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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) ; |
276da9b3 L |
56 | static bfd_boolean elf_read_notes (bfd *, file_ptr, bfd_size_type, |
57 | size_t align) ; | |
718175fa | 58 | static bfd_boolean elf_parse_notes (bfd *abfd, char *buf, size_t size, |
276da9b3 | 59 | file_ptr offset, size_t align); |
50b2bdb7 | 60 | |
252b5132 RH |
61 | /* Swap version information in and out. The version information is |
62 | currently size independent. If that ever changes, this code will | |
63 | need to move into elfcode.h. */ | |
64 | ||
65 | /* Swap in a Verdef structure. */ | |
66 | ||
67 | void | |
217aa764 AM |
68 | _bfd_elf_swap_verdef_in (bfd *abfd, |
69 | const Elf_External_Verdef *src, | |
70 | Elf_Internal_Verdef *dst) | |
252b5132 | 71 | { |
dc810e39 AM |
72 | dst->vd_version = H_GET_16 (abfd, src->vd_version); |
73 | dst->vd_flags = H_GET_16 (abfd, src->vd_flags); | |
74 | dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx); | |
75 | dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt); | |
76 | dst->vd_hash = H_GET_32 (abfd, src->vd_hash); | |
77 | dst->vd_aux = H_GET_32 (abfd, src->vd_aux); | |
78 | dst->vd_next = H_GET_32 (abfd, src->vd_next); | |
252b5132 RH |
79 | } |
80 | ||
81 | /* Swap out a Verdef structure. */ | |
82 | ||
83 | void | |
217aa764 AM |
84 | _bfd_elf_swap_verdef_out (bfd *abfd, |
85 | const Elf_Internal_Verdef *src, | |
86 | Elf_External_Verdef *dst) | |
252b5132 | 87 | { |
dc810e39 AM |
88 | H_PUT_16 (abfd, src->vd_version, dst->vd_version); |
89 | H_PUT_16 (abfd, src->vd_flags, dst->vd_flags); | |
90 | H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx); | |
91 | H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt); | |
92 | H_PUT_32 (abfd, src->vd_hash, dst->vd_hash); | |
93 | H_PUT_32 (abfd, src->vd_aux, dst->vd_aux); | |
94 | H_PUT_32 (abfd, src->vd_next, dst->vd_next); | |
252b5132 RH |
95 | } |
96 | ||
97 | /* Swap in a Verdaux structure. */ | |
98 | ||
99 | void | |
217aa764 AM |
100 | _bfd_elf_swap_verdaux_in (bfd *abfd, |
101 | const Elf_External_Verdaux *src, | |
102 | Elf_Internal_Verdaux *dst) | |
252b5132 | 103 | { |
dc810e39 AM |
104 | dst->vda_name = H_GET_32 (abfd, src->vda_name); |
105 | dst->vda_next = H_GET_32 (abfd, src->vda_next); | |
252b5132 RH |
106 | } |
107 | ||
108 | /* Swap out a Verdaux structure. */ | |
109 | ||
110 | void | |
217aa764 AM |
111 | _bfd_elf_swap_verdaux_out (bfd *abfd, |
112 | const Elf_Internal_Verdaux *src, | |
113 | Elf_External_Verdaux *dst) | |
252b5132 | 114 | { |
dc810e39 AM |
115 | H_PUT_32 (abfd, src->vda_name, dst->vda_name); |
116 | H_PUT_32 (abfd, src->vda_next, dst->vda_next); | |
252b5132 RH |
117 | } |
118 | ||
119 | /* Swap in a Verneed structure. */ | |
120 | ||
121 | void | |
217aa764 AM |
122 | _bfd_elf_swap_verneed_in (bfd *abfd, |
123 | const Elf_External_Verneed *src, | |
124 | Elf_Internal_Verneed *dst) | |
252b5132 | 125 | { |
dc810e39 AM |
126 | dst->vn_version = H_GET_16 (abfd, src->vn_version); |
127 | dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt); | |
128 | dst->vn_file = H_GET_32 (abfd, src->vn_file); | |
129 | dst->vn_aux = H_GET_32 (abfd, src->vn_aux); | |
130 | dst->vn_next = H_GET_32 (abfd, src->vn_next); | |
252b5132 RH |
131 | } |
132 | ||
133 | /* Swap out a Verneed structure. */ | |
134 | ||
135 | void | |
217aa764 AM |
136 | _bfd_elf_swap_verneed_out (bfd *abfd, |
137 | const Elf_Internal_Verneed *src, | |
138 | Elf_External_Verneed *dst) | |
252b5132 | 139 | { |
dc810e39 AM |
140 | H_PUT_16 (abfd, src->vn_version, dst->vn_version); |
141 | H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt); | |
142 | H_PUT_32 (abfd, src->vn_file, dst->vn_file); | |
143 | H_PUT_32 (abfd, src->vn_aux, dst->vn_aux); | |
144 | H_PUT_32 (abfd, src->vn_next, dst->vn_next); | |
252b5132 RH |
145 | } |
146 | ||
147 | /* Swap in a Vernaux structure. */ | |
148 | ||
149 | void | |
217aa764 AM |
150 | _bfd_elf_swap_vernaux_in (bfd *abfd, |
151 | const Elf_External_Vernaux *src, | |
152 | Elf_Internal_Vernaux *dst) | |
252b5132 | 153 | { |
dc810e39 AM |
154 | dst->vna_hash = H_GET_32 (abfd, src->vna_hash); |
155 | dst->vna_flags = H_GET_16 (abfd, src->vna_flags); | |
156 | dst->vna_other = H_GET_16 (abfd, src->vna_other); | |
157 | dst->vna_name = H_GET_32 (abfd, src->vna_name); | |
158 | dst->vna_next = H_GET_32 (abfd, src->vna_next); | |
252b5132 RH |
159 | } |
160 | ||
161 | /* Swap out a Vernaux structure. */ | |
162 | ||
163 | void | |
217aa764 AM |
164 | _bfd_elf_swap_vernaux_out (bfd *abfd, |
165 | const Elf_Internal_Vernaux *src, | |
166 | Elf_External_Vernaux *dst) | |
252b5132 | 167 | { |
dc810e39 AM |
168 | H_PUT_32 (abfd, src->vna_hash, dst->vna_hash); |
169 | H_PUT_16 (abfd, src->vna_flags, dst->vna_flags); | |
170 | H_PUT_16 (abfd, src->vna_other, dst->vna_other); | |
171 | H_PUT_32 (abfd, src->vna_name, dst->vna_name); | |
172 | H_PUT_32 (abfd, src->vna_next, dst->vna_next); | |
252b5132 RH |
173 | } |
174 | ||
175 | /* Swap in a Versym structure. */ | |
176 | ||
177 | void | |
217aa764 AM |
178 | _bfd_elf_swap_versym_in (bfd *abfd, |
179 | const Elf_External_Versym *src, | |
180 | Elf_Internal_Versym *dst) | |
252b5132 | 181 | { |
dc810e39 | 182 | dst->vs_vers = H_GET_16 (abfd, src->vs_vers); |
252b5132 RH |
183 | } |
184 | ||
185 | /* Swap out a Versym structure. */ | |
186 | ||
187 | void | |
217aa764 AM |
188 | _bfd_elf_swap_versym_out (bfd *abfd, |
189 | const Elf_Internal_Versym *src, | |
190 | Elf_External_Versym *dst) | |
252b5132 | 191 | { |
dc810e39 | 192 | H_PUT_16 (abfd, src->vs_vers, dst->vs_vers); |
252b5132 RH |
193 | } |
194 | ||
195 | /* Standard ELF hash function. Do not change this function; you will | |
196 | cause invalid hash tables to be generated. */ | |
3a99b017 | 197 | |
252b5132 | 198 | unsigned long |
217aa764 | 199 | bfd_elf_hash (const char *namearg) |
252b5132 | 200 | { |
3a99b017 | 201 | const unsigned char *name = (const unsigned char *) namearg; |
252b5132 RH |
202 | unsigned long h = 0; |
203 | unsigned long g; | |
204 | int ch; | |
205 | ||
206 | while ((ch = *name++) != '\0') | |
207 | { | |
208 | h = (h << 4) + ch; | |
209 | if ((g = (h & 0xf0000000)) != 0) | |
210 | { | |
211 | h ^= g >> 24; | |
212 | /* The ELF ABI says `h &= ~g', but this is equivalent in | |
213 | this case and on some machines one insn instead of two. */ | |
214 | h ^= g; | |
215 | } | |
216 | } | |
32dfa85d | 217 | return h & 0xffffffff; |
252b5132 RH |
218 | } |
219 | ||
fdc90cb4 JJ |
220 | /* DT_GNU_HASH hash function. Do not change this function; you will |
221 | cause invalid hash tables to be generated. */ | |
222 | ||
223 | unsigned long | |
224 | bfd_elf_gnu_hash (const char *namearg) | |
225 | { | |
226 | const unsigned char *name = (const unsigned char *) namearg; | |
227 | unsigned long h = 5381; | |
228 | unsigned char ch; | |
229 | ||
230 | while ((ch = *name++) != '\0') | |
231 | h = (h << 5) + h + ch; | |
232 | return h & 0xffffffff; | |
233 | } | |
234 | ||
0c8d6e5c AM |
235 | /* Create a tdata field OBJECT_SIZE bytes in length, zeroed out and with |
236 | the object_id field of an elf_obj_tdata field set to OBJECT_ID. */ | |
b34976b6 | 237 | bfd_boolean |
0c8d6e5c | 238 | bfd_elf_allocate_object (bfd *abfd, |
0ffa91dd | 239 | size_t object_size, |
4dfe6ac6 | 240 | enum elf_target_id object_id) |
252b5132 | 241 | { |
0ffa91dd NC |
242 | BFD_ASSERT (object_size >= sizeof (struct elf_obj_tdata)); |
243 | abfd->tdata.any = bfd_zalloc (abfd, object_size); | |
244 | if (abfd->tdata.any == NULL) | |
245 | return FALSE; | |
252b5132 | 246 | |
0ffa91dd | 247 | elf_object_id (abfd) = object_id; |
c0355132 AM |
248 | if (abfd->direction != read_direction) |
249 | { | |
250 | struct output_elf_obj_tdata *o = bfd_zalloc (abfd, sizeof *o); | |
251 | if (o == NULL) | |
252 | return FALSE; | |
253 | elf_tdata (abfd)->o = o; | |
254 | elf_program_header_size (abfd) = (bfd_size_type) -1; | |
255 | } | |
b34976b6 | 256 | return TRUE; |
252b5132 RH |
257 | } |
258 | ||
0ffa91dd NC |
259 | |
260 | bfd_boolean | |
ae95ffa6 | 261 | bfd_elf_make_object (bfd *abfd) |
0ffa91dd | 262 | { |
ae95ffa6 | 263 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
0ffa91dd | 264 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), |
ae95ffa6 | 265 | bed->target_id); |
0ffa91dd NC |
266 | } |
267 | ||
b34976b6 | 268 | bfd_boolean |
217aa764 | 269 | bfd_elf_mkcorefile (bfd *abfd) |
252b5132 | 270 | { |
c044fabd | 271 | /* I think this can be done just like an object file. */ |
228e534f AM |
272 | if (!abfd->xvec->_bfd_set_format[(int) bfd_object] (abfd)) |
273 | return FALSE; | |
274 | elf_tdata (abfd)->core = bfd_zalloc (abfd, sizeof (*elf_tdata (abfd)->core)); | |
275 | return elf_tdata (abfd)->core != NULL; | |
252b5132 RH |
276 | } |
277 | ||
72a80a16 | 278 | static char * |
217aa764 | 279 | bfd_elf_get_str_section (bfd *abfd, unsigned int shindex) |
252b5132 RH |
280 | { |
281 | Elf_Internal_Shdr **i_shdrp; | |
f075ee0c | 282 | bfd_byte *shstrtab = NULL; |
dc810e39 AM |
283 | file_ptr offset; |
284 | bfd_size_type shstrtabsize; | |
252b5132 RH |
285 | |
286 | i_shdrp = elf_elfsections (abfd); | |
74f2e02b AM |
287 | if (i_shdrp == 0 |
288 | || shindex >= elf_numsections (abfd) | |
289 | || i_shdrp[shindex] == 0) | |
f075ee0c | 290 | return NULL; |
252b5132 | 291 | |
f075ee0c | 292 | shstrtab = i_shdrp[shindex]->contents; |
252b5132 RH |
293 | if (shstrtab == NULL) |
294 | { | |
c044fabd | 295 | /* No cached one, attempt to read, and cache what we read. */ |
252b5132 RH |
296 | offset = i_shdrp[shindex]->sh_offset; |
297 | shstrtabsize = i_shdrp[shindex]->sh_size; | |
c6c60d09 JJ |
298 | |
299 | /* Allocate and clear an extra byte at the end, to prevent crashes | |
300 | in case the string table is not terminated. */ | |
3471d59d | 301 | if (shstrtabsize + 1 <= 1 |
95a6d235 | 302 | || shstrtabsize > bfd_get_file_size (abfd) |
06614111 NC |
303 | || bfd_seek (abfd, offset, SEEK_SET) != 0 |
304 | || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL) | |
c6c60d09 JJ |
305 | shstrtab = NULL; |
306 | else if (bfd_bread (shstrtab, shstrtabsize, abfd) != shstrtabsize) | |
307 | { | |
308 | if (bfd_get_error () != bfd_error_system_call) | |
309 | bfd_set_error (bfd_error_file_truncated); | |
06614111 | 310 | bfd_release (abfd, shstrtab); |
c6c60d09 | 311 | shstrtab = NULL; |
3471d59d CC |
312 | /* Once we've failed to read it, make sure we don't keep |
313 | trying. Otherwise, we'll keep allocating space for | |
314 | the string table over and over. */ | |
315 | i_shdrp[shindex]->sh_size = 0; | |
c6c60d09 JJ |
316 | } |
317 | else | |
318 | shstrtab[shstrtabsize] = '\0'; | |
217aa764 | 319 | i_shdrp[shindex]->contents = shstrtab; |
252b5132 | 320 | } |
f075ee0c | 321 | return (char *) shstrtab; |
252b5132 RH |
322 | } |
323 | ||
324 | char * | |
217aa764 AM |
325 | bfd_elf_string_from_elf_section (bfd *abfd, |
326 | unsigned int shindex, | |
327 | unsigned int strindex) | |
252b5132 RH |
328 | { |
329 | Elf_Internal_Shdr *hdr; | |
330 | ||
331 | if (strindex == 0) | |
332 | return ""; | |
333 | ||
74f2e02b AM |
334 | if (elf_elfsections (abfd) == NULL || shindex >= elf_numsections (abfd)) |
335 | return NULL; | |
336 | ||
252b5132 RH |
337 | hdr = elf_elfsections (abfd)[shindex]; |
338 | ||
06614111 NC |
339 | if (hdr->contents == NULL) |
340 | { | |
341 | if (hdr->sh_type != SHT_STRTAB && hdr->sh_type < SHT_LOOS) | |
342 | { | |
343 | /* PR 17512: file: f057ec89. */ | |
695344c0 | 344 | /* xgettext:c-format */ |
871b3ab2 | 345 | _bfd_error_handler (_("%pB: attempt to load strings from" |
63a5468a | 346 | " a non-string section (number %d)"), |
06614111 NC |
347 | abfd, shindex); |
348 | return NULL; | |
349 | } | |
b1fa9dd6 | 350 | |
06614111 NC |
351 | if (bfd_elf_get_str_section (abfd, shindex) == NULL) |
352 | return NULL; | |
353 | } | |
eed5def8 NC |
354 | else |
355 | { | |
356 | /* PR 24273: The string section's contents may have already | |
357 | been loaded elsewhere, eg because a corrupt file has the | |
358 | string section index in the ELF header pointing at a group | |
359 | section. So be paranoid, and test that the last byte of | |
360 | the section is zero. */ | |
361 | if (hdr->sh_size == 0 || hdr->contents[hdr->sh_size - 1] != 0) | |
362 | return NULL; | |
363 | } | |
252b5132 RH |
364 | |
365 | if (strindex >= hdr->sh_size) | |
366 | { | |
1b3a8575 | 367 | unsigned int shstrndx = elf_elfheader(abfd)->e_shstrndx; |
4eca0228 | 368 | _bfd_error_handler |
695344c0 | 369 | /* xgettext:c-format */ |
2dcf00ce AM |
370 | (_("%pB: invalid string offset %u >= %" PRIu64 " for section `%s'"), |
371 | abfd, strindex, (uint64_t) hdr->sh_size, | |
1b3a8575 | 372 | (shindex == shstrndx && strindex == hdr->sh_name |
252b5132 | 373 | ? ".shstrtab" |
1b3a8575 | 374 | : bfd_elf_string_from_elf_section (abfd, shstrndx, hdr->sh_name))); |
45b222d6 | 375 | return NULL; |
252b5132 RH |
376 | } |
377 | ||
378 | return ((char *) hdr->contents) + strindex; | |
379 | } | |
380 | ||
6cdc0ccc AM |
381 | /* Read and convert symbols to internal format. |
382 | SYMCOUNT specifies the number of symbols to read, starting from | |
383 | symbol SYMOFFSET. If any of INTSYM_BUF, EXTSYM_BUF or EXTSHNDX_BUF | |
384 | are non-NULL, they are used to store the internal symbols, external | |
b7c368d0 NC |
385 | symbols, and symbol section index extensions, respectively. |
386 | Returns a pointer to the internal symbol buffer (malloced if necessary) | |
387 | or NULL if there were no symbols or some kind of problem. */ | |
6cdc0ccc AM |
388 | |
389 | Elf_Internal_Sym * | |
217aa764 AM |
390 | bfd_elf_get_elf_syms (bfd *ibfd, |
391 | Elf_Internal_Shdr *symtab_hdr, | |
392 | size_t symcount, | |
393 | size_t symoffset, | |
394 | Elf_Internal_Sym *intsym_buf, | |
395 | void *extsym_buf, | |
396 | Elf_External_Sym_Shndx *extshndx_buf) | |
6cdc0ccc AM |
397 | { |
398 | Elf_Internal_Shdr *shndx_hdr; | |
217aa764 | 399 | void *alloc_ext; |
df622259 | 400 | const bfd_byte *esym; |
6cdc0ccc AM |
401 | Elf_External_Sym_Shndx *alloc_extshndx; |
402 | Elf_External_Sym_Shndx *shndx; | |
4dd07732 | 403 | Elf_Internal_Sym *alloc_intsym; |
6cdc0ccc AM |
404 | Elf_Internal_Sym *isym; |
405 | Elf_Internal_Sym *isymend; | |
9c5bfbb7 | 406 | const struct elf_backend_data *bed; |
6cdc0ccc AM |
407 | size_t extsym_size; |
408 | bfd_size_type amt; | |
409 | file_ptr pos; | |
410 | ||
e44a2c9c AM |
411 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
412 | abort (); | |
413 | ||
6cdc0ccc AM |
414 | if (symcount == 0) |
415 | return intsym_buf; | |
416 | ||
417 | /* Normal syms might have section extension entries. */ | |
418 | shndx_hdr = NULL; | |
6a40cf0c NC |
419 | if (elf_symtab_shndx_list (ibfd) != NULL) |
420 | { | |
421 | elf_section_list * entry; | |
422 | Elf_Internal_Shdr **sections = elf_elfsections (ibfd); | |
423 | ||
424 | /* Find an index section that is linked to this symtab section. */ | |
425 | for (entry = elf_symtab_shndx_list (ibfd); entry != NULL; entry = entry->next) | |
315350be NC |
426 | { |
427 | /* PR 20063. */ | |
428 | if (entry->hdr.sh_link >= elf_numsections (ibfd)) | |
429 | continue; | |
430 | ||
431 | if (sections[entry->hdr.sh_link] == symtab_hdr) | |
432 | { | |
433 | shndx_hdr = & entry->hdr; | |
434 | break; | |
435 | }; | |
436 | } | |
6a40cf0c NC |
437 | |
438 | if (shndx_hdr == NULL) | |
439 | { | |
440 | if (symtab_hdr == & elf_symtab_hdr (ibfd)) | |
441 | /* Not really accurate, but this was how the old code used to work. */ | |
442 | shndx_hdr = & elf_symtab_shndx_list (ibfd)->hdr; | |
443 | /* Otherwise we do nothing. The assumption is that | |
444 | the index table will not be needed. */ | |
445 | } | |
446 | } | |
6cdc0ccc AM |
447 | |
448 | /* Read the symbols. */ | |
449 | alloc_ext = NULL; | |
450 | alloc_extshndx = NULL; | |
4dd07732 | 451 | alloc_intsym = NULL; |
6cdc0ccc AM |
452 | bed = get_elf_backend_data (ibfd); |
453 | extsym_size = bed->s->sizeof_sym; | |
ef53be89 | 454 | amt = (bfd_size_type) symcount * extsym_size; |
6cdc0ccc AM |
455 | pos = symtab_hdr->sh_offset + symoffset * extsym_size; |
456 | if (extsym_buf == NULL) | |
457 | { | |
d0fb9a8d | 458 | alloc_ext = bfd_malloc2 (symcount, extsym_size); |
6cdc0ccc AM |
459 | extsym_buf = alloc_ext; |
460 | } | |
461 | if (extsym_buf == NULL | |
462 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
463 | || bfd_bread (extsym_buf, amt, ibfd) != amt) | |
464 | { | |
465 | intsym_buf = NULL; | |
466 | goto out; | |
467 | } | |
468 | ||
469 | if (shndx_hdr == NULL || shndx_hdr->sh_size == 0) | |
470 | extshndx_buf = NULL; | |
471 | else | |
472 | { | |
ef53be89 | 473 | amt = (bfd_size_type) symcount * sizeof (Elf_External_Sym_Shndx); |
6cdc0ccc AM |
474 | pos = shndx_hdr->sh_offset + symoffset * sizeof (Elf_External_Sym_Shndx); |
475 | if (extshndx_buf == NULL) | |
476 | { | |
a50b1753 | 477 | alloc_extshndx = (Elf_External_Sym_Shndx *) |
07d6d2b8 | 478 | bfd_malloc2 (symcount, sizeof (Elf_External_Sym_Shndx)); |
6cdc0ccc AM |
479 | extshndx_buf = alloc_extshndx; |
480 | } | |
481 | if (extshndx_buf == NULL | |
482 | || bfd_seek (ibfd, pos, SEEK_SET) != 0 | |
483 | || bfd_bread (extshndx_buf, amt, ibfd) != amt) | |
484 | { | |
485 | intsym_buf = NULL; | |
486 | goto out; | |
487 | } | |
488 | } | |
489 | ||
490 | if (intsym_buf == NULL) | |
491 | { | |
a50b1753 | 492 | alloc_intsym = (Elf_Internal_Sym *) |
07d6d2b8 | 493 | bfd_malloc2 (symcount, sizeof (Elf_Internal_Sym)); |
4dd07732 | 494 | intsym_buf = alloc_intsym; |
6cdc0ccc AM |
495 | if (intsym_buf == NULL) |
496 | goto out; | |
497 | } | |
498 | ||
499 | /* Convert the symbols to internal form. */ | |
500 | isymend = intsym_buf + symcount; | |
a50b1753 | 501 | for (esym = (const bfd_byte *) extsym_buf, isym = intsym_buf, |
07d6d2b8 | 502 | shndx = extshndx_buf; |
6cdc0ccc AM |
503 | isym < isymend; |
504 | esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL) | |
8384fb8f AM |
505 | if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym)) |
506 | { | |
507 | symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size; | |
695344c0 | 508 | /* xgettext:c-format */ |
871b3ab2 | 509 | _bfd_error_handler (_("%pB symbol number %lu references" |
63a5468a | 510 | " nonexistent SHT_SYMTAB_SHNDX section"), |
4eca0228 | 511 | ibfd, (unsigned long) symoffset); |
4dd07732 AM |
512 | if (alloc_intsym != NULL) |
513 | free (alloc_intsym); | |
8384fb8f AM |
514 | intsym_buf = NULL; |
515 | goto out; | |
516 | } | |
6cdc0ccc AM |
517 | |
518 | out: | |
519 | if (alloc_ext != NULL) | |
520 | free (alloc_ext); | |
521 | if (alloc_extshndx != NULL) | |
522 | free (alloc_extshndx); | |
523 | ||
524 | return intsym_buf; | |
525 | } | |
526 | ||
5cab59f6 AM |
527 | /* Look up a symbol name. */ |
528 | const char * | |
be8dd2ca AM |
529 | bfd_elf_sym_name (bfd *abfd, |
530 | Elf_Internal_Shdr *symtab_hdr, | |
26c61ae5 L |
531 | Elf_Internal_Sym *isym, |
532 | asection *sym_sec) | |
5cab59f6 | 533 | { |
26c61ae5 | 534 | const char *name; |
5cab59f6 | 535 | unsigned int iname = isym->st_name; |
be8dd2ca | 536 | unsigned int shindex = symtab_hdr->sh_link; |
26c61ae5 | 537 | |
138f35cc JJ |
538 | if (iname == 0 && ELF_ST_TYPE (isym->st_info) == STT_SECTION |
539 | /* Check for a bogus st_shndx to avoid crashing. */ | |
4fbb74a6 | 540 | && isym->st_shndx < elf_numsections (abfd)) |
5cab59f6 AM |
541 | { |
542 | iname = elf_elfsections (abfd)[isym->st_shndx]->sh_name; | |
543 | shindex = elf_elfheader (abfd)->e_shstrndx; | |
544 | } | |
545 | ||
26c61ae5 L |
546 | name = bfd_elf_string_from_elf_section (abfd, shindex, iname); |
547 | if (name == NULL) | |
548 | name = "(null)"; | |
549 | else if (sym_sec && *name == '\0') | |
550 | name = bfd_section_name (abfd, sym_sec); | |
551 | ||
552 | return name; | |
5cab59f6 AM |
553 | } |
554 | ||
dbb410c3 AM |
555 | /* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP |
556 | sections. The first element is the flags, the rest are section | |
557 | pointers. */ | |
558 | ||
559 | typedef union elf_internal_group { | |
560 | Elf_Internal_Shdr *shdr; | |
561 | unsigned int flags; | |
562 | } Elf_Internal_Group; | |
563 | ||
b885599b AM |
564 | /* Return the name of the group signature symbol. Why isn't the |
565 | signature just a string? */ | |
566 | ||
567 | static const char * | |
217aa764 | 568 | group_signature (bfd *abfd, Elf_Internal_Shdr *ghdr) |
b885599b | 569 | { |
9dce4196 | 570 | Elf_Internal_Shdr *hdr; |
9dce4196 AM |
571 | unsigned char esym[sizeof (Elf64_External_Sym)]; |
572 | Elf_External_Sym_Shndx eshndx; | |
573 | Elf_Internal_Sym isym; | |
b885599b | 574 | |
13792e9d L |
575 | /* First we need to ensure the symbol table is available. Make sure |
576 | that it is a symbol table section. */ | |
4fbb74a6 AM |
577 | if (ghdr->sh_link >= elf_numsections (abfd)) |
578 | return NULL; | |
13792e9d L |
579 | hdr = elf_elfsections (abfd) [ghdr->sh_link]; |
580 | if (hdr->sh_type != SHT_SYMTAB | |
581 | || ! bfd_section_from_shdr (abfd, ghdr->sh_link)) | |
b885599b AM |
582 | return NULL; |
583 | ||
9dce4196 AM |
584 | /* Go read the symbol. */ |
585 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
6cdc0ccc AM |
586 | if (bfd_elf_get_elf_syms (abfd, hdr, 1, ghdr->sh_info, |
587 | &isym, esym, &eshndx) == NULL) | |
b885599b | 588 | return NULL; |
9dce4196 | 589 | |
26c61ae5 | 590 | return bfd_elf_sym_name (abfd, hdr, &isym, NULL); |
b885599b AM |
591 | } |
592 | ||
dbb410c3 AM |
593 | /* Set next_in_group list pointer, and group name for NEWSECT. */ |
594 | ||
b34976b6 | 595 | static bfd_boolean |
217aa764 | 596 | setup_group (bfd *abfd, Elf_Internal_Shdr *hdr, asection *newsect) |
dbb410c3 AM |
597 | { |
598 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
599 | ||
600 | /* If num_group is zero, read in all SHT_GROUP sections. The count | |
601 | is set to -1 if there are no SHT_GROUP sections. */ | |
602 | if (num_group == 0) | |
603 | { | |
604 | unsigned int i, shnum; | |
605 | ||
606 | /* First count the number of groups. If we have a SHT_GROUP | |
607 | section with just a flag word (ie. sh_size is 4), ignore it. */ | |
9ad5cbcf | 608 | shnum = elf_numsections (abfd); |
dbb410c3 | 609 | num_group = 0; |
08a40648 | 610 | |
44534af3 | 611 | #define IS_VALID_GROUP_SECTION_HEADER(shdr, minsize) \ |
1783205a | 612 | ( (shdr)->sh_type == SHT_GROUP \ |
44534af3 | 613 | && (shdr)->sh_size >= minsize \ |
1783205a NC |
614 | && (shdr)->sh_entsize == GRP_ENTRY_SIZE \ |
615 | && ((shdr)->sh_size % GRP_ENTRY_SIZE) == 0) | |
08a40648 | 616 | |
dbb410c3 AM |
617 | for (i = 0; i < shnum; i++) |
618 | { | |
619 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 620 | |
44534af3 | 621 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 AM |
622 | num_group += 1; |
623 | } | |
624 | ||
625 | if (num_group == 0) | |
20dbb49d L |
626 | { |
627 | num_group = (unsigned) -1; | |
628 | elf_tdata (abfd)->num_group = num_group; | |
ce497010 | 629 | elf_tdata (abfd)->group_sect_ptr = NULL; |
20dbb49d L |
630 | } |
631 | else | |
dbb410c3 AM |
632 | { |
633 | /* We keep a list of elf section headers for group sections, | |
634 | so we can find them quickly. */ | |
20dbb49d | 635 | bfd_size_type amt; |
d0fb9a8d | 636 | |
20dbb49d | 637 | elf_tdata (abfd)->num_group = num_group; |
a50b1753 | 638 | elf_tdata (abfd)->group_sect_ptr = (Elf_Internal_Shdr **) |
07d6d2b8 | 639 | bfd_alloc2 (abfd, num_group, sizeof (Elf_Internal_Shdr *)); |
dbb410c3 | 640 | if (elf_tdata (abfd)->group_sect_ptr == NULL) |
b34976b6 | 641 | return FALSE; |
4bba0fb1 AM |
642 | memset (elf_tdata (abfd)->group_sect_ptr, 0, |
643 | num_group * sizeof (Elf_Internal_Shdr *)); | |
dbb410c3 | 644 | num_group = 0; |
ce497010 | 645 | |
dbb410c3 AM |
646 | for (i = 0; i < shnum; i++) |
647 | { | |
648 | Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i]; | |
1783205a | 649 | |
44534af3 | 650 | if (IS_VALID_GROUP_SECTION_HEADER (shdr, 2 * GRP_ENTRY_SIZE)) |
dbb410c3 | 651 | { |
973ffd63 | 652 | unsigned char *src; |
dbb410c3 AM |
653 | Elf_Internal_Group *dest; |
654 | ||
07d6d2b8 AM |
655 | /* Make sure the group section has a BFD section |
656 | attached to it. */ | |
657 | if (!bfd_section_from_shdr (abfd, i)) | |
658 | return FALSE; | |
659 | ||
dbb410c3 AM |
660 | /* Add to list of sections. */ |
661 | elf_tdata (abfd)->group_sect_ptr[num_group] = shdr; | |
662 | num_group += 1; | |
663 | ||
664 | /* Read the raw contents. */ | |
665 | BFD_ASSERT (sizeof (*dest) >= 4); | |
666 | amt = shdr->sh_size * sizeof (*dest) / 4; | |
a50b1753 | 667 | shdr->contents = (unsigned char *) |
eed5def8 | 668 | bfd_alloc2 (abfd, shdr->sh_size, sizeof (*dest) / 4); |
1783205a NC |
669 | /* PR binutils/4110: Handle corrupt group headers. */ |
670 | if (shdr->contents == NULL) | |
671 | { | |
672 | _bfd_error_handler | |
695344c0 | 673 | /* xgettext:c-format */ |
871b3ab2 | 674 | (_("%pB: corrupt size field in group section" |
2dcf00ce AM |
675 | " header: %#" PRIx64), |
676 | abfd, (uint64_t) shdr->sh_size); | |
1783205a | 677 | bfd_set_error (bfd_error_bad_value); |
493a3386 NC |
678 | -- num_group; |
679 | continue; | |
1783205a NC |
680 | } |
681 | ||
682 | memset (shdr->contents, 0, amt); | |
683 | ||
684 | if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 | |
dbb410c3 AM |
685 | || (bfd_bread (shdr->contents, shdr->sh_size, abfd) |
686 | != shdr->sh_size)) | |
493a3386 NC |
687 | { |
688 | _bfd_error_handler | |
695344c0 | 689 | /* xgettext:c-format */ |
871b3ab2 | 690 | (_("%pB: invalid size field in group section" |
2dcf00ce AM |
691 | " header: %#" PRIx64 ""), |
692 | abfd, (uint64_t) shdr->sh_size); | |
493a3386 NC |
693 | bfd_set_error (bfd_error_bad_value); |
694 | -- num_group; | |
63a5468a AM |
695 | /* PR 17510: If the group contents are even |
696 | partially corrupt, do not allow any of the | |
697 | contents to be used. */ | |
493a3386 NC |
698 | memset (shdr->contents, 0, amt); |
699 | continue; | |
700 | } | |
708d7d0d | 701 | |
dbb410c3 AM |
702 | /* Translate raw contents, a flag word followed by an |
703 | array of elf section indices all in target byte order, | |
704 | to the flag word followed by an array of elf section | |
705 | pointers. */ | |
706 | src = shdr->contents + shdr->sh_size; | |
707 | dest = (Elf_Internal_Group *) (shdr->contents + amt); | |
06614111 | 708 | |
dbb410c3 AM |
709 | while (1) |
710 | { | |
711 | unsigned int idx; | |
712 | ||
713 | src -= 4; | |
714 | --dest; | |
715 | idx = H_GET_32 (abfd, src); | |
716 | if (src == shdr->contents) | |
717 | { | |
718 | dest->flags = idx; | |
b885599b AM |
719 | if (shdr->bfd_section != NULL && (idx & GRP_COMDAT)) |
720 | shdr->bfd_section->flags | |
721 | |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; | |
dbb410c3 AM |
722 | break; |
723 | } | |
4bba0fb1 | 724 | if (idx < shnum) |
bae363f1 L |
725 | { |
726 | dest->shdr = elf_elfsections (abfd)[idx]; | |
727 | /* PR binutils/23199: All sections in a | |
728 | section group should be marked with | |
729 | SHF_GROUP. But some tools generate | |
730 | broken objects without SHF_GROUP. Fix | |
731 | them up here. */ | |
732 | dest->shdr->sh_flags |= SHF_GROUP; | |
733 | } | |
4bba0fb1 AM |
734 | if (idx >= shnum |
735 | || dest->shdr->sh_type == SHT_GROUP) | |
dbb410c3 | 736 | { |
4eca0228 | 737 | _bfd_error_handler |
4bba0fb1 AM |
738 | (_("%pB: invalid entry in SHT_GROUP section [%u]"), |
739 | abfd, i); | |
740 | dest->shdr = NULL; | |
dbb410c3 | 741 | } |
dbb410c3 AM |
742 | } |
743 | } | |
744 | } | |
493a3386 NC |
745 | |
746 | /* PR 17510: Corrupt binaries might contain invalid groups. */ | |
747 | if (num_group != (unsigned) elf_tdata (abfd)->num_group) | |
748 | { | |
749 | elf_tdata (abfd)->num_group = num_group; | |
750 | ||
751 | /* If all groups are invalid then fail. */ | |
752 | if (num_group == 0) | |
753 | { | |
754 | elf_tdata (abfd)->group_sect_ptr = NULL; | |
755 | elf_tdata (abfd)->num_group = num_group = -1; | |
4eca0228 | 756 | _bfd_error_handler |
871b3ab2 | 757 | (_("%pB: no valid group sections found"), abfd); |
493a3386 NC |
758 | bfd_set_error (bfd_error_bad_value); |
759 | } | |
760 | } | |
dbb410c3 AM |
761 | } |
762 | } | |
763 | ||
764 | if (num_group != (unsigned) -1) | |
765 | { | |
564e11c9 JW |
766 | unsigned int search_offset = elf_tdata (abfd)->group_search_offset; |
767 | unsigned int j; | |
dbb410c3 | 768 | |
564e11c9 | 769 | for (j = 0; j < num_group; j++) |
dbb410c3 | 770 | { |
564e11c9 JW |
771 | /* Begin search from previous found group. */ |
772 | unsigned i = (j + search_offset) % num_group; | |
773 | ||
dbb410c3 | 774 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; |
ce497010 | 775 | Elf_Internal_Group *idx; |
0c54f692 | 776 | bfd_size_type n_elt; |
ce497010 NC |
777 | |
778 | if (shdr == NULL) | |
779 | continue; | |
780 | ||
781 | idx = (Elf_Internal_Group *) shdr->contents; | |
0c54f692 NC |
782 | if (idx == NULL || shdr->sh_size < 4) |
783 | { | |
784 | /* See PR 21957 for a reproducer. */ | |
785 | /* xgettext:c-format */ | |
871b3ab2 | 786 | _bfd_error_handler (_("%pB: group section '%pA' has no contents"), |
0c54f692 NC |
787 | abfd, shdr->bfd_section); |
788 | elf_tdata (abfd)->group_sect_ptr[i] = NULL; | |
789 | bfd_set_error (bfd_error_bad_value); | |
790 | return FALSE; | |
791 | } | |
ce497010 | 792 | n_elt = shdr->sh_size / 4; |
dbb410c3 AM |
793 | |
794 | /* Look through this group's sections to see if current | |
795 | section is a member. */ | |
796 | while (--n_elt != 0) | |
797 | if ((++idx)->shdr == hdr) | |
798 | { | |
e0e8c97f | 799 | asection *s = NULL; |
dbb410c3 AM |
800 | |
801 | /* We are a member of this group. Go looking through | |
802 | other members to see if any others are linked via | |
803 | next_in_group. */ | |
804 | idx = (Elf_Internal_Group *) shdr->contents; | |
805 | n_elt = shdr->sh_size / 4; | |
806 | while (--n_elt != 0) | |
4bba0fb1 AM |
807 | if ((++idx)->shdr != NULL |
808 | && (s = idx->shdr->bfd_section) != NULL | |
945906ff | 809 | && elf_next_in_group (s) != NULL) |
dbb410c3 AM |
810 | break; |
811 | if (n_elt != 0) | |
812 | { | |
dbb410c3 AM |
813 | /* Snarf the group name from other member, and |
814 | insert current section in circular list. */ | |
945906ff AM |
815 | elf_group_name (newsect) = elf_group_name (s); |
816 | elf_next_in_group (newsect) = elf_next_in_group (s); | |
817 | elf_next_in_group (s) = newsect; | |
dbb410c3 AM |
818 | } |
819 | else | |
820 | { | |
dbb410c3 AM |
821 | const char *gname; |
822 | ||
b885599b AM |
823 | gname = group_signature (abfd, shdr); |
824 | if (gname == NULL) | |
b34976b6 | 825 | return FALSE; |
945906ff | 826 | elf_group_name (newsect) = gname; |
dbb410c3 AM |
827 | |
828 | /* Start a circular list with one element. */ | |
945906ff | 829 | elf_next_in_group (newsect) = newsect; |
dbb410c3 | 830 | } |
b885599b | 831 | |
9dce4196 AM |
832 | /* If the group section has been created, point to the |
833 | new member. */ | |
dbb410c3 | 834 | if (shdr->bfd_section != NULL) |
945906ff | 835 | elf_next_in_group (shdr->bfd_section) = newsect; |
b885599b | 836 | |
564e11c9 JW |
837 | elf_tdata (abfd)->group_search_offset = i; |
838 | j = num_group - 1; | |
dbb410c3 AM |
839 | break; |
840 | } | |
841 | } | |
842 | } | |
843 | ||
945906ff | 844 | if (elf_group_name (newsect) == NULL) |
dbb410c3 | 845 | { |
695344c0 | 846 | /* xgettext:c-format */ |
871b3ab2 | 847 | _bfd_error_handler (_("%pB: no group info for section '%pA'"), |
4eca0228 | 848 | abfd, newsect); |
493a3386 | 849 | return FALSE; |
dbb410c3 | 850 | } |
b34976b6 | 851 | return TRUE; |
dbb410c3 AM |
852 | } |
853 | ||
3d7f7666 | 854 | bfd_boolean |
dd863624 | 855 | _bfd_elf_setup_sections (bfd *abfd) |
3d7f7666 L |
856 | { |
857 | unsigned int i; | |
858 | unsigned int num_group = elf_tdata (abfd)->num_group; | |
859 | bfd_boolean result = TRUE; | |
dd863624 L |
860 | asection *s; |
861 | ||
862 | /* Process SHF_LINK_ORDER. */ | |
863 | for (s = abfd->sections; s != NULL; s = s->next) | |
864 | { | |
865 | Elf_Internal_Shdr *this_hdr = &elf_section_data (s)->this_hdr; | |
866 | if ((this_hdr->sh_flags & SHF_LINK_ORDER) != 0) | |
867 | { | |
868 | unsigned int elfsec = this_hdr->sh_link; | |
869 | /* FIXME: The old Intel compiler and old strip/objcopy may | |
870 | not set the sh_link or sh_info fields. Hence we could | |
871 | get the situation where elfsec is 0. */ | |
872 | if (elfsec == 0) | |
873 | { | |
4fbb74a6 | 874 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
dd863624 L |
875 | if (bed->link_order_error_handler) |
876 | bed->link_order_error_handler | |
695344c0 | 877 | /* xgettext:c-format */ |
871b3ab2 | 878 | (_("%pB: warning: sh_link not set for section `%pA'"), |
dd863624 L |
879 | abfd, s); |
880 | } | |
881 | else | |
882 | { | |
91d6fa6a | 883 | asection *linksec = NULL; |
25bbc984 | 884 | |
4fbb74a6 AM |
885 | if (elfsec < elf_numsections (abfd)) |
886 | { | |
887 | this_hdr = elf_elfsections (abfd)[elfsec]; | |
91d6fa6a | 888 | linksec = this_hdr->bfd_section; |
4fbb74a6 | 889 | } |
25bbc984 L |
890 | |
891 | /* PR 1991, 2008: | |
892 | Some strip/objcopy may leave an incorrect value in | |
893 | sh_link. We don't want to proceed. */ | |
91d6fa6a | 894 | if (linksec == NULL) |
25bbc984 | 895 | { |
4eca0228 | 896 | _bfd_error_handler |
695344c0 | 897 | /* xgettext:c-format */ |
871b3ab2 | 898 | (_("%pB: sh_link [%d] in section `%pA' is incorrect"), |
c08bb8dd | 899 | s->owner, elfsec, s); |
25bbc984 L |
900 | result = FALSE; |
901 | } | |
902 | ||
91d6fa6a | 903 | elf_linked_to_section (s) = linksec; |
dd863624 L |
904 | } |
905 | } | |
53720c49 AM |
906 | else if (this_hdr->sh_type == SHT_GROUP |
907 | && elf_next_in_group (s) == NULL) | |
908 | { | |
4eca0228 | 909 | _bfd_error_handler |
695344c0 | 910 | /* xgettext:c-format */ |
871b3ab2 | 911 | (_("%pB: SHT_GROUP section [index %d] has no SHF_GROUP sections"), |
53720c49 AM |
912 | abfd, elf_section_data (s)->this_idx); |
913 | result = FALSE; | |
914 | } | |
dd863624 | 915 | } |
3d7f7666 | 916 | |
dd863624 | 917 | /* Process section groups. */ |
3d7f7666 L |
918 | if (num_group == (unsigned) -1) |
919 | return result; | |
920 | ||
921 | for (i = 0; i < num_group; i++) | |
922 | { | |
923 | Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i]; | |
4b0e8a5f NC |
924 | Elf_Internal_Group *idx; |
925 | unsigned int n_elt; | |
3d7f7666 | 926 | |
4b0e8a5f NC |
927 | /* PR binutils/18758: Beware of corrupt binaries with invalid group data. */ |
928 | if (shdr == NULL || shdr->bfd_section == NULL || shdr->contents == NULL) | |
929 | { | |
4eca0228 | 930 | _bfd_error_handler |
695344c0 | 931 | /* xgettext:c-format */ |
871b3ab2 | 932 | (_("%pB: section group entry number %u is corrupt"), |
4b0e8a5f NC |
933 | abfd, i); |
934 | result = FALSE; | |
935 | continue; | |
936 | } | |
937 | ||
938 | idx = (Elf_Internal_Group *) shdr->contents; | |
939 | n_elt = shdr->sh_size / 4; | |
1b786873 | 940 | |
3d7f7666 | 941 | while (--n_elt != 0) |
24d3e51b NC |
942 | { |
943 | ++ idx; | |
944 | ||
945 | if (idx->shdr == NULL) | |
946 | continue; | |
947 | else if (idx->shdr->bfd_section) | |
948 | elf_sec_group (idx->shdr->bfd_section) = shdr->bfd_section; | |
db4677b8 AM |
949 | else if (idx->shdr->sh_type != SHT_RELA |
950 | && idx->shdr->sh_type != SHT_REL) | |
24d3e51b NC |
951 | { |
952 | /* There are some unknown sections in the group. */ | |
953 | _bfd_error_handler | |
954 | /* xgettext:c-format */ | |
871b3ab2 | 955 | (_("%pB: unknown type [%#x] section `%s' in group [%pA]"), |
24d3e51b NC |
956 | abfd, |
957 | idx->shdr->sh_type, | |
958 | bfd_elf_string_from_elf_section (abfd, | |
959 | (elf_elfheader (abfd) | |
960 | ->e_shstrndx), | |
961 | idx->shdr->sh_name), | |
962 | shdr->bfd_section); | |
963 | result = FALSE; | |
964 | } | |
965 | } | |
3d7f7666 | 966 | } |
24d3e51b | 967 | |
3d7f7666 L |
968 | return result; |
969 | } | |
970 | ||
72adc230 AM |
971 | bfd_boolean |
972 | bfd_elf_is_group_section (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
973 | { | |
974 | return elf_next_in_group (sec) != NULL; | |
975 | } | |
976 | ||
cb7f4b29 AM |
977 | const char * |
978 | bfd_elf_group_name (bfd *abfd ATTRIBUTE_UNUSED, const asection *sec) | |
979 | { | |
980 | if (elf_sec_group (sec) != NULL) | |
981 | return elf_group_name (sec); | |
982 | return NULL; | |
983 | } | |
984 | ||
f6fe1ccd L |
985 | static char * |
986 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
987 | { | |
988 | unsigned int len = strlen (name); | |
989 | char *new_name = bfd_alloc (abfd, len + 2); | |
990 | if (new_name == NULL) | |
991 | return NULL; | |
992 | new_name[0] = '.'; | |
993 | new_name[1] = 'z'; | |
994 | memcpy (new_name + 2, name + 1, len); | |
995 | return new_name; | |
996 | } | |
997 | ||
998 | static char * | |
999 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
1000 | { | |
1001 | unsigned int len = strlen (name); | |
1002 | char *new_name = bfd_alloc (abfd, len); | |
1003 | if (new_name == NULL) | |
1004 | return NULL; | |
1005 | new_name[0] = '.'; | |
1006 | memcpy (new_name + 1, name + 2, len - 1); | |
1007 | return new_name; | |
1008 | } | |
1009 | ||
cc5277b1 ML |
1010 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
1011 | ||
1012 | struct lto_section | |
1013 | { | |
1014 | int16_t major_version; | |
1015 | int16_t minor_version; | |
1016 | unsigned char slim_object; | |
1017 | ||
1018 | /* Flags is a private field that is not defined publicly. */ | |
1019 | uint16_t flags; | |
1020 | }; | |
1021 | ||
252b5132 RH |
1022 | /* Make a BFD section from an ELF section. We store a pointer to the |
1023 | BFD section in the bfd_section field of the header. */ | |
1024 | ||
b34976b6 | 1025 | bfd_boolean |
217aa764 AM |
1026 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1027 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1028 | const char *name, |
1029 | int shindex) | |
252b5132 RH |
1030 | { |
1031 | asection *newsect; | |
1032 | flagword flags; | |
9c5bfbb7 | 1033 | const struct elf_backend_data *bed; |
252b5132 RH |
1034 | |
1035 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1036 | return TRUE; |
252b5132 RH |
1037 | |
1038 | newsect = bfd_make_section_anyway (abfd, name); | |
1039 | if (newsect == NULL) | |
b34976b6 | 1040 | return FALSE; |
252b5132 | 1041 | |
1829f4b2 AM |
1042 | hdr->bfd_section = newsect; |
1043 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1044 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1045 | |
2f89ff8d L |
1046 | /* Always use the real type/flags. */ |
1047 | elf_section_type (newsect) = hdr->sh_type; | |
1048 | elf_section_flags (newsect) = hdr->sh_flags; | |
1049 | ||
252b5132 RH |
1050 | newsect->filepos = hdr->sh_offset; |
1051 | ||
1052 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
1053 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
1054 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 1055 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 1056 | return FALSE; |
252b5132 RH |
1057 | |
1058 | flags = SEC_NO_FLAGS; | |
1059 | if (hdr->sh_type != SHT_NOBITS) | |
1060 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1061 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1062 | flags |= SEC_GROUP; |
252b5132 RH |
1063 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1064 | { | |
1065 | flags |= SEC_ALLOC; | |
1066 | if (hdr->sh_type != SHT_NOBITS) | |
1067 | flags |= SEC_LOAD; | |
1068 | } | |
1069 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1070 | flags |= SEC_READONLY; | |
1071 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1072 | flags |= SEC_CODE; | |
1073 | else if ((flags & SEC_LOAD) != 0) | |
1074 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1075 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1076 | { | |
1077 | flags |= SEC_MERGE; | |
1078 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1079 | } |
84865015 NC |
1080 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1081 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1082 | if (hdr->sh_flags & SHF_GROUP) |
1083 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1084 | return FALSE; |
13ae64f3 JJ |
1085 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1086 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1087 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1088 | flags |= SEC_EXCLUDE; | |
252b5132 | 1089 | |
df3a023b AM |
1090 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1091 | { | |
1092 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1093 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1094 | byte. */ | |
1095 | case ELFOSABI_NONE: | |
1096 | case ELFOSABI_GNU: | |
1097 | case ELFOSABI_FREEBSD: | |
1098 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) | |
1099 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1100 | break; | |
1101 | } | |
1102 | ||
3d2b39cf | 1103 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1104 | { |
3d2b39cf L |
1105 | /* The debugging sections appear to be recognized only by name, |
1106 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1107 | if (name [0] == '.') |
1108 | { | |
f073ced3 AM |
1109 | const char *p; |
1110 | int n; | |
1111 | if (name[1] == 'd') | |
1112 | p = ".debug", n = 6; | |
1113 | else if (name[1] == 'g' && name[2] == 'n') | |
1114 | p = ".gnu.linkonce.wi.", n = 17; | |
1115 | else if (name[1] == 'g' && name[2] == 'd') | |
1116 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
1117 | else if (name[1] == 'l') | |
1118 | p = ".line", n = 5; | |
1119 | else if (name[1] == 's') | |
1120 | p = ".stab", n = 5; | |
1121 | else if (name[1] == 'z') | |
1122 | p = ".zdebug", n = 7; | |
1123 | else | |
1124 | p = NULL, n = 0; | |
1125 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
1126 | flags |= SEC_DEBUGGING; |
1127 | } | |
1128 | } | |
252b5132 RH |
1129 | |
1130 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1131 | only link a single copy of the section. This is used to support | |
1132 | g++. g++ will emit each template expansion in its own section. | |
1133 | The symbols will be defined as weak, so that multiple definitions | |
1134 | are permitted. The GNU linker extension is to actually discard | |
1135 | all but one of the sections. */ | |
0112cd26 | 1136 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1137 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1138 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1139 | ||
fa152c49 JW |
1140 | bed = get_elf_backend_data (abfd); |
1141 | if (bed->elf_backend_section_flags) | |
1142 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1143 | return FALSE; |
fa152c49 | 1144 | |
252b5132 | 1145 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 1146 | return FALSE; |
252b5132 | 1147 | |
718175fa JK |
1148 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1149 | separate debug info files which may have the segments offsets corrupted. | |
1150 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1151 | if (hdr->sh_type == SHT_NOTE) | |
1152 | { | |
baea7ef1 | 1153 | bfd_byte *contents; |
718175fa | 1154 | |
baea7ef1 | 1155 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1156 | return FALSE; |
1157 | ||
276da9b3 L |
1158 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1159 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1160 | free (contents); |
1161 | } | |
1162 | ||
252b5132 RH |
1163 | if ((flags & SEC_ALLOC) != 0) |
1164 | { | |
1165 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1166 | unsigned int i, nload; |
1167 | ||
1168 | /* Some ELF linkers produce binaries with all the program header | |
1169 | p_paddr fields zero. If we have such a binary with more than | |
1170 | one PT_LOAD header, then leave the section lma equal to vma | |
1171 | so that we don't create sections with overlapping lma. */ | |
1172 | phdr = elf_tdata (abfd)->phdr; | |
1173 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1174 | if (phdr->p_paddr != 0) | |
1175 | break; | |
1176 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1177 | ++nload; | |
1178 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1179 | return TRUE; | |
252b5132 | 1180 | |
252b5132 RH |
1181 | phdr = elf_tdata (abfd)->phdr; |
1182 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1183 | { | |
86b2281f AM |
1184 | if (((phdr->p_type == PT_LOAD |
1185 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1186 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1187 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1188 | { |
88967714 AM |
1189 | if ((flags & SEC_LOAD) == 0) |
1190 | newsect->lma = (phdr->p_paddr | |
1191 | + hdr->sh_addr - phdr->p_vaddr); | |
1192 | else | |
1193 | /* We used to use the same adjustment for SEC_LOAD | |
1194 | sections, but that doesn't work if the segment | |
1195 | is packed with code from multiple VMAs. | |
1196 | Instead we calculate the section LMA based on | |
1197 | the segment LMA. It is assumed that the | |
1198 | segment will contain sections with contiguous | |
1199 | LMAs, even if the VMAs are not. */ | |
1200 | newsect->lma = (phdr->p_paddr | |
1201 | + hdr->sh_offset - phdr->p_offset); | |
1202 | ||
1203 | /* With contiguous segments, we can't tell from file | |
1204 | offsets whether a section with zero size should | |
1205 | be placed at the end of one segment or the | |
1206 | beginning of the next. Decide based on vaddr. */ | |
1207 | if (hdr->sh_addr >= phdr->p_vaddr | |
1208 | && (hdr->sh_addr + hdr->sh_size | |
1209 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1210 | break; | |
252b5132 RH |
1211 | } |
1212 | } | |
1213 | } | |
1214 | ||
4a114e3e L |
1215 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1216 | .zdebug_*, after the section flags is set. */ | |
1217 | if ((flags & SEC_DEBUGGING) | |
1218 | && ((name[1] == 'd' && name[6] == '_') | |
1219 | || (name[1] == 'z' && name[7] == '_'))) | |
1220 | { | |
1221 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1222 | int compression_header_size; |
dab394de | 1223 | bfd_size_type uncompressed_size; |
4207142d | 1224 | unsigned int uncompressed_align_power; |
151411f8 L |
1225 | bfd_boolean compressed |
1226 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1227 | &compression_header_size, |
4207142d MW |
1228 | &uncompressed_size, |
1229 | &uncompressed_align_power); | |
151411f8 | 1230 | if (compressed) |
4a114e3e L |
1231 | { |
1232 | /* Compressed section. Check if we should decompress. */ | |
1233 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1234 | action = decompress; | |
1235 | } | |
151411f8 L |
1236 | |
1237 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1238 | section. Check if we should compress. */ | |
1239 | if (action == nothing) | |
4a114e3e | 1240 | { |
151411f8 L |
1241 | if (newsect->size != 0 |
1242 | && (abfd->flags & BFD_COMPRESS) | |
1243 | && compression_header_size >= 0 | |
dab394de | 1244 | && uncompressed_size > 0 |
151411f8 L |
1245 | && (!compressed |
1246 | || ((compression_header_size > 0) | |
1247 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1248 | action = compress; |
151411f8 L |
1249 | else |
1250 | return TRUE; | |
4a114e3e L |
1251 | } |
1252 | ||
151411f8 | 1253 | if (action == compress) |
4a114e3e | 1254 | { |
4a114e3e L |
1255 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1256 | { | |
4eca0228 | 1257 | _bfd_error_handler |
695344c0 | 1258 | /* xgettext:c-format */ |
871b3ab2 | 1259 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1260 | abfd, name); |
1261 | return FALSE; | |
1262 | } | |
151411f8 L |
1263 | } |
1264 | else | |
1265 | { | |
4a114e3e L |
1266 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1267 | { | |
4eca0228 | 1268 | _bfd_error_handler |
695344c0 | 1269 | /* xgettext:c-format */ |
871b3ab2 | 1270 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1271 | abfd, name); |
1272 | return FALSE; | |
1273 | } | |
151411f8 L |
1274 | } |
1275 | ||
f6fe1ccd | 1276 | if (abfd->is_linker_input) |
151411f8 | 1277 | { |
f6fe1ccd L |
1278 | if (name[1] == 'z' |
1279 | && (action == decompress | |
1280 | || (action == compress | |
1281 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1282 | { |
f6fe1ccd L |
1283 | /* Convert section name from .zdebug_* to .debug_* so |
1284 | that linker will consider this section as a debug | |
1285 | section. */ | |
1286 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1287 | if (new_name == NULL) |
1288 | return FALSE; | |
f6fe1ccd | 1289 | bfd_rename_section (abfd, newsect, new_name); |
151411f8 | 1290 | } |
4a114e3e | 1291 | } |
f6fe1ccd L |
1292 | else |
1293 | /* For objdump, don't rename the section. For objcopy, delay | |
1294 | section rename to elf_fake_sections. */ | |
1295 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1296 | } |
1297 | ||
cc5277b1 ML |
1298 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1299 | section. */ | |
1300 | const char *lto_section_name = ".gnu.lto_.lto."; | |
1301 | if (strncmp (name, lto_section_name, strlen (lto_section_name)) == 0) | |
1302 | { | |
1303 | struct lto_section lsection; | |
1304 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1305 | sizeof (struct lto_section))) | |
1306 | abfd->lto_slim_object = lsection.slim_object; | |
1307 | } | |
1308 | ||
b34976b6 | 1309 | return TRUE; |
252b5132 RH |
1310 | } |
1311 | ||
84865015 NC |
1312 | const char *const bfd_elf_section_type_names[] = |
1313 | { | |
252b5132 RH |
1314 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1315 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1316 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1317 | }; | |
1318 | ||
1049f94e | 1319 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1320 | output, and the reloc is against an external symbol, and nothing |
1321 | has given us any additional addend, the resulting reloc will also | |
1322 | be against the same symbol. In such a case, we don't want to | |
1323 | change anything about the way the reloc is handled, since it will | |
1324 | all be done at final link time. Rather than put special case code | |
1325 | into bfd_perform_relocation, all the reloc types use this howto | |
1326 | function. It just short circuits the reloc if producing | |
1049f94e | 1327 | relocatable output against an external symbol. */ |
252b5132 | 1328 | |
252b5132 | 1329 | bfd_reloc_status_type |
217aa764 AM |
1330 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1331 | arelent *reloc_entry, | |
1332 | asymbol *symbol, | |
1333 | void *data ATTRIBUTE_UNUSED, | |
1334 | asection *input_section, | |
1335 | bfd *output_bfd, | |
1336 | char **error_message ATTRIBUTE_UNUSED) | |
1337 | { | |
1338 | if (output_bfd != NULL | |
252b5132 RH |
1339 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1340 | && (! reloc_entry->howto->partial_inplace | |
1341 | || reloc_entry->addend == 0)) | |
1342 | { | |
1343 | reloc_entry->address += input_section->output_offset; | |
1344 | return bfd_reloc_ok; | |
1345 | } | |
1346 | ||
1347 | return bfd_reloc_continue; | |
1348 | } | |
1349 | \f | |
84865015 NC |
1350 | /* Returns TRUE if section A matches section B. |
1351 | Names, addresses and links may be different, but everything else | |
1352 | should be the same. */ | |
1353 | ||
1354 | static bfd_boolean | |
5522f910 NC |
1355 | section_match (const Elf_Internal_Shdr * a, |
1356 | const Elf_Internal_Shdr * b) | |
84865015 | 1357 | { |
ac85e67c AM |
1358 | if (a->sh_type != b->sh_type |
1359 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1360 | || a->sh_addralign != b->sh_addralign | |
1361 | || a->sh_entsize != b->sh_entsize) | |
1362 | return FALSE; | |
1363 | if (a->sh_type == SHT_SYMTAB | |
1364 | || a->sh_type == SHT_STRTAB) | |
1365 | return TRUE; | |
1366 | return a->sh_size == b->sh_size; | |
84865015 NC |
1367 | } |
1368 | ||
1369 | /* Find a section in OBFD that has the same characteristics | |
1370 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1371 | none can be found. Check's section HINT first, as this is likely | |
1372 | to be the correct section. */ | |
1373 | ||
1374 | static unsigned int | |
5cc4ca83 ST |
1375 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1376 | const unsigned int hint) | |
84865015 NC |
1377 | { |
1378 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1379 | unsigned int i; | |
1380 | ||
a55c9876 NC |
1381 | BFD_ASSERT (iheader != NULL); |
1382 | ||
1383 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1384 | if (hint < elf_numsections (obfd) |
1385 | && oheaders[hint] != NULL | |
a55c9876 | 1386 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1387 | return hint; |
1388 | ||
1389 | for (i = 1; i < elf_numsections (obfd); i++) | |
1390 | { | |
1391 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1392 | ||
a55c9876 NC |
1393 | if (oheader == NULL) |
1394 | continue; | |
84865015 NC |
1395 | if (section_match (oheader, iheader)) |
1396 | /* FIXME: Do we care if there is a potential for | |
1397 | multiple matches ? */ | |
1398 | return i; | |
1399 | } | |
1400 | ||
1401 | return SHN_UNDEF; | |
1402 | } | |
1403 | ||
5522f910 NC |
1404 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1405 | Processor specific section, based upon a matching input section. | |
1406 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1407 | |
5522f910 NC |
1408 | static bfd_boolean |
1409 | copy_special_section_fields (const bfd *ibfd, | |
1410 | bfd *obfd, | |
1411 | const Elf_Internal_Shdr *iheader, | |
1412 | Elf_Internal_Shdr *oheader, | |
1413 | const unsigned int secnum) | |
1414 | { | |
1415 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1416 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1417 | bfd_boolean changed = FALSE; | |
1418 | unsigned int sh_link; | |
1419 | ||
1420 | if (oheader->sh_type == SHT_NOBITS) | |
1421 | { | |
1422 | /* This is a feature for objcopy --only-keep-debug: | |
1423 | When a section's type is changed to NOBITS, we preserve | |
1424 | the sh_link and sh_info fields so that they can be | |
1425 | matched up with the original. | |
1426 | ||
1427 | Note: Strictly speaking these assignments are wrong. | |
1428 | The sh_link and sh_info fields should point to the | |
1429 | relevent sections in the output BFD, which may not be in | |
1430 | the same location as they were in the input BFD. But | |
1431 | the whole point of this action is to preserve the | |
1432 | original values of the sh_link and sh_info fields, so | |
1433 | that they can be matched up with the section headers in | |
1434 | the original file. So strictly speaking we may be | |
1435 | creating an invalid ELF file, but it is only for a file | |
1436 | that just contains debug info and only for sections | |
1437 | without any contents. */ | |
1438 | if (oheader->sh_link == 0) | |
1439 | oheader->sh_link = iheader->sh_link; | |
1440 | if (oheader->sh_info == 0) | |
1441 | oheader->sh_info = iheader->sh_info; | |
1442 | return TRUE; | |
1443 | } | |
1444 | ||
1445 | /* Allow the target a chance to decide how these fields should be set. */ | |
1446 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1447 | && bed->elf_backend_copy_special_section_fields | |
1448 | (ibfd, obfd, iheader, oheader)) | |
1449 | return TRUE; | |
1450 | ||
1451 | /* We have an iheader which might match oheader, and which has non-zero | |
1452 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1453 | the section in the output bfd which corresponds to the linked section | |
1454 | in the input bfd. */ | |
1455 | if (iheader->sh_link != SHN_UNDEF) | |
1456 | { | |
4f3ca05b NC |
1457 | /* See PR 20931 for a reproducer. */ |
1458 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1459 | { | |
76cfced5 | 1460 | _bfd_error_handler |
4f3ca05b | 1461 | /* xgettext:c-format */ |
9793eb77 | 1462 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1463 | ibfd, iheader->sh_link, secnum); |
1464 | return FALSE; | |
1465 | } | |
1466 | ||
5522f910 NC |
1467 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1468 | if (sh_link != SHN_UNDEF) | |
1469 | { | |
1470 | oheader->sh_link = sh_link; | |
1471 | changed = TRUE; | |
1472 | } | |
1473 | else | |
1474 | /* FIXME: Should we install iheader->sh_link | |
1475 | if we could not find a match ? */ | |
76cfced5 | 1476 | _bfd_error_handler |
695344c0 | 1477 | /* xgettext:c-format */ |
9793eb77 | 1478 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1479 | } |
1480 | ||
1481 | if (iheader->sh_info) | |
1482 | { | |
1483 | /* The sh_info field can hold arbitrary information, but if the | |
1484 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1485 | section index. */ | |
1486 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1487 | { | |
1488 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1489 | iheader->sh_info); | |
1490 | if (sh_link != SHN_UNDEF) | |
1491 | oheader->sh_flags |= SHF_INFO_LINK; | |
1492 | } | |
1493 | else | |
1494 | /* No idea what it means - just copy it. */ | |
1495 | sh_link = iheader->sh_info; | |
1496 | ||
1497 | if (sh_link != SHN_UNDEF) | |
1498 | { | |
1499 | oheader->sh_info = sh_link; | |
1500 | changed = TRUE; | |
1501 | } | |
1502 | else | |
76cfced5 | 1503 | _bfd_error_handler |
695344c0 | 1504 | /* xgettext:c-format */ |
9793eb77 | 1505 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1506 | } |
1507 | ||
1508 | return changed; | |
1509 | } | |
07d6d2b8 | 1510 | |
0ac4564e L |
1511 | /* Copy the program header and other data from one object module to |
1512 | another. */ | |
252b5132 | 1513 | |
b34976b6 | 1514 | bfd_boolean |
217aa764 | 1515 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1516 | { |
5522f910 NC |
1517 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1518 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1519 | const struct elf_backend_data *bed; | |
84865015 NC |
1520 | unsigned int i; |
1521 | ||
2d502050 | 1522 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1523 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1524 | return TRUE; |
2d502050 | 1525 | |
57b828ef L |
1526 | if (!elf_flags_init (obfd)) |
1527 | { | |
1528 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1529 | elf_flags_init (obfd) = TRUE; | |
1530 | } | |
2d502050 | 1531 | |
0ac4564e | 1532 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1533 | |
1534 | /* Also copy the EI_OSABI field. */ | |
1535 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1536 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1537 | |
5522f910 NC |
1538 | /* If set, copy the EI_ABIVERSION field. */ |
1539 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1540 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1541 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1542 | |
104d59d1 JM |
1543 | /* Copy object attributes. */ |
1544 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1545 | |
84865015 NC |
1546 | if (iheaders == NULL || oheaders == NULL) |
1547 | return TRUE; | |
63b9bbb7 | 1548 | |
5522f910 NC |
1549 | bed = get_elf_backend_data (obfd); |
1550 | ||
1551 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1552 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1553 | { |
84865015 NC |
1554 | unsigned int j; |
1555 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1556 | |
5522f910 NC |
1557 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1558 | because of a special case need for generating separate debug info | |
1559 | files. See below for more details. */ | |
84865015 NC |
1560 | if (oheader == NULL |
1561 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1562 | && oheader->sh_type < SHT_LOOS)) |
1563 | continue; | |
1564 | ||
1565 | /* Ignore empty sections, and sections whose | |
1566 | fields have already been initialised. */ | |
1567 | if (oheader->sh_size == 0 | |
84865015 NC |
1568 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1569 | continue; | |
63b9bbb7 | 1570 | |
84865015 | 1571 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1572 | First we try for a direct mapping between the input and output sections. */ |
1573 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1574 | { | |
1575 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1576 | ||
1577 | if (iheader == NULL) | |
1578 | continue; | |
1579 | ||
1580 | if (oheader->bfd_section != NULL | |
1581 | && iheader->bfd_section != NULL | |
1582 | && iheader->bfd_section->output_section != NULL | |
1583 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1584 | { | |
1585 | /* We have found a connection from the input section to the | |
1586 | output section. Attempt to copy the header fields. If | |
1587 | this fails then do not try any further sections - there | |
1588 | should only be a one-to-one mapping between input and output. */ | |
1589 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1590 | j = elf_numsections (ibfd); | |
1591 | break; | |
1592 | } | |
1593 | } | |
1594 | ||
1595 | if (j < elf_numsections (ibfd)) | |
1596 | continue; | |
1597 | ||
1598 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1599 | Unfortunately we cannot compare names as the output string table |
1600 | is empty, so instead we check size, address and type. */ | |
1601 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1602 | { | |
5522f910 | 1603 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1604 | |
5522f910 NC |
1605 | if (iheader == NULL) |
1606 | continue; | |
1607 | ||
1608 | /* Try matching fields in the input section's header. | |
1609 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1610 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1611 | input type. */ | |
1612 | if ((oheader->sh_type == SHT_NOBITS | |
1613 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1614 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1615 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1616 | && iheader->sh_addralign == oheader->sh_addralign |
1617 | && iheader->sh_entsize == oheader->sh_entsize | |
1618 | && iheader->sh_size == oheader->sh_size | |
1619 | && iheader->sh_addr == oheader->sh_addr | |
1620 | && (iheader->sh_info != oheader->sh_info | |
1621 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1622 | { |
5522f910 NC |
1623 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1624 | break; | |
63b9bbb7 NC |
1625 | } |
1626 | } | |
5522f910 NC |
1627 | |
1628 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1629 | { | |
1630 | /* Final attempt. Call the backend copy function | |
1631 | with a NULL input section. */ | |
1632 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1633 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1634 | } | |
63b9bbb7 NC |
1635 | } |
1636 | ||
b34976b6 | 1637 | return TRUE; |
2d502050 L |
1638 | } |
1639 | ||
cedc298e L |
1640 | static const char * |
1641 | get_segment_type (unsigned int p_type) | |
1642 | { | |
1643 | const char *pt; | |
1644 | switch (p_type) | |
1645 | { | |
1646 | case PT_NULL: pt = "NULL"; break; | |
1647 | case PT_LOAD: pt = "LOAD"; break; | |
1648 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1649 | case PT_INTERP: pt = "INTERP"; break; | |
1650 | case PT_NOTE: pt = "NOTE"; break; | |
1651 | case PT_SHLIB: pt = "SHLIB"; break; | |
1652 | case PT_PHDR: pt = "PHDR"; break; | |
1653 | case PT_TLS: pt = "TLS"; break; | |
1654 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1655 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1656 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1657 | default: pt = NULL; break; | |
1658 | } | |
1659 | return pt; | |
1660 | } | |
1661 | ||
f0b79d91 L |
1662 | /* Print out the program headers. */ |
1663 | ||
b34976b6 | 1664 | bfd_boolean |
217aa764 | 1665 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1666 | { |
a50b1753 | 1667 | FILE *f = (FILE *) farg; |
252b5132 RH |
1668 | Elf_Internal_Phdr *p; |
1669 | asection *s; | |
1670 | bfd_byte *dynbuf = NULL; | |
1671 | ||
1672 | p = elf_tdata (abfd)->phdr; | |
1673 | if (p != NULL) | |
1674 | { | |
1675 | unsigned int i, c; | |
1676 | ||
1677 | fprintf (f, _("\nProgram Header:\n")); | |
1678 | c = elf_elfheader (abfd)->e_phnum; | |
1679 | for (i = 0; i < c; i++, p++) | |
1680 | { | |
cedc298e | 1681 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1682 | char buf[20]; |
1683 | ||
cedc298e | 1684 | if (pt == NULL) |
252b5132 | 1685 | { |
cedc298e L |
1686 | sprintf (buf, "0x%lx", p->p_type); |
1687 | pt = buf; | |
252b5132 | 1688 | } |
dc810e39 | 1689 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1690 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1691 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1692 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1693 | fprintf (f, " paddr 0x"); |
60b89a18 | 1694 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1695 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1696 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1697 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1698 | fprintf (f, " memsz 0x"); |
60b89a18 | 1699 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1700 | fprintf (f, " flags %c%c%c", |
1701 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1702 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1703 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1704 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1705 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1706 | fprintf (f, "\n"); |
1707 | } | |
1708 | } | |
1709 | ||
1710 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1711 | if (s != NULL) | |
1712 | { | |
cb33740c | 1713 | unsigned int elfsec; |
dc810e39 | 1714 | unsigned long shlink; |
252b5132 RH |
1715 | bfd_byte *extdyn, *extdynend; |
1716 | size_t extdynsize; | |
217aa764 | 1717 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1718 | |
1719 | fprintf (f, _("\nDynamic Section:\n")); | |
1720 | ||
eea6121a | 1721 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1722 | goto error_return; |
1723 | ||
1724 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1725 | if (elfsec == SHN_BAD) |
252b5132 | 1726 | goto error_return; |
dc810e39 | 1727 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1728 | |
1729 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1730 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1731 | ||
1732 | extdyn = dynbuf; | |
06614111 NC |
1733 | /* PR 17512: file: 6f427532. */ |
1734 | if (s->size < extdynsize) | |
1735 | goto error_return; | |
eea6121a | 1736 | extdynend = extdyn + s->size; |
1036838a | 1737 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1738 | Fix range check. */ |
1036838a | 1739 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1740 | { |
1741 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1742 | const char *name = ""; |
252b5132 | 1743 | char ab[20]; |
b34976b6 | 1744 | bfd_boolean stringp; |
ad9563d6 | 1745 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1746 | |
217aa764 | 1747 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1748 | |
1749 | if (dyn.d_tag == DT_NULL) | |
1750 | break; | |
1751 | ||
b34976b6 | 1752 | stringp = FALSE; |
252b5132 RH |
1753 | switch (dyn.d_tag) |
1754 | { | |
1755 | default: | |
ad9563d6 CM |
1756 | if (bed->elf_backend_get_target_dtag) |
1757 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1758 | ||
1759 | if (!strcmp (name, "")) | |
1760 | { | |
cd9af601 | 1761 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1762 | name = ab; |
1763 | } | |
252b5132 RH |
1764 | break; |
1765 | ||
b34976b6 | 1766 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1767 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1768 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1769 | case DT_HASH: name = "HASH"; break; | |
1770 | case DT_STRTAB: name = "STRTAB"; break; | |
1771 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1772 | case DT_RELA: name = "RELA"; break; | |
1773 | case DT_RELASZ: name = "RELASZ"; break; | |
1774 | case DT_RELAENT: name = "RELAENT"; break; | |
1775 | case DT_STRSZ: name = "STRSZ"; break; | |
1776 | case DT_SYMENT: name = "SYMENT"; break; | |
1777 | case DT_INIT: name = "INIT"; break; | |
1778 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1779 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1780 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1781 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1782 | case DT_REL: name = "REL"; break; | |
1783 | case DT_RELSZ: name = "RELSZ"; break; | |
1784 | case DT_RELENT: name = "RELENT"; break; | |
1785 | case DT_PLTREL: name = "PLTREL"; break; | |
1786 | case DT_DEBUG: name = "DEBUG"; break; | |
1787 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1788 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1789 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1790 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1791 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1792 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1793 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1794 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1795 | case DT_FLAGS: name = "FLAGS"; break; |
1796 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1797 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1798 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1799 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1800 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1801 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1802 | case DT_FEATURE: name = "FEATURE"; break; | |
1803 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1804 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1805 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1806 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1807 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1808 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1809 | case DT_PLTPAD: name = "PLTPAD"; break; |
1810 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1811 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1812 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1813 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1814 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1815 | case DT_VERSYM: name = "VERSYM"; break; |
1816 | case DT_VERDEF: name = "VERDEF"; break; | |
1817 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1818 | case DT_VERNEED: name = "VERNEED"; break; | |
1819 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1820 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1821 | case DT_USED: name = "USED"; break; |
b34976b6 | 1822 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1823 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1824 | } |
1825 | ||
ad9563d6 | 1826 | fprintf (f, " %-20s ", name); |
252b5132 | 1827 | if (! stringp) |
a1f3c56e AN |
1828 | { |
1829 | fprintf (f, "0x"); | |
1830 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1831 | } | |
252b5132 RH |
1832 | else |
1833 | { | |
1834 | const char *string; | |
dc810e39 | 1835 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1836 | |
dc810e39 | 1837 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1838 | if (string == NULL) |
1839 | goto error_return; | |
1840 | fprintf (f, "%s", string); | |
1841 | } | |
1842 | fprintf (f, "\n"); | |
1843 | } | |
1844 | ||
1845 | free (dynbuf); | |
1846 | dynbuf = NULL; | |
1847 | } | |
1848 | ||
1849 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1850 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1851 | { | |
fc0e6df6 | 1852 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1853 | return FALSE; |
252b5132 RH |
1854 | } |
1855 | ||
1856 | if (elf_dynverdef (abfd) != 0) | |
1857 | { | |
1858 | Elf_Internal_Verdef *t; | |
1859 | ||
1860 | fprintf (f, _("\nVersion definitions:\n")); | |
1861 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1862 | { | |
1863 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1864 | t->vd_flags, t->vd_hash, |
1865 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1866 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1867 | { |
1868 | Elf_Internal_Verdaux *a; | |
1869 | ||
1870 | fprintf (f, "\t"); | |
1871 | for (a = t->vd_auxptr->vda_nextptr; | |
1872 | a != NULL; | |
1873 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1874 | fprintf (f, "%s ", |
1875 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1876 | fprintf (f, "\n"); |
1877 | } | |
1878 | } | |
1879 | } | |
1880 | ||
1881 | if (elf_dynverref (abfd) != 0) | |
1882 | { | |
1883 | Elf_Internal_Verneed *t; | |
1884 | ||
1885 | fprintf (f, _("\nVersion References:\n")); | |
1886 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1887 | { | |
1888 | Elf_Internal_Vernaux *a; | |
1889 | ||
d0fb9a8d JJ |
1890 | fprintf (f, _(" required from %s:\n"), |
1891 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1892 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1893 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1894 | a->vna_flags, a->vna_other, |
1895 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1896 | } |
1897 | } | |
1898 | ||
b34976b6 | 1899 | return TRUE; |
252b5132 RH |
1900 | |
1901 | error_return: | |
1902 | if (dynbuf != NULL) | |
1903 | free (dynbuf); | |
b34976b6 | 1904 | return FALSE; |
252b5132 RH |
1905 | } |
1906 | ||
bb4d2ac2 L |
1907 | /* Get version string. */ |
1908 | ||
1909 | const char * | |
60bb06bc L |
1910 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1911 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1912 | { |
1913 | const char *version_string = NULL; | |
1914 | if (elf_dynversym (abfd) != 0 | |
1915 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1916 | { | |
1917 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1918 | ||
1919 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1920 | vernum &= VERSYM_VERSION; | |
1921 | ||
1922 | if (vernum == 0) | |
1923 | version_string = ""; | |
1f6f5dba L |
1924 | else if (vernum == 1 |
1925 | && (vernum > elf_tdata (abfd)->cverdefs | |
1926 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1927 | == VER_FLG_BASE))) | |
bb4d2ac2 L |
1928 | version_string = "Base"; |
1929 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1930 | version_string = | |
1931 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1932 | else | |
1933 | { | |
1934 | Elf_Internal_Verneed *t; | |
1935 | ||
7a815dd5 | 1936 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1937 | for (t = elf_tdata (abfd)->verref; |
1938 | t != NULL; | |
1939 | t = t->vn_nextref) | |
1940 | { | |
1941 | Elf_Internal_Vernaux *a; | |
1942 | ||
1943 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1944 | { | |
1945 | if (a->vna_other == vernum) | |
1946 | { | |
1947 | version_string = a->vna_nodename; | |
1948 | break; | |
1949 | } | |
1950 | } | |
1951 | } | |
1952 | } | |
1953 | } | |
1954 | return version_string; | |
1955 | } | |
1956 | ||
252b5132 RH |
1957 | /* Display ELF-specific fields of a symbol. */ |
1958 | ||
1959 | void | |
217aa764 AM |
1960 | bfd_elf_print_symbol (bfd *abfd, |
1961 | void *filep, | |
1962 | asymbol *symbol, | |
1963 | bfd_print_symbol_type how) | |
252b5132 | 1964 | { |
a50b1753 | 1965 | FILE *file = (FILE *) filep; |
252b5132 RH |
1966 | switch (how) |
1967 | { | |
1968 | case bfd_print_symbol_name: | |
1969 | fprintf (file, "%s", symbol->name); | |
1970 | break; | |
1971 | case bfd_print_symbol_more: | |
1972 | fprintf (file, "elf "); | |
60b89a18 | 1973 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1974 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1975 | break; |
1976 | case bfd_print_symbol_all: | |
1977 | { | |
4e8a9624 AM |
1978 | const char *section_name; |
1979 | const char *name = NULL; | |
9c5bfbb7 | 1980 | const struct elf_backend_data *bed; |
7a13edea | 1981 | unsigned char st_other; |
dbb410c3 | 1982 | bfd_vma val; |
bb4d2ac2 L |
1983 | const char *version_string; |
1984 | bfd_boolean hidden; | |
c044fabd | 1985 | |
252b5132 | 1986 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1987 | |
1988 | bed = get_elf_backend_data (abfd); | |
1989 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1990 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1991 | |
1992 | if (name == NULL) | |
1993 | { | |
7ee38065 | 1994 | name = symbol->name; |
217aa764 | 1995 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1996 | } |
1997 | ||
252b5132 RH |
1998 | fprintf (file, " %s\t", section_name); |
1999 | /* Print the "other" value for a symbol. For common symbols, | |
2000 | we've already printed the size; now print the alignment. | |
2001 | For other symbols, we have no specified alignment, and | |
2002 | we've printed the address; now print the size. */ | |
dcf6c779 | 2003 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
2004 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
2005 | else | |
2006 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
2007 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
2008 | |
2009 | /* If we have version information, print it. */ | |
60bb06bc L |
2010 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2011 | symbol, | |
2012 | &hidden); | |
bb4d2ac2 | 2013 | if (version_string) |
252b5132 | 2014 | { |
bb4d2ac2 | 2015 | if (!hidden) |
252b5132 RH |
2016 | fprintf (file, " %-11s", version_string); |
2017 | else | |
2018 | { | |
2019 | int i; | |
2020 | ||
2021 | fprintf (file, " (%s)", version_string); | |
2022 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2023 | putc (' ', file); | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2028 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2029 | |
7a13edea NC |
2030 | switch (st_other) |
2031 | { | |
2032 | case 0: break; | |
2033 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2034 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2035 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2036 | default: | |
2037 | /* Some other non-defined flags are also present, so print | |
2038 | everything hex. */ | |
2039 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2040 | } | |
252b5132 | 2041 | |
587ff49e | 2042 | fprintf (file, " %s", name); |
252b5132 RH |
2043 | } |
2044 | break; | |
2045 | } | |
2046 | } | |
252b5132 RH |
2047 | \f |
2048 | /* ELF .o/exec file reading */ | |
2049 | ||
c044fabd | 2050 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2051 | |
b34976b6 | 2052 | bfd_boolean |
217aa764 | 2053 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2054 | { |
4fbb74a6 AM |
2055 | Elf_Internal_Shdr *hdr; |
2056 | Elf_Internal_Ehdr *ehdr; | |
2057 | const struct elf_backend_data *bed; | |
90937f86 | 2058 | const char *name; |
bf67003b NC |
2059 | bfd_boolean ret = TRUE; |
2060 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2061 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2062 | static unsigned int nesting = 0; |
252b5132 | 2063 | |
4fbb74a6 AM |
2064 | if (shindex >= elf_numsections (abfd)) |
2065 | return FALSE; | |
2066 | ||
bf67003b NC |
2067 | if (++ nesting > 3) |
2068 | { | |
2069 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2070 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2071 | loop. Detect this here, by refusing to load a section that we are |
2072 | already in the process of loading. We only trigger this test if | |
2073 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2074 | can expect to recurse at least once. |
2075 | ||
2076 | FIXME: It would be better if this array was attached to the bfd, | |
2077 | rather than being held in a static pointer. */ | |
2078 | ||
2079 | if (sections_being_created_abfd != abfd) | |
2080 | sections_being_created = NULL; | |
bf67003b NC |
2081 | if (sections_being_created == NULL) |
2082 | { | |
bf67003b | 2083 | sections_being_created = (bfd_boolean *) |
7a6e0d89 | 2084 | bfd_zalloc2 (abfd, elf_numsections (abfd), sizeof (bfd_boolean)); |
5a4b0ccc | 2085 | sections_being_created_abfd = abfd; |
bf67003b NC |
2086 | } |
2087 | if (sections_being_created [shindex]) | |
2088 | { | |
4eca0228 | 2089 | _bfd_error_handler |
871b3ab2 | 2090 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2091 | return FALSE; |
2092 | } | |
2093 | sections_being_created [shindex] = TRUE; | |
2094 | } | |
2095 | ||
4fbb74a6 AM |
2096 | hdr = elf_elfsections (abfd)[shindex]; |
2097 | ehdr = elf_elfheader (abfd); | |
2098 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2099 | hdr->sh_name); |
933d961a | 2100 | if (name == NULL) |
bf67003b | 2101 | goto fail; |
252b5132 | 2102 | |
4fbb74a6 | 2103 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2104 | switch (hdr->sh_type) |
2105 | { | |
2106 | case SHT_NULL: | |
2107 | /* Inactive section. Throw it away. */ | |
bf67003b | 2108 | goto success; |
252b5132 | 2109 | |
bf67003b NC |
2110 | case SHT_PROGBITS: /* Normal section with contents. */ |
2111 | case SHT_NOBITS: /* .bss section. */ | |
2112 | case SHT_HASH: /* .hash section. */ | |
2113 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2114 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2115 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2116 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2117 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2118 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2119 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2120 | goto success; | |
252b5132 | 2121 | |
797fc050 | 2122 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2123 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2124 | goto fail; |
2125 | ||
cfcac11d NC |
2126 | if (hdr->sh_link > elf_numsections (abfd)) |
2127 | { | |
caa83f8b | 2128 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2129 | field set to SHN_BEFORE or SHN_AFTER. */ |
2130 | switch (bfd_get_arch (abfd)) | |
2131 | { | |
caa83f8b | 2132 | case bfd_arch_i386: |
cfcac11d NC |
2133 | case bfd_arch_sparc: |
2134 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2135 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2136 | break; | |
2137 | /* Otherwise fall through. */ | |
2138 | default: | |
bf67003b | 2139 | goto fail; |
cfcac11d NC |
2140 | } |
2141 | } | |
2142 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2143 | goto fail; |
cfcac11d | 2144 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2145 | { |
2146 | Elf_Internal_Shdr *dynsymhdr; | |
2147 | ||
2148 | /* The shared libraries distributed with hpux11 have a bogus | |
2149 | sh_link field for the ".dynamic" section. Find the | |
2150 | string table for the ".dynsym" section instead. */ | |
2151 | if (elf_dynsymtab (abfd) != 0) | |
2152 | { | |
2153 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2154 | hdr->sh_link = dynsymhdr->sh_link; | |
2155 | } | |
2156 | else | |
2157 | { | |
2158 | unsigned int i, num_sec; | |
2159 | ||
2160 | num_sec = elf_numsections (abfd); | |
2161 | for (i = 1; i < num_sec; i++) | |
2162 | { | |
2163 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2164 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2165 | { | |
2166 | hdr->sh_link = dynsymhdr->sh_link; | |
2167 | break; | |
2168 | } | |
2169 | } | |
2170 | } | |
2171 | } | |
bf67003b | 2172 | goto success; |
797fc050 | 2173 | |
bf67003b | 2174 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2175 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2176 | goto success; |
252b5132 | 2177 | |
a50b2160 | 2178 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2179 | goto fail; |
2180 | ||
3337c1e5 | 2181 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2182 | { |
2183 | if (hdr->sh_size != 0) | |
bf67003b | 2184 | goto fail; |
eee3b786 AM |
2185 | /* Some assemblers erroneously set sh_info to one with a |
2186 | zero sh_size. ld sees this as a global symbol count | |
2187 | of (unsigned) -1. Fix it here. */ | |
2188 | hdr->sh_info = 0; | |
bf67003b | 2189 | goto success; |
eee3b786 | 2190 | } |
bf67003b | 2191 | |
16ad13ec NC |
2192 | /* PR 18854: A binary might contain more than one symbol table. |
2193 | Unusual, but possible. Warn, but continue. */ | |
2194 | if (elf_onesymtab (abfd) != 0) | |
2195 | { | |
4eca0228 | 2196 | _bfd_error_handler |
695344c0 | 2197 | /* xgettext:c-format */ |
871b3ab2 | 2198 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2199 | " - ignoring the table in section %u"), |
16ad13ec NC |
2200 | abfd, shindex); |
2201 | goto success; | |
2202 | } | |
252b5132 | 2203 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2204 | elf_symtab_hdr (abfd) = *hdr; |
2205 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2206 | abfd->flags |= HAS_SYMS; |
2207 | ||
2208 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2209 | SHF_ALLOC is set, and this is a shared object, then we also |
2210 | treat this section as a BFD section. We can not base the | |
2211 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2212 | set in a relocatable object file, which would confuse the | |
2213 | linker. */ | |
252b5132 RH |
2214 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2215 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2216 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2217 | shindex)) | |
bf67003b | 2218 | goto fail; |
252b5132 | 2219 | |
1b3a8575 AM |
2220 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2221 | can't read symbols without that section loaded as well. It | |
2222 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2223 | { |
2224 | elf_section_list * entry; | |
2225 | unsigned int i, num_sec; | |
1b3a8575 | 2226 | |
6a40cf0c NC |
2227 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2228 | if (entry->hdr.sh_link == shindex) | |
2229 | goto success; | |
2230 | ||
2231 | num_sec = elf_numsections (abfd); | |
2232 | for (i = shindex + 1; i < num_sec; i++) | |
2233 | { | |
2234 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2235 | ||
2236 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2237 | && hdr2->sh_link == shindex) | |
2238 | break; | |
2239 | } | |
2240 | ||
2241 | if (i == num_sec) | |
2242 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2243 | { |
2244 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2245 | |
1b3a8575 AM |
2246 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2247 | && hdr2->sh_link == shindex) | |
2248 | break; | |
2249 | } | |
6a40cf0c NC |
2250 | |
2251 | if (i != shindex) | |
2252 | ret = bfd_section_from_shdr (abfd, i); | |
2253 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2254 | goto success; | |
2255 | } | |
252b5132 | 2256 | |
bf67003b | 2257 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2258 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2259 | goto success; |
252b5132 | 2260 | |
a50b2160 | 2261 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2262 | goto fail; |
2263 | ||
eee3b786 AM |
2264 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2265 | { | |
2266 | if (hdr->sh_size != 0) | |
bf67003b NC |
2267 | goto fail; |
2268 | ||
eee3b786 AM |
2269 | /* Some linkers erroneously set sh_info to one with a |
2270 | zero sh_size. ld sees this as a global symbol count | |
2271 | of (unsigned) -1. Fix it here. */ | |
2272 | hdr->sh_info = 0; | |
bf67003b | 2273 | goto success; |
eee3b786 | 2274 | } |
bf67003b | 2275 | |
16ad13ec NC |
2276 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2277 | Unusual, but possible. Warn, but continue. */ | |
2278 | if (elf_dynsymtab (abfd) != 0) | |
2279 | { | |
4eca0228 | 2280 | _bfd_error_handler |
695344c0 | 2281 | /* xgettext:c-format */ |
871b3ab2 | 2282 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2283 | " - ignoring the table in section %u"), |
16ad13ec NC |
2284 | abfd, shindex); |
2285 | goto success; | |
2286 | } | |
252b5132 RH |
2287 | elf_dynsymtab (abfd) = shindex; |
2288 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2289 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2290 | abfd->flags |= HAS_SYMS; | |
2291 | ||
2292 | /* Besides being a symbol table, we also treat this as a regular | |
2293 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2294 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2295 | goto success; | |
252b5132 | 2296 | |
bf67003b | 2297 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2298 | { |
2299 | elf_section_list * entry; | |
9ad5cbcf | 2300 | |
6a40cf0c NC |
2301 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2302 | if (entry->ndx == shindex) | |
2303 | goto success; | |
07d6d2b8 | 2304 | |
7a6e0d89 | 2305 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2306 | if (entry == NULL) |
2307 | goto fail; | |
2308 | entry->ndx = shindex; | |
2309 | entry->hdr = * hdr; | |
2310 | entry->next = elf_symtab_shndx_list (abfd); | |
2311 | elf_symtab_shndx_list (abfd) = entry; | |
2312 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2313 | goto success; | |
2314 | } | |
9ad5cbcf | 2315 | |
bf67003b | 2316 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2317 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2318 | goto success; |
2319 | ||
252b5132 RH |
2320 | if (ehdr->e_shstrndx == shindex) |
2321 | { | |
2322 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2323 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2324 | goto success; |
252b5132 | 2325 | } |
bf67003b | 2326 | |
1b3a8575 AM |
2327 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2328 | { | |
2329 | symtab_strtab: | |
2330 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2331 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2332 | goto success; |
1b3a8575 | 2333 | } |
bf67003b | 2334 | |
1b3a8575 AM |
2335 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2336 | { | |
2337 | dynsymtab_strtab: | |
2338 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2339 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2340 | elf_elfsections (abfd)[shindex] = hdr; | |
2341 | /* We also treat this as a regular section, so that objcopy | |
2342 | can handle it. */ | |
bf67003b NC |
2343 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2344 | shindex); | |
2345 | goto success; | |
1b3a8575 | 2346 | } |
252b5132 | 2347 | |
1b3a8575 AM |
2348 | /* If the string table isn't one of the above, then treat it as a |
2349 | regular section. We need to scan all the headers to be sure, | |
2350 | just in case this strtab section appeared before the above. */ | |
2351 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2352 | { | |
2353 | unsigned int i, num_sec; | |
252b5132 | 2354 | |
1b3a8575 AM |
2355 | num_sec = elf_numsections (abfd); |
2356 | for (i = 1; i < num_sec; i++) | |
2357 | { | |
2358 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2359 | if (hdr2->sh_link == shindex) | |
2360 | { | |
933d961a JJ |
2361 | /* Prevent endless recursion on broken objects. */ |
2362 | if (i == shindex) | |
bf67003b | 2363 | goto fail; |
1b3a8575 | 2364 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2365 | goto fail; |
1b3a8575 AM |
2366 | if (elf_onesymtab (abfd) == i) |
2367 | goto symtab_strtab; | |
2368 | if (elf_dynsymtab (abfd) == i) | |
2369 | goto dynsymtab_strtab; | |
2370 | } | |
2371 | } | |
2372 | } | |
bf67003b NC |
2373 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2374 | goto success; | |
252b5132 RH |
2375 | |
2376 | case SHT_REL: | |
2377 | case SHT_RELA: | |
2378 | /* *These* do a lot of work -- but build no sections! */ | |
2379 | { | |
2380 | asection *target_sect; | |
d4730f92 | 2381 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2382 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2383 | struct bfd_elf_section_data *esdt; |
252b5132 | 2384 | |
aa2ca951 JJ |
2385 | if (hdr->sh_entsize |
2386 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2387 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2388 | goto fail; |
a50b2160 | 2389 | |
03ae5f59 | 2390 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2391 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2392 | { |
4eca0228 | 2393 | _bfd_error_handler |
695344c0 | 2394 | /* xgettext:c-format */ |
871b3ab2 | 2395 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2396 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2397 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2398 | shindex); | |
2399 | goto success; | |
03ae5f59 ILT |
2400 | } |
2401 | ||
252b5132 RH |
2402 | /* For some incomprehensible reason Oracle distributes |
2403 | libraries for Solaris in which some of the objects have | |
2404 | bogus sh_link fields. It would be nice if we could just | |
2405 | reject them, but, unfortunately, some people need to use | |
2406 | them. We scan through the section headers; if we find only | |
2407 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2408 | to it. I hope this doesn't break anything. |
2409 | ||
2410 | Don't do it on executable nor shared library. */ | |
2411 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2412 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2413 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2414 | { | |
9ad5cbcf | 2415 | unsigned int scan; |
252b5132 RH |
2416 | int found; |
2417 | ||
2418 | found = 0; | |
9ad5cbcf | 2419 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2420 | { |
2421 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2422 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2423 | { | |
2424 | if (found != 0) | |
2425 | { | |
2426 | found = 0; | |
2427 | break; | |
2428 | } | |
2429 | found = scan; | |
2430 | } | |
2431 | } | |
2432 | if (found != 0) | |
2433 | hdr->sh_link = found; | |
2434 | } | |
2435 | ||
2436 | /* Get the symbol table. */ | |
1b3a8575 AM |
2437 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2438 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2439 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2440 | goto fail; |
252b5132 | 2441 | |
a4bcd733 AM |
2442 | /* If this is an alloc section in an executable or shared |
2443 | library, or the reloc section does not use the main symbol | |
2444 | table we don't treat it as a reloc section. BFD can't | |
2445 | adequately represent such a section, so at least for now, | |
2446 | we don't try. We just present it as a normal section. We | |
2447 | also can't use it as a reloc section if it points to the | |
2448 | null section, an invalid section, another reloc section, or | |
2449 | its sh_link points to the null section. */ | |
2450 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2451 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2452 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2453 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2454 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2455 | || hdr->sh_info >= num_sec |
2456 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2457 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2458 | { |
2459 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2460 | shindex); | |
2461 | goto success; | |
2462 | } | |
252b5132 RH |
2463 | |
2464 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2465 | goto fail; |
2466 | ||
252b5132 RH |
2467 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2468 | if (target_sect == NULL) | |
bf67003b | 2469 | goto fail; |
252b5132 | 2470 | |
d4730f92 BS |
2471 | esdt = elf_section_data (target_sect); |
2472 | if (hdr->sh_type == SHT_RELA) | |
2473 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2474 | else |
d4730f92 BS |
2475 | p_hdr = &esdt->rel.hdr; |
2476 | ||
a7ba3896 NC |
2477 | /* PR 17512: file: 0b4f81b7. |
2478 | Also see PR 24456, for a file which deliberately has two reloc | |
2479 | sections. */ | |
06614111 | 2480 | if (*p_hdr != NULL) |
a7ba3896 NC |
2481 | { |
2482 | _bfd_error_handler | |
2483 | /* xgettext:c-format */ | |
2484 | (_("%pB: warning: multiple relocation sections for section %pA \ | |
2485 | found - ignoring all but the first"), | |
2486 | abfd, target_sect); | |
2487 | goto success; | |
2488 | } | |
ef53be89 | 2489 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2490 | if (hdr2 == NULL) |
bf67003b | 2491 | goto fail; |
252b5132 | 2492 | *hdr2 = *hdr; |
d4730f92 | 2493 | *p_hdr = hdr2; |
252b5132 | 2494 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2495 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2496 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2497 | target_sect->flags |= SEC_RELOC; |
2498 | target_sect->relocation = NULL; | |
2499 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2500 | /* In the section to which the relocations apply, mark whether |
2501 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2502 | if (hdr->sh_size != 0) |
d4730f92 BS |
2503 | { |
2504 | if (hdr->sh_type == SHT_RELA) | |
2505 | target_sect->use_rela_p = 1; | |
2506 | } | |
252b5132 | 2507 | abfd->flags |= HAS_RELOC; |
bf67003b | 2508 | goto success; |
252b5132 | 2509 | } |
252b5132 RH |
2510 | |
2511 | case SHT_GNU_verdef: | |
2512 | elf_dynverdef (abfd) = shindex; | |
2513 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2514 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2515 | goto success; | |
252b5132 RH |
2516 | |
2517 | case SHT_GNU_versym: | |
a50b2160 | 2518 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2519 | goto fail; |
2520 | ||
252b5132 RH |
2521 | elf_dynversym (abfd) = shindex; |
2522 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2523 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2524 | goto success; | |
252b5132 RH |
2525 | |
2526 | case SHT_GNU_verneed: | |
2527 | elf_dynverref (abfd) = shindex; | |
2528 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2529 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2530 | goto success; | |
252b5132 RH |
2531 | |
2532 | case SHT_SHLIB: | |
bf67003b | 2533 | goto success; |
252b5132 | 2534 | |
dbb410c3 | 2535 | case SHT_GROUP: |
44534af3 | 2536 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2537 | goto fail; |
2538 | ||
6dc132d9 | 2539 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2540 | goto fail; |
2541 | ||
bf67003b | 2542 | goto success; |
dbb410c3 | 2543 | |
252b5132 | 2544 | default: |
104d59d1 JM |
2545 | /* Possibly an attributes section. */ |
2546 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2547 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2548 | { | |
2549 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2550 | goto fail; |
104d59d1 | 2551 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2552 | goto success; |
104d59d1 JM |
2553 | } |
2554 | ||
252b5132 | 2555 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2556 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2557 | goto success; |
3eb70a79 L |
2558 | |
2559 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2560 | { | |
2561 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2562 | /* FIXME: How to properly handle allocated section reserved | |
2563 | for applications? */ | |
4eca0228 | 2564 | _bfd_error_handler |
695344c0 | 2565 | /* xgettext:c-format */ |
871b3ab2 | 2566 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2567 | abfd, hdr->sh_type, name); |
3eb70a79 | 2568 | else |
bf67003b NC |
2569 | { |
2570 | /* Allow sections reserved for applications. */ | |
2571 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2572 | shindex); | |
2573 | goto success; | |
2574 | } | |
3eb70a79 L |
2575 | } |
2576 | else if (hdr->sh_type >= SHT_LOPROC | |
2577 | && hdr->sh_type <= SHT_HIPROC) | |
2578 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2579 | _bfd_error_handler |
695344c0 | 2580 | /* xgettext:c-format */ |
871b3ab2 | 2581 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2582 | abfd, hdr->sh_type, name); |
3eb70a79 | 2583 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2584 | { |
2585 | /* Unrecognised OS-specific sections. */ | |
2586 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2587 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2588 | required to correctly process the section and the file should |
ff15b240 | 2589 | be rejected with an error message. */ |
4eca0228 | 2590 | _bfd_error_handler |
695344c0 | 2591 | /* xgettext:c-format */ |
871b3ab2 | 2592 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2593 | abfd, hdr->sh_type, name); |
ff15b240 | 2594 | else |
bf67003b NC |
2595 | { |
2596 | /* Otherwise it should be processed. */ | |
2597 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2598 | goto success; | |
2599 | } | |
ff15b240 | 2600 | } |
3eb70a79 L |
2601 | else |
2602 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2603 | _bfd_error_handler |
695344c0 | 2604 | /* xgettext:c-format */ |
871b3ab2 | 2605 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2606 | abfd, hdr->sh_type, name); |
3eb70a79 | 2607 | |
bf67003b | 2608 | goto fail; |
252b5132 RH |
2609 | } |
2610 | ||
bf67003b NC |
2611 | fail: |
2612 | ret = FALSE; | |
2613 | success: | |
e5b470e2 | 2614 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2615 | sections_being_created [shindex] = FALSE; |
2616 | if (-- nesting == 0) | |
5a4b0ccc NC |
2617 | { |
2618 | sections_being_created = NULL; | |
2619 | sections_being_created_abfd = abfd; | |
2620 | } | |
bf67003b | 2621 | return ret; |
252b5132 RH |
2622 | } |
2623 | ||
87d72d41 | 2624 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2625 | |
87d72d41 AM |
2626 | Elf_Internal_Sym * |
2627 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2628 | bfd *abfd, | |
2629 | unsigned long r_symndx) | |
ec338859 | 2630 | { |
ec338859 AM |
2631 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2632 | ||
a5d1b3b5 AM |
2633 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2634 | { | |
2635 | Elf_Internal_Shdr *symtab_hdr; | |
2636 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2637 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2638 | |
a5d1b3b5 AM |
2639 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2640 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2641 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2642 | return NULL; |
9ad5cbcf | 2643 | |
a5d1b3b5 AM |
2644 | if (cache->abfd != abfd) |
2645 | { | |
2646 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2647 | cache->abfd = abfd; | |
2648 | } | |
2649 | cache->indx[ent] = r_symndx; | |
ec338859 | 2650 | } |
a5d1b3b5 | 2651 | |
87d72d41 | 2652 | return &cache->sym[ent]; |
ec338859 AM |
2653 | } |
2654 | ||
252b5132 RH |
2655 | /* Given an ELF section number, retrieve the corresponding BFD |
2656 | section. */ | |
2657 | ||
2658 | asection * | |
91d6fa6a | 2659 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2660 | { |
91d6fa6a | 2661 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2662 | return NULL; |
91d6fa6a | 2663 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2664 | } |
2665 | ||
b35d266b | 2666 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2667 | { |
0112cd26 | 2668 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2669 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2670 | }; |
2671 | ||
b35d266b | 2672 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2673 | { |
0112cd26 | 2674 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2675 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2676 | }; |
2677 | ||
b35d266b | 2678 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2679 | { |
07d6d2b8 AM |
2680 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2681 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2682 | /* There are more DWARF sections than these, but they needn't be added here |
2683 | unless you have to cope with broken compilers that don't emit section | |
2684 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2685 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2686 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2687 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2688 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2689 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2690 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2691 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2692 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2693 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2694 | }; |
2695 | ||
b35d266b | 2696 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2697 | { |
07d6d2b8 | 2698 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2699 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2700 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2701 | }; |
2702 | ||
b35d266b | 2703 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2704 | { |
0112cd26 | 2705 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2706 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2707 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2708 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2709 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2710 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2711 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2712 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2713 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2714 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2715 | }; |
2716 | ||
b35d266b | 2717 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2718 | { |
07d6d2b8 AM |
2719 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2720 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2721 | }; |
2722 | ||
b35d266b | 2723 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2724 | { |
07d6d2b8 | 2725 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2726 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2727 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2728 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2729 | }; |
2730 | ||
b35d266b | 2731 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2732 | { |
0112cd26 | 2733 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2734 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2735 | }; |
2736 | ||
b35d266b | 2737 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2738 | { |
0112cd26 | 2739 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2740 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2741 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2742 | }; |
2743 | ||
b35d266b | 2744 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2745 | { |
6f9dbcd4 | 2746 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2747 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2748 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2749 | }; |
2750 | ||
b35d266b | 2751 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2752 | { |
0112cd26 NC |
2753 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2754 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2755 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2756 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2757 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2758 | }; |
2759 | ||
b35d266b | 2760 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2761 | { |
0112cd26 NC |
2762 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2763 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2764 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2765 | /* See struct bfd_elf_special_section declaration for the semantics of |
2766 | this special case where .prefix_length != strlen (.prefix). */ | |
2767 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2768 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2769 | }; |
2770 | ||
b35d266b | 2771 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2772 | { |
07d6d2b8 AM |
2773 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2774 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2775 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2776 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2777 | }; |
2778 | ||
1b315056 CS |
2779 | static const struct bfd_elf_special_section special_sections_z[] = |
2780 | { | |
07d6d2b8 AM |
2781 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2782 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2783 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2784 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2785 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2786 | }; |
2787 | ||
e4c93b56 | 2788 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2789 | { |
7f4d3958 | 2790 | special_sections_b, /* 'b' */ |
98ece1b3 | 2791 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2792 | special_sections_d, /* 'd' */ |
2793 | NULL, /* 'e' */ | |
2794 | special_sections_f, /* 'f' */ | |
2795 | special_sections_g, /* 'g' */ | |
2796 | special_sections_h, /* 'h' */ | |
2797 | special_sections_i, /* 'i' */ | |
2798 | NULL, /* 'j' */ | |
2799 | NULL, /* 'k' */ | |
2800 | special_sections_l, /* 'l' */ | |
2801 | NULL, /* 'm' */ | |
2802 | special_sections_n, /* 'n' */ | |
2803 | NULL, /* 'o' */ | |
2804 | special_sections_p, /* 'p' */ | |
2805 | NULL, /* 'q' */ | |
2806 | special_sections_r, /* 'r' */ | |
2807 | special_sections_s, /* 's' */ | |
2808 | special_sections_t, /* 't' */ | |
1b315056 CS |
2809 | NULL, /* 'u' */ |
2810 | NULL, /* 'v' */ | |
2811 | NULL, /* 'w' */ | |
2812 | NULL, /* 'x' */ | |
2813 | NULL, /* 'y' */ | |
2814 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2815 | }; |
2816 | ||
551b43fd AM |
2817 | const struct bfd_elf_special_section * |
2818 | _bfd_elf_get_special_section (const char *name, | |
2819 | const struct bfd_elf_special_section *spec, | |
2820 | unsigned int rela) | |
2f89ff8d L |
2821 | { |
2822 | int i; | |
7f4d3958 | 2823 | int len; |
7f4d3958 | 2824 | |
551b43fd | 2825 | len = strlen (name); |
7f4d3958 | 2826 | |
551b43fd | 2827 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2828 | { |
2829 | int suffix_len; | |
551b43fd | 2830 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2831 | |
2832 | if (len < prefix_len) | |
2833 | continue; | |
551b43fd | 2834 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2835 | continue; |
2836 | ||
551b43fd | 2837 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2838 | if (suffix_len <= 0) |
2839 | { | |
2840 | if (name[prefix_len] != 0) | |
2841 | { | |
2842 | if (suffix_len == 0) | |
2843 | continue; | |
2844 | if (name[prefix_len] != '.' | |
2845 | && (suffix_len == -2 | |
551b43fd | 2846 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2847 | continue; |
2848 | } | |
2849 | } | |
2850 | else | |
2851 | { | |
2852 | if (len < prefix_len + suffix_len) | |
2853 | continue; | |
2854 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2855 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2856 | suffix_len) != 0) |
2857 | continue; | |
2858 | } | |
551b43fd | 2859 | return &spec[i]; |
7dcb9820 | 2860 | } |
2f89ff8d L |
2861 | |
2862 | return NULL; | |
2863 | } | |
2864 | ||
7dcb9820 | 2865 | const struct bfd_elf_special_section * |
29ef7005 | 2866 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2867 | { |
551b43fd AM |
2868 | int i; |
2869 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2870 | const struct elf_backend_data *bed; |
2f89ff8d L |
2871 | |
2872 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2873 | if (sec->name == NULL) |
2874 | return NULL; | |
2f89ff8d | 2875 | |
29ef7005 L |
2876 | bed = get_elf_backend_data (abfd); |
2877 | spec = bed->special_sections; | |
2878 | if (spec) | |
2879 | { | |
2880 | spec = _bfd_elf_get_special_section (sec->name, | |
2881 | bed->special_sections, | |
2882 | sec->use_rela_p); | |
2883 | if (spec != NULL) | |
2884 | return spec; | |
2885 | } | |
2886 | ||
551b43fd AM |
2887 | if (sec->name[0] != '.') |
2888 | return NULL; | |
2f89ff8d | 2889 | |
551b43fd | 2890 | i = sec->name[1] - 'b'; |
1b315056 | 2891 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2892 | return NULL; |
2893 | ||
2894 | spec = special_sections[i]; | |
2f89ff8d | 2895 | |
551b43fd AM |
2896 | if (spec == NULL) |
2897 | return NULL; | |
2898 | ||
2899 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2900 | } |
2901 | ||
b34976b6 | 2902 | bfd_boolean |
217aa764 | 2903 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2904 | { |
2905 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2906 | const struct elf_backend_data *bed; |
7dcb9820 | 2907 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2908 | |
f0abc2a1 AM |
2909 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2910 | if (sdata == NULL) | |
2911 | { | |
a50b1753 | 2912 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2913 | sizeof (*sdata)); |
f0abc2a1 AM |
2914 | if (sdata == NULL) |
2915 | return FALSE; | |
217aa764 | 2916 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2917 | } |
bf572ba0 | 2918 | |
551b43fd AM |
2919 | /* Indicate whether or not this section should use RELA relocations. */ |
2920 | bed = get_elf_backend_data (abfd); | |
2921 | sec->use_rela_p = bed->default_use_rela_p; | |
2922 | ||
e843e0f8 L |
2923 | /* When we read a file, we don't need to set ELF section type and |
2924 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2925 | anyway. We will set ELF section type and flags for all linker | |
2926 | created sections. If user specifies BFD section flags, we will | |
2927 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2928 | elf_fake_sections. Special handling for .init_array/.fini_array |
2929 | output sections since they may contain .ctors/.dtors input | |
2930 | sections. We don't want _bfd_elf_init_private_section_data to | |
2931 | copy ELF section type from .ctors/.dtors input sections. */ | |
2932 | if (abfd->direction != read_direction | |
3496cb2a | 2933 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2934 | { |
551b43fd | 2935 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2936 | if (ssect != NULL |
2937 | && (!sec->flags | |
2938 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2939 | || ssect->type == SHT_INIT_ARRAY | |
2940 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2941 | { |
2942 | elf_section_type (sec) = ssect->type; | |
2943 | elf_section_flags (sec) = ssect->attr; | |
2944 | } | |
2f89ff8d L |
2945 | } |
2946 | ||
f592407e | 2947 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2948 | } |
2949 | ||
2950 | /* Create a new bfd section from an ELF program header. | |
2951 | ||
2952 | Since program segments have no names, we generate a synthetic name | |
2953 | of the form segment<NUM>, where NUM is generally the index in the | |
2954 | program header table. For segments that are split (see below) we | |
2955 | generate the names segment<NUM>a and segment<NUM>b. | |
2956 | ||
2957 | Note that some program segments may have a file size that is different than | |
2958 | (less than) the memory size. All this means is that at execution the | |
2959 | system must allocate the amount of memory specified by the memory size, | |
2960 | but only initialize it with the first "file size" bytes read from the | |
2961 | file. This would occur for example, with program segments consisting | |
2962 | of combined data+bss. | |
2963 | ||
2964 | To handle the above situation, this routine generates TWO bfd sections | |
2965 | for the single program segment. The first has the length specified by | |
2966 | the file size of the segment, and the second has the length specified | |
2967 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2968 | into its initialized and uninitialized parts. |
252b5132 RH |
2969 | |
2970 | */ | |
2971 | ||
b34976b6 | 2972 | bfd_boolean |
217aa764 AM |
2973 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2974 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2975 | int hdr_index, |
a50b1753 | 2976 | const char *type_name) |
252b5132 RH |
2977 | { |
2978 | asection *newsect; | |
2979 | char *name; | |
2980 | char namebuf[64]; | |
d4c88bbb | 2981 | size_t len; |
252b5132 RH |
2982 | int split; |
2983 | ||
2984 | split = ((hdr->p_memsz > 0) | |
2985 | && (hdr->p_filesz > 0) | |
2986 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2987 | |
2988 | if (hdr->p_filesz > 0) | |
252b5132 | 2989 | { |
91d6fa6a | 2990 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2991 | len = strlen (namebuf) + 1; |
a50b1753 | 2992 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2993 | if (!name) |
2994 | return FALSE; | |
2995 | memcpy (name, namebuf, len); | |
2996 | newsect = bfd_make_section (abfd, name); | |
2997 | if (newsect == NULL) | |
2998 | return FALSE; | |
2999 | newsect->vma = hdr->p_vaddr; | |
3000 | newsect->lma = hdr->p_paddr; | |
3001 | newsect->size = hdr->p_filesz; | |
3002 | newsect->filepos = hdr->p_offset; | |
3003 | newsect->flags |= SEC_HAS_CONTENTS; | |
3004 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
3005 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 3006 | { |
d5191d0c AM |
3007 | newsect->flags |= SEC_ALLOC; |
3008 | newsect->flags |= SEC_LOAD; | |
3009 | if (hdr->p_flags & PF_X) | |
3010 | { | |
3011 | /* FIXME: all we known is that it has execute PERMISSION, | |
3012 | may be data. */ | |
3013 | newsect->flags |= SEC_CODE; | |
3014 | } | |
3015 | } | |
3016 | if (!(hdr->p_flags & PF_W)) | |
3017 | { | |
3018 | newsect->flags |= SEC_READONLY; | |
252b5132 | 3019 | } |
252b5132 RH |
3020 | } |
3021 | ||
d5191d0c | 3022 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 3023 | { |
d5191d0c AM |
3024 | bfd_vma align; |
3025 | ||
91d6fa6a | 3026 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 3027 | len = strlen (namebuf) + 1; |
a50b1753 | 3028 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3029 | if (!name) |
b34976b6 | 3030 | return FALSE; |
d4c88bbb | 3031 | memcpy (name, namebuf, len); |
252b5132 RH |
3032 | newsect = bfd_make_section (abfd, name); |
3033 | if (newsect == NULL) | |
b34976b6 | 3034 | return FALSE; |
252b5132 RH |
3035 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
3036 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 3037 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3038 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3039 | align = newsect->vma & -newsect->vma; | |
3040 | if (align == 0 || align > hdr->p_align) | |
3041 | align = hdr->p_align; | |
3042 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3043 | if (hdr->p_type == PT_LOAD) |
3044 | { | |
d5191d0c AM |
3045 | /* Hack for gdb. Segments that have not been modified do |
3046 | not have their contents written to a core file, on the | |
3047 | assumption that a debugger can find the contents in the | |
3048 | executable. We flag this case by setting the fake | |
3049 | section size to zero. Note that "real" bss sections will | |
3050 | always have their contents dumped to the core file. */ | |
3051 | if (bfd_get_format (abfd) == bfd_core) | |
3052 | newsect->size = 0; | |
252b5132 RH |
3053 | newsect->flags |= SEC_ALLOC; |
3054 | if (hdr->p_flags & PF_X) | |
3055 | newsect->flags |= SEC_CODE; | |
3056 | } | |
3057 | if (!(hdr->p_flags & PF_W)) | |
3058 | newsect->flags |= SEC_READONLY; | |
3059 | } | |
3060 | ||
b34976b6 | 3061 | return TRUE; |
252b5132 RH |
3062 | } |
3063 | ||
b34976b6 | 3064 | bfd_boolean |
91d6fa6a | 3065 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3066 | { |
9c5bfbb7 | 3067 | const struct elf_backend_data *bed; |
20cfcaae NC |
3068 | |
3069 | switch (hdr->p_type) | |
3070 | { | |
3071 | case PT_NULL: | |
91d6fa6a | 3072 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3073 | |
3074 | case PT_LOAD: | |
91d6fa6a | 3075 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
3076 | |
3077 | case PT_DYNAMIC: | |
91d6fa6a | 3078 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3079 | |
3080 | case PT_INTERP: | |
91d6fa6a | 3081 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3082 | |
3083 | case PT_NOTE: | |
91d6fa6a | 3084 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3085 | return FALSE; |
276da9b3 L |
3086 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3087 | hdr->p_align)) | |
b34976b6 AM |
3088 | return FALSE; |
3089 | return TRUE; | |
20cfcaae NC |
3090 | |
3091 | case PT_SHLIB: | |
91d6fa6a | 3092 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3093 | |
3094 | case PT_PHDR: | |
91d6fa6a | 3095 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3096 | |
811072d8 | 3097 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3098 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3099 | "eh_frame_hdr"); |
3100 | ||
2b05f1b7 | 3101 | case PT_GNU_STACK: |
91d6fa6a | 3102 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3103 | |
8c37241b | 3104 | case PT_GNU_RELRO: |
91d6fa6a | 3105 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3106 | |
20cfcaae | 3107 | default: |
8c1acd09 | 3108 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3109 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3110 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3111 | } |
3112 | } | |
3113 | ||
d4730f92 BS |
3114 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3115 | REL or RELA. */ | |
3116 | ||
3117 | Elf_Internal_Shdr * | |
3118 | _bfd_elf_single_rel_hdr (asection *sec) | |
3119 | { | |
3120 | if (elf_section_data (sec)->rel.hdr) | |
3121 | { | |
3122 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3123 | return elf_section_data (sec)->rel.hdr; | |
3124 | } | |
3125 | else | |
3126 | return elf_section_data (sec)->rela.hdr; | |
3127 | } | |
3128 | ||
3e19fb8f L |
3129 | static bfd_boolean |
3130 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3131 | Elf_Internal_Shdr *rel_hdr, | |
3132 | const char *sec_name, | |
3133 | bfd_boolean use_rela_p) | |
3134 | { | |
3135 | char *name = (char *) bfd_alloc (abfd, | |
3136 | sizeof ".rela" + strlen (sec_name)); | |
3137 | if (name == NULL) | |
3138 | return FALSE; | |
3139 | ||
3140 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3141 | rel_hdr->sh_name = | |
3142 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3143 | FALSE); | |
3144 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3145 | return FALSE; | |
3146 | ||
3147 | return TRUE; | |
3148 | } | |
3149 | ||
d4730f92 BS |
3150 | /* Allocate and initialize a section-header for a new reloc section, |
3151 | containing relocations against ASECT. It is stored in RELDATA. If | |
3152 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3153 | relocations. */ | |
23bc299b | 3154 | |
5d13b3b3 | 3155 | static bfd_boolean |
217aa764 | 3156 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3157 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3158 | const char *sec_name, |
3e19fb8f L |
3159 | bfd_boolean use_rela_p, |
3160 | bfd_boolean delay_st_name_p) | |
23bc299b | 3161 | { |
d4730f92 | 3162 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3163 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3164 | |
d4730f92 | 3165 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3166 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3167 | reldata->hdr = rel_hdr; |
23bc299b | 3168 | |
3e19fb8f L |
3169 | if (delay_st_name_p) |
3170 | rel_hdr->sh_name = (unsigned int) -1; | |
3171 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3172 | use_rela_p)) | |
b34976b6 | 3173 | return FALSE; |
23bc299b MM |
3174 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3175 | rel_hdr->sh_entsize = (use_rela_p | |
3176 | ? bed->s->sizeof_rela | |
3177 | : bed->s->sizeof_rel); | |
72de5009 | 3178 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3179 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3180 | rel_hdr->sh_addr = 0; |
3181 | rel_hdr->sh_size = 0; | |
3182 | rel_hdr->sh_offset = 0; | |
3183 | ||
b34976b6 | 3184 | return TRUE; |
23bc299b MM |
3185 | } |
3186 | ||
94be91de JB |
3187 | /* Return the default section type based on the passed in section flags. */ |
3188 | ||
3189 | int | |
3190 | bfd_elf_get_default_section_type (flagword flags) | |
3191 | { | |
0e41bebb | 3192 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3193 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3194 | return SHT_NOBITS; |
3195 | return SHT_PROGBITS; | |
3196 | } | |
3197 | ||
d4730f92 BS |
3198 | struct fake_section_arg |
3199 | { | |
3200 | struct bfd_link_info *link_info; | |
3201 | bfd_boolean failed; | |
3202 | }; | |
3203 | ||
252b5132 RH |
3204 | /* Set up an ELF internal section header for a section. */ |
3205 | ||
252b5132 | 3206 | static void |
d4730f92 | 3207 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3208 | { |
d4730f92 | 3209 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3210 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3211 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3212 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3213 | unsigned int sh_type; |
0ce398f1 | 3214 | const char *name = asect->name; |
3e19fb8f | 3215 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3216 | |
d4730f92 | 3217 | if (arg->failed) |
252b5132 RH |
3218 | { |
3219 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3220 | loop. */ |
252b5132 RH |
3221 | return; |
3222 | } | |
3223 | ||
d4730f92 | 3224 | this_hdr = &esd->this_hdr; |
252b5132 | 3225 | |
f6fe1ccd | 3226 | if (arg->link_info) |
0ce398f1 | 3227 | { |
f6fe1ccd L |
3228 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3229 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3230 | && (asect->flags & SEC_DEBUGGING) | |
3231 | && name[1] == 'd' | |
3232 | && name[6] == '_') | |
3233 | { | |
3234 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3235 | compressed. */ | |
3236 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3237 | |
dd905818 | 3238 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3239 | name to section name section after it is compressed in |
3240 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3241 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3242 | } |
3243 | } | |
3244 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3245 | { | |
3246 | /* objcopy: rename output DWARF debug section. */ | |
3247 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3248 | { | |
3249 | /* When we decompress or compress with SHF_COMPRESSED, | |
3250 | convert section name from .zdebug_* to .debug_* if | |
3251 | needed. */ | |
3252 | if (name[1] == 'z') | |
3253 | { | |
3254 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3255 | if (new_name == NULL) | |
3256 | { | |
3257 | arg->failed = TRUE; | |
3258 | return; | |
3259 | } | |
3260 | name = new_name; | |
3261 | } | |
3262 | } | |
3263 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3264 | { |
f6fe1ccd L |
3265 | /* PR binutils/18087: Compression does not always make a |
3266 | section smaller. So only rename the section when | |
3267 | compression has actually taken place. If input section | |
3268 | name is .zdebug_*, we should never compress it again. */ | |
3269 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3270 | if (new_name == NULL) |
3271 | { | |
3272 | arg->failed = TRUE; | |
3273 | return; | |
3274 | } | |
f6fe1ccd L |
3275 | BFD_ASSERT (name[1] != 'z'); |
3276 | name = new_name; | |
0ce398f1 L |
3277 | } |
3278 | } | |
3279 | ||
3e19fb8f L |
3280 | if (delay_st_name_p) |
3281 | this_hdr->sh_name = (unsigned int) -1; | |
3282 | else | |
252b5132 | 3283 | { |
3e19fb8f L |
3284 | this_hdr->sh_name |
3285 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3286 | name, FALSE); | |
3287 | if (this_hdr->sh_name == (unsigned int) -1) | |
3288 | { | |
3289 | arg->failed = TRUE; | |
3290 | return; | |
3291 | } | |
252b5132 RH |
3292 | } |
3293 | ||
a4d8e49b | 3294 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3295 | |
3296 | if ((asect->flags & SEC_ALLOC) != 0 | |
3297 | || asect->user_set_vma) | |
3298 | this_hdr->sh_addr = asect->vma; | |
3299 | else | |
3300 | this_hdr->sh_addr = 0; | |
3301 | ||
3302 | this_hdr->sh_offset = 0; | |
eea6121a | 3303 | this_hdr->sh_size = asect->size; |
252b5132 | 3304 | this_hdr->sh_link = 0; |
c86934ce NC |
3305 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3306 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3307 | { | |
4eca0228 | 3308 | _bfd_error_handler |
695344c0 | 3309 | /* xgettext:c-format */ |
9793eb77 | 3310 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3311 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3312 | arg->failed = TRUE; |
3313 | return; | |
3314 | } | |
72de5009 | 3315 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3316 | /* The sh_entsize and sh_info fields may have been set already by |
3317 | copy_private_section_data. */ | |
3318 | ||
3319 | this_hdr->bfd_section = asect; | |
3320 | this_hdr->contents = NULL; | |
3321 | ||
3cddba1e L |
3322 | /* If the section type is unspecified, we set it based on |
3323 | asect->flags. */ | |
98ece1b3 AM |
3324 | if ((asect->flags & SEC_GROUP) != 0) |
3325 | sh_type = SHT_GROUP; | |
98ece1b3 | 3326 | else |
94be91de | 3327 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3328 | |
3cddba1e | 3329 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3330 | this_hdr->sh_type = sh_type; |
3331 | else if (this_hdr->sh_type == SHT_NOBITS | |
3332 | && sh_type == SHT_PROGBITS | |
3333 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3334 | { |
98ece1b3 AM |
3335 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3336 | allow the link to proceed. This can happen when users link | |
3337 | non-bss input sections to bss output sections, or emit data | |
3338 | to a bss output section via a linker script. */ | |
4eca0228 | 3339 | _bfd_error_handler |
871b3ab2 | 3340 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3341 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3342 | } |
3343 | ||
2f89ff8d | 3344 | switch (this_hdr->sh_type) |
252b5132 | 3345 | { |
2f89ff8d | 3346 | default: |
2f89ff8d L |
3347 | break; |
3348 | ||
3349 | case SHT_STRTAB: | |
2f89ff8d L |
3350 | case SHT_NOTE: |
3351 | case SHT_NOBITS: | |
3352 | case SHT_PROGBITS: | |
3353 | break; | |
606851fb AM |
3354 | |
3355 | case SHT_INIT_ARRAY: | |
3356 | case SHT_FINI_ARRAY: | |
3357 | case SHT_PREINIT_ARRAY: | |
3358 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3359 | break; | |
2f89ff8d L |
3360 | |
3361 | case SHT_HASH: | |
c7ac6ff8 | 3362 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3363 | break; |
5de3bf90 | 3364 | |
2f89ff8d | 3365 | case SHT_DYNSYM: |
252b5132 | 3366 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3367 | break; |
3368 | ||
3369 | case SHT_DYNAMIC: | |
252b5132 | 3370 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3371 | break; |
3372 | ||
3373 | case SHT_RELA: | |
3374 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3375 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3376 | break; | |
3377 | ||
3378 | case SHT_REL: | |
3379 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3380 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3381 | break; | |
3382 | ||
3383 | case SHT_GNU_versym: | |
252b5132 | 3384 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3385 | break; |
3386 | ||
3387 | case SHT_GNU_verdef: | |
252b5132 RH |
3388 | this_hdr->sh_entsize = 0; |
3389 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3390 | cverdefs. The linker will set cverdefs, but sh_info will be |
3391 | zero. */ | |
252b5132 RH |
3392 | if (this_hdr->sh_info == 0) |
3393 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3394 | else | |
3395 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3396 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3397 | break; |
3398 | ||
3399 | case SHT_GNU_verneed: | |
252b5132 RH |
3400 | this_hdr->sh_entsize = 0; |
3401 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3402 | cverrefs. The linker will set cverrefs, but sh_info will be |
3403 | zero. */ | |
252b5132 RH |
3404 | if (this_hdr->sh_info == 0) |
3405 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3406 | else | |
3407 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3408 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3409 | break; |
3410 | ||
3411 | case SHT_GROUP: | |
1783205a | 3412 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3413 | break; |
fdc90cb4 JJ |
3414 | |
3415 | case SHT_GNU_HASH: | |
3416 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3417 | break; | |
dbb410c3 | 3418 | } |
252b5132 RH |
3419 | |
3420 | if ((asect->flags & SEC_ALLOC) != 0) | |
3421 | this_hdr->sh_flags |= SHF_ALLOC; | |
3422 | if ((asect->flags & SEC_READONLY) == 0) | |
3423 | this_hdr->sh_flags |= SHF_WRITE; | |
3424 | if ((asect->flags & SEC_CODE) != 0) | |
3425 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3426 | if ((asect->flags & SEC_MERGE) != 0) |
3427 | { | |
3428 | this_hdr->sh_flags |= SHF_MERGE; | |
3429 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3430 | } |
84865015 NC |
3431 | if ((asect->flags & SEC_STRINGS) != 0) |
3432 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3433 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3434 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3435 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3436 | { |
3437 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3438 | if (asect->size == 0 |
3439 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3440 | { |
3a800eb9 | 3441 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3442 | |
704afa60 | 3443 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3444 | if (o != NULL) |
3445 | { | |
704afa60 | 3446 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3447 | if (this_hdr->sh_size != 0) |
3448 | this_hdr->sh_type = SHT_NOBITS; | |
3449 | } | |
704afa60 JJ |
3450 | } |
3451 | } | |
18ae9cc1 L |
3452 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3453 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3454 | |
d4730f92 BS |
3455 | /* If the section has relocs, set up a section header for the |
3456 | SHT_REL[A] section. If two relocation sections are required for | |
3457 | this section, it is up to the processor-specific back-end to | |
3458 | create the other. */ | |
3459 | if ((asect->flags & SEC_RELOC) != 0) | |
3460 | { | |
3461 | /* When doing a relocatable link, create both REL and RELA sections if | |
3462 | needed. */ | |
3463 | if (arg->link_info | |
3464 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3465 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3466 | && (bfd_link_relocatable (arg->link_info) |
3467 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3468 | { |
3469 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3470 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3471 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3472 | { |
3473 | arg->failed = TRUE; | |
3474 | return; | |
3475 | } | |
3476 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3477 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3478 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3479 | { |
3480 | arg->failed = TRUE; | |
3481 | return; | |
3482 | } | |
3483 | } | |
3484 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3485 | (asect->use_rela_p | |
3486 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3487 | name, |
3e19fb8f L |
3488 | asect->use_rela_p, |
3489 | delay_st_name_p)) | |
db4677b8 | 3490 | { |
d4730f92 | 3491 | arg->failed = TRUE; |
db4677b8 AM |
3492 | return; |
3493 | } | |
d4730f92 BS |
3494 | } |
3495 | ||
252b5132 | 3496 | /* Check for processor-specific section types. */ |
0414f35b | 3497 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3498 | if (bed->elf_backend_fake_sections |
3499 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3500 | { |
3501 | arg->failed = TRUE; | |
3502 | return; | |
3503 | } | |
252b5132 | 3504 | |
42bb2e33 | 3505 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3506 | { |
3507 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3508 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3509 | this_hdr->sh_type = sh_type; |
3510 | } | |
252b5132 RH |
3511 | } |
3512 | ||
bcacc0f5 AM |
3513 | /* Fill in the contents of a SHT_GROUP section. Called from |
3514 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3515 | when ELF targets use the generic linker, ld. Called for ld -r | |
3516 | from bfd_elf_final_link. */ | |
dbb410c3 | 3517 | |
1126897b | 3518 | void |
217aa764 | 3519 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3520 | { |
a50b1753 | 3521 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3522 | asection *elt, *first; |
dbb410c3 | 3523 | unsigned char *loc; |
b34976b6 | 3524 | bfd_boolean gas; |
dbb410c3 | 3525 | |
7e4111ad L |
3526 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3527 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3528 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3529 | || sec->size == 0 | |
dbb410c3 AM |
3530 | || *failedptr) |
3531 | return; | |
3532 | ||
bcacc0f5 AM |
3533 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3534 | { | |
3535 | unsigned long symindx = 0; | |
3536 | ||
3537 | /* elf_group_id will have been set up by objcopy and the | |
3538 | generic linker. */ | |
3539 | if (elf_group_id (sec) != NULL) | |
3540 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3541 | |
bcacc0f5 AM |
3542 | if (symindx == 0) |
3543 | { | |
3544 | /* If called from the assembler, swap_out_syms will have set up | |
3545 | elf_section_syms. */ | |
3546 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3547 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3548 | } | |
3549 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3550 | } | |
3551 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3552 | { |
bcacc0f5 AM |
3553 | /* The ELF backend linker sets sh_info to -2 when the group |
3554 | signature symbol is global, and thus the index can't be | |
3555 | set until all local symbols are output. */ | |
53720c49 AM |
3556 | asection *igroup; |
3557 | struct bfd_elf_section_data *sec_data; | |
3558 | unsigned long symndx; | |
3559 | unsigned long extsymoff; | |
bcacc0f5 AM |
3560 | struct elf_link_hash_entry *h; |
3561 | ||
53720c49 AM |
3562 | /* The point of this little dance to the first SHF_GROUP section |
3563 | then back to the SHT_GROUP section is that this gets us to | |
3564 | the SHT_GROUP in the input object. */ | |
3565 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3566 | sec_data = elf_section_data (igroup); | |
3567 | symndx = sec_data->this_hdr.sh_info; | |
3568 | extsymoff = 0; | |
bcacc0f5 AM |
3569 | if (!elf_bad_symtab (igroup->owner)) |
3570 | { | |
3571 | Elf_Internal_Shdr *symtab_hdr; | |
3572 | ||
3573 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3574 | extsymoff = symtab_hdr->sh_info; | |
3575 | } | |
3576 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3577 | while (h->root.type == bfd_link_hash_indirect | |
3578 | || h->root.type == bfd_link_hash_warning) | |
3579 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3580 | ||
3581 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3582 | } |
dbb410c3 | 3583 | |
1126897b | 3584 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3585 | gas = TRUE; |
dbb410c3 AM |
3586 | if (sec->contents == NULL) |
3587 | { | |
b34976b6 | 3588 | gas = FALSE; |
a50b1753 | 3589 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3590 | |
3591 | /* Arrange for the section to be written out. */ | |
3592 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3593 | if (sec->contents == NULL) |
3594 | { | |
b34976b6 | 3595 | *failedptr = TRUE; |
dbb410c3 AM |
3596 | return; |
3597 | } | |
3598 | } | |
3599 | ||
eea6121a | 3600 | loc = sec->contents + sec->size; |
dbb410c3 | 3601 | |
9dce4196 AM |
3602 | /* Get the pointer to the first section in the group that gas |
3603 | squirreled away here. objcopy arranges for this to be set to the | |
3604 | start of the input section group. */ | |
3605 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3606 | |
3607 | /* First element is a flag word. Rest of section is elf section | |
3608 | indices for all the sections of the group. Write them backwards | |
3609 | just to keep the group in the same order as given in .section | |
3610 | directives, not that it matters. */ | |
3611 | while (elt != NULL) | |
3612 | { | |
9dce4196 | 3613 | asection *s; |
9dce4196 | 3614 | |
9dce4196 | 3615 | s = elt; |
415f38a6 AM |
3616 | if (!gas) |
3617 | s = s->output_section; | |
3618 | if (s != NULL | |
3619 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3620 | { |
db4677b8 | 3621 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3622 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3623 | ||
3624 | if (elf_sec->rel.hdr != NULL | |
3625 | && (gas | |
3626 | || (input_elf_sec->rel.hdr != NULL | |
3627 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3628 | { |
28e07a05 | 3629 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3630 | loc -= 4; |
3631 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3632 | } | |
28e07a05 AM |
3633 | if (elf_sec->rela.hdr != NULL |
3634 | && (gas | |
3635 | || (input_elf_sec->rela.hdr != NULL | |
3636 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3637 | { |
28e07a05 | 3638 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3639 | loc -= 4; |
3640 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3641 | } | |
01e1a5bc | 3642 | loc -= 4; |
db4677b8 | 3643 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3644 | } |
945906ff | 3645 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3646 | if (elt == first) |
3647 | break; | |
dbb410c3 AM |
3648 | } |
3649 | ||
7bdf4127 AB |
3650 | loc -= 4; |
3651 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3652 | |
9dce4196 | 3653 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3654 | } |
3655 | ||
bce964aa AM |
3656 | /* Given NAME, the name of a relocation section stripped of its |
3657 | .rel/.rela prefix, return the section in ABFD to which the | |
3658 | relocations apply. */ | |
bd53a53a L |
3659 | |
3660 | asection * | |
bce964aa AM |
3661 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3662 | { | |
3663 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3664 | section likely apply to .got.plt or .got section. */ | |
3665 | if (get_elf_backend_data (abfd)->want_got_plt | |
3666 | && strcmp (name, ".plt") == 0) | |
3667 | { | |
3668 | asection *sec; | |
3669 | ||
3670 | name = ".got.plt"; | |
3671 | sec = bfd_get_section_by_name (abfd, name); | |
3672 | if (sec != NULL) | |
3673 | return sec; | |
3674 | name = ".got"; | |
3675 | } | |
3676 | ||
3677 | return bfd_get_section_by_name (abfd, name); | |
3678 | } | |
3679 | ||
3680 | /* Return the section to which RELOC_SEC applies. */ | |
3681 | ||
3682 | static asection * | |
3683 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3684 | { |
3685 | const char *name; | |
3686 | unsigned int type; | |
3687 | bfd *abfd; | |
bce964aa | 3688 | const struct elf_backend_data *bed; |
bd53a53a L |
3689 | |
3690 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3691 | if (type != SHT_REL && type != SHT_RELA) | |
3692 | return NULL; | |
3693 | ||
3694 | /* We look up the section the relocs apply to by name. */ | |
3695 | name = reloc_sec->name; | |
bce964aa AM |
3696 | if (strncmp (name, ".rel", 4) != 0) |
3697 | return NULL; | |
3698 | name += 4; | |
3699 | if (type == SHT_RELA && *name++ != 'a') | |
3700 | return NULL; | |
bd53a53a | 3701 | |
bd53a53a | 3702 | abfd = reloc_sec->owner; |
bce964aa AM |
3703 | bed = get_elf_backend_data (abfd); |
3704 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3705 | } |
3706 | ||
252b5132 RH |
3707 | /* Assign all ELF section numbers. The dummy first section is handled here |
3708 | too. The link/info pointers for the standard section types are filled | |
3709 | in here too, while we're at it. */ | |
3710 | ||
b34976b6 | 3711 | static bfd_boolean |
da9f89d4 | 3712 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3713 | { |
3714 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3715 | asection *sec; | |
3e19fb8f | 3716 | unsigned int section_number; |
252b5132 | 3717 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3718 | struct bfd_elf_section_data *d; |
3516e984 | 3719 | bfd_boolean need_symtab; |
252b5132 RH |
3720 | |
3721 | section_number = 1; | |
3722 | ||
2b0f7ef9 JJ |
3723 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3724 | ||
da9f89d4 | 3725 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3726 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3727 | { |
ef53be89 | 3728 | size_t reloc_count = 0; |
14f2c699 | 3729 | |
da9f89d4 | 3730 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3731 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3732 | { |
5daa8fe7 | 3733 | d = elf_section_data (sec); |
da9f89d4 L |
3734 | |
3735 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3736 | { |
5daa8fe7 | 3737 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3738 | { |
3739 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3740 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3741 | abfd->section_count--; |
da9f89d4 | 3742 | } |
08a40648 | 3743 | else |
4fbb74a6 | 3744 | d->this_idx = section_number++; |
da9f89d4 | 3745 | } |
14f2c699 L |
3746 | |
3747 | /* Count relocations. */ | |
3748 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3749 | } |
14f2c699 L |
3750 | |
3751 | /* Clear HAS_RELOC if there are no relocations. */ | |
3752 | if (reloc_count == 0) | |
3753 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3754 | } |
3755 | ||
3756 | for (sec = abfd->sections; sec; sec = sec->next) | |
3757 | { | |
3758 | d = elf_section_data (sec); | |
3759 | ||
3760 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3761 | d->this_idx = section_number++; |
3e19fb8f L |
3762 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3763 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3764 | if (d->rel.hdr) |
2b0f7ef9 | 3765 | { |
d4730f92 | 3766 | d->rel.idx = section_number++; |
3e19fb8f L |
3767 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3768 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3769 | } |
d4730f92 BS |
3770 | else |
3771 | d->rel.idx = 0; | |
23bc299b | 3772 | |
d4730f92 | 3773 | if (d->rela.hdr) |
2b0f7ef9 | 3774 | { |
d4730f92 | 3775 | d->rela.idx = section_number++; |
3e19fb8f L |
3776 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3777 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3778 | } |
23bc299b | 3779 | else |
d4730f92 | 3780 | d->rela.idx = 0; |
252b5132 RH |
3781 | } |
3782 | ||
3516e984 L |
3783 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3784 | || (link_info == NULL | |
3785 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3786 | == HAS_RELOC))); | |
3787 | if (need_symtab) | |
252b5132 | 3788 | { |
12bd6957 | 3789 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3790 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3791 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3792 | { |
7a6e0d89 | 3793 | elf_section_list *entry; |
6a40cf0c NC |
3794 | |
3795 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3796 | ||
7a6e0d89 | 3797 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3798 | entry->ndx = section_number++; |
3799 | elf_symtab_shndx_list (abfd) = entry; | |
3800 | entry->hdr.sh_name | |
9ad5cbcf | 3801 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3802 | ".symtab_shndx", FALSE); |
6a40cf0c | 3803 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3804 | return FALSE; |
9ad5cbcf | 3805 | } |
12bd6957 | 3806 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3807 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3808 | } |
3809 | ||
dd905818 NC |
3810 | elf_shstrtab_sec (abfd) = section_number++; |
3811 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3812 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3813 | ||
1c52a645 L |
3814 | if (section_number >= SHN_LORESERVE) |
3815 | { | |
695344c0 | 3816 | /* xgettext:c-format */ |
871b3ab2 | 3817 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3818 | abfd, section_number); |
3819 | return FALSE; | |
3820 | } | |
3821 | ||
9ad5cbcf | 3822 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3823 | elf_elfheader (abfd)->e_shnum = section_number; |
3824 | ||
3825 | /* Set up the list of section header pointers, in agreement with the | |
3826 | indices. */ | |
a50b1753 | 3827 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
07d6d2b8 | 3828 | sizeof (Elf_Internal_Shdr *)); |
252b5132 | 3829 | if (i_shdrp == NULL) |
b34976b6 | 3830 | return FALSE; |
252b5132 | 3831 | |
a50b1753 | 3832 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3833 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3834 | if (i_shdrp[0] == NULL) |
3835 | { | |
3836 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3837 | return FALSE; |
252b5132 | 3838 | } |
252b5132 RH |
3839 | |
3840 | elf_elfsections (abfd) = i_shdrp; | |
3841 | ||
12bd6957 | 3842 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3843 | if (need_symtab) |
252b5132 | 3844 | { |
12bd6957 | 3845 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3846 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3847 | { |
6a40cf0c NC |
3848 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3849 | BFD_ASSERT (entry != NULL); | |
3850 | i_shdrp[entry->ndx] = & entry->hdr; | |
3851 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3852 | } |
12bd6957 AM |
3853 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3854 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3855 | } |
38ce5b11 | 3856 | |
252b5132 RH |
3857 | for (sec = abfd->sections; sec; sec = sec->next) |
3858 | { | |
252b5132 | 3859 | asection *s; |
252b5132 | 3860 | |
91d6fa6a NC |
3861 | d = elf_section_data (sec); |
3862 | ||
252b5132 | 3863 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3864 | if (d->rel.idx != 0) |
3865 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3866 | if (d->rela.idx != 0) | |
3867 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3868 | |
3869 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3870 | ||
3871 | /* sh_link of a reloc section is the section index of the symbol | |
3872 | table. sh_info is the section index of the section to which | |
3873 | the relocation entries apply. */ | |
d4730f92 | 3874 | if (d->rel.idx != 0) |
252b5132 | 3875 | { |
12bd6957 | 3876 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3877 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3878 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3879 | } |
d4730f92 | 3880 | if (d->rela.idx != 0) |
23bc299b | 3881 | { |
12bd6957 | 3882 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3883 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3884 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3885 | } |
252b5132 | 3886 | |
38ce5b11 L |
3887 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3888 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3889 | { | |
3890 | s = elf_linked_to_section (sec); | |
3891 | if (s) | |
38ce5b11 | 3892 | { |
f2876037 | 3893 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3894 | if (link_info != NULL) |
38ce5b11 | 3895 | { |
f2876037 | 3896 | /* Check discarded linkonce section. */ |
dbaa2011 | 3897 | if (discarded_section (s)) |
38ce5b11 | 3898 | { |
ccd2ec6a | 3899 | asection *kept; |
4eca0228 | 3900 | _bfd_error_handler |
695344c0 | 3901 | /* xgettext:c-format */ |
871b3ab2 AM |
3902 | (_("%pB: sh_link of section `%pA' points to" |
3903 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3904 | abfd, d->this_hdr.bfd_section, |
3905 | s, s->owner); | |
3906 | /* Point to the kept section if it has the same | |
3907 | size as the discarded one. */ | |
c0f00686 | 3908 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3909 | if (kept == NULL) |
185d09ad | 3910 | { |
ccd2ec6a L |
3911 | bfd_set_error (bfd_error_bad_value); |
3912 | return FALSE; | |
185d09ad | 3913 | } |
ccd2ec6a | 3914 | s = kept; |
38ce5b11 | 3915 | } |
e424ecc8 | 3916 | |
ccd2ec6a L |
3917 | s = s->output_section; |
3918 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3919 | } |
f2876037 L |
3920 | else |
3921 | { | |
3922 | /* Handle objcopy. */ | |
3923 | if (s->output_section == NULL) | |
3924 | { | |
4eca0228 | 3925 | _bfd_error_handler |
695344c0 | 3926 | /* xgettext:c-format */ |
871b3ab2 AM |
3927 | (_("%pB: sh_link of section `%pA' points to" |
3928 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3929 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3930 | bfd_set_error (bfd_error_bad_value); | |
3931 | return FALSE; | |
3932 | } | |
3933 | s = s->output_section; | |
3934 | } | |
ccd2ec6a L |
3935 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3936 | } | |
3937 | else | |
3938 | { | |
3939 | /* PR 290: | |
3940 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3941 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3942 | sh_info fields. Hence we could get the situation | |
08a40648 | 3943 | where s is NULL. */ |
ccd2ec6a L |
3944 | const struct elf_backend_data *bed |
3945 | = get_elf_backend_data (abfd); | |
3946 | if (bed->link_order_error_handler) | |
3947 | bed->link_order_error_handler | |
695344c0 | 3948 | /* xgettext:c-format */ |
871b3ab2 | 3949 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3950 | abfd, sec); |
38ce5b11 L |
3951 | } |
3952 | } | |
3953 | ||
252b5132 RH |
3954 | switch (d->this_hdr.sh_type) |
3955 | { | |
3956 | case SHT_REL: | |
3957 | case SHT_RELA: | |
3958 | /* A reloc section which we are treating as a normal BFD | |
3959 | section. sh_link is the section index of the symbol | |
3960 | table. sh_info is the section index of the section to | |
3961 | which the relocation entries apply. We assume that an | |
3962 | allocated reloc section uses the dynamic symbol table. | |
3963 | FIXME: How can we be sure? */ | |
3964 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3965 | if (s != NULL) | |
3966 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3967 | ||
bce964aa | 3968 | s = elf_get_reloc_section (sec); |
252b5132 | 3969 | if (s != NULL) |
9ef5d938 L |
3970 | { |
3971 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3972 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3973 | } | |
252b5132 RH |
3974 | break; |
3975 | ||
3976 | case SHT_STRTAB: | |
3977 | /* We assume that a section named .stab*str is a stabs | |
3978 | string section. We look for a section with the same name | |
3979 | but without the trailing ``str'', and set its sh_link | |
3980 | field to point to this section. */ | |
0112cd26 | 3981 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3982 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3983 | { | |
3984 | size_t len; | |
3985 | char *alc; | |
3986 | ||
3987 | len = strlen (sec->name); | |
a50b1753 | 3988 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3989 | if (alc == NULL) |
b34976b6 | 3990 | return FALSE; |
d4c88bbb | 3991 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3992 | alc[len - 3] = '\0'; |
3993 | s = bfd_get_section_by_name (abfd, alc); | |
3994 | free (alc); | |
3995 | if (s != NULL) | |
3996 | { | |
3997 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3998 | ||
3999 | /* This is a .stab section. */ | |
0594c12d AM |
4000 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
4001 | elf_section_data (s)->this_hdr.sh_entsize | |
4002 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
4003 | } |
4004 | } | |
4005 | break; | |
4006 | ||
4007 | case SHT_DYNAMIC: | |
4008 | case SHT_DYNSYM: | |
4009 | case SHT_GNU_verneed: | |
4010 | case SHT_GNU_verdef: | |
4011 | /* sh_link is the section header index of the string table | |
4012 | used for the dynamic entries, or the symbol table, or the | |
4013 | version strings. */ | |
4014 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
4015 | if (s != NULL) | |
4016 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4017 | break; | |
4018 | ||
7f1204bb JJ |
4019 | case SHT_GNU_LIBLIST: |
4020 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
4021 | list used for the dynamic entries, or the symbol table, or |
4022 | the version strings. */ | |
7f1204bb JJ |
4023 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
4024 | ? ".dynstr" : ".gnu.libstr"); | |
4025 | if (s != NULL) | |
4026 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4027 | break; | |
4028 | ||
252b5132 | 4029 | case SHT_HASH: |
fdc90cb4 | 4030 | case SHT_GNU_HASH: |
252b5132 RH |
4031 | case SHT_GNU_versym: |
4032 | /* sh_link is the section header index of the symbol table | |
4033 | this hash table or version table is for. */ | |
4034 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4035 | if (s != NULL) | |
4036 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4037 | break; | |
dbb410c3 AM |
4038 | |
4039 | case SHT_GROUP: | |
12bd6957 | 4040 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4041 | } |
4042 | } | |
4043 | ||
3e19fb8f L |
4044 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4045 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4046 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4047 | ||
b34976b6 | 4048 | return TRUE; |
252b5132 RH |
4049 | } |
4050 | ||
5372391b | 4051 | static bfd_boolean |
217aa764 | 4052 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4053 | { |
4054 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4055 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4056 | if (bed->elf_backend_sym_is_global) |
4057 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4058 | |
e47bf690 | 4059 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
4060 | || bfd_is_und_section (bfd_get_section (sym)) |
4061 | || bfd_is_com_section (bfd_get_section (sym))); | |
4062 | } | |
4063 | ||
76359541 TP |
4064 | /* Filter global symbols of ABFD to include in the import library. All |
4065 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4066 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4067 | the beginning of that array. | |
4068 | ||
4069 | Returns the number of symbols to keep. */ | |
4070 | ||
4071 | unsigned int | |
4072 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4073 | asymbol **syms, long symcount) | |
4074 | { | |
4075 | long src_count, dst_count = 0; | |
4076 | ||
4077 | for (src_count = 0; src_count < symcount; src_count++) | |
4078 | { | |
4079 | asymbol *sym = syms[src_count]; | |
4080 | char *name = (char *) bfd_asymbol_name (sym); | |
4081 | struct bfd_link_hash_entry *h; | |
4082 | ||
4083 | if (!sym_is_global (abfd, sym)) | |
4084 | continue; | |
4085 | ||
4086 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4087 | if (h == NULL) |
4088 | continue; | |
76359541 TP |
4089 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4090 | continue; | |
76359541 TP |
4091 | if (h->linker_def || h->ldscript_def) |
4092 | continue; | |
4093 | ||
4094 | syms[dst_count++] = sym; | |
4095 | } | |
4096 | ||
4097 | syms[dst_count] = NULL; | |
4098 | ||
4099 | return dst_count; | |
4100 | } | |
4101 | ||
5372391b | 4102 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4103 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4104 | |
4105 | static bfd_boolean | |
4106 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4107 | { | |
c6d8cab4 L |
4108 | elf_symbol_type *type_ptr; |
4109 | ||
db0c309f NC |
4110 | if (sym == NULL) |
4111 | return FALSE; | |
4112 | ||
c6d8cab4 L |
4113 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4114 | return FALSE; | |
4115 | ||
db0c309f NC |
4116 | if (sym->section == NULL) |
4117 | return TRUE; | |
4118 | ||
c6d8cab4 L |
4119 | type_ptr = elf_symbol_from (abfd, sym); |
4120 | return ((type_ptr != NULL | |
4121 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4122 | && bfd_is_abs_section (sym->section)) | |
4123 | || !(sym->section->owner == abfd | |
db0c309f NC |
4124 | || (sym->section->output_section != NULL |
4125 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4126 | && sym->section->output_offset == 0) |
4127 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4128 | } |
4129 | ||
2633a79c AM |
4130 | /* Map symbol from it's internal number to the external number, moving |
4131 | all local symbols to be at the head of the list. */ | |
4132 | ||
b34976b6 | 4133 | static bfd_boolean |
12bd6957 | 4134 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4135 | { |
dc810e39 | 4136 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4137 | asymbol **syms = bfd_get_outsymbols (abfd); |
4138 | asymbol **sect_syms; | |
dc810e39 AM |
4139 | unsigned int num_locals = 0; |
4140 | unsigned int num_globals = 0; | |
4141 | unsigned int num_locals2 = 0; | |
4142 | unsigned int num_globals2 = 0; | |
7292b3ac | 4143 | unsigned int max_index = 0; |
dc810e39 | 4144 | unsigned int idx; |
252b5132 RH |
4145 | asection *asect; |
4146 | asymbol **new_syms; | |
252b5132 RH |
4147 | |
4148 | #ifdef DEBUG | |
4149 | fprintf (stderr, "elf_map_symbols\n"); | |
4150 | fflush (stderr); | |
4151 | #endif | |
4152 | ||
252b5132 RH |
4153 | for (asect = abfd->sections; asect; asect = asect->next) |
4154 | { | |
4155 | if (max_index < asect->index) | |
4156 | max_index = asect->index; | |
4157 | } | |
4158 | ||
4159 | max_index++; | |
a50b1753 | 4160 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 4161 | if (sect_syms == NULL) |
b34976b6 | 4162 | return FALSE; |
252b5132 | 4163 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4164 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4165 | |
079e9a2f AM |
4166 | /* Init sect_syms entries for any section symbols we have already |
4167 | decided to output. */ | |
252b5132 RH |
4168 | for (idx = 0; idx < symcount; idx++) |
4169 | { | |
dc810e39 | 4170 | asymbol *sym = syms[idx]; |
c044fabd | 4171 | |
252b5132 | 4172 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4173 | && sym->value == 0 |
2633a79c AM |
4174 | && !ignore_section_sym (abfd, sym) |
4175 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4176 | { |
5372391b | 4177 | asection *sec = sym->section; |
252b5132 | 4178 | |
5372391b AM |
4179 | if (sec->owner != abfd) |
4180 | sec = sec->output_section; | |
252b5132 | 4181 | |
5372391b | 4182 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4183 | } |
4184 | } | |
4185 | ||
252b5132 RH |
4186 | /* Classify all of the symbols. */ |
4187 | for (idx = 0; idx < symcount; idx++) | |
4188 | { | |
2633a79c | 4189 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4190 | num_globals++; |
2633a79c AM |
4191 | else if (!ignore_section_sym (abfd, syms[idx])) |
4192 | num_locals++; | |
252b5132 | 4193 | } |
079e9a2f | 4194 | |
5372391b | 4195 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4196 | sections will already have a section symbol in outsymbols, but |
4197 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4198 | at least in that case. */ | |
252b5132 RH |
4199 | for (asect = abfd->sections; asect; asect = asect->next) |
4200 | { | |
079e9a2f | 4201 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4202 | { |
079e9a2f | 4203 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4204 | num_locals++; |
4205 | else | |
4206 | num_globals++; | |
252b5132 RH |
4207 | } |
4208 | } | |
4209 | ||
4210 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 | 4211 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
07d6d2b8 | 4212 | sizeof (asymbol *)); |
dc810e39 | 4213 | |
252b5132 | 4214 | if (new_syms == NULL) |
b34976b6 | 4215 | return FALSE; |
252b5132 RH |
4216 | |
4217 | for (idx = 0; idx < symcount; idx++) | |
4218 | { | |
4219 | asymbol *sym = syms[idx]; | |
dc810e39 | 4220 | unsigned int i; |
252b5132 | 4221 | |
2633a79c AM |
4222 | if (sym_is_global (abfd, sym)) |
4223 | i = num_locals + num_globals2++; | |
4224 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4225 | i = num_locals2++; |
4226 | else | |
2633a79c | 4227 | continue; |
252b5132 RH |
4228 | new_syms[i] = sym; |
4229 | sym->udata.i = i + 1; | |
4230 | } | |
4231 | for (asect = abfd->sections; asect; asect = asect->next) | |
4232 | { | |
079e9a2f | 4233 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4234 | { |
079e9a2f | 4235 | asymbol *sym = asect->symbol; |
dc810e39 | 4236 | unsigned int i; |
252b5132 | 4237 | |
079e9a2f | 4238 | sect_syms[asect->index] = sym; |
252b5132 RH |
4239 | if (!sym_is_global (abfd, sym)) |
4240 | i = num_locals2++; | |
4241 | else | |
4242 | i = num_locals + num_globals2++; | |
4243 | new_syms[i] = sym; | |
4244 | sym->udata.i = i + 1; | |
4245 | } | |
4246 | } | |
4247 | ||
4248 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4249 | ||
12bd6957 | 4250 | *pnum_locals = num_locals; |
b34976b6 | 4251 | return TRUE; |
252b5132 RH |
4252 | } |
4253 | ||
4254 | /* Align to the maximum file alignment that could be required for any | |
4255 | ELF data structure. */ | |
4256 | ||
268b6b39 | 4257 | static inline file_ptr |
217aa764 | 4258 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4259 | { |
4260 | return (off + align - 1) & ~(align - 1); | |
4261 | } | |
4262 | ||
4263 | /* Assign a file position to a section, optionally aligning to the | |
4264 | required section alignment. */ | |
4265 | ||
217aa764 AM |
4266 | file_ptr |
4267 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4268 | file_ptr offset, | |
4269 | bfd_boolean align) | |
252b5132 | 4270 | { |
72de5009 AM |
4271 | if (align && i_shdrp->sh_addralign > 1) |
4272 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4273 | i_shdrp->sh_offset = offset; |
4274 | if (i_shdrp->bfd_section != NULL) | |
4275 | i_shdrp->bfd_section->filepos = offset; | |
4276 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4277 | offset += i_shdrp->sh_size; | |
4278 | return offset; | |
4279 | } | |
4280 | ||
4281 | /* Compute the file positions we are going to put the sections at, and | |
4282 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4283 | is not NULL, this is being called by the ELF backend linker. */ | |
4284 | ||
b34976b6 | 4285 | bfd_boolean |
217aa764 AM |
4286 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4287 | struct bfd_link_info *link_info) | |
252b5132 | 4288 | { |
9c5bfbb7 | 4289 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4290 | struct fake_section_arg fsargs; |
b34976b6 | 4291 | bfd_boolean failed; |
ef10c3ac | 4292 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4293 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4294 | bfd_boolean need_symtab; |
252b5132 RH |
4295 | |
4296 | if (abfd->output_has_begun) | |
b34976b6 | 4297 | return TRUE; |
252b5132 RH |
4298 | |
4299 | /* Do any elf backend specific processing first. */ | |
4300 | if (bed->elf_backend_begin_write_processing) | |
4301 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4302 | ||
4303 | if (! prep_headers (abfd)) | |
b34976b6 | 4304 | return FALSE; |
252b5132 | 4305 | |
e6c51ed4 | 4306 | /* Post process the headers if necessary. */ |
78245035 | 4307 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 4308 | |
d4730f92 BS |
4309 | fsargs.failed = FALSE; |
4310 | fsargs.link_info = link_info; | |
4311 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4312 | if (fsargs.failed) | |
b34976b6 | 4313 | return FALSE; |
252b5132 | 4314 | |
da9f89d4 | 4315 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4316 | return FALSE; |
252b5132 RH |
4317 | |
4318 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4319 | need_symtab = (link_info == NULL |
4320 | && (bfd_get_symcount (abfd) > 0 | |
4321 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4322 | == HAS_RELOC))); | |
4323 | if (need_symtab) | |
252b5132 RH |
4324 | { |
4325 | /* Non-zero if doing a relocatable link. */ | |
4326 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4327 | ||
4328 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4329 | return FALSE; |
252b5132 RH |
4330 | } |
4331 | ||
d4730f92 | 4332 | failed = FALSE; |
1126897b | 4333 | if (link_info == NULL) |
dbb410c3 | 4334 | { |
1126897b | 4335 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4336 | if (failed) |
b34976b6 | 4337 | return FALSE; |
dbb410c3 AM |
4338 | } |
4339 | ||
252b5132 RH |
4340 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
4341 | /* sh_name was set in prep_headers. */ | |
4342 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
84865015 | 4343 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4344 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4345 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4346 | shstrtab_hdr->sh_entsize = 0; |
4347 | shstrtab_hdr->sh_link = 0; | |
4348 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4349 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4350 | shstrtab_hdr->sh_addralign = 1; |
4351 | ||
c84fca4d | 4352 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4353 | return FALSE; |
252b5132 | 4354 | |
3516e984 | 4355 | if (need_symtab) |
252b5132 RH |
4356 | { |
4357 | file_ptr off; | |
4358 | Elf_Internal_Shdr *hdr; | |
4359 | ||
12bd6957 | 4360 | off = elf_next_file_pos (abfd); |
252b5132 | 4361 | |
6a40cf0c | 4362 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4363 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4364 | |
6a40cf0c NC |
4365 | if (elf_symtab_shndx_list (abfd) != NULL) |
4366 | { | |
4367 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4368 | if (hdr->sh_size != 0) | |
4369 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4370 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4371 | } | |
9ad5cbcf | 4372 | |
252b5132 | 4373 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4374 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4375 | |
12bd6957 | 4376 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4377 | |
4378 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4379 | out. */ |
252b5132 | 4380 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4381 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4382 | return FALSE; |
ef10c3ac | 4383 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4384 | } |
4385 | ||
b34976b6 | 4386 | abfd->output_has_begun = TRUE; |
252b5132 | 4387 | |
b34976b6 | 4388 | return TRUE; |
252b5132 RH |
4389 | } |
4390 | ||
8ded5a0f AM |
4391 | /* Make an initial estimate of the size of the program header. If we |
4392 | get the number wrong here, we'll redo section placement. */ | |
4393 | ||
4394 | static bfd_size_type | |
4395 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4396 | { | |
4397 | size_t segs; | |
4398 | asection *s; | |
2b05f1b7 | 4399 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4400 | |
4401 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4402 | and one for data. */ | |
4403 | segs = 2; | |
4404 | ||
4405 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4406 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4407 | { |
4408 | /* If we have a loadable interpreter section, we need a | |
4409 | PT_INTERP segment. In this case, assume we also need a | |
4410 | PT_PHDR segment, although that may not be true for all | |
4411 | targets. */ | |
e9a38e0f | 4412 | segs += 2; |
8ded5a0f AM |
4413 | } |
4414 | ||
4415 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4416 | { | |
4417 | /* We need a PT_DYNAMIC segment. */ | |
4418 | ++segs; | |
f210dcff | 4419 | } |
08a40648 | 4420 | |
ceae84aa | 4421 | if (info != NULL && info->relro) |
f210dcff L |
4422 | { |
4423 | /* We need a PT_GNU_RELRO segment. */ | |
4424 | ++segs; | |
8ded5a0f AM |
4425 | } |
4426 | ||
12bd6957 | 4427 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4428 | { |
4429 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4430 | ++segs; | |
4431 | } | |
4432 | ||
12bd6957 | 4433 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4434 | { |
2b05f1b7 L |
4435 | /* We need a PT_GNU_STACK segment. */ |
4436 | ++segs; | |
4437 | } | |
94b11780 | 4438 | |
0a59decb L |
4439 | s = bfd_get_section_by_name (abfd, |
4440 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4441 | if (s != NULL && s->size != 0) | |
4442 | { | |
4443 | /* We need a PT_GNU_PROPERTY segment. */ | |
4444 | ++segs; | |
4445 | } | |
4446 | ||
2b05f1b7 L |
4447 | for (s = abfd->sections; s != NULL; s = s->next) |
4448 | { | |
8ded5a0f | 4449 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4450 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4451 | { |
23e463ed | 4452 | unsigned int alignment_power; |
8ded5a0f AM |
4453 | /* We need a PT_NOTE segment. */ |
4454 | ++segs; | |
23e463ed L |
4455 | /* Try to create just one PT_NOTE segment for all adjacent |
4456 | loadable SHT_NOTE sections. gABI requires that within a | |
4457 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4458 | each note should have the same alignment. So we check | |
4459 | whether the sections are correctly aligned. */ | |
4460 | alignment_power = s->alignment_power; | |
4461 | while (s->next != NULL | |
4462 | && s->next->alignment_power == alignment_power | |
4463 | && (s->next->flags & SEC_LOAD) != 0 | |
4464 | && elf_section_type (s->next) == SHT_NOTE) | |
4465 | s = s->next; | |
8ded5a0f AM |
4466 | } |
4467 | } | |
4468 | ||
4469 | for (s = abfd->sections; s != NULL; s = s->next) | |
4470 | { | |
4471 | if (s->flags & SEC_THREAD_LOCAL) | |
4472 | { | |
4473 | /* We need a PT_TLS segment. */ | |
4474 | ++segs; | |
4475 | break; | |
4476 | } | |
4477 | } | |
4478 | ||
2b05f1b7 | 4479 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4480 | |
df3a023b AM |
4481 | if ((abfd->flags & D_PAGED) != 0 |
4482 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4483 | { | |
4484 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4485 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4486 | for (s = abfd->sections; s != NULL; s = s->next) | |
4487 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4488 | { | |
4489 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4490 | { | |
4491 | _bfd_error_handler | |
4492 | /* xgettext:c-format */ | |
4493 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4494 | "sh_info field: %d"), | |
4495 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4496 | continue; | |
4497 | } | |
4498 | /* Align mbind section to page size. */ | |
4499 | if (s->alignment_power < page_align_power) | |
4500 | s->alignment_power = page_align_power; | |
4501 | segs ++; | |
4502 | } | |
4503 | } | |
4504 | ||
4505 | /* Let the backend count up any program headers it might need. */ | |
4506 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4507 | { |
4508 | int a; | |
4509 | ||
4510 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4511 | if (a == -1) | |
4512 | abort (); | |
4513 | segs += a; | |
4514 | } | |
4515 | ||
4516 | return segs * bed->s->sizeof_phdr; | |
4517 | } | |
4518 | ||
2ea37f1c NC |
4519 | /* Find the segment that contains the output_section of section. */ |
4520 | ||
4521 | Elf_Internal_Phdr * | |
4522 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4523 | { | |
4524 | struct elf_segment_map *m; | |
4525 | Elf_Internal_Phdr *p; | |
4526 | ||
12bd6957 | 4527 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4528 | m != NULL; |
4529 | m = m->next, p++) | |
4530 | { | |
4531 | int i; | |
4532 | ||
4533 | for (i = m->count - 1; i >= 0; i--) | |
4534 | if (m->sections[i] == section) | |
4535 | return p; | |
4536 | } | |
4537 | ||
4538 | return NULL; | |
4539 | } | |
4540 | ||
252b5132 RH |
4541 | /* Create a mapping from a set of sections to a program segment. */ |
4542 | ||
217aa764 AM |
4543 | static struct elf_segment_map * |
4544 | make_mapping (bfd *abfd, | |
4545 | asection **sections, | |
4546 | unsigned int from, | |
4547 | unsigned int to, | |
4548 | bfd_boolean phdr) | |
252b5132 RH |
4549 | { |
4550 | struct elf_segment_map *m; | |
4551 | unsigned int i; | |
4552 | asection **hdrpp; | |
dc810e39 | 4553 | bfd_size_type amt; |
252b5132 | 4554 | |
00bee008 AM |
4555 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4556 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4557 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4558 | if (m == NULL) |
4559 | return NULL; | |
4560 | m->next = NULL; | |
4561 | m->p_type = PT_LOAD; | |
4562 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4563 | m->sections[i - from] = *hdrpp; | |
4564 | m->count = to - from; | |
4565 | ||
4566 | if (from == 0 && phdr) | |
4567 | { | |
4568 | /* Include the headers in the first PT_LOAD segment. */ | |
4569 | m->includes_filehdr = 1; | |
4570 | m->includes_phdrs = 1; | |
4571 | } | |
4572 | ||
4573 | return m; | |
4574 | } | |
4575 | ||
229fcec5 MM |
4576 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4577 | on failure. */ | |
4578 | ||
4579 | struct elf_segment_map * | |
4580 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4581 | { | |
4582 | struct elf_segment_map *m; | |
4583 | ||
a50b1753 | 4584 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4585 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4586 | if (m == NULL) |
4587 | return NULL; | |
4588 | m->next = NULL; | |
4589 | m->p_type = PT_DYNAMIC; | |
4590 | m->count = 1; | |
4591 | m->sections[0] = dynsec; | |
08a40648 | 4592 | |
229fcec5 MM |
4593 | return m; |
4594 | } | |
4595 | ||
8ded5a0f | 4596 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4597 | |
b34976b6 | 4598 | static bfd_boolean |
3dea8fca AM |
4599 | elf_modify_segment_map (bfd *abfd, |
4600 | struct bfd_link_info *info, | |
4601 | bfd_boolean remove_empty_load) | |
252b5132 | 4602 | { |
252e386e | 4603 | struct elf_segment_map **m; |
8ded5a0f | 4604 | const struct elf_backend_data *bed; |
252b5132 | 4605 | |
8ded5a0f AM |
4606 | /* The placement algorithm assumes that non allocated sections are |
4607 | not in PT_LOAD segments. We ensure this here by removing such | |
4608 | sections from the segment map. We also remove excluded | |
252e386e AM |
4609 | sections. Finally, any PT_LOAD segment without sections is |
4610 | removed. */ | |
12bd6957 | 4611 | m = &elf_seg_map (abfd); |
252e386e | 4612 | while (*m) |
8ded5a0f AM |
4613 | { |
4614 | unsigned int i, new_count; | |
252b5132 | 4615 | |
252e386e | 4616 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4617 | { |
252e386e AM |
4618 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4619 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4620 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4621 | { |
252e386e AM |
4622 | (*m)->sections[new_count] = (*m)->sections[i]; |
4623 | new_count++; | |
8ded5a0f AM |
4624 | } |
4625 | } | |
252e386e | 4626 | (*m)->count = new_count; |
252b5132 | 4627 | |
1a9ccd70 NC |
4628 | if (remove_empty_load |
4629 | && (*m)->p_type == PT_LOAD | |
4630 | && (*m)->count == 0 | |
4631 | && !(*m)->includes_phdrs) | |
252e386e AM |
4632 | *m = (*m)->next; |
4633 | else | |
4634 | m = &(*m)->next; | |
8ded5a0f | 4635 | } |
252b5132 | 4636 | |
8ded5a0f AM |
4637 | bed = get_elf_backend_data (abfd); |
4638 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4639 | { |
252e386e | 4640 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4641 | return FALSE; |
252b5132 | 4642 | } |
252b5132 | 4643 | |
8ded5a0f AM |
4644 | return TRUE; |
4645 | } | |
252b5132 | 4646 | |
dbc88fc1 AM |
4647 | #define IS_TBSS(s) \ |
4648 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4649 | ||
8ded5a0f | 4650 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4651 | |
8ded5a0f AM |
4652 | bfd_boolean |
4653 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4654 | { | |
4655 | unsigned int count; | |
4656 | struct elf_segment_map *m; | |
4657 | asection **sections = NULL; | |
4658 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4659 | bfd_boolean no_user_phdrs; |
252b5132 | 4660 | |
12bd6957 | 4661 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4662 | |
4663 | if (info != NULL) | |
4664 | info->user_phdrs = !no_user_phdrs; | |
4665 | ||
3dea8fca | 4666 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4667 | { |
8ded5a0f AM |
4668 | asection *s; |
4669 | unsigned int i; | |
4670 | struct elf_segment_map *mfirst; | |
4671 | struct elf_segment_map **pm; | |
4672 | asection *last_hdr; | |
4673 | bfd_vma last_size; | |
00bee008 | 4674 | unsigned int hdr_index; |
8ded5a0f AM |
4675 | bfd_vma maxpagesize; |
4676 | asection **hdrpp; | |
64029e93 | 4677 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4678 | bfd_boolean writable; |
2888249f | 4679 | bfd_boolean executable; |
8ded5a0f AM |
4680 | int tls_count = 0; |
4681 | asection *first_tls = NULL; | |
a91e1603 | 4682 | asection *first_mbind = NULL; |
8ded5a0f AM |
4683 | asection *dynsec, *eh_frame_hdr; |
4684 | bfd_size_type amt; | |
8d06853e | 4685 | bfd_vma addr_mask, wrap_to = 0; |
64029e93 | 4686 | bfd_size_type phdr_size; |
252b5132 | 4687 | |
8ded5a0f | 4688 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4689 | |
a50b1753 | 4690 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
07d6d2b8 | 4691 | sizeof (asection *)); |
8ded5a0f | 4692 | if (sections == NULL) |
252b5132 | 4693 | goto error_return; |
252b5132 | 4694 | |
8d06853e AM |
4695 | /* Calculate top address, avoiding undefined behaviour of shift |
4696 | left operator when shift count is equal to size of type | |
4697 | being shifted. */ | |
4698 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4699 | addr_mask = (addr_mask << 1) + 1; | |
4700 | ||
8ded5a0f AM |
4701 | i = 0; |
4702 | for (s = abfd->sections; s != NULL; s = s->next) | |
4703 | { | |
4704 | if ((s->flags & SEC_ALLOC) != 0) | |
4705 | { | |
4706 | sections[i] = s; | |
4707 | ++i; | |
8d06853e AM |
4708 | /* A wrapping section potentially clashes with header. */ |
4709 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4710 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4711 | } |
4712 | } | |
4713 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4714 | count = i; | |
252b5132 | 4715 | |
8ded5a0f | 4716 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4717 | |
64029e93 AM |
4718 | phdr_size = elf_program_header_size (abfd); |
4719 | if (phdr_size == (bfd_size_type) -1) | |
4720 | phdr_size = get_program_header_size (abfd, info); | |
4721 | phdr_size += bed->s->sizeof_ehdr; | |
4722 | maxpagesize = bed->maxpagesize; | |
4723 | if (maxpagesize == 0) | |
4724 | maxpagesize = 1; | |
4725 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4726 | if (count != 0 | |
4727 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4728 | >= (phdr_size & (maxpagesize - 1)))) | |
4729 | /* For compatibility with old scripts that may not be using | |
4730 | SIZEOF_HEADERS, add headers when it looks like space has | |
4731 | been left for them. */ | |
4732 | phdr_in_segment = TRUE; | |
252b5132 | 4733 | |
64029e93 | 4734 | /* Build the mapping. */ |
8ded5a0f AM |
4735 | mfirst = NULL; |
4736 | pm = &mfirst; | |
252b5132 | 4737 | |
8ded5a0f AM |
4738 | /* If we have a .interp section, then create a PT_PHDR segment for |
4739 | the program headers and a PT_INTERP segment for the .interp | |
4740 | section. */ | |
4741 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4742 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4743 | { |
4744 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4745 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4746 | if (m == NULL) |
4747 | goto error_return; | |
4748 | m->next = NULL; | |
4749 | m->p_type = PT_PHDR; | |
f882209d | 4750 | m->p_flags = PF_R; |
8ded5a0f AM |
4751 | m->p_flags_valid = 1; |
4752 | m->includes_phdrs = 1; | |
64029e93 | 4753 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4754 | *pm = m; |
4755 | pm = &m->next; | |
252b5132 | 4756 | |
8ded5a0f | 4757 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4758 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4759 | if (m == NULL) |
4760 | goto error_return; | |
4761 | m->next = NULL; | |
4762 | m->p_type = PT_INTERP; | |
4763 | m->count = 1; | |
4764 | m->sections[0] = s; | |
4765 | ||
4766 | *pm = m; | |
4767 | pm = &m->next; | |
252b5132 | 4768 | } |
8ded5a0f AM |
4769 | |
4770 | /* Look through the sections. We put sections in the same program | |
4771 | segment when the start of the second section can be placed within | |
4772 | a few bytes of the end of the first section. */ | |
4773 | last_hdr = NULL; | |
4774 | last_size = 0; | |
00bee008 | 4775 | hdr_index = 0; |
8ded5a0f | 4776 | writable = FALSE; |
2888249f | 4777 | executable = FALSE; |
8ded5a0f AM |
4778 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4779 | if (dynsec != NULL | |
4780 | && (dynsec->flags & SEC_LOAD) == 0) | |
4781 | dynsec = NULL; | |
4782 | ||
64029e93 AM |
4783 | if ((abfd->flags & D_PAGED) == 0) |
4784 | phdr_in_segment = FALSE; | |
4785 | ||
8ded5a0f AM |
4786 | /* Deal with -Ttext or something similar such that the first section |
4787 | is not adjacent to the program headers. This is an | |
4788 | approximation, since at this point we don't know exactly how many | |
4789 | program headers we will need. */ | |
64029e93 | 4790 | if (phdr_in_segment && count > 0) |
252b5132 | 4791 | { |
64029e93 AM |
4792 | bfd_vma phdr_lma; |
4793 | bfd_boolean separate_phdr = FALSE; | |
4794 | ||
4795 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4796 | if (info != NULL | |
4797 | && info->separate_code | |
4798 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4799 | { |
64029e93 AM |
4800 | /* If data sections should be separate from code and |
4801 | thus not executable, and the first section is | |
4802 | executable then put the file and program headers in | |
4803 | their own PT_LOAD. */ | |
4804 | separate_phdr = TRUE; | |
4805 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4806 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4807 | { | |
4808 | /* The file and program headers are currently on the | |
4809 | same page as the first section. Put them on the | |
4810 | previous page if we can. */ | |
4811 | if (phdr_lma >= maxpagesize) | |
4812 | phdr_lma -= maxpagesize; | |
4813 | else | |
4814 | separate_phdr = FALSE; | |
4815 | } | |
4816 | } | |
4817 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4818 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4819 | /* If file and program headers would be placed at the end | |
4820 | of memory then it's probably better to omit them. */ | |
4821 | phdr_in_segment = FALSE; | |
4822 | else if (phdr_lma < wrap_to) | |
4823 | /* If a section wraps around to where we'll be placing | |
4824 | file and program headers, then the headers will be | |
4825 | overwritten. */ | |
4826 | phdr_in_segment = FALSE; | |
4827 | else if (separate_phdr) | |
4828 | { | |
4829 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4830 | if (m == NULL) | |
4831 | goto error_return; | |
4832 | m->p_paddr = phdr_lma; | |
4833 | m->p_vaddr_offset | |
4834 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4835 | m->p_paddr_valid = 1; | |
4836 | *pm = m; | |
4837 | pm = &m->next; | |
4838 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4839 | } |
252b5132 RH |
4840 | } |
4841 | ||
8ded5a0f | 4842 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4843 | { |
8ded5a0f AM |
4844 | asection *hdr; |
4845 | bfd_boolean new_segment; | |
4846 | ||
4847 | hdr = *hdrpp; | |
4848 | ||
4849 | /* See if this section and the last one will fit in the same | |
4850 | segment. */ | |
4851 | ||
4852 | if (last_hdr == NULL) | |
4853 | { | |
4854 | /* If we don't have a segment yet, then we don't need a new | |
4855 | one (we build the last one after this loop). */ | |
4856 | new_segment = FALSE; | |
4857 | } | |
4858 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4859 | { | |
4860 | /* If this section has a different relation between the | |
4861 | virtual address and the load address, then we need a new | |
4862 | segment. */ | |
4863 | new_segment = TRUE; | |
4864 | } | |
b5599592 AM |
4865 | else if (hdr->lma < last_hdr->lma + last_size |
4866 | || last_hdr->lma + last_size < last_hdr->lma) | |
4867 | { | |
4868 | /* If this section has a load address that makes it overlap | |
4869 | the previous section, then we need a new segment. */ | |
4870 | new_segment = TRUE; | |
4871 | } | |
76cb3a89 AM |
4872 | else if ((abfd->flags & D_PAGED) != 0 |
4873 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4874 | == (hdr->lma & -maxpagesize))) | |
4875 | { | |
4876 | /* If we are demand paged then we can't map two disk | |
4877 | pages onto the same memory page. */ | |
4878 | new_segment = FALSE; | |
4879 | } | |
39948a60 NC |
4880 | /* In the next test we have to be careful when last_hdr->lma is close |
4881 | to the end of the address space. If the aligned address wraps | |
4882 | around to the start of the address space, then there are no more | |
4883 | pages left in memory and it is OK to assume that the current | |
4884 | section can be included in the current segment. */ | |
76cb3a89 AM |
4885 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4886 | + maxpagesize > last_hdr->lma) | |
4887 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4888 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4889 | { |
4890 | /* If putting this section in this segment would force us to | |
4891 | skip a page in the segment, then we need a new segment. */ | |
4892 | new_segment = TRUE; | |
4893 | } | |
4894 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4895 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4896 | { |
e5654c0f AM |
4897 | /* We don't want to put a loaded section after a |
4898 | nonloaded (ie. bss style) section in the same segment | |
4899 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4900 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4901 | new_segment = TRUE; |
4902 | } | |
4903 | else if ((abfd->flags & D_PAGED) == 0) | |
4904 | { | |
4905 | /* If the file is not demand paged, which means that we | |
4906 | don't require the sections to be correctly aligned in the | |
4907 | file, then there is no other reason for a new segment. */ | |
4908 | new_segment = FALSE; | |
4909 | } | |
2888249f L |
4910 | else if (info != NULL |
4911 | && info->separate_code | |
4912 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4913 | { | |
4914 | new_segment = TRUE; | |
4915 | } | |
8ded5a0f | 4916 | else if (! writable |
76cb3a89 | 4917 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4918 | { |
4919 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4920 | segment. */ |
8ded5a0f AM |
4921 | new_segment = TRUE; |
4922 | } | |
4923 | else | |
4924 | { | |
4925 | /* Otherwise, we can use the same segment. */ | |
4926 | new_segment = FALSE; | |
4927 | } | |
4928 | ||
2889e75b | 4929 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4930 | if (last_hdr != NULL |
4931 | && info != NULL | |
4932 | && info->callbacks->override_segment_assignment != NULL) | |
4933 | new_segment | |
4934 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4935 | last_hdr, | |
4936 | new_segment); | |
2889e75b | 4937 | |
8ded5a0f AM |
4938 | if (! new_segment) |
4939 | { | |
4940 | if ((hdr->flags & SEC_READONLY) == 0) | |
4941 | writable = TRUE; | |
2888249f L |
4942 | if ((hdr->flags & SEC_CODE) != 0) |
4943 | executable = TRUE; | |
8ded5a0f AM |
4944 | last_hdr = hdr; |
4945 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4946 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4947 | continue; |
4948 | } | |
4949 | ||
4950 | /* We need a new program segment. We must create a new program | |
00bee008 | 4951 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4952 | |
00bee008 | 4953 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4954 | if (m == NULL) |
4955 | goto error_return; | |
4956 | ||
4957 | *pm = m; | |
4958 | pm = &m->next; | |
4959 | ||
252b5132 | 4960 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4961 | writable = TRUE; |
8ded5a0f AM |
4962 | else |
4963 | writable = FALSE; | |
4964 | ||
2888249f L |
4965 | if ((hdr->flags & SEC_CODE) == 0) |
4966 | executable = FALSE; | |
4967 | else | |
4968 | executable = TRUE; | |
4969 | ||
baaff79e JJ |
4970 | last_hdr = hdr; |
4971 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4972 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
00bee008 | 4973 | hdr_index = i; |
8ded5a0f | 4974 | phdr_in_segment = FALSE; |
252b5132 RH |
4975 | } |
4976 | ||
86b2281f AM |
4977 | /* Create a final PT_LOAD program segment, but not if it's just |
4978 | for .tbss. */ | |
4979 | if (last_hdr != NULL | |
00bee008 | 4980 | && (i - hdr_index != 1 |
dbc88fc1 | 4981 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4982 | { |
00bee008 | 4983 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4984 | if (m == NULL) |
4985 | goto error_return; | |
252b5132 | 4986 | |
8ded5a0f AM |
4987 | *pm = m; |
4988 | pm = &m->next; | |
4989 | } | |
252b5132 | 4990 | |
8ded5a0f AM |
4991 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4992 | if (dynsec != NULL) | |
4993 | { | |
4994 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4995 | if (m == NULL) | |
4996 | goto error_return; | |
4997 | *pm = m; | |
4998 | pm = &m->next; | |
4999 | } | |
252b5132 | 5000 | |
23e463ed | 5001 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
5002 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
5003 | because if we link together nonloadable .note sections and | |
5004 | loadable .note sections, we will generate two .note sections | |
23e463ed | 5005 | in the output file. */ |
8ded5a0f AM |
5006 | for (s = abfd->sections; s != NULL; s = s->next) |
5007 | { | |
5008 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 5009 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 5010 | { |
1c5265b5 | 5011 | asection *s2; |
23e463ed | 5012 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
5013 | |
5014 | count = 1; | |
23e463ed L |
5015 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
5016 | { | |
5017 | if (s2->next->alignment_power == alignment_power | |
5018 | && (s2->next->flags & SEC_LOAD) != 0 | |
5019 | && elf_section_type (s2->next) == SHT_NOTE | |
5020 | && align_power (s2->lma + s2->size, | |
5021 | alignment_power) | |
5022 | == s2->next->lma) | |
5023 | count++; | |
5024 | else | |
5025 | break; | |
5026 | } | |
00bee008 AM |
5027 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5028 | amt += count * sizeof (asection *); | |
a50b1753 | 5029 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5030 | if (m == NULL) |
5031 | goto error_return; | |
5032 | m->next = NULL; | |
5033 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5034 | m->count = count; |
5035 | while (count > 1) | |
5036 | { | |
5037 | m->sections[m->count - count--] = s; | |
5038 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5039 | s = s->next; | |
5040 | } | |
5041 | m->sections[m->count - 1] = s; | |
5042 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5043 | *pm = m; |
5044 | pm = &m->next; | |
5045 | } | |
5046 | if (s->flags & SEC_THREAD_LOCAL) | |
5047 | { | |
5048 | if (! tls_count) | |
5049 | first_tls = s; | |
5050 | tls_count++; | |
5051 | } | |
a91e1603 L |
5052 | if (first_mbind == NULL |
5053 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5054 | first_mbind = s; | |
8ded5a0f | 5055 | } |
252b5132 | 5056 | |
8ded5a0f AM |
5057 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5058 | if (tls_count > 0) | |
5059 | { | |
00bee008 AM |
5060 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5061 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5062 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5063 | if (m == NULL) |
5064 | goto error_return; | |
5065 | m->next = NULL; | |
5066 | m->p_type = PT_TLS; | |
5067 | m->count = tls_count; | |
5068 | /* Mandated PF_R. */ | |
5069 | m->p_flags = PF_R; | |
5070 | m->p_flags_valid = 1; | |
d923cae0 | 5071 | s = first_tls; |
91d6fa6a | 5072 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 5073 | { |
d923cae0 L |
5074 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5075 | { | |
5076 | _bfd_error_handler | |
871b3ab2 | 5077 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5078 | s = first_tls; |
5079 | i = 0; | |
5080 | while (i < (unsigned int) tls_count) | |
5081 | { | |
5082 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5083 | { | |
871b3ab2 | 5084 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5085 | i++; |
5086 | } | |
5087 | else | |
871b3ab2 | 5088 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5089 | s = s->next; |
5090 | } | |
5091 | bfd_set_error (bfd_error_bad_value); | |
5092 | goto error_return; | |
5093 | } | |
5094 | m->sections[i] = s; | |
5095 | s = s->next; | |
8ded5a0f | 5096 | } |
252b5132 | 5097 | |
8ded5a0f AM |
5098 | *pm = m; |
5099 | pm = &m->next; | |
5100 | } | |
252b5132 | 5101 | |
df3a023b AM |
5102 | if (first_mbind |
5103 | && (abfd->flags & D_PAGED) != 0 | |
5104 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5105 | for (s = first_mbind; s != NULL; s = s->next) |
5106 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5107 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5108 | { |
5109 | /* Mandated PF_R. */ | |
5110 | unsigned long p_flags = PF_R; | |
5111 | if ((s->flags & SEC_READONLY) == 0) | |
5112 | p_flags |= PF_W; | |
5113 | if ((s->flags & SEC_CODE) != 0) | |
5114 | p_flags |= PF_X; | |
5115 | ||
5116 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5117 | m = bfd_zalloc (abfd, amt); | |
5118 | if (m == NULL) | |
5119 | goto error_return; | |
5120 | m->next = NULL; | |
5121 | m->p_type = (PT_GNU_MBIND_LO | |
5122 | + elf_section_data (s)->this_hdr.sh_info); | |
5123 | m->count = 1; | |
5124 | m->p_flags_valid = 1; | |
5125 | m->sections[0] = s; | |
5126 | m->p_flags = p_flags; | |
5127 | ||
5128 | *pm = m; | |
5129 | pm = &m->next; | |
5130 | } | |
5131 | ||
0a59decb L |
5132 | s = bfd_get_section_by_name (abfd, |
5133 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5134 | if (s != NULL && s->size != 0) | |
5135 | { | |
5136 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5137 | m = bfd_zalloc (abfd, amt); | |
5138 | if (m == NULL) | |
5139 | goto error_return; | |
5140 | m->next = NULL; | |
5141 | m->p_type = PT_GNU_PROPERTY; | |
5142 | m->count = 1; | |
5143 | m->p_flags_valid = 1; | |
5144 | m->sections[0] = s; | |
5145 | m->p_flags = PF_R; | |
5146 | *pm = m; | |
5147 | pm = &m->next; | |
5148 | } | |
5149 | ||
8ded5a0f AM |
5150 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5151 | segment. */ | |
12bd6957 | 5152 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5153 | if (eh_frame_hdr != NULL |
5154 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5155 | { |
dc810e39 | 5156 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5157 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5158 | if (m == NULL) |
5159 | goto error_return; | |
5160 | m->next = NULL; | |
8ded5a0f | 5161 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5162 | m->count = 1; |
8ded5a0f | 5163 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5164 | |
5165 | *pm = m; | |
5166 | pm = &m->next; | |
5167 | } | |
13ae64f3 | 5168 | |
12bd6957 | 5169 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5170 | { |
8ded5a0f | 5171 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5172 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5173 | if (m == NULL) |
5174 | goto error_return; | |
5175 | m->next = NULL; | |
2b05f1b7 | 5176 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5177 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5178 | m->p_align = bed->stack_align; |
8ded5a0f | 5179 | m->p_flags_valid = 1; |
04c3a755 NS |
5180 | m->p_align_valid = m->p_align != 0; |
5181 | if (info->stacksize > 0) | |
5182 | { | |
5183 | m->p_size = info->stacksize; | |
5184 | m->p_size_valid = 1; | |
5185 | } | |
252b5132 | 5186 | |
8ded5a0f AM |
5187 | *pm = m; |
5188 | pm = &m->next; | |
5189 | } | |
65765700 | 5190 | |
ceae84aa | 5191 | if (info != NULL && info->relro) |
8ded5a0f | 5192 | { |
f210dcff L |
5193 | for (m = mfirst; m != NULL; m = m->next) |
5194 | { | |
3832a4d8 AM |
5195 | if (m->p_type == PT_LOAD |
5196 | && m->count != 0 | |
5197 | && m->sections[0]->vma >= info->relro_start | |
5198 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5199 | { |
3832a4d8 AM |
5200 | i = m->count; |
5201 | while (--i != (unsigned) -1) | |
5202 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5203 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5204 | break; | |
5205 | ||
43a8475c | 5206 | if (i != (unsigned) -1) |
f210dcff L |
5207 | break; |
5208 | } | |
be01b344 | 5209 | } |
f210dcff L |
5210 | |
5211 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5212 | if (m != NULL) | |
5213 | { | |
5214 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5215 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5216 | if (m == NULL) |
5217 | goto error_return; | |
5218 | m->next = NULL; | |
5219 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5220 | *pm = m; |
5221 | pm = &m->next; | |
5222 | } | |
8ded5a0f | 5223 | } |
9ee5e499 | 5224 | |
8ded5a0f | 5225 | free (sections); |
12bd6957 | 5226 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5227 | } |
5228 | ||
3dea8fca | 5229 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5230 | return FALSE; |
8c37241b | 5231 | |
12bd6957 | 5232 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5233 | ++count; |
12bd6957 | 5234 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5235 | |
b34976b6 | 5236 | return TRUE; |
252b5132 RH |
5237 | |
5238 | error_return: | |
5239 | if (sections != NULL) | |
5240 | free (sections); | |
b34976b6 | 5241 | return FALSE; |
252b5132 RH |
5242 | } |
5243 | ||
5244 | /* Sort sections by address. */ | |
5245 | ||
5246 | static int | |
217aa764 | 5247 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5248 | { |
5249 | const asection *sec1 = *(const asection **) arg1; | |
5250 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5251 | bfd_size_type size1, size2; |
252b5132 RH |
5252 | |
5253 | /* Sort by LMA first, since this is the address used to | |
5254 | place the section into a segment. */ | |
5255 | if (sec1->lma < sec2->lma) | |
5256 | return -1; | |
5257 | else if (sec1->lma > sec2->lma) | |
5258 | return 1; | |
5259 | ||
5260 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5261 | the same, and this will do nothing. */ | |
5262 | if (sec1->vma < sec2->vma) | |
5263 | return -1; | |
5264 | else if (sec1->vma > sec2->vma) | |
5265 | return 1; | |
5266 | ||
5267 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5268 | ||
07c6e936 | 5269 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5270 | |
5271 | if (TOEND (sec1)) | |
5272 | { | |
5273 | if (TOEND (sec2)) | |
00a7cdc5 | 5274 | { |
67ce483b | 5275 | /* If the indices are the same, do not return 0 |
00a7cdc5 NC |
5276 | here, but continue to try the next comparison. */ |
5277 | if (sec1->target_index - sec2->target_index != 0) | |
5278 | return sec1->target_index - sec2->target_index; | |
5279 | } | |
252b5132 RH |
5280 | else |
5281 | return 1; | |
5282 | } | |
00a7cdc5 | 5283 | else if (TOEND (sec2)) |
252b5132 RH |
5284 | return -1; |
5285 | ||
5286 | #undef TOEND | |
5287 | ||
00a7cdc5 NC |
5288 | /* Sort by size, to put zero sized sections |
5289 | before others at the same address. */ | |
252b5132 | 5290 | |
eea6121a AM |
5291 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5292 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5293 | |
5294 | if (size1 < size2) | |
252b5132 | 5295 | return -1; |
eecdbe52 | 5296 | if (size1 > size2) |
252b5132 RH |
5297 | return 1; |
5298 | ||
5299 | return sec1->target_index - sec2->target_index; | |
5300 | } | |
5301 | ||
340b6d91 AC |
5302 | /* Ian Lance Taylor writes: |
5303 | ||
5304 | We shouldn't be using % with a negative signed number. That's just | |
5305 | not good. We have to make sure either that the number is not | |
5306 | negative, or that the number has an unsigned type. When the types | |
5307 | are all the same size they wind up as unsigned. When file_ptr is a | |
5308 | larger signed type, the arithmetic winds up as signed long long, | |
5309 | which is wrong. | |
5310 | ||
5311 | What we're trying to say here is something like ``increase OFF by | |
5312 | the least amount that will cause it to be equal to the VMA modulo | |
5313 | the page size.'' */ | |
5314 | /* In other words, something like: | |
5315 | ||
5316 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5317 | off_offset = off % bed->maxpagesize; | |
5318 | if (vma_offset < off_offset) | |
5319 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5320 | else | |
5321 | adjustment = vma_offset - off_offset; | |
08a40648 | 5322 | |
de194d85 | 5323 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5324 | |
5325 | static file_ptr | |
5326 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5327 | { | |
dc9155b2 NC |
5328 | /* PR binutils/16199: Handle an alignment of zero. */ |
5329 | if (maxpagesize == 0) | |
5330 | maxpagesize = 1; | |
340b6d91 AC |
5331 | return ((vma - off) % maxpagesize); |
5332 | } | |
5333 | ||
6d33f217 L |
5334 | static void |
5335 | print_segment_map (const struct elf_segment_map *m) | |
5336 | { | |
5337 | unsigned int j; | |
5338 | const char *pt = get_segment_type (m->p_type); | |
5339 | char buf[32]; | |
5340 | ||
5341 | if (pt == NULL) | |
5342 | { | |
5343 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5344 | sprintf (buf, "LOPROC+%7.7x", | |
5345 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5346 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5347 | sprintf (buf, "LOOS+%7.7x", | |
5348 | (unsigned int) (m->p_type - PT_LOOS)); | |
5349 | else | |
5350 | snprintf (buf, sizeof (buf), "%8.8x", | |
5351 | (unsigned int) m->p_type); | |
5352 | pt = buf; | |
5353 | } | |
4a97a0e5 | 5354 | fflush (stdout); |
6d33f217 L |
5355 | fprintf (stderr, "%s:", pt); |
5356 | for (j = 0; j < m->count; j++) | |
5357 | fprintf (stderr, " %s", m->sections [j]->name); | |
5358 | putc ('\n',stderr); | |
4a97a0e5 | 5359 | fflush (stderr); |
6d33f217 L |
5360 | } |
5361 | ||
32812159 AM |
5362 | static bfd_boolean |
5363 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5364 | { | |
5365 | void *buf; | |
5366 | bfd_boolean ret; | |
5367 | ||
5368 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5369 | return FALSE; | |
5370 | buf = bfd_zmalloc (len); | |
5371 | if (buf == NULL) | |
5372 | return FALSE; | |
5373 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5374 | free (buf); | |
5375 | return ret; | |
5376 | } | |
5377 | ||
252b5132 RH |
5378 | /* Assign file positions to the sections based on the mapping from |
5379 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5380 | the file header. */ |
252b5132 | 5381 | |
b34976b6 | 5382 | static bfd_boolean |
f3520d2f AM |
5383 | assign_file_positions_for_load_sections (bfd *abfd, |
5384 | struct bfd_link_info *link_info) | |
252b5132 RH |
5385 | { |
5386 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5387 | struct elf_segment_map *m; |
252b5132 | 5388 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5389 | Elf_Internal_Phdr *p; |
02bf8d82 | 5390 | file_ptr off; |
3f570048 | 5391 | bfd_size_type maxpagesize; |
a8c75b76 | 5392 | unsigned int pt_load_count = 0; |
f3520d2f | 5393 | unsigned int alloc; |
0920dee7 | 5394 | unsigned int i, j; |
2b0bc088 | 5395 | bfd_vma header_pad = 0; |
252b5132 | 5396 | |
e36284ab | 5397 | if (link_info == NULL |
ceae84aa | 5398 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5399 | return FALSE; |
252b5132 | 5400 | |
8ded5a0f | 5401 | alloc = 0; |
12bd6957 | 5402 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
5403 | { |
5404 | ++alloc; | |
5405 | if (m->header_size) | |
5406 | header_pad = m->header_size; | |
5407 | } | |
252b5132 | 5408 | |
82f2dbf7 NC |
5409 | if (alloc) |
5410 | { | |
5411 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5412 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5413 | } | |
5414 | else | |
5415 | { | |
5416 | /* PR binutils/12467. */ | |
5417 | elf_elfheader (abfd)->e_phoff = 0; | |
5418 | elf_elfheader (abfd)->e_phentsize = 0; | |
5419 | } | |
d324f6d6 | 5420 | |
8ded5a0f | 5421 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5422 | |
12bd6957 AM |
5423 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
5424 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 5425 | else |
12bd6957 | 5426 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 5427 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
5428 | |
5429 | if (alloc == 0) | |
f3520d2f | 5430 | { |
12bd6957 | 5431 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5432 | return TRUE; |
f3520d2f | 5433 | } |
252b5132 | 5434 | |
12bd6957 | 5435 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5436 | see assign_file_positions_except_relocs, so make sure we have |
5437 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5438 | The variable alloc contains the computed need, while |
5439 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5440 | layout. |
5441 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5442 | where the layout is forced to according to a larger size in the | |
5443 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 5444 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 5445 | == 0); |
a50b1753 NC |
5446 | phdrs = (Elf_Internal_Phdr *) |
5447 | bfd_zalloc2 (abfd, | |
07d6d2b8 AM |
5448 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
5449 | sizeof (Elf_Internal_Phdr)); | |
f3520d2f | 5450 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5451 | if (phdrs == NULL) |
b34976b6 | 5452 | return FALSE; |
252b5132 | 5453 | |
3f570048 AM |
5454 | maxpagesize = 1; |
5455 | if ((abfd->flags & D_PAGED) != 0) | |
5456 | maxpagesize = bed->maxpagesize; | |
5457 | ||
252b5132 RH |
5458 | off = bed->s->sizeof_ehdr; |
5459 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5460 | if (header_pad < (bfd_vma) off) |
5461 | header_pad = 0; | |
5462 | else | |
5463 | header_pad -= off; | |
5464 | off += header_pad; | |
252b5132 | 5465 | |
12bd6957 | 5466 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 5467 | m != NULL; |
0920dee7 | 5468 | m = m->next, p++, j++) |
252b5132 | 5469 | { |
252b5132 | 5470 | asection **secpp; |
bf988460 AM |
5471 | bfd_vma off_adjust; |
5472 | bfd_boolean no_contents; | |
252b5132 RH |
5473 | |
5474 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 5475 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5476 | not be done to the PT_NOTE section of a corefile, which may |
5477 | contain several pseudo-sections artificially created by bfd. | |
5478 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5479 | if (m->count > 1 |
5480 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5481 | && m->p_type == PT_NOTE)) |
252b5132 RH |
5482 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
5483 | elf_sort_sections); | |
5484 | ||
b301b248 AM |
5485 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5486 | number of sections with contents contributing to both p_filesz | |
5487 | and p_memsz, followed by a number of sections with no contents | |
5488 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5489 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 5490 | p->p_type = m->p_type; |
28a7f3e7 | 5491 | p->p_flags = m->p_flags; |
252b5132 | 5492 | |
3f570048 | 5493 | if (m->count == 0) |
5d695627 | 5494 | p->p_vaddr = m->p_vaddr_offset; |
3f570048 | 5495 | else |
5d695627 | 5496 | p->p_vaddr = m->sections[0]->vma + m->p_vaddr_offset; |
3f570048 AM |
5497 | |
5498 | if (m->p_paddr_valid) | |
5499 | p->p_paddr = m->p_paddr; | |
5500 | else if (m->count == 0) | |
5501 | p->p_paddr = 0; | |
5502 | else | |
5d695627 | 5503 | p->p_paddr = m->sections[0]->lma + m->p_vaddr_offset; |
3f570048 AM |
5504 | |
5505 | if (p->p_type == PT_LOAD | |
5506 | && (abfd->flags & D_PAGED) != 0) | |
5507 | { | |
5508 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5509 | the maximum page size. When copying an executable with | |
5510 | objcopy, we set m->p_align from the input file. Use this | |
5511 | value for maxpagesize rather than bed->maxpagesize, which | |
5512 | may be different. Note that we use maxpagesize for PT_TLS | |
5513 | segment alignment later in this function, so we are relying | |
5514 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5515 | segment. */ | |
5516 | if (m->p_align_valid) | |
5517 | maxpagesize = m->p_align; | |
5518 | ||
5519 | p->p_align = maxpagesize; | |
a8c75b76 | 5520 | pt_load_count += 1; |
3f570048 | 5521 | } |
3271a814 NS |
5522 | else if (m->p_align_valid) |
5523 | p->p_align = m->p_align; | |
e970b90a DJ |
5524 | else if (m->count == 0) |
5525 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
5526 | else |
5527 | p->p_align = 0; | |
5528 | ||
bf988460 AM |
5529 | no_contents = FALSE; |
5530 | off_adjust = 0; | |
252b5132 | 5531 | if (p->p_type == PT_LOAD |
b301b248 | 5532 | && m->count > 0) |
252b5132 | 5533 | { |
b301b248 | 5534 | bfd_size_type align; |
a49e53ed | 5535 | unsigned int align_power = 0; |
b301b248 | 5536 | |
3271a814 NS |
5537 | if (m->p_align_valid) |
5538 | align = p->p_align; | |
5539 | else | |
252b5132 | 5540 | { |
3271a814 NS |
5541 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5542 | { | |
5543 | unsigned int secalign; | |
08a40648 | 5544 | |
3271a814 NS |
5545 | secalign = bfd_get_section_alignment (abfd, *secpp); |
5546 | if (secalign > align_power) | |
5547 | align_power = secalign; | |
5548 | } | |
5549 | align = (bfd_size_type) 1 << align_power; | |
5550 | if (align < maxpagesize) | |
5551 | align = maxpagesize; | |
b301b248 | 5552 | } |
252b5132 | 5553 | |
02bf8d82 AM |
5554 | for (i = 0; i < m->count; i++) |
5555 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5556 | /* If we aren't making room for this section, then | |
5557 | it must be SHT_NOBITS regardless of what we've | |
5558 | set via struct bfd_elf_special_section. */ | |
5559 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5560 | ||
bf988460 | 5561 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5562 | sections. */ |
5563 | no_contents = TRUE; | |
5564 | for (i = 0; i < m->count; i++) | |
5565 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5566 | { | |
5567 | no_contents = FALSE; | |
5568 | break; | |
5569 | } | |
bf988460 | 5570 | |
85cfcbfb | 5571 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5572 | |
5573 | /* Broken hardware and/or kernel require that files do not | |
5574 | map the same page with different permissions on some hppa | |
5575 | processors. */ | |
5576 | if (pt_load_count > 1 | |
5577 | && bed->no_page_alias | |
5578 | && (off & (maxpagesize - 1)) != 0 | |
5579 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5580 | off_adjust += maxpagesize; | |
bf988460 AM |
5581 | off += off_adjust; |
5582 | if (no_contents) | |
5583 | { | |
5584 | /* We shouldn't need to align the segment on disk since | |
5585 | the segment doesn't need file space, but the gABI | |
5586 | arguably requires the alignment and glibc ld.so | |
5587 | checks it. So to comply with the alignment | |
5588 | requirement but not waste file space, we adjust | |
5589 | p_offset for just this segment. (OFF_ADJUST is | |
5590 | subtracted from OFF later.) This may put p_offset | |
5591 | past the end of file, but that shouldn't matter. */ | |
5592 | } | |
5593 | else | |
5594 | off_adjust = 0; | |
252b5132 | 5595 | } |
b1a6d0b1 NC |
5596 | /* Make sure the .dynamic section is the first section in the |
5597 | PT_DYNAMIC segment. */ | |
5598 | else if (p->p_type == PT_DYNAMIC | |
5599 | && m->count > 1 | |
5600 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5601 | { | |
5602 | _bfd_error_handler | |
871b3ab2 | 5603 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5604 | " is not the .dynamic section"), |
b301b248 | 5605 | abfd); |
b1a6d0b1 NC |
5606 | bfd_set_error (bfd_error_bad_value); |
5607 | return FALSE; | |
5608 | } | |
3f001e84 JK |
5609 | /* Set the note section type to SHT_NOTE. */ |
5610 | else if (p->p_type == PT_NOTE) | |
5611 | for (i = 0; i < m->count; i++) | |
5612 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5613 | |
252b5132 RH |
5614 | p->p_offset = 0; |
5615 | p->p_filesz = 0; | |
5616 | p->p_memsz = 0; | |
5617 | ||
5618 | if (m->includes_filehdr) | |
5619 | { | |
bf988460 | 5620 | if (!m->p_flags_valid) |
252b5132 | 5621 | p->p_flags |= PF_R; |
252b5132 RH |
5622 | p->p_filesz = bed->s->sizeof_ehdr; |
5623 | p->p_memsz = bed->s->sizeof_ehdr; | |
5624 | if (m->count > 0) | |
5625 | { | |
9ab82472 L |
5626 | if (p->p_vaddr < (bfd_vma) off |
5627 | || (!m->p_paddr_valid | |
5628 | && p->p_paddr < (bfd_vma) off)) | |
252b5132 | 5629 | { |
4eca0228 | 5630 | _bfd_error_handler |
9793eb77 | 5631 | (_("%pB: not enough room for program headers," |
63a5468a | 5632 | " try linking with -N"), |
b301b248 | 5633 | abfd); |
252b5132 | 5634 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 5635 | return FALSE; |
252b5132 RH |
5636 | } |
5637 | ||
5638 | p->p_vaddr -= off; | |
bf988460 | 5639 | if (!m->p_paddr_valid) |
252b5132 RH |
5640 | p->p_paddr -= off; |
5641 | } | |
252b5132 RH |
5642 | } |
5643 | ||
5644 | if (m->includes_phdrs) | |
5645 | { | |
bf988460 | 5646 | if (!m->p_flags_valid) |
252b5132 RH |
5647 | p->p_flags |= PF_R; |
5648 | ||
f3520d2f | 5649 | if (!m->includes_filehdr) |
252b5132 RH |
5650 | { |
5651 | p->p_offset = bed->s->sizeof_ehdr; | |
5652 | ||
5653 | if (m->count > 0) | |
5654 | { | |
252b5132 | 5655 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 5656 | if (!m->p_paddr_valid) |
252b5132 RH |
5657 | p->p_paddr -= off - p->p_offset; |
5658 | } | |
252b5132 RH |
5659 | } |
5660 | ||
5661 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
5662 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5663 | if (m->count) |
5664 | { | |
5665 | p->p_filesz += header_pad; | |
5666 | p->p_memsz += header_pad; | |
5667 | } | |
252b5132 RH |
5668 | } |
5669 | ||
5670 | if (p->p_type == PT_LOAD | |
5671 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5672 | { | |
bf988460 | 5673 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5674 | p->p_offset = off; |
252b5132 RH |
5675 | else |
5676 | { | |
5677 | file_ptr adjust; | |
5678 | ||
5679 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5680 | if (!no_contents) |
5681 | p->p_filesz += adjust; | |
252b5132 RH |
5682 | p->p_memsz += adjust; |
5683 | } | |
5684 | } | |
5685 | ||
1ea63fd2 AM |
5686 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5687 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5688 | core files, for sections in PT_NOTE segments. | |
5689 | assign_file_positions_for_non_load_sections will set filepos | |
5690 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5691 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5692 | { | |
5693 | asection *sec; | |
252b5132 | 5694 | bfd_size_type align; |
627b32bc | 5695 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5696 | |
5697 | sec = *secpp; | |
02bf8d82 | 5698 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 5699 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 5700 | |
88967714 AM |
5701 | if ((p->p_type == PT_LOAD |
5702 | || p->p_type == PT_TLS) | |
5703 | && (this_hdr->sh_type != SHT_NOBITS | |
5704 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5705 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5706 | || p->p_type == PT_TLS)))) | |
252b5132 | 5707 | { |
b5599592 AM |
5708 | bfd_vma p_start = p->p_paddr; |
5709 | bfd_vma p_end = p_start + p->p_memsz; | |
5710 | bfd_vma s_start = sec->lma; | |
5711 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5712 | |
a2d1e028 L |
5713 | if (adjust != 0 |
5714 | && (s_start < p_end | |
5715 | || p_end < p_start)) | |
252b5132 | 5716 | { |
4eca0228 | 5717 | _bfd_error_handler |
695344c0 | 5718 | /* xgettext:c-format */ |
2dcf00ce AM |
5719 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5720 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5721 | adjust = 0; |
b5599592 | 5722 | sec->lma = p_end; |
1cfb7d1e | 5723 | } |
3ac9b6c9 | 5724 | p->p_memsz += adjust; |
1cfb7d1e | 5725 | |
88967714 AM |
5726 | if (this_hdr->sh_type != SHT_NOBITS) |
5727 | { | |
32812159 AM |
5728 | if (p->p_filesz + adjust < p->p_memsz) |
5729 | { | |
5730 | /* We have a PROGBITS section following NOBITS ones. | |
07d6d2b8 | 5731 | Allocate file space for the NOBITS section(s) and |
32812159 AM |
5732 | zero it. */ |
5733 | adjust = p->p_memsz - p->p_filesz; | |
5734 | if (!write_zeros (abfd, off, adjust)) | |
5735 | return FALSE; | |
5736 | } | |
88967714 AM |
5737 | off += adjust; |
5738 | p->p_filesz += adjust; | |
252b5132 | 5739 | } |
252b5132 RH |
5740 | } |
5741 | ||
5742 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5743 | { | |
b301b248 AM |
5744 | /* The section at i == 0 is the one that actually contains |
5745 | everything. */ | |
4a938328 MS |
5746 | if (i == 0) |
5747 | { | |
627b32bc | 5748 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5749 | off += this_hdr->sh_size; |
5750 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5751 | p->p_memsz = 0; |
5752 | p->p_align = 1; | |
252b5132 | 5753 | } |
4a938328 | 5754 | else |
252b5132 | 5755 | { |
b301b248 | 5756 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5757 | sec->filepos = 0; |
eea6121a | 5758 | sec->size = 0; |
b301b248 AM |
5759 | sec->flags = 0; |
5760 | continue; | |
252b5132 | 5761 | } |
252b5132 RH |
5762 | } |
5763 | else | |
5764 | { | |
1e951488 | 5765 | if (p->p_type == PT_LOAD) |
b301b248 | 5766 | { |
1e951488 AM |
5767 | this_hdr->sh_offset = sec->filepos = off; |
5768 | if (this_hdr->sh_type != SHT_NOBITS) | |
5769 | off += this_hdr->sh_size; | |
5770 | } | |
5771 | else if (this_hdr->sh_type == SHT_NOBITS | |
5772 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5773 | && this_hdr->sh_offset == 0) | |
5774 | { | |
5775 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5776 | (See _bfd_elf_map_sections_to_segments "Create a | |
5777 | final PT_LOAD".) Set sh_offset to the value it | |
5778 | would have if we had created a zero p_filesz and | |
5779 | p_memsz PT_LOAD header for the section. This | |
5780 | also makes the PT_TLS header have the same | |
5781 | p_offset value. */ | |
5782 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5783 | off, align); | |
5784 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5785 | } |
252b5132 | 5786 | |
02bf8d82 | 5787 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5788 | { |
6a3cd2b4 | 5789 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5790 | /* A load section without SHF_ALLOC is something like |
5791 | a note section in a PT_NOTE segment. These take | |
5792 | file space but are not loaded into memory. */ | |
5793 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5794 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5795 | } |
6a3cd2b4 | 5796 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5797 | { |
6a3cd2b4 AM |
5798 | if (p->p_type == PT_TLS) |
5799 | p->p_memsz += this_hdr->sh_size; | |
5800 | ||
5801 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5802 | normal segments. */ | |
5803 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5804 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5805 | } |
5806 | ||
b10a8ae0 L |
5807 | if (align > p->p_align |
5808 | && !m->p_align_valid | |
5809 | && (p->p_type != PT_LOAD | |
5810 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5811 | p->p_align = align; |
5812 | } | |
5813 | ||
bf988460 | 5814 | if (!m->p_flags_valid) |
252b5132 RH |
5815 | { |
5816 | p->p_flags |= PF_R; | |
02bf8d82 | 5817 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5818 | p->p_flags |= PF_X; |
02bf8d82 | 5819 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5820 | p->p_flags |= PF_W; |
5821 | } | |
5822 | } | |
43a8475c | 5823 | |
bf988460 | 5824 | off -= off_adjust; |
0920dee7 | 5825 | |
7c928300 AM |
5826 | /* Check that all sections are in a PT_LOAD segment. |
5827 | Don't check funky gdb generated core files. */ | |
5828 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5829 | { |
5830 | bfd_boolean check_vma = TRUE; | |
5831 | ||
5832 | for (i = 1; i < m->count; i++) | |
5833 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5834 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5835 | ->this_hdr), p) != 0 | |
5836 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5837 | ->this_hdr), p) != 0) | |
0920dee7 | 5838 | { |
9a83a553 AM |
5839 | /* Looks like we have overlays packed into the segment. */ |
5840 | check_vma = FALSE; | |
5841 | break; | |
0920dee7 | 5842 | } |
9a83a553 AM |
5843 | |
5844 | for (i = 0; i < m->count; i++) | |
5845 | { | |
5846 | Elf_Internal_Shdr *this_hdr; | |
5847 | asection *sec; | |
5848 | ||
5849 | sec = m->sections[i]; | |
5850 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5851 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5852 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5853 | { |
4eca0228 | 5854 | _bfd_error_handler |
695344c0 | 5855 | /* xgettext:c-format */ |
871b3ab2 | 5856 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5857 | abfd, sec, j); |
5858 | print_segment_map (m); | |
5859 | } | |
5860 | } | |
5861 | } | |
252b5132 RH |
5862 | } |
5863 | ||
12bd6957 | 5864 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
5865 | return TRUE; |
5866 | } | |
5867 | ||
1faa385f NC |
5868 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
5869 | is no defined method for detecting such files, so we have to | |
5870 | use heuristics instead. */ | |
5871 | ||
5872 | bfd_boolean | |
5873 | is_debuginfo_file (bfd *abfd) | |
5874 | { | |
5875 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
5876 | return FALSE; | |
5877 | ||
5878 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
5879 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
5880 | Elf_Internal_Shdr **headerp; | |
5881 | ||
5882 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
5883 | { | |
5884 | Elf_Internal_Shdr *header = * headerp; | |
5885 | ||
5886 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
5887 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
5888 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
5889 | && header->sh_type != SHT_NOBITS | |
5890 | && header->sh_type != SHT_NOTE) | |
5891 | return FALSE; | |
5892 | } | |
5893 | ||
5894 | return TRUE; | |
5895 | } | |
5896 | ||
f3520d2f AM |
5897 | /* Assign file positions for the other sections. */ |
5898 | ||
5899 | static bfd_boolean | |
5900 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
5901 | struct bfd_link_info *link_info) | |
5902 | { | |
5903 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
5904 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 5905 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
5906 | Elf_Internal_Phdr *phdrs; |
5907 | Elf_Internal_Phdr *p; | |
5908 | struct elf_segment_map *m; | |
62655c7b | 5909 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
5910 | bfd_vma filehdr_vaddr, filehdr_paddr; |
5911 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
5912 | file_ptr off; | |
f3520d2f AM |
5913 | unsigned int count; |
5914 | ||
5c182d5f | 5915 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 5916 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 5917 | off = elf_next_file_pos (abfd); |
e06efbf1 | 5918 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 5919 | { |
5c182d5f AM |
5920 | Elf_Internal_Shdr *hdr; |
5921 | ||
5922 | hdr = *hdrpp; | |
5923 | if (hdr->bfd_section != NULL | |
252e386e AM |
5924 | && (hdr->bfd_section->filepos != 0 |
5925 | || (hdr->sh_type == SHT_NOBITS | |
5926 | && hdr->contents == NULL))) | |
627b32bc | 5927 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
5928 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
5929 | { | |
1faa385f NC |
5930 | if (hdr->sh_size != 0 |
5931 | /* PR 24717 - debuginfo files are known to be not strictly | |
5932 | compliant with the ELF standard. In particular they often | |
5933 | have .note.gnu.property sections that are outside of any | |
5934 | loadable segment. This is not a problem for such files, | |
5935 | so do not warn about them. */ | |
5936 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 5937 | _bfd_error_handler |
695344c0 | 5938 | /* xgettext:c-format */ |
871b3ab2 | 5939 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
5940 | abfd, |
5941 | (hdr->bfd_section == NULL | |
5942 | ? "*unknown*" | |
5943 | : hdr->bfd_section->name)); | |
3ba71138 L |
5944 | /* We don't need to page align empty sections. */ |
5945 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
5946 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
5947 | bed->maxpagesize); | |
5948 | else | |
5949 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
5950 | hdr->sh_addralign); | |
5951 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
5952 | FALSE); | |
5953 | } | |
5954 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
5955 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
5956 | || (hdr->bfd_section != NULL |
5957 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
5958 | /* Compress DWARF debug sections. */ | |
12bd6957 | 5959 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
5960 | || (elf_symtab_shndx_list (abfd) != NULL |
5961 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
5962 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
5963 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
5964 | hdr->sh_offset = -1; |
5965 | else | |
5966 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
5967 | } |
5968 | ||
252b5132 RH |
5969 | /* Now that we have set the section file positions, we can set up |
5970 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
5971 | count = 0; |
5972 | filehdr_vaddr = 0; | |
5973 | filehdr_paddr = 0; | |
5974 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
5975 | phdrs_paddr = 0; | |
62655c7b | 5976 | hdrs_segment = NULL; |
f3520d2f | 5977 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 5978 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
5979 | { |
5980 | ++count; | |
5981 | if (p->p_type != PT_LOAD) | |
5982 | continue; | |
5983 | ||
5984 | if (m->includes_filehdr) | |
5985 | { | |
5986 | filehdr_vaddr = p->p_vaddr; | |
5987 | filehdr_paddr = p->p_paddr; | |
5988 | } | |
5989 | if (m->includes_phdrs) | |
5990 | { | |
5991 | phdrs_vaddr = p->p_vaddr; | |
5992 | phdrs_paddr = p->p_paddr; | |
5993 | if (m->includes_filehdr) | |
5994 | { | |
62655c7b | 5995 | hdrs_segment = m; |
f3520d2f AM |
5996 | phdrs_vaddr += bed->s->sizeof_ehdr; |
5997 | phdrs_paddr += bed->s->sizeof_ehdr; | |
5998 | } | |
5999 | } | |
6000 | } | |
6001 | ||
62655c7b RM |
6002 | if (hdrs_segment != NULL && link_info != NULL) |
6003 | { | |
6004 | /* There is a segment that contains both the file headers and the | |
6005 | program headers, so provide a symbol __ehdr_start pointing there. | |
6006 | A program can use this to examine itself robustly. */ | |
6007 | ||
6008 | struct elf_link_hash_entry *hash | |
6009 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
6010 | FALSE, FALSE, TRUE); | |
6011 | /* If the symbol was referenced and not defined, define it. */ | |
6012 | if (hash != NULL | |
6013 | && (hash->root.type == bfd_link_hash_new | |
6014 | || hash->root.type == bfd_link_hash_undefined | |
6015 | || hash->root.type == bfd_link_hash_undefweak | |
6016 | || hash->root.type == bfd_link_hash_common)) | |
6017 | { | |
6018 | asection *s = NULL; | |
6019 | if (hdrs_segment->count != 0) | |
6020 | /* The segment contains sections, so use the first one. */ | |
6021 | s = hdrs_segment->sections[0]; | |
6022 | else | |
6023 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 6024 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
6025 | if (m->count != 0) |
6026 | { | |
6027 | s = m->sections[0]; | |
6028 | break; | |
6029 | } | |
6030 | ||
6031 | if (s != NULL) | |
6032 | { | |
6033 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6034 | hash->root.u.def.section = s; | |
6035 | } | |
6036 | else | |
6037 | { | |
6038 | hash->root.u.def.value = filehdr_vaddr; | |
6039 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6040 | } | |
6041 | ||
6042 | hash->root.type = bfd_link_hash_defined; | |
6043 | hash->def_regular = 1; | |
6044 | hash->non_elf = 0; | |
6045 | } | |
6046 | } | |
6047 | ||
12bd6957 | 6048 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6049 | { |
129af99f | 6050 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6051 | { |
f2731e0c | 6052 | bfd_vma start, end; |
01f7e10c | 6053 | bfd_boolean ok; |
1ea63fd2 | 6054 | |
129af99f | 6055 | if (link_info != NULL) |
8c37241b | 6056 | { |
129af99f | 6057 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6058 | in link_info. Note that there may be padding between |
6059 | relro_start and the first RELRO section. */ | |
6060 | start = link_info->relro_start; | |
6061 | end = link_info->relro_end; | |
6062 | } | |
6063 | else if (m->count != 0) | |
6064 | { | |
6065 | if (!m->p_size_valid) | |
6066 | abort (); | |
6067 | start = m->sections[0]->vma; | |
6068 | end = start + m->p_size; | |
6069 | } | |
6070 | else | |
6071 | { | |
6072 | start = 0; | |
6073 | end = 0; | |
6074 | } | |
6075 | ||
01f7e10c | 6076 | ok = FALSE; |
f2731e0c AM |
6077 | if (start < end) |
6078 | { | |
6079 | struct elf_segment_map *lm; | |
6080 | const Elf_Internal_Phdr *lp; | |
6081 | unsigned int i; | |
6082 | ||
6083 | /* Find a LOAD segment containing a section in the RELRO | |
6084 | segment. */ | |
12bd6957 | 6085 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6086 | lm != NULL; |
6087 | lm = lm->next, lp++) | |
8c37241b JJ |
6088 | { |
6089 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6090 | && lm->count != 0 |
dbc88fc1 AM |
6091 | && (lm->sections[lm->count - 1]->vma |
6092 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
6093 | ? lm->sections[lm->count - 1]->size | |
6094 | : 0)) > start | |
f2731e0c | 6095 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6096 | break; |
6097 | } | |
f2731e0c | 6098 | |
01f7e10c | 6099 | if (lm != NULL) |
129af99f | 6100 | { |
01f7e10c AM |
6101 | /* Find the section starting the RELRO segment. */ |
6102 | for (i = 0; i < lm->count; i++) | |
6103 | { | |
6104 | asection *s = lm->sections[i]; | |
6105 | if (s->vma >= start | |
6106 | && s->vma < end | |
6107 | && s->size != 0) | |
6108 | break; | |
6109 | } | |
6110 | ||
6111 | if (i < lm->count) | |
6112 | { | |
6113 | p->p_vaddr = lm->sections[i]->vma; | |
6114 | p->p_paddr = lm->sections[i]->lma; | |
6115 | p->p_offset = lm->sections[i]->filepos; | |
6116 | p->p_memsz = end - p->p_vaddr; | |
6117 | p->p_filesz = p->p_memsz; | |
6118 | ||
6119 | /* The RELRO segment typically ends a few bytes | |
6120 | into .got.plt but other layouts are possible. | |
6121 | In cases where the end does not match any | |
6122 | loaded section (for instance is in file | |
6123 | padding), trim p_filesz back to correspond to | |
6124 | the end of loaded section contents. */ | |
6125 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6126 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6127 | ||
6128 | /* Preserve the alignment and flags if they are | |
6129 | valid. The gold linker generates RW/4 for | |
6130 | the PT_GNU_RELRO section. It is better for | |
6131 | objcopy/strip to honor these attributes | |
6132 | otherwise gdb will choke when using separate | |
6133 | debug files. */ | |
6134 | if (!m->p_align_valid) | |
6135 | p->p_align = 1; | |
6136 | if (!m->p_flags_valid) | |
6137 | p->p_flags = PF_R; | |
6138 | ok = TRUE; | |
6139 | } | |
129af99f | 6140 | } |
b84a33b5 | 6141 | } |
01f7e10c AM |
6142 | if (link_info != NULL) |
6143 | BFD_ASSERT (ok); | |
6144 | if (!ok) | |
6145 | memset (p, 0, sizeof *p); | |
129af99f | 6146 | } |
04c3a755 NS |
6147 | else if (p->p_type == PT_GNU_STACK) |
6148 | { | |
6149 | if (m->p_size_valid) | |
6150 | p->p_memsz = m->p_size; | |
6151 | } | |
129af99f AS |
6152 | else if (m->count != 0) |
6153 | { | |
e06efbf1 | 6154 | unsigned int i; |
1a9ccd70 | 6155 | |
129af99f AS |
6156 | if (p->p_type != PT_LOAD |
6157 | && (p->p_type != PT_NOTE | |
6158 | || bfd_get_format (abfd) != bfd_core)) | |
6159 | { | |
1a9ccd70 NC |
6160 | /* A user specified segment layout may include a PHDR |
6161 | segment that overlaps with a LOAD segment... */ | |
6162 | if (p->p_type == PT_PHDR) | |
6163 | { | |
6164 | m->count = 0; | |
6165 | continue; | |
6166 | } | |
6167 | ||
c86934ce NC |
6168 | if (m->includes_filehdr || m->includes_phdrs) |
6169 | { | |
b1fa9dd6 | 6170 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6171 | _bfd_error_handler |
871b3ab2 | 6172 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6173 | "and/or program header"), |
6174 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6175 | return FALSE; |
6176 | } | |
129af99f | 6177 | |
86b2281f | 6178 | p->p_filesz = 0; |
129af99f | 6179 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6180 | for (i = m->count; i-- != 0;) |
6181 | { | |
6182 | asection *sect = m->sections[i]; | |
6183 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6184 | if (hdr->sh_type != SHT_NOBITS) | |
6185 | { | |
6186 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6187 | + hdr->sh_size); | |
6188 | break; | |
6189 | } | |
6190 | } | |
129af99f AS |
6191 | } |
6192 | } | |
6193 | else if (m->includes_filehdr) | |
6194 | { | |
6195 | p->p_vaddr = filehdr_vaddr; | |
6196 | if (! m->p_paddr_valid) | |
6197 | p->p_paddr = filehdr_paddr; | |
6198 | } | |
6199 | else if (m->includes_phdrs) | |
6200 | { | |
6201 | p->p_vaddr = phdrs_vaddr; | |
6202 | if (! m->p_paddr_valid) | |
6203 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
6204 | } |
6205 | } | |
6206 | ||
12bd6957 | 6207 | elf_next_file_pos (abfd) = off; |
252b5132 | 6208 | |
b34976b6 | 6209 | return TRUE; |
252b5132 RH |
6210 | } |
6211 | ||
6a40cf0c NC |
6212 | static elf_section_list * |
6213 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6214 | { | |
6215 | for (;list != NULL; list = list->next) | |
6216 | if (list->ndx == i) | |
6217 | break; | |
6218 | return list; | |
6219 | } | |
6220 | ||
252b5132 RH |
6221 | /* Work out the file positions of all the sections. This is called by |
6222 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6223 | VMAs must be known before this is called. | |
6224 | ||
e0638f70 AM |
6225 | Reloc sections come in two flavours: Those processed specially as |
6226 | "side-channel" data attached to a section to which they apply, and | |
6227 | those that bfd doesn't process as relocations. The latter sort are | |
6228 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
6229 | consider the former sort here, unless they form part of the loadable | |
6230 | image. Reloc sections not assigned here will be handled later by | |
6231 | assign_file_positions_for_relocs. | |
252b5132 RH |
6232 | |
6233 | We also don't set the positions of the .symtab and .strtab here. */ | |
6234 | ||
b34976b6 | 6235 | static bfd_boolean |
c84fca4d AO |
6236 | assign_file_positions_except_relocs (bfd *abfd, |
6237 | struct bfd_link_info *link_info) | |
252b5132 | 6238 | { |
5c182d5f AM |
6239 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6240 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6241 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6242 | |
6243 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6244 | && bfd_get_format (abfd) != bfd_core) | |
6245 | { | |
5c182d5f AM |
6246 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6247 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6248 | Elf_Internal_Shdr **hdrpp; |
6249 | unsigned int i; | |
a485e98e | 6250 | file_ptr off; |
252b5132 RH |
6251 | |
6252 | /* Start after the ELF header. */ | |
6253 | off = i_ehdrp->e_ehsize; | |
6254 | ||
6255 | /* We are not creating an executable, which means that we are | |
6256 | not creating a program header, and that the actual order of | |
6257 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6258 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6259 | { |
6260 | Elf_Internal_Shdr *hdr; | |
6261 | ||
6262 | hdr = *hdrpp; | |
e0638f70 AM |
6263 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6264 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
6265 | || (hdr->bfd_section != NULL |
6266 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
6267 | /* Compress DWARF debug sections. */ | |
12bd6957 | 6268 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6269 | || (elf_symtab_shndx_list (abfd) != NULL |
6270 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6271 | || i == elf_strtab_sec (abfd) |
6272 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6273 | { |
6274 | hdr->sh_offset = -1; | |
252b5132 | 6275 | } |
9ad5cbcf | 6276 | else |
b34976b6 | 6277 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6278 | } |
a485e98e AM |
6279 | |
6280 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
6281 | } |
6282 | else | |
6283 | { | |
f3520d2f AM |
6284 | unsigned int alloc; |
6285 | ||
252b5132 | 6286 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6287 | assignment of sections to segments. */ |
f3520d2f AM |
6288 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6289 | return FALSE; | |
6290 | ||
6291 | /* And for non-load sections. */ | |
6292 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6293 | return FALSE; | |
6294 | ||
e36284ab AM |
6295 | if (bed->elf_backend_modify_program_headers != NULL) |
6296 | { | |
6297 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
6298 | return FALSE; | |
6299 | } | |
6300 | ||
58e7ebac | 6301 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
0e1862bb | 6302 | if (link_info != NULL && bfd_link_pie (link_info)) |
58e7ebac L |
6303 | { |
6304 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
6305 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
6306 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6307 | ||
6308 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6309 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6310 | for (; segment < end_segment; segment++) | |
6311 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6312 | p_vaddr = segment->p_vaddr; | |
6313 | ||
6314 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6315 | segments is non-zero. */ | |
6316 | if (p_vaddr) | |
6317 | i_ehdrp->e_type = ET_EXEC; | |
6318 | } | |
6319 | ||
f3520d2f | 6320 | /* Write out the program headers. */ |
6838f2be | 6321 | alloc = elf_elfheader (abfd)->e_phnum; |
1a9ccd70 NC |
6322 | if (alloc == 0) |
6323 | return TRUE; | |
6324 | ||
1a9ccd70 NC |
6325 | /* PR ld/20815 - Check that the program header segment, if present, will |
6326 | be loaded into memory. FIXME: The check below is not sufficient as | |
6327 | really all PT_LOAD segments should be checked before issuing an error | |
6328 | message. Plus the PHDR segment does not have to be the first segment | |
6329 | in the program header table. But this version of the check should | |
cd584857 NC |
6330 | catch all real world use cases. |
6331 | ||
6332 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6333 | ascending order, as per the ELF spec. But this breaks some programs, | |
6334 | including the Linux kernel. But really either the spec should be | |
07d6d2b8 | 6335 | changed or the programs updated. */ |
1a9ccd70 | 6336 | if (alloc > 1 |
cd584857 | 6337 | && tdata->phdr[0].p_type == PT_PHDR |
d00dd7dc AM |
6338 | && (bed->elf_backend_allow_non_load_phdr == NULL |
6339 | || !bed->elf_backend_allow_non_load_phdr (abfd, tdata->phdr, | |
6340 | alloc)) | |
cd584857 NC |
6341 | && tdata->phdr[1].p_type == PT_LOAD |
6342 | && (tdata->phdr[1].p_vaddr > tdata->phdr[0].p_vaddr | |
6838f2be AM |
6343 | || (tdata->phdr[1].p_vaddr + tdata->phdr[1].p_memsz |
6344 | < tdata->phdr[0].p_vaddr + tdata->phdr[0].p_memsz))) | |
1a9ccd70 NC |
6345 | { |
6346 | /* The fix for this error is usually to edit the linker script being | |
6347 | used and set up the program headers manually. Either that or | |
6348 | leave room for the headers at the start of the SECTIONS. */ | |
6838f2be AM |
6349 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" |
6350 | " by LOAD segment"), | |
1a9ccd70 | 6351 | abfd); |
1a9ccd70 NC |
6352 | return FALSE; |
6353 | } | |
6354 | ||
f3520d2f | 6355 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
cd584857 NC |
6356 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6357 | return FALSE; | |
252b5132 RH |
6358 | } |
6359 | ||
b34976b6 | 6360 | return TRUE; |
252b5132 RH |
6361 | } |
6362 | ||
b34976b6 | 6363 | static bfd_boolean |
217aa764 | 6364 | prep_headers (bfd *abfd) |
252b5132 | 6365 | { |
3d540e93 | 6366 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6367 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6368 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6369 | |
6370 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6371 | |
2b0f7ef9 | 6372 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6373 | if (shstrtab == NULL) |
b34976b6 | 6374 | return FALSE; |
252b5132 RH |
6375 | |
6376 | elf_shstrtab (abfd) = shstrtab; | |
6377 | ||
6378 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6379 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6380 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6381 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6382 | ||
6383 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6384 | i_ehdrp->e_ident[EI_DATA] = | |
6385 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6386 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6387 | ||
252b5132 RH |
6388 | if ((abfd->flags & DYNAMIC) != 0) |
6389 | i_ehdrp->e_type = ET_DYN; | |
6390 | else if ((abfd->flags & EXEC_P) != 0) | |
6391 | i_ehdrp->e_type = ET_EXEC; | |
6392 | else if (bfd_get_format (abfd) == bfd_core) | |
6393 | i_ehdrp->e_type = ET_CORE; | |
6394 | else | |
6395 | i_ehdrp->e_type = ET_REL; | |
6396 | ||
6397 | switch (bfd_get_arch (abfd)) | |
6398 | { | |
6399 | case bfd_arch_unknown: | |
6400 | i_ehdrp->e_machine = EM_NONE; | |
6401 | break; | |
aa4f99bb AO |
6402 | |
6403 | /* There used to be a long list of cases here, each one setting | |
6404 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6405 | in the corresponding bfd definition. To avoid duplication, | |
6406 | the switch was removed. Machines that need special handling | |
6407 | can generally do it in elf_backend_final_write_processing(), | |
6408 | unless they need the information earlier than the final write. | |
6409 | Such need can generally be supplied by replacing the tests for | |
6410 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6411 | default: |
9c5bfbb7 AM |
6412 | i_ehdrp->e_machine = bed->elf_machine_code; |
6413 | } | |
aa4f99bb | 6414 | |
252b5132 RH |
6415 | i_ehdrp->e_version = bed->s->ev_current; |
6416 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6417 | ||
c044fabd | 6418 | /* No program header, for now. */ |
252b5132 RH |
6419 | i_ehdrp->e_phoff = 0; |
6420 | i_ehdrp->e_phentsize = 0; | |
6421 | i_ehdrp->e_phnum = 0; | |
6422 | ||
c044fabd | 6423 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6424 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6425 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6426 | ||
c044fabd | 6427 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 6428 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
6429 | /* It all happens later. */ |
6430 | ; | |
252b5132 RH |
6431 | else |
6432 | { | |
6433 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
6434 | i_ehdrp->e_phoff = 0; |
6435 | } | |
6436 | ||
6437 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 6438 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6439 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6440 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6441 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6442 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6443 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6444 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6445 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6446 | return FALSE; |
252b5132 | 6447 | |
b34976b6 | 6448 | return TRUE; |
252b5132 RH |
6449 | } |
6450 | ||
6451 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 6452 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6453 | |
0ce398f1 L |
6454 | static bfd_boolean |
6455 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6456 | { |
6457 | file_ptr off; | |
e06efbf1 | 6458 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6459 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6460 | Elf_Internal_Ehdr *i_ehdrp; |
6461 | const struct elf_backend_data *bed; | |
252b5132 | 6462 | |
12bd6957 | 6463 | off = elf_next_file_pos (abfd); |
252b5132 | 6464 | |
e06efbf1 L |
6465 | shdrpp = elf_elfsections (abfd); |
6466 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6467 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6468 | { |
252b5132 | 6469 | shdrp = *shdrpp; |
0ce398f1 L |
6470 | if (shdrp->sh_offset == -1) |
6471 | { | |
3e19fb8f | 6472 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6473 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6474 | || shdrp->sh_type == SHT_RELA); | |
6475 | if (is_rel | |
3e19fb8f | 6476 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 L |
6477 | { |
6478 | if (!is_rel) | |
6479 | { | |
3e19fb8f L |
6480 | const char *name = sec->name; |
6481 | struct bfd_elf_section_data *d; | |
6482 | ||
0ce398f1 | 6483 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6484 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6485 | shdrp->contents)) |
6486 | return FALSE; | |
3e19fb8f L |
6487 | |
6488 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6489 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6490 | { | |
6491 | /* If section is compressed with zlib-gnu, convert | |
6492 | section name from .debug_* to .zdebug_*. */ | |
6493 | char *new_name | |
6494 | = convert_debug_to_zdebug (abfd, name); | |
6495 | if (new_name == NULL) | |
6496 | return FALSE; | |
6497 | name = new_name; | |
6498 | } | |
dd905818 | 6499 | /* Add section name to section name section. */ |
3e19fb8f L |
6500 | if (shdrp->sh_name != (unsigned int) -1) |
6501 | abort (); | |
6502 | shdrp->sh_name | |
6503 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6504 | name, FALSE); | |
6505 | d = elf_section_data (sec); | |
6506 | ||
dd905818 | 6507 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6508 | if (d->rel.hdr |
6509 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6510 | d->rel.hdr, | |
6511 | name, FALSE)) | |
6512 | return FALSE; | |
6513 | if (d->rela.hdr | |
6514 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6515 | d->rela.hdr, | |
91cb26da | 6516 | name, TRUE)) |
3e19fb8f L |
6517 | return FALSE; |
6518 | ||
0ce398f1 | 6519 | /* Update section size and contents. */ |
3e19fb8f L |
6520 | shdrp->sh_size = sec->size; |
6521 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6522 | shdrp->bfd_section->contents = NULL; |
6523 | } | |
6524 | off = _bfd_elf_assign_file_position_for_section (shdrp, | |
6525 | off, | |
6526 | TRUE); | |
6527 | } | |
6528 | } | |
252b5132 RH |
6529 | } |
6530 | ||
3e19fb8f L |
6531 | /* Place section name section after DWARF debug sections have been |
6532 | compressed. */ | |
6533 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6534 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6535 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6536 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6537 | ||
6538 | /* Place the section headers. */ | |
a485e98e AM |
6539 | i_ehdrp = elf_elfheader (abfd); |
6540 | bed = get_elf_backend_data (abfd); | |
6541 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6542 | i_ehdrp->e_shoff = off; | |
6543 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6544 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6545 | |
6546 | return TRUE; | |
252b5132 RH |
6547 | } |
6548 | ||
b34976b6 | 6549 | bfd_boolean |
217aa764 | 6550 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6551 | { |
9c5bfbb7 | 6552 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6553 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6554 | bfd_boolean failed; |
9ad5cbcf | 6555 | unsigned int count, num_sec; |
30e8ee25 | 6556 | struct elf_obj_tdata *t; |
252b5132 RH |
6557 | |
6558 | if (! abfd->output_has_begun | |
217aa764 | 6559 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6560 | return FALSE; |
db727370 JL |
6561 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6562 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6563 | sections, and modification of existing section sizes was restricted. | |
6564 | This means the ELF header, program headers and section headers can't have | |
6565 | changed. | |
6566 | If the contents of any sections has been modified, then those changes have | |
6567 | already been written to the BFD. */ | |
6568 | else if (abfd->direction == both_direction) | |
6569 | { | |
6570 | BFD_ASSERT (abfd->output_has_begun); | |
6571 | return TRUE; | |
6572 | } | |
252b5132 RH |
6573 | |
6574 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6575 | |
b34976b6 | 6576 | failed = FALSE; |
252b5132 RH |
6577 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6578 | if (failed) | |
b34976b6 | 6579 | return FALSE; |
252b5132 | 6580 | |
0ce398f1 L |
6581 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6582 | return FALSE; | |
252b5132 | 6583 | |
c044fabd | 6584 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6585 | num_sec = elf_numsections (abfd); |
6586 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6587 | { |
3e19fb8f L |
6588 | i_shdrp[count]->sh_name |
6589 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6590 | i_shdrp[count]->sh_name); | |
252b5132 | 6591 | if (bed->elf_backend_section_processing) |
75506100 MR |
6592 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6593 | return FALSE; | |
252b5132 RH |
6594 | if (i_shdrp[count]->contents) |
6595 | { | |
dc810e39 AM |
6596 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6597 | ||
252b5132 | 6598 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6599 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6600 | return FALSE; |
252b5132 RH |
6601 | } |
6602 | } | |
6603 | ||
6604 | /* Write out the section header names. */ | |
30e8ee25 | 6605 | t = elf_tdata (abfd); |
26ae6d5e | 6606 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6607 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6608 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6609 | return FALSE; |
252b5132 | 6610 | |
cc364be6 AM |
6611 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
6612 | return FALSE; | |
252b5132 | 6613 | |
ff59fc36 RM |
6614 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6615 | return FALSE; | |
6616 | ||
6617 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6618 | if (t->o->build_id.after_write_object_contents != NULL) |
6619 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6620 | |
6621 | return TRUE; | |
252b5132 RH |
6622 | } |
6623 | ||
b34976b6 | 6624 | bfd_boolean |
217aa764 | 6625 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6626 | { |
c044fabd | 6627 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6628 | return _bfd_elf_write_object_contents (abfd); |
6629 | } | |
c044fabd KH |
6630 | |
6631 | /* Given a section, search the header to find them. */ | |
6632 | ||
cb33740c | 6633 | unsigned int |
198beae2 | 6634 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6635 | { |
9c5bfbb7 | 6636 | const struct elf_backend_data *bed; |
91d6fa6a | 6637 | unsigned int sec_index; |
252b5132 | 6638 | |
9ad5cbcf AM |
6639 | if (elf_section_data (asect) != NULL |
6640 | && elf_section_data (asect)->this_idx != 0) | |
6641 | return elf_section_data (asect)->this_idx; | |
6642 | ||
6643 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6644 | sec_index = SHN_ABS; |
af746e92 | 6645 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6646 | sec_index = SHN_COMMON; |
af746e92 | 6647 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6648 | sec_index = SHN_UNDEF; |
af746e92 | 6649 | else |
91d6fa6a | 6650 | sec_index = SHN_BAD; |
252b5132 | 6651 | |
af746e92 | 6652 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6653 | if (bed->elf_backend_section_from_bfd_section) |
6654 | { | |
91d6fa6a | 6655 | int retval = sec_index; |
9ad5cbcf | 6656 | |
af746e92 AM |
6657 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6658 | return retval; | |
252b5132 RH |
6659 | } |
6660 | ||
91d6fa6a | 6661 | if (sec_index == SHN_BAD) |
af746e92 | 6662 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6663 | |
91d6fa6a | 6664 | return sec_index; |
252b5132 RH |
6665 | } |
6666 | ||
6667 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6668 | on error. */ | |
6669 | ||
6670 | int | |
217aa764 | 6671 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6672 | { |
6673 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6674 | int idx; | |
6675 | flagword flags = asym_ptr->flags; | |
6676 | ||
6677 | /* When gas creates relocations against local labels, it creates its | |
6678 | own symbol for the section, but does put the symbol into the | |
6679 | symbol chain, so udata is 0. When the linker is generating | |
6680 | relocatable output, this section symbol may be for one of the | |
6681 | input sections rather than the output section. */ | |
6682 | if (asym_ptr->udata.i == 0 | |
6683 | && (flags & BSF_SECTION_SYM) | |
6684 | && asym_ptr->section) | |
6685 | { | |
5372391b | 6686 | asection *sec; |
252b5132 RH |
6687 | int indx; |
6688 | ||
5372391b AM |
6689 | sec = asym_ptr->section; |
6690 | if (sec->owner != abfd && sec->output_section != NULL) | |
6691 | sec = sec->output_section; | |
6692 | if (sec->owner == abfd | |
6693 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6694 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6695 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6696 | } | |
6697 | ||
6698 | idx = asym_ptr->udata.i; | |
6699 | ||
6700 | if (idx == 0) | |
6701 | { | |
6702 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6703 | which is used in a relocation entry. */ |
4eca0228 | 6704 | _bfd_error_handler |
695344c0 | 6705 | /* xgettext:c-format */ |
871b3ab2 | 6706 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6707 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6708 | bfd_set_error (bfd_error_no_symbols); |
6709 | return -1; | |
6710 | } | |
6711 | ||
6712 | #if DEBUG & 4 | |
6713 | { | |
6714 | fprintf (stderr, | |
cd9af601 AM |
6715 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6716 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6717 | fflush (stderr); |
6718 | } | |
6719 | #endif | |
6720 | ||
6721 | return idx; | |
6722 | } | |
6723 | ||
84d1d650 | 6724 | /* Rewrite program header information. */ |
252b5132 | 6725 | |
b34976b6 | 6726 | static bfd_boolean |
84d1d650 | 6727 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6728 | { |
b34976b6 AM |
6729 | Elf_Internal_Ehdr *iehdr; |
6730 | struct elf_segment_map *map; | |
6731 | struct elf_segment_map *map_first; | |
6732 | struct elf_segment_map **pointer_to_map; | |
6733 | Elf_Internal_Phdr *segment; | |
6734 | asection *section; | |
6735 | unsigned int i; | |
6736 | unsigned int num_segments; | |
6737 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6738 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6739 | bfd_vma maxpagesize; |
6740 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6741 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6742 | const struct elf_backend_data *bed; |
bc67d8a6 | 6743 | |
caf47ea6 | 6744 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6745 | iehdr = elf_elfheader (ibfd); |
6746 | ||
bc67d8a6 | 6747 | map_first = NULL; |
c044fabd | 6748 | pointer_to_map = &map_first; |
252b5132 RH |
6749 | |
6750 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6751 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6752 | ||
6753 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6754 | #define SEGMENT_END(segment, start) \ |
6755 | (start + (segment->p_memsz > segment->p_filesz \ | |
6756 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6757 | |
eecdbe52 JJ |
6758 | #define SECTION_SIZE(section, segment) \ |
6759 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6760 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6761 | ? section->size : 0) |
eecdbe52 | 6762 | |
b34976b6 | 6763 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6764 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6765 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6766 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6767 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6768 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6769 | |
b34976b6 | 6770 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6771 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6772 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6773 | (section->lma >= base \ | |
beab4532 | 6774 | && (section->lma + SECTION_SIZE (section, segment) >= section->lma) \ |
eecdbe52 | 6775 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6776 | <= SEGMENT_END (segment, base))) |
252b5132 | 6777 | |
0efc80c8 L |
6778 | /* Handle PT_NOTE segment. */ |
6779 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6780 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6781 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6782 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6783 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6784 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6785 | |
0efc80c8 L |
6786 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6787 | etc. */ | |
6788 | #define IS_COREFILE_NOTE(p, s) \ | |
6789 | (IS_NOTE (p, s) \ | |
6790 | && bfd_get_format (ibfd) == bfd_core \ | |
6791 | && s->vma == 0 \ | |
6792 | && s->lma == 0) | |
6793 | ||
252b5132 RH |
6794 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6795 | linker, which generates a PT_INTERP section with p_vaddr and | |
6796 | p_memsz set to 0. */ | |
aecc8f8a AM |
6797 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6798 | (p->p_vaddr == 0 \ | |
6799 | && p->p_paddr == 0 \ | |
6800 | && p->p_memsz == 0 \ | |
6801 | && p->p_filesz > 0 \ | |
6802 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6803 | && s->size > 0 \ |
aecc8f8a | 6804 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6805 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6806 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6807 | |
bc67d8a6 NC |
6808 | /* Decide if the given section should be included in the given segment. |
6809 | A section will be included if: | |
f5ffc919 | 6810 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6811 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6812 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6813 | segment. |
bc67d8a6 | 6814 | 3. There is an output section associated with it, |
eecdbe52 | 6815 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6816 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6817 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6818 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6819 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6820 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6821 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6822 | ((((segment->p_paddr \ |
6823 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6824 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6825 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6826 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6827 | && segment->p_type != PT_GNU_STACK \ |
6828 | && (segment->p_type != PT_TLS \ | |
6829 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6830 | && (segment->p_type == PT_LOAD \ | |
6831 | || segment->p_type == PT_TLS \ | |
6832 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6833 | && (segment->p_type != PT_DYNAMIC \ | |
6834 | || SECTION_SIZE (section, segment) > 0 \ | |
6835 | || (segment->p_paddr \ | |
6836 | ? segment->p_paddr != section->lma \ | |
6837 | : segment->p_vaddr != section->vma) \ | |
6838 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
6839 | == 0)) \ | |
9933dc52 | 6840 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6841 | |
9f17e2a6 L |
6842 | /* If the output section of a section in the input segment is NULL, |
6843 | it is removed from the corresponding output segment. */ | |
6844 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6845 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6846 | && section->output_section != NULL) | |
6847 | ||
b34976b6 | 6848 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6849 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6850 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6851 | ||
6852 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6853 | their VMA address ranges and their LMA address ranges overlap. | |
6854 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6855 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6856 | to the same VMA range, but with the .data section mapped to a different | |
6857 | LMA. */ | |
aecc8f8a | 6858 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6859 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6860 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6861 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6862 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6863 | |
6864 | /* Initialise the segment mark field. */ | |
6865 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6866 | section->segment_mark = FALSE; |
bc67d8a6 | 6867 | |
5c44b38e AM |
6868 | /* The Solaris linker creates program headers in which all the |
6869 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6870 | file, we get confused. Check for this case, and if we find it | |
6871 | don't set the p_paddr_valid fields. */ | |
6872 | p_paddr_valid = FALSE; | |
6873 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6874 | i < num_segments; | |
6875 | i++, segment++) | |
6876 | if (segment->p_paddr != 0) | |
6877 | { | |
6878 | p_paddr_valid = TRUE; | |
6879 | break; | |
6880 | } | |
6881 | ||
252b5132 | 6882 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6883 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6884 | in the loadable segments. These can be created by weird |
aecc8f8a | 6885 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6886 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6887 | i < num_segments; | |
c044fabd | 6888 | i++, segment++) |
252b5132 | 6889 | { |
252b5132 | 6890 | unsigned int j; |
c044fabd | 6891 | Elf_Internal_Phdr *segment2; |
252b5132 | 6892 | |
aecc8f8a AM |
6893 | if (segment->p_type == PT_INTERP) |
6894 | for (section = ibfd->sections; section; section = section->next) | |
6895 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6896 | { | |
6897 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6898 | assignment code will work. */ |
aecc8f8a AM |
6899 | segment->p_vaddr = section->vma; |
6900 | break; | |
6901 | } | |
6902 | ||
bc67d8a6 | 6903 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6904 | { |
6905 | /* Remove PT_GNU_RELRO segment. */ | |
6906 | if (segment->p_type == PT_GNU_RELRO) | |
6907 | segment->p_type = PT_NULL; | |
6908 | continue; | |
6909 | } | |
c044fabd | 6910 | |
bc67d8a6 | 6911 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6912 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6913 | { |
6914 | bfd_signed_vma extra_length; | |
c044fabd | 6915 | |
bc67d8a6 | 6916 | if (segment2->p_type != PT_LOAD |
0067a569 | 6917 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6918 | continue; |
c044fabd | 6919 | |
bc67d8a6 NC |
6920 | /* Merge the two segments together. */ |
6921 | if (segment2->p_vaddr < segment->p_vaddr) | |
6922 | { | |
c044fabd | 6923 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6924 | SEGMENT. */ |
0067a569 AM |
6925 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6926 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6927 | |
bc67d8a6 NC |
6928 | if (extra_length > 0) |
6929 | { | |
0067a569 | 6930 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6931 | segment2->p_filesz += extra_length; |
6932 | } | |
c044fabd | 6933 | |
bc67d8a6 | 6934 | segment->p_type = PT_NULL; |
c044fabd | 6935 | |
bc67d8a6 NC |
6936 | /* Since we have deleted P we must restart the outer loop. */ |
6937 | i = 0; | |
6938 | segment = elf_tdata (ibfd)->phdr; | |
6939 | break; | |
6940 | } | |
6941 | else | |
6942 | { | |
c044fabd | 6943 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6944 | SEGMENT2. */ |
0067a569 AM |
6945 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6946 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6947 | |
bc67d8a6 NC |
6948 | if (extra_length > 0) |
6949 | { | |
0067a569 | 6950 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
6951 | segment->p_filesz += extra_length; |
6952 | } | |
c044fabd | 6953 | |
bc67d8a6 NC |
6954 | segment2->p_type = PT_NULL; |
6955 | } | |
6956 | } | |
6957 | } | |
c044fabd | 6958 | |
bc67d8a6 NC |
6959 | /* The second scan attempts to assign sections to segments. */ |
6960 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6961 | i < num_segments; | |
0067a569 | 6962 | i++, segment++) |
bc67d8a6 | 6963 | { |
0067a569 AM |
6964 | unsigned int section_count; |
6965 | asection **sections; | |
6966 | asection *output_section; | |
6967 | unsigned int isec; | |
9933dc52 AM |
6968 | asection *matching_lma; |
6969 | asection *suggested_lma; | |
0067a569 | 6970 | unsigned int j; |
dc810e39 | 6971 | bfd_size_type amt; |
0067a569 | 6972 | asection *first_section; |
bc67d8a6 NC |
6973 | |
6974 | if (segment->p_type == PT_NULL) | |
6975 | continue; | |
c044fabd | 6976 | |
9f17e2a6 | 6977 | first_section = NULL; |
bc67d8a6 | 6978 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
6979 | for (section = ibfd->sections, section_count = 0; |
6980 | section != NULL; | |
6981 | section = section->next) | |
9f17e2a6 L |
6982 | { |
6983 | /* Find the first section in the input segment, which may be | |
6984 | removed from the corresponding output segment. */ | |
6985 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
6986 | { | |
6987 | if (first_section == NULL) | |
6988 | first_section = section; | |
6989 | if (section->output_section != NULL) | |
6990 | ++section_count; | |
6991 | } | |
6992 | } | |
811072d8 | 6993 | |
b5f852ea NC |
6994 | /* Allocate a segment map big enough to contain |
6995 | all of the sections we have selected. */ | |
00bee008 AM |
6996 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
6997 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 6998 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6999 | if (map == NULL) |
b34976b6 | 7000 | return FALSE; |
252b5132 RH |
7001 | |
7002 | /* Initialise the fields of the segment map. Default to | |
7003 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
7004 | map->next = NULL; |
7005 | map->p_type = segment->p_type; | |
7006 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 7007 | map->p_flags_valid = 1; |
55d55ac7 | 7008 | |
9f17e2a6 L |
7009 | /* If the first section in the input segment is removed, there is |
7010 | no need to preserve segment physical address in the corresponding | |
7011 | output segment. */ | |
945c025a | 7012 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
7013 | { |
7014 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 7015 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 7016 | } |
252b5132 RH |
7017 | |
7018 | /* Determine if this segment contains the ELF file header | |
7019 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7020 | map->includes_filehdr = (segment->p_offset == 0 |
7021 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7022 | map->includes_phdrs = 0; |
252b5132 | 7023 | |
0067a569 | 7024 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7025 | { |
bc67d8a6 NC |
7026 | map->includes_phdrs = |
7027 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7028 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7029 | >= ((bfd_vma) iehdr->e_phoff |
7030 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7031 | |
bc67d8a6 | 7032 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 7033 | phdr_included = TRUE; |
252b5132 RH |
7034 | } |
7035 | ||
bc67d8a6 | 7036 | if (section_count == 0) |
252b5132 RH |
7037 | { |
7038 | /* Special segments, such as the PT_PHDR segment, may contain | |
7039 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7040 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7041 | a warning is produced. |
f98450c6 NC |
7042 | There is however the valid use case of embedded systems which |
7043 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7044 | flash memory with zeros. No warning is shown for that case. */ | |
7045 | if (segment->p_type == PT_LOAD | |
7046 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7047 | /* xgettext:c-format */ | |
9793eb77 AM |
7048 | _bfd_error_handler |
7049 | (_("%pB: warning: empty loadable segment detected" | |
7050 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7051 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7052 | |
5d695627 | 7053 | map->p_vaddr_offset = segment->p_vaddr; |
bc67d8a6 | 7054 | map->count = 0; |
c044fabd KH |
7055 | *pointer_to_map = map; |
7056 | pointer_to_map = &map->next; | |
252b5132 RH |
7057 | |
7058 | continue; | |
7059 | } | |
7060 | ||
7061 | /* Now scan the sections in the input BFD again and attempt | |
7062 | to add their corresponding output sections to the segment map. | |
7063 | The problem here is how to handle an output section which has | |
7064 | been moved (ie had its LMA changed). There are four possibilities: | |
7065 | ||
7066 | 1. None of the sections have been moved. | |
7067 | In this case we can continue to use the segment LMA from the | |
7068 | input BFD. | |
7069 | ||
7070 | 2. All of the sections have been moved by the same amount. | |
7071 | In this case we can change the segment's LMA to match the LMA | |
7072 | of the first section. | |
7073 | ||
7074 | 3. Some of the sections have been moved, others have not. | |
7075 | In this case those sections which have not been moved can be | |
7076 | placed in the current segment which will have to have its size, | |
7077 | and possibly its LMA changed, and a new segment or segments will | |
7078 | have to be created to contain the other sections. | |
7079 | ||
b5f852ea | 7080 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7081 | In this case we can change the segment's LMA to match the LMA |
7082 | of the first section and we will have to create a new segment | |
7083 | or segments to contain the other sections. | |
7084 | ||
7085 | In order to save time, we allocate an array to hold the section | |
7086 | pointers that we are interested in. As these sections get assigned | |
7087 | to a segment, they are removed from this array. */ | |
7088 | ||
a50b1753 | 7089 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 7090 | if (sections == NULL) |
b34976b6 | 7091 | return FALSE; |
252b5132 RH |
7092 | |
7093 | /* Step One: Scan for segment vs section LMA conflicts. | |
7094 | Also add the sections to the section array allocated above. | |
7095 | Also add the sections to the current segment. In the common | |
7096 | case, where the sections have not been moved, this means that | |
7097 | we have completely filled the segment, and there is nothing | |
7098 | more to do. */ | |
252b5132 | 7099 | isec = 0; |
9933dc52 AM |
7100 | matching_lma = NULL; |
7101 | suggested_lma = NULL; | |
252b5132 | 7102 | |
461c4b2e | 7103 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7104 | section != NULL; |
7105 | section = section->next) | |
252b5132 | 7106 | { |
caf47ea6 | 7107 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 7108 | { |
bc67d8a6 NC |
7109 | output_section = section->output_section; |
7110 | ||
0067a569 | 7111 | sections[j++] = section; |
252b5132 RH |
7112 | |
7113 | /* The Solaris native linker always sets p_paddr to 0. | |
7114 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7115 | correct value. Note - some backends require that |
7116 | p_paddr be left as zero. */ | |
5c44b38e | 7117 | if (!p_paddr_valid |
4455705d | 7118 | && segment->p_vaddr != 0 |
0067a569 | 7119 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7120 | && isec == 0 |
bc67d8a6 | 7121 | && output_section->lma != 0 |
9933dc52 AM |
7122 | && (align_power (segment->p_vaddr |
7123 | + (map->includes_filehdr | |
7124 | ? iehdr->e_ehsize : 0) | |
7125 | + (map->includes_phdrs | |
7126 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7127 | : 0), | |
7128 | output_section->alignment_power) | |
7129 | == output_section->vma)) | |
bc67d8a6 | 7130 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7131 | |
7132 | /* Match up the physical address of the segment with the | |
7133 | LMA address of the output section. */ | |
bc67d8a6 | 7134 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 7135 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
7136 | || (bed->want_p_paddr_set_to_zero |
7137 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 7138 | { |
9933dc52 AM |
7139 | if (matching_lma == NULL |
7140 | || output_section->lma < matching_lma->lma) | |
7141 | matching_lma = output_section; | |
252b5132 RH |
7142 | |
7143 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7144 | then it does not overlap any other section within that |
252b5132 | 7145 | segment. */ |
0067a569 AM |
7146 | map->sections[isec++] = output_section; |
7147 | } | |
9933dc52 AM |
7148 | else if (suggested_lma == NULL) |
7149 | suggested_lma = output_section; | |
147d51c2 L |
7150 | |
7151 | if (j == section_count) | |
7152 | break; | |
252b5132 RH |
7153 | } |
7154 | } | |
7155 | ||
bc67d8a6 | 7156 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7157 | |
7158 | /* Step Two: Adjust the physical address of the current segment, | |
7159 | if necessary. */ | |
bc67d8a6 | 7160 | if (isec == section_count) |
252b5132 RH |
7161 | { |
7162 | /* All of the sections fitted within the segment as currently | |
7163 | specified. This is the default case. Add the segment to | |
7164 | the list of built segments and carry on to process the next | |
7165 | program header in the input BFD. */ | |
bc67d8a6 | 7166 | map->count = section_count; |
c044fabd KH |
7167 | *pointer_to_map = map; |
7168 | pointer_to_map = &map->next; | |
08a40648 | 7169 | |
5c44b38e AM |
7170 | if (p_paddr_valid |
7171 | && !bed->want_p_paddr_set_to_zero | |
9933dc52 | 7172 | && matching_lma->lma != map->p_paddr |
5c44b38e AM |
7173 | && !map->includes_filehdr |
7174 | && !map->includes_phdrs) | |
3271a814 NS |
7175 | /* There is some padding before the first section in the |
7176 | segment. So, we must account for that in the output | |
7177 | segment's vma. */ | |
5d695627 | 7178 | map->p_vaddr_offset = map->p_paddr - matching_lma->lma; |
08a40648 | 7179 | |
252b5132 RH |
7180 | free (sections); |
7181 | continue; | |
7182 | } | |
252b5132 RH |
7183 | else |
7184 | { | |
9933dc52 AM |
7185 | /* Change the current segment's physical address to match |
7186 | the LMA of the first section that fitted, or if no | |
7187 | section fitted, the first section. */ | |
7188 | if (matching_lma == NULL) | |
7189 | matching_lma = suggested_lma; | |
7190 | ||
7191 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7192 | |
bc67d8a6 NC |
7193 | /* Offset the segment physical address from the lma |
7194 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7195 | if (map->includes_phdrs) |
010c8431 | 7196 | { |
9933dc52 AM |
7197 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7198 | ||
7199 | /* iehdr->e_phnum is just an estimate of the number | |
7200 | of program headers that we will need. Make a note | |
7201 | here of the number we used and the segment we chose | |
7202 | to hold these headers, so that we can adjust the | |
7203 | offset when we know the correct value. */ | |
7204 | phdr_adjust_num = iehdr->e_phnum; | |
7205 | phdr_adjust_seg = map; | |
010c8431 | 7206 | } |
252b5132 | 7207 | |
9933dc52 | 7208 | if (map->includes_filehdr) |
bc67d8a6 | 7209 | { |
9933dc52 AM |
7210 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7211 | map->p_paddr -= iehdr->e_ehsize; | |
7212 | /* We've subtracted off the size of headers from the | |
7213 | first section lma, but there may have been some | |
7214 | alignment padding before that section too. Try to | |
7215 | account for that by adjusting the segment lma down to | |
7216 | the same alignment. */ | |
7217 | if (segment->p_align != 0 && segment->p_align < align) | |
7218 | align = segment->p_align; | |
7219 | map->p_paddr &= -align; | |
bc67d8a6 | 7220 | } |
252b5132 RH |
7221 | } |
7222 | ||
7223 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7224 | those that fit to the current segment and removing them from the |
252b5132 RH |
7225 | sections array; but making sure not to leave large gaps. Once all |
7226 | possible sections have been assigned to the current segment it is | |
7227 | added to the list of built segments and if sections still remain | |
7228 | to be assigned, a new segment is constructed before repeating | |
7229 | the loop. */ | |
7230 | isec = 0; | |
7231 | do | |
7232 | { | |
bc67d8a6 | 7233 | map->count = 0; |
9933dc52 | 7234 | suggested_lma = NULL; |
252b5132 RH |
7235 | |
7236 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7237 | for (j = 0; j < section_count; j++) |
252b5132 | 7238 | { |
bc67d8a6 | 7239 | section = sections[j]; |
252b5132 | 7240 | |
bc67d8a6 | 7241 | if (section == NULL) |
252b5132 RH |
7242 | continue; |
7243 | ||
bc67d8a6 | 7244 | output_section = section->output_section; |
252b5132 | 7245 | |
bc67d8a6 | 7246 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7247 | |
bc67d8a6 NC |
7248 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7249 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7250 | { |
bc67d8a6 | 7251 | if (map->count == 0) |
252b5132 RH |
7252 | { |
7253 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7254 | the beginning of the segment, then something is |
7255 | wrong. */ | |
9933dc52 AM |
7256 | if (align_power (map->p_paddr |
7257 | + (map->includes_filehdr | |
7258 | ? iehdr->e_ehsize : 0) | |
7259 | + (map->includes_phdrs | |
7260 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7261 | : 0), | |
7262 | output_section->alignment_power) | |
7263 | != output_section->lma) | |
252b5132 RH |
7264 | abort (); |
7265 | } | |
7266 | else | |
7267 | { | |
0067a569 | 7268 | asection *prev_sec; |
252b5132 | 7269 | |
bc67d8a6 | 7270 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7271 | |
7272 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7273 | and the start of this section is more than |
7274 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7275 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7276 | maxpagesize) |
caf47ea6 | 7277 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7278 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7279 | > output_section->lma)) |
252b5132 | 7280 | { |
9933dc52 AM |
7281 | if (suggested_lma == NULL) |
7282 | suggested_lma = output_section; | |
252b5132 RH |
7283 | |
7284 | continue; | |
7285 | } | |
7286 | } | |
7287 | ||
bc67d8a6 | 7288 | map->sections[map->count++] = output_section; |
252b5132 RH |
7289 | ++isec; |
7290 | sections[j] = NULL; | |
9933dc52 AM |
7291 | if (segment->p_type == PT_LOAD) |
7292 | section->segment_mark = TRUE; | |
0067a569 | 7293 | } |
9933dc52 AM |
7294 | else if (suggested_lma == NULL) |
7295 | suggested_lma = output_section; | |
252b5132 RH |
7296 | } |
7297 | ||
beab4532 NC |
7298 | /* PR 23932. A corrupt input file may contain sections that cannot |
7299 | be assigned to any segment - because for example they have a | |
7300 | negative size - or segments that do not contain any sections. */ | |
7301 | if (map->count == 0) | |
7302 | { | |
7303 | bfd_set_error (bfd_error_bad_value); | |
7304 | free (sections); | |
7305 | return FALSE; | |
7306 | } | |
252b5132 RH |
7307 | |
7308 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7309 | *pointer_to_map = map; |
7310 | pointer_to_map = &map->next; | |
252b5132 | 7311 | |
bc67d8a6 | 7312 | if (isec < section_count) |
252b5132 RH |
7313 | { |
7314 | /* We still have not allocated all of the sections to | |
7315 | segments. Create a new segment here, initialise it | |
7316 | and carry on looping. */ | |
00bee008 AM |
7317 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7318 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
5964fc3a | 7319 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7320 | if (map == NULL) |
5ed6aba4 NC |
7321 | { |
7322 | free (sections); | |
7323 | return FALSE; | |
7324 | } | |
252b5132 RH |
7325 | |
7326 | /* Initialise the fields of the segment map. Set the physical | |
7327 | physical address to the LMA of the first section that has | |
7328 | not yet been assigned. */ | |
0067a569 AM |
7329 | map->next = NULL; |
7330 | map->p_type = segment->p_type; | |
7331 | map->p_flags = segment->p_flags; | |
7332 | map->p_flags_valid = 1; | |
9933dc52 | 7333 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7334 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7335 | map->includes_filehdr = 0; |
0067a569 | 7336 | map->includes_phdrs = 0; |
252b5132 RH |
7337 | } |
7338 | } | |
bc67d8a6 | 7339 | while (isec < section_count); |
252b5132 RH |
7340 | |
7341 | free (sections); | |
7342 | } | |
7343 | ||
12bd6957 | 7344 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7345 | |
7346 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7347 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7348 | the offset if necessary. */ |
7349 | if (phdr_adjust_seg != NULL) | |
7350 | { | |
7351 | unsigned int count; | |
c044fabd | 7352 | |
bc67d8a6 | 7353 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7354 | count++; |
252b5132 | 7355 | |
bc67d8a6 NC |
7356 | if (count > phdr_adjust_num) |
7357 | phdr_adjust_seg->p_paddr | |
7358 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7359 | |
7360 | for (map = map_first; map != NULL; map = map->next) | |
7361 | if (map->p_type == PT_PHDR) | |
7362 | { | |
7363 | bfd_vma adjust | |
7364 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7365 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7366 | break; | |
7367 | } | |
bc67d8a6 | 7368 | } |
c044fabd | 7369 | |
bc67d8a6 | 7370 | #undef SEGMENT_END |
eecdbe52 | 7371 | #undef SECTION_SIZE |
bc67d8a6 NC |
7372 | #undef IS_CONTAINED_BY_VMA |
7373 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7374 | #undef IS_NOTE |
252b5132 | 7375 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7376 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7377 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7378 | #undef INCLUDE_SECTION_IN_SEGMENT |
7379 | #undef SEGMENT_AFTER_SEGMENT | |
7380 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7381 | return TRUE; |
252b5132 RH |
7382 | } |
7383 | ||
84d1d650 L |
7384 | /* Copy ELF program header information. */ |
7385 | ||
7386 | static bfd_boolean | |
7387 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7388 | { | |
7389 | Elf_Internal_Ehdr *iehdr; | |
7390 | struct elf_segment_map *map; | |
7391 | struct elf_segment_map *map_first; | |
7392 | struct elf_segment_map **pointer_to_map; | |
7393 | Elf_Internal_Phdr *segment; | |
7394 | unsigned int i; | |
7395 | unsigned int num_segments; | |
7396 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7397 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7398 | |
7399 | iehdr = elf_elfheader (ibfd); | |
7400 | ||
7401 | map_first = NULL; | |
7402 | pointer_to_map = &map_first; | |
7403 | ||
88967714 AM |
7404 | /* If all the segment p_paddr fields are zero, don't set |
7405 | map->p_paddr_valid. */ | |
7406 | p_paddr_valid = FALSE; | |
84d1d650 | 7407 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7408 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7409 | i < num_segments; | |
7410 | i++, segment++) | |
7411 | if (segment->p_paddr != 0) | |
7412 | { | |
7413 | p_paddr_valid = TRUE; | |
7414 | break; | |
7415 | } | |
7416 | ||
84d1d650 L |
7417 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7418 | i < num_segments; | |
7419 | i++, segment++) | |
7420 | { | |
7421 | asection *section; | |
7422 | unsigned int section_count; | |
7423 | bfd_size_type amt; | |
7424 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 7425 | asection *first_section = NULL; |
a76e6f2f | 7426 | asection *lowest_section; |
2542e49e | 7427 | bfd_boolean no_contents = TRUE; |
84d1d650 | 7428 | |
84d1d650 L |
7429 | /* Compute how many sections are in this segment. */ |
7430 | for (section = ibfd->sections, section_count = 0; | |
7431 | section != NULL; | |
7432 | section = section->next) | |
7433 | { | |
7434 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7435 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7436 | { |
a76e6f2f AM |
7437 | if (first_section == NULL) |
7438 | first_section = section; | |
2542e49e JL |
7439 | if (elf_section_type (section) != SHT_NOBITS) |
7440 | no_contents = FALSE; | |
3271a814 NS |
7441 | section_count++; |
7442 | } | |
84d1d650 L |
7443 | } |
7444 | ||
7445 | /* Allocate a segment map big enough to contain | |
7446 | all of the sections we have selected. */ | |
00bee008 AM |
7447 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7448 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 7449 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7450 | if (map == NULL) |
7451 | return FALSE; | |
7452 | ||
7453 | /* Initialize the fields of the output segment map with the | |
7454 | input segment. */ | |
7455 | map->next = NULL; | |
7456 | map->p_type = segment->p_type; | |
7457 | map->p_flags = segment->p_flags; | |
7458 | map->p_flags_valid = 1; | |
7459 | map->p_paddr = segment->p_paddr; | |
88967714 | 7460 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7461 | map->p_align = segment->p_align; |
7462 | map->p_align_valid = 1; | |
3271a814 | 7463 | map->p_vaddr_offset = 0; |
84d1d650 | 7464 | |
04c3a755 NS |
7465 | if (map->p_type == PT_GNU_RELRO |
7466 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7467 | { |
7468 | /* The PT_GNU_RELRO segment may contain the first a few | |
7469 | bytes in the .got.plt section even if the whole .got.plt | |
7470 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7471 | change the size of the PT_GNU_RELRO segment. |
7472 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7473 | systems. */ | |
9433b9b1 | 7474 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7475 | map->p_size_valid = 1; |
7476 | } | |
7477 | ||
84d1d650 L |
7478 | /* Determine if this segment contains the ELF file header |
7479 | and if it contains the program headers themselves. */ | |
7480 | map->includes_filehdr = (segment->p_offset == 0 | |
7481 | && segment->p_filesz >= iehdr->e_ehsize); | |
7482 | ||
7483 | map->includes_phdrs = 0; | |
7484 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7485 | { | |
7486 | map->includes_phdrs = | |
7487 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7488 | && (segment->p_offset + segment->p_filesz | |
7489 | >= ((bfd_vma) iehdr->e_phoff | |
7490 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7491 | ||
7492 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7493 | phdr_included = TRUE; | |
7494 | } | |
7495 | ||
bbefd0a9 | 7496 | lowest_section = NULL; |
84d1d650 L |
7497 | if (section_count != 0) |
7498 | { | |
7499 | unsigned int isec = 0; | |
7500 | ||
53020534 | 7501 | for (section = first_section; |
84d1d650 L |
7502 | section != NULL; |
7503 | section = section->next) | |
7504 | { | |
7505 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7506 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7507 | { |
7508 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7509 | if ((section->flags & SEC_ALLOC) != 0) |
7510 | { | |
7511 | bfd_vma seg_off; | |
7512 | ||
bbefd0a9 AM |
7513 | if (lowest_section == NULL |
7514 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7515 | lowest_section = section; |
7516 | ||
a76e6f2f AM |
7517 | /* Section lmas are set up from PT_LOAD header |
7518 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7519 | If this header has a p_paddr that disagrees | |
7520 | with the section lma, flag the p_paddr as | |
7521 | invalid. */ | |
7522 | if ((section->flags & SEC_LOAD) != 0) | |
7523 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7524 | else | |
7525 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7526 | if (section->lma - segment->p_paddr != seg_off) | |
7527 | map->p_paddr_valid = FALSE; | |
7528 | } | |
53020534 L |
7529 | if (isec == section_count) |
7530 | break; | |
7531 | } | |
84d1d650 L |
7532 | } |
7533 | } | |
7534 | ||
a76e6f2f | 7535 | if (map->includes_filehdr && lowest_section != NULL) |
2542e49e JL |
7536 | { |
7537 | /* Try to keep the space used by the headers plus any | |
7538 | padding fixed. If there are sections with file contents | |
7539 | in this segment then the lowest sh_offset is the best | |
7540 | guess. Otherwise the segment only has file contents for | |
7541 | the headers, and p_filesz is the best guess. */ | |
7542 | if (no_contents) | |
7543 | map->header_size = segment->p_filesz; | |
7544 | else | |
7545 | map->header_size = lowest_section->filepos; | |
7546 | } | |
d324f6d6 | 7547 | |
5d695627 AM |
7548 | if (section_count == 0) |
7549 | map->p_vaddr_offset = segment->p_vaddr; | |
7550 | else if (!map->includes_phdrs | |
7551 | && !map->includes_filehdr | |
7552 | && map->p_paddr_valid) | |
7553 | /* Account for padding before the first section. */ | |
7554 | map->p_vaddr_offset = (segment->p_paddr | |
7555 | - (lowest_section ? lowest_section->lma : 0)); | |
a76e6f2f | 7556 | |
84d1d650 L |
7557 | map->count = section_count; |
7558 | *pointer_to_map = map; | |
7559 | pointer_to_map = &map->next; | |
7560 | } | |
7561 | ||
12bd6957 | 7562 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7563 | return TRUE; |
7564 | } | |
7565 | ||
7566 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7567 | information. */ | |
7568 | ||
7569 | static bfd_boolean | |
7570 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7571 | { | |
84d1d650 L |
7572 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7573 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7574 | return TRUE; | |
7575 | ||
7576 | if (elf_tdata (ibfd)->phdr == NULL) | |
7577 | return TRUE; | |
7578 | ||
7579 | if (ibfd->xvec == obfd->xvec) | |
7580 | { | |
cb3ff1e5 NC |
7581 | /* Check to see if any sections in the input BFD |
7582 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7583 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7584 | asection *section, *osec; |
7585 | unsigned int i, num_segments; | |
7586 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7587 | const struct elf_backend_data *bed; |
7588 | ||
7589 | bed = get_elf_backend_data (ibfd); | |
7590 | ||
7591 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7592 | if (bed->want_p_paddr_set_to_zero) | |
7593 | goto rewrite; | |
84d1d650 L |
7594 | |
7595 | /* Initialize the segment mark field. */ | |
7596 | for (section = obfd->sections; section != NULL; | |
7597 | section = section->next) | |
7598 | section->segment_mark = FALSE; | |
7599 | ||
7600 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7601 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7602 | i < num_segments; | |
7603 | i++, segment++) | |
7604 | { | |
5f6999aa NC |
7605 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7606 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7607 | which severly confuses things, so always regenerate the segment | |
7608 | map in this case. */ | |
7609 | if (segment->p_paddr == 0 | |
7610 | && segment->p_memsz == 0 | |
7611 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7612 | goto rewrite; |
5f6999aa | 7613 | |
84d1d650 L |
7614 | for (section = ibfd->sections; |
7615 | section != NULL; section = section->next) | |
7616 | { | |
7617 | /* We mark the output section so that we know it comes | |
7618 | from the input BFD. */ | |
7619 | osec = section->output_section; | |
7620 | if (osec) | |
7621 | osec->segment_mark = TRUE; | |
7622 | ||
7623 | /* Check if this section is covered by the segment. */ | |
7624 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7625 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7626 | { |
7627 | /* FIXME: Check if its output section is changed or | |
7628 | removed. What else do we need to check? */ | |
7629 | if (osec == NULL | |
7630 | || section->flags != osec->flags | |
7631 | || section->lma != osec->lma | |
7632 | || section->vma != osec->vma | |
7633 | || section->size != osec->size | |
7634 | || section->rawsize != osec->rawsize | |
7635 | || section->alignment_power != osec->alignment_power) | |
7636 | goto rewrite; | |
7637 | } | |
7638 | } | |
7639 | } | |
7640 | ||
cb3ff1e5 | 7641 | /* Check to see if any output section do not come from the |
84d1d650 L |
7642 | input BFD. */ |
7643 | for (section = obfd->sections; section != NULL; | |
7644 | section = section->next) | |
7645 | { | |
535b785f | 7646 | if (!section->segment_mark) |
84d1d650 L |
7647 | goto rewrite; |
7648 | else | |
7649 | section->segment_mark = FALSE; | |
7650 | } | |
7651 | ||
7652 | return copy_elf_program_header (ibfd, obfd); | |
7653 | } | |
7654 | ||
7655 | rewrite: | |
f1d85785 L |
7656 | if (ibfd->xvec == obfd->xvec) |
7657 | { | |
7658 | /* When rewriting program header, set the output maxpagesize to | |
7659 | the maximum alignment of input PT_LOAD segments. */ | |
7660 | Elf_Internal_Phdr *segment; | |
7661 | unsigned int i; | |
7662 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7663 | bfd_vma maxpagesize = 0; | |
7664 | ||
7665 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7666 | i < num_segments; | |
7667 | i++, segment++) | |
7668 | if (segment->p_type == PT_LOAD | |
7669 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7670 | { |
7671 | /* PR 17512: file: f17299af. */ | |
7672 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7673 | /* xgettext:c-format */ |
2dcf00ce AM |
7674 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7675 | PRIx64 " is too large"), | |
7676 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7677 | else |
7678 | maxpagesize = segment->p_align; | |
7679 | } | |
f1d85785 L |
7680 | |
7681 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7682 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7683 | } | |
7684 | ||
84d1d650 L |
7685 | return rewrite_elf_program_header (ibfd, obfd); |
7686 | } | |
7687 | ||
ccd2ec6a L |
7688 | /* Initialize private output section information from input section. */ |
7689 | ||
7690 | bfd_boolean | |
7691 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7692 | asection *isec, | |
7693 | bfd *obfd, | |
7694 | asection *osec, | |
7695 | struct bfd_link_info *link_info) | |
7696 | ||
7697 | { | |
7698 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7699 | bfd_boolean final_link = (link_info != NULL |
7700 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7701 | |
7702 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7703 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7704 | return TRUE; | |
7705 | ||
ba85c43e NC |
7706 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7707 | ||
dfa7b0b8 AM |
7708 | /* For objcopy and relocatable link, don't copy the output ELF |
7709 | section type from input if the output BFD section flags have been | |
7710 | set to something different. For a final link allow some flags | |
7711 | that the linker clears to differ. */ | |
42bb2e33 | 7712 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7713 | && (osec->flags == isec->flags |
7714 | || (final_link | |
7715 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7716 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7717 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7718 | |
7719 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7720 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7721 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7722 | |
a91e1603 | 7723 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7724 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7725 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7726 | elf_section_data (osec)->this_hdr.sh_info |
7727 | = elf_section_data (isec)->this_hdr.sh_info; | |
7728 | ||
ccd2ec6a L |
7729 | /* Set things up for objcopy and relocatable link. The output |
7730 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7731 | to the input group members. Ignore linker created group section. | |
7732 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7733 | if ((link_info == NULL |
7734 | || !link_info->resolve_section_groups) | |
7735 | && (elf_sec_group (isec) == NULL | |
7736 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7737 | { |
7bdf4127 AB |
7738 | if (elf_section_flags (isec) & SHF_GROUP) |
7739 | elf_section_flags (osec) |= SHF_GROUP; | |
7740 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7741 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7742 | } |
7743 | ||
7bdf4127 AB |
7744 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7745 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7746 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7747 | & SHF_COMPRESSED); | |
7748 | ||
ccd2ec6a L |
7749 | ihdr = &elf_section_data (isec)->this_hdr; |
7750 | ||
7751 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7752 | don't use the output section of the linked-to section since it | |
7753 | may be NULL at this point. */ | |
7754 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7755 | { | |
7756 | ohdr = &elf_section_data (osec)->this_hdr; | |
7757 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7758 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7759 | } | |
7760 | ||
7761 | osec->use_rela_p = isec->use_rela_p; | |
7762 | ||
7763 | return TRUE; | |
7764 | } | |
7765 | ||
252b5132 RH |
7766 | /* Copy private section information. This copies over the entsize |
7767 | field, and sometimes the info field. */ | |
7768 | ||
b34976b6 | 7769 | bfd_boolean |
217aa764 AM |
7770 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7771 | asection *isec, | |
7772 | bfd *obfd, | |
7773 | asection *osec) | |
252b5132 RH |
7774 | { |
7775 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7776 | ||
7777 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7778 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7779 | return TRUE; |
252b5132 | 7780 | |
252b5132 RH |
7781 | ihdr = &elf_section_data (isec)->this_hdr; |
7782 | ohdr = &elf_section_data (osec)->this_hdr; | |
7783 | ||
7784 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7785 | ||
7786 | if (ihdr->sh_type == SHT_SYMTAB | |
7787 | || ihdr->sh_type == SHT_DYNSYM | |
7788 | || ihdr->sh_type == SHT_GNU_verneed | |
7789 | || ihdr->sh_type == SHT_GNU_verdef) | |
7790 | ohdr->sh_info = ihdr->sh_info; | |
7791 | ||
ccd2ec6a L |
7792 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7793 | NULL); | |
252b5132 RH |
7794 | } |
7795 | ||
d0bf826b AM |
7796 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7797 | necessary if we are removing either the SHT_GROUP section or any of | |
7798 | the group member sections. DISCARDED is the value that a section's | |
7799 | output_section has if the section will be discarded, NULL when this | |
7800 | function is called from objcopy, bfd_abs_section_ptr when called | |
7801 | from the linker. */ | |
80fccad2 BW |
7802 | |
7803 | bfd_boolean | |
d0bf826b | 7804 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7805 | { |
30288845 AM |
7806 | asection *isec; |
7807 | ||
30288845 | 7808 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7809 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7810 | { |
7811 | asection *first = elf_next_in_group (isec); | |
7812 | asection *s = first; | |
d0bf826b AM |
7813 | bfd_size_type removed = 0; |
7814 | ||
30288845 AM |
7815 | while (s != NULL) |
7816 | { | |
415f38a6 AM |
7817 | /* If this member section is being output but the |
7818 | SHT_GROUP section is not, then clear the group info | |
7819 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7820 | if (s->output_section != discarded |
7821 | && isec->output_section == discarded) | |
30288845 AM |
7822 | { |
7823 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7824 | elf_group_name (s->output_section) = NULL; | |
7825 | } | |
415f38a6 AM |
7826 | /* Conversely, if the member section is not being output |
7827 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7828 | else if (s->output_section == discarded |
7829 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7830 | { |
7831 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7832 | removed += 4; | |
7833 | if (elf_sec->rel.hdr != NULL | |
7834 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7835 | removed += 4; | |
7836 | if (elf_sec->rela.hdr != NULL | |
7837 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7838 | removed += 4; | |
7839 | } | |
30288845 AM |
7840 | s = elf_next_in_group (s); |
7841 | if (s == first) | |
7842 | break; | |
7843 | } | |
d0bf826b AM |
7844 | if (removed != 0) |
7845 | { | |
7846 | if (discarded != NULL) | |
7847 | { | |
7848 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7849 | adjust the input section size. */ |
d0bf826b AM |
7850 | if (isec->rawsize == 0) |
7851 | isec->rawsize = isec->size; | |
7852 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7853 | if (isec->size <= 4) |
7854 | { | |
7855 | isec->size = 0; | |
7856 | isec->flags |= SEC_EXCLUDE; | |
7857 | } | |
d0bf826b AM |
7858 | } |
7859 | else | |
7860 | { | |
7861 | /* Adjust the output section size when called from | |
7862 | objcopy. */ | |
7863 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7864 | if (isec->output_section->size <= 4) |
7865 | { | |
7866 | isec->output_section->size = 0; | |
7867 | isec->output_section->flags |= SEC_EXCLUDE; | |
7868 | } | |
d0bf826b AM |
7869 | } |
7870 | } | |
30288845 AM |
7871 | } |
7872 | ||
80fccad2 BW |
7873 | return TRUE; |
7874 | } | |
7875 | ||
d0bf826b AM |
7876 | /* Copy private header information. */ |
7877 | ||
7878 | bfd_boolean | |
7879 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7880 | { | |
7881 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7882 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7883 | return TRUE; | |
7884 | ||
7885 | /* Copy over private BFD data if it has not already been copied. | |
7886 | This must be done here, rather than in the copy_private_bfd_data | |
7887 | entry point, because the latter is called after the section | |
7888 | contents have been set, which means that the program headers have | |
7889 | already been worked out. */ | |
12bd6957 | 7890 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7891 | { |
7892 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7893 | return FALSE; | |
7894 | } | |
7895 | ||
7896 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7897 | } | |
7898 | ||
252b5132 RH |
7899 | /* Copy private symbol information. If this symbol is in a section |
7900 | which we did not map into a BFD section, try to map the section | |
7901 | index correctly. We use special macro definitions for the mapped | |
7902 | section indices; these definitions are interpreted by the | |
7903 | swap_out_syms function. */ | |
7904 | ||
9ad5cbcf AM |
7905 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7906 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7907 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7908 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7909 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7910 | |
b34976b6 | 7911 | bfd_boolean |
217aa764 AM |
7912 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7913 | asymbol *isymarg, | |
7914 | bfd *obfd, | |
7915 | asymbol *osymarg) | |
252b5132 RH |
7916 | { |
7917 | elf_symbol_type *isym, *osym; | |
7918 | ||
7919 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7920 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7921 | return TRUE; |
252b5132 RH |
7922 | |
7923 | isym = elf_symbol_from (ibfd, isymarg); | |
7924 | osym = elf_symbol_from (obfd, osymarg); | |
7925 | ||
7926 | if (isym != NULL | |
8424d8f5 | 7927 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7928 | && osym != NULL |
7929 | && bfd_is_abs_section (isym->symbol.section)) | |
7930 | { | |
7931 | unsigned int shndx; | |
7932 | ||
7933 | shndx = isym->internal_elf_sym.st_shndx; | |
7934 | if (shndx == elf_onesymtab (ibfd)) | |
7935 | shndx = MAP_ONESYMTAB; | |
7936 | else if (shndx == elf_dynsymtab (ibfd)) | |
7937 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7938 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7939 | shndx = MAP_STRTAB; |
12bd6957 | 7940 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7941 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7942 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7943 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7944 | osym->internal_elf_sym.st_shndx = shndx; |
7945 | } | |
7946 | ||
b34976b6 | 7947 | return TRUE; |
252b5132 RH |
7948 | } |
7949 | ||
7950 | /* Swap out the symbols. */ | |
7951 | ||
b34976b6 | 7952 | static bfd_boolean |
217aa764 | 7953 | swap_out_syms (bfd *abfd, |
ef10c3ac | 7954 | struct elf_strtab_hash **sttp, |
217aa764 | 7955 | int relocatable_p) |
252b5132 | 7956 | { |
9c5bfbb7 | 7957 | const struct elf_backend_data *bed; |
079e9a2f AM |
7958 | int symcount; |
7959 | asymbol **syms; | |
ef10c3ac | 7960 | struct elf_strtab_hash *stt; |
079e9a2f | 7961 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 7962 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 7963 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 7964 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
7965 | bfd_byte *outbound_syms; |
7966 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
7967 | unsigned long outbound_syms_index; |
7968 | unsigned long outbound_shndx_index; | |
079e9a2f | 7969 | int idx; |
12bd6957 | 7970 | unsigned int num_locals; |
079e9a2f | 7971 | bfd_size_type amt; |
174fd7f9 | 7972 | bfd_boolean name_local_sections; |
252b5132 | 7973 | |
12bd6957 | 7974 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 7975 | return FALSE; |
252b5132 | 7976 | |
c044fabd | 7977 | /* Dump out the symtabs. */ |
ef10c3ac | 7978 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 7979 | if (stt == NULL) |
b34976b6 | 7980 | return FALSE; |
252b5132 | 7981 | |
079e9a2f AM |
7982 | bed = get_elf_backend_data (abfd); |
7983 | symcount = bfd_get_symcount (abfd); | |
7984 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7985 | symtab_hdr->sh_type = SHT_SYMTAB; | |
7986 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
7987 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 7988 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 7989 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
7990 | |
7991 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
7992 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
7993 | ||
ef10c3ac | 7994 | /* Allocate buffer to swap out the .strtab section. */ |
7a6e0d89 AM |
7995 | symstrtab = (struct elf_sym_strtab *) bfd_malloc2 (symcount + 1, |
7996 | sizeof (*symstrtab)); | |
ef10c3ac L |
7997 | if (symstrtab == NULL) |
7998 | { | |
7999 | _bfd_elf_strtab_free (stt); | |
8000 | return FALSE; | |
8001 | } | |
8002 | ||
a50b1753 | 8003 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
07d6d2b8 | 8004 | bed->s->sizeof_sym); |
079e9a2f | 8005 | if (outbound_syms == NULL) |
5ed6aba4 | 8006 | { |
ef10c3ac L |
8007 | error_return: |
8008 | _bfd_elf_strtab_free (stt); | |
8009 | free (symstrtab); | |
5ed6aba4 NC |
8010 | return FALSE; |
8011 | } | |
217aa764 | 8012 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 8013 | outbound_syms_index = 0; |
252b5132 | 8014 | |
9ad5cbcf | 8015 | outbound_shndx = NULL; |
ef10c3ac | 8016 | outbound_shndx_index = 0; |
6a40cf0c NC |
8017 | |
8018 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8019 | { |
6a40cf0c NC |
8020 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8021 | if (symtab_shndx_hdr->sh_name != 0) | |
8022 | { | |
8023 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
8024 | outbound_shndx = (bfd_byte *) | |
8025 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
8026 | if (outbound_shndx == NULL) | |
8027 | goto error_return; | |
5ed6aba4 | 8028 | |
6a40cf0c NC |
8029 | symtab_shndx_hdr->contents = outbound_shndx; |
8030 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8031 | symtab_shndx_hdr->sh_size = amt; | |
8032 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8033 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8034 | } | |
8035 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8036 | } |
8037 | ||
589e6347 | 8038 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8039 | { |
8040 | /* Fill in zeroth symbol and swap it out. */ | |
8041 | Elf_Internal_Sym sym; | |
8042 | sym.st_name = 0; | |
8043 | sym.st_value = 0; | |
8044 | sym.st_size = 0; | |
8045 | sym.st_info = 0; | |
8046 | sym.st_other = 0; | |
8047 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8048 | sym.st_target_internal = 0; |
ef10c3ac L |
8049 | symstrtab[0].sym = sym; |
8050 | symstrtab[0].dest_index = outbound_syms_index; | |
8051 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8052 | outbound_syms_index++; | |
9ad5cbcf | 8053 | if (outbound_shndx != NULL) |
ef10c3ac | 8054 | outbound_shndx_index++; |
079e9a2f | 8055 | } |
252b5132 | 8056 | |
174fd7f9 RS |
8057 | name_local_sections |
8058 | = (bed->elf_backend_name_local_section_symbols | |
8059 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8060 | ||
079e9a2f | 8061 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8062 | for (idx = 0; idx < symcount;) |
252b5132 | 8063 | { |
252b5132 | 8064 | Elf_Internal_Sym sym; |
079e9a2f AM |
8065 | bfd_vma value = syms[idx]->value; |
8066 | elf_symbol_type *type_ptr; | |
8067 | flagword flags = syms[idx]->flags; | |
8068 | int type; | |
252b5132 | 8069 | |
174fd7f9 RS |
8070 | if (!name_local_sections |
8071 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8072 | { |
8073 | /* Local section symbols have no name. */ | |
ef10c3ac | 8074 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8075 | } |
8076 | else | |
8077 | { | |
ef10c3ac L |
8078 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8079 | to get the final offset for st_name. */ | |
8080 | sym.st_name | |
8081 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
8082 | FALSE); | |
079e9a2f | 8083 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8084 | goto error_return; |
079e9a2f | 8085 | } |
252b5132 | 8086 | |
079e9a2f | 8087 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 8088 | |
079e9a2f AM |
8089 | if ((flags & BSF_SECTION_SYM) == 0 |
8090 | && bfd_is_com_section (syms[idx]->section)) | |
8091 | { | |
8092 | /* ELF common symbols put the alignment into the `value' field, | |
8093 | and the size into the `size' field. This is backwards from | |
8094 | how BFD handles it, so reverse it here. */ | |
8095 | sym.st_size = value; | |
8096 | if (type_ptr == NULL | |
8097 | || type_ptr->internal_elf_sym.st_value == 0) | |
8098 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8099 | else | |
8100 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8101 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8102 | (abfd, syms[idx]->section); | |
8103 | } | |
8104 | else | |
8105 | { | |
8106 | asection *sec = syms[idx]->section; | |
cb33740c | 8107 | unsigned int shndx; |
252b5132 | 8108 | |
079e9a2f AM |
8109 | if (sec->output_section) |
8110 | { | |
8111 | value += sec->output_offset; | |
8112 | sec = sec->output_section; | |
8113 | } | |
589e6347 | 8114 | |
079e9a2f AM |
8115 | /* Don't add in the section vma for relocatable output. */ |
8116 | if (! relocatable_p) | |
8117 | value += sec->vma; | |
8118 | sym.st_value = value; | |
8119 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8120 | ||
8121 | if (bfd_is_abs_section (sec) | |
8122 | && type_ptr != NULL | |
8123 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8124 | { | |
8125 | /* This symbol is in a real ELF section which we did | |
8126 | not create as a BFD section. Undo the mapping done | |
8127 | by copy_private_symbol_data. */ | |
8128 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8129 | switch (shndx) | |
8130 | { | |
8131 | case MAP_ONESYMTAB: | |
8132 | shndx = elf_onesymtab (abfd); | |
8133 | break; | |
8134 | case MAP_DYNSYMTAB: | |
8135 | shndx = elf_dynsymtab (abfd); | |
8136 | break; | |
8137 | case MAP_STRTAB: | |
12bd6957 | 8138 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8139 | break; |
8140 | case MAP_SHSTRTAB: | |
12bd6957 | 8141 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8142 | break; |
9ad5cbcf | 8143 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8144 | if (elf_symtab_shndx_list (abfd)) |
8145 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8146 | break; |
079e9a2f | 8147 | default: |
15bc576a | 8148 | shndx = SHN_ABS; |
079e9a2f AM |
8149 | break; |
8150 | } | |
8151 | } | |
8152 | else | |
8153 | { | |
8154 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8155 | |
cb33740c | 8156 | if (shndx == SHN_BAD) |
079e9a2f AM |
8157 | { |
8158 | asection *sec2; | |
8159 | ||
8160 | /* Writing this would be a hell of a lot easier if | |
8161 | we had some decent documentation on bfd, and | |
8162 | knew what to expect of the library, and what to | |
8163 | demand of applications. For example, it | |
8164 | appears that `objcopy' might not set the | |
8165 | section of a symbol to be a section that is | |
8166 | actually in the output file. */ | |
8167 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8168 | if (sec2 != NULL) |
8169 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8170 | if (shndx == SHN_BAD) | |
589e6347 | 8171 | { |
695344c0 | 8172 | /* xgettext:c-format */ |
9793eb77 AM |
8173 | _bfd_error_handler |
8174 | (_("unable to find equivalent output section" | |
8175 | " for symbol '%s' from section '%s'"), | |
8176 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8177 | sec->name); | |
811072d8 | 8178 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8179 | goto error_return; |
589e6347 | 8180 | } |
079e9a2f AM |
8181 | } |
8182 | } | |
252b5132 | 8183 | |
079e9a2f AM |
8184 | sym.st_shndx = shndx; |
8185 | } | |
252b5132 | 8186 | |
13ae64f3 JJ |
8187 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8188 | type = STT_TLS; | |
d8045f23 NC |
8189 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8190 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8191 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8192 | type = STT_FUNC; |
8193 | else if ((flags & BSF_OBJECT) != 0) | |
8194 | type = STT_OBJECT; | |
d9352518 DB |
8195 | else if ((flags & BSF_RELC) != 0) |
8196 | type = STT_RELC; | |
8197 | else if ((flags & BSF_SRELC) != 0) | |
8198 | type = STT_SRELC; | |
079e9a2f AM |
8199 | else |
8200 | type = STT_NOTYPE; | |
252b5132 | 8201 | |
13ae64f3 JJ |
8202 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8203 | type = STT_TLS; | |
8204 | ||
589e6347 | 8205 | /* Processor-specific types. */ |
079e9a2f AM |
8206 | if (type_ptr != NULL |
8207 | && bed->elf_backend_get_symbol_type) | |
8208 | type = ((*bed->elf_backend_get_symbol_type) | |
8209 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8210 | |
079e9a2f AM |
8211 | if (flags & BSF_SECTION_SYM) |
8212 | { | |
8213 | if (flags & BSF_GLOBAL) | |
8214 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8215 | else | |
8216 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8217 | } | |
8218 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8219 | { |
b8871f35 L |
8220 | if (type != STT_TLS) |
8221 | { | |
8222 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8223 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8224 | ? STT_COMMON : STT_OBJECT); | |
8225 | else | |
8226 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8227 | ? STT_COMMON : STT_OBJECT); | |
8228 | } | |
8229 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8230 | } |
079e9a2f AM |
8231 | else if (bfd_is_und_section (syms[idx]->section)) |
8232 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8233 | ? STB_WEAK | |
8234 | : STB_GLOBAL), | |
8235 | type); | |
8236 | else if (flags & BSF_FILE) | |
8237 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8238 | else | |
8239 | { | |
8240 | int bind = STB_LOCAL; | |
252b5132 | 8241 | |
079e9a2f AM |
8242 | if (flags & BSF_LOCAL) |
8243 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8244 | else if (flags & BSF_GNU_UNIQUE) |
8245 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8246 | else if (flags & BSF_WEAK) |
8247 | bind = STB_WEAK; | |
8248 | else if (flags & BSF_GLOBAL) | |
8249 | bind = STB_GLOBAL; | |
252b5132 | 8250 | |
079e9a2f AM |
8251 | sym.st_info = ELF_ST_INFO (bind, type); |
8252 | } | |
252b5132 | 8253 | |
079e9a2f | 8254 | if (type_ptr != NULL) |
35fc36a8 RS |
8255 | { |
8256 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8257 | sym.st_target_internal | |
8258 | = type_ptr->internal_elf_sym.st_target_internal; | |
8259 | } | |
079e9a2f | 8260 | else |
35fc36a8 RS |
8261 | { |
8262 | sym.st_other = 0; | |
8263 | sym.st_target_internal = 0; | |
8264 | } | |
252b5132 | 8265 | |
ef10c3ac L |
8266 | idx++; |
8267 | symstrtab[idx].sym = sym; | |
8268 | symstrtab[idx].dest_index = outbound_syms_index; | |
8269 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8270 | ||
8271 | outbound_syms_index++; | |
9ad5cbcf | 8272 | if (outbound_shndx != NULL) |
ef10c3ac L |
8273 | outbound_shndx_index++; |
8274 | } | |
8275 | ||
8276 | /* Finalize the .strtab section. */ | |
8277 | _bfd_elf_strtab_finalize (stt); | |
8278 | ||
8279 | /* Swap out the .strtab section. */ | |
8280 | for (idx = 0; idx <= symcount; idx++) | |
8281 | { | |
8282 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8283 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8284 | elfsym->sym.st_name = 0; | |
8285 | else | |
8286 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8287 | elfsym->sym.st_name); | |
8288 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8289 | (outbound_syms | |
8290 | + (elfsym->dest_index | |
8291 | * bed->s->sizeof_sym)), | |
8292 | (outbound_shndx | |
8293 | + (elfsym->destshndx_index | |
8294 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8295 | } |
ef10c3ac | 8296 | free (symstrtab); |
252b5132 | 8297 | |
079e9a2f | 8298 | *sttp = stt; |
ef10c3ac | 8299 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8300 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8301 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8302 | symstrtab_hdr->sh_addr = 0; |
8303 | symstrtab_hdr->sh_entsize = 0; | |
8304 | symstrtab_hdr->sh_link = 0; | |
8305 | symstrtab_hdr->sh_info = 0; | |
8306 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8307 | |
b34976b6 | 8308 | return TRUE; |
252b5132 RH |
8309 | } |
8310 | ||
8311 | /* Return the number of bytes required to hold the symtab vector. | |
8312 | ||
8313 | Note that we base it on the count plus 1, since we will null terminate | |
8314 | the vector allocated based on this size. However, the ELF symbol table | |
8315 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8316 | ||
8317 | long | |
217aa764 | 8318 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8319 | { |
3a551c7a | 8320 | bfd_size_type symcount; |
252b5132 RH |
8321 | long symtab_size; |
8322 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8323 | ||
8324 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8325 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8326 | { | |
8327 | bfd_set_error (bfd_error_file_too_big); | |
8328 | return -1; | |
8329 | } | |
b99d1833 AM |
8330 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8331 | if (symcount > 0) | |
8332 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8333 | |
8334 | return symtab_size; | |
8335 | } | |
8336 | ||
8337 | long | |
217aa764 | 8338 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8339 | { |
3a551c7a | 8340 | bfd_size_type symcount; |
252b5132 RH |
8341 | long symtab_size; |
8342 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8343 | ||
8344 | if (elf_dynsymtab (abfd) == 0) | |
8345 | { | |
8346 | bfd_set_error (bfd_error_invalid_operation); | |
8347 | return -1; | |
8348 | } | |
8349 | ||
8350 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8351 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8352 | { | |
8353 | bfd_set_error (bfd_error_file_too_big); | |
8354 | return -1; | |
8355 | } | |
b99d1833 AM |
8356 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8357 | if (symcount > 0) | |
8358 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8359 | |
8360 | return symtab_size; | |
8361 | } | |
8362 | ||
8363 | long | |
217aa764 AM |
8364 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8365 | sec_ptr asect) | |
252b5132 | 8366 | { |
242a1159 | 8367 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8368 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8369 | { | |
8370 | bfd_set_error (bfd_error_file_too_big); | |
8371 | return -1; | |
8372 | } | |
242a1159 | 8373 | #endif |
252b5132 RH |
8374 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8375 | } | |
8376 | ||
8377 | /* Canonicalize the relocs. */ | |
8378 | ||
8379 | long | |
217aa764 AM |
8380 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8381 | sec_ptr section, | |
8382 | arelent **relptr, | |
8383 | asymbol **symbols) | |
252b5132 RH |
8384 | { |
8385 | arelent *tblptr; | |
8386 | unsigned int i; | |
9c5bfbb7 | 8387 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8388 | |
b34976b6 | 8389 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8390 | return -1; |
8391 | ||
8392 | tblptr = section->relocation; | |
8393 | for (i = 0; i < section->reloc_count; i++) | |
8394 | *relptr++ = tblptr++; | |
8395 | ||
8396 | *relptr = NULL; | |
8397 | ||
8398 | return section->reloc_count; | |
8399 | } | |
8400 | ||
8401 | long | |
6cee3f79 | 8402 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8403 | { |
9c5bfbb7 | 8404 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8405 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8406 | |
8407 | if (symcount >= 0) | |
8408 | bfd_get_symcount (abfd) = symcount; | |
8409 | return symcount; | |
8410 | } | |
8411 | ||
8412 | long | |
217aa764 AM |
8413 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8414 | asymbol **allocation) | |
252b5132 | 8415 | { |
9c5bfbb7 | 8416 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8417 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8418 | |
8419 | if (symcount >= 0) | |
8420 | bfd_get_dynamic_symcount (abfd) = symcount; | |
8421 | return symcount; | |
252b5132 RH |
8422 | } |
8423 | ||
8615f3f2 AM |
8424 | /* Return the size required for the dynamic reloc entries. Any loadable |
8425 | section that was actually installed in the BFD, and has type SHT_REL | |
8426 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8427 | dynamic reloc section. */ | |
252b5132 RH |
8428 | |
8429 | long | |
217aa764 | 8430 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8431 | { |
3a551c7a | 8432 | bfd_size_type count; |
252b5132 RH |
8433 | asection *s; |
8434 | ||
8435 | if (elf_dynsymtab (abfd) == 0) | |
8436 | { | |
8437 | bfd_set_error (bfd_error_invalid_operation); | |
8438 | return -1; | |
8439 | } | |
8440 | ||
3a551c7a | 8441 | count = 1; |
252b5132 | 8442 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8443 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8444 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8445 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a AM |
8446 | { |
8447 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; | |
8448 | if (count > LONG_MAX / sizeof (arelent *)) | |
8449 | { | |
8450 | bfd_set_error (bfd_error_file_too_big); | |
8451 | return -1; | |
8452 | } | |
8453 | } | |
8454 | return count * sizeof (arelent *); | |
252b5132 RH |
8455 | } |
8456 | ||
8615f3f2 AM |
8457 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8458 | dynamic relocations as a single block, although they are actually | |
8459 | associated with particular sections; the interface, which was | |
8460 | designed for SunOS style shared libraries, expects that there is only | |
8461 | one set of dynamic relocs. Any loadable section that was actually | |
8462 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8463 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8464 | |
8465 | long | |
217aa764 AM |
8466 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8467 | arelent **storage, | |
8468 | asymbol **syms) | |
252b5132 | 8469 | { |
217aa764 | 8470 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8471 | asection *s; |
8472 | long ret; | |
8473 | ||
8474 | if (elf_dynsymtab (abfd) == 0) | |
8475 | { | |
8476 | bfd_set_error (bfd_error_invalid_operation); | |
8477 | return -1; | |
8478 | } | |
8479 | ||
8480 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8481 | ret = 0; | |
8482 | for (s = abfd->sections; s != NULL; s = s->next) | |
8483 | { | |
266b05cf | 8484 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8485 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8486 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8487 | { | |
8488 | arelent *p; | |
8489 | long count, i; | |
8490 | ||
b34976b6 | 8491 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8492 | return -1; |
eea6121a | 8493 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8494 | p = s->relocation; |
8495 | for (i = 0; i < count; i++) | |
8496 | *storage++ = p++; | |
8497 | ret += count; | |
8498 | } | |
8499 | } | |
8500 | ||
8501 | *storage = NULL; | |
8502 | ||
8503 | return ret; | |
8504 | } | |
8505 | \f | |
8506 | /* Read in the version information. */ | |
8507 | ||
b34976b6 | 8508 | bfd_boolean |
fc0e6df6 | 8509 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8510 | { |
8511 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
8512 | unsigned int freeidx = 0; |
8513 | ||
8514 | if (elf_dynverref (abfd) != 0) | |
8515 | { | |
8516 | Elf_Internal_Shdr *hdr; | |
8517 | Elf_External_Verneed *everneed; | |
8518 | Elf_Internal_Verneed *iverneed; | |
8519 | unsigned int i; | |
d0fb9a8d | 8520 | bfd_byte *contents_end; |
fc0e6df6 PB |
8521 | |
8522 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8523 | ||
bd61e135 AM |
8524 | if (hdr->sh_info == 0 |
8525 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8526 | { |
601a03ba | 8527 | error_return_bad_verref: |
4eca0228 | 8528 | _bfd_error_handler |
871b3ab2 | 8529 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8530 | bfd_set_error (bfd_error_bad_value); |
d0fb9a8d JJ |
8531 | error_return_verref: |
8532 | elf_tdata (abfd)->verref = NULL; | |
8533 | elf_tdata (abfd)->cverrefs = 0; | |
8534 | goto error_return; | |
8535 | } | |
601a03ba | 8536 | |
7e56c51c NC |
8537 | ufile_ptr filesize = bfd_get_file_size (abfd); |
8538 | if (filesize > 0 && filesize < hdr->sh_size) | |
8539 | { | |
8540 | /* PR 24708: Avoid attempts to allocate a ridiculous amount | |
8541 | of memory. */ | |
8542 | bfd_set_error (bfd_error_no_memory); | |
8543 | _bfd_error_handler | |
8544 | /* xgettext:c-format */ | |
8545 | (_("error: %pB version reference section is too large (%#" PRIx64 " bytes)"), | |
8546 | abfd, (uint64_t) hdr->sh_size); | |
8547 | goto error_return_verref; | |
8548 | } | |
601a03ba AM |
8549 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
8550 | if (contents == NULL) | |
8551 | goto error_return_verref; | |
8552 | ||
fc0e6df6 PB |
8553 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
8554 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 8555 | goto error_return_verref; |
fc0e6df6 | 8556 | |
601a03ba | 8557 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
bd61e135 | 8558 | bfd_alloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); |
601a03ba AM |
8559 | |
8560 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
8561 | goto error_return_verref; |
8562 | ||
8563 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8564 | == sizeof (Elf_External_Vernaux)); | |
8565 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8566 | everneed = (Elf_External_Verneed *) contents; |
8567 | iverneed = elf_tdata (abfd)->verref; | |
8568 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8569 | { | |
8570 | Elf_External_Vernaux *evernaux; | |
8571 | Elf_Internal_Vernaux *ivernaux; | |
8572 | unsigned int j; | |
8573 | ||
8574 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8575 | ||
8576 | iverneed->vn_bfd = abfd; | |
8577 | ||
8578 | iverneed->vn_filename = | |
8579 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8580 | iverneed->vn_file); | |
8581 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8582 | goto error_return_bad_verref; |
fc0e6df6 | 8583 | |
d0fb9a8d JJ |
8584 | if (iverneed->vn_cnt == 0) |
8585 | iverneed->vn_auxptr = NULL; | |
8586 | else | |
8587 | { | |
a50b1753 | 8588 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
07d6d2b8 AM |
8589 | bfd_alloc2 (abfd, iverneed->vn_cnt, |
8590 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
8591 | if (iverneed->vn_auxptr == NULL) |
8592 | goto error_return_verref; | |
8593 | } | |
8594 | ||
8595 | if (iverneed->vn_aux | |
8596 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8597 | goto error_return_bad_verref; |
fc0e6df6 PB |
8598 | |
8599 | evernaux = ((Elf_External_Vernaux *) | |
8600 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8601 | ivernaux = iverneed->vn_auxptr; | |
8602 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8603 | { | |
8604 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8605 | ||
8606 | ivernaux->vna_nodename = | |
8607 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8608 | ivernaux->vna_name); | |
8609 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8610 | goto error_return_bad_verref; |
fc0e6df6 | 8611 | |
25ff461f AM |
8612 | if (ivernaux->vna_other > freeidx) |
8613 | freeidx = ivernaux->vna_other; | |
8614 | ||
8615 | ivernaux->vna_nextptr = NULL; | |
8616 | if (ivernaux->vna_next == 0) | |
8617 | { | |
8618 | iverneed->vn_cnt = j + 1; | |
8619 | break; | |
8620 | } | |
fc0e6df6 PB |
8621 | if (j + 1 < iverneed->vn_cnt) |
8622 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8623 | |
d0fb9a8d JJ |
8624 | if (ivernaux->vna_next |
8625 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8626 | goto error_return_bad_verref; |
d0fb9a8d | 8627 | |
fc0e6df6 PB |
8628 | evernaux = ((Elf_External_Vernaux *) |
8629 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8630 | } |
8631 | ||
25ff461f AM |
8632 | iverneed->vn_nextref = NULL; |
8633 | if (iverneed->vn_next == 0) | |
8634 | break; | |
fc0e6df6 PB |
8635 | if (i + 1 < hdr->sh_info) |
8636 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8637 | |
d0fb9a8d JJ |
8638 | if (iverneed->vn_next |
8639 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8640 | goto error_return_bad_verref; |
d0fb9a8d | 8641 | |
fc0e6df6 PB |
8642 | everneed = ((Elf_External_Verneed *) |
8643 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8644 | } | |
25ff461f | 8645 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8646 | |
8647 | free (contents); | |
8648 | contents = NULL; | |
8649 | } | |
252b5132 RH |
8650 | |
8651 | if (elf_dynverdef (abfd) != 0) | |
8652 | { | |
8653 | Elf_Internal_Shdr *hdr; | |
8654 | Elf_External_Verdef *everdef; | |
8655 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8656 | Elf_Internal_Verdef *iverdefarr; |
8657 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8658 | unsigned int i; |
062e2358 | 8659 | unsigned int maxidx; |
d0fb9a8d | 8660 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8661 | |
8662 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8663 | ||
601a03ba AM |
8664 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8665 | { | |
8666 | error_return_bad_verdef: | |
4eca0228 | 8667 | _bfd_error_handler |
871b3ab2 | 8668 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8669 | bfd_set_error (bfd_error_bad_value); |
8670 | error_return_verdef: | |
8671 | elf_tdata (abfd)->verdef = NULL; | |
8672 | elf_tdata (abfd)->cverdefs = 0; | |
8673 | goto error_return; | |
8674 | } | |
8675 | ||
a50b1753 | 8676 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 8677 | if (contents == NULL) |
601a03ba | 8678 | goto error_return_verdef; |
252b5132 | 8679 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 8680 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 8681 | goto error_return_verdef; |
d0fb9a8d JJ |
8682 | |
8683 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8684 | >= sizeof (Elf_External_Verdaux)); | |
8685 | contents_end_def = contents + hdr->sh_size | |
8686 | - sizeof (Elf_External_Verdef); | |
8687 | contents_end_aux = contents + hdr->sh_size | |
8688 | - sizeof (Elf_External_Verdaux); | |
8689 | ||
f631889e UD |
8690 | /* We know the number of entries in the section but not the maximum |
8691 | index. Therefore we have to run through all entries and find | |
8692 | the maximum. */ | |
252b5132 | 8693 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8694 | maxidx = 0; |
8695 | for (i = 0; i < hdr->sh_info; ++i) | |
8696 | { | |
8697 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8698 | ||
601a03ba AM |
8699 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8700 | goto error_return_bad_verdef; | |
062e2358 AM |
8701 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8702 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8703 | |
25ff461f AM |
8704 | if (iverdefmem.vd_next == 0) |
8705 | break; | |
8706 | ||
d0fb9a8d JJ |
8707 | if (iverdefmem.vd_next |
8708 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8709 | goto error_return_bad_verdef; |
d0fb9a8d | 8710 | |
f631889e UD |
8711 | everdef = ((Elf_External_Verdef *) |
8712 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8713 | } | |
8714 | ||
fc0e6df6 PB |
8715 | if (default_imported_symver) |
8716 | { | |
8717 | if (freeidx > maxidx) | |
8718 | maxidx = ++freeidx; | |
8719 | else | |
8720 | freeidx = ++maxidx; | |
8721 | } | |
201159ec | 8722 | |
601a03ba AM |
8723 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
8724 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 8725 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8726 | goto error_return_verdef; |
f631889e UD |
8727 | |
8728 | elf_tdata (abfd)->cverdefs = maxidx; | |
8729 | ||
8730 | everdef = (Elf_External_Verdef *) contents; | |
8731 | iverdefarr = elf_tdata (abfd)->verdef; | |
8732 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8733 | { |
8734 | Elf_External_Verdaux *everdaux; | |
8735 | Elf_Internal_Verdaux *iverdaux; | |
8736 | unsigned int j; | |
8737 | ||
f631889e UD |
8738 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8739 | ||
d0fb9a8d | 8740 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8741 | goto error_return_bad_verdef; |
d0fb9a8d | 8742 | |
f631889e | 8743 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8744 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8745 | |
8746 | iverdef->vd_bfd = abfd; | |
8747 | ||
d0fb9a8d JJ |
8748 | if (iverdef->vd_cnt == 0) |
8749 | iverdef->vd_auxptr = NULL; | |
8750 | else | |
8751 | { | |
a50b1753 | 8752 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
07d6d2b8 AM |
8753 | bfd_alloc2 (abfd, iverdef->vd_cnt, |
8754 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
8755 | if (iverdef->vd_auxptr == NULL) |
8756 | goto error_return_verdef; | |
8757 | } | |
8758 | ||
8759 | if (iverdef->vd_aux | |
8760 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8761 | goto error_return_bad_verdef; |
252b5132 RH |
8762 | |
8763 | everdaux = ((Elf_External_Verdaux *) | |
8764 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8765 | iverdaux = iverdef->vd_auxptr; | |
8766 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8767 | { | |
8768 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8769 | ||
8770 | iverdaux->vda_nodename = | |
8771 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8772 | iverdaux->vda_name); | |
8773 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8774 | goto error_return_bad_verdef; |
252b5132 | 8775 | |
25ff461f AM |
8776 | iverdaux->vda_nextptr = NULL; |
8777 | if (iverdaux->vda_next == 0) | |
8778 | { | |
8779 | iverdef->vd_cnt = j + 1; | |
8780 | break; | |
8781 | } | |
252b5132 RH |
8782 | if (j + 1 < iverdef->vd_cnt) |
8783 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8784 | |
d0fb9a8d JJ |
8785 | if (iverdaux->vda_next |
8786 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8787 | goto error_return_bad_verdef; |
d0fb9a8d | 8788 | |
252b5132 RH |
8789 | everdaux = ((Elf_External_Verdaux *) |
8790 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8791 | } | |
8792 | ||
595bce75 | 8793 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8794 | if (iverdef->vd_cnt) |
8795 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8796 | |
25ff461f AM |
8797 | iverdef->vd_nextdef = NULL; |
8798 | if (iverdef->vd_next == 0) | |
8799 | break; | |
d0fb9a8d | 8800 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8801 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8802 | |
8803 | everdef = ((Elf_External_Verdef *) | |
8804 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8805 | } | |
8806 | ||
8807 | free (contents); | |
8808 | contents = NULL; | |
8809 | } | |
fc0e6df6 | 8810 | else if (default_imported_symver) |
252b5132 | 8811 | { |
fc0e6df6 PB |
8812 | if (freeidx < 3) |
8813 | freeidx = 3; | |
8814 | else | |
8815 | freeidx++; | |
252b5132 | 8816 | |
a50b1753 | 8817 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
07d6d2b8 | 8818 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); |
fc0e6df6 | 8819 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8820 | goto error_return; |
8821 | ||
fc0e6df6 PB |
8822 | elf_tdata (abfd)->cverdefs = freeidx; |
8823 | } | |
252b5132 | 8824 | |
fc0e6df6 PB |
8825 | /* Create a default version based on the soname. */ |
8826 | if (default_imported_symver) | |
8827 | { | |
8828 | Elf_Internal_Verdef *iverdef; | |
8829 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8830 | |
5bb3703f | 8831 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8832 | |
fc0e6df6 PB |
8833 | iverdef->vd_version = VER_DEF_CURRENT; |
8834 | iverdef->vd_flags = 0; | |
8835 | iverdef->vd_ndx = freeidx; | |
8836 | iverdef->vd_cnt = 1; | |
252b5132 | 8837 | |
fc0e6df6 | 8838 | iverdef->vd_bfd = abfd; |
252b5132 | 8839 | |
fc0e6df6 PB |
8840 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8841 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8842 | goto error_return_verdef; |
fc0e6df6 | 8843 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8844 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8845 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8846 | if (iverdef->vd_auxptr == NULL) |
8847 | goto error_return_verdef; | |
252b5132 | 8848 | |
fc0e6df6 PB |
8849 | iverdaux = iverdef->vd_auxptr; |
8850 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8851 | } |
8852 | ||
b34976b6 | 8853 | return TRUE; |
252b5132 RH |
8854 | |
8855 | error_return: | |
5ed6aba4 | 8856 | if (contents != NULL) |
252b5132 | 8857 | free (contents); |
b34976b6 | 8858 | return FALSE; |
252b5132 RH |
8859 | } |
8860 | \f | |
8861 | asymbol * | |
217aa764 | 8862 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8863 | { |
8864 | elf_symbol_type *newsym; | |
8865 | ||
7a6e0d89 | 8866 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
8867 | if (!newsym) |
8868 | return NULL; | |
201159ec NC |
8869 | newsym->symbol.the_bfd = abfd; |
8870 | return &newsym->symbol; | |
252b5132 RH |
8871 | } |
8872 | ||
8873 | void | |
217aa764 AM |
8874 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8875 | asymbol *symbol, | |
8876 | symbol_info *ret) | |
252b5132 RH |
8877 | { |
8878 | bfd_symbol_info (symbol, ret); | |
8879 | } | |
8880 | ||
8881 | /* Return whether a symbol name implies a local symbol. Most targets | |
8882 | use this function for the is_local_label_name entry point, but some | |
8883 | override it. */ | |
8884 | ||
b34976b6 | 8885 | bfd_boolean |
217aa764 AM |
8886 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8887 | const char *name) | |
252b5132 RH |
8888 | { |
8889 | /* Normal local symbols start with ``.L''. */ | |
8890 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8891 | return TRUE; |
252b5132 RH |
8892 | |
8893 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8894 | DWARF debugging symbols starting with ``..''. */ | |
8895 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8896 | return TRUE; |
252b5132 RH |
8897 | |
8898 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8899 | emitting DWARF debugging output. I suspect this is actually a | |
8900 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8901 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8902 | underscore to be emitted on some ELF targets). For ease of use, | |
8903 | we treat such symbols as local. */ | |
8904 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8905 | return TRUE; |
252b5132 | 8906 | |
b1fa9dd6 NC |
8907 | /* Treat assembler generated fake symbols, dollar local labels and |
8908 | forward-backward labels (aka local labels) as locals. | |
8909 | These labels have the form: | |
8910 | ||
07d6d2b8 | 8911 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8912 | |
8913 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8914 | ||
8915 | Versions which start with .L will have already been matched above, | |
8916 | so we only need to match the rest. */ | |
8917 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8918 | { | |
8919 | bfd_boolean ret = FALSE; | |
8920 | const char * p; | |
8921 | char c; | |
8922 | ||
8923 | for (p = name + 2; (c = *p); p++) | |
8924 | { | |
8925 | if (c == 1 || c == 2) | |
8926 | { | |
8927 | if (c == 1 && p == name + 2) | |
8928 | /* A fake symbol. */ | |
8929 | return TRUE; | |
8930 | ||
8931 | /* FIXME: We are being paranoid here and treating symbols like | |
8932 | L0^Bfoo as if there were non-local, on the grounds that the | |
8933 | assembler will never generate them. But can any symbol | |
8934 | containing an ASCII value in the range 1-31 ever be anything | |
8935 | other than some kind of local ? */ | |
8936 | ret = TRUE; | |
8937 | } | |
8938 | ||
8939 | if (! ISDIGIT (c)) | |
8940 | { | |
8941 | ret = FALSE; | |
8942 | break; | |
8943 | } | |
8944 | } | |
8945 | return ret; | |
8946 | } | |
ffa54770 | 8947 | |
b34976b6 | 8948 | return FALSE; |
252b5132 RH |
8949 | } |
8950 | ||
8951 | alent * | |
217aa764 AM |
8952 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
8953 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
8954 | { |
8955 | abort (); | |
8956 | return NULL; | |
8957 | } | |
8958 | ||
b34976b6 | 8959 | bfd_boolean |
217aa764 AM |
8960 | _bfd_elf_set_arch_mach (bfd *abfd, |
8961 | enum bfd_architecture arch, | |
8962 | unsigned long machine) | |
252b5132 RH |
8963 | { |
8964 | /* If this isn't the right architecture for this backend, and this | |
8965 | isn't the generic backend, fail. */ | |
8966 | if (arch != get_elf_backend_data (abfd)->arch | |
8967 | && arch != bfd_arch_unknown | |
8968 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 8969 | return FALSE; |
252b5132 RH |
8970 | |
8971 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
8972 | } | |
8973 | ||
d1fad7c6 NC |
8974 | /* Find the nearest line to a particular section and offset, |
8975 | for error reporting. */ | |
8976 | ||
b34976b6 | 8977 | bfd_boolean |
217aa764 | 8978 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 8979 | asymbol **symbols, |
fb167eb2 | 8980 | asection *section, |
217aa764 AM |
8981 | bfd_vma offset, |
8982 | const char **filename_ptr, | |
8983 | const char **functionname_ptr, | |
fb167eb2 AM |
8984 | unsigned int *line_ptr, |
8985 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 8986 | { |
b34976b6 | 8987 | bfd_boolean found; |
d1fad7c6 | 8988 | |
fb167eb2 | 8989 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 8990 | filename_ptr, functionname_ptr, |
fb167eb2 | 8991 | line_ptr, discriminator_ptr, |
9defd221 | 8992 | dwarf_debug_sections, |
e00e8198 AM |
8993 | &elf_tdata (abfd)->dwarf2_find_line_info) |
8994 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
8995 | filename_ptr, functionname_ptr, | |
8996 | line_ptr)) | |
d1fad7c6 NC |
8997 | { |
8998 | if (!*functionname_ptr) | |
e00e8198 AM |
8999 | _bfd_elf_find_function (abfd, symbols, section, offset, |
9000 | *filename_ptr ? NULL : filename_ptr, | |
9001 | functionname_ptr); | |
b34976b6 | 9002 | return TRUE; |
d1fad7c6 NC |
9003 | } |
9004 | ||
9005 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
9006 | &found, filename_ptr, |
9007 | functionname_ptr, line_ptr, | |
9008 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 9009 | return FALSE; |
dc43ada5 | 9010 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 9011 | return TRUE; |
d1fad7c6 NC |
9012 | |
9013 | if (symbols == NULL) | |
b34976b6 | 9014 | return FALSE; |
d1fad7c6 | 9015 | |
e00e8198 AM |
9016 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9017 | filename_ptr, functionname_ptr)) | |
b34976b6 | 9018 | return FALSE; |
d1fad7c6 | 9019 | |
252b5132 | 9020 | *line_ptr = 0; |
b34976b6 | 9021 | return TRUE; |
252b5132 RH |
9022 | } |
9023 | ||
5420f73d L |
9024 | /* Find the line for a symbol. */ |
9025 | ||
9026 | bfd_boolean | |
9027 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
9028 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9029 | { |
fb167eb2 AM |
9030 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9031 | filename_ptr, NULL, line_ptr, NULL, | |
9defd221 | 9032 | dwarf_debug_sections, |
fb167eb2 | 9033 | &elf_tdata (abfd)->dwarf2_find_line_info); |
5420f73d L |
9034 | } |
9035 | ||
4ab527b0 FF |
9036 | /* After a call to bfd_find_nearest_line, successive calls to |
9037 | bfd_find_inliner_info can be used to get source information about | |
9038 | each level of function inlining that terminated at the address | |
9039 | passed to bfd_find_nearest_line. Currently this is only supported | |
9040 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9041 | ||
9042 | bfd_boolean | |
9043 | _bfd_elf_find_inliner_info (bfd *abfd, | |
9044 | const char **filename_ptr, | |
9045 | const char **functionname_ptr, | |
9046 | unsigned int *line_ptr) | |
9047 | { | |
9048 | bfd_boolean found; | |
9049 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9050 | functionname_ptr, line_ptr, | |
9051 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9052 | return found; | |
9053 | } | |
9054 | ||
252b5132 | 9055 | int |
a6b96beb | 9056 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9057 | { |
8ded5a0f AM |
9058 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9059 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9060 | |
0e1862bb | 9061 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9062 | { |
12bd6957 | 9063 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9064 | |
62d7a5f6 AM |
9065 | if (phdr_size == (bfd_size_type) -1) |
9066 | { | |
9067 | struct elf_segment_map *m; | |
9068 | ||
9069 | phdr_size = 0; | |
12bd6957 | 9070 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9071 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9072 | |
62d7a5f6 AM |
9073 | if (phdr_size == 0) |
9074 | phdr_size = get_program_header_size (abfd, info); | |
9075 | } | |
8ded5a0f | 9076 | |
12bd6957 | 9077 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9078 | ret += phdr_size; |
9079 | } | |
9080 | ||
252b5132 RH |
9081 | return ret; |
9082 | } | |
9083 | ||
b34976b6 | 9084 | bfd_boolean |
217aa764 AM |
9085 | _bfd_elf_set_section_contents (bfd *abfd, |
9086 | sec_ptr section, | |
0f867abe | 9087 | const void *location, |
217aa764 AM |
9088 | file_ptr offset, |
9089 | bfd_size_type count) | |
252b5132 RH |
9090 | { |
9091 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9092 | file_ptr pos; |
252b5132 RH |
9093 | |
9094 | if (! abfd->output_has_begun | |
217aa764 | 9095 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 9096 | return FALSE; |
252b5132 | 9097 | |
0ce398f1 L |
9098 | if (!count) |
9099 | return TRUE; | |
9100 | ||
252b5132 | 9101 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9102 | if (hdr->sh_offset == (file_ptr) -1) |
9103 | { | |
9104 | /* We must compress this section. Write output to the buffer. */ | |
9105 | unsigned char *contents = hdr->contents; | |
9106 | if ((offset + count) > hdr->sh_size | |
9107 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
9108 | || contents == NULL) | |
9109 | abort (); | |
9110 | memcpy (contents + offset, location, count); | |
9111 | return TRUE; | |
9112 | } | |
dc810e39 AM |
9113 | pos = hdr->sh_offset + offset; |
9114 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9115 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9116 | return FALSE; |
252b5132 | 9117 | |
b34976b6 | 9118 | return TRUE; |
252b5132 RH |
9119 | } |
9120 | ||
f3185997 | 9121 | bfd_boolean |
217aa764 AM |
9122 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9123 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9124 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9125 | { |
9126 | abort (); | |
f3185997 | 9127 | return FALSE; |
252b5132 RH |
9128 | } |
9129 | ||
252b5132 RH |
9130 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9131 | ||
b34976b6 | 9132 | bfd_boolean |
217aa764 | 9133 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9134 | { |
c044fabd | 9135 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9136 | |
9137 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9138 | { | |
9139 | bfd_reloc_code_real_type code; | |
9140 | reloc_howto_type *howto; | |
9141 | ||
9142 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9143 | equivalent ELF reloc. */ |
252b5132 RH |
9144 | |
9145 | if (areloc->howto->pc_relative) | |
9146 | { | |
9147 | switch (areloc->howto->bitsize) | |
9148 | { | |
9149 | case 8: | |
9150 | code = BFD_RELOC_8_PCREL; | |
9151 | break; | |
9152 | case 12: | |
9153 | code = BFD_RELOC_12_PCREL; | |
9154 | break; | |
9155 | case 16: | |
9156 | code = BFD_RELOC_16_PCREL; | |
9157 | break; | |
9158 | case 24: | |
9159 | code = BFD_RELOC_24_PCREL; | |
9160 | break; | |
9161 | case 32: | |
9162 | code = BFD_RELOC_32_PCREL; | |
9163 | break; | |
9164 | case 64: | |
9165 | code = BFD_RELOC_64_PCREL; | |
9166 | break; | |
9167 | default: | |
9168 | goto fail; | |
9169 | } | |
9170 | ||
9171 | howto = bfd_reloc_type_lookup (abfd, code); | |
9172 | ||
9173 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
9174 | { | |
9175 | if (howto->pcrel_offset) | |
9176 | areloc->addend += areloc->address; | |
9177 | else | |
9178 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9179 | } | |
9180 | } | |
9181 | else | |
9182 | { | |
9183 | switch (areloc->howto->bitsize) | |
9184 | { | |
9185 | case 8: | |
9186 | code = BFD_RELOC_8; | |
9187 | break; | |
9188 | case 14: | |
9189 | code = BFD_RELOC_14; | |
9190 | break; | |
9191 | case 16: | |
9192 | code = BFD_RELOC_16; | |
9193 | break; | |
9194 | case 26: | |
9195 | code = BFD_RELOC_26; | |
9196 | break; | |
9197 | case 32: | |
9198 | code = BFD_RELOC_32; | |
9199 | break; | |
9200 | case 64: | |
9201 | code = BFD_RELOC_64; | |
9202 | break; | |
9203 | default: | |
9204 | goto fail; | |
9205 | } | |
9206 | ||
9207 | howto = bfd_reloc_type_lookup (abfd, code); | |
9208 | } | |
9209 | ||
9210 | if (howto) | |
9211 | areloc->howto = howto; | |
9212 | else | |
9213 | goto fail; | |
9214 | } | |
9215 | ||
b34976b6 | 9216 | return TRUE; |
252b5132 RH |
9217 | |
9218 | fail: | |
0aa13fee AM |
9219 | /* xgettext:c-format */ |
9220 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9221 | abfd, areloc->howto->name); | |
252b5132 | 9222 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 9223 | return FALSE; |
252b5132 RH |
9224 | } |
9225 | ||
b34976b6 | 9226 | bfd_boolean |
217aa764 | 9227 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9228 | { |
d9071b0c TG |
9229 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9230 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9231 | { |
c0355132 | 9232 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9233 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9234 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9235 | } |
9236 | ||
9237 | return _bfd_generic_close_and_cleanup (abfd); | |
9238 | } | |
9239 | ||
9240 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9241 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9242 | range-checking to interfere. There is nothing else to do in processing | |
9243 | this reloc. */ | |
9244 | ||
9245 | bfd_reloc_status_type | |
217aa764 AM |
9246 | _bfd_elf_rel_vtable_reloc_fn |
9247 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9248 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9249 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9250 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9251 | { |
9252 | return bfd_reloc_ok; | |
9253 | } | |
252b5132 RH |
9254 | \f |
9255 | /* Elf core file support. Much of this only works on native | |
9256 | toolchains, since we rely on knowing the | |
9257 | machine-dependent procfs structure in order to pick | |
c044fabd | 9258 | out details about the corefile. */ |
252b5132 RH |
9259 | |
9260 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9261 | /* Needed for new procfs interface on sparc-solaris. */ |
9262 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9263 | # include <sys/procfs.h> |
9264 | #endif | |
9265 | ||
261b8d08 PA |
9266 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9267 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9268 | |
9269 | static int | |
217aa764 | 9270 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9271 | { |
261b8d08 PA |
9272 | int pid; |
9273 | ||
228e534f | 9274 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9275 | if (pid == 0) |
228e534f | 9276 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9277 | |
9278 | return pid; | |
252b5132 RH |
9279 | } |
9280 | ||
252b5132 RH |
9281 | /* If there isn't a section called NAME, make one, using |
9282 | data from SECT. Note, this function will generate a | |
9283 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9284 | overwrite it. */ |
252b5132 | 9285 | |
b34976b6 | 9286 | static bfd_boolean |
217aa764 | 9287 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9288 | { |
c044fabd | 9289 | asection *sect2; |
252b5132 RH |
9290 | |
9291 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9292 | return TRUE; |
252b5132 | 9293 | |
117ed4f8 | 9294 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9295 | if (sect2 == NULL) |
b34976b6 | 9296 | return FALSE; |
252b5132 | 9297 | |
eea6121a | 9298 | sect2->size = sect->size; |
252b5132 | 9299 | sect2->filepos = sect->filepos; |
252b5132 | 9300 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9301 | return TRUE; |
252b5132 RH |
9302 | } |
9303 | ||
bb0082d6 AM |
9304 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9305 | actually creates up to two pseudosections: | |
9306 | - For the single-threaded case, a section named NAME, unless | |
9307 | such a section already exists. | |
9308 | - For the multi-threaded case, a section named "NAME/PID", where | |
9309 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9310 | Both pseudosections have identical contents. */ |
b34976b6 | 9311 | bfd_boolean |
217aa764 AM |
9312 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9313 | char *name, | |
9314 | size_t size, | |
9315 | ufile_ptr filepos) | |
bb0082d6 AM |
9316 | { |
9317 | char buf[100]; | |
9318 | char *threaded_name; | |
d4c88bbb | 9319 | size_t len; |
bb0082d6 AM |
9320 | asection *sect; |
9321 | ||
9322 | /* Build the section name. */ | |
9323 | ||
9324 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9325 | len = strlen (buf) + 1; |
a50b1753 | 9326 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9327 | if (threaded_name == NULL) |
b34976b6 | 9328 | return FALSE; |
d4c88bbb | 9329 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9330 | |
117ed4f8 AM |
9331 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9332 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9333 | if (sect == NULL) |
b34976b6 | 9334 | return FALSE; |
eea6121a | 9335 | sect->size = size; |
bb0082d6 | 9336 | sect->filepos = filepos; |
bb0082d6 AM |
9337 | sect->alignment_power = 2; |
9338 | ||
936e320b | 9339 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9340 | } |
9341 | ||
58e07198 CZ |
9342 | static bfd_boolean |
9343 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9344 | size_t offs) | |
9345 | { | |
9346 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9347 | SEC_HAS_CONTENTS); | |
9348 | ||
9349 | if (sect == NULL) | |
9350 | return FALSE; | |
9351 | ||
9352 | sect->size = note->descsz - offs; | |
9353 | sect->filepos = note->descpos + offs; | |
9354 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9355 | ||
9356 | return TRUE; | |
9357 | } | |
9358 | ||
252b5132 | 9359 | /* prstatus_t exists on: |
4a938328 | 9360 | solaris 2.5+ |
252b5132 RH |
9361 | linux 2.[01] + glibc |
9362 | unixware 4.2 | |
9363 | */ | |
9364 | ||
9365 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9366 | |
b34976b6 | 9367 | static bfd_boolean |
217aa764 | 9368 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9369 | { |
eea6121a | 9370 | size_t size; |
7ee38065 | 9371 | int offset; |
252b5132 | 9372 | |
4a938328 MS |
9373 | if (note->descsz == sizeof (prstatus_t)) |
9374 | { | |
9375 | prstatus_t prstat; | |
252b5132 | 9376 | |
eea6121a | 9377 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9378 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9379 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9380 | |
fa49d224 NC |
9381 | /* Do not overwrite the core signal if it |
9382 | has already been set by another thread. */ | |
228e534f AM |
9383 | if (elf_tdata (abfd)->core->signal == 0) |
9384 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9385 | if (elf_tdata (abfd)->core->pid == 0) | |
9386 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9387 | |
4a938328 MS |
9388 | /* pr_who exists on: |
9389 | solaris 2.5+ | |
9390 | unixware 4.2 | |
9391 | pr_who doesn't exist on: | |
9392 | linux 2.[01] | |
9393 | */ | |
252b5132 | 9394 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9395 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9396 | #else |
228e534f | 9397 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9398 | #endif |
4a938328 | 9399 | } |
7ee38065 | 9400 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9401 | else if (note->descsz == sizeof (prstatus32_t)) |
9402 | { | |
9403 | /* 64-bit host, 32-bit corefile */ | |
9404 | prstatus32_t prstat; | |
9405 | ||
eea6121a | 9406 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9407 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9408 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9409 | ||
fa49d224 NC |
9410 | /* Do not overwrite the core signal if it |
9411 | has already been set by another thread. */ | |
228e534f AM |
9412 | if (elf_tdata (abfd)->core->signal == 0) |
9413 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9414 | if (elf_tdata (abfd)->core->pid == 0) | |
9415 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9416 | |
9417 | /* pr_who exists on: | |
9418 | solaris 2.5+ | |
9419 | unixware 4.2 | |
9420 | pr_who doesn't exist on: | |
9421 | linux 2.[01] | |
9422 | */ | |
7ee38065 | 9423 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9424 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9425 | #else |
228e534f | 9426 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9427 | #endif |
9428 | } | |
7ee38065 | 9429 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9430 | else |
9431 | { | |
9432 | /* Fail - we don't know how to handle any other | |
9433 | note size (ie. data object type). */ | |
b34976b6 | 9434 | return TRUE; |
4a938328 | 9435 | } |
252b5132 | 9436 | |
bb0082d6 | 9437 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9438 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9439 | size, note->descpos + offset); |
252b5132 RH |
9440 | } |
9441 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9442 | ||
bb0082d6 | 9443 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9444 | static bfd_boolean |
217aa764 AM |
9445 | elfcore_make_note_pseudosection (bfd *abfd, |
9446 | char *name, | |
9447 | Elf_Internal_Note *note) | |
252b5132 | 9448 | { |
936e320b AM |
9449 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9450 | note->descsz, note->descpos); | |
252b5132 RH |
9451 | } |
9452 | ||
ff08c6bb JB |
9453 | /* There isn't a consistent prfpregset_t across platforms, |
9454 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9455 | data structure apart. */ |
9456 | ||
b34976b6 | 9457 | static bfd_boolean |
217aa764 | 9458 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9459 | { |
9460 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9461 | } | |
9462 | ||
ff08c6bb | 9463 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9464 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9465 | literally. */ |
c044fabd | 9466 | |
b34976b6 | 9467 | static bfd_boolean |
217aa764 | 9468 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9469 | { |
9470 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9471 | } | |
9472 | ||
4339cae0 L |
9473 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9474 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9475 | contents literally. */ | |
9476 | ||
9477 | static bfd_boolean | |
9478 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9479 | { | |
9480 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9481 | } | |
9482 | ||
97753bd5 AM |
9483 | static bfd_boolean |
9484 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9485 | { | |
9486 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9487 | } | |
9488 | ||
89eeb0bc LM |
9489 | static bfd_boolean |
9490 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9491 | { | |
9492 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9493 | } | |
97753bd5 | 9494 | |
cb2366c1 EBM |
9495 | static bfd_boolean |
9496 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9497 | { | |
9498 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9499 | } | |
9500 | ||
9501 | static bfd_boolean | |
9502 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9503 | { | |
9504 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9505 | } | |
9506 | ||
9507 | static bfd_boolean | |
9508 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9509 | { | |
9510 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9511 | } | |
9512 | ||
9513 | static bfd_boolean | |
9514 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9515 | { | |
9516 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9517 | } | |
9518 | ||
9519 | static bfd_boolean | |
9520 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9521 | { | |
9522 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9523 | } | |
9524 | ||
9525 | static bfd_boolean | |
9526 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9527 | { | |
9528 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9529 | } | |
9530 | ||
9531 | static bfd_boolean | |
9532 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9533 | { | |
9534 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9535 | } | |
9536 | ||
9537 | static bfd_boolean | |
9538 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9539 | { | |
9540 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9541 | } | |
9542 | ||
9543 | static bfd_boolean | |
9544 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9545 | { | |
9546 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9547 | } | |
9548 | ||
9549 | static bfd_boolean | |
9550 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9551 | { | |
9552 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9553 | } | |
9554 | ||
9555 | static bfd_boolean | |
9556 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9557 | { | |
9558 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9559 | } | |
9560 | ||
9561 | static bfd_boolean | |
9562 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9563 | { | |
9564 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9565 | } | |
9566 | ||
9567 | static bfd_boolean | |
9568 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9569 | { | |
9570 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9571 | } | |
9572 | ||
0675e188 UW |
9573 | static bfd_boolean |
9574 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9575 | { | |
9576 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9577 | } | |
9578 | ||
d7eeb400 MS |
9579 | static bfd_boolean |
9580 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9581 | { | |
9582 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9583 | } | |
9584 | ||
9585 | static bfd_boolean | |
9586 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9587 | { | |
9588 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9589 | } | |
9590 | ||
9591 | static bfd_boolean | |
9592 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9593 | { | |
9594 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9595 | } | |
9596 | ||
9597 | static bfd_boolean | |
9598 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9599 | { | |
9600 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9601 | } | |
9602 | ||
9603 | static bfd_boolean | |
9604 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9605 | { | |
9606 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9607 | } | |
9608 | ||
355b81d9 UW |
9609 | static bfd_boolean |
9610 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9611 | { | |
9612 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9613 | } | |
9614 | ||
9615 | static bfd_boolean | |
9616 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9617 | { | |
9618 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9619 | } | |
9620 | ||
abb3f6cc NC |
9621 | static bfd_boolean |
9622 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9623 | { | |
9624 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9625 | } | |
9626 | ||
4ef9f41a AA |
9627 | static bfd_boolean |
9628 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9629 | { | |
9630 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9631 | } | |
9632 | ||
9633 | static bfd_boolean | |
9634 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9635 | { | |
9636 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9637 | } | |
9638 | ||
88ab90e8 AA |
9639 | static bfd_boolean |
9640 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9641 | { | |
9642 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9643 | } | |
9644 | ||
9645 | static bfd_boolean | |
9646 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9647 | { | |
9648 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9649 | } | |
9650 | ||
faa9a424 UW |
9651 | static bfd_boolean |
9652 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9653 | { | |
9654 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9655 | } | |
9656 | ||
652451f8 YZ |
9657 | static bfd_boolean |
9658 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9659 | { | |
9660 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9661 | } | |
9662 | ||
9663 | static bfd_boolean | |
9664 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9665 | { | |
9666 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9667 | } | |
9668 | ||
9669 | static bfd_boolean | |
9670 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9671 | { | |
9672 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9673 | } | |
9674 | ||
ad1cc4e4 AH |
9675 | static bfd_boolean |
9676 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9677 | { | |
9678 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9679 | } | |
9680 | ||
e6c3b5bf AH |
9681 | static bfd_boolean |
9682 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9683 | { | |
9684 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9685 | } | |
9686 | ||
252b5132 | 9687 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9688 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9689 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9690 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9691 | #endif | |
252b5132 RH |
9692 | #endif |
9693 | ||
9694 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9695 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9696 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9697 | typedef psinfo32_t elfcore_psinfo32_t; |
9698 | #endif | |
252b5132 RH |
9699 | #endif |
9700 | ||
252b5132 RH |
9701 | /* return a malloc'ed copy of a string at START which is at |
9702 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9703 | the copy will always have a terminating '\0'. */ |
252b5132 | 9704 | |
936e320b | 9705 | char * |
217aa764 | 9706 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9707 | { |
dc810e39 | 9708 | char *dups; |
a50b1753 | 9709 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9710 | size_t len; |
252b5132 RH |
9711 | |
9712 | if (end == NULL) | |
9713 | len = max; | |
9714 | else | |
9715 | len = end - start; | |
9716 | ||
a50b1753 | 9717 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9718 | if (dups == NULL) |
252b5132 RH |
9719 | return NULL; |
9720 | ||
dc810e39 AM |
9721 | memcpy (dups, start, len); |
9722 | dups[len] = '\0'; | |
252b5132 | 9723 | |
dc810e39 | 9724 | return dups; |
252b5132 RH |
9725 | } |
9726 | ||
bb0082d6 | 9727 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9728 | static bfd_boolean |
217aa764 | 9729 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9730 | { |
4a938328 MS |
9731 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9732 | { | |
9733 | elfcore_psinfo_t psinfo; | |
252b5132 | 9734 | |
7ee38065 | 9735 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9736 | |
335e41d4 | 9737 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9738 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9739 | #endif |
228e534f | 9740 | elf_tdata (abfd)->core->program |
936e320b AM |
9741 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9742 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9743 | |
228e534f | 9744 | elf_tdata (abfd)->core->command |
936e320b AM |
9745 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9746 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9747 | } |
7ee38065 | 9748 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9749 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9750 | { | |
9751 | /* 64-bit host, 32-bit corefile */ | |
9752 | elfcore_psinfo32_t psinfo; | |
9753 | ||
7ee38065 | 9754 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9755 | |
335e41d4 | 9756 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9757 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9758 | #endif |
228e534f | 9759 | elf_tdata (abfd)->core->program |
936e320b AM |
9760 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9761 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9762 | |
228e534f | 9763 | elf_tdata (abfd)->core->command |
936e320b AM |
9764 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9765 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9766 | } |
9767 | #endif | |
9768 | ||
9769 | else | |
9770 | { | |
9771 | /* Fail - we don't know how to handle any other | |
9772 | note size (ie. data object type). */ | |
b34976b6 | 9773 | return TRUE; |
4a938328 | 9774 | } |
252b5132 RH |
9775 | |
9776 | /* Note that for some reason, a spurious space is tacked | |
9777 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9778 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9779 | |
9780 | { | |
228e534f | 9781 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9782 | int n = strlen (command); |
9783 | ||
9784 | if (0 < n && command[n - 1] == ' ') | |
9785 | command[n - 1] = '\0'; | |
9786 | } | |
9787 | ||
b34976b6 | 9788 | return TRUE; |
252b5132 RH |
9789 | } |
9790 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9791 | ||
252b5132 | 9792 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9793 | static bfd_boolean |
217aa764 | 9794 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9795 | { |
f572a39d AM |
9796 | if (note->descsz == sizeof (pstatus_t) |
9797 | #if defined (HAVE_PXSTATUS_T) | |
9798 | || note->descsz == sizeof (pxstatus_t) | |
9799 | #endif | |
9800 | ) | |
4a938328 MS |
9801 | { |
9802 | pstatus_t pstat; | |
252b5132 | 9803 | |
4a938328 | 9804 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9805 | |
228e534f | 9806 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9807 | } |
7ee38065 | 9808 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9809 | else if (note->descsz == sizeof (pstatus32_t)) |
9810 | { | |
9811 | /* 64-bit host, 32-bit corefile */ | |
9812 | pstatus32_t pstat; | |
252b5132 | 9813 | |
4a938328 | 9814 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9815 | |
228e534f | 9816 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9817 | } |
9818 | #endif | |
252b5132 RH |
9819 | /* Could grab some more details from the "representative" |
9820 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9821 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9822 | |
b34976b6 | 9823 | return TRUE; |
252b5132 RH |
9824 | } |
9825 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9826 | ||
252b5132 | 9827 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9828 | static bfd_boolean |
217aa764 | 9829 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9830 | { |
9831 | lwpstatus_t lwpstat; | |
9832 | char buf[100]; | |
c044fabd | 9833 | char *name; |
d4c88bbb | 9834 | size_t len; |
c044fabd | 9835 | asection *sect; |
252b5132 | 9836 | |
f572a39d AM |
9837 | if (note->descsz != sizeof (lwpstat) |
9838 | #if defined (HAVE_LWPXSTATUS_T) | |
9839 | && note->descsz != sizeof (lwpxstatus_t) | |
9840 | #endif | |
9841 | ) | |
b34976b6 | 9842 | return TRUE; |
252b5132 RH |
9843 | |
9844 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9845 | ||
228e534f | 9846 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9847 | /* Do not overwrite the core signal if it has already been set by |
9848 | another thread. */ | |
228e534f AM |
9849 | if (elf_tdata (abfd)->core->signal == 0) |
9850 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9851 | |
c044fabd | 9852 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9853 | |
9854 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9855 | len = strlen (buf) + 1; |
217aa764 | 9856 | name = bfd_alloc (abfd, len); |
252b5132 | 9857 | if (name == NULL) |
b34976b6 | 9858 | return FALSE; |
d4c88bbb | 9859 | memcpy (name, buf, len); |
252b5132 | 9860 | |
117ed4f8 | 9861 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9862 | if (sect == NULL) |
b34976b6 | 9863 | return FALSE; |
252b5132 RH |
9864 | |
9865 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9866 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9867 | sect->filepos = note->descpos |
9868 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9869 | #endif | |
9870 | ||
9871 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9872 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9873 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9874 | #endif | |
9875 | ||
252b5132 RH |
9876 | sect->alignment_power = 2; |
9877 | ||
9878 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9879 | return FALSE; |
252b5132 RH |
9880 | |
9881 | /* Make a ".reg2/999" section */ | |
9882 | ||
9883 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9884 | len = strlen (buf) + 1; |
217aa764 | 9885 | name = bfd_alloc (abfd, len); |
252b5132 | 9886 | if (name == NULL) |
b34976b6 | 9887 | return FALSE; |
d4c88bbb | 9888 | memcpy (name, buf, len); |
252b5132 | 9889 | |
117ed4f8 | 9890 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9891 | if (sect == NULL) |
b34976b6 | 9892 | return FALSE; |
252b5132 RH |
9893 | |
9894 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9895 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9896 | sect->filepos = note->descpos |
9897 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9898 | #endif | |
9899 | ||
9900 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9901 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9902 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9903 | #endif | |
9904 | ||
252b5132 RH |
9905 | sect->alignment_power = 2; |
9906 | ||
936e320b | 9907 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9908 | } |
9909 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9910 | ||
b34976b6 | 9911 | static bfd_boolean |
217aa764 | 9912 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9913 | { |
9914 | char buf[30]; | |
c044fabd | 9915 | char *name; |
d4c88bbb | 9916 | size_t len; |
c044fabd | 9917 | asection *sect; |
4a6636fb PA |
9918 | int type; |
9919 | int is_active_thread; | |
9920 | bfd_vma base_addr; | |
16e9c715 | 9921 | |
4a6636fb | 9922 | if (note->descsz < 728) |
b34976b6 | 9923 | return TRUE; |
16e9c715 | 9924 | |
4a6636fb PA |
9925 | if (! CONST_STRNEQ (note->namedata, "win32")) |
9926 | return TRUE; | |
9927 | ||
9928 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 9929 | |
4a6636fb | 9930 | switch (type) |
16e9c715 | 9931 | { |
4a6636fb | 9932 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 9933 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 9934 | /* process_info.pid */ |
228e534f | 9935 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 9936 | /* process_info.signal */ |
228e534f | 9937 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 9938 | break; |
16e9c715 | 9939 | |
4a6636fb | 9940 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 9941 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
9942 | /* thread_info.tid */ |
9943 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 9944 | |
d4c88bbb | 9945 | len = strlen (buf) + 1; |
a50b1753 | 9946 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9947 | if (name == NULL) |
b34976b6 | 9948 | return FALSE; |
c044fabd | 9949 | |
d4c88bbb | 9950 | memcpy (name, buf, len); |
16e9c715 | 9951 | |
117ed4f8 | 9952 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 9953 | if (sect == NULL) |
b34976b6 | 9954 | return FALSE; |
c044fabd | 9955 | |
4a6636fb PA |
9956 | /* sizeof (thread_info.thread_context) */ |
9957 | sect->size = 716; | |
9958 | /* offsetof (thread_info.thread_context) */ | |
9959 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
9960 | sect->alignment_power = 2; |
9961 | ||
4a6636fb PA |
9962 | /* thread_info.is_active_thread */ |
9963 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
9964 | ||
9965 | if (is_active_thread) | |
16e9c715 | 9966 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 9967 | return FALSE; |
16e9c715 NC |
9968 | break; |
9969 | ||
4a6636fb | 9970 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 9971 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
9972 | /* module_info.base_address */ |
9973 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 9974 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 9975 | |
d4c88bbb | 9976 | len = strlen (buf) + 1; |
a50b1753 | 9977 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9978 | if (name == NULL) |
b34976b6 | 9979 | return FALSE; |
c044fabd | 9980 | |
d4c88bbb | 9981 | memcpy (name, buf, len); |
252b5132 | 9982 | |
117ed4f8 | 9983 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 9984 | |
16e9c715 | 9985 | if (sect == NULL) |
b34976b6 | 9986 | return FALSE; |
c044fabd | 9987 | |
eea6121a | 9988 | sect->size = note->descsz; |
16e9c715 | 9989 | sect->filepos = note->descpos; |
16e9c715 NC |
9990 | sect->alignment_power = 2; |
9991 | break; | |
9992 | ||
9993 | default: | |
b34976b6 | 9994 | return TRUE; |
16e9c715 NC |
9995 | } |
9996 | ||
b34976b6 | 9997 | return TRUE; |
16e9c715 | 9998 | } |
252b5132 | 9999 | |
b34976b6 | 10000 | static bfd_boolean |
217aa764 | 10001 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 10002 | { |
9c5bfbb7 | 10003 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 10004 | |
252b5132 RH |
10005 | switch (note->type) |
10006 | { | |
10007 | default: | |
b34976b6 | 10008 | return TRUE; |
252b5132 | 10009 | |
252b5132 | 10010 | case NT_PRSTATUS: |
bb0082d6 AM |
10011 | if (bed->elf_backend_grok_prstatus) |
10012 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 10013 | return TRUE; |
bb0082d6 | 10014 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 10015 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 10016 | #else |
b34976b6 | 10017 | return TRUE; |
252b5132 RH |
10018 | #endif |
10019 | ||
10020 | #if defined (HAVE_PSTATUS_T) | |
10021 | case NT_PSTATUS: | |
10022 | return elfcore_grok_pstatus (abfd, note); | |
10023 | #endif | |
10024 | ||
10025 | #if defined (HAVE_LWPSTATUS_T) | |
10026 | case NT_LWPSTATUS: | |
10027 | return elfcore_grok_lwpstatus (abfd, note); | |
10028 | #endif | |
10029 | ||
10030 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10031 | return elfcore_grok_prfpreg (abfd, note); | |
10032 | ||
c044fabd | 10033 | case NT_WIN32PSTATUS: |
16e9c715 | 10034 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10035 | |
c044fabd | 10036 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10037 | if (note->namesz == 6 |
10038 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10039 | return elfcore_grok_prxfpreg (abfd, note); |
10040 | else | |
b34976b6 | 10041 | return TRUE; |
ff08c6bb | 10042 | |
4339cae0 L |
10043 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10044 | if (note->namesz == 6 | |
10045 | && strcmp (note->namedata, "LINUX") == 0) | |
10046 | return elfcore_grok_xstatereg (abfd, note); | |
10047 | else | |
10048 | return TRUE; | |
10049 | ||
97753bd5 AM |
10050 | case NT_PPC_VMX: |
10051 | if (note->namesz == 6 | |
10052 | && strcmp (note->namedata, "LINUX") == 0) | |
10053 | return elfcore_grok_ppc_vmx (abfd, note); | |
10054 | else | |
10055 | return TRUE; | |
10056 | ||
89eeb0bc LM |
10057 | case NT_PPC_VSX: |
10058 | if (note->namesz == 6 | |
07d6d2b8 AM |
10059 | && strcmp (note->namedata, "LINUX") == 0) |
10060 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10061 | else |
07d6d2b8 | 10062 | return TRUE; |
89eeb0bc | 10063 | |
cb2366c1 EBM |
10064 | case NT_PPC_TAR: |
10065 | if (note->namesz == 6 | |
4b24dd1a AM |
10066 | && strcmp (note->namedata, "LINUX") == 0) |
10067 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10068 | else |
4b24dd1a | 10069 | return TRUE; |
cb2366c1 EBM |
10070 | |
10071 | case NT_PPC_PPR: | |
10072 | if (note->namesz == 6 | |
4b24dd1a AM |
10073 | && strcmp (note->namedata, "LINUX") == 0) |
10074 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10075 | else |
4b24dd1a | 10076 | return TRUE; |
cb2366c1 EBM |
10077 | |
10078 | case NT_PPC_DSCR: | |
10079 | if (note->namesz == 6 | |
4b24dd1a AM |
10080 | && strcmp (note->namedata, "LINUX") == 0) |
10081 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10082 | else |
4b24dd1a | 10083 | return TRUE; |
cb2366c1 EBM |
10084 | |
10085 | case NT_PPC_EBB: | |
10086 | if (note->namesz == 6 | |
4b24dd1a AM |
10087 | && strcmp (note->namedata, "LINUX") == 0) |
10088 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10089 | else |
4b24dd1a | 10090 | return TRUE; |
cb2366c1 EBM |
10091 | |
10092 | case NT_PPC_PMU: | |
10093 | if (note->namesz == 6 | |
4b24dd1a AM |
10094 | && strcmp (note->namedata, "LINUX") == 0) |
10095 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10096 | else |
4b24dd1a | 10097 | return TRUE; |
cb2366c1 EBM |
10098 | |
10099 | case NT_PPC_TM_CGPR: | |
10100 | if (note->namesz == 6 | |
4b24dd1a AM |
10101 | && strcmp (note->namedata, "LINUX") == 0) |
10102 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10103 | else |
4b24dd1a | 10104 | return TRUE; |
cb2366c1 EBM |
10105 | |
10106 | case NT_PPC_TM_CFPR: | |
10107 | if (note->namesz == 6 | |
4b24dd1a AM |
10108 | && strcmp (note->namedata, "LINUX") == 0) |
10109 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10110 | else |
4b24dd1a | 10111 | return TRUE; |
cb2366c1 EBM |
10112 | |
10113 | case NT_PPC_TM_CVMX: | |
10114 | if (note->namesz == 6 | |
4b24dd1a AM |
10115 | && strcmp (note->namedata, "LINUX") == 0) |
10116 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10117 | else |
4b24dd1a | 10118 | return TRUE; |
cb2366c1 EBM |
10119 | |
10120 | case NT_PPC_TM_CVSX: | |
10121 | if (note->namesz == 6 | |
4b24dd1a AM |
10122 | && strcmp (note->namedata, "LINUX") == 0) |
10123 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10124 | else |
4b24dd1a | 10125 | return TRUE; |
cb2366c1 EBM |
10126 | |
10127 | case NT_PPC_TM_SPR: | |
10128 | if (note->namesz == 6 | |
4b24dd1a AM |
10129 | && strcmp (note->namedata, "LINUX") == 0) |
10130 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10131 | else |
4b24dd1a | 10132 | return TRUE; |
cb2366c1 EBM |
10133 | |
10134 | case NT_PPC_TM_CTAR: | |
10135 | if (note->namesz == 6 | |
4b24dd1a AM |
10136 | && strcmp (note->namedata, "LINUX") == 0) |
10137 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10138 | else |
4b24dd1a | 10139 | return TRUE; |
cb2366c1 EBM |
10140 | |
10141 | case NT_PPC_TM_CPPR: | |
10142 | if (note->namesz == 6 | |
4b24dd1a AM |
10143 | && strcmp (note->namedata, "LINUX") == 0) |
10144 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10145 | else |
4b24dd1a | 10146 | return TRUE; |
cb2366c1 EBM |
10147 | |
10148 | case NT_PPC_TM_CDSCR: | |
10149 | if (note->namesz == 6 | |
4b24dd1a AM |
10150 | && strcmp (note->namedata, "LINUX") == 0) |
10151 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10152 | else |
4b24dd1a | 10153 | return TRUE; |
cb2366c1 | 10154 | |
0675e188 UW |
10155 | case NT_S390_HIGH_GPRS: |
10156 | if (note->namesz == 6 | |
07d6d2b8 AM |
10157 | && strcmp (note->namedata, "LINUX") == 0) |
10158 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10159 | else |
07d6d2b8 | 10160 | return TRUE; |
0675e188 | 10161 | |
d7eeb400 MS |
10162 | case NT_S390_TIMER: |
10163 | if (note->namesz == 6 | |
07d6d2b8 AM |
10164 | && strcmp (note->namedata, "LINUX") == 0) |
10165 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10166 | else |
07d6d2b8 | 10167 | return TRUE; |
d7eeb400 MS |
10168 | |
10169 | case NT_S390_TODCMP: | |
10170 | if (note->namesz == 6 | |
07d6d2b8 AM |
10171 | && strcmp (note->namedata, "LINUX") == 0) |
10172 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10173 | else |
07d6d2b8 | 10174 | return TRUE; |
d7eeb400 MS |
10175 | |
10176 | case NT_S390_TODPREG: | |
10177 | if (note->namesz == 6 | |
07d6d2b8 AM |
10178 | && strcmp (note->namedata, "LINUX") == 0) |
10179 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10180 | else |
07d6d2b8 | 10181 | return TRUE; |
d7eeb400 MS |
10182 | |
10183 | case NT_S390_CTRS: | |
10184 | if (note->namesz == 6 | |
07d6d2b8 AM |
10185 | && strcmp (note->namedata, "LINUX") == 0) |
10186 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10187 | else |
07d6d2b8 | 10188 | return TRUE; |
d7eeb400 MS |
10189 | |
10190 | case NT_S390_PREFIX: | |
10191 | if (note->namesz == 6 | |
07d6d2b8 AM |
10192 | && strcmp (note->namedata, "LINUX") == 0) |
10193 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10194 | else |
07d6d2b8 | 10195 | return TRUE; |
d7eeb400 | 10196 | |
355b81d9 UW |
10197 | case NT_S390_LAST_BREAK: |
10198 | if (note->namesz == 6 | |
07d6d2b8 AM |
10199 | && strcmp (note->namedata, "LINUX") == 0) |
10200 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10201 | else |
07d6d2b8 | 10202 | return TRUE; |
355b81d9 UW |
10203 | |
10204 | case NT_S390_SYSTEM_CALL: | |
10205 | if (note->namesz == 6 | |
07d6d2b8 AM |
10206 | && strcmp (note->namedata, "LINUX") == 0) |
10207 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10208 | else |
07d6d2b8 | 10209 | return TRUE; |
355b81d9 | 10210 | |
abb3f6cc NC |
10211 | case NT_S390_TDB: |
10212 | if (note->namesz == 6 | |
07d6d2b8 AM |
10213 | && strcmp (note->namedata, "LINUX") == 0) |
10214 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10215 | else |
07d6d2b8 | 10216 | return TRUE; |
abb3f6cc | 10217 | |
4ef9f41a AA |
10218 | case NT_S390_VXRS_LOW: |
10219 | if (note->namesz == 6 | |
10220 | && strcmp (note->namedata, "LINUX") == 0) | |
10221 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10222 | else | |
10223 | return TRUE; | |
10224 | ||
10225 | case NT_S390_VXRS_HIGH: | |
10226 | if (note->namesz == 6 | |
10227 | && strcmp (note->namedata, "LINUX") == 0) | |
10228 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10229 | else | |
10230 | return TRUE; | |
10231 | ||
88ab90e8 AA |
10232 | case NT_S390_GS_CB: |
10233 | if (note->namesz == 6 | |
10234 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10235 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10236 | else |
10237 | return TRUE; | |
10238 | ||
10239 | case NT_S390_GS_BC: | |
10240 | if (note->namesz == 6 | |
10241 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10242 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10243 | else |
10244 | return TRUE; | |
10245 | ||
faa9a424 UW |
10246 | case NT_ARM_VFP: |
10247 | if (note->namesz == 6 | |
10248 | && strcmp (note->namedata, "LINUX") == 0) | |
10249 | return elfcore_grok_arm_vfp (abfd, note); | |
10250 | else | |
10251 | return TRUE; | |
10252 | ||
652451f8 YZ |
10253 | case NT_ARM_TLS: |
10254 | if (note->namesz == 6 | |
10255 | && strcmp (note->namedata, "LINUX") == 0) | |
10256 | return elfcore_grok_aarch_tls (abfd, note); | |
10257 | else | |
10258 | return TRUE; | |
10259 | ||
10260 | case NT_ARM_HW_BREAK: | |
10261 | if (note->namesz == 6 | |
10262 | && strcmp (note->namedata, "LINUX") == 0) | |
10263 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10264 | else | |
10265 | return TRUE; | |
10266 | ||
10267 | case NT_ARM_HW_WATCH: | |
10268 | if (note->namesz == 6 | |
10269 | && strcmp (note->namedata, "LINUX") == 0) | |
10270 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10271 | else | |
10272 | return TRUE; | |
10273 | ||
ad1cc4e4 AH |
10274 | case NT_ARM_SVE: |
10275 | if (note->namesz == 6 | |
10276 | && strcmp (note->namedata, "LINUX") == 0) | |
10277 | return elfcore_grok_aarch_sve (abfd, note); | |
10278 | else | |
10279 | return TRUE; | |
10280 | ||
e6c3b5bf AH |
10281 | case NT_ARM_PAC_MASK: |
10282 | if (note->namesz == 6 | |
10283 | && strcmp (note->namedata, "LINUX") == 0) | |
10284 | return elfcore_grok_aarch_pauth (abfd, note); | |
10285 | else | |
10286 | return TRUE; | |
10287 | ||
252b5132 RH |
10288 | case NT_PRPSINFO: |
10289 | case NT_PSINFO: | |
bb0082d6 AM |
10290 | if (bed->elf_backend_grok_psinfo) |
10291 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10292 | return TRUE; |
bb0082d6 | 10293 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10294 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10295 | #else |
b34976b6 | 10296 | return TRUE; |
252b5132 | 10297 | #endif |
3333a7c3 RM |
10298 | |
10299 | case NT_AUXV: | |
58e07198 | 10300 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10301 | |
451b7c33 TT |
10302 | case NT_FILE: |
10303 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10304 | note); | |
10305 | ||
9015683b TT |
10306 | case NT_SIGINFO: |
10307 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10308 | note); | |
5b2c414d | 10309 | |
252b5132 RH |
10310 | } |
10311 | } | |
10312 | ||
718175fa JK |
10313 | static bfd_boolean |
10314 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10315 | { | |
c74f7d1c | 10316 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10317 | |
10318 | if (note->descsz == 0) | |
10319 | return FALSE; | |
10320 | ||
c74f7d1c JT |
10321 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10322 | if (build_id == NULL) | |
718175fa JK |
10323 | return FALSE; |
10324 | ||
c74f7d1c JT |
10325 | build_id->size = note->descsz; |
10326 | memcpy (build_id->data, note->descdata, note->descsz); | |
10327 | abfd->build_id = build_id; | |
718175fa JK |
10328 | |
10329 | return TRUE; | |
10330 | } | |
10331 | ||
10332 | static bfd_boolean | |
10333 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10334 | { | |
10335 | switch (note->type) | |
10336 | { | |
10337 | default: | |
10338 | return TRUE; | |
10339 | ||
46bed679 L |
10340 | case NT_GNU_PROPERTY_TYPE_0: |
10341 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10342 | ||
718175fa JK |
10343 | case NT_GNU_BUILD_ID: |
10344 | return elfobj_grok_gnu_build_id (abfd, note); | |
10345 | } | |
10346 | } | |
10347 | ||
e21e5835 NC |
10348 | static bfd_boolean |
10349 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10350 | { | |
10351 | struct sdt_note *cur = | |
7a6e0d89 AM |
10352 | (struct sdt_note *) bfd_alloc (abfd, |
10353 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10354 | |
10355 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10356 | cur->size = (bfd_size_type) note->descsz; | |
10357 | memcpy (cur->data, note->descdata, note->descsz); | |
10358 | ||
10359 | elf_tdata (abfd)->sdt_note_head = cur; | |
10360 | ||
10361 | return TRUE; | |
10362 | } | |
10363 | ||
10364 | static bfd_boolean | |
10365 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10366 | { | |
10367 | switch (note->type) | |
10368 | { | |
10369 | case NT_STAPSDT: | |
10370 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10371 | ||
10372 | default: | |
10373 | return TRUE; | |
10374 | } | |
10375 | } | |
10376 | ||
aa1ed4a9 JB |
10377 | static bfd_boolean |
10378 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10379 | { | |
10380 | size_t offset; | |
10381 | ||
b5430a3c | 10382 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10383 | { |
b5430a3c | 10384 | case ELFCLASS32: |
0064d223 JB |
10385 | if (note->descsz < 108) |
10386 | return FALSE; | |
aa1ed4a9 JB |
10387 | break; |
10388 | ||
b5430a3c | 10389 | case ELFCLASS64: |
0064d223 JB |
10390 | if (note->descsz < 120) |
10391 | return FALSE; | |
aa1ed4a9 JB |
10392 | break; |
10393 | ||
10394 | default: | |
10395 | return FALSE; | |
10396 | } | |
10397 | ||
0064d223 JB |
10398 | /* Check for version 1 in pr_version. */ |
10399 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10400 | return FALSE; | |
80a04378 | 10401 | |
0064d223 JB |
10402 | offset = 4; |
10403 | ||
10404 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10405 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10406 | offset += 4; |
10407 | else | |
10408 | { | |
10409 | offset += 4; /* Padding before pr_psinfosz. */ | |
10410 | offset += 8; | |
10411 | } | |
10412 | ||
aa1ed4a9 JB |
10413 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10414 | elf_tdata (abfd)->core->program | |
10415 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10416 | offset += 17; | |
10417 | ||
10418 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10419 | elf_tdata (abfd)->core->command | |
10420 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10421 | offset += 81; |
10422 | ||
10423 | /* Padding before pr_pid. */ | |
10424 | offset += 2; | |
10425 | ||
10426 | /* The pr_pid field was added in version "1a". */ | |
10427 | if (note->descsz < offset + 4) | |
10428 | return TRUE; | |
10429 | ||
10430 | elf_tdata (abfd)->core->pid | |
10431 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10432 | |
10433 | return TRUE; | |
10434 | } | |
10435 | ||
10436 | static bfd_boolean | |
10437 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10438 | { | |
10439 | size_t offset; | |
10440 | size_t size; | |
24d3e51b | 10441 | size_t min_size; |
aa1ed4a9 | 10442 | |
24d3e51b NC |
10443 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10444 | Also compute minimum size of this note. */ | |
b5430a3c | 10445 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10446 | { |
b5430a3c | 10447 | case ELFCLASS32: |
24d3e51b NC |
10448 | offset = 4 + 4; |
10449 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10450 | break; |
10451 | ||
b5430a3c | 10452 | case ELFCLASS64: |
24d3e51b NC |
10453 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10454 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10455 | break; |
10456 | ||
10457 | default: | |
10458 | return FALSE; | |
10459 | } | |
10460 | ||
24d3e51b NC |
10461 | if (note->descsz < min_size) |
10462 | return FALSE; | |
10463 | ||
10464 | /* Check for version 1 in pr_version. */ | |
10465 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10466 | return FALSE; | |
aa1ed4a9 | 10467 | |
24d3e51b NC |
10468 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10469 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10470 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10471 | { |
10472 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10473 | offset += 4 * 2; | |
10474 | } | |
b5430a3c | 10475 | else |
24d3e51b NC |
10476 | { |
10477 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10478 | offset += 8 * 2; | |
10479 | } | |
aa1ed4a9 | 10480 | |
24d3e51b | 10481 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10482 | offset += 4; |
10483 | ||
24d3e51b | 10484 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10485 | if (elf_tdata (abfd)->core->signal == 0) |
10486 | elf_tdata (abfd)->core->signal | |
10487 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10488 | offset += 4; | |
10489 | ||
24d3e51b | 10490 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10491 | elf_tdata (abfd)->core->lwpid |
10492 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10493 | offset += 4; | |
10494 | ||
24d3e51b | 10495 | /* Padding before pr_reg. */ |
b5430a3c | 10496 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10497 | offset += 4; |
10498 | ||
24d3e51b NC |
10499 | /* Make sure that there is enough data remaining in the note. */ |
10500 | if ((note->descsz - offset) < size) | |
10501 | return FALSE; | |
10502 | ||
aa1ed4a9 JB |
10503 | /* Make a ".reg/999" section and a ".reg" section. */ |
10504 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10505 | size, note->descpos + offset); | |
10506 | } | |
10507 | ||
10508 | static bfd_boolean | |
10509 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10510 | { | |
544c67cd JB |
10511 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10512 | ||
aa1ed4a9 JB |
10513 | switch (note->type) |
10514 | { | |
10515 | case NT_PRSTATUS: | |
544c67cd JB |
10516 | if (bed->elf_backend_grok_freebsd_prstatus) |
10517 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10518 | return TRUE; | |
aa1ed4a9 JB |
10519 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10520 | ||
10521 | case NT_FPREGSET: | |
10522 | return elfcore_grok_prfpreg (abfd, note); | |
10523 | ||
10524 | case NT_PRPSINFO: | |
10525 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10526 | ||
10527 | case NT_FREEBSD_THRMISC: | |
10528 | if (note->namesz == 8) | |
10529 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10530 | else | |
10531 | return TRUE; | |
10532 | ||
ddb2bbcf JB |
10533 | case NT_FREEBSD_PROCSTAT_PROC: |
10534 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10535 | note); | |
10536 | ||
10537 | case NT_FREEBSD_PROCSTAT_FILES: | |
10538 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10539 | note); | |
10540 | ||
10541 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10542 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10543 | note); | |
10544 | ||
3350c5f5 | 10545 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10546 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10547 | |
aa1ed4a9 JB |
10548 | case NT_X86_XSTATE: |
10549 | if (note->namesz == 8) | |
10550 | return elfcore_grok_xstatereg (abfd, note); | |
10551 | else | |
10552 | return TRUE; | |
10553 | ||
e6f3b9c3 JB |
10554 | case NT_FREEBSD_PTLWPINFO: |
10555 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10556 | note); | |
10557 | ||
6d5be5d6 JB |
10558 | case NT_ARM_VFP: |
10559 | return elfcore_grok_arm_vfp (abfd, note); | |
10560 | ||
aa1ed4a9 JB |
10561 | default: |
10562 | return TRUE; | |
10563 | } | |
10564 | } | |
10565 | ||
b34976b6 | 10566 | static bfd_boolean |
217aa764 | 10567 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10568 | { |
10569 | char *cp; | |
10570 | ||
10571 | cp = strchr (note->namedata, '@'); | |
10572 | if (cp != NULL) | |
10573 | { | |
d2b64500 | 10574 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10575 | return TRUE; |
50b2bdb7 | 10576 | } |
b34976b6 | 10577 | return FALSE; |
50b2bdb7 AM |
10578 | } |
10579 | ||
b34976b6 | 10580 | static bfd_boolean |
217aa764 | 10581 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10582 | { |
80a04378 NC |
10583 | if (note->descsz <= 0x7c + 31) |
10584 | return FALSE; | |
10585 | ||
50b2bdb7 | 10586 | /* Signal number at offset 0x08. */ |
228e534f | 10587 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10588 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10589 | ||
10590 | /* Process ID at offset 0x50. */ | |
228e534f | 10591 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10592 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10593 | ||
10594 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10595 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10596 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10597 | ||
7720ba9f MK |
10598 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10599 | note); | |
50b2bdb7 AM |
10600 | } |
10601 | ||
b34976b6 | 10602 | static bfd_boolean |
217aa764 | 10603 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10604 | { |
10605 | int lwp; | |
10606 | ||
10607 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10608 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10609 | |
58e07198 | 10610 | switch (note->type) |
50b2bdb7 | 10611 | { |
58e07198 | 10612 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10613 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10614 | find this note before any of the others, which is fine, |
10615 | since the kernel writes this note out first when it | |
10616 | creates a core file. */ | |
50b2bdb7 | 10617 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10618 | #ifdef NT_NETBSDCORE_AUXV |
10619 | case NT_NETBSDCORE_AUXV: | |
10620 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10621 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
10622 | #endif | |
10623 | default: | |
10624 | break; | |
50b2bdb7 AM |
10625 | } |
10626 | ||
58e07198 | 10627 | /* As of March 2017 there are no other machine-independent notes |
b4db1224 JT |
10628 | defined for NetBSD core files. If the note type is less |
10629 | than the start of the machine-dependent note types, we don't | |
10630 | understand it. */ | |
47d9a591 | 10631 | |
b4db1224 | 10632 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10633 | return TRUE; |
50b2bdb7 AM |
10634 | |
10635 | ||
10636 | switch (bfd_get_arch (abfd)) | |
10637 | { | |
08a40648 AM |
10638 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10639 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10640 | |
10641 | case bfd_arch_alpha: | |
10642 | case bfd_arch_sparc: | |
10643 | switch (note->type) | |
08a40648 AM |
10644 | { |
10645 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10646 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10647 | |
08a40648 AM |
10648 | case NT_NETBSDCORE_FIRSTMACH+2: |
10649 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10650 | |
08a40648 AM |
10651 | default: |
10652 | return TRUE; | |
10653 | } | |
50b2bdb7 | 10654 | |
58e07198 CZ |
10655 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
10656 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
10657 | structure which lacks GBR. */ | |
10658 | ||
10659 | case bfd_arch_sh: | |
10660 | switch (note->type) | |
10661 | { | |
10662 | case NT_NETBSDCORE_FIRSTMACH+3: | |
10663 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10664 | ||
10665 | case NT_NETBSDCORE_FIRSTMACH+5: | |
10666 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10667 | ||
10668 | default: | |
10669 | return TRUE; | |
10670 | } | |
10671 | ||
08a40648 AM |
10672 | /* On all other arch's, PT_GETREGS == mach+1 and |
10673 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10674 | |
10675 | default: | |
10676 | switch (note->type) | |
08a40648 AM |
10677 | { |
10678 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10679 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10680 | |
08a40648 AM |
10681 | case NT_NETBSDCORE_FIRSTMACH+3: |
10682 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10683 | |
08a40648 AM |
10684 | default: |
10685 | return TRUE; | |
10686 | } | |
50b2bdb7 AM |
10687 | } |
10688 | /* NOTREACHED */ | |
10689 | } | |
10690 | ||
67cc5033 MK |
10691 | static bfd_boolean |
10692 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10693 | { | |
80a04378 NC |
10694 | if (note->descsz <= 0x48 + 31) |
10695 | return FALSE; | |
10696 | ||
67cc5033 | 10697 | /* Signal number at offset 0x08. */ |
228e534f | 10698 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10699 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10700 | ||
10701 | /* Process ID at offset 0x20. */ | |
228e534f | 10702 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10703 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10704 | ||
10705 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10706 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10707 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10708 | ||
10709 | return TRUE; | |
10710 | } | |
10711 | ||
10712 | static bfd_boolean | |
10713 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10714 | { | |
10715 | if (note->type == NT_OPENBSD_PROCINFO) | |
10716 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10717 | ||
10718 | if (note->type == NT_OPENBSD_REGS) | |
10719 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10720 | ||
10721 | if (note->type == NT_OPENBSD_FPREGS) | |
10722 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10723 | ||
10724 | if (note->type == NT_OPENBSD_XFPREGS) | |
10725 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10726 | ||
10727 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 10728 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
10729 | |
10730 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10731 | { | |
10732 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10733 | SEC_HAS_CONTENTS); | |
10734 | ||
10735 | if (sect == NULL) | |
10736 | return FALSE; | |
10737 | sect->size = note->descsz; | |
10738 | sect->filepos = note->descpos; | |
10739 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10740 | ||
10741 | return TRUE; | |
10742 | } | |
10743 | ||
10744 | return TRUE; | |
10745 | } | |
10746 | ||
07c6e936 | 10747 | static bfd_boolean |
d3fd4074 | 10748 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10749 | { |
10750 | void *ddata = note->descdata; | |
10751 | char buf[100]; | |
10752 | char *name; | |
10753 | asection *sect; | |
f8843e87 AM |
10754 | short sig; |
10755 | unsigned flags; | |
07c6e936 | 10756 | |
80a04378 NC |
10757 | if (note->descsz < 16) |
10758 | return FALSE; | |
10759 | ||
07c6e936 | 10760 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10761 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10762 | |
f8843e87 AM |
10763 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10764 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10765 | ||
10766 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10767 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10768 | |
10769 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10770 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10771 | { | |
228e534f AM |
10772 | elf_tdata (abfd)->core->signal = sig; |
10773 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10774 | } |
07c6e936 | 10775 | |
f8843e87 AM |
10776 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10777 | do not come from signals so we make sure we set the current | |
10778 | thread just in case. */ | |
10779 | if (flags & 0x00000080) | |
228e534f | 10780 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10781 | |
10782 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10783 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10784 | |
a50b1753 | 10785 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10786 | if (name == NULL) |
10787 | return FALSE; | |
10788 | strcpy (name, buf); | |
10789 | ||
117ed4f8 | 10790 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10791 | if (sect == NULL) |
10792 | return FALSE; | |
10793 | ||
07d6d2b8 AM |
10794 | sect->size = note->descsz; |
10795 | sect->filepos = note->descpos; | |
07c6e936 NC |
10796 | sect->alignment_power = 2; |
10797 | ||
10798 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10799 | } | |
10800 | ||
10801 | static bfd_boolean | |
d69f560c KW |
10802 | elfcore_grok_nto_regs (bfd *abfd, |
10803 | Elf_Internal_Note *note, | |
d3fd4074 | 10804 | long tid, |
d69f560c | 10805 | char *base) |
07c6e936 NC |
10806 | { |
10807 | char buf[100]; | |
10808 | char *name; | |
10809 | asection *sect; | |
10810 | ||
d69f560c | 10811 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10812 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10813 | |
a50b1753 | 10814 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10815 | if (name == NULL) |
10816 | return FALSE; | |
10817 | strcpy (name, buf); | |
10818 | ||
117ed4f8 | 10819 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10820 | if (sect == NULL) |
10821 | return FALSE; | |
10822 | ||
07d6d2b8 AM |
10823 | sect->size = note->descsz; |
10824 | sect->filepos = note->descpos; | |
07c6e936 NC |
10825 | sect->alignment_power = 2; |
10826 | ||
f8843e87 | 10827 | /* This is the current thread. */ |
228e534f | 10828 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10829 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10830 | |
10831 | return TRUE; | |
07c6e936 NC |
10832 | } |
10833 | ||
10834 | #define BFD_QNT_CORE_INFO 7 | |
10835 | #define BFD_QNT_CORE_STATUS 8 | |
10836 | #define BFD_QNT_CORE_GREG 9 | |
10837 | #define BFD_QNT_CORE_FPREG 10 | |
10838 | ||
10839 | static bfd_boolean | |
217aa764 | 10840 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10841 | { |
10842 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10843 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10844 | function. */ |
d3fd4074 | 10845 | static long tid = 1; |
07c6e936 NC |
10846 | |
10847 | switch (note->type) | |
10848 | { | |
d69f560c KW |
10849 | case BFD_QNT_CORE_INFO: |
10850 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10851 | case BFD_QNT_CORE_STATUS: | |
10852 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10853 | case BFD_QNT_CORE_GREG: | |
10854 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10855 | case BFD_QNT_CORE_FPREG: | |
10856 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10857 | default: | |
10858 | return TRUE; | |
07c6e936 NC |
10859 | } |
10860 | } | |
10861 | ||
b15fa79e AM |
10862 | static bfd_boolean |
10863 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10864 | { | |
10865 | char *name; | |
10866 | asection *sect; | |
10867 | size_t len; | |
10868 | ||
10869 | /* Use note name as section name. */ | |
10870 | len = note->namesz; | |
a50b1753 | 10871 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10872 | if (name == NULL) |
10873 | return FALSE; | |
10874 | memcpy (name, note->namedata, len); | |
10875 | name[len - 1] = '\0'; | |
10876 | ||
10877 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10878 | if (sect == NULL) | |
10879 | return FALSE; | |
10880 | ||
07d6d2b8 AM |
10881 | sect->size = note->descsz; |
10882 | sect->filepos = note->descpos; | |
b15fa79e AM |
10883 | sect->alignment_power = 1; |
10884 | ||
10885 | return TRUE; | |
10886 | } | |
10887 | ||
7c76fa91 MS |
10888 | /* Function: elfcore_write_note |
10889 | ||
47d9a591 | 10890 | Inputs: |
a39f3346 | 10891 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10892 | name of note |
10893 | type of note | |
10894 | data for note | |
10895 | size of data for note | |
10896 | ||
a39f3346 AM |
10897 | Writes note to end of buffer. ELF64 notes are written exactly as |
10898 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10899 | that they ought to have 8-byte namesz and descsz field, and have | |
10900 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10901 | ||
7c76fa91 | 10902 | Return: |
a39f3346 | 10903 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10904 | |
10905 | char * | |
a39f3346 | 10906 | elfcore_write_note (bfd *abfd, |
217aa764 | 10907 | char *buf, |
a39f3346 | 10908 | int *bufsiz, |
217aa764 | 10909 | const char *name, |
a39f3346 | 10910 | int type, |
217aa764 | 10911 | const void *input, |
a39f3346 | 10912 | int size) |
7c76fa91 MS |
10913 | { |
10914 | Elf_External_Note *xnp; | |
d4c88bbb | 10915 | size_t namesz; |
d4c88bbb | 10916 | size_t newspace; |
a39f3346 | 10917 | char *dest; |
7c76fa91 | 10918 | |
d4c88bbb | 10919 | namesz = 0; |
d4c88bbb | 10920 | if (name != NULL) |
a39f3346 | 10921 | namesz = strlen (name) + 1; |
d4c88bbb | 10922 | |
a39f3346 | 10923 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 10924 | |
a50b1753 | 10925 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
10926 | if (buf == NULL) |
10927 | return buf; | |
a39f3346 | 10928 | dest = buf + *bufsiz; |
7c76fa91 MS |
10929 | *bufsiz += newspace; |
10930 | xnp = (Elf_External_Note *) dest; | |
10931 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
10932 | H_PUT_32 (abfd, size, xnp->descsz); | |
10933 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
10934 | dest = xnp->name; |
10935 | if (name != NULL) | |
10936 | { | |
10937 | memcpy (dest, name, namesz); | |
10938 | dest += namesz; | |
a39f3346 | 10939 | while (namesz & 3) |
d4c88bbb AM |
10940 | { |
10941 | *dest++ = '\0'; | |
a39f3346 | 10942 | ++namesz; |
d4c88bbb AM |
10943 | } |
10944 | } | |
10945 | memcpy (dest, input, size); | |
a39f3346 AM |
10946 | dest += size; |
10947 | while (size & 3) | |
10948 | { | |
10949 | *dest++ = '\0'; | |
10950 | ++size; | |
10951 | } | |
10952 | return buf; | |
7c76fa91 MS |
10953 | } |
10954 | ||
602f1657 AM |
10955 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
10956 | possible string truncation. The "truncation" is not a bug. We | |
10957 | have an external representation of structs with fields that are not | |
10958 | necessarily NULL terminated and corresponding internal | |
10959 | representation fields that are one larger so that they can always | |
10960 | be NULL terminated. | |
10961 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
10962 | diagnostics inside functions, giving a hard error if you try to use | |
10963 | the finer control available with later versions. | |
10964 | gcc prior to 4.2 warns about diagnostic push and pop. | |
10965 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
10966 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
10967 | (*) Depending on your system header files! */ | |
d99b4b92 | 10968 | #if GCC_VERSION >= 8000 |
602f1657 AM |
10969 | # pragma GCC diagnostic push |
10970 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 10971 | #endif |
7c76fa91 | 10972 | char * |
217aa764 AM |
10973 | elfcore_write_prpsinfo (bfd *abfd, |
10974 | char *buf, | |
10975 | int *bufsiz, | |
10976 | const char *fname, | |
10977 | const char *psargs) | |
7c76fa91 | 10978 | { |
183e98be AM |
10979 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10980 | ||
10981 | if (bed->elf_backend_write_core_note != NULL) | |
10982 | { | |
10983 | char *ret; | |
10984 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10985 | NT_PRPSINFO, fname, psargs); | |
10986 | if (ret != NULL) | |
10987 | return ret; | |
10988 | } | |
7c76fa91 | 10989 | |
1f20dca5 | 10990 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 10991 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
10992 | if (bed->s->elfclass == ELFCLASS32) |
10993 | { | |
602f1657 | 10994 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
10995 | psinfo32_t data; |
10996 | int note_type = NT_PSINFO; | |
602f1657 | 10997 | # else |
183e98be AM |
10998 | prpsinfo32_t data; |
10999 | int note_type = NT_PRPSINFO; | |
602f1657 | 11000 | # endif |
183e98be AM |
11001 | |
11002 | memset (&data, 0, sizeof (data)); | |
11003 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11004 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11005 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11006 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
11007 | } |
11008 | else | |
602f1657 | 11009 | # endif |
183e98be | 11010 | { |
602f1657 | 11011 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
11012 | psinfo_t data; |
11013 | int note_type = NT_PSINFO; | |
602f1657 | 11014 | # else |
183e98be AM |
11015 | prpsinfo_t data; |
11016 | int note_type = NT_PRPSINFO; | |
602f1657 | 11017 | # endif |
7c76fa91 | 11018 | |
183e98be AM |
11019 | memset (&data, 0, sizeof (data)); |
11020 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
11021 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
11022 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 11023 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 11024 | } |
7c76fa91 MS |
11025 | #endif /* PSINFO_T or PRPSINFO_T */ |
11026 | ||
1f20dca5 UW |
11027 | free (buf); |
11028 | return NULL; | |
11029 | } | |
d99b4b92 | 11030 | #if GCC_VERSION >= 8000 |
602f1657 | 11031 | # pragma GCC diagnostic pop |
d99b4b92 | 11032 | #endif |
1f20dca5 | 11033 | |
70a38d42 SDJ |
11034 | char * |
11035 | elfcore_write_linux_prpsinfo32 | |
11036 | (bfd *abfd, char *buf, int *bufsiz, | |
11037 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11038 | { | |
a2f63b2e MR |
11039 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11040 | { | |
11041 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11042 | ||
11043 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11044 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11045 | &data, sizeof (data)); | |
11046 | } | |
11047 | else | |
11048 | { | |
11049 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11050 | |
a2f63b2e MR |
11051 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11052 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11053 | &data, sizeof (data)); | |
11054 | } | |
70a38d42 SDJ |
11055 | } |
11056 | ||
11057 | char * | |
11058 | elfcore_write_linux_prpsinfo64 | |
11059 | (bfd *abfd, char *buf, int *bufsiz, | |
11060 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11061 | { | |
3c9a7b0d MR |
11062 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11063 | { | |
11064 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11065 | ||
11066 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11067 | return elfcore_write_note (abfd, buf, bufsiz, | |
11068 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11069 | } | |
11070 | else | |
11071 | { | |
11072 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11073 | |
3c9a7b0d MR |
11074 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11075 | return elfcore_write_note (abfd, buf, bufsiz, | |
11076 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11077 | } | |
70a38d42 SDJ |
11078 | } |
11079 | ||
7c76fa91 | 11080 | char * |
217aa764 AM |
11081 | elfcore_write_prstatus (bfd *abfd, |
11082 | char *buf, | |
11083 | int *bufsiz, | |
11084 | long pid, | |
11085 | int cursig, | |
11086 | const void *gregs) | |
7c76fa91 | 11087 | { |
183e98be | 11088 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11089 | |
183e98be AM |
11090 | if (bed->elf_backend_write_core_note != NULL) |
11091 | { | |
11092 | char *ret; | |
11093 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11094 | NT_PRSTATUS, | |
11095 | pid, cursig, gregs); | |
11096 | if (ret != NULL) | |
11097 | return ret; | |
11098 | } | |
11099 | ||
1f20dca5 | 11100 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11101 | #if defined (HAVE_PRSTATUS32_T) |
11102 | if (bed->s->elfclass == ELFCLASS32) | |
11103 | { | |
11104 | prstatus32_t prstat; | |
11105 | ||
11106 | memset (&prstat, 0, sizeof (prstat)); | |
11107 | prstat.pr_pid = pid; | |
11108 | prstat.pr_cursig = cursig; | |
11109 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11110 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11111 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11112 | } | |
11113 | else | |
11114 | #endif | |
11115 | { | |
11116 | prstatus_t prstat; | |
11117 | ||
11118 | memset (&prstat, 0, sizeof (prstat)); | |
11119 | prstat.pr_pid = pid; | |
11120 | prstat.pr_cursig = cursig; | |
11121 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11122 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11123 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11124 | } | |
7c76fa91 MS |
11125 | #endif /* HAVE_PRSTATUS_T */ |
11126 | ||
1f20dca5 UW |
11127 | free (buf); |
11128 | return NULL; | |
11129 | } | |
11130 | ||
51316059 MS |
11131 | #if defined (HAVE_LWPSTATUS_T) |
11132 | char * | |
217aa764 AM |
11133 | elfcore_write_lwpstatus (bfd *abfd, |
11134 | char *buf, | |
11135 | int *bufsiz, | |
11136 | long pid, | |
11137 | int cursig, | |
11138 | const void *gregs) | |
51316059 MS |
11139 | { |
11140 | lwpstatus_t lwpstat; | |
183e98be | 11141 | const char *note_name = "CORE"; |
51316059 MS |
11142 | |
11143 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11144 | lwpstat.pr_lwpid = pid >> 16; | |
11145 | lwpstat.pr_cursig = cursig; | |
11146 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11147 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11148 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11149 | #if !defined(gregs) | |
11150 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11151 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11152 | #else | |
11153 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11154 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11155 | #endif | |
11156 | #endif | |
47d9a591 | 11157 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11158 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11159 | } | |
11160 | #endif /* HAVE_LWPSTATUS_T */ | |
11161 | ||
7c76fa91 MS |
11162 | #if defined (HAVE_PSTATUS_T) |
11163 | char * | |
217aa764 AM |
11164 | elfcore_write_pstatus (bfd *abfd, |
11165 | char *buf, | |
11166 | int *bufsiz, | |
11167 | long pid, | |
6c10990d NC |
11168 | int cursig ATTRIBUTE_UNUSED, |
11169 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11170 | { |
183e98be AM |
11171 | const char *note_name = "CORE"; |
11172 | #if defined (HAVE_PSTATUS32_T) | |
11173 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11174 | |
183e98be AM |
11175 | if (bed->s->elfclass == ELFCLASS32) |
11176 | { | |
11177 | pstatus32_t pstat; | |
11178 | ||
11179 | memset (&pstat, 0, sizeof (pstat)); | |
11180 | pstat.pr_pid = pid & 0xffff; | |
11181 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11182 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11183 | return buf; | |
11184 | } | |
11185 | else | |
11186 | #endif | |
11187 | { | |
11188 | pstatus_t pstat; | |
11189 | ||
11190 | memset (&pstat, 0, sizeof (pstat)); | |
11191 | pstat.pr_pid = pid & 0xffff; | |
11192 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11193 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11194 | return buf; | |
11195 | } | |
7c76fa91 MS |
11196 | } |
11197 | #endif /* HAVE_PSTATUS_T */ | |
11198 | ||
11199 | char * | |
217aa764 AM |
11200 | elfcore_write_prfpreg (bfd *abfd, |
11201 | char *buf, | |
11202 | int *bufsiz, | |
11203 | const void *fpregs, | |
11204 | int size) | |
7c76fa91 | 11205 | { |
183e98be | 11206 | const char *note_name = "CORE"; |
47d9a591 | 11207 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11208 | note_name, NT_FPREGSET, fpregs, size); |
11209 | } | |
11210 | ||
11211 | char * | |
217aa764 AM |
11212 | elfcore_write_prxfpreg (bfd *abfd, |
11213 | char *buf, | |
11214 | int *bufsiz, | |
11215 | const void *xfpregs, | |
11216 | int size) | |
7c76fa91 MS |
11217 | { |
11218 | char *note_name = "LINUX"; | |
47d9a591 | 11219 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11220 | note_name, NT_PRXFPREG, xfpregs, size); |
11221 | } | |
11222 | ||
4339cae0 L |
11223 | char * |
11224 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11225 | const void *xfpregs, int size) | |
11226 | { | |
97de3545 JB |
11227 | char *note_name; |
11228 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11229 | note_name = "FreeBSD"; | |
11230 | else | |
11231 | note_name = "LINUX"; | |
4339cae0 L |
11232 | return elfcore_write_note (abfd, buf, bufsiz, |
11233 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11234 | } | |
11235 | ||
97753bd5 AM |
11236 | char * |
11237 | elfcore_write_ppc_vmx (bfd *abfd, | |
11238 | char *buf, | |
11239 | int *bufsiz, | |
11240 | const void *ppc_vmx, | |
11241 | int size) | |
11242 | { | |
11243 | char *note_name = "LINUX"; | |
11244 | return elfcore_write_note (abfd, buf, bufsiz, | |
11245 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11246 | } | |
11247 | ||
89eeb0bc LM |
11248 | char * |
11249 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11250 | char *buf, |
11251 | int *bufsiz, | |
11252 | const void *ppc_vsx, | |
11253 | int size) | |
89eeb0bc LM |
11254 | { |
11255 | char *note_name = "LINUX"; | |
11256 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11257 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11258 | } |
11259 | ||
cb2366c1 EBM |
11260 | char * |
11261 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11262 | char *buf, |
11263 | int *bufsiz, | |
11264 | const void *ppc_tar, | |
11265 | int size) | |
cb2366c1 EBM |
11266 | { |
11267 | char *note_name = "LINUX"; | |
11268 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11269 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11270 | } |
11271 | ||
11272 | char * | |
11273 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11274 | char *buf, |
11275 | int *bufsiz, | |
11276 | const void *ppc_ppr, | |
11277 | int size) | |
cb2366c1 EBM |
11278 | { |
11279 | char *note_name = "LINUX"; | |
11280 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11281 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11282 | } |
11283 | ||
11284 | char * | |
11285 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11286 | char *buf, |
11287 | int *bufsiz, | |
11288 | const void *ppc_dscr, | |
11289 | int size) | |
cb2366c1 EBM |
11290 | { |
11291 | char *note_name = "LINUX"; | |
11292 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11293 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11294 | } |
11295 | ||
11296 | char * | |
11297 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11298 | char *buf, |
11299 | int *bufsiz, | |
11300 | const void *ppc_ebb, | |
11301 | int size) | |
cb2366c1 EBM |
11302 | { |
11303 | char *note_name = "LINUX"; | |
11304 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11305 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11306 | } |
11307 | ||
11308 | char * | |
11309 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11310 | char *buf, |
11311 | int *bufsiz, | |
11312 | const void *ppc_pmu, | |
11313 | int size) | |
cb2366c1 EBM |
11314 | { |
11315 | char *note_name = "LINUX"; | |
11316 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11317 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11318 | } |
11319 | ||
11320 | char * | |
11321 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11322 | char *buf, |
11323 | int *bufsiz, | |
11324 | const void *ppc_tm_cgpr, | |
11325 | int size) | |
cb2366c1 EBM |
11326 | { |
11327 | char *note_name = "LINUX"; | |
11328 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11329 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11330 | } |
11331 | ||
11332 | char * | |
11333 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11334 | char *buf, |
11335 | int *bufsiz, | |
11336 | const void *ppc_tm_cfpr, | |
11337 | int size) | |
cb2366c1 EBM |
11338 | { |
11339 | char *note_name = "LINUX"; | |
11340 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11341 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11342 | } |
11343 | ||
11344 | char * | |
11345 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11346 | char *buf, |
11347 | int *bufsiz, | |
11348 | const void *ppc_tm_cvmx, | |
11349 | int size) | |
cb2366c1 EBM |
11350 | { |
11351 | char *note_name = "LINUX"; | |
11352 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11353 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11354 | } |
11355 | ||
11356 | char * | |
11357 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11358 | char *buf, |
11359 | int *bufsiz, | |
11360 | const void *ppc_tm_cvsx, | |
11361 | int size) | |
cb2366c1 EBM |
11362 | { |
11363 | char *note_name = "LINUX"; | |
11364 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11365 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11366 | } |
11367 | ||
11368 | char * | |
11369 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11370 | char *buf, |
11371 | int *bufsiz, | |
11372 | const void *ppc_tm_spr, | |
11373 | int size) | |
cb2366c1 EBM |
11374 | { |
11375 | char *note_name = "LINUX"; | |
11376 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11377 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11378 | } |
11379 | ||
11380 | char * | |
11381 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11382 | char *buf, |
11383 | int *bufsiz, | |
11384 | const void *ppc_tm_ctar, | |
11385 | int size) | |
cb2366c1 EBM |
11386 | { |
11387 | char *note_name = "LINUX"; | |
11388 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11389 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11390 | } |
11391 | ||
11392 | char * | |
11393 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11394 | char *buf, |
11395 | int *bufsiz, | |
11396 | const void *ppc_tm_cppr, | |
11397 | int size) | |
cb2366c1 EBM |
11398 | { |
11399 | char *note_name = "LINUX"; | |
11400 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11401 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11402 | } |
11403 | ||
11404 | char * | |
11405 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11406 | char *buf, |
11407 | int *bufsiz, | |
11408 | const void *ppc_tm_cdscr, | |
11409 | int size) | |
cb2366c1 EBM |
11410 | { |
11411 | char *note_name = "LINUX"; | |
11412 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11413 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11414 | } |
11415 | ||
0675e188 UW |
11416 | static char * |
11417 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11418 | char *buf, | |
11419 | int *bufsiz, | |
11420 | const void *s390_high_gprs, | |
11421 | int size) | |
11422 | { | |
11423 | char *note_name = "LINUX"; | |
11424 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11425 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11426 | s390_high_gprs, size); |
11427 | } | |
11428 | ||
d7eeb400 MS |
11429 | char * |
11430 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11431 | char *buf, |
11432 | int *bufsiz, | |
11433 | const void *s390_timer, | |
11434 | int size) | |
d7eeb400 MS |
11435 | { |
11436 | char *note_name = "LINUX"; | |
11437 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11438 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11439 | } |
11440 | ||
11441 | char * | |
11442 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11443 | char *buf, |
11444 | int *bufsiz, | |
11445 | const void *s390_todcmp, | |
11446 | int size) | |
d7eeb400 MS |
11447 | { |
11448 | char *note_name = "LINUX"; | |
11449 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11450 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11451 | } |
11452 | ||
11453 | char * | |
11454 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11455 | char *buf, |
11456 | int *bufsiz, | |
11457 | const void *s390_todpreg, | |
11458 | int size) | |
d7eeb400 MS |
11459 | { |
11460 | char *note_name = "LINUX"; | |
11461 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11462 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11463 | } |
11464 | ||
11465 | char * | |
11466 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11467 | char *buf, |
11468 | int *bufsiz, | |
11469 | const void *s390_ctrs, | |
11470 | int size) | |
d7eeb400 MS |
11471 | { |
11472 | char *note_name = "LINUX"; | |
11473 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11474 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11475 | } |
11476 | ||
11477 | char * | |
11478 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11479 | char *buf, |
11480 | int *bufsiz, | |
11481 | const void *s390_prefix, | |
11482 | int size) | |
d7eeb400 MS |
11483 | { |
11484 | char *note_name = "LINUX"; | |
11485 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11486 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11487 | } |
11488 | ||
355b81d9 UW |
11489 | char * |
11490 | elfcore_write_s390_last_break (bfd *abfd, | |
11491 | char *buf, | |
11492 | int *bufsiz, | |
11493 | const void *s390_last_break, | |
11494 | int size) | |
11495 | { | |
11496 | char *note_name = "LINUX"; | |
11497 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11498 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11499 | s390_last_break, size); |
11500 | } | |
11501 | ||
11502 | char * | |
11503 | elfcore_write_s390_system_call (bfd *abfd, | |
11504 | char *buf, | |
11505 | int *bufsiz, | |
11506 | const void *s390_system_call, | |
11507 | int size) | |
11508 | { | |
11509 | char *note_name = "LINUX"; | |
11510 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11511 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11512 | s390_system_call, size); |
11513 | } | |
11514 | ||
abb3f6cc NC |
11515 | char * |
11516 | elfcore_write_s390_tdb (bfd *abfd, | |
11517 | char *buf, | |
11518 | int *bufsiz, | |
11519 | const void *s390_tdb, | |
11520 | int size) | |
11521 | { | |
11522 | char *note_name = "LINUX"; | |
11523 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11524 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11525 | } |
11526 | ||
4ef9f41a AA |
11527 | char * |
11528 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11529 | char *buf, | |
11530 | int *bufsiz, | |
11531 | const void *s390_vxrs_low, | |
11532 | int size) | |
11533 | { | |
11534 | char *note_name = "LINUX"; | |
11535 | return elfcore_write_note (abfd, buf, bufsiz, | |
11536 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11537 | } | |
11538 | ||
11539 | char * | |
11540 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11541 | char *buf, | |
11542 | int *bufsiz, | |
11543 | const void *s390_vxrs_high, | |
11544 | int size) | |
11545 | { | |
11546 | char *note_name = "LINUX"; | |
11547 | return elfcore_write_note (abfd, buf, bufsiz, | |
11548 | note_name, NT_S390_VXRS_HIGH, | |
11549 | s390_vxrs_high, size); | |
11550 | } | |
11551 | ||
88ab90e8 AA |
11552 | char * |
11553 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11554 | char *buf, | |
11555 | int *bufsiz, | |
11556 | const void *s390_gs_cb, | |
11557 | int size) | |
11558 | { | |
11559 | char *note_name = "LINUX"; | |
11560 | return elfcore_write_note (abfd, buf, bufsiz, | |
11561 | note_name, NT_S390_GS_CB, | |
11562 | s390_gs_cb, size); | |
11563 | } | |
11564 | ||
11565 | char * | |
11566 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11567 | char *buf, | |
11568 | int *bufsiz, | |
11569 | const void *s390_gs_bc, | |
11570 | int size) | |
11571 | { | |
11572 | char *note_name = "LINUX"; | |
11573 | return elfcore_write_note (abfd, buf, bufsiz, | |
11574 | note_name, NT_S390_GS_BC, | |
11575 | s390_gs_bc, size); | |
11576 | } | |
11577 | ||
faa9a424 UW |
11578 | char * |
11579 | elfcore_write_arm_vfp (bfd *abfd, | |
11580 | char *buf, | |
11581 | int *bufsiz, | |
11582 | const void *arm_vfp, | |
11583 | int size) | |
11584 | { | |
11585 | char *note_name = "LINUX"; | |
11586 | return elfcore_write_note (abfd, buf, bufsiz, | |
11587 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11588 | } | |
11589 | ||
652451f8 YZ |
11590 | char * |
11591 | elfcore_write_aarch_tls (bfd *abfd, | |
11592 | char *buf, | |
11593 | int *bufsiz, | |
11594 | const void *aarch_tls, | |
11595 | int size) | |
11596 | { | |
11597 | char *note_name = "LINUX"; | |
11598 | return elfcore_write_note (abfd, buf, bufsiz, | |
11599 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11600 | } | |
11601 | ||
11602 | char * | |
11603 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11604 | char *buf, | |
11605 | int *bufsiz, | |
11606 | const void *aarch_hw_break, | |
11607 | int size) | |
11608 | { | |
11609 | char *note_name = "LINUX"; | |
11610 | return elfcore_write_note (abfd, buf, bufsiz, | |
11611 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11612 | } | |
11613 | ||
11614 | char * | |
11615 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11616 | char *buf, | |
11617 | int *bufsiz, | |
11618 | const void *aarch_hw_watch, | |
11619 | int size) | |
11620 | { | |
11621 | char *note_name = "LINUX"; | |
11622 | return elfcore_write_note (abfd, buf, bufsiz, | |
11623 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11624 | } | |
11625 | ||
ad1cc4e4 AH |
11626 | char * |
11627 | elfcore_write_aarch_sve (bfd *abfd, | |
11628 | char *buf, | |
11629 | int *bufsiz, | |
11630 | const void *aarch_sve, | |
11631 | int size) | |
11632 | { | |
11633 | char *note_name = "LINUX"; | |
11634 | return elfcore_write_note (abfd, buf, bufsiz, | |
11635 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11636 | } | |
11637 | ||
e6c3b5bf AH |
11638 | char * |
11639 | elfcore_write_aarch_pauth (bfd *abfd, | |
11640 | char *buf, | |
11641 | int *bufsiz, | |
11642 | const void *aarch_pauth, | |
11643 | int size) | |
11644 | { | |
11645 | char *note_name = "LINUX"; | |
11646 | return elfcore_write_note (abfd, buf, bufsiz, | |
11647 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11648 | } | |
11649 | ||
bb864ac1 CES |
11650 | char * |
11651 | elfcore_write_register_note (bfd *abfd, | |
11652 | char *buf, | |
11653 | int *bufsiz, | |
11654 | const char *section, | |
11655 | const void *data, | |
11656 | int size) | |
11657 | { | |
11658 | if (strcmp (section, ".reg2") == 0) | |
11659 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11660 | if (strcmp (section, ".reg-xfp") == 0) | |
11661 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11662 | if (strcmp (section, ".reg-xstate") == 0) |
11663 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11664 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11665 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11666 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11667 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11668 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11669 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11670 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11671 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11672 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11673 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11674 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11675 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11676 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11677 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11678 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11679 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11680 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11681 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11682 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11683 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11684 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11685 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11686 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11687 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11688 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11689 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11690 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11691 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11692 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11693 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11694 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11695 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11696 | if (strcmp (section, ".reg-s390-timer") == 0) |
11697 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11698 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11699 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11700 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11701 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11702 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11703 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11704 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11705 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11706 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11707 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11708 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11709 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11710 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11711 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11712 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11713 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11714 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11715 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11716 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11717 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11718 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11719 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11720 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11721 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11722 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11723 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11724 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11725 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11726 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11727 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11728 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11729 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
11730 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
11731 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11732 | return NULL; |
11733 | } | |
11734 | ||
b34976b6 | 11735 | static bfd_boolean |
276da9b3 L |
11736 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11737 | size_t align) | |
252b5132 | 11738 | { |
c044fabd | 11739 | char *p; |
252b5132 | 11740 | |
276da9b3 L |
11741 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11742 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11743 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11744 | align is less than 4, we use 4 byte alignment. */ | |
11745 | if (align < 4) | |
11746 | align = 4; | |
ef135d43 NC |
11747 | if (align != 4 && align != 8) |
11748 | return FALSE; | |
276da9b3 | 11749 | |
252b5132 RH |
11750 | p = buf; |
11751 | while (p < buf + size) | |
11752 | { | |
c044fabd | 11753 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11754 | Elf_Internal_Note in; |
11755 | ||
baea7ef1 AM |
11756 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11757 | return FALSE; | |
11758 | ||
dc810e39 | 11759 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11760 | |
dc810e39 | 11761 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11762 | in.namedata = xnp->name; |
baea7ef1 AM |
11763 | if (in.namesz > buf - in.namedata + size) |
11764 | return FALSE; | |
252b5132 | 11765 | |
dc810e39 | 11766 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11767 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11768 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11769 | if (in.descsz != 0 |
11770 | && (in.descdata >= buf + size | |
11771 | || in.descsz > buf - in.descdata + size)) | |
11772 | return FALSE; | |
252b5132 | 11773 | |
718175fa | 11774 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11775 | { |
718175fa JK |
11776 | default: |
11777 | return TRUE; | |
11778 | ||
11779 | case bfd_core: | |
f64e188b | 11780 | { |
8acbedd6 | 11781 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11782 | struct |
718175fa | 11783 | { |
f64e188b | 11784 | const char * string; |
8acbedd6 | 11785 | size_t len; |
f64e188b | 11786 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11787 | } |
f64e188b | 11788 | grokers[] = |
b15fa79e | 11789 | { |
8acbedd6 | 11790 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11791 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11792 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11793 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11794 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
11795 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note) | |
f64e188b | 11796 | }; |
8acbedd6 | 11797 | #undef GROKER_ELEMENT |
f64e188b NC |
11798 | int i; |
11799 | ||
11800 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11801 | { |
11802 | if (in.namesz >= grokers[i].len | |
11803 | && strncmp (in.namedata, grokers[i].string, | |
11804 | grokers[i].len) == 0) | |
11805 | { | |
11806 | if (! grokers[i].func (abfd, & in)) | |
11807 | return FALSE; | |
11808 | break; | |
11809 | } | |
11810 | } | |
f64e188b NC |
11811 | break; |
11812 | } | |
718175fa JK |
11813 | |
11814 | case bfd_object: | |
11815 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11816 | { | |
11817 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11818 | return FALSE; | |
11819 | } | |
e21e5835 NC |
11820 | else if (in.namesz == sizeof "stapsdt" |
11821 | && strcmp (in.namedata, "stapsdt") == 0) | |
11822 | { | |
11823 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11824 | return FALSE; | |
11825 | } | |
718175fa | 11826 | break; |
08a40648 | 11827 | } |
252b5132 | 11828 | |
276da9b3 | 11829 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11830 | } |
11831 | ||
718175fa JK |
11832 | return TRUE; |
11833 | } | |
11834 | ||
11835 | static bfd_boolean | |
276da9b3 L |
11836 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11837 | size_t align) | |
718175fa JK |
11838 | { |
11839 | char *buf; | |
11840 | ||
957e1fc1 | 11841 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11842 | return TRUE; |
11843 | ||
11844 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11845 | return FALSE; | |
11846 | ||
f64e188b | 11847 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
11848 | if (buf == NULL) |
11849 | return FALSE; | |
11850 | ||
f64e188b NC |
11851 | /* PR 17512: file: ec08f814 |
11852 | 0-termintate the buffer so that string searches will not overflow. */ | |
11853 | buf[size] = 0; | |
11854 | ||
718175fa | 11855 | if (bfd_bread (buf, size, abfd) != size |
276da9b3 | 11856 | || !elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11857 | { |
11858 | free (buf); | |
11859 | return FALSE; | |
11860 | } | |
11861 | ||
252b5132 | 11862 | free (buf); |
b34976b6 | 11863 | return TRUE; |
252b5132 | 11864 | } |
98d8431c JB |
11865 | \f |
11866 | /* Providing external access to the ELF program header table. */ | |
11867 | ||
11868 | /* Return an upper bound on the number of bytes required to store a | |
11869 | copy of ABFD's program header table entries. Return -1 if an error | |
11870 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11871 | |
98d8431c | 11872 | long |
217aa764 | 11873 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11874 | { |
11875 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11876 | { | |
11877 | bfd_set_error (bfd_error_wrong_format); | |
11878 | return -1; | |
11879 | } | |
11880 | ||
936e320b | 11881 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11882 | } |
11883 | ||
98d8431c JB |
11884 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11885 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11886 | defined in include/elf/internal.h. To find out how large the | |
11887 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11888 | ||
11889 | Return the number of program header table entries read, or -1 if an | |
11890 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11891 | |
98d8431c | 11892 | int |
217aa764 | 11893 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11894 | { |
11895 | int num_phdrs; | |
11896 | ||
11897 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11898 | { | |
11899 | bfd_set_error (bfd_error_wrong_format); | |
11900 | return -1; | |
11901 | } | |
11902 | ||
11903 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
11904 | if (num_phdrs != 0) |
11905 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
11906 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
11907 | |
11908 | return num_phdrs; | |
11909 | } | |
ae4221d7 | 11910 | |
db6751f2 | 11911 | enum elf_reloc_type_class |
7e612e98 AM |
11912 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11913 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11914 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11915 | { |
11916 | return reloc_class_normal; | |
11917 | } | |
f8df10f4 | 11918 | |
47d9a591 | 11919 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11920 | relocation against a local symbol. */ |
11921 | ||
11922 | bfd_vma | |
217aa764 AM |
11923 | _bfd_elf_rela_local_sym (bfd *abfd, |
11924 | Elf_Internal_Sym *sym, | |
8517fae7 | 11925 | asection **psec, |
217aa764 | 11926 | Elf_Internal_Rela *rel) |
f8df10f4 | 11927 | { |
8517fae7 | 11928 | asection *sec = *psec; |
f8df10f4 JJ |
11929 | bfd_vma relocation; |
11930 | ||
6835821b AM |
11931 | relocation = (sec->output_section->vma |
11932 | + sec->output_offset | |
11933 | + sym->st_value); | |
f8df10f4 | 11934 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 11935 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 11936 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 11937 | { |
f8df10f4 | 11938 | rel->r_addend = |
8517fae7 | 11939 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 11940 | elf_section_data (sec)->sec_info, |
753731ee AM |
11941 | sym->st_value + rel->r_addend); |
11942 | if (sec != *psec) | |
11943 | { | |
11944 | /* If we have changed the section, and our original section is | |
11945 | marked with SEC_EXCLUDE, it means that the original | |
11946 | SEC_MERGE section has been completely subsumed in some | |
11947 | other SEC_MERGE section. In this case, we need to leave | |
11948 | some info around for --emit-relocs. */ | |
11949 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
11950 | sec->kept_section = *psec; | |
11951 | sec = *psec; | |
11952 | } | |
8517fae7 AM |
11953 | rel->r_addend -= relocation; |
11954 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
11955 | } |
11956 | return relocation; | |
11957 | } | |
c629eae0 JJ |
11958 | |
11959 | bfd_vma | |
217aa764 AM |
11960 | _bfd_elf_rel_local_sym (bfd *abfd, |
11961 | Elf_Internal_Sym *sym, | |
11962 | asection **psec, | |
11963 | bfd_vma addend) | |
47d9a591 | 11964 | { |
c629eae0 JJ |
11965 | asection *sec = *psec; |
11966 | ||
6835821b | 11967 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
11968 | return sym->st_value + addend; |
11969 | ||
11970 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 11971 | elf_section_data (sec)->sec_info, |
753731ee | 11972 | sym->st_value + addend); |
c629eae0 JJ |
11973 | } |
11974 | ||
37b01f6a DG |
11975 | /* Adjust an address within a section. Given OFFSET within SEC, return |
11976 | the new offset within the section, based upon changes made to the | |
11977 | section. Returns -1 if the offset is now invalid. | |
11978 | The offset (in abnd out) is in target sized bytes, however big a | |
11979 | byte may be. */ | |
11980 | ||
c629eae0 | 11981 | bfd_vma |
217aa764 | 11982 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 11983 | struct bfd_link_info *info, |
217aa764 AM |
11984 | asection *sec, |
11985 | bfd_vma offset) | |
c629eae0 | 11986 | { |
68bfbfcc | 11987 | switch (sec->sec_info_type) |
65765700 | 11988 | { |
dbaa2011 | 11989 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
11990 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
11991 | offset); | |
dbaa2011 | 11992 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 11993 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 11994 | |
65765700 | 11995 | default: |
310fd250 L |
11996 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
11997 | { | |
37b01f6a | 11998 | /* Reverse the offset. */ |
310fd250 L |
11999 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
12000 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
12001 | |
12002 | /* address_size and sec->size are in octets. Convert | |
12003 | to bytes before subtracting the original offset. */ | |
12004 | offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset; | |
310fd250 | 12005 | } |
65765700 JJ |
12006 | return offset; |
12007 | } | |
c629eae0 | 12008 | } |
3333a7c3 RM |
12009 | \f |
12010 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
12011 | reconstruct an ELF file by reading the segments out of remote memory | |
12012 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
12013 | points to. If not null, *LOADBASEP is filled in with the difference | |
12014 | between the VMAs from which the segments were read, and the VMAs the | |
12015 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
12016 | ||
12017 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12018 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12019 | should return zero on success or an `errno' code on failure. TEMPL must | |
12020 | be a BFD for an ELF target with the word size and byte order found in | |
12021 | the remote memory. */ | |
12022 | ||
12023 | bfd * | |
217aa764 AM |
12024 | bfd_elf_bfd_from_remote_memory |
12025 | (bfd *templ, | |
12026 | bfd_vma ehdr_vma, | |
f0a5d95a | 12027 | bfd_size_type size, |
217aa764 | 12028 | bfd_vma *loadbasep, |
fe78531d | 12029 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12030 | { |
12031 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12032 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12033 | } |
4c45e5c9 JJ |
12034 | \f |
12035 | long | |
c9727e01 AM |
12036 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12037 | long symcount ATTRIBUTE_UNUSED, | |
12038 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12039 | long dynsymcount, |
c9727e01 AM |
12040 | asymbol **dynsyms, |
12041 | asymbol **ret) | |
4c45e5c9 JJ |
12042 | { |
12043 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12044 | asection *relplt; | |
12045 | asymbol *s; | |
12046 | const char *relplt_name; | |
12047 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
12048 | arelent *p; | |
12049 | long count, i, n; | |
12050 | size_t size; | |
12051 | Elf_Internal_Shdr *hdr; | |
12052 | char *names; | |
12053 | asection *plt; | |
12054 | ||
8615f3f2 AM |
12055 | *ret = NULL; |
12056 | ||
90e3cdf2 JJ |
12057 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12058 | return 0; | |
12059 | ||
8615f3f2 AM |
12060 | if (dynsymcount <= 0) |
12061 | return 0; | |
12062 | ||
4c45e5c9 JJ |
12063 | if (!bed->plt_sym_val) |
12064 | return 0; | |
12065 | ||
12066 | relplt_name = bed->relplt_name; | |
12067 | if (relplt_name == NULL) | |
d35fd659 | 12068 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12069 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12070 | if (relplt == NULL) | |
12071 | return 0; | |
12072 | ||
12073 | hdr = &elf_section_data (relplt)->this_hdr; | |
12074 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12075 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12076 | return 0; | |
12077 | ||
12078 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12079 | if (plt == NULL) | |
12080 | return 0; | |
12081 | ||
12082 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 12083 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
12084 | return -1; |
12085 | ||
eea6121a | 12086 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12087 | size = count * sizeof (asymbol); |
12088 | p = relplt->relocation; | |
cb53bf42 | 12089 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12090 | { |
12091 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12092 | if (p->addend != 0) | |
12093 | { | |
12094 | #ifdef BFD64 | |
12095 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12096 | #else | |
12097 | size += sizeof ("+0x") - 1 + 8; | |
12098 | #endif | |
12099 | } | |
12100 | } | |
4c45e5c9 | 12101 | |
a50b1753 | 12102 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12103 | if (s == NULL) |
12104 | return -1; | |
12105 | ||
12106 | names = (char *) (s + count); | |
12107 | p = relplt->relocation; | |
12108 | n = 0; | |
cb53bf42 | 12109 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12110 | { |
12111 | size_t len; | |
12112 | bfd_vma addr; | |
12113 | ||
12114 | addr = bed->plt_sym_val (i, plt, p); | |
12115 | if (addr == (bfd_vma) -1) | |
12116 | continue; | |
12117 | ||
12118 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12119 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12120 | we are defining a symbol, ensure one of them is set. */ | |
12121 | if ((s->flags & BSF_LOCAL) == 0) | |
12122 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12123 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12124 | s->section = plt; |
12125 | s->value = addr - plt->vma; | |
12126 | s->name = names; | |
8f39ba8e | 12127 | s->udata.p = NULL; |
4c45e5c9 JJ |
12128 | len = strlen ((*p->sym_ptr_ptr)->name); |
12129 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12130 | names += len; | |
041de40d AM |
12131 | if (p->addend != 0) |
12132 | { | |
1d770845 | 12133 | char buf[30], *a; |
d324f6d6 | 12134 | |
041de40d AM |
12135 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12136 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12137 | bfd_sprintf_vma (abfd, buf, p->addend); |
12138 | for (a = buf; *a == '0'; ++a) | |
12139 | ; | |
12140 | len = strlen (a); | |
12141 | memcpy (names, a, len); | |
12142 | names += len; | |
041de40d | 12143 | } |
4c45e5c9 JJ |
12144 | memcpy (names, "@plt", sizeof ("@plt")); |
12145 | names += sizeof ("@plt"); | |
8f39ba8e | 12146 | ++s, ++n; |
4c45e5c9 JJ |
12147 | } |
12148 | ||
12149 | return n; | |
12150 | } | |
3d7f7666 | 12151 | |
821e6ff6 AM |
12152 | /* It is only used by x86-64 so far. |
12153 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12154 | but current usage would allow all of _bfd_std_section to be zero. */ |
12155 | static const asymbol lcomm_sym | |
12156 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12157 | asection _bfd_elf_large_com_section |
7eacd66b | 12158 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12159 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12160 | |
d1036acb | 12161 | void |
06f44071 AM |
12162 | _bfd_elf_post_process_headers (bfd *abfd ATTRIBUTE_UNUSED, |
12163 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
d1036acb | 12164 | { |
06f44071 AM |
12165 | } |
12166 | ||
cc364be6 AM |
12167 | bfd_boolean |
12168 | _bfd_elf_final_write_processing (bfd *abfd) | |
06f44071 AM |
12169 | { |
12170 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12171 | |
12172 | i_ehdrp = elf_elfheader (abfd); | |
12173 | ||
06f44071 AM |
12174 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12175 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12176 | |
df3a023b AM |
12177 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
12178 | SHF_GNU_MBIND sections or symbols of STT_GNU_IFUNC type or | |
12179 | STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12180 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12181 | { | |
12182 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12183 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12184 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12185 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12186 | { | |
12187 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
12188 | _bfd_error_handler (_("GNU_MBIND section is unsupported")); | |
12189 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) | |
12190 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is unsupported")); | |
12191 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) | |
12192 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is unsupported")); | |
12193 | bfd_set_error (bfd_error_bad_value); | |
12194 | return FALSE; | |
12195 | } | |
12196 | } | |
12197 | return TRUE; | |
d1036acb | 12198 | } |
fcb93ecf PB |
12199 | |
12200 | ||
12201 | /* Return TRUE for ELF symbol types that represent functions. | |
12202 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12203 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12204 | |
12205 | bfd_boolean | |
12206 | _bfd_elf_is_function_type (unsigned int type) | |
12207 | { | |
d8045f23 NC |
12208 | return (type == STT_FUNC |
12209 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12210 | } |
9f296da3 | 12211 | |
aef36ac1 AM |
12212 | /* If the ELF symbol SYM might be a function in SEC, return the |
12213 | function size and set *CODE_OFF to the function's entry point, | |
12214 | otherwise return zero. */ | |
9f296da3 | 12215 | |
aef36ac1 AM |
12216 | bfd_size_type |
12217 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12218 | bfd_vma *code_off) | |
9f296da3 | 12219 | { |
aef36ac1 AM |
12220 | bfd_size_type size; |
12221 | ||
ff9e0f5b | 12222 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12223 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12224 | || sym->section != sec) | |
12225 | return 0; | |
ff9e0f5b | 12226 | |
ff9e0f5b | 12227 | *code_off = sym->value; |
aef36ac1 AM |
12228 | size = 0; |
12229 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12230 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12231 | if (size == 0) | |
12232 | size = 1; | |
12233 | return size; | |
9f296da3 | 12234 | } |