Commit | Line | Data |
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252b5132 | 1 | /* ELF executable support for BFD. |
340b6d91 | 2 | |
82704155 | 3 | Copyright (C) 1993-2019 Free Software Foundation, Inc. |
252b5132 | 4 | |
5e8d7549 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
5e8d7549 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
5e8d7549 | 10 | (at your option) any later version. |
252b5132 | 11 | |
5e8d7549 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
5e8d7549 | 17 | You should have received a copy of the GNU General Public License |
b34976b6 | 18 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
21 | ||
252b5132 | 22 | |
1b74d094 BW |
23 | /* |
24 | SECTION | |
252b5132 RH |
25 | ELF backends |
26 | ||
27 | BFD support for ELF formats is being worked on. | |
28 | Currently, the best supported back ends are for sparc and i386 | |
29 | (running svr4 or Solaris 2). | |
30 | ||
31 | Documentation of the internals of the support code still needs | |
32 | to be written. The code is changing quickly enough that we | |
661a3fd4 | 33 | haven't bothered yet. */ |
252b5132 | 34 | |
7ee38065 MS |
35 | /* For sparc64-cross-sparc32. */ |
36 | #define _SYSCALL32 | |
252b5132 | 37 | #include "sysdep.h" |
3a551c7a | 38 | #include <limits.h> |
3db64b00 | 39 | #include "bfd.h" |
252b5132 RH |
40 | #include "bfdlink.h" |
41 | #include "libbfd.h" | |
42 | #define ARCH_SIZE 0 | |
43 | #include "elf-bfd.h" | |
e0e8c97f | 44 | #include "libiberty.h" |
ff59fc36 | 45 | #include "safe-ctype.h" |
de64ce13 | 46 | #include "elf-linux-core.h" |
252b5132 | 47 | |
8bc7f138 L |
48 | #ifdef CORE_HEADER |
49 | #include CORE_HEADER | |
50 | #endif | |
51 | ||
217aa764 | 52 | static int elf_sort_sections (const void *, const void *); |
c84fca4d | 53 | static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *); |
217aa764 | 54 | static bfd_boolean prep_headers (bfd *); |
ef10c3ac | 55 | static bfd_boolean swap_out_syms (bfd *, struct elf_strtab_hash **, int) ; |
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 | ||
f6fe1ccd L |
977 | static char * |
978 | convert_debug_to_zdebug (bfd *abfd, const char *name) | |
979 | { | |
980 | unsigned int len = strlen (name); | |
981 | char *new_name = bfd_alloc (abfd, len + 2); | |
982 | if (new_name == NULL) | |
983 | return NULL; | |
984 | new_name[0] = '.'; | |
985 | new_name[1] = 'z'; | |
986 | memcpy (new_name + 2, name + 1, len); | |
987 | return new_name; | |
988 | } | |
989 | ||
990 | static char * | |
991 | convert_zdebug_to_debug (bfd *abfd, const char *name) | |
992 | { | |
993 | unsigned int len = strlen (name); | |
994 | char *new_name = bfd_alloc (abfd, len); | |
995 | if (new_name == NULL) | |
996 | return NULL; | |
997 | new_name[0] = '.'; | |
998 | memcpy (new_name + 1, name + 2, len - 1); | |
999 | return new_name; | |
1000 | } | |
1001 | ||
cc5277b1 ML |
1002 | /* This a copy of lto_section defined in GCC (lto-streamer.h). */ |
1003 | ||
1004 | struct lto_section | |
1005 | { | |
1006 | int16_t major_version; | |
1007 | int16_t minor_version; | |
1008 | unsigned char slim_object; | |
1009 | ||
1010 | /* Flags is a private field that is not defined publicly. */ | |
1011 | uint16_t flags; | |
1012 | }; | |
1013 | ||
252b5132 RH |
1014 | /* Make a BFD section from an ELF section. We store a pointer to the |
1015 | BFD section in the bfd_section field of the header. */ | |
1016 | ||
b34976b6 | 1017 | bfd_boolean |
217aa764 AM |
1018 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1019 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1020 | const char *name, |
1021 | int shindex) | |
252b5132 RH |
1022 | { |
1023 | asection *newsect; | |
1024 | flagword flags; | |
9c5bfbb7 | 1025 | const struct elf_backend_data *bed; |
252b5132 RH |
1026 | |
1027 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1028 | return TRUE; |
252b5132 RH |
1029 | |
1030 | newsect = bfd_make_section_anyway (abfd, name); | |
1031 | if (newsect == NULL) | |
b34976b6 | 1032 | return FALSE; |
252b5132 | 1033 | |
1829f4b2 AM |
1034 | hdr->bfd_section = newsect; |
1035 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1036 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1037 | |
2f89ff8d L |
1038 | /* Always use the real type/flags. */ |
1039 | elf_section_type (newsect) = hdr->sh_type; | |
1040 | elf_section_flags (newsect) = hdr->sh_flags; | |
1041 | ||
252b5132 RH |
1042 | newsect->filepos = hdr->sh_offset; |
1043 | ||
1044 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
1045 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
1046 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 1047 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 1048 | return FALSE; |
252b5132 RH |
1049 | |
1050 | flags = SEC_NO_FLAGS; | |
1051 | if (hdr->sh_type != SHT_NOBITS) | |
1052 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1053 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1054 | flags |= SEC_GROUP; |
252b5132 RH |
1055 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1056 | { | |
1057 | flags |= SEC_ALLOC; | |
1058 | if (hdr->sh_type != SHT_NOBITS) | |
1059 | flags |= SEC_LOAD; | |
1060 | } | |
1061 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1062 | flags |= SEC_READONLY; | |
1063 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1064 | flags |= SEC_CODE; | |
1065 | else if ((flags & SEC_LOAD) != 0) | |
1066 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1067 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1068 | { | |
1069 | flags |= SEC_MERGE; | |
1070 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1071 | } |
84865015 NC |
1072 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1073 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1074 | if (hdr->sh_flags & SHF_GROUP) |
1075 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1076 | return FALSE; |
13ae64f3 JJ |
1077 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1078 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1079 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1080 | flags |= SEC_EXCLUDE; | |
252b5132 | 1081 | |
df3a023b AM |
1082 | switch (elf_elfheader (abfd)->e_ident[EI_OSABI]) |
1083 | { | |
1084 | /* FIXME: We should not recognize SHF_GNU_MBIND for ELFOSABI_NONE, | |
1085 | but binutils as of 2019-07-23 did not set the EI_OSABI header | |
1086 | byte. */ | |
1087 | case ELFOSABI_NONE: | |
1088 | case ELFOSABI_GNU: | |
1089 | case ELFOSABI_FREEBSD: | |
1090 | if ((hdr->sh_flags & SHF_GNU_MBIND) != 0) | |
1091 | elf_tdata (abfd)->has_gnu_osabi |= elf_gnu_osabi_mbind; | |
1092 | break; | |
1093 | } | |
1094 | ||
3d2b39cf | 1095 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1096 | { |
3d2b39cf L |
1097 | /* The debugging sections appear to be recognized only by name, |
1098 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1099 | if (name [0] == '.') |
1100 | { | |
f073ced3 AM |
1101 | const char *p; |
1102 | int n; | |
1103 | if (name[1] == 'd') | |
1104 | p = ".debug", n = 6; | |
1105 | else if (name[1] == 'g' && name[2] == 'n') | |
1106 | p = ".gnu.linkonce.wi.", n = 17; | |
1107 | else if (name[1] == 'g' && name[2] == 'd') | |
1108 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
1109 | else if (name[1] == 'l') | |
1110 | p = ".line", n = 5; | |
1111 | else if (name[1] == 's') | |
1112 | p = ".stab", n = 5; | |
1113 | else if (name[1] == 'z') | |
1114 | p = ".zdebug", n = 7; | |
1115 | else | |
1116 | p = NULL, n = 0; | |
1117 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
1118 | flags |= SEC_DEBUGGING; |
1119 | } | |
1120 | } | |
252b5132 RH |
1121 | |
1122 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1123 | only link a single copy of the section. This is used to support | |
1124 | g++. g++ will emit each template expansion in its own section. | |
1125 | The symbols will be defined as weak, so that multiple definitions | |
1126 | are permitted. The GNU linker extension is to actually discard | |
1127 | all but one of the sections. */ | |
0112cd26 | 1128 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1129 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1130 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1131 | ||
fa152c49 JW |
1132 | bed = get_elf_backend_data (abfd); |
1133 | if (bed->elf_backend_section_flags) | |
1134 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1135 | return FALSE; |
fa152c49 | 1136 | |
252b5132 | 1137 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 1138 | return FALSE; |
252b5132 | 1139 | |
718175fa JK |
1140 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1141 | separate debug info files which may have the segments offsets corrupted. | |
1142 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1143 | if (hdr->sh_type == SHT_NOTE) | |
1144 | { | |
baea7ef1 | 1145 | bfd_byte *contents; |
718175fa | 1146 | |
baea7ef1 | 1147 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1148 | return FALSE; |
1149 | ||
276da9b3 L |
1150 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1151 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1152 | free (contents); |
1153 | } | |
1154 | ||
252b5132 RH |
1155 | if ((flags & SEC_ALLOC) != 0) |
1156 | { | |
1157 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1158 | unsigned int i, nload; |
1159 | ||
1160 | /* Some ELF linkers produce binaries with all the program header | |
1161 | p_paddr fields zero. If we have such a binary with more than | |
1162 | one PT_LOAD header, then leave the section lma equal to vma | |
1163 | so that we don't create sections with overlapping lma. */ | |
1164 | phdr = elf_tdata (abfd)->phdr; | |
1165 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1166 | if (phdr->p_paddr != 0) | |
1167 | break; | |
1168 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1169 | ++nload; | |
1170 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1171 | return TRUE; | |
252b5132 | 1172 | |
252b5132 RH |
1173 | phdr = elf_tdata (abfd)->phdr; |
1174 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1175 | { | |
86b2281f AM |
1176 | if (((phdr->p_type == PT_LOAD |
1177 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1178 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1179 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1180 | { |
88967714 AM |
1181 | if ((flags & SEC_LOAD) == 0) |
1182 | newsect->lma = (phdr->p_paddr | |
1183 | + hdr->sh_addr - phdr->p_vaddr); | |
1184 | else | |
1185 | /* We used to use the same adjustment for SEC_LOAD | |
1186 | sections, but that doesn't work if the segment | |
1187 | is packed with code from multiple VMAs. | |
1188 | Instead we calculate the section LMA based on | |
1189 | the segment LMA. It is assumed that the | |
1190 | segment will contain sections with contiguous | |
1191 | LMAs, even if the VMAs are not. */ | |
1192 | newsect->lma = (phdr->p_paddr | |
1193 | + hdr->sh_offset - phdr->p_offset); | |
1194 | ||
1195 | /* With contiguous segments, we can't tell from file | |
1196 | offsets whether a section with zero size should | |
1197 | be placed at the end of one segment or the | |
1198 | beginning of the next. Decide based on vaddr. */ | |
1199 | if (hdr->sh_addr >= phdr->p_vaddr | |
1200 | && (hdr->sh_addr + hdr->sh_size | |
1201 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1202 | break; | |
252b5132 RH |
1203 | } |
1204 | } | |
1205 | } | |
1206 | ||
4a114e3e L |
1207 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1208 | .zdebug_*, after the section flags is set. */ | |
1209 | if ((flags & SEC_DEBUGGING) | |
1210 | && ((name[1] == 'd' && name[6] == '_') | |
1211 | || (name[1] == 'z' && name[7] == '_'))) | |
1212 | { | |
1213 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1214 | int compression_header_size; |
dab394de | 1215 | bfd_size_type uncompressed_size; |
4207142d | 1216 | unsigned int uncompressed_align_power; |
151411f8 L |
1217 | bfd_boolean compressed |
1218 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1219 | &compression_header_size, |
4207142d MW |
1220 | &uncompressed_size, |
1221 | &uncompressed_align_power); | |
151411f8 | 1222 | if (compressed) |
4a114e3e L |
1223 | { |
1224 | /* Compressed section. Check if we should decompress. */ | |
1225 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1226 | action = decompress; | |
1227 | } | |
151411f8 L |
1228 | |
1229 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1230 | section. Check if we should compress. */ | |
1231 | if (action == nothing) | |
4a114e3e | 1232 | { |
151411f8 L |
1233 | if (newsect->size != 0 |
1234 | && (abfd->flags & BFD_COMPRESS) | |
1235 | && compression_header_size >= 0 | |
dab394de | 1236 | && uncompressed_size > 0 |
151411f8 L |
1237 | && (!compressed |
1238 | || ((compression_header_size > 0) | |
1239 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1240 | action = compress; |
151411f8 L |
1241 | else |
1242 | return TRUE; | |
4a114e3e L |
1243 | } |
1244 | ||
151411f8 | 1245 | if (action == compress) |
4a114e3e | 1246 | { |
4a114e3e L |
1247 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1248 | { | |
4eca0228 | 1249 | _bfd_error_handler |
695344c0 | 1250 | /* xgettext:c-format */ |
871b3ab2 | 1251 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1252 | abfd, name); |
1253 | return FALSE; | |
1254 | } | |
151411f8 L |
1255 | } |
1256 | else | |
1257 | { | |
4a114e3e L |
1258 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1259 | { | |
4eca0228 | 1260 | _bfd_error_handler |
695344c0 | 1261 | /* xgettext:c-format */ |
871b3ab2 | 1262 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1263 | abfd, name); |
1264 | return FALSE; | |
1265 | } | |
151411f8 L |
1266 | } |
1267 | ||
f6fe1ccd | 1268 | if (abfd->is_linker_input) |
151411f8 | 1269 | { |
f6fe1ccd L |
1270 | if (name[1] == 'z' |
1271 | && (action == decompress | |
1272 | || (action == compress | |
1273 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1274 | { |
f6fe1ccd L |
1275 | /* Convert section name from .zdebug_* to .debug_* so |
1276 | that linker will consider this section as a debug | |
1277 | section. */ | |
1278 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1279 | if (new_name == NULL) |
1280 | return FALSE; | |
f6fe1ccd | 1281 | bfd_rename_section (abfd, newsect, new_name); |
151411f8 | 1282 | } |
4a114e3e | 1283 | } |
f6fe1ccd L |
1284 | else |
1285 | /* For objdump, don't rename the section. For objcopy, delay | |
1286 | section rename to elf_fake_sections. */ | |
1287 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1288 | } |
1289 | ||
cc5277b1 ML |
1290 | /* GCC uses .gnu.lto_.lto.<some_hash> as a LTO bytecode information |
1291 | section. */ | |
1292 | const char *lto_section_name = ".gnu.lto_.lto."; | |
1293 | if (strncmp (name, lto_section_name, strlen (lto_section_name)) == 0) | |
1294 | { | |
1295 | struct lto_section lsection; | |
1296 | if (bfd_get_section_contents (abfd, newsect, &lsection, 0, | |
1297 | sizeof (struct lto_section))) | |
1298 | abfd->lto_slim_object = lsection.slim_object; | |
1299 | } | |
1300 | ||
b34976b6 | 1301 | return TRUE; |
252b5132 RH |
1302 | } |
1303 | ||
84865015 NC |
1304 | const char *const bfd_elf_section_type_names[] = |
1305 | { | |
252b5132 RH |
1306 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1307 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1308 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1309 | }; | |
1310 | ||
1049f94e | 1311 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1312 | output, and the reloc is against an external symbol, and nothing |
1313 | has given us any additional addend, the resulting reloc will also | |
1314 | be against the same symbol. In such a case, we don't want to | |
1315 | change anything about the way the reloc is handled, since it will | |
1316 | all be done at final link time. Rather than put special case code | |
1317 | into bfd_perform_relocation, all the reloc types use this howto | |
1318 | function. It just short circuits the reloc if producing | |
1049f94e | 1319 | relocatable output against an external symbol. */ |
252b5132 | 1320 | |
252b5132 | 1321 | bfd_reloc_status_type |
217aa764 AM |
1322 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1323 | arelent *reloc_entry, | |
1324 | asymbol *symbol, | |
1325 | void *data ATTRIBUTE_UNUSED, | |
1326 | asection *input_section, | |
1327 | bfd *output_bfd, | |
1328 | char **error_message ATTRIBUTE_UNUSED) | |
1329 | { | |
1330 | if (output_bfd != NULL | |
252b5132 RH |
1331 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1332 | && (! reloc_entry->howto->partial_inplace | |
1333 | || reloc_entry->addend == 0)) | |
1334 | { | |
1335 | reloc_entry->address += input_section->output_offset; | |
1336 | return bfd_reloc_ok; | |
1337 | } | |
1338 | ||
1339 | return bfd_reloc_continue; | |
1340 | } | |
1341 | \f | |
84865015 NC |
1342 | /* Returns TRUE if section A matches section B. |
1343 | Names, addresses and links may be different, but everything else | |
1344 | should be the same. */ | |
1345 | ||
1346 | static bfd_boolean | |
5522f910 NC |
1347 | section_match (const Elf_Internal_Shdr * a, |
1348 | const Elf_Internal_Shdr * b) | |
84865015 | 1349 | { |
ac85e67c AM |
1350 | if (a->sh_type != b->sh_type |
1351 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1352 | || a->sh_addralign != b->sh_addralign | |
1353 | || a->sh_entsize != b->sh_entsize) | |
1354 | return FALSE; | |
1355 | if (a->sh_type == SHT_SYMTAB | |
1356 | || a->sh_type == SHT_STRTAB) | |
1357 | return TRUE; | |
1358 | return a->sh_size == b->sh_size; | |
84865015 NC |
1359 | } |
1360 | ||
1361 | /* Find a section in OBFD that has the same characteristics | |
1362 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1363 | none can be found. Check's section HINT first, as this is likely | |
1364 | to be the correct section. */ | |
1365 | ||
1366 | static unsigned int | |
5cc4ca83 ST |
1367 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1368 | const unsigned int hint) | |
84865015 NC |
1369 | { |
1370 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1371 | unsigned int i; | |
1372 | ||
a55c9876 NC |
1373 | BFD_ASSERT (iheader != NULL); |
1374 | ||
1375 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1376 | if (hint < elf_numsections (obfd) |
1377 | && oheaders[hint] != NULL | |
a55c9876 | 1378 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1379 | return hint; |
1380 | ||
1381 | for (i = 1; i < elf_numsections (obfd); i++) | |
1382 | { | |
1383 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1384 | ||
a55c9876 NC |
1385 | if (oheader == NULL) |
1386 | continue; | |
84865015 NC |
1387 | if (section_match (oheader, iheader)) |
1388 | /* FIXME: Do we care if there is a potential for | |
1389 | multiple matches ? */ | |
1390 | return i; | |
1391 | } | |
1392 | ||
1393 | return SHN_UNDEF; | |
1394 | } | |
1395 | ||
5522f910 NC |
1396 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1397 | Processor specific section, based upon a matching input section. | |
1398 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1399 | |
5522f910 NC |
1400 | static bfd_boolean |
1401 | copy_special_section_fields (const bfd *ibfd, | |
1402 | bfd *obfd, | |
1403 | const Elf_Internal_Shdr *iheader, | |
1404 | Elf_Internal_Shdr *oheader, | |
1405 | const unsigned int secnum) | |
1406 | { | |
1407 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1408 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1409 | bfd_boolean changed = FALSE; | |
1410 | unsigned int sh_link; | |
1411 | ||
1412 | if (oheader->sh_type == SHT_NOBITS) | |
1413 | { | |
1414 | /* This is a feature for objcopy --only-keep-debug: | |
1415 | When a section's type is changed to NOBITS, we preserve | |
1416 | the sh_link and sh_info fields so that they can be | |
1417 | matched up with the original. | |
1418 | ||
1419 | Note: Strictly speaking these assignments are wrong. | |
1420 | The sh_link and sh_info fields should point to the | |
1421 | relevent sections in the output BFD, which may not be in | |
1422 | the same location as they were in the input BFD. But | |
1423 | the whole point of this action is to preserve the | |
1424 | original values of the sh_link and sh_info fields, so | |
1425 | that they can be matched up with the section headers in | |
1426 | the original file. So strictly speaking we may be | |
1427 | creating an invalid ELF file, but it is only for a file | |
1428 | that just contains debug info and only for sections | |
1429 | without any contents. */ | |
1430 | if (oheader->sh_link == 0) | |
1431 | oheader->sh_link = iheader->sh_link; | |
1432 | if (oheader->sh_info == 0) | |
1433 | oheader->sh_info = iheader->sh_info; | |
1434 | return TRUE; | |
1435 | } | |
1436 | ||
1437 | /* Allow the target a chance to decide how these fields should be set. */ | |
1438 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1439 | && bed->elf_backend_copy_special_section_fields | |
1440 | (ibfd, obfd, iheader, oheader)) | |
1441 | return TRUE; | |
1442 | ||
1443 | /* We have an iheader which might match oheader, and which has non-zero | |
1444 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1445 | the section in the output bfd which corresponds to the linked section | |
1446 | in the input bfd. */ | |
1447 | if (iheader->sh_link != SHN_UNDEF) | |
1448 | { | |
4f3ca05b NC |
1449 | /* See PR 20931 for a reproducer. */ |
1450 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1451 | { | |
76cfced5 | 1452 | _bfd_error_handler |
4f3ca05b | 1453 | /* xgettext:c-format */ |
9793eb77 | 1454 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1455 | ibfd, iheader->sh_link, secnum); |
1456 | return FALSE; | |
1457 | } | |
1458 | ||
5522f910 NC |
1459 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1460 | if (sh_link != SHN_UNDEF) | |
1461 | { | |
1462 | oheader->sh_link = sh_link; | |
1463 | changed = TRUE; | |
1464 | } | |
1465 | else | |
1466 | /* FIXME: Should we install iheader->sh_link | |
1467 | if we could not find a match ? */ | |
76cfced5 | 1468 | _bfd_error_handler |
695344c0 | 1469 | /* xgettext:c-format */ |
9793eb77 | 1470 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1471 | } |
1472 | ||
1473 | if (iheader->sh_info) | |
1474 | { | |
1475 | /* The sh_info field can hold arbitrary information, but if the | |
1476 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1477 | section index. */ | |
1478 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1479 | { | |
1480 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1481 | iheader->sh_info); | |
1482 | if (sh_link != SHN_UNDEF) | |
1483 | oheader->sh_flags |= SHF_INFO_LINK; | |
1484 | } | |
1485 | else | |
1486 | /* No idea what it means - just copy it. */ | |
1487 | sh_link = iheader->sh_info; | |
1488 | ||
1489 | if (sh_link != SHN_UNDEF) | |
1490 | { | |
1491 | oheader->sh_info = sh_link; | |
1492 | changed = TRUE; | |
1493 | } | |
1494 | else | |
76cfced5 | 1495 | _bfd_error_handler |
695344c0 | 1496 | /* xgettext:c-format */ |
9793eb77 | 1497 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1498 | } |
1499 | ||
1500 | return changed; | |
1501 | } | |
07d6d2b8 | 1502 | |
0ac4564e L |
1503 | /* Copy the program header and other data from one object module to |
1504 | another. */ | |
252b5132 | 1505 | |
b34976b6 | 1506 | bfd_boolean |
217aa764 | 1507 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1508 | { |
5522f910 NC |
1509 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1510 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1511 | const struct elf_backend_data *bed; | |
84865015 NC |
1512 | unsigned int i; |
1513 | ||
2d502050 | 1514 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1515 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1516 | return TRUE; |
2d502050 | 1517 | |
57b828ef L |
1518 | if (!elf_flags_init (obfd)) |
1519 | { | |
1520 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1521 | elf_flags_init (obfd) = TRUE; | |
1522 | } | |
2d502050 | 1523 | |
0ac4564e | 1524 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1525 | |
1526 | /* Also copy the EI_OSABI field. */ | |
1527 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1528 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1529 | |
5522f910 NC |
1530 | /* If set, copy the EI_ABIVERSION field. */ |
1531 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1532 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1533 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1534 | |
104d59d1 JM |
1535 | /* Copy object attributes. */ |
1536 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1537 | |
84865015 NC |
1538 | if (iheaders == NULL || oheaders == NULL) |
1539 | return TRUE; | |
63b9bbb7 | 1540 | |
5522f910 NC |
1541 | bed = get_elf_backend_data (obfd); |
1542 | ||
1543 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1544 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1545 | { |
84865015 NC |
1546 | unsigned int j; |
1547 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1548 | |
5522f910 NC |
1549 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1550 | because of a special case need for generating separate debug info | |
1551 | files. See below for more details. */ | |
84865015 NC |
1552 | if (oheader == NULL |
1553 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1554 | && oheader->sh_type < SHT_LOOS)) |
1555 | continue; | |
1556 | ||
1557 | /* Ignore empty sections, and sections whose | |
1558 | fields have already been initialised. */ | |
1559 | if (oheader->sh_size == 0 | |
84865015 NC |
1560 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1561 | continue; | |
63b9bbb7 | 1562 | |
84865015 | 1563 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1564 | First we try for a direct mapping between the input and output sections. */ |
1565 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1566 | { | |
1567 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1568 | ||
1569 | if (iheader == NULL) | |
1570 | continue; | |
1571 | ||
1572 | if (oheader->bfd_section != NULL | |
1573 | && iheader->bfd_section != NULL | |
1574 | && iheader->bfd_section->output_section != NULL | |
1575 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1576 | { | |
1577 | /* We have found a connection from the input section to the | |
1578 | output section. Attempt to copy the header fields. If | |
1579 | this fails then do not try any further sections - there | |
1580 | should only be a one-to-one mapping between input and output. */ | |
1581 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1582 | j = elf_numsections (ibfd); | |
1583 | break; | |
1584 | } | |
1585 | } | |
1586 | ||
1587 | if (j < elf_numsections (ibfd)) | |
1588 | continue; | |
1589 | ||
1590 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1591 | Unfortunately we cannot compare names as the output string table |
1592 | is empty, so instead we check size, address and type. */ | |
1593 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1594 | { | |
5522f910 | 1595 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1596 | |
5522f910 NC |
1597 | if (iheader == NULL) |
1598 | continue; | |
1599 | ||
1600 | /* Try matching fields in the input section's header. | |
1601 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1602 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1603 | input type. */ | |
1604 | if ((oheader->sh_type == SHT_NOBITS | |
1605 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1606 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1607 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1608 | && iheader->sh_addralign == oheader->sh_addralign |
1609 | && iheader->sh_entsize == oheader->sh_entsize | |
1610 | && iheader->sh_size == oheader->sh_size | |
1611 | && iheader->sh_addr == oheader->sh_addr | |
1612 | && (iheader->sh_info != oheader->sh_info | |
1613 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1614 | { |
5522f910 NC |
1615 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1616 | break; | |
63b9bbb7 NC |
1617 | } |
1618 | } | |
5522f910 NC |
1619 | |
1620 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1621 | { | |
1622 | /* Final attempt. Call the backend copy function | |
1623 | with a NULL input section. */ | |
1624 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1625 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1626 | } | |
63b9bbb7 NC |
1627 | } |
1628 | ||
b34976b6 | 1629 | return TRUE; |
2d502050 L |
1630 | } |
1631 | ||
cedc298e L |
1632 | static const char * |
1633 | get_segment_type (unsigned int p_type) | |
1634 | { | |
1635 | const char *pt; | |
1636 | switch (p_type) | |
1637 | { | |
1638 | case PT_NULL: pt = "NULL"; break; | |
1639 | case PT_LOAD: pt = "LOAD"; break; | |
1640 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1641 | case PT_INTERP: pt = "INTERP"; break; | |
1642 | case PT_NOTE: pt = "NOTE"; break; | |
1643 | case PT_SHLIB: pt = "SHLIB"; break; | |
1644 | case PT_PHDR: pt = "PHDR"; break; | |
1645 | case PT_TLS: pt = "TLS"; break; | |
1646 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1647 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1648 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1649 | default: pt = NULL; break; | |
1650 | } | |
1651 | return pt; | |
1652 | } | |
1653 | ||
f0b79d91 L |
1654 | /* Print out the program headers. */ |
1655 | ||
b34976b6 | 1656 | bfd_boolean |
217aa764 | 1657 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1658 | { |
a50b1753 | 1659 | FILE *f = (FILE *) farg; |
252b5132 RH |
1660 | Elf_Internal_Phdr *p; |
1661 | asection *s; | |
1662 | bfd_byte *dynbuf = NULL; | |
1663 | ||
1664 | p = elf_tdata (abfd)->phdr; | |
1665 | if (p != NULL) | |
1666 | { | |
1667 | unsigned int i, c; | |
1668 | ||
1669 | fprintf (f, _("\nProgram Header:\n")); | |
1670 | c = elf_elfheader (abfd)->e_phnum; | |
1671 | for (i = 0; i < c; i++, p++) | |
1672 | { | |
cedc298e | 1673 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1674 | char buf[20]; |
1675 | ||
cedc298e | 1676 | if (pt == NULL) |
252b5132 | 1677 | { |
cedc298e L |
1678 | sprintf (buf, "0x%lx", p->p_type); |
1679 | pt = buf; | |
252b5132 | 1680 | } |
dc810e39 | 1681 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1682 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1683 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1684 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1685 | fprintf (f, " paddr 0x"); |
60b89a18 | 1686 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1687 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1688 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1689 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1690 | fprintf (f, " memsz 0x"); |
60b89a18 | 1691 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1692 | fprintf (f, " flags %c%c%c", |
1693 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1694 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1695 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1696 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1697 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1698 | fprintf (f, "\n"); |
1699 | } | |
1700 | } | |
1701 | ||
1702 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1703 | if (s != NULL) | |
1704 | { | |
cb33740c | 1705 | unsigned int elfsec; |
dc810e39 | 1706 | unsigned long shlink; |
252b5132 RH |
1707 | bfd_byte *extdyn, *extdynend; |
1708 | size_t extdynsize; | |
217aa764 | 1709 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1710 | |
1711 | fprintf (f, _("\nDynamic Section:\n")); | |
1712 | ||
eea6121a | 1713 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1714 | goto error_return; |
1715 | ||
1716 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1717 | if (elfsec == SHN_BAD) |
252b5132 | 1718 | goto error_return; |
dc810e39 | 1719 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1720 | |
1721 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1722 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1723 | ||
1724 | extdyn = dynbuf; | |
06614111 NC |
1725 | /* PR 17512: file: 6f427532. */ |
1726 | if (s->size < extdynsize) | |
1727 | goto error_return; | |
eea6121a | 1728 | extdynend = extdyn + s->size; |
1036838a | 1729 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1730 | Fix range check. */ |
1036838a | 1731 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1732 | { |
1733 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1734 | const char *name = ""; |
252b5132 | 1735 | char ab[20]; |
b34976b6 | 1736 | bfd_boolean stringp; |
ad9563d6 | 1737 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1738 | |
217aa764 | 1739 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1740 | |
1741 | if (dyn.d_tag == DT_NULL) | |
1742 | break; | |
1743 | ||
b34976b6 | 1744 | stringp = FALSE; |
252b5132 RH |
1745 | switch (dyn.d_tag) |
1746 | { | |
1747 | default: | |
ad9563d6 CM |
1748 | if (bed->elf_backend_get_target_dtag) |
1749 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1750 | ||
1751 | if (!strcmp (name, "")) | |
1752 | { | |
cd9af601 | 1753 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1754 | name = ab; |
1755 | } | |
252b5132 RH |
1756 | break; |
1757 | ||
b34976b6 | 1758 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1759 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1760 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1761 | case DT_HASH: name = "HASH"; break; | |
1762 | case DT_STRTAB: name = "STRTAB"; break; | |
1763 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1764 | case DT_RELA: name = "RELA"; break; | |
1765 | case DT_RELASZ: name = "RELASZ"; break; | |
1766 | case DT_RELAENT: name = "RELAENT"; break; | |
1767 | case DT_STRSZ: name = "STRSZ"; break; | |
1768 | case DT_SYMENT: name = "SYMENT"; break; | |
1769 | case DT_INIT: name = "INIT"; break; | |
1770 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1771 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1772 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1773 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1774 | case DT_REL: name = "REL"; break; | |
1775 | case DT_RELSZ: name = "RELSZ"; break; | |
1776 | case DT_RELENT: name = "RELENT"; break; | |
1777 | case DT_PLTREL: name = "PLTREL"; break; | |
1778 | case DT_DEBUG: name = "DEBUG"; break; | |
1779 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1780 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1781 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1782 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1783 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1784 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1785 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1786 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1787 | case DT_FLAGS: name = "FLAGS"; break; |
1788 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1789 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1790 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1791 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1792 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1793 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1794 | case DT_FEATURE: name = "FEATURE"; break; | |
1795 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1796 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1797 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1798 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1799 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1800 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1801 | case DT_PLTPAD: name = "PLTPAD"; break; |
1802 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1803 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1804 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1805 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1806 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1807 | case DT_VERSYM: name = "VERSYM"; break; |
1808 | case DT_VERDEF: name = "VERDEF"; break; | |
1809 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1810 | case DT_VERNEED: name = "VERNEED"; break; | |
1811 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1812 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1813 | case DT_USED: name = "USED"; break; |
b34976b6 | 1814 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1815 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1816 | } |
1817 | ||
ad9563d6 | 1818 | fprintf (f, " %-20s ", name); |
252b5132 | 1819 | if (! stringp) |
a1f3c56e AN |
1820 | { |
1821 | fprintf (f, "0x"); | |
1822 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1823 | } | |
252b5132 RH |
1824 | else |
1825 | { | |
1826 | const char *string; | |
dc810e39 | 1827 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1828 | |
dc810e39 | 1829 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1830 | if (string == NULL) |
1831 | goto error_return; | |
1832 | fprintf (f, "%s", string); | |
1833 | } | |
1834 | fprintf (f, "\n"); | |
1835 | } | |
1836 | ||
1837 | free (dynbuf); | |
1838 | dynbuf = NULL; | |
1839 | } | |
1840 | ||
1841 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1842 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1843 | { | |
fc0e6df6 | 1844 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1845 | return FALSE; |
252b5132 RH |
1846 | } |
1847 | ||
1848 | if (elf_dynverdef (abfd) != 0) | |
1849 | { | |
1850 | Elf_Internal_Verdef *t; | |
1851 | ||
1852 | fprintf (f, _("\nVersion definitions:\n")); | |
1853 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1854 | { | |
1855 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1856 | t->vd_flags, t->vd_hash, |
1857 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1858 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1859 | { |
1860 | Elf_Internal_Verdaux *a; | |
1861 | ||
1862 | fprintf (f, "\t"); | |
1863 | for (a = t->vd_auxptr->vda_nextptr; | |
1864 | a != NULL; | |
1865 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1866 | fprintf (f, "%s ", |
1867 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1868 | fprintf (f, "\n"); |
1869 | } | |
1870 | } | |
1871 | } | |
1872 | ||
1873 | if (elf_dynverref (abfd) != 0) | |
1874 | { | |
1875 | Elf_Internal_Verneed *t; | |
1876 | ||
1877 | fprintf (f, _("\nVersion References:\n")); | |
1878 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1879 | { | |
1880 | Elf_Internal_Vernaux *a; | |
1881 | ||
d0fb9a8d JJ |
1882 | fprintf (f, _(" required from %s:\n"), |
1883 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1884 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1885 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1886 | a->vna_flags, a->vna_other, |
1887 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1888 | } |
1889 | } | |
1890 | ||
b34976b6 | 1891 | return TRUE; |
252b5132 RH |
1892 | |
1893 | error_return: | |
1894 | if (dynbuf != NULL) | |
1895 | free (dynbuf); | |
b34976b6 | 1896 | return FALSE; |
252b5132 RH |
1897 | } |
1898 | ||
bb4d2ac2 L |
1899 | /* Get version string. */ |
1900 | ||
1901 | const char * | |
60bb06bc L |
1902 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1903 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1904 | { |
1905 | const char *version_string = NULL; | |
1906 | if (elf_dynversym (abfd) != 0 | |
1907 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1908 | { | |
1909 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1910 | ||
1911 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1912 | vernum &= VERSYM_VERSION; | |
1913 | ||
1914 | if (vernum == 0) | |
1915 | version_string = ""; | |
1f6f5dba L |
1916 | else if (vernum == 1 |
1917 | && (vernum > elf_tdata (abfd)->cverdefs | |
1918 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1919 | == VER_FLG_BASE))) | |
bb4d2ac2 L |
1920 | version_string = "Base"; |
1921 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1922 | version_string = | |
1923 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1924 | else | |
1925 | { | |
1926 | Elf_Internal_Verneed *t; | |
1927 | ||
7a815dd5 | 1928 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1929 | for (t = elf_tdata (abfd)->verref; |
1930 | t != NULL; | |
1931 | t = t->vn_nextref) | |
1932 | { | |
1933 | Elf_Internal_Vernaux *a; | |
1934 | ||
1935 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1936 | { | |
1937 | if (a->vna_other == vernum) | |
1938 | { | |
1939 | version_string = a->vna_nodename; | |
1940 | break; | |
1941 | } | |
1942 | } | |
1943 | } | |
1944 | } | |
1945 | } | |
1946 | return version_string; | |
1947 | } | |
1948 | ||
252b5132 RH |
1949 | /* Display ELF-specific fields of a symbol. */ |
1950 | ||
1951 | void | |
217aa764 AM |
1952 | bfd_elf_print_symbol (bfd *abfd, |
1953 | void *filep, | |
1954 | asymbol *symbol, | |
1955 | bfd_print_symbol_type how) | |
252b5132 | 1956 | { |
a50b1753 | 1957 | FILE *file = (FILE *) filep; |
252b5132 RH |
1958 | switch (how) |
1959 | { | |
1960 | case bfd_print_symbol_name: | |
1961 | fprintf (file, "%s", symbol->name); | |
1962 | break; | |
1963 | case bfd_print_symbol_more: | |
1964 | fprintf (file, "elf "); | |
60b89a18 | 1965 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1966 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1967 | break; |
1968 | case bfd_print_symbol_all: | |
1969 | { | |
4e8a9624 AM |
1970 | const char *section_name; |
1971 | const char *name = NULL; | |
9c5bfbb7 | 1972 | const struct elf_backend_data *bed; |
7a13edea | 1973 | unsigned char st_other; |
dbb410c3 | 1974 | bfd_vma val; |
bb4d2ac2 L |
1975 | const char *version_string; |
1976 | bfd_boolean hidden; | |
c044fabd | 1977 | |
252b5132 | 1978 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1979 | |
1980 | bed = get_elf_backend_data (abfd); | |
1981 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1982 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1983 | |
1984 | if (name == NULL) | |
1985 | { | |
7ee38065 | 1986 | name = symbol->name; |
217aa764 | 1987 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1988 | } |
1989 | ||
252b5132 RH |
1990 | fprintf (file, " %s\t", section_name); |
1991 | /* Print the "other" value for a symbol. For common symbols, | |
1992 | we've already printed the size; now print the alignment. | |
1993 | For other symbols, we have no specified alignment, and | |
1994 | we've printed the address; now print the size. */ | |
dcf6c779 | 1995 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1996 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1997 | else | |
1998 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1999 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
2000 | |
2001 | /* If we have version information, print it. */ | |
60bb06bc L |
2002 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
2003 | symbol, | |
2004 | &hidden); | |
bb4d2ac2 | 2005 | if (version_string) |
252b5132 | 2006 | { |
bb4d2ac2 | 2007 | if (!hidden) |
252b5132 RH |
2008 | fprintf (file, " %-11s", version_string); |
2009 | else | |
2010 | { | |
2011 | int i; | |
2012 | ||
2013 | fprintf (file, " (%s)", version_string); | |
2014 | for (i = 10 - strlen (version_string); i > 0; --i) | |
2015 | putc (' ', file); | |
2016 | } | |
2017 | } | |
2018 | ||
2019 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 2020 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 2021 | |
7a13edea NC |
2022 | switch (st_other) |
2023 | { | |
2024 | case 0: break; | |
2025 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
2026 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
2027 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
2028 | default: | |
2029 | /* Some other non-defined flags are also present, so print | |
2030 | everything hex. */ | |
2031 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
2032 | } | |
252b5132 | 2033 | |
587ff49e | 2034 | fprintf (file, " %s", name); |
252b5132 RH |
2035 | } |
2036 | break; | |
2037 | } | |
2038 | } | |
252b5132 RH |
2039 | \f |
2040 | /* ELF .o/exec file reading */ | |
2041 | ||
c044fabd | 2042 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2043 | |
b34976b6 | 2044 | bfd_boolean |
217aa764 | 2045 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2046 | { |
4fbb74a6 AM |
2047 | Elf_Internal_Shdr *hdr; |
2048 | Elf_Internal_Ehdr *ehdr; | |
2049 | const struct elf_backend_data *bed; | |
90937f86 | 2050 | const char *name; |
bf67003b NC |
2051 | bfd_boolean ret = TRUE; |
2052 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2053 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2054 | static unsigned int nesting = 0; |
252b5132 | 2055 | |
4fbb74a6 AM |
2056 | if (shindex >= elf_numsections (abfd)) |
2057 | return FALSE; | |
2058 | ||
bf67003b NC |
2059 | if (++ nesting > 3) |
2060 | { | |
2061 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2062 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2063 | loop. Detect this here, by refusing to load a section that we are |
2064 | already in the process of loading. We only trigger this test if | |
2065 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2066 | can expect to recurse at least once. |
2067 | ||
2068 | FIXME: It would be better if this array was attached to the bfd, | |
2069 | rather than being held in a static pointer. */ | |
2070 | ||
2071 | if (sections_being_created_abfd != abfd) | |
2072 | sections_being_created = NULL; | |
bf67003b NC |
2073 | if (sections_being_created == NULL) |
2074 | { | |
bf67003b | 2075 | sections_being_created = (bfd_boolean *) |
7a6e0d89 | 2076 | bfd_zalloc2 (abfd, elf_numsections (abfd), sizeof (bfd_boolean)); |
5a4b0ccc | 2077 | sections_being_created_abfd = abfd; |
bf67003b NC |
2078 | } |
2079 | if (sections_being_created [shindex]) | |
2080 | { | |
4eca0228 | 2081 | _bfd_error_handler |
871b3ab2 | 2082 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2083 | return FALSE; |
2084 | } | |
2085 | sections_being_created [shindex] = TRUE; | |
2086 | } | |
2087 | ||
4fbb74a6 AM |
2088 | hdr = elf_elfsections (abfd)[shindex]; |
2089 | ehdr = elf_elfheader (abfd); | |
2090 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2091 | hdr->sh_name); |
933d961a | 2092 | if (name == NULL) |
bf67003b | 2093 | goto fail; |
252b5132 | 2094 | |
4fbb74a6 | 2095 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2096 | switch (hdr->sh_type) |
2097 | { | |
2098 | case SHT_NULL: | |
2099 | /* Inactive section. Throw it away. */ | |
bf67003b | 2100 | goto success; |
252b5132 | 2101 | |
bf67003b NC |
2102 | case SHT_PROGBITS: /* Normal section with contents. */ |
2103 | case SHT_NOBITS: /* .bss section. */ | |
2104 | case SHT_HASH: /* .hash section. */ | |
2105 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2106 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2107 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2108 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2109 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2110 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2111 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2112 | goto success; | |
252b5132 | 2113 | |
797fc050 | 2114 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2115 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2116 | goto fail; |
2117 | ||
cfcac11d NC |
2118 | if (hdr->sh_link > elf_numsections (abfd)) |
2119 | { | |
caa83f8b | 2120 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2121 | field set to SHN_BEFORE or SHN_AFTER. */ |
2122 | switch (bfd_get_arch (abfd)) | |
2123 | { | |
caa83f8b | 2124 | case bfd_arch_i386: |
cfcac11d NC |
2125 | case bfd_arch_sparc: |
2126 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2127 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2128 | break; | |
2129 | /* Otherwise fall through. */ | |
2130 | default: | |
bf67003b | 2131 | goto fail; |
cfcac11d NC |
2132 | } |
2133 | } | |
2134 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2135 | goto fail; |
cfcac11d | 2136 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2137 | { |
2138 | Elf_Internal_Shdr *dynsymhdr; | |
2139 | ||
2140 | /* The shared libraries distributed with hpux11 have a bogus | |
2141 | sh_link field for the ".dynamic" section. Find the | |
2142 | string table for the ".dynsym" section instead. */ | |
2143 | if (elf_dynsymtab (abfd) != 0) | |
2144 | { | |
2145 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2146 | hdr->sh_link = dynsymhdr->sh_link; | |
2147 | } | |
2148 | else | |
2149 | { | |
2150 | unsigned int i, num_sec; | |
2151 | ||
2152 | num_sec = elf_numsections (abfd); | |
2153 | for (i = 1; i < num_sec; i++) | |
2154 | { | |
2155 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2156 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2157 | { | |
2158 | hdr->sh_link = dynsymhdr->sh_link; | |
2159 | break; | |
2160 | } | |
2161 | } | |
2162 | } | |
2163 | } | |
bf67003b | 2164 | goto success; |
797fc050 | 2165 | |
bf67003b | 2166 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2167 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2168 | goto success; |
252b5132 | 2169 | |
a50b2160 | 2170 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2171 | goto fail; |
2172 | ||
3337c1e5 | 2173 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2174 | { |
2175 | if (hdr->sh_size != 0) | |
bf67003b | 2176 | goto fail; |
eee3b786 AM |
2177 | /* Some assemblers erroneously set sh_info to one with a |
2178 | zero sh_size. ld sees this as a global symbol count | |
2179 | of (unsigned) -1. Fix it here. */ | |
2180 | hdr->sh_info = 0; | |
bf67003b | 2181 | goto success; |
eee3b786 | 2182 | } |
bf67003b | 2183 | |
16ad13ec NC |
2184 | /* PR 18854: A binary might contain more than one symbol table. |
2185 | Unusual, but possible. Warn, but continue. */ | |
2186 | if (elf_onesymtab (abfd) != 0) | |
2187 | { | |
4eca0228 | 2188 | _bfd_error_handler |
695344c0 | 2189 | /* xgettext:c-format */ |
871b3ab2 | 2190 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2191 | " - ignoring the table in section %u"), |
16ad13ec NC |
2192 | abfd, shindex); |
2193 | goto success; | |
2194 | } | |
252b5132 | 2195 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2196 | elf_symtab_hdr (abfd) = *hdr; |
2197 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2198 | abfd->flags |= HAS_SYMS; |
2199 | ||
2200 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2201 | SHF_ALLOC is set, and this is a shared object, then we also |
2202 | treat this section as a BFD section. We can not base the | |
2203 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2204 | set in a relocatable object file, which would confuse the | |
2205 | linker. */ | |
252b5132 RH |
2206 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2207 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2208 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2209 | shindex)) | |
bf67003b | 2210 | goto fail; |
252b5132 | 2211 | |
1b3a8575 AM |
2212 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2213 | can't read symbols without that section loaded as well. It | |
2214 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2215 | { |
2216 | elf_section_list * entry; | |
2217 | unsigned int i, num_sec; | |
1b3a8575 | 2218 | |
6a40cf0c NC |
2219 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2220 | if (entry->hdr.sh_link == shindex) | |
2221 | goto success; | |
2222 | ||
2223 | num_sec = elf_numsections (abfd); | |
2224 | for (i = shindex + 1; i < num_sec; i++) | |
2225 | { | |
2226 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2227 | ||
2228 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2229 | && hdr2->sh_link == shindex) | |
2230 | break; | |
2231 | } | |
2232 | ||
2233 | if (i == num_sec) | |
2234 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2235 | { |
2236 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2237 | |
1b3a8575 AM |
2238 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2239 | && hdr2->sh_link == shindex) | |
2240 | break; | |
2241 | } | |
6a40cf0c NC |
2242 | |
2243 | if (i != shindex) | |
2244 | ret = bfd_section_from_shdr (abfd, i); | |
2245 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2246 | goto success; | |
2247 | } | |
252b5132 | 2248 | |
bf67003b | 2249 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2250 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2251 | goto success; |
252b5132 | 2252 | |
a50b2160 | 2253 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2254 | goto fail; |
2255 | ||
eee3b786 AM |
2256 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2257 | { | |
2258 | if (hdr->sh_size != 0) | |
bf67003b NC |
2259 | goto fail; |
2260 | ||
eee3b786 AM |
2261 | /* Some linkers erroneously set sh_info to one with a |
2262 | zero sh_size. ld sees this as a global symbol count | |
2263 | of (unsigned) -1. Fix it here. */ | |
2264 | hdr->sh_info = 0; | |
bf67003b | 2265 | goto success; |
eee3b786 | 2266 | } |
bf67003b | 2267 | |
16ad13ec NC |
2268 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2269 | Unusual, but possible. Warn, but continue. */ | |
2270 | if (elf_dynsymtab (abfd) != 0) | |
2271 | { | |
4eca0228 | 2272 | _bfd_error_handler |
695344c0 | 2273 | /* xgettext:c-format */ |
871b3ab2 | 2274 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2275 | " - ignoring the table in section %u"), |
16ad13ec NC |
2276 | abfd, shindex); |
2277 | goto success; | |
2278 | } | |
252b5132 RH |
2279 | elf_dynsymtab (abfd) = shindex; |
2280 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2281 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2282 | abfd->flags |= HAS_SYMS; | |
2283 | ||
2284 | /* Besides being a symbol table, we also treat this as a regular | |
2285 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2286 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2287 | goto success; | |
252b5132 | 2288 | |
bf67003b | 2289 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2290 | { |
2291 | elf_section_list * entry; | |
9ad5cbcf | 2292 | |
6a40cf0c NC |
2293 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2294 | if (entry->ndx == shindex) | |
2295 | goto success; | |
07d6d2b8 | 2296 | |
7a6e0d89 | 2297 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2298 | if (entry == NULL) |
2299 | goto fail; | |
2300 | entry->ndx = shindex; | |
2301 | entry->hdr = * hdr; | |
2302 | entry->next = elf_symtab_shndx_list (abfd); | |
2303 | elf_symtab_shndx_list (abfd) = entry; | |
2304 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2305 | goto success; | |
2306 | } | |
9ad5cbcf | 2307 | |
bf67003b | 2308 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2309 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2310 | goto success; |
2311 | ||
252b5132 RH |
2312 | if (ehdr->e_shstrndx == shindex) |
2313 | { | |
2314 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2315 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2316 | goto success; |
252b5132 | 2317 | } |
bf67003b | 2318 | |
1b3a8575 AM |
2319 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2320 | { | |
2321 | symtab_strtab: | |
2322 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2323 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2324 | goto success; |
1b3a8575 | 2325 | } |
bf67003b | 2326 | |
1b3a8575 AM |
2327 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2328 | { | |
2329 | dynsymtab_strtab: | |
2330 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2331 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2332 | elf_elfsections (abfd)[shindex] = hdr; | |
2333 | /* We also treat this as a regular section, so that objcopy | |
2334 | can handle it. */ | |
bf67003b NC |
2335 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2336 | shindex); | |
2337 | goto success; | |
1b3a8575 | 2338 | } |
252b5132 | 2339 | |
1b3a8575 AM |
2340 | /* If the string table isn't one of the above, then treat it as a |
2341 | regular section. We need to scan all the headers to be sure, | |
2342 | just in case this strtab section appeared before the above. */ | |
2343 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2344 | { | |
2345 | unsigned int i, num_sec; | |
252b5132 | 2346 | |
1b3a8575 AM |
2347 | num_sec = elf_numsections (abfd); |
2348 | for (i = 1; i < num_sec; i++) | |
2349 | { | |
2350 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2351 | if (hdr2->sh_link == shindex) | |
2352 | { | |
933d961a JJ |
2353 | /* Prevent endless recursion on broken objects. */ |
2354 | if (i == shindex) | |
bf67003b | 2355 | goto fail; |
1b3a8575 | 2356 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2357 | goto fail; |
1b3a8575 AM |
2358 | if (elf_onesymtab (abfd) == i) |
2359 | goto symtab_strtab; | |
2360 | if (elf_dynsymtab (abfd) == i) | |
2361 | goto dynsymtab_strtab; | |
2362 | } | |
2363 | } | |
2364 | } | |
bf67003b NC |
2365 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2366 | goto success; | |
252b5132 RH |
2367 | |
2368 | case SHT_REL: | |
2369 | case SHT_RELA: | |
2370 | /* *These* do a lot of work -- but build no sections! */ | |
2371 | { | |
2372 | asection *target_sect; | |
d4730f92 | 2373 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2374 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2375 | struct bfd_elf_section_data *esdt; |
252b5132 | 2376 | |
aa2ca951 JJ |
2377 | if (hdr->sh_entsize |
2378 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2379 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2380 | goto fail; |
a50b2160 | 2381 | |
03ae5f59 | 2382 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2383 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2384 | { |
4eca0228 | 2385 | _bfd_error_handler |
695344c0 | 2386 | /* xgettext:c-format */ |
871b3ab2 | 2387 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2388 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2389 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2390 | shindex); | |
2391 | goto success; | |
03ae5f59 ILT |
2392 | } |
2393 | ||
252b5132 RH |
2394 | /* For some incomprehensible reason Oracle distributes |
2395 | libraries for Solaris in which some of the objects have | |
2396 | bogus sh_link fields. It would be nice if we could just | |
2397 | reject them, but, unfortunately, some people need to use | |
2398 | them. We scan through the section headers; if we find only | |
2399 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2400 | to it. I hope this doesn't break anything. |
2401 | ||
2402 | Don't do it on executable nor shared library. */ | |
2403 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2404 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2405 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2406 | { | |
9ad5cbcf | 2407 | unsigned int scan; |
252b5132 RH |
2408 | int found; |
2409 | ||
2410 | found = 0; | |
9ad5cbcf | 2411 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2412 | { |
2413 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2414 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2415 | { | |
2416 | if (found != 0) | |
2417 | { | |
2418 | found = 0; | |
2419 | break; | |
2420 | } | |
2421 | found = scan; | |
2422 | } | |
2423 | } | |
2424 | if (found != 0) | |
2425 | hdr->sh_link = found; | |
2426 | } | |
2427 | ||
2428 | /* Get the symbol table. */ | |
1b3a8575 AM |
2429 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2430 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2431 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2432 | goto fail; |
252b5132 | 2433 | |
a4bcd733 AM |
2434 | /* If this is an alloc section in an executable or shared |
2435 | library, or the reloc section does not use the main symbol | |
2436 | table we don't treat it as a reloc section. BFD can't | |
2437 | adequately represent such a section, so at least for now, | |
2438 | we don't try. We just present it as a normal section. We | |
2439 | also can't use it as a reloc section if it points to the | |
2440 | null section, an invalid section, another reloc section, or | |
2441 | its sh_link points to the null section. */ | |
2442 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2443 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2444 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2445 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2446 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2447 | || hdr->sh_info >= num_sec |
2448 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2449 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2450 | { |
2451 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2452 | shindex); | |
2453 | goto success; | |
2454 | } | |
252b5132 RH |
2455 | |
2456 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2457 | goto fail; |
2458 | ||
252b5132 RH |
2459 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2460 | if (target_sect == NULL) | |
bf67003b | 2461 | goto fail; |
252b5132 | 2462 | |
d4730f92 BS |
2463 | esdt = elf_section_data (target_sect); |
2464 | if (hdr->sh_type == SHT_RELA) | |
2465 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2466 | else |
d4730f92 BS |
2467 | p_hdr = &esdt->rel.hdr; |
2468 | ||
06614111 NC |
2469 | /* PR 17512: file: 0b4f81b7. */ |
2470 | if (*p_hdr != NULL) | |
2471 | goto fail; | |
ef53be89 | 2472 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2473 | if (hdr2 == NULL) |
bf67003b | 2474 | goto fail; |
252b5132 | 2475 | *hdr2 = *hdr; |
d4730f92 | 2476 | *p_hdr = hdr2; |
252b5132 | 2477 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2478 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2479 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2480 | target_sect->flags |= SEC_RELOC; |
2481 | target_sect->relocation = NULL; | |
2482 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2483 | /* In the section to which the relocations apply, mark whether |
2484 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2485 | if (hdr->sh_size != 0) |
d4730f92 BS |
2486 | { |
2487 | if (hdr->sh_type == SHT_RELA) | |
2488 | target_sect->use_rela_p = 1; | |
2489 | } | |
252b5132 | 2490 | abfd->flags |= HAS_RELOC; |
bf67003b | 2491 | goto success; |
252b5132 | 2492 | } |
252b5132 RH |
2493 | |
2494 | case SHT_GNU_verdef: | |
2495 | elf_dynverdef (abfd) = shindex; | |
2496 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2497 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2498 | goto success; | |
252b5132 RH |
2499 | |
2500 | case SHT_GNU_versym: | |
a50b2160 | 2501 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2502 | goto fail; |
2503 | ||
252b5132 RH |
2504 | elf_dynversym (abfd) = shindex; |
2505 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2506 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2507 | goto success; | |
252b5132 RH |
2508 | |
2509 | case SHT_GNU_verneed: | |
2510 | elf_dynverref (abfd) = shindex; | |
2511 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2512 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2513 | goto success; | |
252b5132 RH |
2514 | |
2515 | case SHT_SHLIB: | |
bf67003b | 2516 | goto success; |
252b5132 | 2517 | |
dbb410c3 | 2518 | case SHT_GROUP: |
44534af3 | 2519 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2520 | goto fail; |
2521 | ||
6dc132d9 | 2522 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2523 | goto fail; |
2524 | ||
bf67003b | 2525 | goto success; |
dbb410c3 | 2526 | |
252b5132 | 2527 | default: |
104d59d1 JM |
2528 | /* Possibly an attributes section. */ |
2529 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2530 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2531 | { | |
2532 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2533 | goto fail; |
104d59d1 | 2534 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2535 | goto success; |
104d59d1 JM |
2536 | } |
2537 | ||
252b5132 | 2538 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2539 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2540 | goto success; |
3eb70a79 L |
2541 | |
2542 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2543 | { | |
2544 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2545 | /* FIXME: How to properly handle allocated section reserved | |
2546 | for applications? */ | |
4eca0228 | 2547 | _bfd_error_handler |
695344c0 | 2548 | /* xgettext:c-format */ |
871b3ab2 | 2549 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2550 | abfd, hdr->sh_type, name); |
3eb70a79 | 2551 | else |
bf67003b NC |
2552 | { |
2553 | /* Allow sections reserved for applications. */ | |
2554 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2555 | shindex); | |
2556 | goto success; | |
2557 | } | |
3eb70a79 L |
2558 | } |
2559 | else if (hdr->sh_type >= SHT_LOPROC | |
2560 | && hdr->sh_type <= SHT_HIPROC) | |
2561 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2562 | _bfd_error_handler |
695344c0 | 2563 | /* xgettext:c-format */ |
871b3ab2 | 2564 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2565 | abfd, hdr->sh_type, name); |
3eb70a79 | 2566 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2567 | { |
2568 | /* Unrecognised OS-specific sections. */ | |
2569 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2570 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2571 | required to correctly process the section and the file should |
ff15b240 | 2572 | be rejected with an error message. */ |
4eca0228 | 2573 | _bfd_error_handler |
695344c0 | 2574 | /* xgettext:c-format */ |
871b3ab2 | 2575 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2576 | abfd, hdr->sh_type, name); |
ff15b240 | 2577 | else |
bf67003b NC |
2578 | { |
2579 | /* Otherwise it should be processed. */ | |
2580 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2581 | goto success; | |
2582 | } | |
ff15b240 | 2583 | } |
3eb70a79 L |
2584 | else |
2585 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2586 | _bfd_error_handler |
695344c0 | 2587 | /* xgettext:c-format */ |
871b3ab2 | 2588 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2589 | abfd, hdr->sh_type, name); |
3eb70a79 | 2590 | |
bf67003b | 2591 | goto fail; |
252b5132 RH |
2592 | } |
2593 | ||
bf67003b NC |
2594 | fail: |
2595 | ret = FALSE; | |
2596 | success: | |
e5b470e2 | 2597 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2598 | sections_being_created [shindex] = FALSE; |
2599 | if (-- nesting == 0) | |
5a4b0ccc NC |
2600 | { |
2601 | sections_being_created = NULL; | |
2602 | sections_being_created_abfd = abfd; | |
2603 | } | |
bf67003b | 2604 | return ret; |
252b5132 RH |
2605 | } |
2606 | ||
87d72d41 | 2607 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2608 | |
87d72d41 AM |
2609 | Elf_Internal_Sym * |
2610 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2611 | bfd *abfd, | |
2612 | unsigned long r_symndx) | |
ec338859 | 2613 | { |
ec338859 AM |
2614 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2615 | ||
a5d1b3b5 AM |
2616 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2617 | { | |
2618 | Elf_Internal_Shdr *symtab_hdr; | |
2619 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2620 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2621 | |
a5d1b3b5 AM |
2622 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2623 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2624 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2625 | return NULL; |
9ad5cbcf | 2626 | |
a5d1b3b5 AM |
2627 | if (cache->abfd != abfd) |
2628 | { | |
2629 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2630 | cache->abfd = abfd; | |
2631 | } | |
2632 | cache->indx[ent] = r_symndx; | |
ec338859 | 2633 | } |
a5d1b3b5 | 2634 | |
87d72d41 | 2635 | return &cache->sym[ent]; |
ec338859 AM |
2636 | } |
2637 | ||
252b5132 RH |
2638 | /* Given an ELF section number, retrieve the corresponding BFD |
2639 | section. */ | |
2640 | ||
2641 | asection * | |
91d6fa6a | 2642 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2643 | { |
91d6fa6a | 2644 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2645 | return NULL; |
91d6fa6a | 2646 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2647 | } |
2648 | ||
b35d266b | 2649 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2650 | { |
0112cd26 | 2651 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2652 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2653 | }; |
2654 | ||
b35d266b | 2655 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2656 | { |
0112cd26 | 2657 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2658 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2659 | }; |
2660 | ||
b35d266b | 2661 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2662 | { |
07d6d2b8 AM |
2663 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2664 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2665 | /* There are more DWARF sections than these, but they needn't be added here |
2666 | unless you have to cope with broken compilers that don't emit section | |
2667 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2668 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2669 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2670 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2671 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2672 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2673 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2674 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2675 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2676 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2677 | }; |
2678 | ||
b35d266b | 2679 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2680 | { |
07d6d2b8 | 2681 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2682 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2683 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2684 | }; |
2685 | ||
b35d266b | 2686 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2687 | { |
0112cd26 | 2688 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2689 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2690 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2691 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2692 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2693 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2694 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2695 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2696 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2697 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2698 | }; |
2699 | ||
b35d266b | 2700 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2701 | { |
07d6d2b8 AM |
2702 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2703 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2704 | }; |
2705 | ||
b35d266b | 2706 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2707 | { |
07d6d2b8 | 2708 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2709 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2710 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2711 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2712 | }; |
2713 | ||
b35d266b | 2714 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2715 | { |
0112cd26 | 2716 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2717 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2718 | }; |
2719 | ||
b35d266b | 2720 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2721 | { |
0112cd26 | 2722 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2723 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2724 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2725 | }; |
2726 | ||
b35d266b | 2727 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2728 | { |
6f9dbcd4 | 2729 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2730 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2731 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2732 | }; |
2733 | ||
b35d266b | 2734 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2735 | { |
0112cd26 NC |
2736 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2737 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2738 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2739 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2740 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2741 | }; |
2742 | ||
b35d266b | 2743 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2744 | { |
0112cd26 NC |
2745 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2746 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2747 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2748 | /* See struct bfd_elf_special_section declaration for the semantics of |
2749 | this special case where .prefix_length != strlen (.prefix). */ | |
2750 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2751 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2752 | }; |
2753 | ||
b35d266b | 2754 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2755 | { |
07d6d2b8 AM |
2756 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2757 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2758 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2759 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2760 | }; |
2761 | ||
1b315056 CS |
2762 | static const struct bfd_elf_special_section special_sections_z[] = |
2763 | { | |
07d6d2b8 AM |
2764 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2765 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2766 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2767 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2768 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2769 | }; |
2770 | ||
e4c93b56 | 2771 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2772 | { |
7f4d3958 | 2773 | special_sections_b, /* 'b' */ |
98ece1b3 | 2774 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2775 | special_sections_d, /* 'd' */ |
2776 | NULL, /* 'e' */ | |
2777 | special_sections_f, /* 'f' */ | |
2778 | special_sections_g, /* 'g' */ | |
2779 | special_sections_h, /* 'h' */ | |
2780 | special_sections_i, /* 'i' */ | |
2781 | NULL, /* 'j' */ | |
2782 | NULL, /* 'k' */ | |
2783 | special_sections_l, /* 'l' */ | |
2784 | NULL, /* 'm' */ | |
2785 | special_sections_n, /* 'n' */ | |
2786 | NULL, /* 'o' */ | |
2787 | special_sections_p, /* 'p' */ | |
2788 | NULL, /* 'q' */ | |
2789 | special_sections_r, /* 'r' */ | |
2790 | special_sections_s, /* 's' */ | |
2791 | special_sections_t, /* 't' */ | |
1b315056 CS |
2792 | NULL, /* 'u' */ |
2793 | NULL, /* 'v' */ | |
2794 | NULL, /* 'w' */ | |
2795 | NULL, /* 'x' */ | |
2796 | NULL, /* 'y' */ | |
2797 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2798 | }; |
2799 | ||
551b43fd AM |
2800 | const struct bfd_elf_special_section * |
2801 | _bfd_elf_get_special_section (const char *name, | |
2802 | const struct bfd_elf_special_section *spec, | |
2803 | unsigned int rela) | |
2f89ff8d L |
2804 | { |
2805 | int i; | |
7f4d3958 | 2806 | int len; |
7f4d3958 | 2807 | |
551b43fd | 2808 | len = strlen (name); |
7f4d3958 | 2809 | |
551b43fd | 2810 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2811 | { |
2812 | int suffix_len; | |
551b43fd | 2813 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2814 | |
2815 | if (len < prefix_len) | |
2816 | continue; | |
551b43fd | 2817 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2818 | continue; |
2819 | ||
551b43fd | 2820 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2821 | if (suffix_len <= 0) |
2822 | { | |
2823 | if (name[prefix_len] != 0) | |
2824 | { | |
2825 | if (suffix_len == 0) | |
2826 | continue; | |
2827 | if (name[prefix_len] != '.' | |
2828 | && (suffix_len == -2 | |
551b43fd | 2829 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2830 | continue; |
2831 | } | |
2832 | } | |
2833 | else | |
2834 | { | |
2835 | if (len < prefix_len + suffix_len) | |
2836 | continue; | |
2837 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2838 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2839 | suffix_len) != 0) |
2840 | continue; | |
2841 | } | |
551b43fd | 2842 | return &spec[i]; |
7dcb9820 | 2843 | } |
2f89ff8d L |
2844 | |
2845 | return NULL; | |
2846 | } | |
2847 | ||
7dcb9820 | 2848 | const struct bfd_elf_special_section * |
29ef7005 | 2849 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2850 | { |
551b43fd AM |
2851 | int i; |
2852 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2853 | const struct elf_backend_data *bed; |
2f89ff8d L |
2854 | |
2855 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2856 | if (sec->name == NULL) |
2857 | return NULL; | |
2f89ff8d | 2858 | |
29ef7005 L |
2859 | bed = get_elf_backend_data (abfd); |
2860 | spec = bed->special_sections; | |
2861 | if (spec) | |
2862 | { | |
2863 | spec = _bfd_elf_get_special_section (sec->name, | |
2864 | bed->special_sections, | |
2865 | sec->use_rela_p); | |
2866 | if (spec != NULL) | |
2867 | return spec; | |
2868 | } | |
2869 | ||
551b43fd AM |
2870 | if (sec->name[0] != '.') |
2871 | return NULL; | |
2f89ff8d | 2872 | |
551b43fd | 2873 | i = sec->name[1] - 'b'; |
1b315056 | 2874 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2875 | return NULL; |
2876 | ||
2877 | spec = special_sections[i]; | |
2f89ff8d | 2878 | |
551b43fd AM |
2879 | if (spec == NULL) |
2880 | return NULL; | |
2881 | ||
2882 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2883 | } |
2884 | ||
b34976b6 | 2885 | bfd_boolean |
217aa764 | 2886 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2887 | { |
2888 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2889 | const struct elf_backend_data *bed; |
7dcb9820 | 2890 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2891 | |
f0abc2a1 AM |
2892 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2893 | if (sdata == NULL) | |
2894 | { | |
a50b1753 | 2895 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2896 | sizeof (*sdata)); |
f0abc2a1 AM |
2897 | if (sdata == NULL) |
2898 | return FALSE; | |
217aa764 | 2899 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2900 | } |
bf572ba0 | 2901 | |
551b43fd AM |
2902 | /* Indicate whether or not this section should use RELA relocations. */ |
2903 | bed = get_elf_backend_data (abfd); | |
2904 | sec->use_rela_p = bed->default_use_rela_p; | |
2905 | ||
e843e0f8 L |
2906 | /* When we read a file, we don't need to set ELF section type and |
2907 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2908 | anyway. We will set ELF section type and flags for all linker | |
2909 | created sections. If user specifies BFD section flags, we will | |
2910 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2911 | elf_fake_sections. Special handling for .init_array/.fini_array |
2912 | output sections since they may contain .ctors/.dtors input | |
2913 | sections. We don't want _bfd_elf_init_private_section_data to | |
2914 | copy ELF section type from .ctors/.dtors input sections. */ | |
2915 | if (abfd->direction != read_direction | |
3496cb2a | 2916 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2917 | { |
551b43fd | 2918 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2919 | if (ssect != NULL |
2920 | && (!sec->flags | |
2921 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2922 | || ssect->type == SHT_INIT_ARRAY | |
2923 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2924 | { |
2925 | elf_section_type (sec) = ssect->type; | |
2926 | elf_section_flags (sec) = ssect->attr; | |
2927 | } | |
2f89ff8d L |
2928 | } |
2929 | ||
f592407e | 2930 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2931 | } |
2932 | ||
2933 | /* Create a new bfd section from an ELF program header. | |
2934 | ||
2935 | Since program segments have no names, we generate a synthetic name | |
2936 | of the form segment<NUM>, where NUM is generally the index in the | |
2937 | program header table. For segments that are split (see below) we | |
2938 | generate the names segment<NUM>a and segment<NUM>b. | |
2939 | ||
2940 | Note that some program segments may have a file size that is different than | |
2941 | (less than) the memory size. All this means is that at execution the | |
2942 | system must allocate the amount of memory specified by the memory size, | |
2943 | but only initialize it with the first "file size" bytes read from the | |
2944 | file. This would occur for example, with program segments consisting | |
2945 | of combined data+bss. | |
2946 | ||
2947 | To handle the above situation, this routine generates TWO bfd sections | |
2948 | for the single program segment. The first has the length specified by | |
2949 | the file size of the segment, and the second has the length specified | |
2950 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2951 | into its initialized and uninitialized parts. |
252b5132 RH |
2952 | |
2953 | */ | |
2954 | ||
b34976b6 | 2955 | bfd_boolean |
217aa764 AM |
2956 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2957 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2958 | int hdr_index, |
a50b1753 | 2959 | const char *type_name) |
252b5132 RH |
2960 | { |
2961 | asection *newsect; | |
2962 | char *name; | |
2963 | char namebuf[64]; | |
d4c88bbb | 2964 | size_t len; |
252b5132 RH |
2965 | int split; |
2966 | ||
2967 | split = ((hdr->p_memsz > 0) | |
2968 | && (hdr->p_filesz > 0) | |
2969 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2970 | |
2971 | if (hdr->p_filesz > 0) | |
252b5132 | 2972 | { |
91d6fa6a | 2973 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2974 | len = strlen (namebuf) + 1; |
a50b1753 | 2975 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2976 | if (!name) |
2977 | return FALSE; | |
2978 | memcpy (name, namebuf, len); | |
2979 | newsect = bfd_make_section (abfd, name); | |
2980 | if (newsect == NULL) | |
2981 | return FALSE; | |
2982 | newsect->vma = hdr->p_vaddr; | |
2983 | newsect->lma = hdr->p_paddr; | |
2984 | newsect->size = hdr->p_filesz; | |
2985 | newsect->filepos = hdr->p_offset; | |
2986 | newsect->flags |= SEC_HAS_CONTENTS; | |
2987 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2988 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2989 | { |
d5191d0c AM |
2990 | newsect->flags |= SEC_ALLOC; |
2991 | newsect->flags |= SEC_LOAD; | |
2992 | if (hdr->p_flags & PF_X) | |
2993 | { | |
2994 | /* FIXME: all we known is that it has execute PERMISSION, | |
2995 | may be data. */ | |
2996 | newsect->flags |= SEC_CODE; | |
2997 | } | |
2998 | } | |
2999 | if (!(hdr->p_flags & PF_W)) | |
3000 | { | |
3001 | newsect->flags |= SEC_READONLY; | |
252b5132 | 3002 | } |
252b5132 RH |
3003 | } |
3004 | ||
d5191d0c | 3005 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 3006 | { |
d5191d0c AM |
3007 | bfd_vma align; |
3008 | ||
91d6fa6a | 3009 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 3010 | len = strlen (namebuf) + 1; |
a50b1753 | 3011 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 3012 | if (!name) |
b34976b6 | 3013 | return FALSE; |
d4c88bbb | 3014 | memcpy (name, namebuf, len); |
252b5132 RH |
3015 | newsect = bfd_make_section (abfd, name); |
3016 | if (newsect == NULL) | |
b34976b6 | 3017 | return FALSE; |
252b5132 RH |
3018 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
3019 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 3020 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
3021 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
3022 | align = newsect->vma & -newsect->vma; | |
3023 | if (align == 0 || align > hdr->p_align) | |
3024 | align = hdr->p_align; | |
3025 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
3026 | if (hdr->p_type == PT_LOAD) |
3027 | { | |
d5191d0c AM |
3028 | /* Hack for gdb. Segments that have not been modified do |
3029 | not have their contents written to a core file, on the | |
3030 | assumption that a debugger can find the contents in the | |
3031 | executable. We flag this case by setting the fake | |
3032 | section size to zero. Note that "real" bss sections will | |
3033 | always have their contents dumped to the core file. */ | |
3034 | if (bfd_get_format (abfd) == bfd_core) | |
3035 | newsect->size = 0; | |
252b5132 RH |
3036 | newsect->flags |= SEC_ALLOC; |
3037 | if (hdr->p_flags & PF_X) | |
3038 | newsect->flags |= SEC_CODE; | |
3039 | } | |
3040 | if (!(hdr->p_flags & PF_W)) | |
3041 | newsect->flags |= SEC_READONLY; | |
3042 | } | |
3043 | ||
b34976b6 | 3044 | return TRUE; |
252b5132 RH |
3045 | } |
3046 | ||
b34976b6 | 3047 | bfd_boolean |
91d6fa6a | 3048 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3049 | { |
9c5bfbb7 | 3050 | const struct elf_backend_data *bed; |
20cfcaae NC |
3051 | |
3052 | switch (hdr->p_type) | |
3053 | { | |
3054 | case PT_NULL: | |
91d6fa6a | 3055 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3056 | |
3057 | case PT_LOAD: | |
91d6fa6a | 3058 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
3059 | |
3060 | case PT_DYNAMIC: | |
91d6fa6a | 3061 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3062 | |
3063 | case PT_INTERP: | |
91d6fa6a | 3064 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3065 | |
3066 | case PT_NOTE: | |
91d6fa6a | 3067 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3068 | return FALSE; |
276da9b3 L |
3069 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3070 | hdr->p_align)) | |
b34976b6 AM |
3071 | return FALSE; |
3072 | return TRUE; | |
20cfcaae NC |
3073 | |
3074 | case PT_SHLIB: | |
91d6fa6a | 3075 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3076 | |
3077 | case PT_PHDR: | |
91d6fa6a | 3078 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3079 | |
811072d8 | 3080 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3081 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3082 | "eh_frame_hdr"); |
3083 | ||
2b05f1b7 | 3084 | case PT_GNU_STACK: |
91d6fa6a | 3085 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3086 | |
8c37241b | 3087 | case PT_GNU_RELRO: |
91d6fa6a | 3088 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3089 | |
20cfcaae | 3090 | default: |
8c1acd09 | 3091 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3092 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3093 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3094 | } |
3095 | } | |
3096 | ||
d4730f92 BS |
3097 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3098 | REL or RELA. */ | |
3099 | ||
3100 | Elf_Internal_Shdr * | |
3101 | _bfd_elf_single_rel_hdr (asection *sec) | |
3102 | { | |
3103 | if (elf_section_data (sec)->rel.hdr) | |
3104 | { | |
3105 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3106 | return elf_section_data (sec)->rel.hdr; | |
3107 | } | |
3108 | else | |
3109 | return elf_section_data (sec)->rela.hdr; | |
3110 | } | |
3111 | ||
3e19fb8f L |
3112 | static bfd_boolean |
3113 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3114 | Elf_Internal_Shdr *rel_hdr, | |
3115 | const char *sec_name, | |
3116 | bfd_boolean use_rela_p) | |
3117 | { | |
3118 | char *name = (char *) bfd_alloc (abfd, | |
3119 | sizeof ".rela" + strlen (sec_name)); | |
3120 | if (name == NULL) | |
3121 | return FALSE; | |
3122 | ||
3123 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3124 | rel_hdr->sh_name = | |
3125 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3126 | FALSE); | |
3127 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3128 | return FALSE; | |
3129 | ||
3130 | return TRUE; | |
3131 | } | |
3132 | ||
d4730f92 BS |
3133 | /* Allocate and initialize a section-header for a new reloc section, |
3134 | containing relocations against ASECT. It is stored in RELDATA. If | |
3135 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3136 | relocations. */ | |
23bc299b | 3137 | |
5d13b3b3 | 3138 | static bfd_boolean |
217aa764 | 3139 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3140 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3141 | const char *sec_name, |
3e19fb8f L |
3142 | bfd_boolean use_rela_p, |
3143 | bfd_boolean delay_st_name_p) | |
23bc299b | 3144 | { |
d4730f92 | 3145 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3146 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3147 | |
d4730f92 | 3148 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3149 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3150 | reldata->hdr = rel_hdr; |
23bc299b | 3151 | |
3e19fb8f L |
3152 | if (delay_st_name_p) |
3153 | rel_hdr->sh_name = (unsigned int) -1; | |
3154 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3155 | use_rela_p)) | |
b34976b6 | 3156 | return FALSE; |
23bc299b MM |
3157 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3158 | rel_hdr->sh_entsize = (use_rela_p | |
3159 | ? bed->s->sizeof_rela | |
3160 | : bed->s->sizeof_rel); | |
72de5009 | 3161 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3162 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3163 | rel_hdr->sh_addr = 0; |
3164 | rel_hdr->sh_size = 0; | |
3165 | rel_hdr->sh_offset = 0; | |
3166 | ||
b34976b6 | 3167 | return TRUE; |
23bc299b MM |
3168 | } |
3169 | ||
94be91de JB |
3170 | /* Return the default section type based on the passed in section flags. */ |
3171 | ||
3172 | int | |
3173 | bfd_elf_get_default_section_type (flagword flags) | |
3174 | { | |
0e41bebb | 3175 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3176 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3177 | return SHT_NOBITS; |
3178 | return SHT_PROGBITS; | |
3179 | } | |
3180 | ||
d4730f92 BS |
3181 | struct fake_section_arg |
3182 | { | |
3183 | struct bfd_link_info *link_info; | |
3184 | bfd_boolean failed; | |
3185 | }; | |
3186 | ||
252b5132 RH |
3187 | /* Set up an ELF internal section header for a section. */ |
3188 | ||
252b5132 | 3189 | static void |
d4730f92 | 3190 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3191 | { |
d4730f92 | 3192 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3193 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3194 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3195 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3196 | unsigned int sh_type; |
0ce398f1 | 3197 | const char *name = asect->name; |
3e19fb8f | 3198 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3199 | |
d4730f92 | 3200 | if (arg->failed) |
252b5132 RH |
3201 | { |
3202 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3203 | loop. */ |
252b5132 RH |
3204 | return; |
3205 | } | |
3206 | ||
d4730f92 | 3207 | this_hdr = &esd->this_hdr; |
252b5132 | 3208 | |
f6fe1ccd | 3209 | if (arg->link_info) |
0ce398f1 | 3210 | { |
f6fe1ccd L |
3211 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3212 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3213 | && (asect->flags & SEC_DEBUGGING) | |
3214 | && name[1] == 'd' | |
3215 | && name[6] == '_') | |
3216 | { | |
3217 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3218 | compressed. */ | |
3219 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3220 | |
dd905818 | 3221 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3222 | name to section name section after it is compressed in |
3223 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3224 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3225 | } |
3226 | } | |
3227 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3228 | { | |
3229 | /* objcopy: rename output DWARF debug section. */ | |
3230 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3231 | { | |
3232 | /* When we decompress or compress with SHF_COMPRESSED, | |
3233 | convert section name from .zdebug_* to .debug_* if | |
3234 | needed. */ | |
3235 | if (name[1] == 'z') | |
3236 | { | |
3237 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3238 | if (new_name == NULL) | |
3239 | { | |
3240 | arg->failed = TRUE; | |
3241 | return; | |
3242 | } | |
3243 | name = new_name; | |
3244 | } | |
3245 | } | |
3246 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3247 | { |
f6fe1ccd L |
3248 | /* PR binutils/18087: Compression does not always make a |
3249 | section smaller. So only rename the section when | |
3250 | compression has actually taken place. If input section | |
3251 | name is .zdebug_*, we should never compress it again. */ | |
3252 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3253 | if (new_name == NULL) |
3254 | { | |
3255 | arg->failed = TRUE; | |
3256 | return; | |
3257 | } | |
f6fe1ccd L |
3258 | BFD_ASSERT (name[1] != 'z'); |
3259 | name = new_name; | |
0ce398f1 L |
3260 | } |
3261 | } | |
3262 | ||
3e19fb8f L |
3263 | if (delay_st_name_p) |
3264 | this_hdr->sh_name = (unsigned int) -1; | |
3265 | else | |
252b5132 | 3266 | { |
3e19fb8f L |
3267 | this_hdr->sh_name |
3268 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3269 | name, FALSE); | |
3270 | if (this_hdr->sh_name == (unsigned int) -1) | |
3271 | { | |
3272 | arg->failed = TRUE; | |
3273 | return; | |
3274 | } | |
252b5132 RH |
3275 | } |
3276 | ||
a4d8e49b | 3277 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3278 | |
3279 | if ((asect->flags & SEC_ALLOC) != 0 | |
3280 | || asect->user_set_vma) | |
3281 | this_hdr->sh_addr = asect->vma; | |
3282 | else | |
3283 | this_hdr->sh_addr = 0; | |
3284 | ||
3285 | this_hdr->sh_offset = 0; | |
eea6121a | 3286 | this_hdr->sh_size = asect->size; |
252b5132 | 3287 | this_hdr->sh_link = 0; |
c86934ce NC |
3288 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3289 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3290 | { | |
4eca0228 | 3291 | _bfd_error_handler |
695344c0 | 3292 | /* xgettext:c-format */ |
9793eb77 | 3293 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3294 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3295 | arg->failed = TRUE; |
3296 | return; | |
3297 | } | |
72de5009 | 3298 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3299 | /* The sh_entsize and sh_info fields may have been set already by |
3300 | copy_private_section_data. */ | |
3301 | ||
3302 | this_hdr->bfd_section = asect; | |
3303 | this_hdr->contents = NULL; | |
3304 | ||
3cddba1e L |
3305 | /* If the section type is unspecified, we set it based on |
3306 | asect->flags. */ | |
98ece1b3 AM |
3307 | if ((asect->flags & SEC_GROUP) != 0) |
3308 | sh_type = SHT_GROUP; | |
98ece1b3 | 3309 | else |
94be91de | 3310 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3311 | |
3cddba1e | 3312 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3313 | this_hdr->sh_type = sh_type; |
3314 | else if (this_hdr->sh_type == SHT_NOBITS | |
3315 | && sh_type == SHT_PROGBITS | |
3316 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3317 | { |
98ece1b3 AM |
3318 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3319 | allow the link to proceed. This can happen when users link | |
3320 | non-bss input sections to bss output sections, or emit data | |
3321 | to a bss output section via a linker script. */ | |
4eca0228 | 3322 | _bfd_error_handler |
871b3ab2 | 3323 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3324 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3325 | } |
3326 | ||
2f89ff8d | 3327 | switch (this_hdr->sh_type) |
252b5132 | 3328 | { |
2f89ff8d | 3329 | default: |
2f89ff8d L |
3330 | break; |
3331 | ||
3332 | case SHT_STRTAB: | |
2f89ff8d L |
3333 | case SHT_NOTE: |
3334 | case SHT_NOBITS: | |
3335 | case SHT_PROGBITS: | |
3336 | break; | |
606851fb AM |
3337 | |
3338 | case SHT_INIT_ARRAY: | |
3339 | case SHT_FINI_ARRAY: | |
3340 | case SHT_PREINIT_ARRAY: | |
3341 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3342 | break; | |
2f89ff8d L |
3343 | |
3344 | case SHT_HASH: | |
c7ac6ff8 | 3345 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3346 | break; |
5de3bf90 | 3347 | |
2f89ff8d | 3348 | case SHT_DYNSYM: |
252b5132 | 3349 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3350 | break; |
3351 | ||
3352 | case SHT_DYNAMIC: | |
252b5132 | 3353 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3354 | break; |
3355 | ||
3356 | case SHT_RELA: | |
3357 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3358 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3359 | break; | |
3360 | ||
3361 | case SHT_REL: | |
3362 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3363 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3364 | break; | |
3365 | ||
3366 | case SHT_GNU_versym: | |
252b5132 | 3367 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3368 | break; |
3369 | ||
3370 | case SHT_GNU_verdef: | |
252b5132 RH |
3371 | this_hdr->sh_entsize = 0; |
3372 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3373 | cverdefs. The linker will set cverdefs, but sh_info will be |
3374 | zero. */ | |
252b5132 RH |
3375 | if (this_hdr->sh_info == 0) |
3376 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3377 | else | |
3378 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3379 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3380 | break; |
3381 | ||
3382 | case SHT_GNU_verneed: | |
252b5132 RH |
3383 | this_hdr->sh_entsize = 0; |
3384 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3385 | cverrefs. The linker will set cverrefs, but sh_info will be |
3386 | zero. */ | |
252b5132 RH |
3387 | if (this_hdr->sh_info == 0) |
3388 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3389 | else | |
3390 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3391 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3392 | break; |
3393 | ||
3394 | case SHT_GROUP: | |
1783205a | 3395 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3396 | break; |
fdc90cb4 JJ |
3397 | |
3398 | case SHT_GNU_HASH: | |
3399 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3400 | break; | |
dbb410c3 | 3401 | } |
252b5132 RH |
3402 | |
3403 | if ((asect->flags & SEC_ALLOC) != 0) | |
3404 | this_hdr->sh_flags |= SHF_ALLOC; | |
3405 | if ((asect->flags & SEC_READONLY) == 0) | |
3406 | this_hdr->sh_flags |= SHF_WRITE; | |
3407 | if ((asect->flags & SEC_CODE) != 0) | |
3408 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3409 | if ((asect->flags & SEC_MERGE) != 0) |
3410 | { | |
3411 | this_hdr->sh_flags |= SHF_MERGE; | |
3412 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3413 | } |
84865015 NC |
3414 | if ((asect->flags & SEC_STRINGS) != 0) |
3415 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3416 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3417 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3418 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3419 | { |
3420 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3421 | if (asect->size == 0 |
3422 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3423 | { |
3a800eb9 | 3424 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3425 | |
704afa60 | 3426 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3427 | if (o != NULL) |
3428 | { | |
704afa60 | 3429 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3430 | if (this_hdr->sh_size != 0) |
3431 | this_hdr->sh_type = SHT_NOBITS; | |
3432 | } | |
704afa60 JJ |
3433 | } |
3434 | } | |
18ae9cc1 L |
3435 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3436 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3437 | |
d4730f92 BS |
3438 | /* If the section has relocs, set up a section header for the |
3439 | SHT_REL[A] section. If two relocation sections are required for | |
3440 | this section, it is up to the processor-specific back-end to | |
3441 | create the other. */ | |
3442 | if ((asect->flags & SEC_RELOC) != 0) | |
3443 | { | |
3444 | /* When doing a relocatable link, create both REL and RELA sections if | |
3445 | needed. */ | |
3446 | if (arg->link_info | |
3447 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3448 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3449 | && (bfd_link_relocatable (arg->link_info) |
3450 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3451 | { |
3452 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3453 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3454 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3455 | { |
3456 | arg->failed = TRUE; | |
3457 | return; | |
3458 | } | |
3459 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3460 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3461 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3462 | { |
3463 | arg->failed = TRUE; | |
3464 | return; | |
3465 | } | |
3466 | } | |
3467 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3468 | (asect->use_rela_p | |
3469 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3470 | name, |
3e19fb8f L |
3471 | asect->use_rela_p, |
3472 | delay_st_name_p)) | |
db4677b8 | 3473 | { |
d4730f92 | 3474 | arg->failed = TRUE; |
db4677b8 AM |
3475 | return; |
3476 | } | |
d4730f92 BS |
3477 | } |
3478 | ||
252b5132 | 3479 | /* Check for processor-specific section types. */ |
0414f35b | 3480 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3481 | if (bed->elf_backend_fake_sections |
3482 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3483 | { |
3484 | arg->failed = TRUE; | |
3485 | return; | |
3486 | } | |
252b5132 | 3487 | |
42bb2e33 | 3488 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3489 | { |
3490 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3491 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3492 | this_hdr->sh_type = sh_type; |
3493 | } | |
252b5132 RH |
3494 | } |
3495 | ||
bcacc0f5 AM |
3496 | /* Fill in the contents of a SHT_GROUP section. Called from |
3497 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3498 | when ELF targets use the generic linker, ld. Called for ld -r | |
3499 | from bfd_elf_final_link. */ | |
dbb410c3 | 3500 | |
1126897b | 3501 | void |
217aa764 | 3502 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3503 | { |
a50b1753 | 3504 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3505 | asection *elt, *first; |
dbb410c3 | 3506 | unsigned char *loc; |
b34976b6 | 3507 | bfd_boolean gas; |
dbb410c3 | 3508 | |
7e4111ad L |
3509 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3510 | elfxx-ia64.c. */ | |
ce5aecf8 AM |
3511 | if ((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP |
3512 | || sec->size == 0 | |
dbb410c3 AM |
3513 | || *failedptr) |
3514 | return; | |
3515 | ||
bcacc0f5 AM |
3516 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3517 | { | |
3518 | unsigned long symindx = 0; | |
3519 | ||
3520 | /* elf_group_id will have been set up by objcopy and the | |
3521 | generic linker. */ | |
3522 | if (elf_group_id (sec) != NULL) | |
3523 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3524 | |
bcacc0f5 AM |
3525 | if (symindx == 0) |
3526 | { | |
3527 | /* If called from the assembler, swap_out_syms will have set up | |
3528 | elf_section_syms. */ | |
3529 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3530 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3531 | } | |
3532 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3533 | } | |
3534 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3535 | { |
bcacc0f5 AM |
3536 | /* The ELF backend linker sets sh_info to -2 when the group |
3537 | signature symbol is global, and thus the index can't be | |
3538 | set until all local symbols are output. */ | |
53720c49 AM |
3539 | asection *igroup; |
3540 | struct bfd_elf_section_data *sec_data; | |
3541 | unsigned long symndx; | |
3542 | unsigned long extsymoff; | |
bcacc0f5 AM |
3543 | struct elf_link_hash_entry *h; |
3544 | ||
53720c49 AM |
3545 | /* The point of this little dance to the first SHF_GROUP section |
3546 | then back to the SHT_GROUP section is that this gets us to | |
3547 | the SHT_GROUP in the input object. */ | |
3548 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3549 | sec_data = elf_section_data (igroup); | |
3550 | symndx = sec_data->this_hdr.sh_info; | |
3551 | extsymoff = 0; | |
bcacc0f5 AM |
3552 | if (!elf_bad_symtab (igroup->owner)) |
3553 | { | |
3554 | Elf_Internal_Shdr *symtab_hdr; | |
3555 | ||
3556 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3557 | extsymoff = symtab_hdr->sh_info; | |
3558 | } | |
3559 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3560 | while (h->root.type == bfd_link_hash_indirect | |
3561 | || h->root.type == bfd_link_hash_warning) | |
3562 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3563 | ||
3564 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3565 | } |
dbb410c3 | 3566 | |
1126897b | 3567 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3568 | gas = TRUE; |
dbb410c3 AM |
3569 | if (sec->contents == NULL) |
3570 | { | |
b34976b6 | 3571 | gas = FALSE; |
a50b1753 | 3572 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3573 | |
3574 | /* Arrange for the section to be written out. */ | |
3575 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3576 | if (sec->contents == NULL) |
3577 | { | |
b34976b6 | 3578 | *failedptr = TRUE; |
dbb410c3 AM |
3579 | return; |
3580 | } | |
3581 | } | |
3582 | ||
eea6121a | 3583 | loc = sec->contents + sec->size; |
dbb410c3 | 3584 | |
9dce4196 AM |
3585 | /* Get the pointer to the first section in the group that gas |
3586 | squirreled away here. objcopy arranges for this to be set to the | |
3587 | start of the input section group. */ | |
3588 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3589 | |
3590 | /* First element is a flag word. Rest of section is elf section | |
3591 | indices for all the sections of the group. Write them backwards | |
3592 | just to keep the group in the same order as given in .section | |
3593 | directives, not that it matters. */ | |
3594 | while (elt != NULL) | |
3595 | { | |
9dce4196 | 3596 | asection *s; |
9dce4196 | 3597 | |
9dce4196 | 3598 | s = elt; |
415f38a6 AM |
3599 | if (!gas) |
3600 | s = s->output_section; | |
3601 | if (s != NULL | |
3602 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3603 | { |
db4677b8 | 3604 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3605 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3606 | ||
3607 | if (elf_sec->rel.hdr != NULL | |
3608 | && (gas | |
3609 | || (input_elf_sec->rel.hdr != NULL | |
3610 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3611 | { |
28e07a05 | 3612 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3613 | loc -= 4; |
3614 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3615 | } | |
28e07a05 AM |
3616 | if (elf_sec->rela.hdr != NULL |
3617 | && (gas | |
3618 | || (input_elf_sec->rela.hdr != NULL | |
3619 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3620 | { |
28e07a05 | 3621 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3622 | loc -= 4; |
3623 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3624 | } | |
01e1a5bc | 3625 | loc -= 4; |
db4677b8 | 3626 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3627 | } |
945906ff | 3628 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3629 | if (elt == first) |
3630 | break; | |
dbb410c3 AM |
3631 | } |
3632 | ||
7bdf4127 AB |
3633 | loc -= 4; |
3634 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3635 | |
9dce4196 | 3636 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3637 | } |
3638 | ||
bce964aa AM |
3639 | /* Given NAME, the name of a relocation section stripped of its |
3640 | .rel/.rela prefix, return the section in ABFD to which the | |
3641 | relocations apply. */ | |
bd53a53a L |
3642 | |
3643 | asection * | |
bce964aa AM |
3644 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3645 | { | |
3646 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3647 | section likely apply to .got.plt or .got section. */ | |
3648 | if (get_elf_backend_data (abfd)->want_got_plt | |
3649 | && strcmp (name, ".plt") == 0) | |
3650 | { | |
3651 | asection *sec; | |
3652 | ||
3653 | name = ".got.plt"; | |
3654 | sec = bfd_get_section_by_name (abfd, name); | |
3655 | if (sec != NULL) | |
3656 | return sec; | |
3657 | name = ".got"; | |
3658 | } | |
3659 | ||
3660 | return bfd_get_section_by_name (abfd, name); | |
3661 | } | |
3662 | ||
3663 | /* Return the section to which RELOC_SEC applies. */ | |
3664 | ||
3665 | static asection * | |
3666 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3667 | { |
3668 | const char *name; | |
3669 | unsigned int type; | |
3670 | bfd *abfd; | |
bce964aa | 3671 | const struct elf_backend_data *bed; |
bd53a53a L |
3672 | |
3673 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3674 | if (type != SHT_REL && type != SHT_RELA) | |
3675 | return NULL; | |
3676 | ||
3677 | /* We look up the section the relocs apply to by name. */ | |
3678 | name = reloc_sec->name; | |
bce964aa AM |
3679 | if (strncmp (name, ".rel", 4) != 0) |
3680 | return NULL; | |
3681 | name += 4; | |
3682 | if (type == SHT_RELA && *name++ != 'a') | |
3683 | return NULL; | |
bd53a53a | 3684 | |
bd53a53a | 3685 | abfd = reloc_sec->owner; |
bce964aa AM |
3686 | bed = get_elf_backend_data (abfd); |
3687 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3688 | } |
3689 | ||
252b5132 RH |
3690 | /* Assign all ELF section numbers. The dummy first section is handled here |
3691 | too. The link/info pointers for the standard section types are filled | |
3692 | in here too, while we're at it. */ | |
3693 | ||
b34976b6 | 3694 | static bfd_boolean |
da9f89d4 | 3695 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3696 | { |
3697 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3698 | asection *sec; | |
3e19fb8f | 3699 | unsigned int section_number; |
252b5132 | 3700 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3701 | struct bfd_elf_section_data *d; |
3516e984 | 3702 | bfd_boolean need_symtab; |
252b5132 RH |
3703 | |
3704 | section_number = 1; | |
3705 | ||
2b0f7ef9 JJ |
3706 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3707 | ||
da9f89d4 | 3708 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3709 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3710 | { |
ef53be89 | 3711 | size_t reloc_count = 0; |
14f2c699 | 3712 | |
da9f89d4 | 3713 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3714 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3715 | { |
5daa8fe7 | 3716 | d = elf_section_data (sec); |
da9f89d4 L |
3717 | |
3718 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3719 | { |
5daa8fe7 | 3720 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3721 | { |
3722 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3723 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3724 | abfd->section_count--; |
da9f89d4 | 3725 | } |
08a40648 | 3726 | else |
4fbb74a6 | 3727 | d->this_idx = section_number++; |
da9f89d4 | 3728 | } |
14f2c699 L |
3729 | |
3730 | /* Count relocations. */ | |
3731 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3732 | } |
14f2c699 L |
3733 | |
3734 | /* Clear HAS_RELOC if there are no relocations. */ | |
3735 | if (reloc_count == 0) | |
3736 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3737 | } |
3738 | ||
3739 | for (sec = abfd->sections; sec; sec = sec->next) | |
3740 | { | |
3741 | d = elf_section_data (sec); | |
3742 | ||
3743 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3744 | d->this_idx = section_number++; |
3e19fb8f L |
3745 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3746 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3747 | if (d->rel.hdr) |
2b0f7ef9 | 3748 | { |
d4730f92 | 3749 | d->rel.idx = section_number++; |
3e19fb8f L |
3750 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3751 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3752 | } |
d4730f92 BS |
3753 | else |
3754 | d->rel.idx = 0; | |
23bc299b | 3755 | |
d4730f92 | 3756 | if (d->rela.hdr) |
2b0f7ef9 | 3757 | { |
d4730f92 | 3758 | d->rela.idx = section_number++; |
3e19fb8f L |
3759 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3760 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3761 | } |
23bc299b | 3762 | else |
d4730f92 | 3763 | d->rela.idx = 0; |
252b5132 RH |
3764 | } |
3765 | ||
3516e984 L |
3766 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3767 | || (link_info == NULL | |
3768 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3769 | == HAS_RELOC))); | |
3770 | if (need_symtab) | |
252b5132 | 3771 | { |
12bd6957 | 3772 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3773 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3774 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3775 | { |
7a6e0d89 | 3776 | elf_section_list *entry; |
6a40cf0c NC |
3777 | |
3778 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3779 | ||
7a6e0d89 | 3780 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3781 | entry->ndx = section_number++; |
3782 | elf_symtab_shndx_list (abfd) = entry; | |
3783 | entry->hdr.sh_name | |
9ad5cbcf | 3784 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3785 | ".symtab_shndx", FALSE); |
6a40cf0c | 3786 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3787 | return FALSE; |
9ad5cbcf | 3788 | } |
12bd6957 | 3789 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3790 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3791 | } |
3792 | ||
dd905818 NC |
3793 | elf_shstrtab_sec (abfd) = section_number++; |
3794 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3795 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3796 | ||
1c52a645 L |
3797 | if (section_number >= SHN_LORESERVE) |
3798 | { | |
695344c0 | 3799 | /* xgettext:c-format */ |
871b3ab2 | 3800 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3801 | abfd, section_number); |
3802 | return FALSE; | |
3803 | } | |
3804 | ||
9ad5cbcf | 3805 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3806 | elf_elfheader (abfd)->e_shnum = section_number; |
3807 | ||
3808 | /* Set up the list of section header pointers, in agreement with the | |
3809 | indices. */ | |
a50b1753 | 3810 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
07d6d2b8 | 3811 | sizeof (Elf_Internal_Shdr *)); |
252b5132 | 3812 | if (i_shdrp == NULL) |
b34976b6 | 3813 | return FALSE; |
252b5132 | 3814 | |
a50b1753 | 3815 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3816 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3817 | if (i_shdrp[0] == NULL) |
3818 | { | |
3819 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3820 | return FALSE; |
252b5132 | 3821 | } |
252b5132 RH |
3822 | |
3823 | elf_elfsections (abfd) = i_shdrp; | |
3824 | ||
12bd6957 | 3825 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3826 | if (need_symtab) |
252b5132 | 3827 | { |
12bd6957 | 3828 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3829 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3830 | { |
6a40cf0c NC |
3831 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3832 | BFD_ASSERT (entry != NULL); | |
3833 | i_shdrp[entry->ndx] = & entry->hdr; | |
3834 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3835 | } |
12bd6957 AM |
3836 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3837 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3838 | } |
38ce5b11 | 3839 | |
252b5132 RH |
3840 | for (sec = abfd->sections; sec; sec = sec->next) |
3841 | { | |
252b5132 | 3842 | asection *s; |
252b5132 | 3843 | |
91d6fa6a NC |
3844 | d = elf_section_data (sec); |
3845 | ||
252b5132 | 3846 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3847 | if (d->rel.idx != 0) |
3848 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3849 | if (d->rela.idx != 0) | |
3850 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3851 | |
3852 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3853 | ||
3854 | /* sh_link of a reloc section is the section index of the symbol | |
3855 | table. sh_info is the section index of the section to which | |
3856 | the relocation entries apply. */ | |
d4730f92 | 3857 | if (d->rel.idx != 0) |
252b5132 | 3858 | { |
12bd6957 | 3859 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3860 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3861 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3862 | } |
d4730f92 | 3863 | if (d->rela.idx != 0) |
23bc299b | 3864 | { |
12bd6957 | 3865 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3866 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3867 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3868 | } |
252b5132 | 3869 | |
38ce5b11 L |
3870 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3871 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3872 | { | |
3873 | s = elf_linked_to_section (sec); | |
3874 | if (s) | |
38ce5b11 | 3875 | { |
f2876037 | 3876 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3877 | if (link_info != NULL) |
38ce5b11 | 3878 | { |
f2876037 | 3879 | /* Check discarded linkonce section. */ |
dbaa2011 | 3880 | if (discarded_section (s)) |
38ce5b11 | 3881 | { |
ccd2ec6a | 3882 | asection *kept; |
4eca0228 | 3883 | _bfd_error_handler |
695344c0 | 3884 | /* xgettext:c-format */ |
871b3ab2 AM |
3885 | (_("%pB: sh_link of section `%pA' points to" |
3886 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3887 | abfd, d->this_hdr.bfd_section, |
3888 | s, s->owner); | |
3889 | /* Point to the kept section if it has the same | |
3890 | size as the discarded one. */ | |
c0f00686 | 3891 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3892 | if (kept == NULL) |
185d09ad | 3893 | { |
ccd2ec6a L |
3894 | bfd_set_error (bfd_error_bad_value); |
3895 | return FALSE; | |
185d09ad | 3896 | } |
ccd2ec6a | 3897 | s = kept; |
38ce5b11 | 3898 | } |
e424ecc8 | 3899 | |
ccd2ec6a L |
3900 | s = s->output_section; |
3901 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3902 | } |
f2876037 L |
3903 | else |
3904 | { | |
3905 | /* Handle objcopy. */ | |
3906 | if (s->output_section == NULL) | |
3907 | { | |
4eca0228 | 3908 | _bfd_error_handler |
695344c0 | 3909 | /* xgettext:c-format */ |
871b3ab2 AM |
3910 | (_("%pB: sh_link of section `%pA' points to" |
3911 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3912 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3913 | bfd_set_error (bfd_error_bad_value); | |
3914 | return FALSE; | |
3915 | } | |
3916 | s = s->output_section; | |
3917 | } | |
ccd2ec6a L |
3918 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3919 | } | |
3920 | else | |
3921 | { | |
3922 | /* PR 290: | |
3923 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3924 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3925 | sh_info fields. Hence we could get the situation | |
08a40648 | 3926 | where s is NULL. */ |
ccd2ec6a L |
3927 | const struct elf_backend_data *bed |
3928 | = get_elf_backend_data (abfd); | |
3929 | if (bed->link_order_error_handler) | |
3930 | bed->link_order_error_handler | |
695344c0 | 3931 | /* xgettext:c-format */ |
871b3ab2 | 3932 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3933 | abfd, sec); |
38ce5b11 L |
3934 | } |
3935 | } | |
3936 | ||
252b5132 RH |
3937 | switch (d->this_hdr.sh_type) |
3938 | { | |
3939 | case SHT_REL: | |
3940 | case SHT_RELA: | |
3941 | /* A reloc section which we are treating as a normal BFD | |
3942 | section. sh_link is the section index of the symbol | |
3943 | table. sh_info is the section index of the section to | |
3944 | which the relocation entries apply. We assume that an | |
3945 | allocated reloc section uses the dynamic symbol table. | |
3946 | FIXME: How can we be sure? */ | |
3947 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3948 | if (s != NULL) | |
3949 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3950 | ||
bce964aa | 3951 | s = elf_get_reloc_section (sec); |
252b5132 | 3952 | if (s != NULL) |
9ef5d938 L |
3953 | { |
3954 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3955 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3956 | } | |
252b5132 RH |
3957 | break; |
3958 | ||
3959 | case SHT_STRTAB: | |
3960 | /* We assume that a section named .stab*str is a stabs | |
3961 | string section. We look for a section with the same name | |
3962 | but without the trailing ``str'', and set its sh_link | |
3963 | field to point to this section. */ | |
0112cd26 | 3964 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3965 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3966 | { | |
3967 | size_t len; | |
3968 | char *alc; | |
3969 | ||
3970 | len = strlen (sec->name); | |
a50b1753 | 3971 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3972 | if (alc == NULL) |
b34976b6 | 3973 | return FALSE; |
d4c88bbb | 3974 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3975 | alc[len - 3] = '\0'; |
3976 | s = bfd_get_section_by_name (abfd, alc); | |
3977 | free (alc); | |
3978 | if (s != NULL) | |
3979 | { | |
3980 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3981 | ||
3982 | /* This is a .stab section. */ | |
0594c12d AM |
3983 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3984 | elf_section_data (s)->this_hdr.sh_entsize | |
3985 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3986 | } |
3987 | } | |
3988 | break; | |
3989 | ||
3990 | case SHT_DYNAMIC: | |
3991 | case SHT_DYNSYM: | |
3992 | case SHT_GNU_verneed: | |
3993 | case SHT_GNU_verdef: | |
3994 | /* sh_link is the section header index of the string table | |
3995 | used for the dynamic entries, or the symbol table, or the | |
3996 | version strings. */ | |
3997 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3998 | if (s != NULL) | |
3999 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4000 | break; | |
4001 | ||
7f1204bb JJ |
4002 | case SHT_GNU_LIBLIST: |
4003 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
4004 | list used for the dynamic entries, or the symbol table, or |
4005 | the version strings. */ | |
7f1204bb JJ |
4006 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
4007 | ? ".dynstr" : ".gnu.libstr"); | |
4008 | if (s != NULL) | |
4009 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4010 | break; | |
4011 | ||
252b5132 | 4012 | case SHT_HASH: |
fdc90cb4 | 4013 | case SHT_GNU_HASH: |
252b5132 RH |
4014 | case SHT_GNU_versym: |
4015 | /* sh_link is the section header index of the symbol table | |
4016 | this hash table or version table is for. */ | |
4017 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
4018 | if (s != NULL) | |
4019 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
4020 | break; | |
dbb410c3 AM |
4021 | |
4022 | case SHT_GROUP: | |
12bd6957 | 4023 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
4024 | } |
4025 | } | |
4026 | ||
3e19fb8f L |
4027 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
4028 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
4029 | debug section name from .debug_* to .zdebug_* if needed. */ | |
4030 | ||
b34976b6 | 4031 | return TRUE; |
252b5132 RH |
4032 | } |
4033 | ||
5372391b | 4034 | static bfd_boolean |
217aa764 | 4035 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
4036 | { |
4037 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4038 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4039 | if (bed->elf_backend_sym_is_global) |
4040 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4041 | |
e47bf690 | 4042 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
4043 | || bfd_is_und_section (bfd_get_section (sym)) |
4044 | || bfd_is_com_section (bfd_get_section (sym))); | |
4045 | } | |
4046 | ||
76359541 TP |
4047 | /* Filter global symbols of ABFD to include in the import library. All |
4048 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4049 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4050 | the beginning of that array. | |
4051 | ||
4052 | Returns the number of symbols to keep. */ | |
4053 | ||
4054 | unsigned int | |
4055 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4056 | asymbol **syms, long symcount) | |
4057 | { | |
4058 | long src_count, dst_count = 0; | |
4059 | ||
4060 | for (src_count = 0; src_count < symcount; src_count++) | |
4061 | { | |
4062 | asymbol *sym = syms[src_count]; | |
4063 | char *name = (char *) bfd_asymbol_name (sym); | |
4064 | struct bfd_link_hash_entry *h; | |
4065 | ||
4066 | if (!sym_is_global (abfd, sym)) | |
4067 | continue; | |
4068 | ||
4069 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4070 | if (h == NULL) |
4071 | continue; | |
76359541 TP |
4072 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4073 | continue; | |
76359541 TP |
4074 | if (h->linker_def || h->ldscript_def) |
4075 | continue; | |
4076 | ||
4077 | syms[dst_count++] = sym; | |
4078 | } | |
4079 | ||
4080 | syms[dst_count] = NULL; | |
4081 | ||
4082 | return dst_count; | |
4083 | } | |
4084 | ||
5372391b | 4085 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4086 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4087 | |
4088 | static bfd_boolean | |
4089 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4090 | { | |
c6d8cab4 L |
4091 | elf_symbol_type *type_ptr; |
4092 | ||
db0c309f NC |
4093 | if (sym == NULL) |
4094 | return FALSE; | |
4095 | ||
c6d8cab4 L |
4096 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4097 | return FALSE; | |
4098 | ||
db0c309f NC |
4099 | if (sym->section == NULL) |
4100 | return TRUE; | |
4101 | ||
c6d8cab4 L |
4102 | type_ptr = elf_symbol_from (abfd, sym); |
4103 | return ((type_ptr != NULL | |
4104 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4105 | && bfd_is_abs_section (sym->section)) | |
4106 | || !(sym->section->owner == abfd | |
db0c309f NC |
4107 | || (sym->section->output_section != NULL |
4108 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4109 | && sym->section->output_offset == 0) |
4110 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4111 | } |
4112 | ||
2633a79c AM |
4113 | /* Map symbol from it's internal number to the external number, moving |
4114 | all local symbols to be at the head of the list. */ | |
4115 | ||
b34976b6 | 4116 | static bfd_boolean |
12bd6957 | 4117 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4118 | { |
dc810e39 | 4119 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4120 | asymbol **syms = bfd_get_outsymbols (abfd); |
4121 | asymbol **sect_syms; | |
dc810e39 AM |
4122 | unsigned int num_locals = 0; |
4123 | unsigned int num_globals = 0; | |
4124 | unsigned int num_locals2 = 0; | |
4125 | unsigned int num_globals2 = 0; | |
7292b3ac | 4126 | unsigned int max_index = 0; |
dc810e39 | 4127 | unsigned int idx; |
252b5132 RH |
4128 | asection *asect; |
4129 | asymbol **new_syms; | |
252b5132 RH |
4130 | |
4131 | #ifdef DEBUG | |
4132 | fprintf (stderr, "elf_map_symbols\n"); | |
4133 | fflush (stderr); | |
4134 | #endif | |
4135 | ||
252b5132 RH |
4136 | for (asect = abfd->sections; asect; asect = asect->next) |
4137 | { | |
4138 | if (max_index < asect->index) | |
4139 | max_index = asect->index; | |
4140 | } | |
4141 | ||
4142 | max_index++; | |
a50b1753 | 4143 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 4144 | if (sect_syms == NULL) |
b34976b6 | 4145 | return FALSE; |
252b5132 | 4146 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4147 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4148 | |
079e9a2f AM |
4149 | /* Init sect_syms entries for any section symbols we have already |
4150 | decided to output. */ | |
252b5132 RH |
4151 | for (idx = 0; idx < symcount; idx++) |
4152 | { | |
dc810e39 | 4153 | asymbol *sym = syms[idx]; |
c044fabd | 4154 | |
252b5132 | 4155 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4156 | && sym->value == 0 |
2633a79c AM |
4157 | && !ignore_section_sym (abfd, sym) |
4158 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4159 | { |
5372391b | 4160 | asection *sec = sym->section; |
252b5132 | 4161 | |
5372391b AM |
4162 | if (sec->owner != abfd) |
4163 | sec = sec->output_section; | |
252b5132 | 4164 | |
5372391b | 4165 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4166 | } |
4167 | } | |
4168 | ||
252b5132 RH |
4169 | /* Classify all of the symbols. */ |
4170 | for (idx = 0; idx < symcount; idx++) | |
4171 | { | |
2633a79c | 4172 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4173 | num_globals++; |
2633a79c AM |
4174 | else if (!ignore_section_sym (abfd, syms[idx])) |
4175 | num_locals++; | |
252b5132 | 4176 | } |
079e9a2f | 4177 | |
5372391b | 4178 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4179 | sections will already have a section symbol in outsymbols, but |
4180 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4181 | at least in that case. */ | |
252b5132 RH |
4182 | for (asect = abfd->sections; asect; asect = asect->next) |
4183 | { | |
079e9a2f | 4184 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4185 | { |
079e9a2f | 4186 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4187 | num_locals++; |
4188 | else | |
4189 | num_globals++; | |
252b5132 RH |
4190 | } |
4191 | } | |
4192 | ||
4193 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 | 4194 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
07d6d2b8 | 4195 | sizeof (asymbol *)); |
dc810e39 | 4196 | |
252b5132 | 4197 | if (new_syms == NULL) |
b34976b6 | 4198 | return FALSE; |
252b5132 RH |
4199 | |
4200 | for (idx = 0; idx < symcount; idx++) | |
4201 | { | |
4202 | asymbol *sym = syms[idx]; | |
dc810e39 | 4203 | unsigned int i; |
252b5132 | 4204 | |
2633a79c AM |
4205 | if (sym_is_global (abfd, sym)) |
4206 | i = num_locals + num_globals2++; | |
4207 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4208 | i = num_locals2++; |
4209 | else | |
2633a79c | 4210 | continue; |
252b5132 RH |
4211 | new_syms[i] = sym; |
4212 | sym->udata.i = i + 1; | |
4213 | } | |
4214 | for (asect = abfd->sections; asect; asect = asect->next) | |
4215 | { | |
079e9a2f | 4216 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4217 | { |
079e9a2f | 4218 | asymbol *sym = asect->symbol; |
dc810e39 | 4219 | unsigned int i; |
252b5132 | 4220 | |
079e9a2f | 4221 | sect_syms[asect->index] = sym; |
252b5132 RH |
4222 | if (!sym_is_global (abfd, sym)) |
4223 | i = num_locals2++; | |
4224 | else | |
4225 | i = num_locals + num_globals2++; | |
4226 | new_syms[i] = sym; | |
4227 | sym->udata.i = i + 1; | |
4228 | } | |
4229 | } | |
4230 | ||
4231 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4232 | ||
12bd6957 | 4233 | *pnum_locals = num_locals; |
b34976b6 | 4234 | return TRUE; |
252b5132 RH |
4235 | } |
4236 | ||
4237 | /* Align to the maximum file alignment that could be required for any | |
4238 | ELF data structure. */ | |
4239 | ||
268b6b39 | 4240 | static inline file_ptr |
217aa764 | 4241 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4242 | { |
4243 | return (off + align - 1) & ~(align - 1); | |
4244 | } | |
4245 | ||
4246 | /* Assign a file position to a section, optionally aligning to the | |
4247 | required section alignment. */ | |
4248 | ||
217aa764 AM |
4249 | file_ptr |
4250 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4251 | file_ptr offset, | |
4252 | bfd_boolean align) | |
252b5132 | 4253 | { |
72de5009 AM |
4254 | if (align && i_shdrp->sh_addralign > 1) |
4255 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4256 | i_shdrp->sh_offset = offset; |
4257 | if (i_shdrp->bfd_section != NULL) | |
4258 | i_shdrp->bfd_section->filepos = offset; | |
4259 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4260 | offset += i_shdrp->sh_size; | |
4261 | return offset; | |
4262 | } | |
4263 | ||
4264 | /* Compute the file positions we are going to put the sections at, and | |
4265 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4266 | is not NULL, this is being called by the ELF backend linker. */ | |
4267 | ||
b34976b6 | 4268 | bfd_boolean |
217aa764 AM |
4269 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4270 | struct bfd_link_info *link_info) | |
252b5132 | 4271 | { |
9c5bfbb7 | 4272 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4273 | struct fake_section_arg fsargs; |
b34976b6 | 4274 | bfd_boolean failed; |
ef10c3ac | 4275 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4276 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4277 | bfd_boolean need_symtab; |
252b5132 RH |
4278 | |
4279 | if (abfd->output_has_begun) | |
b34976b6 | 4280 | return TRUE; |
252b5132 RH |
4281 | |
4282 | /* Do any elf backend specific processing first. */ | |
4283 | if (bed->elf_backend_begin_write_processing) | |
4284 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4285 | ||
4286 | if (! prep_headers (abfd)) | |
b34976b6 | 4287 | return FALSE; |
252b5132 | 4288 | |
e6c51ed4 | 4289 | /* Post process the headers if necessary. */ |
78245035 | 4290 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 4291 | |
d4730f92 BS |
4292 | fsargs.failed = FALSE; |
4293 | fsargs.link_info = link_info; | |
4294 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4295 | if (fsargs.failed) | |
b34976b6 | 4296 | return FALSE; |
252b5132 | 4297 | |
da9f89d4 | 4298 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4299 | return FALSE; |
252b5132 RH |
4300 | |
4301 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4302 | need_symtab = (link_info == NULL |
4303 | && (bfd_get_symcount (abfd) > 0 | |
4304 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4305 | == HAS_RELOC))); | |
4306 | if (need_symtab) | |
252b5132 RH |
4307 | { |
4308 | /* Non-zero if doing a relocatable link. */ | |
4309 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4310 | ||
4311 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4312 | return FALSE; |
252b5132 RH |
4313 | } |
4314 | ||
d4730f92 | 4315 | failed = FALSE; |
1126897b | 4316 | if (link_info == NULL) |
dbb410c3 | 4317 | { |
1126897b | 4318 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4319 | if (failed) |
b34976b6 | 4320 | return FALSE; |
dbb410c3 AM |
4321 | } |
4322 | ||
252b5132 RH |
4323 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
4324 | /* sh_name was set in prep_headers. */ | |
4325 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
84865015 | 4326 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4327 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4328 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4329 | shstrtab_hdr->sh_entsize = 0; |
4330 | shstrtab_hdr->sh_link = 0; | |
4331 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4332 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4333 | shstrtab_hdr->sh_addralign = 1; |
4334 | ||
c84fca4d | 4335 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4336 | return FALSE; |
252b5132 | 4337 | |
3516e984 | 4338 | if (need_symtab) |
252b5132 RH |
4339 | { |
4340 | file_ptr off; | |
4341 | Elf_Internal_Shdr *hdr; | |
4342 | ||
12bd6957 | 4343 | off = elf_next_file_pos (abfd); |
252b5132 | 4344 | |
6a40cf0c | 4345 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4346 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4347 | |
6a40cf0c NC |
4348 | if (elf_symtab_shndx_list (abfd) != NULL) |
4349 | { | |
4350 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4351 | if (hdr->sh_size != 0) | |
4352 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4353 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4354 | } | |
9ad5cbcf | 4355 | |
252b5132 | 4356 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4357 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4358 | |
12bd6957 | 4359 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4360 | |
4361 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4362 | out. */ |
252b5132 | 4363 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4364 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4365 | return FALSE; |
ef10c3ac | 4366 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4367 | } |
4368 | ||
b34976b6 | 4369 | abfd->output_has_begun = TRUE; |
252b5132 | 4370 | |
b34976b6 | 4371 | return TRUE; |
252b5132 RH |
4372 | } |
4373 | ||
8ded5a0f AM |
4374 | /* Make an initial estimate of the size of the program header. If we |
4375 | get the number wrong here, we'll redo section placement. */ | |
4376 | ||
4377 | static bfd_size_type | |
4378 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4379 | { | |
4380 | size_t segs; | |
4381 | asection *s; | |
2b05f1b7 | 4382 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4383 | |
4384 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4385 | and one for data. */ | |
4386 | segs = 2; | |
4387 | ||
4388 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4389 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4390 | { |
4391 | /* If we have a loadable interpreter section, we need a | |
4392 | PT_INTERP segment. In this case, assume we also need a | |
4393 | PT_PHDR segment, although that may not be true for all | |
4394 | targets. */ | |
e9a38e0f | 4395 | segs += 2; |
8ded5a0f AM |
4396 | } |
4397 | ||
4398 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4399 | { | |
4400 | /* We need a PT_DYNAMIC segment. */ | |
4401 | ++segs; | |
f210dcff | 4402 | } |
08a40648 | 4403 | |
ceae84aa | 4404 | if (info != NULL && info->relro) |
f210dcff L |
4405 | { |
4406 | /* We need a PT_GNU_RELRO segment. */ | |
4407 | ++segs; | |
8ded5a0f AM |
4408 | } |
4409 | ||
12bd6957 | 4410 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4411 | { |
4412 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4413 | ++segs; | |
4414 | } | |
4415 | ||
12bd6957 | 4416 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4417 | { |
2b05f1b7 L |
4418 | /* We need a PT_GNU_STACK segment. */ |
4419 | ++segs; | |
4420 | } | |
94b11780 | 4421 | |
0a59decb L |
4422 | s = bfd_get_section_by_name (abfd, |
4423 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4424 | if (s != NULL && s->size != 0) | |
4425 | { | |
4426 | /* We need a PT_GNU_PROPERTY segment. */ | |
4427 | ++segs; | |
4428 | } | |
4429 | ||
2b05f1b7 L |
4430 | for (s = abfd->sections; s != NULL; s = s->next) |
4431 | { | |
8ded5a0f | 4432 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4433 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4434 | { |
23e463ed | 4435 | unsigned int alignment_power; |
8ded5a0f AM |
4436 | /* We need a PT_NOTE segment. */ |
4437 | ++segs; | |
23e463ed L |
4438 | /* Try to create just one PT_NOTE segment for all adjacent |
4439 | loadable SHT_NOTE sections. gABI requires that within a | |
4440 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4441 | each note should have the same alignment. So we check | |
4442 | whether the sections are correctly aligned. */ | |
4443 | alignment_power = s->alignment_power; | |
4444 | while (s->next != NULL | |
4445 | && s->next->alignment_power == alignment_power | |
4446 | && (s->next->flags & SEC_LOAD) != 0 | |
4447 | && elf_section_type (s->next) == SHT_NOTE) | |
4448 | s = s->next; | |
8ded5a0f AM |
4449 | } |
4450 | } | |
4451 | ||
4452 | for (s = abfd->sections; s != NULL; s = s->next) | |
4453 | { | |
4454 | if (s->flags & SEC_THREAD_LOCAL) | |
4455 | { | |
4456 | /* We need a PT_TLS segment. */ | |
4457 | ++segs; | |
4458 | break; | |
4459 | } | |
4460 | } | |
4461 | ||
2b05f1b7 | 4462 | bed = get_elf_backend_data (abfd); |
a91e1603 | 4463 | |
df3a023b AM |
4464 | if ((abfd->flags & D_PAGED) != 0 |
4465 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
4466 | { | |
4467 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4468 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4469 | for (s = abfd->sections; s != NULL; s = s->next) | |
4470 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4471 | { | |
4472 | if (elf_section_data (s)->this_hdr.sh_info > PT_GNU_MBIND_NUM) | |
4473 | { | |
4474 | _bfd_error_handler | |
4475 | /* xgettext:c-format */ | |
4476 | (_("%pB: GNU_MBIND section `%pA' has invalid " | |
4477 | "sh_info field: %d"), | |
4478 | abfd, s, elf_section_data (s)->this_hdr.sh_info); | |
4479 | continue; | |
4480 | } | |
4481 | /* Align mbind section to page size. */ | |
4482 | if (s->alignment_power < page_align_power) | |
4483 | s->alignment_power = page_align_power; | |
4484 | segs ++; | |
4485 | } | |
4486 | } | |
4487 | ||
4488 | /* Let the backend count up any program headers it might need. */ | |
4489 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4490 | { |
4491 | int a; | |
4492 | ||
4493 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4494 | if (a == -1) | |
4495 | abort (); | |
4496 | segs += a; | |
4497 | } | |
4498 | ||
4499 | return segs * bed->s->sizeof_phdr; | |
4500 | } | |
4501 | ||
2ea37f1c NC |
4502 | /* Find the segment that contains the output_section of section. */ |
4503 | ||
4504 | Elf_Internal_Phdr * | |
4505 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4506 | { | |
4507 | struct elf_segment_map *m; | |
4508 | Elf_Internal_Phdr *p; | |
4509 | ||
12bd6957 | 4510 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4511 | m != NULL; |
4512 | m = m->next, p++) | |
4513 | { | |
4514 | int i; | |
4515 | ||
4516 | for (i = m->count - 1; i >= 0; i--) | |
4517 | if (m->sections[i] == section) | |
4518 | return p; | |
4519 | } | |
4520 | ||
4521 | return NULL; | |
4522 | } | |
4523 | ||
252b5132 RH |
4524 | /* Create a mapping from a set of sections to a program segment. */ |
4525 | ||
217aa764 AM |
4526 | static struct elf_segment_map * |
4527 | make_mapping (bfd *abfd, | |
4528 | asection **sections, | |
4529 | unsigned int from, | |
4530 | unsigned int to, | |
4531 | bfd_boolean phdr) | |
252b5132 RH |
4532 | { |
4533 | struct elf_segment_map *m; | |
4534 | unsigned int i; | |
4535 | asection **hdrpp; | |
dc810e39 | 4536 | bfd_size_type amt; |
252b5132 | 4537 | |
00bee008 AM |
4538 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4539 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4540 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4541 | if (m == NULL) |
4542 | return NULL; | |
4543 | m->next = NULL; | |
4544 | m->p_type = PT_LOAD; | |
4545 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4546 | m->sections[i - from] = *hdrpp; | |
4547 | m->count = to - from; | |
4548 | ||
4549 | if (from == 0 && phdr) | |
4550 | { | |
4551 | /* Include the headers in the first PT_LOAD segment. */ | |
4552 | m->includes_filehdr = 1; | |
4553 | m->includes_phdrs = 1; | |
4554 | } | |
4555 | ||
4556 | return m; | |
4557 | } | |
4558 | ||
229fcec5 MM |
4559 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4560 | on failure. */ | |
4561 | ||
4562 | struct elf_segment_map * | |
4563 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4564 | { | |
4565 | struct elf_segment_map *m; | |
4566 | ||
a50b1753 | 4567 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4568 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4569 | if (m == NULL) |
4570 | return NULL; | |
4571 | m->next = NULL; | |
4572 | m->p_type = PT_DYNAMIC; | |
4573 | m->count = 1; | |
4574 | m->sections[0] = dynsec; | |
08a40648 | 4575 | |
229fcec5 MM |
4576 | return m; |
4577 | } | |
4578 | ||
8ded5a0f | 4579 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4580 | |
b34976b6 | 4581 | static bfd_boolean |
3dea8fca AM |
4582 | elf_modify_segment_map (bfd *abfd, |
4583 | struct bfd_link_info *info, | |
4584 | bfd_boolean remove_empty_load) | |
252b5132 | 4585 | { |
252e386e | 4586 | struct elf_segment_map **m; |
8ded5a0f | 4587 | const struct elf_backend_data *bed; |
252b5132 | 4588 | |
8ded5a0f AM |
4589 | /* The placement algorithm assumes that non allocated sections are |
4590 | not in PT_LOAD segments. We ensure this here by removing such | |
4591 | sections from the segment map. We also remove excluded | |
252e386e AM |
4592 | sections. Finally, any PT_LOAD segment without sections is |
4593 | removed. */ | |
12bd6957 | 4594 | m = &elf_seg_map (abfd); |
252e386e | 4595 | while (*m) |
8ded5a0f AM |
4596 | { |
4597 | unsigned int i, new_count; | |
252b5132 | 4598 | |
252e386e | 4599 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4600 | { |
252e386e AM |
4601 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4602 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4603 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4604 | { |
252e386e AM |
4605 | (*m)->sections[new_count] = (*m)->sections[i]; |
4606 | new_count++; | |
8ded5a0f AM |
4607 | } |
4608 | } | |
252e386e | 4609 | (*m)->count = new_count; |
252b5132 | 4610 | |
1a9ccd70 NC |
4611 | if (remove_empty_load |
4612 | && (*m)->p_type == PT_LOAD | |
4613 | && (*m)->count == 0 | |
4614 | && !(*m)->includes_phdrs) | |
252e386e AM |
4615 | *m = (*m)->next; |
4616 | else | |
4617 | m = &(*m)->next; | |
8ded5a0f | 4618 | } |
252b5132 | 4619 | |
8ded5a0f AM |
4620 | bed = get_elf_backend_data (abfd); |
4621 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4622 | { |
252e386e | 4623 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4624 | return FALSE; |
252b5132 | 4625 | } |
252b5132 | 4626 | |
8ded5a0f AM |
4627 | return TRUE; |
4628 | } | |
252b5132 | 4629 | |
dbc88fc1 AM |
4630 | #define IS_TBSS(s) \ |
4631 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4632 | ||
8ded5a0f | 4633 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4634 | |
8ded5a0f AM |
4635 | bfd_boolean |
4636 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4637 | { | |
4638 | unsigned int count; | |
4639 | struct elf_segment_map *m; | |
4640 | asection **sections = NULL; | |
4641 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4642 | bfd_boolean no_user_phdrs; |
252b5132 | 4643 | |
12bd6957 | 4644 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4645 | |
4646 | if (info != NULL) | |
4647 | info->user_phdrs = !no_user_phdrs; | |
4648 | ||
3dea8fca | 4649 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4650 | { |
8ded5a0f AM |
4651 | asection *s; |
4652 | unsigned int i; | |
4653 | struct elf_segment_map *mfirst; | |
4654 | struct elf_segment_map **pm; | |
4655 | asection *last_hdr; | |
4656 | bfd_vma last_size; | |
00bee008 | 4657 | unsigned int hdr_index; |
8ded5a0f AM |
4658 | bfd_vma maxpagesize; |
4659 | asection **hdrpp; | |
64029e93 | 4660 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4661 | bfd_boolean writable; |
2888249f | 4662 | bfd_boolean executable; |
8ded5a0f AM |
4663 | int tls_count = 0; |
4664 | asection *first_tls = NULL; | |
a91e1603 | 4665 | asection *first_mbind = NULL; |
8ded5a0f AM |
4666 | asection *dynsec, *eh_frame_hdr; |
4667 | bfd_size_type amt; | |
8d06853e | 4668 | bfd_vma addr_mask, wrap_to = 0; |
64029e93 | 4669 | bfd_size_type phdr_size; |
252b5132 | 4670 | |
8ded5a0f | 4671 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4672 | |
a50b1753 | 4673 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
07d6d2b8 | 4674 | sizeof (asection *)); |
8ded5a0f | 4675 | if (sections == NULL) |
252b5132 | 4676 | goto error_return; |
252b5132 | 4677 | |
8d06853e AM |
4678 | /* Calculate top address, avoiding undefined behaviour of shift |
4679 | left operator when shift count is equal to size of type | |
4680 | being shifted. */ | |
4681 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4682 | addr_mask = (addr_mask << 1) + 1; | |
4683 | ||
8ded5a0f AM |
4684 | i = 0; |
4685 | for (s = abfd->sections; s != NULL; s = s->next) | |
4686 | { | |
4687 | if ((s->flags & SEC_ALLOC) != 0) | |
4688 | { | |
4689 | sections[i] = s; | |
4690 | ++i; | |
8d06853e AM |
4691 | /* A wrapping section potentially clashes with header. */ |
4692 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4693 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4694 | } |
4695 | } | |
4696 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4697 | count = i; | |
252b5132 | 4698 | |
8ded5a0f | 4699 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4700 | |
64029e93 AM |
4701 | phdr_size = elf_program_header_size (abfd); |
4702 | if (phdr_size == (bfd_size_type) -1) | |
4703 | phdr_size = get_program_header_size (abfd, info); | |
4704 | phdr_size += bed->s->sizeof_ehdr; | |
4705 | maxpagesize = bed->maxpagesize; | |
4706 | if (maxpagesize == 0) | |
4707 | maxpagesize = 1; | |
4708 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4709 | if (count != 0 | |
4710 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4711 | >= (phdr_size & (maxpagesize - 1)))) | |
4712 | /* For compatibility with old scripts that may not be using | |
4713 | SIZEOF_HEADERS, add headers when it looks like space has | |
4714 | been left for them. */ | |
4715 | phdr_in_segment = TRUE; | |
252b5132 | 4716 | |
64029e93 | 4717 | /* Build the mapping. */ |
8ded5a0f AM |
4718 | mfirst = NULL; |
4719 | pm = &mfirst; | |
252b5132 | 4720 | |
8ded5a0f AM |
4721 | /* If we have a .interp section, then create a PT_PHDR segment for |
4722 | the program headers and a PT_INTERP segment for the .interp | |
4723 | section. */ | |
4724 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4725 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4726 | { |
4727 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4728 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4729 | if (m == NULL) |
4730 | goto error_return; | |
4731 | m->next = NULL; | |
4732 | m->p_type = PT_PHDR; | |
f882209d | 4733 | m->p_flags = PF_R; |
8ded5a0f AM |
4734 | m->p_flags_valid = 1; |
4735 | m->includes_phdrs = 1; | |
64029e93 | 4736 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4737 | *pm = m; |
4738 | pm = &m->next; | |
252b5132 | 4739 | |
8ded5a0f | 4740 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4741 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4742 | if (m == NULL) |
4743 | goto error_return; | |
4744 | m->next = NULL; | |
4745 | m->p_type = PT_INTERP; | |
4746 | m->count = 1; | |
4747 | m->sections[0] = s; | |
4748 | ||
4749 | *pm = m; | |
4750 | pm = &m->next; | |
252b5132 | 4751 | } |
8ded5a0f AM |
4752 | |
4753 | /* Look through the sections. We put sections in the same program | |
4754 | segment when the start of the second section can be placed within | |
4755 | a few bytes of the end of the first section. */ | |
4756 | last_hdr = NULL; | |
4757 | last_size = 0; | |
00bee008 | 4758 | hdr_index = 0; |
8ded5a0f | 4759 | writable = FALSE; |
2888249f | 4760 | executable = FALSE; |
8ded5a0f AM |
4761 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4762 | if (dynsec != NULL | |
4763 | && (dynsec->flags & SEC_LOAD) == 0) | |
4764 | dynsec = NULL; | |
4765 | ||
64029e93 AM |
4766 | if ((abfd->flags & D_PAGED) == 0) |
4767 | phdr_in_segment = FALSE; | |
4768 | ||
8ded5a0f AM |
4769 | /* Deal with -Ttext or something similar such that the first section |
4770 | is not adjacent to the program headers. This is an | |
4771 | approximation, since at this point we don't know exactly how many | |
4772 | program headers we will need. */ | |
64029e93 | 4773 | if (phdr_in_segment && count > 0) |
252b5132 | 4774 | { |
64029e93 AM |
4775 | bfd_vma phdr_lma; |
4776 | bfd_boolean separate_phdr = FALSE; | |
4777 | ||
4778 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4779 | if (info != NULL | |
4780 | && info->separate_code | |
4781 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4782 | { |
64029e93 AM |
4783 | /* If data sections should be separate from code and |
4784 | thus not executable, and the first section is | |
4785 | executable then put the file and program headers in | |
4786 | their own PT_LOAD. */ | |
4787 | separate_phdr = TRUE; | |
4788 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4789 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4790 | { | |
4791 | /* The file and program headers are currently on the | |
4792 | same page as the first section. Put them on the | |
4793 | previous page if we can. */ | |
4794 | if (phdr_lma >= maxpagesize) | |
4795 | phdr_lma -= maxpagesize; | |
4796 | else | |
4797 | separate_phdr = FALSE; | |
4798 | } | |
4799 | } | |
4800 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4801 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4802 | /* If file and program headers would be placed at the end | |
4803 | of memory then it's probably better to omit them. */ | |
4804 | phdr_in_segment = FALSE; | |
4805 | else if (phdr_lma < wrap_to) | |
4806 | /* If a section wraps around to where we'll be placing | |
4807 | file and program headers, then the headers will be | |
4808 | overwritten. */ | |
4809 | phdr_in_segment = FALSE; | |
4810 | else if (separate_phdr) | |
4811 | { | |
4812 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4813 | if (m == NULL) | |
4814 | goto error_return; | |
4815 | m->p_paddr = phdr_lma; | |
4816 | m->p_vaddr_offset | |
4817 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4818 | m->p_paddr_valid = 1; | |
4819 | *pm = m; | |
4820 | pm = &m->next; | |
4821 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4822 | } |
252b5132 RH |
4823 | } |
4824 | ||
8ded5a0f | 4825 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4826 | { |
8ded5a0f AM |
4827 | asection *hdr; |
4828 | bfd_boolean new_segment; | |
4829 | ||
4830 | hdr = *hdrpp; | |
4831 | ||
4832 | /* See if this section and the last one will fit in the same | |
4833 | segment. */ | |
4834 | ||
4835 | if (last_hdr == NULL) | |
4836 | { | |
4837 | /* If we don't have a segment yet, then we don't need a new | |
4838 | one (we build the last one after this loop). */ | |
4839 | new_segment = FALSE; | |
4840 | } | |
4841 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4842 | { | |
4843 | /* If this section has a different relation between the | |
4844 | virtual address and the load address, then we need a new | |
4845 | segment. */ | |
4846 | new_segment = TRUE; | |
4847 | } | |
b5599592 AM |
4848 | else if (hdr->lma < last_hdr->lma + last_size |
4849 | || last_hdr->lma + last_size < last_hdr->lma) | |
4850 | { | |
4851 | /* If this section has a load address that makes it overlap | |
4852 | the previous section, then we need a new segment. */ | |
4853 | new_segment = TRUE; | |
4854 | } | |
76cb3a89 AM |
4855 | else if ((abfd->flags & D_PAGED) != 0 |
4856 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4857 | == (hdr->lma & -maxpagesize))) | |
4858 | { | |
4859 | /* If we are demand paged then we can't map two disk | |
4860 | pages onto the same memory page. */ | |
4861 | new_segment = FALSE; | |
4862 | } | |
39948a60 NC |
4863 | /* In the next test we have to be careful when last_hdr->lma is close |
4864 | to the end of the address space. If the aligned address wraps | |
4865 | around to the start of the address space, then there are no more | |
4866 | pages left in memory and it is OK to assume that the current | |
4867 | section can be included in the current segment. */ | |
76cb3a89 AM |
4868 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4869 | + maxpagesize > last_hdr->lma) | |
4870 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4871 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4872 | { |
4873 | /* If putting this section in this segment would force us to | |
4874 | skip a page in the segment, then we need a new segment. */ | |
4875 | new_segment = TRUE; | |
4876 | } | |
4877 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4878 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4879 | { |
e5654c0f AM |
4880 | /* We don't want to put a loaded section after a |
4881 | nonloaded (ie. bss style) section in the same segment | |
4882 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4883 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4884 | new_segment = TRUE; |
4885 | } | |
4886 | else if ((abfd->flags & D_PAGED) == 0) | |
4887 | { | |
4888 | /* If the file is not demand paged, which means that we | |
4889 | don't require the sections to be correctly aligned in the | |
4890 | file, then there is no other reason for a new segment. */ | |
4891 | new_segment = FALSE; | |
4892 | } | |
2888249f L |
4893 | else if (info != NULL |
4894 | && info->separate_code | |
4895 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4896 | { | |
4897 | new_segment = TRUE; | |
4898 | } | |
8ded5a0f | 4899 | else if (! writable |
76cb3a89 | 4900 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4901 | { |
4902 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4903 | segment. */ |
8ded5a0f AM |
4904 | new_segment = TRUE; |
4905 | } | |
4906 | else | |
4907 | { | |
4908 | /* Otherwise, we can use the same segment. */ | |
4909 | new_segment = FALSE; | |
4910 | } | |
4911 | ||
2889e75b | 4912 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4913 | if (last_hdr != NULL |
4914 | && info != NULL | |
4915 | && info->callbacks->override_segment_assignment != NULL) | |
4916 | new_segment | |
4917 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4918 | last_hdr, | |
4919 | new_segment); | |
2889e75b | 4920 | |
8ded5a0f AM |
4921 | if (! new_segment) |
4922 | { | |
4923 | if ((hdr->flags & SEC_READONLY) == 0) | |
4924 | writable = TRUE; | |
2888249f L |
4925 | if ((hdr->flags & SEC_CODE) != 0) |
4926 | executable = TRUE; | |
8ded5a0f AM |
4927 | last_hdr = hdr; |
4928 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4929 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4930 | continue; |
4931 | } | |
4932 | ||
4933 | /* We need a new program segment. We must create a new program | |
00bee008 | 4934 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4935 | |
00bee008 | 4936 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4937 | if (m == NULL) |
4938 | goto error_return; | |
4939 | ||
4940 | *pm = m; | |
4941 | pm = &m->next; | |
4942 | ||
252b5132 | 4943 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4944 | writable = TRUE; |
8ded5a0f AM |
4945 | else |
4946 | writable = FALSE; | |
4947 | ||
2888249f L |
4948 | if ((hdr->flags & SEC_CODE) == 0) |
4949 | executable = FALSE; | |
4950 | else | |
4951 | executable = TRUE; | |
4952 | ||
baaff79e JJ |
4953 | last_hdr = hdr; |
4954 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4955 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
00bee008 | 4956 | hdr_index = i; |
8ded5a0f | 4957 | phdr_in_segment = FALSE; |
252b5132 RH |
4958 | } |
4959 | ||
86b2281f AM |
4960 | /* Create a final PT_LOAD program segment, but not if it's just |
4961 | for .tbss. */ | |
4962 | if (last_hdr != NULL | |
00bee008 | 4963 | && (i - hdr_index != 1 |
dbc88fc1 | 4964 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4965 | { |
00bee008 | 4966 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4967 | if (m == NULL) |
4968 | goto error_return; | |
252b5132 | 4969 | |
8ded5a0f AM |
4970 | *pm = m; |
4971 | pm = &m->next; | |
4972 | } | |
252b5132 | 4973 | |
8ded5a0f AM |
4974 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4975 | if (dynsec != NULL) | |
4976 | { | |
4977 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4978 | if (m == NULL) | |
4979 | goto error_return; | |
4980 | *pm = m; | |
4981 | pm = &m->next; | |
4982 | } | |
252b5132 | 4983 | |
23e463ed | 4984 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
4985 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
4986 | because if we link together nonloadable .note sections and | |
4987 | loadable .note sections, we will generate two .note sections | |
23e463ed | 4988 | in the output file. */ |
8ded5a0f AM |
4989 | for (s = abfd->sections; s != NULL; s = s->next) |
4990 | { | |
4991 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 4992 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4993 | { |
1c5265b5 | 4994 | asection *s2; |
23e463ed | 4995 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
4996 | |
4997 | count = 1; | |
23e463ed L |
4998 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
4999 | { | |
5000 | if (s2->next->alignment_power == alignment_power | |
5001 | && (s2->next->flags & SEC_LOAD) != 0 | |
5002 | && elf_section_type (s2->next) == SHT_NOTE | |
5003 | && align_power (s2->lma + s2->size, | |
5004 | alignment_power) | |
5005 | == s2->next->lma) | |
5006 | count++; | |
5007 | else | |
5008 | break; | |
5009 | } | |
00bee008 AM |
5010 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5011 | amt += count * sizeof (asection *); | |
a50b1753 | 5012 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5013 | if (m == NULL) |
5014 | goto error_return; | |
5015 | m->next = NULL; | |
5016 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
5017 | m->count = count; |
5018 | while (count > 1) | |
5019 | { | |
5020 | m->sections[m->count - count--] = s; | |
5021 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
5022 | s = s->next; | |
5023 | } | |
5024 | m->sections[m->count - 1] = s; | |
5025 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
5026 | *pm = m; |
5027 | pm = &m->next; | |
5028 | } | |
5029 | if (s->flags & SEC_THREAD_LOCAL) | |
5030 | { | |
5031 | if (! tls_count) | |
5032 | first_tls = s; | |
5033 | tls_count++; | |
5034 | } | |
a91e1603 L |
5035 | if (first_mbind == NULL |
5036 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
5037 | first_mbind = s; | |
8ded5a0f | 5038 | } |
252b5132 | 5039 | |
8ded5a0f AM |
5040 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5041 | if (tls_count > 0) | |
5042 | { | |
00bee008 AM |
5043 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5044 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5045 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5046 | if (m == NULL) |
5047 | goto error_return; | |
5048 | m->next = NULL; | |
5049 | m->p_type = PT_TLS; | |
5050 | m->count = tls_count; | |
5051 | /* Mandated PF_R. */ | |
5052 | m->p_flags = PF_R; | |
5053 | m->p_flags_valid = 1; | |
d923cae0 | 5054 | s = first_tls; |
91d6fa6a | 5055 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 5056 | { |
d923cae0 L |
5057 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5058 | { | |
5059 | _bfd_error_handler | |
871b3ab2 | 5060 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5061 | s = first_tls; |
5062 | i = 0; | |
5063 | while (i < (unsigned int) tls_count) | |
5064 | { | |
5065 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5066 | { | |
871b3ab2 | 5067 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5068 | i++; |
5069 | } | |
5070 | else | |
871b3ab2 | 5071 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5072 | s = s->next; |
5073 | } | |
5074 | bfd_set_error (bfd_error_bad_value); | |
5075 | goto error_return; | |
5076 | } | |
5077 | m->sections[i] = s; | |
5078 | s = s->next; | |
8ded5a0f | 5079 | } |
252b5132 | 5080 | |
8ded5a0f AM |
5081 | *pm = m; |
5082 | pm = &m->next; | |
5083 | } | |
252b5132 | 5084 | |
df3a023b AM |
5085 | if (first_mbind |
5086 | && (abfd->flags & D_PAGED) != 0 | |
5087 | && (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0) | |
a91e1603 L |
5088 | for (s = first_mbind; s != NULL; s = s->next) |
5089 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
df3a023b | 5090 | && elf_section_data (s)->this_hdr.sh_info <= PT_GNU_MBIND_NUM) |
a91e1603 L |
5091 | { |
5092 | /* Mandated PF_R. */ | |
5093 | unsigned long p_flags = PF_R; | |
5094 | if ((s->flags & SEC_READONLY) == 0) | |
5095 | p_flags |= PF_W; | |
5096 | if ((s->flags & SEC_CODE) != 0) | |
5097 | p_flags |= PF_X; | |
5098 | ||
5099 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5100 | m = bfd_zalloc (abfd, amt); | |
5101 | if (m == NULL) | |
5102 | goto error_return; | |
5103 | m->next = NULL; | |
5104 | m->p_type = (PT_GNU_MBIND_LO | |
5105 | + elf_section_data (s)->this_hdr.sh_info); | |
5106 | m->count = 1; | |
5107 | m->p_flags_valid = 1; | |
5108 | m->sections[0] = s; | |
5109 | m->p_flags = p_flags; | |
5110 | ||
5111 | *pm = m; | |
5112 | pm = &m->next; | |
5113 | } | |
5114 | ||
0a59decb L |
5115 | s = bfd_get_section_by_name (abfd, |
5116 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5117 | if (s != NULL && s->size != 0) | |
5118 | { | |
5119 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5120 | m = bfd_zalloc (abfd, amt); | |
5121 | if (m == NULL) | |
5122 | goto error_return; | |
5123 | m->next = NULL; | |
5124 | m->p_type = PT_GNU_PROPERTY; | |
5125 | m->count = 1; | |
5126 | m->p_flags_valid = 1; | |
5127 | m->sections[0] = s; | |
5128 | m->p_flags = PF_R; | |
5129 | *pm = m; | |
5130 | pm = &m->next; | |
5131 | } | |
5132 | ||
8ded5a0f AM |
5133 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5134 | segment. */ | |
12bd6957 | 5135 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5136 | if (eh_frame_hdr != NULL |
5137 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5138 | { |
dc810e39 | 5139 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5140 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5141 | if (m == NULL) |
5142 | goto error_return; | |
5143 | m->next = NULL; | |
8ded5a0f | 5144 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5145 | m->count = 1; |
8ded5a0f | 5146 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5147 | |
5148 | *pm = m; | |
5149 | pm = &m->next; | |
5150 | } | |
13ae64f3 | 5151 | |
12bd6957 | 5152 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5153 | { |
8ded5a0f | 5154 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5155 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5156 | if (m == NULL) |
5157 | goto error_return; | |
5158 | m->next = NULL; | |
2b05f1b7 | 5159 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5160 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5161 | m->p_align = bed->stack_align; |
8ded5a0f | 5162 | m->p_flags_valid = 1; |
04c3a755 NS |
5163 | m->p_align_valid = m->p_align != 0; |
5164 | if (info->stacksize > 0) | |
5165 | { | |
5166 | m->p_size = info->stacksize; | |
5167 | m->p_size_valid = 1; | |
5168 | } | |
252b5132 | 5169 | |
8ded5a0f AM |
5170 | *pm = m; |
5171 | pm = &m->next; | |
5172 | } | |
65765700 | 5173 | |
ceae84aa | 5174 | if (info != NULL && info->relro) |
8ded5a0f | 5175 | { |
f210dcff L |
5176 | for (m = mfirst; m != NULL; m = m->next) |
5177 | { | |
3832a4d8 AM |
5178 | if (m->p_type == PT_LOAD |
5179 | && m->count != 0 | |
5180 | && m->sections[0]->vma >= info->relro_start | |
5181 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5182 | { |
3832a4d8 AM |
5183 | i = m->count; |
5184 | while (--i != (unsigned) -1) | |
5185 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5186 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5187 | break; | |
5188 | ||
43a8475c | 5189 | if (i != (unsigned) -1) |
f210dcff L |
5190 | break; |
5191 | } | |
be01b344 | 5192 | } |
f210dcff L |
5193 | |
5194 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5195 | if (m != NULL) | |
5196 | { | |
5197 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5198 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5199 | if (m == NULL) |
5200 | goto error_return; | |
5201 | m->next = NULL; | |
5202 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5203 | *pm = m; |
5204 | pm = &m->next; | |
5205 | } | |
8ded5a0f | 5206 | } |
9ee5e499 | 5207 | |
8ded5a0f | 5208 | free (sections); |
12bd6957 | 5209 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5210 | } |
5211 | ||
3dea8fca | 5212 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5213 | return FALSE; |
8c37241b | 5214 | |
12bd6957 | 5215 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5216 | ++count; |
12bd6957 | 5217 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5218 | |
b34976b6 | 5219 | return TRUE; |
252b5132 RH |
5220 | |
5221 | error_return: | |
5222 | if (sections != NULL) | |
5223 | free (sections); | |
b34976b6 | 5224 | return FALSE; |
252b5132 RH |
5225 | } |
5226 | ||
5227 | /* Sort sections by address. */ | |
5228 | ||
5229 | static int | |
217aa764 | 5230 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5231 | { |
5232 | const asection *sec1 = *(const asection **) arg1; | |
5233 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5234 | bfd_size_type size1, size2; |
252b5132 RH |
5235 | |
5236 | /* Sort by LMA first, since this is the address used to | |
5237 | place the section into a segment. */ | |
5238 | if (sec1->lma < sec2->lma) | |
5239 | return -1; | |
5240 | else if (sec1->lma > sec2->lma) | |
5241 | return 1; | |
5242 | ||
5243 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5244 | the same, and this will do nothing. */ | |
5245 | if (sec1->vma < sec2->vma) | |
5246 | return -1; | |
5247 | else if (sec1->vma > sec2->vma) | |
5248 | return 1; | |
5249 | ||
5250 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5251 | ||
07c6e936 | 5252 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5253 | |
5254 | if (TOEND (sec1)) | |
5255 | { | |
5256 | if (TOEND (sec2)) | |
00a7cdc5 | 5257 | { |
67ce483b | 5258 | /* If the indices are the same, do not return 0 |
00a7cdc5 NC |
5259 | here, but continue to try the next comparison. */ |
5260 | if (sec1->target_index - sec2->target_index != 0) | |
5261 | return sec1->target_index - sec2->target_index; | |
5262 | } | |
252b5132 RH |
5263 | else |
5264 | return 1; | |
5265 | } | |
00a7cdc5 | 5266 | else if (TOEND (sec2)) |
252b5132 RH |
5267 | return -1; |
5268 | ||
5269 | #undef TOEND | |
5270 | ||
00a7cdc5 NC |
5271 | /* Sort by size, to put zero sized sections |
5272 | before others at the same address. */ | |
252b5132 | 5273 | |
eea6121a AM |
5274 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5275 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5276 | |
5277 | if (size1 < size2) | |
252b5132 | 5278 | return -1; |
eecdbe52 | 5279 | if (size1 > size2) |
252b5132 RH |
5280 | return 1; |
5281 | ||
5282 | return sec1->target_index - sec2->target_index; | |
5283 | } | |
5284 | ||
340b6d91 AC |
5285 | /* Ian Lance Taylor writes: |
5286 | ||
5287 | We shouldn't be using % with a negative signed number. That's just | |
5288 | not good. We have to make sure either that the number is not | |
5289 | negative, or that the number has an unsigned type. When the types | |
5290 | are all the same size they wind up as unsigned. When file_ptr is a | |
5291 | larger signed type, the arithmetic winds up as signed long long, | |
5292 | which is wrong. | |
5293 | ||
5294 | What we're trying to say here is something like ``increase OFF by | |
5295 | the least amount that will cause it to be equal to the VMA modulo | |
5296 | the page size.'' */ | |
5297 | /* In other words, something like: | |
5298 | ||
5299 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5300 | off_offset = off % bed->maxpagesize; | |
5301 | if (vma_offset < off_offset) | |
5302 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5303 | else | |
5304 | adjustment = vma_offset - off_offset; | |
08a40648 | 5305 | |
de194d85 | 5306 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5307 | |
5308 | static file_ptr | |
5309 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5310 | { | |
dc9155b2 NC |
5311 | /* PR binutils/16199: Handle an alignment of zero. */ |
5312 | if (maxpagesize == 0) | |
5313 | maxpagesize = 1; | |
340b6d91 AC |
5314 | return ((vma - off) % maxpagesize); |
5315 | } | |
5316 | ||
6d33f217 L |
5317 | static void |
5318 | print_segment_map (const struct elf_segment_map *m) | |
5319 | { | |
5320 | unsigned int j; | |
5321 | const char *pt = get_segment_type (m->p_type); | |
5322 | char buf[32]; | |
5323 | ||
5324 | if (pt == NULL) | |
5325 | { | |
5326 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5327 | sprintf (buf, "LOPROC+%7.7x", | |
5328 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5329 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5330 | sprintf (buf, "LOOS+%7.7x", | |
5331 | (unsigned int) (m->p_type - PT_LOOS)); | |
5332 | else | |
5333 | snprintf (buf, sizeof (buf), "%8.8x", | |
5334 | (unsigned int) m->p_type); | |
5335 | pt = buf; | |
5336 | } | |
4a97a0e5 | 5337 | fflush (stdout); |
6d33f217 L |
5338 | fprintf (stderr, "%s:", pt); |
5339 | for (j = 0; j < m->count; j++) | |
5340 | fprintf (stderr, " %s", m->sections [j]->name); | |
5341 | putc ('\n',stderr); | |
4a97a0e5 | 5342 | fflush (stderr); |
6d33f217 L |
5343 | } |
5344 | ||
32812159 AM |
5345 | static bfd_boolean |
5346 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5347 | { | |
5348 | void *buf; | |
5349 | bfd_boolean ret; | |
5350 | ||
5351 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5352 | return FALSE; | |
5353 | buf = bfd_zmalloc (len); | |
5354 | if (buf == NULL) | |
5355 | return FALSE; | |
5356 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5357 | free (buf); | |
5358 | return ret; | |
5359 | } | |
5360 | ||
252b5132 RH |
5361 | /* Assign file positions to the sections based on the mapping from |
5362 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5363 | the file header. */ |
252b5132 | 5364 | |
b34976b6 | 5365 | static bfd_boolean |
f3520d2f AM |
5366 | assign_file_positions_for_load_sections (bfd *abfd, |
5367 | struct bfd_link_info *link_info) | |
252b5132 RH |
5368 | { |
5369 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5370 | struct elf_segment_map *m; |
252b5132 | 5371 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5372 | Elf_Internal_Phdr *p; |
02bf8d82 | 5373 | file_ptr off; |
3f570048 | 5374 | bfd_size_type maxpagesize; |
a8c75b76 | 5375 | unsigned int pt_load_count = 0; |
f3520d2f | 5376 | unsigned int alloc; |
0920dee7 | 5377 | unsigned int i, j; |
2b0bc088 | 5378 | bfd_vma header_pad = 0; |
252b5132 | 5379 | |
e36284ab | 5380 | if (link_info == NULL |
ceae84aa | 5381 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5382 | return FALSE; |
252b5132 | 5383 | |
8ded5a0f | 5384 | alloc = 0; |
12bd6957 | 5385 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
5386 | { |
5387 | ++alloc; | |
5388 | if (m->header_size) | |
5389 | header_pad = m->header_size; | |
5390 | } | |
252b5132 | 5391 | |
82f2dbf7 NC |
5392 | if (alloc) |
5393 | { | |
5394 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5395 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5396 | } | |
5397 | else | |
5398 | { | |
5399 | /* PR binutils/12467. */ | |
5400 | elf_elfheader (abfd)->e_phoff = 0; | |
5401 | elf_elfheader (abfd)->e_phentsize = 0; | |
5402 | } | |
d324f6d6 | 5403 | |
8ded5a0f | 5404 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5405 | |
12bd6957 AM |
5406 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
5407 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 5408 | else |
12bd6957 | 5409 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 5410 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
5411 | |
5412 | if (alloc == 0) | |
f3520d2f | 5413 | { |
12bd6957 | 5414 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5415 | return TRUE; |
f3520d2f | 5416 | } |
252b5132 | 5417 | |
12bd6957 | 5418 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5419 | see assign_file_positions_except_relocs, so make sure we have |
5420 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5421 | The variable alloc contains the computed need, while |
5422 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5423 | layout. |
5424 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5425 | where the layout is forced to according to a larger size in the | |
5426 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 5427 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 5428 | == 0); |
a50b1753 NC |
5429 | phdrs = (Elf_Internal_Phdr *) |
5430 | bfd_zalloc2 (abfd, | |
07d6d2b8 AM |
5431 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
5432 | sizeof (Elf_Internal_Phdr)); | |
f3520d2f | 5433 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5434 | if (phdrs == NULL) |
b34976b6 | 5435 | return FALSE; |
252b5132 | 5436 | |
3f570048 AM |
5437 | maxpagesize = 1; |
5438 | if ((abfd->flags & D_PAGED) != 0) | |
5439 | maxpagesize = bed->maxpagesize; | |
5440 | ||
252b5132 RH |
5441 | off = bed->s->sizeof_ehdr; |
5442 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5443 | if (header_pad < (bfd_vma) off) |
5444 | header_pad = 0; | |
5445 | else | |
5446 | header_pad -= off; | |
5447 | off += header_pad; | |
252b5132 | 5448 | |
12bd6957 | 5449 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 5450 | m != NULL; |
0920dee7 | 5451 | m = m->next, p++, j++) |
252b5132 | 5452 | { |
252b5132 | 5453 | asection **secpp; |
bf988460 AM |
5454 | bfd_vma off_adjust; |
5455 | bfd_boolean no_contents; | |
252b5132 RH |
5456 | |
5457 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 5458 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5459 | not be done to the PT_NOTE section of a corefile, which may |
5460 | contain several pseudo-sections artificially created by bfd. | |
5461 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5462 | if (m->count > 1 |
5463 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5464 | && m->p_type == PT_NOTE)) |
252b5132 RH |
5465 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
5466 | elf_sort_sections); | |
5467 | ||
b301b248 AM |
5468 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5469 | number of sections with contents contributing to both p_filesz | |
5470 | and p_memsz, followed by a number of sections with no contents | |
5471 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5472 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 5473 | p->p_type = m->p_type; |
28a7f3e7 | 5474 | p->p_flags = m->p_flags; |
252b5132 | 5475 | |
3f570048 | 5476 | if (m->count == 0) |
5d695627 | 5477 | p->p_vaddr = m->p_vaddr_offset; |
3f570048 | 5478 | else |
5d695627 | 5479 | p->p_vaddr = m->sections[0]->vma + m->p_vaddr_offset; |
3f570048 AM |
5480 | |
5481 | if (m->p_paddr_valid) | |
5482 | p->p_paddr = m->p_paddr; | |
5483 | else if (m->count == 0) | |
5484 | p->p_paddr = 0; | |
5485 | else | |
5d695627 | 5486 | p->p_paddr = m->sections[0]->lma + m->p_vaddr_offset; |
3f570048 AM |
5487 | |
5488 | if (p->p_type == PT_LOAD | |
5489 | && (abfd->flags & D_PAGED) != 0) | |
5490 | { | |
5491 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5492 | the maximum page size. When copying an executable with | |
5493 | objcopy, we set m->p_align from the input file. Use this | |
5494 | value for maxpagesize rather than bed->maxpagesize, which | |
5495 | may be different. Note that we use maxpagesize for PT_TLS | |
5496 | segment alignment later in this function, so we are relying | |
5497 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5498 | segment. */ | |
5499 | if (m->p_align_valid) | |
5500 | maxpagesize = m->p_align; | |
5501 | ||
5502 | p->p_align = maxpagesize; | |
a8c75b76 | 5503 | pt_load_count += 1; |
3f570048 | 5504 | } |
3271a814 NS |
5505 | else if (m->p_align_valid) |
5506 | p->p_align = m->p_align; | |
e970b90a DJ |
5507 | else if (m->count == 0) |
5508 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
5509 | else |
5510 | p->p_align = 0; | |
5511 | ||
bf988460 AM |
5512 | no_contents = FALSE; |
5513 | off_adjust = 0; | |
252b5132 | 5514 | if (p->p_type == PT_LOAD |
b301b248 | 5515 | && m->count > 0) |
252b5132 | 5516 | { |
b301b248 | 5517 | bfd_size_type align; |
a49e53ed | 5518 | unsigned int align_power = 0; |
b301b248 | 5519 | |
3271a814 NS |
5520 | if (m->p_align_valid) |
5521 | align = p->p_align; | |
5522 | else | |
252b5132 | 5523 | { |
3271a814 NS |
5524 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5525 | { | |
5526 | unsigned int secalign; | |
08a40648 | 5527 | |
3271a814 NS |
5528 | secalign = bfd_get_section_alignment (abfd, *secpp); |
5529 | if (secalign > align_power) | |
5530 | align_power = secalign; | |
5531 | } | |
5532 | align = (bfd_size_type) 1 << align_power; | |
5533 | if (align < maxpagesize) | |
5534 | align = maxpagesize; | |
b301b248 | 5535 | } |
252b5132 | 5536 | |
02bf8d82 AM |
5537 | for (i = 0; i < m->count; i++) |
5538 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5539 | /* If we aren't making room for this section, then | |
5540 | it must be SHT_NOBITS regardless of what we've | |
5541 | set via struct bfd_elf_special_section. */ | |
5542 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5543 | ||
bf988460 | 5544 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5545 | sections. */ |
5546 | no_contents = TRUE; | |
5547 | for (i = 0; i < m->count; i++) | |
5548 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5549 | { | |
5550 | no_contents = FALSE; | |
5551 | break; | |
5552 | } | |
bf988460 | 5553 | |
85cfcbfb | 5554 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5555 | |
5556 | /* Broken hardware and/or kernel require that files do not | |
5557 | map the same page with different permissions on some hppa | |
5558 | processors. */ | |
5559 | if (pt_load_count > 1 | |
5560 | && bed->no_page_alias | |
5561 | && (off & (maxpagesize - 1)) != 0 | |
5562 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5563 | off_adjust += maxpagesize; | |
bf988460 AM |
5564 | off += off_adjust; |
5565 | if (no_contents) | |
5566 | { | |
5567 | /* We shouldn't need to align the segment on disk since | |
5568 | the segment doesn't need file space, but the gABI | |
5569 | arguably requires the alignment and glibc ld.so | |
5570 | checks it. So to comply with the alignment | |
5571 | requirement but not waste file space, we adjust | |
5572 | p_offset for just this segment. (OFF_ADJUST is | |
5573 | subtracted from OFF later.) This may put p_offset | |
5574 | past the end of file, but that shouldn't matter. */ | |
5575 | } | |
5576 | else | |
5577 | off_adjust = 0; | |
252b5132 | 5578 | } |
b1a6d0b1 NC |
5579 | /* Make sure the .dynamic section is the first section in the |
5580 | PT_DYNAMIC segment. */ | |
5581 | else if (p->p_type == PT_DYNAMIC | |
5582 | && m->count > 1 | |
5583 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5584 | { | |
5585 | _bfd_error_handler | |
871b3ab2 | 5586 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5587 | " is not the .dynamic section"), |
b301b248 | 5588 | abfd); |
b1a6d0b1 NC |
5589 | bfd_set_error (bfd_error_bad_value); |
5590 | return FALSE; | |
5591 | } | |
3f001e84 JK |
5592 | /* Set the note section type to SHT_NOTE. */ |
5593 | else if (p->p_type == PT_NOTE) | |
5594 | for (i = 0; i < m->count; i++) | |
5595 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5596 | |
252b5132 RH |
5597 | p->p_offset = 0; |
5598 | p->p_filesz = 0; | |
5599 | p->p_memsz = 0; | |
5600 | ||
5601 | if (m->includes_filehdr) | |
5602 | { | |
bf988460 | 5603 | if (!m->p_flags_valid) |
252b5132 | 5604 | p->p_flags |= PF_R; |
252b5132 RH |
5605 | p->p_filesz = bed->s->sizeof_ehdr; |
5606 | p->p_memsz = bed->s->sizeof_ehdr; | |
5607 | if (m->count > 0) | |
5608 | { | |
9ab82472 L |
5609 | if (p->p_vaddr < (bfd_vma) off |
5610 | || (!m->p_paddr_valid | |
5611 | && p->p_paddr < (bfd_vma) off)) | |
252b5132 | 5612 | { |
4eca0228 | 5613 | _bfd_error_handler |
9793eb77 | 5614 | (_("%pB: not enough room for program headers," |
63a5468a | 5615 | " try linking with -N"), |
b301b248 | 5616 | abfd); |
252b5132 | 5617 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 5618 | return FALSE; |
252b5132 RH |
5619 | } |
5620 | ||
5621 | p->p_vaddr -= off; | |
bf988460 | 5622 | if (!m->p_paddr_valid) |
252b5132 RH |
5623 | p->p_paddr -= off; |
5624 | } | |
252b5132 RH |
5625 | } |
5626 | ||
5627 | if (m->includes_phdrs) | |
5628 | { | |
bf988460 | 5629 | if (!m->p_flags_valid) |
252b5132 RH |
5630 | p->p_flags |= PF_R; |
5631 | ||
f3520d2f | 5632 | if (!m->includes_filehdr) |
252b5132 RH |
5633 | { |
5634 | p->p_offset = bed->s->sizeof_ehdr; | |
5635 | ||
5636 | if (m->count > 0) | |
5637 | { | |
252b5132 | 5638 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 5639 | if (!m->p_paddr_valid) |
252b5132 RH |
5640 | p->p_paddr -= off - p->p_offset; |
5641 | } | |
252b5132 RH |
5642 | } |
5643 | ||
5644 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
5645 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5646 | if (m->count) |
5647 | { | |
5648 | p->p_filesz += header_pad; | |
5649 | p->p_memsz += header_pad; | |
5650 | } | |
252b5132 RH |
5651 | } |
5652 | ||
5653 | if (p->p_type == PT_LOAD | |
5654 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5655 | { | |
bf988460 | 5656 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5657 | p->p_offset = off; |
252b5132 RH |
5658 | else |
5659 | { | |
5660 | file_ptr adjust; | |
5661 | ||
5662 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5663 | if (!no_contents) |
5664 | p->p_filesz += adjust; | |
252b5132 RH |
5665 | p->p_memsz += adjust; |
5666 | } | |
5667 | } | |
5668 | ||
1ea63fd2 AM |
5669 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5670 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5671 | core files, for sections in PT_NOTE segments. | |
5672 | assign_file_positions_for_non_load_sections will set filepos | |
5673 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5674 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5675 | { | |
5676 | asection *sec; | |
252b5132 | 5677 | bfd_size_type align; |
627b32bc | 5678 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5679 | |
5680 | sec = *secpp; | |
02bf8d82 | 5681 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 5682 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 5683 | |
88967714 AM |
5684 | if ((p->p_type == PT_LOAD |
5685 | || p->p_type == PT_TLS) | |
5686 | && (this_hdr->sh_type != SHT_NOBITS | |
5687 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5688 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5689 | || p->p_type == PT_TLS)))) | |
252b5132 | 5690 | { |
b5599592 AM |
5691 | bfd_vma p_start = p->p_paddr; |
5692 | bfd_vma p_end = p_start + p->p_memsz; | |
5693 | bfd_vma s_start = sec->lma; | |
5694 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5695 | |
a2d1e028 L |
5696 | if (adjust != 0 |
5697 | && (s_start < p_end | |
5698 | || p_end < p_start)) | |
252b5132 | 5699 | { |
4eca0228 | 5700 | _bfd_error_handler |
695344c0 | 5701 | /* xgettext:c-format */ |
2dcf00ce AM |
5702 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5703 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5704 | adjust = 0; |
b5599592 | 5705 | sec->lma = p_end; |
1cfb7d1e | 5706 | } |
3ac9b6c9 | 5707 | p->p_memsz += adjust; |
1cfb7d1e | 5708 | |
88967714 AM |
5709 | if (this_hdr->sh_type != SHT_NOBITS) |
5710 | { | |
32812159 AM |
5711 | if (p->p_filesz + adjust < p->p_memsz) |
5712 | { | |
5713 | /* We have a PROGBITS section following NOBITS ones. | |
07d6d2b8 | 5714 | Allocate file space for the NOBITS section(s) and |
32812159 AM |
5715 | zero it. */ |
5716 | adjust = p->p_memsz - p->p_filesz; | |
5717 | if (!write_zeros (abfd, off, adjust)) | |
5718 | return FALSE; | |
5719 | } | |
88967714 AM |
5720 | off += adjust; |
5721 | p->p_filesz += adjust; | |
252b5132 | 5722 | } |
252b5132 RH |
5723 | } |
5724 | ||
5725 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5726 | { | |
b301b248 AM |
5727 | /* The section at i == 0 is the one that actually contains |
5728 | everything. */ | |
4a938328 MS |
5729 | if (i == 0) |
5730 | { | |
627b32bc | 5731 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5732 | off += this_hdr->sh_size; |
5733 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5734 | p->p_memsz = 0; |
5735 | p->p_align = 1; | |
252b5132 | 5736 | } |
4a938328 | 5737 | else |
252b5132 | 5738 | { |
b301b248 | 5739 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5740 | sec->filepos = 0; |
eea6121a | 5741 | sec->size = 0; |
b301b248 AM |
5742 | sec->flags = 0; |
5743 | continue; | |
252b5132 | 5744 | } |
252b5132 RH |
5745 | } |
5746 | else | |
5747 | { | |
1e951488 | 5748 | if (p->p_type == PT_LOAD) |
b301b248 | 5749 | { |
1e951488 AM |
5750 | this_hdr->sh_offset = sec->filepos = off; |
5751 | if (this_hdr->sh_type != SHT_NOBITS) | |
5752 | off += this_hdr->sh_size; | |
5753 | } | |
5754 | else if (this_hdr->sh_type == SHT_NOBITS | |
5755 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5756 | && this_hdr->sh_offset == 0) | |
5757 | { | |
5758 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5759 | (See _bfd_elf_map_sections_to_segments "Create a | |
5760 | final PT_LOAD".) Set sh_offset to the value it | |
5761 | would have if we had created a zero p_filesz and | |
5762 | p_memsz PT_LOAD header for the section. This | |
5763 | also makes the PT_TLS header have the same | |
5764 | p_offset value. */ | |
5765 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5766 | off, align); | |
5767 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5768 | } |
252b5132 | 5769 | |
02bf8d82 | 5770 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5771 | { |
6a3cd2b4 | 5772 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5773 | /* A load section without SHF_ALLOC is something like |
5774 | a note section in a PT_NOTE segment. These take | |
5775 | file space but are not loaded into memory. */ | |
5776 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5777 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5778 | } |
6a3cd2b4 | 5779 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5780 | { |
6a3cd2b4 AM |
5781 | if (p->p_type == PT_TLS) |
5782 | p->p_memsz += this_hdr->sh_size; | |
5783 | ||
5784 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5785 | normal segments. */ | |
5786 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5787 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5788 | } |
5789 | ||
b10a8ae0 L |
5790 | if (align > p->p_align |
5791 | && !m->p_align_valid | |
5792 | && (p->p_type != PT_LOAD | |
5793 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5794 | p->p_align = align; |
5795 | } | |
5796 | ||
bf988460 | 5797 | if (!m->p_flags_valid) |
252b5132 RH |
5798 | { |
5799 | p->p_flags |= PF_R; | |
02bf8d82 | 5800 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5801 | p->p_flags |= PF_X; |
02bf8d82 | 5802 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5803 | p->p_flags |= PF_W; |
5804 | } | |
5805 | } | |
43a8475c | 5806 | |
bf988460 | 5807 | off -= off_adjust; |
0920dee7 | 5808 | |
7c928300 AM |
5809 | /* Check that all sections are in a PT_LOAD segment. |
5810 | Don't check funky gdb generated core files. */ | |
5811 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5812 | { |
5813 | bfd_boolean check_vma = TRUE; | |
5814 | ||
5815 | for (i = 1; i < m->count; i++) | |
5816 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5817 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5818 | ->this_hdr), p) != 0 | |
5819 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5820 | ->this_hdr), p) != 0) | |
0920dee7 | 5821 | { |
9a83a553 AM |
5822 | /* Looks like we have overlays packed into the segment. */ |
5823 | check_vma = FALSE; | |
5824 | break; | |
0920dee7 | 5825 | } |
9a83a553 AM |
5826 | |
5827 | for (i = 0; i < m->count; i++) | |
5828 | { | |
5829 | Elf_Internal_Shdr *this_hdr; | |
5830 | asection *sec; | |
5831 | ||
5832 | sec = m->sections[i]; | |
5833 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5834 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5835 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5836 | { |
4eca0228 | 5837 | _bfd_error_handler |
695344c0 | 5838 | /* xgettext:c-format */ |
871b3ab2 | 5839 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5840 | abfd, sec, j); |
5841 | print_segment_map (m); | |
5842 | } | |
5843 | } | |
5844 | } | |
252b5132 RH |
5845 | } |
5846 | ||
12bd6957 | 5847 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
5848 | return TRUE; |
5849 | } | |
5850 | ||
1faa385f NC |
5851 | /* Determine if a bfd is a debuginfo file. Unfortunately there |
5852 | is no defined method for detecting such files, so we have to | |
5853 | use heuristics instead. */ | |
5854 | ||
5855 | bfd_boolean | |
5856 | is_debuginfo_file (bfd *abfd) | |
5857 | { | |
5858 | if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
5859 | return FALSE; | |
5860 | ||
5861 | Elf_Internal_Shdr **start_headers = elf_elfsections (abfd); | |
5862 | Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd); | |
5863 | Elf_Internal_Shdr **headerp; | |
5864 | ||
5865 | for (headerp = start_headers; headerp < end_headers; headerp ++) | |
5866 | { | |
5867 | Elf_Internal_Shdr *header = * headerp; | |
5868 | ||
5869 | /* Debuginfo files do not have any allocated SHT_PROGBITS sections. | |
5870 | The only allocated sections are SHT_NOBITS or SHT_NOTES. */ | |
5871 | if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC | |
5872 | && header->sh_type != SHT_NOBITS | |
5873 | && header->sh_type != SHT_NOTE) | |
5874 | return FALSE; | |
5875 | } | |
5876 | ||
5877 | return TRUE; | |
5878 | } | |
5879 | ||
f3520d2f AM |
5880 | /* Assign file positions for the other sections. */ |
5881 | ||
5882 | static bfd_boolean | |
5883 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
5884 | struct bfd_link_info *link_info) | |
5885 | { | |
5886 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
5887 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 5888 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
5889 | Elf_Internal_Phdr *phdrs; |
5890 | Elf_Internal_Phdr *p; | |
5891 | struct elf_segment_map *m; | |
62655c7b | 5892 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
5893 | bfd_vma filehdr_vaddr, filehdr_paddr; |
5894 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
5895 | file_ptr off; | |
f3520d2f AM |
5896 | unsigned int count; |
5897 | ||
5c182d5f | 5898 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 5899 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 5900 | off = elf_next_file_pos (abfd); |
e06efbf1 | 5901 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 5902 | { |
5c182d5f AM |
5903 | Elf_Internal_Shdr *hdr; |
5904 | ||
5905 | hdr = *hdrpp; | |
5906 | if (hdr->bfd_section != NULL | |
252e386e AM |
5907 | && (hdr->bfd_section->filepos != 0 |
5908 | || (hdr->sh_type == SHT_NOBITS | |
5909 | && hdr->contents == NULL))) | |
627b32bc | 5910 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
5911 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
5912 | { | |
1faa385f NC |
5913 | if (hdr->sh_size != 0 |
5914 | /* PR 24717 - debuginfo files are known to be not strictly | |
5915 | compliant with the ELF standard. In particular they often | |
5916 | have .note.gnu.property sections that are outside of any | |
5917 | loadable segment. This is not a problem for such files, | |
5918 | so do not warn about them. */ | |
5919 | && ! is_debuginfo_file (abfd)) | |
4eca0228 | 5920 | _bfd_error_handler |
695344c0 | 5921 | /* xgettext:c-format */ |
871b3ab2 | 5922 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
5923 | abfd, |
5924 | (hdr->bfd_section == NULL | |
5925 | ? "*unknown*" | |
5926 | : hdr->bfd_section->name)); | |
3ba71138 L |
5927 | /* We don't need to page align empty sections. */ |
5928 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
5929 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
5930 | bed->maxpagesize); | |
5931 | else | |
5932 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
5933 | hdr->sh_addralign); | |
5934 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
5935 | FALSE); | |
5936 | } | |
5937 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
5938 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
5939 | || (hdr->bfd_section != NULL |
5940 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
5941 | /* Compress DWARF debug sections. */ | |
12bd6957 | 5942 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
5943 | || (elf_symtab_shndx_list (abfd) != NULL |
5944 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
5945 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
5946 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
5947 | hdr->sh_offset = -1; |
5948 | else | |
5949 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
5950 | } |
5951 | ||
252b5132 RH |
5952 | /* Now that we have set the section file positions, we can set up |
5953 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
5954 | count = 0; |
5955 | filehdr_vaddr = 0; | |
5956 | filehdr_paddr = 0; | |
5957 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
5958 | phdrs_paddr = 0; | |
62655c7b | 5959 | hdrs_segment = NULL; |
f3520d2f | 5960 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 5961 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
5962 | { |
5963 | ++count; | |
5964 | if (p->p_type != PT_LOAD) | |
5965 | continue; | |
5966 | ||
5967 | if (m->includes_filehdr) | |
5968 | { | |
5969 | filehdr_vaddr = p->p_vaddr; | |
5970 | filehdr_paddr = p->p_paddr; | |
5971 | } | |
5972 | if (m->includes_phdrs) | |
5973 | { | |
5974 | phdrs_vaddr = p->p_vaddr; | |
5975 | phdrs_paddr = p->p_paddr; | |
5976 | if (m->includes_filehdr) | |
5977 | { | |
62655c7b | 5978 | hdrs_segment = m; |
f3520d2f AM |
5979 | phdrs_vaddr += bed->s->sizeof_ehdr; |
5980 | phdrs_paddr += bed->s->sizeof_ehdr; | |
5981 | } | |
5982 | } | |
5983 | } | |
5984 | ||
62655c7b RM |
5985 | if (hdrs_segment != NULL && link_info != NULL) |
5986 | { | |
5987 | /* There is a segment that contains both the file headers and the | |
5988 | program headers, so provide a symbol __ehdr_start pointing there. | |
5989 | A program can use this to examine itself robustly. */ | |
5990 | ||
5991 | struct elf_link_hash_entry *hash | |
5992 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5993 | FALSE, FALSE, TRUE); | |
5994 | /* If the symbol was referenced and not defined, define it. */ | |
5995 | if (hash != NULL | |
5996 | && (hash->root.type == bfd_link_hash_new | |
5997 | || hash->root.type == bfd_link_hash_undefined | |
5998 | || hash->root.type == bfd_link_hash_undefweak | |
5999 | || hash->root.type == bfd_link_hash_common)) | |
6000 | { | |
6001 | asection *s = NULL; | |
6002 | if (hdrs_segment->count != 0) | |
6003 | /* The segment contains sections, so use the first one. */ | |
6004 | s = hdrs_segment->sections[0]; | |
6005 | else | |
6006 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 6007 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
6008 | if (m->count != 0) |
6009 | { | |
6010 | s = m->sections[0]; | |
6011 | break; | |
6012 | } | |
6013 | ||
6014 | if (s != NULL) | |
6015 | { | |
6016 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
6017 | hash->root.u.def.section = s; | |
6018 | } | |
6019 | else | |
6020 | { | |
6021 | hash->root.u.def.value = filehdr_vaddr; | |
6022 | hash->root.u.def.section = bfd_abs_section_ptr; | |
6023 | } | |
6024 | ||
6025 | hash->root.type = bfd_link_hash_defined; | |
6026 | hash->def_regular = 1; | |
6027 | hash->non_elf = 0; | |
6028 | } | |
6029 | } | |
6030 | ||
12bd6957 | 6031 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 6032 | { |
129af99f | 6033 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 6034 | { |
f2731e0c | 6035 | bfd_vma start, end; |
01f7e10c | 6036 | bfd_boolean ok; |
1ea63fd2 | 6037 | |
129af99f | 6038 | if (link_info != NULL) |
8c37241b | 6039 | { |
129af99f | 6040 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
6041 | in link_info. Note that there may be padding between |
6042 | relro_start and the first RELRO section. */ | |
6043 | start = link_info->relro_start; | |
6044 | end = link_info->relro_end; | |
6045 | } | |
6046 | else if (m->count != 0) | |
6047 | { | |
6048 | if (!m->p_size_valid) | |
6049 | abort (); | |
6050 | start = m->sections[0]->vma; | |
6051 | end = start + m->p_size; | |
6052 | } | |
6053 | else | |
6054 | { | |
6055 | start = 0; | |
6056 | end = 0; | |
6057 | } | |
6058 | ||
01f7e10c | 6059 | ok = FALSE; |
f2731e0c AM |
6060 | if (start < end) |
6061 | { | |
6062 | struct elf_segment_map *lm; | |
6063 | const Elf_Internal_Phdr *lp; | |
6064 | unsigned int i; | |
6065 | ||
6066 | /* Find a LOAD segment containing a section in the RELRO | |
6067 | segment. */ | |
12bd6957 | 6068 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
6069 | lm != NULL; |
6070 | lm = lm->next, lp++) | |
8c37241b JJ |
6071 | { |
6072 | if (lp->p_type == PT_LOAD | |
3146fac4 | 6073 | && lm->count != 0 |
dbc88fc1 AM |
6074 | && (lm->sections[lm->count - 1]->vma |
6075 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
6076 | ? lm->sections[lm->count - 1]->size | |
6077 | : 0)) > start | |
f2731e0c | 6078 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6079 | break; |
6080 | } | |
f2731e0c | 6081 | |
01f7e10c | 6082 | if (lm != NULL) |
129af99f | 6083 | { |
01f7e10c AM |
6084 | /* Find the section starting the RELRO segment. */ |
6085 | for (i = 0; i < lm->count; i++) | |
6086 | { | |
6087 | asection *s = lm->sections[i]; | |
6088 | if (s->vma >= start | |
6089 | && s->vma < end | |
6090 | && s->size != 0) | |
6091 | break; | |
6092 | } | |
6093 | ||
6094 | if (i < lm->count) | |
6095 | { | |
6096 | p->p_vaddr = lm->sections[i]->vma; | |
6097 | p->p_paddr = lm->sections[i]->lma; | |
6098 | p->p_offset = lm->sections[i]->filepos; | |
6099 | p->p_memsz = end - p->p_vaddr; | |
6100 | p->p_filesz = p->p_memsz; | |
6101 | ||
6102 | /* The RELRO segment typically ends a few bytes | |
6103 | into .got.plt but other layouts are possible. | |
6104 | In cases where the end does not match any | |
6105 | loaded section (for instance is in file | |
6106 | padding), trim p_filesz back to correspond to | |
6107 | the end of loaded section contents. */ | |
6108 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6109 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6110 | ||
6111 | /* Preserve the alignment and flags if they are | |
6112 | valid. The gold linker generates RW/4 for | |
6113 | the PT_GNU_RELRO section. It is better for | |
6114 | objcopy/strip to honor these attributes | |
6115 | otherwise gdb will choke when using separate | |
6116 | debug files. */ | |
6117 | if (!m->p_align_valid) | |
6118 | p->p_align = 1; | |
6119 | if (!m->p_flags_valid) | |
6120 | p->p_flags = PF_R; | |
6121 | ok = TRUE; | |
6122 | } | |
129af99f | 6123 | } |
b84a33b5 | 6124 | } |
01f7e10c AM |
6125 | if (link_info != NULL) |
6126 | BFD_ASSERT (ok); | |
6127 | if (!ok) | |
6128 | memset (p, 0, sizeof *p); | |
129af99f | 6129 | } |
04c3a755 NS |
6130 | else if (p->p_type == PT_GNU_STACK) |
6131 | { | |
6132 | if (m->p_size_valid) | |
6133 | p->p_memsz = m->p_size; | |
6134 | } | |
129af99f AS |
6135 | else if (m->count != 0) |
6136 | { | |
e06efbf1 | 6137 | unsigned int i; |
1a9ccd70 | 6138 | |
129af99f AS |
6139 | if (p->p_type != PT_LOAD |
6140 | && (p->p_type != PT_NOTE | |
6141 | || bfd_get_format (abfd) != bfd_core)) | |
6142 | { | |
1a9ccd70 NC |
6143 | /* A user specified segment layout may include a PHDR |
6144 | segment that overlaps with a LOAD segment... */ | |
6145 | if (p->p_type == PT_PHDR) | |
6146 | { | |
6147 | m->count = 0; | |
6148 | continue; | |
6149 | } | |
6150 | ||
c86934ce NC |
6151 | if (m->includes_filehdr || m->includes_phdrs) |
6152 | { | |
b1fa9dd6 | 6153 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6154 | _bfd_error_handler |
871b3ab2 | 6155 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6156 | "and/or program header"), |
6157 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6158 | return FALSE; |
6159 | } | |
129af99f | 6160 | |
86b2281f | 6161 | p->p_filesz = 0; |
129af99f | 6162 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6163 | for (i = m->count; i-- != 0;) |
6164 | { | |
6165 | asection *sect = m->sections[i]; | |
6166 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6167 | if (hdr->sh_type != SHT_NOBITS) | |
6168 | { | |
6169 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6170 | + hdr->sh_size); | |
6171 | break; | |
6172 | } | |
6173 | } | |
129af99f AS |
6174 | } |
6175 | } | |
6176 | else if (m->includes_filehdr) | |
6177 | { | |
6178 | p->p_vaddr = filehdr_vaddr; | |
6179 | if (! m->p_paddr_valid) | |
6180 | p->p_paddr = filehdr_paddr; | |
6181 | } | |
6182 | else if (m->includes_phdrs) | |
6183 | { | |
6184 | p->p_vaddr = phdrs_vaddr; | |
6185 | if (! m->p_paddr_valid) | |
6186 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
6187 | } |
6188 | } | |
6189 | ||
12bd6957 | 6190 | elf_next_file_pos (abfd) = off; |
252b5132 | 6191 | |
b34976b6 | 6192 | return TRUE; |
252b5132 RH |
6193 | } |
6194 | ||
6a40cf0c NC |
6195 | static elf_section_list * |
6196 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6197 | { | |
6198 | for (;list != NULL; list = list->next) | |
6199 | if (list->ndx == i) | |
6200 | break; | |
6201 | return list; | |
6202 | } | |
6203 | ||
252b5132 RH |
6204 | /* Work out the file positions of all the sections. This is called by |
6205 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6206 | VMAs must be known before this is called. | |
6207 | ||
e0638f70 AM |
6208 | Reloc sections come in two flavours: Those processed specially as |
6209 | "side-channel" data attached to a section to which they apply, and | |
6210 | those that bfd doesn't process as relocations. The latter sort are | |
6211 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
6212 | consider the former sort here, unless they form part of the loadable | |
6213 | image. Reloc sections not assigned here will be handled later by | |
6214 | assign_file_positions_for_relocs. | |
252b5132 RH |
6215 | |
6216 | We also don't set the positions of the .symtab and .strtab here. */ | |
6217 | ||
b34976b6 | 6218 | static bfd_boolean |
c84fca4d AO |
6219 | assign_file_positions_except_relocs (bfd *abfd, |
6220 | struct bfd_link_info *link_info) | |
252b5132 | 6221 | { |
5c182d5f AM |
6222 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6223 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6224 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6225 | |
6226 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6227 | && bfd_get_format (abfd) != bfd_core) | |
6228 | { | |
5c182d5f AM |
6229 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6230 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6231 | Elf_Internal_Shdr **hdrpp; |
6232 | unsigned int i; | |
a485e98e | 6233 | file_ptr off; |
252b5132 RH |
6234 | |
6235 | /* Start after the ELF header. */ | |
6236 | off = i_ehdrp->e_ehsize; | |
6237 | ||
6238 | /* We are not creating an executable, which means that we are | |
6239 | not creating a program header, and that the actual order of | |
6240 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6241 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6242 | { |
6243 | Elf_Internal_Shdr *hdr; | |
6244 | ||
6245 | hdr = *hdrpp; | |
e0638f70 AM |
6246 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6247 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
6248 | || (hdr->bfd_section != NULL |
6249 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
6250 | /* Compress DWARF debug sections. */ | |
12bd6957 | 6251 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6252 | || (elf_symtab_shndx_list (abfd) != NULL |
6253 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6254 | || i == elf_strtab_sec (abfd) |
6255 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6256 | { |
6257 | hdr->sh_offset = -1; | |
252b5132 | 6258 | } |
9ad5cbcf | 6259 | else |
b34976b6 | 6260 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6261 | } |
a485e98e AM |
6262 | |
6263 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
6264 | } |
6265 | else | |
6266 | { | |
f3520d2f AM |
6267 | unsigned int alloc; |
6268 | ||
252b5132 | 6269 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6270 | assignment of sections to segments. */ |
f3520d2f AM |
6271 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6272 | return FALSE; | |
6273 | ||
6274 | /* And for non-load sections. */ | |
6275 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6276 | return FALSE; | |
6277 | ||
e36284ab AM |
6278 | if (bed->elf_backend_modify_program_headers != NULL) |
6279 | { | |
6280 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
6281 | return FALSE; | |
6282 | } | |
6283 | ||
58e7ebac | 6284 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
0e1862bb | 6285 | if (link_info != NULL && bfd_link_pie (link_info)) |
58e7ebac L |
6286 | { |
6287 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
6288 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
6289 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6290 | ||
6291 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6292 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6293 | for (; segment < end_segment; segment++) | |
6294 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6295 | p_vaddr = segment->p_vaddr; | |
6296 | ||
6297 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6298 | segments is non-zero. */ | |
6299 | if (p_vaddr) | |
6300 | i_ehdrp->e_type = ET_EXEC; | |
6301 | } | |
6302 | ||
f3520d2f | 6303 | /* Write out the program headers. */ |
6838f2be | 6304 | alloc = elf_elfheader (abfd)->e_phnum; |
1a9ccd70 NC |
6305 | if (alloc == 0) |
6306 | return TRUE; | |
6307 | ||
1a9ccd70 NC |
6308 | /* PR ld/20815 - Check that the program header segment, if present, will |
6309 | be loaded into memory. FIXME: The check below is not sufficient as | |
6310 | really all PT_LOAD segments should be checked before issuing an error | |
6311 | message. Plus the PHDR segment does not have to be the first segment | |
6312 | in the program header table. But this version of the check should | |
cd584857 NC |
6313 | catch all real world use cases. |
6314 | ||
6315 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6316 | ascending order, as per the ELF spec. But this breaks some programs, | |
6317 | including the Linux kernel. But really either the spec should be | |
07d6d2b8 | 6318 | changed or the programs updated. */ |
1a9ccd70 | 6319 | if (alloc > 1 |
cd584857 | 6320 | && tdata->phdr[0].p_type == PT_PHDR |
d00dd7dc AM |
6321 | && (bed->elf_backend_allow_non_load_phdr == NULL |
6322 | || !bed->elf_backend_allow_non_load_phdr (abfd, tdata->phdr, | |
6323 | alloc)) | |
cd584857 NC |
6324 | && tdata->phdr[1].p_type == PT_LOAD |
6325 | && (tdata->phdr[1].p_vaddr > tdata->phdr[0].p_vaddr | |
6838f2be AM |
6326 | || (tdata->phdr[1].p_vaddr + tdata->phdr[1].p_memsz |
6327 | < tdata->phdr[0].p_vaddr + tdata->phdr[0].p_memsz))) | |
1a9ccd70 NC |
6328 | { |
6329 | /* The fix for this error is usually to edit the linker script being | |
6330 | used and set up the program headers manually. Either that or | |
6331 | leave room for the headers at the start of the SECTIONS. */ | |
6838f2be AM |
6332 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" |
6333 | " by LOAD segment"), | |
1a9ccd70 | 6334 | abfd); |
1a9ccd70 NC |
6335 | return FALSE; |
6336 | } | |
6337 | ||
f3520d2f | 6338 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
cd584857 NC |
6339 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6340 | return FALSE; | |
252b5132 RH |
6341 | } |
6342 | ||
b34976b6 | 6343 | return TRUE; |
252b5132 RH |
6344 | } |
6345 | ||
b34976b6 | 6346 | static bfd_boolean |
217aa764 | 6347 | prep_headers (bfd *abfd) |
252b5132 | 6348 | { |
3d540e93 | 6349 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6350 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6351 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6352 | |
6353 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6354 | |
2b0f7ef9 | 6355 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6356 | if (shstrtab == NULL) |
b34976b6 | 6357 | return FALSE; |
252b5132 RH |
6358 | |
6359 | elf_shstrtab (abfd) = shstrtab; | |
6360 | ||
6361 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6362 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6363 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6364 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6365 | ||
6366 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6367 | i_ehdrp->e_ident[EI_DATA] = | |
6368 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6369 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6370 | ||
252b5132 RH |
6371 | if ((abfd->flags & DYNAMIC) != 0) |
6372 | i_ehdrp->e_type = ET_DYN; | |
6373 | else if ((abfd->flags & EXEC_P) != 0) | |
6374 | i_ehdrp->e_type = ET_EXEC; | |
6375 | else if (bfd_get_format (abfd) == bfd_core) | |
6376 | i_ehdrp->e_type = ET_CORE; | |
6377 | else | |
6378 | i_ehdrp->e_type = ET_REL; | |
6379 | ||
6380 | switch (bfd_get_arch (abfd)) | |
6381 | { | |
6382 | case bfd_arch_unknown: | |
6383 | i_ehdrp->e_machine = EM_NONE; | |
6384 | break; | |
aa4f99bb AO |
6385 | |
6386 | /* There used to be a long list of cases here, each one setting | |
6387 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6388 | in the corresponding bfd definition. To avoid duplication, | |
6389 | the switch was removed. Machines that need special handling | |
6390 | can generally do it in elf_backend_final_write_processing(), | |
6391 | unless they need the information earlier than the final write. | |
6392 | Such need can generally be supplied by replacing the tests for | |
6393 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6394 | default: |
9c5bfbb7 AM |
6395 | i_ehdrp->e_machine = bed->elf_machine_code; |
6396 | } | |
aa4f99bb | 6397 | |
252b5132 RH |
6398 | i_ehdrp->e_version = bed->s->ev_current; |
6399 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6400 | ||
c044fabd | 6401 | /* No program header, for now. */ |
252b5132 RH |
6402 | i_ehdrp->e_phoff = 0; |
6403 | i_ehdrp->e_phentsize = 0; | |
6404 | i_ehdrp->e_phnum = 0; | |
6405 | ||
c044fabd | 6406 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6407 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6408 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6409 | ||
c044fabd | 6410 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 6411 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
6412 | /* It all happens later. */ |
6413 | ; | |
252b5132 RH |
6414 | else |
6415 | { | |
6416 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
6417 | i_ehdrp->e_phoff = 0; |
6418 | } | |
6419 | ||
6420 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 6421 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6422 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6423 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6424 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6425 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6426 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6427 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6428 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6429 | return FALSE; |
252b5132 | 6430 | |
b34976b6 | 6431 | return TRUE; |
252b5132 RH |
6432 | } |
6433 | ||
6434 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 6435 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6436 | |
0ce398f1 L |
6437 | static bfd_boolean |
6438 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6439 | { |
6440 | file_ptr off; | |
e06efbf1 | 6441 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6442 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6443 | Elf_Internal_Ehdr *i_ehdrp; |
6444 | const struct elf_backend_data *bed; | |
252b5132 | 6445 | |
12bd6957 | 6446 | off = elf_next_file_pos (abfd); |
252b5132 | 6447 | |
e06efbf1 L |
6448 | shdrpp = elf_elfsections (abfd); |
6449 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6450 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6451 | { |
252b5132 | 6452 | shdrp = *shdrpp; |
0ce398f1 L |
6453 | if (shdrp->sh_offset == -1) |
6454 | { | |
3e19fb8f | 6455 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6456 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6457 | || shdrp->sh_type == SHT_RELA); | |
6458 | if (is_rel | |
3e19fb8f | 6459 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 L |
6460 | { |
6461 | if (!is_rel) | |
6462 | { | |
3e19fb8f L |
6463 | const char *name = sec->name; |
6464 | struct bfd_elf_section_data *d; | |
6465 | ||
0ce398f1 | 6466 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6467 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6468 | shdrp->contents)) |
6469 | return FALSE; | |
3e19fb8f L |
6470 | |
6471 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6472 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6473 | { | |
6474 | /* If section is compressed with zlib-gnu, convert | |
6475 | section name from .debug_* to .zdebug_*. */ | |
6476 | char *new_name | |
6477 | = convert_debug_to_zdebug (abfd, name); | |
6478 | if (new_name == NULL) | |
6479 | return FALSE; | |
6480 | name = new_name; | |
6481 | } | |
dd905818 | 6482 | /* Add section name to section name section. */ |
3e19fb8f L |
6483 | if (shdrp->sh_name != (unsigned int) -1) |
6484 | abort (); | |
6485 | shdrp->sh_name | |
6486 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6487 | name, FALSE); | |
6488 | d = elf_section_data (sec); | |
6489 | ||
dd905818 | 6490 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6491 | if (d->rel.hdr |
6492 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6493 | d->rel.hdr, | |
6494 | name, FALSE)) | |
6495 | return FALSE; | |
6496 | if (d->rela.hdr | |
6497 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6498 | d->rela.hdr, | |
91cb26da | 6499 | name, TRUE)) |
3e19fb8f L |
6500 | return FALSE; |
6501 | ||
0ce398f1 | 6502 | /* Update section size and contents. */ |
3e19fb8f L |
6503 | shdrp->sh_size = sec->size; |
6504 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6505 | shdrp->bfd_section->contents = NULL; |
6506 | } | |
6507 | off = _bfd_elf_assign_file_position_for_section (shdrp, | |
6508 | off, | |
6509 | TRUE); | |
6510 | } | |
6511 | } | |
252b5132 RH |
6512 | } |
6513 | ||
3e19fb8f L |
6514 | /* Place section name section after DWARF debug sections have been |
6515 | compressed. */ | |
6516 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6517 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6518 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6519 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6520 | ||
6521 | /* Place the section headers. */ | |
a485e98e AM |
6522 | i_ehdrp = elf_elfheader (abfd); |
6523 | bed = get_elf_backend_data (abfd); | |
6524 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6525 | i_ehdrp->e_shoff = off; | |
6526 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6527 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6528 | |
6529 | return TRUE; | |
252b5132 RH |
6530 | } |
6531 | ||
b34976b6 | 6532 | bfd_boolean |
217aa764 | 6533 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6534 | { |
9c5bfbb7 | 6535 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6536 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6537 | bfd_boolean failed; |
9ad5cbcf | 6538 | unsigned int count, num_sec; |
30e8ee25 | 6539 | struct elf_obj_tdata *t; |
252b5132 RH |
6540 | |
6541 | if (! abfd->output_has_begun | |
217aa764 | 6542 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6543 | return FALSE; |
db727370 JL |
6544 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6545 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6546 | sections, and modification of existing section sizes was restricted. | |
6547 | This means the ELF header, program headers and section headers can't have | |
6548 | changed. | |
6549 | If the contents of any sections has been modified, then those changes have | |
6550 | already been written to the BFD. */ | |
6551 | else if (abfd->direction == both_direction) | |
6552 | { | |
6553 | BFD_ASSERT (abfd->output_has_begun); | |
6554 | return TRUE; | |
6555 | } | |
252b5132 RH |
6556 | |
6557 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6558 | |
b34976b6 | 6559 | failed = FALSE; |
252b5132 RH |
6560 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6561 | if (failed) | |
b34976b6 | 6562 | return FALSE; |
252b5132 | 6563 | |
0ce398f1 L |
6564 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6565 | return FALSE; | |
252b5132 | 6566 | |
c044fabd | 6567 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6568 | num_sec = elf_numsections (abfd); |
6569 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6570 | { |
3e19fb8f L |
6571 | i_shdrp[count]->sh_name |
6572 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6573 | i_shdrp[count]->sh_name); | |
252b5132 | 6574 | if (bed->elf_backend_section_processing) |
75506100 MR |
6575 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6576 | return FALSE; | |
252b5132 RH |
6577 | if (i_shdrp[count]->contents) |
6578 | { | |
dc810e39 AM |
6579 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6580 | ||
252b5132 | 6581 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6582 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6583 | return FALSE; |
252b5132 RH |
6584 | } |
6585 | } | |
6586 | ||
6587 | /* Write out the section header names. */ | |
30e8ee25 | 6588 | t = elf_tdata (abfd); |
26ae6d5e | 6589 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6590 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6591 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6592 | return FALSE; |
252b5132 | 6593 | |
cc364be6 AM |
6594 | if (!(*bed->elf_backend_final_write_processing) (abfd)) |
6595 | return FALSE; | |
252b5132 | 6596 | |
ff59fc36 RM |
6597 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6598 | return FALSE; | |
6599 | ||
6600 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6601 | if (t->o->build_id.after_write_object_contents != NULL) |
6602 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6603 | |
6604 | return TRUE; | |
252b5132 RH |
6605 | } |
6606 | ||
b34976b6 | 6607 | bfd_boolean |
217aa764 | 6608 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6609 | { |
c044fabd | 6610 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6611 | return _bfd_elf_write_object_contents (abfd); |
6612 | } | |
c044fabd KH |
6613 | |
6614 | /* Given a section, search the header to find them. */ | |
6615 | ||
cb33740c | 6616 | unsigned int |
198beae2 | 6617 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6618 | { |
9c5bfbb7 | 6619 | const struct elf_backend_data *bed; |
91d6fa6a | 6620 | unsigned int sec_index; |
252b5132 | 6621 | |
9ad5cbcf AM |
6622 | if (elf_section_data (asect) != NULL |
6623 | && elf_section_data (asect)->this_idx != 0) | |
6624 | return elf_section_data (asect)->this_idx; | |
6625 | ||
6626 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6627 | sec_index = SHN_ABS; |
af746e92 | 6628 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6629 | sec_index = SHN_COMMON; |
af746e92 | 6630 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6631 | sec_index = SHN_UNDEF; |
af746e92 | 6632 | else |
91d6fa6a | 6633 | sec_index = SHN_BAD; |
252b5132 | 6634 | |
af746e92 | 6635 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6636 | if (bed->elf_backend_section_from_bfd_section) |
6637 | { | |
91d6fa6a | 6638 | int retval = sec_index; |
9ad5cbcf | 6639 | |
af746e92 AM |
6640 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6641 | return retval; | |
252b5132 RH |
6642 | } |
6643 | ||
91d6fa6a | 6644 | if (sec_index == SHN_BAD) |
af746e92 | 6645 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6646 | |
91d6fa6a | 6647 | return sec_index; |
252b5132 RH |
6648 | } |
6649 | ||
6650 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6651 | on error. */ | |
6652 | ||
6653 | int | |
217aa764 | 6654 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6655 | { |
6656 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6657 | int idx; | |
6658 | flagword flags = asym_ptr->flags; | |
6659 | ||
6660 | /* When gas creates relocations against local labels, it creates its | |
6661 | own symbol for the section, but does put the symbol into the | |
6662 | symbol chain, so udata is 0. When the linker is generating | |
6663 | relocatable output, this section symbol may be for one of the | |
6664 | input sections rather than the output section. */ | |
6665 | if (asym_ptr->udata.i == 0 | |
6666 | && (flags & BSF_SECTION_SYM) | |
6667 | && asym_ptr->section) | |
6668 | { | |
5372391b | 6669 | asection *sec; |
252b5132 RH |
6670 | int indx; |
6671 | ||
5372391b AM |
6672 | sec = asym_ptr->section; |
6673 | if (sec->owner != abfd && sec->output_section != NULL) | |
6674 | sec = sec->output_section; | |
6675 | if (sec->owner == abfd | |
6676 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6677 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6678 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6679 | } | |
6680 | ||
6681 | idx = asym_ptr->udata.i; | |
6682 | ||
6683 | if (idx == 0) | |
6684 | { | |
6685 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6686 | which is used in a relocation entry. */ |
4eca0228 | 6687 | _bfd_error_handler |
695344c0 | 6688 | /* xgettext:c-format */ |
871b3ab2 | 6689 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6690 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6691 | bfd_set_error (bfd_error_no_symbols); |
6692 | return -1; | |
6693 | } | |
6694 | ||
6695 | #if DEBUG & 4 | |
6696 | { | |
6697 | fprintf (stderr, | |
cd9af601 AM |
6698 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6699 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6700 | fflush (stderr); |
6701 | } | |
6702 | #endif | |
6703 | ||
6704 | return idx; | |
6705 | } | |
6706 | ||
84d1d650 | 6707 | /* Rewrite program header information. */ |
252b5132 | 6708 | |
b34976b6 | 6709 | static bfd_boolean |
84d1d650 | 6710 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6711 | { |
b34976b6 AM |
6712 | Elf_Internal_Ehdr *iehdr; |
6713 | struct elf_segment_map *map; | |
6714 | struct elf_segment_map *map_first; | |
6715 | struct elf_segment_map **pointer_to_map; | |
6716 | Elf_Internal_Phdr *segment; | |
6717 | asection *section; | |
6718 | unsigned int i; | |
6719 | unsigned int num_segments; | |
6720 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6721 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6722 | bfd_vma maxpagesize; |
6723 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6724 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6725 | const struct elf_backend_data *bed; |
bc67d8a6 | 6726 | |
caf47ea6 | 6727 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6728 | iehdr = elf_elfheader (ibfd); |
6729 | ||
bc67d8a6 | 6730 | map_first = NULL; |
c044fabd | 6731 | pointer_to_map = &map_first; |
252b5132 RH |
6732 | |
6733 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6734 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6735 | ||
6736 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6737 | #define SEGMENT_END(segment, start) \ |
6738 | (start + (segment->p_memsz > segment->p_filesz \ | |
6739 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6740 | |
eecdbe52 JJ |
6741 | #define SECTION_SIZE(section, segment) \ |
6742 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6743 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6744 | ? section->size : 0) |
eecdbe52 | 6745 | |
b34976b6 | 6746 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6747 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6748 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6749 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6750 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6751 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6752 | |
b34976b6 | 6753 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6754 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6755 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6756 | (section->lma >= base \ | |
beab4532 | 6757 | && (section->lma + SECTION_SIZE (section, segment) >= section->lma) \ |
eecdbe52 | 6758 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6759 | <= SEGMENT_END (segment, base))) |
252b5132 | 6760 | |
0efc80c8 L |
6761 | /* Handle PT_NOTE segment. */ |
6762 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6763 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6764 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6765 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6766 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6767 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6768 | |
0efc80c8 L |
6769 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6770 | etc. */ | |
6771 | #define IS_COREFILE_NOTE(p, s) \ | |
6772 | (IS_NOTE (p, s) \ | |
6773 | && bfd_get_format (ibfd) == bfd_core \ | |
6774 | && s->vma == 0 \ | |
6775 | && s->lma == 0) | |
6776 | ||
252b5132 RH |
6777 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6778 | linker, which generates a PT_INTERP section with p_vaddr and | |
6779 | p_memsz set to 0. */ | |
aecc8f8a AM |
6780 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6781 | (p->p_vaddr == 0 \ | |
6782 | && p->p_paddr == 0 \ | |
6783 | && p->p_memsz == 0 \ | |
6784 | && p->p_filesz > 0 \ | |
6785 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6786 | && s->size > 0 \ |
aecc8f8a | 6787 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6788 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6789 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6790 | |
bc67d8a6 NC |
6791 | /* Decide if the given section should be included in the given segment. |
6792 | A section will be included if: | |
f5ffc919 | 6793 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6794 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6795 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6796 | segment. |
bc67d8a6 | 6797 | 3. There is an output section associated with it, |
eecdbe52 | 6798 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6799 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6800 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6801 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6802 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6803 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6804 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6805 | ((((segment->p_paddr \ |
6806 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6807 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6808 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6809 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6810 | && segment->p_type != PT_GNU_STACK \ |
6811 | && (segment->p_type != PT_TLS \ | |
6812 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6813 | && (segment->p_type == PT_LOAD \ | |
6814 | || segment->p_type == PT_TLS \ | |
6815 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6816 | && (segment->p_type != PT_DYNAMIC \ | |
6817 | || SECTION_SIZE (section, segment) > 0 \ | |
6818 | || (segment->p_paddr \ | |
6819 | ? segment->p_paddr != section->lma \ | |
6820 | : segment->p_vaddr != section->vma) \ | |
6821 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
6822 | == 0)) \ | |
9933dc52 | 6823 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6824 | |
9f17e2a6 L |
6825 | /* If the output section of a section in the input segment is NULL, |
6826 | it is removed from the corresponding output segment. */ | |
6827 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6828 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6829 | && section->output_section != NULL) | |
6830 | ||
b34976b6 | 6831 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6832 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6833 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6834 | ||
6835 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6836 | their VMA address ranges and their LMA address ranges overlap. | |
6837 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6838 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6839 | to the same VMA range, but with the .data section mapped to a different | |
6840 | LMA. */ | |
aecc8f8a | 6841 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6842 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6843 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6844 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6845 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6846 | |
6847 | /* Initialise the segment mark field. */ | |
6848 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6849 | section->segment_mark = FALSE; |
bc67d8a6 | 6850 | |
5c44b38e AM |
6851 | /* The Solaris linker creates program headers in which all the |
6852 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6853 | file, we get confused. Check for this case, and if we find it | |
6854 | don't set the p_paddr_valid fields. */ | |
6855 | p_paddr_valid = FALSE; | |
6856 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6857 | i < num_segments; | |
6858 | i++, segment++) | |
6859 | if (segment->p_paddr != 0) | |
6860 | { | |
6861 | p_paddr_valid = TRUE; | |
6862 | break; | |
6863 | } | |
6864 | ||
252b5132 | 6865 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6866 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6867 | in the loadable segments. These can be created by weird |
aecc8f8a | 6868 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6869 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6870 | i < num_segments; | |
c044fabd | 6871 | i++, segment++) |
252b5132 | 6872 | { |
252b5132 | 6873 | unsigned int j; |
c044fabd | 6874 | Elf_Internal_Phdr *segment2; |
252b5132 | 6875 | |
aecc8f8a AM |
6876 | if (segment->p_type == PT_INTERP) |
6877 | for (section = ibfd->sections; section; section = section->next) | |
6878 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6879 | { | |
6880 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6881 | assignment code will work. */ |
aecc8f8a AM |
6882 | segment->p_vaddr = section->vma; |
6883 | break; | |
6884 | } | |
6885 | ||
bc67d8a6 | 6886 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6887 | { |
6888 | /* Remove PT_GNU_RELRO segment. */ | |
6889 | if (segment->p_type == PT_GNU_RELRO) | |
6890 | segment->p_type = PT_NULL; | |
6891 | continue; | |
6892 | } | |
c044fabd | 6893 | |
bc67d8a6 | 6894 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6895 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6896 | { |
6897 | bfd_signed_vma extra_length; | |
c044fabd | 6898 | |
bc67d8a6 | 6899 | if (segment2->p_type != PT_LOAD |
0067a569 | 6900 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6901 | continue; |
c044fabd | 6902 | |
bc67d8a6 NC |
6903 | /* Merge the two segments together. */ |
6904 | if (segment2->p_vaddr < segment->p_vaddr) | |
6905 | { | |
c044fabd | 6906 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6907 | SEGMENT. */ |
0067a569 AM |
6908 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6909 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6910 | |
bc67d8a6 NC |
6911 | if (extra_length > 0) |
6912 | { | |
0067a569 | 6913 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6914 | segment2->p_filesz += extra_length; |
6915 | } | |
c044fabd | 6916 | |
bc67d8a6 | 6917 | segment->p_type = PT_NULL; |
c044fabd | 6918 | |
bc67d8a6 NC |
6919 | /* Since we have deleted P we must restart the outer loop. */ |
6920 | i = 0; | |
6921 | segment = elf_tdata (ibfd)->phdr; | |
6922 | break; | |
6923 | } | |
6924 | else | |
6925 | { | |
c044fabd | 6926 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6927 | SEGMENT2. */ |
0067a569 AM |
6928 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6929 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6930 | |
bc67d8a6 NC |
6931 | if (extra_length > 0) |
6932 | { | |
0067a569 | 6933 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
6934 | segment->p_filesz += extra_length; |
6935 | } | |
c044fabd | 6936 | |
bc67d8a6 NC |
6937 | segment2->p_type = PT_NULL; |
6938 | } | |
6939 | } | |
6940 | } | |
c044fabd | 6941 | |
bc67d8a6 NC |
6942 | /* The second scan attempts to assign sections to segments. */ |
6943 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6944 | i < num_segments; | |
0067a569 | 6945 | i++, segment++) |
bc67d8a6 | 6946 | { |
0067a569 AM |
6947 | unsigned int section_count; |
6948 | asection **sections; | |
6949 | asection *output_section; | |
6950 | unsigned int isec; | |
9933dc52 AM |
6951 | asection *matching_lma; |
6952 | asection *suggested_lma; | |
0067a569 | 6953 | unsigned int j; |
dc810e39 | 6954 | bfd_size_type amt; |
0067a569 | 6955 | asection *first_section; |
bc67d8a6 NC |
6956 | |
6957 | if (segment->p_type == PT_NULL) | |
6958 | continue; | |
c044fabd | 6959 | |
9f17e2a6 | 6960 | first_section = NULL; |
bc67d8a6 | 6961 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
6962 | for (section = ibfd->sections, section_count = 0; |
6963 | section != NULL; | |
6964 | section = section->next) | |
9f17e2a6 L |
6965 | { |
6966 | /* Find the first section in the input segment, which may be | |
6967 | removed from the corresponding output segment. */ | |
6968 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
6969 | { | |
6970 | if (first_section == NULL) | |
6971 | first_section = section; | |
6972 | if (section->output_section != NULL) | |
6973 | ++section_count; | |
6974 | } | |
6975 | } | |
811072d8 | 6976 | |
b5f852ea NC |
6977 | /* Allocate a segment map big enough to contain |
6978 | all of the sections we have selected. */ | |
00bee008 AM |
6979 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
6980 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 6981 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6982 | if (map == NULL) |
b34976b6 | 6983 | return FALSE; |
252b5132 RH |
6984 | |
6985 | /* Initialise the fields of the segment map. Default to | |
6986 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
6987 | map->next = NULL; |
6988 | map->p_type = segment->p_type; | |
6989 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 6990 | map->p_flags_valid = 1; |
55d55ac7 | 6991 | |
9f17e2a6 L |
6992 | /* If the first section in the input segment is removed, there is |
6993 | no need to preserve segment physical address in the corresponding | |
6994 | output segment. */ | |
945c025a | 6995 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
6996 | { |
6997 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 6998 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 6999 | } |
252b5132 RH |
7000 | |
7001 | /* Determine if this segment contains the ELF file header | |
7002 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
7003 | map->includes_filehdr = (segment->p_offset == 0 |
7004 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 7005 | map->includes_phdrs = 0; |
252b5132 | 7006 | |
0067a569 | 7007 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 7008 | { |
bc67d8a6 NC |
7009 | map->includes_phdrs = |
7010 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7011 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
7012 | >= ((bfd_vma) iehdr->e_phoff |
7013 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 7014 | |
bc67d8a6 | 7015 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 7016 | phdr_included = TRUE; |
252b5132 RH |
7017 | } |
7018 | ||
bc67d8a6 | 7019 | if (section_count == 0) |
252b5132 RH |
7020 | { |
7021 | /* Special segments, such as the PT_PHDR segment, may contain | |
7022 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 7023 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 7024 | a warning is produced. |
f98450c6 NC |
7025 | There is however the valid use case of embedded systems which |
7026 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
7027 | flash memory with zeros. No warning is shown for that case. */ | |
7028 | if (segment->p_type == PT_LOAD | |
7029 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
7030 | /* xgettext:c-format */ | |
9793eb77 AM |
7031 | _bfd_error_handler |
7032 | (_("%pB: warning: empty loadable segment detected" | |
7033 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
7034 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 7035 | |
5d695627 | 7036 | map->p_vaddr_offset = segment->p_vaddr; |
bc67d8a6 | 7037 | map->count = 0; |
c044fabd KH |
7038 | *pointer_to_map = map; |
7039 | pointer_to_map = &map->next; | |
252b5132 RH |
7040 | |
7041 | continue; | |
7042 | } | |
7043 | ||
7044 | /* Now scan the sections in the input BFD again and attempt | |
7045 | to add their corresponding output sections to the segment map. | |
7046 | The problem here is how to handle an output section which has | |
7047 | been moved (ie had its LMA changed). There are four possibilities: | |
7048 | ||
7049 | 1. None of the sections have been moved. | |
7050 | In this case we can continue to use the segment LMA from the | |
7051 | input BFD. | |
7052 | ||
7053 | 2. All of the sections have been moved by the same amount. | |
7054 | In this case we can change the segment's LMA to match the LMA | |
7055 | of the first section. | |
7056 | ||
7057 | 3. Some of the sections have been moved, others have not. | |
7058 | In this case those sections which have not been moved can be | |
7059 | placed in the current segment which will have to have its size, | |
7060 | and possibly its LMA changed, and a new segment or segments will | |
7061 | have to be created to contain the other sections. | |
7062 | ||
b5f852ea | 7063 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
7064 | In this case we can change the segment's LMA to match the LMA |
7065 | of the first section and we will have to create a new segment | |
7066 | or segments to contain the other sections. | |
7067 | ||
7068 | In order to save time, we allocate an array to hold the section | |
7069 | pointers that we are interested in. As these sections get assigned | |
7070 | to a segment, they are removed from this array. */ | |
7071 | ||
a50b1753 | 7072 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 7073 | if (sections == NULL) |
b34976b6 | 7074 | return FALSE; |
252b5132 RH |
7075 | |
7076 | /* Step One: Scan for segment vs section LMA conflicts. | |
7077 | Also add the sections to the section array allocated above. | |
7078 | Also add the sections to the current segment. In the common | |
7079 | case, where the sections have not been moved, this means that | |
7080 | we have completely filled the segment, and there is nothing | |
7081 | more to do. */ | |
252b5132 | 7082 | isec = 0; |
9933dc52 AM |
7083 | matching_lma = NULL; |
7084 | suggested_lma = NULL; | |
252b5132 | 7085 | |
461c4b2e | 7086 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7087 | section != NULL; |
7088 | section = section->next) | |
252b5132 | 7089 | { |
caf47ea6 | 7090 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 7091 | { |
bc67d8a6 NC |
7092 | output_section = section->output_section; |
7093 | ||
0067a569 | 7094 | sections[j++] = section; |
252b5132 RH |
7095 | |
7096 | /* The Solaris native linker always sets p_paddr to 0. | |
7097 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7098 | correct value. Note - some backends require that |
7099 | p_paddr be left as zero. */ | |
5c44b38e | 7100 | if (!p_paddr_valid |
4455705d | 7101 | && segment->p_vaddr != 0 |
0067a569 | 7102 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7103 | && isec == 0 |
bc67d8a6 | 7104 | && output_section->lma != 0 |
9933dc52 AM |
7105 | && (align_power (segment->p_vaddr |
7106 | + (map->includes_filehdr | |
7107 | ? iehdr->e_ehsize : 0) | |
7108 | + (map->includes_phdrs | |
7109 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7110 | : 0), | |
7111 | output_section->alignment_power) | |
7112 | == output_section->vma)) | |
bc67d8a6 | 7113 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7114 | |
7115 | /* Match up the physical address of the segment with the | |
7116 | LMA address of the output section. */ | |
bc67d8a6 | 7117 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 7118 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
7119 | || (bed->want_p_paddr_set_to_zero |
7120 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 7121 | { |
9933dc52 AM |
7122 | if (matching_lma == NULL |
7123 | || output_section->lma < matching_lma->lma) | |
7124 | matching_lma = output_section; | |
252b5132 RH |
7125 | |
7126 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7127 | then it does not overlap any other section within that |
252b5132 | 7128 | segment. */ |
0067a569 AM |
7129 | map->sections[isec++] = output_section; |
7130 | } | |
9933dc52 AM |
7131 | else if (suggested_lma == NULL) |
7132 | suggested_lma = output_section; | |
147d51c2 L |
7133 | |
7134 | if (j == section_count) | |
7135 | break; | |
252b5132 RH |
7136 | } |
7137 | } | |
7138 | ||
bc67d8a6 | 7139 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7140 | |
7141 | /* Step Two: Adjust the physical address of the current segment, | |
7142 | if necessary. */ | |
bc67d8a6 | 7143 | if (isec == section_count) |
252b5132 RH |
7144 | { |
7145 | /* All of the sections fitted within the segment as currently | |
7146 | specified. This is the default case. Add the segment to | |
7147 | the list of built segments and carry on to process the next | |
7148 | program header in the input BFD. */ | |
bc67d8a6 | 7149 | map->count = section_count; |
c044fabd KH |
7150 | *pointer_to_map = map; |
7151 | pointer_to_map = &map->next; | |
08a40648 | 7152 | |
5c44b38e AM |
7153 | if (p_paddr_valid |
7154 | && !bed->want_p_paddr_set_to_zero | |
9933dc52 | 7155 | && matching_lma->lma != map->p_paddr |
5c44b38e AM |
7156 | && !map->includes_filehdr |
7157 | && !map->includes_phdrs) | |
3271a814 NS |
7158 | /* There is some padding before the first section in the |
7159 | segment. So, we must account for that in the output | |
7160 | segment's vma. */ | |
5d695627 | 7161 | map->p_vaddr_offset = map->p_paddr - matching_lma->lma; |
08a40648 | 7162 | |
252b5132 RH |
7163 | free (sections); |
7164 | continue; | |
7165 | } | |
252b5132 RH |
7166 | else |
7167 | { | |
9933dc52 AM |
7168 | /* Change the current segment's physical address to match |
7169 | the LMA of the first section that fitted, or if no | |
7170 | section fitted, the first section. */ | |
7171 | if (matching_lma == NULL) | |
7172 | matching_lma = suggested_lma; | |
7173 | ||
7174 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7175 | |
bc67d8a6 NC |
7176 | /* Offset the segment physical address from the lma |
7177 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7178 | if (map->includes_phdrs) |
010c8431 | 7179 | { |
9933dc52 AM |
7180 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7181 | ||
7182 | /* iehdr->e_phnum is just an estimate of the number | |
7183 | of program headers that we will need. Make a note | |
7184 | here of the number we used and the segment we chose | |
7185 | to hold these headers, so that we can adjust the | |
7186 | offset when we know the correct value. */ | |
7187 | phdr_adjust_num = iehdr->e_phnum; | |
7188 | phdr_adjust_seg = map; | |
010c8431 | 7189 | } |
252b5132 | 7190 | |
9933dc52 | 7191 | if (map->includes_filehdr) |
bc67d8a6 | 7192 | { |
9933dc52 AM |
7193 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7194 | map->p_paddr -= iehdr->e_ehsize; | |
7195 | /* We've subtracted off the size of headers from the | |
7196 | first section lma, but there may have been some | |
7197 | alignment padding before that section too. Try to | |
7198 | account for that by adjusting the segment lma down to | |
7199 | the same alignment. */ | |
7200 | if (segment->p_align != 0 && segment->p_align < align) | |
7201 | align = segment->p_align; | |
7202 | map->p_paddr &= -align; | |
bc67d8a6 | 7203 | } |
252b5132 RH |
7204 | } |
7205 | ||
7206 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7207 | those that fit to the current segment and removing them from the |
252b5132 RH |
7208 | sections array; but making sure not to leave large gaps. Once all |
7209 | possible sections have been assigned to the current segment it is | |
7210 | added to the list of built segments and if sections still remain | |
7211 | to be assigned, a new segment is constructed before repeating | |
7212 | the loop. */ | |
7213 | isec = 0; | |
7214 | do | |
7215 | { | |
bc67d8a6 | 7216 | map->count = 0; |
9933dc52 | 7217 | suggested_lma = NULL; |
252b5132 RH |
7218 | |
7219 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7220 | for (j = 0; j < section_count; j++) |
252b5132 | 7221 | { |
bc67d8a6 | 7222 | section = sections[j]; |
252b5132 | 7223 | |
bc67d8a6 | 7224 | if (section == NULL) |
252b5132 RH |
7225 | continue; |
7226 | ||
bc67d8a6 | 7227 | output_section = section->output_section; |
252b5132 | 7228 | |
bc67d8a6 | 7229 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7230 | |
bc67d8a6 NC |
7231 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7232 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7233 | { |
bc67d8a6 | 7234 | if (map->count == 0) |
252b5132 RH |
7235 | { |
7236 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7237 | the beginning of the segment, then something is |
7238 | wrong. */ | |
9933dc52 AM |
7239 | if (align_power (map->p_paddr |
7240 | + (map->includes_filehdr | |
7241 | ? iehdr->e_ehsize : 0) | |
7242 | + (map->includes_phdrs | |
7243 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7244 | : 0), | |
7245 | output_section->alignment_power) | |
7246 | != output_section->lma) | |
252b5132 RH |
7247 | abort (); |
7248 | } | |
7249 | else | |
7250 | { | |
0067a569 | 7251 | asection *prev_sec; |
252b5132 | 7252 | |
bc67d8a6 | 7253 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7254 | |
7255 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7256 | and the start of this section is more than |
7257 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7258 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7259 | maxpagesize) |
caf47ea6 | 7260 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7261 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7262 | > output_section->lma)) |
252b5132 | 7263 | { |
9933dc52 AM |
7264 | if (suggested_lma == NULL) |
7265 | suggested_lma = output_section; | |
252b5132 RH |
7266 | |
7267 | continue; | |
7268 | } | |
7269 | } | |
7270 | ||
bc67d8a6 | 7271 | map->sections[map->count++] = output_section; |
252b5132 RH |
7272 | ++isec; |
7273 | sections[j] = NULL; | |
9933dc52 AM |
7274 | if (segment->p_type == PT_LOAD) |
7275 | section->segment_mark = TRUE; | |
0067a569 | 7276 | } |
9933dc52 AM |
7277 | else if (suggested_lma == NULL) |
7278 | suggested_lma = output_section; | |
252b5132 RH |
7279 | } |
7280 | ||
beab4532 NC |
7281 | /* PR 23932. A corrupt input file may contain sections that cannot |
7282 | be assigned to any segment - because for example they have a | |
7283 | negative size - or segments that do not contain any sections. */ | |
7284 | if (map->count == 0) | |
7285 | { | |
7286 | bfd_set_error (bfd_error_bad_value); | |
7287 | free (sections); | |
7288 | return FALSE; | |
7289 | } | |
252b5132 RH |
7290 | |
7291 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7292 | *pointer_to_map = map; |
7293 | pointer_to_map = &map->next; | |
252b5132 | 7294 | |
bc67d8a6 | 7295 | if (isec < section_count) |
252b5132 RH |
7296 | { |
7297 | /* We still have not allocated all of the sections to | |
7298 | segments. Create a new segment here, initialise it | |
7299 | and carry on looping. */ | |
00bee008 AM |
7300 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7301 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
5964fc3a | 7302 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7303 | if (map == NULL) |
5ed6aba4 NC |
7304 | { |
7305 | free (sections); | |
7306 | return FALSE; | |
7307 | } | |
252b5132 RH |
7308 | |
7309 | /* Initialise the fields of the segment map. Set the physical | |
7310 | physical address to the LMA of the first section that has | |
7311 | not yet been assigned. */ | |
0067a569 AM |
7312 | map->next = NULL; |
7313 | map->p_type = segment->p_type; | |
7314 | map->p_flags = segment->p_flags; | |
7315 | map->p_flags_valid = 1; | |
9933dc52 | 7316 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7317 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7318 | map->includes_filehdr = 0; |
0067a569 | 7319 | map->includes_phdrs = 0; |
252b5132 RH |
7320 | } |
7321 | } | |
bc67d8a6 | 7322 | while (isec < section_count); |
252b5132 RH |
7323 | |
7324 | free (sections); | |
7325 | } | |
7326 | ||
12bd6957 | 7327 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7328 | |
7329 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7330 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7331 | the offset if necessary. */ |
7332 | if (phdr_adjust_seg != NULL) | |
7333 | { | |
7334 | unsigned int count; | |
c044fabd | 7335 | |
bc67d8a6 | 7336 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7337 | count++; |
252b5132 | 7338 | |
bc67d8a6 NC |
7339 | if (count > phdr_adjust_num) |
7340 | phdr_adjust_seg->p_paddr | |
7341 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7342 | |
7343 | for (map = map_first; map != NULL; map = map->next) | |
7344 | if (map->p_type == PT_PHDR) | |
7345 | { | |
7346 | bfd_vma adjust | |
7347 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7348 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7349 | break; | |
7350 | } | |
bc67d8a6 | 7351 | } |
c044fabd | 7352 | |
bc67d8a6 | 7353 | #undef SEGMENT_END |
eecdbe52 | 7354 | #undef SECTION_SIZE |
bc67d8a6 NC |
7355 | #undef IS_CONTAINED_BY_VMA |
7356 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7357 | #undef IS_NOTE |
252b5132 | 7358 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7359 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7360 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7361 | #undef INCLUDE_SECTION_IN_SEGMENT |
7362 | #undef SEGMENT_AFTER_SEGMENT | |
7363 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7364 | return TRUE; |
252b5132 RH |
7365 | } |
7366 | ||
84d1d650 L |
7367 | /* Copy ELF program header information. */ |
7368 | ||
7369 | static bfd_boolean | |
7370 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7371 | { | |
7372 | Elf_Internal_Ehdr *iehdr; | |
7373 | struct elf_segment_map *map; | |
7374 | struct elf_segment_map *map_first; | |
7375 | struct elf_segment_map **pointer_to_map; | |
7376 | Elf_Internal_Phdr *segment; | |
7377 | unsigned int i; | |
7378 | unsigned int num_segments; | |
7379 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7380 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7381 | |
7382 | iehdr = elf_elfheader (ibfd); | |
7383 | ||
7384 | map_first = NULL; | |
7385 | pointer_to_map = &map_first; | |
7386 | ||
88967714 AM |
7387 | /* If all the segment p_paddr fields are zero, don't set |
7388 | map->p_paddr_valid. */ | |
7389 | p_paddr_valid = FALSE; | |
84d1d650 | 7390 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7391 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7392 | i < num_segments; | |
7393 | i++, segment++) | |
7394 | if (segment->p_paddr != 0) | |
7395 | { | |
7396 | p_paddr_valid = TRUE; | |
7397 | break; | |
7398 | } | |
7399 | ||
84d1d650 L |
7400 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7401 | i < num_segments; | |
7402 | i++, segment++) | |
7403 | { | |
7404 | asection *section; | |
7405 | unsigned int section_count; | |
7406 | bfd_size_type amt; | |
7407 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 7408 | asection *first_section = NULL; |
a76e6f2f | 7409 | asection *lowest_section; |
2542e49e | 7410 | bfd_boolean no_contents = TRUE; |
84d1d650 | 7411 | |
84d1d650 L |
7412 | /* Compute how many sections are in this segment. */ |
7413 | for (section = ibfd->sections, section_count = 0; | |
7414 | section != NULL; | |
7415 | section = section->next) | |
7416 | { | |
7417 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7418 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7419 | { |
a76e6f2f AM |
7420 | if (first_section == NULL) |
7421 | first_section = section; | |
2542e49e JL |
7422 | if (elf_section_type (section) != SHT_NOBITS) |
7423 | no_contents = FALSE; | |
3271a814 NS |
7424 | section_count++; |
7425 | } | |
84d1d650 L |
7426 | } |
7427 | ||
7428 | /* Allocate a segment map big enough to contain | |
7429 | all of the sections we have selected. */ | |
00bee008 AM |
7430 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7431 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 7432 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7433 | if (map == NULL) |
7434 | return FALSE; | |
7435 | ||
7436 | /* Initialize the fields of the output segment map with the | |
7437 | input segment. */ | |
7438 | map->next = NULL; | |
7439 | map->p_type = segment->p_type; | |
7440 | map->p_flags = segment->p_flags; | |
7441 | map->p_flags_valid = 1; | |
7442 | map->p_paddr = segment->p_paddr; | |
88967714 | 7443 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7444 | map->p_align = segment->p_align; |
7445 | map->p_align_valid = 1; | |
3271a814 | 7446 | map->p_vaddr_offset = 0; |
84d1d650 | 7447 | |
04c3a755 NS |
7448 | if (map->p_type == PT_GNU_RELRO |
7449 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7450 | { |
7451 | /* The PT_GNU_RELRO segment may contain the first a few | |
7452 | bytes in the .got.plt section even if the whole .got.plt | |
7453 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7454 | change the size of the PT_GNU_RELRO segment. |
7455 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7456 | systems. */ | |
9433b9b1 | 7457 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7458 | map->p_size_valid = 1; |
7459 | } | |
7460 | ||
84d1d650 L |
7461 | /* Determine if this segment contains the ELF file header |
7462 | and if it contains the program headers themselves. */ | |
7463 | map->includes_filehdr = (segment->p_offset == 0 | |
7464 | && segment->p_filesz >= iehdr->e_ehsize); | |
7465 | ||
7466 | map->includes_phdrs = 0; | |
7467 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7468 | { | |
7469 | map->includes_phdrs = | |
7470 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7471 | && (segment->p_offset + segment->p_filesz | |
7472 | >= ((bfd_vma) iehdr->e_phoff | |
7473 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7474 | ||
7475 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7476 | phdr_included = TRUE; | |
7477 | } | |
7478 | ||
bbefd0a9 | 7479 | lowest_section = NULL; |
84d1d650 L |
7480 | if (section_count != 0) |
7481 | { | |
7482 | unsigned int isec = 0; | |
7483 | ||
53020534 | 7484 | for (section = first_section; |
84d1d650 L |
7485 | section != NULL; |
7486 | section = section->next) | |
7487 | { | |
7488 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7489 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7490 | { |
7491 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7492 | if ((section->flags & SEC_ALLOC) != 0) |
7493 | { | |
7494 | bfd_vma seg_off; | |
7495 | ||
bbefd0a9 AM |
7496 | if (lowest_section == NULL |
7497 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7498 | lowest_section = section; |
7499 | ||
a76e6f2f AM |
7500 | /* Section lmas are set up from PT_LOAD header |
7501 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7502 | If this header has a p_paddr that disagrees | |
7503 | with the section lma, flag the p_paddr as | |
7504 | invalid. */ | |
7505 | if ((section->flags & SEC_LOAD) != 0) | |
7506 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7507 | else | |
7508 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7509 | if (section->lma - segment->p_paddr != seg_off) | |
7510 | map->p_paddr_valid = FALSE; | |
7511 | } | |
53020534 L |
7512 | if (isec == section_count) |
7513 | break; | |
7514 | } | |
84d1d650 L |
7515 | } |
7516 | } | |
7517 | ||
a76e6f2f | 7518 | if (map->includes_filehdr && lowest_section != NULL) |
2542e49e JL |
7519 | { |
7520 | /* Try to keep the space used by the headers plus any | |
7521 | padding fixed. If there are sections with file contents | |
7522 | in this segment then the lowest sh_offset is the best | |
7523 | guess. Otherwise the segment only has file contents for | |
7524 | the headers, and p_filesz is the best guess. */ | |
7525 | if (no_contents) | |
7526 | map->header_size = segment->p_filesz; | |
7527 | else | |
7528 | map->header_size = lowest_section->filepos; | |
7529 | } | |
d324f6d6 | 7530 | |
5d695627 AM |
7531 | if (section_count == 0) |
7532 | map->p_vaddr_offset = segment->p_vaddr; | |
7533 | else if (!map->includes_phdrs | |
7534 | && !map->includes_filehdr | |
7535 | && map->p_paddr_valid) | |
7536 | /* Account for padding before the first section. */ | |
7537 | map->p_vaddr_offset = (segment->p_paddr | |
7538 | - (lowest_section ? lowest_section->lma : 0)); | |
a76e6f2f | 7539 | |
84d1d650 L |
7540 | map->count = section_count; |
7541 | *pointer_to_map = map; | |
7542 | pointer_to_map = &map->next; | |
7543 | } | |
7544 | ||
12bd6957 | 7545 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7546 | return TRUE; |
7547 | } | |
7548 | ||
7549 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7550 | information. */ | |
7551 | ||
7552 | static bfd_boolean | |
7553 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7554 | { | |
84d1d650 L |
7555 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7556 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7557 | return TRUE; | |
7558 | ||
7559 | if (elf_tdata (ibfd)->phdr == NULL) | |
7560 | return TRUE; | |
7561 | ||
7562 | if (ibfd->xvec == obfd->xvec) | |
7563 | { | |
cb3ff1e5 NC |
7564 | /* Check to see if any sections in the input BFD |
7565 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7566 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7567 | asection *section, *osec; |
7568 | unsigned int i, num_segments; | |
7569 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7570 | const struct elf_backend_data *bed; |
7571 | ||
7572 | bed = get_elf_backend_data (ibfd); | |
7573 | ||
7574 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7575 | if (bed->want_p_paddr_set_to_zero) | |
7576 | goto rewrite; | |
84d1d650 L |
7577 | |
7578 | /* Initialize the segment mark field. */ | |
7579 | for (section = obfd->sections; section != NULL; | |
7580 | section = section->next) | |
7581 | section->segment_mark = FALSE; | |
7582 | ||
7583 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7584 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7585 | i < num_segments; | |
7586 | i++, segment++) | |
7587 | { | |
5f6999aa NC |
7588 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7589 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7590 | which severly confuses things, so always regenerate the segment | |
7591 | map in this case. */ | |
7592 | if (segment->p_paddr == 0 | |
7593 | && segment->p_memsz == 0 | |
7594 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7595 | goto rewrite; |
5f6999aa | 7596 | |
84d1d650 L |
7597 | for (section = ibfd->sections; |
7598 | section != NULL; section = section->next) | |
7599 | { | |
7600 | /* We mark the output section so that we know it comes | |
7601 | from the input BFD. */ | |
7602 | osec = section->output_section; | |
7603 | if (osec) | |
7604 | osec->segment_mark = TRUE; | |
7605 | ||
7606 | /* Check if this section is covered by the segment. */ | |
7607 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7608 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7609 | { |
7610 | /* FIXME: Check if its output section is changed or | |
7611 | removed. What else do we need to check? */ | |
7612 | if (osec == NULL | |
7613 | || section->flags != osec->flags | |
7614 | || section->lma != osec->lma | |
7615 | || section->vma != osec->vma | |
7616 | || section->size != osec->size | |
7617 | || section->rawsize != osec->rawsize | |
7618 | || section->alignment_power != osec->alignment_power) | |
7619 | goto rewrite; | |
7620 | } | |
7621 | } | |
7622 | } | |
7623 | ||
cb3ff1e5 | 7624 | /* Check to see if any output section do not come from the |
84d1d650 L |
7625 | input BFD. */ |
7626 | for (section = obfd->sections; section != NULL; | |
7627 | section = section->next) | |
7628 | { | |
535b785f | 7629 | if (!section->segment_mark) |
84d1d650 L |
7630 | goto rewrite; |
7631 | else | |
7632 | section->segment_mark = FALSE; | |
7633 | } | |
7634 | ||
7635 | return copy_elf_program_header (ibfd, obfd); | |
7636 | } | |
7637 | ||
7638 | rewrite: | |
f1d85785 L |
7639 | if (ibfd->xvec == obfd->xvec) |
7640 | { | |
7641 | /* When rewriting program header, set the output maxpagesize to | |
7642 | the maximum alignment of input PT_LOAD segments. */ | |
7643 | Elf_Internal_Phdr *segment; | |
7644 | unsigned int i; | |
7645 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7646 | bfd_vma maxpagesize = 0; | |
7647 | ||
7648 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7649 | i < num_segments; | |
7650 | i++, segment++) | |
7651 | if (segment->p_type == PT_LOAD | |
7652 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7653 | { |
7654 | /* PR 17512: file: f17299af. */ | |
7655 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7656 | /* xgettext:c-format */ |
2dcf00ce AM |
7657 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7658 | PRIx64 " is too large"), | |
7659 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7660 | else |
7661 | maxpagesize = segment->p_align; | |
7662 | } | |
f1d85785 L |
7663 | |
7664 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7665 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7666 | } | |
7667 | ||
84d1d650 L |
7668 | return rewrite_elf_program_header (ibfd, obfd); |
7669 | } | |
7670 | ||
ccd2ec6a L |
7671 | /* Initialize private output section information from input section. */ |
7672 | ||
7673 | bfd_boolean | |
7674 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7675 | asection *isec, | |
7676 | bfd *obfd, | |
7677 | asection *osec, | |
7678 | struct bfd_link_info *link_info) | |
7679 | ||
7680 | { | |
7681 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7682 | bfd_boolean final_link = (link_info != NULL |
7683 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7684 | |
7685 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7686 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7687 | return TRUE; | |
7688 | ||
ba85c43e NC |
7689 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7690 | ||
dfa7b0b8 AM |
7691 | /* For objcopy and relocatable link, don't copy the output ELF |
7692 | section type from input if the output BFD section flags have been | |
7693 | set to something different. For a final link allow some flags | |
7694 | that the linker clears to differ. */ | |
42bb2e33 | 7695 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7696 | && (osec->flags == isec->flags |
7697 | || (final_link | |
7698 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7699 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7700 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7701 | |
7702 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7703 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7704 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7705 | |
a91e1603 | 7706 | /* Copy sh_info from input for mbind section. */ |
df3a023b AM |
7707 | if ((elf_tdata (ibfd)->has_gnu_osabi & elf_gnu_osabi_mbind) != 0 |
7708 | && elf_section_flags (isec) & SHF_GNU_MBIND) | |
a91e1603 L |
7709 | elf_section_data (osec)->this_hdr.sh_info |
7710 | = elf_section_data (isec)->this_hdr.sh_info; | |
7711 | ||
ccd2ec6a L |
7712 | /* Set things up for objcopy and relocatable link. The output |
7713 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7714 | to the input group members. Ignore linker created group section. | |
7715 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7716 | if ((link_info == NULL |
7717 | || !link_info->resolve_section_groups) | |
7718 | && (elf_sec_group (isec) == NULL | |
7719 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7720 | { |
7bdf4127 AB |
7721 | if (elf_section_flags (isec) & SHF_GROUP) |
7722 | elf_section_flags (osec) |= SHF_GROUP; | |
7723 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7724 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7725 | } |
7726 | ||
7bdf4127 AB |
7727 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7728 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7729 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7730 | & SHF_COMPRESSED); | |
7731 | ||
ccd2ec6a L |
7732 | ihdr = &elf_section_data (isec)->this_hdr; |
7733 | ||
7734 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7735 | don't use the output section of the linked-to section since it | |
7736 | may be NULL at this point. */ | |
7737 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7738 | { | |
7739 | ohdr = &elf_section_data (osec)->this_hdr; | |
7740 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7741 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7742 | } | |
7743 | ||
7744 | osec->use_rela_p = isec->use_rela_p; | |
7745 | ||
7746 | return TRUE; | |
7747 | } | |
7748 | ||
252b5132 RH |
7749 | /* Copy private section information. This copies over the entsize |
7750 | field, and sometimes the info field. */ | |
7751 | ||
b34976b6 | 7752 | bfd_boolean |
217aa764 AM |
7753 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7754 | asection *isec, | |
7755 | bfd *obfd, | |
7756 | asection *osec) | |
252b5132 RH |
7757 | { |
7758 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7759 | ||
7760 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7761 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7762 | return TRUE; |
252b5132 | 7763 | |
252b5132 RH |
7764 | ihdr = &elf_section_data (isec)->this_hdr; |
7765 | ohdr = &elf_section_data (osec)->this_hdr; | |
7766 | ||
7767 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7768 | ||
7769 | if (ihdr->sh_type == SHT_SYMTAB | |
7770 | || ihdr->sh_type == SHT_DYNSYM | |
7771 | || ihdr->sh_type == SHT_GNU_verneed | |
7772 | || ihdr->sh_type == SHT_GNU_verdef) | |
7773 | ohdr->sh_info = ihdr->sh_info; | |
7774 | ||
ccd2ec6a L |
7775 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7776 | NULL); | |
252b5132 RH |
7777 | } |
7778 | ||
d0bf826b AM |
7779 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7780 | necessary if we are removing either the SHT_GROUP section or any of | |
7781 | the group member sections. DISCARDED is the value that a section's | |
7782 | output_section has if the section will be discarded, NULL when this | |
7783 | function is called from objcopy, bfd_abs_section_ptr when called | |
7784 | from the linker. */ | |
80fccad2 BW |
7785 | |
7786 | bfd_boolean | |
d0bf826b | 7787 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7788 | { |
30288845 AM |
7789 | asection *isec; |
7790 | ||
30288845 | 7791 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7792 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7793 | { |
7794 | asection *first = elf_next_in_group (isec); | |
7795 | asection *s = first; | |
d0bf826b AM |
7796 | bfd_size_type removed = 0; |
7797 | ||
30288845 AM |
7798 | while (s != NULL) |
7799 | { | |
415f38a6 AM |
7800 | /* If this member section is being output but the |
7801 | SHT_GROUP section is not, then clear the group info | |
7802 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7803 | if (s->output_section != discarded |
7804 | && isec->output_section == discarded) | |
30288845 AM |
7805 | { |
7806 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7807 | elf_group_name (s->output_section) = NULL; | |
7808 | } | |
415f38a6 AM |
7809 | /* Conversely, if the member section is not being output |
7810 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7811 | else if (s->output_section == discarded |
7812 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7813 | { |
7814 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7815 | removed += 4; | |
7816 | if (elf_sec->rel.hdr != NULL | |
7817 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7818 | removed += 4; | |
7819 | if (elf_sec->rela.hdr != NULL | |
7820 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7821 | removed += 4; | |
7822 | } | |
30288845 AM |
7823 | s = elf_next_in_group (s); |
7824 | if (s == first) | |
7825 | break; | |
7826 | } | |
d0bf826b AM |
7827 | if (removed != 0) |
7828 | { | |
7829 | if (discarded != NULL) | |
7830 | { | |
7831 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7832 | adjust the input section size. */ |
d0bf826b AM |
7833 | if (isec->rawsize == 0) |
7834 | isec->rawsize = isec->size; | |
7835 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7836 | if (isec->size <= 4) |
7837 | { | |
7838 | isec->size = 0; | |
7839 | isec->flags |= SEC_EXCLUDE; | |
7840 | } | |
d0bf826b AM |
7841 | } |
7842 | else | |
7843 | { | |
7844 | /* Adjust the output section size when called from | |
7845 | objcopy. */ | |
7846 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7847 | if (isec->output_section->size <= 4) |
7848 | { | |
7849 | isec->output_section->size = 0; | |
7850 | isec->output_section->flags |= SEC_EXCLUDE; | |
7851 | } | |
d0bf826b AM |
7852 | } |
7853 | } | |
30288845 AM |
7854 | } |
7855 | ||
80fccad2 BW |
7856 | return TRUE; |
7857 | } | |
7858 | ||
d0bf826b AM |
7859 | /* Copy private header information. */ |
7860 | ||
7861 | bfd_boolean | |
7862 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7863 | { | |
7864 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7865 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7866 | return TRUE; | |
7867 | ||
7868 | /* Copy over private BFD data if it has not already been copied. | |
7869 | This must be done here, rather than in the copy_private_bfd_data | |
7870 | entry point, because the latter is called after the section | |
7871 | contents have been set, which means that the program headers have | |
7872 | already been worked out. */ | |
12bd6957 | 7873 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7874 | { |
7875 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7876 | return FALSE; | |
7877 | } | |
7878 | ||
7879 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7880 | } | |
7881 | ||
252b5132 RH |
7882 | /* Copy private symbol information. If this symbol is in a section |
7883 | which we did not map into a BFD section, try to map the section | |
7884 | index correctly. We use special macro definitions for the mapped | |
7885 | section indices; these definitions are interpreted by the | |
7886 | swap_out_syms function. */ | |
7887 | ||
9ad5cbcf AM |
7888 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7889 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7890 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7891 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7892 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7893 | |
b34976b6 | 7894 | bfd_boolean |
217aa764 AM |
7895 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7896 | asymbol *isymarg, | |
7897 | bfd *obfd, | |
7898 | asymbol *osymarg) | |
252b5132 RH |
7899 | { |
7900 | elf_symbol_type *isym, *osym; | |
7901 | ||
7902 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7903 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7904 | return TRUE; |
252b5132 RH |
7905 | |
7906 | isym = elf_symbol_from (ibfd, isymarg); | |
7907 | osym = elf_symbol_from (obfd, osymarg); | |
7908 | ||
7909 | if (isym != NULL | |
8424d8f5 | 7910 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7911 | && osym != NULL |
7912 | && bfd_is_abs_section (isym->symbol.section)) | |
7913 | { | |
7914 | unsigned int shndx; | |
7915 | ||
7916 | shndx = isym->internal_elf_sym.st_shndx; | |
7917 | if (shndx == elf_onesymtab (ibfd)) | |
7918 | shndx = MAP_ONESYMTAB; | |
7919 | else if (shndx == elf_dynsymtab (ibfd)) | |
7920 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7921 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7922 | shndx = MAP_STRTAB; |
12bd6957 | 7923 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7924 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7925 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7926 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7927 | osym->internal_elf_sym.st_shndx = shndx; |
7928 | } | |
7929 | ||
b34976b6 | 7930 | return TRUE; |
252b5132 RH |
7931 | } |
7932 | ||
7933 | /* Swap out the symbols. */ | |
7934 | ||
b34976b6 | 7935 | static bfd_boolean |
217aa764 | 7936 | swap_out_syms (bfd *abfd, |
ef10c3ac | 7937 | struct elf_strtab_hash **sttp, |
217aa764 | 7938 | int relocatable_p) |
252b5132 | 7939 | { |
9c5bfbb7 | 7940 | const struct elf_backend_data *bed; |
079e9a2f AM |
7941 | int symcount; |
7942 | asymbol **syms; | |
ef10c3ac | 7943 | struct elf_strtab_hash *stt; |
079e9a2f | 7944 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 7945 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 7946 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 7947 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
7948 | bfd_byte *outbound_syms; |
7949 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
7950 | unsigned long outbound_syms_index; |
7951 | unsigned long outbound_shndx_index; | |
079e9a2f | 7952 | int idx; |
12bd6957 | 7953 | unsigned int num_locals; |
079e9a2f | 7954 | bfd_size_type amt; |
174fd7f9 | 7955 | bfd_boolean name_local_sections; |
252b5132 | 7956 | |
12bd6957 | 7957 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 7958 | return FALSE; |
252b5132 | 7959 | |
c044fabd | 7960 | /* Dump out the symtabs. */ |
ef10c3ac | 7961 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 7962 | if (stt == NULL) |
b34976b6 | 7963 | return FALSE; |
252b5132 | 7964 | |
079e9a2f AM |
7965 | bed = get_elf_backend_data (abfd); |
7966 | symcount = bfd_get_symcount (abfd); | |
7967 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7968 | symtab_hdr->sh_type = SHT_SYMTAB; | |
7969 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
7970 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 7971 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 7972 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
7973 | |
7974 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
7975 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
7976 | ||
ef10c3ac | 7977 | /* Allocate buffer to swap out the .strtab section. */ |
7a6e0d89 AM |
7978 | symstrtab = (struct elf_sym_strtab *) bfd_malloc2 (symcount + 1, |
7979 | sizeof (*symstrtab)); | |
ef10c3ac L |
7980 | if (symstrtab == NULL) |
7981 | { | |
7982 | _bfd_elf_strtab_free (stt); | |
7983 | return FALSE; | |
7984 | } | |
7985 | ||
a50b1753 | 7986 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
07d6d2b8 | 7987 | bed->s->sizeof_sym); |
079e9a2f | 7988 | if (outbound_syms == NULL) |
5ed6aba4 | 7989 | { |
ef10c3ac L |
7990 | error_return: |
7991 | _bfd_elf_strtab_free (stt); | |
7992 | free (symstrtab); | |
5ed6aba4 NC |
7993 | return FALSE; |
7994 | } | |
217aa764 | 7995 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 7996 | outbound_syms_index = 0; |
252b5132 | 7997 | |
9ad5cbcf | 7998 | outbound_shndx = NULL; |
ef10c3ac | 7999 | outbound_shndx_index = 0; |
6a40cf0c NC |
8000 | |
8001 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 8002 | { |
6a40cf0c NC |
8003 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
8004 | if (symtab_shndx_hdr->sh_name != 0) | |
8005 | { | |
8006 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
8007 | outbound_shndx = (bfd_byte *) | |
8008 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
8009 | if (outbound_shndx == NULL) | |
8010 | goto error_return; | |
5ed6aba4 | 8011 | |
6a40cf0c NC |
8012 | symtab_shndx_hdr->contents = outbound_shndx; |
8013 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
8014 | symtab_shndx_hdr->sh_size = amt; | |
8015 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
8016 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
8017 | } | |
8018 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
8019 | } |
8020 | ||
589e6347 | 8021 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
8022 | { |
8023 | /* Fill in zeroth symbol and swap it out. */ | |
8024 | Elf_Internal_Sym sym; | |
8025 | sym.st_name = 0; | |
8026 | sym.st_value = 0; | |
8027 | sym.st_size = 0; | |
8028 | sym.st_info = 0; | |
8029 | sym.st_other = 0; | |
8030 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 8031 | sym.st_target_internal = 0; |
ef10c3ac L |
8032 | symstrtab[0].sym = sym; |
8033 | symstrtab[0].dest_index = outbound_syms_index; | |
8034 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
8035 | outbound_syms_index++; | |
9ad5cbcf | 8036 | if (outbound_shndx != NULL) |
ef10c3ac | 8037 | outbound_shndx_index++; |
079e9a2f | 8038 | } |
252b5132 | 8039 | |
174fd7f9 RS |
8040 | name_local_sections |
8041 | = (bed->elf_backend_name_local_section_symbols | |
8042 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
8043 | ||
079e9a2f | 8044 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 8045 | for (idx = 0; idx < symcount;) |
252b5132 | 8046 | { |
252b5132 | 8047 | Elf_Internal_Sym sym; |
079e9a2f AM |
8048 | bfd_vma value = syms[idx]->value; |
8049 | elf_symbol_type *type_ptr; | |
8050 | flagword flags = syms[idx]->flags; | |
8051 | int type; | |
252b5132 | 8052 | |
174fd7f9 RS |
8053 | if (!name_local_sections |
8054 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
8055 | { |
8056 | /* Local section symbols have no name. */ | |
ef10c3ac | 8057 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
8058 | } |
8059 | else | |
8060 | { | |
ef10c3ac L |
8061 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
8062 | to get the final offset for st_name. */ | |
8063 | sym.st_name | |
8064 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
8065 | FALSE); | |
079e9a2f | 8066 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 8067 | goto error_return; |
079e9a2f | 8068 | } |
252b5132 | 8069 | |
079e9a2f | 8070 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 8071 | |
079e9a2f AM |
8072 | if ((flags & BSF_SECTION_SYM) == 0 |
8073 | && bfd_is_com_section (syms[idx]->section)) | |
8074 | { | |
8075 | /* ELF common symbols put the alignment into the `value' field, | |
8076 | and the size into the `size' field. This is backwards from | |
8077 | how BFD handles it, so reverse it here. */ | |
8078 | sym.st_size = value; | |
8079 | if (type_ptr == NULL | |
8080 | || type_ptr->internal_elf_sym.st_value == 0) | |
8081 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8082 | else | |
8083 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8084 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8085 | (abfd, syms[idx]->section); | |
8086 | } | |
8087 | else | |
8088 | { | |
8089 | asection *sec = syms[idx]->section; | |
cb33740c | 8090 | unsigned int shndx; |
252b5132 | 8091 | |
079e9a2f AM |
8092 | if (sec->output_section) |
8093 | { | |
8094 | value += sec->output_offset; | |
8095 | sec = sec->output_section; | |
8096 | } | |
589e6347 | 8097 | |
079e9a2f AM |
8098 | /* Don't add in the section vma for relocatable output. */ |
8099 | if (! relocatable_p) | |
8100 | value += sec->vma; | |
8101 | sym.st_value = value; | |
8102 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8103 | ||
8104 | if (bfd_is_abs_section (sec) | |
8105 | && type_ptr != NULL | |
8106 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8107 | { | |
8108 | /* This symbol is in a real ELF section which we did | |
8109 | not create as a BFD section. Undo the mapping done | |
8110 | by copy_private_symbol_data. */ | |
8111 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8112 | switch (shndx) | |
8113 | { | |
8114 | case MAP_ONESYMTAB: | |
8115 | shndx = elf_onesymtab (abfd); | |
8116 | break; | |
8117 | case MAP_DYNSYMTAB: | |
8118 | shndx = elf_dynsymtab (abfd); | |
8119 | break; | |
8120 | case MAP_STRTAB: | |
12bd6957 | 8121 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8122 | break; |
8123 | case MAP_SHSTRTAB: | |
12bd6957 | 8124 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8125 | break; |
9ad5cbcf | 8126 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8127 | if (elf_symtab_shndx_list (abfd)) |
8128 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8129 | break; |
079e9a2f | 8130 | default: |
15bc576a | 8131 | shndx = SHN_ABS; |
079e9a2f AM |
8132 | break; |
8133 | } | |
8134 | } | |
8135 | else | |
8136 | { | |
8137 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8138 | |
cb33740c | 8139 | if (shndx == SHN_BAD) |
079e9a2f AM |
8140 | { |
8141 | asection *sec2; | |
8142 | ||
8143 | /* Writing this would be a hell of a lot easier if | |
8144 | we had some decent documentation on bfd, and | |
8145 | knew what to expect of the library, and what to | |
8146 | demand of applications. For example, it | |
8147 | appears that `objcopy' might not set the | |
8148 | section of a symbol to be a section that is | |
8149 | actually in the output file. */ | |
8150 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8151 | if (sec2 != NULL) |
8152 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8153 | if (shndx == SHN_BAD) | |
589e6347 | 8154 | { |
695344c0 | 8155 | /* xgettext:c-format */ |
9793eb77 AM |
8156 | _bfd_error_handler |
8157 | (_("unable to find equivalent output section" | |
8158 | " for symbol '%s' from section '%s'"), | |
8159 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8160 | sec->name); | |
811072d8 | 8161 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8162 | goto error_return; |
589e6347 | 8163 | } |
079e9a2f AM |
8164 | } |
8165 | } | |
252b5132 | 8166 | |
079e9a2f AM |
8167 | sym.st_shndx = shndx; |
8168 | } | |
252b5132 | 8169 | |
13ae64f3 JJ |
8170 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8171 | type = STT_TLS; | |
d8045f23 NC |
8172 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8173 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8174 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8175 | type = STT_FUNC; |
8176 | else if ((flags & BSF_OBJECT) != 0) | |
8177 | type = STT_OBJECT; | |
d9352518 DB |
8178 | else if ((flags & BSF_RELC) != 0) |
8179 | type = STT_RELC; | |
8180 | else if ((flags & BSF_SRELC) != 0) | |
8181 | type = STT_SRELC; | |
079e9a2f AM |
8182 | else |
8183 | type = STT_NOTYPE; | |
252b5132 | 8184 | |
13ae64f3 JJ |
8185 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8186 | type = STT_TLS; | |
8187 | ||
589e6347 | 8188 | /* Processor-specific types. */ |
079e9a2f AM |
8189 | if (type_ptr != NULL |
8190 | && bed->elf_backend_get_symbol_type) | |
8191 | type = ((*bed->elf_backend_get_symbol_type) | |
8192 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8193 | |
079e9a2f AM |
8194 | if (flags & BSF_SECTION_SYM) |
8195 | { | |
8196 | if (flags & BSF_GLOBAL) | |
8197 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8198 | else | |
8199 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8200 | } | |
8201 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8202 | { |
b8871f35 L |
8203 | if (type != STT_TLS) |
8204 | { | |
8205 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8206 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8207 | ? STT_COMMON : STT_OBJECT); | |
8208 | else | |
8209 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8210 | ? STT_COMMON : STT_OBJECT); | |
8211 | } | |
8212 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8213 | } |
079e9a2f AM |
8214 | else if (bfd_is_und_section (syms[idx]->section)) |
8215 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8216 | ? STB_WEAK | |
8217 | : STB_GLOBAL), | |
8218 | type); | |
8219 | else if (flags & BSF_FILE) | |
8220 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8221 | else | |
8222 | { | |
8223 | int bind = STB_LOCAL; | |
252b5132 | 8224 | |
079e9a2f AM |
8225 | if (flags & BSF_LOCAL) |
8226 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8227 | else if (flags & BSF_GNU_UNIQUE) |
8228 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8229 | else if (flags & BSF_WEAK) |
8230 | bind = STB_WEAK; | |
8231 | else if (flags & BSF_GLOBAL) | |
8232 | bind = STB_GLOBAL; | |
252b5132 | 8233 | |
079e9a2f AM |
8234 | sym.st_info = ELF_ST_INFO (bind, type); |
8235 | } | |
252b5132 | 8236 | |
079e9a2f | 8237 | if (type_ptr != NULL) |
35fc36a8 RS |
8238 | { |
8239 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8240 | sym.st_target_internal | |
8241 | = type_ptr->internal_elf_sym.st_target_internal; | |
8242 | } | |
079e9a2f | 8243 | else |
35fc36a8 RS |
8244 | { |
8245 | sym.st_other = 0; | |
8246 | sym.st_target_internal = 0; | |
8247 | } | |
252b5132 | 8248 | |
ef10c3ac L |
8249 | idx++; |
8250 | symstrtab[idx].sym = sym; | |
8251 | symstrtab[idx].dest_index = outbound_syms_index; | |
8252 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8253 | ||
8254 | outbound_syms_index++; | |
9ad5cbcf | 8255 | if (outbound_shndx != NULL) |
ef10c3ac L |
8256 | outbound_shndx_index++; |
8257 | } | |
8258 | ||
8259 | /* Finalize the .strtab section. */ | |
8260 | _bfd_elf_strtab_finalize (stt); | |
8261 | ||
8262 | /* Swap out the .strtab section. */ | |
8263 | for (idx = 0; idx <= symcount; idx++) | |
8264 | { | |
8265 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8266 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8267 | elfsym->sym.st_name = 0; | |
8268 | else | |
8269 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8270 | elfsym->sym.st_name); | |
8271 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8272 | (outbound_syms | |
8273 | + (elfsym->dest_index | |
8274 | * bed->s->sizeof_sym)), | |
8275 | (outbound_shndx | |
8276 | + (elfsym->destshndx_index | |
8277 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8278 | } |
ef10c3ac | 8279 | free (symstrtab); |
252b5132 | 8280 | |
079e9a2f | 8281 | *sttp = stt; |
ef10c3ac | 8282 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8283 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8284 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8285 | symstrtab_hdr->sh_addr = 0; |
8286 | symstrtab_hdr->sh_entsize = 0; | |
8287 | symstrtab_hdr->sh_link = 0; | |
8288 | symstrtab_hdr->sh_info = 0; | |
8289 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8290 | |
b34976b6 | 8291 | return TRUE; |
252b5132 RH |
8292 | } |
8293 | ||
8294 | /* Return the number of bytes required to hold the symtab vector. | |
8295 | ||
8296 | Note that we base it on the count plus 1, since we will null terminate | |
8297 | the vector allocated based on this size. However, the ELF symbol table | |
8298 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8299 | ||
8300 | long | |
217aa764 | 8301 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8302 | { |
3a551c7a | 8303 | bfd_size_type symcount; |
252b5132 RH |
8304 | long symtab_size; |
8305 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8306 | ||
8307 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8308 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8309 | { | |
8310 | bfd_set_error (bfd_error_file_too_big); | |
8311 | return -1; | |
8312 | } | |
b99d1833 AM |
8313 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8314 | if (symcount > 0) | |
8315 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8316 | |
8317 | return symtab_size; | |
8318 | } | |
8319 | ||
8320 | long | |
217aa764 | 8321 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8322 | { |
3a551c7a | 8323 | bfd_size_type symcount; |
252b5132 RH |
8324 | long symtab_size; |
8325 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8326 | ||
8327 | if (elf_dynsymtab (abfd) == 0) | |
8328 | { | |
8329 | bfd_set_error (bfd_error_invalid_operation); | |
8330 | return -1; | |
8331 | } | |
8332 | ||
8333 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8334 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8335 | { | |
8336 | bfd_set_error (bfd_error_file_too_big); | |
8337 | return -1; | |
8338 | } | |
b99d1833 AM |
8339 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8340 | if (symcount > 0) | |
8341 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8342 | |
8343 | return symtab_size; | |
8344 | } | |
8345 | ||
8346 | long | |
217aa764 AM |
8347 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8348 | sec_ptr asect) | |
252b5132 | 8349 | { |
242a1159 | 8350 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8351 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8352 | { | |
8353 | bfd_set_error (bfd_error_file_too_big); | |
8354 | return -1; | |
8355 | } | |
242a1159 | 8356 | #endif |
252b5132 RH |
8357 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8358 | } | |
8359 | ||
8360 | /* Canonicalize the relocs. */ | |
8361 | ||
8362 | long | |
217aa764 AM |
8363 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8364 | sec_ptr section, | |
8365 | arelent **relptr, | |
8366 | asymbol **symbols) | |
252b5132 RH |
8367 | { |
8368 | arelent *tblptr; | |
8369 | unsigned int i; | |
9c5bfbb7 | 8370 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8371 | |
b34976b6 | 8372 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8373 | return -1; |
8374 | ||
8375 | tblptr = section->relocation; | |
8376 | for (i = 0; i < section->reloc_count; i++) | |
8377 | *relptr++ = tblptr++; | |
8378 | ||
8379 | *relptr = NULL; | |
8380 | ||
8381 | return section->reloc_count; | |
8382 | } | |
8383 | ||
8384 | long | |
6cee3f79 | 8385 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8386 | { |
9c5bfbb7 | 8387 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8388 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8389 | |
8390 | if (symcount >= 0) | |
8391 | bfd_get_symcount (abfd) = symcount; | |
8392 | return symcount; | |
8393 | } | |
8394 | ||
8395 | long | |
217aa764 AM |
8396 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8397 | asymbol **allocation) | |
252b5132 | 8398 | { |
9c5bfbb7 | 8399 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8400 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8401 | |
8402 | if (symcount >= 0) | |
8403 | bfd_get_dynamic_symcount (abfd) = symcount; | |
8404 | return symcount; | |
252b5132 RH |
8405 | } |
8406 | ||
8615f3f2 AM |
8407 | /* Return the size required for the dynamic reloc entries. Any loadable |
8408 | section that was actually installed in the BFD, and has type SHT_REL | |
8409 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8410 | dynamic reloc section. */ | |
252b5132 RH |
8411 | |
8412 | long | |
217aa764 | 8413 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8414 | { |
3a551c7a | 8415 | bfd_size_type count; |
252b5132 RH |
8416 | asection *s; |
8417 | ||
8418 | if (elf_dynsymtab (abfd) == 0) | |
8419 | { | |
8420 | bfd_set_error (bfd_error_invalid_operation); | |
8421 | return -1; | |
8422 | } | |
8423 | ||
3a551c7a | 8424 | count = 1; |
252b5132 | 8425 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8426 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8427 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8428 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a AM |
8429 | { |
8430 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; | |
8431 | if (count > LONG_MAX / sizeof (arelent *)) | |
8432 | { | |
8433 | bfd_set_error (bfd_error_file_too_big); | |
8434 | return -1; | |
8435 | } | |
8436 | } | |
8437 | return count * sizeof (arelent *); | |
252b5132 RH |
8438 | } |
8439 | ||
8615f3f2 AM |
8440 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8441 | dynamic relocations as a single block, although they are actually | |
8442 | associated with particular sections; the interface, which was | |
8443 | designed for SunOS style shared libraries, expects that there is only | |
8444 | one set of dynamic relocs. Any loadable section that was actually | |
8445 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8446 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8447 | |
8448 | long | |
217aa764 AM |
8449 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8450 | arelent **storage, | |
8451 | asymbol **syms) | |
252b5132 | 8452 | { |
217aa764 | 8453 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8454 | asection *s; |
8455 | long ret; | |
8456 | ||
8457 | if (elf_dynsymtab (abfd) == 0) | |
8458 | { | |
8459 | bfd_set_error (bfd_error_invalid_operation); | |
8460 | return -1; | |
8461 | } | |
8462 | ||
8463 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8464 | ret = 0; | |
8465 | for (s = abfd->sections; s != NULL; s = s->next) | |
8466 | { | |
266b05cf | 8467 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8468 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8469 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8470 | { | |
8471 | arelent *p; | |
8472 | long count, i; | |
8473 | ||
b34976b6 | 8474 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8475 | return -1; |
eea6121a | 8476 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8477 | p = s->relocation; |
8478 | for (i = 0; i < count; i++) | |
8479 | *storage++ = p++; | |
8480 | ret += count; | |
8481 | } | |
8482 | } | |
8483 | ||
8484 | *storage = NULL; | |
8485 | ||
8486 | return ret; | |
8487 | } | |
8488 | \f | |
8489 | /* Read in the version information. */ | |
8490 | ||
b34976b6 | 8491 | bfd_boolean |
fc0e6df6 | 8492 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8493 | { |
8494 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
8495 | unsigned int freeidx = 0; |
8496 | ||
8497 | if (elf_dynverref (abfd) != 0) | |
8498 | { | |
8499 | Elf_Internal_Shdr *hdr; | |
8500 | Elf_External_Verneed *everneed; | |
8501 | Elf_Internal_Verneed *iverneed; | |
8502 | unsigned int i; | |
d0fb9a8d | 8503 | bfd_byte *contents_end; |
fc0e6df6 PB |
8504 | |
8505 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8506 | ||
bd61e135 AM |
8507 | if (hdr->sh_info == 0 |
8508 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8509 | { |
601a03ba | 8510 | error_return_bad_verref: |
4eca0228 | 8511 | _bfd_error_handler |
871b3ab2 | 8512 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8513 | bfd_set_error (bfd_error_bad_value); |
d0fb9a8d JJ |
8514 | error_return_verref: |
8515 | elf_tdata (abfd)->verref = NULL; | |
8516 | elf_tdata (abfd)->cverrefs = 0; | |
8517 | goto error_return; | |
8518 | } | |
601a03ba | 8519 | |
7e56c51c NC |
8520 | ufile_ptr filesize = bfd_get_file_size (abfd); |
8521 | if (filesize > 0 && filesize < hdr->sh_size) | |
8522 | { | |
8523 | /* PR 24708: Avoid attempts to allocate a ridiculous amount | |
8524 | of memory. */ | |
8525 | bfd_set_error (bfd_error_no_memory); | |
8526 | _bfd_error_handler | |
8527 | /* xgettext:c-format */ | |
8528 | (_("error: %pB version reference section is too large (%#" PRIx64 " bytes)"), | |
8529 | abfd, (uint64_t) hdr->sh_size); | |
8530 | goto error_return_verref; | |
8531 | } | |
601a03ba AM |
8532 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
8533 | if (contents == NULL) | |
8534 | goto error_return_verref; | |
8535 | ||
fc0e6df6 PB |
8536 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
8537 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 8538 | goto error_return_verref; |
fc0e6df6 | 8539 | |
601a03ba | 8540 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
bd61e135 | 8541 | bfd_alloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); |
601a03ba AM |
8542 | |
8543 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
8544 | goto error_return_verref; |
8545 | ||
8546 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8547 | == sizeof (Elf_External_Vernaux)); | |
8548 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8549 | everneed = (Elf_External_Verneed *) contents; |
8550 | iverneed = elf_tdata (abfd)->verref; | |
8551 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8552 | { | |
8553 | Elf_External_Vernaux *evernaux; | |
8554 | Elf_Internal_Vernaux *ivernaux; | |
8555 | unsigned int j; | |
8556 | ||
8557 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8558 | ||
8559 | iverneed->vn_bfd = abfd; | |
8560 | ||
8561 | iverneed->vn_filename = | |
8562 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8563 | iverneed->vn_file); | |
8564 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8565 | goto error_return_bad_verref; |
fc0e6df6 | 8566 | |
d0fb9a8d JJ |
8567 | if (iverneed->vn_cnt == 0) |
8568 | iverneed->vn_auxptr = NULL; | |
8569 | else | |
8570 | { | |
a50b1753 | 8571 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
07d6d2b8 AM |
8572 | bfd_alloc2 (abfd, iverneed->vn_cnt, |
8573 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
8574 | if (iverneed->vn_auxptr == NULL) |
8575 | goto error_return_verref; | |
8576 | } | |
8577 | ||
8578 | if (iverneed->vn_aux | |
8579 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8580 | goto error_return_bad_verref; |
fc0e6df6 PB |
8581 | |
8582 | evernaux = ((Elf_External_Vernaux *) | |
8583 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8584 | ivernaux = iverneed->vn_auxptr; | |
8585 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8586 | { | |
8587 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8588 | ||
8589 | ivernaux->vna_nodename = | |
8590 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8591 | ivernaux->vna_name); | |
8592 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8593 | goto error_return_bad_verref; |
fc0e6df6 | 8594 | |
25ff461f AM |
8595 | if (ivernaux->vna_other > freeidx) |
8596 | freeidx = ivernaux->vna_other; | |
8597 | ||
8598 | ivernaux->vna_nextptr = NULL; | |
8599 | if (ivernaux->vna_next == 0) | |
8600 | { | |
8601 | iverneed->vn_cnt = j + 1; | |
8602 | break; | |
8603 | } | |
fc0e6df6 PB |
8604 | if (j + 1 < iverneed->vn_cnt) |
8605 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8606 | |
d0fb9a8d JJ |
8607 | if (ivernaux->vna_next |
8608 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8609 | goto error_return_bad_verref; |
d0fb9a8d | 8610 | |
fc0e6df6 PB |
8611 | evernaux = ((Elf_External_Vernaux *) |
8612 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8613 | } |
8614 | ||
25ff461f AM |
8615 | iverneed->vn_nextref = NULL; |
8616 | if (iverneed->vn_next == 0) | |
8617 | break; | |
fc0e6df6 PB |
8618 | if (i + 1 < hdr->sh_info) |
8619 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8620 | |
d0fb9a8d JJ |
8621 | if (iverneed->vn_next |
8622 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8623 | goto error_return_bad_verref; |
d0fb9a8d | 8624 | |
fc0e6df6 PB |
8625 | everneed = ((Elf_External_Verneed *) |
8626 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8627 | } | |
25ff461f | 8628 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8629 | |
8630 | free (contents); | |
8631 | contents = NULL; | |
8632 | } | |
252b5132 RH |
8633 | |
8634 | if (elf_dynverdef (abfd) != 0) | |
8635 | { | |
8636 | Elf_Internal_Shdr *hdr; | |
8637 | Elf_External_Verdef *everdef; | |
8638 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8639 | Elf_Internal_Verdef *iverdefarr; |
8640 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8641 | unsigned int i; |
062e2358 | 8642 | unsigned int maxidx; |
d0fb9a8d | 8643 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8644 | |
8645 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8646 | ||
601a03ba AM |
8647 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8648 | { | |
8649 | error_return_bad_verdef: | |
4eca0228 | 8650 | _bfd_error_handler |
871b3ab2 | 8651 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8652 | bfd_set_error (bfd_error_bad_value); |
8653 | error_return_verdef: | |
8654 | elf_tdata (abfd)->verdef = NULL; | |
8655 | elf_tdata (abfd)->cverdefs = 0; | |
8656 | goto error_return; | |
8657 | } | |
8658 | ||
a50b1753 | 8659 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 8660 | if (contents == NULL) |
601a03ba | 8661 | goto error_return_verdef; |
252b5132 | 8662 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 8663 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 8664 | goto error_return_verdef; |
d0fb9a8d JJ |
8665 | |
8666 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8667 | >= sizeof (Elf_External_Verdaux)); | |
8668 | contents_end_def = contents + hdr->sh_size | |
8669 | - sizeof (Elf_External_Verdef); | |
8670 | contents_end_aux = contents + hdr->sh_size | |
8671 | - sizeof (Elf_External_Verdaux); | |
8672 | ||
f631889e UD |
8673 | /* We know the number of entries in the section but not the maximum |
8674 | index. Therefore we have to run through all entries and find | |
8675 | the maximum. */ | |
252b5132 | 8676 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8677 | maxidx = 0; |
8678 | for (i = 0; i < hdr->sh_info; ++i) | |
8679 | { | |
8680 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8681 | ||
601a03ba AM |
8682 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8683 | goto error_return_bad_verdef; | |
062e2358 AM |
8684 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8685 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8686 | |
25ff461f AM |
8687 | if (iverdefmem.vd_next == 0) |
8688 | break; | |
8689 | ||
d0fb9a8d JJ |
8690 | if (iverdefmem.vd_next |
8691 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8692 | goto error_return_bad_verdef; |
d0fb9a8d | 8693 | |
f631889e UD |
8694 | everdef = ((Elf_External_Verdef *) |
8695 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8696 | } | |
8697 | ||
fc0e6df6 PB |
8698 | if (default_imported_symver) |
8699 | { | |
8700 | if (freeidx > maxidx) | |
8701 | maxidx = ++freeidx; | |
8702 | else | |
8703 | freeidx = ++maxidx; | |
8704 | } | |
201159ec | 8705 | |
601a03ba AM |
8706 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
8707 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 8708 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8709 | goto error_return_verdef; |
f631889e UD |
8710 | |
8711 | elf_tdata (abfd)->cverdefs = maxidx; | |
8712 | ||
8713 | everdef = (Elf_External_Verdef *) contents; | |
8714 | iverdefarr = elf_tdata (abfd)->verdef; | |
8715 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8716 | { |
8717 | Elf_External_Verdaux *everdaux; | |
8718 | Elf_Internal_Verdaux *iverdaux; | |
8719 | unsigned int j; | |
8720 | ||
f631889e UD |
8721 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8722 | ||
d0fb9a8d | 8723 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8724 | goto error_return_bad_verdef; |
d0fb9a8d | 8725 | |
f631889e | 8726 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8727 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8728 | |
8729 | iverdef->vd_bfd = abfd; | |
8730 | ||
d0fb9a8d JJ |
8731 | if (iverdef->vd_cnt == 0) |
8732 | iverdef->vd_auxptr = NULL; | |
8733 | else | |
8734 | { | |
a50b1753 | 8735 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
07d6d2b8 AM |
8736 | bfd_alloc2 (abfd, iverdef->vd_cnt, |
8737 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
8738 | if (iverdef->vd_auxptr == NULL) |
8739 | goto error_return_verdef; | |
8740 | } | |
8741 | ||
8742 | if (iverdef->vd_aux | |
8743 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8744 | goto error_return_bad_verdef; |
252b5132 RH |
8745 | |
8746 | everdaux = ((Elf_External_Verdaux *) | |
8747 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8748 | iverdaux = iverdef->vd_auxptr; | |
8749 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8750 | { | |
8751 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8752 | ||
8753 | iverdaux->vda_nodename = | |
8754 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8755 | iverdaux->vda_name); | |
8756 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8757 | goto error_return_bad_verdef; |
252b5132 | 8758 | |
25ff461f AM |
8759 | iverdaux->vda_nextptr = NULL; |
8760 | if (iverdaux->vda_next == 0) | |
8761 | { | |
8762 | iverdef->vd_cnt = j + 1; | |
8763 | break; | |
8764 | } | |
252b5132 RH |
8765 | if (j + 1 < iverdef->vd_cnt) |
8766 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8767 | |
d0fb9a8d JJ |
8768 | if (iverdaux->vda_next |
8769 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8770 | goto error_return_bad_verdef; |
d0fb9a8d | 8771 | |
252b5132 RH |
8772 | everdaux = ((Elf_External_Verdaux *) |
8773 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8774 | } | |
8775 | ||
595bce75 | 8776 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8777 | if (iverdef->vd_cnt) |
8778 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8779 | |
25ff461f AM |
8780 | iverdef->vd_nextdef = NULL; |
8781 | if (iverdef->vd_next == 0) | |
8782 | break; | |
d0fb9a8d | 8783 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8784 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8785 | |
8786 | everdef = ((Elf_External_Verdef *) | |
8787 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8788 | } | |
8789 | ||
8790 | free (contents); | |
8791 | contents = NULL; | |
8792 | } | |
fc0e6df6 | 8793 | else if (default_imported_symver) |
252b5132 | 8794 | { |
fc0e6df6 PB |
8795 | if (freeidx < 3) |
8796 | freeidx = 3; | |
8797 | else | |
8798 | freeidx++; | |
252b5132 | 8799 | |
a50b1753 | 8800 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
07d6d2b8 | 8801 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); |
fc0e6df6 | 8802 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8803 | goto error_return; |
8804 | ||
fc0e6df6 PB |
8805 | elf_tdata (abfd)->cverdefs = freeidx; |
8806 | } | |
252b5132 | 8807 | |
fc0e6df6 PB |
8808 | /* Create a default version based on the soname. */ |
8809 | if (default_imported_symver) | |
8810 | { | |
8811 | Elf_Internal_Verdef *iverdef; | |
8812 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8813 | |
5bb3703f | 8814 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8815 | |
fc0e6df6 PB |
8816 | iverdef->vd_version = VER_DEF_CURRENT; |
8817 | iverdef->vd_flags = 0; | |
8818 | iverdef->vd_ndx = freeidx; | |
8819 | iverdef->vd_cnt = 1; | |
252b5132 | 8820 | |
fc0e6df6 | 8821 | iverdef->vd_bfd = abfd; |
252b5132 | 8822 | |
fc0e6df6 PB |
8823 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8824 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8825 | goto error_return_verdef; |
fc0e6df6 | 8826 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8827 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8828 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8829 | if (iverdef->vd_auxptr == NULL) |
8830 | goto error_return_verdef; | |
252b5132 | 8831 | |
fc0e6df6 PB |
8832 | iverdaux = iverdef->vd_auxptr; |
8833 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8834 | } |
8835 | ||
b34976b6 | 8836 | return TRUE; |
252b5132 RH |
8837 | |
8838 | error_return: | |
5ed6aba4 | 8839 | if (contents != NULL) |
252b5132 | 8840 | free (contents); |
b34976b6 | 8841 | return FALSE; |
252b5132 RH |
8842 | } |
8843 | \f | |
8844 | asymbol * | |
217aa764 | 8845 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8846 | { |
8847 | elf_symbol_type *newsym; | |
8848 | ||
7a6e0d89 | 8849 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
8850 | if (!newsym) |
8851 | return NULL; | |
201159ec NC |
8852 | newsym->symbol.the_bfd = abfd; |
8853 | return &newsym->symbol; | |
252b5132 RH |
8854 | } |
8855 | ||
8856 | void | |
217aa764 AM |
8857 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8858 | asymbol *symbol, | |
8859 | symbol_info *ret) | |
252b5132 RH |
8860 | { |
8861 | bfd_symbol_info (symbol, ret); | |
8862 | } | |
8863 | ||
8864 | /* Return whether a symbol name implies a local symbol. Most targets | |
8865 | use this function for the is_local_label_name entry point, but some | |
8866 | override it. */ | |
8867 | ||
b34976b6 | 8868 | bfd_boolean |
217aa764 AM |
8869 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8870 | const char *name) | |
252b5132 RH |
8871 | { |
8872 | /* Normal local symbols start with ``.L''. */ | |
8873 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8874 | return TRUE; |
252b5132 RH |
8875 | |
8876 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8877 | DWARF debugging symbols starting with ``..''. */ | |
8878 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8879 | return TRUE; |
252b5132 RH |
8880 | |
8881 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8882 | emitting DWARF debugging output. I suspect this is actually a | |
8883 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8884 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8885 | underscore to be emitted on some ELF targets). For ease of use, | |
8886 | we treat such symbols as local. */ | |
8887 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8888 | return TRUE; |
252b5132 | 8889 | |
b1fa9dd6 NC |
8890 | /* Treat assembler generated fake symbols, dollar local labels and |
8891 | forward-backward labels (aka local labels) as locals. | |
8892 | These labels have the form: | |
8893 | ||
07d6d2b8 | 8894 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8895 | |
8896 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8897 | ||
8898 | Versions which start with .L will have already been matched above, | |
8899 | so we only need to match the rest. */ | |
8900 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8901 | { | |
8902 | bfd_boolean ret = FALSE; | |
8903 | const char * p; | |
8904 | char c; | |
8905 | ||
8906 | for (p = name + 2; (c = *p); p++) | |
8907 | { | |
8908 | if (c == 1 || c == 2) | |
8909 | { | |
8910 | if (c == 1 && p == name + 2) | |
8911 | /* A fake symbol. */ | |
8912 | return TRUE; | |
8913 | ||
8914 | /* FIXME: We are being paranoid here and treating symbols like | |
8915 | L0^Bfoo as if there were non-local, on the grounds that the | |
8916 | assembler will never generate them. But can any symbol | |
8917 | containing an ASCII value in the range 1-31 ever be anything | |
8918 | other than some kind of local ? */ | |
8919 | ret = TRUE; | |
8920 | } | |
8921 | ||
8922 | if (! ISDIGIT (c)) | |
8923 | { | |
8924 | ret = FALSE; | |
8925 | break; | |
8926 | } | |
8927 | } | |
8928 | return ret; | |
8929 | } | |
ffa54770 | 8930 | |
b34976b6 | 8931 | return FALSE; |
252b5132 RH |
8932 | } |
8933 | ||
8934 | alent * | |
217aa764 AM |
8935 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
8936 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
8937 | { |
8938 | abort (); | |
8939 | return NULL; | |
8940 | } | |
8941 | ||
b34976b6 | 8942 | bfd_boolean |
217aa764 AM |
8943 | _bfd_elf_set_arch_mach (bfd *abfd, |
8944 | enum bfd_architecture arch, | |
8945 | unsigned long machine) | |
252b5132 RH |
8946 | { |
8947 | /* If this isn't the right architecture for this backend, and this | |
8948 | isn't the generic backend, fail. */ | |
8949 | if (arch != get_elf_backend_data (abfd)->arch | |
8950 | && arch != bfd_arch_unknown | |
8951 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 8952 | return FALSE; |
252b5132 RH |
8953 | |
8954 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
8955 | } | |
8956 | ||
d1fad7c6 NC |
8957 | /* Find the nearest line to a particular section and offset, |
8958 | for error reporting. */ | |
8959 | ||
b34976b6 | 8960 | bfd_boolean |
217aa764 | 8961 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 8962 | asymbol **symbols, |
fb167eb2 | 8963 | asection *section, |
217aa764 AM |
8964 | bfd_vma offset, |
8965 | const char **filename_ptr, | |
8966 | const char **functionname_ptr, | |
fb167eb2 AM |
8967 | unsigned int *line_ptr, |
8968 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 8969 | { |
b34976b6 | 8970 | bfd_boolean found; |
d1fad7c6 | 8971 | |
fb167eb2 | 8972 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 8973 | filename_ptr, functionname_ptr, |
fb167eb2 AM |
8974 | line_ptr, discriminator_ptr, |
8975 | dwarf_debug_sections, 0, | |
e00e8198 AM |
8976 | &elf_tdata (abfd)->dwarf2_find_line_info) |
8977 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
8978 | filename_ptr, functionname_ptr, | |
8979 | line_ptr)) | |
d1fad7c6 NC |
8980 | { |
8981 | if (!*functionname_ptr) | |
e00e8198 AM |
8982 | _bfd_elf_find_function (abfd, symbols, section, offset, |
8983 | *filename_ptr ? NULL : filename_ptr, | |
8984 | functionname_ptr); | |
b34976b6 | 8985 | return TRUE; |
d1fad7c6 NC |
8986 | } |
8987 | ||
8988 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
8989 | &found, filename_ptr, |
8990 | functionname_ptr, line_ptr, | |
8991 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 8992 | return FALSE; |
dc43ada5 | 8993 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 8994 | return TRUE; |
d1fad7c6 NC |
8995 | |
8996 | if (symbols == NULL) | |
b34976b6 | 8997 | return FALSE; |
d1fad7c6 | 8998 | |
e00e8198 AM |
8999 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
9000 | filename_ptr, functionname_ptr)) | |
b34976b6 | 9001 | return FALSE; |
d1fad7c6 | 9002 | |
252b5132 | 9003 | *line_ptr = 0; |
b34976b6 | 9004 | return TRUE; |
252b5132 RH |
9005 | } |
9006 | ||
5420f73d L |
9007 | /* Find the line for a symbol. */ |
9008 | ||
9009 | bfd_boolean | |
9010 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
9011 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 9012 | { |
fb167eb2 AM |
9013 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
9014 | filename_ptr, NULL, line_ptr, NULL, | |
9015 | dwarf_debug_sections, 0, | |
9016 | &elf_tdata (abfd)->dwarf2_find_line_info); | |
5420f73d L |
9017 | } |
9018 | ||
4ab527b0 FF |
9019 | /* After a call to bfd_find_nearest_line, successive calls to |
9020 | bfd_find_inliner_info can be used to get source information about | |
9021 | each level of function inlining that terminated at the address | |
9022 | passed to bfd_find_nearest_line. Currently this is only supported | |
9023 | for DWARF2 with appropriate DWARF3 extensions. */ | |
9024 | ||
9025 | bfd_boolean | |
9026 | _bfd_elf_find_inliner_info (bfd *abfd, | |
9027 | const char **filename_ptr, | |
9028 | const char **functionname_ptr, | |
9029 | unsigned int *line_ptr) | |
9030 | { | |
9031 | bfd_boolean found; | |
9032 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
9033 | functionname_ptr, line_ptr, | |
9034 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
9035 | return found; | |
9036 | } | |
9037 | ||
252b5132 | 9038 | int |
a6b96beb | 9039 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 9040 | { |
8ded5a0f AM |
9041 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
9042 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 9043 | |
0e1862bb | 9044 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 9045 | { |
12bd6957 | 9046 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 9047 | |
62d7a5f6 AM |
9048 | if (phdr_size == (bfd_size_type) -1) |
9049 | { | |
9050 | struct elf_segment_map *m; | |
9051 | ||
9052 | phdr_size = 0; | |
12bd6957 | 9053 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 9054 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 9055 | |
62d7a5f6 AM |
9056 | if (phdr_size == 0) |
9057 | phdr_size = get_program_header_size (abfd, info); | |
9058 | } | |
8ded5a0f | 9059 | |
12bd6957 | 9060 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
9061 | ret += phdr_size; |
9062 | } | |
9063 | ||
252b5132 RH |
9064 | return ret; |
9065 | } | |
9066 | ||
b34976b6 | 9067 | bfd_boolean |
217aa764 AM |
9068 | _bfd_elf_set_section_contents (bfd *abfd, |
9069 | sec_ptr section, | |
0f867abe | 9070 | const void *location, |
217aa764 AM |
9071 | file_ptr offset, |
9072 | bfd_size_type count) | |
252b5132 RH |
9073 | { |
9074 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 9075 | file_ptr pos; |
252b5132 RH |
9076 | |
9077 | if (! abfd->output_has_begun | |
217aa764 | 9078 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 9079 | return FALSE; |
252b5132 | 9080 | |
0ce398f1 L |
9081 | if (!count) |
9082 | return TRUE; | |
9083 | ||
252b5132 | 9084 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
9085 | if (hdr->sh_offset == (file_ptr) -1) |
9086 | { | |
9087 | /* We must compress this section. Write output to the buffer. */ | |
9088 | unsigned char *contents = hdr->contents; | |
9089 | if ((offset + count) > hdr->sh_size | |
9090 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
9091 | || contents == NULL) | |
9092 | abort (); | |
9093 | memcpy (contents + offset, location, count); | |
9094 | return TRUE; | |
9095 | } | |
dc810e39 AM |
9096 | pos = hdr->sh_offset + offset; |
9097 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9098 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9099 | return FALSE; |
252b5132 | 9100 | |
b34976b6 | 9101 | return TRUE; |
252b5132 RH |
9102 | } |
9103 | ||
f3185997 | 9104 | bfd_boolean |
217aa764 AM |
9105 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9106 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9107 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9108 | { |
9109 | abort (); | |
f3185997 | 9110 | return FALSE; |
252b5132 RH |
9111 | } |
9112 | ||
252b5132 RH |
9113 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9114 | ||
b34976b6 | 9115 | bfd_boolean |
217aa764 | 9116 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9117 | { |
c044fabd | 9118 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9119 | |
9120 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9121 | { | |
9122 | bfd_reloc_code_real_type code; | |
9123 | reloc_howto_type *howto; | |
9124 | ||
9125 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9126 | equivalent ELF reloc. */ |
252b5132 RH |
9127 | |
9128 | if (areloc->howto->pc_relative) | |
9129 | { | |
9130 | switch (areloc->howto->bitsize) | |
9131 | { | |
9132 | case 8: | |
9133 | code = BFD_RELOC_8_PCREL; | |
9134 | break; | |
9135 | case 12: | |
9136 | code = BFD_RELOC_12_PCREL; | |
9137 | break; | |
9138 | case 16: | |
9139 | code = BFD_RELOC_16_PCREL; | |
9140 | break; | |
9141 | case 24: | |
9142 | code = BFD_RELOC_24_PCREL; | |
9143 | break; | |
9144 | case 32: | |
9145 | code = BFD_RELOC_32_PCREL; | |
9146 | break; | |
9147 | case 64: | |
9148 | code = BFD_RELOC_64_PCREL; | |
9149 | break; | |
9150 | default: | |
9151 | goto fail; | |
9152 | } | |
9153 | ||
9154 | howto = bfd_reloc_type_lookup (abfd, code); | |
9155 | ||
9156 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
9157 | { | |
9158 | if (howto->pcrel_offset) | |
9159 | areloc->addend += areloc->address; | |
9160 | else | |
9161 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9162 | } | |
9163 | } | |
9164 | else | |
9165 | { | |
9166 | switch (areloc->howto->bitsize) | |
9167 | { | |
9168 | case 8: | |
9169 | code = BFD_RELOC_8; | |
9170 | break; | |
9171 | case 14: | |
9172 | code = BFD_RELOC_14; | |
9173 | break; | |
9174 | case 16: | |
9175 | code = BFD_RELOC_16; | |
9176 | break; | |
9177 | case 26: | |
9178 | code = BFD_RELOC_26; | |
9179 | break; | |
9180 | case 32: | |
9181 | code = BFD_RELOC_32; | |
9182 | break; | |
9183 | case 64: | |
9184 | code = BFD_RELOC_64; | |
9185 | break; | |
9186 | default: | |
9187 | goto fail; | |
9188 | } | |
9189 | ||
9190 | howto = bfd_reloc_type_lookup (abfd, code); | |
9191 | } | |
9192 | ||
9193 | if (howto) | |
9194 | areloc->howto = howto; | |
9195 | else | |
9196 | goto fail; | |
9197 | } | |
9198 | ||
b34976b6 | 9199 | return TRUE; |
252b5132 RH |
9200 | |
9201 | fail: | |
0aa13fee AM |
9202 | /* xgettext:c-format */ |
9203 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9204 | abfd, areloc->howto->name); | |
252b5132 | 9205 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 9206 | return FALSE; |
252b5132 RH |
9207 | } |
9208 | ||
b34976b6 | 9209 | bfd_boolean |
217aa764 | 9210 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9211 | { |
d9071b0c TG |
9212 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9213 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9214 | { |
c0355132 | 9215 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9216 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9217 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9218 | } |
9219 | ||
9220 | return _bfd_generic_close_and_cleanup (abfd); | |
9221 | } | |
9222 | ||
9223 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9224 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9225 | range-checking to interfere. There is nothing else to do in processing | |
9226 | this reloc. */ | |
9227 | ||
9228 | bfd_reloc_status_type | |
217aa764 AM |
9229 | _bfd_elf_rel_vtable_reloc_fn |
9230 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9231 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9232 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9233 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9234 | { |
9235 | return bfd_reloc_ok; | |
9236 | } | |
252b5132 RH |
9237 | \f |
9238 | /* Elf core file support. Much of this only works on native | |
9239 | toolchains, since we rely on knowing the | |
9240 | machine-dependent procfs structure in order to pick | |
c044fabd | 9241 | out details about the corefile. */ |
252b5132 RH |
9242 | |
9243 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9244 | /* Needed for new procfs interface on sparc-solaris. */ |
9245 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9246 | # include <sys/procfs.h> |
9247 | #endif | |
9248 | ||
261b8d08 PA |
9249 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9250 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9251 | |
9252 | static int | |
217aa764 | 9253 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9254 | { |
261b8d08 PA |
9255 | int pid; |
9256 | ||
228e534f | 9257 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9258 | if (pid == 0) |
228e534f | 9259 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9260 | |
9261 | return pid; | |
252b5132 RH |
9262 | } |
9263 | ||
252b5132 RH |
9264 | /* If there isn't a section called NAME, make one, using |
9265 | data from SECT. Note, this function will generate a | |
9266 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9267 | overwrite it. */ |
252b5132 | 9268 | |
b34976b6 | 9269 | static bfd_boolean |
217aa764 | 9270 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9271 | { |
c044fabd | 9272 | asection *sect2; |
252b5132 RH |
9273 | |
9274 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9275 | return TRUE; |
252b5132 | 9276 | |
117ed4f8 | 9277 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9278 | if (sect2 == NULL) |
b34976b6 | 9279 | return FALSE; |
252b5132 | 9280 | |
eea6121a | 9281 | sect2->size = sect->size; |
252b5132 | 9282 | sect2->filepos = sect->filepos; |
252b5132 | 9283 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9284 | return TRUE; |
252b5132 RH |
9285 | } |
9286 | ||
bb0082d6 AM |
9287 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9288 | actually creates up to two pseudosections: | |
9289 | - For the single-threaded case, a section named NAME, unless | |
9290 | such a section already exists. | |
9291 | - For the multi-threaded case, a section named "NAME/PID", where | |
9292 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9293 | Both pseudosections have identical contents. */ |
b34976b6 | 9294 | bfd_boolean |
217aa764 AM |
9295 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9296 | char *name, | |
9297 | size_t size, | |
9298 | ufile_ptr filepos) | |
bb0082d6 AM |
9299 | { |
9300 | char buf[100]; | |
9301 | char *threaded_name; | |
d4c88bbb | 9302 | size_t len; |
bb0082d6 AM |
9303 | asection *sect; |
9304 | ||
9305 | /* Build the section name. */ | |
9306 | ||
9307 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9308 | len = strlen (buf) + 1; |
a50b1753 | 9309 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9310 | if (threaded_name == NULL) |
b34976b6 | 9311 | return FALSE; |
d4c88bbb | 9312 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9313 | |
117ed4f8 AM |
9314 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9315 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9316 | if (sect == NULL) |
b34976b6 | 9317 | return FALSE; |
eea6121a | 9318 | sect->size = size; |
bb0082d6 | 9319 | sect->filepos = filepos; |
bb0082d6 AM |
9320 | sect->alignment_power = 2; |
9321 | ||
936e320b | 9322 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9323 | } |
9324 | ||
58e07198 CZ |
9325 | static bfd_boolean |
9326 | elfcore_make_auxv_note_section (bfd *abfd, Elf_Internal_Note *note, | |
9327 | size_t offs) | |
9328 | { | |
9329 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
9330 | SEC_HAS_CONTENTS); | |
9331 | ||
9332 | if (sect == NULL) | |
9333 | return FALSE; | |
9334 | ||
9335 | sect->size = note->descsz - offs; | |
9336 | sect->filepos = note->descpos + offs; | |
9337 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
9338 | ||
9339 | return TRUE; | |
9340 | } | |
9341 | ||
252b5132 | 9342 | /* prstatus_t exists on: |
4a938328 | 9343 | solaris 2.5+ |
252b5132 RH |
9344 | linux 2.[01] + glibc |
9345 | unixware 4.2 | |
9346 | */ | |
9347 | ||
9348 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9349 | |
b34976b6 | 9350 | static bfd_boolean |
217aa764 | 9351 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9352 | { |
eea6121a | 9353 | size_t size; |
7ee38065 | 9354 | int offset; |
252b5132 | 9355 | |
4a938328 MS |
9356 | if (note->descsz == sizeof (prstatus_t)) |
9357 | { | |
9358 | prstatus_t prstat; | |
252b5132 | 9359 | |
eea6121a | 9360 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9361 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9362 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9363 | |
fa49d224 NC |
9364 | /* Do not overwrite the core signal if it |
9365 | has already been set by another thread. */ | |
228e534f AM |
9366 | if (elf_tdata (abfd)->core->signal == 0) |
9367 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9368 | if (elf_tdata (abfd)->core->pid == 0) | |
9369 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9370 | |
4a938328 MS |
9371 | /* pr_who exists on: |
9372 | solaris 2.5+ | |
9373 | unixware 4.2 | |
9374 | pr_who doesn't exist on: | |
9375 | linux 2.[01] | |
9376 | */ | |
252b5132 | 9377 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9378 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9379 | #else |
228e534f | 9380 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9381 | #endif |
4a938328 | 9382 | } |
7ee38065 | 9383 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9384 | else if (note->descsz == sizeof (prstatus32_t)) |
9385 | { | |
9386 | /* 64-bit host, 32-bit corefile */ | |
9387 | prstatus32_t prstat; | |
9388 | ||
eea6121a | 9389 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9390 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9391 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9392 | ||
fa49d224 NC |
9393 | /* Do not overwrite the core signal if it |
9394 | has already been set by another thread. */ | |
228e534f AM |
9395 | if (elf_tdata (abfd)->core->signal == 0) |
9396 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9397 | if (elf_tdata (abfd)->core->pid == 0) | |
9398 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9399 | |
9400 | /* pr_who exists on: | |
9401 | solaris 2.5+ | |
9402 | unixware 4.2 | |
9403 | pr_who doesn't exist on: | |
9404 | linux 2.[01] | |
9405 | */ | |
7ee38065 | 9406 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9407 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9408 | #else |
228e534f | 9409 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9410 | #endif |
9411 | } | |
7ee38065 | 9412 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9413 | else |
9414 | { | |
9415 | /* Fail - we don't know how to handle any other | |
9416 | note size (ie. data object type). */ | |
b34976b6 | 9417 | return TRUE; |
4a938328 | 9418 | } |
252b5132 | 9419 | |
bb0082d6 | 9420 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9421 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9422 | size, note->descpos + offset); |
252b5132 RH |
9423 | } |
9424 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9425 | ||
bb0082d6 | 9426 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9427 | static bfd_boolean |
217aa764 AM |
9428 | elfcore_make_note_pseudosection (bfd *abfd, |
9429 | char *name, | |
9430 | Elf_Internal_Note *note) | |
252b5132 | 9431 | { |
936e320b AM |
9432 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9433 | note->descsz, note->descpos); | |
252b5132 RH |
9434 | } |
9435 | ||
ff08c6bb JB |
9436 | /* There isn't a consistent prfpregset_t across platforms, |
9437 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9438 | data structure apart. */ |
9439 | ||
b34976b6 | 9440 | static bfd_boolean |
217aa764 | 9441 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9442 | { |
9443 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9444 | } | |
9445 | ||
ff08c6bb | 9446 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9447 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9448 | literally. */ |
c044fabd | 9449 | |
b34976b6 | 9450 | static bfd_boolean |
217aa764 | 9451 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9452 | { |
9453 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9454 | } | |
9455 | ||
4339cae0 L |
9456 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9457 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9458 | contents literally. */ | |
9459 | ||
9460 | static bfd_boolean | |
9461 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9462 | { | |
9463 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9464 | } | |
9465 | ||
97753bd5 AM |
9466 | static bfd_boolean |
9467 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9468 | { | |
9469 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9470 | } | |
9471 | ||
89eeb0bc LM |
9472 | static bfd_boolean |
9473 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9474 | { | |
9475 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9476 | } | |
97753bd5 | 9477 | |
cb2366c1 EBM |
9478 | static bfd_boolean |
9479 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9480 | { | |
9481 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9482 | } | |
9483 | ||
9484 | static bfd_boolean | |
9485 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9486 | { | |
9487 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9488 | } | |
9489 | ||
9490 | static bfd_boolean | |
9491 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9492 | { | |
9493 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9494 | } | |
9495 | ||
9496 | static bfd_boolean | |
9497 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9498 | { | |
9499 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9500 | } | |
9501 | ||
9502 | static bfd_boolean | |
9503 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9504 | { | |
9505 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9506 | } | |
9507 | ||
9508 | static bfd_boolean | |
9509 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9510 | { | |
9511 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9512 | } | |
9513 | ||
9514 | static bfd_boolean | |
9515 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9516 | { | |
9517 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9518 | } | |
9519 | ||
9520 | static bfd_boolean | |
9521 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9522 | { | |
9523 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9524 | } | |
9525 | ||
9526 | static bfd_boolean | |
9527 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9528 | { | |
9529 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9530 | } | |
9531 | ||
9532 | static bfd_boolean | |
9533 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9534 | { | |
9535 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9536 | } | |
9537 | ||
9538 | static bfd_boolean | |
9539 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9540 | { | |
9541 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9542 | } | |
9543 | ||
9544 | static bfd_boolean | |
9545 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9546 | { | |
9547 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9548 | } | |
9549 | ||
9550 | static bfd_boolean | |
9551 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9552 | { | |
9553 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9554 | } | |
9555 | ||
0675e188 UW |
9556 | static bfd_boolean |
9557 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9558 | { | |
9559 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9560 | } | |
9561 | ||
d7eeb400 MS |
9562 | static bfd_boolean |
9563 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9564 | { | |
9565 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9566 | } | |
9567 | ||
9568 | static bfd_boolean | |
9569 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9570 | { | |
9571 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9572 | } | |
9573 | ||
9574 | static bfd_boolean | |
9575 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9576 | { | |
9577 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9578 | } | |
9579 | ||
9580 | static bfd_boolean | |
9581 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9582 | { | |
9583 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9584 | } | |
9585 | ||
9586 | static bfd_boolean | |
9587 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9588 | { | |
9589 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9590 | } | |
9591 | ||
355b81d9 UW |
9592 | static bfd_boolean |
9593 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9594 | { | |
9595 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9596 | } | |
9597 | ||
9598 | static bfd_boolean | |
9599 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9600 | { | |
9601 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9602 | } | |
9603 | ||
abb3f6cc NC |
9604 | static bfd_boolean |
9605 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9606 | { | |
9607 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9608 | } | |
9609 | ||
4ef9f41a AA |
9610 | static bfd_boolean |
9611 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9612 | { | |
9613 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9614 | } | |
9615 | ||
9616 | static bfd_boolean | |
9617 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9618 | { | |
9619 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9620 | } | |
9621 | ||
88ab90e8 AA |
9622 | static bfd_boolean |
9623 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9624 | { | |
9625 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9626 | } | |
9627 | ||
9628 | static bfd_boolean | |
9629 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9630 | { | |
9631 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9632 | } | |
9633 | ||
faa9a424 UW |
9634 | static bfd_boolean |
9635 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9636 | { | |
9637 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9638 | } | |
9639 | ||
652451f8 YZ |
9640 | static bfd_boolean |
9641 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9642 | { | |
9643 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9644 | } | |
9645 | ||
9646 | static bfd_boolean | |
9647 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9648 | { | |
9649 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9650 | } | |
9651 | ||
9652 | static bfd_boolean | |
9653 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9654 | { | |
9655 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9656 | } | |
9657 | ||
ad1cc4e4 AH |
9658 | static bfd_boolean |
9659 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9660 | { | |
9661 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9662 | } | |
9663 | ||
e6c3b5bf AH |
9664 | static bfd_boolean |
9665 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9666 | { | |
9667 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9668 | } | |
9669 | ||
252b5132 | 9670 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9671 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9672 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9673 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9674 | #endif | |
252b5132 RH |
9675 | #endif |
9676 | ||
9677 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9678 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9679 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9680 | typedef psinfo32_t elfcore_psinfo32_t; |
9681 | #endif | |
252b5132 RH |
9682 | #endif |
9683 | ||
252b5132 RH |
9684 | /* return a malloc'ed copy of a string at START which is at |
9685 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9686 | the copy will always have a terminating '\0'. */ |
252b5132 | 9687 | |
936e320b | 9688 | char * |
217aa764 | 9689 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9690 | { |
dc810e39 | 9691 | char *dups; |
a50b1753 | 9692 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9693 | size_t len; |
252b5132 RH |
9694 | |
9695 | if (end == NULL) | |
9696 | len = max; | |
9697 | else | |
9698 | len = end - start; | |
9699 | ||
a50b1753 | 9700 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9701 | if (dups == NULL) |
252b5132 RH |
9702 | return NULL; |
9703 | ||
dc810e39 AM |
9704 | memcpy (dups, start, len); |
9705 | dups[len] = '\0'; | |
252b5132 | 9706 | |
dc810e39 | 9707 | return dups; |
252b5132 RH |
9708 | } |
9709 | ||
bb0082d6 | 9710 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9711 | static bfd_boolean |
217aa764 | 9712 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9713 | { |
4a938328 MS |
9714 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9715 | { | |
9716 | elfcore_psinfo_t psinfo; | |
252b5132 | 9717 | |
7ee38065 | 9718 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9719 | |
335e41d4 | 9720 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9721 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9722 | #endif |
228e534f | 9723 | elf_tdata (abfd)->core->program |
936e320b AM |
9724 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9725 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9726 | |
228e534f | 9727 | elf_tdata (abfd)->core->command |
936e320b AM |
9728 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9729 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9730 | } |
7ee38065 | 9731 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9732 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9733 | { | |
9734 | /* 64-bit host, 32-bit corefile */ | |
9735 | elfcore_psinfo32_t psinfo; | |
9736 | ||
7ee38065 | 9737 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9738 | |
335e41d4 | 9739 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9740 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9741 | #endif |
228e534f | 9742 | elf_tdata (abfd)->core->program |
936e320b AM |
9743 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9744 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9745 | |
228e534f | 9746 | elf_tdata (abfd)->core->command |
936e320b AM |
9747 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9748 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9749 | } |
9750 | #endif | |
9751 | ||
9752 | else | |
9753 | { | |
9754 | /* Fail - we don't know how to handle any other | |
9755 | note size (ie. data object type). */ | |
b34976b6 | 9756 | return TRUE; |
4a938328 | 9757 | } |
252b5132 RH |
9758 | |
9759 | /* Note that for some reason, a spurious space is tacked | |
9760 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9761 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9762 | |
9763 | { | |
228e534f | 9764 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9765 | int n = strlen (command); |
9766 | ||
9767 | if (0 < n && command[n - 1] == ' ') | |
9768 | command[n - 1] = '\0'; | |
9769 | } | |
9770 | ||
b34976b6 | 9771 | return TRUE; |
252b5132 RH |
9772 | } |
9773 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9774 | ||
252b5132 | 9775 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9776 | static bfd_boolean |
217aa764 | 9777 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9778 | { |
f572a39d AM |
9779 | if (note->descsz == sizeof (pstatus_t) |
9780 | #if defined (HAVE_PXSTATUS_T) | |
9781 | || note->descsz == sizeof (pxstatus_t) | |
9782 | #endif | |
9783 | ) | |
4a938328 MS |
9784 | { |
9785 | pstatus_t pstat; | |
252b5132 | 9786 | |
4a938328 | 9787 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9788 | |
228e534f | 9789 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9790 | } |
7ee38065 | 9791 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9792 | else if (note->descsz == sizeof (pstatus32_t)) |
9793 | { | |
9794 | /* 64-bit host, 32-bit corefile */ | |
9795 | pstatus32_t pstat; | |
252b5132 | 9796 | |
4a938328 | 9797 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9798 | |
228e534f | 9799 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9800 | } |
9801 | #endif | |
252b5132 RH |
9802 | /* Could grab some more details from the "representative" |
9803 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9804 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9805 | |
b34976b6 | 9806 | return TRUE; |
252b5132 RH |
9807 | } |
9808 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9809 | ||
252b5132 | 9810 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9811 | static bfd_boolean |
217aa764 | 9812 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9813 | { |
9814 | lwpstatus_t lwpstat; | |
9815 | char buf[100]; | |
c044fabd | 9816 | char *name; |
d4c88bbb | 9817 | size_t len; |
c044fabd | 9818 | asection *sect; |
252b5132 | 9819 | |
f572a39d AM |
9820 | if (note->descsz != sizeof (lwpstat) |
9821 | #if defined (HAVE_LWPXSTATUS_T) | |
9822 | && note->descsz != sizeof (lwpxstatus_t) | |
9823 | #endif | |
9824 | ) | |
b34976b6 | 9825 | return TRUE; |
252b5132 RH |
9826 | |
9827 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9828 | ||
228e534f | 9829 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9830 | /* Do not overwrite the core signal if it has already been set by |
9831 | another thread. */ | |
228e534f AM |
9832 | if (elf_tdata (abfd)->core->signal == 0) |
9833 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9834 | |
c044fabd | 9835 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9836 | |
9837 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9838 | len = strlen (buf) + 1; |
217aa764 | 9839 | name = bfd_alloc (abfd, len); |
252b5132 | 9840 | if (name == NULL) |
b34976b6 | 9841 | return FALSE; |
d4c88bbb | 9842 | memcpy (name, buf, len); |
252b5132 | 9843 | |
117ed4f8 | 9844 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9845 | if (sect == NULL) |
b34976b6 | 9846 | return FALSE; |
252b5132 RH |
9847 | |
9848 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9849 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9850 | sect->filepos = note->descpos |
9851 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9852 | #endif | |
9853 | ||
9854 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9855 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9856 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9857 | #endif | |
9858 | ||
252b5132 RH |
9859 | sect->alignment_power = 2; |
9860 | ||
9861 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9862 | return FALSE; |
252b5132 RH |
9863 | |
9864 | /* Make a ".reg2/999" section */ | |
9865 | ||
9866 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9867 | len = strlen (buf) + 1; |
217aa764 | 9868 | name = bfd_alloc (abfd, len); |
252b5132 | 9869 | if (name == NULL) |
b34976b6 | 9870 | return FALSE; |
d4c88bbb | 9871 | memcpy (name, buf, len); |
252b5132 | 9872 | |
117ed4f8 | 9873 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9874 | if (sect == NULL) |
b34976b6 | 9875 | return FALSE; |
252b5132 RH |
9876 | |
9877 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9878 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9879 | sect->filepos = note->descpos |
9880 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9881 | #endif | |
9882 | ||
9883 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9884 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9885 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9886 | #endif | |
9887 | ||
252b5132 RH |
9888 | sect->alignment_power = 2; |
9889 | ||
936e320b | 9890 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9891 | } |
9892 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9893 | ||
b34976b6 | 9894 | static bfd_boolean |
217aa764 | 9895 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9896 | { |
9897 | char buf[30]; | |
c044fabd | 9898 | char *name; |
d4c88bbb | 9899 | size_t len; |
c044fabd | 9900 | asection *sect; |
4a6636fb PA |
9901 | int type; |
9902 | int is_active_thread; | |
9903 | bfd_vma base_addr; | |
16e9c715 | 9904 | |
4a6636fb | 9905 | if (note->descsz < 728) |
b34976b6 | 9906 | return TRUE; |
16e9c715 | 9907 | |
4a6636fb PA |
9908 | if (! CONST_STRNEQ (note->namedata, "win32")) |
9909 | return TRUE; | |
9910 | ||
9911 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 9912 | |
4a6636fb | 9913 | switch (type) |
16e9c715 | 9914 | { |
4a6636fb | 9915 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 9916 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 9917 | /* process_info.pid */ |
228e534f | 9918 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 9919 | /* process_info.signal */ |
228e534f | 9920 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 9921 | break; |
16e9c715 | 9922 | |
4a6636fb | 9923 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 9924 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
9925 | /* thread_info.tid */ |
9926 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 9927 | |
d4c88bbb | 9928 | len = strlen (buf) + 1; |
a50b1753 | 9929 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9930 | if (name == NULL) |
b34976b6 | 9931 | return FALSE; |
c044fabd | 9932 | |
d4c88bbb | 9933 | memcpy (name, buf, len); |
16e9c715 | 9934 | |
117ed4f8 | 9935 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 9936 | if (sect == NULL) |
b34976b6 | 9937 | return FALSE; |
c044fabd | 9938 | |
4a6636fb PA |
9939 | /* sizeof (thread_info.thread_context) */ |
9940 | sect->size = 716; | |
9941 | /* offsetof (thread_info.thread_context) */ | |
9942 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
9943 | sect->alignment_power = 2; |
9944 | ||
4a6636fb PA |
9945 | /* thread_info.is_active_thread */ |
9946 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
9947 | ||
9948 | if (is_active_thread) | |
16e9c715 | 9949 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 9950 | return FALSE; |
16e9c715 NC |
9951 | break; |
9952 | ||
4a6636fb | 9953 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 9954 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
9955 | /* module_info.base_address */ |
9956 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 9957 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 9958 | |
d4c88bbb | 9959 | len = strlen (buf) + 1; |
a50b1753 | 9960 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9961 | if (name == NULL) |
b34976b6 | 9962 | return FALSE; |
c044fabd | 9963 | |
d4c88bbb | 9964 | memcpy (name, buf, len); |
252b5132 | 9965 | |
117ed4f8 | 9966 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 9967 | |
16e9c715 | 9968 | if (sect == NULL) |
b34976b6 | 9969 | return FALSE; |
c044fabd | 9970 | |
eea6121a | 9971 | sect->size = note->descsz; |
16e9c715 | 9972 | sect->filepos = note->descpos; |
16e9c715 NC |
9973 | sect->alignment_power = 2; |
9974 | break; | |
9975 | ||
9976 | default: | |
b34976b6 | 9977 | return TRUE; |
16e9c715 NC |
9978 | } |
9979 | ||
b34976b6 | 9980 | return TRUE; |
16e9c715 | 9981 | } |
252b5132 | 9982 | |
b34976b6 | 9983 | static bfd_boolean |
217aa764 | 9984 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9985 | { |
9c5bfbb7 | 9986 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 9987 | |
252b5132 RH |
9988 | switch (note->type) |
9989 | { | |
9990 | default: | |
b34976b6 | 9991 | return TRUE; |
252b5132 | 9992 | |
252b5132 | 9993 | case NT_PRSTATUS: |
bb0082d6 AM |
9994 | if (bed->elf_backend_grok_prstatus) |
9995 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 9996 | return TRUE; |
bb0082d6 | 9997 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 9998 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 9999 | #else |
b34976b6 | 10000 | return TRUE; |
252b5132 RH |
10001 | #endif |
10002 | ||
10003 | #if defined (HAVE_PSTATUS_T) | |
10004 | case NT_PSTATUS: | |
10005 | return elfcore_grok_pstatus (abfd, note); | |
10006 | #endif | |
10007 | ||
10008 | #if defined (HAVE_LWPSTATUS_T) | |
10009 | case NT_LWPSTATUS: | |
10010 | return elfcore_grok_lwpstatus (abfd, note); | |
10011 | #endif | |
10012 | ||
10013 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
10014 | return elfcore_grok_prfpreg (abfd, note); | |
10015 | ||
c044fabd | 10016 | case NT_WIN32PSTATUS: |
16e9c715 | 10017 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 10018 | |
c044fabd | 10019 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
10020 | if (note->namesz == 6 |
10021 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
10022 | return elfcore_grok_prxfpreg (abfd, note); |
10023 | else | |
b34976b6 | 10024 | return TRUE; |
ff08c6bb | 10025 | |
4339cae0 L |
10026 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
10027 | if (note->namesz == 6 | |
10028 | && strcmp (note->namedata, "LINUX") == 0) | |
10029 | return elfcore_grok_xstatereg (abfd, note); | |
10030 | else | |
10031 | return TRUE; | |
10032 | ||
97753bd5 AM |
10033 | case NT_PPC_VMX: |
10034 | if (note->namesz == 6 | |
10035 | && strcmp (note->namedata, "LINUX") == 0) | |
10036 | return elfcore_grok_ppc_vmx (abfd, note); | |
10037 | else | |
10038 | return TRUE; | |
10039 | ||
89eeb0bc LM |
10040 | case NT_PPC_VSX: |
10041 | if (note->namesz == 6 | |
07d6d2b8 AM |
10042 | && strcmp (note->namedata, "LINUX") == 0) |
10043 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 10044 | else |
07d6d2b8 | 10045 | return TRUE; |
89eeb0bc | 10046 | |
cb2366c1 EBM |
10047 | case NT_PPC_TAR: |
10048 | if (note->namesz == 6 | |
4b24dd1a AM |
10049 | && strcmp (note->namedata, "LINUX") == 0) |
10050 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 10051 | else |
4b24dd1a | 10052 | return TRUE; |
cb2366c1 EBM |
10053 | |
10054 | case NT_PPC_PPR: | |
10055 | if (note->namesz == 6 | |
4b24dd1a AM |
10056 | && strcmp (note->namedata, "LINUX") == 0) |
10057 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 10058 | else |
4b24dd1a | 10059 | return TRUE; |
cb2366c1 EBM |
10060 | |
10061 | case NT_PPC_DSCR: | |
10062 | if (note->namesz == 6 | |
4b24dd1a AM |
10063 | && strcmp (note->namedata, "LINUX") == 0) |
10064 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 10065 | else |
4b24dd1a | 10066 | return TRUE; |
cb2366c1 EBM |
10067 | |
10068 | case NT_PPC_EBB: | |
10069 | if (note->namesz == 6 | |
4b24dd1a AM |
10070 | && strcmp (note->namedata, "LINUX") == 0) |
10071 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 10072 | else |
4b24dd1a | 10073 | return TRUE; |
cb2366c1 EBM |
10074 | |
10075 | case NT_PPC_PMU: | |
10076 | if (note->namesz == 6 | |
4b24dd1a AM |
10077 | && strcmp (note->namedata, "LINUX") == 0) |
10078 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 10079 | else |
4b24dd1a | 10080 | return TRUE; |
cb2366c1 EBM |
10081 | |
10082 | case NT_PPC_TM_CGPR: | |
10083 | if (note->namesz == 6 | |
4b24dd1a AM |
10084 | && strcmp (note->namedata, "LINUX") == 0) |
10085 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 10086 | else |
4b24dd1a | 10087 | return TRUE; |
cb2366c1 EBM |
10088 | |
10089 | case NT_PPC_TM_CFPR: | |
10090 | if (note->namesz == 6 | |
4b24dd1a AM |
10091 | && strcmp (note->namedata, "LINUX") == 0) |
10092 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 10093 | else |
4b24dd1a | 10094 | return TRUE; |
cb2366c1 EBM |
10095 | |
10096 | case NT_PPC_TM_CVMX: | |
10097 | if (note->namesz == 6 | |
4b24dd1a AM |
10098 | && strcmp (note->namedata, "LINUX") == 0) |
10099 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 10100 | else |
4b24dd1a | 10101 | return TRUE; |
cb2366c1 EBM |
10102 | |
10103 | case NT_PPC_TM_CVSX: | |
10104 | if (note->namesz == 6 | |
4b24dd1a AM |
10105 | && strcmp (note->namedata, "LINUX") == 0) |
10106 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10107 | else |
4b24dd1a | 10108 | return TRUE; |
cb2366c1 EBM |
10109 | |
10110 | case NT_PPC_TM_SPR: | |
10111 | if (note->namesz == 6 | |
4b24dd1a AM |
10112 | && strcmp (note->namedata, "LINUX") == 0) |
10113 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10114 | else |
4b24dd1a | 10115 | return TRUE; |
cb2366c1 EBM |
10116 | |
10117 | case NT_PPC_TM_CTAR: | |
10118 | if (note->namesz == 6 | |
4b24dd1a AM |
10119 | && strcmp (note->namedata, "LINUX") == 0) |
10120 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10121 | else |
4b24dd1a | 10122 | return TRUE; |
cb2366c1 EBM |
10123 | |
10124 | case NT_PPC_TM_CPPR: | |
10125 | if (note->namesz == 6 | |
4b24dd1a AM |
10126 | && strcmp (note->namedata, "LINUX") == 0) |
10127 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10128 | else |
4b24dd1a | 10129 | return TRUE; |
cb2366c1 EBM |
10130 | |
10131 | case NT_PPC_TM_CDSCR: | |
10132 | if (note->namesz == 6 | |
4b24dd1a AM |
10133 | && strcmp (note->namedata, "LINUX") == 0) |
10134 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10135 | else |
4b24dd1a | 10136 | return TRUE; |
cb2366c1 | 10137 | |
0675e188 UW |
10138 | case NT_S390_HIGH_GPRS: |
10139 | if (note->namesz == 6 | |
07d6d2b8 AM |
10140 | && strcmp (note->namedata, "LINUX") == 0) |
10141 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10142 | else |
07d6d2b8 | 10143 | return TRUE; |
0675e188 | 10144 | |
d7eeb400 MS |
10145 | case NT_S390_TIMER: |
10146 | if (note->namesz == 6 | |
07d6d2b8 AM |
10147 | && strcmp (note->namedata, "LINUX") == 0) |
10148 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10149 | else |
07d6d2b8 | 10150 | return TRUE; |
d7eeb400 MS |
10151 | |
10152 | case NT_S390_TODCMP: | |
10153 | if (note->namesz == 6 | |
07d6d2b8 AM |
10154 | && strcmp (note->namedata, "LINUX") == 0) |
10155 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10156 | else |
07d6d2b8 | 10157 | return TRUE; |
d7eeb400 MS |
10158 | |
10159 | case NT_S390_TODPREG: | |
10160 | if (note->namesz == 6 | |
07d6d2b8 AM |
10161 | && strcmp (note->namedata, "LINUX") == 0) |
10162 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10163 | else |
07d6d2b8 | 10164 | return TRUE; |
d7eeb400 MS |
10165 | |
10166 | case NT_S390_CTRS: | |
10167 | if (note->namesz == 6 | |
07d6d2b8 AM |
10168 | && strcmp (note->namedata, "LINUX") == 0) |
10169 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10170 | else |
07d6d2b8 | 10171 | return TRUE; |
d7eeb400 MS |
10172 | |
10173 | case NT_S390_PREFIX: | |
10174 | if (note->namesz == 6 | |
07d6d2b8 AM |
10175 | && strcmp (note->namedata, "LINUX") == 0) |
10176 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10177 | else |
07d6d2b8 | 10178 | return TRUE; |
d7eeb400 | 10179 | |
355b81d9 UW |
10180 | case NT_S390_LAST_BREAK: |
10181 | if (note->namesz == 6 | |
07d6d2b8 AM |
10182 | && strcmp (note->namedata, "LINUX") == 0) |
10183 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10184 | else |
07d6d2b8 | 10185 | return TRUE; |
355b81d9 UW |
10186 | |
10187 | case NT_S390_SYSTEM_CALL: | |
10188 | if (note->namesz == 6 | |
07d6d2b8 AM |
10189 | && strcmp (note->namedata, "LINUX") == 0) |
10190 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10191 | else |
07d6d2b8 | 10192 | return TRUE; |
355b81d9 | 10193 | |
abb3f6cc NC |
10194 | case NT_S390_TDB: |
10195 | if (note->namesz == 6 | |
07d6d2b8 AM |
10196 | && strcmp (note->namedata, "LINUX") == 0) |
10197 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10198 | else |
07d6d2b8 | 10199 | return TRUE; |
abb3f6cc | 10200 | |
4ef9f41a AA |
10201 | case NT_S390_VXRS_LOW: |
10202 | if (note->namesz == 6 | |
10203 | && strcmp (note->namedata, "LINUX") == 0) | |
10204 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10205 | else | |
10206 | return TRUE; | |
10207 | ||
10208 | case NT_S390_VXRS_HIGH: | |
10209 | if (note->namesz == 6 | |
10210 | && strcmp (note->namedata, "LINUX") == 0) | |
10211 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10212 | else | |
10213 | return TRUE; | |
10214 | ||
88ab90e8 AA |
10215 | case NT_S390_GS_CB: |
10216 | if (note->namesz == 6 | |
10217 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10218 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10219 | else |
10220 | return TRUE; | |
10221 | ||
10222 | case NT_S390_GS_BC: | |
10223 | if (note->namesz == 6 | |
10224 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10225 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10226 | else |
10227 | return TRUE; | |
10228 | ||
faa9a424 UW |
10229 | case NT_ARM_VFP: |
10230 | if (note->namesz == 6 | |
10231 | && strcmp (note->namedata, "LINUX") == 0) | |
10232 | return elfcore_grok_arm_vfp (abfd, note); | |
10233 | else | |
10234 | return TRUE; | |
10235 | ||
652451f8 YZ |
10236 | case NT_ARM_TLS: |
10237 | if (note->namesz == 6 | |
10238 | && strcmp (note->namedata, "LINUX") == 0) | |
10239 | return elfcore_grok_aarch_tls (abfd, note); | |
10240 | else | |
10241 | return TRUE; | |
10242 | ||
10243 | case NT_ARM_HW_BREAK: | |
10244 | if (note->namesz == 6 | |
10245 | && strcmp (note->namedata, "LINUX") == 0) | |
10246 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10247 | else | |
10248 | return TRUE; | |
10249 | ||
10250 | case NT_ARM_HW_WATCH: | |
10251 | if (note->namesz == 6 | |
10252 | && strcmp (note->namedata, "LINUX") == 0) | |
10253 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10254 | else | |
10255 | return TRUE; | |
10256 | ||
ad1cc4e4 AH |
10257 | case NT_ARM_SVE: |
10258 | if (note->namesz == 6 | |
10259 | && strcmp (note->namedata, "LINUX") == 0) | |
10260 | return elfcore_grok_aarch_sve (abfd, note); | |
10261 | else | |
10262 | return TRUE; | |
10263 | ||
e6c3b5bf AH |
10264 | case NT_ARM_PAC_MASK: |
10265 | if (note->namesz == 6 | |
10266 | && strcmp (note->namedata, "LINUX") == 0) | |
10267 | return elfcore_grok_aarch_pauth (abfd, note); | |
10268 | else | |
10269 | return TRUE; | |
10270 | ||
252b5132 RH |
10271 | case NT_PRPSINFO: |
10272 | case NT_PSINFO: | |
bb0082d6 AM |
10273 | if (bed->elf_backend_grok_psinfo) |
10274 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10275 | return TRUE; |
bb0082d6 | 10276 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10277 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10278 | #else |
b34976b6 | 10279 | return TRUE; |
252b5132 | 10280 | #endif |
3333a7c3 RM |
10281 | |
10282 | case NT_AUXV: | |
58e07198 | 10283 | return elfcore_make_auxv_note_section (abfd, note, 0); |
9015683b | 10284 | |
451b7c33 TT |
10285 | case NT_FILE: |
10286 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10287 | note); | |
10288 | ||
9015683b TT |
10289 | case NT_SIGINFO: |
10290 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10291 | note); | |
5b2c414d | 10292 | |
252b5132 RH |
10293 | } |
10294 | } | |
10295 | ||
718175fa JK |
10296 | static bfd_boolean |
10297 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10298 | { | |
c74f7d1c | 10299 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10300 | |
10301 | if (note->descsz == 0) | |
10302 | return FALSE; | |
10303 | ||
c74f7d1c JT |
10304 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10305 | if (build_id == NULL) | |
718175fa JK |
10306 | return FALSE; |
10307 | ||
c74f7d1c JT |
10308 | build_id->size = note->descsz; |
10309 | memcpy (build_id->data, note->descdata, note->descsz); | |
10310 | abfd->build_id = build_id; | |
718175fa JK |
10311 | |
10312 | return TRUE; | |
10313 | } | |
10314 | ||
10315 | static bfd_boolean | |
10316 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10317 | { | |
10318 | switch (note->type) | |
10319 | { | |
10320 | default: | |
10321 | return TRUE; | |
10322 | ||
46bed679 L |
10323 | case NT_GNU_PROPERTY_TYPE_0: |
10324 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10325 | ||
718175fa JK |
10326 | case NT_GNU_BUILD_ID: |
10327 | return elfobj_grok_gnu_build_id (abfd, note); | |
10328 | } | |
10329 | } | |
10330 | ||
e21e5835 NC |
10331 | static bfd_boolean |
10332 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10333 | { | |
10334 | struct sdt_note *cur = | |
7a6e0d89 AM |
10335 | (struct sdt_note *) bfd_alloc (abfd, |
10336 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10337 | |
10338 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10339 | cur->size = (bfd_size_type) note->descsz; | |
10340 | memcpy (cur->data, note->descdata, note->descsz); | |
10341 | ||
10342 | elf_tdata (abfd)->sdt_note_head = cur; | |
10343 | ||
10344 | return TRUE; | |
10345 | } | |
10346 | ||
10347 | static bfd_boolean | |
10348 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10349 | { | |
10350 | switch (note->type) | |
10351 | { | |
10352 | case NT_STAPSDT: | |
10353 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10354 | ||
10355 | default: | |
10356 | return TRUE; | |
10357 | } | |
10358 | } | |
10359 | ||
aa1ed4a9 JB |
10360 | static bfd_boolean |
10361 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10362 | { | |
10363 | size_t offset; | |
10364 | ||
b5430a3c | 10365 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10366 | { |
b5430a3c | 10367 | case ELFCLASS32: |
0064d223 JB |
10368 | if (note->descsz < 108) |
10369 | return FALSE; | |
aa1ed4a9 JB |
10370 | break; |
10371 | ||
b5430a3c | 10372 | case ELFCLASS64: |
0064d223 JB |
10373 | if (note->descsz < 120) |
10374 | return FALSE; | |
aa1ed4a9 JB |
10375 | break; |
10376 | ||
10377 | default: | |
10378 | return FALSE; | |
10379 | } | |
10380 | ||
0064d223 JB |
10381 | /* Check for version 1 in pr_version. */ |
10382 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10383 | return FALSE; | |
80a04378 | 10384 | |
0064d223 JB |
10385 | offset = 4; |
10386 | ||
10387 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10388 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10389 | offset += 4; |
10390 | else | |
10391 | { | |
10392 | offset += 4; /* Padding before pr_psinfosz. */ | |
10393 | offset += 8; | |
10394 | } | |
10395 | ||
aa1ed4a9 JB |
10396 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10397 | elf_tdata (abfd)->core->program | |
10398 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10399 | offset += 17; | |
10400 | ||
10401 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10402 | elf_tdata (abfd)->core->command | |
10403 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10404 | offset += 81; |
10405 | ||
10406 | /* Padding before pr_pid. */ | |
10407 | offset += 2; | |
10408 | ||
10409 | /* The pr_pid field was added in version "1a". */ | |
10410 | if (note->descsz < offset + 4) | |
10411 | return TRUE; | |
10412 | ||
10413 | elf_tdata (abfd)->core->pid | |
10414 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10415 | |
10416 | return TRUE; | |
10417 | } | |
10418 | ||
10419 | static bfd_boolean | |
10420 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10421 | { | |
10422 | size_t offset; | |
10423 | size_t size; | |
24d3e51b | 10424 | size_t min_size; |
aa1ed4a9 | 10425 | |
24d3e51b NC |
10426 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10427 | Also compute minimum size of this note. */ | |
b5430a3c | 10428 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10429 | { |
b5430a3c | 10430 | case ELFCLASS32: |
24d3e51b NC |
10431 | offset = 4 + 4; |
10432 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10433 | break; |
10434 | ||
b5430a3c | 10435 | case ELFCLASS64: |
24d3e51b NC |
10436 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10437 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10438 | break; |
10439 | ||
10440 | default: | |
10441 | return FALSE; | |
10442 | } | |
10443 | ||
24d3e51b NC |
10444 | if (note->descsz < min_size) |
10445 | return FALSE; | |
10446 | ||
10447 | /* Check for version 1 in pr_version. */ | |
10448 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10449 | return FALSE; | |
aa1ed4a9 | 10450 | |
24d3e51b NC |
10451 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10452 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10453 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10454 | { |
10455 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10456 | offset += 4 * 2; | |
10457 | } | |
b5430a3c | 10458 | else |
24d3e51b NC |
10459 | { |
10460 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10461 | offset += 8 * 2; | |
10462 | } | |
aa1ed4a9 | 10463 | |
24d3e51b | 10464 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10465 | offset += 4; |
10466 | ||
24d3e51b | 10467 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10468 | if (elf_tdata (abfd)->core->signal == 0) |
10469 | elf_tdata (abfd)->core->signal | |
10470 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10471 | offset += 4; | |
10472 | ||
24d3e51b | 10473 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10474 | elf_tdata (abfd)->core->lwpid |
10475 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10476 | offset += 4; | |
10477 | ||
24d3e51b | 10478 | /* Padding before pr_reg. */ |
b5430a3c | 10479 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10480 | offset += 4; |
10481 | ||
24d3e51b NC |
10482 | /* Make sure that there is enough data remaining in the note. */ |
10483 | if ((note->descsz - offset) < size) | |
10484 | return FALSE; | |
10485 | ||
aa1ed4a9 JB |
10486 | /* Make a ".reg/999" section and a ".reg" section. */ |
10487 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10488 | size, note->descpos + offset); | |
10489 | } | |
10490 | ||
10491 | static bfd_boolean | |
10492 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10493 | { | |
544c67cd JB |
10494 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10495 | ||
aa1ed4a9 JB |
10496 | switch (note->type) |
10497 | { | |
10498 | case NT_PRSTATUS: | |
544c67cd JB |
10499 | if (bed->elf_backend_grok_freebsd_prstatus) |
10500 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10501 | return TRUE; | |
aa1ed4a9 JB |
10502 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10503 | ||
10504 | case NT_FPREGSET: | |
10505 | return elfcore_grok_prfpreg (abfd, note); | |
10506 | ||
10507 | case NT_PRPSINFO: | |
10508 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10509 | ||
10510 | case NT_FREEBSD_THRMISC: | |
10511 | if (note->namesz == 8) | |
10512 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10513 | else | |
10514 | return TRUE; | |
10515 | ||
ddb2bbcf JB |
10516 | case NT_FREEBSD_PROCSTAT_PROC: |
10517 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10518 | note); | |
10519 | ||
10520 | case NT_FREEBSD_PROCSTAT_FILES: | |
10521 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10522 | note); | |
10523 | ||
10524 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10525 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10526 | note); | |
10527 | ||
3350c5f5 | 10528 | case NT_FREEBSD_PROCSTAT_AUXV: |
58e07198 | 10529 | return elfcore_make_auxv_note_section (abfd, note, 4); |
3350c5f5 | 10530 | |
aa1ed4a9 JB |
10531 | case NT_X86_XSTATE: |
10532 | if (note->namesz == 8) | |
10533 | return elfcore_grok_xstatereg (abfd, note); | |
10534 | else | |
10535 | return TRUE; | |
10536 | ||
e6f3b9c3 JB |
10537 | case NT_FREEBSD_PTLWPINFO: |
10538 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10539 | note); | |
10540 | ||
6d5be5d6 JB |
10541 | case NT_ARM_VFP: |
10542 | return elfcore_grok_arm_vfp (abfd, note); | |
10543 | ||
aa1ed4a9 JB |
10544 | default: |
10545 | return TRUE; | |
10546 | } | |
10547 | } | |
10548 | ||
b34976b6 | 10549 | static bfd_boolean |
217aa764 | 10550 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10551 | { |
10552 | char *cp; | |
10553 | ||
10554 | cp = strchr (note->namedata, '@'); | |
10555 | if (cp != NULL) | |
10556 | { | |
d2b64500 | 10557 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10558 | return TRUE; |
50b2bdb7 | 10559 | } |
b34976b6 | 10560 | return FALSE; |
50b2bdb7 AM |
10561 | } |
10562 | ||
b34976b6 | 10563 | static bfd_boolean |
217aa764 | 10564 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10565 | { |
80a04378 NC |
10566 | if (note->descsz <= 0x7c + 31) |
10567 | return FALSE; | |
10568 | ||
50b2bdb7 | 10569 | /* Signal number at offset 0x08. */ |
228e534f | 10570 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10571 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10572 | ||
10573 | /* Process ID at offset 0x50. */ | |
228e534f | 10574 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10575 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10576 | ||
10577 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10578 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10579 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10580 | ||
7720ba9f MK |
10581 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10582 | note); | |
50b2bdb7 AM |
10583 | } |
10584 | ||
b34976b6 | 10585 | static bfd_boolean |
217aa764 | 10586 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10587 | { |
10588 | int lwp; | |
10589 | ||
10590 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10591 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10592 | |
58e07198 | 10593 | switch (note->type) |
50b2bdb7 | 10594 | { |
58e07198 | 10595 | case NT_NETBSDCORE_PROCINFO: |
50b2bdb7 | 10596 | /* NetBSD-specific core "procinfo". Note that we expect to |
08a40648 AM |
10597 | find this note before any of the others, which is fine, |
10598 | since the kernel writes this note out first when it | |
10599 | creates a core file. */ | |
50b2bdb7 | 10600 | return elfcore_grok_netbsd_procinfo (abfd, note); |
58e07198 CZ |
10601 | #ifdef NT_NETBSDCORE_AUXV |
10602 | case NT_NETBSDCORE_AUXV: | |
10603 | /* NetBSD-specific Elf Auxiliary Vector data. */ | |
10604 | return elfcore_make_auxv_note_section (abfd, note, 4); | |
10605 | #endif | |
10606 | default: | |
10607 | break; | |
50b2bdb7 AM |
10608 | } |
10609 | ||
58e07198 | 10610 | /* As of March 2017 there are no other machine-independent notes |
b4db1224 JT |
10611 | defined for NetBSD core files. If the note type is less |
10612 | than the start of the machine-dependent note types, we don't | |
10613 | understand it. */ | |
47d9a591 | 10614 | |
b4db1224 | 10615 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10616 | return TRUE; |
50b2bdb7 AM |
10617 | |
10618 | ||
10619 | switch (bfd_get_arch (abfd)) | |
10620 | { | |
08a40648 AM |
10621 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10622 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10623 | |
10624 | case bfd_arch_alpha: | |
10625 | case bfd_arch_sparc: | |
10626 | switch (note->type) | |
08a40648 AM |
10627 | { |
10628 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10629 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10630 | |
08a40648 AM |
10631 | case NT_NETBSDCORE_FIRSTMACH+2: |
10632 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10633 | |
08a40648 AM |
10634 | default: |
10635 | return TRUE; | |
10636 | } | |
50b2bdb7 | 10637 | |
58e07198 CZ |
10638 | /* On SuperH, PT_GETREGS == mach+3 and PT_GETFPREGS == mach+5. |
10639 | There's also old PT___GETREGS40 == mach + 1 for old reg | |
10640 | structure which lacks GBR. */ | |
10641 | ||
10642 | case bfd_arch_sh: | |
10643 | switch (note->type) | |
10644 | { | |
10645 | case NT_NETBSDCORE_FIRSTMACH+3: | |
10646 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10647 | ||
10648 | case NT_NETBSDCORE_FIRSTMACH+5: | |
10649 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10650 | ||
10651 | default: | |
10652 | return TRUE; | |
10653 | } | |
10654 | ||
08a40648 AM |
10655 | /* On all other arch's, PT_GETREGS == mach+1 and |
10656 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10657 | |
10658 | default: | |
10659 | switch (note->type) | |
08a40648 AM |
10660 | { |
10661 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10662 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10663 | |
08a40648 AM |
10664 | case NT_NETBSDCORE_FIRSTMACH+3: |
10665 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10666 | |
08a40648 AM |
10667 | default: |
10668 | return TRUE; | |
10669 | } | |
50b2bdb7 AM |
10670 | } |
10671 | /* NOTREACHED */ | |
10672 | } | |
10673 | ||
67cc5033 MK |
10674 | static bfd_boolean |
10675 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10676 | { | |
80a04378 NC |
10677 | if (note->descsz <= 0x48 + 31) |
10678 | return FALSE; | |
10679 | ||
67cc5033 | 10680 | /* Signal number at offset 0x08. */ |
228e534f | 10681 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10682 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10683 | ||
10684 | /* Process ID at offset 0x20. */ | |
228e534f | 10685 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10686 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10687 | ||
10688 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10689 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10690 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10691 | ||
10692 | return TRUE; | |
10693 | } | |
10694 | ||
10695 | static bfd_boolean | |
10696 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10697 | { | |
10698 | if (note->type == NT_OPENBSD_PROCINFO) | |
10699 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10700 | ||
10701 | if (note->type == NT_OPENBSD_REGS) | |
10702 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10703 | ||
10704 | if (note->type == NT_OPENBSD_FPREGS) | |
10705 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10706 | ||
10707 | if (note->type == NT_OPENBSD_XFPREGS) | |
10708 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10709 | ||
10710 | if (note->type == NT_OPENBSD_AUXV) | |
58e07198 | 10711 | return elfcore_make_auxv_note_section (abfd, note, 0); |
67cc5033 MK |
10712 | |
10713 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10714 | { | |
10715 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10716 | SEC_HAS_CONTENTS); | |
10717 | ||
10718 | if (sect == NULL) | |
10719 | return FALSE; | |
10720 | sect->size = note->descsz; | |
10721 | sect->filepos = note->descpos; | |
10722 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10723 | ||
10724 | return TRUE; | |
10725 | } | |
10726 | ||
10727 | return TRUE; | |
10728 | } | |
10729 | ||
07c6e936 | 10730 | static bfd_boolean |
d3fd4074 | 10731 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10732 | { |
10733 | void *ddata = note->descdata; | |
10734 | char buf[100]; | |
10735 | char *name; | |
10736 | asection *sect; | |
f8843e87 AM |
10737 | short sig; |
10738 | unsigned flags; | |
07c6e936 | 10739 | |
80a04378 NC |
10740 | if (note->descsz < 16) |
10741 | return FALSE; | |
10742 | ||
07c6e936 | 10743 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10744 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10745 | |
f8843e87 AM |
10746 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10747 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10748 | ||
10749 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10750 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10751 | |
10752 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10753 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10754 | { | |
228e534f AM |
10755 | elf_tdata (abfd)->core->signal = sig; |
10756 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10757 | } |
07c6e936 | 10758 | |
f8843e87 AM |
10759 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10760 | do not come from signals so we make sure we set the current | |
10761 | thread just in case. */ | |
10762 | if (flags & 0x00000080) | |
228e534f | 10763 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10764 | |
10765 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10766 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10767 | |
a50b1753 | 10768 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10769 | if (name == NULL) |
10770 | return FALSE; | |
10771 | strcpy (name, buf); | |
10772 | ||
117ed4f8 | 10773 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10774 | if (sect == NULL) |
10775 | return FALSE; | |
10776 | ||
07d6d2b8 AM |
10777 | sect->size = note->descsz; |
10778 | sect->filepos = note->descpos; | |
07c6e936 NC |
10779 | sect->alignment_power = 2; |
10780 | ||
10781 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10782 | } | |
10783 | ||
10784 | static bfd_boolean | |
d69f560c KW |
10785 | elfcore_grok_nto_regs (bfd *abfd, |
10786 | Elf_Internal_Note *note, | |
d3fd4074 | 10787 | long tid, |
d69f560c | 10788 | char *base) |
07c6e936 NC |
10789 | { |
10790 | char buf[100]; | |
10791 | char *name; | |
10792 | asection *sect; | |
10793 | ||
d69f560c | 10794 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10795 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10796 | |
a50b1753 | 10797 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10798 | if (name == NULL) |
10799 | return FALSE; | |
10800 | strcpy (name, buf); | |
10801 | ||
117ed4f8 | 10802 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10803 | if (sect == NULL) |
10804 | return FALSE; | |
10805 | ||
07d6d2b8 AM |
10806 | sect->size = note->descsz; |
10807 | sect->filepos = note->descpos; | |
07c6e936 NC |
10808 | sect->alignment_power = 2; |
10809 | ||
f8843e87 | 10810 | /* This is the current thread. */ |
228e534f | 10811 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10812 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10813 | |
10814 | return TRUE; | |
07c6e936 NC |
10815 | } |
10816 | ||
10817 | #define BFD_QNT_CORE_INFO 7 | |
10818 | #define BFD_QNT_CORE_STATUS 8 | |
10819 | #define BFD_QNT_CORE_GREG 9 | |
10820 | #define BFD_QNT_CORE_FPREG 10 | |
10821 | ||
10822 | static bfd_boolean | |
217aa764 | 10823 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10824 | { |
10825 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10826 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10827 | function. */ |
d3fd4074 | 10828 | static long tid = 1; |
07c6e936 NC |
10829 | |
10830 | switch (note->type) | |
10831 | { | |
d69f560c KW |
10832 | case BFD_QNT_CORE_INFO: |
10833 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10834 | case BFD_QNT_CORE_STATUS: | |
10835 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10836 | case BFD_QNT_CORE_GREG: | |
10837 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10838 | case BFD_QNT_CORE_FPREG: | |
10839 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10840 | default: | |
10841 | return TRUE; | |
07c6e936 NC |
10842 | } |
10843 | } | |
10844 | ||
b15fa79e AM |
10845 | static bfd_boolean |
10846 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10847 | { | |
10848 | char *name; | |
10849 | asection *sect; | |
10850 | size_t len; | |
10851 | ||
10852 | /* Use note name as section name. */ | |
10853 | len = note->namesz; | |
a50b1753 | 10854 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10855 | if (name == NULL) |
10856 | return FALSE; | |
10857 | memcpy (name, note->namedata, len); | |
10858 | name[len - 1] = '\0'; | |
10859 | ||
10860 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10861 | if (sect == NULL) | |
10862 | return FALSE; | |
10863 | ||
07d6d2b8 AM |
10864 | sect->size = note->descsz; |
10865 | sect->filepos = note->descpos; | |
b15fa79e AM |
10866 | sect->alignment_power = 1; |
10867 | ||
10868 | return TRUE; | |
10869 | } | |
10870 | ||
7c76fa91 MS |
10871 | /* Function: elfcore_write_note |
10872 | ||
47d9a591 | 10873 | Inputs: |
a39f3346 | 10874 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10875 | name of note |
10876 | type of note | |
10877 | data for note | |
10878 | size of data for note | |
10879 | ||
a39f3346 AM |
10880 | Writes note to end of buffer. ELF64 notes are written exactly as |
10881 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10882 | that they ought to have 8-byte namesz and descsz field, and have | |
10883 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10884 | ||
7c76fa91 | 10885 | Return: |
a39f3346 | 10886 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10887 | |
10888 | char * | |
a39f3346 | 10889 | elfcore_write_note (bfd *abfd, |
217aa764 | 10890 | char *buf, |
a39f3346 | 10891 | int *bufsiz, |
217aa764 | 10892 | const char *name, |
a39f3346 | 10893 | int type, |
217aa764 | 10894 | const void *input, |
a39f3346 | 10895 | int size) |
7c76fa91 MS |
10896 | { |
10897 | Elf_External_Note *xnp; | |
d4c88bbb | 10898 | size_t namesz; |
d4c88bbb | 10899 | size_t newspace; |
a39f3346 | 10900 | char *dest; |
7c76fa91 | 10901 | |
d4c88bbb | 10902 | namesz = 0; |
d4c88bbb | 10903 | if (name != NULL) |
a39f3346 | 10904 | namesz = strlen (name) + 1; |
d4c88bbb | 10905 | |
a39f3346 | 10906 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 10907 | |
a50b1753 | 10908 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
10909 | if (buf == NULL) |
10910 | return buf; | |
a39f3346 | 10911 | dest = buf + *bufsiz; |
7c76fa91 MS |
10912 | *bufsiz += newspace; |
10913 | xnp = (Elf_External_Note *) dest; | |
10914 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
10915 | H_PUT_32 (abfd, size, xnp->descsz); | |
10916 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
10917 | dest = xnp->name; |
10918 | if (name != NULL) | |
10919 | { | |
10920 | memcpy (dest, name, namesz); | |
10921 | dest += namesz; | |
a39f3346 | 10922 | while (namesz & 3) |
d4c88bbb AM |
10923 | { |
10924 | *dest++ = '\0'; | |
a39f3346 | 10925 | ++namesz; |
d4c88bbb AM |
10926 | } |
10927 | } | |
10928 | memcpy (dest, input, size); | |
a39f3346 AM |
10929 | dest += size; |
10930 | while (size & 3) | |
10931 | { | |
10932 | *dest++ = '\0'; | |
10933 | ++size; | |
10934 | } | |
10935 | return buf; | |
7c76fa91 MS |
10936 | } |
10937 | ||
602f1657 AM |
10938 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
10939 | possible string truncation. The "truncation" is not a bug. We | |
10940 | have an external representation of structs with fields that are not | |
10941 | necessarily NULL terminated and corresponding internal | |
10942 | representation fields that are one larger so that they can always | |
10943 | be NULL terminated. | |
10944 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
10945 | diagnostics inside functions, giving a hard error if you try to use | |
10946 | the finer control available with later versions. | |
10947 | gcc prior to 4.2 warns about diagnostic push and pop. | |
10948 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
10949 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
10950 | (*) Depending on your system header files! */ | |
d99b4b92 | 10951 | #if GCC_VERSION >= 8000 |
602f1657 AM |
10952 | # pragma GCC diagnostic push |
10953 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 10954 | #endif |
7c76fa91 | 10955 | char * |
217aa764 AM |
10956 | elfcore_write_prpsinfo (bfd *abfd, |
10957 | char *buf, | |
10958 | int *bufsiz, | |
10959 | const char *fname, | |
10960 | const char *psargs) | |
7c76fa91 | 10961 | { |
183e98be AM |
10962 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10963 | ||
10964 | if (bed->elf_backend_write_core_note != NULL) | |
10965 | { | |
10966 | char *ret; | |
10967 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10968 | NT_PRPSINFO, fname, psargs); | |
10969 | if (ret != NULL) | |
10970 | return ret; | |
10971 | } | |
7c76fa91 | 10972 | |
1f20dca5 | 10973 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 10974 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
10975 | if (bed->s->elfclass == ELFCLASS32) |
10976 | { | |
602f1657 | 10977 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
10978 | psinfo32_t data; |
10979 | int note_type = NT_PSINFO; | |
602f1657 | 10980 | # else |
183e98be AM |
10981 | prpsinfo32_t data; |
10982 | int note_type = NT_PRPSINFO; | |
602f1657 | 10983 | # endif |
183e98be AM |
10984 | |
10985 | memset (&data, 0, sizeof (data)); | |
10986 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10987 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10988 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10989 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
10990 | } |
10991 | else | |
602f1657 | 10992 | # endif |
183e98be | 10993 | { |
602f1657 | 10994 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
10995 | psinfo_t data; |
10996 | int note_type = NT_PSINFO; | |
602f1657 | 10997 | # else |
183e98be AM |
10998 | prpsinfo_t data; |
10999 | int note_type = NT_PRPSINFO; | |
602f1657 | 11000 | # endif |
7c76fa91 | 11001 | |
183e98be AM |
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 | 11007 | } |
7c76fa91 MS |
11008 | #endif /* PSINFO_T or PRPSINFO_T */ |
11009 | ||
1f20dca5 UW |
11010 | free (buf); |
11011 | return NULL; | |
11012 | } | |
d99b4b92 | 11013 | #if GCC_VERSION >= 8000 |
602f1657 | 11014 | # pragma GCC diagnostic pop |
d99b4b92 | 11015 | #endif |
1f20dca5 | 11016 | |
70a38d42 SDJ |
11017 | char * |
11018 | elfcore_write_linux_prpsinfo32 | |
11019 | (bfd *abfd, char *buf, int *bufsiz, | |
11020 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11021 | { | |
a2f63b2e MR |
11022 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
11023 | { | |
11024 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
11025 | ||
11026 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
11027 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11028 | &data, sizeof (data)); | |
11029 | } | |
11030 | else | |
11031 | { | |
11032 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 11033 | |
a2f63b2e MR |
11034 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
11035 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
11036 | &data, sizeof (data)); | |
11037 | } | |
70a38d42 SDJ |
11038 | } |
11039 | ||
11040 | char * | |
11041 | elfcore_write_linux_prpsinfo64 | |
11042 | (bfd *abfd, char *buf, int *bufsiz, | |
11043 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
11044 | { | |
3c9a7b0d MR |
11045 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
11046 | { | |
11047 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
11048 | ||
11049 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
11050 | return elfcore_write_note (abfd, buf, bufsiz, | |
11051 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11052 | } | |
11053 | else | |
11054 | { | |
11055 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 11056 | |
3c9a7b0d MR |
11057 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
11058 | return elfcore_write_note (abfd, buf, bufsiz, | |
11059 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
11060 | } | |
70a38d42 SDJ |
11061 | } |
11062 | ||
7c76fa91 | 11063 | char * |
217aa764 AM |
11064 | elfcore_write_prstatus (bfd *abfd, |
11065 | char *buf, | |
11066 | int *bufsiz, | |
11067 | long pid, | |
11068 | int cursig, | |
11069 | const void *gregs) | |
7c76fa91 | 11070 | { |
183e98be | 11071 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 11072 | |
183e98be AM |
11073 | if (bed->elf_backend_write_core_note != NULL) |
11074 | { | |
11075 | char *ret; | |
11076 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
11077 | NT_PRSTATUS, | |
11078 | pid, cursig, gregs); | |
11079 | if (ret != NULL) | |
11080 | return ret; | |
11081 | } | |
11082 | ||
1f20dca5 | 11083 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
11084 | #if defined (HAVE_PRSTATUS32_T) |
11085 | if (bed->s->elfclass == ELFCLASS32) | |
11086 | { | |
11087 | prstatus32_t prstat; | |
11088 | ||
11089 | memset (&prstat, 0, sizeof (prstat)); | |
11090 | prstat.pr_pid = pid; | |
11091 | prstat.pr_cursig = cursig; | |
11092 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11093 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11094 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11095 | } | |
11096 | else | |
11097 | #endif | |
11098 | { | |
11099 | prstatus_t prstat; | |
11100 | ||
11101 | memset (&prstat, 0, sizeof (prstat)); | |
11102 | prstat.pr_pid = pid; | |
11103 | prstat.pr_cursig = cursig; | |
11104 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11105 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11106 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11107 | } | |
7c76fa91 MS |
11108 | #endif /* HAVE_PRSTATUS_T */ |
11109 | ||
1f20dca5 UW |
11110 | free (buf); |
11111 | return NULL; | |
11112 | } | |
11113 | ||
51316059 MS |
11114 | #if defined (HAVE_LWPSTATUS_T) |
11115 | char * | |
217aa764 AM |
11116 | elfcore_write_lwpstatus (bfd *abfd, |
11117 | char *buf, | |
11118 | int *bufsiz, | |
11119 | long pid, | |
11120 | int cursig, | |
11121 | const void *gregs) | |
51316059 MS |
11122 | { |
11123 | lwpstatus_t lwpstat; | |
183e98be | 11124 | const char *note_name = "CORE"; |
51316059 MS |
11125 | |
11126 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11127 | lwpstat.pr_lwpid = pid >> 16; | |
11128 | lwpstat.pr_cursig = cursig; | |
11129 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11130 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11131 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11132 | #if !defined(gregs) | |
11133 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11134 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11135 | #else | |
11136 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11137 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11138 | #endif | |
11139 | #endif | |
47d9a591 | 11140 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11141 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11142 | } | |
11143 | #endif /* HAVE_LWPSTATUS_T */ | |
11144 | ||
7c76fa91 MS |
11145 | #if defined (HAVE_PSTATUS_T) |
11146 | char * | |
217aa764 AM |
11147 | elfcore_write_pstatus (bfd *abfd, |
11148 | char *buf, | |
11149 | int *bufsiz, | |
11150 | long pid, | |
6c10990d NC |
11151 | int cursig ATTRIBUTE_UNUSED, |
11152 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11153 | { |
183e98be AM |
11154 | const char *note_name = "CORE"; |
11155 | #if defined (HAVE_PSTATUS32_T) | |
11156 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11157 | |
183e98be AM |
11158 | if (bed->s->elfclass == ELFCLASS32) |
11159 | { | |
11160 | pstatus32_t pstat; | |
11161 | ||
11162 | memset (&pstat, 0, sizeof (pstat)); | |
11163 | pstat.pr_pid = pid & 0xffff; | |
11164 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11165 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11166 | return buf; | |
11167 | } | |
11168 | else | |
11169 | #endif | |
11170 | { | |
11171 | pstatus_t pstat; | |
11172 | ||
11173 | memset (&pstat, 0, sizeof (pstat)); | |
11174 | pstat.pr_pid = pid & 0xffff; | |
11175 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11176 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11177 | return buf; | |
11178 | } | |
7c76fa91 MS |
11179 | } |
11180 | #endif /* HAVE_PSTATUS_T */ | |
11181 | ||
11182 | char * | |
217aa764 AM |
11183 | elfcore_write_prfpreg (bfd *abfd, |
11184 | char *buf, | |
11185 | int *bufsiz, | |
11186 | const void *fpregs, | |
11187 | int size) | |
7c76fa91 | 11188 | { |
183e98be | 11189 | const char *note_name = "CORE"; |
47d9a591 | 11190 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11191 | note_name, NT_FPREGSET, fpregs, size); |
11192 | } | |
11193 | ||
11194 | char * | |
217aa764 AM |
11195 | elfcore_write_prxfpreg (bfd *abfd, |
11196 | char *buf, | |
11197 | int *bufsiz, | |
11198 | const void *xfpregs, | |
11199 | int size) | |
7c76fa91 MS |
11200 | { |
11201 | char *note_name = "LINUX"; | |
47d9a591 | 11202 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11203 | note_name, NT_PRXFPREG, xfpregs, size); |
11204 | } | |
11205 | ||
4339cae0 L |
11206 | char * |
11207 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11208 | const void *xfpregs, int size) | |
11209 | { | |
97de3545 JB |
11210 | char *note_name; |
11211 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11212 | note_name = "FreeBSD"; | |
11213 | else | |
11214 | note_name = "LINUX"; | |
4339cae0 L |
11215 | return elfcore_write_note (abfd, buf, bufsiz, |
11216 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11217 | } | |
11218 | ||
97753bd5 AM |
11219 | char * |
11220 | elfcore_write_ppc_vmx (bfd *abfd, | |
11221 | char *buf, | |
11222 | int *bufsiz, | |
11223 | const void *ppc_vmx, | |
11224 | int size) | |
11225 | { | |
11226 | char *note_name = "LINUX"; | |
11227 | return elfcore_write_note (abfd, buf, bufsiz, | |
11228 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11229 | } | |
11230 | ||
89eeb0bc LM |
11231 | char * |
11232 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11233 | char *buf, |
11234 | int *bufsiz, | |
11235 | const void *ppc_vsx, | |
11236 | int size) | |
89eeb0bc LM |
11237 | { |
11238 | char *note_name = "LINUX"; | |
11239 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11240 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11241 | } |
11242 | ||
cb2366c1 EBM |
11243 | char * |
11244 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11245 | char *buf, |
11246 | int *bufsiz, | |
11247 | const void *ppc_tar, | |
11248 | int size) | |
cb2366c1 EBM |
11249 | { |
11250 | char *note_name = "LINUX"; | |
11251 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11252 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11253 | } |
11254 | ||
11255 | char * | |
11256 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11257 | char *buf, |
11258 | int *bufsiz, | |
11259 | const void *ppc_ppr, | |
11260 | int size) | |
cb2366c1 EBM |
11261 | { |
11262 | char *note_name = "LINUX"; | |
11263 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11264 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11265 | } |
11266 | ||
11267 | char * | |
11268 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11269 | char *buf, |
11270 | int *bufsiz, | |
11271 | const void *ppc_dscr, | |
11272 | int size) | |
cb2366c1 EBM |
11273 | { |
11274 | char *note_name = "LINUX"; | |
11275 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11276 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11277 | } |
11278 | ||
11279 | char * | |
11280 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11281 | char *buf, |
11282 | int *bufsiz, | |
11283 | const void *ppc_ebb, | |
11284 | int size) | |
cb2366c1 EBM |
11285 | { |
11286 | char *note_name = "LINUX"; | |
11287 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11288 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11289 | } |
11290 | ||
11291 | char * | |
11292 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11293 | char *buf, |
11294 | int *bufsiz, | |
11295 | const void *ppc_pmu, | |
11296 | int size) | |
cb2366c1 EBM |
11297 | { |
11298 | char *note_name = "LINUX"; | |
11299 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11300 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11301 | } |
11302 | ||
11303 | char * | |
11304 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11305 | char *buf, |
11306 | int *bufsiz, | |
11307 | const void *ppc_tm_cgpr, | |
11308 | int size) | |
cb2366c1 EBM |
11309 | { |
11310 | char *note_name = "LINUX"; | |
11311 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11312 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11313 | } |
11314 | ||
11315 | char * | |
11316 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11317 | char *buf, |
11318 | int *bufsiz, | |
11319 | const void *ppc_tm_cfpr, | |
11320 | int size) | |
cb2366c1 EBM |
11321 | { |
11322 | char *note_name = "LINUX"; | |
11323 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11324 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11325 | } |
11326 | ||
11327 | char * | |
11328 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11329 | char *buf, |
11330 | int *bufsiz, | |
11331 | const void *ppc_tm_cvmx, | |
11332 | int size) | |
cb2366c1 EBM |
11333 | { |
11334 | char *note_name = "LINUX"; | |
11335 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11336 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11337 | } |
11338 | ||
11339 | char * | |
11340 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11341 | char *buf, |
11342 | int *bufsiz, | |
11343 | const void *ppc_tm_cvsx, | |
11344 | int size) | |
cb2366c1 EBM |
11345 | { |
11346 | char *note_name = "LINUX"; | |
11347 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11348 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11349 | } |
11350 | ||
11351 | char * | |
11352 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11353 | char *buf, |
11354 | int *bufsiz, | |
11355 | const void *ppc_tm_spr, | |
11356 | int size) | |
cb2366c1 EBM |
11357 | { |
11358 | char *note_name = "LINUX"; | |
11359 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11360 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11361 | } |
11362 | ||
11363 | char * | |
11364 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11365 | char *buf, |
11366 | int *bufsiz, | |
11367 | const void *ppc_tm_ctar, | |
11368 | int size) | |
cb2366c1 EBM |
11369 | { |
11370 | char *note_name = "LINUX"; | |
11371 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11372 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11373 | } |
11374 | ||
11375 | char * | |
11376 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11377 | char *buf, |
11378 | int *bufsiz, | |
11379 | const void *ppc_tm_cppr, | |
11380 | int size) | |
cb2366c1 EBM |
11381 | { |
11382 | char *note_name = "LINUX"; | |
11383 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11384 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11385 | } |
11386 | ||
11387 | char * | |
11388 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11389 | char *buf, |
11390 | int *bufsiz, | |
11391 | const void *ppc_tm_cdscr, | |
11392 | int size) | |
cb2366c1 EBM |
11393 | { |
11394 | char *note_name = "LINUX"; | |
11395 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11396 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11397 | } |
11398 | ||
0675e188 UW |
11399 | static char * |
11400 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11401 | char *buf, | |
11402 | int *bufsiz, | |
11403 | const void *s390_high_gprs, | |
11404 | int size) | |
11405 | { | |
11406 | char *note_name = "LINUX"; | |
11407 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11408 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11409 | s390_high_gprs, size); |
11410 | } | |
11411 | ||
d7eeb400 MS |
11412 | char * |
11413 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11414 | char *buf, |
11415 | int *bufsiz, | |
11416 | const void *s390_timer, | |
11417 | int size) | |
d7eeb400 MS |
11418 | { |
11419 | char *note_name = "LINUX"; | |
11420 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11421 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11422 | } |
11423 | ||
11424 | char * | |
11425 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11426 | char *buf, |
11427 | int *bufsiz, | |
11428 | const void *s390_todcmp, | |
11429 | int size) | |
d7eeb400 MS |
11430 | { |
11431 | char *note_name = "LINUX"; | |
11432 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11433 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11434 | } |
11435 | ||
11436 | char * | |
11437 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11438 | char *buf, |
11439 | int *bufsiz, | |
11440 | const void *s390_todpreg, | |
11441 | int size) | |
d7eeb400 MS |
11442 | { |
11443 | char *note_name = "LINUX"; | |
11444 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11445 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11446 | } |
11447 | ||
11448 | char * | |
11449 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11450 | char *buf, |
11451 | int *bufsiz, | |
11452 | const void *s390_ctrs, | |
11453 | int size) | |
d7eeb400 MS |
11454 | { |
11455 | char *note_name = "LINUX"; | |
11456 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11457 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11458 | } |
11459 | ||
11460 | char * | |
11461 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11462 | char *buf, |
11463 | int *bufsiz, | |
11464 | const void *s390_prefix, | |
11465 | int size) | |
d7eeb400 MS |
11466 | { |
11467 | char *note_name = "LINUX"; | |
11468 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11469 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11470 | } |
11471 | ||
355b81d9 UW |
11472 | char * |
11473 | elfcore_write_s390_last_break (bfd *abfd, | |
11474 | char *buf, | |
11475 | int *bufsiz, | |
11476 | const void *s390_last_break, | |
11477 | int size) | |
11478 | { | |
11479 | char *note_name = "LINUX"; | |
11480 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11481 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11482 | s390_last_break, size); |
11483 | } | |
11484 | ||
11485 | char * | |
11486 | elfcore_write_s390_system_call (bfd *abfd, | |
11487 | char *buf, | |
11488 | int *bufsiz, | |
11489 | const void *s390_system_call, | |
11490 | int size) | |
11491 | { | |
11492 | char *note_name = "LINUX"; | |
11493 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11494 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11495 | s390_system_call, size); |
11496 | } | |
11497 | ||
abb3f6cc NC |
11498 | char * |
11499 | elfcore_write_s390_tdb (bfd *abfd, | |
11500 | char *buf, | |
11501 | int *bufsiz, | |
11502 | const void *s390_tdb, | |
11503 | int size) | |
11504 | { | |
11505 | char *note_name = "LINUX"; | |
11506 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11507 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11508 | } |
11509 | ||
4ef9f41a AA |
11510 | char * |
11511 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11512 | char *buf, | |
11513 | int *bufsiz, | |
11514 | const void *s390_vxrs_low, | |
11515 | int size) | |
11516 | { | |
11517 | char *note_name = "LINUX"; | |
11518 | return elfcore_write_note (abfd, buf, bufsiz, | |
11519 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11520 | } | |
11521 | ||
11522 | char * | |
11523 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11524 | char *buf, | |
11525 | int *bufsiz, | |
11526 | const void *s390_vxrs_high, | |
11527 | int size) | |
11528 | { | |
11529 | char *note_name = "LINUX"; | |
11530 | return elfcore_write_note (abfd, buf, bufsiz, | |
11531 | note_name, NT_S390_VXRS_HIGH, | |
11532 | s390_vxrs_high, size); | |
11533 | } | |
11534 | ||
88ab90e8 AA |
11535 | char * |
11536 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11537 | char *buf, | |
11538 | int *bufsiz, | |
11539 | const void *s390_gs_cb, | |
11540 | int size) | |
11541 | { | |
11542 | char *note_name = "LINUX"; | |
11543 | return elfcore_write_note (abfd, buf, bufsiz, | |
11544 | note_name, NT_S390_GS_CB, | |
11545 | s390_gs_cb, size); | |
11546 | } | |
11547 | ||
11548 | char * | |
11549 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11550 | char *buf, | |
11551 | int *bufsiz, | |
11552 | const void *s390_gs_bc, | |
11553 | int size) | |
11554 | { | |
11555 | char *note_name = "LINUX"; | |
11556 | return elfcore_write_note (abfd, buf, bufsiz, | |
11557 | note_name, NT_S390_GS_BC, | |
11558 | s390_gs_bc, size); | |
11559 | } | |
11560 | ||
faa9a424 UW |
11561 | char * |
11562 | elfcore_write_arm_vfp (bfd *abfd, | |
11563 | char *buf, | |
11564 | int *bufsiz, | |
11565 | const void *arm_vfp, | |
11566 | int size) | |
11567 | { | |
11568 | char *note_name = "LINUX"; | |
11569 | return elfcore_write_note (abfd, buf, bufsiz, | |
11570 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11571 | } | |
11572 | ||
652451f8 YZ |
11573 | char * |
11574 | elfcore_write_aarch_tls (bfd *abfd, | |
11575 | char *buf, | |
11576 | int *bufsiz, | |
11577 | const void *aarch_tls, | |
11578 | int size) | |
11579 | { | |
11580 | char *note_name = "LINUX"; | |
11581 | return elfcore_write_note (abfd, buf, bufsiz, | |
11582 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11583 | } | |
11584 | ||
11585 | char * | |
11586 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11587 | char *buf, | |
11588 | int *bufsiz, | |
11589 | const void *aarch_hw_break, | |
11590 | int size) | |
11591 | { | |
11592 | char *note_name = "LINUX"; | |
11593 | return elfcore_write_note (abfd, buf, bufsiz, | |
11594 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11595 | } | |
11596 | ||
11597 | char * | |
11598 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11599 | char *buf, | |
11600 | int *bufsiz, | |
11601 | const void *aarch_hw_watch, | |
11602 | int size) | |
11603 | { | |
11604 | char *note_name = "LINUX"; | |
11605 | return elfcore_write_note (abfd, buf, bufsiz, | |
11606 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11607 | } | |
11608 | ||
ad1cc4e4 AH |
11609 | char * |
11610 | elfcore_write_aarch_sve (bfd *abfd, | |
11611 | char *buf, | |
11612 | int *bufsiz, | |
11613 | const void *aarch_sve, | |
11614 | int size) | |
11615 | { | |
11616 | char *note_name = "LINUX"; | |
11617 | return elfcore_write_note (abfd, buf, bufsiz, | |
11618 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11619 | } | |
11620 | ||
e6c3b5bf AH |
11621 | char * |
11622 | elfcore_write_aarch_pauth (bfd *abfd, | |
11623 | char *buf, | |
11624 | int *bufsiz, | |
11625 | const void *aarch_pauth, | |
11626 | int size) | |
11627 | { | |
11628 | char *note_name = "LINUX"; | |
11629 | return elfcore_write_note (abfd, buf, bufsiz, | |
11630 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11631 | } | |
11632 | ||
bb864ac1 CES |
11633 | char * |
11634 | elfcore_write_register_note (bfd *abfd, | |
11635 | char *buf, | |
11636 | int *bufsiz, | |
11637 | const char *section, | |
11638 | const void *data, | |
11639 | int size) | |
11640 | { | |
11641 | if (strcmp (section, ".reg2") == 0) | |
11642 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11643 | if (strcmp (section, ".reg-xfp") == 0) | |
11644 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11645 | if (strcmp (section, ".reg-xstate") == 0) |
11646 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11647 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11648 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11649 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11650 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11651 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11652 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11653 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11654 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11655 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11656 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11657 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11658 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11659 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11660 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11661 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11662 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11663 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11664 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11665 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11666 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11667 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11668 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11669 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11670 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11671 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11672 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11673 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11674 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11675 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11676 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11677 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11678 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11679 | if (strcmp (section, ".reg-s390-timer") == 0) |
11680 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11681 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11682 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11683 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11684 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11685 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11686 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11687 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11688 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11689 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11690 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11691 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11692 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11693 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11694 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11695 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11696 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11697 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11698 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11699 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11700 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11701 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11702 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11703 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11704 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11705 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11706 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11707 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11708 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11709 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11710 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11711 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11712 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
11713 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
11714 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11715 | return NULL; |
11716 | } | |
11717 | ||
b34976b6 | 11718 | static bfd_boolean |
276da9b3 L |
11719 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11720 | size_t align) | |
252b5132 | 11721 | { |
c044fabd | 11722 | char *p; |
252b5132 | 11723 | |
276da9b3 L |
11724 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11725 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11726 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11727 | align is less than 4, we use 4 byte alignment. */ | |
11728 | if (align < 4) | |
11729 | align = 4; | |
ef135d43 NC |
11730 | if (align != 4 && align != 8) |
11731 | return FALSE; | |
276da9b3 | 11732 | |
252b5132 RH |
11733 | p = buf; |
11734 | while (p < buf + size) | |
11735 | { | |
c044fabd | 11736 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11737 | Elf_Internal_Note in; |
11738 | ||
baea7ef1 AM |
11739 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11740 | return FALSE; | |
11741 | ||
dc810e39 | 11742 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11743 | |
dc810e39 | 11744 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11745 | in.namedata = xnp->name; |
baea7ef1 AM |
11746 | if (in.namesz > buf - in.namedata + size) |
11747 | return FALSE; | |
252b5132 | 11748 | |
dc810e39 | 11749 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11750 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11751 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11752 | if (in.descsz != 0 |
11753 | && (in.descdata >= buf + size | |
11754 | || in.descsz > buf - in.descdata + size)) | |
11755 | return FALSE; | |
252b5132 | 11756 | |
718175fa | 11757 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11758 | { |
718175fa JK |
11759 | default: |
11760 | return TRUE; | |
11761 | ||
11762 | case bfd_core: | |
f64e188b | 11763 | { |
8acbedd6 | 11764 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11765 | struct |
718175fa | 11766 | { |
f64e188b | 11767 | const char * string; |
8acbedd6 | 11768 | size_t len; |
f64e188b | 11769 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11770 | } |
f64e188b | 11771 | grokers[] = |
b15fa79e | 11772 | { |
8acbedd6 | 11773 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11774 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11775 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11776 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11777 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
11778 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note) | |
f64e188b | 11779 | }; |
8acbedd6 | 11780 | #undef GROKER_ELEMENT |
f64e188b NC |
11781 | int i; |
11782 | ||
11783 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11784 | { |
11785 | if (in.namesz >= grokers[i].len | |
11786 | && strncmp (in.namedata, grokers[i].string, | |
11787 | grokers[i].len) == 0) | |
11788 | { | |
11789 | if (! grokers[i].func (abfd, & in)) | |
11790 | return FALSE; | |
11791 | break; | |
11792 | } | |
11793 | } | |
f64e188b NC |
11794 | break; |
11795 | } | |
718175fa JK |
11796 | |
11797 | case bfd_object: | |
11798 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11799 | { | |
11800 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11801 | return FALSE; | |
11802 | } | |
e21e5835 NC |
11803 | else if (in.namesz == sizeof "stapsdt" |
11804 | && strcmp (in.namedata, "stapsdt") == 0) | |
11805 | { | |
11806 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11807 | return FALSE; | |
11808 | } | |
718175fa | 11809 | break; |
08a40648 | 11810 | } |
252b5132 | 11811 | |
276da9b3 | 11812 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11813 | } |
11814 | ||
718175fa JK |
11815 | return TRUE; |
11816 | } | |
11817 | ||
11818 | static bfd_boolean | |
276da9b3 L |
11819 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11820 | size_t align) | |
718175fa JK |
11821 | { |
11822 | char *buf; | |
11823 | ||
957e1fc1 | 11824 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11825 | return TRUE; |
11826 | ||
11827 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11828 | return FALSE; | |
11829 | ||
f64e188b | 11830 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
11831 | if (buf == NULL) |
11832 | return FALSE; | |
11833 | ||
f64e188b NC |
11834 | /* PR 17512: file: ec08f814 |
11835 | 0-termintate the buffer so that string searches will not overflow. */ | |
11836 | buf[size] = 0; | |
11837 | ||
718175fa | 11838 | if (bfd_bread (buf, size, abfd) != size |
276da9b3 | 11839 | || !elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11840 | { |
11841 | free (buf); | |
11842 | return FALSE; | |
11843 | } | |
11844 | ||
252b5132 | 11845 | free (buf); |
b34976b6 | 11846 | return TRUE; |
252b5132 | 11847 | } |
98d8431c JB |
11848 | \f |
11849 | /* Providing external access to the ELF program header table. */ | |
11850 | ||
11851 | /* Return an upper bound on the number of bytes required to store a | |
11852 | copy of ABFD's program header table entries. Return -1 if an error | |
11853 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11854 | |
98d8431c | 11855 | long |
217aa764 | 11856 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11857 | { |
11858 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11859 | { | |
11860 | bfd_set_error (bfd_error_wrong_format); | |
11861 | return -1; | |
11862 | } | |
11863 | ||
936e320b | 11864 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11865 | } |
11866 | ||
98d8431c JB |
11867 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11868 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11869 | defined in include/elf/internal.h. To find out how large the | |
11870 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11871 | ||
11872 | Return the number of program header table entries read, or -1 if an | |
11873 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11874 | |
98d8431c | 11875 | int |
217aa764 | 11876 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11877 | { |
11878 | int num_phdrs; | |
11879 | ||
11880 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11881 | { | |
11882 | bfd_set_error (bfd_error_wrong_format); | |
11883 | return -1; | |
11884 | } | |
11885 | ||
11886 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
11887 | if (num_phdrs != 0) |
11888 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
11889 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
11890 | |
11891 | return num_phdrs; | |
11892 | } | |
ae4221d7 | 11893 | |
db6751f2 | 11894 | enum elf_reloc_type_class |
7e612e98 AM |
11895 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11896 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11897 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11898 | { |
11899 | return reloc_class_normal; | |
11900 | } | |
f8df10f4 | 11901 | |
47d9a591 | 11902 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11903 | relocation against a local symbol. */ |
11904 | ||
11905 | bfd_vma | |
217aa764 AM |
11906 | _bfd_elf_rela_local_sym (bfd *abfd, |
11907 | Elf_Internal_Sym *sym, | |
8517fae7 | 11908 | asection **psec, |
217aa764 | 11909 | Elf_Internal_Rela *rel) |
f8df10f4 | 11910 | { |
8517fae7 | 11911 | asection *sec = *psec; |
f8df10f4 JJ |
11912 | bfd_vma relocation; |
11913 | ||
6835821b AM |
11914 | relocation = (sec->output_section->vma |
11915 | + sec->output_offset | |
11916 | + sym->st_value); | |
f8df10f4 | 11917 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 11918 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 11919 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 11920 | { |
f8df10f4 | 11921 | rel->r_addend = |
8517fae7 | 11922 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 11923 | elf_section_data (sec)->sec_info, |
753731ee AM |
11924 | sym->st_value + rel->r_addend); |
11925 | if (sec != *psec) | |
11926 | { | |
11927 | /* If we have changed the section, and our original section is | |
11928 | marked with SEC_EXCLUDE, it means that the original | |
11929 | SEC_MERGE section has been completely subsumed in some | |
11930 | other SEC_MERGE section. In this case, we need to leave | |
11931 | some info around for --emit-relocs. */ | |
11932 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
11933 | sec->kept_section = *psec; | |
11934 | sec = *psec; | |
11935 | } | |
8517fae7 AM |
11936 | rel->r_addend -= relocation; |
11937 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
11938 | } |
11939 | return relocation; | |
11940 | } | |
c629eae0 JJ |
11941 | |
11942 | bfd_vma | |
217aa764 AM |
11943 | _bfd_elf_rel_local_sym (bfd *abfd, |
11944 | Elf_Internal_Sym *sym, | |
11945 | asection **psec, | |
11946 | bfd_vma addend) | |
47d9a591 | 11947 | { |
c629eae0 JJ |
11948 | asection *sec = *psec; |
11949 | ||
6835821b | 11950 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
11951 | return sym->st_value + addend; |
11952 | ||
11953 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 11954 | elf_section_data (sec)->sec_info, |
753731ee | 11955 | sym->st_value + addend); |
c629eae0 JJ |
11956 | } |
11957 | ||
37b01f6a DG |
11958 | /* Adjust an address within a section. Given OFFSET within SEC, return |
11959 | the new offset within the section, based upon changes made to the | |
11960 | section. Returns -1 if the offset is now invalid. | |
11961 | The offset (in abnd out) is in target sized bytes, however big a | |
11962 | byte may be. */ | |
11963 | ||
c629eae0 | 11964 | bfd_vma |
217aa764 | 11965 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 11966 | struct bfd_link_info *info, |
217aa764 AM |
11967 | asection *sec, |
11968 | bfd_vma offset) | |
c629eae0 | 11969 | { |
68bfbfcc | 11970 | switch (sec->sec_info_type) |
65765700 | 11971 | { |
dbaa2011 | 11972 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
11973 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
11974 | offset); | |
dbaa2011 | 11975 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 11976 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 11977 | |
65765700 | 11978 | default: |
310fd250 L |
11979 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
11980 | { | |
37b01f6a | 11981 | /* Reverse the offset. */ |
310fd250 L |
11982 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11983 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
11984 | |
11985 | /* address_size and sec->size are in octets. Convert | |
11986 | to bytes before subtracting the original offset. */ | |
11987 | offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset; | |
310fd250 | 11988 | } |
65765700 JJ |
11989 | return offset; |
11990 | } | |
c629eae0 | 11991 | } |
3333a7c3 RM |
11992 | \f |
11993 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
11994 | reconstruct an ELF file by reading the segments out of remote memory | |
11995 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
11996 | points to. If not null, *LOADBASEP is filled in with the difference | |
11997 | between the VMAs from which the segments were read, and the VMAs the | |
11998 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
11999 | ||
12000 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
12001 | remote memory at target address VMA into the local buffer at MYADDR; it | |
12002 | should return zero on success or an `errno' code on failure. TEMPL must | |
12003 | be a BFD for an ELF target with the word size and byte order found in | |
12004 | the remote memory. */ | |
12005 | ||
12006 | bfd * | |
217aa764 AM |
12007 | bfd_elf_bfd_from_remote_memory |
12008 | (bfd *templ, | |
12009 | bfd_vma ehdr_vma, | |
f0a5d95a | 12010 | bfd_size_type size, |
217aa764 | 12011 | bfd_vma *loadbasep, |
fe78531d | 12012 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
12013 | { |
12014 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 12015 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 12016 | } |
4c45e5c9 JJ |
12017 | \f |
12018 | long | |
c9727e01 AM |
12019 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
12020 | long symcount ATTRIBUTE_UNUSED, | |
12021 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 12022 | long dynsymcount, |
c9727e01 AM |
12023 | asymbol **dynsyms, |
12024 | asymbol **ret) | |
4c45e5c9 JJ |
12025 | { |
12026 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
12027 | asection *relplt; | |
12028 | asymbol *s; | |
12029 | const char *relplt_name; | |
12030 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
12031 | arelent *p; | |
12032 | long count, i, n; | |
12033 | size_t size; | |
12034 | Elf_Internal_Shdr *hdr; | |
12035 | char *names; | |
12036 | asection *plt; | |
12037 | ||
8615f3f2 AM |
12038 | *ret = NULL; |
12039 | ||
90e3cdf2 JJ |
12040 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
12041 | return 0; | |
12042 | ||
8615f3f2 AM |
12043 | if (dynsymcount <= 0) |
12044 | return 0; | |
12045 | ||
4c45e5c9 JJ |
12046 | if (!bed->plt_sym_val) |
12047 | return 0; | |
12048 | ||
12049 | relplt_name = bed->relplt_name; | |
12050 | if (relplt_name == NULL) | |
d35fd659 | 12051 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
12052 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
12053 | if (relplt == NULL) | |
12054 | return 0; | |
12055 | ||
12056 | hdr = &elf_section_data (relplt)->this_hdr; | |
12057 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
12058 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
12059 | return 0; | |
12060 | ||
12061 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
12062 | if (plt == NULL) | |
12063 | return 0; | |
12064 | ||
12065 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 12066 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
12067 | return -1; |
12068 | ||
eea6121a | 12069 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
12070 | size = count * sizeof (asymbol); |
12071 | p = relplt->relocation; | |
cb53bf42 | 12072 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
12073 | { |
12074 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
12075 | if (p->addend != 0) | |
12076 | { | |
12077 | #ifdef BFD64 | |
12078 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
12079 | #else | |
12080 | size += sizeof ("+0x") - 1 + 8; | |
12081 | #endif | |
12082 | } | |
12083 | } | |
4c45e5c9 | 12084 | |
a50b1753 | 12085 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
12086 | if (s == NULL) |
12087 | return -1; | |
12088 | ||
12089 | names = (char *) (s + count); | |
12090 | p = relplt->relocation; | |
12091 | n = 0; | |
cb53bf42 | 12092 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
12093 | { |
12094 | size_t len; | |
12095 | bfd_vma addr; | |
12096 | ||
12097 | addr = bed->plt_sym_val (i, plt, p); | |
12098 | if (addr == (bfd_vma) -1) | |
12099 | continue; | |
12100 | ||
12101 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12102 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12103 | we are defining a symbol, ensure one of them is set. */ | |
12104 | if ((s->flags & BSF_LOCAL) == 0) | |
12105 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12106 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12107 | s->section = plt; |
12108 | s->value = addr - plt->vma; | |
12109 | s->name = names; | |
8f39ba8e | 12110 | s->udata.p = NULL; |
4c45e5c9 JJ |
12111 | len = strlen ((*p->sym_ptr_ptr)->name); |
12112 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12113 | names += len; | |
041de40d AM |
12114 | if (p->addend != 0) |
12115 | { | |
1d770845 | 12116 | char buf[30], *a; |
d324f6d6 | 12117 | |
041de40d AM |
12118 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12119 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12120 | bfd_sprintf_vma (abfd, buf, p->addend); |
12121 | for (a = buf; *a == '0'; ++a) | |
12122 | ; | |
12123 | len = strlen (a); | |
12124 | memcpy (names, a, len); | |
12125 | names += len; | |
041de40d | 12126 | } |
4c45e5c9 JJ |
12127 | memcpy (names, "@plt", sizeof ("@plt")); |
12128 | names += sizeof ("@plt"); | |
8f39ba8e | 12129 | ++s, ++n; |
4c45e5c9 JJ |
12130 | } |
12131 | ||
12132 | return n; | |
12133 | } | |
3d7f7666 | 12134 | |
821e6ff6 AM |
12135 | /* It is only used by x86-64 so far. |
12136 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12137 | but current usage would allow all of _bfd_std_section to be zero. */ |
12138 | static const asymbol lcomm_sym | |
12139 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12140 | asection _bfd_elf_large_com_section |
7eacd66b | 12141 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12142 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12143 | |
d1036acb | 12144 | void |
06f44071 AM |
12145 | _bfd_elf_post_process_headers (bfd *abfd ATTRIBUTE_UNUSED, |
12146 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
d1036acb | 12147 | { |
06f44071 AM |
12148 | } |
12149 | ||
cc364be6 AM |
12150 | bfd_boolean |
12151 | _bfd_elf_final_write_processing (bfd *abfd) | |
06f44071 AM |
12152 | { |
12153 | Elf_Internal_Ehdr *i_ehdrp; /* ELF file header, internal form. */ | |
d1036acb L |
12154 | |
12155 | i_ehdrp = elf_elfheader (abfd); | |
12156 | ||
06f44071 AM |
12157 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) |
12158 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 | 12159 | |
df3a023b AM |
12160 | /* Set the osabi field to ELFOSABI_GNU if the binary contains |
12161 | SHF_GNU_MBIND sections or symbols of STT_GNU_IFUNC type or | |
12162 | STB_GNU_UNIQUE binding. */ | |
cc364be6 AM |
12163 | if (elf_tdata (abfd)->has_gnu_osabi != 0) |
12164 | { | |
12165 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE) | |
12166 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; | |
12167 | else if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU | |
12168 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_FREEBSD) | |
12169 | { | |
12170 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_mbind) | |
12171 | _bfd_error_handler (_("GNU_MBIND section is unsupported")); | |
12172 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_ifunc) | |
12173 | _bfd_error_handler (_("symbol type STT_GNU_IFUNC is unsupported")); | |
12174 | if (elf_tdata (abfd)->has_gnu_osabi & elf_gnu_osabi_unique) | |
12175 | _bfd_error_handler (_("symbol binding STB_GNU_UNIQUE is unsupported")); | |
12176 | bfd_set_error (bfd_error_bad_value); | |
12177 | return FALSE; | |
12178 | } | |
12179 | } | |
12180 | return TRUE; | |
d1036acb | 12181 | } |
fcb93ecf PB |
12182 | |
12183 | ||
12184 | /* Return TRUE for ELF symbol types that represent functions. | |
12185 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12186 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12187 | |
12188 | bfd_boolean | |
12189 | _bfd_elf_is_function_type (unsigned int type) | |
12190 | { | |
d8045f23 NC |
12191 | return (type == STT_FUNC |
12192 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12193 | } |
9f296da3 | 12194 | |
aef36ac1 AM |
12195 | /* If the ELF symbol SYM might be a function in SEC, return the |
12196 | function size and set *CODE_OFF to the function's entry point, | |
12197 | otherwise return zero. */ | |
9f296da3 | 12198 | |
aef36ac1 AM |
12199 | bfd_size_type |
12200 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12201 | bfd_vma *code_off) | |
9f296da3 | 12202 | { |
aef36ac1 AM |
12203 | bfd_size_type size; |
12204 | ||
ff9e0f5b | 12205 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12206 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12207 | || sym->section != sec) | |
12208 | return 0; | |
ff9e0f5b | 12209 | |
ff9e0f5b | 12210 | *code_off = sym->value; |
aef36ac1 AM |
12211 | size = 0; |
12212 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12213 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12214 | if (size == 0) | |
12215 | size = 1; | |
12216 | return size; | |
9f296da3 | 12217 | } |