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 | ||
252b5132 RH |
1002 | /* Make a BFD section from an ELF section. We store a pointer to the |
1003 | BFD section in the bfd_section field of the header. */ | |
1004 | ||
b34976b6 | 1005 | bfd_boolean |
217aa764 AM |
1006 | _bfd_elf_make_section_from_shdr (bfd *abfd, |
1007 | Elf_Internal_Shdr *hdr, | |
6dc132d9 L |
1008 | const char *name, |
1009 | int shindex) | |
252b5132 RH |
1010 | { |
1011 | asection *newsect; | |
1012 | flagword flags; | |
9c5bfbb7 | 1013 | const struct elf_backend_data *bed; |
252b5132 RH |
1014 | |
1015 | if (hdr->bfd_section != NULL) | |
4e011fb5 | 1016 | return TRUE; |
252b5132 RH |
1017 | |
1018 | newsect = bfd_make_section_anyway (abfd, name); | |
1019 | if (newsect == NULL) | |
b34976b6 | 1020 | return FALSE; |
252b5132 | 1021 | |
1829f4b2 AM |
1022 | hdr->bfd_section = newsect; |
1023 | elf_section_data (newsect)->this_hdr = *hdr; | |
6dc132d9 | 1024 | elf_section_data (newsect)->this_idx = shindex; |
1829f4b2 | 1025 | |
2f89ff8d L |
1026 | /* Always use the real type/flags. */ |
1027 | elf_section_type (newsect) = hdr->sh_type; | |
1028 | elf_section_flags (newsect) = hdr->sh_flags; | |
1029 | ||
252b5132 RH |
1030 | newsect->filepos = hdr->sh_offset; |
1031 | ||
1032 | if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr) | |
1033 | || ! bfd_set_section_size (abfd, newsect, hdr->sh_size) | |
1034 | || ! bfd_set_section_alignment (abfd, newsect, | |
72de5009 | 1035 | bfd_log2 (hdr->sh_addralign))) |
b34976b6 | 1036 | return FALSE; |
252b5132 RH |
1037 | |
1038 | flags = SEC_NO_FLAGS; | |
1039 | if (hdr->sh_type != SHT_NOBITS) | |
1040 | flags |= SEC_HAS_CONTENTS; | |
dbb410c3 | 1041 | if (hdr->sh_type == SHT_GROUP) |
7bdf4127 | 1042 | flags |= SEC_GROUP; |
252b5132 RH |
1043 | if ((hdr->sh_flags & SHF_ALLOC) != 0) |
1044 | { | |
1045 | flags |= SEC_ALLOC; | |
1046 | if (hdr->sh_type != SHT_NOBITS) | |
1047 | flags |= SEC_LOAD; | |
1048 | } | |
1049 | if ((hdr->sh_flags & SHF_WRITE) == 0) | |
1050 | flags |= SEC_READONLY; | |
1051 | if ((hdr->sh_flags & SHF_EXECINSTR) != 0) | |
1052 | flags |= SEC_CODE; | |
1053 | else if ((flags & SEC_LOAD) != 0) | |
1054 | flags |= SEC_DATA; | |
f5fa8ca2 JJ |
1055 | if ((hdr->sh_flags & SHF_MERGE) != 0) |
1056 | { | |
1057 | flags |= SEC_MERGE; | |
1058 | newsect->entsize = hdr->sh_entsize; | |
f5fa8ca2 | 1059 | } |
84865015 NC |
1060 | if ((hdr->sh_flags & SHF_STRINGS) != 0) |
1061 | flags |= SEC_STRINGS; | |
dbb410c3 AM |
1062 | if (hdr->sh_flags & SHF_GROUP) |
1063 | if (!setup_group (abfd, hdr, newsect)) | |
b34976b6 | 1064 | return FALSE; |
13ae64f3 JJ |
1065 | if ((hdr->sh_flags & SHF_TLS) != 0) |
1066 | flags |= SEC_THREAD_LOCAL; | |
18ae9cc1 L |
1067 | if ((hdr->sh_flags & SHF_EXCLUDE) != 0) |
1068 | flags |= SEC_EXCLUDE; | |
252b5132 | 1069 | |
3d2b39cf | 1070 | if ((flags & SEC_ALLOC) == 0) |
7a6cc5fb | 1071 | { |
3d2b39cf L |
1072 | /* The debugging sections appear to be recognized only by name, |
1073 | not any sort of flag. Their SEC_ALLOC bits are cleared. */ | |
3d2b39cf L |
1074 | if (name [0] == '.') |
1075 | { | |
f073ced3 AM |
1076 | const char *p; |
1077 | int n; | |
1078 | if (name[1] == 'd') | |
1079 | p = ".debug", n = 6; | |
1080 | else if (name[1] == 'g' && name[2] == 'n') | |
1081 | p = ".gnu.linkonce.wi.", n = 17; | |
1082 | else if (name[1] == 'g' && name[2] == 'd') | |
1083 | p = ".gdb_index", n = 11; /* yes we really do mean 11. */ | |
1084 | else if (name[1] == 'l') | |
1085 | p = ".line", n = 5; | |
1086 | else if (name[1] == 's') | |
1087 | p = ".stab", n = 5; | |
1088 | else if (name[1] == 'z') | |
1089 | p = ".zdebug", n = 7; | |
1090 | else | |
1091 | p = NULL, n = 0; | |
1092 | if (p != NULL && strncmp (name, p, n) == 0) | |
3d2b39cf L |
1093 | flags |= SEC_DEBUGGING; |
1094 | } | |
1095 | } | |
252b5132 RH |
1096 | |
1097 | /* As a GNU extension, if the name begins with .gnu.linkonce, we | |
1098 | only link a single copy of the section. This is used to support | |
1099 | g++. g++ will emit each template expansion in its own section. | |
1100 | The symbols will be defined as weak, so that multiple definitions | |
1101 | are permitted. The GNU linker extension is to actually discard | |
1102 | all but one of the sections. */ | |
0112cd26 | 1103 | if (CONST_STRNEQ (name, ".gnu.linkonce") |
b885599b | 1104 | && elf_next_in_group (newsect) == NULL) |
252b5132 RH |
1105 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
1106 | ||
fa152c49 JW |
1107 | bed = get_elf_backend_data (abfd); |
1108 | if (bed->elf_backend_section_flags) | |
1109 | if (! bed->elf_backend_section_flags (&flags, hdr)) | |
b34976b6 | 1110 | return FALSE; |
fa152c49 | 1111 | |
252b5132 | 1112 | if (! bfd_set_section_flags (abfd, newsect, flags)) |
b34976b6 | 1113 | return FALSE; |
252b5132 | 1114 | |
718175fa JK |
1115 | /* We do not parse the PT_NOTE segments as we are interested even in the |
1116 | separate debug info files which may have the segments offsets corrupted. | |
1117 | PT_NOTEs from the core files are currently not parsed using BFD. */ | |
1118 | if (hdr->sh_type == SHT_NOTE) | |
1119 | { | |
baea7ef1 | 1120 | bfd_byte *contents; |
718175fa | 1121 | |
baea7ef1 | 1122 | if (!bfd_malloc_and_get_section (abfd, newsect, &contents)) |
718175fa JK |
1123 | return FALSE; |
1124 | ||
276da9b3 L |
1125 | elf_parse_notes (abfd, (char *) contents, hdr->sh_size, |
1126 | hdr->sh_offset, hdr->sh_addralign); | |
718175fa JK |
1127 | free (contents); |
1128 | } | |
1129 | ||
252b5132 RH |
1130 | if ((flags & SEC_ALLOC) != 0) |
1131 | { | |
1132 | Elf_Internal_Phdr *phdr; | |
6ffd7900 AM |
1133 | unsigned int i, nload; |
1134 | ||
1135 | /* Some ELF linkers produce binaries with all the program header | |
1136 | p_paddr fields zero. If we have such a binary with more than | |
1137 | one PT_LOAD header, then leave the section lma equal to vma | |
1138 | so that we don't create sections with overlapping lma. */ | |
1139 | phdr = elf_tdata (abfd)->phdr; | |
1140 | for (nload = 0, i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1141 | if (phdr->p_paddr != 0) | |
1142 | break; | |
1143 | else if (phdr->p_type == PT_LOAD && phdr->p_memsz != 0) | |
1144 | ++nload; | |
1145 | if (i >= elf_elfheader (abfd)->e_phnum && nload > 1) | |
1146 | return TRUE; | |
252b5132 | 1147 | |
252b5132 RH |
1148 | phdr = elf_tdata (abfd)->phdr; |
1149 | for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++) | |
1150 | { | |
86b2281f AM |
1151 | if (((phdr->p_type == PT_LOAD |
1152 | && (hdr->sh_flags & SHF_TLS) == 0) | |
1153 | || phdr->p_type == PT_TLS) | |
9a83a553 | 1154 | && ELF_SECTION_IN_SEGMENT (hdr, phdr)) |
252b5132 | 1155 | { |
88967714 AM |
1156 | if ((flags & SEC_LOAD) == 0) |
1157 | newsect->lma = (phdr->p_paddr | |
1158 | + hdr->sh_addr - phdr->p_vaddr); | |
1159 | else | |
1160 | /* We used to use the same adjustment for SEC_LOAD | |
1161 | sections, but that doesn't work if the segment | |
1162 | is packed with code from multiple VMAs. | |
1163 | Instead we calculate the section LMA based on | |
1164 | the segment LMA. It is assumed that the | |
1165 | segment will contain sections with contiguous | |
1166 | LMAs, even if the VMAs are not. */ | |
1167 | newsect->lma = (phdr->p_paddr | |
1168 | + hdr->sh_offset - phdr->p_offset); | |
1169 | ||
1170 | /* With contiguous segments, we can't tell from file | |
1171 | offsets whether a section with zero size should | |
1172 | be placed at the end of one segment or the | |
1173 | beginning of the next. Decide based on vaddr. */ | |
1174 | if (hdr->sh_addr >= phdr->p_vaddr | |
1175 | && (hdr->sh_addr + hdr->sh_size | |
1176 | <= phdr->p_vaddr + phdr->p_memsz)) | |
1177 | break; | |
252b5132 RH |
1178 | } |
1179 | } | |
1180 | } | |
1181 | ||
4a114e3e L |
1182 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
1183 | .zdebug_*, after the section flags is set. */ | |
1184 | if ((flags & SEC_DEBUGGING) | |
1185 | && ((name[1] == 'd' && name[6] == '_') | |
1186 | || (name[1] == 'z' && name[7] == '_'))) | |
1187 | { | |
1188 | enum { nothing, compress, decompress } action = nothing; | |
151411f8 | 1189 | int compression_header_size; |
dab394de | 1190 | bfd_size_type uncompressed_size; |
4207142d | 1191 | unsigned int uncompressed_align_power; |
151411f8 L |
1192 | bfd_boolean compressed |
1193 | = bfd_is_section_compressed_with_header (abfd, newsect, | |
dab394de | 1194 | &compression_header_size, |
4207142d MW |
1195 | &uncompressed_size, |
1196 | &uncompressed_align_power); | |
151411f8 | 1197 | if (compressed) |
4a114e3e L |
1198 | { |
1199 | /* Compressed section. Check if we should decompress. */ | |
1200 | if ((abfd->flags & BFD_DECOMPRESS)) | |
1201 | action = decompress; | |
1202 | } | |
151411f8 L |
1203 | |
1204 | /* Compress the uncompressed section or convert from/to .zdebug* | |
1205 | section. Check if we should compress. */ | |
1206 | if (action == nothing) | |
4a114e3e | 1207 | { |
151411f8 L |
1208 | if (newsect->size != 0 |
1209 | && (abfd->flags & BFD_COMPRESS) | |
1210 | && compression_header_size >= 0 | |
dab394de | 1211 | && uncompressed_size > 0 |
151411f8 L |
1212 | && (!compressed |
1213 | || ((compression_header_size > 0) | |
1214 | != ((abfd->flags & BFD_COMPRESS_GABI) != 0)))) | |
4a114e3e | 1215 | action = compress; |
151411f8 L |
1216 | else |
1217 | return TRUE; | |
4a114e3e L |
1218 | } |
1219 | ||
151411f8 | 1220 | if (action == compress) |
4a114e3e | 1221 | { |
4a114e3e L |
1222 | if (!bfd_init_section_compress_status (abfd, newsect)) |
1223 | { | |
4eca0228 | 1224 | _bfd_error_handler |
695344c0 | 1225 | /* xgettext:c-format */ |
871b3ab2 | 1226 | (_("%pB: unable to initialize compress status for section %s"), |
4a114e3e L |
1227 | abfd, name); |
1228 | return FALSE; | |
1229 | } | |
151411f8 L |
1230 | } |
1231 | else | |
1232 | { | |
4a114e3e L |
1233 | if (!bfd_init_section_decompress_status (abfd, newsect)) |
1234 | { | |
4eca0228 | 1235 | _bfd_error_handler |
695344c0 | 1236 | /* xgettext:c-format */ |
871b3ab2 | 1237 | (_("%pB: unable to initialize decompress status for section %s"), |
4a114e3e L |
1238 | abfd, name); |
1239 | return FALSE; | |
1240 | } | |
151411f8 L |
1241 | } |
1242 | ||
f6fe1ccd | 1243 | if (abfd->is_linker_input) |
151411f8 | 1244 | { |
f6fe1ccd L |
1245 | if (name[1] == 'z' |
1246 | && (action == decompress | |
1247 | || (action == compress | |
1248 | && (abfd->flags & BFD_COMPRESS_GABI) != 0))) | |
4e011fb5 | 1249 | { |
f6fe1ccd L |
1250 | /* Convert section name from .zdebug_* to .debug_* so |
1251 | that linker will consider this section as a debug | |
1252 | section. */ | |
1253 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
151411f8 L |
1254 | if (new_name == NULL) |
1255 | return FALSE; | |
f6fe1ccd | 1256 | bfd_rename_section (abfd, newsect, new_name); |
151411f8 | 1257 | } |
4a114e3e | 1258 | } |
f6fe1ccd L |
1259 | else |
1260 | /* For objdump, don't rename the section. For objcopy, delay | |
1261 | section rename to elf_fake_sections. */ | |
1262 | newsect->flags |= SEC_ELF_RENAME; | |
4a114e3e L |
1263 | } |
1264 | ||
b34976b6 | 1265 | return TRUE; |
252b5132 RH |
1266 | } |
1267 | ||
84865015 NC |
1268 | const char *const bfd_elf_section_type_names[] = |
1269 | { | |
252b5132 RH |
1270 | "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB", |
1271 | "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", | |
1272 | "SHT_NOBITS", "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM", | |
1273 | }; | |
1274 | ||
1049f94e | 1275 | /* ELF relocs are against symbols. If we are producing relocatable |
252b5132 RH |
1276 | output, and the reloc is against an external symbol, and nothing |
1277 | has given us any additional addend, the resulting reloc will also | |
1278 | be against the same symbol. In such a case, we don't want to | |
1279 | change anything about the way the reloc is handled, since it will | |
1280 | all be done at final link time. Rather than put special case code | |
1281 | into bfd_perform_relocation, all the reloc types use this howto | |
1282 | function. It just short circuits the reloc if producing | |
1049f94e | 1283 | relocatable output against an external symbol. */ |
252b5132 | 1284 | |
252b5132 | 1285 | bfd_reloc_status_type |
217aa764 AM |
1286 | bfd_elf_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
1287 | arelent *reloc_entry, | |
1288 | asymbol *symbol, | |
1289 | void *data ATTRIBUTE_UNUSED, | |
1290 | asection *input_section, | |
1291 | bfd *output_bfd, | |
1292 | char **error_message ATTRIBUTE_UNUSED) | |
1293 | { | |
1294 | if (output_bfd != NULL | |
252b5132 RH |
1295 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1296 | && (! reloc_entry->howto->partial_inplace | |
1297 | || reloc_entry->addend == 0)) | |
1298 | { | |
1299 | reloc_entry->address += input_section->output_offset; | |
1300 | return bfd_reloc_ok; | |
1301 | } | |
1302 | ||
1303 | return bfd_reloc_continue; | |
1304 | } | |
1305 | \f | |
84865015 NC |
1306 | /* Returns TRUE if section A matches section B. |
1307 | Names, addresses and links may be different, but everything else | |
1308 | should be the same. */ | |
1309 | ||
1310 | static bfd_boolean | |
5522f910 NC |
1311 | section_match (const Elf_Internal_Shdr * a, |
1312 | const Elf_Internal_Shdr * b) | |
84865015 | 1313 | { |
ac85e67c AM |
1314 | if (a->sh_type != b->sh_type |
1315 | || ((a->sh_flags ^ b->sh_flags) & ~SHF_INFO_LINK) != 0 | |
1316 | || a->sh_addralign != b->sh_addralign | |
1317 | || a->sh_entsize != b->sh_entsize) | |
1318 | return FALSE; | |
1319 | if (a->sh_type == SHT_SYMTAB | |
1320 | || a->sh_type == SHT_STRTAB) | |
1321 | return TRUE; | |
1322 | return a->sh_size == b->sh_size; | |
84865015 NC |
1323 | } |
1324 | ||
1325 | /* Find a section in OBFD that has the same characteristics | |
1326 | as IHEADER. Return the index of this section or SHN_UNDEF if | |
1327 | none can be found. Check's section HINT first, as this is likely | |
1328 | to be the correct section. */ | |
1329 | ||
1330 | static unsigned int | |
5cc4ca83 ST |
1331 | find_link (const bfd *obfd, const Elf_Internal_Shdr *iheader, |
1332 | const unsigned int hint) | |
84865015 NC |
1333 | { |
1334 | Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd); | |
1335 | unsigned int i; | |
1336 | ||
a55c9876 NC |
1337 | BFD_ASSERT (iheader != NULL); |
1338 | ||
1339 | /* See PR 20922 for a reproducer of the NULL test. */ | |
5cc4ca83 ST |
1340 | if (hint < elf_numsections (obfd) |
1341 | && oheaders[hint] != NULL | |
a55c9876 | 1342 | && section_match (oheaders[hint], iheader)) |
84865015 NC |
1343 | return hint; |
1344 | ||
1345 | for (i = 1; i < elf_numsections (obfd); i++) | |
1346 | { | |
1347 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
1348 | ||
a55c9876 NC |
1349 | if (oheader == NULL) |
1350 | continue; | |
84865015 NC |
1351 | if (section_match (oheader, iheader)) |
1352 | /* FIXME: Do we care if there is a potential for | |
1353 | multiple matches ? */ | |
1354 | return i; | |
1355 | } | |
1356 | ||
1357 | return SHN_UNDEF; | |
1358 | } | |
1359 | ||
5522f910 NC |
1360 | /* PR 19938: Attempt to set the ELF section header fields of an OS or |
1361 | Processor specific section, based upon a matching input section. | |
1362 | Returns TRUE upon success, FALSE otherwise. */ | |
07d6d2b8 | 1363 | |
5522f910 NC |
1364 | static bfd_boolean |
1365 | copy_special_section_fields (const bfd *ibfd, | |
1366 | bfd *obfd, | |
1367 | const Elf_Internal_Shdr *iheader, | |
1368 | Elf_Internal_Shdr *oheader, | |
1369 | const unsigned int secnum) | |
1370 | { | |
1371 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); | |
1372 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); | |
1373 | bfd_boolean changed = FALSE; | |
1374 | unsigned int sh_link; | |
1375 | ||
1376 | if (oheader->sh_type == SHT_NOBITS) | |
1377 | { | |
1378 | /* This is a feature for objcopy --only-keep-debug: | |
1379 | When a section's type is changed to NOBITS, we preserve | |
1380 | the sh_link and sh_info fields so that they can be | |
1381 | matched up with the original. | |
1382 | ||
1383 | Note: Strictly speaking these assignments are wrong. | |
1384 | The sh_link and sh_info fields should point to the | |
1385 | relevent sections in the output BFD, which may not be in | |
1386 | the same location as they were in the input BFD. But | |
1387 | the whole point of this action is to preserve the | |
1388 | original values of the sh_link and sh_info fields, so | |
1389 | that they can be matched up with the section headers in | |
1390 | the original file. So strictly speaking we may be | |
1391 | creating an invalid ELF file, but it is only for a file | |
1392 | that just contains debug info and only for sections | |
1393 | without any contents. */ | |
1394 | if (oheader->sh_link == 0) | |
1395 | oheader->sh_link = iheader->sh_link; | |
1396 | if (oheader->sh_info == 0) | |
1397 | oheader->sh_info = iheader->sh_info; | |
1398 | return TRUE; | |
1399 | } | |
1400 | ||
1401 | /* Allow the target a chance to decide how these fields should be set. */ | |
1402 | if (bed->elf_backend_copy_special_section_fields != NULL | |
1403 | && bed->elf_backend_copy_special_section_fields | |
1404 | (ibfd, obfd, iheader, oheader)) | |
1405 | return TRUE; | |
1406 | ||
1407 | /* We have an iheader which might match oheader, and which has non-zero | |
1408 | sh_info and/or sh_link fields. Attempt to follow those links and find | |
1409 | the section in the output bfd which corresponds to the linked section | |
1410 | in the input bfd. */ | |
1411 | if (iheader->sh_link != SHN_UNDEF) | |
1412 | { | |
4f3ca05b NC |
1413 | /* See PR 20931 for a reproducer. */ |
1414 | if (iheader->sh_link >= elf_numsections (ibfd)) | |
1415 | { | |
76cfced5 | 1416 | _bfd_error_handler |
4f3ca05b | 1417 | /* xgettext:c-format */ |
9793eb77 | 1418 | (_("%pB: invalid sh_link field (%d) in section number %d"), |
4f3ca05b NC |
1419 | ibfd, iheader->sh_link, secnum); |
1420 | return FALSE; | |
1421 | } | |
1422 | ||
5522f910 NC |
1423 | sh_link = find_link (obfd, iheaders[iheader->sh_link], iheader->sh_link); |
1424 | if (sh_link != SHN_UNDEF) | |
1425 | { | |
1426 | oheader->sh_link = sh_link; | |
1427 | changed = TRUE; | |
1428 | } | |
1429 | else | |
1430 | /* FIXME: Should we install iheader->sh_link | |
1431 | if we could not find a match ? */ | |
76cfced5 | 1432 | _bfd_error_handler |
695344c0 | 1433 | /* xgettext:c-format */ |
9793eb77 | 1434 | (_("%pB: failed to find link section for section %d"), obfd, secnum); |
5522f910 NC |
1435 | } |
1436 | ||
1437 | if (iheader->sh_info) | |
1438 | { | |
1439 | /* The sh_info field can hold arbitrary information, but if the | |
1440 | SHF_LINK_INFO flag is set then it should be interpreted as a | |
1441 | section index. */ | |
1442 | if (iheader->sh_flags & SHF_INFO_LINK) | |
1443 | { | |
1444 | sh_link = find_link (obfd, iheaders[iheader->sh_info], | |
1445 | iheader->sh_info); | |
1446 | if (sh_link != SHN_UNDEF) | |
1447 | oheader->sh_flags |= SHF_INFO_LINK; | |
1448 | } | |
1449 | else | |
1450 | /* No idea what it means - just copy it. */ | |
1451 | sh_link = iheader->sh_info; | |
1452 | ||
1453 | if (sh_link != SHN_UNDEF) | |
1454 | { | |
1455 | oheader->sh_info = sh_link; | |
1456 | changed = TRUE; | |
1457 | } | |
1458 | else | |
76cfced5 | 1459 | _bfd_error_handler |
695344c0 | 1460 | /* xgettext:c-format */ |
9793eb77 | 1461 | (_("%pB: failed to find info section for section %d"), obfd, secnum); |
5522f910 NC |
1462 | } |
1463 | ||
1464 | return changed; | |
1465 | } | |
07d6d2b8 | 1466 | |
0ac4564e L |
1467 | /* Copy the program header and other data from one object module to |
1468 | another. */ | |
252b5132 | 1469 | |
b34976b6 | 1470 | bfd_boolean |
217aa764 | 1471 | _bfd_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
2d502050 | 1472 | { |
5522f910 NC |
1473 | const Elf_Internal_Shdr **iheaders = (const Elf_Internal_Shdr **) elf_elfsections (ibfd); |
1474 | Elf_Internal_Shdr **oheaders = elf_elfsections (obfd); | |
1475 | const struct elf_backend_data *bed; | |
84865015 NC |
1476 | unsigned int i; |
1477 | ||
2d502050 | 1478 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
84865015 | 1479 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 1480 | return TRUE; |
2d502050 | 1481 | |
57b828ef L |
1482 | if (!elf_flags_init (obfd)) |
1483 | { | |
1484 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; | |
1485 | elf_flags_init (obfd) = TRUE; | |
1486 | } | |
2d502050 | 1487 | |
0ac4564e | 1488 | elf_gp (obfd) = elf_gp (ibfd); |
57b828ef L |
1489 | |
1490 | /* Also copy the EI_OSABI field. */ | |
1491 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
1492 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
104d59d1 | 1493 | |
5522f910 NC |
1494 | /* If set, copy the EI_ABIVERSION field. */ |
1495 | if (elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]) | |
1496 | elf_elfheader (obfd)->e_ident[EI_ABIVERSION] | |
1497 | = elf_elfheader (ibfd)->e_ident[EI_ABIVERSION]; | |
07d6d2b8 | 1498 | |
104d59d1 JM |
1499 | /* Copy object attributes. */ |
1500 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
63b9bbb7 | 1501 | |
84865015 NC |
1502 | if (iheaders == NULL || oheaders == NULL) |
1503 | return TRUE; | |
63b9bbb7 | 1504 | |
5522f910 NC |
1505 | bed = get_elf_backend_data (obfd); |
1506 | ||
1507 | /* Possibly copy other fields in the section header. */ | |
84865015 | 1508 | for (i = 1; i < elf_numsections (obfd); i++) |
63b9bbb7 | 1509 | { |
84865015 NC |
1510 | unsigned int j; |
1511 | Elf_Internal_Shdr * oheader = oheaders[i]; | |
63b9bbb7 | 1512 | |
5522f910 NC |
1513 | /* Ignore ordinary sections. SHT_NOBITS sections are considered however |
1514 | because of a special case need for generating separate debug info | |
1515 | files. See below for more details. */ | |
84865015 NC |
1516 | if (oheader == NULL |
1517 | || (oheader->sh_type != SHT_NOBITS | |
5522f910 NC |
1518 | && oheader->sh_type < SHT_LOOS)) |
1519 | continue; | |
1520 | ||
1521 | /* Ignore empty sections, and sections whose | |
1522 | fields have already been initialised. */ | |
1523 | if (oheader->sh_size == 0 | |
84865015 NC |
1524 | || (oheader->sh_info != 0 && oheader->sh_link != 0)) |
1525 | continue; | |
63b9bbb7 | 1526 | |
84865015 | 1527 | /* Scan for the matching section in the input bfd. |
5522f910 NC |
1528 | First we try for a direct mapping between the input and output sections. */ |
1529 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1530 | { | |
1531 | const Elf_Internal_Shdr * iheader = iheaders[j]; | |
1532 | ||
1533 | if (iheader == NULL) | |
1534 | continue; | |
1535 | ||
1536 | if (oheader->bfd_section != NULL | |
1537 | && iheader->bfd_section != NULL | |
1538 | && iheader->bfd_section->output_section != NULL | |
1539 | && iheader->bfd_section->output_section == oheader->bfd_section) | |
1540 | { | |
1541 | /* We have found a connection from the input section to the | |
1542 | output section. Attempt to copy the header fields. If | |
1543 | this fails then do not try any further sections - there | |
1544 | should only be a one-to-one mapping between input and output. */ | |
1545 | if (! copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) | |
1546 | j = elf_numsections (ibfd); | |
1547 | break; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | if (j < elf_numsections (ibfd)) | |
1552 | continue; | |
1553 | ||
1554 | /* That failed. So try to deduce the corresponding input section. | |
84865015 NC |
1555 | Unfortunately we cannot compare names as the output string table |
1556 | is empty, so instead we check size, address and type. */ | |
1557 | for (j = 1; j < elf_numsections (ibfd); j++) | |
1558 | { | |
5522f910 | 1559 | const Elf_Internal_Shdr * iheader = iheaders[j]; |
84865015 | 1560 | |
5522f910 NC |
1561 | if (iheader == NULL) |
1562 | continue; | |
1563 | ||
1564 | /* Try matching fields in the input section's header. | |
1565 | Since --only-keep-debug turns all non-debug sections into | |
84865015 NC |
1566 | SHT_NOBITS sections, the output SHT_NOBITS type matches any |
1567 | input type. */ | |
1568 | if ((oheader->sh_type == SHT_NOBITS | |
1569 | || iheader->sh_type == oheader->sh_type) | |
5522f910 NC |
1570 | && (iheader->sh_flags & ~ SHF_INFO_LINK) |
1571 | == (oheader->sh_flags & ~ SHF_INFO_LINK) | |
84865015 NC |
1572 | && iheader->sh_addralign == oheader->sh_addralign |
1573 | && iheader->sh_entsize == oheader->sh_entsize | |
1574 | && iheader->sh_size == oheader->sh_size | |
1575 | && iheader->sh_addr == oheader->sh_addr | |
1576 | && (iheader->sh_info != oheader->sh_info | |
1577 | || iheader->sh_link != oheader->sh_link)) | |
63b9bbb7 | 1578 | { |
5522f910 NC |
1579 | if (copy_special_section_fields (ibfd, obfd, iheader, oheader, i)) |
1580 | break; | |
63b9bbb7 NC |
1581 | } |
1582 | } | |
5522f910 NC |
1583 | |
1584 | if (j == elf_numsections (ibfd) && oheader->sh_type >= SHT_LOOS) | |
1585 | { | |
1586 | /* Final attempt. Call the backend copy function | |
1587 | with a NULL input section. */ | |
1588 | if (bed->elf_backend_copy_special_section_fields != NULL) | |
1589 | bed->elf_backend_copy_special_section_fields (ibfd, obfd, NULL, oheader); | |
1590 | } | |
63b9bbb7 NC |
1591 | } |
1592 | ||
b34976b6 | 1593 | return TRUE; |
2d502050 L |
1594 | } |
1595 | ||
cedc298e L |
1596 | static const char * |
1597 | get_segment_type (unsigned int p_type) | |
1598 | { | |
1599 | const char *pt; | |
1600 | switch (p_type) | |
1601 | { | |
1602 | case PT_NULL: pt = "NULL"; break; | |
1603 | case PT_LOAD: pt = "LOAD"; break; | |
1604 | case PT_DYNAMIC: pt = "DYNAMIC"; break; | |
1605 | case PT_INTERP: pt = "INTERP"; break; | |
1606 | case PT_NOTE: pt = "NOTE"; break; | |
1607 | case PT_SHLIB: pt = "SHLIB"; break; | |
1608 | case PT_PHDR: pt = "PHDR"; break; | |
1609 | case PT_TLS: pt = "TLS"; break; | |
1610 | case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break; | |
2b05f1b7 | 1611 | case PT_GNU_STACK: pt = "STACK"; break; |
cedc298e L |
1612 | case PT_GNU_RELRO: pt = "RELRO"; break; |
1613 | default: pt = NULL; break; | |
1614 | } | |
1615 | return pt; | |
1616 | } | |
1617 | ||
f0b79d91 L |
1618 | /* Print out the program headers. */ |
1619 | ||
b34976b6 | 1620 | bfd_boolean |
217aa764 | 1621 | _bfd_elf_print_private_bfd_data (bfd *abfd, void *farg) |
252b5132 | 1622 | { |
a50b1753 | 1623 | FILE *f = (FILE *) farg; |
252b5132 RH |
1624 | Elf_Internal_Phdr *p; |
1625 | asection *s; | |
1626 | bfd_byte *dynbuf = NULL; | |
1627 | ||
1628 | p = elf_tdata (abfd)->phdr; | |
1629 | if (p != NULL) | |
1630 | { | |
1631 | unsigned int i, c; | |
1632 | ||
1633 | fprintf (f, _("\nProgram Header:\n")); | |
1634 | c = elf_elfheader (abfd)->e_phnum; | |
1635 | for (i = 0; i < c; i++, p++) | |
1636 | { | |
cedc298e | 1637 | const char *pt = get_segment_type (p->p_type); |
252b5132 RH |
1638 | char buf[20]; |
1639 | ||
cedc298e | 1640 | if (pt == NULL) |
252b5132 | 1641 | { |
cedc298e L |
1642 | sprintf (buf, "0x%lx", p->p_type); |
1643 | pt = buf; | |
252b5132 | 1644 | } |
dc810e39 | 1645 | fprintf (f, "%8s off 0x", pt); |
60b89a18 | 1646 | bfd_fprintf_vma (abfd, f, p->p_offset); |
252b5132 | 1647 | fprintf (f, " vaddr 0x"); |
60b89a18 | 1648 | bfd_fprintf_vma (abfd, f, p->p_vaddr); |
252b5132 | 1649 | fprintf (f, " paddr 0x"); |
60b89a18 | 1650 | bfd_fprintf_vma (abfd, f, p->p_paddr); |
252b5132 RH |
1651 | fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align)); |
1652 | fprintf (f, " filesz 0x"); | |
60b89a18 | 1653 | bfd_fprintf_vma (abfd, f, p->p_filesz); |
252b5132 | 1654 | fprintf (f, " memsz 0x"); |
60b89a18 | 1655 | bfd_fprintf_vma (abfd, f, p->p_memsz); |
252b5132 RH |
1656 | fprintf (f, " flags %c%c%c", |
1657 | (p->p_flags & PF_R) != 0 ? 'r' : '-', | |
1658 | (p->p_flags & PF_W) != 0 ? 'w' : '-', | |
1659 | (p->p_flags & PF_X) != 0 ? 'x' : '-'); | |
dc810e39 AM |
1660 | if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0) |
1661 | fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)); | |
252b5132 RH |
1662 | fprintf (f, "\n"); |
1663 | } | |
1664 | } | |
1665 | ||
1666 | s = bfd_get_section_by_name (abfd, ".dynamic"); | |
1667 | if (s != NULL) | |
1668 | { | |
cb33740c | 1669 | unsigned int elfsec; |
dc810e39 | 1670 | unsigned long shlink; |
252b5132 RH |
1671 | bfd_byte *extdyn, *extdynend; |
1672 | size_t extdynsize; | |
217aa764 | 1673 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); |
252b5132 RH |
1674 | |
1675 | fprintf (f, _("\nDynamic Section:\n")); | |
1676 | ||
eea6121a | 1677 | if (!bfd_malloc_and_get_section (abfd, s, &dynbuf)) |
252b5132 RH |
1678 | goto error_return; |
1679 | ||
1680 | elfsec = _bfd_elf_section_from_bfd_section (abfd, s); | |
cb33740c | 1681 | if (elfsec == SHN_BAD) |
252b5132 | 1682 | goto error_return; |
dc810e39 | 1683 | shlink = elf_elfsections (abfd)[elfsec]->sh_link; |
252b5132 RH |
1684 | |
1685 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
1686 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
1687 | ||
1688 | extdyn = dynbuf; | |
06614111 NC |
1689 | /* PR 17512: file: 6f427532. */ |
1690 | if (s->size < extdynsize) | |
1691 | goto error_return; | |
eea6121a | 1692 | extdynend = extdyn + s->size; |
1036838a | 1693 | /* PR 17512: file: id:000006,sig:06,src:000000,op:flip4,pos:5664. |
07d6d2b8 | 1694 | Fix range check. */ |
1036838a | 1695 | for (; extdyn <= (extdynend - extdynsize); extdyn += extdynsize) |
252b5132 RH |
1696 | { |
1697 | Elf_Internal_Dyn dyn; | |
ad9563d6 | 1698 | const char *name = ""; |
252b5132 | 1699 | char ab[20]; |
b34976b6 | 1700 | bfd_boolean stringp; |
ad9563d6 | 1701 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 1702 | |
217aa764 | 1703 | (*swap_dyn_in) (abfd, extdyn, &dyn); |
252b5132 RH |
1704 | |
1705 | if (dyn.d_tag == DT_NULL) | |
1706 | break; | |
1707 | ||
b34976b6 | 1708 | stringp = FALSE; |
252b5132 RH |
1709 | switch (dyn.d_tag) |
1710 | { | |
1711 | default: | |
ad9563d6 CM |
1712 | if (bed->elf_backend_get_target_dtag) |
1713 | name = (*bed->elf_backend_get_target_dtag) (dyn.d_tag); | |
1714 | ||
1715 | if (!strcmp (name, "")) | |
1716 | { | |
cd9af601 | 1717 | sprintf (ab, "%#" BFD_VMA_FMT "x", dyn.d_tag); |
ad9563d6 CM |
1718 | name = ab; |
1719 | } | |
252b5132 RH |
1720 | break; |
1721 | ||
b34976b6 | 1722 | case DT_NEEDED: name = "NEEDED"; stringp = TRUE; break; |
252b5132 RH |
1723 | case DT_PLTRELSZ: name = "PLTRELSZ"; break; |
1724 | case DT_PLTGOT: name = "PLTGOT"; break; | |
1725 | case DT_HASH: name = "HASH"; break; | |
1726 | case DT_STRTAB: name = "STRTAB"; break; | |
1727 | case DT_SYMTAB: name = "SYMTAB"; break; | |
1728 | case DT_RELA: name = "RELA"; break; | |
1729 | case DT_RELASZ: name = "RELASZ"; break; | |
1730 | case DT_RELAENT: name = "RELAENT"; break; | |
1731 | case DT_STRSZ: name = "STRSZ"; break; | |
1732 | case DT_SYMENT: name = "SYMENT"; break; | |
1733 | case DT_INIT: name = "INIT"; break; | |
1734 | case DT_FINI: name = "FINI"; break; | |
b34976b6 AM |
1735 | case DT_SONAME: name = "SONAME"; stringp = TRUE; break; |
1736 | case DT_RPATH: name = "RPATH"; stringp = TRUE; break; | |
252b5132 RH |
1737 | case DT_SYMBOLIC: name = "SYMBOLIC"; break; |
1738 | case DT_REL: name = "REL"; break; | |
1739 | case DT_RELSZ: name = "RELSZ"; break; | |
1740 | case DT_RELENT: name = "RELENT"; break; | |
1741 | case DT_PLTREL: name = "PLTREL"; break; | |
1742 | case DT_DEBUG: name = "DEBUG"; break; | |
1743 | case DT_TEXTREL: name = "TEXTREL"; break; | |
1744 | case DT_JMPREL: name = "JMPREL"; break; | |
94558834 L |
1745 | case DT_BIND_NOW: name = "BIND_NOW"; break; |
1746 | case DT_INIT_ARRAY: name = "INIT_ARRAY"; break; | |
1747 | case DT_FINI_ARRAY: name = "FINI_ARRAY"; break; | |
1748 | case DT_INIT_ARRAYSZ: name = "INIT_ARRAYSZ"; break; | |
1749 | case DT_FINI_ARRAYSZ: name = "FINI_ARRAYSZ"; break; | |
b34976b6 | 1750 | case DT_RUNPATH: name = "RUNPATH"; stringp = TRUE; break; |
94558834 L |
1751 | case DT_FLAGS: name = "FLAGS"; break; |
1752 | case DT_PREINIT_ARRAY: name = "PREINIT_ARRAY"; break; | |
1753 | case DT_PREINIT_ARRAYSZ: name = "PREINIT_ARRAYSZ"; break; | |
d48188b9 | 1754 | case DT_CHECKSUM: name = "CHECKSUM"; break; |
94558834 L |
1755 | case DT_PLTPADSZ: name = "PLTPADSZ"; break; |
1756 | case DT_MOVEENT: name = "MOVEENT"; break; | |
1757 | case DT_MOVESZ: name = "MOVESZ"; break; | |
1758 | case DT_FEATURE: name = "FEATURE"; break; | |
1759 | case DT_POSFLAG_1: name = "POSFLAG_1"; break; | |
1760 | case DT_SYMINSZ: name = "SYMINSZ"; break; | |
1761 | case DT_SYMINENT: name = "SYMINENT"; break; | |
b34976b6 AM |
1762 | case DT_CONFIG: name = "CONFIG"; stringp = TRUE; break; |
1763 | case DT_DEPAUDIT: name = "DEPAUDIT"; stringp = TRUE; break; | |
1764 | case DT_AUDIT: name = "AUDIT"; stringp = TRUE; break; | |
94558834 L |
1765 | case DT_PLTPAD: name = "PLTPAD"; break; |
1766 | case DT_MOVETAB: name = "MOVETAB"; break; | |
1767 | case DT_SYMINFO: name = "SYMINFO"; break; | |
1768 | case DT_RELACOUNT: name = "RELACOUNT"; break; | |
1769 | case DT_RELCOUNT: name = "RELCOUNT"; break; | |
1770 | case DT_FLAGS_1: name = "FLAGS_1"; break; | |
252b5132 RH |
1771 | case DT_VERSYM: name = "VERSYM"; break; |
1772 | case DT_VERDEF: name = "VERDEF"; break; | |
1773 | case DT_VERDEFNUM: name = "VERDEFNUM"; break; | |
1774 | case DT_VERNEED: name = "VERNEED"; break; | |
1775 | case DT_VERNEEDNUM: name = "VERNEEDNUM"; break; | |
b34976b6 | 1776 | case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break; |
94558834 | 1777 | case DT_USED: name = "USED"; break; |
b34976b6 | 1778 | case DT_FILTER: name = "FILTER"; stringp = TRUE; break; |
fdc90cb4 | 1779 | case DT_GNU_HASH: name = "GNU_HASH"; break; |
252b5132 RH |
1780 | } |
1781 | ||
ad9563d6 | 1782 | fprintf (f, " %-20s ", name); |
252b5132 | 1783 | if (! stringp) |
a1f3c56e AN |
1784 | { |
1785 | fprintf (f, "0x"); | |
1786 | bfd_fprintf_vma (abfd, f, dyn.d_un.d_val); | |
1787 | } | |
252b5132 RH |
1788 | else |
1789 | { | |
1790 | const char *string; | |
dc810e39 | 1791 | unsigned int tagv = dyn.d_un.d_val; |
252b5132 | 1792 | |
dc810e39 | 1793 | string = bfd_elf_string_from_elf_section (abfd, shlink, tagv); |
252b5132 RH |
1794 | if (string == NULL) |
1795 | goto error_return; | |
1796 | fprintf (f, "%s", string); | |
1797 | } | |
1798 | fprintf (f, "\n"); | |
1799 | } | |
1800 | ||
1801 | free (dynbuf); | |
1802 | dynbuf = NULL; | |
1803 | } | |
1804 | ||
1805 | if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL) | |
1806 | || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL)) | |
1807 | { | |
fc0e6df6 | 1808 | if (! _bfd_elf_slurp_version_tables (abfd, FALSE)) |
b34976b6 | 1809 | return FALSE; |
252b5132 RH |
1810 | } |
1811 | ||
1812 | if (elf_dynverdef (abfd) != 0) | |
1813 | { | |
1814 | Elf_Internal_Verdef *t; | |
1815 | ||
1816 | fprintf (f, _("\nVersion definitions:\n")); | |
1817 | for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef) | |
1818 | { | |
1819 | fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx, | |
d0fb9a8d JJ |
1820 | t->vd_flags, t->vd_hash, |
1821 | t->vd_nodename ? t->vd_nodename : "<corrupt>"); | |
1822 | if (t->vd_auxptr != NULL && t->vd_auxptr->vda_nextptr != NULL) | |
252b5132 RH |
1823 | { |
1824 | Elf_Internal_Verdaux *a; | |
1825 | ||
1826 | fprintf (f, "\t"); | |
1827 | for (a = t->vd_auxptr->vda_nextptr; | |
1828 | a != NULL; | |
1829 | a = a->vda_nextptr) | |
d0fb9a8d JJ |
1830 | fprintf (f, "%s ", |
1831 | a->vda_nodename ? a->vda_nodename : "<corrupt>"); | |
252b5132 RH |
1832 | fprintf (f, "\n"); |
1833 | } | |
1834 | } | |
1835 | } | |
1836 | ||
1837 | if (elf_dynverref (abfd) != 0) | |
1838 | { | |
1839 | Elf_Internal_Verneed *t; | |
1840 | ||
1841 | fprintf (f, _("\nVersion References:\n")); | |
1842 | for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref) | |
1843 | { | |
1844 | Elf_Internal_Vernaux *a; | |
1845 | ||
d0fb9a8d JJ |
1846 | fprintf (f, _(" required from %s:\n"), |
1847 | t->vn_filename ? t->vn_filename : "<corrupt>"); | |
252b5132 RH |
1848 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) |
1849 | fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash, | |
d0fb9a8d JJ |
1850 | a->vna_flags, a->vna_other, |
1851 | a->vna_nodename ? a->vna_nodename : "<corrupt>"); | |
252b5132 RH |
1852 | } |
1853 | } | |
1854 | ||
b34976b6 | 1855 | return TRUE; |
252b5132 RH |
1856 | |
1857 | error_return: | |
1858 | if (dynbuf != NULL) | |
1859 | free (dynbuf); | |
b34976b6 | 1860 | return FALSE; |
252b5132 RH |
1861 | } |
1862 | ||
bb4d2ac2 L |
1863 | /* Get version string. */ |
1864 | ||
1865 | const char * | |
60bb06bc L |
1866 | _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, |
1867 | bfd_boolean *hidden) | |
bb4d2ac2 L |
1868 | { |
1869 | const char *version_string = NULL; | |
1870 | if (elf_dynversym (abfd) != 0 | |
1871 | && (elf_dynverdef (abfd) != 0 || elf_dynverref (abfd) != 0)) | |
1872 | { | |
1873 | unsigned int vernum = ((elf_symbol_type *) symbol)->version; | |
1874 | ||
1875 | *hidden = (vernum & VERSYM_HIDDEN) != 0; | |
1876 | vernum &= VERSYM_VERSION; | |
1877 | ||
1878 | if (vernum == 0) | |
1879 | version_string = ""; | |
1f6f5dba L |
1880 | else if (vernum == 1 |
1881 | && (vernum > elf_tdata (abfd)->cverdefs | |
1882 | || (elf_tdata (abfd)->verdef[0].vd_flags | |
1883 | == VER_FLG_BASE))) | |
bb4d2ac2 L |
1884 | version_string = "Base"; |
1885 | else if (vernum <= elf_tdata (abfd)->cverdefs) | |
1886 | version_string = | |
1887 | elf_tdata (abfd)->verdef[vernum - 1].vd_nodename; | |
1888 | else | |
1889 | { | |
1890 | Elf_Internal_Verneed *t; | |
1891 | ||
7a815dd5 | 1892 | version_string = _("<corrupt>"); |
bb4d2ac2 L |
1893 | for (t = elf_tdata (abfd)->verref; |
1894 | t != NULL; | |
1895 | t = t->vn_nextref) | |
1896 | { | |
1897 | Elf_Internal_Vernaux *a; | |
1898 | ||
1899 | for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr) | |
1900 | { | |
1901 | if (a->vna_other == vernum) | |
1902 | { | |
1903 | version_string = a->vna_nodename; | |
1904 | break; | |
1905 | } | |
1906 | } | |
1907 | } | |
1908 | } | |
1909 | } | |
1910 | return version_string; | |
1911 | } | |
1912 | ||
252b5132 RH |
1913 | /* Display ELF-specific fields of a symbol. */ |
1914 | ||
1915 | void | |
217aa764 AM |
1916 | bfd_elf_print_symbol (bfd *abfd, |
1917 | void *filep, | |
1918 | asymbol *symbol, | |
1919 | bfd_print_symbol_type how) | |
252b5132 | 1920 | { |
a50b1753 | 1921 | FILE *file = (FILE *) filep; |
252b5132 RH |
1922 | switch (how) |
1923 | { | |
1924 | case bfd_print_symbol_name: | |
1925 | fprintf (file, "%s", symbol->name); | |
1926 | break; | |
1927 | case bfd_print_symbol_more: | |
1928 | fprintf (file, "elf "); | |
60b89a18 | 1929 | bfd_fprintf_vma (abfd, file, symbol->value); |
cd9af601 | 1930 | fprintf (file, " %x", symbol->flags); |
252b5132 RH |
1931 | break; |
1932 | case bfd_print_symbol_all: | |
1933 | { | |
4e8a9624 AM |
1934 | const char *section_name; |
1935 | const char *name = NULL; | |
9c5bfbb7 | 1936 | const struct elf_backend_data *bed; |
7a13edea | 1937 | unsigned char st_other; |
dbb410c3 | 1938 | bfd_vma val; |
bb4d2ac2 L |
1939 | const char *version_string; |
1940 | bfd_boolean hidden; | |
c044fabd | 1941 | |
252b5132 | 1942 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
587ff49e RH |
1943 | |
1944 | bed = get_elf_backend_data (abfd); | |
1945 | if (bed->elf_backend_print_symbol_all) | |
c044fabd | 1946 | name = (*bed->elf_backend_print_symbol_all) (abfd, filep, symbol); |
587ff49e RH |
1947 | |
1948 | if (name == NULL) | |
1949 | { | |
7ee38065 | 1950 | name = symbol->name; |
217aa764 | 1951 | bfd_print_symbol_vandf (abfd, file, symbol); |
587ff49e RH |
1952 | } |
1953 | ||
252b5132 RH |
1954 | fprintf (file, " %s\t", section_name); |
1955 | /* Print the "other" value for a symbol. For common symbols, | |
1956 | we've already printed the size; now print the alignment. | |
1957 | For other symbols, we have no specified alignment, and | |
1958 | we've printed the address; now print the size. */ | |
dcf6c779 | 1959 | if (symbol->section && bfd_is_com_section (symbol->section)) |
dbb410c3 AM |
1960 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value; |
1961 | else | |
1962 | val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size; | |
1963 | bfd_fprintf_vma (abfd, file, val); | |
252b5132 RH |
1964 | |
1965 | /* If we have version information, print it. */ | |
60bb06bc L |
1966 | version_string = _bfd_elf_get_symbol_version_string (abfd, |
1967 | symbol, | |
1968 | &hidden); | |
bb4d2ac2 | 1969 | if (version_string) |
252b5132 | 1970 | { |
bb4d2ac2 | 1971 | if (!hidden) |
252b5132 RH |
1972 | fprintf (file, " %-11s", version_string); |
1973 | else | |
1974 | { | |
1975 | int i; | |
1976 | ||
1977 | fprintf (file, " (%s)", version_string); | |
1978 | for (i = 10 - strlen (version_string); i > 0; --i) | |
1979 | putc (' ', file); | |
1980 | } | |
1981 | } | |
1982 | ||
1983 | /* If the st_other field is not zero, print it. */ | |
7a13edea | 1984 | st_other = ((elf_symbol_type *) symbol)->internal_elf_sym.st_other; |
c044fabd | 1985 | |
7a13edea NC |
1986 | switch (st_other) |
1987 | { | |
1988 | case 0: break; | |
1989 | case STV_INTERNAL: fprintf (file, " .internal"); break; | |
1990 | case STV_HIDDEN: fprintf (file, " .hidden"); break; | |
1991 | case STV_PROTECTED: fprintf (file, " .protected"); break; | |
1992 | default: | |
1993 | /* Some other non-defined flags are also present, so print | |
1994 | everything hex. */ | |
1995 | fprintf (file, " 0x%02x", (unsigned int) st_other); | |
1996 | } | |
252b5132 | 1997 | |
587ff49e | 1998 | fprintf (file, " %s", name); |
252b5132 RH |
1999 | } |
2000 | break; | |
2001 | } | |
2002 | } | |
252b5132 RH |
2003 | \f |
2004 | /* ELF .o/exec file reading */ | |
2005 | ||
c044fabd | 2006 | /* Create a new bfd section from an ELF section header. */ |
252b5132 | 2007 | |
b34976b6 | 2008 | bfd_boolean |
217aa764 | 2009 | bfd_section_from_shdr (bfd *abfd, unsigned int shindex) |
252b5132 | 2010 | { |
4fbb74a6 AM |
2011 | Elf_Internal_Shdr *hdr; |
2012 | Elf_Internal_Ehdr *ehdr; | |
2013 | const struct elf_backend_data *bed; | |
90937f86 | 2014 | const char *name; |
bf67003b NC |
2015 | bfd_boolean ret = TRUE; |
2016 | static bfd_boolean * sections_being_created = NULL; | |
5a4b0ccc | 2017 | static bfd * sections_being_created_abfd = NULL; |
bf67003b | 2018 | static unsigned int nesting = 0; |
252b5132 | 2019 | |
4fbb74a6 AM |
2020 | if (shindex >= elf_numsections (abfd)) |
2021 | return FALSE; | |
2022 | ||
bf67003b NC |
2023 | if (++ nesting > 3) |
2024 | { | |
2025 | /* PR17512: A corrupt ELF binary might contain a recursive group of | |
67ce483b | 2026 | sections, with each the string indices pointing to the next in the |
bf67003b NC |
2027 | loop. Detect this here, by refusing to load a section that we are |
2028 | already in the process of loading. We only trigger this test if | |
2029 | we have nested at least three sections deep as normal ELF binaries | |
5a4b0ccc NC |
2030 | can expect to recurse at least once. |
2031 | ||
2032 | FIXME: It would be better if this array was attached to the bfd, | |
2033 | rather than being held in a static pointer. */ | |
2034 | ||
2035 | if (sections_being_created_abfd != abfd) | |
2036 | sections_being_created = NULL; | |
bf67003b NC |
2037 | if (sections_being_created == NULL) |
2038 | { | |
bf67003b | 2039 | sections_being_created = (bfd_boolean *) |
7a6e0d89 | 2040 | bfd_zalloc2 (abfd, elf_numsections (abfd), sizeof (bfd_boolean)); |
5a4b0ccc | 2041 | sections_being_created_abfd = abfd; |
bf67003b NC |
2042 | } |
2043 | if (sections_being_created [shindex]) | |
2044 | { | |
4eca0228 | 2045 | _bfd_error_handler |
871b3ab2 | 2046 | (_("%pB: warning: loop in section dependencies detected"), abfd); |
bf67003b NC |
2047 | return FALSE; |
2048 | } | |
2049 | sections_being_created [shindex] = TRUE; | |
2050 | } | |
2051 | ||
4fbb74a6 AM |
2052 | hdr = elf_elfsections (abfd)[shindex]; |
2053 | ehdr = elf_elfheader (abfd); | |
2054 | name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, | |
1b3a8575 | 2055 | hdr->sh_name); |
933d961a | 2056 | if (name == NULL) |
bf67003b | 2057 | goto fail; |
252b5132 | 2058 | |
4fbb74a6 | 2059 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
2060 | switch (hdr->sh_type) |
2061 | { | |
2062 | case SHT_NULL: | |
2063 | /* Inactive section. Throw it away. */ | |
bf67003b | 2064 | goto success; |
252b5132 | 2065 | |
bf67003b NC |
2066 | case SHT_PROGBITS: /* Normal section with contents. */ |
2067 | case SHT_NOBITS: /* .bss section. */ | |
2068 | case SHT_HASH: /* .hash section. */ | |
2069 | case SHT_NOTE: /* .note section. */ | |
25e27870 L |
2070 | case SHT_INIT_ARRAY: /* .init_array section. */ |
2071 | case SHT_FINI_ARRAY: /* .fini_array section. */ | |
2072 | case SHT_PREINIT_ARRAY: /* .preinit_array section. */ | |
7f1204bb | 2073 | case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ |
fdc90cb4 | 2074 | case SHT_GNU_HASH: /* .gnu.hash section. */ |
bf67003b NC |
2075 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2076 | goto success; | |
252b5132 | 2077 | |
797fc050 | 2078 | case SHT_DYNAMIC: /* Dynamic linking information. */ |
6dc132d9 | 2079 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2080 | goto fail; |
2081 | ||
cfcac11d NC |
2082 | if (hdr->sh_link > elf_numsections (abfd)) |
2083 | { | |
caa83f8b | 2084 | /* PR 10478: Accept Solaris binaries with a sh_link |
cfcac11d NC |
2085 | field set to SHN_BEFORE or SHN_AFTER. */ |
2086 | switch (bfd_get_arch (abfd)) | |
2087 | { | |
caa83f8b | 2088 | case bfd_arch_i386: |
cfcac11d NC |
2089 | case bfd_arch_sparc: |
2090 | if (hdr->sh_link == (SHN_LORESERVE & 0xffff) /* SHN_BEFORE */ | |
2091 | || hdr->sh_link == ((SHN_LORESERVE + 1) & 0xffff) /* SHN_AFTER */) | |
2092 | break; | |
2093 | /* Otherwise fall through. */ | |
2094 | default: | |
bf67003b | 2095 | goto fail; |
cfcac11d NC |
2096 | } |
2097 | } | |
2098 | else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) | |
bf67003b | 2099 | goto fail; |
cfcac11d | 2100 | else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) |
797fc050 AM |
2101 | { |
2102 | Elf_Internal_Shdr *dynsymhdr; | |
2103 | ||
2104 | /* The shared libraries distributed with hpux11 have a bogus | |
2105 | sh_link field for the ".dynamic" section. Find the | |
2106 | string table for the ".dynsym" section instead. */ | |
2107 | if (elf_dynsymtab (abfd) != 0) | |
2108 | { | |
2109 | dynsymhdr = elf_elfsections (abfd)[elf_dynsymtab (abfd)]; | |
2110 | hdr->sh_link = dynsymhdr->sh_link; | |
2111 | } | |
2112 | else | |
2113 | { | |
2114 | unsigned int i, num_sec; | |
2115 | ||
2116 | num_sec = elf_numsections (abfd); | |
2117 | for (i = 1; i < num_sec; i++) | |
2118 | { | |
2119 | dynsymhdr = elf_elfsections (abfd)[i]; | |
2120 | if (dynsymhdr->sh_type == SHT_DYNSYM) | |
2121 | { | |
2122 | hdr->sh_link = dynsymhdr->sh_link; | |
2123 | break; | |
2124 | } | |
2125 | } | |
2126 | } | |
2127 | } | |
bf67003b | 2128 | goto success; |
797fc050 | 2129 | |
bf67003b | 2130 | case SHT_SYMTAB: /* A symbol table. */ |
252b5132 | 2131 | if (elf_onesymtab (abfd) == shindex) |
bf67003b | 2132 | goto success; |
252b5132 | 2133 | |
a50b2160 | 2134 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2135 | goto fail; |
2136 | ||
3337c1e5 | 2137 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
eee3b786 AM |
2138 | { |
2139 | if (hdr->sh_size != 0) | |
bf67003b | 2140 | goto fail; |
eee3b786 AM |
2141 | /* Some assemblers erroneously set sh_info to one with a |
2142 | zero sh_size. ld sees this as a global symbol count | |
2143 | of (unsigned) -1. Fix it here. */ | |
2144 | hdr->sh_info = 0; | |
bf67003b | 2145 | goto success; |
eee3b786 | 2146 | } |
bf67003b | 2147 | |
16ad13ec NC |
2148 | /* PR 18854: A binary might contain more than one symbol table. |
2149 | Unusual, but possible. Warn, but continue. */ | |
2150 | if (elf_onesymtab (abfd) != 0) | |
2151 | { | |
4eca0228 | 2152 | _bfd_error_handler |
695344c0 | 2153 | /* xgettext:c-format */ |
871b3ab2 | 2154 | (_("%pB: warning: multiple symbol tables detected" |
63a5468a | 2155 | " - ignoring the table in section %u"), |
16ad13ec NC |
2156 | abfd, shindex); |
2157 | goto success; | |
2158 | } | |
252b5132 | 2159 | elf_onesymtab (abfd) = shindex; |
6a40cf0c NC |
2160 | elf_symtab_hdr (abfd) = *hdr; |
2161 | elf_elfsections (abfd)[shindex] = hdr = & elf_symtab_hdr (abfd); | |
252b5132 RH |
2162 | abfd->flags |= HAS_SYMS; |
2163 | ||
2164 | /* Sometimes a shared object will map in the symbol table. If | |
08a40648 AM |
2165 | SHF_ALLOC is set, and this is a shared object, then we also |
2166 | treat this section as a BFD section. We can not base the | |
2167 | decision purely on SHF_ALLOC, because that flag is sometimes | |
2168 | set in a relocatable object file, which would confuse the | |
2169 | linker. */ | |
252b5132 RH |
2170 | if ((hdr->sh_flags & SHF_ALLOC) != 0 |
2171 | && (abfd->flags & DYNAMIC) != 0 | |
6dc132d9 L |
2172 | && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2173 | shindex)) | |
bf67003b | 2174 | goto fail; |
252b5132 | 2175 | |
1b3a8575 AM |
2176 | /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we |
2177 | can't read symbols without that section loaded as well. It | |
2178 | is most likely specified by the next section header. */ | |
6a40cf0c NC |
2179 | { |
2180 | elf_section_list * entry; | |
2181 | unsigned int i, num_sec; | |
1b3a8575 | 2182 | |
6a40cf0c NC |
2183 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2184 | if (entry->hdr.sh_link == shindex) | |
2185 | goto success; | |
2186 | ||
2187 | num_sec = elf_numsections (abfd); | |
2188 | for (i = shindex + 1; i < num_sec; i++) | |
2189 | { | |
2190 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2191 | ||
2192 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX | |
2193 | && hdr2->sh_link == shindex) | |
2194 | break; | |
2195 | } | |
2196 | ||
2197 | if (i == num_sec) | |
2198 | for (i = 1; i < shindex; i++) | |
1b3a8575 AM |
2199 | { |
2200 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
6a40cf0c | 2201 | |
1b3a8575 AM |
2202 | if (hdr2->sh_type == SHT_SYMTAB_SHNDX |
2203 | && hdr2->sh_link == shindex) | |
2204 | break; | |
2205 | } | |
6a40cf0c NC |
2206 | |
2207 | if (i != shindex) | |
2208 | ret = bfd_section_from_shdr (abfd, i); | |
2209 | /* else FIXME: we have failed to find the symbol table - should we issue an error ? */ | |
2210 | goto success; | |
2211 | } | |
252b5132 | 2212 | |
bf67003b | 2213 | case SHT_DYNSYM: /* A dynamic symbol table. */ |
252b5132 | 2214 | if (elf_dynsymtab (abfd) == shindex) |
bf67003b | 2215 | goto success; |
252b5132 | 2216 | |
a50b2160 | 2217 | if (hdr->sh_entsize != bed->s->sizeof_sym) |
bf67003b NC |
2218 | goto fail; |
2219 | ||
eee3b786 AM |
2220 | if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) |
2221 | { | |
2222 | if (hdr->sh_size != 0) | |
bf67003b NC |
2223 | goto fail; |
2224 | ||
eee3b786 AM |
2225 | /* Some linkers erroneously set sh_info to one with a |
2226 | zero sh_size. ld sees this as a global symbol count | |
2227 | of (unsigned) -1. Fix it here. */ | |
2228 | hdr->sh_info = 0; | |
bf67003b | 2229 | goto success; |
eee3b786 | 2230 | } |
bf67003b | 2231 | |
16ad13ec NC |
2232 | /* PR 18854: A binary might contain more than one dynamic symbol table. |
2233 | Unusual, but possible. Warn, but continue. */ | |
2234 | if (elf_dynsymtab (abfd) != 0) | |
2235 | { | |
4eca0228 | 2236 | _bfd_error_handler |
695344c0 | 2237 | /* xgettext:c-format */ |
871b3ab2 | 2238 | (_("%pB: warning: multiple dynamic symbol tables detected" |
63a5468a | 2239 | " - ignoring the table in section %u"), |
16ad13ec NC |
2240 | abfd, shindex); |
2241 | goto success; | |
2242 | } | |
252b5132 RH |
2243 | elf_dynsymtab (abfd) = shindex; |
2244 | elf_tdata (abfd)->dynsymtab_hdr = *hdr; | |
2245 | elf_elfsections (abfd)[shindex] = hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
2246 | abfd->flags |= HAS_SYMS; | |
2247 | ||
2248 | /* Besides being a symbol table, we also treat this as a regular | |
2249 | section, so that objcopy can handle it. */ | |
bf67003b NC |
2250 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2251 | goto success; | |
252b5132 | 2252 | |
bf67003b | 2253 | case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ |
6a40cf0c NC |
2254 | { |
2255 | elf_section_list * entry; | |
9ad5cbcf | 2256 | |
6a40cf0c NC |
2257 | for (entry = elf_symtab_shndx_list (abfd); entry != NULL; entry = entry->next) |
2258 | if (entry->ndx == shindex) | |
2259 | goto success; | |
07d6d2b8 | 2260 | |
7a6e0d89 | 2261 | entry = bfd_alloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
2262 | if (entry == NULL) |
2263 | goto fail; | |
2264 | entry->ndx = shindex; | |
2265 | entry->hdr = * hdr; | |
2266 | entry->next = elf_symtab_shndx_list (abfd); | |
2267 | elf_symtab_shndx_list (abfd) = entry; | |
2268 | elf_elfsections (abfd)[shindex] = & entry->hdr; | |
2269 | goto success; | |
2270 | } | |
9ad5cbcf | 2271 | |
bf67003b | 2272 | case SHT_STRTAB: /* A string table. */ |
252b5132 | 2273 | if (hdr->bfd_section != NULL) |
bf67003b NC |
2274 | goto success; |
2275 | ||
252b5132 RH |
2276 | if (ehdr->e_shstrndx == shindex) |
2277 | { | |
2278 | elf_tdata (abfd)->shstrtab_hdr = *hdr; | |
2279 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; | |
bf67003b | 2280 | goto success; |
252b5132 | 2281 | } |
bf67003b | 2282 | |
1b3a8575 AM |
2283 | if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) |
2284 | { | |
2285 | symtab_strtab: | |
2286 | elf_tdata (abfd)->strtab_hdr = *hdr; | |
2287 | elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; | |
bf67003b | 2288 | goto success; |
1b3a8575 | 2289 | } |
bf67003b | 2290 | |
1b3a8575 AM |
2291 | if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) |
2292 | { | |
2293 | dynsymtab_strtab: | |
2294 | elf_tdata (abfd)->dynstrtab_hdr = *hdr; | |
2295 | hdr = &elf_tdata (abfd)->dynstrtab_hdr; | |
2296 | elf_elfsections (abfd)[shindex] = hdr; | |
2297 | /* We also treat this as a regular section, so that objcopy | |
2298 | can handle it. */ | |
bf67003b NC |
2299 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2300 | shindex); | |
2301 | goto success; | |
1b3a8575 | 2302 | } |
252b5132 | 2303 | |
1b3a8575 AM |
2304 | /* If the string table isn't one of the above, then treat it as a |
2305 | regular section. We need to scan all the headers to be sure, | |
2306 | just in case this strtab section appeared before the above. */ | |
2307 | if (elf_onesymtab (abfd) == 0 || elf_dynsymtab (abfd) == 0) | |
2308 | { | |
2309 | unsigned int i, num_sec; | |
252b5132 | 2310 | |
1b3a8575 AM |
2311 | num_sec = elf_numsections (abfd); |
2312 | for (i = 1; i < num_sec; i++) | |
2313 | { | |
2314 | Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i]; | |
2315 | if (hdr2->sh_link == shindex) | |
2316 | { | |
933d961a JJ |
2317 | /* Prevent endless recursion on broken objects. */ |
2318 | if (i == shindex) | |
bf67003b | 2319 | goto fail; |
1b3a8575 | 2320 | if (! bfd_section_from_shdr (abfd, i)) |
bf67003b | 2321 | goto fail; |
1b3a8575 AM |
2322 | if (elf_onesymtab (abfd) == i) |
2323 | goto symtab_strtab; | |
2324 | if (elf_dynsymtab (abfd) == i) | |
2325 | goto dynsymtab_strtab; | |
2326 | } | |
2327 | } | |
2328 | } | |
bf67003b NC |
2329 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2330 | goto success; | |
252b5132 RH |
2331 | |
2332 | case SHT_REL: | |
2333 | case SHT_RELA: | |
2334 | /* *These* do a lot of work -- but build no sections! */ | |
2335 | { | |
2336 | asection *target_sect; | |
d4730f92 | 2337 | Elf_Internal_Shdr *hdr2, **p_hdr; |
9ad5cbcf | 2338 | unsigned int num_sec = elf_numsections (abfd); |
d4730f92 | 2339 | struct bfd_elf_section_data *esdt; |
252b5132 | 2340 | |
aa2ca951 JJ |
2341 | if (hdr->sh_entsize |
2342 | != (bfd_size_type) (hdr->sh_type == SHT_REL | |
a50b2160 | 2343 | ? bed->s->sizeof_rel : bed->s->sizeof_rela)) |
bf67003b | 2344 | goto fail; |
a50b2160 | 2345 | |
03ae5f59 | 2346 | /* Check for a bogus link to avoid crashing. */ |
4fbb74a6 | 2347 | if (hdr->sh_link >= num_sec) |
03ae5f59 | 2348 | { |
4eca0228 | 2349 | _bfd_error_handler |
695344c0 | 2350 | /* xgettext:c-format */ |
871b3ab2 | 2351 | (_("%pB: invalid link %u for reloc section %s (index %u)"), |
4eca0228 | 2352 | abfd, hdr->sh_link, name, shindex); |
bf67003b NC |
2353 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, |
2354 | shindex); | |
2355 | goto success; | |
03ae5f59 ILT |
2356 | } |
2357 | ||
252b5132 RH |
2358 | /* For some incomprehensible reason Oracle distributes |
2359 | libraries for Solaris in which some of the objects have | |
2360 | bogus sh_link fields. It would be nice if we could just | |
2361 | reject them, but, unfortunately, some people need to use | |
2362 | them. We scan through the section headers; if we find only | |
2363 | one suitable symbol table, we clobber the sh_link to point | |
83b89087 L |
2364 | to it. I hope this doesn't break anything. |
2365 | ||
2366 | Don't do it on executable nor shared library. */ | |
2367 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0 | |
2368 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB | |
252b5132 RH |
2369 | && elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM) |
2370 | { | |
9ad5cbcf | 2371 | unsigned int scan; |
252b5132 RH |
2372 | int found; |
2373 | ||
2374 | found = 0; | |
9ad5cbcf | 2375 | for (scan = 1; scan < num_sec; scan++) |
252b5132 RH |
2376 | { |
2377 | if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB | |
2378 | || elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM) | |
2379 | { | |
2380 | if (found != 0) | |
2381 | { | |
2382 | found = 0; | |
2383 | break; | |
2384 | } | |
2385 | found = scan; | |
2386 | } | |
2387 | } | |
2388 | if (found != 0) | |
2389 | hdr->sh_link = found; | |
2390 | } | |
2391 | ||
2392 | /* Get the symbol table. */ | |
1b3a8575 AM |
2393 | if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB |
2394 | || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) | |
252b5132 | 2395 | && ! bfd_section_from_shdr (abfd, hdr->sh_link)) |
bf67003b | 2396 | goto fail; |
252b5132 | 2397 | |
a4bcd733 AM |
2398 | /* If this is an alloc section in an executable or shared |
2399 | library, or the reloc section does not use the main symbol | |
2400 | table we don't treat it as a reloc section. BFD can't | |
2401 | adequately represent such a section, so at least for now, | |
2402 | we don't try. We just present it as a normal section. We | |
2403 | also can't use it as a reloc section if it points to the | |
2404 | null section, an invalid section, another reloc section, or | |
2405 | its sh_link points to the null section. */ | |
2406 | if (((abfd->flags & (DYNAMIC | EXEC_P)) != 0 | |
2407 | && (hdr->sh_flags & SHF_ALLOC) != 0) | |
83b89087 | 2408 | || hdr->sh_link == SHN_UNDEF |
a4bcd733 | 2409 | || hdr->sh_link != elf_onesymtab (abfd) |
185ef66d | 2410 | || hdr->sh_info == SHN_UNDEF |
185ef66d AM |
2411 | || hdr->sh_info >= num_sec |
2412 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL | |
2413 | || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) | |
bf67003b NC |
2414 | { |
2415 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2416 | shindex); | |
2417 | goto success; | |
2418 | } | |
252b5132 RH |
2419 | |
2420 | if (! bfd_section_from_shdr (abfd, hdr->sh_info)) | |
bf67003b NC |
2421 | goto fail; |
2422 | ||
252b5132 RH |
2423 | target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); |
2424 | if (target_sect == NULL) | |
bf67003b | 2425 | goto fail; |
252b5132 | 2426 | |
d4730f92 BS |
2427 | esdt = elf_section_data (target_sect); |
2428 | if (hdr->sh_type == SHT_RELA) | |
2429 | p_hdr = &esdt->rela.hdr; | |
252b5132 | 2430 | else |
d4730f92 BS |
2431 | p_hdr = &esdt->rel.hdr; |
2432 | ||
06614111 NC |
2433 | /* PR 17512: file: 0b4f81b7. */ |
2434 | if (*p_hdr != NULL) | |
2435 | goto fail; | |
ef53be89 | 2436 | hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2)); |
d4730f92 | 2437 | if (hdr2 == NULL) |
bf67003b | 2438 | goto fail; |
252b5132 | 2439 | *hdr2 = *hdr; |
d4730f92 | 2440 | *p_hdr = hdr2; |
252b5132 | 2441 | elf_elfsections (abfd)[shindex] = hdr2; |
056bafd4 MR |
2442 | target_sect->reloc_count += (NUM_SHDR_ENTRIES (hdr) |
2443 | * bed->s->int_rels_per_ext_rel); | |
252b5132 RH |
2444 | target_sect->flags |= SEC_RELOC; |
2445 | target_sect->relocation = NULL; | |
2446 | target_sect->rel_filepos = hdr->sh_offset; | |
bf572ba0 MM |
2447 | /* In the section to which the relocations apply, mark whether |
2448 | its relocations are of the REL or RELA variety. */ | |
72730e0c | 2449 | if (hdr->sh_size != 0) |
d4730f92 BS |
2450 | { |
2451 | if (hdr->sh_type == SHT_RELA) | |
2452 | target_sect->use_rela_p = 1; | |
2453 | } | |
252b5132 | 2454 | abfd->flags |= HAS_RELOC; |
bf67003b | 2455 | goto success; |
252b5132 | 2456 | } |
252b5132 RH |
2457 | |
2458 | case SHT_GNU_verdef: | |
2459 | elf_dynverdef (abfd) = shindex; | |
2460 | elf_tdata (abfd)->dynverdef_hdr = *hdr; | |
bf67003b NC |
2461 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2462 | goto success; | |
252b5132 RH |
2463 | |
2464 | case SHT_GNU_versym: | |
a50b2160 | 2465 | if (hdr->sh_entsize != sizeof (Elf_External_Versym)) |
bf67003b NC |
2466 | goto fail; |
2467 | ||
252b5132 RH |
2468 | elf_dynversym (abfd) = shindex; |
2469 | elf_tdata (abfd)->dynversym_hdr = *hdr; | |
bf67003b NC |
2470 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2471 | goto success; | |
252b5132 RH |
2472 | |
2473 | case SHT_GNU_verneed: | |
2474 | elf_dynverref (abfd) = shindex; | |
2475 | elf_tdata (abfd)->dynverref_hdr = *hdr; | |
bf67003b NC |
2476 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); |
2477 | goto success; | |
252b5132 RH |
2478 | |
2479 | case SHT_SHLIB: | |
bf67003b | 2480 | goto success; |
252b5132 | 2481 | |
dbb410c3 | 2482 | case SHT_GROUP: |
44534af3 | 2483 | if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) |
bf67003b NC |
2484 | goto fail; |
2485 | ||
6dc132d9 | 2486 | if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b NC |
2487 | goto fail; |
2488 | ||
bf67003b | 2489 | goto success; |
dbb410c3 | 2490 | |
252b5132 | 2491 | default: |
104d59d1 JM |
2492 | /* Possibly an attributes section. */ |
2493 | if (hdr->sh_type == SHT_GNU_ATTRIBUTES | |
2494 | || hdr->sh_type == bed->obj_attrs_section_type) | |
2495 | { | |
2496 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) | |
bf67003b | 2497 | goto fail; |
104d59d1 | 2498 | _bfd_elf_parse_attributes (abfd, hdr); |
bf67003b | 2499 | goto success; |
104d59d1 JM |
2500 | } |
2501 | ||
252b5132 | 2502 | /* Check for any processor-specific section types. */ |
3eb70a79 | 2503 | if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) |
bf67003b | 2504 | goto success; |
3eb70a79 L |
2505 | |
2506 | if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) | |
2507 | { | |
2508 | if ((hdr->sh_flags & SHF_ALLOC) != 0) | |
2509 | /* FIXME: How to properly handle allocated section reserved | |
2510 | for applications? */ | |
4eca0228 | 2511 | _bfd_error_handler |
695344c0 | 2512 | /* xgettext:c-format */ |
871b3ab2 | 2513 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2514 | abfd, hdr->sh_type, name); |
3eb70a79 | 2515 | else |
bf67003b NC |
2516 | { |
2517 | /* Allow sections reserved for applications. */ | |
2518 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, | |
2519 | shindex); | |
2520 | goto success; | |
2521 | } | |
3eb70a79 L |
2522 | } |
2523 | else if (hdr->sh_type >= SHT_LOPROC | |
2524 | && hdr->sh_type <= SHT_HIPROC) | |
2525 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2526 | _bfd_error_handler |
695344c0 | 2527 | /* xgettext:c-format */ |
871b3ab2 | 2528 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2529 | abfd, hdr->sh_type, name); |
3eb70a79 | 2530 | else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS) |
ff15b240 NC |
2531 | { |
2532 | /* Unrecognised OS-specific sections. */ | |
2533 | if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0) | |
2534 | /* SHF_OS_NONCONFORMING indicates that special knowledge is | |
08a40648 | 2535 | required to correctly process the section and the file should |
ff15b240 | 2536 | be rejected with an error message. */ |
4eca0228 | 2537 | _bfd_error_handler |
695344c0 | 2538 | /* xgettext:c-format */ |
871b3ab2 | 2539 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2540 | abfd, hdr->sh_type, name); |
ff15b240 | 2541 | else |
bf67003b NC |
2542 | { |
2543 | /* Otherwise it should be processed. */ | |
2544 | ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); | |
2545 | goto success; | |
2546 | } | |
ff15b240 | 2547 | } |
3eb70a79 L |
2548 | else |
2549 | /* FIXME: We should handle this section. */ | |
4eca0228 | 2550 | _bfd_error_handler |
695344c0 | 2551 | /* xgettext:c-format */ |
871b3ab2 | 2552 | (_("%pB: unknown type [%#x] section `%s'"), |
76cfced5 | 2553 | abfd, hdr->sh_type, name); |
3eb70a79 | 2554 | |
bf67003b | 2555 | goto fail; |
252b5132 RH |
2556 | } |
2557 | ||
bf67003b NC |
2558 | fail: |
2559 | ret = FALSE; | |
2560 | success: | |
e5b470e2 | 2561 | if (sections_being_created && sections_being_created_abfd == abfd) |
bf67003b NC |
2562 | sections_being_created [shindex] = FALSE; |
2563 | if (-- nesting == 0) | |
5a4b0ccc NC |
2564 | { |
2565 | sections_being_created = NULL; | |
2566 | sections_being_created_abfd = abfd; | |
2567 | } | |
bf67003b | 2568 | return ret; |
252b5132 RH |
2569 | } |
2570 | ||
87d72d41 | 2571 | /* Return the local symbol specified by ABFD, R_SYMNDX. */ |
ec338859 | 2572 | |
87d72d41 AM |
2573 | Elf_Internal_Sym * |
2574 | bfd_sym_from_r_symndx (struct sym_cache *cache, | |
2575 | bfd *abfd, | |
2576 | unsigned long r_symndx) | |
ec338859 | 2577 | { |
ec338859 AM |
2578 | unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE; |
2579 | ||
a5d1b3b5 AM |
2580 | if (cache->abfd != abfd || cache->indx[ent] != r_symndx) |
2581 | { | |
2582 | Elf_Internal_Shdr *symtab_hdr; | |
2583 | unsigned char esym[sizeof (Elf64_External_Sym)]; | |
2584 | Elf_External_Sym_Shndx eshndx; | |
ec338859 | 2585 | |
a5d1b3b5 AM |
2586 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2587 | if (bfd_elf_get_elf_syms (abfd, symtab_hdr, 1, r_symndx, | |
87d72d41 | 2588 | &cache->sym[ent], esym, &eshndx) == NULL) |
a5d1b3b5 | 2589 | return NULL; |
9ad5cbcf | 2590 | |
a5d1b3b5 AM |
2591 | if (cache->abfd != abfd) |
2592 | { | |
2593 | memset (cache->indx, -1, sizeof (cache->indx)); | |
2594 | cache->abfd = abfd; | |
2595 | } | |
2596 | cache->indx[ent] = r_symndx; | |
ec338859 | 2597 | } |
a5d1b3b5 | 2598 | |
87d72d41 | 2599 | return &cache->sym[ent]; |
ec338859 AM |
2600 | } |
2601 | ||
252b5132 RH |
2602 | /* Given an ELF section number, retrieve the corresponding BFD |
2603 | section. */ | |
2604 | ||
2605 | asection * | |
91d6fa6a | 2606 | bfd_section_from_elf_index (bfd *abfd, unsigned int sec_index) |
252b5132 | 2607 | { |
91d6fa6a | 2608 | if (sec_index >= elf_numsections (abfd)) |
252b5132 | 2609 | return NULL; |
91d6fa6a | 2610 | return elf_elfsections (abfd)[sec_index]->bfd_section; |
252b5132 RH |
2611 | } |
2612 | ||
b35d266b | 2613 | static const struct bfd_elf_special_section special_sections_b[] = |
2f89ff8d | 2614 | { |
0112cd26 | 2615 | { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2616 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2617 | }; |
2618 | ||
b35d266b | 2619 | static const struct bfd_elf_special_section special_sections_c[] = |
7f4d3958 | 2620 | { |
0112cd26 | 2621 | { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2622 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2623 | }; |
2624 | ||
b35d266b | 2625 | static const struct bfd_elf_special_section special_sections_d[] = |
7f4d3958 | 2626 | { |
07d6d2b8 AM |
2627 | { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2628 | { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
a9a72a65 DE |
2629 | /* There are more DWARF sections than these, but they needn't be added here |
2630 | unless you have to cope with broken compilers that don't emit section | |
2631 | attributes or you want to help the user writing assembler. */ | |
07d6d2b8 AM |
2632 | { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 }, |
2633 | { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 }, | |
2634 | { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 }, | |
2635 | { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 }, | |
0112cd26 | 2636 | { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2637 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC }, |
2638 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC }, | |
2639 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC }, | |
2640 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2641 | }; |
2642 | ||
b35d266b | 2643 | static const struct bfd_elf_special_section special_sections_f[] = |
7f4d3958 | 2644 | { |
07d6d2b8 | 2645 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2646 | { STRING_COMMA_LEN (".fini_array"), -2, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 | 2647 | { NULL, 0 , 0, 0, 0 } |
7f4d3958 L |
2648 | }; |
2649 | ||
b35d266b | 2650 | static const struct bfd_elf_special_section special_sections_g[] = |
7f4d3958 | 2651 | { |
0112cd26 | 2652 | { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2653 | { STRING_COMMA_LEN (".gnu.lto_"), -1, SHT_PROGBITS, SHF_EXCLUDE }, |
2654 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2655 | { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 }, | |
0112cd26 NC |
2656 | { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 }, |
2657 | { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 }, | |
07d6d2b8 AM |
2658 | { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC }, |
2659 | { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC }, | |
2660 | { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC }, | |
2661 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2662 | }; |
2663 | ||
b35d266b | 2664 | static const struct bfd_elf_special_section special_sections_h[] = |
7f4d3958 | 2665 | { |
07d6d2b8 AM |
2666 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC }, |
2667 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2668 | }; |
2669 | ||
b35d266b | 2670 | static const struct bfd_elf_special_section special_sections_i[] = |
7f4d3958 | 2671 | { |
07d6d2b8 | 2672 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
6f9dbcd4 | 2673 | { STRING_COMMA_LEN (".init_array"), -2, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2674 | { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 }, |
2675 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2676 | }; |
2677 | ||
b35d266b | 2678 | static const struct bfd_elf_special_section special_sections_l[] = |
7f4d3958 | 2679 | { |
0112cd26 | 2680 | { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 | 2681 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2682 | }; |
2683 | ||
b35d266b | 2684 | static const struct bfd_elf_special_section special_sections_n[] = |
7f4d3958 | 2685 | { |
0112cd26 | 2686 | { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 }, |
07d6d2b8 AM |
2687 | { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 }, |
2688 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2689 | }; |
2690 | ||
b35d266b | 2691 | static const struct bfd_elf_special_section special_sections_p[] = |
7f4d3958 | 2692 | { |
6f9dbcd4 | 2693 | { STRING_COMMA_LEN (".preinit_array"), -2, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE }, |
07d6d2b8 AM |
2694 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2695 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2696 | }; |
2697 | ||
b35d266b | 2698 | static const struct bfd_elf_special_section special_sections_r[] = |
7f4d3958 | 2699 | { |
0112cd26 NC |
2700 | { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC }, |
2701 | { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
07d6d2b8 AM |
2702 | { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 }, |
2703 | { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 }, | |
2704 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2705 | }; |
2706 | ||
b35d266b | 2707 | static const struct bfd_elf_special_section special_sections_s[] = |
7f4d3958 | 2708 | { |
0112cd26 NC |
2709 | { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 }, |
2710 | { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 }, | |
2711 | { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 }, | |
60ff4dc4 HPN |
2712 | /* See struct bfd_elf_special_section declaration for the semantics of |
2713 | this special case where .prefix_length != strlen (.prefix). */ | |
2714 | { ".stabstr", 5, 3, SHT_STRTAB, 0 }, | |
07d6d2b8 | 2715 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
2716 | }; |
2717 | ||
b35d266b | 2718 | static const struct bfd_elf_special_section special_sections_t[] = |
7f4d3958 | 2719 | { |
07d6d2b8 AM |
2720 | { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2721 | { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, | |
0112cd26 | 2722 | { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS }, |
07d6d2b8 | 2723 | { NULL, 0, 0, 0, 0 } |
7f4d3958 L |
2724 | }; |
2725 | ||
1b315056 CS |
2726 | static const struct bfd_elf_special_section special_sections_z[] = |
2727 | { | |
07d6d2b8 AM |
2728 | { STRING_COMMA_LEN (".zdebug_line"), 0, SHT_PROGBITS, 0 }, |
2729 | { STRING_COMMA_LEN (".zdebug_info"), 0, SHT_PROGBITS, 0 }, | |
1b315056 CS |
2730 | { STRING_COMMA_LEN (".zdebug_abbrev"), 0, SHT_PROGBITS, 0 }, |
2731 | { STRING_COMMA_LEN (".zdebug_aranges"), 0, SHT_PROGBITS, 0 }, | |
07d6d2b8 | 2732 | { NULL, 0, 0, 0, 0 } |
1b315056 CS |
2733 | }; |
2734 | ||
e4c93b56 | 2735 | static const struct bfd_elf_special_section * const special_sections[] = |
7f4d3958 | 2736 | { |
7f4d3958 | 2737 | special_sections_b, /* 'b' */ |
98ece1b3 | 2738 | special_sections_c, /* 'c' */ |
7f4d3958 L |
2739 | special_sections_d, /* 'd' */ |
2740 | NULL, /* 'e' */ | |
2741 | special_sections_f, /* 'f' */ | |
2742 | special_sections_g, /* 'g' */ | |
2743 | special_sections_h, /* 'h' */ | |
2744 | special_sections_i, /* 'i' */ | |
2745 | NULL, /* 'j' */ | |
2746 | NULL, /* 'k' */ | |
2747 | special_sections_l, /* 'l' */ | |
2748 | NULL, /* 'm' */ | |
2749 | special_sections_n, /* 'n' */ | |
2750 | NULL, /* 'o' */ | |
2751 | special_sections_p, /* 'p' */ | |
2752 | NULL, /* 'q' */ | |
2753 | special_sections_r, /* 'r' */ | |
2754 | special_sections_s, /* 's' */ | |
2755 | special_sections_t, /* 't' */ | |
1b315056 CS |
2756 | NULL, /* 'u' */ |
2757 | NULL, /* 'v' */ | |
2758 | NULL, /* 'w' */ | |
2759 | NULL, /* 'x' */ | |
2760 | NULL, /* 'y' */ | |
2761 | special_sections_z /* 'z' */ | |
7f4d3958 L |
2762 | }; |
2763 | ||
551b43fd AM |
2764 | const struct bfd_elf_special_section * |
2765 | _bfd_elf_get_special_section (const char *name, | |
2766 | const struct bfd_elf_special_section *spec, | |
2767 | unsigned int rela) | |
2f89ff8d L |
2768 | { |
2769 | int i; | |
7f4d3958 | 2770 | int len; |
7f4d3958 | 2771 | |
551b43fd | 2772 | len = strlen (name); |
7f4d3958 | 2773 | |
551b43fd | 2774 | for (i = 0; spec[i].prefix != NULL; i++) |
7dcb9820 AM |
2775 | { |
2776 | int suffix_len; | |
551b43fd | 2777 | int prefix_len = spec[i].prefix_length; |
7dcb9820 AM |
2778 | |
2779 | if (len < prefix_len) | |
2780 | continue; | |
551b43fd | 2781 | if (memcmp (name, spec[i].prefix, prefix_len) != 0) |
7dcb9820 AM |
2782 | continue; |
2783 | ||
551b43fd | 2784 | suffix_len = spec[i].suffix_length; |
7dcb9820 AM |
2785 | if (suffix_len <= 0) |
2786 | { | |
2787 | if (name[prefix_len] != 0) | |
2788 | { | |
2789 | if (suffix_len == 0) | |
2790 | continue; | |
2791 | if (name[prefix_len] != '.' | |
2792 | && (suffix_len == -2 | |
551b43fd | 2793 | || (rela && spec[i].type == SHT_REL))) |
7dcb9820 AM |
2794 | continue; |
2795 | } | |
2796 | } | |
2797 | else | |
2798 | { | |
2799 | if (len < prefix_len + suffix_len) | |
2800 | continue; | |
2801 | if (memcmp (name + len - suffix_len, | |
551b43fd | 2802 | spec[i].prefix + prefix_len, |
7dcb9820 AM |
2803 | suffix_len) != 0) |
2804 | continue; | |
2805 | } | |
551b43fd | 2806 | return &spec[i]; |
7dcb9820 | 2807 | } |
2f89ff8d L |
2808 | |
2809 | return NULL; | |
2810 | } | |
2811 | ||
7dcb9820 | 2812 | const struct bfd_elf_special_section * |
29ef7005 | 2813 | _bfd_elf_get_sec_type_attr (bfd *abfd, asection *sec) |
2f89ff8d | 2814 | { |
551b43fd AM |
2815 | int i; |
2816 | const struct bfd_elf_special_section *spec; | |
29ef7005 | 2817 | const struct elf_backend_data *bed; |
2f89ff8d L |
2818 | |
2819 | /* See if this is one of the special sections. */ | |
551b43fd AM |
2820 | if (sec->name == NULL) |
2821 | return NULL; | |
2f89ff8d | 2822 | |
29ef7005 L |
2823 | bed = get_elf_backend_data (abfd); |
2824 | spec = bed->special_sections; | |
2825 | if (spec) | |
2826 | { | |
2827 | spec = _bfd_elf_get_special_section (sec->name, | |
2828 | bed->special_sections, | |
2829 | sec->use_rela_p); | |
2830 | if (spec != NULL) | |
2831 | return spec; | |
2832 | } | |
2833 | ||
551b43fd AM |
2834 | if (sec->name[0] != '.') |
2835 | return NULL; | |
2f89ff8d | 2836 | |
551b43fd | 2837 | i = sec->name[1] - 'b'; |
1b315056 | 2838 | if (i < 0 || i > 'z' - 'b') |
551b43fd AM |
2839 | return NULL; |
2840 | ||
2841 | spec = special_sections[i]; | |
2f89ff8d | 2842 | |
551b43fd AM |
2843 | if (spec == NULL) |
2844 | return NULL; | |
2845 | ||
2846 | return _bfd_elf_get_special_section (sec->name, spec, sec->use_rela_p); | |
2f89ff8d L |
2847 | } |
2848 | ||
b34976b6 | 2849 | bfd_boolean |
217aa764 | 2850 | _bfd_elf_new_section_hook (bfd *abfd, asection *sec) |
252b5132 RH |
2851 | { |
2852 | struct bfd_elf_section_data *sdata; | |
551b43fd | 2853 | const struct elf_backend_data *bed; |
7dcb9820 | 2854 | const struct bfd_elf_special_section *ssect; |
252b5132 | 2855 | |
f0abc2a1 AM |
2856 | sdata = (struct bfd_elf_section_data *) sec->used_by_bfd; |
2857 | if (sdata == NULL) | |
2858 | { | |
a50b1753 | 2859 | sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, |
07d6d2b8 | 2860 | sizeof (*sdata)); |
f0abc2a1 AM |
2861 | if (sdata == NULL) |
2862 | return FALSE; | |
217aa764 | 2863 | sec->used_by_bfd = sdata; |
f0abc2a1 | 2864 | } |
bf572ba0 | 2865 | |
551b43fd AM |
2866 | /* Indicate whether or not this section should use RELA relocations. */ |
2867 | bed = get_elf_backend_data (abfd); | |
2868 | sec->use_rela_p = bed->default_use_rela_p; | |
2869 | ||
e843e0f8 L |
2870 | /* When we read a file, we don't need to set ELF section type and |
2871 | flags. They will be overridden in _bfd_elf_make_section_from_shdr | |
2872 | anyway. We will set ELF section type and flags for all linker | |
2873 | created sections. If user specifies BFD section flags, we will | |
2874 | set ELF section type and flags based on BFD section flags in | |
02ecc8e9 L |
2875 | elf_fake_sections. Special handling for .init_array/.fini_array |
2876 | output sections since they may contain .ctors/.dtors input | |
2877 | sections. We don't want _bfd_elf_init_private_section_data to | |
2878 | copy ELF section type from .ctors/.dtors input sections. */ | |
2879 | if (abfd->direction != read_direction | |
3496cb2a | 2880 | || (sec->flags & SEC_LINKER_CREATED) != 0) |
2f89ff8d | 2881 | { |
551b43fd | 2882 | ssect = (*bed->get_sec_type_attr) (abfd, sec); |
02ecc8e9 L |
2883 | if (ssect != NULL |
2884 | && (!sec->flags | |
2885 | || (sec->flags & SEC_LINKER_CREATED) != 0 | |
2886 | || ssect->type == SHT_INIT_ARRAY | |
2887 | || ssect->type == SHT_FINI_ARRAY)) | |
a31501e9 L |
2888 | { |
2889 | elf_section_type (sec) = ssect->type; | |
2890 | elf_section_flags (sec) = ssect->attr; | |
2891 | } | |
2f89ff8d L |
2892 | } |
2893 | ||
f592407e | 2894 | return _bfd_generic_new_section_hook (abfd, sec); |
252b5132 RH |
2895 | } |
2896 | ||
2897 | /* Create a new bfd section from an ELF program header. | |
2898 | ||
2899 | Since program segments have no names, we generate a synthetic name | |
2900 | of the form segment<NUM>, where NUM is generally the index in the | |
2901 | program header table. For segments that are split (see below) we | |
2902 | generate the names segment<NUM>a and segment<NUM>b. | |
2903 | ||
2904 | Note that some program segments may have a file size that is different than | |
2905 | (less than) the memory size. All this means is that at execution the | |
2906 | system must allocate the amount of memory specified by the memory size, | |
2907 | but only initialize it with the first "file size" bytes read from the | |
2908 | file. This would occur for example, with program segments consisting | |
2909 | of combined data+bss. | |
2910 | ||
2911 | To handle the above situation, this routine generates TWO bfd sections | |
2912 | for the single program segment. The first has the length specified by | |
2913 | the file size of the segment, and the second has the length specified | |
2914 | by the difference between the two sizes. In effect, the segment is split | |
d5191d0c | 2915 | into its initialized and uninitialized parts. |
252b5132 RH |
2916 | |
2917 | */ | |
2918 | ||
b34976b6 | 2919 | bfd_boolean |
217aa764 AM |
2920 | _bfd_elf_make_section_from_phdr (bfd *abfd, |
2921 | Elf_Internal_Phdr *hdr, | |
91d6fa6a | 2922 | int hdr_index, |
a50b1753 | 2923 | const char *type_name) |
252b5132 RH |
2924 | { |
2925 | asection *newsect; | |
2926 | char *name; | |
2927 | char namebuf[64]; | |
d4c88bbb | 2928 | size_t len; |
252b5132 RH |
2929 | int split; |
2930 | ||
2931 | split = ((hdr->p_memsz > 0) | |
2932 | && (hdr->p_filesz > 0) | |
2933 | && (hdr->p_memsz > hdr->p_filesz)); | |
d5191d0c AM |
2934 | |
2935 | if (hdr->p_filesz > 0) | |
252b5132 | 2936 | { |
91d6fa6a | 2937 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "a" : ""); |
d5191d0c | 2938 | len = strlen (namebuf) + 1; |
a50b1753 | 2939 | name = (char *) bfd_alloc (abfd, len); |
d5191d0c AM |
2940 | if (!name) |
2941 | return FALSE; | |
2942 | memcpy (name, namebuf, len); | |
2943 | newsect = bfd_make_section (abfd, name); | |
2944 | if (newsect == NULL) | |
2945 | return FALSE; | |
2946 | newsect->vma = hdr->p_vaddr; | |
2947 | newsect->lma = hdr->p_paddr; | |
2948 | newsect->size = hdr->p_filesz; | |
2949 | newsect->filepos = hdr->p_offset; | |
2950 | newsect->flags |= SEC_HAS_CONTENTS; | |
2951 | newsect->alignment_power = bfd_log2 (hdr->p_align); | |
2952 | if (hdr->p_type == PT_LOAD) | |
252b5132 | 2953 | { |
d5191d0c AM |
2954 | newsect->flags |= SEC_ALLOC; |
2955 | newsect->flags |= SEC_LOAD; | |
2956 | if (hdr->p_flags & PF_X) | |
2957 | { | |
2958 | /* FIXME: all we known is that it has execute PERMISSION, | |
2959 | may be data. */ | |
2960 | newsect->flags |= SEC_CODE; | |
2961 | } | |
2962 | } | |
2963 | if (!(hdr->p_flags & PF_W)) | |
2964 | { | |
2965 | newsect->flags |= SEC_READONLY; | |
252b5132 | 2966 | } |
252b5132 RH |
2967 | } |
2968 | ||
d5191d0c | 2969 | if (hdr->p_memsz > hdr->p_filesz) |
252b5132 | 2970 | { |
d5191d0c AM |
2971 | bfd_vma align; |
2972 | ||
91d6fa6a | 2973 | sprintf (namebuf, "%s%d%s", type_name, hdr_index, split ? "b" : ""); |
d4c88bbb | 2974 | len = strlen (namebuf) + 1; |
a50b1753 | 2975 | name = (char *) bfd_alloc (abfd, len); |
252b5132 | 2976 | if (!name) |
b34976b6 | 2977 | return FALSE; |
d4c88bbb | 2978 | memcpy (name, namebuf, len); |
252b5132 RH |
2979 | newsect = bfd_make_section (abfd, name); |
2980 | if (newsect == NULL) | |
b34976b6 | 2981 | return FALSE; |
252b5132 RH |
2982 | newsect->vma = hdr->p_vaddr + hdr->p_filesz; |
2983 | newsect->lma = hdr->p_paddr + hdr->p_filesz; | |
eea6121a | 2984 | newsect->size = hdr->p_memsz - hdr->p_filesz; |
d5191d0c AM |
2985 | newsect->filepos = hdr->p_offset + hdr->p_filesz; |
2986 | align = newsect->vma & -newsect->vma; | |
2987 | if (align == 0 || align > hdr->p_align) | |
2988 | align = hdr->p_align; | |
2989 | newsect->alignment_power = bfd_log2 (align); | |
252b5132 RH |
2990 | if (hdr->p_type == PT_LOAD) |
2991 | { | |
d5191d0c AM |
2992 | /* Hack for gdb. Segments that have not been modified do |
2993 | not have their contents written to a core file, on the | |
2994 | assumption that a debugger can find the contents in the | |
2995 | executable. We flag this case by setting the fake | |
2996 | section size to zero. Note that "real" bss sections will | |
2997 | always have their contents dumped to the core file. */ | |
2998 | if (bfd_get_format (abfd) == bfd_core) | |
2999 | newsect->size = 0; | |
252b5132 RH |
3000 | newsect->flags |= SEC_ALLOC; |
3001 | if (hdr->p_flags & PF_X) | |
3002 | newsect->flags |= SEC_CODE; | |
3003 | } | |
3004 | if (!(hdr->p_flags & PF_W)) | |
3005 | newsect->flags |= SEC_READONLY; | |
3006 | } | |
3007 | ||
b34976b6 | 3008 | return TRUE; |
252b5132 RH |
3009 | } |
3010 | ||
b34976b6 | 3011 | bfd_boolean |
91d6fa6a | 3012 | bfd_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int hdr_index) |
20cfcaae | 3013 | { |
9c5bfbb7 | 3014 | const struct elf_backend_data *bed; |
20cfcaae NC |
3015 | |
3016 | switch (hdr->p_type) | |
3017 | { | |
3018 | case PT_NULL: | |
91d6fa6a | 3019 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "null"); |
20cfcaae NC |
3020 | |
3021 | case PT_LOAD: | |
91d6fa6a | 3022 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "load"); |
20cfcaae NC |
3023 | |
3024 | case PT_DYNAMIC: | |
91d6fa6a | 3025 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "dynamic"); |
20cfcaae NC |
3026 | |
3027 | case PT_INTERP: | |
91d6fa6a | 3028 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "interp"); |
20cfcaae NC |
3029 | |
3030 | case PT_NOTE: | |
91d6fa6a | 3031 | if (! _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "note")) |
b34976b6 | 3032 | return FALSE; |
276da9b3 L |
3033 | if (! elf_read_notes (abfd, hdr->p_offset, hdr->p_filesz, |
3034 | hdr->p_align)) | |
b34976b6 AM |
3035 | return FALSE; |
3036 | return TRUE; | |
20cfcaae NC |
3037 | |
3038 | case PT_SHLIB: | |
91d6fa6a | 3039 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "shlib"); |
20cfcaae NC |
3040 | |
3041 | case PT_PHDR: | |
91d6fa6a | 3042 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "phdr"); |
20cfcaae | 3043 | |
811072d8 | 3044 | case PT_GNU_EH_FRAME: |
91d6fa6a | 3045 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, |
811072d8 RM |
3046 | "eh_frame_hdr"); |
3047 | ||
2b05f1b7 | 3048 | case PT_GNU_STACK: |
91d6fa6a | 3049 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "stack"); |
9ee5e499 | 3050 | |
8c37241b | 3051 | case PT_GNU_RELRO: |
91d6fa6a | 3052 | return _bfd_elf_make_section_from_phdr (abfd, hdr, hdr_index, "relro"); |
8c37241b | 3053 | |
20cfcaae | 3054 | default: |
8c1acd09 | 3055 | /* Check for any processor-specific program segment types. */ |
20cfcaae | 3056 | bed = get_elf_backend_data (abfd); |
91d6fa6a | 3057 | return bed->elf_backend_section_from_phdr (abfd, hdr, hdr_index, "proc"); |
20cfcaae NC |
3058 | } |
3059 | } | |
3060 | ||
d4730f92 BS |
3061 | /* Return the REL_HDR for SEC, assuming there is only a single one, either |
3062 | REL or RELA. */ | |
3063 | ||
3064 | Elf_Internal_Shdr * | |
3065 | _bfd_elf_single_rel_hdr (asection *sec) | |
3066 | { | |
3067 | if (elf_section_data (sec)->rel.hdr) | |
3068 | { | |
3069 | BFD_ASSERT (elf_section_data (sec)->rela.hdr == NULL); | |
3070 | return elf_section_data (sec)->rel.hdr; | |
3071 | } | |
3072 | else | |
3073 | return elf_section_data (sec)->rela.hdr; | |
3074 | } | |
3075 | ||
3e19fb8f L |
3076 | static bfd_boolean |
3077 | _bfd_elf_set_reloc_sh_name (bfd *abfd, | |
3078 | Elf_Internal_Shdr *rel_hdr, | |
3079 | const char *sec_name, | |
3080 | bfd_boolean use_rela_p) | |
3081 | { | |
3082 | char *name = (char *) bfd_alloc (abfd, | |
3083 | sizeof ".rela" + strlen (sec_name)); | |
3084 | if (name == NULL) | |
3085 | return FALSE; | |
3086 | ||
3087 | sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", sec_name); | |
3088 | rel_hdr->sh_name = | |
3089 | (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name, | |
3090 | FALSE); | |
3091 | if (rel_hdr->sh_name == (unsigned int) -1) | |
3092 | return FALSE; | |
3093 | ||
3094 | return TRUE; | |
3095 | } | |
3096 | ||
d4730f92 BS |
3097 | /* Allocate and initialize a section-header for a new reloc section, |
3098 | containing relocations against ASECT. It is stored in RELDATA. If | |
3099 | USE_RELA_P is TRUE, we use RELA relocations; otherwise, we use REL | |
3100 | relocations. */ | |
23bc299b | 3101 | |
5d13b3b3 | 3102 | static bfd_boolean |
217aa764 | 3103 | _bfd_elf_init_reloc_shdr (bfd *abfd, |
d4730f92 | 3104 | struct bfd_elf_section_reloc_data *reldata, |
f6fe1ccd | 3105 | const char *sec_name, |
3e19fb8f L |
3106 | bfd_boolean use_rela_p, |
3107 | bfd_boolean delay_st_name_p) | |
23bc299b | 3108 | { |
d4730f92 | 3109 | Elf_Internal_Shdr *rel_hdr; |
9c5bfbb7 | 3110 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3111 | |
d4730f92 | 3112 | BFD_ASSERT (reldata->hdr == NULL); |
ef53be89 | 3113 | rel_hdr = bfd_zalloc (abfd, sizeof (*rel_hdr)); |
d4730f92 | 3114 | reldata->hdr = rel_hdr; |
23bc299b | 3115 | |
3e19fb8f L |
3116 | if (delay_st_name_p) |
3117 | rel_hdr->sh_name = (unsigned int) -1; | |
3118 | else if (!_bfd_elf_set_reloc_sh_name (abfd, rel_hdr, sec_name, | |
3119 | use_rela_p)) | |
b34976b6 | 3120 | return FALSE; |
23bc299b MM |
3121 | rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL; |
3122 | rel_hdr->sh_entsize = (use_rela_p | |
3123 | ? bed->s->sizeof_rela | |
3124 | : bed->s->sizeof_rel); | |
72de5009 | 3125 | rel_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
28e07a05 | 3126 | rel_hdr->sh_flags = 0; |
23bc299b MM |
3127 | rel_hdr->sh_addr = 0; |
3128 | rel_hdr->sh_size = 0; | |
3129 | rel_hdr->sh_offset = 0; | |
3130 | ||
b34976b6 | 3131 | return TRUE; |
23bc299b MM |
3132 | } |
3133 | ||
94be91de JB |
3134 | /* Return the default section type based on the passed in section flags. */ |
3135 | ||
3136 | int | |
3137 | bfd_elf_get_default_section_type (flagword flags) | |
3138 | { | |
0e41bebb | 3139 | if ((flags & (SEC_ALLOC | SEC_IS_COMMON)) != 0 |
2e76e85a | 3140 | && (flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) |
94be91de JB |
3141 | return SHT_NOBITS; |
3142 | return SHT_PROGBITS; | |
3143 | } | |
3144 | ||
d4730f92 BS |
3145 | struct fake_section_arg |
3146 | { | |
3147 | struct bfd_link_info *link_info; | |
3148 | bfd_boolean failed; | |
3149 | }; | |
3150 | ||
252b5132 RH |
3151 | /* Set up an ELF internal section header for a section. */ |
3152 | ||
252b5132 | 3153 | static void |
d4730f92 | 3154 | elf_fake_sections (bfd *abfd, asection *asect, void *fsarg) |
252b5132 | 3155 | { |
d4730f92 | 3156 | struct fake_section_arg *arg = (struct fake_section_arg *)fsarg; |
9c5bfbb7 | 3157 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 3158 | struct bfd_elf_section_data *esd = elf_section_data (asect); |
252b5132 | 3159 | Elf_Internal_Shdr *this_hdr; |
0414f35b | 3160 | unsigned int sh_type; |
0ce398f1 | 3161 | const char *name = asect->name; |
3e19fb8f | 3162 | bfd_boolean delay_st_name_p = FALSE; |
252b5132 | 3163 | |
d4730f92 | 3164 | if (arg->failed) |
252b5132 RH |
3165 | { |
3166 | /* We already failed; just get out of the bfd_map_over_sections | |
08a40648 | 3167 | loop. */ |
252b5132 RH |
3168 | return; |
3169 | } | |
3170 | ||
d4730f92 | 3171 | this_hdr = &esd->this_hdr; |
252b5132 | 3172 | |
f6fe1ccd | 3173 | if (arg->link_info) |
0ce398f1 | 3174 | { |
f6fe1ccd L |
3175 | /* ld: compress DWARF debug sections with names: .debug_*. */ |
3176 | if ((arg->link_info->compress_debug & COMPRESS_DEBUG) | |
3177 | && (asect->flags & SEC_DEBUGGING) | |
3178 | && name[1] == 'd' | |
3179 | && name[6] == '_') | |
3180 | { | |
3181 | /* Set SEC_ELF_COMPRESS to indicate this section should be | |
3182 | compressed. */ | |
3183 | asect->flags |= SEC_ELF_COMPRESS; | |
0ce398f1 | 3184 | |
dd905818 | 3185 | /* If this section will be compressed, delay adding section |
3e19fb8f L |
3186 | name to section name section after it is compressed in |
3187 | _bfd_elf_assign_file_positions_for_non_load. */ | |
3188 | delay_st_name_p = TRUE; | |
f6fe1ccd L |
3189 | } |
3190 | } | |
3191 | else if ((asect->flags & SEC_ELF_RENAME)) | |
3192 | { | |
3193 | /* objcopy: rename output DWARF debug section. */ | |
3194 | if ((abfd->flags & (BFD_DECOMPRESS | BFD_COMPRESS_GABI))) | |
3195 | { | |
3196 | /* When we decompress or compress with SHF_COMPRESSED, | |
3197 | convert section name from .zdebug_* to .debug_* if | |
3198 | needed. */ | |
3199 | if (name[1] == 'z') | |
3200 | { | |
3201 | char *new_name = convert_zdebug_to_debug (abfd, name); | |
3202 | if (new_name == NULL) | |
3203 | { | |
3204 | arg->failed = TRUE; | |
3205 | return; | |
3206 | } | |
3207 | name = new_name; | |
3208 | } | |
3209 | } | |
3210 | else if (asect->compress_status == COMPRESS_SECTION_DONE) | |
0ce398f1 | 3211 | { |
f6fe1ccd L |
3212 | /* PR binutils/18087: Compression does not always make a |
3213 | section smaller. So only rename the section when | |
3214 | compression has actually taken place. If input section | |
3215 | name is .zdebug_*, we should never compress it again. */ | |
3216 | char *new_name = convert_debug_to_zdebug (abfd, name); | |
0ce398f1 L |
3217 | if (new_name == NULL) |
3218 | { | |
3219 | arg->failed = TRUE; | |
3220 | return; | |
3221 | } | |
f6fe1ccd L |
3222 | BFD_ASSERT (name[1] != 'z'); |
3223 | name = new_name; | |
0ce398f1 L |
3224 | } |
3225 | } | |
3226 | ||
3e19fb8f L |
3227 | if (delay_st_name_p) |
3228 | this_hdr->sh_name = (unsigned int) -1; | |
3229 | else | |
252b5132 | 3230 | { |
3e19fb8f L |
3231 | this_hdr->sh_name |
3232 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
3233 | name, FALSE); | |
3234 | if (this_hdr->sh_name == (unsigned int) -1) | |
3235 | { | |
3236 | arg->failed = TRUE; | |
3237 | return; | |
3238 | } | |
252b5132 RH |
3239 | } |
3240 | ||
a4d8e49b | 3241 | /* Don't clear sh_flags. Assembler may set additional bits. */ |
252b5132 RH |
3242 | |
3243 | if ((asect->flags & SEC_ALLOC) != 0 | |
3244 | || asect->user_set_vma) | |
3245 | this_hdr->sh_addr = asect->vma; | |
3246 | else | |
3247 | this_hdr->sh_addr = 0; | |
3248 | ||
3249 | this_hdr->sh_offset = 0; | |
eea6121a | 3250 | this_hdr->sh_size = asect->size; |
252b5132 | 3251 | this_hdr->sh_link = 0; |
c86934ce NC |
3252 | /* PR 17512: file: 0eb809fe, 8b0535ee. */ |
3253 | if (asect->alignment_power >= (sizeof (bfd_vma) * 8) - 1) | |
3254 | { | |
4eca0228 | 3255 | _bfd_error_handler |
695344c0 | 3256 | /* xgettext:c-format */ |
9793eb77 | 3257 | (_("%pB: error: alignment power %d of section `%pA' is too big"), |
c08bb8dd | 3258 | abfd, asect->alignment_power, asect); |
c86934ce NC |
3259 | arg->failed = TRUE; |
3260 | return; | |
3261 | } | |
72de5009 | 3262 | this_hdr->sh_addralign = (bfd_vma) 1 << asect->alignment_power; |
252b5132 RH |
3263 | /* The sh_entsize and sh_info fields may have been set already by |
3264 | copy_private_section_data. */ | |
3265 | ||
3266 | this_hdr->bfd_section = asect; | |
3267 | this_hdr->contents = NULL; | |
3268 | ||
3cddba1e L |
3269 | /* If the section type is unspecified, we set it based on |
3270 | asect->flags. */ | |
98ece1b3 AM |
3271 | if ((asect->flags & SEC_GROUP) != 0) |
3272 | sh_type = SHT_GROUP; | |
98ece1b3 | 3273 | else |
94be91de | 3274 | sh_type = bfd_elf_get_default_section_type (asect->flags); |
98ece1b3 | 3275 | |
3cddba1e | 3276 | if (this_hdr->sh_type == SHT_NULL) |
98ece1b3 AM |
3277 | this_hdr->sh_type = sh_type; |
3278 | else if (this_hdr->sh_type == SHT_NOBITS | |
3279 | && sh_type == SHT_PROGBITS | |
3280 | && (asect->flags & SEC_ALLOC) != 0) | |
3cddba1e | 3281 | { |
98ece1b3 AM |
3282 | /* Warn if we are changing a NOBITS section to PROGBITS, but |
3283 | allow the link to proceed. This can happen when users link | |
3284 | non-bss input sections to bss output sections, or emit data | |
3285 | to a bss output section via a linker script. */ | |
4eca0228 | 3286 | _bfd_error_handler |
871b3ab2 | 3287 | (_("warning: section `%pA' type changed to PROGBITS"), asect); |
98ece1b3 | 3288 | this_hdr->sh_type = sh_type; |
3cddba1e L |
3289 | } |
3290 | ||
2f89ff8d | 3291 | switch (this_hdr->sh_type) |
252b5132 | 3292 | { |
2f89ff8d | 3293 | default: |
2f89ff8d L |
3294 | break; |
3295 | ||
3296 | case SHT_STRTAB: | |
2f89ff8d L |
3297 | case SHT_NOTE: |
3298 | case SHT_NOBITS: | |
3299 | case SHT_PROGBITS: | |
3300 | break; | |
606851fb AM |
3301 | |
3302 | case SHT_INIT_ARRAY: | |
3303 | case SHT_FINI_ARRAY: | |
3304 | case SHT_PREINIT_ARRAY: | |
3305 | this_hdr->sh_entsize = bed->s->arch_size / 8; | |
3306 | break; | |
2f89ff8d L |
3307 | |
3308 | case SHT_HASH: | |
c7ac6ff8 | 3309 | this_hdr->sh_entsize = bed->s->sizeof_hash_entry; |
2f89ff8d | 3310 | break; |
5de3bf90 | 3311 | |
2f89ff8d | 3312 | case SHT_DYNSYM: |
252b5132 | 3313 | this_hdr->sh_entsize = bed->s->sizeof_sym; |
2f89ff8d L |
3314 | break; |
3315 | ||
3316 | case SHT_DYNAMIC: | |
252b5132 | 3317 | this_hdr->sh_entsize = bed->s->sizeof_dyn; |
2f89ff8d L |
3318 | break; |
3319 | ||
3320 | case SHT_RELA: | |
3321 | if (get_elf_backend_data (abfd)->may_use_rela_p) | |
3322 | this_hdr->sh_entsize = bed->s->sizeof_rela; | |
3323 | break; | |
3324 | ||
3325 | case SHT_REL: | |
3326 | if (get_elf_backend_data (abfd)->may_use_rel_p) | |
3327 | this_hdr->sh_entsize = bed->s->sizeof_rel; | |
3328 | break; | |
3329 | ||
3330 | case SHT_GNU_versym: | |
252b5132 | 3331 | this_hdr->sh_entsize = sizeof (Elf_External_Versym); |
2f89ff8d L |
3332 | break; |
3333 | ||
3334 | case SHT_GNU_verdef: | |
252b5132 RH |
3335 | this_hdr->sh_entsize = 0; |
3336 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3337 | cverdefs. The linker will set cverdefs, but sh_info will be |
3338 | zero. */ | |
252b5132 RH |
3339 | if (this_hdr->sh_info == 0) |
3340 | this_hdr->sh_info = elf_tdata (abfd)->cverdefs; | |
3341 | else | |
3342 | BFD_ASSERT (elf_tdata (abfd)->cverdefs == 0 | |
3343 | || this_hdr->sh_info == elf_tdata (abfd)->cverdefs); | |
2f89ff8d L |
3344 | break; |
3345 | ||
3346 | case SHT_GNU_verneed: | |
252b5132 RH |
3347 | this_hdr->sh_entsize = 0; |
3348 | /* objcopy or strip will copy over sh_info, but may not set | |
08a40648 AM |
3349 | cverrefs. The linker will set cverrefs, but sh_info will be |
3350 | zero. */ | |
252b5132 RH |
3351 | if (this_hdr->sh_info == 0) |
3352 | this_hdr->sh_info = elf_tdata (abfd)->cverrefs; | |
3353 | else | |
3354 | BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0 | |
3355 | || this_hdr->sh_info == elf_tdata (abfd)->cverrefs); | |
2f89ff8d L |
3356 | break; |
3357 | ||
3358 | case SHT_GROUP: | |
1783205a | 3359 | this_hdr->sh_entsize = GRP_ENTRY_SIZE; |
2f89ff8d | 3360 | break; |
fdc90cb4 JJ |
3361 | |
3362 | case SHT_GNU_HASH: | |
3363 | this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4; | |
3364 | break; | |
dbb410c3 | 3365 | } |
252b5132 RH |
3366 | |
3367 | if ((asect->flags & SEC_ALLOC) != 0) | |
3368 | this_hdr->sh_flags |= SHF_ALLOC; | |
3369 | if ((asect->flags & SEC_READONLY) == 0) | |
3370 | this_hdr->sh_flags |= SHF_WRITE; | |
3371 | if ((asect->flags & SEC_CODE) != 0) | |
3372 | this_hdr->sh_flags |= SHF_EXECINSTR; | |
f5fa8ca2 JJ |
3373 | if ((asect->flags & SEC_MERGE) != 0) |
3374 | { | |
3375 | this_hdr->sh_flags |= SHF_MERGE; | |
3376 | this_hdr->sh_entsize = asect->entsize; | |
f5fa8ca2 | 3377 | } |
84865015 NC |
3378 | if ((asect->flags & SEC_STRINGS) != 0) |
3379 | this_hdr->sh_flags |= SHF_STRINGS; | |
1126897b | 3380 | if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL) |
dbb410c3 | 3381 | this_hdr->sh_flags |= SHF_GROUP; |
13ae64f3 | 3382 | if ((asect->flags & SEC_THREAD_LOCAL) != 0) |
704afa60 JJ |
3383 | { |
3384 | this_hdr->sh_flags |= SHF_TLS; | |
3a800eb9 AM |
3385 | if (asect->size == 0 |
3386 | && (asect->flags & SEC_HAS_CONTENTS) == 0) | |
704afa60 | 3387 | { |
3a800eb9 | 3388 | struct bfd_link_order *o = asect->map_tail.link_order; |
b34976b6 | 3389 | |
704afa60 | 3390 | this_hdr->sh_size = 0; |
3a800eb9 AM |
3391 | if (o != NULL) |
3392 | { | |
704afa60 | 3393 | this_hdr->sh_size = o->offset + o->size; |
3a800eb9 AM |
3394 | if (this_hdr->sh_size != 0) |
3395 | this_hdr->sh_type = SHT_NOBITS; | |
3396 | } | |
704afa60 JJ |
3397 | } |
3398 | } | |
18ae9cc1 L |
3399 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
3400 | this_hdr->sh_flags |= SHF_EXCLUDE; | |
252b5132 | 3401 | |
d4730f92 BS |
3402 | /* If the section has relocs, set up a section header for the |
3403 | SHT_REL[A] section. If two relocation sections are required for | |
3404 | this section, it is up to the processor-specific back-end to | |
3405 | create the other. */ | |
3406 | if ((asect->flags & SEC_RELOC) != 0) | |
3407 | { | |
3408 | /* When doing a relocatable link, create both REL and RELA sections if | |
3409 | needed. */ | |
3410 | if (arg->link_info | |
3411 | /* Do the normal setup if we wouldn't create any sections here. */ | |
3412 | && esd->rel.count + esd->rela.count > 0 | |
0e1862bb L |
3413 | && (bfd_link_relocatable (arg->link_info) |
3414 | || arg->link_info->emitrelocations)) | |
d4730f92 BS |
3415 | { |
3416 | if (esd->rel.count && esd->rel.hdr == NULL | |
28e07a05 | 3417 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rel, name, |
db4677b8 | 3418 | FALSE, delay_st_name_p)) |
d4730f92 BS |
3419 | { |
3420 | arg->failed = TRUE; | |
3421 | return; | |
3422 | } | |
3423 | if (esd->rela.count && esd->rela.hdr == NULL | |
28e07a05 | 3424 | && !_bfd_elf_init_reloc_shdr (abfd, &esd->rela, name, |
db4677b8 | 3425 | TRUE, delay_st_name_p)) |
d4730f92 BS |
3426 | { |
3427 | arg->failed = TRUE; | |
3428 | return; | |
3429 | } | |
3430 | } | |
3431 | else if (!_bfd_elf_init_reloc_shdr (abfd, | |
3432 | (asect->use_rela_p | |
3433 | ? &esd->rela : &esd->rel), | |
f6fe1ccd | 3434 | name, |
3e19fb8f L |
3435 | asect->use_rela_p, |
3436 | delay_st_name_p)) | |
db4677b8 | 3437 | { |
d4730f92 | 3438 | arg->failed = TRUE; |
db4677b8 AM |
3439 | return; |
3440 | } | |
d4730f92 BS |
3441 | } |
3442 | ||
252b5132 | 3443 | /* Check for processor-specific section types. */ |
0414f35b | 3444 | sh_type = this_hdr->sh_type; |
e1fddb6b AO |
3445 | if (bed->elf_backend_fake_sections |
3446 | && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect)) | |
db4677b8 AM |
3447 | { |
3448 | arg->failed = TRUE; | |
3449 | return; | |
3450 | } | |
252b5132 | 3451 | |
42bb2e33 | 3452 | if (sh_type == SHT_NOBITS && asect->size != 0) |
0414f35b AM |
3453 | { |
3454 | /* Don't change the header type from NOBITS if we are being | |
42bb2e33 | 3455 | called for objcopy --only-keep-debug. */ |
0414f35b AM |
3456 | this_hdr->sh_type = sh_type; |
3457 | } | |
252b5132 RH |
3458 | } |
3459 | ||
bcacc0f5 AM |
3460 | /* Fill in the contents of a SHT_GROUP section. Called from |
3461 | _bfd_elf_compute_section_file_positions for gas, objcopy, and | |
3462 | when ELF targets use the generic linker, ld. Called for ld -r | |
3463 | from bfd_elf_final_link. */ | |
dbb410c3 | 3464 | |
1126897b | 3465 | void |
217aa764 | 3466 | bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg) |
dbb410c3 | 3467 | { |
a50b1753 | 3468 | bfd_boolean *failedptr = (bfd_boolean *) failedptrarg; |
9dce4196 | 3469 | asection *elt, *first; |
dbb410c3 | 3470 | unsigned char *loc; |
b34976b6 | 3471 | bfd_boolean gas; |
dbb410c3 | 3472 | |
7e4111ad L |
3473 | /* Ignore linker created group section. See elfNN_ia64_object_p in |
3474 | elfxx-ia64.c. */ | |
3475 | if (((sec->flags & (SEC_GROUP | SEC_LINKER_CREATED)) != SEC_GROUP) | |
dbb410c3 AM |
3476 | || *failedptr) |
3477 | return; | |
3478 | ||
bcacc0f5 AM |
3479 | if (elf_section_data (sec)->this_hdr.sh_info == 0) |
3480 | { | |
3481 | unsigned long symindx = 0; | |
3482 | ||
3483 | /* elf_group_id will have been set up by objcopy and the | |
3484 | generic linker. */ | |
3485 | if (elf_group_id (sec) != NULL) | |
3486 | symindx = elf_group_id (sec)->udata.i; | |
1126897b | 3487 | |
bcacc0f5 AM |
3488 | if (symindx == 0) |
3489 | { | |
3490 | /* If called from the assembler, swap_out_syms will have set up | |
3491 | elf_section_syms. */ | |
3492 | BFD_ASSERT (elf_section_syms (abfd) != NULL); | |
3493 | symindx = elf_section_syms (abfd)[sec->index]->udata.i; | |
3494 | } | |
3495 | elf_section_data (sec)->this_hdr.sh_info = symindx; | |
3496 | } | |
3497 | else if (elf_section_data (sec)->this_hdr.sh_info == (unsigned int) -2) | |
1126897b | 3498 | { |
bcacc0f5 AM |
3499 | /* The ELF backend linker sets sh_info to -2 when the group |
3500 | signature symbol is global, and thus the index can't be | |
3501 | set until all local symbols are output. */ | |
53720c49 AM |
3502 | asection *igroup; |
3503 | struct bfd_elf_section_data *sec_data; | |
3504 | unsigned long symndx; | |
3505 | unsigned long extsymoff; | |
bcacc0f5 AM |
3506 | struct elf_link_hash_entry *h; |
3507 | ||
53720c49 AM |
3508 | /* The point of this little dance to the first SHF_GROUP section |
3509 | then back to the SHT_GROUP section is that this gets us to | |
3510 | the SHT_GROUP in the input object. */ | |
3511 | igroup = elf_sec_group (elf_next_in_group (sec)); | |
3512 | sec_data = elf_section_data (igroup); | |
3513 | symndx = sec_data->this_hdr.sh_info; | |
3514 | extsymoff = 0; | |
bcacc0f5 AM |
3515 | if (!elf_bad_symtab (igroup->owner)) |
3516 | { | |
3517 | Elf_Internal_Shdr *symtab_hdr; | |
3518 | ||
3519 | symtab_hdr = &elf_tdata (igroup->owner)->symtab_hdr; | |
3520 | extsymoff = symtab_hdr->sh_info; | |
3521 | } | |
3522 | h = elf_sym_hashes (igroup->owner)[symndx - extsymoff]; | |
3523 | while (h->root.type == bfd_link_hash_indirect | |
3524 | || h->root.type == bfd_link_hash_warning) | |
3525 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3526 | ||
3527 | elf_section_data (sec)->this_hdr.sh_info = h->indx; | |
1126897b | 3528 | } |
dbb410c3 | 3529 | |
1126897b | 3530 | /* The contents won't be allocated for "ld -r" or objcopy. */ |
b34976b6 | 3531 | gas = TRUE; |
dbb410c3 AM |
3532 | if (sec->contents == NULL) |
3533 | { | |
b34976b6 | 3534 | gas = FALSE; |
a50b1753 | 3535 | sec->contents = (unsigned char *) bfd_alloc (abfd, sec->size); |
9dce4196 AM |
3536 | |
3537 | /* Arrange for the section to be written out. */ | |
3538 | elf_section_data (sec)->this_hdr.contents = sec->contents; | |
dbb410c3 AM |
3539 | if (sec->contents == NULL) |
3540 | { | |
b34976b6 | 3541 | *failedptr = TRUE; |
dbb410c3 AM |
3542 | return; |
3543 | } | |
3544 | } | |
3545 | ||
eea6121a | 3546 | loc = sec->contents + sec->size; |
dbb410c3 | 3547 | |
9dce4196 AM |
3548 | /* Get the pointer to the first section in the group that gas |
3549 | squirreled away here. objcopy arranges for this to be set to the | |
3550 | start of the input section group. */ | |
3551 | first = elt = elf_next_in_group (sec); | |
dbb410c3 AM |
3552 | |
3553 | /* First element is a flag word. Rest of section is elf section | |
3554 | indices for all the sections of the group. Write them backwards | |
3555 | just to keep the group in the same order as given in .section | |
3556 | directives, not that it matters. */ | |
3557 | while (elt != NULL) | |
3558 | { | |
9dce4196 | 3559 | asection *s; |
9dce4196 | 3560 | |
9dce4196 | 3561 | s = elt; |
415f38a6 AM |
3562 | if (!gas) |
3563 | s = s->output_section; | |
3564 | if (s != NULL | |
3565 | && !bfd_is_abs_section (s)) | |
01e1a5bc | 3566 | { |
db4677b8 | 3567 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); |
28e07a05 AM |
3568 | struct bfd_elf_section_data *input_elf_sec = elf_section_data (elt); |
3569 | ||
3570 | if (elf_sec->rel.hdr != NULL | |
3571 | && (gas | |
3572 | || (input_elf_sec->rel.hdr != NULL | |
3573 | && input_elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3574 | { |
28e07a05 | 3575 | elf_sec->rel.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3576 | loc -= 4; |
3577 | H_PUT_32 (abfd, elf_sec->rel.idx, loc); | |
3578 | } | |
28e07a05 AM |
3579 | if (elf_sec->rela.hdr != NULL |
3580 | && (gas | |
3581 | || (input_elf_sec->rela.hdr != NULL | |
3582 | && input_elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0)) | |
db4677b8 | 3583 | { |
28e07a05 | 3584 | elf_sec->rela.hdr->sh_flags |= SHF_GROUP; |
db4677b8 AM |
3585 | loc -= 4; |
3586 | H_PUT_32 (abfd, elf_sec->rela.idx, loc); | |
3587 | } | |
01e1a5bc | 3588 | loc -= 4; |
db4677b8 | 3589 | H_PUT_32 (abfd, elf_sec->this_idx, loc); |
01e1a5bc | 3590 | } |
945906ff | 3591 | elt = elf_next_in_group (elt); |
9dce4196 AM |
3592 | if (elt == first) |
3593 | break; | |
dbb410c3 AM |
3594 | } |
3595 | ||
7bdf4127 AB |
3596 | loc -= 4; |
3597 | BFD_ASSERT (loc == sec->contents); | |
dbb410c3 | 3598 | |
9dce4196 | 3599 | H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc); |
dbb410c3 AM |
3600 | } |
3601 | ||
bce964aa AM |
3602 | /* Given NAME, the name of a relocation section stripped of its |
3603 | .rel/.rela prefix, return the section in ABFD to which the | |
3604 | relocations apply. */ | |
bd53a53a L |
3605 | |
3606 | asection * | |
bce964aa AM |
3607 | _bfd_elf_plt_get_reloc_section (bfd *abfd, const char *name) |
3608 | { | |
3609 | /* If a target needs .got.plt section, relocations in rela.plt/rel.plt | |
3610 | section likely apply to .got.plt or .got section. */ | |
3611 | if (get_elf_backend_data (abfd)->want_got_plt | |
3612 | && strcmp (name, ".plt") == 0) | |
3613 | { | |
3614 | asection *sec; | |
3615 | ||
3616 | name = ".got.plt"; | |
3617 | sec = bfd_get_section_by_name (abfd, name); | |
3618 | if (sec != NULL) | |
3619 | return sec; | |
3620 | name = ".got"; | |
3621 | } | |
3622 | ||
3623 | return bfd_get_section_by_name (abfd, name); | |
3624 | } | |
3625 | ||
3626 | /* Return the section to which RELOC_SEC applies. */ | |
3627 | ||
3628 | static asection * | |
3629 | elf_get_reloc_section (asection *reloc_sec) | |
bd53a53a L |
3630 | { |
3631 | const char *name; | |
3632 | unsigned int type; | |
3633 | bfd *abfd; | |
bce964aa | 3634 | const struct elf_backend_data *bed; |
bd53a53a L |
3635 | |
3636 | type = elf_section_data (reloc_sec)->this_hdr.sh_type; | |
3637 | if (type != SHT_REL && type != SHT_RELA) | |
3638 | return NULL; | |
3639 | ||
3640 | /* We look up the section the relocs apply to by name. */ | |
3641 | name = reloc_sec->name; | |
bce964aa AM |
3642 | if (strncmp (name, ".rel", 4) != 0) |
3643 | return NULL; | |
3644 | name += 4; | |
3645 | if (type == SHT_RELA && *name++ != 'a') | |
3646 | return NULL; | |
bd53a53a | 3647 | |
bd53a53a | 3648 | abfd = reloc_sec->owner; |
bce964aa AM |
3649 | bed = get_elf_backend_data (abfd); |
3650 | return bed->get_reloc_section (abfd, name); | |
bd53a53a L |
3651 | } |
3652 | ||
252b5132 RH |
3653 | /* Assign all ELF section numbers. The dummy first section is handled here |
3654 | too. The link/info pointers for the standard section types are filled | |
3655 | in here too, while we're at it. */ | |
3656 | ||
b34976b6 | 3657 | static bfd_boolean |
da9f89d4 | 3658 | assign_section_numbers (bfd *abfd, struct bfd_link_info *link_info) |
252b5132 RH |
3659 | { |
3660 | struct elf_obj_tdata *t = elf_tdata (abfd); | |
3661 | asection *sec; | |
3e19fb8f | 3662 | unsigned int section_number; |
252b5132 | 3663 | Elf_Internal_Shdr **i_shdrp; |
47cc2cf5 | 3664 | struct bfd_elf_section_data *d; |
3516e984 | 3665 | bfd_boolean need_symtab; |
252b5132 RH |
3666 | |
3667 | section_number = 1; | |
3668 | ||
2b0f7ef9 JJ |
3669 | _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd)); |
3670 | ||
da9f89d4 | 3671 | /* SHT_GROUP sections are in relocatable files only. */ |
7bdf4127 | 3672 | if (link_info == NULL || !link_info->resolve_section_groups) |
252b5132 | 3673 | { |
ef53be89 | 3674 | size_t reloc_count = 0; |
14f2c699 | 3675 | |
da9f89d4 | 3676 | /* Put SHT_GROUP sections first. */ |
04dd1667 | 3677 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
47cc2cf5 | 3678 | { |
5daa8fe7 | 3679 | d = elf_section_data (sec); |
da9f89d4 L |
3680 | |
3681 | if (d->this_hdr.sh_type == SHT_GROUP) | |
08a40648 | 3682 | { |
5daa8fe7 | 3683 | if (sec->flags & SEC_LINKER_CREATED) |
da9f89d4 L |
3684 | { |
3685 | /* Remove the linker created SHT_GROUP sections. */ | |
5daa8fe7 | 3686 | bfd_section_list_remove (abfd, sec); |
da9f89d4 | 3687 | abfd->section_count--; |
da9f89d4 | 3688 | } |
08a40648 | 3689 | else |
4fbb74a6 | 3690 | d->this_idx = section_number++; |
da9f89d4 | 3691 | } |
14f2c699 L |
3692 | |
3693 | /* Count relocations. */ | |
3694 | reloc_count += sec->reloc_count; | |
47cc2cf5 | 3695 | } |
14f2c699 L |
3696 | |
3697 | /* Clear HAS_RELOC if there are no relocations. */ | |
3698 | if (reloc_count == 0) | |
3699 | abfd->flags &= ~HAS_RELOC; | |
47cc2cf5 PB |
3700 | } |
3701 | ||
3702 | for (sec = abfd->sections; sec; sec = sec->next) | |
3703 | { | |
3704 | d = elf_section_data (sec); | |
3705 | ||
3706 | if (d->this_hdr.sh_type != SHT_GROUP) | |
4fbb74a6 | 3707 | d->this_idx = section_number++; |
3e19fb8f L |
3708 | if (d->this_hdr.sh_name != (unsigned int) -1) |
3709 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name); | |
d4730f92 | 3710 | if (d->rel.hdr) |
2b0f7ef9 | 3711 | { |
d4730f92 | 3712 | d->rel.idx = section_number++; |
3e19fb8f L |
3713 | if (d->rel.hdr->sh_name != (unsigned int) -1) |
3714 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel.hdr->sh_name); | |
2b0f7ef9 | 3715 | } |
d4730f92 BS |
3716 | else |
3717 | d->rel.idx = 0; | |
23bc299b | 3718 | |
d4730f92 | 3719 | if (d->rela.hdr) |
2b0f7ef9 | 3720 | { |
d4730f92 | 3721 | d->rela.idx = section_number++; |
3e19fb8f L |
3722 | if (d->rela.hdr->sh_name != (unsigned int) -1) |
3723 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rela.hdr->sh_name); | |
2b0f7ef9 | 3724 | } |
23bc299b | 3725 | else |
d4730f92 | 3726 | d->rela.idx = 0; |
252b5132 RH |
3727 | } |
3728 | ||
3516e984 L |
3729 | need_symtab = (bfd_get_symcount (abfd) > 0 |
3730 | || (link_info == NULL | |
3731 | && ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
3732 | == HAS_RELOC))); | |
3733 | if (need_symtab) | |
252b5132 | 3734 | { |
12bd6957 | 3735 | elf_onesymtab (abfd) = section_number++; |
2b0f7ef9 | 3736 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name); |
4fbb74a6 | 3737 | if (section_number > ((SHN_LORESERVE - 2) & 0xFFFF)) |
9ad5cbcf | 3738 | { |
7a6e0d89 | 3739 | elf_section_list *entry; |
6a40cf0c NC |
3740 | |
3741 | BFD_ASSERT (elf_symtab_shndx_list (abfd) == NULL); | |
3742 | ||
7a6e0d89 | 3743 | entry = bfd_zalloc (abfd, sizeof (*entry)); |
6a40cf0c NC |
3744 | entry->ndx = section_number++; |
3745 | elf_symtab_shndx_list (abfd) = entry; | |
3746 | entry->hdr.sh_name | |
9ad5cbcf | 3747 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), |
b34976b6 | 3748 | ".symtab_shndx", FALSE); |
6a40cf0c | 3749 | if (entry->hdr.sh_name == (unsigned int) -1) |
b34976b6 | 3750 | return FALSE; |
9ad5cbcf | 3751 | } |
12bd6957 | 3752 | elf_strtab_sec (abfd) = section_number++; |
2b0f7ef9 | 3753 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name); |
252b5132 RH |
3754 | } |
3755 | ||
dd905818 NC |
3756 | elf_shstrtab_sec (abfd) = section_number++; |
3757 | _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name); | |
3758 | elf_elfheader (abfd)->e_shstrndx = elf_shstrtab_sec (abfd); | |
3759 | ||
1c52a645 L |
3760 | if (section_number >= SHN_LORESERVE) |
3761 | { | |
695344c0 | 3762 | /* xgettext:c-format */ |
871b3ab2 | 3763 | _bfd_error_handler (_("%pB: too many sections: %u"), |
1c52a645 L |
3764 | abfd, section_number); |
3765 | return FALSE; | |
3766 | } | |
3767 | ||
9ad5cbcf | 3768 | elf_numsections (abfd) = section_number; |
252b5132 RH |
3769 | elf_elfheader (abfd)->e_shnum = section_number; |
3770 | ||
3771 | /* Set up the list of section header pointers, in agreement with the | |
3772 | indices. */ | |
a50b1753 | 3773 | i_shdrp = (Elf_Internal_Shdr **) bfd_zalloc2 (abfd, section_number, |
07d6d2b8 | 3774 | sizeof (Elf_Internal_Shdr *)); |
252b5132 | 3775 | if (i_shdrp == NULL) |
b34976b6 | 3776 | return FALSE; |
252b5132 | 3777 | |
a50b1753 | 3778 | i_shdrp[0] = (Elf_Internal_Shdr *) bfd_zalloc (abfd, |
07d6d2b8 | 3779 | sizeof (Elf_Internal_Shdr)); |
252b5132 RH |
3780 | if (i_shdrp[0] == NULL) |
3781 | { | |
3782 | bfd_release (abfd, i_shdrp); | |
b34976b6 | 3783 | return FALSE; |
252b5132 | 3784 | } |
252b5132 RH |
3785 | |
3786 | elf_elfsections (abfd) = i_shdrp; | |
3787 | ||
12bd6957 | 3788 | i_shdrp[elf_shstrtab_sec (abfd)] = &t->shstrtab_hdr; |
3516e984 | 3789 | if (need_symtab) |
252b5132 | 3790 | { |
12bd6957 | 3791 | i_shdrp[elf_onesymtab (abfd)] = &t->symtab_hdr; |
4fbb74a6 | 3792 | if (elf_numsections (abfd) > (SHN_LORESERVE & 0xFFFF)) |
9ad5cbcf | 3793 | { |
6a40cf0c NC |
3794 | elf_section_list * entry = elf_symtab_shndx_list (abfd); |
3795 | BFD_ASSERT (entry != NULL); | |
3796 | i_shdrp[entry->ndx] = & entry->hdr; | |
3797 | entry->hdr.sh_link = elf_onesymtab (abfd); | |
9ad5cbcf | 3798 | } |
12bd6957 AM |
3799 | i_shdrp[elf_strtab_sec (abfd)] = &t->strtab_hdr; |
3800 | t->symtab_hdr.sh_link = elf_strtab_sec (abfd); | |
252b5132 | 3801 | } |
38ce5b11 | 3802 | |
252b5132 RH |
3803 | for (sec = abfd->sections; sec; sec = sec->next) |
3804 | { | |
252b5132 | 3805 | asection *s; |
252b5132 | 3806 | |
91d6fa6a NC |
3807 | d = elf_section_data (sec); |
3808 | ||
252b5132 | 3809 | i_shdrp[d->this_idx] = &d->this_hdr; |
d4730f92 BS |
3810 | if (d->rel.idx != 0) |
3811 | i_shdrp[d->rel.idx] = d->rel.hdr; | |
3812 | if (d->rela.idx != 0) | |
3813 | i_shdrp[d->rela.idx] = d->rela.hdr; | |
252b5132 RH |
3814 | |
3815 | /* Fill in the sh_link and sh_info fields while we're at it. */ | |
3816 | ||
3817 | /* sh_link of a reloc section is the section index of the symbol | |
3818 | table. sh_info is the section index of the section to which | |
3819 | the relocation entries apply. */ | |
d4730f92 | 3820 | if (d->rel.idx != 0) |
252b5132 | 3821 | { |
12bd6957 | 3822 | d->rel.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3823 | d->rel.hdr->sh_info = d->this_idx; |
9ef5d938 | 3824 | d->rel.hdr->sh_flags |= SHF_INFO_LINK; |
252b5132 | 3825 | } |
d4730f92 | 3826 | if (d->rela.idx != 0) |
23bc299b | 3827 | { |
12bd6957 | 3828 | d->rela.hdr->sh_link = elf_onesymtab (abfd); |
d4730f92 | 3829 | d->rela.hdr->sh_info = d->this_idx; |
9ef5d938 | 3830 | d->rela.hdr->sh_flags |= SHF_INFO_LINK; |
23bc299b | 3831 | } |
252b5132 | 3832 | |
38ce5b11 L |
3833 | /* We need to set up sh_link for SHF_LINK_ORDER. */ |
3834 | if ((d->this_hdr.sh_flags & SHF_LINK_ORDER) != 0) | |
3835 | { | |
3836 | s = elf_linked_to_section (sec); | |
3837 | if (s) | |
38ce5b11 | 3838 | { |
f2876037 | 3839 | /* elf_linked_to_section points to the input section. */ |
ccd2ec6a | 3840 | if (link_info != NULL) |
38ce5b11 | 3841 | { |
f2876037 | 3842 | /* Check discarded linkonce section. */ |
dbaa2011 | 3843 | if (discarded_section (s)) |
38ce5b11 | 3844 | { |
ccd2ec6a | 3845 | asection *kept; |
4eca0228 | 3846 | _bfd_error_handler |
695344c0 | 3847 | /* xgettext:c-format */ |
871b3ab2 AM |
3848 | (_("%pB: sh_link of section `%pA' points to" |
3849 | " discarded section `%pA' of `%pB'"), | |
ccd2ec6a L |
3850 | abfd, d->this_hdr.bfd_section, |
3851 | s, s->owner); | |
3852 | /* Point to the kept section if it has the same | |
3853 | size as the discarded one. */ | |
c0f00686 | 3854 | kept = _bfd_elf_check_kept_section (s, link_info); |
ccd2ec6a | 3855 | if (kept == NULL) |
185d09ad | 3856 | { |
ccd2ec6a L |
3857 | bfd_set_error (bfd_error_bad_value); |
3858 | return FALSE; | |
185d09ad | 3859 | } |
ccd2ec6a | 3860 | s = kept; |
38ce5b11 | 3861 | } |
e424ecc8 | 3862 | |
ccd2ec6a L |
3863 | s = s->output_section; |
3864 | BFD_ASSERT (s != NULL); | |
38ce5b11 | 3865 | } |
f2876037 L |
3866 | else |
3867 | { | |
3868 | /* Handle objcopy. */ | |
3869 | if (s->output_section == NULL) | |
3870 | { | |
4eca0228 | 3871 | _bfd_error_handler |
695344c0 | 3872 | /* xgettext:c-format */ |
871b3ab2 AM |
3873 | (_("%pB: sh_link of section `%pA' points to" |
3874 | " removed section `%pA' of `%pB'"), | |
f2876037 L |
3875 | abfd, d->this_hdr.bfd_section, s, s->owner); |
3876 | bfd_set_error (bfd_error_bad_value); | |
3877 | return FALSE; | |
3878 | } | |
3879 | s = s->output_section; | |
3880 | } | |
ccd2ec6a L |
3881 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; |
3882 | } | |
3883 | else | |
3884 | { | |
3885 | /* PR 290: | |
3886 | The Intel C compiler generates SHT_IA_64_UNWIND with | |
3887 | SHF_LINK_ORDER. But it doesn't set the sh_link or | |
3888 | sh_info fields. Hence we could get the situation | |
08a40648 | 3889 | where s is NULL. */ |
ccd2ec6a L |
3890 | const struct elf_backend_data *bed |
3891 | = get_elf_backend_data (abfd); | |
3892 | if (bed->link_order_error_handler) | |
3893 | bed->link_order_error_handler | |
695344c0 | 3894 | /* xgettext:c-format */ |
871b3ab2 | 3895 | (_("%pB: warning: sh_link not set for section `%pA'"), |
ccd2ec6a | 3896 | abfd, sec); |
38ce5b11 L |
3897 | } |
3898 | } | |
3899 | ||
252b5132 RH |
3900 | switch (d->this_hdr.sh_type) |
3901 | { | |
3902 | case SHT_REL: | |
3903 | case SHT_RELA: | |
3904 | /* A reloc section which we are treating as a normal BFD | |
3905 | section. sh_link is the section index of the symbol | |
3906 | table. sh_info is the section index of the section to | |
3907 | which the relocation entries apply. We assume that an | |
3908 | allocated reloc section uses the dynamic symbol table. | |
3909 | FIXME: How can we be sure? */ | |
3910 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3911 | if (s != NULL) | |
3912 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3913 | ||
bce964aa | 3914 | s = elf_get_reloc_section (sec); |
252b5132 | 3915 | if (s != NULL) |
9ef5d938 L |
3916 | { |
3917 | d->this_hdr.sh_info = elf_section_data (s)->this_idx; | |
3918 | d->this_hdr.sh_flags |= SHF_INFO_LINK; | |
3919 | } | |
252b5132 RH |
3920 | break; |
3921 | ||
3922 | case SHT_STRTAB: | |
3923 | /* We assume that a section named .stab*str is a stabs | |
3924 | string section. We look for a section with the same name | |
3925 | but without the trailing ``str'', and set its sh_link | |
3926 | field to point to this section. */ | |
0112cd26 | 3927 | if (CONST_STRNEQ (sec->name, ".stab") |
252b5132 RH |
3928 | && strcmp (sec->name + strlen (sec->name) - 3, "str") == 0) |
3929 | { | |
3930 | size_t len; | |
3931 | char *alc; | |
3932 | ||
3933 | len = strlen (sec->name); | |
a50b1753 | 3934 | alc = (char *) bfd_malloc (len - 2); |
252b5132 | 3935 | if (alc == NULL) |
b34976b6 | 3936 | return FALSE; |
d4c88bbb | 3937 | memcpy (alc, sec->name, len - 3); |
252b5132 RH |
3938 | alc[len - 3] = '\0'; |
3939 | s = bfd_get_section_by_name (abfd, alc); | |
3940 | free (alc); | |
3941 | if (s != NULL) | |
3942 | { | |
3943 | elf_section_data (s)->this_hdr.sh_link = d->this_idx; | |
3944 | ||
3945 | /* This is a .stab section. */ | |
0594c12d AM |
3946 | if (elf_section_data (s)->this_hdr.sh_entsize == 0) |
3947 | elf_section_data (s)->this_hdr.sh_entsize | |
3948 | = 4 + 2 * bfd_get_arch_size (abfd) / 8; | |
252b5132 RH |
3949 | } |
3950 | } | |
3951 | break; | |
3952 | ||
3953 | case SHT_DYNAMIC: | |
3954 | case SHT_DYNSYM: | |
3955 | case SHT_GNU_verneed: | |
3956 | case SHT_GNU_verdef: | |
3957 | /* sh_link is the section header index of the string table | |
3958 | used for the dynamic entries, or the symbol table, or the | |
3959 | version strings. */ | |
3960 | s = bfd_get_section_by_name (abfd, ".dynstr"); | |
3961 | if (s != NULL) | |
3962 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3963 | break; | |
3964 | ||
7f1204bb JJ |
3965 | case SHT_GNU_LIBLIST: |
3966 | /* sh_link is the section header index of the prelink library | |
08a40648 AM |
3967 | list used for the dynamic entries, or the symbol table, or |
3968 | the version strings. */ | |
7f1204bb JJ |
3969 | s = bfd_get_section_by_name (abfd, (sec->flags & SEC_ALLOC) |
3970 | ? ".dynstr" : ".gnu.libstr"); | |
3971 | if (s != NULL) | |
3972 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3973 | break; | |
3974 | ||
252b5132 | 3975 | case SHT_HASH: |
fdc90cb4 | 3976 | case SHT_GNU_HASH: |
252b5132 RH |
3977 | case SHT_GNU_versym: |
3978 | /* sh_link is the section header index of the symbol table | |
3979 | this hash table or version table is for. */ | |
3980 | s = bfd_get_section_by_name (abfd, ".dynsym"); | |
3981 | if (s != NULL) | |
3982 | d->this_hdr.sh_link = elf_section_data (s)->this_idx; | |
3983 | break; | |
dbb410c3 AM |
3984 | |
3985 | case SHT_GROUP: | |
12bd6957 | 3986 | d->this_hdr.sh_link = elf_onesymtab (abfd); |
252b5132 RH |
3987 | } |
3988 | } | |
3989 | ||
3e19fb8f L |
3990 | /* Delay setting sh_name to _bfd_elf_write_object_contents so that |
3991 | _bfd_elf_assign_file_positions_for_non_load can convert DWARF | |
3992 | debug section name from .debug_* to .zdebug_* if needed. */ | |
3993 | ||
b34976b6 | 3994 | return TRUE; |
252b5132 RH |
3995 | } |
3996 | ||
5372391b | 3997 | static bfd_boolean |
217aa764 | 3998 | sym_is_global (bfd *abfd, asymbol *sym) |
252b5132 RH |
3999 | { |
4000 | /* If the backend has a special mapping, use it. */ | |
9c5bfbb7 | 4001 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 AM |
4002 | if (bed->elf_backend_sym_is_global) |
4003 | return (*bed->elf_backend_sym_is_global) (abfd, sym); | |
252b5132 | 4004 | |
e47bf690 | 4005 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 |
252b5132 RH |
4006 | || bfd_is_und_section (bfd_get_section (sym)) |
4007 | || bfd_is_com_section (bfd_get_section (sym))); | |
4008 | } | |
4009 | ||
76359541 TP |
4010 | /* Filter global symbols of ABFD to include in the import library. All |
4011 | SYMCOUNT symbols of ABFD can be examined from their pointers in | |
4012 | SYMS. Pointers of symbols to keep should be stored contiguously at | |
4013 | the beginning of that array. | |
4014 | ||
4015 | Returns the number of symbols to keep. */ | |
4016 | ||
4017 | unsigned int | |
4018 | _bfd_elf_filter_global_symbols (bfd *abfd, struct bfd_link_info *info, | |
4019 | asymbol **syms, long symcount) | |
4020 | { | |
4021 | long src_count, dst_count = 0; | |
4022 | ||
4023 | for (src_count = 0; src_count < symcount; src_count++) | |
4024 | { | |
4025 | asymbol *sym = syms[src_count]; | |
4026 | char *name = (char *) bfd_asymbol_name (sym); | |
4027 | struct bfd_link_hash_entry *h; | |
4028 | ||
4029 | if (!sym_is_global (abfd, sym)) | |
4030 | continue; | |
4031 | ||
4032 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, FALSE); | |
5df1bc57 AM |
4033 | if (h == NULL) |
4034 | continue; | |
76359541 TP |
4035 | if (h->type != bfd_link_hash_defined && h->type != bfd_link_hash_defweak) |
4036 | continue; | |
76359541 TP |
4037 | if (h->linker_def || h->ldscript_def) |
4038 | continue; | |
4039 | ||
4040 | syms[dst_count++] = sym; | |
4041 | } | |
4042 | ||
4043 | syms[dst_count] = NULL; | |
4044 | ||
4045 | return dst_count; | |
4046 | } | |
4047 | ||
5372391b | 4048 | /* Don't output section symbols for sections that are not going to be |
c6d8cab4 | 4049 | output, that are duplicates or there is no BFD section. */ |
5372391b AM |
4050 | |
4051 | static bfd_boolean | |
4052 | ignore_section_sym (bfd *abfd, asymbol *sym) | |
4053 | { | |
c6d8cab4 L |
4054 | elf_symbol_type *type_ptr; |
4055 | ||
db0c309f NC |
4056 | if (sym == NULL) |
4057 | return FALSE; | |
4058 | ||
c6d8cab4 L |
4059 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
4060 | return FALSE; | |
4061 | ||
db0c309f NC |
4062 | if (sym->section == NULL) |
4063 | return TRUE; | |
4064 | ||
c6d8cab4 L |
4065 | type_ptr = elf_symbol_from (abfd, sym); |
4066 | return ((type_ptr != NULL | |
4067 | && type_ptr->internal_elf_sym.st_shndx != 0 | |
4068 | && bfd_is_abs_section (sym->section)) | |
4069 | || !(sym->section->owner == abfd | |
db0c309f NC |
4070 | || (sym->section->output_section != NULL |
4071 | && sym->section->output_section->owner == abfd | |
2633a79c AM |
4072 | && sym->section->output_offset == 0) |
4073 | || bfd_is_abs_section (sym->section))); | |
5372391b AM |
4074 | } |
4075 | ||
2633a79c AM |
4076 | /* Map symbol from it's internal number to the external number, moving |
4077 | all local symbols to be at the head of the list. */ | |
4078 | ||
b34976b6 | 4079 | static bfd_boolean |
12bd6957 | 4080 | elf_map_symbols (bfd *abfd, unsigned int *pnum_locals) |
252b5132 | 4081 | { |
dc810e39 | 4082 | unsigned int symcount = bfd_get_symcount (abfd); |
252b5132 RH |
4083 | asymbol **syms = bfd_get_outsymbols (abfd); |
4084 | asymbol **sect_syms; | |
dc810e39 AM |
4085 | unsigned int num_locals = 0; |
4086 | unsigned int num_globals = 0; | |
4087 | unsigned int num_locals2 = 0; | |
4088 | unsigned int num_globals2 = 0; | |
7292b3ac | 4089 | unsigned int max_index = 0; |
dc810e39 | 4090 | unsigned int idx; |
252b5132 RH |
4091 | asection *asect; |
4092 | asymbol **new_syms; | |
252b5132 RH |
4093 | |
4094 | #ifdef DEBUG | |
4095 | fprintf (stderr, "elf_map_symbols\n"); | |
4096 | fflush (stderr); | |
4097 | #endif | |
4098 | ||
252b5132 RH |
4099 | for (asect = abfd->sections; asect; asect = asect->next) |
4100 | { | |
4101 | if (max_index < asect->index) | |
4102 | max_index = asect->index; | |
4103 | } | |
4104 | ||
4105 | max_index++; | |
a50b1753 | 4106 | sect_syms = (asymbol **) bfd_zalloc2 (abfd, max_index, sizeof (asymbol *)); |
252b5132 | 4107 | if (sect_syms == NULL) |
b34976b6 | 4108 | return FALSE; |
252b5132 | 4109 | elf_section_syms (abfd) = sect_syms; |
4e89ac30 | 4110 | elf_num_section_syms (abfd) = max_index; |
252b5132 | 4111 | |
079e9a2f AM |
4112 | /* Init sect_syms entries for any section symbols we have already |
4113 | decided to output. */ | |
252b5132 RH |
4114 | for (idx = 0; idx < symcount; idx++) |
4115 | { | |
dc810e39 | 4116 | asymbol *sym = syms[idx]; |
c044fabd | 4117 | |
252b5132 | 4118 | if ((sym->flags & BSF_SECTION_SYM) != 0 |
0f0a5e58 | 4119 | && sym->value == 0 |
2633a79c AM |
4120 | && !ignore_section_sym (abfd, sym) |
4121 | && !bfd_is_abs_section (sym->section)) | |
252b5132 | 4122 | { |
5372391b | 4123 | asection *sec = sym->section; |
252b5132 | 4124 | |
5372391b AM |
4125 | if (sec->owner != abfd) |
4126 | sec = sec->output_section; | |
252b5132 | 4127 | |
5372391b | 4128 | sect_syms[sec->index] = syms[idx]; |
252b5132 RH |
4129 | } |
4130 | } | |
4131 | ||
252b5132 RH |
4132 | /* Classify all of the symbols. */ |
4133 | for (idx = 0; idx < symcount; idx++) | |
4134 | { | |
2633a79c | 4135 | if (sym_is_global (abfd, syms[idx])) |
252b5132 | 4136 | num_globals++; |
2633a79c AM |
4137 | else if (!ignore_section_sym (abfd, syms[idx])) |
4138 | num_locals++; | |
252b5132 | 4139 | } |
079e9a2f | 4140 | |
5372391b | 4141 | /* We will be adding a section symbol for each normal BFD section. Most |
079e9a2f AM |
4142 | sections will already have a section symbol in outsymbols, but |
4143 | eg. SHT_GROUP sections will not, and we need the section symbol mapped | |
4144 | at least in that case. */ | |
252b5132 RH |
4145 | for (asect = abfd->sections; asect; asect = asect->next) |
4146 | { | |
079e9a2f | 4147 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4148 | { |
079e9a2f | 4149 | if (!sym_is_global (abfd, asect->symbol)) |
252b5132 RH |
4150 | num_locals++; |
4151 | else | |
4152 | num_globals++; | |
252b5132 RH |
4153 | } |
4154 | } | |
4155 | ||
4156 | /* Now sort the symbols so the local symbols are first. */ | |
a50b1753 | 4157 | new_syms = (asymbol **) bfd_alloc2 (abfd, num_locals + num_globals, |
07d6d2b8 | 4158 | sizeof (asymbol *)); |
dc810e39 | 4159 | |
252b5132 | 4160 | if (new_syms == NULL) |
b34976b6 | 4161 | return FALSE; |
252b5132 RH |
4162 | |
4163 | for (idx = 0; idx < symcount; idx++) | |
4164 | { | |
4165 | asymbol *sym = syms[idx]; | |
dc810e39 | 4166 | unsigned int i; |
252b5132 | 4167 | |
2633a79c AM |
4168 | if (sym_is_global (abfd, sym)) |
4169 | i = num_locals + num_globals2++; | |
4170 | else if (!ignore_section_sym (abfd, sym)) | |
252b5132 RH |
4171 | i = num_locals2++; |
4172 | else | |
2633a79c | 4173 | continue; |
252b5132 RH |
4174 | new_syms[i] = sym; |
4175 | sym->udata.i = i + 1; | |
4176 | } | |
4177 | for (asect = abfd->sections; asect; asect = asect->next) | |
4178 | { | |
079e9a2f | 4179 | if (sect_syms[asect->index] == NULL) |
252b5132 | 4180 | { |
079e9a2f | 4181 | asymbol *sym = asect->symbol; |
dc810e39 | 4182 | unsigned int i; |
252b5132 | 4183 | |
079e9a2f | 4184 | sect_syms[asect->index] = sym; |
252b5132 RH |
4185 | if (!sym_is_global (abfd, sym)) |
4186 | i = num_locals2++; | |
4187 | else | |
4188 | i = num_locals + num_globals2++; | |
4189 | new_syms[i] = sym; | |
4190 | sym->udata.i = i + 1; | |
4191 | } | |
4192 | } | |
4193 | ||
4194 | bfd_set_symtab (abfd, new_syms, num_locals + num_globals); | |
4195 | ||
12bd6957 | 4196 | *pnum_locals = num_locals; |
b34976b6 | 4197 | return TRUE; |
252b5132 RH |
4198 | } |
4199 | ||
4200 | /* Align to the maximum file alignment that could be required for any | |
4201 | ELF data structure. */ | |
4202 | ||
268b6b39 | 4203 | static inline file_ptr |
217aa764 | 4204 | align_file_position (file_ptr off, int align) |
252b5132 RH |
4205 | { |
4206 | return (off + align - 1) & ~(align - 1); | |
4207 | } | |
4208 | ||
4209 | /* Assign a file position to a section, optionally aligning to the | |
4210 | required section alignment. */ | |
4211 | ||
217aa764 AM |
4212 | file_ptr |
4213 | _bfd_elf_assign_file_position_for_section (Elf_Internal_Shdr *i_shdrp, | |
4214 | file_ptr offset, | |
4215 | bfd_boolean align) | |
252b5132 | 4216 | { |
72de5009 AM |
4217 | if (align && i_shdrp->sh_addralign > 1) |
4218 | offset = BFD_ALIGN (offset, i_shdrp->sh_addralign); | |
252b5132 RH |
4219 | i_shdrp->sh_offset = offset; |
4220 | if (i_shdrp->bfd_section != NULL) | |
4221 | i_shdrp->bfd_section->filepos = offset; | |
4222 | if (i_shdrp->sh_type != SHT_NOBITS) | |
4223 | offset += i_shdrp->sh_size; | |
4224 | return offset; | |
4225 | } | |
4226 | ||
4227 | /* Compute the file positions we are going to put the sections at, and | |
4228 | otherwise prepare to begin writing out the ELF file. If LINK_INFO | |
4229 | is not NULL, this is being called by the ELF backend linker. */ | |
4230 | ||
b34976b6 | 4231 | bfd_boolean |
217aa764 AM |
4232 | _bfd_elf_compute_section_file_positions (bfd *abfd, |
4233 | struct bfd_link_info *link_info) | |
252b5132 | 4234 | { |
9c5bfbb7 | 4235 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
d4730f92 | 4236 | struct fake_section_arg fsargs; |
b34976b6 | 4237 | bfd_boolean failed; |
ef10c3ac | 4238 | struct elf_strtab_hash *strtab = NULL; |
252b5132 | 4239 | Elf_Internal_Shdr *shstrtab_hdr; |
3516e984 | 4240 | bfd_boolean need_symtab; |
252b5132 RH |
4241 | |
4242 | if (abfd->output_has_begun) | |
b34976b6 | 4243 | return TRUE; |
252b5132 RH |
4244 | |
4245 | /* Do any elf backend specific processing first. */ | |
4246 | if (bed->elf_backend_begin_write_processing) | |
4247 | (*bed->elf_backend_begin_write_processing) (abfd, link_info); | |
4248 | ||
4249 | if (! prep_headers (abfd)) | |
b34976b6 | 4250 | return FALSE; |
252b5132 | 4251 | |
e6c51ed4 | 4252 | /* Post process the headers if necessary. */ |
78245035 | 4253 | (*bed->elf_backend_post_process_headers) (abfd, link_info); |
e6c51ed4 | 4254 | |
d4730f92 BS |
4255 | fsargs.failed = FALSE; |
4256 | fsargs.link_info = link_info; | |
4257 | bfd_map_over_sections (abfd, elf_fake_sections, &fsargs); | |
4258 | if (fsargs.failed) | |
b34976b6 | 4259 | return FALSE; |
252b5132 | 4260 | |
da9f89d4 | 4261 | if (!assign_section_numbers (abfd, link_info)) |
b34976b6 | 4262 | return FALSE; |
252b5132 RH |
4263 | |
4264 | /* The backend linker builds symbol table information itself. */ | |
3516e984 L |
4265 | need_symtab = (link_info == NULL |
4266 | && (bfd_get_symcount (abfd) > 0 | |
4267 | || ((abfd->flags & (EXEC_P | DYNAMIC | HAS_RELOC)) | |
4268 | == HAS_RELOC))); | |
4269 | if (need_symtab) | |
252b5132 RH |
4270 | { |
4271 | /* Non-zero if doing a relocatable link. */ | |
4272 | int relocatable_p = ! (abfd->flags & (EXEC_P | DYNAMIC)); | |
4273 | ||
4274 | if (! swap_out_syms (abfd, &strtab, relocatable_p)) | |
b34976b6 | 4275 | return FALSE; |
252b5132 RH |
4276 | } |
4277 | ||
d4730f92 | 4278 | failed = FALSE; |
1126897b | 4279 | if (link_info == NULL) |
dbb410c3 | 4280 | { |
1126897b | 4281 | bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed); |
dbb410c3 | 4282 | if (failed) |
b34976b6 | 4283 | return FALSE; |
dbb410c3 AM |
4284 | } |
4285 | ||
252b5132 RH |
4286 | shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr; |
4287 | /* sh_name was set in prep_headers. */ | |
4288 | shstrtab_hdr->sh_type = SHT_STRTAB; | |
84865015 | 4289 | shstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
252b5132 | 4290 | shstrtab_hdr->sh_addr = 0; |
946748d5 | 4291 | /* sh_size is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4292 | shstrtab_hdr->sh_entsize = 0; |
4293 | shstrtab_hdr->sh_link = 0; | |
4294 | shstrtab_hdr->sh_info = 0; | |
3e19fb8f | 4295 | /* sh_offset is set in _bfd_elf_assign_file_positions_for_non_load. */ |
252b5132 RH |
4296 | shstrtab_hdr->sh_addralign = 1; |
4297 | ||
c84fca4d | 4298 | if (!assign_file_positions_except_relocs (abfd, link_info)) |
b34976b6 | 4299 | return FALSE; |
252b5132 | 4300 | |
3516e984 | 4301 | if (need_symtab) |
252b5132 RH |
4302 | { |
4303 | file_ptr off; | |
4304 | Elf_Internal_Shdr *hdr; | |
4305 | ||
12bd6957 | 4306 | off = elf_next_file_pos (abfd); |
252b5132 | 4307 | |
6a40cf0c | 4308 | hdr = & elf_symtab_hdr (abfd); |
b34976b6 | 4309 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4310 | |
6a40cf0c NC |
4311 | if (elf_symtab_shndx_list (abfd) != NULL) |
4312 | { | |
4313 | hdr = & elf_symtab_shndx_list (abfd)->hdr; | |
4314 | if (hdr->sh_size != 0) | |
4315 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
4316 | /* FIXME: What about other symtab_shndx sections in the list ? */ | |
4317 | } | |
9ad5cbcf | 4318 | |
252b5132 | 4319 | hdr = &elf_tdata (abfd)->strtab_hdr; |
b34976b6 | 4320 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 4321 | |
12bd6957 | 4322 | elf_next_file_pos (abfd) = off; |
252b5132 RH |
4323 | |
4324 | /* Now that we know where the .strtab section goes, write it | |
08a40648 | 4325 | out. */ |
252b5132 | 4326 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
ef10c3ac | 4327 | || ! _bfd_elf_strtab_emit (abfd, strtab)) |
b34976b6 | 4328 | return FALSE; |
ef10c3ac | 4329 | _bfd_elf_strtab_free (strtab); |
252b5132 RH |
4330 | } |
4331 | ||
b34976b6 | 4332 | abfd->output_has_begun = TRUE; |
252b5132 | 4333 | |
b34976b6 | 4334 | return TRUE; |
252b5132 RH |
4335 | } |
4336 | ||
8ded5a0f AM |
4337 | /* Make an initial estimate of the size of the program header. If we |
4338 | get the number wrong here, we'll redo section placement. */ | |
4339 | ||
4340 | static bfd_size_type | |
4341 | get_program_header_size (bfd *abfd, struct bfd_link_info *info) | |
4342 | { | |
4343 | size_t segs; | |
4344 | asection *s; | |
2b05f1b7 | 4345 | const struct elf_backend_data *bed; |
8ded5a0f AM |
4346 | |
4347 | /* Assume we will need exactly two PT_LOAD segments: one for text | |
4348 | and one for data. */ | |
4349 | segs = 2; | |
4350 | ||
4351 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4352 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4353 | { |
4354 | /* If we have a loadable interpreter section, we need a | |
4355 | PT_INTERP segment. In this case, assume we also need a | |
4356 | PT_PHDR segment, although that may not be true for all | |
4357 | targets. */ | |
e9a38e0f | 4358 | segs += 2; |
8ded5a0f AM |
4359 | } |
4360 | ||
4361 | if (bfd_get_section_by_name (abfd, ".dynamic") != NULL) | |
4362 | { | |
4363 | /* We need a PT_DYNAMIC segment. */ | |
4364 | ++segs; | |
f210dcff | 4365 | } |
08a40648 | 4366 | |
ceae84aa | 4367 | if (info != NULL && info->relro) |
f210dcff L |
4368 | { |
4369 | /* We need a PT_GNU_RELRO segment. */ | |
4370 | ++segs; | |
8ded5a0f AM |
4371 | } |
4372 | ||
12bd6957 | 4373 | if (elf_eh_frame_hdr (abfd)) |
8ded5a0f AM |
4374 | { |
4375 | /* We need a PT_GNU_EH_FRAME segment. */ | |
4376 | ++segs; | |
4377 | } | |
4378 | ||
12bd6957 | 4379 | if (elf_stack_flags (abfd)) |
8ded5a0f | 4380 | { |
2b05f1b7 L |
4381 | /* We need a PT_GNU_STACK segment. */ |
4382 | ++segs; | |
4383 | } | |
94b11780 | 4384 | |
0a59decb L |
4385 | s = bfd_get_section_by_name (abfd, |
4386 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
4387 | if (s != NULL && s->size != 0) | |
4388 | { | |
4389 | /* We need a PT_GNU_PROPERTY segment. */ | |
4390 | ++segs; | |
4391 | } | |
4392 | ||
2b05f1b7 L |
4393 | for (s = abfd->sections; s != NULL; s = s->next) |
4394 | { | |
8ded5a0f | 4395 | if ((s->flags & SEC_LOAD) != 0 |
23e463ed | 4396 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4397 | { |
23e463ed | 4398 | unsigned int alignment_power; |
8ded5a0f AM |
4399 | /* We need a PT_NOTE segment. */ |
4400 | ++segs; | |
23e463ed L |
4401 | /* Try to create just one PT_NOTE segment for all adjacent |
4402 | loadable SHT_NOTE sections. gABI requires that within a | |
4403 | PT_NOTE segment (and also inside of each SHT_NOTE section) | |
4404 | each note should have the same alignment. So we check | |
4405 | whether the sections are correctly aligned. */ | |
4406 | alignment_power = s->alignment_power; | |
4407 | while (s->next != NULL | |
4408 | && s->next->alignment_power == alignment_power | |
4409 | && (s->next->flags & SEC_LOAD) != 0 | |
4410 | && elf_section_type (s->next) == SHT_NOTE) | |
4411 | s = s->next; | |
8ded5a0f AM |
4412 | } |
4413 | } | |
4414 | ||
4415 | for (s = abfd->sections; s != NULL; s = s->next) | |
4416 | { | |
4417 | if (s->flags & SEC_THREAD_LOCAL) | |
4418 | { | |
4419 | /* We need a PT_TLS segment. */ | |
4420 | ++segs; | |
4421 | break; | |
4422 | } | |
4423 | } | |
4424 | ||
2b05f1b7 | 4425 | bed = get_elf_backend_data (abfd); |
a91e1603 L |
4426 | |
4427 | if ((abfd->flags & D_PAGED) != 0) | |
4428 | { | |
4429 | /* Add a PT_GNU_MBIND segment for each mbind section. */ | |
4430 | unsigned int page_align_power = bfd_log2 (bed->commonpagesize); | |
4431 | for (s = abfd->sections; s != NULL; s = s->next) | |
4432 | if (elf_section_flags (s) & SHF_GNU_MBIND) | |
4433 | { | |
4434 | if (elf_section_data (s)->this_hdr.sh_info | |
4435 | > PT_GNU_MBIND_NUM) | |
4436 | { | |
4437 | _bfd_error_handler | |
4438 | /* xgettext:c-format */ | |
871b3ab2 | 4439 | (_("%pB: GNU_MBIN section `%pA' has invalid sh_info field: %d"), |
a91e1603 L |
4440 | abfd, s, elf_section_data (s)->this_hdr.sh_info); |
4441 | continue; | |
4442 | } | |
4443 | /* Align mbind section to page size. */ | |
4444 | if (s->alignment_power < page_align_power) | |
4445 | s->alignment_power = page_align_power; | |
4446 | segs ++; | |
4447 | } | |
4448 | } | |
4449 | ||
4450 | /* Let the backend count up any program headers it might need. */ | |
4451 | if (bed->elf_backend_additional_program_headers) | |
8ded5a0f AM |
4452 | { |
4453 | int a; | |
4454 | ||
4455 | a = (*bed->elf_backend_additional_program_headers) (abfd, info); | |
4456 | if (a == -1) | |
4457 | abort (); | |
4458 | segs += a; | |
4459 | } | |
4460 | ||
4461 | return segs * bed->s->sizeof_phdr; | |
4462 | } | |
4463 | ||
2ea37f1c NC |
4464 | /* Find the segment that contains the output_section of section. */ |
4465 | ||
4466 | Elf_Internal_Phdr * | |
4467 | _bfd_elf_find_segment_containing_section (bfd * abfd, asection * section) | |
4468 | { | |
4469 | struct elf_segment_map *m; | |
4470 | Elf_Internal_Phdr *p; | |
4471 | ||
12bd6957 | 4472 | for (m = elf_seg_map (abfd), p = elf_tdata (abfd)->phdr; |
2ea37f1c NC |
4473 | m != NULL; |
4474 | m = m->next, p++) | |
4475 | { | |
4476 | int i; | |
4477 | ||
4478 | for (i = m->count - 1; i >= 0; i--) | |
4479 | if (m->sections[i] == section) | |
4480 | return p; | |
4481 | } | |
4482 | ||
4483 | return NULL; | |
4484 | } | |
4485 | ||
252b5132 RH |
4486 | /* Create a mapping from a set of sections to a program segment. */ |
4487 | ||
217aa764 AM |
4488 | static struct elf_segment_map * |
4489 | make_mapping (bfd *abfd, | |
4490 | asection **sections, | |
4491 | unsigned int from, | |
4492 | unsigned int to, | |
4493 | bfd_boolean phdr) | |
252b5132 RH |
4494 | { |
4495 | struct elf_segment_map *m; | |
4496 | unsigned int i; | |
4497 | asection **hdrpp; | |
dc810e39 | 4498 | bfd_size_type amt; |
252b5132 | 4499 | |
00bee008 AM |
4500 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4501 | amt += (to - from) * sizeof (asection *); | |
a50b1753 | 4502 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
4503 | if (m == NULL) |
4504 | return NULL; | |
4505 | m->next = NULL; | |
4506 | m->p_type = PT_LOAD; | |
4507 | for (i = from, hdrpp = sections + from; i < to; i++, hdrpp++) | |
4508 | m->sections[i - from] = *hdrpp; | |
4509 | m->count = to - from; | |
4510 | ||
4511 | if (from == 0 && phdr) | |
4512 | { | |
4513 | /* Include the headers in the first PT_LOAD segment. */ | |
4514 | m->includes_filehdr = 1; | |
4515 | m->includes_phdrs = 1; | |
4516 | } | |
4517 | ||
4518 | return m; | |
4519 | } | |
4520 | ||
229fcec5 MM |
4521 | /* Create the PT_DYNAMIC segment, which includes DYNSEC. Returns NULL |
4522 | on failure. */ | |
4523 | ||
4524 | struct elf_segment_map * | |
4525 | _bfd_elf_make_dynamic_segment (bfd *abfd, asection *dynsec) | |
4526 | { | |
4527 | struct elf_segment_map *m; | |
4528 | ||
a50b1753 | 4529 | m = (struct elf_segment_map *) bfd_zalloc (abfd, |
07d6d2b8 | 4530 | sizeof (struct elf_segment_map)); |
229fcec5 MM |
4531 | if (m == NULL) |
4532 | return NULL; | |
4533 | m->next = NULL; | |
4534 | m->p_type = PT_DYNAMIC; | |
4535 | m->count = 1; | |
4536 | m->sections[0] = dynsec; | |
08a40648 | 4537 | |
229fcec5 MM |
4538 | return m; |
4539 | } | |
4540 | ||
8ded5a0f | 4541 | /* Possibly add or remove segments from the segment map. */ |
252b5132 | 4542 | |
b34976b6 | 4543 | static bfd_boolean |
3dea8fca AM |
4544 | elf_modify_segment_map (bfd *abfd, |
4545 | struct bfd_link_info *info, | |
4546 | bfd_boolean remove_empty_load) | |
252b5132 | 4547 | { |
252e386e | 4548 | struct elf_segment_map **m; |
8ded5a0f | 4549 | const struct elf_backend_data *bed; |
252b5132 | 4550 | |
8ded5a0f AM |
4551 | /* The placement algorithm assumes that non allocated sections are |
4552 | not in PT_LOAD segments. We ensure this here by removing such | |
4553 | sections from the segment map. We also remove excluded | |
252e386e AM |
4554 | sections. Finally, any PT_LOAD segment without sections is |
4555 | removed. */ | |
12bd6957 | 4556 | m = &elf_seg_map (abfd); |
252e386e | 4557 | while (*m) |
8ded5a0f AM |
4558 | { |
4559 | unsigned int i, new_count; | |
252b5132 | 4560 | |
252e386e | 4561 | for (new_count = 0, i = 0; i < (*m)->count; i++) |
8ded5a0f | 4562 | { |
252e386e AM |
4563 | if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0 |
4564 | && (((*m)->sections[i]->flags & SEC_ALLOC) != 0 | |
4565 | || (*m)->p_type != PT_LOAD)) | |
8ded5a0f | 4566 | { |
252e386e AM |
4567 | (*m)->sections[new_count] = (*m)->sections[i]; |
4568 | new_count++; | |
8ded5a0f AM |
4569 | } |
4570 | } | |
252e386e | 4571 | (*m)->count = new_count; |
252b5132 | 4572 | |
1a9ccd70 NC |
4573 | if (remove_empty_load |
4574 | && (*m)->p_type == PT_LOAD | |
4575 | && (*m)->count == 0 | |
4576 | && !(*m)->includes_phdrs) | |
252e386e AM |
4577 | *m = (*m)->next; |
4578 | else | |
4579 | m = &(*m)->next; | |
8ded5a0f | 4580 | } |
252b5132 | 4581 | |
8ded5a0f AM |
4582 | bed = get_elf_backend_data (abfd); |
4583 | if (bed->elf_backend_modify_segment_map != NULL) | |
252b5132 | 4584 | { |
252e386e | 4585 | if (!(*bed->elf_backend_modify_segment_map) (abfd, info)) |
8ded5a0f | 4586 | return FALSE; |
252b5132 | 4587 | } |
252b5132 | 4588 | |
8ded5a0f AM |
4589 | return TRUE; |
4590 | } | |
252b5132 | 4591 | |
dbc88fc1 AM |
4592 | #define IS_TBSS(s) \ |
4593 | ((s->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) == SEC_THREAD_LOCAL) | |
4594 | ||
8ded5a0f | 4595 | /* Set up a mapping from BFD sections to program segments. */ |
252b5132 | 4596 | |
8ded5a0f AM |
4597 | bfd_boolean |
4598 | _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) | |
4599 | { | |
4600 | unsigned int count; | |
4601 | struct elf_segment_map *m; | |
4602 | asection **sections = NULL; | |
4603 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
3dea8fca | 4604 | bfd_boolean no_user_phdrs; |
252b5132 | 4605 | |
12bd6957 | 4606 | no_user_phdrs = elf_seg_map (abfd) == NULL; |
d324f6d6 RM |
4607 | |
4608 | if (info != NULL) | |
4609 | info->user_phdrs = !no_user_phdrs; | |
4610 | ||
3dea8fca | 4611 | if (no_user_phdrs && bfd_count_sections (abfd) != 0) |
252b5132 | 4612 | { |
8ded5a0f AM |
4613 | asection *s; |
4614 | unsigned int i; | |
4615 | struct elf_segment_map *mfirst; | |
4616 | struct elf_segment_map **pm; | |
4617 | asection *last_hdr; | |
4618 | bfd_vma last_size; | |
00bee008 | 4619 | unsigned int hdr_index; |
8ded5a0f AM |
4620 | bfd_vma maxpagesize; |
4621 | asection **hdrpp; | |
64029e93 | 4622 | bfd_boolean phdr_in_segment; |
8ded5a0f | 4623 | bfd_boolean writable; |
2888249f | 4624 | bfd_boolean executable; |
8ded5a0f AM |
4625 | int tls_count = 0; |
4626 | asection *first_tls = NULL; | |
a91e1603 | 4627 | asection *first_mbind = NULL; |
8ded5a0f AM |
4628 | asection *dynsec, *eh_frame_hdr; |
4629 | bfd_size_type amt; | |
8d06853e | 4630 | bfd_vma addr_mask, wrap_to = 0; |
64029e93 | 4631 | bfd_size_type phdr_size; |
252b5132 | 4632 | |
8ded5a0f | 4633 | /* Select the allocated sections, and sort them. */ |
252b5132 | 4634 | |
a50b1753 | 4635 | sections = (asection **) bfd_malloc2 (bfd_count_sections (abfd), |
07d6d2b8 | 4636 | sizeof (asection *)); |
8ded5a0f | 4637 | if (sections == NULL) |
252b5132 | 4638 | goto error_return; |
252b5132 | 4639 | |
8d06853e AM |
4640 | /* Calculate top address, avoiding undefined behaviour of shift |
4641 | left operator when shift count is equal to size of type | |
4642 | being shifted. */ | |
4643 | addr_mask = ((bfd_vma) 1 << (bfd_arch_bits_per_address (abfd) - 1)) - 1; | |
4644 | addr_mask = (addr_mask << 1) + 1; | |
4645 | ||
8ded5a0f AM |
4646 | i = 0; |
4647 | for (s = abfd->sections; s != NULL; s = s->next) | |
4648 | { | |
4649 | if ((s->flags & SEC_ALLOC) != 0) | |
4650 | { | |
4651 | sections[i] = s; | |
4652 | ++i; | |
8d06853e AM |
4653 | /* A wrapping section potentially clashes with header. */ |
4654 | if (((s->lma + s->size) & addr_mask) < (s->lma & addr_mask)) | |
4655 | wrap_to = (s->lma + s->size) & addr_mask; | |
8ded5a0f AM |
4656 | } |
4657 | } | |
4658 | BFD_ASSERT (i <= bfd_count_sections (abfd)); | |
4659 | count = i; | |
252b5132 | 4660 | |
8ded5a0f | 4661 | qsort (sections, (size_t) count, sizeof (asection *), elf_sort_sections); |
252b5132 | 4662 | |
64029e93 AM |
4663 | phdr_size = elf_program_header_size (abfd); |
4664 | if (phdr_size == (bfd_size_type) -1) | |
4665 | phdr_size = get_program_header_size (abfd, info); | |
4666 | phdr_size += bed->s->sizeof_ehdr; | |
4667 | maxpagesize = bed->maxpagesize; | |
4668 | if (maxpagesize == 0) | |
4669 | maxpagesize = 1; | |
4670 | phdr_in_segment = info != NULL && info->load_phdrs; | |
4671 | if (count != 0 | |
4672 | && (((sections[0]->lma & addr_mask) & (maxpagesize - 1)) | |
4673 | >= (phdr_size & (maxpagesize - 1)))) | |
4674 | /* For compatibility with old scripts that may not be using | |
4675 | SIZEOF_HEADERS, add headers when it looks like space has | |
4676 | been left for them. */ | |
4677 | phdr_in_segment = TRUE; | |
252b5132 | 4678 | |
64029e93 | 4679 | /* Build the mapping. */ |
8ded5a0f AM |
4680 | mfirst = NULL; |
4681 | pm = &mfirst; | |
252b5132 | 4682 | |
8ded5a0f AM |
4683 | /* If we have a .interp section, then create a PT_PHDR segment for |
4684 | the program headers and a PT_INTERP segment for the .interp | |
4685 | section. */ | |
4686 | s = bfd_get_section_by_name (abfd, ".interp"); | |
1b9e270b | 4687 | if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->size != 0) |
8ded5a0f AM |
4688 | { |
4689 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 4690 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4691 | if (m == NULL) |
4692 | goto error_return; | |
4693 | m->next = NULL; | |
4694 | m->p_type = PT_PHDR; | |
f882209d | 4695 | m->p_flags = PF_R; |
8ded5a0f AM |
4696 | m->p_flags_valid = 1; |
4697 | m->includes_phdrs = 1; | |
64029e93 | 4698 | phdr_in_segment = TRUE; |
8ded5a0f AM |
4699 | *pm = m; |
4700 | pm = &m->next; | |
252b5132 | 4701 | |
8ded5a0f | 4702 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 4703 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4704 | if (m == NULL) |
4705 | goto error_return; | |
4706 | m->next = NULL; | |
4707 | m->p_type = PT_INTERP; | |
4708 | m->count = 1; | |
4709 | m->sections[0] = s; | |
4710 | ||
4711 | *pm = m; | |
4712 | pm = &m->next; | |
252b5132 | 4713 | } |
8ded5a0f AM |
4714 | |
4715 | /* Look through the sections. We put sections in the same program | |
4716 | segment when the start of the second section can be placed within | |
4717 | a few bytes of the end of the first section. */ | |
4718 | last_hdr = NULL; | |
4719 | last_size = 0; | |
00bee008 | 4720 | hdr_index = 0; |
8ded5a0f | 4721 | writable = FALSE; |
2888249f | 4722 | executable = FALSE; |
8ded5a0f AM |
4723 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); |
4724 | if (dynsec != NULL | |
4725 | && (dynsec->flags & SEC_LOAD) == 0) | |
4726 | dynsec = NULL; | |
4727 | ||
64029e93 AM |
4728 | if ((abfd->flags & D_PAGED) == 0) |
4729 | phdr_in_segment = FALSE; | |
4730 | ||
8ded5a0f AM |
4731 | /* Deal with -Ttext or something similar such that the first section |
4732 | is not adjacent to the program headers. This is an | |
4733 | approximation, since at this point we don't know exactly how many | |
4734 | program headers we will need. */ | |
64029e93 | 4735 | if (phdr_in_segment && count > 0) |
252b5132 | 4736 | { |
64029e93 AM |
4737 | bfd_vma phdr_lma; |
4738 | bfd_boolean separate_phdr = FALSE; | |
4739 | ||
4740 | phdr_lma = (sections[0]->lma - phdr_size) & addr_mask & -maxpagesize; | |
4741 | if (info != NULL | |
4742 | && info->separate_code | |
4743 | && (sections[0]->flags & SEC_CODE) != 0) | |
1a9ccd70 | 4744 | { |
64029e93 AM |
4745 | /* If data sections should be separate from code and |
4746 | thus not executable, and the first section is | |
4747 | executable then put the file and program headers in | |
4748 | their own PT_LOAD. */ | |
4749 | separate_phdr = TRUE; | |
4750 | if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize) | |
4751 | == (sections[0]->lma & addr_mask & -maxpagesize))) | |
4752 | { | |
4753 | /* The file and program headers are currently on the | |
4754 | same page as the first section. Put them on the | |
4755 | previous page if we can. */ | |
4756 | if (phdr_lma >= maxpagesize) | |
4757 | phdr_lma -= maxpagesize; | |
4758 | else | |
4759 | separate_phdr = FALSE; | |
4760 | } | |
4761 | } | |
4762 | if ((sections[0]->lma & addr_mask) < phdr_lma | |
4763 | || (sections[0]->lma & addr_mask) < phdr_size) | |
4764 | /* If file and program headers would be placed at the end | |
4765 | of memory then it's probably better to omit them. */ | |
4766 | phdr_in_segment = FALSE; | |
4767 | else if (phdr_lma < wrap_to) | |
4768 | /* If a section wraps around to where we'll be placing | |
4769 | file and program headers, then the headers will be | |
4770 | overwritten. */ | |
4771 | phdr_in_segment = FALSE; | |
4772 | else if (separate_phdr) | |
4773 | { | |
4774 | m = make_mapping (abfd, sections, 0, 0, phdr_in_segment); | |
4775 | if (m == NULL) | |
4776 | goto error_return; | |
4777 | m->p_paddr = phdr_lma; | |
4778 | m->p_vaddr_offset | |
4779 | = (sections[0]->vma - phdr_size) & addr_mask & -maxpagesize; | |
4780 | m->p_paddr_valid = 1; | |
4781 | *pm = m; | |
4782 | pm = &m->next; | |
4783 | phdr_in_segment = FALSE; | |
1a9ccd70 | 4784 | } |
252b5132 RH |
4785 | } |
4786 | ||
8ded5a0f | 4787 | for (i = 0, hdrpp = sections; i < count; i++, hdrpp++) |
252b5132 | 4788 | { |
8ded5a0f AM |
4789 | asection *hdr; |
4790 | bfd_boolean new_segment; | |
4791 | ||
4792 | hdr = *hdrpp; | |
4793 | ||
4794 | /* See if this section and the last one will fit in the same | |
4795 | segment. */ | |
4796 | ||
4797 | if (last_hdr == NULL) | |
4798 | { | |
4799 | /* If we don't have a segment yet, then we don't need a new | |
4800 | one (we build the last one after this loop). */ | |
4801 | new_segment = FALSE; | |
4802 | } | |
4803 | else if (last_hdr->lma - last_hdr->vma != hdr->lma - hdr->vma) | |
4804 | { | |
4805 | /* If this section has a different relation between the | |
4806 | virtual address and the load address, then we need a new | |
4807 | segment. */ | |
4808 | new_segment = TRUE; | |
4809 | } | |
b5599592 AM |
4810 | else if (hdr->lma < last_hdr->lma + last_size |
4811 | || last_hdr->lma + last_size < last_hdr->lma) | |
4812 | { | |
4813 | /* If this section has a load address that makes it overlap | |
4814 | the previous section, then we need a new segment. */ | |
4815 | new_segment = TRUE; | |
4816 | } | |
76cb3a89 AM |
4817 | else if ((abfd->flags & D_PAGED) != 0 |
4818 | && (((last_hdr->lma + last_size - 1) & -maxpagesize) | |
4819 | == (hdr->lma & -maxpagesize))) | |
4820 | { | |
4821 | /* If we are demand paged then we can't map two disk | |
4822 | pages onto the same memory page. */ | |
4823 | new_segment = FALSE; | |
4824 | } | |
39948a60 NC |
4825 | /* In the next test we have to be careful when last_hdr->lma is close |
4826 | to the end of the address space. If the aligned address wraps | |
4827 | around to the start of the address space, then there are no more | |
4828 | pages left in memory and it is OK to assume that the current | |
4829 | section can be included in the current segment. */ | |
76cb3a89 AM |
4830 | else if ((BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) |
4831 | + maxpagesize > last_hdr->lma) | |
4832 | && (BFD_ALIGN (last_hdr->lma + last_size, maxpagesize) | |
4833 | + maxpagesize <= hdr->lma)) | |
8ded5a0f AM |
4834 | { |
4835 | /* If putting this section in this segment would force us to | |
4836 | skip a page in the segment, then we need a new segment. */ | |
4837 | new_segment = TRUE; | |
4838 | } | |
4839 | else if ((last_hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0 | |
76cb3a89 | 4840 | && (hdr->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) != 0) |
8ded5a0f | 4841 | { |
e5654c0f AM |
4842 | /* We don't want to put a loaded section after a |
4843 | nonloaded (ie. bss style) section in the same segment | |
4844 | as that will force the non-loaded section to be loaded. | |
76cb3a89 | 4845 | Consider .tbss sections as loaded for this purpose. */ |
8ded5a0f AM |
4846 | new_segment = TRUE; |
4847 | } | |
4848 | else if ((abfd->flags & D_PAGED) == 0) | |
4849 | { | |
4850 | /* If the file is not demand paged, which means that we | |
4851 | don't require the sections to be correctly aligned in the | |
4852 | file, then there is no other reason for a new segment. */ | |
4853 | new_segment = FALSE; | |
4854 | } | |
2888249f L |
4855 | else if (info != NULL |
4856 | && info->separate_code | |
4857 | && executable != ((hdr->flags & SEC_CODE) != 0)) | |
4858 | { | |
4859 | new_segment = TRUE; | |
4860 | } | |
8ded5a0f | 4861 | else if (! writable |
76cb3a89 | 4862 | && (hdr->flags & SEC_READONLY) == 0) |
8ded5a0f AM |
4863 | { |
4864 | /* We don't want to put a writable section in a read only | |
76cb3a89 | 4865 | segment. */ |
8ded5a0f AM |
4866 | new_segment = TRUE; |
4867 | } | |
4868 | else | |
4869 | { | |
4870 | /* Otherwise, we can use the same segment. */ | |
4871 | new_segment = FALSE; | |
4872 | } | |
4873 | ||
2889e75b | 4874 | /* Allow interested parties a chance to override our decision. */ |
ceae84aa AM |
4875 | if (last_hdr != NULL |
4876 | && info != NULL | |
4877 | && info->callbacks->override_segment_assignment != NULL) | |
4878 | new_segment | |
4879 | = info->callbacks->override_segment_assignment (info, abfd, hdr, | |
4880 | last_hdr, | |
4881 | new_segment); | |
2889e75b | 4882 | |
8ded5a0f AM |
4883 | if (! new_segment) |
4884 | { | |
4885 | if ((hdr->flags & SEC_READONLY) == 0) | |
4886 | writable = TRUE; | |
2888249f L |
4887 | if ((hdr->flags & SEC_CODE) != 0) |
4888 | executable = TRUE; | |
8ded5a0f AM |
4889 | last_hdr = hdr; |
4890 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4891 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
8ded5a0f AM |
4892 | continue; |
4893 | } | |
4894 | ||
4895 | /* We need a new program segment. We must create a new program | |
00bee008 | 4896 | header holding all the sections from hdr_index until hdr. */ |
8ded5a0f | 4897 | |
00bee008 | 4898 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4899 | if (m == NULL) |
4900 | goto error_return; | |
4901 | ||
4902 | *pm = m; | |
4903 | pm = &m->next; | |
4904 | ||
252b5132 | 4905 | if ((hdr->flags & SEC_READONLY) == 0) |
b34976b6 | 4906 | writable = TRUE; |
8ded5a0f AM |
4907 | else |
4908 | writable = FALSE; | |
4909 | ||
2888249f L |
4910 | if ((hdr->flags & SEC_CODE) == 0) |
4911 | executable = FALSE; | |
4912 | else | |
4913 | executable = TRUE; | |
4914 | ||
baaff79e JJ |
4915 | last_hdr = hdr; |
4916 | /* .tbss sections effectively have zero size. */ | |
dbc88fc1 | 4917 | last_size = !IS_TBSS (hdr) ? hdr->size : 0; |
00bee008 | 4918 | hdr_index = i; |
8ded5a0f | 4919 | phdr_in_segment = FALSE; |
252b5132 RH |
4920 | } |
4921 | ||
86b2281f AM |
4922 | /* Create a final PT_LOAD program segment, but not if it's just |
4923 | for .tbss. */ | |
4924 | if (last_hdr != NULL | |
00bee008 | 4925 | && (i - hdr_index != 1 |
dbc88fc1 | 4926 | || !IS_TBSS (last_hdr))) |
8ded5a0f | 4927 | { |
00bee008 | 4928 | m = make_mapping (abfd, sections, hdr_index, i, phdr_in_segment); |
8ded5a0f AM |
4929 | if (m == NULL) |
4930 | goto error_return; | |
252b5132 | 4931 | |
8ded5a0f AM |
4932 | *pm = m; |
4933 | pm = &m->next; | |
4934 | } | |
252b5132 | 4935 | |
8ded5a0f AM |
4936 | /* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */ |
4937 | if (dynsec != NULL) | |
4938 | { | |
4939 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
4940 | if (m == NULL) | |
4941 | goto error_return; | |
4942 | *pm = m; | |
4943 | pm = &m->next; | |
4944 | } | |
252b5132 | 4945 | |
23e463ed | 4946 | /* For each batch of consecutive loadable SHT_NOTE sections, |
1c5265b5 JJ |
4947 | add a PT_NOTE segment. We don't use bfd_get_section_by_name, |
4948 | because if we link together nonloadable .note sections and | |
4949 | loadable .note sections, we will generate two .note sections | |
23e463ed | 4950 | in the output file. */ |
8ded5a0f AM |
4951 | for (s = abfd->sections; s != NULL; s = s->next) |
4952 | { | |
4953 | if ((s->flags & SEC_LOAD) != 0 | |
23e463ed | 4954 | && elf_section_type (s) == SHT_NOTE) |
8ded5a0f | 4955 | { |
1c5265b5 | 4956 | asection *s2; |
23e463ed | 4957 | unsigned int alignment_power = s->alignment_power; |
91d6fa6a NC |
4958 | |
4959 | count = 1; | |
23e463ed L |
4960 | for (s2 = s; s2->next != NULL; s2 = s2->next) |
4961 | { | |
4962 | if (s2->next->alignment_power == alignment_power | |
4963 | && (s2->next->flags & SEC_LOAD) != 0 | |
4964 | && elf_section_type (s2->next) == SHT_NOTE | |
4965 | && align_power (s2->lma + s2->size, | |
4966 | alignment_power) | |
4967 | == s2->next->lma) | |
4968 | count++; | |
4969 | else | |
4970 | break; | |
4971 | } | |
00bee008 AM |
4972 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
4973 | amt += count * sizeof (asection *); | |
a50b1753 | 4974 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
4975 | if (m == NULL) |
4976 | goto error_return; | |
4977 | m->next = NULL; | |
4978 | m->p_type = PT_NOTE; | |
1c5265b5 JJ |
4979 | m->count = count; |
4980 | while (count > 1) | |
4981 | { | |
4982 | m->sections[m->count - count--] = s; | |
4983 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
4984 | s = s->next; | |
4985 | } | |
4986 | m->sections[m->count - 1] = s; | |
4987 | BFD_ASSERT ((s->flags & SEC_THREAD_LOCAL) == 0); | |
8ded5a0f AM |
4988 | *pm = m; |
4989 | pm = &m->next; | |
4990 | } | |
4991 | if (s->flags & SEC_THREAD_LOCAL) | |
4992 | { | |
4993 | if (! tls_count) | |
4994 | first_tls = s; | |
4995 | tls_count++; | |
4996 | } | |
a91e1603 L |
4997 | if (first_mbind == NULL |
4998 | && (elf_section_flags (s) & SHF_GNU_MBIND) != 0) | |
4999 | first_mbind = s; | |
8ded5a0f | 5000 | } |
252b5132 | 5001 | |
8ded5a0f AM |
5002 | /* If there are any SHF_TLS output sections, add PT_TLS segment. */ |
5003 | if (tls_count > 0) | |
5004 | { | |
00bee008 AM |
5005 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
5006 | amt += tls_count * sizeof (asection *); | |
a50b1753 | 5007 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5008 | if (m == NULL) |
5009 | goto error_return; | |
5010 | m->next = NULL; | |
5011 | m->p_type = PT_TLS; | |
5012 | m->count = tls_count; | |
5013 | /* Mandated PF_R. */ | |
5014 | m->p_flags = PF_R; | |
5015 | m->p_flags_valid = 1; | |
d923cae0 | 5016 | s = first_tls; |
91d6fa6a | 5017 | for (i = 0; i < (unsigned int) tls_count; ++i) |
8ded5a0f | 5018 | { |
d923cae0 L |
5019 | if ((s->flags & SEC_THREAD_LOCAL) == 0) |
5020 | { | |
5021 | _bfd_error_handler | |
871b3ab2 | 5022 | (_("%pB: TLS sections are not adjacent:"), abfd); |
d923cae0 L |
5023 | s = first_tls; |
5024 | i = 0; | |
5025 | while (i < (unsigned int) tls_count) | |
5026 | { | |
5027 | if ((s->flags & SEC_THREAD_LOCAL) != 0) | |
5028 | { | |
871b3ab2 | 5029 | _bfd_error_handler (_(" TLS: %pA"), s); |
d923cae0 L |
5030 | i++; |
5031 | } | |
5032 | else | |
871b3ab2 | 5033 | _bfd_error_handler (_(" non-TLS: %pA"), s); |
d923cae0 L |
5034 | s = s->next; |
5035 | } | |
5036 | bfd_set_error (bfd_error_bad_value); | |
5037 | goto error_return; | |
5038 | } | |
5039 | m->sections[i] = s; | |
5040 | s = s->next; | |
8ded5a0f | 5041 | } |
252b5132 | 5042 | |
8ded5a0f AM |
5043 | *pm = m; |
5044 | pm = &m->next; | |
5045 | } | |
252b5132 | 5046 | |
a91e1603 L |
5047 | if (first_mbind && (abfd->flags & D_PAGED) != 0) |
5048 | for (s = first_mbind; s != NULL; s = s->next) | |
5049 | if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0 | |
5050 | && (elf_section_data (s)->this_hdr.sh_info | |
5051 | <= PT_GNU_MBIND_NUM)) | |
5052 | { | |
5053 | /* Mandated PF_R. */ | |
5054 | unsigned long p_flags = PF_R; | |
5055 | if ((s->flags & SEC_READONLY) == 0) | |
5056 | p_flags |= PF_W; | |
5057 | if ((s->flags & SEC_CODE) != 0) | |
5058 | p_flags |= PF_X; | |
5059 | ||
5060 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5061 | m = bfd_zalloc (abfd, amt); | |
5062 | if (m == NULL) | |
5063 | goto error_return; | |
5064 | m->next = NULL; | |
5065 | m->p_type = (PT_GNU_MBIND_LO | |
5066 | + elf_section_data (s)->this_hdr.sh_info); | |
5067 | m->count = 1; | |
5068 | m->p_flags_valid = 1; | |
5069 | m->sections[0] = s; | |
5070 | m->p_flags = p_flags; | |
5071 | ||
5072 | *pm = m; | |
5073 | pm = &m->next; | |
5074 | } | |
5075 | ||
0a59decb L |
5076 | s = bfd_get_section_by_name (abfd, |
5077 | NOTE_GNU_PROPERTY_SECTION_NAME); | |
5078 | if (s != NULL && s->size != 0) | |
5079 | { | |
5080 | amt = sizeof (struct elf_segment_map) + sizeof (asection *); | |
5081 | m = bfd_zalloc (abfd, amt); | |
5082 | if (m == NULL) | |
5083 | goto error_return; | |
5084 | m->next = NULL; | |
5085 | m->p_type = PT_GNU_PROPERTY; | |
5086 | m->count = 1; | |
5087 | m->p_flags_valid = 1; | |
5088 | m->sections[0] = s; | |
5089 | m->p_flags = PF_R; | |
5090 | *pm = m; | |
5091 | pm = &m->next; | |
5092 | } | |
5093 | ||
8ded5a0f AM |
5094 | /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME |
5095 | segment. */ | |
12bd6957 | 5096 | eh_frame_hdr = elf_eh_frame_hdr (abfd); |
8ded5a0f AM |
5097 | if (eh_frame_hdr != NULL |
5098 | && (eh_frame_hdr->output_section->flags & SEC_LOAD) != 0) | |
252b5132 | 5099 | { |
dc810e39 | 5100 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5101 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
252b5132 RH |
5102 | if (m == NULL) |
5103 | goto error_return; | |
5104 | m->next = NULL; | |
8ded5a0f | 5105 | m->p_type = PT_GNU_EH_FRAME; |
252b5132 | 5106 | m->count = 1; |
8ded5a0f | 5107 | m->sections[0] = eh_frame_hdr->output_section; |
252b5132 RH |
5108 | |
5109 | *pm = m; | |
5110 | pm = &m->next; | |
5111 | } | |
13ae64f3 | 5112 | |
12bd6957 | 5113 | if (elf_stack_flags (abfd)) |
13ae64f3 | 5114 | { |
8ded5a0f | 5115 | amt = sizeof (struct elf_segment_map); |
a50b1753 | 5116 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
8ded5a0f AM |
5117 | if (m == NULL) |
5118 | goto error_return; | |
5119 | m->next = NULL; | |
2b05f1b7 | 5120 | m->p_type = PT_GNU_STACK; |
12bd6957 | 5121 | m->p_flags = elf_stack_flags (abfd); |
04c3a755 | 5122 | m->p_align = bed->stack_align; |
8ded5a0f | 5123 | m->p_flags_valid = 1; |
04c3a755 NS |
5124 | m->p_align_valid = m->p_align != 0; |
5125 | if (info->stacksize > 0) | |
5126 | { | |
5127 | m->p_size = info->stacksize; | |
5128 | m->p_size_valid = 1; | |
5129 | } | |
252b5132 | 5130 | |
8ded5a0f AM |
5131 | *pm = m; |
5132 | pm = &m->next; | |
5133 | } | |
65765700 | 5134 | |
ceae84aa | 5135 | if (info != NULL && info->relro) |
8ded5a0f | 5136 | { |
f210dcff L |
5137 | for (m = mfirst; m != NULL; m = m->next) |
5138 | { | |
3832a4d8 AM |
5139 | if (m->p_type == PT_LOAD |
5140 | && m->count != 0 | |
5141 | && m->sections[0]->vma >= info->relro_start | |
5142 | && m->sections[0]->vma < info->relro_end) | |
f210dcff | 5143 | { |
3832a4d8 AM |
5144 | i = m->count; |
5145 | while (--i != (unsigned) -1) | |
5146 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5147 | == (SEC_LOAD | SEC_HAS_CONTENTS)) | |
5148 | break; | |
5149 | ||
43a8475c | 5150 | if (i != (unsigned) -1) |
f210dcff L |
5151 | break; |
5152 | } | |
be01b344 | 5153 | } |
f210dcff L |
5154 | |
5155 | /* Make a PT_GNU_RELRO segment only when it isn't empty. */ | |
5156 | if (m != NULL) | |
5157 | { | |
5158 | amt = sizeof (struct elf_segment_map); | |
a50b1753 | 5159 | m = (struct elf_segment_map *) bfd_zalloc (abfd, amt); |
f210dcff L |
5160 | if (m == NULL) |
5161 | goto error_return; | |
5162 | m->next = NULL; | |
5163 | m->p_type = PT_GNU_RELRO; | |
f210dcff L |
5164 | *pm = m; |
5165 | pm = &m->next; | |
5166 | } | |
8ded5a0f | 5167 | } |
9ee5e499 | 5168 | |
8ded5a0f | 5169 | free (sections); |
12bd6957 | 5170 | elf_seg_map (abfd) = mfirst; |
9ee5e499 JJ |
5171 | } |
5172 | ||
3dea8fca | 5173 | if (!elf_modify_segment_map (abfd, info, no_user_phdrs)) |
8ded5a0f | 5174 | return FALSE; |
8c37241b | 5175 | |
12bd6957 | 5176 | for (count = 0, m = elf_seg_map (abfd); m != NULL; m = m->next) |
8ded5a0f | 5177 | ++count; |
12bd6957 | 5178 | elf_program_header_size (abfd) = count * bed->s->sizeof_phdr; |
252b5132 | 5179 | |
b34976b6 | 5180 | return TRUE; |
252b5132 RH |
5181 | |
5182 | error_return: | |
5183 | if (sections != NULL) | |
5184 | free (sections); | |
b34976b6 | 5185 | return FALSE; |
252b5132 RH |
5186 | } |
5187 | ||
5188 | /* Sort sections by address. */ | |
5189 | ||
5190 | static int | |
217aa764 | 5191 | elf_sort_sections (const void *arg1, const void *arg2) |
252b5132 RH |
5192 | { |
5193 | const asection *sec1 = *(const asection **) arg1; | |
5194 | const asection *sec2 = *(const asection **) arg2; | |
eecdbe52 | 5195 | bfd_size_type size1, size2; |
252b5132 RH |
5196 | |
5197 | /* Sort by LMA first, since this is the address used to | |
5198 | place the section into a segment. */ | |
5199 | if (sec1->lma < sec2->lma) | |
5200 | return -1; | |
5201 | else if (sec1->lma > sec2->lma) | |
5202 | return 1; | |
5203 | ||
5204 | /* Then sort by VMA. Normally the LMA and the VMA will be | |
5205 | the same, and this will do nothing. */ | |
5206 | if (sec1->vma < sec2->vma) | |
5207 | return -1; | |
5208 | else if (sec1->vma > sec2->vma) | |
5209 | return 1; | |
5210 | ||
5211 | /* Put !SEC_LOAD sections after SEC_LOAD ones. */ | |
5212 | ||
07c6e936 | 5213 | #define TOEND(x) (((x)->flags & (SEC_LOAD | SEC_THREAD_LOCAL)) == 0) |
252b5132 RH |
5214 | |
5215 | if (TOEND (sec1)) | |
5216 | { | |
5217 | if (TOEND (sec2)) | |
00a7cdc5 | 5218 | { |
67ce483b | 5219 | /* If the indices are the same, do not return 0 |
00a7cdc5 NC |
5220 | here, but continue to try the next comparison. */ |
5221 | if (sec1->target_index - sec2->target_index != 0) | |
5222 | return sec1->target_index - sec2->target_index; | |
5223 | } | |
252b5132 RH |
5224 | else |
5225 | return 1; | |
5226 | } | |
00a7cdc5 | 5227 | else if (TOEND (sec2)) |
252b5132 RH |
5228 | return -1; |
5229 | ||
5230 | #undef TOEND | |
5231 | ||
00a7cdc5 NC |
5232 | /* Sort by size, to put zero sized sections |
5233 | before others at the same address. */ | |
252b5132 | 5234 | |
eea6121a AM |
5235 | size1 = (sec1->flags & SEC_LOAD) ? sec1->size : 0; |
5236 | size2 = (sec2->flags & SEC_LOAD) ? sec2->size : 0; | |
eecdbe52 JJ |
5237 | |
5238 | if (size1 < size2) | |
252b5132 | 5239 | return -1; |
eecdbe52 | 5240 | if (size1 > size2) |
252b5132 RH |
5241 | return 1; |
5242 | ||
5243 | return sec1->target_index - sec2->target_index; | |
5244 | } | |
5245 | ||
340b6d91 AC |
5246 | /* Ian Lance Taylor writes: |
5247 | ||
5248 | We shouldn't be using % with a negative signed number. That's just | |
5249 | not good. We have to make sure either that the number is not | |
5250 | negative, or that the number has an unsigned type. When the types | |
5251 | are all the same size they wind up as unsigned. When file_ptr is a | |
5252 | larger signed type, the arithmetic winds up as signed long long, | |
5253 | which is wrong. | |
5254 | ||
5255 | What we're trying to say here is something like ``increase OFF by | |
5256 | the least amount that will cause it to be equal to the VMA modulo | |
5257 | the page size.'' */ | |
5258 | /* In other words, something like: | |
5259 | ||
5260 | vma_offset = m->sections[0]->vma % bed->maxpagesize; | |
5261 | off_offset = off % bed->maxpagesize; | |
5262 | if (vma_offset < off_offset) | |
5263 | adjustment = vma_offset + bed->maxpagesize - off_offset; | |
5264 | else | |
5265 | adjustment = vma_offset - off_offset; | |
08a40648 | 5266 | |
de194d85 | 5267 | which can be collapsed into the expression below. */ |
340b6d91 AC |
5268 | |
5269 | static file_ptr | |
5270 | vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize) | |
5271 | { | |
dc9155b2 NC |
5272 | /* PR binutils/16199: Handle an alignment of zero. */ |
5273 | if (maxpagesize == 0) | |
5274 | maxpagesize = 1; | |
340b6d91 AC |
5275 | return ((vma - off) % maxpagesize); |
5276 | } | |
5277 | ||
6d33f217 L |
5278 | static void |
5279 | print_segment_map (const struct elf_segment_map *m) | |
5280 | { | |
5281 | unsigned int j; | |
5282 | const char *pt = get_segment_type (m->p_type); | |
5283 | char buf[32]; | |
5284 | ||
5285 | if (pt == NULL) | |
5286 | { | |
5287 | if (m->p_type >= PT_LOPROC && m->p_type <= PT_HIPROC) | |
5288 | sprintf (buf, "LOPROC+%7.7x", | |
5289 | (unsigned int) (m->p_type - PT_LOPROC)); | |
5290 | else if (m->p_type >= PT_LOOS && m->p_type <= PT_HIOS) | |
5291 | sprintf (buf, "LOOS+%7.7x", | |
5292 | (unsigned int) (m->p_type - PT_LOOS)); | |
5293 | else | |
5294 | snprintf (buf, sizeof (buf), "%8.8x", | |
5295 | (unsigned int) m->p_type); | |
5296 | pt = buf; | |
5297 | } | |
4a97a0e5 | 5298 | fflush (stdout); |
6d33f217 L |
5299 | fprintf (stderr, "%s:", pt); |
5300 | for (j = 0; j < m->count; j++) | |
5301 | fprintf (stderr, " %s", m->sections [j]->name); | |
5302 | putc ('\n',stderr); | |
4a97a0e5 | 5303 | fflush (stderr); |
6d33f217 L |
5304 | } |
5305 | ||
32812159 AM |
5306 | static bfd_boolean |
5307 | write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len) | |
5308 | { | |
5309 | void *buf; | |
5310 | bfd_boolean ret; | |
5311 | ||
5312 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5313 | return FALSE; | |
5314 | buf = bfd_zmalloc (len); | |
5315 | if (buf == NULL) | |
5316 | return FALSE; | |
5317 | ret = bfd_bwrite (buf, len, abfd) == len; | |
5318 | free (buf); | |
5319 | return ret; | |
5320 | } | |
5321 | ||
252b5132 RH |
5322 | /* Assign file positions to the sections based on the mapping from |
5323 | sections to segments. This function also sets up some fields in | |
f3520d2f | 5324 | the file header. */ |
252b5132 | 5325 | |
b34976b6 | 5326 | static bfd_boolean |
f3520d2f AM |
5327 | assign_file_positions_for_load_sections (bfd *abfd, |
5328 | struct bfd_link_info *link_info) | |
252b5132 RH |
5329 | { |
5330 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
252b5132 | 5331 | struct elf_segment_map *m; |
252b5132 | 5332 | Elf_Internal_Phdr *phdrs; |
252b5132 | 5333 | Elf_Internal_Phdr *p; |
02bf8d82 | 5334 | file_ptr off; |
3f570048 | 5335 | bfd_size_type maxpagesize; |
a8c75b76 | 5336 | unsigned int pt_load_count = 0; |
f3520d2f | 5337 | unsigned int alloc; |
0920dee7 | 5338 | unsigned int i, j; |
2b0bc088 | 5339 | bfd_vma header_pad = 0; |
252b5132 | 5340 | |
e36284ab | 5341 | if (link_info == NULL |
ceae84aa | 5342 | && !_bfd_elf_map_sections_to_segments (abfd, link_info)) |
8ded5a0f | 5343 | return FALSE; |
252b5132 | 5344 | |
8ded5a0f | 5345 | alloc = 0; |
12bd6957 | 5346 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
2b0bc088 NC |
5347 | { |
5348 | ++alloc; | |
5349 | if (m->header_size) | |
5350 | header_pad = m->header_size; | |
5351 | } | |
252b5132 | 5352 | |
82f2dbf7 NC |
5353 | if (alloc) |
5354 | { | |
5355 | elf_elfheader (abfd)->e_phoff = bed->s->sizeof_ehdr; | |
5356 | elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr; | |
5357 | } | |
5358 | else | |
5359 | { | |
5360 | /* PR binutils/12467. */ | |
5361 | elf_elfheader (abfd)->e_phoff = 0; | |
5362 | elf_elfheader (abfd)->e_phentsize = 0; | |
5363 | } | |
d324f6d6 | 5364 | |
8ded5a0f | 5365 | elf_elfheader (abfd)->e_phnum = alloc; |
252b5132 | 5366 | |
12bd6957 AM |
5367 | if (elf_program_header_size (abfd) == (bfd_size_type) -1) |
5368 | elf_program_header_size (abfd) = alloc * bed->s->sizeof_phdr; | |
8ded5a0f | 5369 | else |
12bd6957 | 5370 | BFD_ASSERT (elf_program_header_size (abfd) |
59e0647f | 5371 | >= alloc * bed->s->sizeof_phdr); |
252b5132 RH |
5372 | |
5373 | if (alloc == 0) | |
f3520d2f | 5374 | { |
12bd6957 | 5375 | elf_next_file_pos (abfd) = bed->s->sizeof_ehdr; |
8ded5a0f | 5376 | return TRUE; |
f3520d2f | 5377 | } |
252b5132 | 5378 | |
12bd6957 | 5379 | /* We're writing the size in elf_program_header_size (abfd), |
57268894 HPN |
5380 | see assign_file_positions_except_relocs, so make sure we have |
5381 | that amount allocated, with trailing space cleared. | |
12bd6957 AM |
5382 | The variable alloc contains the computed need, while |
5383 | elf_program_header_size (abfd) contains the size used for the | |
57268894 HPN |
5384 | layout. |
5385 | See ld/emultempl/elf-generic.em:gld${EMULATION_NAME}_map_segments | |
5386 | where the layout is forced to according to a larger size in the | |
5387 | last iterations for the testcase ld-elf/header. */ | |
12bd6957 | 5388 | BFD_ASSERT (elf_program_header_size (abfd) % bed->s->sizeof_phdr |
57268894 | 5389 | == 0); |
a50b1753 NC |
5390 | phdrs = (Elf_Internal_Phdr *) |
5391 | bfd_zalloc2 (abfd, | |
07d6d2b8 AM |
5392 | (elf_program_header_size (abfd) / bed->s->sizeof_phdr), |
5393 | sizeof (Elf_Internal_Phdr)); | |
f3520d2f | 5394 | elf_tdata (abfd)->phdr = phdrs; |
252b5132 | 5395 | if (phdrs == NULL) |
b34976b6 | 5396 | return FALSE; |
252b5132 | 5397 | |
3f570048 AM |
5398 | maxpagesize = 1; |
5399 | if ((abfd->flags & D_PAGED) != 0) | |
5400 | maxpagesize = bed->maxpagesize; | |
5401 | ||
252b5132 RH |
5402 | off = bed->s->sizeof_ehdr; |
5403 | off += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5404 | if (header_pad < (bfd_vma) off) |
5405 | header_pad = 0; | |
5406 | else | |
5407 | header_pad -= off; | |
5408 | off += header_pad; | |
252b5132 | 5409 | |
12bd6957 | 5410 | for (m = elf_seg_map (abfd), p = phdrs, j = 0; |
252b5132 | 5411 | m != NULL; |
0920dee7 | 5412 | m = m->next, p++, j++) |
252b5132 | 5413 | { |
252b5132 | 5414 | asection **secpp; |
bf988460 AM |
5415 | bfd_vma off_adjust; |
5416 | bfd_boolean no_contents; | |
252b5132 RH |
5417 | |
5418 | /* If elf_segment_map is not from map_sections_to_segments, the | |
08a40648 | 5419 | sections may not be correctly ordered. NOTE: sorting should |
52e9b619 MS |
5420 | not be done to the PT_NOTE section of a corefile, which may |
5421 | contain several pseudo-sections artificially created by bfd. | |
5422 | Sorting these pseudo-sections breaks things badly. */ | |
47d9a591 AM |
5423 | if (m->count > 1 |
5424 | && !(elf_elfheader (abfd)->e_type == ET_CORE | |
52e9b619 | 5425 | && m->p_type == PT_NOTE)) |
252b5132 RH |
5426 | qsort (m->sections, (size_t) m->count, sizeof (asection *), |
5427 | elf_sort_sections); | |
5428 | ||
b301b248 AM |
5429 | /* An ELF segment (described by Elf_Internal_Phdr) may contain a |
5430 | number of sections with contents contributing to both p_filesz | |
5431 | and p_memsz, followed by a number of sections with no contents | |
5432 | that just contribute to p_memsz. In this loop, OFF tracks next | |
02bf8d82 | 5433 | available file offset for PT_LOAD and PT_NOTE segments. */ |
252b5132 | 5434 | p->p_type = m->p_type; |
28a7f3e7 | 5435 | p->p_flags = m->p_flags; |
252b5132 | 5436 | |
3f570048 | 5437 | if (m->count == 0) |
5d695627 | 5438 | p->p_vaddr = m->p_vaddr_offset; |
3f570048 | 5439 | else |
5d695627 | 5440 | p->p_vaddr = m->sections[0]->vma + m->p_vaddr_offset; |
3f570048 AM |
5441 | |
5442 | if (m->p_paddr_valid) | |
5443 | p->p_paddr = m->p_paddr; | |
5444 | else if (m->count == 0) | |
5445 | p->p_paddr = 0; | |
5446 | else | |
5d695627 | 5447 | p->p_paddr = m->sections[0]->lma + m->p_vaddr_offset; |
3f570048 AM |
5448 | |
5449 | if (p->p_type == PT_LOAD | |
5450 | && (abfd->flags & D_PAGED) != 0) | |
5451 | { | |
5452 | /* p_align in demand paged PT_LOAD segments effectively stores | |
5453 | the maximum page size. When copying an executable with | |
5454 | objcopy, we set m->p_align from the input file. Use this | |
5455 | value for maxpagesize rather than bed->maxpagesize, which | |
5456 | may be different. Note that we use maxpagesize for PT_TLS | |
5457 | segment alignment later in this function, so we are relying | |
5458 | on at least one PT_LOAD segment appearing before a PT_TLS | |
5459 | segment. */ | |
5460 | if (m->p_align_valid) | |
5461 | maxpagesize = m->p_align; | |
5462 | ||
5463 | p->p_align = maxpagesize; | |
a8c75b76 | 5464 | pt_load_count += 1; |
3f570048 | 5465 | } |
3271a814 NS |
5466 | else if (m->p_align_valid) |
5467 | p->p_align = m->p_align; | |
e970b90a DJ |
5468 | else if (m->count == 0) |
5469 | p->p_align = 1 << bed->s->log_file_align; | |
3f570048 AM |
5470 | else |
5471 | p->p_align = 0; | |
5472 | ||
bf988460 AM |
5473 | no_contents = FALSE; |
5474 | off_adjust = 0; | |
252b5132 | 5475 | if (p->p_type == PT_LOAD |
b301b248 | 5476 | && m->count > 0) |
252b5132 | 5477 | { |
b301b248 | 5478 | bfd_size_type align; |
a49e53ed | 5479 | unsigned int align_power = 0; |
b301b248 | 5480 | |
3271a814 NS |
5481 | if (m->p_align_valid) |
5482 | align = p->p_align; | |
5483 | else | |
252b5132 | 5484 | { |
3271a814 NS |
5485 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5486 | { | |
5487 | unsigned int secalign; | |
08a40648 | 5488 | |
3271a814 NS |
5489 | secalign = bfd_get_section_alignment (abfd, *secpp); |
5490 | if (secalign > align_power) | |
5491 | align_power = secalign; | |
5492 | } | |
5493 | align = (bfd_size_type) 1 << align_power; | |
5494 | if (align < maxpagesize) | |
5495 | align = maxpagesize; | |
b301b248 | 5496 | } |
252b5132 | 5497 | |
02bf8d82 AM |
5498 | for (i = 0; i < m->count; i++) |
5499 | if ((m->sections[i]->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
5500 | /* If we aren't making room for this section, then | |
5501 | it must be SHT_NOBITS regardless of what we've | |
5502 | set via struct bfd_elf_special_section. */ | |
5503 | elf_section_type (m->sections[i]) = SHT_NOBITS; | |
5504 | ||
bf988460 | 5505 | /* Find out whether this segment contains any loadable |
aea274d3 AM |
5506 | sections. */ |
5507 | no_contents = TRUE; | |
5508 | for (i = 0; i < m->count; i++) | |
5509 | if (elf_section_type (m->sections[i]) != SHT_NOBITS) | |
5510 | { | |
5511 | no_contents = FALSE; | |
5512 | break; | |
5513 | } | |
bf988460 | 5514 | |
85cfcbfb | 5515 | off_adjust = vma_page_aligned_bias (p->p_vaddr, off, align); |
a8c75b76 AM |
5516 | |
5517 | /* Broken hardware and/or kernel require that files do not | |
5518 | map the same page with different permissions on some hppa | |
5519 | processors. */ | |
5520 | if (pt_load_count > 1 | |
5521 | && bed->no_page_alias | |
5522 | && (off & (maxpagesize - 1)) != 0 | |
5523 | && (off & -maxpagesize) == ((off + off_adjust) & -maxpagesize)) | |
5524 | off_adjust += maxpagesize; | |
bf988460 AM |
5525 | off += off_adjust; |
5526 | if (no_contents) | |
5527 | { | |
5528 | /* We shouldn't need to align the segment on disk since | |
5529 | the segment doesn't need file space, but the gABI | |
5530 | arguably requires the alignment and glibc ld.so | |
5531 | checks it. So to comply with the alignment | |
5532 | requirement but not waste file space, we adjust | |
5533 | p_offset for just this segment. (OFF_ADJUST is | |
5534 | subtracted from OFF later.) This may put p_offset | |
5535 | past the end of file, but that shouldn't matter. */ | |
5536 | } | |
5537 | else | |
5538 | off_adjust = 0; | |
252b5132 | 5539 | } |
b1a6d0b1 NC |
5540 | /* Make sure the .dynamic section is the first section in the |
5541 | PT_DYNAMIC segment. */ | |
5542 | else if (p->p_type == PT_DYNAMIC | |
5543 | && m->count > 1 | |
5544 | && strcmp (m->sections[0]->name, ".dynamic") != 0) | |
5545 | { | |
5546 | _bfd_error_handler | |
871b3ab2 | 5547 | (_("%pB: The first section in the PT_DYNAMIC segment" |
63a5468a | 5548 | " is not the .dynamic section"), |
b301b248 | 5549 | abfd); |
b1a6d0b1 NC |
5550 | bfd_set_error (bfd_error_bad_value); |
5551 | return FALSE; | |
5552 | } | |
3f001e84 JK |
5553 | /* Set the note section type to SHT_NOTE. */ |
5554 | else if (p->p_type == PT_NOTE) | |
5555 | for (i = 0; i < m->count; i++) | |
5556 | elf_section_type (m->sections[i]) = SHT_NOTE; | |
252b5132 | 5557 | |
252b5132 RH |
5558 | p->p_offset = 0; |
5559 | p->p_filesz = 0; | |
5560 | p->p_memsz = 0; | |
5561 | ||
5562 | if (m->includes_filehdr) | |
5563 | { | |
bf988460 | 5564 | if (!m->p_flags_valid) |
252b5132 | 5565 | p->p_flags |= PF_R; |
252b5132 RH |
5566 | p->p_filesz = bed->s->sizeof_ehdr; |
5567 | p->p_memsz = bed->s->sizeof_ehdr; | |
5568 | if (m->count > 0) | |
5569 | { | |
9ab82472 L |
5570 | if (p->p_vaddr < (bfd_vma) off |
5571 | || (!m->p_paddr_valid | |
5572 | && p->p_paddr < (bfd_vma) off)) | |
252b5132 | 5573 | { |
4eca0228 | 5574 | _bfd_error_handler |
9793eb77 | 5575 | (_("%pB: not enough room for program headers," |
63a5468a | 5576 | " try linking with -N"), |
b301b248 | 5577 | abfd); |
252b5132 | 5578 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 5579 | return FALSE; |
252b5132 RH |
5580 | } |
5581 | ||
5582 | p->p_vaddr -= off; | |
bf988460 | 5583 | if (!m->p_paddr_valid) |
252b5132 RH |
5584 | p->p_paddr -= off; |
5585 | } | |
252b5132 RH |
5586 | } |
5587 | ||
5588 | if (m->includes_phdrs) | |
5589 | { | |
bf988460 | 5590 | if (!m->p_flags_valid) |
252b5132 RH |
5591 | p->p_flags |= PF_R; |
5592 | ||
f3520d2f | 5593 | if (!m->includes_filehdr) |
252b5132 RH |
5594 | { |
5595 | p->p_offset = bed->s->sizeof_ehdr; | |
5596 | ||
5597 | if (m->count > 0) | |
5598 | { | |
252b5132 | 5599 | p->p_vaddr -= off - p->p_offset; |
bf988460 | 5600 | if (!m->p_paddr_valid) |
252b5132 RH |
5601 | p->p_paddr -= off - p->p_offset; |
5602 | } | |
252b5132 RH |
5603 | } |
5604 | ||
5605 | p->p_filesz += alloc * bed->s->sizeof_phdr; | |
5606 | p->p_memsz += alloc * bed->s->sizeof_phdr; | |
2b0bc088 NC |
5607 | if (m->count) |
5608 | { | |
5609 | p->p_filesz += header_pad; | |
5610 | p->p_memsz += header_pad; | |
5611 | } | |
252b5132 RH |
5612 | } |
5613 | ||
5614 | if (p->p_type == PT_LOAD | |
5615 | || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) | |
5616 | { | |
bf988460 | 5617 | if (!m->includes_filehdr && !m->includes_phdrs) |
02bf8d82 | 5618 | p->p_offset = off; |
252b5132 RH |
5619 | else |
5620 | { | |
5621 | file_ptr adjust; | |
5622 | ||
5623 | adjust = off - (p->p_offset + p->p_filesz); | |
bf988460 AM |
5624 | if (!no_contents) |
5625 | p->p_filesz += adjust; | |
252b5132 RH |
5626 | p->p_memsz += adjust; |
5627 | } | |
5628 | } | |
5629 | ||
1ea63fd2 AM |
5630 | /* Set up p_filesz, p_memsz, p_align and p_flags from the section |
5631 | maps. Set filepos for sections in PT_LOAD segments, and in | |
5632 | core files, for sections in PT_NOTE segments. | |
5633 | assign_file_positions_for_non_load_sections will set filepos | |
5634 | for other sections and update p_filesz for other segments. */ | |
252b5132 RH |
5635 | for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) |
5636 | { | |
5637 | asection *sec; | |
252b5132 | 5638 | bfd_size_type align; |
627b32bc | 5639 | Elf_Internal_Shdr *this_hdr; |
252b5132 RH |
5640 | |
5641 | sec = *secpp; | |
02bf8d82 | 5642 | this_hdr = &elf_section_data (sec)->this_hdr; |
3f570048 | 5643 | align = (bfd_size_type) 1 << bfd_get_section_alignment (abfd, sec); |
252b5132 | 5644 | |
88967714 AM |
5645 | if ((p->p_type == PT_LOAD |
5646 | || p->p_type == PT_TLS) | |
5647 | && (this_hdr->sh_type != SHT_NOBITS | |
5648 | || ((this_hdr->sh_flags & SHF_ALLOC) != 0 | |
5649 | && ((this_hdr->sh_flags & SHF_TLS) == 0 | |
5650 | || p->p_type == PT_TLS)))) | |
252b5132 | 5651 | { |
b5599592 AM |
5652 | bfd_vma p_start = p->p_paddr; |
5653 | bfd_vma p_end = p_start + p->p_memsz; | |
5654 | bfd_vma s_start = sec->lma; | |
5655 | bfd_vma adjust = s_start - p_end; | |
252b5132 | 5656 | |
a2d1e028 L |
5657 | if (adjust != 0 |
5658 | && (s_start < p_end | |
5659 | || p_end < p_start)) | |
252b5132 | 5660 | { |
4eca0228 | 5661 | _bfd_error_handler |
695344c0 | 5662 | /* xgettext:c-format */ |
2dcf00ce AM |
5663 | (_("%pB: section %pA lma %#" PRIx64 " adjusted to %#" PRIx64), |
5664 | abfd, sec, (uint64_t) s_start, (uint64_t) p_end); | |
88967714 | 5665 | adjust = 0; |
b5599592 | 5666 | sec->lma = p_end; |
1cfb7d1e | 5667 | } |
3ac9b6c9 | 5668 | p->p_memsz += adjust; |
1cfb7d1e | 5669 | |
88967714 AM |
5670 | if (this_hdr->sh_type != SHT_NOBITS) |
5671 | { | |
32812159 AM |
5672 | if (p->p_filesz + adjust < p->p_memsz) |
5673 | { | |
5674 | /* We have a PROGBITS section following NOBITS ones. | |
07d6d2b8 | 5675 | Allocate file space for the NOBITS section(s) and |
32812159 AM |
5676 | zero it. */ |
5677 | adjust = p->p_memsz - p->p_filesz; | |
5678 | if (!write_zeros (abfd, off, adjust)) | |
5679 | return FALSE; | |
5680 | } | |
88967714 AM |
5681 | off += adjust; |
5682 | p->p_filesz += adjust; | |
252b5132 | 5683 | } |
252b5132 RH |
5684 | } |
5685 | ||
5686 | if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) | |
5687 | { | |
b301b248 AM |
5688 | /* The section at i == 0 is the one that actually contains |
5689 | everything. */ | |
4a938328 MS |
5690 | if (i == 0) |
5691 | { | |
627b32bc | 5692 | this_hdr->sh_offset = sec->filepos = off; |
6a3cd2b4 AM |
5693 | off += this_hdr->sh_size; |
5694 | p->p_filesz = this_hdr->sh_size; | |
b301b248 AM |
5695 | p->p_memsz = 0; |
5696 | p->p_align = 1; | |
252b5132 | 5697 | } |
4a938328 | 5698 | else |
252b5132 | 5699 | { |
b301b248 | 5700 | /* The rest are fake sections that shouldn't be written. */ |
252b5132 | 5701 | sec->filepos = 0; |
eea6121a | 5702 | sec->size = 0; |
b301b248 AM |
5703 | sec->flags = 0; |
5704 | continue; | |
252b5132 | 5705 | } |
252b5132 RH |
5706 | } |
5707 | else | |
5708 | { | |
1e951488 | 5709 | if (p->p_type == PT_LOAD) |
b301b248 | 5710 | { |
1e951488 AM |
5711 | this_hdr->sh_offset = sec->filepos = off; |
5712 | if (this_hdr->sh_type != SHT_NOBITS) | |
5713 | off += this_hdr->sh_size; | |
5714 | } | |
5715 | else if (this_hdr->sh_type == SHT_NOBITS | |
5716 | && (this_hdr->sh_flags & SHF_TLS) != 0 | |
5717 | && this_hdr->sh_offset == 0) | |
5718 | { | |
5719 | /* This is a .tbss section that didn't get a PT_LOAD. | |
5720 | (See _bfd_elf_map_sections_to_segments "Create a | |
5721 | final PT_LOAD".) Set sh_offset to the value it | |
5722 | would have if we had created a zero p_filesz and | |
5723 | p_memsz PT_LOAD header for the section. This | |
5724 | also makes the PT_TLS header have the same | |
5725 | p_offset value. */ | |
5726 | bfd_vma adjust = vma_page_aligned_bias (this_hdr->sh_addr, | |
5727 | off, align); | |
5728 | this_hdr->sh_offset = sec->filepos = off + adjust; | |
b301b248 | 5729 | } |
252b5132 | 5730 | |
02bf8d82 | 5731 | if (this_hdr->sh_type != SHT_NOBITS) |
b301b248 | 5732 | { |
6a3cd2b4 | 5733 | p->p_filesz += this_hdr->sh_size; |
02bf8d82 AM |
5734 | /* A load section without SHF_ALLOC is something like |
5735 | a note section in a PT_NOTE segment. These take | |
5736 | file space but are not loaded into memory. */ | |
5737 | if ((this_hdr->sh_flags & SHF_ALLOC) != 0) | |
6a3cd2b4 | 5738 | p->p_memsz += this_hdr->sh_size; |
b301b248 | 5739 | } |
6a3cd2b4 | 5740 | else if ((this_hdr->sh_flags & SHF_ALLOC) != 0) |
13ae64f3 | 5741 | { |
6a3cd2b4 AM |
5742 | if (p->p_type == PT_TLS) |
5743 | p->p_memsz += this_hdr->sh_size; | |
5744 | ||
5745 | /* .tbss is special. It doesn't contribute to p_memsz of | |
5746 | normal segments. */ | |
5747 | else if ((this_hdr->sh_flags & SHF_TLS) == 0) | |
5748 | p->p_memsz += this_hdr->sh_size; | |
13ae64f3 JJ |
5749 | } |
5750 | ||
b10a8ae0 L |
5751 | if (align > p->p_align |
5752 | && !m->p_align_valid | |
5753 | && (p->p_type != PT_LOAD | |
5754 | || (abfd->flags & D_PAGED) == 0)) | |
252b5132 RH |
5755 | p->p_align = align; |
5756 | } | |
5757 | ||
bf988460 | 5758 | if (!m->p_flags_valid) |
252b5132 RH |
5759 | { |
5760 | p->p_flags |= PF_R; | |
02bf8d82 | 5761 | if ((this_hdr->sh_flags & SHF_EXECINSTR) != 0) |
252b5132 | 5762 | p->p_flags |= PF_X; |
02bf8d82 | 5763 | if ((this_hdr->sh_flags & SHF_WRITE) != 0) |
252b5132 RH |
5764 | p->p_flags |= PF_W; |
5765 | } | |
5766 | } | |
43a8475c | 5767 | |
bf988460 | 5768 | off -= off_adjust; |
0920dee7 | 5769 | |
7c928300 AM |
5770 | /* Check that all sections are in a PT_LOAD segment. |
5771 | Don't check funky gdb generated core files. */ | |
5772 | if (p->p_type == PT_LOAD && bfd_get_format (abfd) != bfd_core) | |
9a83a553 AM |
5773 | { |
5774 | bfd_boolean check_vma = TRUE; | |
5775 | ||
5776 | for (i = 1; i < m->count; i++) | |
5777 | if (m->sections[i]->vma == m->sections[i - 1]->vma | |
5778 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i]) | |
5779 | ->this_hdr), p) != 0 | |
5780 | && ELF_SECTION_SIZE (&(elf_section_data (m->sections[i - 1]) | |
5781 | ->this_hdr), p) != 0) | |
0920dee7 | 5782 | { |
9a83a553 AM |
5783 | /* Looks like we have overlays packed into the segment. */ |
5784 | check_vma = FALSE; | |
5785 | break; | |
0920dee7 | 5786 | } |
9a83a553 AM |
5787 | |
5788 | for (i = 0; i < m->count; i++) | |
5789 | { | |
5790 | Elf_Internal_Shdr *this_hdr; | |
5791 | asection *sec; | |
5792 | ||
5793 | sec = m->sections[i]; | |
5794 | this_hdr = &(elf_section_data(sec)->this_hdr); | |
86b2281f AM |
5795 | if (!ELF_SECTION_IN_SEGMENT_1 (this_hdr, p, check_vma, 0) |
5796 | && !ELF_TBSS_SPECIAL (this_hdr, p)) | |
9a83a553 | 5797 | { |
4eca0228 | 5798 | _bfd_error_handler |
695344c0 | 5799 | /* xgettext:c-format */ |
871b3ab2 | 5800 | (_("%pB: section `%pA' can't be allocated in segment %d"), |
9a83a553 AM |
5801 | abfd, sec, j); |
5802 | print_segment_map (m); | |
5803 | } | |
5804 | } | |
5805 | } | |
252b5132 RH |
5806 | } |
5807 | ||
12bd6957 | 5808 | elf_next_file_pos (abfd) = off; |
f3520d2f AM |
5809 | return TRUE; |
5810 | } | |
5811 | ||
5812 | /* Assign file positions for the other sections. */ | |
5813 | ||
5814 | static bfd_boolean | |
5815 | assign_file_positions_for_non_load_sections (bfd *abfd, | |
5816 | struct bfd_link_info *link_info) | |
5817 | { | |
5818 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
5819 | Elf_Internal_Shdr **i_shdrpp; | |
e06efbf1 | 5820 | Elf_Internal_Shdr **hdrpp, **end_hdrpp; |
f3520d2f AM |
5821 | Elf_Internal_Phdr *phdrs; |
5822 | Elf_Internal_Phdr *p; | |
5823 | struct elf_segment_map *m; | |
62655c7b | 5824 | struct elf_segment_map *hdrs_segment; |
f3520d2f AM |
5825 | bfd_vma filehdr_vaddr, filehdr_paddr; |
5826 | bfd_vma phdrs_vaddr, phdrs_paddr; | |
5827 | file_ptr off; | |
f3520d2f AM |
5828 | unsigned int count; |
5829 | ||
5c182d5f | 5830 | i_shdrpp = elf_elfsections (abfd); |
e06efbf1 | 5831 | end_hdrpp = i_shdrpp + elf_numsections (abfd); |
12bd6957 | 5832 | off = elf_next_file_pos (abfd); |
e06efbf1 | 5833 | for (hdrpp = i_shdrpp + 1; hdrpp < end_hdrpp; hdrpp++) |
5c182d5f | 5834 | { |
5c182d5f AM |
5835 | Elf_Internal_Shdr *hdr; |
5836 | ||
5837 | hdr = *hdrpp; | |
5838 | if (hdr->bfd_section != NULL | |
252e386e AM |
5839 | && (hdr->bfd_section->filepos != 0 |
5840 | || (hdr->sh_type == SHT_NOBITS | |
5841 | && hdr->contents == NULL))) | |
627b32bc | 5842 | BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); |
5c182d5f AM |
5843 | else if ((hdr->sh_flags & SHF_ALLOC) != 0) |
5844 | { | |
e8d2ba53 | 5845 | if (hdr->sh_size != 0) |
4eca0228 | 5846 | _bfd_error_handler |
695344c0 | 5847 | /* xgettext:c-format */ |
871b3ab2 | 5848 | (_("%pB: warning: allocated section `%s' not in segment"), |
e8d2ba53 AM |
5849 | abfd, |
5850 | (hdr->bfd_section == NULL | |
5851 | ? "*unknown*" | |
5852 | : hdr->bfd_section->name)); | |
3ba71138 L |
5853 | /* We don't need to page align empty sections. */ |
5854 | if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0) | |
5c182d5f AM |
5855 | off += vma_page_aligned_bias (hdr->sh_addr, off, |
5856 | bed->maxpagesize); | |
5857 | else | |
5858 | off += vma_page_aligned_bias (hdr->sh_addr, off, | |
5859 | hdr->sh_addralign); | |
5860 | off = _bfd_elf_assign_file_position_for_section (hdr, off, | |
5861 | FALSE); | |
5862 | } | |
5863 | else if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) | |
5864 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
5865 | || (hdr->bfd_section != NULL |
5866 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
5867 | /* Compress DWARF debug sections. */ | |
12bd6957 | 5868 | || hdr == i_shdrpp[elf_onesymtab (abfd)] |
6a40cf0c NC |
5869 | || (elf_symtab_shndx_list (abfd) != NULL |
5870 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
5871 | || hdr == i_shdrpp[elf_strtab_sec (abfd)] |
5872 | || hdr == i_shdrpp[elf_shstrtab_sec (abfd)]) | |
5c182d5f AM |
5873 | hdr->sh_offset = -1; |
5874 | else | |
5875 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); | |
5c182d5f AM |
5876 | } |
5877 | ||
252b5132 RH |
5878 | /* Now that we have set the section file positions, we can set up |
5879 | the file positions for the non PT_LOAD segments. */ | |
f3520d2f AM |
5880 | count = 0; |
5881 | filehdr_vaddr = 0; | |
5882 | filehdr_paddr = 0; | |
5883 | phdrs_vaddr = bed->maxpagesize + bed->s->sizeof_ehdr; | |
5884 | phdrs_paddr = 0; | |
62655c7b | 5885 | hdrs_segment = NULL; |
f3520d2f | 5886 | phdrs = elf_tdata (abfd)->phdr; |
12bd6957 | 5887 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
f3520d2f AM |
5888 | { |
5889 | ++count; | |
5890 | if (p->p_type != PT_LOAD) | |
5891 | continue; | |
5892 | ||
5893 | if (m->includes_filehdr) | |
5894 | { | |
5895 | filehdr_vaddr = p->p_vaddr; | |
5896 | filehdr_paddr = p->p_paddr; | |
5897 | } | |
5898 | if (m->includes_phdrs) | |
5899 | { | |
5900 | phdrs_vaddr = p->p_vaddr; | |
5901 | phdrs_paddr = p->p_paddr; | |
5902 | if (m->includes_filehdr) | |
5903 | { | |
62655c7b | 5904 | hdrs_segment = m; |
f3520d2f AM |
5905 | phdrs_vaddr += bed->s->sizeof_ehdr; |
5906 | phdrs_paddr += bed->s->sizeof_ehdr; | |
5907 | } | |
5908 | } | |
5909 | } | |
5910 | ||
62655c7b RM |
5911 | if (hdrs_segment != NULL && link_info != NULL) |
5912 | { | |
5913 | /* There is a segment that contains both the file headers and the | |
5914 | program headers, so provide a symbol __ehdr_start pointing there. | |
5915 | A program can use this to examine itself robustly. */ | |
5916 | ||
5917 | struct elf_link_hash_entry *hash | |
5918 | = elf_link_hash_lookup (elf_hash_table (link_info), "__ehdr_start", | |
5919 | FALSE, FALSE, TRUE); | |
5920 | /* If the symbol was referenced and not defined, define it. */ | |
5921 | if (hash != NULL | |
5922 | && (hash->root.type == bfd_link_hash_new | |
5923 | || hash->root.type == bfd_link_hash_undefined | |
5924 | || hash->root.type == bfd_link_hash_undefweak | |
5925 | || hash->root.type == bfd_link_hash_common)) | |
5926 | { | |
5927 | asection *s = NULL; | |
5928 | if (hdrs_segment->count != 0) | |
5929 | /* The segment contains sections, so use the first one. */ | |
5930 | s = hdrs_segment->sections[0]; | |
5931 | else | |
5932 | /* Use the first (i.e. lowest-addressed) section in any segment. */ | |
12bd6957 | 5933 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62655c7b RM |
5934 | if (m->count != 0) |
5935 | { | |
5936 | s = m->sections[0]; | |
5937 | break; | |
5938 | } | |
5939 | ||
5940 | if (s != NULL) | |
5941 | { | |
5942 | hash->root.u.def.value = filehdr_vaddr - s->vma; | |
5943 | hash->root.u.def.section = s; | |
5944 | } | |
5945 | else | |
5946 | { | |
5947 | hash->root.u.def.value = filehdr_vaddr; | |
5948 | hash->root.u.def.section = bfd_abs_section_ptr; | |
5949 | } | |
5950 | ||
5951 | hash->root.type = bfd_link_hash_defined; | |
5952 | hash->def_regular = 1; | |
5953 | hash->non_elf = 0; | |
5954 | } | |
5955 | } | |
5956 | ||
12bd6957 | 5957 | for (m = elf_seg_map (abfd), p = phdrs; m != NULL; m = m->next, p++) |
252b5132 | 5958 | { |
129af99f | 5959 | if (p->p_type == PT_GNU_RELRO) |
252b5132 | 5960 | { |
f2731e0c | 5961 | bfd_vma start, end; |
01f7e10c | 5962 | bfd_boolean ok; |
1ea63fd2 | 5963 | |
129af99f | 5964 | if (link_info != NULL) |
8c37241b | 5965 | { |
129af99f | 5966 | /* During linking the range of the RELRO segment is passed |
f2731e0c AM |
5967 | in link_info. Note that there may be padding between |
5968 | relro_start and the first RELRO section. */ | |
5969 | start = link_info->relro_start; | |
5970 | end = link_info->relro_end; | |
5971 | } | |
5972 | else if (m->count != 0) | |
5973 | { | |
5974 | if (!m->p_size_valid) | |
5975 | abort (); | |
5976 | start = m->sections[0]->vma; | |
5977 | end = start + m->p_size; | |
5978 | } | |
5979 | else | |
5980 | { | |
5981 | start = 0; | |
5982 | end = 0; | |
5983 | } | |
5984 | ||
01f7e10c | 5985 | ok = FALSE; |
f2731e0c AM |
5986 | if (start < end) |
5987 | { | |
5988 | struct elf_segment_map *lm; | |
5989 | const Elf_Internal_Phdr *lp; | |
5990 | unsigned int i; | |
5991 | ||
5992 | /* Find a LOAD segment containing a section in the RELRO | |
5993 | segment. */ | |
12bd6957 | 5994 | for (lm = elf_seg_map (abfd), lp = phdrs; |
3146fac4 AM |
5995 | lm != NULL; |
5996 | lm = lm->next, lp++) | |
8c37241b JJ |
5997 | { |
5998 | if (lp->p_type == PT_LOAD | |
3146fac4 | 5999 | && lm->count != 0 |
dbc88fc1 AM |
6000 | && (lm->sections[lm->count - 1]->vma |
6001 | + (!IS_TBSS (lm->sections[lm->count - 1]) | |
6002 | ? lm->sections[lm->count - 1]->size | |
6003 | : 0)) > start | |
f2731e0c | 6004 | && lm->sections[0]->vma < end) |
8c37241b JJ |
6005 | break; |
6006 | } | |
f2731e0c | 6007 | |
01f7e10c | 6008 | if (lm != NULL) |
129af99f | 6009 | { |
01f7e10c AM |
6010 | /* Find the section starting the RELRO segment. */ |
6011 | for (i = 0; i < lm->count; i++) | |
6012 | { | |
6013 | asection *s = lm->sections[i]; | |
6014 | if (s->vma >= start | |
6015 | && s->vma < end | |
6016 | && s->size != 0) | |
6017 | break; | |
6018 | } | |
6019 | ||
6020 | if (i < lm->count) | |
6021 | { | |
6022 | p->p_vaddr = lm->sections[i]->vma; | |
6023 | p->p_paddr = lm->sections[i]->lma; | |
6024 | p->p_offset = lm->sections[i]->filepos; | |
6025 | p->p_memsz = end - p->p_vaddr; | |
6026 | p->p_filesz = p->p_memsz; | |
6027 | ||
6028 | /* The RELRO segment typically ends a few bytes | |
6029 | into .got.plt but other layouts are possible. | |
6030 | In cases where the end does not match any | |
6031 | loaded section (for instance is in file | |
6032 | padding), trim p_filesz back to correspond to | |
6033 | the end of loaded section contents. */ | |
6034 | if (p->p_filesz > lp->p_vaddr + lp->p_filesz - p->p_vaddr) | |
6035 | p->p_filesz = lp->p_vaddr + lp->p_filesz - p->p_vaddr; | |
6036 | ||
6037 | /* Preserve the alignment and flags if they are | |
6038 | valid. The gold linker generates RW/4 for | |
6039 | the PT_GNU_RELRO section. It is better for | |
6040 | objcopy/strip to honor these attributes | |
6041 | otherwise gdb will choke when using separate | |
6042 | debug files. */ | |
6043 | if (!m->p_align_valid) | |
6044 | p->p_align = 1; | |
6045 | if (!m->p_flags_valid) | |
6046 | p->p_flags = PF_R; | |
6047 | ok = TRUE; | |
6048 | } | |
129af99f | 6049 | } |
b84a33b5 | 6050 | } |
01f7e10c AM |
6051 | if (link_info != NULL) |
6052 | BFD_ASSERT (ok); | |
6053 | if (!ok) | |
6054 | memset (p, 0, sizeof *p); | |
129af99f | 6055 | } |
04c3a755 NS |
6056 | else if (p->p_type == PT_GNU_STACK) |
6057 | { | |
6058 | if (m->p_size_valid) | |
6059 | p->p_memsz = m->p_size; | |
6060 | } | |
129af99f AS |
6061 | else if (m->count != 0) |
6062 | { | |
e06efbf1 | 6063 | unsigned int i; |
1a9ccd70 | 6064 | |
129af99f AS |
6065 | if (p->p_type != PT_LOAD |
6066 | && (p->p_type != PT_NOTE | |
6067 | || bfd_get_format (abfd) != bfd_core)) | |
6068 | { | |
1a9ccd70 NC |
6069 | /* A user specified segment layout may include a PHDR |
6070 | segment that overlaps with a LOAD segment... */ | |
6071 | if (p->p_type == PT_PHDR) | |
6072 | { | |
6073 | m->count = 0; | |
6074 | continue; | |
6075 | } | |
6076 | ||
c86934ce NC |
6077 | if (m->includes_filehdr || m->includes_phdrs) |
6078 | { | |
b1fa9dd6 | 6079 | /* PR 17512: file: 2195325e. */ |
4eca0228 | 6080 | _bfd_error_handler |
871b3ab2 | 6081 | (_("%pB: error: non-load segment %d includes file header " |
76cfced5 AM |
6082 | "and/or program header"), |
6083 | abfd, (int) (p - phdrs)); | |
c86934ce NC |
6084 | return FALSE; |
6085 | } | |
129af99f | 6086 | |
86b2281f | 6087 | p->p_filesz = 0; |
129af99f | 6088 | p->p_offset = m->sections[0]->filepos; |
86b2281f AM |
6089 | for (i = m->count; i-- != 0;) |
6090 | { | |
6091 | asection *sect = m->sections[i]; | |
6092 | Elf_Internal_Shdr *hdr = &elf_section_data (sect)->this_hdr; | |
6093 | if (hdr->sh_type != SHT_NOBITS) | |
6094 | { | |
6095 | p->p_filesz = (sect->filepos - m->sections[0]->filepos | |
6096 | + hdr->sh_size); | |
6097 | break; | |
6098 | } | |
6099 | } | |
129af99f AS |
6100 | } |
6101 | } | |
6102 | else if (m->includes_filehdr) | |
6103 | { | |
6104 | p->p_vaddr = filehdr_vaddr; | |
6105 | if (! m->p_paddr_valid) | |
6106 | p->p_paddr = filehdr_paddr; | |
6107 | } | |
6108 | else if (m->includes_phdrs) | |
6109 | { | |
6110 | p->p_vaddr = phdrs_vaddr; | |
6111 | if (! m->p_paddr_valid) | |
6112 | p->p_paddr = phdrs_paddr; | |
252b5132 RH |
6113 | } |
6114 | } | |
6115 | ||
12bd6957 | 6116 | elf_next_file_pos (abfd) = off; |
252b5132 | 6117 | |
b34976b6 | 6118 | return TRUE; |
252b5132 RH |
6119 | } |
6120 | ||
6a40cf0c NC |
6121 | static elf_section_list * |
6122 | find_section_in_list (unsigned int i, elf_section_list * list) | |
6123 | { | |
6124 | for (;list != NULL; list = list->next) | |
6125 | if (list->ndx == i) | |
6126 | break; | |
6127 | return list; | |
6128 | } | |
6129 | ||
252b5132 RH |
6130 | /* Work out the file positions of all the sections. This is called by |
6131 | _bfd_elf_compute_section_file_positions. All the section sizes and | |
6132 | VMAs must be known before this is called. | |
6133 | ||
e0638f70 AM |
6134 | Reloc sections come in two flavours: Those processed specially as |
6135 | "side-channel" data attached to a section to which they apply, and | |
6136 | those that bfd doesn't process as relocations. The latter sort are | |
6137 | stored in a normal bfd section by bfd_section_from_shdr. We don't | |
6138 | consider the former sort here, unless they form part of the loadable | |
6139 | image. Reloc sections not assigned here will be handled later by | |
6140 | assign_file_positions_for_relocs. | |
252b5132 RH |
6141 | |
6142 | We also don't set the positions of the .symtab and .strtab here. */ | |
6143 | ||
b34976b6 | 6144 | static bfd_boolean |
c84fca4d AO |
6145 | assign_file_positions_except_relocs (bfd *abfd, |
6146 | struct bfd_link_info *link_info) | |
252b5132 | 6147 | { |
5c182d5f AM |
6148 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
6149 | Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd); | |
9c5bfbb7 | 6150 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6151 | |
6152 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
6153 | && bfd_get_format (abfd) != bfd_core) | |
6154 | { | |
5c182d5f AM |
6155 | Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd); |
6156 | unsigned int num_sec = elf_numsections (abfd); | |
252b5132 RH |
6157 | Elf_Internal_Shdr **hdrpp; |
6158 | unsigned int i; | |
a485e98e | 6159 | file_ptr off; |
252b5132 RH |
6160 | |
6161 | /* Start after the ELF header. */ | |
6162 | off = i_ehdrp->e_ehsize; | |
6163 | ||
6164 | /* We are not creating an executable, which means that we are | |
6165 | not creating a program header, and that the actual order of | |
6166 | the sections in the file is unimportant. */ | |
9ad5cbcf | 6167 | for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++) |
252b5132 RH |
6168 | { |
6169 | Elf_Internal_Shdr *hdr; | |
6170 | ||
6171 | hdr = *hdrpp; | |
e0638f70 AM |
6172 | if (((hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA) |
6173 | && hdr->bfd_section == NULL) | |
0ce398f1 L |
6174 | || (hdr->bfd_section != NULL |
6175 | && (hdr->bfd_section->flags & SEC_ELF_COMPRESS)) | |
6176 | /* Compress DWARF debug sections. */ | |
12bd6957 | 6177 | || i == elf_onesymtab (abfd) |
6a40cf0c NC |
6178 | || (elf_symtab_shndx_list (abfd) != NULL |
6179 | && hdr == i_shdrpp[elf_symtab_shndx_list (abfd)->ndx]) | |
3e19fb8f L |
6180 | || i == elf_strtab_sec (abfd) |
6181 | || i == elf_shstrtab_sec (abfd)) | |
252b5132 RH |
6182 | { |
6183 | hdr->sh_offset = -1; | |
252b5132 | 6184 | } |
9ad5cbcf | 6185 | else |
b34976b6 | 6186 | off = _bfd_elf_assign_file_position_for_section (hdr, off, TRUE); |
252b5132 | 6187 | } |
a485e98e AM |
6188 | |
6189 | elf_next_file_pos (abfd) = off; | |
252b5132 RH |
6190 | } |
6191 | else | |
6192 | { | |
f3520d2f AM |
6193 | unsigned int alloc; |
6194 | ||
252b5132 | 6195 | /* Assign file positions for the loaded sections based on the |
08a40648 | 6196 | assignment of sections to segments. */ |
f3520d2f AM |
6197 | if (!assign_file_positions_for_load_sections (abfd, link_info)) |
6198 | return FALSE; | |
6199 | ||
6200 | /* And for non-load sections. */ | |
6201 | if (!assign_file_positions_for_non_load_sections (abfd, link_info)) | |
6202 | return FALSE; | |
6203 | ||
e36284ab AM |
6204 | if (bed->elf_backend_modify_program_headers != NULL) |
6205 | { | |
6206 | if (!(*bed->elf_backend_modify_program_headers) (abfd, link_info)) | |
6207 | return FALSE; | |
6208 | } | |
6209 | ||
58e7ebac | 6210 | /* Set e_type in ELF header to ET_EXEC for -pie -Ttext-segment=. */ |
0e1862bb | 6211 | if (link_info != NULL && bfd_link_pie (link_info)) |
58e7ebac L |
6212 | { |
6213 | unsigned int num_segments = elf_elfheader (abfd)->e_phnum; | |
6214 | Elf_Internal_Phdr *segment = elf_tdata (abfd)->phdr; | |
6215 | Elf_Internal_Phdr *end_segment = &segment[num_segments]; | |
6216 | ||
6217 | /* Find the lowest p_vaddr in PT_LOAD segments. */ | |
6218 | bfd_vma p_vaddr = (bfd_vma) -1; | |
6219 | for (; segment < end_segment; segment++) | |
6220 | if (segment->p_type == PT_LOAD && p_vaddr > segment->p_vaddr) | |
6221 | p_vaddr = segment->p_vaddr; | |
6222 | ||
6223 | /* Set e_type to ET_EXEC if the lowest p_vaddr in PT_LOAD | |
6224 | segments is non-zero. */ | |
6225 | if (p_vaddr) | |
6226 | i_ehdrp->e_type = ET_EXEC; | |
6227 | } | |
6228 | ||
f3520d2f | 6229 | /* Write out the program headers. */ |
6838f2be | 6230 | alloc = elf_elfheader (abfd)->e_phnum; |
1a9ccd70 NC |
6231 | if (alloc == 0) |
6232 | return TRUE; | |
6233 | ||
1a9ccd70 NC |
6234 | /* PR ld/20815 - Check that the program header segment, if present, will |
6235 | be loaded into memory. FIXME: The check below is not sufficient as | |
6236 | really all PT_LOAD segments should be checked before issuing an error | |
6237 | message. Plus the PHDR segment does not have to be the first segment | |
6238 | in the program header table. But this version of the check should | |
cd584857 NC |
6239 | catch all real world use cases. |
6240 | ||
6241 | FIXME: We used to have code here to sort the PT_LOAD segments into | |
6242 | ascending order, as per the ELF spec. But this breaks some programs, | |
6243 | including the Linux kernel. But really either the spec should be | |
07d6d2b8 | 6244 | changed or the programs updated. */ |
1a9ccd70 | 6245 | if (alloc > 1 |
cd584857 | 6246 | && tdata->phdr[0].p_type == PT_PHDR |
d00dd7dc AM |
6247 | && (bed->elf_backend_allow_non_load_phdr == NULL |
6248 | || !bed->elf_backend_allow_non_load_phdr (abfd, tdata->phdr, | |
6249 | alloc)) | |
cd584857 NC |
6250 | && tdata->phdr[1].p_type == PT_LOAD |
6251 | && (tdata->phdr[1].p_vaddr > tdata->phdr[0].p_vaddr | |
6838f2be AM |
6252 | || (tdata->phdr[1].p_vaddr + tdata->phdr[1].p_memsz |
6253 | < tdata->phdr[0].p_vaddr + tdata->phdr[0].p_memsz))) | |
1a9ccd70 NC |
6254 | { |
6255 | /* The fix for this error is usually to edit the linker script being | |
6256 | used and set up the program headers manually. Either that or | |
6257 | leave room for the headers at the start of the SECTIONS. */ | |
6838f2be AM |
6258 | _bfd_error_handler (_("%pB: error: PHDR segment not covered" |
6259 | " by LOAD segment"), | |
1a9ccd70 | 6260 | abfd); |
1a9ccd70 NC |
6261 | return FALSE; |
6262 | } | |
6263 | ||
f3520d2f | 6264 | if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0 |
cd584857 NC |
6265 | || bed->s->write_out_phdrs (abfd, tdata->phdr, alloc) != 0) |
6266 | return FALSE; | |
252b5132 RH |
6267 | } |
6268 | ||
b34976b6 | 6269 | return TRUE; |
252b5132 RH |
6270 | } |
6271 | ||
b34976b6 | 6272 | static bfd_boolean |
217aa764 | 6273 | prep_headers (bfd *abfd) |
252b5132 | 6274 | { |
3d540e93 | 6275 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form. */ |
2b0f7ef9 | 6276 | struct elf_strtab_hash *shstrtab; |
9c5bfbb7 | 6277 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 RH |
6278 | |
6279 | i_ehdrp = elf_elfheader (abfd); | |
252b5132 | 6280 | |
2b0f7ef9 | 6281 | shstrtab = _bfd_elf_strtab_init (); |
252b5132 | 6282 | if (shstrtab == NULL) |
b34976b6 | 6283 | return FALSE; |
252b5132 RH |
6284 | |
6285 | elf_shstrtab (abfd) = shstrtab; | |
6286 | ||
6287 | i_ehdrp->e_ident[EI_MAG0] = ELFMAG0; | |
6288 | i_ehdrp->e_ident[EI_MAG1] = ELFMAG1; | |
6289 | i_ehdrp->e_ident[EI_MAG2] = ELFMAG2; | |
6290 | i_ehdrp->e_ident[EI_MAG3] = ELFMAG3; | |
6291 | ||
6292 | i_ehdrp->e_ident[EI_CLASS] = bed->s->elfclass; | |
6293 | i_ehdrp->e_ident[EI_DATA] = | |
6294 | bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB; | |
6295 | i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current; | |
6296 | ||
252b5132 RH |
6297 | if ((abfd->flags & DYNAMIC) != 0) |
6298 | i_ehdrp->e_type = ET_DYN; | |
6299 | else if ((abfd->flags & EXEC_P) != 0) | |
6300 | i_ehdrp->e_type = ET_EXEC; | |
6301 | else if (bfd_get_format (abfd) == bfd_core) | |
6302 | i_ehdrp->e_type = ET_CORE; | |
6303 | else | |
6304 | i_ehdrp->e_type = ET_REL; | |
6305 | ||
6306 | switch (bfd_get_arch (abfd)) | |
6307 | { | |
6308 | case bfd_arch_unknown: | |
6309 | i_ehdrp->e_machine = EM_NONE; | |
6310 | break; | |
aa4f99bb AO |
6311 | |
6312 | /* There used to be a long list of cases here, each one setting | |
6313 | e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE | |
6314 | in the corresponding bfd definition. To avoid duplication, | |
6315 | the switch was removed. Machines that need special handling | |
6316 | can generally do it in elf_backend_final_write_processing(), | |
6317 | unless they need the information earlier than the final write. | |
6318 | Such need can generally be supplied by replacing the tests for | |
6319 | e_machine with the conditions used to determine it. */ | |
252b5132 | 6320 | default: |
9c5bfbb7 AM |
6321 | i_ehdrp->e_machine = bed->elf_machine_code; |
6322 | } | |
aa4f99bb | 6323 | |
252b5132 RH |
6324 | i_ehdrp->e_version = bed->s->ev_current; |
6325 | i_ehdrp->e_ehsize = bed->s->sizeof_ehdr; | |
6326 | ||
c044fabd | 6327 | /* No program header, for now. */ |
252b5132 RH |
6328 | i_ehdrp->e_phoff = 0; |
6329 | i_ehdrp->e_phentsize = 0; | |
6330 | i_ehdrp->e_phnum = 0; | |
6331 | ||
c044fabd | 6332 | /* Each bfd section is section header entry. */ |
252b5132 RH |
6333 | i_ehdrp->e_entry = bfd_get_start_address (abfd); |
6334 | i_ehdrp->e_shentsize = bed->s->sizeof_shdr; | |
6335 | ||
c044fabd | 6336 | /* If we're building an executable, we'll need a program header table. */ |
252b5132 | 6337 | if (abfd->flags & EXEC_P) |
0e71e495 BE |
6338 | /* It all happens later. */ |
6339 | ; | |
252b5132 RH |
6340 | else |
6341 | { | |
6342 | i_ehdrp->e_phentsize = 0; | |
252b5132 RH |
6343 | i_ehdrp->e_phoff = 0; |
6344 | } | |
6345 | ||
6346 | elf_tdata (abfd)->symtab_hdr.sh_name = | |
b34976b6 | 6347 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", FALSE); |
252b5132 | 6348 | elf_tdata (abfd)->strtab_hdr.sh_name = |
b34976b6 | 6349 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", FALSE); |
252b5132 | 6350 | elf_tdata (abfd)->shstrtab_hdr.sh_name = |
b34976b6 | 6351 | (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", FALSE); |
252b5132 | 6352 | if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1 |
17ca87fc | 6353 | || elf_tdata (abfd)->strtab_hdr.sh_name == (unsigned int) -1 |
252b5132 | 6354 | || elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1) |
b34976b6 | 6355 | return FALSE; |
252b5132 | 6356 | |
b34976b6 | 6357 | return TRUE; |
252b5132 RH |
6358 | } |
6359 | ||
6360 | /* Assign file positions for all the reloc sections which are not part | |
a485e98e | 6361 | of the loadable file image, and the file position of section headers. */ |
252b5132 | 6362 | |
0ce398f1 L |
6363 | static bfd_boolean |
6364 | _bfd_elf_assign_file_positions_for_non_load (bfd *abfd) | |
252b5132 RH |
6365 | { |
6366 | file_ptr off; | |
e06efbf1 | 6367 | Elf_Internal_Shdr **shdrpp, **end_shdrpp; |
3e19fb8f | 6368 | Elf_Internal_Shdr *shdrp; |
a485e98e AM |
6369 | Elf_Internal_Ehdr *i_ehdrp; |
6370 | const struct elf_backend_data *bed; | |
252b5132 | 6371 | |
12bd6957 | 6372 | off = elf_next_file_pos (abfd); |
252b5132 | 6373 | |
e06efbf1 L |
6374 | shdrpp = elf_elfsections (abfd); |
6375 | end_shdrpp = shdrpp + elf_numsections (abfd); | |
6376 | for (shdrpp++; shdrpp < end_shdrpp; shdrpp++) | |
252b5132 | 6377 | { |
252b5132 | 6378 | shdrp = *shdrpp; |
0ce398f1 L |
6379 | if (shdrp->sh_offset == -1) |
6380 | { | |
3e19fb8f | 6381 | asection *sec = shdrp->bfd_section; |
0ce398f1 L |
6382 | bfd_boolean is_rel = (shdrp->sh_type == SHT_REL |
6383 | || shdrp->sh_type == SHT_RELA); | |
6384 | if (is_rel | |
3e19fb8f | 6385 | || (sec != NULL && (sec->flags & SEC_ELF_COMPRESS))) |
0ce398f1 L |
6386 | { |
6387 | if (!is_rel) | |
6388 | { | |
3e19fb8f L |
6389 | const char *name = sec->name; |
6390 | struct bfd_elf_section_data *d; | |
6391 | ||
0ce398f1 | 6392 | /* Compress DWARF debug sections. */ |
3e19fb8f | 6393 | if (!bfd_compress_section (abfd, sec, |
0ce398f1 L |
6394 | shdrp->contents)) |
6395 | return FALSE; | |
3e19fb8f L |
6396 | |
6397 | if (sec->compress_status == COMPRESS_SECTION_DONE | |
6398 | && (abfd->flags & BFD_COMPRESS_GABI) == 0) | |
6399 | { | |
6400 | /* If section is compressed with zlib-gnu, convert | |
6401 | section name from .debug_* to .zdebug_*. */ | |
6402 | char *new_name | |
6403 | = convert_debug_to_zdebug (abfd, name); | |
6404 | if (new_name == NULL) | |
6405 | return FALSE; | |
6406 | name = new_name; | |
6407 | } | |
dd905818 | 6408 | /* Add section name to section name section. */ |
3e19fb8f L |
6409 | if (shdrp->sh_name != (unsigned int) -1) |
6410 | abort (); | |
6411 | shdrp->sh_name | |
6412 | = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), | |
6413 | name, FALSE); | |
6414 | d = elf_section_data (sec); | |
6415 | ||
dd905818 | 6416 | /* Add reloc section name to section name section. */ |
3e19fb8f L |
6417 | if (d->rel.hdr |
6418 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6419 | d->rel.hdr, | |
6420 | name, FALSE)) | |
6421 | return FALSE; | |
6422 | if (d->rela.hdr | |
6423 | && !_bfd_elf_set_reloc_sh_name (abfd, | |
6424 | d->rela.hdr, | |
91cb26da | 6425 | name, TRUE)) |
3e19fb8f L |
6426 | return FALSE; |
6427 | ||
0ce398f1 | 6428 | /* Update section size and contents. */ |
3e19fb8f L |
6429 | shdrp->sh_size = sec->size; |
6430 | shdrp->contents = sec->contents; | |
0ce398f1 L |
6431 | shdrp->bfd_section->contents = NULL; |
6432 | } | |
6433 | off = _bfd_elf_assign_file_position_for_section (shdrp, | |
6434 | off, | |
6435 | TRUE); | |
6436 | } | |
6437 | } | |
252b5132 RH |
6438 | } |
6439 | ||
3e19fb8f L |
6440 | /* Place section name section after DWARF debug sections have been |
6441 | compressed. */ | |
6442 | _bfd_elf_strtab_finalize (elf_shstrtab (abfd)); | |
6443 | shdrp = &elf_tdata (abfd)->shstrtab_hdr; | |
6444 | shdrp->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd)); | |
6445 | off = _bfd_elf_assign_file_position_for_section (shdrp, off, TRUE); | |
6446 | ||
6447 | /* Place the section headers. */ | |
a485e98e AM |
6448 | i_ehdrp = elf_elfheader (abfd); |
6449 | bed = get_elf_backend_data (abfd); | |
6450 | off = align_file_position (off, 1 << bed->s->log_file_align); | |
6451 | i_ehdrp->e_shoff = off; | |
6452 | off += i_ehdrp->e_shnum * i_ehdrp->e_shentsize; | |
12bd6957 | 6453 | elf_next_file_pos (abfd) = off; |
0ce398f1 L |
6454 | |
6455 | return TRUE; | |
252b5132 RH |
6456 | } |
6457 | ||
b34976b6 | 6458 | bfd_boolean |
217aa764 | 6459 | _bfd_elf_write_object_contents (bfd *abfd) |
252b5132 | 6460 | { |
9c5bfbb7 | 6461 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 6462 | Elf_Internal_Shdr **i_shdrp; |
b34976b6 | 6463 | bfd_boolean failed; |
9ad5cbcf | 6464 | unsigned int count, num_sec; |
30e8ee25 | 6465 | struct elf_obj_tdata *t; |
252b5132 RH |
6466 | |
6467 | if (! abfd->output_has_begun | |
217aa764 | 6468 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 6469 | return FALSE; |
db727370 JL |
6470 | /* Do not rewrite ELF data when the BFD has been opened for update. |
6471 | abfd->output_has_begun was set to TRUE on opening, so creation of new | |
6472 | sections, and modification of existing section sizes was restricted. | |
6473 | This means the ELF header, program headers and section headers can't have | |
6474 | changed. | |
6475 | If the contents of any sections has been modified, then those changes have | |
6476 | already been written to the BFD. */ | |
6477 | else if (abfd->direction == both_direction) | |
6478 | { | |
6479 | BFD_ASSERT (abfd->output_has_begun); | |
6480 | return TRUE; | |
6481 | } | |
252b5132 RH |
6482 | |
6483 | i_shdrp = elf_elfsections (abfd); | |
252b5132 | 6484 | |
b34976b6 | 6485 | failed = FALSE; |
252b5132 RH |
6486 | bfd_map_over_sections (abfd, bed->s->write_relocs, &failed); |
6487 | if (failed) | |
b34976b6 | 6488 | return FALSE; |
252b5132 | 6489 | |
0ce398f1 L |
6490 | if (!_bfd_elf_assign_file_positions_for_non_load (abfd)) |
6491 | return FALSE; | |
252b5132 | 6492 | |
c044fabd | 6493 | /* After writing the headers, we need to write the sections too... */ |
9ad5cbcf AM |
6494 | num_sec = elf_numsections (abfd); |
6495 | for (count = 1; count < num_sec; count++) | |
252b5132 | 6496 | { |
3e19fb8f L |
6497 | i_shdrp[count]->sh_name |
6498 | = _bfd_elf_strtab_offset (elf_shstrtab (abfd), | |
6499 | i_shdrp[count]->sh_name); | |
252b5132 | 6500 | if (bed->elf_backend_section_processing) |
75506100 MR |
6501 | if (!(*bed->elf_backend_section_processing) (abfd, i_shdrp[count])) |
6502 | return FALSE; | |
252b5132 RH |
6503 | if (i_shdrp[count]->contents) |
6504 | { | |
dc810e39 AM |
6505 | bfd_size_type amt = i_shdrp[count]->sh_size; |
6506 | ||
252b5132 | 6507 | if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0 |
dc810e39 | 6508 | || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt) |
b34976b6 | 6509 | return FALSE; |
252b5132 RH |
6510 | } |
6511 | } | |
6512 | ||
6513 | /* Write out the section header names. */ | |
30e8ee25 | 6514 | t = elf_tdata (abfd); |
26ae6d5e | 6515 | if (elf_shstrtab (abfd) != NULL |
30e8ee25 | 6516 | && (bfd_seek (abfd, t->shstrtab_hdr.sh_offset, SEEK_SET) != 0 |
08a40648 | 6517 | || !_bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))) |
b34976b6 | 6518 | return FALSE; |
252b5132 RH |
6519 | |
6520 | if (bed->elf_backend_final_write_processing) | |
12bd6957 | 6521 | (*bed->elf_backend_final_write_processing) (abfd, elf_linker (abfd)); |
252b5132 | 6522 | |
ff59fc36 RM |
6523 | if (!bed->s->write_shdrs_and_ehdr (abfd)) |
6524 | return FALSE; | |
6525 | ||
6526 | /* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */ | |
c0355132 AM |
6527 | if (t->o->build_id.after_write_object_contents != NULL) |
6528 | return (*t->o->build_id.after_write_object_contents) (abfd); | |
ff59fc36 RM |
6529 | |
6530 | return TRUE; | |
252b5132 RH |
6531 | } |
6532 | ||
b34976b6 | 6533 | bfd_boolean |
217aa764 | 6534 | _bfd_elf_write_corefile_contents (bfd *abfd) |
252b5132 | 6535 | { |
c044fabd | 6536 | /* Hopefully this can be done just like an object file. */ |
252b5132 RH |
6537 | return _bfd_elf_write_object_contents (abfd); |
6538 | } | |
c044fabd KH |
6539 | |
6540 | /* Given a section, search the header to find them. */ | |
6541 | ||
cb33740c | 6542 | unsigned int |
198beae2 | 6543 | _bfd_elf_section_from_bfd_section (bfd *abfd, struct bfd_section *asect) |
252b5132 | 6544 | { |
9c5bfbb7 | 6545 | const struct elf_backend_data *bed; |
91d6fa6a | 6546 | unsigned int sec_index; |
252b5132 | 6547 | |
9ad5cbcf AM |
6548 | if (elf_section_data (asect) != NULL |
6549 | && elf_section_data (asect)->this_idx != 0) | |
6550 | return elf_section_data (asect)->this_idx; | |
6551 | ||
6552 | if (bfd_is_abs_section (asect)) | |
91d6fa6a | 6553 | sec_index = SHN_ABS; |
af746e92 | 6554 | else if (bfd_is_com_section (asect)) |
91d6fa6a | 6555 | sec_index = SHN_COMMON; |
af746e92 | 6556 | else if (bfd_is_und_section (asect)) |
91d6fa6a | 6557 | sec_index = SHN_UNDEF; |
af746e92 | 6558 | else |
91d6fa6a | 6559 | sec_index = SHN_BAD; |
252b5132 | 6560 | |
af746e92 | 6561 | bed = get_elf_backend_data (abfd); |
252b5132 RH |
6562 | if (bed->elf_backend_section_from_bfd_section) |
6563 | { | |
91d6fa6a | 6564 | int retval = sec_index; |
9ad5cbcf | 6565 | |
af746e92 AM |
6566 | if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval)) |
6567 | return retval; | |
252b5132 RH |
6568 | } |
6569 | ||
91d6fa6a | 6570 | if (sec_index == SHN_BAD) |
af746e92 | 6571 | bfd_set_error (bfd_error_nonrepresentable_section); |
252b5132 | 6572 | |
91d6fa6a | 6573 | return sec_index; |
252b5132 RH |
6574 | } |
6575 | ||
6576 | /* Given a BFD symbol, return the index in the ELF symbol table, or -1 | |
6577 | on error. */ | |
6578 | ||
6579 | int | |
217aa764 | 6580 | _bfd_elf_symbol_from_bfd_symbol (bfd *abfd, asymbol **asym_ptr_ptr) |
252b5132 RH |
6581 | { |
6582 | asymbol *asym_ptr = *asym_ptr_ptr; | |
6583 | int idx; | |
6584 | flagword flags = asym_ptr->flags; | |
6585 | ||
6586 | /* When gas creates relocations against local labels, it creates its | |
6587 | own symbol for the section, but does put the symbol into the | |
6588 | symbol chain, so udata is 0. When the linker is generating | |
6589 | relocatable output, this section symbol may be for one of the | |
6590 | input sections rather than the output section. */ | |
6591 | if (asym_ptr->udata.i == 0 | |
6592 | && (flags & BSF_SECTION_SYM) | |
6593 | && asym_ptr->section) | |
6594 | { | |
5372391b | 6595 | asection *sec; |
252b5132 RH |
6596 | int indx; |
6597 | ||
5372391b AM |
6598 | sec = asym_ptr->section; |
6599 | if (sec->owner != abfd && sec->output_section != NULL) | |
6600 | sec = sec->output_section; | |
6601 | if (sec->owner == abfd | |
6602 | && (indx = sec->index) < elf_num_section_syms (abfd) | |
4e89ac30 | 6603 | && elf_section_syms (abfd)[indx] != NULL) |
252b5132 RH |
6604 | asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i; |
6605 | } | |
6606 | ||
6607 | idx = asym_ptr->udata.i; | |
6608 | ||
6609 | if (idx == 0) | |
6610 | { | |
6611 | /* This case can occur when using --strip-symbol on a symbol | |
08a40648 | 6612 | which is used in a relocation entry. */ |
4eca0228 | 6613 | _bfd_error_handler |
695344c0 | 6614 | /* xgettext:c-format */ |
871b3ab2 | 6615 | (_("%pB: symbol `%s' required but not present"), |
d003868e | 6616 | abfd, bfd_asymbol_name (asym_ptr)); |
252b5132 RH |
6617 | bfd_set_error (bfd_error_no_symbols); |
6618 | return -1; | |
6619 | } | |
6620 | ||
6621 | #if DEBUG & 4 | |
6622 | { | |
6623 | fprintf (stderr, | |
cd9af601 AM |
6624 | "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8x\n", |
6625 | (long) asym_ptr, asym_ptr->name, idx, flags); | |
252b5132 RH |
6626 | fflush (stderr); |
6627 | } | |
6628 | #endif | |
6629 | ||
6630 | return idx; | |
6631 | } | |
6632 | ||
84d1d650 | 6633 | /* Rewrite program header information. */ |
252b5132 | 6634 | |
b34976b6 | 6635 | static bfd_boolean |
84d1d650 | 6636 | rewrite_elf_program_header (bfd *ibfd, bfd *obfd) |
252b5132 | 6637 | { |
b34976b6 AM |
6638 | Elf_Internal_Ehdr *iehdr; |
6639 | struct elf_segment_map *map; | |
6640 | struct elf_segment_map *map_first; | |
6641 | struct elf_segment_map **pointer_to_map; | |
6642 | Elf_Internal_Phdr *segment; | |
6643 | asection *section; | |
6644 | unsigned int i; | |
6645 | unsigned int num_segments; | |
6646 | bfd_boolean phdr_included = FALSE; | |
5c44b38e | 6647 | bfd_boolean p_paddr_valid; |
b34976b6 AM |
6648 | bfd_vma maxpagesize; |
6649 | struct elf_segment_map *phdr_adjust_seg = NULL; | |
6650 | unsigned int phdr_adjust_num = 0; | |
9c5bfbb7 | 6651 | const struct elf_backend_data *bed; |
bc67d8a6 | 6652 | |
caf47ea6 | 6653 | bed = get_elf_backend_data (ibfd); |
252b5132 RH |
6654 | iehdr = elf_elfheader (ibfd); |
6655 | ||
bc67d8a6 | 6656 | map_first = NULL; |
c044fabd | 6657 | pointer_to_map = &map_first; |
252b5132 RH |
6658 | |
6659 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
bc67d8a6 NC |
6660 | maxpagesize = get_elf_backend_data (obfd)->maxpagesize; |
6661 | ||
6662 | /* Returns the end address of the segment + 1. */ | |
aecc8f8a AM |
6663 | #define SEGMENT_END(segment, start) \ |
6664 | (start + (segment->p_memsz > segment->p_filesz \ | |
6665 | ? segment->p_memsz : segment->p_filesz)) | |
bc67d8a6 | 6666 | |
eecdbe52 JJ |
6667 | #define SECTION_SIZE(section, segment) \ |
6668 | (((section->flags & (SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) \ | |
6669 | != SEC_THREAD_LOCAL || segment->p_type == PT_TLS) \ | |
eea6121a | 6670 | ? section->size : 0) |
eecdbe52 | 6671 | |
b34976b6 | 6672 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6673 | the given segment. VMA addresses are compared. */ |
aecc8f8a AM |
6674 | #define IS_CONTAINED_BY_VMA(section, segment) \ |
6675 | (section->vma >= segment->p_vaddr \ | |
eecdbe52 | 6676 | && (section->vma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6677 | <= (SEGMENT_END (segment, segment->p_vaddr)))) |
c044fabd | 6678 | |
b34976b6 | 6679 | /* Returns TRUE if the given section is contained within |
bc67d8a6 | 6680 | the given segment. LMA addresses are compared. */ |
aecc8f8a AM |
6681 | #define IS_CONTAINED_BY_LMA(section, segment, base) \ |
6682 | (section->lma >= base \ | |
beab4532 | 6683 | && (section->lma + SECTION_SIZE (section, segment) >= section->lma) \ |
eecdbe52 | 6684 | && (section->lma + SECTION_SIZE (section, segment) \ |
aecc8f8a | 6685 | <= SEGMENT_END (segment, base))) |
252b5132 | 6686 | |
0efc80c8 L |
6687 | /* Handle PT_NOTE segment. */ |
6688 | #define IS_NOTE(p, s) \ | |
aecc8f8a | 6689 | (p->p_type == PT_NOTE \ |
0efc80c8 | 6690 | && elf_section_type (s) == SHT_NOTE \ |
aecc8f8a | 6691 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6692 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6693 | <= p->p_offset + p->p_filesz)) |
252b5132 | 6694 | |
0efc80c8 L |
6695 | /* Special case: corefile "NOTE" section containing regs, prpsinfo |
6696 | etc. */ | |
6697 | #define IS_COREFILE_NOTE(p, s) \ | |
6698 | (IS_NOTE (p, s) \ | |
6699 | && bfd_get_format (ibfd) == bfd_core \ | |
6700 | && s->vma == 0 \ | |
6701 | && s->lma == 0) | |
6702 | ||
252b5132 RH |
6703 | /* The complicated case when p_vaddr is 0 is to handle the Solaris |
6704 | linker, which generates a PT_INTERP section with p_vaddr and | |
6705 | p_memsz set to 0. */ | |
aecc8f8a AM |
6706 | #define IS_SOLARIS_PT_INTERP(p, s) \ |
6707 | (p->p_vaddr == 0 \ | |
6708 | && p->p_paddr == 0 \ | |
6709 | && p->p_memsz == 0 \ | |
6710 | && p->p_filesz > 0 \ | |
6711 | && (s->flags & SEC_HAS_CONTENTS) != 0 \ | |
eea6121a | 6712 | && s->size > 0 \ |
aecc8f8a | 6713 | && (bfd_vma) s->filepos >= p->p_offset \ |
cb3ff1e5 | 6714 | && ((bfd_vma) s->filepos + s->size \ |
aecc8f8a | 6715 | <= p->p_offset + p->p_filesz)) |
5c440b1e | 6716 | |
bc67d8a6 NC |
6717 | /* Decide if the given section should be included in the given segment. |
6718 | A section will be included if: | |
f5ffc919 | 6719 | 1. It is within the address space of the segment -- we use the LMA |
08a40648 | 6720 | if that is set for the segment and the VMA otherwise, |
0efc80c8 | 6721 | 2. It is an allocated section or a NOTE section in a PT_NOTE |
d324f6d6 | 6722 | segment. |
bc67d8a6 | 6723 | 3. There is an output section associated with it, |
eecdbe52 | 6724 | 4. The section has not already been allocated to a previous segment. |
2b05f1b7 | 6725 | 5. PT_GNU_STACK segments do not include any sections. |
03394ac9 | 6726 | 6. PT_TLS segment includes only SHF_TLS sections. |
6f79b219 JJ |
6727 | 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. |
6728 | 8. PT_DYNAMIC should not contain empty sections at the beginning | |
08a40648 | 6729 | (with the possible exception of .dynamic). */ |
9f17e2a6 | 6730 | #define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \ |
2b05f1b7 L |
6731 | ((((segment->p_paddr \ |
6732 | ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \ | |
6733 | : IS_CONTAINED_BY_VMA (section, segment)) \ | |
6734 | && (section->flags & SEC_ALLOC) != 0) \ | |
0efc80c8 | 6735 | || IS_NOTE (segment, section)) \ |
2b05f1b7 L |
6736 | && segment->p_type != PT_GNU_STACK \ |
6737 | && (segment->p_type != PT_TLS \ | |
6738 | || (section->flags & SEC_THREAD_LOCAL)) \ | |
6739 | && (segment->p_type == PT_LOAD \ | |
6740 | || segment->p_type == PT_TLS \ | |
6741 | || (section->flags & SEC_THREAD_LOCAL) == 0) \ | |
6742 | && (segment->p_type != PT_DYNAMIC \ | |
6743 | || SECTION_SIZE (section, segment) > 0 \ | |
6744 | || (segment->p_paddr \ | |
6745 | ? segment->p_paddr != section->lma \ | |
6746 | : segment->p_vaddr != section->vma) \ | |
6747 | || (strcmp (bfd_get_section_name (ibfd, section), ".dynamic") \ | |
6748 | == 0)) \ | |
9933dc52 | 6749 | && (segment->p_type != PT_LOAD || !section->segment_mark)) |
bc67d8a6 | 6750 | |
9f17e2a6 L |
6751 | /* If the output section of a section in the input segment is NULL, |
6752 | it is removed from the corresponding output segment. */ | |
6753 | #define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \ | |
6754 | (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \ | |
6755 | && section->output_section != NULL) | |
6756 | ||
b34976b6 | 6757 | /* Returns TRUE iff seg1 starts after the end of seg2. */ |
b5f852ea NC |
6758 | #define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \ |
6759 | (seg1->field >= SEGMENT_END (seg2, seg2->field)) | |
6760 | ||
6761 | /* Returns TRUE iff seg1 and seg2 overlap. Segments overlap iff both | |
6762 | their VMA address ranges and their LMA address ranges overlap. | |
6763 | It is possible to have overlapping VMA ranges without overlapping LMA | |
6764 | ranges. RedBoot images for example can have both .data and .bss mapped | |
6765 | to the same VMA range, but with the .data section mapped to a different | |
6766 | LMA. */ | |
aecc8f8a | 6767 | #define SEGMENT_OVERLAPS(seg1, seg2) \ |
b5f852ea | 6768 | ( !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_vaddr) \ |
08a40648 | 6769 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_vaddr)) \ |
b5f852ea | 6770 | && !(SEGMENT_AFTER_SEGMENT (seg1, seg2, p_paddr) \ |
08a40648 | 6771 | || SEGMENT_AFTER_SEGMENT (seg2, seg1, p_paddr))) |
bc67d8a6 NC |
6772 | |
6773 | /* Initialise the segment mark field. */ | |
6774 | for (section = ibfd->sections; section != NULL; section = section->next) | |
b34976b6 | 6775 | section->segment_mark = FALSE; |
bc67d8a6 | 6776 | |
5c44b38e AM |
6777 | /* The Solaris linker creates program headers in which all the |
6778 | p_paddr fields are zero. When we try to objcopy or strip such a | |
6779 | file, we get confused. Check for this case, and if we find it | |
6780 | don't set the p_paddr_valid fields. */ | |
6781 | p_paddr_valid = FALSE; | |
6782 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6783 | i < num_segments; | |
6784 | i++, segment++) | |
6785 | if (segment->p_paddr != 0) | |
6786 | { | |
6787 | p_paddr_valid = TRUE; | |
6788 | break; | |
6789 | } | |
6790 | ||
252b5132 | 6791 | /* Scan through the segments specified in the program header |
bc67d8a6 | 6792 | of the input BFD. For this first scan we look for overlaps |
9ad5cbcf | 6793 | in the loadable segments. These can be created by weird |
aecc8f8a | 6794 | parameters to objcopy. Also, fix some solaris weirdness. */ |
bc67d8a6 NC |
6795 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
6796 | i < num_segments; | |
c044fabd | 6797 | i++, segment++) |
252b5132 | 6798 | { |
252b5132 | 6799 | unsigned int j; |
c044fabd | 6800 | Elf_Internal_Phdr *segment2; |
252b5132 | 6801 | |
aecc8f8a AM |
6802 | if (segment->p_type == PT_INTERP) |
6803 | for (section = ibfd->sections; section; section = section->next) | |
6804 | if (IS_SOLARIS_PT_INTERP (segment, section)) | |
6805 | { | |
6806 | /* Mininal change so that the normal section to segment | |
4cc11e76 | 6807 | assignment code will work. */ |
aecc8f8a AM |
6808 | segment->p_vaddr = section->vma; |
6809 | break; | |
6810 | } | |
6811 | ||
bc67d8a6 | 6812 | if (segment->p_type != PT_LOAD) |
b10a8ae0 L |
6813 | { |
6814 | /* Remove PT_GNU_RELRO segment. */ | |
6815 | if (segment->p_type == PT_GNU_RELRO) | |
6816 | segment->p_type = PT_NULL; | |
6817 | continue; | |
6818 | } | |
c044fabd | 6819 | |
bc67d8a6 | 6820 | /* Determine if this segment overlaps any previous segments. */ |
0067a569 | 6821 | for (j = 0, segment2 = elf_tdata (ibfd)->phdr; j < i; j++, segment2++) |
bc67d8a6 NC |
6822 | { |
6823 | bfd_signed_vma extra_length; | |
c044fabd | 6824 | |
bc67d8a6 | 6825 | if (segment2->p_type != PT_LOAD |
0067a569 | 6826 | || !SEGMENT_OVERLAPS (segment, segment2)) |
bc67d8a6 | 6827 | continue; |
c044fabd | 6828 | |
bc67d8a6 NC |
6829 | /* Merge the two segments together. */ |
6830 | if (segment2->p_vaddr < segment->p_vaddr) | |
6831 | { | |
c044fabd | 6832 | /* Extend SEGMENT2 to include SEGMENT and then delete |
08a40648 | 6833 | SEGMENT. */ |
0067a569 AM |
6834 | extra_length = (SEGMENT_END (segment, segment->p_vaddr) |
6835 | - SEGMENT_END (segment2, segment2->p_vaddr)); | |
c044fabd | 6836 | |
bc67d8a6 NC |
6837 | if (extra_length > 0) |
6838 | { | |
0067a569 | 6839 | segment2->p_memsz += extra_length; |
bc67d8a6 NC |
6840 | segment2->p_filesz += extra_length; |
6841 | } | |
c044fabd | 6842 | |
bc67d8a6 | 6843 | segment->p_type = PT_NULL; |
c044fabd | 6844 | |
bc67d8a6 NC |
6845 | /* Since we have deleted P we must restart the outer loop. */ |
6846 | i = 0; | |
6847 | segment = elf_tdata (ibfd)->phdr; | |
6848 | break; | |
6849 | } | |
6850 | else | |
6851 | { | |
c044fabd | 6852 | /* Extend SEGMENT to include SEGMENT2 and then delete |
08a40648 | 6853 | SEGMENT2. */ |
0067a569 AM |
6854 | extra_length = (SEGMENT_END (segment2, segment2->p_vaddr) |
6855 | - SEGMENT_END (segment, segment->p_vaddr)); | |
c044fabd | 6856 | |
bc67d8a6 NC |
6857 | if (extra_length > 0) |
6858 | { | |
0067a569 | 6859 | segment->p_memsz += extra_length; |
bc67d8a6 NC |
6860 | segment->p_filesz += extra_length; |
6861 | } | |
c044fabd | 6862 | |
bc67d8a6 NC |
6863 | segment2->p_type = PT_NULL; |
6864 | } | |
6865 | } | |
6866 | } | |
c044fabd | 6867 | |
bc67d8a6 NC |
6868 | /* The second scan attempts to assign sections to segments. */ |
6869 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
6870 | i < num_segments; | |
0067a569 | 6871 | i++, segment++) |
bc67d8a6 | 6872 | { |
0067a569 AM |
6873 | unsigned int section_count; |
6874 | asection **sections; | |
6875 | asection *output_section; | |
6876 | unsigned int isec; | |
9933dc52 AM |
6877 | asection *matching_lma; |
6878 | asection *suggested_lma; | |
0067a569 | 6879 | unsigned int j; |
dc810e39 | 6880 | bfd_size_type amt; |
0067a569 | 6881 | asection *first_section; |
bc67d8a6 NC |
6882 | |
6883 | if (segment->p_type == PT_NULL) | |
6884 | continue; | |
c044fabd | 6885 | |
9f17e2a6 | 6886 | first_section = NULL; |
bc67d8a6 | 6887 | /* Compute how many sections might be placed into this segment. */ |
b5f852ea NC |
6888 | for (section = ibfd->sections, section_count = 0; |
6889 | section != NULL; | |
6890 | section = section->next) | |
9f17e2a6 L |
6891 | { |
6892 | /* Find the first section in the input segment, which may be | |
6893 | removed from the corresponding output segment. */ | |
6894 | if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed)) | |
6895 | { | |
6896 | if (first_section == NULL) | |
6897 | first_section = section; | |
6898 | if (section->output_section != NULL) | |
6899 | ++section_count; | |
6900 | } | |
6901 | } | |
811072d8 | 6902 | |
b5f852ea NC |
6903 | /* Allocate a segment map big enough to contain |
6904 | all of the sections we have selected. */ | |
00bee008 AM |
6905 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
6906 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 6907 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 6908 | if (map == NULL) |
b34976b6 | 6909 | return FALSE; |
252b5132 RH |
6910 | |
6911 | /* Initialise the fields of the segment map. Default to | |
6912 | using the physical address of the segment in the input BFD. */ | |
0067a569 AM |
6913 | map->next = NULL; |
6914 | map->p_type = segment->p_type; | |
6915 | map->p_flags = segment->p_flags; | |
bc67d8a6 | 6916 | map->p_flags_valid = 1; |
55d55ac7 | 6917 | |
9f17e2a6 L |
6918 | /* If the first section in the input segment is removed, there is |
6919 | no need to preserve segment physical address in the corresponding | |
6920 | output segment. */ | |
945c025a | 6921 | if (!first_section || first_section->output_section != NULL) |
9f17e2a6 L |
6922 | { |
6923 | map->p_paddr = segment->p_paddr; | |
5c44b38e | 6924 | map->p_paddr_valid = p_paddr_valid; |
9f17e2a6 | 6925 | } |
252b5132 RH |
6926 | |
6927 | /* Determine if this segment contains the ELF file header | |
6928 | and if it contains the program headers themselves. */ | |
bc67d8a6 NC |
6929 | map->includes_filehdr = (segment->p_offset == 0 |
6930 | && segment->p_filesz >= iehdr->e_ehsize); | |
bc67d8a6 | 6931 | map->includes_phdrs = 0; |
252b5132 | 6932 | |
0067a569 | 6933 | if (!phdr_included || segment->p_type != PT_LOAD) |
252b5132 | 6934 | { |
bc67d8a6 NC |
6935 | map->includes_phdrs = |
6936 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
6937 | && (segment->p_offset + segment->p_filesz | |
252b5132 RH |
6938 | >= ((bfd_vma) iehdr->e_phoff |
6939 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
c044fabd | 6940 | |
bc67d8a6 | 6941 | if (segment->p_type == PT_LOAD && map->includes_phdrs) |
b34976b6 | 6942 | phdr_included = TRUE; |
252b5132 RH |
6943 | } |
6944 | ||
bc67d8a6 | 6945 | if (section_count == 0) |
252b5132 RH |
6946 | { |
6947 | /* Special segments, such as the PT_PHDR segment, may contain | |
6948 | no sections, but ordinary, loadable segments should contain | |
1ed89aa9 | 6949 | something. They are allowed by the ELF spec however, so only |
07d6d2b8 | 6950 | a warning is produced. |
f98450c6 NC |
6951 | There is however the valid use case of embedded systems which |
6952 | have segments with p_filesz of 0 and a p_memsz > 0 to initialize | |
6953 | flash memory with zeros. No warning is shown for that case. */ | |
6954 | if (segment->p_type == PT_LOAD | |
6955 | && (segment->p_filesz > 0 || segment->p_memsz == 0)) | |
6956 | /* xgettext:c-format */ | |
9793eb77 AM |
6957 | _bfd_error_handler |
6958 | (_("%pB: warning: empty loadable segment detected" | |
6959 | " at vaddr=%#" PRIx64 ", is this intentional?"), | |
6960 | ibfd, (uint64_t) segment->p_vaddr); | |
252b5132 | 6961 | |
5d695627 | 6962 | map->p_vaddr_offset = segment->p_vaddr; |
bc67d8a6 | 6963 | map->count = 0; |
c044fabd KH |
6964 | *pointer_to_map = map; |
6965 | pointer_to_map = &map->next; | |
252b5132 RH |
6966 | |
6967 | continue; | |
6968 | } | |
6969 | ||
6970 | /* Now scan the sections in the input BFD again and attempt | |
6971 | to add their corresponding output sections to the segment map. | |
6972 | The problem here is how to handle an output section which has | |
6973 | been moved (ie had its LMA changed). There are four possibilities: | |
6974 | ||
6975 | 1. None of the sections have been moved. | |
6976 | In this case we can continue to use the segment LMA from the | |
6977 | input BFD. | |
6978 | ||
6979 | 2. All of the sections have been moved by the same amount. | |
6980 | In this case we can change the segment's LMA to match the LMA | |
6981 | of the first section. | |
6982 | ||
6983 | 3. Some of the sections have been moved, others have not. | |
6984 | In this case those sections which have not been moved can be | |
6985 | placed in the current segment which will have to have its size, | |
6986 | and possibly its LMA changed, and a new segment or segments will | |
6987 | have to be created to contain the other sections. | |
6988 | ||
b5f852ea | 6989 | 4. The sections have been moved, but not by the same amount. |
252b5132 RH |
6990 | In this case we can change the segment's LMA to match the LMA |
6991 | of the first section and we will have to create a new segment | |
6992 | or segments to contain the other sections. | |
6993 | ||
6994 | In order to save time, we allocate an array to hold the section | |
6995 | pointers that we are interested in. As these sections get assigned | |
6996 | to a segment, they are removed from this array. */ | |
6997 | ||
a50b1753 | 6998 | sections = (asection **) bfd_malloc2 (section_count, sizeof (asection *)); |
252b5132 | 6999 | if (sections == NULL) |
b34976b6 | 7000 | return FALSE; |
252b5132 RH |
7001 | |
7002 | /* Step One: Scan for segment vs section LMA conflicts. | |
7003 | Also add the sections to the section array allocated above. | |
7004 | Also add the sections to the current segment. In the common | |
7005 | case, where the sections have not been moved, this means that | |
7006 | we have completely filled the segment, and there is nothing | |
7007 | more to do. */ | |
252b5132 | 7008 | isec = 0; |
9933dc52 AM |
7009 | matching_lma = NULL; |
7010 | suggested_lma = NULL; | |
252b5132 | 7011 | |
461c4b2e | 7012 | for (section = first_section, j = 0; |
bc67d8a6 NC |
7013 | section != NULL; |
7014 | section = section->next) | |
252b5132 | 7015 | { |
caf47ea6 | 7016 | if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed)) |
c0f7859b | 7017 | { |
bc67d8a6 NC |
7018 | output_section = section->output_section; |
7019 | ||
0067a569 | 7020 | sections[j++] = section; |
252b5132 RH |
7021 | |
7022 | /* The Solaris native linker always sets p_paddr to 0. | |
7023 | We try to catch that case here, and set it to the | |
5e8d7549 NC |
7024 | correct value. Note - some backends require that |
7025 | p_paddr be left as zero. */ | |
5c44b38e | 7026 | if (!p_paddr_valid |
4455705d | 7027 | && segment->p_vaddr != 0 |
0067a569 | 7028 | && !bed->want_p_paddr_set_to_zero |
252b5132 | 7029 | && isec == 0 |
bc67d8a6 | 7030 | && output_section->lma != 0 |
9933dc52 AM |
7031 | && (align_power (segment->p_vaddr |
7032 | + (map->includes_filehdr | |
7033 | ? iehdr->e_ehsize : 0) | |
7034 | + (map->includes_phdrs | |
7035 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7036 | : 0), | |
7037 | output_section->alignment_power) | |
7038 | == output_section->vma)) | |
bc67d8a6 | 7039 | map->p_paddr = segment->p_vaddr; |
252b5132 RH |
7040 | |
7041 | /* Match up the physical address of the segment with the | |
7042 | LMA address of the output section. */ | |
bc67d8a6 | 7043 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
5e8d7549 | 7044 | || IS_COREFILE_NOTE (segment, section) |
0067a569 AM |
7045 | || (bed->want_p_paddr_set_to_zero |
7046 | && IS_CONTAINED_BY_VMA (output_section, segment))) | |
252b5132 | 7047 | { |
9933dc52 AM |
7048 | if (matching_lma == NULL |
7049 | || output_section->lma < matching_lma->lma) | |
7050 | matching_lma = output_section; | |
252b5132 RH |
7051 | |
7052 | /* We assume that if the section fits within the segment | |
bc67d8a6 | 7053 | then it does not overlap any other section within that |
252b5132 | 7054 | segment. */ |
0067a569 AM |
7055 | map->sections[isec++] = output_section; |
7056 | } | |
9933dc52 AM |
7057 | else if (suggested_lma == NULL) |
7058 | suggested_lma = output_section; | |
147d51c2 L |
7059 | |
7060 | if (j == section_count) | |
7061 | break; | |
252b5132 RH |
7062 | } |
7063 | } | |
7064 | ||
bc67d8a6 | 7065 | BFD_ASSERT (j == section_count); |
252b5132 RH |
7066 | |
7067 | /* Step Two: Adjust the physical address of the current segment, | |
7068 | if necessary. */ | |
bc67d8a6 | 7069 | if (isec == section_count) |
252b5132 RH |
7070 | { |
7071 | /* All of the sections fitted within the segment as currently | |
7072 | specified. This is the default case. Add the segment to | |
7073 | the list of built segments and carry on to process the next | |
7074 | program header in the input BFD. */ | |
bc67d8a6 | 7075 | map->count = section_count; |
c044fabd KH |
7076 | *pointer_to_map = map; |
7077 | pointer_to_map = &map->next; | |
08a40648 | 7078 | |
5c44b38e AM |
7079 | if (p_paddr_valid |
7080 | && !bed->want_p_paddr_set_to_zero | |
9933dc52 | 7081 | && matching_lma->lma != map->p_paddr |
5c44b38e AM |
7082 | && !map->includes_filehdr |
7083 | && !map->includes_phdrs) | |
3271a814 NS |
7084 | /* There is some padding before the first section in the |
7085 | segment. So, we must account for that in the output | |
7086 | segment's vma. */ | |
5d695627 | 7087 | map->p_vaddr_offset = map->p_paddr - matching_lma->lma; |
08a40648 | 7088 | |
252b5132 RH |
7089 | free (sections); |
7090 | continue; | |
7091 | } | |
252b5132 RH |
7092 | else |
7093 | { | |
9933dc52 AM |
7094 | /* Change the current segment's physical address to match |
7095 | the LMA of the first section that fitted, or if no | |
7096 | section fitted, the first section. */ | |
7097 | if (matching_lma == NULL) | |
7098 | matching_lma = suggested_lma; | |
7099 | ||
7100 | map->p_paddr = matching_lma->lma; | |
72730e0c | 7101 | |
bc67d8a6 NC |
7102 | /* Offset the segment physical address from the lma |
7103 | to allow for space taken up by elf headers. */ | |
9933dc52 | 7104 | if (map->includes_phdrs) |
010c8431 | 7105 | { |
9933dc52 AM |
7106 | map->p_paddr -= iehdr->e_phnum * iehdr->e_phentsize; |
7107 | ||
7108 | /* iehdr->e_phnum is just an estimate of the number | |
7109 | of program headers that we will need. Make a note | |
7110 | here of the number we used and the segment we chose | |
7111 | to hold these headers, so that we can adjust the | |
7112 | offset when we know the correct value. */ | |
7113 | phdr_adjust_num = iehdr->e_phnum; | |
7114 | phdr_adjust_seg = map; | |
010c8431 | 7115 | } |
252b5132 | 7116 | |
9933dc52 | 7117 | if (map->includes_filehdr) |
bc67d8a6 | 7118 | { |
9933dc52 AM |
7119 | bfd_vma align = (bfd_vma) 1 << matching_lma->alignment_power; |
7120 | map->p_paddr -= iehdr->e_ehsize; | |
7121 | /* We've subtracted off the size of headers from the | |
7122 | first section lma, but there may have been some | |
7123 | alignment padding before that section too. Try to | |
7124 | account for that by adjusting the segment lma down to | |
7125 | the same alignment. */ | |
7126 | if (segment->p_align != 0 && segment->p_align < align) | |
7127 | align = segment->p_align; | |
7128 | map->p_paddr &= -align; | |
bc67d8a6 | 7129 | } |
252b5132 RH |
7130 | } |
7131 | ||
7132 | /* Step Three: Loop over the sections again, this time assigning | |
caf47ea6 | 7133 | those that fit to the current segment and removing them from the |
252b5132 RH |
7134 | sections array; but making sure not to leave large gaps. Once all |
7135 | possible sections have been assigned to the current segment it is | |
7136 | added to the list of built segments and if sections still remain | |
7137 | to be assigned, a new segment is constructed before repeating | |
7138 | the loop. */ | |
7139 | isec = 0; | |
7140 | do | |
7141 | { | |
bc67d8a6 | 7142 | map->count = 0; |
9933dc52 | 7143 | suggested_lma = NULL; |
252b5132 RH |
7144 | |
7145 | /* Fill the current segment with sections that fit. */ | |
bc67d8a6 | 7146 | for (j = 0; j < section_count; j++) |
252b5132 | 7147 | { |
bc67d8a6 | 7148 | section = sections[j]; |
252b5132 | 7149 | |
bc67d8a6 | 7150 | if (section == NULL) |
252b5132 RH |
7151 | continue; |
7152 | ||
bc67d8a6 | 7153 | output_section = section->output_section; |
252b5132 | 7154 | |
bc67d8a6 | 7155 | BFD_ASSERT (output_section != NULL); |
c044fabd | 7156 | |
bc67d8a6 NC |
7157 | if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr) |
7158 | || IS_COREFILE_NOTE (segment, section)) | |
252b5132 | 7159 | { |
bc67d8a6 | 7160 | if (map->count == 0) |
252b5132 RH |
7161 | { |
7162 | /* If the first section in a segment does not start at | |
bc67d8a6 NC |
7163 | the beginning of the segment, then something is |
7164 | wrong. */ | |
9933dc52 AM |
7165 | if (align_power (map->p_paddr |
7166 | + (map->includes_filehdr | |
7167 | ? iehdr->e_ehsize : 0) | |
7168 | + (map->includes_phdrs | |
7169 | ? iehdr->e_phnum * iehdr->e_phentsize | |
7170 | : 0), | |
7171 | output_section->alignment_power) | |
7172 | != output_section->lma) | |
252b5132 RH |
7173 | abort (); |
7174 | } | |
7175 | else | |
7176 | { | |
0067a569 | 7177 | asection *prev_sec; |
252b5132 | 7178 | |
bc67d8a6 | 7179 | prev_sec = map->sections[map->count - 1]; |
252b5132 RH |
7180 | |
7181 | /* If the gap between the end of the previous section | |
bc67d8a6 NC |
7182 | and the start of this section is more than |
7183 | maxpagesize then we need to start a new segment. */ | |
eea6121a | 7184 | if ((BFD_ALIGN (prev_sec->lma + prev_sec->size, |
079e9a2f | 7185 | maxpagesize) |
caf47ea6 | 7186 | < BFD_ALIGN (output_section->lma, maxpagesize)) |
0067a569 | 7187 | || (prev_sec->lma + prev_sec->size |
079e9a2f | 7188 | > output_section->lma)) |
252b5132 | 7189 | { |
9933dc52 AM |
7190 | if (suggested_lma == NULL) |
7191 | suggested_lma = output_section; | |
252b5132 RH |
7192 | |
7193 | continue; | |
7194 | } | |
7195 | } | |
7196 | ||
bc67d8a6 | 7197 | map->sections[map->count++] = output_section; |
252b5132 RH |
7198 | ++isec; |
7199 | sections[j] = NULL; | |
9933dc52 AM |
7200 | if (segment->p_type == PT_LOAD) |
7201 | section->segment_mark = TRUE; | |
0067a569 | 7202 | } |
9933dc52 AM |
7203 | else if (suggested_lma == NULL) |
7204 | suggested_lma = output_section; | |
252b5132 RH |
7205 | } |
7206 | ||
beab4532 NC |
7207 | /* PR 23932. A corrupt input file may contain sections that cannot |
7208 | be assigned to any segment - because for example they have a | |
7209 | negative size - or segments that do not contain any sections. */ | |
7210 | if (map->count == 0) | |
7211 | { | |
7212 | bfd_set_error (bfd_error_bad_value); | |
7213 | free (sections); | |
7214 | return FALSE; | |
7215 | } | |
252b5132 RH |
7216 | |
7217 | /* Add the current segment to the list of built segments. */ | |
c044fabd KH |
7218 | *pointer_to_map = map; |
7219 | pointer_to_map = &map->next; | |
252b5132 | 7220 | |
bc67d8a6 | 7221 | if (isec < section_count) |
252b5132 RH |
7222 | { |
7223 | /* We still have not allocated all of the sections to | |
7224 | segments. Create a new segment here, initialise it | |
7225 | and carry on looping. */ | |
00bee008 AM |
7226 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7227 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
5964fc3a | 7228 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
bc67d8a6 | 7229 | if (map == NULL) |
5ed6aba4 NC |
7230 | { |
7231 | free (sections); | |
7232 | return FALSE; | |
7233 | } | |
252b5132 RH |
7234 | |
7235 | /* Initialise the fields of the segment map. Set the physical | |
7236 | physical address to the LMA of the first section that has | |
7237 | not yet been assigned. */ | |
0067a569 AM |
7238 | map->next = NULL; |
7239 | map->p_type = segment->p_type; | |
7240 | map->p_flags = segment->p_flags; | |
7241 | map->p_flags_valid = 1; | |
9933dc52 | 7242 | map->p_paddr = suggested_lma->lma; |
5c44b38e | 7243 | map->p_paddr_valid = p_paddr_valid; |
bc67d8a6 | 7244 | map->includes_filehdr = 0; |
0067a569 | 7245 | map->includes_phdrs = 0; |
252b5132 RH |
7246 | } |
7247 | } | |
bc67d8a6 | 7248 | while (isec < section_count); |
252b5132 RH |
7249 | |
7250 | free (sections); | |
7251 | } | |
7252 | ||
12bd6957 | 7253 | elf_seg_map (obfd) = map_first; |
bc67d8a6 NC |
7254 | |
7255 | /* If we had to estimate the number of program headers that were | |
9ad5cbcf | 7256 | going to be needed, then check our estimate now and adjust |
bc67d8a6 NC |
7257 | the offset if necessary. */ |
7258 | if (phdr_adjust_seg != NULL) | |
7259 | { | |
7260 | unsigned int count; | |
c044fabd | 7261 | |
bc67d8a6 | 7262 | for (count = 0, map = map_first; map != NULL; map = map->next) |
c044fabd | 7263 | count++; |
252b5132 | 7264 | |
bc67d8a6 NC |
7265 | if (count > phdr_adjust_num) |
7266 | phdr_adjust_seg->p_paddr | |
7267 | -= (count - phdr_adjust_num) * iehdr->e_phentsize; | |
9933dc52 AM |
7268 | |
7269 | for (map = map_first; map != NULL; map = map->next) | |
7270 | if (map->p_type == PT_PHDR) | |
7271 | { | |
7272 | bfd_vma adjust | |
7273 | = phdr_adjust_seg->includes_filehdr ? iehdr->e_ehsize : 0; | |
7274 | map->p_paddr = phdr_adjust_seg->p_paddr + adjust; | |
7275 | break; | |
7276 | } | |
bc67d8a6 | 7277 | } |
c044fabd | 7278 | |
bc67d8a6 | 7279 | #undef SEGMENT_END |
eecdbe52 | 7280 | #undef SECTION_SIZE |
bc67d8a6 NC |
7281 | #undef IS_CONTAINED_BY_VMA |
7282 | #undef IS_CONTAINED_BY_LMA | |
0efc80c8 | 7283 | #undef IS_NOTE |
252b5132 | 7284 | #undef IS_COREFILE_NOTE |
bc67d8a6 | 7285 | #undef IS_SOLARIS_PT_INTERP |
9f17e2a6 | 7286 | #undef IS_SECTION_IN_INPUT_SEGMENT |
bc67d8a6 NC |
7287 | #undef INCLUDE_SECTION_IN_SEGMENT |
7288 | #undef SEGMENT_AFTER_SEGMENT | |
7289 | #undef SEGMENT_OVERLAPS | |
b34976b6 | 7290 | return TRUE; |
252b5132 RH |
7291 | } |
7292 | ||
84d1d650 L |
7293 | /* Copy ELF program header information. */ |
7294 | ||
7295 | static bfd_boolean | |
7296 | copy_elf_program_header (bfd *ibfd, bfd *obfd) | |
7297 | { | |
7298 | Elf_Internal_Ehdr *iehdr; | |
7299 | struct elf_segment_map *map; | |
7300 | struct elf_segment_map *map_first; | |
7301 | struct elf_segment_map **pointer_to_map; | |
7302 | Elf_Internal_Phdr *segment; | |
7303 | unsigned int i; | |
7304 | unsigned int num_segments; | |
7305 | bfd_boolean phdr_included = FALSE; | |
88967714 | 7306 | bfd_boolean p_paddr_valid; |
84d1d650 L |
7307 | |
7308 | iehdr = elf_elfheader (ibfd); | |
7309 | ||
7310 | map_first = NULL; | |
7311 | pointer_to_map = &map_first; | |
7312 | ||
88967714 AM |
7313 | /* If all the segment p_paddr fields are zero, don't set |
7314 | map->p_paddr_valid. */ | |
7315 | p_paddr_valid = FALSE; | |
84d1d650 | 7316 | num_segments = elf_elfheader (ibfd)->e_phnum; |
88967714 AM |
7317 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7318 | i < num_segments; | |
7319 | i++, segment++) | |
7320 | if (segment->p_paddr != 0) | |
7321 | { | |
7322 | p_paddr_valid = TRUE; | |
7323 | break; | |
7324 | } | |
7325 | ||
84d1d650 L |
7326 | for (i = 0, segment = elf_tdata (ibfd)->phdr; |
7327 | i < num_segments; | |
7328 | i++, segment++) | |
7329 | { | |
7330 | asection *section; | |
7331 | unsigned int section_count; | |
7332 | bfd_size_type amt; | |
7333 | Elf_Internal_Shdr *this_hdr; | |
53020534 | 7334 | asection *first_section = NULL; |
a76e6f2f | 7335 | asection *lowest_section; |
2542e49e | 7336 | bfd_boolean no_contents = TRUE; |
84d1d650 | 7337 | |
84d1d650 L |
7338 | /* Compute how many sections are in this segment. */ |
7339 | for (section = ibfd->sections, section_count = 0; | |
7340 | section != NULL; | |
7341 | section = section->next) | |
7342 | { | |
7343 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7344 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
3271a814 | 7345 | { |
a76e6f2f AM |
7346 | if (first_section == NULL) |
7347 | first_section = section; | |
2542e49e JL |
7348 | if (elf_section_type (section) != SHT_NOBITS) |
7349 | no_contents = FALSE; | |
3271a814 NS |
7350 | section_count++; |
7351 | } | |
84d1d650 L |
7352 | } |
7353 | ||
7354 | /* Allocate a segment map big enough to contain | |
7355 | all of the sections we have selected. */ | |
00bee008 AM |
7356 | amt = sizeof (struct elf_segment_map) - sizeof (asection *); |
7357 | amt += (bfd_size_type) section_count * sizeof (asection *); | |
a50b1753 | 7358 | map = (struct elf_segment_map *) bfd_zalloc (obfd, amt); |
84d1d650 L |
7359 | if (map == NULL) |
7360 | return FALSE; | |
7361 | ||
7362 | /* Initialize the fields of the output segment map with the | |
7363 | input segment. */ | |
7364 | map->next = NULL; | |
7365 | map->p_type = segment->p_type; | |
7366 | map->p_flags = segment->p_flags; | |
7367 | map->p_flags_valid = 1; | |
7368 | map->p_paddr = segment->p_paddr; | |
88967714 | 7369 | map->p_paddr_valid = p_paddr_valid; |
3f570048 AM |
7370 | map->p_align = segment->p_align; |
7371 | map->p_align_valid = 1; | |
3271a814 | 7372 | map->p_vaddr_offset = 0; |
84d1d650 | 7373 | |
04c3a755 NS |
7374 | if (map->p_type == PT_GNU_RELRO |
7375 | || map->p_type == PT_GNU_STACK) | |
b10a8ae0 L |
7376 | { |
7377 | /* The PT_GNU_RELRO segment may contain the first a few | |
7378 | bytes in the .got.plt section even if the whole .got.plt | |
7379 | section isn't in the PT_GNU_RELRO segment. We won't | |
04c3a755 NS |
7380 | change the size of the PT_GNU_RELRO segment. |
7381 | Similarly, PT_GNU_STACK size is significant on uclinux | |
7382 | systems. */ | |
9433b9b1 | 7383 | map->p_size = segment->p_memsz; |
b10a8ae0 L |
7384 | map->p_size_valid = 1; |
7385 | } | |
7386 | ||
84d1d650 L |
7387 | /* Determine if this segment contains the ELF file header |
7388 | and if it contains the program headers themselves. */ | |
7389 | map->includes_filehdr = (segment->p_offset == 0 | |
7390 | && segment->p_filesz >= iehdr->e_ehsize); | |
7391 | ||
7392 | map->includes_phdrs = 0; | |
7393 | if (! phdr_included || segment->p_type != PT_LOAD) | |
7394 | { | |
7395 | map->includes_phdrs = | |
7396 | (segment->p_offset <= (bfd_vma) iehdr->e_phoff | |
7397 | && (segment->p_offset + segment->p_filesz | |
7398 | >= ((bfd_vma) iehdr->e_phoff | |
7399 | + iehdr->e_phnum * iehdr->e_phentsize))); | |
7400 | ||
7401 | if (segment->p_type == PT_LOAD && map->includes_phdrs) | |
7402 | phdr_included = TRUE; | |
7403 | } | |
7404 | ||
bbefd0a9 | 7405 | lowest_section = NULL; |
84d1d650 L |
7406 | if (section_count != 0) |
7407 | { | |
7408 | unsigned int isec = 0; | |
7409 | ||
53020534 | 7410 | for (section = first_section; |
84d1d650 L |
7411 | section != NULL; |
7412 | section = section->next) | |
7413 | { | |
7414 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7415 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
53020534 L |
7416 | { |
7417 | map->sections[isec++] = section->output_section; | |
a76e6f2f AM |
7418 | if ((section->flags & SEC_ALLOC) != 0) |
7419 | { | |
7420 | bfd_vma seg_off; | |
7421 | ||
bbefd0a9 AM |
7422 | if (lowest_section == NULL |
7423 | || section->lma < lowest_section->lma) | |
fb8a5684 AM |
7424 | lowest_section = section; |
7425 | ||
a76e6f2f AM |
7426 | /* Section lmas are set up from PT_LOAD header |
7427 | p_paddr in _bfd_elf_make_section_from_shdr. | |
7428 | If this header has a p_paddr that disagrees | |
7429 | with the section lma, flag the p_paddr as | |
7430 | invalid. */ | |
7431 | if ((section->flags & SEC_LOAD) != 0) | |
7432 | seg_off = this_hdr->sh_offset - segment->p_offset; | |
7433 | else | |
7434 | seg_off = this_hdr->sh_addr - segment->p_vaddr; | |
7435 | if (section->lma - segment->p_paddr != seg_off) | |
7436 | map->p_paddr_valid = FALSE; | |
7437 | } | |
53020534 L |
7438 | if (isec == section_count) |
7439 | break; | |
7440 | } | |
84d1d650 L |
7441 | } |
7442 | } | |
7443 | ||
a76e6f2f | 7444 | if (map->includes_filehdr && lowest_section != NULL) |
2542e49e JL |
7445 | { |
7446 | /* Try to keep the space used by the headers plus any | |
7447 | padding fixed. If there are sections with file contents | |
7448 | in this segment then the lowest sh_offset is the best | |
7449 | guess. Otherwise the segment only has file contents for | |
7450 | the headers, and p_filesz is the best guess. */ | |
7451 | if (no_contents) | |
7452 | map->header_size = segment->p_filesz; | |
7453 | else | |
7454 | map->header_size = lowest_section->filepos; | |
7455 | } | |
d324f6d6 | 7456 | |
5d695627 AM |
7457 | if (section_count == 0) |
7458 | map->p_vaddr_offset = segment->p_vaddr; | |
7459 | else if (!map->includes_phdrs | |
7460 | && !map->includes_filehdr | |
7461 | && map->p_paddr_valid) | |
7462 | /* Account for padding before the first section. */ | |
7463 | map->p_vaddr_offset = (segment->p_paddr | |
7464 | - (lowest_section ? lowest_section->lma : 0)); | |
a76e6f2f | 7465 | |
84d1d650 L |
7466 | map->count = section_count; |
7467 | *pointer_to_map = map; | |
7468 | pointer_to_map = &map->next; | |
7469 | } | |
7470 | ||
12bd6957 | 7471 | elf_seg_map (obfd) = map_first; |
84d1d650 L |
7472 | return TRUE; |
7473 | } | |
7474 | ||
7475 | /* Copy private BFD data. This copies or rewrites ELF program header | |
7476 | information. */ | |
7477 | ||
7478 | static bfd_boolean | |
7479 | copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
7480 | { | |
84d1d650 L |
7481 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7482 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7483 | return TRUE; | |
7484 | ||
7485 | if (elf_tdata (ibfd)->phdr == NULL) | |
7486 | return TRUE; | |
7487 | ||
7488 | if (ibfd->xvec == obfd->xvec) | |
7489 | { | |
cb3ff1e5 NC |
7490 | /* Check to see if any sections in the input BFD |
7491 | covered by ELF program header have changed. */ | |
d55ce4e2 | 7492 | Elf_Internal_Phdr *segment; |
84d1d650 L |
7493 | asection *section, *osec; |
7494 | unsigned int i, num_segments; | |
7495 | Elf_Internal_Shdr *this_hdr; | |
147d51c2 L |
7496 | const struct elf_backend_data *bed; |
7497 | ||
7498 | bed = get_elf_backend_data (ibfd); | |
7499 | ||
7500 | /* Regenerate the segment map if p_paddr is set to 0. */ | |
7501 | if (bed->want_p_paddr_set_to_zero) | |
7502 | goto rewrite; | |
84d1d650 L |
7503 | |
7504 | /* Initialize the segment mark field. */ | |
7505 | for (section = obfd->sections; section != NULL; | |
7506 | section = section->next) | |
7507 | section->segment_mark = FALSE; | |
7508 | ||
7509 | num_segments = elf_elfheader (ibfd)->e_phnum; | |
7510 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7511 | i < num_segments; | |
7512 | i++, segment++) | |
7513 | { | |
5f6999aa NC |
7514 | /* PR binutils/3535. The Solaris linker always sets the p_paddr |
7515 | and p_memsz fields of special segments (DYNAMIC, INTERP) to 0 | |
7516 | which severly confuses things, so always regenerate the segment | |
7517 | map in this case. */ | |
7518 | if (segment->p_paddr == 0 | |
7519 | && segment->p_memsz == 0 | |
7520 | && (segment->p_type == PT_INTERP || segment->p_type == PT_DYNAMIC)) | |
cb3ff1e5 | 7521 | goto rewrite; |
5f6999aa | 7522 | |
84d1d650 L |
7523 | for (section = ibfd->sections; |
7524 | section != NULL; section = section->next) | |
7525 | { | |
7526 | /* We mark the output section so that we know it comes | |
7527 | from the input BFD. */ | |
7528 | osec = section->output_section; | |
7529 | if (osec) | |
7530 | osec->segment_mark = TRUE; | |
7531 | ||
7532 | /* Check if this section is covered by the segment. */ | |
7533 | this_hdr = &(elf_section_data(section)->this_hdr); | |
f4638467 | 7534 | if (ELF_SECTION_IN_SEGMENT (this_hdr, segment)) |
84d1d650 L |
7535 | { |
7536 | /* FIXME: Check if its output section is changed or | |
7537 | removed. What else do we need to check? */ | |
7538 | if (osec == NULL | |
7539 | || section->flags != osec->flags | |
7540 | || section->lma != osec->lma | |
7541 | || section->vma != osec->vma | |
7542 | || section->size != osec->size | |
7543 | || section->rawsize != osec->rawsize | |
7544 | || section->alignment_power != osec->alignment_power) | |
7545 | goto rewrite; | |
7546 | } | |
7547 | } | |
7548 | } | |
7549 | ||
cb3ff1e5 | 7550 | /* Check to see if any output section do not come from the |
84d1d650 L |
7551 | input BFD. */ |
7552 | for (section = obfd->sections; section != NULL; | |
7553 | section = section->next) | |
7554 | { | |
535b785f | 7555 | if (!section->segment_mark) |
84d1d650 L |
7556 | goto rewrite; |
7557 | else | |
7558 | section->segment_mark = FALSE; | |
7559 | } | |
7560 | ||
7561 | return copy_elf_program_header (ibfd, obfd); | |
7562 | } | |
7563 | ||
7564 | rewrite: | |
f1d85785 L |
7565 | if (ibfd->xvec == obfd->xvec) |
7566 | { | |
7567 | /* When rewriting program header, set the output maxpagesize to | |
7568 | the maximum alignment of input PT_LOAD segments. */ | |
7569 | Elf_Internal_Phdr *segment; | |
7570 | unsigned int i; | |
7571 | unsigned int num_segments = elf_elfheader (ibfd)->e_phnum; | |
7572 | bfd_vma maxpagesize = 0; | |
7573 | ||
7574 | for (i = 0, segment = elf_tdata (ibfd)->phdr; | |
7575 | i < num_segments; | |
7576 | i++, segment++) | |
7577 | if (segment->p_type == PT_LOAD | |
7578 | && maxpagesize < segment->p_align) | |
c86934ce NC |
7579 | { |
7580 | /* PR 17512: file: f17299af. */ | |
7581 | if (segment->p_align > (bfd_vma) 1 << ((sizeof (bfd_vma) * 8) - 2)) | |
695344c0 | 7582 | /* xgettext:c-format */ |
2dcf00ce AM |
7583 | _bfd_error_handler (_("%pB: warning: segment alignment of %#" |
7584 | PRIx64 " is too large"), | |
7585 | ibfd, (uint64_t) segment->p_align); | |
c86934ce NC |
7586 | else |
7587 | maxpagesize = segment->p_align; | |
7588 | } | |
f1d85785 L |
7589 | |
7590 | if (maxpagesize != get_elf_backend_data (obfd)->maxpagesize) | |
7591 | bfd_emul_set_maxpagesize (bfd_get_target (obfd), maxpagesize); | |
7592 | } | |
7593 | ||
84d1d650 L |
7594 | return rewrite_elf_program_header (ibfd, obfd); |
7595 | } | |
7596 | ||
ccd2ec6a L |
7597 | /* Initialize private output section information from input section. */ |
7598 | ||
7599 | bfd_boolean | |
7600 | _bfd_elf_init_private_section_data (bfd *ibfd, | |
7601 | asection *isec, | |
7602 | bfd *obfd, | |
7603 | asection *osec, | |
7604 | struct bfd_link_info *link_info) | |
7605 | ||
7606 | { | |
7607 | Elf_Internal_Shdr *ihdr, *ohdr; | |
0e1862bb L |
7608 | bfd_boolean final_link = (link_info != NULL |
7609 | && !bfd_link_relocatable (link_info)); | |
ccd2ec6a L |
7610 | |
7611 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7612 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
7613 | return TRUE; | |
7614 | ||
ba85c43e NC |
7615 | BFD_ASSERT (elf_section_data (osec) != NULL); |
7616 | ||
dfa7b0b8 AM |
7617 | /* For objcopy and relocatable link, don't copy the output ELF |
7618 | section type from input if the output BFD section flags have been | |
7619 | set to something different. For a final link allow some flags | |
7620 | that the linker clears to differ. */ | |
42bb2e33 | 7621 | if (elf_section_type (osec) == SHT_NULL |
dfa7b0b8 AM |
7622 | && (osec->flags == isec->flags |
7623 | || (final_link | |
7624 | && ((osec->flags ^ isec->flags) | |
0814be7d | 7625 | & ~(SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_RELOC)) == 0))) |
42bb2e33 | 7626 | elf_section_type (osec) = elf_section_type (isec); |
d270463e L |
7627 | |
7628 | /* FIXME: Is this correct for all OS/PROC specific flags? */ | |
7629 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7630 | & (SHF_MASKOS | SHF_MASKPROC)); | |
ccd2ec6a | 7631 | |
a91e1603 L |
7632 | /* Copy sh_info from input for mbind section. */ |
7633 | if (elf_section_flags (isec) & SHF_GNU_MBIND) | |
7634 | elf_section_data (osec)->this_hdr.sh_info | |
7635 | = elf_section_data (isec)->this_hdr.sh_info; | |
7636 | ||
ccd2ec6a L |
7637 | /* Set things up for objcopy and relocatable link. The output |
7638 | SHT_GROUP section will have its elf_next_in_group pointing back | |
7639 | to the input group members. Ignore linker created group section. | |
7640 | See elfNN_ia64_object_p in elfxx-ia64.c. */ | |
7bdf4127 AB |
7641 | if ((link_info == NULL |
7642 | || !link_info->resolve_section_groups) | |
7643 | && (elf_sec_group (isec) == NULL | |
7644 | || (elf_sec_group (isec)->flags & SEC_LINKER_CREATED) == 0)) | |
ccd2ec6a | 7645 | { |
7bdf4127 AB |
7646 | if (elf_section_flags (isec) & SHF_GROUP) |
7647 | elf_section_flags (osec) |= SHF_GROUP; | |
7648 | elf_next_in_group (osec) = elf_next_in_group (isec); | |
7649 | elf_section_data (osec)->group = elf_section_data (isec)->group; | |
ccd2ec6a L |
7650 | } |
7651 | ||
7bdf4127 AB |
7652 | /* If not decompress, preserve SHF_COMPRESSED. */ |
7653 | if (!final_link && (ibfd->flags & BFD_DECOMPRESS) == 0) | |
7654 | elf_section_flags (osec) |= (elf_section_flags (isec) | |
7655 | & SHF_COMPRESSED); | |
7656 | ||
ccd2ec6a L |
7657 | ihdr = &elf_section_data (isec)->this_hdr; |
7658 | ||
7659 | /* We need to handle elf_linked_to_section for SHF_LINK_ORDER. We | |
7660 | don't use the output section of the linked-to section since it | |
7661 | may be NULL at this point. */ | |
7662 | if ((ihdr->sh_flags & SHF_LINK_ORDER) != 0) | |
7663 | { | |
7664 | ohdr = &elf_section_data (osec)->this_hdr; | |
7665 | ohdr->sh_flags |= SHF_LINK_ORDER; | |
7666 | elf_linked_to_section (osec) = elf_linked_to_section (isec); | |
7667 | } | |
7668 | ||
7669 | osec->use_rela_p = isec->use_rela_p; | |
7670 | ||
7671 | return TRUE; | |
7672 | } | |
7673 | ||
252b5132 RH |
7674 | /* Copy private section information. This copies over the entsize |
7675 | field, and sometimes the info field. */ | |
7676 | ||
b34976b6 | 7677 | bfd_boolean |
217aa764 AM |
7678 | _bfd_elf_copy_private_section_data (bfd *ibfd, |
7679 | asection *isec, | |
7680 | bfd *obfd, | |
7681 | asection *osec) | |
252b5132 RH |
7682 | { |
7683 | Elf_Internal_Shdr *ihdr, *ohdr; | |
7684 | ||
7685 | if (ibfd->xvec->flavour != bfd_target_elf_flavour | |
7686 | || obfd->xvec->flavour != bfd_target_elf_flavour) | |
b34976b6 | 7687 | return TRUE; |
252b5132 | 7688 | |
252b5132 RH |
7689 | ihdr = &elf_section_data (isec)->this_hdr; |
7690 | ohdr = &elf_section_data (osec)->this_hdr; | |
7691 | ||
7692 | ohdr->sh_entsize = ihdr->sh_entsize; | |
7693 | ||
7694 | if (ihdr->sh_type == SHT_SYMTAB | |
7695 | || ihdr->sh_type == SHT_DYNSYM | |
7696 | || ihdr->sh_type == SHT_GNU_verneed | |
7697 | || ihdr->sh_type == SHT_GNU_verdef) | |
7698 | ohdr->sh_info = ihdr->sh_info; | |
7699 | ||
ccd2ec6a L |
7700 | return _bfd_elf_init_private_section_data (ibfd, isec, obfd, osec, |
7701 | NULL); | |
252b5132 RH |
7702 | } |
7703 | ||
d0bf826b AM |
7704 | /* Look at all the SHT_GROUP sections in IBFD, making any adjustments |
7705 | necessary if we are removing either the SHT_GROUP section or any of | |
7706 | the group member sections. DISCARDED is the value that a section's | |
7707 | output_section has if the section will be discarded, NULL when this | |
7708 | function is called from objcopy, bfd_abs_section_ptr when called | |
7709 | from the linker. */ | |
80fccad2 BW |
7710 | |
7711 | bfd_boolean | |
d0bf826b | 7712 | _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded) |
80fccad2 | 7713 | { |
30288845 AM |
7714 | asection *isec; |
7715 | ||
30288845 | 7716 | for (isec = ibfd->sections; isec != NULL; isec = isec->next) |
415f38a6 | 7717 | if (elf_section_type (isec) == SHT_GROUP) |
30288845 AM |
7718 | { |
7719 | asection *first = elf_next_in_group (isec); | |
7720 | asection *s = first; | |
d0bf826b AM |
7721 | bfd_size_type removed = 0; |
7722 | ||
30288845 AM |
7723 | while (s != NULL) |
7724 | { | |
415f38a6 AM |
7725 | /* If this member section is being output but the |
7726 | SHT_GROUP section is not, then clear the group info | |
7727 | set up by _bfd_elf_copy_private_section_data. */ | |
d0bf826b AM |
7728 | if (s->output_section != discarded |
7729 | && isec->output_section == discarded) | |
30288845 AM |
7730 | { |
7731 | elf_section_flags (s->output_section) &= ~SHF_GROUP; | |
7732 | elf_group_name (s->output_section) = NULL; | |
7733 | } | |
415f38a6 AM |
7734 | /* Conversely, if the member section is not being output |
7735 | but the SHT_GROUP section is, then adjust its size. */ | |
d0bf826b AM |
7736 | else if (s->output_section == discarded |
7737 | && isec->output_section != discarded) | |
6e5e9d58 AM |
7738 | { |
7739 | struct bfd_elf_section_data *elf_sec = elf_section_data (s); | |
7740 | removed += 4; | |
7741 | if (elf_sec->rel.hdr != NULL | |
7742 | && (elf_sec->rel.hdr->sh_flags & SHF_GROUP) != 0) | |
7743 | removed += 4; | |
7744 | if (elf_sec->rela.hdr != NULL | |
7745 | && (elf_sec->rela.hdr->sh_flags & SHF_GROUP) != 0) | |
7746 | removed += 4; | |
7747 | } | |
30288845 AM |
7748 | s = elf_next_in_group (s); |
7749 | if (s == first) | |
7750 | break; | |
7751 | } | |
d0bf826b AM |
7752 | if (removed != 0) |
7753 | { | |
7754 | if (discarded != NULL) | |
7755 | { | |
7756 | /* If we've been called for ld -r, then we need to | |
6e5e9d58 | 7757 | adjust the input section size. */ |
d0bf826b AM |
7758 | if (isec->rawsize == 0) |
7759 | isec->rawsize = isec->size; | |
7760 | isec->size = isec->rawsize - removed; | |
6e5e9d58 AM |
7761 | if (isec->size <= 4) |
7762 | { | |
7763 | isec->size = 0; | |
7764 | isec->flags |= SEC_EXCLUDE; | |
7765 | } | |
d0bf826b AM |
7766 | } |
7767 | else | |
7768 | { | |
7769 | /* Adjust the output section size when called from | |
7770 | objcopy. */ | |
7771 | isec->output_section->size -= removed; | |
6e5e9d58 AM |
7772 | if (isec->output_section->size <= 4) |
7773 | { | |
7774 | isec->output_section->size = 0; | |
7775 | isec->output_section->flags |= SEC_EXCLUDE; | |
7776 | } | |
d0bf826b AM |
7777 | } |
7778 | } | |
30288845 AM |
7779 | } |
7780 | ||
80fccad2 BW |
7781 | return TRUE; |
7782 | } | |
7783 | ||
d0bf826b AM |
7784 | /* Copy private header information. */ |
7785 | ||
7786 | bfd_boolean | |
7787 | _bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd) | |
7788 | { | |
7789 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7790 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
7791 | return TRUE; | |
7792 | ||
7793 | /* Copy over private BFD data if it has not already been copied. | |
7794 | This must be done here, rather than in the copy_private_bfd_data | |
7795 | entry point, because the latter is called after the section | |
7796 | contents have been set, which means that the program headers have | |
7797 | already been worked out. */ | |
12bd6957 | 7798 | if (elf_seg_map (obfd) == NULL && elf_tdata (ibfd)->phdr != NULL) |
d0bf826b AM |
7799 | { |
7800 | if (! copy_private_bfd_data (ibfd, obfd)) | |
7801 | return FALSE; | |
7802 | } | |
7803 | ||
7804 | return _bfd_elf_fixup_group_sections (ibfd, NULL); | |
7805 | } | |
7806 | ||
252b5132 RH |
7807 | /* Copy private symbol information. If this symbol is in a section |
7808 | which we did not map into a BFD section, try to map the section | |
7809 | index correctly. We use special macro definitions for the mapped | |
7810 | section indices; these definitions are interpreted by the | |
7811 | swap_out_syms function. */ | |
7812 | ||
9ad5cbcf AM |
7813 | #define MAP_ONESYMTAB (SHN_HIOS + 1) |
7814 | #define MAP_DYNSYMTAB (SHN_HIOS + 2) | |
7815 | #define MAP_STRTAB (SHN_HIOS + 3) | |
7816 | #define MAP_SHSTRTAB (SHN_HIOS + 4) | |
7817 | #define MAP_SYM_SHNDX (SHN_HIOS + 5) | |
252b5132 | 7818 | |
b34976b6 | 7819 | bfd_boolean |
217aa764 AM |
7820 | _bfd_elf_copy_private_symbol_data (bfd *ibfd, |
7821 | asymbol *isymarg, | |
7822 | bfd *obfd, | |
7823 | asymbol *osymarg) | |
252b5132 RH |
7824 | { |
7825 | elf_symbol_type *isym, *osym; | |
7826 | ||
7827 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
7828 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7829 | return TRUE; |
252b5132 RH |
7830 | |
7831 | isym = elf_symbol_from (ibfd, isymarg); | |
7832 | osym = elf_symbol_from (obfd, osymarg); | |
7833 | ||
7834 | if (isym != NULL | |
8424d8f5 | 7835 | && isym->internal_elf_sym.st_shndx != 0 |
252b5132 RH |
7836 | && osym != NULL |
7837 | && bfd_is_abs_section (isym->symbol.section)) | |
7838 | { | |
7839 | unsigned int shndx; | |
7840 | ||
7841 | shndx = isym->internal_elf_sym.st_shndx; | |
7842 | if (shndx == elf_onesymtab (ibfd)) | |
7843 | shndx = MAP_ONESYMTAB; | |
7844 | else if (shndx == elf_dynsymtab (ibfd)) | |
7845 | shndx = MAP_DYNSYMTAB; | |
12bd6957 | 7846 | else if (shndx == elf_strtab_sec (ibfd)) |
252b5132 | 7847 | shndx = MAP_STRTAB; |
12bd6957 | 7848 | else if (shndx == elf_shstrtab_sec (ibfd)) |
252b5132 | 7849 | shndx = MAP_SHSTRTAB; |
6a40cf0c | 7850 | else if (find_section_in_list (shndx, elf_symtab_shndx_list (ibfd))) |
9ad5cbcf | 7851 | shndx = MAP_SYM_SHNDX; |
252b5132 RH |
7852 | osym->internal_elf_sym.st_shndx = shndx; |
7853 | } | |
7854 | ||
b34976b6 | 7855 | return TRUE; |
252b5132 RH |
7856 | } |
7857 | ||
7858 | /* Swap out the symbols. */ | |
7859 | ||
b34976b6 | 7860 | static bfd_boolean |
217aa764 | 7861 | swap_out_syms (bfd *abfd, |
ef10c3ac | 7862 | struct elf_strtab_hash **sttp, |
217aa764 | 7863 | int relocatable_p) |
252b5132 | 7864 | { |
9c5bfbb7 | 7865 | const struct elf_backend_data *bed; |
079e9a2f AM |
7866 | int symcount; |
7867 | asymbol **syms; | |
ef10c3ac | 7868 | struct elf_strtab_hash *stt; |
079e9a2f | 7869 | Elf_Internal_Shdr *symtab_hdr; |
9ad5cbcf | 7870 | Elf_Internal_Shdr *symtab_shndx_hdr; |
079e9a2f | 7871 | Elf_Internal_Shdr *symstrtab_hdr; |
ef10c3ac | 7872 | struct elf_sym_strtab *symstrtab; |
f075ee0c AM |
7873 | bfd_byte *outbound_syms; |
7874 | bfd_byte *outbound_shndx; | |
ef10c3ac L |
7875 | unsigned long outbound_syms_index; |
7876 | unsigned long outbound_shndx_index; | |
079e9a2f | 7877 | int idx; |
12bd6957 | 7878 | unsigned int num_locals; |
079e9a2f | 7879 | bfd_size_type amt; |
174fd7f9 | 7880 | bfd_boolean name_local_sections; |
252b5132 | 7881 | |
12bd6957 | 7882 | if (!elf_map_symbols (abfd, &num_locals)) |
b34976b6 | 7883 | return FALSE; |
252b5132 | 7884 | |
c044fabd | 7885 | /* Dump out the symtabs. */ |
ef10c3ac | 7886 | stt = _bfd_elf_strtab_init (); |
079e9a2f | 7887 | if (stt == NULL) |
b34976b6 | 7888 | return FALSE; |
252b5132 | 7889 | |
079e9a2f AM |
7890 | bed = get_elf_backend_data (abfd); |
7891 | symcount = bfd_get_symcount (abfd); | |
7892 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7893 | symtab_hdr->sh_type = SHT_SYMTAB; | |
7894 | symtab_hdr->sh_entsize = bed->s->sizeof_sym; | |
7895 | symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1); | |
12bd6957 | 7896 | symtab_hdr->sh_info = num_locals + 1; |
72de5009 | 7897 | symtab_hdr->sh_addralign = (bfd_vma) 1 << bed->s->log_file_align; |
079e9a2f AM |
7898 | |
7899 | symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr; | |
7900 | symstrtab_hdr->sh_type = SHT_STRTAB; | |
7901 | ||
ef10c3ac | 7902 | /* Allocate buffer to swap out the .strtab section. */ |
7a6e0d89 AM |
7903 | symstrtab = (struct elf_sym_strtab *) bfd_malloc2 (symcount + 1, |
7904 | sizeof (*symstrtab)); | |
ef10c3ac L |
7905 | if (symstrtab == NULL) |
7906 | { | |
7907 | _bfd_elf_strtab_free (stt); | |
7908 | return FALSE; | |
7909 | } | |
7910 | ||
a50b1753 | 7911 | outbound_syms = (bfd_byte *) bfd_alloc2 (abfd, 1 + symcount, |
07d6d2b8 | 7912 | bed->s->sizeof_sym); |
079e9a2f | 7913 | if (outbound_syms == NULL) |
5ed6aba4 | 7914 | { |
ef10c3ac L |
7915 | error_return: |
7916 | _bfd_elf_strtab_free (stt); | |
7917 | free (symstrtab); | |
5ed6aba4 NC |
7918 | return FALSE; |
7919 | } | |
217aa764 | 7920 | symtab_hdr->contents = outbound_syms; |
ef10c3ac | 7921 | outbound_syms_index = 0; |
252b5132 | 7922 | |
9ad5cbcf | 7923 | outbound_shndx = NULL; |
ef10c3ac | 7924 | outbound_shndx_index = 0; |
6a40cf0c NC |
7925 | |
7926 | if (elf_symtab_shndx_list (abfd)) | |
9ad5cbcf | 7927 | { |
6a40cf0c NC |
7928 | symtab_shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
7929 | if (symtab_shndx_hdr->sh_name != 0) | |
7930 | { | |
7931 | amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx); | |
7932 | outbound_shndx = (bfd_byte *) | |
7933 | bfd_zalloc2 (abfd, 1 + symcount, sizeof (Elf_External_Sym_Shndx)); | |
7934 | if (outbound_shndx == NULL) | |
7935 | goto error_return; | |
5ed6aba4 | 7936 | |
6a40cf0c NC |
7937 | symtab_shndx_hdr->contents = outbound_shndx; |
7938 | symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX; | |
7939 | symtab_shndx_hdr->sh_size = amt; | |
7940 | symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx); | |
7941 | symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx); | |
7942 | } | |
7943 | /* FIXME: What about any other headers in the list ? */ | |
9ad5cbcf AM |
7944 | } |
7945 | ||
589e6347 | 7946 | /* Now generate the data (for "contents"). */ |
079e9a2f AM |
7947 | { |
7948 | /* Fill in zeroth symbol and swap it out. */ | |
7949 | Elf_Internal_Sym sym; | |
7950 | sym.st_name = 0; | |
7951 | sym.st_value = 0; | |
7952 | sym.st_size = 0; | |
7953 | sym.st_info = 0; | |
7954 | sym.st_other = 0; | |
7955 | sym.st_shndx = SHN_UNDEF; | |
35fc36a8 | 7956 | sym.st_target_internal = 0; |
ef10c3ac L |
7957 | symstrtab[0].sym = sym; |
7958 | symstrtab[0].dest_index = outbound_syms_index; | |
7959 | symstrtab[0].destshndx_index = outbound_shndx_index; | |
7960 | outbound_syms_index++; | |
9ad5cbcf | 7961 | if (outbound_shndx != NULL) |
ef10c3ac | 7962 | outbound_shndx_index++; |
079e9a2f | 7963 | } |
252b5132 | 7964 | |
174fd7f9 RS |
7965 | name_local_sections |
7966 | = (bed->elf_backend_name_local_section_symbols | |
7967 | && bed->elf_backend_name_local_section_symbols (abfd)); | |
7968 | ||
079e9a2f | 7969 | syms = bfd_get_outsymbols (abfd); |
ef10c3ac | 7970 | for (idx = 0; idx < symcount;) |
252b5132 | 7971 | { |
252b5132 | 7972 | Elf_Internal_Sym sym; |
079e9a2f AM |
7973 | bfd_vma value = syms[idx]->value; |
7974 | elf_symbol_type *type_ptr; | |
7975 | flagword flags = syms[idx]->flags; | |
7976 | int type; | |
252b5132 | 7977 | |
174fd7f9 RS |
7978 | if (!name_local_sections |
7979 | && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) | |
079e9a2f AM |
7980 | { |
7981 | /* Local section symbols have no name. */ | |
ef10c3ac | 7982 | sym.st_name = (unsigned long) -1; |
079e9a2f AM |
7983 | } |
7984 | else | |
7985 | { | |
ef10c3ac L |
7986 | /* Call _bfd_elf_strtab_offset after _bfd_elf_strtab_finalize |
7987 | to get the final offset for st_name. */ | |
7988 | sym.st_name | |
7989 | = (unsigned long) _bfd_elf_strtab_add (stt, syms[idx]->name, | |
7990 | FALSE); | |
079e9a2f | 7991 | if (sym.st_name == (unsigned long) -1) |
ef10c3ac | 7992 | goto error_return; |
079e9a2f | 7993 | } |
252b5132 | 7994 | |
079e9a2f | 7995 | type_ptr = elf_symbol_from (abfd, syms[idx]); |
252b5132 | 7996 | |
079e9a2f AM |
7997 | if ((flags & BSF_SECTION_SYM) == 0 |
7998 | && bfd_is_com_section (syms[idx]->section)) | |
7999 | { | |
8000 | /* ELF common symbols put the alignment into the `value' field, | |
8001 | and the size into the `size' field. This is backwards from | |
8002 | how BFD handles it, so reverse it here. */ | |
8003 | sym.st_size = value; | |
8004 | if (type_ptr == NULL | |
8005 | || type_ptr->internal_elf_sym.st_value == 0) | |
8006 | sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value)); | |
8007 | else | |
8008 | sym.st_value = type_ptr->internal_elf_sym.st_value; | |
8009 | sym.st_shndx = _bfd_elf_section_from_bfd_section | |
8010 | (abfd, syms[idx]->section); | |
8011 | } | |
8012 | else | |
8013 | { | |
8014 | asection *sec = syms[idx]->section; | |
cb33740c | 8015 | unsigned int shndx; |
252b5132 | 8016 | |
079e9a2f AM |
8017 | if (sec->output_section) |
8018 | { | |
8019 | value += sec->output_offset; | |
8020 | sec = sec->output_section; | |
8021 | } | |
589e6347 | 8022 | |
079e9a2f AM |
8023 | /* Don't add in the section vma for relocatable output. */ |
8024 | if (! relocatable_p) | |
8025 | value += sec->vma; | |
8026 | sym.st_value = value; | |
8027 | sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; | |
8028 | ||
8029 | if (bfd_is_abs_section (sec) | |
8030 | && type_ptr != NULL | |
8031 | && type_ptr->internal_elf_sym.st_shndx != 0) | |
8032 | { | |
8033 | /* This symbol is in a real ELF section which we did | |
8034 | not create as a BFD section. Undo the mapping done | |
8035 | by copy_private_symbol_data. */ | |
8036 | shndx = type_ptr->internal_elf_sym.st_shndx; | |
8037 | switch (shndx) | |
8038 | { | |
8039 | case MAP_ONESYMTAB: | |
8040 | shndx = elf_onesymtab (abfd); | |
8041 | break; | |
8042 | case MAP_DYNSYMTAB: | |
8043 | shndx = elf_dynsymtab (abfd); | |
8044 | break; | |
8045 | case MAP_STRTAB: | |
12bd6957 | 8046 | shndx = elf_strtab_sec (abfd); |
079e9a2f AM |
8047 | break; |
8048 | case MAP_SHSTRTAB: | |
12bd6957 | 8049 | shndx = elf_shstrtab_sec (abfd); |
079e9a2f | 8050 | break; |
9ad5cbcf | 8051 | case MAP_SYM_SHNDX: |
6a40cf0c NC |
8052 | if (elf_symtab_shndx_list (abfd)) |
8053 | shndx = elf_symtab_shndx_list (abfd)->ndx; | |
9ad5cbcf | 8054 | break; |
079e9a2f | 8055 | default: |
15bc576a | 8056 | shndx = SHN_ABS; |
079e9a2f AM |
8057 | break; |
8058 | } | |
8059 | } | |
8060 | else | |
8061 | { | |
8062 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 | 8063 | |
cb33740c | 8064 | if (shndx == SHN_BAD) |
079e9a2f AM |
8065 | { |
8066 | asection *sec2; | |
8067 | ||
8068 | /* Writing this would be a hell of a lot easier if | |
8069 | we had some decent documentation on bfd, and | |
8070 | knew what to expect of the library, and what to | |
8071 | demand of applications. For example, it | |
8072 | appears that `objcopy' might not set the | |
8073 | section of a symbol to be a section that is | |
8074 | actually in the output file. */ | |
8075 | sec2 = bfd_get_section_by_name (abfd, sec->name); | |
5df1bc57 AM |
8076 | if (sec2 != NULL) |
8077 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec2); | |
8078 | if (shndx == SHN_BAD) | |
589e6347 | 8079 | { |
695344c0 | 8080 | /* xgettext:c-format */ |
9793eb77 AM |
8081 | _bfd_error_handler |
8082 | (_("unable to find equivalent output section" | |
8083 | " for symbol '%s' from section '%s'"), | |
8084 | syms[idx]->name ? syms[idx]->name : "<Local sym>", | |
8085 | sec->name); | |
811072d8 | 8086 | bfd_set_error (bfd_error_invalid_operation); |
ef10c3ac | 8087 | goto error_return; |
589e6347 | 8088 | } |
079e9a2f AM |
8089 | } |
8090 | } | |
252b5132 | 8091 | |
079e9a2f AM |
8092 | sym.st_shndx = shndx; |
8093 | } | |
252b5132 | 8094 | |
13ae64f3 JJ |
8095 | if ((flags & BSF_THREAD_LOCAL) != 0) |
8096 | type = STT_TLS; | |
d8045f23 NC |
8097 | else if ((flags & BSF_GNU_INDIRECT_FUNCTION) != 0) |
8098 | type = STT_GNU_IFUNC; | |
13ae64f3 | 8099 | else if ((flags & BSF_FUNCTION) != 0) |
079e9a2f AM |
8100 | type = STT_FUNC; |
8101 | else if ((flags & BSF_OBJECT) != 0) | |
8102 | type = STT_OBJECT; | |
d9352518 DB |
8103 | else if ((flags & BSF_RELC) != 0) |
8104 | type = STT_RELC; | |
8105 | else if ((flags & BSF_SRELC) != 0) | |
8106 | type = STT_SRELC; | |
079e9a2f AM |
8107 | else |
8108 | type = STT_NOTYPE; | |
252b5132 | 8109 | |
13ae64f3 JJ |
8110 | if (syms[idx]->section->flags & SEC_THREAD_LOCAL) |
8111 | type = STT_TLS; | |
8112 | ||
589e6347 | 8113 | /* Processor-specific types. */ |
079e9a2f AM |
8114 | if (type_ptr != NULL |
8115 | && bed->elf_backend_get_symbol_type) | |
8116 | type = ((*bed->elf_backend_get_symbol_type) | |
8117 | (&type_ptr->internal_elf_sym, type)); | |
252b5132 | 8118 | |
079e9a2f AM |
8119 | if (flags & BSF_SECTION_SYM) |
8120 | { | |
8121 | if (flags & BSF_GLOBAL) | |
8122 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); | |
8123 | else | |
8124 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
8125 | } | |
8126 | else if (bfd_is_com_section (syms[idx]->section)) | |
0a40daed | 8127 | { |
b8871f35 L |
8128 | if (type != STT_TLS) |
8129 | { | |
8130 | if ((abfd->flags & BFD_CONVERT_ELF_COMMON)) | |
8131 | type = ((abfd->flags & BFD_USE_ELF_STT_COMMON) | |
8132 | ? STT_COMMON : STT_OBJECT); | |
8133 | else | |
8134 | type = ((flags & BSF_ELF_COMMON) != 0 | |
8135 | ? STT_COMMON : STT_OBJECT); | |
8136 | } | |
8137 | sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); | |
0a40daed | 8138 | } |
079e9a2f AM |
8139 | else if (bfd_is_und_section (syms[idx]->section)) |
8140 | sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK) | |
8141 | ? STB_WEAK | |
8142 | : STB_GLOBAL), | |
8143 | type); | |
8144 | else if (flags & BSF_FILE) | |
8145 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); | |
8146 | else | |
8147 | { | |
8148 | int bind = STB_LOCAL; | |
252b5132 | 8149 | |
079e9a2f AM |
8150 | if (flags & BSF_LOCAL) |
8151 | bind = STB_LOCAL; | |
3e7a7d11 NC |
8152 | else if (flags & BSF_GNU_UNIQUE) |
8153 | bind = STB_GNU_UNIQUE; | |
079e9a2f AM |
8154 | else if (flags & BSF_WEAK) |
8155 | bind = STB_WEAK; | |
8156 | else if (flags & BSF_GLOBAL) | |
8157 | bind = STB_GLOBAL; | |
252b5132 | 8158 | |
079e9a2f AM |
8159 | sym.st_info = ELF_ST_INFO (bind, type); |
8160 | } | |
252b5132 | 8161 | |
079e9a2f | 8162 | if (type_ptr != NULL) |
35fc36a8 RS |
8163 | { |
8164 | sym.st_other = type_ptr->internal_elf_sym.st_other; | |
8165 | sym.st_target_internal | |
8166 | = type_ptr->internal_elf_sym.st_target_internal; | |
8167 | } | |
079e9a2f | 8168 | else |
35fc36a8 RS |
8169 | { |
8170 | sym.st_other = 0; | |
8171 | sym.st_target_internal = 0; | |
8172 | } | |
252b5132 | 8173 | |
ef10c3ac L |
8174 | idx++; |
8175 | symstrtab[idx].sym = sym; | |
8176 | symstrtab[idx].dest_index = outbound_syms_index; | |
8177 | symstrtab[idx].destshndx_index = outbound_shndx_index; | |
8178 | ||
8179 | outbound_syms_index++; | |
9ad5cbcf | 8180 | if (outbound_shndx != NULL) |
ef10c3ac L |
8181 | outbound_shndx_index++; |
8182 | } | |
8183 | ||
8184 | /* Finalize the .strtab section. */ | |
8185 | _bfd_elf_strtab_finalize (stt); | |
8186 | ||
8187 | /* Swap out the .strtab section. */ | |
8188 | for (idx = 0; idx <= symcount; idx++) | |
8189 | { | |
8190 | struct elf_sym_strtab *elfsym = &symstrtab[idx]; | |
8191 | if (elfsym->sym.st_name == (unsigned long) -1) | |
8192 | elfsym->sym.st_name = 0; | |
8193 | else | |
8194 | elfsym->sym.st_name = _bfd_elf_strtab_offset (stt, | |
8195 | elfsym->sym.st_name); | |
8196 | bed->s->swap_symbol_out (abfd, &elfsym->sym, | |
8197 | (outbound_syms | |
8198 | + (elfsym->dest_index | |
8199 | * bed->s->sizeof_sym)), | |
8200 | (outbound_shndx | |
8201 | + (elfsym->destshndx_index | |
8202 | * sizeof (Elf_External_Sym_Shndx)))); | |
079e9a2f | 8203 | } |
ef10c3ac | 8204 | free (symstrtab); |
252b5132 | 8205 | |
079e9a2f | 8206 | *sttp = stt; |
ef10c3ac | 8207 | symstrtab_hdr->sh_size = _bfd_elf_strtab_size (stt); |
079e9a2f | 8208 | symstrtab_hdr->sh_type = SHT_STRTAB; |
84865015 | 8209 | symstrtab_hdr->sh_flags = bed->elf_strtab_flags; |
079e9a2f AM |
8210 | symstrtab_hdr->sh_addr = 0; |
8211 | symstrtab_hdr->sh_entsize = 0; | |
8212 | symstrtab_hdr->sh_link = 0; | |
8213 | symstrtab_hdr->sh_info = 0; | |
8214 | symstrtab_hdr->sh_addralign = 1; | |
252b5132 | 8215 | |
b34976b6 | 8216 | return TRUE; |
252b5132 RH |
8217 | } |
8218 | ||
8219 | /* Return the number of bytes required to hold the symtab vector. | |
8220 | ||
8221 | Note that we base it on the count plus 1, since we will null terminate | |
8222 | the vector allocated based on this size. However, the ELF symbol table | |
8223 | always has a dummy entry as symbol #0, so it ends up even. */ | |
8224 | ||
8225 | long | |
217aa764 | 8226 | _bfd_elf_get_symtab_upper_bound (bfd *abfd) |
252b5132 | 8227 | { |
3a551c7a | 8228 | bfd_size_type symcount; |
252b5132 RH |
8229 | long symtab_size; |
8230 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr; | |
8231 | ||
8232 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8233 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8234 | { | |
8235 | bfd_set_error (bfd_error_file_too_big); | |
8236 | return -1; | |
8237 | } | |
b99d1833 AM |
8238 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8239 | if (symcount > 0) | |
8240 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8241 | |
8242 | return symtab_size; | |
8243 | } | |
8244 | ||
8245 | long | |
217aa764 | 8246 | _bfd_elf_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 | 8247 | { |
3a551c7a | 8248 | bfd_size_type symcount; |
252b5132 RH |
8249 | long symtab_size; |
8250 | Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
8251 | ||
8252 | if (elf_dynsymtab (abfd) == 0) | |
8253 | { | |
8254 | bfd_set_error (bfd_error_invalid_operation); | |
8255 | return -1; | |
8256 | } | |
8257 | ||
8258 | symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; | |
3a551c7a AM |
8259 | if (symcount >= LONG_MAX / sizeof (asymbol *)) |
8260 | { | |
8261 | bfd_set_error (bfd_error_file_too_big); | |
8262 | return -1; | |
8263 | } | |
b99d1833 AM |
8264 | symtab_size = (symcount + 1) * (sizeof (asymbol *)); |
8265 | if (symcount > 0) | |
8266 | symtab_size -= sizeof (asymbol *); | |
252b5132 RH |
8267 | |
8268 | return symtab_size; | |
8269 | } | |
8270 | ||
8271 | long | |
217aa764 AM |
8272 | _bfd_elf_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, |
8273 | sec_ptr asect) | |
252b5132 | 8274 | { |
242a1159 | 8275 | #if SIZEOF_LONG == SIZEOF_INT |
7a6e0d89 AM |
8276 | if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) |
8277 | { | |
8278 | bfd_set_error (bfd_error_file_too_big); | |
8279 | return -1; | |
8280 | } | |
242a1159 | 8281 | #endif |
252b5132 RH |
8282 | return (asect->reloc_count + 1) * sizeof (arelent *); |
8283 | } | |
8284 | ||
8285 | /* Canonicalize the relocs. */ | |
8286 | ||
8287 | long | |
217aa764 AM |
8288 | _bfd_elf_canonicalize_reloc (bfd *abfd, |
8289 | sec_ptr section, | |
8290 | arelent **relptr, | |
8291 | asymbol **symbols) | |
252b5132 RH |
8292 | { |
8293 | arelent *tblptr; | |
8294 | unsigned int i; | |
9c5bfbb7 | 8295 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
252b5132 | 8296 | |
b34976b6 | 8297 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
8298 | return -1; |
8299 | ||
8300 | tblptr = section->relocation; | |
8301 | for (i = 0; i < section->reloc_count; i++) | |
8302 | *relptr++ = tblptr++; | |
8303 | ||
8304 | *relptr = NULL; | |
8305 | ||
8306 | return section->reloc_count; | |
8307 | } | |
8308 | ||
8309 | long | |
6cee3f79 | 8310 | _bfd_elf_canonicalize_symtab (bfd *abfd, asymbol **allocation) |
252b5132 | 8311 | { |
9c5bfbb7 | 8312 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8313 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, FALSE); |
252b5132 RH |
8314 | |
8315 | if (symcount >= 0) | |
8316 | bfd_get_symcount (abfd) = symcount; | |
8317 | return symcount; | |
8318 | } | |
8319 | ||
8320 | long | |
217aa764 AM |
8321 | _bfd_elf_canonicalize_dynamic_symtab (bfd *abfd, |
8322 | asymbol **allocation) | |
252b5132 | 8323 | { |
9c5bfbb7 | 8324 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
217aa764 | 8325 | long symcount = bed->s->slurp_symbol_table (abfd, allocation, TRUE); |
1f70368c DJ |
8326 | |
8327 | if (symcount >= 0) | |
8328 | bfd_get_dynamic_symcount (abfd) = symcount; | |
8329 | return symcount; | |
252b5132 RH |
8330 | } |
8331 | ||
8615f3f2 AM |
8332 | /* Return the size required for the dynamic reloc entries. Any loadable |
8333 | section that was actually installed in the BFD, and has type SHT_REL | |
8334 | or SHT_RELA, and uses the dynamic symbol table, is considered to be a | |
8335 | dynamic reloc section. */ | |
252b5132 RH |
8336 | |
8337 | long | |
217aa764 | 8338 | _bfd_elf_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 | 8339 | { |
3a551c7a | 8340 | bfd_size_type count; |
252b5132 RH |
8341 | asection *s; |
8342 | ||
8343 | if (elf_dynsymtab (abfd) == 0) | |
8344 | { | |
8345 | bfd_set_error (bfd_error_invalid_operation); | |
8346 | return -1; | |
8347 | } | |
8348 | ||
3a551c7a | 8349 | count = 1; |
252b5132 | 8350 | for (s = abfd->sections; s != NULL; s = s->next) |
266b05cf | 8351 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8352 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8353 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
3a551c7a AM |
8354 | { |
8355 | count += s->size / elf_section_data (s)->this_hdr.sh_entsize; | |
8356 | if (count > LONG_MAX / sizeof (arelent *)) | |
8357 | { | |
8358 | bfd_set_error (bfd_error_file_too_big); | |
8359 | return -1; | |
8360 | } | |
8361 | } | |
8362 | return count * sizeof (arelent *); | |
252b5132 RH |
8363 | } |
8364 | ||
8615f3f2 AM |
8365 | /* Canonicalize the dynamic relocation entries. Note that we return the |
8366 | dynamic relocations as a single block, although they are actually | |
8367 | associated with particular sections; the interface, which was | |
8368 | designed for SunOS style shared libraries, expects that there is only | |
8369 | one set of dynamic relocs. Any loadable section that was actually | |
8370 | installed in the BFD, and has type SHT_REL or SHT_RELA, and uses the | |
8371 | dynamic symbol table, is considered to be a dynamic reloc section. */ | |
252b5132 RH |
8372 | |
8373 | long | |
217aa764 AM |
8374 | _bfd_elf_canonicalize_dynamic_reloc (bfd *abfd, |
8375 | arelent **storage, | |
8376 | asymbol **syms) | |
252b5132 | 8377 | { |
217aa764 | 8378 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
252b5132 RH |
8379 | asection *s; |
8380 | long ret; | |
8381 | ||
8382 | if (elf_dynsymtab (abfd) == 0) | |
8383 | { | |
8384 | bfd_set_error (bfd_error_invalid_operation); | |
8385 | return -1; | |
8386 | } | |
8387 | ||
8388 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
8389 | ret = 0; | |
8390 | for (s = abfd->sections; s != NULL; s = s->next) | |
8391 | { | |
266b05cf | 8392 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) |
252b5132 RH |
8393 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL |
8394 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
8395 | { | |
8396 | arelent *p; | |
8397 | long count, i; | |
8398 | ||
b34976b6 | 8399 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) |
252b5132 | 8400 | return -1; |
eea6121a | 8401 | count = s->size / elf_section_data (s)->this_hdr.sh_entsize; |
252b5132 RH |
8402 | p = s->relocation; |
8403 | for (i = 0; i < count; i++) | |
8404 | *storage++ = p++; | |
8405 | ret += count; | |
8406 | } | |
8407 | } | |
8408 | ||
8409 | *storage = NULL; | |
8410 | ||
8411 | return ret; | |
8412 | } | |
8413 | \f | |
8414 | /* Read in the version information. */ | |
8415 | ||
b34976b6 | 8416 | bfd_boolean |
fc0e6df6 | 8417 | _bfd_elf_slurp_version_tables (bfd *abfd, bfd_boolean default_imported_symver) |
252b5132 RH |
8418 | { |
8419 | bfd_byte *contents = NULL; | |
fc0e6df6 PB |
8420 | unsigned int freeidx = 0; |
8421 | ||
8422 | if (elf_dynverref (abfd) != 0) | |
8423 | { | |
8424 | Elf_Internal_Shdr *hdr; | |
8425 | Elf_External_Verneed *everneed; | |
8426 | Elf_Internal_Verneed *iverneed; | |
8427 | unsigned int i; | |
d0fb9a8d | 8428 | bfd_byte *contents_end; |
fc0e6df6 PB |
8429 | |
8430 | hdr = &elf_tdata (abfd)->dynverref_hdr; | |
8431 | ||
bd61e135 AM |
8432 | if (hdr->sh_info == 0 |
8433 | || hdr->sh_info > hdr->sh_size / sizeof (Elf_External_Verneed)) | |
d0fb9a8d | 8434 | { |
601a03ba | 8435 | error_return_bad_verref: |
4eca0228 | 8436 | _bfd_error_handler |
871b3ab2 | 8437 | (_("%pB: .gnu.version_r invalid entry"), abfd); |
601a03ba | 8438 | bfd_set_error (bfd_error_bad_value); |
d0fb9a8d JJ |
8439 | error_return_verref: |
8440 | elf_tdata (abfd)->verref = NULL; | |
8441 | elf_tdata (abfd)->cverrefs = 0; | |
8442 | goto error_return; | |
8443 | } | |
601a03ba AM |
8444 | |
8445 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); | |
8446 | if (contents == NULL) | |
8447 | goto error_return_verref; | |
8448 | ||
fc0e6df6 PB |
8449 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
8450 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) | |
d0fb9a8d | 8451 | goto error_return_verref; |
fc0e6df6 | 8452 | |
601a03ba | 8453 | elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) |
bd61e135 | 8454 | bfd_alloc2 (abfd, hdr->sh_info, sizeof (Elf_Internal_Verneed)); |
601a03ba AM |
8455 | |
8456 | if (elf_tdata (abfd)->verref == NULL) | |
d0fb9a8d JJ |
8457 | goto error_return_verref; |
8458 | ||
8459 | BFD_ASSERT (sizeof (Elf_External_Verneed) | |
8460 | == sizeof (Elf_External_Vernaux)); | |
8461 | contents_end = contents + hdr->sh_size - sizeof (Elf_External_Verneed); | |
fc0e6df6 PB |
8462 | everneed = (Elf_External_Verneed *) contents; |
8463 | iverneed = elf_tdata (abfd)->verref; | |
8464 | for (i = 0; i < hdr->sh_info; i++, iverneed++) | |
8465 | { | |
8466 | Elf_External_Vernaux *evernaux; | |
8467 | Elf_Internal_Vernaux *ivernaux; | |
8468 | unsigned int j; | |
8469 | ||
8470 | _bfd_elf_swap_verneed_in (abfd, everneed, iverneed); | |
8471 | ||
8472 | iverneed->vn_bfd = abfd; | |
8473 | ||
8474 | iverneed->vn_filename = | |
8475 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8476 | iverneed->vn_file); | |
8477 | if (iverneed->vn_filename == NULL) | |
601a03ba | 8478 | goto error_return_bad_verref; |
fc0e6df6 | 8479 | |
d0fb9a8d JJ |
8480 | if (iverneed->vn_cnt == 0) |
8481 | iverneed->vn_auxptr = NULL; | |
8482 | else | |
8483 | { | |
a50b1753 | 8484 | iverneed->vn_auxptr = (struct elf_internal_vernaux *) |
07d6d2b8 AM |
8485 | bfd_alloc2 (abfd, iverneed->vn_cnt, |
8486 | sizeof (Elf_Internal_Vernaux)); | |
d0fb9a8d JJ |
8487 | if (iverneed->vn_auxptr == NULL) |
8488 | goto error_return_verref; | |
8489 | } | |
8490 | ||
8491 | if (iverneed->vn_aux | |
8492 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8493 | goto error_return_bad_verref; |
fc0e6df6 PB |
8494 | |
8495 | evernaux = ((Elf_External_Vernaux *) | |
8496 | ((bfd_byte *) everneed + iverneed->vn_aux)); | |
8497 | ivernaux = iverneed->vn_auxptr; | |
8498 | for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++) | |
8499 | { | |
8500 | _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux); | |
8501 | ||
8502 | ivernaux->vna_nodename = | |
8503 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8504 | ivernaux->vna_name); | |
8505 | if (ivernaux->vna_nodename == NULL) | |
601a03ba | 8506 | goto error_return_bad_verref; |
fc0e6df6 | 8507 | |
25ff461f AM |
8508 | if (ivernaux->vna_other > freeidx) |
8509 | freeidx = ivernaux->vna_other; | |
8510 | ||
8511 | ivernaux->vna_nextptr = NULL; | |
8512 | if (ivernaux->vna_next == 0) | |
8513 | { | |
8514 | iverneed->vn_cnt = j + 1; | |
8515 | break; | |
8516 | } | |
fc0e6df6 PB |
8517 | if (j + 1 < iverneed->vn_cnt) |
8518 | ivernaux->vna_nextptr = ivernaux + 1; | |
fc0e6df6 | 8519 | |
d0fb9a8d JJ |
8520 | if (ivernaux->vna_next |
8521 | > (size_t) (contents_end - (bfd_byte *) evernaux)) | |
601a03ba | 8522 | goto error_return_bad_verref; |
d0fb9a8d | 8523 | |
fc0e6df6 PB |
8524 | evernaux = ((Elf_External_Vernaux *) |
8525 | ((bfd_byte *) evernaux + ivernaux->vna_next)); | |
fc0e6df6 PB |
8526 | } |
8527 | ||
25ff461f AM |
8528 | iverneed->vn_nextref = NULL; |
8529 | if (iverneed->vn_next == 0) | |
8530 | break; | |
fc0e6df6 PB |
8531 | if (i + 1 < hdr->sh_info) |
8532 | iverneed->vn_nextref = iverneed + 1; | |
fc0e6df6 | 8533 | |
d0fb9a8d JJ |
8534 | if (iverneed->vn_next |
8535 | > (size_t) (contents_end - (bfd_byte *) everneed)) | |
601a03ba | 8536 | goto error_return_bad_verref; |
d0fb9a8d | 8537 | |
fc0e6df6 PB |
8538 | everneed = ((Elf_External_Verneed *) |
8539 | ((bfd_byte *) everneed + iverneed->vn_next)); | |
8540 | } | |
25ff461f | 8541 | elf_tdata (abfd)->cverrefs = i; |
fc0e6df6 PB |
8542 | |
8543 | free (contents); | |
8544 | contents = NULL; | |
8545 | } | |
252b5132 RH |
8546 | |
8547 | if (elf_dynverdef (abfd) != 0) | |
8548 | { | |
8549 | Elf_Internal_Shdr *hdr; | |
8550 | Elf_External_Verdef *everdef; | |
8551 | Elf_Internal_Verdef *iverdef; | |
f631889e UD |
8552 | Elf_Internal_Verdef *iverdefarr; |
8553 | Elf_Internal_Verdef iverdefmem; | |
252b5132 | 8554 | unsigned int i; |
062e2358 | 8555 | unsigned int maxidx; |
d0fb9a8d | 8556 | bfd_byte *contents_end_def, *contents_end_aux; |
252b5132 RH |
8557 | |
8558 | hdr = &elf_tdata (abfd)->dynverdef_hdr; | |
8559 | ||
601a03ba AM |
8560 | if (hdr->sh_info == 0 || hdr->sh_size < sizeof (Elf_External_Verdef)) |
8561 | { | |
8562 | error_return_bad_verdef: | |
4eca0228 | 8563 | _bfd_error_handler |
871b3ab2 | 8564 | (_("%pB: .gnu.version_d invalid entry"), abfd); |
601a03ba AM |
8565 | bfd_set_error (bfd_error_bad_value); |
8566 | error_return_verdef: | |
8567 | elf_tdata (abfd)->verdef = NULL; | |
8568 | elf_tdata (abfd)->cverdefs = 0; | |
8569 | goto error_return; | |
8570 | } | |
8571 | ||
a50b1753 | 8572 | contents = (bfd_byte *) bfd_malloc (hdr->sh_size); |
252b5132 | 8573 | if (contents == NULL) |
601a03ba | 8574 | goto error_return_verdef; |
252b5132 | 8575 | if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0 |
217aa764 | 8576 | || bfd_bread (contents, hdr->sh_size, abfd) != hdr->sh_size) |
601a03ba | 8577 | goto error_return_verdef; |
d0fb9a8d JJ |
8578 | |
8579 | BFD_ASSERT (sizeof (Elf_External_Verdef) | |
8580 | >= sizeof (Elf_External_Verdaux)); | |
8581 | contents_end_def = contents + hdr->sh_size | |
8582 | - sizeof (Elf_External_Verdef); | |
8583 | contents_end_aux = contents + hdr->sh_size | |
8584 | - sizeof (Elf_External_Verdaux); | |
8585 | ||
f631889e UD |
8586 | /* We know the number of entries in the section but not the maximum |
8587 | index. Therefore we have to run through all entries and find | |
8588 | the maximum. */ | |
252b5132 | 8589 | everdef = (Elf_External_Verdef *) contents; |
f631889e UD |
8590 | maxidx = 0; |
8591 | for (i = 0; i < hdr->sh_info; ++i) | |
8592 | { | |
8593 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); | |
8594 | ||
601a03ba AM |
8595 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) == 0) |
8596 | goto error_return_bad_verdef; | |
062e2358 AM |
8597 | if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx) |
8598 | maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION); | |
f631889e | 8599 | |
25ff461f AM |
8600 | if (iverdefmem.vd_next == 0) |
8601 | break; | |
8602 | ||
d0fb9a8d JJ |
8603 | if (iverdefmem.vd_next |
8604 | > (size_t) (contents_end_def - (bfd_byte *) everdef)) | |
601a03ba | 8605 | goto error_return_bad_verdef; |
d0fb9a8d | 8606 | |
f631889e UD |
8607 | everdef = ((Elf_External_Verdef *) |
8608 | ((bfd_byte *) everdef + iverdefmem.vd_next)); | |
8609 | } | |
8610 | ||
fc0e6df6 PB |
8611 | if (default_imported_symver) |
8612 | { | |
8613 | if (freeidx > maxidx) | |
8614 | maxidx = ++freeidx; | |
8615 | else | |
8616 | freeidx = ++maxidx; | |
8617 | } | |
201159ec | 8618 | |
601a03ba AM |
8619 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
8620 | bfd_zalloc2 (abfd, maxidx, sizeof (Elf_Internal_Verdef)); | |
f631889e | 8621 | if (elf_tdata (abfd)->verdef == NULL) |
601a03ba | 8622 | goto error_return_verdef; |
f631889e UD |
8623 | |
8624 | elf_tdata (abfd)->cverdefs = maxidx; | |
8625 | ||
8626 | everdef = (Elf_External_Verdef *) contents; | |
8627 | iverdefarr = elf_tdata (abfd)->verdef; | |
8628 | for (i = 0; i < hdr->sh_info; i++) | |
252b5132 RH |
8629 | { |
8630 | Elf_External_Verdaux *everdaux; | |
8631 | Elf_Internal_Verdaux *iverdaux; | |
8632 | unsigned int j; | |
8633 | ||
f631889e UD |
8634 | _bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem); |
8635 | ||
d0fb9a8d | 8636 | if ((iverdefmem.vd_ndx & VERSYM_VERSION) == 0) |
601a03ba | 8637 | goto error_return_bad_verdef; |
d0fb9a8d | 8638 | |
f631889e | 8639 | iverdef = &iverdefarr[(iverdefmem.vd_ndx & VERSYM_VERSION) - 1]; |
595bce75 | 8640 | memcpy (iverdef, &iverdefmem, offsetof (Elf_Internal_Verdef, vd_bfd)); |
252b5132 RH |
8641 | |
8642 | iverdef->vd_bfd = abfd; | |
8643 | ||
d0fb9a8d JJ |
8644 | if (iverdef->vd_cnt == 0) |
8645 | iverdef->vd_auxptr = NULL; | |
8646 | else | |
8647 | { | |
a50b1753 | 8648 | iverdef->vd_auxptr = (struct elf_internal_verdaux *) |
07d6d2b8 AM |
8649 | bfd_alloc2 (abfd, iverdef->vd_cnt, |
8650 | sizeof (Elf_Internal_Verdaux)); | |
d0fb9a8d JJ |
8651 | if (iverdef->vd_auxptr == NULL) |
8652 | goto error_return_verdef; | |
8653 | } | |
8654 | ||
8655 | if (iverdef->vd_aux | |
8656 | > (size_t) (contents_end_aux - (bfd_byte *) everdef)) | |
601a03ba | 8657 | goto error_return_bad_verdef; |
252b5132 RH |
8658 | |
8659 | everdaux = ((Elf_External_Verdaux *) | |
8660 | ((bfd_byte *) everdef + iverdef->vd_aux)); | |
8661 | iverdaux = iverdef->vd_auxptr; | |
8662 | for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++) | |
8663 | { | |
8664 | _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux); | |
8665 | ||
8666 | iverdaux->vda_nodename = | |
8667 | bfd_elf_string_from_elf_section (abfd, hdr->sh_link, | |
8668 | iverdaux->vda_name); | |
8669 | if (iverdaux->vda_nodename == NULL) | |
601a03ba | 8670 | goto error_return_bad_verdef; |
252b5132 | 8671 | |
25ff461f AM |
8672 | iverdaux->vda_nextptr = NULL; |
8673 | if (iverdaux->vda_next == 0) | |
8674 | { | |
8675 | iverdef->vd_cnt = j + 1; | |
8676 | break; | |
8677 | } | |
252b5132 RH |
8678 | if (j + 1 < iverdef->vd_cnt) |
8679 | iverdaux->vda_nextptr = iverdaux + 1; | |
252b5132 | 8680 | |
d0fb9a8d JJ |
8681 | if (iverdaux->vda_next |
8682 | > (size_t) (contents_end_aux - (bfd_byte *) everdaux)) | |
601a03ba | 8683 | goto error_return_bad_verdef; |
d0fb9a8d | 8684 | |
252b5132 RH |
8685 | everdaux = ((Elf_External_Verdaux *) |
8686 | ((bfd_byte *) everdaux + iverdaux->vda_next)); | |
8687 | } | |
8688 | ||
595bce75 | 8689 | iverdef->vd_nodename = NULL; |
d0fb9a8d JJ |
8690 | if (iverdef->vd_cnt) |
8691 | iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename; | |
252b5132 | 8692 | |
25ff461f AM |
8693 | iverdef->vd_nextdef = NULL; |
8694 | if (iverdef->vd_next == 0) | |
8695 | break; | |
d0fb9a8d | 8696 | if ((size_t) (iverdef - iverdefarr) + 1 < maxidx) |
252b5132 | 8697 | iverdef->vd_nextdef = iverdef + 1; |
252b5132 RH |
8698 | |
8699 | everdef = ((Elf_External_Verdef *) | |
8700 | ((bfd_byte *) everdef + iverdef->vd_next)); | |
8701 | } | |
8702 | ||
8703 | free (contents); | |
8704 | contents = NULL; | |
8705 | } | |
fc0e6df6 | 8706 | else if (default_imported_symver) |
252b5132 | 8707 | { |
fc0e6df6 PB |
8708 | if (freeidx < 3) |
8709 | freeidx = 3; | |
8710 | else | |
8711 | freeidx++; | |
252b5132 | 8712 | |
a50b1753 | 8713 | elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) |
07d6d2b8 | 8714 | bfd_zalloc2 (abfd, freeidx, sizeof (Elf_Internal_Verdef)); |
fc0e6df6 | 8715 | if (elf_tdata (abfd)->verdef == NULL) |
252b5132 RH |
8716 | goto error_return; |
8717 | ||
fc0e6df6 PB |
8718 | elf_tdata (abfd)->cverdefs = freeidx; |
8719 | } | |
252b5132 | 8720 | |
fc0e6df6 PB |
8721 | /* Create a default version based on the soname. */ |
8722 | if (default_imported_symver) | |
8723 | { | |
8724 | Elf_Internal_Verdef *iverdef; | |
8725 | Elf_Internal_Verdaux *iverdaux; | |
252b5132 | 8726 | |
5bb3703f | 8727 | iverdef = &elf_tdata (abfd)->verdef[freeidx - 1]; |
252b5132 | 8728 | |
fc0e6df6 PB |
8729 | iverdef->vd_version = VER_DEF_CURRENT; |
8730 | iverdef->vd_flags = 0; | |
8731 | iverdef->vd_ndx = freeidx; | |
8732 | iverdef->vd_cnt = 1; | |
252b5132 | 8733 | |
fc0e6df6 | 8734 | iverdef->vd_bfd = abfd; |
252b5132 | 8735 | |
fc0e6df6 PB |
8736 | iverdef->vd_nodename = bfd_elf_get_dt_soname (abfd); |
8737 | if (iverdef->vd_nodename == NULL) | |
d0fb9a8d | 8738 | goto error_return_verdef; |
fc0e6df6 | 8739 | iverdef->vd_nextdef = NULL; |
601a03ba AM |
8740 | iverdef->vd_auxptr = ((struct elf_internal_verdaux *) |
8741 | bfd_zalloc (abfd, sizeof (Elf_Internal_Verdaux))); | |
d0fb9a8d JJ |
8742 | if (iverdef->vd_auxptr == NULL) |
8743 | goto error_return_verdef; | |
252b5132 | 8744 | |
fc0e6df6 PB |
8745 | iverdaux = iverdef->vd_auxptr; |
8746 | iverdaux->vda_nodename = iverdef->vd_nodename; | |
252b5132 RH |
8747 | } |
8748 | ||
b34976b6 | 8749 | return TRUE; |
252b5132 RH |
8750 | |
8751 | error_return: | |
5ed6aba4 | 8752 | if (contents != NULL) |
252b5132 | 8753 | free (contents); |
b34976b6 | 8754 | return FALSE; |
252b5132 RH |
8755 | } |
8756 | \f | |
8757 | asymbol * | |
217aa764 | 8758 | _bfd_elf_make_empty_symbol (bfd *abfd) |
252b5132 RH |
8759 | { |
8760 | elf_symbol_type *newsym; | |
8761 | ||
7a6e0d89 | 8762 | newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (*newsym)); |
252b5132 RH |
8763 | if (!newsym) |
8764 | return NULL; | |
201159ec NC |
8765 | newsym->symbol.the_bfd = abfd; |
8766 | return &newsym->symbol; | |
252b5132 RH |
8767 | } |
8768 | ||
8769 | void | |
217aa764 AM |
8770 | _bfd_elf_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED, |
8771 | asymbol *symbol, | |
8772 | symbol_info *ret) | |
252b5132 RH |
8773 | { |
8774 | bfd_symbol_info (symbol, ret); | |
8775 | } | |
8776 | ||
8777 | /* Return whether a symbol name implies a local symbol. Most targets | |
8778 | use this function for the is_local_label_name entry point, but some | |
8779 | override it. */ | |
8780 | ||
b34976b6 | 8781 | bfd_boolean |
217aa764 AM |
8782 | _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
8783 | const char *name) | |
252b5132 RH |
8784 | { |
8785 | /* Normal local symbols start with ``.L''. */ | |
8786 | if (name[0] == '.' && name[1] == 'L') | |
b34976b6 | 8787 | return TRUE; |
252b5132 RH |
8788 | |
8789 | /* At least some SVR4 compilers (e.g., UnixWare 2.1 cc) generate | |
8790 | DWARF debugging symbols starting with ``..''. */ | |
8791 | if (name[0] == '.' && name[1] == '.') | |
b34976b6 | 8792 | return TRUE; |
252b5132 RH |
8793 | |
8794 | /* gcc will sometimes generate symbols beginning with ``_.L_'' when | |
8795 | emitting DWARF debugging output. I suspect this is actually a | |
8796 | small bug in gcc (it calls ASM_OUTPUT_LABEL when it should call | |
8797 | ASM_GENERATE_INTERNAL_LABEL, and this causes the leading | |
8798 | underscore to be emitted on some ELF targets). For ease of use, | |
8799 | we treat such symbols as local. */ | |
8800 | if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_') | |
b34976b6 | 8801 | return TRUE; |
252b5132 | 8802 | |
b1fa9dd6 NC |
8803 | /* Treat assembler generated fake symbols, dollar local labels and |
8804 | forward-backward labels (aka local labels) as locals. | |
8805 | These labels have the form: | |
8806 | ||
07d6d2b8 | 8807 | L0^A.* (fake symbols) |
b1fa9dd6 NC |
8808 | |
8809 | [.]?L[0123456789]+{^A|^B}[0123456789]* (local labels) | |
8810 | ||
8811 | Versions which start with .L will have already been matched above, | |
8812 | so we only need to match the rest. */ | |
8813 | if (name[0] == 'L' && ISDIGIT (name[1])) | |
8814 | { | |
8815 | bfd_boolean ret = FALSE; | |
8816 | const char * p; | |
8817 | char c; | |
8818 | ||
8819 | for (p = name + 2; (c = *p); p++) | |
8820 | { | |
8821 | if (c == 1 || c == 2) | |
8822 | { | |
8823 | if (c == 1 && p == name + 2) | |
8824 | /* A fake symbol. */ | |
8825 | return TRUE; | |
8826 | ||
8827 | /* FIXME: We are being paranoid here and treating symbols like | |
8828 | L0^Bfoo as if there were non-local, on the grounds that the | |
8829 | assembler will never generate them. But can any symbol | |
8830 | containing an ASCII value in the range 1-31 ever be anything | |
8831 | other than some kind of local ? */ | |
8832 | ret = TRUE; | |
8833 | } | |
8834 | ||
8835 | if (! ISDIGIT (c)) | |
8836 | { | |
8837 | ret = FALSE; | |
8838 | break; | |
8839 | } | |
8840 | } | |
8841 | return ret; | |
8842 | } | |
ffa54770 | 8843 | |
b34976b6 | 8844 | return FALSE; |
252b5132 RH |
8845 | } |
8846 | ||
8847 | alent * | |
217aa764 AM |
8848 | _bfd_elf_get_lineno (bfd *abfd ATTRIBUTE_UNUSED, |
8849 | asymbol *symbol ATTRIBUTE_UNUSED) | |
252b5132 RH |
8850 | { |
8851 | abort (); | |
8852 | return NULL; | |
8853 | } | |
8854 | ||
b34976b6 | 8855 | bfd_boolean |
217aa764 AM |
8856 | _bfd_elf_set_arch_mach (bfd *abfd, |
8857 | enum bfd_architecture arch, | |
8858 | unsigned long machine) | |
252b5132 RH |
8859 | { |
8860 | /* If this isn't the right architecture for this backend, and this | |
8861 | isn't the generic backend, fail. */ | |
8862 | if (arch != get_elf_backend_data (abfd)->arch | |
8863 | && arch != bfd_arch_unknown | |
8864 | && get_elf_backend_data (abfd)->arch != bfd_arch_unknown) | |
b34976b6 | 8865 | return FALSE; |
252b5132 RH |
8866 | |
8867 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
8868 | } | |
8869 | ||
d1fad7c6 NC |
8870 | /* Find the nearest line to a particular section and offset, |
8871 | for error reporting. */ | |
8872 | ||
b34976b6 | 8873 | bfd_boolean |
217aa764 | 8874 | _bfd_elf_find_nearest_line (bfd *abfd, |
217aa764 | 8875 | asymbol **symbols, |
fb167eb2 | 8876 | asection *section, |
217aa764 AM |
8877 | bfd_vma offset, |
8878 | const char **filename_ptr, | |
8879 | const char **functionname_ptr, | |
fb167eb2 AM |
8880 | unsigned int *line_ptr, |
8881 | unsigned int *discriminator_ptr) | |
d1fad7c6 | 8882 | { |
b34976b6 | 8883 | bfd_boolean found; |
d1fad7c6 | 8884 | |
fb167eb2 | 8885 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
4e8a9624 | 8886 | filename_ptr, functionname_ptr, |
fb167eb2 AM |
8887 | line_ptr, discriminator_ptr, |
8888 | dwarf_debug_sections, 0, | |
e00e8198 AM |
8889 | &elf_tdata (abfd)->dwarf2_find_line_info) |
8890 | || _bfd_dwarf1_find_nearest_line (abfd, symbols, section, offset, | |
8891 | filename_ptr, functionname_ptr, | |
8892 | line_ptr)) | |
d1fad7c6 NC |
8893 | { |
8894 | if (!*functionname_ptr) | |
e00e8198 AM |
8895 | _bfd_elf_find_function (abfd, symbols, section, offset, |
8896 | *filename_ptr ? NULL : filename_ptr, | |
8897 | functionname_ptr); | |
b34976b6 | 8898 | return TRUE; |
d1fad7c6 NC |
8899 | } |
8900 | ||
8901 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4e8a9624 AM |
8902 | &found, filename_ptr, |
8903 | functionname_ptr, line_ptr, | |
8904 | &elf_tdata (abfd)->line_info)) | |
b34976b6 | 8905 | return FALSE; |
dc43ada5 | 8906 | if (found && (*functionname_ptr || *line_ptr)) |
b34976b6 | 8907 | return TRUE; |
d1fad7c6 NC |
8908 | |
8909 | if (symbols == NULL) | |
b34976b6 | 8910 | return FALSE; |
d1fad7c6 | 8911 | |
e00e8198 AM |
8912 | if (! _bfd_elf_find_function (abfd, symbols, section, offset, |
8913 | filename_ptr, functionname_ptr)) | |
b34976b6 | 8914 | return FALSE; |
d1fad7c6 | 8915 | |
252b5132 | 8916 | *line_ptr = 0; |
b34976b6 | 8917 | return TRUE; |
252b5132 RH |
8918 | } |
8919 | ||
5420f73d L |
8920 | /* Find the line for a symbol. */ |
8921 | ||
8922 | bfd_boolean | |
8923 | _bfd_elf_find_line (bfd *abfd, asymbol **symbols, asymbol *symbol, | |
8924 | const char **filename_ptr, unsigned int *line_ptr) | |
9b8d1a36 | 8925 | { |
fb167eb2 AM |
8926 | return _bfd_dwarf2_find_nearest_line (abfd, symbols, symbol, NULL, 0, |
8927 | filename_ptr, NULL, line_ptr, NULL, | |
8928 | dwarf_debug_sections, 0, | |
8929 | &elf_tdata (abfd)->dwarf2_find_line_info); | |
5420f73d L |
8930 | } |
8931 | ||
4ab527b0 FF |
8932 | /* After a call to bfd_find_nearest_line, successive calls to |
8933 | bfd_find_inliner_info can be used to get source information about | |
8934 | each level of function inlining that terminated at the address | |
8935 | passed to bfd_find_nearest_line. Currently this is only supported | |
8936 | for DWARF2 with appropriate DWARF3 extensions. */ | |
8937 | ||
8938 | bfd_boolean | |
8939 | _bfd_elf_find_inliner_info (bfd *abfd, | |
8940 | const char **filename_ptr, | |
8941 | const char **functionname_ptr, | |
8942 | unsigned int *line_ptr) | |
8943 | { | |
8944 | bfd_boolean found; | |
8945 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
8946 | functionname_ptr, line_ptr, | |
8947 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
8948 | return found; | |
8949 | } | |
8950 | ||
252b5132 | 8951 | int |
a6b96beb | 8952 | _bfd_elf_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 8953 | { |
8ded5a0f AM |
8954 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
8955 | int ret = bed->s->sizeof_ehdr; | |
252b5132 | 8956 | |
0e1862bb | 8957 | if (!bfd_link_relocatable (info)) |
8ded5a0f | 8958 | { |
12bd6957 | 8959 | bfd_size_type phdr_size = elf_program_header_size (abfd); |
8ded5a0f | 8960 | |
62d7a5f6 AM |
8961 | if (phdr_size == (bfd_size_type) -1) |
8962 | { | |
8963 | struct elf_segment_map *m; | |
8964 | ||
8965 | phdr_size = 0; | |
12bd6957 | 8966 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
62d7a5f6 | 8967 | phdr_size += bed->s->sizeof_phdr; |
8ded5a0f | 8968 | |
62d7a5f6 AM |
8969 | if (phdr_size == 0) |
8970 | phdr_size = get_program_header_size (abfd, info); | |
8971 | } | |
8ded5a0f | 8972 | |
12bd6957 | 8973 | elf_program_header_size (abfd) = phdr_size; |
8ded5a0f AM |
8974 | ret += phdr_size; |
8975 | } | |
8976 | ||
252b5132 RH |
8977 | return ret; |
8978 | } | |
8979 | ||
b34976b6 | 8980 | bfd_boolean |
217aa764 AM |
8981 | _bfd_elf_set_section_contents (bfd *abfd, |
8982 | sec_ptr section, | |
0f867abe | 8983 | const void *location, |
217aa764 AM |
8984 | file_ptr offset, |
8985 | bfd_size_type count) | |
252b5132 RH |
8986 | { |
8987 | Elf_Internal_Shdr *hdr; | |
1b6aeedb | 8988 | file_ptr pos; |
252b5132 RH |
8989 | |
8990 | if (! abfd->output_has_begun | |
217aa764 | 8991 | && ! _bfd_elf_compute_section_file_positions (abfd, NULL)) |
b34976b6 | 8992 | return FALSE; |
252b5132 | 8993 | |
0ce398f1 L |
8994 | if (!count) |
8995 | return TRUE; | |
8996 | ||
252b5132 | 8997 | hdr = &elf_section_data (section)->this_hdr; |
0ce398f1 L |
8998 | if (hdr->sh_offset == (file_ptr) -1) |
8999 | { | |
9000 | /* We must compress this section. Write output to the buffer. */ | |
9001 | unsigned char *contents = hdr->contents; | |
9002 | if ((offset + count) > hdr->sh_size | |
9003 | || (section->flags & SEC_ELF_COMPRESS) == 0 | |
9004 | || contents == NULL) | |
9005 | abort (); | |
9006 | memcpy (contents + offset, location, count); | |
9007 | return TRUE; | |
9008 | } | |
dc810e39 AM |
9009 | pos = hdr->sh_offset + offset; |
9010 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
9011 | || bfd_bwrite (location, count, abfd) != count) | |
b34976b6 | 9012 | return FALSE; |
252b5132 | 9013 | |
b34976b6 | 9014 | return TRUE; |
252b5132 RH |
9015 | } |
9016 | ||
f3185997 | 9017 | bfd_boolean |
217aa764 AM |
9018 | _bfd_elf_no_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
9019 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
9020 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
252b5132 RH |
9021 | { |
9022 | abort (); | |
f3185997 | 9023 | return FALSE; |
252b5132 RH |
9024 | } |
9025 | ||
252b5132 RH |
9026 | /* Try to convert a non-ELF reloc into an ELF one. */ |
9027 | ||
b34976b6 | 9028 | bfd_boolean |
217aa764 | 9029 | _bfd_elf_validate_reloc (bfd *abfd, arelent *areloc) |
252b5132 | 9030 | { |
c044fabd | 9031 | /* Check whether we really have an ELF howto. */ |
252b5132 RH |
9032 | |
9033 | if ((*areloc->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec) | |
9034 | { | |
9035 | bfd_reloc_code_real_type code; | |
9036 | reloc_howto_type *howto; | |
9037 | ||
9038 | /* Alien reloc: Try to determine its type to replace it with an | |
c044fabd | 9039 | equivalent ELF reloc. */ |
252b5132 RH |
9040 | |
9041 | if (areloc->howto->pc_relative) | |
9042 | { | |
9043 | switch (areloc->howto->bitsize) | |
9044 | { | |
9045 | case 8: | |
9046 | code = BFD_RELOC_8_PCREL; | |
9047 | break; | |
9048 | case 12: | |
9049 | code = BFD_RELOC_12_PCREL; | |
9050 | break; | |
9051 | case 16: | |
9052 | code = BFD_RELOC_16_PCREL; | |
9053 | break; | |
9054 | case 24: | |
9055 | code = BFD_RELOC_24_PCREL; | |
9056 | break; | |
9057 | case 32: | |
9058 | code = BFD_RELOC_32_PCREL; | |
9059 | break; | |
9060 | case 64: | |
9061 | code = BFD_RELOC_64_PCREL; | |
9062 | break; | |
9063 | default: | |
9064 | goto fail; | |
9065 | } | |
9066 | ||
9067 | howto = bfd_reloc_type_lookup (abfd, code); | |
9068 | ||
9069 | if (areloc->howto->pcrel_offset != howto->pcrel_offset) | |
9070 | { | |
9071 | if (howto->pcrel_offset) | |
9072 | areloc->addend += areloc->address; | |
9073 | else | |
9074 | areloc->addend -= areloc->address; /* addend is unsigned!! */ | |
9075 | } | |
9076 | } | |
9077 | else | |
9078 | { | |
9079 | switch (areloc->howto->bitsize) | |
9080 | { | |
9081 | case 8: | |
9082 | code = BFD_RELOC_8; | |
9083 | break; | |
9084 | case 14: | |
9085 | code = BFD_RELOC_14; | |
9086 | break; | |
9087 | case 16: | |
9088 | code = BFD_RELOC_16; | |
9089 | break; | |
9090 | case 26: | |
9091 | code = BFD_RELOC_26; | |
9092 | break; | |
9093 | case 32: | |
9094 | code = BFD_RELOC_32; | |
9095 | break; | |
9096 | case 64: | |
9097 | code = BFD_RELOC_64; | |
9098 | break; | |
9099 | default: | |
9100 | goto fail; | |
9101 | } | |
9102 | ||
9103 | howto = bfd_reloc_type_lookup (abfd, code); | |
9104 | } | |
9105 | ||
9106 | if (howto) | |
9107 | areloc->howto = howto; | |
9108 | else | |
9109 | goto fail; | |
9110 | } | |
9111 | ||
b34976b6 | 9112 | return TRUE; |
252b5132 RH |
9113 | |
9114 | fail: | |
0aa13fee AM |
9115 | /* xgettext:c-format */ |
9116 | _bfd_error_handler (_("%pB: %s unsupported"), | |
9117 | abfd, areloc->howto->name); | |
252b5132 | 9118 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 9119 | return FALSE; |
252b5132 RH |
9120 | } |
9121 | ||
b34976b6 | 9122 | bfd_boolean |
217aa764 | 9123 | _bfd_elf_close_and_cleanup (bfd *abfd) |
252b5132 | 9124 | { |
d9071b0c TG |
9125 | struct elf_obj_tdata *tdata = elf_tdata (abfd); |
9126 | if (bfd_get_format (abfd) == bfd_object && tdata != NULL) | |
252b5132 | 9127 | { |
c0355132 | 9128 | if (elf_tdata (abfd)->o != NULL && elf_shstrtab (abfd) != NULL) |
2b0f7ef9 | 9129 | _bfd_elf_strtab_free (elf_shstrtab (abfd)); |
d9071b0c | 9130 | _bfd_dwarf2_cleanup_debug_info (abfd, &tdata->dwarf2_find_line_info); |
252b5132 RH |
9131 | } |
9132 | ||
9133 | return _bfd_generic_close_and_cleanup (abfd); | |
9134 | } | |
9135 | ||
9136 | /* For Rel targets, we encode meaningful data for BFD_RELOC_VTABLE_ENTRY | |
9137 | in the relocation's offset. Thus we cannot allow any sort of sanity | |
9138 | range-checking to interfere. There is nothing else to do in processing | |
9139 | this reloc. */ | |
9140 | ||
9141 | bfd_reloc_status_type | |
217aa764 AM |
9142 | _bfd_elf_rel_vtable_reloc_fn |
9143 | (bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED, | |
fc0a2244 | 9144 | struct bfd_symbol *symbol ATTRIBUTE_UNUSED, |
217aa764 AM |
9145 | void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED, |
9146 | bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED) | |
252b5132 RH |
9147 | { |
9148 | return bfd_reloc_ok; | |
9149 | } | |
252b5132 RH |
9150 | \f |
9151 | /* Elf core file support. Much of this only works on native | |
9152 | toolchains, since we rely on knowing the | |
9153 | machine-dependent procfs structure in order to pick | |
c044fabd | 9154 | out details about the corefile. */ |
252b5132 RH |
9155 | |
9156 | #ifdef HAVE_SYS_PROCFS_H | |
16231b7b DG |
9157 | /* Needed for new procfs interface on sparc-solaris. */ |
9158 | # define _STRUCTURED_PROC 1 | |
252b5132 RH |
9159 | # include <sys/procfs.h> |
9160 | #endif | |
9161 | ||
261b8d08 PA |
9162 | /* Return a PID that identifies a "thread" for threaded cores, or the |
9163 | PID of the main process for non-threaded cores. */ | |
252b5132 RH |
9164 | |
9165 | static int | |
217aa764 | 9166 | elfcore_make_pid (bfd *abfd) |
252b5132 | 9167 | { |
261b8d08 PA |
9168 | int pid; |
9169 | ||
228e534f | 9170 | pid = elf_tdata (abfd)->core->lwpid; |
261b8d08 | 9171 | if (pid == 0) |
228e534f | 9172 | pid = elf_tdata (abfd)->core->pid; |
261b8d08 PA |
9173 | |
9174 | return pid; | |
252b5132 RH |
9175 | } |
9176 | ||
252b5132 RH |
9177 | /* If there isn't a section called NAME, make one, using |
9178 | data from SECT. Note, this function will generate a | |
9179 | reference to NAME, so you shouldn't deallocate or | |
c044fabd | 9180 | overwrite it. */ |
252b5132 | 9181 | |
b34976b6 | 9182 | static bfd_boolean |
217aa764 | 9183 | elfcore_maybe_make_sect (bfd *abfd, char *name, asection *sect) |
252b5132 | 9184 | { |
c044fabd | 9185 | asection *sect2; |
252b5132 RH |
9186 | |
9187 | if (bfd_get_section_by_name (abfd, name) != NULL) | |
b34976b6 | 9188 | return TRUE; |
252b5132 | 9189 | |
117ed4f8 | 9190 | sect2 = bfd_make_section_with_flags (abfd, name, sect->flags); |
252b5132 | 9191 | if (sect2 == NULL) |
b34976b6 | 9192 | return FALSE; |
252b5132 | 9193 | |
eea6121a | 9194 | sect2->size = sect->size; |
252b5132 | 9195 | sect2->filepos = sect->filepos; |
252b5132 | 9196 | sect2->alignment_power = sect->alignment_power; |
b34976b6 | 9197 | return TRUE; |
252b5132 RH |
9198 | } |
9199 | ||
bb0082d6 AM |
9200 | /* Create a pseudosection containing SIZE bytes at FILEPOS. This |
9201 | actually creates up to two pseudosections: | |
9202 | - For the single-threaded case, a section named NAME, unless | |
9203 | such a section already exists. | |
9204 | - For the multi-threaded case, a section named "NAME/PID", where | |
9205 | PID is elfcore_make_pid (abfd). | |
24d3e51b | 9206 | Both pseudosections have identical contents. */ |
b34976b6 | 9207 | bfd_boolean |
217aa764 AM |
9208 | _bfd_elfcore_make_pseudosection (bfd *abfd, |
9209 | char *name, | |
9210 | size_t size, | |
9211 | ufile_ptr filepos) | |
bb0082d6 AM |
9212 | { |
9213 | char buf[100]; | |
9214 | char *threaded_name; | |
d4c88bbb | 9215 | size_t len; |
bb0082d6 AM |
9216 | asection *sect; |
9217 | ||
9218 | /* Build the section name. */ | |
9219 | ||
9220 | sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd)); | |
d4c88bbb | 9221 | len = strlen (buf) + 1; |
a50b1753 | 9222 | threaded_name = (char *) bfd_alloc (abfd, len); |
bb0082d6 | 9223 | if (threaded_name == NULL) |
b34976b6 | 9224 | return FALSE; |
d4c88bbb | 9225 | memcpy (threaded_name, buf, len); |
bb0082d6 | 9226 | |
117ed4f8 AM |
9227 | sect = bfd_make_section_anyway_with_flags (abfd, threaded_name, |
9228 | SEC_HAS_CONTENTS); | |
bb0082d6 | 9229 | if (sect == NULL) |
b34976b6 | 9230 | return FALSE; |
eea6121a | 9231 | sect->size = size; |
bb0082d6 | 9232 | sect->filepos = filepos; |
bb0082d6 AM |
9233 | sect->alignment_power = 2; |
9234 | ||
936e320b | 9235 | return elfcore_maybe_make_sect (abfd, name, sect); |
bb0082d6 AM |
9236 | } |
9237 | ||
252b5132 | 9238 | /* prstatus_t exists on: |
4a938328 | 9239 | solaris 2.5+ |
252b5132 RH |
9240 | linux 2.[01] + glibc |
9241 | unixware 4.2 | |
9242 | */ | |
9243 | ||
9244 | #if defined (HAVE_PRSTATUS_T) | |
a7b97311 | 9245 | |
b34976b6 | 9246 | static bfd_boolean |
217aa764 | 9247 | elfcore_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9248 | { |
eea6121a | 9249 | size_t size; |
7ee38065 | 9250 | int offset; |
252b5132 | 9251 | |
4a938328 MS |
9252 | if (note->descsz == sizeof (prstatus_t)) |
9253 | { | |
9254 | prstatus_t prstat; | |
252b5132 | 9255 | |
eea6121a | 9256 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9257 | offset = offsetof (prstatus_t, pr_reg); |
4a938328 | 9258 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
252b5132 | 9259 | |
fa49d224 NC |
9260 | /* Do not overwrite the core signal if it |
9261 | has already been set by another thread. */ | |
228e534f AM |
9262 | if (elf_tdata (abfd)->core->signal == 0) |
9263 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9264 | if (elf_tdata (abfd)->core->pid == 0) | |
9265 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
252b5132 | 9266 | |
4a938328 MS |
9267 | /* pr_who exists on: |
9268 | solaris 2.5+ | |
9269 | unixware 4.2 | |
9270 | pr_who doesn't exist on: | |
9271 | linux 2.[01] | |
9272 | */ | |
252b5132 | 9273 | #if defined (HAVE_PRSTATUS_T_PR_WHO) |
228e534f | 9274 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9275 | #else |
228e534f | 9276 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
252b5132 | 9277 | #endif |
4a938328 | 9278 | } |
7ee38065 | 9279 | #if defined (HAVE_PRSTATUS32_T) |
4a938328 MS |
9280 | else if (note->descsz == sizeof (prstatus32_t)) |
9281 | { | |
9282 | /* 64-bit host, 32-bit corefile */ | |
9283 | prstatus32_t prstat; | |
9284 | ||
eea6121a | 9285 | size = sizeof (prstat.pr_reg); |
7ee38065 | 9286 | offset = offsetof (prstatus32_t, pr_reg); |
4a938328 MS |
9287 | memcpy (&prstat, note->descdata, sizeof (prstat)); |
9288 | ||
fa49d224 NC |
9289 | /* Do not overwrite the core signal if it |
9290 | has already been set by another thread. */ | |
228e534f AM |
9291 | if (elf_tdata (abfd)->core->signal == 0) |
9292 | elf_tdata (abfd)->core->signal = prstat.pr_cursig; | |
9293 | if (elf_tdata (abfd)->core->pid == 0) | |
9294 | elf_tdata (abfd)->core->pid = prstat.pr_pid; | |
4a938328 MS |
9295 | |
9296 | /* pr_who exists on: | |
9297 | solaris 2.5+ | |
9298 | unixware 4.2 | |
9299 | pr_who doesn't exist on: | |
9300 | linux 2.[01] | |
9301 | */ | |
7ee38065 | 9302 | #if defined (HAVE_PRSTATUS32_T_PR_WHO) |
228e534f | 9303 | elf_tdata (abfd)->core->lwpid = prstat.pr_who; |
261b8d08 | 9304 | #else |
228e534f | 9305 | elf_tdata (abfd)->core->lwpid = prstat.pr_pid; |
4a938328 MS |
9306 | #endif |
9307 | } | |
7ee38065 | 9308 | #endif /* HAVE_PRSTATUS32_T */ |
4a938328 MS |
9309 | else |
9310 | { | |
9311 | /* Fail - we don't know how to handle any other | |
9312 | note size (ie. data object type). */ | |
b34976b6 | 9313 | return TRUE; |
4a938328 | 9314 | } |
252b5132 | 9315 | |
bb0082d6 | 9316 | /* Make a ".reg/999" section and a ".reg" section. */ |
936e320b | 9317 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 9318 | size, note->descpos + offset); |
252b5132 RH |
9319 | } |
9320 | #endif /* defined (HAVE_PRSTATUS_T) */ | |
9321 | ||
bb0082d6 | 9322 | /* Create a pseudosection containing the exact contents of NOTE. */ |
b34976b6 | 9323 | static bfd_boolean |
217aa764 AM |
9324 | elfcore_make_note_pseudosection (bfd *abfd, |
9325 | char *name, | |
9326 | Elf_Internal_Note *note) | |
252b5132 | 9327 | { |
936e320b AM |
9328 | return _bfd_elfcore_make_pseudosection (abfd, name, |
9329 | note->descsz, note->descpos); | |
252b5132 RH |
9330 | } |
9331 | ||
ff08c6bb JB |
9332 | /* There isn't a consistent prfpregset_t across platforms, |
9333 | but it doesn't matter, because we don't have to pick this | |
c044fabd KH |
9334 | data structure apart. */ |
9335 | ||
b34976b6 | 9336 | static bfd_boolean |
217aa764 | 9337 | elfcore_grok_prfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9338 | { |
9339 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
9340 | } | |
9341 | ||
ff08c6bb | 9342 | /* Linux dumps the Intel SSE regs in a note named "LINUX" with a note |
971d4640 | 9343 | type of NT_PRXFPREG. Just include the whole note's contents |
ff08c6bb | 9344 | literally. */ |
c044fabd | 9345 | |
b34976b6 | 9346 | static bfd_boolean |
217aa764 | 9347 | elfcore_grok_prxfpreg (bfd *abfd, Elf_Internal_Note *note) |
ff08c6bb JB |
9348 | { |
9349 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
9350 | } | |
9351 | ||
4339cae0 L |
9352 | /* Linux dumps the Intel XSAVE extended state in a note named "LINUX" |
9353 | with a note type of NT_X86_XSTATE. Just include the whole note's | |
9354 | contents literally. */ | |
9355 | ||
9356 | static bfd_boolean | |
9357 | elfcore_grok_xstatereg (bfd *abfd, Elf_Internal_Note *note) | |
9358 | { | |
9359 | return elfcore_make_note_pseudosection (abfd, ".reg-xstate", note); | |
9360 | } | |
9361 | ||
97753bd5 AM |
9362 | static bfd_boolean |
9363 | elfcore_grok_ppc_vmx (bfd *abfd, Elf_Internal_Note *note) | |
9364 | { | |
9365 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vmx", note); | |
9366 | } | |
9367 | ||
89eeb0bc LM |
9368 | static bfd_boolean |
9369 | elfcore_grok_ppc_vsx (bfd *abfd, Elf_Internal_Note *note) | |
9370 | { | |
9371 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-vsx", note); | |
9372 | } | |
97753bd5 | 9373 | |
cb2366c1 EBM |
9374 | static bfd_boolean |
9375 | elfcore_grok_ppc_tar (bfd *abfd, Elf_Internal_Note *note) | |
9376 | { | |
9377 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tar", note); | |
9378 | } | |
9379 | ||
9380 | static bfd_boolean | |
9381 | elfcore_grok_ppc_ppr (bfd *abfd, Elf_Internal_Note *note) | |
9382 | { | |
9383 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ppr", note); | |
9384 | } | |
9385 | ||
9386 | static bfd_boolean | |
9387 | elfcore_grok_ppc_dscr (bfd *abfd, Elf_Internal_Note *note) | |
9388 | { | |
9389 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-dscr", note); | |
9390 | } | |
9391 | ||
9392 | static bfd_boolean | |
9393 | elfcore_grok_ppc_ebb (bfd *abfd, Elf_Internal_Note *note) | |
9394 | { | |
9395 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-ebb", note); | |
9396 | } | |
9397 | ||
9398 | static bfd_boolean | |
9399 | elfcore_grok_ppc_pmu (bfd *abfd, Elf_Internal_Note *note) | |
9400 | { | |
9401 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-pmu", note); | |
9402 | } | |
9403 | ||
9404 | static bfd_boolean | |
9405 | elfcore_grok_ppc_tm_cgpr (bfd *abfd, Elf_Internal_Note *note) | |
9406 | { | |
9407 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cgpr", note); | |
9408 | } | |
9409 | ||
9410 | static bfd_boolean | |
9411 | elfcore_grok_ppc_tm_cfpr (bfd *abfd, Elf_Internal_Note *note) | |
9412 | { | |
9413 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cfpr", note); | |
9414 | } | |
9415 | ||
9416 | static bfd_boolean | |
9417 | elfcore_grok_ppc_tm_cvmx (bfd *abfd, Elf_Internal_Note *note) | |
9418 | { | |
9419 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvmx", note); | |
9420 | } | |
9421 | ||
9422 | static bfd_boolean | |
9423 | elfcore_grok_ppc_tm_cvsx (bfd *abfd, Elf_Internal_Note *note) | |
9424 | { | |
9425 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cvsx", note); | |
9426 | } | |
9427 | ||
9428 | static bfd_boolean | |
9429 | elfcore_grok_ppc_tm_spr (bfd *abfd, Elf_Internal_Note *note) | |
9430 | { | |
9431 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-spr", note); | |
9432 | } | |
9433 | ||
9434 | static bfd_boolean | |
9435 | elfcore_grok_ppc_tm_ctar (bfd *abfd, Elf_Internal_Note *note) | |
9436 | { | |
9437 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-ctar", note); | |
9438 | } | |
9439 | ||
9440 | static bfd_boolean | |
9441 | elfcore_grok_ppc_tm_cppr (bfd *abfd, Elf_Internal_Note *note) | |
9442 | { | |
9443 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cppr", note); | |
9444 | } | |
9445 | ||
9446 | static bfd_boolean | |
9447 | elfcore_grok_ppc_tm_cdscr (bfd *abfd, Elf_Internal_Note *note) | |
9448 | { | |
9449 | return elfcore_make_note_pseudosection (abfd, ".reg-ppc-tm-cdscr", note); | |
9450 | } | |
9451 | ||
0675e188 UW |
9452 | static bfd_boolean |
9453 | elfcore_grok_s390_high_gprs (bfd *abfd, Elf_Internal_Note *note) | |
9454 | { | |
9455 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-high-gprs", note); | |
9456 | } | |
9457 | ||
d7eeb400 MS |
9458 | static bfd_boolean |
9459 | elfcore_grok_s390_timer (bfd *abfd, Elf_Internal_Note *note) | |
9460 | { | |
9461 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-timer", note); | |
9462 | } | |
9463 | ||
9464 | static bfd_boolean | |
9465 | elfcore_grok_s390_todcmp (bfd *abfd, Elf_Internal_Note *note) | |
9466 | { | |
9467 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todcmp", note); | |
9468 | } | |
9469 | ||
9470 | static bfd_boolean | |
9471 | elfcore_grok_s390_todpreg (bfd *abfd, Elf_Internal_Note *note) | |
9472 | { | |
9473 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-todpreg", note); | |
9474 | } | |
9475 | ||
9476 | static bfd_boolean | |
9477 | elfcore_grok_s390_ctrs (bfd *abfd, Elf_Internal_Note *note) | |
9478 | { | |
9479 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-ctrs", note); | |
9480 | } | |
9481 | ||
9482 | static bfd_boolean | |
9483 | elfcore_grok_s390_prefix (bfd *abfd, Elf_Internal_Note *note) | |
9484 | { | |
9485 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-prefix", note); | |
9486 | } | |
9487 | ||
355b81d9 UW |
9488 | static bfd_boolean |
9489 | elfcore_grok_s390_last_break (bfd *abfd, Elf_Internal_Note *note) | |
9490 | { | |
9491 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-last-break", note); | |
9492 | } | |
9493 | ||
9494 | static bfd_boolean | |
9495 | elfcore_grok_s390_system_call (bfd *abfd, Elf_Internal_Note *note) | |
9496 | { | |
9497 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-system-call", note); | |
9498 | } | |
9499 | ||
abb3f6cc NC |
9500 | static bfd_boolean |
9501 | elfcore_grok_s390_tdb (bfd *abfd, Elf_Internal_Note *note) | |
9502 | { | |
9503 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-tdb", note); | |
9504 | } | |
9505 | ||
4ef9f41a AA |
9506 | static bfd_boolean |
9507 | elfcore_grok_s390_vxrs_low (bfd *abfd, Elf_Internal_Note *note) | |
9508 | { | |
9509 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-low", note); | |
9510 | } | |
9511 | ||
9512 | static bfd_boolean | |
9513 | elfcore_grok_s390_vxrs_high (bfd *abfd, Elf_Internal_Note *note) | |
9514 | { | |
9515 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-vxrs-high", note); | |
9516 | } | |
9517 | ||
88ab90e8 AA |
9518 | static bfd_boolean |
9519 | elfcore_grok_s390_gs_cb (bfd *abfd, Elf_Internal_Note *note) | |
9520 | { | |
9521 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-cb", note); | |
9522 | } | |
9523 | ||
9524 | static bfd_boolean | |
9525 | elfcore_grok_s390_gs_bc (bfd *abfd, Elf_Internal_Note *note) | |
9526 | { | |
9527 | return elfcore_make_note_pseudosection (abfd, ".reg-s390-gs-bc", note); | |
9528 | } | |
9529 | ||
faa9a424 UW |
9530 | static bfd_boolean |
9531 | elfcore_grok_arm_vfp (bfd *abfd, Elf_Internal_Note *note) | |
9532 | { | |
9533 | return elfcore_make_note_pseudosection (abfd, ".reg-arm-vfp", note); | |
9534 | } | |
9535 | ||
652451f8 YZ |
9536 | static bfd_boolean |
9537 | elfcore_grok_aarch_tls (bfd *abfd, Elf_Internal_Note *note) | |
9538 | { | |
9539 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-tls", note); | |
9540 | } | |
9541 | ||
9542 | static bfd_boolean | |
9543 | elfcore_grok_aarch_hw_break (bfd *abfd, Elf_Internal_Note *note) | |
9544 | { | |
9545 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-break", note); | |
9546 | } | |
9547 | ||
9548 | static bfd_boolean | |
9549 | elfcore_grok_aarch_hw_watch (bfd *abfd, Elf_Internal_Note *note) | |
9550 | { | |
9551 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-hw-watch", note); | |
9552 | } | |
9553 | ||
ad1cc4e4 AH |
9554 | static bfd_boolean |
9555 | elfcore_grok_aarch_sve (bfd *abfd, Elf_Internal_Note *note) | |
9556 | { | |
9557 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-sve", note); | |
9558 | } | |
9559 | ||
e6c3b5bf AH |
9560 | static bfd_boolean |
9561 | elfcore_grok_aarch_pauth (bfd *abfd, Elf_Internal_Note *note) | |
9562 | { | |
9563 | return elfcore_make_note_pseudosection (abfd, ".reg-aarch-pauth", note); | |
9564 | } | |
9565 | ||
252b5132 | 9566 | #if defined (HAVE_PRPSINFO_T) |
4a938328 | 9567 | typedef prpsinfo_t elfcore_psinfo_t; |
7ee38065 | 9568 | #if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9569 | typedef prpsinfo32_t elfcore_psinfo32_t; |
9570 | #endif | |
252b5132 RH |
9571 | #endif |
9572 | ||
9573 | #if defined (HAVE_PSINFO_T) | |
4a938328 | 9574 | typedef psinfo_t elfcore_psinfo_t; |
7ee38065 | 9575 | #if defined (HAVE_PSINFO32_T) /* Sparc64 cross Sparc32 */ |
4a938328 MS |
9576 | typedef psinfo32_t elfcore_psinfo32_t; |
9577 | #endif | |
252b5132 RH |
9578 | #endif |
9579 | ||
252b5132 RH |
9580 | /* return a malloc'ed copy of a string at START which is at |
9581 | most MAX bytes long, possibly without a terminating '\0'. | |
c044fabd | 9582 | the copy will always have a terminating '\0'. */ |
252b5132 | 9583 | |
936e320b | 9584 | char * |
217aa764 | 9585 | _bfd_elfcore_strndup (bfd *abfd, char *start, size_t max) |
252b5132 | 9586 | { |
dc810e39 | 9587 | char *dups; |
a50b1753 | 9588 | char *end = (char *) memchr (start, '\0', max); |
dc810e39 | 9589 | size_t len; |
252b5132 RH |
9590 | |
9591 | if (end == NULL) | |
9592 | len = max; | |
9593 | else | |
9594 | len = end - start; | |
9595 | ||
a50b1753 | 9596 | dups = (char *) bfd_alloc (abfd, len + 1); |
dc810e39 | 9597 | if (dups == NULL) |
252b5132 RH |
9598 | return NULL; |
9599 | ||
dc810e39 AM |
9600 | memcpy (dups, start, len); |
9601 | dups[len] = '\0'; | |
252b5132 | 9602 | |
dc810e39 | 9603 | return dups; |
252b5132 RH |
9604 | } |
9605 | ||
bb0082d6 | 9606 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
b34976b6 | 9607 | static bfd_boolean |
217aa764 | 9608 | elfcore_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9609 | { |
4a938328 MS |
9610 | if (note->descsz == sizeof (elfcore_psinfo_t)) |
9611 | { | |
9612 | elfcore_psinfo_t psinfo; | |
252b5132 | 9613 | |
7ee38065 | 9614 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9615 | |
335e41d4 | 9616 | #if defined (HAVE_PSINFO_T_PR_PID) || defined (HAVE_PRPSINFO_T_PR_PID) |
228e534f | 9617 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9618 | #endif |
228e534f | 9619 | elf_tdata (abfd)->core->program |
936e320b AM |
9620 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9621 | sizeof (psinfo.pr_fname)); | |
252b5132 | 9622 | |
228e534f | 9623 | elf_tdata (abfd)->core->command |
936e320b AM |
9624 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9625 | sizeof (psinfo.pr_psargs)); | |
4a938328 | 9626 | } |
7ee38065 | 9627 | #if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
4a938328 MS |
9628 | else if (note->descsz == sizeof (elfcore_psinfo32_t)) |
9629 | { | |
9630 | /* 64-bit host, 32-bit corefile */ | |
9631 | elfcore_psinfo32_t psinfo; | |
9632 | ||
7ee38065 | 9633 | memcpy (&psinfo, note->descdata, sizeof (psinfo)); |
252b5132 | 9634 | |
335e41d4 | 9635 | #if defined (HAVE_PSINFO32_T_PR_PID) || defined (HAVE_PRPSINFO32_T_PR_PID) |
228e534f | 9636 | elf_tdata (abfd)->core->pid = psinfo.pr_pid; |
335e41d4 | 9637 | #endif |
228e534f | 9638 | elf_tdata (abfd)->core->program |
936e320b AM |
9639 | = _bfd_elfcore_strndup (abfd, psinfo.pr_fname, |
9640 | sizeof (psinfo.pr_fname)); | |
4a938328 | 9641 | |
228e534f | 9642 | elf_tdata (abfd)->core->command |
936e320b AM |
9643 | = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs, |
9644 | sizeof (psinfo.pr_psargs)); | |
4a938328 MS |
9645 | } |
9646 | #endif | |
9647 | ||
9648 | else | |
9649 | { | |
9650 | /* Fail - we don't know how to handle any other | |
9651 | note size (ie. data object type). */ | |
b34976b6 | 9652 | return TRUE; |
4a938328 | 9653 | } |
252b5132 RH |
9654 | |
9655 | /* Note that for some reason, a spurious space is tacked | |
9656 | onto the end of the args in some (at least one anyway) | |
c044fabd | 9657 | implementations, so strip it off if it exists. */ |
252b5132 RH |
9658 | |
9659 | { | |
228e534f | 9660 | char *command = elf_tdata (abfd)->core->command; |
252b5132 RH |
9661 | int n = strlen (command); |
9662 | ||
9663 | if (0 < n && command[n - 1] == ' ') | |
9664 | command[n - 1] = '\0'; | |
9665 | } | |
9666 | ||
b34976b6 | 9667 | return TRUE; |
252b5132 RH |
9668 | } |
9669 | #endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */ | |
9670 | ||
252b5132 | 9671 | #if defined (HAVE_PSTATUS_T) |
b34976b6 | 9672 | static bfd_boolean |
217aa764 | 9673 | elfcore_grok_pstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9674 | { |
f572a39d AM |
9675 | if (note->descsz == sizeof (pstatus_t) |
9676 | #if defined (HAVE_PXSTATUS_T) | |
9677 | || note->descsz == sizeof (pxstatus_t) | |
9678 | #endif | |
9679 | ) | |
4a938328 MS |
9680 | { |
9681 | pstatus_t pstat; | |
252b5132 | 9682 | |
4a938328 | 9683 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9684 | |
228e534f | 9685 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 | 9686 | } |
7ee38065 | 9687 | #if defined (HAVE_PSTATUS32_T) |
4a938328 MS |
9688 | else if (note->descsz == sizeof (pstatus32_t)) |
9689 | { | |
9690 | /* 64-bit host, 32-bit corefile */ | |
9691 | pstatus32_t pstat; | |
252b5132 | 9692 | |
4a938328 | 9693 | memcpy (&pstat, note->descdata, sizeof (pstat)); |
252b5132 | 9694 | |
228e534f | 9695 | elf_tdata (abfd)->core->pid = pstat.pr_pid; |
4a938328 MS |
9696 | } |
9697 | #endif | |
252b5132 RH |
9698 | /* Could grab some more details from the "representative" |
9699 | lwpstatus_t in pstat.pr_lwp, but we'll catch it all in an | |
c044fabd | 9700 | NT_LWPSTATUS note, presumably. */ |
252b5132 | 9701 | |
b34976b6 | 9702 | return TRUE; |
252b5132 RH |
9703 | } |
9704 | #endif /* defined (HAVE_PSTATUS_T) */ | |
9705 | ||
252b5132 | 9706 | #if defined (HAVE_LWPSTATUS_T) |
b34976b6 | 9707 | static bfd_boolean |
217aa764 | 9708 | elfcore_grok_lwpstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 RH |
9709 | { |
9710 | lwpstatus_t lwpstat; | |
9711 | char buf[100]; | |
c044fabd | 9712 | char *name; |
d4c88bbb | 9713 | size_t len; |
c044fabd | 9714 | asection *sect; |
252b5132 | 9715 | |
f572a39d AM |
9716 | if (note->descsz != sizeof (lwpstat) |
9717 | #if defined (HAVE_LWPXSTATUS_T) | |
9718 | && note->descsz != sizeof (lwpxstatus_t) | |
9719 | #endif | |
9720 | ) | |
b34976b6 | 9721 | return TRUE; |
252b5132 RH |
9722 | |
9723 | memcpy (&lwpstat, note->descdata, sizeof (lwpstat)); | |
9724 | ||
228e534f | 9725 | elf_tdata (abfd)->core->lwpid = lwpstat.pr_lwpid; |
a1504221 JB |
9726 | /* Do not overwrite the core signal if it has already been set by |
9727 | another thread. */ | |
228e534f AM |
9728 | if (elf_tdata (abfd)->core->signal == 0) |
9729 | elf_tdata (abfd)->core->signal = lwpstat.pr_cursig; | |
252b5132 | 9730 | |
c044fabd | 9731 | /* Make a ".reg/999" section. */ |
252b5132 RH |
9732 | |
9733 | sprintf (buf, ".reg/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9734 | len = strlen (buf) + 1; |
217aa764 | 9735 | name = bfd_alloc (abfd, len); |
252b5132 | 9736 | if (name == NULL) |
b34976b6 | 9737 | return FALSE; |
d4c88bbb | 9738 | memcpy (name, buf, len); |
252b5132 | 9739 | |
117ed4f8 | 9740 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9741 | if (sect == NULL) |
b34976b6 | 9742 | return FALSE; |
252b5132 RH |
9743 | |
9744 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9745 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.gregs); |
252b5132 RH |
9746 | sect->filepos = note->descpos |
9747 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.gregs); | |
9748 | #endif | |
9749 | ||
9750 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
eea6121a | 9751 | sect->size = sizeof (lwpstat.pr_reg); |
252b5132 RH |
9752 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_reg); |
9753 | #endif | |
9754 | ||
252b5132 RH |
9755 | sect->alignment_power = 2; |
9756 | ||
9757 | if (!elfcore_maybe_make_sect (abfd, ".reg", sect)) | |
b34976b6 | 9758 | return FALSE; |
252b5132 RH |
9759 | |
9760 | /* Make a ".reg2/999" section */ | |
9761 | ||
9762 | sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd)); | |
d4c88bbb | 9763 | len = strlen (buf) + 1; |
217aa764 | 9764 | name = bfd_alloc (abfd, len); |
252b5132 | 9765 | if (name == NULL) |
b34976b6 | 9766 | return FALSE; |
d4c88bbb | 9767 | memcpy (name, buf, len); |
252b5132 | 9768 | |
117ed4f8 | 9769 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
252b5132 | 9770 | if (sect == NULL) |
b34976b6 | 9771 | return FALSE; |
252b5132 RH |
9772 | |
9773 | #if defined (HAVE_LWPSTATUS_T_PR_CONTEXT) | |
eea6121a | 9774 | sect->size = sizeof (lwpstat.pr_context.uc_mcontext.fpregs); |
252b5132 RH |
9775 | sect->filepos = note->descpos |
9776 | + offsetof (lwpstatus_t, pr_context.uc_mcontext.fpregs); | |
9777 | #endif | |
9778 | ||
9779 | #if defined (HAVE_LWPSTATUS_T_PR_FPREG) | |
eea6121a | 9780 | sect->size = sizeof (lwpstat.pr_fpreg); |
252b5132 RH |
9781 | sect->filepos = note->descpos + offsetof (lwpstatus_t, pr_fpreg); |
9782 | #endif | |
9783 | ||
252b5132 RH |
9784 | sect->alignment_power = 2; |
9785 | ||
936e320b | 9786 | return elfcore_maybe_make_sect (abfd, ".reg2", sect); |
252b5132 RH |
9787 | } |
9788 | #endif /* defined (HAVE_LWPSTATUS_T) */ | |
9789 | ||
b34976b6 | 9790 | static bfd_boolean |
217aa764 | 9791 | elfcore_grok_win32pstatus (bfd *abfd, Elf_Internal_Note *note) |
16e9c715 NC |
9792 | { |
9793 | char buf[30]; | |
c044fabd | 9794 | char *name; |
d4c88bbb | 9795 | size_t len; |
c044fabd | 9796 | asection *sect; |
4a6636fb PA |
9797 | int type; |
9798 | int is_active_thread; | |
9799 | bfd_vma base_addr; | |
16e9c715 | 9800 | |
4a6636fb | 9801 | if (note->descsz < 728) |
b34976b6 | 9802 | return TRUE; |
16e9c715 | 9803 | |
4a6636fb PA |
9804 | if (! CONST_STRNEQ (note->namedata, "win32")) |
9805 | return TRUE; | |
9806 | ||
9807 | type = bfd_get_32 (abfd, note->descdata); | |
c044fabd | 9808 | |
4a6636fb | 9809 | switch (type) |
16e9c715 | 9810 | { |
4a6636fb | 9811 | case 1 /* NOTE_INFO_PROCESS */: |
228e534f | 9812 | /* FIXME: need to add ->core->command. */ |
4a6636fb | 9813 | /* process_info.pid */ |
228e534f | 9814 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 8); |
4a6636fb | 9815 | /* process_info.signal */ |
228e534f | 9816 | elf_tdata (abfd)->core->signal = bfd_get_32 (abfd, note->descdata + 12); |
c044fabd | 9817 | break; |
16e9c715 | 9818 | |
4a6636fb | 9819 | case 2 /* NOTE_INFO_THREAD */: |
16e9c715 | 9820 | /* Make a ".reg/999" section. */ |
4a6636fb PA |
9821 | /* thread_info.tid */ |
9822 | sprintf (buf, ".reg/%ld", (long) bfd_get_32 (abfd, note->descdata + 8)); | |
c044fabd | 9823 | |
d4c88bbb | 9824 | len = strlen (buf) + 1; |
a50b1753 | 9825 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9826 | if (name == NULL) |
b34976b6 | 9827 | return FALSE; |
c044fabd | 9828 | |
d4c88bbb | 9829 | memcpy (name, buf, len); |
16e9c715 | 9830 | |
117ed4f8 | 9831 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
16e9c715 | 9832 | if (sect == NULL) |
b34976b6 | 9833 | return FALSE; |
c044fabd | 9834 | |
4a6636fb PA |
9835 | /* sizeof (thread_info.thread_context) */ |
9836 | sect->size = 716; | |
9837 | /* offsetof (thread_info.thread_context) */ | |
9838 | sect->filepos = note->descpos + 12; | |
16e9c715 NC |
9839 | sect->alignment_power = 2; |
9840 | ||
4a6636fb PA |
9841 | /* thread_info.is_active_thread */ |
9842 | is_active_thread = bfd_get_32 (abfd, note->descdata + 8); | |
9843 | ||
9844 | if (is_active_thread) | |
16e9c715 | 9845 | if (! elfcore_maybe_make_sect (abfd, ".reg", sect)) |
b34976b6 | 9846 | return FALSE; |
16e9c715 NC |
9847 | break; |
9848 | ||
4a6636fb | 9849 | case 3 /* NOTE_INFO_MODULE */: |
16e9c715 | 9850 | /* Make a ".module/xxxxxxxx" section. */ |
4a6636fb PA |
9851 | /* module_info.base_address */ |
9852 | base_addr = bfd_get_32 (abfd, note->descdata + 4); | |
0af1713e | 9853 | sprintf (buf, ".module/%08lx", (unsigned long) base_addr); |
c044fabd | 9854 | |
d4c88bbb | 9855 | len = strlen (buf) + 1; |
a50b1753 | 9856 | name = (char *) bfd_alloc (abfd, len); |
16e9c715 | 9857 | if (name == NULL) |
b34976b6 | 9858 | return FALSE; |
c044fabd | 9859 | |
d4c88bbb | 9860 | memcpy (name, buf, len); |
252b5132 | 9861 | |
117ed4f8 | 9862 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
c044fabd | 9863 | |
16e9c715 | 9864 | if (sect == NULL) |
b34976b6 | 9865 | return FALSE; |
c044fabd | 9866 | |
eea6121a | 9867 | sect->size = note->descsz; |
16e9c715 | 9868 | sect->filepos = note->descpos; |
16e9c715 NC |
9869 | sect->alignment_power = 2; |
9870 | break; | |
9871 | ||
9872 | default: | |
b34976b6 | 9873 | return TRUE; |
16e9c715 NC |
9874 | } |
9875 | ||
b34976b6 | 9876 | return TRUE; |
16e9c715 | 9877 | } |
252b5132 | 9878 | |
b34976b6 | 9879 | static bfd_boolean |
217aa764 | 9880 | elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 9881 | { |
9c5bfbb7 | 9882 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
bb0082d6 | 9883 | |
252b5132 RH |
9884 | switch (note->type) |
9885 | { | |
9886 | default: | |
b34976b6 | 9887 | return TRUE; |
252b5132 | 9888 | |
252b5132 | 9889 | case NT_PRSTATUS: |
bb0082d6 AM |
9890 | if (bed->elf_backend_grok_prstatus) |
9891 | if ((*bed->elf_backend_grok_prstatus) (abfd, note)) | |
b34976b6 | 9892 | return TRUE; |
bb0082d6 | 9893 | #if defined (HAVE_PRSTATUS_T) |
252b5132 | 9894 | return elfcore_grok_prstatus (abfd, note); |
bb0082d6 | 9895 | #else |
b34976b6 | 9896 | return TRUE; |
252b5132 RH |
9897 | #endif |
9898 | ||
9899 | #if defined (HAVE_PSTATUS_T) | |
9900 | case NT_PSTATUS: | |
9901 | return elfcore_grok_pstatus (abfd, note); | |
9902 | #endif | |
9903 | ||
9904 | #if defined (HAVE_LWPSTATUS_T) | |
9905 | case NT_LWPSTATUS: | |
9906 | return elfcore_grok_lwpstatus (abfd, note); | |
9907 | #endif | |
9908 | ||
9909 | case NT_FPREGSET: /* FIXME: rename to NT_PRFPREG */ | |
9910 | return elfcore_grok_prfpreg (abfd, note); | |
9911 | ||
c044fabd | 9912 | case NT_WIN32PSTATUS: |
16e9c715 | 9913 | return elfcore_grok_win32pstatus (abfd, note); |
16e9c715 | 9914 | |
c044fabd | 9915 | case NT_PRXFPREG: /* Linux SSE extension */ |
e377ab71 MK |
9916 | if (note->namesz == 6 |
9917 | && strcmp (note->namedata, "LINUX") == 0) | |
ff08c6bb JB |
9918 | return elfcore_grok_prxfpreg (abfd, note); |
9919 | else | |
b34976b6 | 9920 | return TRUE; |
ff08c6bb | 9921 | |
4339cae0 L |
9922 | case NT_X86_XSTATE: /* Linux XSAVE extension */ |
9923 | if (note->namesz == 6 | |
9924 | && strcmp (note->namedata, "LINUX") == 0) | |
9925 | return elfcore_grok_xstatereg (abfd, note); | |
9926 | else | |
9927 | return TRUE; | |
9928 | ||
97753bd5 AM |
9929 | case NT_PPC_VMX: |
9930 | if (note->namesz == 6 | |
9931 | && strcmp (note->namedata, "LINUX") == 0) | |
9932 | return elfcore_grok_ppc_vmx (abfd, note); | |
9933 | else | |
9934 | return TRUE; | |
9935 | ||
89eeb0bc LM |
9936 | case NT_PPC_VSX: |
9937 | if (note->namesz == 6 | |
07d6d2b8 AM |
9938 | && strcmp (note->namedata, "LINUX") == 0) |
9939 | return elfcore_grok_ppc_vsx (abfd, note); | |
89eeb0bc | 9940 | else |
07d6d2b8 | 9941 | return TRUE; |
89eeb0bc | 9942 | |
cb2366c1 EBM |
9943 | case NT_PPC_TAR: |
9944 | if (note->namesz == 6 | |
4b24dd1a AM |
9945 | && strcmp (note->namedata, "LINUX") == 0) |
9946 | return elfcore_grok_ppc_tar (abfd, note); | |
cb2366c1 | 9947 | else |
4b24dd1a | 9948 | return TRUE; |
cb2366c1 EBM |
9949 | |
9950 | case NT_PPC_PPR: | |
9951 | if (note->namesz == 6 | |
4b24dd1a AM |
9952 | && strcmp (note->namedata, "LINUX") == 0) |
9953 | return elfcore_grok_ppc_ppr (abfd, note); | |
cb2366c1 | 9954 | else |
4b24dd1a | 9955 | return TRUE; |
cb2366c1 EBM |
9956 | |
9957 | case NT_PPC_DSCR: | |
9958 | if (note->namesz == 6 | |
4b24dd1a AM |
9959 | && strcmp (note->namedata, "LINUX") == 0) |
9960 | return elfcore_grok_ppc_dscr (abfd, note); | |
cb2366c1 | 9961 | else |
4b24dd1a | 9962 | return TRUE; |
cb2366c1 EBM |
9963 | |
9964 | case NT_PPC_EBB: | |
9965 | if (note->namesz == 6 | |
4b24dd1a AM |
9966 | && strcmp (note->namedata, "LINUX") == 0) |
9967 | return elfcore_grok_ppc_ebb (abfd, note); | |
cb2366c1 | 9968 | else |
4b24dd1a | 9969 | return TRUE; |
cb2366c1 EBM |
9970 | |
9971 | case NT_PPC_PMU: | |
9972 | if (note->namesz == 6 | |
4b24dd1a AM |
9973 | && strcmp (note->namedata, "LINUX") == 0) |
9974 | return elfcore_grok_ppc_pmu (abfd, note); | |
cb2366c1 | 9975 | else |
4b24dd1a | 9976 | return TRUE; |
cb2366c1 EBM |
9977 | |
9978 | case NT_PPC_TM_CGPR: | |
9979 | if (note->namesz == 6 | |
4b24dd1a AM |
9980 | && strcmp (note->namedata, "LINUX") == 0) |
9981 | return elfcore_grok_ppc_tm_cgpr (abfd, note); | |
cb2366c1 | 9982 | else |
4b24dd1a | 9983 | return TRUE; |
cb2366c1 EBM |
9984 | |
9985 | case NT_PPC_TM_CFPR: | |
9986 | if (note->namesz == 6 | |
4b24dd1a AM |
9987 | && strcmp (note->namedata, "LINUX") == 0) |
9988 | return elfcore_grok_ppc_tm_cfpr (abfd, note); | |
cb2366c1 | 9989 | else |
4b24dd1a | 9990 | return TRUE; |
cb2366c1 EBM |
9991 | |
9992 | case NT_PPC_TM_CVMX: | |
9993 | if (note->namesz == 6 | |
4b24dd1a AM |
9994 | && strcmp (note->namedata, "LINUX") == 0) |
9995 | return elfcore_grok_ppc_tm_cvmx (abfd, note); | |
cb2366c1 | 9996 | else |
4b24dd1a | 9997 | return TRUE; |
cb2366c1 EBM |
9998 | |
9999 | case NT_PPC_TM_CVSX: | |
10000 | if (note->namesz == 6 | |
4b24dd1a AM |
10001 | && strcmp (note->namedata, "LINUX") == 0) |
10002 | return elfcore_grok_ppc_tm_cvsx (abfd, note); | |
cb2366c1 | 10003 | else |
4b24dd1a | 10004 | return TRUE; |
cb2366c1 EBM |
10005 | |
10006 | case NT_PPC_TM_SPR: | |
10007 | if (note->namesz == 6 | |
4b24dd1a AM |
10008 | && strcmp (note->namedata, "LINUX") == 0) |
10009 | return elfcore_grok_ppc_tm_spr (abfd, note); | |
cb2366c1 | 10010 | else |
4b24dd1a | 10011 | return TRUE; |
cb2366c1 EBM |
10012 | |
10013 | case NT_PPC_TM_CTAR: | |
10014 | if (note->namesz == 6 | |
4b24dd1a AM |
10015 | && strcmp (note->namedata, "LINUX") == 0) |
10016 | return elfcore_grok_ppc_tm_ctar (abfd, note); | |
cb2366c1 | 10017 | else |
4b24dd1a | 10018 | return TRUE; |
cb2366c1 EBM |
10019 | |
10020 | case NT_PPC_TM_CPPR: | |
10021 | if (note->namesz == 6 | |
4b24dd1a AM |
10022 | && strcmp (note->namedata, "LINUX") == 0) |
10023 | return elfcore_grok_ppc_tm_cppr (abfd, note); | |
cb2366c1 | 10024 | else |
4b24dd1a | 10025 | return TRUE; |
cb2366c1 EBM |
10026 | |
10027 | case NT_PPC_TM_CDSCR: | |
10028 | if (note->namesz == 6 | |
4b24dd1a AM |
10029 | && strcmp (note->namedata, "LINUX") == 0) |
10030 | return elfcore_grok_ppc_tm_cdscr (abfd, note); | |
cb2366c1 | 10031 | else |
4b24dd1a | 10032 | return TRUE; |
cb2366c1 | 10033 | |
0675e188 UW |
10034 | case NT_S390_HIGH_GPRS: |
10035 | if (note->namesz == 6 | |
07d6d2b8 AM |
10036 | && strcmp (note->namedata, "LINUX") == 0) |
10037 | return elfcore_grok_s390_high_gprs (abfd, note); | |
0675e188 | 10038 | else |
07d6d2b8 | 10039 | return TRUE; |
0675e188 | 10040 | |
d7eeb400 MS |
10041 | case NT_S390_TIMER: |
10042 | if (note->namesz == 6 | |
07d6d2b8 AM |
10043 | && strcmp (note->namedata, "LINUX") == 0) |
10044 | return elfcore_grok_s390_timer (abfd, note); | |
d7eeb400 | 10045 | else |
07d6d2b8 | 10046 | return TRUE; |
d7eeb400 MS |
10047 | |
10048 | case NT_S390_TODCMP: | |
10049 | if (note->namesz == 6 | |
07d6d2b8 AM |
10050 | && strcmp (note->namedata, "LINUX") == 0) |
10051 | return elfcore_grok_s390_todcmp (abfd, note); | |
d7eeb400 | 10052 | else |
07d6d2b8 | 10053 | return TRUE; |
d7eeb400 MS |
10054 | |
10055 | case NT_S390_TODPREG: | |
10056 | if (note->namesz == 6 | |
07d6d2b8 AM |
10057 | && strcmp (note->namedata, "LINUX") == 0) |
10058 | return elfcore_grok_s390_todpreg (abfd, note); | |
d7eeb400 | 10059 | else |
07d6d2b8 | 10060 | return TRUE; |
d7eeb400 MS |
10061 | |
10062 | case NT_S390_CTRS: | |
10063 | if (note->namesz == 6 | |
07d6d2b8 AM |
10064 | && strcmp (note->namedata, "LINUX") == 0) |
10065 | return elfcore_grok_s390_ctrs (abfd, note); | |
d7eeb400 | 10066 | else |
07d6d2b8 | 10067 | return TRUE; |
d7eeb400 MS |
10068 | |
10069 | case NT_S390_PREFIX: | |
10070 | if (note->namesz == 6 | |
07d6d2b8 AM |
10071 | && strcmp (note->namedata, "LINUX") == 0) |
10072 | return elfcore_grok_s390_prefix (abfd, note); | |
d7eeb400 | 10073 | else |
07d6d2b8 | 10074 | return TRUE; |
d7eeb400 | 10075 | |
355b81d9 UW |
10076 | case NT_S390_LAST_BREAK: |
10077 | if (note->namesz == 6 | |
07d6d2b8 AM |
10078 | && strcmp (note->namedata, "LINUX") == 0) |
10079 | return elfcore_grok_s390_last_break (abfd, note); | |
355b81d9 | 10080 | else |
07d6d2b8 | 10081 | return TRUE; |
355b81d9 UW |
10082 | |
10083 | case NT_S390_SYSTEM_CALL: | |
10084 | if (note->namesz == 6 | |
07d6d2b8 AM |
10085 | && strcmp (note->namedata, "LINUX") == 0) |
10086 | return elfcore_grok_s390_system_call (abfd, note); | |
355b81d9 | 10087 | else |
07d6d2b8 | 10088 | return TRUE; |
355b81d9 | 10089 | |
abb3f6cc NC |
10090 | case NT_S390_TDB: |
10091 | if (note->namesz == 6 | |
07d6d2b8 AM |
10092 | && strcmp (note->namedata, "LINUX") == 0) |
10093 | return elfcore_grok_s390_tdb (abfd, note); | |
abb3f6cc | 10094 | else |
07d6d2b8 | 10095 | return TRUE; |
abb3f6cc | 10096 | |
4ef9f41a AA |
10097 | case NT_S390_VXRS_LOW: |
10098 | if (note->namesz == 6 | |
10099 | && strcmp (note->namedata, "LINUX") == 0) | |
10100 | return elfcore_grok_s390_vxrs_low (abfd, note); | |
10101 | else | |
10102 | return TRUE; | |
10103 | ||
10104 | case NT_S390_VXRS_HIGH: | |
10105 | if (note->namesz == 6 | |
10106 | && strcmp (note->namedata, "LINUX") == 0) | |
10107 | return elfcore_grok_s390_vxrs_high (abfd, note); | |
10108 | else | |
10109 | return TRUE; | |
10110 | ||
88ab90e8 AA |
10111 | case NT_S390_GS_CB: |
10112 | if (note->namesz == 6 | |
10113 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10114 | return elfcore_grok_s390_gs_cb (abfd, note); |
88ab90e8 AA |
10115 | else |
10116 | return TRUE; | |
10117 | ||
10118 | case NT_S390_GS_BC: | |
10119 | if (note->namesz == 6 | |
10120 | && strcmp (note->namedata, "LINUX") == 0) | |
8fe09d74 | 10121 | return elfcore_grok_s390_gs_bc (abfd, note); |
88ab90e8 AA |
10122 | else |
10123 | return TRUE; | |
10124 | ||
faa9a424 UW |
10125 | case NT_ARM_VFP: |
10126 | if (note->namesz == 6 | |
10127 | && strcmp (note->namedata, "LINUX") == 0) | |
10128 | return elfcore_grok_arm_vfp (abfd, note); | |
10129 | else | |
10130 | return TRUE; | |
10131 | ||
652451f8 YZ |
10132 | case NT_ARM_TLS: |
10133 | if (note->namesz == 6 | |
10134 | && strcmp (note->namedata, "LINUX") == 0) | |
10135 | return elfcore_grok_aarch_tls (abfd, note); | |
10136 | else | |
10137 | return TRUE; | |
10138 | ||
10139 | case NT_ARM_HW_BREAK: | |
10140 | if (note->namesz == 6 | |
10141 | && strcmp (note->namedata, "LINUX") == 0) | |
10142 | return elfcore_grok_aarch_hw_break (abfd, note); | |
10143 | else | |
10144 | return TRUE; | |
10145 | ||
10146 | case NT_ARM_HW_WATCH: | |
10147 | if (note->namesz == 6 | |
10148 | && strcmp (note->namedata, "LINUX") == 0) | |
10149 | return elfcore_grok_aarch_hw_watch (abfd, note); | |
10150 | else | |
10151 | return TRUE; | |
10152 | ||
ad1cc4e4 AH |
10153 | case NT_ARM_SVE: |
10154 | if (note->namesz == 6 | |
10155 | && strcmp (note->namedata, "LINUX") == 0) | |
10156 | return elfcore_grok_aarch_sve (abfd, note); | |
10157 | else | |
10158 | return TRUE; | |
10159 | ||
e6c3b5bf AH |
10160 | case NT_ARM_PAC_MASK: |
10161 | if (note->namesz == 6 | |
10162 | && strcmp (note->namedata, "LINUX") == 0) | |
10163 | return elfcore_grok_aarch_pauth (abfd, note); | |
10164 | else | |
10165 | return TRUE; | |
10166 | ||
252b5132 RH |
10167 | case NT_PRPSINFO: |
10168 | case NT_PSINFO: | |
bb0082d6 AM |
10169 | if (bed->elf_backend_grok_psinfo) |
10170 | if ((*bed->elf_backend_grok_psinfo) (abfd, note)) | |
b34976b6 | 10171 | return TRUE; |
bb0082d6 | 10172 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
252b5132 | 10173 | return elfcore_grok_psinfo (abfd, note); |
bb0082d6 | 10174 | #else |
b34976b6 | 10175 | return TRUE; |
252b5132 | 10176 | #endif |
3333a7c3 RM |
10177 | |
10178 | case NT_AUXV: | |
10179 | { | |
117ed4f8 AM |
10180 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", |
10181 | SEC_HAS_CONTENTS); | |
3333a7c3 RM |
10182 | |
10183 | if (sect == NULL) | |
10184 | return FALSE; | |
eea6121a | 10185 | sect->size = note->descsz; |
3333a7c3 | 10186 | sect->filepos = note->descpos; |
3333a7c3 RM |
10187 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; |
10188 | ||
10189 | return TRUE; | |
10190 | } | |
9015683b | 10191 | |
451b7c33 TT |
10192 | case NT_FILE: |
10193 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.file", | |
10194 | note); | |
10195 | ||
9015683b TT |
10196 | case NT_SIGINFO: |
10197 | return elfcore_make_note_pseudosection (abfd, ".note.linuxcore.siginfo", | |
10198 | note); | |
5b2c414d | 10199 | |
252b5132 RH |
10200 | } |
10201 | } | |
10202 | ||
718175fa JK |
10203 | static bfd_boolean |
10204 | elfobj_grok_gnu_build_id (bfd *abfd, Elf_Internal_Note *note) | |
10205 | { | |
c74f7d1c | 10206 | struct bfd_build_id* build_id; |
30e8ee25 AM |
10207 | |
10208 | if (note->descsz == 0) | |
10209 | return FALSE; | |
10210 | ||
c74f7d1c JT |
10211 | build_id = bfd_alloc (abfd, sizeof (struct bfd_build_id) - 1 + note->descsz); |
10212 | if (build_id == NULL) | |
718175fa JK |
10213 | return FALSE; |
10214 | ||
c74f7d1c JT |
10215 | build_id->size = note->descsz; |
10216 | memcpy (build_id->data, note->descdata, note->descsz); | |
10217 | abfd->build_id = build_id; | |
718175fa JK |
10218 | |
10219 | return TRUE; | |
10220 | } | |
10221 | ||
10222 | static bfd_boolean | |
10223 | elfobj_grok_gnu_note (bfd *abfd, Elf_Internal_Note *note) | |
10224 | { | |
10225 | switch (note->type) | |
10226 | { | |
10227 | default: | |
10228 | return TRUE; | |
10229 | ||
46bed679 L |
10230 | case NT_GNU_PROPERTY_TYPE_0: |
10231 | return _bfd_elf_parse_gnu_properties (abfd, note); | |
10232 | ||
718175fa JK |
10233 | case NT_GNU_BUILD_ID: |
10234 | return elfobj_grok_gnu_build_id (abfd, note); | |
10235 | } | |
10236 | } | |
10237 | ||
e21e5835 NC |
10238 | static bfd_boolean |
10239 | elfobj_grok_stapsdt_note_1 (bfd *abfd, Elf_Internal_Note *note) | |
10240 | { | |
10241 | struct sdt_note *cur = | |
7a6e0d89 AM |
10242 | (struct sdt_note *) bfd_alloc (abfd, |
10243 | sizeof (struct sdt_note) + note->descsz); | |
e21e5835 NC |
10244 | |
10245 | cur->next = (struct sdt_note *) (elf_tdata (abfd))->sdt_note_head; | |
10246 | cur->size = (bfd_size_type) note->descsz; | |
10247 | memcpy (cur->data, note->descdata, note->descsz); | |
10248 | ||
10249 | elf_tdata (abfd)->sdt_note_head = cur; | |
10250 | ||
10251 | return TRUE; | |
10252 | } | |
10253 | ||
10254 | static bfd_boolean | |
10255 | elfobj_grok_stapsdt_note (bfd *abfd, Elf_Internal_Note *note) | |
10256 | { | |
10257 | switch (note->type) | |
10258 | { | |
10259 | case NT_STAPSDT: | |
10260 | return elfobj_grok_stapsdt_note_1 (abfd, note); | |
10261 | ||
10262 | default: | |
10263 | return TRUE; | |
10264 | } | |
10265 | } | |
10266 | ||
aa1ed4a9 JB |
10267 | static bfd_boolean |
10268 | elfcore_grok_freebsd_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
10269 | { | |
10270 | size_t offset; | |
10271 | ||
b5430a3c | 10272 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10273 | { |
b5430a3c | 10274 | case ELFCLASS32: |
0064d223 JB |
10275 | if (note->descsz < 108) |
10276 | return FALSE; | |
aa1ed4a9 JB |
10277 | break; |
10278 | ||
b5430a3c | 10279 | case ELFCLASS64: |
0064d223 JB |
10280 | if (note->descsz < 120) |
10281 | return FALSE; | |
aa1ed4a9 JB |
10282 | break; |
10283 | ||
10284 | default: | |
10285 | return FALSE; | |
10286 | } | |
10287 | ||
0064d223 JB |
10288 | /* Check for version 1 in pr_version. */ |
10289 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10290 | return FALSE; | |
80a04378 | 10291 | |
0064d223 JB |
10292 | offset = 4; |
10293 | ||
10294 | /* Skip over pr_psinfosz. */ | |
b5430a3c | 10295 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
0064d223 JB |
10296 | offset += 4; |
10297 | else | |
10298 | { | |
10299 | offset += 4; /* Padding before pr_psinfosz. */ | |
10300 | offset += 8; | |
10301 | } | |
10302 | ||
aa1ed4a9 JB |
10303 | /* pr_fname is PRFNAMESZ (16) + 1 bytes in size. */ |
10304 | elf_tdata (abfd)->core->program | |
10305 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 17); | |
10306 | offset += 17; | |
10307 | ||
10308 | /* pr_psargs is PRARGSZ (80) + 1 bytes in size. */ | |
10309 | elf_tdata (abfd)->core->command | |
10310 | = _bfd_elfcore_strndup (abfd, note->descdata + offset, 81); | |
0064d223 JB |
10311 | offset += 81; |
10312 | ||
10313 | /* Padding before pr_pid. */ | |
10314 | offset += 2; | |
10315 | ||
10316 | /* The pr_pid field was added in version "1a". */ | |
10317 | if (note->descsz < offset + 4) | |
10318 | return TRUE; | |
10319 | ||
10320 | elf_tdata (abfd)->core->pid | |
10321 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
aa1ed4a9 JB |
10322 | |
10323 | return TRUE; | |
10324 | } | |
10325 | ||
10326 | static bfd_boolean | |
10327 | elfcore_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
10328 | { | |
10329 | size_t offset; | |
10330 | size_t size; | |
24d3e51b | 10331 | size_t min_size; |
aa1ed4a9 | 10332 | |
24d3e51b NC |
10333 | /* Compute offset of pr_getregsz, skipping over pr_statussz. |
10334 | Also compute minimum size of this note. */ | |
b5430a3c | 10335 | switch (elf_elfheader (abfd)->e_ident[EI_CLASS]) |
aa1ed4a9 | 10336 | { |
b5430a3c | 10337 | case ELFCLASS32: |
24d3e51b NC |
10338 | offset = 4 + 4; |
10339 | min_size = offset + (4 * 2) + 4 + 4 + 4; | |
aa1ed4a9 JB |
10340 | break; |
10341 | ||
b5430a3c | 10342 | case ELFCLASS64: |
24d3e51b NC |
10343 | offset = 4 + 4 + 8; /* Includes padding before pr_statussz. */ |
10344 | min_size = offset + (8 * 2) + 4 + 4 + 4 + 4; | |
aa1ed4a9 JB |
10345 | break; |
10346 | ||
10347 | default: | |
10348 | return FALSE; | |
10349 | } | |
10350 | ||
24d3e51b NC |
10351 | if (note->descsz < min_size) |
10352 | return FALSE; | |
10353 | ||
10354 | /* Check for version 1 in pr_version. */ | |
10355 | if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) | |
10356 | return FALSE; | |
aa1ed4a9 | 10357 | |
24d3e51b NC |
10358 | /* Extract size of pr_reg from pr_gregsetsz. */ |
10359 | /* Skip over pr_gregsetsz and pr_fpregsetsz. */ | |
b5430a3c | 10360 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS32) |
24d3e51b NC |
10361 | { |
10362 | size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10363 | offset += 4 * 2; | |
10364 | } | |
b5430a3c | 10365 | else |
24d3e51b NC |
10366 | { |
10367 | size = bfd_h_get_64 (abfd, (bfd_byte *) note->descdata + offset); | |
10368 | offset += 8 * 2; | |
10369 | } | |
aa1ed4a9 | 10370 | |
24d3e51b | 10371 | /* Skip over pr_osreldate. */ |
aa1ed4a9 JB |
10372 | offset += 4; |
10373 | ||
24d3e51b | 10374 | /* Read signal from pr_cursig. */ |
aa1ed4a9 JB |
10375 | if (elf_tdata (abfd)->core->signal == 0) |
10376 | elf_tdata (abfd)->core->signal | |
10377 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10378 | offset += 4; | |
10379 | ||
24d3e51b | 10380 | /* Read TID from pr_pid. */ |
aa1ed4a9 JB |
10381 | elf_tdata (abfd)->core->lwpid |
10382 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); | |
10383 | offset += 4; | |
10384 | ||
24d3e51b | 10385 | /* Padding before pr_reg. */ |
b5430a3c | 10386 | if (elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) |
aa1ed4a9 JB |
10387 | offset += 4; |
10388 | ||
24d3e51b NC |
10389 | /* Make sure that there is enough data remaining in the note. */ |
10390 | if ((note->descsz - offset) < size) | |
10391 | return FALSE; | |
10392 | ||
aa1ed4a9 JB |
10393 | /* Make a ".reg/999" section and a ".reg" section. */ |
10394 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
10395 | size, note->descpos + offset); | |
10396 | } | |
10397 | ||
10398 | static bfd_boolean | |
10399 | elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10400 | { | |
544c67cd JB |
10401 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10402 | ||
aa1ed4a9 JB |
10403 | switch (note->type) |
10404 | { | |
10405 | case NT_PRSTATUS: | |
544c67cd JB |
10406 | if (bed->elf_backend_grok_freebsd_prstatus) |
10407 | if ((*bed->elf_backend_grok_freebsd_prstatus) (abfd, note)) | |
10408 | return TRUE; | |
aa1ed4a9 JB |
10409 | return elfcore_grok_freebsd_prstatus (abfd, note); |
10410 | ||
10411 | case NT_FPREGSET: | |
10412 | return elfcore_grok_prfpreg (abfd, note); | |
10413 | ||
10414 | case NT_PRPSINFO: | |
10415 | return elfcore_grok_freebsd_psinfo (abfd, note); | |
10416 | ||
10417 | case NT_FREEBSD_THRMISC: | |
10418 | if (note->namesz == 8) | |
10419 | return elfcore_make_note_pseudosection (abfd, ".thrmisc", note); | |
10420 | else | |
10421 | return TRUE; | |
10422 | ||
ddb2bbcf JB |
10423 | case NT_FREEBSD_PROCSTAT_PROC: |
10424 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.proc", | |
10425 | note); | |
10426 | ||
10427 | case NT_FREEBSD_PROCSTAT_FILES: | |
10428 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.files", | |
10429 | note); | |
10430 | ||
10431 | case NT_FREEBSD_PROCSTAT_VMMAP: | |
10432 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.vmmap", | |
10433 | note); | |
10434 | ||
3350c5f5 JB |
10435 | case NT_FREEBSD_PROCSTAT_AUXV: |
10436 | { | |
10437 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
10438 | SEC_HAS_CONTENTS); | |
10439 | ||
10440 | if (sect == NULL) | |
10441 | return FALSE; | |
10442 | sect->size = note->descsz - 4; | |
10443 | sect->filepos = note->descpos + 4; | |
10444 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10445 | ||
10446 | return TRUE; | |
10447 | } | |
10448 | ||
aa1ed4a9 JB |
10449 | case NT_X86_XSTATE: |
10450 | if (note->namesz == 8) | |
10451 | return elfcore_grok_xstatereg (abfd, note); | |
10452 | else | |
10453 | return TRUE; | |
10454 | ||
e6f3b9c3 JB |
10455 | case NT_FREEBSD_PTLWPINFO: |
10456 | return elfcore_make_note_pseudosection (abfd, ".note.freebsdcore.lwpinfo", | |
10457 | note); | |
10458 | ||
6d5be5d6 JB |
10459 | case NT_ARM_VFP: |
10460 | return elfcore_grok_arm_vfp (abfd, note); | |
10461 | ||
aa1ed4a9 JB |
10462 | default: |
10463 | return TRUE; | |
10464 | } | |
10465 | } | |
10466 | ||
b34976b6 | 10467 | static bfd_boolean |
217aa764 | 10468 | elfcore_netbsd_get_lwpid (Elf_Internal_Note *note, int *lwpidp) |
50b2bdb7 AM |
10469 | { |
10470 | char *cp; | |
10471 | ||
10472 | cp = strchr (note->namedata, '@'); | |
10473 | if (cp != NULL) | |
10474 | { | |
d2b64500 | 10475 | *lwpidp = atoi(cp + 1); |
b34976b6 | 10476 | return TRUE; |
50b2bdb7 | 10477 | } |
b34976b6 | 10478 | return FALSE; |
50b2bdb7 AM |
10479 | } |
10480 | ||
b34976b6 | 10481 | static bfd_boolean |
217aa764 | 10482 | elfcore_grok_netbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 | 10483 | { |
80a04378 NC |
10484 | if (note->descsz <= 0x7c + 31) |
10485 | return FALSE; | |
10486 | ||
50b2bdb7 | 10487 | /* Signal number at offset 0x08. */ |
228e534f | 10488 | elf_tdata (abfd)->core->signal |
50b2bdb7 AM |
10489 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10490 | ||
10491 | /* Process ID at offset 0x50. */ | |
228e534f | 10492 | elf_tdata (abfd)->core->pid |
50b2bdb7 AM |
10493 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50); |
10494 | ||
10495 | /* Command name at 0x7c (max 32 bytes, including nul). */ | |
228e534f | 10496 | elf_tdata (abfd)->core->command |
50b2bdb7 AM |
10497 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31); |
10498 | ||
7720ba9f MK |
10499 | return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo", |
10500 | note); | |
50b2bdb7 AM |
10501 | } |
10502 | ||
b34976b6 | 10503 | static bfd_boolean |
217aa764 | 10504 | elfcore_grok_netbsd_note (bfd *abfd, Elf_Internal_Note *note) |
50b2bdb7 AM |
10505 | { |
10506 | int lwp; | |
10507 | ||
10508 | if (elfcore_netbsd_get_lwpid (note, &lwp)) | |
228e534f | 10509 | elf_tdata (abfd)->core->lwpid = lwp; |
50b2bdb7 | 10510 | |
b4db1224 | 10511 | if (note->type == NT_NETBSDCORE_PROCINFO) |
50b2bdb7 AM |
10512 | { |
10513 | /* NetBSD-specific core "procinfo". Note that we expect to | |
08a40648 AM |
10514 | find this note before any of the others, which is fine, |
10515 | since the kernel writes this note out first when it | |
10516 | creates a core file. */ | |
47d9a591 | 10517 | |
50b2bdb7 AM |
10518 | return elfcore_grok_netbsd_procinfo (abfd, note); |
10519 | } | |
10520 | ||
b4db1224 JT |
10521 | /* As of Jan 2002 there are no other machine-independent notes |
10522 | defined for NetBSD core files. If the note type is less | |
10523 | than the start of the machine-dependent note types, we don't | |
10524 | understand it. */ | |
47d9a591 | 10525 | |
b4db1224 | 10526 | if (note->type < NT_NETBSDCORE_FIRSTMACH) |
b34976b6 | 10527 | return TRUE; |
50b2bdb7 AM |
10528 | |
10529 | ||
10530 | switch (bfd_get_arch (abfd)) | |
10531 | { | |
08a40648 AM |
10532 | /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and |
10533 | PT_GETFPREGS == mach+2. */ | |
50b2bdb7 AM |
10534 | |
10535 | case bfd_arch_alpha: | |
10536 | case bfd_arch_sparc: | |
10537 | switch (note->type) | |
08a40648 AM |
10538 | { |
10539 | case NT_NETBSDCORE_FIRSTMACH+0: | |
10540 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10541 | |
08a40648 AM |
10542 | case NT_NETBSDCORE_FIRSTMACH+2: |
10543 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10544 | |
08a40648 AM |
10545 | default: |
10546 | return TRUE; | |
10547 | } | |
50b2bdb7 | 10548 | |
08a40648 AM |
10549 | /* On all other arch's, PT_GETREGS == mach+1 and |
10550 | PT_GETFPREGS == mach+3. */ | |
50b2bdb7 AM |
10551 | |
10552 | default: | |
10553 | switch (note->type) | |
08a40648 AM |
10554 | { |
10555 | case NT_NETBSDCORE_FIRSTMACH+1: | |
10556 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
50b2bdb7 | 10557 | |
08a40648 AM |
10558 | case NT_NETBSDCORE_FIRSTMACH+3: |
10559 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
50b2bdb7 | 10560 | |
08a40648 AM |
10561 | default: |
10562 | return TRUE; | |
10563 | } | |
50b2bdb7 AM |
10564 | } |
10565 | /* NOTREACHED */ | |
10566 | } | |
10567 | ||
67cc5033 MK |
10568 | static bfd_boolean |
10569 | elfcore_grok_openbsd_procinfo (bfd *abfd, Elf_Internal_Note *note) | |
10570 | { | |
80a04378 NC |
10571 | if (note->descsz <= 0x48 + 31) |
10572 | return FALSE; | |
10573 | ||
67cc5033 | 10574 | /* Signal number at offset 0x08. */ |
228e534f | 10575 | elf_tdata (abfd)->core->signal |
67cc5033 MK |
10576 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08); |
10577 | ||
10578 | /* Process ID at offset 0x20. */ | |
228e534f | 10579 | elf_tdata (abfd)->core->pid |
67cc5033 MK |
10580 | = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x20); |
10581 | ||
10582 | /* Command name at 0x48 (max 32 bytes, including nul). */ | |
228e534f | 10583 | elf_tdata (abfd)->core->command |
67cc5033 MK |
10584 | = _bfd_elfcore_strndup (abfd, note->descdata + 0x48, 31); |
10585 | ||
10586 | return TRUE; | |
10587 | } | |
10588 | ||
10589 | static bfd_boolean | |
10590 | elfcore_grok_openbsd_note (bfd *abfd, Elf_Internal_Note *note) | |
10591 | { | |
10592 | if (note->type == NT_OPENBSD_PROCINFO) | |
10593 | return elfcore_grok_openbsd_procinfo (abfd, note); | |
10594 | ||
10595 | if (note->type == NT_OPENBSD_REGS) | |
10596 | return elfcore_make_note_pseudosection (abfd, ".reg", note); | |
10597 | ||
10598 | if (note->type == NT_OPENBSD_FPREGS) | |
10599 | return elfcore_make_note_pseudosection (abfd, ".reg2", note); | |
10600 | ||
10601 | if (note->type == NT_OPENBSD_XFPREGS) | |
10602 | return elfcore_make_note_pseudosection (abfd, ".reg-xfp", note); | |
10603 | ||
10604 | if (note->type == NT_OPENBSD_AUXV) | |
10605 | { | |
10606 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".auxv", | |
10607 | SEC_HAS_CONTENTS); | |
10608 | ||
10609 | if (sect == NULL) | |
10610 | return FALSE; | |
10611 | sect->size = note->descsz; | |
10612 | sect->filepos = note->descpos; | |
10613 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10614 | ||
10615 | return TRUE; | |
10616 | } | |
10617 | ||
10618 | if (note->type == NT_OPENBSD_WCOOKIE) | |
10619 | { | |
10620 | asection *sect = bfd_make_section_anyway_with_flags (abfd, ".wcookie", | |
10621 | SEC_HAS_CONTENTS); | |
10622 | ||
10623 | if (sect == NULL) | |
10624 | return FALSE; | |
10625 | sect->size = note->descsz; | |
10626 | sect->filepos = note->descpos; | |
10627 | sect->alignment_power = 1 + bfd_get_arch_size (abfd) / 32; | |
10628 | ||
10629 | return TRUE; | |
10630 | } | |
10631 | ||
10632 | return TRUE; | |
10633 | } | |
10634 | ||
07c6e936 | 10635 | static bfd_boolean |
d3fd4074 | 10636 | elfcore_grok_nto_status (bfd *abfd, Elf_Internal_Note *note, long *tid) |
07c6e936 NC |
10637 | { |
10638 | void *ddata = note->descdata; | |
10639 | char buf[100]; | |
10640 | char *name; | |
10641 | asection *sect; | |
f8843e87 AM |
10642 | short sig; |
10643 | unsigned flags; | |
07c6e936 | 10644 | |
80a04378 NC |
10645 | if (note->descsz < 16) |
10646 | return FALSE; | |
10647 | ||
07c6e936 | 10648 | /* nto_procfs_status 'pid' field is at offset 0. */ |
228e534f | 10649 | elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, (bfd_byte *) ddata); |
07c6e936 | 10650 | |
f8843e87 AM |
10651 | /* nto_procfs_status 'tid' field is at offset 4. Pass it back. */ |
10652 | *tid = bfd_get_32 (abfd, (bfd_byte *) ddata + 4); | |
10653 | ||
10654 | /* nto_procfs_status 'flags' field is at offset 8. */ | |
10655 | flags = bfd_get_32 (abfd, (bfd_byte *) ddata + 8); | |
07c6e936 NC |
10656 | |
10657 | /* nto_procfs_status 'what' field is at offset 14. */ | |
f8843e87 AM |
10658 | if ((sig = bfd_get_16 (abfd, (bfd_byte *) ddata + 14)) > 0) |
10659 | { | |
228e534f AM |
10660 | elf_tdata (abfd)->core->signal = sig; |
10661 | elf_tdata (abfd)->core->lwpid = *tid; | |
f8843e87 | 10662 | } |
07c6e936 | 10663 | |
f8843e87 AM |
10664 | /* _DEBUG_FLAG_CURTID (current thread) is 0x80. Some cores |
10665 | do not come from signals so we make sure we set the current | |
10666 | thread just in case. */ | |
10667 | if (flags & 0x00000080) | |
228e534f | 10668 | elf_tdata (abfd)->core->lwpid = *tid; |
07c6e936 NC |
10669 | |
10670 | /* Make a ".qnx_core_status/%d" section. */ | |
d3fd4074 | 10671 | sprintf (buf, ".qnx_core_status/%ld", *tid); |
07c6e936 | 10672 | |
a50b1753 | 10673 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10674 | if (name == NULL) |
10675 | return FALSE; | |
10676 | strcpy (name, buf); | |
10677 | ||
117ed4f8 | 10678 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10679 | if (sect == NULL) |
10680 | return FALSE; | |
10681 | ||
07d6d2b8 AM |
10682 | sect->size = note->descsz; |
10683 | sect->filepos = note->descpos; | |
07c6e936 NC |
10684 | sect->alignment_power = 2; |
10685 | ||
10686 | return (elfcore_maybe_make_sect (abfd, ".qnx_core_status", sect)); | |
10687 | } | |
10688 | ||
10689 | static bfd_boolean | |
d69f560c KW |
10690 | elfcore_grok_nto_regs (bfd *abfd, |
10691 | Elf_Internal_Note *note, | |
d3fd4074 | 10692 | long tid, |
d69f560c | 10693 | char *base) |
07c6e936 NC |
10694 | { |
10695 | char buf[100]; | |
10696 | char *name; | |
10697 | asection *sect; | |
10698 | ||
d69f560c | 10699 | /* Make a "(base)/%d" section. */ |
d3fd4074 | 10700 | sprintf (buf, "%s/%ld", base, tid); |
07c6e936 | 10701 | |
a50b1753 | 10702 | name = (char *) bfd_alloc (abfd, strlen (buf) + 1); |
07c6e936 NC |
10703 | if (name == NULL) |
10704 | return FALSE; | |
10705 | strcpy (name, buf); | |
10706 | ||
117ed4f8 | 10707 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); |
07c6e936 NC |
10708 | if (sect == NULL) |
10709 | return FALSE; | |
10710 | ||
07d6d2b8 AM |
10711 | sect->size = note->descsz; |
10712 | sect->filepos = note->descpos; | |
07c6e936 NC |
10713 | sect->alignment_power = 2; |
10714 | ||
f8843e87 | 10715 | /* This is the current thread. */ |
228e534f | 10716 | if (elf_tdata (abfd)->core->lwpid == tid) |
d69f560c | 10717 | return elfcore_maybe_make_sect (abfd, base, sect); |
f8843e87 AM |
10718 | |
10719 | return TRUE; | |
07c6e936 NC |
10720 | } |
10721 | ||
10722 | #define BFD_QNT_CORE_INFO 7 | |
10723 | #define BFD_QNT_CORE_STATUS 8 | |
10724 | #define BFD_QNT_CORE_GREG 9 | |
10725 | #define BFD_QNT_CORE_FPREG 10 | |
10726 | ||
10727 | static bfd_boolean | |
217aa764 | 10728 | elfcore_grok_nto_note (bfd *abfd, Elf_Internal_Note *note) |
07c6e936 NC |
10729 | { |
10730 | /* Every GREG section has a STATUS section before it. Store the | |
811072d8 | 10731 | tid from the previous call to pass down to the next gregs |
07c6e936 | 10732 | function. */ |
d3fd4074 | 10733 | static long tid = 1; |
07c6e936 NC |
10734 | |
10735 | switch (note->type) | |
10736 | { | |
d69f560c KW |
10737 | case BFD_QNT_CORE_INFO: |
10738 | return elfcore_make_note_pseudosection (abfd, ".qnx_core_info", note); | |
10739 | case BFD_QNT_CORE_STATUS: | |
10740 | return elfcore_grok_nto_status (abfd, note, &tid); | |
10741 | case BFD_QNT_CORE_GREG: | |
10742 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg"); | |
10743 | case BFD_QNT_CORE_FPREG: | |
10744 | return elfcore_grok_nto_regs (abfd, note, tid, ".reg2"); | |
10745 | default: | |
10746 | return TRUE; | |
07c6e936 NC |
10747 | } |
10748 | } | |
10749 | ||
b15fa79e AM |
10750 | static bfd_boolean |
10751 | elfcore_grok_spu_note (bfd *abfd, Elf_Internal_Note *note) | |
10752 | { | |
10753 | char *name; | |
10754 | asection *sect; | |
10755 | size_t len; | |
10756 | ||
10757 | /* Use note name as section name. */ | |
10758 | len = note->namesz; | |
a50b1753 | 10759 | name = (char *) bfd_alloc (abfd, len); |
b15fa79e AM |
10760 | if (name == NULL) |
10761 | return FALSE; | |
10762 | memcpy (name, note->namedata, len); | |
10763 | name[len - 1] = '\0'; | |
10764 | ||
10765 | sect = bfd_make_section_anyway_with_flags (abfd, name, SEC_HAS_CONTENTS); | |
10766 | if (sect == NULL) | |
10767 | return FALSE; | |
10768 | ||
07d6d2b8 AM |
10769 | sect->size = note->descsz; |
10770 | sect->filepos = note->descpos; | |
b15fa79e AM |
10771 | sect->alignment_power = 1; |
10772 | ||
10773 | return TRUE; | |
10774 | } | |
10775 | ||
7c76fa91 MS |
10776 | /* Function: elfcore_write_note |
10777 | ||
47d9a591 | 10778 | Inputs: |
a39f3346 | 10779 | buffer to hold note, and current size of buffer |
7c76fa91 MS |
10780 | name of note |
10781 | type of note | |
10782 | data for note | |
10783 | size of data for note | |
10784 | ||
a39f3346 AM |
10785 | Writes note to end of buffer. ELF64 notes are written exactly as |
10786 | for ELF32, despite the current (as of 2006) ELF gabi specifying | |
10787 | that they ought to have 8-byte namesz and descsz field, and have | |
10788 | 8-byte alignment. Other writers, eg. Linux kernel, do the same. | |
10789 | ||
7c76fa91 | 10790 | Return: |
a39f3346 | 10791 | Pointer to realloc'd buffer, *BUFSIZ updated. */ |
7c76fa91 MS |
10792 | |
10793 | char * | |
a39f3346 | 10794 | elfcore_write_note (bfd *abfd, |
217aa764 | 10795 | char *buf, |
a39f3346 | 10796 | int *bufsiz, |
217aa764 | 10797 | const char *name, |
a39f3346 | 10798 | int type, |
217aa764 | 10799 | const void *input, |
a39f3346 | 10800 | int size) |
7c76fa91 MS |
10801 | { |
10802 | Elf_External_Note *xnp; | |
d4c88bbb | 10803 | size_t namesz; |
d4c88bbb | 10804 | size_t newspace; |
a39f3346 | 10805 | char *dest; |
7c76fa91 | 10806 | |
d4c88bbb | 10807 | namesz = 0; |
d4c88bbb | 10808 | if (name != NULL) |
a39f3346 | 10809 | namesz = strlen (name) + 1; |
d4c88bbb | 10810 | |
a39f3346 | 10811 | newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4); |
d4c88bbb | 10812 | |
a50b1753 | 10813 | buf = (char *) realloc (buf, *bufsiz + newspace); |
14b1c01e AM |
10814 | if (buf == NULL) |
10815 | return buf; | |
a39f3346 | 10816 | dest = buf + *bufsiz; |
7c76fa91 MS |
10817 | *bufsiz += newspace; |
10818 | xnp = (Elf_External_Note *) dest; | |
10819 | H_PUT_32 (abfd, namesz, xnp->namesz); | |
10820 | H_PUT_32 (abfd, size, xnp->descsz); | |
10821 | H_PUT_32 (abfd, type, xnp->type); | |
d4c88bbb AM |
10822 | dest = xnp->name; |
10823 | if (name != NULL) | |
10824 | { | |
10825 | memcpy (dest, name, namesz); | |
10826 | dest += namesz; | |
a39f3346 | 10827 | while (namesz & 3) |
d4c88bbb AM |
10828 | { |
10829 | *dest++ = '\0'; | |
a39f3346 | 10830 | ++namesz; |
d4c88bbb AM |
10831 | } |
10832 | } | |
10833 | memcpy (dest, input, size); | |
a39f3346 AM |
10834 | dest += size; |
10835 | while (size & 3) | |
10836 | { | |
10837 | *dest++ = '\0'; | |
10838 | ++size; | |
10839 | } | |
10840 | return buf; | |
7c76fa91 MS |
10841 | } |
10842 | ||
602f1657 AM |
10843 | /* gcc-8 warns (*) on all the strncpy calls in this function about |
10844 | possible string truncation. The "truncation" is not a bug. We | |
10845 | have an external representation of structs with fields that are not | |
10846 | necessarily NULL terminated and corresponding internal | |
10847 | representation fields that are one larger so that they can always | |
10848 | be NULL terminated. | |
10849 | gcc versions between 4.2 and 4.6 do not allow pragma control of | |
10850 | diagnostics inside functions, giving a hard error if you try to use | |
10851 | the finer control available with later versions. | |
10852 | gcc prior to 4.2 warns about diagnostic push and pop. | |
10853 | gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown, | |
10854 | unless you also add #pragma GCC diagnostic ignored "-Wpragma". | |
10855 | (*) Depending on your system header files! */ | |
d99b4b92 | 10856 | #if GCC_VERSION >= 8000 |
602f1657 AM |
10857 | # pragma GCC diagnostic push |
10858 | # pragma GCC diagnostic ignored "-Wstringop-truncation" | |
d99b4b92 | 10859 | #endif |
7c76fa91 | 10860 | char * |
217aa764 AM |
10861 | elfcore_write_prpsinfo (bfd *abfd, |
10862 | char *buf, | |
10863 | int *bufsiz, | |
10864 | const char *fname, | |
10865 | const char *psargs) | |
7c76fa91 | 10866 | { |
183e98be AM |
10867 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
10868 | ||
10869 | if (bed->elf_backend_write_core_note != NULL) | |
10870 | { | |
10871 | char *ret; | |
10872 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10873 | NT_PRPSINFO, fname, psargs); | |
10874 | if (ret != NULL) | |
10875 | return ret; | |
10876 | } | |
7c76fa91 | 10877 | |
1f20dca5 | 10878 | #if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) |
602f1657 | 10879 | # if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T) |
183e98be AM |
10880 | if (bed->s->elfclass == ELFCLASS32) |
10881 | { | |
602f1657 | 10882 | # if defined (HAVE_PSINFO32_T) |
183e98be AM |
10883 | psinfo32_t data; |
10884 | int note_type = NT_PSINFO; | |
602f1657 | 10885 | # else |
183e98be AM |
10886 | prpsinfo32_t data; |
10887 | int note_type = NT_PRPSINFO; | |
602f1657 | 10888 | # endif |
183e98be AM |
10889 | |
10890 | memset (&data, 0, sizeof (data)); | |
10891 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10892 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10893 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10894 | "CORE", note_type, &data, sizeof (data)); |
183e98be AM |
10895 | } |
10896 | else | |
602f1657 | 10897 | # endif |
183e98be | 10898 | { |
602f1657 | 10899 | # if defined (HAVE_PSINFO_T) |
183e98be AM |
10900 | psinfo_t data; |
10901 | int note_type = NT_PSINFO; | |
602f1657 | 10902 | # else |
183e98be AM |
10903 | prpsinfo_t data; |
10904 | int note_type = NT_PRPSINFO; | |
602f1657 | 10905 | # endif |
7c76fa91 | 10906 | |
183e98be AM |
10907 | memset (&data, 0, sizeof (data)); |
10908 | strncpy (data.pr_fname, fname, sizeof (data.pr_fname)); | |
10909 | strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs)); | |
10910 | return elfcore_write_note (abfd, buf, bufsiz, | |
1f20dca5 | 10911 | "CORE", note_type, &data, sizeof (data)); |
183e98be | 10912 | } |
7c76fa91 MS |
10913 | #endif /* PSINFO_T or PRPSINFO_T */ |
10914 | ||
1f20dca5 UW |
10915 | free (buf); |
10916 | return NULL; | |
10917 | } | |
d99b4b92 | 10918 | #if GCC_VERSION >= 8000 |
602f1657 | 10919 | # pragma GCC diagnostic pop |
d99b4b92 | 10920 | #endif |
1f20dca5 | 10921 | |
70a38d42 SDJ |
10922 | char * |
10923 | elfcore_write_linux_prpsinfo32 | |
10924 | (bfd *abfd, char *buf, int *bufsiz, | |
10925 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
10926 | { | |
a2f63b2e MR |
10927 | if (get_elf_backend_data (abfd)->linux_prpsinfo32_ugid16) |
10928 | { | |
10929 | struct elf_external_linux_prpsinfo32_ugid16 data; | |
10930 | ||
10931 | swap_linux_prpsinfo32_ugid16_out (abfd, prpsinfo, &data); | |
10932 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
10933 | &data, sizeof (data)); | |
10934 | } | |
10935 | else | |
10936 | { | |
10937 | struct elf_external_linux_prpsinfo32_ugid32 data; | |
70a38d42 | 10938 | |
a2f63b2e MR |
10939 | swap_linux_prpsinfo32_ugid32_out (abfd, prpsinfo, &data); |
10940 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", NT_PRPSINFO, | |
10941 | &data, sizeof (data)); | |
10942 | } | |
70a38d42 SDJ |
10943 | } |
10944 | ||
10945 | char * | |
10946 | elfcore_write_linux_prpsinfo64 | |
10947 | (bfd *abfd, char *buf, int *bufsiz, | |
10948 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
10949 | { | |
3c9a7b0d MR |
10950 | if (get_elf_backend_data (abfd)->linux_prpsinfo64_ugid16) |
10951 | { | |
10952 | struct elf_external_linux_prpsinfo64_ugid16 data; | |
10953 | ||
10954 | swap_linux_prpsinfo64_ugid16_out (abfd, prpsinfo, &data); | |
10955 | return elfcore_write_note (abfd, buf, bufsiz, | |
10956 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
10957 | } | |
10958 | else | |
10959 | { | |
10960 | struct elf_external_linux_prpsinfo64_ugid32 data; | |
70a38d42 | 10961 | |
3c9a7b0d MR |
10962 | swap_linux_prpsinfo64_ugid32_out (abfd, prpsinfo, &data); |
10963 | return elfcore_write_note (abfd, buf, bufsiz, | |
10964 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
10965 | } | |
70a38d42 SDJ |
10966 | } |
10967 | ||
7c76fa91 | 10968 | char * |
217aa764 AM |
10969 | elfcore_write_prstatus (bfd *abfd, |
10970 | char *buf, | |
10971 | int *bufsiz, | |
10972 | long pid, | |
10973 | int cursig, | |
10974 | const void *gregs) | |
7c76fa91 | 10975 | { |
183e98be | 10976 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
7c76fa91 | 10977 | |
183e98be AM |
10978 | if (bed->elf_backend_write_core_note != NULL) |
10979 | { | |
10980 | char *ret; | |
10981 | ret = (*bed->elf_backend_write_core_note) (abfd, buf, bufsiz, | |
10982 | NT_PRSTATUS, | |
10983 | pid, cursig, gregs); | |
10984 | if (ret != NULL) | |
10985 | return ret; | |
10986 | } | |
10987 | ||
1f20dca5 | 10988 | #if defined (HAVE_PRSTATUS_T) |
183e98be AM |
10989 | #if defined (HAVE_PRSTATUS32_T) |
10990 | if (bed->s->elfclass == ELFCLASS32) | |
10991 | { | |
10992 | prstatus32_t prstat; | |
10993 | ||
10994 | memset (&prstat, 0, sizeof (prstat)); | |
10995 | prstat.pr_pid = pid; | |
10996 | prstat.pr_cursig = cursig; | |
10997 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 10998 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
10999 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11000 | } | |
11001 | else | |
11002 | #endif | |
11003 | { | |
11004 | prstatus_t prstat; | |
11005 | ||
11006 | memset (&prstat, 0, sizeof (prstat)); | |
11007 | prstat.pr_pid = pid; | |
11008 | prstat.pr_cursig = cursig; | |
11009 | memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg)); | |
1f20dca5 | 11010 | return elfcore_write_note (abfd, buf, bufsiz, "CORE", |
183e98be AM |
11011 | NT_PRSTATUS, &prstat, sizeof (prstat)); |
11012 | } | |
7c76fa91 MS |
11013 | #endif /* HAVE_PRSTATUS_T */ |
11014 | ||
1f20dca5 UW |
11015 | free (buf); |
11016 | return NULL; | |
11017 | } | |
11018 | ||
51316059 MS |
11019 | #if defined (HAVE_LWPSTATUS_T) |
11020 | char * | |
217aa764 AM |
11021 | elfcore_write_lwpstatus (bfd *abfd, |
11022 | char *buf, | |
11023 | int *bufsiz, | |
11024 | long pid, | |
11025 | int cursig, | |
11026 | const void *gregs) | |
51316059 MS |
11027 | { |
11028 | lwpstatus_t lwpstat; | |
183e98be | 11029 | const char *note_name = "CORE"; |
51316059 MS |
11030 | |
11031 | memset (&lwpstat, 0, sizeof (lwpstat)); | |
11032 | lwpstat.pr_lwpid = pid >> 16; | |
11033 | lwpstat.pr_cursig = cursig; | |
11034 | #if defined (HAVE_LWPSTATUS_T_PR_REG) | |
d1e8523e | 11035 | memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); |
51316059 MS |
11036 | #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) |
11037 | #if !defined(gregs) | |
11038 | memcpy (lwpstat.pr_context.uc_mcontext.gregs, | |
11039 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs)); | |
11040 | #else | |
11041 | memcpy (lwpstat.pr_context.uc_mcontext.__gregs, | |
11042 | gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs)); | |
11043 | #endif | |
11044 | #endif | |
47d9a591 | 11045 | return elfcore_write_note (abfd, buf, bufsiz, note_name, |
51316059 MS |
11046 | NT_LWPSTATUS, &lwpstat, sizeof (lwpstat)); |
11047 | } | |
11048 | #endif /* HAVE_LWPSTATUS_T */ | |
11049 | ||
7c76fa91 MS |
11050 | #if defined (HAVE_PSTATUS_T) |
11051 | char * | |
217aa764 AM |
11052 | elfcore_write_pstatus (bfd *abfd, |
11053 | char *buf, | |
11054 | int *bufsiz, | |
11055 | long pid, | |
6c10990d NC |
11056 | int cursig ATTRIBUTE_UNUSED, |
11057 | const void *gregs ATTRIBUTE_UNUSED) | |
7c76fa91 | 11058 | { |
183e98be AM |
11059 | const char *note_name = "CORE"; |
11060 | #if defined (HAVE_PSTATUS32_T) | |
11061 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
7c76fa91 | 11062 | |
183e98be AM |
11063 | if (bed->s->elfclass == ELFCLASS32) |
11064 | { | |
11065 | pstatus32_t pstat; | |
11066 | ||
11067 | memset (&pstat, 0, sizeof (pstat)); | |
11068 | pstat.pr_pid = pid & 0xffff; | |
11069 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11070 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11071 | return buf; | |
11072 | } | |
11073 | else | |
11074 | #endif | |
11075 | { | |
11076 | pstatus_t pstat; | |
11077 | ||
11078 | memset (&pstat, 0, sizeof (pstat)); | |
11079 | pstat.pr_pid = pid & 0xffff; | |
11080 | buf = elfcore_write_note (abfd, buf, bufsiz, note_name, | |
11081 | NT_PSTATUS, &pstat, sizeof (pstat)); | |
11082 | return buf; | |
11083 | } | |
7c76fa91 MS |
11084 | } |
11085 | #endif /* HAVE_PSTATUS_T */ | |
11086 | ||
11087 | char * | |
217aa764 AM |
11088 | elfcore_write_prfpreg (bfd *abfd, |
11089 | char *buf, | |
11090 | int *bufsiz, | |
11091 | const void *fpregs, | |
11092 | int size) | |
7c76fa91 | 11093 | { |
183e98be | 11094 | const char *note_name = "CORE"; |
47d9a591 | 11095 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11096 | note_name, NT_FPREGSET, fpregs, size); |
11097 | } | |
11098 | ||
11099 | char * | |
217aa764 AM |
11100 | elfcore_write_prxfpreg (bfd *abfd, |
11101 | char *buf, | |
11102 | int *bufsiz, | |
11103 | const void *xfpregs, | |
11104 | int size) | |
7c76fa91 MS |
11105 | { |
11106 | char *note_name = "LINUX"; | |
47d9a591 | 11107 | return elfcore_write_note (abfd, buf, bufsiz, |
7c76fa91 MS |
11108 | note_name, NT_PRXFPREG, xfpregs, size); |
11109 | } | |
11110 | ||
4339cae0 L |
11111 | char * |
11112 | elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, | |
11113 | const void *xfpregs, int size) | |
11114 | { | |
97de3545 JB |
11115 | char *note_name; |
11116 | if (get_elf_backend_data (abfd)->elf_osabi == ELFOSABI_FREEBSD) | |
11117 | note_name = "FreeBSD"; | |
11118 | else | |
11119 | note_name = "LINUX"; | |
4339cae0 L |
11120 | return elfcore_write_note (abfd, buf, bufsiz, |
11121 | note_name, NT_X86_XSTATE, xfpregs, size); | |
11122 | } | |
11123 | ||
97753bd5 AM |
11124 | char * |
11125 | elfcore_write_ppc_vmx (bfd *abfd, | |
11126 | char *buf, | |
11127 | int *bufsiz, | |
11128 | const void *ppc_vmx, | |
11129 | int size) | |
11130 | { | |
11131 | char *note_name = "LINUX"; | |
11132 | return elfcore_write_note (abfd, buf, bufsiz, | |
11133 | note_name, NT_PPC_VMX, ppc_vmx, size); | |
11134 | } | |
11135 | ||
89eeb0bc LM |
11136 | char * |
11137 | elfcore_write_ppc_vsx (bfd *abfd, | |
07d6d2b8 AM |
11138 | char *buf, |
11139 | int *bufsiz, | |
11140 | const void *ppc_vsx, | |
11141 | int size) | |
89eeb0bc LM |
11142 | { |
11143 | char *note_name = "LINUX"; | |
11144 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11145 | note_name, NT_PPC_VSX, ppc_vsx, size); |
89eeb0bc LM |
11146 | } |
11147 | ||
cb2366c1 EBM |
11148 | char * |
11149 | elfcore_write_ppc_tar (bfd *abfd, | |
4b24dd1a AM |
11150 | char *buf, |
11151 | int *bufsiz, | |
11152 | const void *ppc_tar, | |
11153 | int size) | |
cb2366c1 EBM |
11154 | { |
11155 | char *note_name = "LINUX"; | |
11156 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11157 | note_name, NT_PPC_TAR, ppc_tar, size); |
cb2366c1 EBM |
11158 | } |
11159 | ||
11160 | char * | |
11161 | elfcore_write_ppc_ppr (bfd *abfd, | |
4b24dd1a AM |
11162 | char *buf, |
11163 | int *bufsiz, | |
11164 | const void *ppc_ppr, | |
11165 | int size) | |
cb2366c1 EBM |
11166 | { |
11167 | char *note_name = "LINUX"; | |
11168 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11169 | note_name, NT_PPC_PPR, ppc_ppr, size); |
cb2366c1 EBM |
11170 | } |
11171 | ||
11172 | char * | |
11173 | elfcore_write_ppc_dscr (bfd *abfd, | |
4b24dd1a AM |
11174 | char *buf, |
11175 | int *bufsiz, | |
11176 | const void *ppc_dscr, | |
11177 | int size) | |
cb2366c1 EBM |
11178 | { |
11179 | char *note_name = "LINUX"; | |
11180 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11181 | note_name, NT_PPC_DSCR, ppc_dscr, size); |
cb2366c1 EBM |
11182 | } |
11183 | ||
11184 | char * | |
11185 | elfcore_write_ppc_ebb (bfd *abfd, | |
4b24dd1a AM |
11186 | char *buf, |
11187 | int *bufsiz, | |
11188 | const void *ppc_ebb, | |
11189 | int size) | |
cb2366c1 EBM |
11190 | { |
11191 | char *note_name = "LINUX"; | |
11192 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11193 | note_name, NT_PPC_EBB, ppc_ebb, size); |
cb2366c1 EBM |
11194 | } |
11195 | ||
11196 | char * | |
11197 | elfcore_write_ppc_pmu (bfd *abfd, | |
4b24dd1a AM |
11198 | char *buf, |
11199 | int *bufsiz, | |
11200 | const void *ppc_pmu, | |
11201 | int size) | |
cb2366c1 EBM |
11202 | { |
11203 | char *note_name = "LINUX"; | |
11204 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11205 | note_name, NT_PPC_PMU, ppc_pmu, size); |
cb2366c1 EBM |
11206 | } |
11207 | ||
11208 | char * | |
11209 | elfcore_write_ppc_tm_cgpr (bfd *abfd, | |
4b24dd1a AM |
11210 | char *buf, |
11211 | int *bufsiz, | |
11212 | const void *ppc_tm_cgpr, | |
11213 | int size) | |
cb2366c1 EBM |
11214 | { |
11215 | char *note_name = "LINUX"; | |
11216 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11217 | note_name, NT_PPC_TM_CGPR, ppc_tm_cgpr, size); |
cb2366c1 EBM |
11218 | } |
11219 | ||
11220 | char * | |
11221 | elfcore_write_ppc_tm_cfpr (bfd *abfd, | |
4b24dd1a AM |
11222 | char *buf, |
11223 | int *bufsiz, | |
11224 | const void *ppc_tm_cfpr, | |
11225 | int size) | |
cb2366c1 EBM |
11226 | { |
11227 | char *note_name = "LINUX"; | |
11228 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11229 | note_name, NT_PPC_TM_CFPR, ppc_tm_cfpr, size); |
cb2366c1 EBM |
11230 | } |
11231 | ||
11232 | char * | |
11233 | elfcore_write_ppc_tm_cvmx (bfd *abfd, | |
4b24dd1a AM |
11234 | char *buf, |
11235 | int *bufsiz, | |
11236 | const void *ppc_tm_cvmx, | |
11237 | int size) | |
cb2366c1 EBM |
11238 | { |
11239 | char *note_name = "LINUX"; | |
11240 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11241 | note_name, NT_PPC_TM_CVMX, ppc_tm_cvmx, size); |
cb2366c1 EBM |
11242 | } |
11243 | ||
11244 | char * | |
11245 | elfcore_write_ppc_tm_cvsx (bfd *abfd, | |
4b24dd1a AM |
11246 | char *buf, |
11247 | int *bufsiz, | |
11248 | const void *ppc_tm_cvsx, | |
11249 | int size) | |
cb2366c1 EBM |
11250 | { |
11251 | char *note_name = "LINUX"; | |
11252 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11253 | note_name, NT_PPC_TM_CVSX, ppc_tm_cvsx, size); |
cb2366c1 EBM |
11254 | } |
11255 | ||
11256 | char * | |
11257 | elfcore_write_ppc_tm_spr (bfd *abfd, | |
4b24dd1a AM |
11258 | char *buf, |
11259 | int *bufsiz, | |
11260 | const void *ppc_tm_spr, | |
11261 | int size) | |
cb2366c1 EBM |
11262 | { |
11263 | char *note_name = "LINUX"; | |
11264 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11265 | note_name, NT_PPC_TM_SPR, ppc_tm_spr, size); |
cb2366c1 EBM |
11266 | } |
11267 | ||
11268 | char * | |
11269 | elfcore_write_ppc_tm_ctar (bfd *abfd, | |
4b24dd1a AM |
11270 | char *buf, |
11271 | int *bufsiz, | |
11272 | const void *ppc_tm_ctar, | |
11273 | int size) | |
cb2366c1 EBM |
11274 | { |
11275 | char *note_name = "LINUX"; | |
11276 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11277 | note_name, NT_PPC_TM_CTAR, ppc_tm_ctar, size); |
cb2366c1 EBM |
11278 | } |
11279 | ||
11280 | char * | |
11281 | elfcore_write_ppc_tm_cppr (bfd *abfd, | |
4b24dd1a AM |
11282 | char *buf, |
11283 | int *bufsiz, | |
11284 | const void *ppc_tm_cppr, | |
11285 | int size) | |
cb2366c1 EBM |
11286 | { |
11287 | char *note_name = "LINUX"; | |
11288 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11289 | note_name, NT_PPC_TM_CPPR, ppc_tm_cppr, size); |
cb2366c1 EBM |
11290 | } |
11291 | ||
11292 | char * | |
11293 | elfcore_write_ppc_tm_cdscr (bfd *abfd, | |
4b24dd1a AM |
11294 | char *buf, |
11295 | int *bufsiz, | |
11296 | const void *ppc_tm_cdscr, | |
11297 | int size) | |
cb2366c1 EBM |
11298 | { |
11299 | char *note_name = "LINUX"; | |
11300 | return elfcore_write_note (abfd, buf, bufsiz, | |
4b24dd1a | 11301 | note_name, NT_PPC_TM_CDSCR, ppc_tm_cdscr, size); |
cb2366c1 EBM |
11302 | } |
11303 | ||
0675e188 UW |
11304 | static char * |
11305 | elfcore_write_s390_high_gprs (bfd *abfd, | |
11306 | char *buf, | |
11307 | int *bufsiz, | |
11308 | const void *s390_high_gprs, | |
11309 | int size) | |
11310 | { | |
11311 | char *note_name = "LINUX"; | |
11312 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11313 | note_name, NT_S390_HIGH_GPRS, |
0675e188 UW |
11314 | s390_high_gprs, size); |
11315 | } | |
11316 | ||
d7eeb400 MS |
11317 | char * |
11318 | elfcore_write_s390_timer (bfd *abfd, | |
07d6d2b8 AM |
11319 | char *buf, |
11320 | int *bufsiz, | |
11321 | const void *s390_timer, | |
11322 | int size) | |
d7eeb400 MS |
11323 | { |
11324 | char *note_name = "LINUX"; | |
11325 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11326 | note_name, NT_S390_TIMER, s390_timer, size); |
d7eeb400 MS |
11327 | } |
11328 | ||
11329 | char * | |
11330 | elfcore_write_s390_todcmp (bfd *abfd, | |
07d6d2b8 AM |
11331 | char *buf, |
11332 | int *bufsiz, | |
11333 | const void *s390_todcmp, | |
11334 | int size) | |
d7eeb400 MS |
11335 | { |
11336 | char *note_name = "LINUX"; | |
11337 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11338 | note_name, NT_S390_TODCMP, s390_todcmp, size); |
d7eeb400 MS |
11339 | } |
11340 | ||
11341 | char * | |
11342 | elfcore_write_s390_todpreg (bfd *abfd, | |
07d6d2b8 AM |
11343 | char *buf, |
11344 | int *bufsiz, | |
11345 | const void *s390_todpreg, | |
11346 | int size) | |
d7eeb400 MS |
11347 | { |
11348 | char *note_name = "LINUX"; | |
11349 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11350 | note_name, NT_S390_TODPREG, s390_todpreg, size); |
d7eeb400 MS |
11351 | } |
11352 | ||
11353 | char * | |
11354 | elfcore_write_s390_ctrs (bfd *abfd, | |
07d6d2b8 AM |
11355 | char *buf, |
11356 | int *bufsiz, | |
11357 | const void *s390_ctrs, | |
11358 | int size) | |
d7eeb400 MS |
11359 | { |
11360 | char *note_name = "LINUX"; | |
11361 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11362 | note_name, NT_S390_CTRS, s390_ctrs, size); |
d7eeb400 MS |
11363 | } |
11364 | ||
11365 | char * | |
11366 | elfcore_write_s390_prefix (bfd *abfd, | |
07d6d2b8 AM |
11367 | char *buf, |
11368 | int *bufsiz, | |
11369 | const void *s390_prefix, | |
11370 | int size) | |
d7eeb400 MS |
11371 | { |
11372 | char *note_name = "LINUX"; | |
11373 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11374 | note_name, NT_S390_PREFIX, s390_prefix, size); |
d7eeb400 MS |
11375 | } |
11376 | ||
355b81d9 UW |
11377 | char * |
11378 | elfcore_write_s390_last_break (bfd *abfd, | |
11379 | char *buf, | |
11380 | int *bufsiz, | |
11381 | const void *s390_last_break, | |
11382 | int size) | |
11383 | { | |
11384 | char *note_name = "LINUX"; | |
11385 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11386 | note_name, NT_S390_LAST_BREAK, |
355b81d9 UW |
11387 | s390_last_break, size); |
11388 | } | |
11389 | ||
11390 | char * | |
11391 | elfcore_write_s390_system_call (bfd *abfd, | |
11392 | char *buf, | |
11393 | int *bufsiz, | |
11394 | const void *s390_system_call, | |
11395 | int size) | |
11396 | { | |
11397 | char *note_name = "LINUX"; | |
11398 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11399 | note_name, NT_S390_SYSTEM_CALL, |
355b81d9 UW |
11400 | s390_system_call, size); |
11401 | } | |
11402 | ||
abb3f6cc NC |
11403 | char * |
11404 | elfcore_write_s390_tdb (bfd *abfd, | |
11405 | char *buf, | |
11406 | int *bufsiz, | |
11407 | const void *s390_tdb, | |
11408 | int size) | |
11409 | { | |
11410 | char *note_name = "LINUX"; | |
11411 | return elfcore_write_note (abfd, buf, bufsiz, | |
07d6d2b8 | 11412 | note_name, NT_S390_TDB, s390_tdb, size); |
abb3f6cc NC |
11413 | } |
11414 | ||
4ef9f41a AA |
11415 | char * |
11416 | elfcore_write_s390_vxrs_low (bfd *abfd, | |
11417 | char *buf, | |
11418 | int *bufsiz, | |
11419 | const void *s390_vxrs_low, | |
11420 | int size) | |
11421 | { | |
11422 | char *note_name = "LINUX"; | |
11423 | return elfcore_write_note (abfd, buf, bufsiz, | |
11424 | note_name, NT_S390_VXRS_LOW, s390_vxrs_low, size); | |
11425 | } | |
11426 | ||
11427 | char * | |
11428 | elfcore_write_s390_vxrs_high (bfd *abfd, | |
11429 | char *buf, | |
11430 | int *bufsiz, | |
11431 | const void *s390_vxrs_high, | |
11432 | int size) | |
11433 | { | |
11434 | char *note_name = "LINUX"; | |
11435 | return elfcore_write_note (abfd, buf, bufsiz, | |
11436 | note_name, NT_S390_VXRS_HIGH, | |
11437 | s390_vxrs_high, size); | |
11438 | } | |
11439 | ||
88ab90e8 AA |
11440 | char * |
11441 | elfcore_write_s390_gs_cb (bfd *abfd, | |
11442 | char *buf, | |
11443 | int *bufsiz, | |
11444 | const void *s390_gs_cb, | |
11445 | int size) | |
11446 | { | |
11447 | char *note_name = "LINUX"; | |
11448 | return elfcore_write_note (abfd, buf, bufsiz, | |
11449 | note_name, NT_S390_GS_CB, | |
11450 | s390_gs_cb, size); | |
11451 | } | |
11452 | ||
11453 | char * | |
11454 | elfcore_write_s390_gs_bc (bfd *abfd, | |
11455 | char *buf, | |
11456 | int *bufsiz, | |
11457 | const void *s390_gs_bc, | |
11458 | int size) | |
11459 | { | |
11460 | char *note_name = "LINUX"; | |
11461 | return elfcore_write_note (abfd, buf, bufsiz, | |
11462 | note_name, NT_S390_GS_BC, | |
11463 | s390_gs_bc, size); | |
11464 | } | |
11465 | ||
faa9a424 UW |
11466 | char * |
11467 | elfcore_write_arm_vfp (bfd *abfd, | |
11468 | char *buf, | |
11469 | int *bufsiz, | |
11470 | const void *arm_vfp, | |
11471 | int size) | |
11472 | { | |
11473 | char *note_name = "LINUX"; | |
11474 | return elfcore_write_note (abfd, buf, bufsiz, | |
11475 | note_name, NT_ARM_VFP, arm_vfp, size); | |
11476 | } | |
11477 | ||
652451f8 YZ |
11478 | char * |
11479 | elfcore_write_aarch_tls (bfd *abfd, | |
11480 | char *buf, | |
11481 | int *bufsiz, | |
11482 | const void *aarch_tls, | |
11483 | int size) | |
11484 | { | |
11485 | char *note_name = "LINUX"; | |
11486 | return elfcore_write_note (abfd, buf, bufsiz, | |
11487 | note_name, NT_ARM_TLS, aarch_tls, size); | |
11488 | } | |
11489 | ||
11490 | char * | |
11491 | elfcore_write_aarch_hw_break (bfd *abfd, | |
11492 | char *buf, | |
11493 | int *bufsiz, | |
11494 | const void *aarch_hw_break, | |
11495 | int size) | |
11496 | { | |
11497 | char *note_name = "LINUX"; | |
11498 | return elfcore_write_note (abfd, buf, bufsiz, | |
11499 | note_name, NT_ARM_HW_BREAK, aarch_hw_break, size); | |
11500 | } | |
11501 | ||
11502 | char * | |
11503 | elfcore_write_aarch_hw_watch (bfd *abfd, | |
11504 | char *buf, | |
11505 | int *bufsiz, | |
11506 | const void *aarch_hw_watch, | |
11507 | int size) | |
11508 | { | |
11509 | char *note_name = "LINUX"; | |
11510 | return elfcore_write_note (abfd, buf, bufsiz, | |
11511 | note_name, NT_ARM_HW_WATCH, aarch_hw_watch, size); | |
11512 | } | |
11513 | ||
ad1cc4e4 AH |
11514 | char * |
11515 | elfcore_write_aarch_sve (bfd *abfd, | |
11516 | char *buf, | |
11517 | int *bufsiz, | |
11518 | const void *aarch_sve, | |
11519 | int size) | |
11520 | { | |
11521 | char *note_name = "LINUX"; | |
11522 | return elfcore_write_note (abfd, buf, bufsiz, | |
11523 | note_name, NT_ARM_SVE, aarch_sve, size); | |
11524 | } | |
11525 | ||
e6c3b5bf AH |
11526 | char * |
11527 | elfcore_write_aarch_pauth (bfd *abfd, | |
11528 | char *buf, | |
11529 | int *bufsiz, | |
11530 | const void *aarch_pauth, | |
11531 | int size) | |
11532 | { | |
11533 | char *note_name = "LINUX"; | |
11534 | return elfcore_write_note (abfd, buf, bufsiz, | |
11535 | note_name, NT_ARM_PAC_MASK, aarch_pauth, size); | |
11536 | } | |
11537 | ||
bb864ac1 CES |
11538 | char * |
11539 | elfcore_write_register_note (bfd *abfd, | |
11540 | char *buf, | |
11541 | int *bufsiz, | |
11542 | const char *section, | |
11543 | const void *data, | |
11544 | int size) | |
11545 | { | |
11546 | if (strcmp (section, ".reg2") == 0) | |
11547 | return elfcore_write_prfpreg (abfd, buf, bufsiz, data, size); | |
11548 | if (strcmp (section, ".reg-xfp") == 0) | |
11549 | return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); | |
4339cae0 L |
11550 | if (strcmp (section, ".reg-xstate") == 0) |
11551 | return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11552 | if (strcmp (section, ".reg-ppc-vmx") == 0) |
11553 | return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); | |
89eeb0bc LM |
11554 | if (strcmp (section, ".reg-ppc-vsx") == 0) |
11555 | return elfcore_write_ppc_vsx (abfd, buf, bufsiz, data, size); | |
cb2366c1 EBM |
11556 | if (strcmp (section, ".reg-ppc-tar") == 0) |
11557 | return elfcore_write_ppc_tar (abfd, buf, bufsiz, data, size); | |
11558 | if (strcmp (section, ".reg-ppc-ppr") == 0) | |
11559 | return elfcore_write_ppc_ppr (abfd, buf, bufsiz, data, size); | |
11560 | if (strcmp (section, ".reg-ppc-dscr") == 0) | |
11561 | return elfcore_write_ppc_dscr (abfd, buf, bufsiz, data, size); | |
11562 | if (strcmp (section, ".reg-ppc-ebb") == 0) | |
11563 | return elfcore_write_ppc_ebb (abfd, buf, bufsiz, data, size); | |
11564 | if (strcmp (section, ".reg-ppc-pmu") == 0) | |
11565 | return elfcore_write_ppc_pmu (abfd, buf, bufsiz, data, size); | |
11566 | if (strcmp (section, ".reg-ppc-tm-cgpr") == 0) | |
11567 | return elfcore_write_ppc_tm_cgpr (abfd, buf, bufsiz, data, size); | |
11568 | if (strcmp (section, ".reg-ppc-tm-cfpr") == 0) | |
11569 | return elfcore_write_ppc_tm_cfpr (abfd, buf, bufsiz, data, size); | |
11570 | if (strcmp (section, ".reg-ppc-tm-cvmx") == 0) | |
11571 | return elfcore_write_ppc_tm_cvmx (abfd, buf, bufsiz, data, size); | |
11572 | if (strcmp (section, ".reg-ppc-tm-cvsx") == 0) | |
11573 | return elfcore_write_ppc_tm_cvsx (abfd, buf, bufsiz, data, size); | |
11574 | if (strcmp (section, ".reg-ppc-tm-spr") == 0) | |
11575 | return elfcore_write_ppc_tm_spr (abfd, buf, bufsiz, data, size); | |
11576 | if (strcmp (section, ".reg-ppc-tm-ctar") == 0) | |
11577 | return elfcore_write_ppc_tm_ctar (abfd, buf, bufsiz, data, size); | |
11578 | if (strcmp (section, ".reg-ppc-tm-cppr") == 0) | |
11579 | return elfcore_write_ppc_tm_cppr (abfd, buf, bufsiz, data, size); | |
11580 | if (strcmp (section, ".reg-ppc-tm-cdscr") == 0) | |
11581 | return elfcore_write_ppc_tm_cdscr (abfd, buf, bufsiz, data, size); | |
0675e188 UW |
11582 | if (strcmp (section, ".reg-s390-high-gprs") == 0) |
11583 | return elfcore_write_s390_high_gprs (abfd, buf, bufsiz, data, size); | |
d7eeb400 MS |
11584 | if (strcmp (section, ".reg-s390-timer") == 0) |
11585 | return elfcore_write_s390_timer (abfd, buf, bufsiz, data, size); | |
11586 | if (strcmp (section, ".reg-s390-todcmp") == 0) | |
11587 | return elfcore_write_s390_todcmp (abfd, buf, bufsiz, data, size); | |
11588 | if (strcmp (section, ".reg-s390-todpreg") == 0) | |
11589 | return elfcore_write_s390_todpreg (abfd, buf, bufsiz, data, size); | |
11590 | if (strcmp (section, ".reg-s390-ctrs") == 0) | |
11591 | return elfcore_write_s390_ctrs (abfd, buf, bufsiz, data, size); | |
11592 | if (strcmp (section, ".reg-s390-prefix") == 0) | |
11593 | return elfcore_write_s390_prefix (abfd, buf, bufsiz, data, size); | |
355b81d9 UW |
11594 | if (strcmp (section, ".reg-s390-last-break") == 0) |
11595 | return elfcore_write_s390_last_break (abfd, buf, bufsiz, data, size); | |
11596 | if (strcmp (section, ".reg-s390-system-call") == 0) | |
11597 | return elfcore_write_s390_system_call (abfd, buf, bufsiz, data, size); | |
abb3f6cc NC |
11598 | if (strcmp (section, ".reg-s390-tdb") == 0) |
11599 | return elfcore_write_s390_tdb (abfd, buf, bufsiz, data, size); | |
4ef9f41a AA |
11600 | if (strcmp (section, ".reg-s390-vxrs-low") == 0) |
11601 | return elfcore_write_s390_vxrs_low (abfd, buf, bufsiz, data, size); | |
11602 | if (strcmp (section, ".reg-s390-vxrs-high") == 0) | |
11603 | return elfcore_write_s390_vxrs_high (abfd, buf, bufsiz, data, size); | |
88ab90e8 AA |
11604 | if (strcmp (section, ".reg-s390-gs-cb") == 0) |
11605 | return elfcore_write_s390_gs_cb (abfd, buf, bufsiz, data, size); | |
11606 | if (strcmp (section, ".reg-s390-gs-bc") == 0) | |
11607 | return elfcore_write_s390_gs_bc (abfd, buf, bufsiz, data, size); | |
faa9a424 UW |
11608 | if (strcmp (section, ".reg-arm-vfp") == 0) |
11609 | return elfcore_write_arm_vfp (abfd, buf, bufsiz, data, size); | |
652451f8 YZ |
11610 | if (strcmp (section, ".reg-aarch-tls") == 0) |
11611 | return elfcore_write_aarch_tls (abfd, buf, bufsiz, data, size); | |
11612 | if (strcmp (section, ".reg-aarch-hw-break") == 0) | |
11613 | return elfcore_write_aarch_hw_break (abfd, buf, bufsiz, data, size); | |
11614 | if (strcmp (section, ".reg-aarch-hw-watch") == 0) | |
11615 | return elfcore_write_aarch_hw_watch (abfd, buf, bufsiz, data, size); | |
ad1cc4e4 AH |
11616 | if (strcmp (section, ".reg-aarch-sve") == 0) |
11617 | return elfcore_write_aarch_sve (abfd, buf, bufsiz, data, size); | |
e6c3b5bf AH |
11618 | if (strcmp (section, ".reg-aarch-pauth") == 0) |
11619 | return elfcore_write_aarch_pauth (abfd, buf, bufsiz, data, size); | |
bb864ac1 CES |
11620 | return NULL; |
11621 | } | |
11622 | ||
b34976b6 | 11623 | static bfd_boolean |
276da9b3 L |
11624 | elf_parse_notes (bfd *abfd, char *buf, size_t size, file_ptr offset, |
11625 | size_t align) | |
252b5132 | 11626 | { |
c044fabd | 11627 | char *p; |
252b5132 | 11628 | |
276da9b3 L |
11629 | /* NB: CORE PT_NOTE segments may have p_align values of 0 or 1. |
11630 | gABI specifies that PT_NOTE alignment should be aligned to 4 | |
11631 | bytes for 32-bit objects and to 8 bytes for 64-bit objects. If | |
11632 | align is less than 4, we use 4 byte alignment. */ | |
11633 | if (align < 4) | |
11634 | align = 4; | |
ef135d43 NC |
11635 | if (align != 4 && align != 8) |
11636 | return FALSE; | |
276da9b3 | 11637 | |
252b5132 RH |
11638 | p = buf; |
11639 | while (p < buf + size) | |
11640 | { | |
c044fabd | 11641 | Elf_External_Note *xnp = (Elf_External_Note *) p; |
252b5132 RH |
11642 | Elf_Internal_Note in; |
11643 | ||
baea7ef1 AM |
11644 | if (offsetof (Elf_External_Note, name) > buf - p + size) |
11645 | return FALSE; | |
11646 | ||
dc810e39 | 11647 | in.type = H_GET_32 (abfd, xnp->type); |
252b5132 | 11648 | |
dc810e39 | 11649 | in.namesz = H_GET_32 (abfd, xnp->namesz); |
252b5132 | 11650 | in.namedata = xnp->name; |
baea7ef1 AM |
11651 | if (in.namesz > buf - in.namedata + size) |
11652 | return FALSE; | |
252b5132 | 11653 | |
dc810e39 | 11654 | in.descsz = H_GET_32 (abfd, xnp->descsz); |
276da9b3 | 11655 | in.descdata = p + ELF_NOTE_DESC_OFFSET (in.namesz, align); |
252b5132 | 11656 | in.descpos = offset + (in.descdata - buf); |
baea7ef1 AM |
11657 | if (in.descsz != 0 |
11658 | && (in.descdata >= buf + size | |
11659 | || in.descsz > buf - in.descdata + size)) | |
11660 | return FALSE; | |
252b5132 | 11661 | |
718175fa | 11662 | switch (bfd_get_format (abfd)) |
07d6d2b8 | 11663 | { |
718175fa JK |
11664 | default: |
11665 | return TRUE; | |
11666 | ||
11667 | case bfd_core: | |
f64e188b | 11668 | { |
8acbedd6 | 11669 | #define GROKER_ELEMENT(S,F) {S, sizeof (S) - 1, F} |
f64e188b | 11670 | struct |
718175fa | 11671 | { |
f64e188b | 11672 | const char * string; |
8acbedd6 | 11673 | size_t len; |
f64e188b | 11674 | bfd_boolean (* func)(bfd *, Elf_Internal_Note *); |
718175fa | 11675 | } |
f64e188b | 11676 | grokers[] = |
b15fa79e | 11677 | { |
8acbedd6 | 11678 | GROKER_ELEMENT ("", elfcore_grok_note), |
aa1ed4a9 | 11679 | GROKER_ELEMENT ("FreeBSD", elfcore_grok_freebsd_note), |
8acbedd6 KS |
11680 | GROKER_ELEMENT ("NetBSD-CORE", elfcore_grok_netbsd_note), |
11681 | GROKER_ELEMENT ( "OpenBSD", elfcore_grok_openbsd_note), | |
11682 | GROKER_ELEMENT ("QNX", elfcore_grok_nto_note), | |
11683 | GROKER_ELEMENT ("SPU/", elfcore_grok_spu_note) | |
f64e188b | 11684 | }; |
8acbedd6 | 11685 | #undef GROKER_ELEMENT |
f64e188b NC |
11686 | int i; |
11687 | ||
11688 | for (i = ARRAY_SIZE (grokers); i--;) | |
8acbedd6 KS |
11689 | { |
11690 | if (in.namesz >= grokers[i].len | |
11691 | && strncmp (in.namedata, grokers[i].string, | |
11692 | grokers[i].len) == 0) | |
11693 | { | |
11694 | if (! grokers[i].func (abfd, & in)) | |
11695 | return FALSE; | |
11696 | break; | |
11697 | } | |
11698 | } | |
f64e188b NC |
11699 | break; |
11700 | } | |
718175fa JK |
11701 | |
11702 | case bfd_object: | |
11703 | if (in.namesz == sizeof "GNU" && strcmp (in.namedata, "GNU") == 0) | |
11704 | { | |
11705 | if (! elfobj_grok_gnu_note (abfd, &in)) | |
11706 | return FALSE; | |
11707 | } | |
e21e5835 NC |
11708 | else if (in.namesz == sizeof "stapsdt" |
11709 | && strcmp (in.namedata, "stapsdt") == 0) | |
11710 | { | |
11711 | if (! elfobj_grok_stapsdt_note (abfd, &in)) | |
11712 | return FALSE; | |
11713 | } | |
718175fa | 11714 | break; |
08a40648 | 11715 | } |
252b5132 | 11716 | |
276da9b3 | 11717 | p += ELF_NOTE_NEXT_OFFSET (in.namesz, in.descsz, align); |
252b5132 RH |
11718 | } |
11719 | ||
718175fa JK |
11720 | return TRUE; |
11721 | } | |
11722 | ||
11723 | static bfd_boolean | |
276da9b3 L |
11724 | elf_read_notes (bfd *abfd, file_ptr offset, bfd_size_type size, |
11725 | size_t align) | |
718175fa JK |
11726 | { |
11727 | char *buf; | |
11728 | ||
957e1fc1 | 11729 | if (size == 0 || (size + 1) == 0) |
718175fa JK |
11730 | return TRUE; |
11731 | ||
11732 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
11733 | return FALSE; | |
11734 | ||
f64e188b | 11735 | buf = (char *) bfd_malloc (size + 1); |
718175fa JK |
11736 | if (buf == NULL) |
11737 | return FALSE; | |
11738 | ||
f64e188b NC |
11739 | /* PR 17512: file: ec08f814 |
11740 | 0-termintate the buffer so that string searches will not overflow. */ | |
11741 | buf[size] = 0; | |
11742 | ||
718175fa | 11743 | if (bfd_bread (buf, size, abfd) != size |
276da9b3 | 11744 | || !elf_parse_notes (abfd, buf, size, offset, align)) |
718175fa JK |
11745 | { |
11746 | free (buf); | |
11747 | return FALSE; | |
11748 | } | |
11749 | ||
252b5132 | 11750 | free (buf); |
b34976b6 | 11751 | return TRUE; |
252b5132 | 11752 | } |
98d8431c JB |
11753 | \f |
11754 | /* Providing external access to the ELF program header table. */ | |
11755 | ||
11756 | /* Return an upper bound on the number of bytes required to store a | |
11757 | copy of ABFD's program header table entries. Return -1 if an error | |
11758 | occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11759 | |
98d8431c | 11760 | long |
217aa764 | 11761 | bfd_get_elf_phdr_upper_bound (bfd *abfd) |
98d8431c JB |
11762 | { |
11763 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11764 | { | |
11765 | bfd_set_error (bfd_error_wrong_format); | |
11766 | return -1; | |
11767 | } | |
11768 | ||
936e320b | 11769 | return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr); |
98d8431c JB |
11770 | } |
11771 | ||
98d8431c JB |
11772 | /* Copy ABFD's program header table entries to *PHDRS. The entries |
11773 | will be stored as an array of Elf_Internal_Phdr structures, as | |
11774 | defined in include/elf/internal.h. To find out how large the | |
11775 | buffer needs to be, call bfd_get_elf_phdr_upper_bound. | |
11776 | ||
11777 | Return the number of program header table entries read, or -1 if an | |
11778 | error occurs; bfd_get_error will return an appropriate code. */ | |
c044fabd | 11779 | |
98d8431c | 11780 | int |
217aa764 | 11781 | bfd_get_elf_phdrs (bfd *abfd, void *phdrs) |
98d8431c JB |
11782 | { |
11783 | int num_phdrs; | |
11784 | ||
11785 | if (abfd->xvec->flavour != bfd_target_elf_flavour) | |
11786 | { | |
11787 | bfd_set_error (bfd_error_wrong_format); | |
11788 | return -1; | |
11789 | } | |
11790 | ||
11791 | num_phdrs = elf_elfheader (abfd)->e_phnum; | |
01bcaf63 TT |
11792 | if (num_phdrs != 0) |
11793 | memcpy (phdrs, elf_tdata (abfd)->phdr, | |
11794 | num_phdrs * sizeof (Elf_Internal_Phdr)); | |
98d8431c JB |
11795 | |
11796 | return num_phdrs; | |
11797 | } | |
ae4221d7 | 11798 | |
db6751f2 | 11799 | enum elf_reloc_type_class |
7e612e98 AM |
11800 | _bfd_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
11801 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
11802 | const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED) | |
db6751f2 JJ |
11803 | { |
11804 | return reloc_class_normal; | |
11805 | } | |
f8df10f4 | 11806 | |
47d9a591 | 11807 | /* For RELA architectures, return the relocation value for a |
f8df10f4 JJ |
11808 | relocation against a local symbol. */ |
11809 | ||
11810 | bfd_vma | |
217aa764 AM |
11811 | _bfd_elf_rela_local_sym (bfd *abfd, |
11812 | Elf_Internal_Sym *sym, | |
8517fae7 | 11813 | asection **psec, |
217aa764 | 11814 | Elf_Internal_Rela *rel) |
f8df10f4 | 11815 | { |
8517fae7 | 11816 | asection *sec = *psec; |
f8df10f4 JJ |
11817 | bfd_vma relocation; |
11818 | ||
6835821b AM |
11819 | relocation = (sec->output_section->vma |
11820 | + sec->output_offset | |
11821 | + sym->st_value); | |
f8df10f4 | 11822 | if ((sec->flags & SEC_MERGE) |
c629eae0 | 11823 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION |
dbaa2011 | 11824 | && sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
f8df10f4 | 11825 | { |
f8df10f4 | 11826 | rel->r_addend = |
8517fae7 | 11827 | _bfd_merged_section_offset (abfd, psec, |
65765700 | 11828 | elf_section_data (sec)->sec_info, |
753731ee AM |
11829 | sym->st_value + rel->r_addend); |
11830 | if (sec != *psec) | |
11831 | { | |
11832 | /* If we have changed the section, and our original section is | |
11833 | marked with SEC_EXCLUDE, it means that the original | |
11834 | SEC_MERGE section has been completely subsumed in some | |
11835 | other SEC_MERGE section. In this case, we need to leave | |
11836 | some info around for --emit-relocs. */ | |
11837 | if ((sec->flags & SEC_EXCLUDE) != 0) | |
11838 | sec->kept_section = *psec; | |
11839 | sec = *psec; | |
11840 | } | |
8517fae7 AM |
11841 | rel->r_addend -= relocation; |
11842 | rel->r_addend += sec->output_section->vma + sec->output_offset; | |
f8df10f4 JJ |
11843 | } |
11844 | return relocation; | |
11845 | } | |
c629eae0 JJ |
11846 | |
11847 | bfd_vma | |
217aa764 AM |
11848 | _bfd_elf_rel_local_sym (bfd *abfd, |
11849 | Elf_Internal_Sym *sym, | |
11850 | asection **psec, | |
11851 | bfd_vma addend) | |
47d9a591 | 11852 | { |
c629eae0 JJ |
11853 | asection *sec = *psec; |
11854 | ||
6835821b | 11855 | if (sec->sec_info_type != SEC_INFO_TYPE_MERGE) |
c629eae0 JJ |
11856 | return sym->st_value + addend; |
11857 | ||
11858 | return _bfd_merged_section_offset (abfd, psec, | |
65765700 | 11859 | elf_section_data (sec)->sec_info, |
753731ee | 11860 | sym->st_value + addend); |
c629eae0 JJ |
11861 | } |
11862 | ||
37b01f6a DG |
11863 | /* Adjust an address within a section. Given OFFSET within SEC, return |
11864 | the new offset within the section, based upon changes made to the | |
11865 | section. Returns -1 if the offset is now invalid. | |
11866 | The offset (in abnd out) is in target sized bytes, however big a | |
11867 | byte may be. */ | |
11868 | ||
c629eae0 | 11869 | bfd_vma |
217aa764 | 11870 | _bfd_elf_section_offset (bfd *abfd, |
92e4ec35 | 11871 | struct bfd_link_info *info, |
217aa764 AM |
11872 | asection *sec, |
11873 | bfd_vma offset) | |
c629eae0 | 11874 | { |
68bfbfcc | 11875 | switch (sec->sec_info_type) |
65765700 | 11876 | { |
dbaa2011 | 11877 | case SEC_INFO_TYPE_STABS: |
eea6121a AM |
11878 | return _bfd_stab_section_offset (sec, elf_section_data (sec)->sec_info, |
11879 | offset); | |
dbaa2011 | 11880 | case SEC_INFO_TYPE_EH_FRAME: |
92e4ec35 | 11881 | return _bfd_elf_eh_frame_section_offset (abfd, info, sec, offset); |
37b01f6a | 11882 | |
65765700 | 11883 | default: |
310fd250 L |
11884 | if ((sec->flags & SEC_ELF_REVERSE_COPY) != 0) |
11885 | { | |
37b01f6a | 11886 | /* Reverse the offset. */ |
310fd250 L |
11887 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
11888 | bfd_size_type address_size = bed->s->arch_size / 8; | |
37b01f6a DG |
11889 | |
11890 | /* address_size and sec->size are in octets. Convert | |
11891 | to bytes before subtracting the original offset. */ | |
11892 | offset = (sec->size - address_size) / bfd_octets_per_byte (abfd) - offset; | |
310fd250 | 11893 | } |
65765700 JJ |
11894 | return offset; |
11895 | } | |
c629eae0 | 11896 | } |
3333a7c3 RM |
11897 | \f |
11898 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, | |
11899 | reconstruct an ELF file by reading the segments out of remote memory | |
11900 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
11901 | points to. If not null, *LOADBASEP is filled in with the difference | |
11902 | between the VMAs from which the segments were read, and the VMAs the | |
11903 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
11904 | ||
11905 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
11906 | remote memory at target address VMA into the local buffer at MYADDR; it | |
11907 | should return zero on success or an `errno' code on failure. TEMPL must | |
11908 | be a BFD for an ELF target with the word size and byte order found in | |
11909 | the remote memory. */ | |
11910 | ||
11911 | bfd * | |
217aa764 AM |
11912 | bfd_elf_bfd_from_remote_memory |
11913 | (bfd *templ, | |
11914 | bfd_vma ehdr_vma, | |
f0a5d95a | 11915 | bfd_size_type size, |
217aa764 | 11916 | bfd_vma *loadbasep, |
fe78531d | 11917 | int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type)) |
3333a7c3 RM |
11918 | { |
11919 | return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory) | |
5979d6b6 | 11920 | (templ, ehdr_vma, size, loadbasep, target_read_memory); |
3333a7c3 | 11921 | } |
4c45e5c9 JJ |
11922 | \f |
11923 | long | |
c9727e01 AM |
11924 | _bfd_elf_get_synthetic_symtab (bfd *abfd, |
11925 | long symcount ATTRIBUTE_UNUSED, | |
11926 | asymbol **syms ATTRIBUTE_UNUSED, | |
8615f3f2 | 11927 | long dynsymcount, |
c9727e01 AM |
11928 | asymbol **dynsyms, |
11929 | asymbol **ret) | |
4c45e5c9 JJ |
11930 | { |
11931 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
11932 | asection *relplt; | |
11933 | asymbol *s; | |
11934 | const char *relplt_name; | |
11935 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
11936 | arelent *p; | |
11937 | long count, i, n; | |
11938 | size_t size; | |
11939 | Elf_Internal_Shdr *hdr; | |
11940 | char *names; | |
11941 | asection *plt; | |
11942 | ||
8615f3f2 AM |
11943 | *ret = NULL; |
11944 | ||
90e3cdf2 JJ |
11945 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) |
11946 | return 0; | |
11947 | ||
8615f3f2 AM |
11948 | if (dynsymcount <= 0) |
11949 | return 0; | |
11950 | ||
4c45e5c9 JJ |
11951 | if (!bed->plt_sym_val) |
11952 | return 0; | |
11953 | ||
11954 | relplt_name = bed->relplt_name; | |
11955 | if (relplt_name == NULL) | |
d35fd659 | 11956 | relplt_name = bed->rela_plts_and_copies_p ? ".rela.plt" : ".rel.plt"; |
4c45e5c9 JJ |
11957 | relplt = bfd_get_section_by_name (abfd, relplt_name); |
11958 | if (relplt == NULL) | |
11959 | return 0; | |
11960 | ||
11961 | hdr = &elf_section_data (relplt)->this_hdr; | |
11962 | if (hdr->sh_link != elf_dynsymtab (abfd) | |
11963 | || (hdr->sh_type != SHT_REL && hdr->sh_type != SHT_RELA)) | |
11964 | return 0; | |
11965 | ||
11966 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
11967 | if (plt == NULL) | |
11968 | return 0; | |
11969 | ||
11970 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
c9727e01 | 11971 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) |
4c45e5c9 JJ |
11972 | return -1; |
11973 | ||
eea6121a | 11974 | count = relplt->size / hdr->sh_entsize; |
4c45e5c9 JJ |
11975 | size = count * sizeof (asymbol); |
11976 | p = relplt->relocation; | |
cb53bf42 | 11977 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
041de40d AM |
11978 | { |
11979 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
11980 | if (p->addend != 0) | |
11981 | { | |
11982 | #ifdef BFD64 | |
11983 | size += sizeof ("+0x") - 1 + 8 + 8 * (bed->s->elfclass == ELFCLASS64); | |
11984 | #else | |
11985 | size += sizeof ("+0x") - 1 + 8; | |
11986 | #endif | |
11987 | } | |
11988 | } | |
4c45e5c9 | 11989 | |
a50b1753 | 11990 | s = *ret = (asymbol *) bfd_malloc (size); |
4c45e5c9 JJ |
11991 | if (s == NULL) |
11992 | return -1; | |
11993 | ||
11994 | names = (char *) (s + count); | |
11995 | p = relplt->relocation; | |
11996 | n = 0; | |
cb53bf42 | 11997 | for (i = 0; i < count; i++, p += bed->s->int_rels_per_ext_rel) |
4c45e5c9 JJ |
11998 | { |
11999 | size_t len; | |
12000 | bfd_vma addr; | |
12001 | ||
12002 | addr = bed->plt_sym_val (i, plt, p); | |
12003 | if (addr == (bfd_vma) -1) | |
12004 | continue; | |
12005 | ||
12006 | *s = **p->sym_ptr_ptr; | |
65a7a66f AM |
12007 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since |
12008 | we are defining a symbol, ensure one of them is set. */ | |
12009 | if ((s->flags & BSF_LOCAL) == 0) | |
12010 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 12011 | s->flags |= BSF_SYNTHETIC; |
4c45e5c9 JJ |
12012 | s->section = plt; |
12013 | s->value = addr - plt->vma; | |
12014 | s->name = names; | |
8f39ba8e | 12015 | s->udata.p = NULL; |
4c45e5c9 JJ |
12016 | len = strlen ((*p->sym_ptr_ptr)->name); |
12017 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
12018 | names += len; | |
041de40d AM |
12019 | if (p->addend != 0) |
12020 | { | |
1d770845 | 12021 | char buf[30], *a; |
d324f6d6 | 12022 | |
041de40d AM |
12023 | memcpy (names, "+0x", sizeof ("+0x") - 1); |
12024 | names += sizeof ("+0x") - 1; | |
1d770845 L |
12025 | bfd_sprintf_vma (abfd, buf, p->addend); |
12026 | for (a = buf; *a == '0'; ++a) | |
12027 | ; | |
12028 | len = strlen (a); | |
12029 | memcpy (names, a, len); | |
12030 | names += len; | |
041de40d | 12031 | } |
4c45e5c9 JJ |
12032 | memcpy (names, "@plt", sizeof ("@plt")); |
12033 | names += sizeof ("@plt"); | |
8f39ba8e | 12034 | ++s, ++n; |
4c45e5c9 JJ |
12035 | } |
12036 | ||
12037 | return n; | |
12038 | } | |
3d7f7666 | 12039 | |
821e6ff6 AM |
12040 | /* It is only used by x86-64 so far. |
12041 | ??? This repeats *COM* id of zero. sec->id is supposed to be unique, | |
7eacd66b AM |
12042 | but current usage would allow all of _bfd_std_section to be zero. */ |
12043 | static const asymbol lcomm_sym | |
12044 | = GLOBAL_SYM_INIT ("LARGE_COMMON", &_bfd_elf_large_com_section); | |
3b22753a | 12045 | asection _bfd_elf_large_com_section |
7eacd66b | 12046 | = BFD_FAKE_SECTION (_bfd_elf_large_com_section, &lcomm_sym, |
821e6ff6 | 12047 | "LARGE_COMMON", 0, SEC_IS_COMMON); |
ecca9871 | 12048 | |
d1036acb | 12049 | void |
78245035 L |
12050 | _bfd_elf_post_process_headers (bfd * abfd, |
12051 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
d1036acb L |
12052 | { |
12053 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ | |
12054 | ||
12055 | i_ehdrp = elf_elfheader (abfd); | |
12056 | ||
12057 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; | |
d8045f23 NC |
12058 | |
12059 | /* To make things simpler for the loader on Linux systems we set the | |
9c55345c | 12060 | osabi field to ELFOSABI_GNU if the binary contains symbols of |
f64b2e8d | 12061 | the STT_GNU_IFUNC type or STB_GNU_UNIQUE binding. */ |
d8045f23 | 12062 | if (i_ehdrp->e_ident[EI_OSABI] == ELFOSABI_NONE |
f64b2e8d | 12063 | && elf_tdata (abfd)->has_gnu_symbols) |
9c55345c | 12064 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_GNU; |
d1036acb | 12065 | } |
fcb93ecf PB |
12066 | |
12067 | ||
12068 | /* Return TRUE for ELF symbol types that represent functions. | |
12069 | This is the default version of this function, which is sufficient for | |
d8045f23 | 12070 | most targets. It returns true if TYPE is STT_FUNC or STT_GNU_IFUNC. */ |
fcb93ecf PB |
12071 | |
12072 | bfd_boolean | |
12073 | _bfd_elf_is_function_type (unsigned int type) | |
12074 | { | |
d8045f23 NC |
12075 | return (type == STT_FUNC |
12076 | || type == STT_GNU_IFUNC); | |
fcb93ecf | 12077 | } |
9f296da3 | 12078 | |
aef36ac1 AM |
12079 | /* If the ELF symbol SYM might be a function in SEC, return the |
12080 | function size and set *CODE_OFF to the function's entry point, | |
12081 | otherwise return zero. */ | |
9f296da3 | 12082 | |
aef36ac1 AM |
12083 | bfd_size_type |
12084 | _bfd_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
12085 | bfd_vma *code_off) | |
9f296da3 | 12086 | { |
aef36ac1 AM |
12087 | bfd_size_type size; |
12088 | ||
ff9e0f5b | 12089 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT |
aef36ac1 AM |
12090 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0 |
12091 | || sym->section != sec) | |
12092 | return 0; | |
ff9e0f5b | 12093 | |
ff9e0f5b | 12094 | *code_off = sym->value; |
aef36ac1 AM |
12095 | size = 0; |
12096 | if (!(sym->flags & BSF_SYNTHETIC)) | |
12097 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
12098 | if (size == 0) | |
12099 | size = 1; | |
12100 | return size; | |
9f296da3 | 12101 | } |