |
6a40cf0c NC |
417 | if (elf_symtab_shndx_list (ibfd) != NULL) |
418 | { | |
419 | elf_section_list * entry; | |
420 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
421 | ||
422 | /* Find an index section that is linked to this symtab section. */ | |
423 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
424 | { |
425 | /* PR 20063. */ | |
426 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
427 | continue; | |
428 | ||
429 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
430 | { | |
431 | shndx_hdr = & entry->hdr; | |
432 | break; | |
433 | }; | |
434 | } | |
6a40cf0c NC |
435 | |
436 | if (shndx_hdr == NULL) | |
437 | { | |
438 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
439 | /* Not really accurate, but this was how the old code used to work. */ | |
440 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
441 | /* Otherwise we do nothing. The assumption is that | |
442 | the index table will not be needed. */ | |
443 | } | |
444 | } | |
6cdc0ccc AM |
445 | |
446 | /* Read the symbols. */ | |
447 | alloc_ext = NULL; | |
448 | alloc_extshndx = NULL; | |
4dd07732 | 449 | alloc_intsym = NULL; |
6cdc0ccc AM |
450 | bed = get_elf_backend_data (ibfd); |
451 | extsym_size = bed->s->sizeof_sym; | |
ef53be89 | 452 | amt = (bfd_size_type) symcount * extsym_size; |
6cdc0ccc AM |
453 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
454 | if (extsym_buf == NULL) | |
455 | { | |
d0fb9a8d | 456 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
457 | extsym_buf = alloc_ext; |
458 | } | |
459 | if (extsym_buf == NULL | |
460 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
461 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
462 | { | |
463 | intsym_buf = NULL; | |
464 | goto out; | |
465 | } | |
466 | ||
467 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
468 | extshndx_buf = NULL; | |
469 | else | |
470 | { | |
ef53be89 | 471 | amt = (bfd_size_type) symcount * sizeof (Elf_External_Sym_Shndx); |
6cdc0ccc AM |
472 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
473 | if (extshndx_buf == NULL) | |
474 | { | |
a50b1753 | 475 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
07d6d2b8 | 476 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); |
6cdc0ccc AM |
477 | extshndx_buf = alloc_extshndx; |
478 | } | |
479 | if (extshndx_buf == NULL | |
480 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
481 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
482 | { | |
483 | intsym_buf = NULL; | |
484 | goto out; | |
485 | } | |
486 | } | |
487 | ||
488 | if (intsym_buf == NULL) | |
489 | { | |
a50b1753 | 490 | alloc_intsym = (Elf_Internal_Sym *) |
07d6d2b8 | 491 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); |
4dd07732 | 492 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
493 | if (intsym_buf == NULL) |
494 | goto out; | |
495 | } | |
496 | ||
497 | /* Convert the symbols to internal form. */ | |
498 | isymend = intsym_buf + symcount; | |
a50b1753 | 499 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 500 | shndx = extshndx_buf; |
6cdc0ccc AM |
501 | isym < isymend; |
502 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
503 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
504 | { | |
505 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 506 | /* xgettext:c-format */ |
871b3ab2 | 507 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 508 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 509 | ibfd, (unsigned long) symoffset); |
4dd07732 AM |
510 | if (alloc_intsym != NULL) |
511 | free (alloc_intsym); | |
8384fb8f AM |
512 | intsym_buf = NULL; |
513 | goto out; | |
514 | } | |
6cdc0ccc AM |
515 | |
516 | out: | |
517 | if (alloc_ext != NULL) | |
518 | free (alloc_ext); | |
519 | if (alloc_extshndx != NULL) | |
520 | free (alloc_extshndx); | |
521 | ||
522 | return intsym_buf; | |
523 | } | |
524 | ||
5cab59f6 AM |
525 | /* Look up a symbol name. */ |
526 | const char * | |
be8dd2ca AM |
527 | bfd_elf_sym_name (bfd *abfd, |
528 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
529 | Elf_Internal_Sym *isym, |
530 | asection *sym_sec) | |
5cab59f6 | 531 | { |
26c61ae5 | 532 | const char *name; |
5cab59f6 | 533 | unsigned int iname = isym->st_name; |
be8dd2ca | 534 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 535 | |
138f35cc JJ |
536 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
537 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 538 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
539 | { |
540 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
541 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
542 | } | |
543 | ||
26c61ae5 L |
544 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
545 | if (name == NULL) | |
546 | name = "(null)"; | |
547 | else if (sym_sec && *name == '\0') | |
fd361982 | 548 | name = bfd_section_name (sym_sec); |
26c61ae5 L |
549 | |
550 | return name; | |
5cab59f6 AM |
551 | } |
552 | ||
dbb410c3 AM |
553 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
554 | sections. The first element is the flags, the rest are section | |
555 | pointers. */ | |
556 | ||
557 | typedef union elf_internal_group { | |
558 | Elf_Internal_Shdr *shdr; | |
559 | unsigned int flags; | |
560 | } Elf_Internal_Group; | |
561 | ||
b885599b AM |
562 | /* Return the name of the group signature symbol. Why isn't the |
563 | signature just a string? */ | |
564 | ||
565 | static const char * | |
217aa764 | 566 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 567 | { |
9dce4196 | 568 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
569 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
570 | Elf_External_Sym_Shndx eshndx; | |
571 | Elf_Internal_Sym isym; | |
b885599b | 572 | |
13792e9d L |
573 | /* First we need to ensure the symbol table is available. Make sure |
574 | that it is a symbol table section. */ | |
4fbb74a6 AM |
575 | if (ghdr->sh_link >= elf_numsections (abfd)) |
576 | return NULL; | |
13792e9d L |
577 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
578 | if (hdr->sh_type != SHT_SYMTAB | |
579 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
580 | return NULL; |
581 | ||
9dce4196 AM |
582 | /* Go read the symbol. */ |
583 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
584 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
585 | &isym, esym, &eshndx) == NULL) | |
b885599b | 586 | return NULL; |
9dce4196 | 587 | |
26c61ae5 | 588 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
589 | } |
590 | ||
dbb410c3 AM |
591 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
592 | ||
b34976b6 | 593 | static bfd_boolean |
217aa764 | 594 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
595 | { |
596 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
597 | ||
598 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
599 | is set to -1 if there are no SHT_GROUP sections. */ | |
600 | if (num_group == 0) | |
601 | { | |
602 | unsigned int i, shnum; | |
603 | ||
604 | /* First count the number of groups. If we have a SHT_GROUP | |
605 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 606 | shnum = elf_numsections (abfd); |
dbb410c3 | 607 | num_group = 0; |
08a40648 | 608 | |
44534af3 | 609 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 610 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 611 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
612 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
613 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 614 | |
dbb410c3 AM |
615 | for (i = 0; i < shnum; i++) |
616 | { | |
617 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 618 | |
44534af3 | 619 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
620 | num_group += 1; |
621 | } | |
622 | ||
623 | if (num_group == 0) | |
20dbb49d L |
624 | { |
625 | num_group = (unsigned) -1; | |
626 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 627 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
628 | } |
629 | else | |
dbb410c3 AM |
630 | { |
631 | /* We keep a list of elf section headers for group sections, | |
632 | so we can find them quickly. */ | |
20dbb49d | 633 | bfd_size_type amt; |
d0fb9a8d | 634 | |
20dbb49d | 635 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 | 636 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
07d6d2b8 | 637 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); |
dbb410c3 | 638 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 639 | return FALSE; |
4bba0fb1 AM |
640 | memset (elf_tdata (abfd)->group_sect_ptr, 0, |
641 | num_group * sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 642 | num_group = 0; |
ce497010 | 643 | |
dbb410c3 AM |
644 | for (i = 0; i < shnum; i++) |
645 | { | |
646 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 647 | |
44534af3 | 648 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 649 | { |
973ffd63 | 650 | unsigned char *src; |
dbb410c3 AM |
651 | Elf_Internal_Group *dest; |
652 | ||
07d6d2b8 AM |
653 | /* Make sure the group section has a BFD section |
654 | attached to it. */ | |
655 | if (!bfd_section_from_shdr (abfd, i)) | |
656 | return FALSE; | |
657 | ||
dbb410c3 AM |
658 | /* Add to list of sections. */ |
659 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
660 | num_group += 1; | |
661 | ||
662 | /* Read the raw contents. */ | |
663 | BFD_ASSERT (sizeof (*dest) >= 4); | |
664 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 | 665 | shdr->contents = (unsigned char *) |
eed5def8 | 666 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); |
1783205a NC |
667 | /* PR binutils/4110: Handle corrupt group headers. */ |
668 | if (shdr->contents == NULL) | |
669 | { | |
670 | _bfd_error_handler | |
695344c0 | 671 | /* xgettext:c-format */ |
871b3ab2 | 672 | (_("%pB: corrupt size field in group section" |
2dcf00ce AM |
673 | " header: %#" PRIx64), |
674 | abfd, (uint64_t) shdr->sh_size); | |
1783205a | 675 | bfd_set_error (bfd_error_bad_value); |
493a3386 NC |
676 | -- num_group; |
677 | continue; | |
1783205a NC |
678 | } |
679 | ||
680 | memset (shdr->contents, 0, amt); | |
681 | ||
682 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
683 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
684 | != shdr->sh_size)) | |
493a3386 NC |
685 | { |
686 | _bfd_error_handler | |
695344c0 | 687 | /* xgettext:c-format */ |
871b3ab2 | 688 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
689 | " header: %#" PRIx64 ""), |
690 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
691 | bfd_set_error (bfd_error_bad_value); |
692 | -- num_group; | |
63a5468a AM |
693 | /* PR 17510: If the group contents are even |
694 | partially corrupt, do not allow any of the | |
695 | contents to be used. */ | |
493a3386 NC |
696 | memset (shdr->contents, 0, amt); |
697 | continue; | |
698 | } | |
708d7d0d | 699 | |
dbb410c3 AM |
700 | /* Translate raw contents, a flag word followed by an |
701 | array of elf section indices all in target byte order, | |
702 | to the flag word followed by an array of elf section | |
703 | pointers. */ | |
704 | src = shdr->contents + shdr->sh_size; | |
705 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 706 | |
dbb410c3 AM |
707 | while (1) |
708 | { | |
709 | unsigned int idx; | |
710 | ||
711 | src -= 4; | |
712 | --dest; | |
713 | idx = H_GET_32 (abfd, src); | |
714 | if (src == shdr->contents) | |
715 | { | |
716 | dest->flags = idx; | |
b885599b AM |
717 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
718 | shdr->bfd_section->flags | |
719 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
720 | break; |
721 | } | |
4bba0fb1 | 722 | if (idx < shnum) |
bae363f1 L |
723 | { |
724 | dest->shdr = elf_elfsections (abfd)[idx]; | |
725 | /* PR binutils/23199: All sections in a | |
726 | section group should be marked with | |
727 | SHF_GROUP. But some tools generate | |
728 | broken objects without SHF_GROUP. Fix | |
729 | them up here. */ | |
730 | dest->shdr->sh_flags |= SHF_GROUP; | |
731 | } | |
4bba0fb1 AM |
732 | if (idx >= shnum |
733 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 734 | { |
4eca0228 | 735 | _bfd_error_handler |
4bba0fb1 AM |
736 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
737 | abfd, i); | |
738 | dest->shdr = NULL; | |
dbb410c3 | 739 | } |
dbb410c3 AM |
740 | } |
741 | } | |
742 | } | |
493a3386 NC |
743 | |
744 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
745 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
746 | { | |
747 | elf_tdata (abfd)->num_group = num_group; | |
748 | ||
749 | /* If all groups are invalid then fail. */ | |
750 | if (num_group == 0) | |
751 | { | |
752 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
753 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 754 | _bfd_error_handler |
871b3ab2 | 755 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
756 | bfd_set_error (bfd_error_bad_value); |
757 | } | |
758 | } | |
dbb410c3 AM |
759 | } |
760 | } | |
761 | ||
762 | if (num_group != (unsigned) -1) | |
763 | { | |
564e11c9 JW |
764 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
765 | unsigned int j; | |
dbb410c3 | 766 | |
564e11c9 | 767 | for (j = 0; j < num_group; j++) |
dbb410c3 | 768 | { |
564e11c9 JW |
769 | /* Begin search from previous found group. */ |
770 | unsigned i = (j + search_offset) % num_group; | |
771 | ||
dbb410c3 | 772 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 773 | Elf_Internal_Group *idx; |
0c54f692 | 774 | bfd_size_type n_elt; |
ce497010 NC |
775 | |
776 | if (shdr == NULL) | |
777 | continue; | |
778 | ||
779 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
780 | if (idx == NULL || shdr->sh_size < 4) |
781 | { | |
782 | /* See PR 21957 for a reproducer. */ | |
783 | /* xgettext:c-format */ | |
871b3ab2 | 784 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
785 | abfd, shdr->bfd_section); |
786 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
787 | bfd_set_error (bfd_error_bad_value); | |
788 | return FALSE; | |
789 | } | |
ce497010 | 790 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
791 | |
792 | /* Look through this group's sections to see if current | |
793 | section is a member. */ | |
794 | while (--n_elt != 0) | |
795 | if ((++idx)->shdr == hdr) | |
796 | { | |
e0e8c97f | 797 | asection *s = NULL; |
dbb410c3 AM |
798 | |
799 | /* We are a member of this group. Go looking through | |
800 | other members to see if any others are linked via | |
801 | next_in_group. */ | |
802 | idx = (Elf_Internal_Group *) shdr->contents; | |
803 | n_elt = shdr->sh_size / 4; | |
804 | while (--n_elt != 0) | |
4bba0fb1 AM |
805 | if ((++idx)->shdr != NULL |
806 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 807 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
808 | break; |
809 | if (n_elt != 0) | |
810 | { | |
dbb410c3 AM |
811 | /* Snarf the group name from other member, and |
812 | insert current section in circular list. */ | |
945906ff AM |
813 | elf_group_name (newsect) = elf_group_name (s); |
814 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
815 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
816 | } |
817 | else | |
818 | { | |
dbb410c3 AM |
819 | const char *gname; |
820 | ||
b885599b AM |
821 | gname = group_signature (abfd, shdr); |
822 | if (gname == NULL) | |
b34976b6 | 823 | return FALSE; |
945906ff | 824 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
825 | |
826 | /* Start a circular list with one element. */ | |
945906ff | 827 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 828 | } |
b885599b | 829 | |
9dce4196 AM |
830 | /* If the group section has been created, point to the |
831 | new member. */ | |
dbb410c3 | 832 | if (shdr->bfd_section != NULL) |
945906ff | 833 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 834 | |
564e11c9 JW |
835 | elf_tdata (abfd)->group_search_offset = i; |
836 | j = num_group - 1; | |
dbb410c3 AM |
837 | break; |
838 | } | |
839 | } | |
840 | } | |
841 | ||
945906ff | 842 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 843 | { |
695344c0 | 844 | /* xgettext:c-format */ |
871b3ab2 | 845 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 846 | abfd, newsect); |
493a3386 | 847 | return FALSE; |
dbb410c3 | 848 | } |
b34976b6 | 849 | return TRUE; |
dbb410c3 AM |
850 | } |
851 | ||
3d7f7666 | 852 | bfd_boolean |
dd863624 | 853 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
854 | { |
855 | unsigned int i; | |
856 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
857 | bfd_boolean result = TRUE; | |
dd863624 L |
858 | asection *s; |
859 | ||
860 | /* Process SHF_LINK_ORDER. */ | |
861 | for (s = abfd->sections; s != NULL; s = s->next) | |
862 | { | |
863 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
864 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
865 | { | |
866 | unsigned int elfsec = this_hdr->sh_link; | |
867 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
868 | not set the sh_link or sh_info fields. Hence we could | |
869 | get the situation where elfsec is 0. */ | |
870 | if (elfsec == 0) | |
871 | { | |
4fbb74a6 | 872 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
873 | if (bed->link_order_error_handler) |
874 | bed->link_order_error_handler | |
695344c0 | 875 | /* xgettext:c-format */ |
871b3ab2 | 876 | (_("%pB: warning: sh_link not set for section `%pA'"), |
dd863624 L |
877 | abfd, s); |
878 | } | |
879 | else | |
880 | { | |
91d6fa6a | 881 | asection *linksec = NULL; |
25bbc984 | 882 | |
4fbb74a6 AM |
883 | if (elfsec < elf_numsections (abfd)) |
884 | { | |
885 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 886 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 887 | } |
25bbc984 L |
888 | |
889 | /* PR 1991, 2008: | |
890 | Some strip/objcopy may leave an incorrect value in | |
891 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 892 | if (linksec == NULL) |
25bbc984 | 893 | { |
4eca0228 | 894 | _bfd_error_handler |
695344c0 | 895 | /* xgettext:c-format */ |
871b3ab2 | 896 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 897 | s->owner, elfsec, s); |
25bbc984 L |
898 | result = FALSE; |
899 | } | |
900 | ||
91d6fa6a | 901 | elf_linked_to_section (s) = linksec; |
dd863624 L |
902 | } |
903 | } | |
53720c49 AM |
904 | else if (this_hdr->sh_type == SHT_GROUP |
905 | && elf_next_in_group (s) == NULL) | |
906 | { | |
4eca0228 | 907 | _bfd_error_handler |
695344c0 | 908 | /* xgettext:c-format */ |
871b3ab2 | 909 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
910 | abfd, elf_section_data (s)->this_idx); |
911 | result = FALSE; | |
912 | } | |
dd863624 | 913 | } |
3d7f7666 | 914 | |
dd863624 | 915 | /* Process section groups. */ |
3d7f7666 L |
916 | if (num_group == (unsigned) -1) |
917 | return result; | |
918 | ||
919 | for (i = 0; i < num_group; i++) | |
920 | { | |
921 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
922 | Elf_Internal_Group *idx; |
923 | unsigned int n_elt; | |
3d7f7666 | 924 | |
4b0e8a5f NC |
925 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
926 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
927 | { | |
4eca0228 | 928 | _bfd_error_handler |
695344c0 | 929 | /* xgettext:c-format */ |
871b3ab2 | 930 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
931 | abfd, i); |
932 | result = FALSE; | |
933 | continue; | |
934 | } | |
935 | ||
936 | idx = (Elf_Internal_Group *) shdr->contents; | |
937 | n_elt = shdr->sh_size / 4; | |
1b786873 | 938 | |
3d7f7666 | 939 | while (--n_elt != 0) |
24d3e51b NC |
940 | { |
941 | ++ idx; | |
942 | ||
943 | if (idx->shdr == NULL) | |
944 | continue; | |
945 | else if (idx->shdr->bfd_section) | |
946 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
947 | else if (idx->shdr->sh_type != SHT_RELA |
948 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
949 | { |
950 | /* There are some unknown sections in the group. */ | |
951 | _bfd_error_handler | |
952 | /* xgettext:c-format */ | |
871b3ab2 | 953 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
954 | abfd, |
955 | idx->shdr->sh_type, | |
956 | bfd_elf_string_from_elf_section (abfd, | |
957 | (elf_elfheader (abfd) | |
958 | ->e_shstrndx), | |
959 | idx->shdr->sh_name), | |
960 | shdr->bfd_section); | |
961 | result = FALSE; | |
962 | } | |
963 | } | |
3d7f7666 | 964 | } |
24d3e51b | 965 | |
3d7f7666 L |
966 | return result; |
967 | } | |
968 | ||
72adc230 AM |
969 | bfd_boolean |
970 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
971 | { | |
972 | return elf_next_in_group (sec) != NULL; | |
973 | } | |
974 | ||
cb7f4b29 AM |
975 | const char * |
976 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
977 | { | |
978 | if (elf_sec_group (sec) != NULL) | |
979 | return elf_group_name (sec); | |
980 | return NULL; | |
981 | } | |
982 | ||
f6fe1ccd L |
983 | static char * |
984 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
985 | { | |
986 | unsigned int len = strlen (name); | |
987 | char *new_name = bfd_alloc (abfd, len + 2); | |
988 | if (new_name == NULL) | |
989 | return NULL; | |
990 | new_name[0] = '.'; | |
991 | new_name[1] = 'z'; | |
992 | memcpy (new_name + 2, name + 1, len); | |
993 | return new_name; | |
994 | } | |
995 | ||
996 | static char * | |
997 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
998 | { | |
999 | unsigned int len = strlen (name); | |
1000 | char *new_name = bfd_alloc (abfd, len); | |
1001 | if (new_name == NULL) | |
1002 | return NULL; | |
1003 | new_name[0] = '.'; | |
1004 | memcpy (new_name + 1, name + 2, len - 1); | |
1005 | return new_name; | |
1006 | } | |
1007 | ||
cc5277b1 ML |
1008 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
1009 | ||
1010 | struct lto_section | |
1011 | { | |
1012 | int16_t major_version; | |
1013 | int16_t minor_version; | |
1014 | unsigned char slim_object; | |
1015 | ||
1016 | /* Flags is a private field that is not defined publicly. */ | |
1017 | uint16_t flags; | |
1018 | }; | |
1019 | ||
252b5132 RH |
1020 | /* Make a BFD section from an ELF section. We store a pointer to the |
1021 | BFD section in the bfd_section field of the header. */ | |
1022 | ||
b34976b6 | 1023 | bfd_boolean |
217aa764 AM |
1024 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1025 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1026 | const char *name, |
1027 | int shindex) | |
252b5132 RH |
1028 | { |
1029 | asection *newsect; | |
1030 | flagword flags; | |
9c5bfbb7 | 1031 | const struct elf_backend_data *bed; |
252b5132 RH |
1032 | |
1033 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1034 | return TRUE; |
252b5132 RH |
1035 | |
1036 | newsect = bfd_make_section_anyway (abfd, name); | |
1037 | if (newsect == NULL) | |
b34976b6 | 1038 | return FALSE; |
252b5132 | 1039 | |
1829f4b2 AM |
1040 | hdr->bfd_section = newsect; |
1041 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1042 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1043 | |
2f89ff8d L |
1044 | /* Always use the real type/flags. */ |
1045 | elf_section_type (newsect) = hdr->sh_type; | |
1046 | elf_section_flags (newsect) = hdr->sh_flags; | |
1047 | ||
252b5132 RH |
1048 | newsect->filepos = hdr->sh_offset; |
1049 | ||
fd361982 AM |
1050 | if (!bfd_set_section_vma (newsect, hdr->sh_addr) |
1051 | || !bfd_set_section_size (newsect, hdr->sh_size) | |
1052 | || !bfd_set_section_alignment (newsect, bfd_log2 (hdr->sh_addralign))) | |
b34976b6 | 1053 | return FALSE; |
252b5132 RH |
1054 | |
1055 | flags = SEC_NO_FLAGS; | |
1056 | if (hdr->sh_type != SHT_NOBITS) | |
1057 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1058 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1059 | flags |= SEC_GROUP; |
252b5132 RH |
1060 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1061 | { | |
1062 | flags |= SEC_ALLOC; | |
1063 | if (hdr->sh_type != SHT_NOBITS) | |
1064 | flags |= SEC_LOAD; | |
1065 | } | |
1066 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1067 | flags |= SEC_READONLY; | |
1068 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1069 | flags |= SEC_CODE; | |
1070 | else if ((flags & SEC_LOAD) != 0) | |
1071 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1072 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1073 | { | |
1074 | flags |= SEC_MERGE; | |
1075 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1076 | } |
84865015 NC |
1077 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1078 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1079 | if (hdr->sh_flags & SHF_GROUP) |
1080 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1081 | return FALSE; |
13ae64f3 JJ |
1082 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1083 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1084 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1085 | flags |= SEC_EXCLUDE; | |
252b5132 | 1086 | |
df3a023b AM |
1087 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1088 | { | |
1089 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1090 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1091 | byte. */ | |
1092 | case ELFOSABI_NONE: | |
1093 | case ELFOSABI_GNU: | |
1094 | case ELFOSABI_FREEBSD: | |
1095 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) | |
1096 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1097 | break; | |
1098 | } | |
1099 | ||
3d2b39cf | 1100 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1101 | { |
3d2b39cf L |
1102 | /* The debugging sections appear to be recognized only by name, |
1103 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1104 | if (name [0] == '.') |
1105 | { | |
f073ced3 AM |
1106 | const char *p; |
1107 | int n; | |
1108 | if (name[1] == 'd') | |
1109 | p = ".debug", n = 6; | |
1110 | else if (name[1] == 'g' && name[2] == 'n') | |
1111 | p = ".gnu.linkonce.wi.", n = 17; | |
1112 | else if (name[1] == 'g' && name[2] == 'd') | |
1113 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
1114 | else if (name[1] == 'l') | |
1115 | p = ".line", n = 5; | |
1116 | else if (name[1] == 's') | |
1117 | p = ".stab", n = 5; | |
1118 | else if (name[1] == 'z') | |
1119 | p = ".zdebug", n = 7; | |
1120 | else | |
1121 | p = NULL, n = 0; | |
1122 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
1123 | flags |= SEC_DEBUGGING; |
1124 | } | |
1125 | } | |
252b5132 RH |
1126 | |
1127 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1128 | only link a single copy of the section. This is used to support | |
1129 | g++. g++ will emit each template expansion in its own section. | |
1130 | The symbols will be defined as weak, so that multiple definitions | |
1131 | are permitted. The GNU linker extension is to actually discard | |
1132 | all but one of the sections. */ | |
0112cd26 | 1133 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1134 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1135 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1136 | ||
fa152c49 JW |
1137 | bed = get_elf_backend_data (abfd); |
1138 | if (bed->elf_backend_section_flags) | |
1139 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1140 | return FALSE; |
fa152c49 | 1141 | |
fd361982 | 1142 | if (!bfd_set_section_flags (newsect, flags)) |
b34976b6 | 1143 | return FALSE; |
252b5132 | 1144 | |
718175fa JK |
1145 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1146 | separate debug info files which may have the segments offsets corrupted. | |
1147 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1148 | if (hdr->sh_type == SHT_NOTE) | |
1149 | { | |
baea7ef1 | 1150 | bfd_byte *contents; |
718175fa | 1151 | |
baea7ef1 | 1152 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1153 | return FALSE; |
1154 | ||
276da9b3 L |
1155 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1156 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1157 | free (contents); |
1158 | } | |
1159 | ||
252b5132 RH |
1160 | if ((flags & SEC_ALLOC) != 0) |
1161 | { | |
1162 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1163 | unsigned int i, nload; |
1164 | ||
1165 | /* Some ELF linkers produce binaries with all the program header | |
1166 | p_paddr fields zero. If we have such a binary with more than | |
1167 | one PT_LOAD header, then leave the section lma equal to vma | |
1168 | so that we don't create sections with overlapping lma. */ | |
1169 | phdr = elf_tdata (abfd)->phdr; | |
1170 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1171 | if (phdr->p_paddr != 0) | |
1172 | break; | |
1173 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1174 | ++nload; | |
1175 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1176 | return TRUE; | |
252b5132 | 1177 | |
252b5132 RH |
1178 | phdr = elf_tdata (abfd)->phdr; |
1179 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1180 | { | |
86b2281f AM |
1181 | if (((phdr->p_type == PT_LOAD |
1182 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1183 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1184 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1185 | { |
88967714 AM |
1186 | if ((flags & SEC_LOAD) == 0) |
1187 | newsect->lma = (phdr->p_paddr | |
1188 | + hdr->sh_addr - phdr->p_vaddr); | |
1189 | else | |
1190 | /* We used to use the same adjustment for SEC_LOAD | |
1191 | sections, but that doesn't work if the segment | |
1192 | is packed with code from multiple VMAs. | |
1193 | Instead we calculate the section LMA based on | |
1194 | the segment LMA. It is assumed that the | |
1195 | segment will contain sections with contiguous | |
1196 | LMAs, even if the VMAs are not. */ | |
1197 | newsect->lma = (phdr->p_paddr | |
1198 | + hdr->sh_offset - phdr->p_offset); | |
1199 | ||
1200 | /* With contiguous segments, we can't tell from file | |
1201 | offsets whether a section with zero size should | |
1202 | be placed at the end of one segment or the | |
1203 | beginning of the next. Decide based on vaddr. */ | |
1204 | if (hdr->sh_addr >= phdr->p_vaddr | |
1205 | && (hdr->sh_addr + hdr->sh_size | |
1206 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1207 | break; | |
252b5132 RH |
1208 | } |
1209 | } | |
1210 | } | |
1211 | ||
4a114e3e L |
1212 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1213 | .zdebug_*, after the section flags is set. */ | |
1214 | if ((flags & SEC_DEBUGGING) | |
1215 | && ((name[1] == 'd' && name[6] == '_') | |
1216 | || (name[1] == 'z' && name[7] == '_'))) | |
1217 | { | |
1218 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1219 | int compression_header_size; |
dab394de | 1220 | bfd_size_type uncompressed_size; |
4207142d | 1221 | unsigned int uncompressed_align_power; |
151411f8 L |
1222 | bfd_boolean compressed |
1223 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1224 | &compression_header_size, |
4207142d MW |
1225 | &uncompressed_size, |
1226 | &uncompressed_align_power); | |
151411f8 | 1227 | if (compressed) |
4a114e3e L |
1228 | { |
1229 | /* Compressed section. Check if we should decompress. */ | |
1230 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1231 | action = decompress; | |
1232 | } | |
151411f8 L |
1233 | |
1234 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1235 | section. Check if we should compress. */ | |
1236 | if (action == nothing) | |
4a114e3e | 1237 | { |
151411f8 L |
1238 | if (newsect->size != 0 |
1239 | && (abfd->flags & BFD_COMPRESS) | |
1240 | && compression_header_size >= 0 | |
dab394de | 1241 | && uncompressed_size > 0 |
151411f8 L |
1242 | && (!compressed |
1243 | || ((compression_header_size > 0) | |
1244 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1245 | action = compress; |
151411f8 L |
1246 | else |
1247 | return TRUE; | |
4a114e3e L |
1248 | } |
1249 | ||
151411f8 | 1250 | if (action == compress) |
4a114e3e | 1251 | { |
4a114e3e L |
1252 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1253 | { | |
4eca0228 | 1254 | _bfd_error_handler |
695344c0 | 1255 | /* xgettext:c-format */ |
871b3ab2 | 1256 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1257 | abfd, name); |
1258 | return FALSE; | |
1259 | } | |
151411f8 L |
1260 | } |
1261 | else | |
1262 | { | |
4a114e3e L |
1263 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1264 | { | |
4eca0228 | 1265 | _bfd_error_handler |
695344c0 | 1266 | /* xgettext:c-format */ |
871b3ab2 | 1267 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1268 | abfd, name); |
1269 | return FALSE; | |
1270 | } | |
151411f8 L |
1271 | } |
1272 | ||
f6fe1ccd | 1273 | if (abfd->is_linker_input) |
151411f8 | 1274 | { |
f6fe1ccd L |
1275 | if (name[1] == 'z' |
1276 | && (action == decompress | |
1277 | || (action == compress | |
1278 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1279 | { |
f6fe1ccd L |
1280 | /* Convert section name from .zdebug_* to .debug_* so |
1281 | that linker will consider this section as a debug | |
1282 | section. */ | |
1283 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1284 | if (new_name == NULL) |
1285 | return FALSE; | |
fd361982 | 1286 | bfd_rename_section (newsect, new_name); |
151411f8 | 1287 | } |
4a114e3e | 1288 | } |
f6fe1ccd L |
1289 | else |
1290 | /* For objdump, don't rename the section. For objcopy, delay | |
1291 | section rename to elf_fake_sections. */ | |
1292 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1293 | } |
1294 | ||
cc5277b1 ML |
1295 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1296 | section. */ | |
1297 | const char *lto_section_name = ".gnu.lto_.lto."; | |
1298 | if (strncmp (name, lto_section_name, strlen (lto_section_name)) == 0) | |
1299 | { | |
1300 | struct lto_section lsection; | |
1301 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1302 | sizeof (struct lto_section))) | |
1303 | abfd->lto_slim_object = lsection.slim_object; | |
1304 | } | |
1305 | ||
b34976b6 | 1306 | return TRUE; |
252b5132 RH |
1307 | } |
1308 | ||
84865015 NC |
1309 | const char *const bfd_elf_section_type_names[] = |
1310 | { | |
252b5132 RH |
1311 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1312 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1313 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1314 | }; | |
1315 | ||
1049f94e | 1316 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1317 | output, and the reloc is against an external symbol, and nothing |
1318 | has given us any additional addend, the resulting reloc will also | |
1319 | be against the same symbol. In such a case, we don't want to | |
1320 | change anything about the way the reloc is handled, since it will | |
1321 | all be done at final link time. Rather than put special case code | |
1322 | into bfd_perform_relocation, all the reloc types use this howto | |
1323 | function. It just short circuits the reloc if producing | |
1049f94e | 1324 | relocatable output against an external symbol. */ |
252b5132 | 1325 | |
252b5132 | 1326 | bfd_reloc_status_type |
217aa764 AM |
1327 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1328 | arelent *reloc_entry, | |
1329 | asymbol *symbol, | |
1330 | void *data ATTRIBUTE_UNUSED, | |
1331 | asection *input_section, | |
1332 | bfd *output_bfd, | |
1333 | char **error_message ATTRIBUTE_UNUSED) | |
1334 | { | |
1335 | if (output_bfd != NULL | |
252b5132 RH |
1336 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1337 | && (! reloc_entry->howto->partial_inplace | |
1338 | || reloc_entry->addend == 0)) | |
1339 | { | |
1340 | reloc_entry->address += input_section->output_offset; | |
1341 | return bfd_reloc_ok; | |
1342 | } | |
1343 | ||
1344 | return bfd_reloc_continue; | |
1345 | } | |
1346 | \f | |
84865015 NC |
1347 | /* Returns TRUE if section A matches section B. |
1348 | Names, addresses and links may be different, but everything else | |
1349 | should be the same. */ | |
1350 | ||
1351 | static bfd_boolean | |
5522f910 NC |
1352 | section_match (const Elf_Internal_Shdr * a, |
1353 | const Elf_Internal_Shdr * b) | |
84865015 | 1354 | { |
ac85e67c AM |
1355 | if (a->sh_type != b->sh_type |
1356 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1357 | || a->sh_addralign != b->sh_addralign | |
1358 | || a->sh_entsize != b->sh_entsize) | |
1359 | return FALSE; | |
1360 | if (a->sh_type == SHT_SYMTAB | |
1361 | || a->sh_type == SHT_STRTAB) | |
1362 | return TRUE; | |
1363 | return a->sh_size == b->sh_size; | |
84865015 NC |
1364 | } |
1365 | ||
1366 | /* Find a section in OBFD that has the same characteristics | |
1367 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1368 | none can be found. Check's section HINT first, as this is likely | |
1369 | to be the correct section. */ | |
1370 | ||
1371 | static unsigned int | |
5cc4ca83 ST |
1372 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1373 | const unsigned int hint) | |
84865015 NC |
1374 | { |
1375 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1376 | unsigned int i; | |
1377 | ||
a55c9876 NC |
1378 | BFD_ASSERT (iheader != NULL); |
1379 | ||
1380 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1381 | if (hint < elf_numsections (obfd) |
1382 | && oheaders[hint] != NULL | |
a55c9876 | 1383 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1384 | return hint; |
1385 | ||
1386 | for (i = 1; i < elf_numsections (obfd); i++) | |
1387 | { | |
1388 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1389 | ||
a55c9876 NC |
1390 | if (oheader == NULL) |
1391 | continue; | |
84865015 NC |
1392 | if (section_match (oheader, iheader)) |
1393 | /* FIXME: Do we care if there is a potential for | |
1394 | multiple matches ? */ | |
1395 | return i; | |
1396 | } | |
1397 | ||
1398 | return SHN_UNDEF; | |
1399 | } | |
1400 | ||
5522f910 NC |
1401 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1402 | Processor specific section, based upon a matching input section. | |
1403 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1404 | |
5522f910 NC |
1405 | static bfd_boolean |
1406 | copy_special_section_fields (const bfd *ibfd, | |
1407 | bfd *obfd, | |
1408 | const Elf_Internal_Shdr *iheader, | |
1409 | Elf_Internal_Shdr *oheader, | |
1410 | const unsigned int secnum) | |
1411 | { | |
1412 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1413 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1414 | bfd_boolean changed = FALSE; | |
1415 | unsigned int sh_link; | |
1416 | ||
1417 | if (oheader->sh_type == SHT_NOBITS) | |
1418 | { | |
1419 | /* This is a feature for objcopy --only-keep-debug: | |
1420 | When a section's type is changed to NOBITS, we preserve | |
1421 | the sh_link and sh_info fields so that they can be | |
1422 | matched up with the original. | |
1423 | ||
1424 | Note: Strictly speaking these assignments are wrong. | |
1425 | The sh_link and sh_info fields should point to the | |
1426 | relevent sections in the output BFD, which may not be in | |
1427 | the same location as they were in the input BFD. But | |
1428 | the whole point of this action is to preserve the | |
1429 | original values of the sh_link and sh_info fields, so | |
1430 | that they can be matched up with the section headers in | |
1431 | the original file. So strictly speaking we may be | |
1432 | creating an invalid ELF file, but it is only for a file | |
1433 | that just contains debug info and only for sections | |
1434 | without any contents. */ | |
1435 | if (oheader->sh_link == 0) | |
1436 | oheader->sh_link = iheader->sh_link; | |
1437 | if (oheader->sh_info == 0) | |
1438 | oheader->sh_info = iheader->sh_info; | |
1439 | return TRUE; | |
1440 | } | |
1441 | ||
1442 | /* Allow the target a chance to decide how these fields should be set. */ | |
1443 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1444 | && bed->elf_backend_copy_special_section_fields | |
1445 | (ibfd, obfd, iheader, oheader)) | |
1446 | return TRUE; | |
1447 | ||
1448 | /* We have an iheader which might match oheader, and which has non-zero | |
1449 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1450 | the section in the output bfd which corresponds to the linked section | |
1451 | in the input bfd. */ | |
1452 | if (iheader->sh_link != SHN_UNDEF) | |
1453 | { | |
4f3ca05b NC |
1454 | /* See PR 20931 for a reproducer. */ |
1455 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1456 | { | |
76cfced5 | 1457 | _bfd_error_handler |
4f3ca05b | 1458 | /* xgettext:c-format */ |
9793eb77 | 1459 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1460 | ibfd, iheader->sh_link, secnum); |
1461 | return FALSE; | |
1462 | } | |
1463 | ||
5522f910 NC |
1464 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1465 | if (sh_link != SHN_UNDEF) | |
1466 | { | |
1467 | oheader->sh_link = sh_link; | |
1468 | changed = TRUE; | |
1469 | } | |
1470 | else | |
1471 | /* FIXME: Should we install iheader->sh_link | |
1472 | if we could not find a match ? */ | |
76cfced5 | 1473 | _bfd_error_handler |
695344c0 | 1474 | /* xgettext:c-format */ |
9793eb77 | 1475 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1476 | } |
1477 | ||
1478 | if (iheader->sh_info) | |
1479 | { | |
1480 | /* The sh_info field can hold arbitrary information, but if the | |
1481 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1482 | section index. */ | |
1483 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1484 | { | |
1485 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1486 | iheader->sh_info); | |
1487 | if (sh_link != SHN_UNDEF) | |
1488 | oheader->sh_flags |= SHF_INFO_LINK; | |
1489 | } | |
1490 | else | |
1491 | /* No idea what it means - just copy it. */ | |
1492 | sh_link = iheader->sh_info; | |
1493 | ||
1494 | if (sh_link != SHN_UNDEF) | |
1495 | { | |
1496 | oheader->sh_info = sh_link; | |
1497 | changed = TRUE; | |
1498 | } | |
1499 | else | |
76cfced5 | 1500 | _bfd_error_handler |
695344c0 | 1501 | /* xgettext:c-format */ |
9793eb77 | 1502 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1503 | } |
1504 | ||
1505 | return changed; | |
1506 | } | |
07d6d2b8 | 1507 | |
0ac4564e L |
1508 | /* Copy the program header and other data from one object module to |
1509 | another. */ | |
252b5132 | 1510 | |
b34976b6 | 1511 | bfd_boolean |
217aa764 | 1512 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1513 | { |
5522f910 NC |
1514 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1515 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1516 | const struct elf_backend_data *bed; | |
84865015 NC |
1517 | unsigned int i; |
1518 | ||
2d502050 | 1519 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1520 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1521 | return TRUE; |
2d502050 | 1522 | |
57b828ef L |
1523 | if (!elf_flags_init (obfd)) |
1524 | { | |
1525 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1526 | elf_flags_init (obfd) = TRUE; | |
1527 | } | |
2d502050 | 1528 | |
0ac4564e | 1529 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1530 | |
1531 | /* Also copy the EI_OSABI field. */ | |
1532 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1533 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1534 | |
5522f910 NC |
1535 | /* If set, copy the EI_ABIVERSION field. */ |
1536 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1537 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1538 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1539 | |
104d59d1 JM |
1540 | /* Copy object attributes. */ |
1541 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1542 | |
84865015 NC |
1543 | if (iheaders == NULL || oheaders == NULL) |
1544 | return TRUE; | |
63b9bbb7 | 1545 | |
5522f910 NC |
1546 | bed = get_elf_backend_data (obfd); |
1547 | ||
1548 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1549 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1550 | { |
84865015 NC |
1551 | unsigned int j; |
1552 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1553 | |
5522f910 NC |
1554 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1555 | because of a special case need for generating separate debug info | |
1556 | files. See below for more details. */ | |
84865015 NC |
1557 | if (oheader == NULL |
1558 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1559 | && oheader->sh_type < SHT_LOOS)) |
1560 | continue; | |
1561 | ||
1562 | /* Ignore empty sections, and sections whose | |
1563 | fields have already been initialised. */ | |
1564 | if (oheader->sh_size == 0 | |
84865015 NC |
1565 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1566 | continue; | |
63b9bbb7 | 1567 | |
84865015 | 1568 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1569 | First we try for a direct mapping between the input and output sections. */ |
1570 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1571 | { | |
1572 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1573 | ||
1574 | if (iheader == NULL) | |
1575 | continue; | |
1576 | ||
1577 | if (oheader->bfd_section != NULL | |
1578 | && iheader->bfd_section != NULL | |
1579 | && iheader->bfd_section->output_section != NULL | |
1580 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1581 | { | |
1582 | /* We have found a connection from the input section to the | |
1583 | output section. Attempt to copy the header fields. If | |
1584 | this fails then do not try any further sections - there | |
1585 | should only be a one-to-one mapping between input and output. */ | |
1586 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1587 | j = elf_numsections (ibfd); | |
1588 | break; | |
1589 | } | |
1590 | } | |
1591 | ||
1592 | if (j < elf_numsections (ibfd)) | |
1593 | continue; | |
1594 | ||
1595 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1596 | Unfortunately we cannot compare names as the output string table |
1597 | is empty, so instead we check size, address and type. */ | |
1598 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1599 | { | |
5522f910 | 1600 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1601 | |
5522f910 NC |
1602 | if (iheader == NULL) |
1603 | continue; | |
1604 | ||
1605 | /* Try matching fields in the input section's header. | |
1606 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1607 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1608 | input type. */ | |
1609 | if ((oheader->sh_type == SHT_NOBITS | |
1610 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1611 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1612 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1613 | && iheader->sh_addralign == oheader->sh_addralign |
1614 | && iheader->sh_entsize == oheader->sh_entsize | |
1615 | && iheader->sh_size == oheader->sh_size | |
1616 | && iheader->sh_addr == oheader->sh_addr | |
1617 | && (iheader->sh_info != oheader->sh_info | |
1618 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1619 | { |
5522f910 NC |
1620 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1621 | break; | |
63b9bbb7 NC |
1622 | } |
1623 | } | |
5522f910 NC |
1624 | |
1625 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1626 | { | |
1627 | /* Final attempt. Call the backend copy function | |
1628 | with a NULL input section. */ | |
1629 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1630 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1631 | } | |
63b9bbb7 NC |
1632 | } |
1633 | ||
b34976b6 | 1634 | return TRUE; |
2d502050 L |
1635 | } |
1636 | ||
cedc298e L |
1637 | static const char * |
1638 | get_segment_type (unsigned int p_type) | |
1639 | { | |
1640 | const char *pt; | |
1641 | switch (p_type) | |
1642 | { | |
1643 | case PT_NULL: pt = "NULL"; break; | |
1644 | case PT_LOAD: pt = "LOAD"; break; | |
1645 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1646 | case PT_INTERP: pt = "INTERP"; break; | |
1647 | case PT_NOTE: pt = "NOTE"; break; | |
1648 | case PT_SHLIB: pt = "SHLIB"; break; | |
1649 | case PT_PHDR: pt = "PHDR"; break; | |
1650 | case PT_TLS: pt = "TLS"; break; | |
1651 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1652 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1653 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1654 | default: pt = NULL; break; | |
1655 | } | |
1656 | return pt; | |
1657 | } | |
1658 | ||
f0b79d91 L |
1659 | /* Print out the program headers. */ |
1660 | ||
b34976b6 | 1661 | bfd_boolean |
217aa764 | 1662 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1663 | { |
a50b1753 | 1664 | FILE *f = (FILE *) farg; |
252b5132 RH |
1665 | Elf_Internal_Phdr *p; |
1666 | asection *s; | |
1667 | bfd_byte *dynbuf = NULL; | |
1668 | ||
1669 | p = elf_tdata (abfd)->phdr; | |
1670 | if (p != NULL) | |
1671 | { | |
1672 | unsigned int i, c; | |
1673 | ||
1674 | fprintf (f, _("\nProgram Header:\n")); | |
1675 | c = elf_elfheader (abfd)->e_phnum; | |
1676 | for (i = 0; i < c; i++, p++) | |
1677 | { | |
cedc298e | 1678 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1679 | char buf[20]; |
1680 | ||
cedc298e | 1681 | if (pt == NULL) |
252b5132 | 1682 | { |
cedc298e L |
1683 | sprintf (buf, "0x%lx", p->p_type); |
1684 | pt = buf; | |
252b5132 | 1685 | } |
dc810e39 | 1686 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1687 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1688 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1689 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1690 | fprintf (f, " paddr 0x"); |
60b89a18 | 1691 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1692 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1693 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1694 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1695 | fprintf (f, " memsz 0x"); |
60b89a18 | 1696 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1697 | fprintf (f, " flags %c%c%c", |
1698 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1699 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1700 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1701 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1702 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1703 | fprintf (f, "\n"); |
1704 | } | |
1705 | } | |
1706 | ||
1707 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1708 | if (s != NULL) | |
1709 | { | |
cb33740c | 1710 | unsigned int elfsec; |
dc810e39 | 1711 | unsigned long shlink; |
252b5132 RH |
1712 | bfd_byte *extdyn, *extdynend; |
1713 | size_t extdynsize; | |
217aa764 | 1714 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1715 | |
1716 | fprintf (f, _("\nDynamic Section:\n")); | |
1717 | ||
eea6121a | 1718 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1719 | goto error_return; |
1720 | ||
1721 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1722 | if (elfsec == SHN_BAD) |
252b5132 | 1723 | goto error_return; |
dc810e39 | 1724 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1725 | |
1726 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1727 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1728 | ||
1729 | extdyn = dynbuf; | |
06614111 NC |
1730 | /* PR 17512: file: 6f427532. */ |
1731 | if (s->size < extdynsize) | |
1732 | goto error_return; | |
eea6121a | 1733 | extdynend = extdyn + s->size; |
1036838a | 1734 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1735 | Fix range check. */ |
1036838a | 1736 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1737 | { |
1738 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1739 | const char *name = ""; |
252b5132 | 1740 | char ab[20]; |
b34976b6 | 1741 | bfd_boolean stringp; |
ad9563d6 | 1742 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1743 | |
217aa764 | 1744 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1745 | |
1746 | if (dyn.d_tag == DT_NULL) | |
1747 | break; | |
1748 | ||
b34976b6 | 1749 | stringp = FALSE; |
252b5132 RH |
1750 | switch (dyn.d_tag) |
1751 | { | |
1752 | default: | |
ad9563d6 CM |
1753 | if (bed->elf_backend_get_target_dtag) |
1754 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1755 | ||
1756 | if (!strcmp (name, "")) | |
1757 | { | |
cd9af601 | 1758 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1759 | name = ab; |
1760 | } | |
252b5132 RH |
1761 | break; |
1762 | ||
b34976b6 | 1763 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1764 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1765 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1766 | case DT_HASH: name = "HASH"; break; | |
1767 | case DT_STRTAB: name = "STRTAB"; break; | |
1768 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1769 | case DT_RELA: name = "RELA"; break; | |
1770 | case DT_RELASZ: name = "RELASZ"; break; | |
1771 | case DT_RELAENT: name = "RELAENT"; break; | |
1772 | case DT_STRSZ: name = "STRSZ"; break; | |
1773 | case DT_SYMENT: name = "SYMENT"; break; | |
1774 | case DT_INIT: name = "INIT"; break; | |
1775 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1776 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1777 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1778 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1779 | case DT_REL: name = "REL"; break; | |
1780 | case DT_RELSZ: name = "RELSZ"; break; | |
1781 | case DT_RELENT: name = "RELENT"; break; | |
1782 | case DT_PLTREL: name = "PLTREL"; break; | |
1783 | case DT_DEBUG: name = "DEBUG"; break; | |
1784 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1785 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1786 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1787 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1788 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1789 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1790 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1791 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1792 | case DT_FLAGS: name = "FLAGS"; break; |
1793 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1794 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1795 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1796 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1797 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1798 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1799 | case DT_FEATURE: name = "FEATURE"; break; | |
1800 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1801 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1802 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1803 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1804 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1805 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1806 | case DT_PLTPAD: name = "PLTPAD"; break; |
1807 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1808 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1809 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1810 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1811 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1812 | case DT_VERSYM: name = "VERSYM"; break; |
1813 | case DT_VERDEF: name = "VERDEF"; break; | |
1814 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1815 | case DT_VERNEED: name = "VERNEED"; break; | |
1816 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1817 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1818 | case DT_USED: name = "USED"; break; |
b34976b6 | 1819 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1820 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1821 | } |
1822 | ||
ad9563d6 | 1823 | fprintf (f, " %-20s ", name); |
252b5132 | 1824 | if (! stringp) |
a1f3c56e AN |
1825 | { |
1826 | fprintf (f, "0x"); | |
1827 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1828 | } | |
252b5132 RH |
1829 | else |
1830 | { | |
1831 | const char *string; | |
dc810e39 | 1832 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1833 | |
dc810e39 | 1834 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1835 | if (string == NULL) |
1836 | goto error_return; | |
1837 | fprintf (f, "%s", string); | |
1838 | } | |
1839 | fprintf (f, "\n"); | |
1840 | } | |
1841 | ||
1842 | free (dynbuf); | |
1843 | dynbuf = NULL; | |
1844 | } | |
1845 | ||
1846 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1847 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1848 | { | |
fc0e6df6 | 1849 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1850 | return FALSE; |
252b5132 RH |
1851 | } |
1852 | ||
1853 | if (elf_dynverdef (abfd) != 0) | |
1854 | { | |
1855 | Elf_Internal_Verdef *t; | |
1856 | ||
1857 | fprintf (f, _("\nVersion definitions:\n")); | |
1858 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1859 | { | |
1860 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1861 | t->vd_flags, t->vd_hash, |
1862 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1863 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1864 | { |
1865 | Elf_Internal_Verdaux *a; | |
1866 | ||
1867 | fprintf (f, "\t"); | |
1868 | for (a = t->vd_auxptr->vda_nextptr; | |
1869 | a != NULL; | |
1870 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1871 | fprintf (f, "%s ", |
1872 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1873 | fprintf (f, "\n"); |
1874 | } | |
1875 | } | |
1876 | } | |
1877 | ||
1878 | if (elf_dynverref (abfd) != 0) | |
1879 | { | |
1880 | Elf_Internal_Verneed *t; | |
1881 | ||
1882 | fprintf (f, _("\nVersion References:\n")); | |
1883 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1884 | { | |
1885 | Elf_Internal_Vernaux *a; | |
1886 | ||
d0fb9a8d JJ |
1887 | fprintf (f, _(" required from %s:\n"), |
1888 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1889 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1890 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1891 | a->vna_flags, a->vna_other, |
1892 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1893 | } |
1894 | } | |
1895 | ||
b34976b6 | 1896 | return TRUE; |
252b5132 RH |
1897 | |
1898 | error_return: | |
1899 | if (dynbuf != NULL) | |
1900 | free (dynbuf); | |
b34976b6 | 1901 | return FALSE; |
252b5132 RH |
1902 | } |
1903 | ||
bb4d2ac2 L |
1904 | /* Get version string. */ |
1905 | ||
1906 | const char * | |
60bb06bc L |
1907 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1908 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1909 | { |
1910 | const char *version_string = NULL; | |
1911 | if (elf_dynversym (abfd) != 0 | |
1912 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1913 | { | |
1914 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1915 | ||
1916 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1917 | vernum &= VERSYM_VERSION; | |
1918 | ||
1919 | if (vernum == 0) | |
1920 | version_string = ""; | |
1f6f5dba L |
1921 | else if (vernum == 1 |
1922 | && (vernum > elf_tdata (abfd)->cverdefs | |
1923 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1924 | == VER_FLG_BASE))) | |
bb4d2ac2 L |
1925 | version_string = "Base"; |
1926 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1927 | version_string = | |
1928 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1929 | else | |
1930 | { | |
1931 | Elf_Internal_Verneed *t; | |
1932 | ||
7a815dd5 | 1933 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1934 | for (t = elf_tdata (abfd)->verref; |
1935 | t != NULL; | |
1936 | t = t->vn_nextref) | |
1937 | { | |
1938 | Elf_Internal_Vernaux *a; | |
1939 | ||
1940 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1941 | { | |
1942 | if (a->vna_other == vernum) | |
1943 | { | |
1944 | version_string = a->vna_nodename; | |
1945 | break; | |
1946 | } | |
1947 | } | |
1948 | } | |
1949 | } | |
1950 | } | |
1951 | return version_string; | |
1952 | } | |
1953 | ||
252b5132 RH |
1954 | /* Display ELF-specific fields of a symbol. */ |
1955 | ||
1956 | void | |
217aa764 AM |
1957 | bfd_elf_print_symbol (bfd *abfd, |
1958 | void *filep, | |
1959 | asymbol *symbol, | |
1960 | bfd_print_symbol_type how) | |
252b5132 | 1961 | { |
a50b1753 | 1962 | FILE *file = (FILE *) filep; |
252b5132 RH |
1963 | switch (how) |
1964 | { | |
1965 | case bfd_print_symbol_name: | |
1966 | fprintf (file, "%s", symbol->name); | |
1967 | break; | |
1968 | case bfd_print_symbol_more: | |
1969 | fprintf (file, "elf "); | |
60b89a18 | 1970 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1971 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1972 | break; |
1973 | case bfd_print_symbol_all: | |
1974 | { | |
4e8a9624 AM |
1975 | const char *section_name; |
1976 | const char *name = NULL; | |
9c5bfbb7 | 1977 | const struct elf_backend_data *bed; |
7a13edea | 1978 | unsigned char st_other; |
dbb410c3 | 1979 | bfd_vma val; |
bb4d2ac2 L |
1980 | const char *version_string; |
1981 | bfd_boolean hidden; | |
c044fabd | 1982 | |
252b5132 | 1983 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1984 | |
1985 | bed = get_elf_backend_data (abfd); | |
1986 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1987 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1988 | |
1989 | if (name == NULL) | |
1990 | { | |
7ee38065 | 1991 | name = symbol->name; |
217aa764 | 1992 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1993 | } |
1994 | ||
252b5132 RH |
1995 | fprintf (file, " %s\t", section_name); |
1996 | /* Print the "other" value for a symbol. For common symbols, | |
1997 | we've already printed the size; now print the alignment. | |
1998 | For other symbols, we have no specified alignment, and | |
1999 | we've printed the address; now print the size. */ | |
dcf6c779 | 2000 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
2001 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
2002 | else | |
2003 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
2004 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
2005 | |
2006 | /* If we have version information, print it. */ | |
60bb06bc L |
2007 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2008 | symbol, | |
2009 | &hidden); | |
bb4d2ac2 | 2010 | if (version_string) |
252b5132 | 2011 | { |
bb4d2ac2 | 2012 | if (!hidden) |
252b5132 RH |
2013 | fprintf (file, " %-11s", version_string); |
2014 | else | |
2015 | { | |
2016 | int i; | |
2017 | ||
2018 | fprintf (file, " (%s)", version_string); | |
2019 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2020 | putc (' ', file); | |
2021 | } | |
2022 | } | |
2023 | ||
2024 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2025 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2026 | |
7a13edea NC |
2027 | switch (st_other) |
2028 | { | |
2029 | case 0: break; | |
2030 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2031 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2032 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2033 | default: | |
2034 | /* Some other non-defined flags are also present, so print | |
2035 | everything hex. */ | |
2036 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2037 | } | |
252b5132 | 2038 | |
587ff49e | 2039 | fprintf (file, " %s", name); |
252b5132 RH |
2040 | } |
2041 | break; | |
2042 | } | |
2043 | } | |
252b5132 RH |
2044 | \f |
2045 | /* ELF .o/exec file reading */ | |
2046 | ||
c044fabd | 2047 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2048 | |
b34976b6 | 2049 | bfd_boolean |
217aa764 | 2050 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2051 | { |
4fbb74a6 AM |
2052 | Elf_Internal_Shdr *hdr; |
2053 | Elf_Internal_Ehdr *ehdr; | |
2054 | const struct elf_backend_data *bed; | |
90937f86 | 2055 | const char *name; |
bf67003b NC |
2056 | bfd_boolean ret = TRUE; |
2057 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2058 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2059 | static unsigned int nesting = 0; |
252b5132 | 2060 | |
4fbb74a6 AM |
2061 | if (shindex >= elf_numsections (abfd)) |
2062 | return FALSE; | |
2063 | ||
bf67003b NC |
2064 | if (++ nesting > 3) |
2065 | { | |
2066 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2067 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2068 | loop. Detect this here, by refusing to load a section that we are |
2069 | already in the process of loading. We only trigger this test if | |
2070 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2071 | can expect to recurse at least once. |
2072 | ||
2073 | FIXME: It would be better if this array was attached to the bfd, | |
2074 | rather than being held in a static pointer. */ | |
2075 | ||
2076 | if (sections_being_created_abfd != abfd) | |
2077 | sections_being_created = NULL; | |
bf67003b NC |
2078 | if (sections_being_created == NULL) |
2079 | { | |
bf67003b | 2080 | sections_being_created = (bfd_boolean *) |
7a6e0d89 | 2081 | bfd_zalloc2 (abfd, elf_numsections (abfd), sizeof (bfd_boolean)); |
5a4b0ccc | 2082 | sections_being_created_abfd = abfd; |
bf67003b NC |
2083 | } |
2084 | if (sections_being_created [shindex]) | |
2085 | { | |
4eca0228 | 2086 | _bfd_error_handler |
871b3ab2 | 2087 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2088 | return FALSE; |
2089 | } | |
2090 | sections_being_created [shindex] = TRUE; | |
2091 | } | |
2092 | ||
4fbb74a6 AM |
2093 | hdr = elf_elfsections (abfd)[shindex]; |
2094 | ehdr = elf_elfheader (abfd); | |
2095 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2096 | hdr->sh_name); |
933d961a | 2097 | if (name == NULL) |
bf67003b | 2098 | goto fail; |
252b5132 | 2099 | |
4fbb74a6 | 2100 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2101 | switch (hdr->sh_type) |
2102 | { | |
2103 | case SHT_NULL: | |
2104 | /* Inactive section. Throw it away. */ | |
bf67003b | 2105 | goto success; |
252b5132 | 2106 | |
bf67003b NC |
2107 | case SHT_PROGBITS: /* Normal section with contents. */ |
2108 | case SHT_NOBITS: /* .bss section. */ | |
2109 | case SHT_HASH: /* .hash section. */ | |
2110 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2111 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2112 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2113 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2114 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2115 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2116 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2117 | goto success; | |
252b5132 | 2118 | |
797fc050 | 2119 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2120 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2121 | goto fail; |
2122 | ||
cfcac11d NC |
2123 | if (hdr->sh_link > elf_numsections (abfd)) |
2124 | { | |
caa83f8b | 2125 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2126 | field set to SHN_BEFORE or SHN_AFTER. */ |
2127 | switch (bfd_get_arch (abfd)) | |
2128 | { | |
caa83f8b | 2129 | case bfd_arch_i386: |
cfcac11d NC |
2130 | case bfd_arch_sparc: |
2131 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2132 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2133 | break; | |
2134 | /* Otherwise fall through. */ | |
2135 | default: | |
bf67003b | 2136 | goto fail; |
cfcac11d NC |
2137 | } |
2138 | } | |
2139 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2140 | goto fail; |
cfcac11d | 2141 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2142 | { |
2143 | Elf_Internal_Shdr *dynsymhdr; | |
2144 | ||
2145 | /* The shared libraries distributed with hpux11 have a bogus | |
2146 | sh_link field for the ".dynamic" section. Find the | |
2147 | string table for the ".dynsym" section instead. */ | |
2148 | if (elf_dynsymtab (abfd) != 0) | |
2149 | { | |
2150 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2151 | hdr->sh_link = dynsymhdr->sh_link; | |
2152 | } | |
2153 | else | |
2154 | { | |
2155 | unsigned int i, num_sec; | |
2156 | ||
2157 | num_sec = elf_numsections (abfd); | |
2158 | for (i = 1; i < num_sec; i++) | |
2159 | { | |
2160 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2161 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2162 | { | |
2163 | hdr->sh_link = dynsymhdr->sh_link; | |
2164 | break; | |
2165 | } | |
2166 | } | |
2167 | } | |
2168 | } | |
bf67003b | 2169 | goto success; |
797fc050 | 2170 | |
bf67003b | 2171 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2172 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2173 | goto success; |
252b5132 | 2174 | |
a50b2160 | 2175 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2176 | goto fail; |
2177 | ||
3337c1e5 | 2178 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2179 | { |
2180 | if (hdr->sh_size != 0) | |
bf67003b | 2181 | goto fail; |
eee3b786 AM |
2182 | /* Some assemblers erroneously set sh_info to one with a |
2183 | zero sh_size. ld sees this as a global symbol count | |
2184 | of (unsigned) -1. Fix it here. */ | |
2185 | hdr->sh_info = 0; | |
bf67003b | 2186 | goto success; |
eee3b786 | 2187 | } |
bf67003b | 2188 | |
16ad13ec NC |
2189 | /* PR 18854: A binary might contain more than one symbol table. |
2190 | Unusual, but possible. Warn, but continue. */ | |
2191 | if (elf_onesymtab (abfd) != 0) | |
2192 | { | |
4eca0228 | 2193 | _bfd_error_handler |
695344c0 | 2194 | /* xgettext:c-format */ |
871b3ab2 | 2195 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2196 | " - ignoring the table in section %u"), |
16ad13ec NC |
2197 | abfd, shindex); |
2198 | goto success; | |
2199 | } | |
252b5132 | 2200 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2201 | elf_symtab_hdr (abfd) = *hdr; |
2202 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2203 | abfd->flags |= HAS_SYMS; |
2204 | ||
2205 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2206 | SHF_ALLOC is set, and this is a shared object, then we also |
2207 | treat this section as a BFD section. We can not base the | |
2208 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2209 | set in a relocatable object file, which would confuse the | |
2210 | linker. */ | |
252b5132 RH |
2211 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2212 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2213 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2214 | shindex)) | |
bf67003b | 2215 | goto fail; |
252b5132 | 2216 | |
1b3a8575 AM |
2217 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2218 | can't read symbols without that section loaded as well. It | |
2219 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2220 | { |
2221 | elf_section_list * entry; | |
2222 | unsigned int i, num_sec; | |
1b3a8575 | 2223 | |
6a40cf0c NC |
2224 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2225 | if (entry->hdr.sh_link == shindex) | |
2226 | goto success; | |
2227 | ||
2228 | num_sec = elf_numsections (abfd); | |
2229 | for (i = shindex + 1; i < num_sec; i++) | |
2230 | { | |
2231 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2232 | ||
2233 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2234 | && hdr2->sh_link == shindex) | |
2235 | break; | |
2236 | } | |
2237 | ||
2238 | if (i == num_sec) | |
2239 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2240 | { |
2241 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2242 | |
1b3a8575 AM |
2243 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2244 | && hdr2->sh_link == shindex) | |
2245 | break; | |
2246 | } | |
6a40cf0c NC |
2247 | |
2248 | if (i != shindex) | |
2249 | ret = bfd_section_from_shdr (abfd, i); | |
2250 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2251 | goto success; | |
2252 | } | |
252b5132 | 2253 | |
bf67003b | 2254 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2255 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2256 | goto success; |
252b5132 | 2257 | |
a50b2160 | 2258 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2259 | goto fail; |
2260 | ||
eee3b786 AM |
2261 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2262 | { | |
2263 | if (hdr->sh_size != 0) | |
bf67003b NC |
2264 | goto fail; |
2265 | ||
eee3b786 AM |
2266 | /* Some linkers erroneously set sh_info to one with a |
2267 | zero sh_size. ld sees this as a global symbol count | |
2268 | of (unsigned) -1. Fix it here. */ | |
2269 | hdr->sh_info = 0; | |
bf67003b | 2270 | goto success; |
eee3b786 | 2271 | } |
bf67003b | 2272 | |
16ad13ec NC |
2273 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2274 | Unusual, but possible. Warn, but continue. */ | |
2275 | if (elf_dynsymtab (abfd) != 0) | |
2276 | { | |
4eca0228 | 2277 | _bfd_error_handler |
695344c0 | 2278 | /* xgettext:c-format */ |
871b3ab2 | 2279 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2280 | " - ignoring the table in section %u"), |
16ad13ec NC |
2281 | abfd, shindex); |
2282 | goto success; | |
2283 | } | |
252b5132 RH |
2284 | elf_dynsymtab (abfd) = shindex; |
2285 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2286 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2287 | abfd->flags |= HAS_SYMS; | |
2288 | ||
2289 | /* Besides being a symbol table, we also treat this as a regular | |
2290 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2291 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2292 | goto success; | |
252b5132 | 2293 | |
bf67003b | 2294 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2295 | { |
2296 | elf_section_list * entry; | |
9ad5cbcf | 2297 | |
6a40cf0c NC |
2298 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2299 | if (entry->ndx == shindex) | |
2300 | goto success; | |
07d6d2b8 | 2301 | |
7a6e0d89 | 2302 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2303 | if (entry == NULL) |
2304 | goto fail; | |
2305 | entry->ndx = shindex; | |
2306 | entry->hdr = * hdr; | |
2307 | entry->next = elf_symtab_shndx_list (abfd); | |
2308 | elf_symtab_shndx_list (abfd) = entry; | |
2309 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2310 | goto success; | |
2311 | } | |
9ad5cbcf | 2312 | |
bf67003b | 2313 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2314 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2315 | goto success; |
2316 | ||
252b5132 RH |
2317 | if (ehdr->e_shstrndx == shindex) |
2318 | { | |
2319 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2320 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2321 | goto success; |
252b5132 | 2322 | } |
bf67003b | 2323 | |
1b3a8575 AM |
2324 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2325 | { | |
2326 | symtab_strtab: | |
2327 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2328 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2329 | goto success; |
1b3a8575 | 2330 | } |
bf67003b | 2331 | |
1b3a8575 AM |
2332 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2333 | { | |
2334 | dynsymtab_strtab: | |
2335 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2336 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2337 | elf_elfsections (abfd)[shindex] = hdr; | |
2338 | /* We also treat this as a regular section, so that objcopy | |
2339 | can handle it. */ | |
bf67003b NC |
2340 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2341 | shindex); | |
2342 | goto success; | |
1b3a8575 | 2343 | } |
252b5132 | 2344 | |
1b3a8575 AM |
2345 | /* If the string table isn't one of the above, then treat it as a |
2346 | regular section. We need to scan all the headers to be sure, | |
2347 | just in case this strtab section appeared before the above. */ | |
2348 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2349 | { | |
2350 | unsigned int i, num_sec; | |
252b5132 | 2351 | |
1b3a8575 AM |
2352 | num_sec = elf_numsections (abfd); |
2353 | for (i = 1; i < num_sec; i++) | |
2354 | { | |
2355 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2356 | if (hdr2->sh_link == shindex) | |
2357 | { | |
933d961a JJ |
2358 | /* Prevent endless recursion on broken objects. */ |
2359 | if (i == shindex) | |
bf67003b | 2360 | goto fail; |
1b3a8575 | 2361 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2362 | goto fail; |
1b3a8575 AM |
2363 | if (elf_onesymtab (abfd) == i) |
2364 | goto symtab_strtab; | |
2365 | if (elf_dynsymtab (abfd) == i) | |
2366 | goto dynsymtab_strtab; | |
2367 | } | |
2368 | } | |
2369 | } | |
bf67003b NC |
2370 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2371 | goto success; | |
252b5132 RH |
2372 | |
2373 | case SHT_REL: | |
2374 | case SHT_RELA: | |
2375 | /* *These* do a lot of work -- but build no sections! */ | |
2376 | { | |
2377 | asection *target_sect; | |
d4730f92 | 2378 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2379 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2380 | struct bfd_elf_section_data *esdt; |
252b5132 | 2381 | |
aa2ca951 JJ |
2382 | if (hdr->sh_entsize |
2383 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2384 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2385 | goto fail; |
a50b2160 | 2386 | |
03ae5f59 | 2387 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2388 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2389 | { |
4eca0228 | 2390 | _bfd_error_handler |
695344c0 | 2391 | /* xgettext:c-format */ |
871b3ab2 | 2392 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2393 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2394 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2395 | shindex); | |
2396 | goto success; | |
03ae5f59 ILT |
2397 | } |
2398 | ||
252b5132 RH |
2399 | /* For some incomprehensible reason Oracle distributes |
2400 | libraries for Solaris in which some of the objects have | |
2401 | bogus sh_link fields. It would be nice if we could just | |
2402 | reject them, but, unfortunately, some people need to use | |
2403 | them. We scan through the section headers; if we find only | |
2404 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2405 | to it. I hope this doesn't break anything. |
2406 | ||
2407 | Don't do it on executable nor shared library. */ | |
2408 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2409 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2410 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2411 | { | |
9ad5cbcf | 2412 | unsigned int scan; |
252b5132 RH |
2413 | int found; |
2414 | ||
2415 | found = 0; | |
9ad5cbcf | 2416 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2417 | { |
2418 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2419 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2420 | { | |
2421 | if (found != 0) | |
2422 | { | |
2423 | found = 0; | |
2424 | break; | |
2425 | } | |
2426 | found = scan; | |
2427 | } | |
2428 | } | |
2429 | if (found != 0) | |
2430 | hdr->sh_link = found; | |
2431 | } | |
2432 | ||
2433 | /* Get the symbol table. */ | |
1b3a8575 AM |
2434 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2435 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2436 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2437 | goto fail; |
252b5132 | 2438 | |
a4bcd733 AM |
2439 | /* If this is an alloc section in an executable or shared |
2440 | library, or the reloc section does not use the main symbol | |
2441 | table we don't treat it as a reloc section. BFD can't | |
2442 | adequately represent such a section, so at least for now, | |
2443 | we don't try. We just present it as a normal section. We | |
2444 | also can't use it as a reloc section if it points to the | |
2445 | null section, an invalid section, another reloc section, or | |
2446 | its sh_link points to the null section. */ | |
2447 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2448 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2449 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2450 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2451 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2452 | || hdr->sh_info >= num_sec |
2453 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2454 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2455 | { |
2456 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2457 | shindex); | |
2458 | goto success; | |
2459 | } | |
252b5132 RH |
2460 | |
2461 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2462 | goto fail; |
2463 | ||
252b5132 RH |
2464 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2465 | if (target_sect == NULL) | |
bf67003b | 2466 | goto fail; |
252b5132 | 2467 | |
d4730f92 BS |
2468 | esdt = elf_section_data (target_sect); |
2469 | if (hdr->sh_type == SHT_RELA) | |
2470 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2471 | else |
d4730f92 BS |
2472 | p_hdr = &esdt->rel.hdr; |
2473 | ||
a7ba3896 NC |
2474 | /* PR 17512: file: 0b4f81b7. |
2475 | Also see PR 24456, for a file which deliberately has two reloc | |
2476 | sections. */ | |
06614111 | 2477 | if (*p_hdr != NULL) |
a7ba3896 NC |
2478 | { |
2479 | _bfd_error_handler | |
2480 | /* xgettext:c-format */ | |
2481 | (_("%pB: warning: multiple relocation sections for section %pA \ | |
2482 | found - ignoring all but the first"), | |
2483 | abfd, target_sect); | |
2484 | goto success; | |
2485 | } | |
ef53be89 | 2486 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2487 | if (hdr2 == NULL) |
bf67003b | 2488 | goto fail; |
252b5132 | 2489 | *hdr2 = *hdr; |
d4730f92 | 2490 | *p_hdr = hdr2; |
252b5132 | 2491 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2492 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2493 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2494 | target_sect->flags |= SEC_RELOC; |
2495 | target_sect->relocation = NULL; | |
2496 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2497 | /* In the section to which the relocations apply, mark whether |
2498 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2499 | if (hdr->sh_size != 0) |
d4730f92 BS |
2500 | { |
2501 | if (hdr->sh_type == SHT_RELA) | |
2502 | target_sect->use_rela_p = 1; | |
2503 | } | |
252b5132 | 2504 | abfd->flags |= HAS_RELOC; |
bf67003b | 2505 | goto success; |
252b5132 | 2506 | } |
252b5132 RH |
2507 | |
2508 | case SHT_GNU_verdef: | |
2509 | elf_dynverdef (abfd) = shindex; | |
2510 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2511 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2512 | goto success; | |
252b5132 RH |
2513 | |
2514 | case SHT_GNU_versym: | |
a50b2160 | 2515 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2516 | goto fail; |
2517 | ||
252b5132 RH |
2518 | elf_dynversym (abfd) = shindex; |
2519 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2520 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2521 | goto success; | |
252b5132 RH |
2522 | |
2523 | case SHT_GNU_verneed: | |
2524 | elf_dynverref (abfd) = shindex; | |
2525 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2526 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2527 | goto success; | |
252b5132 RH |
2528 | |
2529 | case SHT_SHLIB: | |
bf67003b | 2530 | goto success; |
252b5132 | 2531 | |
dbb410c3 | 2532 | case SHT_GROUP: |
44534af3 | 2533 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2534 | goto fail; |
2535 | ||
6dc132d9 | 2536 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2537 | goto fail; |
2538 | ||
bf67003b | 2539 | goto success; |
dbb410c3 | 2540 | |
252b5132 | 2541 | default: |
104d59d1 JM |
2542 | /* Possibly an attributes section. */ |
2543 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2544 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2545 | { | |
2546 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2547 | goto fail; |
104d59d1 | 2548 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2549 | goto success; |
104d59d1 JM |
2550 | } |
2551 | ||
252b5132 | 2552 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2553 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2554 | goto success; |
3eb70a79 L |
2555 | |
2556 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2557 | { | |
2558 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2559 | /* FIXME: How to properly handle allocated section reserved | |
2560 | for applications? */ | |
4eca0228 | 2561 | _bfd_error_handler |
695344c0 | 2562 | /* xgettext:c-format */ |
871b3ab2 | 2563 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2564 | abfd, hdr->sh_type, name); |
3eb70a79 | 2565 | else |
bf67003b NC |
2566 | { |
2567 | /* Allow sections reserved for applications. */ | |
2568 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2569 | shindex); | |
2570 | goto success; | |
2571 | } | |
3eb70a79 L |
2572 | } |
2573 | else if (hdr->sh_type >= SHT_LOPROC | |
2574 | && hdr->sh_type <= SHT_HIPROC) | |
2575 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2576 | _bfd_error_handler |
695344c0 | 2577 | /* xgettext:c-format */ |
871b3ab2 | 2578 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2579 | abfd, hdr->sh_type, name); |
3eb70a79 | 2580 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2581 | { |
2582 | /* Unrecognised OS-specific sections. */ | |
2583 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2584 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2585 | required to correctly process the section and the file should |
ff15b240 | 2586 | be rejected with an error message. */ |
4eca0228 | 2587 | _bfd_error_handler |
695344c0 | 2588 | /* xgettext:c-format */ |
871b3ab2 | 2589 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2590 | abfd, hdr->sh_type, name); |
ff15b240 | 2591 | else |
bf67003b NC |
2592 | { |
2593 | /* Otherwise it should be processed. */ | |
2594 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2595 | goto success; | |
2596 | } | |
ff15b240 | 2597 | } |
3eb70a79 L |
2598 | else |
2599 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2600 | _bfd_error_handler |
695344c0 | 2601 | /* xgettext:c-format */ |
871b3ab2 | 2602 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2603 | abfd, hdr->sh_type, name); |
3eb70a79 | 2604 | |
bf67003b | 2605 | goto fail; |
252b5132 RH |
2606 | } |
2607 | ||
bf67003b NC |
2608 | fail: |
2609 | ret = FALSE; | |
2610 | success: | |
e5b470e2 | 2611 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2612 | sections_being_created [shindex] = FALSE; |
2613 | if (-- nesting == 0) | |
5a4b0ccc NC |
2614 | { |
2615 | sections_being_created = NULL; | |
2616 | sections_being_created_abfd = abfd; | |
2617 | } | |
bf67003b | 2618 | return ret; |
252b5132 RH |
2619 | } |
2620 | ||
87d72d41 | 2621 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2622 | |
87d72d41 AM |
2623 | Elf_Internal_Sym * |
2624 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2625 | bfd *abfd, | |
2626 | unsigned long r_symndx) | |
ec338859 | 2627 | { |
ec338859 AM |
2628 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2629 | ||
a5d1b3b5 AM |
2630 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2631 | { | |
2632 | Elf_Internal_Shdr *symtab_hdr; | |
2633 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2634 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2635 | |
a5d1b3b5 AM |
2636 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2637 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2638 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2639 | return NULL; |
9ad5cbcf | 2640 | |
a5d1b3b5 AM |
2641 | if (cache->abfd != abfd) |
2642 | { | |
2643 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2644 | cache->abfd = abfd; | |
2645 | } | |
2646 | cache->indx[ent] = r_symndx; | |
ec338859 | 2647 | } |
a5d1b3b5 | 2648 | |
87d72d41 | 2649 | return &cache->sym[ent]; |
ec338859 AM |
2650 | } |
2651 | ||
252b5132 RH |
2652 | /* Given an ELF section number, retrieve the corresponding BFD |
2653 | section. */ | |
2654 | ||
2655 | asection * | |
91d6fa6a | 2656 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2657 | { |
91d6fa6a | 2658 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2659 | return NULL; |
91d6fa6a | 2660 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2661 | } |
2662 | ||
b35d266b | 2663 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2664 | { |
0112cd26 | 2665 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2666 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2667 | }; |
2668 | ||
b35d266b | 2669 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2670 | { |
0112cd26 | 2671 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
1ff6de03 | 2672 | { STRING_COMMA_LEN (".ctf"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2673 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2674 | }; |
2675 | ||
b35d266b | 2676 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2677 | { |
07d6d2b8 AM |
2678 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2679 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2680 | /* There are more DWARF sections than these, but they needn't be added here |
2681 | unless you have to cope with broken compilers that don't emit section | |
2682 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2683 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2684 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2685 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2686 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2687 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2688 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2689 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2690 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2691 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2692 | }; |
2693 | ||
b35d266b | 2694 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2695 | { |
07d6d2b8 | 2696 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2697 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2698 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2699 | }; |
2700 | ||
b35d266b | 2701 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2702 | { |
0112cd26 | 2703 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2704 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2705 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2706 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2707 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2708 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2709 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2710 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2711 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2712 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2713 | }; |
2714 | ||
b35d266b | 2715 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2716 | { |
07d6d2b8 AM |
2717 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2718 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2719 | }; |
2720 | ||
b35d266b | 2721 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2722 | { |
07d6d2b8 | 2723 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2724 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2725 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2726 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2727 | }; |
2728 | ||
b35d266b | 2729 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2730 | { |
0112cd26 | 2731 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2732 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2733 | }; |
2734 | ||
b35d266b | 2735 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2736 | { |
0112cd26 | 2737 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2738 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2739 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2740 | }; |
2741 | ||
b35d266b | 2742 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2743 | { |
6f9dbcd4 | 2744 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2745 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2746 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2747 | }; |
2748 | ||
b35d266b | 2749 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2750 | { |
0112cd26 NC |
2751 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2752 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2753 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2754 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2755 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2756 | }; |
2757 | ||
b35d266b | 2758 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2759 | { |
0112cd26 NC |
2760 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2761 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2762 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2763 | /* See struct bfd_elf_special_section declaration for the semantics of |
2764 | this special case where .prefix_length != strlen (.prefix). */ | |
2765 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2766 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2767 | }; |
2768 | ||
b35d266b | 2769 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2770 | { |
07d6d2b8 AM |
2771 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2772 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2773 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2774 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2775 | }; |
2776 | ||
1b315056 CS |
2777 | static const struct bfd_elf_special_section special_sections_z[] = |
2778 | { | |
07d6d2b8 AM |
2779 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2780 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2781 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2782 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2783 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2784 | }; |
2785 | ||
e4c93b56 | 2786 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2787 | { |
7f4d3958 | 2788 | special_sections_b, /* 'b' */ |
98ece1b3 | 2789 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2790 | special_sections_d, /* 'd' */ |
2791 | NULL, /* 'e' */ | |
2792 | special_sections_f, /* 'f' */ | |
2793 | special_sections_g, /* 'g' */ | |
2794 | special_sections_h, /* 'h' */ | |
2795 | special_sections_i, /* 'i' */ | |
2796 | NULL, /* 'j' */ | |
2797 | NULL, /* 'k' */ | |
2798 | special_sections_l, /* 'l' */ | |
2799 | NULL, /* 'm' */ | |
2800 | special_sections_n, /* 'n' */ | |
2801 | NULL, /* 'o' */ | |
2802 | special_sections_p, /* 'p' */ | |
2803 | NULL, /* 'q' */ | |
2804 | special_sections_r, /* 'r' */ | |
2805 | special_sections_s, /* 's' */ | |
2806 | special_sections_t, /* 't' */ | |
1b315056 CS |
2807 | NULL, /* 'u' */ |
2808 | NULL, /* 'v' */ | |
2809 | NULL, /* 'w' */ | |
2810 | NULL, /* 'x' */ | |
2811 | NULL, /* 'y' */ | |
2812 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2813 | }; |
2814 | ||
551b43fd AM |
2815 | const struct bfd_elf_special_section * |
2816 | _bfd_elf_get_special_section (const char *name, | |
2817 | const struct bfd_elf_special_section *spec, | |
2818 | unsigned int rela) | |
2f89ff8d L |
2819 | { |
2820 | int i; | |
7f4d3958 | 2821 | int len; |
7f4d3958 | 2822 | |
551b43fd | 2823 | len = strlen (name); |
7f4d3958 | 2824 | |
551b43fd | 2825 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2826 | { |
2827 | int suffix_len; | |
551b43fd | 2828 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2829 | |
2830 | if (len < prefix_len) | |
2831 | continue; | |
551b43fd | 2832 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2833 | continue; |
2834 | ||
551b43fd | 2835 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2836 | if (suffix_len <= 0) |
2837 | { | |
2838 | if (name[prefix_len] != 0) | |
2839 | { | |
2840 | if (suffix_len == 0) | |
2841 | continue; | |
2842 | if (name[prefix_len] != '.' | |
2843 | && (suffix_len == -2 | |
551b43fd | 2844 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2845 | continue; |
2846 | } | |
2847 | } | |
2848 | else | |
2849 | { | |
2850 | if (len < prefix_len + suffix_len) | |
2851 | continue; | |
2852 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2853 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2854 | suffix_len) != 0) |
2855 | continue; | |
2856 | } | |
551b43fd | 2857 | return &spec[i]; |
7dcb9820 | 2858 | } |
2f89ff8d L |
2859 | |
2860 | return NULL; | |
2861 | } | |
2862 | ||
7dcb9820 | 2863 | const struct bfd_elf_special_section * |
29ef7005 | 2864 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2865 | { |
551b43fd AM |
2866 | int i; |
2867 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2868 | const struct elf_backend_data *bed; |
2f89ff8d L |
2869 | |
2870 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2871 | if (sec->name == NULL) |
2872 | return NULL; | |
2f89ff8d | 2873 | |
29ef7005 L |
2874 | bed = get_elf_backend_data (abfd); |
2875 | spec = bed->special_sections; | |
2876 | if (spec) | |
2877 | { | |
2878 | spec = _bfd_elf_get_special_section (sec->name, | |
2879 | bed->special_sections, | |
2880 | sec->use_rela_p); | |
2881 | if (spec != NULL) | |
2882 | return spec; | |
2883 | } | |
2884 | ||
551b43fd AM |
2885 | if (sec->name[0] != '.') |
2886 | return NULL; | |
2f89ff8d | 2887 | |
551b43fd | 2888 | i = sec->name[1] - 'b'; |
1b315056 | 2889 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2890 | return NULL; |
2891 | ||
2892 | spec = special_sections[i]; | |
2f89ff8d | 2893 | |
551b43fd AM |
2894 | if (spec == NULL) |
2895 | return NULL; | |
2896 | ||
2897 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2898 | } |
2899 | ||
b34976b6 | 2900 | bfd_boolean |
217aa764 | 2901 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2902 | { |
2903 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2904 | const struct elf_backend_data *bed; |
7dcb9820 | 2905 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2906 | |
f0abc2a1 AM |
2907 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2908 | if (sdata == NULL) | |
2909 | { | |
a50b1753 | 2910 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2911 | sizeof (*sdata)); |
f0abc2a1 AM |
2912 | if (sdata == NULL) |
2913 | return FALSE; | |
217aa764 | 2914 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2915 | } |
bf572ba0 | 2916 | |
551b43fd AM |
2917 | /* Indicate whether or not this section should use RELA relocations. */ |
2918 | bed = get_elf_backend_data (abfd); | |
2919 | sec->use_rela_p = bed->default_use_rela_p; | |
2920 | ||
e843e0f8 L |
2921 | /* When we read a file, we don't need to set ELF section type and |
2922 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2923 | anyway. We will set ELF section type and flags for all linker | |
2924 | created sections. If user specifies BFD section flags, we will | |
2925 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2926 | elf_fake_sections. Special handling for .init_array/.fini_array |
2927 | output sections since they may contain .ctors/.dtors input | |
2928 | sections. We don't want _bfd_elf_init_private_section_data to | |
2929 | copy ELF section type from .ctors/.dtors input sections. */ | |
2930 | if (abfd->direction != read_direction | |
3496cb2a | 2931 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2932 | { |
551b43fd | 2933 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2934 | if (ssect != NULL |
2935 | && (!sec->flags | |
2936 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2937 | || ssect->type == SHT_INIT_ARRAY | |
2938 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2939 | { |
2940 | elf_section_type (sec) = ssect->type; | |
2941 | elf_section_flags (sec) = ssect->attr; | |
2942 | } | |
2f89ff8d L |
2943 | } |
2944 | ||
f592407e | 2945 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2946 | } |
2947 | ||
2948 | /* Create a new bfd section from an ELF program header. | |
2949 | ||
2950 | Since program segments have no names, we generate a synthetic name | |
2951 | of the form segment<NUM>, where NUM is generally the index in the | |
2952 | program header table. For segments that are split (see below) we | |
2953 | generate the names segment<NUM>a and segment<NUM>b. | |
2954 | ||
2955 | Note that some program segments may have a file size that is different than | |
2956 | (less than) the memory size. All this means is that at execution the | |
2957 | system must allocate the amount of memory specified by the memory size, | |
2958 | but only initialize it with the first "file size" bytes read from the | |
2959 | file. This would occur for example, with program segments consisting | |
2960 | of combined data+bss. | |
2961 | ||
2962 | To handle the above situation, this routine generates TWO bfd sections | |
2963 | for the single program segment. The first has the length specified by | |
2964 | the file size of the segment, and the second has the length specified | |
2965 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2966 | into its initialized and uninitialized parts. |
252b5132 RH |
2967 | |
2968 | */ | |
2969 | ||
b34976b6 | 2970 | bfd_boolean |
217aa764 AM |
2971 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2972 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2973 | int hdr_index, |
a50b1753 | 2974 | const char *type_name) |
252b5132 RH |
2975 | { |
2976 | asection *newsect; | |
2977 | char *name; | |
2978 | char namebuf[64]; | |
d4c88bbb | 2979 | size_t len; |
252b5132 RH |
2980 | int split; |
2981 | ||
2982 | split = ((hdr->p_memsz > 0) | |
2983 | && (hdr->p_filesz > 0) | |
2984 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2985 | |
2986 | if (hdr->p_filesz > 0) | |
252b5132 | 2987 | { |
91d6fa6a | 2988 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2989 | len = strlen (namebuf) + 1; |
a50b1753 | 2990 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2991 | if (!name) |
2992 | return FALSE; | |
2993 | memcpy (name, namebuf, len); | |
2994 | newsect = bfd_make_section (abfd, name); | |
2995 | if (newsect == NULL) | |
2996 | return FALSE; | |
2997 | newsect->vma = hdr->p_vaddr; | |
2998 | newsect->lma = hdr->p_paddr; | |
2999 | newsect->size = hdr->p_filesz; | |
3000 | newsect->filepos = hdr->p_offset; | |
3001 | newsect->flags |= SEC_HAS_CONTENTS; | |
3002 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
3003 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 3004 | { |
d5191d0c AM |
3005 | newsect->flags |= SEC_ALLOC; |
3006 | newsect->flags |= SEC_LOAD; | |
3007 | if (hdr->p_flags & PF_X) | |
3008 | { | |
3009 | /* FIXME: all we known is that it has execute PERMISSION, | |
3010 | may be data. */ | |
3011 | newsect->flags |= SEC_CODE; | |
3012 | } | |
3013 | } | |
3014 | if (!(hdr->p_flags & PF_W)) | |
3015 | { | |
3016 | newsect->flags |= SEC_READONLY; | |
252b5132 | 3017 | } |
252b5132 RH |
3018 | } |
3019 | ||
d5191d0c | 3020 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 3021 | { |
d5191d0c AM |
3022 | bfd_vma align; |
3023 | ||
91d6fa6a | 3024 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 3025 | len = strlen (namebuf) + 1; |
a50b1753 | 3026 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3027 | if (!name) |
b34976b6 | 3028 | return FALSE; |
d4c88bbb | 3029 | memcpy (name, namebuf, len); |
252b5132 RH |
3030 | newsect = bfd_make_section (abfd, name); |
3031 | if (newsect == NULL) | |
b34976b6 | 3032 | return FALSE; |
252b5132 RH |
3033 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
3034 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 3035 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3036 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3037 | align = newsect->vma & -newsect->vma; | |
3038 | if (align == 0 || align > hdr->p_align) | |
3039 | align = hdr->p_align; | |
3040 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3041 | if (hdr->p_type == PT_LOAD) |
3042 | { | |
d5191d0c AM |
3043 | /* Hack for gdb. Segments that have not been modified do |
3044 | not have their contents written to a core file, on the | |
3045 | assumption that a debugger can find the contents in the | |
3046 | executable. We flag this case by setting the fake | |
3047 | section size to zero. Note that "real" bss sections will | |
3048 | always have their contents dumped to the core file. */ | |
3049 | if (bfd_get_format (abfd) == bfd_core) | |
3050 | newsect->size = 0; | |
252b5132 RH |
3051 | newsect->flags |= SEC_ALLOC; |
3052 | if (hdr->p_flags & PF_X) | |
3053 | newsect->flags |= SEC_CODE; | |
3054 | } | |
3055 | if (!(hdr->p_flags & PF_W)) | |
3056 | newsect->flags |= SEC_READONLY; | |
3057 | } | |
3058 | ||
b34976b6 | 3059 | return TRUE; |
252b5132 RH |
3060 | } |
3061 | ||
864619bb KS |
3062 | static bfd_boolean |
3063 | _bfd_elf_core_find_build_id (bfd *templ, bfd_vma offset) | |
3064 | { | |
3065 | /* The return value is ignored. Build-ids are considered optional. */ | |
3066 | if (templ->xvec->flavour == bfd_target_elf_flavour) | |
3067 | return (*get_elf_backend_data (templ)->elf_backend_core_find_build_id) | |
3068 | (templ, offset); | |
3069 | return FALSE; | |
3070 | } | |
3071 | ||
b34976b6 | 3072 | bfd_boolean |
91d6fa6a | 3073 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3074 | { |
9c5bfbb7 | 3075 | const struct elf_backend_data *bed; |
20cfcaae NC |
3076 | |
3077 | switch (hdr->p_type) | |
3078 | { | |
3079 | case PT_NULL: | |
91d6fa6a | 3080 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3081 | |
3082 | case PT_LOAD: | |
864619bb KS |
3083 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load")) |
3084 | return FALSE; | |
3085 | if (bfd_get_format (abfd) == bfd_core && abfd->build_id == NULL) | |
3086 | _bfd_elf_core_find_build_id (abfd, hdr->p_offset); | |
3087 | return TRUE; | |
20cfcaae NC |
3088 | |
3089 | case PT_DYNAMIC: | |
91d6fa6a | 3090 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3091 | |
3092 | case PT_INTERP: | |
91d6fa6a | 3093 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3094 | |
3095 | case PT_NOTE: | |
91d6fa6a | 3096 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3097 | return FALSE; |
276da9b3 L |
3098 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3099 | hdr->p_align)) | |
b34976b6 AM |
3100 | return FALSE; |
3101 | return TRUE; | |
20cfcaae NC |
3102 | |
3103 | case PT_SHLIB: | |
91d6fa6a | 3104 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3105 | |
3106 | case PT_PHDR: | |
91d6fa6a | 3107 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3108 | |
811072d8 | 3109 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3110 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3111 | "eh_frame_hdr"); |
3112 | ||
2b05f1b7 | 3113 | case PT_GNU_STACK: |
91d6fa6a | 3114 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3115 | |
8c37241b | 3116 | case PT_GNU_RELRO: |
91d6fa6a | 3117 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3118 | |
20cfcaae | 3119 | default: |
8c1acd09 | 3120 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3121 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3122 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3123 | } |
3124 | } | |
3125 | ||
d4730f92 BS |
3126 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3127 | REL or RELA. */ | |
3128 | ||
3129 | Elf_Internal_Shdr * | |
3130 | _bfd_elf_single_rel_hdr (asection *sec) | |
3131 | { | |
3132 | if (elf_section_data (sec)->rel.hdr) | |
3133 | { | |
3134 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3135 | return elf_section_data (sec)->rel.hdr; | |
3136 | } | |
3137 | else | |
3138 | return elf_section_data (sec)->rela.hdr; | |
3139 | } | |
3140 | ||
3e19fb8f L |
3141 | static bfd_boolean |
3142 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3143 | Elf_Internal_Shdr *rel_hdr, | |
3144 | const char *sec_name, | |
3145 | bfd_boolean use_rela_p) | |
3146 | { | |
3147 | char *name = (char *) bfd_alloc (abfd, | |
3148 | sizeof ".rela" + strlen (sec_name)); | |
3149 | if (name == NULL) | |
3150 | return FALSE; | |
3151 | ||
3152 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3153 | rel_hdr->sh_name = | |
3154 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3155 | FALSE); | |
3156 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3157 | return FALSE; | |
3158 | ||
3159 | return TRUE; | |
3160 | } | |
3161 | ||
d4730f92 BS |
3162 | /* Allocate and initialize a section-header for a new reloc section, |
3163 | containing relocations against ASECT. It is stored in RELDATA. If | |
3164 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3165 | relocations. */ | |
23bc299b | 3166 | |
5d13b3b3 | 3167 | static bfd_boolean |
217aa764 | 3168 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3169 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3170 | const char *sec_name, |
3e19fb8f L |
3171 | bfd_boolean use_rela_p, |
3172 | bfd_boolean delay_st_name_p) | |
23bc299b | 3173 | { |
d4730f92 | 3174 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3175 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3176 | |
d4730f92 | 3177 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3178 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3179 | reldata->hdr = rel_hdr; |
23bc299b | 3180 | |
3e19fb8f L |
3181 | if (delay_st_name_p) |
3182 | rel_hdr->sh_name = (unsigned int) -1; | |
3183 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3184 | use_rela_p)) | |
b34976b6 | 3185 | return FALSE; |
23bc299b MM |
3186 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3187 | rel_hdr->sh_entsize = (use_rela_p | |
3188 | ? bed->s->sizeof_rela | |
3189 | : bed->s->sizeof_rel); | |
72de5009 | 3190 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3191 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3192 | rel_hdr->sh_addr = 0; |
3193 | rel_hdr->sh_size = 0; | |
3194 | rel_hdr->sh_offset = 0; | |
3195 | ||
b34976b6 | 3196 | return TRUE; |
23bc299b MM |
3197 | } |
3198 | ||
94be91de JB |
3199 | /* Return the default section type based on the passed in section flags. */ |
3200 | ||
3201 | int | |
3202 | bfd_elf_get_default_section_type (flagword flags) | |
3203 | { | |
0e41bebb | 3204 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3205 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3206 | return SHT_NOBITS; |
3207 | return SHT_PROGBITS; | |
3208 | } | |
3209 | ||
d4730f92 BS |
3210 | struct fake_section_arg |
3211 | { | |
3212 | struct bfd_link_info *link_info; | |
3213 | bfd_boolean failed; | |
3214 | }; | |
3215 | ||
252b5132 RH |
3216 | /* Set up an ELF internal section header for a section. */ |
3217 | ||
252b5132 | 3218 | static void |
d4730f92 | 3219 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3220 | { |
d4730f92 | 3221 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3222 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3223 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3224 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3225 | unsigned int sh_type; |
0ce398f1 | 3226 | const char *name = asect->name; |
3e19fb8f | 3227 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3228 | |
d4730f92 | 3229 | if (arg->failed) |
252b5132 RH |
3230 | { |
3231 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3232 | loop. */ |
252b5132 RH |
3233 | return; |
3234 | } | |
3235 | ||
d4730f92 | 3236 | this_hdr = &esd->this_hdr; |
252b5132 | 3237 | |
f6fe1ccd | 3238 | if (arg->link_info) |
0ce398f1 | 3239 | { |
f6fe1ccd L |
3240 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3241 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3242 | && (asect->flags & SEC_DEBUGGING) | |
3243 | && name[1] == 'd' | |
3244 | && name[6] == '_') | |
3245 | { | |
3246 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3247 | compressed. */ | |
3248 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3249 | |
dd905818 | 3250 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3251 | name to section name section after it is compressed in |
3252 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3253 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3254 | } |
3255 | } | |
3256 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3257 | { | |
3258 | /* objcopy: rename output DWARF debug section. */ | |
3259 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3260 | { | |
3261 | /* When we decompress or compress with SHF_COMPRESSED, | |
3262 | convert section name from .zdebug_* to .debug_* if | |
3263 | needed. */ | |
3264 | if (name[1] == 'z') | |
3265 | { | |
3266 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3267 | if (new_name == NULL) | |
3268 | { | |
3269 | arg->failed = TRUE; | |
3270 | return; | |
3271 | } | |
3272 | name = new_name; | |
3273 | } | |
3274 | } | |
3275 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3276 | { |
f6fe1ccd L |
3277 | /* PR binutils/18087: Compression does not always make a |
3278 | section smaller. So only rename the section when | |
3279 | compression has actually taken place. If input section | |
3280 | name is .zdebug_*, we should never compress it again. */ | |
3281 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3282 | if (new_name == NULL) |
3283 | { | |
3284 | arg->failed = TRUE; | |
3285 | return; | |
3286 | } | |
f6fe1ccd L |
3287 | BFD_ASSERT (name[1] != 'z'); |
3288 | name = new_name; | |
0ce398f1 L |
3289 | } |
3290 | } | |
3291 | ||
3e19fb8f L |
3292 | if (delay_st_name_p) |
3293 | this_hdr->sh_name = (unsigned int) -1; | |
3294 | else | |
252b5132 | 3295 | { |
3e19fb8f L |
3296 | this_hdr->sh_name |
3297 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3298 | name, FALSE); | |
3299 | if (this_hdr->sh_name == (unsigned int) -1) | |
3300 | { | |
3301 | arg->failed = TRUE; | |
3302 | return; | |
3303 | } | |
252b5132 RH |
3304 | } |
3305 | ||
a4d8e49b | 3306 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3307 | |
3308 | if ((asect->flags & SEC_ALLOC) != 0 | |
3309 | || asect->user_set_vma) | |
3310 | this_hdr->sh_addr = asect->vma; | |
3311 | else | |
3312 | this_hdr->sh_addr = 0; | |
3313 | ||
3314 | this_hdr->sh_offset = 0; | |
eea6121a | 3315 | this_hdr->sh_size = asect->size; |
252b5132 | 3316 | this_hdr->sh_link = 0; |
c86934ce NC |
3317 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3318 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3319 | { | |
4eca0228 | 3320 | _bfd_error_handler |
695344c0 | 3321 | /* xgettext:c-format */ |
9793eb77 | 3322 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3323 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3324 | arg->failed = TRUE; |
3325 | return; | |
3326 | } | |
72de5009 | 3327 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3328 | /* The sh_entsize and sh_info fields may have been set already by |
3329 | copy_private_section_data. */ | |
3330 | ||
3331 | this_hdr->bfd_section = asect; | |
3332 | this_hdr->contents = NULL; | |
3333 | ||
3cddba1e L |
3334 | /* If the section type is unspecified, we set it based on |
3335 | asect->flags. */ | |
98ece1b3 AM |
3336 | if ((asect->flags & SEC_GROUP) != 0) |
3337 | sh_type = SHT_GROUP; | |
98ece1b3 | 3338 | else |
94be91de | 3339 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3340 | |
3cddba1e | 3341 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3342 | this_hdr->sh_type = sh_type; |
3343 | else if (this_hdr->sh_type == SHT_NOBITS | |
3344 | && sh_type == SHT_PROGBITS | |
3345 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3346 | { |
98ece1b3 AM |
3347 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3348 | allow the link to proceed. This can happen when users link | |
3349 | non-bss input sections to bss output sections, or emit data | |
3350 | to a bss output section via a linker script. */ | |
4eca0228 | 3351 | _bfd_error_handler |
871b3ab2 | 3352 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3353 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3354 | } |
3355 | ||
2f89ff8d | 3356 | switch (this_hdr->sh_type) |
252b5132 | 3357 | { |
2f89ff8d | 3358 | default: |
2f89ff8d L |
3359 | break; |
3360 | ||
3361 | case SHT_STRTAB: | |
2f89ff8d L |
3362 | case SHT_NOTE: |
3363 | case SHT_NOBITS: | |
3364 | case SHT_PROGBITS: | |
3365 | break; | |
606851fb AM |
3366 | |
3367 | case SHT_INIT_ARRAY: | |
3368 | case SHT_FINI_ARRAY: | |
3369 | case SHT_PREINIT_ARRAY: | |
3370 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3371 | break; | |
2f89ff8d L |
3372 | |
3373 | case SHT_HASH: | |
c7ac6ff8 | 3374 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3375 | break; |
5de3bf90 | 3376 | |
2f89ff8d | 3377 | case SHT_DYNSYM: |
252b5132 | 3378 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3379 | break; |
3380 | ||
3381 | case SHT_DYNAMIC: | |
252b5132 | 3382 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3383 | break; |
3384 | ||
3385 | case SHT_RELA: | |
3386 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3387 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3388 | break; | |
3389 | ||
3390 | case SHT_REL: | |
3391 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3392 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3393 | break; | |
3394 | ||
3395 | case SHT_GNU_versym: | |
252b5132 | 3396 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3397 | break; |
3398 | ||
3399 | case SHT_GNU_verdef: | |
252b5132 RH |
3400 | this_hdr->sh_entsize = 0; |
3401 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3402 | cverdefs. The linker will set cverdefs, but sh_info will be |
3403 | zero. */ | |
252b5132 RH |
3404 | if (this_hdr->sh_info == 0) |
3405 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3406 | else | |
3407 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3408 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3409 | break; |
3410 | ||
3411 | case SHT_GNU_verneed: | |
252b5132 RH |
3412 | this_hdr->sh_entsize = 0; |
3413 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3414 | cverrefs. The linker will set cverrefs, but sh_info will be |
3415 | zero. */ | |
252b5132 RH |
3416 | if (this_hdr->sh_info == 0) |
3417 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3418 | else | |
3419 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3420 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3421 | break; |
3422 | ||
3423 | case SHT_GROUP: | |
1783205a | 3424 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3425 | break; |
fdc90cb4 JJ |
3426 | |
3427 | case SHT_GNU_HASH: | |
3428 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3429 | break; | |
dbb410c3 | 3430 | } |
252b5132 RH |
3431 | |
3432 | if ((asect->flags & SEC_ALLOC) != 0) | |
3433 | this_hdr->sh_flags |= SHF_ALLOC; | |
3434 | if ((asect->flags & SEC_READONLY) == 0) | |
3435 | this_hdr->sh_flags |= SHF_WRITE; | |
3436 | if ((asect->flags & SEC_CODE) != 0) | |
3437 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3438 | if ((asect->flags & SEC_MERGE) != 0) |
3439 | { | |
3440 | this_hdr->sh_flags |= SHF_MERGE; | |
3441 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3442 | } |
84865015 NC |
3443 | if ((asect->flags & SEC_STRINGS) != 0) |
3444 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3445 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3446 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3447 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3448 | { |
3449 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3450 | if (asect->size == 0 |
3451 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3452 | { |
3a800eb9 | 3453 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3454 | |
704afa60 | 3455 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3456 | if (o != NULL) |
3457 | { | |
704afa60 | 3458 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3459 | if (this_hdr->sh_size != 0) |
3460 | this_hdr->sh_type = SHT_NOBITS; | |
3461 | } | |
704afa60 JJ |
3462 | } |
3463 | } | |
18ae9cc1 L |
3464 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3465 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3466 | |
d4730f92 BS |
3467 | /* If the section has relocs, set up a section header for the |
3468 | SHT_REL[A] section. If two relocation sections are required for | |
3469 | this section, it is up to the processor-specific back-end to | |
3470 | create the other. */ | |
3471 | if ((asect->flags & SEC_RELOC) != 0) | |
3472 | { | |
3473 | /* When doing a relocatable link, create both REL and RELA sections if | |
3474 | needed. */ | |
3475 | if (arg->link_info | |
3476 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3477 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3478 | && (bfd_link_relocatable (arg->link_info) |
3479 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3480 | { |
3481 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3482 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3483 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3484 | { |
3485 | arg->failed = TRUE; | |
3486 | return; | |
3487 | } | |
3488 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3489 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3490 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3491 | { |
3492 | arg->failed = TRUE; | |
3493 | return; | |
3494 | } | |
3495 | } | |
3496 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3497 | (asect->use_rela_p | |
3498 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3499 | name, |
3e19fb8f L |
3500 | asect->use_rela_p, |
3501 | delay_st_name_p)) | |
db4677b8 | 3502 | { |
d4730f92 | 3503 | arg->failed = TRUE; |
db4677b8 AM |
3504 | return; |
3505 | } | |
d4730f92 BS |
3506 | } |
3507 | ||
252b5132 | 3508 | /* Check for processor-specific section types. */ |
0414f35b | 3509 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3510 | if (bed->elf_backend_fake_sections |
3511 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3512 | { |
3513 | arg->failed = TRUE; | |
3514 | return; | |
3515 | } | |
252b5132 | 3516 | |
42bb2e33 | 3517 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3518 | { |
3519 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3520 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3521 | this_hdr->sh_type = sh_type; |
3522 | } | |
252b5132 RH |
3523 | } |
3524 | ||
bcacc0f5 AM |
3525 | /* Fill in the contents of a SHT_GROUP section. Called from |
3526 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3527 | when ELF targets use the generic linker, ld. Called for ld -r | |
3528 | from bfd_elf_final_link. */ | |
dbb410c3 | 3529 | |
1126897b | 3530 | void |
217aa764 | 3531 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3532 | { |
a50b1753 | 3533 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3534 | asection *elt, *first; |
dbb410c3 | 3535 | unsigned char *loc; |
b34976b6 | 3536 | bfd_boolean gas; |
dbb410c3 | 3537 | |
7e4111ad L |
3538 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3539 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3540 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3541 | || sec->size == 0 | |
dbb410c3 AM |
3542 | || *failedptr) |
3543 | return; | |
3544 | ||
bcacc0f5 AM |
3545 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3546 | { | |
3547 | unsigned long symindx = 0; | |
3548 | ||
3549 | /* elf_group_id will have been set up by objcopy and the | |
3550 | generic linker. */ | |
3551 | if (elf_group_id (sec) != NULL) | |
3552 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3553 | |
bcacc0f5 AM |
3554 | if (symindx == 0) |
3555 | { | |
3556 | /* If called from the assembler, swap_out_syms will have set up | |
3557 | elf_section_syms. */ | |
3558 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3559 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3560 | } | |
3561 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3562 | } | |
3563 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3564 | { |
bcacc0f5 AM |
3565 | /* The ELF backend linker sets sh_info to -2 when the group |
3566 | signature symbol is global, and thus the index can't be | |
3567 | set until all local symbols are output. */ | |
53720c49 AM |
3568 | asection *igroup; |
3569 | struct bfd_elf_section_data *sec_data; | |
3570 | unsigned long symndx; | |
3571 | unsigned long extsymoff; | |
bcacc0f5 AM |
3572 | struct elf_link_hash_entry *h; |
3573 | ||
53720c49 AM |
3574 | /* The point of this little dance to the first SHF_GROUP section |
3575 | then back to the SHT_GROUP section is that this gets us to | |
3576 | the SHT_GROUP in the input object. */ | |
3577 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3578 | sec_data = elf_section_data (igroup); | |
3579 | symndx = sec_data->this_hdr.sh_info; | |
3580 | extsymoff = 0; | |
bcacc0f5 AM |
3581 | if (!elf_bad_symtab (igroup->owner)) |
3582 | { | |
3583 | Elf_Internal_Shdr *symtab_hdr; | |
3584 | ||
3585 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3586 | extsymoff = symtab_hdr->sh_info; | |
3587 | } | |
3588 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3589 | while (h->root.type == bfd_link_hash_indirect | |
3590 | || h->root.type == bfd_link_hash_warning) | |
3591 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3592 | ||
3593 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3594 | } |
dbb410c3 | 3595 | |
1126897b | 3596 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3597 | gas = TRUE; |
dbb410c3 AM |
3598 | if (sec->contents == NULL) |
3599 | { | |
b34976b6 | 3600 | gas = FALSE; |
a50b1753 | 3601 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3602 | |
3603 | /* Arrange for the section to be written out. */ | |
3604 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3605 | if (sec->contents == NULL) |
3606 | { | |
b34976b6 | 3607 | *failedptr = TRUE; |
dbb410c3 AM |
3608 | return; |
3609 | } | |
3610 | } | |
3611 | ||
eea6121a | 3612 | loc = sec->contents + sec->size; |
dbb410c3 | 3613 | |
9dce4196 AM |
3614 | /* Get the pointer to the first section in the group that gas |
3615 | squirreled away here. objcopy arranges for this to be set to the | |
3616 | start of the input section group. */ | |
3617 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3618 | |
3619 | /* First element is a flag word. Rest of section is elf section | |
3620 | indices for all the sections of the group. Write them backwards | |
3621 | just to keep the group in the same order as given in .section | |
3622 | directives, not that it matters. */ | |
3623 | while (elt != NULL) | |
3624 | { | |
9dce4196 | 3625 | asection *s; |
9dce4196 | 3626 | |
9dce4196 | 3627 | s = elt; |
415f38a6 AM |
3628 | if (!gas) |
3629 | s = s->output_section; | |
3630 | if (s != NULL | |
3631 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3632 | { |
db4677b8 | 3633 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3634 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3635 | ||
3636 | if (elf_sec->rel.hdr != NULL | |
3637 | && (gas | |
3638 | || (input_elf_sec->rel.hdr != NULL | |
3639 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3640 | { |
28e07a05 | 3641 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3642 | loc -= 4; |
3643 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3644 | } | |
28e07a05 AM |
3645 | if (elf_sec->rela.hdr != NULL |
3646 | && (gas | |
3647 | || (input_elf_sec->rela.hdr != NULL | |
3648 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3649 | { |
28e07a05 | 3650 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3651 | loc -= 4; |
3652 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3653 | } | |
01e1a5bc | 3654 | loc -= 4; |
db4677b8 | 3655 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3656 | } |
945906ff | 3657 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3658 | if (elt == first) |
3659 | break; | |
dbb410c3 AM |
3660 | } |
3661 | ||
7bdf4127 AB |
3662 | loc -= 4; |
3663 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3664 | |
9dce4196 | 3665 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3666 | } |
3667 | ||
bce964aa AM |
3668 | /* Given NAME, the name of a relocation section stripped of its |
3669 | .rel/.rela prefix, return the section in ABFD to which the | |
3670 | relocations apply. */ | |
bd53a53a L |
3671 | |
3672 | asection * | |
bce964aa AM |
3673 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3674 | { | |
3675 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3676 | section likely apply to .got.plt or .got section. */ | |
3677 | if (get_elf_backend_data (abfd)->want_got_plt | |
3678 | && strcmp (name, ".plt") == 0) | |
3679 | { | |
3680 | asection *sec; | |
3681 | ||
3682 | name = ".got.plt"; | |
3683 | sec = bfd_get_section_by_name (abfd, name); | |
3684 | if (sec != NULL) | |
3685 | return sec; | |
3686 | name = ".got"; | |
3687 | } | |
3688 | ||
3689 | return bfd_get_section_by_name (abfd, name); | |
3690 | } | |
3691 | ||
3692 | /* Return the section to which RELOC_SEC applies. */ | |
3693 | ||
3694 | static asection * | |
3695 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3696 | { |
3697 | const char *name; | |
3698 | unsigned int type; | |
3699 | bfd *abfd; | |
bce964aa | 3700 | const struct elf_backend_data *bed; |
bd53a53a L |
3701 | |
3702 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3703 | if (type != SHT_REL && type != SHT_RELA) | |
3704 | return NULL; | |
3705 | ||
3706 | /* We look up the section the relocs apply to by name. */ | |
3707 | name = reloc_sec->name; | |
bce964aa AM |
3708 | if (strncmp (name, ".rel", 4) != 0) |
3709 | return NULL; | |
3710 | name += 4; | |
3711 | if (type == SHT_RELA && *name++ != 'a') | |
3712 | return NULL; | |
bd53a53a | 3713 | |
bd53a53a | 3714 | abfd = reloc_sec->owner; |
bce964aa AM |
3715 | bed = get_elf_backend_data (abfd); |
3716 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3717 | } |
3718 | ||
252b5132 RH |
3719 | /* Assign all ELF section numbers. The dummy first section is handled here |
3720 | too. The link/info pointers for the standard section types are filled | |
3721 | in here too, while we're at it. */ | |
3722 | ||
b34976b6 | 3723 | static bfd_boolean |
da9f89d4 | 3724 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3725 | { |
3726 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3727 | asection *sec; | |
3e19fb8f | 3728 | unsigned int section_number; |
252b5132 | 3729 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3730 | struct bfd_elf_section_data *d; |
3516e984 | 3731 | bfd_boolean need_symtab; |
252b5132 RH |
3732 | |
3733 | section_number = 1; | |
3734 | ||
2b0f7ef9 JJ |
3735 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3736 | ||
da9f89d4 | 3737 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3738 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3739 | { |
ef53be89 | 3740 | size_t reloc_count = 0; |
14f2c699 | 3741 | |
da9f89d4 | 3742 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3743 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3744 | { |
5daa8fe7 | 3745 | d = elf_section_data (sec); |
da9f89d4 L |
3746 | |
3747 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3748 | { |
5daa8fe7 | 3749 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3750 | { |
3751 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3752 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3753 | abfd->section_count--; |
da9f89d4 | 3754 | } |
08a40648 | 3755 | else |
4fbb74a6 | 3756 | d->this_idx = section_number++; |
da9f89d4 | 3757 | } |
14f2c699 L |
3758 | |
3759 | /* Count relocations. */ | |
3760 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3761 | } |
14f2c699 L |
3762 | |
3763 | /* Clear HAS_RELOC if there are no relocations. */ | |
3764 | if (reloc_count == 0) | |
3765 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3766 | } |
3767 | ||
3768 | for (sec = abfd->sections; sec; sec = sec->next) | |
3769 | { | |
3770 | d = elf_section_data (sec); | |
3771 | ||
3772 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3773 | d->this_idx = section_number++; |
3e19fb8f L |
3774 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3775 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3776 | if (d->rel.hdr) |
2b0f7ef9 | 3777 | { |
d4730f92 | 3778 | d->rel.idx = section_number++; |
3e19fb8f L |
3779 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3780 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3781 | } |
d4730f92 BS |
3782 | else |
3783 | d->rel.idx = 0; | |
23bc299b | 3784 | |
d4730f92 | 3785 | if (d->rela.hdr) |
2b0f7ef9 | 3786 | { |
d4730f92 | 3787 | d->rela.idx = section_number++; |
3e19fb8f L |
3788 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3789 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3790 | } |
23bc299b | 3791 | else |
d4730f92 | 3792 | d->rela.idx = 0; |
252b5132 RH |
3793 | } |
3794 | ||
3516e984 L |
3795 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3796 | || (link_info == NULL | |
3797 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3798 | == HAS_RELOC))); | |
3799 | if (need_symtab) | |
252b5132 | 3800 | { |
12bd6957 | 3801 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3802 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3803 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3804 | { |
7a6e0d89 | 3805 | elf_section_list *entry; |
6a40cf0c NC |
3806 | |
3807 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3808 | ||
7a6e0d89 | 3809 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3810 | entry->ndx = section_number++; |
3811 | elf_symtab_shndx_list (abfd) = entry; | |
3812 | entry->hdr.sh_name | |
9ad5cbcf | 3813 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3814 | ".symtab_shndx", FALSE); |
6a40cf0c | 3815 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3816 | return FALSE; |
9ad5cbcf | 3817 | } |
12bd6957 | 3818 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3819 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3820 | } |
3821 | ||
dd905818 NC |
3822 | elf_shstrtab_sec (abfd) = section_number++; |
3823 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3824 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3825 | ||
1c52a645 L |
3826 | if (section_number >= SHN_LORESERVE) |
3827 | { | |
695344c0 | 3828 | /* xgettext:c-format */ |
871b3ab2 | 3829 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3830 | abfd, section_number); |
3831 | return FALSE; | |
3832 | } | |
3833 | ||
9ad5cbcf | 3834 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3835 | elf_elfheader (abfd)->e_shnum = section_number; |
3836 | ||
3837 | /* Set up the list of section header pointers, in agreement with the | |
3838 | indices. */ | |
a50b1753 | 3839 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
07d6d2b8 | 3840 | sizeof (Elf_Internal_Shdr *)); |
252b5132 | 3841 | if (i_shdrp == NULL) |
b34976b6 | 3842 | return FALSE; |
252b5132 | 3843 | |
a50b1753 | 3844 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3845 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3846 | if (i_shdrp[0] == NULL) |
3847 | { | |
3848 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3849 | return FALSE; |
252b5132 | 3850 | } |
252b5132 RH |
3851 | |
3852 | elf_elfsections (abfd) = i_shdrp; | |
3853 | ||
12bd6957 | 3854 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3855 | if (need_symtab) |
252b5132 | 3856 | { |
12bd6957 | 3857 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3858 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3859 | { |
6a40cf0c NC |
3860 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3861 | BFD_ASSERT (entry != NULL); | |
3862 | i_shdrp[entry->ndx] = & entry->hdr; | |
3863 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3864 | } |
12bd6957 AM |
3865 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3866 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3867 | } |
38ce5b11 | 3868 | |
252b5132 RH |
3869 | for (sec = abfd->sections; sec; sec = sec->next) |
3870 | { | |
252b5132 | 3871 | asection *s; |
252b5132 | 3872 | |
91d6fa6a NC |
3873 | d = elf_section_data (sec); |
3874 | ||
252b5132 | 3875 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3876 | if (d->rel.idx != 0) |
3877 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3878 | if (d->rela.idx != 0) | |
3879 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3880 | |
3881 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3882 | ||
3883 | /* sh_link of a reloc section is the section index of the symbol | |
3884 | table. sh_info is the section index of the section to which | |
3885 | the relocation entries apply. */ | |
d4730f92 | 3886 | if (d->rel.idx != 0) |
252b5132 | 3887 | { |
12bd6957 | 3888 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3889 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3890 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3891 | } |
d4730f92 | 3892 | if (d->rela.idx != 0) |
23bc299b | 3893 | { |
12bd6957 | 3894 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3895 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3896 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3897 | } |
252b5132 | 3898 | |
38ce5b11 L |
3899 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3900 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3901 | { | |
3902 | s = elf_linked_to_section (sec); | |
3903 | if (s) | |
38ce5b11 | 3904 | { |
f2876037 | 3905 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3906 | if (link_info != NULL) |
38ce5b11 | 3907 | { |
f2876037 | 3908 | /* Check discarded linkonce section. */ |
dbaa2011 | 3909 | if (discarded_section (s)) |
38ce5b11 | 3910 | { |
ccd2ec6a | 3911 | asection *kept; |
4eca0228 | 3912 | _bfd_error_handler |
695344c0 | 3913 | /* xgettext:c-format */ |
871b3ab2 AM |
3914 | (_("%pB: sh_link of section `%pA' points to" |
3915 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3916 | abfd, d->this_hdr.bfd_section, |
3917 | s, s->owner); | |
3918 | /* Point to the kept section if it has the same | |
3919 | size as the discarded one. */ | |
c0f00686 | 3920 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3921 | if (kept == NULL) |
185d09ad | 3922 | { |
ccd2ec6a L |
3923 | bfd_set_error (bfd_error_bad_value); |
3924 | return FALSE; | |
185d09ad | 3925 | } |
ccd2ec6a | 3926 | s = kept; |
38ce5b11 | 3927 | } |
e424ecc8 | 3928 | |
ccd2ec6a L |
3929 | s = s->output_section; |
3930 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3931 | } |
f2876037 L |
3932 | else |
3933 | { | |
3934 | /* Handle objcopy. */ | |
3935 | if (s->output_section == NULL) | |
3936 | { | |
4eca0228 | 3937 | _bfd_error_handler |
695344c0 | 3938 | /* xgettext:c-format */ |
871b3ab2 AM |
3939 | (_("%pB: sh_link of section `%pA' points to" |
3940 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3941 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3942 | bfd_set_error (bfd_error_bad_value); | |
3943 | return FALSE; | |
3944 | } | |
3945 | s = s->output_section; | |
3946 | } | |
ccd2ec6a L |
3947 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3948 | } | |
3949 | else | |
3950 | { | |
3951 | /* PR 290: | |
3952 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3953 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3954 | sh_info fields. Hence we could get the situation | |
08a40648 | 3955 | where s is NULL. */ |
ccd2ec6a L |
3956 | const struct elf_backend_data *bed |
3957 | = get_elf_backend_data (abfd); | |
3958 | if (bed->link_order_error_handler) | |
3959 | bed->link_order_error_handler | |
695344c0 | 3960 | /* xgettext:c-format */ |
871b3ab2 | 3961 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3962 | abfd, sec); |
38ce5b11 L |
3963 | } |
3964 | } | |
3965 | ||
252b5132 RH |
3966 | switch (d->this_hdr.sh_type) |
3967 | { | |
3968 | case SHT_REL: | |
3969 | case SHT_RELA: | |
3970 | /* A reloc section which we are treating as a normal BFD | |
3971 | section. sh_link is the section index of the symbol | |
3972 | table. sh_info is the section index of the section to | |
3973 | which the relocation entries apply. We assume that an | |
3974 | allocated reloc section uses the dynamic symbol table. | |
3975 | FIXME: How can we be sure? */ | |
3976 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3977 | if (s != NULL) | |
3978 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3979 | ||
bce964aa | 3980 | s = elf_get_reloc_section (sec); |
252b5132 | 3981 | if (s != NULL) |
9ef5d938 L |
3982 | { |
3983 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3984 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3985 | } | |
252b5132 RH |
3986 | break; |
3987 | ||
3988 | case SHT_STRTAB: | |
3989 | /* We assume that a section named .stab*str is a stabs | |
3990 | string section. We look for a section with the same name | |
3991 | but without the trailing ``str'', and set its sh_link | |
3992 | field to point to this section. */ | |
0112cd26 | 3993 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3994 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3995 | { | |
3996 | size_t len; | |
3997 | char *alc; | |
3998 | ||
3999 | len = strlen (sec->name); | |
a50b1753 | 4000 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 4001 | if (alc == NULL) |
b34976b6 | 4002 | return FALSE; |
d4c88bbb | 4003 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
4004 | alc[len - 3] = '\0'; |
4005 | s = bfd_get_section_by_name (abfd, alc); | |
4006 | free (alc); | |
4007 | if (s != NULL) | |
4008 | { | |
4009 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
4010 | ||
4011 | /* This is a .stab section. */ | |
0594c12d AM |
4012 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
4013 | elf_section_data (s)->this_hdr.sh_entsize | |
4014 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
4015 | } |
4016 | } | |
4017 | break; | |
4018 | ||
4019 | case SHT_DYNAMIC: | |
4020 | case SHT_DYNSYM: | |
4021 | case SHT_GNU_verneed: | |
4022 | case SHT_GNU_verdef: | |
4023 | /* sh_link is the section header index of the string table | |
4024 | used for the dynamic entries, or the symbol table, or the | |
4025 | version strings. */ | |
4026 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
4027 | if (s != NULL) | |
4028 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4029 | break; | |
4030 | ||
7f1204bb JJ |
4031 | case SHT_GNU_LIBLIST: |
4032 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
4033 | list used for the dynamic entries, or the symbol table, or |
4034 | the version strings. */ | |
7f1204bb JJ |
4035 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
4036 | ? ".dynstr" : ".gnu.libstr"); | |
4037 | if (s != NULL) | |
4038 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4039 | break; | |
4040 | ||
252b5132 | 4041 | case SHT_HASH: |
fdc90cb4 | 4042 | case SHT_GNU_HASH: |
252b5132 RH |
4043 | case SHT_GNU_versym: |
4044 | /* sh_link is the section header index of the symbol table | |
4045 | this hash table or version table is for. */ | |
4046 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4047 | if (s != NULL) | |
4048 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4049 | break; | |
dbb410c3 AM |
4050 | |
4051 | case SHT_GROUP: | |
12bd6957 | 4052 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4053 | } |
4054 | } | |
4055 | ||
3e19fb8f L |
4056 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4057 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4058 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4059 | ||
b34976b6 | 4060 | return TRUE; |
252b5132 RH |
4061 | } |
4062 | ||
5372391b | 4063 | static bfd_boolean |
217aa764 | 4064 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4065 | { |
4066 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4067 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4068 | if (bed->elf_backend_sym_is_global) |
4069 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4070 | |
e47bf690 | 4071 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
e6f7f6d1 AM |
4072 | || bfd_is_und_section (bfd_asymbol_section (sym)) |
4073 | || bfd_is_com_section (bfd_asymbol_section (sym))); | |
252b5132 RH |
4074 | } |
4075 | ||
76359541 TP |
4076 | /* Filter global symbols of ABFD to include in the import library. All |
4077 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4078 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4079 | the beginning of that array. | |
4080 | ||
4081 | Returns the number of symbols to keep. */ | |
4082 | ||
4083 | unsigned int | |
4084 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4085 | asymbol **syms, long symcount) | |
4086 | { | |
4087 | long src_count, dst_count = 0; | |
4088 | ||
4089 | for (src_count = 0; src_count < symcount; src_count++) | |
4090 | { | |
4091 | asymbol *sym = syms[src_count]; | |
4092 | char *name = (char *) bfd_asymbol_name (sym); | |
4093 | struct bfd_link_hash_entry *h; | |
4094 | ||
4095 | if (!sym_is_global (abfd, sym)) | |
4096 | continue; | |
4097 | ||
4098 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4099 | if (h == NULL) |
4100 | continue; | |
76359541 TP |
4101 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4102 | continue; | |
76359541 TP |
4103 | if (h->linker_def || h->ldscript_def) |
4104 | continue; | |
4105 | ||
4106 | syms[dst_count++] = sym; | |
4107 | } | |
4108 | ||
4109 | syms[dst_count] = NULL; | |
4110 | ||
4111 | return dst_count; | |
4112 | } | |
4113 | ||
5372391b | 4114 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4115 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4116 | |
4117 | static bfd_boolean | |
4118 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4119 | { | |
c6d8cab4 L |
4120 | elf_symbol_type *type_ptr; |
4121 | ||
db0c309f NC |
4122 | if (sym == NULL) |
4123 | return FALSE; | |
4124 | ||
c6d8cab4 L |
4125 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4126 | return FALSE; | |
4127 | ||
db0c309f NC |
4128 | if (sym->section == NULL) |
4129 | return TRUE; | |
4130 | ||
c6d8cab4 L |
4131 | type_ptr = elf_symbol_from (abfd, sym); |
4132 | return ((type_ptr != NULL | |
4133 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4134 | && bfd_is_abs_section (sym->section)) | |
4135 | || !(sym->section->owner == abfd | |
db0c309f NC |
4136 | || (sym->section->output_section != NULL |
4137 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4138 | && sym->section->output_offset == 0) |
4139 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4140 | } |
4141 | ||
2633a79c AM |
4142 | /* Map symbol from it's internal number to the external number, moving |
4143 | all local symbols to be at the head of the list. */ | |
4144 | ||
b34976b6 | 4145 | static bfd_boolean |
12bd6957 | 4146 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4147 | { |
dc810e39 | 4148 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4149 | asymbol **syms = bfd_get_outsymbols (abfd); |
4150 | asymbol **sect_syms; | |
dc810e39 AM |
4151 | unsigned int num_locals = 0; |
4152 | unsigned int num_globals = 0; | |
4153 | unsigned int num_locals2 = 0; | |
4154 | unsigned int num_globals2 = 0; | |
7292b3ac | 4155 | unsigned int max_index = 0; |
dc810e39 | 4156 | unsigned int idx; |
252b5132 RH |
4157 | asection *asect; |
4158 | asymbol **new_syms; | |
252b5132 RH |
4159 | |
4160 | #ifdef DEBUG | |
4161 | fprintf (stderr, "elf_map_symbols\n"); | |
4162 | fflush (stderr); | |
4163 | #endif | |
4164 | ||
252b5132 RH |
4165 | for (asect = abfd->sections; asect; asect = asect->next) |
4166 | { | |
4167 | if (max_index < asect->index) | |
4168 | max_index = asect->index; | |
4169 | } | |
4170 | ||
4171 | max_index++; | |
a50b1753 | 4172 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 4173 | if (sect_syms == NULL) |
b34976b6 | 4174 | return FALSE; |
252b5132 | 4175 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4176 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4177 | |
079e9a2f AM |
4178 | /* Init sect_syms entries for any section symbols we have already |
4179 | decided to output. */ | |
252b5132 RH |
4180 | for (idx = 0; idx < symcount; idx++) |
4181 | { | |
dc810e39 | 4182 | asymbol *sym = syms[idx]; |
c044fabd | 4183 | |
252b5132 | 4184 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4185 | && sym->value == 0 |
2633a79c AM |
4186 | && !ignore_section_sym (abfd, sym) |
4187 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4188 | { |
5372391b | 4189 | asection *sec = sym->section; |
252b5132 | 4190 | |
5372391b AM |
4191 | if (sec->owner != abfd) |
4192 | sec = sec->output_section; | |
252b5132 | 4193 | |
5372391b | 4194 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4195 | } |
4196 | } | |
4197 | ||
252b5132 RH |
4198 | /* Classify all of the symbols. */ |
4199 | for (idx = 0; idx < symcount; idx++) | |
4200 | { | |
2633a79c | 4201 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4202 | num_globals++; |
2633a79c AM |
4203 | else if (!ignore_section_sym (abfd, syms[idx])) |
4204 | num_locals++; | |
252b5132 | 4205 | } |
079e9a2f | 4206 | |
5372391b | 4207 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4208 | sections will already have a section symbol in outsymbols, but |
4209 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4210 | at least in that case. */ | |
252b5132 RH |
4211 | for (asect = abfd->sections; asect; asect = asect->next) |
4212 | { | |
079e9a2f | 4213 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4214 | { |
079e9a2f | 4215 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4216 | num_locals++; |
4217 | else | |
4218 | num_globals++; | |
252b5132 RH |
4219 | } |
4220 | } | |
4221 | ||
4222 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 | 4223 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
07d6d2b8 | 4224 | sizeof (asymbol *)); |
dc810e39 | 4225 | |
252b5132 | 4226 | if (new_syms == NULL) |
b34976b6 | 4227 | return FALSE; |
252b5132 RH |
4228 | |
4229 | for (idx = 0; idx < symcount; idx++) | |
4230 | { | |
4231 | asymbol *sym = syms[idx]; | |
dc810e39 | 4232 | unsigned int i; |
252b5132 | 4233 | |
2633a79c AM |
4234 | if (sym_is_global (abfd, sym)) |
4235 | i = num_locals + num_globals2++; | |
4236 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4237 | i = num_locals2++; |
4238 | else | |
2633a79c | 4239 | continue; |
252b5132 RH |
4240 | new_syms[i] = sym; |
4241 | sym->udata.i = i + 1; | |
4242 | } | |
4243 | for (asect = abfd->sections; asect; asect = asect->next) | |
4244 | { | |
079e9a2f | 4245 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4246 | { |
079e9a2f | 4247 | asymbol *sym = asect->symbol; |
dc810e39 | 4248 | unsigned int i; |
252b5132 | 4249 | |
079e9a2f | 4250 | sect_syms[asect->index] = sym; |
252b5132 RH |
4251 | if (!sym_is_global (abfd, sym)) |
4252 | i = num_locals2++; | |
4253 | else | |
4254 | i = num_locals + num_globals2++; | |
4255 | new_syms[i] = sym; | |
4256 | sym->udata.i = i + 1; | |
4257 | } | |
4258 | } | |
4259 | ||
4260 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4261 | ||
12bd6957 | 4262 | *pnum_locals = num_locals; |
b34976b6 | 4263 | return TRUE; |
252b5132 RH |
4264 | } |
4265 | ||
4266 | /* Align to the maximum file alignment that could be required for any | |
4267 | ELF data structure. */ | |
4268 | ||
268b6b39 | 4269 | static inline file_ptr |
217aa764 | 4270 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4271 | { |
4272 | return (off + align - 1) & ~(align - 1); | |
4273 | } | |
4274 | ||
4275 | /* Assign a file position to a section, optionally aligning to the | |
4276 | required section alignment. */ | |
4277 | ||
217aa764 AM |
4278 | file_ptr |
4279 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4280 | file_ptr offset, | |
4281 | bfd_boolean align) | |
252b5132 | 4282 | { |
72de5009 AM |
4283 | if (align && i_shdrp->sh_addralign > 1) |
4284 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4285 | i_shdrp->sh_offset = offset; |
4286 | if (i_shdrp->bfd_section != NULL) | |
4287 | i_shdrp->bfd_section->filepos = offset; | |
4288 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4289 | offset += i_shdrp->sh_size; | |
4290 | return offset; | |
4291 | } | |
4292 | ||
4293 | /* Compute the file positions we are going to put the sections at, and | |
4294 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4295 | is not NULL, this is being called by the ELF backend linker. */ | |
4296 | ||
b34976b6 | 4297 | bfd_boolean |
217aa764 AM |
4298 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4299 | struct bfd_link_info *link_info) | |
252b5132 | 4300 | { |
9c5bfbb7 | 4301 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4302 | struct fake_section_arg fsargs; |
b34976b6 | 4303 | bfd_boolean failed; |
ef10c3ac | 4304 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4305 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4306 | bfd_boolean need_symtab; |
252b5132 RH |
4307 | |
4308 | if (abfd->output_has_begun) | |
b34976b6 | 4309 | return TRUE; |
252b5132 RH |
4310 | |
4311 | /* Do any elf backend specific processing first. */ | |
4312 | if (bed->elf_backend_begin_write_processing) | |
4313 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4314 | ||
4315 | if (! prep_headers (abfd)) | |
b34976b6 | 4316 | return FALSE; |
252b5132 | 4317 | |
e6c51ed4 | 4318 | /* Post process the headers if necessary. */ |
78245035 | 4319 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 4320 | |
d4730f92 BS |
4321 | fsargs.failed = FALSE; |
4322 | fsargs.link_info = link_info; | |
4323 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4324 | if (fsargs.failed) | |
b34976b6 | 4325 | return FALSE; |
252b5132 | 4326 | |
da9f89d4 | 4327 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4328 | return FALSE; |
252b5132 RH |
4329 | |
4330 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4331 | need_symtab = (link_info == NULL |
4332 | && (bfd_get_symcount (abfd) > 0 | |
4333 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4334 | == HAS_RELOC))); | |
4335 | if (need_symtab) | |
252b5132 RH |
4336 | { |
4337 | /* Non-zero if doing a relocatable link. */ | |
4338 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4339 | ||
4340 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4341 | return FALSE; |
252b5132 RH |
4342 | } |
4343 | ||
d4730f92 | 4344 | failed = FALSE; |
1126897b | 4345 | if (link_info == NULL) |
dbb410c3 | 4346 | { |
1126897b | 4347 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4348 | if (failed) |
b34976b6 | 4349 | return FALSE; |
dbb410c3 AM |
4350 | } |
4351 | ||
252b5132 RH |
4352 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
4353 | /* sh_name was set in prep_headers. */ | |
4354 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
84865015 | 4355 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4356 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4357 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4358 | shstrtab_hdr->sh_entsize = 0; |
4359 | shstrtab_hdr->sh_link = 0; | |
4360 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4361 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4362 | shstrtab_hdr->sh_addralign = 1; |
4363 | ||
c84fca4d | 4364 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4365 | return FALSE; |
252b5132 | 4366 | |
3516e984 | 4367 | if (need_symtab) |
252b5132 RH |
4368 | { |
4369 | file_ptr off; | |
4370 | Elf_Internal_Shdr *hdr; | |
4371 | ||
12bd6957 | 4372 | off = elf_next_file_pos (abfd); |
252b5132 | 4373 | |
6a40cf0c | 4374 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4375 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4376 | |
6a40cf0c NC |
4377 | if (elf_symtab_shndx_list (abfd) != NULL) |
4378 | { | |
4379 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4380 | if (hdr->sh_size != 0) | |
4381 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4382 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4383 | } | |
9ad5cbcf | 4384 | |
252b5132 | 4385 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4386 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4387 | |
12bd6957 | 4388 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4389 | |
4390 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4391 | out. */ |
252b5132 | 4392 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4393 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4394 | return FALSE; |
ef10c3ac | 4395 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4396 | } |
4397 | ||
b34976b6 | 4398 | abfd->output_has_begun = TRUE; |
252b5132 | 4399 | |
b34976b6 | 4400 | return TRUE; |
252b5132 RH |
4401 | } |
4402 | ||
8ded5a0f AM |
4403 | /* Make an initial estimate of the size of the program header. If we |
4404 | get the number wrong here, we'll redo section placement. */ | |
4405 | ||
4406 | static bfd_size_type | |
4407 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4408 | { | |
4409 | size_t segs; | |
4410 | asection *s; | |
2b05f1b7 | 4411 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4412 | |
4413 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4414 | and one for data. */ | |
4415 | segs = 2; | |
4416 | ||
4417 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4418 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4419 | { |
4420 | /* If we have a loadable interpreter section, we need a | |
4421 | PT_INTERP segment. In this case, assume we also need a | |
4422 | PT_PHDR segment, although that may not be true for all | |
4423 | targets. */ | |
e9a38e0f | 4424 | segs += 2; |
8ded5a0f AM |
4425 | } |
4426 | ||
4427 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4428 | { | |
4429 | /* We need a PT_DYNAMIC segment. */ | |
4430 | ++segs; | |
f210dcff | 4431 | } |
08a40648 | 4432 | |
ceae84aa | 4433 | if (info != NULL && info->relro) |
f210dcff L |
4434 | { |
4435 | /* We need a PT_GNU_RELRO segment. */ | |
4436 | ++segs; | |
8ded5a0f AM |
4437 | } |
4438 | ||
12bd6957 | 4439 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4440 | { |
4441 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4442 | ++segs; | |
4443 | } | |
4444 | ||
12bd6957 | 4445 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4446 | { |
2b05f1b7 L |
4447 | /* We need a PT_GNU_STACK segment. */ |
4448 | ++segs; | |
4449 | } | |
94b11780 | 4450 | |
0a59decb L |
4451 | s = bfd_get_section_by_name (abfd, |
4452 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4453 | if (s != NULL && s->size != 0) | |
4454 | { | |
4455 | /* We need a PT_GNU_PROPERTY segment. */ | |
4456 | ++segs; | |
4457 | } | |
4458 | ||
2b05f1b7 L |
4459 | for (s = abfd->sections; s != NULL; s = s->next) |
4460 | { | |
8ded5a0f | 4461 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4462 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4463 | { |
23e463ed | 4464 | unsigned int alignment_power; |
8ded5a0f AM |
4465 | /* We need a PT_NOTE segment. */ |
4466 | ++segs; | |
23e463ed L |
4467 | /* Try to create just one PT_NOTE segment for all adjacent |
4468 | loadable SHT_NOTE sections. gABI requires that within a | |
4469 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4470 | each note should have the same alignment. So we check | |
4471 | whether the sections are correctly aligned. */ | |
4472 | alignment_power = s->alignment_power; | |
4473 | while (s->next != NULL | |
4474 | && s->next->alignment_power == alignment_power | |
4475 | && (s->next->flags & SEC_LOAD) != 0 | |
4476 | && elf_section_type (s->next) == SHT_NOTE) | |
4477 | s = s->next; | |
8ded5a0f AM |
4478 | } |
4479 | } | |
4480 | ||
4481 | for (s = abfd->sections; s != NULL; s = s->next) | |
4482 | { | |
4483 | if (s->flags & SEC_THREAD_LOCAL) | |
4484 | { | |
4485 | /* We need a PT_TLS segment. */ | |
4486 | ++segs; | |
4487 | break; | |
4488 | } | |
4489 | } | |
4490 | ||
2b05f1b7 | 4491 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4492 | |
df3a023b AM |
4493 | if ((abfd->flags & D_PAGED) != 0 |
4494 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4495 | { | |
4496 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4497 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4498 | for (s = abfd->sections; s != NULL; s = s->next) | |
4499 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4500 | { | |
4501 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4502 | { | |
4503 | _bfd_error_handler | |
4504 | /* xgettext:c-format */ | |
4505 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4506 | "sh_info field: %d"), | |
4507 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4508 | continue; | |
4509 | } | |
4510 | /* Align mbind section to page size. */ | |
4511 | if (s->alignment_power < page_align_power) | |
4512 | s->alignment_power = page_align_power; | |
4513 | segs ++; | |
4514 | } | |
4515 | } | |
4516 | ||
4517 | /* Let the backend count up any program headers it might need. */ | |
4518 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4519 | { |
4520 | int a; | |
4521 | ||
4522 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4523 | if (a == -1) | |
4524 | abort (); | |
4525 | segs += a; | |
4526 | } | |
4527 | ||
4528 | return segs * bed->s->sizeof_phdr; | |
4529 | } | |
4530 | ||
2ea37f1c NC |
4531 | /* Find the segment that contains the output_section of section. */ |
4532 | ||
4533 | Elf_Internal_Phdr * | |
4534 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4535 | { | |
4536 | struct elf_segment_map *m; | |
4537 | Elf_Internal_Phdr *p; | |
4538 | ||
12bd6957 | 4539 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4540 | m != NULL; |
4541 | m = m->next, p++) | |
4542 | { | |
4543 | int i; | |
4544 | ||
4545 | for (i = m->count - 1; i >= 0; i--) | |
4546 | if (m->sections[i] == section) | |
4547 | return p; | |
4548 | } | |
4549 | ||
4550 | return NULL; | |
4551 | } | |
4552 | ||
252b5132 RH |
4553 | /* Create a mapping from a set of sections to a program segment. */ |
4554 | ||
217aa764 AM |
4555 | static struct elf_segment_map * |
4556 | make_mapping (bfd *abfd, | |
4557 | asection **sections, | |
4558 | unsigned int from, | |
4559 | unsigned int to, | |
4560 | bfd_boolean phdr) | |
252b5132 RH |
4561 | { |
4562 | struct elf_segment_map *m; | |
4563 | unsigned int i; | |
4564 | asection **hdrpp; | |
dc810e39 | 4565 | bfd_size_type amt; |
252b5132 | 4566 | |
00bee008 AM |
4567 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4568 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4569 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4570 | if (m == NULL) |
4571 | return NULL; | |
4572 | m->next = NULL; | |
4573 | m->p_type = PT_LOAD; | |
4574 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4575 | m->sections[i - from] = *hdrpp; | |
4576 | m->count = to - from; | |
4577 | ||
4578 | if (from == 0 && phdr) | |
4579 | { | |
4580 | /* Include the headers in the first PT_LOAD segment. */ | |
4581 | m->includes_filehdr = 1; | |
4582 | m->includes_phdrs = 1; | |
4583 | } | |
4584 | ||
4585 | return m; | |
4586 | } | |
4587 | ||
229fcec5 MM |
4588 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4589 | on failure. */ | |
4590 | ||
4591 | struct elf_segment_map * | |
4592 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4593 | { | |
4594 | struct elf_segment_map *m; | |
4595 | ||
a50b1753 | 4596 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4597 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4598 | if (m == NULL) |
4599 | return NULL; | |
4600 | m->next = NULL; | |
4601 | m->p_type = PT_DYNAMIC; | |
4602 | m->count = 1; | |
4603 | m->sections[0] = dynsec; | |
08a40648 | 4604 | |
229fcec5 MM |
4605 | return m; |
4606 | } | |
4607 | ||
8ded5a0f | 4608 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4609 | |
b34976b6 | 4610 | static bfd_boolean |
3dea8fca AM |
4611 | elf_modify_segment_map (bfd *abfd, |
4612 | struct bfd_link_info *info, | |
4613 | bfd_boolean remove_empty_load) | |
252b5132 | 4614 | { |
252e386e | 4615 | struct elf_segment_map **m; |
8ded5a0f | 4616 | const struct elf_backend_data *bed; |
252b5132 | 4617 | |
8ded5a0f AM |
4618 | /* The placement algorithm assumes that non allocated sections are |
4619 | not in PT_LOAD segments. We ensure this here by removing such | |
4620 | sections from the segment map. We also remove excluded | |
252e386e AM |
4621 | sections. Finally, any PT_LOAD segment without sections is |
4622 | removed. */ | |
12bd6957 | 4623 | m = &elf_seg_map (abfd); |
252e386e | 4624 | while (*m) |
8ded5a0f AM |
4625 | { |
4626 | unsigned int i, new_count; | |
252b5132 | 4627 | |
252e386e | 4628 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4629 | { |
252e386e AM |
4630 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4631 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4632 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4633 | { |
252e386e AM |
4634 | (*m)->sections[new_count] = (*m)->sections[i]; |
4635 | new_count++; | |
8ded5a0f AM |
4636 | } |
4637 | } | |
252e386e | 4638 | (*m)->count = new_count; |
252b5132 | 4639 | |
1a9ccd70 NC |
4640 | if (remove_empty_load |
4641 | && (*m)->p_type == PT_LOAD | |
4642 | && (*m)->count == 0 | |
4643 | && !(*m)->includes_phdrs) | |
252e386e AM |
4644 | *m = (*m)->next; |
4645 | else | |
4646 | m = &(*m)->next; | |
8ded5a0f | 4647 | } |
252b5132 | 4648 | |
8ded5a0f AM |
4649 | bed = get_elf_backend_data (abfd); |
4650 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4651 | { |
252e386e | 4652 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4653 | return FALSE; |
252b5132 | 4654 | } |
252b5132 | 4655 | |
8ded5a0f AM |
4656 | return TRUE; |
4657 | } | |
252b5132 | 4658 | |
dbc88fc1 AM |
4659 | #define IS_TBSS(s) \ |
4660 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4661 | ||
8ded5a0f | 4662 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4663 | |
8ded5a0f AM |
4664 | bfd_boolean |
4665 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4666 | { | |
4667 | unsigned int count; | |
4668 | struct elf_segment_map *m; | |
4669 | asection **sections = NULL; | |
4670 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4671 | bfd_boolean no_user_phdrs; |
252b5132 | 4672 | |
12bd6957 | 4673 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4674 | |
4675 | if (info != NULL) | |
4676 | info->user_phdrs = !no_user_phdrs; | |
4677 | ||
3dea8fca | 4678 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4679 | { |
8ded5a0f AM |
4680 | asection *s; |
4681 | unsigned int i; | |
4682 | struct elf_segment_map *mfirst; | |
4683 | struct elf_segment_map **pm; | |
4684 | asection *last_hdr; | |
4685 | bfd_vma last_size; | |
00bee008 | 4686 | unsigned int hdr_index; |
8ded5a0f AM |
4687 | bfd_vma maxpagesize; |
4688 | asection **hdrpp; | |
64029e93 | 4689 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4690 | bfd_boolean writable; |
2888249f | 4691 | bfd_boolean executable; |
8ded5a0f AM |
4692 | int tls_count = 0; |
4693 | asection *first_tls = NULL; | |
a91e1603 | 4694 | asection *first_mbind = NULL; |
8ded5a0f AM |
4695 | asection *dynsec, *eh_frame_hdr; |
4696 | bfd_size_type amt; | |
8d06853e | 4697 | bfd_vma addr_mask, wrap_to = 0; |
64029e93 | 4698 | bfd_size_type phdr_size; |
252b5132 | 4699 | |
8ded5a0f | 4700 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4701 | |
a50b1753 | 4702 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
07d6d2b8 | 4703 | sizeof (asection *)); |
8ded5a0f | 4704 | if (sections == NULL) |
252b5132 | 4705 | goto error_return; |
252b5132 | 4706 | |
8d06853e AM |
4707 | /* Calculate top address, avoiding undefined behaviour of shift |
4708 | left operator when shift count is equal to size of type | |
4709 | being shifted. */ | |
4710 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4711 | addr_mask = (addr_mask << 1) + 1; | |
4712 | ||
8ded5a0f AM |
4713 | i = 0; |
4714 | for (s = abfd->sections; s != NULL; s = s->next) | |
4715 | { | |
4716 | if ((s->flags & SEC_ALLOC) != 0) | |
4717 | { | |
48db3297 AM |
4718 | /* target_index is unused until bfd_elf_final_link |
4719 | starts output of section symbols. Use it to make | |
4720 | qsort stable. */ | |
4721 | s->target_index = i; | |
8ded5a0f AM |
4722 | sections[i] = s; |
4723 | ++i; | |
8d06853e AM |
4724 | /* A wrapping section potentially clashes with header. */ |
4725 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4726 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4727 | } |
4728 | } | |
4729 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4730 | count = i; | |
252b5132 | 4731 | |
8ded5a0f | 4732 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4733 | |
64029e93 AM |
4734 | phdr_size = elf_program_header_size (abfd); |
4735 | if (phdr_size == (bfd_size_type) -1) | |
4736 | phdr_size = get_program_header_size (abfd, info); | |
4737 | phdr_size += bed->s->sizeof_ehdr; | |
4738 | maxpagesize = bed->maxpagesize; | |
4739 | if (maxpagesize == 0) | |
4740 | maxpagesize = 1; | |
4741 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4742 | if (count != 0 | |
4743 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4744 | >= (phdr_size & (maxpagesize - 1)))) | |
4745 | /* For compatibility with old scripts that may not be using | |
4746 | SIZEOF_HEADERS, add headers when it looks like space has | |
4747 | been left for them. */ | |
4748 | phdr_in_segment = TRUE; | |
252b5132 | 4749 | |
64029e93 | 4750 | /* Build the mapping. */ |
8ded5a0f AM |
4751 | mfirst = NULL; |
4752 | pm = &mfirst; | |
252b5132 | 4753 | |
8ded5a0f AM |
4754 | /* If we have a .interp section, then create a PT_PHDR segment for |
4755 | the program headers and a PT_INTERP segment for the .interp | |
4756 | section. */ | |
4757 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4758 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4759 | { |
4760 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4761 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4762 | if (m == NULL) |
4763 | goto error_return; | |
4764 | m->next = NULL; | |
4765 | m->p_type = PT_PHDR; | |
f882209d | 4766 | m->p_flags = PF_R; |
8ded5a0f AM |
4767 | m->p_flags_valid = 1; |
4768 | m->includes_phdrs = 1; | |
64029e93 | 4769 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4770 | *pm = m; |
4771 | pm = &m->next; | |
252b5132 | 4772 | |
8ded5a0f | 4773 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4774 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4775 | if (m == NULL) |
4776 | goto error_return; | |
4777 | m->next = NULL; | |
4778 | m->p_type = PT_INTERP; | |
4779 | m->count = 1; | |
4780 | m->sections[0] = s; | |
4781 | ||
4782 | *pm = m; | |
4783 | pm = &m->next; | |
252b5132 | 4784 | } |
8ded5a0f AM |
4785 | |
4786 | /* Look through the sections. We put sections in the same program | |
4787 | segment when the start of the second section can be placed within | |
4788 | a few bytes of the end of the first section. */ | |
4789 | last_hdr = NULL; | |
4790 | last_size = 0; | |
00bee008 | 4791 | hdr_index = 0; |
8ded5a0f | 4792 | writable = FALSE; |
2888249f | 4793 | executable = FALSE; |
8ded5a0f AM |
4794 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4795 | if (dynsec != NULL | |
4796 | && (dynsec->flags & SEC_LOAD) == 0) | |
4797 | dynsec = NULL; | |
4798 | ||
64029e93 AM |
4799 | if ((abfd->flags & D_PAGED) == 0) |
4800 | phdr_in_segment = FALSE; | |
4801 | ||
8ded5a0f AM |
4802 | /* Deal with -Ttext or something similar such that the first section |
4803 | is not adjacent to the program headers. This is an | |
4804 | approximation, since at this point we don't know exactly how many | |
4805 | program headers we will need. */ | |
64029e93 | 4806 | if (phdr_in_segment && count > 0) |
252b5132 | 4807 | { |
64029e93 AM |
4808 | bfd_vma phdr_lma; |
4809 | bfd_boolean separate_phdr = FALSE; | |
4810 | ||
4811 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4812 | if (info != NULL | |
4813 | && info->separate_code | |
4814 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4815 | { |
64029e93 AM |
4816 | /* If data sections should be separate from code and |
4817 | thus not executable, and the first section is | |
4818 | executable then put the file and program headers in | |
4819 | their own PT_LOAD. */ | |
4820 | separate_phdr = TRUE; | |
4821 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4822 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4823 | { | |
4824 | /* The file and program headers are currently on the | |
4825 | same page as the first section. Put them on the | |
4826 | previous page if we can. */ | |
4827 | if (phdr_lma >= maxpagesize) | |
4828 | phdr_lma -= maxpagesize; | |
4829 | else | |
4830 | separate_phdr = FALSE; | |
4831 | } | |
4832 | } | |
4833 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4834 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4835 | /* If file and program headers would be placed at the end | |
4836 | of memory then it's probably better to omit them. */ | |
4837 | phdr_in_segment = FALSE; | |
4838 | else if (phdr_lma < wrap_to) | |
4839 | /* If a section wraps around to where we'll be placing | |
4840 | file and program headers, then the headers will be | |
4841 | overwritten. */ | |
4842 | phdr_in_segment = FALSE; | |
4843 | else if (separate_phdr) | |
4844 | { | |
4845 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4846 | if (m == NULL) | |
4847 | goto error_return; | |
4848 | m->p_paddr = phdr_lma; | |
4849 | m->p_vaddr_offset | |
4850 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4851 | m->p_paddr_valid = 1; | |
4852 | *pm = m; | |
4853 | pm = &m->next; | |
4854 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4855 | } |
252b5132 RH |
4856 | } |
4857 | ||
8ded5a0f | 4858 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4859 | { |
8ded5a0f AM |
4860 | asection *hdr; |
4861 | bfd_boolean new_segment; | |
4862 | ||
4863 | hdr = *hdrpp; | |
4864 | ||
4865 | /* See if this section and the last one will fit in the same | |
4866 | segment. */ | |
4867 | ||
4868 | if (last_hdr == NULL) | |
4869 | { | |
4870 | /* If we don't have a segment yet, then we don't need a new | |
4871 | one (we build the last one after this loop). */ | |
4872 | new_segment = FALSE; | |
4873 | } | |
4874 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4875 | { | |
4876 | /* If this section has a different relation between the | |
4877 | virtual address and the load address, then we need a new | |
4878 | segment. */ | |
4879 | new_segment = TRUE; | |
4880 | } | |
b5599592 AM |
4881 | else if (hdr->lma < last_hdr->lma + last_size |
4882 | || last_hdr->lma + last_size < last_hdr->lma) | |
4883 | { | |
4884 | /* If this section has a load address that makes it overlap | |
4885 | the previous section, then we need a new segment. */ | |
4886 | new_segment = TRUE; | |
4887 | } | |
76cb3a89 AM |
4888 | else if ((abfd->flags & D_PAGED) != 0 |
4889 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4890 | == (hdr->lma & -maxpagesize))) | |
4891 | { | |
4892 | /* If we are demand paged then we can't map two disk | |
4893 | pages onto the same memory page. */ | |
4894 | new_segment = FALSE; | |
4895 | } | |
39948a60 NC |
4896 | /* In the next test we have to be careful when last_hdr->lma is close |
4897 | to the end of the address space. If the aligned address wraps | |
4898 | around to the start of the address space, then there are no more | |
4899 | pages left in memory and it is OK to assume that the current | |
4900 | section can be included in the current segment. */ | |
76cb3a89 AM |
4901 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4902 | + maxpagesize > last_hdr->lma) | |
4903 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4904 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4905 | { |
4906 | /* If putting this section in this segment would force us to | |
4907 | skip a page in the segment, then we need a new segment. */ | |
4908 | new_segment = TRUE; | |
4909 | } | |
4910 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4911 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4912 | { |
e5654c0f AM |
4913 | /* We don't want to put a loaded section after a |
4914 | nonloaded (ie. bss style) section in the same segment | |
4915 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4916 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4917 | new_segment = TRUE; |
4918 | } | |
4919 | else if ((abfd->flags & D_PAGED) == 0) | |
4920 | { | |
4921 | /* If the file is not demand paged, which means that we | |
4922 | don't require the sections to be correctly aligned in the | |
4923 | file, then there is no other reason for a new segment. */ | |
4924 | new_segment = FALSE; | |
4925 | } | |
2888249f L |
4926 | else if (info != NULL |
4927 | && info->separate_code | |
4928 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4929 | { | |
4930 | new_segment = TRUE; | |
4931 | } | |
8ded5a0f | 4932 | else if (! writable |
76cb3a89 | 4933 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4934 | { |
4935 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4936 | segment. */ |
8ded5a0f AM |
4937 | new_segment = TRUE; |
4938 | } | |
4939 | else | |
4940 | { | |
4941 | /* Otherwise, we can use the same segment. */ | |
4942 | new_segment = FALSE; | |
4943 | } | |
4944 | ||
2889e75b | 4945 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4946 | if (last_hdr != NULL |
4947 | && info != NULL | |
4948 | && info->callbacks->override_segment_assignment != NULL) | |
4949 | new_segment | |
4950 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4951 | last_hdr, | |
4952 | new_segment); | |
2889e75b | 4953 | |
8ded5a0f AM |
4954 | if (! new_segment) |
4955 | { | |
4956 | if ((hdr->flags & SEC_READONLY) == 0) | |
4957 | writable = TRUE; | |
2888249f L |
4958 | if ((hdr->flags & SEC_CODE) != 0) |
4959 | executable = TRUE; | |
8ded5a0f AM |
4960 | last_hdr = hdr; |
4961 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4962 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4963 | continue; |
4964 | } | |
4965 | ||
4966 | /* We need a new program segment. We must create a new program | |
00bee008 | 4967 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4968 | |
00bee008 | 4969 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4970 | if (m == NULL) |
4971 | goto error_return; | |
4972 | ||
4973 | *pm = m; | |
4974 | pm = &m->next; | |
4975 | ||
252b5132 | 4976 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4977 | writable = TRUE; |
8ded5a0f AM |
4978 | else |
4979 | writable = FALSE; | |
4980 | ||
2888249f L |
4981 | if ((hdr->flags & SEC_CODE) == 0) |
4982 | executable = FALSE; | |
4983 | else | |
4984 | executable = TRUE; | |
4985 | ||
baaff79e JJ |
4986 | last_hdr = hdr; |
4987 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4988 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
00bee008 | 4989 | hdr_index = i; |
8ded5a0f | 4990 | phdr_in_segment = FALSE; |
252b5132 RH |
4991 | } |
4992 | ||
86b2281f AM |
4993 | /* Create a final PT_LOAD program segment, but not if it's just |
4994 | for .tbss. */ | |
4995 | if (last_hdr != NULL | |
00bee008 | 4996 | && (i - hdr_index != 1 |
dbc88fc1 | 4997 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4998 | { |
00bee008 | 4999 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
5000 | if (m == NULL) |
5001 | goto error_return; | |
252b5132 | 5002 | |
8ded5a0f AM |
5003 | *pm = m; |
5004 | pm = &m->next; | |
5005 | } | |
252b5132 | 5006 | |
8ded5a0f AM |
5007 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
5008 | if (dynsec != NULL) | |
5009 | { | |
5010 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
5011 | if (m == NULL) | |
5012 | goto error_return; | |
5013 | *pm = m; | |
5014 | pm = &m->next; | |
5015 | } | |
252b5132 | 5016 | |
23e463ed | 5017 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
5018 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
5019 | because if we link together nonloadable .note sections and | |
5020 | loadable .note sections, we will generate two .note sections | |
23e463ed | 5021 | in the output file. */ |
8ded5a0f AM |
5022 | for (s = abfd->sections; s != NULL; s = s->next) |
5023 | { | |
5024 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 5025 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 5026 | { |
1c5265b5 | 5027 | asection *s2; |
23e463ed | 5028 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5029 | |
5030 | count = 1; | |
23e463ed L |
5031 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5032 | { | |
5033 | if (s2->next->alignment_power == alignment_power | |
5034 | && (s2->next->flags & SEC_LOAD) != 0 | |
5035 | && elf_section_type (s2->next) == SHT_NOTE | |
5036 | && align_power (s2->lma + s2->size, | |
5037 | alignment_power) | |
5038 | == s2->next->lma) | |
5039 | count++; | |
5040 | else | |
5041 | break; | |
5042 | } | |
00bee008 AM |
5043 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5044 | amt += count * sizeof (asection *); | |
a50b1753 | 5045 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5046 | if (m == NULL) |
5047 | goto error_return; | |
5048 | m->next = NULL; | |
5049 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5050 | m->count = count; |
5051 | while (count > 1) | |
5052 | { | |
5053 | m->sections[m->count - count--] = s; | |
5054 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5055 | s = s->next; | |
5056 | } | |
5057 | m->sections[m->count - 1] = s; | |
5058 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5059 | *pm = m; |
5060 | pm = &m->next; | |
5061 | } | |
5062 | if (s->flags & SEC_THREAD_LOCAL) | |
5063 | { | |
5064 | if (! tls_count) | |
5065 | first_tls = s; | |
5066 | tls_count++; | |
5067 | } | |
a91e1603 L |
5068 | if (first_mbind == NULL |
5069 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5070 | first_mbind = s; | |
8ded5a0f | 5071 | } |
252b5132 | 5072 | |
8ded5a0f AM |
5073 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5074 | if (tls_count > 0) | |
5075 | { | |
00bee008 AM |
5076 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5077 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5078 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5079 | if (m == NULL) |
5080 | goto error_return; | |
5081 | m->next = NULL; | |
5082 | m->p_type = PT_TLS; | |
5083 | m->count = tls_count; | |
5084 | /* Mandated PF_R. */ | |
5085 | m->p_flags = PF_R; | |
5086 | m->p_flags_valid = 1; | |
d923cae0 | 5087 | s = first_tls; |
91d6fa6a | 5088 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 5089 | { |
d923cae0 L |
5090 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5091 | { | |
5092 | _bfd_error_handler | |
871b3ab2 | 5093 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5094 | s = first_tls; |
5095 | i = 0; | |
5096 | while (i < (unsigned int) tls_count) | |
5097 | { | |
5098 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5099 | { | |
871b3ab2 | 5100 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5101 | i++; |
5102 | } | |
5103 | else | |
871b3ab2 | 5104 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5105 | s = s->next; |
5106 | } | |
5107 | bfd_set_error (bfd_error_bad_value); | |
5108 | goto error_return; | |
5109 | } | |
5110 | m->sections[i] = s; | |
5111 | s = s->next; | |
8ded5a0f | 5112 | } |
252b5132 | 5113 | |
8ded5a0f AM |
5114 | *pm = m; |
5115 | pm = &m->next; | |
5116 | } | |
252b5132 | 5117 | |
df3a023b AM |
5118 | if (first_mbind |
5119 | && (abfd->flags & D_PAGED) != 0 | |
5120 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5121 | for (s = first_mbind; s != NULL; s = s->next) |
5122 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5123 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5124 | { |
5125 | /* Mandated PF_R. */ | |
5126 | unsigned long p_flags = PF_R; | |
5127 | if ((s->flags & SEC_READONLY) == 0) | |
5128 | p_flags |= PF_W; | |
5129 | if ((s->flags & SEC_CODE) != 0) | |
5130 | p_flags |= PF_X; | |
5131 | ||
5132 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5133 | m = bfd_zalloc (abfd, amt); | |
5134 | if (m == NULL) | |
5135 | goto error_return; | |
5136 | m->next = NULL; | |
5137 | m->p_type = (PT_GNU_MBIND_LO | |
5138 | + elf_section_data (s)->this_hdr.sh_info); | |
5139 | m->count = 1; | |
5140 | m->p_flags_valid = 1; | |
5141 | m->sections[0] = s; | |
5142 | m->p_flags = p_flags; | |
5143 | ||
5144 | *pm = m; | |
5145 | pm = &m->next; | |
5146 | } | |
5147 | ||
0a59decb L |
5148 | s = bfd_get_section_by_name (abfd, |
5149 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5150 | if (s != NULL && s->size != 0) | |
5151 | { | |
5152 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5153 | m = bfd_zalloc (abfd, amt); | |
5154 | if (m == NULL) | |
5155 | goto error_return; | |
5156 | m->next = NULL; | |
5157 | m->p_type = PT_GNU_PROPERTY; | |
5158 | m->count = 1; | |
5159 | m->p_flags_valid = 1; | |
5160 | m->sections[0] = s; | |
5161 | m->p_flags = PF_R; | |
5162 | *pm = m; | |
5163 | pm = &m->next; | |
5164 | } | |
5165 | ||
8ded5a0f AM |
5166 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5167 | segment. */ | |
12bd6957 | 5168 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5169 | if (eh_frame_hdr != NULL |
5170 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5171 | { |
dc810e39 | 5172 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5173 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5174 | if (m == NULL) |
5175 | goto error_return; | |
5176 | m->next = NULL; | |
8ded5a0f | 5177 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5178 | m->count = 1; |
8ded5a0f | 5179 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5180 | |
5181 | *pm = m; | |
5182 | pm = &m->next; | |
5183 | } | |
13ae64f3 | 5184 | |
12bd6957 | 5185 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5186 | { |
8ded5a0f | 5187 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5188 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5189 | if (m == NULL) |
5190 | goto error_return; | |
5191 | m->next = NULL; | |
2b05f1b7 | 5192 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5193 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5194 | m->p_align = bed->stack_align; |
8ded5a0f | 5195 | m->p_flags_valid = 1; |
04c3a755 NS |
5196 | m->p_align_valid = m->p_align != 0; |
5197 | if (info->stacksize > 0) | |
5198 | { | |
5199 | m->p_size = info->stacksize; | |
5200 | m->p_size_valid = 1; | |
5201 | } | |
252b5132 | 5202 | |
8ded5a0f AM |
5203 | *pm = m; |
5204 | pm = &m->next; | |
5205 | } | |
65765700 | 5206 | |
ceae84aa | 5207 | if (info != NULL && info->relro) |
8ded5a0f | 5208 | { |
f210dcff L |
5209 | for (m = mfirst; m != NULL; m = m->next) |
5210 | { | |
3832a4d8 AM |
5211 | if (m->p_type == PT_LOAD |
5212 | && m->count != 0 | |
5213 | && m->sections[0]->vma >= info->relro_start | |
5214 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5215 | { |
3832a4d8 AM |
5216 | i = m->count; |
5217 | while (--i != (unsigned) -1) | |
5218 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5219 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5220 | break; | |
5221 | ||
43a8475c | 5222 | if (i != (unsigned) -1) |
f210dcff L |
5223 | break; |
5224 | } | |
be01b344 | 5225 | } |
f210dcff L |
5226 | |
5227 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5228 | if (m != NULL) | |
5229 | { | |
5230 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5231 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5232 | if (m == NULL) |
5233 | goto error_return; | |
5234 | m->next = NULL; | |
5235 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5236 | *pm = m; |
5237 | pm = &m->next; | |
5238 | } | |
8ded5a0f | 5239 | } |
9ee5e499 | 5240 | |
8ded5a0f | 5241 | free (sections); |
12bd6957 | 5242 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5243 | } |
5244 | ||
3dea8fca | 5245 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5246 | return FALSE; |
8c37241b | 5247 | |
12bd6957 | 5248 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5249 | ++count; |
12bd6957 | 5250 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5251 | |
b34976b6 | 5252 | return TRUE; |
252b5132 RH |
5253 | |
5254 | error_return: | |
5255 | if (sections != NULL) | |
5256 | free (sections); | |
b34976b6 | 5257 | return FALSE; |
252b5132 RH |
5258 | } |
5259 | ||
5260 | /* Sort sections by address. */ | |
5261 | ||
5262 | static int | |
217aa764 | 5263 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5264 | { |
5265 | const asection *sec1 = *(const asection **) arg1; | |
5266 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5267 | bfd_size_type size1, size2; |
252b5132 RH |
5268 | |
5269 | /* Sort by LMA first, since this is the address used to | |
5270 | place the section into a segment. */ | |
5271 | if (sec1->lma < sec2->lma) | |
5272 | return -1; | |
5273 | else if (sec1->lma > sec2->lma) | |
5274 | return 1; | |
5275 | ||
5276 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5277 | the same, and this will do nothing. */ | |
5278 | if (sec1->vma < sec2->vma) | |
5279 | return -1; | |
5280 | else if (sec1->vma > sec2->vma) | |
5281 | return 1; | |
5282 | ||
5283 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5284 | ||
07c6e936 | 5285 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5286 | |
5287 | if (TOEND (sec1)) | |
5288 | { | |
48db3297 | 5289 | if (!TOEND (sec2)) |
252b5132 RH |
5290 | return 1; |
5291 | } | |
00a7cdc5 | 5292 | else if (TOEND (sec2)) |
252b5132 RH |
5293 | return -1; |
5294 | ||
5295 | #undef TOEND | |
5296 | ||
00a7cdc5 NC |
5297 | /* Sort by size, to put zero sized sections |
5298 | before others at the same address. */ | |
252b5132 | 5299 | |
eea6121a AM |
5300 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5301 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5302 | |
5303 | if (size1 < size2) | |
252b5132 | 5304 | return -1; |
eecdbe52 | 5305 | if (size1 > size2) |
252b5132 RH |
5306 | return 1; |
5307 | ||
5308 | return sec1->target_index - sec2->target_index; | |
5309 | } | |
5310 | ||
30fe1832 AM |
5311 | /* This qsort comparison functions sorts PT_LOAD segments first and |
5312 | by p_paddr, for assign_file_positions_for_load_sections. */ | |
5313 | ||
5314 | static int | |
5315 | elf_sort_segments (const void *arg1, const void *arg2) | |
5316 | { | |
5317 | const struct elf_segment_map *m1 = *(const struct elf_segment_map **) arg1; | |
5318 | const struct elf_segment_map *m2 = *(const struct elf_segment_map **) arg2; | |
5319 | ||
5320 | if (m1->p_type != m2->p_type) | |
5321 | { | |
5322 | if (m1->p_type == PT_NULL) | |
5323 | return 1; | |
5324 | if (m2->p_type == PT_NULL) | |
5325 | return -1; | |
5326 | return m1->p_type < m2->p_type ? -1 : 1; | |
5327 | } | |
5328 | if (m1->includes_filehdr != m2->includes_filehdr) | |
5329 | return m1->includes_filehdr ? -1 : 1; | |
5330 | if (m1->no_sort_lma != m2->no_sort_lma) | |
5331 | return m1->no_sort_lma ? -1 : 1; | |
5332 | if (m1->p_type == PT_LOAD && !m1->no_sort_lma) | |
5333 | { | |
5334 | bfd_vma lma1, lma2; | |
5335 | lma1 = 0; | |
5336 | if (m1->p_paddr_valid) | |
5337 | lma1 = m1->p_paddr; | |
5338 | else if (m1->count != 0) | |
5339 | lma1 = m1->sections[0]->lma + m1->p_vaddr_offset; | |
5340 | lma2 = 0; | |
5341 | if (m2->p_paddr_valid) | |
5342 | lma2 = m2->p_paddr; | |
5343 | else if (m2->count != 0) | |
5344 | lma2 = m2->sections[0]->lma + m2->p_vaddr_offset; | |
5345 | if (lma1 != lma2) | |
5346 | return lma1 < lma2 ? -1 : 1; | |
5347 | } | |
5348 | if (m1->idx != m2->idx) | |
5349 | return m1->idx < m2->idx ? -1 : 1; | |
5350 | return 0; | |
5351 | } | |
5352 | ||
340b6d91 AC |
5353 | /* Ian Lance Taylor writes: |
5354 | ||
5355 | We shouldn't be using % with a negative signed number. That's just | |
5356 | not good. We have to make sure either that the number is not | |
5357 | negative, or that the number has an unsigned type. When the types | |
5358 | are all the same size they wind up as unsigned. When file_ptr is a | |
5359 | larger signed type, the arithmetic winds up as signed long long, | |
5360 | which is wrong. | |
5361 | ||
5362 | What we're trying to say here is something like ``increase OFF by | |
5363 | the least amount that will cause it to be equal to the VMA modulo | |
5364 | the page size.'' */ | |
5365 | /* In other words, something like: | |
5366 | ||
5367 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5368 | off_offset = off % bed->maxpagesize; | |
5369 | if (vma_offset < off_offset) | |
5370 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5371 | else | |
5372 | adjustment = vma_offset - off_offset; | |
08a40648 | 5373 | |
de194d85 | 5374 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5375 | |
5376 | static file_ptr | |
5377 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5378 | { | |
dc9155b2 NC |
5379 | /* PR binutils/16199: Handle an alignment of zero. */ |
5380 | if (maxpagesize == 0) | |
5381 | maxpagesize = 1; | |
340b6d91 AC |
5382 | return ((vma - off) % maxpagesize); |
5383 | } | |
5384 | ||
6d33f217 L |
5385 | static void |
5386 | print_segment_map (const struct elf_segment_map *m) | |
5387 | { | |
5388 | unsigned int j; | |
5389 | const char *pt = get_segment_type (m->p_type); | |
5390 | char buf[32]; | |
5391 | ||
5392 | if (pt == NULL) | |
5393 | { | |
5394 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5395 | sprintf (buf, "LOPROC+%7.7x", | |
5396 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5397 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5398 | sprintf (buf, "LOOS+%7.7x", | |
5399 | (unsigned int) (m->p_type - PT_LOOS)); | |
5400 | else | |
5401 | snprintf (buf, sizeof (buf), "%8.8x", | |
5402 | (unsigned int) m->p_type); | |
5403 | pt = buf; | |
5404 | } | |
4a97a0e5 | 5405 | fflush (stdout); |
6d33f217 L |
5406 | fprintf (stderr, "%s:", pt); |
5407 | for (j = 0; j < m->count; j++) | |
5408 | fprintf (stderr, " %s", m->sections [j]->name); | |
5409 | putc ('\n',stderr); | |
4a97a0e5 | 5410 | fflush (stderr); |
6d33f217 L |
5411 | } |
5412 | ||
32812159 AM |
5413 | static bfd_boolean |
5414 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5415 | { | |
5416 | void *buf; | |
5417 | bfd_boolean ret; | |
5418 | ||
5419 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5420 | return FALSE; | |
5421 | buf = bfd_zmalloc (len); | |
5422 | if (buf == NULL) | |
5423 | return FALSE; | |
5424 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5425 | free (buf); | |
5426 | return ret; | |
5427 | } | |
5428 | ||
252b5132 RH |
5429 | /* Assign file positions to the sections based on the mapping from |
5430 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5431 | the file header. */ |
252b5132 | 5432 | |
b34976b6 | 5433 | static bfd_boolean |
f3520d2f AM |
5434 | assign_file_positions_for_load_sections (bfd *abfd, |
5435 | struct bfd_link_info *link_info) | |
252b5132 RH |
5436 | { |
5437 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5438 | struct elf_segment_map *m; |
30fe1832 | 5439 | struct elf_segment_map *phdr_load_seg; |
252b5132 | 5440 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5441 | Elf_Internal_Phdr *p; |
02bf8d82 | 5442 | file_ptr off; |
3f570048 | 5443 | bfd_size_type maxpagesize; |
30fe1832 | 5444 | unsigned int alloc, actual; |
0920dee7 | 5445 | unsigned int i, j; |
30fe1832 | 5446 | struct elf_segment_map **sorted_seg_map; |
252b5132 | 5447 | |
e36284ab | 5448 | if (link_info == NULL |
ceae84aa | 5449 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5450 | return FALSE; |
252b5132 | 5451 | |
8ded5a0f | 5452 | alloc = 0; |
12bd6957 | 5453 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
30fe1832 | 5454 | m->idx = alloc++; |
252b5132 | 5455 | |
82f2dbf7 NC |
5456 | if (alloc) |
5457 | { | |
5458 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5459 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5460 | } | |
5461 | else | |
5462 | { | |
5463 | /* PR binutils/12467. */ | |
5464 | elf_elfheader (abfd)->e_phoff = 0; | |
5465 | elf_elfheader (abfd)->e_phentsize = 0; | |
5466 | } | |
d324f6d6 | 5467 | |
8ded5a0f | 5468 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5469 | |
12bd6957 | 5470 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
30fe1832 AM |
5471 | { |
5472 | actual = alloc; | |
5473 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
5474 | } | |
8ded5a0f | 5475 | else |
30fe1832 AM |
5476 | { |
5477 | actual = elf_program_header_size (abfd) / bed->s->sizeof_phdr; | |
5478 | BFD_ASSERT (elf_program_header_size (abfd) | |
5479 | == actual * bed->s->sizeof_phdr); | |
5480 | BFD_ASSERT (actual >= alloc); | |
5481 | } | |
252b5132 RH |
5482 | |
5483 | if (alloc == 0) | |
f3520d2f | 5484 | { |
12bd6957 | 5485 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5486 | return TRUE; |
f3520d2f | 5487 | } |
252b5132 | 5488 | |
12bd6957 | 5489 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5490 | see assign_file_positions_except_relocs, so make sure we have |
5491 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5492 | The variable alloc contains the computed need, while |
5493 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5494 | layout. |
5495 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5496 | where the layout is forced to according to a larger size in the | |
5497 | last iterations for the testcase ld-elf/header. */ | |
30fe1832 AM |
5498 | phdrs = bfd_zalloc (abfd, (actual * sizeof (*phdrs) |
5499 | + alloc * sizeof (*sorted_seg_map))); | |
5500 | sorted_seg_map = (struct elf_segment_map **) (phdrs + actual); | |
f3520d2f | 5501 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5502 | if (phdrs == NULL) |
b34976b6 | 5503 | return FALSE; |
252b5132 | 5504 | |
30fe1832 | 5505 | for (m = elf_seg_map (abfd), j = 0; m != NULL; m = m->next, j++) |
252b5132 | 5506 | { |
30fe1832 | 5507 | sorted_seg_map[j] = m; |
252b5132 | 5508 | /* If elf_segment_map is not from map_sections_to_segments, the |
08a40648 | 5509 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5510 | not be done to the PT_NOTE section of a corefile, which may |
5511 | contain several pseudo-sections artificially created by bfd. | |
5512 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5513 | if (m->count > 1 |
5514 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5515 | && m->p_type == PT_NOTE)) |
48db3297 AM |
5516 | { |
5517 | for (i = 0; i < m->count; i++) | |
5518 | m->sections[i]->target_index = i; | |
5519 | qsort (m->sections, (size_t) m->count, sizeof (asection *), | |
5520 | elf_sort_sections); | |
5521 | } | |
30fe1832 AM |
5522 | } |
5523 | if (alloc > 1) | |
5524 | qsort (sorted_seg_map, alloc, sizeof (*sorted_seg_map), | |
5525 | elf_sort_segments); | |
5526 | ||
5527 | maxpagesize = 1; | |
5528 | if ((abfd->flags & D_PAGED) != 0) | |
5529 | maxpagesize = bed->maxpagesize; | |
5530 | ||
5531 | /* Sections must map to file offsets past the ELF file header. */ | |
5532 | off = bed->s->sizeof_ehdr; | |
5533 | /* And if one of the PT_LOAD headers doesn't include the program | |
5534 | headers then we'll be mapping program headers in the usual | |
5535 | position after the ELF file header. */ | |
5536 | phdr_load_seg = NULL; | |
5537 | for (j = 0; j < alloc; j++) | |
5538 | { | |
5539 | m = sorted_seg_map[j]; | |
5540 | if (m->p_type != PT_LOAD) | |
5541 | break; | |
5542 | if (m->includes_phdrs) | |
5543 | { | |
5544 | phdr_load_seg = m; | |
5545 | break; | |
5546 | } | |
5547 | } | |
5548 | if (phdr_load_seg == NULL) | |
5549 | off += actual * bed->s->sizeof_phdr; | |
5550 | ||
5551 | for (j = 0; j < alloc; j++) | |
5552 | { | |
5553 | asection **secpp; | |
5554 | bfd_vma off_adjust; | |
5555 | bfd_boolean no_contents; | |
252b5132 | 5556 | |
b301b248 AM |
5557 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5558 | number of sections with contents contributing to both p_filesz | |
5559 | and p_memsz, followed by a number of sections with no contents | |
5560 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5561 | available file offset for PT_LOAD and PT_NOTE segments. */ |
30fe1832 AM |
5562 | m = sorted_seg_map[j]; |
5563 | p = phdrs + m->idx; | |
252b5132 | 5564 | p->p_type = m->p_type; |
28a7f3e7 | 5565 | p->p_flags = m->p_flags; |
252b5132 | 5566 | |
3f570048 | 5567 | if (m->count == 0) |
5d695627 | 5568 | p->p_vaddr = m->p_vaddr_offset; |
3f570048 | 5569 | else |
5d695627 | 5570 | p->p_vaddr = m->sections[0]->vma + m->p_vaddr_offset; |
3f570048 AM |
5571 | |
5572 | if (m->p_paddr_valid) | |
5573 | p->p_paddr = m->p_paddr; | |
5574 | else if (m->count == 0) | |
5575 | p->p_paddr = 0; | |
5576 | else | |
5d695627 | 5577 | p->p_paddr = m->sections[0]->lma + m->p_vaddr_offset; |
3f570048 AM |
5578 | |
5579 | if (p->p_type == PT_LOAD | |
5580 | && (abfd->flags & D_PAGED) != 0) | |
5581 | { | |
5582 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5583 | the maximum page size. When copying an executable with | |
5584 | objcopy, we set m->p_align from the input file. Use this | |
5585 | value for maxpagesize rather than bed->maxpagesize, which | |
5586 | may be different. Note that we use maxpagesize for PT_TLS | |
5587 | segment alignment later in this function, so we are relying | |
5588 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5589 | segment. */ | |
5590 | if (m->p_align_valid) | |
5591 | maxpagesize = m->p_align; | |
5592 | ||
5593 | p->p_align = maxpagesize; | |
5594 | } | |
3271a814 NS |
5595 | else if (m->p_align_valid) |
5596 | p->p_align = m->p_align; | |
e970b90a DJ |
5597 | else if (m->count == 0) |
5598 | p->p_align = 1 << bed->s->log_file_align; | |
30fe1832 AM |
5599 | |
5600 | if (m == phdr_load_seg) | |
5601 | { | |
5602 | if (!m->includes_filehdr) | |
5603 | p->p_offset = off; | |
5604 | off += actual * bed->s->sizeof_phdr; | |
5605 | } | |
3f570048 | 5606 | |
bf988460 AM |
5607 | no_contents = FALSE; |
5608 | off_adjust = 0; | |
252b5132 | 5609 | if (p->p_type == PT_LOAD |
b301b248 | 5610 | && m->count > 0) |
252b5132 | 5611 | { |
b301b248 | 5612 | bfd_size_type align; |
a49e53ed | 5613 | unsigned int align_power = 0; |
b301b248 | 5614 | |
3271a814 NS |
5615 | if (m->p_align_valid) |
5616 | align = p->p_align; | |
5617 | else | |
252b5132 | 5618 | { |
3271a814 NS |
5619 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5620 | { | |
5621 | unsigned int secalign; | |
08a40648 | 5622 | |
fd361982 | 5623 | secalign = bfd_section_alignment (*secpp); |
3271a814 NS |
5624 | if (secalign > align_power) |
5625 | align_power = secalign; | |
5626 | } | |
5627 | align = (bfd_size_type) 1 << align_power; | |
5628 | if (align < maxpagesize) | |
5629 | align = maxpagesize; | |
b301b248 | 5630 | } |
252b5132 | 5631 | |
02bf8d82 AM |
5632 | for (i = 0; i < m->count; i++) |
5633 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5634 | /* If we aren't making room for this section, then | |
5635 | it must be SHT_NOBITS regardless of what we've | |
5636 | set via struct bfd_elf_special_section. */ | |
5637 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5638 | ||
bf988460 | 5639 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5640 | sections. */ |
5641 | no_contents = TRUE; | |
5642 | for (i = 0; i < m->count; i++) | |
5643 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5644 | { | |
5645 | no_contents = FALSE; | |
5646 | break; | |
5647 | } | |
bf988460 | 5648 | |
85cfcbfb | 5649 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5650 | |
5651 | /* Broken hardware and/or kernel require that files do not | |
5652 | map the same page with different permissions on some hppa | |
5653 | processors. */ | |
30fe1832 AM |
5654 | if (j != 0 |
5655 | && (abfd->flags & D_PAGED) != 0 | |
a8c75b76 AM |
5656 | && bed->no_page_alias |
5657 | && (off & (maxpagesize - 1)) != 0 | |
5658 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5659 | off_adjust += maxpagesize; | |
bf988460 AM |
5660 | off += off_adjust; |
5661 | if (no_contents) | |
5662 | { | |
5663 | /* We shouldn't need to align the segment on disk since | |
5664 | the segment doesn't need file space, but the gABI | |
5665 | arguably requires the alignment and glibc ld.so | |
5666 | checks it. So to comply with the alignment | |
5667 | requirement but not waste file space, we adjust | |
5668 | p_offset for just this segment. (OFF_ADJUST is | |
5669 | subtracted from OFF later.) This may put p_offset | |
5670 | past the end of file, but that shouldn't matter. */ | |
5671 | } | |
5672 | else | |
5673 | off_adjust = 0; | |
252b5132 | 5674 | } |
b1a6d0b1 NC |
5675 | /* Make sure the .dynamic section is the first section in the |
5676 | PT_DYNAMIC segment. */ | |
5677 | else if (p->p_type == PT_DYNAMIC | |
5678 | && m->count > 1 | |
5679 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5680 | { | |
5681 | _bfd_error_handler | |
871b3ab2 | 5682 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5683 | " is not the .dynamic section"), |
b301b248 | 5684 | abfd); |
b1a6d0b1 NC |
5685 | bfd_set_error (bfd_error_bad_value); |
5686 | return FALSE; | |
5687 | } | |
3f001e84 JK |
5688 | /* Set the note section type to SHT_NOTE. */ |
5689 | else if (p->p_type == PT_NOTE) | |
5690 | for (i = 0; i < m->count; i++) | |
5691 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5692 | |
252b5132 RH |
5693 | if (m->includes_filehdr) |
5694 | { | |
bf988460 | 5695 | if (!m->p_flags_valid) |
252b5132 | 5696 | p->p_flags |= PF_R; |
252b5132 RH |
5697 | p->p_filesz = bed->s->sizeof_ehdr; |
5698 | p->p_memsz = bed->s->sizeof_ehdr; | |
30fe1832 | 5699 | if (p->p_type == PT_LOAD) |
252b5132 | 5700 | { |
30fe1832 | 5701 | if (m->count > 0) |
252b5132 | 5702 | { |
30fe1832 AM |
5703 | if (p->p_vaddr < (bfd_vma) off |
5704 | || (!m->p_paddr_valid | |
5705 | && p->p_paddr < (bfd_vma) off)) | |
5706 | { | |
5707 | _bfd_error_handler | |
5708 | (_("%pB: not enough room for program headers," | |
5709 | " try linking with -N"), | |
5710 | abfd); | |
5711 | bfd_set_error (bfd_error_bad_value); | |
5712 | return FALSE; | |
5713 | } | |
5714 | p->p_vaddr -= off; | |
5715 | if (!m->p_paddr_valid) | |
5716 | p->p_paddr -= off; | |
252b5132 | 5717 | } |
30fe1832 AM |
5718 | } |
5719 | else if (sorted_seg_map[0]->includes_filehdr) | |
5720 | { | |
5721 | Elf_Internal_Phdr *filehdr = phdrs + sorted_seg_map[0]->idx; | |
5722 | p->p_vaddr = filehdr->p_vaddr; | |
bf988460 | 5723 | if (!m->p_paddr_valid) |
30fe1832 | 5724 | p->p_paddr = filehdr->p_paddr; |
252b5132 | 5725 | } |
252b5132 RH |
5726 | } |
5727 | ||
5728 | if (m->includes_phdrs) | |
5729 | { | |
bf988460 | 5730 | if (!m->p_flags_valid) |
252b5132 | 5731 | p->p_flags |= PF_R; |
30fe1832 AM |
5732 | p->p_filesz += actual * bed->s->sizeof_phdr; |
5733 | p->p_memsz += actual * bed->s->sizeof_phdr; | |
f3520d2f | 5734 | if (!m->includes_filehdr) |
252b5132 | 5735 | { |
30fe1832 | 5736 | if (p->p_type == PT_LOAD) |
252b5132 | 5737 | { |
30fe1832 AM |
5738 | elf_elfheader (abfd)->e_phoff = p->p_offset; |
5739 | if (m->count > 0) | |
5740 | { | |
5741 | p->p_vaddr -= off - p->p_offset; | |
5742 | if (!m->p_paddr_valid) | |
5743 | p->p_paddr -= off - p->p_offset; | |
5744 | } | |
5745 | } | |
5746 | else if (phdr_load_seg != NULL) | |
5747 | { | |
5748 | Elf_Internal_Phdr *phdr = phdrs + phdr_load_seg->idx; | |
5749 | bfd_vma phdr_off = 0; | |
5750 | if (phdr_load_seg->includes_filehdr) | |
5751 | phdr_off = bed->s->sizeof_ehdr; | |
5752 | p->p_vaddr = phdr->p_vaddr + phdr_off; | |
bf988460 | 5753 | if (!m->p_paddr_valid) |
30fe1832 AM |
5754 | p->p_paddr = phdr->p_paddr + phdr_off; |
5755 | p->p_offset = phdr->p_offset + phdr_off; | |
252b5132 | 5756 | } |
30fe1832 AM |
5757 | else |
5758 | p->p_offset = bed->s->sizeof_ehdr; | |
2b0bc088 | 5759 | } |
252b5132 RH |
5760 | } |
5761 | ||
5762 | if (p->p_type == PT_LOAD | |
5763 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5764 | { | |
bf988460 | 5765 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5766 | p->p_offset = off; |
252b5132 RH |
5767 | else |
5768 | { | |
5769 | file_ptr adjust; | |
5770 | ||
5771 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5772 | if (!no_contents) |
5773 | p->p_filesz += adjust; | |
252b5132 RH |
5774 | p->p_memsz += adjust; |
5775 | } | |
5776 | } | |
5777 | ||
1ea63fd2 AM |
5778 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5779 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5780 | core files, for sections in PT_NOTE segments. | |
5781 | assign_file_positions_for_non_load_sections will set filepos | |
5782 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5783 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5784 | { | |
5785 | asection *sec; | |
252b5132 | 5786 | bfd_size_type align; |
627b32bc | 5787 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5788 | |
5789 | sec = *secpp; | |
02bf8d82 | 5790 | this_hdr = &elf_section_data (sec)->this_hdr; |
fd361982 | 5791 | align = (bfd_size_type) 1 << bfd_section_alignment (sec); |
252b5132 | 5792 | |
88967714 AM |
5793 | if ((p->p_type == PT_LOAD |
5794 | || p->p_type == PT_TLS) | |
5795 | && (this_hdr->sh_type != SHT_NOBITS | |
5796 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5797 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5798 | || p->p_type == PT_TLS)))) | |
252b5132 | 5799 | { |
b5599592 AM |
5800 | bfd_vma p_start = p->p_paddr; |
5801 | bfd_vma p_end = p_start + p->p_memsz; | |
5802 | bfd_vma s_start = sec->lma; | |
5803 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5804 | |
a2d1e028 L |
5805 | if (adjust != 0 |
5806 | && (s_start < p_end | |
5807 | || p_end < p_start)) | |
252b5132 | 5808 | { |
4eca0228 | 5809 | _bfd_error_handler |
695344c0 | 5810 | /* xgettext:c-format */ |
2dcf00ce AM |
5811 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5812 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5813 | adjust = 0; |
b5599592 | 5814 | sec->lma = p_end; |
1cfb7d1e | 5815 | } |
3ac9b6c9 | 5816 | p->p_memsz += adjust; |
1cfb7d1e | 5817 | |
88967714 AM |
5818 | if (this_hdr->sh_type != SHT_NOBITS) |
5819 | { | |
30fe1832 | 5820 | if (p->p_type == PT_LOAD) |
32812159 | 5821 | { |
30fe1832 AM |
5822 | if (p->p_filesz + adjust < p->p_memsz) |
5823 | { | |
5824 | /* We have a PROGBITS section following NOBITS ones. | |
5825 | Allocate file space for the NOBITS section(s) and | |
5826 | zero it. */ | |
5827 | adjust = p->p_memsz - p->p_filesz; | |
5828 | if (!write_zeros (abfd, off, adjust)) | |
5829 | return FALSE; | |
5830 | } | |
5831 | off += adjust; | |
32812159 | 5832 | } |
88967714 | 5833 | p->p_filesz += adjust; |
252b5132 | 5834 | } |
252b5132 RH |
5835 | } |
5836 | ||
5837 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5838 | { | |
b301b248 AM |
5839 | /* The section at i == 0 is the one that actually contains |
5840 | everything. */ | |
4a938328 MS |
5841 | if (i == 0) |
5842 | { | |
627b32bc | 5843 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5844 | off += this_hdr->sh_size; |
5845 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5846 | p->p_memsz = 0; |
5847 | p->p_align = 1; | |
252b5132 | 5848 | } |
4a938328 | 5849 | else |
252b5132 | 5850 | { |
b301b248 | 5851 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5852 | sec->filepos = 0; |
eea6121a | 5853 | sec->size = 0; |
b301b248 AM |
5854 | sec->flags = 0; |
5855 | continue; | |
252b5132 | 5856 | } |
252b5132 RH |
5857 | } |
5858 | else | |
5859 | { | |
1e951488 | 5860 | if (p->p_type == PT_LOAD) |
b301b248 | 5861 | { |
1e951488 AM |
5862 | this_hdr->sh_offset = sec->filepos = off; |
5863 | if (this_hdr->sh_type != SHT_NOBITS) | |
5864 | off += this_hdr->sh_size; | |
5865 | } | |
5866 | else if (this_hdr->sh_type == SHT_NOBITS | |
5867 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5868 | && this_hdr->sh_offset == 0) | |
5869 | { | |
5870 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5871 | (See _bfd_elf_map_sections_to_segments "Create a | |
5872 | final PT_LOAD".) Set sh_offset to the value it | |
5873 | would have if we had created a zero p_filesz and | |
5874 | p_memsz PT_LOAD header for the section. This | |
5875 | also makes the PT_TLS header have the same | |
5876 | p_offset value. */ | |
5877 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5878 | off, align); | |
5879 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5880 | } |
252b5132 | 5881 | |
02bf8d82 | 5882 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5883 | { |
6a3cd2b4 | 5884 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5885 | /* A load section without SHF_ALLOC is something like |
5886 | a note section in a PT_NOTE segment. These take | |
5887 | file space but are not loaded into memory. */ | |
5888 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5889 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5890 | } |
6a3cd2b4 | 5891 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5892 | { |
6a3cd2b4 AM |
5893 | if (p->p_type == PT_TLS) |
5894 | p->p_memsz += this_hdr->sh_size; | |
5895 | ||
5896 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5897 | normal segments. */ | |
5898 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5899 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5900 | } |
5901 | ||
b10a8ae0 L |
5902 | if (align > p->p_align |
5903 | && !m->p_align_valid | |
5904 | && (p->p_type != PT_LOAD | |
5905 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5906 | p->p_align = align; |
5907 | } | |
5908 | ||
bf988460 | 5909 | if (!m->p_flags_valid) |
252b5132 RH |
5910 | { |
5911 | p->p_flags |= PF_R; | |
02bf8d82 | 5912 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5913 | p->p_flags |= PF_X; |
02bf8d82 | 5914 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5915 | p->p_flags |= PF_W; |
5916 | } | |
5917 | } | |
43a8475c | 5918 | |
bf988460 | 5919 | off -= off_adjust; |
0920dee7 | 5920 | |
30fe1832 AM |
5921 | /* PR ld/20815 - Check that the program header segment, if |
5922 | present, will be loaded into memory. */ | |
5923 | if (p->p_type == PT_PHDR | |
5924 | && phdr_load_seg == NULL | |
5925 | && !(bed->elf_backend_allow_non_load_phdr != NULL | |
5926 | && bed->elf_backend_allow_non_load_phdr (abfd, phdrs, alloc))) | |
5927 | { | |
5928 | /* The fix for this error is usually to edit the linker script being | |
5929 | used and set up the program headers manually. Either that or | |
5930 | leave room for the headers at the start of the SECTIONS. */ | |
5931 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" | |
5932 | " by LOAD segment"), | |
5933 | abfd); | |
5934 | return FALSE; | |
5935 | } | |
5936 | ||
7c928300 AM |
5937 | /* Check that all sections are in a PT_LOAD segment. |
5938 | Don't check funky gdb generated core files. */ | |
5939 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5940 | { |
5941 | bfd_boolean check_vma = TRUE; | |
5942 | ||
5943 | for (i = 1; i < m->count; i++) | |
5944 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5945 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5946 | ->this_hdr), p) != 0 | |
5947 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5948 | ->this_hdr), p) != 0) | |
0920dee7 | 5949 | { |
9a83a553 AM |
5950 | /* Looks like we have overlays packed into the segment. */ |
5951 | check_vma = FALSE; | |
5952 | break; | |
0920dee7 | 5953 | } |
9a83a553 AM |
5954 | |
5955 | for (i = 0; i < m->count; i++) | |
5956 | { | |
5957 | Elf_Internal_Shdr *this_hdr; | |
5958 | asection *sec; | |
5959 | ||
5960 | sec = m->sections[i]; | |
5961 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5962 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5963 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5964 | { |
4eca0228 | 5965 | _bfd_error_handler |
695344c0 | 5966 | /* xgettext:c-format */ |
871b3ab2 | 5967 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5968 | abfd, sec, j); |
5969 | print_segment_map (m); | |
5970 | } | |
5971 | } | |
5972 | } | |
252b5132 RH |
5973 | } |
5974 | ||
12bd6957 | 5975 | elf_next_file_pos (abfd) = off; |
30fe1832 AM |
5976 | |
5977 | if (link_info != NULL | |
5978 | && phdr_load_seg != NULL | |
5979 | && phdr_load_seg->includes_filehdr) | |
5980 | { | |
5981 | /* There is a segment that contains both the file headers and the | |
5982 | program headers, so provide a symbol __ehdr_start pointing there. | |
5983 | A program can use this to examine itself robustly. */ | |
5984 | ||
5985 | struct elf_link_hash_entry *hash | |
5986 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5987 | FALSE, FALSE, TRUE); | |
5988 | /* If the symbol was referenced and not defined, define it. */ | |
5989 | if (hash != NULL | |
5990 | && (hash->root.type == bfd_link_hash_new | |
5991 | || hash->root.type == bfd_link_hash_undefined | |
5992 | || hash->root.type == bfd_link_hash_undefweak | |
5993 | || hash->root.type == bfd_link_hash_common)) | |
5994 | { | |
5995 | asection *s = NULL; | |
5996 | bfd_vma filehdr_vaddr = phdrs[phdr_load_seg->idx].p_vaddr; | |
5997 | ||
5998 | if (phdr_load_seg->count != 0) | |
5999 | /* The segment contains sections, so use the first one. */ | |
6000 | s = phdr_load_seg->sections[0]; | |
6001 | else | |
6002 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
6003 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) | |
6004 | if (m->p_type == PT_LOAD && m->count != 0) | |
6005 | { | |
6006 | s = m->sections[0]; | |
6007 | break; | |
6008 | } | |
6009 | ||
6010 | if (s != NULL) | |
6011 | { | |
6012 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6013 | hash->root.u.def.section = s; | |
6014 | } | |
6015 | else | |
6016 | { | |
6017 | hash->root.u.def.value = filehdr_vaddr; | |
6018 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6019 | } | |
6020 | ||
6021 | hash->root.type = bfd_link_hash_defined; | |
6022 | hash->def_regular = 1; | |
6023 | hash->non_elf = 0; | |
6024 | } | |
6025 | } | |
6026 | ||
f3520d2f AM |
6027 | return TRUE; |
6028 | } | |
6029 | ||
1faa385f NC |
6030 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
6031 | is no defined method for detecting such files, so we have to | |
6032 | use heuristics instead. */ | |
6033 | ||
6034 | bfd_boolean | |
6035 | is_debuginfo_file (bfd *abfd) | |
6036 | { | |
6037 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
6038 | return FALSE; | |
6039 | ||
6040 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
6041 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
6042 | Elf_Internal_Shdr **headerp; | |
6043 | ||
6044 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
6045 | { | |
6046 | Elf_Internal_Shdr *header = * headerp; | |
6047 | ||
6048 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
6049 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
6050 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
6051 | && header->sh_type != SHT_NOBITS | |
6052 | && header->sh_type != SHT_NOTE) | |
6053 | return FALSE; | |
6054 | } | |
6055 | ||
6056 | return TRUE; | |
6057 | } | |
6058 | ||
1ff6de03 NA |
6059 | /* Assign file positions for the other sections, except for compressed debugging |
6060 | and other sections assigned in _bfd_elf_assign_file_positions_for_non_load(). */ | |
f3520d2f AM |
6061 | |
6062 | static bfd_boolean | |
6063 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
6064 | struct bfd_link_info *link_info) | |
6065 | { | |
6066 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
6067 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 6068 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
6069 | Elf_Internal_Phdr *phdrs; |
6070 | Elf_Internal_Phdr *p; | |
6071 | struct elf_segment_map *m; | |
f3520d2f | 6072 | file_ptr off; |
f3520d2f | 6073 | |
5c182d5f | 6074 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 6075 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 6076 | off = elf_next_file_pos (abfd); |
e06efbf1 | 6077 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 6078 | { |
5c182d5f AM |
6079 | Elf_Internal_Shdr *hdr; |
6080 | ||
6081 | hdr = *hdrpp; | |
6082 | if (hdr->bfd_section != NULL | |
252e386e AM |
6083 | && (hdr->bfd_section->filepos != 0 |
6084 | || (hdr->sh_type == SHT_NOBITS | |
6085 | && hdr->contents == NULL))) | |
627b32bc | 6086 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
6087 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
6088 | { | |
1faa385f NC |
6089 | if (hdr->sh_size != 0 |
6090 | /* PR 24717 - debuginfo files are known to be not strictly | |
6091 | compliant with the ELF standard. In particular they often | |
6092 | have .note.gnu.property sections that are outside of any | |
6093 | loadable segment. This is not a problem for such files, | |
6094 | so do not warn about them. */ | |
6095 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 6096 | _bfd_error_handler |
695344c0 | 6097 | /* xgettext:c-format */ |
871b3ab2 | 6098 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
6099 | abfd, |
6100 | (hdr->bfd_section == NULL | |
6101 | ? "*unknown*" | |
6102 | : hdr->bfd_section->name)); | |
3ba71138 L |
6103 | /* We don't need to page align empty sections. */ |
6104 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
6105 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
6106 | bed->maxpagesize); | |
6107 | else | |
6108 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
6109 | hdr->sh_addralign); | |
6110 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
6111 | FALSE); | |
6112 | } | |
6113 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
6114 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6115 | /* We don't know the offset of these sections yet: their size has |
6116 | not been decided. */ | |
0ce398f1 | 6117 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6118 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6119 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6120 | && abfd->is_linker_output))) | |
12bd6957 | 6121 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
6122 | || (elf_symtab_shndx_list (abfd) != NULL |
6123 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6124 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
6125 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
6126 | hdr->sh_offset = -1; |
6127 | else | |
6128 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f | 6129 | } |
30fe1832 | 6130 | elf_next_file_pos (abfd) = off; |
5c182d5f | 6131 | |
252b5132 RH |
6132 | /* Now that we have set the section file positions, we can set up |
6133 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f | 6134 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 6135 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6136 | { |
129af99f | 6137 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6138 | { |
f2731e0c | 6139 | bfd_vma start, end; |
01f7e10c | 6140 | bfd_boolean ok; |
1ea63fd2 | 6141 | |
129af99f | 6142 | if (link_info != NULL) |
8c37241b | 6143 | { |
129af99f | 6144 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6145 | in link_info. Note that there may be padding between |
6146 | relro_start and the first RELRO section. */ | |
6147 | start = link_info->relro_start; | |
6148 | end = link_info->relro_end; | |
6149 | } | |
6150 | else if (m->count != 0) | |
6151 | { | |
6152 | if (!m->p_size_valid) | |
6153 | abort (); | |
6154 | start = m->sections[0]->vma; | |
6155 | end = start + m->p_size; | |
6156 | } | |
6157 | else | |
6158 | { | |
6159 | start = 0; | |
6160 | end = 0; | |
6161 | } | |
6162 | ||
01f7e10c | 6163 | ok = FALSE; |
f2731e0c AM |
6164 | if (start < end) |
6165 | { | |
6166 | struct elf_segment_map *lm; | |
6167 | const Elf_Internal_Phdr *lp; | |
6168 | unsigned int i; | |
6169 | ||
6170 | /* Find a LOAD segment containing a section in the RELRO | |
6171 | segment. */ | |
12bd6957 | 6172 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6173 | lm != NULL; |
6174 | lm = lm->next, lp++) | |
8c37241b JJ |
6175 | { |
6176 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6177 | && lm->count != 0 |
dbc88fc1 AM |
6178 | && (lm->sections[lm->count - 1]->vma |
6179 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
6180 | ? lm->sections[lm->count - 1]->size | |
6181 | : 0)) > start | |
f2731e0c | 6182 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6183 | break; |
6184 | } | |
f2731e0c | 6185 | |
01f7e10c | 6186 | if (lm != NULL) |
129af99f | 6187 | { |
01f7e10c AM |
6188 | /* Find the section starting the RELRO segment. */ |
6189 | for (i = 0; i < lm->count; i++) | |
6190 | { | |
6191 | asection *s = lm->sections[i]; | |
6192 | if (s->vma >= start | |
6193 | && s->vma < end | |
6194 | && s->size != 0) | |
6195 | break; | |
6196 | } | |
6197 | ||
6198 | if (i < lm->count) | |
6199 | { | |
6200 | p->p_vaddr = lm->sections[i]->vma; | |
6201 | p->p_paddr = lm->sections[i]->lma; | |
6202 | p->p_offset = lm->sections[i]->filepos; | |
6203 | p->p_memsz = end - p->p_vaddr; | |
6204 | p->p_filesz = p->p_memsz; | |
6205 | ||
6206 | /* The RELRO segment typically ends a few bytes | |
6207 | into .got.plt but other layouts are possible. | |
6208 | In cases where the end does not match any | |
6209 | loaded section (for instance is in file | |
6210 | padding), trim p_filesz back to correspond to | |
6211 | the end of loaded section contents. */ | |
6212 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6213 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6214 | ||
6215 | /* Preserve the alignment and flags if they are | |
6216 | valid. The gold linker generates RW/4 for | |
6217 | the PT_GNU_RELRO section. It is better for | |
6218 | objcopy/strip to honor these attributes | |
6219 | otherwise gdb will choke when using separate | |
6220 | debug files. */ | |
6221 | if (!m->p_align_valid) | |
6222 | p->p_align = 1; | |
6223 | if (!m->p_flags_valid) | |
6224 | p->p_flags = PF_R; | |
6225 | ok = TRUE; | |
6226 | } | |
129af99f | 6227 | } |
b84a33b5 | 6228 | } |
01f7e10c AM |
6229 | if (link_info != NULL) |
6230 | BFD_ASSERT (ok); | |
6231 | if (!ok) | |
6232 | memset (p, 0, sizeof *p); | |
129af99f | 6233 | } |
04c3a755 NS |
6234 | else if (p->p_type == PT_GNU_STACK) |
6235 | { | |
6236 | if (m->p_size_valid) | |
6237 | p->p_memsz = m->p_size; | |
6238 | } | |
129af99f AS |
6239 | else if (m->count != 0) |
6240 | { | |
e06efbf1 | 6241 | unsigned int i; |
1a9ccd70 | 6242 | |
129af99f AS |
6243 | if (p->p_type != PT_LOAD |
6244 | && (p->p_type != PT_NOTE | |
6245 | || bfd_get_format (abfd) != bfd_core)) | |
6246 | { | |
1a9ccd70 NC |
6247 | /* A user specified segment layout may include a PHDR |
6248 | segment that overlaps with a LOAD segment... */ | |
6249 | if (p->p_type == PT_PHDR) | |
6250 | { | |
6251 | m->count = 0; | |
6252 | continue; | |
6253 | } | |
6254 | ||
c86934ce NC |
6255 | if (m->includes_filehdr || m->includes_phdrs) |
6256 | { | |
b1fa9dd6 | 6257 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6258 | _bfd_error_handler |
871b3ab2 | 6259 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6260 | "and/or program header"), |
6261 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6262 | return FALSE; |
6263 | } | |
129af99f | 6264 | |
86b2281f | 6265 | p->p_filesz = 0; |
129af99f | 6266 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6267 | for (i = m->count; i-- != 0;) |
6268 | { | |
6269 | asection *sect = m->sections[i]; | |
6270 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6271 | if (hdr->sh_type != SHT_NOBITS) | |
6272 | { | |
6273 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6274 | + hdr->sh_size); | |
6275 | break; | |
6276 | } | |
6277 | } | |
129af99f AS |
6278 | } |
6279 | } | |
252b5132 RH |
6280 | } |
6281 | ||
b34976b6 | 6282 | return TRUE; |
252b5132 RH |
6283 | } |
6284 | ||
6a40cf0c NC |
6285 | static elf_section_list * |
6286 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6287 | { | |
6288 | for (;list != NULL; list = list->next) | |
6289 | if (list->ndx == i) | |
6290 | break; | |
6291 | return list; | |
6292 | } | |
6293 | ||
252b5132 RH |
6294 | /* Work out the file positions of all the sections. This is called by |
6295 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6296 | VMAs must be known before this is called. | |
6297 | ||
e0638f70 | 6298 | Reloc sections come in two flavours: Those processed specially as |
1ff6de03 NA |
6299 | "side-channel" data attached to a section to which they apply, and those that |
6300 | bfd doesn't process as relocations. The latter sort are stored in a normal | |
6301 | bfd section by bfd_section_from_shdr. We don't consider the former sort | |
6302 | here, unless they form part of the loadable image. Reloc sections not | |
6303 | assigned here (and compressed debugging sections and CTF sections which | |
6304 | nothing else in the file can rely upon) will be handled later by | |
e0638f70 | 6305 | assign_file_positions_for_relocs. |
252b5132 RH |
6306 | |
6307 | We also don't set the positions of the .symtab and .strtab here. */ | |
6308 | ||
b34976b6 | 6309 | static bfd_boolean |
c84fca4d AO |
6310 | assign_file_positions_except_relocs (bfd *abfd, |
6311 | struct bfd_link_info *link_info) | |
252b5132 | 6312 | { |
5c182d5f AM |
6313 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6314 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6315 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6316 | |
6317 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6318 | && bfd_get_format (abfd) != bfd_core) | |
6319 | { | |
5c182d5f AM |
6320 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6321 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6322 | Elf_Internal_Shdr **hdrpp; |
6323 | unsigned int i; | |
a485e98e | 6324 | file_ptr off; |
252b5132 RH |
6325 | |
6326 | /* Start after the ELF header. */ | |
6327 | off = i_ehdrp->e_ehsize; | |
6328 | ||
6329 | /* We are not creating an executable, which means that we are | |
6330 | not creating a program header, and that the actual order of | |
6331 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6332 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6333 | { |
6334 | Elf_Internal_Shdr *hdr; | |
6335 | ||
6336 | hdr = *hdrpp; | |
e0638f70 AM |
6337 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6338 | && hdr->bfd_section == NULL) | |
1ff6de03 NA |
6339 | /* Do not assign offsets for these sections yet: we don't know |
6340 | their sizes. */ | |
0ce398f1 | 6341 | || (hdr->bfd_section != NULL |
1ff6de03 NA |
6342 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS |
6343 | || (bfd_section_is_ctf (hdr->bfd_section) | |
6344 | && abfd->is_linker_output))) | |
12bd6957 | 6345 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6346 | || (elf_symtab_shndx_list (abfd) != NULL |
6347 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6348 | || i == elf_strtab_sec (abfd) |
6349 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6350 | { |
6351 | hdr->sh_offset = -1; | |
252b5132 | 6352 | } |
9ad5cbcf | 6353 | else |
b34976b6 | 6354 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6355 | } |
a485e98e AM |
6356 | |
6357 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
6358 | } |
6359 | else | |
6360 | { | |
f3520d2f AM |
6361 | unsigned int alloc; |
6362 | ||
252b5132 | 6363 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6364 | assignment of sections to segments. */ |
f3520d2f AM |
6365 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6366 | return FALSE; | |
6367 | ||
6368 | /* And for non-load sections. */ | |
6369 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6370 | return FALSE; | |
6371 | ||
e36284ab AM |
6372 | if (bed->elf_backend_modify_program_headers != NULL) |
6373 | { | |
6374 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
6375 | return FALSE; | |
6376 | } | |
6377 | ||
58e7ebac | 6378 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
0e1862bb | 6379 | if (link_info != NULL && bfd_link_pie (link_info)) |
58e7ebac | 6380 | { |
30fe1832 AM |
6381 | unsigned int num_segments = i_ehdrp->e_phnum; |
6382 | Elf_Internal_Phdr *segment = tdata->phdr; | |
58e7ebac L |
6383 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; |
6384 | ||
6385 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6386 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6387 | for (; segment < end_segment; segment++) | |
6388 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6389 | p_vaddr = segment->p_vaddr; | |
6390 | ||
6391 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6392 | segments is non-zero. */ | |
6393 | if (p_vaddr) | |
6394 | i_ehdrp->e_type = ET_EXEC; | |
6395 | } | |
6396 | ||
30fe1832 | 6397 | /* Write out the program headers. |
cd584857 NC |
6398 | FIXME: We used to have code here to sort the PT_LOAD segments into |
6399 | ascending order, as per the ELF spec. But this breaks some programs, | |
6400 | including the Linux kernel. But really either the spec should be | |
07d6d2b8 | 6401 | changed or the programs updated. */ |
30fe1832 AM |
6402 | alloc = i_ehdrp->e_phnum; |
6403 | if (alloc == 0) | |
6404 | return TRUE; | |
1a9ccd70 | 6405 | |
30fe1832 | 6406 | if (bfd_seek (abfd, i_ehdrp->e_phoff, SEEK_SET) != 0 |
cd584857 NC |
6407 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6408 | return FALSE; | |
252b5132 RH |
6409 | } |
6410 | ||
b34976b6 | 6411 | return TRUE; |
252b5132 RH |
6412 | } |
6413 | ||
b34976b6 | 6414 | static bfd_boolean |
217aa764 | 6415 | prep_headers (bfd *abfd) |
252b5132 | 6416 | { |
3d540e93 | 6417 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6418 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6419 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6420 | |
6421 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6422 | |
2b0f7ef9 | 6423 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6424 | if (shstrtab == NULL) |
b34976b6 | 6425 | return FALSE; |
252b5132 RH |
6426 | |
6427 | elf_shstrtab (abfd) = shstrtab; | |
6428 | ||
6429 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6430 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6431 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6432 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6433 | ||
6434 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6435 | i_ehdrp->e_ident[EI_DATA] = | |
6436 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6437 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6438 | ||
252b5132 RH |
6439 | if ((abfd->flags & DYNAMIC) != 0) |
6440 | i_ehdrp->e_type = ET_DYN; | |
6441 | else if ((abfd->flags & EXEC_P) != 0) | |
6442 | i_ehdrp->e_type = ET_EXEC; | |
6443 | else if (bfd_get_format (abfd) == bfd_core) | |
6444 | i_ehdrp->e_type = ET_CORE; | |
6445 | else | |
6446 | i_ehdrp->e_type = ET_REL; | |
6447 | ||
6448 | switch (bfd_get_arch (abfd)) | |
6449 | { | |
6450 | case bfd_arch_unknown: | |
6451 | i_ehdrp->e_machine = EM_NONE; | |
6452 | break; | |
aa4f99bb AO |
6453 | |
6454 | /* There used to be a long list of cases here, each one setting | |
6455 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6456 | in the corresponding bfd definition. To avoid duplication, | |
6457 | the switch was removed. Machines that need special handling | |
6458 | can generally do it in elf_backend_final_write_processing(), | |
6459 | unless they need the information earlier than the final write. | |
6460 | Such need can generally be supplied by replacing the tests for | |
6461 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6462 | default: |
9c5bfbb7 AM |
6463 | i_ehdrp->e_machine = bed->elf_machine_code; |
6464 | } | |
aa4f99bb | 6465 | |
252b5132 RH |
6466 | i_ehdrp->e_version = bed->s->ev_current; |
6467 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6468 | ||
c044fabd | 6469 | /* No program header, for now. */ |
252b5132 RH |
6470 | i_ehdrp->e_phoff = 0; |
6471 | i_ehdrp->e_phentsize = 0; | |
6472 | i_ehdrp->e_phnum = 0; | |
6473 | ||
c044fabd | 6474 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6475 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6476 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6477 | ||
c044fabd | 6478 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 6479 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
6480 | /* It all happens later. */ |
6481 | ; | |
252b5132 RH |
6482 | else |
6483 | { | |
6484 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
6485 | i_ehdrp->e_phoff = 0; |
6486 | } | |
6487 | ||
6488 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 6489 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6490 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6491 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6492 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6493 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6494 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6495 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6496 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6497 | return FALSE; |
252b5132 | 6498 | |
b34976b6 | 6499 | return TRUE; |
252b5132 RH |
6500 | } |
6501 | ||
6502 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 6503 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6504 | |
0ce398f1 L |
6505 | static bfd_boolean |
6506 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6507 | { |
6508 | file_ptr off; | |
e06efbf1 | 6509 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6510 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6511 | Elf_Internal_Ehdr *i_ehdrp; |
6512 | const struct elf_backend_data *bed; | |
252b5132 | 6513 | |
12bd6957 | 6514 | off = elf_next_file_pos (abfd); |
252b5132 | 6515 | |
e06efbf1 L |
6516 | shdrpp = elf_elfsections (abfd); |
6517 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6518 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6519 | { |
252b5132 | 6520 | shdrp = *shdrpp; |
0ce398f1 L |
6521 | if (shdrp->sh_offset == -1) |
6522 | { | |
3e19fb8f | 6523 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6524 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6525 | || shdrp->sh_type == SHT_RELA); | |
1ff6de03 | 6526 | bfd_boolean is_ctf = sec && bfd_section_is_ctf (sec); |
0ce398f1 | 6527 | if (is_rel |
1ff6de03 | 6528 | || is_ctf |
3e19fb8f | 6529 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 | 6530 | { |
1ff6de03 | 6531 | if (!is_rel && !is_ctf) |
0ce398f1 | 6532 | { |
3e19fb8f L |
6533 | const char *name = sec->name; |
6534 | struct bfd_elf_section_data *d; | |
6535 | ||
0ce398f1 | 6536 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6537 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6538 | shdrp->contents)) |
6539 | return FALSE; | |
3e19fb8f L |
6540 | |
6541 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6542 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6543 | { | |
6544 | /* If section is compressed with zlib-gnu, convert | |
6545 | section name from .debug_* to .zdebug_*. */ | |
6546 | char *new_name | |
6547 | = convert_debug_to_zdebug (abfd, name); | |
6548 | if (new_name == NULL) | |
6549 | return FALSE; | |
6550 | name = new_name; | |
6551 | } | |
dd905818 | 6552 | /* Add section name to section name section. */ |
3e19fb8f L |
6553 | if (shdrp->sh_name != (unsigned int) -1) |
6554 | abort (); | |
6555 | shdrp->sh_name | |
6556 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6557 | name, FALSE); | |
6558 | d = elf_section_data (sec); | |
6559 | ||
dd905818 | 6560 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6561 | if (d->rel.hdr |
6562 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6563 | d->rel.hdr, | |
6564 | name, FALSE)) | |
6565 | return FALSE; | |
6566 | if (d->rela.hdr | |
6567 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6568 | d->rela.hdr, | |
91cb26da | 6569 | name, TRUE)) |
3e19fb8f L |
6570 | return FALSE; |
6571 | ||
0ce398f1 | 6572 | /* Update section size and contents. */ |
3e19fb8f L |
6573 | shdrp->sh_size = sec->size; |
6574 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6575 | shdrp->bfd_section->contents = NULL; |
6576 | } | |
1ff6de03 NA |
6577 | else if (is_ctf) |
6578 | { | |
6579 | /* Update section size and contents. */ | |
6580 | shdrp->sh_size = sec->size; | |
6581 | shdrp->contents = sec->contents; | |
6582 | } | |
6583 | ||
0ce398f1 L |
6584 | off = _bfd_elf_assign_file_position_for_section (shdrp, |
6585 | off, | |
6586 | TRUE); | |
6587 | } | |
6588 | } | |
252b5132 RH |
6589 | } |
6590 | ||
3e19fb8f L |
6591 | /* Place section name section after DWARF debug sections have been |
6592 | compressed. */ | |
6593 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6594 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6595 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6596 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6597 | ||
6598 | /* Place the section headers. */ | |
a485e98e AM |
6599 | i_ehdrp = elf_elfheader (abfd); |
6600 | bed = get_elf_backend_data (abfd); | |
6601 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6602 | i_ehdrp->e_shoff = off; | |
6603 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6604 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6605 | |
6606 | return TRUE; | |
252b5132 RH |
6607 | } |
6608 | ||
b34976b6 | 6609 | bfd_boolean |
217aa764 | 6610 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6611 | { |
9c5bfbb7 | 6612 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6613 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6614 | bfd_boolean failed; |
9ad5cbcf | 6615 | unsigned int count, num_sec; |
30e8ee25 | 6616 | struct elf_obj_tdata *t; |
252b5132 RH |
6617 | |
6618 | if (! abfd->output_has_begun | |
217aa764 | 6619 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6620 | return FALSE; |
db727370 JL |
6621 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6622 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6623 | sections, and modification of existing section sizes was restricted. | |
6624 | This means the ELF header, program headers and section headers can't have | |
6625 | changed. | |
6626 | If the contents of any sections has been modified, then those changes have | |
6627 | already been written to the BFD. */ | |
6628 | else if (abfd->direction == both_direction) | |
6629 | { | |
6630 | BFD_ASSERT (abfd->output_has_begun); | |
6631 | return TRUE; | |
6632 | } | |
252b5132 RH |
6633 | |
6634 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6635 | |
b34976b6 | 6636 | failed = FALSE; |
252b5132 RH |
6637 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6638 | if (failed) | |
b34976b6 | 6639 | return FALSE; |
252b5132 | 6640 | |
0ce398f1 L |
6641 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6642 | return FALSE; | |
252b5132 | 6643 | |
c044fabd | 6644 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6645 | num_sec = elf_numsections (abfd); |
6646 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6647 | { |
3e19fb8f L |
6648 | i_shdrp[count]->sh_name |
6649 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6650 | i_shdrp[count]->sh_name); | |
252b5132 | 6651 | if (bed->elf_backend_section_processing) |
75506100 MR |
6652 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6653 | return FALSE; | |
252b5132 RH |
6654 | if (i_shdrp[count]->contents) |
6655 | { | |
dc810e39 AM |
6656 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6657 | ||
252b5132 | 6658 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6659 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6660 | return FALSE; |
252b5132 RH |
6661 | } |
6662 | } | |
6663 | ||
6664 | /* Write out the section header names. */ | |
30e8ee25 | 6665 | t = elf_tdata (abfd); |
26ae6d5e | 6666 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6667 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6668 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6669 | return FALSE; |
252b5132 | 6670 | |
cc364be6 AM |
6671 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
6672 | return FALSE; | |
252b5132 | 6673 | |
ff59fc36 RM |
6674 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6675 | return FALSE; | |
6676 | ||
6677 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6678 | if (t->o->build_id.after_write_object_contents != NULL) |
6679 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6680 | |
6681 | return TRUE; | |
252b5132 RH |
6682 | } |
6683 | ||
b34976b6 | 6684 | bfd_boolean |
217aa764 | 6685 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6686 | { |
c044fabd | 6687 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6688 | return _bfd_elf_write_object_contents (abfd); |
6689 | } | |
c044fabd KH |
6690 | |
6691 | /* Given a section, search the header to find them. */ | |
6692 | ||
cb33740c | 6693 | unsigned int |
198beae2 | 6694 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6695 | { |
9c5bfbb7 | 6696 | const struct elf_backend_data *bed; |
91d6fa6a | 6697 | unsigned int sec_index; |
252b5132 | 6698 | |
9ad5cbcf AM |
6699 | if (elf_section_data (asect) != NULL |
6700 | && elf_section_data (asect)->this_idx != 0) | |
6701 | return elf_section_data (asect)->this_idx; | |
6702 | ||
6703 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6704 | sec_index = SHN_ABS; |
af746e92 | 6705 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6706 | sec_index = SHN_COMMON; |
af746e92 | 6707 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6708 | sec_index = SHN_UNDEF; |
af746e92 | 6709 | else |
91d6fa6a | 6710 | sec_index = SHN_BAD; |
252b5132 | 6711 | |
af746e92 | 6712 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6713 | if (bed->elf_backend_section_from_bfd_section) |
6714 | { | |
91d6fa6a | 6715 | int retval = sec_index; |
9ad5cbcf | 6716 | |
af746e92 AM |
6717 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6718 | return retval; | |
252b5132 RH |
6719 | } |
6720 | ||
91d6fa6a | 6721 | if (sec_index == SHN_BAD) |
af746e92 | 6722 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6723 | |
91d6fa6a | 6724 | return sec_index; |
252b5132 RH |
6725 | } |
6726 | ||
6727 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6728 | on error. */ | |
6729 | ||
6730 | int | |
217aa764 | 6731 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6732 | { |
6733 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6734 | int idx; | |
6735 | flagword flags = asym_ptr->flags; | |
6736 | ||
6737 | /* When gas creates relocations against local labels, it creates its | |
6738 | own symbol for the section, but does put the symbol into the | |
6739 | symbol chain, so udata is 0. When the linker is generating | |
6740 | relocatable output, this section symbol may be for one of the | |
6741 | input sections rather than the output section. */ | |
6742 | if (asym_ptr->udata.i == 0 | |
6743 | && (flags & BSF_SECTION_SYM) | |
6744 | && asym_ptr->section) | |
6745 | { | |
5372391b | 6746 | asection *sec; |
252b5132 RH |
6747 | int indx; |
6748 | ||
5372391b AM |
6749 | sec = asym_ptr->section; |
6750 | if (sec->owner != abfd && sec->output_section != NULL) | |
6751 | sec = sec->output_section; | |
6752 | if (sec->owner == abfd | |
6753 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6754 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6755 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6756 | } | |
6757 | ||
6758 | idx = asym_ptr->udata.i; | |
6759 | ||
6760 | if (idx == 0) | |
6761 | { | |
6762 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6763 | which is used in a relocation entry. */ |
4eca0228 | 6764 | _bfd_error_handler |
695344c0 | 6765 | /* xgettext:c-format */ |
871b3ab2 | 6766 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6767 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6768 | bfd_set_error (bfd_error_no_symbols); |
6769 | return -1; | |
6770 | } | |
6771 | ||
6772 | #if DEBUG & 4 | |
6773 | { | |
6774 | fprintf (stderr, | |
cd9af601 AM |
6775 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6776 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6777 | fflush (stderr); |
6778 | } | |
6779 | #endif | |
6780 | ||
6781 | return idx; | |
6782 | } | |
6783 | ||
84d1d650 | 6784 | /* Rewrite program header information. */ |
252b5132 | 6785 | |
b34976b6 | 6786 | static bfd_boolean |
84d1d650 | 6787 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6788 | { |
b34976b6 AM |
6789 | Elf_Internal_Ehdr *iehdr; |
6790 | struct elf_segment_map *map; | |
6791 | struct elf_segment_map *map_first; | |
6792 | struct elf_segment_map **pointer_to_map; | |
6793 | Elf_Internal_Phdr *segment; | |
6794 | asection *section; | |
6795 | unsigned int i; | |
6796 | unsigned int num_segments; | |
6797 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6798 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6799 | bfd_vma maxpagesize; |
6800 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6801 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6802 | const struct elf_backend_data *bed; |
bc67d8a6 | 6803 | |
caf47ea6 | 6804 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6805 | iehdr = elf_elfheader (ibfd); |
6806 | ||
bc67d8a6 | 6807 | map_first = NULL; |
c044fabd | 6808 | pointer_to_map = &map_first; |
252b5132 RH |
6809 | |
6810 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6811 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6812 | ||
6813 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6814 | #define SEGMENT_END(segment, start) \ |
6815 | (start + (segment->p_memsz > segment->p_filesz \ | |
6816 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6817 | |
eecdbe52 JJ |
6818 | #define SECTION_SIZE(section, segment) \ |
6819 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6820 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6821 | ? section->size : 0) |
eecdbe52 | 6822 | |
b34976b6 | 6823 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6824 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6825 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6826 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6827 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6828 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6829 | |
b34976b6 | 6830 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6831 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6832 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6833 | (section->lma >= base \ | |
beab4532 | 6834 | && (section->lma + SECTION_SIZE (section, segment) >= section->lma) \ |
eecdbe52 | 6835 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6836 | <= SEGMENT_END (segment, base))) |
252b5132 | 6837 | |
0efc80c8 L |
6838 | /* Handle PT_NOTE segment. */ |
6839 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6840 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6841 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6842 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6843 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6844 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6845 | |
0efc80c8 L |
6846 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6847 | etc. */ | |
6848 | #define IS_COREFILE_NOTE(p, s) \ | |
6849 | (IS_NOTE (p, s) \ | |
6850 | && bfd_get_format (ibfd) == bfd_core \ | |
6851 | && s->vma == 0 \ | |
6852 | && s->lma == 0) | |
6853 | ||
252b5132 RH |
6854 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6855 | linker, which generates a PT_INTERP section with p_vaddr and | |
6856 | p_memsz set to 0. */ | |
aecc8f8a AM |
6857 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6858 | (p->p_vaddr == 0 \ | |
6859 | && p->p_paddr == 0 \ | |
6860 | && p->p_memsz == 0 \ | |
6861 | && p->p_filesz > 0 \ | |
6862 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6863 | && s->size > 0 \ |
aecc8f8a | 6864 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6865 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6866 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6867 | |
bc67d8a6 NC |
6868 | /* Decide if the given section should be included in the given segment. |
6869 | A section will be included if: | |
f5ffc919 | 6870 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6871 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6872 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6873 | segment. |
bc67d8a6 | 6874 | 3. There is an output section associated with it, |
eecdbe52 | 6875 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6876 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6877 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6878 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6879 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6880 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6881 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6882 | ((((segment->p_paddr \ |
6883 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6884 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6885 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6886 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6887 | && segment->p_type != PT_GNU_STACK \ |
6888 | && (segment->p_type != PT_TLS \ | |
6889 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6890 | && (segment->p_type == PT_LOAD \ | |
6891 | || segment->p_type == PT_TLS \ | |
6892 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6893 | && (segment->p_type != PT_DYNAMIC \ | |
6894 | || SECTION_SIZE (section, segment) > 0 \ | |
6895 | || (segment->p_paddr \ | |
6896 | ? segment->p_paddr != section->lma \ | |
6897 | : segment->p_vaddr != section->vma) \ | |
fd361982 | 6898 | || (strcmp (bfd_section_name (section), ".dynamic") == 0)) \ |
9933dc52 | 6899 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6900 | |
9f17e2a6 L |
6901 | /* If the output section of a section in the input segment is NULL, |
6902 | it is removed from the corresponding output segment. */ | |
6903 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6904 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6905 | && section->output_section != NULL) | |
6906 | ||
b34976b6 | 6907 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6908 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6909 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6910 | ||
6911 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6912 | their VMA address ranges and their LMA address ranges overlap. | |
6913 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6914 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6915 | to the same VMA range, but with the .data section mapped to a different | |
6916 | LMA. */ | |
aecc8f8a | 6917 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6918 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6919 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6920 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6921 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6922 | |
6923 | /* Initialise the segment mark field. */ | |
6924 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6925 | section->segment_mark = FALSE; |
bc67d8a6 | 6926 | |
5c44b38e AM |
6927 | /* The Solaris linker creates program headers in which all the |
6928 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6929 | file, we get confused. Check for this case, and if we find it | |
6930 | don't set the p_paddr_valid fields. */ | |
6931 | p_paddr_valid = FALSE; | |
6932 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6933 | i < num_segments; | |
6934 | i++, segment++) | |
6935 | if (segment->p_paddr != 0) | |
6936 | { | |
6937 | p_paddr_valid = TRUE; | |
6938 | break; | |
6939 | } | |
6940 | ||
252b5132 | 6941 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6942 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6943 | in the loadable segments. These can be created by weird |
aecc8f8a | 6944 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6945 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6946 | i < num_segments; | |
c044fabd | 6947 | i++, segment++) |
252b5132 | 6948 | { |
252b5132 | 6949 | unsigned int j; |
c044fabd | 6950 | Elf_Internal_Phdr *segment2; |
252b5132 | 6951 | |
aecc8f8a AM |
6952 | if (segment->p_type == PT_INTERP) |
6953 | for (section = ibfd->sections; section; section = section->next) | |
6954 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6955 | { | |
6956 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6957 | assignment code will work. */ |
aecc8f8a AM |
6958 | segment->p_vaddr = section->vma; |
6959 | break; | |
6960 | } | |
6961 | ||
bc67d8a6 | 6962 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6963 | { |
6964 | /* Remove PT_GNU_RELRO segment. */ | |
6965 | if (segment->p_type == PT_GNU_RELRO) | |
6966 | segment->p_type = PT_NULL; | |
6967 | continue; | |
6968 | } | |
c044fabd | 6969 | |
bc67d8a6 | 6970 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6971 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6972 | { |
6973 | bfd_signed_vma extra_length; | |
c044fabd | 6974 | |
bc67d8a6 | 6975 | if (segment2->p_type != PT_LOAD |
0067a569 | 6976 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6977 | continue; |
c044fabd | 6978 | |
bc67d8a6 NC |
6979 | /* Merge the two segments together. */ |
6980 | if (segment2->p_vaddr < segment->p_vaddr) | |
6981 | { | |
c044fabd | 6982 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6983 | SEGMENT. */ |
0067a569 AM |
6984 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6985 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6986 | |
bc67d8a6 NC |
6987 | if (extra_length > 0) |
6988 | { | |
0067a569 | 6989 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6990 | segment2->p_filesz += extra_length; |
6991 | } | |
c044fabd | 6992 | |
bc67d8a6 | 6993 | segment->p_type = PT_NULL; |
c044fabd | 6994 | |
bc67d8a6 NC |
6995 | /* Since we have deleted P we must restart the outer loop. */ |
6996 | i = 0; | |
6997 | segment = elf_tdata (ibfd)->phdr; | |
6998 | break; | |
6999 | } | |
7000 | else | |
7001 | { | |
c044fabd | 7002 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 7003 | SEGMENT2. */ |
0067a569 AM |
7004 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
7005 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 7006 | |
bc67d8a6 NC |
7007 | if (extra_length > 0) |
7008 | { | |
0067a569 | 7009 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
7010 | segment->p_filesz += extra_length; |
7011 | } | |
c044fabd | 7012 | |
bc67d8a6 NC |
7013 | segment2->p_type = PT_NULL; |
7014 | } | |
7015 | } | |
7016 | } | |
c044fabd | 7017 | |
bc67d8a6 NC |
7018 | /* The second scan attempts to assign sections to segments. */ |
7019 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7020 | i < num_segments; | |
0067a569 | 7021 | i++, segment++) |
bc67d8a6 | 7022 | { |
0067a569 AM |
7023 | unsigned int section_count; |
7024 | asection **sections; | |
7025 | asection *output_section; | |
7026 | unsigned int isec; | |
9933dc52 AM |
7027 | asection *matching_lma; |
7028 | asection *suggested_lma; | |
0067a569 | 7029 | unsigned int j; |
dc810e39 | 7030 | bfd_size_type amt; |
0067a569 | 7031 | asection *first_section; |
bc67d8a6 NC |
7032 | |
7033 | if (segment->p_type == PT_NULL) | |
7034 | continue; | |
c044fabd | 7035 | |
9f17e2a6 | 7036 | first_section = NULL; |
bc67d8a6 | 7037 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
7038 | for (section = ibfd->sections, section_count = 0; |
7039 | section != NULL; | |
7040 | section = section->next) | |
9f17e2a6 L |
7041 | { |
7042 | /* Find the first section in the input segment, which may be | |
7043 | removed from the corresponding output segment. */ | |
7044 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
7045 | { | |
7046 | if (first_section == NULL) | |
7047 | first_section = section; | |
7048 | if (section->output_section != NULL) | |
7049 | ++section_count; | |
7050 | } | |
7051 | } | |
811072d8 | 7052 | |
b5f852ea NC |
7053 | /* Allocate a segment map big enough to contain |
7054 | all of the sections we have selected. */ | |
00bee008 AM |
7055 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7056 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 7057 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7058 | if (map == NULL) |
b34976b6 | 7059 | return FALSE; |
252b5132 RH |
7060 | |
7061 | /* Initialise the fields of the segment map. Default to | |
7062 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7063 | map->next = NULL; |
7064 | map->p_type = segment->p_type; | |
7065 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7066 | map->p_flags_valid = 1; |
55d55ac7 | 7067 | |
9f17e2a6 L |
7068 | /* If the first section in the input segment is removed, there is |
7069 | no need to preserve segment physical address in the corresponding | |
7070 | output segment. */ | |
945c025a | 7071 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7072 | { |
7073 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7074 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7075 | } |
252b5132 RH |
7076 | |
7077 | /* Determine if this segment contains the ELF file header | |
7078 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7079 | map->includes_filehdr = (segment->p_offset == 0 |
7080 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7081 | map->includes_phdrs = 0; |
252b5132 | 7082 | |
0067a569 | 7083 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7084 | { |
bc67d8a6 NC |
7085 | map->includes_phdrs = |
7086 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7087 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7088 | >= ((bfd_vma) iehdr->e_phoff |
7089 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7090 | |
bc67d8a6 | 7091 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 7092 | phdr_included = TRUE; |
252b5132 RH |
7093 | } |
7094 | ||
bc67d8a6 | 7095 | if (section_count == 0) |
252b5132 RH |
7096 | { |
7097 | /* Special segments, such as the PT_PHDR segment, may contain | |
7098 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7099 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7100 | a warning is produced. |
f98450c6 NC |
7101 | There is however the valid use case of embedded systems which |
7102 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7103 | flash memory with zeros. No warning is shown for that case. */ | |
7104 | if (segment->p_type == PT_LOAD | |
7105 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7106 | /* xgettext:c-format */ | |
9793eb77 AM |
7107 | _bfd_error_handler |
7108 | (_("%pB: warning: empty loadable segment detected" | |
7109 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7110 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7111 | |
5d695627 | 7112 | map->p_vaddr_offset = segment->p_vaddr; |
bc67d8a6 | 7113 | map->count = 0; |
c044fabd KH |
7114 | *pointer_to_map = map; |
7115 | pointer_to_map = &map->next; | |
252b5132 RH |
7116 | |
7117 | continue; | |
7118 | } | |
7119 | ||
7120 | /* Now scan the sections in the input BFD again and attempt | |
7121 | to add their corresponding output sections to the segment map. | |
7122 | The problem here is how to handle an output section which has | |
7123 | been moved (ie had its LMA changed). There are four possibilities: | |
7124 | ||
7125 | 1. None of the sections have been moved. | |
7126 | In this case we can continue to use the segment LMA from the | |
7127 | input BFD. | |
7128 | ||
7129 | 2. All of the sections have been moved by the same amount. | |
7130 | In this case we can change the segment's LMA to match the LMA | |
7131 | of the first section. | |
7132 | ||
7133 | 3. Some of the sections have been moved, others have not. | |
7134 | In this case those sections which have not been moved can be | |
7135 | placed in the current segment which will have to have its size, | |
7136 | and possibly its LMA changed, and a new segment or segments will | |
7137 | have to be created to contain the other sections. | |
7138 | ||
b5f852ea | 7139 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7140 | In this case we can change the segment's LMA to match the LMA |
7141 | of the first section and we will have to create a new segment | |
7142 | or segments to contain the other sections. | |
7143 | ||
7144 | In order to save time, we allocate an array to hold the section | |
7145 | pointers that we are interested in. As these sections get assigned | |
7146 | to a segment, they are removed from this array. */ | |
7147 | ||
a50b1753 | 7148 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 7149 | if (sections == NULL) |
b34976b6 | 7150 | return FALSE; |
252b5132 RH |
7151 | |
7152 | /* Step One: Scan for segment vs section LMA conflicts. | |
7153 | Also add the sections to the section array allocated above. | |
7154 | Also add the sections to the current segment. In the common | |
7155 | case, where the sections have not been moved, this means that | |
7156 | we have completely filled the segment, and there is nothing | |
7157 | more to do. */ | |
252b5132 | 7158 | isec = 0; |
9933dc52 AM |
7159 | matching_lma = NULL; |
7160 | suggested_lma = NULL; | |
252b5132 | 7161 | |
461c4b2e | 7162 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7163 | section != NULL; |
7164 | section = section->next) | |
252b5132 | 7165 | { |
caf47ea6 | 7166 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 7167 | { |
bc67d8a6 NC |
7168 | output_section = section->output_section; |
7169 | ||
0067a569 | 7170 | sections[j++] = section; |
252b5132 RH |
7171 | |
7172 | /* The Solaris native linker always sets p_paddr to 0. | |
7173 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7174 | correct value. Note - some backends require that |
7175 | p_paddr be left as zero. */ | |
5c44b38e | 7176 | if (!p_paddr_valid |
4455705d | 7177 | && segment->p_vaddr != 0 |
0067a569 | 7178 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7179 | && isec == 0 |
bc67d8a6 | 7180 | && output_section->lma != 0 |
9933dc52 AM |
7181 | && (align_power (segment->p_vaddr |
7182 | + (map->includes_filehdr | |
7183 | ? iehdr->e_ehsize : 0) | |
7184 | + (map->includes_phdrs | |
7185 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7186 | : 0), | |
7187 | output_section->alignment_power) | |
7188 | == output_section->vma)) | |
bc67d8a6 | 7189 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7190 | |
7191 | /* Match up the physical address of the segment with the | |
7192 | LMA address of the output section. */ | |
bc67d8a6 | 7193 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 7194 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
7195 | || (bed->want_p_paddr_set_to_zero |
7196 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 7197 | { |
9933dc52 AM |
7198 | if (matching_lma == NULL |
7199 | || output_section->lma < matching_lma->lma) | |
7200 | matching_lma = output_section; | |
252b5132 RH |
7201 | |
7202 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7203 | then it does not overlap any other section within that |
252b5132 | 7204 | segment. */ |
0067a569 AM |
7205 | map->sections[isec++] = output_section; |
7206 | } | |
9933dc52 AM |
7207 | else if (suggested_lma == NULL) |
7208 | suggested_lma = output_section; | |
147d51c2 L |
7209 | |
7210 | if (j == section_count) | |
7211 | break; | |
252b5132 RH |
7212 | } |
7213 | } | |
7214 | ||
bc67d8a6 | 7215 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7216 | |
7217 | /* Step Two: Adjust the physical address of the current segment, | |
7218 | if necessary. */ | |
bc67d8a6 | 7219 | if (isec == section_count) |
252b5132 RH |
7220 | { |
7221 | /* All of the sections fitted within the segment as currently | |
7222 | specified. This is the default case. Add the segment to | |
7223 | the list of built segments and carry on to process the next | |
7224 | program header in the input BFD. */ | |
bc67d8a6 | 7225 | map->count = section_count; |
c044fabd KH |
7226 | *pointer_to_map = map; |
7227 | pointer_to_map = &map->next; | |
08a40648 | 7228 | |
5c44b38e | 7229 | if (p_paddr_valid |
30fe1832 AM |
7230 | && !bed->want_p_paddr_set_to_zero) |
7231 | { | |
7232 | bfd_vma hdr_size = 0; | |
7233 | if (map->includes_filehdr) | |
7234 | hdr_size = iehdr->e_ehsize; | |
7235 | if (map->includes_phdrs) | |
7236 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7237 | ||
7238 | /* Account for padding before the first section in the | |
7239 | segment. */ | |
7240 | map->p_vaddr_offset = map->p_paddr + hdr_size - matching_lma->lma; | |
7241 | } | |
08a40648 | 7242 | |
252b5132 RH |
7243 | free (sections); |
7244 | continue; | |
7245 | } | |
252b5132 RH |
7246 | else |
7247 | { | |
9933dc52 AM |
7248 | /* Change the current segment's physical address to match |
7249 | the LMA of the first section that fitted, or if no | |
7250 | section fitted, the first section. */ | |
7251 | if (matching_lma == NULL) | |
7252 | matching_lma = suggested_lma; | |
7253 | ||
7254 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7255 | |
bc67d8a6 NC |
7256 | /* Offset the segment physical address from the lma |
7257 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7258 | if (map->includes_phdrs) |
010c8431 | 7259 | { |
9933dc52 AM |
7260 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7261 | ||
7262 | /* iehdr->e_phnum is just an estimate of the number | |
7263 | of program headers that we will need. Make a note | |
7264 | here of the number we used and the segment we chose | |
7265 | to hold these headers, so that we can adjust the | |
7266 | offset when we know the correct value. */ | |
7267 | phdr_adjust_num = iehdr->e_phnum; | |
7268 | phdr_adjust_seg = map; | |
010c8431 | 7269 | } |
252b5132 | 7270 | |
9933dc52 | 7271 | if (map->includes_filehdr) |
bc67d8a6 | 7272 | { |
9933dc52 AM |
7273 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7274 | map->p_paddr -= iehdr->e_ehsize; | |
7275 | /* We've subtracted off the size of headers from the | |
7276 | first section lma, but there may have been some | |
7277 | alignment padding before that section too. Try to | |
7278 | account for that by adjusting the segment lma down to | |
7279 | the same alignment. */ | |
7280 | if (segment->p_align != 0 && segment->p_align < align) | |
7281 | align = segment->p_align; | |
7282 | map->p_paddr &= -align; | |
bc67d8a6 | 7283 | } |
252b5132 RH |
7284 | } |
7285 | ||
7286 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7287 | those that fit to the current segment and removing them from the |
252b5132 RH |
7288 | sections array; but making sure not to leave large gaps. Once all |
7289 | possible sections have been assigned to the current segment it is | |
7290 | added to the list of built segments and if sections still remain | |
7291 | to be assigned, a new segment is constructed before repeating | |
7292 | the loop. */ | |
7293 | isec = 0; | |
7294 | do | |
7295 | { | |
bc67d8a6 | 7296 | map->count = 0; |
9933dc52 | 7297 | suggested_lma = NULL; |
252b5132 RH |
7298 | |
7299 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7300 | for (j = 0; j < section_count; j++) |
252b5132 | 7301 | { |
bc67d8a6 | 7302 | section = sections[j]; |
252b5132 | 7303 | |
bc67d8a6 | 7304 | if (section == NULL) |
252b5132 RH |
7305 | continue; |
7306 | ||
bc67d8a6 | 7307 | output_section = section->output_section; |
252b5132 | 7308 | |
bc67d8a6 | 7309 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7310 | |
bc67d8a6 NC |
7311 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7312 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7313 | { |
bc67d8a6 | 7314 | if (map->count == 0) |
252b5132 RH |
7315 | { |
7316 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7317 | the beginning of the segment, then something is |
7318 | wrong. */ | |
9933dc52 AM |
7319 | if (align_power (map->p_paddr |
7320 | + (map->includes_filehdr | |
7321 | ? iehdr->e_ehsize : 0) | |
7322 | + (map->includes_phdrs | |
7323 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7324 | : 0), | |
7325 | output_section->alignment_power) | |
7326 | != output_section->lma) | |
252b5132 RH |
7327 | abort (); |
7328 | } | |
7329 | else | |
7330 | { | |
0067a569 | 7331 | asection *prev_sec; |
252b5132 | 7332 | |
bc67d8a6 | 7333 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7334 | |
7335 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7336 | and the start of this section is more than |
7337 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7338 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7339 | maxpagesize) |
caf47ea6 | 7340 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7341 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7342 | > output_section->lma)) |
252b5132 | 7343 | { |
9933dc52 AM |
7344 | if (suggested_lma == NULL) |
7345 | suggested_lma = output_section; | |
252b5132 RH |
7346 | |
7347 | continue; | |
7348 | } | |
7349 | } | |
7350 | ||
bc67d8a6 | 7351 | map->sections[map->count++] = output_section; |
252b5132 RH |
7352 | ++isec; |
7353 | sections[j] = NULL; | |
9933dc52 AM |
7354 | if (segment->p_type == PT_LOAD) |
7355 | section->segment_mark = TRUE; | |
0067a569 | 7356 | } |
9933dc52 AM |
7357 | else if (suggested_lma == NULL) |
7358 | suggested_lma = output_section; | |
252b5132 RH |
7359 | } |
7360 | ||
beab4532 NC |
7361 | /* PR 23932. A corrupt input file may contain sections that cannot |
7362 | be assigned to any segment - because for example they have a | |
7363 | negative size - or segments that do not contain any sections. */ | |
7364 | if (map->count == 0) | |
7365 | { | |
7366 | bfd_set_error (bfd_error_bad_value); | |
7367 | free (sections); | |
7368 | return FALSE; | |
7369 | } | |
252b5132 RH |
7370 | |
7371 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7372 | *pointer_to_map = map; |
7373 | pointer_to_map = &map->next; | |
252b5132 | 7374 | |
bc67d8a6 | 7375 | if (isec < section_count) |
252b5132 RH |
7376 | { |
7377 | /* We still have not allocated all of the sections to | |
7378 | segments. Create a new segment here, initialise it | |
7379 | and carry on looping. */ | |
00bee008 AM |
7380 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7381 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
5964fc3a | 7382 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7383 | if (map == NULL) |
5ed6aba4 NC |
7384 | { |
7385 | free (sections); | |
7386 | return FALSE; | |
7387 | } | |
252b5132 RH |
7388 | |
7389 | /* Initialise the fields of the segment map. Set the physical | |
7390 | physical address to the LMA of the first section that has | |
7391 | not yet been assigned. */ | |
0067a569 AM |
7392 | map->next = NULL; |
7393 | map->p_type = segment->p_type; | |
7394 | map->p_flags = segment->p_flags; | |
7395 | map->p_flags_valid = 1; | |
9933dc52 | 7396 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7397 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7398 | map->includes_filehdr = 0; |
0067a569 | 7399 | map->includes_phdrs = 0; |
252b5132 RH |
7400 | } |
7401 | } | |
bc67d8a6 | 7402 | while (isec < section_count); |
252b5132 RH |
7403 | |
7404 | free (sections); | |
7405 | } | |
7406 | ||
12bd6957 | 7407 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7408 | |
7409 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7410 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7411 | the offset if necessary. */ |
7412 | if (phdr_adjust_seg != NULL) | |
7413 | { | |
7414 | unsigned int count; | |
c044fabd | 7415 | |
bc67d8a6 | 7416 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7417 | count++; |
252b5132 | 7418 | |
bc67d8a6 NC |
7419 | if (count > phdr_adjust_num) |
7420 | phdr_adjust_seg->p_paddr | |
7421 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7422 | |
7423 | for (map = map_first; map != NULL; map = map->next) | |
7424 | if (map->p_type == PT_PHDR) | |
7425 | { | |
7426 | bfd_vma adjust | |
7427 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7428 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7429 | break; | |
7430 | } | |
bc67d8a6 | 7431 | } |
c044fabd | 7432 | |
bc67d8a6 | 7433 | #undef SEGMENT_END |
eecdbe52 | 7434 | #undef SECTION_SIZE |
bc67d8a6 NC |
7435 | #undef IS_CONTAINED_BY_VMA |
7436 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7437 | #undef IS_NOTE |
252b5132 | 7438 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7439 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7440 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7441 | #undef INCLUDE_SECTION_IN_SEGMENT |
7442 | #undef SEGMENT_AFTER_SEGMENT | |
7443 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7444 | return TRUE; |
252b5132 RH |
7445 | } |
7446 | ||
84d1d650 L |
7447 | /* Copy ELF program header information. */ |
7448 | ||
7449 | static bfd_boolean | |
7450 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7451 | { | |
7452 | Elf_Internal_Ehdr *iehdr; | |
7453 | struct elf_segment_map *map; | |
7454 | struct elf_segment_map *map_first; | |
7455 | struct elf_segment_map **pointer_to_map; | |
7456 | Elf_Internal_Phdr *segment; | |
7457 | unsigned int i; | |
7458 | unsigned int num_segments; | |
7459 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7460 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7461 | |
7462 | iehdr = elf_elfheader (ibfd); | |
7463 | ||
7464 | map_first = NULL; | |
7465 | pointer_to_map = &map_first; | |
7466 | ||
88967714 AM |
7467 | /* If all the segment p_paddr fields are zero, don't set |
7468 | map->p_paddr_valid. */ | |
7469 | p_paddr_valid = FALSE; | |
84d1d650 | 7470 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7471 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7472 | i < num_segments; | |
7473 | i++, segment++) | |
7474 | if (segment->p_paddr != 0) | |
7475 | { | |
7476 | p_paddr_valid = TRUE; | |
7477 | break; | |
7478 | } | |
7479 | ||
84d1d650 L |
7480 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7481 | i < num_segments; | |
7482 | i++, segment++) | |
7483 | { | |
7484 | asection *section; | |
7485 | unsigned int section_count; | |
7486 | bfd_size_type amt; | |
7487 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 7488 | asection *first_section = NULL; |
a76e6f2f | 7489 | asection *lowest_section; |
84d1d650 | 7490 | |
84d1d650 L |
7491 | /* Compute how many sections are in this segment. */ |
7492 | for (section = ibfd->sections, section_count = 0; | |
7493 | section != NULL; | |
7494 | section = section->next) | |
7495 | { | |
7496 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7497 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7498 | { |
a76e6f2f AM |
7499 | if (first_section == NULL) |
7500 | first_section = section; | |
3271a814 NS |
7501 | section_count++; |
7502 | } | |
84d1d650 L |
7503 | } |
7504 | ||
7505 | /* Allocate a segment map big enough to contain | |
7506 | all of the sections we have selected. */ | |
00bee008 AM |
7507 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7508 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 7509 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7510 | if (map == NULL) |
7511 | return FALSE; | |
7512 | ||
7513 | /* Initialize the fields of the output segment map with the | |
7514 | input segment. */ | |
7515 | map->next = NULL; | |
7516 | map->p_type = segment->p_type; | |
7517 | map->p_flags = segment->p_flags; | |
7518 | map->p_flags_valid = 1; | |
7519 | map->p_paddr = segment->p_paddr; | |
88967714 | 7520 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7521 | map->p_align = segment->p_align; |
7522 | map->p_align_valid = 1; | |
3271a814 | 7523 | map->p_vaddr_offset = 0; |
84d1d650 | 7524 | |
04c3a755 NS |
7525 | if (map->p_type == PT_GNU_RELRO |
7526 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7527 | { |
7528 | /* The PT_GNU_RELRO segment may contain the first a few | |
7529 | bytes in the .got.plt section even if the whole .got.plt | |
7530 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7531 | change the size of the PT_GNU_RELRO segment. |
7532 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7533 | systems. */ | |
9433b9b1 | 7534 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7535 | map->p_size_valid = 1; |
7536 | } | |
7537 | ||
84d1d650 L |
7538 | /* Determine if this segment contains the ELF file header |
7539 | and if it contains the program headers themselves. */ | |
7540 | map->includes_filehdr = (segment->p_offset == 0 | |
7541 | && segment->p_filesz >= iehdr->e_ehsize); | |
7542 | ||
7543 | map->includes_phdrs = 0; | |
7544 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7545 | { | |
7546 | map->includes_phdrs = | |
7547 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7548 | && (segment->p_offset + segment->p_filesz | |
7549 | >= ((bfd_vma) iehdr->e_phoff | |
7550 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7551 | ||
7552 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7553 | phdr_included = TRUE; | |
7554 | } | |
7555 | ||
bbefd0a9 | 7556 | lowest_section = NULL; |
84d1d650 L |
7557 | if (section_count != 0) |
7558 | { | |
7559 | unsigned int isec = 0; | |
7560 | ||
53020534 | 7561 | for (section = first_section; |
84d1d650 L |
7562 | section != NULL; |
7563 | section = section->next) | |
7564 | { | |
7565 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7566 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7567 | { |
7568 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7569 | if ((section->flags & SEC_ALLOC) != 0) |
7570 | { | |
7571 | bfd_vma seg_off; | |
7572 | ||
bbefd0a9 AM |
7573 | if (lowest_section == NULL |
7574 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7575 | lowest_section = section; |
7576 | ||
a76e6f2f AM |
7577 | /* Section lmas are set up from PT_LOAD header |
7578 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7579 | If this header has a p_paddr that disagrees | |
7580 | with the section lma, flag the p_paddr as | |
7581 | invalid. */ | |
7582 | if ((section->flags & SEC_LOAD) != 0) | |
7583 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7584 | else | |
7585 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7586 | if (section->lma - segment->p_paddr != seg_off) | |
7587 | map->p_paddr_valid = FALSE; | |
7588 | } | |
53020534 L |
7589 | if (isec == section_count) |
7590 | break; | |
7591 | } | |
84d1d650 L |
7592 | } |
7593 | } | |
7594 | ||
5d695627 AM |
7595 | if (section_count == 0) |
7596 | map->p_vaddr_offset = segment->p_vaddr; | |
30fe1832 AM |
7597 | else if (map->p_paddr_valid) |
7598 | { | |
7599 | /* Account for padding before the first section in the segment. */ | |
7600 | bfd_vma hdr_size = 0; | |
7601 | if (map->includes_filehdr) | |
7602 | hdr_size = iehdr->e_ehsize; | |
7603 | if (map->includes_phdrs) | |
7604 | hdr_size += iehdr->e_phnum * iehdr->e_phentsize; | |
7605 | ||
7606 | map->p_vaddr_offset = (map->p_paddr + hdr_size | |
7607 | - (lowest_section ? lowest_section->lma : 0)); | |
7608 | } | |
a76e6f2f | 7609 | |
84d1d650 L |
7610 | map->count = section_count; |
7611 | *pointer_to_map = map; | |
7612 | pointer_to_map = &map->next; | |
7613 | } | |
7614 | ||
12bd6957 | 7615 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7616 | return TRUE; |
7617 | } | |
7618 | ||
7619 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7620 | information. */ | |
7621 | ||
7622 | static bfd_boolean | |
7623 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7624 | { | |
84d1d650 L |
7625 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7626 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7627 | return TRUE; | |
7628 | ||
7629 | if (elf_tdata (ibfd)->phdr == NULL) | |
7630 | return TRUE; | |
7631 | ||
7632 | if (ibfd->xvec == obfd->xvec) | |
7633 | { | |
cb3ff1e5 NC |
7634 | /* Check to see if any sections in the input BFD |
7635 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7636 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7637 | asection *section, *osec; |
7638 | unsigned int i, num_segments; | |
7639 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7640 | const struct elf_backend_data *bed; |
7641 | ||
7642 | bed = get_elf_backend_data (ibfd); | |
7643 | ||
7644 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7645 | if (bed->want_p_paddr_set_to_zero) | |
7646 | goto rewrite; | |
84d1d650 L |
7647 | |
7648 | /* Initialize the segment mark field. */ | |
7649 | for (section = obfd->sections; section != NULL; | |
7650 | section = section->next) | |
7651 | section->segment_mark = FALSE; | |
7652 | ||
7653 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7654 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7655 | i < num_segments; | |
7656 | i++, segment++) | |
7657 | { | |
5f6999aa NC |
7658 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7659 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7660 | which severly confuses things, so always regenerate the segment | |
7661 | map in this case. */ | |
7662 | if (segment->p_paddr == 0 | |
7663 | && segment->p_memsz == 0 | |
7664 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7665 | goto rewrite; |
5f6999aa | 7666 | |
84d1d650 L |
7667 | for (section = ibfd->sections; |
7668 | section != NULL; section = section->next) | |
7669 | { | |
7670 | /* We mark the output section so that we know it comes | |
7671 | from the input BFD. */ | |
7672 | osec = section->output_section; | |
7673 | if (osec) | |
7674 | osec->segment_mark = TRUE; | |
7675 | ||
7676 | /* Check if this section is covered by the segment. */ | |
7677 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7678 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7679 | { |
7680 | /* FIXME: Check if its output section is changed or | |
7681 | removed. What else do we need to check? */ | |
7682 | if (osec == NULL | |
7683 | || section->flags != osec->flags | |
7684 | || section->lma != osec->lma | |
7685 | || section->vma != osec->vma | |
7686 | || section->size != osec->size | |
7687 | || section->rawsize != osec->rawsize | |
7688 | || section->alignment_power != osec->alignment_power) | |
7689 | goto rewrite; | |
7690 | } | |
7691 | } | |
7692 | } | |
7693 | ||
cb3ff1e5 | 7694 | /* Check to see if any output section do not come from the |
84d1d650 L |
7695 | input BFD. */ |
7696 | for (section = obfd->sections; section != NULL; | |
7697 | section = section->next) | |
7698 | { | |
535b785f | 7699 | if (!section->segment_mark) |
84d1d650 L |
7700 | goto rewrite; |
7701 | else | |
7702 | section->segment_mark = FALSE; | |
7703 | } | |
7704 | ||
7705 | return copy_elf_program_header (ibfd, obfd); | |
7706 | } | |
7707 | ||
7708 | rewrite: | |
f1d85785 L |
7709 | if (ibfd->xvec == obfd->xvec) |
7710 | { | |
7711 | /* When rewriting program header, set the output maxpagesize to | |
7712 | the maximum alignment of input PT_LOAD segments. */ | |
7713 | Elf_Internal_Phdr *segment; | |
7714 | unsigned int i; | |
7715 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7716 | bfd_vma maxpagesize = 0; | |
7717 | ||
7718 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7719 | i < num_segments; | |
7720 | i++, segment++) | |
7721 | if (segment->p_type == PT_LOAD | |
7722 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7723 | { |
7724 | /* PR 17512: file: f17299af. */ | |
7725 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7726 | /* xgettext:c-format */ |
2dcf00ce AM |
7727 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7728 | PRIx64 " is too large"), | |
7729 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7730 | else |
7731 | maxpagesize = segment->p_align; | |
7732 | } | |
f1d85785 L |
7733 | |
7734 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7735 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7736 | } | |
7737 | ||
84d1d650 L |
7738 | return rewrite_elf_program_header (ibfd, obfd); |
7739 | } | |
7740 | ||
ccd2ec6a L |
7741 | /* Initialize private output section information from input section. */ |
7742 | ||
7743 | bfd_boolean | |
7744 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7745 | asection *isec, | |
7746 | bfd *obfd, | |
7747 | asection *osec, | |
7748 | struct bfd_link_info *link_info) | |
7749 | ||
7750 | { | |
7751 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7752 | bfd_boolean final_link = (link_info != NULL |
7753 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7754 | |
7755 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7756 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7757 | return TRUE; | |
7758 | ||
ba85c43e NC |
7759 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7760 | ||
dfa7b0b8 AM |
7761 | /* For objcopy and relocatable link, don't copy the output ELF |
7762 | section type from input if the output BFD section flags have been | |
7763 | set to something different. For a final link allow some flags | |
7764 | that the linker clears to differ. */ | |
42bb2e33 | 7765 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7766 | && (osec->flags == isec->flags |
7767 | || (final_link | |
7768 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7769 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7770 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7771 | |
7772 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7773 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7774 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7775 | |
a91e1603 | 7776 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7777 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7778 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7779 | elf_section_data (osec)->this_hdr.sh_info |
7780 | = elf_section_data (isec)->this_hdr.sh_info; | |
7781 | ||
ccd2ec6a L |
7782 | /* Set things up for objcopy and relocatable link. The output |
7783 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7784 | to the input group members. Ignore linker created group section. | |
7785 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7786 | if ((link_info == NULL |
7787 | || !link_info->resolve_section_groups) | |
7788 | && (elf_sec_group (isec) == NULL | |
7789 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7790 | { |
7bdf4127 AB |
7791 | if (elf_section_flags (isec) & SHF_GROUP) |
7792 | elf_section_flags (osec) |= SHF_GROUP; | |
7793 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7794 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7795 | } |
7796 | ||
7bdf4127 AB |
7797 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7798 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7799 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7800 | & SHF_COMPRESSED); | |
7801 | ||
ccd2ec6a L |
7802 | ihdr = &elf_section_data (isec)->this_hdr; |
7803 | ||
7804 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7805 | don't use the output section of the linked-to section since it | |
7806 | may be NULL at this point. */ | |
7807 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7808 | { | |
7809 | ohdr = &elf_section_data (osec)->this_hdr; | |
7810 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7811 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7812 | } | |
7813 | ||
7814 | osec->use_rela_p = isec->use_rela_p; | |
7815 | ||
7816 | return TRUE; | |
7817 | } | |
7818 | ||
252b5132 RH |
7819 | /* Copy private section information. This copies over the entsize |
7820 | field, and sometimes the info field. */ | |
7821 | ||
b34976b6 | 7822 | bfd_boolean |
217aa764 AM |
7823 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7824 | asection *isec, | |
7825 | bfd *obfd, | |
7826 | asection *osec) | |
252b5132 RH |
7827 | { |
7828 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7829 | ||
7830 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7831 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7832 | return TRUE; |
252b5132 | 7833 | |
252b5132 RH |
7834 | ihdr = &elf_section_data (isec)->this_hdr; |
7835 | ohdr = &elf_section_data (osec)->this_hdr; | |
7836 | ||
7837 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7838 | ||
7839 | if (ihdr->sh_type == SHT_SYMTAB | |
7840 | || ihdr->sh_type == SHT_DYNSYM | |
7841 | || ihdr->sh_type == SHT_GNU_verneed | |
7842 | || ihdr->sh_type == SHT_GNU_verdef) | |
7843 | ohdr->sh_info = ihdr->sh_info; | |
7844 | ||
ccd2ec6a L |
7845 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7846 | NULL); | |
252b5132 RH |
7847 | } |
7848 | ||
d0bf826b AM |
7849 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7850 | necessary if we are removing either the SHT_GROUP section or any of | |
7851 | the group member sections. DISCARDED is the value that a section's | |
7852 | output_section has if the section will be discarded, NULL when this | |
7853 | function is called from objcopy, bfd_abs_section_ptr when called | |
7854 | from the linker. */ | |
80fccad2 BW |
7855 | |
7856 | bfd_boolean | |
d0bf826b | 7857 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7858 | { |
30288845 AM |
7859 | asection *isec; |
7860 | ||
30288845 | 7861 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7862 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7863 | { |
7864 | asection *first = elf_next_in_group (isec); | |
7865 | asection *s = first; | |
d0bf826b AM |
7866 | bfd_size_type removed = 0; |
7867 | ||
30288845 AM |
7868 | while (s != NULL) |
7869 | { | |
415f38a6 AM |
7870 | /* If this member section is being output but the |
7871 | SHT_GROUP section is not, then clear the group info | |
7872 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7873 | if (s->output_section != discarded |
7874 | && isec->output_section == discarded) | |
30288845 AM |
7875 | { |
7876 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7877 | elf_group_name (s->output_section) = NULL; | |
7878 | } | |
415f38a6 AM |
7879 | /* Conversely, if the member section is not being output |
7880 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7881 | else if (s->output_section == discarded |
7882 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7883 | { |
7884 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7885 | removed += 4; | |
7886 | if (elf_sec->rel.hdr != NULL | |
7887 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7888 | removed += 4; | |
7889 | if (elf_sec->rela.hdr != NULL | |
7890 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7891 | removed += 4; | |
7892 | } | |
30288845 AM |
7893 | s = elf_next_in_group (s); |
7894 | if (s == first) | |
7895 | break; | |
7896 | } | |
d0bf826b AM |
7897 | if (removed != 0) |
7898 | { | |
7899 | if (discarded != NULL) | |
7900 | { | |
7901 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7902 | adjust the input section size. */ |
d0bf826b AM |
7903 | if (isec->rawsize == 0) |
7904 | isec->rawsize = isec->size; | |
7905 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7906 | if (isec->size <= 4) |
7907 | { | |
7908 | isec->size = 0; | |
7909 | isec->flags |= SEC_EXCLUDE; | |
7910 | } | |
d0bf826b AM |
7911 | } |
7912 | else | |
7913 | { | |
7914 | /* Adjust the output section size when called from | |
7915 | objcopy. */ | |
7916 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7917 | if (isec->output_section->size <= 4) |
7918 | { | |
7919 | isec->output_section->size = 0; | |
7920 | isec->output_section->flags |= SEC_EXCLUDE; | |
7921 | } | |
d0bf826b AM |
7922 | } |
7923 | } | |
30288845 AM |
7924 | } |
7925 | ||
80fccad2 BW |
7926 | return TRUE; |
7927 | } | |
7928 | ||
d0bf826b AM |
7929 | /* Copy private header information. */ |
7930 | ||
7931 | bfd_boolean | |
7932 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7933 | { | |
7934 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7935 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7936 | return TRUE; | |
7937 | ||
7938 | /* Copy over private BFD data if it has not already been copied. | |
7939 | This must be done here, rather than in the copy_private_bfd_data | |
7940 | entry point, because the latter is called after the section | |
7941 | contents have been set, which means that the program headers have | |
7942 | already been worked out. */ | |
12bd6957 | 7943 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7944 | { |
7945 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7946 | return FALSE; | |
7947 | } | |
7948 | ||
7949 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7950 | } | |
7951 | ||
252b5132 RH |
7952 | /* Copy private symbol information. If this symbol is in a section |
7953 | which we did not map into a BFD section, try to map the section | |
7954 | index correctly. We use special macro definitions for the mapped | |
7955 | section indices; these definitions are interpreted by the | |
7956 | swap_out_syms function. */ | |
7957 | ||
9ad5cbcf AM |
7958 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7959 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7960 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7961 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7962 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7963 | |
b34976b6 | 7964 | bfd_boolean |
217aa764 AM |
7965 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7966 | asymbol *isymarg, | |
7967 | bfd *obfd, | |
7968 | asymbol *osymarg) | |
252b5132 RH |
7969 | { |
7970 | elf_symbol_type *isym, *osym; | |
7971 | ||
7972 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7973 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7974 | return TRUE; |
252b5132 RH |
7975 | |
7976 | isym = elf_symbol_from (ibfd, isymarg); | |
7977 | osym = elf_symbol_from (obfd, osymarg); | |
7978 | ||
7979 | if (isym != NULL | |
8424d8f5 | 7980 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7981 | && osym != NULL |
7982 | && bfd_is_abs_section (isym->symbol.section)) | |
7983 | { | |
7984 | unsigned int shndx; | |
7985 | ||
7986 | shndx = isym->internal_elf_sym.st_shndx; | |
7987 | if (shndx == elf_onesymtab (ibfd)) | |
7988 | shndx = MAP_ONESYMTAB; | |
7989 | else if (shndx == elf_dynsymtab (ibfd)) | |
7990 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7991 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7992 | shndx = MAP_STRTAB; |
12bd6957 | 7993 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7994 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7995 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7996 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7997 | osym->internal_elf_sym.st_shndx = shndx; |
7998 | } | |
7999 | ||
b34976b6 | 8000 | return TRUE; |
252b5132 RH |
8001 | } |
8002 | ||
8003 | /* Swap out the symbols. */ | |
8004 | ||
b34976b6 | 8005 | static bfd_boolean |
217aa764 | 8006 | swap_out_syms (bfd *abfd, |
ef10c3ac | 8007 | struct elf_strtab_hash **sttp, |
217aa764 | 8008 | int relocatable_p) |
252b5132 | 8009 | { |
9c5bfbb7 | 8010 | const struct elf_backend_data *bed; |
079e9a2f AM |
8011 | int symcount; |
8012 | asymbol **syms; | |
ef10c3ac | 8013 | struct elf_strtab_hash *stt; |
079e9a2f | 8014 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 8015 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 8016 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 8017 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
8018 | bfd_byte *outbound_syms; |
8019 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
8020 | unsigned long outbound_syms_index; |
8021 | unsigned long outbound_shndx_index; | |
079e9a2f | 8022 | int idx; |
12bd6957 | 8023 | unsigned int num_locals; |
079e9a2f | 8024 | bfd_size_type amt; |
174fd7f9 | 8025 | bfd_boolean name_local_sections; |
252b5132 | 8026 | |
12bd6957 | 8027 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 8028 | return FALSE; |
252b5132 | 8029 | |
c044fabd | 8030 | /* Dump out the symtabs. */ |
ef10c3ac | 8031 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 8032 | if (stt == NULL) |
b34976b6 | 8033 | return FALSE; |
252b5132 | 8034 | |
079e9a2f AM |
8035 | bed = get_elf_backend_data (abfd); |
8036 | symcount = bfd_get_symcount (abfd); | |
8037 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
8038 | symtab_hdr->sh_type = SHT_SYMTAB; | |
8039 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
8040 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 8041 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 8042 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
8043 | |
8044 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
8045 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
8046 | ||
ef10c3ac | 8047 | /* Allocate buffer to swap out the .strtab section. */ |
7a6e0d89 AM |
8048 | symstrtab = (struct elf_sym_strtab *) bfd_malloc2 (symcount + 1, |
8049 | sizeof (*symstrtab)); | |
ef10c3ac L |
8050 | if (symstrtab == NULL) |
8051 | { | |
8052 | _bfd_elf_strtab_free (stt); | |
8053 | return FALSE; | |
8054 | } | |
8055 | ||
a50b1753 | 8056 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
07d6d2b8 | 8057 | bed->s->sizeof_sym); |
079e9a2f | 8058 | if (outbound_syms == NULL) |
5ed6aba4 | 8059 | { |
ef10c3ac L |
8060 | error_return: |
8061 | _bfd_elf_strtab_free (stt); | |
8062 | free (symstrtab); | |
5ed6aba4 NC |
8063 | return FALSE; |
8064 | } | |
217aa764 | 8065 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8066 | outbound_syms_index = 0; |
252b5132 | 8067 | |
9ad5cbcf | 8068 | outbound_shndx = NULL; |
ef10c3ac | 8069 | outbound_shndx_index = 0; |
6a40cf0c NC |
8070 | |
8071 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8072 | { |
6a40cf0c NC |
8073 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8074 | if (symtab_shndx_hdr->sh_name != 0) | |
8075 | { | |
8076 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
8077 | outbound_shndx = (bfd_byte *) | |
8078 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
8079 | if (outbound_shndx == NULL) | |
8080 | goto error_return; | |
5ed6aba4 | 8081 | |
6a40cf0c NC |
8082 | symtab_shndx_hdr->contents = outbound_shndx; |
8083 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8084 | symtab_shndx_hdr->sh_size = amt; | |
8085 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8086 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8087 | } | |
8088 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8089 | } |
8090 | ||
589e6347 | 8091 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8092 | { |
8093 | /* Fill in zeroth symbol and swap it out. */ | |
8094 | Elf_Internal_Sym sym; | |
8095 | sym.st_name = 0; | |
8096 | sym.st_value = 0; | |
8097 | sym.st_size = 0; | |
8098 | sym.st_info = 0; | |
8099 | sym.st_other = 0; | |
8100 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8101 | sym.st_target_internal = 0; |
ef10c3ac L |
8102 | symstrtab[0].sym = sym; |
8103 | symstrtab[0].dest_index = outbound_syms_index; | |
8104 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8105 | outbound_syms_index++; | |
9ad5cbcf | 8106 | if (outbound_shndx != NULL) |
ef10c3ac | 8107 | outbound_shndx_index++; |
079e9a2f | 8108 | } |
252b5132 | 8109 | |
174fd7f9 RS |
8110 | name_local_sections |
8111 | = (bed->elf_backend_name_local_section_symbols | |
8112 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8113 | ||
079e9a2f | 8114 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8115 | for (idx = 0; idx < symcount;) |
252b5132 | 8116 | { |
252b5132 | 8117 | Elf_Internal_Sym sym; |
079e9a2f AM |
8118 | bfd_vma value = syms[idx]->value; |
8119 | elf_symbol_type *type_ptr; | |
8120 | flagword flags = syms[idx]->flags; | |
8121 | int type; | |
252b5132 | 8122 | |
174fd7f9 RS |
8123 | if (!name_local_sections |
8124 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8125 | { |
8126 | /* Local section symbols have no name. */ | |
ef10c3ac | 8127 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8128 | } |
8129 | else | |
8130 | { | |
ef10c3ac L |
8131 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8132 | to get the final offset for st_name. */ | |
8133 | sym.st_name | |
8134 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
8135 | FALSE); | |
079e9a2f | 8136 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8137 | goto error_return; |
079e9a2f | 8138 | } |
252b5132 | 8139 | |
079e9a2f | 8140 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 8141 | |
079e9a2f AM |
8142 | if ((flags & BSF_SECTION_SYM) == 0 |
8143 | && bfd_is_com_section (syms[idx]->section)) | |
8144 | { | |
8145 | /* ELF common symbols put the alignment into the `value' field, | |
8146 | and the size into the `size' field. This is backwards from | |
8147 | how BFD handles it, so reverse it here. */ | |
8148 | sym.st_size = value; | |
8149 | if (type_ptr == NULL | |
8150 | || type_ptr->internal_elf_sym.st_value == 0) | |
8151 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8152 | else | |
8153 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8154 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8155 | (abfd, syms[idx]->section); | |
8156 | } | |
8157 | else | |
8158 | { | |
8159 | asection *sec = syms[idx]->section; | |
cb33740c | 8160 | unsigned int shndx; |
252b5132 | 8161 | |
079e9a2f AM |
8162 | if (sec->output_section) |
8163 | { | |
8164 | value += sec->output_offset; | |
8165 | sec = sec->output_section; | |
8166 | } | |
589e6347 | 8167 | |
079e9a2f AM |
8168 | /* Don't add in the section vma for relocatable output. */ |
8169 | if (! relocatable_p) | |
8170 | value += sec->vma; | |
8171 | sym.st_value = value; | |
8172 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8173 | ||
8174 | if (bfd_is_abs_section (sec) | |
8175 | && type_ptr != NULL | |
8176 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8177 | { | |
8178 | /* This symbol is in a real ELF section which we did | |
8179 | not create as a BFD section. Undo the mapping done | |
8180 | by copy_private_symbol_data. */ | |
8181 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8182 | switch (shndx) | |
8183 | { | |
8184 | case MAP_ONESYMTAB: | |
8185 | shndx = elf_onesymtab (abfd); | |
8186 | break; | |
8187 | case MAP_DYNSYMTAB: | |
8188 | shndx = elf_dynsymtab (abfd); | |
8189 | break; | |
8190 | case MAP_STRTAB: | |
12bd6957 | 8191 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8192 | break; |
8193 | case MAP_SHSTRTAB: | |
12bd6957 | 8194 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8195 | break; |
9ad5cbcf | 8196 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8197 | if (elf_symtab_shndx_list (abfd)) |
8198 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8199 | break; |
079e9a2f | 8200 | default: |
15bc576a | 8201 | shndx = SHN_ABS; |
079e9a2f AM |
8202 | break; |
8203 | } | |
8204 | } | |
8205 | else | |
8206 | { | |
8207 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8208 | |
cb33740c | 8209 | if (shndx == SHN_BAD) |
079e9a2f AM |
8210 | { |
8211 | asection *sec2; | |
8212 | ||
8213 | /* Writing this would be a hell of a lot easier if | |
8214 | we had some decent documentation on bfd, and | |
8215 | knew what to expect of the library, and what to | |
8216 | demand of applications. For example, it | |
8217 | appears that `objcopy' might not set the | |
8218 | section of a symbol to be a section that is | |
8219 | actually in the output file. */ | |
8220 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8221 | if (sec2 != NULL) |
8222 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8223 | if (shndx == SHN_BAD) | |
589e6347 | 8224 | { |
695344c0 | 8225 | /* xgettext:c-format */ |
9793eb77 AM |
8226 | _bfd_error_handler |
8227 | (_("unable to find equivalent output section" | |
8228 | " for symbol '%s' from section '%s'"), | |
8229 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8230 | sec->name); | |
811072d8 | 8231 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8232 | goto error_return; |
589e6347 | 8233 | } |
079e9a2f AM |
8234 | } |
8235 | } | |
252b5132 | 8236 | |
079e9a2f AM |
8237 | sym.st_shndx = shndx; |
8238 | } | |
252b5132 | 8239 | |
13ae64f3 JJ |
8240 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8241 | type = STT_TLS; | |
d8045f23 NC |
8242 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8243 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8244 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8245 | type = STT_FUNC; |
8246 | else if ((flags & BSF_OBJECT) != 0) | |
8247 | type = STT_OBJECT; | |
d9352518 DB |
8248 | else if ((flags & BSF_RELC) != 0) |
8249 | type = STT_RELC; | |
8250 | else if ((flags & BSF_SRELC) != 0) | |
8251 | type = STT_SRELC; | |
079e9a2f AM |
8252 | else |
8253 | type = STT_NOTYPE; | |
252b5132 | 8254 | |
13ae64f3 JJ |
8255 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8256 | type = STT_TLS; | |
8257 | ||
589e6347 | 8258 | /* Processor-specific types. */ |
079e9a2f AM |
8259 | if (type_ptr != NULL |
8260 | && bed->elf_backend_get_symbol_type) | |
8261 | type = ((*bed->elf_backend_get_symbol_type) | |
8262 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8263 | |
079e9a2f AM |
8264 | if (flags & BSF_SECTION_SYM) |
8265 | { | |
8266 | if (flags & BSF_GLOBAL) | |
8267 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8268 | else | |
8269 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8270 | } | |
8271 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8272 | { |
b8871f35 L |
8273 | if (type != STT_TLS) |
8274 | { | |
8275 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8276 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8277 | ? STT_COMMON : STT_OBJECT); | |
8278 | else | |
8279 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8280 | ? STT_COMMON : STT_OBJECT); | |
8281 | } | |
8282 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8283 | } |
079e9a2f AM |
8284 | else if (bfd_is_und_section (syms[idx]->section)) |
8285 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8286 | ? STB_WEAK | |
8287 | : STB_GLOBAL), | |
8288 | type); | |
8289 | else if (flags & BSF_FILE) | |
8290 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8291 | else | |
8292 | { | |
8293 | int bind = STB_LOCAL; | |
252b5132 | 8294 | |
079e9a2f AM |
8295 | if (flags & BSF_LOCAL) |
8296 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8297 | else if (flags & BSF_GNU_UNIQUE) |
8298 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8299 | else if (flags & BSF_WEAK) |
8300 | bind = STB_WEAK; | |
8301 | else if (flags & BSF_GLOBAL) | |
8302 | bind = STB_GLOBAL; | |
252b5132 | 8303 | |
079e9a2f AM |
8304 | sym.st_info = ELF_ST_INFO (bind, type); |
8305 | } | |
252b5132 | 8306 | |
079e9a2f | 8307 | if (type_ptr != NULL) |
35fc36a8 RS |
8308 | { |
8309 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8310 | sym.st_target_internal | |
8311 | = type_ptr->internal_elf_sym.st_target_internal; | |
8312 | } | |
079e9a2f | 8313 | else |
35fc36a8 RS |
8314 | { |
8315 | sym.st_other = 0; | |
8316 | sym.st_target_internal = 0; | |
8317 | } | |
252b5132 | 8318 | |
ef10c3ac L |
8319 | idx++; |
8320 | symstrtab[idx].sym = sym; | |
8321 | symstrtab[idx].dest_index = outbound_syms_index; | |
8322 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8323 | ||
8324 | outbound_syms_index++; | |
9ad5cbcf | 8325 | if (outbound_shndx != NULL) |
ef10c3ac L |
8326 | outbound_shndx_index++; |
8327 | } | |
8328 | ||
8329 | /* Finalize the .strtab section. */ | |
8330 | _bfd_elf_strtab_finalize (stt); | |
8331 | ||
8332 | /* Swap out the .strtab section. */ | |
8333 | for (idx = 0; idx <= symcount; idx++) | |
8334 | { | |
8335 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8336 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8337 | elfsym->sym.st_name = 0; | |
8338 | else | |
8339 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8340 | elfsym->sym.st_name); | |
8341 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8342 | (outbound_syms | |
8343 | + (elfsym->dest_index | |
8344 | * bed->s->sizeof_sym)), | |
8345 | (outbound_shndx | |
8346 | + (elfsym->destshndx_index | |
8347 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8348 | } |
ef10c3ac | 8349 | free (symstrtab); |
252b5132 | 8350 | |
079e9a2f | 8351 | *sttp = stt; |
ef10c3ac | 8352 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8353 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8354 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8355 | symstrtab_hdr->sh_addr = 0; |
8356 | symstrtab_hdr->sh_entsize = 0; | |
8357 | symstrtab_hdr->sh_link = 0; | |
8358 | symstrtab_hdr->sh_info = 0; | |
8359 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8360 | |
b34976b6 | 8361 | return TRUE; |
252b5132 RH |
8362 | } |
8363 | ||
8364 | /* Return the number of bytes required to hold the symtab vector. | |
8365 | ||
8366 | Note that we base it on the count plus 1, since we will null terminate | |
8367 | the vector allocated based on this size. However, the ELF symbol table | |
8368 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8369 | ||
8370 | long | |
217aa764 | 8371 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8372 | { |
3a551c7a | 8373 | bfd_size_type symcount; |
252b5132 RH |
8374 | long symtab_size; |
8375 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8376 | ||
8377 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8378 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8379 | { | |
8380 | bfd_set_error (bfd_error_file_too_big); | |
8381 | return -1; | |
8382 | } | |
b99d1833 AM |
8383 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8384 | if (symcount > 0) | |
8385 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8386 | |
8387 | return symtab_size; | |
8388 | } | |
8389 | ||
8390 | long | |
217aa764 | 8391 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8392 | { |
3a551c7a | 8393 | bfd_size_type symcount; |
252b5132 RH |
8394 | long symtab_size; |
8395 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8396 | ||
8397 | if (elf_dynsymtab (abfd) == 0) | |
8398 | { | |
8399 | bfd_set_error (bfd_error_invalid_operation); | |
8400 | return -1; | |
8401 | } | |
8402 | ||
8403 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8404 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8405 | { | |
8406 | bfd_set_error (bfd_error_file_too_big); | |
8407 | return -1; | |
8408 | } | |
b99d1833 AM |
8409 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8410 | if (symcount > 0) | |
8411 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8412 | |
8413 | return symtab_size; | |
8414 | } | |
8415 | ||
8416 | long | |
217aa764 AM |
8417 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8418 | sec_ptr asect) | |
252b5132 | 8419 | { |
242a1159 | 8420 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8421 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8422 | { | |
8423 | bfd_set_error (bfd_error_file_too_big); | |
8424 | return -1; | |
8425 | } | |
242a1159 | 8426 | #endif |
252b5132 RH |
8427 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8428 | } | |
8429 | ||
8430 | /* Canonicalize the relocs. */ | |
8431 | ||
8432 | long | |
217aa764 AM |
8433 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8434 | sec_ptr section, | |
8435 | arelent **relptr, | |
8436 | asymbol **symbols) | |
252b5132 RH |
8437 | { |
8438 | arelent *tblptr; | |
8439 | unsigned int i; | |
9c5bfbb7 | 8440 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8441 | |
b34976b6 | 8442 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8443 | return -1; |
8444 | ||
8445 | tblptr = section->relocation; | |
8446 | for (i = 0; i < section->reloc_count; i++) | |
8447 | *relptr++ = tblptr++; | |
8448 | ||
8449 | *relptr = NULL; | |
8450 | ||
8451 | return section->reloc_count; | |
8452 | } | |
8453 | ||
8454 | long | |
6cee3f79 | 8455 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8456 | { |
9c5bfbb7 | 8457 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8458 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8459 | |
8460 | if (symcount >= 0) | |
ed48ec2e | 8461 | abfd->symcount = symcount; |
252b5132 RH |
8462 | return symcount; |
8463 | } | |
8464 | ||
8465 | long | |
217aa764 AM |
8466 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8467 | asymbol **allocation) | |
252b5132 | 8468 | { |
9c5bfbb7 | 8469 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8470 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8471 | |
8472 | if (symcount >= 0) | |
ed48ec2e | 8473 | abfd->dynsymcount = symcount; |
1f70368c | 8474 | return symcount; |
252b5132 RH |
8475 | } |
8476 | ||
8615f3f2 AM |
8477 | /* Return the size required for the dynamic reloc entries. Any loadable |
8478 | section that was actually installed in the BFD, and has type SHT_REL | |
8479 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8480 | dynamic reloc section. */ | |
252b5132 RH |
8481 | |
8482 | long | |
217aa764 | 8483 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8484 | { |
3a551c7a | 8485 | bfd_size_type count; |
252b5132 RH |
8486 | asection *s; |
8487 | ||
8488 | if (elf_dynsymtab (abfd) == 0) | |
8489 | { | |
8490 | bfd_set_error (bfd_error_invalid_operation); | |
8491 | return -1; | |
8492 | } | |
8493 | ||
3a551c7a | 8494 | count = 1; |
252b5132 | 8495 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8496 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8497 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8498 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a AM |
8499 | { |
8500 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; | |
8501 | if (count > LONG_MAX / sizeof (arelent *)) | |
8502 | { | |
8503 | bfd_set_error (bfd_error_file_too_big); | |
8504 | return -1; | |
8505 | } | |
8506 | } | |
8507 | return count * sizeof (arelent *); | |
252b5132 RH |
8508 | } |
8509 | ||
8615f3f2 AM |
8510 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8511 | dynamic relocations as a single block, although they are actually | |
8512 | associated with particular sections; the interface, which was | |
8513 | designed for SunOS style shared libraries, expects that there is only | |
8514 | one set of dynamic relocs. Any loadable section that was actually | |
8515 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8516 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8517 | |
8518 | long | |
217aa764 AM |
8519 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8520 | arelent **storage, | |
8521 | asymbol **syms) | |
252b5132 | 8522 | { |
217aa764 | 8523 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8524 | asection *s; |
8525 | long ret; | |
8526 | ||
8527 | if (elf_dynsymtab (abfd) == 0) | |
8528 | { | |
8529 | bfd_set_error (bfd_error_invalid_operation); | |
8530 | return -1; | |
8531 | } | |
8532 | ||
8533 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8534 | ret = 0; | |
8535 | for (s = abfd->sections; s != NULL; s = s->next) | |
8536 | { | |
266b05cf | 8537 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8538 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8539 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8540 | { | |
8541 | arelent *p; | |
8542 | long count, i; | |
8543 | ||
b34976b6 | 8544 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8545 | return -1; |
eea6121a | 8546 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8547 | p = s->relocation; |
8548 | for (i = 0; i < count; i++) | |
8549 | *storage++ = p++; | |
8550 | ret += count; | |
8551 | } | |
8552 | } | |
8553 | ||
8554 | *storage = NULL; | |
8555 | ||
8556 | return ret; | |
8557 | } | |
8558 | \f | |
8559 | /* Read in the version information. */ | |
8560 | ||
b34976b6 | 8561 | bfd_boolean |
fc0e6df6 | 8562 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8563 | { |
8564 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
8565 | unsigned int freeidx = 0; |
8566 | ||
8567 | if (elf_dynverref (abfd) != 0) | |
8568 | { | |
8569 | Elf_Internal_Shdr *hdr; | |
8570 | Elf_External_Verneed *everneed; | |
8571 | Elf_Internal_Verneed *iverneed; | |
8572 | unsigned int i; | |
d0fb9a8d | 8573 | bfd_byte *contents_end; |
fc0e6df6 PB |
8574 | |
8575 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8576 | ||
bd61e135 AM |
8577 | if (hdr->sh_info == 0 |
8578 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8579 | { |
601a03ba | 8580 | error_return_bad_verref: |
4eca0228 | 8581 | _bfd_error_handler |
871b3ab2 | 8582 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8583 | bfd_set_error (bfd_error_bad_value); |
d0fb9a8d JJ |
8584 | error_return_verref: |
8585 | elf_tdata (abfd)->verref = NULL; | |
8586 | elf_tdata (abfd)->cverrefs = 0; | |
8587 | goto error_return; | |
8588 | } | |
601a03ba | 8589 | |
7e56c51c NC |
8590 | ufile_ptr filesize = bfd_get_file_size (abfd); |
8591 | if (filesize > 0 && filesize < hdr->sh_size) | |
8592 | { | |
8593 | /* PR 24708: Avoid attempts to allocate a ridiculous amount | |
8594 | of memory. */ | |
8595 | bfd_set_error (bfd_error_no_memory); | |
8596 | _bfd_error_handler | |
8597 | /* xgettext:c-format */ | |
8598 | (_("error: %pB version reference section is too large (%#" PRIx64 " bytes)"), | |
8599 | abfd, (uint64_t) hdr->sh_size); | |
8600 | goto error_return_verref; | |
8601 | } | |
601a03ba AM |
8602 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
8603 | if (contents == NULL) | |
8604 | goto error_return_verref; | |
8605 | ||
fc0e6df6 PB |
8606 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
8607 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 8608 | goto error_return_verref; |
fc0e6df6 | 8609 | |
601a03ba | 8610 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
bd61e135 | 8611 | bfd_alloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); |
601a03ba AM |
8612 | |
8613 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
8614 | goto error_return_verref; |
8615 | ||
8616 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8617 | == sizeof (Elf_External_Vernaux)); | |
8618 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8619 | everneed = (Elf_External_Verneed *) contents; |
8620 | iverneed = elf_tdata (abfd)->verref; | |
8621 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8622 | { | |
8623 | Elf_External_Vernaux *evernaux; | |
8624 | Elf_Internal_Vernaux *ivernaux; | |
8625 | unsigned int j; | |
8626 | ||
8627 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8628 | ||
8629 | iverneed->vn_bfd = abfd; | |
8630 | ||
8631 | iverneed->vn_filename = | |
8632 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8633 | iverneed->vn_file); | |
8634 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8635 | goto error_return_bad_verref; |
fc0e6df6 | 8636 | |
d0fb9a8d JJ |
8637 | if (iverneed->vn_cnt == 0) |
8638 | iverneed->vn_auxptr = NULL; | |
8639 | else | |
8640 | { | |
a50b1753 | 8641 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
07d6d2b8 AM |
8642 | bfd_alloc2 (abfd, iverneed->vn_cnt, |
8643 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
8644 | if (iverneed->vn_auxptr == NULL) |
8645 | goto error_return_verref; | |
8646 | } | |
8647 | ||
8648 | if (iverneed->vn_aux | |
8649 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8650 | goto error_return_bad_verref; |
fc0e6df6 PB |
8651 | |
8652 | evernaux = ((Elf_External_Vernaux *) | |
8653 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8654 | ivernaux = iverneed->vn_auxptr; | |
8655 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8656 | { | |
8657 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8658 | ||
8659 | ivernaux->vna_nodename = | |
8660 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8661 | ivernaux->vna_name); | |
8662 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8663 | goto error_return_bad_verref; |
fc0e6df6 | 8664 | |
25ff461f AM |
8665 | if (ivernaux->vna_other > freeidx) |
8666 | freeidx = ivernaux->vna_other; | |
8667 | ||
8668 | ivernaux->vna_nextptr = NULL; | |
8669 | if (ivernaux->vna_next == 0) | |
8670 | { | |
8671 | iverneed->vn_cnt = j + 1; | |
8672 | break; | |
8673 | } | |
fc0e6df6 PB |
8674 | if (j + 1 < iverneed->vn_cnt) |
8675 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8676 | |
d0fb9a8d JJ |
8677 | if (ivernaux->vna_next |
8678 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8679 | goto error_return_bad_verref; |
d0fb9a8d | 8680 | |
fc0e6df6 PB |
8681 | evernaux = ((Elf_External_Vernaux *) |
8682 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8683 | } |
8684 | ||
25ff461f AM |
8685 | iverneed->vn_nextref = NULL; |
8686 | if (iverneed->vn_next == 0) | |
8687 | break; | |
fc0e6df6 PB |
8688 | if (i + 1 < hdr->sh_info) |
8689 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8690 | |
d0fb9a8d JJ |
8691 | if (iverneed->vn_next |
8692 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8693 | goto error_return_bad_verref; |
d0fb9a8d | 8694 | |
fc0e6df6 PB |
8695 | everneed = ((Elf_External_Verneed *) |
8696 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8697 | } | |
25ff461f | 8698 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8699 | |
8700 | free (contents); | |
8701 | contents = NULL; | |
8702 | } | |
252b5132 RH |
8703 | |
8704 | if (elf_dynverdef (abfd) != 0) | |
8705 | { | |
8706 | Elf_Internal_Shdr *hdr; | |
8707 | Elf_External_Verdef *everdef; | |
8708 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8709 | Elf_Internal_Verdef *iverdefarr; |
8710 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8711 | unsigned int i; |
062e2358 | 8712 | unsigned int maxidx; |
d0fb9a8d | 8713 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8714 | |
8715 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8716 | ||
601a03ba AM |
8717 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8718 | { | |
8719 | error_return_bad_verdef: | |
4eca0228 | 8720 | _bfd_error_handler |
871b3ab2 | 8721 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8722 | bfd_set_error (bfd_error_bad_value); |
8723 | error_return_verdef: | |
8724 | elf_tdata (abfd)->verdef = NULL; | |
8725 | elf_tdata (abfd)->cverdefs = 0; | |
8726 | goto error_return; | |
8727 | } | |
8728 | ||
a50b1753 | 8729 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 8730 | if (contents == NULL) |
601a03ba | 8731 | goto error_return_verdef; |
252b5132 | 8732 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 8733 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 8734 | goto error_return_verdef; |
d0fb9a8d JJ |
8735 | |
8736 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8737 | >= sizeof (Elf_External_Verdaux)); | |
8738 | contents_end_def = contents + hdr->sh_size | |
8739 | - sizeof (Elf_External_Verdef); | |
8740 | contents_end_aux = contents + hdr->sh_size | |
8741 | - sizeof (Elf_External_Verdaux); | |
8742 | ||
f631889e UD |
8743 | /* We know the number of entries in the section but not the maximum |
8744 | index. Therefore we have to run through all entries and find | |
8745 | the maximum. */ | |
252b5132 | 8746 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8747 | maxidx = 0; |
8748 | for (i = 0; i < hdr->sh_info; ++i) | |
8749 | { | |
8750 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8751 | ||
601a03ba AM |
8752 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8753 | goto error_return_bad_verdef; | |
062e2358 AM |
8754 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8755 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8756 | |
25ff461f AM |
8757 | if (iverdefmem.vd_next == 0) |
8758 | break; | |
8759 | ||
d0fb9a8d JJ |
8760 | if (iverdefmem.vd_next |
8761 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8762 | goto error_return_bad_verdef; |
d0fb9a8d | 8763 | |
f631889e UD |
8764 | everdef = ((Elf_External_Verdef *) |
8765 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8766 | } | |
8767 | ||
fc0e6df6 PB |
8768 | if (default_imported_symver) |
8769 | { | |
8770 | if (freeidx > maxidx) | |
8771 | maxidx = ++freeidx; | |
8772 | else | |
8773 | freeidx = ++maxidx; | |
8774 | } | |
201159ec | 8775 | |
601a03ba AM |
8776 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
8777 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 8778 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8779 | goto error_return_verdef; |
f631889e UD |
8780 | |
8781 | elf_tdata (abfd)->cverdefs = maxidx; | |
8782 | ||
8783 | everdef = (Elf_External_Verdef *) contents; | |
8784 | iverdefarr = elf_tdata (abfd)->verdef; | |
8785 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8786 | { |
8787 | Elf_External_Verdaux *everdaux; | |
8788 | Elf_Internal_Verdaux *iverdaux; | |
8789 | unsigned int j; | |
8790 | ||
f631889e UD |
8791 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8792 | ||
d0fb9a8d | 8793 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8794 | goto error_return_bad_verdef; |
d0fb9a8d | 8795 | |
f631889e | 8796 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8797 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8798 | |
8799 | iverdef->vd_bfd = abfd; | |
8800 | ||
d0fb9a8d JJ |
8801 | if (iverdef->vd_cnt == 0) |
8802 | iverdef->vd_auxptr = NULL; | |
8803 | else | |
8804 | { | |
a50b1753 | 8805 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
07d6d2b8 AM |
8806 | bfd_alloc2 (abfd, iverdef->vd_cnt, |
8807 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
8808 | if (iverdef->vd_auxptr == NULL) |
8809 | goto error_return_verdef; | |
8810 | } | |
8811 | ||
8812 | if (iverdef->vd_aux | |
8813 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8814 | goto error_return_bad_verdef; |
252b5132 RH |
8815 | |
8816 | everdaux = ((Elf_External_Verdaux *) | |
8817 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8818 | iverdaux = iverdef->vd_auxptr; | |
8819 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8820 | { | |
8821 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8822 | ||
8823 | iverdaux->vda_nodename = | |
8824 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8825 | iverdaux->vda_name); | |
8826 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8827 | goto error_return_bad_verdef; |
252b5132 | 8828 | |
25ff461f AM |
8829 | iverdaux->vda_nextptr = NULL; |
8830 | if (iverdaux->vda_next == 0) | |
8831 | { | |
8832 | iverdef->vd_cnt = j + 1; | |
8833 | break; | |
8834 | } | |
252b5132 RH |
8835 | if (j + 1 < iverdef->vd_cnt) |
8836 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8837 | |
d0fb9a8d JJ |
8838 | if (iverdaux->vda_next |
8839 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8840 | goto error_return_bad_verdef; |
d0fb9a8d | 8841 | |
252b5132 RH |
8842 | everdaux = ((Elf_External_Verdaux *) |
8843 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8844 | } | |
8845 | ||
595bce75 | 8846 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8847 | if (iverdef->vd_cnt) |
8848 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8849 | |
25ff461f AM |
8850 | iverdef->vd_nextdef = NULL; |
8851 | if (iverdef->vd_next == 0) | |
8852 | break; | |
d0fb9a8d | 8853 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8854 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8855 | |
8856 | everdef = ((Elf_External_Verdef *) | |
8857 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8858 | } | |
8859 | ||
8860 | free (contents); | |
8861 | contents = NULL; | |
8862 | } | |
fc0e6df6 | 8863 | else if (default_imported_symver) |
252b5132 | 8864 | { |
fc0e6df6 PB |
8865 | if (freeidx < 3) |
8866 | freeidx = 3; | |
8867 | else | |
8868 | freeidx++; | |
252b5132 | 8869 | |
a50b1753 | 8870 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
07d6d2b8 | 8871 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); |
fc0e6df6 | 8872 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8873 | goto error_return; |
8874 | ||
fc0e6df6 PB |
8875 | elf_tdata (abfd)->cverdefs = freeidx; |
8876 | } | |
252b5132 | 8877 | |
fc0e6df6 PB |
8878 | /* Create a default version based on the soname. */ |
8879 | if (default_imported_symver) | |
8880 | { | |
8881 | Elf_Internal_Verdef *iverdef; | |
8882 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8883 | |
5bb3703f | 8884 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8885 | |
fc0e6df6 PB |
8886 | iverdef->vd_version = VER_DEF_CURRENT; |
8887 | iverdef->vd_flags = 0; | |
8888 | iverdef->vd_ndx = freeidx; | |
8889 | iverdef->vd_cnt = 1; | |
252b5132 | 8890 | |
fc0e6df6 | 8891 | iverdef->vd_bfd = abfd; |
252b5132 | 8892 | |
fc0e6df6 PB |
8893 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8894 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8895 | goto error_return_verdef; |
fc0e6df6 | 8896 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8897 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8898 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8899 | if (iverdef->vd_auxptr == NULL) |
8900 | goto error_return_verdef; | |
252b5132 | 8901 | |
fc0e6df6 PB |
8902 | iverdaux = iverdef->vd_auxptr; |
8903 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8904 | } |
8905 | ||
b34976b6 | 8906 | return TRUE; |
252b5132 RH |
8907 | |
8908 | error_return: | |
5ed6aba4 | 8909 | if (contents != NULL) |
252b5132 | 8910 | free (contents); |
b34976b6 | 8911 | return FALSE; |
252b5132 RH |
8912 | } |
8913 | \f | |
8914 | asymbol * | |
217aa764 | 8915 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8916 | { |
8917 | elf_symbol_type *newsym; | |
8918 | ||
7a6e0d89 | 8919 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
8920 | if (!newsym) |
8921 | return NULL; | |
201159ec NC |
8922 | newsym->symbol.the_bfd = abfd; |
8923 | return &newsym->symbol; | |
252b5132 RH |
8924 | } |
8925 | ||
8926 | void | |
217aa764 AM |
8927 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8928 | asymbol *symbol, | |
8929 | symbol_info *ret) | |
252b5132 RH |
8930 | { |
8931 | bfd_symbol_info (symbol, ret); | |
8932 | } | |
8933 | ||
8934 | /* Return whether a symbol name implies a local symbol. Most targets | |
8935 | use this function for the is_local_label_name entry point, but some | |
8936 | override it. */ | |
8937 | ||
b34976b6 | 8938 | bfd_boolean |
217aa764 AM |
8939 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8940 | const char *name) | |
252b5132 RH |
8941 | { |
8942 | /* Normal local symbols start with ``.L''. */ | |
8943 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8944 | return TRUE; |
252b5132 RH |
8945 | |
8946 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8947 | DWARF debugging symbols starting with ``..''. */ | |
8948 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8949 | return TRUE; |
252b5132 RH |
8950 | |
8951 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8952 | emitting DWARF debugging output. I suspect this is actually a | |
8953 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8954 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8955 | underscore to be emitted on some ELF targets). For ease of use, | |
8956 | we treat such symbols as local. */ | |
8957 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8958 | return TRUE; |
252b5132 | 8959 | |
b1fa9dd6 NC |
8960 | /* Treat assembler generated fake symbols, dollar local labels and |
8961 | forward-backward labels (aka local labels) as locals. | |
8962 | These labels have the form: | |
8963 | ||
07d6d2b8 | 8964 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8965 | |
8966 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8967 | ||
8968 | Versions which start with .L will have already been matched above, | |
8969 | so we only need to match the rest. */ | |
8970 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8971 | { | |
8972 | bfd_boolean ret = FALSE; | |
8973 | const char * p; | |
8974 | char c; | |
8975 | ||
8976 | for (p = name + 2; (c = *p); p++) | |
8977 | { | |
8978 | if (c == 1 || c == 2) | |
8979 | { | |
8980 | if (c == 1 && p == name + 2) | |
8981 | /* A fake symbol. */ | |
8982 | return TRUE; | |
8983 | ||
8984 | /* FIXME: We are being paranoid here and treating symbols like | |
8985 | L0^Bfoo as if there were non-local, on the grounds that the | |
8986 | assembler will never generate them. But can any symbol | |
8987 | containing an ASCII value in the range 1-31 ever be anything | |
8988 | other than some kind of local ? */ | |
8989 | ret = TRUE; | |
8990 | } | |
8991 | ||
8992 | if (! ISDIGIT (c)) | |
8993 | { | |
8994 | ret = FALSE; | |
8995 | break; | |
8996 | } | |
8997 | } | |
8998 | return ret; | |
8999 | } | |
ffa54770 | 9000 | |
b34976b6 | 9001 | return FALSE; |
252b5132 RH |
9002 | } |
9003 | ||
9004 | alent * | |
217aa764 AM |
9005 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
9006 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
9007 | { |
9008 | abort (); | |
9009 | return NULL; | |
9010 | } | |
9011 | ||
b34976b6 | 9012 | bfd_boolean |
217aa764 AM |
9013 | _bfd_elf_set_arch_mach (bfd *abfd, |
9014 | enum bfd_architecture arch, | |
9015 | unsigned long machine) | |
252b5132 RH |
9016 | { |
9017 | /* If this isn't the right architecture for this backend, and this | |
9018 | isn't the generic backend, fail. */ | |
9019 | if (arch != get_elf_backend_data (abfd)->arch | |
9020 | && arch != bfd_arch_unknown | |
9021 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 9022 | return FALSE; |
252b5132 RH |
9023 | |
9024 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
9025 | } | |
9026 | ||
d1fad7c6 NC |
9027 | /* Find the nearest line to a particular section and offset, |
9028 | for error reporting. */ | |
9029 | ||
b34976b6 | 9030 | bfd_boolean |
217aa764 | 9031 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 9032 | asymbol **symbols, |
fb167eb2 | 9033 | asection *section, |
217aa764 AM |
9034 | bfd_vma offset, |
9035 | const char **filename_ptr, | |
9036 | const char **functionname_ptr, | |
fb167eb2 AM |
9037 | unsigned int *line_ptr, |
9038 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 9039 | { |
b34976b6 | 9040 | bfd_boolean found; |
d1fad7c6 | 9041 | |
fb167eb2 | 9042 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 9043 | filename_ptr, functionname_ptr, |
fb167eb2 | 9044 | line_ptr, discriminator_ptr, |
9defd221 | 9045 | dwarf_debug_sections, |
e00e8198 AM |
9046 | &elf_tdata (abfd)->dwarf2_find_line_info) |
9047 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
9048 | filename_ptr, functionname_ptr, | |
9049 | line_ptr)) | |
d1fad7c6 NC |
9050 | { |
9051 | if (!*functionname_ptr) | |
e00e8198 AM |
9052 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9053 | *filename_ptr ? NULL : filename_ptr, | |
9054 | functionname_ptr); | |
b34976b6 | 9055 | return TRUE; |
d1fad7c6 NC |
9056 | } |
9057 | ||
9058 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9059 | &found, filename_ptr, |
9060 | functionname_ptr, line_ptr, | |
9061 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 9062 | return FALSE; |
dc43ada5 | 9063 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 9064 | return TRUE; |
d1fad7c6 NC |
9065 | |
9066 | if (symbols == NULL) | |
b34976b6 | 9067 | return FALSE; |
d1fad7c6 | 9068 | |
e00e8198 AM |
9069 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9070 | filename_ptr, functionname_ptr)) | |
b34976b6 | 9071 | return FALSE; |
d1fad7c6 | 9072 | |
252b5132 | 9073 | *line_ptr = 0; |
b34976b6 | 9074 | return TRUE; |
252b5132 RH |
9075 | } |
9076 | ||
5420f73d L |
9077 | /* Find the line for a symbol. */ |
9078 | ||
9079 | bfd_boolean | |
9080 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
9081 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9082 | { |
fb167eb2 AM |
9083 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9084 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9085 | dwarf_debug_sections, |
fb167eb2 | 9086 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9087 | } |
9088 | ||
4ab527b0 FF |
9089 | /* After a call to bfd_find_nearest_line, successive calls to |
9090 | bfd_find_inliner_info can be used to get source information about | |
9091 | each level of function inlining that terminated at the address | |
9092 | passed to bfd_find_nearest_line. Currently this is only supported | |
9093 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9094 | ||
9095 | bfd_boolean | |
9096 | _bfd_elf_find_inliner_info (bfd *abfd, | |
9097 | const char **filename_ptr, | |
9098 | const char **functionname_ptr, | |
9099 | unsigned int *line_ptr) | |
9100 | { | |
9101 | bfd_boolean found; | |
9102 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9103 | functionname_ptr, line_ptr, | |
9104 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9105 | return found; | |
9106 | } | |
9107 | ||
252b5132 | 9108 | int |
a6b96beb | 9109 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9110 | { |
8ded5a0f AM |
9111 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9112 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9113 | |
0e1862bb | 9114 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9115 | { |
12bd6957 | 9116 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9117 | |
62d7a5f6 AM |
9118 | if (phdr_size == (bfd_size_type) -1) |
9119 | { | |
9120 | struct elf_segment_map *m; | |
9121 | ||
9122 | phdr_size = 0; | |
12bd6957 | 9123 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9124 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9125 | |
62d7a5f6 AM |
9126 | if (phdr_size == 0) |
9127 | phdr_size = get_program_header_size (abfd, info); | |
9128 | } | |
8ded5a0f | 9129 | |
12bd6957 | 9130 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9131 | ret += phdr_size; |
9132 | } | |
9133 | ||
252b5132 RH |
9134 | return ret; |
9135 | } | |
9136 | ||
b34976b6 | 9137 | bfd_boolean |
217aa764 AM |
9138 | _bfd_elf_set_section_contents (bfd *abfd, |
9139 | sec_ptr section, | |
0f867abe | 9140 | const void *location, |
217aa764 AM |
9141 | file_ptr offset, |
9142 | bfd_size_type count) | |
252b5132 RH |
9143 | { |
9144 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9145 | file_ptr pos; |
252b5132 RH |
9146 | |
9147 | if (! abfd->output_has_begun | |
217aa764 | 9148 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 9149 | return FALSE; |
252b5132 | 9150 | |
0ce398f1 L |
9151 | if (!count) |
9152 | return TRUE; | |
9153 | ||
252b5132 | 9154 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9155 | if (hdr->sh_offset == (file_ptr) -1) |
9156 | { | |
1ff6de03 NA |
9157 | if (bfd_section_is_ctf (section)) |
9158 | /* Nothing to do with this section: the contents are generated | |
9159 | later. */ | |
9160 | return TRUE; | |
9161 | ||
0ce398f1 L |
9162 | /* We must compress this section. Write output to the buffer. */ |
9163 | unsigned char *contents = hdr->contents; | |
9164 | if ((offset + count) > hdr->sh_size | |
9165 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
9166 | || contents == NULL) | |
9167 | abort (); | |
9168 | memcpy (contents + offset, location, count); | |
9169 | return TRUE; | |
9170 | } | |
dc810e39 AM |
9171 | pos = hdr->sh_offset + offset; |
9172 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9173 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9174 | return FALSE; |
252b5132 | 9175 | |
b34976b6 | 9176 | return TRUE; |
252b5132 RH |
9177 | } |
9178 | ||
f3185997 | 9179 | bfd_boolean |
217aa764 AM |
9180 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9181 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9182 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9183 | { |
9184 | abort (); | |
f3185997 | 9185 | return FALSE; |
252b5132 RH |
9186 | } |
9187 | ||
252b5132 RH |
9188 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9189 | ||
b34976b6 | 9190 | bfd_boolean |
217aa764 | 9191 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9192 | { |
c044fabd | 9193 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9194 | |
9195 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9196 | { | |
9197 | bfd_reloc_code_real_type code; | |
9198 | reloc_howto_type *howto; | |
9199 | ||
9200 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9201 | equivalent ELF reloc. */ |
252b5132 RH |
9202 | |
9203 | if (areloc->howto->pc_relative) | |
9204 | { | |
9205 | switch (areloc->howto->bitsize) | |
9206 | { | |
9207 | case 8: | |
9208 | code = BFD_RELOC_8_PCREL; | |
9209 | break; | |
9210 | case 12: | |
9211 | code = BFD_RELOC_12_PCREL; | |
9212 | break; | |
9213 | case 16: | |
9214 | code = BFD_RELOC_16_PCREL; | |
9215 | break; | |
9216 | case 24: | |
9217 | code = BFD_RELOC_24_PCREL; | |
9218 | break; | |
9219 | case 32: | |
9220 | code = BFD_RELOC_32_PCREL; | |
9221 | break; | |
9222 | case 64: | |
9223 | code = BFD_RELOC_64_PCREL; | |
9224 | break; | |
9225 | default: | |
9226 | goto fail; | |
9227 | } | |
9228 | ||
9229 | howto = bfd_reloc_type_lookup (abfd, code); | |
9230 | ||
9231 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
9232 | { | |
9233 | if (howto->pcrel_offset) | |
9234 | areloc->addend += areloc->address; | |
9235 | else | |
9236 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9237 | } | |
9238 | } | |
9239 | else | |
9240 | { | |
9241 | switch (areloc->howto->bitsize) | |
9242 | { | |
9243 | case 8: | |
9244 | code = BFD_RELOC_8; | |
9245 | break; | |
9246 | case 14: | |
9247 | code = BFD_RELOC_14; | |
9248 | break; | |
9249 | case 16: | |
9250 | code = BFD_RELOC_16; | |
9251 | break; | |
9252 | case 26: | |
9253 | code = BFD_RELOC_26; | |
9254 | break; | |
9255 | case 32: | |
9256 | code = BFD_RELOC_32; | |
9257 | break; | |
9258 | case 64: | |
9259 | code = BFD_RELOC_64; | |
9260 | break; | |
9261 | default: | |
9262 | goto fail; | |
9263 | } | |
9264 | ||
9265 | howto = bfd_reloc_type_lookup (abfd, code); | |
9266 | } | |
9267 | ||
9268 | if (howto) | |
9269 | areloc->howto = howto; | |
9270 | else | |
9271 | goto fail; | |
9272 | } | |
9273 | ||
b34976b6 | 9274 | return TRUE; |
252b5132 RH |
9275 | |
9276 | fail: | |
0aa13fee AM |
9277 | /* xgettext:c-format */ |
9278 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9279 | abfd, areloc->howto->name); | |
252b5132 | 9280 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 9281 | return FALSE; |
252b5132 RH |
9282 | } |
9283 | ||
b34976b6 | 9284 | bfd_boolean |
217aa764 | 9285 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9286 | { |
d9071b0c TG |
9287 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9288 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9289 | { |
c0355132 | 9290 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9291 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9292 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9293 | } |
9294 | ||
9295 | return _bfd_generic_close_and_cleanup (abfd); | |
9296 | } | |
9297 | ||
9298 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9299 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9300 | range-checking to interfere. There is nothing else to do in processing | |
9301 | this reloc. */ | |
9302 | ||
9303 | bfd_reloc_status_type | |
217aa764 AM |
9304 | _bfd_elf_rel_vtable_reloc_fn |
9305 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9306 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9307 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9308 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9309 | { |
9310 | return bfd_reloc_ok; | |
9311 | } | |
252b5132 RH |
9312 | \f |
9313 | /* Elf core file support. Much of this only works on native | |
9314 | toolchains, since we rely on knowing the | |
9315 | machine-dependent procfs structure in order to pick | |
c044fabd | 9316 | out details about the corefile. */ |
252b5132 RH |
9317 | |
9318 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9319 | /* Needed for new procfs interface on sparc-solaris. */ |
9320 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9321 | # include <sys/procfs.h> |
9322 | #endif | |
9323 | ||
261b8d08 PA |
9324 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9325 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9326 | |
9327 | static int | |
217aa764 | 9328 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9329 | { |
261b8d08 PA |
9330 | int pid; |
9331 | ||
228e534f | 9332 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9333 | if (pid == 0) |
228e534f | 9334 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9335 | |
9336 | return pid; | |
252b5132 RH |
9337 | } |
9338 | ||
252b5132 RH |
9339 | /* If there isn't a section called NAME, make one, using |
9340 | data from SECT. Note, this function will generate a | |
9341 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9342 | overwrite it. */ |
252b5132 | 9343 | |
b34976b6 | 9344 | static bfd_boolean |
217aa764 | 9345 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9346 | { |
c044fabd | 9347 | asection *sect2; |
252b5132 RH |
9348 | |
9349 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9350 | return TRUE; |
252b5132 | 9351 | |
117ed4f8 | 9352 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9353 | if (sect2 == NULL) |
b34976b6 | 9354 | return FALSE; |
252b5132 | 9355 | |
eea6121a | 9356 | sect2->size = sect->size; |
252b5132 | 9357 | sect2->filepos = sect->filepos; |
252b5132 | 9358 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9359 | return TRUE; |
252b5132 RH |
9360 | } |
9361 | ||
bb0082d6 AM |
9362 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9363 | actually creates up to two pseudosections: | |
9364 | - For the single-threaded case, a section named NAME, unless | |
9365 | such a section already exists. | |
9366 | - For the multi-threaded case, a section named "NAME/PID", where | |
9367 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9368 | Both pseudosections have identical contents. */ |
b34976b6 | 9369 | bfd_boolean |
217aa764 AM |
9370 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9371 | char *name, | |
9372 | size_t size, | |
9373 | ufile_ptr filepos) | |
bb0082d6 AM |
9374 | { |
9375 | char buf[100]; | |
9376 | char *threaded_name; | |
d4c88bbb | 9377 | size_t len; |
bb0082d6 AM |
9378 | asection *sect; |
9379 | ||
9380 | /* Build the section name. */ | |
9381 | ||
9382 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9383 | len = strlen (buf) + 1; |
a50b1753 | 9384 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9385 | if (threaded_name == NULL) |
b34976b6 | 9386 | return FALSE; |
d4c88bbb | 9387 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9388 | |
117ed4f8 AM |
9389 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9390 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9391 | if (sect == NULL) |
b34976b6 | 9392 | return FALSE; |
eea6121a | 9393 | sect->size = size; |
bb0082d6 | 9394 | sect->filepos = filepos; |
bb0082d6 AM |
9395 | sect->alignment_power = 2; |
9396 | ||
936e320b | 9397 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9398 | } |
9399 | ||
58e07198 CZ |
9400 | static bfd_boolean |
9401 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9402 | size_t offs) | |
9403 | { | |
9404 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9405 | SEC_HAS_CONTENTS); | |
9406 | ||
9407 | if (sect == NULL) | |
9408 | return FALSE; | |
9409 | ||
9410 | sect->size = note->descsz - offs; | |
9411 | sect->filepos = note->descpos + offs; | |
9412 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9413 | ||
9414 | return TRUE; | |
9415 | } | |
9416 | ||
252b5132 | 9417 | /* prstatus_t exists on: |
4a938328 | 9418 | solaris 2.5+ |
252b5132 RH |
9419 | linux 2.[01] + glibc |
9420 | unixware 4.2 | |
9421 | */ | |
9422 | ||
9423 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9424 | |
b34976b6 | 9425 | static bfd_boolean |
217aa764 | 9426 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9427 | { |
eea6121a | 9428 | size_t size; |
7ee38065 | 9429 | int offset; |
252b5132 | 9430 | |
4a938328 MS |
9431 | if (note->descsz == sizeof (prstatus_t)) |
9432 | { | |
9433 | prstatus_t prstat; | |
252b5132 | 9434 | |
eea6121a | 9435 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9436 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9437 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9438 | |
fa49d224 NC |
9439 | /* Do not overwrite the core signal if it |
9440 | has already been set by another thread. */ | |
228e534f AM |
9441 | if (elf_tdata (abfd)->core->signal == 0) |
9442 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9443 | if (elf_tdata (abfd)->core->pid == 0) | |
9444 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9445 | |
4a938328 MS |
9446 | /* pr_who exists on: |
9447 | solaris 2.5+ | |
9448 | unixware 4.2 | |
9449 | pr_who doesn't exist on: | |
9450 | linux 2.[01] | |
9451 | */ | |
252b5132 | 9452 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9453 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9454 | #else |
228e534f | 9455 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9456 | #endif |
4a938328 | 9457 | } |
7ee38065 | 9458 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9459 | else if (note->descsz == sizeof (prstatus32_t)) |
9460 | { | |
9461 | /* 64-bit host, 32-bit corefile */ | |
9462 | prstatus32_t prstat; | |
9463 | ||
eea6121a | 9464 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9465 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9466 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9467 | ||
fa49d224 NC |
9468 | /* Do not overwrite the core signal if it |
9469 | has already been set by another thread. */ | |
228e534f AM |
9470 | if (elf_tdata (abfd)->core->signal == 0) |
9471 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9472 | if (elf_tdata (abfd)->core->pid == 0) | |
9473 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9474 | |
9475 | /* pr_who exists on: | |
9476 | solaris 2.5+ | |
9477 | unixware 4.2 | |
9478 | pr_who doesn't exist on: | |
9479 | linux 2.[01] | |
9480 | */ | |
7ee38065 | 9481 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9482 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9483 | #else |
228e534f | 9484 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9485 | #endif |
9486 | } | |
7ee38065 | 9487 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9488 | else |
9489 | { | |
9490 | /* Fail - we don't know how to handle any other | |
9491 | note size (ie. data object type). */ | |
b34976b6 | 9492 | return TRUE; |
4a938328 | 9493 | } |
252b5132 | 9494 | |
bb0082d6 | 9495 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9496 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9497 | size, note->descpos + offset); |
252b5132 RH |
9498 | } |
9499 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9500 | ||
bb0082d6 | 9501 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9502 | static bfd_boolean |
217aa764 AM |
9503 | elfcore_make_note_pseudosection (bfd *abfd, |
9504 | char *name, | |
9505 | Elf_Internal_Note *note) | |
252b5132 | 9506 | { |
936e320b AM |
9507 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9508 | note->descsz, note->descpos); | |
252b5132 RH |
9509 | } |
9510 | ||
ff08c6bb JB |
9511 | /* There isn't a consistent prfpregset_t across platforms, |
9512 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9513 | data structure apart. */ |
9514 | ||
b34976b6 | 9515 | static bfd_boolean |
217aa764 | 9516 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9517 | { |
9518 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9519 | } | |
9520 | ||
ff08c6bb | 9521 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9522 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9523 | literally. */ |
c044fabd | 9524 | |
b34976b6 | 9525 | static bfd_boolean |
217aa764 | 9526 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9527 | { |
9528 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9529 | } | |
9530 | ||
4339cae0 L |
9531 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9532 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9533 | contents literally. */ | |
9534 | ||
9535 | static bfd_boolean | |
9536 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9537 | { | |
9538 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9539 | } | |
9540 | ||
97753bd5 AM |
9541 | static bfd_boolean |
9542 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9543 | { | |
9544 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9545 | } | |
9546 | ||
89eeb0bc LM |
9547 | static bfd_boolean |
9548 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9549 | { | |
9550 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9551 | } | |
97753bd5 | 9552 | |
cb2366c1 EBM |
9553 | static bfd_boolean |
9554 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9555 | { | |
9556 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9557 | } | |
9558 | ||
9559 | static bfd_boolean | |
9560 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9561 | { | |
9562 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9563 | } | |
9564 | ||
9565 | static bfd_boolean | |
9566 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9567 | { | |
9568 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9569 | } | |
9570 | ||
9571 | static bfd_boolean | |
9572 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9573 | { | |
9574 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9575 | } | |
9576 | ||
9577 | static bfd_boolean | |
9578 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9579 | { | |
9580 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9581 | } | |
9582 | ||
9583 | static bfd_boolean | |
9584 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9585 | { | |
9586 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9587 | } | |
9588 | ||
9589 | static bfd_boolean | |
9590 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9591 | { | |
9592 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9593 | } | |
9594 | ||
9595 | static bfd_boolean | |
9596 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9597 | { | |
9598 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9599 | } | |
9600 | ||
9601 | static bfd_boolean | |
9602 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9603 | { | |
9604 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9605 | } | |
9606 | ||
9607 | static bfd_boolean | |
9608 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9609 | { | |
9610 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9611 | } | |
9612 | ||
9613 | static bfd_boolean | |
9614 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9615 | { | |
9616 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9617 | } | |
9618 | ||
9619 | static bfd_boolean | |
9620 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9621 | { | |
9622 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9623 | } | |
9624 | ||
9625 | static bfd_boolean | |
9626 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9627 | { | |
9628 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9629 | } | |
9630 | ||
0675e188 UW |
9631 | static bfd_boolean |
9632 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9633 | { | |
9634 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9635 | } | |
9636 | ||
d7eeb400 MS |
9637 | static bfd_boolean |
9638 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9639 | { | |
9640 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9641 | } | |
9642 | ||
9643 | static bfd_boolean | |
9644 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9645 | { | |
9646 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9647 | } | |
9648 | ||
9649 | static bfd_boolean | |
9650 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9651 | { | |
9652 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9653 | } | |
9654 | ||
9655 | static bfd_boolean | |
9656 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9657 | { | |
9658 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9659 | } | |
9660 | ||
9661 | static bfd_boolean | |
9662 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9663 | { | |
9664 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9665 | } | |
9666 | ||
355b81d9 UW |
9667 | static bfd_boolean |
9668 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9669 | { | |
9670 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9671 | } | |
9672 | ||
9673 | static bfd_boolean | |
9674 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9675 | { | |
9676 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9677 | } | |
9678 | ||
abb3f6cc NC |
9679 | static bfd_boolean |
9680 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9681 | { | |
9682 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9683 | } | |
9684 | ||
4ef9f41a AA |
9685 | static bfd_boolean |
9686 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9687 | { | |
9688 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9689 | } | |
9690 | ||
9691 | static bfd_boolean | |
9692 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9693 | { | |
9694 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9695 | } | |
9696 | ||
88ab90e8 AA |
9697 | static bfd_boolean |
9698 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9699 | { | |
9700 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9701 | } | |
9702 | ||
9703 | static bfd_boolean | |
9704 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9705 | { | |
9706 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9707 | } | |
9708 | ||
faa9a424 UW |
9709 | static bfd_boolean |
9710 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9711 | { | |
9712 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9713 | } | |
9714 | ||
652451f8 YZ |
9715 | static bfd_boolean |
9716 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9717 | { | |
9718 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9719 | } | |
9720 | ||
9721 | static bfd_boolean | |
9722 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9723 | { | |
9724 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9725 | } | |
9726 | ||
9727 | static bfd_boolean | |
9728 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9729 | { | |
9730 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9731 | } | |
9732 | ||
ad1cc4e4 AH |
9733 | static bfd_boolean |
9734 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9735 | { | |
9736 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9737 | } | |
9738 | ||
e6c3b5bf AH |
9739 | static bfd_boolean |
9740 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9741 | { | |
9742 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9743 | } | |
9744 | ||
252b5132 | 9745 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9746 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9747 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9748 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9749 | #endif | |
252b5132 RH |
9750 | #endif |
9751 | ||
9752 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9753 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9754 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9755 | typedef psinfo32_t elfcore_psinfo32_t; |
9756 | #endif | |
252b5132 RH |
9757 | #endif |
9758 | ||
252b5132 RH |
9759 | /* return a malloc'ed copy of a string at START which is at |
9760 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9761 | the copy will always have a terminating '\0'. */ |
252b5132 | 9762 | |
936e320b | 9763 | char * |
217aa764 | 9764 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9765 | { |
dc810e39 | 9766 | char *dups; |
a50b1753 | 9767 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9768 | size_t len; |
252b5132 RH |
9769 | |
9770 | if (end == NULL) | |
9771 | len = max; | |
9772 | else | |
9773 | len = end - start; | |
9774 | ||
a50b1753 | 9775 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9776 | if (dups == NULL) |
252b5132 RH |
9777 | return NULL; |
9778 | ||
dc810e39 AM |
9779 | memcpy (dups, start, len); |
9780 | dups[len] = '\0'; | |
252b5132 | 9781 | |
dc810e39 | 9782 | return dups; |
252b5132 RH |
9783 | } |
9784 | ||
bb0082d6 | 9785 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9786 | static bfd_boolean |
217aa764 | 9787 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9788 | { |
4a938328 MS |
9789 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9790 | { | |
9791 | elfcore_psinfo_t psinfo; | |
252b5132 | 9792 | |
7ee38065 | 9793 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9794 | |
335e41d4 | 9795 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9796 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9797 | #endif |
228e534f | 9798 | elf_tdata (abfd)->core->program |
936e320b AM |
9799 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9800 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9801 | |
228e534f | 9802 | elf_tdata (abfd)->core->command |
936e320b AM |
9803 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9804 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9805 | } |
7ee38065 | 9806 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9807 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9808 | { | |
9809 | /* 64-bit host, 32-bit corefile */ | |
9810 | elfcore_psinfo32_t psinfo; | |
9811 | ||
7ee38065 | 9812 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9813 | |
335e41d4 | 9814 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9815 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9816 | #endif |
228e534f | 9817 | elf_tdata (abfd)->core->program |
936e320b AM |
9818 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9819 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9820 | |
228e534f | 9821 | elf_tdata (abfd)->core->command |
936e320b AM |
9822 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9823 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9824 | } |
9825 | #endif | |
9826 | ||
9827 | else | |
9828 | { | |
9829 | /* Fail - we don't know how to handle any other | |
9830 | note size (ie. data object type). */ | |
b34976b6 | 9831 | return TRUE; |
4a938328 | 9832 | } |
252b5132 RH |
9833 | |
9834 | /* Note that for some reason, a spurious space is tacked | |
9835 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9836 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9837 | |
9838 | { | |
228e534f | 9839 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9840 | int n = strlen (command); |
9841 | ||
9842 | if (0 < n && command[n - 1] == ' ') | |
9843 | command[n - 1] = '\0'; | |
9844 | } | |
9845 | ||
b34976b6 | 9846 | return TRUE; |
252b5132 RH |
9847 | } |
9848 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9849 | ||
252b5132 | 9850 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9851 | static bfd_boolean |
217aa764 | 9852 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9853 | { |
f572a39d AM |
9854 | if (note->descsz == sizeof (pstatus_t) |
9855 | #if defined (HAVE_PXSTATUS_T) | |
9856 | || note->descsz == sizeof (pxstatus_t) | |
9857 | #endif | |
9858 | ) | |
4a938328 MS |
9859 | { |
9860 | pstatus_t pstat; | |
252b5132 | 9861 | |
4a938328 | 9862 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9863 | |
228e534f | 9864 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9865 | } |
7ee38065 | 9866 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9867 | else if (note->descsz == sizeof (pstatus32_t)) |
9868 | { | |
9869 | /* 64-bit host, 32-bit corefile */ | |
9870 | pstatus32_t pstat; | |
252b5132 | 9871 | |
4a938328 | 9872 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9873 | |
228e534f | 9874 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9875 | } |
9876 | #endif | |
252b5132 RH |
9877 | /* Could grab some more details from the "representative" |
9878 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9879 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9880 | |
b34976b6 | 9881 | return TRUE; |
252b5132 RH |
9882 | } |
9883 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9884 | ||
252b5132 | 9885 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9886 | static bfd_boolean |
217aa764 | 9887 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9888 | { |
9889 | lwpstatus_t lwpstat; | |
9890 | char buf[100]; | |
c044fabd | 9891 | char *name; |
d4c88bbb | 9892 | size_t len; |
c044fabd | 9893 | asection *sect; |
252b5132 | 9894 | |
f572a39d AM |
9895 | if (note->descsz != sizeof (lwpstat) |
9896 | #if defined (HAVE_LWPXSTATUS_T) | |
9897 | && note->descsz != sizeof (lwpxstatus_t) | |
9898 | #endif | |
9899 | ) | |
b34976b6 | 9900 | return TRUE; |
252b5132 RH |
9901 | |
9902 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9903 | ||
228e534f | 9904 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9905 | /* Do not overwrite the core signal if it has already been set by |
9906 | another thread. */ | |
228e534f AM |
9907 | if (elf_tdata (abfd)->core->signal == 0) |
9908 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9909 | |
c044fabd | 9910 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9911 | |
9912 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9913 | len = strlen (buf) + 1; |
217aa764 | 9914 | name = bfd_alloc (abfd, len); |
252b5132 | 9915 | if (name == NULL) |
b34976b6 | 9916 | return FALSE; |
d4c88bbb | 9917 | memcpy (name, buf, len); |
252b5132 | 9918 | |
117ed4f8 | 9919 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9920 | if (sect == NULL) |
b34976b6 | 9921 | return FALSE; |
252b5132 RH |
9922 | |
9923 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9924 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9925 | sect->filepos = note->descpos |
9926 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9927 | #endif | |
9928 | ||
9929 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9930 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9931 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9932 | #endif | |
9933 | ||
252b5132 RH |
9934 | sect->alignment_power = 2; |
9935 | ||
9936 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9937 | return FALSE; |
252b5132 RH |
9938 | |
9939 | /* Make a ".reg2/999" section */ | |
9940 | ||
9941 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9942 | len = strlen (buf) + 1; |
217aa764 | 9943 | name = bfd_alloc (abfd, len); |
252b5132 | 9944 | if (name == NULL) |
b34976b6 | 9945 | return FALSE; |
d4c88bbb | 9946 | memcpy (name, buf, len); |
252b5132 | 9947 | |
117ed4f8 | 9948 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9949 | if (sect == NULL) |
b34976b6 | 9950 | return FALSE; |
252b5132 RH |
9951 | |
9952 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9953 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9954 | sect->filepos = note->descpos |
9955 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9956 | #endif | |
9957 | ||
9958 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9959 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9960 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9961 | #endif | |
9962 | ||
252b5132 RH |
9963 | sect->alignment_power = 2; |
9964 | ||
936e320b | 9965 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9966 | } |
9967 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9968 | ||
b34976b6 | 9969 | static bfd_boolean |
217aa764 | 9970 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9971 | { |
9972 | char buf[30]; | |
c044fabd | 9973 | char *name; |
d4c88bbb | 9974 | size_t len; |
c044fabd | 9975 | asection *sect; |
4a6636fb PA |
9976 | int type; |
9977 | int is_active_thread; | |
9978 | bfd_vma base_addr; | |
16e9c715 | 9979 | |
4a6636fb | 9980 | if (note->descsz < 728) |
b34976b6 | 9981 | return TRUE; |
16e9c715 | 9982 | |
4a6636fb PA |
9983 | if (! CONST_STRNEQ (note->namedata, "win32")) |
9984 | return TRUE; | |
9985 | ||
9986 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 9987 | |
4a6636fb | 9988 | switch (type) |
16e9c715 | 9989 | { |
4a6636fb | 9990 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 9991 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 9992 | /* process_info.pid */ |
228e534f | 9993 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 9994 | /* process_info.signal */ |
228e534f | 9995 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 9996 | break; |
16e9c715 | 9997 | |
4a6636fb | 9998 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 9999 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
10000 | /* thread_info.tid */ |
10001 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 10002 | |
d4c88bbb | 10003 | len = strlen (buf) + 1; |
a50b1753 | 10004 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10005 | if (name == NULL) |
b34976b6 | 10006 | return FALSE; |
c044fabd | 10007 | |
d4c88bbb | 10008 | memcpy (name, buf, len); |
16e9c715 | 10009 | |
117ed4f8 | 10010 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 10011 | if (sect == NULL) |
b34976b6 | 10012 | return FALSE; |
c044fabd | 10013 | |
4a6636fb PA |
10014 | /* sizeof (thread_info.thread_context) */ |
10015 | sect->size = 716; | |
10016 | /* offsetof (thread_info.thread_context) */ | |
10017 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
10018 | sect->alignment_power = 2; |
10019 | ||
4a6636fb PA |
10020 | /* thread_info.is_active_thread */ |
10021 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
10022 | ||
10023 | if (is_active_thread) | |
16e9c715 | 10024 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 10025 | return FALSE; |
16e9c715 NC |
10026 | break; |
10027 | ||
4a6636fb | 10028 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 10029 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
10030 | /* module_info.base_address */ |
10031 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 10032 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 10033 | |
d4c88bbb | 10034 | len = strlen (buf) + 1; |
a50b1753 | 10035 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 10036 | if (name == NULL) |
b34976b6 | 10037 | return FALSE; |
c044fabd | 10038 | |
d4c88bbb | 10039 | memcpy (name, buf, len); |
252b5132 | 10040 | |
117ed4f8 | 10041 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 10042 | |
16e9c715 | 10043 | if (sect == NULL) |
b34976b6 | 10044 | return FALSE; |
c044fabd | 10045 | |
eea6121a | 10046 | sect->size = note->descsz; |
16e9c715 | 10047 | sect->filepos = note->descpos; |
16e9c715 NC |
10048 | sect->alignment_power = 2; |
10049 | break; | |
10050 | ||
10051 | default: | |
b34976b6 | 10052 | return TRUE; |
16e9c715 NC |
10053 | } |
10054 | ||
b34976b6 | 10055 | return TRUE; |
16e9c715 | 10056 | } |
252b5132 | 10057 | |
b34976b6 | 10058 | static bfd_boolean |
217aa764 | 10059 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10060 | { |
9c5bfbb7 | 10061 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10062 | |
252b5132 RH |
10063 | switch (note->type) |
10064 | { | |
10065 | default: | |
b34976b6 | 10066 | return TRUE; |
252b5132 | 10067 | |
252b5132 | 10068 | case NT_PRSTATUS: |
bb0082d6 AM |
10069 | if (bed->elf_backend_grok_prstatus) |
10070 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 10071 | return TRUE; |
bb0082d6 | 10072 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10073 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10074 | #else |
b34976b6 | 10075 | return TRUE; |
252b5132 RH |
10076 | #endif |
10077 | ||
10078 | #if defined (HAVE_PSTATUS_T) | |
10079 | case NT_PSTATUS: | |
10080 | return elfcore_grok_pstatus (abfd, note); | |
10081 | #endif | |
10082 | ||
10083 | #if defined (HAVE_LWPSTATUS_T) | |
10084 | case NT_LWPSTATUS: | |
10085 | return elfcore_grok_lwpstatus (abfd, note); | |
10086 | #endif | |
10087 | ||
10088 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10089 | return elfcore_grok_prfpreg (abfd, note); | |
10090 | ||
c044fabd | 10091 | case NT_WIN32PSTATUS: |
16e9c715 | 10092 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10093 | |
c044fabd | 10094 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10095 | if (note->namesz == 6 |
10096 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10097 | return elfcore_grok_prxfpreg (abfd, note); |
10098 | else | |
b34976b6 | 10099 | return TRUE; |
ff08c6bb | 10100 | |
4339cae0 L |
10101 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10102 | if (note->namesz == 6 | |
10103 | && strcmp (note->namedata, "LINUX") == 0) | |
10104 | return elfcore_grok_xstatereg (abfd, note); | |
10105 | else | |
10106 | return TRUE; | |
10107 | ||
97753bd5 AM |
10108 | case NT_PPC_VMX: |
10109 | if (note->namesz == 6 | |
10110 | && strcmp (note->namedata, "LINUX") == 0) | |
10111 | return elfcore_grok_ppc_vmx (abfd, note); | |
10112 | else | |
10113 | return TRUE; | |
10114 | ||
89eeb0bc LM |
10115 | case NT_PPC_VSX: |
10116 | if (note->namesz == 6 | |
07d6d2b8 AM |
10117 | && strcmp (note->namedata, "LINUX") == 0) |
10118 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10119 | else |
07d6d2b8 | 10120 | return TRUE; |
89eeb0bc | 10121 | |
cb2366c1 EBM |
10122 | case NT_PPC_TAR: |
10123 | if (note->namesz == 6 | |
4b24dd1a AM |
10124 | && strcmp (note->namedata, "LINUX") == 0) |
10125 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10126 | else |
4b24dd1a | 10127 | return TRUE; |
cb2366c1 EBM |
10128 | |
10129 | case NT_PPC_PPR: | |
10130 | if (note->namesz == 6 | |
4b24dd1a AM |
10131 | && strcmp (note->namedata, "LINUX") == 0) |
10132 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10133 | else |
4b24dd1a | 10134 | return TRUE; |
cb2366c1 EBM |
10135 | |
10136 | case NT_PPC_DSCR: | |
10137 | if (note->namesz == 6 | |
4b24dd1a AM |
10138 | && strcmp (note->namedata, "LINUX") == 0) |
10139 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10140 | else |
4b24dd1a | 10141 | return TRUE; |
cb2366c1 EBM |
10142 | |
10143 | case NT_PPC_EBB: | |
10144 | if (note->namesz == 6 | |
4b24dd1a AM |
10145 | && strcmp (note->namedata, "LINUX") == 0) |
10146 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10147 | else |
4b24dd1a | 10148 | return TRUE; |
cb2366c1 EBM |
10149 | |
10150 | case NT_PPC_PMU: | |
10151 | if (note->namesz == 6 | |
4b24dd1a AM |
10152 | && strcmp (note->namedata, "LINUX") == 0) |
10153 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10154 | else |
4b24dd1a | 10155 | return TRUE; |
cb2366c1 EBM |
10156 | |
10157 | case NT_PPC_TM_CGPR: | |
10158 | if (note->namesz == 6 | |
4b24dd1a AM |
10159 | && strcmp (note->namedata, "LINUX") == 0) |
10160 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10161 | else |
4b24dd1a | 10162 | return TRUE; |
cb2366c1 EBM |
10163 | |
10164 | case NT_PPC_TM_CFPR: | |
10165 | if (note->namesz == 6 | |
4b24dd1a AM |
10166 | && strcmp (note->namedata, "LINUX") == 0) |
10167 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10168 | else |
4b24dd1a | 10169 | return TRUE; |
cb2366c1 EBM |
10170 | |
10171 | case NT_PPC_TM_CVMX: | |
10172 | if (note->namesz == 6 | |
4b24dd1a AM |
10173 | && strcmp (note->namedata, "LINUX") == 0) |
10174 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10175 | else |
4b24dd1a | 10176 | return TRUE; |
cb2366c1 EBM |
10177 | |
10178 | case NT_PPC_TM_CVSX: | |
10179 | if (note->namesz == 6 | |
4b24dd1a AM |
10180 | && strcmp (note->namedata, "LINUX") == 0) |
10181 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10182 | else |
4b24dd1a | 10183 | return TRUE; |
cb2366c1 EBM |
10184 | |
10185 | case NT_PPC_TM_SPR: | |
10186 | if (note->namesz == 6 | |
4b24dd1a AM |
10187 | && strcmp (note->namedata, "LINUX") == 0) |
10188 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10189 | else |
4b24dd1a | 10190 | return TRUE; |
cb2366c1 EBM |
10191 | |
10192 | case NT_PPC_TM_CTAR: | |
10193 | if (note->namesz == 6 | |
4b24dd1a AM |
10194 | && strcmp (note->namedata, "LINUX") == 0) |
10195 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10196 | else |
4b24dd1a | 10197 | return TRUE; |
cb2366c1 EBM |
10198 | |
10199 | case NT_PPC_TM_CPPR: | |
10200 | if (note->namesz == 6 | |
4b24dd1a AM |
10201 | && strcmp (note->namedata, "LINUX") == 0) |
10202 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10203 | else |
4b24dd1a | 10204 | return TRUE; |
cb2366c1 EBM |
10205 | |
10206 | case NT_PPC_TM_CDSCR: | |
10207 | if (note->namesz == 6 | |
4b24dd1a AM |
10208 | && strcmp (note->namedata, "LINUX") == 0) |
10209 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10210 | else |
4b24dd1a | 10211 | return TRUE; |
cb2366c1 | 10212 | |
0675e188 UW |
10213 | case NT_S390_HIGH_GPRS: |
10214 | if (note->namesz == 6 | |
07d6d2b8 AM |
10215 | && strcmp (note->namedata, "LINUX") == 0) |
10216 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10217 | else |
07d6d2b8 | 10218 | return TRUE; |
0675e188 | 10219 | |
d7eeb400 MS |
10220 | case NT_S390_TIMER: |
10221 | if (note->namesz == 6 | |
07d6d2b8 AM |
10222 | && strcmp (note->namedata, "LINUX") == 0) |
10223 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10224 | else |
07d6d2b8 | 10225 | return TRUE; |
d7eeb400 MS |
10226 | |
10227 | case NT_S390_TODCMP: | |
10228 | if (note->namesz == 6 | |
07d6d2b8 AM |
10229 | && strcmp (note->namedata, "LINUX") == 0) |
10230 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10231 | else |
07d6d2b8 | 10232 | return TRUE; |
d7eeb400 MS |
10233 | |
10234 | case NT_S390_TODPREG: | |
10235 | if (note->namesz == 6 | |
07d6d2b8 AM |
10236 | && strcmp (note->namedata, "LINUX") == 0) |
10237 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10238 | else |
07d6d2b8 | 10239 | return TRUE; |
d7eeb400 MS |
10240 | |
10241 | case NT_S390_CTRS: | |
10242 | if (note->namesz == 6 | |
07d6d2b8 AM |
10243 | && strcmp (note->namedata, "LINUX") == 0) |
10244 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10245 | else |
07d6d2b8 | 10246 | return TRUE; |
d7eeb400 MS |
10247 | |
10248 | case NT_S390_PREFIX: | |
10249 | if (note->namesz == 6 | |
07d6d2b8 AM |
10250 | && strcmp (note->namedata, "LINUX") == 0) |
10251 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10252 | else |
07d6d2b8 | 10253 | return TRUE; |
d7eeb400 | 10254 | |
355b81d9 UW |
10255 | case NT_S390_LAST_BREAK: |
10256 | if (note->namesz == 6 | |
07d6d2b8 AM |
10257 | && strcmp (note->namedata, "LINUX") == 0) |
10258 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10259 | else |
07d6d2b8 | 10260 | return TRUE; |
355b81d9 UW |
10261 | |
10262 | case NT_S390_SYSTEM_CALL: | |
10263 | if (note->namesz == 6 | |
07d6d2b8 AM |
10264 | && strcmp (note->namedata, "LINUX") == 0) |
10265 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10266 | else |
07d6d2b8 | 10267 | return TRUE; |
355b81d9 | 10268 | |
abb3f6cc NC |
10269 | case NT_S390_TDB: |
10270 | if (note->namesz == 6 | |
07d6d2b8 AM |
10271 | && strcmp (note->namedata, "LINUX") == 0) |
10272 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10273 | else |
07d6d2b8 | 10274 | return TRUE; |
abb3f6cc | 10275 | |
4ef9f41a AA |
10276 | case NT_S390_VXRS_LOW: |
10277 | if (note->namesz == 6 | |
10278 | && strcmp (note->namedata, "LINUX") == 0) | |
10279 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10280 | else | |
10281 | return TRUE; | |
10282 | ||
10283 | case NT_S390_VXRS_HIGH: | |
10284 | if (note->namesz == 6 | |
10285 | && strcmp (note->namedata, "LINUX") == 0) | |
10286 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10287 | else | |
10288 | return TRUE; | |
10289 | ||
88ab90e8 AA |
10290 | case NT_S390_GS_CB: |
10291 | if (note->namesz == 6 | |
10292 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10293 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10294 | else |
10295 | return TRUE; | |
10296 | ||
10297 | case NT_S390_GS_BC: | |
10298 | if (note->namesz == 6 | |
10299 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10300 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10301 | else |
10302 | return TRUE; | |
10303 | ||
faa9a424 UW |
10304 | case NT_ARM_VFP: |
10305 | if (note->namesz == 6 | |
10306 | && strcmp (note->namedata, "LINUX") == 0) | |
10307 | return elfcore_grok_arm_vfp (abfd, note); | |
10308 | else | |
10309 | return TRUE; | |
10310 | ||
652451f8 YZ |
10311 | case NT_ARM_TLS: |
10312 | if (note->namesz == 6 | |
10313 | && strcmp (note->namedata, "LINUX") == 0) | |
10314 | return elfcore_grok_aarch_tls (abfd, note); | |
10315 | else | |
10316 | return TRUE; | |
10317 | ||
10318 | case NT_ARM_HW_BREAK: | |
10319 | if (note->namesz == 6 | |
10320 | && strcmp (note->namedata, "LINUX") == 0) | |
10321 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10322 | else | |
10323 | return TRUE; | |
10324 | ||
10325 | case NT_ARM_HW_WATCH: | |
10326 | if (note->namesz == 6 | |
10327 | && strcmp (note->namedata, "LINUX") == 0) | |
10328 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10329 | else | |
10330 | return TRUE; | |
10331 | ||
ad1cc4e4 AH |
10332 | case NT_ARM_SVE: |
10333 | if (note->namesz == 6 | |
10334 | && strcmp (note->namedata, "LINUX") == 0) | |
10335 | return elfcore_grok_aarch_sve (abfd, note); | |
10336 | else | |
10337 | return TRUE; | |
10338 | ||
e6c3b5bf AH |
10339 | case NT_ARM_PAC_MASK: |
10340 | if (note->namesz == 6 | |
10341 | && strcmp (note->namedata, "LINUX") == 0) | |
10342 | return elfcore_grok_aarch_pauth (abfd, note); | |
10343 | else | |
10344 | return TRUE; | |
10345 | ||
252b5132 RH |
10346 | case NT_PRPSINFO: |
10347 | case NT_PSINFO: | |
bb0082d6 AM |
10348 | if (bed->elf_backend_grok_psinfo) |
10349 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10350 | return TRUE; |
bb0082d6 | 10351 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10352 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10353 | #else |
b34976b6 | 10354 | return TRUE; |
252b5132 | 10355 | #endif |
3333a7c3 RM |
10356 | |
10357 | case NT_AUXV: | |
58e07198 | 10358 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10359 | |
451b7c33 TT |
10360 | case NT_FILE: |
10361 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10362 | note); | |
10363 | ||
9015683b TT |
10364 | case NT_SIGINFO: |
10365 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10366 | note); | |
5b2c414d | 10367 | |
252b5132 RH |
10368 | } |
10369 | } | |
10370 | ||
718175fa JK |
10371 | static bfd_boolean |
10372 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10373 | { | |
c74f7d1c | 10374 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10375 | |
10376 | if (note->descsz == 0) | |
10377 | return FALSE; | |
10378 | ||
c74f7d1c JT |
10379 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10380 | if (build_id == NULL) | |
718175fa JK |
10381 | return FALSE; |
10382 | ||
c74f7d1c JT |
10383 | build_id->size = note->descsz; |
10384 | memcpy (build_id->data, note->descdata, note->descsz); | |
10385 | abfd->build_id = build_id; | |
718175fa JK |
10386 | |
10387 | return TRUE; | |
10388 | } | |
10389 | ||
10390 | static bfd_boolean | |
10391 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10392 | { | |
10393 | switch (note->type) | |
10394 | { | |
10395 | default: | |
10396 | return TRUE; | |
10397 | ||
46bed679 L |
10398 | case NT_GNU_PROPERTY_TYPE_0: |
10399 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10400 | ||
718175fa JK |
10401 | case NT_GNU_BUILD_ID: |
10402 | return elfobj_grok_gnu_build_id (abfd, note); | |
10403 | } | |
10404 | } | |
10405 | ||
e21e5835 NC |
10406 | static bfd_boolean |
10407 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10408 | { | |
10409 | struct sdt_note *cur = | |
7a6e0d89 AM |
10410 | (struct sdt_note *) bfd_alloc (abfd, |
10411 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10412 | |
10413 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10414 | cur->size = (bfd_size_type) note->descsz; | |
10415 | memcpy (cur->data, note->descdata, note->descsz); | |
10416 | ||
10417 | elf_tdata (abfd)->sdt_note_head = cur; | |
10418 | ||
10419 | return TRUE; | |
10420 | } | |
10421 | ||
10422 | static bfd_boolean | |
10423 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10424 | { | |
10425 | switch (note->type) | |
10426 | { | |
10427 | case NT_STAPSDT: | |
10428 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10429 | ||
10430 | default: | |
10431 | return TRUE; | |
10432 | } | |
10433 | } | |
10434 | ||
aa1ed4a9 JB |
10435 | static bfd_boolean |
10436 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10437 | { | |
10438 | size_t offset; | |
10439 | ||
b5430a3c | 10440 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10441 | { |
b5430a3c | 10442 | case ELFCLASS32: |
0064d223 JB |
10443 | if (note->descsz < 108) |
10444 | return FALSE; | |
aa1ed4a9 JB |
10445 | break; |
10446 | ||
b5430a3c | 10447 | case ELFCLASS64: |
0064d223 JB |
10448 | if (note->descsz < 120) |
10449 | return FALSE; | |
aa1ed4a9 JB |
10450 | break; |
10451 | ||
10452 | default: | |
10453 | return FALSE; | |
10454 | } | |
10455 | ||
0064d223 JB |
10456 | /* Check for version 1 in pr_version. */ |
10457 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10458 | return FALSE; | |
80a04378 | 10459 | |
0064d223 JB |
10460 | offset = 4; |
10461 | ||
10462 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10463 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10464 | offset += 4; |
10465 | else | |
10466 | { | |
10467 | offset += 4; /* Padding before pr_psinfosz. */ | |
10468 | offset += 8; | |
10469 | } | |
10470 | ||
aa1ed4a9 JB |
10471 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10472 | elf_tdata (abfd)->core->program | |
10473 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10474 | offset += 17; | |
10475 | ||
10476 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10477 | elf_tdata (abfd)->core->command | |
10478 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10479 | offset += 81; |
10480 | ||
10481 | /* Padding before pr_pid. */ | |
10482 | offset += 2; | |
10483 | ||
10484 | /* The pr_pid field was added in version "1a". */ | |
10485 | if (note->descsz < offset + 4) | |
10486 | return TRUE; | |
10487 | ||
10488 | elf_tdata (abfd)->core->pid | |
10489 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10490 | |
10491 | return TRUE; | |
10492 | } | |
10493 | ||
10494 | static bfd_boolean | |
10495 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10496 | { | |
10497 | size_t offset; | |
10498 | size_t size; | |
24d3e51b | 10499 | size_t min_size; |
aa1ed4a9 | 10500 | |
24d3e51b NC |
10501 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10502 | Also compute minimum size of this note. */ | |
b5430a3c | 10503 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10504 | { |
b5430a3c | 10505 | case ELFCLASS32: |
24d3e51b NC |
10506 | offset = 4 + 4; |
10507 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10508 | break; |
10509 | ||
b5430a3c | 10510 | case ELFCLASS64: |
24d3e51b NC |
10511 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10512 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10513 | break; |
10514 | ||
10515 | default: | |
10516 | return FALSE; | |
10517 | } | |
10518 | ||
24d3e51b NC |
10519 | if (note->descsz < min_size) |
10520 | return FALSE; | |
10521 | ||
10522 | /* Check for version 1 in pr_version. */ | |
10523 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10524 | return FALSE; | |
aa1ed4a9 | 10525 | |
24d3e51b NC |
10526 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10527 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10528 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10529 | { |
10530 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10531 | offset += 4 * 2; | |
10532 | } | |
b5430a3c | 10533 | else |
24d3e51b NC |
10534 | { |
10535 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10536 | offset += 8 * 2; | |
10537 | } | |
aa1ed4a9 | 10538 | |
24d3e51b | 10539 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10540 | offset += 4; |
10541 | ||
24d3e51b | 10542 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10543 | if (elf_tdata (abfd)->core->signal == 0) |
10544 | elf_tdata (abfd)->core->signal | |
10545 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10546 | offset += 4; | |
10547 | ||
24d3e51b | 10548 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10549 | elf_tdata (abfd)->core->lwpid |
10550 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10551 | offset += 4; | |
10552 | ||
24d3e51b | 10553 | /* Padding before pr_reg. */ |
b5430a3c | 10554 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10555 | offset += 4; |
10556 | ||
24d3e51b NC |
10557 | /* Make sure that there is enough data remaining in the note. */ |
10558 | if ((note->descsz - offset) < size) | |
10559 | return FALSE; | |
10560 | ||
aa1ed4a9 JB |
10561 | /* Make a ".reg/999" section and a ".reg" section. */ |
10562 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10563 | size, note->descpos + offset); | |
10564 | } | |
10565 | ||
10566 | static bfd_boolean | |
10567 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10568 | { | |
544c67cd JB |
10569 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10570 | ||
aa1ed4a9 JB |
10571 | switch (note->type) |
10572 | { | |
10573 | case NT_PRSTATUS: | |
544c67cd JB |
10574 | if (bed->elf_backend_grok_freebsd_prstatus) |
10575 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10576 | return TRUE; | |
aa1ed4a9 JB |
10577 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10578 | ||
10579 | case NT_FPREGSET: | |
10580 | return elfcore_grok_prfpreg (abfd, note); | |
10581 | ||
10582 | case NT_PRPSINFO: | |
10583 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10584 | ||
10585 | case NT_FREEBSD_THRMISC: | |
10586 | if (note->namesz == 8) | |
10587 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10588 | else | |
10589 | return TRUE; | |
10590 | ||
ddb2bbcf JB |
10591 | case NT_FREEBSD_PROCSTAT_PROC: |
10592 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10593 | note); | |
10594 | ||
10595 | case NT_FREEBSD_PROCSTAT_FILES: | |
10596 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10597 | note); | |
10598 | ||
10599 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10600 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10601 | note); | |
10602 | ||
3350c5f5 | 10603 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10604 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10605 | |
aa1ed4a9 JB |
10606 | case NT_X86_XSTATE: |
10607 | if (note->namesz == 8) | |
10608 | return elfcore_grok_xstatereg (abfd, note); | |
10609 | else | |
10610 | return TRUE; | |
10611 | ||
e6f3b9c3 JB |
10612 | case NT_FREEBSD_PTLWPINFO: |
10613 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10614 | note); | |
10615 | ||
6d5be5d6 JB |
10616 | case NT_ARM_VFP: |
10617 | return elfcore_grok_arm_vfp (abfd, note); | |
10618 | ||
aa1ed4a9 JB |
10619 | default: |
10620 | return TRUE; | |
10621 | } | |
10622 | } | |
10623 | ||
b34976b6 | 10624 | static bfd_boolean |
217aa764 | 10625 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10626 | { |
10627 | char *cp; | |
10628 | ||
10629 | cp = strchr (note->namedata, '@'); | |
10630 | if (cp != NULL) | |
10631 | { | |
d2b64500 | 10632 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10633 | return TRUE; |
50b2bdb7 | 10634 | } |
b34976b6 | 10635 | return FALSE; |
50b2bdb7 AM |
10636 | } |
10637 | ||
b34976b6 | 10638 | static bfd_boolean |
217aa764 | 10639 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10640 | { |
80a04378 NC |
10641 | if (note->descsz <= 0x7c + 31) |
10642 | return FALSE; | |
10643 | ||
50b2bdb7 | 10644 | /* Signal number at offset 0x08. */ |
228e534f | 10645 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10646 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10647 | ||
10648 | /* Process ID at offset 0x50. */ | |
228e534f | 10649 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10650 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10651 | ||
10652 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10653 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10654 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10655 | ||
7720ba9f MK |
10656 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10657 | note); | |
50b2bdb7 AM |
10658 | } |
10659 | ||
b34976b6 | 10660 | static bfd_boolean |
217aa764 | 10661 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10662 | { |
10663 | int lwp; | |
10664 | ||
10665 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10666 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10667 | |
58e07198 | 10668 | switch (note->type) |
50b2bdb7 | 10669 | { |
58e07198 | 10670 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10671 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10672 | find this note before any of the others, which is fine, |
10673 | since the kernel writes this note out first when it | |
10674 | creates a core file. */ | |
50b2bdb7 | 10675 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10676 | #ifdef NT_NETBSDCORE_AUXV |
10677 | case NT_NETBSDCORE_AUXV: | |
10678 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10679 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
10680 | #endif | |
10681 | default: | |
10682 | break; | |
50b2bdb7 AM |
10683 | } |
10684 | ||
58e07198 | 10685 | /* As of March 2017 there are no other machine-independent notes |
b4db1224 JT |
10686 | defined for NetBSD core files. If the note type is less |
10687 | than the start of the machine-dependent note types, we don't | |
10688 | understand it. */ | |
47d9a591 | 10689 | |
b4db1224 | 10690 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10691 | return TRUE; |
50b2bdb7 AM |
10692 | |
10693 | ||
10694 | switch (bfd_get_arch (abfd)) | |
10695 | { | |
08a40648 AM |
10696 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10697 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10698 | |
10699 | case bfd_arch_alpha: | |
10700 | case bfd_arch_sparc: | |
10701 | switch (note->type) | |
08a40648 AM |
10702 | { |
10703 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10704 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10705 | |
08a40648 AM |
10706 | case NT_NETBSDCORE_FIRSTMACH+2: |
10707 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10708 | |
08a40648 AM |
10709 | default: |
10710 | return TRUE; | |
10711 | } | |
50b2bdb7 | 10712 | |
58e07198 CZ |
10713 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
10714 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
10715 | structure which lacks GBR. */ | |
10716 | ||
10717 | case bfd_arch_sh: | |
10718 | switch (note->type) | |
10719 | { | |
10720 | case NT_NETBSDCORE_FIRSTMACH+3: | |
10721 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10722 | ||
10723 | case NT_NETBSDCORE_FIRSTMACH+5: | |
10724 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10725 | ||
10726 | default: | |
10727 | return TRUE; | |
10728 | } | |
10729 | ||
08a40648 AM |
10730 | /* On all other arch's, PT_GETREGS == mach+1 and |
10731 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10732 | |
10733 | default: | |
10734 | switch (note->type) | |
08a40648 AM |
10735 | { |
10736 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10737 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10738 | |
08a40648 AM |
10739 | case NT_NETBSDCORE_FIRSTMACH+3: |
10740 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10741 | |
08a40648 AM |
10742 | default: |
10743 | return TRUE; | |
10744 | } | |
50b2bdb7 AM |
10745 | } |
10746 | /* NOTREACHED */ | |
10747 | } | |
10748 | ||
67cc5033 MK |
10749 | static bfd_boolean |
10750 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10751 | { | |
80a04378 NC |
10752 | if (note->descsz <= 0x48 + 31) |
10753 | return FALSE; | |
10754 | ||
67cc5033 | 10755 | /* Signal number at offset 0x08. */ |
228e534f | 10756 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10757 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10758 | ||
10759 | /* Process ID at offset 0x20. */ | |
228e534f | 10760 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10761 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10762 | ||
10763 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10764 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10765 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10766 | ||
10767 | return TRUE; | |
10768 | } | |
10769 | ||
10770 | static bfd_boolean | |
10771 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10772 | { | |
10773 | if (note->type == NT_OPENBSD_PROCINFO) | |
10774 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10775 | ||
10776 | if (note->type == NT_OPENBSD_REGS) | |
10777 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10778 | ||
10779 | if (note->type == NT_OPENBSD_FPREGS) | |
10780 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10781 | ||
10782 | if (note->type == NT_OPENBSD_XFPREGS) | |
10783 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10784 | ||
10785 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 10786 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
10787 | |
10788 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10789 | { | |
10790 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10791 | SEC_HAS_CONTENTS); | |
10792 | ||
10793 | if (sect == NULL) | |
10794 | return FALSE; | |
10795 | sect->size = note->descsz; | |
10796 | sect->filepos = note->descpos; | |
10797 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10798 | ||
10799 | return TRUE; | |
10800 | } | |
10801 | ||
10802 | return TRUE; | |
10803 | } | |
10804 | ||
07c6e936 | 10805 | static bfd_boolean |
d3fd4074 | 10806 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10807 | { |
10808 | void *ddata = note->descdata; | |
10809 | char buf[100]; | |
10810 | char *name; | |
10811 | asection *sect; | |
f8843e87 AM |
10812 | short sig; |
10813 | unsigned flags; | |
07c6e936 | 10814 | |
80a04378 NC |
10815 | if (note->descsz < 16) |
10816 | return FALSE; | |
10817 | ||
07c6e936 | 10818 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10819 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10820 | |
f8843e87 AM |
10821 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10822 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10823 | ||
10824 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10825 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10826 | |
10827 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10828 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10829 | { | |
228e534f AM |
10830 | elf_tdata (abfd)->core->signal = sig; |
10831 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10832 | } |
07c6e936 | 10833 | |
f8843e87 AM |
10834 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10835 | do not come from signals so we make sure we set the current | |
10836 | thread just in case. */ | |
10837 | if (flags & 0x00000080) | |
228e534f | 10838 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10839 | |
10840 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10841 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10842 | |
a50b1753 | 10843 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10844 | if (name == NULL) |
10845 | return FALSE; | |
10846 | strcpy (name, buf); | |
10847 | ||
117ed4f8 | 10848 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10849 | if (sect == NULL) |
10850 | return FALSE; | |
10851 | ||
07d6d2b8 AM |
10852 | sect->size = note->descsz; |
10853 | sect->filepos = note->descpos; | |
07c6e936 NC |
10854 | sect->alignment_power = 2; |
10855 | ||
10856 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10857 | } | |
10858 | ||
10859 | static bfd_boolean | |
d69f560c KW |
10860 | elfcore_grok_nto_regs (bfd *abfd, |
10861 | Elf_Internal_Note *note, | |
d3fd4074 | 10862 | long tid, |
d69f560c | 10863 | char *base) |
07c6e936 NC |
10864 | { |
10865 | char buf[100]; | |
10866 | char *name; | |
10867 | asection *sect; | |
10868 | ||
d69f560c | 10869 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10870 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10871 | |
a50b1753 | 10872 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10873 | if (name == NULL) |
10874 | return FALSE; | |
10875 | strcpy (name, buf); | |
10876 | ||
117ed4f8 | 10877 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10878 | if (sect == NULL) |
10879 | return FALSE; | |
10880 | ||
07d6d2b8 AM |
10881 | sect->size = note->descsz; |
10882 | sect->filepos = note->descpos; | |
07c6e936 NC |
10883 | sect->alignment_power = 2; |
10884 | ||
f8843e87 | 10885 | /* This is the current thread. */ |
228e534f | 10886 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10887 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10888 | |
10889 | return TRUE; | |
07c6e936 NC |
10890 | } |
10891 | ||
10892 | #define BFD_QNT_CORE_INFO 7 | |
10893 | #define BFD_QNT_CORE_STATUS 8 | |
10894 | #define BFD_QNT_CORE_GREG 9 | |
10895 | #define BFD_QNT_CORE_FPREG 10 | |
10896 | ||
10897 | static bfd_boolean | |
217aa764 | 10898 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10899 | { |
10900 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10901 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10902 | function. */ |
d3fd4074 | 10903 | static long tid = 1; |
07c6e936 NC |
10904 | |
10905 | switch (note->type) | |
10906 | { | |
d69f560c KW |
10907 | case BFD_QNT_CORE_INFO: |
10908 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10909 | case BFD_QNT_CORE_STATUS: | |
10910 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10911 | case BFD_QNT_CORE_GREG: | |
10912 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10913 | case BFD_QNT_CORE_FPREG: | |
10914 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10915 | default: | |
10916 | return TRUE; | |
07c6e936 NC |
10917 | } |
10918 | } | |
10919 | ||
b15fa79e AM |
10920 | static bfd_boolean |
10921 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10922 | { | |
10923 | char *name; | |
10924 | asection *sect; | |
10925 | size_t len; | |
10926 | ||
10927 | /* Use note name as section name. */ | |
10928 | len = note->namesz; | |
a50b1753 | 10929 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10930 | if (name == NULL) |
10931 | return FALSE; | |
10932 | memcpy (name, note->namedata, len); | |
10933 | name[len - 1] = '\0'; | |
10934 | ||
10935 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10936 | if (sect == NULL) | |
10937 | return FALSE; | |
10938 | ||
07d6d2b8 AM |
10939 | sect->size = note->descsz; |
10940 | sect->filepos = note->descpos; | |
b15fa79e AM |
10941 | sect->alignment_power = 1; |
10942 | ||
10943 | return TRUE; | |
10944 | } | |
10945 | ||
7c76fa91 MS |
10946 | /* Function: elfcore_write_note |
10947 | ||
47d9a591 | 10948 | Inputs: |
a39f3346 | 10949 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10950 | name of note |
10951 | type of note | |
10952 | data for note | |
10953 | size of data for note | |
10954 | ||
a39f3346 AM |
10955 | Writes note to end of buffer. ELF64 notes are written exactly as |
10956 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10957 | that they ought to have 8-byte namesz and descsz field, and have | |
10958 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10959 | ||
7c76fa91 | 10960 | Return: |
a39f3346 | 10961 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10962 | |
10963 | char * | |
a39f3346 | 10964 | elfcore_write_note (bfd *abfd, |
217aa764 | 10965 | char *buf, |
a39f3346 | 10966 | int *bufsiz, |
217aa764 | 10967 | const char *name, |
a39f3346 | 10968 | int type, |
217aa764 | 10969 | const void *input, |
a39f3346 | 10970 | int size) |
7c76fa91 MS |
10971 | { |
10972 | Elf_External_Note *xnp; | |
d4c88bbb | 10973 | size_t namesz; |
d4c88bbb | 10974 | size_t newspace; |
a39f3346 | 10975 | char *dest; |
7c76fa91 | 10976 | |
d4c88bbb | 10977 | namesz = 0; |
d4c88bbb | 10978 | if (name != NULL) |
a39f3346 | 10979 | namesz = strlen (name) + 1; |
d4c88bbb | 10980 | |
a39f3346 | 10981 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 10982 | |
a50b1753 | 10983 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
10984 | if (buf == NULL) |
10985 | return buf; | |
a39f3346 | 10986 | dest = buf + *bufsiz; |
7c76fa91 MS |
10987 | *bufsiz += newspace; |
10988 | xnp = (Elf_External_Note *) dest; | |
10989 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
10990 | H_PUT_32 (abfd, size, xnp->descsz); | |
10991 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
10992 | dest = xnp->name; |
10993 | if (name != NULL) | |
10994 | { | |
10995 | memcpy (dest, name, namesz); | |
10996 | dest += namesz; | |
a39f3346 | 10997 | while (namesz & 3) |
d4c88bbb AM |
10998 | { |
10999 | *dest++ = '\0'; | |
a39f3346 | 11000 | ++namesz; |
d4c88bbb AM |
11001 | } |
11002 | } | |
11003 | memcpy (dest, input, size); | |
a39f3346 AM |
11004 | dest += size; |
11005 | while (size & 3) | |
11006 | { | |
11007 | *dest++ = '\0'; | |
11008 | ++size; | |
11009 | } | |
11010 | return buf; | |
7c76fa91 MS |
11011 | } |
11012 | ||
602f1657 AM |
11013 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
11014 | possible string truncation. The "truncation" is not a bug. We | |
11015 | have an external representation of structs with fields that are not | |
11016 | necessarily NULL terminated and corresponding internal | |
11017 | representation fields that are one larger so that they can always | |
11018 | be NULL terminated. | |
11019 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
11020 | diagnostics inside functions, giving a hard error if you try to use | |
11021 | the finer control available with later versions. | |
11022 | gcc prior to 4.2 warns about diagnostic push and pop. | |
11023 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
11024 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
11025 | (*) Depending on your system header files! */ | |
d99b4b92 | 11026 | #if GCC_VERSION >= 8000 |
602f1657 AM |
11027 | # pragma GCC diagnostic push |
11028 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 11029 | #endif |
7c76fa91 | 11030 | char * |
217aa764 AM |
11031 | elfcore_write_prpsinfo (bfd *abfd, |
11032 | char *buf, | |
11033 | int *bufsiz, | |
11034 | const char *fname, | |
11035 | const char *psargs) | |
7c76fa91 | 11036 | { |
183e98be AM |
11037 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11038 | ||
11039 | if (bed->elf_backend_write_core_note != NULL) | |
11040 | { | |
11041 | char *ret; | |
11042 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11043 | NT_PRPSINFO, fname, psargs); | |
11044 | if (ret != NULL) | |
11045 | return ret; | |
11046 | } | |
7c76fa91 | 11047 | |
1f20dca5 | 11048 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 11049 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
11050 | if (bed->s->elfclass == ELFCLASS32) |
11051 | { | |
602f1657 | 11052 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
11053 | psinfo32_t data; |
11054 | int note_type = NT_PSINFO; | |
602f1657 | 11055 | # else |
183e98be AM |
11056 | prpsinfo32_t data; |
11057 | int note_type = NT_PRPSINFO; | |
602f1657 | 11058 | # endif |
183e98be AM |
11059 | |
11060 | memset (&data, 0, sizeof (data)); | |
11061 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11062 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11063 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11064 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11065 | } |
11066 | else | |
602f1657 | 11067 | # endif |
183e98be | 11068 | { |
602f1657 | 11069 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11070 | psinfo_t data; |
11071 | int note_type = NT_PSINFO; | |
602f1657 | 11072 | # else |
183e98be AM |
11073 | prpsinfo_t data; |
11074 | int note_type = NT_PRPSINFO; | |
602f1657 | 11075 | # endif |
7c76fa91 | 11076 | |
183e98be AM |
11077 | memset (&data, 0, sizeof (data)); |
11078 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11079 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11080 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11081 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11082 | } |
7c76fa91 MS |
11083 | #endif /* PSINFO_T or PRPSINFO_T */ |
11084 | ||
1f20dca5 UW |
11085 | free (buf); |
11086 | return NULL; | |
11087 | } | |
d99b4b92 | 11088 | #if GCC_VERSION >= 8000 |
602f1657 | 11089 | # pragma GCC diagnostic pop |
d99b4b92 | 11090 | #endif |
1f20dca5 | 11091 | |
70a38d42 SDJ |
11092 | char * |
11093 | elfcore_write_linux_prpsinfo32 | |
11094 | (bfd *abfd, char *buf, int *bufsiz, | |
11095 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11096 | { | |
a2f63b2e MR |
11097 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11098 | { | |
11099 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11100 | ||
11101 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11102 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11103 | &data, sizeof (data)); | |
11104 | } | |
11105 | else | |
11106 | { | |
11107 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11108 | |
a2f63b2e MR |
11109 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11110 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11111 | &data, sizeof (data)); | |
11112 | } | |
70a38d42 SDJ |
11113 | } |
11114 | ||
11115 | char * | |
11116 | elfcore_write_linux_prpsinfo64 | |
11117 | (bfd *abfd, char *buf, int *bufsiz, | |
11118 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11119 | { | |
3c9a7b0d MR |
11120 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11121 | { | |
11122 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11123 | ||
11124 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11125 | return elfcore_write_note (abfd, buf, bufsiz, | |
11126 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11127 | } | |
11128 | else | |
11129 | { | |
11130 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11131 | |
3c9a7b0d MR |
11132 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11133 | return elfcore_write_note (abfd, buf, bufsiz, | |
11134 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11135 | } | |
70a38d42 SDJ |
11136 | } |
11137 | ||
7c76fa91 | 11138 | char * |
217aa764 AM |
11139 | elfcore_write_prstatus (bfd *abfd, |
11140 | char *buf, | |
11141 | int *bufsiz, | |
11142 | long pid, | |
11143 | int cursig, | |
11144 | const void *gregs) | |
7c76fa91 | 11145 | { |
183e98be | 11146 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11147 | |
183e98be AM |
11148 | if (bed->elf_backend_write_core_note != NULL) |
11149 | { | |
11150 | char *ret; | |
11151 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11152 | NT_PRSTATUS, | |
11153 | pid, cursig, gregs); | |
11154 | if (ret != NULL) | |
11155 | return ret; | |
11156 | } | |
11157 | ||
1f20dca5 | 11158 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11159 | #if defined (HAVE_PRSTATUS32_T) |
11160 | if (bed->s->elfclass == ELFCLASS32) | |
11161 | { | |
11162 | prstatus32_t prstat; | |
11163 | ||
11164 | memset (&prstat, 0, sizeof (prstat)); | |
11165 | prstat.pr_pid = pid; | |
11166 | prstat.pr_cursig = cursig; | |
11167 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11168 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11169 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11170 | } | |
11171 | else | |
11172 | #endif | |
11173 | { | |
11174 | prstatus_t prstat; | |
11175 | ||
11176 | memset (&prstat, 0, sizeof (prstat)); | |
11177 | prstat.pr_pid = pid; | |
11178 | prstat.pr_cursig = cursig; | |
11179 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11180 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11181 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11182 | } | |
7c76fa91 MS |
11183 | #endif /* HAVE_PRSTATUS_T */ |
11184 | ||
1f20dca5 UW |
11185 | free (buf); |
11186 | return NULL; | |
11187 | } | |
11188 | ||
51316059 MS |
11189 | #if defined (HAVE_LWPSTATUS_T) |
11190 | char * | |
217aa764 AM |
11191 | elfcore_write_lwpstatus (bfd *abfd, |
11192 | char *buf, | |
11193 | int *bufsiz, | |
11194 | long pid, | |
11195 | int cursig, | |
11196 | const void *gregs) | |
51316059 MS |
11197 | { |
11198 | lwpstatus_t lwpstat; | |
183e98be | 11199 | const char *note_name = "CORE"; |
51316059 MS |
11200 | |
11201 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11202 | lwpstat.pr_lwpid = pid >> 16; | |
11203 | lwpstat.pr_cursig = cursig; | |
11204 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11205 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11206 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11207 | #if !defined(gregs) | |
11208 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11209 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11210 | #else | |
11211 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11212 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11213 | #endif | |
11214 | #endif | |
47d9a591 | 11215 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11216 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11217 | } | |
11218 | #endif /* HAVE_LWPSTATUS_T */ | |
11219 | ||
7c76fa91 MS |
11220 | #if defined (HAVE_PSTATUS_T) |
11221 | char * | |
217aa764 AM |
11222 | elfcore_write_pstatus (bfd *abfd, |
11223 | char *buf, | |
11224 | int *bufsiz, | |
11225 | long pid, | |
6c10990d NC |
11226 | int cursig ATTRIBUTE_UNUSED, |
11227 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11228 | { |
183e98be AM |
11229 | const char *note_name = "CORE"; |
11230 | #if defined (HAVE_PSTATUS32_T) | |
11231 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11232 | |
183e98be AM |
11233 | if (bed->s->elfclass == ELFCLASS32) |
11234 | { | |
11235 | pstatus32_t pstat; | |
11236 | ||
11237 | memset (&pstat, 0, sizeof (pstat)); | |
11238 | pstat.pr_pid = pid & 0xffff; | |
11239 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11240 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11241 | return buf; | |
11242 | } | |
11243 | else | |
11244 | #endif | |
11245 | { | |
11246 | pstatus_t pstat; | |
11247 | ||
11248 | memset (&pstat, 0, sizeof (pstat)); | |
11249 | pstat.pr_pid = pid & 0xffff; | |
11250 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11251 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11252 | return buf; | |
11253 | } | |
7c76fa91 MS |
11254 | } |
11255 | #endif /* HAVE_PSTATUS_T */ | |
11256 | ||
11257 | char * | |
217aa764 AM |
11258 | elfcore_write_prfpreg (bfd *abfd, |
11259 | char *buf, | |
11260 | int *bufsiz, | |
11261 | const void *fpregs, | |
11262 | int size) | |
7c76fa91 | 11263 | { |
183e98be | 11264 | const char *note_name = "CORE"; |
47d9a591 | 11265 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11266 | note_name, NT_FPREGSET, fpregs, size); |
11267 | } | |
11268 | ||
11269 | char * | |
217aa764 AM |
11270 | elfcore_write_prxfpreg (bfd *abfd, |
11271 | char *buf, | |
11272 | int *bufsiz, | |
11273 | const void *xfpregs, | |
11274 | int size) | |
7c76fa91 MS |
11275 | { |
11276 | char *note_name = "LINUX"; | |
47d9a591 | 11277 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11278 | note_name, NT_PRXFPREG, xfpregs, size); |
11279 | } | |
11280 | ||
4339cae0 L |
11281 | char * |
11282 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11283 | const void *xfpregs, int size) | |
11284 | { | |
97de3545 JB |
11285 | char *note_name; |
11286 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11287 | note_name = "FreeBSD"; | |
11288 | else | |
11289 | note_name = "LINUX"; | |
4339cae0 L |
11290 | return elfcore_write_note (abfd, buf, bufsiz, |
11291 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11292 | } | |
11293 | ||
97753bd5 AM |
11294 | char * |
11295 | elfcore_write_ppc_vmx (bfd *abfd, | |
11296 | char *buf, | |
11297 | int *bufsiz, | |
11298 | const void *ppc_vmx, | |
11299 | int size) | |
11300 | { | |
11301 | char *note_name = "LINUX"; | |
11302 | return elfcore_write_note (abfd, buf, bufsiz, | |
11303 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11304 | } | |
11305 | ||
89eeb0bc LM |
11306 | char * |
11307 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11308 | char *buf, |
11309 | int *bufsiz, | |
11310 | const void *ppc_vsx, | |
11311 | int size) | |
89eeb0bc LM |
11312 | { |
11313 | char *note_name = "LINUX"; | |
11314 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11315 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11316 | } |
11317 | ||
cb2366c1 EBM |
11318 | char * |
11319 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11320 | char *buf, |
11321 | int *bufsiz, | |
11322 | const void *ppc_tar, | |
11323 | int size) | |
cb2366c1 EBM |
11324 | { |
11325 | char *note_name = "LINUX"; | |
11326 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11327 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11328 | } |
11329 | ||
11330 | char * | |
11331 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11332 | char *buf, |
11333 | int *bufsiz, | |
11334 | const void *ppc_ppr, | |
11335 | int size) | |
cb2366c1 EBM |
11336 | { |
11337 | char *note_name = "LINUX"; | |
11338 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11339 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11340 | } |
11341 | ||
11342 | char * | |
11343 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11344 | char *buf, |
11345 | int *bufsiz, | |
11346 | const void *ppc_dscr, | |
11347 | int size) | |
cb2366c1 EBM |
11348 | { |
11349 | char *note_name = "LINUX"; | |
11350 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11351 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11352 | } |
11353 | ||
11354 | char * | |
11355 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11356 | char *buf, |
11357 | int *bufsiz, | |
11358 | const void *ppc_ebb, | |
11359 | int size) | |
cb2366c1 EBM |
11360 | { |
11361 | char *note_name = "LINUX"; | |
11362 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11363 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11364 | } |
11365 | ||
11366 | char * | |
11367 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11368 | char *buf, |
11369 | int *bufsiz, | |
11370 | const void *ppc_pmu, | |
11371 | int size) | |
cb2366c1 EBM |
11372 | { |
11373 | char *note_name = "LINUX"; | |
11374 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11375 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11376 | } |
11377 | ||
11378 | char * | |
11379 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11380 | char *buf, |
11381 | int *bufsiz, | |
11382 | const void *ppc_tm_cgpr, | |
11383 | int size) | |
cb2366c1 EBM |
11384 | { |
11385 | char *note_name = "LINUX"; | |
11386 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11387 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11388 | } |
11389 | ||
11390 | char * | |
11391 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11392 | char *buf, |
11393 | int *bufsiz, | |
11394 | const void *ppc_tm_cfpr, | |
11395 | int size) | |
cb2366c1 EBM |
11396 | { |
11397 | char *note_name = "LINUX"; | |
11398 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11399 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11400 | } |
11401 | ||
11402 | char * | |
11403 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11404 | char *buf, |
11405 | int *bufsiz, | |
11406 | const void *ppc_tm_cvmx, | |
11407 | int size) | |
cb2366c1 EBM |
11408 | { |
11409 | char *note_name = "LINUX"; | |
11410 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11411 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11412 | } |
11413 | ||
11414 | char * | |
11415 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11416 | char *buf, |
11417 | int *bufsiz, | |
11418 | const void *ppc_tm_cvsx, | |
11419 | int size) | |
cb2366c1 EBM |
11420 | { |
11421 | char *note_name = "LINUX"; | |
11422 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11423 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11424 | } |
11425 | ||
11426 | char * | |
11427 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11428 | char *buf, |
11429 | int *bufsiz, | |
11430 | const void *ppc_tm_spr, | |
11431 | int size) | |
cb2366c1 EBM |
11432 | { |
11433 | char *note_name = "LINUX"; | |
11434 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11435 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11436 | } |
11437 | ||
11438 | char * | |
11439 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11440 | char *buf, |
11441 | int *bufsiz, | |
11442 | const void *ppc_tm_ctar, | |
11443 | int size) | |
cb2366c1 EBM |
11444 | { |
11445 | char *note_name = "LINUX"; | |
11446 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11447 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11448 | } |
11449 | ||
11450 | char * | |
11451 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11452 | char *buf, |
11453 | int *bufsiz, | |
11454 | const void *ppc_tm_cppr, | |
11455 | int size) | |
cb2366c1 EBM |
11456 | { |
11457 | char *note_name = "LINUX"; | |
11458 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11459 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11460 | } |
11461 | ||
11462 | char * | |
11463 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11464 | char *buf, |
11465 | int *bufsiz, | |
11466 | const void *ppc_tm_cdscr, | |
11467 | int size) | |
cb2366c1 EBM |
11468 | { |
11469 | char *note_name = "LINUX"; | |
11470 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11471 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11472 | } |
11473 | ||
0675e188 UW |
11474 | static char * |
11475 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11476 | char *buf, | |
11477 | int *bufsiz, | |
11478 | const void *s390_high_gprs, | |
11479 | int size) | |
11480 | { | |
11481 | char *note_name = "LINUX"; | |
11482 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11483 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11484 | s390_high_gprs, size); |
11485 | } | |
11486 | ||
d7eeb400 MS |
11487 | char * |
11488 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11489 | char *buf, |
11490 | int *bufsiz, | |
11491 | const void *s390_timer, | |
11492 | int size) | |
d7eeb400 MS |
11493 | { |
11494 | char *note_name = "LINUX"; | |
11495 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11496 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11497 | } |
11498 | ||
11499 | char * | |
11500 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11501 | char *buf, |
11502 | int *bufsiz, | |
11503 | const void *s390_todcmp, | |
11504 | int size) | |
d7eeb400 MS |
11505 | { |
11506 | char *note_name = "LINUX"; | |
11507 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11508 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11509 | } |
11510 | ||
11511 | char * | |
11512 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11513 | char *buf, |
11514 | int *bufsiz, | |
11515 | const void *s390_todpreg, | |
11516 | int size) | |
d7eeb400 MS |
11517 | { |
11518 | char *note_name = "LINUX"; | |
11519 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11520 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11521 | } |
11522 | ||
11523 | char * | |
11524 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11525 | char *buf, |
11526 | int *bufsiz, | |
11527 | const void *s390_ctrs, | |
11528 | int size) | |
d7eeb400 MS |
11529 | { |
11530 | char *note_name = "LINUX"; | |
11531 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11532 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11533 | } |
11534 | ||
11535 | char * | |
11536 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11537 | char *buf, |
11538 | int *bufsiz, | |
11539 | const void *s390_prefix, | |
11540 | int size) | |
d7eeb400 MS |
11541 | { |
11542 | char *note_name = "LINUX"; | |
11543 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11544 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11545 | } |
11546 | ||
355b81d9 UW |
11547 | char * |
11548 | elfcore_write_s390_last_break (bfd *abfd, | |
11549 | char *buf, | |
11550 | int *bufsiz, | |
11551 | const void *s390_last_break, | |
11552 | int size) | |
11553 | { | |
11554 | char *note_name = "LINUX"; | |
11555 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11556 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11557 | s390_last_break, size); |
11558 | } | |
11559 | ||
11560 | char * | |
11561 | elfcore_write_s390_system_call (bfd *abfd, | |
11562 | char *buf, | |
11563 | int *bufsiz, | |
11564 | const void *s390_system_call, | |
11565 | int size) | |
11566 | { | |
11567 | char *note_name = "LINUX"; | |
11568 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11569 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11570 | s390_system_call, size); |
11571 | } | |
11572 | ||
abb3f6cc NC |
11573 | char * |
11574 | elfcore_write_s390_tdb (bfd *abfd, | |
11575 | char *buf, | |
11576 | int *bufsiz, | |
11577 | const void *s390_tdb, | |
11578 | int size) | |
11579 | { | |
11580 | char *note_name = "LINUX"; | |
11581 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11582 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11583 | } |
11584 | ||
4ef9f41a AA |
11585 | char * |
11586 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11587 | char *buf, | |
11588 | int *bufsiz, | |
11589 | const void *s390_vxrs_low, | |
11590 | int size) | |
11591 | { | |
11592 | char *note_name = "LINUX"; | |
11593 | return elfcore_write_note (abfd, buf, bufsiz, | |
11594 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11595 | } | |
11596 | ||
11597 | char * | |
11598 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11599 | char *buf, | |
11600 | int *bufsiz, | |
11601 | const void *s390_vxrs_high, | |
11602 | int size) | |
11603 | { | |
11604 | char *note_name = "LINUX"; | |
11605 | return elfcore_write_note (abfd, buf, bufsiz, | |
11606 | note_name, NT_S390_VXRS_HIGH, | |
11607 | s390_vxrs_high, size); | |
11608 | } | |
11609 | ||
88ab90e8 AA |
11610 | char * |
11611 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11612 | char *buf, | |
11613 | int *bufsiz, | |
11614 | const void *s390_gs_cb, | |
11615 | int size) | |
11616 | { | |
11617 | char *note_name = "LINUX"; | |
11618 | return elfcore_write_note (abfd, buf, bufsiz, | |
11619 | note_name, NT_S390_GS_CB, | |
11620 | s390_gs_cb, size); | |
11621 | } | |
11622 | ||
11623 | char * | |
11624 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11625 | char *buf, | |
11626 | int *bufsiz, | |
11627 | const void *s390_gs_bc, | |
11628 | int size) | |
11629 | { | |
11630 | char *note_name = "LINUX"; | |
11631 | return elfcore_write_note (abfd, buf, bufsiz, | |
11632 | note_name, NT_S390_GS_BC, | |
11633 | s390_gs_bc, size); | |
11634 | } | |
11635 | ||
faa9a424 UW |
11636 | char * |
11637 | elfcore_write_arm_vfp (bfd *abfd, | |
11638 | char *buf, | |
11639 | int *bufsiz, | |
11640 | const void *arm_vfp, | |
11641 | int size) | |
11642 | { | |
11643 | char *note_name = "LINUX"; | |
11644 | return elfcore_write_note (abfd, buf, bufsiz, | |
11645 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11646 | } | |
11647 | ||
652451f8 YZ |
11648 | char * |
11649 | elfcore_write_aarch_tls (bfd *abfd, | |
11650 | char *buf, | |
11651 | int *bufsiz, | |
11652 | const void *aarch_tls, | |
11653 | int size) | |
11654 | { | |
11655 | char *note_name = "LINUX"; | |
11656 | return elfcore_write_note (abfd, buf, bufsiz, | |
11657 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11658 | } | |
11659 | ||
11660 | char * | |
11661 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11662 | char *buf, | |
11663 | int *bufsiz, | |
11664 | const void *aarch_hw_break, | |
11665 | int size) | |
11666 | { | |
11667 | char *note_name = "LINUX"; | |
11668 | return elfcore_write_note (abfd, buf, bufsiz, | |
11669 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11670 | } | |
11671 | ||
11672 | char * | |
11673 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11674 | char *buf, | |
11675 | int *bufsiz, | |
11676 | const void *aarch_hw_watch, | |
11677 | int size) | |
11678 | { | |
11679 | char *note_name = "LINUX"; | |
11680 | return elfcore_write_note (abfd, buf, bufsiz, | |
11681 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11682 | } | |
11683 | ||
ad1cc4e4 AH |
11684 | char * |
11685 | elfcore_write_aarch_sve (bfd *abfd, | |
11686 | char *buf, | |
11687 | int *bufsiz, | |
11688 | const void *aarch_sve, | |
11689 | int size) | |
11690 | { | |
11691 | char *note_name = "LINUX"; | |
11692 | return elfcore_write_note (abfd, buf, bufsiz, | |
11693 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11694 | } | |
11695 | ||
e6c3b5bf AH |
11696 | char * |
11697 | elfcore_write_aarch_pauth (bfd *abfd, | |
11698 | char *buf, | |
11699 | int *bufsiz, | |
11700 | const void *aarch_pauth, | |
11701 | int size) | |
11702 | { | |
11703 | char *note_name = "LINUX"; | |
11704 | return elfcore_write_note (abfd, buf, bufsiz, | |
11705 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11706 | } | |
11707 | ||
bb864ac1 CES |
11708 | char * |
11709 | elfcore_write_register_note (bfd *abfd, | |
11710 | char *buf, | |
11711 | int *bufsiz, | |
11712 | const char *section, | |
11713 | const void *data, | |
11714 | int size) | |
11715 | { | |
11716 | if (strcmp (section, ".reg2") == 0) | |
11717 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11718 | if (strcmp (section, ".reg-xfp") == 0) | |
11719 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11720 | if (strcmp (section, ".reg-xstate") == 0) |
11721 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11722 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11723 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11724 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11725 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11726 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11727 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11728 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11729 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11730 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11731 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11732 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11733 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11734 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11735 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11736 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11737 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11738 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11739 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11740 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11741 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11742 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11743 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11744 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11745 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11746 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11747 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11748 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11749 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11750 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11751 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11752 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11753 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11754 | if (strcmp (section, ".reg-s390-timer") == 0) |
11755 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11756 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11757 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11758 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11759 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11760 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11761 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11762 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11763 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11764 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11765 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11766 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11767 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11768 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11769 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11770 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11771 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11772 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11773 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11774 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11775 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11776 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11777 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11778 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11779 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11780 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11781 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11782 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11783 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11784 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11785 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11786 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11787 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
11788 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
11789 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11790 | return NULL; |
11791 | } | |
11792 | ||
b34976b6 | 11793 | static bfd_boolean |
276da9b3 L |
11794 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11795 | size_t align) | |
252b5132 | 11796 | { |
c044fabd | 11797 | char *p; |
252b5132 | 11798 | |
276da9b3 L |
11799 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11800 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11801 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11802 | align is less than 4, we use 4 byte alignment. */ | |
11803 | if (align < 4) | |
11804 | align = 4; | |
ef135d43 NC |
11805 | if (align != 4 && align != 8) |
11806 | return FALSE; | |
276da9b3 | 11807 | |
252b5132 RH |
11808 | p = buf; |
11809 | while (p < buf + size) | |
11810 | { | |
c044fabd | 11811 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11812 | Elf_Internal_Note in; |
11813 | ||
baea7ef1 AM |
11814 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11815 | return FALSE; | |
11816 | ||
dc810e39 | 11817 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11818 | |
dc810e39 | 11819 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11820 | in.namedata = xnp->name; |
baea7ef1 AM |
11821 | if (in.namesz > buf - in.namedata + size) |
11822 | return FALSE; | |
252b5132 | 11823 | |
dc810e39 | 11824 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11825 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11826 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11827 | if (in.descsz != 0 |
11828 | && (in.descdata >= buf + size | |
11829 | || in.descsz > buf - in.descdata + size)) | |
11830 | return FALSE; | |
252b5132 | 11831 | |
718175fa | 11832 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11833 | { |
718175fa JK |
11834 | default: |
11835 | return TRUE; | |
11836 | ||
11837 | case bfd_core: | |
f64e188b | 11838 | { |
8acbedd6 | 11839 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11840 | struct |
718175fa | 11841 | { |
f64e188b | 11842 | const char * string; |
8acbedd6 | 11843 | size_t len; |
f64e188b | 11844 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11845 | } |
f64e188b | 11846 | grokers[] = |
b15fa79e | 11847 | { |
8acbedd6 | 11848 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11849 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11850 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11851 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11852 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
864619bb KS |
11853 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note), |
11854 | GROKER_ELEMENT ("GNU", elfobj_grok_gnu_note) | |
f64e188b | 11855 | }; |
8acbedd6 | 11856 | #undef GROKER_ELEMENT |
f64e188b NC |
11857 | int i; |
11858 | ||
11859 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11860 | { |
11861 | if (in.namesz >= grokers[i].len | |
11862 | && strncmp (in.namedata, grokers[i].string, | |
11863 | grokers[i].len) == 0) | |
11864 | { | |
11865 | if (! grokers[i].func (abfd, & in)) | |
11866 | return FALSE; | |
11867 | break; | |
11868 | } | |
11869 | } | |
f64e188b NC |
11870 | break; |
11871 | } | |
718175fa JK |
11872 | |
11873 | case bfd_object: | |
11874 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11875 | { | |
11876 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11877 | return FALSE; | |
11878 | } | |
e21e5835 NC |
11879 | else if (in.namesz == sizeof "stapsdt" |
11880 | && strcmp (in.namedata, "stapsdt") == 0) | |
11881 | { | |
11882 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11883 | return FALSE; | |
11884 | } | |
718175fa | 11885 | break; |
08a40648 | 11886 | } |
252b5132 | 11887 | |
276da9b3 | 11888 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11889 | } |
11890 | ||
718175fa JK |
11891 | return TRUE; |
11892 | } | |
11893 | ||
864619bb | 11894 | bfd_boolean |
276da9b3 L |
11895 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11896 | size_t align) | |
718175fa JK |
11897 | { |
11898 | char *buf; | |
11899 | ||
957e1fc1 | 11900 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11901 | return TRUE; |
11902 | ||
11903 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11904 | return FALSE; | |
11905 | ||
f64e188b | 11906 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
11907 | if (buf == NULL) |
11908 | return FALSE; | |
11909 | ||
f64e188b NC |
11910 | /* PR 17512: file: ec08f814 |
11911 | 0-termintate the buffer so that string searches will not overflow. */ | |
11912 | buf[size] = 0; | |
11913 | ||
718175fa | 11914 | if (bfd_bread (buf, size, abfd) != size |
276da9b3 | 11915 | || !elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11916 | { |
11917 | free (buf); | |
11918 | return FALSE; | |
11919 | } | |
11920 | ||
252b5132 | 11921 | free (buf); |
b34976b6 | 11922 | return TRUE; |
252b5132 | 11923 | } |
98d8431c JB |
11924 | \f |
11925 | /* Providing external access to the ELF program header table. */ | |
11926 | ||
11927 | /* Return an upper bound on the number of bytes required to store a | |
11928 | copy of ABFD's program header table entries. Return -1 if an error | |
11929 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11930 | |
98d8431c | 11931 | long |
217aa764 | 11932 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11933 | { |
11934 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11935 | { | |
11936 | bfd_set_error (bfd_error_wrong_format); | |
11937 | return -1; | |
11938 | } | |
11939 | ||
936e320b | 11940 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11941 | } |
11942 | ||
98d8431c JB |
11943 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11944 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11945 | defined in include/elf/internal.h. To find out how large the | |
11946 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11947 | ||
11948 | Return the number of program header table entries read, or -1 if an | |
11949 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11950 | |
98d8431c | 11951 | int |
217aa764 | 11952 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11953 | { |
11954 | int num_phdrs; | |
11955 | ||
11956 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11957 | { | |
11958 | bfd_set_error (bfd_error_wrong_format); | |
11959 | return -1; | |
11960 | } | |
11961 | ||
11962 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
11963 | if (num_phdrs != 0) |
11964 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
11965 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
11966 | |
11967 | return num_phdrs; | |
11968 | } | |
ae4221d7 | 11969 | |
db6751f2 | 11970 | enum elf_reloc_type_class |
7e612e98 AM |
11971 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11972 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11973 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11974 | { |
11975 | return reloc_class_normal; | |
11976 | } | |
f8df10f4 | 11977 | |
47d9a591 | 11978 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11979 | relocation against a local symbol. */ |
11980 | ||
11981 | bfd_vma | |
217aa764 AM |
11982 | _bfd_elf_rela_local_sym (bfd *abfd, |
11983 | Elf_Internal_Sym *sym, | |
8517fae7 | 11984 | asection **psec, |
217aa764 | 11985 | Elf_Internal_Rela *rel) |
f8df10f4 | 11986 | { |
8517fae7 | 11987 | asection *sec = *psec; |
f8df10f4 JJ |
11988 | bfd_vma relocation; |
11989 | ||
6835821b AM |
11990 | relocation = (sec->output_section->vma |
11991 | + sec->output_offset | |
11992 | + sym->st_value); | |
f8df10f4 | 11993 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 11994 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 11995 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 11996 | { |
f8df10f4 | 11997 | rel->r_addend = |
8517fae7 | 11998 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 11999 | elf_section_data (sec)->sec_info, |
753731ee AM |
12000 | sym->st_value + rel->r_addend); |
12001 | if (sec != *psec) | |
12002 | { | |
12003 | /* If we have changed the section, and our original section is | |
12004 | marked with SEC_EXCLUDE, it means that the original | |
12005 | SEC_MERGE section has been completely subsumed in some | |
12006 | other SEC_MERGE section. In this case, we need to leave | |
12007 | some info around for --emit-relocs. */ | |
12008 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
12009 | sec->kept_section = *psec; | |
12010 | sec = *psec; | |
12011 | } | |
8517fae7 AM |
12012 | rel->r_addend -= relocation; |
12013 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
12014 | } |
12015 | return relocation; | |
12016 | } | |
c629eae0 JJ |
12017 | |
12018 | bfd_vma | |
217aa764 AM |
12019 | _bfd_elf_rel_local_sym (bfd *abfd, |
12020 | Elf_Internal_Sym *sym, | |
12021 | asection **psec, | |
12022 | bfd_vma addend) | |
47d9a591 | 12023 | { |
c629eae0 JJ |
12024 | asection *sec = *psec; |
12025 | ||
6835821b | 12026 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
12027 | return sym->st_value + addend; |
12028 | ||
12029 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 12030 | elf_section_data (sec)->sec_info, |
753731ee | 12031 | sym->st_value + addend); |
c629eae0 JJ |
12032 | } |
12033 | ||
37b01f6a DG |
12034 | /* Adjust an address within a section. Given OFFSET within SEC, return |
12035 | the new offset within the section, based upon changes made to the | |
12036 | section. Returns -1 if the offset is now invalid. | |
12037 | The offset (in abnd out) is in target sized bytes, however big a | |
12038 | byte may be. */ | |
12039 | ||
c629eae0 | 12040 | bfd_vma |
217aa764 | 12041 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 12042 | struct bfd_link_info *info, |
217aa764 AM |
12043 | asection *sec, |
12044 | bfd_vma offset) | |
c629eae0 | 12045 | { |
68bfbfcc | 12046 | switch (sec->sec_info_type) |
65765700 | 12047 | { |
dbaa2011 | 12048 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
12049 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
12050 | offset); | |
dbaa2011 | 12051 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 12052 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 12053 | |
65765700 | 12054 | default: |
310fd250 L |
12055 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
12056 | { | |
37b01f6a | 12057 | /* Reverse the offset. */ |
310fd250 L |
12058 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12059 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12060 | |
12061 | /* address_size and sec->size are in octets. Convert | |
12062 | to bytes before subtracting the original offset. */ | |
12063 | offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset; | |
310fd250 | 12064 | } |
65765700 JJ |
12065 | return offset; |
12066 | } | |
c629eae0 | 12067 | } |
3333a7c3 RM |
12068 | \f |
12069 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12070 | reconstruct an ELF file by reading the segments out of remote memory | |
12071 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12072 | points to. If not null, *LOADBASEP is filled in with the difference | |
12073 | between the VMAs from which the segments were read, and the VMAs the | |
12074 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12075 | ||
12076 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12077 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12078 | should return zero on success or an `errno' code on failure. TEMPL must | |
12079 | be a BFD for an ELF target with the word size and byte order found in | |
12080 | the remote memory. */ | |
12081 | ||
12082 | bfd * | |
217aa764 AM |
12083 | bfd_elf_bfd_from_remote_memory |
12084 | (bfd *templ, | |
12085 | bfd_vma ehdr_vma, | |
f0a5d95a | 12086 | bfd_size_type size, |
217aa764 | 12087 | bfd_vma *loadbasep, |
fe78531d | 12088 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12089 | { |
12090 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12091 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12092 | } |
4c45e5c9 JJ |
12093 | \f |
12094 | long | |
c9727e01 AM |
12095 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12096 | long symcount ATTRIBUTE_UNUSED, | |
12097 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12098 | long dynsymcount, |
c9727e01 AM |
12099 | asymbol **dynsyms, |
12100 | asymbol **ret) | |
4c45e5c9 JJ |
12101 | { |
12102 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12103 | asection *relplt; | |
12104 | asymbol *s; | |
12105 | const char *relplt_name; | |
12106 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
12107 | arelent *p; | |
12108 | long count, i, n; | |
12109 | size_t size; | |
12110 | Elf_Internal_Shdr *hdr; | |
12111 | char *names; | |
12112 | asection *plt; | |
12113 | ||
8615f3f2 AM |
12114 | *ret = NULL; |
12115 | ||
90e3cdf2 JJ |
12116 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12117 | return 0; | |
12118 | ||
8615f3f2 AM |
12119 | if (dynsymcount <= 0) |
12120 | return 0; | |
12121 | ||
4c45e5c9 JJ |
12122 | if (!bed->plt_sym_val) |
12123 | return 0; | |
12124 | ||
12125 | relplt_name = bed->relplt_name; | |
12126 | if (relplt_name == NULL) | |
d35fd659 | 12127 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12128 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12129 | if (relplt == NULL) | |
12130 | return 0; | |
12131 | ||
12132 | hdr = &elf_section_data (relplt)->this_hdr; | |
12133 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12134 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12135 | return 0; | |
12136 | ||
12137 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12138 | if (plt == NULL) | |
12139 | return 0; | |
12140 | ||
12141 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 12142 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
12143 | return -1; |
12144 | ||
eea6121a | 12145 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12146 | size = count * sizeof (asymbol); |
12147 | p = relplt->relocation; | |
cb53bf42 | 12148 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12149 | { |
12150 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12151 | if (p->addend != 0) | |
12152 | { | |
12153 | #ifdef BFD64 | |
12154 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12155 | #else | |
12156 | size += sizeof ("+0x") - 1 + 8; | |
12157 | #endif | |
12158 | } | |
12159 | } | |
4c45e5c9 | 12160 | |
a50b1753 | 12161 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12162 | if (s == NULL) |
12163 | return -1; | |
12164 | ||
12165 | names = (char *) (s + count); | |
12166 | p = relplt->relocation; | |
12167 | n = 0; | |
cb53bf42 | 12168 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12169 | { |
12170 | size_t len; | |
12171 | bfd_vma addr; | |
12172 | ||
12173 | addr = bed->plt_sym_val (i, plt, p); | |
12174 | if (addr == (bfd_vma) -1) | |
12175 | continue; | |
12176 | ||
12177 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12178 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12179 | we are defining a symbol, ensure one of them is set. */ | |
12180 | if ((s->flags & BSF_LOCAL) == 0) | |
12181 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12182 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12183 | s->section = plt; |
12184 | s->value = addr - plt->vma; | |
12185 | s->name = names; | |
8f39ba8e | 12186 | s->udata.p = NULL; |
4c45e5c9 JJ |
12187 | len = strlen ((*p->sym_ptr_ptr)->name); |
12188 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12189 | names += len; | |
041de40d AM |
12190 | if (p->addend != 0) |
12191 | { | |
1d770845 | 12192 | char buf[30], *a; |
d324f6d6 | 12193 | |
041de40d AM |
12194 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12195 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12196 | bfd_sprintf_vma (abfd, buf, p->addend); |
12197 | for (a = buf; *a == '0'; ++a) | |
12198 | ; | |
12199 | len = strlen (a); | |
12200 | memcpy (names, a, len); | |
12201 | names += len; | |
041de40d | 12202 | } |
4c45e5c9 JJ |
12203 | memcpy (names, "@plt", sizeof ("@plt")); |
12204 | names += sizeof ("@plt"); | |
8f39ba8e | 12205 | ++s, ++n; |
4c45e5c9 JJ |
12206 | } |
12207 | ||
12208 | return n; | |
12209 | } | |
3d7f7666 | 12210 | |
821e6ff6 AM |
12211 | /* It is only used by x86-64 so far. |
12212 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12213 | but current usage would allow all of _bfd_std_section to be zero. */ |
12214 | static const asymbol lcomm_sym | |
12215 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12216 | asection _bfd_elf_large_com_section |
7eacd66b | 12217 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12218 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12219 | |
d1036acb | 12220 | void |
06f44071 AM |
12221 | _bfd_elf_post_process_headers (bfd *abfd ATTRIBUTE_UNUSED, |
12222 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
d1036acb | 12223 | { |
06f44071 AM |
12224 | } |
12225 | ||
cc364be6 AM |
12226 | bfd_boolean |
12227 | _bfd_elf_final_write_processing (bfd *abfd) | |
06f44071 AM |
12228 | { |
12229 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12230 | |
12231 | i_ehdrp = elf_elfheader (abfd); | |
12232 | ||
06f44071 AM |
12233 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12234 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12235 | |
df3a023b AM |
12236 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
12237 | SHF_GNU_MBIND sections or symbols of STT_GNU_IFUNC type or | |
12238 | STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12239 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12240 | { | |
12241 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12242 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12243 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12244 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12245 | { | |
12246 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
12247 | _bfd_error_handler (_("GNU_MBIND section is unsupported")); | |
12248 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) | |
12249 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is unsupported")); | |
12250 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) | |
12251 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is unsupported")); | |
12252 | bfd_set_error (bfd_error_bad_value); | |
12253 | return FALSE; | |
12254 | } | |
12255 | } | |
12256 | return TRUE; | |
d1036acb | 12257 | } |
fcb93ecf PB |
12258 | |
12259 | ||
12260 | /* Return TRUE for ELF symbol types that represent functions. | |
12261 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12262 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12263 | |
12264 | bfd_boolean | |
12265 | _bfd_elf_is_function_type (unsigned int type) | |
12266 | { | |
d8045f23 NC |
12267 | return (type == STT_FUNC |
12268 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12269 | } |
9f296da3 | 12270 | |
aef36ac1 AM |
12271 | /* If the ELF symbol SYM might be a function in SEC, return the |
12272 | function size and set *CODE_OFF to the function's entry point, | |
12273 | otherwise return zero. */ | |
9f296da3 | 12274 | |
aef36ac1 AM |
12275 | bfd_size_type |
12276 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12277 | bfd_vma *code_off) | |
9f296da3 | 12278 | { |
aef36ac1 AM |
12279 | bfd_size_type size; |
12280 | ||
ff9e0f5b | 12281 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12282 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12283 | || sym->section != sec) | |
12284 | return 0; | |
ff9e0f5b | 12285 | |
ff9e0f5b | 12286 | *code_off = sym->value; |
aef36ac1 AM |
12287 | size = 0; |
12288 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12289 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12290 | if (size == 0) | |
12291 | size = 1; | |
12292 | return size; | |
9f296da3 | 12293 | } |